CN202105128U - High-precision weighing device for medical suspension bed - Google Patents
High-precision weighing device for medical suspension bed Download PDFInfo
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- CN202105128U CN202105128U CN2011202150664U CN201120215066U CN202105128U CN 202105128 U CN202105128 U CN 202105128U CN 2011202150664 U CN2011202150664 U CN 2011202150664U CN 201120215066 U CN201120215066 U CN 201120215066U CN 202105128 U CN202105128 U CN 202105128U
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Abstract
The utility model relates to a medical pneumatic particle suspension bed, aiming at providing a high-precision weighing device for a medical suspension bed, which can reduce weighing error. The high-precision weighing device comprises a groove body, a weighing table, a bracket, four weighing sensors and a CPU (central processing unit) intelligentized weighing display instrument, wherein the groove body is positioned at the upper part of the weighing table; the four weighing sensors are arranged between the bracket and the weighing table, are used for bearing the weights of the weighing table, the groove body and the patient, and are all electrically connected with the CPU intelligentized weighing display instrument by circuits, and a CPU in the CPU intelligentized weighing display instrument processes every pressure signal sent by each weighing sensor independently and digitizes the analog quantity respectively. The high-precision weighing device for a medical suspension bed can be used for weighing the patient, with the precision achieving two-ten thousandths or even higher, thus meeting the medical treatment requirement.
Description
Technical field
This utility model relates to a kind of medical aerodynamic particle suspension bed, particularly relates to a kind of medical suspension bed high-precision weighing device.
Background technology
Medical aerodynamic particle suspension bed is a kind of new medical sick bed, is widely used in the many fields of medical science, like burn, Intensive Care Therapy, wound, department of dermatologry, paralysis, surgical plastic, tumor, rehabilitation presbyatrics, intensive treatment etc.An its outer appearance big bathtub, what put in the cylinder is not water, but very thin granule forms grain bed.About 30 centimetres of particulate packed height has a gas-pervious porous plate in granule bottom, and it is evenly distributed compressed air.When upwards flowing through fine grained through filtering compressed air, granule can be mobile as water, can produce sizable buoyancy, is enough to make patient to swim on the mobile granule.Because this bed leans on pneumatic and granule suspends patient, so be called the aerodynamic particle suspension bed, is commonly called as " casting bed ".
When patient swims on the mobile granule; Human body and particulate contact area are sizable, and the pressure on the unit contact area is very little, will increase the blood flow of human body skin contact site like this; Improve the nutrition of skin surface and tissue, accelerate the growth healing of skin and tissue.Injured skin surface and tissue have reduced pressure, will reduce patient's pain, make patient feel comfortable.When patient swam on the mobile granule, there be not the dead angle in human body and particulate contact surface, an amount of clean air human body surface of flowing through, and the secretions of wound can flow in the bed, has greatly improved the situation of wound surface, helps the healing of wound.The patient of long-term bed very easily gives birth to decubital ulcer, and decubital ulcer can be brought very big misery to patient.If patient lies on the suspension bed, the air of circulation and softish support not only can not make patient give birth to decubital ulcer, and can also treat decubital ulcer.
When the critical patient lies in medical suspension bed last time when receiving treatment, patient's body weight and body weight change are important medical data.The doctor is according to patient's body weight change, the quantity of confirming to keep the skin wet and the formulation of therapeutic scheme.Yet existing medical suspension bed weighing device general precision is all lower, and error is usually more than 1 kilogram.Medical suspension bed weighing device need be weighed bed body and particulate weight when the weighing patient body weight with patient.Because bed body and particulate weight are approximately 650 kilograms, " tare weight " is just very heavy, if according to 115 kilograms of calculating of maximum suspending power of suspension bed, then weighing device need be claimed 765 kilograms weight.Consider that weighing device can not use by full and down, also leave weighing leeway with needing.So when the design weighing device, generally selecting range is 1000 kilograms to 1200 kilograms.If according to range is 1000 kilograms of calculating, weighing error is 0.5 kilogram, and then the precision of suspension bed weighing device need reach 5/10000ths, and this specification requirement is very high.
Existing suspension bed weighing device adopts four pressure transducers, using after the output signal parallel connection of four pressure transducers, does not reach the requirement of high accuracy weighing patient body weight at all.This is because the load pressure of every pressure transducer and the relation of output voltage are not in full accord.After four pressure transducer parallel connection uses, error is increased.
The utility model content
For solving the problems of the technologies described above, this utility model provides a kind of medical suspension bed high-precision weighing device that reduces weighting error.
The medical suspension bed high-precision weighing device of this utility model; Comprise cell body, weighting platform, support, four LOAD CELLSs and the intelligent weighting display instrument of CPU; Said cell body is positioned at the top of weighting platform; Four LOAD CELLSs are installed between support and the weighting platform and are used for bearing weighing platform, cell body and patient's weight; Four LOAD CELLSs all are electrically connected with the intelligent weighting display instrument of said CPU through circuit, and the pressure signal that the CPU in the intelligent weighting display instrument of said CPU sends here each LOAD CELLS carries out individual processing, respectively the analog quantity digitized.
The medical suspension bed high-precision weighing device of this utility model, each LOAD CELLS be power supply separately all.
The medical suspension bed high-precision weighing device of this utility model, the CPU in the intelligent weighting display instrument of the said CPU digitized signal after to each pressure transducer analog quantity digitized is carried out pressure measxurement and demarcation respectively.
The medical suspension bed high-precision weighing device of this utility model was selected for use 8 o'clock to 15 o'clock in the timing signal time period, and with pressure display value and measured value input instrument, the CPU of instrument revises data according to curve method.
The medical suspension bed high-precision weighing device of this utility model, said LOAD CELLS is a pressure transducer, the supply voltage of this LOAD CELLS is 12V.
The medical suspension bed high-precision weighing device of this utility model, the bottom of said support is provided with roller.
The medical suspension bed high-precision weighing device of this utility model, said weighting platform is the steel construction weighing platform.
Compared with prior art the beneficial effect of this utility model is: this device is made up of the steel construction weighing platform of brand-new design, high-precision LOAD CELLS, high accuracy transmitter, the intelligent weighting display instrument of CPU, and four high-precision LOAD CELLSs bear steel construction weighing platform, cell body and patient's weight, and each pressure transducer is supplied power separately; The pressure signal that instrument is sent here each pressure transducer carries out individual processing; The analog quantity digitized, the digitized signal of each pressure transducer is measured respectively and demarcated respectively, adopted 8 o'clock to 15 o'clock at timing signal; With pressure display value and measured value input instrument; The CPU of instrument revises data according to curve method, like this, carries out additive operation to the measurement result of four LOAD CELLSs; Instrument can show the measurement result of each LOAD CELLS; The measurement summation that also can show four LOAD CELLSs, the error of four pressure transducer sums is 1/1.41 of each LOAD CELLS error in theory, promptly 0.7; If the employing precision is 5/10000ths LOAD CELLS; And the precision of changer is enough high, and then the precision of four LOAD CELLS sums can reach 3/10000ths. five, and the error of patient body weight can reach 0.3 kilogram.
The medical suspension bed high-precision weighing device of this utility model can be measured patient body weight, and precision reaches 2/10000ths even higher, has satisfied medical needs.
Description of drawings
Fig. 1 is the structure chart of the medical suspension bed high-precision weighing device of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of this utility model is described in further detail.Following examples are used to explain this utility model, but are not used for limiting the scope of this utility model.
As shown in Figure 1; A kind of medical suspension bed high-precision weighing device; Comprise cell body 1, steel construction weighing platform 2, support 4, four LOAD CELLSs 3 and the intelligent weighting display instruments 6 of CPU, the bottom of support 4 is provided with roller 5, and cell body 1 is positioned at the top of steel construction weighing platform 2; Four LOAD CELLSs 3 are installed between support 4 and the steel construction weighing platform 2 and are used for bearing weighing platform 2, cell body 1 and patient's weight; Four LOAD CELLSs 3 all are electrically connected with the intelligent weighting display instrument 6 of CPU through circuit, and the pressure signal that the CPU in the intelligent weighting display instrument 6 of CPU sends here each LOAD CELLS 3 carries out individual processing, respectively the analog quantity digitized.Each LOAD CELLS 3 is power supply separately all, and the digitized signal of the CPU in the intelligent weighting display instrument 6 of CPU after to each pressure transducer analog quantity digitized carried out pressure measxurement and demarcation respectively.
This utility model is made up of steel construction weighing platform 2, high-precision LOAD CELLS 3 and the intelligent weighting display instrument 6 of brand-new design, in addition, uses four LOAD CELLSs 3 of power supply separately; Supply voltage is 12V, and the pressure signal that each pressure transducer is sent here carries out individual processing, respectively the analog quantity digitized; Digitized signal to each pressure transducer is carried out pressure measxurement and demarcation respectively, adopts 8 o'clock to 15 o'clock at timing signal, with pressure display value and measured value input instrument; The CPU of instrument revises data according to curve method; Like this, carry out additive operation to the measurement result of four LOAD CELLSs 3, instrument can show the measurement result of each LOAD CELLS 3; The measurement summation that also can show four LOAD CELLSs 3; The error of four pressure transducer sums is 1/1.41 of each LOAD CELLS 3 error in theory, promptly 0.7, and be 5/10000ths LOAD CELLS if adopt precision; And the precision of changer is enough high, and then the precision of four LOAD CELLS sums can reach 3/10000ths. five.The error of patient body weight can reach 0.3 kilogram.
The above only is the preferred implementation of this utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of this utility model.
Claims (7)
1. medical suspension bed high-precision weighing device; Comprise cell body, weighting platform, support, four LOAD CELLSs and the intelligent weighting display instrument of CPU; Said cell body is positioned at the top of weighting platform; Four LOAD CELLSs are installed between support and the weighting platform and are used for bearing weighing platform, cell body and patient's weight; It is characterized in that: four LOAD CELLSs all are electrically connected with the intelligent weighting display instrument of said CPU through circuit, and the pressure signal that the CPU in the intelligent weighting display instrument of said CPU sends here each LOAD CELLS carries out individual processing, respectively the analog quantity digitized.
2. medical suspension bed high-precision weighing device according to claim 1 is characterized in that: each LOAD CELLS is power supply separately all.
3. medical suspension bed high-precision weighing device according to claim 1 is characterized in that: the digitized signal of the CPU in the intelligent weighting display instrument of said CPU after to each LOAD CELLS analog quantity digitized carried out pressure measxurement and demarcation respectively.
4. medical suspension bed high-precision weighing device according to claim 3 is characterized in that: selected for use 8 o'clock to 15 o'clock in the timing signal time period, with pressure display value and measured value input instrument, the CPU of instrument revises data according to curve method.
5. according to claim 2 or 3 described medical suspension bed high-precision weighing devices, it is characterized in that: said LOAD CELLS is a pressure transducer, and the supply voltage of this LOAD CELLS is 12V.
6. medical suspension bed high-precision weighing device according to claim 1, it is characterized in that: the bottom of said support is provided with roller.
7. medical suspension bed high-precision weighing device according to claim 5 is characterized in that: said weighting platform is the steel construction weighing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150664U CN202105128U (en) | 2011-06-23 | 2011-06-23 | High-precision weighing device for medical suspension bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150664U CN202105128U (en) | 2011-06-23 | 2011-06-23 | High-precision weighing device for medical suspension bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202105128U true CN202105128U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202150664U Expired - Fee Related CN202105128U (en) | 2011-06-23 | 2011-06-23 | High-precision weighing device for medical suspension bed |
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| Country | Link |
|---|---|
| CN (1) | CN202105128U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697990A (en) * | 2013-12-21 | 2014-04-02 | 常熟市意欧仪器仪表有限公司 | Scale |
| CN103697989A (en) * | 2013-12-21 | 2014-04-02 | 常熟市意欧仪器仪表有限公司 | Electronic analytical balance |
| CN108472187A (en) * | 2016-12-20 | 2018-08-31 | 测量用具有限公司 | Scale system and method |
| CN110200763A (en) * | 2019-04-26 | 2019-09-06 | 浙江大学 | A kind of medical suspension bed weighing system and method |
| CN112985564A (en) * | 2021-02-05 | 2021-06-18 | 安玖医疗器械(苏州)有限公司 | Method for weighing object on inflatable mattress |
-
2011
- 2011-06-23 CN CN2011202150664U patent/CN202105128U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697990A (en) * | 2013-12-21 | 2014-04-02 | 常熟市意欧仪器仪表有限公司 | Scale |
| CN103697989A (en) * | 2013-12-21 | 2014-04-02 | 常熟市意欧仪器仪表有限公司 | Electronic analytical balance |
| CN108472187A (en) * | 2016-12-20 | 2018-08-31 | 测量用具有限公司 | Scale system and method |
| CN110200763A (en) * | 2019-04-26 | 2019-09-06 | 浙江大学 | A kind of medical suspension bed weighing system and method |
| CN112985564A (en) * | 2021-02-05 | 2021-06-18 | 安玖医疗器械(苏州)有限公司 | Method for weighing object on inflatable mattress |
| CN112985564B (en) * | 2021-02-05 | 2022-11-18 | 安玖医疗器械(苏州)有限公司 | Method for weighing object on inflatable mattress |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140623 |
|
| EXPY | Termination of patent right or utility model |