CN216148230U

CN216148230U - Auxiliary device is fixed to ulna

Info

Publication number: CN216148230U
Application number: CN202122278743.3U
Authority: CN
Inventors: 郭雷
Original assignee: Guangdong Vocational and Technical College
Current assignee: Guangdong Vocational and Technical College
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-04-01
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an ulna fixing auxiliary device, which comprises: a traction plate; the first fixing piece and the second fixing piece are oppositely arranged on the traction plate, the first fixing piece is connected with the traction plate in a sliding mode, the first fixing piece is provided with a first fixing end used for being fixedly connected with an ulna, and the second fixing piece is provided with a second fixing end used for being fixedly connected with the ulna; the traction mechanism is arranged on the traction plate and is in transmission connection with the first fixing piece so as to drive the first fixing piece to move relatively towards the second fixing piece, and the connecting direction of the first fixing end and the second fixing end is the same as the moving direction of the first fixing piece and the second fixing piece. Can fix the position of the ulna in advance, and more accurately position the cut ulna, and is more favorable for the treatment of patients.

Description

Auxiliary device is fixed to ulna

Technical Field

The utility model relates to the field of medical auxiliary equipment, in particular to an ulna fixing auxiliary device.

Background

Ulna impact syndrome refers to ischemic necrosis of the ulnar side part of the lunate bone caused by impact between the ulnar head and the ulnar styloid process and the lunate bone and the triquetrum and the long-term compression, and if the positive variation of the ulnar bone is larger (more than 2mm), the compression of the ulnar styloid process can also cause the ischemic necrosis of the triquetrum. Medically, for the positive variation of ulna, the osteotomy method is often adopted for treatment, but after the osteotomy, the medical staff often manually pushes the osteotomy ulna, and then the ulna is fixed through the steel plate, so that the ulna is easy to move, and the treatment of the patient is not facilitated.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides an ulna fixing auxiliary device which can pre-fix the position of an ulna, can more accurately position the cut ulna and is more beneficial to treatment of a patient.

The technical scheme adopted by the embodiment of the utility model is as follows: an ulna fixation assistance device comprising: a traction plate; the first fixing piece and the second fixing piece are oppositely arranged on the traction plate, the first fixing piece is connected with the traction plate in a sliding mode, the first fixing piece is provided with a first fixing end used for being fixedly connected with an ulna, and the second fixing piece is provided with a second fixing end used for being fixedly connected with the ulna; the traction mechanism is arranged on the traction plate and is in transmission connection with the first fixing piece so as to drive the first fixing piece to move relatively towards the second fixing piece, and the connecting direction of the first fixing end and the second fixing end is the same as the moving direction of the first fixing piece and the second fixing piece.

The ulna fixing auxiliary device provided by the embodiment of the utility model has at least the following beneficial effects:

1. the first fixing piece and the second fixing piece are fixed on the ulna, the osteotomy position of the ulna is located between the first fixing piece and the second fixing piece, the traction plate is arranged on the first fixing piece and the second fixing piece, and the ulna is fixed through the first fixing piece, the second fixing piece and the traction plate, so that the relative position of the ulna is determined, and a doctor can conveniently perform osteotomy;

2. after the ulna is cut the bone, through the fixed ulna of first mounting of traction mechanism pulling, move towards the fixed ulna of second mounting, finally realize the laminating of ulna department of cutting the bone because there is the fixed of traction plate in this in-process for the ulna is difficult for taking place to rotate or misplace, more is favorable to patient's recovery.

According to some embodiments of the utility model, the first fixing end is provided with a first through hole, the second fixing end is provided with a second through hole, and the central axes of the first through hole and the second through hole are perpendicular to the traction plate and are fixed on the bone through screws.

According to some embodiments of the present invention, the first fixing member and the second fixing member are both "L" shaped, and include a first turning portion and a second turning portion, the first through hole and the second through hole are both disposed on the first turning portion, and the second turning portion is slidably connected to the traction plate.

According to some embodiments of the present invention, the traction mechanism includes a rack, a gear and a rotating rod, the second fixing element is fixedly connected to the traction plate, the first fixing element is fixedly disposed on the rack, the rack is slidably disposed on the traction plate, the first fixing element is slidably connected to the traction plate through the rack, a connecting line between the rack and the first fixing element is in a same direction as a connecting line between the rack and the second fixing element, the rack is in transmission connection with the gear, and the rotating rod is disposed at a center of the gear and in transmission connection with the gear to drive the gear to rotate.

According to some embodiments of the present invention, the second fixing element is also slidably connected to the traction plate, and the traction mechanism is drivingly connected to the second fixing element to drive the first fixing element and the second fixing element to move toward or away from each other.

According to some embodiments of the present invention, the traction mechanism includes two racks, a gear and a rotating rod, the racks are slidably connected to the traction plate and are disposed in the same direction as the connecting line of the first fixing element and the second fixing element, one of the racks is fixedly connected to the first fixing element, the other of the racks is fixedly connected to the second fixing element, the tooth surfaces of the two racks are disposed opposite to each other, the gear is disposed between the two racks and is in transmission connection with the two racks, and the rotating rod is disposed in the center of the gear and is in transmission connection with the gear to drive the gear to rotate.

According to some embodiments of the utility model, further comprising a clamping mechanism for clamping the pulling mechanism.

According to some embodiments of the utility model, the clamping mechanism comprises a threaded hole and a thread, the threaded hole is arranged on the traction plate, the central axis of the threaded hole is collinear with the central axis of the gear, the thread is convexly arranged on the rotating rod, the thread is arranged close to the threaded hole, the thread can be driven to be screwed into the threaded hole by pressing the rotating rod downwards, and the screwing direction of the thread is consistent with the moving direction of the gear driving the first fixing piece to the second fixing piece.

According to some embodiments of the utility model, the clamping mechanism further comprises a fastening mechanism comprising a fastening plate disposed on the rotating rod perpendicular to the central axis of the rotating rod and an elastic member disposed between the fastening plate and the traction plate.

According to some embodiments of the utility model, the lever is provided with a handle at one end thereof, the handle being arranged perpendicular to the lever.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an ulnar fixation assistance device in accordance with an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an ulnar fixation assistance device in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a top view of an ulnar fixation assistance device in accordance with an embodiment of the present invention;

FIG. 5 is a top sectional view of an ulnar fixation assistance device in accordance with an embodiment of the present invention.

Reference numerals: 100-a traction plate; 200-a first fixture; 210-a first via; 300-a second fixture; 310-a second via; 400-a traction mechanism; 410-a rack; 420-a gear; 430-rotating rod; 431-a handle; 500-a clamping mechanism; 510-a threaded hole; 520-screw thread; 530-a fastening mechanism; 531-fastening plate; 532-elastic member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 5, in some embodiments of the present invention, an ulnar fixation assistance device includes:

a traction plate 100;

the first fixing member 200 and the second fixing member 300 are oppositely arranged on the traction plate 100, the first fixing member 200 is slidably connected with the traction plate 100, the first fixing member 200 is provided with a first fixing end for fixedly connecting with the ulna, and the second fixing member 300 is provided with a second fixing end for fixedly connecting with the ulna;

the traction mechanism 400 is disposed on the traction plate 100, and is in transmission connection with the first fixing member 200 to drive the first fixing member 200 to move relatively toward the second fixing member 300, and a connection direction of the first fixing member and the second fixing member is the same as a moving direction of the first fixing member 200 and the second fixing member 300.

When in osteotomy, the position needing osteotomy is fixed through the ulna fixing auxiliary device, and then the osteotomy position is subjected to osteotomy; after the osteotomy, the osteotomy is jointed by the aid of the ulna fixing auxiliary device, so that the jointing is more compact.

Specifically, the first fixing member 200 and the second fixing member 300 are fixed to the ulna, the osteotomy of the ulna is located between the first fixing member 200 and the second fixing member 300, the traction plate 100 is disposed on the first fixing member 200 and the second fixing member 300, and the ulna is fixed by the first fixing member 200, the second fixing member 300 and the traction plate 100, so that the relative position of the ulna is determined, and a doctor can conveniently perform osteotomy; after the ulna is cut, the traction mechanism 400 pulls the ulna fixed by the first fixing part 200 to move towards the ulna fixed by the second fixing part 300, and finally the ulna cut part is attached, so that the ulna is not easy to rotate or dislocate due to the fixation of the traction plate 100 in the process, and the recovery of a patient is facilitated.

Referring to fig. 1, in some embodiments of the present invention, the first fixing end is provided with a first through hole 210, the second fixing end is provided with a second through hole 310, and the central axes of the first through hole 210 and the second through hole 310 are disposed perpendicular to the traction plate 100 and are fixed to the bone by screws.

Specifically, the first through hole 210 and the second through hole 310 are locked on the ulna by screws to fix the first fixing end and the second fixing end on the ulna, so that the fixation of the ulna fixation auxiliary device is realized, and the subsequent operation is more convenient.

Referring to fig. 1, in some embodiments of the present invention, the first fixing element 200 and the second fixing element 300 are both "L" shaped, and include a first turning portion and a second turning portion, the first through hole 210 and the second through hole 310 are both disposed on the first turning portion, and the second turning portion is slidably connected to the traction plate 100.

Specifically, through the first fixing part 200 and the second fixing part 300 of "L" type for traction plate 100 does not with ulna direct contact, and leaves great space between the two, when cutting the bone, the doctor can cut the bone through this space, more conveniently cuts the operation of bone, and need not to cut more muscle tissue and can realize cutting the bone, and it is practical more convenient, and more be favorable to patient's recovery.

Referring to fig. 4 and 5, in some embodiments of the present invention, the traction mechanism 400 includes a rack 410, a gear 420, and a rotating rod 430, the second fastener 300 is fixedly connected to the traction plate 100, the first fastener 200 is fixedly disposed on the rack 410, the rack 410 is slidably disposed on the traction plate 100, the first fastener 200 is slidably connected to the traction plate 100 through the rack 410, the rack 410 is disposed in the same direction as the connecting line between the first fastener 200 and the second fastener 300, the rack 410 is drivingly connected to the gear 420, and the rotating rod 430 is disposed at the center of the gear 420 and drivingly connected to the gear 420, so as to drive the gear 420 to rotate.

Specifically, after the osteotomy is completed, the doctor drives the gear 420 to rotate by rotating the rotating rod 430, so that the rack 410 and the first fixing member 200 connected with the rack 410 rotate, and the first fixing member 200 moves towards the second fixing member 300, so that the ulna at the osteotomy position is mutually attached, and the osteotomy treatment effect is achieved.

Referring to fig. 4 and 5, in some embodiments of the present invention, the second fastener 300 is also slidably connected to the traction plate 100, and the traction mechanism 400 is drivingly connected to the second fastener 300 to drive the first fastener 200 and the second fastener 300 to move toward each other or away from each other.

Specifically, the second fixing member 300 can also be slidably connected to the traction plate 100, and the first fixing member 200 and the second fixing member 300 can move towards or away from each other by being in transmission connection with the traction mechanism 400.

Referring to fig. 4 and 5, in some embodiments of the present invention, the traction mechanism 400 includes two racks 410, a gear 420 and a rotating rod 430, the rack 410 is slidably connected to the traction plate 100 and is disposed in the same direction as the connection line of the first fixing element 200 and the second fixing element 300, one rack 410 is fixedly connected to the first fixing element 200, the other rack 410 is fixedly connected to the second fixing element 300, the tooth surfaces of the two racks 410 are disposed opposite to each other, the gear 420 is disposed between the two racks 410 and is in transmission connection with the two racks 410, and the rotating rod 430 is disposed in the center of the gear 420 and is in transmission connection with the gear 420 to drive the gear 420 to rotate.

Specifically, the first fixing member 200 and the second fixing member 300 are respectively connected with the gear 420 through the rack 410 in a transmission manner, so that the first fixing member 200 and the second fixing member 300 can move in the opposite direction or in the opposite direction.

In addition, the first fixing member 200 and the second fixing member 300 are provided with sliding grooves, the traction plate 100 is provided with sliding rails corresponding to the sliding grooves, and the first fixing member 200 and the second fixing member 300 realize relative sliding on the traction plate 100 through the matching of the sliding grooves and the sliding grooves.

Referring to fig. 2, 3 and 5, in some embodiments of the utility model, a chucking mechanism 500 is further included, and the chucking mechanism 500 is used to chuck the traction mechanism 400.

Specifically, set up chucking mechanism 500, when the ulna after cutting the bone was laminated each other, lock drive mechanism 400 through chucking mechanism 500 for the ulna can keep the laminating state always, can not break away from because of the pulling force of human ulna itself, and more makes things convenient for the doctor to carry out the steel sheet to the ulna after the laminating and fixes, and it is more convenient to use.

Referring to fig. 2, 3, 4 and 5, in some embodiments of the present invention, the clamping mechanism 500 includes a threaded hole 510 and a thread 520, the threaded hole 510 is disposed on the traction plate 100, a central axis of the threaded hole 510 is collinear with a central axis of the gear 420, the thread 520 is convexly disposed on the rotating rod 430, and the thread 520 is disposed adjacent to the threaded hole 510, and the thread 520 can be driven to be screwed into the threaded hole 510 by pressing the rotating rod 430 downwards, and the screwing direction of the thread 520 is identical to a moving direction of the gear 420 driving the first fixing element 200 toward the second fixing element 300.

Specifically, carry out the chucking through the self-locking power of screw thread 520 with screw hole 510, use the in-process of laminating, doctor stall rotation rotary rod 430 can realize the chucking, and need not additionally to carry out the chucking operation, more is favorable to doctor's use, and it is more convenient to use.

Referring to fig. 1 and 3, in some embodiments of the present invention, the clamping mechanism 500 further includes a fastening mechanism 530, the fastening mechanism 530 includes a fastening plate 531 and an elastic member 532, the fastening plate 531 is disposed on the rotating rod 430, perpendicular to the central axis of the rotating rod 430, and the elastic member 532 is disposed between the fastening plate 531 and the traction plate 100.

Specifically, when in use, the medical staff applies a certain pressure to the rotating rod 430, the elastic member 532 will be compressed, so that the screw thread 520 is screwed into the threaded hole 510, and when the medical staff removes the applied pressure or pulling force, the elastic member 532 will press against the fastening plate 531, so as to apply a certain pressure to the screw thread 520, so that the screw thread 520 is locked in the threaded hole 510, and the clamping mechanism 500 can realize clamping more reliably. In this embodiment, the elastic member 532 is a spring.

Referring to fig. 1, in some embodiments of the present invention, a handle 431 is provided at one end of the rotating rod 430, and the handle 431 is disposed perpendicular to the rotating rod 430. Through the handle 431, the doctor can more conveniently rotate the rotating rod 430, and the use is more convenient.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. An ulnar fixation assistance device, comprising:

a traction plate (100);

the fixing device comprises a first fixing piece (200) and a second fixing piece (300), wherein the first fixing piece (200) and the second fixing piece (300) are oppositely arranged on the traction plate (100), the first fixing piece (200) is connected with the traction plate (100) in a sliding mode, the first fixing piece (200) is provided with a first fixing end used for being fixedly connected with an ulna, and the second fixing piece (300) is provided with a second fixing end used for being fixedly connected with the ulna;

the traction mechanism (400) is arranged on the traction plate (100) and is in transmission connection with the first fixing piece (200) so as to drive the first fixing piece (200) to move relatively towards the second fixing piece (300), and the connection direction of the first fixing piece and the second fixing piece is the same as the movement direction of the first fixing piece (200) and the second fixing piece (300).

2. The ulnar fixation assistance device of claim 1 wherein: the first fixing end is provided with a first through hole (210), the second fixing end is provided with a second through hole (310), and the central shafts of the first through hole (210) and the second through hole (310) are perpendicular to the traction plate (100) and fixed on bones through screws.

3. The ulnar fixation assistance device of claim 2 wherein: the first fixing piece (200) and the second fixing piece (300) are L-shaped and comprise a first turning portion and a second turning portion, the first through hole (210) and the second through hole (310) are arranged on the first turning portion, and the second turning portion is connected with the traction plate (100) in a sliding mode.

4. The ulnar fixation assistance device of claim 1 wherein: the traction mechanism (400) comprises a rack (410), a gear (420) and a rotary rod (430), the second fixing piece (300) is fixedly connected with the traction plate (100), the first fixing piece (200) is fixedly arranged on the rack (410), the rack (410) is slidably arranged on the traction plate (100), the first fixing piece (200) is connected with the traction plate (100) in a sliding mode through the rack (410), the rack (410) is arranged in the same direction as the connecting line of the first fixing piece (200) and the second fixing piece (300), the rack (410) is connected with the gear (420) in a transmission mode, and the rotary rod (430) is arranged in the center of the gear (420) and is connected with the gear (420) in a transmission mode to drive the gear (420) to rotate.

5. The ulnar fixation assistance device of claim 1 wherein: the second fixing piece (300) is connected with the traction plate (100) in a sliding mode, and the traction mechanism (400) is connected with the second fixing piece (300) in a transmission mode so as to drive the first fixing piece (200) and the second fixing piece (300) to move towards or away from each other.

6. The ulnar fixation assistance device of claim 5 wherein: the traction mechanism (400) comprises two racks (410), a gear (420) and a rotating rod (430), wherein the two racks (410) are connected with the traction plate (100) in a sliding mode and arranged in the same direction of a connecting line of the first fixing piece (200) and the second fixing piece (300), the rack (410) is fixedly connected with the first fixing piece (200), the other rack (410) is fixedly connected with the second fixing piece (300), tooth surfaces of the two racks (410) are arranged oppositely, the gear (420) is arranged between the two racks (410) and is in transmission connection with the two racks (410), and the rotating rod (430) is arranged in the center of the gear (420) and is in transmission connection with the gear (420) to drive the gear (420) to rotate.

7. The ulnar fixation assistance device of claim 4 or 6 wherein: the traction mechanism is characterized by further comprising a clamping mechanism (500), wherein the clamping mechanism (500) is used for clamping the traction mechanism (400).

8. The ulnar fixation assistance device of claim 7 wherein: the clamping mechanism (500) comprises a threaded hole (510) and a thread (520), the threaded hole (510) is formed in the traction plate (100), the central axis of the threaded hole (510) is collinear with the central axis of the gear (420), the thread (520) is convexly arranged on the rotary rod (430), the thread (520) is arranged close to the threaded hole (510), the rotary rod (430) can be pressed downwards through pressing, the thread (520) is screwed into the threaded hole (510), and the screwing direction of the thread (520) is consistent with the moving direction of the gear (420) driving the first fixing piece (200) to face the second fixing piece (300).

9. The ulnar fixation assistance device of claim 8 wherein: the clamping mechanism (500) further comprises a fastening mechanism (530), the fastening mechanism (530) comprises a fastening plate (531) and an elastic piece (532), the fastening plate (531) is arranged on the rotating rod (430) and is perpendicular to the central shaft of the rotating rod (430), and the elastic piece (532) is arranged between the fastening plate (531) and the traction plate (100).

10. The ulnar fixation assistance device of claim 8 wherein: one end of the rotating rod (430) is provided with a handle (431), and the handle (431) is perpendicular to the rotating rod (430).