System, device, and method for providing and controlling the supply of a distending media for CT colonography
First Claim
1. An insufflating system adapted to be in fluid communication with a source of a distending media for delivering the distending media to a patient'"'"'s colon for acquiring an image of the colon while distended, the insufflating system comprising:
- an insufflating device comprising;
a controller configured for detecting a plurality of different preset pressure levels of the distending media within the colon of the patient; and
a valve assembly in communication with the controller and in fluid communication between the source of distending media and the colon of the patient, wherein the valve assembly is configured to adjust a flow rate of the distending media flowing out of the insufflating device and delivered to the colon of the patient in response to a signal provided by the controller,wherein the controller is configured to close the valve assembly of the insufflating device to pause further delivery of the distending media from the insufflating device to the colon in response to detecting any one of the preset pressure levels of the distending media delivered to the colon, thereby allowing an operator to check a distention of the patient'"'"'s colon, andwherein the controller is further configured to open the valve assembly of the insufflating device to resume delivery of the distending media from the insufflating device to the colon in response to a selection from the operator, except when a final target insufflation pressure level is detected, such that a maximum volume of distending media in a distended portion of the colon for safety or comfort of the patient is not exceeded; and
wherein the controller is further configured such that, after first detecting the final target insufflation pressure level, the controller controls the valve assembly to regulate a flow of the distending media and thereby maintains a pressure of the distending media within the colon of the patient within a range of +/−
10% with respect to the final target insufflation pressure level.
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Accused Products
Abstract
Embodiments of the present invention relate to systems, devices, and methods for delivering distending media to an organ of a patient with a dispensing device for acquiring an image of the organ while distended. In one embodiment, an insufflating device comprises a controller for detecting a pressure level of the distending media within an organ of a patient, wherein the controller is configured to signal an operator to acquire an image of the organ when the pressure level is within a predetermined pressure range for a predetermined period of time. Further, the insufflating device comprises a valve assembly in communication with the controller and in fluid communication between the source of distending media and the organ of the patient, wherein the valve assembly is configured to adjust a flow rate of the distending media delivered to the organ of the patient.
216 Citations
22 Claims
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1. An insufflating system adapted to be in fluid communication with a source of a distending media for delivering the distending media to a patient'"'"'s colon for acquiring an image of the colon while distended, the insufflating system comprising:
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an insufflating device comprising; a controller configured for detecting a plurality of different preset pressure levels of the distending media within the colon of the patient; and a valve assembly in communication with the controller and in fluid communication between the source of distending media and the colon of the patient, wherein the valve assembly is configured to adjust a flow rate of the distending media flowing out of the insufflating device and delivered to the colon of the patient in response to a signal provided by the controller, wherein the controller is configured to close the valve assembly of the insufflating device to pause further delivery of the distending media from the insufflating device to the colon in response to detecting any one of the preset pressure levels of the distending media delivered to the colon, thereby allowing an operator to check a distention of the patient'"'"'s colon, and wherein the controller is further configured to open the valve assembly of the insufflating device to resume delivery of the distending media from the insufflating device to the colon in response to a selection from the operator, except when a final target insufflation pressure level is detected, such that a maximum volume of distending media in a distended portion of the colon for safety or comfort of the patient is not exceeded; and wherein the controller is further configured such that, after first detecting the final target insufflation pressure level, the controller controls the valve assembly to regulate a flow of the distending media and thereby maintains a pressure of the distending media within the colon of the patient within a range of +/−
10% with respect to the final target insufflation pressure level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for delivering distending media to a patient'"'"'s colon with a dispensing device for acquiring an image of the colon while distended, the method comprising:
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delivering, via a controller of an insufflating device, the distending media from the insufflating device to the colon of the patient; pausing, via the controller, delivery of the distending media from the insufflating device in response to detecting a first preset pressure level of the distending media delivered to the colon in order to allow an operator of an insufflating system comprising the insufflating device to check a status of the patient; resuming, via the controller, delivery of the distending media from the insufflating device to the colon in response to a selection by the operator; ceasing, via the controller, delivery of the distending media from the insufflating device to the colon in response to detecting a final target insufflation pressure level, wherein the final target insufflation pressure level is different than the first preset pressure level, such that a maximum volume of distending media in a distended portion of the colon for safety or comfort of the patient is not exceeded; and regulating, via the controller, a flow of the distending media and thereby maintaining a pressure of the distending media within the colon of the patient within a range of +/−
10% with respect to the final target insufflation pressure level after first detecting the final target insufflation pressure level. - View Dependent Claims (18, 19, 20)
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21. A method for delivering distending media to a patient'"'"'s colon with a dispensing device for acquiring an image of the colon while distended, the method comprising:
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delivering, via a controller of an insufflating device, the distending media from the insufflating device to the colon of the patient; pausing, via the controller, delivery of the distending media from the insufflating device in response to detecting a first preset pressure level of the distending media delivered to the colon in order to allow an operator of an insufflating system comprising the insufflating device to check a status of the patient; resuming, via the controller, delivery of the distending media from the insufflating device to the colon in response to a selection by the operator; ceasing, via the controller, delivery of the distending media from the insufflating device to the colon in response to detecting a second preset pressure level, wherein the second preset pressure level is different than the first preset pressure level; after detecting a final target insufflation pressure level, monitoring, via the controller, a pressure level of the distending media within the colon of the patient and providing an indication that proper distension has been achieved for acquiring an image of the colon based on the monitored pressure level being within a predetermined pressure range for a predetermined period of time; and regulating, via the controller, a flow of the distending media and thereby maintaining the pressure level of the distending media within the colon of the patient within a range of +/−
10% with respect to the final target insufflation pressure level after first detecting the final target insufflation pressure level. - View Dependent Claims (22)
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Specification