Minimally-invasive smart devices

• US 7,611,482 B2
• Filed: 11/21/2002
• Issued: 11/03/2009
• Est. Priority Date: 11/21/2002
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Tung, Henry, Palasis, Maria, Naimark, Wendy
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Stigell; Theodore J
• Application Number:
  US10/300,881
• Publication Number:
  US 20040102733A1
• Time in Patent Office: 2,539 Days
• Field of Search: 604 65- 67, 604/100.01, 60410306-10308, 60410301-10302, 604/96.01, 604/97, 604/97.01, 604/890.1, 604/891.1, 604/93.01, 604 9901- 9904, 600/488, 600/466, 606/14, 606/41, 606/52, 606/76, 606/205, 606/7, 606/13, 606 27- 29, 606/32, 606191-192, 606/194
• US Class Current: 604/65
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2562/028 Microscale sensors, e.g. electromechanical sensors [MEMS]
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/6885 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61M 2025/0002 with a pressure sensor at the distal end
• CPC Class Codes: A61M 2025/0003 having an additional lumen transmitting fluid pressure to the outside for measurement
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3368 Temperature

Abstract

There is provided a minimally-invasive smart device which can detect environmental conditions in the vicinity of a target site within a patient'"'"'s body and autonomously determine whether the medical device on the distal end of the instrument should be activated to perform, or inhibited from performing, a desired minimally-invasive medical procedure. The smart device includes a medical device affixed to the distal end of a lumen, at least one environmental condition sensor adapted to detect an environmental condition adjacent to the medical device, and at least one medical device actuator which responds to signals from an environmental condition sensor to either cause the medical device to perform the desired medical procedure or to inhibit operation of the medical device actuator.

Claims

1. A medical device instrument comprising:

an autonomous minimally invasive medical device on a distal portion of the medical device instrument, the medical device comprising;

a first environmental condition sensor carried by the minimally invasive medical device adapted to detect a first environmental condition at a target site in the body of a patient adjacent to the medical device and adapted to transmit a first signal based on the first environmental condition; and

a second environmental condition sensor carried by the minimally invasive medical device adapted to detect a second environmental condition at the target site in the body of the patient adjacent to the medical device and adapted to transmit a second signal based on the second environmental condition; and

a plurality of actuators comprising;

a first actuator carried by a first portion of the medical device adapted to receive the first signal and to actuate to deliver therapy to the patient at the target site if the first signal meets a first predetermined condition and to inhibit actuation if the first signal does not meet the first predetermined condition;

a second actuator carried by a second portion of the medical device adapted to receive the second signal and to actuate to deliver therapy to the patient at the target site if the second signal meets a second predetermined condition and to inhibit actuation if the second signal does not meet the second predetermined condition,

wherein the plurality of environmental condition sensors and the plurality of actuators cooperate to autonomously determine whether to actuate the first actuator and the second actuator of the medical device, and wherein the first signal, the second signal, or both is a mechanical signal.

2. The medical device instrument of claim 1, wherein the medical device instrument is one of an infusion catheter and an injection catheter.

3. The medical device instrument of claim 1, wherein the first actuator, the second actuator, or both is one of a valve and a needle deploying device.

4. The medical device instrument of claim 1, wherein the medical device instrument is a balloon catheter.

5. The medical device instrument of claim 4, wherein the first actuator permits the balloon to be inflated.

6. The medical device instrument of claim 1, wherein the first environmental condition sensor, the second environmental condition sensor, or both is a mechanical sensor.

7. The medical device instrument of claim 6, wherein the mechanical sensor is a pressure sensor.

8. The medical device instrument of claim 6, wherein the mechanical sensor is a differential pressure sensor.

9. The medical device instrument of claim 6, wherein the at least one mechanical sensor is a pressure-sensitive sensor that has a contact-sensing probe tuned to respond to axial force, transverse force, or both.

10. The medical device instrument of claim 1, wherein the medical device is adapted to be affixed to a distal end of an endoscope during a minimally-invasive medical procedure.

11. The medical device instrument of claim 1, wherein the first and second sensors are different types of sensors.

12. A medical device instrument comprising:

an autonomous minimally invasive medical device on a distal portion of the medical device instrument, the medical device comprising;

at least one environmental condition sensor carried by the medical device adapted to detect an environmental condition adjacent to the medical device and adapted to transmit a signal based on the environmental condition; and

at least one needle-deploying actuator carried by the medical device adapted to receive the signal transmitted from the sensor and deploy a needle from the medical device,

wherein the at least one environmental condition sensor and the at least one needle-deploying actuator cooperate to autonomously determine whether to deploy a needle from the medical device, and

wherein the signal is a mechanical signal.

13. The medical device instrument of claim 12, wherein the medical device instrument is one of an infusion catheter and an injection catheter.

14. The medical device instrument of claim 12, wherein the at least one environmental condition sensor is a mechanical sensor.

15. The medical device instrument of claim 14, wherein the mechanical sensor is a pressure sensor.

16. The medical device instrument of claim 14, wherein the mechanical sensor is a differential pressure sensor.

17. The medical device instrument of claim 14, wherein the at least one mechanical sensor is a pressure-sensitive sensor that has a contact-sensing probe tuned to respond to axial force, transverse force, or both.

18. An autonomous minimally invasive balloon catheter comprising:

at least one environmental condition sensor carried on a balloon of the balloon catheter adapted to detect an environmental condition adjacent to the balloon catheter and adapted to transmit a signal based on the environmental condition; and

at least one actuator carried on a balloon of the balloon catheter adapted to receive the signal transmitted from the sensor to permit the inflation of the balloon,

wherein the at least one environmental condition sensor and the at least one actuator cooperate to autonomously determine whether to permit inflation of the balloon,

wherein the sensor and actuator are physically linked, and

wherein the signal is a mechanical signal.

19. The balloon catheter of claim 18, wherein the at least one environmental condition sensor is a mechanical sensor.

20. The balloon catheter of claim 19, wherein the mechanical sensor is a pressure sensor.

21. The balloon catheter of claim 19, wherein the mechanical sensor is a differential pressure sensor.

22. The balloon catheter of claim 19, wherein the at least one mechanical sensor is a pressure-sensitive sensor that has a contact-sensing probe tuned to respond to axial force, transverse force, or both.

23. The balloon catheter of claim 18, further comprising means for inhibiting activation during transit.