Intravascular Blood Pump Motor Cable Assembly for Short Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Intravascular blood pumps face challenges with motor failure and complex assembly processes, which can pose risks to patients and complicate replacement procedures.
Innovation Solution
The implementation of a motor cable with a tail and head portion, featuring a stator with one or more coils and electrical conduits, reduces the risk of shorting and simplifies assembly by using star, delta, or open end windings circuit configurations, and includes conductive layers separated by insulating layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional motor cables are used in intravascular blood pumps, then the assembly process becomes complex and the risk of electrical shorts increases, but the motor cable structure must remain compact enough for intravascular implantation
Solution Approach 1:
The patent combines multiple electrical conduits into a single integrated motor cable assembly with a unified insulating structure. The cable integrates power delivery, signal transmission, and insulation functions into one component, eliminating the need for separate insulating materials and reducing assembly steps while preventing electrical shorts between conduits.
Solution Approach 2:
The patent introduces a centralized insulating layer as an intermediary structure that separates all electrical conduits from each other and from the motor housing. This insulating mediator prevents electrical shorts without requiring complex routing or additional insulation at multiple connection points, simplifying the overall assembly process.
2Ease of manufacture
If multiple separate electrical conduits are used for motor power delivery, then electrical shorts between conduits may occur, but using a single integrated cable increases assembly simplicity
Solution Approach 1:
The patent merges multiple electrical conduits into a single integrated cable assembly where all conductors are bundled together with a common insulating structure. This unified design simplifies manufacturing and assembly while the insulating layer maintains reliable electrical separation between all conduits throughout the cable length.
Solution Approach 2:
The patent segments the cable into distinct functional regions: a central insulating core that separates individual electrical conduits, an intermediate layer providing additional insulation and structural support, and an outer protective jacket. This segmentation ensures electrical isolation while maintaining assembly simplicity through modular construction.
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 improved motor cable design enhances the reliability of intravascular blood pumps by reducing the risk of electrical shorts and simplifying assembly, thereby improving patient safety and operational efficiency.
Implementation Method 1
The stator of the motor includes one or more coils and is configured to generate a rotating magnetic field in response to receiving one or more electrical signals at the one or more coils. The rotating magnetic field causes the rotor to rotate.
Data Source
Figure 1(a)~1(b)
Figure 1(c)
Figure 2
AI summary
Systems and methods for providing hemodynamic support to a patient with an intravascular blood pump are disclosed. In some implementations, the blood pump includes a motor and an improved motor cable for delivering electrical power to the motor. The motor includes a stator with one or more coils. The motor cable includes one or more electrical conduits. The motor cable also includes a tail portion and a head portion. In some implementations, the head portion may have an O-shape or a C-shape. The motor cable may reduce the complexity of assembling the blood pump. For example, the motor cable may reduce the risk of shorting the one or more coils and/or the one or more electrical conduits.