CN220778396U

CN220778396U - Electric bone drill with positioning drill bit

Info

Publication number: CN220778396U
Application number: CN202321828320.7U
Authority: CN
Inventors: 钟书杰; 钟晨
Original assignee: Zhenjiang Renjie Medical Devices Co ltd
Current assignee: Zhenjiang Renjie Medical Devices Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-04-16
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses an electric bone drill with a positioning drill bit, which comprises a handheld part and a shell, wherein the shell is erected at the top of the handheld part, and one end of the shell is provided with a positioning assembly and a drill bit assembly; the positioning component comprises a rotating piece and a positioning piece, wherein the rotating piece is movably connected to one end of the shell, and the positioning piece is rotationally fixed in the rotating piece; the drill bit assembly is connected with a motor inside the shell; according to the utility model, the positioning assembly is arranged on the outer side of the drill bit assembly, so that the electric bone drill can position the drill bit by using the positioning assembly before drilling bone, and the needle inserting direction of the electric bone drill is vertical to the bone surface, so that the electric bone drill cannot swing in the bone drilling process, and the positioning assembly can be adjusted according to the length of the drill bit, so that the electric bone drill is suitable for various operation environments, the smooth completion of an operation is ensured, and medical accidents are avoided.

Description

Electric bone drill with positioning drill bit

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an electric bone drill with a positioning drill bit.

Background

The electric bone drill is an electric tool for drilling holes in bones in surgical operations, is suitable for bone tissue operations implemented by providing mechanical power, and is generally divided into a bone drill bit, a swing saw bit, a hollow drill bit and the like.

In the process of drilling the bone by the electric bone drill, the direction of the drill needle is not opposite to the direction of the drill needle or the medical staff holds the handle of the drill bit unstable, the drill bit can swing left and right, the drill bit and the steel plate are crossed and angled to generate leverage, the fulcrum is stressed too much at the edge of the screw hole of the steel plate, the drill bit is broken, and the medical accident that the bone drill bit breaks in the bone can occur.

Disclosure of utility model

The utility model aims to solve the technical problem of providing an electric bone drill with a positioning drill bit, which is used for positioning the drill bit to enable the needle inserting direction to be vertical, and the operation process is kept stable, so that the drill bit is prevented from swinging and breaking.

Based on the technical problems in the background technology, the utility model provides an electric bone drill with a positioning drill bit, which comprises a handheld part and a shell, wherein the shell is erected on the top of the handheld part, and one end of the shell is provided with a positioning assembly and a drill bit assembly;

the positioning assembly comprises a rotating piece and a positioning piece, wherein the rotating piece is movably connected to one end of the shell, the positioning piece is rotationally fixed in the rotating piece, and one end of the positioning piece is provided with a plurality of positioning struts which are vertically positioned;

the drill bit assembly is connected with the motor inside the shell, and the positioning assembly is arranged on the outer side of the drill bit assembly.

Preferably, the drill bit assembly comprises a rotating shaft, a fixed sleeve and a drill bit, wherein one end of the rotating shaft is connected with the fixed sleeve, the other end of the rotating shaft is connected with an internal servo motor, and the other end of the fixed sleeve is fixed with the drill bit.

Preferably, the rotating member is a cylindrical sleeve, a movable ring is arranged on the outer surface of the rotating member, a threaded channel is arranged in the rotating member, and the movable ring is connected with one end of the shell in an internal fit manner.

Preferably, the rotating member is further provided with anti-slip patterns.

Preferably, one end of the positioning member is provided with a thread sleeve matched with the thread channel, and a plurality of positioning struts are uniformly arranged at one end of the thread sleeve at intervals.

Preferably, the lengths of the positioning struts correspond to the lengths of the drill bits, and one ends of the positioning struts are provided with movable supports.

Preferably, a control button for controlling the servo motor is arranged on the handheld part, and a power supply battery is arranged inside the handheld part.

Compared with the prior art, the electric bone drill with the positioning drill bit provided by the utility model adopts the technical scheme, and achieves the following technical effects:

According to the utility model, the positioning assembly is arranged on the outer side of the drill bit assembly, so that the electric bone drill can position the drill bit by using the positioning assembly before drilling bone, and the needle inserting direction of the electric bone drill is vertical to the bone surface, so that the electric bone drill cannot swing in the bone drilling process, and the positioning assembly can be adjusted according to the length of the drill bit, so that the electric bone drill is suitable for various operation environments, the smooth completion of an operation is ensured, and medical accidents are avoided.

Drawings

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a schematic view of a portion of the structure of the present utility model;

FIG. 4 is a schematic view of a middle positioning assembly according to the present utility model;

FIG. 5 is a schematic view of the portion A of FIG. 4 according to the present utility model;

In the figure: 1. a hand-held part; 101. a control button; 2. a housing; 3. a rotating member; 301. a movable ring; 302. a threaded passage; 303. anti-skid lines; 4. a positioning piece; 401. positioning the support column; 402. a thread set; 403. a movable support; 5. a rotating shaft; 6. a fixed sleeve; 7. a drill bit.

Detailed Description

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-5, the utility model provides an electric bone drill with a positioning drill bit, which comprises a hand-held part 1 and a shell 2, wherein the shell 2 is erected on the top of the hand-held part 1, and one end of the shell 2 is provided with a positioning component and a drill bit component;

Specifically, the positioning assembly comprises a rotating member 3 and a positioning member 4, wherein the rotating member 3 is movably connected to one end of the shell 2, the positioning member 4 is rotatably fixed in the rotating member 3, and one end of the positioning member 4 is provided with a plurality of positioning struts 401 which are vertically positioned;

specifically, the drill bit assembly is connected with the motor inside the casing 2, and the positioning assembly is arranged on the outer side of the drill bit assembly.

In this embodiment, the electric bone drill is combined into a main body through the hand-held part 1 and the shell 2, the operation is implemented by using the positioning component and the drill bit component at the front end of the shell 2, before the operation is implemented, the internal positioning component 4 is screwed out through the rotation of the rotating component 3 in the positioning component, a plurality of positioning struts 401 arranged on the positioning component 4 extend towards the drill bit direction, the screwing can be stopped when the position of the positioning strut is close to that of the drill bit, the drill bit of the electric bone drill is aligned to the needle inlet area after that, and the needle inlet direction of the drill bit is vertical to the bone surface through the positioning of the positioning component, so that the stability of the electric bone drill in the operation is ensured, and the swing of the drill bit is avoided.

Referring to fig. 2, the drill bit assembly includes a rotation shaft 5, a fixing sleeve 6, and a drill bit 7, one end of the rotation shaft 5 is connected to the fixing sleeve 6, the other end is connected to an internal servo motor, and the other end of the fixing sleeve 6 fixes the drill bit 7.

In actual operation, the rotation shaft 5 is connected at the output end of the servo motor in the shell 2, and the fixed sleeve 6 is connected at the other end of the rotation shaft 5 and is used for fixing the drill bits 7 of different models, and the rotation shaft 5 directly controls the rotation of the drill bits, so that energy loss is reduced.

Referring to fig. 4, the rotary member 3 is a cylindrical sleeve, and has a movable ring 301 on its outer surface and a threaded passage 302 inside, and the movable ring 301 is coupled to one end of the housing 2 in an internal fit.

Specifically, the rotating member 3 is further provided with anti-skid patterns 303.

The rotating member 3 is a movable nut suite, and is matched with a groove in the shell 2 through the movable ring 301, so that the rotating member 3 can rotate at one end of the shell 2, anti-slip threads 303 are arranged on the outer side surface of the rotating member 3, the rotating friction force of the rotating member 3 is increased, the internal threaded channel 302 is matched with threads on the outer surface of the positioning member 4, the positioning member 4 can move in the rotating member 3, and the extending length of the positioning member 4 is adjusted.

Referring to fig. 4-5, the positioning member 4 has a threaded sleeve 402 at one end thereof that mates with the threaded channel 302, and a plurality of positioning posts 401 are spaced evenly apart at one end of the threaded sleeve 402.

The positioning struts 401 are uniformly arranged at intervals at one end of the thread sleeve 402, three positioning struts 401 are arranged in the embodiment, and the whole positioning struts are triangular, so that the stability of the positioning assembly in operation is ensured.

Specifically, the length of the plurality of positioning struts 401 corresponds to the length of the drill bit 7, and one end thereof is provided with a cradle 403.

The movable support 403 arranged at one end of the positioning support 401 can provide balance for the whole positioning assembly when facing uneven bone surface, so that the whole positioning assembly can be ensured to be stable in different operation environments, and the drill bit and the bone surface can be kept vertical, thereby ensuring the smooth operation process.

Referring to fig. 1, the hand-held part 1 is provided with a control button 101 for controlling a servo motor, and a power supply battery is provided therein.

The power supply of the internal power supply battery to the servo motor is controlled by the control button 101, so that the electric bone drill is started and stopped along with the start, and the electric bone drill is wireless and portable, so that the hidden power supply battery is arranged in the handheld part 1.

It should be noted that, in this embodiment, the positioning assembly is disposed outside the drill assembly, and the adjustment manner thereof does not affect the operation of the drill, so that the efficiency of the bone drill is not affected, and the operation efficiency is improved within a certain range.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The electric bone drill with the positioning drill bit comprises a handheld part (1) and a shell (2), wherein the shell (2) is erected at the top of the handheld part (1), and is characterized in that one end of the shell (2) is provided with a positioning component and a drill bit component;

The positioning assembly comprises a rotating piece (3) and a positioning piece (4), wherein the rotating piece (3) is movably connected to one end of the shell (2), the positioning piece (4) is rotationally fixed in the rotating piece (3), and a plurality of positioning struts (401) which are vertically positioned are arranged at one end of the positioning piece (4);

The drill bit assembly is connected with an internal motor of the shell (2), and the positioning assembly is arranged on the outer side of the drill bit assembly.

2. An electric bone drill with a positioning drill bit according to claim 1, characterized in that the drill bit assembly comprises a rotating shaft (5), a fixing sleeve (6), a drill bit (7), one end of the rotating shaft (5) is connected with the fixing sleeve (6), the other end is connected with an internal servo motor, and the other end of the fixing sleeve (6) is used for fixing the drill bit (7).

3. An electric bone drill with pilot bit according to claim 1, characterized in that the rotating member (3) is a cylindrical sleeve, on the outer surface of which a movable ring (301) is arranged, a threaded passage (302) is arranged inside, the movable ring (301) being connected with an inside of one end of the housing (2) in a mating manner.

4. A motorized bone drill with pilot bit according to claim 3, characterized in that the swivel (3) is further provided with anti-slip threads (303).

5. A powered bone drill with a pilot bit as claimed in claim 3 wherein said pilot member (4) has a threaded sleeve (402) at one end thereof for mating with said threaded passage (302), a plurality of said pilot struts (401) being spaced evenly about one end of said threaded sleeve (402).

6. An electric bone drill with a pilot bit according to claim 5, characterized in that a plurality of the pilot struts (401) have a length corresponding to the length of the drill bit (7) and are provided with a living at one end

A movable support (403).

7. An electric bone drill with a pilot bit according to claim 1, characterized in that the hand-held part (1) is provided with a control button (101) for controlling the servo motor, and a power supply battery is arranged inside.