Self-Locking Connector Block for Pulse Generator Lead Pin
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Solution Overview
Problem
Current locking mechanisms for coupling leads to pulse generators, such as set screws, risk improper tightening leading to electrical disconnection or damage, and are complex to use, especially when replacing pulse generators.
Innovation Solution
A self-locking connector block with a housing, plunger, and biasing member that mechanically and electrically secures the lead pin, using a spring or resilient material to maintain the connection without the need for set screws, allowing easy insertion and removal of leads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If set screws are used to secure the lead pin, then the connection can be tightened, but improper tightening may cause electrical disconnection or damage
Solution Approach 1:
The connector block performs the locking function automatically through its internal mechanism. When the lead pin is inserted, the biasing member automatically engages with the lead pin to secure it in place, eliminating the need for manual tightening operations by the user.
Solution Approach 2:
The manual set screw tightening mechanism is replaced with an automatic spring-based locking mechanism. The biasing member provides continuous mechanical force to maintain the locked position, substituting the need for user-operated screws with an self-actuating mechanical system.
2Reliability
If set screws are used to secure the lead pin, then the connection can be tightened, but the structure becomes complex
Solution Approach 1:
Multiple functions are combined into a single integrated connector block structure. The housing, biasing member, and locking surfaces are merged into one component assembly that performs both structural support and automatic locking functions, reducing the number of separate parts needed.
Solution Approach 2:
The complex set screw tightening mechanism is extracted and replaced with a simpler spring-based biasing system. Only essential components (housing, biasing member, and locking surfaces) are retained, eliminating unnecessary mechanical elements.
3Reliability
If a secure lock is used to prevent lead disconnection, then connection reliability improves, but the ease of replacing pulse generators decreases
Solution Approach 1:
The connector transitions from a static locked position to a dynamic unlocked position when force is applied. The biasing member allows the lead pin to be securely held during normal operation but enables easy release when sufficient force is applied to overcome the spring bias, facilitating quick replacement.
Solution Approach 2:
The connector is designed to be unlocked before lead replacement is needed. The biasing member maintains readiness to release the lead pin, and the plunger can be positioned in advance to facilitate quick insertion or removal of leads when required.
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
Eliminates risks of improper tightening and simplifies the coupling process, ensuring reliable electrical connections while allowing for easy replacement of pulse generators without damaging existing leads.
Implementation Method 1
The biasing member is adapted to engage the second section of the plunger to bias the plunger into a locked position
Implementation Method 2
A lead pin extending through the pin receiver openings of the housing and the pin receiver orifice of the plunger is pinched between surfaces of the housing and the plunger when the plunger is in the locked position
Data Source
Figure 1~4
Figure 5~7
AI summary
A connector for electrically and mechanically coupling a lead pin to a pulse generator that includes a housing and a plunger having openings which can be aligned in an unlocked position to permit insertion and retraction of the lead pin. The connector also has a biasing member which moves and then holds the plunger in a locked position relative to the housing such that the housing and plunger pinch the lead pin thereby coupling the lead pin to the connector.