Arrangements and methods for avoiding spreading of infectious agents and improving electric safety and suction performance of a medical aspirator
AssigneeExcitus Medical AS
InventorsØyvind Tjølsen, Terje Bondhus, Per Reidar Ørke
Life of this patent
Estimating the term…
Abstract
Vacuum pump (18) for a medical aspirator (10), the pump (18) comprising a tubular member (20); a piston (22) slidably arranged within the tubular member (20); a piston rod (24) connected to the piston (22); and a coupling mechanism (36) for detachably and functionally connecting the piston rod (24) to a motor (38) for driving the pump (18), wherein the piston rod (24) is configured to reciprocate linearly during operation of the pump (18).
Claims7
A motor unit for a medical aspirator, the motor unit comprising:
- a motor for driving a vacuum pump;
- at least two batteries, wherein each battery is configured to supply drive current to the motor;
- and
- a relay associated with each battery, wherein each relay is configured to operate between:
- an allowing state for receiving a charge from a mains power supply, and
- a non-allowing state in which the charge from the mains power supply is not allowed;
- wherein the control unit is configured to alternatingly control the relays such that the relay of the battery that currently supplies drive current to the motor adopts the non-allowing state and the relay of each one or more remaining batteries adopt the allowing state so that the motor is never electrically connected to the mains power supply.
An arrangement for inactivating infectious agents in an air stream, such as an air stream within a medical aspirator, the arrangement comprising:
- a channel for guiding an air stream therethrough, the channel being at least partly constituted by a material permeable to ultraviolet light;
- and
- an ultraviolet light source arranged adjacent to the channel configured to expose the air stream within a treating section of the channel to ultraviolet light;
- wherein the channel within the treating section comprises at least two channel segments configured to direct the air stream in different directions.
Dependencies are inferred from the claim text.