摘要:
According to one aspect of the disclosure, a control device for a medical ventilator is disclosed. The control device has a user definable medical ventilator protocol and the control device includes means for selecting a plurality of objects from a group of objects, wherein each of the objects are segments of the ventilator protocol, and each of the objects have at least one attribute. Further, the control device includes means for arranging the plurality of objects in a sequence, means for initiating the at least one attribute to define a property for each object in the plurality of objects and a processor unit configured to execute the sequence. The medical control device gives the user flexibility to define and implement a medical ventilator protocol in a faster way than possible today and for different patients and/or ventilator situations.
摘要:
The invention pertains to a method of charging or discharging a capacitive element, preferably a piezoelectric crystal. The invention pertains also to a device which implements charging of a capacitive element according to said method. The device comprises a bipolar buck-boost converter, whereby a capacitive element can be charged with both positive and negative voltages. The discharge of the capacitive element is provided with energy recovery and feedback to the device's power supply.
摘要:
Disclosed is a mechanical amplifier for converting a small motion amplitude to larger. The method comprising using two or more beams (10, 11) which are connected in series at angles to each other. Undesirable movements arising in the structure are absorbed by the structure through torsion. Each beam is a mechanical motion amplifier, and by connecting these in series, the total amplification is the product of the amplification of the comprised beams. A device comprising two or more beams connected together, preferably at an angle of 90 degrees is also disclosed.
摘要:
A pump comprising a membrane element and a pump housing having a chamber with bevelled inner walls. The chamber comprises an open end having a third area. The membrane element has a first area, and comprises a central section with a second area which is surrounded by a periphery section. The central section is thicker than the periphery section. Further, the second area of the central section is smaller than the third area of the open end of the chamber and the membrane element is arrangable over said pump housing forming a sealed chamber, whereby the central section of the membrane element is arranged over the open end, and the central section is protruding away from the chamber.
摘要:
The invention pertains to a device for trimming the thickness of a mechanical body. The trimming is performed by screwing a screw through a threaded hole and having the end of the screw pressing against the centre of a disk element, which by deformation, acts as a lever against an adjacent body. This reduces the influence of the lead of the screw to the transmission determined by the abovementioned lever.
摘要:
A pump comprising a pump housing member (1) having a chamber (21) with inner walls and an open end having a first area (25), the pump housing member (1) comprises an enlarged surface surrounding the open end of the chamber (21). The pump further comprises a second pump housing member (5) and a membrane element (32) with a second area (27). The membrane element (32) has a first central section having a third area (28) with same size as the first area (25) of the open end of the chamber (21). The membrane element (32) is arranged on the pump housing element (1) with the first central section positioned over the open end, forming a sealed chamber. A portion of the membrane element (32) is slidably clamped between the enlarged surface and the second pump housing member (5).
摘要:
A method is described for measuring a flow of gas passing a flow meter device. The device causes a pressure drop when a gas flows through it. The pressure drop across the device is a measure of the gas flow. The device is designed as a gas permeable tube (81) which has a flow channel on the upstream side along the tube designed so as to decrease the cross-section of the channel downstream of the gas permeable tube. This provides for a minimum volume in the channel upstream of the device's pressure-drop- generating component. By combining a gas permeable element with a flow meter element having a variable restriction, an advantageous flow meter with fast response times, and a high dynamic flow range is provided.
摘要:
A system and a method are described for converting a small motion from a piezoelectric actuator to a larger motion in a valve mechanism (118). A piezoelectric actuator (113) is connected in series to a mechanical amplifier (119), a mechanical temperature compensation element (114), a mechanical fine tuning element (115), all acting in the same effective direction as the piezoelectric actuator.
摘要:
The invention pertains to a device and a method for compensating for heat expansion effects in solid materials, and a method for manufacturing the device. The temperature compensation is performed by the device through mechanically working together with the device for which the temperature is to be compensated. The temperature compensation element comprising an enclosed disc (10), which via an inclined link device (13) is connected to a housing (11) whose heat expansion coefficient is different compared to the enclosed disc. Compensation for both negative and positive temperatures can be conducted. The manufacturing method comprising heating up or cooling down the components, achieving a pressure fit when the parts have been assembled and the temperature of the components has been controlled to the intended temperature compensation range.