CN204618379U - A kind of intramedullary pin of synthetism - Google Patents

Abstract

The utility model discloses an intramedullary nail for bone setting, which is made of titanium-nickel alloy and comprises: a head, a body and a tail; The cross-section is cap-shaped and connected with the arc transition of the body; the head, body and tail are integrated; during the operation, the fracture is reset and a hole is drilled in a fracture segment, and the head of the intramedullary nail is penetrated through the hole to the bone marrow cavity, finally fixed and bandaged, and after healing, use the intramedullary nail removal forceps to pull out the intramedullary nail; a kind of intramedullary nail for osteosynthesis described in the utility model has fewer protruding ends at the tail end, reducing the In order to avoid the pain caused by the stimulation of the patient's skin, and avoid the interference to the daily life of the patient caused by the long extension end of the traditional intramedullary nail, clinically use the intramedullary nail removal forceps to clamp the tail of the intramedullary nail outward. The nail removal operation can be completed conveniently, which greatly reduces the secondary trauma and pain of the patient and improves the quality of life of the patient.

Description

A kind of intramedullary nail for bone setting

technical field

The utility model relates to an intramedullary nail for bone setting in the orthopedics department of a hospital.

Background technique

In the existing clinical cases, the intramedullary nail that involves osteosynthesis and needs to be pulled out after healing usually adopts the intramedullary nail shown in Figure 1, which is made of titanium-nickel alloy, including: anterior segment 4, middle segment 5 and tail segment 6; The front section 4, the middle section 5 and the tail section 6 are integrated and in the same plane, the cross section is circular, and the front section 4 and the tail section are all round heads; the length of the extension end of the tail section 6 will be reserved for 10 during the operation. ~15mm, if it is greater than this length, then it will be cut short and bent with a nut 7 in the same cover.

The disadvantages are: the tail section needs to be shortened and bent during the operation, and the length of the extension end of the tail section 6 needs to be kept at 10-15 mm. If the extension length is less than this length, the intramedullary nail is prone to shift and it is difficult to obtain the nail in clinical surgery. The middle clamp cannot hold the protruding end; the bent protruding end of this length will interfere with the daily life of the patient, causing bumps and affecting the quality of life; shortening the intramedullary nail during the operation increases the complexity of the operation.

Utility model content

The technical problem mainly solved by the utility model is to provide an intramedullary nail for bone setting, which is convenient for clinical nail removal operation, and the protruding end will not cause interference and bumping of the patient, so as to improve the quality of life of the patient.

In order to solve the above technical problems, the technical problem mainly solved by the utility model is to provide a kind of intramedullary nail for osteosynthesis, which is made of titanium-nickel alloy, including: head, body and tail; The tail is connected into one body, which can be bent by hand and is elastic; the head is blunt conical with an arc bend, the body is cylindrical, and the tail is cap-shaped in section and transitions to the body with a circular arc Connected; the angle between the central axis of the head and the central axis of the body is 95°~135°; the cross section of the body is circular, with a diameter of ￠2~3.5mm; the central axes of the head, body and tail in the same plane.

The beneficial effects of the utility model are: it is convenient for the clinical nail removal operation, and the protruding end will not cause the patient to interfere and bump, and improve the quality of life of the patient; the provision of intramedullary nails of different lengths can avoid the trimming of the intramedullary nails in clinical operations, and can Reduce the complexity of surgery.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the intramedullary nail used for bone setting in the prior art;

Fig. 2 is a schematic structural view of an embodiment of the intramedullary nail for osteosynthesis described in the present invention;

Fig. 3 is an enlarged view of part A in Fig. 2;

Among them, 1. head; 2. body; 3. tail; 4. front section; 5. middle section; 6. tail section; 7. nut.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

As shown in Figure 2-3, the embodiment of the present utility model is an intramedullary nail for osteosynthesis, which is made of titanium-nickel alloy, including: the material is titanium-nickel alloy, including: head 1, body 2 and Tail 3; the head 1, body 2 and tail 3 are integrated into one body, which can be bent and elastic by hand; the head 1 is blunt conical with an arc bend, and the body 2 is cylindrical, The cross section of the tail part 3 is cap-shaped and connected to the body part 2 with a circular arc transition; the angle between the central axis of the head part 1 and the central axis of the body part 2 is 95 ° ~ 135 °; the cross section of the body part 2 is a circle shape, with a diameter of ￠2~3.5mm; the central axes of the head 1, body 2 and tail 3 are in the same plane.

The working process of the intramedullary nail for osteosynthesis described in the utility model is as follows:

In Figure 2-3, after the fracture is reduced during the operation, a hole is drilled in a fracture segment, and the head of the intramedullary nail is penetrated into the bone marrow cavity through the hole, and finally fixed and bandaged. After healing, the intramedullary nail is used to take out the forceps The intramedullary nail can be pulled out.

In the intramedullary nail for osteosynthesis described in the utility model, the cross section of the tail part 3 is cap-shaped and connected with the body part 2 by a circular arc transition, with fewer protruding ends, which reduces the tension on the patient's skin, and at the same time To avoid interference with the daily life of the patient due to the long protruding end of the traditional intramedullary nail, clinically use the intramedullary nail removal forceps to clamp the tail of the intramedullary nail and pull it out, and the nail removal operation can be completed conveniently, greatly It greatly reduces the secondary trauma and pain of patients, and improves the quality of life of patients; the provision of intramedullary nails of different lengths can avoid the trimming of intramedullary nails in clinical operations, and can reduce the complexity of operations.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (4)

1. An intramedullary nail for osteosynthesis, which is made of titanium-nickel alloy, comprising: a head (1), a body (2) and a tail (3); the head (1), body (2) It is integrated with the tail (3), can be bent by hand and is elastic; its characteristic is that the head (1) is blunt conical with an arc bend, the body (2) is cylindrical, and the The cross section of the tail (3) is cap-shaped and connected with the body (2) by a circular arc transition. 2 . The intramedullary nail for osteosynthesis according to claim 1 , wherein the angle between the central axis of the head ( 1 ) and the central axis of the body ( 2 ) is 95°-135°. 3. The intramedullary nail for osteosynthesis according to claim 1, characterized in that: the cross section of the body (2) is circular, with a diameter of ￠2~3.5mm. 4. The intramedullary nail for osteosynthesis according to claim 1, characterized in that: the central axes of the head (1), body (2) and tail (3) are in the same plane.