EP3177276A4 - A coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating - Google Patents

A coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating Download PDF

Info

Publication number: EP3177276A4
Authority: EP; European Patent Office
Prior art keywords: water; blood coagulation; starch coating; insoluble chitosan; coagulation structure
Prior art date: 2014-08-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP15829439.7A

Other languages

German (de)

French (fr)

Other versions

EP3177276A1 (en

Inventor

James F. Drake

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Chitogen Inc

Original Assignee

Individual

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2014-08-04

Filing date

2015-08-04

Publication date

2018-04-04

2014-08-04 Priority claimed from US14/451,417 external-priority patent/US10137219B2/en

2014-12-16 Priority claimed from US14/572,749 external-priority patent/US9598504B2/en

2015-08-04 Application filed by Individual filed Critical Individual

2017-06-14 Publication of EP3177276A1 publication Critical patent/EP3177276A1/en

2018-04-04 Publication of EP3177276A4 publication Critical patent/EP3177276A4/en

Status Withdrawn legal-status Critical Current

Classifications

- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding

Landscapes

Health & Medical Sciences (AREA)
Hematology (AREA)
Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Epidemiology (AREA)
Life Sciences & Earth Sciences (AREA)
Animal Behavior & Ethology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Materials For Medical Uses (AREA)

EP15829439.7A 2014-08-04 2015-08-04 A coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating Withdrawn EP3177276A4 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US14/451,417 US10137219B2 (en)	2014-08-04	2014-08-04	Coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating
US14/572,749 US9598504B2 (en)	2014-12-16	2014-12-16	Process for the removal of endotoxins to produce medical quality chitosan and other polysaccharides
PCT/US2015/043510 WO2016022504A1 (en)	2014-08-04	2015-08-04	A coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating

Publications (2)

Publication Number	Publication Date
EP3177276A1 EP3177276A1 (en)	2017-06-14
EP3177276A4 true EP3177276A4 (en)	2018-04-04

Family

ID=55264405

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15829439.7A Withdrawn EP3177276A4 (en)	2014-08-04	2015-08-04	A coherent blood coagulation structure of water-insoluble chitosan and water-dispersible starch coating

Country Status (4)

Country	Link
EP (1)	EP3177276A4 (en)
AU (1)	AU2015301282A1 (en)
CA (1)	CA2959946C (en)
WO (1)	WO2016022504A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN113117154B (en) *	2019-12-31	2022-10-21	东莞市先健医疗有限公司	Hydrophilic coating solution, method for preparing the same, and medical device coated with the same
CN116099030B (en) *	2022-11-15	2024-08-02	青岛海诺生物工程有限公司	Chitosan breathable adhesive bandage and preparation method thereof
CN115970044B (en) *	2022-12-29	2024-12-24	德晟康(苏州)生物科技有限公司	Double-layer chitosan hemostatic sponge and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20050240137A1 (en) *	2004-02-23	2005-10-27	Zhu Yong H	Hemostatic agent for topical and internal use

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6197322B1 (en) *	1997-12-23	2001-03-06	Kimberly-Clark Worldwide, Inc.	Antimicrobial structures
EP1149597A1 (en) *	2000-04-25	2001-10-31	The Procter & Gamble Company	Breathable absorbent articles comprising chitosan material
US20090062233A1 (en) *	2007-08-09	2009-03-05	Xin Ji	Modified starch material of biocompatible hemostasis
US20120021217A1 (en) *	2009-02-21	2012-01-26	Ahmed Robert Hadba	Fibers with an activated surface and method of making same by extrusion

2015
- 2015-08-04 AU AU2015301282A patent/AU2015301282A1/en not_active Abandoned
- 2015-08-04 WO PCT/US2015/043510 patent/WO2016022504A1/en active Application Filing
- 2015-08-04 EP EP15829439.7A patent/EP3177276A4/en not_active Withdrawn
- 2015-08-04 CA CA2959946A patent/CA2959946C/en active Active

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20050240137A1 (en) *	2004-02-23	2005-10-27	Zhu Yong H	Hemostatic agent for topical and internal use

Also Published As

Publication number	Publication date
CA2959946A1 (en)	2016-02-11
AU2015301282A1 (en)	2017-03-23
EP3177276A1 (en)	2017-06-14
WO2016022504A1 (en)	2016-02-11
CA2959946C (en)	2019-07-09

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Legal Events

Date	Code	Title	Description
2017-05-12	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2017-06-14	17P	Request for examination filed	Effective date: 20170303
2017-06-14	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2017-06-14	AX	Request for extension of the european patent	Extension state: BA ME
2017-11-08	DAV	Request for validation of the european patent (deleted)
2017-11-08	DAX	Request for extension of the european patent (deleted)
2018-04-04	A4	Supplementary search report drawn up and despatched	Effective date: 20180302
2018-04-04	RIC1	Information provided on ipc code assigned before grant	Ipc: A61K 9/70 20060101AFI20180226BHEP Ipc: A61L 15/28 20060101ALI20180226BHEP
2019-11-27	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: CHITOGEN, INC.
2019-11-27	RIN1	Information on inventor provided before grant (corrected)	Inventor name: DRAKE, JAMES F.
2020-01-22	17Q	First examination report despatched	Effective date: 20200102
2020-10-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2020-11-04	18D	Application deemed to be withdrawn	Effective date: 20200603