# US 10,441,307 B2 · Hand held dermaplaning device and dermaplaning process

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- Number: US 10,441,307 B2
- Document ID: US10441307B2
- Status: Granted
- Kind: B2
- Application number: 14/976,409
- Filed: 2015-12-21
- Published: 2017-02-16
- Granted: 2019-10-15
- Earliest claimed: 2013-09-09
- Assignees: DD Karma LLC
- Applicants: Dara Levy
- Inventors: Dara Levy
- Web page: https://patentgrep.com/patent/US10441307B2

## CPC

- A45D 26/00: Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers (removing hair using electrosurgical instruments A61B18/04, A61B18/18)
- A45D 26/0004: {by abrasion}
- A61B 17/32: Surgical cutting instruments ({A61B18/042 takes precedence; suture cutters A61B17/0467;} implements for ligaturing and cutting {A61B17/122, A61B17/12; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133})
- A61B 17/320068: {using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745)}
- A61B 17/54: Chiropodists' instruments {, e.g. pedicure}
- A61B 50/20: Holders specially adapted for surgical or diagnostic appliances or instruments (drapes with means to hold surgical instruments A61B46/23; for catheters A61M25/02)
- B26B 7/00: Hand knives with reciprocating motor-driven blades
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/70: characterised by the mechanical construction
- H02J 50/10: using inductive coupling
- A45D 2200/207: Vibration, e.g. ultrasound
- A61B 17/3211: Surgical scalpels, knives; Accessories therefor
- A61B 17/3213: with detachable blades
- A61B 2017/00017: {Electrical control of surgical instruments}
- A61B 2017/00398: {using powered actuators, e.g. stepper motors, solenoids}
- A61B 2017/00473: {Distal part, e.g. tip or head (A61B2017/00464 takes precedence)}
- A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)}
- A61B 2017/00734: {battery operated}
- A61B 2017/00761: {Removing layer of skin tissue, e.g. wrinkles, scars or cancerous tissue}
- A61B 2017/320004: {abrasive}
- A61B 2017/320071: {with articulating means for working tip}
- A61B 2090/0807: {Indication means}
- A61B 2090/0814: {Preventing re-use}
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

A method and a hand-held device for dermnaplaning is disclosed that includes a blade assembly which includes a blade, a blade holder and a safety cage. In accordance with an important aspect of the invention, the safety cage limits the amount of penetration of the blade into the facial skin to enable the device to be safely used by non-professionals. The dermaplaning device includes a vibration generator that causes the blade to vibrate at a predetermined frequency. Various embodiments of the hand-held dermaplaning device are disclosed for vibrating the blade.

## Claims

### Claim 1

A blade assembly comprising:
a blade holder having an enlarged nose portion only at one end thereof and an upper shelf surface extending rearward of the nose portion, the blade holder having a first blade holder side and a second blade holder side;
a single blade carried by said blade holder and disposed at a lower portion of the blade holder, the blade extending along a centerline of said blade holder and rearward of the nose portion, the blade located between the first blade holder side and the second blade holder side, the blade having a cutting edge, a first blade side and a second blade side, the first and second blade sides being disposed adjacent the cutting edge;
a first safety cage fixed over the first blade side and a second safety cage fixed over the second blade side, the first and second safety cages constructed and arranged to limit the amount of penetration of the blade into facial skin; and
a pair of parallel aligned slots including a first slot and a second slot, the first slot disposed along a length of the first blade holder side and below the upper shelf surface, the second slot disposed along a length of the second blade holder side, each slot constructed and arranged to slidingly receive a complementary rail of a hand-held dermaplaning device for mounting the blade assembly thereto.

### Claim 2 (depends on 1)

The blade assembly as recited in claim 1, wherein said blade holder is formed with a lower shelf surface.

### Claim 3 (depends on 2)

The blade assembly as recited in claim 2, further including an upwardly extending tab formed on said lower shelf surface.

### Claim 4 (depends on 3)

The blade assembly as recited in claim 3, wherein said tab is an L-shaped tab.

### Claim 5 (depends on 2)

The blade assembly as recited in claim 2, further including an upwardly extending ramp formed on said lower shelf portion.

### Claim 6 (depends on 2)

The blade assembly as recited in claim 2, wherein the upper shelf surface and the lower shelf surface are constructed and arranged to cooperate with a blade assembly control mechanism of the hand-held dermaplaning device.

### Claim 7 (depends on 1)

The blade assembly as recited in claim 1, wherein each of the first and second safety cages is configured with teeth.

### Claim 8 (depends on 1)

The blade assembly as recited in claim 1, in combination with the hand-held dermaplaning device.

### Claim 9 (depends on 8)

The combination as recited in claim 8, wherein the hand-held dermaplaning device comprises a housing formed with the complementary rails, the rails being spaced apart, wherein the a pair of parallel aligned slots are constructed and arranged to slide onto the complementary rails.

### Claim 10 (depends on 8)

The combination as recited in claim 8, wherein the hand-held dermaplaning device comprises a cut-out at a front region thereof, the cut-out constructed and arranged to receive the nose portion of the blade holder.

### Claim 11 (depends on 1)

The blade assembly as recited in claim 1, wherein a pair of parallel aligned slots are disposed above the cutting edge.