초록 ▼

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 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. A dissolvable locating tip element, connected to the distal end of the catheter, may be used to maintain the position of the device while hemostasis takes place after the locator member is removed.

대표청구항 ▼

1. A device for percutaneous sealing of blood vessel punctures, comprising:a sealing member for percutaneously sealing a blood vessel puncture at an exterior of the blood vessel; a dissolvable locating tip fixed to a distal end of the sealing member, the locating tip being dimensioned to enter the p

1. A device for percutaneous sealing of blood vessel punctures, comprising:a sealing member for percutaneously sealing a blood vessel puncture at an exterior of the blood vessel; a dissolvable locating tip fixed to a distal end of the sealing member, the locating tip being dimensioned to enter the puncture and dissolve in the blood stream, wherein the locating tip is an elongated tubular member having a diameter of about 1.3 to about 4 mm; and wherein the sealing member has an expanded diameter which is larger than a diameter of the dissolvable locating tip.