7 results about "Skin biopsy" patented technology

The application discloses a skin biopsy sampling device and belongs to the technical field of medical devices, which comprises two adjustable-height mounting racks, spring telescopic rods are mounted on the two mounting racks, L-shaped fixing rods are fixed at one end of the spring telescopic rods, a positioning ring is fixed at the bottom ends of the two fixing rods, a sampling mechanism is arranged between the two fixing rods, a piston sampling cylinder is movably arranged on the sampling mechanism, a ring cutter is fixed at the bottom end of the piston sampling cylinder, and a scale is arranged on the side wall of the piston sampling cylinder; the application is simple to operate and high in precision, has a pre-cooling function, directly reduces the sensitivity of skin nerve endings by using low temperature, reduces the discomfort of a patient, can realize automatic replacement of gauze at the same time, uses brand-new gauze to contact the skin every time, completely avoids the risk of bacterial residue and cross infection, and is suitable for multiple sampling.

The invention provides a skin cutting device, and belongs to the technical field of medical equipment.The skin cutting device comprises a shell, a linear motion mechanism and a tool bit, and the shell is provided with a containing space with a first opening; the linear motion mechanism is installed in the containing space, and the motion end of the linear motion mechanism can do reciprocating linear motion in the direction pointing to the first opening. The tool bit is detachably connected to the moving end from the first opening, and the tool bit can be driven by the moving end to do reciprocating rectilinear motion so as to cut the skin. According to the skin cutting device provided by the invention, compared with bare-handed skin cutting, a medical worker can conveniently and quickly cut the skin of a patient through the skin cutting device, so that the operation efficiency is improved, and the pain of the patient is effectively reduced; by reasonably designing the specification and size of the cutter head, a skin sample with standard size and thickness can be cut, and the inspection precision of skin biopsy is improved.

The utility model discloses a skin biopsy sampling tool, which relates to the technical field of medical treatment, and comprises a tool main body, two cutting plates fixedly connected to the lower end of the main body and symmetrically arranged, and sampling tweezers, the lower end of the main body is provided with a mounting groove, the upper end of the sampling tweezers is mounted in the mounting groove, and the lower end of the sampling tweezers extends out of the lower end of the main body. The extending end of the sampling tweezers and the two cutting plates are combined into an annular structure, a limiting column used for limiting the sampling tweezers is fixedly installed in the installation groove, the annular structure formed by the sampling tweezers and the cutting plates is rotatably inserted into the skin sampling position, the two sides of the sampling tweezers are pressed, the sampling tweezers clamp a skin sample, and then sampling tissue can be pulled out from the skin surface. According to the skin biopsy sampling tool, the combination of the punching sampler and the tweezers is completed, and the problems that when an existing skin biopsy sampling tool is used for sampling, the punching sampler and the tweezers need to be alternately used, the operation time is prolonged, and meanwhile the operation complexity is increased are solved.

Various methods for producing skin grafts for rehabilitation of skin defects are, carried out in a closed system operated and controlled in an automated manner. A skin biopsy may be separated into a dermis layer and an epidermis layer prior to formation of a skin graft. A total skin graft area produced may be 9 times to 1000 times greater than a total skin biopsy area that provides cells for the graft. Differences in density between dermis and epidermis may aid in separation between a dermis and an epidermis layer.

Various methods for producing skin grafts for rehabilitation of skin defects are carried out in a closed system operated and controlled in an automated manner. A skin biopsy may be separated into a dermis layer and an epidermis layer prior to formation of a skin graft. A total skin graft area produced may be 9 times to 1000 times greater than a total skin biopsy area that provides cells for the graft. Differences in density between dermis and epidermis may aid in separation between a dermis layer and an epidermis layer.

The invention provides a tool bit and a skin cutting device, and belongs to the technical field of medical equipment.The tool bit comprises a tool bit body, a cover plate and a tool handle, the tool bit body is in a thin-wall barrel shape, one end of the tool bit is arranged to be a tool edge, and the tool bit body linearly shrinks from the end provided with the tool edge to the other end; the cover plate covers the end, away from the knife edge, of the knife head body, and an exhaust port is formed in the cover plate. The cutter handle is arranged on the side, away from the cutter head body, of the cover plate. The knife head and the skin cutting device provided by the invention are beneficial to formation of a skin edge slight eversion upheaval state in a skin suturing process, are convenient to carry out embedded mattress type subcutaneous suturing, form a state that an incision forms a section slight outward inclination state from a body surface to a dermis direction, are beneficial to beauty healing of the skin incision, improve the operation precision of skin biopsy, and improve the operation efficiency of the skin biopsy. And the benign healing rate and the beauty healing rate of the incision are improved.

The invention discloses a portable skin biopsy gun. The portable skin biopsy gun comprises a mounting base, a launching base, two hammers, two triggering units and two elastic pieces, wherein the hammers, the triggering units and the elastic pieces are in one-to-one correspondence. The launching base is mounted on the mounting seat; an inner launching groove is formed in the launching base, and the inner launching groove comprises a needle tube section, a sliding section and a power section in the first linear direction; the biopsy needle is installed on the needle tube section and extends into the sliding section. The two hammers are slidably connected to the sliding section in the first linear direction, and the front ends of the hammers are aligned with an outer sheath needle and an inner core needle in the biopsy needle respectively. The trigger unit is movably connected to the mounting seat, and the working end of the trigger unit extends into the sliding section and extends into a first positioning hole / second positioning hole formed in the side wall of the corresponding outer sheath needle / inner core needle. The elastic piece is installed on the power section and connected with the driving hammer and the launching base, and when the trigger unit enables the working end of the trigger unit to retreat from the first positioning hole / the second positioning hole under the action of external force, the elastic piece drives the driving hammer to slide forwards and pushes the outer sheath needle / the inner core needle to move forwards.