US20010020146A1 - Skin treatment apparatus and method - Google Patents
Skin treatment apparatus and method Download PDFInfo
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- US20010020146A1 US20010020146A1 US09/772,223 US77222301A US2001020146A1 US 20010020146 A1 US20010020146 A1 US 20010020146A1 US 77222301 A US77222301 A US 77222301A US 2001020146 A1 US2001020146 A1 US 2001020146A1
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- Prior art keywords
- wound
- providing
- skin
- treatment gas
- oxygen
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- NMGSDTSOSIPXTN-UHFFFAOYSA-N C1CC=C=CC1 Chemical compound C1CC=C=CC1 NMGSDTSOSIPXTN-UHFFFAOYSA-N 0.000 description 1
- NFJPEKRRHIYYES-UHFFFAOYSA-N C=C1CCCC1 Chemical compound C=C1CCCC1 NFJPEKRRHIYYES-UHFFFAOYSA-N 0.000 description 1
- 0 CC1C[C@@](*)CC1 Chemical compound CC1C[C@@](*)CC1 0.000 description 1
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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
- A61M35/30—Gas therapy for therapeutic treatment of the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00902—Plasters containing means
- A61F2013/00919—Plasters containing means for physical therapy, e.g. cold or magnetic
Definitions
- the present invention relates generally to the field of skin care, and, more particularly, to devices and methods for treating skin with a combination of a treatment gas and simultaneous neuro-muscular electrical stimulation.
- Loori discloses a collapsible topical hyperbaric apparatus in U.S. Pat. No. 5,154,697.
- a gas inlet tube introduces oxygen to a shell covering the treated area.
- An adhesive sealing ring on the bottom of the unit secures the device to the affected area in conjunction with a belt.
- Neuro-muscular electrical stimulation is the known technique of applying an electrical current to the skin to stimulate the contraction of muscles.
- One known device for performing neuro-muscular electrical stimulation is the RS-2 Muscle Stimulator provided by RS Medical, Inc. of Vancouver, Wash. Neuro-muscular stimulation is used to stimulate the flow of blood to an area of the skin by repeated contraction and relaxation of nearby muscles.
- a method of treating a wound is described herein as including providing a flow of oxygen to the wound while applying an electrical current to the skin proximate the wound.
- the oxygen may be provided through a treatment gas applicator adhered to or positioned proximate the skin.
- the electrical current may be provided through at least one electrode attached to the skin proximate the wound.
- a variety of benefits may be obtained by a method of treating skin including the steps of providing a flow of a treatment gas to a skin surface and applying an electrical current to the skin surface during the step of providing a flow of treatment gas.
- Such benefits may include retarding the aging of skin, reducing wrinkles, stimulating hair growth and improved healing of wounds.
- the application of electrical current to the skin increases the circulation of blood near the skin surface, thereby facilitating the absorption of the treatment gas components into the skin and blood stream.
- a device for delivering a treatment gas to a wound may include a seal gasket adhered to the skin with an age-degradable adhesive.
- the seal gasket may also be used as a base for the repeated application of a grid pattern for photographically measuring the size of a wound over a plurality of time periods. By disposing the grid pattern very close to the wound, the accuracy of the wound measurements is made less sensitive to changes in the height of the camera used to photograph the grid/wound.
- FIG. 1 is a perspective drawing of an embodiment of oxygen application apparatus showing an inflatable dome attached to a skin portion surrounding a wound by a seal gasket, and two stimulation electrodes attached to an oxygen supply hose;
- FIG. 2 is a cross section of the inflatable dome and seal gasket taken along lines 2 - 2 of FIG. 1;
- FIG. 3 is a detail cross section of a vent installed in the membrane of the inflatable dome of the apparatus.
- FIG. 4 is a cross section drawing of a dressing cover used in conjunction with the seal gasket of FIG. 1.
- FIG. 5 is a top view of a wound measuring device that may be used with the apparatus of FIG. 1.
- FIG. 6 is a side sectional view of the wound measuring device of FIG. 5.
- FIG. 7 is a device for applying treatment gas and neuromuscular stimulation to the scalp.
- FIG. 1 is a perspective drawing of treatment apparatus 101 covering a wound area ( 203 of FIG. 2).
- the apparatus consists of an inflatable dome portion 103 attached to surrounding skin portion 105 by seal gasket 107 .
- Oxygen supply hose 109 supplies oxygen to inflatable dome 103 through fitting or nozzle 111 .
- Gas vents 113 vent gasses inside dome 103 to atmosphere.
- Tab 115 promotes removal of dome portion 103 from seal gasket 107 .
- Neuro-muscular stimulation electrodes such as electrode patches 117 provide electrical connections to surrounding skin portion 105 A to promote blood supply to the wound area and further promote healing.
- a power supply 118 supplies electric current to electrode patch 117 through plugs 119 and current carrying conductors or wires 121 .
- Plugs 119 are attached to oxygen supply hose 109 by adhesives, welding, or mechanical connectors. Alternatively, plugs 119 are connected to dome portion 103 .
- a contact adhesive attached to the bottom 117 A of electrode patches 117 attaches the patches to surrounding skin portion 105 A.
- the electrodes 117 may be integrated into the seal gasket assembly 107 .
- FIG. 2 is a cross section drawing of inflatable dome portion 103 taken along lines 2 - 2 of FIG. 1.
- Membrane 205 is a flexible gas barrier providing the structure of dome portion 103 when inflated by a gas such as oxygen, air, an inert gas, nitrogen or other gas appropriate for a specific treatment.
- membrane 205 is made of a polymeric sheet or film such as polyolefin film. Other materials include PVC, fluoropolymers, and natural and synthetic rubber sheets and films.
- membrane 205 is a rigid or semi-rigid material such as plastic, formed in a dome shape.
- Dome peripheral portion 211 may be the peripheral portion of membrane 205 , or it may be a ring-shaped element bonded by adhesives, welding, or fasteners to membrane 205 .
- peripheral portion 211 is flexible to provide sealing with seal gasket 107 on uneven portions of the body.
- Oxygen supply hose 109 provides oxygen flow 206 to dome interior portion 207 through nozzle 111 inserted through an aperture in membrane 205 .
- Nozzle 111 is sealed and attached to membrane 205 by adhesives, welding or mechanical fasteners.
- Gasket 107 seals interior portion 207 of inflatable dome 103 against wound area 203 and surrounding skin portion 105 .
- gasket 107 is a ring-shaped flexible member made of a hypoallergenic polymer material such as MicroSkin available from Cymed.
- upper gasket surface 107 A of seal gasket 107 and lower dome seal surface 209 of dome peripheral portion 211 are releasable and re-sealable with respect to each other.
- the releasable and re-sealable feature of surfaces 107 A and 209 are provided by a releasable and re-sealable contact adhesive 213 fixed to surface 107 A.
- Lower dome seal surface 209 is a smooth seal surface to which adhesive 213 releasably seals surface 107 A.
- adhesive 213 is fixed to lower dome seal surface 209 and adhesive 213 is releasable and re-sealable to surface 107 A.
- Adhesive 213 may be a pressure sensitive adhesive.
- the releasable (non-adhesive) surface may be treated to promote release from the releasable adhesive.
- a second adhesive 215 attaches seal gasket 107 to surrounding skin portion 105 .
- Adhesive 213 is a controlled degradable adhesive.
- second adhesive 215 is an age-degradable, septic and hypoallergenic adhesive.
- age-degradable adhesive is one in which the adhesive capability with the skin decreases with time, either from a direct time dependent process, or a process in which time not an direct, but rather a substantial indirect, factor in the adhesive degradation process.
- the preferred time periods of degradability are those typical for wound healing, i.e. 3-14 days.
- the age-degradable feature may be provided by a hydrocolloid adhesive such as Duoderm, available from ConvaTec. Hydrocolloid-based adhesives maintain adhesion to the skin until moisture saturation of the hydrocolloid component (typically 3-12 days, depending on hydrocolloid content and skin, wound and environmental conditions). The moisture saturation is age or time dependent in that moisture provided to the hydrocolloid component from the wound portion, the surrounding portion, and atmospheric moisture is cumulative with time.
- a hydrocolloid adhesive such as Duoderm, available from ConvaTec.
- Hydrocolloid-based adhesives maintain adhesion to the skin until moisture saturation of the hydrocolloid component (typically 3-12 days, depending on hydrocolloid content and skin, wound and environmental conditions). The moisture saturation is age or time dependent in that moisture provided to the hydrocolloid component from the wound portion, the surrounding portion, and atmospheric moisture is cumulative with time.
- an age-degradable adhesive permits secure fastening of seal gasket 107 to surrounding skin portion 105 for a substantial period of time and sufficient for normal use of the apparatus. Upon age degradation of the adhesive, removal of seal gasket 107 is simple and painless, and completed without damage to the surrounding skin portion.
- adhesive 215 is attached to lower surface 107 B of seal gasket 107 .
- Vents 217 provide restriction of gas entrapped in interior portion 207 , resulting in a positive pressure in portion 207 .
- Positive pressure provides the dome shape of membrane 205 .
- Vents 217 may comprise one or more apertures in membrane 205 such as holes, slots, or perforations.
- Outer layer 219 made of a fabric, mesh or perforated material such as a fine polymeric mesh material, prevents introduction of foreign material into vents 217 while allowing escape of gasses exiting the vents.
- Outer layer 219 may be bonded to membrane 205 by adhesives, welding or fasteners.
- FIG. 3 is a detail drawing of an alternative vent utilizing vent insert 301 attached to membrane 205 .
- Vent 301 may be made of a polymeric, ceramic or metallic material.
- a contamination barrier or vent filter 303 allows venting of gasses 208 inside membrane 205 while preventing foreign material from entering vent 301 .
- Filter 303 may be made of natural or synthetic fiber material, or sintered metal or ceramic materials.
- an inner layer 221 of a sterile material such as sterile gauss may be bonded to the inner side of membrane 205 .
- Inner layer 221 may be a natural or synthetic woven, non-woven or mesh material, or, other dressing materials known in the art.
- Inner layer 221 prevents membrane 205 from sticking to wound area 203 .
- inner layer 221 is a breathable material, allowing covering of vents 217 and/or nozzle 111 and yet permitting flow of treatment gas into interior portion 207 and gasses out of interior portion 207 .
- cutouts or positioning of inner layer 221 prevents covering of vents 217 and/or nozzle 111 .
- dome portion 103 may be a single layer of material, preferably a material that will transmit electromagnetic radiation so that the condition of the underlying wound may be viewed.
- seal gasket 107 is attached to surrounding skin portion 105 surrounding wound area 203 , utilizing an adhesive such as age-degradable adhesive 215 .
- a skin preparation agent may be used to remove contaminates from the skin and provide a thin protective film before application of the age-degradable adhesive. Removal of a peel strip (not shown) exposes releasable adhesive 213 on upper gasket surface 107 A. Releasable adhesive 213 bonds lower dome seal surface 209 of inflatable dome 103 to seal gasket 107 . Alternatively, this may be a mechanical connection.
- the user removes peel strips (not shown) from electrode patches 117 and applies to surrounding skin portion 105 A. Surrounding skin portion 105 A is preferably upstream from a blood supply in relation to the wound so that the electrode patches will promote blood supply to wound area 203 upon energizing the patches.
- dome portion 103 and electrode patches 117 are in place, the operator attaches oxygen hose 109 to a supply of oxygen, and stimulator power supply 118 to plugs 119 . The operator then activates the oxygen supply and stimulator power supply 118 .
- the operator may remove the dome portion by separating lower seal surface 209 of dome portion 103 from upper seal surface 107 A.
- Tab 115 eases removal of dome portion 103 .
- Re-sealable adhesive 213 allows removal and replacement of dome portion 103 without damage to the seal.
- a peel strip protects upper seal surface 107 A when dome portion 103 is removed. Seal gasket 107 remains in place for several installations and removals of dome portion 103 .
- the wound may be cleaned or dressed or treated as directed.
- the wound may be covered by conventional dressings, or a dressing cover as shown in FIG. 4.
- Dressing cover 401 comprises a peripheral portion 403 of flexible material such as a polyolefin ring.
- a sterile dressing 405 covers the opening in peripheral portion 403 .
- An adhesive bonds sterile dressing 405 to peripheral portion 403 .
- Lower dressing seal surface 407 is sealable to upper seal gasket surface 107 A.
- re-sealable adhesive 213 is fixed to dome lower seal surface 209 and lower dressing seal surface 407 .
- the adhesive may be protected by a peel strip.
- oxygen nozzle 111 position provides physical stimulation of the wound by direct impingement of the gas on the wound area. Several nozzles placed to direct gas on the wound area provide additional stimulation.
- inflatable dome 103 may have other shapes such as rectangular, oval or octagonal.
- Placement of the electrode patches on the device reminds the user to connect them and place them correctly;
- the simultaneous application of neuro-muscular stimulation and oxygen is believed to have a generally beneficial effect on the health of the treated skin, including the skin of humans and animals.
- Skin is an aerobic organism and the improved supply of oxygen provided by the present invention may have many beneficial effects.
- a treatment of oxygen and neruo-muscular electrical stimulation was applied periodically to the head of a bald man for between 2-3 hours daily.
- a standard RS Medical, Inc. Model RS-2 stimulator was used at a setting of Grade 6 to provide the electrical stimulation. In less than about 3 months, new hair began growing from the previously bald skin. It is believed that this effect resulted from the improved blood supply provided by the neuro-muscular stimulation in combination with the augmented oxygen made available to support the chemical reactions necessary to produce hair.
- treatment apparatus 101 may be used to assist in determining the rate of healing of a wound.
- seal gasket 107 may serve as a fixed base upon which a measuring grid may be repeatedly positioned in the same measuring position for periodically measuring the dimensions of a wound over a period of time. It is known that accurate recording of the size of a wound is important for evaluating the effectiveness of the therapy being used on the wound.
- the prior art technique for sizing a wound involves placing a grid over the lens of a camera, taking a series of pictures of the wound over time, and using the interposed grid pattern to estimate the size of the wound over time. The size of the wound is estimated by counting the number of grid spaces through which the wound is visible in the picture.
- the accuracy of this process is very sensitive to the distance of the camera lens/grid from the wound when each picture is taken. If the camera is moved away from the wound, the estimated wound size will be inaccurately small. Conversely, if the camera is moved closer to the wound, the estimated wound size will be inaccurately large.
- a string attached to the camera to set the position of the camera for each picture. Not only is the accuracy of such a process less than desired, it also give rise to the possibility of the wound site being contaminated by touching the string.
- Wound measuring device 500 includes a frame portion 502 and a window portion 504 .
- Frame portion 502 is may be round, rectangular or other desired shape for fitting around a wound or onto a particular portion of a body.
- Window portion 504 is made of a translucent or preferably transparent material such as a polymeric sheet or film such as polyolefin film.
- Printed on or otherwise disposed on or in the window portion 504 is a patterns of lines defining a grid pattern 506 .
- Grid 506 may be opaque or of sufficient color density so that it is visible in contrast to the underlying skin when measuring device 600 is disposed over a wound.
- Grid 506 may take any shape or size as appropriate, and in one embodiment is a 1 ⁇ 4 inch square pattern defining a plurality of transparent areas each having an area of approximately 0.0625 square inches.
- frame portion 502 is sized or otherwise deigned to align precisely and repeatedly over the seal gasket 107 of treatment apparatus 101 .
- grid 506 is disposed a fixed distance from the underlying skin and wound.
- the thickness of a seal gasket 107 may be, for example, from 0.1 inch to 0.5 inch, thus placing the grid very near to, but not touching the underlying wound.
- the treatment gas containment portion 103 and the wound measuring device 500 are alternately attached to the seal gasket 107 in order to alternately treat the wound with a treatment gas and to measure the wound.
- Frame portion 502 may be made from a flexible material such as plastic in order to bend over curved portions of the skin. Frame portion 502 should also have sufficient rigidity to support window portion 504 taunt so as to maintain the grid pattern 506 in its predetermined shape.
- a bottom surface 508 of the frame portion 502 and a top surface 107 A of the seal gasket 107 may be formed with mating loop and hook type re-sealable fastening material.
- measuring device 500 may be used independent of treatment apparatus 101 by simply placing the frame portion 502 against the skin surrounding a wound when no seal gasket 107 is applied to the skin.
- the thickness of frame portion 502 will determine the distance of the grid 506 from the skin/wound. With this embodiment, the position of the grid is not held constant in the plane of the skin from picture to picture. However, even in this embodiment, the distance between the wound and the grid 506 is held constant, thereby providing an improved method and apparatus for measuring a wound using photography when compared to the prior art technique.
- FIG. 7 illustrates a device 700 for stimulating the growth of hair on a portion of skin on the head of a patient where hair growth is desired.
- the device 700 includes a gas containment cap portion 702 adapted for placement on the head of a patient.
- the containment 702 may be formed of plastic or other appropriate material and may have an elastic band 704 around an opening through which the patient's head is placed.
- One or more electrodes 706 are attached to the containment 702 in position to make contact with the scalp when the containment 702 is worn as a cap.
- the electrodes 706 are attached to a neuromuscular stimulation device 708 for applying an electrical current to the scalp.
- a supply of oxygen or other treatment gas 710 is connected to the containment, with the gas being directed over the scalp and out of the containment 702 through one or more vent openings 712 .
- both the treatment gas and electrical current may be applied simultaneously or in a predetermined pattern to the scalp in order to stimulate the growth of hair.
Abstract
Description
- This application is a continuation-in-part of application Ser. No. 09/376,916 filed on Aug. 18, 1999, and issued as U.S. Pat. No. 6,179,804 on Jan. 30, 2001.
- The present invention relates generally to the field of skin care, and, more particularly, to devices and methods for treating skin with a combination of a treatment gas and simultaneous neuro-muscular electrical stimulation.
- The use of oxygen to promote healing of wounds, burns, and infections has been documented. Nielsen discloses a device for treatment of wounds by exposure to jets in U.S. Pat. No. 4,608,041. A series of inlet and outlet openings ventilate a space between the device and the wound area. The device is fixed over the area of the wound by means of plaster or tape.
- Loori discloses a collapsible topical hyperbaric apparatus in U.S. Pat. No. 5,154,697. A gas inlet tube introduces oxygen to a shell covering the treated area. An adhesive sealing ring on the bottom of the unit secures the device to the affected area in conjunction with a belt.
- These and other devices, while providing a chamber to apply oxygen to a wound, are difficult to apply, remove and re-apply. The previous devices are sometimes ineffective in particularly difficult-to-heal wounds.
- Neuro-muscular electrical stimulation is the known technique of applying an electrical current to the skin to stimulate the contraction of muscles. One known device for performing neuro-muscular electrical stimulation is the RS-2 Muscle Stimulator provided by RS Medical, Inc. of Vancouver, Wash. Neuro-muscular stimulation is used to stimulate the flow of blood to an area of the skin by repeated contraction and relaxation of nearby muscles.
- It has been found that the simultaneous application of a treatment gas such as oxygen to the skin while simultaneously providing electrical stimulus to the same area of skin promotes beneficial effects such as wound healing, hair growth, pain relief and generally improved health of the skin tissues. The improved circulation generated by the neuro-muscular stimulation results in the efficient absorption of the oxygen into the body. The method promotes healing of wound areas not responsive to other forms of treatment. Wounds, burns and infections which have been unresponsive to treatment gas application alone are responsive when subjected to both treatment gas and electrical stimulation in adjacent areas.
- A method of treating a wound is described herein as including providing a flow of oxygen to the wound while applying an electrical current to the skin proximate the wound. The oxygen may be provided through a treatment gas applicator adhered to or positioned proximate the skin. The electrical current may be provided through at least one electrode attached to the skin proximate the wound.
- A variety of benefits may be obtained by a method of treating skin including the steps of providing a flow of a treatment gas to a skin surface and applying an electrical current to the skin surface during the step of providing a flow of treatment gas. Such benefits may include retarding the aging of skin, reducing wrinkles, stimulating hair growth and improved healing of wounds. The application of electrical current to the skin increases the circulation of blood near the skin surface, thereby facilitating the absorption of the treatment gas components into the skin and blood stream.
- A device for delivering a treatment gas to a wound may include a seal gasket adhered to the skin with an age-degradable adhesive. The seal gasket may also be used as a base for the repeated application of a grid pattern for photographically measuring the size of a wound over a plurality of time periods. By disposing the grid pattern very close to the wound, the accuracy of the wound measurements is made less sensitive to changes in the height of the camera used to photograph the grid/wound.
- These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims and accompanying drawings where:
- FIG. 1 is a perspective drawing of an embodiment of oxygen application apparatus showing an inflatable dome attached to a skin portion surrounding a wound by a seal gasket, and two stimulation electrodes attached to an oxygen supply hose;
- FIG. 2 is a cross section of the inflatable dome and seal gasket taken along lines2-2 of FIG. 1;
- FIG. 3 is a detail cross section of a vent installed in the membrane of the inflatable dome of the apparatus; and
- FIG. 4 is a cross section drawing of a dressing cover used in conjunction with the seal gasket of FIG. 1.
- FIG. 5 is a top view of a wound measuring device that may be used with the apparatus of FIG. 1.
- FIG. 6 is a side sectional view of the wound measuring device of FIG. 5.
- FIG. 7 is a device for applying treatment gas and neuromuscular stimulation to the scalp.
- FIG. 1 is a perspective drawing of
treatment apparatus 101 covering a wound area (203 of FIG. 2). The apparatus consists of aninflatable dome portion 103 attached to surroundingskin portion 105 byseal gasket 107.Oxygen supply hose 109 supplies oxygen toinflatable dome 103 through fitting ornozzle 111.Gas vents 113 vent gasses insidedome 103 to atmosphere.Tab 115 promotes removal ofdome portion 103 fromseal gasket 107. - Neuro-muscular stimulation electrodes such as
electrode patches 117 provide electrical connections to surroundingskin portion 105A to promote blood supply to the wound area and further promote healing. Apower supply 118 supplies electric current toelectrode patch 117 throughplugs 119 and current carrying conductors orwires 121.Plugs 119 are attached tooxygen supply hose 109 by adhesives, welding, or mechanical connectors. Alternatively,plugs 119 are connected todome portion 103. A contact adhesive attached to thebottom 117A ofelectrode patches 117 attaches the patches to surroundingskin portion 105A. Theelectrodes 117 may be integrated into theseal gasket assembly 107. - FIG. 2 is a cross section drawing of
inflatable dome portion 103 taken along lines 2-2 of FIG. 1.Membrane 205 is a flexible gas barrier providing the structure ofdome portion 103 when inflated by a gas such as oxygen, air, an inert gas, nitrogen or other gas appropriate for a specific treatment. In the preferred embodiment,membrane 205 is made of a polymeric sheet or film such as polyolefin film. Other materials include PVC, fluoropolymers, and natural and synthetic rubber sheets and films. In alternative embodiments,membrane 205 is a rigid or semi-rigid material such as plastic, formed in a dome shape. Domeperipheral portion 211 may be the peripheral portion ofmembrane 205, or it may be a ring-shaped element bonded by adhesives, welding, or fasteners tomembrane 205. In the preferred embodiments,peripheral portion 211 is flexible to provide sealing withseal gasket 107 on uneven portions of the body. -
Oxygen supply hose 109 providesoxygen flow 206 to domeinterior portion 207 throughnozzle 111 inserted through an aperture inmembrane 205.Nozzle 111 is sealed and attached tomembrane 205 by adhesives, welding or mechanical fasteners.Gasket 107 sealsinterior portion 207 ofinflatable dome 103 againstwound area 203 and surroundingskin portion 105. In the preferred embodiments,gasket 107 is a ring-shaped flexible member made of a hypoallergenic polymer material such as MicroSkin available from Cymed. - In the preferred embodiments,
upper gasket surface 107A ofseal gasket 107 and lowerdome seal surface 209 of domeperipheral portion 211 are releasable and re-sealable with respect to each other. In one preferred embodiment, the releasable and re-sealable feature ofsurfaces dome seal surface 209 is a smooth seal surface to which adhesive 213 releasably seals surface 107A. Alternatively, adhesive 213 is fixed to lowerdome seal surface 209 and adhesive 213 is releasable and re-sealable to surface 107A. Adhesive 213 may be a pressure sensitive adhesive. The releasable (non-adhesive) surface may be treated to promote release from the releasable adhesive. - A
second adhesive 215 attachesseal gasket 107 to surroundingskin portion 105.Adhesive 213 is a controlled degradable adhesive. In the preferred embodiments,second adhesive 215 is an age-degradable, septic and hypoallergenic adhesive. For the purposes of this disclosure, and age-degradable adhesive is one in which the adhesive capability with the skin decreases with time, either from a direct time dependent process, or a process in which time not an direct, but rather a substantial indirect, factor in the adhesive degradation process. The preferred time periods of degradability are those typical for wound healing, i.e. 3-14 days. - The age-degradable feature may be provided by a hydrocolloid adhesive such as Duoderm, available from ConvaTec. Hydrocolloid-based adhesives maintain adhesion to the skin until moisture saturation of the hydrocolloid component (typically 3-12 days, depending on hydrocolloid content and skin, wound and environmental conditions). The moisture saturation is age or time dependent in that moisture provided to the hydrocolloid component from the wound portion, the surrounding portion, and atmospheric moisture is cumulative with time.
- Utilization of an age-degradable adhesive permits secure fastening of
seal gasket 107 to surroundingskin portion 105 for a substantial period of time and sufficient for normal use of the apparatus. Upon age degradation of the adhesive, removal ofseal gasket 107 is simple and painless, and completed without damage to the surrounding skin portion. In the preferred embodiments, adhesive 215 is attached tolower surface 107B ofseal gasket 107. - Restricted discharge of
gasses 208 throughvents 217 ofmembrane 205 maintains inflation ofinterior portion 207 and provides ventilation of gasses discharged fromwound area 203.Vents 217 provide restriction of gas entrapped ininterior portion 207, resulting in a positive pressure inportion 207. Positive pressure provides the dome shape ofmembrane 205.Vents 217 may comprise one or more apertures inmembrane 205 such as holes, slots, or perforations.Outer layer 219, made of a fabric, mesh or perforated material such as a fine polymeric mesh material, prevents introduction of foreign material intovents 217 while allowing escape of gasses exiting the vents.Outer layer 219 may be bonded tomembrane 205 by adhesives, welding or fasteners. - FIG. 3 is a detail drawing of an alternative vent utilizing
vent insert 301 attached tomembrane 205. Vent 301 may be made of a polymeric, ceramic or metallic material. A contamination barrier or ventfilter 303 allows venting ofgasses 208 insidemembrane 205 while preventing foreign material from enteringvent 301.Filter 303 may be made of natural or synthetic fiber material, or sintered metal or ceramic materials. - Referring back to FIG. 2, an
inner layer 221 of a sterile material such as sterile gauss may be bonded to the inner side ofmembrane 205.Inner layer 221 may be a natural or synthetic woven, non-woven or mesh material, or, other dressing materials known in the art.Inner layer 221 preventsmembrane 205 from sticking to woundarea 203. In the preferred embodiments,inner layer 221 is a breathable material, allowing covering ofvents 217 and/ornozzle 111 and yet permitting flow of treatment gas intointerior portion 207 and gasses out ofinterior portion 207. In other embodiments, cutouts or positioning ofinner layer 221 prevents covering ofvents 217 and/ornozzle 111. In one embodiment,dome portion 103 may be a single layer of material, preferably a material that will transmit electromagnetic radiation so that the condition of the underlying wound may be viewed. - In use,
seal gasket 107 is attached to surroundingskin portion 105 surroundingwound area 203, utilizing an adhesive such as age-degradable adhesive 215. A skin preparation agent may be used to remove contaminates from the skin and provide a thin protective film before application of the age-degradable adhesive. Removal of a peel strip (not shown) exposes releasable adhesive 213 onupper gasket surface 107A. Releasable adhesive 213 bonds lowerdome seal surface 209 ofinflatable dome 103 to sealgasket 107. Alternatively, this may be a mechanical connection. The user removes peel strips (not shown) fromelectrode patches 117 and applies to surroundingskin portion 105A. Surroundingskin portion 105A is preferably upstream from a blood supply in relation to the wound so that the electrode patches will promote blood supply to woundarea 203 upon energizing the patches. - Attachment of
plugs 119 to supplyhose 119 promotes correct use of the electrode patches since the physical attachment of the patches to the apparatus reminds the user to use and connect them. The placement ofplugs 119 and the length ofwire 121 promotes placement of the patches near the wound area where they are most effective. In alternative embodiments, additional electrode patches are attached to the apparatus. - Once
dome portion 103 andelectrode patches 117 are in place, the operator attachesoxygen hose 109 to a supply of oxygen, andstimulator power supply 118 toplugs 119. The operator then activates the oxygen supply andstimulator power supply 118. - Upon completion of the therapy, the operator may remove the dome portion by separating
lower seal surface 209 ofdome portion 103 fromupper seal surface 107A.Tab 115 eases removal ofdome portion 103. Re-sealable adhesive 213 allows removal and replacement ofdome portion 103 without damage to the seal. In an alternative embodiment, a peel strip protectsupper seal surface 107A whendome portion 103 is removed.Seal gasket 107 remains in place for several installations and removals ofdome portion 103. Upon removal ofdome portion 103, the wound may be cleaned or dressed or treated as directed. - The wound may be covered by conventional dressings, or a dressing cover as shown in FIG. 4.
Dressing cover 401 comprises aperipheral portion 403 of flexible material such as a polyolefin ring. Asterile dressing 405 covers the opening inperipheral portion 403. An adhesive bondssterile dressing 405 toperipheral portion 403. Lowerdressing seal surface 407 is sealable to upperseal gasket surface 107A. - In other embodiments,
re-sealable adhesive 213 is fixed to domelower seal surface 209 and lowerdressing seal surface 407. The adhesive may be protected by a peel strip. In still other embodiments,oxygen nozzle 111 position provides physical stimulation of the wound by direct impingement of the gas on the wound area. Several nozzles placed to direct gas on the wound area provide additional stimulation. In still other embodiments,inflatable dome 103 may have other shapes such as rectangular, oval or octagonal. - Accordingly the reader will see that the treatment apparatus for wounds disclosed and claimed provides improved apparatus and methods for treating wounds. The apparatus provides the following additional advantages:
- Simultaneous application of a treatment gas such as oxygen to the wound and promotion of circulation afforded by the electrode patches provides an apparent synergetic effect to rapidly heal difficult wounds;
- Use of a re-sealable adhesive on the seal gasket allows the inflatable dome to be removed and replaced frequently and easily, and with low cost;
- Placement of the electrode patches on the device reminds the user to connect them and place them correctly; and
- Use of an age-degradable adhesive on the seal gasket allows simple and painless removal upon completion of use.
- Although the description above contains many specifications, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. For example, mechanical fasteners may attach the dome portion to the seal gasket, a re-sealable adhesive may be used on the lower dome seal surface and the device used without a seal gasket, or the inflatable dome may be made of a rigid material.
- The simultaneous application of neuro-muscular stimulation and oxygen is believed to have a generally beneficial effect on the health of the treated skin, including the skin of humans and animals. Skin is an aerobic organism and the improved supply of oxygen provided by the present invention may have many beneficial effects. In one example, a treatment of oxygen and neruo-muscular electrical stimulation was applied periodically to the head of a bald man for between 2-3 hours daily. A standard RS Medical, Inc. Model RS-2 stimulator was used at a setting of Grade 6 to provide the electrical stimulation. In less than about 3 months, new hair began growing from the previously bald skin. It is believed that this effect resulted from the improved blood supply provided by the neuro-muscular stimulation in combination with the augmented oxygen made available to support the chemical reactions necessary to produce hair.
- In a further aspect of this invention,
treatment apparatus 101 may be used to assist in determining the rate of healing of a wound. In particular,seal gasket 107 may serve as a fixed base upon which a measuring grid may be repeatedly positioned in the same measuring position for periodically measuring the dimensions of a wound over a period of time. It is known that accurate recording of the size of a wound is important for evaluating the effectiveness of the therapy being used on the wound. The prior art technique for sizing a wound involves placing a grid over the lens of a camera, taking a series of pictures of the wound over time, and using the interposed grid pattern to estimate the size of the wound over time. The size of the wound is estimated by counting the number of grid spaces through which the wound is visible in the picture. The accuracy of this process is very sensitive to the distance of the camera lens/grid from the wound when each picture is taken. If the camera is moved away from the wound, the estimated wound size will be inaccurately small. Conversely, if the camera is moved closer to the wound, the estimated wound size will be inaccurately large. To keep the camera/grid a fixed distance from the wound, it is known to use a string attached to the camera to set the position of the camera for each picture. Not only is the accuracy of such a process less than desired, it also give rise to the possibility of the wound site being contaminated by touching the string. - A wound measuring device adapted for use with
treatment apparatus 101 is illustrated in FIGS. 5 and 6.Wound measuring device 500 includes aframe portion 502 and awindow portion 504.Frame portion 502 is may be round, rectangular or other desired shape for fitting around a wound or onto a particular portion of a body.Window portion 504 is made of a translucent or preferably transparent material such as a polymeric sheet or film such as polyolefin film. Printed on or otherwise disposed on or in thewindow portion 504 is a patterns of lines defining agrid pattern 506.Grid 506 may be opaque or of sufficient color density so that it is visible in contrast to the underlying skin when measuring device 600 is disposed over a wound.Grid 506 may take any shape or size as appropriate, and in one embodiment is a ¼ inch square pattern defining a plurality of transparent areas each having an area of approximately 0.0625 square inches. Preferably,frame portion 502 is sized or otherwise deigned to align precisely and repeatedly over theseal gasket 107 oftreatment apparatus 101. In such a measurement position,grid 506 is disposed a fixed distance from the underlying skin and wound. The thickness of aseal gasket 107 may be, for example, from 0.1 inch to 0.5 inch, thus placing the grid very near to, but not touching the underlying wound. Because thegrid 506 is positioned a fixed, small distance from the wound each time it is applied for a picture, the accuracy of the measurement of the size of the wound over a period of time becomes relatively insensitive to the distance of the camera lens from the grid/wound. The treatmentgas containment portion 103 and thewound measuring device 500 are alternately attached to theseal gasket 107 in order to alternately treat the wound with a treatment gas and to measure the wound.Frame portion 502 may be made from a flexible material such as plastic in order to bend over curved portions of the skin.Frame portion 502 should also have sufficient rigidity to supportwindow portion 504 taunt so as to maintain thegrid pattern 506 in its predetermined shape. In one embodiment, a bottom surface 508 of theframe portion 502 and atop surface 107A of theseal gasket 107 may be formed with mating loop and hook type re-sealable fastening material. In an alternative embodiment, measuringdevice 500 may be used independent oftreatment apparatus 101 by simply placing theframe portion 502 against the skin surrounding a wound when noseal gasket 107 is applied to the skin. In this embodiment, the thickness offrame portion 502 will determine the distance of thegrid 506 from the skin/wound. With this embodiment, the position of the grid is not held constant in the plane of the skin from picture to picture. However, even in this embodiment, the distance between the wound and thegrid 506 is held constant, thereby providing an improved method and apparatus for measuring a wound using photography when compared to the prior art technique. - FIG. 7 illustrates a
device 700 for stimulating the growth of hair on a portion of skin on the head of a patient where hair growth is desired. Thedevice 700 includes a gascontainment cap portion 702 adapted for placement on the head of a patient. Thecontainment 702 may be formed of plastic or other appropriate material and may have anelastic band 704 around an opening through which the patient's head is placed. One ormore electrodes 706 are attached to thecontainment 702 in position to make contact with the scalp when thecontainment 702 is worn as a cap. Theelectrodes 706 are attached to aneuromuscular stimulation device 708 for applying an electrical current to the scalp. A supply of oxygen orother treatment gas 710 is connected to the containment, with the gas being directed over the scalp and out of thecontainment 702 through one or more vent openings 712. In this manner, both the treatment gas and electrical current may be applied simultaneously or in a predetermined pattern to the scalp in order to stimulate the growth of hair. While the preferred embodiments of the present invention have been shown and described herein, it will be obvious that such embodiments are provided by way of example only. Numerous variations, changes and substitutions will occur to those of skill in the art without departing from the invention herein. Accordingly, it is intended that the invention be limited only by the spirit and scope of the appended claims.
Claims (11)
Priority Applications (1)
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US09/772,214 Expired - Fee Related US6572594B2 (en) | 1999-08-18 | 2001-01-29 | Skin treatment using neuromuscular stimulation and a treatment gas containing medicine |
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- 2000-08-16 AU AU67773/00A patent/AU6777300A/en not_active Abandoned
-
2001
- 2001-01-29 US US09/772,223 patent/US20010020146A1/en not_active Abandoned
- 2001-01-29 US US09/772,214 patent/US6572594B2/en not_active Expired - Fee Related
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US20050251084A1 (en) * | 2003-06-18 | 2005-11-10 | Rosati Coni F | Method and apparatus for supplying gas to an area |
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US20060200100A1 (en) * | 2003-06-18 | 2006-09-07 | Rosati Coni F | Method and apparatus for supplying gas to an area |
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US20040260253A1 (en) * | 2003-06-18 | 2004-12-23 | Rosati Coni F. | Method and apparatus for supplying gas to an area |
US20080294147A1 (en) * | 2003-08-28 | 2008-11-27 | Boehringer Technologies, L.P. | Device for treating a wound |
US7942866B2 (en) | 2003-08-28 | 2011-05-17 | Boehringer Technologies, L.P. | Device for treating a wound |
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US7896854B2 (en) | 2007-07-13 | 2011-03-01 | Bacoustics, Llc | Method of treating wounds by creating a therapeutic solution with ultrasonic waves |
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US8506521B1 (en) * | 2007-11-06 | 2013-08-13 | Leonides Y. Teves | Adaptor for connecting a cannula to a gas machine |
US20090200396A1 (en) * | 2008-02-11 | 2009-08-13 | Eilaz Babaev | Mechanical and ultrasound atomization and mixing system |
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US20110092958A1 (en) * | 2008-06-13 | 2011-04-21 | Premco Medical Systems, Inc. | Wound treatment apparatus and method |
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US11246757B2 (en) * | 2011-05-17 | 2022-02-15 | Smith & Nephew Plc | Tissue healing |
US20190321257A1 (en) * | 2016-06-20 | 2019-10-24 | Dtamedical | System for delivering a variable pressure for an enclosure for treatment of a wound |
Also Published As
Publication number | Publication date |
---|---|
AU6777300A (en) | 2001-03-13 |
US6572594B2 (en) | 2003-06-03 |
US6179804B1 (en) | 2001-01-30 |
US20010020145A1 (en) | 2001-09-06 |
WO2001012257A1 (en) | 2001-02-22 |
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