US5569204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspiration catheter arrangement
Assignee: Boston Scientific Corp
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Filing: 1994-06-20
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Granted: 1996-10-29
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Expires: 2014-06-20
Abstract
Abstract An aspiration catheter arrangement for aspiration of thrombi and emboli from blood vessels has a central catheter (2) and an outside catheter (1) surrounding it coaxially. A guide wire (4) and a dilator (3) are provided for inserting the catheter arrangement into a vessel and for dilating same. A blood clot is removed by means of a vacuum applied to the central catheter (2). If the central catheter (2) becomes clogged by the blood clot during the aspiration procedure, the central catheter (2) can be extracted out of the outside catheter (1) and replaced by a new central catheter (2). This new central catheter (2) can be connected to the aspiration device and the process is then continued. Instead of inserting a new central catheter (2), the aspiration process can also be continued through the outside catheter (1) by connecting the latter to the aspiration device after removing the central catheter (2).
Inventors
- 👤 Bernhard M. Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M39/00; A61M39/02; A61M39/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
72 words
An aspiration device comprising: (a) an outer catheter comprising a substantially cylindrical tube having a distal end and a proximal end; and (b) an inner catheter slidably and removably configured at least partially within the outer catheter for removal from the proximal end of the outer catheter, the inner catheter comprising a substantially cylindrical tube having a distal end and a proximal end, the proximal end adapted for connection to suction means.
Claim 2
Dependent Claim
72 words
An aspiration device comprising: (a) an outer catheter comprising a substantially cylindrical tube having a distal end and a proximal end; and (b) an inner catheter slidably and removably configured at least partially within the outer catheter for removal from the proximal end of the outer catheter, the inner catheter comprising a substantially cylindrical tube having a distal end and a proximal end, the proximal end adapted for connection to suction means.
Claim 3
Dependent Claim
25 words
The aspiration device of claim 1 further comprising at least one hemostatic valve configured proximate the proximal ends of both the inner and outer catheters.
Claim 4
Dependent Claim
19 words
The aspiration device of claim 2 wherein the hemostatic valves are removably attached to the inner and outer catheters.
Claim 5
Dependent Claim
21 words
The aspiration device of claim 1 further comprising at least one additional catheter configured at least partially about the outer catheter.
Claim 6
Dependent Claim
15 words
The aspiration device of claim 1, wherein at least one of the catheters comprises polytetrafluoroethylene.
Claim 7
Dependent Claim
19 words
The aspiration device of claim 1 further comprising an angled tip configured on the distal end of the device.
Claim 8
Dependent Claim
19 words
The aspiration device of claim 1 further comprising suction means connected to the proximal end of the inner catheter.
Claim 9
Dependent Claim
17 words
The aspiration device of claim 1 wherein the outer catheter is adapted for connection to suction means.
Claim 10
Dependent Claim
81 words
An aspiration assembly comprising: (a) an outer catheter comprising a substantially cylindrical tube having a distal end and a proximal end; and (b) at least two interchangeable inner catheters, the at least two inner catheters adapted for slidable and removable insertion into the outer catheter for removal from the proximal end of the outer catheter, and each inner catheter comprising a substantially cylindrical tube having a distal end and a proximal end, the proximal end adapted for connection to suction means.
Claim 11
Dependent Claim
81 words
An aspiration assembly comprising: (a) an outer catheter comprising a substantially cylindrical tube having a distal end and a proximal end; and (b) at least two interchangeable inner catheters, the at least two inner catheters adapted for slidable and removable insertion into the outer catheter for removal from the proximal end of the outer catheter, and each inner catheter comprising a substantially cylindrical tube having a distal end and a proximal end, the proximal end adapted for connection to suction means.
Claim 12
Dependent Claim
25 words
The aspiration assembly of claim 9 further comprising at least one hemostatic valve configured proximate the proximal ends of both the inner and outer catheters.
Claim 13
Dependent Claim
19 words
The aspiration assembly of claim 10 wherein the hemostatic valves are removably attached to the inner and outer catheters.
Claim 14
Dependent Claim
21 words
The aspiration assembly of claim 9 further comprising at least one additional catheter configured at least partially about the outer catheter.
Claim 15
Dependent Claim
15 words
The aspiration assembly of claim 9, wherein at least one of the catheters comprises polytetrafluoroethylene.
Claim 16
Dependent Claim
19 words
The aspiration assembly of claim 9 further comprising an angled tip configured on the distal end of the device.
Claim 17
Dependent Claim
19 words
The aspiration assembly of claim 9 further comprising suction means connected to the proximal end of the inner catheter.
Claim 18
Dependent Claim
17 words
The aspiration assembly of claim 9 wherein the outer catheter is adapted for connection to suction means.
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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) | 1999-10-29 | 2000-04-29 | 2000-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-29 | 2004-04-29 | 2004-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-29 | 2008-04-29 | 2008-10-29 | $7700.00 | Window Closed / Lapsed |