WO2021110599A1 - Coussinet de poignet, partie poignet, son procédé de production et dispositif de mesure - Google Patents

Coussinet de poignet, partie poignet, son procédé de production et dispositif de mesure Download PDF

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Publication number
WO2021110599A1
WO2021110599A1 PCT/EP2020/083965 EP2020083965W WO2021110599A1 WO 2021110599 A1 WO2021110599 A1 WO 2021110599A1 EP 2020083965 W EP2020083965 W EP 2020083965W WO 2021110599 A1 WO2021110599 A1 WO 2021110599A1
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WO
WIPO (PCT)
Prior art keywords
cuff
flexible layer
hard
receiving
finger
Prior art date
Application number
PCT/EP2020/083965
Other languages
German (de)
English (en)
Inventor
Aaron Weber
André Hein
Thomas Thalmeier
Original Assignee
Pulsion Medical Systems Se
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pulsion Medical Systems Se filed Critical Pulsion Medical Systems Se
Publication of WO2021110599A1 publication Critical patent/WO2021110599A1/fr

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Classifications

    • 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
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02233—Occluders specially adapted therefor
    • 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
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02233—Occluders specially adapted therefor
    • A61B5/02241—Occluders specially adapted therefor of small dimensions, e.g. adapted to fingers

Definitions

  • the present invention relates to a cuff part, in particular for a non-invasive blood pressure measuring device, as well as a measuring device for the continuous determination of the intra-arterial blood pressure on at least one finger of a hand or for the parallel or alternating continuous determination of the intra-arterial blood pressure on at least two fingers one hand.
  • the invention also relates to a cuff pad for a cuff part of the type mentioned at the outset, as well as a method for producing such a cuff part.
  • the (in particular arterial) blood pressure of a patient is one of the most important measured variables in medical technology, and the known associated, in particular also non-invasive, measurement technology is extremely diverse. This applies above all to measurement technology for the continuous monitoring of blood pressure over a longer period of time, for example in intensive care medicine but also in emergency medicine and during surgical interventions.
  • the blood pressure measuring device is often attached to the patient's limbs, for example an applanation tonometric sensor in the radial artery on the forearm or a photoplethysmographically based on the so-called ⁇ sogn.
  • "Vascular Unloading Technique" finger sensor operated according to Pen z.
  • Pressure measuring devices are for example from US 4,406,289, US 4,524,777, US 4,726,382, WO 2010/050798 A1, WO 2000/059369 A1, WO 2011/045138 A1, WO 2011/051819 A1, WO 2011/051822 A1, WO 2012/032413 A1 and WO 2017/143366 Al known.
  • near-infrared light is radiated into a finger and the pulsatile (pulse-shaped) blood flow (actually the changing blood volume) in the finger is determined using the non-absorbed portion captured by a photodetector.
  • the (near-infrared) light is usually generated with the help of one or more light-emitting diodes (LED) that work with one or more wavelengths, and with the help of one or more several light-sensitive receiver diodes (photodiodes) detected.
  • LED light-emitting diodes
  • photodiodes light-sensitive receiver diodes
  • a control system now keeps the plethysmographically registered flow (or the detected blood volume) and thus the resulting photoplethysmographic signal (volume signal v (t)) constant by applying counter pressure in a cuff (cuff pressure) pc (t) on the finger.
  • This counter pressure pc (t) is usually regulated by a fast valve or valve system in conjunction with a pump.
  • the related control of the valve or the valve system is carried out by a control unit, which is preferably implemented with a microcomputer.
  • the main input signals are the PPG signal v (t) and the cuff pressure pc (t).
  • the pressure pc (t) necessary to keep the PPG signal v (t) constant now corresponds to the intra-arterial blood pressure pa (t).
  • the cuff pressure pc (t) can be changed at least as quickly as the intra-arterial blood pressure pa (t) changes, so that the real-time condition is fulfilled.
  • the upper limit frequency of pa (t) and thus the highest rate of pressure change is above at least 20 Hz, which is definitely a challenge for a pressure control system. It follows from this that the pressure regulation by means of a valve or valve system is advantageously located in the immediate vicinity of the cuff. If the air lines are too long, there is a risk of losing this cut-off frequency condition due to the low-pass effect of the lines.
  • a mechanical valve is known from EIS 4,406,289 which regulates the counter pressure in the finger cuff with the desired accuracy when it is supplied with a linear pump.
  • the valve is housed in a housing on the distal forearm and thus supplies the finger cuff with the pressure pc (t) via a short tube.
  • No. 4,524,777 describes a pressure generation system for the Vascular Unloading Technique, a constant cuff pressure Pc also being generated with a linear pump, which is superimposed with pressure fluctuations Apc (t) from a parallel-connected "Shaker” or a "Driving Actuator".
  • US Pat. No. 4,726,382 discloses a finger cuff for the Vascular Unloading Technique which has hose connections for the supply of the cuff pressure pc (t). The length of the air tubes extends to the pressure generation system, which in turn is attached to the distal forearm.
  • WO 2000/059369 A1 also describes a pressure generation system for the Vascular Unloading Technique.
  • the valve system here consists of a separate inlet and a separate outlet valve. While a relatively linear proportional pump must be used in US Pat. No. 4,406,289 and US Pat. No. 4,524,777, this system allows the use of simple, inexpensive pumps, since disruptive harmonics can be eliminated by the arrangement of the valves. Furthermore, the energy consumption of the simple pump can be significantly reduced by the valve principle.
  • a system for the vascular unloading technique is known from WO 2004/086963 A1, in which the blood pressure can be continuously determined in one finger, while the measurement quality is checked in the adjacent finger (“watch dog” function). After a while, the system automatically changes the "measuring finger” with the "monitoring finger”.
  • WO 2005/037097 A1 describes a control system for the Vascular Unloading Technique with several interlinked control loops.
  • WO 2010/050798 A1 discloses a pressure generation system (“front end”) attached to the distal forearm with only one valve, to which a finger cuff for the vascular unloading technique can be attached.
  • WO 2011/051819 A1 discloses an implementation of the Vascular Unloading Technique which has been improved by means of digital electronics to increase stability and for further miniaturization.
  • WO 2011/051822 A1 describes a method for the vascular unloading technique in which the measured signals v (t) and pc (t) are processed to increase long-term stability and to determine further hemodynamic parameters.
  • a method for eliminating effects resulting from vasomotor changes in the finger arteries and a method for determining cardiac output (Cardiac Output CO) are disclosed.
  • WO 2012/032413 A1 describes novel finger sensors that have a disposable part for single use. For hygienic reasons, the cuff that comes into contact with the finger is housed in the disposable part, whereas the associated pressure generation and pressure control system is housed in a reusable part. Accordingly, a separable pneumatic connection between the disposable part and the reusable part must be provided here.
  • the pressure generation and pressure control system in the prior art is attached to the distal forearm, proximal to the wrist, which has significant disadvantages: This point is often used for intravenous access and the intra-arterial access at the distal end of the radial terry should also be used be free for emergencies. Such accesses can be blocked by the pressure generation and pressure control system and its attachment. In addition, the system can slip or tilt during operation. This can have a detrimental effect on the fit of the sensors. The fit of the sensors would also improve if the finger to be measured or the corresponding hand is in a certain rest position.
  • the document WO 2017/143366 A1 proposes a measuring system for the continuous determination of the intra-arterial blood pressure on at least one finger of a hand, with at least one finger sensor, with a plethysmographic system, with at least one light source, preferably LED, with one or several wavelengths and at least one light sensor and at least one inflatable cuff, as well as with a pressure generation system with at least one valve controlled in real time with the aid of the plethysmographic system to generate a pressure in the cuff that essentially corresponds to the intra-arterial blood pressure in the finger corresponds, before, wherein the measuring system has a housing with a surface that serves as a support surface for the at least one finger and the adjacent areas of the palm.
  • the hand rests here on a support under which there are essential components that were attached to the forearm in conventional systems.
  • the cuff is accommodated in a disposable part that can be separated from the housing (and thus from the hand rest).
  • a separable pneumatic connection between the disposable part and the reusable part must again be provided.
  • cuff pads that exert the (counter) pressure on the finger inserted into the finger cuff are usually designed as curved, soft, flexible cushions (for example made of PVC) or floating ring or donut-shaped ring cushions and connected to the pressure generation system via hose lines .
  • the edges of conventional cuff pads lift at their edges from the finger-receiving tubes in which they are inserted.
  • Contaminants in particular bacteria and germs, can penetrate into the gaps that are created in this way and settle there.
  • disinfectants and / or cleaning agents can also remain in gaps at the edges of conventional cuff pads and damage the device through long contact.
  • a cuff pad for installation in a ring-like receiving tube for receiving a portion of a finger of a hand passed through the receiving tube, the cuff pad having a hard-flexible layer and a soft-flexible layer, and an interior space formed between the hard-flexible and soft-flexible layers Cuff pad can be filled with a fluid.
  • Hard-flexible and soft-flexible are to be understood as relative terms in such a way that the soft-flexible layer is more flexible than the hard-flexible layer.
  • the hard-flexible layer forms a stable base for insertion into the receiving tube and can be preformed in such a way that it rests permanently on the receiving tube without lifting off the edges of the receiving tube when the interior of the cuff pad is pressurized.
  • the hard-flexible layer resting on the receiving body does not deform any further.
  • the bulging of the preformed, soft, flexible layer is effected by the application of fluid pressure via a fluid supply.
  • the soft, flexible layer preferably has a plastic which can advantageously be selected from the group consisting of polyurethane, polyvinyl chloride, polyamide, polyamide-polyethylene, polypropylene-polyamide-polyethylene, and polyethylene-polyethylene terephthalate
  • the hard-flexible layer preferably has a plastic or a plastic composite material which can advantageously be selected from the group consisting of polyethylene terephthalate and glycol-modified polyethylene terephthalate (PET-G).
  • PET-G glycol-modified polyethylene terephthalate
  • the modulus of elasticity of a material of the hard-flexible layer differs from the modulus of elasticity of a material of the soft-flexible layer by at least a factor of 8.
  • the hard-flexible layer is preferably thicker than the soft-flexible layer, particularly preferably at least by a factor of two.
  • the soft elastic layer can advantageously have a thickness between 100 and 200 gm, for example, and the hard elastic layer between 250 and 500 gm
  • the hard-flexible layer and / or the soft-flexible layer can advantageously also be embodied in multiple layers.
  • the soft, flexible layer is preformed to be bulbous or chamber-like for receiving the fluid, for example air.
  • the hard-flexible layer has a fluid access opening to the interior of the cuff pad.
  • This can significantly simplify the production of a fluid access, since, depending on the installation situation, a simple punching of the hard-flexible layer can be sufficient to create the fluid access.
  • the cuff pad can advantageously be glued into a ring-like receiving tube for receiving a section of a finger of a hand passed through the receiving tube so that the fluid access opening is at least partially aligned with a fluid opening in an inner wall of the ring-like receiving tube.
  • the cuff pad can also have a layer of a hotmelt adhesive that rests on the hard-flexible layer (on the side of the hard-flexible layer facing away from the soft-flexible layer).
  • a hotmelt adhesive that rests on the hard-flexible layer (on the side of the hard-flexible layer facing away from the soft-flexible layer).
  • hotmelts known per se from the prior art can be used, which the person skilled in the art can select according to the material pairing of the hard-flexible layer / receiving tube.
  • the cuff pad can thus be positioned in the receiving tube at ambient temperature and then glued to it by heating.
  • the cuff pad has a double-sided cuff pad adhesive tape which has a first adhesive layer, a second adhesive layer and a carrier layer arranged between the first and second adhesive layers, the first adhesive layer resting on the hard-flexible layer and the second adhesive layer is covered with a peelable release film, which can be peeled off for gluing the cuff pad into the receiving tube.
  • the release film preferably has a finger tab for peeling off the release film from the second adhesive layer.
  • the finger tab protrudes further beyond the hard-flexible layer in one direction than the width of the hard-flexible layer in this direction.
  • the finger tab can then be folded back onto the separating film in such a way that the finger tab protrudes over the hard-flexible layer in the direction opposite to the direction in which the unfolded finger tab protrudes over the hard-flexible layer.
  • the cuff pad can then be inserted into a ring-like receiving tube for receiving a section of a finger of a hand passed through the receiving tube in such a way that the direction in which the finger tab protrudes over the hard-flexible layer is parallel to the axial direction of the receiving tube, and the cuff pad is in is brought to an intended position for the application of the cuff part.
  • the release liner can then be peeled off by pulling on the finger tab while the cuff pad is held in place.
  • one aspect of the present invention provides a method of manufacturing a cuff part, wherein a cuff pad according to one of the above embodiments is glued into a ring-like receiving tube for receiving a portion of a finger of a hand passed through the receiving tube.
  • the invention relates to a cuff part which has at least one ring-like receiving tube for receiving a section of a respective finger of a hand passed through the receiving tube and in each case at least one cuff pad according to one of the above embodiments, which can be filled with a fluid and is arranged in each of the at least one receiving tube , wherein in each case the hard-flexible layer of the cuff pad facing an inner wall of the ring-like receiving tube and the soft, flexible layer of the cuff pad faces away from the inner wall of the ring-like receiving tube.
  • the cuff part has at least one respective fluid supply to the cuff cushion or the cuff cushions of each of the receiving tubes.
  • the cuff part has at least two ring-like receiving tubes for receiving a section of a respective finger of a hand passed through the receiving tube, the receiving tubes being formed in a common receiving body, and the fluid feeds being formed as hose-free channels in the receiving body.
  • production processes that can be easily automated, in particular (injection) casting and (CNC) milling processes, can advantageously be used for the production of the receiving body.
  • the receiving body has a base body, which has recesses corresponding to the channels, and a cover that is connected to the base body and closes off at least one of the channels to the outside.
  • the cover can for example be welded or glued to the base body.
  • Advantageously suitable materials for the base body as well as for the cover can, for example, ABS (acrylonitrile-butadiene-styrene), PC-ABS, SAN (styrene-acrylonitrile), PBT (polybutylene terephthalate), PC (polycarbonate), PS-HI (polystyrene), Polyester (PET) as well as PVC.
  • the base body can also be composed of two or more parts.
  • the base body can have an injection-molded part, in particular made of plastic.
  • the cuff part preferably has a connection assigned to the respective channel for feeding the fluid into the cuff part.
  • fluid pressure in particular air pressure
  • the connection can be a valve connection.
  • a valve device can be formed in the cuff part, or a valve function results in cooperation with a fluid connection of an associated base part with the pressure supply.
  • a valve tappet and a resiliently mounted closure body can interact here.
  • a design with a valve connection is particularly suitable when the sleeve part is replaceable, in particular as a disposable part.
  • Interchangeable cuff parts are generally advantageous for adapting to different hand or finger sizes and for reasons of hygiene.
  • connection preferably has a sealing element which prevents fluid from escaping.
  • At least two of the connections can be arranged one behind the other with respect to the direction of the intended insertion of the fingers into the receiving tubes, i.e. parallel to the axial direction of the receiving tubes, either in alignment or possibly also slightly offset.
  • the channel arrangement can thus be implemented in a space-saving manner with regard to the required width of the sleeve part. If the channels are arranged between the fingers, this avoids in particular that the fingers have to be spread too far.
  • a measuring device for the continuous determination of the intra-arterial blood pressure on at least one finger of a hand, which has a base part, a cuff part which can be connected to the base part without tools and can be separated from the base part without tools, according to one of the above embodiments, a radiation source for emitting light into the respective finger through an optical emission surface, a photodetector for detecting a portion of the light captured by an optical collector surface and not absorbed in the respective finger, and a pressure control system for the Controlling a fluid pressure in the respective cuff pad as a function of the detected non-absorbed portion of the light.
  • An exchangeable design of the cuff part in particular also as a disposable part, can generally be advantageous for adaptation to different hand or finger sizes and for reasons of hygiene.
  • the technology used to build up pressure in the cuff and to regulate the pressure can in principle be designed as known from the prior art.
  • FIG. 1 shows a measuring device according to the invention in a side view, a cuff part having an ergonomic hand rest and a finger receiving part being placed on a base part containing a pressure control system,
  • FIG. 2 shows a perspective view of the measuring device from FIG. 1 obliquely from above
  • FIG. 3 shows a perspective view of the measuring device from FIG. 1 obliquely from below
  • FIG. 4 shows a cuff part like the one shown in FIG. 3 obliquely from below, but without an associated base part, the cuff pads not being shown,
  • FIG. 5a shows a view of the measuring device from FIG. 1 from the rear, i.e. from the side of the palm rest (from the left in FIG. 1),
  • FIG. 5b shows a sectional illustration of a detail of the cuff part of the measuring device shown in FIG. 5a, the sectional plane is indicated in the top view of FIG. 6a of the cuff part by the broken line A-A ',
  • FIG. 5c shows a sectional illustration of a detail of the cuff part of the measuring device shown in FIG. 5a, the sectional plane parallel to FIG. 5b is indicated in the plan view of FIG. 6a of the cuff part by the broken line B-B ',
  • FIG. 6 a shows the cuff part of the device from FIGS. 5 a-5 c in FIG
  • FIG. 6b shows the sleeve part of the device from FIGS. 5a-5c in FIG.
  • FIG. 7 shows a possible valve device for the connections for the fluid supply, the valve device being shown once in the open and once in the closed state,
  • FIG. 8a shows a cuff pad according to the invention prior to installation, the direction of view pointing diagonally to the molded soft, flexible layer
  • FIG. 8b shows the cuff pad from FIG. 8a, which is curved as if in the installed position, the direction of view pointing diagonally to the molded soft, flexible layer
  • FIG. 8c shows the still uncurved cuff pad from FIG. 8a, the direction of view pointing obliquely to the hard-flexible layer
  • FIG. 8d shows the curved cuff pad from FIG. 8b, the direction of view pointing obliquely to the hard-flexible layer.
  • FIG. 9a shows a simple embodiment of a cuff part according to the invention in a perspective view
  • FIG. 9b shows the cuff part from FIG. 9b as a section in a perspective view, the front half being cut away compared to FIG. 9a.
  • FIG. 9c shows a cross-sectional view of the sleeve part from FIG. 9a.
  • FIGS. 10a-10c show steps for producing a cuff part according to the invention using a hotmelt adhesive.
  • Figures 11a-11f show steps for producing a cuff part according to the invention using a double-sided adhesive tape.
  • FIG. 12 shows schematically the double-sided adhesive tape before it is applied to the hard-flexible layer.
  • the blood pressure measuring device 1 is designed as a photoplethysmographic measuring system which functions according to the so-called "Vascular Unloading Technique". Metrological components, ie in particular optical and electronic components as well as mechanical components of the pressure generation and pressure control system accommodated in the base part 3, can in principle be implemented in a manner similar to the prior art mentioned at the beginning.
  • the cuff part placed on the base part 3 has a ergonomic palm rest 4, an ergonomic finger rest 6 divided by a web 5, and the receiving part 7.
  • the receiving part 7 is designed, as in the perspective view of FIG. 2 (viewing direction diagonally from the top right in FIG. 1) to receive two fingers, which makes it possible to measure alternately on both fingers.
  • the cuff part is
  • the pressure control system in the base part 3 is supplied with compressed air via the cable 8, which is attached diagonally to the side and points in the direction of the forearm when the hand is placed as intended, and the cable 8 is also used to supply energy for the pressure control system (not shown), light sources (not shown) and photo detectors (not shown) or associated control, amplifier and evaluation circuits in the measuring device 1.
  • Measurement data can be output via a suitable electronic interface through the cable 8 to a patient monitor.
  • the lateral attachment of the cable 8, pointing diagonally in the direction of the forearm when the hand is properly placed, has the advantage that the cable can be guided along the patient's arm, but the area of the wrist with tendons and vessels does not rub against the cable 8, and in particular the carpal tunnel is spared.
  • the two inflatable cuff pads 10 according to the invention arranged in the receiving tubes 9 are each connected to the pressure generation and pressure control system via a connection 11 at the interface between the cuff part 2 and the base part 3.
  • a connection 11 at the interface between the cuff part 2 and the base part 3.
  • one of the two connections 11 is covered by the cross member 12, which carries light guides 13 through which light from the light sources arranged in the base part 3 to the fingers or from the fingers to the ones in the base part
  • connection 11 there is preferably a valve device so that the connection 11 on the base part is flush with the housing of the base part 3, if the base part 3 and cuff part 2 are not connected to one another.
  • a valve device is shown by way of example in FIG.
  • the fluid passage 15 is closed by means of the spring 14 resiliently mounted valve body 16.
  • the connection 11 of the sleeve part 2 has a valve tappet 17 which, in the connected state, presses the valve body 16 downwards in order to open the fluid passage 15.
  • the seal to the outside takes place via a sealing element 18 designed as an elastic, conical collar.
  • the channels 19, which connect the respective connection 11 to the respective cuff pad 20, are formed in the base body 21 of the receiving body 7 made of plastic by means of injection molding and closed to the outside via the welded or glued-on plastic cover 20.
  • FIGS. 5b and 5c The guidance of the channels 19 in the base body 21 of the receiving body 7 is illustrated with the aid of the sectional views in FIGS. 5b and 5c together with the top view of FIG. 6a.
  • the sectional plane of FIG. 5b is shown as a broken line A-A 'and the sectional plane of FIG. 5c is shown as a broken line B-B' in FIG. 6a.
  • connections 11 lie one behind the other in a direction parallel to the axial direction of the receiving tubes 9. From there, the respective channel 19, as can be seen in FIG. 5b, is first led upwards, further diagonally to the side, as shown in FIG. 6a, and finally downwards to the fluid access opening 22 of the respective cuff pad 10, as can be seen from FIG. 5c .
  • the fluid access opening 22 is punched into the hard-flexible layer 10a of the cuff pad 10, which is glued to the receiving body 7 for assembly in the respective receiving tube 9.
  • the preformed, soft, flexible layer 10b is connected to the hard, flexible layer 10a in an airtight manner at its edges, so that the space between the layers 10a, 10b can be filled with fluid, in particular air, and pressurized.
  • FIGS. 8b and 8d the cuff pad is shown curved as in the installed position, in FIGS. 8a and 8c it is not bent for illustration before installation.
  • the softly flexible layer 10b is preformed in the manner of a chamber in order to provide an interior space between the hard-flexible and soft-flexible layers 10a, 10b that can be filled with fluid.
  • the Hard-flexible layer 10a curved for installation in order to be exactly positionable in the receiving tube 9.
  • FIGS. 9a-9c show a simple embodiment of a cuff part 2 according to the invention.
  • the hard-flexible layer 10a of the cuff pad 10 is glued into the respective receiving tube 9 of the receiving body 7 in such a way that the fluid access opening 22 punched into the hard-flexible layer 10a is on a corresponding opening of the channel system 19 formed in the receiving body 7 comes to rest and can thus be acted upon with fluid pressure, in particular air pressure.
  • the hard-flexible layer 10a can be connected to a layer of hot-melt adhesive (hotmelt) 23.
  • the hotmelt layer 23 has a recess 27 for the fluid access opening 22 and is applied to the pre-bent hard-elastic layer 10a.
  • the composite can then be pushed into a receiving tube, positioned and fixed by heating.
  • the hotmelt layer 23 then also serves as a lateral seal against escape of fluid in the area of the fluid access opening 22.
  • the hard-elastic layer 10a can be glued into the receiving tube 9 of a receiving part 7 of a cuff part 2 by means of a double-sided adhesive tape 24.
  • the adhesive tape 24 also shown from below in FIG. 12, has a punched-out recess 27 for the fluid access opening 22 and is initially covered on one side with a release film 25. The uncovered side of the adhesive tape 24 is applied to the hard-flexible layer 10a of the cuff pad 10 so that the recess 27 and the fluid access opening 22 cover or at least overlap.
  • the separating film continues in the direction perpendicular to the installation curvature of the hard-flexible layer 10a as a finger tab 26, which is significantly longer than the width of the hard-flexible layer 10a.
  • the finger tab 26 is folded back onto the separating film 25 in such a way that it now protrudes in the opposite direction over the hard-flexible layer 10a, as shown in FIG. 11d. While FIGS. 11a and 11b each show the cuff pad 10 obliquely from above, FIGS. 11c and 11d each show the cuff pad 10 obliquely from below.
  • the cuff pad with the adhesive tape 24 is inserted into the receiving tube 9 of the receiving body 7 of the cuff part 2 that the finger tab 26 in the axial direction of the receiving tube 9 the receiving body 7 protrudes.
  • 11f shows a longitudinal section through the receiving tube 9, so that the cuff pad 10 is shown divided essentially symmetrically.
  • the release film 25 can be peeled off the adhesive tape 24 while the cuff pad 10 is held in position.
  • the cuff pad 10 is finally glued to the receiving body 7 via the adhesive tape 24 in the receiving tube 9.
  • the adhesive tape 24 in turn effects a lateral seal against escape of fluid in the area of the fluid access opening 22.

Abstract

La couche dure flexible (10a) du coussinet de poignet (10) est collée dans le tube de réception spécifique (9) du corps de réception (7) de sorte que l'ouverture d'accès au fluide (22) poinçonnée dans la couche dure flexible (10a) vienne reposer sur une ouverture correspondante du système de canaux (19) formé dans le corps de réception (7) et puisse ainsi être soumis à une pression de fluide, plus précisément à la pression d'air. La couche souple flexible préformée (10b) est hermétiquement scellée sur les bords à la couche dure flexible (10a) de sorte que l'espace intermédiaire entre les couches (10a, 10b) puisse être rempli du fluide, plus précisément de l'air.
PCT/EP2020/083965 2019-12-01 2020-11-30 Coussinet de poignet, partie poignet, son procédé de production et dispositif de mesure WO2021110599A1 (fr)

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DE102019008319.9A DE102019008319A1 (de) 2019-12-01 2019-12-01 Manschettenpolster, manschettenteil, verfahren zu dessen herstellung und messvorrichtung
DE102019008319.9 2019-12-01

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406289A (en) 1980-09-12 1983-09-27 Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Device for the indirect, non-invasive and continuous measurement of blood pressure
US4524777A (en) 1983-02-25 1985-06-25 Ueda Electronic Works Limited Automatic, continuous and indirect blood pressure measurement apparatus
DE3612532A1 (de) * 1985-04-12 1986-10-23 Omron Tateisi Electronics Co., Kyoto Elektronisches blutdruckmessgeraet
US4726382A (en) 1986-09-17 1988-02-23 The Boc Group, Inc. Inflatable finger cuff
EP0926980A2 (fr) * 1996-07-30 1999-07-07 Itamar Medical (C.M.) 1997 Ltd. Procede et appareil de detection non invasive d'etats pathologiques par controle du tonus arteriel peripherique
WO2000059369A2 (fr) 1999-03-30 2000-10-12 Cnsystems Medizintechnik Gmbh Tensiometre non invasif a mesure continue
WO2004086963A2 (fr) 2003-04-01 2004-10-14 Cnsystems Medizintechnik Gmbh Dispositif et procede pour mesure non invasive continue de la tension arterielle
WO2005037097A1 (fr) 2003-10-21 2005-04-28 Cnsystems Medizintechnik Gmbh Dispositif et procede pour reguler la pression dans un manchon gonflable d'un tensiometre
US20050148885A1 (en) * 2003-08-22 2005-07-07 Eppcor, Inc. Non-invasive blood pressure monitoring device and methods
WO2010050798A1 (fr) 2008-10-29 2010-05-06 Bmeye B.V. Dispositif de mesure de pression sanguine, extrémité antérieure, corps gonflable et produit informatique
WO2011045138A1 (fr) 2009-10-15 2011-04-21 Finapres Medical Systems B.V. Dispositif de commande de la pression dans un capteur de pression gonflable
WO2011051822A1 (fr) 2009-10-29 2011-05-05 Cnsystems Medizintechnik Ag Appareil et procédés pour améliorer et analyser des signaux à partir d'un dispositif non invasif de mesure en continu de la pression sanguine
WO2012032413A2 (fr) 2010-09-07 2012-03-15 Cnsystems Medizintechnik Ag Capteur jetable et amovible pour la mesure continue non invasive de la pression artérielle
WO2017143366A1 (fr) 2016-02-22 2017-08-31 Cnsystems Medizintechnik Ag Procédé et système de mesure pour la détermination continue de la pression sanguine intra-artérielle
WO2018189803A1 (fr) * 2017-04-11 2018-10-18 株式会社ソシオネクスト Brassard de sphygmomanomètre

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11553848B2 (en) * 2017-09-29 2023-01-17 Fitbit, Inc. Devices and methods for controlling inflation rate in blood pressure measurements

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406289A (en) 1980-09-12 1983-09-27 Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Device for the indirect, non-invasive and continuous measurement of blood pressure
US4524777A (en) 1983-02-25 1985-06-25 Ueda Electronic Works Limited Automatic, continuous and indirect blood pressure measurement apparatus
DE3612532A1 (de) * 1985-04-12 1986-10-23 Omron Tateisi Electronics Co., Kyoto Elektronisches blutdruckmessgeraet
US4726382A (en) 1986-09-17 1988-02-23 The Boc Group, Inc. Inflatable finger cuff
EP0926980A2 (fr) * 1996-07-30 1999-07-07 Itamar Medical (C.M.) 1997 Ltd. Procede et appareil de detection non invasive d'etats pathologiques par controle du tonus arteriel peripherique
WO2000059369A2 (fr) 1999-03-30 2000-10-12 Cnsystems Medizintechnik Gmbh Tensiometre non invasif a mesure continue
WO2004086963A2 (fr) 2003-04-01 2004-10-14 Cnsystems Medizintechnik Gmbh Dispositif et procede pour mesure non invasive continue de la tension arterielle
US20050148885A1 (en) * 2003-08-22 2005-07-07 Eppcor, Inc. Non-invasive blood pressure monitoring device and methods
WO2005037097A1 (fr) 2003-10-21 2005-04-28 Cnsystems Medizintechnik Gmbh Dispositif et procede pour reguler la pression dans un manchon gonflable d'un tensiometre
WO2010050798A1 (fr) 2008-10-29 2010-05-06 Bmeye B.V. Dispositif de mesure de pression sanguine, extrémité antérieure, corps gonflable et produit informatique
WO2011045138A1 (fr) 2009-10-15 2011-04-21 Finapres Medical Systems B.V. Dispositif de commande de la pression dans un capteur de pression gonflable
WO2011051822A1 (fr) 2009-10-29 2011-05-05 Cnsystems Medizintechnik Ag Appareil et procédés pour améliorer et analyser des signaux à partir d'un dispositif non invasif de mesure en continu de la pression sanguine
WO2011051819A1 (fr) 2009-10-29 2011-05-05 Cnsystems Medizintechnik Ag Procédé de régulation numérique pour mesure de tension artérielle
WO2012032413A2 (fr) 2010-09-07 2012-03-15 Cnsystems Medizintechnik Ag Capteur jetable et amovible pour la mesure continue non invasive de la pression artérielle
WO2017143366A1 (fr) 2016-02-22 2017-08-31 Cnsystems Medizintechnik Ag Procédé et système de mesure pour la détermination continue de la pression sanguine intra-artérielle
WO2018189803A1 (fr) * 2017-04-11 2018-10-18 株式会社ソシオネクスト Brassard de sphygmomanomètre
US20190387980A1 (en) * 2017-04-11 2019-12-26 Socionext Inc. Blood pressure monitoring cuff

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