EP0482350A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Device for sealing puncture wounds
Assignee: Datascope Investment Corp
•
Filing: 1991-09-18
•
Granted: —
•
Expires: 2011-09-18
Abstract
Abstract The invention relates to a device for inserting hemostatic material through a tissue channel and against the outside wall of a blood vessel of a patient, wherein the blood vessel wall has a puncture therein adjacent the tissue channel. The device includes a charge of hemostatic material (57) and a hollow sheath (45) adapted to pass through the tissue channel, the sheath (45) having a cross sectional profile larger than the puncture. The device places the hemostatic material (57) in the hollow sheath (45) and advances the hemostatic material (57) through the sheath (45) to the outside of the vessel wall around the puncture. <IMAGE>
Inventors
- 👤 Ernst Dipl.-Ing. Janzen
- 👤 Günter Dipl.-Ing. Rüttgers
- 👤 Lawrence Saper
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B2017/00637; A61B2017/00646; A61B2017/00654
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
96 words
A device for inserting hemostatic material through a tissue channel and against the outside wall of a blood vessel of a patient wherein said blood vessel wall has a puncture therein adjacent said tissue channel, comprising (a) a charge of hemostatic material, (b) a hollow sheath adapted to pass through said tissue channel, said sheath having a cross sectional profile larger than said puncture, (c) means for placing said hemostatic material in said hollow sheath, and (d) means for advancing said hemostatic material through said sheath to the outside of said vessel wall around said puncture.
Claim 2
Dependent Claim
21 words
The device of claim 1 further comprising a tissue dilator, wherein said sheath is adapted to fit over said tissue dilator.
Claim 3
Dependent Claim
37 words
The device of claim 2 wherein said dilator is larger in cross section than said tissue channel and wherein said dilator is adapted to be inserted into said channel, thereby to increase the size of said channel.
Claim 4
Dependent Claim
16 words
The device of claim 2 wherein said dilator is larger in cross section than said puncture.
Claim 5
Independent Claim
175 words
A device for use in sealing a puncture in a wall of a blood vessel of a patient where said blood vessel is separated from the skin of the patient by a layer of tissue, where a tissue channel communicates between said puncture and the patient's skin and where a guide wire having proximal and distal ends extends at least from said puncture, through said channel, to the patient's skin, comprising (a) a tissue dilator having a front portion and a rear portion, (b) a dilator channel running through said dilator from said front portion to said rear portion, said dilator channel being adapted to receive therein and pass therethrough the proximal end of said guide wire, (c) an elongated hollow sheath having a distal end and a proximal end, said sheath being adapted to pass over said dilator, (d) hemostatic material, (e) means for inserting said hemostatic material into said sheath, (f) means for advancing said hemostatic material through said sheath, out of the distal end thereof against said vessel wall around said puncture.
Claim 6
Dependent Claim
22 words
The device of claim 2 or 5 wherein said dilator is also the means for advancing said hemostatic material through said sheath.
Claim 7
Dependent Claim
18 words
The device of claim 1 or 5 wherein said hemostatic material is made at least primarily of collagen.
Claim 8
Dependent Claim
23 words
The device of claim 1 or 5 wherein said charge of hemostatic material is in the form of a plug of loose fibers.
Claim 9
Dependent Claim
20 words
The device of claim 1 or 5 wherein said charge of hemostatic material is in the form of a sponge.
Claim 10
Dependent Claim
30 words
The device of claim 1 or 5 wherein the hemostatic material is in the form of a plug partially of loose fibers and partially of a more densely packed construction.
Claim 11
Dependent Claim
14 words
The device of claim 1 or 5 wherein said hemostatic material is densely packed.
Claim 12
Dependent Claim
31 words
The device of claim 1 or 5 wherein said hemostatic material is in the form of a plug partially of loose fibers and partially of a densely packed or sponge-like construction.
Claim 13
Dependent Claim
55 words
The device of claim 1 or 5 wherein the hemostatic material is in the form of a plug having a front end and a back end and wherein said front end is covered with a membrane of hemostatic material and wherein the remainder of said plug is in the form of a densely packed material.
Claim 14
Dependent Claim
23 words
The device of claim 13 wherein the remainder of said plug is in the form of a densely packed sponge of hemostatic material.
Claim 15
Dependent Claim
24 words
The device of claim 1 or 5 wherein said charge of hemostatic material is in the form of a balloon made of collagen membrane.
Claim 16
Dependent Claim
20 words
The device of claim 1 or 5 wherein said charge of hemostatic material is in the form of a liquid.
Claim 17
Dependent Claim
13 words
The device of claim 16 wherein said liquid is comprised of fibrin glue.
Claim 18
Dependent Claim
12 words
The device of claim 16 wherein said liquid is comprised of thrombin.
Claim 19
Dependent Claim
20 words
The device of claim 1 or 5 wherein said charge of hemostatic material is in the form of a paste.
Claim 20
Dependent Claim
13 words
The device of claim 19 wherein said paste is comprised of fibrin glue.
Claim 21
Dependent Claim
12 words
The device of claim 19 wherein said paste is comprised of thrombin.
Claim 22
Dependent Claim
23 words
The device of claim 5 further comprising a plug holder to retain therein said hemostatic material prior to its insertion into said sheath.
Claim 23
Dependent Claim
64 words
The device of claim 22 wherein said sheath has a lumen running therethrough from said proximal end to said distal end and wherein said hemostatic material is retained within a channel in said plug holder, further comprising means for aligning said sheath lumen with said plug holder channel whereby said hemostatic material can be fed from said plug holder channel into said sheath lumen.
Claim 24
Dependent Claim
47 words
The device of claim 22 wherein said sheath has a lumen running therethrough from said proximal end to said distal end, wherein said plug holder has a channel therein which communicates with said sheath lumen and wherein said hemostatic material is retained within said plug holder channel.
Claim 25
Dependent Claim
51 words
The device of claim 23 or 24 wherein said means for inserting said hemostatic material into said sheath is comprised of a plug pusher which is adapted to slide within said plug holder channel thereby to push said hemostatic material from within said plug holder into said lumen of said sheath.
Claim 26
Dependent Claim
32 words
The device of claim 23 or 24 wherein said means for advancing said hemostatic material through said sheath is comprised of a piston adapted to slide within said lumen of said sheath.
Claim 27
Dependent Claim
28 words
The device of claim 5 wherein said means for inserting said hemostatic material into said sheath is the same means as advances said hemostatic material through said sheath.
Claim 28
Independent Claim
145 words
A device for use in sealing a puncture in a wall of a blood vessel of a patient where said blood vessel is separated from the skin of the patient by a layer of tissue, where a tissue channel communicates between said puncture and the patient's skin and where a guide wire having proximal and distal ends extends at least from said puncture, through said tissue channel, to the patient's skin, comprising (a) a plug of resorbable hemostatic material having a channel passing therethrough, said plug channel being adapted to receive therein in sliding relation said guide wire, (b) means for passing said plug over said guide wire through said tissue channel to the outside of said wall of said blood vessel, (c) means for holding said plug against the wall of said blood vessel around said puncture until self sustaining hemostasis has been achieved.
Claim 29
Dependent Claim
26 words
The device of claim 28 further comprising a sheath having a lumen therethrough, wherein said lumen is adapted to receive therein and pass therethrough said plug.
Claim 30
Dependent Claim
19 words
The device of claim 28 wherein said plug is made primarily of collagen in the form of a sponge.
Claim 31
Dependent Claim
16 words
The device of claim 30 wherein said plug has a collagen membrane on one face thereof.
Claim 32
Independent Claim
97 words
A method for sealing a puncture in a wall of a blood vessel located beneath body tissue of a patient, which tissue intervenes between said vessel and the skin of said patient, comprising the steps of (a) establishing communication between said vessel puncture and the skin of said patient, by means of a tissue channel through said tissue, (b) inserting an hemostatic material through said tissue channel, (c) applying said hemostatic material to the outside of said wall of said vessel on substantially all sides of said vessel puncture until a self-sustaining hemostatic seal has been achieved.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.