阅读说明：本技术 一种可注射骨水泥的中空u形钉装置 (Hollow U-shaped nail device capable of injecting bone cement ) 是由 姜言舟 苑光效 刘小敏 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种可注射骨水泥的中空U形钉装置,涉及骨科手术器械领域,包括第二空心螺钉,第二空心螺钉上套装有柔性挡环,柔性挡环上端设置有连接杆,连接杆上端贯穿空心管底部,且延伸至空心管内部,连接杆上表面固定有压板,压板上表面设置有弹簧以及连接管,弹簧套装在连接管上,压板上侧设置有卡环,弹簧固定在卡环下表面,连接管内设置有T型杆,T型杆上端贯穿连接管以及空心管且延伸至空心管外侧,T型杆上端固定有限位杆,连接管上端设置有挡板以及托板,托板位于挡板下侧,T型杆上端固定有横杆,横杆左端贯穿空心管且延伸至空心管外侧。本发明防止骨水泥渗漏,提高治疗效果,便于循环利用,适应性强,使用效果好。(The invention discloses a hollow U-shaped nail device capable of injecting bone cement, and relates to the field of orthopedic surgery instruments. The invention prevents the bone cement from leaking, improves the treatment effect, is convenient for cyclic utilization, and has strong adaptability and good use effect.)

1. The hollow U-shaped nail device capable of injecting bone cement comprises a hollow tube (2), wherein a round tube (7) is arranged in the hollow tube (2), and is characterized in that a second hollow screw (10) is arranged at the lower end inside the round tube (7), a first hollow screw (1) is arranged on the upper surface of the second hollow screw (10), the upper end of the first hollow screw (1) penetrates through the hollow tube (2) and extends to the upper side of the hollow tube (2), a flexible retaining ring (9) is sleeved on the second hollow screw (10), a connecting rod (8) is arranged at the upper end of the flexible retaining ring (9), the upper end of the connecting rod (8) penetrates through the bottom of the hollow tube (2) and extends to the inside of the hollow tube (2), a pressing plate (15) is fixed on the upper surface of the connecting rod (8), a spring (14) and a connecting tube (12) are arranged on the upper surface, spring (14) suit is on connecting pipe (12), clamp plate (15) upside is provided with snap ring (13), spring (14) are fixed at snap ring (13) lower surface, be provided with T type pole (3) in connecting pipe (12), T type pole (3) upper end runs through connecting pipe (12) and hollow tube (2) and extends to the hollow tube (2) outside, T type pole (3) upper end is fixed with stopper pole (11), connecting pipe (12) upper end is provided with baffle (5) and layer board (6), layer board (6) are located baffle (5) downside, T type pole (3) upper end is fixed with horizontal pole (4), horizontal pole (4) left end runs through hollow tube (2) and extends to the hollow tube (2) outside.

2. Hollow staple device for injectable bone cement according to claim 1, characterized in that said hollow tube (2) is equipped with inclined slots on both sides, said inclined slots being inclined at an angle of 45 °.

3. An injectable bone cement hollow staple device according to claim 1, characterized in that said connecting tube (12) has a T-shaped slot at both ends of its circular side, said T-shaped rod (3) is placed in said T-shaped slot at its lower end, and said T-shaped rod (3) and said T-shaped slot are matched with each other.

4. The hollow U-shaped nail device for injecting bone cement according to claim 1, characterized in that the upper surface of the supporting plate (6) is provided with a square groove, and the size of the square groove is matched with that of the limiting rod (11).

5. The hollow U-shaped nail device for injecting bone cement according to claim 1, wherein a thread groove is formed on the inner annular side surface of the circular tube (7), a thread is formed on the outer annular side surface of the first hollow screw (1), the lower end of the first hollow screw (1) is detachably connected with the thread groove through the thread, a connector is fixed on the upper end of the first hollow screw (1), and the connector is matched with an external injector.

6. Hollow staple device for injectable bone cement according to claim 1, characterised in that said flexible baffle ring (9) is made of soft polyvinyl chloride for medical use, said flexible baffle ring (9) having a suction disc shape in cross section.

7. An injectable bone cement hollow staple device according to claim 1, characterised in that the lower end of said T-bar (3) has a diameter greater than the diameter of the connecting tube (12) and smaller than the diameter of the snap ring (13).

Technical Field

The invention relates to the field of orthopedic surgical instruments, in particular to a hollow U-shaped nail device capable of injecting bone cement.

Background

Spinal tumors or osteoporosis often cause compression fracture, pain, etc. of the vertebral body, which seriously affects the quality of life of the patient. Especially old patient, often coexists organic system disease, when a plurality of centrums compression fracture, lead to the centrum sagittal plane to warp, the adjacent centrum biomechanics changes, makes the probability greatly increased that adjacent centrum takes place the fracture, and the hollow U-shaped nail device that has now exists bone cement seepage and advances the spinal canal in the treatment process, and the injury is healthy, and present device is disposable at most, the wasting of resources, therefore we provide one kind and prevent the injectable hollow U-shaped nail device of bone cement seepage and solve above-mentioned problem.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a hollow staple device capable of injecting bone cement.

In order to achieve the purpose, the invention adopts the following technical scheme:

a hollow U-shaped nail device capable of injecting bone cement comprises a hollow tube, wherein a round tube is arranged in the hollow tube, a second hollow screw is arranged at the lower end in the round tube, a first hollow screw is arranged on the upper surface of the second hollow screw, the upper end of the first hollow screw penetrates through the hollow tube and extends to the upper side of the hollow tube, a flexible baffle ring is sleeved on the second hollow screw, a connecting rod is arranged at the upper end of the flexible baffle ring, the upper end of the connecting rod penetrates through the bottom of the hollow tube and extends into the hollow tube, a pressing plate is fixed on the upper surface of the connecting rod, a spring and a connecting tube are arranged on the upper surface of the pressing plate, a clamping ring is arranged on the upper side of the pressing plate, the spring is fixed on the lower surface of the clamping ring, a T-shaped rod is arranged in the connecting tube, the, the T-shaped rod upper end is fixed with a limiting rod, the upper end of the connecting pipe is provided with a baffle and a supporting plate, the supporting plate is located on the lower side of the baffle, the upper end of the T-shaped rod is fixed with a cross rod, and the left end of the cross rod penetrates through the hollow pipe and extends to the outer side of the hollow pipe.

Preferably, the two sides of the hollow pipe are both provided with chutes, and the inclination angle of each chute is 45 degrees.

Preferably, T-shaped grooves are formed in two ends of the annular side face of the connecting pipe, the lower end of the T-shaped rod is arranged in the T-shaped groove, and the T-shaped rod is matched with the T-shaped groove.

Preferably, the upper surface of the supporting plate is provided with a square groove, and the size of the square groove is matched with that of the limiting rod.

Preferably, the annular side processing has the thread groove in the pipe, the outer annular side processing of first hollow screw has the screw thread, the first hollow screw lower extreme can be dismantled with the thread groove through the screw thread and be connected, first hollow screw upper end is fixed with the connector, connector and outside syringe phase-match.

Preferably, the flexible baffle ring is made of medical soft polyvinyl chloride, and the cross section of the flexible baffle ring is in the shape of a sucking disc.

Preferably, the diameter of the lower end of the T-shaped rod is larger than that of the connecting pipe and smaller than that of the clamping ring.

The invention has the beneficial effects that: the invention is in butt joint with the round pipe through the first hollow screw, thereby being in butt joint with the second hollow screw, and further being convenient for being connected with an external injector.

The invention prevents the bone cement from leaking, improves the treatment effect, is convenient for cyclic utilization, and has strong adaptability and good use effect.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is an enlarged schematic view of the structure at a in the present invention.

Fig. 3 is a schematic perspective view of a connection tube according to the present invention.

FIG. 4 is a top view of the hollow tube of the present invention.

Fig. 5 is a top view of a pallet of the present invention.

Reference numbers in the figures: 1 first hollow screw, 2 hollow tubes, 3T-shaped rod, 4 cross rods, 5 baffle plates, 6 supporting plates, 7 round tubes, 8 connecting rods, 9 flexible baffle rings, 10 second hollow screws, 11 limiting rods, 12 connecting tubes, 13 clamping rings, 14 springs and 15 pressing plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a hollow U-shaped nail device for injecting bone cement, comprising a hollow tube 2, a circular tube 7 is arranged in the hollow tube 2, a second hollow screw 10 is arranged at the lower end of the interior of the circular tube 7, a first hollow screw 1 is arranged on the upper surface of the second hollow screw 10, the upper end of the first hollow screw 1 penetrates through the hollow tube 2 and extends to the upper side of the hollow tube 2, a flexible baffle ring 9 is sleeved on the second hollow screw 10, a connecting rod 8 is arranged at the upper end of the flexible baffle ring 9, the upper end of the connecting rod 8 penetrates through the bottom of the hollow tube 2 and extends to the interior of the hollow tube 2, a pressure plate 15 is fixed on the upper surface of the connecting rod 8, a spring 14 and a connecting tube 12 are arranged on the upper surface of the pressure plate 15, a snap ring 13 is arranged on the upper side of the pressure plate 15, the spring 14 is fixed on the lower surface of the snap, the stopper 11 is fixed with to 3 upper ends of T type pole, connecting pipe 12 upper ends are provided with baffle 5 and layer board 6, layer board 6 is located 5 downside of baffle, 3 upper ends of T type pole are fixed with horizontal pole 4, 4 left ends of horizontal pole run through hollow tube 2 and extend to the 2 outsides of hollow tube, dock with pipe 7 through first hollow screw 1, thereby dock with second hollow screw 10, and then be convenient for be connected with outside syringe, when injecting bone cement through second hollow screw 10, make stopper 11 break away from the spacing of layer board 6 through rotating T type pole 3, and make spring 14 kick-back, pop out speed through horizontal pole 4 control spring 14, thereby drive clamp plate 15 and connecting rod 8 and make flexible retaining ring 9 cover injection department, and then realize preventing the bone cement seepage, excellent in use effect.

The chute has been all seted up to 2 both sides of hollow tube, and chute inclination is 45, and this design is convenient for horizontal pole 4 to rotate to the chute in.

T type groove has all been seted up at connecting pipe 12 annular side both ends, and 3 lower extremes of T type pole are settled in T type inslot, and T type pole 3 matches mutually with T type groove, and this design is convenient for stimulate connecting pipe 12 and remove.

The square groove has been seted up to layer board 6 upper surface, and the square groove size and gag lever post 11 phase-match, and this design has realized that gag lever post 11 can pass the square groove of layer board 6 upper surface.

Annular side processing has the thread groove in the pipe 7, and the outer annular side processing of first cannulated screw 1 has the screw thread, and 1 lower extreme of first cannulated screw can be dismantled with the thread groove through the screw thread and be connected, and 1 upper end of first cannulated screw is fixed with the connector, and the connector is convenient for assemble first cannulated screw 1 with outside syringe phase-match, this design.

The flexible baffle ring 9 is made of medical soft polyvinyl chloride, the cross section of the flexible baffle ring 9 is in the shape of a sucking disc, and the design is convenient for adapting to bone joints at different positions of a body.

The diameter of the lower end of the T-shaped rod 3 is larger than that of the connecting pipe 12 and smaller than that of the clamping ring 13, and the design realizes that the T-shaped rod 3 can drive the connecting pipe 12 to penetrate through the clamping ring 13.

The working principle is as follows: when the device is used, a user firstly butts a first hollow screw 1 with a second hollow screw 10 and then butts an external injector, then the user rotates a cross rod 4 to a chute, a limiting rod 11 is rotated to a square groove on the surface of a supporting plate 6, meanwhile, the lower end of a T-shaped rod 3 also enters a vertical groove of the T-shaped groove, a spring 14 rebounds and moves a pressing plate 15 downwards and simultaneously drives a connecting pipe 12 to move downwards, a connecting rod 8 moves downwards to drive a flexible blocking ring 9 to cover an injection port, thereby preventing bone cement from leaking, after the bone cement is formed, the user extracts the device, then the T-shaped rod 3 is pulled upwards through the cross rod 4, the connecting pipe 12 is driven to move upwards, the spring 14 is compressed by the pressing plate, then the T-shaped rod 3 is rotated, the limiting rod 11 limits and fixes the T-shaped rod 3, and the T-shaped rod 3 is used for the next time after cleaning, sterilizing and disinfecting. The invention prevents the bone cement from leaking, improves the treatment effect, is convenient for cyclic utilization, and has strong adaptability and good use effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.