Ultrasound system and methods utilizing same

• US 6,206,843 B1
• Filed: 01/28/1999
• Issued: 03/27/2001
• Est. Priority Date: 01/28/1999
• Status: Expired due to Fees

• Current Assignee: Ultra Lube, Inc.
• Original Assignee: Ultra Lube, Inc.
• Inventors: Elman, Dmitry, Hassoon, Salah, Shalhevet, David, Segal, Emanuel, Iger, Yoni
• Primary Examiner(s): Lateef, Marvin M.
• Assistant Examiner(s): MANTIS MERCADER, ELENI M
• Application Number:
  US09/239,153
• Time in Patent Office: 789 Days
• Field of Search: 600/437, 600/439, 600/472, 600/369, 601/2
• US Class Current: 601/2
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/2251 characterised by coupling elements between the apparatus, e.g. shock wave apparatus or locating means, and the patient, e.g. details of bags, pressure control of bag on patient
• CPC Class Codes: A61B 2017/00756 Port wine stains
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• 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

The present invention concerns an ultrasound system for the production of an acoustic wave pressure on a desired organ. The present invention further concerns a method for closing a liquid containing vessel, such as a blood vessel, by applying a first pulse of acoustic pressure for emptying the vessel of liquid, and than applying a second pulse for adhering the walls of the vessel to each other.

Claims

1. An ultrasound system for the creation of an acoustic pressure wave for providing pressure on a desired location of an organ comprising:

(I) at least one ultrasound generating element for producing a focused ultrasonic beam; and

(II) at least one container having side walls and holding a liquid medium coupled at one end to the the ultrasound generating element for propagating the focused ultrasonic beam from the ultrasound generating element through a distal uncoupled end to the desired location of an organ, said container having a width such that the ultrasonic beam propagates therein without bouncing on the side walls of the container; and

a length such that the focused ultrasonic beam'"'"'s focal point is within the container.

2. A system according to claim 1, wherein the organ is selected from the group consisting of blood vessels, glands, ducts, tubes or vessels of the reproduction tract, nerves and muscles.

3. An ultrasound system, according to claim 1, wherein the at least one ultrasound generating, element comprises at least one transducer heaving a curved irradiation zone.

4. An ultrasound system according to claim 3, wherein the container has a conical shape with tapering side walls converging at the distal, uncoupled end.

5. An ultrasound system according to claim 3, wherein the distance between the ultrasound generating element and the distal part of the container is adjustable.

6. A system according to claim 5, wherein the transducer is slidably engagable inside an outer sleeve, which sleeve also holds container;

said sleeve being in contact with the desired location of administration of the ultrasonic administration, and said distance is adjustable by sliding the transducer inside the sleeve.

7. An ultrasound system according to claim 1, wherein the ultrasound generating element comprises focusing means.

8. An ultrasound system according to claim 7, wherein the focusing means are acoustic lens.

9. An ultrasound system according to claim 8, wherein the container has a conical shape with tapering side walls converging at the distal, uncoupled end.

10. An ultrasound system according to claim 9, wherein the distal uncoupled end has an opening.

11. An ultrasound according to claim 9, wherein the distal uncoupled end is closed by material having impedance similar to that of the organ to which the beam is administered.

12. An ultrasound system according to claim 1 wherein the container has a conical shape and wherein the side walls are tapering side wall converging at the distal, uncoupled end.

13. An ultrasound according to claim 12, wherein the distal uncoupled end is closed by material having impedance similar to that of the desired location of the organ to which the focused ultrasonic beam is administered.

14. An ultrasound system according to claim 12, wherein the distance between the ultrasound generating element and the distal part of the container is adjustable.

15. A system according to claim 14, wherein the transducer is slidably engagable inside an outer sleeve, which sleeve also holds container;

said sleeve being in contact with the desired location of administration of the ultrasonic administration, and said distance is adjustable by sliding the transducer inside the sleeve.

16. An ultrasound system according to claim 1, wherein the distal uncoupled end has an opening.

17. An ultrasound system according to claim 1, wherein the distance between the ultrasound generating element and the distal uncoupled of the container is adjustable.

18. A system according to claim 17, wherein the ultrasound generating element is slidably engageable inside an outer sleeve, which sleeve also holds the container;

said sleeve adapted to be in contact with a desired location of administration, and said distance is adjustable by sliding the ultrasound generating element inside the sleeve.

19. A method for blocking a liquid containing vessel, at a desired portion thereof, in a treated subject, comprising the steps of:

i) applying on the vessel at said desired portion a first ultrasonic pulse to produce an acoustic pressure wave having parameters sufficient for pushing liquid out of the vessel at said desired portion substantially without damaging the walls of the vessel; and

iv) within a time period before liquid returns to the emptied portion of the vessel, applying a second ultrasonic pulse, being a focused ultrasonic wave with an acoustic focal point at a said desired portion, causing local elevation of temperature at said portion to adhere walls of the vessel at said portion with one another.

20. A method according to claim 19, wherein the liquid containing vessel is a blood vessel.