Drive shaft

About: Drive shaft is a research topic. Over the lifetime, 55307 publications have been published within this topic receiving 276236 citations. The topic is also known as: driveshaft & driving shaft.

Apparatus and method for sternotomy closure

Abstract: A tissue closure device includes a pusher assembly having a drive arm extending from a drive shaft and a drive mechanism at a distal end of the drive arm, wherein the drive mechanism is capable of releasably engaging and rotating a suturing needle having a pointed end and a blunt end about a rotational axis and a cartridge having a protective housing and the suturing needle, the cartridge extending from a distal end of a cartridge holder assembly and releasably attached to the cartridge holder assembly. A pointed end of the suturing needle may be positioned within the protective housing before and after a complete rotation of the suturing needle about the rotational axis. A removable electronic module may be provided controlled by an actuator that mechanically engages the drive shaft to rotate the drive shaft and the drive mechanism, thereby rotating the suturing needle about the rotational axis.

Cannulated flexible drive shaft

Abstract: A flexible cannulated drive shaft (1) having a plurality of interlocking sections (6) having multi-angled dovetails cut into the drive shaft. Each dovetail design is made up of substantially triangular-shaped pins (7) and substantially triangular-shaped sockets (8) that alternate around the circumference of each interlocking section. The pins of one interlocking section moveably engage the sockets of a second interlocking section and vice versa. Furthermore, the substantially triangular-shaped pins and substantially triangular-shaped sockets stay locked together whether the drive shaft is being rotated clockwise or counterclockwise. Angled surfaces (21, 22) add greater stability to the drive shaft and prevent the interlocking sections from coming apart.

Device and method for applying rotary tacks

Abstract: A tacker for applying a rotary tack, including a drive shaft coupled to a trigger, wherein operating the trigger causes rotation of the drive shaft, an articulated applicator arm pivotally connected to the drive shaft at a pivot, the articulated applicator arm including a rotatable output shaft connected to a magazine that holds a rotary tack, and a clutch mechanism which, at initial movement of the trigger, has a first orientation that causes the articulated applicator arm to pivot about the pivot until reaching a stop, and has a second orientation wherein upon continued movement of the trigger, the clutch mechanism permits the drive shaft to rotate the output shaft and cause application of the rotary tack from the magazine.

Mechanically decoupled capstan drive

Abstract: A capstan drive includes a first capstan that moves a device on a carriage and a second capstan that receives a second rotary motion to move the carriage. A first power transmission has a driven shaft coupled to the first capstan, a first drive shaft coaxial with the driven shaft to receive a first rotary motion for driving the device, and a second drive shaft coaxial with the driven shaft. A second power transmission couples the second rotary motion to the second drive shaft. The second power transmission has a drive ratio such that if there is no first rotary motion, a first cable is drawn in by the first capstan at the same rate as a second cable is drawn in by the second capstan in response to the second rotary motion.

Drive mechanism for articulating tacker

Abstract: A tacker for applying a rotary tack, including a drive shaft coupled to a trigger assembly, wherein operating the trigger assembly causes rotation of the drive shaft, a distal portion of the drive shaft passing into an articulated arm that holds rotary tacks, wherein upon operation of the trigger assembly, the drive shaft rotates to cause deployment of the tacks distally out of the articulated arm, and wherein the drive shaft includes a cable on which are located a plurality of axially spaced drive links that transfer rotational motion of the drive shaft to rotation of the tacks.