Intraventricular Heart Pump With Narrowed Outlet Head
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heart pumps are not designed to accommodate varying heart sizes and heart states, leading to inefficiencies in blood circulation assistance.
Innovation Solution
A heart pump with a fixed outlet head diameter of 14 to 16 mm and a propulsion chamber with a flared upper body, allowing efficient fluid propulsion to the aorta regardless of heart size or dilation, combined with a rotor and vanes for controlled fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the outlet head has a larger diameter to accommodate dilated hearts, then the pump can fit larger hearts, but the pump cannot be efficiently positioned near the aorta without contact
Solution Approach 1:
The outlet head has a narrowed diameter (14-16 mm) specifically at the region that contacts or approaches the aorta, while the upper body maintains a larger diameter to accommodate dilated hearts. This local differentiation allows the pump to fit large hearts while maintaining proper positioning near the aorta without contact.
2Length of moving object
If the outlet head has a smaller diameter to position close to the aorta, then the pump can be efficiently positioned, but the pump cannot accommodate dilated hearts
Solution Approach 1:
The outlet head has a narrowed diameter (14-16 mm) specifically at the region that contacts or approaches the aorta, while the upper body maintains a larger diameter to accommodate dilated hearts. This local differentiation allows the pump to fit large hearts while maintaining proper positioning near the aorta without contact.
3Adaptability or versatility
If multiple pump sizes are designed to fit different heart sizes, then each heart size can be accommodated, but the device complexity increases
Solution Approach 1:
The pump is designed with a single universal configuration featuring a narrowed outlet head (14-16 mm) and a larger upper body, allowing one design to accommodate multiple heart sizes and states (dilated or non-dilated) without requiring multiple specialized pump designs.
4Length of moving object
If the outlet head diameter is fixed at 14 to 16 mm, then efficient positioning near the aorta is achieved, but the pump may obstruct natural flow in some heart conditions
Solution Approach 1:
The outlet head has a narrowed diameter (14-16 mm) specifically at the region that contacts or approaches the aorta, while the upper body maintains a larger diameter to accommodate dilated hearts. This local differentiation allows the pump to fit large hearts while maintaining proper positioning near the aorta without contact.
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
Ensures effective blood circulation by accommodating both induced and natural flows, maintaining efficient positioning near the aorta without obstructing spontaneous flow, suitable for various heart sizes and conditions.
Implementation Method 1
a rotor (33) arranged inside the propulsion chamber to propel the fluid towards the outlet head (22)
Data Source
AI summary
A heart pump intended to be positioned in a ventricle of a heart and to generate an induced flow of fluid in the direction of the sigmoid valves; the pump includes a fixed casing provided with a top part forming a propulsion chamber for propelling the fluid towards the top end, and a bottom part, at least one side opening between the top part and the bottom part and forming a chamber for fluid inlet from the outside towards the propulsion chamber, and a power unit arranged inside the casing to drive the fluid from the side opening right up to the outlet of the propulsion chamber. The propulsion chamber includes an upper body and an outlet head; the outlet head having a narrowed external cross section with respect to an external cross section of the upper body.