WO1994017758A1 - Elbow prosthesis - Google Patents
Elbow prosthesis Download PDFInfo
- Publication number
- WO1994017758A1 WO1994017758A1 PCT/NO1994/000033 NO9400033W WO9417758A1 WO 1994017758 A1 WO1994017758 A1 WO 1994017758A1 NO 9400033 W NO9400033 W NO 9400033W WO 9417758 A1 WO9417758 A1 WO 9417758A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- component
- clip
- ulnar
- spindle
- prosthesis
- Prior art date
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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30624—Hinged joint, e.g. with transverse axle restricting the movement
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
Definitions
- the invention concerns an elbow prosthesis for implantation in destroyed elbow joints, with an ulnar component and a humeral component in tissue-compatible material, wherein the head of the ulnar component is designed in a bifurcated form with two horns, wherein the head of the humeral component comprises a rotatable, replaceable spool or spindle of a tissue-compatible and strong plastic material between two projecting flanges and wherein the joint component of the prosthesis is formed by the head of the ulnar component being arranged to engage with the rotatable spindle of the humeral component.
- EP- 0 098 466 shows an elbow prosthesis wherein a fixed spindle on the humeral component engages with a substantially cylindrical sliding piece in a cut-out on the spindle and wherein the sliding piece is anchored on a shaft which is attached to the ulnar component.
- the sliding piece is thereby rotatably mounted in the fixed spindle and is locked to it by means of a sleeve which has a C- shaped cross section and which is pushed over the spindle.
- EP-0 057 shows an elbow prosthesis of a similar kind with a spindle-like element on the humeral component and a bifurcated element on the ulnar component.
- the object is to achieve an optimum joining of the joint components and ensure stability, low loading and mobility with a minimum removal of bone tissue.
- the known prosthesis consists of several sizes of humeral components and several sizes of ulnar components with a common joint component, thus enabling for each patient the selection of the component size which is best suited to the individual bones.
- the joint connection is free and this prosthesis is therefore dependent on good ligaments and muscle tendons in order to keep the joint in place. If the ligaments are not adequate, e.g. due to fracture and injury, the prosthesis will be able to come out of joint.
- the object of the present application is to modify the known prosthesis in such a way that the free joint connection can be blocked and converted to a so-called “semi-constrained" prosthesis which can also be used where the ligaments are not adequate and there is a risk of the prosthesis coming out of joint.
- an elbow prosthesis according to the present inven ⁇ tion, characterized in that in each of the horns on the ulnar component there is provided a groove which terminates in a respective blind hole on each horn, the blind holes being approximately diametrically opposite each other in relation to the ulnar component's joint centre, that the elbow prosthesis contains a C-ring- like clip arranged to connect the heads of the ulnar component and the humeral component while maintaining the desired degree of freedom of movement for the elbow joint and a predetermined tolerance of movement, and that the clip embraces the spindle on the humeral component with a clearance between the arc of the clip and the spindle and is locked to the ulnar component, the ends of the clip being inserted into the grooves on the horn of the ulnar component and engaging with the blind holes.
- Fig. la-lc show schematically the head of the ulnar component of the prosthesis seen from the rear, from the side and from above towards the opening between the horns respectively.
- Fig. 2a-2c show the clip of the present invention seen in a planar state from the side and in a top view respectively and from the side after the clip has been bent into a C-ring shape.
- Figs. 3a and 3b illustrate the elbow prosthesis according to the invention in an assembled condition, seen from the side and from the rear along the axis of the ulnar component respectively and with the clip inserted.
- the head 21 of the ulnar component 2 forms a bifurcated structure with two horns 22,23, the ends of which project somewhat beyond a diameter in the fork arc.
- fig. 3a and 3b it is shown how the ends 41 ,42 of a C-ring-like clip 4 can engage with the head 21 of the ulnar component, the ends 41 ,42 of the clip being inserted into and in abutment with the grooves 24,25 on the horn 22,23 of the ulnar component and engaging with the blind holes 26,27 in the horns.
- This C-ring-like clip 4 is illustrated in more detail in fig. 2a-2c.
- the clip 4 is in the form of an approximately 40 mm long sheet component of, e.g. a titanium alloy and normally has a cross section of approxi ⁇ mately 1.5 by 3 mm.
- the ends 41 ,42 of the clip are extended to form a semicir ⁇ cular sheet component with a diameter of approximately 5 mm.
- the clip 4 is bent into a C-ring shape as illustrated in fig. 2c, the arc 43 in the C-ring being substantially composed of a slightly wider section of the clip, while between this section and the ends 41 ,42, the clip is made somewhat narrower in order to provide optimum strength and elasticity.
- the inside of the arc 43 on the clip 4 can be polished on those surfaces which can enter into contact with the spindle 34 on the humeral component 3 in order to prevent unnecessary wear.
- the ends 41 ,42 of the clip 4 are inserted into the grooves 24,25 in the horns 22,23 on the ulnar component 2, as shown in fig. 3a and 3b, these grooves being provided approximately diametrically opposite each other in relation to the joint centre of the ulnar component.
- the clip 4 is passed over the spindle 34 which is mounted on the humeral component 3 and locks it to the ulnar component 2, the ends 41 ,42 of the clip engaging in the blind holes 26,27 on the ulnar component.
- the groove 24,25 in each of the horns 22,23 has a width corresponding to that of the clip, thus ensuring that after being attached the clip 4 will remain securely in place without the occurrence of any lateral movements which may cause wear.
- the arc 43 in the clip 4 is made wide enough to permit sufficient mobility between the humeral component 3 with the spindle 34 and the ulnar component 2 and a suitable elasticity to ensure that the clip 4 is securely attached when its ends 41 ,42 have engaged with the blind holes 26,27 on the horn 22,23 of the ulnar component.
- the ulnar component 2 is thereby securely attached to the humeral component 3 and holds the spindle 34 of the humeral component in a secure grip, while at the same time some play is permitted in the actual joint connection, a vital circumstance for the functional characteristics of the prosthesis.
- the mounted prosthesis with the clip 4 in place is illustrated in figs. 3a and 3b and fig. 3a clearly shows the clearance 5 between the spindle 34 and the arc 43 of the clip and also that the ends of the horns 22,23 on the ulnar component 2 project somewhat above a diameter on the spindle 34, e.g. approximately 5 mm beyond this diameter. This means that the clip 5 cannot work loose or fall off unless it breaks.
- Any tension load on the clip 4 will in fact act outwards through the middle of the arc 43 of the clip and the tension load will therefore only help to further tighten the clip.
- the ends of the clip will never be able to be pushed out of the bores by the forces acting on the prosthesis during use.
- the clip and the other metal components in the prosthesis are made of tissue- compatible material, preferably titanium alloy, as are the other metal components in the prosthesis, thus making the prosthesis very strong and durable, e.g. it has a tensile strength of several thousand kilonewton.
- the ulnar component 2 and the clip 4 are designed in such a manner that the clip can be fitted at any time in the course of an operation, even after the actual prosthesis has been cemented into the bones and the joint put in place. Similarly, the clip can also be easily removed if it subsequently proves to be unnecessary, possibly by means of a subsequent operation.
- an elbow prosthesis which can also be used where the ligaments are not adequate, thereby eliminating any risk of the prosthesis coming out of joint.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94907720A EP0683650B1 (en) | 1993-02-10 | 1994-02-09 | Elbow prosthesis |
US08/501,115 US5723015A (en) | 1993-02-10 | 1994-02-09 | Elbow prosthesis |
AU61167/94A AU6116794A (en) | 1993-02-10 | 1994-02-09 | Elbow prosthesis |
DE69403194T DE69403194T2 (en) | 1993-02-10 | 1994-02-09 | ELBOW PROSTHESIS |
FI953778A FI953778A (en) | 1993-02-10 | 1995-08-09 | Kyynerpääproteesi |
LVP-95-277A LV11270B (en) | 1993-02-10 | 1995-09-11 | Elbow prosthesis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO930460 | 1993-02-10 | ||
NO930460A NO176643C (en) | 1993-02-10 | 1993-02-10 | elbow prosthesis |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994017758A1 true WO1994017758A1 (en) | 1994-08-18 |
Family
ID=19895819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1994/000033 WO1994017758A1 (en) | 1993-02-10 | 1994-02-09 | Elbow prosthesis |
Country Status (10)
Country | Link |
---|---|
US (1) | US5723015A (en) |
EP (1) | EP0683650B1 (en) |
AT (1) | ATE152901T1 (en) |
AU (1) | AU6116794A (en) |
CA (1) | CA2155761A1 (en) |
DE (1) | DE69403194T2 (en) |
FI (1) | FI953778A (en) |
LV (1) | LV11270B (en) |
NO (1) | NO176643C (en) |
WO (1) | WO1994017758A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2793404B1 (en) * | 1999-05-14 | 2001-09-14 | Tornier Sa | ELBOW PROSTHESIS |
FR2826860B1 (en) * | 2001-07-09 | 2004-03-05 | Tornier Sa | ANCILLARY OF POSITION OF A CUBITAL COMPONENT AND / OR A RADIAL COMPONENT OF ELBOW PROSTHESIS |
FR2855397B1 (en) | 2003-05-28 | 2005-07-15 | Tornier Sa | ELBOW PROSTHESIS |
WO2005086939A2 (en) | 2004-03-11 | 2005-09-22 | Acumed Llc | Systems for bone replacement |
ATE538762T1 (en) | 2006-06-28 | 2012-01-15 | Mayo Foundation | PROSTHETIC ELBOW REPLACEMENT |
US8968411B2 (en) * | 2009-12-17 | 2015-03-03 | Zimmer, Inc. | Modular elbow prosthesis |
US10201374B2 (en) | 2012-06-22 | 2019-02-12 | Zimmer, Inc. | Assembly tool for a prosthesis |
US8936647B2 (en) | 2012-06-22 | 2015-01-20 | Zimmer, Inc. | Elbow prosthesis |
GB2507640B (en) | 2012-09-10 | 2015-08-26 | Acumed Llc | Radial head prosthesis with floating articular member |
US9289304B1 (en) | 2013-03-28 | 2016-03-22 | Robert A. Kaufmann | Prosthesis for partial and total joint replacement |
CN104887357B (en) * | 2015-06-29 | 2017-04-26 | 北京贝思达生物技术有限公司 | Artificial elbow joint |
US9763792B2 (en) | 2015-10-01 | 2017-09-19 | Acumed Llc | Radial head prosthesis with rotate-to-lock interface |
CN105167890B (en) * | 2015-10-26 | 2017-04-12 | 北京威高亚华人工关节开发有限公司 | Multifunctional elbow joint replacement prosthesis |
US10828147B1 (en) | 2018-01-21 | 2020-11-10 | Robert A. Kaufmann | Ligament retention device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3816854A (en) * | 1973-07-03 | 1974-06-18 | A Schlein | Prosthesis for total arthroplasty of the elbow joint |
AT331384B (en) * | 1973-06-22 | 1976-08-25 | Krosbacher Hubert Dr | IMPLANT OR TOTAL ENDO PROSTHESIS JOINT |
US4383337A (en) * | 1980-10-22 | 1983-05-17 | Zimmer Usa, Inc. | Elbow prosthesis |
DE2351912C2 (en) * | 1972-10-19 | 1983-07-07 | National Research Development Corp., London | Joint endoprosthesis |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE793409A (en) * | 1972-01-14 | 1973-04-16 | Herbert Jules J M E | NEW TOTAL KNEE PROSTHESIS |
US3760427A (en) * | 1972-03-24 | 1973-09-25 | R Schultz | Surgically implantable prosthetic joint |
US3934272A (en) * | 1974-11-19 | 1976-01-27 | The University Of Melbourne | Knee prosthesis |
US4059854A (en) * | 1977-01-03 | 1977-11-29 | Laure Prosthetics, Inc. | Ribbed finger joint implant |
DE3223925C2 (en) * | 1982-06-26 | 1986-07-31 | Feldmühle AG, 4000 Düsseldorf | Implantable elbow joint |
IT1219818B (en) * | 1988-01-22 | 1990-05-24 | Salus Srl | ARTIFICIAL ARTICULATION, IN PARTICULAR KNEE ARTICULATION |
US5370701A (en) * | 1990-09-28 | 1994-12-06 | Arch Development Corporation | Rotating/sliding contrained prosthetic knee |
AU1898392A (en) * | 1991-08-06 | 1993-03-02 | Donald R. Huene | Bi-axial elbow joint replacement |
-
1993
- 1993-02-10 NO NO930460A patent/NO176643C/en not_active IP Right Cessation
-
1994
- 1994-02-09 DE DE69403194T patent/DE69403194T2/en not_active Expired - Fee Related
- 1994-02-09 WO PCT/NO1994/000033 patent/WO1994017758A1/en active IP Right Grant
- 1994-02-09 CA CA2155761A patent/CA2155761A1/en not_active Abandoned
- 1994-02-09 EP EP94907720A patent/EP0683650B1/en not_active Expired - Lifetime
- 1994-02-09 US US08/501,115 patent/US5723015A/en not_active Expired - Fee Related
- 1994-02-09 AU AU61167/94A patent/AU6116794A/en not_active Abandoned
- 1994-02-09 AT AT94907720T patent/ATE152901T1/en not_active IP Right Cessation
-
1995
- 1995-08-09 FI FI953778A patent/FI953778A/en unknown
- 1995-09-11 LV LVP-95-277A patent/LV11270B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2351912C2 (en) * | 1972-10-19 | 1983-07-07 | National Research Development Corp., London | Joint endoprosthesis |
AT331384B (en) * | 1973-06-22 | 1976-08-25 | Krosbacher Hubert Dr | IMPLANT OR TOTAL ENDO PROSTHESIS JOINT |
US3816854A (en) * | 1973-07-03 | 1974-06-18 | A Schlein | Prosthesis for total arthroplasty of the elbow joint |
US4383337A (en) * | 1980-10-22 | 1983-05-17 | Zimmer Usa, Inc. | Elbow prosthesis |
Also Published As
Publication number | Publication date |
---|---|
NO930460D0 (en) | 1993-02-10 |
US5723015A (en) | 1998-03-03 |
ATE152901T1 (en) | 1997-05-15 |
NO176643B (en) | 1995-01-30 |
EP0683650B1 (en) | 1997-05-14 |
NO176643C (en) | 1995-05-10 |
LV11270B (en) | 1996-12-20 |
DE69403194D1 (en) | 1997-06-19 |
EP0683650A1 (en) | 1995-11-29 |
FI953778A0 (en) | 1995-08-09 |
NO930460L (en) | 1994-08-11 |
CA2155761A1 (en) | 1994-08-18 |
DE69403194T2 (en) | 1997-12-04 |
AU6116794A (en) | 1994-08-29 |
FI953778A (en) | 1995-09-12 |
LV11270A (en) | 1996-06-20 |
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