CN212089704U

CN212089704U - Absorbable rib fixer

Info

Publication number: CN212089704U
Application number: CN201922451186.3U
Authority: CN
Inventors: 赵沛; 张志强; 缪祥文; 闫鹏伟; 宋丽霞; 李健; 王亮亮
Original assignee: Lanzhou Seemine Shape Memory Alloy Co ltd
Current assignee: Lanzhou Seemine Shape Memory Alloy Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-12-08
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an absorbable rib fixer, which comprises an absorbable beam bent into an arc shape at one time along the vertical direction, wherein a plurality of absorbable fixing claws are respectively arranged on the end surfaces of two sides of the absorbable beam in the length direction, the absorbable fixing claws on the two sides are symmetrically arranged, the absorbable fixing claw on one side is provided with a round hole, and the absorbable fixing claw on the other side is provided with an inclined notch; the absorbable beam bent into the arc shape can be tightly attached to the rib bone surface, and the round holes and the inclined notches on the absorbable fixing claws are attached to the rib bone surface through matching with the absorbable suture, so that the butt joint mode of the fixator is stable, the axial movement of the fixator is prevented, and the slippage and displacement of the rib fracture end can not occur; the absorbable beam and the absorbable fixed claws are made of PLLA materials, products are discharged out of the body through metabolism after being degraded in the body, the absorbable beam and the absorbable fixed claws have no harm and toxic or side effect on the human body, do not need to be taken out after being implanted into the human body, do not need secondary operation for a patient, and reduce the pain of the patient.

Description

Absorbable rib fixer

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to can absorb rib fixer.

Background

The rib has 12 pairs, is symmetrical left and right, connects thoracic vertebra and sternum to form thorax, and has protective effect on thoracic organs. The human ribs are bones used to protect organs such as lungs, heart, liver, etc., and are the framework of the entire thoracic cavity. The fracture of the rib is 90% in chest trauma patients, which brings great pain and inconvenience to the patients, especially the fracture of the rib posterior rib part, because the rib is close to the spine and the shape of the rib is different from that of the lateral anterior rib.

In the operation, an encircling metal bone fracture plate is usually adopted, the bone fracture plate is fixed at the position of a rib fracture through an encircling claw, and the bone fracture is taken out after healing. The materials used by the rib bone plate are mostly metal materials, so the rib bone plate cannot exist in a human body stably for a long time, and needs to be taken out by a secondary operation, so the operation cost is high, and the wound of a patient is large. The fixation means is typically screws or wires, all of which cause different degrees of injury to the ribs.

Patent No. 201420635714.5 discloses an encircling metal bone plate, which comprises: mainboard, symmetry set up in a plurality of stationary dog of mainboard both sides, are equipped with the screw hole on the mainboard, and the screw hole is the toper counter bore, and screw hole longitudinal arrangement is equal on the mainboard and screw hole distance mainboard both sides distance, and the stationary dog end is equipped with the platykurtic contact plate, and the mainboard both ends are equipped with the arc breach.

Based on the above structure, the bone fracture plate has the following three problems.

The physiological structure of human skeleton is not considered in the structure, if the bone fracture plate is fixed at the rear rib part, the encircling claw is not encircled in place, only the screw is fixedly connected, the butt joint mode lacks stability, slippage and displacement are easy to occur, the skeleton cannot be healed or deformed, and the risk of product fracture is increased.

Secondly, the bone structure of the rib bone of a human body is not considered, if the bone fracture plate is fixed by screws in an auxiliary mode, the screws are taken out after the affected bone is healed, secondary damage to the bone can be caused, and the taken-out part is easy to fracture.

Thirdly, the sick bone needs to return to the hospital again to disassemble the encircling metal bone fracture plate after healing, thereby increasing the pain of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an can absorb rib fixer to solve the problem that rib coaptation board butt joint mode lacks stability among the prior art, can not encircle the easy slippage and the displacement of taking place of arriving in the position.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an can absorb rib fixer, includes along the disposable absorption crossbeam that bends into the arc type of vertical direction, can absorb crossbeam length direction's both sides terminal surface is equipped with a plurality of can absorb stationary dog respectively, and the equal symmetry of the absorption stationary dog of both sides sets up, and wherein the absorbable stationary dog of one side is equipped with the round hole, and the absorbable stationary dog of opposite side is equipped with oblique breach.

Further, the end surface between two adjacent absorbable fixing claws is in a circular arc shape.

Furthermore, the absorbable beam and the absorbable fixing claws are made of PLLA materials.

The utility model has the advantages that: the absorbable beam bent into an arc shape can be tightly attached to the rib surface, and the circular holes and the inclined notches on the absorbable fixing claws are attached to the rib surface through matching with absorbable sutures, so that the butt joint mode of the fixator is stable, the axial movement of the fixator is prevented, the fixation is enhanced, and the slippage and displacement of the rib fracture end are avoided; the absorbable beam and the absorbable fixing claws are made of PLLA (poly L lactic acid), the matched suture material is made of PPDO (polydioxanone), and after the absorbable beam and the absorbable fixing claws are degraded in vivo, products are discharged out of the body through metabolism and have no harm and toxic or side effect on a human body, so that the fixator and the suture do not need to be taken out after being implanted into the human body, a patient does not need a secondary operation, and the pain of the patient is reduced; the absorbable material is light, and the foreign body sensation of the patient is light after the absorbable material is implanted into the human body.

Drawings

FIG. 1 is a schematic view of an absorbable rib fixator of the present invention;

fig. 2 is a diagram illustrating a state of the absorbable rib fixer of the present invention.

In the figure: 1. an absorbable stationary jaw; 2. an absorbing beam; 3. a circular hole; 4. an oblique notch; 5. absorbable suture; 6. ribs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, an absorbable rib fixer comprises an absorbable beam 2 which is bent into an arc shape along the vertical direction at one time, the substrate of the absorbable beam 2 is a flat plate and is bent into a certain radian from top to bottom along the vertical direction at one time, the radian of the absorbable beam 2 is designed according to the radian of a rib so as to be tightly attached to the rib surface when in use, a plurality of absorbable fixing claws 1 are respectively arranged on the end surfaces of two sides of the absorbable beam 2 in the length direction, the absorbable fixing claws 1 on the two sides are symmetrically arranged and are in one-to-one correspondence to be used by being matched with a PPDO (poly-p-dioxanone) suture line for fixing, a round hole 3 is arranged on the fixing claw 1 on one side for suture fixing, an inclined notch 4 is arranged on the fixing claw 1 on the other side for fixing the suture after the rib is bound, and the end surface A between the two adjacent absorbable fixing, the rib nerves can be avoided during installation, and pain caused by intercostal nerve compression can be avoided; the absorbable fixing claw 1 is designed according to the physiological structure of the section of the rib, and the length of the absorbable fixing claw accords with the thickness of the section of the rib.

The absorbable main beam 2 and the absorbable fixed claws 1 are both made of absorbable material PLLA, the absorbable suture 4 material matched with each other is PPDO (poly-p-dioxanone), PLLA is an important biodegradable high polymer material, and the absorbable suture is characterized by being nontoxic, nonirritant, biodegradable, absorbable, high in strength, good in plasticity and easy to process and form, and the PLLA is decomposed by enzyme in a living body to finally form carbon dioxide and water, so that the absorbable main beam and the absorbable fixed claws have good biocompatibility, and after in vivo degradation, products are discharged out of the body through metabolism without harmfulness and toxic and side effects on a human body; the absorbable material is light, and the foreign body sensation of the patient is light after the absorbable material is implanted into the human body.

As shown in fig. 2, the utility model discloses a use method does: fixing an absorbable suture 5 in a round hole 3 on an absorbable fixing claw 1 in advance, and aligning the fracture part of the patient in a lateral decubitus position by the patient to slightly free and expose the fracture part; then removing blood clots, firstly performing anatomical reduction on the fracture end, selecting an absorbable beam 2 similar to the shape of the rib, buckling the absorbable beam 2 on the rib 6, drawing an absorbable suture 5 by using a special tool, penetrating the absorbable suture 5 from the inner side of the rib 6, passing through an inclined notch 4 on an absorbable fixing claw 1 on the other side of the absorbable beam 2, winding the absorbable suture to the back of the absorbable beam 2, binding, and tightly locking the rib fracture end by the absorbable beam 2 and the absorbable suture 5 to finish the fixation of fracture.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An absorbable rib fixator, comprising: including along the disposable absorption crossbeam (2) of bending into the arc type of vertical direction, the both sides terminal surface that can absorb crossbeam (2) length direction is equipped with a plurality of absorption stationary dog (1) respectively, and the equal symmetry setting of absorption stationary dog (1) of both sides, wherein the absorption stationary dog (1) of one side is equipped with round hole (3), and the absorption stationary dog (1) of opposite side is equipped with oblique breach (4).

2. The absorbable rib fixation device of claim 1, wherein: the end surface between two adjacent absorbable fixing claws (1) is arc-shaped.

3. The absorbable rib fixation device of claim 1, wherein: the absorbable beam (2) and the absorbable fixing claws (1) are both made of PLLA materials.