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Numéro de publicationUS20100256490 A1
Type de publicationDemande
Numéro de demandeUS 12/818,261
Date de publication7 oct. 2010
Date de dépôt18 juin 2010
Date de priorité18 mai 2004
Autre référence de publicationUS7883468, US20050261586, US20140323864
Numéro de publication12818261, 818261, US 2010/0256490 A1, US 2010/256490 A1, US 20100256490 A1, US 20100256490A1, US 2010256490 A1, US 2010256490A1, US-A1-20100256490, US-A1-2010256490, US2010/0256490A1, US2010/256490A1, US20100256490 A1, US20100256490A1, US2010256490 A1, US2010256490A1
InventeursInder Raj S. Makin, T. Douglas Mast, Michael H. Slayton, Peter G. Barthe, Jeffrey D. Messerly, Waseem Faidi, Megan M. Runk
Cessionnaire d'origineMakin Inder Raj S, Mast T Douglas, Slayton Michael H, Barthe Peter G, Messerly Jeffrey D, Waseem Faidi, Runk Megan M
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Medical system having an ultrasound source and an acoustic coupling medium
US 20100256490 A1
Résumé
An ultrasound medical system has an end effector including a medical ultrasound transducer and an acoustic coupling medium. The acoustic coupling medium has a transducer-proximal surface and a transducer-distal surface. The medical ultrasound transducer is positioned to emit medical ultrasound through the acoustic coupling medium from the transducer-proximal surface to the transducer-distal surface. The end effector is adapted to change a property (such as the shape and/or the temperature) of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient. In one example, such changes are used to change the focus and/or beam angle of the emitted ultrasound during the medical procedure.
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Revendications(20)
1. An ultrasound medical system comprising an end effector including a medical ultrasound transducer and an acoustic coupling medium, wherein the acoustic coupling medium has a transducer-proximal surface and a transducer-distal surface, wherein the medical ultrasound transducer is disposed to emit medical ultrasound through the acoustic coupling medium from the transducer-proximal surface to the transducer-distal surface, and wherein the end effector is adapted to change at least one property of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient.
2. The ultrasound medical system of claim 1, wherein the at-least-one property includes shape, and wherein the end effector is adapted to change the shape of the transducer-distal surface during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during the medical procedure.
3. The ultrasound medical system of claim 2, wherein the transducer-distal surface of the acoustic coupling medium is disposable in direct contact with patient tissue.
4. The ultrasound medical system of claim 3, wherein the end effector changes the pressure exerted by the acoustic coupling medium against the patient tissue when the transducer-distal surface of the acoustic coupling medium is disposed in direct contact with patient tissue during the medical procedure.
5. The ultrasound medical system of claim 2, wherein the end effector also includes an expandable acoustic window having an interior surface in direct contact with the transducer-distal surface of the acoustic coupling medium and having an exterior surface disposable in direct contact with patient tissue.
6. The ultrasound medical system of claim 5, wherein the end effector changes the pressure exerted by the acoustic coupling medium against the acoustic window when the exterior surface of the acoustic window is disposed in direct contact with patient tissue during the medical procedure.
7. The ultrasound medical system of claim 1, wherein the at-least-one property includes temperature, and wherein the end effector is adapted to change the temperature of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during the medical procedure.
8. The ultrasound medical system of claim 1, wherein the medical ultrasound transducer is chosen from the group consisting of a medical-imaging-only ultrasound transducer, a medical-treatment-only ultrasound transducer, and a medical-imaging-and-treatment ultrasound transducer.
9. The ultrasound medical system of claim 1, wherein the acoustic coupling medium is chosen from the group consisting of a liquid, a gel, and a colloid.
10. The ultrasound medical system of claim 1, wherein the end effector is disposable against an outside surface of the patient.
11. The ultrasound medical system of claim 1, wherein the end effector is insertable into the patient.
12. An ultrasound medical system comprising a controller and an end effector, wherein the end effector includes a medical ultrasound transducer and an acoustic coupling medium, wherein the acoustic coupling medium has a transducer-proximal surface and a transducer-distal surface, wherein the medical ultrasound transducer is disposed to emit medical ultrasound through the acoustic coupling medium from the transducer-proximal surface to the transducer-distal surface, wherein the end effector is adapted to change at least one property of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient, and wherein the controller controls the end effector to change the property to change ultrasound focus and/or ultrasound beam angle.
13. The ultrasound medical system of claim 12, wherein the at-least-one property includes shape, and wherein the end effector is adapted to change the shape of the transducer-distal surface during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during the medical procedure.
14. The ultrasound medical system of claim 12, wherein the at-least-one property includes temperature, and wherein the end effector is adapted to change the temperature of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during the medical procedure.
15. The ultrasound medical system of claim 12, wherein the medical ultrasound transducer is chosen from the group consisting of a medical-imaging-only ultrasound transducer, a medical-treatment-only ultrasound transducer, and a medical-imaging-and-treatment ultrasound transducer.
16. The ultrasound medical system of claim 12, wherein the acoustic coupling medium is chosen from the group consisting of a liquid, a gel, and a colloid.
17. The ultrasound medical system of claim 12, wherein the end effector is disposable against an outside surface of the patient.
18. The ultrasound medical system of claim 12, wherein the end effector is insertable into the patient.
19. An ultrasound medical system comprising a controller and an end effector, wherein the end effector includes a medical ultrasound transducer, an acoustic coupling medium, and a sheath, wherein the sheath includes an expandable acoustic window, wherein the acoustic coupling medium is disposed in direct contact with the medical ultrasound transducer and the acoustic window, wherein the medical ultrasound transducer is disposed to emit medical ultrasound through the acoustic window via the acoustic coupling medium, and wherein the controller controls the end effector to change the shape of the acoustic window, by changing the pressure exerted by the acoustic coupling medium against the acoustic window, during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient.
20. The ultrasound medical system of claim 19, wherein the controller controls the end effector to change the thickness of the acoustic window, by changing the pressure exerted by the acoustic coupling medium against the acoustic window, during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient.
Description
    REFERENCE TO RELATED APPLICATIONS
  • [0001]
    The present application is a continuation of U.S. patent Ser. No. 10/848,550 filed May 18, 2004, the contents of which are incorporated herein by reference.
  • FIELD OF THE INVENTION
  • [0002]
    The present invention relates generally to ultrasound, and more particularly to an ultrasound medical system having an ultrasound source and an acoustic coupling medium.
  • BACKGROUND OF THE INVENTION
  • [0003]
    Known ultrasound medical methods include using ultrasound imaging (at low power) of patients to identify patient tissue for medical treatment and include using ultrasound (at high power), from the same or a different ultrasound transducer, to ablate identified patient tissue by heating the tissue.
  • [0004]
    Known ultrasound medical systems and methods include deploying an end effector having an ultrasound transducer outside the body to break up kidney stones inside the body, endoscopically inserting an end effector having an ultrasound transducer in the rectum to medically destroy prostate cancer, laparoscopically inserting an end effector having an ultrasound transducer in the abdominal cavity to medically destroy a cancerous liver tumor, intravenously inserting a catheter end effector having an ultrasound transducer into a vein in the arm and moving the catheter to the heart to medically destroy diseased heart tissue, and interstitially inserting a needle end effector having an ultrasound transducer needle into the tongue to medically destroy tissue to reduce tongue volume to reduce snoring.
  • [0005]
    Conventional ultrasound medical systems include a system having an end effector including a medical ultrasound transducer, a sheath, and a water acoustic coupling medium. The end effector is inserted into a patient, and a balloon portion (which acts as an acoustic window) of the sheath is expanded by increasing water pressure until the balloon portion contacts patient tissue. Then, the medical ultrasound transducer emits medical ultrasound through the balloon portion via the water to image and/or treat the patient tissue.
  • [0006]
    Still, scientists and engineers continue to seek improved ultrasound medical systems.
  • SUMMARY OF THE INVENTION
  • [0007]
    A first expression of an embodiment of the invention is an ultrasound medical system having an end effector including a medical ultrasound transducer and an acoustic coupling medium. The acoustic coupling medium has a transducer-proximal surface and a transducer-distal surface. The medical ultrasound transducer is positioned to emit medical ultrasound through the acoustic coupling medium from the transducer-proximal surface to the transducer-distal surface. The end effector is adapted to change at least one property of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient.
  • [0008]
    A second expression of an embodiment of the invention is an ultrasound medical system having a controller and an end effector. The end effector includes a medical ultrasound transducer and an acoustic coupling medium. The acoustic coupling medium has a transducer-proximal surface and a transducer-distal surface. The medical ultrasound transducer is positioned to emit medical ultrasound having a focus and a beam angle through the acoustic coupling medium from the transducer-proximal surface to the transducer-distal surface. The end effector is adapted to change at least one property of the acoustic coupling medium during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient. The controller controls the end effector to change the property to change the focus and/or the beam angle.
  • [0009]
    A third expression of an embodiment of the invention is an ultrasound medical system having a controller and an end effector. The end effector includes a medical ultrasound transducer, an acoustic coupling medium, and a sheath. The sheath includes an expandable acoustic window, wherein the acoustic coupling medium is placed in direct contact with the medical ultrasound transducer and the acoustic window. The medical ultrasound transducer is positioned to emit medical ultrasound through the acoustic window via the acoustic coupling medium. The controller controls the end effector to change the shape of the acoustic window, by changing the pressure exerted by the acoustic coupling medium against the acoustic window, during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer during a medical procedure on a patient.
  • [0010]
    Several benefits and advantages are obtained from one or more of the expressions of an embodiment of the ultrasound medical system of the invention. The acoustic coupling medium also acts as an acoustic lens, wherein the end effector is adapted to change at least one property (such as the shape and/or the temperature) of the acoustic coupling medium which will change the focus and/or the beam angle of emitted ultrasound, with such changes occurring during emission, and/or between emissions, of ultrasound while performing a medical procedure on a patient.
  • [0011]
    The present invention has, without limitation, application in conventional endoscopic, laparoscopic, and open surgical instrumentation as well as application in robotic-assisted surgery.
  • BRIEF DESCRIPTION OF THE FIGURES
  • [0012]
    FIG. 1 is a perspective view of a first embodiment of an ultrasound medical system of the invention including a controller and an end effector, wherein the end effector is seen inserted into a patient (only a portion of whom is shown) and has an acoustic window, and wherein the end effector is adapted to change the shape of the acoustic window during a medical procedure by increasing the pressure of an acoustic coupling medium located inside the end effector;
  • [0013]
    FIG. 2 is a schematic cross-sectional view of the end effector of the ultrasound medical system of FIG. 1, wherein the adaptation of the end effector is shown and includes a movable piston which exerts pressure on the acoustic coupling medium;
  • [0014]
    FIG. 3 is a schematic cross-sectional view of an end effector of a second embodiment of an ultrasound medical system of the invention, wherein the end effector has an acoustic coupling medium, and wherein the end effector is adapted to change the shape of the medium-patient interface during a medical procedure, such adaptation being omitted for clarity;
  • [0015]
    FIG. 4 is a schematic cross-sectional view of an end effector of a third embodiment of an ultrasound medical system of the invention, wherein the end effector has an acoustic window and has an acoustic coupling medium located inside the end effector, wherein the end effector is adapted to change the temperature of the acoustic coupling medium during a medical procedure, and wherein the adaptation of the end effector includes a heater; and
  • [0016]
    FIG. 5 is a schematic cross-sectional view of an end effector of a fourth embodiment of an ultrasound medical system of the invention, wherein the end effector has an acoustic coupling medium and is adapted to change the temperature of the acoustic coupling medium during a medical procedure, such adaptation being omitted for clarity.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0017]
    Before explaining the present invention in detail, it should be noted that the invention is not limited in its application or use to the details of construction and arrangement of parts illustrated in the accompanying drawings and description. The illustrative embodiments of the invention may be implemented or incorporated in other embodiments, variations and modifications, and may be practiced or carried out in various ways. Furthermore, unless otherwise indicated, the terms and expressions employed herein have been chosen for the purpose of describing the illustrative embodiments of the present invention for the convenience of the reader and are not for the purpose of limiting the invention.
  • [0018]
    It is understood that any one or more of the following-described embodiments, examples, etc. can be combined with any one or more of the other following-described embodiments, examples, etc.
  • [0019]
    Referring now to the drawings, FIGS. 1-2 illustrate an embodiment of the present invention. A first expression of the embodiment of FIGS. 1-2 is an ultrasound medical system 110 comprising an end effector 112 including a medical ultrasound transducer 114 and an acoustic coupling medium 116. The acoustic coupling medium 116 has a transducer-proximal surface 118 and a transducer-distal surface 120. The medical ultrasound transducer 114 is disposed to emit medical ultrasound through the acoustic coupling medium 116 from the transducer-proximal surface 118 to the transducer-distal surface 120. The end effector 112 is adapted to change at least one property of the acoustic coupling medium 116 during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 114 during a medical procedure on a patient 122. The terminology “ultrasound medical system” includes an ultrasound medical imaging system, an ultrasound medical treatment system, and an ultrasound medical imaging and ultrasound medical treatment system. The terminology “medical procedure” includes an imaging procedure, a treatment procedure, and an imaging and treatment procedure.
  • [0020]
    In an enablement of the first expression of the embodiment of FIGS. 1-2, the at-least-one property includes shape, and the end effector 112 is adapted to change the shape (such as the curvature) of the transducer-distal surface 120 during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 114 during the medical procedure.
  • [0021]
    In one variation of this enablement, as shown in the embodiment of FIG. 3, the transducer-distal surface 220 of the acoustic coupling medium 216 is disposable in direct contact with patient tissue. In one modification, the end effector 212 of the ultrasound medical system 210 changes the pressure exerted by the acoustic coupling medium 216 against the patient tissue when the transducer-distal surface 220 of the acoustic coupling medium 216 is disposed in direct contact with patient tissue during the medical procedure. In one construction, the medical ultrasound transducer 214 is disposed in direct contact with the transducer-proximal surface 218 of the acoustic coupling medium 216. In one application, ultrasound imaging from the medical ultrasound transducer 214 or another ultrasound transducer is used to determine the shape of the interface between the transducer-distal surface 220 of the acoustic coupling medium 216 and the patient tissue. It is noted that the interface acts as an acoustic lens surface, and that changing the shape of the interface during the medical procedure can be used to change the focus and/or the beam angle of the ultrasound emitted from the medical ultrasound transducer 214 during the medical procedure when such ultrasound non-perpendicularly passes through the interface. In one option, ultrasound strain imaging of patient tissue is performed by the ultrasound medical system 210.
  • [0022]
    In a different variation of this enablement, as shown in the embodiment of FIGS. 1-2, the end effector 112 also includes an expandable acoustic window 126 having an interior surface 128 in direct contact with the transducer-distal surface 120 of the acoustic coupling medium 116 and having an exterior surface 130 disposable in direct contact with patient tissue 124. In one modification, the end effector 112 changes the pressure exerted by the acoustic coupling medium 116 against the acoustic window 126 when the exterior surface 130 of the acoustic window 126 is disposed in direct contact with patient tissue 124 during the medical procedure. In one construction, the medical ultrasound transducer 114 is disposed in direct contact with the transducer-proximal surface 118 of the acoustic coupling medium 116. In one application, ultrasound imaging from the medical ultrasound transducer 114 or another ultrasound transducer is used to determine the shape of the interface between the transducer-distal surface 120 of the acoustic coupling medium 116 and the interior surface 128 of the acoustic window 126 and the shape of the interface between the exterior surface 130 of the acoustic window 126 and the patient tissue 124. In one variation, the acoustic window 126 is a fully-circumferential acoustic window and in another variation it is not. In one option, ultrasound strain imaging of patient tissue 124 is performed by the ultrasound medical system.
  • [0023]
    It is noted that the interfaces act as acoustic lens surfaces, and that changing the shape of the interfaces during the medical procedure can be used to change the focus and/or the beam angle of the ultrasound emitted from the medical ultrasound transducer 114 during the medical procedure when such ultrasound non-perpendicularly passes through the interfaces. In one application, the acoustic coupling medium 116 is circulating water, wherein changing the flow rate of the circulating water changes the pressure exerted by the acoustic coupling medium 116 against the acoustic window 126. It is also noted that a change in shape (such as a change in curvature) of the acoustic window 126 typically is accompanied by a change in thickness of the acoustic window 126 and a change in the distance between the medical ultrasound transducer 114 and the acoustic window 126 which can also effect focus and/or beam angle as is understood by those skilled in the art. In one implementation, the acoustic window 126 is provided with a transducer-distal surface 120 which is rippled (not shown) for use in beam angle steering as is within the level of skill of the artisan.
  • [0024]
    In the same or a different enablement, as shown in the embodiment of FIG. 4, the at-least-one property includes temperature, and the end effector 312 of the ultrasound medical system 310 is adapted to change the temperature of the acoustic coupling medium 316 during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 314 during the medical procedure. Changing the temperature of the acoustic coupling medium 316 changes the speed of sound of the emitted ultrasound in the acoustic coupling medium 316 which can be used by those skilled in the art to change the focus and/or the beam angle of the emitted ultrasound when non-perpendicularly passing through a transmission medium interface. It is noted that the embodiment of FIG. 4 includes a rigid or expandable acoustic window 326, and that the embodiment of the ultrasound medical system 410 of FIG. 5 is identical to that of FIG. 4 except that the end effector 412 of FIG. 5 lacks an acoustic window.
  • [0025]
    In one example of any one or more or all of the embodiments of FIGS. 1-5, the medical ultrasound transducer 114, 214, 314 and/or 414 is chosen from the group consisting of a medical-imaging-only ultrasound transducer, a medical-treatment-only ultrasound transducer, and a medical-imaging-and-treatment ultrasound transducer. In one variation, the medical ultrasound transducer has a single transducer element having a planar or a curved ultrasound-emitting surface. In another variation, the medical ultrasound transducer has an array of transducer elements whose planar or curved ultrasound-emitting surfaces are together disposed to define a curved array surface or whose planar ultrasound-emitting surfaces are together disposed to define a planar array surface. In one modification, the transducer element array is also electronically focused and/or steered as is within the routine capabilities of those skilled in the art. In one extension, the end effector has one or more additional medical ultrasound transducers.
  • [0026]
    In the same or a different example, the acoustic coupling medium 116, 216, 316 and/or 416 is chosen from the group consisting of a liquid, a gel, and a colloid. In one variation, the acoustic coupling medium is a circulating acoustic coupling medium and in a different variation it is not circulating. Examples of liquids include, without limitation, water, a saline solution, glycerol, castor oil, and mineral oil. Other examples of liquids and examples of gels and colloids and other acoustic coupling media are left to the artisan.
  • [0027]
    In one implementation any one or more or all of the embodiments of FIGS. 1-5, the end effector 112, 212, 312 and/or 412 is disposable against an outside surface of the patient. In another implementation, the end effector is insertable into the patient.
  • [0028]
    A second expression of the embodiment of FIGS. 1-2 is an ultrasound medical system 110 comprising a controller 132 and an end effector 112. The end effector 112 includes a medical ultrasound transducer 114 and an acoustic coupling medium 116. The acoustic coupling medium 116 has a transducer-proximal surface 118 and a transducer-distal surface 120. The medical ultrasound transducer 114 is disposed to emit medical ultrasound through the acoustic coupling medium 116 from the transducer-proximal surface 118 to the transducer-distal surface 120. The end effector 112 is adapted to change at least one property of the acoustic coupling medium 116 during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 114 during a medical procedure on a patient 122. The controller 132 controls the end effector 112 to change the property to change ultrasound focus and/or ultrasound beam angle. In one extension of the embodiments of FIGS. 3-5, and in any one or more or all of the enablements, examples, etc. thereof, the ultrasound medical systems of FIGS. 3-5 also include the controller of the second expression of the embodiment of FIGS. 1-2.
  • [0029]
    A third expression of the embodiment of FIGS. 1-2 is an ultrasound medical system 110 comprising a controller 132 and an end effector 112. The end effector 112 includes a medical ultrasound transducer 114, an acoustic coupling medium 116, and a rigid or flexible sheath 134. The sheath 134 includes an expandable acoustic window 126. The acoustic coupling medium 116 is disposed in direct contact with the medical ultrasound transducer 114 and the acoustic window 126. The medical ultrasound transducer 114 is disposed to emit medical ultrasound through the acoustic window 126 via the acoustic coupling medium 116. The controller 132 controls the end effector 112 to change the shape of the acoustic window 126, by changing (directly or indirectly) the pressure exerted by the acoustic coupling medium 116 against the acoustic window 126, during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 114 during a medical procedure on a patient 122.
  • [0030]
    In one example of the third expression of the embodiment of FIGS. 1-2, a piston is used to directly change the pressure of an essentially static acoustic coupling medium. In another example, a valve is used to change the flow rate (and hence is used to indirectly change the pressure) of a flowing acoustic coupling medium. In one employment of the third expression of the embodiment of FIGS. 1-2, the controller 132 controls the end effector 112 to change the thickness of the acoustic window 126, by changing the pressure exerted by the acoustic coupling medium 116 against the acoustic window 126, during emission, and/or between emissions, of medical ultrasound from the medical ultrasound transducer 114 during a medical procedure on a patient 122.
  • [0031]
    In one arrangement of the embodiment of FIGS. 1-2, the ultrasound medical system 110 also includes a cable 136, a handpiece 138, and a rigid or flexible shaft 140. In this arrangement, the cable 136 operatively connects the controller 132 to the handpiece 138, the handpiece 138 is operatively connected to the end effector 112, and the shaft 140 supports the medical ultrasound transducer 114 and is operatively connected to the handpiece 138. The shaft 140 can be rotatable or non-rotatable with respect to the handpiece 138. Other arrangements are left to the artisan.
  • [0032]
    In one construction of the third expression of the embodiment of FIGS. 1-2, a thinner part of the sheath acts as the acoustic window. In another construction, the acoustic window is made from a different material or materials than the material or materials of the non-acoustic-window portion of the sheath. In an additional construction, the entire sheath acts as the acoustic window. Other constructions are left to the artisan.
  • [0033]
    Examples of acoustically-transmissive materials for acoustic windows include, without limitation, PET [polyethylene terephthalate] (such as 0.001-inch-thick PET for a fully-circumferential acoustic window), Nylon 6, 11 or 12, TPX [methylpentene copolymer] and flouropolymers such as PTFE [polytetrafluoroethylene], FEP [fluorinated ethylene propylene], PFA [perfluoroalkoxy], PVDA [polyvinylidene acetate], ETFE [ethylene tetrofluoroethylene], polyurethane and polyethylene (high and low density). Shaft and sheath materials, for flexible shafts and sheaths, include, without limitation, Nitinol, polyimide, reinforced polyimide, Nylon, Pebax, silicone, reinforced silicone, polyurethane, polyethylene, flouropolymers and coiled metals (e.g., coiled stainless steel).
  • [0034]
    In one deployment of the ultrasound medical system 110 of FIGS. 1-2, the end effector 112 is adapted to change the shape of the transducer-distal surface 120 of the acoustic coupling medium 116 by having the end effector 112 include an annular piston 142, movable by an attached annular piston rod 144. The movable piston 142 is used to change the pressure of a non-circulating acoustic coupling medium 116 to change the curvature of the transducer-distal surface 120 of the acoustic coupling medium 115 (which changes the curvature of the acoustic window 126). In a different deployment, not shown, the end effector 112 is adapted by having the end effector 112 include a channel for the acoustic coupling medium 116 extending from the area of the acoustic window 126 to an orifice connectable to a variable-pressure-exerting device.
  • [0035]
    In one deployment of the ultrasound medical system 310 of FIG. 4, the end effector 312 is adapted by having the end effector 312 include a heater 346 which is used to change the temperature of the acoustic coupling medium 316. In a different deployment, not shown, the end effector 312 is adapted by having the end effector 312 include a channel for the acoustic coupling medium 316 extending from the area of the acoustic window 326 to an orifice connectable to a heating device.
  • [0036]
    In a further deployment of the ultrasound medical systems of FIGS. 1-2 and FIG. 5, a tube (not shown) surrounds the shaft, is radially spaced apart from the shaft and the sheath, and longitudinally extends proximate the acoustic window with, for example, circulating water as the acoustic coupling medium which enters the ultrasound transducer-acoustic window area from the channel between the shaft and the tube and which exits the ultrasound transducer-acoustic window area from the channel between the tube and the sheath. In one variation, a pump (not shown) varies the flow rate of the water. In such adaptation of the end effector, an increasing flow rate increases the pressure of the circulating acoustic coupling medium which changes the shape of the transducer-distal surface of the acoustic coupling medium (in both the FIGS. 1-2 and FIG. 5 ultrasound medical systems) and hence the shape of the acoustic window (in the FIGS. 1-2 ultrasound medical system). Other deployments are left to the artisan.
  • [0037]
    Several benefits and advantages are obtained from one or more of the expressions of an embodiment of the ultrasound medical system of the invention. The acoustic coupling medium also acts as an acoustic lens, wherein the end effector is adapted to change at least one property (such as the shape and/or the temperature) of the acoustic coupling medium which will change the focus and/or the beam angle of emitted ultrasound, with such changes occurring during emission, and/or between emissions, of ultrasound while performing a medical procedure on a patient.
  • [0038]
    While the present invention has been illustrated by a description of several embodiments, it is not the intention of the applicants to restrict or limit the spirit and scope of the appended claims to such detail. Numerous other variations, changes, and substitutions will occur to those skilled in the art without departing from the scope of the invention. For instance, the ultrasound medical system of the invention has application in robotic assisted surgery taking into account the obvious modifications of such systems, components and methods to be compatible with such a robotic system. It will be understood that the foregoing description is provided by way of example, and that other modifications may occur to those skilled in the art without departing from the scope and spirit of the appended Claims.
Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
US3168659 *11 janv. 19602 févr. 1965Gen Motors CorpVariable focus transducer
US3779234 *30 juin 197118 déc. 1973Intersc Res InstUltrasonic catheter with rotating transducers
US3902501 *21 juin 19732 sept. 1975Medtronic IncEndocardial electrode
US3927557 *30 mai 197423 déc. 1975Gen ElectricAcoustic imaging apparatus with liquid-filled acoustic corrector lens
US4211948 *8 nov. 19788 juil. 1980General Electric CompanyFront surface matched piezoelectric ultrasonic transducer array with wide field of view
US4315514 *8 mai 198016 févr. 1982William DrewesMethod and apparatus for selective cell destruction
US4323077 *12 mars 19806 avr. 1982General Electric CompanyAcoustic intensity monitor
US4396019 *8 juin 19812 août 1983Perry Jr John DVaginal myograph method and apparatus
US4484569 *1 mars 198227 nov. 1984Riverside Research InstituteUltrasonic diagnostic and therapeutic transducer assembly and method for using
US4646756 *24 oct. 19833 mars 1987The University Of AberdeenUltra sound hyperthermia device
US4748985 *2 mai 19867 juin 1988Olympus Optical Co., Ltd.Ultrasonic imaging apparatus having circulating cooling liquid for cooling ultrasonic transducers thereof
US4757820 *12 mars 198619 juil. 1988Kabushiki Kaisha ToshibaUltrasound therapy system
US4765331 *10 févr. 198723 août 1988Circon CorporationElectrosurgical device with treatment arc of less than 360 degrees
US4787394 *23 avr. 198729 nov. 1988Kabushiki Kaisha ToshibaUltrasound therapy apparatus
US4790329 *12 juin 198713 déc. 1988Trustees Of Beth Israel HospitalAdjustable biopsy localization device
US4798215 *28 nov. 198617 janv. 1989Bsd Medical CorporationHyperthermia apparatus
US4818954 *6 févr. 19874 avr. 1989Karl Storz Endoscopy-America, Inc.High-frequency generator with automatic power-control for high-frequency surgery
US4844080 *10 juin 19884 juil. 1989Michael FrassUltrasound contact medium dispenser
US4858613 *2 mars 198822 août 1989Laboratory Equipment, Corp.Localization and therapy system for treatment of spatially oriented focal disease
US4884080 *2 juin 198728 nov. 1989Kabushiki Kaisha ToshibaColor image printing apparatus
US4932414 *2 nov. 198712 juin 1990Cornell Research Foundation, Inc.System of therapeutic ultrasound and real-time ultrasonic scanning
US4937767 *24 déc. 198726 juin 1990Hewlett-Packard CompanyMethod and apparatus for adjusting the intensity profile of an ultrasound beam
US4951653 *2 mars 198828 août 1990Laboratory Equipment, Corp.Ultrasound brain lesioning system
US4955365 *22 juin 198911 sept. 1990Laboratory Equipment, Corp.Localization and therapy system for treatment of spatially oriented focal disease
US4955366 *15 nov. 198811 sept. 1990Olympus Optical Co., Ltd.Ultrasonic therapeutical apparatus
US4960107 *30 sept. 19882 oct. 1990Kabushiki Kaisha ToshibaUltrasonic medical treatment apparatus
US4960109 *21 juin 19882 oct. 1990Massachusetts Institute Of TechnologyMulti-purpose temperature sensing probe for hyperthermia therapy
US4984575 *18 avr. 198815 janv. 1991Olympus Optical Co., Ltd.Therapeutical apparatus of extracorporeal type
US4986275 *9 août 198922 janv. 1991Kabushiki Kaisha ToshibaUltrasonic therapy apparatus
US5005580 *6 déc. 19899 avr. 1991Kabushiki Kaisha ToshibaDestroying wave treatment apparatus
US5015929 *1 déc. 198914 mai 1991Technomed International, S.A.Piezoelectric device with reduced negative waves, and use of said device for extracorporeal lithotrity or for destroying particular tissues
US5031626 *11 août 198916 juil. 1991Siemens AktiengesellschaftExtracorporeal lithotripsy apparatus with an ultrasound locating system
US5036855 *22 juin 19896 août 1991Laboratory Equipment, Corp.Localization and therapy system for treatment of spatially oriented focal disease
US5042486 *12 sept. 199027 août 1991Siemens AktiengesellschaftCatheter locatable with non-ionizing field and method for locating same
US5054470 *5 déc. 19898 oct. 1991Laboratory Equipment, Corp.Ultrasonic treatment transducer with pressurized acoustic coupling
US5065740 *23 juil. 199019 nov. 1991Kabushiki Kaisha ToshibaUltrasonic medical treatment apparatus
US5078144 *14 juin 19897 janv. 1992Olympus Optical Co. Ltd.System for applying ultrasonic waves and a treatment instrument to a body part
US5080101 *19 juin 198914 janv. 1992Edap International, S.A.Method for examining and aiming treatment with untrasound
US5080102 *21 avr. 198914 janv. 1992Edap International, S.A.Examining, localizing and treatment with ultrasound
US5095906 *2 janv. 199117 mars 1992Kabushiki Kaisha ToshibaImage processing system
US5095907 *19 juin 199017 mars 1992Kabushiki Kaisha ToshibaAcoustic wave therapy apparatus
US5117832 *20 août 19912 juin 1992Diasonics, Inc.Curved rectangular/elliptical transducer
US5143073 *14 juin 19881 sept. 1992Edap International, S.A.Wave apparatus system
US5143074 *3 mai 19911 sept. 1992Edap InternationalUltrasonic treatment device using a focussing and oscillating piezoelectric element
US5148809 *28 févr. 199022 sept. 1992Asgard Medical Systems, Inc.Method and apparatus for detecting blood vessels and displaying an enhanced video image from an ultrasound scan
US5149319 *11 sept. 199022 sept. 1992Unger Evan CMethods for providing localized therapeutic heat to biological tissues and fluids
US5150711 *23 juil. 199129 sept. 1992Edap International, S.A.Ultra-high-speed extracorporeal ultrasound hyperthermia treatment device
US5150712 *9 janv. 199129 sept. 1992Edap International, S.A.Apparatus for examining and localizing tumors using ultra sounds, comprising a device for localized hyperthermia treatment
US5158070 *18 juil. 199027 oct. 1992Edap International, S.A.Method for the localized destruction of soft structures using negative pressure elastic waves
US5158071 *27 juin 198927 oct. 1992Hitachi, Ltd.Ultrasonic apparatus for therapeutical use
US5203333 *21 août 199220 avr. 1993Kabushiki Kaisha ToshibaAcoustic wave therapy apparatus
US5209221 *20 sept. 199111 mai 1993Richard Wolf GmbhUltrasonic treatment of pathological tissue
US5238007 *12 déc. 199124 août 1993Vitatron Medical B.V.Pacing lead with improved anchor mechanism
US5240005 *22 nov. 199131 août 1993Dornier Medizintechnik GmbhAcoustic focussing device
US5242437 *7 juin 19897 sept. 1993Trimedyne Laser Systems, Inc.Medical device applying localized high intensity light and heat, particularly for destruction of the endometrium
US5295484 *19 mai 199222 mars 1994Arizona Board Of Regents For And On Behalf Of The University Of ArizonaApparatus and method for intra-cardiac ablation of arrhythmias
US5304115 *11 janv. 199119 avr. 1994Baxter International Inc.Ultrasonic angioplasty device incorporating improved transmission member and ablation probe
US5305731 *13 oct. 199226 avr. 1994Siemens AktiengesellschaftApparatus for generating acoustic wave having a liquid lens with an adjustable focal length
US5311869 *22 mars 199117 mai 1994Kabushiki Kaisha ToshibaMethod and apparatus for ultrasonic wave treatment in which medical progress may be evaluated
US5345940 *6 nov. 199213 sept. 1994Mayo Foundation For Medical Education And ResearchTransvascular ultrasound hemodynamic and interventional catheter and method
US5348017 *19 janv. 199320 sept. 1994Cardiovascular Imaging Systems, Inc.Drive shaft for an intravascular catheter system
US5354258 *7 janv. 199311 oct. 1994Edap InternationalUltra-high-speed extracorporeal ultrasound hyperthermia treatment method
US5370121 *3 sept. 19936 déc. 1994Siemens AktiengesellschaftMethod and apparatus for non-invasive measurement of a temperature change in a subject
US5391140 *27 déc. 199321 févr. 1995Siemens AktiengesellschaftTherapy apparatus for locating and treating a zone in the body of a life form with acoustic waves
US5391197 *25 juin 199321 févr. 1995Dornier Medical Systems, Inc.Ultrasound thermotherapy probe
US5398690 *3 août 199421 mars 1995Batten; Bobby G.Slaved biopsy device, analysis apparatus, and process
US5398691 *3 sept. 199321 mars 1995University Of WashingtonMethod and apparatus for three-dimensional translumenal ultrasonic imaging
US5402792 *15 mars 19944 avr. 1995Shimadzu CorporationUltrasonic medical apparatus
US5409002 *4 févr. 199425 avr. 1995Focus Surgery IncorporatedTreatment system with localization
US5413550 *21 juil. 19939 mai 1995Pti, Inc.Ultrasound therapy system with automatic dose control
US5419335 *18 août 199330 mai 1995Siemens AktiengesellschaftAcoustic lens
US5421338 *3 juin 19946 juin 1995Boston Scientific CorporationAcoustic imaging catheter and the like
US5431663 *8 déc. 199311 juil. 1995Coraje, Inc.Miniature ultrasonic transducer for removal of intravascular plaque and clots
US5435304 *24 mars 199325 juil. 1995Siemens AktiengesellschaftMethod and apparatus for therapeutic treatment with focussed acoustic waves switchable between a locating mode and a therapy mode
US5435311 *16 mai 199425 juil. 1995Hitachi, Ltd.Ultrasound therapeutic system
US5443069 *15 oct. 199322 août 1995Siemens AktiengesellschaftTherapeutic ultrasound applicator for the urogenital region
US5448994 *6 juin 199412 sept. 1995Kabushiki Kaisha ToshibaApparatus for performing medical treatment by using electroacoustic transducer element
US5458597 *8 nov. 199317 oct. 1995Zomed InternationalDevice for treating cancer and non-malignant tumors and methods
US5465724 *28 mai 199314 nov. 1995Acuson CorporationCompact rotationally steerable ultrasound transducer
US5471988 *23 déc. 19945 déc. 1995Olympus Optical Co., Ltd.Ultrasonic diagnosis and therapy system in which focusing point of therapeutic ultrasonic wave is locked at predetermined position within observation ultrasonic scanning range
US5474071 *22 févr. 199412 déc. 1995Technomed Medical SystemsTherapeutic endo-rectal probe and apparatus constituting an application thereof for destroying cancer tissue, in particular of the prostate, and preferably in combination with an imaging endo-cavitary-probe
US5485839 *2 sept. 199423 janv. 1996Kabushiki Kaisha ToshibaMethod and apparatus for ultrasonic wave medical treatment using computed tomography
US5492126 *2 mai 199420 févr. 1996Focal SurgeryProbe for medical imaging and therapy using ultrasound
US5500012 *8 juil. 199419 mars 1996Angeion CorporationAblation catheter system
US5501655 *15 juil. 199426 mars 1996Massachusetts Institute Of TechnologyApparatus and method for acoustic heat generation and hyperthermia
US5514085 *1 oct. 19937 mai 1996Yoon; InbaeMultifunctional devices for use in endoscopic surgical procedures and methods therefor
US5514130 *11 oct. 19947 mai 1996Dorsal Med InternationalRF apparatus for controlled depth ablation of soft tissue
US5520188 *2 nov. 199428 mai 1996Focus Surgery Inc.Annular array transducer
US5522869 *8 mars 19954 juin 1996Burdette; Everette C.Ultrasound device for use in a thermotherapy apparatus
US5524620 *26 janv. 199411 juin 1996November Technologies Ltd.Ablation of blood thrombi by means of acoustic energy
US5526815 *10 déc. 199318 juin 1996Siemens AktiengesellschatTherapy apparatus for locating and treating a zone located in the body of a life form with acoustic waves
US5526816 *2 juin 199518 juin 1996Bracco Research S.A.Ultrasonic spectral contrast imaging
US5526822 *24 mars 199418 juin 1996Biopsys Medical, Inc.Method and apparatus for automated biopsy and collection of soft tissue
US5540656 *24 janv. 199530 juil. 1996Baxter International, Inc.Ultrasonic angioplasty device having surface disruptions
US5762066 *22 mai 19959 juin 1998Ths International, Inc.Multifaceted ultrasound transducer probe system and methods for its use
US6432057 *1 juin 200013 août 2002Lunar CorporationStabilizing acoustic coupler for limb densitometry
US20020065512 *13 juil. 200130 mai 2002Todd FjieldThermal treatment methods and apparatus with focused energy application
US20030144593 *5 févr. 200331 juil. 2003Whitmore Willet F.Tissue warming device and method
USRE33590 *22 nov. 198821 mai 1991Edap International, S.A.Method for examining, localizing and treating with ultrasound
Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US823280130 juin 201131 juil. 2012General Electric CompanyNuclear quadrupole resonance system and method for structural health monitoring
US963607320 déc. 20132 mai 2017Caperay Medical (Pty) Ltd.Dual-modality mammography
Classifications
Classification aux États-Unis600/439
Classification internationaleA61B17/22, A61N7/02, A61N7/00, A61H1/00, A61B8/00
Classification coopérativeA61B8/4281, A61N7/00, A61B8/546, A61N2007/0052, A61B8/4272, A61N7/022, A61B8/12, A61B2017/2253, A61B8/4444
Classification européenneA61N7/02C
Événements juridiques
DateCodeÉvénementDescription
12 déc. 2011ASAssignment
Owner name: ETHICON ENDO-SURGERY, INC., OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAKIN, INDER RAJ S.;MAST, T. DOUGLAS;SLAYTON, MICHAEL H.;AND OTHERS;SIGNING DATES FROM 20040830 TO 20040909;REEL/FRAME:027368/0037
28 nov. 2015ASAssignment
Owner name: ETHICON ENDO-SURGERY, LLC, PUERTO RICO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ETHICON ENDO-SURGERY, INC.;REEL/FRAME:037161/0276
Effective date: 20151106
27 févr. 2017ASAssignment
Owner name: ETHICON LLC, PUERTO RICO
Free format text: CHANGE OF NAME;ASSIGNOR:ETHICON ENDO-SURGERY, LLC;REEL/FRAME:041821/0186
Effective date: 20161230