# US 5,699,566 A · Sickbed

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- Number: US 5,699,566 A
- Document ID: US5699566A
- Status: Granted
- Kind: A
- Application number: 08/660,269
- Filed: 1996-06-07
- Granted: 1997-12-23
- Earliest claimed: 1996-06-07
- Inventors: Ching-Shan Chuang
- Web page: https://patentgrep.com/patent/US5699566A

## CPC

- A61G 7/008: tiltable around longitudinal axis, e.g. for rolling
- A61G 7/001: {with means for turning-over the patient}
- A61G 7/015: divided into different adjustable sections, e.g. for Gatch position
- A61G 7/0573: {with mattress frames having alternately movable parts (adjustable mattress frames A61G7/015)}
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)

## Abstract

A sickbed, comprising: a first bed frame, provided with a plurality of fixed bed planks of mutual distance to support the patient's body and allow him to sit up or lift the legs, thus changing his posture; a second bed frame, vertically movably mounted below the first bed frame; a plurality of movable bed planks, which are mounted on said second bed frame, at a suitable height above said second bed frame, keeping certain distances from each other and being placed in gaps between said fixed bed planks; a first driving device to drive the second bed frame's movement up and down; and a second driving device to drive the first bed frame. Its improved parts include two lateral turning frames to help the patient to turn around, each further comprising a shaft and a plurality of parallel support planks of mutual distance, which are mounted on said shaft, placed in gaps between the fixed bed planks and the movable bed planks, and are movable in a rotary movement as driven by said shaft. The movable bed planks protrude from the fixed bed planks or sink below them, changing the parts of the patient's body exposed to pressure. The lateral turning frames help to turn around the patient's body and to change the patient's lying posture.

## Claims

### Claim 1

A sickbed comprising:
a base frame,
a first bed frame mounted on said base frame, said first bed frame includes a plurality of fixed bed planks, said fixed bed planks are deployed in positions perpendicular to a longitudinal axis of said first bed frame,
a second bed frame that is movable up and down, said second bed frame is mounted below said first bed frame, said second bed frame includes a plurality of movable bed planks, said movable bed planks are deployed in positions perpendicular to a longitudinal axis of said second bed frame, said movable bed planks are interspersed between said fixed bed planks,
a first driving device to control up and down movement of said second bed frame,
two lateral turning frames adapted to help turn a body of a patient, each said lateral turning frame comprises a shaft mounted parallel to a longitudinal axis of said base frame and a plurality of support planks, said support planks are deployed in positions perpendicular to a longitudinal axis of said lateral turning flame, said support planks being interspersed between said fixed bed planks, and
a second driving device to control raising of outer ends of said support planks of said lateral turning frames so as to create a plane inclined from a center of said sickbed to urge said body of said patient to roll toward said center of said sickbed; wherein
said movable bed planks raise above or drop below a plane of said fixed bed planks to form alternate planes of support for said patient's body, thereby changing the areas of said patient's body subjected to pressure, and
said outer ends of said support planks raise to urge said patient's body toward said center of said sickbed.

### Claim 2 (depends on 1)

The sickbed as claimed in claim 1 wherein:
said first driving device further comprises a toggle link to control said up and down movement of said second bed frame and a power device to drive said toggle link.

### Claim 3 (depends on 1)

The sickbed as claimed in claim 1 wherein:
said first driving device comprises a plurality of pressurized fluid vessels mounted on a bottom side of said second bed frame.

### Claim 4 (depends on 1)

The sickbed as claimed in claim 1 wherein:
said first bed frame further comprises;
a central part fixed on said base frame,
a first movable part hingedly mounted on a front end of said central part so as to support said patient's upper body and to incline said patient's upper body as a distal end of said first movable part is raised, and
a second movable part which is hingedly mounted on a back end of said central part so as to support said patient's lower body and so as to raise said patient's lower body as a distal end of said second movable part is raised.

### Claim 5 (depends on 1)

The sickbed as claimed in claim 1 wherein:
said second driving device comprises a lever attached to said shaft of each said lateral turning frame and a pressurized fluid vessel to drive said lever.

### Claim 6 (depends on 4)

The sickbed as claimed in claim 4 wherein:
a third driving device raises and lowers said first and said second movable parts.

### Claim 7 (depends on 6)

The sickbed as claimed in claim 6 wherein:
said third driving device comprises a toggle link to control the raising of said first and said second movable parts and a power device to drive said toggle link.

### Claim 8 (depends on 7)

The sickbed as claimed in claim 7 wherein:
said third driving device comprises a plurality of pressurized fluid vessels mounted on a bottom side of said first bed frame.