Combined irrigator and evacuator for closed wounds
AssigneeInternational Paper Company
InventorEdwin A. May
Life of this patent
Estimating the term…
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.
Claims19
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;
- b. means under bias for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, said bias tending to reduce the volume of said pressure-irrigating section and increase the volume of said suction-evacuating section;
- c. seal means for preventing fluid flow between said pressure-irrigating section and said suction-evacuating section;
- d. access means providing fluid flow access to said sections;
- and
- e. means in said pressure-irrigating section for containing said irrigating solution.
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;
- b. a planar, resilient diaphragm for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, said diaphragm being secured at its edges to said housing such that fluid flow between said sections is prevented;
- c. access means providing fluid flow access to said sections;
- d. flow control means permitting selective opening and closing of said access means;
- and
- e. means in said pressure-irrigating section for containing said irrigating solution, said means having an opening in fluid flow communication through the access means to said pressure-irrigating section through which said solution can be expelled.
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;
- b. a resilient diaphragm for dividing said chamber into a pressure-irrigating section and a suction-evacuating section, said diaphragm being secured at its edges to said housing such that fluid flow between said sections is prevented;
- c. access means providing fluid flow access to said sections;
- d. a flexible bag in said pressure-irrigating section, said bag containing an irrigating solution and having a means through which said solution can be expelled;
- and
- e. a flow control means for selectively permitting and preventing fluid flow through said access means.
A combined irrigator and evacuator for simultaneously bathing a wound with an irrigating fluid and removing fluids from the wound, comprising:
- a. a rigid housing consisting of a base having a first end wall and side walls and a cover having a second end wall which is adapted to be mounted on said base forming a chamber therein, said cover having an opening;
- b. a resilient diaphragm dividing said chamber into an irrigating section between one of said end walls, and said diaphragm and an evacuating section between said diaphragm and the other of said end walls, the edges of said diaphragm overlapping said side walls;
- c. a diaphragm retaining ring, the perimeter of which overlaps said side walls such that the overlapping, edges of said diaphragm are securely locked between said retaining ring and said side walls thereby preventing fluid flow between said irrigating and evacuating sections, said diaphragm retaining ring being mounted to said side walls permitting the removal of said cover without affecting the attachment of said diaphragm to said side walls;
- d. a flexible bag containing irrigating solution in said irrigating section, said bag having a tubular extension projecting outwardly through said opening in said cover for connection to a fluid conduit means and including a means for obturating fluid flow through said extension, the inclusion of said bag in said irrigating section stretching said diaphragm;
- e. an inlet and an outlet opening through said housing communicating with said evacuating section;
- f. an outwardly extending tubular extension from said inlet for connection to a fluid conduit means and one-way flow control means to permit introduction of fluid into said evacuating section through said inlet and preventing expulsion of fluid from said evacuating section through said inlet;
- and
- g. a removable cap adapted to be placed on the outlet to selectively permit expulsion of fluid from said evacuating section.
Dependencies are inferred from the claim text.