CN212326507U

CN212326507U - Bone drill is got in operation

Info

Publication number: CN212326507U
Application number: CN202021158020.9U
Authority: CN
Inventors: 徐春华; 吴得宏; 戴广平
Original assignee: Suzhou Jinxie Medical Equipment Factory
Current assignee: Suzhou Jinxie Medical Equipment Factory
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-01-12
Anticipated expiration: 2030-06-19

Abstract

The utility model provides a surgical bone taking drill, which belongs to the technical field of medical instruments and aims to solve the problems that the traditional open type bone taking operation mode is single and the damage to patients is large; comprises a handle, a connector, a locking screw, a movable tooth, a drill rod and an adjusting sealing cap; the locking screw is fixedly arranged on the handle; the connector is fixedly arranged at one end of the locking screw; one end of the drill rod is integrally provided with a ratchet wheel, and the other end of the drill rod is provided with sawteeth; the drill rod is movably arranged on the connecting head, and the ratchet wheel is positioned inside the connecting head; the movable teeth are hinged in the connector, and ratchets matched with the ratchet wheel are integrally arranged on the movable teeth; the utility model discloses a design, easy operation, the security is high, has stronger stability, is fit for clinical demand, realizes that the incision of performing the operation is little, also reaches the purpose of performing the operation convenient and fast simultaneously.

Description

Bone drill is got in operation

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a bone drill for surgery.

Background

The traditional open type bone taking method is single in mode, troublesome in operation and long in operation time, and causes complications easily and increases pain of patients due to overlarge damage to the bodies of the patients.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing a bone drill is got in operation, easy operation, the security is high, has stronger stability, is fit for clinical demand, realizes that the incision of performing the operation is little, also reaches the purpose of operation convenient and fast simultaneously.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an operation bone taking drill is characterized by comprising a handle, a connector, a locking screw, movable teeth, a drill rod and an adjusting sealing cap; the locking screw is fixedly arranged on the handle; the connector is fixedly arranged at one end of the locking screw; one end of the drill rod is integrally provided with a ratchet wheel, and the other end of the drill rod is provided with sawteeth; the drill rod is movably arranged on the connecting head, and the ratchet wheel is positioned inside the connecting head; the movable teeth are hinged in the connector, and ratchets matched with the ratchet wheel are integrally arranged on the movable teeth.

Preferably, the locking screw is in threaded connection with the handle; and the other end of the locking screw is provided with a hexagonal groove.

Preferably, one end of the connector is integrally provided with a connecting block matched with the hexagonal groove.

Preferably, the connector comprises a rod body and a connecting cylinder which are integrally formed; the drill rod is arranged in the connecting cylinder in a rotating mode through the bearing.

Preferably, a spring is fixedly arranged in the connecting cylinder, and one end of the spring is fixedly arranged on the movable tooth.

Preferably, an adjusting sealing cap is connected to the inner part of one end of the connecting cylinder in a threaded manner; the drill rod is fixedly provided with a clamping block, a limiting groove matched with the clamping block is formed in the connecting cylinder, and the clamping block is located between the adjusting sealing cap and the ratchet wheel.

Preferably, one end of the drill rod, which is close to the saw teeth, is provided with a long hole groove.

Preferably, the handle, the connector, the locking screw and the drill rod are respectively provided with a communicated round hole.

The beneficial effects of the utility model reside in that:

the utility model discloses a design, easy operation, the security is high, has stronger stability, is fit for clinical demand, realizes that the incision of performing the operation is little, also reaches the purpose of performing the operation convenient and fast simultaneously.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a surgical bone drill according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a surgical bone drill according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is a schematic sectional view taken along the direction a-a in fig. 1.

Description of reference numerals:

the special tool comprises sawteeth 1, an adjusting sealing cap 2, a connector 3, a handle 4, a drill rod 5, a long hole groove 6, a locking screw 7, a rod body 8, a ratchet wheel 9, a bearing 10, movable teeth 11, a spring 12, a connecting cylinder 13, a positioning pin 14 and ratchets 15.

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.

It should be noted that in the description of the present invention, the terms "in", "up", "down", "horizontal", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, the surgical bone drill comprises a handle 4, a connector 3, a locking screw 7, a movable tooth 11, a drill rod 5 and an adjusting sealing cap; the locking screw 7 is fixedly arranged on the handle 4; the connector 3 is fixedly arranged at one end of the locking screw 7; one end of the drill rod 5 is integrally provided with a ratchet wheel 9, and the other end is provided with sawteeth 1; the drill rod 5 is movably arranged on the connector 3, and the ratchet wheel 9 is positioned inside the connector 3; the movable tooth 11 is hinged in the connector 3, and the movable tooth 11 is integrally provided with a ratchet 15 matched with the ratchet wheel 9.

Further, a locking screw 7 is in threaded connection with the handle 4; the other end of the locking screw 7 is provided with a hexagonal groove.

Further, one end of the connector 3 is integrally provided with a connecting block matched with the hexagonal groove.

Further, the connector 3 comprises a rod body 8 and a connecting cylinder 13 which are integrally formed; the connecting cylinder 13 is internally and fixedly provided with a bearing 10, and the drill rod 5 is rotatably arranged in the connecting cylinder 13 through the bearing 10.

Further, a spring 12 is fixedly arranged in the connecting cylinder 13, one end of the spring 12 is fixedly arranged on the movable tooth 11, and the spring 12 can press the movable tooth 11 against the ratchet wheel 9 in a natural state, so that the ratchet 15 of the movable tooth 11 is clamped with the ratchet wheel 9 to fix the ratchet wheel 9; by using the principle of the ratchet wheel 9, the drill rod 5 is in a locking state when rotating forwards and in a loosening state when rotating backwards, so that the drill rod 5 can be screwed in conveniently.

Furthermore, one end of the connecting cylinder 13 is in threaded connection with an adjusting sealing cap 2; corresponding pin holes are formed in the adjusting sealing cap 2 and the connecting cylinder 13, positioning pins 14 are arranged in the pin holes, and the movable teeth 11 are rotatably arranged on the positioning pins 14; the fixed screens piece 16 that is equipped with on the drilling rod 5, be equipped with the spacing groove that matches with screens piece 16 in the connecting cylinder 13, screens piece 16 is located and adjusts between block 2 and the ratchet 9, and screens piece 16 follows the drilling rod and rotates together, and can prevent to produce axial slip after drilling rod 5 pushes down through the cooperation of screens piece 16 and spacing groove, improves the steadiness of getting the bone drill.

Furthermore, one end of the drill rod 5 close to the saw teeth 1 is provided with a long hole groove 6.

Furthermore, the handle 4, the connector 3, the locking screw 7 and the drill rod 5 are respectively provided with a communicated round hole, and bone fragments drilled are stored in the round holes, so that sampling is facilitated.

Furthermore, the handle 4, the connector 3, the locking screw 7, the bearing 10, the drill rod 5, the positioning pin 14, the movable teeth 11, the spring 12, the adjusting seal cap 2 and the clamping block 16 are all made of stainless steel.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An operation bone taking drill is characterized by comprising a handle, a connector, a locking screw, movable teeth, a drill rod and an adjusting sealing cap; the locking screw is fixedly arranged on the handle; the connector is fixedly arranged at one end of the locking screw; one end of the drill rod is integrally provided with a ratchet wheel, and the other end of the drill rod is provided with sawteeth; the drill rod is movably arranged on the connecting head, and the ratchet wheel is positioned inside the connecting head; the movable teeth are hinged in the connector, and ratchets matched with the ratchet wheel are integrally arranged on the movable teeth.

2. The surgical bone drill of claim 1, wherein the locking screw is threadably connected to the handle; and the other end of the locking screw is provided with a hexagonal groove.

3. The surgical bone drill of claim 2, wherein a connecting block matching the hexagonal groove is integrally formed at one end of the connector.

4. The surgical bone drill of claim 1, wherein the connector comprises an integrally formed shaft and connector barrel; the drill rod is arranged in the connecting cylinder in a rotating mode through the bearing.

5. The surgical bone drill of claim 4, wherein a spring is fixedly disposed within the connecting cylinder, one end of the spring being fixedly disposed on the movable tooth.

6. The surgical bone drill of claim 4, wherein an adjustment cap is threaded into one end of the connector barrel; the drill rod is fixedly provided with a clamping block, a limiting groove matched with the clamping block is formed in the connecting cylinder, and the clamping block is located between the adjusting sealing cap and the ratchet wheel.

7. The surgical bone drill of claim 1, wherein the end of the drill shaft adjacent the saw teeth is provided with an elongated slot.

8. The surgical bone drill of claim 1, wherein the handle, the connector, the locking screw and the drill stem are provided with circular holes for communication, respectively.