US6146355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable catheter
Assignee: Myelotec Co Ltd
•
Filing: 1998-07-31
•
Granted: 2000-11-14
•
Expires: 2018-07-31
Abstract
Abstract A steerable catheter (310) having a handle, a manifold strain relief (314) securely mounted at a front distal end of the handle, a steering dial (316) rotatably mounted within the handle, the steering dial (316) comprises a steering dial left fastener (316L) and a steering dial right fastener (316R). A lumen extrusion shaft (318) is securely fastened at a rear distal end to the manifold strain relief (314). The lumen extrusion shaft (318) has at least one lumen extrusion shaft large lumen opening (318B) and at least one lumen extrusion shaft small lumen opening (318C) contained therein. A lumen extrusion tip (320) is securely fastened at a front distal end of the lumen extrusion shaft (318) by a lumen extrusion shaft connection (318A). A manifold (334) is securely fastened at a rear end of the manifold strain relief (314). At least one luer lock (324) is securely mounted at a rear distal end of the handle. A steering wire (328) securely fastened at a rear distal end to the steering dial (316). The steering wire (328) is slidably mounted within the manifold (334) and the manifold strain relief (314) and the lumen extrusion shaft (318). The steering wire (328) has a left steering wire (328L) securely fastened at a rear distal end to the steering dial left fastener (316L) and a right steering wire (328R) securely fastened at a rear distal end to the steering dial right fastener (316R). The steering wire (328) is slidably positioned within the at least one lumen extrusion shaft small lumen opening (318C). The steering wire (328) is securely affixed at a front end to the lumen extrusion shaft (318) by a lumen extrusion shaft small lumen attachment (318CA). The steering wire (328) terminates at a front distal end wire flat lumen extrusion tip which is securely mounted within the lumen extrusion tip (320). A catheter body lumen tubing (330) securely fastened at a rear distal end to the least one luer lock (324) and is securely fastened at a front distal end to the at least one lumen extrusion shaft large lumen opening (318B). A front end of the catheter body lumen tubing (330) is securely mounted within the manifold (334).
Inventors
- 👤 Robert C. Biggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0136; A61M25/0147; A61M2025/015; A61M25/0043; A61M25/0054
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
393 words
A steerable catheter comprising: (a) a handle having a first end comprising first and second ports for allowing passage of instruments therethrough, and a second end generally opposite said first end; (b) a steering dial rotatably mounted within said handle; (c) a catheter shaft extending from the second end of said handle, said catheter shaft comprising: (i) a first shaft segment having a first stiffness, said first shaft segment having a rear distal end coupled to said handle, and a front distal end opposite said rear distal end; (ii) a tip segment having a second stiffness less than said first stiffness, said tip segment having a first end fused to the front distal end of said first shaft segment, and a second end opposite said first end; (iii) an end segment fused to the second end of said tip segment, said end segment having a greater stiffness than said tip segment; (iv) a first steering wire lumen extending lengthwise through said first shaft segment, said tip segment, and at least a portion of said end segment; (v) a second steering wire lumen extending lengthwise through said first shaft segment, said tip segment, and at least a portion of said end segment, said second steering wire lumen extending generally parallel to and diametrically separated from said first steering wire lumen; and (vi) first and second instrument passage lumens extending lengthwise through said first shaft segment, said tip segment, and said end segment; (d) a steering wire having a first end coupled to a first point of said steering dial, a looped portion extending through said first steering wire lumen and said second steering wire lumen, and a second end coupled to a second point of said steering dial, wherein said looped portion comprises a coined portion adjacent said end segment and extending between said first and second instrument passage lumens, whereby rotation of said steering dial causes said tip segment of said catheter shaft to flex; (e) a manifold having first and second passages therethrough, said first passage communicating with said first instrument passage lumen, and said second passage communicating with said second instrument passage lumen; and (f) first and second tubing segments, said first tubing segment connecting said first port to said first passage of said manifold, and said second tubing segment connecting said second port to said second passage of said manifold.
Claim 2
Dependent Claim
393 words
A steerable catheter comprising: (a) a handle having a first end comprising first and second ports for allowing passage of instruments therethrough, and a second end generally opposite said first end; (b) a steering dial rotatably mounted within said handle; (c) a catheter shaft extending from the second end of said handle, said catheter shaft comprising: (i) a first shaft segment having a first stiffness, said first shaft segment having a rear distal end coupled to said handle, and a front distal end opposite said rear distal end; (ii) a tip segment having a second stiffness less than said first stiffness, said tip segment having a first end fused to the front distal end of said first shaft segment, and a second end opposite said first end; (iii) an end segment fused to the second end of said tip segment, said end segment having a greater stiffness than said tip segment; (iv) a first steering wire lumen extending lengthwise through said first shaft segment, said tip segment, and at least a portion of said end segment; (v) a second steering wire lumen extending lengthwise through said first shaft segment, said tip segment, and at least a portion of said end segment, said second steering wire lumen extending generally parallel to and diametrically separated from said first steering wire lumen; and (vi) first and second instrument passage lumens extending lengthwise through said first shaft segment, said tip segment, and said end segment; (d) a steering wire having a first end coupled to a first point of said steering dial, a looped portion extending through said first steering wire lumen and said second steering wire lumen, and a second end coupled to a second point of said steering dial, wherein said looped portion comprises a coined portion adjacent said end segment and extending between said first and second instrument passage lumens, whereby rotation of said steering dial causes said tip segment of said catheter shaft to flex; (e) a manifold having first and second passages therethrough, said first passage communicating with said first instrument passage lumen, and said second passage communicating with said second instrument passage lumen; and (f) first and second tubing segments, said first tubing segment connecting said first port to said first passage of said manifold, and said second tubing segment connecting said second port to said second passage of said manifold.
Claim 3
Dependent Claim
20 words
The steerable catheter of claim 1, wherein said first and second ports comprise valves for sealing around instruments inserted therethrough.
Claim 4
Dependent Claim
26 words
The steerable catheter of claim 1, wherein said first and second ports comprise flush ports for infusing fluid through said first and second instrument passage lumens.
Claim 5
Dependent Claim
114 words
A steerable catheter comprising: (a) a handle comprising a steering actuator; (b) a catheter shaft having a rear distal end coupled to said handle and a free end opposite said rear distal end, said catheter shaft further defining first and second steering wire lumens extending lengthwise therethrough; and (c) a loop of steering wire having a first end coupled to a first point of said steering actuator, a central portion extending through said first and second steering wire lumens, and a second end coupled to a second point of a steering actuator, wherein said central portion of said loop of steering wire comprises a coined portion adjacent said free end of said catheter shaft.
Claim 6
Dependent Claim
114 words
A steerable catheter comprising: (a) a handle comprising a steering actuator; (b) a catheter shaft having a rear distal end coupled to said handle and a free end opposite said rear distal end, said catheter shaft further defining first and second steering wire lumens extending lengthwise therethrough; and (c) a loop of steering wire having a first end coupled to a first point of said steering actuator, a central portion extending through said first and second steering wire lumens, and a second end coupled to a second point of a steering actuator, wherein said central portion of said loop of steering wire comprises a coined portion adjacent said free end of said catheter shaft.
Claim 7
Dependent Claim
35 words
The catheter of claim 4, wherein said catheter shaft further defines first and second instrument passage lumens, and wherein said coined portion of said steering wire extends between said first and second instrument passage lumens.
References Cited (Backward Citations)
US3470876A
Cited
US3397840A
Cited
US3595220A
Cited
US3605725A
Cited
US3525561A
Cited
US3892228A
Cited
US4214593A
Cited
US4349014A
Cited
US4483326A
Cited
US4545374A
Cited
US4752292A
Cited
US4558691A
Cited
US4508103A
Cited
US4573448A
Cited
US4601284A
Cited
US4720178A
Cited
US4737142A
Cited
US4799474A
Cited
US4776844A
Cited
WO1988000810A1
Cited
US5244467A
Cited
US4796615A
Cited
US4905666A
Cited
US4986262A
Cited
US4808157A
Cited
US4919653A
Cited
US4965319A
Cited
EP0343094A2
Cited
US4904237A
Cited
US5085631A
Cited
US5053046A
Cited
US4902129A
Cited
US4968298A
Cited
EP0370158A1
Cited
US4985022A
Cited
US5372587A
Cited
US5308324A
Cited
US5108364A
Cited
US5289831A
Cited
US4930521A
Cited
US5131382A
Cited
US4996974A
Cited
US4973312A
Cited
US4934340A
Cited
US5215105A
Cited
US5232442A
Cited
US5084043A
Cited
US4983165A
Cited
WO1991011213A1
Cited
US5226879A
Cited
US5556381A
Cited
US5167221A
Cited
US5143475A
Cited
US5218970A
Cited
US5199950A
Cited
US5198301A
Cited
US5256158A
Cited
US5188594A
Cited
US5516847A
Cited
US5168864A
Cited
US5195541A
Cited
US5298571A
Cited
US5396880A
Cited
USD343678S
Cited
US5342299A
Cited
US5354266A
Cited
US5496269A
Cited
US5531687A
Cited
US5423311A
Cited
WO1994001162A2
Cited
US5437636A
Cited
US5284489A
Cited
USD349340S
Cited
US5399164A
Cited
US5542924A
Cited
US5456664A
Cited
US5507725A
Cited
US5399165A
Cited
US5419312A
Cited
US5545149A
Cited
US5431168A
Cited
US5454794A
Cited
US5492530A
Cited
US5569221A
Cited
WO1996008993A1
Cited
US5526820A
Cited
US5507732A
Cited
US5779688A
Cited
US5549580A
Cited
US5662622A
Cited
US5857999A
Cited
US5658263A
Cited
WO1996040309A1
Cited
US5638819A
Cited
EP0815895A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-14 | 2004-05-15 | 2004-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-14 | 2008-05-15 | 2008-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-14 | 2012-05-15 | 2012-11-14 | $7700.00 | Window Closed / Lapsed |