CN203693715U

CN203693715U - Improved bone cement filler

Info

Publication number: CN203693715U
Application number: CN201320751295.7U
Authority: CN
Inventors: 唐海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2014-07-09
Anticipated expiration: 2023-11-26

Abstract

An improved bone cement filler comprises a push rod (2) and a casing pipe (1), wherein the push rod (2) can be movably inserted into the casing pipe (1); a pushing handle (21) is arranged at the tail end of the push rod (2); a grab handle (11) is arranged at the tail end of the casing pipe (1), and a cutting edge is arranged at the front end of the casing pipe (1) and adopts a bevel connection structure; the improved bone cement filler is characterized in that the cutting edge at the front end of the casing pipe (1) is arranged at an angle (Beta) of 10-30 degrees; a pipe section (B) from the front end surface of the push rod (2) to the top end of the casing pipe (1) is a bent pipe section. The improved bone cement filler has the advantages as follows: the injection direction of the bone cement can be effectively controlled, the purposes of easiness in puncturing and difficulty in thrusting the vertebral body can be achieved, the pushing injection length can be effectively controlled, the injury caused by puncturing is reduced, operation time is saved, equipment consumption is reduced, operation cost is greatly lowered, and X-ray exposure time of a patient and a surgeon are greatly shortened.

Description

A kind of improved bone cement tucker

Technical field

This utility model relates to surgical instruments and device, relates in particular to device and the special equipment thereof in treatment bone or joint.

Background technology

At present, in to the treatment of the diseases such as osteoporotic vertebral fracture (OVCF)/myeloma, molten bone spinal metastasis, spinal column bone does not connect, extensively adopt and there is the percutaneous vertebroplasty (percutaneous vertebroplasty, PVP) that wound is little, recover the advantage such as fast, evident in efficacy, complication is little.Percutaneous vertebroplasty is a kind of non-blood vessel interventional therapy operation under radioactivity is image-guided, and this operation, by percutaneous puncture, is expelled to bone cement in diseased vertebral body, stablizes vertebral body, thereby reaches the object for the treatment of.Its injecting apparatus using is called bone cement tucker, and described bone cement tucker comprises push rod and sleeve pipe, and push rod inserts in sleeve pipe movably, and the tail end of push rod pushes away handle, and the tail end of sleeve pipe has lever, front end to have cutting edge, and this cutting edge is inclined opening structure.The bone cement tucker of prior art is because sleeve pipe is straight-tube shape, can only be by bone cement injection to the front of sleeve and the injection direction of uncontrollable bone cement, and the sword blade angle in sleeve pipe front is imprecise, sometimes be difficult for too greatly penetrating into, the sometimes too little easy perverse vertebral body of wearing, affect surgical effect, this is its shortcoming.

Summary of the invention

For the shortcoming of prior art, the purpose of this utility model is to provide a kind of and injects in controlling bone cement the improved bone cement tucker that moves towards and have better blade angle.

This utility model solves the technical scheme that its technical problem adopts: a kind of improved bone cement tucker is provided, comprise push rod and sleeve pipe, push rod inserts in sleeve pipe movably, the tail end of push rod pushes away handle, the tail end of sleeve pipe has lever, front end to have cutting edge, this cutting edge is inclined opening structure, it is characterized in that: the blade angle of described sleeve pipe front end is between 10 ~ 30 degree; Sleeve pipe pipeline section to himself tip in push rod front end face place is one section of bending pipeline section.

Described blade angle means the angle of sleeve pipe front end cutting edge inclined-plane and sleeve pipe longitudinal axis.

The pipeline section of described bending can be arc-shaped bend pipeline section, and the angle of the line of this section of circular arc two-end-point and sleeve pipe longitudinal axis can be 30 ~ 50 degree.

Blade angle had both been easy to penetrate between 10 ~ 30 degree, was not easy again the perverse vertebral body of wearing.Prove a preferred angle through clinical use.

Because sleeve pipe front end has bending.Adjust sleeve pipe 360 degree and rotate, its front end cutting edge can be noted the orientation to hope by the content in sleeve pipe, can control the injection direction of bone cement.

Further, bone cement tucker of the present utility model can comprise stop, and described stop is arranged in push rod and pushes away between handle and sleeve pipe lever, is placed on push rod.Can effectively control and inject length like this, prevent from injecting and excessively cause damage.

The beneficial effects of the utility model are: can effectively control bone cement injection direction, and can reach and be both easy to penetrate into, be not easy again the perverse vertebral body of wearing.And can effectively control and inject length.Reduce the damage of puncture, save operating time and equipment consumption, greatly reduce operation cost and patient, patient's x-ray open-assembly time.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model will be further described.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is sleeve pipe 1 surface structure schematic diagram of the present utility model.

Fig. 3 is the second example structure schematic diagram of this utility model with stop.

In figure: 1 is that sleeve pipe, 2 is that push rod, 3 is stop.

The specific embodiment

Referring to accompanying drawing, a kind of improved bone cement tucker of this utility model, comprise push rod 2 and sleeve pipe 1, push rod 2 inserts in sleeve pipe 1 movably, the tail end of push rod 2 pushes away handle 21, the tail end of sleeve pipe 1 has lever 11, front end to have cutting edge, and this cutting edge is inclined opening structure, it is characterized in that: the blade angle β of described sleeve pipe 1 front end is between 10 ~ 30 degree; Sleeve pipe 1 pipeline section B to himself tip in push rod 2 front end face places is one section of bending pipeline section.

Described blade angle means the angle of sleeve pipe front end cutting edge inclined-plane A and sleeve pipe longitudinal axis.

In preferred embodiment of the present utility model:

The pipeline section B of described bending is arc-shaped bend pipeline section, and the angle of the line of this section of circular arc two-end-point and sleeve pipe longitudinal axis is 30 ~ 50 degree.

Described basil β is 15 degree.

The line of described arc-shaped bend pipeline section B two-end-point and the angle of sleeve pipe longitudinal axis are 40 degree.

Further, the second embodiment of the present utility model also includes stop 3, and described stop 3 is arranged in push rod and pushes away between handle 21 and sleeve pipe lever 11, is placed on push rod 2.

Claims

1. an improved bone cement tucker, comprise push rod (2) and sleeve pipe (1), push rod (2) inserts in sleeve pipe (1) movably, the tail end of push rod (2) pushes away handle (21), the tail end of sleeve pipe (1) has lever (11), front end to have cutting edge, this cutting edge is inclined opening structure, it is characterized in that: the blade angle (β) of described sleeve pipe (1) front end is between 10 ~ 30 degree; Sleeve pipe (1) pipeline section (B) to himself tip in push rod (2) front end face place is one section of bending pipeline section; The pipeline section (B) of described bending is arc-shaped bend pipeline section, and the angle of the line of this section of circular arc two-end-point and sleeve pipe longitudinal axis is 30 ~ 50 degree.

2. the improved bone cement tucker of one according to claim 1, is characterized in that: described blade angle (β) is 15 degree.

3. the improved bone cement tucker of one according to claim 2, is characterized in that: the line of described arc-shaped bend pipeline section (B) two-end-point and the angle of sleeve pipe longitudinal axis are 40 degree.

4. according to the improved bone cement tucker of one described in claim 1 or 2 or 3, it is characterized in that: also comprise stop (3), described stop (3) is arranged in push rod and pushes away between handle (21) and sleeve pipe lever (11), is placed on push rod (2).