Remote sensing catheter system and methods
AssigneeOsprey Medical, Inc.
InventorsJames Edward Shapland, Tuan M. Doan, Christopher G. Quinn
Life of this patent
Estimating the term…
Abstract
A remote sensing catheter system including an injection catheter and a collection catheter. In one method of use, an external sensor of the system determines the timing of operation of the collection catheter. In another method of use, a sensor determines the volume of medium in the injection.
Claims26
A method of collecting a medium from a coronary sinus using a catheter system, the method comprising the steps of:
- a) providing a catheter system including a collection catheter;
- b) positioning a distal end of the collection catheter within the patient's coronary sinus;
- c) detecting an injection of the medium in the catheter system, including:
- i) establishing a start time of the injection;
- and
- ii) determining the volume of medium in the injection;
- and
- d) initiating operation of the collection catheter a predetermined time after the start time of the injection, wherein the step of initiating operation occurs only when the volume of medium in the injection is greater than a predetermined amount.
A method of collecting a medium from a coronary sinus using a catheter system, the method comprising the steps of:
- a) providing a catheter system including a collection catheter, the collection catheter including a sensor, the sensor being located outside a patient's body during use;
- b) positioning a distal end of the collection catheter within the patient's coronary sinus;
- c) initiating operation of the collection catheter to remove the medium from the patient's coronary sinus;
- and
- d) ceasing operation of the collection catheter when the sensor detects the absence of the medium in the collection catheter.
A method of removing a medium from a coronary sinus, the method comprising the steps of:
- a) providing a catheter system including:
- i) an injection senor, the injection sensor being external to a patient's body during use of the system;
- ii) a collection catheter and a collection sensor, the collection sensor being external to the patient's body during use of the system;
- iii) an aspiration unit in fluid communication with the collection catheter;
- and
- iv) an interface unit electrically connected to each of the injection sensor, the collection sensor, and the aspiration unit, the interface unit controlling the operation of the collection catheter;
- b) positioning a distal end of the collection catheter within the patient's coronary sinus;
- c) detecting the injection of a medium in the catheter system with the injection sensor, prior to the medium reaching the patient's coronary artery, the step of detecting including:
- i) establishing a start time of the injection;
- and
- ii) monitoring the injection duration;
- d) automatically initiating operation of the collection catheter a predetermined time after the start time of the injection, wherein the step of initiating operation occurs only when the injection duration is greater than a predetermined duration parameter;
- e) after initiating operation of the collection catheter, monitoring the collection sensor for the presence of the medium in the collection catheter;
- and
- e) automatically ceasing operation of the collection catheter after a desired majority of the medium has been removed from the patient's coronary sinus.
Dependencies are inferred from the claim text.