Medical device with adhesive patch and method for making same

Patent metadata

Field	Value
Publication number	US-2020397984-A1
Application number	US-202016906469-A
Country	US
Kind code	A1
Filing date	Jun 19, 2020
Priority date	Jun 21, 2019
Publication date	Dec 24, 2020
Grant date	—

Abstract

A method of manufacturing a medical device, including forming a flexible base portion to have a plurality of through-holes therethrough, placing the flexible base portion on a non-patient side of an adhesive patch with the through-holes in communication with the adhesive patch, dispensing an adhesive into the through-holes onto the adhesive patch and walls of the flexible base portion surrounding the through-holes; and curing the adhesive to form an adhesive plug mechanically bonding the flexible base portion to the adhesive patch.

First claim

What is claimed is:

1 . A method of manufacturing a medical device:
forming a flexible base portion to have a plurality of through-holes therethrough; placing the flexible base portion on a non-patient side of an adhesive patch with the through-holes in communication with the adhesive patch; dispensing an adhesive into the through-holes onto the adhesive patch and walls of the flexible base portion surrounding the through-holes; and curing the adhesive to form an adhesive plug mechanically bonding the flexible base portion to the adhesive patch.

2 . The method according to claim 1 , wherein the flexible base portion comprises thermoplastic polyurethane.

3 . The method according to claim 1 , wherein forming the flexible base portion comprises injection molding the flexible base portion.

4 . The method according to claim 3 , wherein forming the flexible base portion comprises injection molding the flexible base portion onto a rigid base portion in a second shot of a two-shot molding process.

5 . The method according to claim 1 , wherein dispensing the adhesive comprises pico jetting the adhesive into the through-holes onto the adhesive patch and the walls of the flexible base portion surrounding the through-holes

6 . An on-body medical device, comprising:
a flexible base portion having one or more through-holes therein; an adhesive patch, the flexible base portion being disposed on a non-patient side of the adhesive patch with the through-holes in communication with the adhesive patch; and an adhesive plug cured in the one or more through-holes on the adhesive patch and walls of the flexible base portion laterally surrounding the one or more through-holes, the adhesive plug mechanically bonding the flexible base portion to the adhesive patch.

7 . The device according to claim 6 , wherein the flexible base portion comprises thermoplastic polyurethane.

8 . The device according to claim 6 , wherein the flexible base portion is molded onto a rigid base portion.

9 . The device according to claim 8 , wherein the flexible base portion has a lower durometer than the rigid base portion.

10 . The device according to claim 8 , wherein flexible base portion is molded to laterally surround the rigid base portion.

11 . The device according to claim 8 , wherein the device further comprises a cannula for delivering a liquid medicament into a patient's skin, the cannula extending from the rigid portion through a hole in the adhesive patch.

12 . The device according to claim 6 , further comprising a release liner.

Assignees

• Becton Dickinson Co

Inventors

• Reed Jeffrey
• Knight John
• Townsend Scott

Classifications

• A61M5/14248 Primary

  of the skin patch type · CPC title

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title

• B29C65/542

  by injection · CPC title

• A61M5/3202

  Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001) · CPC title

• B29L2031/7542

  Catheters · CPC title