CN101779977B - Nail bin for surgical linear cut stapler - Google Patents
Nail bin for surgical linear cut stapler Download PDFInfo
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- CN101779977B CN101779977B CN2010101137183A CN201010113718A CN101779977B CN 101779977 B CN101779977 B CN 101779977B CN 2010101137183 A CN2010101137183 A CN 2010101137183A CN 201010113718 A CN201010113718 A CN 201010113718A CN 101779977 B CN101779977 B CN 101779977B
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Abstract
The invention discloses a nail bin for a surgical linear cut stapler. A nail beam of a suturing nail is restrained in a nail push groove by a restraining hook of a nail push block. Two side faces of the nail push block are cylindrical surfaces. The nail groove extends from the end face of a shell of the nail bin to a position of the nail push groove of the nail push block, which is arranged in a nail push hole of the shell of the nail bin. Therefore, the loss of suturing nails and the nail push block in the nail bin can be prevented, the deformation of the suturing nails can be prevented, the resistance to the movement of a nail push base of the nail push block in the nail push hole can be reduced, and the processing precision is easily improved. Therefore, the operation is more labor-saving and safer, and the processing is more convenient.
Description
Technical field
The present invention relates to and be used for replacing surgical operation to adopt the nail bin of the surgical linear cut stapler of scalpel and the free-hand cutting and stitching operation of needlework, specially refer to the nail bin of the surgical linear cut stapler that in open surgery, uses, also specially refer to the nail bin of the chamber mirror surgical linear cut stapler that in laparoscopically surgical operation and thoracoscope surgical operation, uses.
Background technology
Various surgical linear cut staplers are used for replacing surgical operation to adopt the operation of scalpel and the free-hand cutting and stitching of needlework, mainly are used to sew up human body alimentary canal organ and respiratory tract organ in surgical operation, can reduce operating time, improve the operation quality.They are normally used for the end end of the new passage of formation such as esophagus in the digestive tract, stomach, duodenum, small intestinal, colon and rectum, the operation of distolateral and side to side anastomosis and close the cutting and stitching operation of excision, also are used to cutting and stitching such as lung and trachea operation in the respiratory tract.They are specially adapted to appear with the organ of operating difficulties and the cutting and stitching of tissue and perform the operation, and also are specially adapted to the cutting and stitching operation in laparoscopic surgery and thoracoscope surgery.
Existing various surgical linear cut stapler has surgical linear cut stapler and the chamber mirror surgical linear cut stapler of introducing in United States Patent (USP) 20060016853,20070045379,20070194082,20080116244,20080169327 and 20090095790.Surgical linear cut stapler and chamber mirror surgical linear cut stapler both can be the linear staplers, also can be the shaped form staplers.When using surgical linear cut stapler, the operation clamp mechanism makes between the nail anvil of Executive Head and the nail bin to reach required grip thickness, so that suture tissue to be cut is clamped between nail anvil and the nail bin.After suture tissue to be cut is clamped, can operate firing lock promotes the ejector pin piece by nail pushing plate and suturing nail is released in the nail bin is penetrated clamped suture tissue to be cut and direct reach suturing nail grooving on the nail anvil, make the U-shaped suturing nail bend to B shape, reach operation purpose with tissue apposition, release the clamped suture tissue to be cut of cutter cutting simultaneously, reach operation purpose the tissue cutting.After finishing the cutting and stitching operation, the operation clamp mechanism is unclamped cutting and stitching tissue, so that withdraw from surgical linear cut stapler.
The ingredient of the Executive Head of surgical linear cut stapler comprises: nail bin and nail anvil.Nail bin is made up of cartridge housing, ejector pin piece and suturing nail.Nail groove, ejector pin hole and push broach groove are arranged in the cartridge housing.Suturing nail takes the shape of the letter U, and is made up of two nail lower limbs, a nail beam and two nail points.One end of nail lower limb is connected with the nail beam respectively, the other end is respectively the nail point.Suturing nail can adopt stainless steel silk, tantalum wire, titanium silk or other to have the tinsel manufacturing of similar performance.Two nail lower limbs of suturing nail are inserted in the nail groove.The nail beam of suturing nail is sitting on the top of ejector pin piece.The ejector pin piece can move in the ejector pin hole so that suturing nail is released in the nail groove.Have on the end face of nail anvil the suturing nail grooving corresponding with the suturing nail position in the nail bin and with nail bin in push broach groove position corresponding cutting groove.The nail groove of nail bin is arranged in the both sides of the push broach groove of nail bin, and the suturing nail grooving respective row of nail anvil is listed in the both sides of the cutting groove of nail anvil.The nail groove of nail bin and the suturing nail grooving of nail anvil can be arranged in two rows, three rows, four rows, five row or six rows respectively according to the needs of surgical operation to cutting and stitching.Nail pushing plate and cutter both can be installed in the nail bin, also can be installed in other parts of surgical linear cut stapler.Nail pushing plate relies on the inclined-plane to promote the ejector pin piece suturing nail is released in the nail groove of nail bin.Stressed variation when releasing suturing nail according to the ejector pin piece, the preceding half section oblique angle on the inclined-plane of existing nail pushing plate is bigger, and the oblique angle of second half section is less.Cutter move in the push broach groove of nail bin.
As introducing in United States Patent (USP) 20070045379 and 20070194082, two nail lower limbs of the U-shaped suturing nail in the nail bin of surgical linear cut stapler and chamber mirror surgical linear cut stapler are inserted in the nail groove, the nail beam of suturing nail is sitting on the top of ejector pin piece, two sides matching in ejector pin piece and ejector pin hole are prismatic, the ejector pin hole connects nail bin, and the ejector pin piece moves in the ejector pin hole so that suturing nail is released in the nail groove.The dissatisfied place of making us of the nail bin of the surgical linear cut stapler of these two kinds of styles is, because two nail lower limbs of U-shaped suturing nail are inserted in the nail groove, the nail beam of suturing nail is sitting on the top of ejector pin piece, make the U-shaped suturing nail not have any constraint towards the direction of nail notch, again because the ejector pin hole connects nail bin, the ejector pin piece can move in the ejector pin hole again, in assembling, check, packing, sterilization, in transportation and the surgical operation use, might lose several in tens suturing nails in the nail bin of surgical linear cut stapler or the ejector pin piece, as long as lose a suturing nail or ejector pin piece, then in this position not with tissue apposition, accident surgeries such as hemorrhage and leakage can take place, therefore in each process, should conscientiously check tens suturing nails and ejector pin piece in the nail bin, can not lose one, in fact only in the assembly and checkout process, can implement, in packing, can't implement in sterilization and the transportation, even in the surgical operation use, find also can't add suitable suturing nail or ejector pin piece.Another of the nail bin of the surgical linear cut stapler of these two kinds of styles makes us dissatisfied place, since the ejector pin piece suturing nail is released in nail bin penetrate clamped suture tissue to be cut in cutter cut clamped suture tissue to be cut, the U-shaped suturing nail is not having any constraint again towards the direction of nail notch, tractive suturing nail during the tissue contracts that therefore is cut open, make the position skew of suturing nail, cause suturing nail can't correctly direct reach suturing nail grooving on the nail anvil, make the U-shaped suturing nail can't correctly bend to B shape, then will not organize correctly and sew up, and can take place hemorrhage and accident surgery such as leakage grade in this position.One the making us dissatisfied place and be again of the nail bin of the surgical linear cut stapler of these two kinds of styles, two sides matching in ejector pin piece and ejector pin hole are prismatic, because the prismatic side in ejector pin piece and ejector pin hole only has 0.3mm to 0.8mm wide, its machining accuracy is difficult to guarantee, therefore, in the ejector pin hole, locate correctly in order to guarantee the ejector pin piece, be processed with the wide long rib in the 0.3mm left and right sides in two sides of ejector pin piece, during assembling long rib is inserted in the nail groove, this structure had both increased difficulty of processing, increased ejector pin piece resistance when mobile in the ejector pin hole again greatly, and nail pushing plate dependence inclined-plane promotion ejector pin piece is released suturing nail in nail bin process, ejector pin piece lateral force, the prismatic side of ejector pin piece is carves shape extruding nail groove, nail groove generation strain has further increased ejector pin piece resistance when mobile in the ejector pin hole.
In order to prevent that tens suturing nails and ejector pin piece in the nail bin from being lost in assembling, check, sterilization, transportation and surgical operation use, the chamber mirror surgical linear cut stapler of introducing in surgical linear cut stapler of introducing in the United States Patent (USP) 7055730 and 20080116244 and the United States Patent (USP) 20090095790, the protective plate that employing is removed in use at the upper surface lid lastblock of nail bin is at the bottom surface dress lastblock liner plate of nail bin.The dissatisfied place one of making us of the nail bin of the surgical linear cut stapler of these two kinds of styles needs to increase part; The 2nd, can only guarantee that the suturing nail in the nail bin and ejector pin piece can not lost in assembling, check, packing, sterilization and transportation, but can not guarantee that the suturing nail in the nail bin is not shifted in these processes, can not guarantee that the suturing nail in the nail bin can not lost in the surgical operation use.
The tractive suturing nail causes the position skew of suturing nail during for the tissue contracts that prevents to be cut open, suturing nail can't correctly be shaped, the surgical linear cut stapler of introducing in the United States Patent (USP) 20060180633 adopts that one of two nail lower limb are long, the U-shaped suturing nail of a weak point, when the ejector pin piece is released suturing nail in nail bin, the nail lower limb that is positioned at the length in the place ahead penetrates earlier and hooks suture tissue to be cut after clamped suture tissue to be cut directes reach suturing nail grooving bending on the nail anvil, and the tractive suturing nail causes the position skew of suturing nail during with the tissue contracts that prevents to be cut open.The dissatisfied place one of making us of the nail bin of the surgical linear cut stapler of this style is that two one of lower limbs of nail are long, the forming quality of the U-shaped suturing nail of a weak point is relatively poor; The 2nd, the U-shaped suturing nail has directivity, brings many difficulties for processing and assembling, in case the anisotropy of assembling, the effect of generation is just in time opposite; The 3rd, long nail lower limb has strengthened the size of U-shaped suturing nail, makes the size of ejector pin piece and nail pushing plate also along with increase, and the dual especially increase of the size of nail bin has reduced the operation scope of application of surgical linear cut stapler.
Therefore the nail bin of surgical linear cut stapler also need improve.
By above-mentioned obviously as can be seen, a large amount of not in specie nail bins of surgical linear cut stapler have been designed now, and the development work of the nail bin of new surgical linear cut stapler is still continuing, so that to further improvement of the nail bin of the surgical linear cut stapler of use do in a large number in the world in every year, make when using more convenient, more accurate, more laborsaving, safer, more convenient during the assembling check, production cost is lower.
Summary of the invention
The objective of the invention is to propose a kind of nail bin of surgical linear cut stapler, the nail beam of realizing suturing nail is constrained in the ejector pin groove by the constraint hook of ejector pin piece, both can prevent that tens suturing nails in the nail bin and ejector pin piece were in assembling, check, sterilization, lost in transportation and the surgical operation use, can prevent again the ejector pin piece with suturing nail in nail bin, release penetrate clamped suture tissue to be cut direct reach the suturing nail deflection is caused the process of the suturing nail grooving on the nail anvil suturing nail be shaped not normal, thereby avoid because of organize correct the stitching that accident surgery hemorrhage and leakage takes place.
Another object of the present invention is to propose a kind of nail bin of surgical linear cut stapler, two sides of realizing the ejector pin piece are the face of cylinder, the nail groove extends to the ejector pin groove of the ejector pin piece in the ejector pin hole that is installed in cartridge housing from the end face of cartridge housing, both can prevent further that tens suturing nails and ejector pin piece in the nail bin from being lost in assembling, check, sterilization, transportation and surgical operation use, the ejector pin seat that can reduce the ejector pin piece again is the resistance when mobile in the ejector pin hole, and improves machining accuracy easily.
At present, the nail bin of known surgical linear cut stapler is made up of cartridge housing, ejector pin piece and suturing nail.Nail groove, ejector pin hole and push broach groove are arranged in the cartridge housing.Suturing nail takes the shape of the letter U, and is made up of two nail lower limbs, a nail beam and two nail points.One end of two nail lower limbs of suturing nail is connected with the nail beam respectively, the other end is respectively the nail point.Two nail lower limbs of suturing nail are inserted in the nail groove.The nail beam of suturing nail is sitting on the top of ejector pin piece.The ejector pin piece can be released suturing nail when mobile in the ejector pin hole in the nail groove of nail bin.The nail groove of nail bin is arranged in the both sides of the push broach groove of nail bin.
Task of the present invention is achieved through the following technical solutions:
Ejector pin piece in the nail bin of surgical linear cut stapler of the present invention is made up of ejector pin groove and ejector pin seat.On the top of the ejector pin groove of ejector pin piece the constraint hook is arranged.The nail beam of suturing nail is constrained in the ejector pin groove by the constraint hook of ejector pin piece.The ejector pin seat of ejector pin piece is released suturing nail by the ejector pin groove of ejector pin piece when mobile in the ejector pin hole in the nail groove of nail bin.Constraint hook on the ejector pin groove of ejector pin piece can be formed by the one-sided top of the ejector pin groove of the U-shaped that is inclination, also can be the projection on the one-sided top of ejector pin groove.Constraint hook portion on the ejector pin groove of ejector pin piece stretches in the approach that suturing nail moves along the nail groove in the nail bin.Two sides of ejector pin piece can be the face of cylinder.The face of cylinder that two sides in ejector pin hole match for the side with two faces of cylinder of ejector pin piece.Both can unify by a base that is clipped between the ejector pin piece by two ejector pin pieces, also can unify by two bases that are clipped in respectively between the ejector pin piece by three ejector pin pieces.
Nail groove in the nail bin of surgical linear cut stapler of the present invention extends to the ejector pin groove of the ejector pin piece in the ejector pin hole that is installed in cartridge housing from the upper surface in the ejector pin hole of cartridge housing.
Surgical linear cut stapler of the present invention both can be installed nail pushing plate and cutter in nail bin, also nail pushing plate and cutter can be installed in other parts of surgical linear cut stapler.Nail pushing plate relies on the inclined-plane to promote the ejector pin piece and suturing nail can be released in the nail groove of nail bin.The nail groove of nail bin can be arranged in two rows, three rows, four rows, five row or six rows according to the needs of surgical operation to cutting and stitching.Cutter can move in the push broach groove.
Specific implementation method and description of drawings thereof
Use way of example below, state the most preferred embodiment of the nail bin of surgical linear cut stapler of the present invention in conjunction with the accompanying drawings.Scope of the present invention will be pointed out in the claims.Will be appreciated that some or all accompanying drawing all is for the explanation sketch of most preferred embodiment of the present invention is described, and the full-size(d) of part shown in not depicting.With reference to being described in detail of most preferred embodiment, understand with will be more readily apparent from reach the present invention above-mentioned with other the purpose and the practical ways of advantage.
Surgical linear cut stapler of the present invention both can be installed nail pushing plate and cutter in nail bin, also nail pushing plate and cutter can be installed in other parts of surgical linear cut stapler.Nail pushing plate relies on the inclined-plane to promote the ejector pin piece and suturing nail can be released in the nail groove of nail bin.Cutter can move in the push broach groove.Figure and explanation thereof for outstanding nail bin do not describe in detail surgical linear cut stapler, nail anvil, nail pushing plate and cutter in the accompanying drawings.About structure, installation, purposes and the course of action of various surgical linear cut staplers, nail anvil, nail pushing plate and cutter can be with reference to the United States Patent (USP)s of quoting in this description.
Fig. 1 is the stereoscopic figure of nail bin of the surgical linear cut stapler of the expression embodiment of the invention;
Fig. 2 is that the nail bin of surgical linear cut stapler of presentation graphs 1 is from the vertical view of upper surface direction;
Fig. 3 is the B-B cutaway view of nail bin of the surgical linear cut stapler of presentation graphs 2;
Fig. 4 is the C partial enlarged view of nail bin of the surgical linear cut stapler of presentation graphs 2;
Fig. 5 is the D partial enlarged view of nail bin of the surgical linear cut stapler of presentation graphs 3;
Fig. 6 is the amplification stereogram that the nail beam of the U-shaped suturing nail after the nail bin of the surgical linear cut stapler of presentation graphs 2 is removed is sitting on the top of ejector pin piece, the nail pushing plate preparation promotes the ejector pin piece;
Fig. 7 is the amplification front elevation of the ejector pin piece in the nail bin of surgical linear cut stapler of presentation graphs 2;
Fig. 8 is the enlarged side view of the ejector pin piece of presentation graphs 7;
Fig. 9 after the nail pushing plate in the nail bin of surgical linear cut stapler of presentation graphs 2 promotes the ejector pin piece suturing nail is released the suturing nail grooving that directes reach on the nail anvil in the nail bin, makes the U-shaped suturing nail be bent to the stereoscopic figure (not showing the suturing nail grooving on nail anvil and the nail anvil among the figure) of B shape;
Figure 10 after the nail pushing plate after the nail bin of the surgical linear cut stapler of presentation graphs 9 is removed promotes the ejector pin piece suturing nail is released the suturing nail grooving that directes reach on the nail anvil in the nail bin, makes the U-shaped suturing nail be bent to the amplification stereogram (not showing the suturing nail grooving on nail anvil and the nail anvil among the figure) of B shape;
Figure 11 is the amplification stereogram of the another kind of ejector pin piece in the nail bin of surgical linear cut stapler of the expression embodiment of the invention.
Below in conjunction with Fig. 1 to Figure 10 each parts of the nail bin of the surgical linear cut stapler of the embodiment of the invention are described, each parts and rigging position thereof, course of action and effect are described.
The nail bin 1 of surgical linear cut stapler is made up of cartridge housing 2, ejector pin piece 3 and suturing nail 4.Nail groove 5, ejector pin hole 6 and push broach groove 7 are arranged in the cartridge housing 2.Suturing nail 4 takes the shape of the letter U, and follows closely lower limbs 8 and 9, nail beams 10 and two nail points 11 and 12 by two and forms.Nail lower limb 8 is connected with nail beam 10 respectively with an end of 9, the other end is respectively nail sharp 11 and 12.Two nail lower limbs 8 and 9 of suturing nail 4 are inserted in the nail groove 5.The nail beam 10 of suturing nail 4 is sitting on the top 13 of ejector pin piece 3.Nail pushing plate 25 relies on inclined-planes 26 to promote ejector pin pieces 3 can be with suturing nail 4 release in the nail groove 5 when mobile ejector pin hole 6 in.The nail groove 5 of nail bin 1 is arranged in each two row of both sides of the push broach groove 7 of nail bin 1.
Figure 11 is the another kind of ejector pin piece in the nail bin of surgical linear cut stapler of the embodiment of the invention.Ejector pin piece 30 is made up of ejector pin groove 31 and ejector pin seat 32.Constraint hook 33 is arranged on the top of the ejector pin groove 31 of ejector pin piece 30.The nail beam 10 of suturing nail 4 is constrained in the ejector pin groove 31 by the constraint hook 33 of ejector pin piece 30.Constraint hook 33 on the ejector pin groove 31 of ejector pin piece 30 is the projection 34 on ejector pin groove 31 tops.Two sides 35 of ejector pin piece 30 and 36 are the face of cylinder.Three ejector pin pieces 37,38 and 39 are by two bases 40 and the 41 ejector pin pieces 30 that unify that are clipped in respectively between ejector pin piece 37,38 and 39.The ejector pin piece 30 of Fig. 9 is used to be installed in the both sides of push broach groove respectively to be arranged in the nail bin (not shown) of three nail-arranging slots, and that describes among other each parts and rigging position, course of action and effect and Fig. 1 to Fig. 8 is similar.
According to above-mentioned detailed introduction as can be known, the nail bin of surgical linear cut stapler of the present invention has following technique effect:
The constraint hook that the nail beam of the U-shaped suturing nail in the nail bin of surgical linear cut stapler of the present invention is partly stretched into the ejector pin piece in the approach that suturing nail moves along the nail groove in the cartridge housing constrains in the ejector pin groove, two of suturing nail nail lower limbs are constrained on again in the nail groove of cartridge housing, make suturing nail in the mobile constraint that is subjected to the ejector pin piece towards the direction of the upper surface of the cartridge housing of nail notch.Again because the nail groove in the nail bin extends to the ejector pin groove of the ejector pin piece in the ejector pin hole that is installed in cartridge housing from the upper surface in the ejector pin hole of cartridge housing, make suturing nail and ejector pin piece in rightabout constraint of moving the nail groove that is subjected to cartridge housing towards the upper surface of the cartridge housing of nail notch.Therefore, suturing nail and ejector pin piece are only moving the constraint that is not subjected to cartridge housing towards the direction of the upper surface of the cartridge housing of nail notch common.Because the volume of ejector pin piece is bigger, ejector pin piece and ejector pin hole shape are complicated, the ejector pin piece is far away again from the distance of the upper surface of cartridge housing, the resistance that makes the ejector pin piece be subjected to when mobile in the ejector pin hole is bigger, when no external force acts directly on the ejector pin piece, quality is difficult to tractive ejector pin piece much smaller than the suturing nail of ejector pin piece and breaks away from cartridge housing together, thereby can prevent that tens suturing nails and ejector pin piece in the nail bin from being lost in assembling, check, sterilization, transportation and surgical operation use.On the other hand, because suturing nail is in the mobile constraint that is subjected to the ejector pin piece of direction towards the upper surface of the cartridge housing of nail notch, have only when nail pushing plate promotes the ejector pin piece suturing nail is released the constraint that breaks away from the nail groove of cartridge housing until two nail lower limbs of suturing nail in nail bin, suturing nail could break away from the constraint of ejector pin piece, at this moment, the nail lower limb of suturing nail has penetrated clamped suture tissue to be cut, hook suture tissue to be cut after directing reach the suturing nail grooving bending on the nail anvil, penetrate clamped suture tissue to be cut and direct reach the process of the suturing nail grooving on the nail anvil thereby can suturing nail be released in nail bin at the ejector pin piece, the suturing nail that tractive suturing nail deflection is caused during the tissue contracts that prevents to be cut open is shaped not normal, avoids because of organize correct the stitching that accident surgery hemorrhage and leakage takes place.
Two sides of the ejector pin piece in the nail bin of surgical linear cut stapler of the present invention are the face of cylinder, the face of cylinder that two sides in ejector pin hole match for the side with two faces of cylinder of ejector pin piece, the nail groove extends to the ejector pin groove of the ejector pin piece in the ejector pin hole that is installed in cartridge housing from the end face of cartridge housing.Because two sides in ejector pin piece and ejector pin hole are the face of cylinder, can adopt general cutting tool to be processed into easily and have the very high-precision face of cylinder, can guarantee that the ejector pin piece locatees correctly in the ejector pin hole, need not add section chief's rib in two sides of ejector pin piece, need not leave the nail groove in the position of correspondence yet, therefore, this structure had both reduced difficulty of processing, had significantly reduced ejector pin piece resistance when mobile in the ejector pin hole again.Nail pushing plate dependence inclined-plane promotion ejector pin piece is released suturing nail in nail bin preceding half section process, though ejector pin piece lateral force is bigger, but groove is not followed closely in the position in correspondence, the cylindrical sides of ejector pin piece is not expressed to the nail groove, strain can not take place in the nail groove, and ejector pin piece this moment resistance when mobile in the ejector pin hole is less.Nail pushing plate dependence inclined-plane promotion ejector pin piece is released suturing nail in nail bin second half section process, this moment, ejector pin piece lateral force was very little, though the nail groove is arranged in the position of correspondence, the power of the cylindrical sides extruding nail groove of ejector pin piece is very little, tangible strain can not take place in the nail groove yet, and ejector pin piece this moment resistance when mobile in the ejector pin hole is also less.
Compare with the nail bin of existing various surgical linear cut staplers, the nail bin of surgical linear cut stapler of the present invention is more convenient in use, more accurate, more laborsaving, safer, and more convenient during the assembling check, production cost is lower.
So as can be seen, the above-mentioned target of stating comprises by front those shown targets of explanation having been reached effectively.Described here only is the typical best form of implementation of the present patent application, can do some to said structure and change also without prejudice to the spirit and scope of the present invention.The present invention does not limit to or is placed restrictions on the detail of being stated in here, is conspicuous any improvement or remodeling and should keep affiliated field secondary technology personnel.
Claims (8)
1. the nail bin of a surgical linear cut stapler, its ingredient comprises: nail bin is by cartridge housing, ejector pin piece and suturing nail are formed, the nail groove is arranged in the above-mentioned cartridge housing, ejector pin hole and push broach groove, above-mentioned suturing nail takes the shape of the letter U, suturing nail is by two nail lower limbs, a nail beam and two nail points are formed, one end of above-mentioned nail lower limb is connected with the nail beam respectively, the other end is respectively the nail point, two nail lower limbs of suturing nail are inserted in the above-mentioned nail groove, the nail beam of suturing nail is sitting on the top of above-mentioned ejector pin piece, the ejector pin piece can be released suturing nail when mobile in above-mentioned ejector pin hole in the nail groove of above-mentioned nail bin, the nail groove of nail bin is arranged in the both sides of the push broach groove of nail bin;
It is characterized in that: the ejector pin piece in the above-mentioned nail bin is made up of ejector pin groove and ejector pin seat, on the top of the ejector pin groove of above-mentioned ejector pin piece the constraint hook is arranged, the nail beam of above-mentioned suturing nail is constrained in the ejector pin groove by the constraint hook of above-mentioned ejector pin piece, and the ejector pin seat of above-mentioned ejector pin piece will be released in the nail groove of suturing nail in the above-mentioned nail bin by the ejector pin groove when mobile in above-mentioned ejector pin hole.
2. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, the constraint hook on the ejector pin groove of above-mentioned ejector pin piece is formed by the one-sided top of the ejector pin groove of the U-shaped that is inclination.
3. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, the constraint hook on the ejector pin groove of above-mentioned ejector pin piece is formed by the projection on the one-sided top of ejector pin groove.
4. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, the constraint hook portion on the ejector pin groove of above-mentioned ejector pin piece stretches in the approach that above-mentioned suturing nail moves along the nail groove in the above-mentioned nail bin.
5. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, above-mentioned nail groove extends to the ejector pin groove of the ejector pin piece in the ejector pin hole that is installed in above-mentioned cartridge housing from the upper surface in the ejector pin hole of above-mentioned cartridge housing.
6. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, two sides of above-mentioned ejector pin piece are the face of cylinder, the face of cylinder that two sides in above-mentioned ejector pin hole match for the side with two faces of cylinder of ejector pin piece.
7. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, in the above-mentioned nail bin nail pushing plate is installed, and above-mentioned nail pushing plate relies on the inclined-plane to promote above-mentioned ejector pin piece above-mentioned suturing nail is released in the nail groove of above-mentioned nail bin.
8. the nail bin of surgical linear cut stapler according to claim 1 is characterized in that, in the above-mentioned nail bin cutter is installed, and above-mentioned cutter can move in the push broach groove of above-mentioned nail bin.
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| CN2010101137183A CN101779977B (en) | 2010-02-25 | 2010-02-25 | Nail bin for surgical linear cut stapler |
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| CN2010101137183A CN101779977B (en) | 2010-02-25 | 2010-02-25 | Nail bin for surgical linear cut stapler |
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| CN101779977A CN101779977A (en) | 2010-07-21 |
| CN101779977B true CN101779977B (en) | 2011-12-14 |
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| US11849945B2 (en) | 2021-03-24 | 2023-12-26 | Cilag Gmbh International | Rotary-driven surgical stapling assembly comprising eccentrically driven firing member |
| US11826047B2 (en) | 2021-05-28 | 2023-11-28 | Cilag Gmbh International | Stapling instrument comprising jaw mounts |
| US11957337B2 (en) | 2021-10-18 | 2024-04-16 | Cilag Gmbh International | Surgical stapling assembly with offset ramped drive surfaces |
| US11877745B2 (en) | 2021-10-18 | 2024-01-23 | Cilag Gmbh International | Surgical stapling assembly having longitudinally-repeating staple leg clusters |
| US11963682B2 (en) | 2022-05-17 | 2024-04-23 | Cilag Gmbh International | Surgical staples comprising hardness variations for improved fastening of tissue |
| US11963680B2 (en) | 2022-10-19 | 2024-04-23 | Cilag Gmbh International | Cartridge body design with force reduction based on firing completion |
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| Publication number | Publication date |
|---|---|
| CN101779977A (en) | 2010-07-21 |
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