CN217525218U - Operating handle of surgical instrument - Google Patents

Abstract

The utility model discloses a surgical instrument operating handle, which comprises a handle main body, a slide block, a driving ring and an instrument core part. A sliding groove extending along the axis direction is arranged in the handle main body. The sliding block is connected to the sliding groove in a sliding mode and is limited by the sliding groove in the circumferential direction. The driving ring is rotatably connected to the handle body, at least part of the structure of the driving ring is exposed out of the handle body, and the driving ring is in threaded connection with the sliding block, so that when the driving ring rotates relative to the handle body, the sliding block is driven to linearly slide along the axis direction through threaded matching. One end of the instrument core is fixedly connected to the sliding block, and the other end of the instrument core extends out of the handle main body along the axis direction. When the driving ring is driven to rotate, the slide block and the driving ring can be matched through threads, so that the slide block and the instrument core part can move linearly, the extension length of the instrument core part can be adjusted, different work application scenes can be adapted, the applicability is good, the operation cost can be reduced, and the operation is convenient.

Description

Operating handle of surgical instrument

Technical Field

The utility model relates to the technical field of medical equipment, in particular to surgical instrument operating handle.

Background

At present, the operation demand under the endoscope is more and more, and surgical instruments are mostly disposable, and the apparatus that mainly uses has high frequency mucous membrane incision sword, but, among the incision sword, the length that the core that is used for the operation stretches out in incision sword's handle is definite, can not satisfy the demand in the operation scene of difference.

Therefore, how to improve the applicability of the surgical instrument is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a surgical instrument operating handle, which can conveniently adjust the extending length of the instrument core, so as to improve the applicability of the surgical instrument.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a surgical instrument operating handle includes a handle main body, a slider, a drive ring, and an instrument core;

a chute extending along the axis direction is arranged in the handle main body;

the sliding block is connected to the sliding groove in a sliding mode and is limited by the sliding groove in the circumferential direction;

the driving ring is rotatably connected to the handle body, at least part of the structure of the driving ring is exposed out of the handle body, and the driving ring is in threaded connection with the sliding block, so that when the driving ring rotates relative to the handle body, the sliding block is driven to linearly slide along the axis direction through threaded matching;

one end of the instrument core is fixedly connected to the sliding block, and the other end of the instrument core extends out of the handle main body along the axis direction.

Preferably, one of the handle main body and the driving ring is provided with a positioning groove group, the other one is provided with an elastic positioning claw, the positioning groove group comprises at least two positioning grooves which are sequentially arranged along the axis direction, and the positioning grooves are arc-shaped grooves or circular-ring grooves which take the rotation center line of the driving ring as the center line; the driving ring moves relative to the handle body along the axis direction to switch the positioning groove clamped by the positioning clamping claws.

Preferably, the drive ring includes a drive portion and a snap portion connected to the drive portion; the driving part is of an annular structure and is in threaded connection with the sliding block; the clamping portion comprises at least two clamping plates which are sequentially arranged along the circumferential direction of the driving portion, one of the handle main body and the clamping plate is provided with the positioning groove group, and the other is provided with the positioning clamping jaw.

Preferably, the driving ring is sleeved outside the handle main body.

Preferably, the groove wall of the sliding groove comprises a guide plane parallel to the axis direction, and the sliding block is provided with a sliding block plane fitted and matched with the guide plane.

Preferably, the sliding groove comprises a connecting groove, and the connecting groove is provided with a connecting notch; the slide block is connected with the thread of the driving ring through the surface exposed out of the connecting notch.

Preferably, the sliding groove includes two of the connecting notches, and the two connecting notches are oppositely arranged in a direction perpendicular to the axial direction.

Preferably, the spout still includes the holding tank, place in the holding tank the handle main part, the holding tank with the spread groove is followed the butt joint of axis direction.

Preferably, one of the handle main body and the driving ring is provided with a positioning groove group, the other one is provided with an elastic positioning claw, the positioning groove group comprises at least two positioning grooves which are sequentially arranged along the axis direction, and the positioning grooves are arc-shaped grooves or circular-ring grooves which take the rotation center line of the driving ring as the center line; the driving ring moves relative to the handle main body along the axial direction so as to switch the positioning groove clamped by the positioning clamping claws;

the length of the connecting notch in the axial direction is equal to the length of the positioning groove group in the axial direction.

Preferably, the handle end cap compresses the sheath tube to the handle main body, and the other end of the instrument core extends out of the handle main body and then extends into the sheath tube.

The utility model provides a surgical instrument operating handle, including handle main part, slider, drive ring and apparatus core. The handle main body is internally provided with a chute extending along the axis direction. The sliding block is connected with the sliding groove in a sliding mode and is limited by the sliding groove in the circumferential direction. The driving ring is rotatably connected to the handle body, at least part of the structure of the driving ring is exposed out of the handle body, and the driving ring is in threaded connection with the sliding block, so that when the driving ring rotates relative to the handle body, the sliding block is driven to linearly slide along the axis direction through threaded matching. One end of the instrument core is fixedly connected to the sliding block, and the other end of the instrument core extends out of the handle main body along the axis direction.

The slider can slide in the spout of handle main part but by circumference spacing, so when rotating the drive ring, can utilize the screw-thread fit between slider and the drive ring for slider and apparatus core linear movement realize the regulation to the extension length of apparatus core, use the scene with the work of adaptation difference, the suitability is better, can adjust into different specification models with same apparatus, instrument change time in the reduction operation, reduce the operation cost, convenient operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of an operating handle of a surgical instrument provided by the present invention;

FIG. 2 is a partial cross-sectional view of the surgical device handle of FIG. 1;

FIG. 3 is a view of the surgical instrument operating handle of FIG. 1 shown with the drive ring hidden;

FIG. 4 is a partial cross-sectional view of the surgical instrument operating handle shown in FIG. 1 with the positioning pawl engaged with the left end positioning slot;

FIG. 5 is a partial cross-sectional view of the surgical instrument operating handle shown in FIG. 1 with the positioning pawl engaged with the right positioning slot;

FIG. 6 is a partial cross-sectional view of the surgical instrument operating handle shown in FIG. 1 with the positioning claws engaged with the middle positioning grooves and the drive ring driving the slide block to move to the first position;

fig. 7 is a partial cross-sectional view of the surgical instrument operating handle shown in fig. 1 when the driving ring drives the slide block to move to the second position under the condition that the positioning claws are clamped with the middle positioning grooves.

Reference numerals are as follows:

an instrument core 1;

the handle body 2, the sliding groove 22, the guide plane 221, the connecting groove 222, the connecting notch 223, the accommodating groove 224, the positioning groove 23, and the core sliding hole 24;

slider 3, slider thread 31;

a drive ring 4, a drive portion 41, a drive screw 411, a click plate 42, a positioning pawl 421;

a handle end cap 5;

a sheath 6;

and an axial direction Z.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a surgical instrument operating handle, which can conveniently adjust the extending length of the instrument core part, and further improve the applicability of the surgical instrument.

Referring to fig. 1 to 3, the handle for operating surgical instruments provided by the present invention includes a handle main body 2, a slider 3, a driving ring 4, and an instrument core 1.

The sliding block 3 is slidably connected to the handle main body 2, as shown in fig. 3, a sliding groove 22 is provided on the handle main body 2, the sliding groove 22 extends along the axis direction Z, the sliding block 3 is slidably connected in the sliding groove 22 and is circumferentially limited by the sliding groove 22, so that the sliding block 3 is limited by the sliding groove 22 to be slidable only along the axis direction Z, and the sliding block 3 can move along the axis direction Z but cannot rotate in the handle main body 2.

The driving ring 4 is rotatably connected to the handle body 2, and at least part of the structure of the driving ring 4 is exposed out of the handle body 2. The drive ring 4 is screwed to the slider 3 so that the slider 3 is linearly slid in the axial direction Z by screwing when the drive ring 4 is rotated relative to the handle main body 2. As shown in fig. 4, the slider 3 is provided with a slider thread 31, the drive ring 4 is provided with a drive thread 411, and the slider thread 31 and the drive thread 411 are in meshing fit connection.

One end of the instrument core 1 is fixedly connected to the slider 3, and the instrument core 1 is slidably connected to the handle main body 2, and the other end of the instrument core 1 protrudes out of the handle main body 2 in the axial direction Z. The portion of the surgical instrument that needs to be adjusted in length to protrude from the handle body 2 may be attached or provided to the instrument core 1.

As shown in fig. 6 and 7, when the driving ring 4 is rotated relative to the handle body 2, the slider 3 and the instrument core 1 can move linearly by means of the screw-thread fit between the slider 3 and the driving ring 4, so as to adjust the extension length of the instrument core 1 to adapt to different working application scenarios.

Further, as shown in fig. 3 to 5, the handle main body 2 is provided with a positioning groove group, and the drive ring 4 is provided with a positioning pawl 421. The positioning groove group includes at least two positioning grooves 23 arranged in order along the axis direction Z. The positioning groove 23 is an arc groove or a circular groove taking the rotation center line of the drive ring 4 as a circular center line, wherein the arc groove refers to a groove with a central angle smaller than 360 degrees, and the central angle of the circular groove is 360 degrees, specifically, when the rotatable angle range of the drive ring 4 is smaller than 360 degrees, the positioning groove 23 may be an arc groove with a central angle larger than the above angle range; when the rotatable angular range of the drive ring 4 is not less than 360 degrees, the positioning groove 23 is a circular groove.

The drive ring 4 is moved relative to the handle main body 2 by moving in the axial direction Z to switch the positioning grooves 23 into which the positioning claws 421 are engaged. The positioning latch 421 has elasticity to reduce the damage to the positioning latch 421 during the switching process.

In this embodiment, the protruding length of the instrument core 1 can be quickly adjusted by directly driving the ring 4 to move in the axis direction Z to switch the positioning grooves 23 engaged by the positioning claws 421. Thus, in this embodiment, a quick coarse adjustment of the extended length of instrument core 1 can be achieved by moving drive ring 4, and a fine adjustment of the extended length of instrument core 1 can be achieved by rotating drive ring 4.

In addition, the switchable arrangement of the positioning claws 421 can also control the limit positions of the slide blocks 3 driven by the drive ring 4, thereby further improving the applicability of the surgical instrument. Specifically, referring to fig. 4 and 5, the axial direction Z is the axial direction of the handle, and the left-right direction is taken as an example and described with reference to the drawings. In fig. 4, the positioning claws 421 are clamped in the positioning grooves 23 at the leftmost end, the slide block 3 is at the left limit position, and the drive ring 4 rotates to drive the slide block 3 to move rightward from the current position, wherein, because the positioning grooves 23 are arc-shaped grooves or circular grooves, when the drive ring 4 rotates, the positioning claws 421 rotate in the positioning grooves 23 without interfering with the rotation of the drive ring 4; the driving ring 4 is pushed rightwards, the positioning groove 23 clamped by the positioning claws 421 can be switched, in fig. 5, the positioning claws 421 are clamped in the positioning groove 23 at the rightmost end, the slide block 3 is at the left limit position, and the driving ring 4 rotates to drive the slide block 3 to move rightwards from the current position.

Of course, in other embodiments, it is also possible to provide the positioning groove group on the drive ring 4 and the positioning claws on the handle main body 2.

Further, as shown in fig. 1 and 2, the drive ring 4 includes a drive portion 41 and a click portion connected to the drive portion 41, which are sequentially disposed in the axial direction Z. The driving part 41 is of an annular structure and is in threaded connection with the sliding block 3, specifically, the driving screw 411 is provided on the driving part 41. The engaging portion includes at least two engaging plates 42 sequentially arranged along the circumferential direction of the driving portion 41, specifically, as shown in fig. 1, a gap is provided between adjacent engaging plates 42, and the positioning claw 421 is arranged on the engaging plate 42. Since the engagement portion is formed by different engagement plates 42, it is more convenient to deform when the positioning claw 421 is switched, and the shape of the driving portion 41 is not affected.

Wherein, optionally, a step is formed between the clamping part and the outer surface of the driving part 41 and/or a flange is formed on one side of the driving part 41 abutting against the handle body 2 opposite to the outer peripheral surface of the handle body 2, so as to push the driving ring 4 conveniently and improve the convenience of switching operation.

Further, as shown in fig. 1, the driving ring 4 is sleeved outside the handle main body 2, so that the assembly is facilitated, and the position of the driving ring 4 is manually operated. Specifically, a drive screw 411 and positioning claws 421 are provided on the inner peripheral surface of the drive ring 4. In addition, the driving ring 4 is externally provided with a friction texture for manual rotation. Of course, in other embodiments, the drive ring 4 may be partially built into the handle body 2.

Further, the groove wall of the sliding groove 22 includes a guide plane 221 parallel to the axis direction Z, and the slider 3 is provided with a slider plane fitting with the guide plane 221. As shown in fig. 3, the slot wall of the sliding slot 22 includes two parallel guiding planes 221, and the sliding block 3 is sandwiched between the two guiding planes 221. Through the plane cooperation between the slider 3 and the sliding groove 22, the slider 3 can be prevented from rotating relative to the handle main body 2 without arranging other rotation limiting structures.

Further, as shown in fig. 3 and 5, the sliding slot 22 includes a connecting slot 222, and the connecting slot 222 is opened with a connecting notch 223. The slider 3 is screw-coupled with the driving ring 4 through a surface exposed to the coupling notch 223. Since the coupling notch 223 is exposed to the handle body 2, the screw coupling of the slider 3 and the driving ring 4 is performed there, facilitating the assembly. Alternatively, the connecting slot 222 may be opened with one or at least two connecting notches 223.

Further, the length of the connecting notch 223 in the axis direction Z is equal to the length of the positioning groove group in the axis direction Z, so that the length of the connecting notch 223 is reduced while ensuring that the positioning claws 421 can be switched to the respective positioning grooves 222, which is advantageous for making the handle compact.

Further, as shown in fig. 3 and 5, two connecting notches 223 are oppositely arranged in a direction perpendicular to the axial direction Z, specifically, the connecting groove 222 is penetratingly arranged in a direction perpendicular to the axial direction Z during machining, accordingly, the connecting groove 222 forms two opposite connecting notches 223, the driving ring 4 can be respectively screwed with the sliders 3 at the two connecting notches 223, and the reliability of connection between the sliders 3 and the driving ring 4 can be improved. Of course, in other embodiments, the connecting slot 222 may have only one connecting notch 223.

Further, as shown in fig. 6, the slide groove 22 further includes a receiving groove 224, the receiving groove 224 is disposed in the handle main body 2, the receiving groove 224 is abutted with the connecting groove 222 along the axial direction Z, and accordingly, the slider 3 is linearly moved back and forth between the receiving groove 224 and the connecting groove 222. The partial structure of the slider 3 is accommodated through the accommodating groove 224, so that the exposed area of the slider 3 can be reduced, and the service life of the slider 3 can be prolonged.

Further, as shown in fig. 4, the surgical instrument operating handle further includes a handle end cap 5 and a sheath 6. The handle end cap 5 compresses tightly the sheath tube 6 in the handle main body 2, and the instrument core 1 extends out of the handle main body 2 and then extends into the sheath tube 6, so that the connection is reliable. Preferably, the end part of the handle main body 2 in the axial direction Z is a conical structure, the sheath tube 6 is connected to the outer side of the conical structure, the sheath tube 6 is stably clamped by matching a conical surface with the handle end cap 5, in addition, a through hole is arranged in the middle of the conical structure, and the instrument core 1 extends out of the handle main body 2 through the through hole.

Further, a linear core slide hole 24 is provided in the handle body 2, and the core slide hole 24 is specifically parallel to the axial direction Z. The slider 3 and the core slide hole 24 are arranged in order in the axial direction Z. As shown in fig. 4, one end of the instrument core 1 is inserted and fixed in the sliding block 3, the rest part of the instrument core passes through the core sliding hole 24 and extends out of the handle main body 2, so that the assembly is convenient, and the sliding stability of the instrument core 1 can be improved by the sliding fit of the instrument core 1 and the core sliding hole 24.

More specifically, as shown in fig. 4, along the axial direction Z, the receiving groove 224, the connecting groove 222, and the core slide hole 24 are arranged in order along the axial direction Z. In addition, a positioning groove group is provided on the outer surface of the portion of the handle main body 2 where the core slide hole 24 is provided.

In this embodiment, the handle body 2 is a handle skeleton, provides rotational support for the drive ring 4, sliding support for the slider 3, and support perpendicular to the axis direction Z for the instrument core 1. When the linear reciprocating type surgical instrument is used, the driving ring 4 is rotated back and forth through fingers, the sliding block 3 can be driven to linearly reciprocate on the handle body 2, the sliding block 3 can drive the instrument core 1 and the instrument connected with the instrument core 1 to linearly move back and forth, and the extending/retracting action of the instrument core 1 and the instrument is completed. In addition, the attachment position of the drive ring 4 on the handle body 2 in the axial direction Z is adjustable, whereby quick adjustment and limitation of the extreme position of the slide block 3 sliding can be achieved.

It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above provides a detailed introduction of the operation handle of the surgical instrument provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The operating handle of the surgical instrument is characterized by comprising a handle main body (2), a slide block (3), a driving ring (4) and an instrument core part (1);

a sliding groove (22) extending along the axis direction (Z) is arranged in the handle main body (2);

the sliding block (3) is connected to the sliding groove (22) in a sliding mode and is limited by the sliding groove (22) in the circumferential direction;

the driving ring (4) is rotatably connected to the handle main body (2), at least part of the structure of the driving ring (4) is exposed out of the handle main body (2), and the driving ring (4) is in threaded connection with the sliding block (3), so that when the driving ring (4) rotates relative to the handle main body (2), the sliding block (3) is driven to linearly slide along the axis direction (Z) through threaded matching;

one end of the instrument core part (1) is fixedly connected to the sliding block (3), and the other end of the instrument core part (1) extends out of the handle main body (2) along the axis direction (Z).

2. The surgical instrument operating handle according to claim 1, wherein one of the handle main body (2) and the drive ring (4) is provided with a positioning groove group, and the other is provided with an elastic positioning claw (421), the positioning groove group comprises at least two positioning grooves (23) arranged in sequence along the axial direction (Z), the positioning grooves (23) are circular arc grooves or circular ring grooves taking the rotation center line of the drive ring (4) as the center line; the driving ring (4) moves relative to the handle main body (2) along the axis direction (Z) to switch the positioning groove (23) clamped by the positioning claw (421).

3. The surgical instrument operating handle according to claim 2, wherein the drive ring (4) includes a drive portion (41) and a click portion connected to the drive portion (41); the driving part (41) is of an annular structure and is in threaded connection with the sliding block (3); the clamping portion comprises at least two clamping plates (42) which are sequentially arranged along the circumferential direction of the driving portion (41), one of the handle main body (2) and the clamping plate (42) is provided with the positioning groove group, and the other is provided with the positioning claw (421).

4. The surgical instrument operating handle according to claim 1, characterized in that the drive ring (4) is sleeved outside the handle main body (2).

5. The surgical instrument operating handle according to claim 1, wherein a groove wall of the sliding groove (22) comprises a guide plane (221) parallel to the axial direction (Z), and a slider plane is provided on the slider (3) to fit the guide plane (221).

6. The surgical instrument operating handle according to claim 1, wherein the sliding slot (22) comprises a connecting slot (222), the connecting slot (222) being opened with a connecting notch (223); the sliding block (3) is connected with the driving ring (4) through the surface exposed out of the connecting notch (223).

7. The surgical instrument operating handle according to claim 6, wherein the slide groove (22) includes two of the connecting notches (223), the two connecting notches (223) being disposed opposite to each other in a direction perpendicular to the axis direction (Z).

8. The surgical instrument operating handle according to claim 6, wherein the sliding groove (22) further comprises a receiving groove (224), the receiving groove (224) is built in the handle main body (2), and the receiving groove (224) is butted against the connecting groove (222) along the axis direction (Z).

9. The surgical instrument operating handle according to claim 6, wherein one of the handle main body (2) and the drive ring (4) is provided with a positioning groove group, and the other is provided with an elastic positioning claw (421), the positioning groove group comprises at least two positioning grooves (23) arranged in sequence along the axial direction (Z), and the positioning grooves (23) are circular arc grooves or circular ring grooves taking the rotation center line of the drive ring (4) as the center line; the driving ring (4) moves relative to the handle body along the axial direction (Z) to switch the positioning groove (23) clamped by the positioning claw (421);

the length of the connecting notch (223) in the axis direction (Z) is equal to the length of the positioning groove group in the axis direction (Z).

10. The handle according to any one of claims 1 to 9, further comprising a handle end cap (5) and a sheath (6), wherein the handle end cap (5) presses the sheath (6) against the handle body (2), and the other end of the instrument core (1) protrudes through the handle body (2) and then into the sheath (6).

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