A method and apparatus for closing a vascular wound includes a guidewire and/or other surgical implement extending from the wound. A hemostatic material is advanced over the surgical implement and into contact with an area of the blood vessel surrounding the wound. The surgical implement is removed. Blood soaks the hemostatic material, and blood clotting is facilitated by the hemostatic agent within the material. A sealing layer of adhesive can be applied to the hemostatic material, confining the blood flow to the material. Thus, the vascular puncture wound is sealed by natural blood clot formation.

Claims

35 · 3 independent · depth 6

35 granted claims

›1.independentAn assembly for closing a vascular wound comprising:na hemostatic material adapted to facilitate blood clotting sufficient to close the vascular wound…+19

›2.↳ 1The assembly of claim 1, wherein the apparatus comprises a catheter having a tapered distal portion and at least one catheter hole proximal said dista…d2+6

›3.↳ 2The assembly of claim 2, wherein the catheter extends through the delivery tube.d3+3

›7.↳ 2The assembly of claim 2 further comprising:na stop member disposed about a surface of the catheter; anda coupling member movably disposed about the ca…d3+1

›9.↳ 1The assembly of claim 1 further comprising means for releasably and simultaneously coupling the delivery tube, the apparatus, and the pusher member in…d2

›10.↳ 1The assembly of claim 1, wherein the delivery tube is generally conical, and the inner wall of the delivery tube has a generally constant taper.d2

›11.↳ 1The assembly of claim 1, wherein the delivery tube comprises at least one weakened portion.d2+2

›14.↳ 1The assembly of claim 1, wherein the delivery tube comprises two separate halves coupled together.d2+1

›16.↳ 1The assembly of claim 1, wherein the delivery tube comprises an elastic material.d2+1

›18.↳ 1The assembly of claim 1, wherein the hemostatic material comprises a fibrous chitosan material.d2

›19.↳ 1The assembly of claim 1, wherein the delivery tube is configured so that when the pusher member engages the delivery tube proximal of at least a porti…d2

›20.↳ 1The assembly of claim 1, wherein no portion of the pusher member is disposed distal of all of the hemostatic material.d2

›21.independentA method for closing a vascular wound, comprising:nproviding an assembly comprising a delivery tube and a pusher member, the delivery tube defining a …+8

›22.↳ 21The method of claim 21, wherein the delivery tube breaks when the pusher member is moved distally so that the engagement portion engages the delivery …d2

›23.↳ 21The method of claim 21, wherein when the pusher member is moved distally relative to the delivery tube, the pusher member engages the hemostatic mater…d2+2

›26.↳ 21The method of claim 21 additionally comprising providing a catheter extending through the delivery tube chamber, wherein the distal end of the chamber…d2

›27.↳ 21The method of claim 21, wherein the pusher member engagement portion engages the delivery tube at a point proximal of the hemostatic material within t…d2

›28.↳ 21The method of claim 21, wherein the assembly is provided with the delivery tube and the pusher member being releasably coupled so as to move as a unit…d2

›29.↳ 21The method of claim 21 additionally comprising providing a catheter extending through the delivery tube chamber, wherein the distal end of the chamber…d2

›30.independentAn assembly for closing a vascular wound comprising:na hemostatic material;a delivery tube having a proximal end and a distal end, an inner wall of th…+5

An assembly for closing a vascular wound comprising:na hemostatic material;a delivery tube having a proximal end and a distal end, an inner wall of the delivery tube defining a chamber that accommodates the hemostatic material therewithin, a first portion of the chamber having a first diameter, a second portion of the chamber being proximal of the first portion and having a second diameter greater than the first diameter, and a third portion of the chamber being proximal of the second portion and having a third diameter greater than the second diameter;a catheter extending through the delivery tube, the chamber being defined between the catheter and the inner wall, the distal end of the delivery tube engaging the catheter so that the chamber is closed at its distal end;an apparatus configured to position the distal end of the delivery tube at or near a vascular wound;a pusher member having an engagement portion configured to fit within the third portion of the chamber, the engagement portion of the pusher member having a diameter greater than the first and second chamber portion diameters, but less than or equal to the third chamber portion diameter; andthe hemostatic material being within the chamber between the first portion and the third portion, the chamber enclosing the hemostatic material therewithin, the engagement portion of the pusher member being disposed generally proximal of the hemostatic material;wherein the pusher member and chamber are configured so that when the pusher member is moved distally relative to the delivery tube, the hemostatic material remains enclosed within the chamber and generally distal of the pusher member engagement portion until the pusher member engagement portion engages the inner wall in the second chamber portion and deforms the delivery tube so that at least one opening is created in the chamber, and the pusher member dispatches the hemostatic material through the at least one opening created when the pusher member deforms the delivery tube.

›31.↳ 30An assembly as in claim 30, wherein the inner wall is tapered generally continuously from the first chamber portion to the third chamber portion.d2+2

›34.↳ 30An assembly as in claim 30, wherein the delivery tube comprises a retractor having at least two retractor halves movably connected to each other, wher…d2

›35.↳ 30An assembly as in claim 30, wherein the pusher member engagement portion engages the inner wall in the second chamber portion at a position proximal t…d2

Classifications

4 codes

IPC · International Patent Classification

Section A — Human necessities

A61B17/03

USPC · US Patent Classification

606/213604/59604/15

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Pendency

6.8 y

2,472 days filing → grant

Office actions

non-final + final

Responses

3 RCE

Examiner

Kathleen Sonnett

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Priority chain

2 priority documents

Priority

14 Jun 2002

earliest claimed

›Priority documents — 2

Type	Document	Date
provisional	US 60389239 00	14 Jun 2002
related publication	US 20040054346 A1	18 Mar 2004

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