# US 9,750,528 B2 · Handheld device for repeated puncture of human or animal skin

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- Number: US 9,750,528 B2
- Document ID: US9750528B2
- Status: Granted
- Kind: B2
- Application number: 14/736,519
- Filed: 2015-06-11
- Published: 2015-12-17
- Granted: 2017-09-05
- Earliest claimed: 2014-06-12
- Assignees: MT Derm GmbH
- Applicants: MT.DERM GmbH
- Inventors: Dirk Scherkowski
- Web page: https://patentgrep.com/patent/US9750528B2

## CPC

- A61B 17/32093: {for skin incisions}
- A61M 37/0076: {Tattooing apparatus (apparatus for marking animals A01K11/00; vaccine applicators having needles or other puncturing means A61B17/205)}
- A01K 11/005: {Branding or tattooing devices for animals}
- A61B 2017/00398: {using powered actuators, e.g. stepper motors, solenoids}
- A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)}
- A61M 2210/04: Skin
- A61M 2250/00: Specially adapted for animals
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS

## 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

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 2)

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.

### Claim 4 (depends on 2)

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.

### Claim 5 (depends on 2)

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.

### Claim 6 (depends on 2)

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.

### Claim 7 (depends on 2)

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.

### Claim 8 (depends on 2)

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

### Claim 9 (depends on 8)

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.

### Claim 10 (depends on 9)

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.

### Claim 11 (depends on 8)

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.

### Claim 12 (depends on 1)

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

### Claim 13 (depends on 1)

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

### Claim 14 (depends on 1)

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.

### Claim 15 (depends on 1)

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.

### Claim 16 (depends on 1)

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.