Patent US1808908A successfully refreshed from Google Patents.
Patent US5713867A successfully refreshed from Google Patents.
US5713867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Introducer system having kink resistant splittable sheath
Assignee: Medtronic Inc
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Filing: 1996-04-29
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Granted: 1998-02-03
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Expires: 2016-04-29
Abstract
Abstract An introducer system featuring a sheath which is kink resistant. Such a sheath thereby permits the sheath to be dramatically bent while still allowing a lead to be introduced therethrough. The kink resistance is provided by a composite construction of the sheath. In particular the sheath has at least one integral reinforcing fiber. In the preferred embodiment the reinforcing fibers are provided in a braided configuration. The sheath preferably is constructed to be readily split using a slitter in a longitudinal direction and thus permits the sheath to be removed from the venous system without having to withdrawn the sheath over an end of the pacemaker lead. In an alternate embodiment the sheath is scored, including the reinforcing fibers, to thereby permit the sheath to be longitudinally split apart and removed from the venous system without having to withdrawn the sheath over an end of the pacemaker lead.
Inventors
- 👤 Mary M. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:12
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M25/0668; A61M25/0017; A61M25/0043; A61M25/005
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
149 words
An introducer system for use with a catheter or lead comprising: a sheath having a first end and a second end, the sheath being compatible for insertion within a body, the first end configured to insert the sheath within the body with the second end extending out of the body, a pair of separable tabs mounted to the second end, the sheath having a central lumen configured to permit introduction of at least one lead or catheter therethrough the sheath having at least one reinforcing fiber; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; and a dilator having a first end and a second end, the first end of the dilator being tapered, the dilator configured to be disposed through the central tureen of the sheath.
Claim 2
Dependent Claim
149 words
An introducer system for use with a catheter or lead comprising: a sheath having a first end and a second end, the sheath being compatible for insertion within a body, the first end configured to insert the sheath within the body with the second end extending out of the body, a pair of separable tabs mounted to the second end, the sheath having a central lumen configured to permit introduction of at least one lead or catheter therethrough the sheath having at least one reinforcing fiber; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; and a dilator having a first end and a second end, the first end of the dilator being tapered, the dilator configured to be disposed through the central tureen of the sheath.
Claim 3
Dependent Claim
29 words
The introducer system of claim 1 wherein the means for permitting removal of the sheath comprises means for splitting the sheath away from the lead or catheter disposed therethrough.
Claim 4
Dependent Claim
30 words
The introducer system of claim 2 wherein the means for splitting the sheath comprises a weakened section extending longitudinally from the first end to the second end of the sheath.
Claim 5
Dependent Claim
14 words
The introducer system of claim 3 wherein the weakened section comprises a score line.
Claim 6
Dependent Claim
41 words
The introducer system of claim 3 wherein the weakened section comprises a section of material having the physical property of molecular orientation whereby a tear in the material runs readily only in a longitudinal direction along the length of the sheath.
Claim 7
Dependent Claim
64 words
The introducer system of claim 2 wherein the means for splitting the sheath comprise a first tab on a first side of the second end of the sheath, and a second tab on a second side of the second end of the sheath whereby, when the tabs are pulled apart, the sheath tears longitudinally separating the sheath from the lead or catheter disposed therethrough.
Claim 8
Dependent Claim
12 words
The introducer system of claim 1 wherein the sheath is a plastic.
Claim 9
Dependent Claim
13 words
The introducer system of claim 1 wherein the sheath is low density polyethylene.
Claim 10
Dependent Claim
15 words
The introducer system of claim 1 wherein the reinforcing fiber is circular in cross section.
Claim 11
Dependent Claim
15 words
The introducer system of claim 1 wherein the reinforcing fiber is rectangular in cross section.
Claim 12
Dependent Claim
31 words
The introducer system of claim 1 wherein the reinforcing fiber in cross section has a major dimension and a minor dimension, the major dimension parallel to the lumen of the sheath.
Claim 13
Dependent Claim
146 words
An introducer system for use with a catheter or lead comprising: a sheath having a first end and a second end, the sheath having a wall, the wall defining a central lumen through the sheath, the wall having a thickness, a pair of separable tabs mounted to the second end of the sheath, the central lumen configured to permit introduction of at least one lead or catheter therethrough, the sheath having at least one reinforcing fiber, the reinforcing fiber mounted within the wall; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; and a dilator having a first end and a second end, the first end of the dilator being tapered, the dilator configured to be disposed through the central lumen of the sheath.
Claim 14
Dependent Claim
146 words
An introducer system for use with a catheter or lead comprising: a sheath having a first end and a second end, the sheath having a wall, the wall defining a central lumen through the sheath, the wall having a thickness, a pair of separable tabs mounted to the second end of the sheath, the central lumen configured to permit introduction of at least one lead or catheter therethrough, the sheath having at least one reinforcing fiber, the reinforcing fiber mounted within the wall; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; and a dilator having a first end and a second end, the first end of the dilator being tapered, the dilator configured to be disposed through the central lumen of the sheath.
Claim 15
Dependent Claim
33 words
The introducer system of claim 12 wherein the the reinforcing fiber is mounted within the wall at a point between an exterior surface of the wall and a interior surface of the wall.
Claim 16
Dependent Claim
25 words
The introducer system of claim 13 wherein the point is equally between an exterior surface of the wall and a interior surface of the wall.
Claim 17
Dependent Claim
26 words
The introducer system of claim 12 wherein the reinforcing fiber is mounted within the wall at a point along the the interior surface of the wall.
Claim 18
Dependent Claim
29 words
The introducer system of claim 12 wherein the means for permitting removal of the sheath comprises means for splitting the sheath away from the lead or catheter disposed therethrough.
Claim 19
Dependent Claim
97 words
The introducer system of claim 12 wherein the means for splitting the sheath comprise a first tab on a first side of the second end of the sheath, and a second tab on a second side of the second end of the sheath, the reinforcing fiber is mounted within the wall at a point along the the interior surface of the wall, the wall and the reinforcing fiber have a score line whereby when the tabs are pulled apart, the sheath tears longitudinally separating the sheath from the lead or catheter disposed therethrough along the score line.
Claim 20
Dependent Claim
14 words
The introducer system of claim 12 in which the sheath is low density polyethylene.
Claim 21
Dependent Claim
125 words
An introducer kit comprising: a sheath having a first end and a second end, the first end having means for inserting the sheath within the body with the second end extending out of the body, the sheath configured to permit introduction of at least one lead or catheter therethrough, a pair of separable tabs mounted to the second end, the sheath having a central lumen configured to permit introduction of at least one lead or catheter therethrough the sheath having at least one reinforcing fiber; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; a percutaneous needle; a wire guide; and a dilator.
Claim 22
Dependent Claim
125 words
An introducer kit comprising: a sheath having a first end and a second end, the first end having means for inserting the sheath within the body with the second end extending out of the body, the sheath configured to permit introduction of at least one lead or catheter therethrough, a pair of separable tabs mounted to the second end, the sheath having a central lumen configured to permit introduction of at least one lead or catheter therethrough the sheath having at least one reinforcing fiber; means for permitting removal of the sheath from the lead or catheter disposed therethrough without requiring the sheath to be removed over an end of the lead or catheter disposed therethrough; a percutaneous needle; a wire guide; and a dilator.
Claim 23
Dependent Claim
64 words
The introducer system of claim 19 wherein the means for splitting the sheath comprise a first tab on a first side of the second end of the sheath, and a second tab on a second side of the second end of the sheath, whereby when the tabs are pulled apart, the sheath tears longitudinally separating the sheath from the lead or catheter disposed therethrough.
Claim 24
Dependent Claim
14 words
The introducer system of claim 20 wherein the weakened section comprises a score line.
Claim 25
Dependent Claim
41 words
The introducer system of claim 20 wherein the weakened section comprises a section of material having the physical property of molecular orientation whereby a tear in the material runs readily only in a longitudinal direction along the length of the sheath.
Claim 26
Dependent Claim
30 words
The introducer system of claim 19 wherein the means for splitting the sheath comprises a weakened section extending longitudinally from the first end to the second end of the sheath.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-02 | 2001-08-04 | 2002-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-02 | 2005-08-04 | 2006-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-02 | 2009-08-04 | 2010-02-03 | $7700.00 | Window Closed / Lapsed |