IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0653456
(2003-09-02)
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등록번호 |
US-7566318
(2009-08-05)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Hollingsworth & Funk, LLC
|
인용정보 |
피인용 횟수 :
34 인용 특허 :
98 |
초록
▼
Ultrasonic dissection instruments and methods provide for fluid delivery during subcutaneous dissection. An ultrasonic dissection tool includes a handle, a transducer and a dissecting member. The dissecting member extends from the distal end of the transducer, and a fluid channel system extends from
Ultrasonic dissection instruments and methods provide for fluid delivery during subcutaneous dissection. An ultrasonic dissection tool includes a handle, a transducer and a dissecting member. The dissecting member extends from the distal end of the transducer, and a fluid channel system extends from at least the proximal end to the distal end of the dissecting member. The fluid channel system terminates in a port system. The port system may include one or more apertures, one or more channels, and be adapted to transport fluids such as, for example, irrigation fluids, fluids having analgesics, antibiotics, and combinations of fluids and agents.
대표청구항
▼
What is claimed is: 1. A dissection tool, comprising: an elongated handle having a proximal end and a distal end; an elongated dissecting element having a proximal end and a tapered distal end, the proximal end of the elongated dissecting element coupled to the handle and the elongated dissecting e
What is claimed is: 1. A dissection tool, comprising: an elongated handle having a proximal end and a distal end; an elongated dissecting element having a proximal end and a tapered distal end, the proximal end of the elongated dissecting element coupled to the handle and the elongated dissecting element extending from the distal end of the handle; two ultrasonic transducers provided along the tapering of the distal end of the elongated dissecting element, the ultrasonic transducers provided on opposite sides of the elongated dissecting element; and a fluid channel system extending from at least the proximal end of the elongated dissecting element to the distal end of the elongated dissecting element, the fluid channel system terminating in a port system having a plurality of apertures along the tapering of the distal end of the elongated dissecting element. 2. The dissection tool of claim 1, wherein the ultrasonic transducers are driven by a signal at one or more frequencies ranging between about 0.2 megahertz and about 3 megahertz. 3. The dissection tool of claim 1, wherein the ultrasonic transducers are driven by a pulsed electrical signal having a duty cycle ranging between about 10% and 100%. 4. The dissection tool of claim 1, wherein the ultrasonic transducers are driven at a power level ranging between about 1 watt and about 200 watts. 5. The dissection tool of claim 1, wherein the port system comprises a plurality of apertures. 6. The dissection tool of claim 1, wherein at least one of the ultrasonic transducers comprises a hole and the at least one ultrasonic transducer is positioned on the tapering of the distal end of the elongated dissecting element such that the hole of the ultrasonic transducer is aligned with an aperture of the plurality of apertures to allow fluid flow through the aperture and the hole. 7. The dissection tool of claim 1, wherein the plurality of apertures of the port system comprises at least two lateral apertures non-coincident with the longitudinal axis of the elongated dissecting element and an axial aperture coincident with the longitudinal axis of the elongated dissecting element and terminating a distal tip of the elongated dissecting element, and wherein each of the two ultrasonic transducers respectively comprises a hole and each ultrasonic transducer is positioned on the tapering of the distal end of the elongated dissecting element such that each hole of each ultrasonic transducer is aligned with different lateral apertures of the port system to allow fluid flow through the lateral apertures and the holes. 8. The dissection tool of claim 1, further comprising a delivery system having a pump, an irrigation fluid reservoir, and a pharmacological agent reservoir, wherein the dissection tool is configured to deliver irrigation fluid from the irrigation fluid reservoir through the fluid channel system and out at least one aperture of the plurality of apertures of the port system and deliver pharmacological agent from the pharmacological agent reservoir through the fluid channel system and out at least one other aperture of the plurality of apertures of the port system. 9. A dissection tool, comprising: at least two ultrasonic transducers; means, coupled to the ultrasonic transducers, for dissecting subcutaneous tissue employing an elongated dissecting element having a proximal end and a tapered distal end, the ultrasonic transducers coupled to the elongated dissecting element such that the ultrasonic transducers vibrates the elongated dissecting element to facilitate tissue dissection; and means for delivering a fluid through or along the elongated dissecting element of the dissecting means and to tissue subject to dissection, the fluid exiting the dissection tool through a port system having a plurality of apertures along the tapering of the distal end of the elongated dissecting element, wherein the at least two ultrasonic transducers are provided along the tapered distal end of the elongated dissecting element and the at least two ultrasonic transducers are provided on opposite sides of the elongated dissecting element. 10. The dissection tool of claim 9, further comprising means for controllably supplying the fluid to the fluid delivering means. 11. The dissection tool of claim 9, further comprising means for aspirating debris from the dissected tissue. 12. The dissection tool of claim 9, wherein at least one of the ultrasonic transducers is mounted on the tapering of the distal end of the elongated dissecting element and over at least one of the apertures of the plurality of apertures such that a hole in the at least one ultrasonic transducer is aligned with the at least one aperture to allow fluid flow through the at least one aperture and the hole. 13. The dissection tool of claim 9, further comprising means for impelling the fluid from the dissecting means and into the tissue subject to dissection employing sonophoresis.
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