CN221770165U

CN221770165U - Medical shaver handle

Info

Publication number: CN221770165U
Application number: CN202322915188.XU
Authority: CN
Inventors: 陈胜华; 方国成; 方潇; 洪启龙; 姚彤; 朱培根
Original assignee: TONGLU JINGRUI MEDICAL DEVICES CO Ltd
Current assignee: TONGLU JINGRUI MEDICAL DEVICES CO Ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2024-09-27
Anticipated expiration: 2033-10-30

Abstract

The utility model relates to a medical planing device handle which comprises a handle main body, a locking ring and a lock head. The distal end of the handle body is provided with a lock mounting cavity. The locking ring is in rotary movable connection with the lock head installation cavity, the locking ring comprises a ring body in rotary fit with the lock head installation cavity, a flange which is abutted to the end face of the distal end of the handle main body is arranged at the distal end of the ring body, and internal threads are arranged on the locking ring. The tapered end comprises a first part positioned in the tapered end installation cavity and a second part positioned at the far end side of the flange, wherein the first part is provided with external threads matched with the internal threads, and a circumferential locking mechanism is arranged between the proximal end part of the first part and the cavity bottom of the tapered end installation cavity. The structure can ensure that the lock head and the handle main body are relatively fixed after assembly and have fixed relative directions.

Description

Medical planing device handle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a medical planing device handle.

Background

Medical shavers are medical devices used to cut, remove, trim or alter bone, soft tissue or other biological material during surgery. Medical shavers require the use of different types of cutter assemblies to accommodate different surgical needs. The medical planing device handle is an important accessory of the medical planing device, the cutter component can be installed and disassembled through the handle, and meanwhile, parameters such as an operation angle, a force and the like can be adjusted according to the requirement.

The existing medical planing device handle is provided with a handle main body and a lock head which are in threaded connection, and the handle main body and the lock head are required to be kept relatively fixed after being assembled so as to be convenient for installing a cutter. With the continuous progress of medical operations, the functions of the handles of medical shavers are also increasing. For example, the handle main body and the lock head are provided with modules such as a control module and a monitoring module, at this time, the assembled lock head and the module on the handle main body are required to be ensured to be in a certain fixed direction on the outer surface of the handle of the medical planing device, and the existing threaded connection structure cannot control the relative direction after the lock head and the handle main body are fixed after screwing.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a medical planing device handle which is used for solving the problem of keeping the fixed relative direction after a lock head and a handle main body are assembled.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

a medical shaver handle comprising at least:

The handle body, the distal end of the said handle body has lock mounting cavity;

The locking ring is rotatably and movably connected with the lock head mounting cavity, the locking ring comprises a ring body which is rotatably matched with the lock head mounting cavity, the distal end of the ring body is provided with a flange which is abutted with the distal end face of the handle main body, and the locking ring is provided with internal threads;

The tapered end, the tapered end is including being located the first part in the tapered end installation cavity and being located the second part of flange distal end side, be provided with on the first part with the external screw thread of internal screw thread adaptation, be provided with circumference locking mechanism between the proximal end portion of first part and the chamber bottom in tapered end installation cavity.

In a preferred embodiment, a first clamping spring groove is formed in the lock head mounting cavity, a second clamping spring groove corresponding to the axial position of the first clamping spring groove is formed in the ring body, and clamping springs are mounted in the first clamping spring groove and the second clamping spring groove.

In a preferred embodiment, the circumferential locking mechanism includes a locking protrusion and the locking groove that are mutually adapted.

In a preferred embodiment, the locking protrusion is disposed at a proximal end of the first portion, and the locking recess is disposed at a bottom of the lock head mounting cavity.

In a preferred embodiment, the locking protrusion is disposed at the bottom of the lock head mounting cavity, and the locking groove is disposed at the proximal end of the first portion.

In a preferred embodiment, the flange is provided with at least one recess.

Compared with the prior art, the medical shaver handle of the embodiment has the following beneficial effects:

The handle main body is in rotary movable connection with the locking ring, so that the axial displacement of the locking ring relative to the handle main body is limited, the lock head is in threaded connection with the locking ring, and the lock head is driven to axially displace through threaded fit. When the tapered end is rotated to the cavity bottom close to the tapered end installation cavity, the circumferential locking mechanism arranged between the proximal end part of the tapered end and the tapered end installation cavity bottom is adjusted to reach a position capable of being matched, and the tapered end is driven to axially rotate by rotating the locking ring, so that the circumferential locking mechanism is mutually matched, and the tapered end is restrained from rotating, so that the relative fixation of the tapered end and the handle main body can be ensured, and the relative direction of the tapered end and the handle main body after the tapered end and the handle main body are fixed can be ensured.

Drawings

FIG. 1 is a schematic view in partial cross-section of a medical planer handle of the present embodiment;

FIG. 2 is an enlarged partial schematic view of the portion A shown in FIG. 1;

FIG. 3 is a schematic perspective view of a handle body of the medical shaver according to the embodiment;

fig. 4 is a schematic perspective view of a lock head of a handle of the medical shaver according to the embodiment;

Fig. 5 is a schematic perspective view of a locking ring of a handle of the medical shaver according to the embodiment.

Reference numerals illustrate: the handle comprises a handle body, a 2-lock head, a 3-locking ring, a 4-clamp spring, a 11-lock head mounting cavity, a 12-first clamp spring groove, a 13-locking groove, a 21-first part, a 22-second part, a 23-external thread, a 24-locking convex part, a 31-ring body, a 32-internal thread, a 33-flange, a 34-second clamp spring groove and a 35-groove.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the mechanisms or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In this embodiment, the end of the medical shaver handle facing the patient is defined as the distal end and the end facing the user is defined as the proximal end.

As shown in fig. 1, the medical shaver handle has a distal end at the left end and a proximal end at the right end. The medical planing device handle of the embodiment is provided with a handle main body 1, the left end of the handle main body 1 is rotatably and movably connected with a locking ring 3, and the locking ring 3 is connected with a lock head 2 in a threaded manner.

As shown in fig. 3, the left end of the handle body 1 is provided with a lock head installation cavity 11, and the cavity bottom of the lock head installation cavity 11 is provided with two locking grooves 13. A first clamp spring groove 12 is arranged in the lock head installation cavity 11.

As shown in fig. 4, the locking head 2 includes a first portion 21 and a second portion 22. The first part 21 is provided with an external thread 23, the right end part of the first part 21 is provided with two locking convex parts 24, and the locking convex parts 24 and the locking grooves 13 are mutually matched to form a circumferential locking mechanism. The locking protrusion 24 may be disposed at the bottom of the lock cylinder mounting cavity 11, and the locking groove 13 may be disposed at the right end of the first portion 21, which achieves the same technical effect as the embodiment equivalent to the present embodiment.

As shown in fig. 5, the locking ring 3 includes a ring body 31 rotatably engaged with the lock head mounting cavity 11, a second snap spring groove 34 corresponding to the axial position of the first snap spring groove 12 is provided on the outer surface of the ring body 31, and an internal thread 32 adapted to the external thread 23 is provided on the inner surface of the locking ring 3. The left end of the ring body 3 is provided with an annular flange 33, three grooves 35 are formed in the flange 33, and the grooves 35 are used for being matched with a tool to facilitate rotation of the locking ring 3.

As shown in fig. 2, during assembly, the clamp spring 4 is pressed into the second clamp spring groove 34 of the locking ring 3, and then the locking ring 3 is pushed into the lock head mounting cavity 11 from the left end of the handle body 1 until the second clamp spring groove 34 is aligned with the first clamp spring groove 12, and the clamp spring 4 elastically expands and is positioned between the second clamp spring groove 34 and the first clamp spring groove 12, so that the axial displacement of the locking ring 3 relative to the handle body 1 is limited, but the locking ring 3 can rotate and move relative to the handle body 1. Then the first part 21 of the lock head 2 is inserted into the locking ring 3, the internal thread 32 is matched with the external thread 23, the lock head 2 is rotated while the locking ring 3 is fixed, and the lock head 2 is driven to axially displace towards the cavity bottom of the lock head mounting cavity 11 by virtue of the function of the thread. When the locking convex part 24 approaches the locking groove 13, the locking convex part 24 needs to be adjusted to reach a position which can be matched with the locking groove 13, the locking ring 3 is rotated to drive the lock head 2 to axially rotate, and the locking convex part 24 is clamped into the locking groove 13, so that the assembly is completed. Thus, the lock head 2 and the handle body 1 can be mutually fixed after being assembled, and the relative direction of the lock head 2 and the handle body can be ensured after being fixed.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

Claims

1. A medical shaver handle, characterized in that it at least comprises:

A handle body (1), wherein a lock head installation cavity (11) is provided at the distal end of the handle body (1);

a locking ring (3), the locking ring (3) being rotatably connected to the lock head mounting cavity (11), the locking ring (3) comprising a ring body (31) rotatably matched with the lock head mounting cavity (11), the distal end of the ring body (31) being provided with a flange (33) abutting against the distal end surface of the handle body (1), and the locking ring (3) being provided with an internal thread (32);

A lock head (2), the lock head (2) comprising a first portion (21) located in a lock head installation cavity (11) and a second portion (22) located on the distal side of the flange (33), the first portion (21) being provided with an external thread (23) adapted to the internal thread (32), and a circumferential locking mechanism being provided between the proximal end of the first portion (21) and the bottom of the lock head installation cavity (11).

2. The medical shaver handle according to claim 1 is characterized in that: a first retaining spring groove (12) is provided in the lock head mounting cavity (11), a second retaining spring groove (34) corresponding to the axial position of the first retaining spring groove (12) is provided on the ring body (31), and retaining springs (4) are installed in the first retaining spring groove (12) and the second retaining spring groove (34).

3. The medical shaver handle according to claim 1 or 2, characterized in that the circumferential locking mechanism comprises a locking protrusion (24) and a locking groove (13) that fit each other.

4. The medical shaver handle according to claim 3, characterized in that the locking protrusion (24) is arranged at the proximal end of the first part (21), and the locking groove (13) is arranged at the bottom of the lock head installation cavity (11).

5. The medical shaver handle according to claim 3, characterized in that the locking protrusion (24) is arranged at the bottom of the lock head installation cavity (11), and the locking groove (13) is arranged at the proximal end of the first part (21).

6. The medical shaver handle according to any one of claims 1, 2, 4 or 5, characterized in that at least one groove (35) is provided on the flange (33).

7. The medical shaver handle according to claim 3, characterized in that at least one groove (35) is provided on the flange (33).