CN218391208U - Arc osteotome - Google Patents

Abstract

The utility model discloses an arc osteotome, which belongs to the technical field of medical instruments, and comprises a scalpel head and a scalpel handle for installing the scalpel head, wherein the scalpel handle is arranged in a cavity, the inner cavity of the scalpel handle is rotationally connected with a rotating seat, the upper end and the lower end of the rotating seat are rotationally connected with the inner wall of the scalpel handle through a rotating shaft, one side of the rotating seat penetrates through the scalpel handle and extends to the outside of the scalpel handle to be connected with the scalpel head through a connecting component; the utility model discloses possess the function that can carry out the regulation to the use angle of tool bit, tool bit and handle of a knife are sharp setting in normal use, when the bone of joint department is rejected to needs, user's accessible drive assembly and drive assembly drive and rotate the seat and rotate, and then drive the tool bit through connecting seat and blade holder and rotate to adjust its use angle, after the use angle regulation to the tool bit is accomplished, user's accessible locating lever is fixed the use angle of tool bit.

Description

Arc osteotome

Technical Field

The utility model relates to the technical field of medical equipment, specifically an arc osteotome.

Background

At present, the intervertebral foramen mirror technology is widely applied to spinal surgery, the treatment of sclerotin is an essential step for nerve decompression, and the treatment tools of sclerotin at present are mainly a full-visual trepan, an endoscopic osteotome and an endoscopic power.

Chinese patent with application number CN201821279123.3 discloses a bone knife of pouring into under intervertebral foramen mirror, this utility model discloses a through being equipped with handle of a knife and fixed slot, diversified fixed slot design, diversified handle is connected among the adaptable current medical equipment, make things convenient for medical staff's operation, the tool bit comprises multiple angle, applicable in the operation of different operation contents, be applicable to cutting or striking off focus department, more traditional single form's bone knife, can provide more convenient, effectual operation, the tool bit width increases the back, the cutter arbor passes through intervertebral foramen mirror bottom, reach intervertebral foramen mirror head back, pass through the fixed slot with the handle of a knife and be connected, the whole equipment of accomplishing bone knife is operated again, when minimal access surgery, can intercept the peripheral skeleton or the tissue in mirror field of vision, the scope of operation under the mirror has been enlarged.

The patent still has some obvious defects in the in-service use, and this bone sword under mirror, it can not turn, and it is limited to get rid of the bone, can not well carry out the bone to the joint department and reject, therefore we need propose an arc osteotome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an arc osteotome possesses and can be convenient for adjust the use angle of tool bit to the advantage of joint department demand of picking bones, with the problem of proposing in solving above-mentioned background art.

In order to realize the above-mentioned purpose, the utility model provides an arc osteotome, include the tool bit and be used for installing the handle of a knife of tool bit, the handle of a knife is the cavity setting, the inner chamber of handle of a knife rotates and is connected with the rotation seat, the upper and lower both ends of rotating the seat all link together through the inner wall rotation of axis of rotation and handle of a knife, one side of rotating the seat is run through the handle of a knife and is extended to the outside of handle of a knife and link together through coupling assembling and tool bit, and wherein a set of install in the axis of rotation and be used for carrying out the drive assembly of angle modulation to the tool bit, the drive assembly that is used for carrying out the drive to drive assembly is still installed to the one end of handle of a knife.

Preferably, the connecting assembly comprises a connecting seat fixedly installed on one side of the outer portion of the cutter handle, the connecting seat is fixedly installed on one side of the connecting seat and is located on one side of the outer portion of the cutter handle, one side of the connecting seat is connected with one end of the cutter handle in a sliding mode, a cutter holder is fixedly installed on the other side of the connecting seat, and one side of the cutter holder is fixedly connected with the surface of the cutter head.

Preferably, the transmission assembly comprises a transmission gear fixedly mounted on the surface of one group of the rotating shafts, a transmission toothed plate is meshed with one side of the transmission gear, and a connecting plate is fixedly connected to one end of the transmission toothed plate.

Preferably, the driving assembly comprises a driving rod fixedly installed on the surface of the connecting plate, a lead screw is fixedly connected to one end of the driving rod, a sliding sleeve is connected to the surface of the lead screw in a threaded mode, a rotating knob is connected to one end of the cutter handle in a rotating mode, one end of the sliding sleeve is connected with the rotating knob in a clamping mode through a clamping assembly, and a limiting assembly is arranged between the driving rod and the cutter handle.

Preferably, the clamping assembly comprises a clamping groove formed in the surface of the rotating knob, one end of the sliding sleeve penetrates through the tool shank and extends to the outside of the tool shank, a clamping block matched with the clamping groove is fixedly installed on the outside of the tool shank, and the surface of the clamping block is clamped with the inner wall of the clamping groove.

Preferably, the limiting assembly comprises a limiting sleeve which is connected to the surface of the driving rod in a sliding mode, the upper side and the lower side of the limiting sleeve are fixedly connected with supporting rods, one end, away from the limiting sleeve, of each supporting rod is fixedly connected with the inner wall of the corresponding cutter handle, the inner wall of the limiting sleeve is fixedly connected with a limiting rod, a limiting groove matched with the limiting rod is formed in the surface of the driving rod, and the surface of the limiting rod is connected with the inner wall of the limiting groove in a sliding mode.

Preferably, the surface of the knob is in threaded connection with a positioning rod, and one end of the positioning rod penetrates through the knob and extends to an inner cavity of the knob to be attached to the surface of the knife handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses possess the function that can adjust the angle of use of tool bit, tool bit and handle of a knife are the sharp setting in the normal use, when the bone of joint department needs to be rejected, the user can drive the rotation seat through drive assembly and rotate, and then drive the tool bit through connecting seat and blade holder and rotate, in order to adjust its angle of use, after the angle of use to the tool bit is adjusted and is accomplished, the user can fix the angle of use of tool bit through the registration arm;

2. the utility model discloses a setting of spacing subassembly can carry out the location support to the use position of actuating lever, can carry on spacingly to it simultaneously, prevents that the actuating lever from following the sliding sleeve and rotating, through the setting of joint subassembly, can turn round with the sliding sleeve joint together to turn round through rotating and drive actuating lever and pinion rack and remove, and then drive and rotate the seat and rotate, in order to realize carrying out the purpose of angle modulation to the tool bit.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the knife handle of the present invention;

fig. 3 is a schematic structural diagram of the driving assembly of the present invention;

fig. 4 is a schematic structural view of the transmission assembly of the present invention;

fig. 5 is a schematic structural view of the limiting assembly of the present invention.

In the figure: 1. a cutter head; 2. a knife handle; 3. rotating the base; 4. a rotating shaft; 5. a connecting seat; 6. a tool apron; 7. a transmission gear; 8. a transmission toothed plate; 9. a connecting plate; 10. a drive rod; 11. a screw rod; 12. a sliding sleeve; 13. turning; 14. a card slot; 15. a clamping block; 16. a position limiting sleeve; 17. a support bar; 18. a limiting rod; 19. a limiting groove; 20. and (5) positioning the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Please refer to fig. 1-5, the utility model provides an arc osteotome, including tool bit 1 and the handle of a knife 2 that is used for installing tool bit 1, handle of a knife 2 is the cavity setting, the inner chamber of handle of a knife 2 rotates and is connected with rotation seat 3, the upper and lower both ends of rotation seat 3 all rotate through axis of rotation 4 and link together with the inner wall of handle of a knife 2, one side of rotation seat 3 runs through handle of a knife 2 and extends to the outside of handle of a knife 2 and links together with tool bit 1 through coupling assembling, coupling assembling includes connecting seat 5 that fixed mounting rotation seat 3 is located handle of a knife 2 outside one side, one side of connecting seat 5 and the one end sliding connection of handle of a knife 2, the opposite side fixed mounting of connecting seat 5 has blade holder 6, one side of blade holder 6 is connected with the fixed surface of tool bit 1, use through coupling assembling and rotation seat 3 and axis of rotation 4, can be in the same place tool bit 1 is articulated with handle of a knife 2, so that the user adjusts the use angle of tool bit 1;

preferably, a transmission assembly used for adjusting the angle of the tool bit 1 is installed on one group of rotating shafts 4, the transmission assembly comprises a transmission gear 7 fixedly installed on the surface of the one group of rotating shafts 4, a transmission toothed plate 8 is meshed with one side of the transmission gear 7, one end of the transmission toothed plate 8 is fixedly connected with a connecting plate 9, one end of the tool shank 2 is also provided with a driving assembly used for driving the transmission assembly, the driving assembly comprises a driving rod 10 fixedly installed on the surface of the connecting plate 9, one end of the driving rod 10 is fixedly connected with a lead screw 11, the surface of the lead screw 11 is in threaded connection with a sliding sleeve 12, one end of the tool shank 2 is rotatably connected with a knob 13, the surface of the knob 13 is in threaded connection with a positioning rod 20, and one end of the positioning rod 20 penetrates through the knob 13 and extends to an inner cavity of the knob 13 to be attached to the surface of the tool shank 2;

through the matching use of the driving component and the transmission component, when the use angle of the tool bit 1 needs to be adjusted, a user can rotate the rotating knob 13, the rotating knob 13 rotates to drive the sliding sleeve 12 to rotate, the sliding sleeve 12 rotates to drive the lead screw 11 to move, the lead screw 11 moves to drive the transmission toothed plate 8 to move through the driving rod 10 and the connecting plate 9, the transmission toothed plate 8 moves to drive the transmission gear 7 to rotate, the transmission gear 7 rotates to drive the connecting seat 5 and the tool apron 6 to rotate through the rotating shaft 4 and the rotating seat 3, so that the tool bit 1 is driven to rotate, the use angle of the tool bit 1 is adjusted, and after the use angle of the tool bit 1 is adjusted, the user can position the use angle of the tool bit 1 through the positioning rod 20;

one end of the sliding sleeve 12 is clamped with the knob 13 through a clamping component, the clamping component comprises a clamping groove 14 formed in the surface of the knob 13, one end of the sliding sleeve 12 penetrates through the handle 2 and extends to the outside of the handle 2, a clamping block 15 matched with the clamping groove 14 is fixedly installed on the outer side of the handle 2, the surface of the clamping block 15 is clamped with the inner wall of the clamping groove 14, and through the arrangement of the clamping component, the surface of the clamping block 15 is clamped with the clamping groove 14 in the knob 13, so that a user can drive the sliding sleeve 12 to rotate when the knob 13 is rotated;

it is worth explaining, be provided with spacing subassembly between actuating lever 10 and the handle of a knife 2, spacing subassembly includes sliding connection in the stop collar 16 on actuating lever 10 surface, the equal fixedly connected with bracing piece 17 in upper and lower both sides of stop collar 16, the one end that stop collar 16 was kept away from to bracing piece 17 and the inner wall fixed connection of handle of a knife 2, the inner wall fixedly connected with gag lever post 18 of stop collar 16, spacing groove 19 with gag lever post 18 looks adaptation is seted up on the surface of actuating lever 10, the surface of gag lever post 18 and the inner wall sliding connection of gag lever post 19, stop collar 16 and bracing piece 17 cooperation are used, can play the supporting role to actuating lever 10 and transmission pinion rack 8, and use through the cooperation of gag lever post 18 and spacing groove 19, can prevent that lead screw 11 from following sliding sleeve 12 and rotating.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an arc osteotome, includes tool bit (1) and is used for installing handle of a knife (2) of tool bit (1), its characterized in that: handle of a knife (2) are the cavity setting, the inner chamber of handle of a knife (2) rotates and is connected with rotation seat (3), the upper and lower both ends of rotating seat (3) all rotate through axis of rotation (4) and the inner wall of handle of a knife (2) and link together, one side of rotating seat (3) is run through handle of a knife (2) and is extended to the outside of handle of a knife (2) and link together through coupling assembling and tool bit (1), and wherein a set of install the drive assembly who is used for carrying out angle modulation to tool bit (1) on axis of rotation (4), the one end of handle of a knife (2) still installs and is used for carrying out driven drive assembly to drive assembly.

2. The curved osteotome defined in claim 1, wherein: coupling assembling includes that fixed mounting rotates connecting seat (3) and is located connecting seat (5) of handle of a knife (2) outside one side, one side of connecting seat (5) and the one end sliding connection of handle of a knife (2), the opposite side fixed mounting of connecting seat (5) has blade holder (6), the fixed surface of one side and tool bit (1) of blade holder (6) is connected.

3. The curved osteotome defined in claim 1, wherein: the transmission assembly comprises a transmission gear (7) fixedly mounted on the surface of one group of the rotating shafts (4), one side of the transmission gear (7) is meshed with a transmission toothed plate (8), and one end of the transmission toothed plate (8) is fixedly connected with a connecting plate (9).

4. The curved osteotome defined in claim 3, wherein: the driving assembly comprises a driving rod (10) fixedly installed on the surface of a connecting plate (9), a lead screw (11) is fixedly connected to one end of the driving rod (10), a sliding sleeve (12) is connected to the surface of the lead screw (11) in a threaded mode, a rotating knob (13) is connected to one end of the knife handle (2) in a rotating mode, one end of the sliding sleeve (12) is connected with the rotating knob (13) in a clamped mode through a clamping assembly, and a limiting assembly is arranged between the driving rod (10) and the knife handle (2).

5. The curved osteotome defined in claim 4 wherein: the clamping component comprises a clamping groove (14) formed in the surface of the knob (13), one end of the sliding sleeve (12) penetrates through the knife handle (2) and extends to the outside of the knife handle (2), a clamping block (15) matched with the clamping groove (14) is fixedly installed on the outer side of the knife handle, and the surface of the clamping block (15) is clamped with the inner wall of the clamping groove (14).

6. The curved osteotome defined in claim 4 wherein: spacing subassembly includes sliding connection in stop collar (16) on actuating lever (10) surface, the equal fixedly connected with bracing piece (17) in upper and lower both sides of stop collar (16), the inner wall fixed connection of the one end of stop collar (16) and handle of a knife (2) is kept away from in bracing piece (17), the inner wall fixedly connected with gag lever post (18) of stop collar (16), spacing groove (19) with gag lever post (18) looks adaptation is seted up on the surface of actuating lever (10), the inner wall sliding connection of the surface of gag lever post (18) and spacing groove (19).

7. The curved osteotome defined in claim 4, wherein: the surface of the knob (13) is in threaded connection with a positioning rod (20), and one end of the positioning rod (20) penetrates through the knob (13) and extends to an inner cavity of the knob (13) to be attached to the surface of the cutter handle (2).

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