A61M5/1456

Double-row rolling-element bearing unit having preloading element
11473619 · 2022-10-18 · ·

A double-row rolling-element bearing unit of a medical pump, preferably syringe pump, has a bearing core forming a first inner running surface for first rolling elements, which first inner running surface faces in an axial direction, and forms a second inner running surface for second rolling elements, which second inner running surface is arranged oppositely to the first inner running surface in the axial direction. The pump has a bearing bush, which can be mounted on a housing portion and forms a first outer running surface, which lies opposite the first inner running surface, and the pump has a bearing pan, which forms a second outer running surface, which lies opposite the second inner running surface. At least one preloading element couples the bearing pan to the bearing bush with a defined preload to join the double-row rolling-element bearing unit as a unit.

CONNECTION AND ALIGNMENT DETECTION SYSTEMS AND METHODS
20230069487 · 2023-03-02 ·

A medical device includes a first housing portion (FHP) and a second housing portion (SHP) configured to be to be movable relative to each other from a first position to operatively engage at a second position to couple at least one of a drive device and a needle-inserting device supported by one of the FHP and the SHP to a reservoir supported by the other of the FHP and the SHP. Electronic circuitry configured to detect at least one of a first magnetic interaction between a magnet and at least one of a first magnetically attractive material and a first magnet-responsive device and a second magnetic interaction between the magnet and at least one of a second magnetically attractive material and a second magnet-responsive device, and to provide a signal or a change in state in response to detecting at least one of the interactions.

DEVICE FOR SUBCUTANEOUS DELIVERY OF FLUID MEDICAMENT

An improved device delivers a fluid medicament to the subcutaneous tissue of a user. The device is better suited for patients with Parkinson's Disease and other central nervous system disorders, than conventional infusion devices. The device can include a reusable part including a drive component (e.g., motor) and control electronics and a disposable part including a medicament reservoir. Medicament can be evacuated from the medicament reservoir by a plunger assembly that includes a plunger attached to a lead screw that is rotated by a nut, all within the disposable part. The device can be fluidically coupled with the tissue via a flexible cannula. Various embodiments relate to an improved cannula insertion mechanism that delivers the cannula under a force applied by a spring. Various embodiments relate to improved filling of the device, for example, using a vial adapter and an automated filling station.

CELLULAR THERAPY INFUSION DEVICES, SYSTEMS, AND METHODS FOR USE
20230063936 · 2023-03-02 ·

Cellular therapy infusion devices for the delivery of media including cellular therapies to a patient's tissue, cells, and/or blood include a barrel, a plunger that fits within the barrel, a syringe shaft, and a pressure relief system configured to achieve and/or maintain a desired level of pressure and/or force within the device so that cellular behavior and/or viability is not adversely impacted by the mechanical forces exerted thereon via depressing the plunger into the barrel so the cellular therapy media may be pushed from the barrel into a patient delivery device for administration to the patient. The cellular therapy infusion devices may cooperate with and/or fit into cellular therapy infusion systems designed to create and/or maintain preferred conditions for the cellular therapy media stored in the barrel and automatically administer the cellular therapy media from the cellular therapy infusion device to the patient in a steady, regulated, and/or preferred manner.

MEDICAL MODULE INCLUDING AUTOMATED DOSE-RESPONSE RECORD SYSTEM

An automated dose-response record system including a module for housing waste-heat producing electronic and electromechanical medical equipment including at least one physiologic monitor, and including a system to measure, temporally correlate and record dose and response events.

Infusion pump assembly

An 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.

APPARATUS AND METHODS FOR DELIVERY OF CELL SUSPENSION

Apparatus and methods for monitoring and delivering a cell suspension. In certain examples, the apparatus comprises a reservoir containing the cell suspension, a cannula, and a liquid transfer mechanism configured to transfer the cell suspension from the reservoir to the cannula. The apparatus can also comprise an agitation mechanism to agitate the cell suspension, and a monitoring device to quantify a concentration of cells transferred from the reservoir to the cannula.

MULTIPLE USE COMPUTERIZED INJECTOR
20230070400 · 2023-03-09 · ·

A computer-controlled injector, including a housing arranged along a longitudinal axis and configured to receive a cassette assembly, containing a medicament cartridge; the housing includes a cassette assembly receiving volume and a cassette assembly insertion and removal opening communicating with the cassette assembly receiving volume; at least one locking element for locking the cassette assembly with respect to the housing upon axial insertion of the cassette assembly into the housing; and an injection drive mechanism including a computer-controlled motor for driving a piston, forming part of the medicament cartridge, for injecting a medicament, the computer-controlled motor also being operative for operating the at least one locking element for releasing the cassette assembly from the housing.

PRESSURE MODULATED MOTOR TORQUE FOR INFUSION PUMP

An infusion pump can be configured to modulate a drive motor based on perceived infusion pressure requirements for quieter, more energy-efficient operation of the drive motor. The infusion pump can include an electrical motor having a variable output torque based on the electrical current input, a plunger head sensor configured to detect a force between a plunger driver and a plunger of a medicament container, and a control module configured to regulate the electrical current input to the electrical motor based on the detected force between the plunger driver and the plunger medicament container. The electrical current input for such an infusion pump can be incrementally reduced according to defined magnitudes of detected force.

Medical pump, method of controlling medical pump, and medical pump system
11617830 · 2023-04-04 · ·

A medical pump includes a reader configured to read drug identification information, a storage unit that stores the drug identification information read by the reader, a notification unit, and a control unit, in which when the reader reads drug identification information anew while the drug identification information is stored in the storage unit, the control unit compares the drug identification information being stored in the storage unit with the drug identification information read anew by the reader, and when the drug identification information being stored in the storage unit does not match the drug identification information read anew by the reader, the control unit causes the notification unit to notify of non-matching between drugs.