Skin taking device and using method thereof

Abstract

The invention discloses a skin taking device and a using method thereof. The skin taking device comprises a shell, held by a hand, of the skin taking device. A dry battery for providing power for theskin taking device is arranged in the shell; a direct-current motor and a speed changer are arranged below the dry battery; a connecting shaft extends out of the bottoms of the direct-current motor and the speed changer and is inserted into a hollow rotating shaft. One or two connecting flat keys are arranged between the end surface of the hollow rotating shaft and the step surface of the connecting shaft. A skin taking knife is mounted at the front end of the hollow rotating shaft and includes a hollow knife rod and a trephine knife head connected to the front end of the knife rod; air guiding slots that are distributed in a radial pattern by using the hollow pipe orifice as the center are formed in the end surface of the trephine knife head. A cavity is formed between the connecting shaft end in the hollow rotating shaft and the cutter rod end and is communicated with an outside air guide pipe; the other end of the air guide pipe is connected with an air compressor; a change-over switch in a positive pressure state, a negative pressure state and a normal pressure state is connected to the air guide pipe. A button switch is installed at the top end of the skin taking device shell.

Description

technical field [0001] The invention relates to a surgical instrument for skin implantation, in particular to a skin extractor and a method for using the same. Background technique [0002] Micro-skin transplantation was first applied to large-scale burns. It solved the problem of wound coverage in patients with large-area burns through a smaller skin donor area, and greatly improved the success rate of treatment for patients with large-scale burns. It is characterized by the use of small pieces of skin The sheet evenly covers the wound surface, and repairs the wound surface through the expansion of the microskin itself. It is reported that its maximum area can expand to 100 times its own. The advantage of microskin grafting is the high expansion rate of autologous skin. Histological studies found that the postoperative new skin structure was similar to normal skin, but without appendages. Its advantages are that the operation method is simple, easy to master and populariz...

AI Technical Summary

Problems solved by technology

[0003] The production of traditional micro-skins is to use scissors to artificially make micro-skins, which is time-consuming, laborious, and slow, and often lags behind the excision of the wound, so that the wound cannot be covered in time, delaying the operation time, and causing a large amount of bleeding

For this reason, someone once designed a skin planer, planed a large piece of skin on the skin supply area, and then used a skin crusher to break it down. Although the speed of skin production has been accelerated, the effect of skin grafting is not ideal, such as patent CN201820084186. 7 A kind of roller skin picker for general surgery, which is generally used at present is similar to this type of peeling machine, but for patients with many underlying diseases, elderly and infirm, diabetic foot ulcers, etc., this large The area of ​​skin harvesting has a great influence on the healing of the skin harvesting area

Therefore, this is subject to certain limitations for autologous microskin transplantation

Some people also improved the SFS79-1A three-purpose skinning machine into a cross-shaped skinning machine; some Taiwanese scholars used a mesh skinning machine to supplement the skin on the non-grooved surface of the leather carrier, and coated the sterilized skin on the roller. Olive oil, cut in a cross or from 6 different angles, but still cannot completely solve the problems of skin fixation, cutting, sticking to the knife, etc.

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