Nova Patents
EP1237487A1

Ultrasonic medical device

Abstract

This record has no abstract on file.

Term

Term ended

Projected expiry passed 4 December 2020, 5.8 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

17 claims: 5 independent, 12 dependent

  1. 1
    Claims of equivalent WO 0141655 A1 WHAT IS CLAIMED IS:1. A medical treatment device for removing microbubbles and/or microparticles from a patient's bloodstream, which device comprises transducer means for association with the exterior surface of the posterior side of the aorta in the general region of the transverse sinus, means for powering said transducer means to generate ultrasonic waves that are directed toward the anterior side of the aorta, needle vent means for insertion into the anterior side of the aorta downstream of the transverse sinus, and means for removing blood and microbubbles and/or microparticles through said needle vent means .
  2. 7
    A medical treatment device for preventing microbubbles and/or microparticles from entering the neck vessels of a patient comprising collar means for association with the exterior of the neck of a patent undergoing surgery, which collar means contains multiple transducers in selected locations focused to direct ultrasonic waves downward and inward at both great origins of the neck vessels at the arch of the aorta, and means for powering such transducers so as to send ultrasonic waves that cause microbubbles and/or microparticles to deviate within the flowing bloodstream so as not to enter said great origins and instead travel to the lower part of the patient's body.
  3. 9
    A separating device for removing microbubbles and/or microparticles from a stream of liquid, which device comprises annular transducer means for surrounding a conduit within which a stream of liquid is flowing, a sidestream-removal tube unit for location downstream of said transducer means and axially within said conduit which is operable to withdraw the central portion of said flowing stream of liquid, and power means for operating said transducer means to direct ultrasonic energy radially inward about 360° so as to concentrate microbubbles and/or microparticles centrally in a flowing stream of liquid where they can be withdrawn through said tube unit .
  4. 11
    A method for treating a patient undergoing heart surgery so as to remove microbubbles and/or microparticles from the blood of the patient, which method comprises the steps of:focusing ultrasonic waves into the left ventricle and/or the ascending aorta of the patient to direct microbubbles and/or microparticles so they will reach a region along the anterior wall of the ascending aorta , and withdrawing said microbubbles and/or microparticles from the blood stream through vent means which is extended through the anterior wall of the aorta.
  5. 17
    A separation device for removing microbubbles and/or microparticles from a flowing stream, which device comprises conduit means for carrying a liquid stream containing microbubbles and/or microparticles, which conduit means includes a main inlet, a main outlet and a side outlet, co (U rr S t. rt O 3 CO Mi μ- 3 rt hh Ml H- ft ) a tr tr tr t) tr M H- m H 0 tl 0> O O 3 H- Q< H fD fD H fD O H- O n fD l_l. Ό O M p. O H tι ft ) o (U H p. 3 OJ i-l O s:M- ≤ c fD o H tl o rt rt K {U μ- Pi P- H tr iQ H- H fD P. iQ CO tr 3 CO H- tl tJ fD fD fD tr tl oo tr fD d (U (U O Ml Ό Pi iQ Mi rt O H . rr H- P. tf O H- y μ- O fcf fD 1. co 3 tr 3 rt tr CO P. t H (U CO fD (D H- H- ft ) fD fD rt tr H- H rt rt O H H- P. tl tr CO Mi (U PJ O O fD fD μ- H H- tl ft ) CO CD o rt ■ g μ- 01 H- O tl ^ o JU tl ft ) 3 IQ P. CO ft ) tr o H- J Mi P. CO a JD (D fD 3 IQ rj P- H- H- a fD € P. tl H- H- 3 O μ- CO rr 3 H- P. co fD CD P- tr O P. O i Hi <^ rt 3 P. O π> rr fD •O tr rt ►i 3 H rt H- ft μ- O μ- ft ) H- Ό ft ) fD 0 o o o n M P. fD O μ- tl o o Hi 3 O O H H •o o Λ iQ O fD H CO tl c: o JU H C H- CO V O μ- μ- P: 0 ) O H o ft ) rr H rt tl 3 3 fD O 0 ) P- μ- 3 μ- tr 5- h H H- H- 3 fD M IQ H- 3 H- c P- fD P. 3 O fD p. o o IQ fD n J rr O O tl P. iQ tl tl rt Pi rr O fD rr ft> C tr 3 (U PJ O C fD iQ H « 3 H O : ft ) iQ CD H- tr fD C- H- H- 3 fu fD O fD ft ) H- CO O tr n CO ω P. CO rt fD H ft) rt M. P ) n O 3 O H- O H n H- O JU 3 o. H fD ft ) tl o rr CD o iQ rt tι CO O tl μ- H- rt l-h fD O O μ- co O ■ g O W ft ) tl fD ^ H c t- 1 ft tι rt O ft) μ- m D H- rr < iQ CO o CO rr H- μ- iQ rt {_ H Pi ft ) O t- J H- p. 0 fD J 3 (D M 3 O rt rr M O <. Pi 3 IQ tl Ό (D • § U3 Mi 3 μ- CO H- n H- rt fD H P. ^ PJ rt H- μ- CD O μ- fD i-j ft) 0 o o (U PJ H- P. rt i. rt pi & rr U3 ft ) c: 0 < fD rr fu fD O μ- fD CD rr fD Ml H- rr CO H- H tr rt tl p. fD rt {1 ) CO O tr P< 3 3 H rt H- H- rt H- {U P- tr rt O d fD fD o fD h 0 ) rt o fD < tl μ- rr tr ft ) € H rt H rt μ- tl H fD s;ft ) μ- tl rt M fD 3 -0 . o fD tι CO H C μ- rt H (D O O 3 iQ o rr •O rt O ft) fD rt O Mi fD Ό tr rt rr P. fD H
Independent claims5