US6086607A — Device and method for facilitating hemostasis of …

Claim 1

Independent Claim 87 words

A system for injecting a sponge into tissue, the system comprising: a pledget of sponge having a proximal end with a larger cross sectional area than a distal end; a cannula for delivering the pledget in a hydrated state to the tissue; and an adaptor connectable to the cannula for hydrating and delivering the pledget to the cannula, the adaptor having a tapered lumen with a large diameter proximal end and a small diameter distal end, wherein the small diameter distal end is connectable to the cannula.

Claim 2

Independent Claim 87 words

A system for injecting a sponge into tissue, the system comprising: a pledget of sponge having a proximal end with a larger cross sectional area than a distal end; a cannula for delivering the pledget in a hydrated state to the tissue; and an adaptor connectable to the cannula for hydrating and delivering the pledget to the cannula, the adaptor having a tapered lumen with a large diameter proximal end and a small diameter distal end, wherein the small diameter distal end is connectable to the cannula.

Claim 3

Dependent Claim 27 words

The system of claim 1, wherein the pledget is formed from a sheet of sponge material which is folded to form the larger cross sectional proximal end.

Claim 4

Dependent Claim 29 words

The system of claim 1, wherein the pledget proximal end has a cross sectional area of about 1.2 to 4 times a cross sectional area of the distal end.

Claim 5

Dependent Claim 27 words

The system of claim 1, wherein the pledget proximal end with the larger cross sectional area extends along 1/8 to 3/4 of total length of the pledget.

Claim 6

Dependent Claim 13 words

The system of claim 1, wherein the sponge is an absorbable sponge material.

Claim 7

Independent Claim 63 words

A method of forming a sponge pledget for delivery to tissue, the method comprising: cutting a strip of sponge from a sheet of sponge material; and folding the strip to form a pledget with a first end having a first cross sectional area and a second folded end having a second cross sectional area which is larger than the first cross sectional area.

Claim 8

Independent Claim 63 words

A method of forming a sponge pledget for delivery to tissue, the method comprising: cutting a strip of sponge from a sheet of sponge material; and folding the strip to form a pledget with a first end having a first cross sectional area and a second folded end having a second cross sectional area which is larger than the first cross sectional area.

Claim 9

Dependent Claim 16 words

The method of claim 6, wherein the strip is cut with the aid of a template.

Claim 10

Dependent Claim 19 words

The method of claim 7, wherein the template is attached to a device for hydrating and delivering the pledget.

Claim 11

Dependent Claim 25 words

The method of claim 6, wherein a crease is formed in the strip by a cutting template and the strip is folded along the crease.

Claim 12

Independent Claim 141 words

A system for preparing and delivering a hydrated sponge to a cannula for delivery to tissue, the system comprising: an adaptor comprising: an elongated member having a first end, a second end, and a lumen extending from the first end to the second end; a luer connector provided at the second end for connection to a cannula; and a tapered section of the lumen tapering from a first diameter at the first end to a second diameter at the second end which is smaller than the first diameter such that a dry sponge pledget having a width larger than the second diameter is compressible when hydrated to allow passage of the pledget into the second diameter; and a template configured for use in cutting the sponge to a size to be received in the elongated member for delivery to the cannula.

Claim 13

Independent Claim 141 words

A system for preparing and delivering a hydrated sponge to a cannula for delivery to tissue, the system comprising: an adaptor comprising: an elongated member having a first end, a second end, and a lumen extending from the first end to the second end; a luer connector provided at the second end for connection to a cannula; and a tapered section of the lumen tapering from a first diameter at the first end to a second diameter at the second end which is smaller than the first diameter such that a dry sponge pledget having a width larger than the second diameter is compressible when hydrated to allow passage of the pledget into the second diameter; and a template configured for use in cutting the sponge to a size to be received in the elongated member for delivery to the cannula.

Claim 14

Dependent Claim 21 words

The adaptor of claim 10, wherein the template includes a recess sized and shaped to form an elongated strip of sponge.

Claim 15

Dependent Claim 35 words

The adaptor of claim 10, wherein the template includes a cutting edge for cutting along with a blade to form a strip of sponge and a creasing bar for forming a crease across the strip.

Claim 16

Dependent Claim 14 words

The adaptor of claim 10, wherein the template is attached to the elongated member.

Claim 17

Dependent Claim 92 words

An adaptor system for delivering a hydrated sponge to a cannula for delivery to tissue, the system comprising: an elongated adaptor having a distal end, a proximal end, a lumen tapering from a larger diameter at a proximal end to a smaller diameter at the distal end, and a luer connection at the distal end; and a removable vent cap configured to engage the luer connection, the vent cap having a vent hole which allows fluid to pass out of the adaptor but prevents the sponge from passing through the vent hole.

Claim 18

Dependent Claim 92 words

An adaptor system for delivering a hydrated sponge to a cannula for delivery to tissue, the system comprising: an elongated adaptor having a distal end, a proximal end, a lumen tapering from a larger diameter at a proximal end to a smaller diameter at the distal end, and a luer connection at the distal end; and a removable vent cap configured to engage the luer connection, the vent cap having a vent hole which allows fluid to pass out of the adaptor but prevents the sponge from passing through the vent hole.

Claim 19

Dependent Claim 30 words

The adaptor system of claim 14, wherein the vent cap is configured to position a distal end of the sponge at a predetermined longitudinal position with respect to the adaptor.

Claim 20

Dependent Claim 20 words

The adaptor system of claim 15, wherein the predetermined longitudinal position is proximal of the distal end of the adaptor.

Claim 21

Dependent Claim 24 words

The adaptor system of claim 14, wherein the vent cap includes a conical portion configured to extend into the distal end of the adaptor.

Claim 22

Dependent Claim 19 words

The adaptor system of claim 17, wherein the vent hole is provided at a tip of the conical portion.

Claim 23

Independent Claim 65 words

A method of delivering a sponge into a tissue access tract comprising: delivering a hydrated sponge pledget through a cannula positioned in a tissue access tract at a velocity E while withdrawing the cannula from the tissue at a velocity V to deposit the sponge pledget and seal the tissue access tract, wherein the velocity E is greater than or equal to the velocity V.

Claim 24

Independent Claim 65 words

A method of delivering a sponge into a tissue access tract comprising: delivering a hydrated sponge pledget through a cannula positioned in a tissue access tract at a velocity E while withdrawing the cannula from the tissue at a velocity V to deposit the sponge pledget and seal the tissue access tract, wherein the velocity E is greater than or equal to the velocity V.

Claim 25

Dependent Claim 16 words

The method of claim 19, wherein the velocity E is provided by injection of a fluid.

Claim 26

Dependent Claim 14 words

The method of claim 19, wherein the velocity E is provided by a plunger.

Claim 27

Dependent Claim 21 words

The method of claim 19, wherein a portion of the tissue access tract being filled spans two or more anatomical structures.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2003-07-11	2004-01-10	2004-07-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2007-07-11	2008-01-10	2008-07-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2011-07-11	2012-01-10	2012-07-11	$7700.00	Window Closed / Lapsed

Device and method for facilitating hemostasis of a biopsy tract

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag