US7052500B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embolus extractor
Assignee: Stryker European Operations Holdings LLC
•
Filing: 2001-10-19
•
Granted: 2006-05-30
•
Expires: 2021-10-19
Abstract
Abstract An embolus extractor including elongate shaft having a proximal end and a distal end. The embolus extractor may include first and second struts coupled to the distal end of the shaft. The struts may define a proximally disposed mouth.
Inventors
- 👤 Mehran Bashiri
- 👤 Ajitkumar B. Nair
- 👤 Pete Phong Pham
- 👤 Mark Minh Phung
- 👤 Lilibeth S. Camins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
138 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft; and wherein the stuts can rotate about the elongate shaft.
Claim 2
Dependent Claim
138 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft; and wherein the stuts can rotate about the elongate shaft.
Claim 3
Dependent Claim
24 words
An embolus extractor in accordance with claim 1 , further comprising a sleeve slidably coupling the distal ends of the struts to the shaft.
Claim 4
Dependent Claim
24 words
An embolus extractor in accordance with claim 1 , further comprising a sleeve slidably coupling the proximal ends of the struts to the shaft.
Claim 5
Dependent Claim
25 words
An embolus extractor in accordance with claim 1 , wherein in the first position, the struts are disposed generally parallel to and adjacent the shaft.
Claim 6
Dependent Claim
25 words
An embolus extractor in accordance with claim 1 , wherein the struts extend generally distally from the mouth to define a generally distally tapering body.
Claim 7
Dependent Claim
38 words
An embolus extractor in accordance with claim 1 , wherein the proximal portion of the struts forming the mouth extend from the shaft at an angle of between 45° to 90° relative to the length of the shaft.
Claim 8
Dependent Claim
38 words
An embolus extractor in accordance with claim 6 , wherein the proximal portions of the struts forming the mouth extend from the shaft at an angle of between 60° to 90° relative to the length of the shaft.
Claim 9
Dependent Claim
38 words
An embolus extractor in accordance with claim 7 , wherein the proximal portions of the struts forming the mouth extend from the shaft at an angle of between 80° to 90° relative to the length of the shaft.
Claim 10
Dependent Claim
17 words
An embolus extractor in accordance with claim 1 , wherein the struts include a shape memory metal.
Claim 11
Dependent Claim
18 words
An embolus extractor in accordance with claim 9 , wherein the shape memory metal includes a NiTi alloy.
Claim 12
Dependent Claim
51 words
An embolus extractor in accordance with claim 1 , further comprising a third strut coupled to the shaft, the third strut having a transverse cross sectional area; wherein the first and second struts each have a transverse cross sectional area greater than the transverse cross sectional area of the third strut.
Claim 13
Dependent Claim
21 words
The embolus extractor in accordance with claim 1 , wherein the first and second struts can move independently of each other.
Claim 14
Dependent Claim
22 words
The embolus extractor in accordance with claim 1 , wherein the struts can translate at least in part along the elongate shaft.
Claim 15
Dependent Claim
18 words
The embolus extractor in accordance with claim 1 , wherein at least one strut includes a radiopaque material.
Claim 16
Dependent Claim
24 words
An embolus extractor in accordance with claim 16 , wherein in the first position, the first strut is disposed generally parallel to the shaft.
Claim 17
Dependent Claim
165 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; a first strut having a proximal end and a distal end, the proximal end and the distal end of the strut being coupled to the shaft, the strut having a first position and a second position; wherein in the first position, the distal end and the proximal end of the first strut are spaced at a first distance, and in the second position, the distal end and the proximal end of the first strut are spaced at a second distance being less than the first distance, and wherein in the second position, a proximal length of the first strut defines an open, generally circular mouth that is eccentric with respect to the shaft; and a second strut coupled to the shaft, the second strut having a transverse cross sectional area; wherein the first strut has a transverse cross sectional area greater than the cross sectional area of the second strut.
Claim 18
Dependent Claim
165 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; a first strut having a proximal end and a distal end, the proximal end and the distal end of the strut being coupled to the shaft, the strut having a first position and a second position; wherein in the first position, the distal end and the proximal end of the first strut are spaced at a first distance, and in the second position, the distal end and the proximal end of the first strut are spaced at a second distance being less than the first distance, and wherein in the second position, a proximal length of the first strut defines an open, generally circular mouth that is eccentric with respect to the shaft; and a second strut coupled to the shaft, the second strut having a transverse cross sectional area; wherein the first strut has a transverse cross sectional area greater than the cross sectional area of the second strut.
Claim 19
Dependent Claim
26 words
An embolus extractor in accordance with claim 16 , wherein the first strut extends generally distally from the mouth to define a generally distally tapering body.
Claim 20
Dependent Claim
39 words
An embolus extractor in accordance with claim 16 , wherein the proximal portion of the first strut forming the mouth extends from the shaft at an angle of between 45° and 90° relative to the length of the shaft.
Claim 21
Dependent Claim
39 words
An embolus extractor in accordance with claim 18 , wherein the proximal portion of the first strut forming the mouth, extends from the shaft at an angle of between 60° and 90° relative to the length of the shaft.
Claim 22
Dependent Claim
39 words
An embolus extractor in accordance with claim 19 , wherein the proximal portion of the first strut forming the mouth extends from the shaft at an angle of between 80° and 90° relative to the length of the shaft.
Claim 23
Dependent Claim
18 words
An embolus extractor in accordance with claim 16 , wherein the first strut includes a shape memory metal.
Claim 24
Dependent Claim
18 words
An embolus extractor in accordance with claim 21 , wherein the shape memory metal includes a NiTi alloy.
Claim 25
Dependent Claim
156 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; and a sleeve slidably coupling the proximal ends of the struts to the shaft such that the struts can translate at least in part along the elongate shaft; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft.
Claim 26
Dependent Claim
156 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; and a sleeve slidably coupling the proximal ends of the struts to the shaft such that the struts can translate at least in part along the elongate shaft; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft.
Claim 27
Dependent Claim
22 words
The embolus extractor of claim 23 , further comprising a sleeve slidably coupling the distal ends of the struts to the shaft.
Claim 28
Dependent Claim
156 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; and a sleeve slidably coupling the distal ends of the struts to the shaft such that the struts can translate at least in part along the elongate shaft; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft.
Claim 29
Dependent Claim
156 words
An embolus extractor, comprising: an elongate shaft having a proximal end and a distal end; first and second struts, each strut having a proximal end coupled to the shaft and a distal end coupled to the distal end of the shaft, the struts having a first position and a second position; and a sleeve slidably coupling the distal ends of the struts to the shaft such that the struts can translate at least in part along the elongate shaft; wherein in the first position, the distal ends and the proximal ends of the struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance, and wherein in the second position the proximal ends of the struts form an open, generally circular mouth that is eccentric with respect to the shaft.
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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) | 2009-05-29 | 2009-11-28 | 2010-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-05-29 | 2013-11-28 | 2014-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-05-29 | 2017-11-28 | 2018-05-30 | $7700.00 | Window Closed / Lapsed |