CN206809304U - Linear incision stapler - Google Patents

Abstract

A kind of linear incision stapler is the utility model is related to, including：Shell；Nail anvil support；Nail bin support；Nail anvil；Nail bin；Nail pushing plate；Trigger shaft；Close bar；Position detecting element, it is arranged on nail anvil support, positioned at the lower section of nail pushing plate, to detect whether nail pushing plate position on nail anvil support changes, before and after wherein nail pushing plate pushes nail bin to by trigger shaft, position detecting element produces different electric signals.Above-mentioned linear incision stapler, the position detecting element of detection ejector pin Board position is provided with, whether have movement, so as to judge whether nail bin is previously used, it is ensured that surgical procedures normally perform if being able to detect that the position of nail pushing plate.

Description

Linear incision stapler

Technical field

Technical field of medical instruments is the utility model is related to, more particularly to a kind of linear incision stapler.

Background technology

A kind of medicine equipment that Medical stapler is commonly used when being and being performed surgical operation to alimentary canal physiological tissue, general In surgical operation therapy, stapler is commonly used for the cutting closure function for completing tissue.The operation principle of stapler is by tissue It is placed between nail bin and nail anvil head, tissue is rationally squeezed by adjusting the distance between nail bin and nail anvil head, works as nail The distance between storehouse and nail anvil head are fired when reaching the safe range effectively sutured, and U-shaped staple is compressed into B shapes is carried out to tissue Suture, thin vessels can be in the spaces of B shape staples through the blood supply for ensureing previous anastomotic and remote organization.

Stapler is before firing, it is desirable to must have the suturing nail that can be fired in the nail bin used, if nail bin is It is used, then it will influence the execution of surgical procedures.

Utility model content

Based on this, it is necessary to which providing a kind of can identify whether nail bin is new linear incision stapler.

A kind of linear incision stapler, including：

Shell；

Nail anvil support, is fixedly connected with shell；

Nail bin support, it can be slided relative to the nail anvil support；

Nail anvil, it is fixedly connected with nail anvil support；

Nail bin, to store suturing nail, fixed with nail bin support, driven by the nail bin support and advance or retreat, it is described The jaw for accommodating tissue to be stapled is formed between nail bin and nail anvil；

Nail pushing plate, positioned at nail bin back to the side of nail anvil, can movably it be set relative to the nail anvil support and nail bin Put；

Trigger shaft, to promote nail pushing plate to advance towards the nail bin；

Bar is closed, to drive the nail bin support to advance or retreat；

Position detecting element, it is arranged on the nail anvil support, positioned at the lower section of nail pushing plate, is being followed closely to detect nail pushing plate Whether position changes on anvil support, wherein before and after the nail pushing plate pushes nail bin to by trigger shaft, the position detecting element produces Different electric signals.

Above-mentioned linear incision stapler, the position detecting element of detection ejector pin Board position is provided with, is able to detect that ejector pin Whether the position of plate has movement, so as to judge whether nail bin is previously used, it is ensured that surgical procedures normally perform.

In one of the embodiments, the optoelectronic switch is optoelectronic switch, microswitch or proximity switch.

In one of the embodiments, the linear incision stapler also includes the handle portion with shell mating, institute State the control module that the signal that receiving position detecting element is sent is provided with handle portion.

In one of the embodiments, the linear incision stapler also includes the alarm system being connected with the control module System.

In one of the embodiments, the closure bar relative to the trigger shaft remains stationary or can make straight line fortune Dynamic, the linear incision stapler also includes locating part, has and limits the closure bar and the connection position of trigger shaft relative motion The separation point position of the limitation is put, releases, wherein when the locating part is in link position, the trigger shaft being capable of band when moving The dynamic closure bar moves together, and when the locating part is in separation point position, the trigger shaft can relatively described closure bar motion.

In one of the embodiments, the locating part is also cross the trigger shaft and closure bar, wherein in the company Connect position, the locating part is axially upper while the spacing closure bar and the trigger shaft, makes the closure bar and the percussion Bar geo-stationary；In the separation point position, the locating part is disengaged with the trigger shaft not stop the percussion in the axial direction Bar.

In one of the embodiments, the nail anvil support includes nail anvil left socle and nail anvil right support, the nail bin branch Frame includes nail bin left socle and nail bin right support, wherein, trigger shaft and closure bar are clipped in nail bin left socle and nail bin right support Between, the locating part passes through the nail bin left socle, trigger shaft, closure bar and nail bin right support, the both ends of the locating part It is slidably matched respectively with the anvil left socle and nail anvil right support.

In one of the embodiments, the linear incision stapler also includes operating parts, and activity is assembled in the shell Outside, to make the locating part be changed between link position and separation point position, the operating parts has on the housing There are first position and the opposite shell post exercise second place, wherein operating parts is at the first position, the operating parts pair The locating part does not work, and for the operating parts at the second place, the operating parts drives the locating part translation bit Put.

In one of the embodiments, operation indicating structure, the behaviour are provided between the operating parts and the shell Make the first groove, the second groove and the projection between two grooves that prompting structure includes being arranged on operating parts, and set The first salient point, the second salient point and the locating slot between two salient points on shell are put, the projection can be in the positioning Slided in groove, when first groove and the cooperation of the first salient point, the operating parts is located at the first position, when described second When groove and the second salient point coordinate, the operating parts is located at the second place.

In one of the embodiments, operation indicating structure, the behaviour are provided between the operating parts and the shell Make the first magnet and the second magnet that prompting structure includes being arranged on operating parts, and the first Hall switch being arranged on shell With the second Hall switch, when first magnet triggers first Hall switch, the operating parts is located at the first position, When second magnet triggers second Hall switch, the operating parts is located at the second place.

Brief description of the drawings

Fig. 1 is the top view of the linear incision stapler of one embodiment；

Fig. 2 is the exploded perspective view of linear incision stapler；

Fig. 3 is the schematic cross-sectional view of linear incision stapler, and wherein locating part, which is in, makes trigger shaft and close what bar linked Link position；

Fig. 4 is Fig. 3 partial enlarged drawing；

Fig. 5 is the schematic cross-sectional view of linear incision stapler, and wherein locating part, which is in, makes trigger shaft and close what bar departed from Separation point position；

Fig. 6 is Fig. 5 partial enlarged drawing；

Fig. 7 is the structural representation of locating part；

Fig. 8 is the assembling schematic diagram of linear incision stapler, and wherein shell is omitted and do not illustrated, illustrates closure and not yet arrives The state that position, switch knob do not switch over；

Fig. 9 is the side view of structure shown in Fig. 8；

Figure 10 be linear incision stapler assembling schematic diagram, wherein shell omit do not illustrate, illustrate closure in place, State after switch knob switching；

Figure 11 is the side view of structure shown in Figure 10；

Figure 12 and Figure 13 is respectively the stereogram and top view of the first switch knob；

Figure 14 and Figure 15 is respectively the stereogram and top view of the second switch knob；

Figure 16 is the structural representation of nail bin left socle in Fig. 2；

Figure 17 is the structural representation for the nail anvil left socle for being provided with guide groove；

Figure 18 is the structural representation for the closure bar for being provided with pushing portion；

Figure 19 is the structural representation for the switching push rod for being provided with stopper slot；

Figure 20 be spacer pin be in can stop switching push rod promoted position when schematic diagram；

Figure 21 be spacer pin be in can stop switching push rod promoted position when schematic cross-sectional view；

Figure 22 for closure in place, spacer pin be in can not stop switching push rod promoted position when schematic diagram；

Figure 23 for closure in place, spacer pin be in can not stop switching push rod promoted position when schematic cross-sectional view；

Figure 24 is the schematic diagram that trigger shaft drives nail pushing plate completion firing action；

Figure 25 is the schematic cross-sectional view that trigger shaft drives nail pushing plate completion firing action；

Figure 26 is the schematic diagram of shell left-half；

Figure 27 and Figure 28 is respectively the schematic diagram of two different visual angles of operating parts；

Figure 29 is the partial enlarged drawing of linear Endo-GIA in Fig. 1.

Embodiment

To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this The embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description Understand the utility model.But the utility model can be to be much different from other manner described here to implement, this area Technical staff can do similar improvement in the case of without prejudice to the utility model connotation, therefore the utility model is not by following public affairs The limitation for the specific embodiment opened.

It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include The arbitrary and all combination of one or more related Listed Items.

Linear incision stapler 100 in one embodiment provided by the utility model is electric drive stapler, such as Fig. 1 and Shown in Fig. 2.Linear incision stapler 100 includes work first 110 and handle portion (not shown).Handle portion for it is reusable can Electric handle is sterilized, inside sets fast connector and signal transmission port.Fast connector is set to realize work in handle portion The connection of first 110 mechanical connection and signaling interface, handle portion inside set the motor of offer power and to electric machine with energy Power supply.Control panel can be also set inside handle portion, operated for controlled motor, and then realize linear incision stapler 100 The actions such as closure, opening and percussion.Power supply typically uses replaceable rechargeable battery pack.Power switch, closure, firing control Button etc. is also provided in handle portion.

It is right that work first 110 includes shell 111, the transmission component being arranged on inside shell 111, nail anvil left socle 112, nail anvil Support 113, nail bin left socle 114, nail bin right support 115, closure bar 116, trigger shaft 117 and sewing component 118.

The transmission component of linear incision stapler 100 drives percussion to receive the moment of torsion of motor transmission in handle portion Bar 117 moves.Transmission component is included to receive the input shaft 201 of Motor torque, the first umbrella tooth being fixed on input shaft 201 202nd, screw sleeve 203, the second umbrella tooth 204 being fixed on outside screw sleeve 203, the screw rod 205 that is sheathed on inside screw sleeve 203. Wherein, it is fixedly connected between screw rod 205 and trigger shaft 117.Screw sleeve 203 and shell 110 are can relatively rotate but can not be axial Mobile mode is flat to be coordinated, and such screw sleeve 203 is driven by input shaft 201 when rotating, screw rod 205 will make translation advance or after Move back, and then screw rod 205 drives the straight ahead of trigger shaft 117 or retrogressing.

Closure bar 116 is arranged on the side of trigger shaft 117, closure bar 116 and nail bin left socle 114,115 groups of nail bin right support With together, closure bar 116 can be relative to the remains stationary of trigger shaft 117 or for linear motion.Wherein, set inside shell 110 It is equipped with locating part 206.The both ends of locating part 206 are slidably connected with shell 110.Locating part 206, which has to limit, closes bar 116 The link position of relative motion occurs with trigger shaft 117 so that trigger shaft 117 can drive closure bar 116 1 to start shipment when advancing It is dynamic, to complete closed action；In the separation point position for releasing above-mentioned limitation when locating part 206 is also equipped with being operated so that limit Position part 206 no longer stops trigger shaft 117 in (and direction of motion of trigger shaft 117) in the axial direction so that trigger shaft 117 is driven Closure bar 116 will not be driven to move together during dynamic translation, so as to which trigger shaft 117 can be moved alone with relatively closed bar 116, with complete Into firing action.

With reference to figure 3 to Fig. 7, locating part 206 is provided with notch part through closure bar 116 and trigger shaft 117, its middle part 2062.In Fig. 3 and Fig. 4, locating part 206 stops closure bar 116 and trigger shaft 117 simultaneously in the axial direction so that trigger shaft 117 Closure bar 116 can be driven to move by locating part 206 during motion.In Fig. 5 and Fig. 6, locating part 206 is sent out relative to Fig. 3 and Fig. 4 Raw rotation, notch part 2062 are only oriented to trigger shaft 117 after rotating, and due to the presence of notch part 2062, locating part 206 is in the axial direction No longer stop trigger shaft 117, trigger shaft 117 can move alone.

In the present embodiment, close and the through hole 1162 passed through for locating part 206 is provided with bar 116, and the one of trigger shaft 117 Side is then provided with semi-circular groove 1172.Before trigger shaft 117 moves alone, the position of locating part 206 always with semi-circular groove 1172 correspondences.

For the ease of operating locating part 206, the outside of shell 111 is provided with operating parts 119.Shell 111 is internally provided with Switch push rod 207, the first switch knob 208 and the second switch knob 209.Switching push rod 207 is fixedly connected with operating parts 119, Also it is fixedly connected simultaneously with the first switch knob 208 and the second switch knob 209 by a connecting rod 2071 simultaneously.First cuts The switch knob 209 of knob 208 and second is changed respectively positioned at the both sides of locating part 206 and coordinating with locating part 206.Switching Push rod 207 connects two switch knobs simultaneously by connecting rod 2071, extends the first switch knob 208 and the second switch knob The 209 operation arm of force, so as to reduce the push-pull effort of operating parts 119.

Operating parts 119 is a slip lid, can opposite shell 111 slide back and forth.Operating parts 119 is to by operating switching push rod 207th, the first switch knob 208 and the second switch knob 209 make locating part 206 be changed between link position and separation point position. Operating parts 119 is configured as having first position and the post exercise second place of opposite shell 111 on shell 111, wherein grasping At first position, operating parts 119 does not work workpiece 119 to locating part 206, and operating parts 119 is at the second place, operating parts 119 can drive the transition status of locating part 206.

The first position of operating parts 119 is as shown in Figure 8 and Figure 9, it can be seen that now two switch knobs are not rotated. Linear incision stapler 100 not yet starts closed action.The second place of operating parts 119 as shown in Figure 10 and Figure 11, can be seen Arrive, now two switch knobs have been rotated, and are now closed in place, can start firing action.That is, the second of operating parts 119 Position is the position that correspondingly linear incision stapler 100 closes in place.

Therefore, operating parts 119 is configured as：Before closing in place, operating parts 119 can not drive locating part 206 to change State, after only closing in place, operating parts 119 can drive the transition status of locating part 206, also cause linear incision stapler 100 are converted to cock by closure state.And after closing in place, user only needs the operation of a slide part 119 , it is very easy to use, before closure is in place, it will not also drive locating part 206 to change shape even if slide part 119 State.

Figure 12 and Figure 13 is the structural representation of the first switch knob 208.Figure 14 and Figure 15 is the second switch knob 209 Structural representation.Two knob structures are similar, and due to being located at the both sides of locating part 206 respectively, the two structure is symmetrical.

By taking the first switch knob 208 as an example, neck 2082 is provided with the first switch knob 208, wherein when trigger shaft 117 When drive closure bar 116 moves to precalculated position (closing in place), locating part 206 also follows trigger shaft 117 and closure bar 116 The position being engaged with the first switch knob 208 is moved to, specifically, the end of locating part 206 is entered in neck 2082, is made Obtaining when the first switch knob 208 is rotated can drive locating part 206 to rotate.If on the contrary, trigger shaft 117 and closure bar 116 When not moving to precalculated position (closing not in place), the end of locating part 206 is introduced into neck 2082, due to locating part 206 can not drive limit in the position that can not be engaged with the first switch knob 208, the first switch knob 208 when being rotated Position part 206 rotates.

Make similar setting on second switch knob 209, repeat no more.In this way, only after closing in place, slide Part 119 makes it move to the second place by first position, can complete switching of the closure state to cock.

In addition, linear incision stapler 100 also includes switch protecting structure, the switch protecting structure is preventing trigger shaft 117 and closure bar 116 not at precalculated position (closure not in place), the rotation of switch knob, during so as to avoid closure in place but Switching of the closure state to cock can not be completed.

Still illustrated by taking the first switch knob 208 as an example, Figure 12, Figure 13 and Figure 16 illustrate the switching of first way Protection structure.The switch protecting structure of the first is included in the locating piece 2084 set on the first switch knob 208, is arranged on nail The stopper slot 1141 being engaged with locating piece 2084 on storehouse left socle 114.Wherein, stopper slot 1141 includes the He of first paragraph 1143 Second segment 1145.First paragraph 1143 is a bar-shaped trough.Second segment 1145 connects with first paragraph 1143, and size is more than first paragraph 1143。

When linear incision stapler 100 is closed not in place, when locating piece 2084 is in first paragraph 1143, the first switch knob 208, which are restricted from rotation, is merely able to slide axially.After linear incision stapler 100 closes in place, locating piece 2084 moves During into second segment 1145, locating piece 2084 has the space of rotation in second segment 1145, and the first switch knob 208 can be turned It is dynamic.Make similar setting on second switch knob 209, repeat no more.Thus, when linear incision stapler 100 is closed not in place, First switch knob 208 will not be driven to rotate.

Figure 17 to Figure 23 then illustrates the switch protecting structure of the second way.Second of switch protecting structure includes setting Put the stopper slot 2072 on switching push rod 207, the guide groove 1121 being arranged on nail anvil left socle 112, spacer pin 1123, set Put the pushing portion 1164 on closure bar 116.

Spacer pin 1123 through the end of stopper slot 2072 and spacer pin 1123 by the limitation of guide groove 1121 can only on move down It is dynamic.Stopper slot 2072 includes first paragraph 2073 and second segment 2075, L-shaped on the whole, and first paragraph 2073 is from second segment 2075 Extend after the bending of end.

When linear incision stapler 100 is closed not in place, spacer pin 1123 is located in first paragraph 2073 and by first paragraph 2073 inwall stops so that switching push rod 207 can not be promoted, and then switching push rod 207 will not drive the first switch knob 208 and second switch knob 209 rotate, so as to avoid closure not in place when switch knob be rotated at random, be unlikely to close The situation that switch knob can not but coordinate with locating part 206 after closing in place.

The elastic construction 2077 for making spacer pin 1123 be maintained in first paragraph 2073 is additionally provided with first paragraph 2073.Elasticity Structure 2077 is shell fragment or other flexible members.

In the closing course of linear incision stapler 100, closure bar 116 moves, and the pushing portion 1164 closed on bar 116 advances While spacer pin 1123 is increased in guide groove 1121, while make spacer pin 1123 overcome the elastic force of shell fragment to move upwards. After closing in place, spacer pin 1123 just moves to the connectivity part of first paragraph 2073 and second segment 2075.Now switching is promoted to push away Bar 207, spacer pin 1123 can enter second segment 2075 and be slided in second segment 2075, not influence to change switching push rod 207 Slip.

In the present embodiment, pushing portion 1164 is inclined-plane.While closing the advance of bar 116, supported on inclined-plane with spacer pin 1123 The height at the position connect gradually increases, so as to constantly promote spacer pin 1123 to rise in guide groove 1121.On the contrary, closure bar During 116 retrogressing, spacer pin 1123 then constantly declines.

Pushing portion 1164 can also be arranged on trigger shaft 217, do not influence to close the preceding lifting to spacer pin 1123 in place. In the present embodiment, because closure bar 116 is rear motionless in place in closure, pushing portion 1164 is arranged on closure bar 116, on axial direction The space for not needing more pushing portions 1164 to advance, beneficial to the structure design of entirety.

Figure 26 to 28 is refer to, operation indicating structure is additionally provided between operating parts 119 and shell 111, to prompt to grasp Switching of the workpiece 119 between its first position and the second place, user can easily perceive whether complete switching action.

At least following two implementations of operation indicating structure.The first, operation indicating structure includes being arranged on operation The first groove 1191, the second groove 1193 on part 119 and the projection 1195 between two grooves, and it is arranged on shell The first salient point 1112, the second salient point 1114 on 111 and the locating slot 1116 between two salient points.Wherein shell 111 by Two half-shells are formed, and a half-shell is only illustrated in Figure 25.Correspondingly, the first above-mentioned salient point is provided with two half-shells 1112nd, the second salient point 1114 and the locating slot 1116 between two salient points.

Operating parts 119 is assembled after shell 111, and projection 1195 can be slided in locating slot 1116.When the first groove 1191 When coordinating with the first salient point 1112, operating parts 119 is located at its first position, when the second groove 1193 and the second salient point 1114 coordinate When, operating parts 119 is located at its second place.

By the physical contact of groove and salient point, when operating parts 119 switches between the two positions, user can be according to hand The change of sense easily determines whether to have completed to switch, and then the different control buttons that can be gone in joystick portion.

Second of implementation：Operation indicating structure includes the first magnet 1197 and second being arranged on operating parts 119 Magnet 1198, and the first Hall switch and the second Hall switch (not shown) being arranged on shell 111.First magnet 1197 touches When sending out the first Hall switch, operating parts 119 is located at its first position, when the second magnet 1198 triggers the second Hall switch, operation Part 119 is located at its second place.Pass through the signal intensity of two Hall switch so that the control module of handle portion can control sound Sound module, vibration module, light modules work, are prompted user.

With reference to figure 22 to Figure 25, sewing component 118 includes nail anvil 1181, storing the nail bin 1182 of suturing nail and ejector pin Plate 1183.Wherein, nail anvil 1181 is fixed with nail anvil left socle 112 and nail anvil right support 113, and nail bin 1182 is then with respect to the left branch of nail anvil Frame 112 and nail anvil right support 113 can slide axially, and be formed between nail bin 1182 and nail anvil 1181 to place tissue to be stapled Jaw.

Nail pushing plate 1183 is placed in nail bin 1182 back to the side of nail anvil 1181, and it can axially be slided relative to nail bin 1182 Dynamic, nail pushing plate 1183 promotes advance by trigger shaft 117, so as to complete to fire suturing nail release nail bin 1182.

During closure, closure bar 116 advances, and nail bin left socle 114, nail bin right support 115 drive nail bin 1182, nail pushing plate 1183 advance towards nail anvil 1181, and jaw constantly reduces.After closing in place, closure bar 116 is slack, and trigger shaft 117 continues Advance and promote nail pushing plate 1183 to advance, complete percussion.After the completion of percussion, when trigger shaft 117 retreats alone, nail bin 1182, push away Nail-plate 1183 is motionless, and when closing the retrogressing of bar 116, nail bin 1182, nail pushing plate 1183 retreat together.

Also include to detect the position detecting element 1185 of the position of nail pushing plate 1183 in sewing component 118.Detect position Element 1185 is arranged on nail anvil left socle 112 or nail anvil right support 112.Utilize the nail of the detection installation of position detecting element 1185 Whether storehouse is new nail bin, avoids faulty operation.

As shown in figure 23, the position that will be fired is moved to for trigger shaft 117, now nail pushing plate 1183 is not yet promoted. Position detecting element 1185 can sense nail pushing plate 1183, illustrate that nail pushing plate 1183 is not promoted, and nail bin 1182 is new nail bin, It can be normally carried out firing.

As shown in figure 24, after the completion of percussion, trigger shaft 117 releases nail pushing plate 1183, and position detecting element 1185 will It can't detect nail pushing plate 1183.In this way, when nail bin 1182 follows closure bar 116 to return to maximum jaw opening position, due to ejector pin Plate 1183 can't self-return, position detecting element 1185 will can't detect nail pushing plate 1183, and system will be prompted to change nail bin 1182.Prompting can be realized by light, sound lamp mode.Therefore position detecting element 1185 is provided with, can easily obtained Know whether nail bin 1182 completed ejector pin, if be new, avoid carrying out percussion operation to used nail bin.

Position detecting element 1185 can be optoelectronic switch.When work first 110 groups of catcher shanks after, optoelectronic switch and handle Control module communication connection in portion, nail pushing plate 1183 are pushed to before and after nail bin 1182, and electric signal caused by optoelectronic switch is different, System is set to know whether the position of nail pushing plate 1183 changes.Control module can connect alarm module, to be carried to user Show.Certainly, control module can not also generate jet instruction directly after detecting that nail bin 1182 is not new nail bin.

Position detecting element 1185 can also be microswitch or proximity switch, can before and after the change of the position of nail pushing plate 1183 To trigger microswitch or proximity switch, different electric signals is produced, the signal intensity for receiving control module, so as to Know whether nail pushing plate 1183 has to be promoted.

In addition, in the present embodiment, closure bar 116 is to drive advance by trigger shaft 117.It should be pointed out, however, that above-mentioned detection Whether nail bin 1182 is that the scheme of new nail bin can equally be well applied to close bar 116, trigger shaft 117 and individually set driving machine The stapler of structure.

The linear incision stapler 100 of the present embodiment is additionally provided with safety indicating structure, and in apparatus normal work, its is auxiliary Help warning function.

To join Figure 29, close bar 116 and trigger shaft 117 is placed side by side, closure bar 116 has the top for covering trigger shaft 117, The top is provided with along the axial arranged indicating area 1165 of closure bar 116.Instruction unit 1174 is provided with trigger shaft 117, When trigger shaft 117 moves relative to closure bar 116, instruction unit 1174 is moved in the region corresponding to indicating area 1165.

The first end of indicating area 1165 correspondingly closes the position that bar 116 closes instruction unit 1174 on trigger shaft 117 when in place Put.Second end relative with first end of indicating area 1165 then to indicate percussion in place when instruction unit 1174 position.Change speech It, after closing in place, instruction unit 1174 just moves to the first end of indicating area 1165, i.e., is alignd with first end.Now slide Dynamic operating parts 119 makes the transition status of locating part 206.Trigger shaft 117 moves on, and instruction unit 1174 moves on until fortune therewith The second end to indicating area 1165 is moved, i.e., is alignd with the second end, now trigger shaft 117 pushes nail pushing plate 1183 to nail bin 1182 The position of suturing nail, i.e. firing position can be fired by reaching.

The top for closing bar 116 sets fluting 1166.The both sides of fluting 1166 are provided with indicating area 1165.Indicate area Domain 1165 is the region that graduation mark is formed or is attached to the mark at the top of closure bar 116.Attachment can be paste, The modes such as coating.

Instruction unit 1174 is stuck in fluting 1166.One bottom land of fluting 1166 and the two port of indicating area 1165 Together, prevent trigger shaft 117 from excessively firing.Instruction unit 1174 could be arranged to through the fluting 1166 on the top of closure bar 116, Can also be concordant with closing the top of bar 116.

It is fully located in addition, instruction unit 1174 can also be below the top of closure bar 116.Now, fluting 1166 also may be used To save, it is changed to be arranged to transmission region, the length of transmission region is consistent with the length of indicating area 1165, the both ends of the two point Do not align, it has also been observed that the motion conditions of instruction unit 1174.Transmission region can be to set transparent material to be formed, and also may be used Be set engraved structure formed.

Above-mentioned safety indicating structure can play suggesting effect when linear Endo-GIA 100 is using electric drive mode. In addition, linear incision stapler 100 can also set manual adjustment structure, with the manually operated execution hand when electric model fails Art.And above-mentioned safety indicating structure can accurately control closing position, firing position when stapler uses manual mode And percussion terminate after the position retracted of closure bar 116.

Wherein, explanation closure in place, can be with slide when instruction unit 1174 moves to the first end of indicating area 1165 Part 119 carries out switching of the closure state to cock.Instruction unit 1174 illustrates when moving to the second end of indicating area 1165 Reach firing position.When closure bar 116, trigger shaft 117 return together, when instruction unit 1174 moves to the of indicating area 1165 Explanation closure bar 116, trigger shaft 117 have returned to initial position during one end.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. A kind of 1. linear incision stapler, it is characterised in that including：

   Shell；

   Nail anvil support, is fixedly connected with shell；

   Nail bin support, it can be slided relative to the nail anvil support；

   Nail anvil, it is fixedly connected with nail anvil support；

   Nail bin, to store suturing nail, fixed with nail bin support, driven by the nail bin support and advance or retreat, the nail bin The jaw for accommodating tissue to be stapled is formed between nail anvil；

   Nail pushing plate, positioned at nail bin back to the side of nail anvil, can movably it be set relative to the nail anvil support and nail bin；

   Trigger shaft, to promote nail pushing plate to advance towards the nail bin；

   Bar is closed, to drive the nail bin support to advance or retreat；

   Position detecting element, it is arranged on the nail anvil support, positioned at the lower section of nail pushing plate, to detect nail pushing plate in nail anvil branch Whether position changes on frame, wherein before and after the nail pushing plate pushes nail bin to by trigger shaft, the position detecting element produces different Electric signal.
2. 2. linear incision stapler according to claim 1, it is characterised in that the position detecting element is opened for photoelectricity Pass, microswitch or proximity switch.
3. 3. linear incision stapler according to claim 1, it is characterised in that the linear incision stapler also include with The handle portion of shell mating, the control module for the signal that receiving position detecting element is sent is provided with the handle portion.
4. 4. linear incision stapler according to claim 3, it is characterised in that the linear incision stapler also include with The warning system of the control module connection.
5. 5. linear incision stapler according to claim 1, it is characterised in that the closure bar can be relative to the percussion Bar remains stationary is for linear motion, and the linear incision stapler also includes locating part, have limit it is described closure bar with The link position of trigger shaft relative motion, the separation point position for releasing the limitation, wherein when the locating part is in link position, The closure bar can be driven to move together during the trigger shaft motion, when the locating part is in separation point position, the percussion Bar can relatively described closure bar motion.
6. 6. linear incision stapler according to claim 5, it is characterised in that the locating part is also cross the percussion Bar and closure bar, wherein in the link position, the locating part is axially upper while the spacing closure bar and the percussion Bar, make the closure bar and the trigger shaft geo-stationary；In the separation point position, the locating part disengages with the trigger shaft Not stop the trigger shaft in the axial direction.
7. 7. linear incision stapler according to claim 5, it is characterised in that the nail anvil support includes nail anvil left socle And nail anvil right support, the nail bin support include nail bin left socle and nail bin right support, wherein, trigger shaft and closure bar are clipped in Between nail bin left socle and nail bin right support, the locating part is right through the nail bin left socle, trigger shaft, closure bar and nail bin Support, the both ends of the locating part are slidably matched with the anvil left socle and nail anvil right support respectively.
8. 8. linear incision stapler according to claim 5, it is characterised in that the linear incision stapler also includes behaviour Workpiece, activity is assembled in the outside of the shell, to make the locating part be changed between link position and separation point position, institute State operating parts has first position and the opposite shell post exercise second place on the housing, and wherein operating parts is described During one position, the operating parts does not work to the locating part, and the operating parts is at the second place, the operating parts Drive the locating part conversion position.
9. 9. linear incision stapler according to claim 8, it is characterised in that set between the operating parts and the shell It is equipped with operation indicating structure, the first groove that the operation indicating structure includes being arranged on operating parts, the second groove and is located at Projection between two grooves, and the first salient point, the second salient point and the positioning between two salient points being arranged on shell Groove, the projection can be slided in the locating slot, and when first groove and the cooperation of the first salient point, the operating parts is located at The first position, when second groove and the cooperation of the second salient point, the operating parts is located at the second place.
10. 10. linear incision stapler according to claim 8, it is characterised in that between the operating parts and the shell Operation indicating structure is provided with, the operation indicating structure includes the first magnet and the second magnet being arranged on operating parts, and The first Hall switch and the second Hall switch being arranged on shell, when first magnet triggers first Hall switch, The operating parts is located at the first position, and when second magnet triggers second Hall switch, the operating parts is located at The second place.