136 results about "Skin grafting" patented technology

The device comprises a pre-stretching elastic film layer which is sequentially stacked, a gradient drainage layer is arranged below the pre-stretching elastic film layer, and sealing edges are arranged on the outer edges of the pre-stretching elastic film layer and the gradient drainage layer. The sealing edge surrounds the edges of the pre-stretching elastic film layer and the gradient drainage layer and is used for being bonded with the skin to form a closed cavity. Continuous negative pressure is provided through retraction force of the pre-stretched elastic thin film layer, compared with a traditional external pump, the cost is lower, use is more convenient, adhesion with a postoperative wound part is prevented through the arrangement of the anti-adhesion contact layer, and the postoperative wound part is prevented from being damaged. And meanwhile, the anti-adhesion contact layer is provided with a micron-sized bulge array and nano-sized surface textures, so that the anti-adhesion effect is further ensured, and the drainage efficiency is improved through the design of the gradient drainage layer.

The invention relates to a skin grafting material and a using method thereof. The skin grafting material is composed of compressed sponge and repairing liquid. The compressed sponge is selected from chitosan sponge, collagen sponge or polyvinyl formal sponge; the repairing liquid is selected from normal saline containing human epidermal growth factors and / or normal saline containing superoxide dismutase. The use method comprises the following steps: attaching the skin layer of the cut skin graft to the compressed sponge, then putting the compressed sponge into a medical skin rolling machine, and cutting the skin graft into micro skin graft; the cut miniature skin graft is soaked in the repairing liquid, is attached to the position to be subjected to skin grafting after fully absorbing the liquid and expanding, and is wrapped with gauze. The skin grafting material provided by the invention can reduce damage to newborn granulation when the skin grafting material is removed, has an antibacterial effect and improves scar hyperplasia contracture after a skin grafting wound operation; meanwhile, the sponge which absorbs the liquid and expands can slowly release the repairing liquid, so that skin cell regeneration is promoted, epithelization of a skin grafting area is accelerated, and wound healing is promoted; the healing effect is good, and the application prospect is wide.

The utility model relates to the field of medical skin grafting materials, in particular to an auxiliary tool for MEEK skin grafting, which comprises a water-absorbing sponge in the shape of a square block and used for bearing a skin graft to be cut and to be grafted; the folding sheet comprises a gauze layer and an aluminum foil layer which are stacked together, a plurality of transverse wrinkles and longitudinal wrinkles are arranged on the folding sheet, and a skin carrying sheet area consistent with the water absorption sponge in length and width is arranged between the transverse wrinkles and the longitudinal wrinkles. The biocompatibility is good, the moisturizing performance is good, operation of clinicians is facilitated, and the risk of patients is reduced.

The invention discloses an electric skin taking device and relates to the technical field of medical instruments, the electric skin taking device comprises a rack and a connecting rod, the end of the rack abuts against the end of the connecting rod, the seam of the rack and the connecting rod is in threaded connection with the bottom end of a stand column, and the upper end of the stand column is fixedly connected with the four corners of a frame; guide grooves are formed in the side walls of the racks, the guide grooves of the racks are oppositely arranged, a skin taking assembly is slidably installed between the opposite faces of the racks, and a skin supporting assembly is installed on the upper surface of the connecting rod; the lower surface of the rack is flush with the lower surface of the connecting rod; a control assembly is installed on the upper surface of the frame, and the skin taking assembly and the skin supporting assembly are both electrically connected with the control assembly. According to the electric skin taking device, skin taking operation of a patient can be completed by one person, skin source continuity, integrity and thickness consistency of skin taking can be guaranteed, meanwhile, operation is convenient, and the holding hand feeling is good.

The present disclosure relates to a method to obtain a decellularized dermal matrix from a rabbit, hare or beaver skin graft, the method comprising the following steps: degreasing the skin graft using a hydrocarbon solvent, perchloroethylene, modified alcohols or supercritical carbon dioxide, or combinations thereof; liming the degreased graft by immersing the graft in a solution comprising calcium hydroxide, sodium hydroxide, hydrogen peroxide, or mixtures thereof; fleshing the skin graft; optionally, deliming the skin graft; incubating the skin graft in a solution of ethylenediamine tetraacetic acid; treating the skin graft with a detergent solution for 30 minutes to 3 hours to obtain the decellularized dermal matrix. The disclosure also relates to a decellularized dermal matrix obtained by the method described; to a composition comprising said decellularized cell matrix for use in medicine or veterinary medicine; and to dermo-epidermal skin substitute scaffold comprising the disclosed decellularized dermal matrix.

The invention relates to a traditional Chinese medicine composition for treating burns and scalds, which is prepared from spur root and jade grape root according to a certain compatibility, and has the following effects: pain relieving: aching feeling is relieved or even disappears within 15 minutes; convergence: seepage of tissue fluid can be stopped within two hours; bacteriostasis: after the ointment is used, wounds which are just burnt and scalded or fester for several months can be gradually healed, and necrotic tissues can scab and fall off; skin grafting is not needed for burn and scald patients, scar tissue hyperplasia is avoided, and the disability rate of the patients is greatly reduced.

The invention relates to a monitoring method and device for negative pressure drainage after burn skin grafting, a medium and equipment, and relates to the technical field of negative pressure drainage. The method comprises the steps that at least one actual movement posture of a target patient within a preset duration before the current time is obtained; on the basis of the skin grafting part of the target patient, the actual movement postures, at least one target movement posture where the burn skin grafting patient easily causes loosening of the fit between the dressing and the skin, and at least one corresponding target part, the risk value of loosening of the dressing at the skin grafting part at the current time is determined; and comparing the risk value with a preset risk threshold value, and if the risk value exceeds the risk threshold value, sending a risk prompt to a terminal of a doctor. The negative pressure drainage device has the effect of improving the recovery effect of negative pressure drainage on a patient.

The utility model provides a skin splitting machine suitable for processing allosome / heterogenous skin graft, which is used for splitting in-vitro allosome / heterogenous skin graft and comprises a machine body, the rotating mechanism is arranged on the machine body and used for driving the allogeneic / xenogeneic skin graft to rotate; the fixing mechanism is arranged on the rotating mechanism and is used for fixing the allogeneic / heterogeneous skin graft on the rotating mechanism; and the splitting mechanism is arranged on the machine body and is used for splitting the allosome / heterogeneous skin graft driven by the rotating mechanism to rotate. The skin splitting machine suitable for processing the allogeneic / heterogenous skin graft can specially split the allogeneic / heterogenous skin graft in vitro, and has the characteristics of high precision, high efficiency and convenience in operation.

There is provided a device for processing harvested skin. The device includes a bed 104 to hold a skin graft held over a template 110 and a support part 102 with multiple cutting slots 114 running through a length of the support part 102. The support part 102 is positioned over the bed 104 to apply a uniform force to press the support part 102 against the skin graft. A first cut of the skin graft is performed with a scalpel blade by locking the support part 102 at a zero position against the bed 104 and a second cut of the skin graft is performed by lifting the support part 102 facilitated by a lifting element and locking the support part 102 by rotating the support part 102 to 90 degrees from the zero position with respect to the bed 102 to obtain a square shaped skin graft pieces.

The invention belongs to the technical field of medical equipment, and particularly relates to a skin grafting packaging stitching instrument in surgical operation, which comprises a fresh skin grafting fixing sheet, a transplantation receiving area positioning sheet and a stitching belt, a first connecting piece is arranged at the upper part of the fresh skin grafting fixing sheet, and the fresh skin grafting fixing sheet covers and fixes fresh skin grafting; a first connecting piece is arranged at the upper part of the transplantation recipient area positioning piece, a second connecting piece is arranged at the upper part of the transplantation recipient area positioning piece, the transplantation recipient area positioning piece is positioned near a recipient area, and the sewing belt is used for sewing and fixing the fresh grafted skin near the recipient area through the first connecting piece and the second connecting piece. The method is simple and rapid to operate, short in operation time, small in bleeding amount, small in wound and destructive effect on fresh skin grafting and recipient tissue, low in infection rate, safe and sanitary, and the skin is easy to survive.

The utility model is applicable to the technical field of medical burn and plastic surgery, and discloses a burn and plastic surgery skin grafting auxiliary device which is characterized in that a two-way screw rod is rotatably mounted at the middle end in a transmission frame through a bearing, transmission sleeves are movably sleeved on the surfaces of two ends of the outer side of the two-way screw rod through threads, and a transmission rod is fixedly mounted on the surface of the outer side of each transmission sleeve; and the transmission rods are slidably inserted into the side edge of the transmission frame, a connecting frame is fixedly installed on the surface of the end, away from the transmission sleeve, of each transmission rod, and a transmission plate is fixedly installed on the surface of the bottom of each connecting frame. According to the technical scheme, the two sets of moving plates can be driven to synchronously and horizontally move in the opposite direction or the opposite direction, then the distance between the binding belts at the bottoms of the mounting plates and the moving plates is adjusted, the binding belts can penetrate through and be bound to different positions of limbs of a patient, and then the use applicability of the whole supporting auxiliary mechanism is improved; and the influence on the operation precision of the subsequent skin grafting operation caused by obstruction on the to-be-grafted part of the patient is avoided.

The invention relates to an external ointment for wound treatment, which is mainly used for treating burns and scalds and also used for treating skin soft tissue injury caused by other reasons such as acid-base corrosion, skin soft tissue injury and the like. The traditional Chinese medicine belongs to a wet bandaging therapy, and has the advantages of good effect, stable medicine property, no toxic or side effect, simplicity, feasibility, low price, no injury surface exposure, mobility of a patient during treatment, no obvious scar formation without skin grafting, easy acceptance by the patient and the like if the medicine needs to be carefully changed. Intravenous injection or intramuscular injection or oral administration of a critical patient such as replenishment liquid acid-base balance anti-infection and the like needs to be carried out simultaneously, so that the aim of curing can be achieved.

According to the post-skin-grafting supporting device with the physiotherapy healing promoting function, a physiotherapy healing promoting patch part and a silica gel frame can be attached to the skin around a wound, an internal elastic net provides traction force, a healing medicine bag is loaded with multiple healing promoting medicines and permeates into the wound through a bottom through hole, and a conveying nozzle is arranged to facilitate medicine supplement; the graphene heating sheet is electrified to generate heat which is transferred through the heat conducting plate to accelerate wound blood circulation. A breathable adhesive tape of the traction belt assembly adheres to peripheral skin of a wound, one end of a cotton belt is connected with a silica gel frame, and the other end of the cotton belt is connected with a traction supporting force trimmer through a braided rope. The trimmer winds the braided rope through the knob to pull the skin, skin grafting pulling is reduced, the traction force can be flexibly adjusted through a ratchet wheel and pawl structure, the knob can be reversely rotated to loosen the braided rope by pressing the pawl, the pawl is loosened for fixation after proper adjustment, and healing after skin grafting is effectively promoted.

The invention provides a miniature medical multipurpose skin taking and grafting machine which comprises a shell with the maximum outer diameter smaller than 30 mm; the vacuum chamber is arranged in the shell and is connected with the negative pressure device; the rotary sampling knife mechanism is mounted on the shell, the sample outlet end of the rotary sampling knife mechanism is communicated with the vacuum chamber, and the rotary sampling knife mechanism is used for rotationally cutting skin tissues; the tissue collector is used for collecting skin pulp or releasing waste skin, the shell is provided with a first notch for inserting the tissue collector, the vacuum chamber is provided with a second notch for inserting the tissue collector, and the tissue collector or the vacuum chamber is provided with a sealing assembly for sealing the second notch when the tissue collector is inserted into the second notch. According to the skin grafting device, small-area skin taking can be carried out, skin pulp can be scraped, the skin removing operation of skin in a hair-free area, vitiligo, birthmarks, scars, tattoos and the like can be completed at a time, skin taking, trimming and tiling operation can be completed at a time with the help of a tissue collector, and the success rate of the skin grafting operation can be greatly increased.

The utility model discloses a skin grafting slicing device, and relates to the field of medical supplies. The skin grafting slicing device comprises a base, an upper seat, a cutter set and a pressing plate, a plurality of receding grooves which are formed in a crossed mode are formed in the upper end face of the base, a plurality of containing grooves which are formed in a crossed mode are formed in the lower end face of the upper seat, and the pressing plate is arranged in a mounting groove and connected with a connecting part of the cutter set. When the skin needs to be sliced, the skin which is taken down is placed on the upper end face of the base, then the upper base is placed on the base, the lower end face of the upper base abuts against the upper end face of the base, and therefore the position of the skin is pressed and fixed, and then the pressing plate is pressed downwards to move to a first position; and the avoiding groove plays a role in avoiding the first blade and the second blade, so that the first blade and the second blade can extend out of the storage groove and cut the skin, the skin is cut into small pieces, the skin slicing efficiency can be improved, and the uniformity of the slicing size is improved.

The present disclosure describes techniques for generating a skin rejection prediction model. The skin rejection prediction model may predict the likelihood of skin rejection for a skin graft site. Tire skin rejection prediction model may be generated by using a plurality of feature selection models to select a model subset from training data. Candidate skin rejection prediction models may be trained using the model subset. The skin rejection prediction model may be selected from the candidate prediction models based on determining a performance metric associated with each candidate prediction using a test subset of tire training data.

The present application relates to a kind of skin grafting materials and its preparation and use method, which is composed of carrier sheet, anvil sheet and repair liquid, without skin adhesive;When using, cut skin dermis layer is attached to anvil sheet, put into medical leather rolling machine, and cut into microskin grafting;Spray repair liquid on the cut microskin grafting, transfer to carrier sheet, paste in the place to be grafted, separate aluminum foil and take down, wrap with gauze.The skin grafting material provided by the present application can reduce the damage to new granulation when removing skin grafting material, has the effects of antibacterial and anti-inflammatory, promoting repair and healing, promoting cell proliferation, providing scaffold for cell crawling, hemostasis, absorbing exudate, reducing scar formation and pigmentation, etc., can effectively accelerate epithelialization in skin grafting area;The effect after recovery is good, can be used for burn and scald, mechanical trauma, diabetic foot and other wounds, and has wide application prospect.

The utility model provides a kind of skin grafting operation line divider, belong to medical instrument technical field.The skin grafting operation line divider, including operation line divider main part, the operation line divider main part includes sliding rail, sliding handle, connecting block, extrusion groove, push block, fixed block, clamping rod and engagement lever, when needing to use, the bandaging line on the surface of operation line divider main part is placed on the surface of clamping rod, make line clamping in clamping rod inside, rotate operation line divider main part and line to make line winding in the surface of packing pile, after packing is completed, line is placed between another group of recess and engagement lever, it is convenient to fix packing line, pull sliding handle, to make cutting blade slide in sliding groove, cut the line on the surface of sliding rail in the process of sliding, to complete fixed, make packing fixed more convenient.

The invention provides a method for preparing a skin graft composition comprising (a) obtaining, from a subject requiring a skin layer patch or dressing, a skin sample, (b) placing the skin sample in a container with a sterile medium, (c) separating fibroblasts and keratinocytes from the skin sample to obtain a solution comprising fibroblasts and keratinocytes or reshaping and resizing the skin sample to obtain a solution comprising the reshaped and resized skin sample, and (d) combining the fibroblasts and the keratinocytes with a matrix to thereby form a skin graft composition. The invention also provides a method for providing a skin graft composition to a subject, as well as a method of providing a skin layer patch or dressing, or a skin graft, to a subject in need thereof.

The utility model relates to the technical field of medical instruments, and discloses a skin grafting device for deep wound treatment, which comprises a first pincer body and a second pincer body which are hinged, the first pincer body and the second pincer body have the same structure, each of the first pincer body and the second pincer body comprises a pincer head and a pincer handle, the pincer heads partially extend downwards to form pincer mouths, and the pincer mouths are connected with the pincer handles. The outer side walls of the pincer mouths are conical surfaces, the cross sections of the pincer mouths are sequentially reduced in the direction, away from the pincer head, of the pincer mouths, conical grooves are formed in the inner side walls of the pincer mouths, the first pincer body and the second pincer body rotate relatively till the two pincer mouths are attached, and the two conical grooves are matched to form a positioning hole used for planting a skin column; holding parts are arranged at the ends, away from the forceps mouths, of the forceps handles, and reserved holes for grasping are formed in the holding parts. The utility model has the beneficial effects that the three-dimensional implant can be applied to a three-dimensional implant operation, and is convenient for realizing skin column transplantation.

According to the skin grafting device and method for the silicon carbide honeycomb ceramic carrier, high-quality and high-efficiency skin grafting of the silicon carbide honeycomb ceramic carrier can be achieved, meanwhile, dependence on manpower is reduced, the product consistency and the production efficiency are improved, and the production cost is reduced. The rotary driving assembly is used for bearing the silicon carbide honeycomb ceramic carrier and driving the silicon carbide honeycomb ceramic carrier to rotate; the top pressing assembly is used for pressing the silicon carbide honeycomb ceramic carrier from the top; the blade coating assembly is used for scraping and trimming pug coated on the surface of the silicon carbide honeycomb ceramic carrier; the skin grafting template and the floating clamping mechanism are matched to be clamped at the two ends of the silicon carbide honeycomb ceramic carrier, the skin grafting template is used for limiting the skin grafting outer diameter of the silicon carbide honeycomb ceramic carrier, and the floating clamping mechanism can conduct self-adaptive adjustment on radial run-out of the silicon carbide honeycomb ceramic carrier during rotary machining.

1. Name of the product in this design: Skin grafting machine main controller (YL-1). 2. Purpose of this design: It is used in the main controller of a skin grafting machine to control the handheld component. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to skin graft care technical field, especially a kind of for surgical skin graft area inflatable pressurizing fixing device, including pressurizing fixing device body and the packing box being arranged at the outside of pressurizing fixing device body, the outermost layer of pressurizing fixing device body is away from skin graft area, and support outer protective disc is arranged, the periphery of support outer protective disc is fixedly connected with the fixed wing for supporting outer protective disc and skin fixed, the lower end inboard of support outer protective disc is movably installed with the interlayer support disc that can be axially slid along support outer protective disc by guide portion.The skin graft area can be wrapped and protected in the present application, and the pressurizing fixed force condition can be adjusted and understood clearly during use, and it is convenient to carry out multi-point color observation operation on skin graft area, effectively reduce the occurrence of problems such as accidental tearing of skin graft area, unclear pressurizing fixed force and poor visualization effect, so as to improve the effect and stability of postoperative pressurizing fixation of skin graft area.

A fluid mixing and delivery system including a fluid injector to receive first and second fluids to be mixed together so that the resultant mixture can be delivered to a target site. The injector has particular application for introducing two fluid adhesive reagents to one another to produce a biomedical glue suitable to seal or plug a skin graft, wound, tear or minor break in the tissue or bone of a patient. The injector has a proximal end at which to receive the first and second fluids under pressure and a distal end at which the first and second fluids are mixed together within a common canal and expulsed therefrom by way of an exit tip. The common canal has a diameter that expands from narrow to wide in the direction of the mixture flowing therethrough to create a Per de Lavel anti-clogging nozzle and a Venturi effect at the exit tip so as to avoid a bottle neck blockage.

The invention relates to an intradermal swelling liquid injection syringe for a skin grafting and taking area of a burn patient, and belongs to the technical field of medical instruments. The injector comprises an injector body and a mounting seat, an outer tube, a slidable needle tube, a piston, a liquid storage cavity, an injection steel needle, a liquid injection valve and a stop valve are arranged in the injector body, and the rear end of the injector body is connected with a distribution module. The first airtight space and the second airtight space are used for controlling piston propelling and needle tube displacement respectively, and needle inserting before injection and stable-pressure output in the injection process are achieved. The mounting seat is used for fixing the syringe on the body surface of a patient, the transparent observation window is arranged at the top and used for monitoring the needle inserting process, the skin-attaching face is made of soft medical materials, and compression on burnt skin is reduced while positioning precision is guaranteed. The system can dynamically adjust the injection speed based on the injection resistance change rate or the tissue tension state, the liquid injection uniformity is improved, and tissue damage is reduced.

The present disclosure relates to a skin graft cutting device, comprising: a skin graft cutting mechanism, the skin graft cutting mechanism cutting the skin graft into a shape that meets the requirements of the skin grafting operation; a three-dimensional moving mechanism, the three-dimensional moving mechanism holding the skin graft cutting mechanism and comprising an X-axis moving component, a Y-axis moving component, and a Z-axis moving component, thereby being able to move the skin graft cutting mechanism along mutually orthogonal X, Y, and Z axis directions; and a base, the three-dimensional moving mechanism being disposed on the base. The skin graft cutting device disclosed herein has a wide range of applications, is easy to operate, has adjustable mesh and skin graft size specifications, has uniform particle morphology, and has high activity retention, and is particularly suitable for use in various skin grafting operations.

The utility model discloses a foot sole hot wet compress cover sleeve used before skin taking of a burn patient, which comprises a foot sleeve body, a foot sole pad body arranged at the bottom of the foot sleeve body, an inner concave cavity arranged on the foot sole pad body, a heat insulation coating arranged on the inner side wall of the inner concave cavity, a heat preservation heating layer matchingly padded in the inner concave cavity, and a wet compress towel strip matchingly padded on the heat preservation heating layer. And a power supply body is also arranged at the foot root part of the foot sleeve body, is connected with the heat preservation heating layer, and provides a heating power supply for the heat preservation heating layer. According to the utility model, not only can a stable temperature and humidity environment be kept, but also effective geothermal wet compress treatment can be carried out on the pelma skin, so that the pelma cuticle can be better softened, the subsequent pelma skin taking and skin grafting operations are facilitated, and the device is simple and convenient to operate, is very suitable for practical clinical nursing use, and has a better application value.

The utility model relates to the technical field of skin grafting, in particular to an abdomen pedicle skin flap hand warning fixing brace which comprises a vest, an arm protecting plate and an arm supporting plate, the vest comprises a neckline, the bottom of the vest is fixedly connected with the arm supporting plate, the arm supporting plate is hinged to the arm protecting plate, a shielding structure is arranged on one side of the arm supporting plate, and the neckline is connected with the vest. An adjusting structure is arranged on the shielding structure; the adjusting structure comprises a connecting frame, the inner wall of the connecting frame is rotationally connected with a threaded rod through a bearing, the top end of the threaded rod movably penetrates through the connecting frame and is fixedly connected with a rotary knob, and the surface of the threaded rod is sleeved with a sliding block in a threaded mode. By means of the arranged adjusting structure, the vertical height of the torsion spring clamp can be conveniently adjusted, the skin grafting position is limited after the torsion spring clamp is adjusted to different heights, fingers are fastened in the limiting groove through the torsion spring clamp, and the phenomenon that under the unconscious condition of a patient or when the patient is touched by an external object, the suturing position is broken, and the patient needs to be sutured for the second time is avoided.

The invention relates to the technical field of burn treatment, in particular to a microenvironment regulation type skin grafting fixing and healing promoting device which comprises a controller, an upper clamping plate and a lower clamping plate. Telescopic pieces are symmetrically arranged on the two sides of the lower clamping plate, connecting rods are hinged to the two ends of each telescopic piece, rotating shafts are fixedly connected to the ends, away from the telescopic pieces, of the connecting rods, and the rotating shafts are in rotating fit with the lower clamping plate and are coaxially and fixedly connected with threaded rods which are in threaded fit with the upper clamping plate; a sealing assembly for providing a sealing environment for a skin grafting part is arranged at the bottom of the upper clamping plate; the top of the upper clamping plate communicates with a ventilation pipe, and an opening and closing assembly used for adjusting the ventilation capacity of the ventilation pipe according to the telescopic degree of the telescopic piece is arranged in the ventilation pipe. A detection assembly used for detecting the swelling degree of the limbs is arranged on the lower clamping plate, and the controller controls the telescopic degree of the telescopic part based on the swelling degree. According to the invention, the clamping force of the skin grafting area can be automatically and dynamically adjusted.

The invention relates to an automatic width adjusting device, method and system for a skin taking machine, and relates to the technical field of medical instruments.The automatic width adjusting device comprises a skin taking knife body, a blade is installed on the skin taking knife body, a skin taking part is formed on one side of the blade, and a bottom plate is arranged on the skin taking knife body; the two bottom plates are oppositely arranged on the side, close to the skin taking part, of the blade. A driving assembly is arranged on the dermatome body and drives the two bottom plates to slide towards the sides close to each other or away from each other. An adjusting rod is rotationally installed on the side, close to the skin taking part, of the skin taking knife body, a rolling wheel is rotationally installed at one end of the adjusting rod, and an encoder is installed in the rolling wheel and used for measuring the angular displacement of the rolling wheel. The cut healthy skin can be better attached to the burn wound skin defect position, waste of the healthy skin in the skin grafting repair operation is reduced, and meanwhile damage to the healthy skin taking position is reduced.