US4809710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilumen manometer catheter
Assignee: Individual
•
Filing: 1988-01-11
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Granted: 1989-03-07
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Expires: 2008-01-11
Abstract
Abstract A catheter for making pressure measurements in a sphincter canal. The example illustrated is for an anal sphincter canal. It has an inflation tube and water-perfusion tubes or lumens in a unitary, elongated body. A balloon or cuff is inflatable through the inflation tube. The body has a section in which the water-perfusion tubes are helically wound about the inflation tube which is centrally located. The water-perfusion tubes have side openings communicating with the lumens therewithin. These side openings are positioned along a line parallel to the longitudinal axis. Examples are shown where these side openings are located in one, two or four quadrants of the catheter surface, at different axial levels.
Inventors
- 👤 Jeffrey L. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/03; A61B5/036; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0036; A61M2025/004
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
135 words
A multilumen manometric catheter comprising: an elongated body having a plurality of lumens extending along a longitudinal axis between proximal and distal ends of the body; pressure transducer coupling means for the lumens at the proximal end of the body; said body having a pressure-sensing section at the distal end portion in which the lumens are helically oriented about the longitudinal axis; each of the lumens in said pressure-sensing section having a pressure-sensing side opening extending through the surface of said body adapted to sense pressure of abutting body tissue at that opening; each of said lumens being closed distally of the side opening therein; said side openings including at least one group of openings in one quadrant that are positioned along a line parallel to said longitudinal axis at predetermined levels along said axis.
Claim 2
Dependent Claim
135 words
A multilumen manometric catheter comprising: an elongated body having a plurality of lumens extending along a longitudinal axis between proximal and distal ends of the body; pressure transducer coupling means for the lumens at the proximal end of the body; said body having a pressure-sensing section at the distal end portion in which the lumens are helically oriented about the longitudinal axis; each of the lumens in said pressure-sensing section having a pressure-sensing side opening extending through the surface of said body adapted to sense pressure of abutting body tissue at that opening; each of said lumens being closed distally of the side opening therein; said side openings including at least one group of openings in one quadrant that are positioned along a line parallel to said longitudinal axis at predetermined levels along said axis.
Claim 3
Dependent Claim
27 words
A multilumen manometric catheter according to claim 1 in which: all of said pressure-sensing side openings are positioned along a single line parallel to said longitudinal axis.
Claim 4
Dependent Claim
24 words
A multilumen manometric catheter according to claim 1 in which: said pressure-sensing side openings are positioned along different lines parallel to said longitudinal axis.
Claim 5
Dependent Claim
25 words
A multilumen manometric catheter according to claim 1 in which: said pressure-sensing side openings are positioned along diametrically opposite lines parallel to said longitudinal axis.
Claim 6
Dependent Claim
40 words
A multilumen manometric catheter according to claim 1 in which: said pressure-sensing side openings are positioned along four lines parallel to said longitudinal axis, said four lines being circumferentially spaced at substantially 90° apart about the surface of said body.
Claim 7
Dependent Claim
68 words
A multilumen manometric catheter according to claim 1 having: a rectal balloon surrounding the end of said body distally of said pressure-sensing section; and a separate lumen in said body having coupling means at the proximal end of the body for coupling to a pressure source and having an opening at the distal end of the body enabling flow of fluid between said separate lumen and said balloon.
Claim 8
Dependent Claim
38 words
A multilumen manometric catheter according to claim 6 in which the distal end of said body extends within said balloon and has a plurality of side openings communicating with said separate lumen to facilitate deflation of the balloon.
Claim 9
Dependent Claim
35 words
A multilumen manometric catheter according to claim 1 in which the body has a handle section located proximally of said pressure-sensing section, said handle section comprising an outer tubular member enclosing and supporting said body.
Claim 10
Dependent Claim
44 words
A multilumen manometric catheter according to claim 1 in which said body comprises a plurality of tubes, said lumens are the inner open spaces in said tubes, and said tubes are helically oriented about the longitudinal axis of the pressure-sensing section of said body.
Claim 11
Dependent Claim
33 words
A multilumen manometric catheter according to claim 9 in which the tubes in at least the pressure-sensing section are adhered to one another to fix the relative positions of said pressure-sensing side openings.
Claim 12
Dependent Claim
129 words
A multilumen manometric catheter comprising: an elongated body comprising a bundle of pressure-sensing tubes having proximal and distal ends extending along a longitudinal axis; said tubes having pressure transducer coupling means at the proximal ends of the tubes and the distal ends being closed; said body having a pressure-sensing section in which portions of the tubes are helically wound about said longitudinal axis at the surface of the body; each of the tubes in the pressure-sensing section having a side opening at the surface of said bundle for sensing pressure of abutting body tissue at that specific location; and said side openings including at least one group of openings in one quadrant that are positioned along a line parallel to said longitudinal axis at predetermined levels along said axis.
Claim 13
Dependent Claim
129 words
A multilumen manometric catheter comprising: an elongated body comprising a bundle of pressure-sensing tubes having proximal and distal ends extending along a longitudinal axis; said tubes having pressure transducer coupling means at the proximal ends of the tubes and the distal ends being closed; said body having a pressure-sensing section in which portions of the tubes are helically wound about said longitudinal axis at the surface of the body; each of the tubes in the pressure-sensing section having a side opening at the surface of said bundle for sensing pressure of abutting body tissue at that specific location; and said side openings including at least one group of openings in one quadrant that are positioned along a line parallel to said longitudinal axis at predetermined levels along said axis.
Claim 14
Dependent Claim
58 words
A multilumen manometric catheter according to claim 11 having: an inflatable cuff or balloon surrounding said body; a central tube having proximal and distal ends extending along said longitudinal axis, having coupling means at the proximal end for coupling to a fluid pressure source, and having an opening communicating with said cuff or balloon to control inflation thereof.
Claim 15
Dependent Claim
24 words
A multilumen manometric catheter according to claim 12 in which the helically wound tubes are wound about said central tube in the pressure-sensing section.
Claim 16
Dependent Claim
26 words
A multilumen catheter according to claim 12 in which said inflatable cuff or balloon is at the distal end of the body beyond said pressure-sensing section.
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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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |