摘要:
An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
摘要:
A syringe pump which includes a pusher block is slidably mounted on bearings on one or more guide rails. The pusher block is advanced or retracted by a lead screw having an axis which is offset from the axis of the one or more guide rails which are supported at their respective ends by support blocks, wherein forward and/or trailing sides of the pusher block bearings are extended, and wherein the guide rail support blocks include recesses for accommodating the extended ends of the pusher block slide bearings. In another embodiment, the syringe pump includes quick connect-disconnect fixtures for loading and unloading syringes. Other mechanical, and programmable improvements are described in the specification.
摘要:
A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient-user and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient-user or with infusion medium are supported by the disposable housing portion, while the durable housing portion supports other components such as electronics and a drive device. A reservoir is supported by the disposable housing portion and has a moveable plunger that operatively couples to the drive device, when the disposable and durable housing portions are engaged.
摘要:
An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
摘要:
An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
摘要:
A medicament delivery device (1) comprises a housing (2) for holding a medicament cartridge (9), a drive (18, 32) and a drive control means (46, 52). The medicament cartridge (9) has a medicament outlet and a bung (20) able to be driven via a piston rod (12, 14) driven by the drive force of the drive (18, 32) and controlled by the drive control means (46, 52). Additionally, the medicament delivery device (1) comprises a restraining means (38) for applying a restraining force to the piston rod (12, 14), in a direction opposite to the drive force. By varying the restraining force by the drive control means (46, 52) the movement of the bung (20) along the medicament cartridge can be controlled.
摘要:
A device for delivering fluid into the body is provided. The device may comprise a reservoir including at least one wall for retaining fluid and a plunger (400), wherein the plunger is articulated with a drive screw (300) having a distal end (304) that rotates within the plunger and displaces the plunger in a linear direction. The device may further comprise a reusable part having a motor, one or more gears and a receiving portion, and also a disposable part having a reservoir, a plunger and a drive screw having a proximal end capable of engaging with the receiving portion upon connecting the reusable part and the disposable part
摘要:
An injection system (200) including an injection chamber (202) and an injectate reservoir (204) that is removably attached to the injection chamber via an intermediate connector (206). The connector extends at a first end from the chamber and terminates at an opposite end with a fitting, such as a luer fitting, to which the injectate reservoir can be attached. The connector can be a relatively flexible component, such as a flexible tube, which is capable of absorbing the energy of an impact or other manipulation of the system to prevent or minimize the possibility of premature disconnection of the reservoir from the system.
摘要:
A syringe pump includes: a syringe mounting part on which to mount a syringe outer cylinder of a syringe; a clamp which is pulled downward by an elastic member, contacts an upper surface of the mounted syringe outer cylinder and thereby fix the syringe outer cylinder; a slider which holds a plunger flange of a plunger of the mounted syringe by levers and which pushes out the plunger; and a display or monitor of which the display is controlled by the computer. Regarding an operation of mounting the syringe outer cylinder onto the syringe mounting part, an operation of setting the plunger flange into the slider, and an operation of fixing the syringe outer cylinder with the clamp, the display or monitor alternately displays the respective states before and after the operations at a predetermined interval.
摘要:
A fluid delivery device is provided for delivering fluid to a target site such as an intervertebral disc during discography. The fluid delivery device includes pressure and volume sensors to determine the pressure and the volume of the fluid delivered to the intervertebral disc. The fluid delivery device is hand-held during use and includes a syringe assembly having a plunger with threads that enables controlled discharge of the fluid from the fluid delivery device by rotating the plunger in a housing of the fluid delivery device. The fluid delivery device may also include a communication module to wirelessly transfer data to an external device outside of a sterile field, while the fluid delivery device is in the sterile field. The fluid delivery device may also include a physiological sensor to monitor involuntary pain responses based on changing physiological parameters such as increases in body temperature or blood pressure.