Support Net Nursing Bed for Assisted Sit-Up Transfer
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Solution Overview
Problem
Existing nursing care beds require significant caregiver assistance for helping a care recipient get up from bed, leading to a physical and mental burden on caregivers.
Innovation Solution
A nursing care bed equipped with a support net and net lifting unit that lowers and raises the support net to facilitate the care recipient's movement from a lying to a sitting position, and includes a frame body with swinging and rotating frame portions to assist in getting up without caregiver assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional nursing care bed is used, then the bed structure is simple, but the caregiver must perform significant tasks to help the care recipient get up, increasing physical and mental burden
Solution Approach 1:
The support net is designed to enable the care recipient to lift their own body without caregiver assistance. The net provides distributed support across the body, allowing the care recipient to independently transition from lying to sitting position by pulling themselves up using the net as leverage.
Solution Approach 2:
The support net acts as an intermediary between the care recipient and the bed frame. It distributes the body weight across multiple contact points and provides mechanical advantage, enabling the care recipient to perform the lifting action with reduced effort while the net translates this into effective body elevation.
2Extent of automation
If a support system is added to reduce caregiver burden, then the ease of getting up improves, but the device complexity increases
Solution Approach 1:
The support system is segmented into discrete functional components: the lattice groove structure in the bed surface, the removable support net with specific mesh pattern, and the frame body. This segmentation allows each component to perform its specific function independently while maintaining overall system simplicity.
Solution Approach 2:
The support net is designed to be dynamically adjustable - it can be positioned at different locations along the bed, removed when not needed, and repositioned according to the care recipient's needs. This dynamic flexibility allows the system to provide automation only when required, reducing unnecessary complexity.
3Ease of operation
If the support net is continuously present, then the care recipient can always get up easily, but the net may interfere with normal lying comfort
Solution Approach 1:
The support net is positioned and prepared in advance at the optimal location for getting up. The lattice grooves are pre-formed in the bed surface to guide net placement. This preliminary arrangement ensures the net is ready to provide support exactly where needed without being a random obstruction during lying.
Solution Approach 2:
The support function is localized to specific areas where it is most needed - along the longitudinal axis of the bed where the care recipient makes contact during the lifting motion. The lattice grooves and net structure provide support only in these critical zones while leaving other areas of the bed surface smooth and comfortable for lying.
Data Source
AI summary
The nursing care bed (1) includes: a nursing care mat (5) on which a care recipient (K) lies; a support net (11) which is arranged between the nursing care mat (5) and the care recipient (K) and supports a body of the care recipient (K); a frame body (13) for holding the support net (11) in a horizontally stretched state; and a net lifting unit (21) for raising and lowering the frame body (13). An upper surface (6) of the nursing care mat (5) has a lattice groove (7) corresponding to the support net (11), and the net lifting unit (21) lowers the support net (11) to bury it in the lattice groove (7) and raises the support net (11) to separate the care recipient (K) from the nursing care mat (5).