摘要:
Ambulatory membrane pump intended for medical use e.g. for infusion purposes, consisting of two main parts: 1) the basic device with motor drive and computer, and 2) the administration set, which is disposable. The arrangement with check valves in both ends of the administration system safeguards that no leakage happens when gravitational forces are acting, due to height differences between fluid bag and needle.
摘要:
A delivery means for delivering liquid containing medicament to a posterior region of the nasal cavity, comprising an elongate tubular member (35; 151) and a nozzle (37; 153) at the free end thereof, which nozzle (37; 153) includes at least one opening (39; 155) through which liquid is in use delivered.
摘要:
The present invention relates to a pump chamber (1) for a pump intended primarily for infusion systems for medical use, said pump chamber comprising walls (21, 28) delimiting said chamber and an inlet (22) and an outlet (23), a part of said walls of said pump chamber being formed by a flexible membrane (40, 90), said membrane being actuatable by a reciprocally movable actuating means (80), thus varying the volume of the pump chamber in accordance with the movements of said actuating means. The membrane (40, 90) has a convex domed shape projecting outwardly from said pump chamber (1) and is made of a resiliently flexible material, the apex of the domed membrane being acted upon by said actuating means, said actuating means having a stroke which may be adjusted to the amount of the dose to be administered. The invention also relates to a valve for a pump chamber.
摘要:
This invention relates to a self-closing apparatus which enables flowable substance present in a container to be dispensed therefrom. The apparatus includes a flexible diaphragm having an outlet aperture, and a stud which is fixed in relation to the diaphragm and which is located inwardly thereof, wherein the stud so coacts with the outlet aperture that the diaphragm in its normal position will rest with its outlet aperture resiliently in abutment with the stud and therewith close the container, and so that upon application of a pressure difference across the diaphragm to dispense substance from the container, the diaphragm will resiliently move away from the stud and therewith expose the outlet aperture. The diaphragm includes at least two deformation zones which are spaced at different distances from the outlet aperture, wherein these deformation zones extend around the outlet aperture, and are disposed as concentric circles having a center in the outlet aperture, and have the form of folds which include weakenings in the diaphragm thickness, thereby enabling the remainder of the diaphragm to have an uneven thickness without detrimentally affecting the mutual coaction between stud and diaphragm as the closure apparatus opens and closes.
摘要:
A liquid dispensing valve including a flexible length of tubing. The tubing is bent along two parallel lines transverse to the axis of the tubing. The tubing is held in an actuator which, in a first position folds the tubing along the two parallel lines to close the tubing to the passage of fluid. In a second position the tubing is partially straightened whereby fluid can pass through the tubing.
摘要:
A self-closing closure for use with a container, the closure opening automatically upon the application of opening pressure to the contents of the container and being self-closing upon the release of pressure. A pair of resilient discs or diaphragms are employed which in the closed position have their convex surfaces facing each other. One of these discs carries the valve opening and the other disc supports the valve stem which projects into and seals the opening in the closed position of the closure. Upon the application of opening pressure to the container contents, the resilient discs move axially of the closure and the convex surfaces change to concave surfaces. The valve stem is drawn away from the opening. The large axial movement of the discs is attained with minimal pressure yet secures a large opening area for dispensing the contents.
摘要:
A device and a method for spraying a certain quantity of fluid. The device includes a casing with a cavity for accommodating a liquid reservoir and a pump which delivers a specific quantity fluid upon activation. The device further includes a nozzle through which the flow of fluid passes in the form of spray droplets together with an activating device which acts upon the base of the reservoir due to the application of opposing forces to the casing, basically at right angles to the pumping movement of the device.
摘要:
Device for registration of temperature over an area by means of thermochromatic materials, which includes one, two or several layers (1, 3) with thermochromatical material, and one or several surrounding heat storing plastic layers (4, 6) that extend the reading time with maintained heat picture. In the case with several thermochromatic layers these preferably are of different termocromatical materials reacting at different temperatures and so chosen and so arranged that the termocromatic materials together constitute a scale of temperature areas. By means of a template the colors in the termocromatic layers can be interpreted to temperatures or temperature intervals and be noted.
摘要:
A moisture-heat exchange arrangement which is intended for connection to a patient to humidify and heat the air inhaled by the patient, wherein the arrangement includes a moisture-heat exchanger unit (5) and a humidifier means (11, 12) that connects with the unit (5) to increase the humidity of the inhalation air. The humidifying means includes a casing (3) which is connected with the moisture-heat exchanger unit (5) and which has a first opening (9) that communicates with the moisture-heat exchanger unit and an opposing opening (6) that communicates with the patient. The inner surface of the casing has provided thereon a water-absorbing and/or water-vapour permeable material (11) which delivers moisture to the air inhaled by the patient.
摘要:
A device for dispensing a flowable substance, which includes a rigid open channel or basin-shaped first main part having a dispensing channel with a dispensing opening, and a basin- or channel-like second main part which is comprised of a resilient material and has a shape complementary to the first main part, wherein the first main part and the second main part are joined together to form a closed dispensing container, and wherein the second main part has an end wall that includes a closure part which is complementary to the dispensing channel of the first main part and which lies resiliently against the dispensing opening. Pressure applied to the upper part of the end wall causes it to pivot on pivot points causing the closure part to swing upwardly and open the dispensing opening to permit discharge of the substance.