ATHERECTOMY METHODS AND APPARATUS
First Claim
Patent Images
1. Apparatus for removing plaque from a blood vessel of a subject, comprising:
- a catheter shaped to define an opening and configured to be placed in the blood vessel;
a pressure source configured to propel a fluid jet through the opening;
a pressure sensor configured to detect a pressure in the blood vessel induced by the jet; and
a control unit configured to steer the jet in response to the detected pressure.
1 Assignment
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Accused Products
Abstract
Apparatus is provided for removing plaque from a blood vessel of a subject, including a catheter shaped to define an opening that is placed in the blood vessel. A pressure source propels a fluid jet through the opening, and a pressure sensor detects a pressure in the blood vessel induced by the jet. A control unit steers the jet in response to the detected pressure. Other embodiments are also described.
129 Citations
199 Claims
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1. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the blood vessel; a pressure source configured to propel a fluid jet through the opening; a pressure sensor configured to detect a pressure in the blood vessel induced by the jet; and a control unit configured to steer the jet in response to the detected pressure. - View Dependent Claims (4, 6, 7, 8, 9, 12, 13, 14, 16, 19, 20, 21, 22, 25, 31, 41, 44, 45, 50)
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2-3. -3. (canceled)
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5. (canceled)
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10-11. -11. (canceled)
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15. (canceled)
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17-18. -18. (canceled)
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23-24. -24. (canceled)
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26-30. -30. (canceled)
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32-40. -40. (canceled)
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42-43. -43. (canceled)
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46-49. -49. (canceled)
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51-59. -59. (canceled)
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60. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the blood vessel; a pressure source configured to propel a fluid jet through the opening; a pressure sensor configured to detect a pressure in the blood vessel induced by the jet; and a control unit configured to modulate a composition of the jet in response to the detected pressure. - View Dependent Claims (61, 62, 66, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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63-65. -65. (canceled)
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67-68. -68. (canceled)
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78. (canceled)
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79. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the blood vessel; a pressure source configured to propel a fluid jet through the opening; a pressure sensor configured to detect a pressure in the blood vessel induced by the jet; and a control unit configured to modulate a non-speed characteristic of the jet in response to the detected pressure. - View Dependent Claims (80, 89)
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81-88. -88. (canceled)
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90-92. -92. (canceled)
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93. A method for treating plaque in a blood vessel of a subject, comprising:
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directing a fluid jet toward the plaque; detecting a pressure induced by the jet in the blood vessel; and steering the jet in response to the detecting.
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94-147. -147. (canceled)
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148. A method for treating plaque in a blood vessel of a subject, comprising:
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directing a fluid jet toward the plaque; detecting a pressure induced by the jet in the blood vessel; and modulating a composition of the jet in response to the detecting.
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149-169. -169. (canceled)
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170. A method for treating plaque in a blood vessel of a subject, comprising:
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directing a fluid jet toward the plaque; detecting a pressure induced by the jet in the blood vessel; and modulating a non-speed characteristic of the jet in response to the detecting.
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171-182. -182. (canceled)
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183. A method for removing plaque from a blood vessel of a subject, comprising:
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driving a jet through an opening of a catheter; and steering the jet toward the plaque using a hydrodynamic surface coupled to the catheter.
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184. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a catheter which is shaped to define an opening and configured to be placed in the blood vessel; a pressure source configured to propel a jet through the opening; and a hydrodynamic surface configured to steer the jet in response to pressure in the blood vessel induced by the jet.
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185. A method for removing plaque from a heart valve of a subject, comprising:
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directing a jet toward the plaque; detecting a pressure in a vicinity of the heart valve induced by the jet; and steering the jet in response to the detecting.
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186. (canceled)
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187. Apparatus for removing plaque from a heart valve of a heart of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the heart; a pressure source configured to propel a jet through the opening; a sensor configured to detect a pressure in a vicinity of the heart valve induced by the jet; and a control unit configured to steer the jet in response to the detected pressure.
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188. (canceled)
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189. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a liquid configured to be directed toward the plaque; and a compound abrasive particle comprising at least first and second layers comprising different respective materials, the particle configured to be suspended within the liquid and to abrade the plaque when the liquid is directed toward the plaque.
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190-193. -193. (canceled)
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194. A method for removing an occlusion from a body lumen of a subject, comprising:
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directing a jet toward the occlusion; detecting a pressure induced by the jet in the lumen; and steering the jet in response to the detecting.
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195. (canceled)
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196. Apparatus for removing an occlusion from a body lumen of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the lumen; a pressure source configured to propel a jet through the opening; a pressure sensor configured to detect a pressure in the lumen induced by the jet; and a control unit configured to steer the jet in response to the detected pressure.
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197. A method for treating plaque in a blood vessel of a subject, comprising:
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directing a fluid jet toward the plaque; detecting a pressure induced by the jet in the blood vessel; and imaging the plaque by processing the detected pressure.
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198. A method for treating plaque in a blood vessel of a subject, comprising:
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directing a fluid jet toward the plaque; detecting a pressure induced by the jet in the blood vessel; and facilitating a plaque removal therapy using the detected pressure.
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199. Apparatus for removing plaque from a blood vessel of a subject, comprising:
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a catheter shaped to define an opening and configured to be placed in the blood vessel; a pressure source configured to propel a jet through the opening; and a Doppler sensor configured to be disposed at a distal end of the catheter and to determine a flow distribution in the blood vessel induced by the jet.
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Specification