Medical Handling Device Cannula Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical handling devices for blood and fluid sampling require complex assembly processes and additional components, leading to increased production costs, safety risks, and downtime due to the need for intermediate parts and adhesive application.
Innovation Solution
A handling device design where the cannula is integrated directly into the main body part, eliminating the need for separate components by using a holding element with a retaining protuberance and perforation on the front wall, allowing for a force-closed or positive connection and simplifying the injection molding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cannula is connected to the front wall using intermediate parts and adhesive application, then the connection is secure, but the production complexity increases and process safety decreases
Solution Approach 1:
The patent integrates the cannula connection directly into the front wall structure by forming a receiving opening that accepts the cannula without requiring separate intermediate parts or adhesive application. This merging of functions eliminates multiple components and simplifies the assembly process while maintaining secure connection through the integrated structural design.
2Reliability
If additional components are used for cannula holding, then the holding security is improved, but the acquisition costs and operating costs increase
Solution Approach 1:
The holding function for the cannula is integrated directly into the front wall through the receiving opening design, eliminating the need for separate holding components. This reduces the total number of parts while maintaining secure holding through the structural integration of the front wall and cannula interface.
3Reliability
If complex assembly processes are used, then the connection reliability is improved, but the production time and downtime increase
Solution Approach 1:
The receiving opening is pre-formed in the front wall during the molding process, allowing the cannula to be directly inserted and secured without requiring subsequent assembly steps such as adhesive application or separate fastening operations. This preliminary formation of the connection interface significantly reduces production time while maintaining connection reliability.
4Strength
If intermediate parts and adhesive application are used, then the connection strength is improved, but the process safety and manufacturing simplicity decrease
Solution Approach 1:
The connection structure is integrated into the front wall through a pre-formed receiving opening that mechanically secures the cannula without requiring adhesive application or intermediate parts. This integration maintains connection strength through direct structural support while significantly simplifying the manufacturing process by eliminating chemical bonding steps and additional components.
Data Source
AI summary
A handling device for medical technology includes a main body part and a front wall which define a receiving space. A cannula protrudes with its proximal cannula end into the receiving space. A hose-like sleeve is held with its distal sleeve end on at least one holding element of the holding device, which holding element is formed or arranged directly on the front wall. The holding element bears externally on the sleeve in a contact area. Moreover, a method produces a handling device of this type.