CN204072284U - One is clipping fracture fixation guider slidably - Google Patents

Abstract

The utility model discloses a slidable clamping fracture fixation guide, which comprises an arc-shaped fixation handle and a first fixation sleeve and a second fixation sleeve respectively arranged at two ends of the arc-shaped fixation handle. A matching first slidable guide sleeve is provided in a fixed sleeve, and a second slidable guide sleeve matched with it is provided in the second fixed sleeve, and the arc-shaped fixed There is a support rod inside the handle. The slidable clamping fracture fixation guide has the advantages of simple structure, convenient and quick use, and firm fracture fixation, which can reduce intraoperative X-ray exposure, and effectively avoid postoperative internal fixation failure, reduction loss and other complications.

Description

A slidable clamping fracture fixation guide

technical field

The utility model belongs to the field of medical equipment, in particular to a slidable clamping fracture fixation guide.

Background technique

Two-part fractures involving the articular surface are more common in clinical practice, such as tibial plateau fractures, femoral condyle fractures, humeral condyle fractures, and wrist scaphoid fractures. The principle of treatment for such fractures is to convert the two-part fractures into For some fractures, the current clinical fixation method is mostly blind piercing of Kirschner wires under X-ray fluoroscopy. After repeated confirmation that the position of the Kirschner wires is satisfactory, hollow compression screws are drilled along the Kirschner wires to fix the fracture end. There are two main technical problems: one is that for different parts and different types of fractures, it is difficult to accurately locate the needle path of the selected Kirschner wire, repeated X-ray fluoroscopy will inevitably increase the radiation exposure of medical staff, and it is easy to damage Bone quality affects the reliability of fracture end fixation; second, towel forceps are commonly used clinically to clamp the two ends of the fracture line. It may cause interference, so it is difficult to maintain and fix the bone block after reduction.

Utility model content

Aiming at the technical problems raised by the background technology, the utility model provides a slidable clamping fracture fixation guide for solving the above problems.

The purpose of this utility model can be realized through the following technical solutions:

A slidable clamping fracture fixation guide, which includes an arc-shaped fixation handle, a first fixation sleeve and a second fixation sleeve respectively arranged at both ends of the arc-shaped fixation handle, and the first fixation sleeve A matching first slidable guide sleeve is provided inside, a second slidable guide sleeve matched with it is provided inside the second fixed sleeve, and the inside of the arc-shaped fixed handle is provided with Support tie rod. The supporting pull rod prevents deformation of the arc-shaped fixing handle and displacement of the fixing sleeves at both ends of the arc-shaped fixing handle during the process of clamping and fixing the fractured bone by sliding guide sleeves on both sides.

The inner sides of the first fixed sleeve and the second fixed sleeve are provided with threads, and the outer surfaces of the first slidable guide sleeve and the second slidable guide sleeve are provided with threads, and are arranged on the first fixed sleeve. The threads on the inner side of the second fixed sleeve are respectively matched with the threads on the outer surfaces of the first slidable guide sleeve and the second slidable guide sleeve, and by rotating the first slidable guide sleeve and the second slidable guide The sleeve is used to adjust the distance between the first slidable guide sleeve and the second slidable guide sleeve. It is convenient for the fixation of two-part fractures of different types and different positions.

Tails of the first slidable guide sleeve and the second slidable guide sleeve are both serrated. One is to help the precise positioning of the entry point, exit point and screw path of the Kirschner wire; the other is to form a strong occlusal and stable fixation effect on the bone surface through the serrations at the tail.

The first slidable guide sleeve and the second slidable guide sleeve have an inner diameter of 2-4 mm, an outer diameter of 4-6 mm, and a length of 20-40 mm.

The inner diameter of the first fixed sleeve and the second fixed sleeve is 4-6 mm, the outer diameter is 6-8 mm, and the length is 10 mm.

The distance (W value) between the first fixing sleeve and the second fixing sleeve is 40-60 mm.

The beneficial effects of the utility model:

Through the above-mentioned structural design, the slidable clamping fracture fixation guide designed by the utility model has the following structural features: the inner sides of the first fixing sleeve and the second fixing sleeve are provided with threads, and the first slidable guide The outer surfaces of the sleeve and the second movable guide sleeve are provided with matching threads, which can be freely adjusted in the fixed sleeve through the slidable sleeve, and at the same time cooperate with sliding guide sleeves of different lengths to facilitate its It is used in the fixation of bone fragments with different diameters and lengths, and can exert a certain pressure on the end of the reduced bone fragment. The tails of the first slidable guide sleeve and the second slidable guide sleeve are both serrated, and the zigzag design helps to form a strong bite on the bone surface, which plays an anti-slip effect and greatly improves the Structural compatibility and stability in use of the slidable clamping fracture fixation guide; a support rod is designed on the inner side of the proximal end of the arc-shaped fixation handle, and the sliding guide sleeve on both sides clamps and fixes the bone , effectively avoiding the elastic deformation of the arc-shaped fixed handle and the risk of deviation of the fixed sleeves on both sides of the distal end of the arc-shaped fixed handle. According to different parts of the fracture and the direction of the fracture line, the fixing sleeve can be used to determine the entry point and exit point of the Kirschner wire on the cortical surface of the bone block on both sides according to the needs. The slidable clamping fracture fixation guide has a simple structure , Easy to use, fast, and firm fracture fixation, can reduce intraoperative X-ray exposure, and effectively avoid postoperative internal fixation failure, reduction loss and other complications.

Description of drawings

Fig. 1 is a structural diagram of a retractable clamping fracture fixation guide.

Fig. 2 is a structural diagram of the combined components of the retractable clamping fracture fixation guide.

Fig. 3 is a state diagram of the retractable clamping fracture fixation guide in use.

Detailed ways

As shown in Figures 1 and 2, a slidable clamping fracture fixation guide includes an arc-shaped fixation handle 1 and first fixation sleeves 2-1 and The second fixed sleeve 2-2, the first fixed sleeve 2-1 is provided with a matching first slidable guide sleeve 4-1, the second fixed sleeve 2-2 A matching second slidable guide sleeve 4-2 is provided inside, and a support rod 3 is provided inside the arc-shaped fixed handle 1 .

The inner sides of the first fixed sleeve 2-1 and the second fixed sleeve 2-2 are provided with threads, and the outer sides of the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-2 are threaded. The surface is provided with threads, and the threads on the inside of the first fixed sleeve 2-1 and the second fixed sleeve 2-2 are respectively connected with the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4. -2 The threads on the outer surface are matched, and the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-1 and the second slidable guide sleeve are adjusted by rotating the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-2 The distance between the sleeves 4-2.

The tails of the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-2 are both serrated.

The first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-2 have an inner diameter of 2-4 mm, an outer diameter of 4-6 mm, and a length of 20-40 mm.

The inner diameter of the first fixed sleeve 2-1 and the second fixed sleeve 2-2 is 4-6 mm, the outer diameter is 6-8 mm, and the length is 10 mm.

The distance (W value) between the first fixing sleeve 2-1 and the second fixing sleeve 2-2 is 40-60 mm.

As shown in Figure 3, firstly, according to the different fracture sites and the sizes of different bone fragments of the patient, an appropriate slidable clamping fracture fixation guide (with different W values) is selected, and slidable guide sleeves of different lengths are installed to make the fracture as possible as possible. The spacing (W value) between the first fixing sleeve 2-1 and the second fixing sleeve 2-2 matches the size of the bone block 5; according to the difference in the direction of the fracture line, determine the gram of the cortical surface of the bone block ends on both sides. Then, hold the arc-shaped fixed handle 1 and place the first fixed sleeve 2-1 and the second fixed sleeve 2-2 respectively on the surface of the bone block at both ends of the fracture line. At the needle point and the exit point, rotate the first slidable guide sleeve 4-1 and the second slidable guide sleeve 4-2 at both ends to properly pressurize the bone block 5 that has been successfully reset, and pass through the needle at the needle entry point. The slidable guide sleeve is drilled into a 2mm diameter Kirschner wire, and it is confirmed that it passes through the other end of the slidable guide sleeve. After the fracture reduction and the position of the Kirschner wire are confirmed under the "C" arm fluoroscopy, the slidable wire is removed. A clamping fracture fixation guide is used, and a hollow lag screw with a diameter of 3.5-5.5 mm is drilled under the guidance of a Kirschner wire. Complete fracture reduction and compression fixation.

Claims (6)

1. a slidably clipping fracture fixation guider, it is characterized in that it comprises arc fixed handle (1) and is located at the first fixed muffle (2-1) and second fixed muffle (2-2) at described arc fixed handle (1) two ends respectively, the the first slidably pilot sleeve (4-1) matched with it is provided with in described the first fixed muffle (2-1), the the second slidably pilot sleeve (4-2) matched with it is provided with in described the second fixed muffle (2-2), described arc fixed handle (1) inner side is provided with tie-strut (3).

2. slidably clipping fracture fixation guider according to claim 1, it is characterized in that described first fixed muffle (2-1) and the second fixed muffle (2-2) inner side are equipped with screw thread, the outer surface of the described first slidably pilot sleeve (4-1) and second slidably pilot sleeve (4-2) is provided with screw thread, the screw thread being located at the first fixed muffle (2-1) and the second fixed muffle (2-2) inner side matches with the screw thread being located at the first slidably pilot sleeve (4-1) and second slidably pilot sleeve (4-2) outer surface respectively, by rotating the first slidably pilot sleeve (4-1) and second slidably pilot sleeve (4-2), the adjustment first slidably distance of pilot sleeve (4-1) and second slidably between pilot sleeve (4-2).

3. slidably clipping fracture fixation guider according to claim 1 and 2, is characterized in that the afterbody of the described first slidably pilot sleeve (4-1) and second slidably pilot sleeve (4-2) is zigzag.

4. slidably clipping fracture fixation guider according to claim 1 and 2, the internal diameter that it is characterized in that the described first slidably pilot sleeve (4-1) and second slidably pilot sleeve (4-2) is 2 ~ 4mm, external diameter is 4 ~ 6mm, and length is 20 ~ 40mm.

5. slidably clipping fracture fixation guider according to claim 1 and 2, it is characterized in that the internal diameter of described first fixed muffle (2-1) and the second fixed muffle (2-2) is 4 ~ 6mm, external diameter is 6 ~ 8mm, and length is 10mm.

6. slidably clipping fracture fixation guider according to claim 1 and 2, is characterized in that the spacing between described first fixed muffle (2-1) and the second fixed muffle (2-2) is 40 ~ 60mm.