CN209933118U

CN209933118U - External fixator for patellar fracture

Info

Publication number: CN209933118U
Application number: CN201920331329.4U
Authority: CN
Inventors: 孟克布和
Original assignee: Inner Mongolia University for Nationlities
Current assignee: Inner Mongolia University for Nationlities
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-01-14
Anticipated expiration: 2029-03-15

Abstract

The utility model relates to a patella fracture external fixator, which comprises a fixed compression ring and a plurality of positioning plates, wherein the fixed compression ring is provided with a plurality of bridles and is used for being placed on the upper side of the patella, and the plurality of positioning plates are placed on the lower side of the fixed compression ring and are fixed around the knee joint through the bridles; the circumference of the fixed compression ring is provided with a flexible compression pad. The fixed clamping ring that will take a plurality of pressure pads will be placed in the kneecap periphery after the patella restoration after with the fracture, pass through the frenulum with a plurality of locating plates and fix all around the knee joint, fix the knee joint in the position of straightening, utilize the Mongolian doctor's osteopathy treatment fracture that this fixer adopted to have the expense low, fracture healing is fast, advantages such as sequela is few receive the patient deeply and favor.

Description

External fixator for patellar fracture

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to external fixator for patella fracture.

Background

Patellar fracture is a common injury, and is mainly characterized by local swelling and pain of the patella, incapability of straightening the knee joint automatically, frequent subcutaneous plaque and knee skin abrasion. The fracture of the patella generally occurs between 20 and 50 years of age, with men more than women, about 2: the patella is the largest seed bone in the four-pronged tendon in humans. Patellar fractures can be caused by either direct or indirect violent action. A very good external fixation brace and a method after patellar fracture manual reduction by Mongolian osteopathy.

The western medicine selects incision reduction internal fixation treatment after patellar fracture, but the operation treatment has the defects of high cost, slow fracture healing, more sequelae and the like.

Disclosure of Invention

An object of the embodiment of the utility model is to provide an external fixator for patellar fracture for solve the problem that present surgical treatment cost is high after patellar fracture, fracture healing is slow, the sequela is many.

In order to achieve the purpose, the external fixator for patellar fracture specifically comprises a fixed compression ring and a plurality of positioning plates, wherein the fixed compression ring is provided with a plurality of tying bands and is used for being placed on the upper side of the patella, and the plurality of positioning plates are placed on the lower side of the fixed compression ring and are fixed around the knee joint through the tying bands; the circumference of the fixed compression ring is provided with a flexible compression pad.

The number of the flexible pressure pads is three, and each flexible pressure pad is arranged between two adjacent laces.

Four laces are evenly arranged on the fixed compression ring.

The fixed clamping ring comprises a metal ring and a gauze layer wound outside the metal ring, and the flexible clamping ring is a gauze cushion layer wound outside the gauze layer.

The positioning plate comprises a first positioning plate, a second positioning plate and a third positioning plate, the first positioning plate is fixed on the inner side of the knee joint, the second positioning plate is fixed on the outer side of the knee joint, and the third positioning plate is placed on the lower side of the knee joint.

The middle part of the first positioning plate is bent towards the direction far away from the knee joint, and the two end parts of the first positioning plate are bent towards the direction close to the affected limb; the middle part of the second positioning plate is bent towards the direction close to the knee joint, and the two end parts of the second positioning plate are bent towards the direction far away from the affected limb.

The embodiment of the utility model provides a have following advantage:

the utility model discloses the fixer after the patella fracture that the fixer was used is mended doctor's whole bone resets, and the patella after will fracturing is restored the back, will attach the fixed clamping ring of a plurality of pressure pads and place in the patella periphery, pass through the frenulum with a plurality of locating plates and fix around the knee joint, fix the knee joint in the position of straightening, and the meng doctor's whole bone art treatment fracture that utilizes this fixer to adopt has the expense low, and union is fast, and the sequela advantage such as few receives patient's favor deeply.

The fixer is convenient to operate, has a very good fixing effect and obtains a good clinical curative effect.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

In the figure: 1-a fixed compression ring 2-a first positioning plate 3-a second positioning plate 4-a third positioning plate 5-a lacing 6-a metal ring 7-a gauze layer 8-a gauze cushion layer.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "inner", "outer", "left", "right", "middle", and the like, referred to in the specification are used for clarity of description only, and are not used to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof should be considered as the scope of the present invention without substantial changes in the technical content.

Example 1

The external fixator for patellar fracture comprises a fixed compression ring 1 and a positioning plate, wherein the fixed compression ring 1 is provided with a plurality of tying bands 5, the fixed compression ring 1 is placed on the upper side of the patella, and the plurality of positioning plates are placed on the lower side of the fixed compression ring 1 and fixed around the knee joint through the tying bands 5; the circumference of the fixed compression ring 1 is provided with a flexible compression pad.

The flexible pressure pad in this embodiment is three, evenly is equipped with four frenulum 5 on the fixed clamping ring 1, and every flexible pressure pad sets up between two adjacent frenulum 5. The fixed compression ring 1 in the embodiment comprises a metal ring 6 and a gauze layer 7 wound on the outer side of the metal ring 6, and the flexible compression pad is a gauze pad layer 8 wound on the outer side of the gauze layer 7.

The locating plate includes first locating plate 2, second locating plate 3 and third locating plate 4, and first locating plate 2 is fixed at the knee joint inboard, and second locating plate 3 is fixed in the knee joint outside, and third locating plate 4 is placed at the knee joint downside. Wherein the middle part of the first positioning plate 2 is bent towards the direction far away from the knee joint, and the two end parts of the first positioning plate 2 are bent towards the direction close to the affected limb; the middle part of the second positioning plate 3 is bent towards the direction close to the knee joint, and the two end parts of the second positioning plate 3 are bent towards the direction far away from the affected limb.

The operator keeps the injured limb in the straight position, fixes the distal broken end with one hand, pinches the proximal broken end with the other hand, pushes down to squeeze the distal broken end; the two bone blocks can be dislocated left and right to push away the aponeurosis clamped between the folding ends; after feeling the friction of the rough bones, the two bone blocks are squeezed relatively and immovable, and if the patella is not smooth, the patella can be pressed flat by fingers. After the reduction, the fixed compression ring 1 which is proper in size and is provided with three gauze cushion layers 8 and four tying bands 5 is buckled on the periphery of the patella, and the first positioning plate 2, the second positioning plate 3 and the third positioning plate 4 are respectively placed on the left side, the right side and the back side of the knee joint of the injured limb and are crosswise tied above the fixed compression ring 1 by the four tying bands 5. After the knee joint was fixed in the straightened position, a sandbag (not shown) was placed on each of the inner and outer sides of the knee joint to fix the knee joint by squeezing for 5 weeks. The fixed tightness is checked frequently, and the knee holding ring should be shrunk after the swelling disappears.

The inventor of the application preliminarily manufactures the external fixator for patellar fracture through long-term clinical experience, and verifies the fixing effect of the fixator through clinical observation and obtains good clinical curative effect. Because the size of the patella of each person is different according to individual difference of patients, the fixing support temporarily lacks the size adjusting function, and the fixator can only be manufactured according to the weight of the patient and the local soft tissue swelling degree clinically. The later stage can be according to human anatomy characteristics and biomechanics principle development more advanced, adjustable, the patella fracture fixer of customization, this fixer still belongs to the utility model discloses a protection scope.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. An external fixator for patellar fracture is characterized in that: the external fixator for patellar fracture comprises a fixed compression ring (1) and positioning plates, wherein a plurality of tying bands (5) are arranged on the fixed compression ring (1), the fixed compression ring (1) is placed on the upper side of the patella, and a plurality of positioning plates are placed on the lower side of the fixed compression ring (1) and fixed around the knee joint through the tying bands (5); the circumference of the fixed compression ring (1) is provided with a flexible pressure pad.

2. The external patellar fracture fixator according to claim 1, wherein: the number of the flexible pressure pads is three, and each flexible pressure pad is arranged between two adjacent laces (5).

3. The external patellar fracture fixator according to claim 1 or 2, wherein: four tying belts (5) are evenly arranged on the fixed compression ring (1).

4. The external patellar fracture fixator according to claim 1, wherein: fixed clamping ring (1) include becket (6) and twine gauze layer (7) in becket (6) outside, flexible pressure pad be gauze bedding course (8) in gauze layer (7) outside of twining.

5. The external patellar fracture fixator according to claim 1, wherein: the locating plate include first locating plate (2), second locating plate (3) and third locating plate (4), first locating plate (2) are fixed at the knee joint inboard, second locating plate (3) are fixed in the knee joint outside, third locating plate (4) are placed at the knee joint downside.

6. The external patellar fracture fixator according to claim 5, wherein: the middle part of the first positioning plate (2) is bent towards the direction far away from the knee joint, and the two end parts of the first positioning plate (2) are bent towards the direction close to the affected limb; the middle part of the second positioning plate (3) is bent towards the direction close to the knee joint, and the two end parts of the second positioning plate (3) are bent towards the direction far away from the affected limb.