Non-invasive surrogate bladder pressure indication system
AssigneeDiagnostic Ultrasound Corporation
InventorGerald J. McMorrow
Life of this patent
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Abstract
The system includes a bladder volume device which determines the volume of urine in the bladder on a non-invasive basis, such as by ultrasound. The device then compares the volume determination, which is made on a regular basis, against previously obtained cystometry information for the patient, which comprises a graph which correlates bladder pressure, specifically detrusor pressure, against volume of urine in the bladder. The graph is used by the system to produce a surrogate bladder pressure for each volume determination made. The system then provides an indication of the surrogate bladder pressure so that the patient can determine when catheterization is desirable.
Claims12
A system for providing an indication of bladder pressure for a patient, comprising:
- a bladder volume determining system for obtaining the volume of urine in the bladder of a patient;
- means comparing the bladder volume determination against a previously determined cystometry graph of bladder pressure versus bladder volume for the patient, so as to determine surrogate bladder pressure values from said bladder volume determinations;
- and
- an indicator for indicating said surrogate pressure.
A method for providing an indication of bladder pressure for a patient, comprising the steps of:
- providing a device to a patient which is capable of obtaining ultrasound data concerning the patient's bladder from which the volume of urine in the bladder may be determined;
- determining the volume of urine in the patient's bladder from the ultrasound data;
- comparing the determined bladder volume against a previously determined cystometry graph of bladder pressure versus bladder volume for the patient, so as to determine surrogate bladder pressure values from bladder volume determinations;
- and
- providing an indication of said surrogate pressure to said patient.
Dependencies are inferred from the claim text.