Endoluminal ultrasound-guided resectoscope

Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation

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Details

600463, 600462, A61B 800

Patent

active

059578491

ABSTRACT:
A surgical implement, such as a surgical electrode, and an ultrasound transducer, both extend through a single elongated insertion member, typically, a catheter. The ultrasound transducer extends from the proximal region of the surgical instrument containing the instrument controls toward the distal end of the catheter from which at least the operative tip of the surgical implement and the ultrasound transducer extend. In one embodiment, the catheter also contains a fiber-optic endoscope, thus allowing visual as well as ultrasound monitoring of the surgical site, before, during and after conduct of the surgical procedures. Means are provided for rotation of the ultrasound transducer to enable generation of a circular tissue reflectivity image transverse to the axis of the ultrasound transducer. Means are also provided for selective longitudinal movement of all elements contained within the catheter. Liquid crystal or other display means are provided to facilitate visual monitoring of the ultrasound and if present the endoscope outputs in real time. In embodiments including an endoscope, an optical eyepiece is provided to facilitate monitoring of its output. An ultrasound medium within the surgical site is provided by fluid inlet and removal means through the catheter.

REFERENCES:
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patent: 5383460 (1995-01-01), Jang et al.
patent: 5471988 (1995-12-01), Fujio et al.
patent: 5485846 (1996-01-01), Webler et al.
"Intraoperative Ultrasound Guidance for Intrauterine Endoscopic Surgery", vol. 62, No. 3 of Fertility and Sterility, Sep. 1994, by Letterie, et al., pp. 654-656.
"Intrauterine Ultrasonography with a High-Frequence Probe: Preliminary Report", vol. 85, No. 3, Mar. 1995, by Kikuchi, et al., pp. 457-460.

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