US5860963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guiding catheter
Assignee: Boston Scientific Scimed Inc
•
Filing: 1996-11-19
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Granted: 1999-01-19
•
Expires: 2016-11-19
Abstract
Abstract A catheter is disclosed having a proximal shaft formed from an inner liner formed from a copolymer of polyvinylidene fluoride and hexafluoropropylene, an outer jacket formed from a blend of nylon and polyether block amide or polyether block amide alone, and a soft flexible tip affixed to the distal end of the proximal shaft formed from polyether block amide. A stem may be located between the proximal shaft and the soft flexible tip. The stem has an outer jacket formed from a proximal stem transition sleeve with a tapered distal end and a distal stem sleeve with a complementary tapered proximal end connected to the tapered distal end of the proximal stem transition sleeve. The stem transition sleeve and the stem sleeve are both formed from polyether block amide alone or a blend of polyether block amide and nylon. The outer jacket may be the same hardness as or harder than the stem transition sleeve which in turn is harder than the stem sleeve and the soft flexible tip. An intermediate wire mesh braid extends through the proximal shaft and, if desired, through the stem.
Inventors
- 👤 Nusayr Azam
- 👤 John B. Logan
- 👤 Brad J. Wessman
- 👤 William R. Priedeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/081; A61L29/00; A61L29/04; A61L29/049; A61L29/08; A61L29/085; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61M25/0067; A61M25/0068; A61M25/0069; A61M25/008; A61M2025/0081; A61M2025/0098; A61M25/0009; A61M25/001; A61M25/005; A61M25/0053
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
93 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with an exposed innermost liner formed from a material consisting essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 2
Dependent Claim
93 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with an exposed innermost liner formed from a material consisting essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 3
Dependent Claim
22 words
The catheter of claim 1 wherein the material forming the outer jacket is harder than the material forming the soft flexible tip.
Claim 4
Dependent Claim
48 words
The catheter of claim 2 wherein the material forming the outer jacket has a hardness in the range of about 63 D to about 72 D and the material forming the soft flexible tip has a hardness in the range of about 25 D to about 40 D.
Claim 5
Dependent Claim
15 words
The catheter of claim 3 wherein the intermediate reinforcing layer is a wire mesh braid.
Claim 6
Dependent Claim
15 words
The catheter of claim 2 wherein the intermediate reinforcing layer is a wire mesh braid.
Claim 7
Dependent Claim
15 words
The catheter of claim 1 wherein the intermediate reinforcing layer is a wire mesh braid.
Claim 8
Dependent Claim
15 words
The catheter of claim 1 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 9
Dependent Claim
12 words
The catheter of claim 1 wherein the catheter is devoid of polytetrafluoroethylene.
Claim 10
Dependent Claim
74 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with an exposed innermost liner formed from a material consisting essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 11
Dependent Claim
74 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with an exposed innermost liner formed from a material consisting essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 12
Dependent Claim
25 words
The catheter of claim 9 wherein the inner liner has a thickness of between about 0.001 inches (0.0025 cm) and about 0.005 inches (0.0127 cm).
Claim 13
Dependent Claim
31 words
The catheter of claim 10 wherein the catheter further includes a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate tube.
Claim 14
Dependent Claim
31 words
The catheter of claim 9 wherein the catheter further includes a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate tube.
Claim 15
Dependent Claim
15 words
The catheter of claim 9 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 16
Dependent Claim
12 words
The catheter of claim 9 wherein the catheter is devoid of polytetrafluoroethylene.
Claim 17
Dependent Claim
92 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with an exposed innermost inner liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 18
Dependent Claim
92 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with an exposed innermost inner liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 19
Dependent Claim
48 words
The catheter of claim 15 wherein the material forming the outer jacket has a hardness in the range of about 63 D to about 72 D and the material forming the soft flexible tip has a hardness in the range of about 25 D to about 40 D.
Claim 20
Dependent Claim
15 words
The catheter of claim 15 wherein the intermediate reinforcing layer is a wire mesh braid.
Claim 21
Dependent Claim
19 words
The catheter of claim 15 wherein the inner liner consists essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene.
Claim 22
Dependent Claim
15 words
The catheter of claim 15 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 23
Dependent Claim
12 words
The catheter of claim 15 wherein the catheter is devoid of polytetrafluoroethylene.
Claim 24
Dependent Claim
72 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with an exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 25
Dependent Claim
72 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with an exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 26
Dependent Claim
25 words
The catheter of claim 21 wherein the inner liner has a thickness of between about 0.001 inches (0.0025 cm) and about 0.005 inches (0.0127 cm).
Claim 27
Dependent Claim
31 words
The catheter of claim 21 wherein the catheter further includes a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate tube.
Claim 28
Dependent Claim
19 words
The catheter of claim 21 wherein the inner liner consists essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene.
Claim 29
Dependent Claim
15 words
The catheter of claim 21 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 30
Dependent Claim
12 words
The catheter of claim 21 wherein the catheter is devoid of polytetrafluoroethylene.
Claim 31
Dependent Claim
93 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with a plasma etched exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer, and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 32
Dependent Claim
93 words
A catheter comprising: an elongate proximal tube having a proximal end and a distal end with a plasma etched exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene, an intermediate reinforcing layer, and an outer jacket formed from a material including a blend of nylon and polyether block amide or polyether block amide alone; and a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate proximal tube; wherein the catheter is stable upon exposure to gamma radiation.
Claim 33
Dependent Claim
48 words
The catheter of claim 27 wherein the material forming the outer jacket has a hardness in the range of about 63 D to about 72 D and the material forming the soft flexible tip has a hardness in the range of about 25 D to about 40 D.
Claim 34
Dependent Claim
15 words
The catheter of claim 27 wherein the intermediate reinforcing layer is a wire mesh braid.
Claim 35
Dependent Claim
19 words
The catheter of claim 27 wherein the inner liner consists essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene.
Claim 36
Dependent Claim
15 words
The catheter of claim 27 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 37
Dependent Claim
12 words
The catheter of claim 27 wherein the catheter is devoid of polytetrafluoroethylene.
Claim 38
Dependent Claim
74 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with a plasma etched exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 39
Dependent Claim
74 words
A catheter comprising: an elongate tube having a proximal end and a distal end defining an inner lumen and a wall with an annular cross section of a substantially uniform thickness between the distal end and the proximal end and with a plasma etched exposed innermost liner formed from a material including a copolymer of polyvinylidene fluoride and hexafluoropropylene and an outer polymeric jacket; wherein the catheter is stable upon exposure to gamma radiation.
Claim 40
Dependent Claim
25 words
The catheter of claim 33 wherein the inner liner has a thickness of between about 0.001 inches (0.0025 cm) and about 0.005 inches (0.0127 cm).
Claim 41
Dependent Claim
31 words
The catheter of claim 33 wherein the catheter further includes a soft flexible tip formed from a material including polyether block amide affixed to the distal end of the elongate tube.
Claim 42
Dependent Claim
19 words
The catheter of claim 33 wherein the inner liner consists essentially of a copolymer of polyvinylidene fluoride and hexafluoropropylene.
Claim 43
Dependent Claim
15 words
The catheter of claim 33 wherein the catheter is sterilized by exposure to gamma radiation.
Claim 44
Dependent Claim
12 words
The catheter of claim 33 wherein the catheter is devoid of polytetrafluoroethylene.
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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) | 2002-01-18 | 2002-07-20 | 2003-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-18 | 2006-07-20 | 2007-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-18 | 2010-07-20 | 2011-01-19 | $7700.00 | Window Closed / Lapsed |