US20060259049A1 - Clip and clipping instrument for biological tissues - Google Patents
Clip and clipping instrument for biological tissues Download PDFInfo
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- US20060259049A1 US20060259049A1 US10/548,835 US54883504A US2006259049A1 US 20060259049 A1 US20060259049 A1 US 20060259049A1 US 54883504 A US54883504 A US 54883504A US 2006259049 A1 US2006259049 A1 US 2006259049A1
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- Prior art keywords
- clip
- clipping
- tip
- biological tissue
- equipment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
Definitions
- FIG. 10 is a view showing a variation example of a clipping equipment for a biological tissue of the present example
- FIG. 15 is an enlarged view of an operating wire
- FIG. 24 is a perspective of a clipping equipment for a biological tissue in a third embodiment
- a site for mounting a second concave part 6 is not particularly limited as far as it is between a first concave part 5 and a clip tip part, and clipping parts 3 , 3 of a clip tip are tightly abutted thereagainst.
- a plate width ramp 69 on a tip side of a second concave part 6 and making a basal side from a ramp 69 a concave part, when a securing ring 2 is sliding-moved from a mounting position in a first concave part 5 with an external force, it is assuredly mounted in a second concave part 6 .
- An operating wire 23 has a holder 24 fixed at a tip, and has a connecting part 25 having a slightly larger diameter that of a wire body which is equipped with a step 26 .
- a stopper 27 through which an operating wire body can inserted and which is abutted against a step 26 is attached, preventing excessive protrusion of an operating member 22 , and preventing a holder 24 from excessively entering an operating member 22 .
- a material for an operating wire 23 is not particularly limited, but a material, a whole or a part of which has flexibility, is preferable. Specific examples include a metal wire such as stainless steel, and carbon steel, and a resin fiber such as polyamide, polyether, and ultra high molecular weight polyethylene.
- a clipping equipment 20 for a biological tissue since complicating procedure such as mounting and detachment of a clip is not necessary, the equipment is extremely useful as a clipping equipment for a biological tissue which is used in marking for making clear a region where treatment such as ligation and excision of a bleeding site of a biological tissue.
- a method of performing hemostasis using a clipping equipment 40 will be explained by referring to FIG. 28 to FIG. 31 .
- description of a flange 213 of a sliding cylinder 211 is omitted.
- a clip holding member 90 is removed from a sterilized bag in the state where a clip 10 is accommodated in an accommodating groove 92 , and is fixed to an equipment body part 61 . While a tip part of an external casing 21 is grasped by a hand, a tip of a holder 24 is pushed against a guide groove 93 of a clip holding member 90 . In this case, since a hand is not directly contacted with a clip 10 , there is no fear of pollution.
Abstract
A clipping instrument for biological tissues equipped with an outer tube which can be inserted into a biological cavity, an operating member freely passed through the outer tube, an operating wire freely passed though the operating member, a self-opening holder which can be opened and closed by the action of the operating member attached to the edge of the operating wire, and a self-opening clop having a clipping member for clopping a biological tissue which is attached to the edge of the holder in a detachable manner by opening/closing the holder. Using this clopping instrument, a lesion site can be surely clipped over a long period of time in ligating a breeding site in a biological tissue, stitching a laceration, making in excision of a mucosal tissue and so on with an endoscope.
Description
- The present invention relates to a clip and a clipping equipment for biological tissues, which are used as a treating equipment for an endoscope for ligating a bleeding site in a biological tissue, stitching a laceration, and marking in excision of a mucosal tissue with an endoscope.
- A clip used as a treating equipment for an endoscope is used in many cases, such as ligating a bleeding site, stitching a laceration, and marking in excision of a mucosal tissue with an endoscope. A clipping equipment for biological tissues disclosed in Japanese Utility Model Application Laid-Open (JP-U) No. 62-170010 is constructed of a
clip 801 having opening habit, aclip securing ring 802 for closing a clip tip part, and a connectingplate 803 which is detachable on an operating wire in which a hook is attached to a tip (not shown), as shown inFIG. 35 . In thisclipping equipment 800 for biological tissues, when the clipping equipment holds a biological tissue such as a lesion, a connectingplate 803 is attached to a hook, an opened tip part of aclip 801 is pushed against a lesion with an endoscope, an operating wire positioned at a cavity of an operating member is pulled, thereby, aclip 801 is moved so that it is pulled into aclip securing ring 802, thereby, an opening part is closed to clip a lesion. And, since aclip 801 clips a lesion with an opening part on a tip side, a force directed to a basal direction of aclip 801 is exerted on aclip securing ring 802. However, when a biological tissue is ligated once, it is usually necessary to maintain the state where the tissue is clipped for about a few days to one week and, if a tissue immediately comes off, a tissue must be ligated again with a clip. Such the second time treatment is pain to a patient. - In addition, in order to prevent a connecting
plate 803 from protruding from aclip securing ring 802, and preventing aclip 801 from coming out from a hook in the state where aclip 801 has not completely been closed, a gel-like fixing agent 804 is filled into aclip securing ring 802. However, it is difficult to fill into a cavity of a smallclip securing ring 802 from a viewpoint of manufacturing and, upon clipping a biological tissue, there is a problem that afixing agent 804 filled into a cavity of aclip securing ring 802 is peeled and fallen. - Japanese Patent Application Laid-Open (JP-A) No. 50-75797 discloses a tissue clipping equipment for grasping a tissue in a body with a clip using an endoscope, and dwelling the clip therein. Since in this clipping equipment, a clip is directly mounted on a hook provided on a tip of an operating wire, there is a problem that, when a clip is dwelled, a clipping equipment must be moved forwardly and backwardly, and left and right in order to remove a clip from a hook, thus, a way to use it is troublesome.
- JP-U No. 2-6011 discloses a
clipping equipment 900 which overcomes the aforementioned disadvantage, as shown inFIG. 36 . Thisclipping equipment 900 is equipped with ahook 902 provided on a tip of anoperating wire 901, and a connectingmember 903 having anengaging pore 904 engaging with apin 906 of ahook 902 on one end, and having a crook (not shown) which is connected to a clip and is deformable by stretching on the other end, wherein when a connectingplate 903 is moved to a hand side via anoperating wire 901 in order to dwell aclip 905 in a biological tissue, a crook of a connectingplate 904 is stretched, and the engaging state of aclip 905 and a connectingplate 903 is released. - Although this
clipping equipment 900 improved troublesome operation of removing a clip from a hook, since a connectingplate 903 is engaged with anoperating wire 901 also after clip dwelling, a connectingplate 903 must be removed after taken out from an endoscope, and there is a problem of disposal of a connectingplate 903 which has become an unnecessary part. In addition, there is a problem that, since a connectingplate 903 is small, it is sucked into a sucking port of an endoscope rarely, and this becomes a cause for worse suction. In addition, as a common problem of clipping equipments described in JP-A No. 50-75797 and JP-U No. 2-6011, there is a problem that, when a clip is mounted on a clipping equipment, since a hook is a cantilevered type, balance is worse, and a clip is easily detached from a hook. - On the other hand, JP-U No. 1-77703 shows a clipping equipment in which a ratchet mechanism consisting of an engaging claw and a claw to be engaged of a ratchet is applied. This clipping equipment is such that a pitch of a claw to be engaged is formed finer than that of an engaging claw, or at least two sets of an engaging claw and a claw to be engaged are disposed, and a phase of one of them is shifted without altering a pitch of a claw, and a moving pitch is small-sized as a whole, in which by pulling a wire fixing a clip, and opening a clip to a greatest degree and further pulling a wire, a clip is closed and, finally, a connecting plate is destructed, releasing a clip.
- According to this clipping equipment, a movement amount of an operating member can be operated finer by a ratchet mechanism. However, since attachment of a clip and operation of opening are performed by a ratchet mechanism, there is a problem that, in order to assuredly stop a clip at an intended position, an operator must perform position adjusting operation while seeing a clip, and operation is troublesome.
- In addition, in a
clipping equipment 900 described in JP-U No. 2-6011, since operation of engaging with apin 906 of a hook and a smallengaging pore 904 of a connectingplate 903 is performed in a dim endoscope chamber, it is difficult to mount aclip 905. In addition, since a handle is operated in the state where apin 906 is engaged into anengaging pore 904, apin 906 is detached during handle operation in some cases. Further, in many cases where a lesion must be grasped with a clip, it is difficult to perform rapid operation. - In addition, JP-A No. 2000-335631 discloses a clip packaging body for an endoscope in which a clip for an endoscope can be accommodated between substrates. According to this endoscope packaging body, when sterilization treatment is performed in a packaging body in advance, sterilization working becomes easy. However, in order to mount a clip on a clipping equipment from this clip packaging body for an endoscope, it is necessary to grasp a clip by one hand from above the packaging body in the state where a clip packaging body for an endoscope is opened half, so that a clip is not directly contacted with a hand, and hang a pin of a hook on a small engaging pore of a connecting plate in the state where two members of a handle and an operating member are grasped by the other hand. Such the operation needs a skill and is troublesome.
- Therefore, an object of the present invention is to provide a treating equipment clip for an endoscope which can assuredly clip a lesion over a long period of time, in ligating a bleeding site of a biological tissue, stitching a laceration, and marking in excision of a mucosal tissue with an endoscope. In addition, another object of the present invention is to provide a clipping equipment for a biological tissue which does not need seeing a degree of opening of a clip and does not need fine positioning adjustment. In addition, other object of the present invention is to provide a clipping equipment for a biological tissue which does not need troublesome operation for mounting and removing a clip.
- That is, the present invention provides a clip comprising a self-opening clip body having a clipping part on a tip and provided with a twin-arm part extending from a basal part, and a securing ring, wherein the self-opening clip body has a first concave part on a clip basal part, and a second concave part between the first concave part and a clip tip part, respectively, the securing ring is mounted on the first concave part, and is sliding-moved from a mounting position of a first concave part with an external force to be mounted on a second concave part, thereby, said clip is used as a treating equipment for an endoscope of closing a clipping part at a tip of the clip body.
- Also, the present invention provides a clipping equipment for a biological tissue equipped with an outer tube which can be inserted into a biological cavity, an operating member freely passed through the outer tube, an operating wire freely passed through the operating member, and a self-opening holder which can be opened and closed by the action of the operating member attached to a tip of the operating wire.
- Also, the present invention provides a clip holder having one or two or more clip accommodating grooves for accommodating a clip comprising a self-opening clip body having a clipping part on a tip and equipped with a twin-arm part extending from a basal part, and a securing ring freely moving in a tip direction which is mounted in a concave part of the basal part, in the state where said clip is sunk with its tip facing downwardly.
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FIG. 1 is a perspective of a clip of an embodiment of the present invention, -
FIG. 2 is a view showing the closed state of a clip ofFIG. 1 , -
FIG. 3 is a cross-sectional view showing use aspect of a clip ofFIG. 1 , -
FIG. 4 is a perspective showing a part of a tip side of a clipping equipment for a biological tissue of the present example, -
FIG. 5 is a view showing the state where a clip is mounted, -
FIG. 6 is a view showing the state where a clip is closed, -
FIG. 7 is a view showing the state where a closed clip is detached, -
FIG. 8 is a cross-sectional view of a tip side of a clip equipment omitting description of a clip, -
FIG. 9 is a longitudinal cross-sectional view ofFIG. 6 , -
FIG. 10 is a view showing a variation example of a clipping equipment for a biological tissue of the present example, -
FIG. 11 is a perspective showing a part of a clipping equipment for a biological tissue in a second embodiment, -
FIG. 12 is a cross-sectional view showing a part of a clipping equipment for a biological tissue of the present example, -
FIG. 13 is an exploded view of a clipping equipment for a biological tissue of the present example, -
FIG. 14 is an enlarged view omitting a part of a bar-like member, -
FIG. 15 is an enlarged view of an operating wire, -
FIG. 16 is a view in which an operating wire ofFIG. 15 is seen from an upper side, -
FIG. 17 (A) is a view showing an abutment relationship between an operating member and a sliding short casing, (B) is a view in which the equipment is seen along with an A-A line of (A), -
FIG. 18 (B) is a front view showing a part of a handle axis which is a member constituting a clip equipment of the present example (A) is a left side view of (B), -
FIG. 19 (B) is a front view of a rotation body which is a member constituting a clip equipment of the present example, (A) is a left side view of (B), (C) is a right side view of (B), -
FIG. 20 (B) is a front view of a position holding means which is a member constituting a clipping equipment of the present example, (A) is a left side view of (B), -
FIG. 21 (B) is a front view of a stopping means which is a member constituting a clipping equipment of the present example, (A) is a left side view of (B), -
FIG. 22 is a longitudinal cross-sectional view for explaining each operating step of a clipping equipment of the present example, -
FIG. 23 is a view for explaining movement of a rotation body, -
FIG. 24 is a perspective of a clipping equipment for a biological tissue in a third embodiment, -
FIG. 25 is a front view of a mounting equipment which is mounted on a clipping equipment for a biological tissue of the present example, -
FIG. 26 is a perspective of a clip holder, -
FIG. 27 is a cross-sectional view of a clip holding member, -
FIG. 28 is a view for explaining a method of using a clipping equipment for a biological tissue of the present example, -
FIG. 29 is a view showing the state where a clip is held, -
FIG. 30 is a view showing the state where a clip is accommodated in an external casing, -
FIG. 31 is a view showing the state where a clip having a closed tip is detached from a holder, -
FIG. 32 is a perspective of other clip holder, -
FIG. 33 andFIG. 34 are cross-sectional views for explaining a method of using other clip holder, -
FIG. 35 is a cross-sectional view of a part of the previous clipping equipment, and -
FIG. 36 is a perspective of a part of the previous other clipping equipment. - In a clipping equipment for a biological tissue (hereinafter, simply also referred to as “clipping equipment”) of the present invention and a clip, a tip side refers to a biological tissue side in the use state, and a basal side refers to a side opposite to a biological tissue. A clip in an embodiment of the present invention will be explained by referring to
FIG. 1 toFIG. 3 . As shown inFIG. 1 andFIG. 2 , aclip 10 of the present example comprises a clip body 1 obtained by bending an elongate metal plate spring at a central part, and acylindrical securing ring 2. A clip body 1 comprises clippingparts basal part 4 exhibiting a generally U-shaped cross section, and twin-arm parts basal part 4. Since a metal plate spring constituting a clip body is movably inserted in a cavity of an operating member described later, a width size w thereof is restricted. - A clip body 1 has a first
concave part 5 on abasal part 4, andsecond concaves concave part 5 and a clip tip part, respectively, and a securingring 2 is mounted on a firstconcave part 5. As a site for mounting a firstconcave part 5 in a basal part, such a position is preferable that a space in which a tip of aholder 8 can be hung on a generally U-shapedcross-sectional part 41 is possessed, and opening of a clip tip in the opened state cannot be narrowed. In addition, a site for mounting a secondconcave part 6 is not particularly limited as far as it is between a firstconcave part 5 and a clip tip part, and clippingparts plate width ramp 69 on a tip side of a secondconcave part 6, and making a basal side from a ramp 69 a concave part, when a securingring 2 is sliding-moved from a mounting position in a firstconcave part 5 with an external force, it is assuredly mounted in a secondconcave part 6. It is preferable that a concave degree of a secondconcave part 6 of a clip body is larger than a concave degree of a firstconcave part 5 in that a securingring 3 can be ensured. In addition, in clippingparts - In a
clip 10, aholder 3 on a tip is usually opened as shown inFIG. 1 and, in this state, a securingring 2 is mounted on a firstconcave part 5 of abasal part 4. Since a cavity part of a securingring 2 is hung on a recess part, a securingring 2 mounted in a firstconcave part 5 is not naturally moved forwardly and backwardly as far as an external force is exerted, and is not slipped on a tip side, not narrowing an opening width of aclipping part 3. Examples of a material for a clip include stainless steel, and titanium. In addition, a length of an arm part of a clip is not particularly limited, but is preferably 2.0 to 6.0 mm, particularly preferably 3.0 to 5.0 mm. When the length is within the aforementioned range, particularly, holding property of a clip is excellent. - Then, a method of clipping a biological tissue with a
clip 10 will be explained. First, a pair of self-opening arm-like holders 8 which is attached to a tip of anoperating wire 7 of a clipping equipment are hung on an internal side of a generally U-shaped crosssectional part 41 of abasal part 4 of a clip 1. Then, when anoperating wire 7 which is in a cavity of an operating member 9 and can be moved forwardly and backwardly is pulled,holders 8 are pulled into a cavity of an operating member 9, and a securingring 2 is abutted against atip 91 of an operating member 9. By further pulling anoperating wire 7, a twin-arm part 11 of an clip body is gradually pulled into a cavity of a securingring 2 from a basal part side of a clip and, when pulled until a position of a secondconcave part 6, astep 69 and a securingring 2 are abutted, thereby, a securingring 2 is stopped, clippingparts FIG. 2 ). Then, when anoperating wire 7 is pushed in a direction opposite to pulling of anoperating wire 7, that is, forwardly, a self-openingholder 8 is automatically come out from abasal part 4 of a clip. On the other hand, since a securingring 2 is fixed firm in a recess part of a secondconcave part 6, a clip body 1 in the closed state can assuredly clip a biological tissue to be clipped regardless of a size thereof, the tissue is not come out therefrom, and the state where a biological tissue is clipped can be maintained over a long period of time. - As a material for a clip body 1, a metal such as stainless steel and a titanium alloy, and a plastic such as an ABS resin, a rigid vinyl chloride resin, polyamide and polyethylene are preferable in that they are not corroded in a cavity, particularly, in stomach in which a digestion enzyme is secreted. In addition, a material rich in elasticity is preferable in that, upon clipping of a biological tissue, a
clipping part 3 at a clip tip is brought into the closed state from the opened state, and is it necessary to retain the closed state for a long period of time. In addition, a material for a securing ring is not particularly limited, but the ring is used together with a clip body 1, and examples of the material include the same material as that of a clip body 1. - Specifically, a plastic such as fluorine resin, polyamine, and a silicone resin, and a metal such as stainless steel, and a titanium alloy are preferable.
- According to a
clip 10 of the present embodiment example, a biological tissue such as a lesion can be assuredly clipped over a long period of time. - A clipping equipment for a biological tissues in the first embodiment of the present invention will be explained by referring to
FIG. 4 toFIG. 10 . Aclipping equipment 20 for a biological tissue in an embodiment of the present example is equipped with anouter tube 21 which can be inserted into a biological cavity, an operatingmember 22 freely passed through theouter tube 21, anoperating wire 23 freely passed though the openingmember 22, a self-openingholder 24 which can be opened and closed by the action of the operating member attached to a tip of theoperating wire 23, and a self-openingclip 10 a having a clipping member for clipping a biological tissue which is attached to a tip of theholder 24 in a detachable manner by opening/closing the holder. For example, a basal part of anoperating wire 23 is connected to a handle (not shown). - In a
clipping equipment 20 for a biological tissue, a material for an operatingmember 22 is not particularly limited, but examples include a thermoplastic resin such as polyether ether ketone, polyamide, and polyimide, and a thin metal coil. A thermoplastic resin is preferable in that it can assuredly transmit movement of an operating handle to a tip side, and a thin metal coil is preferable in that although a gap is formed by bending or pulling, bending property and rigidity are excellent. An external diameter of an operatingmember 22 is not particularly limited, but is preferably 1.7 to 2.7 mm, particularly preferably 1.9 to 2.3 mm. - An
operating wire 23 has aholder 24 fixed at a tip, and has a connectingpart 25 having a slightly larger diameter that of a wire body which is equipped with astep 26. In addition, at a position apart from a tip of an operatingmember 22 to a basal side by a stroke of an operating member, and on an internal wall of an operatingmember 22, astopper 27 through which an operating wire body can inserted and which is abutted against astep 26 is attached, preventing excessive protrusion of an operatingmember 22, and preventing aholder 24 from excessively entering an operatingmember 22. A material for anoperating wire 23 is not particularly limited, but a material, a whole or a part of which has flexibility, is preferable. Specific examples include a metal wire such as stainless steel, and carbon steel, and a resin fiber such as polyamide, polyether, and ultra high molecular weight polyethylene. - An
outer tube 21 is a hollow continuous flexible member. An internal diameter of anexternal casing 21 is not particularly limited, but is preferably 1.8 to 2.8 mm, particularly preferably 2.0 to 2.4 mm. When an internal diameter is within the aforementioned range, operating property is particularly excellent. In addition, a length of anexternal casing 21 is not particularly limited, but is preferably 1,500 to 3,000 mm, particularly preferably 1,600 to 2,300 mm. When the length is within the aforementioned range, operating property in an endoscope is particularly excellent. A material for anexternal case 21 is not particularly limited, but examples include a fluorine resin such as polytetrafluoroethylene (PTFE), and a tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP). - In a
clipping equipment 20 for a biological tissue, aclip 10 a is not particularly limited as far as it is equipped with a self-opening twin-arm part 11 a, and a securingring 12 for closing a clippingpart 15 of a twin-arm part 11 a as shown inFIG. 4 , but aclip 10 shown inFIG. 1 andFIG. 2 is preferable. - A method of mounting a
clip 10 a in aclipping equipment 20 for a biological tissue by the aforementioned construction will be explained. For example, in the state ofFIG. 4 , anoperating wire 23 is fixed at an operating handle and, by pulling an operating handle, an operatingmember 22 is moved on aholder 24 side in a direction of an axis line of anoperating wire 23. Thereby, aholder 24 consisting of a pair of arm parts enters a basal side while contacting with an internal circumferential surface of an operatingmember 22, therefore, is gradually being closed. And, atip hook 28 of an operatingmember 22 is closed, clipping abasal part 14 of aclip 10 a to retain aclip 10 a. Further, by pulling an operating handle, a securingring 12 is abutted against a tip of an operatingmember 22, and then a securingring 12 is abutted against astep 13 which is between both arm parts of aclip 10 a,closing clipping parts FIG. 6 ,FIG. 9 ). By returning an operatingmember 22 to an original position from this state, aholder 24 is protruded from an operatingmember 22, self-opening property possessed by aholder 24 makes a pair of arm parts in the opened state, and aclip 10 a while it is opened can be detached. - According to a
clipping equipment 20 for a biological tissue, complicated operating is not necessary in mounting or detaching a clip. In addition, when aclip 10 a is retained by aholder 24, even if an operatingmember 22 is moved slightly, since aholder 24 is still accommodated in a cavity of an operatingmember 22, and tip hooks 28 are overlaid each other, aclip 10 a is not easily fallen. In addition, even when a gap between tip hooks 28 is slightly opened, since a plate of aU-shaped cross section 41 of abasal part 4 of aclip 10 a has an extent of a width, aclip 10 a is not fallen from aholder 24. - In a
clipping equipment 20 for a biological tissue, a shape of aholder 24 is not limited to the aforementioned generally V-letter shape, but for example, a generallyU-letter shape 24 a as shown inFIG. 10 suffices. By curving an arm part of aholder 24 a, a load applied to a connectingpart 25 accompanied with shape change can be dispersed, spring characteristic is improved and, further, a tip part can be closed more rapidly as compared with a linear-like state. As a curved shape, any shape can be adopted in view of a time of opening and closing motion of a twin-arm part, and spring characteristic. - In addition, a method of operating
member 22 and anoperating wire 23 is not limited to the aforementioned method, but examples include a method of fixing anoperating wire 23, and moving an operatingmember 22, and a method of moving both of anoperating wire 23 and an operatingmember 22. - According to a
clipping equipment 20 for a biological tissue, since complicating procedure such as mounting and detachment of a clip is not necessary, the equipment is extremely useful as a clipping equipment for a biological tissue which is used in marking for making clear a region where treatment such as ligation and excision of a bleeding site of a biological tissue. - Then, a clipping equipment for a biological tissue in a second embodiment will be explained by referring to
FIG. 11 toFIG. 23 . InFIG. 12 , description of a slidingcylinder 211 ofFIG. 11 is omitted. In aclipping equipment 30 for a biological tissue of the present example, the same symbol is added to the same component as that of theclipping equipment 20 for a biological tissue in the first embodiment example, explanation thereof is omitted, and different points will be mainly explained. That is, in aclipping equipment 30 for a biological tissue, a different point from aclip equipment 20 for a biological tissue is in that the equipment further has ahandle 51 for controlling an operating member, and a first forcing mechanism for forwarding ahandle 51 and, at the same time, stopping forwarding of ahandle 51, a retaining mechanism for retaining a stoppage position of ahandle 51 once, a second forcing mechanism for further forwarding from a stoppage position of ahandle 51 and, at the same time, stopping forwarding of a handle, and a returning mechanism by which ahandle 51 is automatically returned to a position before first forcing are provided. That is, aclipping equipment 30 consists of anexternal casing 21, a hollow slidingcylinder 211 which is connected to anexternal casing 21 on a tip side, and provided with a connectingflange 213 on a basal side, anequipment body part 61 equipped with a main chamber in which a tip side part is fitted into a cavity of a slidingcylinder 211, a stopping means situated on a tip side which is mounted in a main chamber of anequipment body part 61 in the fixed state, a position retaining means 64 which is mounted in a main chamber adjacent to a stopping means 63 on a basal side in the fixed state, ahandle 51 which is inserted into anequipment body part 61 from a basal side, and a bar-like member 71 in which one end on a basal side is abutted against a back of asubstrate 651 of arotation body 65, and the other end is protruded from a tip side of anequipment body part 61. - A
handle 51 consists of a ring-like clipping part 511, and ahandle axis 512 in which one end is connected to aclipping part 511 and the other end is equipped with a crown-likefirst cam part 514. A clippingpart 511 is operated by an operator by grasping with a hand, and has such an extent of a space that a finger of an operator can be inserted. Afirst cam part 514 is a ring-like projection having 6 triangular projections in which valley parts are formed every 60 degree on an end face of a cylindrical member. Afirst cam part 514 engages with three engagingfeathers 653 of arotation body 65 which moves in a stopping means 63 and in a position retaining means 64, and imparts a forwarding force and a rotating force to arotation body 65. In the figure, for drawing reason, there is a different form around a connecting part of a ring-like clipping part 511 and ahandle axis 512. - A position retaining means 64 is a cylindrical member which is fixed in a
main chamber 615 of anequipment body part 61, determines a position of accommodation of arotation body 65 in the state before operation, guides forwarding of arotation body 65 by first forcing operation and, at the same time, leads a rotation body to a position of initiation of second forcing. On an internalcircumferential surface 644, threefitting groves 641 in which three plate-like feather members 653 of arotation body 65 are fitted are formed along with a longitudinal direction. In addition, on a circumferential edge of an opening on a tip end, acam group 642 equipped with 6 saw blade cross section-shapednotches 645 is attached. When a tip of afeather member 653 of a rotation body is abutted against an inclined surface of anotch 645 by spring power, acam groove 642 imparts rotation of maximum 60 degree. An inclined surface of anotch 645 is formed as a descending inclination in a counterclock direction seen from a tip side. - A stopping
means 63 is a cylindrical member which is fixed adjacent to a tip side of a position retaining means 64 in a main chamber of anequipment body part 61, stops a enteringrotation body 65 by first forcing operation and, at the same time, guides entrance of arotation body 65 by second forcing operation. A stoppingmeans 63 has threeribs 631 extending from a tip side to a midway in an axial direction on an internal circumferential surface (length of symbol m ofFIG. 22 ). Threeribs 631 are formed at an interval of 120 degree, and one rib is formed at a position at 50 degree counterclockwisely relative to a vertical axis seen from a tip side. A stoppingmeans 63 is such that a tip opening is abutted against a wall of a main chamber in the state where it is disposed in a main chamber of anequipment body part 61. For this reason, arotation body 65 is not protruded from a stopping means 63 in a tip direction. A length l of a stopping means 63 is a forwarding stroke of arotation body 65. - A
rotation body 65 is fitted with afirst cam part 514 at a tip of a handle axis, and is forwarded, retreated or rotated in a position retaining means 64 and a stopping means 63 to transmit an operating force to a bar-like member 71. Arotation body 65 has asubstrate 651 positioned at a tip side which hasnotches 654 at a 120 degree pitch, and asecond cam part 654 having one end on a basal side thereof of a sharp cross section shape with a plate-like feather member 653 which extends in an axial direction, at the same time, is attached at a 120 degree pitch betweennotches 654, on asubstrate 651. In addition, the body has anengaging pore 655 with which atip part 731 of a bar-like member 71 is engaged, on a center of a back of asubstrate 651. - A bar-
like member 71 has aholder 24 attached at a tip, and is equipped with anoperating wire 23 in which a basal end is fixed at a fixingring part 73, an operatingmember 22 having a cavity in which anoperating wire 23 is inserted, and having a regulatingpart 741 on a basal end, and a slidingshort casing 75 in which awindow part 751 is formed on an external circumferential surface of a cylindrical casing abutting with a regulatingpart 741 on a basal side. Abasal part 751 of a slidingshort casing 75 is engaged with an engagingpore 655 on a back of asubstrate 651 of a rotating body. A fixingring part 73 is fixed on a tip side slightly from a main chamber of anequipment body part 61, and is not interlocked with operation of a handle. A fixingring part 73 of anoperating wire 23 is slidably fitted in awindow part 751 of a slidingshort casing 75. An operatingmember 22 is forwarded against spring power of aspring 74 via a slidingshort casing 75 by forwarding of a rotation body 65 (forwarding of a handle 51) and, when arotation body 65 is retreated by spring power of aspring 74, the member is retreated interlocking therewith. In addition, since anoperating wire 23 is freely inserted into an operatingmember 22, and a connectingpart 733 on a basal side is slided in awindow part 751 of a slidingshort casing 75, this is not interlocked with operation of a handle 51 (movement of an operating member 22). - An interior of an
equipment body part 61 has, in an order from a tip side, atip opening 616 in which an operatingmember 22 comes in and out, achamber 614 for accommodating aspring 74, a fixingpart 617 at which afixing ring part 73 of a bar-like member is fixed, amain chamber 615 in which a stopping means 63 and a position retaining means 64 are accommodated, and an insertingport 616 in which a tip of a handle axis is inserted. In anequipment body part 61, afirst flange part 611, and asecond flange part 612 are attached to a cylindrical body from a basal side, to enhance operating property. - A sliding
cylinder 211 is a member for operating forwarding and retreating of a hollowexternal casing 21, and is a cylindrical entity which is fitted at a tip part of anequipment body part 611. A tip side is connected to a hollowexternal casing 21 which is inserted into a biological cavity, and a fixingflange 213 having a convex part (not shown) fitting in aconcave part 613 of an equipment body part is provided on a basal side. Anengagement releasing means 214 for releasing engagement between aslide cylinder 211 and anequipment body 61 is attached to a fixingflange 213. An operatingmember 22 is inserted into anexternal casing 21. And, a slidingcylinder 211 mounted on anequipment body part 61 is such that, when operation of pulling ahandle 51 in the state where engagement with anequipment body part 61 is released, or forcing a slidingcylinder 21 therein is performed, anexternal casing 21 is forwarded to an operatingmember 22. Thereby, a twin-arm part of aclip 10 a is closed, and can be transiently accommodated in anexternal casing 21 in the state where aclip 10 a is closed. Thereby, when anexternal casing 21 is inserted into an endoscope, since aclip 10 a is accommodated in anexternal casing 21, a forceps pore of an endoscope is not damaged. - Then, a method of operating a
clipping equipment 30 of a second embodiment example will be explained below by referring to mainlyFIG. 22 andFIG. 23 . A method of operating aclipping equipment 30 comprises first forcing operation, retaining step, second forcing operation and returning step. In first forcing operation, when ahandle 51 is pushed, afirst cam part 514 at a tip of a handle and asecond cam part 654 of arotation body 65 are abutted (FIG. 22 (a) andFIG. 23 (a)). In this case, afirst cam part 514 and asecond cam part 654 are arranged so that mutual mountain-like top parts of cam parts are slightly slipped. Therefore, a mountain-liketop part 515 of afirst cam part 514 at a tip of a handle is forwarded while abutting against a mountain-like inclination of asecond cam part 654 of a rotation body. And, arotation body 65 is forwarded from a position retaining means 64 to a stopping means 63. When arotation body 65 enters a stopping means 63, afirst cam part 514 and asecond cam part 654 are completely engaged, and arotation body 65 is rotated from an original position by 30 degree counterclockwisely (first rotation). In this state, since asubstrate 651 of a rotation body is in a relation that the substrate is abutted with arib 631 of a stopping means 63, arotation body 65 is moved by a stroke n, runs against an end face of arib 631, and is stopped (FIG. 22 (b) andFIG. 23 (b)). By first forcing operation, an operatingmember 22 of a bar-like member 71 which is interlocked with movement of arotation 65 is forwarded, aholder 24 is pulled into anoperation member 22 to close a tip of aholder 24, making aholder 24 retain aclip 10 a (FIG. 5 ). - In a retaining step, after first forcing operation, when a hand is released from a
handle 51, arotation body 65 is retreated by an elastic force of aspring 74, and a second cam part of arotation body 65 and acam groove 642 of a position retaining means are engaged. Thereupon, a tip of a second cam part of arotation part 65 is rotated from an original position by 60 degree counterclockwisely along with inclination of saw blade-like cam groove 642 (second rotation), and is stopped in a valley part of a cam groove 642 (FIG. 22 (c) andFIG. 23 (c)). Thereby, the state where an openedclip 10 a is retained at a tip of aholder 24 can be maintained. In addition, since an opening degree of aclip 10 a is constant, position adjustment by fine handle procedure becomes unnecessary. - In second forcing operation, when a
handle 51 is pushed from the retention state, afirst cam part 514 of a handle axis and a second cam part of a rotation body are engaged, and arotation body 65 is further rotated from an original position by 90 degree (third position). In this state, anotch part 654 of arotation part 65 and arib 631 of a stopping means 63 are in a fitting positional relationship. In this state, when ahandle 51 is forced, arotation body 65 is forwarded to a tip of a stopping means 63 (FIG. 22 (d) andFIG. 23 (d)). By second forcing operation, an operatingmember 22 of a bar-like member 71 which is interlocked with movement of arotation body 65 is further forwarded by a stroke m, closing a clippingpart 15 of aclip 10 a (FIG. 6 ). - In a returning step, after second forcing operation, when a hand is released from a
handle 51, an operatingmember 22 is returned by elastic action of aspring 74 and, interlocking therewith, fitting between arotation body 65, afeather member 653, and arib 631 of a stopping means 63 is released, a tip of arotation body 65 comes to aspiral cam groove 642, is further moved along with its inclination, and is stopped at a valley part, rotating from an original position by 120 degree counterclockwisely (forth rotation). In this state, afeather member 653 of arotation body 65 and agroove 641 of a position retaining means 64 are positioned so that they are fitted. For this reason, arotation body 65 is automatically returned to an original position. Since by a returning step, an operatingmember 22 is returned to an original position, a tip of a self-opening holder is opened, and aclip 10 a is detached from aholder 24. On the other hand, a clip of 10 a is still closed, and mounting of a biological tissue on aclip 10 a is completed. - In a
clipping equipment 30 of a second embodiment example, an operating method is not limited to the aforementioned method of fixing anoperating wire 23, and moving an operatingmember 22 by seeing relatively, but by reversing a position of a spring, and directions of a rotation body, a stopping means, and a position retaining means, an operation member may be fixed, and an operating wire may be moved. Alternatively, by changing shapes of a rotation body, a stopping means, and a position retaining means, multi-stage stoppage, and position retaining may be performed. - According to a
clipping equipment 30 of a second embodiment example, when ligation and excision of a bleeding site of a biological tissue with an endoscope are performed, since it is not necessary to see an extent of opening of a clip with an endoscope, and fine position adjustment wit handle operation becomes unnecessary, a treatment time can be shortened. Alternatively, by imparting a stoppage position having a constant moving distance, a tip of an endoscope treating equipment can be put in and out by a constant amount. - Then, a clipping equipment in accordance with a third embodiment will be explained by referring to
FIG. 24 toFIG. 31 . In aclipping equipment 40 in a third embodiment, the same symbol is added to the same component as that of theclipping equipment 30 in a second embodiment, explanation thereof will be omitted, and different points will be mainly explained. That is, a different point from aclipping equipment 30 in aclipping equipment 40 is in that aclip retaining member 90 is attached to an external circumferential surface of anequipment body part 61 near asecond flange 612. Aclip retaining member 90 is ablock body 91, and has three ofclip accommodating grooves 92 for accommodating a tip of aclip 10 downwardly in the sunk state, and generally crossgrooves 94 consisting ofguide grooves 93 which run straight through a center of anaccommodating group 92, in a direction orthogonal with anaccommodating groove 92. In addition, an engaginggroove 94 which engages with a mountingequipment 80 is formed on a back of ablock body 91. By closing one end of an engaginggroove 94 to be a wall, positioning becomes easy. That is, when a plate-likeengaging piece 81 of a mounting equipment is completely engaged with an engaginggroove 94, aclip retaining member 90 is situated approximately at a center of anequipment body part 61. - A
clip accommodating groove 92 is slightly larger than a plate width of a twin-arm part 11, and is slightly wider from a deepest part towards a surface. A depth of aclip accommodating groove 92 is such a depth that a basal part is slightly seen in the state where aclip 10 is accommodated, and a groove length ofclip accommodating groove 92 is slightly smaller than a width by which aclip 10 is opened in the natural state. Thereby, upon accommodation of aclip 10 in anaccommodating groove 92, since a twin-arm part is slightly closed, stable accommodation is possible. A shape of aguide groove 93 is not particularly limited, but in the present example, by adopting an alloy-shaped groove when seen in a plane surface, atip hook 28 of aholder 24 is easily guided to a generallyU-shaped part 41 of a basal part of a clip. Aguide groove 93 colored with a light emitting paint is preferable in that aguide groove 93 can be recognized even in a dark endoscope chamber. The number ofclip accommodating grooves 92 which are formed into ablock body 91 is 1, 2 or 4 or more in addition to the aforementioned 3. A material for aclip retaining member 90 is not particularly limited, but when a transparent material is used, this is preferable in that weather aclip 10 is accommodated or not can be observed from the outside. Examples of a transparent material include a resin material such as acrylonitrile-butadiene-styrene resin (ABS resin), polyethylene, polystyrene, polycarbonate, and acryl resin. When aclip retaining member 90 is accommodated in a sterilized bag (not shown) in the state where aclip 10 is accommodated in anaccommodating groove 92, this is preferable in that it is not necessary to perform sterilization treatment every operation, and operating property is excellent. - A mounting
equipment 80 is an adapter for attaching aclip holding member 90 to a cylindrical body of anequipment body part 61. A mountingequipment 80 consists of aring part 82 which is mounted on aequipment body part 61, and a plate-likeengaging piece 82 which engages with an engaginggroove 94 of aclip holding member 90 having ajaw part 82 provided above aring part 82. - Then, a method of performing hemostasis using a
clipping equipment 40 will be explained by referring toFIG. 28 toFIG. 31 . InFIG. 28 , description of aflange 213 of a slidingcylinder 211 is omitted. First, aclip holding member 90 is removed from a sterilized bag in the state where aclip 10 is accommodated in anaccommodating groove 92, and is fixed to anequipment body part 61. While a tip part of anexternal casing 21 is grasped by a hand, a tip of aholder 24 is pushed against aguide groove 93 of aclip holding member 90. In this case, since a hand is not directly contacted with aclip 10, there is no fear of pollution. - Then, when first forcing operation is performed by pushing a
handle 51, an operatingmember 22 is forwarded, a tip ofholder 24 provided at a tip of anoperating wire 23 is closed, and abasal part 4 of aclip 10 is held (FIG. 28 ,FIG. 29 ). This operation can be simply operated only by grasping ahandle 51 by one hand, and grasping anouter tube 21 by the other hand. In addition, by simple operation of forcing a tip of aholder 24 into aguide groove 93, aclip 10 can be attached to aholder 24. At a tip side of an operatingmember 22, aring part 29 abutting against a securingring 2 is provided. An external diameter of aring part 29 is approximately the same as an external diameter of a securingring 2, and a securingring 2 can be forwarded by forwarding an operatingmember 22. - In this state, engagement between an
equipment body part 61 and a slidingcylinder 211 is released, and ahandle 51 is pulled towards a basal side. Thereby, an operatingmember 22 is pulled towards a basal side relative to anexternal casing 21, and aclip 10 is transiently accommodated in anexternal casing 21 in the state where a tip thereof is closed (FIG. 30 ). In this state, anexternal casing 21 is passed through an endoscope (not shown), and a whole endoscope is inserted near a bleeding site in a living body. And, while an endoscope is confirmed, anexternal casing 21 is protruded from a tip of an endoscope. Then, when ahandle 51 is pushed into a tip side, since an operatingmember 22 is forwarded relative to anexternal casing 21, aclip 10 is protruded from anexternal casing 21, and a tip becomes in the opened state. Then, aclop 10 having an opened tip is pushed against an objective site. And, when second forcing operation is performed by further pushing ahandle 51, an operatingmember 22 is forwarded to push asecuring ring 2 of a clip towards a tip side. Thereby, a securingring 2 is engaged with a secondconcave part 6 of aclip 10, to clip an objective site of a living body. Since a securingring 2 which has been pushed out by an operatingmember 22 is engaged with a secondconcave part 6, the closed state of a clip is maintained. After aclip 10 is closed, when a hand is released from ahandle 51, ahandle 51 is returned to an original position by a returning mechanism. Thereupon, since an operatingmember 22 is also retreated, aholder 24 is opened, and aclosed clip 10 can be detached from a holder 24 (FIG. 31 ). And, while aclip 10 is dwelled in a body, aholder 24 together with an endoscope is extracted from a body. When a site clipped with aclip 10 is necrotized, aclip 10 is naturally detached, and is excreted from a body. - Then, a variation example of a
clip holding member 90 will be explained by referring toFIG. 32 toFIG. 34 . In aclip holding member 90 a, the same symbol is added to the same component as that of aclip holding member 90, explanation thereof will be omitted, and different points will be mainly explained. That is, in aclip holding member 90 a, a different point from aclip holding member 90 is a point in that the number of general cross grooves is one, a point in that aguide groove 93 a is an inclination which runs straight passing through a center of an accommodating groove and descends towards a center, a depth at a central part of a guide groove is such that the central part is above a securingring 2 in the state where aclip 10 is accommodated, and the holder is hung on a generally U-shaped basal part of the clip, and a point in that mounting is not on an external circumferential surface of anequipment body part 61, but on a separate member from a clipping equipment. Examples of a form of aguide groove 93 include a fan shape in addition to the aforementioned alloy shape and rectangular shape when seen on a plane surface. - Then, a method of removing a
clip 10 accommodated in aclip holding member 90 a will be explained.FIG. 33 is a cross-sectional view ofFIG. 32 , andFIG. 34 is a view showing the state where aholder 24 is closed inFIG. 33 . A tip of aholder 24 is pushed against aguide groove 93 a of aclip holding member 90 a on which aclip 10 is mounted. In this state, by moving an operatingmember 22 to aclip holding member 90 a side, the state where aclip 10 is held by aholder 24 is obtained (FIG. 34 ). Then, aclip 10 is removed from aclip holding member 90 a, and mounting of aclip 10 on a clipping equipment is completed. - According to a
clipping equipment 40 of a third embodiment example, the same operation as that of aclipping equipment 30 of a second embodiment example is performed and, additionally, by simple operation of grasping ahandle 51 by one hand, grasping anexternal casing 21 by the other hand, and forcing a tip of aholder 24 into aguide groove 93, aclip 10 can be attached to aholder 24. For this reason, even an operator who is not familiar with this operation can perform clip mounting operation simply and efficiently. - The clip and the clipping equipment of the present invention are extremely useful as a treating equipment which is used in ligating a bleeding site of a biological tissue, stitching a laceration, and marking in excision of a mucosal tissue with an endoscope.
Claims (22)
1. A clip comprising a self-opening clip body having a clipping part at a tip and equipped with a twin-arm part extending from a basal part, and a securing ring, wherein the self-opening clip body has a first concave part on a clip basal end, and a second concave part between the first concave part and a clip tip part, respectively, and the securing ring is mounted in the first concave part and, at the same time, sliding-moved with an external force from a mounting position in a first concave part to be mounted in the second concave part, which is used as a treating equipment for an endoscope which closes a clipping part of a tip of the clip body.
2. The clip according to claim 1 , which is used for clipping a biological tissue with an endoscope.
3. The clip according to claim 1 , wherein a material for the securing ring is fluorine resin, polyamide or silicone resin.
4. The clip according to claim 1 , wherein a material for the securing ring is stainless steel or titanium alloy.
5. A clipping equipment for a biological tissue comprising an outer tube which can be inserted into a biological cavity, an operating member freely passed through the outer tube, an operating wire freely passed through the operating member, and a self-opening holder which can be opened and closed by the action of the operating member attached to a tip of the opening wire.
6. The clipping equipment for a biological tissue according to claim 5 , further comprising a self-opening clip having a clipping part for clipping a biological tissue which is attached to a tip of the holder in a detachable manner by opening/closing the holder.
7. A clipping equipment for a biological tissue comprising a clip as defined in claim 1 , an external casing which can be inserted into a biological cavity, an operating member freely passed through the outer tube, an operating wire freely passed through the operating member, and a self-opening holder which can be opened and closed by the action of the operating member attached to a tip of the operating wire, wherein the clip is held by the holder.
8. The clipping equipment for a biological tissue according to claim 7 , which further has a handle for controlling the operating member, and has a first forcing mechanism for forwarding the handle and stopping forwarding of the handle, a retaining mechanism for retaining a stoppage position of the handle once, a second forcing mechanism for further forwarding the handle from its stoppage position, and stopping forwarding of the handle, and a returning mechanism for automatically returning the handle to a position before first forcing.
9. The clipping equipment for a biological tissue according to claim 7 , which has a handle axis which is forwarded and retreated by integrating with the hands and is equipped with a first cam part at a tip, and a fitting groove extending on an internal circumferential surface in an axial direction, and is equipped with a cylindrical position retaining means having a cam groove on a circumferential edge of an opening on a tip side, a cylindrical stopping means having a rib which is situated on a tip side of the position retaining means and extends on an internal circumferential surface from a tip side to a midway in an axial direction, a rotation body which is fitted with a first cam part of a handle axis in the position retaining means and in the stopping means, and is moved in an axial direction by integrating with a handle axis, and a spring for imparting spring power against forwarding of a handle.
10. The clipping equipment for a biological tissue according to claim 9 , wherein the rotation body has a substrate having notches on a circumferential edge at an equivalent pitch angle, and a second cam part in which one end of a plate-like feather member extending in an axial direction and provided between the notches at an equivalent pitch angle has a sharp cross section, on the substrate.
11. The clipping equipment for a biological tissue according to claim 8 , wherein the first forcing mechanism is such that a rotation body mounted on a position retaining means is moved from the position retaining means to a stopping means by forwarding a handle axis by handle operation, and is stopped by abutment between the rotation body and a rib end face of the stopping means.
12. The clipping equipment for a biological tissue according to claim 11 , wherein the first forcing mechanism is such that the operating member is forwarded, and a holder is pulled into a cavity of the operating member to close a tip of the holder, making the holder hold the clip.
13. The clipping equipment for a biological tissue according to claim 8 , wherein the retaining mechanism is such that a rotation body is retreated by an elastic force of the spring, and is stopped by engagement between a second cam part of a rotation body and the cam groove of a position retaining means.
14. The clipping equipment for a biological tissue according to claim 8 , wherein the second forcing mechanism is such that a first cam part of the handle axis and a second cam part of a rotation body are fitted, and the notch of a rotation body is fitted with a rib of the stopping means, thereby, a rotation body is forwarded to a tip of a stopping means.
15. The clip equipment for a biological tissue according to claim 14 , wherein the second forcing mechanism is such that the operating member is further forwarded to close a clipping part of a clip.
16. A clipping equipment for a biological tissue according to claim 8 , wherein the returning mechanism is due to elastic action of the spring.
17. The clipping equipment for a biological tissue according to claim 7 , wherein the clipping member is closed so that it is overlaid with a tip of a holder upon holding of a holder, to clip a clip.
18. The clipping equipment for a biological tissue according to claim 7 , wherein the operating member is made of a thermoplastic resin.
19. A clip holder comprising one or two or more of clip accommodating grooves for accommodating a clip consisting of a self-opening clip body having a clipping part at a tip and equipped with a twin-arm part extending from a basal part, and a securing ring which is mounted on a concave part of the basal part and is freely moved towards a tip direction, with its tip being downward and in the sunk state.
20. The clipping equipment for a biological tissue according to claim 7 , further comprising a clip holder having one or two or more of clip accommodating grooves for accommodating the clip with its tip being downward and in the sunk state, and generally cross grooves consisting of guide grooves which run straight through a center of the accommodating groove.
21. The clipping equipment for a biological tissue according to claim 20 , wherein the guide groove runs straight through a center of the accommodating groove, and is an inclination which descends towards the center, and a depth at a central part of the guide groove is such a depth that the holder is hung on a generally U-shaped basal part of the accommodated clip.
22. The clipping equipment for a biological tissue according to claim 20 , wherein the clip holder is provided on an equipment body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/500,884 US8419751B2 (en) | 2003-03-17 | 2009-07-10 | Clip and clipping instrument for biological tissues |
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JP2003-072747 | 2003-03-17 | ||
JP2003072747 | 2003-03-17 | ||
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JP2004061630 | 2004-03-05 | ||
JP2004-061630 | 2004-03-05 | ||
PCT/JP2004/003468 WO2004082488A1 (en) | 2003-03-17 | 2004-03-16 | Clip and clipping instrument for biological tissues |
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PCT/JP2004/003468 A-371-Of-International WO2004082488A1 (en) | 2003-03-17 | 2004-03-16 | Clip and clipping instrument for biological tissues |
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US12/500,884 Division US8419751B2 (en) | 2003-03-17 | 2009-07-10 | Clip and clipping instrument for biological tissues |
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US12/500,884 Expired - Fee Related US8419751B2 (en) | 2003-03-17 | 2009-07-10 | Clip and clipping instrument for biological tissues |
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US10722236B2 (en) | 2017-12-12 | 2020-07-28 | Covidien Lp | Endoscopic reposable surgical clip applier |
US10959737B2 (en) | 2017-12-13 | 2021-03-30 | Covidien Lp | Reposable multi-fire surgical clip applier |
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US11812972B2 (en) | 2018-10-01 | 2023-11-14 | Covidien Lp | Endoscopic surgical clip applier |
US11147566B2 (en) | 2018-10-01 | 2021-10-19 | Covidien Lp | Endoscopic surgical clip applier |
CN109833074A (en) * | 2019-02-20 | 2019-06-04 | 江苏格里特医疗科技有限公司 | A kind of rotatable hemostatic clamp |
US11524398B2 (en) | 2019-03-19 | 2022-12-13 | Covidien Lp | Gear drive mechanisms for surgical instruments |
US11610702B2 (en) * | 2019-12-11 | 2023-03-21 | The Boeing Company | Temporary holder for transferring end of wire between end effectors |
US11779340B2 (en) | 2020-01-02 | 2023-10-10 | Covidien Lp | Ligation clip loading device |
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Also Published As
Publication number | Publication date |
---|---|
EP2522283A3 (en) | 2012-11-28 |
US20090275958A1 (en) | 2009-11-05 |
KR20050110013A (en) | 2005-11-22 |
KR101078544B1 (en) | 2011-11-01 |
US8419751B2 (en) | 2013-04-16 |
JP4502134B2 (en) | 2010-07-14 |
EP2522283A2 (en) | 2012-11-14 |
JPWO2004082488A1 (en) | 2006-06-22 |
EP1604614A1 (en) | 2005-12-14 |
WO2004082488A1 (en) | 2004-09-30 |
EP1604614A4 (en) | 2010-03-10 |
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Owner name: SUMITOMO BAKELITE COMPANY LIMITED, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HARADA, SHINETSU;MASUDA, HARUHIKO;NISHIMURA, MIYUKI;AND OTHERS;REEL/FRAME:017963/0081 Effective date: 20051011 |
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STCB | Information on status: application discontinuation |
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