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151. 发明专利

CZ224998A3 CLAMP FOR INSERTION AND PERMANENT ANCHORING WITHIN A CAVITY MADE IN BONE TISSUE 未知
公开(公告)号：CZ224998A3
公开(公告)日：1999-01-13
申请号：CZ224998
申请日：1997-01-16
申请人： ASTRA AB
发明人： ALBREKTSSON BJORN , CARLSSON LARS , JACOBSSON MAGNUS , ROSTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/58 , A61B17/74 , A61B17/86 , A61C8/00 , A61F2/00 , A61F2/28 , A61F2/30 , A61F2/32 , A61F2/36
摘要： The invention relates to a fixture for insertion into and permanent anchorage in a cavity (32) formed in bone tissue. The fixture is made of a fixture member (2), which has an insertion end surface (10) and a cylindrical peripheral surface (6) provided with screw threads, and a plurality of circumferentially-spaced cutting recesses (9), which are formed in a forward, self-tapping end portion (7) of the threaded peripheral surface (6) adjacent to the insertion end surface (10) and which open axially into the insertion end surface (10). A plurality of circumferentially-spaced tissue-collecting and tissue-distributing grooves (17) are formed in a rear, non-self-tapping portion (8) of the threaded peripheral surface (6). The grooves (17) open radially outwards and extend at least partially in the longitudinal direction of the fixture member (2), and each groove (17) is, at a forward end thereof, connected to one of the cutting recesses (9) for collecting cut-off bone material (B) circumferentially around the inner wall of the cavity (32) during the insertion of the fixture.

152. 发明专利

SE9804492D0 未知
公开(公告)号：SE9804492D0
公开(公告)日：1998-12-22
申请号：SE9804492
申请日：1998-12-22
申请人： ASTRA AB
发明人： ALBREKTSSON BJOERN , CARLSSON LARS , JACOBSSON MAGNUS , ROESTLUND TORD , WENNBERG STIG
IPC分类号： A61F2/00 , A61B17/56 , A61F2/28 , A61F2/30 , A61F2/38 , A61F
摘要： The invention provides a prosthesis structure for anchorage to the joint end of an articulatory part of a joint in a human or animal body which comprises an engagement element which presents a flat or a substantially flat engagement surface for engaging with a complementary joint end surface provided at the joint end and an elongate fixture connected to and spaced from the engagement surface for insertion into a complementary bore provided at the joint end at a distance from the joint end surface. The invention further provides that the elongate fixture forms an acute angle with the engagement surface.

153. 发明专利

AU5888098A Bone reamer for sharping bone sockets or cavities during orthopaedic surgery 未知
公开(公告)号：AU5888098A
公开(公告)日：1998-08-25
申请号：AU5888098
申请日：1998-01-21
申请人： ASTRA AB
发明人： ALBREKTSSON BJORN , CARLSSON LARS , JACOBSSON MAGNUS , ROSTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/16
摘要： The invention is directed to a reamer for shaping a bone socket such as an acetabular cavity. The reamer comprises a cutting head for removing material from the socket during rotation of the cutting head. The cutting head comprises a number of relatively long main cutting edges, each of which extends in a direction from a base to a top of the reamer, and a number, higher than the number of main cutting edges, of relatively short peripheral cutting edges, which are located at the base and distributed at angulary spaced intervals about a rotational axis. The invention also provides a method for implanting a prosthesis component into a bone socket. During shaping of the bone socket, a top portion of the reamer is completely received in the bone socket to such an extent, that a cylindrical entrance portion is formed in the socket. The invention also provides a kit including a reamer and a prosthesis.

154. 发明专利

NL1008164A1 未知
公开(公告)号：NL1008164A1
公开(公告)日：1998-08-03
申请号：NL1008164
申请日：1998-01-30
申请人： ASTRA AB
发明人： ALBREKTSSON BJOERN , CARLSSON LARS , JACOBSSON MAGNUS , ROESTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/16
摘要： The invention is directed to a reamer for shaping a bone socket such as an acetabular cavity. The reamer comprises a cutting head for removing material from the socket during rotation of the cutting head. The cutting head comprises a number of relatively long main cutting edges, each of which extends in a direction from a base to a top of the reamer, and a number, higher than the number of main cutting edges, of relatively short peripheral cutting edges, which are located at the base and distributed at angulary spaced intervals about a rotational axis. The invention also provides a method for implanting a prosthesis component into a bone socket. During shaping of the bone socket, a top portion of the reamer is completely received in the bone socket to such an extent, that a cylindrical entrance portion is formed in the socket. The invention also provides a kit including a reamer and a prosthesis.

155. 发明专利

ZA9800573B Reamer 未知
公开(公告)号：ZA9800573B
公开(公告)日：1998-07-31
申请号：ZA9800573
申请日：1998-01-23
申请人： ASTRA AB
发明人： ALBREKTSSON BJORN , JACOBSSON MAGNUS , WENNBERG STIG , CARLSSON LARS , ROSTLUND TORD
IPC分类号： A61B17/16 , A61B
CPC分类号： A61B17/1666 , Y10T407/1948 , Y10T407/1964

156. 发明专利

NO983235D0 未知
公开(公告)号：NO983235D0
公开(公告)日：1998-07-14
申请号：NO983235
申请日：1998-07-14
申请人： ASTRA AB
发明人： ALBREKTSSON BJOERN , CARLSSON LARS , JACOBSSON MAGNUS , ROESTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/58 , A61B17/74 , A61B17/86 , A61C8/00 , A61F2/00 , A61F2/28 , A61F2/30 , A61F2/32 , A61F2/36 , A61F
摘要： The invention relates to a fixture for insertion into and permanent anchorage in a cavity (32) formed in bone tissue. The fixture is made of a fixture member (2), which has an insertion end surface (10) and a cylindrical peripheral surface (6) provided with screw threads, and a plurality of circumferentially-spaced cutting recesses (9), which are formed in a forward, self-tapping end portion (7) of the threaded peripheral surface (6) adjacent to the insertion end surface (10) and which open axially into the insertion end surface (10). A plurality of circumferentially-spaced tissue-collecting and tissue-distributing grooves (17) are formed in a rear, non-self-tapping portion (8) of the threaded peripheral surface (6). The grooves (17) open radially outwards and extend at least partially in the longitudinal direction of the fixture member (2), and each groove (17) is, at a forward end thereof, connected to one of the cutting recesses (9) for collecting cut-off bone material (B) circumferentially around the inner wall of the cavity (32) during the insertion of the fixture.

157. 发明专利

IS4792A Festing og gerviliður sem inniheldur hana 未知
公开(公告)号：IS4792A
公开(公告)日：1998-07-01
申请号：IS4792
申请日：1998-07-01
申请人： ASTRA AB
发明人： ALBREKTSSON BJOERN , CARLSSON LARS , JACOBSSON MAGNUS , ROESTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/58 , A61B17/74 , A61B17/86 , A61C8/00 , A61F2/00 , A61F2/28 , A61F2/30 , A61F2/32 , A61F2/36

158. 发明专利

CZ9703623A3 METHOD OF DRILLING ELONGATED HOLE THROUGH HUMAN FEMUR COLUMN AND A TOOL INTENDED FOR MAKING THE METHOD 未知
公开(公告)号：CZ9703623A3
公开(公告)日：1998-06-17
申请号：CZ362397
申请日：1996-04-17
申请人： ASTRA AB
发明人： ALBREKTSSON BJORN , CARLSSON LARS , JACOBSSON MAGNUS , ROSTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/17 , A61F2/46
CPC分类号： A61B17/175

159. 发明专利

TR199701374T1 未知
公开(公告)号：TR199701374T1
公开(公告)日：1998-02-21
申请号：TR9701374
申请日：1996-04-17
申请人： ASTRA AB
发明人： ALBREKTSSON BJOM , CARLSSON LARS , JACOBSSON MAGNUS , ROSTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/17 , A61F2/46
摘要： PCT No. PCT/SE96/00490 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Apr. 17, 1996 PCT Pub. No. WO96/36285 PCT Pub. Date Nov. 21, 1996The invention relates to a drill guide instrument and method for guiding a drill tool (24) when drilling a longitudinal bore (4) through the neck (collum femoris) (5) of a human femur (9), subsequent to resection of the head (caput) (8) of the collum (5) along a cutting plane (P). The instrument comprises a drill guide (20), which is provided with a base member (21) and arranged to guide the drill tool (24) along a drill axis (B-B) relative to the base member (21), said base member (21) being intended to be applied against a cut end surface (11) of the collum (5) defining the cutting plane (P) for obtaining a predetermined orientation of the drill axis (B-B) relative to the cutting plane (P). A positioning member (22) extending from the drill guide (20) is intended to be contacted with the periphery of the narrowest portion (13) of the collum (5) in at least two circumferentially-spaced contact positions (30), so as to locate the drill axis (B-B) at a minimum distance from the periphery of said narrowest portion (13) of the collum (5). The invention also relates to the use of the instrument for performing such drilling.

160. 发明专利

NO975173L 未知
公开(公告)号：NO975173L
公开(公告)日：1997-11-11
申请号：NO975173
申请日：1997-11-11
申请人： ASTRA AB
发明人： ALBREKTSSON BJOERN , CARLSSON LARS , JACOBSSON MAGNUS , ROESTLUND TORD , WENNBERG STIG
IPC分类号： A61B17/56 , A61B17/17 , A61F2/46
摘要： PCT No. PCT/SE96/00490 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Apr. 17, 1996 PCT Pub. No. WO96/36285 PCT Pub. Date Nov. 21, 1996The invention relates to a drill guide instrument and method for guiding a drill tool (24) when drilling a longitudinal bore (4) through the neck (collum femoris) (5) of a human femur (9), subsequent to resection of the head (caput) (8) of the collum (5) along a cutting plane (P). The instrument comprises a drill guide (20), which is provided with a base member (21) and arranged to guide the drill tool (24) along a drill axis (B-B) relative to the base member (21), said base member (21) being intended to be applied against a cut end surface (11) of the collum (5) defining the cutting plane (P) for obtaining a predetermined orientation of the drill axis (B-B) relative to the cutting plane (P). A positioning member (22) extending from the drill guide (20) is intended to be contacted with the periphery of the narrowest portion (13) of the collum (5) in at least two circumferentially-spaced contact positions (30), so as to locate the drill axis (B-B) at a minimum distance from the periphery of said narrowest portion (13) of the collum (5). The invention also relates to the use of the instrument for performing such drilling.

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