referring to fig1 - 3 , a massager in accordance with the preferred embodiment of the present invention is shown and indicated by reference numeral 10 . massager 10 comprises a housing 20 formed generally as two portions , a base portion 30 and a handle portion 40 . the handle portion 40 preferably includes two handles 42 , 44 that are disposed on opposite sides of the base portion 30 . the base portion 30 includes a drive unit 50 housed within the base portion 30 and a massage head 60 having an external massage surface that is contoured symmetrically about a median plane p generally perpendicular to a notional plane n representing a surface to be massaged . the actual massage surface of the massage head 60 is , in this embodiment , defined by a pair of generally hemispherical massage nodes 62 which are symmetrical about plane p . the massage head 60 is situated in such a way as to provide for movement of the massage nodes 62 about axes a and a ′ disposed parallel to the median plane p . the drive unit 50 is coupled to the massage nodes 62 by coupling means 70 known in the art . the coupling means 70 permit the massage nodes 62 to reciprocate along the axes a and a ′ at a position spaced apart from the median plane p to thereby produce asynchronous movement of the massage heads 62 . in the preferred embodiment , the housing 20 is generally shaped like a flat “ t .” however , one skilled in the art would appreciate that the housing may be straight , curved , angled and / or adjustable depending on the region of the body to be treated . because the massager 10 may be used during any liposuction proceeding ( e . g ., pre - operatively , intra - operatively , and post - operatively ), it is preferred that the housing 20 be waterproof such that chemicals or bodily fluids are prevented from penetrating into the electrical and mechanical components within the housing 20 . the housing 20 itself can be constructed by any means necessary to ensure water tightness including , but not limited to , tongue and groove edges , use of a gasket and / or o - rings , or any other means known in the art . alternatively , as shown in fig4 , the massager 10 may be placed into a disposable sterile plastic bag 80 and operated while in the plastic bag during the liposuction procedure . the plastic bag 80 will ensure that the massager is isolated from any fluids , tissue , or other contaminating materials and also reduces the need to clean the massager 10 since the bag 80 is disposable . furthermore , the housing must be constructed of a material that is sufficient for use in an operating room , surgeon &# 39 ; s office , or any other medical office . accordingly , the housing should be constructed of titanium , stainless steel , aluminum alloy , or any other chemically resistant metal or metal alloy . also , any chemically resistant plastics may be utilized especially when a disposable sterile bag 80 is used during the massaging procedure . the handle arrangement of the preferred embodiment has been found to be particularly useful in that it allows the massager 10 to be held in an almost infinite variety of positions as required by the particular treatment being given . however , it is contemplated that the handle arrangement may be varied to treat any region of the body . although the preferred embodiment includes two handles 42 , 44 disposed on opposite sides of the base portion 30 and parallel to the notional plane n , the two handles 42 , 44 may be arranged in any fashion . in another embodiment , one handle 42 may be disposed parallel to the notional plane n similar to the preferred embodiment , while the other handle 44 may be disposed 90 degrees from the handle parallel to the notional plane n . in other words , the two handles 42 , 44 are disposed mutually at right angles from each other and are parallel to the notional plane n . furthermore , one skilled in the art would understand and appreciate that the massager may incorporate only one handle or more than two handles and still be within the scope of the invention . additionally , one or more of the handles may be adjustable . also , the handles may be preferably contoured to facilitate a user &# 39 ; s grasp and may be provided with a foam cushion to provide an operator with an easy and comfortable grip . in the preferred embodiment , the massage surface is shown as being provided by two hemispherical shaped massage nodes 62 , but it is to be understood that a larger number of semi - hemispherical shaped massage nodes could be provided symmetrically about plane p . the number of massage nodes 62 may be between 2 and 50 . see fig3 which illustrates the addition of two massage nodes 62 . reference may be made to u . s . pat . no . 4 , 730 , 605 for an illustration of a multiple hemispherical shaped massage nodes 62 and which is hereby incorporated by reference in its entirety . it is understood , of course , that each massage node 62 can have any shape and size suitable to impart the desired massage effect . also , the size and / or shape of one massage node 62 may be different than the size and / or shape of another massage node 62 on the same massager 10 . preferably , the size of the massage nodes is between about 1 cm and about 10 cm in diameter . massage nodes 62 preferably have a plastic internal frame that includes a tapped cylinder such that each massage node can be fastened to the frame with a screw . on the exterior surface , massage nodes 62 comprise a resilient , preferably rubber , material . preferably , alternate sets ( not shown ) of massage nodes 62 are provided for attachment to massager 10 of the present invention . the sets of massage nodes 62 would be of different densities to provide the options of soft , medium , or hard massage application . to change to a different set , an operator can simply unscrew the set that is currently attached to massager 10 via the screws and screw in the desired set . it is also contemplated that the massage nodes may be spaced apart a certain distance and that distance may be adjustable by any means known in the art . referring now to the cross - section view of fig5 ( taken along line 5 - 5 of fig2 ), massager 10 is provided with a drive unit 50 to produce motion and transmit the motion via coupling means 70 to the massage nodes 62 thereby producing asynchronous movement of the massage heads 62 along axes a and a ′ in a direction generally parallel to the median plane p . in the preferred embodiment , the drive unit 50 is an electric motor 30 that is disposed within the base portion 30 of the housing 20 and is capable of producing percussive motion utilizing means known in the art . the motor rotates an output shaft that protrudes from the motor 30 on either side ( see fig6 ) or both sides thereof ( see fig5 ). reference may be made to u . s . pat . no . 5 , 716 , 332 for an illustration of the mechanics of a percussive massager wherein the output shaft protrudes from only one side of the motor and is hereby incorporated by reference in its entirety . reference may be made to u . s . patent application no . 2001 / 0027280 a1 for an illustration of the mechanics of a percussive massager wherein the output shaft protrudes from the motor on both sides thereof and is hereby incorporated by reference in its entirety . preferably , the motor operates under ac voltage when a transformer is installed within the massager 10 . however , the motor may operate under dc voltage thereby allowing the massager 10 to be powered by batteries or the like . also , the motor is capable of providing variable speeds and may be adjustable by the user . an example of the coupling means is shown in fig5 which illustrates the drive unit as a motor wherein the output shaft protrudes from the motor on both sides thereof . on one side of motor 30 the connecting pole 40 is attached to the wheel 36 in a first offset location , such as above a longitudinal axis 44 of output shaft 34 , depicted as the left connecting pole 40 in fig5 . on the other side of motor 30 the connecting pole 40 is attached to the wheel 36 at a second offset location . the second offset location is preferably 180 degrees from the first offset location , such as below longitudinal axis 44 of output shaft 34 as depicted for the right connecting pole 40 in fig5 . therefore , as output shaft 34 rotates , connecting poles 40 are moved up and down asynchronously due their different eccentric attachment locations . although the above example is the preferred coupling means , one skilled in the art would recognize that other coupling means are possible such as the use of a “ single ” coupling means for a single output shaft ( which is similar to the above example , but only includes one set of parts ), the use of a cam shaft to create the reciprocal axial movement , and other technologies known in the art . although the drive unit 50 in the preferred embodiment is a motor , other drive units contemplated include the use of pneumatic components or electromagnetic technologies similar to that of a solenoid . electromagnetic technology has already been developed for use in combustion engines to open and close valves thereby replacing cam shafts . see u . s . pat . no . 4 , 794 , 890 which is hereby incorporated by reference in its entirety herein . each massage node 62 may be coupled to an electromagnet via coupling means known in the art . when the electromagnet is energized , the coupling means forces the massage node 62 away from the electromagnet thereby producing movement away from the base portion 30 . at the same time the one electromagnet is energized , the other electromagnet coupled to the other massage node 62 is de - energized and pulling the massage node 62 towards the electromagnet thereby producing movement towards the base portion 30 . when the energizing is synchronized properly , the movement of the massage nodes can produce a percussive effect . although the above embodiments describe the massaging effect utilizing percussive motion , one skilled in the art would appreciate that any means may be utilized to create a massaging effect including vibratory motion , rubbing motion , or rolling motion . in operation , the massager 10 of the present invention and as shown by example in fig5 operates as follows . motor 30 rotatably drives output shaft 34 , which in turn rotates affixed wheels 36 to cause asynchronous , axial movement of eccentrically attached connecting poles 40 . rubber studs 46 affixed to connecting poles 40 interface with pressing strip 50 to cause it to move back and forth about its central pivot attachment 52 to the housing 20 . from protrusions 54 formed in pressing plate 62 , screws 56 extend through rubber sleeves 60 designed to expand and contract through apertures 58 formed in massage head portion 14 of bottom housing part 20 . massage nodes 66 which form the massage surface are fastened to these screws 56 , such that the massage nodes 66 are moved asynchronously and independently by connecting poles 40 toward and away from massage head 14 to provide a percussive massage effect . another embodiment of the present invention includes a massager 10 having only one massage node 62 . one skilled in the art would understand and appreciate that providing an output shaft that only protrudes from one side of the drive unit 50 or providing only one electromagnet coupled to the one massage node will result in an operable massager having a single massage node . in operation , rotation of the output shaft or energizing and de - energizing the electromagnet causes the coupling means 70 to reciprocate axially thereby moving the massage node toward and away from the massage head portion creating a percussive massage effect . the present invention also provides for various methods of using the massagers 10 . the massagers 10 may be used to massage skin and fatty tissue . in a preferred embodiment of the present invention , the massager is used to improve the contour of the skin . the massagers 10 may specifically be used to improve contour irregularities associated with “ cellulite ” or other areas of the skin which do not appear smooth due to underlying fatty tissue . a typical procedure includes providing a massager according to the present invention , identifying an area to be treated such as an area having “ cellulite ”, and applying the massager to the area to be treated to improve contour irregularities in the skin caused by the “ cellulite ”. the massagers 10 will be placed onto the skin and moved over the treatment area in a slow manner . preferably , the application time is between about 5 minutes to about 15 minutes . an operator such as a surgeon , physician , or nurse may use the massagers 10 before ( i . e ., pre - operatively ), during ( i . e ., intra - operatively ), or after ( post - operatively ) any liposuction procedure . during pre - operative use , an operator may use the massagers 10 to condition skin and / or fat in a pre - identified treatment area . by conditioning the skin and / or fat , the operator essentially loosens up the fatty tissue beneath the skin layer thereby making it easier to suction the fat during the subsequent liposuction procedure and possibly reducing bruising caused by damage to blood vessels . a typical procedure includes providing a massager according to the present invention , identifying an area to be treated , and applying the massager to the area to be treated to condition the skin and / or fat in anticipation of an impending liposuction procedure . the massagers 10 will be placed onto the skin and moved over the treatment area in a slow manner . preferably , the application time is between about 5 minutes to about 15 minutes . during intra - operative use , an operator may use the massagers 10 to smooth skin and / or fat in a pre - identified treatment area . by smoothing the skin and / or fat , the operator intends to improve the contour irregularities of the skin caused by the liposuction procedure . a typical procedure includes providing a massager according to the present invention , identifying an area to be treated , and applying the massager to the area to be treated to smooth the skin and / or fat to improve the contour irregularities of the skin . the massagers 10 will be placed onto the skin and moved over the treatment area in a slow manner . preferably , the application time is between about 5 minutes to about 15 minutes . the application procedure may be repeated a few times during the liposuction procedure in order to help reduce contour irregularities produced during the liposuction procedure . preferably , the housing 20 of the massagers 10 is either watertight or the massagers 10 is placed into a disposable sterile plastic bag 80 to prevent any fluids , tissue , or other materials from getting into the massagers 10 . during post - operative use , an operator may use the massagers 10 to smooth skin and / or fat in a pre - identified treatment area . by smoothing the skin and / or fat , the operator intends to improve the contour irregularities of the skin caused by the liposuction procedure and remove unwanted scar tissue that forms during the liposuction procedure . a typical procedure includes providing a massager according to the present invention , identifying an area to be treated , and applying the massager to the area to be treated to smooth the skin and / or fat to improve the contour irregularities of the skin . the massagers 10 will be placed onto the skin and moved over the treatment area in a slow manner . preferably , the application time is between about 5 minutes to about 15 minutes . it is understood , of course , that while the form of the invention herein shown and described constitutes a preferred embodiment of the invention , it is not intended to illustrate all possible forms thereof . it will also be understood that the words used are words of description rather than limitation , and that various changes may be made without departing from the spirit and scope of the invention disclosed .
the invention relates to a method of operating a percussive massage device for smoothing the skin and fat irregularities associated with any liposuction procedure including suction assisted lipectomy , ultrasonic assisted lipectomy , and direct lipectomy ; improving the contour irregularities assisted with any liposuction procedure ; preconditioning the skin and fat prior to any liposuction procedure to minimize blood vessel damage ; removing scar tissue from patients who have recently undergone any liposuction procedure , and treating skin irregularities due to “ cellulite ”.