Auxiliary Turning-Over Device for Sickbeds
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Solution Overview
Problem
Existing medical bed systems require high labor strength and are costly, making it difficult for bedridden patients to turn over or get on/off the bed, and often result in injuries and disordered bed mats, limiting their use in general wards.
Innovation Solution
An auxiliary turning-over device with two parallel support frames, rollers, and a flexible carrier driven by synchronized drive mechanisms, allowing patients to turn over without manual assistance, reducing space occupation and production costs, and enabling easy use in general wards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual assistance is used to help patients turn over, then patients can be turned over, but labor strength is high and efficiency is low
Solution Approach 1:
The device enables patients to turn over independently through wireless control modules, eliminating the need for nursing staff assistance. The control system allows patients to self-operate the turning-over process via remote control devices or voice commands, fundamentally changing from manual assistance to self-service operation.
Solution Approach 2:
The patent replaces manual mechanical assistance with an automated mechanical system consisting of drive mechanisms, rollers, and flexible carriers. The drive mechanisms drive the rollers to rotate, which in turn move the flexible carriers to transport patients, substituting human labor with an automated mechanical system.
2Productivity
If auxiliary turning-over devices are used, then patients can turn over automatically, but the devices occupy more space and are costly
Solution Approach 1:
The device is divided into modular components: support frames, rollers, flexible carriers, and drive mechanisms. These segmented parts can be independently arranged and configured, allowing compact placement around the bed and easy adjustment to minimize space occupation while maintaining turning-over functionality.
Solution Approach 2:
The flexible carriers are arranged to extend from the side of the bed toward the center, utilizing the lateral dimension rather than occupying overhead or floor space. The rollers and support frames are positioned at the bed's periphery, effectively using vertical and lateral dimensions to minimize footprint in the ward space.
3Productivity
If rigid turning-over devices are used, then patients can turn over, but the devices are stiff in operation and bring discomfort to patients
Solution Approach 1:
The patent employs flexible carriers made of soft, pliable materials instead of rigid structures. These flexible carriers can conform to the patient's body shape, providing comfort during the turning-over process. The flexibility allows the carriers to adapt to different patient positions and body types, eliminating discomfort associated with rigid devices.
Solution Approach 2:
The device allows adjustment of operational parameters such as the speed of roller rotation, the tension of flexible carriers, and the angle of patient positioning. These parameter changes enable the system to adapt to different patient needs and comfort requirements, making the operation more comfortable and less stressful for patients.
4Productivity
If traditional turning-over methods are used, then patients can be turned over, but bed mats become disordered and nursing operations are impeded
Solution Approach 1:
The patent extracts the patient from the bed mat environment during the turning-over process. The flexible carriers lift and transport the patient away from the bed mat, preventing the mat from becoming disordered. This separation allows the bed mat to remain stationary and orderly while the patient is turned over on the flexible carriers.
Solution Approach 2:
The flexible carriers act as an intermediary between the patient and the bed mat. Instead of directly moving the patient on the bed mat (which causes disordering), the flexible carriers serve as a mediator that transports the patient independently, leaving the bed mat undisturbed and maintaining its order for subsequent nursing operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device facilitates safe and efficient patient turning with reduced labor strength and cost, maintaining bed mat cleanliness and preventing secondary injuries, while allowing patients to independently control the turning-over process through wireless control modules.
Implementation Method 1
the patient lying on the flexible carrier, under the effect of gravity, turns over along with the movement of the flexible carrier
Implementation Method 2
the patient lying on the flexible carrier, under the effect of a friction force between the flexible carrier and the patient, turns over along with the translation of the flexible carrier
Data Source
AI summary
An auxiliary turning-over device is provided which comprises two parallel support frames at two sides of a sickbed respectively, two rollers rotatably connected on the two support frames, a drive mechanism respectively in drive connection with the two rollers for driving the two rollers to synchronously rotate around respective axis, and a flexible carrier arranged between the two rollers; the two ends of the flexible carrier are respectively wound on the two rollers, and when the two rollers are driven by the drive mechanism to rotate along the same direction, the flexible carrier translates and winds the other roller at the moment of being released from one roller along its translation direction. With a simplified structure, the auxiliary turning-over device help to lower the manual auxiliary labor intensity and cost when the bedridden patient turns over or goes to bed.