Automatic leveling device for hemodynamic pressure measuring sys

Details Automatic leveling device for hemodynamic pressure measuring sys Automatic leveling device for hemodynamic pressure measuring sys

1986-09-22

1987-06-02

Howell, Kyle L.

Surgery

Truss

Pad

128674, 33367, A61B 502

Patent

active

046694846

ABSTRACT:
The present leveling device is operable with a hemodynamic pressure measuring system which includes a pressure catheter to be implanted in the body of the patient and pressure measuring device connected by a tube to the catheter and supported on a vertically movable support platform. The present automatic leveling device operates to automatically maintain the pressure measuring device at the same level as the catheter implanted in the patient and includes a tube level with one end being connected to the patient and at the same level as the catheter implanted in the patient and with the other end being connected to the vertically movable support for the pressure measuring device. A sensor is associated with the tube level and is operable in response to vertical movement of the catheter implanted in the patient to automatically raise and lower the vertically movable support for the pressure measuring device in response to vertical movement of the catheter implanted in the patient.

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Blackburn et al., "A Self-Levelling Central Venous Electromanometer", Med. and Biol. Eng., vol. 12, No. 3, 5-1974.

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