Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-11678896-B2
Publication Date
2023-06-20
Expiration Date
Abstract
In one embodiment, system for real time monitoring of catheter aspiration includes a housing having a first port adapted for connection to a vacuum source and a second port adapted for connection with an aspiration catheter, a pressure sensor in fluid communication with an interior of the housing, a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure, and a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold. In another embodiment, the system for real time monitoring of catheter aspiration further includes a vacuum source for connection to the first port and an aspiration catheter having an aspiration lumen for connection to the second port.
Core Innovation
The invention relates to an aspiration monitoring device for real time monitoring of catheter aspiration. The device includes a housing and an elongate passage extending within the housing and terminating in an orifice configured to be coupled to a vacuum source. The passage is configured to be coupled to an aspiration lumen of an aspiration catheter such that aspirated blood can transit through the passage and out the orifice.
A pressure sensor carried by the housing measures pressure within the passage. A microprocessor is coupled to the pressure sensor and configured for measuring deviations in the measured pressure and determining that a change in the measured pressure conforms with a particular relationship in comparison to a pre-set threshold. The device further monitors pressure over time and compares pressure deviation behavior to stored differential values and durations.
A light coupled to the microprocessor generates a visual signal based on the microprocessor determination. The light comprises one or more LED, and the visual signal is different depending on whether a value obtained from the pressure sensor is less than the pre-set threshold or greater than the pre-set threshold. Alerts are generated as a result of the determination, including visual alert signaling and optional wireless wearable communication.
Claims Coverage
The document includes one independent claim that covers a real-time catheter aspiration monitoring device with pressure sensing, deviation measurement versus a pre-set threshold, and differential visual signaling using LEDs. The inventive features are expressed as four structural and functional elements in the independent claim, with dependent claims further refining the visual signal and adding supporting components.
Real-time aspiration monitoring with pressure passage to vacuum source
A monitoring device comprising a housing; an elongate passage extending within the housing and terminating in an orifice configured to be coupled to a vacuum source; and the passage configured to be coupled to an aspiration lumen of an aspiration catheter such that aspirated blood can transit through the passage and out the orifice.
Pressure sensing within the aspiration passage
A pressure sensor carried by the housing configured to measure pressure within the passage.
Measuring pressure deviations and comparing to a pre-set threshold
A microprocessor coupled to the pressure sensor and configured for measuring deviations in the measured pressure, and for determining that a change in the measured pressure conforms with a particular relationship in comparison to a pre-set threshold.
LED visual signal that differs based on less-than versus greater-than the pre-set threshold
A light coupled to the microprocessor and configured to generate a visual signal as a result of the determination, wherein the light comprises one or more LED, and wherein the visual signal is different when a value obtained as a result of the pressure sensor is less than the pre-set threshold than it is when the value is greater than the pre-set threshold.
Overall, the independent claim requires an aspiration monitoring device that measures pressure in a passage coupled to a vacuum source, computes deviations, compares pressure change behavior to a pre-set threshold, and produces LED-based visual signaling that varies depending on whether the measured value is less than versus greater than the threshold.
Stated Advantages
Provides real-time monitoring of catheter aspiration based on pressure deviations relative to a pre-set threshold.
Generates a visual signal with LED behavior that differs depending on whether measured pressure is less than or greater than the pre-set threshold.
Enables detection of conditions such as clogging, loss of vacuum/system leak, and thrombus engagement/aspiration state based on pressure deviation behavior over time.
Documented Applications
Real-time catheter aspiration monitoring by detecting aspiration-related conditions using measured pressure deviations and generating corresponding alerts.
Monitoring aspiration states based on pressure-versus-time behavior, including clog condition, system leak/loss of vacuum, and thrombus being aspirated versus not being aspirated.
Interested in licensing this patent?