Tubing for endoscopic electrosurgical suction-irrigation instrument
First Claim
1. A tubing for connection to an endoscopic instrument having suction, irrigation and electrocautery capabilities, said electrocautery capability requiring connection to an electrical wire, said tubing comprising:
- an extruded flexible plastic tube having a first suction portion having a first interior substantially circular cylindrical fluid tight passageway, a second irrigation portion having a second interior substantially circular cylindrical fluid tight passageway, and a third portion having a third substantially cylindrical interior passageway for an electrical wire, said third portion joining one of said first suction and second irrigation portions and located substantially between said first and second irrigation portions, wherein said third substantially cylindrical interior passageway has first and second flexible lips defining a peripheral opening in said third substantially cylindrical interior passageway, said peripheral opening being narrower than said electrical wire such that said electrical wire is inserted past said lips and held in said third substantially cylindrical interior passageway and is removable from said third substantially cylindrical interior passageway.
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Accused Products
Abstract
Various embodiments of flexible plastic tubing are disclosed for connection to an endoscopic instrument having suction, irrigation and electrocautery capabilities, with the electrocautery capability requiring connection to an electrical wire. Generally, the tubing is an integral, extruded flexible plastic tube having a first suction portion with a first interior cylindrical passageway, a second irrigation portion with a second interior cylindrical passageway, and a third portion with a third passageway for the electrical wire. The third portion joins the other portions. The third portion has a substantially cylindrical interior passageway with first and second flexible lips defining a peripheral opening which is narrower than the electrical wire such that the electrical wire is inserted past the lips and held in the passageway and is removable from the passageway.
435 Citations
10 Claims
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1. A tubing for connection to an endoscopic instrument having suction, irrigation and electrocautery capabilities, said electrocautery capability requiring connection to an electrical wire, said tubing comprising:
an extruded flexible plastic tube having a first suction portion having a first interior substantially circular cylindrical fluid tight passageway, a second irrigation portion having a second interior substantially circular cylindrical fluid tight passageway, and a third portion having a third substantially cylindrical interior passageway for an electrical wire, said third portion joining one of said first suction and second irrigation portions and located substantially between said first and second irrigation portions, wherein said third substantially cylindrical interior passageway has first and second flexible lips defining a peripheral opening in said third substantially cylindrical interior passageway, said peripheral opening being narrower than said electrical wire such that said electrical wire is inserted past said lips and held in said third substantially cylindrical interior passageway and is removable from said third substantially cylindrical interior passageway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification