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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0528892 (1995-09-15) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 297 인용 특허 : 0 |
A device for promoting hemostasis in a blood vessel puncture is employed with an introducer that accesses the puncture through an incision. The introducer has an open distal end positionable at the puncture, an external portion with an open proximal end, and an axial channel therebetween. The device
A device for promoting hemostasis in a blood vessel puncture is employed with an introducer that accesses the puncture through an incision. The introducer has an open distal end positionable at the puncture, an external portion with an open proximal end, and an axial channel therebetween. The device includes a hollow catheter, dimensioned to pass through the introducer channel, having a distal end to which is attached an expansible compression element, which may be an inflatable balloon, a collapsible prong assembly, or a resilient foam pad. The compression element is collapsed when the distal end of the catheter is enclosed within the introducer. When the catheter and the introducer are located the desired distance from the puncture, the introducer is displaced axially relative to the catheter to expose the compression element to the subcutaneous tissue, whereupon the compression element is expanded. Pressure is applied to the compression element through the introducer to promote hemostasis by the compression of subcutaneous tissue adjacent the puncture. The device preferably includes a locator member passing through the catheter and into the blood vessel through the puncture. The locator member may be either a guide wire, or a hollow tube with a locating balloon, disposed near the portion of the tube insertable into the vessel. The guide wire may be viewed fluoroscopically to determine the proper distance from the vessel for deployment of the compression element, while the balloon-type locator element uses the inflated locating balloon for determining proper deployment position.
A device for promoting hemostasis in a blood vessel puncture by compressing the subcutaneous tissue adjacent the puncture, wherein the puncture is accessed subcutaneously through an incision, the device comprising: an introducer configured to provide access to the puncture through the incision, the
A device for promoting hemostasis in a blood vessel puncture by compressing the subcutaneous tissue adjacent the puncture, wherein the puncture is accessed subcutaneously through an incision, the device comprising: an introducer configured to provide access to the puncture through the incision, the introducer having a proximal portion, a distal end initially positionable within the puncture, and an axial channel therebetween; a catheter dimensioned to be received within the axial channel and having an axial lumen communicating with an open distal end, the introducer being axially movable relative to the catheter between a distal position and a proximal position, the distal end of the catheter being enclosed within the introducer when the introducer is in its distal position, and being exposed to the subcutaneous tissue distally from the distal end of the introducer when the introducer is moved to its proximal position; an elongate, flexible locator member extending through the catheter lumen and the distal end of the catheter and having a distal portion extensible into the interior of the vessel through the puncture; and expansible compression means attached to the distal end of the catheter, for compressing the subcutaneous tissue adjacent the puncture sufficiently to promote hemostasis at the puncture, the compression means having a collapsed position when the distal end of the catheter is enclosed, and an expanded tissue-compressing position when the distal end of the catheter is exposed.
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