14 results about "Surgical wound" patented technology

The application discloses a material for preventing tissue adhesion and hemostasis and a preparation method thereof, and relates to the technical field of medical biomaterials.The carboxymethyl cellulose, chitosan and vancomycin / ceftazidime are synergistically matched, so that the three functions of hemostasis, adhesion prevention and antibiosis are integrated;meanwhile, the water absorption and gelation of the carboxymethyl cellulose and the blood coagulation activation of the chitosan can jointly strengthen the hemostasis effect; the tissue barrier function of the chitosan and the gel isolation of the carboxymethyl cellulose can jointly improve the adhesion prevention performance; the broad-spectrum antibiosis of the vancomycin and the ceftazidime can respond to the infection risk in different surgical scenes; the material preparation process is simple, the dosage form can be adjusted according to different surgical scenes, the material has good biocompatibility and can be completely degraded, the problem that the existing medical materials have single function and are difficult to meet the needs of complex surgical wounds is solved, and the material has significant clinical application value.

The present application relates to the technical field of medical apparatus and discloses a surgical wound cleaning and draining device, which comprises a moving box and a cylinder. A universal flow guide is installed on the cylinder, and a sponge part is detachably connected to the bottom of the universal flow guide and located in the cylinder. A draining cover is detachably connected to the bottom of the cylinder. The moving box is divided into a liquid supply cavity and a waste liquid cavity by a partition. A liquid supply part and a suction part are installed on the front side of the partition. The liquid supply part is in communication with the liquid supply cavity, and the suction part is in communication with the waste liquid cavity. The liquid supply part is detachably connected to the universal flow guide for delivering cleaning liquid into the universal flow guide. The present application forms a closed cleaning environment by the draining cover, changes the traditional jet flushing into uniform moistening by the sponge part, cooperates with the suction part to recycle waste liquid in time, adjusts the angle of the flow guide pipe by the universal part, realizes flexible wiping, moistening and debridement, and the sponge part can be left as a dressing for integration of cleaning and dressing, reducing the risk of wound exposure and infection.

The present application relates to the medical field, and is used for treating gallstones, and is a gallstone dissolving agent and a double-needle tube circulating agent gallstone dissolving device. The gallstone dissolving agent is prepared by mixing a weak organic acid and an organic solvent according to a certain concentration ratio. The double-needle tube circulating agent gallstone dissolving device is connected by a medicine bottle, a dropping funnel, a medicine delivery tube, an inner needle tube, a rubber cap, a reversing tee, an outer needle tube, and a drainage tube according to a specified position and sequence. The device has the beneficial effects that after the gallstone dissolving agent is safely dropped into the gallbladder, the gallstone is dissolved by a chemical method and is circulated and removed from the body, the gallstone is completely removed without any residual fragments, the surgical wound is not greater than 1.8 mm, the gallbladder is slightly damaged, and the body recovers quickly. The device is a new breakthrough in gallbladder-preserving and stone-removing surgery.

This invention belongs to the field of surgical wound repair technology, and provides a multifunctional composite hydrogel, its preparation method, and its applications. The invention involves mixing fibrinogen, mussel byssal protein, calcium chloride, methacrylated dextran (Dextran-MA), thrombin, dithiothreitol, and a dispersing solvent. The resulting mixture is then gelled to obtain a multifunctional composite hydrogel. Thrombin specifically promotes the cross-linking of fibrinogen to form a biomolecular network; dithiothreitol efficiently mediates the formation of an organic macromolecular network through a Michael addition reaction of Dextran-MA; the introduction of Mfp5, utilizing its abundant catechol groups to form multiple coordination and covalent cross-links with organic / biomolecular macromolecules, significantly enhances the interfacial adhesion strength of the multifunctional composite hydrogel; simultaneously maintaining the biocompatibility, biodegradability, hemostatic properties, anti-inflammatory effects, and healing-promoting capabilities of the multifunctional composite hydrogel.

1. The name of the design product: suture device. 2. The use of the design product: the design product is used for suture of surgical wound. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model discloses a kind of baking lamp structures for surgical wound nursing, it is related to medical nursing technical field, including base, the inside of base is provided with insertion slot, the inside of insertion slot is inserted with insertion block, the inside of insertion block is provided with two corresponding limit slots, the inside of base and located the outside of insertion slot is provided with two corresponding third sliding slot, the beneficial effects of the utility model are as follows: by pulling two handles to drive fixed plate, second sliding slot and first sliding block to slide, then make multiple first telescopic spring compression, again two fixed plate is placed in fixed object outside loosen two handles, make multiple first telescopic spring rebound to push first sliding block, second sliding slot and fixed plate reset, make two fixed plate to fixed object clamping, then again insertion block is inserted into the inside of insertion slot, by the cooperation of third sliding block and limit slot, to fix base and mounting seat.

This utility model pertains to medical devices and discloses a craniocerebral care cap, comprising a cap body. The top of the cap body has a circular window coaxial with the cap body. Several connecting straps are arranged within the circular window, evenly distributed along the circumference of the window. One end of each connecting strap is fixedly connected to the cap body, and the other end has a first Velcro fastener. Each connecting strap has a fixing strap on its upper surface, fixedly connected to the middle of the connecting strap, and its two ends have second Velcro fasteners. Two binding straps are symmetrically arranged on both sides of the cap body, with their upper ends fixedly connected to the cap body and their lower ends having third Velcro fasteners. This design allows for the restraint and fixation of various tubes after they are led out from the surgical wound, reducing secondary trauma caused by external traction.

The application discloses an application of a lysine-porphyrin conjugate LD4 in preparation of a photodynamic medicine for preventing or treating tissue adhesion, and belongs to the technical field of medical anti-adhesion medicines. The medicine is administered by local smearing or spraying on a surgical wound surface, and single photodynamic treatment is carried out under the condition of a wavelength of 650-660 nm, a power density of 20-50 mW / cm2 and a light irradiation dose of 10-60 J / cm2, so that active oxygen is generated, and the anti-adhesion effect is achieved by inhibiting the activation of fibroblasts into myofibroblasts, reducing the excessive synthesis and deposition of type I collagen and other mechanisms. Experiment proves that the application has a significant prevention effect on various postoperative tissue adhesions such as abdominal wall adhesion, intestinal adhesion and tendon adhesion, the adhesion score is reduced by more than 70%, the operation is simple, the safety is high, there is no obvious toxic and side effects, and the application has a wide clinical application prospect.

This invention provides a surgical incision protector for thoracoscopic surgery, comprising: a fixing ring, a clamping mechanism, a fixing component, a driving element, a diaphragm, and a cover ring. By inserting the diaphragm into the surgical incision, the fixing ring is positioned over the incision, and two sets of clamping mechanisms contact the skin on both sides of the incision ends. The fixing component contacts the skin surrounding the incision. The clamping mechanism is then driven to clamp both ends of the incision. During this process, the clamping mechanism, through the driving element, drives the fixing component to adhere to the skin around the incision, thereby securing the fixing ring to the incision. This improves the stability of the device on the incision, preventing it from detaching during surgery. Furthermore, by clamping both ends of the incision, it prevents the skin around the incision from being pulled during surgery, thus avoiding enlargement of the surgical wound and preventing further enlargement of the patient's surgical wound.

This invention discloses a hemostatic ointment and its preparation method, belonging to the field of biomedical materials technology. The ointment is formed by ultraviolet polymerization of chitosan, polyethyleneimine, acrylic acid, AA-NHS, and the photoinitiator α-ketoglutarate to form a hydrogel, which is then freeze-dried, ground into powder, and mixed with medical-grade silicone oil. This invention achieves rapid hemostasis and wound sealing by introducing AA-NHS to enhance interfacial adhesion, combined with the protective and drainage properties of silicone oil. The ointment exhibits excellent wet tissue adhesion, rapid hemostasis, good biocompatibility, and biodegradability, making it suitable for various clinical scenarios such as surgical wounds and traumatic bleeding, and possessing significant clinical application value.

This utility model discloses a surgical wound drainage and medication application device, belonging to the field of medical device technology. The device includes a disinfectant patch, and further includes: an adhesive layer disposed at the bottom of the disinfectant patch, with release paper at the bottom of the adhesive layer; binding straps fixed to both sides of the disinfectant patch; a through hole at the top of the disinfectant patch; and a U-shaped plate, a Velcro strap, and a Velcro hook fixedly connected to the top of the disinfectant patch. This utility model, through the cooperation of the U-shaped plate, Velcro strap, Velcro hook, and fixing mechanism, can fix the drainage tube twice. This double-fixation method ensures that even if one set of fixation falls off, the drainage tube can still be secured, reducing the risk of displacement or detachment of the drainage tube due to patient movement or changes in body position, further improving the stability of the drainage and medication application.

This utility model belongs to the field of medical device technology and discloses a tunneling knife for cardiothoracic surgery. It includes a knife body and blade tips and a handle respectively disposed at both ends of the knife body, with the blade tips being conical or bullet-shaped. This utility model has a simple structure, is easy to operate, can precisely control the size and shape of the incision, and results in a small surgical wound, making it highly practical. This utility model also includes a tunnel tube sleeved on the knife body. The tunnel tube sleeved on the knife body allows the tunnel tube to be inserted into the puncture tunnel during the puncture process. After the puncture is completed, there is no need to insert the tunnel tube separately after the puncture, which greatly improves surgical efficiency.

The application discloses a multifunctional wound dressing and a preparation method and application thereof. The multifunctional wound dressing comprises a first fiber layer, a second fiber layer and a third fiber layer which are sequentially stacked, and the porosity and fiber diameter of each layer satisfy the following relationship: the first fiber layer < the second fiber layer < the third fiber layer. The first fiber layer comprises chitosan, gelatin and modified nano-hydroxyapatite. The second fiber layer comprises a first high polymer material, temperature-sensitive phase change nano-microcapsules, nano-silver, radiation refrigeration particles and an emulsifier. The third fiber layer comprises a second high polymer material and hydrophobically modified nanocellulose. The multifunctional wound dressing is prepared by using a multi-nozzle electrostatic spinning device for partitioned temperature and humidity control. Under the synergistic effect of the above-mentioned material selection, structure design and process optimization, the multifunctional wound dressing can realize rapid hemostasis, bidirectional temperature control and protection, and has a good application prospect in wound repair of burn wounds, surgical wounds and the like.

This invention relates to the field of surgical wound treatment materials and related instruments, and discloses an injectable hydrogel and injection method for wounds after tophi removal surgery, comprising a thermosensitive hydrogel matrix, a uric acid-lowering active ingredient, and an anti-inflammatory active ingredient; the thermosensitive hydrogel matrix is ​​selected from one or more of polylactic acid-polyethylene glycol-polylactic acid block copolymer, polylactic acid-glycolic acid copolymer-polyethylene glycol-polylactic acid-glycolic acid copolymer block copolymer, and poloxamer 407; the mass percentage concentration of the thermosensitive hydrogel matrix in the injectable hydrogel for wounds after tophi removal surgery is 15%-30%. Compared with existing oral or intravenous systemic drug administration regimens, the local sustained-release drug administration method of this invention avoids systemic drug side effects and improves the local drug utilization efficiency of the surgical cavity.