Blood Pressure Cuff Clamp Mechanism with Friction Slide Bar
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Solution Overview
Problem
Conventional blood pressure measurement cuffs require complex and inconvenient procedures to compress the arm, involving multiple steps and operations.
Innovation Solution
A blood pressure measurement cuff with a clamp mechanism that includes a first and second curved clamp portion, a slide hole, and a slide bar, allowing for simple attachment and detachment by sliding the bar through the hole, with frictional forces maintaining the compressed state during measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamp mechanism with multiple components (fixing screw, adjuster scale, adjuster portion, fixed plates) is used to compress the measurement site, then reliable compression is achieved, but the number of operations required increases and ease of operation deteriorates
Solution Approach 1:
The clamp mechanism is divided into two main clamp portions (first and second) that can be independently positioned and connected, allowing simplified attachment while maintaining compression reliability through the modular structure
Solution Approach 2:
The slide bar is inserted into the slide hole of the other clamp portion, with one end of the slide bar fitting into the slide hole and sliding with friction, creating a nested connection that simplifies the attachment process while maintaining secure compression
2Stability of the object's composition
If a traditional hemostasis tool design is adapted for blood pressure measurement, then structural stability is improved, but device complexity increases
Solution Approach 1:
The fixing screw and adjuster scale components are removed from the design, extracting only the essential clamping function and implementing it through a simpler slide bar and slide hole mechanism that maintains structural stability without the complexity of traditional adjustment systems
Solution Approach 2:
Instead of using a fixing screw to adjust and lock the clamp portions, the invention inverts the approach by using a slide bar that slides with friction into a slide hole, where the friction itself provides the locking mechanism, simplifying the overall structure while maintaining stability
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
Enables easy and efficient attachment and detachment of the cuff, reducing the number of operations required and ensuring a secure, reliable compression for accurate blood pressure measurement.
Implementation Method 1
the slide bar extends from one end portion of the second clamp portion corresponding to the one end portion of the first clamp portion and into the slide hole of the first clamp portion, fits therein, and slides with friction with respect to the slide hole
Data Source
AI summary
A blood pressure measurement cuff includes a clamp mechanism that sandwiches a measurement site. The clamp mechanism includes a first clamp portion having a shape that is curved along a first half of the measurement site and a second clamp portion having a shape that is curved along a second half of the measurement site. The slide hole is formed penetrating through one end portion of the first clamp portion. The slide bar extends from the one end portion of the second clamp portion and into the slide hole, fits therein, and slides with friction with respect to the slide hole. The slide hole and the slide bar are curved so as to protrude on a side near other end portions of the first clamp portion and the second clamp portion.