Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2000-09-11
2003-11-25
Tanner, Harry B. (Department: 3744)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S032000
Reexamination Certificate
active
06652488
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a surgical suction and irrigation system, and more particularly to one adaptable to use in endoscopic surgery.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 5,484,402, assigned to the Assignee of the present invention, discloses a surgical suction irrigation system suitable for endoscopic and other surgical procedures. Such system includes a remote pumping unit comprising batteries and a motor driven pump adapted for location adjacent a conventional irrigation liquid source, (such as a conventional liquid irrigation bag), and a handpiece having suction and irrigation valves and a pump motor control switch. An irrigation liquid hose and electrical conductors connect the handpiece to the irrigation liquid pumping unit. Actuation of the handpiece irrigation liquid valve opens a path therethrough from the irrigation liquid hose and simultaneously actuates the switch to energize the pump motor and pump irrigation liquid from the irrigation liquid bag therethrough and through the handpiece to supply a surgical site.
In a continuing effort to improve on surgical suction irrigation systems, particularly endoscopic suction irrigation systems, the present invention has been developed.
Further objects and purposes of the present invention will be apparent to persons acquainted with apparatus of this general kind upon reading the following description and inspecting the accompanying drawings.
SUMMARY OF THE INVENTION
In an embodiment of the invention, a surgical fluid flow handpiece provides a range of relatively low flow rates with relatively fine manual control in selecting a flow rate in such relatively low range, and also provides for manual selection of a relatively high flow rate namely a flow rate well above such range.
In an embodiment of the invention, the handpiece is shaped to complement the shape of a user's hand.
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KLI DeCherney Hysteroscopy Pump believed published before Apr. 19, 1993.
Marlow—Unique Products for Advanced Operative Laparoscopy 790—5M.
Select One
Cahill Sean Barry
Cover Reid
Keast Thomas Martin
Lee Anthony Chikuo
Flynn ,Thiel, Boutell & Tanis, P.C.
Stryker Corporation
Tanner Harry B.
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