CN209404857U - Disposable linear anastomat - Google Patents

Abstract

The utility model belongs to operation the field of medical instrument technology, more particularly to a kind of disposable linear anastomat, including closure insurance institution, firing safety mechanism and locking mechanism, closure insurance institution includes the adjusting nut for insuring push plate and being threaded in side plate rear end, supporting plate is rotatably connected with adjusting nut, and limiting groove is offered on adjusting nut, and insurance push plate sliding is set inside the shell, when insuring push plate towards when adjusting nut sliding, limiting groove is inserted into its rear end；Firing safety mechanism includes the safety block with the first card slot, safety block is rotatably arranged on side plate, spring leaf is equipped between safety block and side plate, the grab with the cooperation of the first card slot is fixed in push plate, positive stop lug boss is extended on supporting plate, when side plate is mobile to resist-nailed seat direction, positive stop lug boss pushes safety block rotation that grab is made to be detached from the first card slot；Locking mechanism includes latch components, when firing handle driving push plate locks firing handle close to the mobile rear catch component of resist-nailed seat.

Description

Disposable linear anastomat

Technical field

The utility model belongs to operation the field of medical instrument technology more particularly to a kind of disposable linear type is coincide Device.

Background technique

Linear anastomat is also known as alimentary canal closer, be it is a kind of can be by the staple of multiple arrangements that intermesh organizationally Be in line the instrument hammered into, and is widely used and substitutes one of the instrument of manual straight line stitching instrument, be mainly used for suture close stomach, Duodenum, small intestine, colon stump, for holostrome eversion type suture.

Current disposable linear anastomat mainly includes resist-nailed seat component and mobile body portion, mobile body portion packet Include nail bin.Turn adjusting nut makes moving body drive nail bin mobile to resist-nailed seat, after reaching certain area, just holds with a firm grip and fire hand Anastomosis staple is released nail bin surface until molding by handle.Due to general stapler, there is no limit such as specially for the turn of adjusting nut Adjusting nut mechanism disclosed in benefit 201020638425.2, if accidentally turn adjusting nut, even if this situation will lead to nail bin shifting It moves in place, anastomosis staple does not also form after percussion, leads to operative failure；It and before firing, is all that percussion hand is withstood on by bumper bar Between handle and fixed handle, the risk of midway bumper bar opening is thus had, causes instrument just not fire in place also, leads to hand Art failure；The instrument that percussion is completed does not see whether having used yet, and will cause the case where doctor reuses, has to patient Very big risk.

Utility model content

Do not shift to an earlier date in place to solve the adjusting nut of stapler of the existing technology there is no limit accidentally turn, nail bin is easy Percussion causes operative failure, and the stapler that percussion is completed not to prompt, and fire has the problem of great risk to patient again, The utility model provides a kind of disposable linear anastomat.

In order to solve the above technical problems, technical solution used by the utility model is as follows, a kind of disposable straight line Type stapler, including execution unit, support part, operating member, securing member and shell, the execution unit include supporting nail Seat, nail bin and the mobile pushing slice of nail being arranged in nail bin；The operating member includes fixed handle and is rotatably arranged on side plate Firing handle；The support part includes the supporting plate positioned at the side plate of push plate two sides and positioned at side plate two sides, the push plate Front end be fixedly connected with pushing slice of nail, the rear end of the push plate is connected with firing handle, and the front end of the side plate and nail bin are solid Fixed connection, the front end of the supporting plate are fixedly connected with resist-nailed seat, and the rear end of the supporting plate is fixedly connected with shell, described to push away Plate drives pushing slice of nail to push the anastomosis staple in nail bin to resist-nailed seat；

The securing member includes closure insurance institution, firing safety mechanism and locking mechanism, the closure insurance institution Including the adjusting nut for insuring push plate and being threaded in side plate rear end, the supporting plate is rotatably connected with adjusting nut, Limiting groove is offered on the adjusting nut, the insurance push plate is slidably arranged in shell, when the insurance push plate direction When adjusting nut slides, limiting groove is inserted into its rear end；The firing safety mechanism includes the safety block with the first card slot, institute It states safety block to be rotatably arranged on side plate, spring leaf is provided between the safety block and side plate, is fixedly installed in the push plate There is the grab with the cooperation of the first card slot, be extended with positive stop lug boss on the supporting plate, when the side plate is mobile to resist-nailed seat direction When, positive stop lug boss pushes safety block rotation that grab is made to be detached from the first card slot；The locking mechanism includes latch components, when percussion hand Handle drives push plate to lock firing handle close to the mobile rear catch component of resist-nailed seat.

Preferably, the latch components include hook and button, the hook is fixed in firing handle, described The second card slot with hook cooperation is offered on button, the both ends of the button are slidably arranged in fixed handle and side plate respectively On, setting has elastic component between the button and fixed handle, and hook is detached from the second card slot when push button.Press percussion hand Handle, firing handle drives push plate to drive pushing slice of nail mobile to nail bin, and after complete percussion, i.e. pushing slice of nail is by the anastomosis staple in nail bin Resist-nailed seat is pushed into until hook is caught in the second card slot, and prevention firing handle reset should to prompt operator after staple formation Stapler has used, and operator makes hook be detached from the second card slot by push button, and firing handle resets, and eliminates because of mistakenly hit again The risk of patient harm is sent out, hook locking component is simple and effective, and intuitive easy to operate.

Preferably, the two sides of the safety block are outward extended with pressing, the positive stop lug boss is downwardly and toward nail bin Inclination, the positive stop lug boss push safety block rotation that grab is made to be detached from the first card slot by pushing pressing.

Preferably, the closure insurance institution further includes positioning pin and positioning pin button, guiding is provided on the side plate Slideway, one end of the positioning pin slide through guide slide, and the other end of the positioning pin is fixedly connected with positioning pin button, institute The two sides for stating positioning pin button are outward extended with guide ledges, run through to have on the shell and slide with the guiding of guide ledges cooperation Slot；Positioning convex platform has been extended downwardly on the positioning pin button, is offered in the safety block push plate and is determined with what positioning convex platform cooperated Position groove offers the guiding groove with insurance push plate cooperation on the shell.The setting of positioning pin and positioning pin button, which improves, to be protected The guiding accuracy of dangerous push plate is effectively prevented from firing safety mechanism failure, keeps firing safety mechanism safe and reliable.

Preferably, the closure insurance institution further includes the N-shaped push button being slidably arranged on shell, the two of the push button Side offers the mounting hole with guide ledges cooperation.It is moved easily push button.

Further, the rear end of the side plate is threadedly coupled by adjusting screw rod with adjusting nut, the adjusting screw rod Front end is outward extended with fixing lug boss, and the rear end of the side plate offers the fixation hole with fixing lug boss cooperation.Turn adjusts spiral shell Mother, adjusting nut drive side plate mobile close to or far from resist-nailed seat, and structure is simple, convenient for assembly.

Further, briquetting is fixedly installed on the supporting plate, the insurance push plate slides through briquetting.Briquetting plays The effect for pushing down insurance push plate prevents insurance push plate to be detached from its motion profile, further increases the reliability of firing safety mechanism.

Further, the supporting plate and adjusting nut are rotatably connected by fixing piece, one end of the fixing piece It is fixedly connected with supporting plate, the other end offers the arc-shaped concave with adjusting nut cooperation.Adjusting nut and fixing piece rotate Cooperation, adjusting nut driving side plate is mobile when turn adjusting nut and supporting plate is motionless, and simple and reliable for structure, it is convenient to operate.

Further, the firing safety mechanism further includes the instruction component for showing nail bin position, the key group Part includes indicator and torsional spring, and the indicator is rotatably arranged on side plate, and briquetting and fixing piece pass through step pin and be fixed on On supporting plate, the quantity of the step pin is three, and the torsional spring is set on one of them described step pin, the torsional spring One end is resisted against in indicator, and the other end of the torsional spring is resisted against on briquetting.When side plate is moved forward and backward, side plate drives instruction Needle is moved forward and backward, and indicator is rotated under the rebound effect of torsional spring, i.e., cleverly converted the back-and-forth motion of indicator to It is dynamic, it is when indicator shows that nail bin and resist-nailed seat reach specified gap, i.e., internal to show that side plate drives the shift position of nail bin The positive stop lug boss of supporting plate pushed safety block safety block rotation grab made to be detached from the first card slot, prompt operator at this time can be with Firing handle is pressed, firing handle successively drives push plate and pushing slice of nail mobile, and pushing slice of nail releases the anastomosis staple in nail bin, instruction When the more intuitive prompt operator of component carries out the percussion operation of anastomosis staple, more convenient safety.

Further, the support part further includes partition and fixed pin, and the partition is located at the two sides of push plate, and described Partition is located in side plate, and the side plate, partition and the both ends of push plate offer kidney slot, and the fixed pin passes through kidney slot point Side plate, partition and push plate are not fixed on supporting plate.The setting of partition plays guiding role to push plate, improves the guiding of push plate Precision effectively improves push plate driving pushing slice of nail and nail bin cooperation for anastomosis staple in nail bin and releases molding quality.

The utility model has the advantages that operating member may be implemented in the support part of the disposable linear anastomat of the utility model Being reliably connected between execution unit, wherein supporting plate can connect resist-nailed seat and shell, while provide for the movement of side plate Support and guiding；When positioning pin button pushes forward, insurance push plate is driven to travel forward, is adjusted when the end of insurance push plate is detached from When saving the limiting groove of nut, can with turn adjusting nut, push side strip nail bin closure, when nail bin and resist-nailed seat reach rule When fixed gap, the positive stop lug boss on supporting plate presses down the pressing on safety block, so that grab is detached from the first card slot, presses at this time Firing handle, firing handle push pushing slice of nail to travel forward with push plate, and after complete percussion, the button on fixed handle is lockked Hook in firing handle.After adopting the above technical scheme, do not push positioning pin button, insurance push plate without departing from adjusting nut, Adjusting nut just revolves motionless；When nail bin is not closed into certain interval position, safety block is not opened, and firing handle cannot fire；When Completely after percussion, firing handle is lockable, and very explicitly prompt operator, this instrument had been used, and relatively reliable can be mentioned The safety of height operation.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the disposable linear anastomat of the utility model；

Fig. 2 is the structural exploded view signal of the side plate and adjusting screw rod of the disposable linear anastomat of the utility model Figure；

Fig. 3 is the safety block assembling schematic diagram of the disposable linear anastomat of the utility model；

Fig. 4 is the enlarged diagram of A in Fig. 3；

Fig. 5 is the structural exploded view schematic diagram of the support part of the disposable linear anastomat of the utility model.

Fig. 6 is that the structure that the support part of the disposable linear anastomat of the utility model cooperates with adjusting nut is shown It is intended to.

Fig. 7 is that the structure that the operating member of the disposable linear anastomat of the utility model cooperates with support part is shown It is intended to.

Fig. 8 is the structural representation that the safety block of the disposable linear anastomat of the utility model is in close state Figure.

Fig. 9 is the structural representation in the open state of the safety block of the disposable linear anastomat of the utility model Figure.

Figure 10 is the shell of the disposable linear anastomat of the utility model and the structural representation of support part cooperation Figure.

Figure 11 is the execution unit of the disposable linear anastomat of the utility model and the structure of support part cooperation Schematic diagram.

Figure 12 is the positioning pin button of the disposable linear anastomat of the utility model and the structure of insurance push plate cooperation Schematic diagram.

Figure 13 is the firing handle structural schematic diagram of the disposable linear anastomat of the utility model.

Figure 14 is the nail bin of the disposable linear anastomat of the utility model and the structural schematic diagram of pushing slice of nail cooperation.

Figure 15 is the adjusting nut structural schematic diagram of the disposable linear anastomat of the utility model；

Figure 16 is that the latch components of the disposable linear anastomat of the utility model lock firing handle schematic diagram；

Figure 17 is the hook of B and the schematic cross-sectional view of snap fit in Figure 16；

1-4,1, operating member in figure, 1-1, fixed handle, 1-2, firing handle, 1-3, tension spring ship and resell on another market；2, support sector Part, 2-1, push plate, 2-1-1, grab, 2-1-2, kidney slot, 2-2, side plate, 2-2-1, guide slide, 2-2-2, fixation hole, 2-2- 3, side plate rivet, 2-3, supporting plate, 2-3-1, positive stop lug boss, 2-3-2, pin hole, 2-4, partition, 2-5, fixed pin；3, enforcement division Part, 3-1, resist-nailed seat, 3-2, nail bin, 3-21, pushing slice of nail sliding slot, 3-3, pushing slice of nail, 3-31, protrusion；4, shell, 4-1, guiding are slided Slot, 4-2, guiding groove；5-1, insurance push plate, 5-1-1, positioning groove, 5-2, safety block, 5-2-1, the first card slot, 5-2-2, Pressing, 5-3, spring leaf, 5-4, pin shaft, 5-5, adjusting nut, 5-5-1, limiting groove, 5-6, positioning pin, 5-7, positioning pin button, 5-7-1, guide ledges, 5-7-2, positioning convex platform, 5-8, push button, 5-8-1, mounting hole, 5-9, adjusting screw rod, 5-9-1, fixation are convex Platform, 5-10, fixing piece, 5-11, instruction component, 5-11-1, indicator, 5-11-2, torsional spring, 5-11-3, step pin, 5-12, pressure Block, 5-13, latch components, 5-13-1, hook, 5-13-2, button, 5-13-2-1, the second card slot.

Specific embodiment

Embodiment

As shown in Fig. 1~17, a kind of disposable linear anastomat, including execution unit 3, support part 2, operation Component 1, securing member and shell 4, the execution unit 3 include resist-nailed seat 3-1, nail bin 3-2 and mobile setting in nail bin 3-2 Pushing slice of nail 3-3, have pushing slice of nail sliding slot 3-21 in nail bin 3-2, be outward extended on pushing slice of nail 3-3 and match with pushing slice of nail sliding slot 3-21 The specific structure of the raised 3-31 of conjunction, execution unit disclose in patent document 201210347695.1；The operating member 1 Including fixed handle 1-1 and the firing handle 1-2 being rotatably arranged on side plate 2-2, fixed handle 1-1 is fixed with side plate 2-2, and It is rotatablely connected with firing handle 1-2, tension spring 1-3 is provided between firing handle 1-2 and fixed handle 1-1, firing handle 1-2 is logical The 1-4 and side plate 2-2 and fixed handle 1-1 that ships and resell on another market is crossed to be rotatablely connected；The support part 2 includes positioned at the side of the two sides push plate 2-1 Connect between plate 2-2 and supporting plate 2-3 positioned at the two sides side plate 2-2, side plate 2-2 by the way that at least two side plate rivet 2-2-3 are fixed It connects, the front end of the push plate 2-1 is fixedly connected (after orientation arm is, before 2 direction of support part is) with pushing slice of nail 3-3, described The rear end of push plate 2-1 is connected with firing handle 1-2, and the front end of the side plate 2-2 is fixedly connected with nail bin 3-2, the bracket The front end of plate 2-3 is fixedly connected by nail seat rivet with resist-nailed seat 3-1, the rear end of the supporting plate 2-3 and the fixed company of shell 4 It connects, the push plate 2-1 driving pushing slice of nail 3-3 pushes the anastomosis staple in nail bin 3-2 to resist-nailed seat 3-1, in order to improve push plate 2-1's Guiding accuracy, the support part 2 further include partition 2-4, and the partition 2-4 is located at the two sides of push plate 2-1, and the partition 2- 4 are located in side plate 2-2, and the both ends the supporting plate 2-3 offer pin hole 2-3-2 for wearing fixed pin 2-5, the side plate 2- 2, the both ends of partition 2-4 and push plate 2-1 offer the kidney slot 2-1-2 passed through for fixed pin 2-5, with allow side plate 2-2, every There is opposite sliding between plate 2-4 and push plate 2-1 and supporting plate 2-3 in a certain range, specifically sees patent document Support part disclosed in 201210347695.1.

As shown in Fig. 3,4,8,9,10,11 and 12, the securing member include closure insurance institution, firing safety mechanism and Locking mechanism, the closure insurance institution include insurance push plate (5-1) and the adjusting nut for being threaded in the rear end side plate (2-2) (5-5), the supporting plate 2-3 and adjusting nut 5-5 are rotatably connected, and the rear end of the side plate 2-2 passes through adjusting screw rod 5-9 It is threadedly coupled with adjusting nut 5-5, the front end of the adjusting screw rod 5-9 is outward extended with fixing lug boss 5-9-1, the side plate 2- 2 rear end, which is offered, offers limiting groove on the fixation hole 2-2-2, the adjusting nut 5-5 of fixing lug boss 5-9-1 cooperation 5-5-1, the insurance push plate 5-1 are slidably arranged in shell 4, when the insurance push plate 5-1 is slided towards adjusting nut 5-5 When, limiting groove 5-5-1 is inserted into its rear end, at this time if insurance push plate 5-1, which is not moved forward, is detached from limiting groove 5-5-1, adjusts Section nut 5-5 is unable to turn, that is, stapler cannot be closed at this time, for the ease of mobile insurance push plate 5-1, Yi Jiti The guiding accuracy of height insurance push plate 5-1, the closure insurance institution further includes positioning pin 5-6 and positioning pin button 5-7, the side plate Guide slide 2-2-1 is provided on 2-2, one end of the positioning pin 5-6 slides through guide slide 2-2-1, the positioning pin The other end of 5-6 is fixedly connected with positioning pin button 5-7, and the two sides of the positioning pin button 5-7 are outward extended with guide ledges 5- 7-1, through the guide chute 4-1 having with guide ledges 5-7-1 cooperation on the shell 4；To downward on the positioning pin button 5-7 Stretching has positioning convex platform 5-7-2, and the positioning groove 5- with positioning convex platform 5-7-2 cooperation is offered on the safety block 5-2 push plate 2-1 1-1, the guiding groove 4-2 with insurance push plate 5-1 cooperation is offered on the shell 4, and the closure insurance institution further includes cunning The dynamic N-shaped push button 5-8 being arranged on shell 4, the two sides of the push button 5-8 offer the peace with guide ledges 5-7-1 cooperation Fill hole 5-8-1；The firing safety mechanism includes the safety block 5-2 with the first card slot 5-2-1, and the safety block 5-2 passes through Pin shaft 5-4 is rotatably arranged on side plate 2-2, and spring leaf 5-3, spring leaf 5- are provided between the safety block 5-2 and side plate 2-2 3 provide screen resilience for the rotation of safety block 5-2, and the grab with the first card slot 5-2-1 cooperation is fixedly installed on the push plate 2-1 It is extended with positive stop lug boss 2-3-1 on 2-1-1, the supporting plate 2-3, when the side plate 2-2 is mobile to the direction resist-nailed seat 3-1, nail When storehouse 3-2 reaches firing position, positive stop lug boss 2-3-1 pushes safety block 5-2 rotation that grab 2-1-1 is made to be detached from the first card slot 5-2- 1, in order to improve the reliability that grab 2-1-1 is detached from the first card slot 5-2-1, the two sides of the safety block 5-2 are outward extended with Pressing 5-2-2, the positive stop lug boss 2-3-1 are tilted downwardly and toward nail bin 3-2, and the positive stop lug boss 2-3-1 is by pushing pressure Pin 5-2-2 pushes safety block 5-2 rotation that grab 2-1-1 is made to be detached from the first card slot 5-2-1；

As shown in Fig. 6,7,10 and 11, briquetting 5-12, the insurance push plate 5-1 are fixedly installed on the supporting plate 2-3 Slide through briquetting 5-12；The supporting plate 2-3 and adjusting nut 5-5 is rotatably connected by fixing piece 5-10, described solid The one end for determining part 5-10 is fixedly connected with supporting plate 2-3, and the other end offers the arc-shaped concave with adjusting nut 5-5 cooperation. For the ease of intuitively showing that nail bin 3-2 arrived firing position, as illustrated in figs. 6 and 10, the firing safety mechanism further includes For showing instruction component 5-11 of the nail bin 3-2 relative to the position resist-nailed seat 3-1, the instruction component 5-11 includes indicator 5- 11-1 and torsional spring 5-11-2, the indicator 5-11-1 are rotatably arranged on side plate 2-2, and briquetting 5-12 and fixing piece 5-10 are logical It crosses step pin 5-11-3 to be fixed on supporting plate 2-3, the quantity of the step pin 5-11-3 is three, the torsional spring 5-11-2 set It is located on one of them described step pin 5-11-3, one end of the torsional spring 5-11-2 is resisted against on indicator 5-11-1, described The other end of torsional spring 5-11-2 is resisted against on briquetting 5-12.

As shown in Fig. 1,7,10,11,13,16 and 17, the locking mechanism includes latch components 5-13, as firing handle 1- 2 driving push plate 2-1 lock firing handle 1-2 close to the mobile rear catch component 5-13 of resist-nailed seat 3-1.The latch components 5-13 Including hook 5-13-1 and button 5-13-2, the hook 5-13-1 is fixed on firing handle 1-2, the button 5- The second card slot 5-13-2-1 with hook 5-13-1 cooperation is offered on 13-2, the both ends of the button 5-13-2 are slided respectively to be set It sets on fixed handle 1-1 and side plate 2-2, is arranged between the button 5-13-2 and fixed handle 1-1 and has elastic component, press Hook 5-13-1 is detached from the second card slot 5-13-2-1 when button 5-13-2.

Working principle is as follows:

Push button 5-8 is moved forward first, and push button 5-8 successively drives positioning pin button 5-7 and positioning pin 5-6 to move forward, fixed Position pin button 5-7 drives insurance push plate 5-1 to move forward, and the rear end of insurance push plate 5-1 is detached from limiting groove 5-5-1 and no longer limits tune The rotation of nut 5-5 is saved, then turn adjusting nut 5-5, adjusting nut 5-5 drive side plate 2-2 to move forward, side plate 2-2 driving Nail bin 3-2 is mobile towards resist-nailed seat 3-1, while the safety block 5-2 on side plate 2-2 is mobile towards positive stop lug boss 2-3-1, works as nail bin When 3-2 and resist-nailed seat 3-1 reach specified gap, positive stop lug boss 2-3-1 pushes safety block 5-2 rotation by pushing pressing 5-2-2 So that grab 2-1-1 is detached from the first card slot 5-2-1, no longer limits the movement of push plate 2-1；

Indicator 5-11-1 is driven to move forward while side plate 2-2 is moved forward, indicator 5-11-1 is in torsional spring 5-11- It is rotated under 2 rebound effect, i.e., cleverly converts rotation for the forward movement of indicator 5-11-1, to show side plate 2- 2 positions for driving nail bin 3-2 mobile, when indicator 5-11-1 shows that nail bin 3-2 and resist-nailed seat 3-1 reach specified gap, i.e., in The positive stop lug boss 2-3-1 of the supporting plate 2-3 in portion, which has pushed safety block 5-2, makes safety block 5-2 rotation grab 2-1-1 be detached from the first card Slot 5-2-1 no longer limits the movement of push plate 2-1, prompts operator that can press percussion at this time by observation indicator 5-11-1 Handle 1-2, firing handle 1-2 successively drive push plate 2-1 and pushing slice of nail 3-3 to move forward, and pushing slice of nail 3-3 and nail bin 3-2 cooperate Push the anastomosis staple in nail bin 3-2 to resist-nailed seat 3-1, until anastomosis staple forms on resist-nailed seat 3-1, i.e., completely after percussion, hits Hook 5-13-1 on hair handle 1-2 is caught in the second card slot 5-13-2-1, prevents firing handle 1-2 from resetting, to prompt operator The stapler has used, and operator makes hook 5-13-1 be detached from the second card slot 5-13-2-1, percussion by push button 5-13-2 Handle 1-2 resets, and eliminates because mistakenly hit sends out the risk of patient harm again.

Claims (10)

1. a kind of disposable linear anastomat, it is characterised in that: including execution unit (3), support part (2), operation Component (1), securing member and shell (4), the execution unit (3) include resist-nailed seat (3-1), nail bin (3-2) and mobile setting Pushing slice of nail (3-3) in nail bin (3-2)；The operating member (1) includes fixed handle (1-1) and is rotatably arranged on side plate Firing handle (1-2) on (2-2)；The support part (2) includes being located at the side plate (2-2) of the two sides push plate (2-1) and being located at The front end of the supporting plate (2-3) of the two sides side plate (2-2), the push plate (2-1) is fixedly connected with pushing slice of nail (3-3), the push plate The rear end of (2-1) is connected with firing handle (1-2), and the front end of the side plate (2-2) is fixedly connected with nail bin (3-2), described The front end of supporting plate (2-3) is fixedly connected with resist-nailed seat (3-1), and the rear end and shell (4) of the supporting plate (2-3) are fixed to be connected It connects, push plate (2-1) driving pushing slice of nail (3-3) pushes the anastomosis staple in nail bin (3-2) to resist-nailed seat (3-1)；

The securing member includes that closure insurance institution, firing safety mechanism and locking mechanism, the closure insurance institution include Insurance push plate (5-1) and the adjusting nut (5-5) for being threaded in the rear end side plate (2-2), the supporting plate (2-3) and adjusting spiral shell Female (5-5) is rotatably connected, and offers limiting groove (5-5-1) on the adjusting nut (5-5), the insurance push plate (5- 1) it is slidably arranged in shell (4), when the insurance push plate (5-1) is slided towards adjusting nut (5-5), its rear end insertion limit Position groove (5-5-1)；The firing safety mechanism includes the safety block (5-2) with the first card slot (5-2-1), the safety block (5-2) is rotatably arranged on side plate (2-2), is provided with spring leaf (5-3), institute between the safety block (5-2) and side plate (2-2) The grab (2-1-1) being fixedly installed on push plate (2-1) with the first card slot (5-2-1) cooperation is stated, is prolonged on the supporting plate (2-3) Stretching has positive stop lug boss (2-3-1), and when the side plate (2-2) is mobile to the resist-nailed seat direction (3-1), positive stop lug boss (2-3-1) is pushed away Dynamic safety block (5-2) rotation makes grab (2-1-1) to be detached from the first card slot (5-2-1)；The locking mechanism includes latch components (5- 13), when firing handle (1-2) drives push plate (2-1) close resist-nailed seat (3-1) mobile rear catch component (5-13) by firing handle (1-2) is lockked.

2. disposable linear anastomat according to claim 1, it is characterised in that: the latch components (5-13) Including hook (5-13-1) and button (5-13-2), the hook (5-13-1) is fixed on firing handle (1-2), described The second card slot (5-13-2-1) with hook (5-13-1) cooperation is offered on button (5-13-2), the button (5-13-2) Both ends are slidably arranged in respectively on fixed handle (1-1) and side plate (2-2), the button (5-13-2) and fixed handle (1-1) Between be arranged and have elastic component, hook (5-13-1) is detached from the second card slot (5-13-2-1) when push button (5-13-2).

3. disposable linear anastomat according to claim 1 or 2, it is characterised in that: the safety block (5-2) Two sides be outward extended with pressing (5-2-2), the positive stop lug boss (2-3-1) downwardly and toward nail bin (3-2) tilt, it is described Positive stop lug boss (2-3-1) pushes safety block (5-2) rotation that grab (2-1-1) is made to be detached from the first card by pushing pressing (5-2-2) Slot (5-2-1).

4. disposable linear anastomat according to claim 1 or 2, it is characterised in that: the closure safety Structure further includes positioning pin (5-6) and positioning pin button (5-7), is provided with guide slide (2-2-1) on the side plate (2-2), described One end of positioning pin (5-6) slides through guide slide (2-2-1), the other end and positioning pin button (5- of the positioning pin (5-6) 7) it is fixedly connected, the two sides of the positioning pin button (5-7) are outward extended with guide ledges (5-7-1), are passed through on the shell (4) It is installed with the guide chute (4-1) with guide ledges (5-7-1) cooperation；Convex has been extended downwardly on the positioning pin button (5-7) Platform (5-7-2) offers the positioning groove (5- with positioning convex platform (5-7-2) cooperation on safety block (5-2) push plate (2-1) 1-1), the guiding groove (4-2) with insurance push plate (5-1) cooperation is offered on the shell (4).

5. disposable linear anastomat according to claim 4, it is characterised in that: the closure insurance institution is also Including the N-shaped push button (5-8) being slidably arranged on shell (4), the two sides of the push button (5-8) offer and guide ledges The mounting hole (5-8-1) of (5-7-1) cooperation.

6. disposable linear anastomat according to claim 1, it is characterised in that: after the side plate (2-2) End is threadedly coupled by adjusting screw rod (5-9) with adjusting nut (5-5), and the front end of the adjusting screw rod (5-9) is outward extended with Fixing lug boss (5-9-1), the rear end of the side plate (2-2) offer the fixation hole (2-2- with fixing lug boss (5-9-1) cooperation 2)。

7. disposable linear anastomat according to claim 1, it is characterised in that: on the supporting plate (2-3) It is fixedly installed briquetting (5-12), the insurance push plate (5-1) slides through briquetting (5-12).

8. disposable linear anastomat according to claim 7, it is characterised in that: the supporting plate (2-3) with Adjusting nut (5-5) is rotatably connected by fixing piece (5-10), one end of the fixing piece (5-10) and supporting plate (2-3) It is fixedly connected, the other end offers the arc-shaped concave with adjusting nut (5-5) cooperation.

9. disposable linear anastomat according to claim 8, it is characterised in that: the firing safety mechanism is also Including for showing the instruction component (5-11) of the position nail bin (3-2), the instruction component (5-11) includes indicator (5-11- 1) it is rotatably arranged on side plate (2-2) with torsional spring (5-11-2), the indicator (5-11-1), briquetting (5-12) and fixing piece (5-10) is fixed on supporting plate (2-3) by step pin (5-11-3), and the quantity of the step pin (5-11-3) is three, The torsional spring (5-11-2) is set on one of them described step pin (5-11-3), one end of the torsional spring (5-11-2) against On indicator (5-11-1), the other end of the torsional spring (5-11-2) is resisted against on briquetting (5-12).

10. disposable linear anastomat according to claim 1, it is characterised in that: the support part (2) is also Including partition (2-4) and fixed pin (2-5), the partition (2-4) is located at the two sides of push plate (2-1), and the position the partition (2-4) In side plate (2-2), the both ends of the side plate (2-2), partition (2-4) and push plate (2-1) offer kidney slot (2-1-2), Side plate (2-2), partition (2-4) and push plate (2-1) are fixed on branch respectively by kidney slot (2-1-2) by the fixed pin (2-5) On frame plate (2-3).