CN104173088A - Cut stapler - Google Patents

Cut stapler Download PDF

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Publication number
CN104173088A
CN104173088A CN201310198481.7A CN201310198481A CN104173088A CN 104173088 A CN104173088 A CN 104173088A CN 201310198481 A CN201310198481 A CN 201310198481A CN 104173088 A CN104173088 A CN 104173088A
Authority
CN
China
Prior art keywords
ejector pin
nail kit
frame
stapler
arm
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.)
Granted
Application number
CN201310198481.7A
Other languages
Chinese (zh)
Other versions
CN104173088B (en
Inventor
张淦
董家权
陈晓强
方云才
汪炬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Ricky surgical instruments Limited by Share Ltd
Original Assignee
REACH SURGICAL INSTRUMENT (CHINA) CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by REACH SURGICAL INSTRUMENT (CHINA) CO Ltd filed Critical REACH SURGICAL INSTRUMENT (CHINA) CO Ltd
Priority to CN201310198481.7A priority Critical patent/CN104173088B/en
Publication of CN104173088A publication Critical patent/CN104173088A/en
Application granted granted Critical
Publication of CN104173088B publication Critical patent/CN104173088B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical 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
    • A61B17/07207Surgical 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/0057Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00646Type of implements
    • A61B2017/00663Type of implements the implement being a suture
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical 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
    • A61B2017/07214Stapler heads
    • A61B2017/07285Stapler heads characterised by its cutter

Abstract

The invention relates to the technical field of medical instruments and discloses a cut stapler to improve the safety factor of the cut stapler and reduce pain brought to an operation patient by false trigger. The cut stapler comprises an anvil arm, a staple box arm provided with a staple box, a trigger device and a safety device, wherein the trigger device comprises a staple pushing frame for triggering a staple in the staple box; the staple pushing frame is provided with a chute formed along the motion direction and a clamping hole intersected with the chute; the safety device comprises a safety body and an elastic piece; the safety body can be assembled on the staple box arm in a mode of moving between a high place and a low place through the elastic piece; the safety body is provided with a passing groove for the stable pushing frame to pass through, is provided with a clamping position which is interfered with the clamping hole of the stable pushing frame when the safety body is positioned in the high place, and is provided with a neck which is positioned in the chute of the stable pushing frame to allow the stable pushing frame to move relative to the safety body when the safety body is positioned in the low place.

Description

A kind of stapler
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of stapler.
Background technology
Stapler is a kind of medical apparatus and instruments being widely used in surgical operation, has and sews up and two functions of cutting, and when carrying out wound suture, can be by unnecessary cutting tissue.This instrumentation is easy, and good operation effect can greatly reduce the misery of bringing to surgical patient, therefore, has obtained the consistent approval of vast surgeon.
As shown in Figure 1, stapler generally includes nail anvil arm 11 and the nail kit arm 13 of handle 50 and submission jaw mouth shape, and nail anvil arm 11 and nail kit arm 13 are respectively arranged with nail anvil 52 and nail kit 12 in the side towards jaw, are provided with percussion push button 51 on handle 50.Its working mechanism is: the jaw that the tissue of stitching to be cut is placed in to nail anvil arm 11 and 13 formation of nail kit arm, operating grip 50 makes jaw that tissue clamping is put in place, promote percussion push button 51, make to pull the trigger the pushing device (not shown) that push button 51 promotes connected wedge shape, pushing device is released one by one the multiple row staple in nail kit 12 through tissue in pushing course, and bend to " B " shape under nail anvil 52 effects, to realize tissue apposition; Meanwhile, be positioned at the cutter (not shown) at multiple row staple center line position, also by percussion push button 51, promoted that tissue is cut in the lump, staple molding has been synchronizeed with cutting.Fracture both sides form two symmetrical row stitching thread, realize tissue and turn-off.
In surgical procedures, conventionally need to repeatedly sew up, cut and organize, therefore, stapler, when clinical use, need to repeatedly be changed nail kit, if stapler is driven by mistake, the serious consequence that very likely can cause staple mistakenly hit to send out.Existing stapler customary risks coefficient is lower, often can be because mistakenly hit is sent out and brings unnecessary misery to surgical patient.
Summary of the invention
The object of this invention is to provide a kind of stapler, to improve the safety factor of stapler, reduce and to issue the misery that surgical patient brings because of mistakenly hit.
Stapler of the present invention, comprising:
Nail anvil arm and the nail kit arm that nail kit is housed;
Percussion lock, comprises the ejector pin frame of pulling the trigger the staple in described nail kit, and described ejector pin frame has the chute of offering along the direction of motion and the screens hole intersecting with described chute;
Safety, described safety comprise insurance body and elastic component, described insurance body can move by described elastic component between a high position and low level is assemblied in described nail kit arm, described insurance body has the groove that passes through passing for described ejector pin frame, described insurance body has at described insurance body during in a high position and the screens of the described screens hole interference of described ejector pin frame, described insurance body have at described insurance body, be positioned at described ejector pin frame during in low level described chute to allow described ejector pin frame with respect to the cervical region of described insurance body motion.
Preferably, described nail kit arm comprises bottom and two sidepieces that are positioned at described two bottom sides, and described in each, sidepiece offers at least one chute hole along short transverse, and described insurance body has at least two slide posts of slidable fit in described chute hole respectively;
Described elastic component is the stage clip between described insurance body and the described bottom of described nail kit arm.
More excellent, described in each, slide post has along the installation guiding surface of glide direction setting and the dismounting guiding surface arranging along dismounting glide direction are installed.
Preferably, the quantity of described stage clip is a plurality of and is uniformly distributed, and described insurance body has for the set hole seat of stage clip described in each.
Preferably, described sickle stiching instrument also comprises cutter, and described percussion lock also comprises the push broach frame that promotes described cutter;
Described nail kit has the cutting groove that holds described cutter motion, and the cutting top of described cutting groove is provided with bolt, and described bolt can be pushed into Qie release position, release position from make position by described push broach frame and can not automatically reset to make position;
Described insurance body has the high-order support portion connecting with described bolt in the close position, when described nail kit packs described nail kit arm and described nail kit arm and described nail anvil arm closure into, described bolt presses to low level by described high-order support portion by described insurance body; When described bolt is pushed into release position by described push broach frame, described bolt and described high-order support portion lose butt.
Preferably, described bolt comprises L-shaped pin body and breechblock, described pin body and described nail kit pivot dress.
Preferably, described push broach frame has the bayonet socket matching with the described breechblock shape of described bolt.
Preferably, described insurance body also has the vacancy of hiding in the low level of the described bolt of the release position sky portion of hiding, and described high-order support portion and the described low level sky portion of hiding has the spigot surface matching with the described ejector pin frame direction of motion.
Preferably, described cutter have the first snap fit of recess shape, and described push broach frame has the second snap fit connecing with described the first snap fit kissing.
Optionally, described percussion lock also comprises percussion push button, the percussion piece that locks the locking card column of described percussion push button and be connected described push broach frame and described ejector pin frame, and described percussion push button, described locking card column and described percussion piece are synchronizeed and driven with described push broach frame and described ejector pin frame.
In technical solution of the present invention, when insuring body in a high position, the insurance screens of body and the screens hole interference of ejector pin frame, now percussion lock cannot be advanced by percussion; And when insuring body in low level, the screens hole of ejector pin frame is avoided in the screens of insurance body, the cervical region of insurance body is positioned at the chute of ejector pin frame, and without interference, now percussion lock can be advanced by percussion with ejector pin frame.Therefore, can by controlling the position of the insurance body of safety, control the lock-out state of percussion lock, greatly improve the safety factor of stapler, reduce and issued the misery that surgical patient brings because of mistakenly hit.
Accompanying drawing explanation
Fig. 1 is the front view of existing stapler;
Fig. 2 is the front view (broken section) of embodiment of the present invention stapler;
Fig. 3 is the perspective view of safety;
Fig. 4 is the perspective view of insurance body;
Fig. 5 is the perspective view of nail kit arm;
Fig. 6 is ejector pin frame and safety assembling schematic diagram (in pulling the trigger state);
Fig. 7 is the local enlarged diagram in A place of Fig. 5;
Fig. 8 is ejector pin frame and safety assembling schematic diagram (in pulling the trigger state);
Fig. 9 is the local enlarged diagram in B place of Fig. 7;
Figure 10 is the partial sectional view that nail kit packs front guard frame place into;
Figure 11 is that nail kit packs nail kit arm into but the partial sectional view at nail anvil arm bolt place when closed with nail kit arm;
Figure 12 is the bolt view that is not open;
Figure 13 is the bolt view that is open.
Reference numeral:
11-nail anvil arm 12-nail kit 13-nail kit arm
15-cutter 16-push broach frame 17-ejector pin frame
18-chute 19-screens hole 20-insures body
21-elastic component 22-is by groove 23-screens
24-cervical region 27-chute hole 28-slide post
29-installs guiding surface 30-dismounting guiding surface 31-hole seat
The high-order support portion of 32-cutting groove 33-bolt 34-
The 35-low level 36-of the sky portion pin body 37-breechblock of hiding
38-bayonet socket 39-first snap fit 40-the second snap fit
50-handle 51-percussion push button 52 nail anvils
The specific embodiment
In order to improve the safety factor of stapler, reduce and issue because of mistakenly hit the misery that surgical patient brings, the embodiment of the present invention provides a kind of stapler.In technical solution of the present invention, ejector pin frame has the chute of offering along the direction of motion and the screens hole intersecting with chute, the insurance body of safety can move by elastic component between a high position and low level is assemblied in nail kit arm, have insurance body during in a high position with the screens of the screens hole interference of ejector pin frame be positioned at the cervical region of the chute of ejector pin frame when insuring body in low level.Can by controlling the position of the insurance body of safety, control the lock-out state of percussion lock, greatly improve the safety factor of stapler, reduce and issued the misery that surgical patient brings because of mistakenly hit.For making the object, technical solutions and advantages of the present invention clearer, by the following examples the present invention is described in further detail.
As shown in Fig. 2, Fig. 6 and Fig. 8, wherein, Fig. 2 is the front view (broken section) of embodiment of the present invention stapler; Fig. 6 is ejector pin frame and safety assembling schematic diagram (in pulling the trigger state); Fig. 8 is ejector pin frame and safety assembling schematic diagram (in pulling the trigger state).
The stapler of the embodiment of the present invention, comprising:
Nail anvil arm 11 and the nail kit arm 13 that nail kit 12 is housed, nail anvil arm 11 and nail kit arm 13 form jaws to clamp the tissue of stitching to be cut;
Percussion lock, comprises the ejector pin frame 17 of pulling the trigger the staple in nail kit, and ejector pin frame 17 has the chute 18 of offering along the direction of motion and the screens hole 19 intersecting with chute 18;
Safety, comprise insurance body 20 and elastic component 21, what insurance body 20 can move by elastic component 21 between a high position and low level is assemblied in nail kit arm 13, insurance body 20 have for ejector pin frame 17, pass pass through groove 22, also have when insuring body 20 in a high position and the screens 23 of screens hole 19 interferences of ejector pin frame 17, also there is the cervical region 24 of chute 18 to allow described ejector pin frame 17 to move with respect to described insurance body 20 that is positioned at ejector pin frame 17 during in low level at insurance body 20, chute 18 can slide to allow ejector pin frame 17 to move with respect to insurance body 20 along cervical region 24 in this case.
The cutter 15 that stapler cuts and organizes while being conventionally also included in nail anvil arm 11 and nail kit arm 13 closure, cutter 15 are arranged between nail kit 12 adjacent two row's staples along its length conventionally, and can move along the length direction of nail kit 12.Percussion lock also comprises the push broach frame 16 that promotes cutter 15.It is driven that push broach frame 16 and ejector pin frame 17 can be synchronizeed, also can be driven respectively, conventionally push broach frame 16 synchronize with ejector pin frame 17 driven, to realize synchronously carrying out of cutting and stitching.
During use, the formed jaw grasping tissue of nail anvil arm 11 and nail kit arm 13, after jaw closure puts in place, drive ejector pin frame 17 and push broach frame 16, staple in ejector pin frame 17 percussion nail kits 12, releases staple from nail kit 12, make it pass tissue and be B shape at the effect compacted under of nail anvil, to realize, sew up, push broach frame 16 promotes cutter 15 to realize tissue cutting.
In each embodiment of the present invention, nail anvil arm 11 and nail kit arm 13 is two tong arms of submission jaw mouth shape, and stapler can be respectively in five states: one, nail kit does not pack nail kit arm into; Two, nail kit packs nail kit arm into, but nail anvil arm not with nail kit arm closed (that is, nail anvil arm and the formed jaw of nail kit arm are in open mode); Three, nail kit packs nail kit arm into, and nail anvil arm and nail kit arm closed (that is, jaw is in closure state); Four, rear reset is pulled the trigger in percussion lock; Five, the nail kit of having been pulled the trigger packs nail kit arm into, and nail anvil arm and nail kit arm closed (being equivalent to the 4th kind of state).
The concrete shape in the screens hole 19 intersecting with chute 18 on ejector pin frame 17 is not limit, and for example, can be polygon, square etc., as long as itself and chute 18 intersect, namely the size along ejector pin frame 17 widths is greater than chute 18.When the insurance body 20 of safety is during in a high position, the screens 23 of insurance body 20 and screens hole 19 interferences of ejector pin frame 17, as shown in Figure 7, now, the screens 23 of insurance body 20 is positioned at the screens hole 19 of ejector pin frame 17.Cervical region 24 shapes of insurance body 20 are not limit, as long as the size along ejector pin frame 17 widths is less than chute 18, when insuring body 20 in low level, the interference with ejector pin frame screens hole 19 is avoided in the screens 23 of insurance body 20, as shown in Figure 9, ejector pin frame 17 can move through the cervical region 24 of insurance body 20.Preferably, the cervical region 24 of insurance body 20 and chute 18 matched in clearance of ejector pin frame 17, can provide guiding for the motion of ejector pin frame 17 like this, makes its direction of motion more accurate.
In technical solution of the present invention, when insuring body 20 in a high position, the screens 23 of insurance body 20 and screens hole 19 interferences of ejector pin frame 17, now ejector pin frame 17 cannot be advanced by percussion; And when insuring body 20 in low level, the screens hole 19 of ejector pin frame 17 is avoided in the screens 23 of insurance body 20, the cervical region 24 of insurance body 20 is positioned at the chute 18 of ejector pin frame 17, and without interfering, now ejector pin frame 17 can be advanced by percussion with ejector pin frame 17.
In certain embodiments, percussion lock comprises interrelated and by synchronously driven ejector pin frame and push broach frame, when stoping ejector pin frame to be sent out by mistakenly hit, has also stoped push broach frame and cutter to be sent out by mistakenly hit.
Therefore, can by controlling the position of the insurance body 20 of safety, control the lock-out state of percussion lock, greatly improve the safety factor of stapler, reduce and issued the misery that surgical patient brings because of mistakenly hit.
Safety can be designed as various version, as shown in Figure 3 and Figure 5, in the preferred embodiment, nail kit arm 13 comprises bottom and is positioned at two sidepieces of two bottom sides, each sidepiece offers at least one chute hole 27 along short transverse, and insurance body 20 has at least two slide posts 28 of slidable fit in chute hole 27 respectively; Elastic component 21 is the stage clip between insurance body 20 and the bottom of nail kit arm 13.The assembling that the spacing realization insurance body 20 of the compression by stage clip and reset and 27 pairs of slide posts 28 of nail kit arm 13 sidepiece chute holes can move between a high position and low level, has version simple, processes, advantage easy to assembly.Chute hole 27 can change according to specific design with the quantity of slide post 28, and both sides be symmetrical arranged can maintaining body operation stability.
In addition, as shown in Figure 4, for ease of dismounting, each slide post 28 has along the installation guiding surface 29 of glide direction setting and the dismounting guiding surface 30 arranging along dismounting glide direction are installed.Can be easily by safety dismounting by guiding surface 29 and dismounting guiding surface 30 are installed, and can not cause nail kit arm 13 to produce deformation.
The quantity of stage clip is not limit, be preferably a plurality of and be uniformly distributed, like this can be so that insurance body 20 stress balances, comparatively steady while moving between a high position and low level, in addition, insurance body 20 has for the set hole seat 31 of each stage clip, and hole seat 31 can provide guiding for compression and the reset of stage clip, is more conducive to insure the stress balance of body 20.
In the technical scheme of various embodiments of the present invention, as long as insurance body 20 is in a high position, the screens 23 of insurance body 20 just with screens hole 19 interferences of ejector pin frame 17, now ejector pin frame 17 just cannot be pulled the trigger.Shake-up insurance body 20 is pressed to the structure of low level and does not limit, and even can make it be down to low level by manual shake-up.
As shown in Figure 12 and Figure 13, in this embodiment, stapler also comprises cutter 15, and percussion lock also comprises the push broach frame 16 that promotes cutter 15;
Nail kit 12 has the cutting groove 32 that holds cutter 15 motions, and the cutting top of cutting groove 32 is provided with bolt 33, and bolt 33 can be pushed into release position from make position by push broach frame 16, and it can not automatically reset to make position in release position;
Insurance body 20 has the high-order support portion 34 connecting with bolt in the close position 33, when nail kit fills 12, enters nail kit arm 13 and nail anvil arm 11 when closed with nail kit arm 13, and bolt 33 presses to low level by high-order support portion 34 by insurance body 20; When bolt 33 is pushed open to release position by push broach frame 16, bolt 33 loses butt with high-order support portion 34, now insures body 20 mobile paramount position under the effect of elastic component.
Cutting groove 32 can provide guiding for the motion of push broach frame 16 and cutter 15.In this embodiment, when nail kit 12 packs nail kit arm 13 and nail anvil arm 11 and nail kit arm 13 closure into, bolt 33 by make position presses to low level by insurance body 20, now ejector pin frame 17 can be pulled the trigger, when the bolt 33 of make position is pushed into release position by push broach frame 16, lose butt with high-order support portion 34, because bolt 33 can not automatically reset in release position, therefore, even if re-start percussion after ejector pin frame 17 resets, 33 pairs of insurance bodies 20 of bolt also cannot be exerted pressure and move it to low level again, thereby prevent that ejector pin frame 17 from being pulled the trigger.
In addition, shown in Fig. 4, insurance body 20 also further has the vacancy of hiding in the low level of the bolt 33 of the release position sky portion 35 of hiding, and high-order support portion 34 and the low level sky portion 35 of hiding has the spigot surface matching with ejector pin frame 17 directions of motion.Spigot surface, for the motion of ejector pin frame 17 provides guiding, makes its motion more accurately, steadily.
The specific constructive form of bolt 33 is not limit, and as shown in figure 12, in this embodiment, bolt 33 comprises L-shaped pin body 36 and breechblock 37, pin body 36 and nail kit 12 pivot dresses.After breechblock 37 is pushed into release position by push broach frame 16, just can not automatically reset, the bolt structure of this embodiment is comparatively simple, and easy to assembly again.
As shown in figure 11, push broach frame 16 has the bayonet socket 38 matching with breechblock 37 shapes of bolt 33, and this makes push broach frame 16 and bolt 33 have comparatively compact structure.In addition, shown in Figure 12, cutter 15 have the first snap fit 39 of recess shape, and push broach frame 16 has the second snap fit 40 connecing with the first snap fit 39 kissings, and this makes to contact between push broach frame 16 and cutter 15 comparatively tight, cutting movement more steadily, reliable.
Take ejector pin frame 17 and the synchronously driven embodiment of push broach frame 16 is example:
When nail kit 12 does not pack nail kit arm 13 into, the stage clip of safety is in free state, insurance body 20 is in a high position, the screens 23 of insurance body 20 and screens hole 19 interferences of ejector pin frame 17, ejector pin frame 17 and push broach frame 16 cannot be pulled the trigger, and nail kit 12 packs the partial sectional view at front guard frame place into can be with reference to shown in Figure 10;
When nail kit 12 packs nail kit arm 13 into, but when nail anvil arm 11 is not closed with nail kit arm 13, the stage clip of safety is still in free state, insurance body 20 is in a high position, the screens 23 of insurance body 20 and screens hole 19 interferences of ejector pin frame 17, ejector pin frame 17 and push broach frame 16 cannot be pulled the trigger, and nail kit 12 packs into but the partial sectional view at nail anvil arm 11 bolt 33 places when closed with nail kit arm 13 can be with reference to shown in Figure 11;
When nail kit 12 packs nail kit arm 13 into, and when nail anvil arm 11 is closed with nail kit arm 13, the bolt 33 of nail kit 12 compresses the high-order support portion 34 of insurance body 20, thereby insurance body 20 is pressed to low level, the stage clip of safety is in energy accumulating state, the screens 23 of insurance body 20 is removed and is interfered with the screens hole of ejector pin frame 17 19, and ejector pin frame 17 and push broach frame 16 can be pulled the trigger;
When ejector pin frame 17 and the complete reset of push broach frame 16 percussion, push broach frame 16 and ejector pin frame 17 retreat, when the screens hole of ejector pin frame 17 19 processes are insured the screens 23 of bodies 20, because insurance body 20 is no longer subject to the pressure of bolt 33, stage clip will be released can, insurance body 20 high position of rebounding, the screens 23 of insurance body 20 again with screens hole 19 interferences of ejector pin frame 17.Therefore,, for same nail kit 12, ejector pin frame 17 and push broach frame 16, after percussion resets, cannot be pulled the trigger again.
In like manner, when the nail kit 12 of having been pulled the trigger packs nail kit arm 13 into by mistake, because bolt 33 cannot reset, insurance body 20 is not subject to the pressure of bolt 33, can only be in a high position, the screens 23 of insurance body 20 and screens hole 19 interferences of ejector pin frame 17, ejector pin frame 17 and push broach frame 16 still cannot be pulled the trigger.
Visible, the ejector pin frame 17 of this embodiment and push broach frame 16 only pack nail kit arm 13 in the nail kit 12 of not percussion, and when nail anvil arm 11 is closed with nail kit arm 13, just can pull the trigger, greatly improve the safety factor of stapler, reduce and issued the misery that surgical patient brings because of mistakenly hit.
In each embodiment of the present invention, the specific constructive form of percussion lock is not limit.For example, therein in an embodiment, percussion lock also can further comprise percussion push button, the locking card column of locking percussion push button and the percussion piece that is connected push broach frame and ejector pin frame, and percussion push button, locking card column and percussion piece are synchronizeed and driven with push broach frame and ejector pin frame.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (10)

1. a stapler, comprising:
Nail anvil arm (11) and the nail kit arm (13) of nail kit (12) is housed;
Percussion lock, comprises the ejector pin frame (17) of pulling the trigger the staple in described nail kit (12), and described ejector pin frame (17) has the chute (18) of offering along the direction of motion and the screens hole (19) intersecting with described chute (18);
It is characterized in that, also comprise safety, described safety comprise insurance body (20) and elastic component (21), described insurance body (20) can move by described elastic component (21) between a high position and low level is assemblied in described nail kit arm (13), described insurance body (20) have for described ejector pin frame (17), pass pass through groove (22), described insurance body (20) has at described insurance body (20) during in a high position and the screens (23) of described screens hole (19) interference of described ejector pin frame (17), described insurance body (20) have at described insurance body (20), be positioned at described ejector pin frame (17) during in low level described chute (18) to allow described ejector pin frame (17) with respect to the cervical region (24) of described insurance body (20) motion.
2. stapler as claimed in claim 1, it is characterized in that, described nail kit arm (13) comprises bottom and is positioned at two sidepieces of described two bottom sides, described in each, sidepiece offers at least one chute hole (27) along short transverse, and described insurance body (20) has at least two slide posts (28) of slidable fit in described chute hole (27) respectively;
Described elastic component (21) is for being positioned at the stage clip between described insurance body (20) and the described bottom of described nail kit arm (13).
3. stapler as claimed in claim 2, is characterized in that, slide post described in each (28) has along the installation guiding surface (29) of glide direction setting and the dismounting guiding surface (30) arranging along dismounting glide direction are installed.
4. stapler as claimed in claim 2, is characterized in that, the quantity of described stage clip is a plurality of and is uniformly distributed, and described insurance body (20) has for the set hole seat (31) of stage clip described in each.
5. stapler as claimed in claim 1 or 2, is characterized in that, described sickle stiching instrument also comprises cutter (15), and described percussion lock also comprises the push broach frame (16) that promotes described cutter (15);
Described nail kit (12) has the cutting groove (32) that holds described cutter (15) motion, the cutting top of described cutting groove (32) is provided with bolt (33), and described bolt (33) can be pushed into Qie release position, release position from make position by described push broach frame (16) and can not automatically reset to make position;
Described insurance body (20) has the high-order support portion (34) connecting with described bolt (33) in the close position, when described nail kit (12) packs described nail kit arm (13) and described nail kit arm (13) and described nail anvil arm (11) closure into, described bolt (33) presses to low level by described high-order support portion (34) by described insurance body (20); When described bolt (33) is pushed into release position by described push broach frame (16), described bolt (33) loses butt with described high-order support portion (34).
6. stapler as claimed in claim 5, is characterized in that, described bolt (33) comprises L-shaped pin body (36) and breechblock (37), described pin body (36) and described nail kit (12) pivot dress.
7. stapler as claimed in claim 6, is characterized in that, described push broach frame (16) has the bayonet socket (38) matching with described breechblock (37) shape of described bolt (33).
8. stapler as claimed in claim 5, it is characterized in that, described insurance body (20) also has the vacancy of hiding in the low level of the described bolt (33) of the release position sky portion (35) of hiding, and described high-order support portion (34) and the described low level sky portion (35) of hiding has the spigot surface matching with described ejector pin frame (17) direction of motion.
9. stapler as claimed in claim 5, is characterized in that, described cutter (15) have first snap fit (39) of recess shape, and described push broach frame (16) has the second snap fit (40) connecing with described the first snap fit (39) kissing.
10. the stapler as described in claim 5~9 any one, it is characterized in that, described percussion lock also comprises percussion push button, locks the locking card column of described percussion push button and be connected described push broach frame (16) and the percussion piece of described ejector pin frame (17), and described percussion push button, described locking card column and described percussion piece are synchronizeed driving with described push broach frame (16) and described ejector pin frame (17).
CN201310198481.7A 2013-05-24 2013-05-24 A kind of stapler Active CN104173088B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107334504A (en) * 2016-12-29 2017-11-10 江苏风和医疗器材股份有限公司 Shaft member and surgical instruments for surgical instruments
CN109199500A (en) * 2018-10-24 2019-01-15 汕头大学 The pushing device of purse-string suture device under a kind of hysteroscope
CN110536653A (en) * 2017-04-28 2019-12-03 爱德华兹生命科学公司 The stabilizing equipment and application method of medical device
CN110664449A (en) * 2019-11-05 2020-01-10 江苏省肿瘤医院 Cutting stitching instrument suitable for minimally invasive surgery
CN111466981A (en) * 2019-01-24 2020-07-31 苏州英途康医疗科技有限公司 Nail bin assembly and surgical operation instrument
CN112914644A (en) * 2021-01-25 2021-06-08 重庆迈科唯医疗科技有限公司 Endoscope anastomat

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CN101797174A (en) * 2010-03-02 2010-08-11 瑞奇外科器械(北京)有限公司 Safety device of linear cutting anastomat for surgery
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CN107334504A (en) * 2016-12-29 2017-11-10 江苏风和医疗器材股份有限公司 Shaft member and surgical instruments for surgical instruments
CN107334504B (en) * 2016-12-29 2019-01-25 江苏风和医疗器材股份有限公司 Shaft member and surgical instruments for surgical instruments
CN110536653A (en) * 2017-04-28 2019-12-03 爱德华兹生命科学公司 The stabilizing equipment and application method of medical device
CN110536653B (en) * 2017-04-28 2023-09-29 爱德华兹生命科学公司 Stabilization apparatus for medical devices and methods of use
CN109199500A (en) * 2018-10-24 2019-01-15 汕头大学 The pushing device of purse-string suture device under a kind of hysteroscope
CN109199500B (en) * 2018-10-24 2023-09-26 汕头大学 Nail pushing device of endoscopic purse-string suture device
CN111466981A (en) * 2019-01-24 2020-07-31 苏州英途康医疗科技有限公司 Nail bin assembly and surgical operation instrument
CN111466981B (en) * 2019-01-24 2021-05-28 苏州英途康医疗科技有限公司 Nail bin assembly and surgical operation instrument
CN110664449A (en) * 2019-11-05 2020-01-10 江苏省肿瘤医院 Cutting stitching instrument suitable for minimally invasive surgery
CN110664449B (en) * 2019-11-05 2023-08-11 江苏省肿瘤医院 Cutting stitching instrument suitable for minimally invasive surgery
CN112914644A (en) * 2021-01-25 2021-06-08 重庆迈科唯医疗科技有限公司 Endoscope anastomat
CN112914644B (en) * 2021-01-25 2022-05-17 重庆迈科唯医疗科技有限公司 Endoscope anastomat

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