CN103181833A - Polyethylene acetabulum capable of being bonded firmly - Google Patents

Polyethylene acetabulum capable of being bonded firmly Download PDF

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Publication number
CN103181833A
CN103181833A CN201110451032XA CN201110451032A CN103181833A CN 103181833 A CN103181833 A CN 103181833A CN 201110451032X A CN201110451032X A CN 201110451032XA CN 201110451032 A CN201110451032 A CN 201110451032A CN 103181833 A CN103181833 A CN 103181833A
Authority
CN
China
Prior art keywords
polyethylene
acetabulum
spherical surface
acetabular bone
circle
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.)
Pending
Application number
CN201110451032XA
Other languages
Chinese (zh)
Inventor
杨晓杰
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 AK Medical Co Ltd
Original Assignee
Beijing AK Medical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing AK Medical Co Ltd filed Critical Beijing AK Medical Co Ltd
Priority to CN201110451032XA priority Critical patent/CN103181833A/en
Publication of CN103181833A publication Critical patent/CN103181833A/en
Pending legal-status Critical Current

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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
    • 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

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  • 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 a polyethylene acetabulum capable of being bonded firmly. The polyethylene acetabulum is made of ultra-high molecular weight polyethylene, the left half part of the polyethylene acetabulum is a high end, the right half part of the polyethylene acetabulum is a low end, a plurality of grooves are arranged on the surface of the polyethylene acetabulum, and the lower half part of a globule is a spherical surface. The polyethylene acetabulum is characterized in that a top face inner ring circle and an inner spherical surface circle of each groove from top to the lower end are concentric circles, the inner wall of the high end is an inclined plane, and bulged ring type grooves formed by combining ring type bulges and ring type grooves are arranged on the lower part of the inclined plane of the high end, and are uniformly distributed on the spherical surface. The polyethylene acetabulum capable of being bonded firmly can enable bone cement to be distributed more uniformly, is more firmly bonded with pelvis, and has better safety.

Description

Bonding firm type polyethylene acetabular bone
Technical field
The present invention relates to a kind of artificial prosthesis of orthopaedics displacement usefulness, mainly refer to a kind of formula that is adhesively fixed polyethylene acetabular bone that is become by ultrahigh molecular weight polyethylene.
Background technology
The polyethylene acetabular bone is bone-cement type artificial prosthesis parts, existing structure as shown in Figure 2, left end is high-end, right-hand member is low side, and the polyethylene acetabular bone has several grooves, and the groove bottom is sphere, this high-end position should be in the acetabular bone back upper place when implant into body, it act as and prevents posterior dislocation of hip.During polyethylene acetabular bone implant into body, fix with bone cement, its concave part is convenient to bone cement and is entered people's bone acetabular bone, when matching between polyethylene and the people's bone acetabular bone, the concave part of polyethylene acetabular bone is uneven the bone cement extruding easily, causes bone cement can not wrap up the polyethylene acetabular bone fully.
Summary of the invention
The polyethylene acetabular bone that the purpose of this invention is to provide better bonding people's bone acetabular bone.
For achieving the above object, the present invention adopts following design:
A kind of better bonding polyethylene acetabular bone, become by ultrahigh molecular weight polyethylene, its left side is high-end, right-hand part is low side, and polyethylene acetabular bone surface has a lot of grooves, and the groove Lower Half is sphere, end face inner ring to low side circle is concentric circular with the Internal Spherical Surface circle to groove from last, high-end inwall is the inclined-plane, is the protruding ring shaped slot that annular protrusion combines with annular groove and obtains in bottom, high-end inclined-plane, evenly is arranged in spherical surface.
Advantage of the present invention is: the bonding firm type polyethylene of the present invention acetabular bone is owing to adopt above design, the polyethylene acetabular bone can not extrude the bone cement agent and go, cooperating between convenient and the people's bone acetabular bone, bone cement can wrap up whole polyethylene acetabular bone, makes cooperation between the two very firm.
Description of drawings
Fig. 1 is the invention structural representation
Fig. 2 is old-fashioned polyethylene acetabular bone structural representation
The specific embodiment
As shown in Figure 1, a kind of bonding firm type polyethylene acetabular bone of the present invention is become by ultrahigh molecular weight polyethylene, and its left side is high-end, right-hand part is low side, polyethylene acetabular bone surface has a lot of grooves, and the bead Lower Half is sphere, it is characterized in that, end face inner ring to low side circle is concentric circular with the Internal Spherical Surface circle to groove from last, high-end inwall is the inclined-plane, is the protruding ring shaped slot that annular protrusion combines with annular groove and obtains in bottom, high-end inclined-plane, evenly is arranged in spherical surface.

Claims (1)

1. bonding firm type polyethylene acetabular bone, become by ultrahigh molecular weight polyethylene, its left side is high-end, and right-hand part is low side, and polyethylene acetabular bone surface has a lot of grooves, the bead Lower Half is sphere, it is characterized in that the circle of the end face inner ring to low side is concentric circular with the Internal Spherical Surface circle to groove from last, high-end inwall is the inclined-plane, be the protruding ring shaped slot that annular protrusion combines with annular groove and obtains in bottom, high-end inclined-plane, evenly be arranged in spherical surface.
CN201110451032XA 2011-12-30 2011-12-30 Polyethylene acetabulum capable of being bonded firmly Pending CN103181833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110451032XA CN103181833A (en) 2011-12-30 2011-12-30 Polyethylene acetabulum capable of being bonded firmly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110451032XA CN103181833A (en) 2011-12-30 2011-12-30 Polyethylene acetabulum capable of being bonded firmly

Publications (1)

Publication Number Publication Date
CN103181833A true CN103181833A (en) 2013-07-03

Family

ID=48673454

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110451032XA Pending CN103181833A (en) 2011-12-30 2011-12-30 Polyethylene acetabulum capable of being bonded firmly

Country Status (1)

Country Link
CN (1) CN103181833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110292469A (en) * 2019-06-25 2019-10-01 丁浩男 A kind of interim prosthese of infection-resistant medical

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260046A (en) * 1969-09-25 1972-01-12 Howse & Company Ltd D Surgical appliance
US4123806A (en) * 1977-01-31 1978-11-07 Regents Of The University Of California Total hip joint replacement
FR2722398A1 (en) * 1994-07-15 1996-01-19 Landanger Landos One=piece cotyloid implant for hip prosthesis
CN201847797U (en) * 2010-09-17 2011-06-01 北京爱康宜诚医疗器材股份有限公司 Display pin falling-off prevention type polyethylene acetabulum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260046A (en) * 1969-09-25 1972-01-12 Howse & Company Ltd D Surgical appliance
US4123806A (en) * 1977-01-31 1978-11-07 Regents Of The University Of California Total hip joint replacement
FR2722398A1 (en) * 1994-07-15 1996-01-19 Landanger Landos One=piece cotyloid implant for hip prosthesis
FR2722398B1 (en) * 1994-07-15 1997-02-28
CN201847797U (en) * 2010-09-17 2011-06-01 北京爱康宜诚医疗器材股份有限公司 Display pin falling-off prevention type polyethylene acetabulum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110292469A (en) * 2019-06-25 2019-10-01 丁浩男 A kind of interim prosthese of infection-resistant medical

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PB01 Publication
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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130703