Patents by Inventor Yi-Lan Wang
Yi-Lan Wang 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: 12201743Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: GrantFiled: January 5, 2024Date of Patent: January 21, 2025Assignee: Cilag GMBH InternationalInventor: Yi-Lan Wang
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Publication number: 20240173457Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: ApplicationFiled: January 5, 2024Publication date: May 30, 2024Inventor: Yi-Lan Wang
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Publication number: 20240148933Abstract: The present invention is directed to compressed hemostatic tablets or forms comprising a fibrous non-woven oxidized cellulose (OC or ORC) multilayer material compressed into a form stable tablet, further comprising calcium salt, with the tablets rapidly expandable on contact with blood or blood plasma. The compressed forms may further comprise a multi-arm PEG-SG and are dimensionally, preferably with regard to length and width, stable for at least 48 hours after compression. In some embodiments, the compressed forms will expand upon contact with blood from 1.5 to 5 times of tablet length in 5 seconds; from 2 to 6 times of tablet length in 20 seconds; and from 3 to 6 times of tablet length in 5 minutes. The compressed forms are effective in hemostasis in heparinized blood.Type: ApplicationFiled: November 8, 2022Publication date: May 9, 2024Applicant: Ethicon, Inc.Inventors: Yi-Lan Wang, Tien-Jung Lee
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Patent number: 11896732Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: GrantFiled: December 22, 2021Date of Patent: February 13, 2024Assignee: Cilag GmbH InternationalInventor: Yi-Lan Wang
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Patent number: 11883554Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.Type: GrantFiled: April 13, 2021Date of Patent: January 30, 2024Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Publication number: 20220331475Abstract: The present invention is directed to a hemostatic patch comprising a porous substrate and at least a pair of co-reactive polymer reagents comprising at least one nucleophilic polyalkylene oxide based component and at least one electrophilic polyalkylene oxide-based on the porous substrate in a molar ratio of about 0.2 to about 0.9:1 of primary nucleophilic groups in excess to available electrophilic groups. The present invention is also directed to processes for the manufacture and use of such hemostatic patches.Type: ApplicationFiled: February 9, 2022Publication date: October 20, 2022Inventors: Nir Nativ, Thomas Weindl, Benjamin D. Fitz, Gerard Llanos, Guanghui Zhang, Yi-Lan Wang, Meng Deng
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Publication number: 20220184272Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: ApplicationFiled: December 22, 2021Publication date: June 16, 2022Inventor: Yi-Lan Wang
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Patent number: 11235085Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: GrantFiled: July 10, 2018Date of Patent: February 1, 2022Assignee: Cilag GmbH InternationalInventor: Yi-Lan Wang
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Publication number: 20210228767Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.Type: ApplicationFiled: April 13, 2021Publication date: July 29, 2021Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Patent number: 11007299Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.Type: GrantFiled: November 8, 2017Date of Patent: May 18, 2021Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Patent number: 10456526Abstract: The present invention is directed to a multi-compartment medical device for segregated storage and on demand mixing of at least two components and expression of a resulting mixture from the device having a tubular barrel with an opening and a gasket sealing the rear end through which a plunger is axially slidable within the tubular barrel. At least one bypass is provided in the barrel in order to enable fluid movement of the components between front and rear compartments and rear compartments. The present invention is also directed to methods for the use of such devices.Type: GrantFiled: July 13, 2017Date of Patent: October 29, 2019Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Patent number: 10426850Abstract: The present invention provides both a caged collagen mimetic peptide (CCMP) having the formula: L-S-Zm-[Gly-X-Y]n-LGly-X-Y-[Gly-X-Y]n (SEQ ID NO: 19); wherein L is one or more detectable moieties; S is one or more spacer molecules; Zm is any amino acid where m is an integer of 1 to 10; X is proline or modified proline; Y is proline or modified proline; Gly is glycine; n is an integer from 1 to 20; and LGly is a glycine covalently linked to a cage moiety comprising a labile protecting group, as well as a collagen mimetic peptides lacking the labile protecting group (CMP). The inventions are useful for binding collagen and denatured collagen and/or gelatin both in vitro and in vivo, and are useful for targeting any organ or tissue where collagen is present, and can be used for research and diagnostic imaging (both in vivo and in vitro) and also for in vivo therapeutic applications.Type: GrantFiled: November 16, 2012Date of Patent: October 1, 2019Assignee: THE JOHNS HOPKINS UNIVERSITYInventors: Michael S. Yu, Yang Li, Daniel Summerfield, Allen Yi-Lan Wang, Catherine A. Foss, Martin G. Pomper
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Publication number: 20190134258Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.Type: ApplicationFiled: November 8, 2017Publication date: May 9, 2019Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Patent number: 10183132Abstract: The present invention is directed to an integrated delivery device that is operable with one hand and provides co-delivery of a liquid medicant and a powder medicant onto a tissue or wound from a liquid medicant expression subunit and a powder medicant expression subunit. Each expression subunit having an actuator for the liquid medicant and the powder medicant contained therein that are positioned in close proximity to one other at a proximate end of said expression subunits and delivery cannulas for each of said expression subunits that positioned in close proximity to one other at a distal end of said expression subunits. The present invention also relates to method for using such integrated devices.Type: GrantFiled: May 28, 2015Date of Patent: January 22, 2019Assignee: Ethicon LLCInventors: Yi-Lan Wang, Leo B. Kriksunov
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Publication number: 20180311405Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: ApplicationFiled: July 10, 2018Publication date: November 1, 2018Inventor: Yi-Lan Wang
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Patent number: 10034957Abstract: The present invention is directed to a hemostatic material comprising a compacted, hemostatic aggregates of cellulosic fibers. In some aspects, the hemostatic material further includes additives, such as carboxymethyl cellulose (CMC) or other polysaccharides, calcium salts, anti-infective agents, hemostasis promoting agents, gelatin, collagen, or combinations thereof. In another aspect, the present invention is directed to a method of making the hemostatic materials described above by compacting a cellulosic-based material into hemostatic aggregates. In another aspect, the present invention is directed to a method of treating a wound by applying hemostatic materials described above onto and/or into the wound of a patient.Type: GrantFiled: October 28, 2016Date of Patent: July 31, 2018Assignee: Ethicon LLCInventor: Yi-Lan Wang
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Patent number: 10022411Abstract: The present invention relates generally to agents and devices for promoting hemostasis and, more particularly, to an extract of a plant-based “Traditional Chinese Medicinal” product and devices incorporating such agents for the delivery thereof to bleeding wounds.Type: GrantFiled: September 20, 2013Date of Patent: July 17, 2018Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Xintian Ming
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Patent number: 10022410Abstract: The present invention relates generally to agents and devices for promoting hemostasis and, more particularly, to an extract of a plant-based “Traditional Chinese Medicinal” product and devices incorporating such agents for the delivery thereof to bleeding wounds.Type: GrantFiled: December 22, 2010Date of Patent: July 17, 2018Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Xintian Ming
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Publication number: 20170319786Abstract: The present invention is directed to a multi-compartment medical device for segregated storage and on demand mixing of at least two components and expression of a resulting mixture from the device having a tubular barrel with an opening and a gasket sealing the rear end through which a plunger is axially slidable within the tubular barrel. At least one bypass is provided in the barrel in order to enable fluid movement of the components between front and rear compartments and rear compartments. The present invention is also directed to methods for the use of such devices.Type: ApplicationFiled: July 13, 2017Publication date: November 9, 2017Inventors: Yi-Lan Wang, Leo B. Kriksunov
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Patent number: 9731076Abstract: The present invention is directed to a multi-compartment medical device for segregated storage and on demand mixing of at least two components and expression of a resulting mixture from the device having a tubular barrel with an opening and a gasket sealing the rear end through which a plunger is axially slidable within the tubular barrel. At least one bypass is provided in the barrel in order to enable fluid movement of the components between front and rear compartments and rear compartments. The present invention is also directed to methods for the use of such devices.Type: GrantFiled: June 29, 2012Date of Patent: August 15, 2017Assignee: Ethicon, Inc.Inventors: Yi-Lan Wang, Leo B. Kriksunov