IPC분류정보
국가/구분 |
United States(US) Patent
공개
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0914507
(2018-03-07)
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공개번호 |
US-0256236
(2018-09-13)
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발명자
/ 주소 |
- McDermott, Sean A.
- Vadala, Charles J.
- Hanley, Brian M.
- O'Connor, John P.
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
0 |
초록
▼
The present disclosure relates generally to the field of cryotherapy. In particular, the present disclosure relates to cryotherapy systems that ensure egress of cryogen gas delivered within a patient's body during cryotherapy procedures and, more particularly, sensors for use with cryotherapy system
The present disclosure relates generally to the field of cryotherapy. In particular, the present disclosure relates to cryotherapy systems that ensure egress of cryogen gas delivered within a patient's body during cryotherapy procedures and, more particularly, sensors for use with cryotherapy systems that include delivery catheters wherein the systems ensure that egress of cryogen gas from the patient's body is possible whenever the catheter is operating.
대표청구항
▼
1. A sensor for use with a catheter that delivers cryogen gas within a body of a patient, comprising: a gas inlet at a patient side of the sensor that receives cryogen gas vented from the patient's body;a gas outlet at an atmosphere side of the sensor that vents cryogen gas out of the sensor to the
1. A sensor for use with a catheter that delivers cryogen gas within a body of a patient, comprising: a gas inlet at a patient side of the sensor that receives cryogen gas vented from the patient's body;a gas outlet at an atmosphere side of the sensor that vents cryogen gas out of the sensor to the atmosphere; anda connection between the sensor and a console for the catheter,whereby the sensor is configured to ensure that egress of cryogen gas from the gas outlet is possible whenever the catheter is operable. 2. The sensor of claim 1, further comprising a valve that communicates with the atmosphere at the gas outlet when the valve is open; and wherein the connection comprises a cable, the cable connected to the valve and the console, the cable controlled at the console by an actuator to open the valve automatically to the atmosphere when the catheter is operable. 3. The sensor of claim 2, wherein the cable is a push-pull cable, and the actuator is a linear actuator. 4. The sensor of claim 1, further comprising a flexure point that deflects upon attachment of a ventilator tube to the gas outlet; and wherein the connection comprises a switch that is actuated upon deflection of the flexure point to convey a signal along the connection to the console preventing the catheter from operating. 5. The sensor of claim 1, wherein: the gas outlet is configured to engage with a ventilator tube; andthe connection comprises an air pressure port having a first end for connection to a source of air, and a pressure relief opening on the gas outlet at a second end of the port,whereby the pressure relief opening is at least partially covered by the ventilator tube when the ventilator tube is engaged with the gas outlet, creating a threshold air pressure in the port that is measurable at the console to prevent the catheter from operating. 6. The sensor of claim 1, further comprising a manual vent valve that communicates with the atmosphere at the gas outlet, and wherein a valve position corresponding to the valve being open or closed is communicated via the connection to the console to allow the catheter to respectively operate or not operate. 7. The sensor of claim 1, wherein: the gas inlet is configured to mount to a ventilator tube inlet of an endotracheal tube adapter; the gas outlet includes a venting aperture that will not engage a ventilator tube; and the sensor includes a switch that detects when the gas inlet is mounted to the endotracheal tube adapter; andwherein the connection when the switch is actuated signals the console to allow operation of the catheter. 8. A sensor for use with a catheter that delivers cryogen gas within a body of a patient, comprising: a ventilation end for engaging a ventilator tube; anda compression switch disposed on a circumference of the ventilation end, the switch communicatively connected to a console for the catheter,whereby the sensor is configured to ensure egress of cryogen gas from the ventilation end whenever the catheter is operable, andwhereby the switch compresses when the ventilation end is engaged with the ventilation tube communicating with the console to prevent the catheter from operating. 9. The sensor of claim 8 wherein the compression switch is on an outer circumference of the ventilation end. 10. The sensor of claim 8, further comprising: an endotracheal end for engaging an endotracheal tube adaptor; anda compression switch on a circumference of the endotracheal end, the switch communicatively connected to the console,whereby, when the sensor is connected to the endotracheal tube adapter at the endotracheal end, the compression switch on the circumference of the ventilation end actuates and communicates to the console to allow the catheter to operate. 11. The sensor of claim 10 wherein the compression switch is on an inner circumference of the endotracheal end. 12. A cryotherapy system, comprising: a sensor;a console communicatively connected to the sensor; anda cryospray catheter communicatively connected to the console, the catheter configured to deliver cryogen gas within a body of a patient,whereby the system is configured to ensure that egress of cryogen gas from the sensor is possible whenever the catheter is operable. 13. The system of claim 12, wherein the sensor further comprises: a gas inlet at a patient side of the sensor that receives cryogen gas vented from the patient's body; anda gas outlet at an atmosphere side of the sensor that vents cryogen gas from the sensor to the atmosphere. 14. The system of claim 13 further comprising a flexure point that deflects upon attachment of a ventilator tube to the gas outlet; and wherein the connection comprises a switch that is actuated upon deflection of the flexure point to convey a signal along the connection to the console preventing the catheter from operating. 15. The system of claim 13 wherein: the gas outlet is configured to engage with a ventilator tube; andthe connection comprises an air pressure port having a first end for connection to a source of air, and a pressure relief opening on the gas outlet at a second end of the port,whereby the pressure relief opening is at least partially covered by the ventilator tube when the ventilator tube is engaged with the gas outlet, creating a threshold air pressure in the port that is measurable at the console to prevent the catheter from operating. 16. The system of claim 13 further comprising a manual vent valve at the gas outlet that communicates with the atmosphere at the gas outlet, and wherein a valve position corresponding to the valve being open or closed is communicated via the connection to the console to allow the catheter to respectively operate or not operate. 17. The system of claim 13, wherein: the gas inlet of the sensor is configured to mount to a ventilator tube inlet of an endotracheal tube adapter; the gas outlet includes a venting aperture that is configured to not engage a ventilator tube; and the sensor includes a compression switch that detects through compression of the compression switch when the gas inlet is mounted to the endotracheal tube adapter; andwherein the connection when the switch is compressed signals the console to allow operation of the cryospray catheter. 18. The system of claim 13, wherein the connection between the sensor and the console comprises a sensor wire that runs through an interface concentrically disposed onto a shaft of the catheter. 19. The system of claim 18, further comprising a sensor wire retention clip concentrically disposed onto the shaft of the catheter to which the sensor wire may be removably clipped. 20. The system of claim 12, wherein: the sensor comprises a valve in fluid communication with the atmosphere; andthe console includes a linear actuator that is communicatively connected to the valve via a push-pull cable,whereby the linear actuator actuates the push-pull cable to open the valve when the catheter is operable.
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