Rotatable Compression Device for Tangential Puncture-Site Hemostasis
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Solution Overview
Problem
Existing compression devices for puncture sites, such as those described in JP 2005-521464 A, face challenges in effectively narrowing or obstructing perforations due to orthogonal compression direction, which hampers efficient hemostasis.
Innovation Solution
A compression device with a rotatable compression portion and inflatable components that compress the puncture site along the biological surface, allowing for adjustable and targeted pressure application to facilitate hemostasis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If compression is applied in a direction substantially orthogonal to the biological surface, then the compression device can be简单易操作, but it is difficult to narrow or obstruct the perforation at the puncture site
Solution Approach 1:
The compression portion is designed to be rotatable around a rotational axis, allowing dynamic adjustment of the compression direction. This enables the device to transition from orthogonal compression to tangential compression along the biological surface, resolving the contradiction between ease of operation and hemostasis effectiveness by providing adaptive compression orientation.
Solution Approach 2:
The invention changes the compression direction parameter from orthogonal to the biological surface to tangential along the biological surface. This parameter change allows the compression force to be applied in a direction that effectively narrows or obstructs the perforation while maintaining ease of operation through the rotatable mechanism.
2Device complexity
If the compression portion is fixed in position, then the device structure is simple, but it cannot provide adjustable and targeted pressure application to the puncture site
Solution Approach 1:
The compression portion is made rotatable around a rotational axis rather than being fixed, providing adjustable and targeted pressure application to the puncture site. This dynamic element enables the compression force to be directed precisely at the perforation site while maintaining relatively simple device structure through the use of a single rotational degree of freedom.
3Ease of manufacture
If compression is applied orthogonal to the biological surface, then the compression device can be简单易制造, but it may obstruct underlying vessels while attempting to compress the puncture site
Solution Approach 1:
The invention changes the compression direction parameter from orthogonal to the biological surface to tangential along the biological surface. This parameter change allows effective compression of the puncture site while reducing the risk of obstructing underlying vessels, as the compression force is applied parallel to the surface rather than perpendicular to it.
Solution Approach 2:
The compression force is applied in a different dimensional orientation - along the surface plane rather than perpendicular to it. This dimensional change in force application allows the device to compress the puncture site effectively without pressing down on underlying vessels, thus avoiding vessel obstruction while maintaining ease of manufacture.
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 efficiently narrows or obstructs puncture site perforations without obstructing underlying vessels, enhancing hemostasis by providing adjustable and biologically conforming pressure application.
Implementation Method 1
the inflatable compression body is inflated to protrude further toward the downward direction A1 than the lower surface 12 of the adhesion sheet 14, so that the perforation at the puncture site can be narrowed or obstructed
Data Source
Figure 1
Figure 2~3
Figure 4A
AI summary
A compression device according to the present disclosure includes a main body portion that is fixable to a biological surface; a compression portion configured to compress the biological surface; a hinge portion that supports the compression portion so as to be rotatable around a rotational axis with respect to the main body portion; and a pressing portion configured to press the compression portion in one rotational direction around the rotational axis. The compression portion rotates around the rotational axis to be configured to compress the biological surface.