US20020072767A1
Expired / Lapsed
US
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Method and apparatus for closing vascular puncture using hemostatic material
Assignee: Loma Linda University
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Filing: 2001-08-01
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Granted: —
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Expires: 2021-08-01
Abstract
Abstract 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.
Inventors
- 👤 Yong Zhu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B17/00491; A61B2017/00637; A61B2017/00646; A61B2017/00654; A61B2017/00659
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
196 words
1 . A method for closing a wound in a blood vessel of a patient, comprising: providing a guidewire extending through the wound and out of the patient; providing a catheter adapted to accommodate the guidewire and comprising a lumen, the catheter having at least one hole formed through a side of the catheter, the at least one hole communicating with the lumen; providing a source of suction; placing the lumen into communication with the source of suction; providing a retractor having a plurality of elongate retractor arms; coupling the retractor to the catheter so that a distal end of each retractor arm is positioned proximal of the hole a distance at least the same as a thickness of a wall of the artery; mounting a hemostatic material onto the catheter; threading the catheter over the guidewire; advancing the catheter and retractor over the guidewire until blood is drawn through the at least one hole in the lumen; actuating the retractor to at least partially provide access to an outer wall of the artery surrounding the wound; advancing the hemostatic material over the catheter into contact with the artery; and removing the retractor, catheter and guidewire.
Claim 2
Dependent Claim
196 words
1 . A method for closing a wound in a blood vessel of a patient, comprising: providing a guidewire extending through the wound and out of the patient; providing a catheter adapted to accommodate the guidewire and comprising a lumen, the catheter having at least one hole formed through a side of the catheter, the at least one hole communicating with the lumen; providing a source of suction; placing the lumen into communication with the source of suction; providing a retractor having a plurality of elongate retractor arms; coupling the retractor to the catheter so that a distal end of each retractor arm is positioned proximal of the hole a distance at least the same as a thickness of a wall of the artery; mounting a hemostatic material onto the catheter; threading the catheter over the guidewire; advancing the catheter and retractor over the guidewire until blood is drawn through the at least one hole in the lumen; actuating the retractor to at least partially provide access to an outer wall of the artery surrounding the wound; advancing the hemostatic material over the catheter into contact with the artery; and removing the retractor, catheter and guidewire.
Claim 3
Dependent Claim
31 words
2 . The method of claim 1 additionally comprising holding the hemostatic material in position until it is anticipated that the hemostatic material has become at least partially soaked with blood.
Claim 4
Dependent Claim
28 words
3 . The method of claim 1 additionally comprising applying a flowable adhesive to the hemostatic material before the material is advanced into contact with the blood vessel.
Claim 5
Dependent Claim
34 words
4 . The method of claim 1 additionally comprising applying adhesive to a portion of the blood vessel adjacent the puncture wound prior to advancing the hemostatic material into contact with the blood vessel.
Claim 6
Dependent Claim
29 words
5 . The method of claim 1 additionally comprising applying a flowable adhesive to the hemostatic material after the material has been advanced into contact with the blood vessel.
Claim 7
Dependent Claim
29 words
6 . The method of claim 1 additionally comprising providing a viewing portion communicating with the lumen and adapted to enable identification of bodily fluids drawn through the lumen.
Claim 8
Dependent Claim
21 words
7 . The method of claim 6 , wherein the catheter is substantially transparent, and the viewing portion comprises the catheter.
Claim 9
Dependent Claim
22 words
8 . The method of claim 1 additionally comprising providing a push member adapted to advance the hemostatic material over the catheter.
Claim 10
Dependent Claim
19 words
9 . The method of claim 8 additionally comprising holding the hemostatic material in position using the push member.
Claim 11
Dependent Claim
66 words
10 . A method for closing a vascular wound, comprising: locating the wound; positioning a surgical implement so that a portion of the implement extends through the wound and a portion extends out of the wound; providing a hemostatic material; positioning the hemostatic material about the implement; and advancing the hemostatic material over the surgical implement so that the hemostatic material is disposed adjacent the wound.
Claim 12
Dependent Claim
66 words
10 . A method for closing a vascular wound, comprising: locating the wound; positioning a surgical implement so that a portion of the implement extends through the wound and a portion extends out of the wound; providing a hemostatic material; positioning the hemostatic material about the implement; and advancing the hemostatic material over the surgical implement so that the hemostatic material is disposed adjacent the wound.
Claim 13
Dependent Claim
16 words
11 . The method of claim 10 additionally comprising providing an access passage to the wound.
Claim 14
Dependent Claim
21 words
12 . The method of claim 11 , wherein the access passage is provided by a plurality of elongate retractor arms.
Claim 15
Dependent Claim
21 words
13 . The method of claim 11 additionally comprising clearing a field surrounding the wound prior to positioning the hemostatic material.
Claim 16
Dependent Claim
31 words
14 . The method of claim 10 additionally comprising holding the hemostatic material in place on the wound as the material becomes at least partially soaked with blood from the wound.
Claim 17
Dependent Claim
15 words
15 . The method of claim 10 , wherein the surgical implement comprises a guidewire.
Claim 18
Dependent Claim
16 words
16 . The method of claim 10 , wherein the surgical implement comprises an elongate catheter.
Claim 19
Dependent Claim
19 words
17 . The method of claim 16 , wherein a tip of the catheter is extending through the wound.
Claim 20
Dependent Claim
25 words
18 . The method of claim 17 , wherein the catheter is removed from the wound after the hemostatic material is disposed adjacent the wound.
Claim 21
Dependent Claim
20 words
19 . The method of claim 10 , wherein the hemostatic material comprises a sponge-like material comprising a hemostatic agent.
Claim 22
Dependent Claim
26 words
20 . The method of claim 10 , wherein the hemostatic material is positioned on the surgical implement by poking the implement through the hemostatic material.
Claim 23
Dependent Claim
33 words
21 . The method of claim 20 , wherein the hemostatic material comprises a first layer and a second layer, the first layer being highly elastic, the second layer comprising a hemostasis agent.
Claim 24
Dependent Claim
15 words
22 . The method of claim 10 additionally comprising applying adhesive to the hemostatic material.
Claim 25
Dependent Claim
33 words
23 . The method of claim 10 additionally comprising providing a push member adapted to slide over the surgical implement and using the push member to advance the hemostatic material over the implement.
Claim 26
Dependent Claim
23 words
24 . The method of claim 23 , wherein the push member comprises a lumen, and the lumen substantially surrounds the surgical implement.
Claim 27
Dependent Claim
26 words
25 . The method of claim 24 additionally comprising advancing a second hemostatic material through the push member lumen into contact with the first hemostatic material.
Claim 28
Dependent Claim
23 words
26 . The method of claim 24 additionally comprising inserting flowable adhesive through the push member lumen into contact with the hemostatic material.
Claim 29
Dependent Claim
73 words
27 . An assembly for closing a blood vessel wound, the assembly comprising: an elongate catheter accommodating a guidewire threaded therethrough, the catheter configured to slide over the guidewire so that a tip of the catheter extends into a blood vessel wound; a hemostatic material comprising a hemostasis-facilitating agent; and a push member adapted to slide relative to the catheter, the push member having a lumen adapted to communicate a flowable adhesive therethrough.
Claim 30
Dependent Claim
73 words
27 . An assembly for closing a blood vessel wound, the assembly comprising: an elongate catheter accommodating a guidewire threaded therethrough, the catheter configured to slide over the guidewire so that a tip of the catheter extends into a blood vessel wound; a hemostatic material comprising a hemostasis-facilitating agent; and a push member adapted to slide relative to the catheter, the push member having a lumen adapted to communicate a flowable adhesive therethrough.
Claim 31
Dependent Claim
26 words
28 . The assembly of claim 27 additionally comprising a retractor having at least two retractor arms adapted to selectively open and close around the catheter.
Claim 32
Dependent Claim
17 words
29 . The assembly of claim 28 additionally comprising a rod slidable within the push member lumen.
Claim 33
Dependent Claim
36 words
30 . The assembly of claim 27 , wherein the catheter has a lumen connectable to a source of suction and has a hole formed through a wall thereof near a distal end of the lumen.
Claim 34
Dependent Claim
16 words
31 . The assembly of claim 30 , wherein the catheter comprises at least two lumens.
Claim 35
Dependent Claim
15 words
32 . The assembly of claim 30 , wherein the catheter comprises a single lumen.
Claim 36
Dependent Claim
61 words
33 . An assembly for closing a vascular wound, comprising: a surgical implement configured to extend at least partially through a vascular wound; a hemostatic material member comprising a hemostatic agent; and a push member configured to be longitudinally slidable relative to the surgical implement, the push member adapted to engage and push the hemostatic material longitudinally over the surgical implement.
Claim 37
Dependent Claim
61 words
33 . An assembly for closing a vascular wound, comprising: a surgical implement configured to extend at least partially through a vascular wound; a hemostatic material member comprising a hemostatic agent; and a push member configured to be longitudinally slidable relative to the surgical implement, the push member adapted to engage and push the hemostatic material longitudinally over the surgical implement.
Claim 38
Dependent Claim
22 words
34 . The assembly of claim 33 additionally comprising an access device configured to provide an access passage to the vascular wound.
Claim 39
Dependent Claim
15 words
35 . The assembly of claim 33 , wherein the surgical implement comprises a guidewire.
Claim 40
Dependent Claim
22 words
36 . The assembly of claim 35 , wherein the surgical implement comprises a catheter, the catheter being slidable over the guidewire.
Claim 41
Dependent Claim
42 words
37 . The assembly of claim 36 , wherein the hemostatic material member and the push member are mounted onto the catheter so as to slide longitudinally over the catheter, and the hemostatic material member is mounted distally of the push member.
Claim 42
Dependent Claim
31 words
38 . The assembly of claim 33 , wherein the push member comprises an elongate body and a proximal handle portion, and a longitudinal lumen is formed through the push member.
Claim 43
Dependent Claim
24 words
39 . The assembly of claim 38 additionally comprising an elongate release rod, the rod configured to slidably fit through the push member lumen.
Claim 44
Dependent Claim
31 words
40 . The assembly of claim 38 , wherein the push member body has a plurality of holes formed through a side wall thereof near a distal end of the body.
Claim 45
Dependent Claim
37 words
41 . The assembly of claim 33 , wherein the hemostatic material member comprises a first layer having relatively high elasticity and a second layer comprising a hemostasis agent, and the first and second layers are attached.
Claim 46
Dependent Claim
22 words
42 . The assembly of claim 41 , wherein the first and second layers are attached to each other by a cement.
Claim 47
Dependent Claim
17 words
43 . The assembly of claim 41 , wherein the first and second layers are integrally formed.
Claim 48
Dependent Claim
35 words
44 . The assembly of claim 41 , wherein the hemostatic material member is configured so that a puncture hole through the first and second layers is substantially sealingly closed by the elastic first layer.
Claim 49
Dependent Claim
23 words
45 . The assembly of claim 44 , wherein the surgical implement extends through a puncture hole through the first and second layers.
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