SKIN-MOUNTABLE MEDICAL DEVICE

• US 20160135747A1
• Filed: 11/11/2015
• Published: 05/19/2016
• Est. Priority Date: 11/14/2014
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Frey, Stephan-Michael, Kube, Oliver, Walter, Helmut
• Granted Patent: US 9,597,035 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/04 Constructional details of apparatus
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61F 13/023 wound covering film layers without a fluid retention layer
• CPC Class Codes: A61F 13/0269 Tapes for dressing attachment for stoma bags A61F5/443; for nappies or sanitary towels A61F13/58; wound closure tapes A61B17/085; for surgical drapes A61B46/00; attaching catheters A61M25/02
• CPC Class Codes: A61F 2013/00646 Medication patches, e.g. transcutaneous
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61N 1/0496 characterised by using specific chemical compositions, e.g. hydrogel compositions, adhesives
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/149 Sectional layer removable
• CPC Class Codes: Y10T 428/1495 Adhesive is on removable layer

Abstract

The invention concerns a skin-mountable medical device comprising a patch portion with a contact surface facing the skin of a patient during use, a process unit attached to the patch portion, and a plaster kit for securing the patch portion to the skin, wherein the plaster kit has a primary pad adapted to releasably adhere to at least a section of a peripheral skin surface surrounding the contact surface. According to the invention, the plaster kit further comprises at least one auxiliary pad which is connectable or connected to the patch portion and adapted to functionally replace the primary pad after a wearing time.

Claims

1. Skin-mountable medical device comprising a patch portion with a contact surface facing the skin of a patient during use, a process unit particularly formed by a sensor or medication delivery set attached to the patch portion, and a plaster kit for securing the patch portion to the skin, wherein the plaster kit has a primary pad adapted to releasably adhere to at least a section of a peripheral skin surface surrounding the contact surface, characterized in that the plaster kit further comprises at least one auxiliary pad which is connectable or connected to the patch portion and adapted to functionally replace the primary pad after a wearing time.

2. Medical device according to claim 1, wherein the primary pad and the at least one auxiliary pad are lying upon each other in a layered configuration.

3. Medical device according to claim 1, wherein the auxiliary pad is bendably connected to a rim of the patch portion and forms a flap to uncover the primary pad for removal.

4. Medical device according to claim 1, wherein an adhesive coating of the auxiliary pad is separated by a liner from the primary pad.

5. Medical device according to claim 1, wherein the plaster kit further comprises a base pad fixedly connected to the contact surface of the patch portion.

6. Medical device according to claim 1, wherein the primary pad is delimited by a tear-off perforation.

7. Medical device according to claim 1, wherein the auxiliary pad is formed as a separate ring which can be applied over the periphery of the patch portion.

8. Medical device according to claim 1, further comprising a ring-shaped frame which is affixed to the inner edge of an annular auxiliary pad, wherein the frame can be engaged to the patch portion preferably in a form-locking manner.

9. Medical device according to claim 1, further comprising a stack of at least two auxiliary pads which are joined together in a parallel folding pattern particularly in a Leporello-like fashion for sequential unfolding into a use position.

10. Medical device according to claim 1, wherein the auxiliary pads each are formed as a half-ring adapted to be turned over into a functional position adhering to the skin.

11. Medical device according to claim 1, wherein the patch portion remains affixed to the skin while the primary pad is replaced.

12. Medical device according to claim 1, wherein the primary pad has a tear-off section which can be independently separated from the skin.

13. Medical device according to claim 12, wherein the tear-off section is connected by means of a pull linkage to a remaining section of the primary pad.

14. Medical device according to claim 1, wherein the primary pad comprises several separate sections in a mutually spaced manner which are selectively replaceable by auxiliary pads.

15. Medical device according to claim 1, wherein an auxiliary pad is mounted in an overlapping manner over the primary pad, such that a marginal area of the auxiliary pad adheres to the skin.