Electrosurgical device with treatment arc of less than 360 degrees
First Claim
1. An electrosurgical device for use in the treatment of tissue comprising:
- a probe body including;
an active member sufficiently energized to cauterize and/or dessicate tissue and/or coagulate blood having a peripheral surface extending between first and second ends and at least a pair of spaced, longitudinally extending, electrodes on said surface connected, respectively, to opposite poles of an alternating current source of electrical energy, said electrodes defining a limited active area for focusing its energy on only a restricted region of tissue adjacent thereto desired to be treated while leaving other regions of tissue unaffected, said electrodes being of suitable width and spacing for bipolar treatment and being mounted on said peripheral surface so as to cover only that part of said peripheral surface positioned within a defined arc of less than 360°
having as its center the longitudinal axis of said active member; and
a non-active member having a contoured peripheral surface adjacent said active member
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Accused Products
Abstract
An electrosurgical device for use in the treatment of tissue, particularly in the esophageal and anal regions of the body. The device comprises a multipolar probe body sized for passage into and within a body cavity whose tissue is to be treated without the aid of an endoscope. The probe body includes an active member for providing focused treatment of tissue, the active member being cylindrical and having a peripheral surface on which are mounted a plurality of electrodes, those of one polarity being interposed with those of the opposite polarity. The length of the electrodes can be chosen to obtain desired longitudinal focussing. Additionally, the electrodes can be positioned within a restricted arc to obtain desired peripheral focussing. The probe body also includes non active rounded cap members at its proximal and distal ends, and at its proximal end is mounted on a shaft which extends to the user. A filliform may be mounted on the distal end of the probe body to aid in its insertion into the esophagus. A handle can be attached to the shaft to enable the user to easily adjust the longitudinal positioning of the probe body as well as rotate the probe body about its longitudinal axis to precisely focus on the tissue to be treated without adversely affecting surrounding tissue.
712 Citations
34 Claims
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1. An electrosurgical device for use in the treatment of tissue comprising:
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a probe body including; an active member sufficiently energized to cauterize and/or dessicate tissue and/or coagulate blood having a peripheral surface extending between first and second ends and at least a pair of spaced, longitudinally extending, electrodes on said surface connected, respectively, to opposite poles of an alternating current source of electrical energy, said electrodes defining a limited active area for focusing its energy on only a restricted region of tissue adjacent thereto desired to be treated while leaving other regions of tissue unaffected, said electrodes being of suitable width and spacing for bipolar treatment and being mounted on said peripheral surface so as to cover only that part of said peripheral surface positioned within a defined arc of less than 360°
having as its center the longitudinal axis of said active member; anda non-active member having a contoured peripheral surface adjacent said active member - 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. An electrosurgical device for use in the treatment of tissue comprising:
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a multipolar probe body sized to enable passage of said probe body into and within a body cavity whose tissue is to be treated; said probe body having a first end and a second end and including; an active member sufficiently energized to cauterize and/or dessicate tissue and/or coagulate blood for providing focussed treatment of tissue having a peripheral surface and a longitudinal axis extending between said first end and said second end, said active member having an energized region on said peripheral surface positioned within a defined arc of less than 360°
having as its center the longitudinal axis of said active member, said energized region defining a limited active area for focusing energy on only a restricted region of tissue adjacent thereto desired to be treated while leaving other regions of tissue unaffected; anda non-active member having a rounded peripheral surface at said second end of said probe body, said rounded surface being an extreme end of said probe body. - View Dependent Claims (28, 29, 30, 31, 32)
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33. An electrosurgical device for use in the treatment of tissue comprising:
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a probe including; a body member having a peripheral surface extending between first and second ends and at least a pair of spaced, longitudinally extending, electrodes on said surface connected, respectively, to opposite poles of a source of electrical energy; a cap member having a contoured peripheral surface mounted to said first end of said active member, said contoured surface being an extreme end of said probe body; said device including an elongated support member fixed to said second end of said body member and extending in a direction away therefrom wherein said electrodes are of suitable width and spacing to provide effective bipolar treatment and are mounted on said peripheral surface so as to cover only that part of said peripheral surface positioned within a defined arc of less than 360°
having as its center the longitudinal axis of said body members, whereby the energy being emitted from said electrodes can be focussed on a restricted area selected for treatment, andat least a pair of said electrodes extending from the body onto said cap member. - View Dependent Claims (34)
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Specification