US5863366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of a cannula for a medical device
Assignee: Edwards Lifesciences LLC
•
Filing: 1996-11-15
•
Granted: 1999-01-26
•
Expires: 2016-11-15
Abstract
Abstract An elongate member is coated with a coating, preferably by coextrusion, and the coated elongate member is wound in a helical manner around a mandrel. The coated elongate member preferably has a square cross-sectional shape so that adjacent portions of the coated elongate member engage one another when the coated elongate member is wound around the mandrel. The coated elongate member is then heated so that the coating on adjacent portions of the coated elongate member fuse together to form an integral strcucture. Another layer of material may be provided on the radially inner or outer wall of the coated elongate member.
Inventors
- 👤 David W. Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61M; A61M25/00; A61M25/0021; A61M25/0041; A61M25/0043; A61M25/005; A61M25/01; A61M25/0105; A61M25/0133; A61M25/02; A61M25/10; A61M25/1002; A61M25/1006; A61M25/1027; A61M25/1036; A61B17/34; A61B17/3417; A61B18/00; A61B2018/00053; A61B2018/00214; A61B2018/0022; A61B2018/00232; A61B2018/0025; A61B2018/00261; A61B90/00; A61B90/06; A61B2090/064; A61B90/30; A61B2090/306; A61M2025/0001; A61M2025/0002; A61M25/0045; A61M2025/0046; A61M2025/028; A61M2025/1043; A61M2025/1047; A61M2025/1052; A61M2210/00; A61M2210/12; A61M2210/127; A61M25/0009; A61M25/0012; A61M25/0054; A61M25/0155; A61M25/06; A61M25/0662
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
118 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; melting the material on the coated elongate member after the winding step so that the opposing sides fuse together to form a reinforced tube having a finite length; forming a medical device with the reinforced tube, the medical device having a wall thickness equal to or less than 0.018 inch; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 2
Independent Claim
118 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; melting the material on the coated elongate member after the winding step so that the opposing sides fuse together to form a reinforced tube having a finite length; forming a medical device with the reinforced tube, the medical device having a wall thickness equal to or less than 0.018 inch; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 3
Dependent Claim
37 words
The method of claim 1, further comprising the steps of: compressing the coated elongate member with a shrink tube after the winding step and before the melting step; and removing the shrink tube after the melting step.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein: the coating step is carried out by coextruding the material over the elongate member.
Claim 5
Dependent Claim
25 words
The method of claim 1, wherein: the coating step is carried out with the material being a substance selected from the group consisting of thermoplastics.
Claim 6
Dependent Claim
30 words
The method of claim 1, wherein: the coating step is carried out with the material being a material selected from the group consisting of polyurethane, polyether block amide and PVC.
Claim 7
Dependent Claim
22 words
The method of claim 1, further comprising the step of: dipping the coated elongate member in a solution after the winding step.
Claim 8
Dependent Claim
22 words
The method of claim 1, wherein: the coating step is carried out so that the coated elongate member has a polygonal-shaped cross-section.
Claim 9
Dependent Claim
20 words
The method of claim 7, wherein: the coextruding step is carried out so that the polygonal-shaped cross-section is a quadrangle.
Claim 10
Dependent Claim
26 words
The method of claim 1, wherein: the winding step is carried out so that the coated elongate member forms a structure having a circular cross-sectional shape.
Claim 11
Dependent Claim
20 words
The method of claim 1, wherein: the coating step is carried out with the elongate member being a metal wire.
Claim 12
Dependent Claim
18 words
The method of claim 1, wherein: the melting step is carried out by heating the coated elongate member.
Claim 13
Dependent Claim
31 words
The method of claim 1, further comprising the step of: positioning a layer on at least one of a radially inner and a radially outer side of the coated elongate member.
Claim 14
Dependent Claim
59 words
The method of claim 1, further comprising the step of: positioning a tube of material on a radially inner or a radially outer side of the coated elongate member before the melting step; the melting step being carried out so that the opposing sides fuse together and the material and the tube fuse together to form the reinforced tube.
Claim 15
Dependent Claim
24 words
The method of claim 1, wherein: the forming step is carried out with the medical device having a thickness of 0.014 to 0.017 inch.
Claim 16
Dependent Claim
28 words
The method of claim 1, wherein: the forming step is carried out with the medical device having a lumen having an inner diameter of at least 0.180 inch.
Claim 17
Dependent Claim
24 words
The method of claim 1, wherein: the forming step is carried out with the lumen having an inner diameter of at least 0.236 inch.
Claim 18
Dependent Claim
29 words
The method of claim 1, wherein: the winding step is carried out with adjacent portions of the coated elongate member having a centerline spacing of less than 0.022 inch.
Claim 19
Independent Claim
132 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; melting the material on the coated elongate member after the winding step so that the opposing sides fuse together to form a reinforced tube having a finite length; forming a medical device with the reinforced tube; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step; the winding step being carried out with the coated elongate member forming a structure having a circular cross-sectional shape having a radius which varies along the longitudinal axis.
Claim 20
Independent Claim
132 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; melting the material on the coated elongate member after the winding step so that the opposing sides fuse together to form a reinforced tube having a finite length; forming a medical device with the reinforced tube; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step; the winding step being carried out with the coated elongate member forming a structure having a circular cross-sectional shape having a radius which varies along the longitudinal axis.
Claim 21
Dependent Claim
26 words
The method of claim 18, wherein: the forming step is carried out with the medical device having a wall thickness of between 0.014 to 0.017 inch.
Claim 22
Dependent Claim
27 words
The method of claim 18, wherein: the forming step is carried out with the medical device having a wall thickness equal to or less than 0.018 inch.
Claim 23
Dependent Claim
28 words
The method of claim 20, wherein: the forming step is carried out with the medical device having a lumen with an inner diameter of at least 0.180 inch.
Claim 24
Independent Claim
143 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; positioning a tube on at least one of a radially inner and a radially outer side of the coated elongate member, the layer being a tube having a thickness equal to or less than 0.007 inch; melting the material and the tube so that the opposing sides fuse together and the material and the tube fuse together to form a reinforced tube having a finite length; and forming a medical device with the reinforced tube; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 25
Independent Claim
143 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; positioning a tube on at least one of a radially inner and a radially outer side of the coated elongate member, the layer being a tube having a thickness equal to or less than 0.007 inch; melting the material and the tube so that the opposing sides fuse together and the material and the tube fuse together to form a reinforced tube having a finite length; and forming a medical device with the reinforced tube; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 26
Dependent Claim
24 words
The method of claim 22, wherein: the positioning step is carried out with the thickness of the tube being between 0.001 and 0.003 inch.
Claim 27
Dependent Claim
27 words
The method of claim 22, wherein: the forming step is carried out with the medical device having a wall thickness equal to or less than 0.018 inch.
Claim 28
Dependent Claim
28 words
The method of claim 24, wherein: the forming step is carried out with the medical device having a lumen having an inner diameter of at least 0.180 inch.
Claim 29
Independent Claim
155 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; positioning a shrink tube over the coated elongate member after the winding step, the shrink tube applying a compressive force to the coated elongate member; melting the coated elongate member after the winding step so that the opposing sides fuse together and form a matrix around the elongate member to form a reinforced tube having a finite length; removing the shrink tube after the melting step; forming a medical device with the reinforced tube, the medical device having a wall thickness of between 0.014 and 0.017 inch; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 30
Independent Claim
155 words
A method comprising the steps of: coating an elongate member with a material thereby forming a coated elongate member, the coated elongate member having opposing sides; winding the coated elongate member so that the opposing sides are facing one another; positioning a shrink tube over the coated elongate member after the winding step, the shrink tube applying a compressive force to the coated elongate member; melting the coated elongate member after the winding step so that the opposing sides fuse together and form a matrix around the elongate member to form a reinforced tube having a finite length; removing the shrink tube after the melting step; forming a medical device with the reinforced tube, the medical device having a wall thickness of between 0.014 and 0.017 inch; inserting at least a portion of the reinforced tube into a patient; and performing a medical procedure on the patient with the medical device after the inserting step.
Claim 31
Dependent Claim
31 words
The method of claim 26, further comprising the step of: positioning a layer on at least one of a radially inner and a radially outer side of the coated elongate member.
Claim 32
Dependent Claim
31 words
The method of claim 26, wherein: the winding step is carried out with adjacent portions of the coated elongate member having a centerline spacing equal to or less than 0.022 inch.
Claim 33
Dependent Claim
28 words
The method of claim 26, wherein: the forming step is carried out with the medical device having a lumen having an inner diameter of at least 0.180 inch.
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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) | 2002-01-25 | 2002-07-27 | 2003-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-25 | 2006-07-27 | 2007-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-25 | 2010-07-27 | 2011-01-26 | $7700.00 | Window Closed / Lapsed |