Skin stimulus

• US 9,724,034 B2
• Filed: 11/09/2010
• Issued: 08/08/2017
• Est. Priority Date: 11/09/2009
• Status: Active Grant

• Current Assignee: Owen Mumford
• Original Assignee: Owen Mumford
• Inventors: Nicholls, Clive, Evans, Timothy Simon, Hudson, Christopher W.
• Primary Examiner(s): Yu, Justine
• Assistant Examiner(s): VO, TU A
• Application Number:
  US13/508,742
• Publication Number:
  US 20120245497A1
• Time in Patent Office: 2,464 Days
• Field of Search: 601 15, 601 17, 601 46, 601 67, 601 68, 601 69, 601 72, 601 73, 601 84, 601 89, 601 92, 601134, 601135, 601136, 601137, 606181-186, 600583
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150114 by tissue compression, e.g. with specially designed surface of device contacting the skin area to be pierced
• CPC Class Codes: A61B 5/150137 by vibration enhancing collection by vibration A61B5/150175
• CPC Class Codes: A61B 5/150183 Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15128 comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: A61H 2201/1692 Enhanced rubbing effect
• CPC Class Codes: A61H 2201/1695 Enhanced pressure effect, e.g. substantially sharp projections, needles or pyramids
• CPC Class Codes: A61H 23/00 Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms apparatus for passive exercising A61H1/00; generating or transmitting mechanical vibrations in general B06B
• CPC Class Codes: A61H 23/006 Percussion or tapping massage hand percussion A61H23/06
• CPC Class Codes: A61H 23/02 with electric or magnetic drive
• CPC Class Codes: A61H 39/00 Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture chiropodists' instruments A61B17/54; for radiation therapy A61N5/0619
• CPC Class Codes: A61H 39/04 Devices for pressing such points, e.g. Shiatsu or AcupressureMassage or pressure on general areas A61H9/00 - A61H23/00
• CPC Class Codes: A61H 39/08 Devices for applying needles to such points, i.e. for acupuncture ; Acupuncture needles or accessories therefor
• CPC Class Codes: A61H 7/00 : Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for electro-medical massage devices applying electric current by contact A61N1/18
• CPC Class Codes: A61H 7/005 : hand-held
• CPC Class Codes: A61M 5/422 : Desensitising skin

Abstract

Skin stimulus arrangements are described for creating a stimulus in the skin in the vicinity of a treatment or wound site to alleviate the perception of pain. First and second textured surfaces are provided for making contact with the skin, with the surfaces being moved to create a stimulus which alleviates the perception of pain. The movement may be linear, rotary or a combination of both, and just a single textured surface may be provided.

Claims

1. A skin penetration device comprising:

a body (10), a penetration element (22) mounted in said body for penetrating the skin of the user,

a skin stimulus arrangement for creating a stimulus in the skin in the vicinity of an intended penetration site to alleviate the perception of pain,

wherein said skin stimulus arrangement comprises first and second textured surfaces (30, 36), for contacting the skin,

the first textured surface comprising a flat annular surface surrounding an aperture, through which the penetration element projects in use, and an array of projections extending from the flat annular surface and surrounding the aperture, and

the second textured surface comprising a flat annular surface surrounding the aperture, through which the penetration element projects in use, and an array of projections extending from the flat annular surface and surround the aperture,

the first and second textured surfaces being arranged concentrically around an axis of the aperture and an arrangement (18, 44, 46) configured for moving at least one of the textured surfaces relative to the other, thereby to create said stimulus,

wherein the axis of the aperture is normal to the flat annular surface, and moving at least one of said textured surfaces relative to the other comprises an angular movement around the axis of the aperture.

2. The skin penetration device according to claim 1, wherein the first textured surface is an outer surface and the second textured surface is an inner surface, said moving arrangement (18, 44, 46) is adapted to move the second textured surface (36) whilst the first textured surface remains stationary (30).

3. The skin penetration device according to claim 2, wherein said moving arrangement (18, 44, 46) is configured to move said second textured surface (36) longitudinally with respect to the first surface (30) in a direction, when in use, generally towards the skin.

4. The skin penetration device according to claim 3, wherein said moving arrangement (18, 44, 46) is configured to urge said second textured surface (36) against the skin during an initial part of the penetration stroke of said penetration element and, towards the end of the penetration stroke of the penetration element, to apply an impulse to said second textured surface more firmly to press it against the skin.

5. The skin penetration device according to claim 4 including a driver means (12) for moving the penetration element (22) through its stroke and, wherein said penetration element, or an element (44) that moves therewith during penetration movement, is adapted to create an impact which is transmitted to said one textured surface thereby to provide said impulse.

6. The skin penetration device according to claim 4, wherein said moving arrangement (18, 44, 46) includes bias means (40) associated with or acting between said penetration element and said second textured surface (36).

7. The skin penetration device according to claim 1, wherein said moving arrangement (18, 44, 46) is configured to move at least one of said textured surfaces (36), when in use, in a plane generally parallel to a location on the skin at which the penetration element is intended to penetrate.

8. The skin penetration device according to claim 1, wherein the first and second textured surfaces (30, 36) are generally annular and concentrically arranged about the intended penetration site, the first textured surface being an outer annular surface and the second textured surface being an inner annular surface.

9. The skin penetration device according to claim 1, wherein said moving arrangement (118, 158, 159, 160) includes a stored energy device (160) for rotating said at least one of the textured surfaces.

10. The skin penetration device according to claim 9, wherein said stored energy device (160) is a torsion spring.

11. The skin penetration device according to claim 9, wherein said moving arrangement (118, 158, 159, 160) includes means (152) for manually energizing said stored energy device (160) for rotating said at least one of the textured surfaces.

12. The skin penetration device according to claim 9, wherein said moving arrangement (118, 158, 159, 160) is adapted initially to move said at least one of the textured surfaces (138) forwardly to contact the skin in use and thereafter to rotate said at least one of the textured surfaces about an axis generally normal to the skin.

13. The skin penetration device according to claim 12, wherein said moving arrangement (118, 158, 159, 160) includes a latch arrangement (150, 156) for retaining said at least one of the textured surfaces (138) against rotation once said stored energy device (160) has been energized, and said latch arrangement is released by said forward movement of said at least one of the textured surfaces.

14. The skin penetration device according to claim 1, wherein said penetration element (22;

122) includes a drive arrangement for moving the penetration element forwardly to effect penetration, and said drive arrangement comprises a linear to angular transmission arrangement (274, 276) between the penetration element and said at least one of the textured surfaces whereby linear movement of said penetration element in use is accompanied by rotary movement of said at least one of the textured surfaces.

15. The skin penetration device according to claim 14, wherein said linear to angular transmission arrangement comprises a cam element (276) associated with one of the penetration element (122) and one of the textured surfaces (138) and a camming surface (274) associated with the other textured surface.

16. The skin penetration device according to claim 15, wherein said cam element (276) is associated with the penetration element (122) and the camming surface (274) is associated with said at least one of the textured surfaces (138).

17. The skin penetration device according to claim 16, wherein said penetration element (122) is carried by a holder (218) that moves longitudinally with the penetration element but which is constrained against angular movement, and said cam element (276) is formed integrally with said holder.

18. The skin penetration device according to claim 1, wherein said angular movement is unidirectional.

19. The penetration device according to claim 1, wherein said angular movement is oscillatory.

20. The skin penetration device according to claim 1, including a vibratory arrangement (170, 172;

276, 280) for imparting vibration to at least one of said textured surfaces.

21. The skin penetration device according to claim 20, wherein said vibratory arrangement (170, 172;

276, 280) generates vibration mechanically in response to said movement of said at least one of the textured surfaces.

22. The skin penetration device according to claim 21, including an abutment (172, 280) associated with one of said device body and one of the textured surfaces, in cooperation with an interrupted track (170, 276), which is provided with a plurality of interruptions spaced along the length of the track, provided on the other textured surface, whereby movement of said one of the textured surfaces moves said abutment along the length of the track such that the plurality of the interruptions spaced along the track thereby to impart vibration to the textured surface as the abutment travels over the interruptions along the track.

23. The skin penetration device according to claim 22, wherein said abutment comprises a resilient member associated with said one of the textured surfaces.

24. The skin penetration device according to claim 1, wherein said projections comprise one or more of conical, cylindrical, rounded, triangular, and saw tooth projections.

25. The skin penetration device according to claim 1, wherein said penetration element comprises the needle of a syringe for being inserted into the skin to effect an injection.

26. The skin penetration device according to claim 1, wherein said penetration element comprises a lancet blade for penetrating the skin by incision.

27. A skin penetration device comprising:

a body (10;

110),

a penetration element (22;

122) mounted in said body for penetrating the skin of the user,

a skin stimulus arrangement for creating in use a stimulus in the skin in the vicinity of an intended penetration site to alleviate the perception of pain,

wherein said skin stimulus arrangement comprises a first textured surface having a flat annular surface surrounding an aperture and second textured surface for contacting the skin and a moving arrangement (118, 158, 159, 160) for effecting relative angular movement of said second textured surface and said body, when in use, thereby to create said stimulus, wherein, the first and second textured surfaces are arranged concentrically around an axis of the aperture, and wherein the axis of the aperture is normal to the flat annular surface and moving said second textured surface relative to the first texture surface comprises an angular movement around the axis of the aperture.