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Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan

A hemostatic agent and chitosan technology, applied in the field of fluid loss medicaments, can solve problems such as difficulty in recovery, and achieve the effects of reducing the chance of wound infection, reducing fibrosis adhesion, and improving wound healing rate.

Inactive Publication Date: 2009-12-02
HEMCON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, the present invention addresses many of the important problems currently associated with the difficulties in controlling bleeding, including intraluminal bleeding, and healing from such injuries.

Method used

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  • Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan
  • Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan
  • Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as chitosan

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Embodiment Construction

[0036] While the disclosure is detailed and specific to enable those skilled in the art to practice the invention, the specific embodiments disclosed are merely illustrative of the invention, which may be embodied in other specific structures. While a preferred embodiment has been described, changes may be made to the details without departing from the invention as defined by the claims. For purposes of illustration, the present invention is disclosed in the context of treating irrepressible bleeding. It should be understood that the present invention is generally capable of treating any bleeding, with or without pressure.

[0037] I. Hemostatic agent

[0038] A. Summary

[0039] Figure 1A An intracavity abdominal injury site 10 is shown where severe internal bleeding will occur if measures are not taken to stop bleeding, close or stabilize the site. Site 10 is an area of ​​bleeding that cannot be suppressed, meaning that the bleeding is not easily exposed to direct pressu...

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Abstract

Improved hemostatic agents take the form of granules or particles that can be used to stanch, seal, or stabilize a site of hemorrhage, including a noncompressible hemorrhage.

Description

[0001] related application [0002] This application claims U.S. Provisional Application Serial No. 60 / 698,734, filed July 13, 2005, and entitled "Hemostatic Compositions, Assemblies, Systems, and Methods Employing Hemostatic Agent Microparticles Formed from Hydrophilic Polymer Foam Materials, Such as Chitosan" rights, and is incorporated herein by reference. field of invention [0003] The present invention generally relates to agents for external or internal use at the site of tissue injury or tissue trauma to ameliorate bleeding, fluid oozing or outflow, or other forms of fluid loss. Background of the invention [0004] Hemorrhage is the leading cause of death due to battlefield trauma and the second leading cause of civilian trauma death. Unrepressible bleeding (bleeding that is not readily accessible to direct pressure, such as intracavitary bleeding) is responsible for most early trauma deaths. Apart from the recommendation to apply liquid hemostatic foam and recombi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/28
CPCA61L24/0094A61K9/1652A61F2013/00931A61L15/225A61F2013/00472A61L2400/04A61P7/04C08L5/08C08L67/04A61F13/00A61K9/14
Inventor 西蒙·J·麦卡锡
Owner HEMCON
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