Chemically foaming hemostat
AssigneeJoshua R&D Technologies, LLC
InventorDavid Pickett
Life of this patent
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Abstract
A chemically foaming hemostat may use a liquid gel, a dried gel, a dry powder, or a solid “plug” like medium including a foaming agent to stop bleeding. The hemostat also may introduce pharmaceuticals and/or other compounds into a wound to control/mitigate shock, calm the patient, administer antibiotics, administer anti-sepsis compounds, control infection, control sepsis, and/or mitigate pain. No foreign matter need be introduced in connection with use of a chemically foaming hemostat. This eliminates the need to surgically remove introduced foreign matter at a later time. Use of a chemically foaming hemostat also may reduce the likelihood of trauma that sometimes occurs when foreign matter is left in place inside a wound.
Claims20
A hemostat comprising:
- a foaming composition consisting of:
- a gelling agent,
- a sterile anhydrous liquid,
- a blood-activated foaming agent and
- a pharmaceutical-type clotting agent, wherein the foaming composition takes the form of a gel, a sterile anhydrous liquid, or a prescription-grade collagen powder;
- an insertion mechanism affixed to the foaming composition,.
- wherein the insertion mechanism facilitates introduction of the foaming composition into a wound, and
- wherein the foaming composition activatingly contacts blood in at least one of wound tissues, arteries, and veins and abates bleeding upon contact with the blood;
- and
- a foam pressure provided in damaged areas selected from the wound tissues, arteries, and veins
- wherein the foam pressure presses the foaming composition into the damaged areas upon contact with blood,
- wherein foaming of the hemostat does not occur when the hemostat contacts water, and
- wherein the hemostat is anhydrous.
A gel for use in a chemically foaming hemostat, the gel consisting of:
- a first mixture formed from mixing a gelling agent with a sterile anhydrous liquid;
- a blood-activated foaming agent and a pharmaceutical-type clotting agent added to the first mixture and blended to form the gel of the chemically foaming hemostat, wherein the gel activatingly contacts blood in at least one of wound tissues, arteries, and veins and abates bleeding in the wound tissues, arteries, and veins upon contact with the blood;
- and
- a foam pressure provided in damaged areas selected from the wound tissues, arteries, and veins
- wherein the foam pressure presses the gel into the damaged areas upon contact with blood,
- wherein foaming of the hemostat does not occur when the hemostat contacts water, and
- wherein the hemostat is anhydrous.
A method for using a chemically foaming hemostat, the method comprising:
- introducing the chemically foaming hemostat formed of a foaming agent affixed to a sterile stick or wire into a wound where blood is present;
- and
- removing the sterile stick or wire from the wound when the foaming agent has been introduced into the wound, wherein upon contact with the blood, the foaming agent activates to foam in the wound and bleeding associated with the wound stops.
Dependencies are inferred from the claim text.