CN2154679Y

CN2154679Y - Multifunction automatic posture changing sickbed

Info

Publication number: CN2154679Y
Application number: CN 93227642
Authority: CN
Inventors: 卢贵东
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-22
Filing date: 1993-03-22
Publication date: 1994-02-02
Anticipated expiration: 2003-03-22

Abstract

The utility model relates to medical equipment, particularly an auxiliary nursing instrument used for long-term laid-up patients. A bed body is connected with a bed frame through a rotating shaft, a fan-shaped gear is arranged on a baffle plate on the foot side of the bed body, a limiting gear is respectively arranged on the two sides of the fan-shaped gear, travel switches are arranged on the two sides of a bed frame post, a sensor is also arranged, the fixed contact seat board of the sensor is connected with the post, and the movable contact arm of the sensor is connected with the rotating shaft. Through a bed body fixed bed frame which can be rotated and an electric control rotating device which is arranged on the foot side of the bed frame, the bed body is controlled to be adjusted left, right, forwards at fixed time, so the pressure bearing condition of the bodies of the patients is improved.

Description

Multifunction automatic posture changing sickbed

This utility model relates to a kind of medical apparatus and instruments, the invalid assisted care apparatus of particularly a kind of long-term bed.

Decubital ulcer is long-term bed patient's a severe complication, can cause great misery to patient, is more common in paraplegia, hemiplegia, stupor, long-term bed such as after the old weak or various major operations and the patient that can not change clinostatism voluntarily.Because the long-term pressurized of local skin causes thrombosis, thus downright bad easily, form ulcer, become decubital ulcer.In traditional care method, except that carrying out part massage, the major measure of prevention decubital ulcer is to help patient to stand up the change clinostatism once every about two hours by the nursing staff, makes the local soft tissue of pressurized remove compressing by the change clinostatism, improves blood circulation.But in real work, not only nursery work extremely bothers, and labor intensity is big, and may be because inadvertent makes patient that decubital ulcer take place.In addition, some disease as the patient after cerebral hemorrhage, cerebral trauma, spinal injury, the major operation etc., may increase patient's misery because of manually stirring health, even aggravate disease.How easy and effectively prevent decubital ulcer, be the difficult point of nursery work always.

The purpose of this utility model is to provide a kind of sick bed that can carry out postural change automatically, by rotating bed body fixed bedstead and be loaded on the automatically controlled tumbler of sufficient side bedstead, the adjustment at positive three positions about control bed body is regularly done, thereby improve the pressurized situation of patient body, blood circulation promoting.In addition, movable back frame and removable bedpan are housed also on the bed body, use with convenient.

The purpose of this utility model realizes by following technical measures:

It comprises a body, back rest, connecting rod, rocking arm, control chamber, decelerator and travel switch composition, it is characterized in that, a bed body links to each other with the bedstead column by rotating shaft, on the sufficient side plate washer of bed body sector gear is housed, and spacing shelves are respectively adorned on both sides; Travel switch is equipped with in bedstead column both sides, and pick off is housed, its fixed contact seat board links to each other with column, the armature contact support arm links to each other with rotating shaft, bed body head side fixedly is equipped with the movable back frame through connecting rod, the place is provided with control chamber at sufficient side bedstead column, and sector gear connects with the bed bulk phase, and motor and decelerator are fixed on the bedstead; Be equipped with the circuit elements device mounting board in the described control chamber, and electric actuator, this device is constituted by motor, shaft coupling, worm type of reduction gearing, pinion and sector gear; Level Four long delay monostable circuit DC is housed on the installing plate ₁-DC ₄And position sensor and two bistable circuit SC ₁, SC ₂Join this bistable circuit SC ₁, SC ₂With phase inverter BG ₁, BG ₂And relay J ₁, J ₂Link to each other; Be provided with manual lifting device below the bed body, this device comprises that the assembling that is meshed with rocking arm of leading screw, screw, connecting rod and bevel-gear sett constitutes; Hole in that the activity of having of bed surface central authorities is uncapped has mounted a bedpan under it.

Advantage of the present utility model and effect are:

1. sick bed manufacturing simple in structure, easy;

2. the bed body face that crouches is an arc surfaced, and is close with human body back curvature, and patient crouches, and pressure is little in bed, can alleviate soft tissue pressure;

3. be provided with automatic control circuit and electric actuator, energy is conversion patient's position regularly, thereby makes patient because of the local organization blood circulation of gravity pressurized improves, and prevents the generation of decubital ulcer.

4. be provided with automatic control/manual change-over switch and manual buttons, when automatic control/manual switch being pulled, can push " left-hand rotation " or " right-hand rotation " button, by patient's wish change position to " manual control " position.

5. be provided with the movable back frame, can back rest propped or set level with hand tumbler by the nursing staff by patient's requirement.

6. be provided with the defecation hole in the bed bottom, slideway and bedpan are housed below, the little bed pad of taking out under the person of preventing or cure a disease can carry out excrement and urine, and (upper limb active patient oneself can carry out excrement and urine at any time) is very convenient.

Description of drawings is as follows:

Fig. 1 is an overall structure sketch map of the present utility model;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is circuit theory diagrams.

Below in conjunction with accompanying drawing concrete structure of the present utility model and circuit working principle are done further statement:

Bed body 2 is steel wood mixed structures, arc bed surface (the bed surface radius of curvature is 550mm) bed body two ends is housed rotating shaft is housed, and links to each other with bedstead column 1,4 by rotating shaft.On the bed body foot side plate washer sector gear 16 is housed, respectively there are spacing

shelves

17,21 on both sides, in bedstead column 1 both sides a

travel switch

18,20 are arranged respectively.Position sensor 19 also is housed on the bedstead column, and its fixed contact seat board links to each other with column, and the armature contact support arm links to each other with rotating shaft.Have the defecation hole in bed surface central authorities, bedpan 10 is equipped with in its below, and bedpan is contained on the slideway, can take off at any time.Be provided with movable back frame 3 to the centre in bed body head side, there is hand transmission elevating mechanism bed body below, this mechanism is made up of leading screw 7, screw 5, connecting rod 6, a pair of conical gear 8 and rocking arm 9, can need shake rocking arm by the nursing staff by patient back rest is propped or put down.1 place is provided with control chamber 11 at sufficient side bedstead column, and electric actuator and circuit elements device mounting board 22 are arranged in the case.Electric actuator is made up of motor 12, elasticity finger shaft coupling 13, second-stage worm gear worm reducer 14, pinion 15 and sector gear 16.Sector gear 16 links to each other with bed body 2, and motor 12 and decelerator 14 link to each other with bedstead.Can drive a body after the motor energising rotates around the longitudinal axis.In addition, be provided with crank at first order worm screw top and connect axle journal, can the bed body be forwarded to additional crank rotary worm during power failure needs the position.

The automatic control circuit (see figure 4) is mainly by positive and negative power supply (DY ₁, DY ₂), level Four long delay monostable circuit (DC ₁, DC ₂, CD ₃, CD ₄, be called for short monostable), starting circuit (Q), bistable circuit (SC ₁, SC ₂, be called for short bistable), position sensor (WC), relay (J ₁, J ₂), phase inverter (BG ₁, BG ₂), travel switch (K ₅, K ₆), automatic control/manual change-over switch (K ₂) and motor (M) composition.The circuit working principle is as follows:

Plug X, energized K switch plug in ₁, 220 volts of alternating voltages ignite power supply indicator through fuse.As automatic control/manual change-over switch K ₂When placing " automatic control " position, positive supply DY ₁And negative supply DY ₂Energising.Negative supply filter capacitor C ₇Capacity Ratio positive supply filter capacitor C ₆Capacity little, so that negative voltage is set up than positive voltage is Zao, make the monostable steady statue that all is in of level Four.After after a while, start level Q conducting, the output pulse is through C ₅, R ₅Differential, negative sharp cutting edge of a knife or a sword pulse is through isolating diode D ₉Remove to trigger the monostable DC of the first order ₁, make it be turned to temporarily steady state, DC ₁Output voltage is through C ₁, R ₁Differential, positive sharp cutting edge of a knife or a sword pulse is through isolating diode D ₂And resistance R ₆Remove to trigger bistable SC ₁First pipe makes SC ₁Upset, SC ₁Output voltage is through coupling resistance R ₁₂Be added to phase inverter BG ₁Base stage, make BG ₁Conducting, relay J ₁Energising work, 220 volts of alternating currents are through J ₁Contact and travel switch K ₅Make motor M energising rotation, drive the bed body and turn left.When the armature contact of position sensor WC and left fixed contact were connected, 12 volts of voltages were through resistance R ₉, R ₁₀Dividing potential drop and C ₈, R ₁₁Differential, positive spike is through isolating diode D ₁₀Remove to trigger SC ₁Second pipe, make SC ₁Reply, output voltage drops near zero volt, BG ₁End J ₁Outage, motor quits work, and the bed body is parked in position, a left side.After spending 1 hour, monostable DC ₁Be returned to steady statue, the output low level pulse is through C ₁, R ₁Differential, the undershoot pulse is through isolating diode D ₁Remove to trigger monostable DC ₂, make it be turned to temporarily steady state, DC ₂Output voltage is through C ₂, R ₂Differential, positive spike is through isolating diode D ₄And resistance R ₇Remove to trigger bistable SC ₂First pipe makes SC ₂Upset, SC ₂Output voltage is through coupling resistance R ₁₃Be added to phase inverter BG ₂Base stage, make BG ₂Conducting, relay J ₂Energising work, 220 volts of alternating currents are through J ₂Contact and travel switch K ₆Make motor M energising reverse rotation, drive the bed body and rotate to prosposition.When the armature contact of position sensor WC and middle fixed contact were connected, 12 volts of voltages were through resistance R ₉, R ₁₀Dividing potential drop and C ₈, R ₁₁Differential, positive spike is through isolating diode D ₁₁Remove to trigger bistable SC ₂Second pipe makes SC ₂Reply, output voltage drops near zero volt, BG ₂End J ₂Outage, motor quits work, and the bed body is parked in prosposition.

Later on by this rule, every monostable answer in 1 hour, the output pulse, it is monostable to go to trigger next stage through differential, makes its upset, and next process begins, and final stage is monostable, and to go to trigger the first order again monostable, so moves in circles, and makes a regularly change of location of a body.

As automatic control/manual switch K ₂When placing " manual control " position, can push left-hand rotation button K ₆Or right-hand rotation button K ₄, a body is rotated on demand, can stop at an arbitrary position, when forwarding limit on the left position or limit on the right-right-hand limit position to, travel switch K ₅Or K ₆Disconnect, motor cuts off the power supply automatically, and a body is stopped operating.

Claims

1, the automatic conversion sick bed of multi-functional position, comprise a body 2, back rest 3, connecting rod 6, rocking arm 9, control chamber 11, decelerator 14 and travel switch 18,20 compositions, it is characterized in that, bed body 2 links to each other with bedstead column 1,4 by rotating shaft, on the sufficient side plate washer of bed body 2 sector gear 16 is housed, spacing shelves 17,21 are respectively adorned on both sides; Travel switch 18,20 is equipped with in bedstead column 1 both sides, and pick off 19 is housed, its fixed contact seat board links to each other with column, the armature contact support arm links to each other with rotating shaft, 2 sides of bed body fixedly are equipped with movable back frame 3 through connecting rod 6,1 place is provided with control chamber 11 at sufficient side bedstead column, and sector gear 16 links to each other with bed body 2, and motor 12 and decelerator 14 are fixed on the bedstead.

2, conversion sick bed as claimed in claim 1, it is characterized in that being equipped with in the described control chamber circuit elements device mounting board 22, and electric actuator, this device is constituted by motor 12, shaft coupling 13, worm type of reduction gearing 14, pinion 15 and sector gear 16; Level Four long delay monostable circuit DC is housed on the installing plate 22 ₁-DC ₄And position sensor 19 and two bistable circuit SC ₁, SC ₂Join this bistable circuit SC ₁, SC ₂With phase inverter BG ₁, BG ₂And relay J ₁, J ₂Link to each other.

3, conversion sick bed as claimed in claim 1 is characterized in that being provided with manual lifting device below bed body 2, and this device comprises that the assembling that is meshed with rocking arm 9 of leading screw 7, screw 5, connecting rod 6 and bevel-gear sett 8 constitutes.

4, conversion sick bed as claimed in claim 1 is characterized in that the hole of uncapping in the activity of having of bed surface central authorities having mounted a bedpan 10 under it.