Medical device and method for facilitating intra-tissue visual o

Details Medical device and method for facilitating intra-tissue visual o Medical device and method for facilitating intra-tissue visual o

1992-11-06

1994-10-11

Rosenbaum, C. Fred

Surgery

Instruments

Orthopedic instrumentation

604161, 128 4, A61F 232, A61F 234, A61B 1758, A61B 1760

Patent

active

053543025

ABSTRACT:
A device for facilitating intra-tissue observation and/or manipulation includes an outer sleeve having a first end and a second end and an inner sheath member adapted for insertion into the second end, wherein the first end is a penetration end adapted to move tissue away from the penetration end. A preferred embodiment of the penetration end includes a hollow cone adapted to expand and retract upon axial movement of the inner sheath such that expansion of the penetration end moves tissue away from the first end to form an open operating area. The inner sheath member includes a scope, such as an optically based telescope, for visually observing an area proximate the first end. A pronged grip device secures the outer sleeve about the opening. The pronged grip device includes adjustable prongs which are axially slidable along the outer sleeve and radially contractible to substantially form an airtight seal between the outer sleeve and the opening. A method for using the device includes inserting the device into the opening; adjusting the prong device about the opening so as to substantially form an airtight seal between the outer sleeve and the opening; and moving the inner member and the outer member relative to each other to engage the penetration end so move tissue away from the end to provide an open working area and injecting gas into the open area to further distend the tissue.

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Karl Storz Resectoscope Catalog, Germany, believed to be published in 1988. pp. RES 1-RES 18A.
Richard Wolf Laparoscopy And Hysteroscopy Catalog, available from Richard Wolf Medical Instrument Corp. 7046 Lyndon Avenue, Rosemont, Illinois 60018, U.S.A., believed to be printed in 1989. See particularly pp. E1-E52.

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