Devices for applying energy to tissue
First Claim
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1. A medical device for applying energy to tissue, the medical device comprising:
- an elongate member having a proximal portion and a distal portion;
a transducer assembly comprisinga covering having a proximal and distal end,at least one transducer having at least a first and second pole,a first conductive medium in contact with said first pole of said transducer and extending to at least a portion of an outer surface of said covering,wherein said transducer assembly is located towards a distal end of said elongate member distal portion;
at least two conducting members extending through at least a portion of said elongate member, at least a first of said conducting members being electrically coupled to said first conductive medium, and a second of said conducting members extending through said proximal end of said covering and electrically coupled to said second pole of said transducer;
a hollow conductive member located at the distal end of said elongate member, said hollow conductive member electrically coupled to an energy source, anda tip located at a distal end of said elongate member distal portion and having a front and back surface, said back surface being in acoustical communication with said transducer such that said tip is adapted to communicate a source signal from said transducer out through said front surface, said tip also being adapted to communicate a reflected signal from said front surface to said transducer assembly.
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Abstract
Disclosed herein are devices for altering gaseous flow within a lung to improve the expiration cycle of an individual, particularly individuals having Chronic Obstructive Pulmonary Disease (COPD). More particularly, devices are disclosed to produce collateral openings or channels through the airway wall so that expired air is able to pass directly out of the lung tissue to facilitate both the exchange of oxygen ultimately into the blood and/or to decompress hyper-inflated lungs.
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Citations
27 Claims
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1. A medical device for applying energy to tissue, the medical device comprising:
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an elongate member having a proximal portion and a distal portion; a transducer assembly comprising a covering having a proximal and distal end, at least one transducer having at least a first and second pole, a first conductive medium in contact with said first pole of said transducer and extending to at least a portion of an outer surface of said covering, wherein said transducer assembly is located towards a distal end of said elongate member distal portion; at least two conducting members extending through at least a portion of said elongate member, at least a first of said conducting members being electrically coupled to said first conductive medium, and a second of said conducting members extending through said proximal end of said covering and electrically coupled to said second pole of said transducer; a hollow conductive member located at the distal end of said elongate member, said hollow conductive member electrically coupled to an energy source, and a tip located at a distal end of said elongate member distal portion and having a front and back surface, said back surface being in acoustical communication with said transducer such that said tip is adapted to communicate a source signal from said transducer out through said front surface, said tip also being adapted to communicate a reflected signal from said front surface to said transducer assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A medical device for detecting Doppler shift and for applying energy to tissue, the medical device comprising:
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an elongate member having a proximal portion and a distal portion; a transducer assembly comprising at least one transducer having at least a first and second pole, a first conductive medium in contact with said first pole of said transducer, wherein at least a portion of said transducer assembly is located towards said distal portion of said elongate member; a tip having a back surface being in acoustical communication with said transducer such that said transducer is able to transmit and receive a signal having a wavelength to/from said tip; a first conducting member and a second conducting member both extending through at least a portion of said elongate member, said first conducting member being electrically coupled to said first conductive medium, and said second conducting member being electrically coupled to said second pole of said transducer; an outer sheath having a hollow conductive member located at a distal end of said sheath, said sheath and conductive member located about an exterior of said elongate member, said sheath and said elongate member slidable relative to one another; and a third conducting member electrically coupling an RF power supply electrically coupled to said hollow conductive member.
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Specification