Blood pressure indicator gauge
OwnerBlasius Speidelinventor
Life of this patent
Estimating the term…
Abstract
A two-pointer blood pressure indicator gauge with pointer blocking solenoids for the indication of the systolic and diastolic pressures, the gauge having a blocking member or a brake disc directly attached to each of the two pointer shafts, and in which the armature of each solenoid, or a solenoid-actuated brake lever, cooperates with the associated brake member or brake disc, respectively, thereby blocking the spring-driven return motion of the pointers. The pointer for the higher pressure, being dragged by the other pointer during pressure buildup, against a separate spring, is blocked first, allowing the pointer for the lower pressure to continue its return movement until it, too, is blocked.
Claims21
A blood pressure indicator gauge designed for the measurement and the temporary recording of the systolic and/or the diastolic blood pressure of a patient as a component part of a blood pressure measuring apparatus which includes means for generating first and second electrical signals at the instances at which said systolic and diastolic pressures are established, respectively, inside a measuring sleeve of the apparatus, the indicator gauge comprising in combination:
- a gauge housing;
- a pointer shaft rotatably journalled in the housing and carrying a pointer attached to one of its extremities;
- a return spring connected to the pointer shaft so as to rotationally bias the latter in the direction of a return movement;
- a pressure capsule adapted for pressure communication with the measuring sleeve of the apparatus and including mechanical capsule movement translating means which operatively engage the pointer shaft so as to angularly advance the latter in a pushing action in opposition to the rotational return movement bias of the return spring, when the capsule expands in response to a pressure increase;
- and
- means for blocking a spring-driven pointer return movement in any pointer position within an angular pressure measurement range, in response to the reception from the apparatus of one of said electrical signals;
- said pointer blocking means comprising:
- a first blocking member mounted on the pointer shaft, at a distance from said pointer, for rotation therewith, said blocking member having a generally flat planar surface;
- a non-rotatable second blocking member supported by the housing so as to be normally positioned a minimal distance from the first blocking member in all positions of the latter within said pressure measurement range;
- said first and second blocking members being engageable against each other, in response to said one electrical signal, thereby arresting the first blocking member and the shaft and pointer to which said member is attached.
Dependencies are inferred from the claim text.