CN217366046U

CN217366046U - Balanced bone cement filling device

Info

Publication number: CN217366046U
Application number: CN202220702837.0U
Authority: CN
Inventors: 王斌; 车佳能; 邵杰; 李刚; 邱贵兴
Original assignee: Zhejiang Jiayou Medical Instrument Co ltd
Current assignee: Zhejiang Jiayou Medical Instrument Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-09-06
Anticipated expiration: 2032-03-29

Abstract

The utility model relates to the technical field of medical equipment, including a balanced formula bone cement filling device for it is firm to fill the bone cement of centrum when centrum shaping operation, obtains the filling pressure of balanced formula. The utility model is used for during the vertebroplasty, through three or four even long notch that set up, the pressure filling that obtains bone cement balanced type is firm, prevents that local pressure from too big arousing that bone cement seepage or local pressure are not enough to lead to bone cement to fill to lack.

Description

Balanced bone cement filling device

Technical Field

The utility model relates to the technical field of medical equipment, it is firm to the bone cement packing of centrum when being used for the vertebroplasty operation, obtains the filling pressure of balanced formula.

Background

Osteoporosis vertebral compression fracture is a common disease of the old, the traditional treatment mainly comprises drug treatment and bed rest, but the effect is not ideal. Percutaneous Vertebroplasty (PVP) and Percutaneous Kyphoplasty (PKP) have brought new hopes for the treatment of compression fractures of senile osteoporotic vertebral bodies. The treatment principle of the operation is that under the guide of fluoroscopy, a bone filling material is injected into a pathological vertebral body through a percutaneous puncture method, or a cavity is generated in the vertebral body through the expansion of a balloon, and then bone cement is injected, so that the aims of stabilizing the pathological vertebral body and relieving the pain of a patient are fulfilled.

Although vertebroplasty and kyphoplasty have achieved good analgesic effects in the treatment of osteoporotic and neoplastic pathological vertebral compression fractures, some problems have not been well solved so far: the main problems are bone cement leakage, the average bone water leakage rate of PVP (polyvinyl pyrrolidone) operation is 29 percent (11-76 percent), and the total leakage rate of PKP operation by using balloon bone expansion is 8.4 percent.

In order to solve the above problems, there is a need to further develop a new or improved related surgical instrument for bone cement filling in percutaneous vertebroplasty.

Disclosure of Invention

The utility model discloses hope to provide a balanced formula bone cement filling device, concrete scheme is as follows:

the utility model provides a balanced formula bone cement filling device, includes outer tube and interior push rod, the front end of outer tube sets up the long notch of circumference equipartition, the long notch is three or four.

The two ends of the long notch are semicircular, and the middle part of the long notch is rectangular. Can ensure that the bone cement is filled more stably.

And a luer is arranged at the tail end of the outer sleeve. The tail end of the outer sleeve is provided with a luer which can be connected with a spiral pressure type bone cement conveyor (also comprising the luer, and the two luer are connected) to pressurize and fill the bone cement.

The outer sleeve comprises an outer sleeve handle, and a first triangular hole is formed in the outer sleeve handle. The trompil can save material, and the design of triangle-shaped can improve stability.

The first triangle-shaped opening is 2, and is the symmetry setting.

The outer cannula handle includes a first arcuate slot. First arc wall can make things convenient for the hand to grip.

The inner push rod comprises an inner push rod handle, and a second triangular hole is formed in the inner push rod handle. The trompil can save material, and triangular design can improve stability.

The second triangle-shaped opening is 2, and is the symmetry setting.

The utility model relates to a balanced bone cement filling device, which can prevent the leakage of bone cement caused by the overlarge filling pressure of local bone cement through three or four long notches which are uniformly arranged; or bone cement filling shortage caused by local bone cement filling pressure insufficiency.

Drawings

FIG. 1 is a schematic structural view of a balanced bone cement filling device of the present invention;

FIG. 2 is a schematic view of the structure of the outer sleeve of the balanced bone cement filling device of the present invention;

FIG. 3 is a schematic structural view of the arrangement of the long notch in the outer sleeve of the balanced bone cement filling device of the present invention;

FIG. 4 is a schematic structural view of an inner pushing rod of the balanced bone cement filling device of the present invention;

wherein the reference numbers: 1. an outer sleeve; 11. a long slot opening; 12. a luer; 13. an outer cannula handle; 14. a first triangular opening; 15. a first arc-shaped slot; 2. an inner push rod; 21. an inner push rod handle; 22. the second triangle is opened with a hole.

Detailed Description

This is further illustrated below in connection with FIGS. 1-4:

the utility model provides a balanced formula bone cement filling device, includes outer tube 1 and interior push rod 2, and the front end of outer tube 1 sets up the long notch 11 of circumference equipartition, and long notch 11 is three or four. The two ends of the long notch 11 are semicircular, and the middle part is rectangular. Can ensure that the bone cement is filled more stably.

The tail end of the outer sleeve 1 is provided with a luer 12. The tail end of the outer sleeve 1 is provided with a luer 12 which can be connected with a screw pressure type bone cement conveyor (also comprising a luer, and two luers are connected) to pressurize and fill the bone cement. The outer sleeve 1 comprises an outer sleeve handle 13, and the outer sleeve handle 13 is provided with a first triangular opening 14. The trompil can save material, and the design of triangle-shaped can improve stability. The number of the first triangular openings 14 is 2, and the first triangular openings are symmetrically arranged. The outer cannula handle 13 includes a first arcuate slot 15. The first arc-shaped groove 15 can be conveniently held by hands.

The inner handspike 2 comprises an inner handspike handle, and a second triangular opening 22 is arranged on the inner handspike handle 21. The trompil can save material, and triangular design can improve stability. The number of the second triangular openings 22 is 2, and the second triangular openings are symmetrically arranged.

The utility model discloses the outer tube tail end has luer 12, can be connected with spiral pressurization formula bone cement conveyer, pressurizes to bone cement and packs, also can directly carry out the propelling movement to bone cement with interior push rod 2 and pack. The utility model is used for during the vertebroplasty, through three or four long notch 11 that evenly set up, the pressure filling that obtains bone cement balanced formula is firm, prevents that local pressure from too big causing bone cement seepage or local pressure not enough to lead to bone cement to fill to lack.

The foregoing description is only for the purpose of illustrating the invention in order to facilitate the understanding of the invention by those skilled in the art. The present invention is not limited to the scope of the specific embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined in the appended claims, and all the inventions utilizing the inventive concept are protected.

Claims

1. The utility model provides a balanced formula bone cement filling device, includes outer tube and interior push rod, its characterized in that: the front end of the outer sleeve is provided with three or four long notches which are uniformly distributed on the circumference; the two ends of the long notch are semicircular, and the middle part of the long notch is rectangular; the tail end of the outer sleeve is provided with a luer.

2. The balanced bone cement filling apparatus as claimed in claim 1, wherein: the outer sleeve comprises an outer sleeve handle, and a first triangular hole is formed in the outer sleeve handle.

3. A balanced bone cement filling apparatus as claimed in claim 2, wherein: the first triangle-shaped opening is 2, and is the symmetry setting.

4. A balanced bone cement filling apparatus as claimed in claim 2, wherein: the outer cannula handle includes a first arcuate slot.

5. A balanced bone cement filling apparatus as claimed in claim 1, wherein: the inner push rod comprises an inner push rod handle, and a second triangular hole is formed in the inner push rod handle.

6. The balanced bone cement filling apparatus as claimed in claim 5, wherein: the second triangle-shaped opening is 2, and is the symmetry setting.