Handheld device for repeated puncture of human or animal skin

• US 9,750,528 B2
• Filed: 06/11/2015
• Issued: 09/05/2017
• Est. Priority Date: 06/12/2014
• Status: Active Grant

• Current Assignee: MT DERM GmbH
• Original Assignee: MT DERM GmbH
• Inventors: Scherkowski, Dirk
• Primary Examiner(s): Severson, Ryan J
• Application Number:
  US14/736,519
• Publication Number:
  US 20150359559A1
• Time in Patent Office: 817 Days
• CPC Class Codes: A01K 11/005 Branding or tattooing devices for animals
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61M 2210/04 Skin
• CPC Class Codes: A61M 2250/00 Specially adapted for animals
• CPC Class Codes: A61M 37/0076 Tattooing apparatus apparatus for marking animals A01K11/00; vaccine applicators having needles or other puncturing means A61B17/205

Abstract

A handheld device for repeated local puncture of human or animal skin, comprising a housing having a handle, a drive device in the housing supplied with a rotating movement about an axis of rotation by a driveshaft, a conversion mechanism coupled to the driveshaft to convert rotating movement into a driving movement along a driving movement direction, and a puncture device which is arranged in the housing and as a puncture needle, which is arranged on a needle shaft that can be moved back and forth repeatedly along a path of movement together with the puncture needle and is connected to the conversion mechanism, wherein the conversion mechanism has a rod crank device, and the stroke executed by the puncture element in moving back and forth is adjustable by altering a relative position between an axial direction of the axis of rotation and the direction of the driving movement.

Claims

1. A handheld device for repeated local puncture of human or animal skin, comprising:

a housing on which a handle is formed,

a drive device which is arranged in the housing and with which a rotating movement about an axis of rotation is supplied via a driveshaft,

a conversion mechanism which is coupled to the driveshaft and is arranged in the housing and set up to convert the rotating movement into a driving movement along a driving movement direction, and

a puncture device which is arranged in the housing and comprises a puncture element, which is arranged on a needle shaft that can be moved back and forth repeatedly along a path of movement together with the puncture element and is connected to the conversion mechanism,

wherein the conversion mechanism has a rod crank device, and a stroke executed by the puncture element in moving back and forth is adjustable by altering a relative position between an axial direction of the axis of rotation and the direction of the driving movement.

2. The handheld device according to claim 1, wherein, in the rod crank device,

a drive-side coupling element is provided, which is coupled to the driveshaft and rotates according to the rotating movement during operation,

a proximal end of a rod connector couples to the drive-side coupling element in an articulated joint, such that the proximal end of the rod connector is moved around the axis of rotation of the driveshaft on a closed path of movement during the rotation of the drive-side coupling element, and

a distal end of the rod connector couples to an output-side coupling element, which is coupled to the needle shaft for transferring the driving movement.

3. The handheld device according to claim 2, wherein the articulated joint between the proximal end of the rod connector and the drive-side coupling element is designed to be rotationally decoupling.

4. The handheld device according to claim 2, wherein the articulated joint between the distal end of the rod connector and the output-side coupling element is designed to be rotationally decoupling.

5. The handheld device according to claim 2, wherein the proximal end of the rod connector and the distal end of the rod connector are accommodated on the rod connector in a rotationally decoupled manner.

6. The handheld device according to claim 2, wherein the proximal end of the rod connector is connected in an articulated joint to the drive-side coupling element and/or the distal end of the rod connector is connected in an articulated joint to the output-side coupling element by means of a ball joint.

7. The handheld device according to claim 2, wherein the output-side coupling element is connected to the needle shaft via a rigid connection or is designed integrally therewith.

8. The handheld device according to claim 2, wherein the conversion mechanism has a rotational decoupling.

9. The handheld device according to claim 8, wherein the articulated joint between the proximal end of the rod connector and the drive-side coupling element is designed to be rotationally decoupling.

10. The handheld device according to claim 9, wherein the articulated joint between the distal end of the rod connector and the output-side coupling element is designed to be rotationally decoupling.

11. The handheld device according to claim 8, wherein the articulated joint between the distal end of the rod connector and the output-side coupling element is designed to be rotationally decoupling.

12. The handheld device according to claim 1, wherein the conversion mechanism has a rotational decoupling.

13. The handheld device according to claim 1, wherein a retrieval device is coupled to the needle shaft.

14. The handheld device according to claim 1, wherein the direction of the driving movement is not parallel to the axial direction of the axis of rotation.

15. The handheld device according to claim 1, wherein a maximum needle protrusion of a puncture needle tip of the puncture element is adjustable with respect to a front housing opening by means of a stroke adjustment.

16. The handheld device according to claim 1, wherein the housing is formed with a plurality of housing modules, wherein the drive device is arranged in a drive module and the puncture device is arranged in a puncture module or needle module.