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公开(公告)号：EP0996368B1
公开(公告)日：2004-06-23
申请号：EP98934517.8
申请日：1998-07-14
发明人： CLAYMAN, Ralph, V. , PINGLETON, Edward, D. , BUTLER, Gary, L. , FEARNOT, Neal, E. , HOLLINGER, Donald, R. , VENDRELY, Timothy, G.
CPC分类号： A61B17/00234 , A61B17/00 , A61B17/3203 , A61B18/14 , A61B90/00 , A61B2017/00544 , A61B2017/2905 , A61B2017/320044 , A61B2017/32035 , A61B2090/306 , A61B2217/005 , A61B2217/007 , A61M1/0064 , A61M11/06
摘要： A pneumatic tissue dissector (10) useful for cutting or dissecting living tissue during endoscopic or laparoscopic procedures includes a dissector tip (16) for exuding a flow of pressurized gas, an inlet arrangement (24) for controlling the flow of gas from the tip (16), and an exhaust system (30) for exhausting the gas exuded from the tip (16). The exhaust system includes an inlet (32) adjacent to the tip (16) and an outlet spaced from the inlet (32). The outlet (34) is operable in coordination with the inlet arrangement (24) and is capable of exhausting a flow of gas about equal to that exuded by the tip (16), ensuring that the pressure in the cavity in which the procedure is performed does not increase or fluctuate. A method of using the dissector (10) to cut or dissect tissue includes the steps of establishing an insufflated cavity in a patient, positioning the dissector tip (16) and the inlet (32) in the cavity, and actuating the inlet arrangement (24) so as to exude a flow of pressurized gas from the dissector tip (16) and out the outlet (34).
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公开(公告)号：EP1434609A2
公开(公告)日：2004-07-07
申请号：EP02759091.8
申请日：2002-06-14
IPC分类号： A61M1/00
CPC分类号： A61B1/018 , A61B17/221 , A61B2017/22072 , A61B2017/2212
摘要： A medical device for viewing inside a body and for retrieving an object from a location within the body, the medical device comprising an endoscope (32) having a tube defining a working channel (36) and a basket (48) engageable with the object. In one embodiment of the invention, the basket (48) does not require a sheath and is disposed through the working channel such that the endoscope operates to contain or activate the sheathless basket. In another embodiment of the invention, a single push wire (66) with a collar (64) at its end is used in place of a sheath to control the opening and closing of the basket. In another embodiment of the invention, a tapered and funnel-shaped sheath (70) surrounding the basket is used to contain or activate the basket. The invention minimizes the basket crossing profile so as to improve fluid flow in the working channel.
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公开(公告)号：EP1173248A1
公开(公告)日：2002-01-23
申请号：EP00931958.3
申请日：2000-04-26
IPC分类号： A61M25/00
CPC分类号： A61M25/0014 , A61M25/0017 , A61M25/0662 , A61M2025/0681 , A61M2210/1089
摘要： A ureteral access sheath (10) adapted for insertion into a urethra includes an elongate tube (14) extending between a proximal end, and a distal end. A handle (23) assembly is disposed at the proximal end, and includes enlarged portions which inhibit migration of the sheath into the urethra. The enlarged portion is shaped like the bell of a horn with a concave, distally facing outer surface (41), and a convex, proximally facing inner surface. The inner surface functions as a funnel while the outer surface is sized, and configured to receive adjacent fingers of a user's hand held in its natural position. In an associated method, this shape of the handle assembly facilitates maintaining the sheath (10) in a stationary position during insertion, and removal of instrumentation. The handle assembly can be movable on the tube to facilitate variation of the sheath link in situ.
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公开(公告)号：EP1173248B1
公开(公告)日：2011-10-05
申请号：EP00931958.3
申请日：2000-04-26
IPC分类号： A61M25/00
CPC分类号： A61M25/0014 , A61M25/0017 , A61M25/0662 , A61M2025/0681 , A61M2210/1089
摘要： A ureteral access sheath (10) adapted for insertion into a urethra includes an elongate tube (14) extending between a proximal end, and a distal end. A handle (23) assembly is disposed at the proximal end, and includes enlarged portions which inhibit migration of the sheath into the urethra. The enlarged portion is shaped like the bell of a horn with a concave, distally facing outer surface (41), and a convex, proximally facing inner surface. The inner surface functions as a funnel while the outer surface is sized, and configured to receive adjacent fingers of a user's hand held in its natural position. In an associated method, this shape of the handle assembly facilitates maintaining the sheath (10) in a stationary position during insertion, and removal of instrumentation. The handle assembly can be movable on the tube to facilitate variation of the sheath link in situ.
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公开(公告)号：EP0760628B1
公开(公告)日：2002-09-25
申请号：EP95919832.6
申请日：1995-05-10
CPC分类号： A61M25/104 , A61B17/22 , A61B17/320725 , A61B18/08 , A61B18/082 , A61B18/1492 , A61B18/1815 , A61B2017/00292 , A61B2017/22061 , A61B2017/22062 , A61B2018/00083 , A61B2018/00107 , A61B2018/00148 , A61B2018/00196 , A61B2018/00214 , A61B2018/0022 , A61B2018/00285 , A61B2018/00386 , A61B2018/00422 , A61B2018/00601 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/1407 , A61B2018/144 , A61B2018/1475 , A61M3/0279 , A61M25/09 , A61M29/02 , A61M2025/1093 , A61M2205/32
摘要： An angioplasty catheter (60) for increasing the patency of a body vessel by altering an obstruction in the body vessel, includes an elongate shaft (66) having a proximal end (71), and a distal end (73). At least one electrical conductor (100) is disposed at the distal end (73), and movable from a low profile position to a high profile position in proximity to the obstruction. A non-distensible balloon (75) disposed between the conductor and the shaft (66) is inflatable from the proximal end (71) of the shaft (66) to move the conductor (100) between the low profile position and the high profile position. In the high profile position the conductor can be electro-surgically by energized to ablate the obstruction and thereby increase the patency of the body vessel. The conductor (100) may include a circuit (102) which is printed on the exterior surface (95) of the balloon (75). An overlying insulation layer (115) can be provided with a slot (117) to limit the exposure of the conductor (100) to the obstruction, thereby increasing the current density in the electro-surgical procedure.
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公开(公告)号：EP1175186A1
公开(公告)日：2002-01-30
申请号：EP00930187.0
申请日：2000-04-28
发明人： HART, Charles, C. , CLAYMAN, Ralph, V. , BRUSTAD, John, R. , VANDENBROEK, Frans , EWERS, Richard, C.
IPC分类号： A61F2/04
CPC分类号： A61F2/04 , A61F2/042 , A61F2/82 , A61F2/848 , A61F2/90 , A61F2/95 , A61F2002/048 , A61F2250/0067 , A61M27/008
摘要： A stent (30) having an elongate tubular configuration is formed of a plurality of elongate elements (84) interwoven or braided to form a tubular configuration. The elements (84) may be relatively strong, and rigid, but movable relative to each other within the weave or braid in order to provide the stent with generally soft characteristics. The elements may be formed of different materials, such as an absorbent material permitting the stent to be doped with materials, such as drugs, and chemicals. Even the absorbency can be controlled, and varied to provide a predetermined time-release of the absorbent.
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公开(公告)号：EP0760628A1
公开(公告)日：1997-03-12
申请号：EP95919832.0
申请日：1995-05-10
CPC分类号： A61M25/104 , A61B17/22 , A61B17/320725 , A61B18/08 , A61B18/082 , A61B18/1492 , A61B18/1815 , A61B2017/00292 , A61B2017/22061 , A61B2017/22062 , A61B2018/00083 , A61B2018/00107 , A61B2018/00148 , A61B2018/00196 , A61B2018/00214 , A61B2018/0022 , A61B2018/00285 , A61B2018/00386 , A61B2018/00422 , A61B2018/00601 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/1407 , A61B2018/144 , A61B2018/1475 , A61M3/0279 , A61M25/09 , A61M29/02 , A61M2025/1093 , A61M2205/32
摘要： An angioplasty catheter (60) for increasing the patency of a body vessel by altering an obstruction in the body vessel, includes an elongate shaft (66) having a proximal end (71), and a distal end (73). At least one electrical conductor (100) is disposed at the distal end (73), and movable from a low profile position to a high profile position in proximity to the obstruction. A non-distensible balloon (75) disposed between the conductor and the shaft (66) is inflatable from the proximal end (71) of the shaft (66) to move the conductor (100) between the low profile position and the high profile position. In the high profile position the conductor can be electro-surgically by energized to ablate the obstruction and thereby increase the patency of the body vessel. The conductor (100) may include a circuit (102) which is printed on the exterior surface (95) of the balloon (75). An overlying insulation layer (115) can be provided with a slot (117) to limit the exposure of the conductor (100) to the obstruction, thereby increasing the current density in the electro-surgical procedure.
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