Coiled Anchor Device for Minimally Invasive BPH Treatment

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Solution Overview

Problem

Current treatments for Benign Prostatic Hyperplasia (BPH) are associated with high risks of adverse effects, require invasive procedures, and offer suboptimal symptom relief, often necessitating hospital stays and prolonged recovery times, with existing methods either being invasive or providing limited reduction in symptom scores.

Innovation Solution

The development of an anchor assembly with a distal and proximal component that can be implanted within the body to apply tension between anchor components, allowing for minimally invasive tissue approximation, compression, or repositioning, specifically designed for treating BPH by compressing the prostate gland to relieve urethral obstruction, using a suture-based system that can be deployed through small incisions or without hospitalization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional surgical treatments for BPH are used, then symptom relief is achieved, but invasive procedures and hospital stays are required

Engineering Contradiction:
Improvesymptom relief effectivenessVSAvoidinvasiveness of procedure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anchor device is divided into multiple segments including a coiled anchor portion and a tail section, allowing minimally invasive insertion through the urethra while maintaining effective compression capability. The segmented structure enables the device to be delivered through small catheters without requiring open surgery.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coiled anchor is designed with a nested structure where the coil winds around a central core, allowing compact delivery through thin catheters. The coiled configuration enables the anchor to expand to its full functional size after deployment, providing effective prostate compression while maintaining minimally invasive delivery.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If traditional surgical treatments for BPH are used, then symptom relief is achieved, but prolonged recovery times occur

Engineering Contradiction:
Improvesymptom relief effectivenessVSAvoidrecovery time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The coiled anchor utilizes the body's natural urinary flow to achieve its therapeutic effect. The compression force is automatically applied as urine flows through the constrained urethra, eliminating the need for external power sources or complex activation mechanisms. This self-actuating design simplifies the procedure and reduces recovery time.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If existing BPH treatments are used, then some symptom relief is provided, but adverse effects are common

Engineering Contradiction:
Improvesymptom reliefVSAvoidadverse effects
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The coiled anchor acts as an intermediary device that mechanically compresses the prostate gland to relieve urethral obstruction. This mechanical compression approach avoids the chemical side effects of medications and the tissue damage associated with surgical resection, providing a middle-ground treatment option with fewer adverse effects.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 anchor assembly provides effective urethral opening and symptom relief by compressing the prostate gland, reducing fluid obstruction, while minimizing adverse effects and allowing for potential reversal, facilitating quicker recovery and reduced hospitalization needs.

Implementation Method 1

The coiled anchor may be formed by coiling a wire... The coiled anchor portion is configured to compress a prostate gland

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS8394113B2Coiled anchor device
Publication Date: 2013.03.12 TELEFLEX LIFE SCIENCES LLC
  • US8394113B2 patent drawing
  • US8394113B2 patent drawing
  • US8394113B2 patent drawing

AI summary

A coiled anchor that secures to a connector as part of an anchor assembly is disclosed. The coiled anchor includes windings which capture and deform the connector between the windings and prevent the connector from disengaging from the coiled anchor once engaged.