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US3874372A - Insert for ultrasonic medical device - Google Patents

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US3874372A
US3874372A US396431A US39643173A US3874372A US 3874372 A US3874372 A US 3874372A US 396431 A US396431 A US 396431A US 39643173 A US39643173 A US 39643173A US 3874372 A US3874372 A US 3874372A
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fluid
treatment instrument
handle
insert
flow path
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US396431A
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Bon Alain Le
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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 inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means

Definitions

  • An insert for ultrasonic medical apparatus includes a transducer for generating ultrasonic vibrations and a treatment instrument actively coupled to the transducer to apply the ultrasonic vibrations developed by the transducer to a patient undergoing treatment.
  • the treatment instrument is a slender needle and is provided with a bore along its longitudinal axis. The bore provides a flow path for a fluid which flows through it, through a bulge in the flowpath at one end of the treatment instrument, and out through an orifice in the bulge. The bulge or enlargement induces cavitation in the fluid which reinforces the ultrasonic vibrations.
  • This invention relates to medical equipment for human or veterinary medicine using ultrasonics, and more particularly to a part of the equipment called an insert.
  • Ultrasonic medical instruments usually include an electric power source, a fluid source and a handle supporting an insert.
  • the insert includes a transducer for generating ultrasonic vibrations actively coupled to a treatment instrument which applies the ultrasonic vibrations to an area of a patient undergoing treatment.
  • a fluid current immerses the transducer and is then directed to the active zone of the treatment instrument; that is. the area of the treatment instrument at which the ultrasonic vibrations are applied to the patient.
  • a tube attached to the insert and provided with a swivelling tip at an end directs the fluid to the active zone of the treatment instrument.
  • Circulation of the fluid over the transducer and to the treatment instrument is necessary and desirable for a number of reasons.
  • the fluid carries away heat from the transducer and from the active zone of the treatment instrument. This heat is generated by a transformation of some of the mechanical energy carried in the ultrasonic vibrations into thermal energy and would cause a considerable rise in temperature of the insert ilit were not removed.
  • cavitation is developed in the fluid. Vacuum bubbles within the atomized fluid burst and generate shock waves in the atomized fluid which reinforces the effect of the mechanical ultrasonic vibrations.
  • an active fluid to the area of treatment that will produce some desired result in a biological specimen undergoing treatment. For example. it is known to apply a hemostatic liquid in this manner.
  • the fluid In order to maximize cooling of the treatment insert vibration reinforcement due cavitation, a biological reaction from the active properties of the fluid, the fluid should be delivered as close as possible to the active zone of the instrument and to the region under treatment. This is particularly true in the case of cavitation effects. Because of peculiarities in their construction, known inserts do not permit maximum cooling, cavitation. and biological effects. In these devices fluid to be atomized is directed over the active zone of the treatment instrument by an erratically swivelling tip attached to an end of tubing through which the fluid flows. As a result poor contact between the active zone of the treatment instrument and the atomized fluid is realized.
  • the insert according to the invention ispart of an ultrasonic medical device usable, for example, for disintegrating kidney stones.
  • the device comprises a hollow handle or holder with the insert inserted therein.
  • the insert comprises an electro-mechanical transducer for generating ultrasonic vibration and a treatment instrument fixed to the transducer and coactive therewith for applying ultrasonic vibrations developed by the transducer to an area of a biological specimin or patient undergoing treatment.
  • the hollow handle of the device defines a fluid flow path through which fluid flows enveloping the transducer. Flow path means extend the flow path to an end of the treatment instrument adjacent the transducer.
  • the treatment instrument is in the form of a slender needle, hollow along its longitudinal axis, and flared at its end opposite the transducer.
  • Fluid flowing through the hollow handle continues through the flow path means, through the treatment instrument and out an orifice in the flared end. As the fluid flows through the orifice it is atomized. When the transducer is energized it develops ultrasonic mechanical vibrations in the treatment instrumentwhich are applied to the region of a patient under treatment by the instrument. The ultrasonic vibrations also develop cavitation in the atomized fluid.
  • FIG. I is a perspective view of the insert
  • FIG. 2 is a partial section view of the insert inserted in a handle.
  • the present invention comprises a plurality of magnetostrictive plates or reeds I connected at one end of a joining stem 2, the other end of which is connected to a treatment instrument 3.
  • a hollow case or sleeve 4 extends over the end of the joining stem 2 at which the magnetostrictive reeds l are connected.
  • An orifice 8 is one of a plurality of orifices through the side of the hollow case 4 in the region of the end where the magnetostrictive reeds l are connected.
  • the hollow case 4 is juxtaposed a hollow body 5, through which the joining stem 2 extends, with an exit channel l0 on its side.
  • An instrument holder 2a is fixed to an opposite end of the joining stem 2 from the magnetostrictive reeds l.
  • the instrument 3 is fixed to the instrument holder 2a by means not shown. Although the instrument 3 is rigidly fixed to the instrument holder 2a so as to render it coactive therewith, the means fixing the instrument 3 thereto allow the instrument 3 to be removed and to be laterally shifted parallel to the axis of the joining rod 2.
  • a flexible tubing 11 extends from the exit channel 10 of the body 5 to an end of the instrument 3a adjacent the instrument holder 2a.
  • the insert is illustrated in FIG. 2 inserted into a handle 6.
  • the hollow case 4 carries a td roidal member or O-ring 4a which supports the handle 6 and insures a tight fit between the insert and the handle 6.
  • the insert is inserted into the handle 6 so as to block the opening 6a.
  • the toroidal member 4a establishes one end of an interior zone 13 in the hollow handle 6.
  • a fluid channel 7 is attached to an opening in an end of the hollow handle 6 opposite the magnetostrictive reeds l.
  • the fluid channel 7 contains wires carrying electric power to a solenoid not shown in the figures. surrounding the magnetostrictive reeds 1.
  • the electric power delivered to the solenoid is time varying at an ultrasonic frequency, and develops an alternating magnetic field in the solenoid alternating at the same frequency as the electric power. This alternating magnetic field causes the magnetostrictive reeds l to vibrate at ultrasonic frequencies. These ultrasonic mechanical vibrations propagate through the joining stem 2 to the treatment instrument 3 which then vibrates at ultrasonic frequencies.
  • an important feature of this invention is the treatment instrument 3 which is formed like a slender needle, hollow along its longitudinal axis. At one end of the instrument 3 its body flares out into a bulge 12 in which an orifice 12a establishes a communication between the interior of the needle and the exterior.
  • the instrument 3 When used for the disintegration of kidney stones the instrument 3 may be in the form of a needle with a diameter of approximately 0.8 millimeters and approximately eight to 10 centimeters long.
  • the operation of the invention can best be understood by following a description of the fluid flow path through the instrument.
  • the fluid is supplied by a reservoir to a pump, not shown, which pumps the fluid through the fluid channel 7 in a direction indicated by the arrow 14.
  • the fluid flows into the handle 6 in a direction indicated by arrow 15, envelops the magnetostrictive reeds 1, and fills the interior zone 13 of the handle 6.
  • the orifice 8 provides a flow path for the fluid through the hollow case 4 into the interior chamber 9 of the body 5, and through the exit channel 10 of the body 5.
  • the flexible tubing 11 provides a flow path from the exit channel l into the treatment instrument 3.
  • the fluid flows through the hollow in the instrument 3 and out the orifice 12a in the direction of the arrow 16. Because the instrument 3 is provided with a bulge 12 the fluid is atomized as it passes through the orifice 120.
  • cooling of the insert is realized by immersing it in a flow of fluid, cavitation is developed in the fluid when it is applied to the region of the patient under treatment, active fluids can be applied directly to the region under treatment, and the treatment instrument is constructed to allow it access to heretofore inaccessible regions.
  • the treatrii'iitinstrument 3 is not parallel to the joining stem 2 but is fixed with its longitudinal axis making some angle with the longitudinal axis of the stem 2.
  • One embodiment of the invention found to be effec- 15 tive was constructed using magneto-strictive reeds 1 approximately twenty six hundredths of a millimeter thick, 90 millimeters long and 4 and 7500 millimeters wide and made of nickel.
  • the needle 3 and the joining stem 2 were both made of an unoxidizable metal INOX 18.08" (French Trade Mark).
  • the diameter of the bulge 12 was i millimeter, the internal diameter of the needle 3 equaled the internal diameter of the bulge l2 and the orifice 12a in the bulge 12 was circular.
  • An electric current having a frequency on the order of kilohertz was used to energize the solenoid.
  • a medical device for applying ultrasonic vibrations to a patient which comprises a hollow handle, an insert supported in said handle, said insert comprising an ultrasonic vibration generator inserted in said handle, a treatment instrument comprising a slender needle provided with a bore passing along its longitudinal axis defining a fluid flow path for flowing a fluid therethrough.
  • said vibration generator having a joining stem protruding from said handle for coactively joining said ultrasonic vibration generator in use to said treatment instrument for applying ultrasonic vibrations developed by said generator to a patient.
  • said treatment instrurnent having one end bulged with an outlet orifice communicating with said bore for inducing cavitation in said fluid when discharged through said outlet orifice
  • said hollow handle defining a fluid flow path for delivery of said fluid to said ultrasonic vibration generator to cool said ultrasonic vibration generator, a flexible tubing connected between said flow path in said handle and said flow path in said treatment instrument, and said flow of fluid passing through said bulge and having cavitation induced therein by said bulge in order to reinforce said ultrasonic vibrations.

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  • 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)
  • Media Introduction/Drainage Providing Device (AREA)
  • Special Spraying Apparatus (AREA)

Abstract

An insert for ultrasonic medical apparatus includes a transducer for generating ultrasonic vibrations and a treatment instrument actively coupled to the transducer to apply the ultrasonic vibrations developed by the transducer to a patient undergoing treatment. The treatment instrument is a slender needle and is provided with a bore along its longitudinal axis. The bore provides a flow path for a fluid which flows through it, through a bulge in the flowpath at one end of the treatment instrument, and out through an orifice in the bulge. The bulge or enlargement induces cavitation in the fluid which reinforces the ultrasonic vibrations.

Description

IZB-Z HA AU 335 EX United States Patent 11 1 [111 3,874,372 Le Bon Apr. 1, 1975 DEVICE Inventor: Alain Le Bon, Societe Minerve-l bis-3, rue Barbes 92400, Courbevoie, France Filed: Sept. 12, 1973 Appl. No.: 396,431
Foreign Application Priority Date Sept. 13. 1972 France 72.32456 US. Cl. 128/24 A, 128/66 Int. Cl. A6111 1/00 Field of Search 128/24 A, 66, 62 A, 303 R,
References Cited UNITED STATES PATENTS Primary Examiner-Lawrence W. Trapp Attorney, Agent, or Firm-Robert E. Burns; Emmanuel J. Lobato; Bruce L. Adams [57] ABSTRACT An insert for ultrasonic medical apparatus includes a transducer for generating ultrasonic vibrations and a treatment instrument actively coupled to the transducer to apply the ultrasonic vibrations developed by the transducer to a patient undergoing treatment. The treatment instrument is a slender needle and is provided with a bore along its longitudinal axis. The bore provides a flow path for a fluid which flows through it, through a bulge in the flowpath at one end of the treatment instrument, and out through an orifice in the bulge. The bulge or enlargement induces cavitation in the fluid which reinforces the ultrasonic vibrations.
1 Claim, 2 Drawing Figures PATENTED APR 1 I975 FIG] INSERT FOR ULTRASONIC MEDICAL DEVICE BACKGROUND OF THE INVENTION This invention relates to medical equipment for human or veterinary medicine using ultrasonics, and more particularly to a part of the equipment called an insert.
The use of medical equipment that produces ultrasonic vibrations for the treatment of various ills is well known. For example. U.S. Pat. No. 2,990,616 and 3,075,288 teach ultrasonic medical instruments used to treat stomach illnesses.
Ultrasonic medical instruments usually include an electric power source, a fluid source and a handle supporting an insert. The insert includes a transducer for generating ultrasonic vibrations actively coupled to a treatment instrument which applies the ultrasonic vibrations to an area of a patient undergoing treatment. A fluid current immerses the transducer and is then directed to the active zone of the treatment instrument; that is. the area of the treatment instrument at which the ultrasonic vibrations are applied to the patient. Most often a tube attached to the insert and provided with a swivelling tip at an end directs the fluid to the active zone of the treatment instrument.
Circulation of the fluid over the transducer and to the treatment instrument is necessary and desirable for a number of reasons. First. the fluid carries away heat from the transducer and from the active zone of the treatment instrument. This heat is generated by a transformation of some of the mechanical energy carried in the ultrasonic vibrations into thermal energy and would cause a considerable rise in temperature of the insert ilit were not removed. By atomizing the fluid delivered to the active zone ofthe treatment instrument while the instrument is undergoing ultrasonic vibrations, cavitation is developed in the fluid. Vacuum bubbles within the atomized fluid burst and generate shock waves in the atomized fluid which reinforces the effect of the mechanical ultrasonic vibrations. Finally, for medical reasons one may wish to apply an active fluid to the area of treatment that will produce some desired result in a biological specimen undergoing treatment. For example. it is known to apply a hemostatic liquid in this manner.
In order to maximize cooling of the treatment insert vibration reinforcement due cavitation, a biological reaction from the active properties of the fluid, the fluid should be delivered as close as possible to the active zone of the instrument and to the region under treatment. This is particularly true in the case of cavitation effects. Because of peculiarities in their construction, known inserts do not permit maximum cooling, cavitation. and biological effects. In these devices fluid to be atomized is directed over the active zone of the treatment instrument by an erratically swivelling tip attached to an end of tubing through which the fluid flows. As a result poor contact between the active zone of the treatment instrument and the atomized fluid is realized.
Another important limitation of known instruments results from the means by which a flow path of the fluid is established. The juxtaposition along the treatment instrument ofa flow path means for the fluid creates an obstruction rendering the instrument inapplicable for certain operations.
SUMMARY OF THE INVENTION It is a principal object of the invention to provide an insert for ultrasonic medical instruments eliminating the problems of the aforementioned inserts.
The insert according to the invention ispart of an ultrasonic medical device usable, for example, for disintegrating kidney stones. The device comprises a hollow handle or holder with the insert inserted therein. The insert comprises an electro-mechanical transducer for generating ultrasonic vibration and a treatment instrument fixed to the transducer and coactive therewith for applying ultrasonic vibrations developed by the transducer to an area of a biological specimin or patient undergoing treatment. The hollow handle of the device defines a fluid flow path through which fluid flows enveloping the transducer. Flow path means extend the flow path to an end of the treatment instrument adjacent the transducer. The treatment instrument is in the form of a slender needle, hollow along its longitudinal axis, and flared at its end opposite the transducer. Fluid flowing through the hollow handle continues through the flow path means, through the treatment instrument and out an orifice in the flared end. As the fluid flows through the orifice it is atomized. When the transducer is energized it develops ultrasonic mechanical vibrations in the treatment instrumentwhich are applied to the region of a patient under treatment by the instrument. The ultrasonic vibrations also develop cavitation in the atomized fluid.
BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the insert will be better understood as described in the following'specification and appended claims, in conjunction with the following drawings in which:
FIG. I is a perspective view of the insert;
FIG. 2 is a partial section view of the insert inserted in a handle.
DESCRIPTION OF THE PREFERRED EMBODIMENT As illustrated in FIGS. 1 and 2 the present invention comprises a plurality of magnetostrictive plates or reeds I connected at one end of a joining stem 2, the other end of which is connected to a treatment instrument 3. A hollow case or sleeve 4 extends over the end of the joining stem 2 at which the magnetostrictive reeds l are connected. An orifice 8 is one of a plurality of orifices through the side of the hollow case 4 in the region of the end where the magnetostrictive reeds l are connected. The hollow case 4 is juxtaposed a hollow body 5, through which the joining stem 2 extends, with an exit channel l0 on its side. An instrument holder 2a is fixed to an opposite end of the joining stem 2 from the magnetostrictive reeds l.
The instrument 3 is fixed to the instrument holder 2a by means not shown. Although the instrument 3 is rigidly fixed to the instrument holder 2a so as to render it coactive therewith, the means fixing the instrument 3 thereto allow the instrument 3 to be removed and to be laterally shifted parallel to the axis of the joining rod 2. A flexible tubing 11 extends from the exit channel 10 of the body 5 to an end of the instrument 3a adjacent the instrument holder 2a.
The insert is illustrated in FIG. 2 inserted into a handle 6. The hollow case 4 carries a td roidal member or O-ring 4a which supports the handle 6 and insures a tight fit between the insert and the handle 6. The insert is inserted into the handle 6 so as to block the opening 6a. The toroidal member 4a establishes one end of an interior zone 13 in the hollow handle 6.
A fluid channel 7 is attached to an opening in an end of the hollow handle 6 opposite the magnetostrictive reeds l. The fluid channel 7 contains wires carrying electric power to a solenoid not shown in the figures. surrounding the magnetostrictive reeds 1. The electric power delivered to the solenoid is time varying at an ultrasonic frequency, and develops an alternating magnetic field in the solenoid alternating at the same frequency as the electric power. This alternating magnetic field causes the magnetostrictive reeds l to vibrate at ultrasonic frequencies. These ultrasonic mechanical vibrations propagate through the joining stem 2 to the treatment instrument 3 which then vibrates at ultrasonic frequencies.
An important feature of this invention is the treatment instrument 3 which is formed like a slender needle, hollow along its longitudinal axis. At one end of the instrument 3 its body flares out into a bulge 12 in which an orifice 12a establishes a communication between the interior of the needle and the exterior. When used for the disintegration of kidney stones the instrument 3 may be in the form of a needle with a diameter of approximately 0.8 millimeters and approximately eight to 10 centimeters long.
The operation of the invention can best be understood by following a description of the fluid flow path through the instrument. The fluid is supplied by a reservoir to a pump, not shown, which pumps the fluid through the fluid channel 7 in a direction indicated by the arrow 14. The fluid flows into the handle 6 in a direction indicated by arrow 15, envelops the magnetostrictive reeds 1, and fills the interior zone 13 of the handle 6. The orifice 8 provides a flow path for the fluid through the hollow case 4 into the interior chamber 9 of the body 5, and through the exit channel 10 of the body 5. The flexible tubing 11 provides a flow path from the exit channel l into the treatment instrument 3. The fluid flows through the hollow in the instrument 3 and out the orifice 12a in the direction of the arrow 16. Because the instrument 3 is provided with a bulge 12 the fluid is atomized as it passes through the orifice 120.
Thus in the embodiment of the invention cooling of the insert is realized by immersing it in a flow of fluid, cavitation is developed in the fluid when it is applied to the region of the patient under treatment, active fluids can be applied directly to the region under treatment, and the treatment instrument is constructed to allow it access to heretofore inaccessible regions. It is to be understood that the invention is not limited to the embodiment described herein but that alternate embodiments may include variations from the embodiment disclosed herein and still be within the scope of the invention. For instance one variation would include several orifices 8 in the case 4 and several orifices IZair the bulgelg According to another variafon, the treatrii'iitinstrument 3 is not parallel to the joining stem 2 but is fixed with its longitudinal axis making some angle with the longitudinal axis of the stem 2.
One embodiment of the invention found to be effec- 15 tive was constructed using magneto-strictive reeds 1 approximately twenty six hundredths of a millimeter thick, 90 millimeters long and 4 and 7500 millimeters wide and made of nickel. The needle 3 and the joining stem 2 were both made of an unoxidizable metal INOX 18.08" (French Trade Mark). The diameter of the bulge 12 was i millimeter, the internal diameter of the needle 3 equaled the internal diameter of the bulge l2 and the orifice 12a in the bulge 12 was circular. An electric current having a frequency on the order of kilohertz was used to energize the solenoid.
What I claim and desire to secure by letters patent is: 1. A medical device for applying ultrasonic vibrations to a patient which comprises a hollow handle, an insert supported in said handle, said insert comprising an ultrasonic vibration generator inserted in said handle, a treatment instrument comprising a slender needle provided with a bore passing along its longitudinal axis defining a fluid flow path for flowing a fluid therethrough. said vibration generator having a joining stem protruding from said handle for coactively joining said ultrasonic vibration generator in use to said treatment instrument for applying ultrasonic vibrations developed by said generator to a patient. said treatment instrurnent having one end bulged with an outlet orifice communicating with said bore for inducing cavitation in said fluid when discharged through said outlet orifice, said hollow handle defining a fluid flow path for delivery of said fluid to said ultrasonic vibration generator to cool said ultrasonic vibration generator, a flexible tubing connected between said flow path in said handle and said flow path in said treatment instrument, and said flow of fluid passing through said bulge and having cavitation induced therein by said bulge in order to reinforce said ultrasonic vibrations.
LII

Claims (1)

1. A medical device for applying ultrasonic vibrations to a patient which cOmprises a hollow handle, an insert supported in said handle, said insert comprising an ultrasonic vibration generator inserted in said handle, a treatment instrument comprising a slender needle provided with a bore passing along its longitudinal axis defining a fluid flow path for flowing a fluid therethrough, said vibration generator having a joining stem protruding from said handle for coactively joining said ultrasonic vibration generator in use to said treatment instrument for applying ultrasonic vibrations developed by said generator to a patient, said treatment instrument having one end bulged with an outlet orifice communicating with said bore for inducing cavitation in said fluid when discharged through said outlet orifice, said hollow handle defining a fluid flow path for delivery of said fluid to said ultrasonic vibration generator to cool said ultrasonic vibration generator, a flexible tubing connected between said flow path in said handle and said flow path in said treatment instrument, and said flow of fluid passing through said bulge and having cavitation induced therein by said bulge in order to reinforce said ultrasonic vibrations.
US396431A 1972-09-13 1973-09-12 Insert for ultrasonic medical device Expired - Lifetime US3874372A (en)

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NL (1) NL7216966A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
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US4040414A (en) * 1976-05-12 1977-08-09 Xygiene, Inc. Ultrasonic personal care instrument and method
US4526575A (en) * 1982-09-30 1985-07-02 Conrad Roblejo Hydropropulsion catheter and method for removing urinary blockages
US4531934A (en) * 1982-04-13 1985-07-30 Gorkovsky Gosudarstvenny Meditsinsky Institute Imini S.M. Kirova Apparatus for the fragmentation and aspiration of ocular tissue
US5344395A (en) * 1989-11-13 1994-09-06 Scimed Life Systems, Inc. Apparatus for intravascular cavitation or delivery of low frequency mechanical energy
US5441527A (en) * 1992-02-20 1995-08-15 Amei Technologies Inc. Implantable bone growth stimulator and method of operation
US5524624A (en) * 1994-05-05 1996-06-11 Amei Technologies Inc. Apparatus and method for stimulating tissue growth with ultrasound
US5565005A (en) * 1992-02-20 1996-10-15 Amei Technologies Inc. Implantable growth tissue stimulator and method operation
WO1997017933A1 (en) * 1995-11-15 1997-05-22 Aeropag Usa, Inc. Method of spraying a surface using ultrasonic radiation
US20030236560A1 (en) * 2001-01-12 2003-12-25 Eilaz Babaev Ultrasonic method and device for wound treatment
US20060100636A1 (en) * 2004-03-09 2006-05-11 Duran Yetkinler Use of vibration in composite fixation
US20070299454A1 (en) * 2003-09-11 2007-12-27 Skeletal Kinetics, Llc Use of vibration with orthopedic cements
US20090043248A1 (en) * 2007-01-04 2009-02-12 Celleration, Inc. Removable multi-channel applicator nozzle
US20090177123A1 (en) * 2007-12-28 2009-07-09 Celleration, Inc. Methods for treating inflammatory disorders
US20100022919A1 (en) * 2008-07-22 2010-01-28 Celleration, Inc. Methods of Skin Grafting Using Ultrasound
US20110230795A1 (en) * 2001-01-12 2011-09-22 Eilaz Babaev Ultrasonic method and device for wound treatment
US20140378947A1 (en) * 2012-02-14 2014-12-25 Tohoku University Water jet spray nozzle, water jet spray device, cleaning method using water jet, gastrointestinal tract cleaning device, and gastric wall cleaning device
US9707024B2 (en) 2004-03-09 2017-07-18 Skeletal Kinetics, Llc Use of vibration in composite fixation
US9943358B2 (en) 2014-06-09 2018-04-17 Covidien Lp Method for ferromagnetic clamping and cutting in a portable medical device
US11224767B2 (en) 2013-11-26 2022-01-18 Sanuwave Health, Inc. Systems and methods for producing and delivering ultrasonic therapies for wound treatment and healing

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JPS56160643U (en) * 1980-05-01 1981-11-30
US4492574A (en) * 1983-04-15 1985-01-08 Cavitron, Inc. Ultrasonic endodontic dental apparatus

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US3547110A (en) * 1968-04-18 1970-12-15 Ultrasonic Systems Method and apparatus for maintaining tooth and gingival structures with ultrasonic energy
US3565062A (en) * 1968-06-13 1971-02-23 Ultrasonic Systems Ultrasonic method and apparatus for removing cholesterol and other deposits from blood vessels and the like
US3618594A (en) * 1970-04-06 1971-11-09 Surgical Design Corp Ultrasonic apparatus for retinal reattachment
US3636947A (en) * 1970-12-03 1972-01-25 Ultrasonic Systems Ultrasonic home dental instrument and method

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Publication number Priority date Publication date Assignee Title
US3547110A (en) * 1968-04-18 1970-12-15 Ultrasonic Systems Method and apparatus for maintaining tooth and gingival structures with ultrasonic energy
US3565062A (en) * 1968-06-13 1971-02-23 Ultrasonic Systems Ultrasonic method and apparatus for removing cholesterol and other deposits from blood vessels and the like
US3618594A (en) * 1970-04-06 1971-11-09 Surgical Design Corp Ultrasonic apparatus for retinal reattachment
US3636947A (en) * 1970-12-03 1972-01-25 Ultrasonic Systems Ultrasonic home dental instrument and method

Cited By (27)

* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
JPS4968584A (en) 1974-07-03
CH573744A5 (en) 1976-03-31
JPS5549854B2 (en) 1980-12-15
NL7216966A (en) 1974-03-15
FR2199263A5 (en) 1974-04-05
DE2337143A1 (en) 1974-03-28

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