CN214048981U

CN214048981U - Trepan for orthopedic operation

Info

Publication number: CN214048981U
Application number: CN202022177582.4U
Authority: CN
Inventors: 邱利峰; 陈增标
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-08-27
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a trepan that bone surgery used, which comprises a bod, top surface one side of organism is provided with the switch, be provided with actuating mechanism in the inner chamber of organism, actuating mechanism includes motor, first gear and second gear, the motor is fixed inner wall one side of organism, the output shaft of motor with first gear fixed connection, the second gear is located the inner chamber intermediate position of organism, the second gear with first gear engagement is connected. The utility model discloses in, through the adjustment mechanism who sets up, can adjust the angle that opens of four rounding knives through rotating the swivel becket, and then change the angle of cutting, can be according to the corresponding adjustment of operation needs, convenient to use.

Description

Trepan for orthopedic operation

Technical Field

The utility model relates to an orthopedic surgery technical field especially relates to a trepan that orthopedic surgery used.

Background

The trephine is a surgical instrument commonly used in orthopedics department, and is mainly used for operating intervertebral foramen and other positions and grinding and cutting target positions of vertebrae by utilizing the annular saw teeth at the end of the hoop squat.

The trepan for orthopedics that current market sells is longer hollow metal tube, one end is equipped with annular sawtooth, the other end is equipped with the handle that supplies to twist reverse the operation effect, during concrete operation, pierce vertebra target location with the one end of trepan for orthopedics annular sawtooth, it is rotatory to hold the handle on the other hand, it rotates to drive annular sawtooth, thereby carry out the grinding to the vertebra, this kind of method relies on the manual rotatory handle rotation of doctor, smear metal efficiency is lower, the opening size of trepan is fixed simultaneously, be not convenient for adjust cutting angle, need change not unidimensional trepan, it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a trepan for orthopedic surgery.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a trepan for orthopedic surgery comprises a machine body, wherein a switch is arranged on one side of the top surface of the machine body, a driving mechanism is arranged in an inner cavity of the machine body, and the driving mechanism comprises a motor, a first gear and a second gear;

the motor is fixed on one side of the inner wall of the machine body, an output shaft of the motor is fixedly connected with the first gear, the second gear is located in the middle of the inner cavity of the machine body, and the second gear is meshed with the first gear.

As a further improvement of the above technical solution:

one side of the second gear, which is far away from the motor, is provided with a partition board, the partition board is fixedly connected with the inner wall of the machine body, a transmission shaft is arranged at the center of the second gear, one end of the transmission shaft is fixedly connected with the second gear, the other end of the transmission shaft penetrates through the partition board and the inner wall of the machine body respectively, the transmission shaft is rotatably connected with the partition board, and the transmission shaft is rotatably connected with the machine body.

One end of the transmission shaft, which is far away from the second gear, is provided with a cutter head mechanism, and the cutter head mechanism comprises a sleeve, a cutter holder and four dividing cutters;

one end of the sleeve is fixedly connected with one end, far away from the second gear, of the transmission shaft, the cutter holder is fixedly connected with the outer surface of the other end of the sleeve, the four dividing cutters are symmetrically installed on the cutter holder respectively, and the dividing cutters are rotatably connected with the cutter holder.

The outer surface of the sleeve is provided with an adjusting mechanism, and the adjusting mechanism comprises an outer sleeve, a rotating ring, an inner sleeve, four first support blocks, four connecting rods and four second support blocks;

the one end of outer tube rotates the nestification and is in sheathed tube surface ditch inslot, the internal surface of outer tube is provided with the screw thread, the one end surface of outer tube with swivel becket fixed connection, interior sleeve pipe is located the sleeve pipe with between the outer tube, interior sleeve pipe with sheathed tube surface sliding connection, interior sleeve pipe is close to the one end surface of outer tube is provided with the screw thread, the outer tube with interior sleeve pipe threaded connection, four first piece symmetry respectively sets up interior sleeve pipe is kept away from the one end surface of outer tube, first piece with interior sleeve pipe fixed connection, four the second piece is fixed respectively four the surface of cut apart sword, the both ends of connecting rod respectively with first piece with the second piece is rotated and is connected.

The planar shapes of the four dividing knives are triangular, and threads arranged on the outer sleeve and the inner sleeve are fine threads.

The dividing knife, the sleeve, the inner sleeve, the outer sleeve and the machine body are all made of stainless steel.

The utility model discloses following beneficial effect has:

this trepan that bone surgery used, through the adjustment mechanism who sets up, the swivel becket rotates, the swivel becket drives the outer tube and rotates together for outer tube female connection's interior sleeve pipe slides along sheathed tube outer wall, the removal of the first piece pulling connecting rod of interior sleeve pipe surface fixation simultaneously, the connecting rod drives second piece and cuts apart a sword 6 and takes place to deflect around the blade holder, can change the angle of cutting apart the sword, the adjustment is convenient, need not to change different trepans, the effectual operating time of having practiced thrift, doctor's work efficiency has been improved.

Drawings

FIG. 1 is a sectional perspective view of the present invention;

FIG. 2 is a perspective view of the present invention;

fig. 3 is a cross-sectional view of the adjustment mechanism of the present invention;

fig. 4 is an enlarged view of a in fig. 2 according to the present invention.

Illustration of the drawings: 1. a body; 2. a switch; 31. a motor; 32. a first gear; 33. a second gear; 4. a partition plate; 5. a drive shaft; 61. a sleeve; 62. a tool apron; 63. a dividing knife; 71. an outer sleeve; 72. a rotating ring; 73. an inner sleeve; 74. a first support block; 75. a connecting rod; 76. and a second supporting block.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.

As shown in fig. 1-2, the trepan for orthopedic surgery of the present embodiment includes a machine body 1, a switch 2 is disposed on one side of a top surface of the machine body 1, a driving mechanism is disposed in an inner cavity of the machine body 1, and the driving mechanism includes a motor 31, a first gear 32 and a second gear 33;

the motor 31 is fixed on one side of the inner wall of the machine body 1, the output shaft of the motor 31 is fixedly connected with the first gear 32, the second gear 33 is positioned in the middle of the inner cavity of the machine body 1, the second gear 33 is meshed with the first gear 32, and the driving mechanism provides power for the cutter head mechanism to replace manual cutting of a doctor.

As shown in fig. 1-2, a partition plate 4 is disposed on one side of the second gear 33 away from the motor 31, the partition plate 4 is fixedly connected to the inner wall of the machine body 1, a transmission shaft 5 is disposed at the center of the second gear 33, one end of the transmission shaft 5 is fixedly connected to the second gear 33, the other end of the transmission shaft 5 penetrates through the partition plate 4 and the inner wall of the machine body 1, the transmission shaft 5 is rotatably connected to the partition plate 4, the transmission shaft 5 is rotatably connected to the machine body 1, and the transmission shaft 5 transmits power to the cutter head mechanism and provides support.

As shown in fig. 1-3, the end of the transmission shaft 5 away from the second gear 33 is provided with a cutter head mechanism, which comprises a sleeve 61, a cutter holder 62 and four dividing cutters 63;

one end of the sleeve 61 is fixedly connected with one end of the transmission shaft 5 far away from the second gear 33, the tool apron 62 is fixedly connected with the outer surface of the other end of the sleeve 61, the four dividing tools 63 are symmetrically installed on the tool apron 62 respectively, and the dividing tools 63 are rotatably connected with the tool apron 62, so that the dividing tools 63 can be conveniently rotated and adjusted in angle along the tool apron 62.

As shown in fig. 1-4, the outer surface of the sleeve 61 is provided with an adjusting mechanism, which includes an outer sleeve 71, a rotating ring 72, an inner sleeve 73, four first supporting blocks 74, four connecting rods 75 and four second supporting blocks 76;

one end of the outer sleeve 71 is rotatably nested in a groove on the outer surface of the sleeve 61, threads are arranged on the inner surface of the outer sleeve 71, the outer surface of one end of the outer sleeve 71 is fixedly connected with the rotating ring 72, the inner sleeve 73 is positioned between the sleeve 61 and the outer sleeve 71, the inner sleeve 73 is slidably connected with the outer surface of the sleeve 61, threads are arranged on the outer surface of one end of the inner sleeve close to the outer sleeve 71, the outer sleeve 71 is in threaded connection with the inner sleeve 73, the four first supporting blocks 74 are respectively and symmetrically arranged on the outer surface of one end of the inner sleeve 73 far away from the outer sleeve 71, the first supporting blocks 74 are fixedly connected with the inner sleeve 73, the four second supporting blocks 76 are respectively fixed on the outer surfaces of the four dividing knives 63, and two ends of the connecting rod 75 are respectively and rotatably connected with the first supporting blocks 74 and the second supporting blocks 76, so that the angles of the dividing knives 63 can be conveniently adjusted by rotating the rotating ring 72.

As shown in fig. 1 to 3, the four parting blades 63 have a triangular planar shape, and the threads provided on the outer sleeve 71 and the inner sleeve 73 are fine threads that are self-locking to prevent play.

As shown in fig. 1-3, the cutting knife 63, the sleeve 61, the inner sleeve 73, the outer sleeve 71 and the machine body 1 are made of stainless steel, which is convenient for cleaning and disinfection.

The utility model discloses a theory of operation and application method:

when the trepan for orthopedic surgery is used, the switch 2 is turned on, the motor 31 is started, the motor 31 drives the second gear 33 to rotate through the first gear 32 which is fixedly connected, the second gear 33 drives the sleeve 61 and the cutter holder 62 to rotate through the transmission shaft 5, the dividing cutter 63 on the cutter holder 62 also rotates, and a doctor can cut off bones at the intervertebral disc of a patient by holding the outer wall of the machine body 1.

When the cutting angle needs to be adjusted, the switch 2 is firstly closed, the cutter head mechanism stops rotating, the rotating ring 72 is rotated, the rotating ring 72 drives the outer sleeve 71 to rotate together, so that the inner sleeve 73 connected with the inner thread of the outer sleeve 71 slides along the outer wall of the sleeve 61, meanwhile, the first support block 74 fixed on the outer surface of the inner sleeve 73 pulls the connecting rod 75 to move, the connecting rod 75 drives the second support block 76 and the dividing knife 63 to deflect around the knife holder 62, the angle of the dividing knife 63 can be changed, the adjustment is convenient, different trepans do not need to be replaced, the operation time is effectively saved, and the working efficiency of doctors is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A trepan for orthopedic surgery comprises a body (1) and is characterized in that: a switch (2) is arranged on one side of the top surface of the machine body (1), a driving mechanism is arranged in an inner cavity of the machine body (1), and the driving mechanism comprises a motor (31), a first gear (32) and a second gear (33);

the motor (31) is fixed on one side of the inner wall of the machine body (1), an output shaft of the motor (31) is fixedly connected with the first gear (32), the second gear (33) is located in the middle of the inner cavity of the machine body (1), and the second gear (33) is meshed with the first gear (32).

2. The trepan for orthopedic surgery according to claim 1, characterized in that: keep away from second gear (33) one side of motor (31) is provided with baffle (4), baffle (4) with the inner wall fixed connection of organism (1), the center of second gear (33) is provided with transmission shaft (5), the one end of transmission shaft (5) with second gear (33) fixed connection, the other end of transmission shaft (5) runs through respectively baffle (4) with the inner wall of organism (1), transmission shaft (5) with baffle (4) rotate to be connected, transmission shaft (5) with organism (1) rotates to be connected.

3. The trepan for orthopedic surgery according to claim 2, characterized in that: a cutter head mechanism is arranged at one end, far away from the second gear (33), of the transmission shaft (5), and comprises a sleeve (61), a cutter seat (62) and four dividing cutters (63);

one end of the sleeve (61) is fixedly connected with one end, far away from the second gear (33), of the transmission shaft (5), the cutter seat (62) is fixedly connected with the outer surface of the other end of the sleeve (61), the four dividing cutters (63) are symmetrically arranged on the cutter seat (62) respectively, and the dividing cutters (63) are rotatably connected with the cutter seat (62).

4. The trepan for orthopedic surgery according to claim 3, characterized in that: the outer surface of the sleeve (61) is provided with an adjusting mechanism, and the adjusting mechanism comprises an outer sleeve (71), a rotating ring (72), an inner sleeve (73), four first supporting blocks (74), four connecting rods (75) and four second supporting blocks (76);

one end of the outer sleeve (71) is rotatably nested in a groove on the outer surface of the sleeve (61), threads are arranged on the inner surface of the outer sleeve (71), the outer surface of one end of the outer sleeve (71) is fixedly connected with the rotating ring (72), the inner sleeve (73) is positioned between the sleeve (61) and the outer sleeve (71), the inner sleeve (73) is in sliding connection with the outer surface of the sleeve (61), threads are arranged on the outer surface of one end, close to the outer sleeve (71), of the inner sleeve, the outer sleeve (71) is in threaded connection with the inner sleeve (73), the four first support blocks (74) are respectively and symmetrically arranged on the outer surface of one end, far away from the outer sleeve (71), of the inner sleeve (73), the first support blocks (74) are fixedly connected with the inner sleeve (73), and the four second support blocks (76) are respectively fixed on the outer surfaces of the four dividing knives (63), two ends of the connecting rod (75) are respectively connected with the first supporting block (74) and the second supporting block (76) in a rotating mode.

5. The trepan for orthopedic surgery according to claim 4, characterized in that: the plane shapes of the four dividing knives (63) are triangular, and threads arranged on the outer sleeve (71) and the inner sleeve (73) are fine threads.

6. The trepan for orthopedic surgery according to claim 5, characterized in that: the dividing knife (63), the sleeve (61), the inner sleeve (73), the outer sleeve (71) and the machine body (1) are all made of stainless steel.