CA2143825A1 - Endoscopic suturing device - Google Patents
Endoscopic suturing deviceInfo
- Publication number
- CA2143825A1 CA2143825A1 CA002143825A CA2143825A CA2143825A1 CA 2143825 A1 CA2143825 A1 CA 2143825A1 CA 002143825 A CA002143825 A CA 002143825A CA 2143825 A CA2143825 A CA 2143825A CA 2143825 A1 CA2143825 A1 CA 2143825A1
- Authority
- CA
- Canada
- Prior art keywords
- thread
- actuating
- clamping member
- elongate
- suturing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2939—Details of linkages or pivot points
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2939—Details of linkages or pivot points
- A61B2017/294—Connection of actuating rod to jaw, e.g. releasable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2947—Pivots
Abstract
An endoscopic suturing device, comprising an elongate hollow tube (10) one end of which carries a combination of a thread engaging and loop forming member (18) and a thread or needle clamping member (11). An actuating member (12) at the other end of the tube (10) engages an elongate actuating rod (15) extending through the tube and is coupled to the thread or nee-dle clamping member, whereby axial movement of the actuating member against the biasing action of a rail spring (21) causes said actuating rod to actuate said thread or needle clamping member. The device is capable of disassembling for cleaning and sterilisation.
Description
- ~143825 ENDOSCOPIC S~T~RING DE~ICE
This in~ention relates to endosco~ic suturing and in particular a device or instrument for forming knots to tie tissue together in cavities within animal (human) bodies to complete internal surgical procedures.
It has become practice with certain surgical procedures within ca~ities in the h~m~n body to avoid over intrusi~e surgical techniques, in~olving large incisions to gain access to body ca~ities, to now use a surgical technique known as endoscopy where relati~ely small incisions are made through to the body cavity and surgical procedures are carried out u~ing an endoscope being an elongate de~ice or instrument in the nature of a telescope inserted thorough the incision to ~iew the area where surgery is being carried out, whilst a similar elongate de~ice or instrument is used to severe internal body tissue during ~arious types of tissue removal or repair operations. By using such a less intrusive surgical technique involving small incisions patient trauma is kept to a minimum resulting in a lesser term of hos~italisation and kee~ing scaring to a minimum.
~ owever one of the major difficulties with such a surgical technique arises when it is necessary to suture internal body tis~ue by stitching the tissue together usin~
thread like material, which requires the formation of knots within the body cavity as distinct from externally accessible areas where suturing external body tissue is invol~ed.
One presently used technique involves the use of clips or clamp~ which clam~ the body tissue together and which are ap~lied within the body ca~ity using an elongate clip applicator inserted through one of the external incisions whilst the ~iewing the a~plication of the clip with the endoscope through another external incision.
, SUE~S 111 ~JTE SHEET
RÉCEIVE~6 g6 MAY 199~
2I4382~
However, some such cli~8 are not designed to be dissolved over a ~eriod of time whilst the joined body tissue heals and as a result are relatively ex~ensive adding significantly to the cost of the surgical ~rocedure.
One other known intracor~oral suturing technique involves the use of a ~air of instruments one being in the form a pair suture gras~ing force~s and a se~arate knotting device, and involves inserting the suture (thread) through the tissue to be joined u~ing a needle holder and thereafter holding one free end of the thread with the needle holder whilst through a se~arate incision the knotting device is inserted to catch the thread between the needle holder and the tissue whereby by rotating the knotting device through one or more rotations of 180, one or more loops are formed in the thread, whereafter either~
through the same incision by withdrawing the knotting device, or thorough a se~arate incision, the suture gras~ing force~s are inserted to grasp the other end of the thread and draw it through the loop or loops to form a single or multi~le knot.
It is therefore an object of ~resent invention to ~rovide an endosco~ic suturing device which will suture together body tissue in an internal body cavity and which is not subject to the same ~roblems and difficulties as the aforementioned suturing techniques.
In accordance with the present invention there i8 ~rovided an endosco~ic suturing device, com~rising an elongate hollow tube one end of which carries a combination of a thread engaging and loo~ forming member and a thread or needle clam~ing member, and means o~erable at the other end of the tube for actuating the thread or needle clam~ing member, wherein said means for actuating the thread clam~ing member com~rises an actuating member engaging an elongate actuating rod extending through said tube and cou~led to ~aid thread or needle clam~ing member, whereby axial movement of the actuating member causes said actuating rod to actuate ~aid thread or needle clam~ing AI~NDE~D SHE~T
IPEA/AU
- 2143825 RECEIVED ~ MAY19g'~
member.
Such a device enable~ the instrument to com~lete a knotting function in one o~eration and whilst inserted throuqh the uame incision, to gra~ the ~hort end of AMEND~D SH~T
IPEA/AU
thread by the thread clam~ing member on the needle side of the ti~ue to be joined, whereafter rotation of the device through one or more rotation~ in a predetermined direction around the long end of the thread on the needle side of the ti~ue to be joined, being a mirror image of the m~nner in which a knot would otherwise be instrument tied, to form one or more loops about the device. Through another access inci~ion, any grasping instrument or a second endosco~ic suturing device's thread engaging and loop forming member can be manipulated to engage the short end of the thread on the other side of the ti~sue to be joined and draw the thread through the one or more loop~ to form half a knot.
Whereafter rotation of the device through one or more rotation~ in a predetermined direction around the long end of the thread again to form one or more loop~ about the device. Any grasping instrument or the initial thread engaging and loop forming member can then be manipulated to engage the ~hort end of the thread and draw the thread through the one or more loop~ to complete the knot.
Two preferred embodiments of the invention will now be described with reference to the accompanying drawings, in which:
Figure 1 i~ a ~ide elevational view partially sectioned of a first embodiment of the suturing device, Figure 2 i~ a plan view ~artially ~ectioned of the device of Figure 1, Figure 3 i~ a plan view partially ~ectioned of a second embodiment of the ~uturing device in one operational mode thereof, and Figure 4 i8 a plan view partially ~ectioned of the second embodiment of Figure 3 in another operational mode thereof.
The respective drawing~ illustrate only the extreme ends of the devices and with the ends carrying the SU~3STITUTE SHEET
WO94/0~217 PCT/AU93/00434 2, 43~%5 4 thread engaging and loop forming and thread or needle clamping arrangement enlarged for the ~ake of clarity.
The endoscopic suturing device of the embodiment of Figures 1 and 2 of the drawing~ compri~es an elongate hollow tube 10 within one end of which a clamping member in the form a jaw member 11 i~ mounted to pivot about a pivot pin lla between a clo~ed position, and an open position as shown in Figures 1 and 2. The jaw m~mher 11 i8 adapted to be opened and clo~ed by an elongate actuating rod 15, such aR in a bowden cable arrangement, which rod 15 carries a pin 15a which detAchAhly engages within a slot llb in the end of the clamping member on one ~ide of the ~ivot ~in lla with the clamping member having a clamping surface llc which engage~ during clo~ing of the clamping member with a cooperating clamping surface lld on the end of the hollow tube 10. The other end of the elongate actuating rod 15 is connected to an actuating member 12 via a connecting bolt 13 the oppo~ite ends of which bolt pa~a through elongate slots 14 in the wall of a cylindrical housing 16 and which allow axial movement of the actuating member 12. The hou~ing 16 haR a finger gra~ping flange 17 exten~;ng around the circumference thereof and upon axial movement of the actuating member, and a~ a re~ult of axial movement of the elongate actuating rod 15 within the tube 10, the jaw member 11 is caused to o~en.
In order to bias the actuating member 12, and as a conReguence jaw member 11 via the elongate rod lS, to the clo~ed po~ition, a compre~ion coil spring 21 is provided surro~n~;n~ the end of the elongate rod 15 within the houaing 16 and between a stop and gas ~eal 20, freely slidable along the elongate actuating rod 15, and the actuating member 12, whereby upon relea~e of pressure on the actuating member the coil ~pring 21 will act to bia~
the clamping member 11 back to a po~ition whereby a thread 21438~
or needle will be clamped between the clamping surfaces llc and lld.
In this embodiment, the extreme end of the clamping m~mher 11 carries a thread engaging and loop foTm;ng member in the form a spiral hook 18, although the relative disposition of the hook 18 and jaw member 11 may be interchanged in other embodiments, and the ~piral may be in any direction.
In addition, the use of the biasing spring member 21 may be dispensed whereby the surgeon may manipulate opening and closing of the clamping member 11 without the assistance of a bia~ing spring, and such an alternative mechanism may involve the utilisation of an internal or external ratchet mechAn;sm or friction slide.
15` The connecting bolt 13 carries a nut 13a which when loosened and removed allows the bolt 13 to be removed, whereafter the actuating member 12, coil spring 21, gas seal washer 20 and actuating rod 15 can be axially withdrawn from wit_in the hollow tube 10 after disengaging the pin 15a from the slot llb in the end of the clamping member. The com~onents of the device are thus se~arated from each other for cleen;n~ and sterilisation purposes.
In the second ~mhodiment of Figures 3 and 4 of the drawings, the device once again compri~es an elongate hollow tube 10' within one end of which a clamping member in the form of a jaw m~mher 11' is mounted to ~ivot about a pivot pin lla' between a closed position as shown in Figure 3 and an o~en ~osition as shown in Figure 4. The jaw member 11' is adapted to be o~ened and closed by an elongate actuating rod 15', such as a bowden cable arrangement, which rod 15' carries a pin 15a~ which detAchAhly engages within a slot llb' in the end of the clamping member on one side of the pivot pin lla' with the clamping member having a clamping surface llc' which SU~3S 11 l IJTE SHEET
W094/052172 1~3 825 PCT/AU93/00434 engages during closing of the clamping me_ber with a cooperating clam~ing surface lld~ on the end of the hollow tube 10'. The other end of the elongate actuating rod 15' is connected to an actuating me_ber 12~ via a connecting bolt 13' the opposite ends of which bolt pa~ through elongate ~lots 14' in the wall of a cylindrical housing 16' and which allow axial movement of the actuating member 12'.
The houQing 16' ha~ a finger gras~ing flange 17' ext~n~ing around the circumference thereof and u~on axial movement of the actuating me_ber, and as a result axial movement of the elongate actuating rod 15' within the tube 10' the jaw m~mher 11' in this e_bodiment i~ caused to close a~ the pin 15a~ and slot llb~ arrangement is on the side of the pivot pin lla' oppo~ite to that of the e_bodiment of Figure~ 1 and 2.
In order to biaQ the actuating member 12' and a~
a consequence the jaw m~mher 11' via the elongate rod 15 to the open position, a compresaion coil spring 21' i~
provided surro~n~;ng the end of the elongate rod 15~ within the housing 16' and between a stop and gas ~eal 20', freely ~lidable along the elongate actuating rod 15', and the actuating me_ber 12', whereby upon release of pressure on the actuating member the coil s~ring 21' will to bias the clamping m~mher 11~ back to a non-clamping position.
The extreme end of the clamping m~mher 11' carries a thread engaging and loop forming me_ber in the form of a spiral hook 18', although the relative disposition of the hook 18' and the jaw m~mher 11' maybe interchanged in other ~mhodiment~, and the spiral maybe in any direction.
The connecting bolt 13' carries a nut 13a~ which when loosened and removed allows the bolt 13' to be radially removed, whereafter the actuating member 12', coil spring 21', gas seal washer 20~ and actuating rod 15~ can SUB~ 111 ~JTE SHEET
W O 94/05217 ~ 1 ~ 3 8 2 5 P~r/A U93/00434 be axially withdrawn from within the hollow tube 10~ after di~engaging the pin 15a' from the slot llb' in the end of the clam~ing member. The com~onent~ of the device are thu~
once again ~eparated from each other for cleAn; n~ and sterilisation purpo~e~.
In the ~econd embodiment of the invention, the head of the bolt 13~ ha~ formed on its underRide a ~aw tooth configuration S1 which matingly engages with a ~imilar ~aw tooth configuration S2 on the external surface~
of the hou~ing 16' adjacent one of the slot~ 14', whereby when the actuating member 12' ia forced inwardly of the housing the ~aw tooth configuration S1 will ride over the mating configuration S2 until the clamping position of the clamping member 11' i~ achieved at which time engagement of the configuration~ S1 and S2 will occur with the a~sistance of a compre~ion coil ~pring C ~urro~n~;ng the bolt 13' and sandwiched between the nut 13' on the other end of the bolt and exten~; n~ through the adjacent ~lot 14' to a top S
freely ~lidable along the bolt 13' and engaging the side of the actuating m~mher or alternati~ely engaging the bottom of a rece~ co~tA;n;ng and Qurro~n~;ng the ~lot 14'. In order to relea~e the clamping member from the clamping po~ition shown in Figure 3 ~o aR to move to the open ~osition shown in Figure 4, the nut 13a' is depres~ed to axially ~hift the bolt and di~engage the two ~aw tooth configurationn Sl and S2, whereafter the compre~ion coil spring 21' acta to move the actuating member and elongate rod to a ~osition whereby the clamping member returns to its open position.
The ~uturing de~ice~ of the two ~mhodiments of the in~ention are operable to ~erform a surgical suturing procedure a~ deRcribed previou~ly.
Although not ~hown in the drawing~, the elongate tube 10 or 10' may be tapered toward the operating end or SUB~ JTE SHEET
WO94/0~217 PCT/AU93/00434 2~ 25 8 stepped at a point along its length to ~ro~ide a reduced diametre part of its length toward the operating end.
SU~3~ 111 ~JTE SHEET
This in~ention relates to endosco~ic suturing and in particular a device or instrument for forming knots to tie tissue together in cavities within animal (human) bodies to complete internal surgical procedures.
It has become practice with certain surgical procedures within ca~ities in the h~m~n body to avoid over intrusi~e surgical techniques, in~olving large incisions to gain access to body ca~ities, to now use a surgical technique known as endoscopy where relati~ely small incisions are made through to the body cavity and surgical procedures are carried out u~ing an endoscope being an elongate de~ice or instrument in the nature of a telescope inserted thorough the incision to ~iew the area where surgery is being carried out, whilst a similar elongate de~ice or instrument is used to severe internal body tissue during ~arious types of tissue removal or repair operations. By using such a less intrusive surgical technique involving small incisions patient trauma is kept to a minimum resulting in a lesser term of hos~italisation and kee~ing scaring to a minimum.
~ owever one of the major difficulties with such a surgical technique arises when it is necessary to suture internal body tis~ue by stitching the tissue together usin~
thread like material, which requires the formation of knots within the body cavity as distinct from externally accessible areas where suturing external body tissue is invol~ed.
One presently used technique involves the use of clips or clamp~ which clam~ the body tissue together and which are ap~lied within the body ca~ity using an elongate clip applicator inserted through one of the external incisions whilst the ~iewing the a~plication of the clip with the endoscope through another external incision.
, SUE~S 111 ~JTE SHEET
RÉCEIVE~6 g6 MAY 199~
2I4382~
However, some such cli~8 are not designed to be dissolved over a ~eriod of time whilst the joined body tissue heals and as a result are relatively ex~ensive adding significantly to the cost of the surgical ~rocedure.
One other known intracor~oral suturing technique involves the use of a ~air of instruments one being in the form a pair suture gras~ing force~s and a se~arate knotting device, and involves inserting the suture (thread) through the tissue to be joined u~ing a needle holder and thereafter holding one free end of the thread with the needle holder whilst through a se~arate incision the knotting device is inserted to catch the thread between the needle holder and the tissue whereby by rotating the knotting device through one or more rotations of 180, one or more loops are formed in the thread, whereafter either~
through the same incision by withdrawing the knotting device, or thorough a se~arate incision, the suture gras~ing force~s are inserted to grasp the other end of the thread and draw it through the loop or loops to form a single or multi~le knot.
It is therefore an object of ~resent invention to ~rovide an endosco~ic suturing device which will suture together body tissue in an internal body cavity and which is not subject to the same ~roblems and difficulties as the aforementioned suturing techniques.
In accordance with the present invention there i8 ~rovided an endosco~ic suturing device, com~rising an elongate hollow tube one end of which carries a combination of a thread engaging and loo~ forming member and a thread or needle clam~ing member, and means o~erable at the other end of the tube for actuating the thread or needle clam~ing member, wherein said means for actuating the thread clam~ing member com~rises an actuating member engaging an elongate actuating rod extending through said tube and cou~led to ~aid thread or needle clam~ing member, whereby axial movement of the actuating member causes said actuating rod to actuate ~aid thread or needle clam~ing AI~NDE~D SHE~T
IPEA/AU
- 2143825 RECEIVED ~ MAY19g'~
member.
Such a device enable~ the instrument to com~lete a knotting function in one o~eration and whilst inserted throuqh the uame incision, to gra~ the ~hort end of AMEND~D SH~T
IPEA/AU
thread by the thread clam~ing member on the needle side of the ti~ue to be joined, whereafter rotation of the device through one or more rotation~ in a predetermined direction around the long end of the thread on the needle side of the ti~ue to be joined, being a mirror image of the m~nner in which a knot would otherwise be instrument tied, to form one or more loops about the device. Through another access inci~ion, any grasping instrument or a second endosco~ic suturing device's thread engaging and loop forming member can be manipulated to engage the short end of the thread on the other side of the ti~sue to be joined and draw the thread through the one or more loop~ to form half a knot.
Whereafter rotation of the device through one or more rotation~ in a predetermined direction around the long end of the thread again to form one or more loop~ about the device. Any grasping instrument or the initial thread engaging and loop forming member can then be manipulated to engage the ~hort end of the thread and draw the thread through the one or more loop~ to complete the knot.
Two preferred embodiments of the invention will now be described with reference to the accompanying drawings, in which:
Figure 1 i~ a ~ide elevational view partially sectioned of a first embodiment of the suturing device, Figure 2 i~ a plan view ~artially ~ectioned of the device of Figure 1, Figure 3 i~ a plan view partially ~ectioned of a second embodiment of the ~uturing device in one operational mode thereof, and Figure 4 i8 a plan view partially ~ectioned of the second embodiment of Figure 3 in another operational mode thereof.
The respective drawing~ illustrate only the extreme ends of the devices and with the ends carrying the SU~3STITUTE SHEET
WO94/0~217 PCT/AU93/00434 2, 43~%5 4 thread engaging and loop forming and thread or needle clamping arrangement enlarged for the ~ake of clarity.
The endoscopic suturing device of the embodiment of Figures 1 and 2 of the drawing~ compri~es an elongate hollow tube 10 within one end of which a clamping member in the form a jaw member 11 i~ mounted to pivot about a pivot pin lla between a clo~ed position, and an open position as shown in Figures 1 and 2. The jaw m~mher 11 i8 adapted to be opened and clo~ed by an elongate actuating rod 15, such aR in a bowden cable arrangement, which rod 15 carries a pin 15a which detAchAhly engages within a slot llb in the end of the clamping member on one ~ide of the ~ivot ~in lla with the clamping member having a clamping surface llc which engage~ during clo~ing of the clamping member with a cooperating clamping surface lld on the end of the hollow tube 10. The other end of the elongate actuating rod 15 is connected to an actuating member 12 via a connecting bolt 13 the oppo~ite ends of which bolt pa~a through elongate slots 14 in the wall of a cylindrical housing 16 and which allow axial movement of the actuating member 12. The hou~ing 16 haR a finger gra~ping flange 17 exten~;ng around the circumference thereof and upon axial movement of the actuating member, and a~ a re~ult of axial movement of the elongate actuating rod 15 within the tube 10, the jaw member 11 is caused to o~en.
In order to bias the actuating member 12, and as a conReguence jaw member 11 via the elongate rod lS, to the clo~ed po~ition, a compre~ion coil spring 21 is provided surro~n~;n~ the end of the elongate rod 15 within the houaing 16 and between a stop and gas ~eal 20, freely slidable along the elongate actuating rod 15, and the actuating member 12, whereby upon relea~e of pressure on the actuating member the coil ~pring 21 will act to bia~
the clamping member 11 back to a po~ition whereby a thread 21438~
or needle will be clamped between the clamping surfaces llc and lld.
In this embodiment, the extreme end of the clamping m~mher 11 carries a thread engaging and loop foTm;ng member in the form a spiral hook 18, although the relative disposition of the hook 18 and jaw member 11 may be interchanged in other embodiments, and the ~piral may be in any direction.
In addition, the use of the biasing spring member 21 may be dispensed whereby the surgeon may manipulate opening and closing of the clamping member 11 without the assistance of a bia~ing spring, and such an alternative mechanism may involve the utilisation of an internal or external ratchet mechAn;sm or friction slide.
15` The connecting bolt 13 carries a nut 13a which when loosened and removed allows the bolt 13 to be removed, whereafter the actuating member 12, coil spring 21, gas seal washer 20 and actuating rod 15 can be axially withdrawn from wit_in the hollow tube 10 after disengaging the pin 15a from the slot llb in the end of the clamping member. The com~onents of the device are thus se~arated from each other for cleen;n~ and sterilisation purposes.
In the second ~mhodiment of Figures 3 and 4 of the drawings, the device once again compri~es an elongate hollow tube 10' within one end of which a clamping member in the form of a jaw m~mher 11' is mounted to ~ivot about a pivot pin lla' between a closed position as shown in Figure 3 and an o~en ~osition as shown in Figure 4. The jaw member 11' is adapted to be o~ened and closed by an elongate actuating rod 15', such as a bowden cable arrangement, which rod 15' carries a pin 15a~ which detAchAhly engages within a slot llb' in the end of the clamping member on one side of the pivot pin lla' with the clamping member having a clamping surface llc' which SU~3S 11 l IJTE SHEET
W094/052172 1~3 825 PCT/AU93/00434 engages during closing of the clamping me_ber with a cooperating clam~ing surface lld~ on the end of the hollow tube 10'. The other end of the elongate actuating rod 15' is connected to an actuating me_ber 12~ via a connecting bolt 13' the opposite ends of which bolt pa~ through elongate ~lots 14' in the wall of a cylindrical housing 16' and which allow axial movement of the actuating member 12'.
The houQing 16' ha~ a finger gras~ing flange 17' ext~n~ing around the circumference thereof and u~on axial movement of the actuating me_ber, and as a result axial movement of the elongate actuating rod 15' within the tube 10' the jaw m~mher 11' in this e_bodiment i~ caused to close a~ the pin 15a~ and slot llb~ arrangement is on the side of the pivot pin lla' oppo~ite to that of the e_bodiment of Figure~ 1 and 2.
In order to biaQ the actuating member 12' and a~
a consequence the jaw m~mher 11' via the elongate rod 15 to the open position, a compresaion coil spring 21' i~
provided surro~n~;ng the end of the elongate rod 15~ within the housing 16' and between a stop and gas ~eal 20', freely ~lidable along the elongate actuating rod 15', and the actuating me_ber 12', whereby upon release of pressure on the actuating member the coil s~ring 21' will to bias the clamping m~mher 11~ back to a non-clamping position.
The extreme end of the clamping m~mher 11' carries a thread engaging and loop forming me_ber in the form of a spiral hook 18', although the relative disposition of the hook 18' and the jaw m~mher 11' maybe interchanged in other ~mhodiment~, and the spiral maybe in any direction.
The connecting bolt 13' carries a nut 13a~ which when loosened and removed allows the bolt 13' to be radially removed, whereafter the actuating member 12', coil spring 21', gas seal washer 20~ and actuating rod 15~ can SUB~ 111 ~JTE SHEET
W O 94/05217 ~ 1 ~ 3 8 2 5 P~r/A U93/00434 be axially withdrawn from within the hollow tube 10~ after di~engaging the pin 15a' from the slot llb' in the end of the clam~ing member. The com~onent~ of the device are thu~
once again ~eparated from each other for cleAn; n~ and sterilisation purpo~e~.
In the ~econd embodiment of the invention, the head of the bolt 13~ ha~ formed on its underRide a ~aw tooth configuration S1 which matingly engages with a ~imilar ~aw tooth configuration S2 on the external surface~
of the hou~ing 16' adjacent one of the slot~ 14', whereby when the actuating member 12' ia forced inwardly of the housing the ~aw tooth configuration S1 will ride over the mating configuration S2 until the clamping position of the clamping member 11' i~ achieved at which time engagement of the configuration~ S1 and S2 will occur with the a~sistance of a compre~ion coil ~pring C ~urro~n~;ng the bolt 13' and sandwiched between the nut 13' on the other end of the bolt and exten~; n~ through the adjacent ~lot 14' to a top S
freely ~lidable along the bolt 13' and engaging the side of the actuating m~mher or alternati~ely engaging the bottom of a rece~ co~tA;n;ng and Qurro~n~;ng the ~lot 14'. In order to relea~e the clamping member from the clamping po~ition shown in Figure 3 ~o aR to move to the open ~osition shown in Figure 4, the nut 13a' is depres~ed to axially ~hift the bolt and di~engage the two ~aw tooth configurationn Sl and S2, whereafter the compre~ion coil spring 21' acta to move the actuating member and elongate rod to a ~osition whereby the clamping member returns to its open position.
The ~uturing de~ice~ of the two ~mhodiments of the in~ention are operable to ~erform a surgical suturing procedure a~ deRcribed previou~ly.
Although not ~hown in the drawing~, the elongate tube 10 or 10' may be tapered toward the operating end or SUB~ JTE SHEET
WO94/0~217 PCT/AU93/00434 2~ 25 8 stepped at a point along its length to ~ro~ide a reduced diametre part of its length toward the operating end.
SU~3~ 111 ~JTE SHEET
Claims (6)
1. An endoscopic suturing device, comprising an elongate hollow tube one end of which carries a combination of a thread engaging and loop forming member and a thread or needle clamping member, and means operable at the other end of the tube for actuating the thread or needle clamping member, wherein said means for actuating the thread clamping member comprises an actuating member engaging an elongate actuating rod extending through said tube and coupled to said thread or needle clamping member, whereby axial movement of the actuating member causes said actuating rod to actuate said thread or needle clamping member.
2. An endoscopic suturing device as claimed in Claim 1, wherein axial movement of said actuating member and said actuating rod causes said thread or needle clamping member to move to a non-clamping position.
3. An endoscopic suturing device as claimed in Claim 2, wherein a biasing means is provided between the actuating member and the adjacent end of the elongate tube to bias the thread or needle clamping member to a clamping position.
4. An endoscopic suturing device as claimed in Claim 1, wherein axial movement of said actuating member and said actuating rod causes said thread or needle clamping member to move to a clamping position.
5. An endoscopic suturing device as claimed in Claim 4, wherein means are provided to hold said thread or needle clamping member in said clamping position.
6. An endoscopic suturing device as claimed in any one of the preceding claims, wherein the connections between the actuating rod and the clamping member, as well as between the actuating rod and the actuating member, are detachable so that the device can be disassembled to allow cleaning and sterilisation of its various components.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPL4378 | 1992-08-28 | ||
| AUPL437892 | 1992-08-28 | ||
| AUPL7562 | 1993-03-02 | ||
| AUPL756293 | 1993-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2143825A1 true CA2143825A1 (en) | 1994-03-17 |
Family
ID=25644316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002143825A Abandoned CA2143825A1 (en) | 1992-08-28 | 1993-08-26 | Endoscopic suturing device |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5601578A (en) |
| EP (1) | EP0656764B1 (en) |
| JP (1) | JPH08500506A (en) |
| KR (1) | KR100317165B1 (en) |
| CN (1) | CN1084046A (en) |
| AT (1) | ATE221339T1 (en) |
| CA (1) | CA2143825A1 (en) |
| DE (1) | DE69332171T2 (en) |
| WO (1) | WO1994005217A1 (en) |
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| US5906630A (en) * | 1998-06-30 | 1999-05-25 | Boston Scientific Limited | Eccentric surgical forceps |
| KR100293089B1 (en) * | 1999-04-09 | 2001-06-15 | 김응국 | Suture loop knot tying method |
| US7597698B2 (en) * | 1999-08-10 | 2009-10-06 | Maquet Cardiovascular Llc | Apparatus and method for endoscopic encirclement of pulmonary veins for epicardial ablation |
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| DE10060769C2 (en) * | 2000-12-07 | 2003-07-24 | Storz Karl Gmbh & Co Kg | Medical instrument |
| US7867243B2 (en) * | 2001-09-06 | 2011-01-11 | Design Standards Corporation | Tissue grasping and clipping/stapling device |
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| DE10255344A1 (en) * | 2002-11-27 | 2005-06-30 | Siemens Ag | Conveyor system for goods, in particular containers for luggage, and control system for the conveyor system |
| US9597078B2 (en) * | 2003-04-29 | 2017-03-21 | Covidien Lp | Surgical stapling device with dissecting tip |
| US8714429B2 (en) * | 2003-04-29 | 2014-05-06 | Covidien Lp | Dissecting tip for surgical stapler |
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| US7914551B2 (en) * | 2004-07-28 | 2011-03-29 | Ethicon Endo-Surgery, Inc. | Electroactive polymer-based articulation mechanism for multi-fire surgical fastening instrument |
| US8123762B2 (en) | 2004-08-19 | 2012-02-28 | Boston Scientific Scimed, Inc. | Suturing instrument |
| US20080215070A1 (en) * | 2004-12-01 | 2008-09-04 | Philip L Gildenberg | System and Method for Tensioning a Suture |
| EP1845861B1 (en) | 2005-01-21 | 2011-06-22 | Mayo Foundation for Medical Education and Research | Thorascopic heart valve repair apparatus |
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| AU2012261998B2 (en) | 2011-06-01 | 2017-03-02 | Neochord, Inc. | Minimally invasive repair of heart valve leaflets |
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| WO2017059406A1 (en) | 2015-10-01 | 2017-04-06 | Neochord, Inc. | Ringless web for repair of heart valves |
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| DE4133966C1 (en) * | 1991-10-14 | 1993-04-29 | Richard Wolf Gmbh, 7134 Knittlingen, De | |
| US5242458A (en) * | 1991-10-15 | 1993-09-07 | Ethicon, Inc. | Suture needle holder for endoscopic use |
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-
1993
- 1993-08-26 AT AT93918781T patent/ATE221339T1/en not_active IP Right Cessation
- 1993-08-26 EP EP93918781A patent/EP0656764B1/en not_active Expired - Lifetime
- 1993-08-26 US US08/387,946 patent/US5601578A/en not_active Expired - Lifetime
- 1993-08-26 JP JP6506666A patent/JPH08500506A/en active Pending
- 1993-08-26 WO PCT/AU1993/000434 patent/WO1994005217A1/en active IP Right Grant
- 1993-08-26 DE DE69332171T patent/DE69332171T2/en not_active Expired - Lifetime
- 1993-08-26 CA CA002143825A patent/CA2143825A1/en not_active Abandoned
- 1993-08-26 KR KR1019950700798A patent/KR100317165B1/en not_active IP Right Cessation
- 1993-08-28 CN CN93116569A patent/CN1084046A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0656764A4 (en) | 1996-04-10 |
| EP0656764B1 (en) | 2002-07-31 |
| DE69332171T2 (en) | 2002-12-12 |
| CN1084046A (en) | 1994-03-23 |
| ATE221339T1 (en) | 2002-08-15 |
| WO1994005217A1 (en) | 1994-03-17 |
| DE69332171D1 (en) | 2002-09-05 |
| EP0656764A1 (en) | 1995-06-14 |
| KR100317165B1 (en) | 2002-04-24 |
| JPH08500506A (en) | 1996-01-23 |
| US5601578A (en) | 1997-02-11 |
| KR950702804A (en) | 1995-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |