CN216439292U

CN216439292U - Adjustable traction bow

Info

Publication number: CN216439292U
Application number: CN202121276204.XU
Authority: CN
Inventors: 赵林芝; 金博; 金秀志
Original assignee: Shanghai Sixth Peoples Hospital
Current assignee: Shanghai Sixth Peoples Hospital
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-05-06
Anticipated expiration: 2031-06-08

Abstract

The utility model provides an adjustable traction bow which comprises a first traction piece, a second traction piece and a fixing piece, wherein one end of the first traction piece is provided with a connecting hole, and the other end of the first traction piece extends to a first extending part towards the direction close to the second traction piece; one end of the second traction piece is provided with a connecting hole, the other end of the second traction piece extends to a direction close to the first traction piece to form a second extension part, a connecting groove is formed in the position, close to the first traction piece, of the second extension part, and the first extension part is fixed through a fixing piece after being inserted into the connecting groove. The adjustable traction bow provided by the utility model does not need to be pulled open by medical staff forcibly when in use, can be operated stably and quickly, avoids pain of a patient and displacement of a needle eye, achieves the purpose of traction, eliminates the pain of the patient, and increases the comfort level and satisfaction degree of the patient.

Description

Adjustable traction bow

Technical Field

The utility model relates to the field of medical instruments, in particular to an adjustable traction bow.

Background

Bone traction is common in lower limb fracture, and is a common treatment method for orthopedics department, wherein the bone traction is based on a mechanical principle and utilizes the functions of continuous traction force and counter traction force to reset and maintain the reset of fracture. In addition, the bone traction can also provide good fixing, supporting and detumescence effects for the affected limb of the patient. The real effective fracture reduction device not only can reduce the fracture, but also can prevent the fracture from causing secondary damage to blood vessels and nerves.

The traction bow is a fracture reduction device which is widely used, the common traction bow is of a U-shaped structure, as shown in figure 1, when a stewart needle passes through an affected limb of a patient during bone traction puncture, two ends of the stewart needle are respectively connected with two ends of a U-shaped opening of the traction bow, the bottom end of the traction bow, which is far away from the U-shaped opening, is connected with a traction rope, and the traction bow is not adjustable. In a specific assembling and disassembling operation process, after one side of the traction bow is connected, medical staff needs to pull the other side of the traction bow to be connected with the other end of the Sterling needle with force, the Sterling needle is easy to shake when the traction bow is pulled with force, and pain and possibility of needle eye displacement are brought to a patient. Meanwhile, medical staff cannot operate quickly and conveniently.

Therefore, it is an urgent technical problem to provide a traction bow to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the adjustable traction bow, which can be stably and quickly operated without forcibly pulling the bow by medical staff when in use, and simultaneously avoids the pain of a patient and the shift of a needle eye, thereby achieving the purpose of traction.

The utility model adopts the following technical scheme for solving the technical problems:

an adjustable traction bow comprises a first traction piece, a second traction piece and a fixing piece, wherein one end of the first traction piece is provided with a connecting hole, and the other end of the first traction piece extends to a first extending part towards the direction close to the second traction piece; one end of the second traction piece is provided with a connecting hole, the other end of the second traction piece extends to a direction close to the first traction piece to form a second extending portion, a connecting groove is formed in the position, close to the first traction piece, of the second extending portion, and the first extending portion is inserted into the connecting groove and then fixed through the fixing piece.

Preferably, the first traction member and the second traction member are rectangular in cross section.

Furthermore, groove walls extend from two sides of the second extending part of the second traction part close to the first traction part, and the groove walls and the second extending part enclose the connecting groove.

Preferably, the fixing member is an eye screw.

Furthermore, the second extending part is provided with a first screw hole, and the lifting ring screw is connected with the first screw hole in a threaded fit manner; after the first extending part is inserted into the connecting groove, the lifting ring screw is rotated to fix the first extending part and the second extending part.

Preferably, a connecting pipe extends from the orifice of the connecting hole along one side far away from the connecting hole, a second screw hole is formed in the pipe wall of the connecting pipe, and a fixing screw is in threaded fit connection with the second screw hole.

Preferably, the hole of the connecting hole on the first traction piece extends out of the first connecting pipe in the direction away from the second traction piece; the hole opening of the connecting hole on the second traction piece extends out of a second connecting pipe along the direction far away from the first traction piece.

Preferably, a connecting pipe is fixed in the connecting hole, a second screw hole is formed in the pipe wall of the connecting pipe, and a fixing screw is in threaded fit connection with the second screw hole.

Preferably, the first traction piece and the first extension part are in circular arc transition; the second traction piece and the second extension part are in circular arc transition.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:

the adjustable traction bow for the patient with bone traction provided by the utility model has the advantages that through the separated design of the first traction piece, the second traction piece and the fixing piece, the size of the U-shaped opening can be adjusted through the connecting groove, and the operation of medical staff is facilitated. When in use, the medical staff is not required to pull open by force, the operation can be stable and fast, the pain of the patient and the shift of the needle eye are avoided, the traction purpose is achieved, the pain of the patient is eliminated, and the comfort level and the satisfaction degree of the patient are increased.

Drawings

FIG. 1 is a schematic view of a prior art traction bow configuration;

FIG. 2 is a front view of the adjustable traction bow of the present invention;

FIG. 3 is a top view of the adjustable traction bow of the present invention;

FIG. 4 is a left side view of the adjustable traction bow of the present invention;

FIG. 5 is a right side view of the adjustable traction bow of the present invention;

fig. 6 is a schematic view of the use of the traction bow of the present invention.

The reference numerals denote the description:

1-a first traction part, 2-a second traction part, 3-a fixed part, 4-a connecting hole, 5-a first extension part, 6-a second extension part, 7-a connecting groove, 8-a connecting pipe, 81-a first connecting pipe and 82-a second connecting pipe.

Detailed Description

The technical scheme of the utility model is further explained in detail by combining the attached drawings.

Referring to fig. 2-6, the present embodiment provides an adjustable traction bow, which includes a first traction member 1, a second traction member 2 and a fixing member 3.

Pull the bow split through the U type that will have now and be first pull 1 and the second and pull 2 at this structure, both through the technical means of 3 fixed connection of mounting, realize adjusting the technical purpose of the size of U type mouth through mounting 3, medical staff can pull the first piece 1 of pulling of bow with the adjustable and connect in stewart's needle back in concrete operation, the second pulls 2 and passes through the draw-in groove mode of sliding and enlarge the U word mouth, is connected with the other end of stewart's needle again, labour saving and time saving.

Specifically, the first traction member 1 is an elongated plate-shaped structure, one end of the first traction member 1 is provided with a connecting hole 4 for the fixed connection of a schanz pin, and the other end of the first traction member 1 extends to a first extending part 5 towards the direction close to the second traction member 2.

Specifically, as shown in fig. 6, the second pulling member 2 is also of a slender plate-like structure, one end of the second pulling member 2 is provided with a connecting hole 4 for fixing the schlempe pin, the other end of the second pulling member 2 extends to a second extending portion 6 in a direction close to the first pulling member 1, a connecting groove 7 is arranged at a position of the second extending portion 6 close to the first pulling member 1, and the first extending portion 5 is fixed by the fixing member 3 after being inserted into the connecting groove 7.

In a preferred embodiment, groove walls extend from both sides (both sides of the thickness of the plate-like structure) of the second extending portion 6 near the first traction member 1, and preferably, the cross section of the groove walls is L-shaped or concave; the groove walls and the second extension 6 enclose a connecting groove 7, the first extension 5 being inserted into the connecting groove 7 and axially slidable in the connecting groove 7, the first extension 5 and the second extension 6 being fixed in a suitable relative position by the fixture 3.

In a specific embodiment, as shown in fig. 2-6, the fixing element 3 is a bail screw, which is used for connection to a hauling cable. Furthermore, a first screw hole is formed in the second extending portion 6 corresponding to the connecting groove 7, and a lifting ring screw is connected with the first screw hole in a threaded fit manner; after the first extension part 5 is inserted into the connecting groove 7, the position is adjusted properly, and the lifting eye screw is rotated to strengthen the fixation of the first extension part 5 and the second extension part 6.

In another embodiment, the second extension 6 of the coupling slot 7 is provided with a lifting ring.

In a specific embodiment, the opening of the connecting hole 4 extends out of a connecting pipe 8 along a side far away from the connecting hole 4, a second screw hole is arranged on the pipe wall of the connecting pipe 8, a fixing screw is connected with the second screw hole in a threaded fit mode, and after the Steiner is inserted into the connecting pipe 8, the fixing screw is screwed down to fix the relative position of the connecting pipe 8 and the Steiner.

Further, the orifice of the connecting hole 4 on the first traction piece 1 extends out of the first connecting pipe 81 in a direction away from the second traction piece 2; the orifice of the connection bore 4 in the second pulling element 2 extends out of the second connection pipe 82 in a direction away from the first pulling element 1. I.e. the connecting tube 8 is located outside the U-shaped pulling member and is integrally formed with the first pulling member 1 and the second pulling member 2, respectively.

In another embodiment, a connecting pipe 8 is fixed in the connecting hole 4, a second screw hole is formed on the pipe wall of the connecting pipe 8, and a fixing screw is in threaded fit connection with the second screw hole. That is, the connecting pipe 8 is not integrally formed with the first traction element 1 and the second traction element 2; further, the outer surface of the connecting pipe 8 is provided with a clamping groove which is clamped in the connecting hole 4.

In one embodiment, the first traction element 1 is in circular arc transition with the first extension 5; the second traction element 2 is in circular arc transition with the second extension 6.

The working principle of the adjustable traction bow is as follows:

step S0, initial state: the first extension part 5 of the first traction part 1 is inserted into the connecting groove 7 of the second traction part 2, and the lifting ring screw is in threaded fit connection with the first screw hole, so that the sliding of the first traction part 1 and the second traction part 2 cannot be influenced;

step S1, the patient of bone traction treatment applies traction arch: after the medical staff connects the connecting hole 4 of the first traction piece 1 of the adjustable traction bow to the Stewart pin, the second traction piece 2 enlarges the U-shaped opening through a clamping groove sliding mode, and the connecting hole 4 of the second traction piece 2 is connected with the other end of the Stewart pin;

step S2, fixing the adjustable traction bow: after the adjustable traction bow is connected with the Stewart pin, a fixing piece 3 at the tail of the adjustable traction bow is used for reinforcing and fixing a first traction piece 1 and a second traction piece 2, and an adjusting ring at the tail of the adjustable traction bow is connected with a traction rope;

step S3, disassembling the adjustable traction bow: firstly, the fixing piece 3 at the tail part is unscrewed, then the first traction piece 1 is pulled open from the U-shaped opening through a clamping groove sliding mode, and the second traction piece 2 is removed after the first traction piece 1 is removed.

(the order of the first traction element 1 and the second traction element 2 in steps S1 and S3 can be reversed)

The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to the disclosed embodiments are within the scope of the utility model as those skilled in the art will recognize. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.

Claims

1. The adjustable traction bow is characterized by comprising a first traction piece (1), a second traction piece (2) and a fixing piece (3), wherein one end of the first traction piece (1) is provided with a connecting hole (4), and the other end of the first traction piece extends to form a first extending part (5) towards the direction close to the second traction piece (2); one end of the second traction piece (2) is provided with a connecting hole (4), the other end of the second traction piece extends a second extending portion (6) towards the direction close to the first traction piece (1), the portion, close to the first traction piece (1), of the second extending portion (6) is provided with a connecting groove (7), and the first extending portion (5) is inserted into the connecting groove (7) and then fixed through the fixing piece (3).

2. The adjustable traction bow according to claim 1, wherein the first traction member (1) and the second traction member (2) are rectangular in cross-section.

3. The adjustable traction bow according to claim 1, wherein the second extension (6) of the second traction element (2) is extended with slot walls on both sides of the portion close to the first traction element (1), and the slot walls and the second extension (6) enclose the connection slot (7).

4. The adjustable traction bow according to claim 1, wherein the fixing member (3) is an eye screw.

5. The adjustable traction bow as claimed in claim 4, wherein the second extension (6) is provided with a first screw hole, and the lifting eye screw is connected with the first screw hole in a threaded fit manner; after the first extension part (5) is inserted into the connecting groove (7), the lifting eye screw is rotated to fix the first extension part (5) and the second extension part (6).

6. The adjustable traction bow according to claim 1, wherein a connection pipe (8) extends from the hole opening of the connection hole (4) along a side away from the connection hole (4), a second screw hole is formed on a pipe wall of the connection pipe (8), and a fixing screw is connected with the second screw hole in a threaded fit manner.

7. The adjustable traction bow according to claim 1, wherein the aperture of the connection hole (4) on the first traction member (1) extends out of a first connection tube (81) in a direction away from the second traction member (2); the hole opening of the connecting hole (4) on the second traction piece (2) extends out of a second connecting pipe (82) along the direction far away from the first traction piece (1).

8. The adjustable traction bow as claimed in claim 1, wherein a connecting pipe (8) is fixed in the connecting hole (4), a second screw hole is formed on the pipe wall of the connecting pipe (8), and a fixing screw is connected with the second screw hole in a threaded fit manner.

9. The adjustable traction bow according to claim 1, wherein the first traction member (1) transitions in a circular arc with the first extension (5); the second traction piece (2) and the second extension part (6) are in circular arc transition.