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CN-121971153-A - Bone cement filler for joint forming operation and manufacturing method thereof

CN121971153ACN 121971153 ACN121971153 ACN 121971153ACN-121971153-A

Abstract

The invention discloses a bone cement filler for joint forming operation and a manufacturing method thereof, and relates to the technical field of joint forming operation. The bone cement injection device comprises a handle, a pipe and a plug which are connected in sequence, wherein threads at one end of the handle except for being held in operation are used for being connected with a bone cement injector capable of being pressurized, the pipe at the end of the handle is open, the plug is positioned at the other end of the pipe, and the integrated pipe and the plug are both channels of bone cement and pressurized containers when the bone cement is injected by a plunger. The holes or strip holes on the pipe at the end of the plug and the plug are dispersion channels of bone cement, and the design of a plurality of holes or strip holes in different directions is used for meeting the requirements of the diffusion of bone cement under different operation technologies and the accurate control of the bone cement in the dispersion direction of cancellous bone, so that the local bone strength of the joint is enhanced.

Inventors

  • YAN FEI

Assignees

  • 燕飞

Dates

Publication Date
20260505
Application Date
20260324

Claims (10)

  1. 1. The bone cement filler for the joint forming operation is characterized by comprising a handle (1), a pipe (2) and a plug (3) which are connected in sequence, wherein threads at one end of the handle (1) except for being held in operation are used for being connected with a bone cement injector capable of being pressurized, the pipe (2) at the end of the handle (1) is opened, and the plug (3) is positioned at the other end of the pipe (2); be located stifled (3) end pipe (2) and be equipped with the diffusion hole on stifled (3), the diffusion hole is the diffusion passageway of bone cement, and the design of a plurality of diffusion holes of different directions is in order to satisfy the diffusion that is favorable to bone cement under the different operation technique to and satisfy the accurate control of bone cement in the diffusion direction of cancellous bone, thereby strengthen joint local intensity.
  2. 2. Bone cement filler according to claim 1, characterized in that the dispersion holes in the end tube (2) of the plug (3) and in the plug (3) are first dispersion holes (21) and second dispersion holes (31), respectively.
  3. 3. The bone cement filler according to claim 1, characterized in that the plug (3) is integrally formed or welded with the tube (2), the maximum outer diameter phid of the tube (2) being phi 3-phi 4mm, the inner diameter phid being phi 2-phi 3.2mm, the total length L of the tube (2) being 180-250mm.
  4. 4. Bone cement filler according to claim 2, characterized in that the plug (3) is provided with a second dispersion hole (31), the diameter phid 1 of the second dispersion hole (31) being phi1-phi2 mm.
  5. 5. The bone cement filler according to claim 2, characterized in that a plurality of first dispersion holes (21) are distributed in the tube (2) near one end of the plug (3), the first dispersion holes (21) are circular holes or elongated holes, the diameter phid 2 of the circular holes is phi 0.5-phi 1mm, the width d2 of the elongated holes is 0.3-1mm, and the sum of the areas of all the first dispersion holes is not larger than the sectional area of the tube (2).
  6. 6. The bone cement filler according to claim 5, characterized in that the distance H from the end face of the plug (3) of the first dispersion holes (21) on the tube (2) near one end of the plug (3) is 1-2mm, the first dispersion holes (21) are holes circular or elongated, and the dispersion holes are distributed in the range of 6-15 mm.
  7. 7. Bone cement filler according to claim 5, characterized in that the first dispersion holes (21) in the tube (2) near one end of the plug (3) are evenly or intensively distributed in the circumferential direction of the tube (2).
  8. 8. Bone cement filler according to claim 7, characterized in that the distribution angle θ is not more than 90 ° when the first dispersion holes (21) on the tube (2) near one end of the plug (3) are concentrated.
  9. 9. Bone cement filler according to claim 1, characterized in that the tube (2) and the plug (3) are made of stainless steel material and the handle (1) is made of engineering plastic.
  10. 10. A method of manufacturing a bone cement filler for use in arthroplasty procedures of claim 1, comprising the steps of: S1, designing the size and the shape of the bone cement filler for joint forming operation, wherein the sum of the areas of all the first dispersion holes (21) and the second dispersion holes (31) is not larger than the sectional area of the tube (2); s2, cutting all first dispersion holes (21) on the processing pipe (2) by laser, wherein the first dispersion holes (21) are round holes or strip holes; S3, processing the plug (3) and second dispersion holes (31) on the plug, wherein the second dispersion holes (31) are round holes or strip holes; S4, welding the pipe (2) and the plug (3) by laser; S5, injection molding the handle (1) and integrating the handle with the combination of the pipe (2) and the plug (3); s6, cleaning, packaging and sterilizing the molded bone cement filler to prepare a bone cement filler finished product for joint molding operation.

Description

Bone cement filler for joint forming operation and manufacturing method thereof Technical Field The invention relates to the technical field of joint forming, in particular to a bone cement filler for joint forming operation and a manufacturing method thereof. Background The knee joint pain is mainly clinically treated by a stepped treatment scheme, namely oral pain relieving medicine and functional exercise, osteotomy orthopedic, unicondylar replacement and total knee replacement, but the knee-protecting series scheme does not include knee joint pain of old people with normal knee joint force lines without cartilage degeneration, the old people take osteoporosis as a main cause, CT and X rays are not obviously abnormal, but MRI has T1 and T2 signals to change, and check bone Density (DXA) shows osteoporosis, and the treatment period of the osteoporosis is long and has slow effect. The patients are advanced with weight bearing pain as the main manifestation, inspired by vertebroplasty, so in order to improve the life quality of the advanced patients, it is necessary to develop a method capable of rapidly solving the weight bearing pain of the patients. However, existing cement fillers used in cone molding have the following drawbacks: 1. the dispersion orientation of the bone cement after injection is strong, and the treatment requirement of large joint volume cannot be met. 2. The direction of bone cement injection is difficult to control, and the treatment requirements of all joints cannot be met. Accordingly, there is a need for a bone cement filler for arthroplasty procedures and a method of making the same that address the above-described problems. Disclosure of Invention The invention aims to provide a bone cement filler for joint forming operation and a manufacturing method thereof. For the old knee pain patients with normal cartilage degeneration-free knee joint force lines, the same arthroplasty treatment as the cone arthroplasty is adopted, and firstly, a puncture is performed to establish a channel. The cement filler is then inserted into the channel and the cement is pushed into the desired location using a push rod or cement syringe or the like. For large joints such as knee joints, the filling volume of bone cement is limited, so that the filling position is required to be relatively accurate. In order to achieve the above purpose, the bone cement filler for joint forming operation and the manufacturing method thereof are realized by adopting the following technical scheme: The bone cement filler for joint forming operation includes one handle, one pipe and one plug connected successively, with the handle being used to hold the bone cement injector for pressurizing, the pipe being opened and the plug being located in the other end of the pipe; be located stifled end pipe and be equipped with the diffusion hole on stifled, the diffusion hole is the diffusion passageway of bone cement, and the design of a plurality of diffusion holes of different directions is in order to satisfy the diffusion that is favorable to bone cement under the different operation techniques to and satisfy the accurate control of bone cement at the diffusion direction of cancellous bone, thereby strengthen joint local intensity. The bone cement filler is positioned at the end blocking pipe and is provided with a first dispersion hole and a second dispersion hole respectively. The bone cement filler is characterized in that the plug and the pipe are integrally formed or welded into a whole, the maximum outer diameter phi D of the pipe is phi 3-phi 4mm, the inner diameter phi D of the pipe is phi 2-phi 3.2mm, and the total length L of the pipe is 180-250mm. The bone cement filler is provided with a second dispersion hole, and the diameter phi d1 of the second dispersion hole is phi 1-phi 2mm. The bone cement filler is characterized in that a plurality of first dispersion holes are distributed on a pipe close to one end of the plug, the first dispersion holes are round holes or strip holes, the diameter phi d2 of the round holes is phi 0.5-phi 1mm, the width d2 of the strip holes is 0.3-1mm, and the sum of the areas of all the first dispersion holes is not larger than the sectional area of the pipe. The first dispersion holes on the pipe close to one end of the plug are 1-2mm away from the end face of the plug, the first dispersion holes are hole round holes or strip holes, and the dispersion holes are distributed in the range of 6-15 mm. The first dispersion holes on the pipe close to one end of the plug can be uniformly distributed or intensively distributed along the circumferential direction of the pipe. When the first dispersion holes on the pipe close to one end of the plug are intensively distributed, the distribution angle theta of the bone cement filler is not more than 90 degrees. The bone cement filler, the pipe and the plug are made of stainless steel materials, and the handle is made of engineering plastics. A