[특허]Method and apparatus for hemostasis

Damage Control Surgical Technologies, Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Method and apparatus for hemostasis

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-013/00
미국특허분류(USC)	602/053; 602/042; 602/043; 602/048; 602/054
출원번호	US-0087224 (2005-03-23)
등록번호	US-7329792 (2008-02-12)
발명자 / 주소	Buckman,Robert F. Lenker,Jay A. Kolehmainen,Donald J.
출원인 / 주소	Damage Control Surgical Technologies, Inc.
인용정보	피인용 횟수 : 19 인용 특허 : 15

초록
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Devices and methods are disclosed for achieving hemostasis in patients who have received skin-penetrating wounds to the periphery, including the head, arms, and legs. Such haemostatic packing devices and methods are especially useful in the emergency, trauma surgery, or military setting. The devices utilize fluid impermeable barriers surrounded by exterior dams and pressure to achieve tamponade and hemostasis, primarily by exertion of force to hold the dams against the skin surrounding a wound. The devices are capable of serving as carriers for thrombogenic, antimicrobial or antipathogenic agents. The devices do not require the use of adhesives to work as they are attached to the patient using mechanical locking devices. Peripheral haemostatic packing devices include optional adhesive hemostatic barriers to attach at least a portion of the device to the skin or to assist with initial coupling of a hold-down strap to another strap using a more secure mechanical lock. The peripheral hemostatic packing system does not completely surround the extremity having the wound and therefore do not cause a tourniquet effect. The peripheral hemostatic packing system preferably is held against the skin surrounding a wound by a force that is generally unidirectional and substantially perpendicular to the plane in which the skin of the wound resides.

대표
청구항
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What is claimed is: 1. An apparatus adapted to prevent hemorrhage from a skin-penetrating wound in a human body comprising: a liquid impermeable region that covers the wound, a strap to which the liquid impermeable region is affixed to hold said liquid impermeable region over said wound without the use of adhesives, at least one dam or gasket, which seals the liquid impermeable region to the skin of the human body without the use of adhesives, a locking device to affix the strap to the human body and force the at least one dam or gasket against the skin with enough force to prevent blood leakage therefrom, wherein the area inside the at least one dam, the liquid impermeable region, and the skin around the wound form a cavity from which blood cannot escape under systemic arterial pressure, and a packing device centrally disposed on the liquid impermeable region, wherein said packing device exerts pressure to the wound to minimize hemorrhage, and wherein the packing device comprises a sealed, expandable chamber and an inflation device to fill said sealed, expandable chamber with liquid or gas. 2. The apparatus of claim 1 wherein at least one dam seals against the skin comprising the periphery of said wound by a pressure seal. 3. The apparatus of claim 1 wherein said strap generates enough force to provide a hemostatic pressure seal between at least one dame and the skin. 4. The apparatus of claim 1 comprising a plurality of dams. 5. The apparatus of claim 1 wherein said plurality of dams are interconnected by at least two shunt dams that forms at least two compartments between the dams. 6. The apparatus of claim 1 further comprising a flexible, substantially inelastic scrim that underlies the dam and fluid impermeable region. 7. An apparatus adapted to prevent hemorrhage from a skin-penetrating wound in a human body comprising: a liquid impermeable region that covers the wound, a strap to which the liquid impermeable region is affixed to hold said liquid impermeable region over said wound without the use of adhesives, at least one dam or gasket, which seals the liquid impermeable region to the skin of the human body without the use of adhesives, a locking device to affix the strap to the human body and force the at least one dam or gasket against the skin with enough force to prevent blood leakage therefrom, wherein the area inside the at least one dam, the liquid impermeable region, and the skin around the wound form a cavity from which blood cannot escape under systemic arterial pressure, and a rigid collar that extends about at least a portion of the appendage where the wound is being treated and over which the bandage is wrapped, wherein the rigid collar does not come between the liquid impermeable region and dam and the patient's skin, further wherein the rigid collar is larger in size than the appendage so that it does not touch the appendage at substantially all points along the interior surface of the collar. 8. The apparatus of claim 7 wherein the locking device comprises a hook and loop material. 9. The apparatus of claim 7 comprising a plurality of dams. 10. The apparatus of claim 9 wherein said plurality of dams forms a pattern of concentric or nested structures. 11. The apparatus of claim 10 wherein the region between the nested structures comprises thrombogenic material. 12. The apparatus of claim 7, further comprising a flexible, substantially inelastic scrim that underlies the dam and fluid impermeable region. 13. The apparatus of claim 7 wherein said dam seals against the skin comprising the periphery of said wound by a pressure seal. 14. The apparatus of claim 7 wherein said strap generates enough force to provide a hemostatic pressure seal between the at least one dam and the skin. 15. An apparatus adapted to prevent hemorrhage from a skin-penetrating wound in a human body comprising: a liquid impermeable region that covers the wound, a strap to which the liquid impermeable region is affixed to hold said liquid impermeable region over said wound without the use of adhesives, a plurality of dams or gaskets, which seal the liquid impermeable region to the skin of the human body without the use of adhesives, and a locking device to affix the strap to the human body and force the dams or gaskets against the skin with enough force to prevent blood leakage therefrom, wherein the area inside the dams or gaskets, the liquid impermeable region, and the skin around the wound form a cavity from which blood cannot escape under systemic arterial pressure, and wherein a vacuum is drawn on the region between two nested dams or gaskets to hold the dams or gaskets against the patient. 16. A method of minimizing hemorrhage from a skin-penetrating wound to the extremity of a mammal comprising the steps of: placing a liquid impermeable region over the wound such that dams at or near the periphery of said liquid impermeable region rest outside the wound but against the skin; wrapping a strap, affixed to said liquid impermeable region, around the extremity to hold the dams surrounding the liquid impermeable region against the skin surrounding the wound to the extremity; tightening the strap to force the dams into the skin; locking the straps to each other to maintain the straps around the extremity; and drawing a vacuum in the region between two of the dams to assist in holding the dams against the skin. 17. The method of claim 16 further comprising the step of applying thrombogenic material to the region between the dams. 18. A method of minimizing hemorrhage from a skin-penetrating wound to the extremity of a mammal comprising the steps of: placing a liquid impermeable region over the wound such that dams at or near the periphery of said liquid impermeable region rest outside the wound but against the skin; wrapping a strap, affixed to said liquid impermeable region, around the extremity to hold the dams surrounding the liquid impermeable region against the skin surrounding the wound to the extremity; tightening the strap to force the dams into the skin; locking the straps to each other to maintain the straps around the extremity; and applying a semi-rigid or rigid C-Bracelet to the extremity to minimize a tourniquet effect caused by the tight straps, wherein the C-Bracelet does not completely touch the extremity and effectively squeezes the dams against the extremity only in one direction. 19. The method of claim 18, further comprising the step of applying a temporary adhesive edge, affixed to at least one end of the strap, to the skin to aid in placement and control of the liquid impermeable region over the wound. 20. The method of claim 18, wherein the liquid impermeable region comprises at least two nested or concentric dams, and further comprising the step applying thrombogenic material to the region between the dams.

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Method and apparatus for hemostasis

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Method and apparatus for hemostasis

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이 특허에 인용된 특허 (15)

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