CN112842628A - Acetabular cup cushion block prosthesis capable of being implanted with bone - Google Patents

Acetabular cup cushion block prosthesis capable of being implanted with bone Download PDF

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Publication number
CN112842628A
CN112842628A CN202011579635.3A CN202011579635A CN112842628A CN 112842628 A CN112842628 A CN 112842628A CN 202011579635 A CN202011579635 A CN 202011579635A CN 112842628 A CN112842628 A CN 112842628A
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CN
China
Prior art keywords
acetabulum
bone
cup
cushion block
trabecula
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011579635.3A
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Chinese (zh)
Other versions
CN112842628B (en
Inventor
史春生
许奎雪
焦树豪
荀世界
史春宝
卢小强
王振国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Chunlizhengda Medical Instruments Co Ltd
Original Assignee
Beijing Chunlizhengda Medical Instruments Co Ltd
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Publication date
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Priority to CN202011579635.3A priority Critical patent/CN112842628B/en
Publication of CN112842628A publication Critical patent/CN112842628A/en
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Publication of CN112842628B publication Critical patent/CN112842628B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A61F2002/348—Additional features

Abstract

The invention relates to an acetabulum cup cushion block prosthesis capable of being implanted with bones, which comprises an acetabulum cup and an acetabulum cup cushion block, wherein the acetabulum cup is in a hollow hemispherical shape and is provided with a solid column; the acetabulum cup cushion block comprises wing plates and a bone trabecula, wherein the bone trabecula is provided with a column-shaped groove matched with the solid column of the acetabulum cup. The prosthesis promotes the effect of bone ingrowth by implanting bone filling materials into the acetabulum cushion block, so that the acetabulum cushion block and the acetabulum are combined more tightly. The wing plate connected with the ilium is added to the prosthesis, and the prophase stability of the prosthesis is improved by connecting the screw and the ilium.

Description

Acetabular cup cushion block prosthesis capable of being implanted with bone
Technical Field
The invention relates to a joint prosthesis structure, in particular to an acetabulum cup cushion block prosthesis capable of being implanted with bones.
Background
The acetabulum cushion block is a surgical implant for replacing the acetabulum part of a human hip joint, is mainly used for the case of serious hip defect aiming at the acetabulum in the replacement operation of the hip joint, is processed by titanium alloy materials in the prior art, and has the advantages of convenient processing, low processing cost and the like.
Although the existing acetabular cushion block can replace a human acetabulum with bone defects, the acetabular cushion block and the acetabular cup are usually fixed by adopting adhesives, when the acetabular cushion block is actually used, the clinical loosening rate of the acetabular cushion block and the acetabular cup after the acetabular cushion block and the acetabular cup are installed on a human body is high, so that a revision operation needs to be carried out again, and great physical pain and economic loss are brought to a patient. Meanwhile, the acetabulum cushion block in the prior art is lack of wing plates and bone fixation, which is not favorable for the stability of the prosthesis in the early stage. The prior art has the problem of incomplete matching with actual defects of human sclerotin, so that the bone trabecula cushion block is not fully attached to the acetabulum sclerotin, and the bone ingrowth effect is influenced.
Therefore, there is a need for a bone-implantable acetabular cup and bolster prosthesis that is stable in fixation and easy to revision.
Disclosure of Invention
The invention aims to provide a bone-implantable acetabular cup cushion prosthesis which is high in connection stability, capable of promoting bone ingrowth and easy to repair.
In order to solve the technical problem, the invention provides an acetabular cup cushion block prosthesis capable of being implanted with bones, which comprises an acetabular cup and an acetabular cup cushion block, wherein the acetabular cup is in a hollow hemispherical shape and is provided with a solid column; the acetabular cup cushion block comprises a wing plate and a trabecula, wherein the trabecula is provided with a cylindrical groove matched with the acetabular cup solid column, and the trabecula and the wing plate are both provided with a plurality of screw holes; the bone trabecula is matched with the cup shape of the acetabulum, the bone trabecula is provided with a cylindrical groove, the cylindrical groove is matched with the solid column of the acetabulum cup, and the wing plate extends outwards from the edge of the bone trabecula.
Wherein, the height of the solid column of the acetabulum cup is less than the depth of the column-shaped groove.
Wherein, a bone filling material is arranged between the solid column of the acetabulum cup and the bottom surface of the cylindrical groove.
Wherein, the trabecula bone and the wing plate are integrally formed by the same material. The material is preferably a titanium alloy material, and the porosity of the trabecula and the wing plate after the preparation is 50-80 percent, and the aperture is 1.5-3 mm.
Wherein, the depth of the preferable cylindrical groove is 15-20mm, and the diameter is 10-20 mm;
wherein, the distance between the solid column of the acetabulum cup and the bottom surface of the cylindrical groove is 2-4 mm.
Wherein, the screw hole is five.
The prosthesis promotes the effect of bone ingrowth by implanting bone filling materials into the acetabulum cushion block, so that the acetabulum cushion block and the acetabulum are combined more tightly. The wing plate connected with the ilium is added to the prosthesis, and the prophase stability of the prosthesis is improved by connecting the screw and the ilium. The column structure on the acetabulum cup is combined with the column cavity on the acetabulum cushion block, so that the acetabulum cup is combined with the acetabulum cushion block more tightly, displacement is not easy to occur, and the stable combination of the acetabulum cup and the prosthesis is facilitated. The prosthesis is a prosthesis which is integrally molded by 3D printing according to human body customization and is matched with the actual defect of the human body, so that the trabecular bone cushion block is fully attached to the bone when seeing, and the bone growth effect is promoted.
Drawings
FIG. 1 is a side view of the acetabular cup spacer of the invention;
FIG. 2 is a side view of the acetabular cup spacer of the invention;
FIG. 3 is an assembly view of the acetabular cup and spacer of the invention.
1-cylindrical groove, 2-trabecula, 3-bone filling material, 4-wing plate, 5-screw hole, 6-acetabular cup and 7-solid column.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Comprises an acetabular cup 6 and an acetabular cup cushion block, wherein the acetabular cup is in a hollow hemispherical shape, and the acetabular cup 6 is provided with a solid column 7; the acetabulum cup cushion block comprises a wing plate 4 and a bone trabecula 2, wherein the bone trabecula 2 is provided with a column-shaped groove 1 matched with the solid column of the acetabulum cup, and the bone trabecula and the wing plate are both provided with a plurality of screw holes 5; the trabecula is matched with the acetabulum in a cup shape, and the wing plate extends outwards from the edge of the trabecula.
In order to facilitate filling of bone material and bone ingrowth during the repair process, the height of the solid column of the acetabular cup is less than the depth of the column-shaped groove so as to form a bone filling area. Wherein, bone filling materials are arranged between the solid column of the acetabulum cup and the bottom surface of the cylindrical groove.
The 3D printing technology has great advantages in preparation of bone repair materials, so that the acetabular cup, the trabecula and the wing plate are all made by 3D printing and are all integrally formed by the same materials. Wherein the preferred material is titanium alloy material, and the porosity of the prepared trabecula and wing plate is 50-80%, and the aperture is 1.5-3 mm.
Further considering the requirements of different crowds, the depth of the preferred cylindrical groove is 15-20mm, and the diameter is 10-20 mm; the distance between the solid column of the acetabular cup and the bottom surface of the cylindrical groove is 2-4 mm.
Meanwhile, in order to fix the acetabular cup and the cushion block, five screw holes are formed, wherein three screw holes are formed in the trabecula, and two screw holes are formed in the wing plate.
The prosthesis promotes the effect of bone ingrowth by implanting bone filling materials into the acetabulum cushion block, so that the acetabulum cushion block and the acetabulum are combined more tightly. The wing plate connected with the ilium is added to the prosthesis, and the prophase stability of the prosthesis is improved by connecting the screw and the ilium. The column structure on the acetabulum cup is combined with the column cavity on the acetabulum cushion block, so that the acetabulum cup is combined with the acetabulum cushion block more tightly, displacement is not easy to occur, and the stable combination of the acetabulum cup and the prosthesis is facilitated. The prosthesis is a prosthesis which is integrally molded by 3D printing according to human body customization and is matched with the actual defect of the human body, so that the trabecular bone cushion block is fully attached to the bone when seeing, and the bone growth effect is promoted.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (5)

1. An acetabulum cup cushion block prosthesis capable of being implanted with bones is characterized by comprising an acetabulum cup and an acetabulum cup cushion block, wherein the acetabulum cup is in a hollow hemispherical shape and is provided with a solid column; the acetabulum cup cushion block comprises a wing plate and a bone trabecula, wherein the bone trabecula is provided with a column-shaped groove matched with the solid column of the acetabulum cup, and the bone trabecula and the wing plate are both provided with a plurality of screw holes; the bone trabecula is matched with the acetabulum in a cup shape, the wing plate extends outwards from the edge of the bone trabecula, the height of the solid column of the acetabulum cup is less than the depth of the cylindrical groove, and bone filling materials are arranged between the bottom surfaces of the cylindrical groove and the solid column of the acetabulum cup.
2. The bone implantable acetabular cup pad prosthesis according to claim 1, wherein: the trabecula and the wing plate are integrally formed by the same material, the material is titanium alloy material, the porosity of the trabecula and the wing plate after the preparation is finished is 50-80%, and the aperture is 1.5-3 mm.
3. The bone implantable acetabular cup pad prosthesis according to claim 1, wherein: the depth of the cylindrical groove is 15-20mm, and the diameter is 10-20 mm.
4. The bone implantable acetabular cup pad prosthesis according to claim 1, wherein: the distance between the solid column of the acetabular cup and the bottom surface of the cylindrical groove is 2-4 mm.
5. The bone implantable acetabular cup pad prosthesis according to claim 1, wherein: the number of the screw holes is five.
CN202011579635.3A 2020-12-28 2020-12-28 Bone-implantable acetabular cup cushion block prosthesis Active CN112842628B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011579635.3A CN112842628B (en) 2020-12-28 2020-12-28 Bone-implantable acetabular cup cushion block prosthesis

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Application Number Priority Date Filing Date Title
CN202011579635.3A CN112842628B (en) 2020-12-28 2020-12-28 Bone-implantable acetabular cup cushion block prosthesis

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CN112842628A true CN112842628A (en) 2021-05-28
CN112842628B CN112842628B (en) 2024-02-27

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080021568A1 (en) * 2006-07-07 2008-01-24 Howmedica Osteonics Corp. Acetabular cup augment system
CN102119876A (en) * 2010-09-17 2011-07-13 北京爱康宜诚医疗器材股份有限公司 Assembled wing-reinforced repairing acetabular cup prosthesis
CN102821715A (en) * 2010-01-22 2012-12-12 R·托马斯·哥罗兹 Resilient interpositional hip arthroplasty device
CN207125820U (en) * 2017-01-20 2018-03-23 北京爱康宜诚医疗器材有限公司 A kind of local displacement pattern of fusion femoral head prosthesis
US20180333265A1 (en) * 2017-05-22 2018-11-22 Hip Innovation Technology, LLC Reconfigurable hip prosthesis, method of use and kit
CN111603274A (en) * 2020-05-28 2020-09-01 北京市春立正达医疗器械股份有限公司 Personalized customized acetabulum prosthesis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080021568A1 (en) * 2006-07-07 2008-01-24 Howmedica Osteonics Corp. Acetabular cup augment system
CN102821715A (en) * 2010-01-22 2012-12-12 R·托马斯·哥罗兹 Resilient interpositional hip arthroplasty device
CN102119876A (en) * 2010-09-17 2011-07-13 北京爱康宜诚医疗器材股份有限公司 Assembled wing-reinforced repairing acetabular cup prosthesis
CN207125820U (en) * 2017-01-20 2018-03-23 北京爱康宜诚医疗器材有限公司 A kind of local displacement pattern of fusion femoral head prosthesis
US20180333265A1 (en) * 2017-05-22 2018-11-22 Hip Innovation Technology, LLC Reconfigurable hip prosthesis, method of use and kit
CN111603274A (en) * 2020-05-28 2020-09-01 北京市春立正达医疗器械股份有限公司 Personalized customized acetabulum prosthesis

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