30results about How to "Affect healing" patented technology

The invention discloses a grape grafting and cultivating method. The method comprises the steps of (1) selection of stocks, (2) grafting method, (3) binding and (4) grafting management after grafting planting, in the step of the selection of stocks, resistant North America species and its cohybridization generation or local wild grape vines are selected as stocks; the grafting method is divided into open field local grafting and indoor grafting; in the step of binding, soybean cake powder, microelement (iron, sulfur, copper, manganese and selenium) and water are mixed into thick mud, the mixture is smeared on gauze or cotton cloths, and the gauze or the cotton cloths containing the thick nutrient mud is bound on joints of stocks and scions. According to the grape grafting and cultivating method, the method solves the problems that conventional hard branch top grafting influences healing of connectors due to wounds, the growing period after surviving is short, growth is weak, and the flower forming and fruiting rate of a second year is low, the survival rate of grape grafting is improved and reaches 90%, fruit forming amount is large, fruits have abundant nutrient, fresh color and good taste.

The invention provides a dynamic locking plate for treating a fracture of a neck of a femur. The dynamic locking plate comprises a tuberosity supporting plate and three locking screw holes, wherein the inner surface of the tuberosity supporting plate is bent to be matched with the lower part of a greater trochanter of the femur in shape; the positions of the three locking screw holes including a first locking screw hole, a second locking screw hole and a third locking screw hole in the tuberosity supporting plate are based on a locating point A at the middle of the tuberosity supporting plate, and distributed around the locating point A; the first locking screw hole, the second locking screw hole and the third locking screw hole are distributed to form a triangle in the tuberosity supporting plate; axes of the three locking screw holes are parallel; based on a vertical line AO of the tuberosity supporting plate where the locating point A is positioned, the axial lines of the three locking screw holes are inclined upwards and form longitudinal included angles theta with the vertical line AO, which are equal to 15-35 degrees. The locating point A is located within the range that the geometric center of the tuberosity supporting plate is taken as a center, and the diameter is 4 mm. The dynamic locking plate enables the broken end of a fractured bone to be subjected to micro-movement and compression, and adapts to dynamic characteristics of bone growth when improving the internal fixation stability of the neck of the femur, so as to be more beneficial to healing of the broken end of the fractured bone.

The invention relates to a method for increasing survival rate of grafting of a walnut tree. The method comprises the steps: cutting up a broken end of a tree trunk (1) as a rootstock into a V-shapedcut, splitting tip parts of the two ends of the V-shaped cut along a bark (1a), and separately splicing a scion (2); and cutting up lower parts of walnut tree branches as the scions into beveled edges, chipping off surface-layer withered barks from scions at the back of the cut in a manner of reserving bast layers (2a) of the scions, then, inserting tips of cut sections of the scions between splitbarks and wood of the rootstock in a manner that a fabric-exposed section (3) of 0.8cm to 1.2cm is reserved at the upper end of the cut of each scion, and finally, closely bundling and wrapping parts, located below fabric-exposed sections, of the scions and a spliced section of the rootstock with plastic tapes (4). According to the method, the survival rate of grafting of walnuts and the growth vigor of the scions are greatly increased, the operation is simple and practical, and the production efficiency is high.

A PH sensitive intelligent dressing comprises a PH sensor, a singlechip, algal sponge and a piezoelectric film; the PH sensor collects PH value information of the wounded surface and outputs a voltagesignal to the singlechip; the singlechip compares the voltage signal with the built-in voltage value and outputs the corresponding voltage value to the piezoelectric film; the piezoelectric film outputs a micro displacement or deformation through the inverse piezoelectric effect so as to drive the algae sponge to generate deformation. The alga sponge releases the corresponding medicine due to thedeformation so as to realize the intelligent control of the medicine release. Moreover, the algal sponge of the PH sensitive intelligent dressing adopts the biomass material with good biocompatibility, thereby being beneficial to avoiding stimulation, allergy and the like caused by the material that may influence wound healing. The PH sensitive intelligent dressing adopts a freeze-drying method to produce the aerogel, and the algal sponge with small aerogel density and large porosity is obtained by adjusting the proportion of each substance. The aerogel structure is more favorable for keepingthe microenvironment required by wound healing and improving the loading efficiency of algal sponge, and has the effects of ventilation and bacteria inhibition.

The invention discloses an assisted limb lifting and overturning device for brain surgery nursing. The assisted limb lifting and overturning device for brain surgery nursing comprises a bed body; a mounting frame driving box is arranged on one side of the bed body; a driving motor is arranged inside the mounting frame driving box; one side of the driving motor is rotatably connected with a lead screw through a rotating shaft; a lead screw pair ring sleeve is arranged outside the lead screw; the top end of the lead screw pair ring sleeve is fixedly connected with a supporting frame; the inner side of the supporting frame is rotatably connected with a rotatable cross rod through a rotating shaft; one end of the rotatable cross rod is connected with a telescopic rod; and the other end of therotatable cross rod is rotatably connected with a turning pulley through a rotating shaft. According to the assisted limb lifting and overturning device for brain surgery nursing, a pulling cable, a row teethed rod and a transmission gear are arranged, so that the problem that the limbs of a patient are difficultly driven to move by utilizing the pulling cable and a rotating rod simultaneously bythe assisted limb lifting and overturning device for brain surgery nursing to affect the using effect of the assisted limb lifting and overturning device for brain surgery nursing when the assisted limb lifting and overturning device for brain surgery nursing is used is avoided.

An embodiment of the present invention provides a screw for bone fixation, which belongs to the technical field of medical devices. The screw for bone fixation includes: a nut, and the nut includes: a nut body, on which A piercing hole is provided, and the piercing hole is a through hole, and the piercing hole can accommodate a fixing wire; the nail body, the nail body is connected and arranged at the lower end of the nut body; wherein, the piercing hole The hole has an arc-shaped channel through which the fixing wire and the piercing hole are in surface contact; the technical effect that the fixing wire does not break when fixing the screw is achieved.

The invention relates to a fixing bandage based on a liquid metal flexible composite material. The fixing bandage comprises liquid metal, a thin pipe network containing the liquid metal, and a medical fiber material for being compounded with the thin pipe network, wherein the flexible composite material can be made into different shapes according to demands; as a novel bandage, the fixing bandage can be used for binding and fixing the four limbs, the trunk, the head and the like of the human body; compared with the traditional fixing methods adopting gypsum, splints and the like, the fixing bandage has the advantages of simplicity in operation, portability and comfort in use, good breathability, reduction in infection, wide application range, recycling property and the like; the flexible composite material is stable in property and high in reliability, and the deficiency and defects of the traditional medical material are made up to a certain extent.

The invention provides a high-efficiency medical anti-clogging drainage device and its use method. The high-efficiency medical anti-clogging drainage device includes a drainage tube, a leaf-shaped filter, a negative pressure tube, a mixing tube, and a fixed trap; the side wall of the drainage tube is provided with a plurality of The first through hole; the inside of the drainage tube is provided with a blade-shaped filter screen; the blade-shaped filter screen is in the shape of a cone; the tapered portion of the blade-shaped filter screen and the inner wall of the drainage tube form a negative pressure tube connection port; the negative pressure tube connection port is provided with There are helical blades; the connection port of the negative pressure tube is connected to the negative pressure device; the first through hole is located under the blade-shaped filter; when the negative pressure device is working, the spiral blade rotates; the mixing tube is connected to the nozzle of the drainage tube; the mixing tube is used for Flushing liquid or gas is poured into the drainage tube; the negative pressure tube and the mixing tube are fixed inside the drainage tube through a fixed snare; the fixed snare is provided with a ventilation hole. With the high-efficiency medical anti-clogging drainage device provided by the invention, the drainage tube will not be blocked during use, and the polluted tissue fluid inside the body cavity can be drained cleanly.

The invention provides a biomedical wound dressing. The biomedical wound dressing comprises: a base layer, a water-absorbing layer, a drug layer, a receiving layer, and an adhesive layer. The drug layer is a hydrophilic film containing drugs. The water-absorbing layer is fixed on the base layer, the receiving layer is fixed on the water-absorbing layer, the drug layer is fixed on the receiving layer, the drug layer of the hydrophilic film can be dissolved in contact with the liquid flowing out of the wound, and the drug effect after melting In the wound, it can effectively play the role of anti-inflammation and sterilization, and the medicine in the dressing can be fully utilized, which can improve the healing effect of the wound.

A PH sensitive intelligent dressing comprises a PH sensor, a singlechip, algal sponge and a piezoelectric film; the PH sensor collects PH value information of the wounded surface and outputs a voltagesignal to the singlechip; the singlechip compares the voltage signal with the built-in voltage value and outputs the corresponding voltage value to the piezoelectric film; the piezoelectric film outputs a micro displacement or deformation through the inverse piezoelectric effect so as to drive the algae sponge to generate deformation. The alga sponge releases the corresponding medicine due to thedeformation so as to realize the intelligent control of the medicine release. Moreover, the algal sponge of the PH sensitive intelligent dressing adopts the biomass material with good biocompatibility, thereby being beneficial to avoiding stimulation, allergy and the like caused by the material that may influence wound healing. The PH sensitive intelligent dressing adopts a freeze-drying method to produce the aerogel, and the algal sponge with small aerogel density and large porosity is obtained by adjusting the proportion of each substance. The aerogel structure is more favorable for keepingthe microenvironment required by wound healing and improving the loading efficiency of algal sponge, and has the effects of ventilation and bacteria inhibition.

The invention mainly discloses a fully automatic orthopedic bone drilling, water injection and water pumping integrated device. Its technical proposal includes a bone drilling main body. The axial center of the section is provided with a water injection pipe, and the two ends of the surface of the water injection section are respectively provided with a water inlet and a water outlet connected with the water injection pipe; There is a cooling pipe spirally surrounding the cooling section, the water outlet end of the cooling pipe is connected to the water inlet; the inside of the main body of the drill bone is provided with a medicine storage chamber, and one end of the medicine storage chamber is connected with the first liquid inlet pipe, and the medicine storage chamber The other end is provided with a second liquid inlet pipe connected to the cooling pipe, and a third liquid inlet pipe is connected in parallel between the first liquid inlet pipe and the second liquid inlet pipe; the upper part of the sleeve pipe is provided with a pumping part. The invention has the characteristics of small size, convenient operation, improved efficiency and quality of bone drilling operation, reduced infection rate, and improved postoperative healing speed.