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1. 发明专利

JPH10192312A ARTIFICIAL ACETABULAR ROOF, SCREW FOR FIXING ARTIFICIAL ACETABULAR ROOF AND ARTIFICIAL HIP JOINT 失效
公开(公告)号：JPH10192312A
公开(公告)日：1998-07-28
申请号：JP41597
申请日：1997-01-06
申请人： TAKEI TSUNENORI , YAMADA HAJIME , ASAHI OPTICAL CO LTD
发明人： TAKEI TSUNENORI , YAMADA HAJIME , KOJIMA SATOSHI , NAKASU MASANORI
IPC分类号： A61B17/58 , A61F2/00 , A61F2/02 , A61F2/30 , A61F2/32 , A61F2/34 , A61F2/36 , A61L27/00
摘要： PROBLEM TO BE SOLVED: To make an artificial acetabular roof thin without impairing its strength and to make it possible to increase the diameter of its central cavity part by forming the artificial acetabular roof of a composite contg. a calcium phosphate-based compd. and an in vivo absorptive high polymer. SOLUTION: This artificial acetabular roof is obtd. by forming plural lock screw insertion holes 11 at approximately equal angular spacings to a ceiling part consisting of part of the spherical surface of a shell body 10 having a hemispherical shape. A notch 12 made to meet the shape of the acetabular roof of the human body is formed toward the ceiling part from part of the open end face. This hemispherical shell body 10 and the lock screw are formed of a material contg. the calcium phosphate-based compd. in vivo absorptive high polymer. For example, a hydroxyapatite slurry is synthesized by a wet process by a known method and is granulated by drying, pulverizing and calcining. The shell body 10 is formed by injection molding a mixture composed of such granules and powdery polylactic acid. As a result, the strength is improved and the formation of the thin acetabular roof is made possible.

2. 发明专利

JPH0910245A PLUG FOR FIXING LIGAMENT 失效
公开(公告)号：JPH0910245A
公开(公告)日：1997-01-14
申请号：JP16265295
申请日：1995-06-28
申请人： TAKEI TSUNENORI , YAMADA HAJIME , ASAHI OPTICAL CO LTD
发明人： TAKEI TSUNENORI , YAMADA HAJIME
IPC分类号： A61L27/00 , A61F2/08
摘要： PURPOSE: To make it possible to obtain fixability right after operation by specifying the max. diameter and length of a plug for fixing the ligament consisting of a material having the vital affinity to be inserted into a hole in order to press the artificial ligament into the inner peripheral edge of the hole to specific values and forming the plug of a cylindrical body having a blind hole or through hole of a specific diameter in the central part. CONSTITUTION: This plug 11 for fixing the ligament has a fixed diameter part 12 and a tapered part 13 having a converging front end and is formed with plural annular grooves 14 around the fixed diameter part 12. The through hole 15 is formed in the central part of the plug 11 for fixing the ligament. The diameter ϕ and length L of the plug 11 for fixing the ligament are so set that the artificial ligament is fixed at a large-diameter tunnel hole. The diameter ϕin the reconstruction of the artificial ligament is set at 5 to 15mm and the length L at >=10mm. The diameter ϕ of the through hole 15 or the blind hole is set at 2 to 4mm. The plug for fixing the ligament is capable of stably fixing the artificial ligament along the osteotunnel right after the operation and, therefore, the rehabilitation in an early period is possible.

3. 发明专利

DE60113483T2 未知
公开(公告)号：DE60113483T2
公开(公告)日：2006-07-06
申请号：DE60113483
申请日：2001-07-17
申请人： TAKEI TSUNENORI , NAKASHIMA PROPELLER CO , YAMADA HAJIME
发明人： TAKEI TSUNENORI
IPC分类号： A61F2/30 , A61F2/38 , A61F2/00
摘要： An artificial knee joint comprising: a femoral component (1) comprising a femoral condylar portion (8) made of a medial condylar section (8a) and a lateral condylar section (8b) which extend in an anteroposterior direction of the knee joint and have convex exterior surfaces, and a tibial component comprising a tibial condylar portion (11) made of a medial condylar section (11a) and a lateral condylar section (11b) which extend in an anteroposterior direction of the knee joint and have concave interior surfaces so as to slidably receive the medial and lateral condylar sections (8a,8b) of the femoral condylar portion (8) therein; and a space between the respective medial and lateral condylar sections (8a,8b) of the femoral condylar portion (8) and of the tibial condylar portion (11) being formed so as to be gradually narrower toward the rear side of the knee joint, thus forming a "rear-in" configuration.

4. 发明专利

DE60113483D1 未知
公开(公告)号：DE60113483D1
公开(公告)日：2005-10-27
申请号：DE60113483
申请日：2001-07-17
申请人： TAKEI TSUNENORI , NAKASHIMA PROPELLER CO , YAMADA HAJIME
发明人： TAKEI TSUNENORI
IPC分类号： A61F2/30 , A61F2/00 , A61F2/38
摘要： An artificial knee joint comprising: a femoral component (1) comprising a femoral condylar portion (8) made of a medial condylar section (8a) and a lateral condylar section (8b) which extend in an anteroposterior direction of the knee joint and have convex exterior surfaces, and a tibial component comprising a tibial condylar portion (11) made of a medial condylar section (11a) and a lateral condylar section (11b) which extend in an anteroposterior direction of the knee joint and have concave interior surfaces so as to slidably receive the medial and lateral condylar sections (8a,8b) of the femoral condylar portion (8) therein; and a space between the respective medial and lateral condylar sections (8a,8b) of the femoral condylar portion (8) and of the tibial condylar portion (11) being formed so as to be gradually narrower toward the rear side of the knee joint, thus forming a "rear-in" configuration.

5. 发明专利

GB2376416B Surgical instrument and apparatus 未知
公开(公告)号：GB2376416B
公开(公告)日：2004-08-25
申请号：GB0208303
申请日：2002-04-10
申请人： ASAHI OPTICAL CO LTD , PENTAX CORP , TAKEI TSUNENORI
发明人： TAKEI TSUNENORI , TANIGUCHI YUKIO , TOMINAGA YOSHIE , ASAHI KOGAKU KOGYO KABUSHIKI K
IPC分类号： A61B17/56 , A61B17/17 , A61F2/08 , A61B17/00
摘要： There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.

6. 发明专利

DE10216251A1 未知
公开(公告)号：DE10216251A1
公开(公告)日：2002-10-17
申请号：DE10216251
申请日：2002-04-12
申请人： ASAHI OPTICAL CO LTD , TAKEI TSUNENORI
发明人： TAKEI TSUNENORI , TANIGUCHI YUKIO , TOMINAGA YOSHIE
IPC分类号： A61B17/56 , A61B17/17 , A61F2/08 , A61B17/00
摘要： There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.

7. 发明专利

JP2002028170A ARTIFICIAL KNEE JOINT 失效
公开(公告)号：JP2002028170A
公开(公告)日：2002-01-29
申请号：JP2000218220
申请日：2000-07-19
申请人： TAKEI TSUNENORI , NAKASHIMA PROPELLER CO LTD , YAMADA HAJIME
发明人： TAKEI TSUNENORI
IPC分类号： A61F2/30 , A61F2/00 , A61F2/38
摘要： PROBLEM TO BE SOLVED: To provide an artificial knee joint capable of deeply bending by light force without damaging organizations around. SOLUTION: In this artificial knee joint comprising a thighbone component composed of a right and a left protruded surfaces continuously provided at the front and the rear respectively to be an inner condyle part and an outer condyle part to form a thighbone condyle part, and a tibia component comprising an inner condyle part and an outer condyle part to form a tibia condyle part in which concave surfaces are continuously provided at the front and the rear to support the inner condyle part and the outer condyle part to be capable of sliding and rolling, the interval between the inner condyle part and the outer condyle part of the thighbone condyle part and the tibia condyle part is set narrower on the rearer side, that is, to be rear-in.

8. 发明专利

JP2002306498A SURGICAL INSTRUMENT 失效
公开(公告)号：JP2002306498A
公开(公告)日：2002-10-22
申请号：JP2001114426
申请日：2001-04-12
申请人： TAKEI TSUNENORI , ASAHI OPTICAL CO LTD
发明人： TAKEI TSUNENORI , TANIGUCHI YUKIO , TOMINAGA YOSHIE
IPC分类号： A61B17/56 , A61B17/17 , A61F2/08
摘要： PROBLEM TO BE SOLVED: To provide a surgical instrument which enables easily and accurately setting of a bone plug in vivo. SOLUTION: The surgical instrument 1 pushes the bone plug into a hole formed in a bone (bone tunnel) and is provided with a bar-like body 2, a pressing member (pressing part) 3 which is provided at the tip part of the body 2 to press the bone plug, a guide hole 4 formed along the length of the body 2 and a guide wire inserted through the guide hole 4. The pressing member 3 is detachably mounted on the body 2 and a cup-like contact part 32 is provided on the side of the tip thereof. The base end of the guide hole 4 is released to a side hole 23 formed in the outer circumferential surface of the body 2 and the tip thereof released into a recessed part 33 formed at the contact part 32.

9. 发明专利

JPH11113940A RESECT-ASSISTING UTENSIL FOR KNEE JOINT 失效
公开(公告)号：JPH11113940A
公开(公告)日：1999-04-27
申请号：JP29358497
申请日：1997-10-09
申请人： TAKEI TSUNENORI
发明人： TAKEI TSUNENORI
IPC分类号： A61B17/56 , A61B17/15 , A61F2/46
摘要： PROBLEM TO BE SOLVED: To facilitate the resecting of a bone when a knee joint is replaced with an artificial joint by a method wherein the other end of an alignment bar, one end of which is inserted in a drilled hole provided in the bone axial direction of the neck of femur, is supported to a guide main body by a supporting member, and the supporting member is provided movably on a plane which crosses the alignment bar. SOLUTION: At the time of resecting of the front and rear surfaces of the neck of femur, a femur drilled hole 111 is provided by using a drill at the center in the bone axial direction of the neck of femur, and one end of an alignment bar 16 of this resect-assisting utensil 10 is inserted in the drilled hole 111, and to the other end of the alignment bar 16 after the insertion, a guide main body 12 is attached on a supporting member 17. Then, a depth gauge 20 is inserted in a supporting through hole 15b of a rectangular protuberance 15a, and a localization in the length direction is performed. Then, a localization in the width direction is performed in such a manner that the tip end of the depth gauge 20 may come into linear (planar) contact with the bone surface of the distal end of the femur. Then, the removing of the neck 116 of femur is performed based on specified location and angle. The resecting is performed by inserting a saw body in a front surface guide 14a and a rear surface guide 14b.

10. 发明专利

FR2823436B1 未知
公开(公告)号：FR2823436B1
公开(公告)日：2005-03-04
申请号：FR0204619
申请日：2002-04-12
申请人： ASAHI OPTICAL CO LTD
发明人： TAKEI TSUNENORI , TANIGUCHI YUKIO , TOMINAGA YOSHIE
IPC分类号： A61B17/56 , A61B17/17 , A61F2/08
摘要： There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.

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