JPS62114554A - Bedsore preventing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a pressure sore prevention device for a patient's bed.

[Prior Art and Problems to be Solved] Procedures for moving a sick person from a hospital bed to a wheelchair or commode, or to a bathtub in a hospital, nursing home, or home, or for assisting a sick person in such a transfer, involve many methods. Case −
It requires more than 1,000 people, is labor intensive, and can be expensive. This work often requires considerable physical strength and may cause injury to the patient or attendant. Additionally, the task of regularly moving and reorienting patients to prevent pressure sores is arduous and tiring. These problems are a major factor in why patients are hospitalized or transferred to nursing homes instead of being cared for at home. These problems also make nursing care expensive in hospitals and nursing homes.

Another widely used method for preventing bedsores is to periodically change the position of a lying patient (for example, every two hours) to increase blood circulation to areas of the body that are under pressure from the patient's weight. It's something to do often. This is a difficult manual task, especially for heavy patients, and often results in back injuries to nurses and attendants.

An easier way to change the patient's position is to shift the patient's position and weight to compensate for the pressure on the body of the person with PA! ] It is the act of tilting the surface on which the patient is lying so as to change the position of the patient. Various methods have been used for this purpose, including tilting nets and special beds in which the center portion of the pine tress can tilt from side to side. Most or all of these devices will interfere to some extent with the normal care of a patient in a hospital bed, including free folding of the pinerest to raise the patient's knees and back. They are also generally incompatible with equipment for transporting a patient on a transfer seat over a bed surface, as described in the parent application.

It is therefore an object of the present invention to provide a novel component or accessory device that can be added to and installed in existing beds or new beds (including those of the home or hospital type) or designed for new beds. The goal is to provide the following.

Another object of the invention is to provide an improvement for lateral tilting of the bed surface to shift the patient's weight distribution in order to increase blood circulation and prevent the formation of pressure sores.

[Means for solving the problem] The present invention protects the patient from bed sores by tilting the entire bed to shift the patient's position and weight distribution. It is an object of the present invention to provide a bedsore prevention device comprising a bed, a tilting means for tilting the bed to the left and right sides, and a patient support means for supporting a lying patient when the bed is tilted. As a second solution, there is a bed having a muff rest, a bed frame, and legs, and a transport means having rollers on both sides of the bed.

A flexible sheet extending on the pine tress between the rollers, the sheet being wound around one roller on one side of the bed, and the date being rewound from the roller on the other side of the bed, the sheet is placed on the pine tress. It is an object of the present invention to provide a bed sore prevention device capable of transporting a person, comprising roller drive means for pulling across the surface and tilting means having means for lifting either side of the bed frame and supporting the patient when the bed is tilted. It is something to do.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a typical home or hospital bellows equipped with a tilting mechanism 182 for tilting the entire bed from side to side.
185 is a partial cross-sectional schematic end view.

FIG. 2 is a partial perspective view showing the tilting mechanism 182 and the bed frame.6 The bed lifting mechanism and folding mechanism for lifting the patient's back and legs are not shown except for the movable (folding) frame 17. . The bed in FIG. 1 is tilted by lifting and supporting one side of the fixed frame 15 while the other side of the bed rests on wheels 4 fitted in channel material 148. When the bed is not tilted, it is supported on the bed legs and wheels (not shown in Figure 1).

The tilting mechanism is comprised of a motor drive mechanism 140 comprising a reversible motor, gearbox and slip clutch assembly of the type commonly used in hospital beds. This drives the worm screw 178 and thereby installs a pole shaft 145 with a guide roller 143 and a lift roller 144 on each side.
42. The guide rollers rest on guide roller tracks 154'', and the lift rollers 144 are fitted to the lower part of the lift arms 146, 147, 170 and 171. When the ball nut 142 is driven toward the right side of the bed, the two lift arms 147 and +
71 engages and lifts the bed frame member 15, lifting and supporting U-shaped channel member 169, thereby tilting the bed to the right.

The wheels 4 on the other side of the bed are held by channel members 148 welded or otherwise attached to the floor play [49] on either side of the tilting mechanism.

The U-shaped channel material 189 and the opposing U-shaped channel material 148 support the bed frame 15 and both legs 173 in the lateral and vertical directions, respectively, and prevent excessive bending loads from being applied to the legs of the bed when the bed is tilted. ing.

Lift arms 14G and 170 are shafts! The lift arms 147 and 171 are driven around the shaft 151. These drive shafts are generally in line with the bed wheels and are rigidly attached to transverse channel members 150 which are fitted with floor plates 149 and rubber isolation pads 153 for stability. The lateral force direction channel material further includes a bracket 15.
8 through the ball screw motor 140 and the shaft bearing block 1 through the bracket 15B.
41 and a guide roller track 154 are attached. Before starting the tilting operation, please use the long pillow 157.
are placed along both sides of the pinerest 113 to support the patient. The long pillow is attached to the side rails 1 by means of loops 172 with Velcro (VEIC: RO) or other fastening devices.
It is removably attached to 5B. The side rails are bolted or otherwise attached to the frame 17 and support the long pillow, patient, and pinerest when the bed is tilted.

The motor 140 is connected to the control box 1 via a cable 182.
60, and the control box is equipped with an instantaneous spring return switch.

The motor is thereby operated to drive in both directions by devices well known to those skilled in the art. Cable 163 connects to the necessary power source, typically 115V 80H7.

Control box 180 may be mounted anywhere convenient or may be hand held. In order to adjust the maximum tilt angle of the bed, adjustable limit stops (not shown) and/or limit switches (not shown) may be provided; in addition to one manual control switch, a relay circuit may be provided. An automatic timer may be used to automatically change the tilt of the bed at programmed intervals, such as every two hours, which is typically employed to prevent pressure sores. However, manual control is preferred for patient safety.

FIG. 3 is a partial perspective view of a tilting mechanism very similar to FIG. 2, except that all bed legs are lifted off the floor to support and tilt the bed. During normal use, the bed is raised to the selected height and adjustable lift stop 1
55 is set.

As a result, the bed frame 15 is fitted by the channel material 168 and cannot be lifted. Channel material 169 thereby holds bed 185 in position for tilting. Alternatively, the bed can be held in place by chocks under the wheels. In preparation for tilting the head (in this case a hospital bed with a lifting mechanism), the bed frame 15 engages the channel material 160 and the rollers are mounted on the support plate 175 attached to the lift arms 14B and 170. The bed is lowered so that it rests on the bed. The lifting drive mechanism is then lowered a little further to lift the bed leg off the floor. Next, the bed tilting mechanism is similar to that of FIG. 1, except that the frame 15 is supported in channel material 160 on one side of the bed and rests on rollers 174 on a plate 175 on the other side of the bed. It works the same way. The rollers allow movement between the play plate 75 and the head frame 15 by displacement between the lift arm pivots 151 and 152 and the lower end of the bed frame 15.

FIG. 4 is a partial end view of the bed and lifting mechanism showing rollers 174 and support plate 175. FIG.

FIG. 5 is a schematic side or end view of a bed with a roller-driven transport sheet and roller drive means (not shown). Tilting mechanism +82/+83 is shown in Figure 2 or Figure 3.
What is shown in the figure is shown.

The conveyance sheet 177 is wound onto the roller assembly 179 and unwound from the roller assembly 179.
Or it can be moved across the bed by doing the reverse. The transport roller assemblies may be reasonably compact in design, but are located at either end or both sides of the bed and are not used during or interfere with the bed tilting operation.

FIG. 6 is a partial elevational view showing the manual crank 197.

The manual crank is mounted on a worm screw 178 supported on member 150 by a bracket and bearings 198.
1 and can be used in place of the motor drive mechanism 140 of FIGS. 2 and 3 in other embodiments of the present invention.

FIG. 7 is a partial elevation view showing another method of supporting a patient during a tilting maneuver. Mattress 179 is configured with a slot 180 that allows the mattress to be folded and fattened as shown. The mattress 179 is held in the center of the bed by a flexible piece of cloth having laces 192 that secure it to the side rails 15B or frame members 17 or 15. Both sides of the mattress 79 are raised by supports 181 which are inserted into fabric pockets on the pinerest or fixed to the lower end of the pinetress 179. The lower end of support 181 rests on side rails or rests on hand frame 17 or 15.

[Effect] According to the present invention, an existing bed or a new bed (
A novel anti-bedsore device can be provided that can be added to or installed in a home (including home or hospital type) or designed for new use, which is particularly useful in the following cases: It is. A) Transferring a patient from a bathtub or bed to a reclining wheelchair or other surface; B) Transferring a patient to or from a bathtub device for bathing; C) Moving a patient from a bathtub to prevent pressure sores. Transferring a person or patient to or from a padding surface that is designed to automatically vary or reduce pressure on the skin; D) Removing or replacing soiled bedsheets.

[Brief explanation of drawings]

Fig. 1 is a schematic partial cross-sectional view of the end face of a bed equipped with a tilting mechanism for lifting and supporting one side or the other side of the bed frame; Fig. 2 is a partial perspective view of the tilting mechanism and frame;
Figure 3 is a view similar to Figure 2 except that both sides of the bed frame are simultaneously supported by a tilting mechanism; Figure 4 is a partial end view of the bed and tilting mechanism in Figure 3; Figure 5 6 is a partial elevation view showing an alternative manual crank drive; FIG. 7 is a partial elevation view showing an alternative patient support device. It is a diagram. 15. I? : Frame 113,179 +
Mattress 140: Motor drive mechanism 142: Ball nut 143444.174: Roller 146.147, 170.171: Lift arm 1
54 Ni guide roller track 156: Rail 157: Long pillow 172:
Loop 173: Leg 177: Conveyance sheet 178: Worm screw 178: Roller assembly 181: Support 182.1
83: Tilt mechanism 185: Bed 187: Manual crank

Claims (11)

[Claims] (1) A bed sore prevention device comprising a bed having a mattress, a bed frame, and legs, a tilting means for tilting the bed to the left and right sides, and a patient support means for supporting a lying patient when the bed is tilted. (2) The tilting means includes a reversible motor drive means coupled to a worm screw, a ball nut driven by the worm screw, a first roller means and a track means for guiding and regulating the ball nut; second roller means coupled to the ball nut and supporting the lever arm member such that one side of the bed frame is lifted by movement of the ball nut in one direction and the other side of the bed frame is lifted by movement in the opposite direction; A bedsore prevention device according to claim 1. (3) a support member having a vertical protrusion attached to the lever arm member and engaging the bed frame to provide lateral support to the bed frame on both sides of the bed; Bedsore prevention device. (4) The bedsore prevention device according to claim 3, further comprising an accessory member for restricting and preventing lateral movement of the bed leg with respect to the tilting means. (5) The support member is provided with a vertical protrusion on one side of the bed frame that engages with the bed frame to provide lateral support to the bed frame, and on the other side of the bed frame that is connected to the bed frame. 3. A bedsore prevention device as claimed in claim 2, including roller means for allowing lateral movement between the support and the support. (6) the patient support means includes a side rail attached to the bed frame; a removable long pillow extending along the side and resting on the mattress; and attachment means for attaching the long pillow to the bed; A bedsore prevention device according to claim 1, comprising: 7. The patient support means according to claim 1, wherein the patient support means includes a mattress having bendable slots for raising side edges and a removable member for supporting the raised mattress edges. Bedsore prevention device. (8) The tilting means includes a manual crank drive means coupled to the worm screw, a ball nut driven by the worm screw, a first roller means and a track means for guiding and regulating the ball nut, and the ball nut. second roller means coupled to the nut and supporting the lever arm member such that movement of the ball nut in one direction lifts one side of the bed frame and movement in the opposite direction lifts the other side of the bed frame. A bedsore prevention device according to claim 1. (9) The tilting means includes a manual crank drive means coupled to the worm screw, a ball nut driven by the worm screw, a first roller means and a track means for guiding and regulating the ball nut, and the ball nut. a second roller means coupled to the nut and supporting the lever arm member such that one side of the bed frame is lifted by movement of the ball nut in one direction and the other side of the bed frame is lifted by movement in the opposite direction; 2. A bedsore prevention device as claimed in claim 1, further comprising a vertical projection attached to the member and engaging the bed frame to provide lateral support to said bed frame on opposite sides of the bed. (10) The tilting means includes a manual crank drive means coupled to the worm screw, a ball nut driven by the worm screw, a first roller means and a track means for guiding and regulating the ball nut, and the ball nut. a second roller means coupled to the nut and supporting the lever arm member such that one side of the bed frame is lifted by movement of the ball nut in one direction and the other side of the bed frame is lifted by movement in the opposite direction; a vertical protrusion attached to the member that engages the bed frame and provides lateral support to the bed frame on each side of the bed; and a lateral protrusion on each side of the bed frame between the bed frame and the support; 2. A pressure sore prevention device according to claim 1, further comprising roller means for enabling movement. (11) a bed having a mattress, a bed frame and legs; a conveying means having rollers on both sides of the bed; a flexible sheet extending over the mattress between the rollers; roller drive means for winding the sheet onto one roller on the bed side and unwinding the sheet from a roller on the other side of the bed to pull the sheet across the surface of the mattress; and raising either side of the bed frame and tilting the bed. A bed sore prevention device capable of transporting a person, comprising tilting means and means for supporting the patient.