Hollow viscous and soild organ tonometry

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

128691, 128749, A61B 500

Patent

active

055268099

ABSTRACT:
Ischemia in a hollow internal organ can be detected in its incipient stages by obtaining a CO.sub.2 sample from within the organ of interest, measuring the partial pressure of CO.sub.2 sample, measuring the bicarbonate concentration of an arterial blood sample, and on the basis of these two measurements calculating the pH of the wall of the organ. The value of the pH is an indicator of the onset of ischemia in the organ. The CO.sub.2 sample is obtained by a novel catheter, multiple embodiments of which are disclosed. Also disclosed is a method for determining the vitality or adequacy of oxygenation of the whole body, or a solid internal organ, by the measurement of the pH of venous blood.

REFERENCES:
patent: 3043309 (1962-07-01), McCarthy
patent: 3339552 (1967-09-01), Aillon
patent: 3395710 (1968-08-01), Strattan et al.
patent: 3437088 (1969-04-01), Bielinski
patent: 3480003 (1969-11-01), Crites
patent: 3658053 (1972-04-01), Fergusson et al.
patent: 3734094 (1973-05-01), Calirog
patent: 3794041 (1974-02-01), Frei et al.
patent: 3983879 (1976-10-01), Todd
patent: 4003705 (1977-01-01), Buzza et al.
patent: 4063561 (1977-12-01), McKenna
patent: 4120292 (1978-10-01), LeBlanc, Jr. et al.
patent: 4173981 (1979-11-01), Mortensen
patent: 4176659 (1979-12-01), Rolfe
patent: 4187856 (1980-02-01), Hall et al.
patent: 4214593 (1980-07-01), Imbruce et al.
patent: 4221567 (1980-09-01), Clark et al.
patent: 4223513 (1980-11-01), Elder et al.
patent: 4244377 (1981-01-01), Grams
patent: 4259960 (1981-04-01), Taylor
patent: 4265249 (1981-05-01), Schindler et al.
patent: 4273636 (1981-06-01), Shimada et al.
patent: 4304239 (1981-12-01), Perlin
patent: 4338174 (1982-07-01), Tamura
patent: 4381011 (1983-04-01), Somers, 3rd
patent: 4384586 (1983-05-01), Christiansen
patent: 4423739 (1984-01-01), Passaro et al.
patent: 4432366 (1984-02-01), Margules
patent: 4480190 (1984-10-01), Burough et al.
patent: 4497324 (1985-02-01), Sullivan et al.
patent: 4516580 (1985-05-01), Polanizi
patent: 4534825 (1985-08-01), Koning et al.
patent: 4576590 (1986-03-01), Fiddian-Green
patent: 4580560 (1986-04-01), Straith
patent: 4583969 (1986-04-01), Mortensen
patent: 4596931 (1986-06-01), Ehnholm et al.
patent: 4610656 (1986-09-01), Mortensen
patent: 4643192 (1987-02-01), Fiddian-Green
patent: 4671287 (1987-06-01), Fiddian-Green
patent: 4727730 (1988-03-01), Boiarski et al.
patent: 4738668 (1988-04-01), Bellotti et al.
patent: 4774956 (1988-10-01), Kruse et al.
patent: 4784660 (1988-11-01), Fischell
patent: 4790328 (1988-12-01), Young
patent: 4792330 (1988-12-01), Lazarus et al.
patent: 4809710 (1989-03-01), Williamson
patent: 4850958 (1989-07-01), Berry et al.
patent: 4859858 (1989-08-01), Knodle et al.
patent: 4859859 (1989-08-01), Knodle et al.
patent: 4873990 (1989-10-01), Holmes et al.
patent: 4907166 (1990-03-01), Coeman et al.
patent: 4914720 (1990-04-01), Knodle et al.
patent: 4966578 (1990-10-01), Baier et al.
patent: 4981470 (1991-01-01), Bombeck, IV
patent: 4998527 (1991-03-01), Meyer
patent: 5002055 (1991-03-01), Merki et al.
patent: 5042522 (1991-08-01), Coreman et al.
patent: 5067492 (1991-11-01), Yelderman et al.
patent: 5095913 (1992-03-01), Yelderman et al.
patent: 5158083 (1992-10-01), Sacristan et al.
patent: 5167237 (1992-12-01), Rabin et al.
patent: 5174290 (1992-12-01), Fiddian-Green
patent: 5186172 (1993-02-01), Fiddian-Green
A FIBER OPTIC PCO.sub.2 SENSOR, Vurek, et al--Annals of Biomedical Engineering, vol. 11, pp. 499-510, 1983.
Walton, Fifth ISA Biomedical Sciences Intrumentation Symp., Denver, Colo., May 1970, pp. 155-158.
Ali, J. et al., "The Cardiorespiratory Effects of Increased Intra-Abdominal Pressure in Diaphragmatic Rupture," J. Trauma 33:233-239 (1992).
Anzivino, M. J. et al., "Elevated Systemic to Intramucosal Stomach Wall pH-GAP in Patients with Sepsis," Chest 98(2) (1990) Suppl.
Badgwell, J. M. et al., "End-Tidal Carbon Dioxide Pressure in Neonates and Infants Measured by Aspiration and Flow-Through Capnography," J. Clin. Monit. 7:285-288 (1991).
Bagley, N. A. et al., "Urodynamic Evaluation of Voluntary Detrusor Response in Healthy Subjects," Arch. Phys. Med. Rehabil. 66:160-163 (1985).
Barbalias, G. A. et al., "Rectal Pressure Measurements and Intra-Abdominal Pressure Changes".
Barnes, G. E. et al., "Cardiovascular Responses to Elevation of Intra-Abdominal Hydrostatic Pressure," Am. J. Physiol. 48:R208-R213 (1985).
Bass, B. L., et al., "Intraluminal pCO.sub.2 : A reliable Indicator of Intestinal Ischemia," J. Surg. Res. 39:351-360 (1985).
Bergofsky, E. A., "Determination of Tissue O.sub.2 Tensions by Hollow Viseral Tonometers: Effect of Breathing in Enriched O.sub.2 Mixtures" J. Clin. Invest. 43:193-200 (1964).
Boda, D. et al., "Gastrotonometry an Aid to the Control of Ventilation During Artificial Respiration," Lancet Jan. 24, 1959 pp. 181 and 182.
Bradley, S. E. et al., "The Effect of Increased Intra-Abdominal Pressure on Renal Function in Man," J. Clin. Invest. 26:1010-1022 (1947).
Brantigan, J. W. et al., "A Teflon Membrane for Measurement of Blood and Intramyocardial Gas Tensions by Mass Spectroscopy," J. Applied Physiol. 32:276-282 (1972).
Bryant, T. N. et al., "Indirect Monitoring and Analysis of Truncal Stress Over Extended Time Periods," J. Biomed. Eng. 8:172-174 (1986).
Buchler, B. et al., "Effects of Pleural Pressure and Abdominal Pressure on Diaphragmatic Blood Flow," J. Applied Physiol. 58:691-697 (1985).
Burchard, K. W. et al., "Positive and Expiratory Pressure with Increased Intra-Abdominal Pressure," SGO 161:313-318 (1984).
Cadwell, C. B. et al., "Evaluation of Intra-Abdominal Pressure and Renal Hemodynamics," Current Surg. 43:495-498 (1986).
Cadwell, C. B. et al., "Changes in Visceral Blood Flow with Elevated Intraabdominal Pressure," J. Surg. Res. 43:14-20 (1987).
Calloway, D. H., "Gas in the Alimentary Canal," Chapter 137 in Handbook of Physiology--Alimentary Canal, V:2839-2859.
Celoria, G. et al., "Oliguria from High Intra-Abdominal Pressure Secondary to Ovarian Mass," Crit. Care Med. 15:78-79 (1987).
Cerabona, T. et al., "Urinary Bladder Measurements of Intra-Abdominal Pressure (IAP) in Ascitic Cirrhotisc Predictive of Hemodynamic and Renal Function," Crit. Care Med. 16:431 (1988).
Collee, G. G. et al., "Bedside Measurement of Intra-Abdominal Pressure (IAP) Via an Indwelling Naso-Gastric Tube: Clinical Validation of the Technique," Intensive Care Med. 19:478-480 (1993).
Cresswell, A. G. et al., "Observations on Inta-Abdominal Pressure and Patterns of Abdominal Intra-Muscular Activity in Man," Acta. Physiol. Scand. 144:409-148 (1992).
Cresswell, A. G., et al., "Intra-Abdominal Pressure and Patterns of Abdominal Muscle Activation in Isometric Trunk Flexion and Extension," Abstracts--International Society of Biomechanics XII Congress p. 998 (1989).
Cullen, D. J. et al., "Cardiovascular, Pulmonary, and Renal Effects of Massively Increased Intra-Abdominal Pressure in Critically III Patients," Crit. Care Med. 17:118-121 (1989).
Daly, R. C. et al., "Abdominal Reexploration for Increase Intra-Abdominal Pressure and Acute Oliguric Renal Failure," Contemp. Surg. 35:11-18 (1989).
Dawson, A. M. "Amall Bowel Tonometry: Assessment of Small Mucosal Oxygen Tension in Dog and Man," Nature 206:943-944 (1965).
Diebel, L. N. et al., "Effect of Increased Intra-Abdominal Pressure on Mesenteric Arterial and Intestinal Mucosal Blood Flow," J. Trauma 33(1):45-49 (1992).
Diebel, L. et al., "Effect of Intra-Abdominal Pressure on Abdominal Wall Blood flow," Am. Surg. 58:573-576 (1992).
Diebel, L. N. et al.,"Effect on Increased Intra-Abdominal Pressure on Hepatic Arterial, Portal Venous, and Hepatic Microcirculatory Blood Flow," J. Trauma 33:279-283 (1992).
Ducas, J. et al., "Thoracicoabdominal Mechanics During Resuscitation Maneuvers," Chest 84/4 (1983).
Elder, J. B. et al., "Intragastric PCO.sub.2 in Man and Calculated Gastric Bicarbonate Concentrations: Effect of Carbenoxolone Sodium," Carbenoxolone Effect on Intragastric PCO.sub.2 and HCO.sub.3 pp. 19-25 (1980).
Emerson, H., "Intra-Abdominal Presures," Arch. Int. Med. 7:754-784 (1911).
Fairbank, J. C. et al., "Intraabdominal Pressur

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hollow viscous and soild organ tonometry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hollow viscous and soild organ tonometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hollow viscous and soild organ tonometry will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-216634

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.