Bone traction needle guiding device

Abstract

The present invention discloses a bone traction needle guiding device, comprising a traction bow and a pair of traction bow fixers, the traction bow comprising a traction rope fixing ring, a U-shaped bow body, a traction needle fixing hole, and a fixer limiting device, any traction bow fixer comprising a fixing rod, a traction needle positioning hole and a crescent-shaped fixer body, the traction needle fixing hole and the fixer limiting device are symmetrically distributed on two side arms of the U-shaped bow body, the crescent-shaped fixer body is provided with a traction needle positioning hole, the traction needle fixing hole is coaxial with the traction needle positioning hole, the bone traction needle passes through the symmetrical traction needle fixing hole and the traction needle positioning hole, the fixing rod is fixedly connected to the outer side of the crescent-shaped fixer body and is parallel to the axial direction of the traction needle positioning hole, the fixing rod and the fixer limiting device are arranged as a sliding pair, the device has the advantages of simple structure, convenient operation and precise positioning, avoiding displacement when the bone traction needle is driven, and ensuring the stability of the bone traction bow and the precision of the bone traction needle.

Description

Technical Field

[0001] The invention relates to human daily necessities, in particular to medical equipment, and specifically to a bone traction needle guiding device. Background Art

[0002] Bone traction is one of the more common treatment methods in orthopedics. It is mostly used for unstable fractures of adult long bones, such as comminuted, oblique and spiral fractures; or fracture ends displaced due to muscle tension, such as humeral, tibia, fibula and femur fractures. Bone traction acts on the affected limb through a traction device, using the pull of gravity to relieve the tension of skeletal muscles in the fracture area, so that local blood flow is unobstructed, tissue edema is reduced, and the retraction of the fracture ends is prevented. The fracture is repositioned to a certain extent, which is conducive to further surgical treatment, reduces the difficulty of repositioning during surgery, and improves the success rate of surgical repositioning.

[0003] In the actual operation process of bone traction, the bone traction needle is hammered through the soft tissue or bone. The surgeon often determines the bone traction angle roughly by visual inspection, thereby determining the direction of needle insertion. During the needle insertion process, the surgeon often estimates the needle insertion and withdrawal points by feeling. In addition, the patient's local swelling and deformity will often lead to unsatisfactory needle withdrawal points and directions, resulting in the traction direction being inconsistent with the axis of the fracture end, and ultimately leading to poor fracture healing or deformity; secondly, repeated needle withdrawal and re-insertion increase the probability of infection and injury; at the same time, the wrong needle insertion angle and the deviation of the needle withdrawal point may cause important blood vessels, nerves, tendons, joint capsules and other soft tissue damage. Summary of the invention

[0004] The purpose of the present invention is to overcome the technical problems of misjudgment of traction angle and unsatisfactory needle insertion point, needle exit point and direction of bone traction needle when inserting bone traction needle in bone traction surgery in the prior art, and to provide a bone traction needle guiding device with simple structure, convenient operation, precise positioning and prevention of traction needle angle deviation. The bone traction needle guiding device mainly uses the principle of limb fixation with braces to fix the patient's limb and the bone traction arch. The crescent-shaped design helps to fit the patient's limb so that the entire guiding device is firmly fixed to the patient's limb. The traction needle fixing hole and the traction needle positioning hole fix the traction needle insertion point, and the direction will not deviate during the needle insertion process, ensuring that the patient's limb is passed through at an accurate angle and insertion point. The device is precisely positioned to prevent the traction needle angle from deviating, ensuring the stability of the bone traction arch and the accuracy of the bone traction needle, improving the traction success rate and reducing iatrogenic injuries.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A bone traction needle guiding device comprises a traction bow and a pair of traction bow fixers, the traction bow comprises a traction rope fixing ring, a U-shaped bow body, and a fixer limiting device, the traction bow fixer is one on each side and symmetrically installed, any traction bow fixer comprises a fixing rod and a crescent-shaped fixer body, the traction rope fixing ring is located in the middle of the transverse part of the U-shaped bow body, and is used to tie the traction rope and the weight, more than four traction needle fixing holes are symmetrically distributed on the left and right side arms of the U-shaped bow body, the crescent-shaped fixer body is distributed with traction needle positioning holes with the same number as the traction needle fixing holes, any traction needle fixing hole is coaxial with a traction needle positioning hole, the bone traction needle passes through the traction needle fixing hole and the traction needle positioning hole at the left and right symmetrical positions, the fixer limiting device is symmetrically arranged on the left and right side arms of the U-shaped bow body, the fixing rod is fixedly connected to the outer side of the crescent-shaped fixer body, the fixing rod is parallel to the axial direction of the traction needle positioning hole, and the fixing rod and the fixer limiting device are arranged as a sliding pair.

[0007] Furthermore, the bow body is made of hard metal material.

[0008] Furthermore, a set screw is provided in front of the fixer limiting device for fixing the traction bow fixer.

[0009] Furthermore, the spacing between the traction needle fixing holes is 1 cm.

[0010] Compared with the prior art, the present invention has a positive and obvious effect. The present invention has a reasonable structure, can accurately locate and prevent the traction needle from deviating in angle, ensures the stability of the bone traction arch and the accuracy of the bone traction needle, improves the traction success rate, and reduces iatrogenic injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the bone traction needle guiding device of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the arch body of the bone traction needle guiding device of the present invention.

[0013] Figure 3 It is a structural schematic diagram of a traction arch fixer of a bone traction needle guiding device according to the present invention.

[0014] Description of reference numerals:

[0015] Traction rope fixing ring 1; bow body 2; traction needle fixing hole 3; fixer limiting device 4; traction bow fixer 5; fixing rod 51; traction needle positioning hole 52; fixer body 53; bone traction needle 6; set screw 7. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example: Figure 1-3 As shown, a bone traction needle guiding device comprises a traction bow and a pair of traction bow fixers 5, the traction bow comprises a traction rope fixing ring 1, a U-shaped bow body 2 and a fixer limiting device 4, more than four traction needle fixing holes 3 are symmetrically distributed on the left and right arms of the U-shaped bow body 2, one traction bow fixer 5 is symmetrically installed on each side, any traction bow fixer 5 comprises a fixing rod 51 and a crescent-shaped fixer body 53, traction needle positioning holes 52 are distributed on the crescent-shaped fixer body 53, the number of traction needle positioning holes 52 is the same as the number of traction needle fixing holes 3, any traction needle fixing hole 3 is coaxial with a traction needle positioning hole 52, the bone traction needle 6 passes through the traction needle fixing holes 3 and the traction needle positioning holes 52 at left and right symmetrical positions, the traction rope fixing ring 1 is located in the middle of the horizontal part of the U-shaped bow body 2, and is used to tie the traction rope and the weight, The fixator limit device 4 is symmetrically arranged on the left and right side arms of the U-shaped bow body 2, and the fixing rod 51 is fixedly connected to the outer side of the crescent-shaped fixator body 53. The fixing rod 51 is parallel to the axial direction of the traction needle positioning hole 52, and the fixing rod 51 and the fixator limit device 4 are arranged as a sliding pair.

[0018] Furthermore, a set screw 7 is provided in the fixer limiting device 4 for fixing the traction bow fixer 3 .

[0019] Furthermore, the U-shaped bow body 2 is made of hard metal material.

[0020] Furthermore, eight traction pin fixing holes 3 are symmetrically distributed on the left and right arms of the U-shaped arch body 2 , and each small hole is 1 cm apart, for fixing and guiding the bone traction pin 6 .

[0021] The working process of the present invention is as follows: first determine the traction position and the needle insertion point of the affected limb, and mark them on the skin; use the traction bow fixer 5 to fix the entire guiding device on the patient's limb, and align the mark on the skin with the traction needle positioning hole 52 on the fixer; tighten the set screw 7; then insert the bone traction needle 6 into the traction needle fixing hole 3 corresponding to the marked traction needle positioning hole 52; through the traction needle positioning hole 52, use a hammer to knock the needle tail to insert the needle, so that the bone traction needle passes through the coaxial traction needle fixing hole 3 and the corresponding traction needle positioning hole 52, penetrates the affected limb, and pokes out from the traction needle positioning hole 52 and the traction needle fixing hole 3 on the opposite side; finally, tie the traction rope to the traction rope fixing ring 1 above the bow body, and loosen the set screw 7.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A bone traction needle guiding device, comprising a traction bow and a pair of traction bow fixers, the traction bow comprising a traction rope fixing ring, a U-shaped bow body and a fixer limiting device, the traction bow fixer is one on each side and symmetrically installed, any traction bow fixer comprises a fixing rod and a crescent-shaped fixer body, the traction rope fixing ring is located in the middle of the transverse part of the U-shaped bow body, more than four traction needle fixing holes are symmetrically distributed on the left and right side arms of the U-shaped bow body, the crescent-shaped fixer body is distributed with traction needle positioning holes with the same number as the traction needle fixing holes, any traction needle fixing hole is respectively coaxial with a traction needle positioning hole, the bone traction needle passes through the traction needle fixing hole and the traction needle positioning hole at the left and right symmetrical positions, the fixer limiting device is symmetrically arranged on the left and right side arms of the U-shaped bow body, the fixing rod is fixedly connected to the outer side of the crescent-shaped fixer body, the fixing rod is parallel to the axial direction of the traction needle positioning hole, and the fixing rod and the fixer limiting device are arranged as a sliding pair.

2. The bone traction needle guiding device according to claim 1, characterized in that: The bow body is made of hard metal material.

3. The bone traction needle guiding device according to claim 1 or 2, characterized in that: The fixer limiting device is provided with a set screw for fixing the traction bow fixer.

4. The bone traction needle guiding device according to claim 1, characterized in that: The spacing between the traction needle fixing holes is 1 cm.

Images