Fixable Degassing Trocar With Dual-Flap Sealing for Continuous Access

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Solution Overview

Problem

Existing trocars for animals suffer from repeated penetration requirements, leading to leakage and infection risks, and lack continuous access for gas release and medication delivery.

Innovation Solution

A fixable degassing trocar with slit flaps that inflate inside and outside the animal's stomach and skin, providing constant access and preventing leakage through a dual fixation mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a simple tubing trocar is used for penetration, then the procedure is simple and quick, but it requires repeated procedures for recurrent bloating and causes leakage and infection risks

Engineering Contradiction:

Improvesimplicity of procedureVSAvoidconstant access and prevention of leakage/infection

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The trocar system employs dynamic elements including inflatable balloons that can be expanded to seal the stomach opening, and a flexible cannula that can move and adapt within the stomach cavity. This dynamic design allows the simple tubing trocar to transform from a static penetration device into an adaptive system that maintains constant access while preventing leakage and infection through inflatable sealing mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The trocar system implements a nested structure where the flexible cannula is inserted through the tubing trocar, and inflatable balloons are positioned within the cannula. This nested arrangement allows multiple functions (penetration, sealing, gas release, medication delivery) to be integrated into a single device that can be inserted through one procedure, eliminating the need for repeated penetrations while maintaining constant access.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If the trocar is removed after the procedure, then the risk of infection is reduced, but constant access cannot be maintained for recurrent bloating

Engineering Contradiction:

Improveinfection riskVSAvoidtime for repeated procedures

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The trocar system performs preliminary action by establishing a sealed, controlled access pathway through the skin and stomach wall with anti-infection measures in place before any treatment is administered. The inflatable balloons create a seal that prevents contamination, and the system remains in position to allow multiple treatments (gas release, medication delivery) without requiring new penetration procedures, thus preventing infection while enabling constant access.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The trocar system enables continuous useful action by maintaining an open, sealed pathway from the external environment to the stomach cavity. The flexible cannula can move freely within the stomach to release gas or deliver medication, while the inflatable balloons maintain the seal continuously. This allows multiple therapeutic actions to be performed through a single insertion, eliminating the need for repeated procedures and reducing both infection risk and time loss.

Inventive Principle:

Principle #20Continuity of useful action

3Adaptability or versatility

If a flexible cannula is used to increase mobility inside the body, then operating limits are improved, but the device complexity increases

Engineering Contradiction:

Improvemobility inside the bodyVSAvoidstructure of trocar

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The trocar system incorporates a flexible cannula made from flexible material that can bend and move within the stomach cavity, providing increased mobility and adaptability for gas release and medication delivery. This flexible shell design allows the cannula to navigate the curved anatomy of the stomach without requiring complex mechanical joints or articulation mechanisms, thus improving versatility while keeping the overall device structure relatively simple.

Inventive Principle:

Principle #30Flexible shells and thin films

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 continuous access to the stomach for gas release and medication delivery without repeated procedures, reducing infection risk and ensuring secure fixation.

Implementation Method 1

slit flaps I (11) located on the surface of the flexible outer tube (10), which inflate inside the stomach of the animal with the drill shaft (7) and the outer tube (10) pulled in opposite directions, slit flaps II (12) located on the surface of the flexible outer tube (10), which inflate on the skin of the animal

Methodology Applied

Scientific EffectInflation:

Data Source

PatentUS12629241B2Fixable degassing trocar

Publication Date: 2026.05.19 SELCUKLU VETERINER HAYVANCILIK ITH IHRA TIC SAN STI

AI summary

This invention is a degassing cannula for veterinary use and refers to a stationary or fixable trocar used to release the gas that builds up in the stomach of farm animals and provide medication, water and food to the animal during or after the treatment.