749 results about "Saline" patented technology

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

A fluidics system includes a cassette having a saline subsystem, a contrast subsystem, and a vacuum subsystem. The fluidics system further includes a splitter and a first tubing set coupled to the cassette and splitter, the first tubing set having a single saline channel, a single contrast channel, and a single vacuum channel. The fluidics system further includes two or more hub assemblies, at least one of the two or more hub assemblies configured to have a third saline flow-path, a third contrast flow-path, and a third vacuum flow-path to provide saline, contrast and vacuum to the lumen of a catheter coupled to the at least one of the two or more hub assemblies. The fluidics system further includes a second tubing set having a plurality of tube groups, each tube group coupled to the splitter and to one of the two or more hub assemblies.

The invention discloses a device and method for accurately adjusting the extracorporeal circulation left and right heart compression degree, and relates to the technical field of medical instruments. The device for accurately adjusting the extracorporeal circulation left and right heart compression degree comprises a first connector, a sterile saline bag, a first pipeline, a first flow stopping piece, a second connector and a second pipeline. The first connector is suitable for being installed on a liquid inlet pipeline of the rolling pump. The liquid outlet end of the sterile saline bag is connected with the first joint through a first pipeline; the first flow stopping piece is suitable for being arranged on a liquid inlet pipeline of the rolling pump and clamping and closing the blood inlet end of the first connector; the second joint is suitable for being mounted on a liquid outlet pipeline of the rolling pump, and the second joint is detachably connected with the pulmonary membrane through a second pipeline; the second flow stopping piece is suitable for being arranged on a liquid outlet pipeline of the rolling pump and clamping and closing the bleeding end of the second connector. According to the device and the method for accurately adjusting the extracorporeal circulation left and right centroid compaction degree, the accuracy and the convenience of adjustment of the extracorporeal circulation left and right centroid compaction degree are greatly improved.

A fluidics management system includes a cassette configured to receive saline from a saline source, receive contrast from a contrast source, and receive vacuum from a vacuum source. The cassette includes a plurality of saline connectors, each of the plurality of saline connectors configured to couple to one of a plurality of catheters to provide saline thereto, a plurality of contrast connectors, each of the plurality of contrast connectors configured to couple to one of the plurality of catheters to provide contrast thereto, and a plurality of vacuum connectors, each of the plurality of vacuum connectors configured to couple to one of the plurality of catheters to provide vacuum thereto.

The invention discloses a feed functional compound for improving salt-alkali stress resistance of macrobrachium rosenbergii and application of the feed functional compound, and belongs to the technical field of aquaculture. The feed functional compound for improving saline-alkaline stress resistance of macrobrachium rosenbergii provided by the invention comprises vitamin D3, betaine and sodium oleate. According to the invention, the absorption promotion effect of vitamin D3 on calcium and phosphorus ions is utilized, so that the ion metabolism disorder of macrobrachium rosenbergii under saline-alkali stress is improved; by utilizing the osmotic pressure regulation capability of betaine, osmotic pressure unbalance under saline-alkali stress is improved, and the energy consumption of osmotic regulation is reduced; the sodium oleate is used for improving energy supply, the membrane structure is adjusted to improve osmotic pressure adjusting capacity, and the three components act together to achieve the purpose of improving salt-alkali stress tolerance of macrobrachium rosenbergii.

The invention discloses a portable wound surface protection brace and an application method thereof, and belongs to the technical field of medical instruments. The brace is of a cylindrical structure, is made of EVA materials, has flexibility, non-toxic characteristics and good supporting performance and is externally wrapped with cotton cloth and provided with ventilation through holes, high-density cotton strips are fixed to the two ends of the inner wall to form a hollow structure, and the circumference of the outer wall can be adjusted through at least three sets of bandages with hook-and-loop fasteners. And an antibacterial coating is added, so that clinical application is expanded. During application, a wound surface is subjected to liquid extraction and hydrogen peroxide cleaning in the earlier stage and then covered with insulin mixed normal saline gauze, and the dressing is prevented from making contact with clothes in cooperation with a brace; and smearing mupirocin ointment in the later stage and performing infrared irradiation, and continuously using the brace to keep the wound dry and zero contact. The brace can be repeatedly used, can adapt to various wound types and patient body types, effectively solves the problems of wound adhesion and friction in traditional nursing, creates a high-oxygen healing environment, remarkably shortens wound healing time, relieves pain of patients and improves life quality, and has good clinical application and popularization value.

The utility model discloses a ureter structure with an air bag, and aims to solve the problems that 0.5 mL of normal saline needs to be injected into the air bag to jack up the air bag to enable the surface of the air bag to be smooth after the normal saline is pumped out when a ureter is pulled out in the prior art, the pain of a patient is prevented from being increased due to the fact that wrinkles of the air bag rub the urethral wall, and the workload is increased due to the increase of operation steps of nurses. And the catheter pulling speed is reduced. The urinary catheter comprises a urinary catheter body, a hose connector is mounted at the left end of the urinary catheter body, an air groove is formed in the outer surface of the urinary catheter body, a positioning air bag is fixedly connected to the inner wall of the air groove, an air channel is formed in the urinary catheter body and communicated with the air groove, and an air bag connector is fixedly connected to the outer surface of the urinary catheter body. Through the design, normal saline in the positioning air bag is quantitatively retained to support the positioning air bag so as to prevent the positioning air bag from wrinkling, the normal saline does not need to be injected into the positioning air bag for the second time, and the workload of medical staff is reduced.

The invention relates to the technical field of RT type lacrimal passage drainage tube application, and particularly discloses an RT tube application method for simultaneously solving upper and lower lacrimal passage blockage, which comprises the following steps of: firstly, performing preoperative local anesthesia on a patient; the upper lacrimal punctum and the lower lacrimal punctum of the diseased eye are expanded, and after a thin probe is used for probing the obstruction position of the lacrimal passage from the upper lacrimal ductule and the lower lacrimal ductule, the lacrimal passage is flushed Expanding the obstructed part of the lacrimal passage by using a large probe; then, the artificial lacrimal duct is implanted, the RT tube is implanted into the upper and lower lacrimal ducts at the same time, the problem of blockage of multiple parts is solved through a single instrument, repeated damage to periorbital tissue caused by fractional operations is avoided, and the device is particularly suitable for complex cases that upper and lower lacrimal canalicules and nasolacrimal ducts are blocked or narrow at the same time; the whole-course drainage of the tears from the upper and lower lacrimal passages to the nasal cavity is further ensured, and the physiological path of tear circulation is recovered; the RT tube is placed, skin or mucous membrane does not need to be cut open, no scar is visible after operation, and the requirement for periocular beauty is met.

The invention relates to the field of biomedical materials, and particularly discloses a combined biovalve material anti-calcification method and a biovalve material. A combined bioprosthetic valve material anti-calcification method comprises the following steps: taking an animal-derived biological material, cleaning, removing adipose tissue, cutting a precordial region part to obtain a pericardium material, and storing the pericardium material in ice normal saline for later use; mixing the pericardium material and the decellularized treatment fluid A, oscillating and cleaning; adding the pericardium material into the decellularized treatment solution B, oscillating and cleaning; carrying out crosslinking treatment by utilizing a glutaraldehyde pericardium material; adding the crosslinked pericardium material into a reducing agent solution, oscillating and cleaning; the method comprises the following steps: putting a pericardium material into a glycerol-ethanol mixed solution or a glycerol-isopropanol mixed solution, and soaking for more than 24 hours; according to the anti-calcification method, on the basis that the mechanical property of the valve material is effectively maintained, the anti-calcification performance is improved, and the durability of the valve material is improved.

A method for preparing exosomes is provided. The method includes preparing a human platelet, treating the human platelet with a buffer to obtain a platelet solution, centrifuging the platelet solution, and collecting supernatant of the centrifuged platelet solution to obtain an exosome solution. The buffer is calcium ion buffer, phosphate buffered saline (PBS), tris(hydroxymethyl)aminomethane hydrochloride (Tris-HCl) buffer, or 2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid (HEPES) buffer.

The invention belongs to the technical field of bone tissue cryopreservation, and specifically is a method for long-term cryopreservation of autologous bone tissue, comprising the following steps: S1, obtaining a bone tissue sample, washing the bone tissue with physiological saline or phosphate buffer, and removing blood and other residues; S2, preparing a cryopreservation medium, pouring the cryopreservation medium into an inner barrel of a preservation device, wrapping the bone tissue sample with a gauze net bag and hanging it under the middle sealing cover of an outer barrel, and the outer barrel and the inner barrel can slide relative to each other, thereby sinking the bone tissue sample into the cryopreservation medium for preservation; S3, placing the preservation device in a freezing device to pre-freeze the bone tissue; S4, after the pre-freezing is completed, taking out the preservation device and putting it into a liquid nitrogen storage tank to preserve the bone tissue at low temperature; the invention separates the bone tissue and the cryopreservation medium before taking out, so as to reduce the subsequent cleaning workload, reduce the work intensity of medical staff, and improve work efficiency.

The invention discloses a meridian and collateral stasis point and stasis degree detection device, and particularly relates to the technical field of meridian detection, the meridian and collateral stasis point and stasis degree detection device comprises a display and a detector, one end of the detector is provided with a containing cavity, and a stable coating assembly is used for stably coating normal saline in the detector on the surface of a human body when the detector moves along the surface of the human body. The stable smearing assembly comprises a smearing ball installed in the containing cavity in a rolling mode and a limiting ring rotationally connected to the interior of the containing cavity, and the smearing ball is of an oval structure and used for smearing normal saline outside the smearing ball to the surface of the human body; through the arrangement of the stable coating assembly, normal saline in the detector can be stably coated on the surface of a human body when the detector moves along the surface of the human body, the situation that a coating ball falls off due to the influence of external force caused by frequent movement of the detector on the human body is avoided, and the coating continuity of the coating ball on the surface of the human body is ensured; and the detection efficiency of the device on human meridian conditions is improved.

The invention relates to the technical field of medical auxiliary instruments, and particularly discloses an infusion port pressure sore prevention fixing device which comprises an injection fixing cover, a normal saline arc storage frame is fixedly connected to the outer side of the bottom end of the injection fixing cover, and a pressure sore prevention nursing arc frame is fixedly connected to the outer end of the normal saline arc storage frame; after the infusion port injection fixing cover is installed stably, a butt joint pressing plate is pressed to enable a lifting conduction arc plate to move downwards in a pressure sore prevention nursing arc frame, and normal saline in a normal saline arc storage frame flows into a hook-and-loop fastener cleaning and wiping cotton cushion through a normal saline seepage hole to be absorbed by the hook-and-loop fastener cleaning and wiping cotton cushion; the hook-and-loop fastener cleaning and wiping cotton pad cleans the skin outside the infusion port implantation position of a patient, the pressure sore risk caused by long-time pressing of the skin is reduced, the hook-and-loop fastener cleaning and wiping cotton pad wipes normal saline on the skin of the affected part to reduce friction and stimulation to the skin, the comfort of the patient is improved, meanwhile, the occurrence rate of pressure sores is further reduced, and the use safety of the patient is improved. The risk of cross infection is reduced by automatic delivery of normal saline.

The invention provides a preparation method of a skull for autologous replantation, and relates to the technical field of skull treatment. The method comprises the following steps that the taken-out autologous skull is subjected to ultraviolet radiation and then conveyed into a clean room to be subjected to photographing treatment; sequentially carrying out iodophor soaking, alcohol soaking and normal saline flushing on the skull, and then carrying out surface tissue impurity removal and cleaning on the skull; putting the treated skull into a packaging bag, adding a cryopreservation solution to wrap the skull, and then performing vacuumizing and sealing treatment; and sterilizing and cooling the skull subjected to the sealing treatment, and finally feeding the skull into a bone library for cryopreservation. According to the method, the skull of a patient is taken out after an operation to serve as an autologous bone raw material, so that the skull has bone activity within a certain period of time, finally, the skull is replanted to the skull of the patient, the body burden and conflict psychology of the patient are reduced, the exclusive transportation, treatment and storage modes are adopted, the rejection of the patient is reduced, the risk of bone resorption is reduced, and the bone activity is guaranteed; the replanting rate is increased.

The present invention provides a Shatian pomelo white skin layer debitterizing technology, and belongs to the field of pomelo peel processing technologies, and the technology comprises the following steps: peeling and dicing a Shatian pomelo to obtain a Shatian pomelo white skin layer, debitterizing the Shatian pomelo white skin layer, soaking and rinsing the debittered Shatian pomelo white skin layer, and then drying to obtain a finished product. The Shatian pomelo white skin layer is used as a research object, the debitterizing rate and the sensory score are used as index values, the influence of a single debitterizing method (blanching, saline water and enzymolysis) and a composite debitterizing method (blanching saline water compounding and blanching enzymolysis compounding) on the white skin layer debitterizing effect is explored, and the result shows that the blanching saline water compounding debitterizing effect (hot water for 2 minutes, 4% salt soaking for 4 hours and clear water soaking for 1 hour) is optimal; at the moment, the debitterizing rate is as high as 80.1%, the sensory score is 90, and the treatment time is shortened by 29% compared with that of a single debitterizing method.

The invention provides a method for determining < 99m > Tc-DOTA-FAPI-46 and metabolites of < 99m > Tc-DOTA-FAPI-46 in a biological sample. The determination method comprises the following steps: after performing intravenous injection on < 99m > Tc-DOTA-FAPI-46, collecting the sample; adding an organic solvent into the collected sample, uniformly mixing, centrifuging, taking supernate, blow-drying the supernate, dissolving the supernate in normal saline, and concentrating by 1-10 times to obtain a sample injection solution, and the volume ratio of the collected sample to the added organic solvent is 1: (1-3); the sample injection solution is taken and put into high performance liquid chromatography for determination, a detector is a radioactive detector, a chromatographic column is a reversed-phase chromatographic column, and the elution mode is gradient elution; and calculating the proportion of the peak areas of < 99m > Tc-DOTA-FAPI-46, radioactive metabolites and radioactive impurities in the sample in the total radioactive components according to the determined peak area containing the radioactive components. By setting proper pretreatment conditions and liquid chromatogram detection conditions, radioactive metabolites can be detected in a biological sample, the detection sensitivity and accuracy are improved, and the in-vivo stability of drugs can be accurately and efficiently evaluated.

The utility model relates to the technical field of saline-alkali soil irrigation, and discloses a saline-alkali soil circulating oxygenation irrigation device which comprises four oppositely-arranged bases, the same rotating screw rod is rotationally connected between the two opposite bases located on one side, and rotating motors used for driving the rotating screw rod to rotate are fixedly installed on the outer walls of the bases; the output end of the rotating motor is fixedly connected with one end of a rotating screw through a coupler, a same limiting rod is fixedly connected between the two opposite bases on the other side, the limiting rod and the rotating screw are arranged in parallel, and sliding frames are installed outside the limiting rod and the rotating screw. According to the irrigation device, regulation and control of the irrigation position are more flexible, water circulation can be achieved, water is filtered through the filter screen in the water circulation process, and the water circulation efficiency and quality are improved.

The utility model provides a hemostasis compressor capable of limiting pressure, belongs to the technical field of cardiology department medical instruments, and aims to solve the problem that a puncture wound is adhered to a pressing head due to the fact that blood overflowing from a puncture part is coagulated when the existing hemostasis compressor uses the pressing head to perform hemostasis by compression on the puncture part. Comprising a compressor body. The fixing plate is fixedly mounted on the left side of the compressor main body; the pressure adjusting knob is rotationally connected to the upper part of the compressor main body; the hemostasis pressing head is arranged below the compressor main body; the liquid storage cylinder is fixedly installed above the hemostasis pressing head, and the liquid storage cylinder is filled with povidone iodine, medical alcohol, normal saline and other liquid for postoperative disinfection; the separation and disinfection assembly is arranged in the hemostasis pressing head; and the liquid filling assembly is arranged in the liquid storage cylinder. The utility model has the advantages of convenient separation, quick disinfection, simple operation and the like.

The invention belongs to the technical field of biology, and particularly discloses an exosome preserving fluid, which is prepared from the following ingredients in parts by weight: 0.01 to 0.1 part of sodium hyaluronate, 0.1 to 1 part of threonine, 0.5 to 1.2 parts of chitosan, 1 to 4 parts of bovine serum albumin, 1.5 to 3.5 parts of phospholipid substances, 3 to 9 parts of polyhydroxy compounds, 2 to 10 parts of ellagic acid, 2 to 10 parts of tomato extracts, 5 to 15 parts of dimethyl sulfoxide and 64.1 to 66.99 parts of normal saline. The exosome preserving fluid provided by the invention can provide stable conditions for storing the exosome, so as to protect the structure of the exosome and biological information molecules or drugs carried by the exosome from biological, chemical or mechanical damage, effectively maintain the stability, activity and function of the exosome, and ensure that the exosome is not lost in the preservation process.

The invention discloses a film water collection negative pressure system for an antibacterial operation. The film water collection negative pressure system comprises a water collection main body, a waterproof film and a negative pressure drainage tube. The shape of the water collecting main body is configured to surround a water collecting area on the outer side of a surgical incision on the body surface of a patient, and microporous structures facing the stoma of the human body are distributed on the water collecting main body; the water collecting main body and the water collecting area are covered with the waterproof thin film, the waterproof thin film is provided with a surgical operation opening corresponding to the stoma of the human body in position, and the waterproof thin film is further provided with a liquid passing hole facing the micropore structure; the head end of a tube body of the negative pressure drainage tube is connected with the micropore structure in an attached mode. And the tail end of the tube body of the negative pressure drainage tube is communicated and connected with a negative pressure source. Sterile normal saline for lavage incision can be prevented from flowing to an operating table, a bed sheet and the ground along the body of a patient, the sterile environment of an operation area is guaranteed, the risks of low body temperature, postoperative infection and the like in the operation of the patient are reduced, and the experience of the patient in the perioperative period is improved.

Formulations for antibodies and / or antigen-binding molecules (ABMs) that bind to Porphyromonas gingivalis are described. The formulations may be used in treating infections involving P. gingivalis, such as periodontal disease. The formulations comprise at least one of histidine, saline, acetic acid, citrate phosphate, sucrose, and / or Poloxamer P188. In some embodiments, the formulations may also be pH adjusted.

The invention discloses a preparation method of a drug-loaded glycoprotein-like network hybridization tissue engineering valve material, which comprises the following steps: carrying out a one-pot hybridization cross-linking reaction on a decellularized biological material, oxidized hyaluronic acid, phenylboronic acid grafted silk fibroin and curcumin to construct and form a drug-loaded glycoprotein-like network on the biological material; the biological material is animal tissue, including but not limited to any one of pericardium, valve, intestinal membrane, meninx and the like. The method comprises the following steps: soaking a decellularized biological material in a solution A containing OHA, SF-PBA and curcumin, and continuously oscillating for 48 hours to carry out a cross-linking reaction; and then washing with phosphate buffer saline water and distilled water to obtain the drug-loaded glycoprotein-like network hybrid tissue engineering valve material. The prepared tissue engineering valve material overcomes the defects that traditional decellularized valve and glutaraldehyde cross-linked valve materials are easy to calcify, have toxicity and are poor in immunogenicity.

The utility model belongs to the technical field of DTRO (Disk Tubular Reverse Osmosis), and particularly relates to a DTRO salt separation device for sodium sulfate strong brine. According to the utility model, the air inlet is formed in the DTRO device, and the air compression device is arranged, so that sodium sulfate strong brine in the DTRO device is stirred by using compressed air, the turbulence effect is increased, and the adhesion phenomenon of silicon, organic matters and calcium and magnesium ions on the surface of a membrane is reduced; meanwhile, a sodium hydroxide pipeline is arranged on a pipeline for connecting a strong brine outlet of the silicon removal device and the DTRO device, and sodium hydroxide is added into the DTRO device, so that organic matters in the DTRO device are removed, and the blockage condition of the organic matters to a membrane is relieved; according to the utility model, the turbulence effect in the DTRO device is increased and organic matters are removed, so that the blockage condition of a membrane of the DTRO device is effectively reduced, the running time of the DTRO device is prolonged, meanwhile, the frequency of stopping and cleaning the DTRO device is also reduced, and the cleaning cost is reduced.

The utility model relates to the field of medical equipment, in particular to a medical sterile wound irrigator which comprises a liquid spraying pipe, a balloon, a liquid outlet pipe and a needle head, one end of the balloon is fixedly connected with the liquid spraying pipe, the other end of the balloon is fixedly connected with the liquid outlet pipe, and the end, away from the balloon, of the liquid outlet pipe is fixedly connected with the needle head. The needle head penetrates through the two ends of the conical cavity, a circle of shell is arranged at the bottom of the conical cavity, the liquid outlet pipe enters the conical cavity from the shell, the head of the conical cavity is attached to the needle head and is in a straight line, and the head of the conical cavity can be opened and closed relative to the needle head; a gravity ball ring is arranged in the conical cavity and penetrates through the needle head, and the tail end of the liquid outlet pipe is fixedly connected with the gravity ball ring. The device has the effects of improving the flushing efficiency and reducing wound pollution.

The invention discloses a pulmonary tuberculosis sputum taking device, which relates to the technical field of pulmonary tuberculosis sputum taking, specifically comprises a portable box, an adjustable sputum aspirator, a sputum storage tank, a sheath tube and a sputum taking tube, and is characterized in that a cavity for placing the adjustable sputum aspirator, a micro liquid pump, a control box, a liquid storage box and a storage drawer is formed in the portable box; the upper end and the lower end of the portable box are each fixedly provided with a fixing ring for installation of a bandage. The sputum taking tube is sleeved with the sheath tube for spraying normal saline or sodium bicarbonate solution, so that only one-time tube placement is needed in the sputum taking process, repeated tube placement is not needed, the comfort of a patient is improved, the end, making contact with the breathing inner wall of the patient, of the sputum taking tube is improved, a plurality of flexible contacts are designed, and the sputum taking tube is convenient to use. Therefore, when the sputum taking tube is in contact with the respiratory inner wall mucous membrane of a patient, the sputum taking tube is separated by the soft flexible contact, so that the end of the sputum taking tube cannot scratch the respiratory inner wall mucous membrane.

The invention discloses hydrogel for preventing postoperative tissue adhesion and a preparation method thereof, and belongs to the field of medical biological materials. The hydrogel is formed by taking a carboxylated chitin / chitosan derivative with the percentage concentration of 0.5-7% or a low-crosslinking-degree supramolecular derivative of a hydroxyalkylated chitin / chitosan derivative and collagen or gelatin as a solute and water, normal saline, a physiological equilibrium solution, a phosphate buffer solution or a Green's solution as a solvent, the crosslinking degree of the low-crosslinking-degree supramolecular crosslinking derivative is 0.1 to 6 mol percent. The molar ratio of the raw materials to the cross-linking agent is controlled, a small amount of cross-linking agent is used for micro-crosslinking, the prepared low-crosslinking-degree supramolecular derivative can form hydrogel in an aqueous solvent, and the hydrogel has adhesiveness and self-repairing performance, can effectively prolong the residence time and physical barrier time of the hydrogel on the surface of an operative wound, and can be used for preparing the hydrogel. Therefore, the effect of preventing postoperative combined adhesion of the hydrogel is improved, and the hydrogel is an ideal hydrogel material for preventing postoperative abdominal cavity and uterine cavity tissue adhesion.

The invention relates to the technical field of endoscopes, in particular to a multi-angle operation sheathing canal for arthroscopic surgery, which comprises an insertion tube and an observation tube arranged in the insertion tube, the insertion tube comprises an outer tube body, a protective cover arranged at the end part of the outer tube body, and a shifting and scraping part, a driving part and a cleaning part which are arranged in the insertion tube from left to right, and a spherical glass cover is clamped at the end part of the outer pipe body. According to the multi-angle operation sheathing canal for the arthroscopic surgery, a motor drives a disc and a shifting rod and drives a square frame to horizontally reciprocate, a linkage connecting rope pulls a line wheel, a volute spiral spring is utilized, a hanging strip can continuously swing, a cleaning part is synchronously triggered, a piston plate is driven to pressurize a liquid storage barrel, normal saline is forced to be injected into a hanging strip liquid passing groove through a liquid pipe, and the normal saline is injected into the hanging strip liquid passing groove; the flushing fluid is directionally sprayed from the fluid outlet hole, accurate cooperation of scraping action and flushing fluid spraying is achieved, dirt is mechanically scraped by swinging of the hanging strip, meanwhile, the observation window is scoured by high-pressure normal saline, and the cleaning efficiency is improved.

The utility model relates to a full-needle water-cooling microwave ablation needle which comprises a handle, a needle rod and a needle head connected to the front end of the needle rod. The needle rod comprises an outer tube, an inner tube and a coaxial cable which are coaxially arranged from outside to inside, the inner tube comprises a capillary tube and a water conduit which are sequentially arranged along the extension direction of the needle rod, and the capillary tube is hermetically connected with the water conduit through a choke ring; the front end of the water conduit extends into the inner front end of the needle, a microwave antenna is arranged in the needle, an inner conductor of the coaxial cable is connected with the microwave antenna, and the water inlet channel and the water return channel are communicated at the inner front end of the needle. The external water supply mechanism pumps normal saline into the water inlet channel, the normal saline enters the needle from the water inlet channel to cool a radiation area, then the normal saline flows back into the water return channel from the front end in the needle, and then the normal saline is discharged through the external water discharge mechanism. Normal saline flows through the whole needle rod and the needle head, so that the cooling effect is better.

The invention provides an oral cavity and maxillofacial surgery postoperative oral cavity nursing device which comprises a machine body assembly and an oral cavity plugging mechanism, and the machine body assembly comprises a main base, a side base and a medium storage bottle; wherein the side base is connected to one side of the main base in a clamped mode, the medium storage bottle is arranged on one side of the main base, and the oral cavity plugging mechanism is arranged above the main base; the micro gear motor drives the two rotating frames to rotate, and the rotating rotating frames are matched with the rolling wheels to roll the outer sides of the medium conveying pipe and the liquid discharging pipe, so that the medium conveying pipe is matched with the medium guiding mechanism to inject liquid medicine or normal saline into the oral cavity of a patient; the drainage pipe is matched with the medium guide mechanism to extract hydrops in the oral cavity of a patient, the operation mode during oral cavity nursing is simplified, the oral cavity is nursed in a liquid injection mode, the influence on a wound in the oral cavity in the nursing process is reduced, and the comfort level of the patient during use is improved.

The invention discloses a preparation method of quick-frozen sterilized onion dices soaked in saline water, and relates to the field of food processing. The making method of the quick-frozen sterilized onion dices soaked in saline water comprises the steps of primary treatment, blanching, machine cutting, saline water disinfection and quick freezing. According to the preparation method of the quick-frozen salt-water-soaked sterilized diced onions, microorganisms on the surfaces of the diced onions can be effectively killed in a salt-water-soaking sterilization manner, so that the sanitation and safety of the product are ensured. Sodium chloride in the saline water can destroy cell wall structures of microorganisms and inhibit growth and reproduction of the microorganisms, so that the sterilization effect is achieved. By adopting a four-stage gradient freezing mode, fine ice crystals can be formed, damage to cell structures of the diced onions is reduced, and the nutritional ingredients and taste of the diced onions are kept to the maximum extent.