CN207745178U

CN207745178U - Structure for treating bone defect

Info

Publication number: CN207745178U
Application number: CN201720629384.2U
Authority: CN
Inventors: 贾斌
Original assignee: Pingyue County Shenzhen Orthopedics Department Hospital
Current assignee: Pingyue County Shenzhen Orthopedics Department Hospital
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2018-08-21
Anticipated expiration: 2027-05-31

Abstract

The utility model discloses a kind of structures for treating bone defect, including at least two draw points, telescopic device, and it is inserted into the intramedullary needle in bone along bone axis direction, intramedullary needle is equipped with sliding slot along its axis direction, the both ends of telescopic device are respectively fixed with draw point, and the free end of wherein at least one draw point is slided in the sliding slot of intramedullary needle.Its advantages of, is slided in the sliding slot of intramedullary needle due to draw point, and draw point moving direction can be accurately controlled；Two draw points simultaneously, telescopic device, intramedullary needle and two draw points form the fixed frame of annular, therefore play effect that is fixed and stablizing to fracture site.

Description

Structure for treating bone defect

Technical field

The utility model is related to the field of medical instrument technology, especially a kind of structures for treating bone defect.

Background technology

At present to the sclerite after osteotomy, traction transport is generally carried out using external fixing rack.There are one for this mode of transport A little shortcomings such as can not accurately control fracture Block direction, and unstable to fracture fixation, external fixing rack needle track is easy infection etc. Problem.

Utility model content

The purpose of this utility model is to solve the deficiencies in the prior art, provides a kind of structure for treating bone defect.

A kind of technical solution of the utility model：

A kind of structure for treating bone defect, including at least two draw points, telescopic device, and along bone axis side To the intramedullary needle being inserted into bone, intramedullary needle is equipped with sliding slot along its axis direction, and the both ends of telescopic device are respectively fixed with draw point, It is slided in the sliding slot of intramedullary needle the free end of wherein at least one draw point.

A kind of preferred embodiment is that the both ends of intramedullary needle are respectively equipped with lock hole, and intramedullary needle, which passes through lock hole, to be fixed with bone and connect It connects.

A kind of preferred embodiment be telescopic device include set female screwed pipe, and set on screwed pipe both ends and with screwed pipe spiral shell The screw rod of line connection, the screw rod at screwed pipe both ends have been respectively fixedly connected with draw point.

A kind of preferred embodiment is that the quantity of draw point is 2, wherein the fixing end of a draw point and the screw rod of screwed pipe one end are solid Fixed connection, the free end of draw point are slided in the sliding slot of intramedullary needle, the screw rod of the fixing end and the screwed pipe other end of another draw point It is fixedly connected, the free end of draw point is fixedly connected in sliding in the sliding slot of intramedullary needle or with intramedullary needle.

In summary technical solution, the beneficial effects of the utility model：Since draw point slides in the sliding slot of intramedullary needle, Therefore draw point moving direction can be accurately controlled；Two draw points simultaneously, telescopic device, intramedullary needle and two draw points form annular Fixed frame, therefore effect that is fixed and stablizing is played to fracture site.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model It can be clearer and more comprehensible with advantage, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.

Description of the drawings

Fig. 1 is the schematic diagram of the utility model；

Fig. 2 is the schematic diagram of intramedullary needle in the utility model.

Specific implementation mode

As depicted in figs. 1 and 2, a kind of structure for treating bone defect, including at least two draw points 3, telescopic device 4, And it is inserted into the intramedullary needle 5 in bone 10 along 10 axis direction of bone, intramedullary needle 5 is equipped with sliding slot 8 along its axis direction, stretches The both ends of device 4 are respectively fixed with draw point 3, and the free end of wherein at least one draw point 3 is in sliding in the sliding slot 8 of intramedullary needle 5.

As depicted in figs. 1 and 2, bone 10 includes carrying bone block 1, osteotomy line 2 and bony defect area successively in the axial direction, Intramedullary needle 5 is through bone block 1, osteotomy line 2 and bony defect area 11 is carried, wherein the fixing end of a draw point 3 and telescopic device 4 One end is fixedly connected, and the free end of draw point 3, which is inserted into, carries in bone block 1 and in sliding, another draw point 3 in the sliding slot of intramedullary needle 58 Fixing end be fixedly connected with the other end of telescopic device 4, the free end of draw point 3 is inserted into bone 10 and is fixed in intramedullary needle 5 Connection.When telescopic device 4 shortens, telescopic device 4 drives sliding slot 8 interior sliding of the draw point 3 along intramedullary needle 5, while 3 band of draw point Dynamic bone block 1 of carrying is moved to bony defect area 11, can be accurate since draw point 3 is along sliding in the sliding slot 8 of intramedullary needle 5 Control 3 moving direction of draw point；Two draw points 3 simultaneously, telescopic device 4, intramedullary needle 5 and two draw points 3 form the fixed frame of annular, Therefore fixed function is played to fracture site.

Specifically, as depicted in figs. 1 and 2, the both ends of intramedullary needle 5 are respectively equipped with lock hole 9, and intramedullary needle 5 passes through lock hole 9 It is fixedly connected with bone 10.

As depicted in figs. 1 and 2, telescopic device 4 includes setting female screwed pipe 7, and be set to 7 both ends of screwed pipe and and spiral shell The screw rod 6 that pipe 7 is threadedly coupled, the screw rod 6 at 7 both ends of screwed pipe have been respectively fixedly connected with draw point 3.Rotating screwed pipe 7 can be with adjusting screw rod 6 Elongation, therefore can control the sliding along the sliding slot 8 of intramedullary needle 5 of draw point 3 by rotating screwed pipe 7.

As depicted in figs. 1 and 2, the quantity of draw point 3 is 2, wherein the spiral shell of the fixing end of a draw point 3 and 7 one end of screwed pipe Bar 6 is fixedly connected, and in sliding in the sliding slot 8 of intramedullary needle 5, the fixing end and screwed pipe 7 of another draw point 3 are another for the free end of draw point 3 The screw rod 6 of one end is fixedly connected, and the free end of draw point 3 is fixedly connected in sliding in the sliding slot 8 of intramedullary needle 5 or with intramedullary needle 5, i.e., The free end of at least one draw point 3 is in sliding in the sliding slot 8 of intramedullary needle 5.

In other embodiments, the quantity of draw point 3 can also be more.

It is specific embodiment of the present utility model above, it is noted that for those skilled in the art For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications It is considered as the scope of protection of the utility model.

Claims

1. a kind of for treating the structure of bone defect, which is characterized in that including at least two draw points, telescopic device, and along Bone axis direction is inserted into the intramedullary needle in bone, and the intramedullary needle is equipped with sliding slot along its axis direction, the telescopic device Both ends are respectively fixed with draw point, and the free end of wherein at least one draw point is slided in the sliding slot of intramedullary needle.

2. the structure according to claim 1 for treating bone defect, which is characterized in that distinguish at the both ends of the intramedullary needle Equipped with lock hole, the intramedullary needle is fixedly connected by lock hole with bone.

3. according to claim 1 or 2 for treating the structure of bone defect, which is characterized in that the telescopic device includes If female screwed pipe, and the screw rod that is threadedly coupled set on screwed pipe both ends and with screwed pipe, the screw rod at screwed pipe both ends is solid respectively Surely it is connected with draw point.

4. the structure according to claim 3 for treating bone defect, which is characterized in that the quantity of the draw point is 2, The fixing end of wherein one draw point is fixedly connected with the screw rod of screwed pipe one end, and the free end of draw point is in sliding in the sliding slot of intramedullary needle Dynamic, the fixing end of another draw point is fixedly connected with the screw rod of the screwed pipe other end, and the free end of draw point is in the sliding slot of intramedullary needle Sliding is fixedly connected with intramedullary needle.