CN202637035U

CN202637035U - Vertebral reamer

Info

Publication number: CN202637035U
Application number: CN 201220265648
Authority: CN
Inventors: 周伟; 徐凯; 王维
Original assignee: CHANGZHOU BAILONG MINIMALLY INVASIVE MEDICAL DEVICES TECHNOLOGY CO LTD
Current assignee: CHANGZHOU BAILONG MINIMALLY INVASIVE MEDICAL DEVICES TECHNOLOGY CO LTD
Priority date: 2012-06-07
Filing date: 2012-06-07
Publication date: 2013-01-02
Anticipated expiration: 2022-06-07

Abstract

The utility model discloses a vertebral reamer. The vertebral reamer comprises a left half handle and a right half handle, wherein the left half handle and the right half handle are fixedly connected; a sleeve is fixed in the left and right half handles; a core pin is inserted in the sleeve; one end of the core pin is in screwed connection with a knob; a connector is arranged on the head part of the sleeve, and hinged with a blade; and the blade is connected with the core pin through a core pin connecting rod. According to the vertebral reamer, the inner wall of a working passage can be flattened, or the diameter of the working passage can be enlarged.

Description

The vertebra reamer

Technical field

This utility model relates to a kind of vertebra reamer, belongs to the medical apparatus and instruments apparatus.

Background technology

At present, compression fracture of vertabral body is the modal complication of sufferers of osteoporosis face, and open operation treatment wound in the past is large, and complication is many.And percutaneous vertebroplasty (PVP) and percutaneous balloon kyphoplasty (PKP) are rapidly novel micro-wound surgical operations of spinal surgery development in recent years, directly inject or the implants such as bone cement, artificial bone of reinjecting by balloon expandable first in compressed vertebral by percutaneous, thereby strengthen the mechanical stability of pathological changes vertebral body, clinical practice is the verified effective therapeutic effect of its reliable and stable, fast Lai, and few intercurrent disease.And the vertebra reamer is in micro-wound surgical operation, for what use behind the rear formation service aisle that punctures, behind the vertebra perforator puncture good berth passage, usually owing to the narrow and small operation technique that is unfavorable for of service aisle, has increased the difficulty of operation.

Summary of the invention

The purpose of this utility model provide a kind of can smooth service aisle inwall or enlarge the vertebra reamer of service aisle diameter.

The technical scheme that realizes this utility model purpose is: a kind of vertebra reamer, comprise left half handle and right half handle, left half handle is fixedly connected with right half handle, be fixed with sleeve pipe in left half handle and right half handle, be fitted with core bar in the sleeve pipe, an end of core bar has been threaded connection knob, and the head of sleeve pipe has joint, be hinged with blade on the joint, blade is connected with core bar by the core bar extension bar.

Further, the head of described blade is the flat sword head of lamellar.

In a nearlyer step, the head of described blade is coniform sword head, and has annular groove between the sword body of sword head and blade.

After having adopted technique scheme, utilize the common out-of-flatness of inwall of the service aisle after the vertebra perforator punctures, or service aisle does not reach required diameter, just can utilize this utility model to pass to stay the sleeve pipe of the vertebra perforator in the service aisle, the blade of head is stretched out this sleeve pipe, reach needed angle by rotary knob, rotation vertebra reamer carries out smooth to service aisle or enlarges service aisle; The flat sword head of lamellar is sharper when rotating, and has reduced operating time; Coniform sword head can produce broken bone bits, makes the service aisle of vertebra smoother.

Description of drawings

Fig. 1 is the structural representation of the first structure of vertebra reamer of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the structural representation of the second structure of vertebra reamer of the present utility model;

Fig. 4 is the B-B cutaway view Amplified image of Fig. 2;

Fig. 5 is the D section enlarged drawing of Fig. 3;

Fig. 6 is the C-C cutaway view of Fig. 1 and Fig. 3.

The specific embodiment

Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail this utility model according to specific embodiment also by reference to the accompanying drawings,

Embodiment one

Shown in Fig. 1,2,6, a kind of vertebra reamer, comprise left half handle 1 and right half handle 2, left half handle 1 is fixedly connected with right half handle 2, is fixed with sleeve pipe 3 in left half handle 1 and right half handle 2, is fitted with core bar 4 in the sleeve pipe 3, one end of core bar 4 has been threaded connection knob 5, the head of sleeve pipe 3 has joint 3-1, is hinged with blade 6 on the joint 3-1, and blade 6 is connected with core bar 4 by core bar extension bar 7.The head of blade 6 is the flat sword head of lamellar.

Embodiment two

Shown in Fig. 3 ~ 6, a kind of vertebra reamer, comprise left half handle 1 and right half handle 2, left half handle 1 is fixedly connected with right half handle 2, is fixed with sleeve pipe 3 in left half handle 1 and right half handle 2, is fitted with core bar 4 in the sleeve pipe 3, one end of core bar 4 has been threaded connection knob 5, the head of sleeve pipe 3 has joint 3-1, is hinged with blade 6 on the joint 3-1, and blade 6 is connected with core bar 4 by core bar extension bar 7.The head of blade 6 is coniform sword head, and has annular groove 6-3 between the sword body 6-2 of sword head 6-1 and blade 6.

Operation principle of the present utility model is as follows:

Utilize the common out-of-flatness of inwall of the service aisle after the vertebra perforator punctures, or service aisle does not reach required diameter, just can utilize this utility model to pass to stay the sleeve pipe of the vertebra perforator in the service aisle, the blade 6 of head is stretched out this sleeve pipe, reach needed angle by rotary knob, rotation vertebra reamer carries out smooth to service aisle or enlarges service aisle; The flat sword head of lamellar is sharper when rotating, and has reduced operating time; Circular cone sword head can produce broken bone bits, makes the service aisle of vertebra smoother.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to this utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. vertebra reamer, comprise left half handle (1) and right half handle (2), left half handle (1) is fixedly connected with right half handle (2), be fixed with sleeve pipe (3) in left half handle (1) and right half handle (2), be fitted with core bar (4) in the sleeve pipe (3), one end of core bar (4) has been threaded connection knob (5), it is characterized in that: the head of sleeve pipe (3) has joint (3-1), be hinged with blade (6) on the joint (3-1), blade (6) is connected with core bar (4) by core bar extension bar (7).

2. vertebra reamer according to claim 1, it is characterized in that: the head of described blade (6) is the flat sword head of lamellar.

3. vertebra reamer according to claim 1, it is characterized in that: the head of described blade (6) is coniform sword head, and has annular groove (6-3) between the sword body (6-2) of sword head (6-1) and blade (6).