Operating table having emergency mode
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Solution Overview
Problem
Existing operating tables face challenges with unreliable emergency mode operation due to unstable control equipment, high manufacturing costs of lifting devices, and issues with column guide systems experiencing stick-slip phenomena and wear, leading to difficulties in regulating table height and maintaining proper sealing against environmental intrusions.
Innovation Solution
The operating table incorporates a sealing device using bellows and adhesive seals, a stable hardware-based control module for emergency mode operation, a screw-and-nut lifting mechanism with a U-shaped lifting fork for reduced costs and improved reliability, and a column guide system with adjustable guide sliders and compensation elements to enhance rigidity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lifting pipe with groove and bridge web is used to move the top column, then the top column can be driven to rise or fall and rotary movement can be avoided, but the manufacturing cost is high
Solution Approach 1:
The patent replaces the expensive lifting pipe with a groove and bridge web structure with a simple guide structure comprising a guide slot and guide block. The guide block slides within the guide slot to prevent rotary movement, eliminating the need for complex grooves and bridge webs while maintaining the anti-rotation function and significantly reducing manufacturing cost.
2Device complexity
If a sliding column guide system is used to adjust the height of the table top, then the structure is simple, but the top column experiences stick-slip phenomenon and wear, making it difficult to evenly regulate height and causing lock-in-place
Solution Approach 1:
The patent replaces the sliding column guide system with a screw-driven lifting mechanism. The screw rod rotates within the screw nut, converting rotational motion to linear motion for height adjustment. This eliminates the stick-slip phenomenon and wear associated with sliding contacts, ensuring smooth and reliable height regulation while maintaining structural simplicity.
3Device complexity
If a sliding column guide system is used, then the structure is simple, but a relatively great driving force is required to overcome friction force
Solution Approach 1:
The patent replaces the sliding friction-based guide system with a screw mechanism. The screw rod and screw nut create a threaded connection that converts rotational torque into linear lifting force. This mechanical advantage significantly reduces the driving force required compared to overcoming sliding friction, while the screw structure remains simple and compact.
4Device complexity
If the top column is nested into the bottom column for height adjustment, then the structure is compact, but gaps may form due to manufacturing tolerance, adversely affecting guidance and causing lock-in-place
Solution Approach 1:
The patent introduces a screw rod as an intermediary element between the top and bottom columns. The screw rod rotates within the screw nut, providing precise positional control and maintaining consistent contact without gaps. This intermediary mechanism eliminates guidance issues caused by manufacturing tolerances in nested structures while preserving the compact design.
Data Source
AI summary
The present disclosure relates to an operating table, the operating table comprising a table top, a table top support and a column with a column head, wherein the sealing device is bellows assembled below the column head, or an adhesive in a hole and/or window on the holder of the cable, or a sealing gasket between the receiver and the column head, or a shield sealingly attached to the column head below the gear. The present disclosure further relates to control equipment, a lifting device, an intelligent charger, a column guide system for an operating table, as well as an operating table including the same.