Systems, methods, and devices for facilitating access to target anatomical sites or environments
First Claim
Patent Images
1. A device for detecting whether a distal portion of a probe inserted into a body is located within a target anatomical environment, the device comprising:
- a housing having a distal portion with a first port that is detachably couplable to the probe, and a proximal portion with a second port that is detachably couplable to a syringe, the first port fluidly coupled to the second port, the housing graspable by a user to manipulate the housing and the probe;
a pressure sensing unit carried by the housing, the sensing unit configured to generate a pressure signal in response to a tissue pressure of an environment in which the distal portion of the probe is positioned, the tissue pressure signal comprising a series of instantaneous tissue pressure values;
a processing unit coupled to the sensing unit and carried by the housing, the processing unit comprising instructions to receive and process the series of instantaneous tissue pressure values so as to determine a mean tissue pressure value using a moving average of the series over a predetermined time, the mean tissue pressure value indicative of the tissue environment about the distal portion of the probe; and
an output unit coupled to the processing unit and carried by the housing, the output unit configured to output to a visual display a reporting signal comprising the mean tissue pressure value;
wherein the pressure sensing unit, the processing unit, and the output unit are disposed substantially between the first port and the second port of the housing and wherein the housing, the distal portion of the probe and the display are manipulatable together in order to place the probe in response to the mean tissue pressure using the moving average of the series.
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Abstract
Methods and structures for detecting a physiologic parameter of a target anatomical environment. The device including a housing with a distal portion first port couplable to a probe and a proximal portion; and a sensing unit, a processing unit, and an output unit carried by the housing, the output unit configured to output a reporting signal based on the determined physiologic parameter value such as pressure; the sensing unit, processing unit, and output unit being disposed substantially between the first port and the proximal portion of the housing.
101 Citations
36 Claims
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1. A device for detecting whether a distal portion of a probe inserted into a body is located within a target anatomical environment, the device comprising:
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a housing having a distal portion with a first port that is detachably couplable to the probe, and a proximal portion with a second port that is detachably couplable to a syringe, the first port fluidly coupled to the second port, the housing graspable by a user to manipulate the housing and the probe; a pressure sensing unit carried by the housing, the sensing unit configured to generate a pressure signal in response to a tissue pressure of an environment in which the distal portion of the probe is positioned, the tissue pressure signal comprising a series of instantaneous tissue pressure values; a processing unit coupled to the sensing unit and carried by the housing, the processing unit comprising instructions to receive and process the series of instantaneous tissue pressure values so as to determine a mean tissue pressure value using a moving average of the series over a predetermined time, the mean tissue pressure value indicative of the tissue environment about the distal portion of the probe; and an output unit coupled to the processing unit and carried by the housing, the output unit configured to output to a visual display a reporting signal comprising the mean tissue pressure value; wherein the pressure sensing unit, the processing unit, and the output unit are disposed substantially between the first port and the second port of the housing and wherein the housing, the distal portion of the probe and the display are manipulatable together in order to place the probe in response to the mean tissue pressure using the moving average of the series. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32)
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13. A device for detecting whether a distal portion of a probe inserted into a body is located within a blood vessel of a patient, the device comprising:
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a housing having a proximal portion with a second port and a distal portion with a first port, the first port detachably couplable to the probe, the housing graspable by a user to manipulate the housing and the probe; a pressure sensing unit carried by the housing, the sensing unit configured to generate a tissue pressure signal in response to pressure of a tissue environment in which a distal portion of the probe is positioned, the pressure signal comprising a series of instantaneous tissue pressure values; a processing unit coupled to the sensing unit and carried by the housing, the processing unit comprising instructions to receive and process the series of instantaneous tissue pressure values so as to determine a mean tissue pressure value using a moving average of the series over a predetermined time, the mean tissue pressure value indicative of the tissue environment about the distal portion of the probe; an output unit coupled to the processing unit and carried by the housing, the output unit configured to output to a visual display a reporting signal comprising the mean tissue pressure value; and a guidewire port carried by the housing and fluidly coupled to the first port; wherein the pressure sensing unit, processing unit, and output unit are disposed substantially between the first port and the second port of the housing and manipulatable with the housing and the probe in response to the mean tissue pressure shown on the display in order to manipulate and place the distal end of the probe in the blood vessel of the patient. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 28, 33, 34, 35, 36)
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Specification