Flexible Hemostasis Plate with Hollow Stud for Vacuum Suction
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Solution Overview
Problem
Existing devices for controlling and stopping blood flow in hemorrhagic zones, particularly in hard-to-access areas like the uterus during childbirth, face challenges in maintaining suction and holding together opposite walls of hollow organs effectively.
Innovation Solution
A device with a flexible plate and hollow stud design, featuring a sealed peripheral bearing, a bottom wall, and connection means to create a vacuum for suction, along with a hollow stud that can be filled with haemostatic glue, and a skirt with teeth for enhanced retention, and a plate with holes for simultaneous suction on opposite walls to keep them closed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction device is placed against the tissue to control blood flow, then blood flow control is improved, but the device becomes difficult to maintain and hold in position
Solution Approach 1:
The device employs a flexible plate that can be conformally placed against irregular tissue surfaces, including deep and difficult-to-access hemorrhagic zones. This flexible shell design allows the device to adapt to various anatomical geometries while maintaining effective suction contact, resolving the positioning and maintenance difficulty without compromising blood flow control effectiveness.
Solution Approach 2:
The invention transitions from traditional linear or point-based suction applications to a planar surface suction approach. The flexible plate distributes suction force across a two-dimensional area, enabling effective hemostasis in complex three-dimensional anatomical spaces while improving device stability and ease of maintenance through increased contact surface area.
2Reliability
If suction is applied to control hemorrhage in a hollow organ, then blood flow control is improved, but the ability to hold opposite walls together is reduced
Solution Approach 1:
The flexible plate is segmented into multiple functional zones: peripheral bearing means for anchoring to the organ wall, a central hollow space for suction application, and structural elements for maintaining shape. This segmentation allows simultaneous achievement of strong wall adhesion through peripheral contact and effective hemorrhage control through centralized suction, while the rigid structure maintains opposite walls together.
Solution Approach 2:
The device combines flexible materials for tissue contact with rigid structural elements for maintaining organ wall separation. This composite construction provides both the compliance needed for effective suction application and the structural strength to hold opposite walls together, resolving the contradiction between hemorrhage control and wall holding capability.
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
Effectively controls and stops blood flow by creating a vacuum to apply pressure and retain haemostatic glue, ensuring effective closure of wounds in difficult-to-reach areas and maintaining tissue integrity during hemorrhages.
Implementation Method 1
connection means arranged to connect the hollow space, externally to the flexible plate, to an external suction source to create in the hollow space a vacuum for sucking and tightly applying the surface of the fabric against the means for peripheral support
Implementation Method 2
The hollow stud can be arranged to be filled with a product such as haemostatic glue or a haemostatic product
Implementation Method 3
The hollow stud can be arranged to be filled with a product such as haemostatic glue or a haemostatic product
Data Source
Figure 1~2
Figure 3~5
Figure 6~11
AI summary
The present invention relates to a device for controlling blood flow occurring in a hemorrhagic zone (4) of a biological tissue (8), comprising a flexible plate (2), this plate being arranged to be positioned opposite this zone (4), said flexible plate comprising: peripheral support means (3) substantially sealed, adapted to be applied to the biological tissue (8) by surrounding the hemorrhagic zone; a bottom wall (5), this bottom wall (5) delimiting with the support means (3), opposite the zone (4), a hollow space (6); connecting means (14, 15) arranged to connect the hollow space (6), externally to the flexible plate (2), to an external suction source to create in the hollow space (6) a vacuum to aspirate and apply tightly the surface (7) of the tissue (8) against the peripheral support means (3);and a hollow block (11) disposed between the zone (4) and the bottom wall (5) and hollowed out in its center on the side of the zone (4) along an axis (10) substantially perpendicular to the bottom wall, and arranged to be in contact with the zone (4) when the void is created in the space (6).;