CN109381281B - Acetabular system and application method thereof - Google Patents
Acetabular system and application method thereof Download PDFInfo
- Publication number
- CN109381281B CN109381281B CN201710665661.XA CN201710665661A CN109381281B CN 109381281 B CN109381281 B CN 109381281B CN 201710665661 A CN201710665661 A CN 201710665661A CN 109381281 B CN109381281 B CN 109381281B
- Authority
- CN
- China
- Prior art keywords
- acetabular cup
- acetabular
- striker
- cup
- reinforcing ring
- Prior art date
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 34
- 238000002513 implantation Methods 0.000 claims abstract description 17
- 210000000988 bone and bone Anatomy 0.000 claims description 14
- 210000000588 acetabulum Anatomy 0.000 claims description 8
- 239000003351 stiffener Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 33
- 239000000919 ceramic Substances 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention relates to the technical field of medical equipment, in particular to an acetabular system and a use method thereof, wherein the acetabular system comprises an acetabular cup, a reinforcing ring, a lining and a striker used for implanting the acetabular cup, the reinforcing ring is positioned between the acetabular cup and the striker, the striker is detachably and fixedly connected with the acetabular cup, and the striker fixes the positions of the acetabular cup and the reinforcing ring in the implantation process.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an acetabular system and a use method thereof.
Background
The prior art acetabular cup is used directly in combination with the liner, and in some cases the strength of the acetabular cup is not as good as that of the prior art acetabular cup, although the prior art has a ceramic liner construction, it does not change the rigidity of the acetabular cup.
Disclosure of Invention
In order to solve the problem that the strength of an acetabular cup in the prior art cannot meet the requirement, the invention provides an acetabular system with high strength and a use method thereof.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides an acetabular system, includes acetabular cup, strengthening ring, inside lining and is used for implanting the striker of acetabular cup, the strengthening ring be located between acetabular cup and the striker, striker and acetabular cup detachable fixed connection, the striker with acetabular cup and strengthening ring both fixed in position during implantation.
Further, the striking device comprises a striking rod and a striking disc fixed on the striking rod, wherein the striking rod is in threaded fit with the acetabular cup in the implantation process, and the striking disc is tightly attached to the end face of the reinforcing ring and pushes the reinforcing ring against the acetabular cup in the implantation process.
As one embodiment of the invention, the stiffening ring is removed from the acetabular cup after implantation of the acetabular cup.
As another embodiment of the invention, the stiffening ring remains in the acetabular cup after implantation of the acetabular cup, the stiffening ring and acetabular cup together comprising a composite acetabular cup.
Further, the outer wall of the reinforcing ring is matched with the inner wall of the acetabular cup.
Further, the inner wall of the reinforcing ring is matched with the outer wall of the lining.
A method of using an acetabular system as described above, comprising the steps of:
1) Loading the stiffening ring into the acetabular cup, threadably engaging the impactor with the acetabular cup, and then implanting the acetabular cup into the bone;
2) After a period of time, the bone is loosened, and the striker is detached from the acetabular cup;
3) If the liner is a soft cup liner, the liner is loaded into the acetabular cup after the stiffening ring is removed from the acetabular cup; if the liner is a hard cup liner, the liner is directly loaded into the stiffener ring without removing the stiffener ring.
The beneficial effects are that: the invention adopts the reinforcing ring, the rigidity of the metal mortar cup is increased, the deformation after striking implantation is reduced, and the implantation and matching of a hard lining such as a ceramic lining are facilitated; the invention optimizes the function of the acetabular prosthesis by taking into account the requirements of different rigidity and thickness and the different locking structures of different acetabular liners.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is an exploded view of an acetabular cup, a stiffening ring and a impactor of the invention;
FIG. 2 is a block diagram of the assembly of the acetabular cup, the stiffening ring and the impactor of the invention;
FIG. 3 is a view of an acetabular cup and reinforcing ring construction of the invention;
FIG. 4 is a block diagram of an acetabular cup, a stiffening ring and a liner of the invention.
Wherein, 1, acetabular cup, 2, stiffening ring, 3, inside lining, 4, striker, 41, strike pole, 42, strike disc.
Detailed Description
1-4, an acetabular system includes an acetabular cup 1, a stiffening ring 2, a liner 3, and a striker 4 for implanting the acetabular cup 1, the stiffening ring 2 being positioned between the acetabular cup 1 and the striker 4, the striker 4 being removably fixedly coupled to the acetabular cup 1, the striker 4 fixing both the acetabular cup 1 and the stiffening ring 2 in position during implantation.
The striker 4 comprises a striker rod 41 and a striker disc 42 fixed on the striker rod 41, wherein the striker rod 41 is in threaded fit with the acetabular cup 1 during implantation, and the striker disc 42 is tightly attached to the end face of the reinforcing ring 2 and pushes the reinforcing ring 2 against the acetabular cup 1 during implantation.
Example 1:
the stiffening ring 2 is removed from the acetabular cup 1 after implantation of the acetabular cup 1. The bone of the human body has plastic deformation capability, when the acetabular cup 1 is implanted, the bone deforms to give the acetabular cup 1 a position, but when the bone is relaxed, the bone returns to the original position, because the bone is relaxed and can exert pressure on the acetabular cup 1, the acetabular cup 1 deforms to influence the use, the reinforcing ring 2 and the acetabular cup 1 are implanted into the bone together, the outer wall of the reinforcing ring 2 is matched with the inner wall of the acetabular cup 1, and when the bone is relaxed, the reinforcing ring 2 is taken out again, so that the reinforcing ring 2 enhances the rigidity of the acetabular cup 1, and the acetabular cup 1 cannot deform even if the bone is relaxed.
If a soft liner such as an ultra-high molecular polyethylene liner is required, the rigidity requirement of the acetabular cup 1 is reduced and the thickness requirement of the soft liner is greatly increased, so that the acetabular cup 1 and the polyethylene liner are directly coupled to complete the acetabular prosthesis, i.e. the soft liner is implanted into the acetabular cup 1 after the reinforcing ring 2 is removed.
Example 2:
the stiffening ring 2 remains in the acetabular cup 1 after implantation of the acetabular cup 1, the stiffening ring 2 together with the acetabular cup 1 forming a composite acetabular cup. The outer wall of the reinforcing ring 2 is matched with the inner wall of the acetabular cup 1, and the inner wall of the reinforcing ring 2 is matched with the outer wall of the liner 3. In this embodiment, the outer wall of the stiffening ring 2 is a conical surface adapted to the inner wall of the acetabular cup 1, and the inner wall of the stiffening ring 2 is a conical surface adapted to the outer wall of the liner 3. The reinforcing ring 2 is firstly combined with the acetabular cup 1 and the striker 4 in the operation to form a high-rigidity acetabular cup, the striker 4 is removed after the acetabular cup 1 and the reinforcing ring 2 are implanted, then a hard lining (such as a ceramic lining) is implanted, and if the ceramic lining needs to be repaired, the damaged ceramic lining can be removed by prying the reinforcing ring 2 through a notch.
The use method of the acetabulum system comprises the following steps:
1) Loading the reinforcing ring 2 into the acetabular cup 1, screwing the striker 4 and the acetabular cup 1, and then implanting the acetabular cup 1 into bone;
2) After a period of time, the bone is loosened, and the striker 4 is detached from the acetabular cup 1;
3) If liner 3 is a soft cup liner, then liner 3 is loaded into acetabular cup 1 after stiffener ring 2 is removed from acetabular cup 1; if the liner 3 is a hard cup liner, the liner 3 is directly loaded into the stiffener ring 2 without removing the stiffener ring 2.
It should be understood that the above-described specific embodiments are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications which extend from the spirit of the present invention are within the scope of the present invention.
Claims (5)
1. An acetabular system, characterized by:
the novel acetabulum cup comprises an acetabulum cup body (1), a reinforcing ring (2), a lining (3) and a striker (4) for implanting the acetabulum cup body (1), wherein the reinforcing ring (2) is positioned between the acetabulum cup body (1) and the striker (4), the striker (4) is detachably and fixedly connected with the acetabulum cup body (1), and the striker (4) fixes the positions of the acetabulum cup body (1) and the reinforcing ring (2) in the implantation process;
the striker (4) comprises a striker rod (41) and a striker disc (42) fixed on the striker rod (41), wherein the striker rod (41) is in threaded fit with the acetabular cup (1) in the implantation process, and the striker disc (42) is tightly attached to the end face of the reinforcing ring (2) and pushes the reinforcing ring (2) against the acetabular cup (1) in the implantation process;
the stiffening ring (2) is used to increase the rigidity of the acetabular cup (1) during implantation;
the outer wall of the reinforcing ring (2) is matched with the inner wall of the acetabular cup (1).
2. An acetabular system according to claim 1, wherein:
the reinforcing ring (2) is taken out from the acetabular cup (1) after the acetabular cup (1) is implanted.
3. An acetabular system according to claim 1, wherein:
the reinforcing ring (2) is left in the acetabular cup (1) after the acetabular cup (1) is implanted, and the reinforcing ring (2) and the acetabular cup (1) form a composite acetabular cup.
4. An acetabular system according to claim 3, wherein:
the inner wall of the reinforcing ring (2) is matched with the outer wall of the lining (3).
5. An acetabular system according to any of claims 1 to 4 wherein: the use method of the acetabulum system comprises the following steps:
1) Loading the reinforcing ring (2) into the acetabular cup (1), fixing the striker (4) and the acetabular cup (1), and then implanting the acetabular cup (1) into bone;
2) After a period of time, the bone is loosened, and the striker (4) is detached from the acetabular cup (1);
3) If the liner (3) is a soft cup liner, the liner (3) is filled into the acetabular cup (1) after the reinforcing ring (2) is removed from the acetabular cup (1); if the liner (3) is a hard cup liner, the liner (3) is directly loaded into the stiffener ring (2) without removing the stiffener ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665661.XA CN109381281B (en) | 2017-08-07 | 2017-08-07 | Acetabular system and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665661.XA CN109381281B (en) | 2017-08-07 | 2017-08-07 | Acetabular system and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109381281A CN109381281A (en) | 2019-02-26 |
| CN109381281B true CN109381281B (en) | 2024-02-13 |
Family
ID=65413468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665661.XA Active CN109381281B (en) | 2017-08-07 | 2017-08-07 | Acetabular system and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109381281B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393611A (en) * | 2019-07-11 | 2019-11-01 | 北京市春立正达医疗器械股份有限公司 | Surface hip joint prosthese |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2931656A1 (en) * | 2008-05-30 | 2009-12-04 | Fournitures Hospitalieres Ind | Rigid insert fixing device for cotyloidal implant to treat e.g. hip arthrosis, of patient, has metallic ring whose conical surfaces converge in same direction, and gripping unit formed of tapped through-holes arranged on ring |
| WO2010023296A1 (en) * | 2008-09-01 | 2010-03-04 | Denis Pichon | Articular prosthetic acetabulum |
| CN208355601U (en) * | 2017-08-07 | 2019-01-11 | 创生医疗器械（中国）有限公司 | A kind of acetabular bone system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070179629A1 (en) * | 2006-01-31 | 2007-08-02 | Murphy Stephen B | Acetabular cup assembly and cup revising method |
| US10420648B2 (en) * | 2009-06-10 | 2019-09-24 | Jean-Pierre LAFFAY | Acetabular prosthetic system with simplified impaction |
| GB201020041D0 (en) * | 2010-11-25 | 2011-01-12 | Benoist Girard & Cie | Prosthetic acetabular cup inserter and impactor |
-
2017
- 2017-08-07 CN CN201710665661.XA patent/CN109381281B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2931656A1 (en) * | 2008-05-30 | 2009-12-04 | Fournitures Hospitalieres Ind | Rigid insert fixing device for cotyloidal implant to treat e.g. hip arthrosis, of patient, has metallic ring whose conical surfaces converge in same direction, and gripping unit formed of tapped through-holes arranged on ring |
| WO2010023296A1 (en) * | 2008-09-01 | 2010-03-04 | Denis Pichon | Articular prosthetic acetabulum |
| CN208355601U (en) * | 2017-08-07 | 2019-01-11 | 创生医疗器械（中国）有限公司 | A kind of acetabular bone system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109381281A (en) | 2019-02-26 |
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