Patents by Inventor John Hen
John Hen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11554137Abstract: A composition and method useful in promoting healing of a bleeding wound site. The composition preferably includes a substantially anhydrous acid form of a cation exchange resin, which when applied over blood, provides an antimicrobial against planktonic microorganisms and biofilms in the wound. The resin is also capable, when applied in sufficient quantities, of providing a continuing and persistent antimicrobial against planktonic microorganisms and biofilms through dehydration and ion exchange with cations present in the blood and other body fluids. When the resin has a concentration of at least 26 mg/ml, it provides a >3 log reduction in biological activity of MRSA, MRSE and Pseudomonas aeruginosa.Type: GrantFiled: January 3, 2014Date of Patent: January 17, 2023Assignee: Biolife, L.L.C.Inventors: John Hen, John Alfred Thompson, Talmadge Kelly Keene, Mark Travi
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Patent number: 9877728Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: GrantFiled: March 2, 2017Date of Patent: January 30, 2018Assignee: Biolife, L.L.C.Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Patent number: 9757412Abstract: A composition and method useful in promoting hemostasis, absorbing ooze, and being antimicrobial with respect to an open wound. The composition broadly includes an antimicrobial agent, preferably povidone iodine, preferably a ferrate compound, and a cation ion exchange resin. This composition will destroy a biofilm which has formed over the open wound in providing a soluble iron compound, a cation chelation compound, and an active antimicrobial compound effective against planktonic microorganisms and biofilms. The antimicrobial agent is locked or sealed within the scab formed over the wound to maintain long-term positioning and anti-dilution of the antimicrobial over the wound.Type: GrantFiled: July 30, 2014Date of Patent: September 12, 2017Assignee: Biolife, L.L.C.Inventors: Talmadge Kelley Keene, John Hen
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Publication number: 20170172582Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: ApplicationFiled: March 2, 2017Publication date: June 22, 2017Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Patent number: 9585671Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: GrantFiled: May 21, 2015Date of Patent: March 7, 2017Assignee: Biolife, L.L.C.Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Publication number: 20150257766Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: ApplicationFiled: May 21, 2015Publication date: September 17, 2015Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Publication number: 20150147392Abstract: A method of arresting blood flow from a bleeding wound including the steps of (1) providing a solid hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery onto a bleeding wound, the tablet defining a proximal portion and a distal portion, (2) applying the proximal portion against the bleeding wound to improve the rate of adhesion to a bleeding wound surface, and then (3) applying pressure against the tablet over the wound site. After the seal is formed from the interaction of blood or exudates with the proximal portion of the tablet, the distal portion of the tablet delaminates from the proximal portion to form a reservoir to stop further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: ApplicationFiled: January 27, 2015Publication date: May 28, 2015Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Patent number: 9039667Abstract: A method of arresting blood flow from a bleeding wound including the steps of (1) providing a solid hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery onto a bleeding wound, the tablet defining a proximal portion and a distal portion, (2) applying the proximal portion against the bleeding wound to improve the rate of adhesion to a bleeding wound surface, and then (3) applying pressure against the tablet over the wound site. After the seal is formed from the interaction of blood or exudates with the proximal portion of the tablet, the distal portion of the tablet delaminates from the proximal portion to form a reservoir to stop further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: GrantFiled: January 27, 2015Date of Patent: May 26, 2015Assignee: Biolife, L.L.C.Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Patent number: 8979726Abstract: A composition and method of arresting the flow of blood from a bleeding wound. The composition preferably includes an anhydrous salt ferrate compound preferably combined with an effective amount of an insoluble cation exchange material and an effective amount of anhydrous Magnetite mixed uniformly together. Povidone iodine may be added for enhanced antimicrobial properties. In the method, a quantity of the composition is magnetically attached to a surface of a magnet, after which the powderous mixture is applied to the wound by pressing the surface covered with the powderous compound against the wound for a time sufficient to clot the blood to arrest substantial further blood flow from the wound.Type: GrantFiled: February 6, 2013Date of Patent: March 17, 2015Assignee: Biolife, L.L.C.Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Patent number: 8961479Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.Type: GrantFiled: March 19, 2013Date of Patent: February 24, 2015Assignee: Biolife, L.L.C.Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
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Publication number: 20140341837Abstract: A composition and method useful in promoting hemostasis, absorbing ooze, and being antimicrobial with respect to an open wound. The composition broadly includes an antimicrobial agent, preferably povidone iodine, preferably a ferrate compound, and a cation ion exchange resin. This composition will destroy a biofilm which has formed over the open wound in providing a soluble iron compound, a cation chelation compound, and an active antimicrobial compound effective against planktonic microorganisms and biofilms. The antimicrobial agent is locked or sealed within the scab formed over the wound to maintain long-term positioning and anti-dilution of the antimicrobial over the wound.Type: ApplicationFiled: July 30, 2014Publication date: November 20, 2014Inventors: Talmadge Kelley Keene, John Hen
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Patent number: 8821848Abstract: A composition and method useful in promoting hemostasis, absorbing ooze, and being antimicrobial with respect to an open wound. The composition broadly includes an antimicrobial agent, preferably povidone iodine, preferably a ferrate compound, and a cation ion exchange resin. This composition will destroy a biofilm which has formed over the open wound in providing a soluble iron compound, a cation chelation compound, and an active antimicrobial compound effective against planktonic microorganisms and biofilms. The antimicrobial agent is locked or sealed within the scab formed over the wound to maintain long-term positioning and anti-dilution of the antimicrobial over the wound.Type: GrantFiled: December 20, 2012Date of Patent: September 2, 2014Assignee: Biolife, L.L.C.Inventors: Talmadge Kelly Keene, John Hen
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Publication number: 20140120052Abstract: A composition and method useful in promoting healing of a bleeding wound site. The composition preferably includes a substantially anhydrous acid form of a cation exchange resin, which when applied over blood, provides an antimicrobial against planktonic microorganisms and biofilms in the wound. The resin is also capable, when applied in sufficient quantities, of providing a continuing and persistent antimicrobial against planktonic microorganisms and biofilms through dehydration and ion exchange with cations present in the blood and other body fluids. When the resin has a concentration of at least 26 mg/ml, it provides a >3 log reduction in biological activity of MRSA, MRSE and Pseudomonas aeruginosa.Type: ApplicationFiled: January 3, 2014Publication date: May 1, 2014Applicant: BIOLIFE, LLCInventors: JOHN HEN, JOHN ALFRED THOMPSON, TALMADGE KELLY KEENE, MARK TRAVI
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Patent number: 8372441Abstract: The subject invention concerns methods for preparing alkaline earth ferrates and the preparation of hemostatic compositions from alkaline earth ferrates. In one embodiment, the alkaline earth ferrate is strontium ferrate. In one embodiment, methods of the invention comprise heat treating mixtures of alkaline earth oxides and/or peroxides with iron oxides, such as hematite or magnetite. The subject invention also concerns hemostatic compositions produced using metallic oxides that are reacted with alkaline earth oxides and/or peroxides and the methods used to produce the hemostatic compositions.Type: GrantFiled: November 30, 2009Date of Patent: February 12, 2013Assignee: Biolife, LLCInventors: John Alfred Thompson, John Hen
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Patent number: 8361504Abstract: The subject invention pertains to materials and methods for stopping or decreasing the blood flow from an open wound or medical or surgical procedure. Compositions of the invention comprise a salt form of a cross-linked polyacrylic acid. In one embodiment, the composition comprises a sodium salt of a polyacrylic acid. Compositions of the invention can also optionally comprise one or more different salt ferrates, and/or a cationic exchanger resins, and/or a silver compound. In an exemplified embodiment, a composition of the invention comprises sodium polyacrylate provided in a dry powdered form. Polyacrylate compositions of the invention can be applied directly to a wound or treatment site, or they can be incorporated into a wound dressing, such as a bandage. The clot or scab formed at a wound or treatment site treated with the present invention is extremely elastic and exhibits considerable tensile strength when stretched to the breaking point.Type: GrantFiled: April 9, 2009Date of Patent: January 29, 2013Assignee: Biolife, LLCInventors: John Hen, John Alfred Thompson, Talmadge Kelly Keene, Michael H. Tollon, Mark Travi, Roger Thomas
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Publication number: 20120087887Abstract: A composition and method useful in promoting healing of a bleeding wound site. The composition preferably includes a substantially anhydrous acid form of a cation exchange resin, which when applied over blood, provides an antimicrobial against planktonic microorganisms and biofilms in the wound. The resin is also capable, when applied in sufficient quantities, of providing a continuing and persistent antimicrobial against planktonic microorganisms and biofilms through dehydration and ion exchange with cations present in the blood and other body fluids. When the resin has a concentration of at least 26 mg/ml, it provides a >3 log reduction in biological activity of MRSA, MRSE and Pseudomonas aeruginosa.Type: ApplicationFiled: October 7, 2010Publication date: April 12, 2012Applicant: BIOLIFE, L.L.C.Inventors: John Hen, John A. Thompson, Talmadge Kelly Keene, Mark Travi
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Patent number: 8110208Abstract: A hemostatic composition for stopping or decreasing blood flow from an open wound or medical or surgical procedure. Compositions of the invention comprise a mixture of a cationic polymer and a cation exchange material. In one embodiment, the composition comprises a mixture: (1) a high molecular weight copolymer of diallyl dimethyl ammonium chloride (DADMAC) and acrylamide [DADMAC copolymer], and (2) the hydrogen form of a crosslinked, sulfonated polystyrene (hydrogen resin). In an exemplified embodiment, a composition of the invention comprises the mixture of DADMAC copolymer and hydrogen resin provided in a dry powdered form. The compositions of the invention may be applied directly to a wound or treatment site, or they may be incorporated into a wound dressing, such as a bandage. The seal formed at a wound or treatment site treated with the present invention is adhesive and exhibits considerable toughness.Type: GrantFiled: March 29, 2010Date of Patent: February 7, 2012Assignee: Biolife, L.L.C.Inventor: John Hen
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Patent number: 8007833Abstract: A method of reducing infections associated with vascular access procedures. A powder containment device (PCD) is preferably adhesively attached to a skin area, the PCD having a hole formed centrally therethrough adapted to completely surround the catheter wound site. The open cavity formed by the PCD being attached to the skin is filled with a hemostatic agent of a salt ferrate and an insoluble cation exchange material. The salt ferrate combines with blood to form a trivalent Fe+++ ion promoting blood clotting and producing oxygen at the wound site for bacteria reduction. The cation exchange material also forms a protective cover over the wound site as the trivalent Fe+++ ion is formed. Semi-occlusive pressure is applied against the hemostatic agent for a time sufficient to arrest blood flow from the wound site right after inserting or removing the catheter. The PCD and hemostatic agent are then covered with an adhesive dressing.Type: GrantFiled: September 10, 2009Date of Patent: August 30, 2011Assignee: Biolife, L.L.C.Inventors: John Hen, Roger Thomas, Griscom Bettle, Timothy J. Kelly
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Publication number: 20110060295Abstract: A method of reducing infections associated with vascular access procedures. A powder containment device (PCD) is preferably adhesively attached to a skin area, the PCD having a hole formed centrally therethrough adapted to completely surround the catheter wound site. The open cavity formed by the PCD being attached to the skin is filled with a hemostatic agent of a salt ferrate and an insoluble cation exchange material. The salt ferrate combines with blood to form a trivalent Fe+++ ion promoting blood clotting and producing oxygen at the wound site for bacteria reduction. The cation exchange material also forms a protective cover over the wound site as the trivalent Fe+++ ion is formed. Semi-occlusive pressure is applied against the hemostatic agent for a time sufficient to arrest blood flow from the wound site right after inserting or removing the catheter. The PCD and hemostatic agent are then covered with an adhesive dressing.Type: ApplicationFiled: September 10, 2009Publication date: March 10, 2011Applicant: BIOLIFE, L.L.C.Inventors: John Hen, Roger Thomas, Griscom Bettle, Timothy J. Kelly
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Publication number: 20110020425Abstract: The subject invention pertains to methods and compositions for wound treatment. The methods and compositions provide for promoting and accelerating wound healing; provide for inhibition of microbial infection; provide for a protective scab-like covering on a wound; and/or for arresting the flow of blood or body fluids from an open wound. The methods and compositions can be used to increase granulation and epithelialization in a wound. In one embodiment, a substantially anhydrous compound of a salt ferrate and a cation exchange material is provided. Compositions of the invention can also include silver compounds. In use, compositions of the invention are preferably applied as a dry dressing to an exuding chronic wound site. If the chronic wound site is dry, the wound site may be wetted with a suitable liquid or aqueous media prior to applying the dressing in dry form.Type: ApplicationFiled: September 29, 2010Publication date: January 27, 2011Applicant: Biolife, LLCInventors: John Hen, John Alfred Thompson, Talmadge Kelly Keene