Wearable Vacuum Pump Housing for One-Hand Vessel Release

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Solution Overview

Problem

Existing devices for vacuum therapy of wounds are not user-friendly, particularly in terms of handling and disposal, as they require two-handed operation and do not facilitate easy separation and disposal of the vessel containing body fluids.

Innovation Solution

The device features separable housing parts with snap-in or latching mechanisms that can be released with a single hand, allowing for one-handed operation, disposal, and includes ergonomic design elements such as gripping cavities and beveled surfaces for comfortable wear and easy access to operating elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the housing parts are fixed securely to each other, then the device maintains structural stability during use, but it becomes difficult to separate and dispose of the vessel

Engineering Contradiction:
Improvestructural stabilityVSAvoidseparation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device is divided into separable housing parts (first housing part containing vacuum-producing facility, second housing part containing vessel) that can be easily separated. The segmentation allows the vessel to be disposed of independently while maintaining structural integrity during use through positive-action locking mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism transitions from a static secure connection to a dynamic state where it can be easily released. The positive-action locking means with manually operable release elements enable the connection to switch between a secure locked state during operation and an easily separable state for disposal.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the device requires two-handed operation for securing and releasing, then the locking mechanism is secure, but the ease of operation is reduced

Engineering Contradiction:
Improvelocking securityVSAvoidhand operation requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking and releasing mechanism is designed to be self-sufficient with manually operable release elements that can be actuated by a single hand. The positive-action locking means automatically secures the housing parts when joined, and the release elements allow single-handed operation without requiring assistance or complex manual dexterity.

Inventive Principle:
Principle #25Self-service

3Device complexity

If the vessel is permanently attached to the housing, then the device structure is simplified, but the hygiene and disposal efficiency are compromised

Engineering Contradiction:
Improvestructural simplicityVSAvoiddisposal efficiency
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The vessel is housed in a separate second housing part that can be easily separated from the first housing part containing the vacuum-producing facility. This segmentation enables independent disposal of the contaminated vessel while maintaining a relatively simple overall device structure through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design facilitates the discarding of the single-use vessel after use. The separable housing parts allow the vessel to be easily removed and disposed of as a single unit, improving hygiene and disposal efficiency without significantly increasing device complexity.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS8657806B2Device suitable for carrying on the body of a user to generate vacuum for medical applications
Publication Date: 2014.02.25 PAUL HARTMANN AG
  • US8657806B2 patent drawing
  • US8657806B2 patent drawing
  • US8657806B2 patent drawing

AI summary

A device for carrying on the body of a user to generate a vacuum for medical applications, having a vacuum-producing device and a disposable vessel, with a suction tube connection leading to Ihe body, wherein the vacuum-producing device is disposed in a first housing part of the device and the vessel forms a second housing part of the device, and the housing parts are separably fixed one against the other, the device having body fastening means. The housing pans can be separably fixed to each other by a positive-action locking mechanisms and the locking mechanism having a manually operable operating element. The first and/or second housing part is constituted for manual gripping so that the device or the first or second housing part can be gripped and separated from the other housing part, and the manually operable operating element is provided in the region of the manual gripping.