A VCM is disclosed, the motor including a stator including a first driving unit, a rotor arranged inside the stator, including a second driving unit responding to the first driving unit and mounted therein with a lens, a base fixing the stator, and an elastic member coupled to the rotor to float the rotor from the base in a case a driving signal for driving the first and second driving units is not applied to the first and second driving units.

A fluid moving apparatus includes an electric motor having a rotor and a stator and a fluid displacement member. The rotor rotates relative to the stator on a common axis to generate a rotational output. The rotational output is provided to the fluid displacement member to power the fluid displacement member to one of move linearly along and rotate about the common axis. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the common axis.

An externally programmable shunt valve assembly that includes a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly. The motor may further include a position sensing mechanism that allows a position of the rotor, and associated pressure setting of the valve, to be determined using an external magnetic sensor. In certain examples the motor further includes a mechanical brake that is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.

An externally programmable shunt valve assembly that includes a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly. The motor may further include a position sensing mechanism that allows a position of the rotor, and associated pressure setting of the valve, to be determined using an external magnetic sensor. In certain examples the motor further includes a mechanical brake that is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.

Magnetic-based actuation mechanisms for and methods of actuating magnetically responsive microposts in a reaction (or assay) chamber is disclosed. Namely, a microfluidics system is provided that includes a microfluidics device (or cartridge) that includes the reaction (or assay) chamber in which a field of surface-attached magnetically responsive microposts is installed. The presently disclosed magnetic-based actuation mechanisms are provided in close proximity to the magnetically responsive microposts wherein the magnetic-based actuation mechanisms are used for actuating the magnetically responsive microposts. Namely, the magnetic-based actuation mechanisms generate an actuation force that is used to compel at least some of the magnetically responsive microposts to exhibit motion. Additionally, methods of using the presently disclosed magnetic-based actuation mechanisms for actuating the magnetically responsive microposts are provided.

Magnetic-based actuation mechanisms for and methods of actuating magnetically responsive microposts in a reaction (or assay) chamber is disclosed. Namely, a microfluidics system is provided that includes a microfluidics device (or cartridge) that includes the reaction (or assay) chamber in which a field of surface-attached magnetically responsive microposts is installed. The presently disclosed magnetic-based actuation mechanisms are provided in close proximity to the magnetically responsive microposts wherein the magnetic-based actuation mechanisms are used for actuating the magnetically responsive microposts. Namely, the magnetic-based actuation mechanisms generate an actuation force that is used to compel at least some of the magnetically responsive microposts to exhibit motion. Additionally, methods of using the presently disclosed magnetic-based actuation mechanisms for actuating the magnetically responsive microposts are provided.

An externally programmable shunt valve assembly that includes a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly. The motor may further include a position sensing mechanism that allows a position of the rotor, and associated pressure setting of the valve, to be determined using an external magnetic sensor. In certain examples the motor further includes a mechanical brake that is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.

An externally programmable shunt valve assembly that includes a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly. The motor may further include a position sensing mechanism that allows a position of the rotor, and associated pressure setting of the valve, to be determined using an external magnetic sensor. In certain examples the motor further includes a mechanical brake that is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.

A motor unit includes: a first rotating electric machine which includes a cylindrical first stator, a first rotor disposed coaxially with the first stator, a first shaft disposed coaxially with the first rotor, and a cylindrical first casing accommodating the first stator and the first rotor; a second rotating electric machine which includes a cylindrical second stator, a second rotor disposed coaxially with the second stator, a second shaft disposed coaxially with the second rotor, and a cylindrical second casing accommodating the second stator and the second rotor; a single drive device which is integrally fixed across a peripheral surface in a diameter direction of the first rotor in the first casing and a peripheral surface in a diameter direction of the second rotor in the second casing; and a surface-matching fixing portion which is fixed by a fixing member while an axial end surface of the first casing comes into contact with an axial end surface of the second casing.

A motor unit includes: a first rotating electric machine which includes a cylindrical first stator, a first rotor disposed coaxially with the first stator, a first shaft disposed coaxially with the first rotor, and a cylindrical first casing accommodating the first stator and the first rotor; a second rotating electric machine which includes a cylindrical second stator, a second rotor disposed coaxially with the second stator, a second shaft disposed coaxially with the second rotor, and a cylindrical second casing accommodating the second stator and the second rotor; a single drive device which is integrally fixed across a peripheral surface in a diameter direction of the first rotor in the first casing and a peripheral surface in a diameter direction of the second rotor in the second casing; and a surface-matching fixing portion which is fixed by a fixing member while an axial end surface of the first casing comes into contact with an axial end surface of the second casing.