CA2633050A1 - Lateral elbow prosthesis-proximal radioulnar joint - Google Patents

Lateral elbow prosthesis-proximal radioulnar joint Download PDF

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Publication number
CA2633050A1
CA2633050A1 CA002633050A CA2633050A CA2633050A1 CA 2633050 A1 CA2633050 A1 CA 2633050A1 CA 002633050 A CA002633050 A CA 002633050A CA 2633050 A CA2633050 A CA 2633050A CA 2633050 A1 CA2633050 A1 CA 2633050A1
Authority
CA
Canada
Prior art keywords
proximal
brace member
recited
radioulnar joint
radial
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.)
Granted
Application number
CA002633050A
Other languages
French (fr)
Other versions
CA2633050C (en
Inventor
Luis Roman Scheker
Bryan Babb
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.)
Aptis Medical LLC
Original Assignee
Aptis Medical, Llc
Luis Roman Scheker
Bryan Babb
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 Aptis Medical, Llc, Luis Roman Scheker, Bryan Babb filed Critical Aptis Medical, Llc
Publication of CA2633050A1 publication Critical patent/CA2633050A1/en
Application granted granted Critical
Publication of CA2633050C publication Critical patent/CA2633050C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • 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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3809—Joints for elbows or knees for elbows for radio-humeral joints
    • 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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3818—Joints for elbows or knees for elbows for proximal radio-ulnar joints, i.e. PRU joints
    • 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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3831—Ulnar components

Abstract

A proximal radioulnar joint (lateral elbow) prosthesis (10) includes an ulnar brace member (12) to be secured to the outer surface of the ulna bone. The ulnar brace member defines a bearing surface (39) for supporting the radius. The prosthesis may also include a radial brace member (16) which cooperates with the ulnar brace member.

Claims (18)

1. A proximal radioulnar joint prosthesis comprising:
an ulnar brace member having an upper end and a lower end. and including a substantially flat. downwardly-extending elongated portion defining an elongated abutment surface for abutting the outer surface of the ulna bone near its proximal end: and a bearing surface adjacent the upper end of said ulnar brace member for rotationally supporting a radius bone adjacent its proximal end.
2. A proximal radioulnar joint prosthesis as recited in claim 1. wherein said bearing surface is at least a partial ring.
3. A proximal radioulnar joint prosthesis as recited in claim 2, wherein said bearing surface is a full ring. positioned and sized to encircle the radial head of the radius bone.
4. A proximal radioulnar joint prosthesis as recited in claim 3. wherein said ring is open, so that, when it is installed on a human ulna and encircles the radial head of the radius bone, it allows the radial head to contact the capitellum of the humerus bone.
5. A proximal radioulnar joint prosthesis as recited in claim 3, wherein said ulnar brace member includes a base portion; a cover; and means for securing said cover to said base portion. wherein said assembled base portion and cover together form said ring.
6. A proximal radioulnar joint prosthesis as recited in claim 3. and further comprising:
a radial brace member including a rod defining a longitudinal axis and distal and proximal ends: and a ball at the proximal end of said rod which serves as the radial head of the radius bone;

wherein said bearing surface of said ulnar brace member receives and rotationally supports said ball.
7. A proximal radioulnar joint prosthesis as recited in claim 6, wherein said ulnar brace member is fixed to the ulna bone of a patient and said radial brace member is fixed to the radius bone of a patient.
8. A proximal radioulnar joint prosthesis as recited in claim 6, wherein said ulnar brace member includes a cap which defines said ring, said cap also defining a closed upper surface and a downwardly opening recess, said recess receiving and rotationally supporting said ball, and said closed upper surface defining an upwardly facing concave surface for receiving the capitellum of a humerus bone.
9. A proximal radioulnar joint prosthesis as recited in claim 6, wherein said ball of said radial brace member defines a central axis, and the longitudinal axis of the rod of said radial brace member is offset from the central axis of said ball so that when said radial brace member is installed on a radius and said ulnar brace member is installed on an ulna, the prosthesis provides the same alignment of the radius and ulna as in the original natural proximal radioulnar joint.
10. A proximal radioulnar joint prosthesis as recited in claim 3, wherein said downwardly-extending elongated portion extends tangentially from said ring, and said abutment surface is shaped to conform to the shape of the surface of the ulna bone.
11. A proximal radioulnar joint prosthesis as recited in claim 1, wherein said downwardly-extending elongated portion defines a plurality of laterally-oriented holes, and further including fasteners, which extend through said laterally-oriented holes for mounting said ulnar brace member on the ulna bone.
12. A method of installing a proximal radioulnar joint prosthesis.
comprising the steps of:
fixing an ulnar brace to the outer surface of the ulna bone of a patient near the proximal end of the ulna bone: and aligning said ulnar brace with the patient's radius bone so that the ulnar brace provides a bearing surface that supports the patient's radius bone.
13. A method of installing a proximal radioulnar joint prosthesis as recited in claim 12. wherein said ulnar brace includes a base member and a cover, and including the step of assembling said cover and base member together to form a ring which encircles the radius bone adjacent its proximal end.
14. A method of installing a proximal radioulnar joint prosthesis as recited in claim 12, and further comprising the step of:
inserting a radial brace member into the medullary cavity of the radius bone, said radial brace member including:
a rod, defining a longitudinal axis and distal and proximal ends:
and a radial head prosthesis at the proximal end of said rod;
wherein said bearing surface supports said radial head prosthesis.
15. A method of installing a proximal radioulnar joint prosthesis as recited in claim 13, and further comprising the step of:
inserting a radial brace member into the medullary cavity of the radius bone, said radial brace member including:
a rod, defining a longitudinal axis and distal and proximal ends:
and a radial head prosthesis at the proximal end of said rod;
wherein said bearing surface supports said radial head prosthesis.
16. A method of installing a proximal radioulnar joint prosthesis as recited in claim 15, wherein said ulnar brace member includes a cap which defines said ring.
said cap also defining a closed upper surface and a downwardly opening recess, said recess receiving said radial head prosthesis.
17. A proximal radioulnar joint prosthesis as recited in claim 3. and further comprising a radial head prosthesis encircled by said ring.
18. A proximal radioulnar joint prosthesis as recited in claim 6, wherein said ball of said radial brace member defines a central axis, and the longitudinal axis of the rod of said radial brace member is aligned with the central axis of said ball.
CA2633050A 2005-12-22 2006-12-21 Lateral elbow prosthesis-proximal radioulnar joint Active CA2633050C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/306,312 2005-12-22
US11/306,312 US7708781B2 (en) 2005-12-22 2005-12-22 Lateral elbow prosthesis—proximal radioulnar joint
PCT/US2006/062463 WO2007073564A1 (en) 2005-12-22 2006-12-21 Lateral elbow prosthesis-proximal radioulnar joint

Publications (2)

Publication Number Publication Date
CA2633050A1 true CA2633050A1 (en) 2007-06-28
CA2633050C CA2633050C (en) 2013-03-12

Family

ID=37845354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2633050A Active CA2633050C (en) 2005-12-22 2006-12-21 Lateral elbow prosthesis-proximal radioulnar joint

Country Status (6)

Country Link
US (1) US7708781B2 (en)
EP (1) EP1962727B1 (en)
AT (1) ATE551025T1 (en)
CA (1) CA2633050C (en)
ES (1) ES2381281T3 (en)
WO (1) WO2007073564A1 (en)

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Publication number Priority date Publication date Assignee Title
CN113349990A (en) * 2021-06-10 2021-09-07 北京力达康科技有限公司 Composite reconstructed semi-knee joint prosthesis with preserved joint surface

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Publication number Priority date Publication date Assignee Title
CN113349990A (en) * 2021-06-10 2021-09-07 北京力达康科技有限公司 Composite reconstructed semi-knee joint prosthesis with preserved joint surface
CN113349990B (en) * 2021-06-10 2022-04-19 北京力达康科技有限公司 Composite reconstructed semi-knee joint prosthesis with preserved joint surface

Also Published As

Publication number Publication date
ATE551025T1 (en) 2012-04-15
ES2381281T3 (en) 2012-05-24
CA2633050C (en) 2013-03-12
US7708781B2 (en) 2010-05-04
US20080195217A1 (en) 2008-08-14
WO2007073564A1 (en) 2007-06-28
EP1962727B1 (en) 2012-03-28
EP1962727A1 (en) 2008-09-03

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