摘要:
Provided is a pressure detection device including: a pressure detection unit; and a flow channel unit provided with a flow channel and a pressure receiving portion. The pressure detection unit includes a pressure sensor including a diaphragm, and a pressure transmission portion which is disposed in a state where one end of the pressure transmission portion is in contact with the diaphragm and the other end thereof is in contact with the diaphragm, and transmits a pressure of a fluid received by the diaphragm to the diaphragm. The pressure transmission portion is disposed in a state where the diaphragm is displaced toward the flow channel and an urging force directed from the diaphragm to the diaphragm is received.
摘要:
A fluid monitoring assembly includes a segment of tubing having a wall defining a lumen through which the fluid passes and a sensor at least partially embedded within a wall of the tubing. The assembly includes a housing having first and second portions connected to one another at a hinge, the housing defining an interior portion configured to hold the segment of tubing and the sensor. The housing may be opened and closed as needed using a fastener.
摘要:
The disclosure is directed to a pressure sensor of an implantable medical device. The pressure sensor may utilize detect fluid pressure based on a changing capacitance between two capacitive elements. The pressure sensor may define at least a portion of a fluid enclosure of the IMD. In one example, the pressure sensor has a self-aligning housing shape that occludes an opening in the pump bulkhead of the IMD. An operative surface of the pressure and the portion of the fluid enclosure may be formed of a corrosion resistant and/or biocompatible material. A first capacitive element of the pressure sensor may be a metal alloy diaphragm that deflects in response to external fluid pressure. A second capacitive element of the pressure sensor may be a metal coating on a rigid insulator sealed from the fluid by the diaphragm and a housing of the sensor.
摘要:
A pressure detector includes a passage casing, a fixing body, a sensing member, a sealing member, and a power supply member. The passage casing and the fixing body form a receiving space where the sensing member is disposed in. The sealing member is filled into the rest of the receiving space and separates the sensing member from the fixing body, and prevents a fluid to be measured coming from the chamber from leaking to outside space. The circuit board of the sensing member is protected from contacting the fluid to be measured directly. Thus, the accuracy of measuring pressure is improved, and the lifetime of the pressure detector is lengthened.
摘要:
A fluid monitoring assembly includes a segment of tubing having a wall defining a lumen through which the fluid passes and a sensor at least partially embedded within a wall of the tubing. The assembly includes a housing having first and second portions connected to one another at a hinge, the housing defining an interior portion configured to hold the segment of tubing and the sensor. The housing may be opened and closed as needed using a fastener.
摘要:
The present invention provides a fluid measurement sensor attachment structure in which a fluid measurement sensor is attached to a branch pipe among three or more branch pipes branched from a pipe, thereby measuring properties of a fluid flowing through a flow path that is formed by remaining branch pipes, comprising a sleeve that can accommodate the fluid measurement sensor, wherein the sleeve is a member in a shape of a tumbler including a circumferential wall that is substantially cylindrical and a protective wall that is disposed at one end of the circumferential wall and that does not disturb a function of the sensor, a seal lip is disposed on the circumferential wall near the protective wall, and the sleeve is inserted into the branch pipe such that the protective wall is positioned near a base end of the branch pipes.
摘要:
A fluid container for a medical fluid dispensing device, comprises a rigid body (3) for delimiting with the inside part of its wall a volume of the medical fluid, and a membrane (5) that covers at least an opening of the rigid body thereby creating a fluid tight lid, the opening corresponding to a measurement area, and the membrane further covers a portion of an outside part of the rigid body's wall. The membrane comprises a flexible measurement part (11) corresponding to the opening of the rigid body, an attachment part (13) that is fixed to the rigid body, and a second part (12) that connects the flexible measurement part to the attachment part, and which comprises a rigid part (14), an upper part of which is connected to the flexible measurement part, and the rigid part further comprising a sealing surface (18), and a deformable part (15) which connects the rigid part to the attachment part. The fluid container further comprises a first gap (17) located between the rigid part and the rigid body, which is dimensioned to receive at least a part of the rigid part in a case when a force is applied onto the sealing surface and causes the deformable part to deform.
摘要:
A sensor including a buffer material layer configured to at least partially deflect when a force or pressure is imparted on the buffer material layer; and an electroactive polymer (EAP) cartridge in operative contact with the buffer material layer, wherein the EAP cartridge is configured to generate an output signal that corresponds to an amount of strain imparted on the EAP cartridge. The EAP cartridge may be used in a variety of sensing applications including as a pressure sensor integrated into a fluid connector. One aspect of the invention provides for selection of a buffer material layer based upon a desired pressure range.
摘要:
A fluid conduit element having a measurement apparatus receptacle is configured to receive a sensor unit wherein there is an insert sleeve which reaches through a receptacle gap designed in a carrier base and connects a flow channel to the sensor unit. The insert sleeve is sealed against the measurement apparatus receptacle by a sealing unit, The design is characterized by a relatively simply and operationally securely effected assembly.
摘要:
A pressure monitoring system and method for aseptically measuring the pressure of a fluid. A port communicates with a fluid cavity. A flexible barrier, which may be made from a thermoplastic elastomeric material, is integrally bonded to the port, sealing the port. A pressure gauge is coupled to the port over the barrier. Pressure of the fluid within the fluid cavity is measured by the pressure gauge via the barrier.