ES2610389T3 - Aparato de catéter de ultrasonidos - Google Patents
Aparato de catéter de ultrasonidos Download PDFInfo
- Publication number
- ES2610389T3 ES2610389T3 ES04711207.3T ES04711207T ES2610389T3 ES 2610389 T3 ES2610389 T3 ES 2610389T3 ES 04711207 T ES04711207 T ES 04711207T ES 2610389 T3 ES2610389 T3 ES 2610389T3
- Authority
- ES
- Spain
- Prior art keywords
- transmission element
- ultrasound
- absorbent
- sonic connector
- absorbent element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 abstract description 34
- 230000002745 absorbent Effects 0.000 abstract description 28
- 239000002250 absorbent Substances 0.000 abstract description 28
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000002604 ultrasonography Methods 0.000 abstract 7
- 210000004204 blood vessel Anatomy 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B2017/22014—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
- A61B2017/22015—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Catéter de ultrasonidos para romper oclusiones en vasos sanguíneos, comprendiendo el catéter ultrasónico (20): un cuerpo de catéter (10) flexible alargado que tiene un extremo proximal, un extremo distal y al menos una luz (21); un elemento de transmisión de ultrasonidos (24) que se extiende longitudinalmente a través de la luz (21) del cuerpo de catéter (10); un conector sónico (52) acoplado con un extremo proximal del elemento de transmisión de ultrasonidos (24) para acoplar el elemento de transmisión de ultrasonidos (24) con un dispositivo de generación de ultrasonidos (16) separado; en el que el catéter de ultrasonidos comprende: al menos un elemento absorbente (50) acoplado con el elemento de transmisión de ultrasonidos (24) adyacente al conector sónico (52), en el que el elemento absorbente (50) está adaptado para absorber calor y/o vibración, caracterizado porque el elemento absorbente (50) está dispuesto muy próximo al extremo distal del conector sónico (52) sin hacer tope con o tocar realmente el conector sónico (52), en el que el elemento absorbente (50) comprende al menos dos partes componentes que comprenden: al menos una parte de absorción (58) en contacto con el elemento de transmisión (24) para absorber calor y/o vibraciones; y al menos una parte de constricción (56, 64) acoplada con la parte de absorción para mantener la parte de absorción (58) en su sitio sobre el elemento de transmisión.
Description
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transmisión de ultrasonidos 24 inmediatamente distal e inmediatamente adyacente al conector sónico 52. El elemento absorbente 50 que no se encuentra bajo el alcance de la reivindicación 1 se describe en detalle adicional a continuación, pero generalmente está configurado para hacer tope con el conector sónico 52 para absorber calor y/o vibraciones transversales a partir de, y por tanto reducir el desgaste y rasgado en, el elemento de transmisión de ultrasonidos 24. Opcionalmente, algunos modos de realización incluyen además una o más juntas tóricas 46 distales al elemento absorbente 50 y dispuestas alrededor del elemento de transmisión de ultrasonidos 24 para proporcionar absorción adicional de la vibración transversal. El elemento absorbente 50 y las juntas tóricas 46 pueden usarse en cualquier número o combinación y tener un tamaño y configuración adecuados, dependiendo del nivel deseado de absorción o amortiguación de la vibración. Alternativa o adicionalmente, pueden usarse otras estructuras de amortiguación. Por tanto, la invención no se limita a la combinación mostrada en la figura 2.
El segmento distal 49 del orificio 44 rodea normalmente una parte del elemento de transmisión de ultrasonidos 24 y también puede contener uno o más juegos adicionales de elementos absorbentes 46. El segmento distal 49 puede contener también una parte de un conector en Y 15, que se acopla con el extremo distal 43 de la carcasa 42 del aparato de conector de extremo proximal 12. El acoplamiento del conector en Y 15 con el extremo distal 43 del conjunto de conector de extremo proximal 12 puede lograrse por medio de roscas complementarias, ajuste a presión, o cualquier otro medio adecuado. Una luz del conector en Y 48 del conector en Y 15 permite el paso del elemento de transmisión de ultrasonidos 24 y está en comunicación con la luz del cuerpo de catéter.
Generalmente, puede infundirse fluido presurizado tal como un líquido refrigerante a través del brazo lateral 13, a través de la luz del conector en Y 45 y a través de la luz del cuerpo de catéter de modo que fluye fuera de una o más aberturas de flujo de salida de fluido en el cabezal distal. La temperatura y el caudal de tal líquido refrigerante pueden controlarse específicamente para mantener la temperatura del elemento de transmisión de ultrasonidos 24 a una temperatura deseada dentro de su intervalo de trabajo óptimo. En particular, en modos de realización de la invención en los que el elemento de transmisión de ultrasonidos 24 está formado de una aleación de metal que presenta propiedades físicas óptimas (por ejemplo superelasticidad) dentro de un intervalo específico de temperaturas, la temperatura y el caudal del líquido refrigerante infundido a través del brazo lateral 13 de infusión de fluido pueden controlarse específicamente para mantener la temperatura del elemento de transmisión de ultrasonidos 24 dentro de un intervalo de temperaturas al que demuestra sus propiedades físicas más deseables. Por ejemplo, en modos de realización de la invención en los que el elemento de transmisión de ultrasonidos 24 está formado de una aleación con memoria de forma que presenta superelasticidad cuando está en su estado de martensita, pero que pierde la superelasticidad a medida que transita a un estado de austenita, será deseable ajustar la temperatura y el caudal del líquido refrigerante infundido a través del brazo lateral 13 de infusión de fluido para mantener la aleación con memoria de forma del elemento de transmisión de ultrasonidos 24 dentro de un intervalo de temperatura al que la aleación permanecerá en su estado de martensita y no experimentará transición a un estado de austenita. La temperatura a la que tal aleación con memoria de forma experimenta transición desde un estado de martensita hasta un estado de austenita se conoce como “temperatura de transición de martensita” del material. Por tanto, en estos modos de realización, el fluido infundido a través del brazo lateral 13 estará a tal temperatura, y se infundirá a tal caudal, para mantener la aleación con memoria de forma del elemento de transmisión de ultrasonidos 24 por debajo de su temperatura de transición de martensita.
En referencia a las figuras 3A y 3B, se muestra un ejemplo del elemento absorbente 50 dispuesto alrededor del cable de transmisión de ultrasonidos 24 e inmediatamente adyacente al extremo distal del conector sónico 52. Generalmente, el elemento absorbente 50 puede tener un tamaño, forma o configuración adecuada, puede hacerse de cualquier material adecuado, y puede acoplarse con el elemento de transmisión de ultrasonidos 24 mediante cualquier medio adecuado para proporcionar absorción o amortiguación del calor, las vibraciones transversales, otras tensiones no deseadas sobre el elemento de transmisión de ultrasonidos 24 y/o similar. Normalmente, el elemento absorbente 50 está hecho de material(es) de peso relativamente ligero, de modo que se coloca poca o ninguna carga adicional sobre el cable de transmisión. En algunos ejemplos, el elemento absorbente 50 comprende uno o más materiales que tienen propiedades de transferencia de calor para absorber calor desde el elemento de transmisión de ultrasonidos 24. Esencialmente, un elemento absorbente 50 de este tipo actúa como sumidero de calor para ayudar a impedir que el elemento de transmisión de ultrasonidos aumente de temperatura hasta un nivel que puede aumentar el desgaste y rasgado del elemento de transmisión 24. Los materiales que pueden usarse para proporcionar un elemento absorbente con propiedades de absorción de calor, por ejemplo, pueden incluir pero no se limitan a aluminio y sus aleaciones, magnesio y sus aleaciones y/o titanio y sus aleaciones.
El elemento absorbente 50 puede acoplarse con el elemento de transmisión de ultrasonidos 24 mediante cualquier medio adecuado. En algunos modos de realización, por ejemplo, el elemento absorbente 50 puede estar situado en una ubicación deseada en el elemento de transmisión 24 durante la fabricación y luego puede embutirse, usando un dispositivo de embutición, para adherirse al elemento de transmisión 24. También se contemplan otros procedimientos para acoplar el elemento absorbente 50 con el elemento de transmisión 24, tales como ajuste a presión, uso de sustancias adhesivas, y similares.
Los elementos absorbentes 50 de la presente invención están situados generalmente en el elemento de transmisión 24 en una ubicación adyacente al extremo distal del conector sónico 52. Tal como se muestra en la FIG. 3A, en algunos ejemplos que no se encuentran bajo el alcance de la reivindicación 1, el elemento absorbente 50 está
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situado inmediatamente adyacente a y haciendo tope con el extremo distal del conector sónico 52. Según la invención, como en la FIG. 3B, el elemento absorbente 50 está dispuesto muy próximo al extremo distal del conector sónico 52 sin hacer tope con o tocar realmente el conector sónico 52. En diversos modos de realización, por ejemplo, la distancia entre el extremo distal del conector sónico 52 y el extremo proximal del elemento absorbente 50 puede oscilar hasta unos pocos milímetros.
Con referencia ahora a las FIGS. 4A y 4C, un modo de realización y un ejemplo del aparato de conector de extremo proximal 12 puede incluir un elemento absorbente 50 que tiene dos o más partes componentes y/o que comprende dos o más materiales diferentes. Por ejemplo, en algunos modos de realización el elemento absorbente 50 incluye un absorbente de vibraciones 58 rodeando inmediatamente el elemento de transmisión 24 y un elemento de constricción 56 rodeando inmediatamente el absorbente de vibraciones 58. En diversos modos de realización, el absorbente de vibraciones 58 y/o elemento de constricción 56 pueden estar configurados para absorber vibraciones transversales, absorber/transferir calor, o ambos. En algunos modos de realización, por ejemplo, el absorbente de vibraciones 58 está hecho de un polímero o plástico que puede absorber tanto vibraciones como calor, mientras que el elemento de constricción 56 está configurado principalmente para mantener el absorbente de vibraciones 58 en su sitio en el elemento de transmisión 24.
En otros modos de realización, por ejemplo como en la FIG. 4B, un elemento de constricción 64 de diferente forma puede incluir uno o más materiales absorbentes de calor, y parte del elemento de constricción 64 puede entrar en contacto con el elemento de transmisión 24 o estar dispuesto en proximidad estrecha con el elemento de transmisión 24 para absorber el calor generado en el elemento de transmisión 24. El elemento de constricción 64 puede absorber también vibraciones en algunos modos de realización. En diversos modos de realización, por tanto, el elemento de constricción 56, 64 puede servir para una función de constricción, una función de absorción de vibraciones, una función de absorción de calor, o cualquier combinación de las mismas.
En referencia ahora a la figura 4C, en un ejemplo que no forma parte de la invención reivindicada, el elemento absorbente 50 incluye un elemento de constricción 68 que se solapa con una parte distal del conector sónico 52. De nuevo, un elemento de constricción 68 de este tipo puede proporcionar absorción de vibración y/o calor además de la función de constricción. En tales ejemplos solapantes, el absorbente de vibraciones 58 puede hacer tope directamente con el extremo distal del conector sónico 52 o puede estar separado del conector sónico 52, tal como se muestra en la figura 4C. Generalmente, los elementos absorbentes 50 a modo de ejemplo pueden incluir al menos una parte que hace tope o es estrechamente adyacente al conector sónico 52, pero pueden incluir una o más partes que están separadas también, como en la figura 4C. Tal como resulta evidente a partir de las figuras 4A-4C, el elemento absorbente 50 puede incluir cualquier combinación adecuada de partes componentes que tienen cualquier configuración adecuada y que comprende cualquier combinación de materiales adecuada. En un ejemplo que no forma parte de la invención, el elemento absorbente 50 puede comprender una pieza unitaria, en otros modos de realización de la invención el elemento absorbente 50 puede comprender más de dos partes componentes, o similar.
Aunque la invención se ha descrito anteriormente con referencia específica a diversos modos de realización y ejemplos, debe entenderse que pueden hacerse diversas adiciones, modificaciones, deleciones y alteraciones en tales modos de realización sin apartarse del alcance de la invención tal como se define mediante las reivindicaciones. Por consiguiente, se pretende que todas las adiciones, deleciones, alteraciones y modificaciones razonablemente previsibles se incluyan dentro del alcance de la invención tal como se define en las siguientes reivindicaciones.
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Claims (1)
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imagen1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/375,903 US6942677B2 (en) | 2003-02-26 | 2003-02-26 | Ultrasound catheter apparatus |
| US375903 | 2003-02-26 | ||
| PCT/US2004/004367 WO2004075945A2 (en) | 2003-02-26 | 2004-02-13 | Ultrasound catheter apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2610389T3 true ES2610389T3 (es) | 2017-04-27 |
Family
ID=32869062
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES04711207.3T Expired - Lifetime ES2610389T3 (es) | 2003-02-26 | 2004-02-13 | Aparato de catéter de ultrasonidos |
| ES12151894T Expired - Lifetime ES2821491T3 (es) | 2003-02-26 | 2004-02-13 | Aparato de catéter de ultrasonidos |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES12151894T Expired - Lifetime ES2821491T3 (es) | 2003-02-26 | 2004-02-13 | Aparato de catéter de ultrasonidos |
Country Status (5)
| Country | Link |
|---|---|
| US (5) | US6942677B2 (es) |
| EP (2) | EP2471474B1 (es) |
| JP (2) | JP5006031B2 (es) |
| ES (2) | ES2610389T3 (es) |
| WO (1) | WO2004075945A2 (es) |
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| ATE319378T1 (de) | 2001-12-03 | 2006-03-15 | Ekos Corp | Katheter mit mehreren ultraschall-abstrahlenden teilen |
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| US7335180B2 (en) | 2003-11-24 | 2008-02-26 | Flowcardia, Inc. | Steerable ultrasound catheter |
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| US7220233B2 (en) | 2003-04-08 | 2007-05-22 | Flowcardia, Inc. | Ultrasound catheter devices and methods |
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| US20070063618A1 (en) * | 2005-07-25 | 2007-03-22 | Piezoinnovations | Ultrasonic transducer devices and methods of manufacture |
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-
2003
- 2003-02-26 US US10/375,903 patent/US6942677B2/en not_active Expired - Lifetime
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2004
- 2004-02-13 EP EP12151894.8A patent/EP2471474B1/en not_active Expired - Lifetime
- 2004-02-13 EP EP04711207.3A patent/EP1596733B1/en not_active Expired - Lifetime
- 2004-02-13 JP JP2006503578A patent/JP5006031B2/ja not_active Expired - Fee Related
- 2004-02-13 ES ES04711207.3T patent/ES2610389T3/es not_active Expired - Lifetime
- 2004-02-13 ES ES12151894T patent/ES2821491T3/es not_active Expired - Lifetime
- 2004-02-13 WO PCT/US2004/004367 patent/WO2004075945A2/en active Application Filing
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2005
- 2005-07-11 US US11/179,829 patent/US7621929B2/en active Active
-
2009
- 2009-10-01 US US12/572,118 patent/US8961423B2/en not_active Expired - Lifetime
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2010
- 2010-05-28 JP JP2010122862A patent/JP5048808B2/ja not_active Expired - Fee Related
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2015
- 2015-02-06 US US14/616,601 patent/US10130380B2/en not_active Expired - Lifetime
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- 2018-10-17 US US16/162,709 patent/US11103261B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2821491T3 (es) | 2021-04-26 |
| US10130380B2 (en) | 2018-11-20 |
| EP1596733A2 (en) | 2005-11-23 |
| JP5006031B2 (ja) | 2012-08-22 |
| WO2004075945A3 (en) | 2005-04-28 |
| US6942677B2 (en) | 2005-09-13 |
| US11103261B2 (en) | 2021-08-31 |
| EP2471474B1 (en) | 2020-09-02 |
| US8961423B2 (en) | 2015-02-24 |
| US20050245951A1 (en) | 2005-11-03 |
| US7621929B2 (en) | 2009-11-24 |
| US20190059920A1 (en) | 2019-02-28 |
| US20100049209A1 (en) | 2010-02-25 |
| US20150150571A1 (en) | 2015-06-04 |
| JP2006519054A (ja) | 2006-08-24 |
| JP2010279693A (ja) | 2010-12-16 |
| WO2004075945A2 (en) | 2004-09-10 |
| EP1596733B1 (en) | 2016-10-26 |
| EP2471474A1 (en) | 2012-07-04 |
| JP5048808B2 (ja) | 2012-10-17 |
| US20040167507A1 (en) | 2004-08-26 |
| EP1596733A4 (en) | 2009-05-27 |
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