Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
  • A61B5/021—Measuring pressure in heart or blood vessels
  • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
  • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
  • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
  • A61B5/6866—Extracorporeal blood circuits, e.g. dialysis circuits
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
  • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
  • A61M1/3621—Extra-corporeal blood circuits
  • A61M1/3639—Blood pressure control, pressure transducers specially adapted therefor
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/0007—Fluidic connecting means
  • G01L19/0023—Fluidic connecting means for flowthrough systems having a flexible pressure transmitting element
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
  • A61B2560/02—Operational features
  • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
  • A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
  • A61B2562/225—Connectors or couplings
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
  • A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
  • A61B5/021—Measuring pressure in heart or blood vessels
  • A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
  • A61B5/02156—Calibration means
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/33—Controlling, regulating or measuring
  • A61M2205/332—Force measuring means
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/33—Controlling, regulating or measuring
  • A61M2205/3368—Temperature
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/70—General characteristics of the apparatus with testing or calibration facilities

Definitions

• Adaptation device for coupling at least one sensor to a hose jacket wall of a hose for fluid measurement and sensor device with such an adaptation device
• the invention relates to an adaptation device for coupling at least one sensor to a hose jacket wall of a hose for measuring a property of a fluid that is conducted through the hose. Furthermore, the invention relates to a sensor device with such an adaptation device.
• a sensor device for measuring a property of a fluid guided through a hose is known from EP 3 142724 BL Furthermore, for example, pressure sensors are known which can in principle be used in the context of such a fluid measurement, for example the sensor type "NovaSensor NPC-100". (see data sheet 04/2018).
• DE 102008 030 802 A1 discloses a sensor mount for attaching a sensor to a hose.
• DE 202020 106224 Ul discloses a sensor system.
• the adaptation device can be made entirely of plastic, e.g. B. made of silicone.
• the adaptation device can be made in one piece.
• the adaptation device can be designed in such a way that the at least one sensor is held by gluing and/or welding.
• the adaptation device can be designed in such a way that the adapter sealing area is formed by adhesive material and/or by welding. Shrinkage of such an adhesive material can be used to generate and/or improve a sealing effect.
• the mounting structure has proven itself to securely hold the adaptation device on a sensor housing.
• the mounting structure has several mounting rails. These mounting bars are clamped between parts and/or between components of the sensor housing.
• An adaptable design of the base body of the adaptation device according to claim 2 increases the possible uses of the adaptation device.
• the adapter device can then be used with hoses of different hose diameters.
• a basic body design with a soft component and a hard component according to claim 3 has proven itself to increase the flexibility of use.
• the soft plastic component can be used for the adaptable design of the base body of the adaptation device and/or for sealing against the hose jacket wall and/or against at least one housing part.
• Adaptation recesses according to claim 5 also enable the main body of the adaptation device to be adapted to different hose diameters. In this case, a hard/soft component design of the main body is not required.
• the adjustment Ausneh rules can be designed as wedge-shaped recesses. From the recesses can taper radially outwards.
• Versions of the adjustment recesses according to claim 6 enable an adjustment to the hose jacket wall.
• a hose circumference adjustment and/or an adjustment to different curvatures of a hose guide can be made possible here.
• a positioning elevation according to claim 7 allows a secure, precise positioning, in particular of the adapter through-opening relative to the through-opening of the hose jacket wall.
• the adaptation device can have several such positioning elevations.
• the at least one positioning elevation can be designed as a positioning pin.
• the least one positioning elevation can be designed as a positioning sleeve, which in particular also specifies the adapter passage opening. If there are several positioning elevations of the adaptation device, the hose jacket wall has corresponding positioning recesses that are complementary thereto.
• a force measuring structure allows monitoring of a mechanical stress, in particular a deformation of the Body of the adaptation device is exposed. This can be used for calibration and/or correction purposes or also for warning purposes if, in particular, a permissible mechanical stress is exceeded due to excessive hose deflection, for example. Measurement errors and/or measurement drifts of the at least one sensor can thus be recognized and possibly compensated for.
• At least one additional sensor mount enables the use of multiple sensors with the adaptation device.
• the additional sensor mount does not have to have access to the adapter through-opening.
• the sensor mounts can be designed in such a way that several sensors, which are carried by a common circuit board, are received by the adaptation device.
• the sensor receptacle can be so large that an electronic unit for controlling the at least one sensor can also be accommodated by the adaptation device, in particular a processor, for example a microcontroller.
• a connector receptacle according to claim 10 simplifies a connection of the at least one sensor to an external component, for example to a control/regulation unit for measurement control.
• a sensor passage opening according to claim 11 enables, for example, good thermal contact between a temperature sensor and the fluid carried in the hose and/or to the hose wall.
• the advantages of a sensor device according to claim 12 correspond to those that have already been explained above with reference to the adaptation device.
• the at least one sensor can be a Pressure sensor, a temperature sensor, a flow sensor or an optical sensor. Several such sensors can also be accommodated in any combination in corresponding receptacles of the adaptation device.
• the sensor device is particularly suitable for an ECMO application.
• a pressure sensor is used as the sensor of the sensor device, it can be designed in such a way that it can measure both a vacuum and an overpressure.
• the sensor can cover a pressure measurement range between -200 mmHg and 700 mmHg. Depending on the design of the pressure sensor, this pressure measurement range can also extend between -50 mmHg and 300 mmHg.
• the adaptation device can contain structures for accommodating further compo nents such as optical windows or membrane structures.
• a design of the sensor device according to claim 13 simplifies sealing on the one hand of an interior space of the sensor housing to the outside and/or of the adaptation device around the adapter passage opening against the hose jacket wall.
• Fig. 1 in perspective a sensor device with a to a
• FIG. 2 shows a view from the direction II in FIG. 1
• FIG. 3 shows a view from the direction III in FIG. 1;
• FIG. 4 shows a longitudinal section through this sensor device and a hose section of the hose according to line IV-IV in FIG. 3;
• Fig. 5 shows a cross-section through the sensor device and the hose according to line V-V in Fig. 4;
• FIG. 6 shows a perspective view corresponding to FIG. 1 with the housing cover removed so that details of the adaptation device and the sensor unit become visible;
• FIG. 7 is a perspective view of the assembly of FIG. 6.
• FIG. 8 shows the assembly in a view similar to FIG. 7, the sensors of the sensor unit also being omitted;
• FIG. 9 shows a view similar to FIG. 8, wherein only a lower half-shell of the housing is provided by the sensor device;
• 10 shows the housing cover of the sensor device in perspective
• 11 is a perspective view of the adaptation device, viewed obliquely from below, that is to say from the perspective of the hose;
• FIG 13 shows the lower housing half-shell of the sensor device.
• FIG. 1 to 5 show overall views or sectional views of a sensor device 1 with an adaptation device 1a (cf. e.g. FIG. 2) for coupling at least one sensor to a hose jacket wall 2 of a hose 3, which is shown in sections in the drawing is.
• the hose 3 is a plastic hose, in particular for a medical application.
• the tube 3 can be an ECC tube (Extra Corporal Circulation, circulation outside the body).
• the at least one sensor is part of a sensor unit for measuring a property of a fluid that is passed through a lumen 4 of the hose 3 .
• the adaptation device 1a carries a pressure sensor 5 and a temperature sensor 6 (cf. eg FIG. 4). These sensors 5, 6 are part of the sensor unit of the adaptation device 1a. With regard to the sensor 6, the observer is faced, for example in FIG.
• the temperature sensor can be an SMD component or wired.
• the sensor device 1 has a multi-part sensor housing 7 with a housing cover 8 and a lower housing part 9 designed as a half-shell Adaptation device 1a and, on the other hand, an axial hose section 10 of hose 3.
• the sensor unit can also include a controller or processor, which can have a data memory (not shown in the figures).
• the connector 1 on the one hand and the temperature sensor 6 on the other hand are soldered to both sides of a circuit board 12 of the sensor unit, with the temperature sensor 6 facing the hose jacket wall 2 in the sensor housing 7 .
• the connector 11 is used for contacting the supply line.
• Circuit board 12 is in contact with pressure sensor 5 in particular via wires, which is not shown in the drawing.
• the pressure sensor 5 can be in contact with the connector 11 .
• the pressure sensor 5, the temperature sensor and the connector 11 can be positioned on a common circuit board.
• One of the circuit boards which is assigned to one of the sensors 5, 6, or the common circuit board, at least one other electronic cal component, z. B. have a controller, in particular a Mikrocon troller. The controller can then be in electrical contact with the sensors 5 or 6 and with the connector 11 .
• the sensors 5, 6 can also be arranged on a common circuit board.
• the adaptation device 1a has a connector receptacle 13 (see, for example, FIG. 7) for receiving a mechanical connector 13a, for example a cable kink protection (see, for example, FIG. 6).
• a mechanical connector 13a for example a cable kink protection (see, for example, FIG. 6).
• the Konnektorholznah me 13 record an electrical connector (see FIG. 11) for the electrical connection of the sensor unit with the sensors 6, 7 and an external component, which is, for example, a control unit for the Can act sensor device 1 and an electrical supply component.
• the electrical connector 11 can therefore provide an energy supply on the one hand and a data connection between the sensor unit and the external component on the other and can be positioned on the board or in the connector receptacle 13 .
• Such an electrical connector of the type of electrical connector 11 can be designed as a connector plug.
• the electrical connector can be attached directly to a housing wall, in particular of the housing cover 8, for example on the front side where the cable kink protector 13a is shown in FIG.
• the electrical connector can be in the form of a D-Sub connector, for example a 9-pin connector.
• the electrical connector can also be designed as a corresponding socket.
• a controller, for example a microcontroller, of the adaptation device 1a can have a digital, serial interface.
• the adaptation device 1a has an adapter passage opening 14 (cf. e.g. Figs. 4, 5 and 8) for providing a fluid connection via a hose casing wall passage opening 15 (cf. e.g. Fig. 9) between the hose lumen 4 and the Pressure sensor 5 of the sensor unit of the adaptation device la.
• the adaptation device 1a also has a sensor receptacle 16 for accommodating the pressure sensor 5 in the area of the adapter passage opening 14.
• the adaptation device 1a has an adapter sealing area 17 running around the adapter passage opening 14 for sealing the adaptation device 1a against the hose jacket wall 2 in the peripheral area. around the adapter passage opening 14.
• the latter is formed by a flat contact of the adaptation device 1a on the hose jacket wall 2 in the area around the hose jacket wall passage opening 15 and around the adapter passage opening 14 (cf. FIG. 11).
• the adaptation device la also has a further adapter housing seal 18 surrounding the adapter through-opening 14 and facing the housing cover 8 for sealing the adapter through-opening 14 circumferentially against the housing cover 8. Fluid can thus flow from the lumen 4 via the hose casing wall - Do not test through opening 15 in an area surrounding the sensor housing 7.
• the adapter housing seal 18 can be a seal, in particular an O-ring seal, a sealing strip or an adhesive seam.
• the adapter sealing area 17 can be formed by a plastic soft component of the adaptation device la, which has a smaller shore hardness in a region of the adaptation device la that is radially adjacent to the hose jacket wall 2 than other hard plastic components of the adaptation device la.
• a transition region between such a plastic soft component 19 and a radially outer plastic hard component 20 is indicated by dashed lines at 21 for a first, corresponding 2K design of the adaptation device la.
• the plastic soft component 19 can have a hardness rating A in the range between 30 and 60, for example in the range between 50 and 60 or else in the range between 30 and 50.
• Material for the plastic soft component 19 can be silicone.
• silicone As an alternative to silicone, another material for the soft plastic component 19 with a corresponding shore hardness is also possible.
• the hard plastic component 20 can have a Shore A hardness in the range between 60 and 98, in particular in the range between 80 and 98 or else between 60 and 80.
• the sensor housing 7 and/or the hard plastic component 20 can be made of silicone, PUR (polyurethane) or ABS (acrylonitrile butadiene styrene copolymer).
• the plastic design of the adaptation device 1a in the area adjacent to the hose 3 can be such that a base body 22 of the adaptation device 1a is designed to be adaptable to different outer diameters of the hose jacket wall of the hose used in each case.
• the plastic soft component 19 can be designed as a whole of the hose jacket wall 2 fitting half-shell section of the base body 22, which is formed on a supporting section of the base body 22 for the sen sorhyroid, which is designed as the plastic hard component.
• the base body 22 of the adaptation device la can have adjustment recesses 23 in a region radially adjacent to the hose jacket wall 2, which are indicated in three places in FIG.
• the adjustment recesses 23 extend back in the longitudinal direction of the base body 22, ie parallel to Hose axis and have a wedge-shaped cross-section, which tapers in the radial direction of the hose 3 outwards to a recess bottom that forms a roof edge of the wedge. Circumferential adjustment of the base body 22 to the hose jacket wall 2 can be made possible via these adjustment recesses 23 .
• the adjustment Ausneh rules 23 are distributed in the circumferential direction around the hose 3 in the basic body.
• the base body 22 of the adaptation device 1a can also have corresponding adaptation recesses 24 distributed in the axial longitudinal direction, as indicated at three points in FIG. This further Anpas sungs recesses 24 run in the circumferential direction around the hose longitudinal axis L and also have a wedge-shaped cross-section that tapers radially outwards.
• the main body 22 of the adaptation device 1a has at least one positioning elevation 25 for specifying a position of the adaptation device 1a relative to the hose casing wall 2 by interacting with at least one positioning recess in the hose casing wall 2, which is designed to complement the positioning elevation 25.
• This positioning is such that the adapter passage opening 14 is aligned with the hose jacket wall passage opening 15 .
• the positioning recess of the hose jacket wall 2 is formed by the passage opening 15 of the hose jacket wall.
• the positioning survey 25 is formed as an integral part of the base body 22 and protrudes over the base body 22 by the positioning sleeve of the adaptation device la, which at the same time specifies the adapter passage opening 14 .
• positioning elevations can also be formed, for example positioning pins, which move into complementary positioning recesses in the hose casing wall 2 as soon as the adaptation device la is correctly positioned in relation to the hose casing wall 2 in the axial direction and in the circumferential direction is reached, so that the adapter through-opening 14 is flush with the through-opening 15 of the hose jacket wall.
• Such positioning elevations/positioning recesses can also have a sealing function of the adaptation device 1a against the wall 2 of the hose jacket.
• the adaptation device la can also have at least one force measuring structure 26 (cf. FIG. 4).
• the force-measuring structure 26 is positioned in the area where the base body 22 rests on the hose casing wall 2 and is used to measure a stress to which the base body 22 of the adaptation device 1a is exposed during its use in the fluid property measurement. Measurement data from the force-measuring structure 26 can be used to calibrate and/or correct measurement data from the pressure sensor 5 .
• the force measuring structure 26 can be designed as a strain gauge.
• the force measuring structure 26 is in a manner not shown with the Pro processor 11 or the electrical connector 13a or one of the other sensors 5, 6 in signal connection.
• the adaptation device 1a has another sensor receptacle 27 (cf. FIG. 8) for accommodating the temperature sensor 6.
• the sensor receptacle 27 On the bottom side, the sensor receptacle 27 has a sensor passage opening 28 (cf. For example, Fig. 4 and 11), the wall to the hose jacket 2 opens out.
• the sensor passage opening 28 serves to ensure good thermal contact between the temperature sensor 6 and the fluid guided through the lumen 4 or to the hose jacket wall 2.
• a recess can also be provided in the base body 22 so that between the temperature sensor 6 and only a wall section of the base body 22 with a small wall thickness in the range between 100 ⁇ m and 1 mm remains for the hose jacket wall 2 .
• a wall section serves to protect the temperature sensor 6.
• this can be filled with a thermally conductive paste to improve thermal coupling of the temperature sensor to the hose jacket wall 2.
• the temperature sensor 6 can be a resistance sensor, e.g. B. a sensor of the type Pt 100.
• a sensor for measuring a fluid flow through the lumen 4 and/or an optical sensor, for example for spectroscopy of the fluid guided through the lumen can be held by the adaptation device la will.
• a spectral range of a corresponding spectroscopy sensor can be in the UV, in the VIS, in the MIR and/or in the IR wavelength range.
• an electrical connector 13a is taken on, which is a two-pin socket in the illustrated embodiment.
• the first step is to insert the through-opening 15 in the hose-jacket wall 2 of the hose 3 used in the measurement.
• the adaptation device 1a is then positioned on the hose casing wall 2, with the positioning elevation 25 entering the passage opening 15 through the hose casing wall.
• the preconfigured adaptation device la is equipped with the sensor unit with the pressure sensor 5, the temperature sensor 6, the processor 11 and the connector 13a.
• the lower housing part 9 and the upper housing part 8 of the sensor housing 7 are now attached to the adaptation device 1a from below.
• Mounting strips 29, 30, which are formed on both sides of the base body 22 of the adaptation device la, are clamped between the clamping surfaces of the lower housing part 9 on the one hand and the upper housing part 8 on the other hand (cf. FIG. 5).
• the mounting strips 29, 30 form a mounting structure for holding the adaptation device 1a on the sensor housing 7.
• This mounting structure also serves to seal the two housing halves 8, 9 from one another. This ensures that no medium from the outside undesirably penetrates into the interior of the sensor housing 7 .
• the upper housing part 8 has on both sides of the mounting strips 29, 30 Rastha ken 31, 32, the complementary to this designed locking bolts 33, 34 behind grab, which are formed on the lower housing part 9.
• the latching hooks 31, 32 are formed onto the upper part 8 of the housing.
• This latching/clamping retention of the adaptation device 1a between the housing parts 8, 9 presses the adapter housing seal 18 circumferentially against the upper housing part 8, which leads to the housing interior being sealed off from the outside.
• this holder generates a contact pressure of the adapter sealing area 17 of the base body 22 of the adaptation device 1a on the hose jacket wall 2, so that the adaptation device 1a seals against the hose jacket wall 2 around the hose jacket wall passage opening 15.
• a seal can, for example, correspond to the IP 44 standard.
• the soft plastic component 19 and/or the adaptation recesses 23, 24 ensure that the adaptation device 1a is adapted to the respective outer circumference of the hose jacket wall 2.
• the sensor unit of the adaptation device 1a is connected to the external component via the connector 13a and the sensor device 1 is ready for measurement.
• the pressure of a fluid guided through the lumen 4 and its temperature are measured and can be monitored in this way.
• the pressure is measured via the pressure sensor 5 by coupling the fluid to a pressure-sensitive sensor surface 5a via the adapter passage opening 14.
• a pressure measuring range of the pressure sensor 5 can be between -200 mmHg and 700 mmHg and in particular between -50 mmHg and 300 mmHg.
• the sensor device 1 is used in particular in extracorporeal membrane oxygenation (ECMO).
• the fluid to be measured can be breathing air and/or blood/blood plasma. With the sensors 5, 6, blood pressure and blood temperature can be measured.
• an adhesive can also be used as an alternative or in addition.
• an adhesive can be used which contracts when it hardens, so that the contact pressure of components 1a, 8 and 9 against one another is increased and the sealing effect of the respective sealing structures is thus increased.
• components 1a, 8 and 9 can also be connected by plastic welding.
• the adaptation device 1a can cover half the circumference of the hose casing wall 2, ie it can extend over the hose 3 with a circumferential extent of 180°.
• this circumferential overlapping area can also have a different angle in the range, for example, between 150° and 210°.
• the sensor housing 7 is then designed accordingly, so that in particular the lower housing part 9 encompasses the remaining tubing circumference.

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• Heart & Thoracic Surgery (AREA)
• Animal Behavior & Ethology (AREA)
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• Measuring Fluid Pressure (AREA)

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• 2021
  • 2021-05-17 DE DE102021204971.0A patent/DE102021204971A1/de active Pending
• 2022
  • 2022-05-11 CN CN202280035386.2A patent/CN117769642A/zh active Pending
  • 2022-05-11 EP EP22730360.9A patent/EP4341658A1/de active Pending
  • 2022-05-11 WO PCT/EP2022/062776 patent/WO2022243131A1/de active Application Filing

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