5 results about "Skin expander" patented technology

The utility model discloses a liquid injection device of a skin expander. The liquid injection device comprises a liquid injection disc, a pressing injection machine, a liquid injection pipe and a sterile injector. An injection hole is formed in the lower side surface of the liquid injection disc, and a liquid inlet hole is formed in the side wall; the pressing injection machine comprises an outer shell, an injection needle, a spring, a push rod, a locking piece and a pressing seat; a circulating hole is formed in the side wall of the outer shell, and an injection port over against the injection hole is formed in the bottom of the outer shell; the locking piece is fixed to the inner wall of the outer shell, limiting grooves are distributed in the lower side face of the locking piece, and guide rails are distributed on the inner wall of the locking piece. The injection needle is fixed on the push rod; sliding claws are distributed on the upper end face of the push rod; sawteeth are distributed on the lower side face of the pressing base. Sliding blocks corresponding to the guide rails are distributed on the outer side wall of the pressing seat; the spring is mounted outside the injection needle; one end of the liquid injection pipe is communicated and connected with the liquid inlet hole, and the other end of the liquid injection pipe is matched with an injection port of the sterile injector. The operation difficulty of liquid extraction and injection in the skin expansion operation can be reduced, and the occurrence of needle head bending and patient pain caused by needle head bending is reduced.

The invention belongs to the technical field of medical drainage surgical instruments, and discloses a gear-adjustable skin expanding needle knife special for drainage, which comprises a knife handle, a knife bar, a gear adjusting assembly and a limiting mark, a hollow cavity is formed in the knife handle, and a positioning groove matched with the gear adjusting assembly is formed in the knife handle; a positioning groove is formed in the knife handle, one end of the knife rod is movably connected with the knife handle, a skin expanding knife head is fixed to the other end of the knife rod, the gear adjusting assembly is arranged in the hollow cavity and comprises an adjusting button, an elastic clamping block and a reset spring, and the adjusting button penetrates through the positioning groove. The skin expanding caliber can be rapidly switched through the gear adjusting assembly, a plurality of special skin expanding needle knives do not need to be prepared for drainage tubes of different specifications, the reserve amount of clinical instruments is greatly reduced, and the medical cost is reduced; meanwhile, operation interruption caused by frequent instrument replacement is avoided, and drainage operation efficiency is improved.

The utility model discloses a directional skin expander arranged in the nose part, which comprises an expansion bag. At least one partitioning drainage plate is fixedly connected to the inner wall of the expansion bag, and the partitioning drainage plate divides the expansion bag into an expansion part and a stabilizing part. A fixing member is arranged on the side wall of the partitioning drainage plate, and the end of the fixing member penetrates the bag wall of the expansion bag which is connected to the partitioning drainage plate. A liquid path guide pipe is fixedly connected to the expansion bag. An injection bottle is fixedly connected to the liquid path guide pipe. The utility model is provided with the partitioning drainage plate in the expansion bag, and the inner part is divided into the expansion part and the stabilizing part by the partitioning drainage plate. After the liquid is injected, the liquid is mainly located in the expansion part, so that the lower half of the expansion bag is expanded only under the action of gravity. For the alar part without bone support, two partitioning drainage plates are arranged, one of which prevents the lower half of the expansion bag from being expanded only under the action of gravity, and the other prevents the expansion bag from being expanded towards the back, so that the problem of poor expansion effect of the expansion bag can be effectively solved.

The utility model discloses a directional skin dilator of configuration in neck, include: dilatation sac. Two piece of the side wall of interlayer drainage board and the inner wall fixed connection of dilatation sac, separate to get dilatation part and stable part. The fixed part ring is equipped on the side wall of interlayer drainage board, and the end of fixed part penetrates the sac wall of dilatation sac and interlayer drainage board. Liquid path catheter and dilatation sac fixed connection. Injection pot and liquid path catheter fixed connection. The utility model is equipped with interlayer drainage board in dilatation sac, and the inside is divided into dilatation part and stable part through being provided with interlayer drainage board, makes after injecting liquid, liquid mainly is located dilatation part, thereby prevents liquid under the action of gravity and only dilatation lower half part of dilatation sac, and because neck lacks support and expands inwards. The inside of dilatation sac is provided with the partition plate and is separated to dilatation part, and is connected different liquid path catheter, makes through above -mentioned setting dilatation sac of dilator and expands to specific direction, thereby responds to the small -range expansion of neck.

The utility model provides a positioning type water injection auxiliary device of a skin dilator, which comprises an injection pot, a first connecting piece, a second connecting piece and a water injection pipe, one side of the injection pot is connected with a connecting pipe, the other side of the injection pot is provided with a first connecting piece, and the upper surface of the injection pot is provided with a puncture hole; the auxiliary supporting assembly comprises a positioning base, a support and a needle head base, the positioning base is detachably connected with the first connecting piece, and the support is rotationally installed on the positioning base. According to the device, puncture of the puncture needle is limited through the auxiliary supporting assembly, it is guaranteed that the puncture needle can accurately puncture into a puncture hole, the risks of injection pot leakage, damage and treatment failure which are increased due to puncture needle failure are avoided, unnecessary pain is caused to a patient, meanwhile, the puncture needle can be fixed to a certain degree through the needle head base, and the puncture needle is fixed to a certain degree. The device is simple in structure and convenient to use, and meanwhile, the working difficulty of medical staff is reduced to a certain extent.