Transdermal therapeutic system with pressure generating device
First Claim
1. A transdermal therapeutic system (10) for introducing liquid or liquefiable substance into skin (2) of a patient, including a system support (21) comprising a concave body including a cover part (26) and wall parts (27) adjoining the cover part (26), the cover part (26) and the wall parts (27) in operative arrangement to form a shell (25), an interior (28) of the system support (21) is delimited on five sides by the shell (25), the system support (21) includes a support part (23) including a bearing surface (24) facing toward the skin (2) in an operative position, at least one advancing element (31) is arranged in the interior (28) of the system support (21) and is flush with the bearing surface (24) or it protrudes from the bearing surface (24) in the direction of the skin (2) in the operative position, and at least one active substance reservoir (41) which is elastically deformable at least in some regions and which is embedded into the advancing element (31), wherein, on an application side (11) of the transdermal therapeutic system (10), the shell (25) of the system support (21) surrounds the advancing element (31), and the latter surrounds the active substance reservoir (41), and wherein the advancing element (31) comprises a swelling body (31) which is expanded by liquid uptake, characterized in that the system support (21) is deformation-resistant at least in some regions.
1 Assignment
0 Petitions
Accused Products
Abstract
A transdermal therapeutic system with a system support, at least one advancing element which is embedded into the system support, and at least one active ingredient reservoir which can be elastically deformed at least in some regions and which is embedded into the advancing element. On the application side of the transdermal therapeutic system, the system support surrounds the advancing element, and the advancing element surrounds the active ingredient reservoir. The advancing element comprises a swelling body which can be expanded by means of a liquid intake. The system support is designed to be rigid at least in some regions. A transdermal therapeutic system is developed which enhances the effect of the advancing element.
-
Citations
9 Claims
- 1. A transdermal therapeutic system (10) for introducing liquid or liquefiable substance into skin (2) of a patient, including a system support (21) comprising a concave body including a cover part (26) and wall parts (27) adjoining the cover part (26), the cover part (26) and the wall parts (27) in operative arrangement to form a shell (25), an interior (28) of the system support (21) is delimited on five sides by the shell (25), the system support (21) includes a support part (23) including a bearing surface (24) facing toward the skin (2) in an operative position, at least one advancing element (31) is arranged in the interior (28) of the system support (21) and is flush with the bearing surface (24) or it protrudes from the bearing surface (24) in the direction of the skin (2) in the operative position, and at least one active substance reservoir (41) which is elastically deformable at least in some regions and which is embedded into the advancing element (31), wherein, on an application side (11) of the transdermal therapeutic system (10), the shell (25) of the system support (21) surrounds the advancing element (31), and the latter surrounds the active substance reservoir (41), and wherein the advancing element (31) comprises a swelling body (31) which is expanded by liquid uptake, characterized in that the system support (21) is deformation-resistant at least in some regions.
Specification