US6258118B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable support device
Assignee: Israel Aircraft Industries Ltd
•
Filing: 1999-03-23
•
Granted: 2001-07-10
•
Expires: 2019-03-23
Abstract
Abstract System for opening and temporarily supporting a section of a generally tubular organ, the system comprising a dilation catheter, and an inflatable balloon, the dilation catheter includes an integrally connected shape memory catheter tip, the shape memory catheter tip, is made of a shape memory alloy, the balloon being inserted within said shape memory catheter tip, wherein the balloon is operative to inflate, thereby moving the shape memory catheter tip from a first shape into a second shape, and wherein the shape memory catheter tip changes from the second shape to the first shape when heated from a first temperature to a second temperature.
Inventors
- 👤 Abraham Baum
- 👤 Elisha Hoch
- 👤 Israel Schnitzer
- 👤 Lior Kacir
- 👤 Felix Rabinovich
- 👤 Ilia Rueben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/90; A61F2/92; A61F2/95; A61M25/0074; A61M25/0082; A61M25/10; A61M29/00; A61M29/02; A61F2210/00; A61F2210/0014; A61F2210/0023; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2230/0028; A61F2230/0034; A61F2250/00; A61F2250/0058; A61F2250/0059
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
130 words
System for opening and temporarily supporting a section of a generally tubular organ, the system comprising a dilation catheter, and an inflatable balloon, said dilation catheter including an integrally connected shape memory catheter tip, being made of a shape memory alloy, said balloon being inserted within said shape memory catheter tip, wherein said balloon is operative to inflate, thereby moving said shape memory catheter tip from a first shape into a second shape, wherein said shape memory catheter tip changes from said second shape to said first shape when heated from a first temperature to a second temperature, and said system further comprising guiding means having a guiding tip, wherein said guiding unit is located within said dilation catheter and said guiding tip extends beyond said shape memory catheter tip.
Claim 2
Dependent Claim
130 words
System for opening and temporarily supporting a section of a generally tubular organ, the system comprising a dilation catheter, and an inflatable balloon, said dilation catheter including an integrally connected shape memory catheter tip, being made of a shape memory alloy, said balloon being inserted within said shape memory catheter tip, wherein said balloon is operative to inflate, thereby moving said shape memory catheter tip from a first shape into a second shape, wherein said shape memory catheter tip changes from said second shape to said first shape when heated from a first temperature to a second temperature, and said system further comprising guiding means having a guiding tip, wherein said guiding unit is located within said dilation catheter and said guiding tip extends beyond said shape memory catheter tip.
Claim 3
Dependent Claim
23 words
The system according to claim 1 , wherein said shape memory catheter tip is generally hollow, thereby enabling flow of bodily fluid therethrough.
Claim 4
Dependent Claim
56 words
The system according to claim 1 , further comprising: an energy control unit, connected to said dilation catheter, for controlling the temperature of said shape memory catheter tip; and an energy transfer unit, connected between said shape memory catheter tip and said energy control unit, and generally located within said dilating catheter, for transferring energy therebetween.
Claim 5
Dependent Claim
18 words
The system according to claim 1 , wherein said shape memory catheter tip comprises a generally cylindrical coil.
Claim 6
Dependent Claim
40 words
The system according to claim 4 , wherein said first shape is generally the shape of a cylindrical coil having a first diameter and wherein said second shape is generally the shape of a cylindrical coil having a second diameter.
Claim 7
Dependent Claim
17 words
The system according to claim 4 , wherein said generally cylindrical coil has a solid cross section.
Claim 8
Dependent Claim
17 words
The system according to claim 4 , wherein said generally cylindrical coil has a hollow cross section.
Claim 9
Dependent Claim
42 words
The system according to claim 4 , wherein said generally cylindrical coil has a cross section, which is selected from the list consisting of: radial cross section; elliptical cross section; semi radial cross-section; semi elliptical cross section; and near rectangular cross section.
Claim 10
Dependent Claim
40 words
The system according to claim 3 , wherein said energy transfer unit comprises at least one conduit, and wherein said energy control unit comprises means for providing temperature-controlled fluid towards said shape memory catheter is via said energy transfer unit.
Claim 11
Dependent Claim
40 words
The system according to claim 9 , wherein one of said at least one conduit, is opened in the vicinity of said shape memory catheter tip, thereby releasing temperature controlled fluid in the vicinity of said shape memory catheter tip.
Claim 12
Dependent Claim
82 words
The system according to claim 9 , wherein said shape memory catheter tip comprises a generally cylindrical coil, having a hollow cross section, said generally cylindrical coil being connected to said at least one conduit at a first end, said generally cylindrical coil being open at a second end, said at least one conduit transfers temperature controlled fluid to said shape memory catheter tip, via said first end, said shape memory catheter tip releasing said temperature controlled fluid via said second end.
Claim 13
Dependent Claim
36 words
The system according to claim 10 , wherein said energy control unit is further connected electrically to said shape memory unit, thereby electrically heating said shape memory unit from said first temperature to said second temperature.
Claim 14
Dependent Claim
52 words
The system according to claim 3 , wherein said energy transfer unit comprises an electricity conducting unit, connected electrically to said shape memory catheter tip, and wherein said energy control unit comprises an electric power supply means, for electrically heating said shape memory unit from said first temperature to said second temperature.
Claim 15
Dependent Claim
29 words
The system according to claim 13 , wherein said first temperature is equal or below the temperature of the environment, in which said shape memory catheter tip is placed.
Claim 16
Dependent Claim
28 words
The system according to claim 1 , wherein said shape memory alloy is selected from the list consisting of: Ni—Ti; Ni—Ti—X; Cu—Ni—Al; Cu—Zn—Al; Fe—Mn—Si; Ni—Ti—Co; Ni—Cu—X; and Ni—Al.
Claim 17
Dependent Claim
23 words
The system according to claim 1 , wherein said first temperature is in the range of 5 degrees Celsius and 38 degrees Celsius.
Claim 18
Dependent Claim
23 words
The system according to claim 1 , wherein said first temperature is in the range of 20 degrees Celsius and 38 degrees Celsius.
Claim 19
Dependent Claim
23 words
The system according to claim 1 , wherein said second temperature is in the range of 36 degrees Celsius and 65 degrees Celsius.
Claim 20
Dependent Claim
23 words
The system according to claim 1 , wherein said second temperature is in the range of 36 degrees Celsius and 46 degrees Celsius.
Claim 21
Dependent Claim
67 words
The system according to claim 9 , wherein said shape memory catheter tip comprises a generally cylindrical hollow coil, having an inlet and an outlet, and wherein said energy transfer units comprises two conduits, wherein one of said conduits is connected to said inlet for introducing temperature controlled fluid thereto, and wherein the other of said conduits is connected to said outlet, for receiving said fluid therefrom.
Claim 22
Dependent Claim
24 words
The system according to claim 1 , wherein a front section of said shape memory catheter tip is shaped as a guiding front end.
Claim 23
Dependent Claim
17 words
The system according to claim 5 , wherein said first diameter is smaller than said second diameter.
Claim 24
Dependent Claim
17 words
The system according to claim 5 , wherein said first diameter is larger than said second diameter.
Claim 25
Dependent Claim
27 words
The system according to claim 2 , wherein said shape memory catheter tip enables flow of bodily fluid in a radial direction and in an axial direction.
Claim 26
Dependent Claim
17 words
The system according to claim 1 , wherein said at least one conduit comprises two concentric conduits.
Claim 27
Dependent Claim
140 words
In a system including for opening and temporarily supporting a section of a generally tubular organ, the system including a dilation catheter and an inflatable balloon, the dilation catheter including an integrally connected shape memory catheter tip, the shape memory catheter tip being made of a shape memory alloy, the balloon being inserted within the shape memory catheter tip, a method for operating the system comprising the steps of: inflating said balloon, thereby increasing a radial dimension of said shape memory catheter tip; deflating said balloon, thereby enabling flow of bodily fluids through said shape memory catheter tip; heating said shape memory catheter tip to a predetermined temperature, thereby moving said shape memory catheter tip to an Austenite state which decreases the radial dimension of said shape memory catheter tip, and removing said shape memory catheter tip from said section.
Claim 28
Dependent Claim
140 words
In a system including for opening and temporarily supporting a section of a generally tubular organ, the system including a dilation catheter and an inflatable balloon, the dilation catheter including an integrally connected shape memory catheter tip, the shape memory catheter tip being made of a shape memory alloy, the balloon being inserted within the shape memory catheter tip, a method for operating the system comprising the steps of: inflating said balloon, thereby increasing a radial dimension of said shape memory catheter tip; deflating said balloon, thereby enabling flow of bodily fluids through said shape memory catheter tip; heating said shape memory catheter tip to a predetermined temperature, thereby moving said shape memory catheter tip to an Austenite state which decreases the radial dimension of said shape memory catheter tip, and removing said shape memory catheter tip from said section.
Claim 29
Dependent Claim
30 words
The method according to claim 26 , further comprising the step of locating said shape memory catheter tip and said balloon in a selected area within a generally tubular organ.
Claim 30
Dependent Claim
27 words
The method according to claim 27 , further comprising the step of inserting said shape memory catheter tip and said balloon into the body of the patient.
References Cited (Backward Citations)
US4411655A
Cited
US5211183A
Cited
US5143085A
Cited
US5242451A
Cited
US4919133A
Cited
US4991602A
Cited
US5449372A
Cited
US5465717A
Cited
US5197978A
Cited
US5197978B1
Cited
US5147370A
Cited
US5354309A
Cited
US5433723A
Cited
US5540713A
Cited
US5372600A
Cited
US5405377A
Cited
US5370683A
Cited
US5540712A
Cited
US5354308A
Cited
US5503636A
Cited
US5523092A
Cited
US5618299A
Cited
US5716410A
Cited
US5456667A
Cited
US5562641A
Cited
US5441516A
Cited
US5667522A
Cited
US5725549A
Cited
US5554181A
Cited
US5617854A
Cited
US5545210A
Cited
US5573509A
Cited
US5690671A
Cited
US5674241A
Cited
US5601593A
Cited
US5624508A
Cited
US5676685A
Cited
US5741249A
Cited
US5976152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-07-09 | 2005-01-08 | 2005-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-07-09 | 2009-01-08 | 2009-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-07-09 | 2013-01-08 | 2013-07-10 | $7700.00 | Window Closed / Lapsed |