Patent US3624603A successfully refreshed from Google Patents.
US5876386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kink-free spiral-wound catheter
Assignee: Stryker European Operations Holdings LLC
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Filing: 1997-07-01
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Granted: 1999-03-02
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Expires: 2017-07-01
Abstract
Abstract This invention is a surgical device. In particular, it is a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is the use of stiffener ribbons, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness.
Inventors
- 👤 Gene Samson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:05
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/08; A61L29/04; A61L29/041; A61L29/049; A61L29/06; A61M; A61M25/00; A61M25/0043; A61M25/005; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; C08L23/12; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L27/12; C08L77/00; C08L79/00; C08L79/04; C08L79/08; C08L81/00; C08L81/06; A61M25/0053
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
150 words
A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining an inner lumen extending between those ends, said elongate tubular member having: a relatively stiff proximal segment comprising an inner proximal tubular liner in coaxial relationship with an outer tubular cover, and a first ribbon stiffener having a handedness and spirally and coaxially wound upon said inner proximal tubular liner and covered by said outer tubular cover; and a relatively flexible distal segment comprising an inner distal tubular liner in coaxial relationship with said outer tubular cover, and said first ribbon stiffener spirally and coaxially wound upon said inner distal tubular liner and covered by said outer tubular cover, the distal segment having a critical bend diameter of no more than 3.5 mm; said first ribbon stiffener having a pitch in the proximal segment different from a pitch in the distal segment.
Claim 2
Dependent Claim
150 words
A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining an inner lumen extending between those ends, said elongate tubular member having: a relatively stiff proximal segment comprising an inner proximal tubular liner in coaxial relationship with an outer tubular cover, and a first ribbon stiffener having a handedness and spirally and coaxially wound upon said inner proximal tubular liner and covered by said outer tubular cover; and a relatively flexible distal segment comprising an inner distal tubular liner in coaxial relationship with said outer tubular cover, and said first ribbon stiffener spirally and coaxially wound upon said inner distal tubular liner and covered by said outer tubular cover, the distal segment having a critical bend diameter of no more than 3.5 mm; said first ribbon stiffener having a pitch in the proximal segment different from a pitch in the distal segment.
Claim 3
Dependent Claim
32 words
The catheter of claim 1 wherein the first ribbon stiffener comprises a metallic ribbon having a thickness between 0.75 mil and 2.5 mil and a width between 2.5 mil and 8.0 mil.
Claim 4
Dependent Claim
27 words
The catheter of claim 2 wherein the first ribbon stiffener comprises a ribbon having a thickness of about 1.0 mil and a width of about 3.0 mil.
Claim 5
Dependent Claim
15 words
The catheter of claim 1 wherein the outer tubular cover comprises shrink wrap FEP-vinylidene fluoride.
Claim 6
Dependent Claim
20 words
The catheter of claim 1 wherein the outer tubular cover is radiation sterilizable without substantial degradation of its physical attributes.
Claim 7
Dependent Claim
14 words
The catheter of claim 1 wherein the inner distal tubular liner comprises FEP-vinylidene fluoride.
Claim 8
Dependent Claim
17 words
The catheter of claim 1 wherein the distal segment has a lateral flexibility of greater than 6500°/in-lb.
Claim 9
Dependent Claim
33 words
The catheter of claim 1 wherein the proximal segment further comprises a second ribbon stiffener of opposite handedness to said first ribbon stiffener and spirally and coaxially wound upon said first ribbon stiffener.
Claim 10
Dependent Claim
24 words
The catheter of claim 1 wherein the proximal segment further comprises a second ribbon stiffener having the same handedness as said first ribbon stiffener.
Claim 11
Dependent Claim
194 words
A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining an inner lumen extending between those ends, said elongate tubular member having: a relatively stiff proximal segment comprising an inner proximal tubular liner in coaxial relationship with an outer proximal tubular cover, and a first ribbon stiffener spirally and coaxially wound upon said inner proximal tubular liner and covered by said outer proximal tubular cover; a relatively flexible distal segment comprising an inner distal tubular liner in coaxial relationship with an outer distal tubular cover, and said first ribbon stiffener spirally and coaxially wound upon said inner distal tubular liner and covered by said outer distal tubular cover, the distal segment having a critical bend diameter of no more than 3.5 mm; and an intermediate segment defining a passageway between the relatively stiff proximal segment and the relatively flexible distal segment, said intermediate segment comprising an extension of said inner proximal tubular liner in coaxial relationship with an extension of said outer distal tubular cover, and said first ribbon stiffener spirally and coaxially wound between said inner proximal tubular liner and said outer distal tubular cover.
Claim 12
Dependent Claim
194 words
A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining an inner lumen extending between those ends, said elongate tubular member having: a relatively stiff proximal segment comprising an inner proximal tubular liner in coaxial relationship with an outer proximal tubular cover, and a first ribbon stiffener spirally and coaxially wound upon said inner proximal tubular liner and covered by said outer proximal tubular cover; a relatively flexible distal segment comprising an inner distal tubular liner in coaxial relationship with an outer distal tubular cover, and said first ribbon stiffener spirally and coaxially wound upon said inner distal tubular liner and covered by said outer distal tubular cover, the distal segment having a critical bend diameter of no more than 3.5 mm; and an intermediate segment defining a passageway between the relatively stiff proximal segment and the relatively flexible distal segment, said intermediate segment comprising an extension of said inner proximal tubular liner in coaxial relationship with an extension of said outer distal tubular cover, and said first ribbon stiffener spirally and coaxially wound between said inner proximal tubular liner and said outer distal tubular cover.
Claim 13
Dependent Claim
20 words
The catheter of claim 10 further comprising a second ribbon stiffener spirally and coaxially wound about said first ribbon stiffener.
Claim 14
Dependent Claim
31 words
The catheter of claim 11 wherein the first ribbon stiffener comprises a metallic ribbon having a thickness between 0.75 mil and 2.5 mil and a width between 2.5 and 8.0 mil.
Claim 15
Dependent Claim
27 words
The catheter of claim 12 wherein the first ribbon stiffener comprises a ribbon having a thickness of about 1.0 mil and a width of about 3.0 mil.
Claim 16
Dependent Claim
31 words
The catheter of claim 12 wherein the second ribbon stiffener comprises a metallic ribbon having a thickness between 0.75 mil and 2.5 mil and a width between 2.5 and 8.0 mil.
Claim 17
Dependent Claim
27 words
The catheter of claim 14 wherein the first ribbon stiffener comprises a ribbon having a thickness of about 1.0 mil and a width of about 3.0 mil.
References Cited (Backward Citations)
US5454795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |