Medical fluid injection apparatus and method with detachable patch and monitoring

1. A method for measuring a health or physiological parameter from a subject, comprising:

(a) providing (i) a patch comprising a first housing comprising a sensor, and (ii) an injector comprising a second housing, wherein said second housing encases a cannula, a fluid flow path, and a reservoir comprising a substance, wherein said cannula is in fluid communication with said fluid flow path, and wherein said fluid flow path is in fluid communication with said reservoir, wherein said first housing and said second housing are in a locked configuration such that said patch remains attached to said injector;

(b) securing said patch to a body of said subject;

(c) with said patch secured to said body of said subject, directing said cannula through an opening and into said body of said subject;

(d) subsequent to (c), (i) directing said substance from said reservoir to said fluid flow path, and (ii) directing said substance from said fluid flow path into said subject through said cannula, wherein subsequent to directing said substance into said subject, said first housing and said second housing are in an unlocked configuration such that said injector is removable from said patch;

(e) removing said injector from said patch to leave said patch secured to said body of said subject; and

(f) subsequent to (e), using said sensor to (i) measure said health or physiological parameter from said subject, and (ii) provide one or more outputs corresponding to said health or physiological parameter from said subject.

2. The method of claim 1 , further comprising using a pump integrated with said cannula to direct said substance from said fluid flow path into said subject through said cannula.

3. The method of claim 1 , wherein in (c), said cannula extends towards said body of said subject.

4. The method of claim 1 , wherein said patch comprises a pierceable membrane, wherein said pierceable membrane is pierced by said cannula to generate said opening.

5. The method of claim 4 , wherein said pierceable membrane comprises an absorbent material.

6. The method of claim 1 , wherein said reservoir is secured to said injector.

7. The method of claim 6 , wherein said reservoir is removable from said injector.

8. The method of claim 6 , wherein said reservoir is part of said injector.

9. The method of claim 1 , wherein said substance is a medicament.

10. The method of claim 9 , wherein said medicament is for treating one or more diseases selected from the group of a cardiovascular disease, musculoskeletal disease, gastrointestinal disease, dermatological disease, immunological disease, ophthalmological disease, hematological disease, neurological disease, cancer, endocrinological disease, metabolic disease, and respiratory disease.

11. The method of claim 1 , wherein said reservoir contains a formulation comprising said substance.

12. The method of claim 1 , wherein said patch comprises a communication interface for transmitting data corresponding to said health or physiological parameter to an electronic device in communication with said communication interface.

13. The method of claim 12 , wherein said communication interface comprises a wireless communication interface.

14. The method of claim 13 , wherein said wireless communication interface is a near field communication interface, a Bluetooth interface, a WiFi interface, or an optical wireless interface.

15. The method of claim 12 , wherein said communication interface comprises a wired communication interface.

16. The method of claim 1 , wherein said sensor is selected from the group consisting of a conductivity sensor, impedance sensor, capacitance sensor, charge sensor, humidity sensor, temperature sensor, heart rate sensor, interstitial pressure sensor, resistance sensor, distension sensor, acoustic sensor, vibration sensor, blood pressure sensor, color sensor, chemical sensor, and a substance-tracking sensor.

17. The method of claim 1 , wherein said patch or said injector comprises an additional sensor different from said sensor.

18. The method of claim 17 , wherein said patch comprises said additional sensor.

19. The method of claim 17 , wherein said injector comprises said additional sensor.

20. The method of claim 1 , further comprising using said sensor to measure said health or physiological parameter from said subject prior to directing said substance from said fluid flow path into said subject through said cannula.

21. The method of claim 1 , wherein said patch further comprises one or more transducers configured to generate an output signal, wherein said output signal comprises a vibration signal, audio signal, electrical signal, or visual signal, or a combination thereof.

22. The method of claim 1 , wherein said patch measures a plurality of health or physiologic parameters, including said health or physiologic parameter.

23. The method of claim 1 , wherein said patch receives data from said injector.

24. The method of claim 1 , wherein said injector is an autoinjector.

25. The method of claim 1 , wherein said one or more outputs comprises a signal selected from the group consisting of an audio signal, a vibration signal, an electrical signal, and a visual signal.

26. The method of claim 1 , wherein said patch comprises said opening and (c) comprises directing said cannula through said opening of said patch and into said body of said subject.

27. The method of claim 1 , wherein said removing of (e) comprises directing said injector away from said body of said subject.

28. The method of claim 1 , wherein in (d) said substance is directed into said subject while said injector is secured to said patch at a first location, wherein in (f) said patch is secured to said body of said subject at a second location, and wherein said first location and said second location are substantially the same.