MICRO NEEDLE ROLLER ASSEMBLY

• US 20090312691A1
• Filed: 06/27/2007
• Published: 12/17/2009
• Est. Priority Date: 07/03/2006
• Status: Active Grant

• Current Assignee: Korea Advanced Institute of Science and Technology, Lotte Chemical Corporation
• Original Assignee: Lotte Chemical Corporation
• Inventors: Kim, Chang-hyun, Hyun, Dong-hun, Lee, Seung-sup, Han, Man-hee
• Granted Patent: US 9,987,475 B2
• Time in Patent Office: Days
• US Class Current: 604/22
• CPC Class Codes: A61H 15/0092 hand-held A61H15/0085 takes precedence
• CPC Class Codes: A61H 2015/0014 cylinder-like, i.e. rollers
• CPC Class Codes: A61H 2201/0173 Means for preventing injuries
• CPC Class Codes: A61H 2201/0176 By stopping operation
• CPC Class Codes: A61H 2201/10 with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
• CPC Class Codes: A61H 2201/1685 interchangeable modular devices, A61H2201/0107
• CPC Class Codes: A61H 2201/1695 Enhanced pressure effect, e.g. substantially sharp projections, needles or pyramids
• CPC Class Codes: A61H 2201/5082 Temperature sensors
• CPC Class Codes: A61H 23/0263 using rotating unbalanced masses
• CPC Class Codes: A61M 2037/0023 Drug applicators using microneedles
• CPC Class Codes: A61M 2037/0046 Solid microneedles
• CPC Class Codes: A61M 2037/0061 Methods for using microneedles
• CPC Class Codes: A61M 37/0015 by using microneedles
• CPC Class Codes: A61N 2005/0644 Handheld applicators
• CPC Class Codes: A61N 2005/066 far infrared

Abstract

The present invention provides a micro needle roller assembly comprising a roller head including an external cylindrical member having a plurality of micro needles mounted on a surface thereof and an internal member placed in the external member and supported to the external member by supporting piece; and a handling member coupled to the internal member for rotating the internal member of the roller head; the micro needles, the external cylindrical member and the internal member being made of polymer resin.

Claims

1. A micro needle roller assembly, comprising;

a roller head including an external cylindrical member having a plurality of micro needles mounted on a surface thereof and an internal member placed in the external member and supported to the external member by supporting pieces; and

a handling member coupled to the internal member for rotating the internal member of the roller head;

the micro needles, the external cylindrical member and the internal member being made of polymer resin.

2. The micro needle roller assembly according to claim 1, wherein the internal member is a hollow cylindrical member and the supporting pieces are extended in a radial direction of the internal member.

3. The micro needle roller assembly according to claim 1, wherein the internal member has cylindrical shaped receiving spaces formed at both end portions thereof.

4. The micro needle roller assembly according to claim 1, wherein the supporting piece has the length that is the same as that of the external member to prevent the external member from being transformed.

5. The micro needle roller assembly according to claim 1, wherein polymer resin is one of thermosetting resin and thermoplastic resin.

6. The micro needle roller assembly according to claim 1, wherein polymer resin is biodegradable polymer.

7. The micro needle roller assembly according to claim 1, wherein the micro needles, the external member, the supporting pieces and the internal member are formed integrally with each other.

8. The micro needle roller assembly according to claim 1, wherein the handling member comprises;

a gripper;

first and second connecting arms extended from the gripper; and

protrusions formed on inner surfaces of the first and second connecting arms, the protrusions being received in the receiving spaces formed at both end portions of the internal member of the roller head.

9. The micro needle roller assembly according to claim 1, wherein the external member of the roller head has grooves formed on a surface thereof, the roller head comprises needle blocks having needles formed thereon, and the needle blocks are received in the grooves.

10. The micro needle roller assembly according to claim 9, wherein the groove is extended in the longitudinal direction of the external member and has an upper portion and a lower portion having a width larger than that of the upper portion, and the needle block has a sectional shape that is the same as that of the groove.

11. The micro needle roller assembly according to claim 9, wherein the needles and the needle block are formed integrally with each other and made from the same material from which the external member is made.

12. The micro needle roller assembly according to claim 10, wherein the grooves are formed in parallel to an axis of the external cylindrical member.

13. The micro needle roller assembly according to claim 10, wherein the grooves are inclined at a certain angle with respect to an axis of the external cylindrical member.

14. The micro needle roller assembly according to claim 9, further comprising side covers fixed to both side ends of the roller head, each of the side covers having an opening corresponding to the internal member.

15. The micro needle roller assembly according to claim 1, further comprising a vibration generating means and a power electric source received in a space formed in the gripper of the handling member.

16. The micro needle roller assembly according to claim 15, wherein the vibration generating means comprises a driving motor connected electrically to the power electric source and an eccentric weight coupled to a driving shaft of the driving motor.

17. The micro needle roller assembly according to claim 15, further comprising a switch for controlling an electrical connection between the vibration generating means and the power electric source.

18. The micro needle roller assembly according to claim 17, further comprising at least one infrared ray-generating device being connected to the power electric source via the switch and provided on an inner surface of at least one of the first and second connecting arms.

19. The micro needle roller assembly according to claim 1, wherein the gripper has a recess formed on a surface thereof adjacent to the first and second connecting arms.

20. The micro needle roller assembly according to claim 1, further comprising a cover fixed to the gripper and placed on the roller head.

21. The micro needle roller assembly according to claim 20, wherein the gripper has a slit formed at a portion thereof and the cover comprises a hollow semi-cylindrical sheet, an extension piece extended from the sheet and a bending piece formed at one end portion of the extension piece and inserted in the slit of the gripper.

22. The micro needle roller assembly according to claim 21, wherein the sheet of the cover has a width which is the same as that of the roller head.