Surgical trocar with feedback

• US 20090234273A1
• Filed: 03/06/2009
• Published: 09/17/2009
• Est. Priority Date: 03/17/2008
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Ostrovsky, Isaac, Shukhat, Victor, Intoccia, Alfred
• Application Number:
  US12/382,061
• Publication Number:
  US 20090234273A1
• Time in Patent Office: Days
• US Class Current: 604/22
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3476 Powered trocars, e.g. electrosurgical cutting, lasers, powered knives
• CPC Class Codes: A61B 2017/3454 Details of tips

Abstract

A medical device is disclosed. The medical device includes a handle configured to be grasped by a human hand, and an elongate obturator coupled to the handle. The obturator includes a proximal end proximate the handle and a distal end extending away from the handle. The distal end of the obturator includes a tip configured to pierce a body. The medical device also includes a vibration generating device coupled to the obturator. The vibration generating device is configured to induce a vibration having a frequency and an amplitude on the obturator.

Claims

1. A medical device, comprising:

a handle configured to be grasped by a human hand;

an elongate obturator coupled to the handle, the obturator including a proximal end proximate the handle and a distal end extending away from the handle, the distal end of the obturator including a tip configured to pierce a body; and

a vibration generating device coupled to the obturator, the vibration generating device being configured to induce a vibration having a frequency and an amplitude on the obturator.

2. The medical device of claim 1, wherein the vibration generating device is embedded in the medical device.

3. The medical device of claim 1, wherein the obturator is configured to change the amplitude of vibration of the obturator as the obturator pierces the body.

4. The medical device of claim 3, wherein the medical device is further configured to transmit the vibration to the handle.

5. The medical device of claim 3, wherein the obturator is configured to vary the amplitude of vibration as a function of a density of a layer of tissue that the obturator pierces through.

6. The medical device of claim 1, wherein the proximal end of the obturator extends into the handle.

7. The medical device of claim 1, wherein the vibration generating device is physically coupled to the obturator.

8. The medical device of claim 1, wherein the vibration generating device includes at least one of an electric motor and a solenoid.

9. The medical device of claim 1, further including a sensor coupled to the obturator, wherein the sensor is configured to detect a vibration of the obturator.

10. The medical device of claim 9, wherein the sensor includes one of a pressure sensor and an accelerometer.

11. The medical device of claim 9, wherein the sensor transmits signals indicative of the detected vibrations to a signal processing device.

12. The medical device of claim 11, wherein the signal processing device is embedded in the medical device.

13. The medical device of claim 12, wherein the signal processing device is embedded in the handle.

14. The medical device of claim 11, wherein the signal processing device is a standalone device separate from the medical device.

15. The medical device of claim 11, wherein the sensor wirelessly transmits the signals to the signal processing device.

16. The medical device of claim 11, wherein the signal processing device is configured to indicate information related to the position of the obturator within the body based on the signal.

17. The medical device of claim 16, wherein the information includes the type of tissue that the obturator pierces through.

18. The medical device of claim 16, wherein the information is indicated using a visual or an audio signal.

19. The medical device of claim 11, wherein the signal processing device is configured to indicate the proximity of the obturator to a bone in the body as the obturator pierces the body.

20. The medical device of claim 11, wherein the signal processing device is configured to indicate a contact of the obturator with a bone in the body.

21. The medical device of claim 1, further including a vibration isolation bushing between the obturator and the handle.

22. A method of using a medical device to create a puncture in a body comprising:

grasping a handle of the medical device with a hand, the handle being coupled to an elongate obturator;

activating a vibration generating device coupled to the obturator, the vibration generating device inducing a vibration having a frequency and an amplitude on the obturator;

piercing the body with the obturator;

detecting a vibration of the obturator during the piercing; and

controlling the piercing of the body based on the detected vibration of the obturator.

23. The method of claim 22, wherein controlling the piercing further includes detecting a variation of the amplitude of the vibration as the obturator pierces into the body.

24. The method of claim 22, wherein controlling the piercing further includes detecting a frequency of vibration induced in the obturator.

25. The method of claim 22, wherein controlling the piercing further includes identifying the type of tissue the obturator is piercing through based on the vibration of the obturator.

26. The method of claim 22, wherein controlling the piercing further includes detecting contact of the obturator with a bone in the body based on the vibration of the obturator.

27. The method of claim 22, wherein detecting the vibration of the obturator includes detecting the vibration on the hand.

28. The method of claim 22, wherein detecting the vibration of the obturator includes detecting the vibration using a sensor coupled to the medical device.

29. The method of claim 28, wherein the sensor is coupled to the obturator.

30. The method of claim 28, wherein detecting the vibration using a sensor further includes transmitting a signal representative of the vibration to a signal processing device.

31. The method of claim 30, wherein the signal processing device is configured to distinguish between a type of tissue that the obturator is piercing through based on the signal.

32. The method of claim 30, wherein the signal processing device is configured to identify proximity of the obturator with a bone in the body based on the signal.

33. The method of claim 30, wherein the signal processing device is configured to identify a contact of the obturator with a bone in the body based on the signal.

34. The method of claim 33, wherein contact of the obturator with a bone is detected based on detecting a frequency of a vibration induced in the obturator due to the contact.

35. The method of claim 30, wherein the sensor transmits the signal to the signal processing device wirelessly.

36. The method of claim 30, wherein the signal processing device is configured to indicate information relating to a position of the obturator within the body based on the signal.

37. The method of claim 36, wherein the information is indicated using an audio or a visual signal.

38. The method of claim 22, wherein the vibration generating device is embedded in the medical device.

39. The method of claim 38, wherein the vibration generating device is embedded in the handle of the medical device.