14 results about "Skin expander" patented technology

The invention relates to the technical field of skin dilators, and discloses an external skin dilator which comprises a main body assembly, an external skin dilator body and an external skin dilator body. The adjusting assembly is located on the bonding plate and comprises a fixing piece, the fixing piece comprises a first fixing block, a second fixing block and a third fixing block, and the first fixing block is fixed to the bonding plate. The dilator has the advantages that the dilator integrates the preoperative skin dilation function and the postoperative tension reduction function, the preoperative dilation function can continuously generate outward tension on the skin around a pre-operation, the slack area of the skin around the pre-operation is relatively enlarged, meanwhile, the tension reduction function can be achieved after the operation, the tension of the edge of a wound is reduced, and the wound healing effect is improved. The dilator is simple in structure and convenient to use, wound healing is facilitated, tension can be adjusted, the tension borne by skin is always within a safe and reasonable range, the dilator cannot shield an operation site in an operation, and it is guaranteed that a doctor can clearly observe and operate the operation area.

The utility model relates to the technical field of medical instruments, and discloses a skin dilator which comprises a U-shaped frame, one wing plate of the U-shaped frame can slide in the length direction of a web plate to change the size of an opening of the U-shaped frame, the U-shaped frame comprises a fixing rod, a first connecting rod and a second connecting rod, the fixing rod corresponds to the web plate of the U-shaped frame, and the first connecting rod is connected with the web plate of the U-shaped frame. The two connecting rods correspond to two wing plates of the U-shaped frame, the first connecting rod is fixedly connected with the fixing rod, a through hole for the fixing rod to pass through is formed in the end, close to the fixing rod, of the second connecting rod, and a locking piece used for locking the relative position of the fixing rod and the second connecting rod is arranged between the fixing rod and the second connecting rod. The utility model solves the problems in the prior art that the operation is troublesome, the efficiency is low and the workload of doctors is increased because the iron wire frame is prefabricated by the doctors for each patient.

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 insulation skin expansion, and particularly relates to an insulation skin expansion machine which comprises a machine base, a protective cover arranged above the machine base and an air pump assembly located in the machine base. The inflation enclasping mechanism comprises segmented air bags which are mutually independent, and each segmented air bag is communicated with an air inlet pipeline; the conical expansion shaft is arranged at the center of the plurality of segmented air bags and is used for expanding the tightly-held insulation skin; the to-be-wrapped piece is arranged at the large-diameter end part of the conical expansion shaft, so that the expanded insulation skin is wrapped on the surface of the to-be-wrapped piece; the Y-axis moving module is arranged in the protective cover; the at least two groups of clamp modules are arranged in the protective cover and are used for clamping and fixing the suspended conical expansion shaft; and the movable tip cone modules are arranged on the inner walls of the two sides of the protective cover to abut against and support the two ends of the conical expansion shaft.

The invention discloses a skin expansion and isolation device for an operation, and relates to the field of medical instruments, a main body of the skin expansion and isolation device is provided with a skin expander, a protective film is integrally formed around the skin expander, and the protective film can be flatly laid on the surface of the skin of a patient, so that a gap between the skin expander and the skin of the patient is filled, and an incision is further isolated; the problem that polluted blood permeates into an incision of a patient from a gap in an operation is avoided, the sealing effect of the skin dilator and the incision is improved, when pneumoperitoneum needs to be established, a trocar is inserted into the skin dilator, and after the protective film is cleaned and disinfected, the protective film is folded and fixed to the trocar through a sealing piece, so that the pneumoperitoneum can be established. As the protective film and the skin expander are integrally formed and are not easy to separate, the structure replaces an end cover and can also be used for maintaining pneumoperitoneum.

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 provides a puncture skin cutting knife which comprises a handle, a sharp knife blade and a guide tube, the sharp knife blade and the guide tube are both fixed on the handle, a knife point of the sharp knife blade is tightly attached to the outer side wall of the guide tube without a gap, and a guide wire can penetrate through the guide tube. According to the structure of the puncture skin cutting knife, when the guide tube enters the guide wire tunnel, the sharp knife blade can be accurately close to the guide tube to enter a puncture point to cut the skin, so that a skin expander can conveniently enter subcutaneously and further expand subcutaneous tissues, blood vessel walls or other target tissues, and a catheter can smoothly enter a target position.

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 invention discloses an abdominal cavity puncture drainage assembly which comprises an injector, a puncture needle, a right-angle bent pipe with a plug, a drainage catheter, a boosting clamp, a drainage pipe, a liquid collection bag and an air bag. The key use steps are as follows: puncturing; the puncture section enters the abdominal cavity of the patient. Expanding the skin; the reducing section and the skin expanding section are slowly inserted into the abdominal cavity of a patient, and the puncture hole is gradually expanded. Placing a tube; the whole drainage catheter is sleeved on the puncture needle, a doctor holds the boosting clamp to clamp the drainage catheter on the outer side of the belly, and the drainage catheter is gradually clamped and inserted into the belly of a patient. Two parts of a guide wire and a skin expander in the prior art are omitted, skin expansion can be directly performed after puncture, the risk of organ injury in the operation process is reduced, and the puncture and drainage device has the advantages of guaranteeing comfort of a patient, preventing drainage liquid from flowing back and improving puncture and drainage operation efficiency.

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 invention provides a directional skin expander customization method, device and equipment and a medium. The method comprises the steps that body surface three-dimensional data and skin data of a target patient are acquired; determining lesion data and lesion peripheral data based on the body surface three-dimensional data; the lesion periphery data indicates data of skin meeting preset conditions at the lesion periphery; based on the lesion data, determining a target part related to lesion; determining a structure scheme of the skin expander based on the target part; comprehensively analyzing the lesion data, the lesion peripheral data and the skin data, and determining initial parameters of the skin dilator; simulation expansion is carried out based on the initial parameters of the skin expander, whether the initial parameters need to be corrected or not is determined, and if yes, the initial parameters are corrected to obtain target parameters; and performing modeling based on the target parameters to obtain a target expander. According to the invention, a complex anatomical region can be accurately matched, high efficiency, controllability and safety are realized, the treatment effect is improved, and the individualized medical experience is improved.

The invention discloses an external needle fitting type flow-speed-adjustable Y-shaped closed puncture device, and belongs to the field of medical instruments, the device adopts an integrated design of an external needle and a drainage tube, the complex steps of using a guide wire and a skin expander in the traditional operation are avoided, the drainage tube is synchronously placed in the puncture process, and the puncture efficiency is improved. The operation process is obviously simplified; and the infection risk is reduced. The flow speed adjusting device flexibly controls the flow speed of liquid through a Robert clamp, is simple in design and convenient to operate, and can effectively reduce complications caused by too high flow speed. The Y-shaped drainage tube structure achieves separation of the drainage outlet and the liquid medicine injection opening, cross contamination is prevented, and the treatment safety of a patient is improved through reliable leakproofness and anti-infection capacity. The device integrates operation simplification, flexible regulation and control and efficient sealing, is suitable for clinical scenes such as drainage of pleural cavity, abdominal cavity and pericardial effusion, and has remarkable innovativeness and wide clinical application value.

The utility model relates to a skin dilator extension tube which comprises a flexible tube body, the inner wall of one end of the flexible tube body is fixedly connected with a first metal connecting tube, the other end of the flexible tube body is communicated with a communicating chamber, the communicating chamber is connected with a second metal connecting tube, one end of the second metal connecting tube extends into the communicating chamber, and the other end of the second metal connecting tube extends into the communicating chamber. According to the skin expander, the connecting pipe of the skin expander can be lengthened, the butt joint position after lengthening is smooth, the skin expander can enter a wound, the butt joint position is connected firmly, the connecting effect is guaranteed, the one-way valve assembly is arranged, and therefore the connecting pipe can be conveniently and rapidly lengthened. And liquid backflow is prevented.

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.