Balloon inflation device
First Claim
1. A method implemented by a powered inflation device to prepare a balloon catheter for use during a medical procedure, the method comprising:
- closing a first valve of the inflation device to close off fluid communication between the balloon catheter and a pressurizing unit of the inflation device;
opening a second valve of the inflation device to allow fluid communication between the pressurizing unit and a fluid reservoir; and
after closing the first valve and opening the second valve, and during a first motorized operation of the inflation device, moving a plunger of the pressurizing unit a first distance in a first direction to draw an amount of medical fluid from the fluid reservoir into the pressurizing unit;
after the first motorized operation of the inflation device;
closing the second valve to close off fluid communication between the pressurizing unit and the fluid reservoir,opening the first valve to allow fluid communication between the pressurizing unit and the balloon catheter, andduring a second motorized operation of the inflation device, moving the plunger of the pressurizing unit a second distance in the first direction to remove an amount of air from the balloon catheter; and
after the second motorized operation of the inflation device, and during a third motorized operation of the inflation device while the second valve is closed and the first valve is open, moving the plunger of the pressurizing unit a third distance in a second direction to inject the amount of medical fluid from the pressurizing unit into the balloon catheter to inflate a balloon located at a distal end of the balloon catheter, wherein the second direction is opposite to the first direction.
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Accused Products
Abstract
One embodiment provides a method implemented by a powered inflation device to prepare a balloon catheter for use during a medical procedure. In this embodiment, the method includes drawing an amount of medical fluid from a fluid reservoir into the inflation device during a first motorized operation of the inflation device, removing an amount of air from the balloon catheter during a second motorized operation of the inflation device, and injecting the amount of medical fluid from the inflation device into the balloon catheter during a third motorized operation of the inflation device to inflate a balloon located at a distal end of the balloon catheter. The powered inflation device may be a stand-alone device in one embodiment. In one embodiment, the powered inflation device is coupled to an angiographic injector system. When it is coupled to an angiographic injector system, the balloon inflation device and the injector system may be controlled by a common control panel, or console, in one embodiment.
84 Citations
23 Claims
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1. A method implemented by a powered inflation device to prepare a balloon catheter for use during a medical procedure, the method comprising:
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closing a first valve of the inflation device to close off fluid communication between the balloon catheter and a pressurizing unit of the inflation device; opening a second valve of the inflation device to allow fluid communication between the pressurizing unit and a fluid reservoir; and after closing the first valve and opening the second valve, and during a first motorized operation of the inflation device, moving a plunger of the pressurizing unit a first distance in a first direction to draw an amount of medical fluid from the fluid reservoir into the pressurizing unit; after the first motorized operation of the inflation device; closing the second valve to close off fluid communication between the pressurizing unit and the fluid reservoir, opening the first valve to allow fluid communication between the pressurizing unit and the balloon catheter, and during a second motorized operation of the inflation device, moving the plunger of the pressurizing unit a second distance in the first direction to remove an amount of air from the balloon catheter; and after the second motorized operation of the inflation device, and during a third motorized operation of the inflation device while the second valve is closed and the first valve is open, moving the plunger of the pressurizing unit a third distance in a second direction to inject the amount of medical fluid from the pressurizing unit into the balloon catheter to inflate a balloon located at a distal end of the balloon catheter, wherein the second direction is opposite to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A powered inflation device to prepare a balloon catheter for use during a medical procedure, the inflation device comprising:
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a motor; and a pressurizing unit comprising a plunger, the pressurizing unit being operatively coupled to the motor and to a fluid reservoir; wherein before a first operation, the inflation device closes a first valve of the inflation device to close off fluid communication between the pressurizing unit and the balloon catheter, and opens a second valve of the inflation device to allow fluid communication between the pressurizing unit and the fluid reservoir; wherein, during the first operation, the motor causes the plunger of the pressurizing unit to move a first distance in a first direction to draw an amount of medical fluid from the fluid reservoir into the pressurizing unit; wherein, after the first operation, the inflation device closes the second valve to close off fluid communication between the pressurizing unit and the fluid reservoir, and opens the first valve to allow fluid communication between the pressurizing unit and the balloon catheter; wherein, after the first operation and during a second operation, the motor causes the plunger of the pressurizing unit to move a second distance in the first direction to remove an amount of air from a balloon catheter that is coupled to the inflation device; and wherein, after the second operation and during a third operation, and while the second valve is closed and the first valve is open, the motor causes the plunger of the pressurizing unit to move a third distance in a second direction to inject the amount of medical fluid from the pressurizing unit into the balloon catheter to inflate a balloon located at a distal end of the balloon catheter, wherein the second direction is opposite to the first direction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification