Nailing safety device for anastomat

Abstract

The invention relates to the technical field of anastomat structures, in particular to a stapling safety device for an anastomat. The device comprises a clamping plate and a bumper, a sliding groove is formed in the clamping plate in the length direction, and the bumper is guided by the sliding groove to slide front and back. The front end of the bumper is connected with a push button, an elastic touch panel is arranged at the upper part of the push button, the contact is positioned right above a forward and backward moving path of the push button, the bumper drives the push button to move backwards when moving backwards, and the elastic touch panel can contact the contact and keep the contact in a jacked state; when the bumper moves forwards, the push button is driven to move forwards, and the elastic touch plate releases the contact. According to the safety device of the anastomat, the push button is arranged at the front end of the safety rod, it can be guaranteed that the contact of the microswitch is always triggered when the cavity lens is installed, the situation that the contact cannot be triggered due to the size or assembly problem in the using process is avoided, and it is guaranteed that the safety device of the anastomat can be normally used.

Description

Technical Field

[0001] The invention relates to the technical field of stapler structures, in particular to a stapler stapling safety device. Background Art

[0002] The main structure of the existing stapler has a stapling safety bar structure, which is mainly used to determine whether the stapler cavity lens is installed: when the cavity lens is not installed, the steering lock is not pushed backward, and the stapling safety bar is not pushed back by the steering lock; when the stapler cavity lens is installed, the steering lock is pushed backward and drives the stapling safety bar to move backward, which will trigger the contact switch on the PCBA, thereby triggering the card swiping (waiting to fire) program. After the cavity lens is removed, the stapling safety bar automatically resets.

[0003] In actual production and use, due to the size and assembly problems of the stapler safety rod, the micro switch cannot be triggered when the stapler safety rod retreats, affecting the normal use of the stapler. Summary of the invention

[0004] In response to the shortcomings in the above-mentioned existing production technology, the present application provides a stapler stapler safety device, which can ensure that the contacts of the microswitch are always triggered when the cavity lens is installed, avoiding the situation where the contacts cannot be triggered due to size or assembly problems during use, and ensuring that the stapler safety device can be used normally.

[0005] The technical solution adopted by the present invention is as follows: A stapler stapler safety device comprises a clamp and a safety rod, wherein the upper portion of the clamp is connected to a circuit board, the lower end surface of the circuit board is connected to a micro switch, a protruding contact is arranged at the lower portion of the micro switch, a slide groove is arranged in the clamp along the length direction, and the safety rod is guided by the slide groove to slide forward and backward; the front end of the safety rod is connected to a push button, an elastic touch plate is arranged at the upper portion of the push button, and the contact is located directly above the forward and backward movement path of the push button, when the safety rod moves backward, the push button is moved backward with it, and the elastic touch plate can contact the contact and keep the contact in a lifted state; when the safety rod moves forward, the push button is moved forward with it, and the elastic touch plate releases the contact.

[0006] Furthermore, the safety lever comprises a rod body and a linkage portion arranged at the front end of the rod body, the rod body is arranged in the slide groove and can slide back and forth along the slide groove, and the push button is detachably connected to the linkage portion.

[0007] Furthermore, a first snap-fit ​​groove is provided on one end face of the linkage part, a first snap-fit ​​part is provided on the push button, the first snap-fit ​​part extends into the first snap-fit ​​groove and is snap-fitted with the first snap-fit ​​groove, a second snap-fit ​​groove is provided on the push button, the second snap-fit ​​groove is located next to the first snap-fit ​​part, a second snap-fit ​​part is provided on the linkage part, the second snap-fit ​​part is located next to the first snap-fit ​​groove, the second snap-fit ​​part extends into the second snap-fit ​​groove and is snap-fitted with the second snap-fit ​​groove.

[0008] Furthermore, a guide plate is fixedly arranged inside the splint, a guide groove is arranged on the guide plate in the front-to-back direction, a guide block is arranged on one side of the push button, and the guide block is connected in the guide groove and can slide forward and backward along the guide groove.

[0009] Furthermore, an anti-dropping block is arranged on the side of the guide block facing away from the push button, the width of the anti-dropping block is greater than the width of the guide groove, and the anti-dropping block can prevent the guide block from falling off from one side of the guide groove.

[0010] Furthermore, the guide groove includes a first guide groove and a second guide groove that pass through the front and back, the width of the first guide groove is smaller than the width of the second guide groove, the guide block includes a first guide block and a second guide block that are arranged front and back and connected as a whole, the width of the first guide block is smaller than the width of the second guide block, the first guide block is arranged in the first guide groove and can move forward and backward along the first guide groove, and the second guide block is arranged in the second guide groove and can move forward and backward along the second guide groove.

[0011] Furthermore, a spring installation cavity is arranged in the rod body along the length direction, a spring is arranged in the spring installation cavity, one end of the spring contacts the bottom end surface of the spring installation cavity, a return plate is fixed in the clamping plate, the return plate is located on the moving path of the spring, and the other end of the spring can contact the return plate.

[0012] Furthermore, the rod body and the linkage part are connected as one body through a transition part, a first limiting end face of an arc-shaped structure is arranged in the clamping plate, and one end face of the transition part can be matched and contacted with the first limiting end face to form a first limit on the position of the safety rod.

[0013] Furthermore, two second limit end faces are arranged on the splint, and the two second limit end faces are located at the upper and lower parts of the end of the slide groove. A limit platform is respectively arranged at the upper and lower parts of the rod body, and the two second limit end faces are respectively located on the moving paths of the two limit platforms. The two second limit end faces can block the two limit platforms to form a second limit on the position of the safety rod.

[0014] Furthermore, one end of the elastic touch panel is connected to the push button to form a fixed end, and the other end of the elastic touch panel is separated from the push button to form a free end. The elastic touch panel is tilted from bottom to top from the fixed end to the free end.

[0015] The beneficial effects of the present invention are as follows: The present invention has a compact and reasonable structure and is easy to operate. A push button is arranged at the front end of the safety rod, which can ensure that the contacts of the micro switch are always triggered when the cavity lens is installed, thereby avoiding the situation that the contacts cannot be triggered due to size or assembly problems during use, and ensuring that the safety device of the stapler can be used normally. The spring arranged in the safety rod can drive the safety rod to return to its original position, thereby avoiding the situation that the safety rod cannot be reset after the cavity lens is removed and the nail is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of the present invention.

[0017] Figure 2 This is a three-dimensional diagram of the present invention after removing the safety lever and the push button.

[0018] Figure 3 This is a first perspective view of the safety lever and push button assembly structure of the present invention.

[0019] Figure 4 This is a second viewing angle of the safety lever and push button assembly structure of the present invention.

[0020] Among them: 1. clamping plate; 11. first limit end face; 12. second limit end face; 2. circuit board; 3. micro switch; 31. contact; 4. push button; 41. elastic touch plate; 42. anti-drop block; 43. first buckling part; 44. second buckling groove; 45. first guide block; 46. second guide block; 47. through hole; 5. safety rod; 51. rod body; 52. linkage part; 521. first buckling groove; 522. second buckling part; 53. transition part; 54. limit platform; 55. limit block; 6. spring; 7. guide plate; 71. first guide groove; 72. second guide groove; 8. return plate. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, a stapler safety device includes a clamp plate 1 and a safety rod 5. A slide groove is arranged in the clamp plate 1 along the length direction, and the safety rod 5 slides forward and backward guided by the slide groove. The front end of the safety rod 5 is connected to a push button 4, and the safety rod 5 can drive the push button 4 to move forward and backward.

[0023] like Figure 3 and Figure 4 As shown, the safety lever 5 includes a rod body 51 of a long strip structure and a linkage portion 52 arranged at the front end of the rod body 51, and the linkage portion 52 and the rod body 51 are integrally formed. The rod body 51 of the safety lever 5 is arranged in a slide groove and can slide forward and backward along the slide groove, and the slide groove plays a guiding and limiting role for the safety lever 5. The linkage portion 52 is detachably connected to the push button 4.

[0024] like Figure 3 As shown, two through holes 47 are provided on the push button 4, and the push button 4 is an injection molded part. During the injection molding process, it may be deformed due to the excessive wall thickness. The through holes 47 can avoid the occurrence of injection deformation.

[0025] like Figure 3 As shown, an elastic touch plate 41 is arranged on the upper part of the push button 4, one end of the elastic touch plate 41 is connected to the push button 4 to form a fixed end, and the other end of the elastic touch plate 41 is separated from the push button 4 to form a free end, and the elastic touch plate 41 is tilted from the fixed end to the free end from the bottom to the top. The upper part of the clamping plate 1 is detachably connected to the circuit board 2 by bolts, and the lower end surface of the circuit board 2 is connected to the micro switch 3. A protruding contact 31 is arranged on the lower part of the micro switch 3. When the contact 31 is lifted up, the micro switch 3 is triggered to work. The contact 31 is located directly above the forward and backward movement path of the push button 4. When the safety bar 5 moves backward, it drives the push button 4 to move backward, and the elastic touch plate 41 can contact the contact 31 and keep the contact 31 in the lifted state; when the safety bar 5 moves forward, it drives the push button 4 to move forward, and the elastic touch plate 41 releases the contact 31. The tilted shape of the elastic touch plate 41 makes the elastic touch plate 41 have a certain elasticity. When the contact 31 contacts and presses down the elastic touch plate 41, the free end of the elastic touch plate 41 forms an upward pressing force on the contact 31, thereby keeping the contact 31 always lifted up. This ensures that the contact 31 is always triggered when the cavity lens is installed, avoiding the situation where the contact 31 cannot be triggered due to size or assembly problems during use.

[0026] like Figure 3 and Figure 4 As shown, a concave first snap-fitting groove 521 is provided on one end surface of the linkage part 52, and a protruding first snap-fitting part 43 is provided on the push button 4, and the first snap-fitting part 43 extends into the first snap-fitting groove 521 and snap-fits with the first snap-fitting groove 521. A concave second snap-fitting groove 44 is provided on the push button 4, and the second snap-fitting groove 44 is located beside the first snap-fitting part 43. A protruding second snap-fitting part 522 is provided on the linkage part 52, and the second snap-fitting part 522 is located beside the first snap-fitting groove 521, and the second snap-fitting part 522 extends into the second snap-fitting groove 44 and snap-fits with the second snap-fitting groove 44. The linkage part 52 and the push button 4 form a good and stable detachable assembly relationship by means of the matching structure of the snap-fitting connection, so that the linkage part 52 can drive the push button 4 to move straightly forward and backward.

[0027] like Figure 2 and Figure 4 As shown, a guide plate 7 is fixedly arranged inside the clamp 1, a guide groove is arranged on the guide plate 7 along the front-to-back direction, a guide block is arranged on one side of the push button 4, the guide block is connected in the guide groove and can slide forward and backward along the guide groove, and the guide plate 7 plays a guiding role in the movement of the push button 4.

[0028] like Figure 4 As shown, an anti-dropping block 42 is provided on the side of the guide block facing away from the push button 4. The width of the anti-dropping block 42 is greater than the width of the guide groove. The anti-dropping block 42 can prevent the guide block from falling off from one side of the guide groove, thereby ensuring the stability of the push button 4 when moving.

[0029] like Figure 2 As shown, the guide groove includes a first guide groove 71 and a second guide groove 72 which are through the front and back. The first guide groove 71 and the second guide groove 72 are long strip structures, and the width of the first guide groove 71 is smaller than the width of the second guide groove 72.

[0030] like Figure 4 As shown, the guide block includes a first guide block 45 and a second guide block 46 which are arranged front and back and connected as one body. The first guide block 45 and the second guide block 46 are long strip structures, and the width of the first guide block 45 is smaller than the width of the second guide block 46. The first guide block 45 is arranged in the first guide groove 71 and can move forward and backward along the first guide groove 71, and the second guide block 46 is arranged in the second guide groove 72 and can move forward and backward along the second guide groove 72. When the second guide block 46 moves to the second guide groove 72 close to one end of the first guide groove 71, it cannot enter the first guide groove 71, thereby forming a limit to the movement of the push button 4.

[0031] like Figure 4 As shown, a spring installation cavity is provided in the rod body 51 of the safety rod 5 along the length direction, and a spring 6 is provided in the spring installation cavity, and one end of the spring 6 contacts the bottom end surface of the spring installation cavity. Figure 2 As shown, the return plate 8 is fixed inside the clamp 1, and the return plate 8 is located on the moving path of the spring 6, and the other end of the spring 6 can contact the return plate 8. When the safety rod 5 is pressed and moved, it drives the spring 6 to move in the direction of the return plate 8. When the spring 6 contacts the return plate 8, the spring 6 is compressed. When the pressure acting on the safety rod 5 disappears, the restoring force of the spring 6 drives the safety rod 5 back to its original position. A protruding limit block 55 is set on the side of the rod body 51 near one end of the rod body 51. The limit block 55 cooperates with the structure on the anastomosis device housing to limit the safety rod 5 when it moves to the left, so as to prevent the safety rod 5 from being pushed too far to the left by the steering lock.

[0032] like Figure 3 and Figure 4 As shown, the rod body portion 51 and the linkage portion 52 are connected as a whole through a transition portion 53. Figure 2 As shown, a first limiting end surface 11 of an arc-shaped structure is provided in the clamping plate 1, and one end surface of the transition portion 53 can be matched with the first limiting end surface 11 to form a first limiting position of the safety rod 5, as shown in FIG. Figure 1 Status shown.

[0033] like Figure 2As shown, two second limiting end surfaces 12 are provided on the clamping plate 1, and the two second limiting end surfaces 12 are located at the upper and lower parts of the end of the slide groove. Figure 3 As shown, a limit platform 54 is respectively provided at the upper and lower parts of the rod body 51, and the two second limit end surfaces 12 are respectively located on the moving paths of the two limit platforms 54. The two second limit end surfaces 12 can block the two limit platforms 54 to form a second limit on the position of the safety rod 5. Figure 1 Status shown.

[0034] The working principle of the present invention is as follows: when the cavity lens is installed on the stapler, the safety bar 5 is pressed and moved backward after the cavity lens is installed, and the backward movement of the safety bar 5 drives the push button 4 to move backward. When the push button 4 moves to a certain position, the elastic touch plate 41 of the push button 4 will trigger the contact 31 of the micro switch 3. Since the elastic touch plate 41 is elastic, it will always maintain an upward pressing force after touching the contact 31, so that when the cavity lens is installed, the contact 31 of the micro switch 3 is always triggered by the elastic touch plate 41, which avoids the situation that the contact 31 cannot be triggered due to size or assembly problems during the use of the stapler. After the cavity lens is removed, the spring 6 can drive the safety bar 5 and the push button 4 to return to the initial position.

[0035] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A stapler safety device, comprising a clamp and a safety rod, wherein the upper portion of the clamp is connected to a circuit board, the lower end surface of the circuit board is connected to a micro switch, and a protruding contact is provided at the lower portion of the micro switch, characterized in that: A slide groove is arranged inside the splint along the length direction, and the safety rod is guided by the slide groove to slide forward and backward; the front end of the safety rod is connected to a push button, and an elastic touch plate is arranged on the upper part of the push button, and the contact point is located directly above the forward and backward moving path of the push button. When the safety rod moves backward, the push button is also moved backward, and the elastic touch plate can contact the contact point and keep the contact point in a lifted state; when the safety rod moves forward, the push button is also moved forward, and the elastic touch plate releases the contact.

2. A stapler safety device for a stapler as claimed in claim 1, characterized in that: The safety lever comprises a rod body and a linkage portion arranged at the front end of the rod body, the rod body is arranged in the slide slot and can slide forward and backward along the slide slot, and the push button is detachably connected to the linkage portion.

3. A stapler safety device for a stapler as claimed in claim 2, characterized in that: A first buckling groove is arranged on one end face of the linkage part, a first buckling part is arranged on the push button, the first buckling part extends into the first buckling groove and is buckled with the first buckling groove, a second buckling groove is arranged on the push button, the second buckling groove is located beside the first buckling part, a second buckling part is arranged on the linkage part, the second buckling part is located beside the first buckling groove, the second buckling part extends into the second buckling groove and is buckled with the second buckling groove.

4. A stapler safety device for a stapler as claimed in claim 1, characterized in that: A guide plate is fixedly arranged inside the clamping plate, a guide groove is arranged on the guide plate in the front-to-back direction, a guide block is arranged on one side of the push button, and the guide block is connected in the guide groove and can slide forward and backward along the guide groove.

5. A stapler safety device for a stapler as claimed in claim 4, characterized in that: An anti-dropping block is arranged on the side of the guide block facing away from the push button, the width of the anti-dropping block is greater than the width of the guide slot, and the anti-dropping block can prevent the guide block from dropping off from one side of the guide slot.

6. A stapler safety device for a stapler according to claim 4 or 5, characterized in that: The guide groove includes a first guide groove and a second guide groove that pass through the front and back, the width of the first guide groove is smaller than the width of the second guide groove, the guide block includes a first guide block and a second guide block that are arranged front and back and connected as a whole, the width of the first guide block is smaller than the width of the second guide block, the first guide block is arranged in the first guide groove and can move forward and backward along the first guide groove, and the second guide block is arranged in the second guide groove and can move forward and backward along the second guide groove.

7. A stapler safety device for a stapler as claimed in claim 1, characterized in that: A spring installation cavity is arranged in the rod body along the length direction, a spring is arranged in the spring installation cavity, one end of the spring contacts the bottom end surface of the spring installation cavity, a return plate is fixed in the clamping plate, the return plate is located on the moving path of the spring, and the other end of the spring can contact the return plate.

8. The stapler safety device for a stapler according to claim 1, characterized in that: The rod body and the linkage part are connected as one body through a transition part, a first limiting end face of an arc structure is arranged in the clamping plate, and one end face of the transition part can be matched and contacted with the first limiting end face to form a first limiting position of the safety rod.

9. A stapler safety device for a stapler as claimed in claim 8, characterized in that: Two second limit end surfaces are arranged on the splint, and the two second limit end surfaces are located at the upper and lower parts of the end of the slide groove. A limit platform is respectively arranged at the upper and lower parts of the rod body, and the two second limit end surfaces are respectively located on the moving paths of the two limit platforms. The two second limit end surfaces can block the two limit platforms to form a second limit on the position of the safety rod.

10. The stapler safety device for a stapler according to claim 1, characterized in that: One end of the elastic touch panel is connected to the push button to form a fixed end, and the other end of the elastic touch panel is separated from the push button to form a free end. The elastic touch panel is tilted from bottom to top from the fixed end to the free end.

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