Use of focused ultrasound for vascular sealing
First Claim
Patent Images
1. A method for sealing a vascular opening in a patient'"'"'s body, comprising:
- a) performing at least one catheterization procedure on a patient whereby the opening is created;
b) identifying a treatment zone to which ultrasonic energy should be applied to close the vascular opening;
c) positioning an ultrasonic transducer applicator, comprising at least one ultrasound radiating surface, adjacent the zone determined in step (b);
d) emitting a therapeutic ultrasound beam from the at least one radiating surface onto the treatment zone;
e) administering a sufficient therapeutic ultrasonic energy to the treatment zone to seal the vascular opening created in step (a).
3 Assignments
0 Petitions
Accused Products
Abstract
A method and system for locating a vascular opening and therapeutically sealing the wound with high intensity focused ultrasound (HIFU) is disclosed. A control unit (6) coupled to an applicator unit includes a processor (74) that automates the disclosed procedure, controlling various parameters of the diagnostic and therapeutic modes, including the intensity and duration of the ultrasonic energy emitted by the applicator unit. The disclosed method and system is and then discarded, is slipped over the particularly applicable to sealing a puncture made inserting a catheter during an interventional cardiovascular procedure.
-
Citations
48 Claims
-
1. A method for sealing a vascular opening in a patient'"'"'s body, comprising:
-
a) performing at least one catheterization procedure on a patient whereby the opening is created;
b) identifying a treatment zone to which ultrasonic energy should be applied to close the vascular opening;
c) positioning an ultrasonic transducer applicator, comprising at least one ultrasound radiating surface, adjacent the zone determined in step (b);
d) emitting a therapeutic ultrasound beam from the at least one radiating surface onto the treatment zone;
e) administering a sufficient therapeutic ultrasonic energy to the treatment zone to seal the vascular opening created in step (a). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 47, 48)
(a) generating an imaging ultrasonic beam, said imaging ultrasonic beam being transmitted proximate an expected location for the opening; (b) receiving a reflection of the imaging ultrasonic beam and in response producing a corresponding output signal; and
(c) processing the output signal to determine a location of the vascular opening and an appropriate treatment zone.
-
-
11. The method of claim 10, further comprising the step of providing a visual indication of at least a portion of the vascular opening.
-
12. The method of claim 10, further comprising the step of providing a visual indication of at least a portion of the treatment zone.
-
13. The method of claim 11 or 12, wherein the ultrasonic transducer applicator comprises a common array of transducers configured to emit ultrasound energy suitable for both imaging and therapeutic ultrasound applications.
-
14. The method of claim 13, wherein the visual indication comprises an image.
-
15. The method of claim 14, further comprising the step of providing a visual indication member that extends from outside the patient into the vascular opening.
-
16. The method of claim 15, wherein the visual indication comprises en image of the visual indication member inserted into the vessel through the opening.
-
17. The method of claim 16, further comprising the step of estimating the location of the vessel puncture based on a disposition of a visual indication member in the vessel opening.
-
18. The method of claim 17, wherein the ultrasound energy administered to the treatment zone is high intensity focused ultrasound (HIFU) energy.
-
19. The method of claim 18, wherein the treatment zone is located on a femoral, brachial or radial artery.
-
20. The method of claim 19, wherein tho imaging and therapeutic ultrasound beams are transcutaneously applied.
-
21. The method of claim 20, wherein the ultrasonic applicator, at any given time, is moveable in a plurality of directions.
-
22. The method of claim 10, further comprising the step of interrupting the administration of the ultrasonic energy to generate a second imaging ultrasound beam to confirm that the ultrasonic energy is being directed to the treatment zone.
-
23. The method of claim 21, further comprising the step of interrupting the administration of the ultrasonic energy to generate a second imaging ultrasound beam to confirm that the ultrasonic energy is being directed to the treatment zone.
-
24. The method of claim 10, further comprising the step of applying a compressive force to the treatment zone to promote hemostasis of the vascular opening.
-
25. The method of claim 21, further comprising the step of applying a compressive force to the treatment zone to promote hemostasis of the vascular opening.
-
47. The method of claim 1, 10, 26 or 34 further comprising the step of interposing a sterile barrier between the transducer applicator and the vascular opening.
-
48. The method of claim 1, 10, 26 or 34 further comprising the step of interposing an acoustic couplant between the transducer applicator and the vascular opening.
-
26. A method for sealing a vascular opening in a patient'"'"'s body, comprising:
-
a) identifying a treatment zone to which ultrasonic energy should be applied to close the vascular opening;
b) positioning an ultrasonic transducer applicator, comprising at least one ultrasound radiating surface, adjacent the zone determined in step (a);
c) applying a compressive force to the treatment zone;
d) emitting a therapeutic ultrasound beam from the at least one radiating surface onto the treatment zone; and
e) administering a sufficient therapeutic ultrasonic energy to the treatment zone to seal the vascular opening. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
(a) generating an imaging ultrasonic beam, said imaging ultrasonic beam being transmitted proximate an expected location for the opening;
(b) receiving a reflection of the imaging ultrasonic beam and in response producing a corresponding output signal; and
(c) processing the output signal to determine a location of the vascular opening and an appropriate treatment zone.
-
-
35. The method of claim 34, further comprising the step of providing a visual image of at least a portion of the vascular opening.
-
36. The method of claim 34, further comprising the step of providing a visual image of at least a portion of the treatment zone.
-
37. The method of claim 35 or 36, wherein the ultrasonic transducer applicator comprises a common array of transducers configured to emit ultrasound energy suitable for both imaging and therapeutic ultrasound applications.
-
38. The method of claim 37, further comprising the step of providing a visual indication member that extends from outside the patient into the vascular opening.
-
39. The method of claim 38, wherein the visual indication comprises an image of the visual indication member inserted into the vessel through the opening.
-
40. The method of claim 39, further comprising the step of estimating the location of the vessel puncture based on a disposition of a visual indication member in the vessel opening.
-
41. The method of claim 40, wherein the ultrasound energy administered to the treatment zone is high intensity focused ultrasound (HIFU) energy.
-
42. The method of claim 31, wherein the treatment zone is located on a femoral, brachial or radial artery.
-
43. The method of claim 42, wherein the imaging and therapeutic ultrasound beams are transcutaneously applied.
-
44. The method of claim 32, wherein the ultrasonic applicator, at any given time, is moveable in a plurality of directions.
-
45. The method of claim 32, further comprising the step of interrupting the administration of the ultrasonic energy to generate a second imaging ultrasound beam to confirm that the ultrasonic energy is being directed to the treatment zone.
-
46. The method of claim 45, further comprising the step of interrupting the administration of the ultrasonic energy to generate a second imaging ultrasound beam to confirm that the ultrasonic energy is being directed to the treatment zone.
Specification