IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0709430
(2000-11-13)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
28 인용 특허 :
7 |
초록
▼
In a system which utilizes an endoscope and irrigation fluid during surgery within a body orifice, and in which irrigation fluid is withdrawn via a principal path into a suction canister, there is a substantially constant suction and withdrawal rate from the operative site to limit absorption of irr
In a system which utilizes an endoscope and irrigation fluid during surgery within a body orifice, and in which irrigation fluid is withdrawn via a principal path into a suction canister, there is a substantially constant suction and withdrawal rate from the operative site to limit absorption of irrigation fluid within the patient, because a bifurcated flow path that leads to the suction canister not only from the endoscope but also from a drain bag receiving overflow from the body orifice via a tailored drape includes a substantially greater flow impedance in the drain bag path. The common suction line joined to the endoscope line and the drain bag line draws a flow through the endoscope that predominates, to maintain substantially constant withdrawal of irrigation fluid via that path, and substantially eliminates the possibility of loss of suction.
대표청구항
▼
In a system which utilizes an endoscope and irrigation fluid during surgery within a body orifice, and in which irrigation fluid is withdrawn via a principal path into a suction canister, there is a substantially constant suction and withdrawal rate from the operative site to limit absorption of irr
In a system which utilizes an endoscope and irrigation fluid during surgery within a body orifice, and in which irrigation fluid is withdrawn via a principal path into a suction canister, there is a substantially constant suction and withdrawal rate from the operative site to limit absorption of irrigation fluid within the patient, because a bifurcated flow path that leads to the suction canister not only from the endoscope but also from a drain bag receiving overflow from the body orifice via a tailored drape includes a substantially greater flow impedance in the drain bag path. The common suction line joined to the endoscope line and the drain bag line draws a flow through the endoscope that predominates, to maintain substantially constant withdrawal of irrigation fluid via that path, and substantially eliminates the possibility of loss of suction. theter in (i) an operative position, and (ii) a stowed position; and a tissue ingrowth member secured to an outer surface of said guide catheter and configured to facilitate fibrous tissue growth therein, whereby subcutaneous tissue of a body becomes affixed to said tissue ingrowth member when said tissue ingrowth member remains in contact with said subcutaneous tissue over a period of time, wherein when said working catheter is locked in said operative position, (i) said working catheter extends through said guide lumen of said guide catheter and out of said distal guide orifice of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned outside of said guide catheter, wherein when said working catheter is locked in said stowed position, (i) said working catheter extends into said guide lumen of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned within said guide lumen of said guide catheter, wherein said distal working orifice is positioned on a proximal side of a distal valve of said catheter system when said working catheter is locked in said stowed position, and wherein said distal working orifice is positioned on a distal side of said distal valve when said working catheter is locked in said operative position. 5. A catheter system, comprising: a working catheter having a distal working orifice; a guide catheter having a guide lumen and a distal guide orifice; a locking mechanism which locks said working catheter relative to said guide catheter in (i) an operative position, and (ii) a stowed position; and a tissue ingrowth member secured to an outer surface of said guide catheter and configured to facilitate fibrous tissue growth therein, whereby subcutaneous tissue of a body becomes affixed to said tissue ingrowth member when said tissue ingrowth member remains in contact with said subcutaneous tissue over a period of time, wherein when said working catheter is locked in said operative position, (i) said working catheter extends through said guide lumen of said guide catheter and out of said distal guide orifice of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned outside of said guide catheter, wherein when said working catheter is locked in said stowed position, (i) said working catheter extends into said guide lumen of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned within said guide lumen of said guide catheter, further comprising a quantity of blood clot dissolving liquid positioned within said guide lumen of said guide catheter when said working catheter is locked in said stowed position, wherein: said blood clot dissolving liquid contacts said working catheter at said distal working orifice when said working catheter is locked in said stowed position. 6. The catheter system of claim 5, wherein said blood clot dissolving liquid includes urokinase. 7. A catheter system, comprising: a multi-lumen working catheter having a first distal working orifice and a second distal working orifice; a guide catheter having a guide lumen and a distal guide orifice; a locking mechanism which locks said working catheter relative to said guide catheter in (i) an operative position, and (ii) a stowed position; and a tissue ingrowth member secured to an outer surface of said guide catheter and configured to facilitate fibrous tissue growth therein, whereby subcutaneous tissue of a body becomes affixed to said tissue ingrowth member when said tissue ingrowth member remains in contact with said subcutaneous tissue over a period of time, a distal valve configured to inhibit fluid from advancing through said distal guide orifice and into said guide lumen of said guide catheter wherein when said working catheter is locked in said operative position, (i) said working catheter extends through said guide lumen of said guide catheter an
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