227 results about "Hair shaft" patented technology

A method for permanently removing hair utilizes the hair shaft and hair ducts to transmit light into the tissue sustaining the hair follicle, thereby permanently destroying or modifying the tissue in a manner which desirably mitigates hair growth. The method includes the steps of covering the patient's skin area with a high reflectance substance so as to substantially protect all skin components other than those sustaining the hair. The hair is optionally shaved or pulled out, and then the skin is illuminated with either a large-area electromagnetic radiation field for simultaneous destruction of multiple hair-follicles, or alternatively with a tightly-focused beam which destroys one hair at a time. Optionally, the beam may be rapidly scanned so as to destroy single hairs quickly in succession. The surrounding skin region is left substantially free of injury. This mitigates pain and enhances post hair removal healing.

An electric toothbrush comprising an elongated body portion and a head including a static portion and a moving portion, a handle, and an angled shaft between the head and the handle. The portion of the toothbrush containing the head is detachably connected to the portion of the toothbrush containing the handle. A shaft within the head is selectively connectable to a mating shaft within the handle by a cooperating notch and peg assembly biased into a locking position by a spring member disposed to bias the head shaft into the desired position.

A method and apparatus are provided for hair growth management by applying low energy optical radiation to a treatment area of a patient's skin, which radiation is sufficient to at least traumatize a matrix portion of each follicle being treated, but not to cause either necrosis of most of each said follicle or immediate gross alteration of any hair shaft therein. The treatments are preferably performed a plurality of times at selected time intervals to achieve a desired level of hair growth management.

A compact and portable optical shaving device cuts hair shafts using electromagnetic radiation. In various embodiments, the optical shaving device includes a power source that connects to one or more optical components (e.g., arranged in an array). An optic, such as a blade, can connect to and aligns with the array of optical components. The optical component(s) can provide light to the optic based on electrical energy from the power source. The optical component(s) or the optic can manipulate and direct the electromagnetic radiation to cut the hair shafts.

A hair transplantation device can include a generally tubular guide configured to locate a hair follicle bulb by sliding over a hair shaft down to an upper surface of a hair follicle. The guide can have a blunt distal end configured not to transect the hair follicle bulb. The hair transplantation device also includes an outer tubular member sized and configured to be advanced around the guide. The outer tubular member has a dilator and a harvester. The device can be used in a follicle transplantation method in which the guide locates a hair follicle bulb, and the outer tubular member is slid over the guide. Once the outer tubular member is aligned with the guide, the harvesting portion is advanced, cutting dermal tissue surrounding the hair follicle. The outer tubular member is then withdrawn with the hair follicle, relocated in a recipient area, and the hair follicle implanted.

Provided herein is an instrument and method useful to incise in to the skin to a precise depth and at a specific angle with respect to the surface of the skin of a patient, for the extraction of individual follicular groups or individual follicular units. An instrument according to the invention precisely limits the depth of incision, and creates a circular incision around a hair, follicular unit, or follicular cluster in a manner such that no damage occurs to any of the hair shafts.

The present invention relates to an improved scaffold which is constructed to mimic the architecture of the native hair follicle. The present invention also relates to the use of specific compositions and methods of manufacture to produce scaffolds that combine biocompatibility with the desired rates of bioabsorption. In another embodiment, the present invention relates to a process for manufacturing a biomimetic hair follicle graft and a method for seeding the graft with cells and implanting the graft into the skin where the growth of a new hair shaft is desired. A further embodiment of the present invention relates to a method for hair multiplication in which cells are multiplied in culture and aliquoted into a multitude of bioabsorbable scaffolds in combination with cultured keratinocytes or other allogenic cells.

The therapeutic catheter comprises a lumen communicating from the user's side end to the terminal tip part thereof, a main shaft having, at its tip, a guide wire lumen, a hub at its user's side end, and a slit in the guide wire lumen through its entire length, or the therapeutic catheter comprises a main shaft having a lumen communicating from the user's side end to the terminal tip part thereof, a guide wire shaft having, at its tip, a guide wire lumen, a hub at the user's side end of the main shaft, and a slit in the guide wire shaft through its entire length. The guide wire or the shaft of the other catheter playing the role of the guide wire can be rapidly disposed in the guide wire lumen through the slit.

An improved device for attaching thermal dressings-using essentially any type of source of heat or cold employs a novel adhesive that permits firm attachment of the dressing to essentially any portion of the human anatomy with no need for wrapping around the limb or other anatomical region. The adhesive is sufficiently weak that the dressing can be peeled from the skin-even in the presence of body hair-with no pain. The adhesive, a hypoallergenic hydrophilic gel, is thick and soft and adheres by molding itself to the skin surface, and into and around hair shafts. The material contains essentially no elastomers and does not grip hair or pull strongly on hairs when the dressing is removed. When the gel becomes dehydrated, it loses most, if not all, of its adhesive properties. The gel is sufficiently crosslinked so as to resist dissolution by additional water.

In a first embodiment, an ultrasonic or vibratory energy apparatus is provided for at least one of ultrasonically, vibrationally, thermally or ablatively treating at least a first portion of at least one hair, hair-shaft, hair root-structure, hair root-region, hair-follicle, hair-related scalp tissue or hair-supporting vasculature. In a second embodiment, an optical, radio-frequency or microwave treatment energy-delivery apparatus is provided for at least one of thermally, ablatively or photo-optically treating at least a first portion of at least one hair, hair-shaft, hair root-structure, hair root-region, hair-follicle, hair-related scalp tissue or hair-supporting vasculature.

A device for hair removal includes the use of infrared laser having wavelength of about 0.7 to 1.1 microns, energy per pulse of about 0.5 to 5.0 J on the skin surface and operated at about 1.0 to 5.0 Hz. The treated area includes one or more than one of the following: the hair shaft, root, hair follicle, papilla, blood vessels feeding the papilla, or blood vessels in the papilla. The delivery means includes an optical fiber or fiber bundle which delivers said laser beam to said treated skin, where the optical fibers is further connected to a hand piece containing the laser unit and optics. The laser beam is generated from a laser unit consisting of about 1 to 5 diode arrays having the same wavelength at about 0.7 to 1.1 microns, or a combination of 2 to 3 different wavelengths selected from the ranges of about 700 to 760 nm, 780 to 820 nm, 900 to 930 nm, or 970 to 990 nm.

A hand held hair trimming device which when pulled through the hair trims only a determined portion of the ends of hair strands while leaving adjacent hairs uncut. The device will cut a predetermined length off only the distal ends of the hair shafts each time it has the hair drawn through one or a plurality of serpentine pathways formed by retainer cavities and an engageable retainer. The cutting head portion of the device may be removed and replaced and optional hair dryer or vacuum may be attached to an aperture on the rear of the cutting head to dry hair, vacate cut ends, or encourage distal ends of hairs toward the cutting blade.

Methods, Devices and systems for hair removal combine the application of RF electromagnetic energy to the skin with application of heat from heating element(s) to hair(s) of the skin. The devices or systems may include RF electrodes and one or more heating elements. RF energy from an RF generating unit is applied to the RF electrodes. Heat is applied to hair shafts by the heating element(s). The devices and systems may be hand held or may include a hand held part connected to a base unit. In operation, the hand held device or part is moved along the treated skin region. The combined effect of RF energy application to the skin and heating of the hair shaft results in improved hair removal and may reduce hair re-growth. The devices and systems may also include safety improving features preventing skin damage by reducing sparking or excessive skin heating by the heating element(s).

A method and apparatus disclosed herein may incise into a patient's skin to a precise depth and at a specific angle with respect to a surface of the patient's to extract individual follicular groups or individual follicular units. An apparatus as disclosed herein may precisely limit a depth of an incision, and perform a circular incision around a hair, follicular unit, or follicular cluster without damaging any hair shafts.

A method for chemically modifying the internal region of a hair shaft. The method comprises applying an oxidising formulation to the hair; de-wetting the hair; applying a monomer composition to the hair, wherein the monomer composition comprises an ethylenic monomer having a molecular weight of 500 g / mole or less and a cosmetically acceptable carrier. Also a kit which comprises: application instructions comprising the method; and the monomer composition.

The invention provides health-care food for beautifying and brightening hair of a dog, belonging to the field of animal health-care products. The health-care food formula comprises the following components by weight based on 1kg: 10-30g of deep sea fish oil, 10-30g of linseed oil, 5-20g of poppyseed oil, 10-30g of perilla oil, 10-30g of grape seed oil, 10-30g of lecithin, 5-20g of chelate iron, 1-10g of chelate manganese, 5-20g of chelate zinc, 1-5g of chelate copper, 0.05-0.2g of yeast selenium, 150-250g of methionine, 50-150g of lysine, 1-4g of vitamin E, 0.05-0.2g of vitamin D, 0.5-2g of vitamin A, 0.05-0.2g of vitamin B1, 0.1-0.4g of vitamin B2, 0.05-0.2g of vitamin B6, 0.05-0.4g of vitamin B12, 0.05-0.2g of biotin, 0.1-0.4g of nicotinic acid, 1-5g of bacillus, 1-5g of yeast, 120-180gof chicken liver powder, 50-80g of Rosmarinus officinalis and the balance of yeast powder. The components are made into a tablet with the specification of 0.7-0.9g according to a regular tabletting process, and the water content is less than 10%. The health-care food provided by the invention has the advantages of high titer and strong stability and is capable of improving the fur health of the dog, protecting hair follicles and hair shafts against damage, enabling the hair to be smooth and soft, reducing hair slip, promoting regeneration of furs, improving immunity comprehensively and ensuring the dog in a healthy and vital state.

Provided herein is an instrument and method useful to incise in to the skin to a precise depth and at a specific angle with respect to the surface of the skin of a patient, for the extraction of individual follicular groups or individual follicular units. An instrument according to the invention precisely limits the depth of incision, and creates a circular incision around a hair, follicular unit, or follicular cluster in a manner such that no damage occurs to any of the hair shafts.

Provided is an aspiration catheter which does not require a large-scale device, has a largest possible aspiration lumen, and is sufficiently flexible to track tortuous blood vessels following a guidewire, thereby being easily advanced to a target site to be treated. In the aspiration catheter, the tip of the main shaft is obliquely cut, the distal end of the guidewire shaft is positioned at the distal end of the main shaft or protrudes from the distal end of the main shaft in the distal direction, and the relationships 0.5≦L2 / L1 and L2−L1≦5 mm are satisfied, wherein L1 is the length of the obliquely cut portion of the main shaft in the longitudinal direction of the catheter, and L2 is the length from the proximal end of the guidewire shaft to the distal end of the main shaft.

A surgical needle includes an elongated needle body defining a longitudinal axis, and having a main shaft, a needle end adjacent the main shaft, and a needle tip extending from the needle end and having an extreme needle point. The needle end includes a plurality of concave surfaces extending from the needle tip to the main shaft. The needle tip includes a plurality of concave surfaces extending from the needle point to intersect the concave surfaces of the needle end. The concave surfaces of the needle end are obliquely arranged relative to the longitudinal axis at a first angle. The concave surfaces of the needle tip are obliquely arranged relative to the longitudinal axis at a second angle greater than the first angle. The elongated needle body includes cutting edges disposed along lines of intersection of the concave surfaces of the needle end with the concave surfaces of the needle tip. The needle end includes four intersecting concave surfaces and defines a generally diamond-shape in cross-section along an axis transverse to the longitudinal axis. The needle end defines a maximum cross-sectional dimension greater than a corresponding maximum cross-sectional dimension of the main shaft. The needle tip may include four intersecting concave surfaces and define a general diamond shape cross-section.

Hair restorative compositions useful in repairing damaged hair include at least one hair shaft bonding agent dispersed within an appropriate solvent or carrier, such as water. When applied to damaged hair, the hair shaft bonding agent adsorbs into and bonds to the damaged hair shaft, filling in discontinuities and adhering split ends or loosened cuticle layers back together within the main hair shaft. A wetting agent may be included to facilitate absorption and bonding of the hair shaft bonding agent to hair. A thickening agent may be included to yield a hair restorative composition that is much easier to apply compared to runny compositions having the consistency of water. A conditioner may be added to nourish and condition the hair. The inventive hair restorative compositions are able to permanently repair damaged hair, thereby resulting in hair that is stronger, healthier, and more resistant to further damage.

Provided herein is an instrument and method useful to incise in to the skin to a precise depth and at a specific angle with respect to the surface of the skin of a patient, for the extraction of individual follicular groups or individual follicular units. An instrument according to the invention precisely limits the depth of incision, and creates a circular incision around a hair, follicular unit, or follicular cluster in a manner such that no damage occurs to any of the hair shafts.

The invention provides a minimally-invasive surgery assistant robot, relates to the field of surgery robots, particularly relates to a minimally-invasive surgery assistant robot and aims to solve the problem that an existing robot hardly opens high-quality and high-accuracy wounds in minimally-invasive surgery. The robot comprises a main shaft lifting mechanism, a main shaft rotating mechanism and a main shaft tail end opening and closing mechanism, wherein the main shaft lifting mechanism is used for driving a ball screw-nut pair via a coupler by using a motor, so that a movable plate exerts the lifting function on a guide rail pair; the main shaft rotating mechanism is used for transmitting torque to a long sleeve by driving two pairs of gears via the motor, then transmitting the torque to a main shaft and enabling the main shaft to rotate; the main shaft tail end opening and closing mechanism is used for transmitting the torque via a worm and gear and a pair of gears by using the motor, lifting a turntable and stretching an inner rod so as to close a tail end surgical instrument.

A hand held hair trimming device which when pulled through the hair cuts only a determined portion of the ends of hair strands while leaving adjacent hairs uncut. The device will cut a predetermined length off only the distal ends of the hair shafts each time it has the hair drawn through its serpentine channel. Angled encounter of the distal ends with the cutting blade is prevented by ridges and apertures encouraging such contact only at subtantially straight angles. The device may be held in either hand allowing the hair pass through in either direction by merely changing the rotational direction of the motor by moving the thumb switch. The blade section of the device may be adjustable for changing the amount of the determined length to be cut from the hair shafts or may be removable and replaceable with one of a plurality of differently configured blade assemblies thereby allowing for easy adjustment of the trimmed amount.

A catheter guide wire, especially for percutaneous transluminal coronary angioplasty, comprises an elongated wire shaft of a flexible material having a proximal and a distal end and disposed on the wire shaft at least one radiopaque, sleeve-like marker adjacent to the distal end. The at least one marker is disposed on a core section of the wire shaft, said core section being widened in its diameter relative to the diameter of the adjoining shaft sections.

A hair densitometer measures the number of hair shafts in a fixed area and measures the diameters of the counted hair shafts. This is done for two different areas of the head and the comparison results in a quantified measure of the thinning of a persons hair on their head.

A method and composition for maintaining and / or stabilizing moisture levels in the hair shaft comprising the application of a hair care composition comprising a copolymer comprising at least one hydrophilic monomer and at least one hydrophobic monomer, and a dermatologically acceptable carrier wherein the hydrophilic and hydrophobic monomers undergo polymerization inside the hair fibers.

A cosmetic hair assembly has a shaped piece of wig netting or mesh holding a plurality of cosmetic hairs attached to a correspondingly shaped layer of biomimetic microstructure adhesive (BMA) with tiny synthetic seta for adhesion to human skin. The wig netting is dimensioned slightly larger than the BMA layer to leave a slight overhanging part to facilitate removal from the skin by peeling back the overhanging part. A comb with peeler in the form of hooked portions can be used to peel back the wig netting. In another embodiment, an individual cosmetic hair assembly has a hair shaft attached to a substrate portion attached to a BMA layer, wherein the substrate's edges provide engagement surfaces to facilitate removal by peeling back the BMA layer. An applicator in the form of a thin water-soluble transfer sheet can hold a number of cosmetic hair assemblies until they are ready to be applied.

The present invention relates to a preparation method of artificial skin containing hair follicle. Said method includes the following steps: separating mouse palp hair follicle, adding resolvase to make digestion, centrifugalizing to obtain hair follicle epithet lial cell, taking out mouse palp hair follicle whose hair shaft is removed, using collagenase D to make digestion, centrifugalizing, using DMEM culture medium to make dermal sheath cell culture and make hair papilla cell culture; making the subcultured cell be respectively mixed with hair follicle epithelial cell according to the ratio of 5-1:1-5, and transplanting on collage / chtosan porous support, adding DMEM culture medium to make culture so as to obtain the invented product.

A burr attachment designed for use with a Curved Burr Attachment or other chuck attachments that includes a tube with a wire shaft supported therein and a coil spring surrounding said wire shaft and having each of the coils touch the outer periphery surface of the wire shaft and the inner peripheral surface of said tube to enhance cooling of said outer periphery of said tube from the heat generated by said wire shaft and attenuate vibrations while allowing said burr attachment to be bent without kinking. The burr attachment includes a proximal end support and a distal end support formed on the end of said burr attachment wherein the wire shaft is affixed to said proximal end support and rotates relative to said distal end support and includes detents formed on each of the supports for engaging balls in said adapter so as to be operatively connected thereto when the burr attachment is aligned in said adapter to couple the burr attachment to said Curved Burr Attachment or other chuck attachments for rotary motion of said wire shaft and locating the cutter of said burr attachment to a precise location relative to the end of the Curved Burr Attachment or other chuck attachments. A dimple and annular groove are formed in the proximal end support and distal end support respectively to avoid the cutter from being inadvertently dislodged. A significant purpose of the burr attachment is that it is disposable while the chuck or the adapter of the Curved Burr Attachment is re-usable.