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41. 发明专利

JPH07275244A ULTRASONIC ELECTRONIC ENDOSCOPE 失效
公开(公告)号：JPH07275244A
公开(公告)日：1995-10-24
申请号：JP6919294
申请日：1994-04-07
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI , NAKAJIMA MASAAKI
IPC分类号： A61B1/04 , A61B8/12
摘要： PURPOSE:To suppress the penetration of noise into an ultrasonic probe signal line from a solid image pickup signal line so as to obtain an electronic endoscope image by a solid image pickup element and an ultrasonic tomographic image by an electronic scanning type ultrasonic probe simultaneously in the desirable state. CONSTITUTION:A solid image pickup element signal line 29 is formed of coaxial lines, and the whole solid image pickup element signal line 29 are coated with plural shielding layers 292, 293. At least one layer between these layers 292, 293 is formed of a mesh tube formed by braiding wire material made of copper or a copper alloy.

42. 发明专利

JPH06304132A INJECTOR FOR ENDOSCOPE 失效
公开(公告)号：JPH06304132A
公开(公告)日：1994-11-01
申请号：JP9738293
申请日：1993-04-23
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI
IPC分类号： A61B1/00 , A61M5/14
摘要： PURPOSE:To provide a safe injector for an endoscope, in which the tip of an injection needle does not protrude against an operator's will, even in the case of the injector for an endoscope of a structure in which a long and slender injection needle extending over its overall length is inserted through in a jacket tube. CONSTITUTION:In the injector for an endoscope, constituted so that in a jacked tube 1 consisting of a flexible tube, one piece of injection needle 4 extending over its overall length is arranged so as to be freely movable forward and backward, and the tip of the injection needle 4 can be taken in and out to and from the tip of the jacket tube 1 by moving forward and backward the injection needle 4 from a base end side, frictional resistance adjusting means 13, 14 and 15 for adjusting frictional resistance force against a moving forward/ backward operation of the injection needle 4 are equipped in an operating part 2 attached on the base end part of the jacked tube 1.

43. 发明专利

JPH06169922A BALLOON MOUNTING METHOD FOR ULTRASONIC DIAGNOSTIC APPARATUS 失效
公开(公告)号：JPH06169922A
公开(公告)日：1994-06-21
申请号：JP32931592
申请日：1992-12-09
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI
IPC分类号： A61B8/12
摘要： PURPOSE:To provide a balloon mounting method for an ultrasonic diagnostic apparatus which enables the mounting of a balloon easily and accurately so as to expand larger in the direction of transmitting or receiving ultrasonic waves. CONSTITUTION:A balloon 6 free to expand is mounted surrounding an ultrasonic probe 2 provided at the tip 1 of an inserting part so that ultrasonic waves are transmitted or received being turned to a part of an examinee and a liquid is fed into the balloon 6 to expand it. In this balloon mounting method for an ultrasonic diagnosing apparatus, the balloon 6 is mounted at the tip 1 of the inserting part with the plane on the rear more tensioned as compared with the plane on the side in the direction 3 of transmitting or receiving the ultrasonic waves.

44. 发明专利

JPH05293105A 失效
公开(公告)号：JPH05293105A
公开(公告)日：1993-11-09
申请号：JP10437292
申请日：1992-04-23
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI , UEDA HIROHISA , SUGIYAMA AKIRA
IPC分类号： A61B8/12
摘要： PURPOSE:To easily secure a prescribed interval between an ultrasonic probe and a part to be examined by providing a balloon fixing member having a pair of balloon holding parts and a connecting part for connecting its holding parts, and controlling an expansion of the balloon by the fixing member. CONSTITUTION:A balloon 6 is formed like a sack, and fixed to a tip part main body 1 by a balloon fixing member 7 made of rubber being freely attachable and detachable to and from the tip part main body 1. In the balloon fixing member 7, a pair of annular balloon holding parts 7a for pressing and fixing the balloon 6 are formed in both ends so as to be opposed to each other, and connected by a connecting part 7b formed integrally. When deaeration water is injected into the balloon 6 and it is expanded, the balloon 6 is expanded large in front of an ultrasonic probe 2. However, on its reverse side, it is pressed down by the connecting part 7b, and not expanded in its direction. Accordingly, even if the balloon 6 is pressed strongly against the part to be examined, a prescribed interval can be secured surely between an examinee and the ultrasonic probe 2.

45. 发明专利

JPH05168585A TIP PART OF ENDOSCOPE 失效
公开(公告)号：JPH05168585A
公开(公告)日：1993-07-02
申请号：JP34487491
申请日：1991-12-26
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI
IPC分类号： A61B1/00 , G02B23/24
摘要： PURPOSE:To provide a tip of endscope which enables the use of a long atabbing needle for an endoscope even when the tip of a treating device insertion path is formed open being bent askew at the tip part of an endoscope inserting part. CONSTITUTION:In a tip part of an endoscope wherein the tip of a treating device insertion path 3 inserted into the endoscope-inserting part is opened being bent askew at the tip part 1 of the endoscope inserting part, an auxiliary groove 10 with the width thereof smaller than that of the tip part 3b of the treating device insertion path 3 is formed successive to the tip part of the treating device insertion path 3 in a gentle angle direction from a slat direction.

46. 发明专利

JPH04347816A OPTICAL FIBER FLUX FOR ENDOSCOPE 失效
公开(公告)号：JPH04347816A
公开(公告)日：1992-12-03
申请号：JP22252491
申请日：1991-05-24
申请人： ASAHI OPTICAL CO LTD
发明人： MIURA SHIZUHARU , OHARA KENICHI
IPC分类号： A61B1/00 , C03B37/023 , G02B23/24 , G02B23/26
摘要： PURPOSE:To provide the of an endoscope which hardly generates the breakage of optical fibers at the time of assembly and even after repetitive use by building the optical fiber flux into the endoscope. CONSTITUTION:This optical fiber flux of the endoscope is constituted by mounting a mouthpiece 21 to its front end and coating the flexible part behind the front end with a 1st flexible tube 23. A protective pipe 25 disposed to be bitten to the inside surface of the 2nd flexible tube 25b in the state of energizing a spiral pipe 25a having a spring property outward from the inner side is formed to such optical fiber flux. This protective pipe 25 is disposed around the 1st flexible tube 23 within at least the curved part 3 of the endoscope and its front end is detained to the mouthpiece 21.

47. 发明专利

JPH0453549A TREATMENT TOOL FOR ENDOSCOPE 失效
公开(公告)号：JPH0453549A
公开(公告)日：1992-02-21
申请号：JP16154990
申请日：1990-06-20
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI
IPC分类号： G01N29/06 , A61B1/00 , A61B8/12 , A61B17/28 , A61B19/00
摘要： PURPOSE:To accurately and safely carry out endoscopic treatments at near the center of an optical observation range by providing a flexible shaft which is curved so that when passed through a treatment tool through passage its end extends toward near the center of the optical observation range. CONSTITUTION:The end side 33a of a shaft is curved. When a treatment tool 30 is passed through a treatment tool through passage 10, the curved part 33 of the shaft of the treatment tool 30 is extended along the curve of the treatment tool through passage 10 and an end treating portion 31 is guided in such a manner as projecting to near the center of an optical observation range 4a. This position is also within an ultrasonic scanning range 3a and the end treating portion 31 appears also in an ultrasonic tomogram. In this case, no matter in which direction the treatment tool 30 is inserted into the treatment tool through passage 10, the end side shaft 33a of the treatment tool 30 comes to the curved part of the treatment tool through passage 10 and then the curve of the shaft 33a is extended along the curve of the treatment tool through passage 10 and the treatment tool 30 is naturally straightened in a fixed direction.

48. 发明专利

JPH01310637A CHANNEL TUBE OF ENDOSCOPE 失效
公开(公告)号：JPH01310637A
公开(公告)日：1989-12-14
申请号：JP14251188
申请日：1988-06-08
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI , KIMIJIMA MIKITO
IPC分类号： G02B23/24 , A61B1/00
摘要： PURPOSE:To obtain excellent chemical stability, weatherability, electrical insulating characteristics, coefft. of friction and adequate resilience by forming the above tube of a material prepd. by mixing a tetrafluoroethylene/perfluoroalkyl vinyl ether copolymer with polytetrafluoroethylene(PTFE). CONSTITUTION:The PTFE and the tetrafluoroethylene/perfluoroalkyl vinyl ether have both the advantages of the good chemical stability, weatherability and electrical insulating characteristic plus the small coefft. of friction. If, however, the tube is molded of either of these materials alone, the tube has the disadvantages of poor resilience and easy tendency to buckling when bent in either cases. Whereas, the tube having the good resilience is obtd. if the channel tube is molded of the material prepd. by mixing the above mentioned copolymer with the PTFE. In addition, the above-mentioned advantages are obtd. as they are. The forceps channel 9 can be deflected over the entire length in the inserted part if the channel 9 has the resilience and, therefore, the bending operation of a curving part 3 by a remote operation is facilitated.

49. 发明专利

JPH01135327A SUCTION APPARATUS OF ENDOSCOPE 失效
公开(公告)号：JPH01135327A
公开(公告)日：1989-05-29
申请号：JP29228687
申请日：1987-11-19
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI , KOBAYASHI OSAMU
IPC分类号： A61B1/00
摘要： PURPOSE:To prevent the generation of a suction polyp at the time of sucking operation and to achieve the suction of a sufficient amount at the use time of a forceps, by allowing one of or both of a forceps channel and a suction channel to selectively communicate with a suction means. CONSTITUTION:The base part of an insert part is connected to an operation part 21 and a forceps insert port 19 is formed to the lower part of said operation part 21 so as to protrude therefrom. The base part of a forceps channel is connected to communicate with the forceps insert port. The communication state of one of or both of the forceps channel 11 and a suction channel 13 with a suction operating part 23 is changed over a change-over cock 35 serving as a suction pipeline change-over means.

50. 发明专利

JPS63275314A SUCTION PIPELINE CHANGE OVER APPARATUS OF ENDOSCOPE 失效
公开(公告)号：JPS63275314A
公开(公告)日：1988-11-14
申请号：JP11032987
申请日：1987-05-06
申请人： ASAHI OPTICAL CO LTD
发明人： OHARA KENICHI , IKEDA KUNITOSHI , KOBAYASHI OSAMU
IPC分类号： A61B1/00
摘要： PURPOSE:To selectively and equally perform suction from both forceps channels, by providing a change-over cock for allowing a suction pipeline to selectively communicate with both of or one of two communication pipelines respectively communicating with two forceps channels to a Y-shape connection part. CONSTITUTION:A change-over cock 15 is constituted by integrally screwing a joint ring in the cylinder 22 positioned by a support cylinder 21 and fixing the cylinder 22 to a housing 20 by a nut 24. A cock 25 is inserted in the cylinder 22 in a freely rotatable manner, and two communication pipelines 17, 18 and a suction pipeline 16 are connected in a Y-shape and the communication hole 26 simultaneously communicating with three pipelines 16, 17, 18 is provided to the cock 25 by drilling. When a knob 27 is rotated, the cock 25 is rotated in the cylinder 22 and can be stopped at the positions of three places. Therefore, suction can be arbitrarily and selectively performed from both of or one of two forceps channels and, when suction is simultaneously performed from two forceps channels, suction can be performed from both of them under equal sucking pressure.

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