[특허]Cryosurgical instrument

[미국특허] Cryosurgical instrument 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/38
출원번호	US-0642658 (1996-05-03)
발명자 / 주소	Matsuura David G. Zupkas Paul F.
출원인 / 주소	URDS, Corp.
대리인 / 주소	Stout
인용정보	피인용 횟수 : 45 인용 특허 : 4

초록 ▼

A cryosurgical instrument incorporates a heat transfer zone, which abuts against the portion of the cryosurgical instrument near the input refrigerant entrance, and which receives pure input refrigerant at the coldest temperature for quickly and effectively cooling this portion of the cryosurgical instrument. The cryosurgical instrument includes a shaft portion and a handle portion. The shaft portion includes an outer jacket tube having both an open and closed end. The closed end surrounds the freezing zone for freezing live tissue. A middle tube is disposed within the outer jacket tube. An inner tube is disposed within the middle tube. The inner tube is adapted for routing input cryogenic refrigerant therethrough to the freezing zone. The channel between the inner tube and middle tube forms a cryogenic refrigerant exhaust path for exhausting cryogenic refrigerant from the freezing zone. A heat transfer zone is disposed within the handle portion of the cryosurgical instrument near the entrance of the input refrigerant. The heat transfer zone may take the form of a cooling chamber. The cooling chamber is in fluid communication with the inner tube to receive input cryogenic refrigerant from inlet ports therefrom, and is adapted for circulating input refrigerant within the cooling chamber to induce heat transfer from the walls of the chamber into the refrigerant. The cryosurgical instrument further includes an exhaust chamber disposed within the handle portion adapted for receiving exhaust cryogenic refrigerant from the exhaust path. The exhaust chamber is also adapted for receiving exhaust cryogenic refrigerant from the cooling chamber through outlet ports in the cooling chamber.

대표청구항 ▼

[ We claim:] [1.] A cryosurgical instrument, comprising:a shaft portion having an proximal open end and a distal closed end, the closed end including a freezing zone for freezing live tissue;a handle portion having a proximal end and a distal end, the handle portion proximal end including an inlet connection for receiving refrigerant and an outlet connection for exhausting refrigerant, and the handle portion distal end being connected to the proximal open end of the shaft portion;a cryogenic fluid supply passage having an inlet at the inlet connection and an outlet at the freezing zone, and being adapted for routing input cryogenic fluid therethrough to the freezing zone;a cryogenic fluid exhaust passage having an inlet at the freezing zone and an outlet at the outlet connection for exhausting cryogenic fluid from the freezing zone; anda heat transfer zone disposed near the inlet connection of the cryogenic fluid supply passage, the heat transfer zone including an inlet port for receiving input cryogenic refrigerant from the supply passage, a closed space wherein heat exchange can occur between input cryogenic refrigerant and surfaces defining the boundaries of said closed space, and an outlet port for exhausting only the circulating input cryogenic refrigerant to the exhaust passage.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Merry Nir (Berkeley CA) Smidebush Michael (Concord CA), Apparatus for cryosurgery.
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Chang Zhao H. (Poolesville MD) Baust John (Candor NY) Finkelstein J. J. (Bethesda MD), Cryogenic surgical instrument and method of manufacturing the same.
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Baust John G. (Candor NY) Chang ZhaoHua (Poolesville MD) Finkelstein J. J. (Bethesda MD), Cryosurgical instrument with vent means and method using same.
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Saab Mark A. (396 Andover St. Lowell MA 01852), Heat transfer catheters and methods of making and using same.
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이 특허를 인용한 특허 (45) 인용/피인용 타임라인 분석

Babaev, Eilaz, Ablative ultrasonic-cryogenic apparatus.
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Babaev, Eilaz, Ablative ultrasonic-cryogenic apparatus.
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Martin Robert,CAX ; Lueckge Claudia,CAX ; Capuano Leonilda,CAX ; Lane Miriam,CAX, Adjustable position injection tubing.
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Zvuloni,Roni, Apparatus and method for compressing a gas, and cryosurgery system and method utilizing same.
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Babaev, Eilaz, Apparatus and methods for the selective removal of tissue.
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Babaev, Eilaz P., Apparatus and methods for the selective removal of tissue using combinations of ultrasonic energy and cryogenic energy.
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Santoianni Domenic,CAX ; Nahon Daniel,CAX ; Wittenberger Dan,CAX ; Lalonde Jean-Pierre,CAX ; Petre Cristian,CAX, Catheter.
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Shai, Eyal; Berzak, Nir, Combined cryotherapy and brachytherapy device and method.
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Lalonde Jean-Pierre,CAX ; Petre Cristian,CAX ; Martin Robert,CAX ; Lueckge Claudia,CAX ; Carroll Sean,CAX ; Wittenberger Dan,CAX ; Klein George,CAX, Cryoablation structure.
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Dobak John D. ; Li Hong, Cryogenic device, system and method of using same.
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Lalonde, Jean-Pierre; Abboud, Marwan; Ciobotaru, Constantin Bogdan, Cryogenic medical device with high pressure resistance tip.
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Devens, Jr., Douglas A.; Vancelette, David W.; Perkins, Michael W. V., Cryoprobe with coaxial chambers.
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Levin, Alexander, Cryoprobe with vibrating mechanism.
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Vancelette,David W.; van der Walt,Nicholas R.; Xiao,Jia Hua; Snitkin,Eva S., Cryosurgical devices and methods for endometrial ablation.
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van der Walt,Nicholas R.; Xiao,Jia Hua; Vancelette,David W., Cryosurgical devices for endometrial ablation.
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Levin, Alexander, Cryosurgical instrument and its accessory system.
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Levin,Alexander, Cryosurgical instrument and its accessory system.
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Levin,Alexander, Cryosurgical instrument and its accessory system.
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Berzak, Nir; Sharon, Simon; Shteiman, Igal; Shilder, Eytan, Cryosurgical instrument with enhanced heat transfer.
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Sharon, Assaf; Berzak, Nir; Hilleli, Ron, Cryosurgical instrument with redirected flow.
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Littrup, Peter J.; Babkin, Alexei V.; Duncan, Robert V.; Kerkar, Pramod; Boldarev, Sergey T., Cryotherapy probe.
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Littrup, Peter J.; Babkin, Alexei V.; Duncan, Robert V.; Kerkar, Pramod; Boldarev, Sergey T., Cryotherapy probe.
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Lafontaine, Daniel M., Cryotreatment device and method of forming conduction blocks.
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Lafontaine, Daniel M., Cryotreatment devices and methods of forming conduction blocks.
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Lafontaine, Daniel M., Cryotreatment devices and methods of forming conduction blocks.
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Lafontaine, Daniel M., Cryotreatment devices and methods of forming conduction blocks.
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Lafontaine, Daniel M., Cryotreatment devices and methods of forming conduction blocks.
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Vancelette, David W.; Devens, Jr., Douglas A., Disposable sheath with replaceable console probes for cryosurgery.
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Larnard, Donald J.; Sachs, Dan, Expandable device for thermal therapy.
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Larnard, Donald J.; Sachs, Dan, Expandable device for thermal therapy including spiral element.
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Biderman, Eytan; Ziv, Noam, Feeding formula appliance.
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Wittenberger, Dan; Lueckge, Claudia; Martin, Robert; Carroll, Sean; Capuano, Leonilda; Yoklavich, Margaret, Mechanical support for an expandable membrane.
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Lalonde, Jean-Pierre, Medical device with enhanced cooling power.
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Ammar Rony,ILX ; Bliweis Mordechai,ILX ; Ofer Glinka,ILX ; Sturlesi Gideon Even,ILX, Method and device for trans myocardial cryo revascularization.
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Ammar Rony,ILX ; Bliweis Mordechai,ILX ; Ofer Glinka,ILX ; Sturlesi Gideon Even,ILX, Method and device for transmyocardial cryo revascularization.
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Littrup,Peter J.; Stabinsky,Seth A.; Bladel,Kevin Van; Zindel,Lisa; Foy,Glenn, Method and system for cryoablating tumors.
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Arless Steven G.,CAX ; Nahon Daniel,CAX ; Tanguay Jean-Francois,CAX, Method for inhibiting restenosis.
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Chauvet, Patrick; Nahon, Daniel, Method of using cryotreatment to treat brain tissue.
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Larnard, Donald J.; Sachs, Dan, Multi-tipped cooling probe.
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Zvuloni, Roni; Schatzberger, Shaike, Multiple cryoprobe apparatus and method.
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Zvuloni,Roni; Schatzberger,Shaike, Multiple cryoprobe apparatus and method.
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Zvuloni, Roni; Schatzberger, Shaike, Multiple cryoprobe delivery apparatus.
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Larnard, Donald J.; Sachs, Dan, Neurosurgical device for thermal therapy.
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Larnard, Donald J.; Sachs, Dan, Neurosurgical device for thermal therapy.
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Larnard, Donald J.; Sachs, Dan, Neurosurgical device for thermal therapy including spiral element.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Cryosurgical instrument 원문보기