AU2004218771A1 - Intra-abdominal pressure monitoring uninary catheter - Google Patents
Intra-abdominal pressure monitoring uninary catheter Download PDFInfo
- Publication number
- AU2004218771A1 AU2004218771A1 AU2004218771A AU2004218771A AU2004218771A1 AU 2004218771 A1 AU2004218771 A1 AU 2004218771A1 AU 2004218771 A AU2004218771 A AU 2004218771A AU 2004218771 A AU2004218771 A AU 2004218771A AU 2004218771 A1 AU2004218771 A1 AU 2004218771A1
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- Australia
- Prior art keywords
- pressure
- intra
- catheter
- abdominal
- abdominal pressure
- Prior art date
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- Granted
Links
- 238000012544 monitoring process Methods 0.000 title description 4
- 230000002485 urinary effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 241000124008 Mammalia Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 20
- 238000005259 measurement Methods 0.000 description 8
- 230000002496 gastric effect Effects 0.000 description 6
- 238000009530 blood pressure measurement Methods 0.000 description 5
- 230000002463 transducing effect Effects 0.000 description 4
- 210000000683 abdominal cavity Anatomy 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000003932 urinary bladder Anatomy 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- 241001639412 Verres Species 0.000 description 2
- 238000001949 anaesthesia Methods 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000036724 intravesical pressure Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 238000009810 tubal ligation Methods 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 238000010200 validation analysis Methods 0.000 description 2
- 210000001631 vena cava inferior Anatomy 0.000 description 2
- 241001559589 Cullen Species 0.000 description 1
- 206010021118 Hypotonia Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010054974 Pelvic haematoma Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002682 general surgery Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000036640 muscle relaxation Effects 0.000 description 1
- 210000003200 peritoneal cavity Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000003689 pubic bone Anatomy 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 210000005070 sphincter Anatomy 0.000 description 1
- 230000008925 spontaneous activity Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 230000003202 urodynamic effect Effects 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
WO 2004/080519 PCT/AU2004/000282 I INTRA-ABDOMINAL PRESSURE MONITORING URINARY CATHETER The following statement Is a full description of the invention and includes the best method of performing it. This Invention relates medical diagnostic equipment and methods and is particularly concerned measuring intra-abdominal pressure using direct or remote sensing of pressure within the organ in particular Intra-abdomial pressure and related pressure within adjacent organs The following statement is a full description of the invention and Includes the best method of performing It. Until the advent of recent publication in relating to renal failure and complication of pressure after surgery few considered intra-abdominal pressure measurement to be importt,e~m it is now recognized as an important part of post-opertive care. Currently intra-abdominal pressure is measured usIng a urinary catheter requiring insertion of an extra T-plece or a needle directly into the urinary catheter to allow the pressure to be measured using a transducer or a manometer. A wide variety of Innovative techniques have been used to measure IAP in nearly every part of the abdominal cavity, including the rectum, stomach, urinary bladder, uterus, liver, inferior vena cava, and free within the intra-peritoneal cavity SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 2 Rectal pressure measurement was experimentally popular in the early part of this century, using a Mllier Abbott tube ,lt would appear generally it Is a simple but slightly unreliable technique. McCarthy In 1982 in a study of 12 patients undergoing urodynamic evaluation and laparoscopic tubal ligation found that there was a good correlation between Intra abdominal and rectal pressures. He expressed concern that reliability of this technique required the catheter to remain 10cm above the anal verge otherwise the values were greater than the abdominal values. Presumably this was due to the spontaneous activity of the rectal sphincters . Shafik used rectal pressure In many of his experiments In humans on rectal detrusor muscle activity . He used a urinary catheter with an outer diameter of 1.2mm and found that there was good visual correlation between Intravesical and rectal pressures, intra-gastric measurement was used in the early part of this century with a Hamilton manometer, which afforded the simplest and most reliable technique at the time. Simple techniques using nasogastric tubes to measure IAP have been used by Cullen, Fletsam and Collee. Concern has been expressed about simple perfusion techniques using a nasogastric tube, and Lacey in an animal study found that the use of gastric pressure measurement through an irrigational portal of the nasogastric tube is not reproducible. Collee, from London, used an unperfused nasogastric tube to obtain 141 paired measurements in 28 general surgery patients in IOU. He found using appropriate statistical modelling, that gastric pressure may be 2.5cm of water above or below intra-vesical pressure, SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 3 This is discussed In more detail in Chapter 5. The intra gastric route has two specific advantages. It can be used when there has been trauma to the bladder or where the patient does not have a urinary catheter in place. Gastric pressures are also very useful when there is a tense pelvic haematoma following pelvic trauma, as vesical pressures in this situation may not reflect general tAPs. Direct cannulation of the peritoneal cavity had been used experimentally, but it is not as accurate as the intravesical technique and is invasive . Motew used a Verres needle to measure IAP in an experiment on 12 women undergoing tubal ligation. The use of a Verres needle to measure IAP may not be accurate during flow states, It Is also dependent on the degree of muscle relaxation required for the laparoscopy. Obeid and colleagues, from Detroit, reported in 1995 a comparison of IAP measurement using four techniques in 26 patients. These Included an Intra-gastric route via a simple NG, a laparoscopic insufflator, rectal pressure via a modified oesophageal stethoscope and a standard Intra-vesical method wIth a urinary catheter. Obald found that with a standard 6mmHg rise in IAP, as measured by the insufflator, this was best correlated with the intravesical measurements, with a rise of 5.7mmHg (±9.8), The gastric and rectal pressures were less reliable with the following changes recorded, -0.7± 9.8mmHg and 3.3± 8.8mmHg respectively. He found the rectal and gastric pressures were more position dependent and less reliable than the intravesical approach. The specific limitation of the laparoscopic technique in Obeid's study is the lack of validation of the Stryker endoscopy high flow insufflator, which was used as the gold standard to compare with the other methods. In clinical practice pressures measured with such laparoscopic insufflators may fluctuate widely during surgery. This can be related to SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 4 the depth of anaesthesia and port mechanics Including blockage with blood or other products. Because of the fluid dynamics In the abdominal cavity, IAP can also be measured through a central venous line if its tip Is In the inferior vena cava. This has been utilised by a number of researchers . Lacey in a study of rabbits, comparing different sltes of IAP measurement found an excellent correlation between IVC pressures and vesical IAP readings .. It should be remembered that these experiments were performed in rabbits, under general anaesthesia. In addition Lacey found that there was poor correlation between superior vena cava, rectus abdominus and rectal pressure The gold standard for IAP measurement has been the Intravesical technique Unfortunately Kron did not test the reliability of his technique and validation of the intravesical technique was undertaken and published by liberty and colleagues at Mount Sinai medical centre In 19G9. In a study of post-operative patlants with closed Intra-abdominal drains they compared urinary catheter measurements with those recorded from the abdominal drains, They used the pubis as the zero point which may give rise to slightly reduced as it lies above the mid point of the abdominal cavity, SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 5 lberti's, investigations revealed a good correlation between Intra-abdominal and intra vesical pressure, In addition he found that there was little effect of positive end expiratory pressure (PEEP) on IAP. I have modified the technique slightly and the technique used In this project is according to the protocol below; Other techniques, Including Installation of saline Into the bladder and holding the catheter In the air have also been described, They are cumbersome, do not provide on-line monitoring or are time consuming. Previously the direct on-line monitoring of urinary catheters has not been reported as a measure of intra-abdominal pressure. Urinary catheters usually contain two lumens, one for the balloon and one for the urine flow, For patients with haematurla, triple lumen catheters have been used for years. They allow irrigation through the third lumen. They have not been used or reported to measure intra-abdominal pressure. The present problems with intra-abdominal pressure measurement are overcome by the present invention, which provides direct access to the triple lumen urinary catheters third lumen, allowing direct transducing of intra-abdominal pressure directly, without interruption of urine flow, In one embodiment of the Invention, the urinary catheter contains a Luer lock, allowing direct connection to a transducing manometer or remote sensor (figure 1). SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 6 The line is irrigated with a liquid and connected to a pressure transducer for on-line pressure measurement. A cross section of the tube is shown in figure 2, In yet another aspect or embodiment the device uses, a T-piece attached either to the pressure transducing channel to allow remote pressure reading. Optionally when a temperature sending means Is required this may be added to the catheter. In an embodiment of the present invention a pressure transmitting channel which is filled with a medium either air or liquid can be attached to a Luer lock with a three way tap allowing Irrigation or perfusion of that channel. The change In pressure at the end of the catheter is thereby transmitted and communicated to the to the pressure transducing medium. In an embodiment of the Invention the pressure transmission can be connected to a manometer or liquid column at he patient bedside. The pressure measuring urinary catheter may be left in the patient for unspecified times and measurement recoded continuously or at intervals. The catheter may be made of a material meeting international standards for medical use, silicone, pvc latex or other material. The urinary catheter Is inserted through the urethra, under standard sterile conditions, with use of the retention balloon insufflated with saline. SUBSTITUTE SHEET (RULE 26) RO/AU
Claims (8)
- 2. The pressure-measuring device of claim i may be of a luer-lock direct female male connection type or a three-way tap, or a T-piece insertion,
- 3. An apparatus according to claim 2 wherein said pressure transmitting material is air
- 4. An apparatus accordIng to claim 3 wherein said pressure transmitting material is a saline solution
- 5. An apparatus according to claim 4 wherein said pressure sensor means further comprIses a pressure transducer
- 6. An apparatus according to claim 5 wherein said pressure sensor means further comprises a manometer located external to said human or mammal
- 7. An apparatus according to claim 6 wherein said pressure sensor means further comprises a manometer
- 8. An apparatus according to claim 7 which Is made of silicone SUBSTITUTE SHEET (RULE 26) RO/AU WO 2004/080519 PCT/AU2004/000282 8
- 9. In the case of the Intra-abdominal pressure measuring urinary catheter, the connections may be made of different materials, silicone, PVC or other material consistent with standard medical equipment. 10,An intra-abdominal pressure-measuring catheter as herein described with reference to the accompanying drawing, SUBSTITUTE SHEET (RULE 26) RO/AU
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004218771A AU2004218771B2 (en) | 2003-03-10 | 2004-03-08 | Intra-abdominal pressure monitoring uninary catheter |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003901057 | 2003-03-10 | ||
AU2003901057A AU2003901057A0 (en) | 2003-03-10 | 2003-03-10 | Intra-abdominal urinary catheter pressure monitor |
AU2004218771A AU2004218771B2 (en) | 2003-03-10 | 2004-03-08 | Intra-abdominal pressure monitoring uninary catheter |
PCT/AU2004/000282 WO2004080519A1 (en) | 2003-03-10 | 2004-03-08 | Intra-abdominal pressure monitoring uninary catheter |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2004218771A1 true AU2004218771A1 (en) | 2004-09-23 |
AU2004218771B2 AU2004218771B2 (en) | 2010-03-25 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2004218771A Expired AU2004218771B2 (en) | 2003-03-10 | 2004-03-08 | Intra-abdominal pressure monitoring uninary catheter |
Country Status (1)
Country | Link |
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AU (1) | AU2004218771B2 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4217911A (en) * | 1978-10-27 | 1980-08-19 | The Kendall Company | Cystometry system |
CA1176929A (en) * | 1982-07-14 | 1984-10-30 | Urotek Inc. | Urodynamic catheter |
DE3629732A1 (en) * | 1986-09-01 | 1988-03-03 | Franz Dr Med Heinz | BLADDER AND URINE PRESSURE CATHETER |
US5433216A (en) * | 1993-06-14 | 1995-07-18 | Mountpelier Investments, S.A. | Intra-abdominal pressure measurement apparatus and method |
US5385563A (en) * | 1993-09-14 | 1995-01-31 | The Kendall Company | Urodynamic catheter |
DE19530440C2 (en) * | 1995-08-18 | 1997-09-11 | Dieter Dr Echtle | Rectal catheter |
US6296615B1 (en) * | 1999-03-05 | 2001-10-02 | Data Sciences International, Inc. | Catheter with physiological sensor |
JPH11155821A (en) * | 1997-11-26 | 1999-06-15 | Kawasumi Lab Inc | Inner pressure measuring catheter with balloon |
US6447462B1 (en) * | 2000-02-15 | 2002-09-10 | Clinical Innovation Associates, Inc. | Urodynamic catheter and methods of fabrication and use |
DE10196865T5 (en) * | 2000-11-13 | 2004-05-06 | Wit Ip Corporation(N.D.Ges.D.Staates Delaware), Southborough | Treatment catheter with areas of thermal insulation |
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2004
- 2004-03-08 AU AU2004218771A patent/AU2004218771B2/en not_active Expired
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AU2004218771B2 (en) | 2010-03-25 |
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Legal Events
Date | Code | Title | Description |
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PC1 | Assignment before grant (sect. 113) |
Owner name: WOLFE TORY MEDICAL, INC Free format text: FORMER APPLICANT(S): SUGRUE, MICHAEL |
|
FGA | Letters patent sealed or granted (standard patent) | ||
PC | Assignment registered |
Owner name: ABVISER MEDICAL, LLC Free format text: FORMER OWNER WAS: WOLFE TORY MEDICAL, INC |
|
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |