Hemostatic Balloon Protrusions Uterine Contact
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Solution Overview
Problem
Conventional balloon catheters used for intrauterine hemostasis fail to achieve sufficient compression and are cumbersome to use during cesarean sections, as they do not maintain close contact with the uterus and require assistance for fluid injection, increasing the risk of infection.
Innovation Solution
A hemostatic device with a fluid-expandable balloon featuring protrusions for enhanced contact with the uterus, a blood discharge pipe, and an auxiliary fluid injection pipe that allows for easy fluid injection through a surgical incision, improving usability and reducing infection risk during cesarean sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional balloon catheter is expanded in the uterus, then it can be used for intrauterine hemostasis, but it does not maintain close contact with the uterus and cannot provide sufficient compression
Solution Approach 1:
The balloon surface is segmented into multiple protrusions that can independently contact the uterine wall, allowing better adaptation to the irregular uterine surface and maintaining close contact for effective compression
Solution Approach 2:
The protrusions on the balloon surface create a curved, non-uniform geometry that better conforms to the curved uterine wall, improving contact area and compression effectiveness compared to a smooth spherical balloon
2Reliability
If a conventional balloon catheter is used during cesarean section, then it can perform hemostasis, but it requires assistance for fluid injection and increases infection risk
Solution Approach 1:
The balloon catheter is designed with an extended injection pipe that allows the surgeon to independently inject fluid without requiring assistance from other personnel, enabling self-service operation and reducing infection risk
3Reliability
If a conventional balloon catheter is used during cesarean section, then it can perform hemostasis, but the injection pipe is extended to the lower side making it difficult to place and inject through surgical incision
Solution Approach 1:
The injection pipe is repositioned to extend upward from the top of the balloon rather than downward from the bottom, changing the spatial dimension of access and allowing easier insertion through the surgical incision site during cesarean section
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 compresses and achieves hemostasis by maintaining close contact with the uterus and allows for easy fluid injection during surgery, improving usability and reducing the risk of infection.
Implementation Method 1
a balloon which is expanded by a fluid supplied therein
Implementation Method 2
the plurality of protrusions may be formed to have a honeycomb shape in an expanded state of the balloon
Data Source
AI summary
A hemostatic device is disclosed. The hemostatic device according to an embodiment of the present invention includes: a balloon which is expanded by a fluid supplied therein; a blood discharge pipe which includes a blood inflow hole at one end and exposes the other end to a lower side of the balloon wherein a certain section of a lower side of the blood inflow hole is surrounded by the balloon; and a fluid flow pipe communicating with the inside of the balloon for supplying or discharging the fluid and extending to a lower side of the balloon. The balloon includes a plurality of protrusions that are formed to protrude outward when the balloon is expanded by the fluid.