CN104739613B - A kind of sick bed and Medical Devices - Google Patents
A kind of sick bed and Medical Devices Download PDFInfo
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- CN104739613B CN104739613B CN201310750855.1A CN201310750855A CN104739613B CN 104739613 B CN104739613 B CN 104739613B CN 201310750855 A CN201310750855 A CN 201310750855A CN 104739613 B CN104739613 B CN 104739613B
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- sick bed
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Abstract
The present invention provides a kind of sick bed and Medical Devices.The sick bed includes a bed board, a drive mechanism, a supporting mechanism and a lockable mechanism, wherein, the supporting mechanism is used to support the bed board, and the drive mechanism is used to drive the motion of the bed board, and the lockable mechanism is used in supporting mechanism described in a specific location locking.Sick bed according to a particular embodiment of the invention solves the problems, such as to keep sick bed height and stabilization, especially solve the problems, such as that sick bed height reduction or position are unstable caused by fluid leakage in Hydraulically Operated Equipment, and it also avoid also bringing along extra mechanical resistance while leakage is blocked using seal member or mechanism and reducing the problem of efficiency, also just in the absence of the problem that manufacturing cost and difficulty of processing are significantly increased using seal member.
Description
Technical field
The present invention relates to Medical Devices, especially magnetic resonance imaging system, and in particular to a kind of disease for Medical Devices
Bed.
Background technology
For magnetic resonance imaging (MRI, Magnetic Resonance Imaging) equipment, computed tomography (CT,
Computed Tomography) for the medical examination apparatus such as equipment, patient's examination couch (PTAB, Patient Table) is it
The part of core.
Fig. 1 is the schematic diagram of the sick bed according to prior art.(alternatively referred to as examination couch, inspection desk as shown in figure 1, sick bed
Deng) basic function be to carry or support (vertical direction V) patient/patient, and patient/patient's movement (horizontal direction H) is arrived
Predetermined inspection position, including bed board 101, drive mechanism 102 and supporting mechanism 103.Bed board 101 can be moved downwardly to one
Individual lower height so that patient easily upper can also move upward to a high height to bed surface, so as to patient be moved
To imaging center, this vertical movement (direction V) can also drive bed board 101 to drive supporting mechanism simultaneously by drive mechanism 102
103 realize, it is also possible to drive supporting mechanism 103 to drive bed board 101 to realize simultaneously by drive mechanism 102.Wherein, supporting mechanism
103 can realize by the way that bar linkage structure or scissor structure are (as shown in Figure 1).
In the prior art, Hydraulically Operated Equipment is increasingly being used in the up and down motion of sick bed, especially magnetic resonance
The sick bed of imaging system, can so make full use of the efficient advantage of Hydraulically Operated Equipment, therefore without Mechanical Driven equipment institute
The high-energy source input for needing.Fig. 2 is the schematic diagram of the piston of the Hydraulically Operated Equipment of the sick bed according to prior art.As shown in Fig. 2
Hydraulically Operated Equipment also has the shortcomings that its own is difficult to avoid that：The pressure that Hydraulically Operated Equipment is produced using liquid (for example, oil)
And work, therefore liquid also just can be leaked to area of low pressure, and seal member or machine by piston or valve from high-pressure area
Structure can only also mitigate without being avoided that such situation.
The problem that disadvantages mentioned above is directly resulted in is that while to reveal very little, but cannot still be kept using rear sick bed for a long time
Its calibrated altitude.If the height reduction of sick bed, then can produce friction with sweep mechanism when sick bed enters sweep mechanism.
And, although above-mentioned situation can be mitigated using seal member or mechanism, but, seal member or mechanism are in the same of closure leakage
When also bring along extra mechanical resistance and reduce efficiency, in addition, seal member can also be significantly increased manufacturing cost and processing
Difficulty.
The content of the invention
For above-mentioned technical problem, the purpose of the embodiment of the present invention is to provide a kind of sick bed, and the sick bed includes one
Plate, a drive mechanism, a supporting mechanism and a lockable mechanism, wherein, the supporting mechanism is used to support the bed board, the drive
Motivation structure is used to drive the motion of the bed board, and the lockable mechanism is used in supporting mechanism described in a specific location locking.
Preferably, the drive mechanism is additionally operable to the motion for driving the lockable mechanism to unlock the bed board.
Preferably, the driving force needed for the drive mechanism drives the motion of the bed board is unlocked more than the lockable mechanism
Driving force needed for the motion of the bed board.
Preferably, the lockable mechanism includes a locking driver part and a unblock driver part, and the drive mechanism is also
For driving the lockable mechanism by providing driving force to the unblock driver part, wherein the unblock driver part
When driving force is more than the driving force of the locking driver part, the lockable mechanism unlocks the motion of the bed board.
Preferably, the locking driver part is a spring, and the unblock driver part is a piston, the lockable mechanism
Also include a cylinder body, a push rod and an orifice, wherein, the push rod include a first end and one second end, the first end with
The piston connection, the spring is oppositely arranged in the cylinder body with the piston, and the orifice is matched with second end.
Preferably, the supporting mechanism is a scissor structure, and the orifice is respectively positioned at two of the scissor structure
Two through holes on scissor；When the supporting mechanism is in the ad-hoc location, two through holes overlap.
Preferably, the supporting mechanism is a bar linkage structure, and the orifice is respectively positioned at two of the bar linkage structure
Two pin-and-holes on connecting rod；When the supporting mechanism is in the ad-hoc location, two pin-and-hole connections.
Preferably, the bidirectional drive includes that one drives body, a reversal valve and a control unit, the driving body
The bed board is driven by the reversal valve, the driving body directly drives the lockable mechanism, described control unit according to
Instruction the control reversal valve and the driving body.
Preferably, the drive mechanism is a hydraulic unit driver, a motor driver or an electro-hydraulic driver.
Preferably, the bed board is moved between a first position and a second place, and the ad-hoc location includes described
First position and/or the second place.
Preferably, the first position is the highest order of the bed board, and the second place is the lowest order of the bed board.
The purpose of the embodiment of the present invention is to provide a kind of magnetic resonance imaging system, including as above any described sick bed.
Sick bed according to a particular embodiment of the invention solves the problems, such as to keep sick bed height and stabilization, especially solves
The unstable problem of sick bed height reduction or position caused by fluid leakage in Hydraulically Operated Equipment, and it also avoid using
Seal member or mechanism also bring along extra mechanical resistance and reduce the problem of efficiency while leakage is blocked, also just not
There is a problem of that manufacturing cost and difficulty of processing is significantly increased using seal member.Therefore, it is of the invention according to the present invention
The sick bed of specific embodiment can for a long time keep stabilization and position, and extra mechanical resistance will not be produced to ensure that sick bed is transported
Dynamic efficiency, while difficulty of processing cheap for manufacturing cost is very low, especially drives bed board and lockable mechanism, significantly using single power
Improve mechanical efficiency.
Brief description of the drawings
Fig. 1 is the schematic diagram of the sick bed according to prior art.
Fig. 2 is the schematic diagram of the piston of the Hydraulically Operated Equipment of the sick bed according to prior art.
Fig. 3 be specific embodiment of the invention sick bed be in first position when schematic diagram.
Fig. 4 be specific embodiment of the invention sick bed be in the second place when schematic diagram.
Fig. 5 is that the sick bed of specific embodiment of the invention in extreme lower position and when tending to rising, show by drive mechanism
It is intended to.
Fig. 6 is the schematic diagram of sick bed drive mechanism in inactive state of specific embodiment of the invention.
Fig. 7 is the driving force of the drive mechanism of the sick bed of specific embodiment of the invention and the graph of a relation of time.
Specific embodiment
In order that the purpose, technical scheme and advantage of the embodiment of the present invention are clearer, below illustrate and the present invention is implemented
Example is described in further detail.In order to solve the problems, such as to be proposed in background technology, the present invention proposes a kind of sick bed and makes
With the magnetic resonance imaging system of the sick bed.
A kind of sick bed is provided according to a particular embodiment of the invention, the sick bed include a bed board, a drive mechanism, one
Support mechanism and a lockable mechanism, wherein, the supporting mechanism is used to support the bed board, and the drive mechanism is described for driving
The motion of bed board, the lockable mechanism is used in bed board described in a specific location locking.
Fig. 3 be specific embodiment of the invention sick bed be in first position when schematic diagram, Fig. 4 be according to this
The sick bed of the specific embodiment of invention is in the schematic diagram during second place.As shown in Figure 3 and Figure 4, tool of the invention
The sick bed of body implementation method includes a bed board 101, a supporting mechanism 103 and a lockable mechanism (as shown in figure 3, lockable mechanism bag
Include the through hole 18 of first through hole 20 and second；As shown in figure 4, lockable mechanism includes the through hole 21 of first through hole 20 and second), wherein,
The supporting mechanism 103 supports the bed board 101, and the lockable mechanism is in bed board 101 described in a specific location locking.
Wherein, as shown in figure 3, first, lockable mechanism includes an orifice, specifically, the orifice of lockable mechanism includes first through hole 20
With the second through hole 18, when the sick bed of specific embodiment of the invention is in first position, first through hole 20 and second
Through hole 18 overlaps；Secondly, lockable mechanism also includes a push rod (Fig. 3 is not shown), when the through hole 18 of first through hole 20 and second overlaps
When first position (sick bed of specific embodiment of the invention be in), the push rod is inserted into the He of first through hole 20
The orifice that the coincidence of second through hole 18 is constituted, so as to supporting mechanism 103 is locked at into first position.
Similarly, as shown in figure 4, first, lockable mechanism includes another orifice, specifically, another orifice of lockable mechanism
Including first through hole 20 and third through-hole 21, when the sick bed of specific embodiment of the invention is in the second place, the
One through hole 20 and the second through hole 21 overlap；Secondly, lockable mechanism also includes a push rod (Fig. 3 is not shown), when the He of first through hole 20
When second through hole 21 overlaps when position (sick bed of specific embodiment of the invention be in the and), the push rod is inserted
Enter the orifice that the coincidence of 20 and second through hole of first through hole 21 is constituted, so as to supporting mechanism 103 is locked at into the second place.
Specifically, first position, as shown in figure 3, being the extreme lower position of bed board 101；The second place, as shown in figure 4, being
The extreme higher position of bed board 101；First position or the second place can also be other any height that bed board 101 needs to keep.
The orifice of lockable mechanism can be the through hole on the supporting mechanism 103 shown in Fig. 3 and Fig. 4, and wherein supporting mechanism is
Scissor structure.When supporting mechanism 103 is bar linkage structure, the orifice can also be separately mounted on two companies of bar linkage structure
Two pin-and-holes on bar, when two pin-and-holes align, also certain bits can be locked at by push rod insertion pin-and-hole by supporting mechanism 103
Put.The push rod of lockable mechanism can insert orifice by artificial operation, it is also possible to insert orifice by automation.In addition, also
There is multitude of different ways and realize lockable mechanism, for example, it is used as lockable mechanism by various mechanical structures such as latching or buckle, will
Supporting mechanism and bed board be relatively fixed can also locking bed board motion.
One kind introduced below is used as drive mechanism and coordinates above-mentioned lockable mechanism completion of the invention by Hydraulically Operated Equipment
The sick bed of specific embodiment.Fig. 5 be specific embodiment of the invention sick bed extreme lower position and tend to rise when
The schematic diagram of drive mechanism.As shown in figure 5, when the sick bed of specific embodiment of the invention is in first position (i.e. bed board
Extreme lower position) when, the push rod 16 of lockable mechanism is located in the through hole 18 of first through hole 20 and second for overlapping, so as to bed board be consolidated
It is scheduled on extreme lower position.Although lockable mechanism can be accomplished in several ways (manually, automatic independent driving), of the invention
The bed board and lockable mechanism of the sick bed of specific embodiment all drive (i.e. automatic joint drives) by Hydraulically Operated Equipment, significantly
Reduce difficulty of processing and manufacturing cost.In addition, drive mechanism can also be a motor driver or an electro-hydraulic driver.
As shown in figure 5, lockable mechanism also includes one first cylinder body 19, a second piston 15 and a spring 17.Wherein, second
Piston 15 and spring 17 are oppositely arranged in the first cylinder body 19, and the cylinder body of the rear side of second piston 15 has liquid in the first cylinder body 19
Communication path is connected with liquid pump 12, and push rod 16 includes a first end and one second end, and the first end is connected with the piston 15,
(i.e. the external diameter at the second end is equal to orifice with orifice (through hole 18 of first through hole 20 and second for overlapping) matching at second end
Internal diameter).Wherein, spring 17 can also be substituted by other mechanical structures, for example, the 3rd piston, second piston and the 3rd piston lead to
Reversal valve is crossed to be connected with liquid pump and liquid case respectively.
As shown in figure 5, drive mechanism also includes a motor 11, a liquid pump 12, a liquid case 13, a reversal valve 14, one first
The cylinder body 10 of piston 9 and 1 second.Wherein, first piston 9 is arranged in the second cylinder body 10, in the second cylinder body 10 before first piston 9
There is the cylinder body of the rear side of first piston 9 fluid connection path to be connected with reversal valve 14 respectively in the cylinder body of side and the second cylinder body 10,
Liquid pump 12 is connected between reversal valve 14 and liquid case 13, and motor 11 drives liquid pump 12 that the liquid in liquid case 13 is pumped up into driving first
Piston 9 and second piston 15, are provided with reversal valve 14 between first piston 9 and liquid pump 12, second piston 15 directly with liquid pump 12
Connection.Reversal valve 14 includes three kinds of states, as shown in figure 5, being respectively to be directly connected to, end connection and intersect from left to right
Connection.When reversal valve 14 is in is directly connected to state, liquid pump 12 is pressed into the cylinder body of the front side of first piston in the second cylinder body 10 9
Liquid liquid flow liquid-return box 13 simultaneously in the second cylinder body 10 in the cylinder body of the rear side of first piston 9, so as to drive on first piston 9
Rise and then drive sick bed to rise (or decline)；When reversal valve 14 is in cut-off connection status, first piston 9 keeps entering static
State；When reversal valve 14 is in is directly connected to state, because fluid connection path intersects, connection liquid pump 12 is in cylinder body 10 the
The cylinder body press-in liquid of the rear side of one piston 9 liquid flow liquid-return box 13 simultaneously in cylinder body 10 in the cylinder body of the front side of first piston 9, liquid
Pump 12 drives first piston 9 to decline so as to drive sick bed to decline (or rising).
As shown in figure 5, when bed board is in extreme lower position and tends to the state of upward motion, Hydraulically Operated Equipment is (i.e.
Drive mechanism) drive lockable mechanism to unlock the motion of the bed board.Specifically, as shown in figure 5, the driving liquid pump 12 of motor 11 will
Liquid in liquid case 13 is pressed into the cylinder body of the rear side of second piston 15 in the first cylinder body 19, so that second piston 15 compresses spring 17
And then push rod 16 is departed from from orifice (through hole 18 of first through hole 20 and second for overlapping).Meanwhile, as shown in figure 5, motor
11 driving liquid pumps 12 by the liquid in liquid case 13 by reversal valve 14 be directly connected to state be pressed into the second cylinder body 10 in first live
The cylinder body of the front side of plug 9, while the liquid flow liquid-return box 13 in the second cylinder body 10 in the cylinder body of the rear side of first piston 9, so as to drive
First piston 9 rises and then drives sick bed to rise.
As shown in fig. 6, when bed board is in the state of extreme higher position or extreme lower position and remains stationary, lockable mechanism will
The motion locking of the bed board.Specifically, as shown in fig. 6, when bed board is in extreme higher position or extreme lower position, motor 11 is not
Drive liquid pump 12 that the liquid in liquid case 13 is pressed into the cylinder body of the rear side of second piston 15 in the first cylinder body 19 again, so that spring 17 is pushed away
Dynamic second piston 15 and then the push rod 16 is set to insert orifice (through hole 18 of first through hole 20 and second for overlapping).Meanwhile, such as Fig. 5
It is shown, in the second cylinder body 10 in the cylinder body and the second cylinder body 10 of the front side of first piston 9 cylinder body of the rear side of first piston 9 respectively with change
Connected to the port of the cut-off connection status of valve 14, so as to keep stability hydraulic state.
Similarly, it is in extreme higher position and when tending to the state for moving downward when bed board, Hydraulically Operated Equipment (i.e. driving machine
Structure) drive lockable mechanism to unlock the motion of the bed board.Specifically, motor 11 drives liquid pump 12 by the liquid pressure in liquid case 13
Enter the cylinder body of the rear side of second piston 15 in the first cylinder body 19, so that spring 17 is compressed and then makes push rod 16 from hole by second piston 15
Depart from part (through hole 18 of first through hole 20 and second for overlapping).Meanwhile, motor 11 drives liquid pump 12 by the liquid in liquid case 13
Body is pressed into the cylinder body of the rear side of first piston 9 in the second cylinder body 10 by the cross-connection state of reversal valve 14, while the second cylinder body
Liquid flow liquid-return box 13 in 10 in the cylinder body of the front side of first piston 9, so that under driving first piston 9 to decline and then driving sick bed
Drop.According to the combination of first piston 9 or the different connected modes of reversal valve 14, the mode of bed board raising and lowering also respectively has not
Together, above-mentioned principle but is still followed.
Fig. 7 is the driving force of the drive mechanism of the sick bed of specific embodiment of the invention and the graph of a relation of time.
As shown in fig. 7, it is the second (s) that transverse axis is time Time unit, the longitudinal axis is that pressure Pressure units are MPa (MPa).First pressure
Power P is the startup pressure (response pressure) of second piston 9, and second pressure P ' is the startup pressure of first piston 15
(response pressure), it is seen then that first pressure P is far longer than second pressure P '.Therefore, when drive mechanism is provided
When power is stepped up, drive mechanism makes lockable mechanism unlock the motion of bed board first, then further drives and promotes support
Mechanism realizes the motion of bed board, and during the motion of bed board, lockable mechanism keeps released state.
Sick bed according to a particular embodiment of the invention solves the problems, such as to keep sick bed height and stabilization, especially solves
The unstable problem of sick bed height reduction or position caused by fluid leakage in Hydraulically Operated Equipment, and it also avoid using
Seal member or mechanism also bring along extra mechanical resistance and reduce the problem of efficiency while leakage is blocked, also just not
There is a problem of that manufacturing cost and difficulty of processing is significantly increased using seal member.Therefore, it is of the invention according to the present invention
The sick bed of specific embodiment can for a long time keep stabilization and position, and extra mechanical resistance will not be produced to ensure that sick bed is transported
Dynamic efficiency, while difficulty of processing cheap for manufacturing cost is very low, especially drives bed board and lockable mechanism, significantly using single power
Improve mechanical efficiency.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.In tool
Can be to being improved appropriately according to a preferred embodiment of the invention, to adapt to the specific need of concrete condition in the implementation process of body
Will.It will therefore be appreciated that the specific embodiment of invention as described herein is to play an exemplary role, it is not used to limit this hair
Bright protection domain.
Claims (7)
1. a kind of sick bed, the sick bed includes a bed board, a hydraulic drive mechanism, a supporting mechanism and a lockable mechanism, wherein,
The supporting mechanism is used to drive the motion of the bed board, the locking for supporting the bed board, the hydraulic drive mechanism
Mechanism is used in supporting mechanism described in a specific location locking, and the hydraulic drive mechanism is additionally operable to drive the lockable mechanism
The motion of the bed board is unlocked, the hydraulic drive mechanism includes that one drives body, a reversal valve and a control unit, the drive
Bed board and the lockable mechanism described in dynamic ontology-driven, the motion of bed board described in the reversal valve control driving ontology-driven
Direction, described control unit is according to instruction the control reversal valve and the driving body.
2. sick bed as claimed in claim 1, it is characterised in that the hydraulic drive mechanism is driven needed for the motion of the bed board
Driving force unlock the motion of the bed board more than the lockable mechanism needed for driving force.
3. sick bed as claimed in claim 1, it is characterised in that the lockable mechanism includes a locking driver part and a unblock
Driver part, the hydraulic drive mechanism is additionally operable to drive the locking by providing driving force to the unblock driver part
Mechanism, wherein when the driving force of the unblock driver part is more than the driving force of the locking driver part, the lockable mechanism
Unlock the motion of the bed board.
4. sick bed as claimed in claim 3, it is characterised in that the locking driver part is a spring, the unblock drives
Part is a piston, and the lockable mechanism also includes a cylinder body, a push rod and an orifice, wherein, the push rod includes one first
End and one second end, the first end are connected with the piston, and the spring is oppositely arranged in the cylinder body with the piston,
The orifice is matched with second end.
5. sick bed as claimed in claim 4, it is characterised in that the supporting mechanism is a scissor structure, the orifice is point
Two through holes that Wei Yu be on two scissors of the scissor structure；When the supporting mechanism is in the ad-hoc location, two
The through hole overlaps.
6. sick bed as claimed in claim 4, it is characterised in that the supporting mechanism is a bar linkage structure, the orifice is point
Two pin-and-holes that Wei Yu be on two connecting rods of the bar linkage structure；When the supporting mechanism is in the ad-hoc location, two
The pin-and-hole connection.
7. a kind of Medical Devices, including the sick bed as described in claim 1-6 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750855.1A CN104739613B (en) | 2013-12-31 | 2013-12-31 | A kind of sick bed and Medical Devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750855.1A CN104739613B (en) | 2013-12-31 | 2013-12-31 | A kind of sick bed and Medical Devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104739613A CN104739613A (en) | 2015-07-01 |
| CN104739613B true CN104739613B (en) | 2017-06-06 |
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ID=53580249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310750855.1A Active CN104739613B (en) | 2013-12-31 | 2013-12-31 | A kind of sick bed and Medical Devices |
Country Status (1)
| Country | Link |
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| CN (1) | CN104739613B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822826B (en) * | 2017-11-28 | 2020-07-28 | 吉林大学 | Medical treatment paediatrics is with adjunctie therapy seat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002320651A (en) * | 2001-04-25 | 2002-11-05 | Paramount Bed Co Ltd | Lifting legs for furniture |
| JP2005052185A (en) * | 2003-08-01 | 2005-03-03 | Tokyo Menitsukusu:Kk | Stretcher for pet |
| JPWO2010098232A1 (en) * | 2009-02-24 | 2012-08-30 | 株式会社日立メディコ | Elevating mechanism and medical couch device |
| CN201822988U (en) * | 2010-10-22 | 2011-05-11 | 中国人民解放军南京军区福州总医院九五临床部 | Special self-locking type lifting bed for image examination |
| CN103222915A (en) * | 2013-04-03 | 2013-07-31 | 海南大学 | Stretcher vehicle capable of automatically and transversely moving patient |
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2013
- 2013-12-31 CN CN201310750855.1A patent/CN104739613B/en active Active
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| CN104739613A (en) | 2015-07-01 |
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Inventor after: Xue Tingqiang Inventor after: Yan Xu Inventor before: Xue Tingqiang Inventor before: Yan Xu |