Device for irrigation and insufflation with blood pressure dependent pressure control
First Claim
1. A device for irrigation and/or insufflation during endoscopic surgery or endoscopic procedures in a body cavity, comprisinga first fluid pump device in fluid connection with the body cavity via a fluid line, wherein the first fluid pump device is adapted to deliver a fluid to the body cavity,a second fluid pump device in fluid connection with the body cavity via a fluid line, wherein the second fluid pump device is adapted to move a fluid from the body cavity,a control unit connected to the first fluid pump device and/or the second fluid pump device,a blood pressure measuring device, connected to the control unit, wherein the blood pressure measuring device is adapted to measure a blood pressure, and deliver a blood pressure measurement signal,wherein the control unit is adapted to derive a control signal based on the signal from the blood pressure measuring device, wherein the control unit is further adapted to send the control signal to the first fluid pump device and/or the second fluid pump device,wherein the control signal is derived by processing the signal from the blood pressure measuring device by using a correlation factor stored in the device, wherein the correlation factor is dependent on the relationship between the blood pressure measurement signal and a perfusion pressure of the body cavity,wherein the first fluid pump device and/or the second fluid pump device is adapted to control the pressure in the body cavity based on said control signal received from the control unit.
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Accused Products
Abstract
A device for irrigation and/or insufflation during endoscopic surgery/procedures in a body cavity, comprising a first fluid pump device to deliver fluid to the body cavity, a second fluid pump device to move fluid from the body cavity, a control unit connected to the first and/or second fluid pump device, a blood pressure measuring device, wherein the control unit derives a control signal based on a signal from the blood pressure measuring device, and sends the control signal to the first fluid and/or second fluid pump device, wherein the control signal is derived by processing the signal from the blood pressure measuring device using a correlation factor in the device, dependent on the relationship between a blood pressure measurement signal, and a perfusion pressure of the body cavity, wherein the first and/or second fluid pump device controls the pressure in the body cavity based on the control unit'"'"'s control signal.
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Citations
24 Claims
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1. A device for irrigation and/or insufflation during endoscopic surgery or endoscopic procedures in a body cavity, comprising
a first fluid pump device in fluid connection with the body cavity via a fluid line, wherein the first fluid pump device is adapted to deliver a fluid to the body cavity, a second fluid pump device in fluid connection with the body cavity via a fluid line, wherein the second fluid pump device is adapted to move a fluid from the body cavity, a control unit connected to the first fluid pump device and/or the second fluid pump device, a blood pressure measuring device, connected to the control unit, wherein the blood pressure measuring device is adapted to measure a blood pressure, and deliver a blood pressure measurement signal, wherein the control unit is adapted to derive a control signal based on the signal from the blood pressure measuring device, wherein the control unit is further adapted to send the control signal to the first fluid pump device and/or the second fluid pump device, wherein the control signal is derived by processing the signal from the blood pressure measuring device by using a correlation factor stored in the device, wherein the correlation factor is dependent on the relationship between the blood pressure measurement signal and a perfusion pressure of the body cavity, wherein the first fluid pump device and/or the second fluid pump device is adapted to control the pressure in the body cavity based on said control signal received from the control unit.
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13. A method for controlling an irrigation or insufflation fluid pressure in a body cavity of a patient, comprising the steps of:
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setting a default target deliver pressure (DP-dt) for the irrigation or insufflation fluid, measuring a blood pressure, of said patient, dynamically calculating a true perfusion pressure (PP-t) based on the measured blood pressure by processing a signal from a blood pressure measuring device by using a correlation factor, automatically adjusting the default target deliver pressure (DP-dt) based on the true perfusion pressure (PP-t) into an actual target for the deliver pressure (DP-at). - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 24)
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Specification