Hinge structure of endoscope anastomat assembly

Abstract

The utility model discloses a hinge structure of an endoscopic anastomat component, which comprises a first bump and a second bump which are arranged on the component and a rotary buckle arranged in a device body, the rotary buckle is rotatably arranged in the device body around the inner wall of the device body, one end of the rotary buckle facing the component is provided with a front-end open slot buckled with the first bump, and the other end of the rotary buckle is provided with a rear-end open slot buckled with the second bump. The end, facing the device body, of the rotary buckle is provided with a jacking sliding block used for jacking the steering linkage rod and a rear end open groove used for buckling and unlocking the linkage rod, and after the assembly stretches into the device body, the first protruding block is buckled with the front end open groove, and the second protruding block is buckled with the steering linkage rod. And the rotating action is omitted, and the risk that hinging cannot be achieved is avoided.

Description

Technical Field

[0001] The utility model relates to the structural field of a laparoscopic stapler assembly, in particular to a hinge structure of a laparoscopic stapler assembly. Background Art

[0002] The traditional articulated structure of the stapler assembly needs to be inserted into the body of the instrument and rotated to complete the articulation action. The action steps are relatively cumbersome. When the rotation angle of the assembly is too small, there is a risk of failure to articulate, resulting in the inability to use the instrument. In response to this situation, the present application proposes a solution. Summary of the invention

[0003] Purpose of the utility model: The purpose of the utility model is to provide an articulated structure of a laparoscopic stapler assembly, which can quickly complete the connection between the assembly and the body of the laparoscopic stapler, is easy to disassemble, eliminates the need for rotation, and avoids the risk of failure to articulate.

[0004] Technical solution: The hinge structure of a laparoscopic stapler assembly described in the utility model includes a protrusion 1, a protrusion 2 and a swivel buckle arranged in the body of the instrument. The swivel buckle is rotatably arranged in the body of the instrument around the inner wall of the body of the instrument. A front end slot that is swivel-locked with the protrusion 1 is arranged at one end of the swivel buckle facing the assembly, a lifting slider for lifting a steering link and a rear end slot for swivel-locking the unlocking link are arranged at one end of the swivel buckle facing the body, the lifting slider and the rear end slot are both arranged at one end of the swivel buckle facing the body, the protrusion 1 is arranged at the end of the assembly facing the body, the protrusion 2 is arranged at the tail of the assembly facing the body, after the assembly is extended into the body of the instrument, the protrusion 1 is swivel-locked with the front end slot, and the protrusion 2 is swivel-locked with the steering link.

[0005] Preferably, the rotary buckle is connected to a reset spring fixed inside the device body, and the reset spring is fixed inside the device body in an arc shape along the circumference of the inner wall of the device body, and both ends of the reset spring are respectively fixedly connected to the rotary buckle.

[0006] The reset spring is used to reset the rotary buckle without being affected by external force.

[0007] Preferably, the front end slot includes a bevel block and a groove, the end face of the bevel block facing the protrusion is a bevel inclined along the axial direction of the device body, and the groove is arranged behind the bevel block along the axial direction of the device body and the opening of the groove is larger than the protrusion.

[0008] The inclined plane block is provided to facilitate applying a thrust to the inclined plane block when the protrusion 1 follows the component to extend into the device body, so as to push the inclined plane block to rotate along the circumference of the component, thereby driving the rotary buckle to rotate along the circumference of the component until the groove located behind the inclined plane block is exposed, and the rotary buckle is reset under the elastic force of the reset spring, and the protrusion 1 enters the groove.

[0009] Preferably, the lifting slider and the end of the steering link facing the component are located at the same height inside the device body.

[0010] The arrangement of the lifting slider and the end of the steering link facing the component at the same height inside the device body can ensure that when the lifting slider rotates circumferentially along the inner wall of the device body following the rotary buckle, the end of the steering link facing the component is lifted, making it easier for the second protrusion set on the component to extend into the steering link.

[0011] Preferably, the slot of the rear end slot faces one side of the device body, and the slot is an inverted right-angled trapezoidal structure. The inclined surface inside the slot fits with the inclined surface on one side of the end of the unlocking connecting rod facing the component, and a gap is reserved between the right-angle surface inside the slot and the right-angle surface of the end of the unlocking connecting rod facing the component.

[0012] The slot of the rear end slot is designed with an inverted right-angled trapezoidal structure, so that when the unlocking link moves axially along the device body, the side wall of the unlocking link in contact with the inner wall of the slot applies an oblique downward force to the slot of the rear end slot, thereby pushing the rear end slot to rotate circumferentially along the inner wall of the device body, thereby driving the entire rotary buckle to rotate.

[0013] The reserved gap between the right-angled surface inside the notch and the right-angled surface at the end of the unlocking link facing the component side facilitates the swivel buckle to not be stuck by the end of the unlocking link and unable to rotate when rotating around the device body.

[0014] Preferably, the steering link is provided with a slot which snaps into place with the second protrusion.

[0015] Preferably, one end of the unlocking link is connected to the rotary buckle, and the other end is provided with an unlocking button. The unlocking link is axially connected with an unlocking spring, which is fixed in the device body and has two ends fixedly connected to the unlocking link respectively. The unlocking button drives the unlocking link to move axially along the device body.

[0016] Working principle: when the component is extending into the device body, the first protrusion pushes the inclined surface of the inclined surface block in the front end slot, thereby driving the rotary buckle to rotate along the circumference of the component until the groove behind the inclined surface block is exposed. The rotary buckle is reset under the elastic force of the reset spring, and the first protrusion enters the groove. When the rotary buckle rotates along the circumference of the component, it drives the lifting slider to follow the rotary buckle to rotate along the circumference of the inner wall of the device body, and lifts the end of the steering link toward one side of the component, so that the second protrusion set on the component can be extended into the slot in the steering link. When the rotary buckle is reset under the action of the reset spring, the lifting slider follows the reset, and the steering link is no longer lifted and is also reset to the initial state. At this time, the second protrusion extends into the slot of the steering link and buckles with the steering link.

[0017] When the component is in the process of separating from the device body, press the unlocking button at the tail of the unlocking link, and the unlocking button drives the unlocking link to move axially along the device body. At this time, the inclined surface at the end of the unlocking link applies force to the inclined surface inside the mouth of the rear end slot, thereby pushing the rear end slot to rotate along the circumference of the device body, thereby driving the swivel buckle as a whole to rotate along the circumference of the device body. At this time, protrusion 1 gradually emerges from the groove of the front end slot, and the lifting slider lifts the steering link again, and protrusion 2 separates from the slot of the steering link. At this time, pull out the component, release the unlocking button, the unlocking link is reset under the elastic force of the unlocking spring, and the swivel buckle is reset under the elastic force of the reset spring.

[0018] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0019] The present application has a simple structure. It only requires extending the component to use protrusions one and two to complete the positioning connection between the component and the device body, avoiding the risk of failure to hinge. At the same time, it is easy to disassemble. Only the unlocking button needs to be pressed to unlock the limit of the device body on protrusions one and two, and the component can be directly pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model from one angle.

[0021] Figure 2 This is a three-dimensional diagram of the utility model after removing the outer shell of the body.

[0022] Figure 3 This is an enlarged front view of the connection point when the component and the body of the utility model are connected together.

[0023] Figure 4 This is an enlarged front view of the connection between the component and the body of the utility model when they are not connected together.

[0024] Figure 5 This is a left view of the utility model when the assembly and the body are not connected together.

[0025] Figure 6 This is an enlarged left view of the connection between the component and the body of the utility model when they are not connected together

[0026] Figure 7 This is an enlarged left view of the connection point when the component and the body of the utility model are connected together.

[0027] Figure 8 This is an enlarged rear view of the connection point when the component and the body of the utility model are connected together.

[0028] Fig. 9 It is a three-dimensional structural diagram of the rotary buckle in the utility model.

[0029] Among them: 1. component; 2. protrusion 1; 3. protrusion 2; 4. body; 5. rotary buckle; 6. steering link; 7. unlocking link; 8. reset spring; 9. gap; 51. front end slot; 52. lifting slider; 53. rear end slot; 61. slot; 71. unlocking button; 72. unlocking spring; 511. ramp block; 512. groove. DETAILED DESCRIPTION

[0030] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0031] See attached Figures 1 to 9 , the hinge structure of the laparoscopic stapler assembly shown in the utility model comprises a protrusion 2, a protrusion 2 3 arranged on the assembly 1 and a swivel buckle 5 arranged in the body 4, wherein the swivel buckle 5 is rotatably arranged in the body 4 around the inner wall of the body 4, a front end slot 51 for snapping with the protrusion 2 is arranged at one end of the swivel buckle 5 facing the assembly, a lifting slider 52 for lifting the steering link 6 and a rear end slot 53 for snapping the unlocking link 7 are arranged at one end of the swivel buckle 5 facing the body 4, the lifting slider 52 and the rear end slot 53 are both arranged at one end of the swivel buckle 5 facing the body 4, the protrusion 2 3 is arranged at the end of the assembly 1 facing the body 4, the protrusion 2 3 is arranged at the tail of the assembly 1 facing the body 4, after the assembly 1 is extended into the body 4, the protrusion 2 is snapped with the front end slot 51, and the protrusion 2 3 is snapped with the steering link 6, thereby completing the hinge connection between the assembly 1 and the body 5.

[0032] In this embodiment, the rotary buckle 5 is connected to a reset spring 8 fixed inside the device body 4. The reset spring 8 is fixed in the device body 4 in an arc shape along the circumference of the inner wall of the device body 4, and both ends are fixedly connected to the rotary buckle 5 respectively. The reset spring 8 is set to reset the rotary buckle 5 without being affected by external force.

[0033] In this embodiment, the front end slot 51 includes a bevel block 511 and a groove 512, wherein the end surface of the bevel block 511 facing the protrusion 2 side is a bevel inclined along the axial direction of the device body 4, and the groove 512 is arranged behind the bevel block 511 along the axial direction of the device body 4, and the opening of the groove 512 is larger than the protrusion 2. The arrangement of the bevel block 511 is convenient for the protrusion 2 to follow the component 1 to extend into the device body 4, and apply a thrust to the bevel block 511, so as to push the bevel block 511 to rotate along the circumference of the device body 4, thereby driving the swivel buckle 5 to rotate along the circumference of the device body 4, until the groove 512 located behind the bevel block 511 is exposed, and the swivel buckle 5 is reset under the elastic force of the reset spring 8, and the protrusion 2 enters the groove 512.

[0034] In this embodiment, the lifting slider 52 and the end of the steering link 6 facing the component 1 are located at the same height inside the device body 4. Such a design can ensure that the lifting slider 52 lifts the end of the steering link 6 facing the component 1 when following the rotary buckle 5 to rotate circumferentially along the inner wall of the device body 4, so as to facilitate the protrusion 23 set on the component 1 to extend into the steering link 6.

[0035] In this embodiment, the slot of the rear end slot 53 faces the side of the device body 4, and the slot is an inverted right-angled trapezoidal structure. The inclined surface inside the slot fits with the inclined surface on the side of the end of the unlocking link 7 facing the component 1, and a gap 9 is reserved between the right-angle surface inside the slot and the right-angle surface of the end of the unlocking link 7 facing the component 1.

[0036] The slot opening of the rear end slot 53 is designed as an inverted right-angled trapezoidal structure, so that when the unlocking link 7 moves axially along the device body 4, the side wall of the unlocking link 7 in contact with the inner wall of the slot applies an oblique downward force to the slot opening of the rear end slot 53, thereby pushing the rear end slot 53 to rotate circumferentially along the inner wall of the device body 4, thereby driving the entire rotary buckle 5 to rotate.

[0037] The gap 9 reserved between the right-angled surface inside the notch and the right-angled surface at the end of the unlocking link 7 facing the component 1 facilitates the swivel buckle 5 to not be stuck by the end of the unlocking link 7 and unable to rotate when rotating around the body 4.

[0038] In this embodiment, the steering link 6 is provided with a slot 61 which is engaged with the protrusion 2 3 .

[0039] In this embodiment, one end of the unlocking link 7 is connected to the rotary buckle 5, and the other end is provided with an unlocking button 71. The unlocking link 7 is axially connected with an unlocking spring 72. The unlocking spring 72 is fixed in the device body 4, and both ends are fixedly connected to the unlocking link 7 respectively. The unlocking button 71 drives the unlocking link 7 to move axially along the device body 4, and the unlocking spring 72 completes the resetting of the unlocking link 7.

[0040] When the present application is in operation, when the component 1 is extending into the device body 4, the protrusion 12 pushes the inclined surface of the inclined surface block 511 in the front end groove 51, thereby driving the rotary buckle 5 to rotate along the circumference of the device body 4 until the groove 512 located behind the inclined surface block 511 is exposed. The rotary buckle 5 is reset under the elastic force of the reset spring 8, and the protrusion 12 enters the groove 512. During the circumferential rotation of the rotary buckle 5 along the device body 4, the lifting slider 52 is driven to follow the rotary buckle 5 to rotate along the circumferential direction of the inner wall of the device body 5, and the steering link 6 is lifted toward the end of the component 1, so that the protrusion 23 set on the component 1 is extended into the groove 61 in the steering link 6. When the rotary buckle 5 is reset under the action of the reset spring 8, the lifting slider 52 is reset accordingly, and the steering link 6 is no longer lifted and is also reset to the initial state. At this time, the protrusion 23 extends into the groove 61 of the steering link 6 and is locked with the steering link 6.

[0041] When the component 1 is in the process of being separated from the device body 4, the unlocking button 71 at the tail of the unlocking link 7 is pressed, and the unlocking button 71 drives the unlocking link 7 to move axially along the device body 4. At this time, the inclined surface at the end of the unlocking link 7 applies force to the inclined surface inside the notch of the rear end slot 53, thereby pushing the rear end slot 53 to rotate along the circumference of the device body 4, thereby driving the swivel buckle 5 to rotate along the circumference of the device body 4 as a whole. At this time, the protrusion 2 gradually emerges from the groove 512 of the front end slot 51, and the lifting slider 52 lifts the steering link 6 again, and the protrusion 23 is separated from the slot 61 of the steering link 6. At this time, the component 1 is pulled out, and the unlocking button 71 is released. The unlocking link 7 is reset under the elastic force of the unlocking spring 72, and the swivel buckle 5 is reset under the elastic force of the reset spring 8.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A hinge structure of a laparoscopic stapler assembly, characterized in that: It includes a protrusion 1 and a protrusion 2 arranged on the component and a swivel buckle arranged in the device body. The swivel buckle is rotatably arranged in the device body around the inner wall of the device body. A front end slot that is locked with the protrusion 1 is arranged at one end of the swivel buckle facing the component, a lifting slider for lifting the steering connecting rod and a rear end slot for locking and unlocking the connecting rod are arranged at one end of the swivel buckle facing the device body, the lifting slider and the rear end slot are both arranged at one end of the swivel buckle facing the device body, the protrusion 1 is arranged at the end of the component facing the device body, the protrusion 2 is arranged at the tail of the component facing the device body, after the component is extended into the device body, the protrusion 1 is locked with the front end slot, and the protrusion 2 is locked with the steering connecting rod.

2. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: The rotary buckle is connected with a return spring fixed inside the device body. The return spring is fixed inside the device body in an arc shape along the circumference of the inner wall of the device body, and both ends of the return spring are respectively fixedly connected to the rotary buckle.

3. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: The front end slot includes a bevel block and a groove, the end surface of the bevel block facing the protrusion is a bevel inclined along the axial direction of the device body, the groove is arranged behind the bevel block along the axial direction of the device body and the opening of the groove is larger than the protrusion.

4. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: The lifting slide block and the end of the steering link facing the component are located at the same height in the device body.

5. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: The slot of the rear end slot faces one side of the device body, and the slot is an inverted right-angled trapezoidal structure. The inclined surface inside the slot fits with the inclined surface on one side of the end of the unlocking connecting rod facing the component, and a gap is reserved between the right-angle surface inside the slot and the right-angle surface of the end of the unlocking connecting rod facing the component.

6. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: The steering link is provided with a slot which is snapped with the second protrusion.

7. The hinge structure of a laparoscopic stapler assembly according to claim 1, characterized in that: One end of the unlocking link is connected to the rotary buckle, and the other end is provided with an unlocking button. The unlocking link is axially connected with an unlocking spring, which is fixed in the device body and fixedly connected to the unlocking link at both ends. The unlocking button drives the unlocking link to move axially along the device body.

Images