Medicated Thread Drainage for Postoperative Pain and Thrombosis

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Solution Overview

Problem

Current postoperative pain relief methods cause side effects such as deep venous thrombosis and slow wound recovery due to inadequate extraction of hydrops and damaged tissue factors, and limitations in negative pressure drainage techniques.

Innovation Solution

A medicated thread drainage treatment device that offers multiple pain relief modes, promotes wound healing, and prevents deep venous thrombosis through comprehensive drainage with electric energy, medicated threads, and negative pressure, along with electrical stimulation and blood coagulation factor decomposition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If oral administration, vein, intramuscular injection, spinal canal, and analgesic pump are used for postoperative pain relief, then pain relief is achieved, but side effects such as drowsiness, muscular relaxation, and deep venous thrombosis occur

Engineering Contradiction:

Improvepain relief effectivenessVSAvoidside effects including drowsiness and deep venous thrombosis

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention extracts and removes hydrops and damaged tissue factors from the subcutaneous operative area through negative pressure drainage and medicated thread infiltration, preventing their circulation to lower extremities. This extraction approach addresses the root cause of deep venous thrombosis and fat embolism while providing local pain relief without systemic side effects.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention uses medicated threads as an intermediary carrier that delivers therapeutic agents directly to the wound site through infiltration and negative pressure drainage. This localized delivery system provides pain relief and promotes wound healing without requiring systemic drug administration, thereby avoiding drowsiness and muscular relaxation side effects.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If negative pressure drainage is used to dispose operative wounds, then wound cleaning is achieved, but drainage pipes may be blocked by tissue coagulation or hindered by wound direction, causing pain and reducing effectiveness

Engineering Contradiction:

Improvewound disposal capabilityVSAvoiddrainage effectiveness and pain avoidance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The invention segments the drainage function by using multiple fine medicated threads instead of a single large drainage pipe. These threads can be distributed throughout the wound cavity following its complex geometry, ensuring effective drainage in all directions without blockage from tissue coagulation. Each thread acts as an independent drainage pathway.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using negative pressure to pull fluids through a pipe against tissue coagulation barriers, the invention inverts the approach by using medicated threads that actively penetrate and dissolve coagulated tissue, converting the obstruction into a permeable medium that facilitates drainage.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of manufacture

If traditional wound disposal methods (disinfection and gauze changing) are used, then basic wound care is provided, but hydrops and damaged tissue factors cannot be extracted, leading to circulation to lower extremities and causing deep vein thrombosis and fat embolism

Engineering Contradiction:

Improvewound care simplicityVSAvoiddeep vein thrombosis and fat embolism risk

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the passive mechanical system of gauze absorption with an active negative pressure drainage system combined with medicated thread infiltration. This system actively extracts hydrops and damaged tissue factors from the wound cavity, preventing their entry into blood circulation and subsequent formation of deep vein thrombosis and fat embolism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12232932B2Medicated thread drainage therapy apparatus

Publication Date: 2025.02.25 LONG DAN

AI summary

The present disclosure belongs to the field of treatment devices, and specifically relates to a medicated thread drainage treatment device. The treatment device includes a first treatment unit used for postoperative pain relief and drainage; a second treatment unit used for promoting quick healing of a wound; a third treatment unit used for preventing deep venous thrombosis; and an electropneumatic, negative-pressure, electric stimulation multipurpose therapy apparatus connected with the first treatment unit, the second treatment unit, and the third treatment unit and providing electropneumatic pressure, negative pressure, and electric energy. The present disclosure is used for postoperative quick healing and recovery; promotion of clinical use guidelines will greatly reduce and even eliminate the postoperative complications, particularly postoperative complications of pulmonary embolism, thus saving patients' lives.