30 results about "Secondary Trauma" patented technology

The invention discloses a hollow tubular multi-warhead nano tumor heat therapy instrument, which comprises an injection inner cavity, one end of which is provided with a T-shaped plug, wherein the outer side of the other end of the injection inner cavity is provided with an inner cavity convex edge; a coaxial injection outer cavity is outside the injection inner cavity; the inside diameter of theinjection outer cavity is equal to or slightly greater than the sum of the outside diameter of the injection inner cavity and the height of the inner cavity convex edge; the inner side, close to one end of the T-shaped plug, of the injection outer cavity is provided with an outer cavity convex edge; the height of the outer cavity convex edge is equal to or slightly smaller than the height of the inner cavity convex edge; the other end of the injection outer cavity is provided with a closed connecting plate; after a cavity probe passes through the connecting plate, the probe tail is positionedin the injection outer cavity, and the probe body of the cavity probe is positioned in a probe outer tube; one end of the probe outer tube is a cylindrical tube body, positioned outside the injectionouter cavity and coaxial with the injection outer cavity; and the other end of the probe outer tube is a conical tube body with an open conical end. The invention has the advantage that: a plurality of injection needles spread to form an umbrella shape and encircle the tumor after penetrating the tumor, so that secondary trauma caused by interventional therapy is avoided.

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 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 provides a soluble anti-inflammatory, antibacterial and hemostatic gauze and a processing method thereof. The gauze uses amino acids to condense sulfonamide drugs on soluble fibers. The processing method of soluble anti-inflammatory, antibacterial and hemostatic gauze comprises the following sequential steps: (1) soaking the degreased gauze in a chloroacetic acid solution at normal temperature; (2) reacting the gauze processed in step (1) with amino acid; Step (2) soaking the treated gauze in NaOH saturated solution for etherification reaction; (4) adding hydrochloric acid to the treated gauze in step (3) in ethanol aqueous solution to adjust the pH to 5.4-7.6; (5) washing the gauze No residue on the surface; (6) the sulfonamides are reacted with the gauze treated in step (5). The gauze does not cause secondary trauma to the wound, the drug is released evenly and continuously, the drug effect lasts for a long time, and can provide nutrients for the wound, so that the wound heals quickly.

The invention belongs to the technical field of biological kit preparation, and relates to a preparation method of a concentrated growth factor kit derived from umbilical cord blood. After the umbilical cord blood is collected, it is cryopreserved and transported by adding a cryoprotectant, after rewarming, it is centrifuged at a differential speed, and the functional laminated film is obtained. The invention perfects and fills up the gap in the field of transportation and storage in the field of blood separation, and is a technology to achieve the purpose of production and preparation by using a kit. The technology of the present invention realizes large-scale preparation and large-scale storage through dry and freeze-preservation technology, reduces the repeated collection of clinical patients in multiple treatment stages, and effectively avoids the injury and psychological pressure brought by secondary trauma to users.

The invention relates to a minimally-invasive drilling and positioning tool for treating neural canal expansion. The minimally-invasive drilling and positioning tool comprises a drill rod, a sleeve rod in sliding connection with the drill rod in a sleeved mode, a positioning screw sleeve in threaded connection with the sleeve rod in a sleeved mode and a fixing sleeve matched with the positioning screw sleeve. the drill rod is provided with a through hole along the axial direction, a drill head of the drill rod extends out of the sleeve rod, the length of the sleeve rod is larger than those of the positioning screw sleeve and the fixing sleeve, and the sleeve rod extends out of side walls of the positioning screw sleeve and the fixing sleeve to be provided with an opening. The tool is applied to new minimally-invasive dilatation of neural canal stenosis and used for cutting off, prolonging and further fixing a pedicle of a vertebral arch. A hole with the diameter of about 5mm is drilled at the patient position by applying the tool, bones are effectively isolated in drilling so that secondary trauma of human body soft tissues is avoided, and the sleeve rod, the positioning screw sleeve and the fixing sleeve are reserved and used for being effectively matched with follow-up tools in work. The wound surface of the patient is small, and minimal invasive surgery is achieved. A convalescent stage of the patient after surgery is shortened greatly, and the surgery cost is low.

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.