A percussive therapy device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, a push rod assembly operatively connected to the motor and configured to provide reciprocating motion in response to activation of the motor, and a massage attachment secured to a distal end of the push rod assembly. The reciprocating motion of the push rod assembly has a user-adjustable amplitude.

A power tool includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.

A power tool includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.

A foldable saw includes, on a saw handle body, a latch body made of spring wire and including a coil section, a stop pin section, a latch section, and an operation section. The saw handle body includes at least a seating recess, a pin hole, and a receiving groove. The latch body is configured, in the state of being attached to the saw handle body, such that the latch section located in front of the coil section enters into the receiving groove by spring bias, and that the latch section retreats against the spring bias in response to an operation of the operation section located in the rear of the coil section.

A foldable saw includes, on a saw handle body, a latch body made of spring wire and including a coil section, a stop pin section, a latch section, and an operation section. The saw handle body includes at least a seating recess, a pin hole, and a receiving groove. The latch body is configured, in the state of being attached to the saw handle body, such that the latch section located in front of the coil section enters into the receiving groove by spring bias, and that the latch section retreats against the spring bias in response to an operation of the operation section located in the rear of the coil section.

A percussive therapy device that includes a housing, an electrical source, a motor positioned in 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 housing includes first, second and third handle portions and a head portion that cooperate to define a handle opening. 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 and the first, second and third axes cooperate to form a triangle. The motor is positioned in the head portion of the housing, and at least a portion of the push rod assembly extends outside of the head portion.

In accordance with one embodiment, an integrally formed saw blade includes a cutting edge extending along an axis from a distal front tip to a proximal rear portion, the cutting edge includes a portion with cutting teeth and a portion with no cutting teeth. A lateral edge extends along the axis from the distal front tip of the saw blade to the proximal rear portion of the fixing shank. A blade portion, with a maximum height defined by the cutting edge and the lateral edge, terminates at a corner. A fixing shank with a maximum height defined by the cutting edge and the lateral edge that is shorter than the blade portion terminates at the cutting teeth. A transition region extends from the fixing shank to the blade portion, and at least two spaced apart impressions are formed in the transition region but do not extend into the blade portion.

In accordance with one embodiment, an integrally formed saw blade includes a cutting edge extending along an axis from a distal front tip to a proximal rear portion, the cutting edge includes a portion with cutting teeth and a portion with no cutting teeth. A lateral edge extends along the axis from the distal front tip of the saw blade to the proximal rear portion of the fixing shank. A blade portion, with a maximum height defined by the cutting edge and the lateral edge, terminates at a corner. A fixing shank with a maximum height defined by the cutting edge and the lateral edge that is shorter than the blade portion terminates at the cutting teeth. A transition region extends from the fixing shank to the blade portion, and at least two spaced apart impressions are formed in the transition region but do not extend into the blade portion.

A surgical saw blade cartridge includes a bar, a blade and a drive link. The bar includes a first plate and an opposed second plate defining a space therebetween, and an opening in at least one of the plates for releasable connection to a saw. The blade includes a base moveably disposed in the space between the plates and a head integral with the base located outside of the bar. The head has teeth at least as wide as a portion of the bar adjacent the head. The drive link extends through the bar and is moveable therein with a proximal end configured for attachment to a drive component of the saw and a distal end connected to either the base of the blade or a pivot link. The bar includes a structural member adjacent the head that extends forward of the head.

A surgical saw blade cartridge includes a bar, a blade and a drive link. The bar includes a first plate and an opposed second plate defining a space therebetween, and an opening in at least one of the plates for releasable connection to a saw. The blade includes a base moveably disposed in the space between the plates and a head integral with the base located outside of the bar. The head has teeth at least as wide as a portion of the bar adjacent the head. The drive link extends through the bar and is moveable therein with a proximal end configured for attachment to a drive component of the saw and a distal end connected to either the base of the blade or a pivot link. The bar includes a structural member adjacent the head that extends forward of the head.