A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.

The present disclosure provides devices for implanting tissue or other substances within the body. The devices can include a feedback mechanism, which can assist a surgeon in implanting the tissue or other substances by preventing excess shear force or pressure on the tissue or substance to be implanted.

A cartridge adapter includes: a cartridge holder having a space that can accommodate therein a drug cartridge, the drug cartridge including a cylinder having a tubular internal space extending in a longitudinal direction, a gasket supported in the internal space so as to be movable in the longitudinal direction, and a drug held in the internal space; a piston that moves the gasket in the longitudinal direction in the internal space of the cylinder; a piston guide that movably supports the piston and connected to the cartridge holder; and a piston driving mechanism that drives the piston in the longitudinal direction.

An infusion device (1) for administering a medical fluid to a patient (P) comprises a pumping mechanism (11) for exerting a force onto a delivery set (2, 3) for delivering a medical fluid from the delivery set towards a patient (P), a sensor device (14) for measuring the force exerted on the delivery set (2, 3) by the pumping mechanism (11), the sensor device (14) being constituted to output a sensor signal indicative of the force exerted onto the delivery set (2, 3), and a processor device (15) for controlling operation of the infusion device (1). Herein, the processor device (15) is constituted to perform a diagnosis routine during which a sensor signal of the sensor device (14) is obtained and compared to an expected sensor signal, to allow for detecting a drift in the sensor signal of the sensor device (14).

An adapter for releasably attaching a syringe to an injector. The adapter comprises a mounting mechanism positioned at a rear end of the adapter to mount the adapter in a desired position relative to a front wall of the injector; and a syringe carrier section adapted to seat at least a portion of the syringe. The syringe carrier section defines a first opening on a top thereof to allow placement of the syringe therein from the top and a second opening in a rear section thereof to allow the drive member of the injector to communicate forward force to the plunger. A cover portion extends over a rearward end of the first opening and has a first end configured to abut the flange of the syringe when the syringe is positioned within the syringe carrier section.

A syringe pump can be operated to produce fluid flow from a syringe installed therein. Features of the pump can produce a desired rapid commencement of flow followed by smooth delivery uninterrupted by stiction-induced slowing and acceleration. A stiff drivetrain can facilitate detection of excessive forces indicative of friction at a stopper-wall interface. The motor drive, gearing, and control parameters can enable customized acceleration patterns to determine optimal initial stage advancement to provide fluid delivery. These patterns can minimize or eliminate the delay in commencement of flow by overcoming both mechanical slack remaining and syringe stopper slack. To avoid flow irregularities produced by stiction forces in the stopper further, a mechanical vibration can be provided to the syringe and/or barrel to introduce movement of the stopper-wall interface, reducing the creation of high static friction coefficients.

Syringe pumps are described herein. A syringe pump is disclosed comprising a syringe pump body, a flange clamp and a sensing switch. The syringe pump body defining a syringe body recess and a syringe plunger recess, wherein the syringe body recess and the syringe plunger recess are configured to cooperatively receive a syringe. The flange clamp is coupled to a mating surface of the syringe pump body disposed between the syringe body recess and the syringe plunger recess, wherein the flange clamp is configured to be spaced apart from the mating surface to receive a syringe flange of the syringe. The sensing switch extends through the mating surface, wherein the sensing switch is configured to be in a closed state when the flange clamp is in contact with the sensing switch and in an open state when the flange clamp is spaced apart from the sensing switch.

A syringe pump according to an embodiment includes a lead screw and a slider. The slider has an engagement part that engages with the lead screw and a slider cover with an internal space that houses the engagement part and is formed therein and an external surface that contacts a plunger of a syringe, and slides to move in a predetermined direction of travel with rotation of the lead screw to push the plunger. Then, the slider cover has a contact part that is provided in the internal space and contacts, when the slider pushes the plunger, a location that is close to the engagement part where the location is provided on a side of the direction of travel.

A syringe includes a body and a plunger movably disposed within the body. The syringe may be used with an injector including a drive member. The drive member preferably includes at least one pin adapted to form a retractable abutting connection with an interior of a plunger to enable the drive member to retract the plunger with the body of the syringe.

A syringe pump is provided. The syringe pump includes a pump body, a control system, a transmission mechanism, and a propulsion mechanism. The transmission mechanism includes a bracket, a propulsion driving motor, a screw rod, a sliding seat, a half nut, and a clutch driving assembly. The propulsion driving motor configured to drive the screw rod to rotate, the clutch driving assembly is disposed on the sliding seat, and configured to drive the half nut and the screw rod to be engaged and disengaged from each other. The propulsion mechanism includes a connecting rod, a pushing block, a pressure sensing assembly, and a clutch switch. The pressure sensing assembly is disposed on the pushing block and configured to detect pressure of a piston rod of a syringe. The clutch switch is disposed on the pushing block and electrically connected to the clutch driving assembly.