US5601537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter system
Assignee: Olympus Endo Technology America Inc
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Filing: 1995-06-05
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Granted: 1997-02-11
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Expires: 2015-06-05
Abstract
Abstract Apparatus and methodology for applying catheters, dilators and occluders to mammalian genito-urinary and gastro-intestinal passages, using rotational manipulation of threaded or helically-formed catheters and threaded dilators and occluders. Threaded or helical catheters are inserted into the opening of the selected passage far enough to engage a thread segment, the other end of the catheter is then manually rotated to draw the catheter into the passage. Threaded dilators and occluders are similarly applied.
Inventors
- 👤 James J. Frassica
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61J; A61J15/00; A61J15/0026; A61J15/003; A61J15/0046; A61M25/0021; A61M25/10; A61M25/007
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
77 words
A catheter for catheterizing mammalian genito-urinary and gastro-intestinal passages, said catheter comprising a flexible catheter tube having a lower end and an upper end and a lumen communicating there between, said upper end of said tube configured with an external screw thread of uniform pitch, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter tube and a thread pitch not greater than the circumference of said thread.
Claim 2
Dependent Claim
77 words
A catheter for catheterizing mammalian genito-urinary and gastro-intestinal passages, said catheter comprising a flexible catheter tube having a lower end and an upper end and a lumen communicating there between, said upper end of said tube configured with an external screw thread of uniform pitch, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter tube and a thread pitch not greater than the circumference of said thread.
Claim 3
Dependent Claim
16 words
The catheter system of claim 1, said thread extending no more than six turns in length.
Claim 4
Dependent Claim
21 words
The catheter of claim 1, said thread height tapering at each end of said thread from full height to no height.
Claim 5
Dependent Claim
20 words
The catheter of claim 1, said lower end of said catheter tube being attachable to a means for flow control.
Claim 6
Dependent Claim
19 words
The catheter of claim 1, said catheter tube having a side port, said lumen communicating with said side port.
Claim 7
Dependent Claim
17 words
The catheter of claim 1, said catheter tube constructed of a composite of polymer and reinforcing fibers.
Claim 8
Dependent Claim
46 words
The catheter of claim 1, said catheter tube configured to accept insertion of a flexible shaft stylet through said lower end into said lumen, the tip of said stylet engagable in a non-rotational fitment secured in said lumen near said upper end of said catheter tube.
Claim 9
Independent Claim
132 words
A method for catheterizing a mammalian genito-urinary or gastro-intestinal passage comprising the steps of: utilizing a flexible catheter having an upper end and a lower end and a lumen communicating there between, said catheter configured with an external screw thread of uniform pitch at said upper end, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter and a thread pitch not greater than the circumference of said thread, introducing the tip of said catheter into an opening to said passage, aligning said tip with said passage, advancing said tip into said passage with a combination of rotational and forward pressure until said thread is engaged one turn into said passage, rotating said catheter thereby advancing said catheter into position within said passage.
Claim 10
Independent Claim
132 words
A method for catheterizing a mammalian genito-urinary or gastro-intestinal passage comprising the steps of: utilizing a flexible catheter having an upper end and a lower end and a lumen communicating there between, said catheter configured with an external screw thread of uniform pitch at said upper end, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter and a thread pitch not greater than the circumference of said thread, introducing the tip of said catheter into an opening to said passage, aligning said tip with said passage, advancing said tip into said passage with a combination of rotational and forward pressure until said thread is engaged one turn into said passage, rotating said catheter thereby advancing said catheter into position within said passage.
Claim 11
Dependent Claim
15 words
The method of claim 8, said thread extending no more than six turns in length.
Claim 12
Dependent Claim
45 words
The method of claim 9, said passage being the urethra of a male subject, said position being where said thread of said catheter is above the sphincter of said subject whereby said sphincter may contract around said catheter tube at a point below said thread.
Claim 13
Dependent Claim
20 words
The method of claim 10, said lower end of said catheter tube being attachable to a means for flow control.
Claim 14
Dependent Claim
21 words
The method of claim 8, said thread height tapering at each end of said thread from full height to no height.
Claim 15
Dependent Claim
29 words
The method of claim 8, said catheter tube having a side port and a lumen, said lumen communicating between said side port and said lower end of said tube.
Claim 16
Dependent Claim
17 words
The catheter of claim 8, said catheter tube constructed of a composite of polymer and reinforcing fibers.
Claim 17
Dependent Claim
94 words
The method of claim 8, said catheter tube configured to accept insertion of a flexible shaft stylet through said lower end into said lumen, the tip of said stylet engagable in a non-rotational fitment secured in said lumen near said upper end of said catheter tube, said rotating of said catheter preceeded by the following steps: inserting said stylet through said lower end of said catheter into said lumen, advancing said stylet through said lumen into engagement with said non-rotational fitment, said rotating of said catheter comprising rotating of said stylet while engaged therewith.
Claim 18
Dependent Claim
75 words
A catheter for catheterizing mammalian genito-urinary passages, said catheter comprising a flexible catheter tube having a lower end and an upper end and a lumen communicating there between, said upper end of said tube configured with an external screw thread of uniform pitch, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter tube and a thread pitch not greater than the circumference of said thread.
Claim 19
Dependent Claim
75 words
A catheter for catheterizing mammalian genito-urinary passages, said catheter comprising a flexible catheter tube having a lower end and an upper end and a lumen communicating there between, said upper end of said tube configured with an external screw thread of uniform pitch, said thread having a thread height of at least one fifth (1/5) of the outside diameter of said catheter tube and a thread pitch not greater than the circumference of said thread.
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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) | 2000-02-11 | 2000-08-12 | 2001-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-11 | 2004-08-12 | 2005-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-11 | 2008-08-12 | 2009-02-11 | $7700.00 | Window Closed / Lapsed |