Impact massage device and use method thereof

Abstract

To provide an improved massage device.SOLUTION: An impact massage device includes a housing, an electric source, a motor positioned in the housing, a switch for operating the motor, and a push rod assembly operably connected to the motor, and configured to make a reciprocating motion responding to the operation of the motor. The housing includes a first handle part, a second handle part, and a third handle part that cooperate so as to define a handle opening. The first handle part defines a first axis line, the second handle part defines a second axis line, and the third handle part defines a third axis line. The first axis line, the second axis line, and the third axis line form a triangle cooperatively.SELECTED DRAWING: Figure 14

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation-in-part of U.S. Patent Application No. 15 / 458,920, filed March 14, 2017, which is a continuation-in-part of U.S. Patent Application No. 16 / 357,984, filed March 19, 2019, which is a continuation-in-part of U.S. Patent Application No. 15 / 920,322, filed March 13, 2018, now U.S. Patent No. 10,357,425. This application also claims the benefit of U.S. Provisional Patent Application No. 62 / 785,151, filed December 26, 2018, U.S. Provisional Patent Application No. 62 / 844,424, filed May 7, 2019, and U.S. Provisional Patent Application No. 62 / 899,098, filed September 11, 2019. All of the above-listed applications are incorporated herein by reference in their entirety.

[0002] FIELD OF THEINVENTION This invention relates generally to massage devices, and more particularly to vibratory or percussive massage devices that provide reciprocating motion. [Background technology]

[0003] Massage devices often provide a superficial, ineffective massage that provides no substantial benefit. Thus, there is a need for improved massage devices. Summary of the Invention

[0004] According to a first aspect of the invention, there is provided a method of using an percussion massage device comprising a housing having first, second and third handle portions which cooperate to define a handle opening, a power source, a motor positioned within the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor. The method also includes the steps of activating the motor with the switch, gripping the first handle portion and massaging a first body part, alternatively gripping the second handle portion to massage the first body part, and alternatively gripping the third handle portion to massage the first body part. In a preferred embodiment, the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, the first, second and third axes cooperating to form a triangle. In a preferred embodiment, the method also includes the steps of grasping the second handle portion and massaging a second body part, and grasping the third handle portion and massaging a third body part.

[0005] According to another aspect of the invention, there is provided an percussion massage device having a housing, a power source, a motor positioned within the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured for reciprocating movement in response to activation of the motor. In a preferred embodiment, the housing has first, second and third handle portions which cooperate to define a handle opening, the first handle portion defining a first axis, the second handle portion defining a second axis, and the third handle portion defining a third axis, the first, second and third axes cooperating to form a triangle.

[0006] Preferably, the first handle portion has a first handle portion inner edge and defines a first handle portion length, the first handle portion length being sufficiently long such that when a user grips the first handle portion with their hand, at least a portion of three fingers extend through the handle opening to contact the first handle portion inner edge. Preferably, the second handle portion has a second handle portion inner edge and defines a second handle portion length, the second handle portion length being sufficiently long such that when a user grips the second handle portion with their hand, at least a portion of three fingers extend through the handle opening to contact the second handle portion inner edge. Preferably, the third handle portion has a third handle portion inner edge and defines a third handle portion length, the third handle portion length being sufficiently long such that when a user grips the third handle portion with their hand, at least a portion of three fingers extend through the handle opening to contact the third handle portion inner edge. In a preferred embodiment, the first handle portion is generally straight, the second handle portion is generally straight, and the third handle portion is generally straight. By generally straight, it is meant that the majority of the handle portions are straight, but may have rounded edges or corners where different handle portions meet, or where multiple handle portions meet with bulges or finger projections, etc.

[0007] In a preferred embodiment, the switch has switch electronics associated with it, the power source is a battery housed in the second handle portion, and the switch electronics are housed in the first handle portion. Preferably, the motor is configured to rotate a pinion shaft having a pinion gear thereon about a shaft rotation axis. The housing has a gear member disposed within the housing operatively engaged with the pinion gear and rotating about the gear rotation axis. The push rod assembly is operatively connected to the gear member such that rotational motion of the pinion shaft is converted to reciprocating motion of the push rod assembly through engagement of the pinion gear and the gear member. The motor has a motor shaft extending outwardly from the motor and a pinion coupling assembly disposed between the motor shaft and the pinion shaft. The pinion coupling has a lower connector operatively connected to the motor shaft, an upper connector operatively connected to the pinion shaft, and a cross coupling disposed between the lower and upper connectors. In a preferred embodiment, the lower connector has a main body portion defining a central opening for receiving the motor shaft and first and second lower connector arms extending outwardly from the main body portion, the upper connector has a main body portion defining a central opening for receiving the pinion shaft and first and second upper connector arms extending outwardly from the main body portion, the cross coupling has a plurality of radially extending ribs, and the first and second lower connector members and the first and second upper connector members operably engage the plurality of radially extending ribs. Preferably, the lower connector and the upper connector comprise plastic and the cross coupling comprises an elastomer.

[0008] In a preferred embodiment, the gear member is disposed within a rotatable housing rotatable between at least a first position and a second position. A gearbox housing is disposed within the rotatable housing to house the gear member. The gearbox housing has a clearance slot having a first end and a second end defined therein. A push rod assembly extends through the clearance slot such that when the rotatable housing is rotated from the first position to the second position, the push rod assembly moves within the clearance slot from a position adjacent the first end to a position adjacent the second end.

[0009] In a preferred embodiment, the push rod assembly includes a first rod portion having a proximal end and a distal end, and a second rod portion having a proximal end and a distal end. The proximal end of the first rod portion is operatively connected to a motor. An adapter assembly is disposed between the first rod portion and the second rod portion. The adapter assembly allows the first rod portion to pivot relative to the second rod portion. Preferably, the adapter member has a pocket therein for receiving the distal end of the first rod portion. A pivot pin extends into the pocket and through the distal end of the first rod portion. In a preferred embodiment, the adapter member has a protrusion that is received within the proximal end of the second rod portion.

[0010] According to another aspect of the present invention, there is provided a massage device having a housing, an electrical input, a motor, a switch in electrical communication with the electrical input and the motor and configured to selectively provide power from the electrical input to the motor, an actuation output operatively connected to the motor and configured to reciprocate in response to actuation of the motor, and a treatment structure operatively connected to a distal end of the actuation output. The actuation output is configured to reciprocate the treatment structure at a frequency of about 15 Hz to about 100 Hz and with an amplitude of about 2.5 mm (about 0.15 inches) to about 25 mm (about 1.0 inches). The combination of amplitude and frequency provides efficient reciprocating motion of the treatment structure such that the treatment structure provides therapeutically beneficial treatment to a target muscle of a user.

[0011] In a preferred embodiment, the actuation output is configured to reciprocate the treatment structure at a frequency of about 25 Hz to about 48 Hz and an amplitude of about 0.23 inches to about 0.70 inches. In another preferred embodiment, the actuation output is configured to reciprocate the treatment structure at a frequency of about 33 Hz to about 42 Hz and an amplitude of about 0.35 inches to about 0.65 inches.

[0012] In a preferred embodiment, the motor is configured to rotate a shaft having a shaft gear thereon about a shaft rotation axis. The housing has a gear member disposed therein which is operatively engaged with the shaft gear and rotates about the gear rotation axis. The operational output is operatively connected to the gear member, and rotational motion of the shaft is translated into reciprocating motion of the operational output through engagement of the shaft gear with the gear member. Preferably, the gear rotation axis is perpendicular to the shaft rotation axis, and the eccentric interface is disposed on the gear member at a location other than the gear rotation axis. Preferably, the apparatus further comprises a reciprocator shaft operatively connected to the eccentric interface, and a storage member. A head of the reciprocator shaft is received by the storage member to restrict motion of the reciprocator shaft to linear motion perpendicular to the gear rotation axis. In a preferred embodiment, the gear member comprises a counterweight disposed on the gear member, and the center of mass of the counterweight is not on the gear rotation axis. Preferably, the head of the reciprocator shaft has an elongated opening therein and the eccentric interface has a pin configured to move within the elongated opening when the gear member rotates.

[0013] In a preferred embodiment, the massage device has a rotatable housing. The main housing has a rotation space defined therein. The rotatable housing has a main body portion disposed within the housing and an arm portion extending outside the housing through the rotation space, the actuation output portion extending outwardly from the arm portion, and the rotatable housing is rotatable between a plurality of positions within the rotation space. Preferably, the massage device has a button extending outwardly from the housing that is movable between a first position and a second position. The button has a plurality of teeth members. The housing has a first plurality of teeth spaces defined therein, and the rotatable housing has a second plurality of teeth spaces defined therein. When the button is in the first position, the teeth members engage the first teeth spaces and the rotatable housing cannot rotate. When the button is in the second position (depressed, overcoming a spring bias), the teeth members engage the second teeth spaces and the rotatable housing can rotate.

[0014] According to another aspect of the present invention, there is provided a reciprocating therapy device having a housing, a handle disposed on the housing and having a handle axis, a motor disposed within the housing, and an actuation output operatively connected to the motor. The actuation output is configured to reciprocate in response to actuation of the motor. The reciprocating motion is along the reciprocation axis. The motor has a shaft having a shaft rotation axis, the shaft rotation axis lying in a plane defined by the handle axis and the reciprocation axis, which are all coplanar.

[0015] In a preferred embodiment, the reciprocating therapy device includes a gearbox that converts rotational motion from a shaft to reciprocating motion at an actuation output. The gearbox preferably includes a gear member having a gear rotation axis perpendicular to the shaft rotation axis, and an eccentric interface disposed on the gear at a location other than the gear rotation axis. The device also includes a reciprocator shaft operatively connected to the eccentric interface, and a reciprocator interface configured to restrict linear motion of the reciprocator shaft to a direction parallel to the reciprocation axis and perpendicular to the gear rotation axis. The gear member preferably includes a counterweight disposed on the gear member. The counterweight has a center of mass that is not on the gear rotation axis.

[0016] In a preferred embodiment, the counterweight has a mass similar to the components of the reciprocating therapy device that reciprocate along the reciprocating axis. Preferably, the counterweight has a mass between 45 grams and 55 grams. In a preferred embodiment, the gearbox is connected to a flexible damping block, which is connected to the housing. Preferably, the flexible damping block comprises a polymer. In a preferred embodiment, the shaft is operatively connected to the gearbox via a flexible shaft damper. In one embodiment, a reciprocating therapy device is provided. The reciprocating therapy device has a housing, a motor connected to the housing, and an actuation output. The housing has a handle located on the housing. The handle has a handle axis. The actuation output is operatively connected to the motor. The actuation output is configured to reciprocate in response to actuation of the motor. The reciprocating motion of the actuation output is along the reciprocating axis. The motor has a shaft having a shaft rotation axis. The shaft rotation axis is parallel to a plane in which the handle axis and the reciprocating axis lie. Other embodiments of the reciprocating therapy device are also described. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a side view of a portion of a reciprocating therapeutic device according to one embodiment. [Diagram 2]FIG. 2 is a side view of the reciprocating therapeutic device of one embodiment of FIG. [Figure 3A] 3A is a perspective view of the working components of the reciprocating therapy device of the embodiment of FIG. 1. FIG. [Figure 3B] 3B is a perspective view of the working components of the reciprocating therapy device of FIG. 1. FIG. [Figure 4] FIG. 4 illustrates a side view of the working components of one embodiment of the reciprocating therapy device of FIG. [Diagram 5] FIG. 5 is a flow chart showing a method for manufacturing the reciprocating therapeutic device of one embodiment of FIG. [Figure 6] FIG. 6 is a flow chart illustrating a method of using the reciprocating therapy device of one embodiment of FIG. [Figure 7] FIG. 7 is a side elevational view of a reciprocating therapy device according to one embodiment of the present invention. [Figure 8] FIG. 8 is a perspective view of the reciprocating therapy device of FIG. 7 with a portion of the housing removed to show the motor and actuation components. [Figure 9] 9 is an exploded perspective view of a portion of the reciprocating therapy device of FIG. [Figure 10] 10 is a side elevational view of the motor and actuation components of the reciprocating therapy device of FIG. [Figure 11A] FIG. 11A shows the reciprocator shaft in an extended position. [Figure 11B] FIG. 11B illustrates the reciprocator shaft between the extended and retracted positions. [Figure 11C] FIG. 11C shows the reciprocator shaft in a retracted position. [Figure 11D] FIG. 11D illustrates the reciprocator shaft between the extended and retracted positions. [Figure 11E] FIG. 11E shows the reciprocator shaft in an extended position but after it has been rotated relative to FIGS. 11A-11D. [Figure 12] FIG. 12 is an exploded perspective view of components related to the rotation of the arm. [Figure 13]FIG. 13 is a side elevational view of the rotating housing and actuation output rotated to a vertical position (compared to the horizontal position of FIG. 7). [Figure 14] FIG. 14 is a side elevational view of an impact massage device according to a preferred embodiment of the present invention. [Figure 14A] 14A is another side elevational view of the percussion massage device of FIG. [Figure 15] FIG. 15 is a perspective view of the impact massage device. [Figure 16] FIG. 16 is a side elevational view of the percussion massage device showing a user gripping the first handle portion. [Figure 17] FIG. 17 is a side elevational view of the percussion massage device showing a user gripping the third handle portion. [Figure 18] FIG. 18 is a side elevational view of the percussion massage device showing a user gripping the second handle portion. [Figure 19] FIG. 19 is an exploded perspective view of the impact massage device. [Figure 20] FIG. 20 is an exploded perspective view of some of the drive system components of the impact massage device. [Figure 21] FIG. 21 is another exploded perspective view of a portion of the percussion massage device. [Figure 22] FIG. 22 is a perspective view of the drive train components of the percussion massage device. [Diagram 23] FIG. 23 is a perspective view of a push rod assembly of the percussion massage device. [Figure 24] FIG. 24 is a perspective view of another impact massage device. [Diagram 25] 25 is a side elevational view of the percussion massage device of FIG. 24. FIG. [Figure 26] FIG. 26 is a side elevational view of the percussion massage device showing some internal components with hidden lines. [Figure 27] FIG. 27 is an exploded perspective view of some of the internal components of the percussion massage device. [Figure 28] FIG. 28 is a perspective view of another impact massage device. [Figure 29] 29 is a side elevational view of the percussion massage device of FIG. 28. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The present invention may be more readily understood with reference to the accompanying drawings.

[0019] Like numbers refer to like parts throughout the several views of the drawings.

[0020] The following description and drawings are illustrative and should not be construed as limiting. Numerous specific details are described to provide a thorough understanding of the present disclosure. However, in certain instances, well-known or conventional details are not described to avoid obscuring the description. Reference to one or another embodiment in the present disclosure may refer to the same embodiment, but not necessarily so. Such reference means at least one of several embodiments.

[0021] Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment, and is not mutually exclusive with other embodiments. Furthermore, various features are described that may be exhibited by some embodiments and not by other embodiments. Similarly, various features are described that may be requirements for some embodiments but not other embodiments.

[0022] The terms used in this specification generally have their ordinary meanings in the art, in the context of the disclosure, and in the specific context in which each term is used. Specific terms used to describe this disclosure are explained below or elsewhere in the specification to provide further guidance to those skilled in the art regarding the description of this disclosure. For convenience, certain terms can be highlighted, for example, using italics and / or quotation marks. The use of highlighting does not affect the scope and meaning of the term. The scope and meaning of a term is the same in the same context, regardless of whether it is highlighted or not. It is understood that the same thing can be said in multiple ways.

[0023] As a result, alternative language and synonyms may be used for any one or more of the terms described herein. Also, there is no special significance to note whether a term is elaborated or not herein. Synonyms of certain terms are provided. The description of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification with examples of any term described herein is merely illustrative and is not intended to further limit the scope and meaning of the disclosure or any exemplary term. Similarly, the present disclosure is not limited to the various embodiments described herein.

[0024] Without intending to further limit the scope of the present disclosure, examples of instruments, devices, methods and their related results according to the embodiments of the present disclosure are given below. Please note that titles or subtitles may be used in the examples for the convenience of the reader. In this case, they should not limit the scope of the present disclosure in any manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure pertains. In case of conflict, the present specification, including definitions, will control.

[0025] It will be appreciated that terms such as "front", "back", "top", "bottom", "side", "short", "long", "up", "down" and "below" as used herein are merely for ease of description and refer to the orientation of the components as shown in the figures. It should be understood that any orientation of the components described herein is within the scope of the present invention.

[0026] There are many embodiments described herein, at least some of which provide devices, systems, and methods for reciprocating therapeutic devices.

[0027] Figures 1-12 show several embodiments of a reciprocating therapy device 100. Figures 1-4 show the device in schematic form, while Figures 7-12 show the device 100 in greater detail.

[0028] FIG 1 shows a cutaway side view of a reciprocating therapy device 100 in one embodiment. See also FIGS. 7-8. The reciprocating therapy device 100 has a housing 101, a power input 102, a switch 104, a motor 106, and an actuation output 108. The reciprocating therapy device 100, in some embodiments, generates motion at the actuation output 108 to treat a patient.

[0029] The housing 101, in one embodiment, is a structure that allows for the connection of one or more other components of the reciprocating therapy device 100. The housing 101 can completely or substantially enclose one or more other components. For example, the housing 101 can be a formed structure with attachment points for other components that, when assembled, substantially encloses one or more of those components. In another embodiment, the housing 101 can allow the other components to be exposed. For example, the housing 101 can be an open frame. In some embodiments, the housing 101 encloses one or more components of the reciprocating therapy device 101 and leaves one or more other components of the reciprocating therapy device 101 exposed.

[0030] As shown in Figures 1, 6 and 7, the housing 101 has a handle 120. The handle 120 defines a handle axis 122 that extends substantially along the longest dimension of the handle 120. In some embodiments, the handle 120 is straight or substantially straight along its longest dimension, and the handle axis 122 passes through the center or substantially through the center of the handle 120. In other embodiments, the handle 120 is curved along its longest dimension, and the handle axis 122 is tangent to the curvature of the handle 120 at a midpoint of the handle 120. In a preferred embodiment, the handle 120 has an upper surface 120a that is shaped to be ergonomically gripped by the palm of a human hand, thereby providing comfort to the user when operating the device. See, for example, U.S. Patent No. 6,105,891, which is incorporated herein by reference in its entirety. This patent teaches a fishing reel knob having a similar shape that fits the palm of a user's hand. 7, the housing 101 has a handle 120, a rear portion 121, and a lower portion 123 having an upwardly angled neck 125 that extends to a bulge 150. The handle 120, rear portion 121, and lower portion 123 (with neck 125) define a central opening 127.

[0031] The power input 102, in some embodiments, is configured to receive a power input from a power source 114. The power source 114 may be any type of power source capable of providing power to the motor 106. In one embodiment, the power input 102 receives an electrical input from the power source 114. For example, the power source 114 may be a battery that provides electrical current. In one embodiment, the battery is a rechargeable battery. In some embodiments, the battery is attachable to the reciprocating therapy device 100 such that the reciprocating therapy device 100 with the power source 114 is portable and cordless. In an alternative embodiment, the reciprocating therapy device 100 uses an external battery pack as the power source 114.

[0032] The battery may be any type of battery known in the art. For example, the battery may include a rechargeable Lithium Ion (LiIon) based battery. In another example, the battery may include a rechargeable Nickel Metal Hydride (NiMH) battery. In yet another example, the battery may include a rechargeable Lithium Polymer (LiPo) battery. In some implementations, the battery comprises a Nickel Cadmium (NiCad) battery. In one embodiment, the battery uses a non-rechargeable battery.

[0033] In an alternative embodiment, the power input 102 includes a cord for receiving power from a power grid. For example, the reciprocating therapy device 100 may include a cord with a plug configured to mate with a wall socket to provide power.

[0034] In another alternative embodiment, the power input 102 is non-electrical. For example, the power input 102 can receive pressurized air from a pressure vessel or a pressurized air network. In another embodiment, the power input 102 can have one or more reactants to provide energy for operation of the reciprocating therapy device 100.

[0035] The switch 104, in some embodiments, controls the supply of power to the motor 106. The switch 104 may be an electrical switch configured to allow the passage of electrical current when actuated. In some embodiments, the switch 104 is a binary on / off switch. In another embodiment, the switch 104 is a variable switch. The variable switch controls the amount of power provided to the motor 106. A relatively large amount of power sent to the motor 106 by the variable switch 104 will increase the speed of the motor 106. A relatively small amount of power sent to the motor 106 by the variable switch 104 will decrease the speed of the motor 106. In one embodiment, the variable switch 104 has a variable resistor that allows incrementally increasing amounts of power to flow to the motor 106 in response to incrementally increasing activation of the switch 104.

[0036] In some embodiments, the switch 104 can remain in the actuated position in response to a user releasing the switch 104. In alternative embodiments, the switch 104 can return to the unactuated position in response to a user releasing the switch 104. For example, the switch 104 can have a biasing member, such as a spring, configured to urge the switch 104 to the unactuated position in response to the release of the switch 104.

[0037] In certain embodiments, the switch 104 has multiple positions. For example, the switch 104 may have an off position, a first actuated position, and a second actuated position. The switch 104 may have one or more positions in which the switch 104 remains in that position without additional user input, and one or more positions in which the switch 104 is biased out of that position without additional user input.

[0038] For example, the switch 104 may have an "off" position, an "on" position, and a "turbo" position. The "on" and "turbo" positions may operate the reciprocating motion at different speeds, such as 2300 cycles per minute in the "on" position and 2800 cycles per minute in the "turbo" position. When set in the "on" position, the switch 104 may remain in the "on" position without the user needing to maintain contact with the switch 104. When set in the "turbo" position, the switch 104 may be biased back to the "on" position unless the user maintains a force on the switch 104 that opposes the force returning to the "on" position.

[0039] The motor 106, in one embodiment, converts power from the power source 102 into motion. In some embodiments, the motor 106 is an electric motor. The electric motor may be any type of electric motor known in the art, including, but not limited to, a brushed motor, a brushless motor, a direct current (DC) motor, an alternating current (AC) motor, a mechanically commutated motor, an electronically commutated motor, or an externally commutated motor.

[0040] In some embodiments, the motor 106 operates at a speed that can be varied by different levels of actuation of the switch 104. For example, the motor 106 can operate at a maximum speed in response to a maximum actuation of the switch 104. The motor 106 can operate at a lower speed in response to a less than maximum actuation of the switch 104.

[0041] The motor 106 can generate rotary motion. The rotary motion provided by the motor 106 can be provided via a shaft 116. The shaft 116 can rotate about a shaft axis 126. In some embodiments, the reciprocating therapy device 100 can have a linkage that converts the rotary motion of the motor 106 into reciprocating motion. One embodiment of the linkage is shown in more detail below in connection with FIGS. 3A, 3B, and 8-10.

[0042] In alternative embodiments, the motor 106 may generate reciprocating motion. For example, the motor 106 may include a reciprocating pneumatic cylinder that reciprocates in response to an input of compressed air.

[0043] The actuation output 108, in some embodiments, reciprocates in response to an input from the motor 106. For example, the motor 106 may generate rotary motion. A gearbox may be connected to the motor 106 to convert the rotary motion to reciprocating motion. The gearbox may be connected to the actuation output 108. One embodiment gearbox is shown in more detail below in connection with Figures 4 and 8-10.

[0044] In some embodiments, the actuating output 108 reciprocates at a rate of about 65 Hz. In some embodiments, the actuating output 108 reciprocates at a rate of greater than 50 Hz. The reciprocating therapy device 100 provides reciprocation at a rate in the range of 50 Hz to 80 Hz in some embodiments. In some embodiments, the actuating output 108 has a maximum articulation rate between 50 Hz to 80 Hz. In other embodiments, the actuating output 108 has an articulation rate of 30 Hz to 80 Hz. In certain embodiments, the actuating output 108 has an articulation rate of about 37 Hz. In one embodiment, the actuating output 108 has an articulation rate of about 60 Hz. In a preferred embodiment, the actuating output 108 articulates or reciprocates at a frequency of about 15 Hz to about 100 Hz. In a more preferred embodiment, the actuating output 108 articulates or reciprocates at a frequency of about 25 Hz to about 48 Hz. In a most preferred embodiment, the actuation output 108 articulates or reciprocates at a frequency of about 33 Hz to about 42 Hz. Any selected range within the ranges specified above is within the scope of the present invention.

[0045] The actuation output 108 can move through a predetermined range of reciprocating motion. For example, the actuation output 108 can be configured to have an amplitude of about ½ inch. In another embodiment, the actuation output 108 can be configured to have an amplitude of about ¼ inch. As will be appreciated by one of ordinary skill in the art, the actuation output 108 can be configured to have any amplitude that is deemed therapeutically beneficial.

[0046] In some embodiments, the actuating output 108 may be adjustable through a variable range of reciprocation. For example, the reciprocating therapy device 100 may have an input for adjusting the reciprocation amplitude from about ¼ inch up to about 1 inch. In a preferred embodiment, the actuating output 108 moves with an amplitude between about 0.15 inch and about 1.0 inch. In a more preferred embodiment, the actuating output 108 articulates or reciprocates with a frequency between about 0.23 inch and about 0.70 inch. In a most preferred embodiment, the actuating output 108 articulates or reciprocates with a frequency between about 0.35 inch and about 0.65 inch. Any selected range within the ranges specified above is within the scope of the present invention.

[0047] It will be appreciated that the device operates most effectively within the combination of the above frequency ranges and the above amplitude ranges. The inventors of the present application found during the development of the invention that above the above ranges the device causes pain and below the above ranges the device does not provide effective therapeutic pain relief or massage. Only when the device operates within the above disclosed combination of frequency ranges and amplitude ranges will it provide efficient and therapeutically beneficial treatment to the targeted muscles.

[0048] In certain embodiments, the reciprocating therapy device 100 has one or more components for adjusting the articulation of the actuation output 108 in response to varying levels of power supplied to the power input 102. For example, the reciprocating therapy device 100 may have a voltage regulator (not shown) for providing a substantially constant voltage to the motor 106 over a range of input voltages. In another embodiment, the current supplied to the motor 106 may be adjusted. In some embodiments, the operation of the reciprocating therapy device 100 may be limited in response to the input voltage falling below a preset value.

[0049] In some embodiments, the actuation output 108 has a connector 110 for connection of an attachment. In some embodiments, the actuation output 108 has a locking mechanism 112 for locking an attachment within the connection socket 110. The connector 110 can be any type of structure capable of holding an attachment, such as a latched socket, a threaded connector, etc.

[0050] For example, the locking mechanism 112 can have a biased structure, such as a spring, to bias the locking mechanism 112 toward a locked position. In the locked position, the locking mechanism 112 can limit removal of the attachment. The biased structure can be articulated by a user to move the locking mechanism 112 toward an unlocked position. In the unlocked position, the locking mechanism 112 can allow removal of the attachment.

[0051] In some embodiments, the locking mechanism 112 has a keyway that interacts with a key on the attachment. The keyway can be selectively opened and closed by articulation of the locking mechanism 112. Removal of the attachment can be restricted in response to the keyway being closed.

[0052] As shown in FIG. 9, in another embodiment, the connector 110 may be a male connector and may have at least one (preferably two) outwardly biased ball bearings 110a that mate with the treatment structure 204.

[0053] In certain embodiments, the actuation output 108 reciprocates along a linear or substantially linear path. The path traveled by the actuation output 108 defines a reciprocation axis 124. In certain embodiments, the reciprocation axis 124 extends through a geometric center of one or more components of the actuation output 108.

[0054] The actuation output 108, in some embodiments, has a safety extension 128 between a portion of the housing 101 and a protrusion, such as the connection mechanism 112. The safety extension 128 provides an area of ​​the actuation output 108 that has a substantially constant cross-sectional shape. This safety extension 128 reduces the risk of pinching a body part, such as a finger, when the actuation output 108 is actuated. The safety extension 128 can be defined as the area of ​​the actuation output 108 between any non-reciprocating component, such as the housing 101, and any component of the actuation output 108 that has a relatively large or extending cross-section, such as the connection mechanism. In one embodiment, the length of the safety extension 128 along the reciprocation axis 124, as measured when the actuation output 108 is fully retracted, is greater than the width of either of the average user's fingers. In some embodiments, the length of the safety extension 128 along the reciprocation axis 124, as measured when the actuation output 108 is fully retracted, is at least 18 millimeters.

[0055] In some embodiments, the motor 106 is connected to the housing 101 such that the shaft rotation axis 126 is parallel to the plane defined by the handle axis 122 and the reciprocation axis 124. In one embodiment, the motor 106 is connected to the housing 101 such that the shaft rotation axis 126 is coplanar with the plane defined by the handle axis 122 and the reciprocation axis 124.

[0056] Figure 2 shows a side view of one embodiment of the reciprocating therapy device 100 of Figure 1. The reciprocating therapy device 100 has an attachment 202, a treatment structure 204, and an abutment surface 206. The reciprocating therapy device 100, in one embodiment, generates a reciprocating motion in the treatment structure 204 to treat a patient.

[0057] The attachment 202 may be a replaceable, user-selectable component that is connectable to the actuation output 108. The attachment 202 may have a treatment structure 204 designed to interact with the patient.

[0058] The abutment surface 206 is a surface disposed on the housing 101. The abutment surface 206 is configured so that when the reciprocating therapeutic device 100 has the abutment surface 206 placed on a flat and horizontal surface, the reciprocating therapeutic device 100 can abut at that position without applying an external force. In other words, when abutting as described above, a line drawn downward from the center of gravity of the reciprocating therapeutic device 100 passes through the abutment surface 206. The term "downward" as used in this paragraph refers to the direction in which gravity applies a force to an object having mass.

[0059] 3A, 3B and 8-11E show diagrams of actuation components 300 for some embodiments of a reciprocating therapy device 100. Actuation components 300 generally include a motor 106, a flexible shaft damper 302, a shaft 116 with a shaft gear 117 thereon, a gear member 304, an eccentric interface 306, a reciprocator interface 308, a reciprocator shaft 310, and an actuation output 108. The motor 106, shaft 116, and actuation output 108 are numbered similarly to the similarly numbered components described above in connection with FIG. 1. Actuation components 300 generate motion provided at actuation output 108.

[0060] In one embodiment, the rotational motion is transmitted from the motor 106 via the shaft 116 and shaft gear 117. In a particular embodiment, the motor 106 is connected to other components of the plurality of actuating components 300 by a flexible shaft damper 302. The flexible shaft damper 302 comprises a flexible material configured to absorb vibrations generated by the actuating components 300. The flexible shaft damper 302 can transmit the rotational motion generated by the motor 106 while deforming under vibration loads, and thus can absorb or partially absorb and reduce vibrations in the reciprocating therapy device 100.

[0061] The flexible shaft damper 302 may comprise any material capable of absorbing vibrations. In some embodiments, the flexible shaft damper 302 comprises a polymer. For example, the flexible shaft damper 302 may comprise a flexible polymer. In one example, the flexible shaft damper 302 may comprise a polyurethane foam, a thermoplastic elastomer ("TPE"), including but not limited to a styrenic block copolymer (TPE-s), a polyolefin blend (TPE-o), an elastomeric alloy (TPE-v or TPV), a thermoplastic polyurethane (TPU), a thermoplastic copolyester, or a thermoplastic polyamide. In another example, the flexible shaft damper 302 may comprise a polyvinyl chloride (PVC), a low durometer PVC, or a urethane.

[0062] The gear member 304, in one embodiment, undergoes rotational motion generated by the motor 106. In some embodiments, the gear member 304 rotates in response to the rotation of the motor 106. In one embodiment, the gear member 304 rotates about a rotation axis 316 that is perpendicular to the shaft rotation axis 126. For example, the gear member 304 may be a portion of a bevel gear, a spiral bevel gear, or a hypoid gear. Such gears may act to rotate the rotation axis 90 degrees.

[0063] In some embodiments, gear member 304 has an eccentric interface 306. Eccentric interface 306 is disposed on a surface of gear member 304 such that eccentric interface 306 or its center is not located on gear axis of rotation 316. In other words, if gear member 304 is round, eccentric interface 306 will not be located at the center of gear member 304.

[0064] In response to rotation of gear member 304 and subsequent movement of eccentric interface 306, reciprocator interface 308 limits linear movement of eccentric interface 306 relative to reciprocator interface 308 in directions perpendicular to both reciprocation axis 124 and gear rotation axis 316. In other words, eccentric interface 306 is free to slide laterally within reciprocator interface 308 as gear member 304 rotates. Note that in addition to sliding relative to reciprocator interface 308, eccentric interface 306 may rotate.

[0065] 9, in a preferred embodiment, the eccentric interface 306 includes a pin 22 and a sleeve 24. The pin 22 is received within an off-center opening 26 defined in or through the gear member 304. The sleeve 24 is received within an elongated opening 34 defined in the end or head 36 of the reciprocator shaft 310.

[0066] The eccentric interface 306, in one embodiment, interfaces with a reciprocator interface or housing member 308. The housing member 308 has a head 36 of a reciprocator shaft 310 and defines a reciprocation space 38 in which the head 36 of the reciprocator shaft 310 and the eccentric interface component 306 can reciprocate. The housing member 308 has a number of legs 40 each having an interior surface defining a step 42 therein. The larger dimension between the legs defines the space for the head 36 to reciprocate and the smaller dimension between the legs defines the space for the sleeve to reciprocate. In a preferred embodiment, the reciprocator shaft 310 is L-shaped or has arms to connect to the actuation output or shaft 108 along the reciprocation axis.

[0067] In some embodiments, the effect of the interaction between the eccentric interface 306 and the reciprocator interface 308 is to convert rotational motion at the gear member 304 into reciprocating linear motion at the reciprocator shaft 310. The reciprocator shaft 310 transmits the reciprocating linear motion to the actuation output 108.

[0068] 3B and 9, in one embodiment, the gear member 304 includes a counterweight 312. The counterweight 312 is configured to counter the inertial forces generated by the reciprocating motion of the actuation output 108. The counterweight 312 may be positioned on the gear member 304 such that its center of mass 314 is not located along the gear axis of rotation 316. In certain embodiments, a first direction from the gear axis of rotation 316 to the center of mass 314 of the counterweight 312 may be opposite to a second direction from the gear axis of rotation 316 to the center of the eccentric interface 306. Preferably, the counterweight 312 is located on one side of the gear member 304 and the gear teeth are located on the opposite side. In another embodiment, the gear and the counterweight may be separate components.

[0069] In some embodiments, when the reciprocating therapy device 100 operates, the counterweight 312 exerts at least an opposing force component to the reaction force exerted by the reciprocator interface 308 on the eccentric interface 306. In other words, the counterweight 312 may act to counter the inertial forces generated by the reciprocating components and reduce vibrations caused by the reciprocating motion of the actuation output 108.

[0070] In some embodiments, the counterweight 312 can be sized to fit the reciprocating components of the reciprocating therapy device 100. For example, the counterweight 312 can have a mass similar to the reciprocating components, including, for example, the reciprocator shaft 310, the actuation output 108, and the attachment 202. In another embodiment, the counterweight has a mass between 45 grams and 55 grams.

[0071] FIG 11A shows the reciprocator shaft 310 in an extended position, and FIG 11C shows the reciprocator shaft 310 in a retracted position. FIG 11B and 11D show the reciprocator shaft between the retracted and extended positions. Note how the pin 22 and sleeve 24 (eccentric interface) move within the elongated opening 34 while the retracting member 308 continues to move linearly with the head 36 of the reciprocator shaft 310. FIG 11E shows the reciprocator shaft 310 in the extended position, but after the rotating assembly 47 has been rotated, as described below.

[0072] As shown in Figures 8-10, the actuating component 300 has a guide member 30 having a central opening through which a reciprocator shaft 310 extends. The guide member 30 is housed within a rotating housing 44 and remains stationary as the reciprocator shaft moves therethrough. In a preferred embodiment, the actuating component 300 also has a pin or shaft 16 about which a gear member 304 rotates a bearing 14, and a damping ring 28 for damping the connection between the housing and the metallic component.

[0073] 4 and 8-11E show the actuating components 300 of some embodiments of the reciprocating therapy device 100. The actuating components include a motor 106, a gear member 304, a reciprocator shaft 310, one or more flexible damping blocks 402, and a gear box 404. The actuating components 300 provide reciprocating motion via the reciprocator shaft 310 and handle vibrations transmitted to the housing 101.

[0074] The one or more flexible damping blocks 402 handle vibrations transmitted from the actuating component 300 to the housing 101. The one or more flexible damping blocks 402 may be disposed between the actuating component 300 and the housing 101.

[0075] The one or more flexible damping blocks 402 may comprise any material capable of absorbing vibrations. In some embodiments, the one or more flexible damping blocks 402 comprise a polymer. For example, the one or more flexible damping blocks 402 may comprise a flexible polymer. In one example, the one or more flexible damping blocks 402 may comprise a polyurethane foam, a thermoplastic elastomer ("TPE"), including but not limited to a styrenic block copolymer (TPE-s), a polyolefin blend (TPE-o), an elastomeric alloy (TPE-v or TPV), a thermoplastic polyurethane (TPU), a thermoplastic copolyester, or a thermoplastic polyamide. In another example, the one or more flexible damping blocks 402 may comprise a polyvinyl chloride (PVC), a low durometer PVC, or a urethane.

[0076] The gearbox 404, in one embodiment, includes the gear member 304 and the reciprocator 310. The gearbox 404 may provide a mounting point for the gear member 304 and the reciprocator 310. The gearbox 404 may limit the motion of the gear member 304 and the reciprocator to a particular direction or axis of rotation. The gearbox 404 may be attached to the housing 101. In some embodiments, the gearbox 404 is separated from the housing 101 by one or more flexible damping blocks 402.

[0077] 11C and 12, in some embodiments, the actuation output 108 and associated components are rotatable relative to the housing 101. The actuation output 108 can rotate relative to the housing 101 about an output rotation axis. In some embodiments, the output rotation axis is parallel to the gear rotation axis 316. In one embodiment, the output rotation axis is concurrent with the gear rotation axis 316. For example, the actuation output 108, the reciprocator 310, and the reciprocator interface 308 can be selectively rotatable about the gear rotation axis 316.

[0078] In one embodiment, the actuation output 108 can be selectively locked and unlocked for rotation by a user. For example, a user can unlock the actuation output 108 for rotation, rotate the actuation output 108 to a desired position relative to the housing 101, lock the actuation output 108 for rotation, and actuate the reciprocating therapy device 100.

[0079] As shown in FIG. 12, in a preferred embodiment, the rotating assembly 47 includes the rotating housing 44 (having a first rotating housing half 44a and a rotating housing half 44b), an articulation lock or button 46 having teeth 48 thereon, and a spring 18 in contact with the seat 43. The gear member 304, the reciprocator shaft 310, the axle 16, a portion of the gear box 404, and the bearing 14 are all housed within the rotating housing 44. The rotating assembly also includes a gear box cover 56 and a damping ring 52. The button 46 is biased outwardly by the spring 18 to a position where the teeth 48 engage with teeth 50 defined within the housing 101. The button 46 is movable between a first position where the teeth 48 engage with the teeth 50 and a second position where the teeth 48 engage with teeth 54 of the second rotating housing half 44b. When the button 46 is in the first position, the rotating assembly 47 cannot rotate. When the button is pressed to the second position, the teeth 48 disengage from the teeth 50 and engage the teeth 54 in the rotating housing 44, thereby allowing the entire rotating assembly 47 to rotate. The rotating housing 44 includes a main body portion 62 disposed within the housing and an arm portion 64 extending out of the housing through a rotation space 60. The arm portion 64 rotates within the rotation space 60 defined within the housing 101. As rotation occurs, it will be understood (compare FIGS. 11A-11D with FIG. 11E) that the gear member 304 and the gear box 404 do not rotate, but the storage member 308 rotates with the actuation output 108. As shown in FIGS. 8, 9 and 12, the housing 101 has a bulge portion 150 having a first bulge surface 150a positioned on a first side of a plane (herein referred to as the "housing plane") that diverges the housing 101, and a second bulge surface 150b positioned on a second side of the housing plane. The handle 120 has a first handle side 120b located on a first side of the housing plane and a second handle side 120c located on a second side of the housing plane. The first bulge surface 150a is located further away from the housing plane than the first handle side 120b and the second bulge surface 150b is located further away from the housing plane than the second handle side 120c.

[0080] FIG. 5 shows a flow chart illustrating a method for manufacturing the reciprocating therapeutic device of one embodiment of FIG.

[0081] FIG 5 is a flow chart diagram illustrating a method 500 of manufacturing the reciprocating therapy device 100 of some embodiments of FIG 1, and FIG 6 is a flow chart diagram illustrating a method 600 of using the reciprocating therapy device 100 of FIG 1. The methods 500, 600, in certain embodiments, are methods of using the systems and devices described herein and are described below with reference to the above figures. Nevertheless, the methods 500, 600 may be performed independently therefrom and are not intended to be specifically limited to the specific embodiments previously described with reference to the above figures.

[0082] As shown in Figure 5, a method 500 of manufacturing the reciprocating therapy device 100 is shown. In one embodiment of the method 500, in step 502, a housing 101 is provided. The housing 101 has a handle 120, which may have a handle axis 122. In step 504, a motor 106 is connected to the housing 101. The motor 106 may provide rotational motion.

[0083] In some embodiments, at step 506, the actuation output 108 is operably connected to the motor 106. The actuation output 108 may reciprocate in response to actuation of the motor 106. The reciprocating motion of the actuation output 108 may be along a reciprocating axis 124.

[0084] In some embodiments, the motor 106 has a shaft 116. The shaft 116 may rotate about a shaft rotation axis 126. The shaft rotation axis 126 may be parallel to a plane in which the handle axis 122 and the reciprocation axis 124 lie.

[0085] 6, a method of use 600 for the reciprocating therapy device 100 is shown. In one embodiment of the method of use 600, a force is applied to a body part by the actuation output 108 of the reciprocating therapy device 100 in step 602. The reciprocating therapy device 100 may have a housing 101. The housing 101 may have a handle 120 disposed on the housing 101. The handle 120 may define a handle axis 122.

[0086] The reciprocating therapy device 100 may also include a motor 106 connected to the housing 101. An actuation output 108 may be operatively connected to the motor 106. The actuation output 108 may be configured to reciprocate in response to actuation of the motor 106. The reciprocating motion of the actuation output 108 may be along a reciprocating axis 124.

[0087] The motor 106 may have a shaft 116 having a shaft rotation axis 126. The shaft rotation axis 126 may be parallel to a plane in which the handle axis 122 and the reciprocation axis 124 are disposed.

[0088] 14-27 show further embodiments of the present invention. Many of the components of the reciprocating therapeutic device or impact massage device of Fig. 14-27 are the same or similar to those described above with respect to the reciprocating therapeutic device 100. Therefore, the following description will focus on the different components.

[0089] 14-23 show one embodiment of a percussive massage device 212 having a rechargeable battery (and replaceable or removable battery) 114. The device 212 is commercially referred to as G3PRO. As shown in FIGS. 14-15, in a preferred embodiment, the percussive massage device 212 has three handle portions (referred to herein as a first handle portion 143, a second handle portion 145, and a third handle portion 147) that cooperate to define a central opening or handle opening 149. All of these handle portions are of sufficient length to be configured to allow a person to utilize the device by grasping that particular handle portion. The ability to grasp different handle portions allows a person (if using the device on their own body) to use the device on different body parts and at different angles, thus allowing them to reach body parts such as the back that may not be possible without the three handle portions.

[0090] 14, the first handle portion 143 defines a first handle portion axis A1, the second handle portion 145 defines a second handle portion axis A2, and the third handle portion 147 defines a third handle portion axis A3, which together form a triangle. In a preferred embodiment, the battery 114 is housed within the second handle portion 145 and the motor 106 is housed within the third handle portion 147.

[0091] 16-18 show a user's hands gripping the various handle portions. The length of each of the first, second, and third handle portions is sufficiently long so that a person with large hands can comfortably grip each handle portion with at least three or four fingers extending through the handle opening as shown in FIGS. 16-18. In a preferred embodiment, the first handle portion 143 has an inner edge 143a, the second handle portion 145 has an inner edge 145a, and the third handle portion 147 has an inner edge 147a, all of which cooperate to at least partially define the handle opening 149. As shown in FIG. 14, in a preferred embodiment, the first handle portion 143 has a finger projection 151 having a finger surface 151a that extends between the inner edge 143a of the first handle portion and the inner edge 147a of the third handle portion 147 to at least partially define the handle opening 149. In use, a user can place their index finger against finger surface 151a, as shown in Figure 16. These finger protrusions and finger surfaces provide a feedback point or support surface when the user places their index finger against the surface, aiding in control and comfort when the user uses the device. In a preferred embodiment, at least a portion of finger surface 151a is straight, as shown in Figure 14 (as opposed to the other "comers" of handle opening 149, which are rounded).

[0092] FIG. 14A shows the preferred dimensions of the interior surface of the handle opening 149. It will be appreciated that the interior surface will have a series of flat and curved surfaces. H1 is the dimension of the inner edge 143a of the first handle portion 143 (first handle portion length). H2 is the dimension of the inner edge 145a of the second handle portion 145f (second handle portion length). H3 is the dimension of the inner edge 147a of the third handle portion 147 (third handle portion length). H4 is the dimension of the finger surface 151a (finger projection length). R1 ​​is the radius between the inner edge 143a and the inner edge 145a, and R2 is the radius between the inner edge 145a and the inner edge 147a. In a preferred embodiment, H1 is about 94 mm, H2 is about 66 mm, H3 is about 96 mm, H4 is about 12 mm, R1 is about 6.5 mm, and R2 is about 6.5 mm, providing an arc length of about 10.2 mm. In the context of this specification, "about" means within 5 mm. In a preferred embodiment, the length of the inner edge of the handle opening is about 289 mm. The length of the inner edge of the handle opening can be between about 260 mm and about 320 mm in any combination of HI, H2, H3, H4, R1, and R2. It will be understood that these dimensions are optimized to allow a 95th percentile male to utilize the device by gripping any of the three handle portions, with at least three and preferably four fingers extending through the handle opening. It will be appreciated that any or all of the surfaces R1 and R2 can be considered part of any of the three adjacent handle portions. As shown in FIGS. 14 and 14A, the finger surface 151a is linear, and the first handle portion inner surface, the second handle portion inner surface, the third handle portion inner surface and the finger surface cooperate to define a quadrilateral having radii or rounded edges between each of the linear surfaces.

[0093] The device 212 also has multiple speed settings, preferably 1500 and 2400 RPM, but may be any speed or frequency as taught herein. Moreover, one of ordinary skill in the art will understand that the RPMs are listed as specific numbers that the RPMs may vary in use due to manufacturing tolerances. For example, at a 2400 RPM setting, the RPMs may actually vary between 2260 and 2640.

[0094] 19-23 show some of the internal and external components included in the treatment device 212 (208 and 210) shown in FIGS. 14-18 and 24-27. As shown in FIG. 19, the percussive massage device 212 has a housing 101 comprised of a first housing half and a second housing half 103. An outer cover 213 and an upper cover 215 are received on and connected to the first housing half 103 and the second housing half 103 via tabs 105 or other mechanisms or attachment methods (e.g., threaded fasteners, clips, adhesives, sonic welding, etc.). The percussive massage device 212 also has a tambour door 217, a battery 114, an inner suspension ring 219, and a rotating housing 44 (comprising a first rotating housing half 44a and a second rotating housing half 44b) that houses a gearbox 404.

[0095] As shown in FIG. 20, the device has a pinion coupling assembly 216 (similar to the flexible shaft damper 302 described above) disposed between the motor and the pinion gear or shaft wheel 117 (located on the shaft or pinion shaft 116). The pinion coupling assembly 216 is used to couple the motor to the gearbox to ensure full torque transmission, with no radial movement and minimal vibration and noise. The pinion coupling assembly 216 preferably has three separate components: a lower connector 218, a cross coupling 220, and an upper connector 222. In a preferred embodiment, the lower connector 218 has a main body portion 218a defining a central opening 218b that receives the motor shaft 248 and first and second lower connector arms 218c that extend outwardly from the main body portion 218a. The upper connector 222 has a main body portion 222a defining a central opening 222b for receiving the pinion shaft 117 and first and second upper connector arms 222c extending outwardly from the main body portion 222a. Preferably, the cross coupling 220 has a plurality of radially extending ribs 220a defining a plurality of channels 220b between the plurality of ribs 220a. The first and second lower connector members 218c and the first and second upper connector members 222c are sized and shaped to be received within the plurality of channels 220b to operatively engage the radially extending ribs. In use, the motor shaft 248 rotates the pinion coupling assembly, which in turn rotates the pinion shaft 117. These components work together to reduce noise and vibration. In a preferred embodiment, the lower and upper connectors are made of plastic and the cross coupling is made of elastomer. In a preferred embodiment, the cross coupling 220 is made of rubber, which has a stiffness that allows it to maintain strength and transmit torque efficiently (without significant energy dissipation) while isolating vibrations generated by the motor, however, the material is not a limitation to the present invention.

[0096] In a preferred embodiment, the pinion shaft 116 is received in and extends through bearings 224 and 225. Preferably, bearing 224 has a ball bearing (and provides radial support) and bearing 225 has a needle bearing (and provides radial support but can withstand higher temperatures). The pinion coupling assembly 216 is housed in a motor mount 250 that is connected to the motor 106 and through which the motor shaft 248 extends. The motor mount 250 is connected to a gearbox mount 252 as shown in FIG. 22.

[0097] As shown in Figures 20-22, the gearbox 404, in one embodiment, includes the gear member 304 and the reciprocator or push rod 230 / 310. The gearbox 404 may provide a mounting point for the gear member 304 and the reciprocator 310. The gearbox 404 may limit the motion of the gear member 304 and the reciprocator to a particular direction or axis of rotation. The gearbox 404 may be attached to the housing 101. In some embodiments, the gearbox 404 is separated from the housing 101 by one or more flexible damping blocks 402.

[0098] As shown in Figures 19 and 21, in a preferred embodiment, a rubber cover may be provided to prevent the gearbox from transmitting vibrations to the housing. A further inner suspension ring 219 isolates the gearbox vibrations from the handle and treatment structure. Preferably, the ring 219 is made of an elastomer and acts as a cushion to dampen vibrations between the rotating housing and the housing 101. In a preferred embodiment, the inner suspension ring 219 surrounds the outer radial surface of the main body portion 62 (see bearing surface 523 in Figure 21).

[0099] In one embodiment, the rotation of the actuation output or shaft 108 can be selectively locked and unlocked by a user. For example, a user can unlock the rotation of the shaft 108, rotate the actuation output 108 to a desired position relative to the housing 101, lock the rotation of the actuation output 108, and actuate the reciprocating therapy device 100. FIG. 21 shows some of the components that enable rotation of the rotating housing 44 along with the push rod assembly 108 and associated components. The button 515 has radially extending teeth 515a and is biased outwardly by a spring 519 that surrounds and seats on a spacer 518 (preferably made of foam). The spring 519 seats on damping members 520 and 517, which are preferably made of rubber to damp any vibrations of the spring 519. The push rod assembly also has a gear box cover 525 and a damping ring 521. The button 515 is biased outwardly by a spring 519 to a position where the teeth 515a engage with the teeth 516a of a defined hoop 516 connected to the housing 101. Preferably, the hoop 516 has an inner plastic ring 516b and an outer plastic ring 516c sandwiching a rubber ring 516 therebetween to help dampen vibrations and reduce noise. The button 515 is movable between a first position where the teeth 515a engage with the teeth 516a and a second position where the teeth 515 do not engage with the teeth 516a. When the button 515 is in the first position, the rotating assembly 47 cannot rotate. When the button is pressed to the second position, the teeth 515a disengage from the teeth 516a, thereby allowing the entire rotating assembly 47 to rotate. The rotating housing 44 includes a main body portion 62 disposed within the housing and an arm portion 64 extending out of the housing through the rotation space 60. The arm portion 64 rotates within a rotation space 60 defined within the housing 101. As shown in Fig. 15, in a preferred embodiment, the device 212 has a tambour door 217 that deploys within the rotation space 60 when the rotating assembly moves from the position shown in Fig. 14 to the position shown in Fig. 15. The tambour door 217 covers the slot 214. As shown in Fig. 15, an arm cover 524 covers the arm portion 64 of the rotating housing 44.

[0100] As shown in FIG. 22, the gearbox housing 404 has a clearance slot 214 defined therein for the push rod assembly 108. The slot 214 is provided to allow the push rod assembly 108 to move freely and articulate with the rotation housing 44. The clearance slot 214 has a first end 214a and a second end 214b. As shown in FIG. 22, the push rod assembly 108 extends through the clearance slot 214. It will be appreciated that as the rotation housing 44 is rotated from a first position to a second position, the push rod assembly 108 moves within the clearance slot 214 from the first end to the second end.

[0101] As shown in Figures 21-23, in a preferred embodiment, the push rod assembly or output shaft 108 has two halves or rods with an adapter member 226 between them to also help reduce noise and vibration. The adapter member 226 isolates vibrations generated in the gearbox and prevents them from being transmitted down the shaft to the treatment structure. The adapter member 226 may have multiple anti-rotation tabs to protect the push rod from torque applied by the user during use. The first rod portion 230 (push rod or reciprocator 310) of the output shaft 108 has an opening 232 at its end that receives a pivot pin 234. The connection between the first rod portion 230 and the adapter member 226 has a bushing 227 with the pin 234 and an elastomeric material to dampen vibration. The end of the first rod portion 230 with the opening 232 is received in a pocket 229 in the adapter member 226. The pin 234 extends through an opening in the side wall of the adapter member 226, through the bushing 227, and through the opening 232 to secure the first rod portion 230 to the adapter member 226. The adapter member 226 has a protrusion 231 extending therefrom that is received in an opening 233 in the end of the second rod portion 236 to connect the adapter member 226 to the second rod portion 236. In another embodiment, the end of the second rod portion 236 may be received within the opening in the adapter member 226. In use, the size of the upper opening of the pocket 229 allows the first rod portion to move laterally as the opening 232 pivots on the pin 234 and the first rod portion 231 reciprocates. This translates to linear reciprocating motion of the second rod portion 236. Because bushing 227 comprises at least some elastomeric material, vibrations are dampened (and noise is reduced) as push rod assembly 108 reciprocates.

[0102] A ring 526 seats on and surrounds the underside of arm 64 (see seat 64a in FIG. 21) to help hold first housing half 44a and second housing half 44b together. A washer or guide member 527 is received within rotating housing 44 to provide stability and a path for the reciprocating push rod assembly or output shaft 108.

[0103] 22, in this embodiment, the first rod portion 230 or push rod assembly 108 extends through the clearance slot 214. It will be understood that the term push rod assembly can include any of the embodiments described herein and can include a shaft with an adapter member that allows it to pivot between the two halves, or can include a single shaft that does not include any pivoting.

[0104] As shown in Figures 22-23, in a preferred embodiment, the male connector 110 has alignment tabs 497 above each ball that mate with a slot in the female opening. These tabs 497 aid in proper alignment with the treatment structure. U.S. Patent Application Publication No. 2019 / 0017528 is incorporated herein by reference in its entirety.

[0105] 24-29 show several embodiments of percussive massage devices that do not have a rotating assembly, but are similar to the percussive massage device 212 described above. The device 208 shown in FIGS. 24-27 is commercially referred to as G3. The device 210 shown in FIGS. 28-29 is commercially referred to as LIV. As shown in FIG. 26, in a preferred embodiment, the switch 104 has switch electronics 575 associated with it. The switch electronics 575 may include a printed circuit board (PCB) and other components that may enable the switch 104 to activate the motor 106, change the speed of the motor, and turn the device on and off, among other tasks. As shown in FIG. 26, in a preferred embodiment, the motor 106 is housed in the third handle portion 147, the battery 114 is housed in the second handle portion 145, and the switch electronics 575 is housed in the first handle portion 143. This configuration also applies to devices 210 and 212. 27 shows a cushion member 577 that surrounds the gearbox 404 and helps to dampen and reduce noise and vibration generated by components within the gearbox. The cushion member 577 is similar to the inner suspension ring 219 in the device 212. However, the cushion member 577 is thicker and does not need to rotate due to the elimination of a rotating housing in the devices 208 and 210. The cushion member 577 has notches or channels 579 therein to allow clearance for components such as the push rod assembly and pinion shaft.

[0106] Although the operations of the method(s) herein are shown and described in a particular order, the order of operations of each method may be changed such that certain operations may be performed in reverse order or such that certain operations may be performed, at least in part, simultaneously with other operations. In alternative embodiments, separate operation instructions or sub-operations may be performed intermittently and / or alternatingly.

[0107] Throughout the specification and claims, unless the context clearly requires otherwise, words such as "comprise", "comprising" and the like shall be construed in the inclusive sense, i.e., "including, but not limited to", as opposed to an exclusive or exhaustive sense. That is, as used herein, "connected", "coupled" or variations thereof mean either a direct or indirect connection or coupling between two or more elements. The coupling of connections between these elements may be physical, logical, or a combination thereof. Furthermore, when used in this application, words such as "herein", "above", "below" and similar words refer to this application as a whole and not to any particular parts. Where the context permits, words in the above detailed description of the preferred embodiment using single or multiple numerals may include multiple or single numerals respectively. Additionally, the word "or" when referring to a list of two or more items covers all of the following interpretations: any two or more items in the list, all of the items in the list, or any combination of the items in the list.

[0108] The above detailed description of the embodiments of the present disclosure is not intended to be exhaustive or to limit the teachings to the precise form set forth above. Although specific implementations and examples of the present disclosure have been described above for illustrative purposes, various equivalent modifications are possible within the scope of the present disclosure, as will be recognized by those skilled in the relevant art. For example, where some processes or blocks are presented in a given order, alternative embodiments may perform routines having some steps or employ systems having some blocks in a different order, and some processes or blocks may be deleted, moved, added, subdivided, combined, and / or modified to provide alternatives or subcombinations. Each of these processes or blocks may be implemented in a variety of different ways. Also, while some processes or blocks are at times shown to be performed in series, these processes or blocks may instead be performed in parallel or may be performed at different times. Any specific numbers described herein are merely examples, and alternative embodiments may employ different values ​​or ranges.

[0109] The above detailed description of the embodiments of the present disclosure is not intended to be exhaustive or to limit the teachings to the precise form described above. Although specific implementations and examples of the present disclosure have been described above for illustrative purposes, various equivalent modifications are possible within the scope of the present disclosure, as those skilled in the relevant art will recognize. Furthermore, any specific numbers described herein are merely examples, and alternative embodiments may employ different values, dimensions, or ranges. It will be understood that any dimensions described herein are merely exemplary, and that neither the dimensions nor the descriptions are intended to limit the present invention.

[0110] The teachings of the disclosure provided herein may be applied to other systems, not necessarily those described above. Elements and acts of the various embodiments described above may be combined to provide further embodiments.

[0111] The above-referenced patents and applications, including those that may be described in accompanying application documents, are incorporated herein by reference in their entirety. Aspects of the present disclosure can be modified, if necessary, to employ systems, functions, and concepts of the various references discussed above to provide further embodiments of the present disclosure.

[0112] These and other changes can be made to the present disclosure in light of the above detailed description of the preferred embodiments. The above description describes certain embodiments of the present disclosure and describes the best mode contemplated, but no matter how the above details are presented herein, the present teachings can be implemented in many ways. The details of the system may vary considerably in their implementation, but are encompassed by the subject matter disclosed herein. As stated above, a particular term used in describing a particular feature or aspect of the present disclosure should not be taken to mean that the term has been redefined herein to be limited to any particular feature, feature or aspect of the present disclosure to which the term relates. In general, the terms used in the following claims should not be construed to limit the present disclosure to the particular embodiments disclosed in the specification, unless the above detailed description of the preferred embodiments section explicitly defines such terms. Thus, the actual scope of the present disclosure encompasses not only the disclosed embodiments, but all equivalent ways of practicing or implementing the present disclosure under the claims.

[0113] Although certain aspects of the disclosure are presented below in certain claim forms, the inventors of this application contemplate various aspects of the disclosure in any number of claim forms. For example, although only one aspect of the disclosure is recited as a means-plus-function claim under 35 U.S.C. 112, paragraph 6, other aspects may likewise be embodied as means-plus-function claims or in other forms, such as embodied in a computer-readable medium. (Any claim intended to be treated under 35 U.S.C. 112, paragraph 6, begins with "means for.") Accordingly, the applicant of this application has the right to add additional claims after filing to entitle the applicant to additional claims for other aspects of the disclosure.

[0114] Thus, while illustrative embodiments of the invention have been shown and described, it should be understood that all terms used herein are descriptive rather than limiting, and that many changes, modifications, and substitutions may be made by those skilled in the art without departing from the spirit and scope of the invention. The present invention also includes the following inventions. The first aspect of the present invention is A method of using an impact massage device, comprising: The method comprises: obtaining an percussion massage device having a housing having a first handle portion, a second handle portion, and a third handle portion that cooperate to define a handle opening, a power source, a motor positioned within the housing, a switch for activating the motor, and a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor; activating the motor using the switch; gripping the first handle portion; Massaging a first body part; Alternatively, grasping the second handle portion and massaging the first body part; Alternatively, a method of using a percussion massage device comprising grasping the third handle portion and massaging the first body part. A second aspect of the present invention is A method in a first aspect, wherein the first handle portion defines a first axis, the second handle portion defines a second axis, and the third handle portion defines a third axis, the first axis, the second axis, and the third axis acting together to form a triangle. A third aspect of the present invention is the first handle portion has a first handle portion inner edge and defines a first handle portion length, the first handle portion length being long enough such that when a user grasps the first handle portion with their hand, at least portions of three fingers may extend through the handle opening and contact the first handle portion inner edge; the second handle portion has a second handle portion inner edge and defines a second handle portion length, the second handle portion length being long enough such that when a user grasps the second handle portion with their hand, at least portions of three fingers may extend through the handle opening and contact the second handle portion inner edge; The method of the second aspect, wherein the third handle portion has a third handle portion inner edge and defines a third handle portion length, the third handle portion length being sufficiently long such that when a user grasps the third handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the third handle portion inner edge. A fourth aspect of the present invention is The method of the third aspect, wherein the first handle portion is generally straight, the second handle portion is generally straight, and the third handle portion is generally straight. A fifth aspect of the present invention is The method comprises: gripping the second handle portion; massaging a second body part; gripping the third handle portion; The method of the first aspect, further comprising the step of massaging a third body part. A sixth aspect of the present invention is a method for producing a composition comprising the steps of: A method in a first aspect, wherein the switch has switch electronics associated with it, the motor is housed in the third handle portion, the battery is housed in the second handle portion, and the switch electronics is housed in the first handle portion. A seventh aspect of the present invention is a method for producing a composition comprising the steps of: In the impact massage device, Housing and Power supply, a motor positioned within the housing; a switch for operating the motor; a push rod assembly operatively connected to the motor and configured to reciprocate in response to actuation of the motor. An eighth aspect of the present invention is a method for producing a composition comprising the steps of: A seventh aspect of the impact massage device is one in which the housing has a first handle portion, a second handle portion and a third handle portion which cooperate to define a handle opening, the first handle portion defining a first axis, the second handle portion defining a second axis and the third handle portion defining a third axis, the first axis, the second axis and the third axis cooperating to form a triangle. A ninth aspect of the present invention is a method for producing a composition comprising the steps of: the first handle portion has a first handle portion inner edge and defines a first handle portion length, the first handle portion length being long enough such that when a user grasps the first handle portion with their hand, at least portions of three fingers may extend through the handle opening and contact the first handle portion inner edge; the second handle portion has a second handle portion inner edge and defines a second handle portion length, the second handle portion length being long enough such that when a user grasps the second handle portion with their hand, at least portions of three fingers may extend through the handle opening and contact the second handle portion inner edge; An eighth aspect of the impact massage device, wherein the third handle portion has a third handle portion inner edge and defines a third handle portion length, the third handle portion length being long enough that when a user grasps the third handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the third handle portion inner edge. A tenth aspect of the present invention is a method for producing a composition comprising the steps of: In the impact massage device according to an eighth aspect, the first handle portion is substantially straight, the second handle portion is substantially straight, and the third handle portion is substantially straight. An eleventh aspect of the present invention is a method for producing a composition comprising the steps of: A seventh aspect of the impact massage device, wherein the switch has switch electronics associated with it, the power source is a battery housed within the second handle portion, and the switch electronics is housed within the first handle portion. A twelfth aspect of the present invention is a method for producing a composition comprising the steps of: A seventh aspect of the impact massage device, wherein the motor is configured to rotate a pinion shaft having a pinion gear thereon about a shaft rotation axis, the housing has a gear member disposed within the housing that is operably engaged with the pinion gear and rotates about a gear rotation axis, the push rod assembly is operably connected to the gear member, and rotational motion of the pinion shaft is converted into reciprocating motion of the push rod assembly via engagement between the pinion gear and the gear member. A thirteenth aspect of the present invention is a method for producing a composition comprising the steps of: A twelfth aspect of the impact massage device, wherein the motor has a motor shaft extending outwardly from the motor, and a pinion coupling assembly is disposed between the motor shaft and the pinion shaft, the pinion coupling having a lower connector operably connected to the motor shaft, an upper connector operably connected to the pinion shaft, and a cross coupling disposed between the lower connector and the upper connector. A fourteenth aspect of the present invention is a method for producing a composition comprising the steps of: the lower connector has a main body portion defining a central opening for receiving the motor shaft, and first and second lower connector arms extending outwardly from the main body portion; the upper connector has a main body portion defining a central opening for receiving the pinion shaft, and first and second upper connector arms extending outwardly from the main body portion; A thirteenth aspect of the impact massage device, wherein the cross coupling has a plurality of radially extending ribs, and the first lower connector member and the second lower connector member and the first upper connector member and the second upper connector member operably engage with the plurality of radially extending ribs. A fifteenth aspect of the present invention is a method for producing a composition comprising the steps of: The percussive massage device of a fourteenth aspect, wherein the lower connector and the upper connector comprise plastic and the cross coupling comprises an elastomer. A sixteenth aspect of the present invention is a method for producing a composition comprising the steps of: A twelfth aspect of the impact massage device, wherein the gear member is disposed within a rotating housing rotatable between at least a first position and a second position, a gear box housing accommodating the gear member is disposed within the rotating housing, the gear box housing has a clearance slot having a first end and a second end defined therein, the push rod assembly extends through the clearance slot, and when the rotating housing is rotated from the first position to the second position, the push rod assembly moves within the clearance slot from a position adjacent to the first end to a position adjacent to the second end. A seventeenth aspect of the present invention is a method for producing a composition comprising the steps of: A seventh aspect of the impact massage device, wherein the push rod assembly has a first rod portion having a base end and a distal end, and a second rod portion having a base end and a distal end, the base end of the first rod portion being operably connected to the motor, and the adapter assembly is disposed between the first rod portion and the second rod portion, and the adapter assembly enables the first rod portion to be rotated relative to the second rod portion. An eighteenth aspect of the present invention is a method for producing a composition comprising the steps of: A seventeenth aspect of the present invention is an impact massage device, wherein the adapter assembly includes an adapter member having a pocket therein for receiving the distal end of the first rod portion, and a pivot pin extends into the pocket and through the distal end of the first rod portion. A nineteenth aspect of the present invention is a method for producing a composition comprising the steps of: 18. The percussion massage device of claim 17, wherein the adapter member has a protrusion that is received within the base end of the second rod portion. A twentieth aspect of the present invention provides a method for producing a composition comprising the steps of: The impact massage device according to a seventh aspect, wherein the motor is housed within the third handle portion.

Claims

1. In the impact massage device, The impact massage device is a housing comprising a first handle portion, a second handle portion and a third handle portion cooperating to at least partially define a handle opening, the first handle portion defining a first axis, the second handle portion defining a second axis and the third handle portion defining a third axis, the first axis, the second axis and the third axis being coplanar and cooperating to form a triangle enclosing the handle opening, the first handle portion being generally linear, the second handle portion being generally linear and the third handle portion being generally linear, and a user can independently grasp any of the first handle portion, the second handle portion or the third handle portion to use the percussion massage device; a rechargeable battery positioned within one of the first handle portion, the second handle portion, or the third handle portion of the housing; and a motor positioned within one of the first handle portion, the second handle portion, or the third handle portion; a switch for operating the motor; 11. An impact massage device comprising: a push rod assembly operatively connected to the motor and configured for reciprocating movement in response to actuation of the motor, a distal end of the push rod assembly having a connector, a massage attachment configured to be removably received on the connector, the massage attachment having a shaft recess having opposing first and second detents, the connector having first and second outwardly biased ball bearings, the connector configured to be received within the shaft recess, the first outwardly biased ball bearing being received within the first detent and the second outwardly biased ball bearing being received within the second detent.

2. the first handle portion has a first handle portion inner edge and defines a first handle portion length, the first handle portion length being configured to be long enough such that when a user grasps the first handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the first handle portion inner edge; the second handle portion has a second handle portion inner edge and defines a second handle portion length, the second handle portion length being configured to be long enough such that when a user grasps the second handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the second handle portion inner edge; 2. The percussion massage device of claim 1, wherein the third handle portion has a third handle portion inner edge and defines a third handle portion length, the third handle portion length being configured to be long enough such that when a user grasps the third handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the inner edge of the third handle portion.

3. A method of using an impact massage device, comprising: The method comprises:

1. An percussive massage device comprising: a housing having a first handle portion, a second handle portion, and a third handle portion, the first handle portion, and the second handle portion cooperating to define a handle opening; a rechargeable battery positioned within one of the first handle portion, the second handle portion, or the third handle portion of the housing; a motor positioned within one of the first handle portion, the second handle portion, or the third handle portion of the housing; a switch for activating the motor; and a counterweight member operably connected to the motor, the counterweight member having a counterweight and a shaft, the counterweight and the shaft configured to rotate about an axis of rotation, the shaft and the counterweight rotating about the axis of rotation. and a massage attachment removably secured to the distal end of the second rod portion, the first handle portion defining a first axis, the second handle portion defining a second axis, the third handle portion defining a third axis, the first axis, the second axis, and the third axis being coplanar and cooperating to form a triangle surrounding the handle opening, the first handle portion being generally linear, the second handle portion being generally linear, and the third handle portion being generally linear. activating the motor using the switch; gripping the first handle portion; Massaging a first body part; grasping the second handle portion to massage the first body part or the second body part; and c) grasping the third handle portion to massage the first body part, the second body part, or a third body part.

4. the first handle portion has a first handle portion inner edge and defines a first handle portion length, the first handle portion length being long enough such that when a user grasps the first handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the first handle portion inner edge; the second handle portion has a second handle portion inner edge and defines a second handle portion length, the second handle portion length being long enough such that when a user grasps the second handle portion with their hand, at least a portion of three fingers may extend through the handle opening and contact the second handle portion inner edge; 4. The method of claim 3, wherein the third handle portion has a third handle portion inner edge and defines a third handle portion length, the third handle portion length being long enough such that when a user grasps the third handle portion with their hand, at least portions of three fingers extend through the handle opening and contact the inner edge of the third handle portion.

5. In the impact massage device, The impact massage device is a housing including a first handle portion, a second handle portion, and a third handle portion cooperating to at least partially define a handle opening, the first handle portion defining a first axis, the second handle portion defining a second axis, and the third handle portion defining a third axis, the first axis, the second axis, and the third axis being coplanar and cooperating to form a triangle surrounding the handle opening, the first handle portion, the second handle portion, and the third handle portion being configured such that a user can independently grasp either the first handle portion, the second handle portion, or the third handle portion to use the percussion massage device, the first handle portion having a first handle portion inner edge and defining a first handle portion length, the first handle portion length being adapted to accommodate at least a portion of three fingers of a user when gripping the first handle portion with their hand. the second handle portion having a second handle portion inner edge and defining a second handle portion length, the second handle portion length configured to be long enough such that when a user grips the second handle portion with his / her hand, at least a portion of three fingers extend through the handle opening and contact the inner edge of the second handle portion; the third handle portion having a third handle portion inner edge and defining a third handle portion length, the third handle portion length configured to be long enough such that when a user grips the third handle portion with his / her hand, at least a portion of three fingers extend through the handle opening and contact the inner edge of the third handle portion; and the first handle portion, the second handle portion, and the third handle portion are generally straight. a rechargeable battery positioned within one of the first handle portion, the second handle portion, or the third handle portion of the housing; and a brushless motor positioned within one of the first handle portion, the second handle portion, or the third handle portion; a switch for operating the brushless motor; a counterweight member operatively connected to the brushless motor, the counterweight member having a counterweight and a shaft, the counterweight and the shaft configured to rotate about an axis of rotation; a push rod assembly operatively connected to the brushless motor and configured to reciprocate in response to operation of the brushless motor, the push rod assembly having a first rod portion having a proximal end and a distal end, and a second rod portion having a proximal end and a distal end, the proximal end of the first rod portion operatively connected to the shaft of the counterweight member, the distal end of the first rod portion pivotally connected to the proximal end of the second rod portion, the distal end of the push rod assembly having a connector configured to removably receive a massage attachment.

6. 6. The percussion massage device of claim 5, wherein the first handle portion, the second handle portion, and the third handle portion are oriented such that a user can grip either the first handle portion, the second handle portion, or the third handle portion independently in one hand to use the percussion massage device at a plurality of different angles.

7. 6. The percussion massage device of claim 5, wherein said axis of rotation extends laterally through said housing, and said second rod portion defines a reciprocating axis, said reciprocating axis extending perpendicular to said axis of rotation.

8. 2. The percussion massage device of claim 1, wherein the housing has an arm portion, and the distal end of the push rod assembly extends outside the arm portion such that the distal end of the push rod assembly is located outside the housing.

9. 8. The percussion massage device of claim 7, wherein the housing has a bulge, the first handle portion extends rearward from the bulge, the second handle portion extends downward and forward from the first handle portion, and the third handle portion extends forward and upward from the second handle portion to the bulge.

10. 10. The percussion massage device of claim 9, wherein the bulge has a circular shape defining a central axis extending laterally through the housing, and the push rod assembly defines a reciprocating axis, the reciprocating axis extending perpendicular to the central axis.

11. 2. The impact massage device according to claim 1, wherein the first axis and the second axis form a first angle, the second axis and the third axis form a second angle, and the third axis and the first axis form a third angle, and the first angle, the second angle, and the third angle are all different from each other.

12. 6. The percussion massage device of claim 5, wherein the first handle portion has a finger protrusion having a finger surface extending between the inner edge of the first handle portion and the inner edge of the third handle portion and at least partially defining the handle opening, the finger surface being linear.

13. 2. The impact massage device of claim 1, wherein the first handle portion has a first handle portion outer edge that is substantially straight, the second handle portion has a second handle portion outer edge that is substantially straight, the third handle portion has a third handle portion outer edge that is substantially straight, the outer edge of the first handle portion defines an extended first handle portion outer edge, the outer edge of the second handle portion defines an extended second handle portion outer edge, and the outer edge of the third handle portion defines an extended third handle portion outer edge, and the extended first handle portion outer edge, the extended second handle portion outer edge, and the extended third handle portion outer edge cooperate to form a triangle surrounding the handle opening.

14. 2. The impact massage device of claim 1, wherein the first handle portion has a first handle portion inner edge, the second handle portion has a second handle portion inner edge that is generally straight, the third handle portion has a third handle portion inner edge that is generally straight, the inner edge of the first handle portion defines an extended first handle portion inner edge, the inner edge of the second handle portion defines an extended second handle portion inner edge, the inner edge of the third handle portion defines an extended third handle portion inner edge, and the extended first handle portion inner edge, the extended second handle portion inner edge, and the extended third handle portion inner edge cooperate to form a triangle surrounding the handle opening.

15. 2. The impact massage device of claim 1, wherein the shaft recess has a first planar surface and a second planar surface, the first detent is formed in the first planar surface, the second detent is formed in the second planar surface, the connector has a first planar surface and a second planar surface, the first planar surface of the connector faces the first planar surface of the shaft recess, and the second planar surface of the connector faces the second planar surface of the shaft recess.

16. 16. The percussion massage device of claim 15, wherein the connector has first and second alignment tabs located above the first and second outwardly biased ball bearings, respectively, and the shaft recess has first and second slots, the first alignment tabs being received in the first slots and the second alignment tabs being received in the first slots.

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