Hemostatic Device with Support Member for Hand Puncture Stability
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Solution Overview
Problem
Existing hemostatic devices struggle to effectively compress and maintain compression at puncture sites on the hand, particularly due to the hand's many movable portions, leading to displacement issues during hemostasis procedures.
Innovation Solution
A hemostatic device featuring a covering member with a hole portion on the dorsal side, a pressing member for compression, a fixing member to secure the pressing member, and a support member that faces the hole portion with the dorsal side of the hand interposed, ensuring stable compression even with hand movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing arm or leg hemostatic devices are used on hand puncture sites, then compression can be applied to the puncture site, but the pressing portion is easily displaced due to hand movements such as finger flexion and extension
Solution Approach 1:
The hemostatic device is divided into multiple functional segments: a pressing member for applying compression, a support member to stabilize the pressing member, and a fixing member to secure the device. This segmentation allows each component to perform its specific function effectively, with the support member preventing displacement caused by hand movements while the pressing member maintains compression on the puncture site
Solution Approach 2:
The support member is positioned in advance to support the pressing member before hand movements occur. By pre-positioning the support structure, the device is prepared to counteract displacement forces from finger flexion and extension, ensuring the pressing member remains stable throughout the hemostasis procedure
2Reliability
If the hemostatic device is made to accommodate hand movements, then the pressing portion may remain stable, but the device structure becomes more complex
Solution Approach 1:
The support member acts as an intermediary between the pressing member and the hand. Instead of making the entire device complex to accommodate hand movements, the support member specifically mediates the interaction by providing localized support to the pressing member, preventing displacement while maintaining overall device simplicity
Solution Approach 2:
The support member provides localized support at the specific location where the pressing member contacts the hand. This localized approach stabilizes the pressing member without requiring complex structural modifications throughout the entire device, maintaining simplicity while achieving the desired 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
The device securely maintains compression at the puncture site, preventing displacement and allowing for easy mounting and effective hemostasis on hands with movable portions, ensuring consistent pressure application.
Implementation Method 1
a compression element in the shape of an inflatable bladder, adapted to provide pressure to the artery puncture site when the compression element is inflated
Data Source
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AI summary
[Problem] There is provided a hemostatic device capable of easily fixing the hemostatic device to a site where bleeding of a hand is to be stopped and maintaining a compression force of a pressing member to the site where the bleeding is to be stopped. [Solution] A hemostatic device 10 includes a covering member 110 which includes a hole portion 115 configured to be disposed at a puncture site t1 on a dorsal side Hb of a hand H of a patient, a pressing member 140 configured to compress the puncture site in a state where the hole portion is disposed at the puncture site, a fixing member 150 configured to fix the pressing member to the covering member in a state where the pressing member is disposed in the hole portion, and a support member 160 configured to support the hand of the patient when the pressing member compresses the puncture site. In the hemostatic device, at least a portion of the support member faces the hole portion with the dorsal side of the hand interposed therebetween, in a state where the covering member is disposed on the dorsal side of the hand.