Manual timer control for inflation device
First Claim
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1. A timing system for measuring the time elapsed during an inflation cycle of a medical procedure, comprising:
- a catheter having a proximal end and a distal end, said proximal end having an inflation device connected thereto, and said catheter having an inflatable member near its distal end;
an inflation lumen within said catheter providing fluid communication between said inflation device and said inflatable member, said inflation device operable to pressurize and depressurize said inflatable member;
a timer for measuring elapsed time;
a manually operable pressure switch operably associated with said inflation device, said pressure switch having an increase-pressure button which is actuated manually to initiate operation of said timer when said increase-pressure button is deactivated; and
means for displaying the elapsed time so that after said inflation device pressurizes said inflation lumen and said inflatable member with fluid, said timer is manually activated to measure elapsed time during said inflation cycle of the medical procedure.
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Abstract
A manually operable pressure switch is used to activate an inflation device in order to pressurize an inflatable member such as that found on a dilatation catheter. By operating the pressure switch, the physician simultaneously operates a timer which will measure and display the elapsed time of the inflation and deflation cycle.
175 Citations
13 Claims
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1. A timing system for measuring the time elapsed during an inflation cycle of a medical procedure, comprising:
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a catheter having a proximal end and a distal end, said proximal end having an inflation device connected thereto, and said catheter having an inflatable member near its distal end; an inflation lumen within said catheter providing fluid communication between said inflation device and said inflatable member, said inflation device operable to pressurize and depressurize said inflatable member; a timer for measuring elapsed time; a manually operable pressure switch operably associated with said inflation device, said pressure switch having an increase-pressure button which is actuated manually to initiate operation of said timer when said increase-pressure button is deactivated; and means for displaying the elapsed time so that after said inflation device pressurizes said inflation lumen and said inflatable member with fluid, said timer is manually activated to measure elapsed time during said inflation cycle of the medical procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A timing system for measuring the time elapsed during an inflation cycle of a medical procedure, comprising:
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a catheter having a proximal end and a distal end, said proximal end having an inflation device connected thereto, and said catheter having an inflatable member near its distal end; an inflation lumen within said catheter providing fluid communication between said inflation device and said inflatable member, said inflation device operable to pressurize and depressurize said inflatable member; a timer for measuring elapsed time; a manually operable pressure switch attached to said inflation device, said pressure switch actuated manually to simultaneously initiate operation of said inflation device to pressurize said inflatable member, said inflation device automatically stopping when the pressure in said inflatable member reaches zero after starting from a negative pressure; and means for displaying the elapsed time so that as said inflation device pressurizes said inflation lumen and said inflatable member with fluid, said timer is manually activated to measure elapsed time during said inflation cycle of the medical procedure.
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12. A timing system for measuring the time elapsed during an inflation cycle of a medical procedure, comprising:
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a catheter having a proximal end and a distal end, said proximal end having an inflation device connected thereto, and said catheter having an inflatable member near its distal end; an inflation lumen within said catheter providing fluid communication between said inflation device and said inflatable member, said inflation device operable to pressurize and depressurize said inflatable member; a timer for measuring elapsed time; a manually operable pressure switch operably associated with said inflation device, said pressure switch actuated manually to initiate operation of said timer when said pressure switch is deactivated; a process control unit associated with said pressure switch for controlling the starting and stopping of said timer; and means for displaying the elapsed time so that after said inflation device pressurizes said inflation lumen and said inflatable member with fluid, said timer is manually activated to measure elapsed time during said inflation cycle of the medical procedure.
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13. A timing system for measuring the time elapsed during an inflation cycle of a medical procedure, comprising:
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a catheter having a proximal end and a distal end, said proximal end having an inflation device connected thereto, and said catheter having an inflatable member near its distal end; an inflation lumen within said catheter providing fluid communication between said inflation device and said inflatable member, said inflation device operable to pressurize and depressurize said inflatable member with a therapeutic drug; a plurality of apertures in said inflatable member for controllably dispensing said therapeutic drug; a timer for measuring elapsed time; a manually operable pressure switch operably associated with said inflation device, said pressure switch actuated manually to initiate operation of said timer when said pressure switch is deactivated; a process control unit associated with said pressure switch for controlling the starting and stopping of said timer; and means for displaying the elapsed time so that after said inflation device pressurizes said inflation lumen and said inflatable member with said therapeutic drug, said timer is manually activated to measure elapsed time during said inflation cycle of the medical procedure.
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Specification