US4572186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel dilation
Assignee: Cordis Corp
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Filing: 1983-12-07
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Granted: 1986-02-25
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Expires: 2003-12-07
Abstract
Abstract A vessel dilation device is provided for use within the vascular system, such device including a braided cylinder that has an adjustable axial length and that is structured such that reduction of its adjustable axial length increases its radial size in order to effect a desired extent of dilation.
Inventors
- 👤 Sheldon D. Gould
- 👤 Gary T. Riggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:03
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61B; A61B17/00; A61B2017/00535; A61B2017/00539; A61B17/22; A61B2017/22001; A61B90/00; A61B90/06; A61B90/39
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
127 words
A dilation catheter comprising: an elonaged shaft having a proximal end and a distal end; a mechanical dilation assembly near said distal end of the elongated shaft; said mechanical dilation assembly including a radially and axially extending cylindrical recess, said cylindrical recess having an adjustable axial length; a braided cylindrical member positioned generally within said cylindrical recess, said braided cylindrical member also having an adjustable axial length, said braided cylindrical member being structured such that elongation of its adjustable axial length decreases its radial size and such that reduction of its adjustable length increases its radial size; and actuation means for elongating and reducing said adjustable axial length of the braided cylindrical member, said acuation means having control means near said proximal end of the elongated shaft.
Claim 2
Dependent Claim
127 words
A dilation catheter comprising: an elonaged shaft having a proximal end and a distal end; a mechanical dilation assembly near said distal end of the elongated shaft; said mechanical dilation assembly including a radially and axially extending cylindrical recess, said cylindrical recess having an adjustable axial length; a braided cylindrical member positioned generally within said cylindrical recess, said braided cylindrical member also having an adjustable axial length, said braided cylindrical member being structured such that elongation of its adjustable axial length decreases its radial size and such that reduction of its adjustable length increases its radial size; and actuation means for elongating and reducing said adjustable axial length of the braided cylindrical member, said acuation means having control means near said proximal end of the elongated shaft.
Claim 3
Dependent Claim
13 words
The dilation catheter according to claim 1, wherein said braided cylinder is radiopaque.
Claim 4
Dependent Claim
31 words
The dilation catheter according to claim 1, wherein said mechanical dilation assembly comprises means for providing a radial dilation force over substantially the entire radial size of the braided cylindrical member.
Claim 5
Dependent Claim
17 words
The dilation catheter according to claim 1, further including an elastomeric sheath overlying said braided cylindrical member.
Claim 6
Dependent Claim
37 words
The dilation catheter according to claim 1, wherein said elongated shaft includes an inner tubular shaft and an outer tubular shaft, and wherein said control means effects movement of said tubular shafts with respect to each other.
Claim 7
Dependent Claim
61 words
The dilation catheter according to claim 1, wherein said elonaged shaft includes an inner tubular shaft and an outer tubular shaft slidably movable over said inner tubular shaft, said inner tubular shaft being operatively engaged with the distal end of said braided cylinder member, and said outer tubular shaft being operatively engaged with the proximal end of said braided cylindrical member.
Claim 8
Dependent Claim
59 words
The dilation catheter according to claim 1, wherein said elonaged shaft includes an inner tubular shaft and an outer tubular shaft slidably movable over said inner tubular shaft, said inner tubular shaft being operatively engaged with the distal end of said braided cylinder member, and said control means is for effecting the slidable movement of the outer tubular shaft.
Claim 9
Dependent Claim
24 words
The dilation catheter according to claim 1, wherein said control means includes a stop assembly for setting the actuation means at a desired position.
Claim 10
Dependent Claim
40 words
The dilation catheter according to claim 1, wherein said elongated shaft includes an inner tubular shaft and an outer tubular shaft, and wherein said cylindrical recess is located between the respective distal ends of said outer and inner tubular shafts.
Claim 11
Dependent Claim
41 words
The dilation catheter according to claim 1, wherein said actuation means includes an actuation wire having one end that is in operative engagement with said control means and having another end that is in operative engagement with said braided cylindrical member.
Claim 12
Dependent Claim
70 words
The dilation catheter according to claim 1, wherein said actuation means includes an actuation wire having one end that is in operative engagement with said control means and having another end that is in operative engagement with said braided cylindrical member, wherein said elongated shaft includes an inner and an outer tubular shaft, and wherein said actuation wire is located between said inner tubular shaft and said outer tubular shaft.
Claim 13
Dependent Claim
46 words
The dilation catheter according to claim 1, wherein said actuation means includes an actuation wire having one end that is in operative attachment with said control means and having an opposite end that is in operative attachment with the distal portion of said braided cylindrical member.
Claim 14
Dependent Claim
59 words
The dilation catheter according to claim 1, wherein said actuation means includes an actuation wire having one end that is in operative engagement with said control means and having another end that is in operative engagement with one of said braided cylindrical member, and the opposite end of said braided cylindrical member is secured in a generally stationary manner.
Claim 15
Dependent Claim
38 words
The dilation catheter according to claim 1, wherein said actuation means includes an actuation wire in operative communication with said control means and with said braided cylindrical member, and wherein said control means includes a slidable wire mount.
Claim 16
Dependent Claim
17 words
The dilation catheter according to claim 1, wherein said control means includes a series of calibration graduations.
Claim 17
Dependent Claim
26 words
The dilation catheter according to claim 1, wherein said actuation means includes a hydraulic fluid path generally between said control means and said braided cylindrical member.
Claim 18
Dependent Claim
50 words
The dilation catheter according to claim 1, wherein said actuation means includes a hydraulic fluid path generally between said control means and the proximal portion of said braided cylindrical member, and wherein the distal portion of said braided cylindrical member is secured to the catheter in a generally stationary manner.
Claim 19
Dependent Claim
41 words
The dilation catheter according to claim 1, wherein said elongated shaft includes an inner tubular member and an outer tubular member, and wherein said actuation means includes a hydraulic fluid path between said inner tubular member and said outer tubular member.
Claim 20
Independent Claim
77 words
A method for dilating a dilation section of a vascular catheter assembly, comprising: providing a mechanical dilation assembly near the distal end of an elongated vascular dilation catheter shaft, the mechanical dilation assembly including a braided cylindrical member; decreasing the axial length of the braided cylindrical member to thereby correspondingly increase its radial size to a desired dilation size; and said decreasing step including remote actuation from a location near the proximal end of the elongated shaft.
Claim 21
Independent Claim
77 words
A method for dilating a dilation section of a vascular catheter assembly, comprising: providing a mechanical dilation assembly near the distal end of an elongated vascular dilation catheter shaft, the mechanical dilation assembly including a braided cylindrical member; decreasing the axial length of the braided cylindrical member to thereby correspondingly increase its radial size to a desired dilation size; and said decreasing step including remote actuation from a location near the proximal end of the elongated shaft.
Claim 22
Dependent Claim
23 words
The method of claim 19, wherein said step of increasing the radial size of the braided cylindrical member includes imparting radial dilation forces.
Claim 23
Dependent Claim
36 words
The method of claim 19, wherein said step of increasing the radial size of the braided cylindrical member includes providing a dilating force that is effective over substantially the entire range of said increasing radial size.
Claim 24
Dependent Claim
24 words
The method of claim 19, wherein said decreasing step includes axially moving one tube of the catheter shaft with respect to another tube thereof.
Claim 25
Dependent Claim
17 words
The method of claim 19, wherein said decreasing step includes applying a pulling force to a wire.
Claim 26
Dependent Claim
12 words
The method of claim 19, wherein said decreasing step includes hydraulic actuation.
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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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |