61 results about "Frostbite" patented technology

This invention provides a rapid rewarming and circulatory support system for frostbite and hypothermia in high-altitude environments, relating to the field of treatment device technology. It includes: a first temperature acquisition module for acquiring and preprocessing the current first ambient temperature, the first frostbitten skin surface temperature, and a first skin surface image; a control module connected to the first temperature acquisition module for analyzing the preprocessed first ambient temperature, the first frostbitten skin surface temperature, and the first skin surface image to determine the corresponding first target temperature and a first target warming rate; and a temperature regulation module connected to the control module for gradually warming the skin to the optimal preset temperature according to the warming rate. This invention achieves dynamic temperature control, continuous protection, and intelligent decision-making for frostbite and hypothermia in high-altitude environments.

The invention discloses application of polyol nitrate in frostbite resistance, and belongs to the technical field of skin protection articles. The polyol nitrate is used as an active component of the ointment, and by slowly releasing nitric oxide and activating vascular endothelial nitric oxide synthase, spasm capillaries in the early stage of frostbite are effectively relaxed, platelet aggregation and thrombosis are inhibited, so that the pathological cascade reaction of frostbite is blocked, and the prevention and treatment effects on frostbite are remarkably improved. Compared with the prior art, the polyol nitrate and the ointment are scientific and reasonable in preparation method and safe and convenient to use, and a brand-new and effective solution is provided for prevention and treatment of skin frostbite in a cold environment.

The utility model discloses a rotary thermometer verification insertion disc structure, which comprises a locking device (1), a fixed disc (2), a supporting rod (3), a base (4) and a rotary bearing (5), the base (4) is installed on the rotating bearing (5), the fixing disc (2) is arranged above the base (4), the base (4) is connected with the center of the fixing disc (2) through the supporting rod (3), a via hole is formed in the fixing disc (2), the locking device (1) is installed on the via hole, and the thermometer penetrates through the locking device (1) and the via hole. When the thermometer is fixed, a distance is kept between the thermometer and a high-temperature (low-temperature) medium, so that the hidden danger of scalding (frostbite) is eliminated; the thermometer is fixed reliably and compatible with various other types of thermometers; during reading, the plug disc rotates smoothly and is simple in operation. According to the device, the safety, reliability and working efficiency of thermometer verification are improved.

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a portable low temperature sealing fresh -keeping device for severed finger preservation, box body, the box body is open -ended lower end closed -type structure, the box body still includes the limiting groove for placing the severed finger, the top cover, the bottom cover makes the bottom cover and the top between the box body form low temperature cavity, the through -hole no. 1 is set up on the lateral wall of box body and is connected with low temperature cavity, the top cover includes: the temperature gauge time module is installed in the top cover, the upper sealing ring is installed in the lower end edge of top cover, the water bag and refrigerant medium are placed in the low temperature cavity, the water bag one side is equipped with the easily torn part, is connected with the drawstring on the easily torn part, the drawstring one end passes through the through -hole no. 1 and sets up. The utility model has the beneficial effects that: simple structure is practical, can avoid the frostbite of severed finger, can monitor the preservation temperature in real time and record the time length of preservation, the sealing moisture -proof property is good, can prevent pollution dehydration, and refrigeration is started conveniently and safely, is suitable for the severed finger preservation and the transfer needs.

The utility model discloses a third-generation hot air anti-freezing device which comprises a fan device. The fan device comprises a combustion chamber, one end of the combustion chamber is provided with an air supply fan, and the other end is provided with a guide plate connected with a heat conduction pipe; the heat conduction pipe is connected with a heat supply device, the heat supply device comprises a main pipe, two sides of the main pipe are respectively connected with a plurality of branch pipes, the branch pipes are connected with plant planting areas, and the main pipe and the branch pipes are provided with a plurality of heat supply through holes. Remote simultaneous frost prevention and freezing prevention of a plurality of plant planting areas can be achieved, frequent moving of the fan device through a moving device is not needed, labor cost is saved, and waste of labor cost and fuel resources of re-ignition caused by flameout and waiting for cooling of the fan device in order to prevent workers from being scalded by moving the fan device during combustion is not needed. The risk of frost damage and frostbite of vegetation due to the fact that the movable fan device cannot provide heat for the vegetation area in time is also avoided; and the heat can be accurately conveyed to the vegetation area needing the heat, and heat waste is avoided.

The invention belongs to the technical field of plant essential oil, and discloses gaultheria yunnanensis composite essential oil and a preparation method thereof. The essential oil comprises the following raw materials: 40-60 parts of gaultheria yunnanensis essential oil, 10-20 parts of peppermint oil and 20-30 parts of ginger oil. The gaultheria yunnanensis essential oil is used as a core raw material and matched with the peppermint oil and the ginger oil, the effects of the gaultheria yunnanensis essential oil, the peppermint oil and the ginger oil are complementary, the anti-inflammatory and analgesic effects of the gaultheria yunnanensis essential oil, the cooling and itching-relieving effects of the peppermint oil and the effects of the ginger oil for promoting blood circulation to remove blood stasis and warming channels and expelling cold are mutually matched, and the problem The compound essential oil can comprehensively relieve various discomforts such as muscle and joint pain, swelling, mosquito bite itching and chilblain, the relieving effect is better than that of existing single essential oil or conventional compound essential oil, the effective components of methyl salicylate, menthol and gingerol of the three essential oils jointly act on pain and inflammation targets, and the relieving effect is improved.

A multifunctional pillow comprises a head pillow and a neck pillow, the head pillow and the neck pillow are arranged through hook-and-loop fasteners, one side face of the neck pillow is fixedly connected with a base, an adjusting assembly is installed on the base, a threaded hole is formed in the base, the top end of a threaded rod is fixedly connected with a universal ball, and the universal ball is in interference fit in a holder. A hose is fixedly connected to the top of the holder, an A-shaped clamp is installed at the tail end of the hose, a hook-and-loop fastener wire binding belt is connected to the A-shaped clamp in a sleeved mode, and a hook face area and a loop face area of the hook-and-loop fastener wire binding belt are mutually bonded and encircled. The holder can rotate around the universal ball, so that the hose, the A-shaped clamp and the hook-and-loop fastener wire binding belt are driven to be adjusted in different directions, the A-shaped clamp can better clamp the breathing filter, and the A-shaped clamp can bind a catheter of the breathing filter after the hook-and-loop fastener wire binding belt is unfastened. Therefore, the problem of chilblain caused by the fact that the breathing filter and the catheter are not properly fixed on the face of the patient is solved.

The invention discloses a rapid cooling device for an intensive care department, the rapid cooling device comprises a first fixing block and a second fixing block, a cooling assembly is arranged between the first fixing block and the second fixing block, the cooling assembly comprises a plurality of first cooling belts and a plurality of second cooling belts, and the first cooling belts and the second cooling belts are arranged in a staggered manner; isolation pads are arranged on the inner sides of the first cooling belt and the second cooling belt, and control assemblies are arranged between the first cooling belt and the second cooling belt and the second fixing block; the arranged cooling assembly can cool the trunk of the patient, and meanwhile, the contact position of a cooling part in the cooling assembly and the skin of the trunk of the patient can be adjusted through the control assembly, so that the problem of skin frostbite of the patient caused by long-term unchanged heat conduction body parts of the patient is avoided; the position of the heat exchange liquid is replaced to adjust the heat exchange part of the body of the patient so as to avoid frostbite, and meanwhile the heat exchange efficiency is kept.

The utility model relates to the field of beekeeping, and discloses a beehive overwintering heat preservation device for preventing bee colony frostbite, which comprises a beehive body, two baffles and a collecting mechanism, a through hole leakage plate is fixedly arranged at the lower end in the beehive body, and a heat preservation plate is fixedly arranged on the inner side of the inner wall of the beehive body. The collecting mechanism comprises a fixing box and two racks, partition plates are fixedly arranged at the positions, close to the two sides, of the inner end of the fixing box, through grooves are formed in the lower ends of the two partition plates, a top inclined plate box is fixedly arranged between the two partition plates, a motor is fixedly arranged at the inner bottom end of the top inclined plate box, and the output end of the motor is fixedly sleeved with a gear. Mounting beams are fixedly arranged on the opposite sides of the two racks, and collecting boxes are fixedly arranged on the two sides of the two mounting beams. According to the utility model, after the motor is started, the two racks can move in opposite directions, and after the collecting box passes through the through groove, a user can conveniently clean excrement in the collecting box.

The technical objective of this invention is to provide a protective pad against skin conditions. Destroyed by extreme cold for the cryolipolysis process, where the component... Waterproofing may be provided to prevent tearing or with waterproof components and base parts. It may be prevented from separating during the negative pressure process and Waterproof components can be easily attached to the base components without defects. In this case, a protective pad is used to prevent skin damage from extreme cold during the fat breakdown process. This invention's cooling agent is a protective pad against frostbite that is designed to prevent skin damage. The design is intended for use in cryolipolysis (fat freezing) procedures utilizing a fat-dissolving device. Cooling and protective padding against frostbite will include a base component made of... Made from fibrous materials, one or more waterproof components made from resin materials, and... It is placed by overlapping the base components and one or more stitched sections that are made by... Sew the base assembly and the waterproof assembly together to connect the base assembly and the waterproof assembly. Waterproof in a condition where the base component and the waterproof component are superimposed;

The invention relates to the technical field of medical assistance, in particular to a clinical cooling device for emergency treatment, which comprises a box body and a trunk airbag layer, and an air storage tank and a liquid storage tank are embedded in the box body; the two sides of the trunk airbag layer are fixedly connected with a head airbag layer and a hip airbag layer respectively; the head air bag layer, the trunk air bag layer and the hip air bag layer are each composed of a plurality of air bags fixedly connected with one another. An air supply assembly for supplying air to each air bag is arranged in the air storage tank; and a liquid supply assembly for supplying liquid to each air bag is arranged in the liquid storage tank. Liquid conveying and gas conveying of different schemes can be carried out on the head air bag layer, the trunk air bag layer and the hip air bag layer according to the actual requirements of different parts of the body of a patient, so that targeted temperature adjustment is carried out on all areas of the body of the patient, and the cooling effectiveness is improved; meanwhile, the risks of frostbite and pressure sores on the body surface of the patient are reduced.

The utility model relates to the technical field of medical equipment, and discloses a device for prosthesis breast augmentation shaping and tissue healing promotion, which comprises a cold therapy machine body, a control switch is arranged on the cold therapy machine body, a connecting pipe is inserted on the cold therapy machine body, a cold therapy head is arranged at the end part of the connecting pipe, and a fixing frame is arranged outside the cold therapy head. The fixing frame is arranged outside the cold therapy head, the protective sleeve is installed in the fixing frame, the cold therapy head can be effectively covered and prevented from making direct contact with the skin, so that frostbite is avoided, the protective sleeve can be stably clamped in the fixing frame through the design of the clamping assembly, the protective sleeve is prevented from sliding or falling off in the treatment process, and the protective effect is ensured; when a traditional cold therapy machine is used, a towel needs to be placed at the chest, the device does not need to additionally place the towel through the design of the protective sleeve and the clamping assembly, a patient can keep a certain movement freedom degree when subjected to cold therapy, the patient is not limited by placing the towel, and the comfort degree in the treatment process is improved.

The invention relates to the related technical field of cooling clothes, in particular to a physical cooling clothes with a bag body formed by a membrane structure, which comprises a cooling jacket, a neck cooling sleeve and a head cooling sleeve, and the cooling jacket, the neck cooling sleeve and the head cooling sleeve are respectively composed of a welding block, a first membrane structure and a second membrane structure; the second film structure faces inwards, when the second film structure makes contact with the human body, the sponge layer plays a role in slowly releasing temperature and isolating too low temperature, excessive temperature stimulation is avoided, the somatosensory comfort degree is improved, and the effective cooling time is prolonged; when the first film structure makes contact with the human body, it can be guaranteed that cold energy is rapidly transmitted, the physical cooling effect is improved, the multiple welding blocks are evenly distributed in the bag body, the honeycomb-imitating hexagonal structure and the middle pressing ring are arranged, and the structural strength is good and the stability is extremely high; according to actual requirements, different film structures are attached to the surface of the human body for physical cooling, the somatosensory comfort of a user is improved, frostbite is avoided, and the physical fever abatement effect is improved.

The invention discloses a temperature adjusting method and system for wide-temperature air-conditioning clothes, relates to the technical field of air-conditioning clothes temperature control, and aims to solve the problems that existing air-conditioning clothes are low in comfort and often cause low-temperature frostbite, and the method comprises the following steps: S1, collecting real-time temperature data including internal and external temperature data of the air-conditioning clothes and real-time user temperature data, determining a preliminary comfort interval according to the real-time temperature data; s2, determining the maximum risk position in the air conditioning suit according to the initial comfort interval and the environment temperature; s3, carrying out targeted temperature regulation on the whole air conditioning suit and the maximum risk position to generate a preliminary regulation scheme; and S4, based on a low-temperature frostbite protection mechanism, the preliminary adjustment scheme is adjusted, and a final adjustment scheme is obtained. According to the method, the comfort level of the air conditioning suit can be remarkably improved, the low-temperature frostbite phenomenon can be prevented, and the user experience feeling is improved.

The invention relates to the technical field of medical cold compress, and discloses an orthopedic nursing ice bag which comprises a flexible main body bag and an ice storage cavity formed in one side of the flexible main body bag, a cold core body is arranged on the side, close to the flexible main body bag, of the ice storage cavity, and a fixing belt is arranged on the side, perpendicular to the ice storage cavity, of the flexible main body bag. The side, close to the fixing band, of the flexible body bag is embedded in the fixing band, and a binding band is arranged on the side, away from the flexible body bag, of the ice storage cavity. According to the invention, through the full-wrapping sealing design of the ice storage cavity on the cold core body, on one hand, the contact between the cold core body and the human skin can be directly blocked, and the risks of skin frostbite and the like caused by leakage of a cold storage medium or direct low-temperature stimulation are avoided; on the other hand, the cold core body can be limited in the functional area of the flexible main body bag through the fixed connecting structure of the ice storage cavity and the flexible main body bag, the cold core body is prevented from moving due to limb movement in the using process, and it is ensured that the cold compress area accurately covers the injured part.

To provide a dry ice case that can cool the underarms and neck area, which are considered to be effective in preventing heat stroke, for a long time by using dry ice having excellent cooling effect, and can prevent frostbite and dew condensation, and a cooling harness that can be worn as an inner layer. [Solution] A cooling harness comprising shoulder and back members, two side strings that pass under each armpit, a chest string that connects the side strings together, and side pockets located under both armpits on the side strings, characterized in that a dry ice case is provided inside the side pockets.

The invention discloses a human embryo storage device, which relates to the technical field of medical instruments and comprises a storage tank, a storage rack, a manipulator and a control panel, the storage tank is used for containing liquid nitrogen to freeze embryos; the storage rack is arranged at the bottom in the storage tank and used for storing the freezing carrying rods; the manipulator is arranged in the storage tank and comprises a chuck used for clamping, taking and placing the frozen carrying rod; the control panel is arranged outside the storage tank and connected with the mechanical arm through a signal line. The human embryo storage device is beneficial to preventing hands from being frostbitten by liquid nitrogen, meanwhile, the frozen carrying rods can be quickly stored and taken, and embryo storage and taking are more accurate.

The utility model discloses a liquid nitrogen injection assembly, including the storage tank, the storage tank fixedly connected with the feed inlet, the feed inlet is connected with the sealing cover, and the inside insertion of sealing cover has injection pipe, and one end fixedly connected with the positioning cylinder of injection pipe, through setting the cooperation and use of storage tank, feed inlet, sealing cover, injection pipe, air inlet pipe, the cooperation and use of the blocking assembly of type frame and plugging assembly, the close cooperation of sealing cover and feed inlet, and the setting of blocking assembly, effectively prevent the leakage of liquid nitrogen in the storage and injection process, reduced the security risk of liquid nitrogen leakage and caused, such as personnel frostbite, equipment freeze damage and environmental pollution etc, and the blocking assembly and sealing cover etc.

The utility model relates to the technical field of ice caps, in particular to a water-injectable ice cap. According to the technical scheme, the ice cap comprises an ice cap body worn on the head and further comprises a water injection mechanism installed at the top of the ice cap body and used for injecting water into the ice cap body, and a plurality of grid cavities which are communicated with one another are formed in the ice cap body, and the neck clamping groove is formed in the bottom of the ice cap body to expose the neck. According to the ice cap, the neck clamping groove, the ear clamping grooves, the water absorption mechanism, the binding machine and other structures are matched, the ice cap is placed in a refrigerator to be frozen after being injected with water, and the ice cap can be taken out to be used after ice blocks form the head shape. The lower portion of the ice cap is bound, at the moment, the rear portion of the neck and the two ears are hollowed out, cold compress taboo parts can be fully avoided to prevent frostbite, the ice cap can be better attached to the head, and the cooling effect is better. Meanwhile, the water-absorbing cotton sliver is arranged at the bottom of the ice cap and used for absorbing molten water, so that surrounding skin is prevented from being wet and uncomfortable.

The invention discloses a cold region frostbite prevention mask capable of adjusting temperature through electric control, and relates to the technical field of frostbite prevention masks, the cold region frostbite prevention mask comprises a warm-keeping cover and bandages, an air inlet pipe and an air outlet pipe are symmetrically arranged on the left side and the right side of the warm-keeping cover, a plurality of bandage buckles are fixed on the periphery of the warm-keeping cover, and the bandage buckles are used for being connected with elastic bandages. The elastic bandage is hooped on the head of a human body, so that the warm-keeping cover is worn on the face of the human body; the air inlet pipe and the air outlet pipe are respectively connected with power supply lines and are connected with a control box on the bandage through the power supply lines, an air inlet controller and an air outlet controller are arranged on the control box, the air inlet pipe is electrically connected with the air outlet controller through the power supply line, and the air outlet pipe is electrically connected with the air inlet controller through the power supply line; according to the invention, the wearing is convenient, the temperature of air flowing through the interior of the warm-keeping cover can be electrically controlled and adjusted after the warm-keeping cover is matched, the matching is comfortable, the cold-proof and anti-freezing effects are better, the warm-keeping cover is more suitable for being worn and used at low temperature, and an effective and comfortable protection effect is provided for a user.

The application discloses a marine lifesaving suit, which comprises a lifesaving suit body with functions of inflation and heating, the lifesaving suit body comprises a hydrophobic outer layer and a skin-friendly and breathable inner layer; the hydrophobic outer layer is composed of a waterproof cloth with micro-nano particles deposited on the outer surface, the micro-nano particles have a core-shell structure with different axes, wherein the core layer is composed of a jellyfish repellent, the shell layer is composed of an adhesive, the jellyfish repellent is elemental sulfur or a mixture of elemental sulfur and lanthanum chloride, and the shell layer covers 10-60% of the peripheral surface area of the core layer. Experimental results show that the micro-nano particles can significantly inhibit the emission of jellyfish nematocysts and have a repellent function of protecting against jellyfish stings, so that the marine lifesaving suit can solve the problems of cold water frostbite, drowning in seawater and jellyfish stings that may be suffered by personnel immersed in seawater, and has significant application value.

This invention discloses a liquid nitrogen storage tank with liquid level and temperature monitoring, belonging to the technical field of liquid nitrogen storage equipment. It includes a tank body with an inlet pipe connected to the upper outer wall and a drain pipe connected to the lower outer wall, with a drain valve connected to the drain pipe. A dual-point level gauge and a temperature monitor are also connected to the tank body. A through hole is opened in the upper part of the tank body, and a basket assembly is movably embedded in the through hole. A semen storage tube is installed inside the basket assembly, and a sealing cap is threaded to the upper part of the semen storage tube. A seal is formed between the upper part of the basket assembly and the through hole. A locking component is provided in the upper part of the tank body, and the locking component is movably fitted with the upper part of the basket assembly. This invention not only achieves sealing, locking, and opening of the basket assembly during insertion into the tank, but also unlocks, closes, and seals the basket assembly when it is removed from the tank, avoiding the problem of low-temperature nitrogen overflowing from the tank, causing frostbite to workers' hands, and preventing waste.

The lifting material basket comprises a bottom plate, two supports are fixedly connected to the middle of the top end of the bottom plate, and a cryogenic pool and a supporting block are fixedly connected to the two sides of the top end of the bottom plate respectively. The material basket comprises a support, the support is slidably connected with a circular truncated cone, an annular rail is arranged on the side of the circular truncated cone, a sliding block is slidably connected into the annular rail, the sliding block is fixedly connected with a material basket body, the support is fixedly connected with a lifting driving mechanism, and the lifting driving mechanism is fixedly connected with the circular truncated cone. Automatic lifting of the material basket can be achieved, subzero treatment can be automatically completed, use is safe and convenient, and the risk of frostbite is avoided; the material basket can rotate to the other side of the cryogenic tank, so that the die steel can be taken and placed on the different sides, an operator is prevented from being too close to the cryogenic tank, and the safety is further improved.

The application relates to the technical field of frozen soil deformation detection, and discloses a frozen soil frost heaving deformation experiment device and method, which comprises a low-temperature test box, a lead screw shaft, a bearing plate, a sliding plate and a half gear. The lead screw shaft is arranged, after detection, the rotation of the lead screw shaft drives the rocker arm to change, the bearing plate with the frozen soil test block is ejected from the low-temperature test box, the operator can conveniently dismount the frozen soil test block and the bearing plate, the possibility of frostbite is reduced, the frozen soil test block and the bearing plate are mounted and dismounted together in the later stage, the dismounting efficiency is not affected by the fact that the frozen soil test block is bonded to the bearing plate, when the bearing plate moves upwards, the sliding plate can be finally moved out of the sliding hole, the automatic unlocking purpose is achieved, the guide rack on the sliding plate is engaged with the half gear to rotate, the rocker plate is driven to rotate to the vertical state, the dismounting efficiency is improved, and the safety is higher.

This utility model discloses a movable liquid nitrogen tank placement rack structure, mainly relating to the field of liquid nitrogen tanks. It includes a frame with a placement slot for holding the liquid nitrogen tank. Multiple support rods are slidably connected vertically to the side of the frame, and positioning posts are provided between the support rods and the frame. A support plate is threadedly connected to the bottom of the frame, and multiple limiting rods are provided between the support plate and the bottom of the frame. Multiple rollers are provided at the bottom of the support plate. The advantages of this utility model are: it solves the technical problems of existing liquid nitrogen tanks being inconvenient to move and posing a risk of frostbite during movement, enabling convenient movement of the liquid nitrogen tank, ensuring the stability of the liquid nitrogen tank during movement, and preventing liquid nitrogen leakage that could lead to frostbite.

The invention relates to the technical field of medical first-aid equipment, in particular to a first-aid cold compress device for hypertensive cerebral hemorrhage patients. Comprising an outer coating layer, a middle cold compress layer, an inner attaching layer, a fixing frame and a locking mechanism. According to the device, under the condition that no external power supply exists, long-time stable low-temperature output can be achieved by means of the thermodynamic property of the phase change material and the synergistic effect of the mechanical temperature control valve, the cold compress surface temperature can be effectively controlled within a safety interval, and the frostbite risk is avoided; the partition cavity design of the middle cold compress layer can be matched with skull anatomical features, and the heat flow difference caused by high perfusion of the temporal area and low perfusion of the top occipital area is effectively balanced. The problems that an existing cold compress product is unstable in temperature control, tedious in operation, not firm in fixation and insufficient in partitioned cold compress effect in the emergency treatment process are solved.

The utility model relates to the technical field of ice caps, in particular to an anti-slip ice cap which comprises a cap body and a neck supporting protection pad, the cap body comprises a double-layer rubber layer, an annular opening is formed in the inner side of the double-layer rubber layer, an invisible zipper is fixed to the edge of the annular opening, a plurality of ice columns are arranged in an interlayer of the double-layer rubber layer, and the neck supporting protection pad is arranged in the interlayer of the double-layer rubber layer. A fixing piece is further fixed in the interlayer of the double-layer rubber layer, by arranging the fixing piece, each ice column is fixed in the placing hole of the heat preservation layer, ice blocks are prevented from sliding, moving and gathering to a certain position when a patient turns over or moves, chilblain is reduced, meanwhile, the brain oxygen consumption can be reduced, brain cells can be protected, and the patient can feel comfortable. And by arranging the containing bag, the double rubber layers and the sealing ring, the conditions of ice column melting and liquid leakage can be avoided, the ice column fusion time is shortened, and the comfort level of a patient is improved.

1. Name of the product in this design: Cold-proof clothing (Meridian temperature-adjusting tracer armor). 2. Purpose of this design: This design is intended to prevent frostbite, disability, and disappearance of single human beings under extremely cold conditions. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Since the top view of the product lacks design features, it is omitted; since the bottom view of the product lacks design features, it is omitted. 6. The mannequin in the design drawings is a supporting element and does not fall under the scope of the design for which protection is sought.

The invention relates to a plant source chilblain cream and a preparation method thereof, the chilblain cream is composed of metaplexis japonica extract, propylene glycol and an antioxidant, the effective component metaplexis japonica extract has a good treatment effect on skin chilblain, and the prepared chilblain cream can promote healing of an affected part and shorten the treatment period, and is green, safe, non-irritant and free of toxic and side effects. The chilblain repairing preparation is convenient to use.

The utility model discloses a liquid nitrogen filling mechanism. The liquid nitrogen filling mechanism comprises a rack, a lifting assembly, a filling pipeline, a control valve and a driving assembly. The lifting assembly and the filling pipeline are both arranged on the rack, the lifting assembly has a movable state and a fixed state, and the liquid outlet end of the filling pipeline is connected with the lifting assembly; the control valve is arranged on the filling pipeline; the driving assembly is connected with the control valve; when the lifting assembly is in the movable state, the lifting assembly can ascend and descend relative to the rack. When the lifting assembly is in the fixed state, the lifting assembly is fixed relative to the rack. The container is placed below the liquid outlet end, the lifting assembly is switched to the movable state, the liquid outlet end is driven to descend and be inserted into the container, then the lifting assembly is switched to the fixed state, the control valve is driven to be opened through the driving assembly, and liquid nitrogen is input into the container through the liquid outlet end of the filling pipeline. Due to the fact that the liquid outlet end is fixed through the lifting assembly, manual operation is not needed, the risks of suffocation and frostbite of operators are effectively avoided, and use safety is improved.