80 results about "Surgical wound" patented technology

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

The invention discloses a self-adaptive hydrogel coupling agent as well as a preparation method and application thereof, belongs to the field of medical instruments, and particularly relates to a preparation method of the self-adaptive hydrogel coupling agent. The preparation method comprises the following steps: dissolving a main monomer, a functional monomer, a molecular weight regulator and a reinforcing filler in sterilized deionized water under dark and sterile conditions, carrying out a free radical polymerization reaction under the action of a persulfate solution and tetramethylethylenediamine, and carrying out dialysis and sterilization treatment to obtain the self-adaptive hydrogel coupling agent. The self-adaptive hydrogel coupling agent prepared by the invention eliminates tissue deformation caused by probe pressurization, significantly improves the accuracy of measurement of the actual distance of a target by ultrasound in an operation, and meanwhile, the self-adaptive hydrogel coupling agent is good in biocompatibility, can be sterile, is convenient to operate, and is suitable for open or endoscopic surgical wounds.

The utility model relates to the technical field of medical instruments, and discloses a wound protection device for the cardiothoracic surgery department, which comprises a protection suite, a mounting insertion cylinder, a fitting pad, an abutting ring piece, a sterile cotton layer, a nursing cotton layer, a ventilation groove and a filter cotton layer. The attaching pad is attached and fixed to the skin, then the installation insertion cylinder is inserted and limited through the limiting clamping piece corresponding to the limiting groove, after the installation insertion cylinder and the protection sleeve are installed in a butt joint mode, the protection sleeve and the installation insertion cylinder can be fixed in a magnetic attraction mode through the magnetic attraction piece and the fixing magnetic ring, and after the installation insertion cylinder is inserted into the protection sleeve, the protection sleeve can be fixed through the fixing magnetic ring. The bottom of the nursing cotton layer can be attached to the wound of a patient for protection, antibacterial treatment is conducted through the disinfection cotton layer, when dressing change is conducted, the installation insertion cylinder is directly pulled out upwards, in this way, the protective sleeve and the installation insertion cylinder can be rapidly disassembled and assembled, use is convenient, redundant complex structural elements are reduced, and therefore the effects of reducing cost and improving practicability are achieved.

The invention provides a surgical operation wound drainage and administration device which comprises a sponge imbedding sheet, a plurality of drainage tubes and administration tubes which are distributed in a pairwise staggered mode are arranged in the sheet, and a plurality of drainage holes and administration holes are formed in the peripheries of the drainage tubes and the administration tubes respectively. A main pipe strip perpendicular to the drainage pipe and the dosing pipe is arranged on one side of the sponge imbedding piece, a drainage cavity and a dosing cavity are formed in the main pipe strip, and the drainage pipe and the dosing pipe are communicated with the drainage cavity and the dosing cavity respectively. And the main pipe strip is outwards connected with a liquid outlet pipe and a liquid inlet pipe which are respectively communicated with the drainage cavity and the dosing cavity. The device further comprises a drainage bag communicated with the liquid outlet pipe and a medicine storage tank communicated with the liquid inlet pipe. A piston piece is arranged in the medicine storage tank, high-elasticity compression sponge is arranged on the side, away from the liquid inlet pipe, of the piston piece and stores medicine liquid, air inlet micropores are formed in the end, close to the high-elasticity compression sponge, of the medicine storage tank, and a hole blocking piece is detachably connected to the outer side. According to the device, all-directional and efficient drainage and continuous and uniform drug administration can be achieved, wound impregnation is effectively avoided, and the postoperative wound nursing accuracy and the treatment effect are improved.

The invention discloses an ophthalmologic operation navigation positioning method, device and equipment and a storage medium, and the method can obtain detailed information of bone tissues and soft tissues at the same time after a CT image and an MR image are fused, can carry out the precise segmentation and planning of a registered image, and provides accurate navigation and guidance for an operation. After registration, under the guidance of navigation, a doctor can more accurately position a surgical site, damage to surrounding tissues is avoided, surgical wounds are reduced, surgical risks are reduced, and surgical efficiency is improved.

The invention discloses an anesthesiology department postoperative wake-up device convenient for position adjustment, and particularly relates to the technical field of medical apparatus and instruments, the anesthesiology department postoperative wake-up device comprises a wake-up seat for anesthesiology department postoperative wake-up, a wake-up assembly and a driving assembly; the awakening seat comprises a seat body and a supporting groove used for containing the anesthetized lower limbs of a patient. A supporting groove is formed in the top face of the base. The awakening assembly is arranged on the seat body; the awakening assembly comprises a movable groove, a movable block and a stimulation block; a movable groove is formed in the seat body; a plurality of movable blocks are movably arranged in the movable groove in a linear array through a driving assembly; a plurality of stimulation blocks are uniformly and fixedly arranged on the top surface of the movable block, and the end parts of the stimulation blocks penetrate through the movable groove and extend to the outside; the bottom surfaces of the movable blocks are V-shaped surfaces, and the motion trail formed by the plurality of movable blocks is wave-shaped; the anesthetic patient awakening device is reasonable in structural design, the awakening seat is placed between the lower limbs of an anesthetic patient and the transfer bed, an operation wound of the patient can be avoided, the position adjusting effect is achieved, and the anesthetic patient can be continuously stimulated.

A shower brassiere for protecting surgical wounds and wound dressings from water while the wearer showers includes a garment body which configured to be worn around a chest of the wearer. The garment body has a generally tubular shape with a top end and a bottom end which are open to an interior space of the garment body. The garment body also comprises a water impermeable material. Drawstrings are attached to the garment body which are operable to cinch the garment body against the wearer's body to seal an interior of the garment body from the surrounding atmosphere.

The invention relates to the technical field of hemostatic materials, in particular to composite hemostatic gel as well as a preparation method and application thereof. The composite hemostatic gel is prepared from the following components in percentage by mass: 0.5 to 3 percent of carboxymethyl chitosan, 0.5 to 5 percent of trehalose, 1 to 10 percent of glycerol, 0.1 to 2 percent of carbomer, 0.1 to 2 percent of recombinant blood coagulation factor III, 0.005 to 0.05 percent of benzalkonium chloride and the balance of Tris-HCl buffer solution. Based on the synergistic effect of a natural high polymer material carboxymethyl chitosan and a bioactive component recombinant blood coagulation factor III, the gel constructs a'physical adsorption-blood coagulation activation 'dual hemostasis pathway, realizes a rapid and multi-mechanism hemostasis function, has antibacterial and repair promoting characteristics, can be widely applied to various bleeding scenes such as cutting wounds and surgical wounds, and has wide application prospects. The wound healing is effectively promoted.

1. The name of this design product: Anorectal surgery wound dressing fixation device. 2. Purpose of this design product: Used for fixing dressings for anorectal surgical wounds. 3. The key point of the design of this product lies in its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model provides a guide mechanism of an electric endoscopic cutting anastomat, which belongs to the technical field of medical instruments and comprises a guide rod, a guide rod and a guide rod, an anastomat; the electric telescopic rod is fixedly connected to one side end of the anastomat; the motor is fixedly connected to the circumferential inner wall of the electric telescopic rod; the anastomat is accurately positioned to a surgical site, and the dial gauge on the electric telescopic rod is used for providing visual length reference, so that a doctor can very accurately adjust the positions of the nail bin and the cutting blade to ensure that the nail bin and the cutting blade are accurately aligned with target tissues, personal errors are reduced through the accurate control, the success rate of surgery is improved, and after the position is confirmed to be correct, the surgical efficiency is improved. A doctor presses down the button, the motor is started, the motor drives the clamping nail base to rotate and complete the cutting action, then suturing treatment is conducted immediately, it is ensured that a surgical wound is closed rapidly, the surgical accuracy is improved, and misoperation is effectively prevented.

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 utility model relates to the technical field of surgical instruments, in particular to a costal cartilage cutting device which comprises a cutting part and a handheld part, the cutting part is arranged at one end of the handheld part and comprises a mounting seat and a cutting knife, the cutting knife is detachably connected to the mounting seat and comprises a U-shaped blade and a knife handle fixedly arranged at the top end of the blade, and the cutting knife is detachably connected to the mounting seat. The cutter handle is detachably connected with the mounting base, the blade comprises a cutting edge end and a cutter back end, a lifting plate is arranged on the side, close to the cutting edge end, of the mounting base, and the adjusting assembly is used for driving the lifting plate to conduct lifting adjustment. Through the arrangement of the adjusting assembly and the lifting plate, the lifting plate can be adjusted to shield and bear the cutting edge end, and the effective use thickness of the cutting edge end can be achieved, so that the blade can be conveniently adjusted to cut costal cartilages with different thicknesses, the costal cartilages can be selectively cut according to the required costal cartilages, waste caused by excessive cutting of the costal cartilages is avoided, and the costal cartilages are convenient to use. The situation that an operation wound is relatively large due to excessive cutting can be avoided, and the degree of injury to a human body is reduced.

The present invention belongs to the field of biomedical materials technology, and specifically relates to a probiotic hydrogel and its preparation method and application. The probiotic hydrogel comprises a hydrogel substrate formed by oxidized methylmalonamide hyaluronic acid; and the hydrogel substrate is cross-linked with probiotics and extracellular polysaccharides secreted by the probiotics, wherein the probiotics are Lactobacillus acidophilus. L. acidipiscis 10851 , the extracellular polysaccharide is L. acidipiscis 10851 The probiotic hydrogel of the present invention is suitable for various traumas and surgical wounds, and can stop bleeding, reduce wound infection and promote wound healing.

The invention discloses a surgical wound debridement and suturing protection device, relates to the technical field of surgical suturing, and solves the problems that in the prior art, a working table is fixed in a cover body, and the direction of entering the interior of the device is fixed; inconvenience is brought to some patients difficult to move and auxiliary movement of medical staff. The slidable protection table is arranged on the surface of the workbench for limiting the position of the protection cover, the protection table serves as the position where a patient is located, when the patient is moved into the protection device for wound debridement and suture, the protection table can be pulled out of the protection cover, the protection table is in the unshielded position, and the patient is not shielded when moving; and sliding of the protection table in the protection cover is achieved through rotation of a screw rod, the rotating direction of the screw rod can be changed through position changes of a driving gear on the surface of a driving rod, then the sliding direction of the protection table on the surface of the workbench can be conveniently changed, and the device is convenient to use.

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.

Methods and membranes are disclosed for healing one’s body wounds, such as surgical wounds that may result from Mohs micrographic surgery. One or more membranes comprising membrane materials may be adhered to skin proximal to the body wound. The membrane(s) may be placed such that any reinforcing fibers of the membrane material(s) are generally parallel to a longitudinal axis of the body wound. The body wound may then be closed with sutures which may burrow into and out of the membrane material(s). There may be a connector which can increase and maintain tension between the membrane materials. After a period of time, such as at least 14 days, the sutures can be removed but the membrane(s) may remain on the skin. After another period of time has passed, the body wound may heal such that only a faint scar remains.

The invention relates to a bacteriostatic repair medical gel containing glycosylglycerol and a preparation method thereof, and belongs to the technical field of medical dressings. The gel is prepared by taking glycosylglycerol as a main active component and cooperating with chitosan, collagen, a silver ion antibacterial agent and other components through a specific process. The gel has triple synergistic effects: glycosylglycerol enhances the skin barrier function and provides lasting moisture retention by activating aquaporin; chitosan and silver ions provide broad-spectrum antibacterial activity; and collagen and glucan promote tissue repair and cell proliferation. Experiments show that the antibacterial rate of the gel on common pathogenic bacteria such as staphylococcus aureus and escherichia coli exceeds 99.9%, meanwhile, the wound healing speed can be increased by 40% or above, and the gel is good in biocompatibility and free of skin irritation. The gel can be used for repairing and nursing various skin injuries such as burn wounds, chronic ulcers and surgical wounds.

The invention relates to the technical field of neural electrodes, in particular to a magnetic drive gel type ECOG electrode based on a skull patch and a preparation and packaging method thereof, and the electrode comprises a skull patch unit, a flexible sensing circuit and a gel type sensing unit; a magnetic nano material is coupled in the gel type sensing unit, and the gel type sensing unit is driven by an external magnet to move to a target area on the surface of the cerebral cortex for signal acquisition; the flexible sensing circuit comprises an insulating layer and a sensing layer which are coaxially coupled; the two ends of the flexible sensing circuit are embedded into the skull patch unit and the gel type sensing unit respectively, and bonding sites and recording sites are exposed on the surfaces of the skull patch unit and the gel type sensing unit respectively. The manufacturing problems that a traditional preparation technology is incompatible with a gel material with high water content and the preparation and packaging process is complex are solved, and the problems that when an ECOG electrode is used for large-range multi-brain-region monitoring, the surgical wound surface is large, inflammatory response is likely to be induced, and the postoperative rehabilitation effect is poor are solved.

The application discloses a preparation method and application of an anti-adhesion nano composite drug delivery system, relates to the technical field of adhesives, and discloses the following technical scheme: polyacrylamide and aldehyde functionalized starch with a preset mass ratio are taken, different amounts of zeolite imidazolate framework materials are added after mixing, and then the mixture after mixing is ground and sieved to obtain the anti-adhesion nano composite drug delivery system. The application can be used as a peritoneal tumor local drug delivery system, has high drug encapsulation efficiency and drug loading rate, can release antitumor drugs in tumor tissues specifically, continuously and stably through a tumor acid microenvironment, prolongs the exposure time of the drugs, improves the curative effect of the drugs, reduces the side effects of chemotherapy, can reshape an immune microenvironment, has a good killing effect on tumor cells, and has no systemic toxicity; meanwhile, the gel powder forms a physical barrier on a surgical wound after being changed into a gel by water, so that abdominal cavity adhesion caused by surgical trauma and chemotherapy can be reduced.

The invention relates to the technical field of medical instruments, and discloses a pediatric surgical wound healing pressurizing device which comprises a flexible attaching pad, a skin-friendly breathable layer is arranged on the side, close to a wound of a patient, of the flexible attaching pad, and a groove is formed in the outer wall of the side, close to the wound of the patient, of the flexible attaching pad. An air cushion is fixedly mounted on the inner wall of the side, away from the wound of the patient, of the groove; an elastic base plate is fixedly installed in the groove, and the side, away from the wound of the patient, of the elastic base plate is attached to the side, close to the wound of the patient, of the air cushion; and a medicine slow-release layer is arranged in the groove. Through the flexible attaching structure, pressurization adjustment, convenient disassembly and assembly design and medicine cooperative nursing, the problems that a traditional pressurization device is poor in adaptability, inconvenient to nurse and insufficient in safety can be solved, and efficient, safe and comfortable pressurization nursing can be provided for pediatric surgical wound healing.

The invention discloses a malignant tumor postoperative washing agent as well as a preparation method and application thereof. The method comprises the following steps: taking hematoxylon decoction pieces, adding water, heating, refluxing and extracting to obtain an extracting solution, filtering the extracting solution, and concentrating filtrate to obtain a concentrated solution; adding ethanol into the concentrated solution, standing and precipitating, and carrying out suction filtration or centrifugation to obtain a first supernatant; recovering ethanol in the first supernatant under reduced pressure to obtain a sappan wood water extract liquid medicine; supplementing water into the hematoxylon water extract liquid medicine, and adjusting the liquid medicine ratio to a preset value; adding an antioxidant, stirring and dissolving, standing, and filtering to obtain a second supernatant; adding water into the second supernatant, and adjusting the liquid medicine ratio to a preset value; and then adding an excipient, and stirring for dissolving. The malignant tumor postoperative washing agent with the sappan wood extract as the active ingredient is used for local washing of surgical wounds, shows a killing effect on various cancer cells, and can effectively remove residual tumor cells, so that postoperative recurrence and metastasis of tumors are prevented.

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.

The utility model discloses a surgical wound expander, and mainly relates to the technical field of wound expanders. Comprising a screw rod, the screw rod is rotatably connected with the connecting box, one end of the screw rod is fixedly connected with an adjusting knob, the arc surface of the screw rod is in threaded connection with an adjusting plate, the cross section of the adjusting plate is in an isosceles trapezoid shape, and the adjusting knob is fixedly connected with the adjusting plate. Sliding holes are formed in the two inclined waist sides of the adjusting plate correspondingly, sliding plates slidably penetrate through the two sides of the outer wall of the connecting box correspondingly, and the sliding plates are slidably connected with the inner walls of the sliding holes. The surgical wound expander has the advantages that the expanding assembly is arranged, a worker can control the two expanding plates to conduct expanding operation on a wound of a patient only by rotating the adjusting ring, medical workers can adjust the positions of the expanding plates in time, and the practicability of the surgical wound expander is improved.

The invention discloses a clavicle intramedullary nail. The clavicle intramedullary nail sequentially comprises an implantation fixing section (12) and an implantation positioning section (14). The implantation fixing section is provided with an elastic needle body structure matched with the physiological curve of the clavicle, the implantation positioning section linearly extends in the implantation direction, the implantation positioning section is provided with an operation connecting channel (15), and the operation connecting channel is formed in the end of the implantation positioning section in the implantation direction; at least two clamping notches (13) are further formed in the side wall forming the operation connecting channel in the implanting direction, and an operation device is externally connected through the operation connecting channel and the clamping notches; the implantation positioning section is further provided with a lock nail connecting channel (16), the lock nail connecting channel penetrates through the implantation positioning section and the operation connecting channel in the locking direction inclined to the implantation direction, and after the lock intramedullary nail is nailed, skin tissue irritation can be avoided, skin inflammation is avoided, surgical wounds are reduced, and the minimally invasive requirement is met. The invention further discloses an internal fixing device with the intramedullary clavicle nail and a mounting assembly.

The invention discloses a preparation method of an antibacterial suture line with passivated barbs, and relates to the technical field of medical suture lines. According to the method, core layer and shell layer spinning solutions are prepared, and core-shell structure monofilaments are formed through coaxial electrostatic spinning; the passivated barbs are precisely machined through femtosecond laser, the barb area is locally thinned, and then the antibacterial suture line with the passivated barbs is obtained through antibacterial coating liquid coating, vacuum drying, ethylene oxide sterilization and heat setting. The antibacterial coating liquid is prepared from chitosan, an acetic acid aqueous solution, an antibacterial component and a cross-linking agent. Through the synergistic effect of a core-shell structure and a dual antibacterial system, the long-acting antibacterial property and the mechanical property are considered; the barb form is optimized through femtosecond laser processing, and tissue damage is reduced; the balance of biocompatibility, operation performance and degradation rate is realized through material and process regulation and control, and the suture needle is suitable for clinical surgical wound suture and can reduce infection risk and pain of patients.

A portable system for subatmospheric pressure therapy in connection with healing a surgical wound, including a wound dressing dimensioned for positioning relative to a wound bed of a subject and a subatmospheric pressure mechanism dimensioned to be carried or worn by the subject. The subatmospheric pressure mechanism includes a housing having a control unit adapted to draw a vacuum and a canister associated with the housing. The canister has a collection bag disposed therein, which is in fluid communication with the wound dressing to receive exudates from the wound bed. The collection bag is adapted to expand upon receipt of the fluids and has means to release gas from within the collection bag in connection with operation of the control unit. With this arrangement, the canister is attitude independent, i.e., the canister may be positioned on edge, on its side or on its end etc. while still maintaining operation of the control unit. The collection bag may include a hydrophobic vent or material for releasing the gases. In another embodiment, the collection bag comprises a gas permeable material. The collection bag may include one of pleats or bellows.

The invention provides a degradable hemostatic bandage containing cannabidiol and a preparation method of the degradable hemostatic bandage. The hemostatic bandage comprises a degradable base material and a coating body dispersed in the degradable base material. The coating body comprises gamma-polyglutamic acid-cholesterol and cannabidiol, and the outer part of the cannabidiol is coated with the gamma-polyglutamic acid-cholesterol. The cannabidiol accounts for 0.5%-2% of the degradable base material in percentage by mass. A coating body is prepared in a self-assembly mode, gamma-polyglutamic acid serves as a hydrophilic shell, cholesterol forms a hydrophobic core, cannabidiol can be coated in a self-assembly micelle structure, cannabidiol can be stably coated, when the coating body makes contact with blood, cannabidiol can be rapidly released, and the stability of the self-assembly micelle structure is improved. And a timely hemostasis effect is provided. And meanwhile, the degradable base material is matched, so that inconvenience caused by secondary disassembly and secondary injury to the wound are avoided. The hemostatic bandage is suitable for the fields of surgical wound dressing, sport injury treatment and the like.

The application discloses a hemorrhoid operation system, which comprises a safe blocking component, an intracavitary radial feed drainage knife group, and an intracavitary negative pressure forced stasis discharge component. The safe blocking component is used for sealing with the intestinal wall to block the downward flow of intestinal excrement. The intracavitary radial feed drainage knife group is used for puncturing a lesion. The intracavitary negative pressure forced stasis discharge component is used for negative pressure action on the punctured lesion to discharge stasis. Thus, the downward flow of intestinal excrement can be blocked to avoid infection of a surgical wound. The cyst at the hemorrhoid lesion is punctured to dredge the stasis discharge channel, and the intracavitary negative pressure forced stasis discharge component is used to forcibly discharge the stasis in the cyst. Compared with traditional hemorrhoid medical instrument operation, the hemorrhoid operation system does not need to cut off the epidermis of the internal hemorrhoid lesion and the large intestinal muscle, has no contraindicated population, and will not cause serious complications such as rectal stenosis and death, and has strong safety and significant clinical application value.