CN102483365A

CN102483365A - Contact pressure measuring method

Info

Publication number: CN102483365A
Application number: CN2010800373242A
Authority: CN
Inventors: 田卷昌己; 饭野正规; 一文字希枝子; 真田弘美
Original assignee: University of Tokyo NUC; Cape Co Ltd
Current assignee: University of Tokyo NUC; Cape Co Ltd
Priority date: 2009-08-25
Filing date: 2010-07-07
Publication date: 2012-05-30
Anticipated expiration: 2030-07-07
Also published as: JP5107979B2; JP2011047711A; WO2011024372A1; CN102483365B

Abstract

Provided is a contact pressure measuring method whereby the contact pressure between a patient and bedding can be measured with high accuracy by taking into account the positional relationship. The device for this method comprises a contact pressure sensor that is provided with a plurality of sensor elements the insides of which are filled with air and which, if pressed, apply air pressure to the outside via connected tubes, one of the sensor elements being located in the central portion, the rest thereof being located on a concentric circle around the above-mentioned one sensor element; and a main body to which the contact pressure sensor is connected. The main body comprises a power switch, a start button, a guidance button, a memory button, a memory, and a liquid crystal display. An external appearance schematic of the contact pressure sensor is shown on the liquid crystal display. Furthermore, when contact pressure is applied to the contact pressure sensor, then the respective contact pressure is displayed corresponding to the arrangement state of the sensor elements. Subsequently, the contact pressure sensor is made to move so that the sensor element indicating the highest contact pressure will be located in the central portion of the external appearance schematic. Then, by pressing the start button to ON, the maximum value of the contact pressure on the sensor element located in the central portion is measured.

Description

Press method for measurement

Technical field

The present invention relates to pressing between a kind of each position and bedding of the health that can simply measure laid-up patient for example etc., and further this measurement is stored in storer and easily by the method for measurement that presses of vision identification.

Background technology

In recent years, in the nurse of care centre, hospital or the occasion of looking after, be the nurse of object or look after along with the aging of population is growing on and on bedfast patient.In this kind occasion, the patient receives the danger that continues compressing and face bedsore (pressure sore) mostly for a long time.Oppress the viewpoint of preventing bedsore to take place based on desire through reducing this, at home and abroad circulation has with the various apparatus that prevent pressure ulcers headed by the mattress at present.

In addition, except that this countermeasure, also need know the pressure that in fact which kind of position of patient is applied which kind of degree, just exploitation has the various measuring equipments that press thus.For instance, have in the one side of bed and lay a plurality of pressure-sensitive sensors, and, show pressure distribution with color differentiating through the signal of computer analyzing from these sensors.This device be as research with and use very expensive owing to be article customized, and be large-scale plant, knowledge, technology that need be highly during use.

Therefore, looking after in the occasion of reality, know specifically that the patient's body surface is to be under the environment that bears which kind of compressing, be suitable difficulty even will specifically know the improvement degree of using the pressure environment that apparatus produced that prevents pressure ulcers etc.Thereby present situation is only to have few methods to make to be engaged in the staff of nurse etc. to know the bedsore degree of causing danger that pressure caused of invisible (can't be observed by eyes), and causes former preventible bedsore, or causes its deterioration.

Thereby, be to solve problem in this respect, and propose the simple structure shown in patent documentation 1, and can measure the measuring equipment that presses of pressing of being produced between body surface and the bedding.

This presses measuring equipment and has the sensor of pressing; This presses sensor and is made up of following: the polyfoam that can recover original shape when it pushes releasing is being sandwiched under the state of not pushing between 2 air impermeability sheet materials; And configuration extends to the pipe fitting in the outside of aforementioned air impermeability sheet material from the vicinity of this polyfoam; Again with the gluing each other of the aforementioned air impermeability sheet material around these polyfoam and the pipe fitting; This presses measuring equipment and possesses again: pressure detector, and it is disposed at this leading section that presses the pipe fitting of sensor; Change-over circuit, it receives the pressure signal of this pressure detector, and directly exports when being single at the signal from pressure detector, then export when being a plurality of these signal values mean value or peaked any; And display part, its output signal to this change-over circuit carries out numeral and shows.

In addition, according to patent documentation 1, known its uses this to press method for measurement: when measurement presses, at the power supply that presses sensor clip opening device under the state between patient and the bedding, and show to be applied at display part and press pressing of sensor.

The prior art document

Patent documentation

Patent documentation 1: TOHKEMY 2000-111420

Summary of the invention

The problem that invention institute desire solves

In the above-mentioned patent documentation 1 described method for measurement that presses in the measuring equipment; If have a plurality of when pressing sensor; Then export these sensor signals mean value or peaked any; But do not bear maximum pressing owing to know which kind of position of patient, and have the extremely difficult position that will press maximum to move to the problem of desired position.More and, measurement only shows with numerical degree, thus be difficult to read be applied to press sensor press last variation.Again, which kind of direction the maximum patient's body position that presses of unclear generation is positioned at.

The present invention accomplishes in view of above-mentioned problem, and purpose is to provide a kind of can measure pressing between patient and the bedding accurately according to the position relation, and further this measurement is stored in storer and the easy method for measurement that presses by the vision identification.

Solve the mode of problem

The described method for measurement that presses of claim 1; It is the method for measurement that presses that presses measuring equipment; The said formation that presses measuring equipment possesses and has: press sensor, it possesses inner enclose air and when pushing, can apply the sensor module of air pressure via the pipe fitting that is linked to the outside; Said sensor module is provided with one at central portion, and around the sensor module of this central portion, is provided with a plurality of with concentric circles; And body, its connection presses sensor, and this body has power switch, be set as the startup button of general modfel, be set as guiding button, storage button, storer and the LCD of guided mode; And connect the aforementioned sensor that presses; And under power opening state, this schematic appearance that presses sensor can be shown on the LCD, and applies when pressing pressing sensor; Can show that accordingly each presses with the configuration status of aforementioned each sensor module on the aforementioned schematic appearance; The method is characterized in that: when measurement presses, at first will press sensor clip between the object that measurement sites and this measurement sites contacted, behind the unlatching aforementioned power source switch; Open aforementioned guiding button; Make be applied to pressing of each sensor module be shown on the foregoing liquid crystal display with aforementioned schematic appearance on the corresponding display position of configuration status of aforementioned each sensor module, then move the aforementioned sensor that presses, so that the maximum sensor module that presses of expression becomes the sensor module that is positioned at the central portion on the aforementioned schematic appearance; Open the startup button subsequently, measure the maximal value that presses that is applied to the sensor module that is positioned at this central portion thus.

The described invention of claim 2; Measure pressing in the method for measurement of claim 1 and to be applied to pressing of aforementioned sensor components; After the maximal value that presses that then is in application to this sensor module is confirmed, open aforementioned storage button, thus with this value storage in aforementioned memory; Subsequently, opening aforementioned startup button measures and presses.

In addition; The described invention of claim 3; Pressing in the method for measurement for a long time by aforementioned startup button of claim 1 with its unlatching; Measure pressing of aforementioned each sensor module that presses sensor in regular turn with set interval thus, and this measurement be shown on the foregoing liquid crystal display with figure and numerical value, can pick out be applied to aforementioned each sensor module press last variation.

The effect of invention

Invention according to claim 1; When measurement presses, can be at first with pressing sensor clip between the object that measurement sites and this measurement sites contacted, behind the power-on switch; Open the guiding button; Make to be applied to pressing of each sensor module and to be shown in display position corresponding on the LCD, move again and press sensor, so that the maximum sensor module that presses of expression becomes the sensor module that is positioned at the central portion that presses sensor with the configuration status of each sensor module.Open the startup button subsequently, can easily measure the maximal value that presses.

Invention according to claim 2; Press through opening the measurement of startup button; And at the definite back unlatching of the maximal value that presses storage switch; Just can with this value storage in storer, open lasting measurement of startup button then and press, can hocket thus the storage of storer and the measurement that presses.Be applied to pressing of each sensor module but readout memory is stored subsequently, therefore can check these time histories, and easily the patient made in response to disposal.

Invention according to claim 3, behind the power-on switch, unlatching is guided button and is set as guided mode; Again further for a long time by starting button; Just can measure pressing of each sensor module of pressing sensor in regular turn with set interval, and it is shown on the LCD with figure and numerical value, so can know the variation that lasts that presses in real time; Thereby the easy variation that presses, and learn that easily that position should be specifically noted that with each position of vision identification.

Description of drawings

Fig. 1 representes embodiment of the present invention, is the outside drawing that expression presses the state that sensor is connected with body;

(a) of Fig. 2 is the figure that representes through locking mechanism connecting piece to be locked in the state of body for will press key diagram, (b) that sensor (not shown) is connected with body via connecting piece;

Fig. 3 represent by the connecting piece recess of being located at body be linked to the connecting piece mechanism that the connecting piece protuberance that presses sensor constitutes, (a) be the state of expression before combining, (b) be the figure of expression bonding state;

Fig. 4 is the block diagram of the circuit of expression body;

Process flow diagram when Fig. 5 presses for measuring; And

Be shown in the bulk liquid crystal display during Fig. 6 illustration guided mode and be applied to pressing of each sensor module, and press sensor, shown in arrow, make the figure that is applied to the state that pressing of each sensor module change through moving.

Symbol description

10 press measuring equipment

20 press sensor

21 outer bags

22 sensor modules

23 pipe fittings

30 bodies

31 LCDs

32 housings

33 start button

34 guiding buttons

35 power switches

36 storage buttons

37 transmit button

38 register holes

38a O type ring

40 pressure transducers

50 connecting pieces

51 cylindrical duct

52 locating detents

Embodiment

Below, with reference to accompanying drawing embodiment of the present invention is described.

Fig. 1 representes to be used for the measuring equipment that presses that embodiment of the present invention presses method for measurement, and 10 expressions press measuring equipment, 20 expressions and press sensor, the outer bag of 21 expressions, 22 expression sensor modules, 23 expression pipe fittings, 30 expression bodies, 31 expression LCDs, 32 expression plastic casings, 33 expressions and start buttons, 34 expression guiding buttons, 35 expression power switches, 36 expression storage buttons, 37 expressions and transmit buttons, 50 expression connecting pieces.

As shown in the figure, press measuring equipment 10 be configured to possess: be sandwiched in pressing sensor 20 and having the body 30 of LCD 31 between patient and the bedding, press sensor 20 and be connected by connecting piece 50 with body 30.

Press sensor 20 and formed by 21 in the outer bag that the outside slightly assumes diamond in shape, the sensor module 22 of balloon-like is taken in its inside.Its peripheral part of state welding that sensor module 22 is clamped pipe 23 with two air impermeability sheet materials of thick about 0.3mm forms.Press sensor 20 in this embodiment and have five sensor modules 22, at sensor module 22 of central portion configuration (numbering 1) and at other sensor module 22 of configuration (numbering 2,3,4,5) on the circumference of this sensor module 22.In addition, the air impermeability sheet material of sensor module 22 can use polyurethane film or vinyl chloride film etc., and its thickness can suitably be set in the scope of 0.02mm～0.5mm.Again, pipe fitting 23 uses tool resistance to pressure polyurethane goods about profiles

etc.

Each pipe fitting 23 is communicated with each sensor module 22 respectively, links from outer bag 21 extensions and with connecting piece 50.On the other hand, body 30 has plastic casing 32, and its surface configuration has LCD 31.Again, the downside of this LCD 31 is provided with and starts button 33, the guiding button 34 with G number expression, power switch 35, storage button 36 and transmit button 37 etc.

In addition, on LCD 31, when power-on switch 35, just demonstrate the schematic appearance that presses sensor 20, show the numbering of each sensor module 22 accordingly with the configuration status at this place.Illustrate that here outside drawing refers to, press the figure that sensor 20 slightly assumes diamond in shape and this lineae trapezoidea and the numbering corresponding with the configuration status that is accommodated in five sensor modules 22 wherein are shown.In addition, after other various demonstrations that shown about LCD 31 will be described in.

Then, simultaneously the present invention being pressed the employed connecting piece structure that presses measuring equipment of method for measurement with reference to accompanying drawing describes.Fig. 2 connects the figure of the structure of the connecting piece 50 that presses sensor 20 and body 30 for expression; Fig. 2 (a) for will press the figure that sensor (not shown) is connected with body via connecting piece, (b) of Fig. 2 is locked in connecting piece through locking mechanism the figure of the state of body for expression.

Shown in Fig. 2 (a); Connect the connecting piece structure that presses sensor 20 and body 30 and formed by plug-like connecting piece 50 and receptacle portion, five cylindrical duct 51 that are made up of stereoplasm tube of the front end of being located at the pipe fitting 23 that is linked to sensor module 22 of this plug-like connecting piece 50 are with state configuration arranged side by side; This receptacle portion possesses register hole 38, the cylindrical duct 51 of itself and this connecting piece 50 in opposite directions, be arranged at base side and make aforementioned cylindrical duct 51 with watertight state fit.

When Fig. 2 (b) expression is connected to the receptacle portion of body 30 with connecting piece 50 fits, the groove (not shown) that the locating detent 52 of being located at connecting piece 50 back sides is locked in be located at body 30 back sides and the locking mechanism of fastening.When unlocking, then the opposing spring force that puts on aforementioned pawl 52 is upwards mentioned locating detent 52 it is broken away from from groove, and connecting piece 50 is pulled up by body 30.In addition, 39 expressions of the symbol among the figure are used to load and unload the lid of the battery (006P) of body 30; Also can replace battery through the ac adapter power supply.

Take second place, simultaneously the thin portion of connecting piece structure is described with reference to accompanying drawing.Fig. 3 represent by the connecting piece recess of being located at body be linked to the connecting piece mechanism that the connecting piece protuberance that presses sensor constitutes, the state before (a) expression of Fig. 3 combines, (b) expression bonding state of Fig. 3.

Shown in Fig. 3 (a), connecting piece 50 is set side by side with five hard cylindrical duct 51, and the pipe fitting 23 that extends from each sensor module 22 is connected with each cylindrical duct 51 respectively.On the other hand, on body 30, be provided with five register holes 38 with aforementioned each cylindrical duct 51 position in opposite directions.Dispose O type ring 38a in the porch that is equivalent to each register hole 38, it makes the fit of aforementioned cylindrical duct 51 form the watertight state.

In addition; The terminal part fixed configurations of each register hole 38 has the pressure transducer 40 (for example silicon pressure sensor) that supplies to measure air (air) pressure; When aforementioned cylindrical duct 51 is inserted in the aforementioned register hole 38; Air in this register hole 38 both quantitatively just via in the aforementioned pipe fitting 23 flow sensor assemblies 22, enclose in the sensor module 22 and will supply to measure the air press required amount.In fact, through connecting piece 50 is connected with body 30, and set for: the air capacities of enclosing in the sensor module 22 are 0.7mml, and this moment, the signal from pressure transducer 40 showed 0.0mmHg.In addition, Fig. 3 (b) expression connecting piece 50 is inserted in the state in the body 30 fully.

Take second place, simultaneously the circuit of being located in the body 30 is described with reference to accompanying drawing.Fig. 4 is the block diagram of the circuit of expression body, 40 expression pressure transducers, 41 expression A/D converters, 42 expression number/electric pressure converters, 43 expression voltage/sensators, 44 expression LCD followers, 45 expression storeies.

On body 30; The terminal part of aforementioned each register hole 38 is provided with pressure transducer 40 respectively; The output signal of pressure transducer 40 can carry out the A/D conversion by A/D converter 41; The output that converts digital signal into can convert voltage to by number/electric pressure converter 42, can further convert force value to by voltage/sensator 43 through the magnitude of voltage of changing, and be shown on the LCD 31 with numerical value (mmHg of unit) or image via LCD follower 44.

In addition, storer 45 is a nonvolatile memory, can store the pressure data of being obtained through operation store button 36.SW1～SW5 is and starts button 33, guiding button 34, power switch 35, storage button 36, transmits button 37 corresponding switch.

Then, with reference to Fig. 1, Fig. 5, Fig. 6 simultaneously to using this method for measurement that presses that presses measuring equipment 10 to describe.Fig. 5 representes to press the relevant process flow diagram of method for measurement; When (a) illustration of Fig. 6 presses measuring equipment and is in guided mode; What be shown in the bulk liquid crystal display is applied to pressing of each sensor module, and (b) expression of Fig. 6 is moved and pressed sensor and make the state that pressing of each sensor module changes that is applied to.

At first, will press sensor 20 via connecting piece 50 and be arranged at body 30, will press sensor 20 and sandwich after between patient and the bedding power-on switch 35.Thus, as shown in Figure 1, demonstrate the signal outward appearance that presses sensor 20 that slightly assumes diamond in shape at LCD 31, the position display at each sensor module 22 goes out numbering simultaneously, and the downside place shows " 0.0mmHg ".It illustrates not to pressing the state that sensor 20 is exerted pressure.

Secondly, open guiding button 34, thus on the LCD 31 with the schematic appearance that presses sensor on the corresponding display position of configuration status of each sensor module 22, just the while goes out to be applied to pressing of each sensor module 22 with graphic presentation.At this moment, show " guiding " mark in the LCD 31, form guided mode.Through being set as guided mode, just can which sensor module applying maximum to and press with the vision identification.

In addition, shown in Fig. 6 (a), graphic presentation is to show the intensity that presses that is applied to five sensor modules 22 with the concentrically ringed circle figure of four grades respectively.In the present embodiment, single circle expression is less than 30.0mmHg, and two concentric circless represent that less than 60.0mmHg three concentric circless represent that less than 90.0mmHg four concentric circless are represented 91.0mmHg above (more than or equal to 91.0mmHg), are risen in regular turn by the outside to show.

Take second place, shown in Fig. 6 (b), move and press sensor 20, become No. 1 sensor module of numbering that belongs to the central portion sensor module so that show the maximum sensor module 22 that presses, unlatching thereafter starts button 33.By this, show on the LCD 31 " generally ", form general modfel, can measure the maximal value that presses that is applied to No. 1 sensor module of this numbering through behind the certain hour.At this moment, be to show that with numerical value (mmHg of unit) maximum presses on LCD 31.

At this moment; The measuring value of each sensor module 22 also shows with circular number; Press when measuring numbering and the figure flicker of peaked sensor module 22 and transmit button 37, also can check the measuring value of 1～No. 5 each sensor module 22 in regular turn with numerical value (mmHg of unit).And guiding button 34 is not when opening, the measurement that can press with general modfel.

Be the memory space measured value, can after measurement presses, press storage button 36 and carry out.It constitutes, the top-right storer numbering of measuring value flicker twice, and data promptly are stored in the storer 45.Storage back be then because of can pressing the storage of (opening startup button 33) hocket measurement, storer according to continuing like this to measure, and after metrology operation, make the variation etc. of lasting that presses be shown in LCD, just can come identification with vision.

Again behind the power-on switch 35; Open guiding button 34 and be set as guided mode; Further just can be set as long-time pattern by starting button 33 (more than 2 seconds) for a long time; Measuring at interval pressing of each sensor module 22 of pressing sensor 20 in 0.8 second in regular turn, and it is shown on the LCD with figure and numerical value.By this, just can be easily last variation with what the vision identification pressed.In addition, for stopping long-time pattern, but powered-down switch 35 or press once more and start button 33 and be set as general modfel.Measure the interval in the present embodiment and be made as 0.8 second, but this is merely an example, as long as set optimal time interval.

Then, the function to storer further describes.

It constitutes, and the storer maximal value that is stored in storer 45 is 25, and up-to-date measuring value is a storer numbering 01, and the storer numbering is sorted to old measuring value by new measuring value successively backward.When general modfel (state that shows " generally " mark), reach more than 2 seconds by storage button 36 for a long time, the up-to-date measuring value (storer numbering 01) that is recorded in storer is shown on the LCD.It constitutes, and under this state, shows " storer 01 " in the LCD 31 and when glimmering, whenever can demonstrate previous measuring value by once transmitting button 37.Constitute again, can carry out the quick transmission of storer numbering by transmitting button 37 for a long time.In addition, memory mode can carry out through pressing startup button 33 to the conversion of general modfel.

When display-memory is numbered in aforesaid operations, stop flicker if press 36 storeies numberings of storage button once more, the numbering of sensor module 22 and circle figure can glimmer.Whenever by once transmitting the measuring value that button 37 can show each sensor module 22 in regular turn.In addition, under the power switch closed condition, as press " storage button " power-on switch 35 simultaneously, just can eliminate the data that are stored in the storer 45 fully.

In addition; Though terms such as power switch, startup button, guiding button, storage button, transmission button are arranged in claims, above-mentioned embodiment; But these are the titles that are used for functions, and are not limited only to these titles, and the present invention also comprises and is used to carry out the title with generic operation.

Utilizability on the industry

Be to explain to pressing between measurement patient and the bedding to press method for measurement in the above-mentioned embodiment, but be not limited thereto, also can measure pressing between other object and the object.For instance, when on tabular surface, placing some object, in sandwich between it press sensor also can carry out the center of gravity position measurement, or survey whether be level etc.

Claims

1. one kind presses method for measurement; It is one to press the method for measurement of measuring equipment; This formation that presses measuring equipment possesses and has: press sensor, it possesses inner enclose air and when pushing, can apply the sensor module of air pressure via the pipe fitting that is linked to the outside; Said sensor module has one at central portion, and around the sensor module of this central portion, has a plurality of with concentric circles; And body; Its connection presses sensor; This body has power switch, is set as the startup button of general modfel, is set as guiding button, storage button, the storer and the LCD of guided mode and connects the aforementioned sensor that presses, and under power opening state, this schematic appearance that presses sensor can be shown on the LCD; And apply when pressing pressing sensor; Can show that accordingly each presses, and is characterized in that with the configuration status of aforementioned each sensor module on the aforementioned schematic appearance

When measurement presses; At first will press sensor clip between the object that measurement sites and this measurement sites contacted; After opening the aforementioned power source switch, open aforementioned guiding button, make be applied to pressing of each sensor module be shown on the foregoing liquid crystal display with aforementioned schematic appearance on the pairing display position of configuration status of aforementioned each sensor module; Then move the aforementioned sensor that presses; So that the maximum sensor module that presses of expression becomes the sensor module that is positioned at the central portion on the aforementioned schematic appearance, open the startup button subsequently, measure the maximal value that presses that is applied to the sensor module that is positioned at this central portion thus.

2. the method for measurement that presses according to claim 1; It is characterized in that, measure and to be applied to pressing of aforementioned sensor components, after the maximal value that presses that then is in application to this sensor module is confirmed; Open aforementioned storage button; Thus with this value storage in aforementioned memory, subsequently, open aforementioned startup button and measure and press.

3. the method for measurement that presses according to claim 1; It is characterized in that; For a long time by aforementioned startup button and with its unlatching; Measure pressing of aforementioned each sensor module that presses sensor in regular turn with set interval thus, this measurement be shown on the foregoing liquid crystal display with figure and numerical value, can pick out be applied to aforementioned each sensor module press last variation.