CN209347124U - Medical stapler - Google Patents

Abstract

The utility model provides a kind of Medical stapler, including stapler ontology, including shell, firing lock；It can be along the anvil assembly of the axial movement of stapler ontology；Make firing lock can not cock and the insurance institution that can switch between cock, and insurance institution includes Arming Assembly, have make firing lock be in can not cock first position region and in can cock second position region；Driving member, during anvil assembly proximal movement, anvil assembly acts on driving member, and then drives Arming Assembly from first position region to second position regional movement；Lateral steering structure, to guide Arming Assembly along the transverse movement of stapler ontology；The percussion that doctor carries out anastomosis staple and cutter in the case where anvil assembly is closed not in place can be effectively prevented, cause staple formation bad, even result in the generation of malpractice；The lateral steering structure of guidance Arming Assembly transverse movement, the stability of enhancing Arming Assembly movement are set.

Description

Medical stapler

Technical field

The utility model relates to medical instruments field more particularly to a kind of Medical staplers.

Background technique

Medical stapler is often made when carrying out operation seaming and cutting to physiological tissues such as the alimentary canals such as esophagus, enteron aisle and foreskins Medical instrument, two sections of tissues are containing when coincideing, and portion forms the anastomosis ring of annular within the organization, and Medical stapler can make to perform the operation The body bleeding generated in the process is discharged together with content, and tissue is easier to heal after operation.

The existing Medical stapler for treating alimentary canal, redundant prepuce etc. generally comprises stapler ontology, rotation connects Connect the percussion handle on the stapler ontology and the anvil assembly set on the distal end of the stapler ontology.The stapler Ontology include shell, the nail bin groupware matched with the anvil assembly set on the distal end of the shell, be disposed in the housing with The ejector pin bar of the percussion handle linkage.

When the anvil assembly is closed in place, then the Medical stapler arrival can cock.In the prior art, generally Patient be all feel with oneself judge Medical stapler whether reach can cock, and the Medical stapler reach The percussion of anastomosis staple and cutter can be carried out after cock.

But, on the one hand, patient goes to judge with the feeling of itself and experience completely, and it is not in place to easily lead to anvil assembly closure And cause staple formation bad；On the other hand, some careless or insufficient doctors of experience, can not yet close in the anvil assembly When closing in place, mistakenly hit sends out anastomosis staple and the cutter described, causes staple formation bad, even results in the hair of malpractice It is raw.

In view of this, it is necessary to provide a kind of new Medical staplers to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of Medical staplers.

To realize above-mentioned purpose of utility model, the utility model adopts the following technical solution: a kind of Medical stapler, packet It includes:

Stapler ontology including shell, is equipped in the firing lock on the shell；

Anvil assembly, the anvil assembly can be along the axial movements of the stapler ontology；

The insurance institution being movably arranged between the anvil assembly and the firing lock, the insurance institution make the percussion Mechanism cock and can not can switch between cock, and the insurance institution includes

Arming Assembly is movably arranged in the shell, and have make the firing lock be in can not cock the One band of position and in can cock second position region；

Driving member, be set between the anvil assembly and the Arming Assembly, the anvil assembly proximally direction movement In the process, the anvil assembly acts on the driving member, by driving the drive member, and then drives the Arming Assembly From first position region to second position regional movement；

Lateral steering structure, to guide the Arming Assembly along the stapler ontology laterally in first position region It is moved between the region of the second position.

As the further improved technical solution of the utility model, the lateral steering structure includes being set on the shell The first guide member, and set on the second guide member of the Arming Assembly, first guide member and the second guide member phase Cooperation, so that transverse movement of the Arming Assembly along the stapler ontology.

As the further improved technical solution of the utility model, first guide member is phase with second guide member The sliding slot and sliding block mutually cooperated, the sliding slot are laterally extended along the stapler ontology, and the sliding block is set to the insurance On component.

As the further improved technical solution of the utility model, the insurance institution is equipped with labeling section, the shell It is equipped with and supplies the exposed observation panel to observe the insurance institution present position of the labeling section.

As the further improved technical solution of the utility model, the labeling section includes spaced first labeling section And it is different from the second labeling section of first labeling section, and when the insurance institution is located at first position region, described One labeling section is exposed from the observation panel；When the insurance institution is located at second position region, second labeling section is from institute State observation panel exposure.

As the further improved technical solution of the utility model, first labeling section is red, and the second labeling section is Green.

As the further improved technical solution of the utility model, the labeling section is set on the sliding block.

As the further improved technical solution of the utility model, the first position region is compared to the second position Region is closer to the axle center of the stapler ontology；The Arming Assembly has pedestal, is connected to the pedestal to hit with described The sticking department that hair mechanism matches when the Arming Assembly is located at the first position region, is hit described in the sticking department locking Mechanism is sent out, when the Arming Assembly is located at the second position region, the sticking department unlocks the firing lock.

As the further improved technical solution of the utility model, the firing lock includes being movably arranged in the shell Ejector pin bar, the percussion handle that is pivotally connected on the shell, the ejector pin bar can be along the axial direction of the stapler ontology Movement；The second position region is compared to the first position region closer to the axle center of the stapler ontology, the guarantor When dangerous component is located at the first position region, not linkage between the percussion handle and the ejector pin bar, the insurance group When part is located at second position region, linkage between the percussion handle and the ejector pin bar.

As the further improved technical solution of the utility model, the ejector pin bar, percussion handle be axially spaced and phase To the first convergence part, the second convergence part is provided with, guide channel is formed between first convergence part and the second convergence part；Institute When stating Arming Assembly and being located at the first position region, the Arming Assembly is not in the guide channel, in the insurance group When part is located at second position region, at least partly structure of the Arming Assembly enters the guide channel to be connected the ejector pin Bar and percussion handle.

As the further improved technical solution of the utility model, the Arming Assembly, which has, is movably connected on the shell Pedestal, the lateral steering structure be set to the pedestal on, with guide the pedestal along the stapler ontology transverse direction fortune It is dynamic.

As the further improved technical solution of the utility model, the Arming Assembly also has and pedestal cooperation STATEMENT OF FEDERALLY SPONSORED, and the STATEMENT OF FEDERALLY SPONSORED can be along the axial movement of the stapler ontology；In the anvil assembly, proximally direction is mobile In the process, the anvil assembly acts on the driving member, drives the pedestal to laterally move by the driving member, the base Seat pushes the STATEMENT OF FEDERALLY SPONSORED, protrudes into at least partly structure of the STATEMENT OF FEDERALLY SPONSORED in the guide channel.

As the further improved technical solution of the utility model, the driving member, which has to match with the anvil assembly, to be set The support division set, the drive rod proximally extended from the support division, the pedestal and the drive rod inclined-plane cooperate, to drive The pedestal is to second position regional movement.

As the further improved technical solution of the utility model, the insurance institution further includes resetting-mechanism, described multiple Position mechanism drives the Arming Assembly from second position region to first position regional movement.

As the further improved technical solution of the utility model, the Medical stapler is anastomat for circumcision, institute The distal end of anvil assembly is stated equipped with the glans penis chamber for accommodating glans penis.

The beneficial effects of the utility model are: the Medical stapler in the utility model, by the way that insurance institution is arranged, only The anvil assembly closure in place when, the insurance institution can just make the firing lock be in can cock, can be effective It prevents doctor from carrying out the percussion of the anastomosis staple and cutter in the case where the anvil assembly is closed not in place, leads to anastomosis staple It forms bad, even results in the generation of malpractice；Meanwhile the cross for guiding the Arming Assembly along the stapler ontology is set To the lateral steering structure of movement, enhance the stability of the Arming Assembly movement.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the Medical stapler in the utility model first embodiment.

Fig. 2 is the structural schematic diagram of another angle of Medical stapler shown in FIG. 1.

Fig. 3 be Medical stapler in Fig. 2 anvil assembly it is not closed in place when A-A to cross-sectional view.

Fig. 4 is the enlarged drawing at the B in Fig. 3.

Fig. 5 is the structural schematic diagram of the insurance institution in Fig. 4.

Fig. 6 is the structural schematic diagram after Medical stapler removal shell shown in FIG. 1.

Fig. 7 is the structural schematic diagram of the ejector pin bar in Medical stapler shown in FIG. 1.

Fig. 8 be Medical stapler in Fig. 2 anvil assembly closure in place, and hold the A-A after handle to cross-sectional view.

Fig. 9 be Medical stapler in Fig. 2 anvil assembly closure in place after A-A to cross-sectional view.

Figure 10 be Medical stapler in Fig. 2 anvil assembly closure in place, and hold the A-A after handle to cross-sectional view.

Figure 11 is the structural schematic diagram of the Medical stapler in the utility model second embodiment.

Figure 12 be Medical stapler in Figure 11 anvil assembly it is not closed in place when C-C to cross-sectional view.

Figure 13 is the enlarged drawing at the D in Figure 12.

Figure 14 is the structural schematic diagram of the insurance institution in Figure 11.

Figure 15 be Medical stapler in Figure 11 anvil assembly closure in place when C-C to cross-sectional view.

Specific embodiment

The utility model is described in detail below with reference to each embodiment shown in the drawings, please refers to Fig. 1 to figure It is the better embodiment of the utility model shown in 15.But it should be stated that these embodiments are not to the utility model Limitation, those of ordinary skill in the art according to these embodiments made by equivalent transformation in function, method or structure Or substitution, it belongs within the protection scope of the utility model.

In the utility model it is described expression position and direction word, be using equipment operator as reference, it is close One end of equipment operator is proximal end, and one end far from equipment operator is distal end；Axial direction in the utility model is finger Length direction, laterally refer to perpendicular to the axially direction.In addition, the term first, second in the utility model is equal only For descriptive purposes, it is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic Amount.

It please join shown in Fig. 1 to Figure 10, be the Medical stapler 100 in the utility model first embodiment, it is described medical Stapler 100 is used to for multiple anastomosis staples being applied to the physiological tissue of human body, while cutting corresponding physiological tissue.

Medical stapler 100 in the utility model is circular-pipe anastomat, with the packet for implementing Wrapping annulus cuts operation It is made specific elaboration for skin circumcision stapler, life of the anastomat for circumcision multiple anastomosis staples to be applied to human body It manages on tissue (herein referring to foreskin), while cutting corresponding physiological tissue.But it should be stated that in embodiment disclosed below Related skill spirit can be alternatively applied on the stapler of other forms, such as the kiss of the tubular type with double handle Clutch.

The anastomat for circumcision 100 includes stapler ontology 1, is axially moveably connected to the stapler ontology Anvil assembly 2 on 1 and the insurance institution 3 being movably arranged in the stapler ontology 1.

The stapler ontology 1 include shell 11, be equipped on the shell 11 firing lock, be set to the shell The nail bin groupware 14 of the distal end of body 11, set on the proximal end of the shell 11 to drive the anvil assembly 2 along the stapler ontology 1 Axial movement knob 15.

Preferably, the shell 11 is spliced to form by two sub- shells.

The firing lock includes the ejector pin bar 12 being movably arranged in the shell 11, is pivotally connected on the shell 11 Percussion handle 13, the ejector pin bar 12 can be along the axial movement of the stapler ontology 1, to act on the nail bin groupware 14, realize the percussion of the anastomosis staple and/or cutter.

In present embodiment, the opposite sides of the shell 11 is symmetrical arranged that there are two the percussion handles 13, but not with This is limited, and the percussion handle 13 can also only be arranged.

It please join shown in Fig. 3, the nail bin groupware 14 includes set on the nail barrel 141 of the distal end of the shell 11, set on described Pushing slice of nail 142 in nail barrel 141, the cutter on the pushing slice of nail 142, the nail bin set on the distal end of the nail barrel 141 143.The structure of each component and mutual matching relationship are that this field is existing in the nail bin groupware 14, in this, It repeats no more.

The proximal end of the pushing slice of nail 142 is connect with the distal end of the ejector pin bar 12, so that the ejector pin bar 12 is able to drive The pushing slice of nail 142 moves synchronously.

Further, the anvil assembly 2 includes the anvil block 21 matched with the nail bin groupware 14, is connected to the anvil block The anvil axis 22 of 21 proximal end, the anvil axis 22 are arranged in the stapler ontology 1, and the proximal threads connection of the anvil axis 22 In on the knob 15, by rotating the knob 15, drive the anvil assembly 2 along the axial movement of the stapler ontology 1, So that the anvil block 21 is moved to the direction close to or far from the nail bin groupware 14, and when the anvil assembly 2 is closed in place, institute It states anvil block 21 and the nail bin 143 clamps physiological tissue, be convenient for subsequent identical cutting, and can be improved match result.

In a specific embodiment, the anvil axis 22 includes the anvil shaft body 221 and screw rod 222 of subsection setup, institute It states anvil shaft body 221 to be fixedly connected on the anvil block 21, the screw rod 222 connects the anvil shaft body 221 and the knob 15.Certainly, it is not limited thereto, the anvil shaft body 221 can also be wholely set with the screw rod 222.

It is understood that in the embodiment that the Medical stapler is anastomat for circumcision, the anvil assembly 2 Distal end be additionally provided with the glans penis chamber for accommodating glans penis.

The insurance institution 3 is set between the anvil assembly 2 and the firing lock along axial, and the insurance institution 3 has There is the Arming Assembly 31 being movably arranged in the shell 11, be set between the anvil assembly 2 and the Arming Assembly 31 along axial Driving member 32.

The Arming Assembly 31 can be in first position region and second position regional movement, at the Arming Assembly 31 When the region of first position, the firing lock be in can not cock, be located at second position area in the Arming Assembly 31 When domain, the firing lock is in can cock.

During proximally direction moves the anvil assembly 2, the anvil assembly 2 acts on the driving member 32, and Drive the Arming Assembly 31 from first position region to second position regional movement by the driving member 32, in the anvil When component 2 is closed in place, the Arming Assembly 31 moves to second position region, and shape can be fired by being in the firing lock State is convenient for subsequent identical cutting.That is, the firing lock can be hit only when the anvil assembly 2 is closed in place Shipping is dynamic, and doctor can be effectively prevented and hold percussion handle 13 in the case where the anvil assembly 2 is closed not in place, carry out identical The percussion of nail and cutter, causes staple formation bad, even results in the generation of malpractice.

The first position region and the second position region are arranged along the transverse direction of the stapler ontology 1, described When 2 proximal movement of anvil assembly, drives the driving member 32 along axial proximal movement, driven by the driving member 32 described Arming Assembly 31 is from first position region transversely to second position regional movement.

Further, the insurance institution 3 further includes to guide the Arming Assembly 31 along the stapler ontology 1 The lateral steering structure 4 of transverse movement enhances the stability that the Arming Assembly 31 moves, enhances the guarantor of the Arming Assembly 31 Dangerous effect.

It is understood that the lateral steering structure 4 is set between the Arming Assembly 31 and the shell 11, and The lateral steering structure 4 includes the first guide member on the shell and second on the Arming Assembly 31 Guide member, first guide member are matched with second guide member, so that the Arming Assembly 31 is along the stapler sheet The transverse movement of body 1.

In a specific embodiment, set between the Arming Assembly 31 and the shell 11 there are two being symmetrically set The lateral steering structure 4, the stability that the Arming Assembly 31 transversely moves is further enhanced, certainly, not with this It is limited, the lateral steering structure 4 only can also be set in the side of the Arming Assembly 31.

In a specific embodiment, first guide member and second guide member be mutually matched sliding slot 41 with And sliding block 42, being laterally extended along the stapler ontology 1 of sliding slot 41, by the Arming Assembly 31 along described laterally sliding It is dynamic to be connected on the shell 11.Certainly, it is not limited thereto, it is to be understood that as long as the lateral steering structure 4 is arranged It is connected on the shell 11 for the Arming Assembly 31 can be slid along the transverse direction.

In present embodiment, the sliding block 42 is set on the Arming Assembly 31, and the sliding slot 41 is set to the shell 11 On, it certainly, is not limited thereto, for example, the sliding block 42 can be convexly equipped on the shell 11, at this point, the sliding slot 41 is set In on the Arming Assembly 31.

Further, the insurance institution 3 is equipped with labeling section 34, and the shell 11 is equipped with for outside the labeling section 34 Reveal to observe the observation panel 111 of the location of described insurance institution 3, thus, medical staff can pass through the observation panel 111 It is so intuitive that identify the position of the insurance institution 3, to judge whether the anvil assembly 2 is closed in place.

In present embodiment, the labeling section 34 includes spaced first labeling section 341 and is different from described the Second labeling section 342 of one labeling section 341, when the insurance institution 3 is located at first position region, first labeling section 341 is exposed from the observation panel 111；When the insurance institution 3 is located at second position region, second labeling section 342 is certainly The observation panel 111 is exposed, thus, medical staff can intuitively identify the insurance institution 3 by the observation panel 111 Position, to judge whether the anvil assembly 2 is closed in place.

In a specific embodiment, first labeling section 341 is red, and the second labeling section 342 is green；Certainly, Be not limited to that, can also be distinguished by other colors or other modes, such as pattern etc. first labeling section 341 with Second labeling section 342.

In present embodiment, the labeling section 34 is set on the Arming Assembly 31, at this point, first labeling section 341 And second labeling section 342 is laterally spaced is set on the Arming Assembly 31, the Arming Assembly 31 transversely When movement, the first labeling section 341 or the second labeling section 342 can be made to expose to the observation panel 111.Certainly, not with this It is limited, for example, the labeling section 34 can also be set on the driving member 32, at this point, first labeling section 341 and institute State that the second labeling section 342 is axially spaced to be set on the driving member 32, thus, the driving member 32 axially movable When, the first labeling section 341 or the second labeling section 342 can be made from the observation panel 111 exposure.

Further, the Arming Assembly 31 has the pedestal 311 for being movably connected on the shell 11, and the pedestal 311 can be along the transverse movement of the stapler ontology 1.The pedestal 311 is matched with the driving member 32, in the anvil group When 2 proximal movement of part, the anvil assembly 2 drives 32 proximal movement of driving member, and the driving member 32 drives the base Seat 311 is from first position region transversely to second position regional movement.

In a specific embodiment, the labeling section 34 be set to the pedestal 311 on, first labeling section 341 with And second labeling section 342 is laterally spaced is set on the pedestal 311.Certainly, it is not limited thereto, it is possible to understand that It is the setting of the labeling section 34, as long as medical staff can be made intuitively to identify the insurance by the observation panel 111 The position of mechanism 3.

In present embodiment, the lateral steering structure 4 is set to the pedestal 311 between the shell 11, with guidance The pedestal 311 enables the driving member 32 to drive the Arming Assembly 31 along the transverse movement of the stapler ontology 1 Transversely moved between first position region and second position region.Certainly, it is not limited thereto, it is to be understood that institute Stating lateral steering structure can also be set at other positions of the Arming Assembly 31, as long as can be realized the guidance insurance group Part 31 transversely moves between first position region and second position region.

In preferred embodiment, the sliding block 42 is set on the pedestal 311, and the labeling section 34 is set to institute It states on sliding block 42, it is to be understood that at this point, first labeling section 341 and second labeling section 342 are laterally spaced It is set on the sliding block 42, simplifies the structure of the pedestal 311.

In present embodiment, the percussion handle 13 include its be pivotally connected with the shell 11 rotation section 131, to Drive the second convergence part 132 of the ejector pin bar 12 and with the operation portion 133 operated for medical staff.In the anvil group When part 2 is closed in place, the percussion handle 13 is held, second convergence part 132, which directly or indirectly supports, acts on described push away Nail rod 12 realizes the percussion of the anastomat for circumcision 100 to drive the ejector pin bar 12 distally to move.It can be with Understand, the linked manner between the percussion handle 13 and the ejector pin bar 12 is not limited to this.

In present embodiment, second convergence part 132 supports indirectly acts on the ejector pin bar 12, the ejector pin bar 12 Be equipped with the first convergence part 121, have between the percussion handle 13 and the ejector pin bar 12 first state that does not link and Second state of linkage.It is understood that for supported indirectly by the second convergence part 132 push the ejector pin bar 12 into In the embodiment of row percussion movement, above-mentioned firing lock be in can not cock when, that is, refer to the percussion handle 13 with In the first state not linked between the ejector pin bar 12, at this point, holding the percussion handle 13 makes the percussion handle 13 During rotation, second convergence part 132 can not directly or indirectly act on the ejector pin bar 12 always, thus described Ejector pin bar 12 is not available for percussion movement；Correspondingly, above-mentioned firing lock be in can cock when, that is, refer to the percussion handle Hand 13 is in the second state of linkage in the ejector pin bar 12, at this point, the percussion handle 13 is held, the percussion handle 13 During rotation, the meeting of the second convergence part 132 indirectly-acting fires the ejector pin bar 12 in the ejector pin bar 12 Movement.

And in present embodiment, first convergence part 121 is set to the proximal end of the ejector pin bar 12, certainly, not with this It is limited, first convergence part 121 may be disposed at the axial any position of the ejector pin bar 12, as long as in the percussion handle When hand 13 and the ejector pin bar 12 are in the second state, the percussion handle 3 is rotated, it can be by acting on first rank Socket part 121 drives 12 distal movement of ejector pin bar.

In a specific embodiment, has between the percussion handle 13 and the ejector pin bar 12 and allow bit space, that is, institute The axially spaced-apart that percussion handle 13 and the ejector pin bar 12 are stated along the stapler ontology 1 is arranged, it is to be understood that described to allow Bit space is between first convergence part 121 and the second convergence part 132.

Please join shown in Fig. 8, the anvil assembly 2 it is not closed in place when, hold the percussion handle 13, make the percussion handle When hand 13 rotates, second convergence part 132 is moved in described allow in bit space, can not directly or indirectly support effect always In the ejector pin bar 12, so that the ejector pin bar 12 is not available for percussion movement, it is to be understood that at this point, the percussion handle Hand 13 and the ejector pin bar 12 are in first state.

In present embodiment, the Arming Assembly 31 is that the percussion handle 13 and the ejector pin bar 12 can be made first The linkage unit switched between state and the second state.It is understood that for allowing the embodiment of bit space described in setting In, when the Arming Assembly 31 is located at first position region, the Arming Assembly 31 allows bit space far from described, thus, institute It states percussion handle 13 and is in empty cock, that is, when rotating the percussion handle 13, second rank of the percussion handle 13 Socket part 132 can not directly or indirectly act on the ejector pin bar 12 always, so that the stapler can not be fired, at this point, institute It states percussion handle 13 and the ejector pin bar 12 is in first state；When the Arming Assembly 31 is located at second position region, institute State Arming Assembly 31 at least partly structure protrude into it is described allow in bit space, so that the percussion handle 13 is passed through the insurance At least partly structure indirectly-acting of component 31 in the ejector pin bar 12, at this time the percussion handle 13 at the ejector pin bar 12 In the second state, the ejector pin bar 12 can be driven to move towards distal direction to fire by rotating the percussion handle 13 State stapler.

Further, the first position region and the second position region are arranged along the transverse direction of the stapler ontology 1 Cloth, and in present embodiment defines the second position region relative to the first position region closer to the stapler The axle center of ontology 1, that is, the second position region is relative to the first position region closer to the ejector pin bar 12.Certainly, It is not limited thereto.

Specifically, the Arming Assembly 31 also has the STATEMENT OF FEDERALLY SPONSORED 312 matched with the pedestal 311, in the anvil group For part 2 proximally during the movement of direction, the anvil assembly 2 acts on the driving member 32, drives the pedestal 311 along cross To movement, the pedestal 311 pushes the STATEMENT OF FEDERALLY SPONSORED 312, and at least partly structure of the STATEMENT OF FEDERALLY SPONSORED 312 is made to protrude into the resigning In space, so that the percussion handle 13 and the ejector pin bar 12 switch to the second state, that is, the percussion handle 13 can lead to Cross the STATEMENT OF FEDERALLY SPONSORED 312 drives the ejector pin bar 12 to carry out percussion campaign indirectly, is convenient for subsequent percussion.

To join in Fig. 4-specific embodiment shown in fig. 5, the STATEMENT OF FEDERALLY SPONSORED 312 is movably connected on the pedestal 311, And the STATEMENT OF FEDERALLY SPONSORED 312 can be located at second position area in the Arming Assembly 31 along the axial movement of the stapler ontology 1 When domain, at least partly structure of the STATEMENT OF FEDERALLY SPONSORED 312 be located at it is described allow in bit space, be connected first convergence part 121 with And second convergence part 132.The percussion handle 13 is held, the percussion handle 13 pushes the STATEMENT OF FEDERALLY SPONSORED 312 distally Movement, the STATEMENT OF FEDERALLY SPONSORED 312 drive the ejector pin bar 12 distally to move, to fire the anastomosis staple and and cutter. Certainly, however it is not limited to which this, the STATEMENT OF FEDERALLY SPONSORED 312 can also be movably connected on the ejector pin bar 12, it is to be understood that described As long as STATEMENT OF FEDERALLY SPONSORED 312 is configured to transversely move between the first position region and second position region, and energy Enough distally movements synchronous with the ejector pin bar 12.

Further, guide channel 18, the guiding are formed between first convergence part 121 and the second convergence part 132 Channel 18 is allowed described in bit space, and the Arming Assembly 31 moves between first position region and second position region When, the guide channel 18 guides the STATEMENT OF FEDERALLY SPONSORED 312 along the transverse movement of the stapler ontology 1, and limits the linkage The position of part 312 makes the STATEMENT OF FEDERALLY SPONSORED 312 between the first convergence part 121 and the second convergence part 132, thus, in the guarantor When dangerous component 31 is located at second position region, the percussion handle 13 can act on the ejector pin bar by the STATEMENT OF FEDERALLY SPONSORED 312 12, that is, the percussion handle 13 is made to be in the second state with the ejector pin bar 12；It is located at described second in the Arming Assembly 31 When the band of position, the guide channel 18 accommodates at least partly described STATEMENT OF FEDERALLY SPONSORED 312, and is rotating the percussion handle 13 In the process, the guide channel 18 can limit the STATEMENT OF FEDERALLY SPONSORED 312 and shake, and keep percussion movement more stable.

It is understood that the STATEMENT OF FEDERALLY SPONSORED 312 is located at institute when the Arming Assembly 31 is located at first position region 18 outside of guide channel is stated, thus, between first convergence part 121 and second convergence part 132 separately, the percussion Handle 13 and the ejector pin bar 12 are in first state.

Join in specific embodiment shown in Fig. 7, first convergence part 121 has positioned at the circumferentially opposed two sides Wall extension 122, along axial direction to 132 projection of the second convergence part, the guide channel 18 is formed in described the wall extension 122 Between wall extension 122.Certainly, it is not limited thereto.

It is understood that the anastomat for circumcision 100 has in embodiment of the tool there are two percussion handle 13 There are two the insurance institution 3 matched respectively with the percussion handle 13, two insurance institutions 3 are divided into the ejector pin bar 12 opposite sides, and two insurance institutions 3 are wholely set, to enhance the effect of the insurance institution 3.Certainly, not It can be set as the case may be as limit for example, the particular number of the insurance institution 3 is not limited to above-mentioned two It sets；Or two insurance institutions 3 can be respectively set.

Please join shown in Figure 11-15, be the utility model in Medical stapler second embodiment, the embodiment with The difference of first embodiment is: second convergence part 132, which directly supports, acts on the ejector pin bar 12, in the insurance When component 31 is located at first position region, the anvil assembly 2 is not closed in place, at this point, the Arming Assembly 31 locks described hit Send out mechanism, at this point, the firing lock be in can not cock；When the Arming Assembly 31 is located at second position region, The Arming Assembly 31 unlocks the firing lock, at this point, the firing lock be in can cock.

In present embodiment, defines the first position region and coincide relative to the second position region closer to described The axle center of device ontology 1, that is, the first position region is relative to the second position region closer to the ejector pin bar 12.

Further, the Arming Assembly 31 also has from the pedestal 311 towards the locking of the firing lock projection Portion 314.

In present embodiment, when the Arming Assembly 31 is located at first position region, the sticking department 314 locks described Ejector pin bar 12 limits 12 distal movement of ejector pin bar, it is to be understood that at this point, even if holding the percussion handle 13, Because the sticking department 314 limits the percussion handle that the ejector pin bar 12 is distally moved, therefore is held on the ejector pin bar 12 Hand 13 can not also rotate.

Certainly, however it is not limited to which this, when the Arming Assembly 31 is located at first position region, the sticking department 314 can also be with It is set as locking the percussion handle 13, limits the percussion handle 13 and rotate, so that the ejector pin bar 12 be prevented to be hit indirectly Hair.

In present embodiment, the ejector pin bar 12 also has the holding block 123 matched with the sticking department 314, in institute State in 2 closing course of anvil assembly, the Arming Assembly 31 is located at first position region, and the sticking department 314 be held in it is described The distal end of holding block 123 locks the ejector pin bar 12, prevents the percussion campaign of the ejector pin bar 12.

It is, of course, understood that the lock mode that the sticking department 314 locks the ejector pin bar 12 is not limited to this, For example, the sticking department 314 may be configured as groove, and when the Arming Assembly 31 is located at first position region, the holding block 123 at least partly structure is contained in the sticking department 314 (groove), to lock the ejector pin bar 12；Or it is pushed away described Limiting slot is directly set in nail rod 12, when the Arming Assembly 31 is located at first position, the sticking department 314 is at least partly Structure is limited in the limiting slot, to lock the ejector pin bar 12.

In a specific embodiment, the holding block 123 is set to the proximal end of the ejector pin bar 12, and prolongs in transverse direction It stretches, the sticking department 314 proximally extends to form in direction from the pedestal 311, to match with the holding block 123.Certainly, It being not limited to this, the holding block 123 also can connect at other longitudinal any positions of the ejector pin bar 12, as long as The anvil assembly 2 it is not closed in place when, can be matched with the sticking department 314, lock the ejector pin bar 12.

When the Arming Assembly 31 is located at second position region, the firing lock is unlocked, the ejector pin bar 12 can It is fired, to carry out the percussion of anastomosis staple and/or cutter.It is understood that being located at the second position in the Arming Assembly 31 When region, the sticking department 314 is not on the motion path of the ejector pin bar 12, also not on the rotation road of the percussion handle 13 On diameter, thus, the percussion handle 13 can be rotated, and the ejector pin bar 12 is driven to carry out percussion campaign, be completed described medical The percussion of stapler 100.

Second embodiment and first embodiment in the utility model, in addition to above-mentioned difference, other structures are all the same, With this, repeat no more.

In the following, making by taking the Medical stapler in first embodiment as an example to the Medical stapler in described the utility model It is specifically described.

Further, the driving member 32 is movably arranged in the stapler ontology 1, proximally square in the anvil assembly 2 To when movement, the anvil assembly 2 acts on the driving member 32, drives 32 proximal movement of driving member, the driving member The 32 driving Arming Assemblies 31 are from first position region to second position regional movement, by the axial movement of the driving member 32 The transverse movement of the Arming Assembly 31 is converted to, and when the anvil assembly 2 is closed in place, the STATEMENT OF FEDERALLY SPONSORED 312 is at least Part-structure protrudes into the guide channel 18, realizes the linkage between the percussion handle 13 and the ejector pin bar 12, from And only when the anvil assembly 2 is closed in place, the second shape is just between the percussion handle 13 and the ejector pin bar 12 State, that is, could link between the percussion handle 13 and the ejector pin bar 12, at this point, the anastomat for circumcision 100 is in Can cock, doctor can be effectively prevented and hold percussion handle 13 in the case where the anvil assembly 2 is closed not in place, carry out The percussion of anastomosis staple and cutter causes staple formation bad, even results in the generation of malpractice.

It is above-mentioned can cock refer to the closure of anvil assembly 2 in place, make the nail bin groupware 14 and the anvil block 21 pairs of foreskins to be cut have been clamped to position, also, the percussion handle 13 and the ejector pin bar 12 are also at linkage State when the second state.

Specifically, the driving member 32 is between the anvil assembly 2 and the pedestal 311, in the anvil assembly 2 to close When extreme direction moves, the anvil assembly 2 acts on the driving member 32, drives 311 edge of pedestal by the driving member 32 Laterally to second position regional movement, to drive the STATEMENT OF FEDERALLY SPONSORED 312 to protrude into the guide channel 18.

Further, the anvil assembly 2 further includes the convex block 23 set on 22 periphery of anvil axis, and the driving member 32 is set to The proximal end of the convex block 32, in 2 proximal movement of anvil assembly, the convex block 23, which supports, acts on the driving member 32, Drive 32 proximal movement of driving member.

In a specific embodiment, the driving member 32 is sheathed on the anvil axis 22, and the convex block 23 is annular in shape, The driving member 32 is acted on to support.But be not limited thereto, the convex block 23 can also be not configured to ring-type, can be with Understand, as long as the convex block 23, which can support, acts on the driving member 32.

Have in the anvil shaft body 221 of subsection setup and the embodiment of the screw rod 222 in the anvil axis 22, it is described Convex block 23 can be set to the periphery of the anvil shaft body 221, can also be set to the periphery of the screw rod 222.

It is understood that the outer diameter of the anvil shaft body 221 is generally higher than the outer diameter of the screw rod 222, thus, in institute Convex block 23 is stated in the embodiment of the periphery of the anvil shaft body 221, the convex block 23 can be used as the anvil shaft body 221 a part, for example, the convex block 23 is the proximal end of the anvil shaft body 221, in the anvil assembly 2, proximally direction is transported In dynamic process, the proximal end of the anvil shaft body 221 is held on the driving member 32, push the driving member 32 with it is described The synchronous proximally direction of anvil assembly 2 moves, to drive the Arming Assembly 31 from the first position region to second position area Domain movement.Certainly, it is not limited thereto, the convex block can also be set at other axial positions of the anvil shaft body 221 23, as long as convex block 23 can drive the synchronous proximally direction of the driving member 32 when proximally direction moves the anvil assembly 2 Movement.

Specifically, the driving member 32 includes the support division 321 being sheathed on the anvil axis 22, from the support division 321 The drive rod 322 proximally extended, the support division 321 and the convex block 23 offset cooperation, the anvil assembly 2 proximally When movement, the convex block 23, which supports, acts on the support division 321, drives 322 proximal movement of drive rod, drives institute Arming Assembly 31 is stated from first position region to second position regional movement.

Further, the nail bin groupware 14 is equipped with the guide groove 144 axially through setting, and the drive rod 322 is certainly The inside of the nail bin groupware 14 enters in the shell 11 through the guide groove 144, matches with the pedestal 311, that is, described The proximal end of drive rod 322 and pedestal 311 offset cooperation.

In the utility model, the inside of the nail bin groupware 14 refers to the nail bin groupware 14 close to the nail bin groupware 14 The side in axle center more specifically refer to the pushing slice of nail 142 close to the side in its axle center.It is understood that the guide groove 144 simultaneously through the nail barrel 141 and the pushing slice of nail 142, so that the drive rod 322 can be through the guide groove 144, from institute The inside for stating nail bin groupware 14 is pierced by into the shell 11.

During axial movement of the driving member 32 along the Medical stapler 100, the drive rod 322 is along institute The movement of guide groove 144 is stated, the movement of the driving member 32 is guided and limit.

Further, it is additionally provided with axially guiding structure between the driving member 32 and the stapler ontology 1, to guide Driving member 32 is stated along the axial movement of the stapler ontology.

In present embodiment, the axially guiding structure is mutually matched wears groove 3221 and bootstrap block 1411, in institute When stating driving member 32 axially movable, the wears groove 3221 is moved along the bootstrap block 1411, to guide and limit the transmission The movement of part 32.

In a specific embodiment, the wears groove 3221 is set on the drive rod 322, and is axially extended, described Bootstrap block 1411 is set in the nail barrel 141, and is located in the guide groove 144, that is, the bootstrap block 1411 is by the guide groove 144 separate in two independent guide grooves, so that the drive rod 322 passes through.Certainly, however it is not limited to this, it is to be understood that institute Stating bootstrap block 1411 can also be set on the shell 11, cooperate as long as can guide with the wears groove 3221.

Further, the support division 321 is detachably connected with the drive rod 322, in order to by the driving member 32 It is assembled in the stapler ontology 1.Certainly, however it is not limited to which this, the drive rod 322 can also be solid with the support division 321 Fixed connection.

In embodiment of the anastomat for circumcision 100 tool there are two the insurance institution 3, two transmissions Part 32 shares a support division 321, and the support division 321 is sheathed on the anvil axis 22, and two drive rods 322 are connected to the opposite end on the support division 321, when proximally direction moves the anvil assembly 2, the anvil assembly 2 It acts on the support division 321, to drive the synchronous proximally direction of two drive rods 322 to move, synchronous driving is corresponded to Arming Assembly 31 to second position regional movement.Certainly, however it is not limited to this, it is stated as long as can be realized by the anvil assembly 2 Driving drives the synchronous proximally direction of two driving members 32 to move.

Further, the Arming Assembly 31 is equipped with the first guide frame 313, and the driving member 32 is equipped with and institute State the second adaptable guide frame 323 of the first guide frame 313, in 32 proximal movement of driving member, described first Guide frame 313 is matched with second guide frame 323, transports the Arming Assembly 31 transversely to second position region It is dynamic.Certainly, however it is not limited to this, guide frame only can also be set on the Arming Assembly 31 or the driving member 32, only It wants that relative motion between the driving member 32 and the Arming Assembly 31 can be guided.

It is understood that the Arming Assembly 31 transversely to first position regional movement when, the first guiding knot Structure 313 is matched with second guide frame 323, and the driving member 32 can be driven distally to move along axial direction.

It is understood that first guide frame 313 is set to the distal end of the pedestal 311 in present embodiment, Second guide frame is set to the proximal end of the drive rod 322.Certainly, it is not limited thereto.

It please join in embodiment shown in fig. 5, first guide frame 313 is the first guiding surface, and described second leads It is the second guiding surface to structure 323, that is, cooperated between the pedestal 311 and the drive rod 322 using guiding surface, knot Structure is relatively simple, and cooperates and stablize.Certainly, it is not limited thereto.

Specifically, first guiding surface and second guiding surface away from a distance from axle center from proximate by It is decrescence small, in 32 proximal movement of driving member, the Arming Assembly 31 can be driven from first position region to more leaning on The second position regional movement of the paraxial heart.

It is understood that in this second embodiment, first guiding surface and second guiding surface are away from axis The distance of the heart is gradually increased from proximate, thus, in 32 proximal movement of driving member, the guarantor can be driven Dangerous component 31 is from first position region to the second position regional movement further from axle center.

Further, the nail bin groupware 14 further includes the position-limiting drum 145 in the nail barrel 141, in the anvil group When part 2 is along the axial movement of the stapler ontology 1, the anvil assembly 2 is moved along the position-limiting drum 145, can be guided described The movement of anvil assembly 2 generates shaking to prevent the anvil assembly 2 in the process of movement.

The driving member 32 is located at the proximal end of the position-limiting drum 145, has the anvil axis sheet of subsection setup in the anvil axis 22 In the embodiment of body 221 and screw rod 222, during proximally direction moves the anvil assembly 2, the anvil shaft body The proximal end of 221 proximal end from the position-limiting drum 145 is pierced by, and acts on the driving member 32, pushes the driving member 32 and institute It states the synchronous proximally direction of anvil assembly 2 to move, to drive the Arming Assembly 31 from the first position region to the second position Regional movement.

Further, the anvil shaft body 221 is equipped with the first auxiliary section 223, and the position-limiting drum 145 is equipped with second Auxiliary section 1451, when anvil assembly 2 is closed in place, first auxiliary section 223 is matched with second auxiliary section 1451, with It limits the anvil assembly 2 and continues proximally direction movement, prevent closure tension, prepuce tissues is caused excessively to be squeezed.

In present embodiment, first auxiliary section 223 is the stage portion set on the distal end of the anvil shaft body 221, institute The distal face that the second auxiliary section 1451 is the position-limiting drum 145 is stated, when the anvil assembly 2 is closed in place, the stage portion Proximal end face is held on the distal face of the position-limiting drum 145, is continued proximally direction movement to limit the anvil assembly 2, is prevented It is closed tension, prepuce tissues is caused excessively to be squeezed.

Certainly, however it is not limited to this, for example, second auxiliary section 1451 can also be set to the close of the position-limiting drum 145 End, and formed to the center line projection of the position-limiting drum 145；It is understood that first auxiliary section 223 and described As long as two auxiliary sections 1451 are configured to limit the anvil assembly 2 when the anvil assembly 2 is closed in place and continue proximally Direction movement.

Further, the insurance institution 3 further includes resetting-mechanism 33, is distally moved in the anvil assembly 2 In the process, the resetting-mechanism 33 drives the Arming Assembly 31 from the second position region to first position regional movement, So as to switch to first state between the percussion handle 13 and the ejector pin bar 12, prevent mistakenly hit from sending out.

In the embodiment that the STATEMENT OF FEDERALLY SPONSORED 312 is movably connected on the pedestal 311, the resetting-mechanism 33 is located at Between the shell and the pedestal 311, by driving the pedestal 311 transversely to first position regional movement, to drive The STATEMENT OF FEDERALLY SPONSORED 312 is synchronous to be moved to the direction far from the guide channel 18.But not limited to this, it is to be understood that When the STATEMENT OF FEDERALLY SPONSORED 312 is connected on the ejector pin bar 12, the resetting-mechanism 33 be may also set up in the STATEMENT OF FEDERALLY SPONSORED 312 and institute State between ejector pin bar 12, with the pedestal 311 revocation be applied to the power of the STATEMENT OF FEDERALLY SPONSORED 312 when, 33 energy of resetting-mechanism It enough drives the STATEMENT OF FEDERALLY SPONSORED 312 far from the guide channel 18, makes to switch between the percussion handle 13 and the ejector pin bar 12 To first state, prevent mistakenly hit from sending out.

In present embodiment, the resetting-mechanism 33 is the elastic component of the connection pedestal 311 and the shell 11, preferably , it is not limited thereto certainly for tension spring, the resetting-mechanism 33 is also possible to the structures such as elastomer block, as long as can be realized drive The Arming Assembly 31 is moved from second position region to first position regional movement.

During the Arming Assembly 31 is from first position region to second position regional movement, the tension spring is gradually It stretches, thus, when the anvil assembly 2 distally moves, the revocation of driving member 32 is applied to the Arming Assembly 31 On pressure, under the driving of the bias force of the tension spring, the Arming Assembly 31 is from second position region to first position area Domain movement, meanwhile, the Arming Assembly 31 drives the driving member 32 distally to move.

Further, the insurance institution 3 further includes the position limiting structure 35 in the stapler ontology 1, described When Arming Assembly 31 is located at first position region, the position limiting structure 35 to limit 32 distal movement of driving member, with The stability for enhancing the driving member 32 when making 32 proximal movement of driving member, can act on the Arming Assembly 31。

Specifically, the position limiting structure 35 includes the first supporting surface set on 11 distal end of shell, in the insurance group When part 31 is located at first position region, the drive rod 322 is held on first supporting surface, limit the driving member 32 to Distal movement.

In a specific embodiment, the drive rod 322 is equipped with parallel with first supporting surface and is oppositely arranged The second supporting surface 3222, when the Arming Assembly 31 is located at first position region, second supporting surface 3222 with it is described First supporting surface supports fitting, limits 32 distal movement of driving member, meanwhile, enhance the stability of the driving member 32.

Further, the position-limit mechanism 35 further includes set on the receiving portion 351 of the proximal end of the nail barrel 145, described When Arming Assembly 31 is located at first position region, at least partly structure of the support division 321 is contained in the receiving portion 351 It is interior, and the support division 321 is held in the proximal end of the nail barrel 145, limits 32 distal movement of driving member, while The driving member 32 is limited to rotate.

Further, it is arranged with first back-moving spring 16 on the ejector pin bar 12, is pushed away in the percussion handle 13 with described It is in the second state between nail rod 12, holds the percussion handle 13, the mistake for driving the ejector pin bar 12 distally to move Cheng Zhong, the first back-moving spring 16 are gradually compressed.Cancel be applied to the curable grip in the percussion handle 13 when, the Under the driving of the bias force of one reset spring 16, the ejector pin bar 12 is proximally reset to initial position.

Specifically, protrusion can be set on the ejector pin bar 12, the proximal end of the first back-moving spring 16 is held in described On protrusion, the distal end of the first back-moving spring 16 is held in the nail barrel of the nail bin groupware 14, certainly, not as Limit, the distal end of the first back-moving spring 16 can also be held on the shell 11, be resetted as long as can be realized described first The limit of 16 distal end of spring.

Preferably, the protrusion is a part of first convergence part 121, with the structure of the simplification ejector pin bar 12, At this point, in the embodiment that first convergence part 121 (protrusion) is set to the proximal end of the ejector pin bar 12, the ejector pin bar 12 is T-shaped.Certainly, it is not limited thereto.

Further, it is provided with the second return springs 17 between the percussion handle 13 and the shell 11, is holding The percussion handle 13, during rotating the percussion handle 13, second return springs 17 are gradually compressed, When cancellation is applied to the curable grip in the percussion handle 13, under the driving of the bias force of second return springs 17, The percussion handle 13 is reset to initial position.

In a specific embodiment, second return springs 17 are that spring is not limited thereto certainly, described Second return springs 17 are also possible to elastomer block.

Compared with prior art, the Medical stapler 100 in the utility model, by the way that insurance institution 3 is arranged, only in institute When stating the closure of anvil assembly 2 in place, the insurance institution 3 can just make the percussion handle 13 be in linkage with the ejector pin bar 12 The second state, can be effectively prevented doctor carried out in the case where the anvil assembly 2 is closed not in place the anastomosis staple and The percussion of cutter causes staple formation bad, even results in the generation of malpractice；Meanwhile being arranged and guiding the insurance group Part 31 enhances the stabilization that the Arming Assembly 31 moves along the lateral steering structure 4 of the transverse movement of the stapler ontology 1 Property.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiments of understanding.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

Claims (15)

1. a kind of Medical stapler, comprising:

Stapler ontology including shell, is equipped in the firing lock on the shell；

Anvil assembly, the anvil assembly can be along the axial movements of the stapler ontology；

It is characterized in that, the Medical stapler further include: the guarantor being movably arranged between the anvil assembly and the firing lock Dangerous mechanism, the insurance institution switch the firing lock cock and can not between cock, and the guarantor Dangerous mechanism includes

Arming Assembly is movably arranged in the shell, and have be in the firing lock can not be first of cock Set region and in can cock second position region；

Driving member is set between the anvil assembly and the Arming Assembly, in the anvil assembly process that proximally direction moves In, the anvil assembly acts on the driving member, by driving the drive member, and then drives the Arming Assembly from the One band of position is to second position regional movement；

Lateral steering structure, to guide the Arming Assembly along the stapler ontology laterally in first position region and the It is moved between two bands of position.

2. Medical stapler as described in claim 1, it is characterised in that: the lateral steering structure includes being set to the shell On the first guide member, and set on the second guide member of the Arming Assembly, first guide member and second guide member It matches, so that transverse movement of the Arming Assembly along the stapler ontology.

3. Medical stapler as claimed in claim 2, it is characterised in that: first guide member is with second guide member Mutually matched sliding slot and sliding block, the sliding slot are laterally extended along the stapler ontology, and the sliding block is set to the guarantor On dangerous component.

4. Medical stapler as claimed in claim 3, it is characterised in that: the insurance institution is equipped with labeling section, the shell Body, which is equipped with, supplies the exposed observation panel to observe the insurance institution present position of the labeling section.

5. Medical stapler as claimed in claim 4, it is characterised in that: the labeling section includes spaced first label Portion and the second labeling section for being different from first labeling section, it is described when the insurance institution is located at first position region First labeling section is exposed from the observation panel；When the insurance institution is located at second position region, second labeling section is certainly The observation panel exposure.

6. Medical stapler as claimed in claim 5, it is characterised in that: first labeling section is red, the second labeling section For green.

7. the Medical stapler as described in any one of claim 4-6, it is characterised in that: the labeling section is set to the cunning On block.

8. Medical stapler as described in claim 1, it is characterised in that: the first position region is compared to the second Region is set closer to the axle center of the stapler ontology；The Arming Assembly have pedestal, be connected to the pedestal with it is described The sticking department that firing lock matches, when the Arming Assembly is located at the first position region, described in the sticking department locking Firing lock, when the Arming Assembly is located at the second position region, the sticking department unlocks the firing lock.

9. Medical stapler as described in claim 1, it is characterised in that: the firing lock includes being movably arranged at the shell Interior ejector pin bar, the percussion handle being pivotally connected on the shell, the ejector pin bar can be along the axis of the stapler ontology To movement；The second position region compared to the first position region closer to the axle center of the stapler ontology, it is described When Arming Assembly is located at the first position region, not linkage between the percussion handle and the ejector pin bar, the insurance When component is located at second position region, linkage between the percussion handle and the ejector pin bar.

10. Medical stapler as claimed in claim 9, it is characterised in that: the ejector pin bar, percussion handle it is axially spaced and It is relatively set with the first convergence part, the second convergence part, forms guide channel between first convergence part and the second convergence part；? When the Arming Assembly is located at the first position region, the Arming Assembly is not in the guide channel, in the insurance When component is located at second position region, at least partly structure of the Arming Assembly enters the guide channel to be connected described and push away Nail rod and percussion handle.

11. Medical stapler as claimed in claim 10, it is characterised in that: the Arming Assembly is described with being movably connected on The pedestal of shell, the lateral steering structure is set on the pedestal, to guide the pedestal along the cross of the stapler ontology To movement.

12. Medical stapler as claimed in claim 11, it is characterised in that: the Arming Assembly also has matches with the pedestal The STATEMENT OF FEDERALLY SPONSORED of conjunction, and the STATEMENT OF FEDERALLY SPONSORED can be along the axial movement of the stapler ontology；In the anvil assembly, proximally direction is transported In dynamic process, the anvil assembly acts on the driving member, drives the pedestal transversely to move by the driving member, institute It states pedestal and pushes the STATEMENT OF FEDERALLY SPONSORED, protrude into at least partly structure of the STATEMENT OF FEDERALLY SPONSORED in the guide channel.

13. Medical stapler as claimed in claim 11, it is characterised in that: the driving member has to match with the anvil assembly The support division for closing setting, the drive rod proximally extended from the support division, the pedestal and the drive rod inclined-plane cooperate, with Drive the pedestal to second position regional movement.

14. Medical stapler as described in claim 1, it is characterised in that: the insurance institution further includes resetting-mechanism, described Resetting-mechanism drives the Arming Assembly from second position region to first position regional movement.

15. Medical stapler as described in claim 1, it is characterised in that: the Medical stapler is anastomat for circumcision, The distal end of the anvil assembly is equipped with the glans penis chamber for accommodating glans penis.