CN103190938A - Staple cartridge assembly of surgical linear cutting anastomat - Google Patents
Staple cartridge assembly of surgical linear cutting anastomat Download PDFInfo
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- CN103190938A CN103190938A CN2012100023555A CN201210002355A CN103190938A CN 103190938 A CN103190938 A CN 103190938A CN 2012100023555 A CN2012100023555 A CN 2012100023555A CN 201210002355 A CN201210002355 A CN 201210002355A CN 103190938 A CN103190938 A CN 103190938A
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- nail bin
- ejector pin
- frame
- push rod
- nail
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
Abstract
A staple cartridge assembly of a surgical linear cutting anastomat can realize the technical effect that a U-shaped fork is arranged at a far-end of a push rod in the staple cartridge assembly, a U-shaped groove is formed in a slant wedge of a push nail, the longitudinal length of the U-shaped groove in the slant wedge of the push nail is larger than that of the U-shaped fork at the far-end of the push rod, an elastic lug is arranged on the side surface of a staple cartridge cover, a waist-shaped positioning hole is formed in a staple cartridge frame, an elastic hook is arranged at the bottom of the staple cartridge frame, and when the end of the staple cartridge is arranged in the staple cartridge frame, or when the staple cartridge assembly, or when a staple anvil is not closely clamped by a clamping hook, or after a percussion mechanism has acted, the percussion mechanism can be stopped, so that the use of the surgical linear cutting anastomat can be more safe; a key-hole-shaped lug is formed at the middle part of the slant wedge of the push nail in the staple cartridge assembly, a coving plate is arranged on the surface of the key-hole-shaped lug of the slant wedge of the push nail, an inclined plane is arranged at the bottom of the coving plate, and a key-hole-shaped hole is formed on a cutter can be realized, so that the technical effect that the cutter is small in shape and simple can be realized; and accordingly, a more harder material can be used for manufacturing a more sharp cutter used on the surgical linear cutting anastomat.
Description
Technical field
The present invention relates to the nail bin groupware in the various surgical linear Endo-GIAs.
Background technology
Various surgical linear Endo-GIAs are used to replace adopt in the surgical operation the free-hand identical operation of needlework, be widely used in operations such as the end end of human body alimentary canal organ, respiratory tract organ and apparatus urogenitalis official rank organ and tissue, distolateral and side to side anastomosis, form the operation of organ passage and the operation of close incisions, be specially adapted to appear and the organ of operating difficulties and the anastomosis operation of tissue, can reduce operating time, improve the operation quality.
As introducing in United States Patent (USP) publicity 20080116244 and 20090308909: known various surgical linear Endo-GIAs, formed by nail bin groupware, nail-anvil assembly and clamp hook.Nail bin is arranged in the nail bin groupware, the nail bin frame of nail bin is installed and is installed in the interior firing lock of nail bin frame.It is linear that nail bin is, both can be rectilinear, also can be curved.Ejector pin piece and anastomosis staple are installed in nail bin.A plurality of anastomosis staples are staggered in nail bin more than two rows (comprising two rows).On the nail bin frame briquetting is arranged.Firing lock is tiltedly carved with cutter by push button, slide block, push rod, ejector pin and is formed, and wherein cutter can be according to using needs to install.Nail anvil and nail anvil frame are arranged in the nail-anvil assembly.Nail anvil can be made one with the nail anvil frame.It is linear that nail anvil is, both can be rectilinear, also can be curved.Be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in the nail bin on the surface of nail anvil.A plurality of anastomosis staple groovings are staggered to more than two rows (comprising two rows) on the surface of nail anvil.Middle part projection and nearside projection are arranged on the nail anvil frame.Clamp hook and nail bin frame are pivotally connected.After nail bin groupware and nail-anvil assembly close up mutually, clamp hook is rotated around nail bin frame pivot, make clamp hook hook the middle part projection on the nail anvil frame, the briquetting that drives on the nail bin frame is pressed on the nearside projection of nail anvil frame, make the clamped hook of nail bin groupware and nail-anvil assembly clamp, will wait to coincide clamp tissue between nail anvil and nail bin.When the push button promotion slide block of firing lock moves forward in the nail bin frame, slide block promotes push rod and moves forward in the nail bin frame, push rod promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted each ejector pin piece more successively anastomosis staple is released in nail bin.Anastomosis staple in nail bin takes the shape of the letter U.When the ejector pin piece is released anastomosis staple in nail bin, the nail point of the anastomosis staple of U-shaped is pressed on the grooving of nail anvil, make two nail lower limbs of the anastomosis staple of U-shaped bend to the anastomosis staple of B shape along grooving, reach the operation purpose of will tissue coincideing.Simultaneously, the cutter tissue that will be coincide or the tissue place that coincide the anastomosis staple that is bent to B shape cuts.
In order to ensure safe handling surgical linear Endo-GIA, in the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps or when firing lock, moved back or released in the nail bin but during the nail bin that more do not renew as yet, the nail bin groupware of surgical linear Endo-GIA should possess the technique effect that the prevention firing lock moves when anastomosis staple.Make one as push rod and cutter in the nail bin groupware of the surgical linear Endo-GIA introduced in the United States Patent (USP) publicity 20090308909, extend to the nail bin place from push button and slide block always, be elongated thin slice, in the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps, after spring leaf on the nail bin frame will be made the push rod of one and cutter and raise, push rod and the cutter of making one are stuck on the block of nail bin frame, to stop the firing lock action.The dissatisfied place of making us of the firing lock of the surgical linear Endo-GIA of this style is: the cutter that are on the elongated laminar push rod need punch process, can't adopt the sharp cutter of hard material manufacture, and, do not possess when firing lock and moved that back or anastomosis staple have been released in the nail bin but the technique effect that stops firing lock to move again during the nail bin that more do not renew as yet.Be installed in the cutter cover at nail bin end face place as the cutter in the nail bin groupware of the surgical linear Endo-GIA introduced in the United States Patent (USP) publicity 20080116244; In the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps, after the spring leaf on the nail bin frame is raised push rod, push rod is stuck on the block of nail bin frame, to stop the firing lock action; When anastomosis staple has been released in the nail bin but during the nail bin that more do not renew as yet, the cutter cover holds up to stop the clamped hook clamping of nail bin groupware and nail-anvil assembly.The dissatisfied place of making us of the firing lock of the surgical linear Endo-GIA of this style is: the structure that cutter are installed in the cutter cover at nail bin end face place is complicated, and, do not possess the technique effect that after firing lock moves, stops firing lock to move again yet.Therefore the nail bin groupware of surgical linear Endo-GIA also need improve.
By above-mentioned obviously as can be seen, a large amount of not in specie surgical linear Endo-GIAs have been designed now, and the development work of the nail bin groupware of new surgical linear Endo-GIA is still continuing, in order to the surgical linear Endo-GIA that uses in a large number in the world every year is done further to improve, reach more secure when used, labour-saving surgical effect more.
Summary of the invention
The objective of the invention is to propose a kind of nail bin groupware of surgical linear Endo-GIA, the far-end of realizing the push rod in the nail bin groupware has the U-shaped fork, ejector pin has tiltedly been carved U-lag, the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, the flexible projection in the side of nail bin cover has the flexible hook in locating hole, bottom that is waist shape on the nail bin frame; Thereby in the time of in nail bin is installed in the nail bin frame, elastic projection on the nail bin cover springs in the locating hole on the nail bin frame, lengthwise position between constraint nail bin and the nail bin frame, the ejector pin that the elastic hook of nail bin frame bottom withstands in the nail bin is tiltedly carved, make the elastic projection on the nail bin cover spring into the top of the waist shape locating hole on the nail bin frame, the bottom of nail bin is separated with the nail bin frame, and the elastic hook of nail bin frame bottom blocks the U-shaped fork of push rod, stops that push rod moves forward in the nail bin frame; When the clamped hook of nail bin groupware and nail-anvil assembly clamps, elastic projection on the nail bin cover moves into the bottom of the waist shape locating hole on the nail bin frame, the bottom of nail bin is crushed on the nail bin frame, ejector pin in the nail bin is tiltedly carved the elastic hook of nail bin frame bottom is depressed, and makes push rod can promote ejector pin and tiltedly carves in the nail bin frame and move forward; When after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the groove of the bottom that the elastic hook of bottom of nail bin frame can be by the nail bin cover spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame; When reaching in nail bin is not installed in the nail bin frame or the technique effect that the prevention firing lock moves when the not clamped hook of nail bin groupware and nail-anvil assembly clamps or when firing lock moves after, make when the surgical linear Endo-GIA is used in surgical operation safer.
Another object of the present invention is to propose a kind of nail bin groupware of surgical linear Endo-GIA, realize that there is the projection that is keyhole at the middle part that the ejector pin in the nail bin groupware is tiltedly carved, surface at the projection of the keyhole at the middle part that ejector pin is tiltedly carved has the bottom of cover plate, cover plate that the inclined-plane is arranged, and the hole that is keyhole is arranged on the cutter; Thereby reach after the inclined-plane of cover plate on surface of projection that the aperture strain of the keyhole on the cutter is crossed the keyhole at the middle part that ejector pin tiltedly carves springs on the projection of keyhole at the middle part that ejector pin tiltedly carves, cutter are fixed on the technique effect that ejector pin is tiltedly carved.Because the cutter shape is little and simple, make and can use the sharper cutter of harder material manufacture on the surgical linear Endo-GIA, more laborsaving when in surgical operation, being used.
At present, known surgical linear Endo-GIA is made up of nail bin groupware, nail-anvil assembly and clamp hook.
Nail bin is arranged in the nail bin groupware, the nail bin frame of nail bin is installed and is installed in the interior firing lock of nail bin frame.It is linear that nail bin is, both can be rectilinear, also can be curved.Ejector pin piece and anastomosis staple are installed in nail bin.A plurality of anastomosis staples are staggered in nail bin more than two rows (comprising two rows).On the nail bin frame briquetting is arranged.Firing lock is tiltedly carved with cutter by push button, slide block, push rod, ejector pin and is formed.
Nail anvil and nail anvil frame are arranged in the nail-anvil assembly.Nail anvil can be made one with the nail anvil frame.It is linear that nail anvil is, both can be rectilinear, also can be curved.Be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in the nail bin on the surface of nail anvil.A plurality of anastomosis staple groovings are staggered to more than two rows (comprising two rows) on the surface of nail anvil.Middle part projection and nearside projection are arranged on the nail anvil frame.
Pivot hole and hook are arranged on the clamp hook.The pivot hole of clamp hook and nail bin frame are pivotally connected.
After nail bin groupware and nail-anvil assembly closed up mutually, clamp hook rotated, hooks the middle part projection on the nail anvil frame around nail bin frame pivot, and the briquetting that drives on the nail bin frame is pressed on the nearside projection of nail anvil frame, made the clamped hook clamping of nail bin groupware and nail-anvil assembly.When push button promotion slide block moves forward in the nail bin frame, slide block promotes push rod and moves forward in the nail bin frame, push rod promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted each ejector pin piece more successively anastomosis staple is released in nail bin.
Task of the present invention is achieved through the following technical solutions:
The far-end of the push rod in the nail bin groupware of surgical linear Endo-GIA of the present invention has the U-shaped fork, and ejector pin has tiltedly been carved U-lag.The longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod.The flexible hook in the bottom of nail bin frame.In the time of in nail bin is not installed in the nail bin frame, the elastic hook of nail bin frame bottom blocks the U-shaped fork of push rod, stops that push rod moves forward in the nail bin frame.In the time of in nail bin is installed in the nail bin frame, in the U-lag that the U-shaped of push rod fork insertion ejector pin is tiltedly carved.When the ejector pin in the nail bin is tiltedly carved when the elastic hook of nail bin frame bottom depressed, push rod can promote ejector pin and tiltedly carve in the nail bin frame and move forward.After after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the elastic hook of bottom of nail bin frame can spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
The bottom of the nail bin in the nail bin groupware of surgical linear Endo-GIA of the present invention can be equipped with the nail bin cover.Groove is arranged at the bottom of nail bin cover.When after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the groove of the bottom that the elastic hook of bottom of nail bin frame can be by the nail bin cover spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
The side of nail bin cover can flexible projection.On the nail bin frame locating hole can be arranged.In the time of in nail bin is installed in the nail bin frame, the elastic projection on the nail bin cover springs in the locating hole on the nail bin frame, the lengthwise position between constraint nail bin and the nail bin frame.
Locating hole on the nail bin frame can be waist shape.In the time of in nail bin is installed in the nail bin frame, the ejector pin that the elastic hook of nail bin frame bottom withstands in the nail bin is tiltedly carved, make the elastic projection on the nail bin cover spring into the top of the waist shape locating hole on the nail bin frame, the bottom of nail bin is separated with the nail bin frame, the elastic hook of nail bin frame bottom blocks the U-shaped fork of push rod, stops that push rod moves forward in the nail bin frame.When the clamped hook of nail bin groupware and nail-anvil assembly clamps, elastic projection on the nail bin cover moves into the bottom of the waist shape locating hole on the nail bin frame, the bottom of nail bin is crushed on the nail bin frame, thereby the ejector pin in the nail bin is tiltedly carved the elastic hook of nail bin frame bottom is depressed, and makes push rod can promote ejector pin and tiltedly carves in the nail bin frame and move forward.
The both sides of the nearly portion of the face of nail bin can have the distal part of elongated slot, two sides the hook groove can be arranged far-end fluted, the bottom.The top of the both sides of the nearly portion of nail bin cover can have the distal part of crimp, two sides can have the far-end of flange, bottom that hook can be arranged.When the nail bin cover is installed in the bottom of nail bin, in the elongated slot of the both sides of the nearly portion of the face of the crimp insertion nail bin at the top of the both sides of the nearly portion of nail bin cover, in the groove of the distal part of two sides of the flange insertion nail bin of the distal part of two sides of nail bin cover, the hook of the far-end of the bottom of nail bin cover hooks in the hook groove of far-end of bottom of nail bin, the nail bin cover is fixed on the bottom of nail bin.
The centre of the nearly portion of the face of the nail bin in the nail bin groupware of surgical linear Endo-GIA of the present invention can flexible hook, and can there be nearly groove and groove far away in the top of the nearly portion that ejector pin is tiltedly carved.When ejector pin is tiltedly carved when being installed in the nail bin, the elastic hook of nail bin springs in the groove far away that ejector pin tiltedly carves, and ejector pin is tiltedly carved the initial position that constrains in the nail bin.After after push rod moves forward in the nail bin frame, moving backward again, the elastic hook of nail bin springs in the nearly groove that ejector pin tiltedly carves, constrain in the gap that exists between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, make the elastic hook of bottom of nail bin frame can spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
Can there be projection at the middle part that ejector pin in the nail bin groupware of surgical linear Endo-GIA of the present invention is tiltedly carved, on the surface of the projection at the middle part that ejector pin is tiltedly carved cover plate can be arranged, can be porose on the cutter.After the cover plate on surface of crossing the projection at the middle part that ejector pin tiltedly carves when the aperture strain on the cutter sprang on the projection at the middle part that ejector pin tiltedly carves, cutter were fixed on ejector pin and tiltedly carve.
The projection at the middle part that ejector pin is tiltedly carved can be keyhole, on the surface of the projection of the keyhole at the middle part that ejector pin is tiltedly carved cover plate can be arranged, and the hole on the cutter can be keyhole.After the cover plate on surface of projection of crossing the keyhole at the middle part that ejector pin tiltedly carves when the aperture strain of the keyhole on the cutter sprang on the projection of keyhole, cutter were fixed on ejector pin and tiltedly carve.
The inclined-plane can be arranged at the bottom of the cover plate on the surface of the projection at the middle part that ejector pin is tiltedly carved.After the inclined-plane of cover plate on surface of crossing the projection at the middle part that ejector pin tiltedly carves when the aperture strain on the cutter sprang on the projection at the middle part that ejector pin tiltedly carves, cutter were fixed on ejector pin and tiltedly carve.
Description of drawings
Fig. 1 is the outside drawing of expression surgical linear Endo-GIA of the present invention when nail bin groupware and nail-anvil assembly are in open configuration;
Fig. 2 is the outside drawing of surgical linear Endo-GIA when nail bin groupware and nail-anvil assembly are in clamped condition of presentation graphs 1;
Fig. 3 is the outside drawing after the surgical linear Endo-GIA of presentation graphs 1 is removed shell;
Fig. 4 is the outside drawing after the surgical linear Endo-GIA of presentation graphs 2 is removed shell;
Fig. 5 is the outside drawing of the nail bin groupware of expression surgical linear Endo-GIA of the present invention;
Fig. 6 is the outside drawing of the nail bin frame of presentation graphs 5;
Fig. 7 is the outside drawing that the bottom of presentation graphs 5 is equipped with the nail bin of nail bin cover;
Fig. 8 is the interior ejector pin piece of installing of the nail bin of presentation graphs 7 and the outside drawing of anastomosis staple;
Fig. 9 is the outside drawing of the nail bin cover of presentation graphs 7;
Figure 10 is the outside drawing of the nail bin of presentation graphs 7;
Figure 11 is the outside drawing of another side of the nail bin of expression Figure 10;
Figure 12 is the front view (subsidiary most proximal end ejector pin piece and anastomosis staple) of the firing lock of presentation graphs 5;
Figure 13 is the front view of the push rod of expression Figure 12;
Figure 14 is that the ejector pin of expression Figure 12 is tiltedly carved the amplification outside drawing with cutter;
Figure 15 is the amplification outside drawing that the ejector pin of expression Figure 14 is tiltedly carved;
Figure 16 is the amplification outside drawing of the cutter of expression Figure 14;
Figure 17 is the front view of the nail bin groupware of the surgical linear Endo-GIA of presentation graphs 1 when being in not clamped state;
Figure 18 is the cutaway view of the surgical linear Endo-GIA of expression Figure 17;
Figure 19 is the front view of the nail bin groupware of the surgical linear Endo-GIA of presentation graphs 2 when being in clamped state;
Figure 20 is the cutaway view of the surgical linear Endo-GIA of expression Figure 19;
Figure 21 is that the nail bin groupware of surgical linear Endo-GIA of expression Figure 18 is in the cutaway view when finishing percussion back firing lock and returning original state.
The specific embodiment
Use way of example below, state the most preferred embodiment of the nail bin groupware of surgical linear Endo-GIA of the present invention by reference to 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 purpose and the practical ways of advantage.
As shown in Figure 1, direction 1 expression is near, and direction 2 expressions are far away, direction 3 expression left sides, and direction 4 expressions are right, and in direction 5 expressions, direction 6 expressions are down.It is vertical that direction 1 and direction 2 are formed surgical linear Endo-GIA 7, and it is horizontal that direction 3 and direction 4 are formed surgical linear Endo-GIA 7, and direction 5 and direction 6 are formed surgical linear Endo-GIA 7 arrowheads.
Below in conjunction with Fig. 1 to Figure 21 shape and the structure of the nail bin groupware 8 of surgical linear Endo-GIA 7 of the present invention are described, the effect of nail bin groupware 8 is described.
Surgical linear Endo-GIA 7 is made up of nail bin groupware 8, nail-anvil assembly 9 and clamp hook 10.As shown in figures 1 and 3, surgical linear Endo-GIA 7 is in open configuration.As Fig. 2 and shown in Figure 4, surgical linear Endo-GIA 7 is in clamped condition.
, nail bin 11 is arranged in the nail bin groupware 8, the nail bin frame 12 of nail bin 11 is installed and is installed in firing lock 13 in the nail bin frame 12 to shown in Figure 16 as Fig. 5.Ejector pin piece 14 and anastomosis staple 15 are installed in nail bin 11.A plurality of anastomosis staples 15 respectively are staggered to two rows in the both sides of nail bin cutter groove 16.Briquetting 17 is arranged on the nail bin frame 12.Firing lock 13 by push button 18, slide block 19, push rod 20, ejector pin tiltedly carve 21 and cutter 22 form.
As shown in Figure 3 and Figure 4, nail anvil 23 and nail anvil frame 24 are arranged in the nail-anvil assembly 9.Be arranged with the anastomosis staple grooving 25 corresponding with anastomosis staple 15 positions in the nail bin 11 on the surface of nail anvil 23.A plurality of anastomosis staple groovings 25 respectively are staggered to two rows on the both side surface of nail anvil cutter groove 26.Middle part projection 27 and nearside projection 28 are arranged on the nail anvil frame 24.
To shown in Figure 16, pivot hole 29 and hook 30 are arranged on the clamp hook 10 as Fig. 3.The pivot hole 28 of clamp hook 10 is connected with nail bin frame 12 pivots 31.After nail bin groupware 8 and nail-anvil assembly 9 close up mutually, clamp hook 10 around nail bin frame 12 pivots 31 rotate, the hook 30 of clamp hook 10 hooks the middle part projection 27 on the nail anvil frame 24, the briquetting 17 that drives on the nail bin frame 12 is pressed on the nearside projection 28 of nail anvil frame 24, makes nail bin groupware 8 and nail-anvil assembly 9 clamped hooks 10 clamp.When push button 18 promotion slide blocks 19 move forward in nail bin frame 12, slide block 19 promotes push rod 20 and moves forward in nail bin frame 12, push rod 20 promote again ejector pin tiltedly carve 21 and cutter 22 in nail bin frame 12, move forward, ejector pin is tiltedly carved 21 and is promoted each ejector pin piece 14 more successively anastomosis staple 15 is released in nail bin 11.
To shown in Figure 21, the far-end of the push rod 20 in the nail bin groupware 8 has U-shaped fork 32 as Figure 17, and ejector pin is tiltedly carved U-lag 33 on 21.Ejector pin is tiltedly carved the longitudinal length of the U-lag 33 on 21 greater than the longitudinal length of the distal rod 34 of the U-shaped fork 32 of push rod 20.The flexible hook 35 in the bottom of nail bin frame 12.In the time of in nail bin 11 is not installed in nail bin frame 12, the elastic hook 35 of nail bin frame 12 bottoms blocks the U-shaped fork 32 of push rod 20, stops that push rod 20 moves forward in nail bin frame 12.In the time of in nail bin 11 is installed in nail bin frame 12, the U-shaped of push rod 20 fork 32 inserts ejector pins and tiltedly carves in the U-lag 33 on 21.When the ejector pin in the nail bin 11 tiltedly carves 21 when the elastic hook 35 of nail bin frame 12 bottoms depressed, push rod 20 can promote ejector pin and tiltedly carve 21 and move forward in nail bin frame 12.After after push rod 20 moves forward in nail bin frame 12, moving backward again, because ejector pin is tiltedly carved the longitudinal length of the U-lag 33 on 21 greater than the longitudinal length of the distal rod 34 of the U-shaped fork 32 of push rod 20, tiltedly carve at ejector pin between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20 and have gap 36, make the elastic hook 35 of bottom of nail bin frame 12 can spring into ejector pin and tiltedly carve in the gap 36 between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20, stop that push rod 20 moves forward in nail bin frame 12.
The bottom of the nail bin 11 in the nail bin groupware 8 is equipped with nail bin cover 37.Groove 38 is arranged at the bottom of nail bin cover 37.When after push rod 20 moves forward in nail bin frame 12, moving backward again, because ejector pin is tiltedly carved the longitudinal length of the U-lag 33 on 21 greater than the longitudinal length of the distal rod 34 of the U-shaped fork 32 of push rod 20, tiltedly carve at ejector pin between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20 and have gap 36, make the groove 38 of the bottom that the elastic hook 35 of bottom of nail bin frame 12 can be by nail bin cover 37 spring into ejector pin and tiltedly carve in the gap 36 between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20, stop that push rod 20 moves forward in nail bin frame 12.
The flexible projection 39 in the side of nail bin cover 37.Waist shape locating hole 40 is arranged on the nail bin frame 12.In the time of in nail bin 11 is installed in nail bin frame 12, the ejector pin that the elastic hook 35 of nail bin frame 12 bottoms withstands in the nail bin 11 tiltedly carves 21, make the elastic projection 39 on the nail bin cover 37 spring into the top 41 of the waist shape locating hole 40 on the nail bin frame 12, the bottom of nail bin 11 is separated with nail bin frame 12, the elastic hook 35 of nail bin frame 12 bottoms blocks the U-shaped fork 32 of push rod 20, stop that push rod 20 moves forward in nail bin frame 12, retrain the lengthwise position between nail bin 11 and the nail bin frame 12 simultaneously.When nail bin groupware 8 clamps with nail-anvil assembly 9 clamped hooks 10, elastic projection 39 on the nail bin cover 37 moves into the bottom 42 of the waist shape locating hole 40 on the nail bin frame 12, the bottom of nail bin 11 is crushed on the nail bin frame 12, thereby the ejector pins in the nail bin 11 are tiltedly carved 21 the elastic hook 35 of nail bin frame 12 bottoms are depressed, and make push rod 20 can promote ejector pin and tiltedly carve 21 and move forward in nail bin frame 12.
To shown in Figure 11, the both sides of the nearly portion of the face of nail bin 11 have that the distal part of elongated slot 43, two sides is fluted 44, the far-end of bottom has hook groove 45 as Fig. 7.The top of the both sides of the nearly portion of nail bin cover 37 has the distal part of crimp 46, two sides to have the far-end of flange 47, bottom that hook 48 is arranged.When nail bin cover 37 is installed on the nail bin 11, in the elongated slot 43 of the both sides of the nearly portion of the face of the crimp 46 insertion nail bins 11 at the top of the both sides of the nearly portion of nail bin cover 37, in the groove 44 of the distal part of two sides of the flange 47 insertion nail bins 11 of the distal part of two sides of nail bin cover 37, the hook 48 of the far-end of the bottom of nail bin cover 37 hooks in the hook groove 45 of far-end of bottom of nail bin 11, nail bin cover 37 is fixed on the bottom of nail bin 11.
To shown in Figure 21, there are nearly groove 50 and groove 51 far away in the top that the flexible hook 49 in centre of the nearly portion of the face of the nail bin 11 in the nail bin groupware 8, ejector pin are tiltedly carved 21 nearly portion as Figure 10.When ejector pin tiltedly carves 21 when being installed in the nail bin 11, the elastic hook 49 of nail bin 11 springs into ejector pin and tiltedly carves in 21 the groove far away 51, and ejector pin is tiltedly carved 21 initial position that constrain in the nail bin 11.After after push rod 20 moves forward in nail bin frame 12, moving backward again, the elastic hook 49 of nail bin 11 springs into ejector pin and tiltedly carves in 21 the nearly groove 50, constrain in ejector pin and tiltedly carve the gap 36 that exists between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20, make the elastic hook 35 of bottom of nail bin frame 12 can spring into ejector pin and tiltedly carve in the gap 36 between the distal rod 34 of U-shaped fork 32 of U-lag 33 on 21 and push rod 20, stop that push rod 20 moves forward in nail bin frame 12.
Extremely shown in Figure 16 as Figure 14, ejector pins in the nail bin groupware 8 are tiltedly carved 21 middle part the projection 52 that is keyhole, there is cover plate 53 on the surface of projection 52 of tiltedly carving the keyhole at 21 middle part at ejector pin, and inclined-plane 54 is arranged at the bottom of cover plate 53 on surface of projection 52 that ejector pin is tiltedly carved the keyhole at 21 middle part.The hole 55 that is keyhole is arranged on the cutter 22.Cross ejector pin when the hole 54 of the keyhole on the cutter 22 through strain and tiltedly carve the inclined-plane 54 of cover plate 53 on surface of projection 52 of the keyhole at 21 middle part and spring into after ejector pin tiltedly carves on the projection 52 of keyhole at 21 middle part, cutter 22 are fixed on ejector pin and tiltedly carve on 21.
According to above-mentioned detailed introduction as can be known, compare with existing various surgical linear Endo-GIAs, the nail bin groupware of surgical linear Endo-GIA of the present invention has following technique effect:
In order to ensure safe handling surgical linear Endo-GIA, in the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps or when firing lock, moved back or when anastomosis staple had been released in the nail bin but more do not renewed nail bin as yet, the nail bin groupware of surgical linear Endo-GIA should possess the technique effect that the prevention firing lock moves.
The nail bin groupware of existing surgical linear Endo-GIA: make one as push rod and cutter in the nail bin groupware of the surgical linear Endo-GIA introduced in the United States Patent (USP) publicity 20090308909, extend to the nail bin place from push button and slide block always, be elongated thin slice, in the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps, after spring leaf on the nail bin frame will be made the push rod of one and cutter and raise, push rod and the cutter of making one are stuck on the block of nail bin frame, to stop the firing lock action.The dissatisfied place of making us of the firing lock of the surgical linear Endo-GIA of this style is: the cutter that are on the elongated laminar push rod need punch process, can't adopt the sharp cutter of hard material manufacture, and, do not possess when firing lock and moved that back or anastomosis staple have been released in the nail bin but the technique effect that stops firing lock to move again during the nail bin that more do not renew as yet.Be installed in the cutter cover at nail bin end face place as the cutter in the nail bin groupware of the surgical linear Endo-GIA introduced in the United States Patent (USP) publicity 20080116244; In the time of in nail bin is not installed in the nail bin frame or when the not clamped hook of nail bin groupware and nail-anvil assembly clamps, after the spring leaf on the nail bin frame is raised push rod, push rod is stuck on the block of nail bin frame, to stop the firing lock action; When anastomosis staple has been released in the nail bin but during the nail bin that more do not renew as yet, the cutter cover holds up to stop the clamped hook clamping of nail bin groupware and nail-anvil assembly.The dissatisfied place of making us of the firing lock of the surgical linear Endo-GIA of this style is: the structure that cutter are installed in the cutter cover at nail bin end face place is complicated, and, do not possess the technique effect that after firing lock moves, stops firing lock to move again yet.Therefore the nail bin groupware of existing surgical linear Endo-GIA also need improve.
The far-end of the push rod in the nail bin groupware of surgical linear Endo-GIA of the present invention has the U-shaped fork, ejector pin has tiltedly been carved U-lag, the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, the flexible projection in the side of nail bin cover has the flexible hook in locating hole, bottom that is waist shape on the nail bin frame; Thereby in the time of in nail bin is installed in the nail bin frame, elastic projection on the nail bin cover springs in the locating hole on the nail bin frame, lengthwise position between constraint nail bin and the nail bin frame, the ejector pin that the elastic hook of nail bin frame bottom withstands in the nail bin is tiltedly carved, make the elastic projection on the nail bin cover spring into the top of the waist shape locating hole on the nail bin frame, the bottom of nail bin is separated with the nail bin frame, and the elastic hook of nail bin frame bottom blocks the U-shaped fork of push rod, stops that push rod moves forward in the nail bin frame; When the clamped hook of nail bin groupware and nail-anvil assembly clamps, elastic projection on the nail bin cover moves into the bottom of the waist shape locating hole on the nail bin frame, the bottom of nail bin is crushed on the nail bin frame, ejector pin in the nail bin is tiltedly carved the elastic hook of nail bin frame bottom is depressed, and makes push rod can promote ejector pin and tiltedly carves in the nail bin frame and move forward; When after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the groove of the bottom that the elastic hook of bottom of nail bin frame can be by the nail bin cover spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame; When reaching in nail bin is not installed in the nail bin frame or the technique effect that the prevention firing lock moves when the not clamped hook of nail bin groupware and nail-anvil assembly clamps or when firing lock moves after, make when the surgical linear Endo-GIA is used in surgical operation safer.
There is the projection that is keyhole at the middle part that ejector pin in the nail bin groupware of surgical linear Endo-GIA of the present invention is tiltedly carved, surface at the projection of the keyhole at the middle part that ejector pin is tiltedly carved has the bottom of cover plate, cover plate that the inclined-plane is arranged, and the hole that is keyhole is arranged on the cutter; Thereby reach after the inclined-plane of cover plate on surface of projection that the aperture strain of the keyhole on the cutter is crossed the keyhole at the middle part that ejector pin tiltedly carves springs on the projection of keyhole at the middle part that ejector pin tiltedly carves, cutter are fixed on the technique effect that ejector pin is tiltedly carved.Because the cutter shape is little and simple, make and can use the sharper cutter of harder material manufacture on the surgical linear Endo-GIA, more laborsaving when in surgical operation, being used.
So as can be seen, the above-mentioned target of stating comprises by front those shown targets of explanation being effectively achieved.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, and state in should the restriction as claim to keep affiliated field secondary technology personnel be apparent any improvement or remodeling.
Claims (9)
1. the nail bin groupware of a surgical linear Endo-GIA, described surgical linear Endo-GIA is made up of nail bin groupware, nail-anvil assembly and clamp hook;
Nail bin is arranged in the described nail bin groupware, the nail bin frame of described nail bin is installed and is installed in the interior firing lock of described nail bin frame, it is linear that nail bin is, ejector pin piece and anastomosis staple are installed in nail bin, a plurality of described anastomosis staples are staggered in nail bin more than two rows (comprising two rows), on the nail bin frame briquetting are arranged; Described firing lock is tiltedly carved with cutter by push button, slide block, push rod, ejector pin and is formed;
Nail anvil and nail anvil frame are arranged in the described nail-anvil assembly, described nail anvil is linear, be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in the nail bin on the surface of nail anvil, a plurality of described anastomosis staple groovings are staggered to more than two rows (comprising two rows) on the surface of nail anvil, and middle part projection and nearside projection are arranged on the nail anvil frame;
Pivot hole and hook are arranged on the described clamp hook, and the pivot hole of described clamp hook and described nail bin frame are pivotally connected;
After nail bin groupware and nail-anvil assembly close up mutually, described clamp hook rotates, hooks the middle part projection on the described nail anvil frame around nail bin frame pivot, the briquetting that drives on the described nail bin frame is pressed on the nearside projection of described nail anvil frame, makes the clamped hook of nail bin groupware and nail-anvil assembly clamp; When push button promotion slide block moves forward in the nail bin frame, slide block promotes described push rod and moves forward in the nail bin frame, push rod promotes described ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted each described ejector pin piece more successively anastomosis staple is released in nail bin;
It is characterized in that: the far-end of described push rod has the U-shaped fork, and described ejector pin has tiltedly been carved U-lag, and the longitudinal length of the U-lag that described ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of described push rod, the flexible hook in the bottom of described nail bin frame; In the time of in described nail bin is not installed in the nail bin frame, the elastic hook of described nail bin frame bottom blocks the U-shaped fork of push rod, stops that push rod moves forward in the nail bin frame; In the time of in nail bin is installed in the nail bin frame, in the U-lag that the U-shaped of push rod fork insertion ejector pin is tiltedly carved; When the ejector pin in the nail bin is tiltedly carved when the elastic hook of nail bin frame bottom depressed, push rod can promote ejector pin and tiltedly carve in the nail bin frame and move forward; After after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the elastic hook of bottom of nail bin frame can spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
2. the nail bin groupware of surgical linear Endo-GIA according to claim 1 is characterized in that, the bottom of described nail bin is equipped with the nail bin cover, and groove is arranged at the bottom of described nail bin cover; When after push rod moves forward in the nail bin frame, moving backward again, because the longitudinal length of the U-lag that ejector pin is tiltedly carved is greater than the longitudinal length of the distal rod of the U-shaped fork of push rod, between the distal rod of the U-shaped fork of U-lag that ejector pin is tiltedly carved and push rod, there is the gap, make the groove of the bottom that the elastic hook of bottom of nail bin frame can be by described nail bin cover spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
3. the nail bin groupware of surgical linear Endo-GIA according to claim 2 is characterized in that, the flexible projection in the side of described nail bin cover has locating hole on the described nail bin frame; In the time of in described nail bin is installed in the nail bin frame, the elastic projection on the described nail bin cover springs in the locating hole on the described nail bin frame, the lengthwise position between constraint nail bin and the nail bin frame.
4. the nail bin groupware of surgical linear Endo-GIA according to claim 3 is characterized in that, the locating hole on the described nail bin frame is waist shape; In the time of in described nail bin is installed in described nail bin frame, the ejector pin that the elastic hook of described nail bin frame bottom withstands in the described nail bin is tiltedly carved, make the elastic projection on the described nail bin cover spring into the top of the waist shape locating hole on the described nail bin frame, the bottom of nail bin is separated with the nail bin frame, the elastic hook of nail bin frame bottom blocks the U-shaped fork of described push rod, stops that described push rod moves forward in the nail bin frame; When described nail bin groupware and described nail-anvil assembly are clamped by described clamp hook, elastic projection on the nail bin cover moves into the bottom of the waist shape locating hole on the nail bin frame, the bottom of nail bin is crushed on the nail bin frame, thereby the ejector pin in the nail bin is tiltedly carved the elastic hook of nail bin frame bottom is depressed, and makes push rod can promote ejector pin and tiltedly carves in the nail bin frame and move forward.
5. the nail bin groupware of surgical linear Endo-GIA according to claim 2, it is characterized in that, the both sides of the nearly portion of the face of described nail bin have the distal part of elongated slot, two sides far-end fluted, the bottom that the hook groove is arranged, and the top of the both sides of the nearly portion of described nail bin cover has the distal part of crimp, two sides to have the far-end of flange, bottom that hook is arranged; When the nail bin cover is installed in the bottom of nail bin, the crimp at the top of the both sides of the nearly portion of described nail bin cover inserts in the elongated slot of both sides of nearly portion of face of described nail bin, the flange of the distal part of two sides of described nail bin cover inserts in the groove of distal part of two sides of described nail bin, the hook of the far-end of the bottom of described nail bin cover hooks in the hook groove of far-end of bottom of described nail bin, the nail bin cover is fixed on the bottom of nail bin.
6. the nail bin groupware of surgical linear Endo-GIA according to claim 1 is characterized in that, the flexible hook in the centre of the nearly portion of the face of described nail bin, and there are nearly groove and groove far away in the top of the nearly portion that described ejector pin is tiltedly carved; When ejector pin is tiltedly carved when being installed in the nail bin, the elastic hook of described nail bin springs in the groove far away that described ejector pin tiltedly carves, and ejector pin is tiltedly carved the initial position that constrains in the nail bin; After after described push rod moves forward in described nail bin frame, moving backward again, the elastic hook of described nail bin springs in the nearly groove that described ejector pin tiltedly carves, constrain in the gap that exists between the distal rod of U-shaped fork of U-lag that described ejector pin tiltedly carves and described push rod, make the elastic hook of bottom of described nail bin frame can spring in the gap between the distal rod of U-shaped fork of U-lag that ejector pin tiltedly carves and push rod, stop that push rod moves forward in the nail bin frame.
7. the nail bin groupware of surgical linear Endo-GIA according to claim 1 is characterized in that, there is projection at the middle part that described ejector pin is tiltedly carved, on the surface of the projection at the middle part that described ejector pin is tiltedly carved cover plate is arranged, and is porose on the described cutter; After the cover plate on surface of crossing the projection at the middle part that ejector pin tiltedly carves when the aperture strain on the described cutter sprang on the projection at the middle part that ejector pin tiltedly carves, cutter were fixed on ejector pin and tiltedly carve.
8. the nail bin groupware of surgical linear Endo-GIA according to claim 7, it is characterized in that, the projection at the middle part that described ejector pin is tiltedly carved is keyhole, on the surface of the projection of the keyhole at the middle part that described ejector pin is tiltedly carved cover plate is arranged, and the hole on the described cutter is keyhole; After the cover plate on surface of projection of crossing the keyhole at the middle part that described ejector pin tiltedly carves when the aperture strain of the keyhole on the described cutter sprang on the projection of keyhole, cutter were fixed on ejector pin and tiltedly carve.
9. the nail bin groupware of surgical linear Endo-GIA according to claim 7 is characterized in that, the inclined-plane is arranged at the bottom of the cover plate on the surface of the projection at the middle part that described ejector pin is tiltedly carved; After the inclined-plane of cover plate on surface of crossing the projection at the middle part that described ejector pin tiltedly carves when the aperture strain on the described cutter sprang on the projection at the middle part that ejector pin tiltedly carves, cutter were fixed on ejector pin and tiltedly carve.
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| CN201210002355.5A CN103190938B (en) | 2012-01-05 | 2012-01-05 | The nail bin groupware of surgical linear Endo-GIA |
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| CN201210002355.5A CN103190938B (en) | 2012-01-05 | 2012-01-05 | The nail bin groupware of surgical linear Endo-GIA |
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| CN103190938B CN103190938B (en) | 2016-05-11 |
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| CN103190938B (en) | 2016-05-11 |
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