Product & Tooling Development of a Silicone Incontinence Device for the Medical Industry

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Silicone Incontinence Device

Lenard Tool & Machine, Inc. (LTM) was contacted by a medical industry customer to provide a production molding solution for the silicone incontinence device highlighted here. LTM's pre-design work revealed that a unique reverse engineering approach would be necessary to create a high-performance mold system for the complex silicone device.

Design work started in earnest with analysis of customer-provided models, drawings, and molds. The silicone device would require steel insert pieces as well as supporting wirework, all coated in silicon casting. With consultation from the molder, LTM developed a horizontally oriented injection mold that utilized heated cavity plates and shuttling cores. Pre-hardened 420 stainless steel was selected for the cavity plates, with the cores constructed out of plated 1144 steel.

For fabrication of the production mold LTM utilized CNC-type milling and turning, electrical discharge machining (EDM) and gun drilling. These processes were followed by refinement through surface grinding and bead blasting, operating under tolerances of ±0.005." A comprehensive evaluation of geometrical accuracy and function concluded the fabrication phase.

Delivering in a speedy 6 months, LTM brought to the customer an efficient and cost-effective solution for production of the silicone incontinence device. The end-result was a high-performance injection molding system that had been born from the experience driven engineering foundation necessary for such a reverse engineering project.

Experiences such as this one are not exceptions at LTM; they are the rule. Tremendously high quality, long lasting, and financially smart production molding solutions are available to all. Contact LTM today to learn even more.

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product development highlights of a silicone incontinence device

Project Scope
Product and tooling development for a silicone incontinence device for the medical industry.
Mold Engineering Capabilities Applied/Processes
Reverse Engineering
Mold Tooling Design
Mold Tooling Production
Product Design and Engineering – Modeling
Equipment Used to Manufacture Part
CAD & CAM software, CNC milling, CNC turning, EDM, surface grinding, gun drilling, bead blasting.
Overall Part Dimensions
OD: Ø 1.35”
Length: 6”
Tightest Tolerances
± 0.005”
Material Used
Mold: 420 Stainless Steel pre-hard cavity plates
Plated 1144 cores
Product: Silicone
Material Finish
Additional Facts
Prototype & production molds, designed for 2 stages of molding, included over-molding steel inserts with attached wires.
In process testing/inspection performed
Dimensional Inspection
Functionality Checks
Industry for Use
Medical Industry
Delivery/Turnaround Time
6 Months
Delivery Location
Standards Met
Customer Satisfaction
Product Name
Silicone Incontinence Device

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