Medical Robot Drape Unit Clean Area Isolation
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Solution Overview
Problem
Existing drape units for medical robots fail to adequately isolate clean and unclean areas, leading to potential interference with surgical instrument movement and safety concerns due to exposed adapters and unnecessary force application.
Innovation Solution
A drape unit with a movable intervening part that receives power from the medical robot and a fixed intervening part with a housing portion to cover the movable part, preventing exposure and ensuring reliable isolation between clean and unclean areas, featuring a configuration that includes a first and second opening with a third movable portion to cover the through-hole and guide grooves for precise movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adapter covers the entire opening for movable member movement, then isolation between clean and unclean areas is improved, but the adapter interferes with movable member movement and may transmit unnecessary force to the surgical instrument
Solution Approach 1:
The adapter is divided into two functional parts: a fixed portion that remains stationary to maintain isolation, and a movable portion that moves with the movable member to prevent exposure. This segmentation allows each part to perform its specific function without interfering with the other's operation.
Solution Approach 2:
The adapter transitions from a static structure to a dynamic one where the movable portion can change position according to the movable member's movement. This dynamic configuration enables the adapter to maintain isolation effectiveness while accommodating the full range of motion of the movable member without interference.
2Reliability
If the adapter is made long to cover the entire opening, then isolation is improved, but external force applied to the adapter may be transmitted to the surgical instrument
Solution Approach 1:
The adapter is segmented into fixed and movable portions that are independently supported. The movable portion is supported by the movable member it covers, while the fixed portion is supported by the drape body. This segmentation prevents force transmission from the adapter to the surgical instrument through the movable member.
Solution Approach 2:
The movable portion acts as an intermediary between the fixed portion and the movable member. It transmits only the necessary driving force while isolating the surgical instrument from external forces applied to the adapter, thereby preventing harmful force transmission.
3Ease of operation
If the adapter is made short to avoid interference, then ease of operation is improved, but isolation between clean and unclean areas becomes insufficient
Solution Approach 1:
The adapter is divided into fixed and movable portions that work together to provide complete coverage. The fixed portion provides stable isolation coverage, while the movable portion extends coverage to match the movable member's movement, ensuring continuous isolation without requiring the entire adapter to be long.
Solution Approach 2:
The movable portion dynamically adjusts the adapter's coverage length according to the movable member's position. This allows the adapter to provide sufficient isolation coverage only when needed, avoiding unnecessary length that would cause interference while maintaining effective isolation throughout the movable member's range of motion.
Data Source
AI summary
An aspect of the present invention provides a drape unit that is disposed between a medical robot holding a surgical instrument and the surgical instrument to isolate the surgical instrument and the medical robot from each other. The drape unit transmits power in a forward/backward direction from a power transmission part of the medical robot to a movable part provided in the surgical instrument. The drape unit comprises: a movable intervening part that receives the power from the power transmission part; and a fixed intervening part that is detachably attached to the medical robot. The fixed intervening part has a through-hole through which a part of the movable intervening part is inserted. The fixed intervening part has a housing portion that covers a part of the movable intervening part as viewed in a penetrating direction of the through-hole when the movable intervening part moves to an end portion in the forward/backward direction. It is thereby possible to sufficiently isolate a clean area and an unclean area from each other and improve the operability of surgery.