CN111528970A

CN111528970A - Implanting tool for fixing orthopaedic prosthesis

Info

Publication number: CN111528970A
Application number: CN202010360477.6A
Authority: CN
Inventors: 胡令江
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-08-14

Abstract

The invention discloses an implantation tool for fixing an orthopaedic prosthesis, relates to the technical field of medical instruments, and solves the problem that the conventional orthopaedic drilling machine is generally a fixed straight structure, and the conventional drilling machine is often inconvenient to operate in use because bones, particularly joints, have a plurality of uneven structures; a group of swing arms are connected to the hinge of the drilling machine main body; the left side of the swing arm is axially connected with a group of rotating shafts; the left side of the rotating shaft is connected with a group of drilling tools in an inserting manner; the top of the drilling machine main body is axially connected with a group of adjusting rotating shafts; the top of the left side of the drilling machine main body is axially connected with two groups of middle rotating shafts. The device adopts the structure that can swing, can adapt to the action such as punching, polishing, elasticity screw under any angle, and it is more convenient to use, is fit for operating the position of the inconvenient operation of angle a bit, can realize the quick replacement of cutter instrument simultaneously, convenient operation, the availability factor is high.

Description

Implanting tool for fixing orthopaedic prosthesis

Technical Field

The invention relates to the technical field of medical instruments, in particular to an implantation tool for fixing an orthopaedic prosthesis.

Background

In orthopedic treatment, the artificial prosthesis can be replaced for serious joint diseases to replace human joints, so that normal activities of patients are guaranteed, and actions such as cutting, grinding, punching, screw installation and the like on the existing bones are required in the implantation process of the artificial prosthesis, so that various tools are required.

For example, application No.: the invention discloses a CN200910144125.0 combined medical orthopedic electric drill, which comprises: the frame, be provided with the handle on the frame, be provided with the lithium cell inside the frame, be provided with the connecting seat inside the handle, be provided with charging connector on the connecting seat, be provided with the speed governing switch on hand, be provided with the casing in the upper end of handle, inside at the casing is provided with DC brushless motor, be provided with the driving gear in DC brushless motor's pivot, the driving gear is with the driven gear intermeshing who sets up on the inside transmission shaft of casing upper end, be provided with the connector on the front end of driven shaft, be provided with connecting hole and shaft hole in connector and driven shaft respectively, the connecting hole, the shaft hole communicates with each other with the through-hole of seting up in the casing upper end, be provided with universal joint on. The advantages are that: the electric drill can be connected with a Kirschner wire chuck, has complete functions, is a direct-current brushless motor, has higher power and large generated torque, has protective measures for the motor, and has longer service life. .

Based on the above, the existing orthopaedics drilling machine is generally a fixed straight structure, and in use, because bones, particularly joints, have a plurality of uneven structures, the existing drilling machine often has the problem of inconvenient operation in use; thus, the existing need is not met, for which we propose an implantation tool for the fixation of orthopaedic prostheses.

Disclosure of Invention

The present invention aims to provide an implant tool for the fixation of an orthopaedic prosthesis, which solves the problem that the existing orthopaedic drills proposed in the above background art are generally of a fixed straight structure, and in use, the existing drills often have inconvenient operation due to the uneven structure of bones, particularly joints.

In order to achieve the purpose, the invention provides the following technical scheme: an implant tool for orthopaedic prosthesis fixation comprising a drill body; a group of swing arms are connected to the hinge of the drilling machine main body; the left side of the swing arm is axially connected with a group of rotating shafts; the left side of the rotating shaft is connected with a group of drilling tools in an inserting manner; a group of cutter mounting operation blocks are axially and slidably connected inside the rotating shaft; two groups of cutter mounting positioning blocks are radially and slidably connected inside the rotating shaft; the top of the drilling machine main body is axially connected with a group of adjusting rotating shafts; the top of the left side of the drilling machine main body is axially connected with two groups of middle rotating shafts.

Preferably, the drilling machine main body further comprises a universal joint coupler, a group of universal joint couplers are fixedly connected to a rotating shaft of the drilling machine main body, and the drilling machine main body is in transmission connection with the rotating shaft through the universal joint couplers.

Preferably, the adjusting rotating shaft further comprises a driving gear, a group of driving gears are coaxially and fixedly connected with the left end face of the adjusting rotating shaft, the middle rotating shaft further comprises a driven gear, a group of driven gears are coaxially and fixedly connected with the right end face of the middle rotating shaft, and the driving gear and the driven gears are meshed to form a gear transmission mechanism together.

Preferably, the middle rotating shaft further comprises a swing worm, the left end face of the middle rotating shaft is coaxially and fixedly connected with a group of swing worms, the swing arm further comprises a swing worm wheel, the right side of the swing arm is fixedly connected with a group of swing worm wheels, and the swing worm wheel are meshed to form a worm and gear transmission mechanism.

Preferably, the rotating shaft further comprises a sliding groove, a group of through long groove-shaped sliding grooves are formed in the rotating shaft in a navigation mode, and the cutter mounting operation block slides in the sliding groove and is elastically connected with the rotating shaft through a spring.

Preferably, the cutter mounting and positioning block further comprises a guide groove, and a set of guide grooves are formed in the left side and the right side of the cutter mounting and positioning block), the cutter mounting and positioning block is connected with the rotating shaft in a sliding mode through the guide grooves, and the two sets of cutter mounting and positioning blocks are connected through springs in an elastic mode.

Preferably, the cutter installation operation block further comprises a driving inclined plane, a group of driving inclined planes are arranged on the outer side of the cutter installation operation block, the cutter installation positioning block further comprises a driven inclined plane, two groups of driven inclined planes are arranged on the inner side of the cutter installation positioning block, and the driving inclined planes and the driven inclined planes form inclined plane matching.

Preferably, the drilling tool further comprises a transmission flat head and a positioning bayonet, the right side of the drilling tool is provided with a group of transmission flat head, a group of positioning bayonet is respectively arranged on two sides of the transmission flat head, the tool mounting and positioning block further comprises a positioning fixture block, and the inner side of the tool mounting and positioning block is provided with a group of positioning fixture block.

Compared with the prior art, the invention has the beneficial effects that:

the device has realized the swing of swing arm through adopting gear drive and worm gear drive, has realized the length of axis of rotation through the universal joint coupling simultaneously, can adapt to the action such as punching, polishing, elasticity screw under any angle, and it is more convenient to use, is fit for operating the position of the inconvenient operation of angle a bit.

The device realizes the loosening and clamping of the cutter mounting and positioning block by adopting the inclined plane matching, is convenient to use, and can realize the quick replacement of a cutter tool.

The device adopts the structure that can swing, can adapt to the action such as punching, polishing, elasticity screw under any angle, and it is more convenient to use, is fit for operating the position of the inconvenient operation of angle a bit, can realize the quick replacement of cutter instrument simultaneously, convenient operation, the availability factor is high.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic view of the internal axial side structure of the present invention;

FIG. 3 is a schematic side view of the universal joint coupling mounting shaft of the present invention;

FIG. 4 is a schematic side view of a drilling tool mounting shaft according to the present invention;

FIG. 5 is a schematic side view of the transmission shaft of the positioning block for mounting a cutting tool of the present invention;

FIG. 6 is a schematic axial side view of the tool mounting block of the present invention;

FIG. 7 is a schematic axial side view of the positioning block for mounting a cutting tool according to the present invention;

FIG. 8 is a schematic side view of the drilling tool of the present invention;

in the figure: 1. a drill body; 101. a universal joint coupling; 2. a swing arm; 201. a wobble worm gear; 3. a rotating shaft; 301. a sliding groove; 4. a drilling tool; 401. a flat driving head; 402. positioning the bayonet; 5. adjusting the rotating shaft; 501. a driving gear; 6. an intermediate rotating shaft; 601. a driven gear; 602. a wobble worm; 7. a cutter mounting operation block; 701. a drive ramp; 8. a positioning block is arranged on the cutter; 801. positioning a fixture block; 802. a guide groove; 803. driven inclined plane.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: an implantation tool for orthopaedic prosthesis fixation, comprising a drill body 1; a group of swing arms 2 are connected to the hinge of the drilling machine main body 1; a group of rotating shafts 3 are axially connected to the left side of the swing arm 2; the drilling machine main body 1 further comprises a universal joint coupler 101, a group of universal joint couplers 101 are fixedly connected to a rotating shaft of the drilling machine main body 1, the drilling machine main body 1 is in transmission connection with the rotating shaft 3 through the universal joint couplers 101, and when the drilling machine main body 1 is used, the rotating shaft 3 can normally rotate at any angle through the universal joint couplers 101; the rotating shaft 3 further comprises a sliding groove 301, the rotating shaft 3 is provided with a group of through long groove-shaped sliding grooves 301 in a navigation mode, and the cutter installation operation block 7 slides in the sliding grooves 301 and is elastically connected with the rotating shaft 3 through a spring; the left side of the rotating shaft 3 is connected with a group of drilling tools 4 in an inserting way; the cutter installation operation block 7 further comprises a driving inclined plane 701, a group of driving inclined planes 701 is arranged on the outer side of the cutter installation operation block 7, the cutter installation positioning block 8 further comprises a driven inclined plane 803, two groups of driven inclined planes 803 are arranged on the inner side of the cutter installation positioning block 8, the driving inclined planes 701 and the driven inclined planes 803 form inclined plane matching, and when the cutter installation operation block 7 slides to the left in use, the cutter installation operation block 7 drives the cutter installation positioning block 8 to slide to the inner side through the inclined plane matching; a group of cutter mounting operation blocks 7 are axially and slidably connected inside the rotating shaft 3; two groups of cutter mounting and positioning blocks 8 are radially and slidably connected inside the rotating shaft 3; the cutter mounting and positioning block 8 further comprises guide grooves 802, a group of guide grooves 802 are respectively arranged on the left side and the right side of the cutter mounting and positioning block 8, the cutter mounting and positioning block 8 is connected with the rotating shaft 3 in a sliding mode through the guide grooves 802, and the two groups of cutter mounting and positioning blocks 8 are elastically connected through springs; the top of the drilling machine main body 1 is axially connected with a group of adjusting rotating shafts 5; the adjusting rotating shaft 5 further comprises a driving gear 501, the left end face of the adjusting rotating shaft 5 is coaxially and fixedly connected with a group of driving gears 501, the middle rotating shaft 6 further comprises a driven gear 601, the right end face of the middle rotating shaft 6 is coaxially and fixedly connected with a group of driven gears 601, the driving gears 501 and the driven gears 601 are meshed to form a gear transmission mechanism together, and when the adjusting rotating shaft 5 is rotated in use, the adjusting rotating shaft 5 drives the middle rotating shaft 6 to rotate through the gear transmission mechanism; the top of the left side of the drilling machine main body 1 is axially connected with two groups of middle rotating shafts 6; the middle rotating shaft 6 further comprises a swing worm 602, the left end face of the middle rotating shaft 6 is coaxially and fixedly connected with a group of swing worms 602, the swing arm 2 further comprises a swing worm wheel 201, the right side of the swing arm 2 is fixedly connected with a group of swing worm wheels 201, the swing worm 602 and the swing worm wheels 201 are meshed to form a worm and gear transmission mechanism together, in use, the middle rotating shaft 6 rotates, and the middle rotating shaft 6 drives the swing arm 2 to swing through the worm and gear transmission mechanism.

Further, the drilling tool 4 further comprises a transmission flat head 401 and a positioning bayonet 402, the right side of the drilling tool 4 is provided with a group of transmission flat head 401, a group of positioning bayonet 402 is respectively arranged on two sides of the transmission flat head 401, the tool mounting and positioning block 8 further comprises a positioning fixture block 801, the inner side of the tool mounting and positioning block 8 is provided with a group of positioning fixture block 801, the drilling tool 4 is axially positioned through the transmission flat head 401 in use, and the positioning fixture block 801 is matched with the clamping bayonet 402 to axially position the drilling tool 4.

The working principle is as follows: when the drilling tool is used, the adjusting rotating shaft 5 is rotated, the adjusting rotating shaft 5 drives the middle rotating shaft 6 to rotate through the gear transmission mechanism, the middle rotating shaft 6 drives the swinging arm 2 to swing through the worm and gear transmission mechanism, the installation direction of the swinging arm 2 is adjusted, when the drilling tool 4 is installed, the tool installation operation block 7 slides rightwards, the transmission flat head 401 is inserted into the rotating shaft 3, the tool installation operation block 7 is loosened, the tool installation operation block 7 slides leftwards under the reset action of the spring, and the tool installation operation block 7 drives the tool installation positioning block 8 to slide inwards to slide the positioning clamping block 801 and the clamping and matching of the positioning bayonet 402 through the inclined plane matching to axially position the drilling tool 4; the drilling tool 4 can be replaced by various rotary grinding heads, cutters, screwdrivers and other tools in use.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An implantation tool for orthopaedic prosthesis fixation, characterized in that: comprising a drill body (1); a group of swing arms (2) are connected to the hinge of the drilling machine main body (1); the left side of the swing arm (2) is axially connected with a group of rotating shafts (3); the left side of the rotating shaft (3) is connected with a group of drilling tools (4) in an inserting manner; a group of cutter mounting operation blocks (7) are axially and slidably connected inside the rotating shaft (3); two groups of cutter mounting positioning blocks (8) are radially and slidably connected inside the rotating shaft (3); the top of the drilling machine main body (1) is axially connected with a group of adjusting rotating shafts (5); the top of the left side of the drilling machine main body (1) is axially connected with two groups of middle rotating shafts (6).

2. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the drilling machine main body (1) further comprises a universal joint coupler (101), a group of universal joint couplers (101) are fixedly connected to a rotating shaft of the drilling machine main body (1), and the drilling machine main body (1) is in transmission connection with the rotating shaft (3) through the universal joint couplers (101).

3. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the adjusting rotating shaft (5) further comprises a driving gear (501), a group of driving gears (501) are coaxially and fixedly connected with the left end face of the adjusting rotating shaft (5), the middle rotating shaft (6) further comprises a driven gear (601), a group of driven gears (601) are coaxially and fixedly connected with the right end face of the middle rotating shaft (6), and the driving gear (501) and the driven gears (601) are meshed to form a gear transmission mechanism together.

4. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the middle rotating shaft (6) further comprises a swing worm (602), the left end face of the middle rotating shaft (6) is coaxially and fixedly connected with a group of swing worms (602), the swing arm (2) further comprises a swing worm wheel (201), the right side of the swing arm (2) is fixedly connected with a group of swing worm wheels (201), and the swing worm (602) and the swing worm wheel (201) are meshed to form a worm and gear transmission mechanism together.

5. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the rotating shaft (3) further comprises a sliding groove (301), a group of through long groove-shaped sliding grooves (301) are formed in the rotating shaft (3) in a navigation mode, and the cutter installation operation block (7) slides in the sliding grooves (301) and is elastically connected with the rotating shaft (3) through a spring.

6. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: cutter installation and positioning piece (8) are still including guide way (802), and the left and right sides of cutter installation and positioning piece 8) all is provided with a set of guide way (802), cutter installation and positioning piece (8) are through guide way (802) and axis of rotation (3) sliding connection, and pass through spring elastic connection between two sets of cutter installation and positioning piece (8).

7. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the cutter installation operation block (7) further comprises a driving inclined plane (701), the outer side of the cutter installation operation block (7) is provided with a group of driving inclined planes (701), the cutter installation positioning block (8) further comprises a driven inclined plane (803), the inner side of the cutter installation positioning block (8) is provided with two groups of driven inclined planes (803), and the driving inclined plane (701) and the driven inclined planes (803) form inclined plane matching.

8. An implantation tool for orthopaedic prosthesis fixation according to claim 1, wherein: the drilling tool (4) further comprises a transmission flat head (401) and a positioning bayonet (402), a group of transmission flat heads (401) are arranged on the right side of the drilling tool (4), a group of positioning bayonets (402) are arranged on two sides of each transmission flat head (401), the tool mounting and positioning block (8) further comprises a positioning fixture block (801), and a group of positioning fixture blocks (801) are arranged on the inner side of the tool mounting and positioning block (8).