WO2006016207A1 - Hip prosthesis with anatomically bent shank - Google Patents
Hip prosthesis with anatomically bent shank Download PDFInfo
- Publication number
- WO2006016207A1 WO2006016207A1 PCT/IB2005/001835 IB2005001835W WO2006016207A1 WO 2006016207 A1 WO2006016207 A1 WO 2006016207A1 IB 2005001835 W IB2005001835 W IB 2005001835W WO 2006016207 A1 WO2006016207 A1 WO 2006016207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shank
- hip prosthesis
- femur
- longitudinal axis
- prosthesis according
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3601—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
-
- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30154—Convex polygonal shapes square
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3654—Connections of heads directly to shafts
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2002/3678—Geometrical features
- A61F2002/3686—Geometrical features bent
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0021—Angular shapes square
Definitions
- This invention relates to the technological sector dedicated to the manufacture of hip prostheses.
- these prostheses comprise a shank bearing the joint prosthesis proper which is inserted into the patient's femur.
- This operation is carried out by coaxially inserting the shank into the diaphysis of the femur after the entire head and neck of the same have been amputated.
- the inventor of this invention is of the opinion that this type of surgery is in many cases more destructive than is necessary, sacrificing the diaphysis bone and in particular the metaphysis part thereof, restricting or thus rendering more complex the possibility of subsequent limb prosthesis surgery.
- the inventor has conceived of a hip prosthesis with the shank formed in such a way that it can be inserted transversely into the neck of the femur after resection of the epiphysis alone has been performed.
- the shank of the hip prosthesis according to the invention is in fact designed in such a way that it can be inserted into the proximal part of the femur, causing it to pass through the cervical and large trochanter area, that is particularly within the cervical-trochanter area, without having to insert it coaxially into the diaphysis.
- the inventor has conceived a hip prosthesis which comprises a shank whose longitudinal axis follows a curved path substantially similar to the profile of the top part of the femur in the said cervical-trochanter area.
- the aforesaid longitudinal axis may comprise a curved section substantially reproducing the form of the said external profile of the cervical-trochanter area, or at least two consecutive straight segments not in line which approximately match the said shape substantially, with an upwards facing concavity.
- the longitudinal axis of the aforesaid shaft is, when inserted in the femur, approximately parallel to the profile of the cervical-trochanter area already described.
- the subject matter of this invention therefore comprises a hip prosthesis as described in appended Claim 1.
- Figure 1 is a diagrammatical longitudinal cross- section of part of a femur in which a prosthesis according to the invention has been inserted in which the longitudinal axis of the shank follows a curving path with an upward concavity,
- Figure 2 is a diagrammatical longitudinal cross- section of part of a femur in which a prosthesis according to the invention is inserted in which the longitudinal axis of the shank comprises two consecutive segments not in line which form an upward concavity,
- FIG. 3 is a perspective view of the hip prosthesis of the type of that in Figure 2, with a recess for better anchoring in the bony tissue.
- a hip prosthesis 1 according to the invention comprises a shank 2 to which there is connected a collar 6 of the modular type (only referred to in the drawing) designed to support a spherical head (not shown) .
- Said shank 2 is shaped in such a way that its longitudinal axis H-H comprises a curved length E, the shape and upward concavity of which is substantially similar to the outer profile P of the head of the femur 3 in the top part of its cervical-trochanter area 3a, which as is known comprises the cervical area 13 and the area of the great trochanter 14.
- Shank 2 thus runs transversely through the neck 13 of the femur remaining substantially parallel to the said profile P, and in order for it to be fitted it is only necessary to move epiphysis 15, indicated in the figure by a dashed line.
- hip prosthesis 1 Using a hip prosthesis 1 according to the invention it is therefore possible to achieve a reliable implant in the femur 3 of the patient without it being necessary to act destructively removing the metadiaphysis tissue, and this offers the advantages already illustrated above.
- FIGS 2, 3 illustrate another embodiment of a hip prosthesis 11 according to the invention, for which the same considerations as stated in the description of the previous case apply.
- prosthesis 11 in question shank 12 is shaped in such a way that its longitudinal axis Q-Q comprises two consecutive straight segments C, D which are not in line with each other.
- this longitudinal axis can be arranged in such a way that it runs approximately parallel to the abovementioned profile P, with the same results and the same advantages.
- a prosthesis provided with a shaft according to the invention in which the said longitudinal axis comprises a piece formed of a number of consecutive unaligned segments greater than 2 may be constructed. (This situation is not shown in the drawings) .
- shank 12 of the prosthesis according to the invention may be constructed having a square quadrangular cross-section comprising four faces in two parallel pairs 12a, 12b, 12c, 12d, in order to achieve the known advantages of resistance to torsional stresses.
- the inventor also provides the possibility of forming a recess 5 in the concave part of shank 12, which in this case comprises surface 12a in the top position, extending approximately the entire length of the shank in order to improve the reliability of the connection between the prosthesis and the bony tissue of the femur in a known way.
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
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/659,349 US20070250176A1 (en) | 2004-08-06 | 2005-06-08 | Hip Prosthesis with Anatomically Bent Shank |
CA002574818A CA2574818A1 (en) | 2004-08-06 | 2005-06-08 | Hip prosthesis with anatomically bent shank |
EP05750237A EP1788985A1 (en) | 2004-08-06 | 2005-06-08 | Hip prosthesis with anatomically bent shank |
JP2007524407A JP2008508919A (en) | 2004-08-06 | 2005-06-08 | Hip prosthesis with anatomically bent shanks |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01310/04A CH697329B1 (en) | 2004-08-06 | 2004-08-06 | hip prosthesis with a stem whose axis has a trend similar to the cervical-trochanteric hip profile. |
CH01310/04 | 2004-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006016207A1 true WO2006016207A1 (en) | 2006-02-16 |
Family
ID=35057027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/001835 WO2006016207A1 (en) | 2004-08-06 | 2005-06-08 | Hip prosthesis with anatomically bent shank |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070250176A1 (en) |
EP (1) | EP1788985A1 (en) |
JP (1) | JP2008508919A (en) |
CA (1) | CA2574818A1 (en) |
CH (1) | CH697329B1 (en) |
WO (1) | WO2006016207A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0622930D0 (en) * | 2006-11-16 | 2006-12-27 | Benoist Girard Sas | One-piece short femoral prosthesis |
JP5325504B2 (en) * | 2008-08-28 | 2013-10-23 | 京セラメディカル株式会社 | Hip prosthesis components |
ITRM20100036U1 (en) * | 2010-03-15 | 2011-09-16 | Paolo Palombi | FEMORAL PROSTHETIC STEM WITH DORSAL SOCKET |
FR2994077B1 (en) * | 2012-08-06 | 2015-06-12 | Univ Bordeaux 1 | CONDYLIAN PROSTHESIS FOR TEMPOROMANDIBULAR JOINT |
CN110151364A (en) * | 2019-07-01 | 2019-08-23 | 广东省新材料研究所 | A kind of hip prosthesis handle structure and preparation method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1981001510A1 (en) * | 1979-11-26 | 1981-06-11 | Rush Presbyterian St Luke | Hip prosthesis |
FR2528307A1 (en) * | 1982-06-14 | 1983-12-16 | Tornier Sa | Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur |
US6096084A (en) * | 1998-09-04 | 2000-08-01 | Biopro, Inc. | Modular ball and socket joint preferably with a ceramic head ball |
US6120544A (en) * | 1997-05-16 | 2000-09-19 | Eska Implants Gmbh & Co. | Femur endoprosthesis for articial hip joint |
US20030163202A1 (en) * | 2002-02-06 | 2003-08-28 | Lakin Ryan C. | Modular resurfacing prosthetic |
EP1407728A1 (en) * | 2002-10-07 | 2004-04-14 | Centerpulse Orthopedics Ltd. | Femoral head prosthesis |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2744628B1 (en) * | 1996-02-08 | 1998-04-17 | Deckner Andre Georges | PROSTHESIS ANCHOR ROD |
US6875239B2 (en) * | 2002-04-25 | 2005-04-05 | Medicinelodge, Inc. | Modular prosthesis for replacing bone and method |
-
2004
- 2004-08-06 CH CH01310/04A patent/CH697329B1/en not_active IP Right Cessation
-
2005
- 2005-06-08 US US11/659,349 patent/US20070250176A1/en not_active Abandoned
- 2005-06-08 CA CA002574818A patent/CA2574818A1/en not_active Abandoned
- 2005-06-08 EP EP05750237A patent/EP1788985A1/en not_active Withdrawn
- 2005-06-08 JP JP2007524407A patent/JP2008508919A/en active Pending
- 2005-06-08 WO PCT/IB2005/001835 patent/WO2006016207A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1981001510A1 (en) * | 1979-11-26 | 1981-06-11 | Rush Presbyterian St Luke | Hip prosthesis |
FR2528307A1 (en) * | 1982-06-14 | 1983-12-16 | Tornier Sa | Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur |
US6120544A (en) * | 1997-05-16 | 2000-09-19 | Eska Implants Gmbh & Co. | Femur endoprosthesis for articial hip joint |
US6096084A (en) * | 1998-09-04 | 2000-08-01 | Biopro, Inc. | Modular ball and socket joint preferably with a ceramic head ball |
US20030163202A1 (en) * | 2002-02-06 | 2003-08-28 | Lakin Ryan C. | Modular resurfacing prosthetic |
EP1407728A1 (en) * | 2002-10-07 | 2004-04-14 | Centerpulse Orthopedics Ltd. | Femoral head prosthesis |
Also Published As
Publication number | Publication date |
---|---|
JP2008508919A (en) | 2008-03-27 |
CH697329B1 (en) | 2008-08-29 |
US20070250176A1 (en) | 2007-10-25 |
EP1788985A1 (en) | 2007-05-30 |
CA2574818A1 (en) | 2006-02-16 |
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