Abstract: The present disclosure relates to a machine head reducer or assembly, including a housing with a central axis and a surface with a plurality of undulations substantially parallel and equidistant to the central axis, a first driven member having a central axis which is substantially concentric with the housing central axis, a second axis parallel and eccentric to the central axis, a second driven member having a central axis substantially concentric with the second axis of the first driven member with a first surface having a plurality of undulations in mesh contact with the undulations of the housing surface, a second surface having a plurality of undulations where the undulations of the first surface and the undulations of the second surface are parallel and equidistant to the second driven member central axis.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: An atrial clip assembly includes a first arm assembly having a first arm body that includes a first support portion, and a first spine portion, with a first portion of the first spine portion extending along and within a corresponding first portion of the first support portion. The first arm assembly further includes a first suture, wherein a first portion of the first suture is disposed around the first portion of the first spine portion, and wherein a second portion of the first suture extends external to the first support portion. The atrial clip assembly also includes a second arm assembly including a second arm body that includes a second support portion. The atrial clip assembly further includes a hinge portion coupling a first end of the first arm body to a first end of the second arm body, the hinge portion being flexible.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A dock for a surgical equipment holder is disclosed. The dock for a surgical equipment holder includes a base having a central arm mount and a lower clamping jaw. The dock for a surgical equipment holder also includes an upper clamp jaw movably coupled to the base. The dock for a surgical equipment holder also includes a central docking arm coupled to the central arm mount and a central ball cup coupled to the to the central docking arm. The dock for a surgical equipment holder also includes a central attachment nut coupled to the central ball cup. The central attachment nut may include an extendable moment arm, and the dock may also include a ball coupled between the central ball cup and the central attachment nut and a surgical equipment holder attached to the ball.

Abstract: A dock for a surgical equipment holder is disclosed. The dock for a surgical equipment holder includes a base having a central arm mount and a lower clamping jaw. The dock for a surgical equipment holder also includes an upper clamp jaw movably coupled to the base. The dock for a surgical equipment holder also includes a central docking arm coupled to the central arm mount and a central ball cup coupled to the to the central docking arm. The dock for a surgical equipment holder also includes a central attachment nut coupled to the central ball cup. The central attachment nut may include an extendable moment arm, and the dock may also include a ball coupled between the central ball cup and the central attachment nut and a surgical equipment holder attached to the ball.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A device for vessel harvesting is disclosed. The device for vessel harvesting includes a distal housing, a dissector coupled to the distal housing, a drive element coupled to the dissector, and an actuator coupled to the drive element. The device for vessel harvesting may also include a rotatable dissector, a shaft coupled to the distal housing having a first articulation joint movable within a first plane, and a second articulation joint movable within a second plane, which is substantially perpendicular to the first plane, a barrel chain drive element coupled to the rotatable dissector, and an actuator coupled to the drive element. The device for vessel harvesting may also include a member slidably engaged to the distal tip.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A suturing device for minimally invasive surgery is disclosed. The suturing device has a head defining one or more ferrule holders and a tissue bite area. The device also has a first needle comprising a flywheel portion and one or more curved arms extending from the flywheel portion, each of the one or more curved arms comprising a ferrule engaging tip, wherein the first needle is pivotably coupled to the head. The suturing device further has a first actuator coupled to the first needle and configured to rotate it from a retracted position, where the ferrule engaging tip of each of the one or more curved arms starts away from the one or more ferrule holders, through the tissue bite area, and to an engaged position where the ferrule engaging tip of each of the one or more curved arms is operationally aligned with the one or more ferrule holders.

Abstract: A suturing device for minimally invasive surgery is disclosed. The suturing device has a head defining one or more ferrule holders and a tissue bite area. The device also has a first needle comprising a flywheel portion and one or more curved arms extending from the flywheel portion, each of the one or more curved arms comprising a ferrule engaging tip, wherein the first needle is pivotably coupled to the head. The suturing device further has a first actuator coupled to the first needle and configured to rotate it from a retracted position, where the ferrule engaging tip of each of the one or more curved arms starts away from the one or more ferrule holders, through the tissue bite area, and to an engaged position where the ferrule engaging tip of each of the one or more curved arms is operationally aligned with the one or more ferrule holders.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A dock for a surgical equipment holder is disclosed. The dock for a surgical equipment holder includes a base having a central arm mount and a lower clamping jaw. The dock for a surgical equipment holder also includes an upper clamp jaw movably coupled to the base. The dock for a surgical equipment holder also includes a central docking arm coupled to the central arm mount and a central ball cup coupled to the to the central docking arm. The dock for a surgical equipment holder also includes a central attachment nut coupled to the central ball cup. The central attachment nut may include an extendable moment arm, and the dock may also include a ball coupled between the central ball cup and the central attachment nut and a surgical equipment holder attached to the ball.

Abstract: A rotary motor and a method of making the same include a vibrating motor body which has two orthogonal first bending modes and is substantially enclosed within a housing. A shaft is frictionally coupled to the vibrating motor body and is arranged to rotate in at least one direction about a rotation axis in response to the vibrating motor body. The shaft is frictionally coupled the vibrating motor body by a force substantially perpendicular to the rotation axis. One or more bearings support the shaft, are connected to the housing, and define the axis of rotation of the shaft.

Abstract: A rotary motor and a method of making the same include a vibrating motor body which has two orthogonal first bending modes and is substantially enclosed within a housing. A shaft is frictionally coupled to the vibrating motor body and is arranged to rotate in at least one direction about a rotation axis in response to the vibrating motor body. The shaft is frictionally coupled the vibrating motor body by a force substantially perpendicular to the rotation axis. One or more bearings support the shaft, are connected to the housing, and define the axis of rotation of the shaft.

Abstract: The differential steering drive for a tracked vehicle includes a drive differential interconnecting the drive shafts for the tracks and a steering differential for superimposing additive and subtractive rotations to the tracks for steering and pivot turning. In the preferred embodiment for high speed tracked vehicles, the drive differential is an all-gear no-clutch type limited-slip differential, and the steering differential is an unlimited-slip differential. The differentials are arranged to provide no-slip track operation traveling in straight paths or when steering so long as at least one track has traction. In another embodiment for pivot-turning slow-moving off-road vehicles, both the drive differential and the steering differential are all-gear no-clutch type limited-slip differentials.

Abstract: The transmission includes an orbital gear complex in combination with a variable hydraulic pump and motor. The input to the transmission is increased in speed by the orbital gearing such that, when the pump and motor are not operating, the orbiter is stationary, and the orbital gearing produces an overdrive condition. A gear reduction is accomplished by rotating the web with the web-rotating device, providing a high gear reduction. The pump and motor are preferably long-piston hydraulic machines with infinitely variable swash plates. The hydraulic machines preferably have wobblers stabilized by full gimbals and hold-down plates with elongated holes for the long pistons to eliminate possible impacts between the hold-down plates and the head ends of the long pistons when the swash-plates are at or near their maximum angle of inclination.

Abstract: Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid “input” or fluid “output” passageways, being replenished solely by a minimal flow of fluid to and from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies. The preferred embodiment includes a fixed cylinder block, a roller bearing mounting between the wobbler and rotor of a split-swash plate, with piston shoes contacting the wobbler directly without any intermediary apparatus.