Hemostatic Device with Adjustable Band Bodies for Puncture Site Adaptation

Solution Overview

Problem

Existing hemostatic devices have limited flexibility in accommodating varying hand anatomies and puncture site locations, leading to potential positional deviations and instability during hemostasis procedures.

Innovation Solution

A hemostatic device with a pressing member and adjustable band bodies that can be connected to hole portions of varying sizes and shapes, allowing radial angle changes to securely position the device on the patient's hand without restricting hand movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the winding band body is wound at a fixed position on the hand, then the device structure is simple, but the device cannot adapt to different puncture site positions and hand anatomies

Engineering Contradiction:

Improveadaptability to different puncture site positionsVSAvoiddevice structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support member is divided into multiple regions (first region for pressing portion, second region for band body connection, third region for additional fixation) with each region serving a specific function. This segmentation allows the device to adapt to different anatomical positions while maintaining structural clarity and avoiding excessive complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support member serves multiple functions: it holds the pressing portion, provides attachment points for band bodies at various positions, and enables adaptation to different hand anatomies. This multi-functionality allows a single device structure to handle various puncture site positions without requiring multiple specialized devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the band bodies are fixed to the pressing member at a fixed connection position, then the manufacturing is simple, but the device has low degree of freedom in hand mounting position

Engineering Contradiction:

Improvedegree of freedom in hand mounting positionVSAvoidmanufacturing simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The support member is divided into multiple regions (first region for pressing portion, second region for band body connection, third region for additional fixation) with each region serving a specific function. This segmentation allows the device to adapt to different anatomical positions while maintaining structural clarity and avoiding excessive complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The band bodies are designed to be adjustable and repositionable on the support member rather than fixed at predetermined positions. This dynamic configuration allows the operator to optimize the mounting position according to the patient's hand anatomy and puncture site location, increasing the degree of freedom in hand mounting position.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the winding band body is wound closer to the peripheral side of the hand, then the device can accommodate puncture sites peripheral to the snuff box, but the hand movement is restrained and the band body deviates from the hand

Engineering Contradiction:

Improveaccommodation of different puncture site locationsVSAvoidhand movement freedom

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The support member is divided into multiple regions (first region for pressing portion, second region for band body connection, third region for additional fixation) with each region serving a specific function. This segmentation allows the device to adapt to different anatomical positions while maintaining structural clarity and avoiding excessive complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the support member have different properties and functions optimized for their specific purposes. The first region provides stable pressing, the second region allows flexible band body attachment, and the third region provides additional fixation points. This local optimization allows the device to accommodate peripheral puncture sites while minimizing restriction of hand movement through strategic placement of fixation elements.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20230201555A1Hemostatic device

Publication Date: 2023.06.29 TERUMO KK

AI summary

A hemostatic device is disclosed that includes a pressing member including a pressing portion configured to compress a first puncture site formed in a patient and a support member configured to fix the pressing portion. The support member has a first region where the pressing portion is disposed and a second region positioned outside the first region and configured such that a first band body, a second band body, and a third band body are connectable. At least two of a plurality of hole portions provided in the second region, such that any of the first band body, the second band body, and the third band body connected to the hole portions can be disposed so as to radially change in angle about the pressing portion positioned in the first region, are larger than the widths of the band bodies and configured in a non-linear shape.