Combined irrigator and evacuator for closed wounds
First Claim
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1. A combined irrigator and evacuator for use in bathing a wound with an irrigating solution and removing fluid from the wound, comprising:
- (a) a rigid housing forming a chamber having opposed ends and a wall, at least one of said ends being substantially planar;
(b) means under bias for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, said means being substantially planar and substantially parallel to said planar end;
(c) seal means for preventing fluid flow between said pressure-irrigating section and said suction-evacuating section;
(d) means for filling said pressure-irrigating section with said irrigating solution against said bias, said bias tending to expel substantially all of said irrigating solution; and
(e) flow means under selective rate control for simultaneously expelling the irrigating solution from the pressure-irrigating section under said bias towards said wound and for admitting fluid removed from said wound into the suction-evacuating section by vacuum developed by the expelling of the irrigating solution.
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Abstract
A self-contained, combined irrigator and evacuator for closed wounds comprising a housing divided into two sections by a biased divider so that movement of the divider in one direction causes pumping of fluid from one section to a patient for wound irrigation while simultaneously effecting evacuation of fluid from the wound site and collection of the evacuated fluid in the second section.
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Citations
10 Claims
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1. A combined irrigator and evacuator for use in bathing a wound with an irrigating solution and removing fluid from the wound, comprising:
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(a) a rigid housing forming a chamber having opposed ends and a wall, at least one of said ends being substantially planar; (b) means under bias for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, said means being substantially planar and substantially parallel to said planar end; (c) seal means for preventing fluid flow between said pressure-irrigating section and said suction-evacuating section; (d) means for filling said pressure-irrigating section with said irrigating solution against said bias, said bias tending to expel substantially all of said irrigating solution; and (e) flow means under selective rate control for simultaneously expelling the irrigating solution from the pressure-irrigating section under said bias towards said wound and for admitting fluid removed from said wound into the suction-evacuating section by vacuum developed by the expelling of the irrigating solution. - View Dependent Claims (2, 3)
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4. A combined irrigator and evacuator for use in bathing a wound with an irrigating solution and removing fluid from the wound, comprising:
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(a) a rigid housing comprising a base having an end and an integrally-formed circumferential wall and a cover having a top which is adapted to be mounted on said base forming a chamber; (b) a planar resilient diaphragm for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, the edges of said diaphragm overlapping the rim of said circumferential wall and being secured to said wall by said cover such that fluid flow between said sections is prevented; (c) access means providing fluid flow access to said sections; and (d) flow control means permitting selective opening and closing of said access means. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method of concurrently irrigating and evacuating a wound site through the use of a single, portable device, comprising:
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a. expanding a first chamber while simultaneously evacuating a second chamber; b. filling said first chamber with an irrigating fluid; c. connecting said first chamber to said wound site by a first fluid conduit means; d. connecting said second chamber to said wound site by a second fluid conduit means; e. contracting said first chamber thereby expelling said irrigating fluid from said first chamber to said wound site and simultaneously expanding said second chamber and thereby creating a negative pressure in said second chamber; and f. aspirating fluid from said wound site by means of said negative pressure created in said second chamber.
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Specification