CN209899548U - Memory alloy rib bone plate - Google Patents

Abstract

The utility model discloses a memory alloy rib coaptation board, including the flat crossbeam that has the radian, the one end of flat crossbeam is equipped with the fixed hook, and the other end of flat crossbeam is equipped with many to embracing the arm and every to embracing the arm and forming oval structure, embraces the arm symmetry and sets up and all be equipped with the end tooth on the both sides of flat crossbeam and being located the arm of embracing at both ends. The utility model discloses can stride across the breastbone, not only can fix costal cartilage fracture, also can fine fixed single rib multiple fracture condition moreover, have good biocompatibility and unique "memory" performance, provide good mechanics assurance for union of fracture, can prevent that postoperative patient coughs or breathe and lead to coaptation board axial displacement, be favorable to union of fracture. The utility model has the advantages of being simple in structure and convenient in operation, fixed reliable, laminating nature are good, greatly reduced the operation degree of difficulty, saved operation time, reduced patient's misery, for clinical the vacancy of having filled fixed costal cartilage fracture and single rib multiple fracture.

Description

Memory alloy rib bone plate

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to memory alloy rib coaptation board.

Background

The human ribs are bones used to protect organs such as heart, lung, liver, etc., and are the framework of the entire thoracic cavity. In recent years, the rib is more and more damaged or broken due to car accidents and falling injuries, particularly, the costal cartilage fracture can cause injuries to some organs in the human body, and patients can feel very strong pain during coughing and breathing; in addition, clinically, costal cartilage fracture fixation has certain difficulty, and the common method mainly comprises the fixation of a steel wire and a titanium alloy steel plate screw by means of a sternum, but has the defects of incapability of tightly fitting the physiological structure of human skeleton, unreliable fixation, complex operation process, large wound, increased pain of patients, prolonged operation time, more postoperative complications and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem existing in the prior art, and providing a memory alloy rib bone fracture plate which has simple structure, convenient operation, firm fixation, good laminating property, reduced operation difficulty, saved operation time and reduced pain of patients.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a memory alloy rib coaptation board, is including the flat crossbeam that has the radian, the one end of flat crossbeam is equipped with the fixed hook, the other end of flat crossbeam is equipped with many pairs of armful arms and every forms oval structure to the armful arm, the arm symmetry that encircles sets up in the both sides of flat crossbeam and all is equipped with the end tooth on the armful arm that is located both ends.

Furthermore, a hollow hole is formed in the flat beam.

Furthermore, the fixed hooks are two semicircular fixed hooks, and the two fixed hooks are 10-45 in shape⁰Are fixed side by side at the ends of the flat beam.

Furthermore, the flat beam, the encircling arm and the fixing hook are of an integrated structure and made of TiNi shape memory alloy.

Further, the hollowed-out holes are at least one of strip-shaped holes, elliptical holes and circular holes.

Furthermore, the encircling arms are 3-4 pairs.

Further, the end teeth are saw-toothed protrusions.

The utility model discloses relative prior art has following beneficial effect: the memory alloy rib bone fracture plate of the utility model mainly comprises a flat beam, an encircling arm, end teeth and a fixing hook, can stride across the sternum, not only can fix costal cartilage fracture, but also can well fix the condition of multiple fractures of a single rib. The utility model is made of TiNi shape memory alloy material, has good biocompatibility and unique 'memory' performance, can form continuous self-pressurization at the normal body temperature of human body, and provides good mechanical guarantee for fracture healing; the ring-embracing flat structure is designed according to the physiological curve of the human rib, so that the broken end of the rib is more firmly fixed, the damage of the broken end of the rib to visceral organs in the thoracic cavity and the outward turning and angulation deformity of the broken end of the rib are effectively avoided, the incidence rate of rib neuralgia is reduced, the intrathoracic pain of a patient is effectively relieved, and the hospitalization time is shortened; the encircling arms at the two most ends of the utility model are provided with the end teeth, which has good holding force for the affected bone, can prevent the axial displacement of the bone fracture plate caused by the cough or breath of the postoperative patient and is beneficial to the fracture healing; the semicircular fixing hook of the utility model can cross the sternum and hook the gap between the opposite side ribs, and the fixation is firm; the flat beam of the utility model can also adopt a hollow structure, thereby not only reducing the weight of the bone fracture plate, but also reducing the foreign body sensation after being implanted into the human body, and exposing the fracture line, thereby being convenient for observing the fixation condition of the affected bone; the utility model discloses simple structure, clinical convenient operation, fixed reliable, laminating nature are good, greatly reduced the operation degree of difficulty, saved operation time, reduced patient's misery, for clinical the vacancy of having filled fixed costal cartilage fracture and single rib multiple fracture.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1;

fig. 4 is a schematic structural view of the flat beam of the present invention when hollowed out;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 4;

fig. 7 is a usage state diagram of the present invention.

The utility model discloses the reference sign is as follows: 1. a flat cross-beam; 2. an encircling arm; 3. an end tooth; 4. a fixed hook; 5. and (6) hollowing out the holes.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example 1

As shown in figures 1-3, the memory alloy rib bone fracture plate comprises a flat beam 1 with radian, wherein one end of the flat beam 1 is provided with a fixing hook 4, the fixing hook 4 is two semicircular fixing hooks 4, and the two fixing hooks 4 are 10-45 in shape⁰The angle of the flat beam 1 is fixed at the end of the flat beam 1 side by side, the other end of the flat beam 1 is provided with 3-4 pairs of encircling arms 2, each pair of encircling arms 2 forms an oval structure, the encircling arms 2 are symmetrically arranged at two sides of the flat beam 1, the encircling arms 2 at the two ends are provided with end teeth 3, the end teeth 3 are saw-toothed protrusions, the flat beam 1, the encircling arms 2 and the fixing hooks 4 are of an integrated structure and made of TiNi shape memory alloy.

Example 2

As shown in fig. 4-6, a memory alloy rib bone fracture plate comprises a flat beam 1 with a radian, a hollow hole 5 is arranged on the flat beam 1, the hollow hole 5 is at least one of a strip-shaped hole, an elliptical hole and a circular hole, one end of the flat beam 1 is provided with a fixed hook 4, the fixed hook 4 is two semicircular fixed hooks 4, and the two fixed hooks 4 are 10-45 in shape⁰The angle of the flat beam is fixed at the end part of the flat beam 1 side by side, the other end of the flat beam 1 is provided with 3-4 pairs of encircling arms 2, each pair of encircling arms 2 forms an oval structure, the encircling arms 2 are symmetrically arranged at two sides of the flat beam 1, the encircling arms 2 at the two ends are provided with end teeth 3, the end teeth 3 are saw-toothed bulges, and the flat beam 1,The encircling arm 2 and the fixing hook 4 are of an integral structure and made of TiNi shape memory alloy.

The specific use method comprises the following steps: before operation, the affected bone is reset, then the memory alloy rib bone fracture plate of the utility model is soaked in sterile saline at 0-5 ℃, and the encircling arms 2 of the memory alloy rib bone fracture plate are sequentially unfolded by using medical unfolding pliers and are larger than the diameter of the affected bone; the expanded memory alloy rib bone fracture plate is arranged at the affected bone (as shown in figure 7), after the expanded memory alloy rib bone fracture plate is adjusted to a proper position, the encircling arm 2 is hot-compressed by gauze dipped with sterile saline water of 45 +/-5 ℃ for restoration, the affected bone is fixed, and meanwhile, the end teeth 3 on the encircling arm 2 are held on the affected bone to prevent the memory alloy rib bone fracture plate from moving axially.

Claims (7)

1. A memory alloy rib bone plate comprises a flat beam (1) with radian, and is characterized in that: the one end of flat crossbeam (1) is equipped with fixed hook (4), the other end of flat crossbeam (1) is equipped with many and to embracing arm (2) and every to embracing arm (2) and form oval structure, it all is equipped with end tooth (3) on embracing arm (2) that encircles arm (2) symmetry setting in the both sides of flat crossbeam (1) and be located both ends.

2. A memory alloy rib bone plate according to claim 1, wherein: the flat beam (1) is provided with a hollow hole (5).

3. The memory alloy rib bone plate according to claim 1 or 2, wherein: the fixed hooks (4) are two semicircular fixed hooks (4), and the two fixed hooks (4) are 10-45⁰Are fixed side by side at the ends of the flat beam (1).

4. A memory alloy rib bone plate according to claim 3, wherein: the flat beam (1), the encircling arm (2) and the fixing hook (4) are of an integrated structure and made of TiNi shape memory alloy.

5. A memory alloy rib bone plate according to claim 2, wherein: the hollow holes (5) are at least one of strip-shaped holes, oval holes and circular holes.

6. A memory alloy rib bone plate according to claim 1, wherein: the encircling arms (2) are 3-4 pairs.

7. A memory alloy rib bone plate according to claim 1, wherein: the end teeth (3) are saw-toothed protrusions.

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