US20090024076A1 - Nozzle for ultrasound wound treatment - Google Patents
Nozzle for ultrasound wound treatmentDownload PDFInfo
- Publication number
- US20090024076A1 US20090024076A1US12/217,775US21777508AUS2009024076A1US 20090024076 A1US20090024076 A1US 20090024076A1US 21777508 AUS21777508 AUS 21777508AUS 2009024076 A1US2009024076 A1US 2009024076A1
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- Prior art keywords
- nozzle
- reservoir
- main body
- fluid
- wound
- 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.)
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- 206010052428WoundDiseases0.000titleclaimsabstractdescription43
- 208000027418Wounds and injuryDiseases0.000titleclaimsabstractdescription43
- 238000011282treatmentMethods0.000titleclaimsabstractdescription21
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- 230000005484gravityEffects0.000claimsdescription5
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- QVGXLLKOCUKJST-UHFFFAOYSA-Natomic oxygenChemical compound[O]QVGXLLKOCUKJST-UHFFFAOYSA-N0.000description3
- 239000001301oxygenSubstances0.000description3
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- 241000894006BacteriaSpecies0.000description2
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Images
Classifications
- 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
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
- 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
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- 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
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/001—Particle size control
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/05—General characteristics of the apparatus combined with other kinds of therapy
- A61M2205/058—General characteristics of the apparatus combined with other kinds of therapy with ultrasound therapy
Definitions
- the present inventionrelates to a device for using ultrasonic waves in wound treatment. More particularly, the present invention relates to a device for spraying a wound surface using ultrasonic waves for delivering drugs, killing bacteria, cleansing a surface, and stimulating healthy tissue cells.
- Ultrasonic waveshave been widely used in medical applications, including both diagnostics and therapy as well as in many industrial applications.
- One diagnostic use of ultrasound wavesincludes using ultrasonic waves to detect underlying structures in an object or a human tissue.
- an ultrasonic transduceris placed in contact with the object or tissue via a coupling medium and high frequency (1-10 MHz) ultrasonic waves are directed into the tissue.
- the wavesare reflected back to a receiver adjacent to the transducer.
- an image of the underlying structurecan be produced. This technique is particularly useful for identifying boundaries between components of tissue and can be used to detect irregular masses, tumors and the like.
- Aerosol mist productionmakes use of a nebulizer or inhaler to produce an aerosol mist for creating a humid environment and delivering drugs to the lungs.
- Ultrasonic nebulizersoperate by the passage of ultrasound waves of sufficient intensity through a liquid, the waves being directed at an air-liquid interface of the liquid from a point underneath or within the liquid. Liquid particles are ejected from the surface of the liquid into the surrounding air following the disintegration of capillary waves produced by the ultrasound. This technique can produce a very fine dense fog or mist.
- Aerosol mists produced by ultrasoundare preferred over aerosol mists produced by other methods because a smaller particle size of the aerosol can be obtained with the ultrasonic waves.
- One of the major shortcomings of inhalers and nebulizersis that the aerosol mist cannot be directed to a target area without an air stream which decreases the efficiency of ultrasound.
- Ultrasonic sprayerssuch as those sold by Sonic and Materials Inc., Misonix Inc., Sono-Tek Inc., and Zevex International, Inc. (see, for example, U.S. Pat. Nos. 2,765,606, 4,659,014, 5,104,042, 4,930,700, 4,153,201, 4,655,393, 5,516,043, 5,835,678, 5,879,364, and 5,843,139) operate by passing liquid through a central orifice of an ultrasound instrument-tip. These ultrasonic devices do not have and do not need any removable nozzles to create a liquid spray.
- Ultrasonic inhalers and drug delivery systems from Medisonic USA, Inc., 3M, Siemens Gmb, The Procter & Gamble Company, Sheffield Pharmaceuticals, and Aradigm, Inc.(see, for example, U.S. Pat. Nos. 4,294,407, 5,347,998, 5,520,166, 5,960,792, 6,095,141, 6,102,298, 6,098,620, 6,026,808, and 6,106,547) operate by atomizing liquid using piezoceramic film.
- some inhalers and delivery systemsuse nozzles, the nozzles are just for directing the atomized liquid to the mouth by touching the lips. These nozzles do not create any spray, and the inhaler and drug delivery systems can work without them.
- the present inventionrelates to a device using ultrasonic waves to create, direct and deliver liquid aerosol spray to a wound surface. More particularly, the present invention relates to an emission device comprising a nozzle which is a preferably cylindrical, but optionally can be multiangular, from the inside and is cylindrical, rectangular or multiangular from the outside distal end; a liquid reservoir; and a different shaped proximal end to be removably attached to ultrasound transducer.
- the liquid reservoiris provided with a valve, which works as a dispenser and allows liquid to reach the ultrasound tip as drops or via continuous flow through an orifice and a gap.
- the proximal end of the nozzlecan be connected to the transducer housing in a variety of different ways, such as by threads, bolts or screwed on, snap/friction fit, or by other means.
- the liquid reservoir portion of the nozzlecan be attached to the top, side, or bottom of the nozzle body or located outside the nozzle body. Liquid from the reservoir may be delivered under gravity, or by motorized pump.
- the liquid reservoircan be elastic or rigid, with or without a cover, and can be made from a variety of different materials, such as, for example, metal, plastic, rubber, ceramic, or other suitable material, and is provided with metered dose device or a liquid dispenser.
- the liquid reservoircan provide the free end of an ultrasound transducer tip with liquid/solution directly from inside the distal end of the nozzle, or through an orifice or a tube from the front end of the nozzle.
- the nozzlecan be provided with two, three or more reservoirs or tubes, for mixing different liquids, drugs or liquid(s) with gas.
- salinecan be mixed with oxygen and used to treat a wound.
- Gas and liquidcan be delivered separately from the top, side and bottom of the distal end of the ultrasound transducer to be mixed and sprayed on the wound surface.
- the valve part of the nozzlecan be located between the reservoir and nozzle body, inside of the reservoir, or inside of the nozzle.
- the nozzlecan optionally be provided with a trigger connecting and operating the valve. This design allows a user to operate the device with one hand.
- the triggercan be located on the top, side or bottom of the nozzle.
- the nozzlecan work without a valve, if, for example, the reservoir is made from an elastic rubber material. In this case liquid from the reservoir is delivered by squeezing the elastic reservoir.
- the main body and distal end of the nozzlemay be cylindrical, oval, elliptic, conical, rectangular or multiangular from the inside.
- the main body and distal end of the nozzlecan be any shape such as, for example, a cylinder, cut cylinder, cone, cut cone, concave, double cut, rectangular, multiangular or a combination of these shapes.
- the proximal end of the nozzlecan be any shape, but must be removably attachable to the ultrasound transducer, for example, via threads, friction fit, screws, slots, spline, or other means.
- the shape of the distal end of the nozzle as viewed from the horizontal sidecan be cylindrical, a cut cylinder, conical, a double cut cylinder or cone, spherical, elliptic/oval or curved, multiangular, waved or a combination of these shapes.
- ultrasound wound treatment nozzlecan be comprised of many different parts, such as a body/housing, reservoir, valve, and dispenser, or formed in one solid part.
- FIG. 1is a cross-sectional view of a side elevation of a preferred embodiment of the nozzle and fluid reservoir for ultrasound wound treatment according to the invention.
- FIG. 2 ais a cross-sectional view of the nozzle of FIG. 1 with the liquid reservoir located in the preferred top position.
- FIG. 2 bis a cross-sectional end view of the nozzle of FIG. 1 with the liquid reservoir located in the side position.
- FIG. 2 cis another cross-sectional view of the nozzle of FIG. 1 with the liquid reservoir located in the bottom position.
- FIG. 2 dis another cross-sectional view of the nozzle of FIG. 1 with the liquid reservoir located to one side of the preferred top position.
- FIG. 3 ais a cross-sectional elevation view of the nozzle of FIG. 1 with the reservoir providing the tip of the nozzle with liquid directly from inside.
- FIG. 3 bis another cross-sectional elevation view of the nozzle of FIG. 1 with the reservoir providing the tip of the nozzle with liquid through an orifice or tube from the front end of the nozzle.
- FIG. 4 ais a cross-sectional view of the nozzle of FIG. 1 showing the nozzle with multiple liquid entry points.
- FIG. 4 bis top plan view of the nozzle according to the invention showing three liquid/fluid reservoirs located side by side.
- FIG. 4 cis a cross-sectional end elevation view of the nozzle depicted in FIGS. 4 a and 4 b showing the three reservoirs located side by side with three separate entry points located at different points around the nozzle.
- FIG. 5 ais a cross-sectional elevation view of the nozzle of FIG. 1 showing the control valve located within the housing of the liquid reservoirs.
- FIG. 5 bis a cross-sectional elevation view of the nozzle of FIG. 1 showing the control valve located outside the body of the liquid reservoir, but within the body housing of the nozzle.
- FIG. 5 cis a cross-sectional elevation view of the nozzle of FIG. 1 showing the control valve located at various points along the transfer tube.
- FIG. 6is a cross-sectional elevation view of the nozzle of FIG. 1 showing the liquid reservoir in the bottom position without a control valve, where the fluid is delivered via squeezing on a flexible liquid reservoir.
- FIG. 7is a cross-sectional side elevation view of the nozzle of FIG. 1 with the fluid reservoir in the top position employing a trigger to open/close the control valve.
- FIG. 8 ais a cross-sectional elevation of the nozzle of FIG. 1 showing the distal end of the nozzle with a cylindrical shape.
- FIG. 8 bis a cross-sectional elevation of the nozzle of FIG. 1 showing the distal end of the nozzle with an oval shape.
- FIG. 8 cis a cross-sectional elevation of the nozzle of FIG. 1 showing the distal end of the nozzle with a conical shape.
- FIG. 8 dis a cross-sectional end view of the nozzle of FIG. 1 showing the distal end with a rectangular section.
- FIG. 8 eis a cross-sectional end view of the nozzle of FIG. 1 showing the distal end of the nozzle with a multiangular section.
- FIG. 8 fis a cross-sectional end view of the nozzle of FIG. 1 showing the distal end of the nozzle with an oval section.
- FIG. 9 ais a cross-sectional elevation view of the nozzle of FIG. 1 showing the outside shape of the nozzle as a cylinder.
- FIG. 9 bis a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle as a flared cylinder.
- FIG. 9 cis a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle having a conical distal end.
- FIG. 9 dis a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with a concave distal end.
- FIG. 9 eis a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with a double cut profile.
- FIG. 9 fis a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with an oval profile.
- FIG. 10 ais a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a rectangular cut shape.
- FIG. 10 bis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a cylindrical cut shape.
- FIG. 10 cis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a conical cut shape.
- FIG. 10 dis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a spherical elliptical oval cut shape.
- FIG. 10 eis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a concave cut shape.
- FIG. 10 fis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a convex shape.
- FIG. 10 gis a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a double cut shape.
- FIG. 10 his a cross-sectional elevation view of the nozzle of FIG. 1 showing the distal end of the nozzle with a waved cut shape.
- FIG. 11is a cross-sectional elevation view of one preferred embodiment of a self destructing disposable nozzle according to the invention.
- the present inventionis a device which uses ultrasonic waves to create, direct and deliver liquid spray to a wound surface comprising a nozzle.
- the nozzle for ultrasound wound treatmentincludes a nozzle body having a proximal end which can be removably attached to an ultrasound transducer, the distal end of said nozzle body to be adjacent to the ultrasound transducer tip.
- the nozzlecomprises a generally cylindrical main body and a reservoir in which wound treatment liquid/solution is filled and a valve for dispensing and delivering the liquid/solution to the distal end of ultrasound tip.
- FIG. 1depicts a cross-sectional view of a side elevation of a preferred embodiment of the nozzle for ultrasound wound treatment, with a main body 10 of the nozzle, a wound treatment liquid/solution reservoir 12 , and a retaining wound treatment liquid/solution 14 which is inter-connected via a tube 16 , controlled by a valve 18 to deliver a supply of treatment liquid/solution droplets 24 to the distal end of an ultrasound tip 20 of an ultrasound transducer 22 .
- Wound treatment liquid 14 from reservoir 12is dispensed and delivered by valve 18 to contact distal end of ultrasound tip 20 and spray onto the wound surface.
- FIGS. 2 a )- d )illustrate possible locations of liquid reservoir 12 relative to nozzle body 10 .
- the preferred location of reservoir 12is on the top of nozzle body 10 , as illustrated in FIG. 2 a ), since this arrangement is most convenient, easy to handle and space-saving.
- Reservoir 12may optionally be provided with a cover.
- FIGS. 3 a ) and b )depict alternative cross-sectional views of nozzle body 10 and reservoir 12 , providing ultrasound tip 20 with liquid/solution directly and through orifice tube 16 .
- FIGS. 4 a )- ccollectively depict side and end elevation views and top views of a three reservoir system for mixing different liquids, drugs, or liquids and gases, for example, saline with oxygen, and treating a wound. Shown are nozzle body 10 and multiple liquid/fluid reservoirs 12 , with liquid/fluid treatments 14 being fed via tubes 16 and controlled by valves 18 .
- Gas and liquidcan be delivered separately from the top, side and bottom of the distal end of the ultrasound transducer to be mixed and sprayed on the wound surface.
- This designallows one to mix different liquids and/or liquids with gas, such as saline or an antibiotic with oxygen during wound treatment, without the use of high pressure, which is required with other mixing methods.
- FIGS. 5 a )- ccollectively depict various locations for the placement of valve 18 between reservoir 12 and tube 16 which delivers liquid/fluid to the distal end of ultrasound transducer tip 20 .
- valve 18should be located as close as possible to the distal end of the ultrasound transducer tip 20 . For this reason, the most preferred location is as shown in FIG. 5 b ).
- FIG. 6depicts a cross-sectional elevation view of another preferred embodiment of the nozzle of the invention without valve 18 .
- reservoir 12must be constructed of an elastic material and liquid 14 will be delivered to the ultrasound transducer tip 20 by squeezing the walls of reservoir 12 .
- Reservoir 12can be rigid, but liquid must the reach the ultrasound tip 20 using a different means.
- FIG. 7depicts a cross-sectional elevation view of nozzle body 10 with a trigger 26 , which is connected and operates valve 18 , thus dispensing and changing liquid flow.
- FIGS. 8 a )- fcollectively depict various alternative preferred nozzle 10 geometries.
- the shape of the distal end of nozzle 10 from insidecan be cylindrical, as shown in FIG. 8 a ), conical, as shown in FIGS. 8 b ) and c ), (back or forward), rectangular, as shown in FIG. 8 d ), multiangular, as shown in FIG. 8 e ), elliptic-oval as shown in FIG. 8 f ), or a combination of different shapes.
- the most preferred shapeis cylindrical because of the uniform gap created between distal end of nozzle 10 and cylindrical ultrasound tip 20 , with this shape.
- FIGS. 9 a )- fcollectively depict various alternative preferred nozzle 10 geometries from the outside.
- the shape of the distal end of nozzle 10 from outsidecan be cylindrical, as shown in FIG. 9 a ), conical as depicted in FIGS. 9 b )- c ), rectangular as shown in FIG. 9 ), multiangular as shown in FIG. 9 e ), elliptic/oval as shown in FIG. 9 f ) or a combination of different shapes.
- FIGS. 10 a )- hdepict cross-sectional elevational views of the distal end of nozzle showing the different shapes possible, a rectangle as shown in FIG. 10 a ), cut cylinder as shown in FIGS. 10 b )- c ), spherical/elliptic/oval as shown in FIG. 10 d ), concave as shown in FIG. 10 e ), convex as shown in FIG. 10 f ), double cut as shown in FIG. 10 g ), waved as shown in FIG. 10 h ) or a combination of different shapes.
- FIG. 11shown is one preferred embodiment of a self-destructing disposable nozzle fabricated from one-piece plastic.
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Abstract
Description
- The present invention relates to a device for using ultrasonic waves in wound treatment. More particularly, the present invention relates to a device for spraying a wound surface using ultrasonic waves for delivering drugs, killing bacteria, cleansing a surface, and stimulating healthy tissue cells.
- Ultrasonic waves have been widely used in medical applications, including both diagnostics and therapy as well as in many industrial applications. One diagnostic use of ultrasound waves includes using ultrasonic waves to detect underlying structures in an object or a human tissue. In this procedure, an ultrasonic transducer is placed in contact with the object or tissue via a coupling medium and high frequency (1-10 MHz) ultrasonic waves are directed into the tissue. Upon contact with the various underlying structures, the waves are reflected back to a receiver adjacent to the transducer. By comparison of the signals of the ultrasonic wave as sent with the reflected ultrasonic wave as received, an image of the underlying structure can be produced. This technique is particularly useful for identifying boundaries between components of tissue and can be used to detect irregular masses, tumors and the like.
- Two therapeutic medical uses of ultrasound waves include aerosol mist production and contact physiotherapy. Aerosol mist production makes use of a nebulizer or inhaler to produce an aerosol mist for creating a humid environment and delivering drugs to the lungs. Ultrasonic nebulizers operate by the passage of ultrasound waves of sufficient intensity through a liquid, the waves being directed at an air-liquid interface of the liquid from a point underneath or within the liquid. Liquid particles are ejected from the surface of the liquid into the surrounding air following the disintegration of capillary waves produced by the ultrasound. This technique can produce a very fine dense fog or mist. Aerosol mists produced by ultrasound are preferred over aerosol mists produced by other methods because a smaller particle size of the aerosol can be obtained with the ultrasonic waves. One of the major shortcomings of inhalers and nebulizers is that the aerosol mist cannot be directed to a target area without an air stream which decreases the efficiency of ultrasound.
- Ultrasonic sprayers such as those sold by Sonic and Materials Inc., Misonix Inc., Sono-Tek Inc., and Zevex International, Inc. (see, for example, U.S. Pat. Nos. 2,765,606, 4,659,014, 5,104,042, 4,930,700, 4,153,201, 4,655,393, 5,516,043, 5,835,678, 5,879,364, and 5,843,139) operate by passing liquid through a central orifice of an ultrasound instrument-tip. These ultrasonic devices do not have and do not need any removable nozzles to create a liquid spray.
- Ultrasonic inhalers and drug delivery systems from Medisonic USA, Inc., 3M, Siemens Gmb, The Procter & Gamble Company, Sheffield Pharmaceuticals, and Aradigm, Inc. (see, for example, U.S. Pat. Nos. 4,294,407, 5,347,998, 5,520,166, 5,960,792, 6,095,141, 6,102,298, 6,098,620, 6,026,808, and 6,106,547) operate by atomizing liquid using piezoceramic film. Although some inhalers and delivery systems use nozzles, the nozzles are just for directing the atomized liquid to the mouth by touching the lips. These nozzles do not create any spray, and the inhaler and drug delivery systems can work without them.
- It is an object of this invention to provide an improved device for treating wounds.
- It is also an object of this invention to provide an improved device for treating wounds using ultrasonic waves.
- It is a further object of the invention to provide a device for creating, directing and delivering liquid aerosol spray to a wound surface.
- It is yet a further object of the invention to provide a device for creating ultrasonic waves and delivering drugs, killing bacteria, cleansing a surface, and/or stimulating healthy tissue.
- These and other objects of the invention will become more apparent from the more detailed discussion below.
- The present invention relates to a device using ultrasonic waves to create, direct and deliver liquid aerosol spray to a wound surface. More particularly, the present invention relates to an emission device comprising a nozzle which is a preferably cylindrical, but optionally can be multiangular, from the inside and is cylindrical, rectangular or multiangular from the outside distal end; a liquid reservoir; and a different shaped proximal end to be removably attached to ultrasound transducer.
- The liquid reservoir is provided with a valve, which works as a dispenser and allows liquid to reach the ultrasound tip as drops or via continuous flow through an orifice and a gap.
- The proximal end of the nozzle can be connected to the transducer housing in a variety of different ways, such as by threads, bolts or screwed on, snap/friction fit, or by other means.
- The liquid reservoir portion of the nozzle can be attached to the top, side, or bottom of the nozzle body or located outside the nozzle body. Liquid from the reservoir may be delivered under gravity, or by motorized pump. The liquid reservoir can be elastic or rigid, with or without a cover, and can be made from a variety of different materials, such as, for example, metal, plastic, rubber, ceramic, or other suitable material, and is provided with metered dose device or a liquid dispenser.
- The liquid reservoir can provide the free end of an ultrasound transducer tip with liquid/solution directly from inside the distal end of the nozzle, or through an orifice or a tube from the front end of the nozzle.
- The nozzle can be provided with two, three or more reservoirs or tubes, for mixing different liquids, drugs or liquid(s) with gas. For example, saline can be mixed with oxygen and used to treat a wound. Gas and liquid can be delivered separately from the top, side and bottom of the distal end of the ultrasound transducer to be mixed and sprayed on the wound surface.
- The valve part of the nozzle can be located between the reservoir and nozzle body, inside of the reservoir, or inside of the nozzle. The nozzle can optionally be provided with a trigger connecting and operating the valve. This design allows a user to operate the device with one hand. The trigger can be located on the top, side or bottom of the nozzle.
- The nozzle can work without a valve, if, for example, the reservoir is made from an elastic rubber material. In this case liquid from the reservoir is delivered by squeezing the elastic reservoir.
- The main body and distal end of the nozzle may be cylindrical, oval, elliptic, conical, rectangular or multiangular from the inside.
- From the outside, the main body and distal end of the nozzle can be any shape such as, for example, a cylinder, cut cylinder, cone, cut cone, concave, double cut, rectangular, multiangular or a combination of these shapes.
- The proximal end of the nozzle can be any shape, but must be removably attachable to the ultrasound transducer, for example, via threads, friction fit, screws, slots, spline, or other means.
- The shape of the distal end of the nozzle as viewed from the horizontal side can be cylindrical, a cut cylinder, conical, a double cut cylinder or cone, spherical, elliptic/oval or curved, multiangular, waved or a combination of these shapes.
- Finally the ultrasound wound treatment nozzle can be comprised of many different parts, such as a body/housing, reservoir, valve, and dispenser, or formed in one solid part.
- While the invention has been described in general terms, the construction and obvious advantages of the device will be more clearly understood with reference to the following description of the various specific embodiments when read in conjunction with the accompanying drawings.
FIG. 1 is a cross-sectional view of a side elevation of a preferred embodiment of the nozzle and fluid reservoir for ultrasound wound treatment according to the invention.FIG. 2 a) is a cross-sectional view of the nozzle ofFIG. 1 with the liquid reservoir located in the preferred top position.FIG. 2 b) is a cross-sectional end view of the nozzle ofFIG. 1 with the liquid reservoir located in the side position.FIG. 2 c) is another cross-sectional view of the nozzle ofFIG. 1 with the liquid reservoir located in the bottom position.FIG. 2 d) is another cross-sectional view of the nozzle ofFIG. 1 with the liquid reservoir located to one side of the preferred top position.FIG. 3 a) is a cross-sectional elevation view of the nozzle ofFIG. 1 with the reservoir providing the tip of the nozzle with liquid directly from inside.FIG. 3 b) is another cross-sectional elevation view of the nozzle ofFIG. 1 with the reservoir providing the tip of the nozzle with liquid through an orifice or tube from the front end of the nozzle.FIG. 4 a) is a cross-sectional view of the nozzle ofFIG. 1 showing the nozzle with multiple liquid entry points.FIG. 4 b) is top plan view of the nozzle according to the invention showing three liquid/fluid reservoirs located side by side.FIG. 4 c) is a cross-sectional end elevation view of the nozzle depicted inFIGS. 4 aand4bshowing the three reservoirs located side by side with three separate entry points located at different points around the nozzle.FIG. 5 a) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the control valve located within the housing of the liquid reservoirs.FIG. 5 b) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the control valve located outside the body of the liquid reservoir, but within the body housing of the nozzle.FIG. 5 c) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the control valve located at various points along the transfer tube.FIG. 6 is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the liquid reservoir in the bottom position without a control valve, where the fluid is delivered via squeezing on a flexible liquid reservoir.FIG. 7 is a cross-sectional side elevation view of the nozzle ofFIG. 1 with the fluid reservoir in the top position employing a trigger to open/close the control valve.FIG. 8 a) is a cross-sectional elevation of the nozzle ofFIG. 1 showing the distal end of the nozzle with a cylindrical shape.FIG. 8 b) is a cross-sectional elevation of the nozzle ofFIG. 1 showing the distal end of the nozzle with an oval shape.FIG. 8 c) is a cross-sectional elevation of the nozzle ofFIG. 1 showing the distal end of the nozzle with a conical shape.FIG. 8 d) is a cross-sectional end view of the nozzle ofFIG. 1 showing the distal end with a rectangular section.FIG. 8 e) is a cross-sectional end view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a multiangular section.FIG. 8 f) is a cross-sectional end view of the nozzle ofFIG. 1 showing the distal end of the nozzle with an oval section.FIG. 9 a) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the outside shape of the nozzle as a cylinder.FIG. 9 b) is a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle as a flared cylinder.FIG. 9 c) is a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle having a conical distal end.FIG. 9 d) is a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with a concave distal end.FIG. 9 e) is a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with a double cut profile.FIG. 9 f) is a cross-sectional elevation view of the nozzle of the invention showing the outside of the nozzle with an oval profile.FIG. 10 a) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a rectangular cut shape.FIG. 10 b) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a cylindrical cut shape.FIG. 10 c) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a conical cut shape.FIG. 10 d) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a spherical elliptical oval cut shape.FIG. 10 e) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a concave cut shape.FIG. 10 f) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a convex shape.FIG. 10 g) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a double cut shape.FIG. 10 h) is a cross-sectional elevation view of the nozzle ofFIG. 1 showing the distal end of the nozzle with a waved cut shape.FIG. 11 is a cross-sectional elevation view of one preferred embodiment of a self destructing disposable nozzle according to the invention.- The present invention is a device which uses ultrasonic waves to create, direct and deliver liquid spray to a wound surface comprising a nozzle. The nozzle for ultrasound wound treatment includes a nozzle body having a proximal end which can be removably attached to an ultrasound transducer, the distal end of said nozzle body to be adjacent to the ultrasound transducer tip. The nozzle comprises a generally cylindrical main body and a reservoir in which wound treatment liquid/solution is filled and a valve for dispensing and delivering the liquid/solution to the distal end of ultrasound tip.
- The invention can perhaps be better appreciated from the drawings. A nozzle for ultrasound wound treatment according to the present invention is illustrated in
FIG. 1 . More particularly,FIG. 1 depicts a cross-sectional view of a side elevation of a preferred embodiment of the nozzle for ultrasound wound treatment, with amain body 10 of the nozzle, a wound treatment liquid/solution reservoir 12, and a retaining wound treatment liquid/solution 14 which is inter-connected via atube 16, controlled by avalve 18 to deliver a supply of treatment liquid/solution droplets 24 to the distal end of anultrasound tip 20 of anultrasound transducer 22.Wound treatment liquid 14 fromreservoir 12 is dispensed and delivered byvalve 18 to contact distal end ofultrasound tip 20 and spray onto the wound surface. FIGS. 2 a)-d) illustrate possible locations ofliquid reservoir 12 relative tonozzle body 10. The preferred location ofreservoir 12 is on the top ofnozzle body 10, as illustrated inFIG. 2 a), since this arrangement is most convenient, easy to handle and space-saving.Reservoir 12 may optionally be provided with a cover.FIGS. 3 a) andb) depict alternative cross-sectional views ofnozzle body 10 andreservoir 12, providingultrasound tip 20 with liquid/solution directly and throughorifice tube 16.FIGS. 4 a)-c), collectively depict side and end elevation views and top views of a three reservoir system for mixing different liquids, drugs, or liquids and gases, for example, saline with oxygen, and treating a wound. Shown arenozzle body 10 and multiple liquid/fluid reservoirs 12, with liquid/fluid treatments 14 being fed viatubes 16 and controlled byvalves 18.- Gas and liquid can be delivered separately from the top, side and bottom of the distal end of the ultrasound transducer to be mixed and sprayed on the wound surface. This design allows one to mix different liquids and/or liquids with gas, such as saline or an antibiotic with oxygen during wound treatment, without the use of high pressure, which is required with other mixing methods.
FIGS. 5 a)-c), collectively depict various locations for the placement ofvalve 18 betweenreservoir 12 andtube 16 which delivers liquid/fluid to the distal end ofultrasound transducer tip 20.- To avoid liquid loss during dispensing, the distance from
valve 18 to the distal end ofultrasound transducer tip 20 should be minimized. This means thatvalve 18 should be located as close as possible to the distal end of theultrasound transducer tip 20. For this reason, the most preferred location is as shown inFIG. 5 b). FIG. 6 depicts a cross-sectional elevation view of another preferred embodiment of the nozzle of the invention withoutvalve 18. In thisconfiguration reservoir 12 must be constructed of an elastic material and liquid14 will be delivered to theultrasound transducer tip 20 by squeezing the walls ofreservoir 12.Reservoir 12 can be rigid, but liquid must the reach theultrasound tip 20 using a different means.FIG. 7 depicts a cross-sectional elevation view ofnozzle body 10 with atrigger 26, which is connected and operatesvalve 18, thus dispensing and changing liquid flow.FIGS. 8 a)-f), collectively depict various alternativepreferred nozzle 10 geometries. The shape of the distal end ofnozzle 10 from inside can be cylindrical, as shown inFIG. 8 a), conical, as shown inFIGS. 8 b) andc), (back or forward), rectangular, as shown inFIG. 8 d), multiangular, as shown inFIG. 8 e), elliptic-oval as shown inFIG. 8 f), or a combination of different shapes. The most preferred shape is cylindrical because of the uniform gap created between distal end ofnozzle 10 andcylindrical ultrasound tip 20, with this shape.FIGS. 9 a)-f), collectively depict various alternativepreferred nozzle 10 geometries from the outside. The shape of the distal end ofnozzle 10 from outside can be cylindrical, as shown inFIG. 9 a), conical as depicted inFIGS. 9 b)-c), rectangular as shown inFIG. 9 ), multiangular as shown inFIG. 9 e), elliptic/oval as shown inFIG. 9 f) or a combination of different shapes.FIGS. 10 a)-h) depict cross-sectional elevational views of the distal end of nozzle showing the different shapes possible, a rectangle as shown inFIG. 10 a), cut cylinder as shown inFIGS. 10 b)-c), spherical/elliptic/oval as shown inFIG. 10 d), concave as shown inFIG. 10 e), convex as shown inFIG. 10 f), double cut as shown inFIG. 10 g), waved as shown inFIG. 10 h) or a combination of different shapes.- With reference to
FIG. 11 , shown is one preferred embodiment of a self-destructing disposable nozzle fabricated from one-piece plastic. Atrigger 30 with aneedle valve 32 connected withreservoir 12 at apoint 34 in closing position. Afterreservoir 12 is filled with liquid and positioning at the wound, trigger30 isdepressed opening valve 32 by lifting. Because of the rigid connection oftrigger 30 toreservoir 12, after pushingtrigger 30 gets broken atpoint 34, and after the first procedure is done, will no longer retain the liquid inreservoir 12. Thus, this becomes a one use disposable reservoir/nozzle arrangement. - The preceding specific embodiments are illustrative of the practice of the invention. It is to be understood, however, that other expedients known to those skilled in the art or disclosed herein, may be employed without departing from the spirit of the invention or the scope of the appended claims.
Claims (48)
1-43. (canceled)
44. A method for treating a wound comprising:
providing an ultrasound transducer having an ultrasound transducer tip to emit ultrasonic energy in proximity to the surface of the wound;
providing a nozzle having a main body, the main body having a proximal end that removably attaches to a housing of the transducer, the main body having a distal end positioned at a distance from a distal end of the ultrasound transducer tip, the main body defining an opening for delivering a fluid to the ultrasound transducer tip for producing a spray;
delivering the fluid to the ultrasound transducer tip via said opening to produce said spray; and
delivering the emitted ultrasonic energy to the wound through the spray, wherein the spray is delivered through said distal end of said nozzle.
45. The method according toclaim 44 , further comprising the step of storing the fluid within a reservoir in fluid communication with said opening.
46. The method according toclaim 44 , wherein the ultrasonic energy provides a bactericidal and a therapeutic effect for decreasing the healing time for the wound.
47. The method according toclaim 46 , wherein the therapeutic effect is selected from the group consisting of delivering at least one medicament to the wound, cleansing a surface of the wound, and stimulating healthy tissue cells.
48. The method according toclaim 44 , wherein the fluid includes one or more components selected from the group consisting of gas, drugs, liquid, and saline.
49. The method according toclaim 44 , wherein the ultrasonic energy provides a bactericidal effect.
50. A wound treatment device for treating a wound, said device comprising:
an ultrasound transducer having an ultrasound transducer tip for emitting ultrasonic energy; and
a nozzle having a main body, the main body having a proximal end that removably attaches to a housing of the transducer, the main body having a distal end positioned at a distance from a distal end of the ultrasound transducer tip, the main body defining an opening for delivering a fluid to the ultrasound transducer tip for producing a spray, wherein the emitted ultrasonic energy is delivered to the wound through the spray.
51. The device according toclaim 50 , wherein the nozzle comprises a valve for controlling a flow rate of the fluid through said opening.
52. The device according toclaim 50 , further comprising a reservoir storing said fluid and in fluid communication with said opening.
53. The device according toclaim 50 , wherein the ultrasonic energy provides a bactericidal and a therapeutic effect for decreasing the healing time for the wound.
54. The device according toclaim 53 , wherein the therapeutic effect is selected from the group consisting of delivering at least one medicament to the wound, cleansing a surface of the wound, and stimulating healthy tissue cells.
55. The device according toclaim 52 , wherein the fluid includes one or more components selected from the group consisting of gas, drugs, liquid, and saline.
56. The device according toclaim 52 , further comprising a second reservoir in fluid communication with the nozzle.
57. The device according toclaim 52 , further comprising a second reservoir in fluid communication with a second opening defined by the main body of the nozzle.
58. The device according toclaim 52 , further comprising a propagation path in fluid communication with the reservoir and said opening.
59. The method according toclaim 44 , wherein the nozzle includes a reservoir in fluid communication with said opening, and the method further comprises providing the fluid within the reservoir.
60. The device according toclaim 50 , wherein the nozzle includes a reservoir which includes the fluid, and the reservoir is in fluid communication with said opening.
61. The device according toclaim 52 , wherein the reservoir is attached to the top, side, or bottom of the nozzle.
62. The device ofclaim 52 , wherein the main body of the nozzle is connected with the reservoir via a hose or tube.
63. The device according toclaim 60 , wherein the reservoir is attached to the top, side, or bottom of the nozzle.
64. The device ofclaim 70 , wherein the main body of the nozzle is connected with the reservoir via a hose or tube.
65. The device according toclaim 52 , wherein the fluid is delivered from the reservoir by gravity.
66. The device according toclaim 60 , wherein the fluid is delivered from the reservoir by gravity.
67. The device according toclaim 52 , wherein the fluid is delivered from the reservoir by a pump.
68. The device according toclaim 60 , wherein the fluid is delivered from the reservoir by a pump.
69. The device according toclaim 63 , wherein the fluid is delivered from the reservoir by gravity.
70. The device according toclaim 63 , wherein the fluid is delivered from the reservoir by a pump.
71. The device according toclaim 64 , wherein the fluid is delivered from the reservoir by gravity.
72. The device according toclaim 64 , wherein the fluid is delivered from the reservoir by a pump.
73. The device ofclaim 52 , wherein the nozzle is designed for a single use.
74. The device ofclaim 50 , wherein the nozzle is disposable.
75. The device ofclaim 50 , wherein a part of the nozzle is disposable.
76. A removable nozzle for ultrasound wound treatment for producing a spray of liquid using an ultrasound transducer having a tip, comprising:
a main body
the main body having a proximal end that removably attaches to a housing of an
ultrasound transducer, said main body also having a distal end which is marginally close to a distal end of the ultrasound transducer tip, said main body defining an opening and being connected with at least one reservoir, for holding and delivering a wound treatment solution to said ultrasound transducer tip via said opening to produce a spray; wherein said spray is delivered through said nozzle.
a reservoir; and
a valve.
77. The nozzle according toclaim 76 , wherein said main body is connected with two or more reservoirs.
78. The nozzle according toclaim 76 , wherein said valve controls flow rate of fluid through the opening.
79. The nozzle according toclaim 78 , wherein said main body has a trigger for controlling the position of said valve.
80. The nozzle according toclaim 76 , wherein the reservoir is on top of the main body of the nozzle.
81. The nozzle according toclaim 76 , wherein the reservoir is on the bottom of the main body of the nozzle.
82. The nozzle according toclaim 76 , wherein the main body of the nozzle is connected with the reservoir via hose/tube.
83. The nozzle according toclaim 76 , wherein the reservoir is rigidly connected to the main body of the nozzle.
84. The nozzle according toclaim 76 , wherein the valve is located in the main body of the nozzle.
85. The nozzle according toclaim 76 , wherein the valve is located in the reservoir.
86. The nozzle according toclaim 76 , wherein the valve is located between the reservoir and the main body of the nozzle.
87. The nozzle according toclaim 76 , wherein the nozzle is sterile.
88. The nozzle according toclaim 76 , wherein the nozzle is sterilizable.
89. The nozzle according toclaim 76 , wherein the nozzle is disposable.
90. The nozzle according toclaim 76 , wherein a part of the nozzle is disposable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/217,775US20090024076A1 (en) | 2000-10-06 | 2008-07-07 | Nozzle for ultrasound wound treatment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/684,044US6964647B1 (en) | 2000-10-06 | 2000-10-06 | Nozzle for ultrasound wound treatment |
| US11/207,334US20060025716A1 (en) | 2000-10-06 | 2005-08-18 | Nozzle for ultrasound wound treatment |
| US12/217,775US20090024076A1 (en) | 2000-10-06 | 2008-07-07 | Nozzle for ultrasound wound treatment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/207,334ContinuationUS20060025716A1 (en) | 2000-10-06 | 2005-08-18 | Nozzle for ultrasound wound treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20090024076A1true US20090024076A1 (en) | 2009-01-22 |
Family
ID=24746482
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| US11/207,334AbandonedUS20060025716A1 (en) | 2000-10-06 | 2005-08-18 | Nozzle for ultrasound wound treatment |
| US12/217,775AbandonedUS20090024076A1 (en) | 2000-10-06 | 2008-07-07 | Nozzle for ultrasound wound treatment |
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| Application Number | Title | Priority Date | Filing Date |
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| US09/684,044Expired - LifetimeUS6964647B1 (en) | 2000-10-06 | 2000-10-06 | Nozzle for ultrasound wound treatment |
| US11/207,334AbandonedUS20060025716A1 (en) | 2000-10-06 | 2005-08-18 | Nozzle for ultrasound wound treatment |
Country Status (3)
| Country | Link |
|---|---|
| US (3) | US6964647B1 (en) |
| AU (1) | AU2001296638A1 (en) |
| WO (1) | WO2002028350A2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20060025716A1 (en) | 2006-02-02 |
| AU2001296638A1 (en) | 2002-04-15 |
| WO2002028350A2 (en) | 2002-04-11 |
| WO2002028350A3 (en) | 2003-01-30 |
| WO2002028350A8 (en) | 2002-10-10 |
| US6964647B1 (en) | 2005-11-15 |
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