30 results about "Secondary Trauma" patented technology

The invention discloses postoperation anti-adhesion hydrogel and a preparing method thereof. The hydrogel is prepared from sodium alginate powder, chitosan powder, acrylamide monomers, N,N'-methylene bisacrylamide, calcium sulfate, ammonium persulfate and N,N,N',N'-tetramethylethylenediamine. The preparing method of the high-strength high-tenacity chitosan and sodium alginate compound hydrogel is easy to operate, parameters are controllable, the materials are easy to obtain, and the solvent is nontoxic or low in toxicity and safe to treat and use; the method integrates advantages of the two natural biological materials, and the requirement for postoperation adhesion prevention of patients and the requirement for nursing care and treatment of medical workers can be met well. The hydrogel is soft, can be attached to the skin easily, has good flexibility and can effectively prevent wound surface adhesion and be degraded and absorbed, secondary trauma is avoided, and the hydrogel is expected to become a novel postoperation anti-adhesion material.

The invention relates to a pneumoperitoneum-free peritoneoscope suspending type abdominal wall puncture device, and overcomes the defect that secondary trauma occurs easily to patients by using a kirschner pin to puncture into abdominal walls to suspend the abdominal walls. The puncture device comprises a sleeve and a plurality of supporting arms arranged on the sleeve in a central radial shape, wherein a deformation portion is connected to the end portion of the sleeve and connected with the supporting arms; and one ends of pull ropes are fixed on the end portion of the supporting arms, lugs with rope holes are arranged on the sleeve away from the deformation portion, and the other ends of the pull ropes penetrate through the rope holes in the lugs to be fixed on the outer portion of the abdominal wall. A supporting surface is arranged after the supporting arm is opened, and a barrel-shaped space is formed after the supporting arm is suspended, so that enough surgical fields are provided during the surgery; and the supporting arm of the puncture device is inserted from a cut of the abdominal wall and is opened gradually, so that the kirschner pin is not needed to perform puncture and suspension, the secondary trauma is prevented, and the puncture device is helpful for alleviating traumatic pains of patients.

The invention provides a biological composite air-permeable dressing and a preparation method thereof. The biological composite air-permeable dressing consists of the following components in percentage by weight: 0.1-2% of natural macromolecule polysaccharides, 5-15% of a moisturizing agent, 0.012-0.15% of a cross-linking agent, 0.01-0.2% of an antioxidant, 0.01-1% of an acid-base adjusting agent,0.01-20% of a medicine carrying effective component and the balance of water, wherein the pH value of the dressing is within 6.5-7.2. By adopting the biological composite air-permeable dressing provided by the invention, antibacterial isolation protection can be formed for a wound surface, a wet repairing nutrition environment can be created for the wound surface, pain irritation and secondary traumas caused by medicine change peeling can be reduced, functions of cold compress and trauma cooling can be achieved, skin has normal physiological metabolism, hydrops oozing out from the wound surface can be cleaned and absorbed, stable drug carrying and release can be achieved, the trauma healing speed can be increased, the treatment time can be shortened, meanwhile, the dressing has no exclusiveness and is high in biocompatibility and free of anaphylaxis, and the dressing is a transparent membrane material, so that a medical operator can visibly and accurately observe the wound surface healing situation of a patient.

The invention relates to a sitting, lying and transporting cart for a patient, which belongs to the technical field of medical instruments. When being used for trauma patient in the transporting process, the prior stretcher with the design defect can not be suitable for the patient transportation on various roads and causes the patient to feel uncomfortable or be afflicted with new secondary trauma. Both side surfaces of a backrest canvas stretcher (19) and a lower-body canvas stretcher (20) are respectively and fixedly provided with a limiting belt (16) and a belt buckle (17), four embedded blocks (10) are respectively fixed on the backrest canvas stretcher (19) and the lower-body canvas stretcher (20), the backrest canvas stretcher (19) and the lower-body canvas stretcher (20) are hinged by hinges (24), and both side surfaces of the lower-body canvas stretcher (20) are respectively provided with a seat thread hole (5) and a stretcher thread hole (6). The sitting, lying and transporting cart has the advantages of novelty, creativity and practicability.

The invention belongs to the technical field of medicine and health and particularly relates to a preparing method of a silver-containing anti-bacterial dressing. According to the method, degreased cotton gauze serves as a base dressing to be improved, at first, the degreased cotton gauze is subjected to carboxymethylation modification and endowed with a high hygroscopic property, then by means of the in-situ reduction effect, nanometer silver particles directly cover the modified degreased cotton gauze, the nanometer silver particles are combined with the degreased cotton gauze closely and do not fall off, and the obtained silver-containing anti-bacterial dressing has a high anti-bacterial property and a high hygroscopic property, does not stick to wounds and avoids secondary trauma and infection of the wounds, so that healing of the wounds is accelerated.

The invention provides a preparation method of a low-adhesion wound dressing. The preparation method includes the steps of firstly, introducing 2-bromoisobutyl acyl bromide serving as a modifier to the surface of a cellulose material by the aid of a surface-initiated electron transfer activated regenerated catalyst atom transfer radical polymerization technique to prepare a cellulose-based macro-initiator; secondly, controllably building a gel-like molecular brush structure at the initiation locus of the surface of the cellulose material by N-isopropylacrylamide in a nitrogen environment, andperforming washing and drying to prepare the low-adhesion wound dressing. The prepared wound dressing has the advantages that gel molecules and the cellulose material are firmly combined in a covalentbond form to prepare the wound dressing, the wound dressing has excellent low-adhesion performance, secondary trauma caused by the adhesion between new granulation tissue and a traditional gauze dressing is avoided, a new idea is provided for the preparation of low-adhesion wound dressing, and the low-adhesion wound dressing is promising application prospect and market prospect.

The invention provides a preparation method of a medical dressing, which includes preparation of secreted PLGA sustained-release microspheres, preparation of a hydrogel, preparation of an electrospunmembrane, and preparation of a stem cell secretion medical dressing. In the invention, a combination of sub-totipotent stem cell secretin, PLGA sustained-release microspheres and hyaluronic acid hydrogel is used, and the electrospun membrane is used as a carrier to prepare the medical dressing, the sub-totipotent stem cell secretion is rich in various active factors, and has a good repair effect on wounds; Experiments show that the medical dressing prepared by the invention has a good healing effect on both acute and chronic wounds. The medical dressing can adhere to the wound well, and the sub-totipotent stem cell secretin in the PLGA sustained-release microspheres is slowly released, which greatly improves the utilization rate of the secretion and the durability, the PLGA slow-release microspheres contain a larger amount of subtotipotent stem cell secretions, which reduces the number of dressing changes, avoids secondary trauma during the dressing change, and facilitates wound repair.

The invention discloses a minimally invasive fluid suction scalpel, and relates to the technical field of surgery apparatuses. The minimally invasive fluid suction scalpel comprises a tool bit, a connecting rod and an operation rod. The two ends of the connecting rod are connected with the tool bit and one end of the operation rod respectively. The connecting rod and the operation rod are each ofa hollow structure and are used for sucking fluid. The tool bit comprises a main blade and a fluid suction hole. The tool bit is of a flat prism shape. The main blade is arranged on the side edge of the tool bit. The fluid suction hole is formed in the side face of the tool bit and communicated with the connecting rod to conduct fluid suction. The other end of the operation rod is connected with asucker. The defect that a scalpel and a fluid suction device used in the prior art can cause secondary traumas to a surgical spot is avoided, and the problem that an existing fluid suction scalpel can easily cause large wounds to the surgical spot and actually cannot effectively suck fluid in the surgery process is solved. The scalpel cannot cause large wounds to the surgical spot in the surgeryprocess and can effectively complete the fluid suction function when surgery is conducted on the surgical spot through the edge.

The invention discloses a bed for B-ultrasound examination, which comprises a bed board for supporting a patient and an underframe for supporting the bed board, a telescopic device is hinged between the bed board and the base board, and the bed board is supported by a The first board for the patient's head, the second board for supporting the patient's waist, and the third board for supporting the patient's legs are hinged; the lower surface of the third board is connected with a lifting device that is slidably installed on the chassis. By adding a lifting device, the present invention can lower the height of the bed board close to the legs, and change the straight bed board into a shape similar to a sofa, so that patients can easily sit on the head of the bed without bending over or climbing. By resetting the properties of the bed board, the patient can easily lie flat, avoiding the secondary injury problem that may occur due to the examination of the patient with trauma.

The invention discloses a hook-shaped cable penetrating apparatus in the field of medical apparatus and instruments. The hook-shaped cable penetrating apparatus comprises a handle. A connecting straight rod is arranged on the handle, a bent head capable of being wound through a backbone is arranged at the front end of the connecting straight rod, a cable penetrating pore passage is arranged in the bent head and is perforated through two ends of the bent head to form two ports at the two ends of the bent head, the pore diameter of the cable penetrating pore passage is larger than the diameter of a cable and is smaller than the width of an obstruction head at the tail end of the cable, a notch which is perforated through the integral cable penetrating pore passage is arranged on the bent head, and the integral cable penetrating pore passage can be of an open structure with the notch on a side surface, so that the cable in the cable penetrating pore passage can be directly pulled out of the cable penetrating pore passage via the notch without being separated from the bent head; the notch is positioned on a concave surface of the inner side of the bent head. The hook-shaped cable penetrating apparatus has the advantages that users can conveniently take out the cable penetrating apparatus without cutting off the obstruction head after cable penetrating, secondary trauma on tissues around the backbone can be prevented, and the like.

The invention discloses a traction rehabilitation device for orthopedic nursing, and relates to the technical field of the orthopedics department. The traction rehabilitation device comprises a supporting bottom plate. Protection anti-vibration devices are fixedly connected to the symmetrical positions, on the two sides of a lifting device, of the top of the supporting bottom plate correspondingly. Thigh fixing groove blocks are fixedly connected to the ends, away from a protection supporting middle plate, of supporting frames. A first connecting frame is fixedly connected to the side, away from the protection supporting middle plate, of a first adjusting device. First connecting frames are fixedly connected to the side, away from the supporting middle plate, of a first adjusting device. Abedside plate is fixedly connected to the side, away from the first adjusting device, of the first connecting frames. A second connecting frame is fixedly connected to the side, away from the protection supporting middle plate, of a second adjusting device. A rehabilitation device body is fixedly connected to the side, away from the second adjusting device, of the second connecting frame. The traction rehabilitation device is convenient in traction and convenient to move, the traction strength can be effectively controlled, unbearable pain generated in the patient treatment process is avoided, the traction rehabilitation device is provided with rehabilitation equipment, beds do not need to be replaced, secondary trauma is effectively avoided, and recovery of patients is facilitated.

The invention belongs to the technical field of medical instruments, and particularly relates to an anti-secondary trauma endoscopic thyroid special hook. The hook comprises a hand lever and a hook head. The hook head comprises a first straight rod, a second straight rod and a third straight rod. A movable gap facilitating puncture action of the third straight rod is arranged between the third straight rod and the first straight rod. The first straight rod, the second straight rod and the third straight rod are matched to form the triangular supporting surface, and the triangular supporting surface and the hand lever are arranged in the intersection mode. The straight rods are hollow tubes with the tube cavities connected in sequence, the tube cavities of the straight rods extend up alonga hand lever body and communicated with negative suction holes formed in the hand lever. The hook further includes a cutting nail, and the cutting edge of the head of the cutting nail stretches out ofthe top end of the third straight rod. By means of the hook, secondary trauma can be effectively avoided during an operation while the thyroid lesion is fully exposed, and the special hook has the advantages of large endoscopic scope, good flexibility and convenient visual field.

The invention discloses a multi-mode omnidirectional noninvasive gastric lavage machine system. A liquid inlet end of a liquid inlet electromagnetic pump is connected with a gastric lavage liquid tankthrough a pipe, a liquid outlet end of the liquid inlet electromagnetic pump is connected with one end of a light inlet two-position three-way electromagnetic valve, the other end of the light inlettwo-position three-way electromagnetic valve is connected with a liquid inlet of an omnidirectional gastric lavage pipe through a pipe, a liquid outlet of the omnidirectional gastric lavage pipe is connected with one end of a liquid outlet two-position three-way electromagnetic valve, the other end of the liquid outlet two-position three-way electromagnetic valve is connected with a liquid inlet end of a liquid outlet electromagnetic pump, and a liquid outlet end of the liquid outlet electromagnetic pump is connected with a waste liquid tank through a pipe. The multi-mode omnidirectional noninvasive gastric lavage machine system has the advantages that pressure of the gastric lavage liquid at an end of the gastric lavage pipe can be monitored, secondary trauma caused to the stomach due tooverlarge pressure of the gastric lavage liquid can be avoided, and noninvasive gastric lavage can be realized; various sensors are arranged on liquid inlet and outlet paths to detect various parameters in the gastric lavage process in real time, and accordingly real-time control is realized; a liquid inlet work mode, a liquid outlet work mode, a liquid inlet-outlet circulating work mode and a continuous liquid inlet and liquid outlet work mode can be realized, and gastric lavage is more thorough and safer.

The invention discloses a diabetes ulcer repair material modified by extracellular matrixes. The diabetes ulcer repair material is a small intestine submucosa membrane modified by the extracellular matrixes of human urine-derived stem cells. The diabetes ulcer repair material has the advantages that the diabetes ulcer repair material is excellent in biocompatibility and bioactivity, the immunogenicity can be removed to the greatest extent, and the durations of inflammatory periods can be shortened; the extracellular matrixes and growth factors in the matrixes can be retained, diabetes skin ulcer wound healing can be promoted, the cells and materials for the diabetes ulcer repair material can come from extensive sources, and secondary injury on patients can be prevented in preparation procedures; the shortcomings of limited cell sources for existing diabetes ulcer repair materials, difficulty in survival, complicated material preparation procedures, secondary trauma, high immunogenicityand susceptibility to infection of wound can be overcome by the aid of the diabetes ulcer repair material, and accordingly the diabetes ulcer repair material has an excellent clinical application prospect.

The invention discloses a finger fracture fixation rack. The finger fracture fixation rack comprises a protective casing, a support plate and an inflatable cushion, wherein the protective casing is acylindrical hard casing, the support plate is a hard plate and fixedly connected at one end of the protective casing, limit bulges are arranged at an end part of the support plate, the inflatable cushion is arranged in the protective casing, and an air valve is arranged at one end of the inflatable cushion and connected with an inflatable ball through an inflation pipe. The finger fracture fixation rack of the invention can firmly fix fractured fingers and freely adjust pressure on fingers, is breathable and comfortable, is simple to use and causes no secondary trauma.

The invention provides a motion control system of a minimally invasive surgery robot. The system is mainly composed of a PC module, a Bluetooth receiving and transmitting module, a single chip microcomputer module, a CAN bus module, a motion controller module, an optoelectronic isolation module and a joint motor driving chip module. The motion control system is good in real-time performance high in precision and low in economic cost, cost can be reduced, and besides a doctor can easily perform a surgery more precisely, and high reliability of the surgery is guaranteed. Because a slave hand of the minimally invasive robot is generally composed of multiple joints, if motion of all the joints can not be coordinated effectively, major secondary trauma can be generated for a patient, and even life safety of the patient is threatened. Therefore, meaning of research on the motion control system of the minimally invasive surgery robot is very significant.