CN106344093A

CN106344093A - Linear cutting stapler

Info

Publication number: CN106344093A
Application number: CN201611048212.2A
Authority: CN
Inventors: 刘殿臣; 徐荣华; 郭力友
Original assignee: Suzhou IntoCare Medical Technology Co Ltd
Current assignee: Suzhou IntoCare Medical Technology Co Ltd
Priority date: 2016-11-24
Filing date: 2016-11-24
Publication date: 2017-01-25
Anticipated expiration: 2036-11-24
Also published as: CN106344093B

Abstract

The invention relates to a liner cutting stapler. The liner cutting stapler comprises a shell, an input shaft, a triggering rod, a closing rod, a limiting piece and an operating piece, wherein the limiting piece comprises a connecting position for limiting the closing rod and the triggering rod to oppositely move and a separating position for relieving limiting, when the limiting piece is located at the connecting position, the triggering rod during moving can drive the closing rot to move together, and when the limiting piece is located at the separating position, the triggering rod can move relative the closing rod; the operating piece comprises a first position on the shell and a second position after moving relative to the shell, the operating piece is free of effect on the limiting piece when being located at the first position, and the operating piece can drive the limiting piece to switch the state when being located at the second position. After closing is completed, the operating piece on the shell only needs to be operated to allow the driving limiting piece to switch the state, the triggering rod is separated from the closing rod accordingly, and the triggering rod can separately move to complete triggering action; when the closing state is switched into the triggering state, operating is convenient, the using habits are met, and the state cannot be mistakenly switched before closing in place.

Description

Linear incision anastomat

Technical field

The present invention relates to technical field of medical instruments, more particularly to a kind of linear incision anastomat.

Background technology

Medical stapler is commonly used a kind of medical apparatus and instruments when digestion living according to principles for self-cultivation reason tissue is performed surgical operation, general In surgical operation therapy, anastomat is commonly used for completing the cutting closure function of tissue.The operation principle of anastomat is to organize It is placed between nail bin and nail anvil head, by adjusting the distance between nail bin and nail anvil head, tissue is rationally squeezed, work as nail Percussion when the distance between storehouse and nail anvil head reach the safety range of effective suture, u shape staple is compressed into b shape tissue is carried out Suture, thin vessels can pass through the blood supply ensureing anastomotic stoma and remote organization in the space of b shape staple.

The linear incision anastomat of traditional manual type, closure needs multiple operations when changing to cock after terminating, Using very inconvenient.

Content of the invention

Based on this it is necessary to provide a kind of linear incision anastomat, it is switched to by closure state and operates during cock Convenient.

A kind of linear incision anastomat, comprising:

Shell；

Trigger shaft, is movably arranged with respect to shell；

Closure bar, is movably arranged with respect to shell；

Locating part, has and limits the link position of described closure bar and trigger shaft relative motion, releases dividing of described restriction Off normal and put, when wherein said locating part is in link position, described closure bar one during described trigger shaft motion, can be driven to start shipment Dynamic, when described locating part is in separation point position, described trigger shaft can relatively described closure bar motion；

Operating parts, activity group is assigned in the outside of described shell, in order to make described locating part in link position and separation point position Between change, described operating parts has primary importance and the opposite shell post exercise second position on the housing, wherein grasps , in described primary importance, described operating parts is inoperative to described locating part for workpiece, and described operating parts is in the described second position When, described operating parts drives described locating part dislocation.

Above-mentioned linear incision anastomat, realizes trigger shaft using locating part and closure bar is synchronized with the movement and trigger shaft is individually transported Dynamic, it is additionally provided with operating parts, it is only necessary to operating parts in operation housing after the completion of closure, you can so that driving locating part is changed State, makes trigger shaft separate with closure bar, trigger shaft can move alone to complete firing action, and closure state switches to percussion During state, operation facility, meets use habit, and operating parts is inoperative to locating part in primary importance, closes before putting in place not Can mistake switching.

Wherein in an embodiment, described operating parts is relatively described outer along the axially direction parallel to described trigger shaft Shell moves.

Wherein in an embodiment, described locating part also cross described trigger shaft and closes bar, wherein in described company Connect position, simultaneously spacing described closure bar and described trigger shaft in described locating part axial direction, make described closure bar and described percussion Bar geo-stationary；In described separation point position, described locating part is disengaged with described trigger shaft not stop described percussion in the axial direction Bar.

Wherein in an embodiment, described linear incision anastomat also includes switch knob, and described operating parts passes through institute The cooperation stating switch knob with locating part drives locating part motion, and it is predetermined that wherein said trigger shaft drives described closure bar to move to During position, described locating part follows described trigger shaft and closure bar moves to the position matched with described switch knob, described , not when described precalculated position, described locating part is in the position that can not match with described switch knob for trigger shaft and closure bar Put.

Wherein in an embodiment, described linear incision anastomat also includes nail anvil left socle, nail anvil right support, nail bin Left socle, nail bin right support, wherein nail anvil left socle are all fixedly connected with shell with nail anvil right support, and trigger shaft and closure bar are equal It is clipped between nail bin left socle and nail bin right support, nail bin left socle and nail bin right support are then all clipped in nail anvil left socle and nail anvil Between right support, described locating part passes through described nail bin left socle, trigger shaft, closure bar and nail bin right support, described locating part Two ends be slidably matched with described anvil left socle and nail anvil right support respectively.

Wherein in an embodiment, described linear incision anastomat also includes switch protecting structure, described switch protecting Structure is in order to prevent described trigger shaft and closure bar not when precalculated position, the rotation of described switch knob.

Wherein in an embodiment, locating piece that described switch protecting structure includes being arranged on described switch knob, It is arranged on the stopper slot on nail bin left socle and/or nail bin right support, described stopper slot includes first paragraph and second segment, wherein institute State locating piece in described first paragraph when, described switch knob be restricted from rotate, described closure bar drive stopper slot motion When so that described locating piece is located in second segment, described switch knob can be rotated.

Wherein in an embodiment, described linear incision anastomat also includes setting and slides inside the housing and with shell The switching push rod connecting, described switching push rod is connected with described operating parts, in order to drive switch knob to rotate.

Wherein in an embodiment, described switch protecting structure include being arranged on stopper slot on described switching push rod, The gathering sill that is arranged on nail anvil left socle and/or nail anvil right support, spacer pin, it is arranged on pushing on closure bar or trigger shaft Portion, wherein said spacer pin passes through described stopper slot and the end of spacer pin is moved up and down by the guiding of described gathering sill, described limit Position groove includes first paragraph and second segment, limits switching push rod opposite shell motion when described spacer pin is located in described first paragraph, When spacer pin is located in described second segment switching push rod can opposite shell motion, described switch protecting structure also includes making described Spacer pin is maintained at the elastic construction in described first paragraph, when described closure bar is followed trigger shaft and is moved together, described pushing portion Described spacer pin can be driven to overcome the resistance of elastic construction to move to second segment by first paragraph.

Wherein in an embodiment, it is provided with operation indicating structure between described operating parts and described shell, in order to carry Show switching between its primary importance and second position for the operating parts, described operation indicating structure includes being arranged on operating parts First groove, the second groove and be located at projection between two grooves, and be arranged on the first salient point on shell, the second salient point and Locating slot between two salient points, described projection can be slided in described locating slot, when described first groove is convex with first During point cooperation, described operating parts is located at described primary importance, when described second groove and the second salient point coordinate, described operating parts Positioned at the described second position；Or, described operation indicating structure includes the first Magnet being arranged on operating parts and the second Magnet, and It is arranged on the first Hall switch on shell and the second Hall switch, when described first Magnet triggers described first Hall switch, Described operating parts is located at described primary importance, and when described second Magnet triggers described second Hall switch, described operating parts is located at The described second position.

Brief description

Fig. 1 is the top view of the linear incision anastomat of an embodiment；

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

Fig. 3 is the cross-sectional schematic of linear incision anastomat, and wherein locating part is in makes trigger shaft and close bar linkage Link position；

Fig. 4 is the partial enlarged drawing of Fig. 3；

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

Fig. 6 is the partial enlarged drawing of Fig. 5；

Fig. 7 is the structural representation of locating part；

Fig. 8 is the assembling schematic diagram of linear incision anastomat, and wherein shell omits and do not illustrate, 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 anastomat assembling schematic diagram, wherein shell omit do not illustrate, illustrate closure put 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 axonometric chart and the top view of the first switch knob；

Figure 14 and Figure 15 is respectively axonometric chart and the 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 of the nail anvil left socle being provided with gathering sill；

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

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

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

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

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

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

Figure 24 drives nail pushing plate to complete the schematic diagram of firing action for trigger shaft；

Figure 25 drives nail pushing plate to complete the cross-sectional schematic of firing action for trigger shaft；

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.

Specific embodiment

Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.Elaborate a lot of details in order to fully understand this in the following description Bright.But the present invention can be much to implement different from alternate manner described here, and those skilled in the art can be not Similar improvement is done, therefore the present invention is not limited by following public specific embodiment in the case of running counter to intension of the present invention.

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

Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention The implication that technical staff is generally understood that is identical.The term being used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body is it is not intended that in limiting the present invention.Term as used herein " and/or " include one or more phases The arbitrary and all of combination of the Listed Items closing.

Linear incision anastomat 100 in the embodiment that the present invention provides is electric drive anastomat, such as Fig. 1 and Fig. 2 Shown.Linear incision anastomat 100 includes work 110 and handle portion (not shown).Handle portion is reusable disappearing Malicious electric handle, internal setting fast connector and signal transmission port.In handle portion, setting fast connector realizes work head 110 mechanical connection and the connection of signaling interface, setting inside handle portion provides the motor of power and to electric machine with energy Power supply.Panel also can be set inside handle portion, for controlled motor operating, and then realize closing of linear incision anastomat 100 The action such as close, open and fire.Power supply typically adopts removable rechargeable battery pack.On and off switch, closure, firing control are pressed Button etc. is also provided in handle portion.

Work 110 includes shell 111, is arranged on transmission component shell 111 within, nail anvil left socle 112, the nail anvil right side Support 113, nail bin left socle 114, nail bin right support 115, closure bar 116, trigger shaft 117 and sewing assembly 118.

The transmission component of linear incision anastomat 100 is in order to receive the moment of torsion of motor transmission in handle portion, and drives percussion Bar 117 moves.Transmission component includes the input shaft 201 receiving Motor torque, the first umbrella tooth being fixed on input shaft 201 202nd, screw sleeve 203, be fixed on the second umbrella tooth 204 outside screw sleeve 203, be sheathed on screw rod 205 within screw sleeve 203. Wherein, it is fixedly connected between screw rod 205 and trigger shaft 117.Screw sleeve 203 and shell 110 with can relatively rotate but can not be axial The mode of movement puts down cooperation, when such screw sleeve 203 is subject to input shaft 201 to drive rotation, screw rod 205 by make translation advance or after Move back, and then screw rod 205 drives trigger shaft 117 straight ahead or retrogressing.

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

With reference to Fig. 3 to Fig. 7, locating part 206 passes through closure bar 116 and trigger shaft 117, is provided with notch part in the middle part of it 2062.In Fig. 3 and Fig. 4, locating part 206 stops closure bar 116 and trigger shaft 117 in the axial direction so that trigger shaft 117 simultaneously 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 with respect to Fig. 3 and Fig. 4 Raw rotation, notch part 2062 is 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, closure bar 116 is provided with the through hole 1162 passing through for locating part 206, and the one of trigger shaft 117 Side is then provided with semi-circular groove 1172.Before trigger shaft 117 independently moving, the position of locating part 206 always with semi-circular groove 1172 is corresponding.

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 Switching 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, It is fixedly connected with the first switch knob 208 and the second switch knob 209 also by a connecting rod 2071 simultaneously simultaneously.First cuts Change knob 208 and the second switch knob 209 is located at the both sides of locating part 206 and respectively all in order to coordinate with locating part 206.Switching Push rod 207 is simultaneously connected with two switch knobs by connecting rod 2071, extends the first switch knob 208 and the second switch knob The 209 operation arm of force, thus reduce the push-pull effort of operating parts 119.

Operating parts 119 is a slip lid, can opposite shell 111 slide anteroposterior.Operating parts 119 is in order to by operation switching push rod 207th, the first switch knob 208 and the second switch knob 209 make locating part 206 change between link position and separation point position. Operating parts 119 is configured to there is primary importance and the opposite shell 111 post exercise second position on shell 111, wherein grasps , in primary importance, operating parts 119 is inoperative to locating part 206 for workpiece 119, operating parts 119 in the second position, operating parts 119 can drive locating part 206 transition status.

The primary importance of operating parts 119 as shown in Figure 8 and Figure 9 it can be seen that now two switch knobs be not rotated. Linear incision anastomat 100 not yet starts closed action.The second position of operating parts 119 as shown in Figure 10 and Figure 11, can be seen Arrive, now two switch knobs are rotated, now closure puts in place, can start firing action.That is, the second of operating parts 119 Position is the position that correspondence linear Endo-GIA 100 closure puts in place.

Therefore, operating parts 119 is configured as: before closure puts in place, operating parts 119 can not drive locating part 206 to change State, after only closure puts in place, operating parts 119 can drive locating part 206 transition status, also makes linear incision anastomat 100 are converted to cock by closure state.And after closure puts in place, user only needs to the operation of a slide part 119 , very easy to use, before closure puts in place, even if slide part 119 also will not drive locating part 206 to change shape 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 locating part 206 both sides respectively, the two structure is symmetrical.

, the first switch knob 208 is provided with draw-in groove 2082, wherein when trigger shaft 117 taking the first switch knob 208 as a example When driving closure bar 116 to move to precalculated position (i.e. closure puts in place), locating part 206 also follows trigger shaft 117 and closure bar 116 Move to the position matched with the first switch knob 208, specifically, the end of locating part 206 enters in draw-in groove 2082, makes Obtaining when the first switch knob 208 is rotated to drive locating part 206 to rotate.On the contrary, if trigger shaft 117 and closure bar 116 When not moving to precalculated position (closure does not put in place), the end of locating part 206 is introduced in draw-in groove 2082, due to locating part 206 are in the position that can not match with the first switch knob 208, and the first switch knob 208 can not drive limit when being rotated Position part 206 rotates.

Make similar setting on second switch knob 209, repeat no more.So, only after closure puts in place, slide Part 119 makes it move to the second position by primary importance, can complete closure state to the switching of cock.

In addition, linear incision anastomat 100 also includes switch protecting structure, this switch protecting structure is in order to prevent trigger shaft 117 and closure bar 116 not when precalculated position (closure do not put in place), the rotation of switch knob, thus when avoiding closure to put in place but Closure state can not be completed to the switching of cock.

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

Linear incision anastomat 100 closes when not putting in place, when locating piece 2084 is in first paragraph 1143, the first switch knob 208 are restricted from rotation is merely able to slide axially.After linear incision anastomat 100 closure puts in place, locating piece 2084 moves During in second segment 1145, locating piece 2084 has the space of rotation in second segment 1145, and the first switch knob 208 can be turned Dynamic.Make similar setting on second switch knob 209, repeat no more.Thus, when linear incision anastomat 100 closes and does not put 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.The switch protecting structure of second includes setting Put the stopper slot 2072 on switching push rod 207, the gathering sill 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 pass through the end of stopper slot 2072 and spacer pin 1123 by gathering sill 1121 limit can only on move down Dynamic.Stopper slot 2072 includes first paragraph 2073 and second segment 2075, is in l shape on the whole, first paragraph 2073 is from second segment 2075 Extend after the bending of end.

Linear incision anastomat 100 closes when not putting in place, and spacer pin 1123 is located in first paragraph 2073 and by first paragraph 2073 inwall stops so that switching push rod 207 cannot be promoted, and then switching push rod 207 will not drive the first switch knob 208 and second switch knob 209 rotate, thus avoid closure when not putting in place switch knob be rotated at random, be unlikely to occur closing Closing switch knob after putting in place but cannot be with the situation of locating part 206 cooperation.

It is additionally provided with first paragraph 2073 and make spacer pin 1123 be maintained at the elastic construction 2077 in first paragraph 2073.Elasticity Structure 2077 is shell fragment or other flexible members.

In linear incision anastomat 100 closing course, closure bar 116 moves, and the pushing portion 1164 on closure bar 116 advances While so that spacer pin 1123 is increased in gathering sill 1121, make spacer pin 1123 overcome the elastic force of shell fragment to move upwards simultaneously. After closure puts in place, spacer pin 1123 just moves to the connectivity part of first paragraph 2073 and second segment 2075.Switching is now promoted to push away Bar 207, spacer pin 1123 can enter into second segment 2075 and slide in second segment 2075, do not affect to change switching push rod 207 Slip.

In the present embodiment, pushing portion 1164 is inclined-plane.While closure bar 116 advances, inclined-plane is supported with spacer pin 1123 The height at the position connecing is gradually increased, thus constantly promoting spacer pin 1123 to rise in gathering sill 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, does not affect to close the lifting to spacer pin 1123 before putting in place. In the present embodiment, because closure bar 116 is motionless after closure puts in place, pushing portion 1164 is arranged on closure bar 116, in axial direction Do not need the space that more pushing portions 1164 advance, beneficial to overall structure design.

Refer to Figure 26 to 28, between operating parts 119 and shell 111, be additionally provided with operation indicating structure, in order to point out to grasp Switching between its primary importance and second position for the workpiece 119, user can easily perceive whether complete switching action.

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

After 119 groups of operating parts is assigned in shell 111, raised 1195 can slide in locating slot 1116.When the first groove 1191 When coordinating with the first salient point 1112, operating parts 119 is located at its primary importance, when the second groove 1193 is coordinated with the second salient point 1114 When, operating parts 119 is located at its second position.

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

Second implementation: operation indicating structure includes the first Magnet 1197 and second being arranged on operating parts 119 Magnet 1198, and it is arranged on the first Hall switch on shell 111 and the second Hall switch (not shown).First Magnet 1197 touches When sending out the first Hall switch, operating parts 119 is located at its primary importance, when the second Magnet 1198 triggers the second Hall switch, operation Part 119 is located at its second position.By 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, make user obtain prompting.

With reference to Figure 22 to Figure 25, sewing assembly 118 includes nail anvil 1181, nail bin 1182 and ejector pin in order to store suturing nail Plate 1183.Wherein, nail anvil 1181 is fixing with nail anvil left socle 112 and nail anvil right support 113, and nail bin 1182 is then left relative to nail anvil to be propped up Frame 112 and nail anvil right support 113 can slide axially, and formed to place tissue to be stapled between nail bin 1182 and nail anvil 1181 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 with respect to nail bin 1182 Dynamic, nail pushing plate 1183 promotes advance by trigger shaft 117, thus suturing nail is released nail bin 1182 completing to fire.

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 closure puts in place, closure bar 116 is slack, and trigger shaft 117 continues Advance and promote nail pushing plate 1183 to advance, complete to fire.After the completion of percussion, when trigger shaft 117 retreats alone, nail bin 1182, push away Nail-plate 1183 is motionless, and when closing bar 116 retrogressing, nail bin 1182, nail pushing plate 1183 retreat together.

Also include detecting the position detecting element 1185 of nail pushing plate 1183 position in sewing assembly 118.Position is detected Element 1185 is arranged on nail anvil left socle 112 or nail anvil right support 112.The nail installed using position detecting element 1185 detection Whether storehouse is new nail bin, it is to avoid faulty operation.

As shown in figure 23, it is that trigger shaft 117 moves to the position that will fire, now nail pushing plate 1183 is not yet promoted. Position detecting element 1185 can sense nail pushing plate 1183, illustrates that nail pushing plate 1183 is not promoted, and nail bin 1182 is new nail bin, Can be normally carried out firing.

As shown in figure 24, after the completion of percussion, nail pushing plate 1183 is released by trigger shaft 117, and position detecting element 1185 will Can't detect nail pushing plate 1183.So, when nail bin 1182 is followed closure bar 116 and returned at maximum jaw 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 it is provided with position detecting element 1185, can easily obtain Know whether nail bin 1182 completed ejector pin, if be new, it is to avoid used nail bin is carried out with percussion operation.

Position detecting element 1185 can be photoswitch.After 110 groups catcher shanks of work, photoswitch and handle Control module communication connection in portion, before and after nail pushing plate 1183 is pushed to nail bin 1182, the signal of telecommunication that photoswitch produces is different, Make system can know whether nail pushing plate 1183 position changes.Control module can connect alarm module, to carry to user Show.Certainly, control module can also directly detect after nail bin 1182 is not new nail bin, does not generate jet instruction.

Position detecting element 1185 can also be microswitch or proximity switch, can before and after the change of nail pushing plate 1183 position To trigger microswitch or proximity switch, produce the different signals of telecommunication, make the signal intensity that control module receives, such that it is able to Know whether nail pushing plate 1183 has to be promoted.

Additionally, 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 Nail bin 1182 be whether new nail bin scheme can equally be well applied to close bar 116, trigger shaft 117 individually arranges driving machine The anastomat of structure.

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

Ginseng Figure 29, closure bar 116 is placed side by side with trigger shaft 117, and closure bar 116 has the top covering trigger shaft 117, This top is provided with the axial arranged indicating area 1165 along closure bar 116.Instruction unit 1174 is provided with trigger shaft 117, Trigger shaft 117, with respect to during closure bar 116 motion, moves in region corresponding in indicating area 1165 for the instruction unit 1174.

The position of instruction unit 1174 on trigger shaft 117 when the first end of indicating area 1165 corresponding closure bar 116 closure puts in place Put.Indicating area 1,165 second end relative with the first end then position in order to instruction unit 1174 when indicating that percussion puts in place.Change speech It, after closure puts in place, instruction unit 1174 just moves to the first end of indicating area 1165, aligns with first end.Now slide Dynamic operating parts 119 makes locating part 206 transition status.Trigger shaft 117 moves on, and instruction unit 1174 moves on therewith until fortune Move the second end of indicating area 1165, align with the second end, now trigger shaft 117 pushes nail pushing plate 1183 to nail bin 1182 Arrival can fire the position of suturing nail, i.e. firing position.

The top setting fluting 1166 of closure bar 116.The both sides of fluting 1166 are provided with indicating area 1165.Instruction area The region that domain 1165 is formed for graduation mark is it is also possible to be attached to close the mark at the top of 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 the top of closure bar 116.

Additionally, instruction unit 1174 can also be below the top being fully located at 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, and the two ends of the two are divided Do not align, it has also been observed that the motion conditions of instruction unit 1174.Transmission region can be formed for setting transparent material, also may be used To be that setting engraved structure is formed.

Above-mentioned safety indicating structure can play suggesting effect when linear Endo-GIA 100 is using electric drive mode. Additionally, linear incision anastomat 100 also can arrange manual adjustment structure, handss are executed with the manual operation when electric model lost efficacy Art.And above-mentioned safety indicating structure, when anastomat uses manual mode, can accurately control make position, firing position And percussion terminate after the position return of closure bar 116.

Wherein, instruction unit 1174 moves to explanation closure during the first end of indicating area 1165 and puts in place, can be with slide Part 119 carries out closure state to the switching of cock.Explanation when instruction unit 1174 moves 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 During one end, explanation closure bar 116, trigger shaft 117 have returned to initial position.

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

Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art Say, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.

Claims

1. a kind of linear incision anastomat is it is characterised in that include

Shell；

Trigger shaft, is movably arranged with respect to shell；

Closure bar, is movably arranged with respect to shell；

Locating part, has restriction described closure bar and separates position with the link position of trigger shaft relative motion, the described restriction of releasing Put, when wherein said locating part is in link position, described closure bar can be driven during described trigger shaft motion to move together, institute When stating locating part and being in separation point position, described trigger shaft can relatively described closure bar motion；

Operating parts, activity group is assigned in the outside of described shell, in order to make described locating part between link position and separation point position Conversion, described operating parts has primary importance and the opposite shell post exercise second position, wherein operating parts on the housing In described primary importance, described operating parts is inoperative to described locating part, described operating parts in the described second position, institute State operating parts and drive described locating part dislocation.

2. linear incision anastomat according to claim 1 is it is characterised in that described operating parts is along parallel to described percussion The relatively described shell motion of the axially direction of bar.

3. linear incision anastomat according to claim 1 is it is characterised in that described locating part is also cross described percussion Bar and closure bar, wherein in described link position, simultaneously spacing described closure bar and described trigger shaft in described locating part axial direction, Make described closure bar and described trigger shaft geo-stationary；In described separation point position, described locating part and described trigger shaft disengage with Do not stop described trigger shaft in the axial direction.

4. linear incision anastomat according to claim 1 is it is characterised in that described linear incision anastomat also includes cutting Change knob, described operating parts drives locating part motion, wherein said trigger shaft by the cooperation of described switch knob and locating part When driving described closure bar to move to precalculated position, described locating part follows described trigger shaft and closure bar is moved to and cut with described Change the position that knob matches, not when described precalculated position, described locating part is in can not be with for described trigger shaft and closure bar The position that described switch knob matches.

5. linear incision anastomat according to claim 4 is it is characterised in that described linear incision anastomat also includes following closely Anvil left socle, nail anvil right support, nail bin left socle, nail bin right support, wherein nail anvil left socle and nail anvil right support are all and shell It is fixedly connected, trigger shaft and closure bar are all clipped between nail bin left socle and nail bin right support, nail bin left socle and the nail bin right side are propped up Frame is then all clipped between nail anvil left socle and nail anvil right support, and described locating part passes through described nail bin left socle, trigger shaft, closure Bar and nail bin right support, the two ends of described locating part are slidably matched with described anvil left socle and nail anvil right support respectively.

6. linear incision anastomat according to claim 5 is it is characterised in that described linear incision anastomat also includes cutting Change protection structure, described switch protecting structure is in order to prevent described trigger shaft and closure bar not when precalculated position, described switching The rotation of knob.

7. linear incision anastomat according to claim 6 is it is characterised in that described switch protecting structure includes being arranged on Locating piece on described switch knob, the stopper slot being arranged on nail bin left socle and/or nail bin right support, described stopper slot bag Include first paragraph and second segment, when wherein said locating piece is in described first paragraph, described switch knob is restricted from rotating, institute State closure bar drive stopper slot motion make described locating piece be located at second segment in when, described switch knob can be rotated.

8. linear incision anastomat according to claim 5 is it is characterised in that described linear incision anastomat also includes setting Put the switching push rod being slidably connected inside the housing and with shell, described switching push rod is connected with described operating parts, in order to drive Switch knob rotates.

9. linear incision anastomat according to claim 8 is it is characterised in that described switch protecting structure includes being arranged on Stopper slot on described switching push rod, the gathering sill being arranged on nail anvil left socle and/or nail anvil right support, spacer pin, setting Pushing portion on closure bar or trigger shaft, wherein said spacer pin passes through described stopper slot and the end of spacer pin is led by described Move up and down to groove guiding, described stopper slot includes first paragraph and second segment, described spacer pin is located at the time limit in described first paragraph Make switching push rod opposite shell motion, when spacer pin is located in described second segment, switching push rod can opposite shell move, described Switch protecting structure also includes the elastic construction making described spacer pin be maintained in described first paragraph, and percussion followed by described closure bar When bar moves together, described pushing portion can drive described spacer pin to overcome the resistance of elastic construction to move to second by first paragraph Section.

10. linear incision anastomat according to claim 1 is it is characterised in that between described operating parts and described shell It is provided with operation indicating structure, in order to point out switching between its primary importance and second position for the operating parts, described operation carries Show that structure includes the first groove, the second groove and the projection between two grooves being arranged on operating parts, and be arranged on The first salient point on shell, the second salient point and the locating slot between two salient points, described projection can be in described locating slot Slide, when described first groove and the first salient point coordinate, described operating parts is located at described primary importance, when described second groove With during the second salient point cooperation, described operating parts is located at the described second position；Or, described operation indicating structure includes being arranged on operation The first Magnet on part and the second Magnet, and it is arranged on the first Hall switch on shell and the second Hall switch, described first When Magnet triggers described first Hall switch, described operating parts is located at described primary importance, described second Magnet triggering described the During two Hall switch, described operating parts is located at the described second position.