Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of new hospital bed devices, comprising:
Bed board comprising at least one height-adjustable cell, it is mutually indepedent between the cell；At least oneSensor unit is used to measure parameter relevant to the pressure being applied on the cell；At least one driving unit,For adjusting the height of the cell, and, control unit, input terminal is connect with the sensor unit, output end withThe driving unit connection, adjusts the cell for the driving unit according to the state modulator that sensor unit measuresHighly, so that bed board is formed and the consistent shape of patient body position, and the elevation information of the cell after adjusting is saved.
Further, described control unit is also used to the elevation information according to cell corresponding with patient, control drivingUnit adjusts the height of the cell, so that the height of the cell is identical as the height of preservation.
Optionally, the driving unit includes encoder, and the encoder is used to obtain the elevation information of corresponding unit lattice.
Optionally, the cell is grid, and the side size range of the grid is 0.5cm~3cm.
Optionally, the cell size of the bed board surrounding is bigger than the cell size among bed board.
Optionally, the sensor unit is pressure sensor.
Optionally, the pressure sensor is arranged in the upper surface of the cell.
Optionally, the driving unit is motor or jack.
Optionally, the upper surface of the cell is the cambered surface of protrusion.
Optionally, the hospital bed device further includes shell, and the bed board, sensor unit and driving unit are arranged at instituteIt states in shell.
It is corresponding, the method that patient puts position is recorded by hospital bed device the present invention also provides a kind of, comprising:
Patient is placed on the bed board of the hospital bed device, the bed board includes at least one height-adjustable unitLattice；
The pressure signal on the cell is detected by least one sensor unit；
Driving unit mobile unit lattice are controlled according to the pressure signal；
The elevation information of cell after saving movement.
Optionally, the elevation information of corresponding unit lattice is obtained by the encoder of driving unit.
Optionally, judge whether the pressure signal value of sensor unit detection tends towards stability, if so, stopping mobile unitLattice, and the elevation information of the cell after movement is saved, if it is not, then continuing to move to cell.
Optionally, judge whether the cell at maximum pressure moves to maximum stroke, if so, stopping mobile allCell, and the elevation information of the cell after movement is saved, if it is not, then continuing to move to cell.
Corresponding, the present invention also provides a kind of methods for realizing patient's repeated positioning by hospital bed device, comprising:
The elevation information of cell corresponding with patient is obtained,
Control driving unit mobile unit lattice to the consistent height of the elevation information of acquisition.
Compared with the prior art, hospital bed device of the invention has the effect that
1, using the Memorability of hospital bed, the pendulum position information of patient is converted into the elevation information of cell, and carry out numberChange storage, to realize that patient puts the repeatability of position；
2, using the adaptivity of hospital bed, so that the hospital bed device is suitable for different patients, consolidating using auxiliary is not neededDetermine device, on the one hand, reduce consumptive material, on the other hand save the cost avoids the fixation device of auxiliary from making the course for the treatment of of radiotherapyAt uncertain influence；
3, by adjusting the height of each unit block, the inclination of patient is realized.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all itsHis embodiment, shall fall within the protection scope of the present invention.
Fig. 1 (a), 1 (b) and Fig. 2 diagrammatically illustrate the hospital bed device in the embodiment of the present invention.The hospital bed device can be withThe pendulum position of adaptive difference patient, and there is Memorability, the repeatability that the same patient puts position may be implemented.
With reference to shown in Fig. 1 (a), which includes bed board 2, and the bed board 2 includes that at least one is height-adjustableCell 21 can be moved independently of each other between each cell 21；By taking one of cell as an example, with reference to Fig. 1 (b) instituteShow, the placement sensor unit 3 on cell 21, the relevant ginseng of the pressure for measuring to being applied on the cell 21Number；In addition, hospital bed device 1 further includes at least one driving unit 4, it is arranged to adjust the height of the cell 21；In addition,Hospital bed device 1 further includes control unit 5, is arranged to control the height that the driving unit 4 adjusts the cell 21, so thatBed board 2 is formed and the consistent shape of patient body position, and saves the elevation information of the cell 21 after adjusting.In the present embodiment,The corresponding sensor unit 3 of each cell 21 and driving unit 4, all sensor units 3 and driving unit 4 connectTo common control unit 5；Certainly, in other embodiments, there can also be more than one control unit 5, respectively control sectionSensor unit 3 and corresponding driving unit 4.
Bed board 2 is made of multiple mutually independent cells 21, and the height of each cell 21 can be independently adjustable.In the present embodiment, cell 21 is grid, and each grid is a column, and all cells 21 are arranged together composition bedPlate 2, the face that cell 21 is used to carry patient are known as upper surface, and the upper surface of all cells 21 constitutes bed surface.It is treated at oneWhen Cheng Zhong, patient per's radiotherapy or imaging, according to the elevation information of the cell 21 of preservation, each cell 21 is adjustedTo with identical height before, so that bed surface shape identical with radiotherapy before or while being imaged is formed, for instructing patientPosition is put, i.e. patient lies on the bed surface of specific shape, to realize pendulum position as before.
For different patients, what the height formation by adjusting each cell 21 was adapted from the pendulum position of different patientsBed surface shape saves the elevation information of the cell 21 after adjusting, and associated with corresponding patient information, without additionalUsing the fixation device of auxiliary, that is, it is suitable for the pendulum position of different patients；When need again to some patient carry out radiotherapy orWhen imaging, it is only necessary to recall the elevation information of cell 21 corresponding with the patient, and each cell 21 is adjusted to protectingThe identical height of the information deposited, i.e., the repeatable pendulum position for realizing the patient.
In the present embodiment, sensor unit 3 is pressure sensor, and patient can be applied on cell by being arranged inThe position that pressure measures, it is preferable that sensor unit 3 is arranged in the upper surface of each cell 21, under cell 21Surface connects driving unit 4, and in the present embodiment, driving unit 4 is stepper motor, when patient lies on bed board 2, at least portionSub-sensor unit 3 detects pressure, and pressure signal is converted into electric signal transmission to control unit 5,5 basis of control unitThe sensor signal received controls corresponding stepper motor 4 and works, so that control unit lattice 21 are mobile.
It specifically please refers to shown in Fig. 2, bed board 2 includes n cell 21, is respectively provided with one on the upper surface of each cell 21A pressure sensor 31,32 ..., 3n, the output end of lower surface connection stepper motor, stepper motor support unit lattice 21, so thatThe pressure that cell 21 will not apply by self gravity or patient due to, move, and pressure sensor and stepper motor are and control unitIt connects (not showing on stepper motor and control unit Fig. 2).When patient lies on bed board 2, pressure can be applied to bed board 2, with troubleThe pressure sensor of person's contact detects patient's different parts corresponding pressure value and by different pressure signal transmissions to controlUnit, control unit start stepper motor according to the pressure signal received, the cell 21 being oppressed are moved up, pressure is worked asAfter the pressure value variable quantity that force sensor measuring obtains tends towards stability, then it is assumed that bed board 2 is posted with patient.When pressure passesThe pressure value variable quantity that sensor measurement obtains is smaller, such as pressure value variable quantity is less than the 20% of measured value, that is, thinks pressure valueIt tends towards stability, naturally it is also possible to be arranged other standards judge to facilitate whether pressure value tends towards stability for variable quantity.
After bed board 2 and patient post, bed board 2 is formed and the consistent shape of patient body position, that is to say, that patient'sPosition information is converted into the elevation information of each cell 21, passes through the available each cell of the encoder of stepper motorThe height of rising forms bed surface matrix information, which can be digitally controlled and be stored, and with the patientInformation is associated.In a course for the treatment of, when the patient carries out radiotherapy or imaging again, it is only necessary to call and patient coupleThe bed surface matrix information answered is adjusted cell to corresponding height according to the bed surface matrix information, to be formed and be put beforeIdentical bed surface shape, patient when treatment or imaging is penetrated to lie in the specific bed surface for adjusting and being formed in shape, referred to the bed surface shapeIt leads patient and puts position, to realize pendulum position as before.
In the present embodiment, realize that the accuracy of pendulum position repeatability depends on the size of cell 21, size is smaller, then bedThe body fit of face and patient it is better, then bed surface matrix information may include more patient body position's information, on the contrary, cell21 size is bigger, then the body fit of bed surface and patient obtain defective tightness, and leading to bed surface matrix information includes less patientPosition information.Therefore, the size of cell 21 is smaller, and the similarity that each patient puts position is bigger, but if the ruler of cell 21Very little too small, then leading to bed board 2, structure is complicated, causes other unnecessary problems, such as increases the complexity of hardware, controlComplexity etc..It is therefore preferable that for cell 21 be arranged it is suitably sized, such as setting unit lattice 21 side size range be 0.5cm~3cm.
In view of the probability that the intermediate region of bed board 2 is usually contacted with patient body is bigger, and the center of gravity of patient would generallyIntermediate region in bed board 2, and the probability that the peripheral regions of bed board 2 are contacted with patient body is smaller, and the center of gravity of patient is logicalPeripheral regions often are not at, therefore the size that can set the cell 21 of intermediate region is smaller, to improve repeated positioningAccuracy, set the relatively large sized of the cell 21 of peripheral regions, to pendulum position accuracy influence it is smaller.Preferably,The side size range of the cell 21 of intermediate region is 0.5cm~2cm, and the side size range of the cell 21 of peripheral regions is 1.5cm~3cm；It is highly preferred that the cell 21 of intermediate region is dimensioned to 1.5cm*1.5cm, the cell 21 of peripheral regionsIt is dimensioned to 3cm*3cm.
In the present embodiment, the position information of patient, therefore, usual situation are recorded by adjusting the height of cell 21Under, the height of cell 21 is not exactly the same, when there is difference in height between adjacent cells lattice 21, due to the edge meeting of columnCause patient uncomfortable.And guarantee that patient helps to realize the repeatability of pendulum position with relatively comfortable posture, therefore one in clinicAs can consider put pose gesture whether be accustomed to patient.For the ease of being better contacted with patient, and allow patient keep compared withComfortable posture, in the fig. 3 embodiment, the upper surface of cell 21 ' has certain radian, further, cell 21 'Upper surface be protrusion arc, when patient lies on bed board, patient body is contacted with the curved surfaces of cell 21 ', i.e.,Make difference in height occur between adjacent cells lattice 21 ', it will not be due to the discomfort for staggeredly causing patient up and down of cell 21 '.
Bed board 2 selects different materials, and the influence to therapeutic dose is also different, for example, bed board 2 can for carbon fiber bed board,Organic glass bed board or plastics bed board, the influence due to carbon fiber to dosage is minimum, can ignore, and therefore, bed board 2 is preferably carbonFiber bed board, i.e. cell 21 are carbon fibre material.
In the present embodiment, the height of each cell 21 can be independently adjustable, by adjusting each cell 21Height, to realize inclination to patient.
Specifically, unit lattice 21 are increased, unit lattice 21 decline, so that the total bodily form in the upper surface of cell 21It,, can be with by increasing or declining different distances for different cells to realize the inclination of bed board 2 at inclined bed surfaceRealize that bed board 2 tilts different size of angle in different directions.
Further, hospital bed 1 can also include shell and pedestal, and the bed board 2, sensor unit 3 and driving unit 4 are all provided withIt sets in the shell, the shell is supported on the pedestal, by horizontally or vertically moving the shell, realizes bed board 2Whole translation or lifting realizes the integral inclined of bed board 2 by tilting the shell.Certainly, shell may be other etc.Alternative structure, such as support plate are imitated, the bed board 2, sensor unit 3 and driving unit 4 are arranged on support plate, lead toIt crosses and moves the support plate, realize the whole movement of bed board 2.
Hospital bed device 1 in the present embodiment in use, adjusts the height of each cell 21 first, so that being formedSmooth bed surface adjusts the height of each cell 21, so that each arc when the upper surface of cell 21 is the cambered surface of protrusionThe highest point in face forms smooth bed surface, and the height for recording bed board 2 at this time is the first height；It is needed to patient by radiotherapyAfter posture is lain, according to the pressure information that the sensor unit 3 arranged on each cell 21 detects, control unit 5 is controlledStepper motor operating, so that the pressure that cell 21 is detected according to sensor unit 3 increases to some extent；In confirmation patientAfter posting with bed surface, control unit 5 controls stepper motor and shuts down, and the elevation information of each cell 21 forms bed at this timeFace matrix information, control unit 5 saves the bed surface matrix information, and is associated with patient information；In the treatment of a radiotherapyCheng Zhong calls the bed surface matrix information, and be moved to cell 21 according to the bed surface matrix information when putting position to patient every timeIdentical height before specifically can adjust the height of each cell 21 first, so that forming smooth bed surface, thenBed board 2 is risen into first height, adjusts cell to corresponding height, to restore further according to bed surface matrix informationPosition information before patient, and pendulum position is carried out using information guiding patient, realize that patient puts the repeatability of position.
In the above-described embodiments, driving unit 4 is stepper motor, and in other embodiments, driving unit 4 can be otherDevice, such as jack.When driving unit 4 be jack when, can in the way of being introduced in embodiment as above control unitLattice 21 increase, and control unit lattice 21 can also decline as follows.
Support construction of the jack as cell 21, after patient lies according to the posture that radiotherapy needs, patientWeight in the tolerance range of jack, at this time cell will not because patient apply pressure due to decline, according to sensor listThe pressure information that member 3 detects, the support force for the cell 21 that release jack pair is oppressed, so that cell 21 is applied in patientThe lower slowly decline of the pressure effect added, the pressure that patient applies each unit lattice is different, and pressure is larger, corresponding cell declineIt obtains comparatively fast, therefore, under the action of patient weight, each unit lattice decline the bed surface to be formed and be consistent with patient body position, work as maximumCell 21 at pressure moves to maximum stroke, then it is assumed that bed board 2 is posted with patient, and it is all to restore jack pair at this timeThe support force of cell, so that cell 21 will not move under the pressure of patient.The range of cell 21 canTo be set according to the body thickness of patient, such as the body thickness of patient is 30cm, and the lifting of cell 21 can be setRange is ± 15cm, that is, the range gone up and down is 15cm.
After bed board 2 and patient post, bed board 2 is formed and the consistent bed surface shape of patient body position, utilizes encoderIt obtaining the elevation information of each cell 21, forms bed surface matrix information, control unit 5 saves the bed surface matrix information, and withPatient information is associated with；In the course for the treatment of of a radiotherapy, when putting position to patient every time, the bed surface matrix information is called, andIdentical height before being moved to cell 21 according to the bed surface matrix information, thus the position information before restoring patient,And pendulum position is carried out using information guiding patient, realize that patient puts the repeatability of position.
In this embodiment, embodiment before other technical details can refer to.
In a specific embodiment of the invention, the relative distance risen or fallen using encoder measuring unit lattice,It, can be with the absolute altitude information of measuring unit lattice, in protection scope of the present invention by the prior art in other embodimentWithin.
In an embodiment of the present invention, support construction of the driving device as cell, it is desirable that the weight of patient is drivingIn the tolerance range of device, it otherwise on the one hand will lead to the inaccuracy of pendulum position, on the other hand can even damage device.
Accordingly, the method that patient puts position is recorded by hospital bed device the present invention also provides a kind of, comprising: set patientIn on the bed board of the hospital bed device, the bed board includes at least one height-adjustable cell；It is passed by least oneSensor cell detects the pressure signal on the cell；It is moved according to the pressure signal control driving unit of sensor unit detectionMoving cell lattice；The elevation information of cell after saving movement.
In one embodiment, the method that patient puts position should be recorded by hospital bed device further includes the coding by driving unitThe elevation information of device acquisition corresponding unit lattice.
In one embodiment, the method that patient puts position should be recorded by hospital bed device further includes judging that sensor unit detectsPressure signal value whether tend towards stability, if so, stop mobile unit lattice, and save it is mobile after cell height letterBreath, if it is not, then continuing to move to cell until pressure signal value tends towards stability.
In another embodiment, should record the method that patient puts position by hospital bed device further includes judging at maximum pressureWhether cell moves to maximum stroke, if so, stopping mobile all cells, and saves the height of the cell after movementInformation is spent, if it is not, then continuing to move to cell until whether the cell at maximum pressure moves to maximum stroke.
Accordingly, the present invention also provides a kind of methods for realizing patient's repeated positioning by hospital bed device, comprising: obtainsThe elevation information of cell corresponding with patient, control driving unit mobile unit lattice to the consistent height of the elevation information of acquisitionDegree.Restored the position information before patient by this method, put position again using information guiding patient, as far as possible realize withIdentical pendulum position before.
Particular technique details is referred to the aforementioned specific descriptions to hospital bed device.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the artFor, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered asProtection scope of the present invention.