Adjustable Nozzle Head for Precise Jet Convergence

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Solution Overview

Problem

Existing surgical instruments with converging jets face challenges in adjusting the position of the convergence point and are complex to produce, leading to high production costs and limited flexibility in adjusting the cutting and dissection zones.

Innovation Solution

A nozzle head with adjustable positioning elements for each outlet port, allowing independent adjustment of the convergence point and jet angles, housed within a casing to facilitate precise control over the convergence point and jet orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If fixed nozzle arms are used to produce converging jets, then the device can generate two jets of pressurized fluid, but the arrangement becomes bulky and compromises compactness

Engineering Contradiction:

Improvenumber of jetsVSAvoiddevice compactness

Core Design Contradiction:

Quantity of substanceVSVolume of moving object

Solution Approach 1:

The patent merges multiple nozzle functions into a single integrated nozzle head housing, where multiple outlet ports are arranged to converge jets at a common point without requiring separate nozzle arms. This consolidation eliminates the bulky arrangement of separate arms while maintaining the capability to generate multiple converging jets.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The outlet ports are arranged in three-dimensional space within the nozzle head housing, allowing jets to converge at a common point through spatial optimization rather than requiring extended arm structures. This dimensional arrangement achieves jet convergence while maintaining compact device volume.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If separate nozzle arms are used for each jet, then two jets of pressurized fluid can be formed, but adjustment of the convergence point is limited to a fixed plane

Engineering Contradiction:

Improvenumber of jetsVSAvoidconvergence point adjustment flexibility

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent incorporates adjustable positioning elements that allow dynamic repositioning of outlet ports within the nozzle head housing. This enables the convergence point to be adjusted in multiple directions and planes, transforming the fixed-geometry system into an adaptable one that can be configured for different surgical requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The nozzle head is segmented into adjustable positioning elements for each outlet port, allowing independent adjustment of each jet's orientation and convergence point. This segmentation provides versatility in positioning while maintaining a compact integrated structure.

Inventive Principle:

Principle #1Segmentation

3Manufacturing precision

If precise positioning of nozzle arms is required, then two jets can converge at a common point, but the device becomes complex to manufacture

Engineering Contradiction:

Improvejet convergence precisionVSAvoidmanufacturing complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces adjustable positioning elements as intermediary components between the nozzle housing and outlet ports. These elements provide built-in adjustment mechanisms that simplify manufacturing by eliminating the need for extremely precise fixed positioning, while still achieving accurate jet convergence through the adjustable components.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Ease of manufacture

If fixed outlet port positions are used, then the nozzle head is simple to manufacture, but adjustment of the convergence point and jet angles is limited

Engineering Contradiction:

Improvenozzle head manufacturing simplicityVSAvoidconvergence point and jet angle adjustment

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent transforms the static outlet port arrangement into a dynamic system with adjustable positioning elements. These elements allow the nozzle head to be manufactured with standard tolerances while providing post-manufacturing adjustability of jet angles and convergence point position, combining manufacturing simplicity with operational versatility.

Inventive Principle:

Principle #15Dynamics

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

Enables flexible and precise adjustment of the convergence point and jet angles, reducing production complexity and costs while enhancing the surgical instrument's performance in cutting and dissecting tissue.

Implementation Method 1

a nozzle head configured to produce at least two jets of pressurized fluid converging to a common convergence point

Methodology Applied

Scientific EffectFluid jet convergence: Jet

Implementation Method 2

jets of pressurized fluid

Methodology Applied

Scientific EffectFluid pressure: Pressure Increase

Data Source

PatentUS12453573B2Jet-producing nozzle head and apparatus comprising the same

Publication Date: 2025.10.28 AAPA HLDG SÀRL

AI summary

A nozzle head configured to produce at least two jets of pressurized fluid converging to a common convergence point, said the head including a casing housing at least two outlet ports that are each configured to produce a corresponding one of the jets of pressurized fluid. At least one of the outlet ports, and preferably each of the outlet ports, is formed on an adjustable positioning element housed within the casing and whose position can be adjusted to control an angle of the resulting jet of pressurized fluid, and thereby allow adjustment of a position of the convergence point.