Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Filtering Polymer Material with Tip-Mesh

IP.com Disclosure Number: IPCOM000022014D
Publication Date: 2004-Feb-18
Document File: 2 page(s) / 98K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses a connector with an embedded small mesh between the syringe and tip cap (called a tip-mesh); the tip-mesh captures large contaminated particles in the syringe. Benefits include filtering before filling the dispensing equipment.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 99% of the total text.

Filtering Polymer Material with Tip-Mesh

Disclosed is a method that uses a connector with an embedded small mesh between the syringe and tip cap (called a tip-mesh); the tip-mesh captures large contaminated particles in the syringe. Benefits include filtering before filling the dispensing equipment.

Background

It is important to prevent large particles from contaminating the polymer material in the assembled package. Contamination leads to lower assembly yields because the flow of liquid polymer material is restricted.

Currently, there is a filtering process at each supplier to remove large particles from the polymer material; however, large particles can still contaminate the polymer material (i.e. post-filtration) through the inner surface of syringes during storage.

General Description

The disclosed method uses a small tip-mesh embedded inside a connector. Once the polymer material arrives at the assembly site, the tip-cap is removed from each packing configuration (Figure 1), the tip-mesh/connector is inserted then the tip-cap is replaced so that the tip-mesh is positioned between the syringe and the tip-cap. With the tip-mesh in place, large particles are contained in the syringe; they cannot be dispensed into the corresponding polymer material.

Advantages

The following are advantages of the disclosed method:

 

  • It is disposable, avoiding lot-to-lot contamination.
  • It can accommodate a variety of hole sizes.
  • It can use a variety of course or fine meshes.

Fig. 1

Disclosed an...