WO1996039075A1 - Device for measuring the weakness of a body lumen - Google Patents
Device for measuring the weakness of a body lumen Download PDFInfo
- Publication number
- WO1996039075A1 WO1996039075A1 PCT/US1996/007739 US9607739W WO9639075A1 WO 1996039075 A1 WO1996039075 A1 WO 1996039075A1 US 9607739 W US9607739 W US 9607739W WO 9639075 A1 WO9639075 A1 WO 9639075A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- distal end
- retracting cable
- hollow fluted
- weakness
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 25
- 210000005070 sphincter Anatomy 0.000 claims abstract description 25
- 230000003213 activating effect Effects 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000001954 sterilising effect Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000002405 diagnostic procedure Methods 0.000 description 4
- 210000003708 urethra Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 206010046543 Urinary incontinence Diseases 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
- A61B5/205—Determining bladder or urethral pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
- A61B5/224—Measuring muscular strength
- A61B5/227—Measuring muscular strength of constricting muscles, i.e. sphincters
Definitions
- a catheter with a hollow fluted distal end can be inserted into a lumen.
- the hollow fluted distal end of the catheter can be expanded into an enlarged configuration.
- the measurement of resistance to withdrawal of the catheter in the enlarged configuration can provide an indication of weakness of the lumen.
- the catheter is inserted into a bladder via the urethral sphincter and the weakness of the urethral sphincter is measured by withdrawing the catheter in the enlarged configuration.
- diagnostic methods are disclosed in which a retracting cable is disposed inside the catheter and simultaneously inserted into the bladder or other body lumen with the catheter such that a plunger at the distal end of the cable extends beyond the hollow fluted distal end of the catheter.
- the retracting cable can then be activated by pulling the plunger at the distal end of the cable back into the hollow end of the catheter.
- a plurality of wings disposed at the catheter's distal end will be forced into an expanded configuration.
- the activation of the cable can be restricted to a pre ⁇ determined extent by a set-screw disposed at the catheter's proximal end.
- a device for measuring weakness of a body lumen can consist of a catheter with a hollow fluted distal end carrying an array of wings, and an expanding means for radially expanding the wings into an enlarged configuration. Withdrawal of the catheter in the enlarged configuration encounters resistance that can be measured as an indication of the weakness of the body lumen, such as a urethral sphincter and similar valves.
- a system for measuring weakness of a body lumen can consist of a catheter, a means for expanding a hollow fluted distal end of the catheter from a first configuration into a second enlarged configuration and means for measuring resistance to withdrawal of the catheter in the enlarged configuration as an indicator of weakness of the body lumen, such as the urethral sphincter and similar valves.
- the system can include a retracting cable with a plunger distal end extending beyond the hollow fluted distal end of the catheter and an activating means for drawing the plunger distal end of the cable back into the distal end of the catheter such that a plurality of wings disposed at the hollow end of the catheter are expanded.
- FIGS. 2A through 2B illustrate an activation means for activating a retracting cable disposed inside of a catheter such that a plunger distal end of the retracting cable is drawn into and expands an array of wings disposed at a hollow fluted distal end of a catheter from a first configuration into an enlarged second configuration.
- FIGS. 2A through 2B also illustrate a set-screw for limiting the extent of this activation.
- FIGS. 3 A through 3D show enlarged frontal views of wings of a hollow fluted distal end of a catheter being expanded from a first configuration into three different enlarged second configurations.
- FIGS. 3E through 3H show corresponding enlarged side views of these wings being expanded from a first configuration into three different enlarged second configurations.
- FIG. 4A illustrates a withdrawal means for withdrawing a catheter from a body lumen with a cable at a pre-determined rate.
- FIG. 4B illustrates a resistance monitor for measuring the resistance of withdrawal of a catheter from a body lumen as an indication of the lumen weakness.
- FIG. 5 shows a sterilizable device of the present invention including a disposable plastic sheath surrounding the outside of the device.
- FIG. 7 illustrates a system for measuring the weakness of a body lumen consisting of a catheter with a hollow fluted distal end, a means for expanding the catheter's hollow fluted distal end from a first configuration into a second enlarged configuration, and a means for measuring resistance to withdrawal of the catheter in the enlarged second configuration as an indication of weakness of the body lumen.
- Figs. 2A through 2B illustrate that the device 10 can further include a means 26 for activating the retracting cable 22 such that the plunger distal end 24 of the retracting cable 22 is drawn into and expands the array of wings 16 of the hollow fluted distal end 14 of the catheter 12 from a first configuration 28 into an enlarged second configuration 30.
- the device can include a screw 32 to open the proximal end 18 of the catheter to allow the activating means 26 to activate the retracting cable 22.
- the device can also include a set- screw or lock nut 34 disposed at the proximal end 18 of the catheter 12 for restricting the extent of the activation of the retracting cable 22 to a pre-determined extent.
- FIGS. 3A through 3D show enlarged frontal views of the wings 16 of the hollow fluted distal end 14 of the catheter 12 being expanded from a first configuration 28 into three different enlarged second configurations 30.
- Figs. 3E through 3H show corresponding enlarged side views of the wings 16 of the hollow fluted end 14 of the catheter 12 being expanded from a first configuration 28 into three different enlarged second configurations 30.
- Figs. 3D and 3H show a maximum expansion of the wings 16 of about 30 french.
- the device 10 of the invention can include a withdrawal means 36 for withdrawing the catheter 12 from a body lumen with a cable 37 at a pre-determined rate, as shown by Fig. 4A.
- Fig. 4B illustrates that the device 10 of the present invention can also include a resistance monitor 38 for measuring the resistance to withdrawal of the catheter 12 from a body lumen as an indication of the weakness of the body lumen, e.g., by measuring the tension on cable 39.
- the device 10 can measure the weakness of a sphincter 42 in a urethra 44, as shown by Fig. 6.
- Fig. 6 illustrates the plunger distal end 24 of the retracting cable 22 drawn into and expanding the wings 16 of the hollow fluted distal end 14 of catheter 12 into an enlarged second configuration 30.
- Fig. 6 also shows that the device 10 can be equipped with a screw 32 at the proximal end of the catheter 12 to open up the catheter for the activating means 26 to draw the plunger distal end 24 of the retracting cable 22 into the wings 16 of the hollow fluted distal end 14 of the catheter 12.
- the device 10 can include a restriction means, such as a set-screw or lock nut 34 for restricting the extent of activation of the retracting cable 22.
- the device 10 can include a withdrawal device 36 for withdrawing the catheter 12 from the urethra 44 via cable 37 at a pre-determined rate and a resistance monitor 38 for measuring the resistance to withdrawal of the catheter 12 from the bladder 40 via cable 39 as an indication of the weakness of the urethral sphincter 42.
- a system 60 for measuring the weakness of a body lumen can include a catheter 12 with a hollow fluted distal end 14, a means 20 for expanding the catheter's hollow fluted distal end 14 from a first configuration into a second enlarged configuration, and a means 38 for measuring resistance to withdrawal of the catheter in the enlarged configuration as an indication of weakness of the body lumen, as shown by Fig. 7.
- Fig. 7 illustrates that the expanding means 20 of the system can include a retracting cable 22 disposed within the catheter 12 and extending beyond the proximal end 18 of the catheter 12, and a plunger distal end 24 of the retracting cable extending beyond the hollow fluted distal end 14 of the catheter.
- FIG. 7 shows the plunger distal end 24 of the retracting cable 22 drawn into and expanding radially disposed wings 16 on the hollow fluted distal end 14 of catheter 12 into an enlarged second configuration 30.
- Fig. 7 also shows that the system can be equipped with a screw 32 at the proximal end 18 of the catheter 12 to open up the catheter for the activating means 26 to draw the plunger distal end 24 of the retracting cable 22 into the wings 16 of the hollow fluted distal end 14 of the catheter 12.
- Fig. 7 further shows that the system 60 can include a set-screw or lock nut 34 for restricting the extent of activation of the retracting cable 22.
- the device 10 can include a withdrawal device 36 for withdrawing the catheter 12 from the body lumen via cable 37 at a pre-determined rate.
- the present invention benefits from the recognition that measuring the resistance to withdrawal of an expandable distal end of a catheter from a body lumen provides a simple and accurate test for diagnosing lumen weakness. Further, the devices and methods of the present invention have advantages over the traditional techniques for measuring the weakness of body lumens, and urethral sphincters and similar valves in particular. Traditional techniques may involve the use of electrodes and/or the measurement of pressure exerted on a fluid in a catheter. In contrast, the devices and methods of the present invention involve measuring the resistance to withdrawal of a hollow fluted distal end of a catheter expanded into an enlarged configuration. Thus, the devices and methods of the present invention are simple and accurate and avoid the complications and awkwardness involved with using electrodes and/or fluid filled catheters to measure lumen weakness.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96916652A EP0831739A1 (en) | 1995-06-06 | 1996-05-28 | Device for measuring the weakness of a body lumen |
JP9500737A JPH11511040A (en) | 1995-06-06 | 1996-05-28 | Urethral pressure catheter |
AU59334/96A AU710512B2 (en) | 1995-06-06 | 1996-05-28 | Device for measuring the weakness of a body lumen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/467,100 | 1995-06-06 | ||
US08/467,100 US5776081A (en) | 1995-06-06 | 1995-06-06 | Urethral pressure catheter |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996039075A1 true WO1996039075A1 (en) | 1996-12-12 |
Family
ID=23854351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/007739 WO1996039075A1 (en) | 1995-06-06 | 1996-05-28 | Device for measuring the weakness of a body lumen |
Country Status (8)
Country | Link |
---|---|
US (1) | US5776081A (en) |
EP (1) | EP0831739A1 (en) |
JP (1) | JPH11511040A (en) |
KR (1) | KR19990022305A (en) |
AU (1) | AU710512B2 (en) |
CA (1) | CA2220471A1 (en) |
WO (1) | WO1996039075A1 (en) |
ZA (1) | ZA964750B (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE514665C2 (en) * | 1998-08-13 | 2001-04-02 | Medscand Medical Ab | Method and apparatus for evaluating the status of pelvic floor muscles in a patient |
US6527702B2 (en) | 2000-02-01 | 2003-03-04 | Abbeymoor Medical, Inc. | Urinary flow control device and method |
WO2002087412A2 (en) * | 2000-08-07 | 2002-11-07 | Abbeymoor Medical, Inc. | Endourethral device & method |
WO2002017990A2 (en) * | 2000-08-31 | 2002-03-07 | Abbeymoor Medical, Inc. | Diagnostic urethral assembly & method |
US20050010235A1 (en) * | 2003-07-09 | 2005-01-13 | Vandusseldorp Gregg A. | Surgical device |
SE517729C2 (en) * | 2000-11-24 | 2002-07-09 | Columbitech Ab | Method for maintaining communication between units belonging to different communication networks |
JP4025648B2 (en) * | 2001-01-23 | 2007-12-26 | アビームーア メディカル インコーポレイテッド | Device used in the urethra |
KR20020082979A (en) * | 2001-04-24 | 2002-11-01 | 이명철 | vagina contract pressure gauge |
US20030073951A1 (en) * | 2001-05-30 | 2003-04-17 | Morton Kevin B. | Disposable patient interface for intraductal fluid aspiration system |
US6866994B2 (en) | 2001-05-30 | 2005-03-15 | Neomatrix, Llc | Noninvasive intraductal fluid diagnostic screen |
DE60235757D1 (en) | 2001-06-22 | 2010-05-06 | Abbeymoor Medical Inc | URETHRA PROFILING DEVICE |
US6666828B2 (en) * | 2001-06-29 | 2003-12-23 | Medtronic, Inc. | Catheter system having disposable balloon |
ATE536198T1 (en) * | 2001-10-18 | 2011-12-15 | Abbeymoor Medical Inc | ENDOURETHRAL DEVICE |
JP4052504B2 (en) * | 2002-01-29 | 2008-02-27 | 学校法人日本大学 | Apparatus for measuring elasticity characteristics of living tissue |
CA2461992C (en) * | 2002-11-14 | 2010-03-30 | Tsukada Medical Research Co., Ltd. | Diagnosis catheter for interstitial cystitis |
CH697482B1 (en) * | 2004-10-07 | 2008-11-14 | Peter Schlumpf | Multifunctional catheter probe. |
JP5019969B2 (en) * | 2007-06-21 | 2012-09-05 | 株式会社塚田メディカル・リサーチ | Interstitial cystitis diagnostic catheter |
EP3099367A4 (en) * | 2014-01-31 | 2017-10-04 | The Regents of the University of Colorado, a body corporate | Ventricular catheter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1585065A (en) * | 1968-06-24 | 1970-01-09 | ||
GB2091559A (en) * | 1981-01-27 | 1982-08-04 | Bard Inc C R | Disc membrane catheter |
FR2580504A1 (en) * | 1985-04-22 | 1986-10-24 | Pieronne Alain | Filter for partial and at least temporary interruption of a vein and catheter carrying the filter |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480003A (en) * | 1967-02-03 | 1969-11-25 | Battelle Development Corp | Apparatus for measuring esophageal motility |
US4063548A (en) * | 1975-04-07 | 1977-12-20 | American Medical Systems, Inc. | Method and apparatus for micturition analysis |
US4136681A (en) * | 1976-02-17 | 1979-01-30 | American Home Products Corporation | Catheter for measuring intrauterine pressure |
US4191196A (en) * | 1976-06-15 | 1980-03-04 | American Medical Systems, Inc. | Profilometry method and apparatus |
SU603371A1 (en) * | 1976-11-23 | 1978-04-25 | Томский Ордена Октябрьской Революции И Трудового Красного Знамени Политехнический Институт Им.С.М.Кирова | Apparatus for measuring the contraction force of human tubular members |
US4192319A (en) * | 1977-09-30 | 1980-03-11 | Regents Of University Of California | Wick catheter pressure sensing probe and method of use |
US4216783A (en) * | 1978-03-09 | 1980-08-12 | Howard Kaiser | Pneumatic monitor for indicating strength of contractile muscles |
US4246909A (en) * | 1978-10-05 | 1981-01-27 | Illinois Tool Works Inc. | Disposable urethral catheter assembly |
NL7907774A (en) * | 1979-10-22 | 1981-04-24 | Arnoldus Theodorus Maria Van D | ARMED CERVIX DILATION AND RESISTANCE MEASUREMENT BALLOON. |
US4423740A (en) * | 1981-03-30 | 1984-01-03 | Howmedica, Inc. | Slit catheter method for measuring interstitial pressure |
US5431639A (en) * | 1993-08-12 | 1995-07-11 | Boston Scientific Corporation | Treating wounds caused by medical procedures |
US5617876A (en) * | 1994-09-19 | 1997-04-08 | Les Enterprises Laborie, Inc. | Apparatus for examining the functioning of body structures comprising smooth muscle walls |
-
1995
- 1995-06-06 US US08/467,100 patent/US5776081A/en not_active Expired - Fee Related
-
1996
- 1996-05-28 AU AU59334/96A patent/AU710512B2/en not_active Ceased
- 1996-05-28 WO PCT/US1996/007739 patent/WO1996039075A1/en not_active Application Discontinuation
- 1996-05-28 JP JP9500737A patent/JPH11511040A/en active Pending
- 1996-05-28 EP EP96916652A patent/EP0831739A1/en not_active Withdrawn
- 1996-05-28 CA CA002220471A patent/CA2220471A1/en not_active Abandoned
- 1996-05-28 KR KR1019970708784A patent/KR19990022305A/en not_active Application Discontinuation
- 1996-06-06 ZA ZA9604750A patent/ZA964750B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1585065A (en) * | 1968-06-24 | 1970-01-09 | ||
GB2091559A (en) * | 1981-01-27 | 1982-08-04 | Bard Inc C R | Disc membrane catheter |
FR2580504A1 (en) * | 1985-04-22 | 1986-10-24 | Pieronne Alain | Filter for partial and at least temporary interruption of a vein and catheter carrying the filter |
Also Published As
Publication number | Publication date |
---|---|
US5776081A (en) | 1998-07-07 |
KR19990022305A (en) | 1999-03-25 |
JPH11511040A (en) | 1999-09-28 |
AU5933496A (en) | 1996-12-24 |
CA2220471A1 (en) | 1996-12-12 |
AU710512B2 (en) | 1999-09-23 |
EP0831739A1 (en) | 1998-04-01 |
ZA964750B (en) | 1997-02-03 |
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