Vibration method for clearing acute arterial thrombotic occlusions in the emergency treatment of heart attack and stroke

• US 8,870,796 B2
• Filed: 04/05/2010
• Issued: 10/28/2014
• Est. Priority Date: 09/04/2003
• Status: Expired due to Fees

• Current Assignee: Parallel Biotechnologies, LLP
• Original Assignee: Ahof Biophysical Systems Inc.
• Inventors: Hoffmann, Andrew Kenneth
• Primary Examiner(s): Yu, Justine
• Assistant Examiner(s): MILLER, CHRISTOPHER E
• Application Number:
  US12/798,437
• Publication Number:
  US 20100222723A1
• Time in Patent Office: 1,667 Days
• Field of Search: 601/2, 601 46- 48, 601 79- 80, 601/98, 601/107
• US Class Current: 601/47
• CPC Class Codes: A61B 17/22004 using mechanical vibrations, e.g. ultrasonic shock waves A61B17/225 takes precedence
• CPC Class Codes: A61B 8/08 Detecting organic movements or changes, e.g. tumours, cysts, swellings A61B8/02 - A61B8/06 take precedence
• CPC Class Codes: A61B 8/0883 for diagnosis of the heart
• CPC Class Codes: A61B 8/4455 Features of the external shape of the probe, e.g. ergonomic aspects
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092

Abstract

An emergency method of using localized mechanical percussion for enhancing clearance of potentially life threatening acute thrombotic arterial obstructions blocking blood flow to vital internal organs such as the heart or brain of a patient, employing the application of non-invasive localized low frequency mechanical percussion at a frequency between 1 Hz-1000 Hz and a stroke or displacement amplitude in the range of 0.1-10 mm upon a targeted external body surface deemed generally proximate such acute thrombotic arterial obstruction, whereby the percussion accelerates the emergency clearance of the acute thrombotic arterial obstruction in restoration of blood flow to the vital internal organ. Preferred methods for percussion delivery to the chest wall/upper back or head/neck of a patient are described for use in treatment of heart attack or acute ischemic stroke respectively.

Claims

1. A method of using a percussion device operable to deliver non-invasively imparted mechanical percussion localized to a targeted body part for enhancing clearance of an acute thrombotic cerebral arterial occlusion blocking blood flow to the brain of a patient, comprising the steps of:

a) obtaining a diagnosis of acute ischemic stroke in said patient, and then,

b) applying non-invasive localized low frequency mechanical percussion at a frequency between 1 Hz-1000 Hz and a stroke or displacement amplitude in the range of 0.1-10 mm from said percussion device targeted remote from said acute thrombotic cerebral arterial obstruction upon a neck region of said patient,

whereby said non-invasive localized low frequency mechanical percussion upon said neck region accelerates the clearance of said acute thrombotic cerebral arterial occlusion in restoration of said blood flow to said brain of said patient.

2. The method of claim 1, wherein said percussion device is utilized in treatment of an acute ischemic stroke.

3. The method of claim 2, whereby said step of obtaining a diagnosis of acute ischemic stroke is provided by ultrasonic detection.

4. The method of claim 1, wherein said percussion is applied at a frequency of at least 20 Hz.

5. The method of claim 1, wherein said percussion is applied at a stroke or displacement amplitude of at least 1 mm.

6. The method of claim 1, wherein percussion at said frequency between 1 Hz-1000 Hz and said stroke displacement amplitude in the range of 0.1-10 mm is concurrently applied to the head of said patient.

7. The method of claim 6, whereby percussion is delivered to a temple region of said head of said patient.

8. The method of claim 1, wherein said percussion is applied to at least one of the posterior, posterior-lateral and lateral aspect of said neck region of said patient.

9. The method of claim 1, wherein said percussion is applied over a carotid artery of said patient.

10. The method of claim 1, wherein said percussion is applied at a stroke amplitude in the range of 0.1 mm to 2 mm.

11. The method of claim 1, wherein an emission frequency of said percussion is sweeped across a selected frequency range.

12. The method of claim 1, wherein said percussion is applied proximate the left and right carotid artery.

13. The method of claim 1, wherein said percussion device has an intensity level control.

14. The method of claim 1 whereby said percussion device is applied to said neck region via a pair of percussive contact nodes,

whereby a first contact node is disposed to the anatomic left side of said neck region and a second contact node is disposed to the anatomic right side of said neck region.

15. The method of claim 1 whereby said percussion has a displacement wave-shape comprising at least one of;

sinusoidal, saw tooth, linear, curved and square.

16. The method of claim 1, further comprising the step of administering an antiplatelet to said patient prior to termination of said percussion, whereby said percussion improves the effectiveness of said antiplatelet in treatment of said acute thrombotic cerebral arterial occlusion.

17. The method of claim 1, whereby said percussion device enables delivery of a variety of differing displacement wave-shapes.

18. A method of using a non-invasive low frequency vibrator to assist in clearance of a blood clot within an acutely thrombosed cerebral artery in supply of the brain of a patient, comprising the steps of obtaining a diagnosis of acute ischemic stroke in said patient, and then applying non-invasive, transcutaneous localized mechanical vibration having a frequency between 1 Hz to 1000 Hz and a displacement amplitude in the range of 0.1 mm-10 mm via said vibrator placed upon a targeted external body surface of the neck remote from the location of said acutely thrombosed cerebral artery, whereby said vibration assists clearance of said blood clot within said acutely thrombosed cerebral artery.

19. The method of claim 18, wherein said acutely thrombosed cerebral artery comprises an acute ischemic stroke.

20. The method of claim 19, wherein vibration having said frequency between 1-1000 Hz and said displacement amplitude in the 0.1 mm to 10 mm range is simultaneously applied to a non-invasive body surface of the head of said patient.

21. The method of claim 18, wherein said vibration is applied at a frequency of at least 20 Hz.

22. The method of claim 18, wherein said vibration has a displacement amplitude of at least 1 mm.

23. The method of claim 18, wherein said vibration is applied at a frequency in the 20-15 Hz range.

24. The method of claim 23, wherein the frequency of said vibration is sweeped across a determined frequency range.

25. The method of claim 18, further comprising the step of administering at least one of an antiplatelet and anticoagulant to said patient prior to termination of said vibration, whereby said vibration improves the effectiveness of said at least one of an antiplatelet and anticoagulant.

26. A method for enhancing clearance of a blood clot within an acutely thrombosed cerebral artery in treatment of an acute stroke, comprising the steps of obtaining a diagnosis of an acute ischemic stroke in a patient, and then non-invasively applying sonic vibration at a frequency of less than 1000 Hz and a displacement amplitude of said vibration of at least 0.1 mm to said patient,

whereby said vibration is locally administered to the neck of said patient, and

whereby said vibration applied to said neck assists clearance of said blood clot within said acutely thrombosed cerebral artery in remediation of said acute stroke.

27. The method of claim 26, whereby transcranial ultrasonic imaging delivered via a portable head attachment is employed to determine a diagnosis of acute ischemic stroke, prior to commencement of said vibration.

28. The method of claim 26, wherein said vibration is applied to at least one of the posterior, posterior-lateral and lateral aspect of said neck of said patient.

29. The method of claim 26, wherein said vibration has a displacement amplitude in the range of 0.1 mm to 2 mm.

30. A method for assisting clearance of a blood clot within an acutely thrombosed cerebral artery obstructing blood flow to the brain, comprising the steps of:

a) placing a mechanical vibrator in contact with an external body surface of the neck of a patient having received a diagnosis of acute ischemic stroke and thereby experiencing a blood clot within an acutely thrombosed cerebral artery blocking blood flow to said brain, and

b) applying non-invasive sonic vibration at a frequency of less than 1000 Hz and a displacement amplitude of said vibration in the range of 0.1 mm to 10 mm to said patient during said placement,

whereby the delivered vibration reaches said acutely thrombosed cerebral artery to assist clearance of said blood clot.

31. The method of claim 30, wherein said vibration is applied at a frequency of at least 20 Hz.

32. The method of claim 31, wherein said vibrator is locally placed over a carotid artery.

33. The method of claim 31, wherein said vibration has a displacement amplitude of at least 1 mm, to ensure effective penetration of said vibration.

34. The method of claim 31, wherein said vibration is delivered at a frequency of less than or equal to 150 Hz.

35. A method of using a percussion device operable to deliver non-invasively imparted mechanical percussion localized to a targeted body part for enhancing clearance of an acute thrombotic cerebral arterial occlusion blocking blood flow to the brain of a patient, comprising the steps of

a) obtaining a diagnosis of acute ischemic stroke in said patient, and then,

b) applying non-invasive localized low frequency mechanical percussion at a frequency between 1 Hz-1000 Hz and a stroke or displacement amplitude of at least 0.1 mm from said percussion device targeted remote from said acute thrombotic cerebral arterial obstruction upon a carotid artery of said patient,

whereby said non-invasive localized low frequency mechanical percussion upon said carotid artery accelerates the clearance of said acute thrombotic cerebral arterial occlusion in restoration of said blood flow to said brain of said patient.