39 results about "Wound size" patented technology

The invention discloses a preparation method of a dendrobium officinale extract. The method comprises the following steps: by taking fresh dendrobium officinale strips as a raw material, performing fermentation with neutral protease after juice squeezing; quickly freezing fermentation liquor, naturally unfreezing the fermentation liquor, and removing starch and other impurities from the fermentation liquor; removing a starch solution through treatment with strongly acidic cation exchange resin and weakly basic anion exchange resin; and finally performing concentration with a titanium stick filter, performing alcohol precipitation and centrifugation, collecting supernatant, and freeze-drying the supernatant to prepare the dendrobium officinale extract. The preparation method is simple to operate, low in cost and high in industrialization degree. The dendrobium officinale extract provided by the invention is used for preparing medicines for treating wounds. Compared with a control group, the dendrobium officinale extract is remarkably different in wound size, healing speed and mean healing time within 10 days after operation of rabbits; and the dendrobium officinale extract can speed up the healing of a wound of a wound model rabbit.

The present invention is a calibration and measurement system designed primarily for use in the rapid evaluation and characterization of open or visible wounds in patients. The invention in a preferred embodiment comprises a set of colored concentric rings, constructed of paper or synthetic material. The practitioner removes only as many rings, from the center outward, until the entire wound is visible within the open aperture at the center of the remaining rings. The area dimensions of the wound are then read out from the size of the inner remaining ring. Photography optionally records the wound appearance and size. A related system is developed for linear dimensioning of wounds. This invention is also designed to standardize the color scheme for accurate photography wound description. This color scheme is also applicable to a linear device to accurately describe wound size. The invention is also useful in forensic and accident investigations.

The present invention provides methods for treating critical limb ischemia (CLI), including increasing wound healing, decreasing wound size, increasing survival-free amputation, preventing amputation, preventing or delaying de novo gangrene, increasing survival probability, and preventing or delaying death, in subjects who prevent a vascular occlusion that cannot be resolved by using a standard method of revascularization, i.e. a subject with “no-option” CLI. Methods of the invention include administering to a subject with no-option CLI an isolated cell composition for tissue repair comprising a mixed population of cells of hematopoietic, mesenchymal and endothelial lineage, wherein the viability of said cells is at least 80% and the composition contains: a) about 5-75% viable CD90⁺ cells with the remaining cells in said composition being CD45⁺; b) less than 2 μg/ml of bovine serum albumin; c) less than 1 μg/ml of a enzymatically active harvest reagent; and d) substantially free of mycoplasma, endotoxin, and microbial contamination.

The invention belongs to the field of medical instruments and particularly relates to a novel bandage for wound healing. Since an electric heating wire and heat conduction blocks matched with the electric heating wire are arranged on a bandage body, uniform and quick heating on medicine in the bandage body can be achieved. The bandage body is provided with a wound attachment portion. A medicine storage portion composed of interception parts and a cavity is arranged in the wound attachment portion, and accordingly a medical worker can add the medicine according to the size of a wound. According to the novel bandage for wound healing, a medicine feed pipe is arranged at one end of the cavity of the wound attachment portion so that the medical worker can select and add the medicine in a targeted mode according to the causes of the wound, the wound can be well treated, and then fast healing of the wound can be achieved.

The invention discloses multi-functional dressing for firearm perforating wound in limbs. The multi-functional dressing for the firearm perforating wound in limbs comprises a column-shaped outer layer, a self-expansion layer is arranged in the outer layer, and developing silk is arranged in the self-expansion layer. The multi-functional dressing for the firearm perforating wound in limbs is filled in the wound, the filling number can be decided according to the wound size, after the dressing is filled, the dressing expands quickly in the blood so as to fill the wound cavity gap and form pressure in partial to play a role of hemostasis by compression; after the self-expansion layer expands, oxidized regenerated cellulose at the outer layer of the dressing fits with the tissue to play a role of hemostasis; nano-silver in the outer layer of the dressing can release slowly to develop an anti-infection effect and restrain early bacteria breeding; PVA sponge in the self-expansion layer has strong water-absorbing quality so that the PVA sponge is capable of keeping the wetness of the wound and good for healing; the dressing can be taken out through pulling the silk, the dressing silk is included in the dressing, and the dressing residue can be found through X-ray examination; the multi-functional dressing for the firearm perforating wound in limbs is featured with hemostasis, infection resistance, self expansion, adhesion resistance and easiness in taking out.

The invention discloses a nail anvil, which overcomes the defect that the wound of the nail anvil used by an end-to-end annular cutting anastomat on a life body is larger. The nail anvil comprises a center rod, a cap body and an annular cutter anvil, wherein the center rod is rotationally connected with a connecting part arranged on the cap body, an eave part is arranged on the center rod, a stop block is arranged on the end surface of one end, connected with the connecting part, of the center rod, a torsional spring is elastically arranged between the eave part of the center rod and the connecting part of the cap body, and the part of the end surface of one end, which extends out of the center rod and is connected with the connecting part, of the stop block is pressed on the cap body by the annular cutter anvil, so that the cap body is propped on the center rod. The nail anvil provided by the embodiment of the invention has the advantages that the wound size during the end-to-end annular cutting surgery can be reduced, the damage to the wound is reduced, the wound healing difficulty is reduced, and the wound healing time and the life body recovery time after the surgery are shortened.

The invention provides a foot-ankle fusion structure and a joint fusion device, which relate to the technical field of medical instruments and solve the problem that the stability of the fusion nail in the prior art is poor and the required wound size is large. The ankle-foot fusion structure comprises a main screw and a locking screw, a plurality of sets of locking holes are arranged on the mainscrew, the axial extension directions of the locking holes in each set of locking holes are different, and the locking screw can pass through any one of the locking holes in any set of locking holes.The foot-ankle fusion structure is applied to the foot-ankle fusion operation; the main screw and the locking screw mutually cooperate with each other, the stability is strong, the locking screw is fixed on the main screw, the position of the locking screw is easy to locate, and the wound size is small.

A hydrophilic pliable wound dressing consisting of biopolymers creates a new approach to wound dressing by providing a self-assembling hydrophilic gel type moisture permeable barrier applicable to a wide range of wound sizes and depths. Biodegradability and water solubility enable rapid and safe disposal, obviating a significant problem that occurs with conventional type dressings. The initial sheet form of the dressing provides an ideal carrier for delivery of nutrients, debriders, antibiotics, analgesics and physiological regulators.

The invention belongs to the technical field of tumor treatment, and particularly relates to a tumor resection device. The invention provides a sheme as follows, the tumor resection device comprises a supporting tube, an inner ring of one end of the supporting tube is slidably sleeved with a telescopic cutting assembly, a position adjusting mechanism fixedly connected with the supporting tube is installed at the end, extending into the supporting tube, of the telescopic cutting assembly, the other end of the supporting tube is connected with a discharging tube, and the supporting tube is provided with a driving assembly used for driving the telescopic cutting assembly to rotate. The tumor resection device is convenient and fast to operate, can adjust the excision depth and the excision contact area according to the tumor size of a patient, is particularly suitable for minimally invasive operation of tumor excision, the wound size of the patient during an operation is reduced, is helpful for subsequent wound healing of the patient, and the operation effect is improved.

The invention relates to a hemostatic material and preparation thereof, in particular to a mesoporous silica microsphere and rhizoma bletillae polysaccharide composite hemostatic material and a preparation method thereof. The composite hemostatic material is characterized by being prepared from mesoporous silica microspheres and rhizoma bletillae polysaccharides according to a weight ratio of 1:1-4. The technical scheme includes that by taking the advantage of large specific surface area and porous structure of the mesoporous silica microspheres and taking advantages of astringency, hemostasisand platelet aggregation promotion of rhizoma bletillae polysaccharides, the rhizoma bletillae polysaccharides are positioned in the mesoporous silica microspheres, so that the mesoporous silica microspheres serve as carriers while making use of the characteristics of the rhizoma bletillae polysaccharides is realized. Therefore, the composite hemostatic powder has advantages of high water absorption rate, great hemostatic effects, convenience in use, freeness of wound surface and wound size limitations and the like, can be used for wound hemostasis and surgical nursing and is an excellent visceral wound hemostatic material.

The invention discloses a rescue hemostasis device for the department of cardiology. The device comprises a bottom plate, a vertical plate, a reinforcing rod, a box body, a partition plate, a negative pressure pump, a negative pressure pipe, a corrugated pipe, a suction head, a motor, a rotating shaft, a gear, an adjusting rod, a tooth groove, a positioning plate, a positioning hole, an adjusting plate, an arc groove, a long hole, an end, a positioning rod, a reset spring, a connecting piece, a connecting plate, a connecting shaft, a mounting plate, an illuminating lamp, a fixing plate, a connecting rod, a sleeve, a knob, a buffer spring, a pressing plate, an opening, a sliding groove, a pressing block and a sliding block. A top plate and a handle. The hemostasis device has the beneficial effects that hemostasis treatment is achieved through cooperation of the adjusting plate and the pressing plate, hemostasis is conducted on a patient through the extending adjusting plate and the pressing plate, the problem that the position of a wound cannot be observed is avoided, and the angle of the pressing plate can be conveniently adjusted according to the position of the wound of the patient; the hemostasis part can be adjusted according to the size of a wound of a patient, the angle of the adjusting plate is adjusted according to wound distribution, and the first-aid efficiency is improved.

The invention discloses a tissue defect repairing film loader and a preparation method thereof, belonging to the technical field of medical equipment. The preparation method comprises the following steps: mixing a dimethyl/methyl vinyl siloxane copolymer and fiber enhanced silicon dioxide, in a mass ratio of (0.8-1.2):(0.8-1.2), in a mixing machine; pouring the mixture into a mould, and moulding in a vacuum state at 100-160 DEG C; performing sulfurizing treatment in an inert atmosphere at 200-300 DEG C to obtain a loader body; coating the surface of the loader body with a high molecular polysaccharide solution by a tape casting process; and drying to obtain the tissue defect repairing film loader. The preparation method disclosed by the invention is simple; the tissue defect repairing filmloader can be shaped freely according to clinical needs so as to help a doctor judge the wound size; moreover, the tissue defect repairing film loader perfectly fits a biofilm material while having afixing and supporting ability, thereby promoting regeneration and repair of the wound tissue; and meanwhile, the loader can be applied to human body safely, and has good tissue compatibility.

The invention discloses a drainage port nursing device which comprises a nursing bag body, the nursing bag body is composed of a drainage end face, a liquid outlet end face and a connecting pipe, the drainage port nursing device further comprises a shell set installed on the surface of the connecting pipe, a cavity is formed in the shell set, and a circular limiting plate set is arranged in the cavity. A comparison shearing piece for limiting the cutting shape is arranged on the circular limiting plate group; the driving piece is arranged in the cavity; according to the drainage opening nursing device, drainage liquid generated when the drainage tube is pulled out is treated through the nursing bag body, the liquid outlet end face is pinched to be flat to generate negative pressure so that the flow speed of the drainage liquid can be increased, the drainage liquid flows out through the liquid outlet, meanwhile, the drainage end face can be cut according to the size of a wound of a patient, and therefore the drainage opening nursing device is convenient to use. And the cutting position can be in a fit state with the skin of the patient by comparing the shearing piece, so that the wound surface of the drainage opening is kept dry and clean, and the wound surface is promoted to heal.

The invention discloses a method for preparing a liquid bandage. The method includes dispersing a block polymer consisting of a non-polar chain segments and polar chain segments into a solvent mixtureconsisting of a non-polar solvent and a polar solvent to prepare a polymer solution; dispersing a thickening agent into a solvent mixture consisting of a non-polar solvent and a polar solvent to prepare a thickening agent solution; adding the thickening agent solution into the polymer solution; then adding a bacteriostatic agent; and fully mixing the mixture to obtain the liquid bandage. The method is simple, and the prepared liquid bandage is simple and convenient to use, not limited to wound sizes or positions, and the like. Compared with other liquid bandages in China, the prepared liquidbandage has advantages of rapid film forming, good film waterproofness, high water vapor permeability of the film, good watertightness, and capability of providing a wet and sterile environment for wounds, promoting better wound healing and shortening healing time.