Apparatus for viewing and treating body tissue
First Claim
1. In the method of treating internal body tissue, the steps that includea) providing an endoscope having a viewing channel, with an elongated optical stem, associated with said channel, and defining a longitudinal axis,b) providing a longitudinally elongated sheath received on said stem and supported for controlled rotation about said axis and into selected angular position relative to said support, to gain access to the selected urethral tissue zone to be treated,c) providing means to be rotated with the sheath, to be targeted toward and to eject flowable treatment material onto or into said tissue at said zone, said means provided in the form of a syringe having a needle, providing a needle guide on and exposed externally of said sheath in angularly offset relation to said axis, near forward end extent of the sheath, and inserting the syringe needle forwardly into a guide on the sheath, so that the needle discharge end is proximate the end of the sheath.
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Accused Products
Abstract
In the method of treating internal body tissue, the steps that include providing an endoscope having a viewing channel, with an elongated optical stem, associated with the channel, and defining a longitudinal axis; providing a longitudinally elongated sheath received on a stem and supported for controlled rotation about an axis and into selected angular position relative to a support, to gain access to the selected urethral tissue zone to be treated; providing means to be rotated with the sheath to be targeted toward and to eject flowable treatment material onto or into tissue at a zone; and rotating the sheath and ejecting treatment material at a selected zone.
42 Citations
20 Claims
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1. In the method of treating internal body tissue, the steps that include
a) providing an endoscope having a viewing channel, with an elongated optical stem, associated with said channel, and defining a longitudinal axis, b) providing a longitudinally elongated sheath received on said stem and supported for controlled rotation about said axis and into selected angular position relative to said support, to gain access to the selected urethral tissue zone to be treated, c) providing means to be rotated with the sheath, to be targeted toward and to eject flowable treatment material onto or into said tissue at said zone, said means provided in the form of a syringe having a needle, providing a needle guide on and exposed externally of said sheath in angularly offset relation to said axis, near forward end extent of the sheath, and inserting the syringe needle forwardly into a guide on the sheath, so that the needle discharge end is proximate the end of the sheath.
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15. In apparatus for treating body tissue, the combination comprising
a) a support providing a viewing channel, and an elongated optical stem, associated with said channel, and defining an axis, which extends forwardly, b) a sheath received on said stem and supported for controlled rotation about said axis and into a selected angular position relative to said support, to gain access to a selected body tissue zone to be treated, c) means carried on the sheath to be rotated therewith, to eject flowable treatment material onto or into said tissue at said zone, d) said sheath being controllably rotatable to the selected angular position about said axis to enable controlled ejection of said treatment material at said selected zone, e) said means including a guide on and exposed externally of the sheath for removably and forwardly receiving a syringe needle for passing said treatment material adjacent a portion of said sheath offset from said axis, after rotation of the sheath to said selected angular position, said sheath having a forward end, said guide extending near said forward end, and angled relative to said axis.
Specification