Forceps rod dismounting structure applied to needle forceps

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a forceps rod dismounting structure applied to needle forceps. In order to solve the problems that in the prior art, a needle holding forceps transmission structure is prone to aging and meets the requirements for part adaptation of different companies, the utility model provides a forceps rod dismounting structure applied to needle holding forceps, and the forceps rod dismounting structure comprises a forceps rod and a driving piece capable of driving the forceps rod to move back and forth in the linear direction, and a detachable transmission assembly is arranged between the forceps rod and the driving piece. One end of the detachable transmission assembly is connected to the driving piece, and the other end of the detachable transmission assembly is connected to the forceps rod. The connection relation between the detachable transmission assembly and the forceps rod is switched between mutual connection and mutual separation, or the connection relation between the detachable transmission assembly and the driving piece is switched between mutual connection and mutual separation. According to the needle holding forceps, the detachable transmission assembly which can be separately connected through displacement changes is in driving connection with the driving piece and the forceps rod, and the dismounting and mounting efficiency of the needle holding forceps is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical equipment, especially relates to a pair of forceps rod dismounting structure applied to needle holder. BACKGROUND

[0002] The needle holder is a medical device for holding a suture needle, mainly using the forceps head to hold the suture needle, and the movable handle at the rear end is used to control the opening and closing of the forceps head to adjust to different suture needles. The intermediate force transmission mechanism of the handle control forceps head is different in different companies.

[0003] For example, the utility model discloses a torque-adjustable needle holder [application number: 202311868642.9]. The utility model includes forceps rod seat, forceps rod, first handle and second handle, one end of forceps rod is fixedly connected to one end of forceps rod seat, first handle and second handle are hingedly connected to the other end of forceps rod seat respectively;The pull rod is slidably connected in the forceps rod, the end away from the forceps rod seat on the forceps rod is provided with the movable forceps head and the fixed forceps head, the first handle, the second handle and the pull rod are provided with the transmission mechanism, the transmission mechanism is used for transmitting the force when the first handle and the second handle are opened and closed to the movable forceps head;The first handle, the second handle and the pull rod are provided with the gear adjusting mechanism for adjusting the distance between the transmission mechanism and the fixed forceps head. Although the utility model adjusts the torque of the handle and the forceps rod seat to change the stress of the movable forceps head and the fixed forceps head on the suture needle, thereby the suture needle of different models can all play the holding effect, but the transmission assembly of the forceps rod of the needle holder is connected in the fixed mode of fixed spring and sliding groove and handle, the spring is prone to aging after long-term use, and the structure is difficult to match the related accessories produced by different companies. SUMMARY

[0004] The utility model aims at the above -mentioned problem, provides a pair of forceps rod dismounting structure applied to needle holder.

[0005] The utility model discloses a forceps rod and the drive piece that can drive forceps rod reciprocating movement along the linear direction, still be equipped with detachable transmission assembly between forceps rod and drive piece, one end is connected in drive piece, the other end is connected in forceps rod, and drive piece is in the process of pushing detachable transmission assembly, the connection relation of detachable transmission assembly and forceps rod is switched between mutual connection and mutual separation or the connection relation of detachable transmission assembly and drive piece is switched between mutual connection and mutual separation.

[0006] Preferably, the detachable transmission assembly is linearly movable, the distance between the ends of the detachable transmission assembly near the clamping rods is increased or decreased, and the outer diameter of the end of the clamping rod near the detachable transmission assembly is smaller than the maximum distance of the detachable transmission assembly. Specifically, the detachable transmission assembly limits the movement of the end of the clamping rod and can be separated at a certain position to facilitate disassembly. Of course, such displacement for disassembly does not occur in the normal use state after assembly.

[0007] Preferably, the detachable transmission assembly includes an even number of symmetrically distributed clamping rod limiting blocks that collectively limit the end of the clamping rod near the detachable transmission assembly.

[0008] Preferably, the clamping rod limiting block is provided with a recess, and the recesses collectively form a limiting cavity to limit the end of the clamping rod near the detachable transmission assembly.

[0009] Preferably, the end of the clamping rod limiting block away from the clamping rod is connected with the driving member in a snap-fit manner.

[0010] Preferably, the end of the clamping rod limiting block away from the clamping rod is connected with the driving member in a snap-fit manner.

[0011] Preferably, the detachable transmission assembly further comprises a fixed sleeve body, and the inner wall of the fixed sleeve body is provided with a clamping rod limiting block near the center of the end of the clamping rod near the detachable transmission assembly, so that the clamping rod limiting block limits the end of the clamping rod.

[0012] Preferably, the fixed sleeve body is provided with a sliding groove, and the clamping rod limiting block is provided with a protrusion, and the protrusion is in sliding connection with the sliding groove.

[0013] Preferably, the fixed sleeve body further comprises a dismounting portion, the inner diameter of the dismounting portion gradually increases in the direction away from the driving member, and the sliding groove extends in the dismounting portion, that is, the clamping rod limiting block can be pushed to the sliding groove section of the dismounting portion to realize the separation of the end of the clamping rod.

[0014] Compared with the prior art, the detachable transmission assembly has the following advantages:

[0015] The detachable transmission assembly is used for the connection between the driving structure driven by the clamping rod and the clamping handle, and the cooperation of the fixed sleeve body and the clamping rod limiting block realizes the quick disassembly of the detachable transmission assembly through simple displacement change, the parts are simple and stable, and the disassembly efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the utility model;

[0017] Figure 2 is a schematic diagram of part of the utility model structure.

[0018] Figure 3 For Figure 2 exploded view;

[0019] Figure 4 For Figure 2 exploded view;

[0020] Figure 5 For the utility model application in the schematic diagram of needle holder forceps is shown in the figure;

[0021] Figure 6 For Figure 5 sectional view;

[0022] In the figure: clamp rod 1, driving part 2, detachable transmission assembly 3, clamp rod limiting block 31, recess 311, protrusion 312, limiting cavity 3111, fixed sleeve body 32, sliding groove 321, dismounting part 322. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0024] The utility model is a kind of clamp rod dismounting structure applied to needle holder, as shown in Figure 1 Figure, including clamp rod 1 and the driving part 2 that can drive clamp rod 1 reciprocating movement along straight line, still be equipped with detachable transmission assembly 3 between clamp rod 1 and driving part 2, one end of detachable transmission assembly 3 is connected on driving part 2, the other end is connected on clamp rod 1, and the connection relationship of detachable transmission assembly 3 and clamp rod 1 is switched between mutual connection and mutual separation or the connection relationship of detachable transmission assembly 3 and driving part 2 is switched between mutual connection and mutual separation in the process of driving detachable transmission assembly 3.

[0025] Specifically, when detachable transmission assembly 3 moves along straight line, the opening distance of one end of detachable transmission assembly 3 close to clamp rod 1 becomes larger or smaller, and the outer diameter of one end of clamp rod 1 close to detachable transmission assembly 3 is less than the maximum opening distance of detachable transmission assembly 3.

[0026] When using, in normal working range, detachable transmission assembly 3 drives clamp rod 1 to move without separation, after exceeding the range of activity, detachable transmission assembly 3 and clamp rod 1 can be separated or the connection relationship of detachable transmission assembly 3 and driving part 2 can be separated to complete dismounting.It is easy to think that a certain resistance is certainly set outside the working range of movable detachable transmission assembly 3.

[0027] Preferably, the detachable transmission assembly 3 comprises an even number of symmetrically distributed clamp rod limiting blocks 31, which jointly limit the clamp rod 1 near one end of the detachable transmission assembly 3 to drive the clamp rod 1 to move.

[0028] Further, as shown in Figure 4 , the clamp rod limiting block 31 is provided with a recess 311, and the recess 311 jointly forms a limiting cavity 3111 to limit the clamp rod 1 near one end of the detachable transmission assembly 3.

[0029] Preferably, the connection mode of the driving member 2 and the detachable transmission assembly 3 has many kinds, which is not limited to the buckle connection of the clamp rod limiting block 31 far away from one end of the clamp rod 1 and the driving member 2, for example, the clamp rod limiting block 31 is provided with a hole at the rear end, and the driving member 2 is provided with a buckle to be buckled; or the clamp rod limiting block 31 far away from one end of the clamp rod 1 is connected with the driving member 2 through the plug-in mode.

[0030] Preferably, the sliding and detaching scheme of the detachable transmission assembly 3 can be that the fixed sleeve body 32 is arranged, the inner wall of the fixed sleeve body 32 is arranged to press the clamp rod limiting block 31 near the center of one end of the detachable transmission assembly 3, and the clamp rod limiting block 31 is kept in the aggregated state within the normal activity range.

[0031] Further, as shown in Figure 2 , 3 , the fixed sleeve body 32 is provided with a sliding groove 321, the clamp rod limiting block 31 is provided with a protrusion 312, and the protrusion 312 is in sliding connection with the sliding groove 321.

[0032] Further, the fixed sleeve body 32 further comprises a detaching part 322, the inner diameter of the detaching part 322 gradually increases in the direction away from the driving member 2, and the sliding groove 321 extends in the detaching part 322.

[0033] The working principle of the utility model is as follows: Figures 1-5 As shown in the figure, in the normal assembly state, the driving member 2 is driven by operating the movable handle, the clamp rod limiting block 31 connected with the driving member 2 jointly clamps the clamp rod 1 to make linear reciprocating motion, the protrusion 312 only slides along the linear section of the sliding groove 321 under normal stress, and the linear motion of the clamp rod 1 realizes the adjustment of the opening angle of the clamp head. When disassembling, after the shell is disassembled, the handle is used to force the clamp rod limiting block 31 to move to the sliding groove section on the detaching part 322, the clamp rod limiting block 31 realizes the movement away from the end of the clamp rod 1, thereby completing the disassembly of the clamp rod 1 relative to the detachable transmission assembly 3, and the disassembly is convenient. Other parts are disassembled in turn.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0035] Although the terms such as clamp rod 1, driving member 2, detachable transmission assembly 3, clamp rod limiting block 31, recess 311, protrusion 312, limiting cavity 3111, fixed sleeve body 32, sliding groove 321, and dismounting part 322 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A needle holder dismounting structure applied to a needle holder, comprising a holder rod (1) and a driving member (2) capable of driving the holder rod (1) to move reciprocally along a straight line direction, characterized in that: The detachable transmission assembly (3) is connected to the driving member (2) at one end and connected to the clamp bar (1) at the other end, and the connection relationship between the detachable transmission assembly (3) and the clamp bar (1) is switched between mutual connection and mutual separation or the connection relationship between the detachable transmission assembly (3) and the driving member (2) is switched between mutual connection and mutual separation during the process of pushing the detachable transmission assembly (3).

2. The handle dismounting structure for needle holder according to claim 1, wherein: When the detachable transmission assembly (3) moves linearly, the opening distance of the end of the detachable transmission assembly (3) close to the clamp bar (1) becomes larger or smaller, and the outer diameter of the end of the clamp bar (1) close to the detachable transmission assembly (3) is smaller than the maximum opening distance of the detachable transmission assembly (3).

3. The handle dismounting structure for needle holder according to claim 1, wherein: The detachable transmission assembly (3) comprises an even number of symmetrically distributed clamp bar limiting blocks (31), which jointly limit the end of the clamp bar (1) close to the detachable transmission assembly (3).

4. The handle dismounting structure for needle holder according to claim 1, wherein: The clamp bar limiting block (31) is provided with a recess (311), and the recess (311) jointly forms a limiting cavity (3111) to limit the end of the clamp bar (1) close to the detachable transmission assembly (3).

5. The handle dismounting structure for needle holder according to claim 3, wherein: The end of the clamp bar limiting block (31) away from the clamp bar (1) is snap-fit connected with the driving member (2).

6. The handle dismounting structure for needle holder according to claim 3, wherein: The end of the clamp bar limiting block (31) away from the clamp bar (1) is snap-fit connected with the driving member (2).

7. The handle dismounting structure for needle holder according to claim 1, wherein: The detachable transmission assembly (3) further comprises a fixed sleeve body (32), and the inner wall of the fixed sleeve body (32) is arranged to press the clamp bar limiting block (31) towards the center of the end of the clamp bar (1) close to the detachable transmission assembly (3).

8. The handle dismounting structure for needle holder according to claim 7, wherein: The fixed sleeve body (32) is provided with a sliding groove (321), and the clamp bar limiting block (31) is provided with a protrusion (312), and the protrusion (312) is slidingly connected with the sliding groove (321).

9. The handle dismounting structure for needle holder according to claim 8, wherein: The fixed sleeve body (32) further comprises a dismounting portion (322), the inner diameter of the dismounting portion (322) gradually increases in the direction away from the driving member (2), and the sliding groove (321) extends in the dismounting portion (322).

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