Failsafe percutaneous wound barrier
First Claim
1. A method for delivering a tissue forming fluid to internal bleeding pathways, the method comprising:
- delivering, by an apparatus, the tissue forming fluid through skin of a patient via an access path to a subcutaneous region surrounding a vessel in a body of the patient while the tissue forming fluid is in flowable form, whereinthe tissue forming fluid comprises clotting material including autologous whole blood;
filling the subcutaneous region with the tissue forming fluid;
maintaining a position of at least a portion of the apparatus for a period of time to allow the tissue forming fluid to at least partially solidify into a tissue mass, whereinthe tissue mass is capable of being reabsorbed by the body of the patient over time, andupon at least partial solidification, the tissue mass comprises a core pin channel impression in the form of the portion of the apparatus; and
removing the apparatus from the access path, wherein, upon removal, the core pin channel impression provides a channel for directing any bleeding out to the skin of the patient, thereby providing a failsafe mechanism to avoid internal bleeding.
1 Assignment
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Accused Products
Abstract
Provided are approaches to establish a failsafe barrier to internal bleeding from percutaneous wounds to protect a patient from failed wound closure devices or related complications due to a variety of contributing factors such as state of systemic anticoagulation, errors in surgical procedure, variability in patient anatomy, and the like. Systems include a clotting agent to encase, and thus isolate, substantially the entire wound access area from the rest of the patient and an instrument, such as an intravascular introducer sheath, inserted through a wound at an access site on a vessel, for delivering the clotting agent to the entire enveloping tissue region around the accessed area as a mold cavity to be filled with the clotting agent. With benefits of patient safety, user simplicity, and low healthcare cost driving the effort, autologous whole blood is the preferred injected agent.
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Citations
19 Claims
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1. A method for delivering a tissue forming fluid to internal bleeding pathways, the method comprising:
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delivering, by an apparatus, the tissue forming fluid through skin of a patient via an access path to a subcutaneous region surrounding a vessel in a body of the patient while the tissue forming fluid is in flowable form, wherein the tissue forming fluid comprises clotting material including autologous whole blood; filling the subcutaneous region with the tissue forming fluid; maintaining a position of at least a portion of the apparatus for a period of time to allow the tissue forming fluid to at least partially solidify into a tissue mass, wherein the tissue mass is capable of being reabsorbed by the body of the patient over time, and upon at least partial solidification, the tissue mass comprises a core pin channel impression in the form of the portion of the apparatus; and removing the apparatus from the access path, wherein, upon removal, the core pin channel impression provides a channel for directing any bleeding out to the skin of the patient, thereby providing a failsafe mechanism to avoid internal bleeding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for percutaneously closing a wound, the method comprising:
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establishing, using an apparatus, an access path to a percutaneous vessel through skin of a patient; placing a clotting agent in internal bleeding pathways surrounding the percutaneous vessel while in flowable form; maintaining a position of at least a portion of the apparatus for a period of time to allow the clotting agent to at least partially solidify into a tissue cast, wherein the tissue cast is formed within internal bleeding cavities surrounding the percutaneous vessel, the tissue cast is formed in part of autologous whole blood, and the tissue cast, after solidification, is capable of being reabsorbed by the patient'"'"'s body over time, and comprises a core pin casting cavity in the form of the portion of the apparatus; and removing the apparatus from the access path, wherein, upon removal, the core pin casting cavity provides a channel for directing any bleeding out to the skin of the patient, thereby providing a failsafe mechanism to avoid internal bleeding. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification