Source: http://www.google.com/patents/US6361566?dq=patent:7076806
Timestamp: 2014-07-14 00:57:19
Document Index: 409899800

Matched Legal Cases: ['art.\n4', 'art 1', 'art 3', 'art 5', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 5', 'art 3', 'art 3', 'art 57', 'art 1', 'art 57', 'art 57', 'art 57', 'art 55']

Patent US6361566 - Hip prosthesis - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsThere is disclosed a hip prosthesis to replace a damaged hip-joint. The hip prosthesis is intended to be disposed at one end thereof into a cup-shaped cavity of an acetabulum and at the other end thereof into a femur canal of a person suffering from a damaged hip-joint. The hip prosthesis comprises an...http://www.google.com/patents/US6361566?utm_source=gb-gplus-sharePatent US6361566 - Hip prosthesisAdvanced Patent SearchPublication numberUS6361566 B1Publication typeGrantApplication numberUS 09/522,932Publication dateMar 26, 2002Filing dateMar 10, 2000Priority dateMar 10, 2000Fee statusLapsedPublication number09522932, 522932, US 6361566 B1, US 6361566B1, US-B1-6361566, US6361566 B1, US6361566B1InventorsBashar Al-HafezOriginal AssigneeBashar Al-HafezExport CitationBiBTeX, EndNote, RefManPatent Citations (21), Referenced by (18), Classifications (49), Legal Events (7) External Links: USPTO, USPTO Assignment, EspacenetHip prosthesisUS 6361566 B1Abstract There is disclosed a hip prosthesis to replace a damaged hip-joint. The hip prosthesis is intended to be disposed at one end thereof into a cup-shaped cavity of an acetabulum and at the other end thereof into a femur canal of a person suffering from a damaged hip-joint. The hip prosthesis comprises an acetabulum part having a cotyloid member to be tightly engaged into the acetabulum, an elongated neck part, and a femur part. The elongated neck part has an articulation head at one end thereon, the head being shaped to be articulately received in the acetabulum part, and a slidable connection at the other end thereof for engagement with the femur part. The femur part has a femur canal insertable portion formed with an arrangement to secure same in the femur canal by being embedded in regenerated bone marrow, and an engaging channel to receive the slidable connection of the elongated neck part and to securely connect the elongated neck part to the femur part.
4. A hip prosthesis according to claim 3, wherein said peripheral flanges are each formed with a plurality of outwardly projecting points, said projecting point forming an angle of between about 30 and 60� with respect to a tangent at the location of a respective projecting point.
13. A hip prosthesis according to claim 12 wherein said femur canal insertable portion extends from said shank portion at an angle of about 15� and from said sliding member at an angle of about 45�.
14. A hip prosthesis according to claim 13, wherein said acetabulum part comprises a hollow truncated half sphere having a flat face, triangular openings formed in said flat face to permit growth of bone cells into said hollow truncated half sphere, and screw holes along lower edge of said hollow truncated half sphere at about 45�.
SUMMARY OF THE INVENTION In order to overcome the above disadvantages, there is provided a hip prosthesis to replace a damaged hip-joint, the hip prosthesis to be disposed at one end thereof into a cup-shaped cavity of an acetabulum and at the other end thereof into a femur canal of a person suffering from a damaged hip-joint. The hip prosthesis comprises
In accordance with a preferred embodiment, the peripheral flanges are each formed with a plurality of outwardly projecting points which may be regularly distributed along each flange, each projecting point forming an angle of between about 30 and 60�, preferably about 45� with respect to a tangent at the location of a respective projection point. Preferably, the projection points are oriented in a way to be engaged within the acetabulum when rotating the acetabulum part clockwise.
In accordance with yet another embodiment, femur canal insertable portion angularly extends from the shank portion and the sliding member, for example the femur canal insertable portion extends from the shank portion at an angle of about 15� and from said sliding member at an angle of about 45�.
In accordance with yet another embodiment, the acetabulum part comprises a hollow truncated half sphere having a flat face, triangular openings being formed in the flat face to permit growth of bone cells into the hollow truncated half sphere, and screw holes along the lower edge of the hollow truncated half sphere oriented at about 45�. In this case, the buffer member is preferably spaced from the walls of the hollow truncated half sphere wherein bone cells can be permitted to grow.
BRIEF DESCRIPTION OF DRAWINGS The invention will be understood more fully from the following detailed description of embodiments which are given only for the purpose of illustration and without limitation. In the drawings:
DESCRIPTION OF PREFERRED EMBODIMENTS With reference to the drawings, the hip prosthesis which is illustrated, generally comprises an acetabulum part 1, a neck part 3 and a femur part 5. Acetabulum part 1 appears as a semi-spherical cup-shaped element which, as will be appreciated by one skilled in the art, is shaped to fit exactly in the acetabulum (not illustrated) of a person who suffers from a damaged hip-joint.
More specifically, acetabulum part 1, has a semi-spherical cavity 7 therein to receive a buffer member 9 which will be described later. The outer surface of acetabulum part 1 has a series, here three, of peripheral flanges 11, 13, 15 formed by indenting outwardly projecting points 17 which all form an angle of about 30 to 60� preferably 45� with respect to the tangent at the location of a respective point, and project in the same direction. It will obviously be noted that from the edge 19 of acetabulum part 1 to base 21 thereof, flanges 11, 13, 15 are parallel to one another and decrease in diameter as shown. In order to fixedly dispose acetabulum part 1 within the cavity defined by the acetabulum (not shown) of a person suffering from a damaged hip-joint, it is placed therein and rotated clockwise where projecting points 17 will hold acetabulum part 1 firmly into the acetabulum without any possibility of becoming dislodged therefrom. Preferably, an antibiotic cement composition is also used.
To reinforce acetabulum part 1 in place within the cavity of the acetabulum, four screw holes 23 are provided along the lower edge of acetabulum part, at a 45� angle enabling screws (not shown ) to penetrate surrounding bones (not shown) thereby further reinforcing acetabulum part 1 in place within the cavity of the acetabulum.
With reference to FIG. 3, the portion of femur part 5 which is adapted to be introduced into the femur canal, will now be described. It consists of a slide member 41 which has an inverted T-shaped channel 43 formed therein and shaped to receive inverted T-shaped connection 35. In the continuation of slide member 41, femur part 3 consists of a shank portion 45 which extends from slide member at an angle of about 30�. Finally, femur part 3 is terminated by a femur canal insertable portion 47 which will now be more specifically described and which extends from shank portion at an angle of about 15�. This is all well illustrated in FIG. 4 of the drawings.
Finally, as an alternative to the acetabulum part described with reference to FIGS. 1 and 2, reference will be made to FIGS. 5 and 6. In this case, acetabulum part 57 is in the shape of a truncated half sphere without indentations, although, similar indentations as in the case of acetabulum part 1 may also be provided. In acetabulum part 57, there is a flat face 59 which is formed with four triangular openings 61. This particular arrangement promotes the growth of bone tissue through the openings, thereby ensuring a firm placement of part 57 in the acetabulum while preventing it from becoming unlocked therefrom after being in place for a while. To fix acetabulum part 57 in the acetabulum, four screw holes 63 are provided at 45�. It will be noted that in this case buffer member 9 is spaced from the walls of acetabulum part 55 to facilitate the growth of bone cells through openings 61.
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TarabishyJoint prosthesis and method for placementUS7060102Jan 21, 2004Jun 13, 2006Thompson Matthew TFemoral implant for hip arthroplastyUS7135044Mar 9, 2004Nov 14, 2006Howmedics Osteonics Corp.Modular prosthesis kitsUS7520902 *Mar 24, 2005Apr 21, 2009Benoist Girard SasProsthetic femoral jointUS7914584Oct 20, 2005Mar 29, 2011Biomet Manufacturing Corp.Prosthesis system with trunnion and removably coupled headUS8002838Jun 11, 2008Aug 23, 2011Depuy Products, Inc.Joint prosthesis with positionable headUS8048167 *Aug 30, 2005Nov 1, 2011Depuy Products, Inc.Orthopaedic implant kit, orthopaedic surgery kit and associated methodUS8273093Jun 29, 2004Sep 25, 2012Depuy Products, Inc.Instrumentation for recording and replicating orthopaedic implant orientationUS8419798Dec 30, 2003Apr 16, 2013Depuy Products, Inc.Joint prosthesis with infinitely positionable headUS8444698 *Dec 29, 2004May 21, 2013Depuy Products, Inc.Joint prosthesis with infinitely positionable headUS8460390Dec 29, 2004Jun 11, 2013Depuy Products, Inc.System and method for replicating orthopaedic implant orientationUS8562686Jul 16, 2012Oct 22, 2013DePuy Synthes Products, LLCJoint prosthesis with infinitely positionable headUS8585711Aug 29, 2012Nov 19, 2013DePuy Synthes Products, LLCInstrumentation for recording and replicating orthopaedic implant orientationUS8679185Sep 30, 2005Mar 25, 2014DePuy Synthes Products, LLCJoint prosthesis with positionable headUS20070050039 *Aug 30, 2005Mar 1, 2007Dietz Terry LOrthopaedic implant, stem and associated methodUS20100249943 *Oct 1, 2008Sep 30, 2010Smith & Nephew, Inc.Modular necks for orthopaedic devicesUS20120109327 *Jul 12, 2010May 3, 2012Milux Holding SaHip joint deviceEP1566155A1 *Nov 30, 2004Aug 24, 2005Roger BadetHip prosthesis with modular neck* Cited by examinerClassifications U.S. Classification623/22.15, 623/22.4International ClassificationA61F2/30, A61F2/34, A61F2/36, A61F2/00, A61F2/32Cooperative ClassificationA61F2002/30827, A61F2230/0019, A61F2002/30797, A61F2002/30159, A61F2/367, A61F2230/0023, A61F2250/0026, A61F2002/30158, A61F2002/30507, A61F2002/30785, A61F2310/00011, A61F2002/30322, A61F2220/005, A61F2/3662, A61F2/3676, A61F2220/0025, A61F2230/0028, A61F2002/30449, A61F2/36, A61F2002/30153, A61F2002/3625, A61F2002/30383, A61F2002/30326, A61F2002/3424, A61F2002/3652, A61F2250/0036, A61F2230/0026, A61F2002/30324, A61F2002/3438, A61F2/32, A61F2002/369, A61F2002/30156, A61F2002/30787, A61F2002/3401, A61F2250/0037, A61F2002/3611, A61F2310/00179, A61F2002/30808, A61F2310/00023, A61F2230/0052, A61F2002/30172European ClassificationA61F2/32Legal EventsDateCodeEventDescriptionMay 13, 2014FPExpired due to failure to pay maintenance feeEffective date: 20140326Mar 26, 2014LAPSLapse for failure to pay maintenance feesNov 1, 2013REMIMaintenance fee reminder mailedMar 25, 2010FPAYFee paymentYear of fee payment: 8Mar 25, 2010SULPSurcharge for late paymentYear of fee payment: 7Nov 2, 2009REMIMaintenance fee reminder mailedSep 26, 2005FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google