CN201182641Y

CN201182641Y - Boosting device for filling bone cement in percutaneous vertebral plastic operation

Info

Publication number: CN201182641Y
Application number: CNU2008200605292U
Authority: CN
Inventors: 韩寿彭
Original assignee: Shanghai Kinetic Medical Co Ltd
Current assignee: Shanghai Kinetic Medical Co Ltd
Priority date: 2008-04-22
Filing date: 2008-04-22
Publication date: 2009-01-21
Anticipated expiration: 2018-04-22

Abstract

The utility model discloses a boosting device used for filling bone cement in the via-skin vertebral body forming operation; the boosting device is used for filling bone cement with an injector in the via-skin vertebral body forming operation and comprises a handle, a boosting screw rod, a boosting nut; mutually-coupled threads are respectively formed on the periphery of the boosting screw rod and the inner margin of the boosting nut; the boosting nut is fixed on the boosting screw rod; the upper end of the boosting screw rod is fixed on the handle; the lower end can be fixedly connected with the injector piston; the boosting nut is matched and fixedly connected with the injector needle cylinder through the outer margin. Combined with the common injector, the boosting device has convenient operation in filling cement in the via-skin vertebral body forming operation.

Description

Be used for the operation of percutaneous vertebral plasty and fill the assist device of bone cement

Technical field

The utility model relates to a kind of medical apparatus, especially relate to a kind of assist device that bone cement is filled in the operation of percutaneous vertebral plasty that is used for.

Background technology

Vertebral fracture can cause continuing the dysfunction pain of several months, this pain can make patient disability and motor capacity, can promptly cause fatal complication such as the formation of forfeiture, pulmonary atelectasis and pneumonia, deep venous thrombosis of limb function and pulmonary infarction, compression fracture of vertabral body also was the reason that independent living ability could not be taken care of oneself and lose to a lot of life of elderly person in the past.Use a large amount of Drug therapys, usually cause poisonous side effect of medicine and drug dependence, the patient scarcely accepts maybe can not tolerate surgical operation therapy.Adopt the percutaneous vertebroplasty to treat vertebral compression fracture at present, it is that pedicle is punctured to fractured vertebral body under C arm power traction is led, and injects fixedly vertebral body of bone cement by puncture needle in vertebral body then.

But the percutaneous vertebroplasty injects bone cement by puncture needle in vertebral body, needs bigger pressure during owing to the injection bone cement, and inconvenient operation damages patient easily.

The utility model content

The technical problems to be solved in the utility model provides a kind of assist device that bone cement is filled in the operation of percutaneous vertebral plasty that is used for, and uses this device to fill bone cement in the operation of percutaneous vertebral plasty, and is easy to operate.

For solving the problems of the technologies described above, fill the assist device of bone cement in the percutaneous vertebral plasty operation of the present utility model, be used in percutaneous vertebral plasty operation with the syringe filling bone cement that combines, it is characterized in that, comprise handle, boosting screw rod, boosting nut, boosting screw rod periphery and boosting nut inner edge have the screw thread that intercouples, boosting nut spiral shell is fixed on the boosting screw rod, boosting screw rod upper end is fixed on the handle, the lower end can be fixed together with syringe piston, and the boosting nut can be fixedly connected with injector syringe by outer rim.

The assist device that is used for filling bone cement of the present utility model in the operation of percutaneous vertebral plasty, combine with common syringe, by the rotation augering screw, advancing mode with spiral shell is injected into the bone cement in the injector syringe in the vertebral body, when when injecting bone cement, needing bigger pressure, assurance bone cement that still can be stable steadily injects vertebral body, and is easy to operate, avoided in the operating process patient being damaged.

Description of drawings

Fig. 1 is the assist device one embodiment front view that bone cement is filled in the operation of percutaneous vertebral plasty that is used for of the present utility model;

Fig. 2 is the assist device one embodiment handle view that bone cement is filled in the operation of percutaneous vertebral plasty that is used for of the present utility model;

Fig. 3 is the assist device one embodiment boosting screw rod view that bone cement is filled in the operation of percutaneous vertebral plasty that is used for of the present utility model;

Fig. 4 assist device one embodiment boosting nut view that is used for percutaneous vertebral plasty operation filling bone cement of the present utility model;

Fig. 5 is a kind of syringe view with 6% female Luer;

Fig. 6 is that the assist device one embodiment boosting screw rod lower end of percutaneous vertebral plasty operation filling bone cement that is used for of the present utility model is with the fixedly connected sketch map of syringe piston;

Fig. 7 of the present utility modelly is used for assist device one embodiment boosting nut that percutaneous vertebral plasty operation fills bone cement by outer rim and the injector syringe sketch map that is fixedly connected;

Fig. 8 be among the embodiment injector syringe front end by female Luer with bone cement tucker connection diagram.

The specific embodiment

Below in conjunction with the drawings and the specific embodiments this utility model is described in further detail.

Of the present utility modelly be used for assist device one embodiment that percutaneous vertebral plasty operation fills bone cement as shown in Figure 1, comprise handle 11, boosting screw rod 12, boosting nut 13, boosting screw rod 12 peripheries and boosting nut 13 inner edges have the screw thread that intercouples, boosting nut 13 spiral shells are fixed on the boosting screw rod 12, boosting screw rod 12 upper ends are fixed on the handle 11, boosting screw rod lower end 16 may be fixed together by syringe piston, and boosting nut 3 can be fixedly connected with injector syringe by outer rim.

One embodiment such as Fig. 2, Fig. 3, shown in Figure 4, the circular hole of one ccontaining boosting screw rod, 12 upper ends is arranged at handle 11 bottoms, sidepiece that should circular hole had to join bore the latch jack, cylindrical boosting screw rod 12 upper ends also have to join bores latch jack 15, insert the circular hole of handle 11 bottoms and make two to join that to bore the latch jack corresponding pushing away screw rod 12 upper ends, bore latch 14 handle 11 is fixed together with boosting screw rod 12 joining to bore to insert in the latch jack to join; Syringe such as Fig. 5 of a kind of 0.7*32 with 6% female Luer, shown in Figure 6, one plunger accommodation space is arranged at syringe piston 21 tops, plunger accommodation space upper end is a circular bayonet socket, adapt with these syringe piston 21 tops, boosting screw rod lower end 16 is provided with a circular draw-in groove 162, draw-in groove 162 lower ends are a stopper head 161 that is complementary with syringe piston 21 top plunger accommodation spaces, stopper head 161 can adopt the rubber elastomeric material, thereby conveniently to insert syringe piston 21 top plunger accommodation spaces the boosting screw rod of assist device of the present utility model is fixed together with syringe piston; One oval-shaped outer rim 22 is arranged at the injector syringe top, boosting nut 13 peripheries are provided with draw-in groove 131, as Fig. 4, shown in Figure 7, the draw-in groove 131 that snaps in boosting nut 13 peripheries by the outer rim 22 with the injector syringe top makes the boosting nut with the injector syringe secure bond.The head 23 of syringe is 6% female Luer.

This utility model is used for the assist device that bone cement is filled in percutaneous vertebral plasty operation, itself and the combinations of syringe formation bone cement filling device with 6% female Luer of 0.7*32.Its using method is as follows:

The first step, the configuration bone cement, and the bone cement colloid for preparing is poured in the syringe with 6% female Luer (as shown in Figure 8) syringe of 0.7*32;

In second step, booster cooperates with syringe;

Syringe piston (as Fig. 5, shown in Figure 6) can be entangled in boosting screw rod 12 lower ends 16, and the draw-in groove 131 that snaps in boosting nut 13 peripheries by the outer rim 22 with the injector syringe top makes the boosting nut with injector syringe secure bond (as Fig. 4, shown in Figure 7).

In the 3rd step, bone cement injects vertebral body;

The assist device that assembles is connected (as shown in Figure 8) with 6% female Luer with a bone cement tucker and tightens, thereby the handle 11 of rotation assist device is extruded the air in the pipe in syringe and the bone cement tucker.Thereafter,, the bone cement in the syringe is injected vertebral body, can read corresponding bone cement implantation dosage by the scale that shows on the syringe simultaneously by the handle 11 that rotates assist device with Intrapyramidal appointed part in the other end insertion human body of bone cement tucker.

Claims

1, a kind of assist device that is used for percutaneous vertebral plasty operation filling bone cement, be used in percutaneous vertebral plasty operation with the syringe filling bone cement that combines, it is characterized in that, comprise handle, boosting screw rod, boosting nut, boosting screw rod periphery and boosting nut inner edge have the screw thread that intercouples, boosting nut spiral shell is fixed on the boosting screw rod, boosting screw rod upper end is fixed on the handle, the lower end can be fixed together with syringe piston, and the boosting nut can be fixedly connected with injector syringe by outer rim.

2, the assist device that is used for percutaneous vertebral plasty operation filling bone cement according to claim 1 is characterized in that boosting screw rod lower end is provided with a circular draw-in groove, and the draw-in groove lower end is a stopper head.

3, the assist device that is used for percutaneous vertebral plasty operation filling bone cement according to claim 1 and 2 is characterized in that the boosting nut circumference is provided with draw-in groove.

4, the assist device that is used for percutaneous vertebral plasty operation filling bone cement according to claim 1, it is characterized in that, the circular hole of one ccontaining boosting screw rod upper end is arranged at the handle bottom, sidepiece that should circular hole had to join bore the latch jack, cylindrical boosting screw rod upper end also has to join bores the latch jack, insert the circular hole of handle bottom and make two to join that to bore the latch jack corresponding pushing away screw rod upper end, bore latch handle is fixed together with the boosting screw rod joining to bore to insert in the latch jack to join.