58results about How to "Reduced risk of puncture" patented technology

The invention discloses a left auricle occluding device. The left auricle occluding device comprises a sealing disc and an anchoring device, both of which are connected. The position where the anchoring device is matched with a left auricle is an anchoring net of a boneless structure. The overall anchoring device is of a boneless structure and formed by weaving of hyper-elastic metal wires or memory alloy metal wires. The far end of the anchoring device is in the shape of an opening. The near end of the anchoring device is collected and connected with the sealing disc to form a conical net. The far end of the anchoring device is opened and turned up towards the near end to form the anchoring net surrounding the conical net. The anchoring net is joined with the conical net by means of a circular transition area. The left auricle occluding device has following beneficial effects: force can be uniformly distributed to be anchored in the interior of the left auricle in order to eliminate concentration of local stress and can also be repeatedly released; and an opening part of the left auricle is effectively and reliably blocked.

The invention provides a liquid crystal display panel, comprising a first base plate, a second base plate and a frame glue situated between the first base plate and the second base plate; the liquid crystal display panel further comprises a display zone and a non-display zone; the frame glue is located at a non-display zone and arranged around the display zone; the liquid crystal display panel further comprises a first groove, a second groove, a first spacer and a second spacer; a bulge is formed between the groove wall of the first groove and the groove wall of the second groove, wherein the first groove and the second groove are arranged at one side of the first base place closing to the second base plate; the first groove and the second groove are situated between the frame glue and the display zone; the first groove is arranged between the frame glue and the second groove; the first spacer is extended into the first groove from the second base plate; the second spacer is extended from the second base plate to the bulge and contacted with the bulge. The structure forms a frame glue diffusion buffer layer closing to the frame glue side and a liquid crystal diffusion buffer zone closing to the liquid crystal side; thus the risk of penetration of the frame glue in a narrow side frame to the display zone and liquid crystal puncture is reduced.

The invention discloses an omnibearing puncture mechanism and a medical precise puncture system. The omnibearing puncture mechanism comprises an omnibearing rotation mechanism and a puncture device, and the omnibearing rotation mechanism is used for driving the puncture device to rotate by a set angle around a fixed point in three-dimensional space, wherein the fixed point is arranged on the extension line where the puncture direction of the puncture device 30 is located, and the set angle is an arbitrary value between 0 degree and 360 degrees. The puncture device can carry out puncture at anarbitrary angle, and is better kept away from important organs, tissue and the like, and safety of patients is guaranteed.

The embodiment of the invention provides a battery diaphragm. The diaphragm comprises a polyolefin porous diaphragm base material, wherein the polyolefin porous diaphragm base material comprises polyethylene resin, the elongation of the polyolefin porous diaphragm base material in the MD direction is greater than 120%, the polyolefin porous diaphragm base material has an elongation rate of more than 120% in the TD direction, the polyolefin porous diaphragm base material has a primary heating crystallinity of less than 65% and a secondary heating crystallinity of less than 55%, which are measured by a differential scanning calorimeter, and the difference between the primary heating crystallinity and the secondary heating crystallinity is less than 12%. The battery diaphragm has the characteristics of high elongation and low hole closing temperature, and by implementing the embodiment of the invention, the diaphragm rupture risk can be reduced when a battery cell is mechanically abused,and meanwhile, diaphragm pores are closed in advance when the battery cell is thermally abused, so the safety of the battery cell is improved. The embodiment of the invention further provides a preparation method of the battery diaphragm as well as a battery and a terminal adopting the battery diaphragm.

The invention discloses a smart puncture drainage device for extracting pleural effusion, and belongs to the medical device field. The smart puncture drainage device for extracting the pleural effusion comprises a fixed base seat and an automatic puncture drainage device which are used in matching mode. The invention aims at providing the smart puncture drainage device for extracting the pleural effusion. The fixed base seat is positioned on a puncture point, and a puncture part of a patient is fixed, and then accurate positioning of automatic puncturing can be achieved. The automatic puncture drainage device can achieve the automatic puncturing, and replaces former manual operation in traditional puncturing. By regulating the position of a positing mechanism in the automatic puncture drainage device, accurate control for the puncture depth can be achieved. The smart puncture drainage device for extracting the pleural effusion can perform smart puncturing, is accurate in puncturing, and greatly reduces risk of thoracocentesis.

The invention discloses a hot fluid injection blockage relieving and production increasing process for an immovable string. Hot fluid is injected into a stratum through thickened oil extraction equipment, and then well soaking, blowing and pump exhausting and production are conducted. According to the provided hot fluid injection blockage relieving and production increasing process for the immovable string, the operation cycle can be greatly shortened, the operation cost can be greatly reduced, pump starting and production can be timely conducted according to the condition of the output ratio of liquid, gas and oil during blowing, and the situation that the heat injection and production increasing effect is influenced due to operation of a movable string is avoided.

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a first substrate and a second substrate opposite to each other, and a liquid crystal layerclamped between the first substrate and the second substrate; the display panel comprises a display area and at least one non-display area; the non-display area comprises a through hole area and a sealant area surrounding the through hole area; a first blocking structure is arranged between the sealant area and the display area, and a second blocking area is arranged in the sealant area, wherein the distribution density of the first blocking structure is greater than or equal to the distribution density of the second blocking structure. The liquid crystal and the sealant are blocked through the first blocking structure, thereby preventing the liquid crystal from diffusing to the sealant area, reducing the liquid crystal puncture risk, preventing the sealant from entering the display area,and preventing the sealant from influencing the display quality of the display area; since the second blocking structure is located in the sealant area, the second blocking structure can increase theadhesive force of the sealant in the sealant area under a condition that the adhesive area is small in area, and a package effect of the sealant is enhanced.

The invention discloses an improved left auricle occluder. The improved left auricle occluder comprises a sealing disc and an anchoring device, wherein the sealing disc is connected with the anchoring device; at least two flow stopping membranes are arranged in the sealing disc; a portion, which is matched with a left auricle, of the anchoring device is an anchoring net; and the anchoring net is a boneless structure. The whole anchoring device is a boneless structure. The anchoring device is knitted by metal wires, a far end of the anchoring device is in the shape of an opening, and a near end of the anchoring device is tucked, is connected with the sealing disc and is in the shape of a conical net; the far end of the anchoring device is opened and turned up towards the near end to form the anchoring net; and the anchoring net surrounds the conical net. By the improved left auricle occluder, a left auricle opening can be occluded in a multi-layered manner, force is uniformly distributed in the left auricle during anchoring, local stress concentration is eliminated, repeated release can be implemented, and the left auricle opening can be occluded effectively and reliably.

The invention discloses a bone marrow puncture needle, which comprises a puncture needle body, a semicircular angle frame, a sleeve, a fixing plate and an auxiliary plate, wherein the puncture needle body is composed of an outer sleeve, a needle core and a needle handle; a needle core fixing clamping groove is formed in the upper part of the needle handle; a needle core handle is arranged at the top of the needle core; a needle core fixing clamping core is arranged between the needle core handle and the needle core; a dial and an arc-shaped clamping groove are arranged on the semicircular angle frame; the sleeve is sleeved with the outer pipe casing of the puncture needle body by virtue of a screw thread; the sleeve is connected to a nut by virtue of a shaft; the shaft runs through the arc-shaped clamping groove in the semicircular angle frame; the puncture needle body is connected to the semicircular angle frame by virtue of the sleeve; a puncture hole is formed in the fixing plate; and the fixing plate is movably connected to the auxiliary plate. By virtue of the semicircular angle frame, medical personnel can observe a puncture angle when carrying out puncture, so as to reduce puncture risk; by adding a scale mark on the outer pipe casing, the length of inserting needle can be accurately mastered, and force can be controlled more easily especially for patients with relatively hard or relatively loose bone, so as to avoid injury on tissues surrounding a punctured part.

The invention provides an ultra-violet curing device and a box adhesive curing method. By arranging a luminous mechanism at the lower portion of a bearing machine platform, the ultra-violet curing device can conduct ultra-violet irradiation curing on a liquid crystal display panel to be cured from the lower portion of the liquid crystal display panel to be cured, in the curing process, the liquid crystal display panel to be cured maintains a state that a CF base plate is above a TFT base plate, a turnover motion of the liquid crystal display panel to be cured in the transmission process between a vacuum pair group device and the ultra-violet curing device is avoided, the transmission time can be saved, the production capacity can be improved, meanwhile the risk of liquid crystal puncture in the transmission process can be reduced, the transmission device can be simplified, and the equipment cost can be saved. According to the box adhesive curing method, by adopting the ultra-violet curing device, the turnover motion of the liquid crystal display panel to be cured in the transmission process between the vacuum pair group device and the ultra-violet curing device is avoided, the transmission time can be saved, the production capacity can be improved, and meanwhile the risk of liquid crystal puncture in the transmission process can be reduced.

The invention belongs to the field of medical apparatuses, and particularly relates to a tactile sensation visualization puncturing surgery navigation system based on an augment reality technique. According to the tactile sensation visualized puncturing surgery navigation system disclosed by the invention, a six-freedom-degree mechanics sensor is connected with a puncture needle to obtain puncturing mechanics data when the puncture needle punctures parenchyma; after being analyzed and treated by a multi-dimensional force measuring data analyzer, the puncturing mechanics data is transmitted toan Unity3D game engine of a computer client through wireless driving for data visualization displaying; visualization display comparison is performed between the analyzed and treated puncturing mechanics data and a parenchyma force-time mathematical model obtained after simulation of repeated same puncturing experimental data, so that a doctor can more intuitively observe the differences between the analyzed and treated puncturing mechanics data and the parenchyma force-time mathematical model obtained after simulation of repeated same puncturing experimental data, when the difference value ofthe two puncturing force is larger than a set threshold, the situation that the puncture needle punctures a blood vessel or necrosis tissue can be judged; and puncturing paths can be changed in timeor puncturing can be stopped for sampling referring to the visual sense visualization navigation, so that the puncturing precision can be improved, and the puncturing error rate can be reduced.

The invention discloses disinfection and classification equipment for the anesthesiology department. The disinfection and classification equipment comprises a classification box, the rear portion of the classification box is connected with a cleaning box through bolts, the bottom of the classification box and the bottom of the cleaning box are connected with a drying box and a disinfection box through bolts correspondingly, and a plurality of supporting plates are inserted into the inner wall of the classification box; and a water outlet pipe is communicated with the interior of the cleaning box, a transmission mechanism is arranged at the front part of the cleaning box, connecting mechanisms are arranged at the rear parts of the cleaning box and the disinfection box, and a drying mechanism is arranged in the drying box. According to the disinfection and classification equipment, used needles and syringes can be separated and classified through the classification box, and then the syringes can be classified again according to the sizes during drying, so that manual separation by medical staff is not needed; and the separated syringes can be automatically cleaned and transported into the disinfection box through the transmission mechanism to be disinfected, so that manual cleaning and transportation by the medical personnel are not needed, the labor intensity is reduced, and theworking efficiency is improved.

The invention provides a liquid crystal box lens panel and a liquid crystal display device. The liquid crystal box lens panel comprises a first substrate, and an upper electrode is arranged on the surface of the first substrate; a second substrate is arranged relative to the first substrate; a first photo spacer is arranged between the first substrate and the second substrate to form a gap; edges of the first substrate and the second substrate are sealed to form a sealed area; the surface of the second substrate is provided with a metal trace in the sealed area, the surface of the metal trace is provided with a passivation layer with a via hole, and a transparent electrode penetrates through the via hole to be electrically connected with the metal trace; and a second photo spacer is arranged on the surface of the passivation layer and / or the surface of the upper electrode to reduce the width of a gap of the sealed area, and the gap of the sealed area is filled with a sealant. The invention has the following advantages: when a liquid crystal display panel production line is adopted to manufacture the liquid crystal box lens panel, the diameters of fiber balls are not increased; a sealant material is saved, and the discharge capability of a sealant spray nozzle of equipment is not increased; and the contact area between a liquid crystal and the sealant is reduced, and a puncture risk is reduced.

The present invention discloses a trocar-guided disposable central venous puncture needle. The trocar-guided disposable central venous puncture needle comprises a puncture needle core, a Y-shaped sleeve tube and a heparin cap, the puncture needle core is attached to the inner wall of the Y-shaped sleeve tube, the bottom end of the puncture needle core is provided with a transparent tube cavity capable of enabling blood to flow back, the bottom end of the transparent tube cavity communicates with the detachable heparin cap or a disposable injector, a guide wire channel is arranged on the side of the bottom seat of the Y-shaped sleeve tube, and the guide wire channel is connected with a guide wire booster. The present invention relates to the technical field of medical devices. The trocar-guided disposable central venous puncture needle is reasonable in design, easy in operation, high in security, greatly improves a success rate of puncture through the structure cooperation of the Y-shaped sleeve tube, avoids failure of guide wire placement due to body movement of patients and improper fixing by operators, reduces the technical difficulties of the operators, simultaneously, reduces vascular endothelial injury and direct puncture of blood vessels caused by sharp terminals of steel needles, and reduces injury and risks of patients.

The invention provides a secondary battery, which comprises an electrode assembly, a packaging bag, an electrode lead and an insulating piece, wherein the electrode assembly is accommodated in the packaging bag, the edge of the packaging bag is provided with a sealing part, and the electrode lead is connected to the electrode assembly and passes through the sealing part. The sealing part includesa main body area, a first step area and a first transition area, wherein the first step area is located on both sides of the electrode lead along the thickness direction, the main body area and the first transition area are located at the same side of the first step area along the width direction, and the first transition area is connected between the first step area and the main body area. The insulating piece separates the sealing part and the electrode lead. The insulating piece includes a first portion, and the first portion is located between the electrode lead and the first step area. The sum of the thickness of the first step area, the first portion and the electrode lead is H1, and the thickness of the main body area is H2, wherein H1>H2. The minimum distance between the electrodelead and the outer surface of the first transition area is D1, and the minimum distance between the electrode lead and the outer surface of the first step area is D2, wherein D1>=D2.

The invention provides a carbon nanotube conductive ball as well as a preparation method and application thereof. The preparation method comprises the steps that carbon nanotubes are firstly mixed with a thermoplastic resin to obtain a carbon nanotube-doped thermoplastic resin, and then the carbon nanotube-doped thermoplastic resin is used to cove mother balls to prepare the carbon nanotube conductive ball. The carbon nanotube conductive ball can reduce the risk of ACP or ACA / ACF level conduction when the carbon nanotube conductive ball is applied to anisotropic conductive adhesive.

The invention discloses a CT guided percutaneous puncture body surface locator, which comprises a dual-layer fixed mount, wherein a plurality of lower layer metal location wires, which are equally spaced, are arranged on the lower layer of the dual-layer fixed mount; crawler-type fixed strips are fixedly arranged on both sides of the upper layer of the dual-layer fixed mount; upper layer metal location wires, which are identical to the lower layer metal location wires in quantity and are in correspondence to the lower layer metal location wires one by one, are arranged between the crawler-type fixed strips on two sides; sliding blocks are arranged on both the upper layer metal location wires and the lower layer metal location wires; the bottoms of the crawler-type fixed strips are of gear-shaped structures; angle regulating wheels are arranged at four ends of a mount body of the dual-layer fixed mount; a main body structure of each angle regulating wheel is a gear; and the gears can be mutually matched with continuous single toothed structures at the bottoms of the crawler-type fixed strips. The body surface locator disclosed by the invention is simple and skillful in structure, relatively simple in structural setting and easy for material preparation and manufacturing; and the body surface locator, with popularization and application, can bring about convenience to medical personnel, relieve pain of patients and reduce puncture risks.

The invention discloses a liquid crystal dripping nozzle, a liquid crystal dripping device and a liquid crystal dripping method. The liquid crystal dripping nozzle comprises a main dropping nozzle and a plurality of auxiliary dripping nozzles, and the auxiliary dripping nozzles for liquid crystal dripping in marginal areas are arranged around the main dripping nozzle for liquid crystal dripping in a central area. The liquid crystal dripping device comprises the liquid crystal dripping nozzle, a support and a disperser arranged on the support, and the liquid crystal dripping nozzle is arranged on an operating end face of the disperser. The liquid crystal dripping method includes: performing liquid crystal dripping in the central area of a liquid crystal pattern through the main dripping nozzle; switching the main dripping nozzle with the auxiliary dripping nozzles; performing liquid crystal dripping in the marginal areas of the liquid crystal pattern through the auxiliary dripping nozzles, wherein the total liquid crystal dripping amount of the auxiliary dripping nozzles is equal to the liquid crystal dripping amount of the main dripping nozzle. The liquid crystal dripping nozzle, the liquid crystal dripping device and the liquid crystal dripping method can be applied to the technical field of display to effectively solve problems of corner light leakage and proneness to puncture of existing dripping devices.

The invention discloses an abdominal wall puncture device for a laparoscope based on photo-excitation laser detection positioning. The puncture device is characterized in that a puncture needle is arranged in a sleeve, wherein a detection unit composed of a light transmitter, a light receiver and a light baffle is arranged at the front end of the puncture needle; and a control center and an early warning signal generator are arranged at the tail part of the puncture needle, and a connection line is connected between the detection unit and the control center and the early warning signal generator. In the invention, a central controller judges whether the light intensity received by the light receiver is lower than a set threshold and starts the early warning signal generator if the light intensity is lower than the set threshold to prompt puncture success, and thus possible injuries of organs and blood vessels caused by blind puncture are avoided.

The invention provides a battery module and electronic equipment thereof. The battery module comprises a battery cell, a battery protection plate and a battery packaging film, wherein the battery cellcomprises a first surface, a second surface, and a side surface connected with the first surface and the second surface; the battery protection plate is arranged adjacent to the side surface of the battery cell; the distance between the battery protection plate and the first surface of the battery cell is smaller than the distance between the battery protection plate and the second surface of thebattery cell; all electronic devices on the battery protection plate are arranged on one side, far away from the first surface of the battery cell, of the battery protection plate; and the battery packaging film wraps and packages the battery cell and the battery protection plate. According to the structure of the battery module, the packaging position of the battery protection plate is reasonably arranged, so that the risk that the battery packaging film is punctured can be reduced, and the reliability of the whole electronic equipment product is further improved.

The invention belongs to the technical field of medical equipment, and specifically relates to a puncture device for abdominal cavity operation in gastrointestinal surgery. The device comprises a support plate, a sleeve, and a puncture rod; a mounting groove is arranged in the middle of the support plate; adjustment rotor blocks are evenly arranged inside the mounting groove; the same sleeve is inthreaded connection among the adjustment rotor blocks together; a stepped mounting hole is arranged inside thee sleeve; a rotating block is fixed connected to the inside of the stepped mounting hole;an adjustment hole is arranged inside the rotating block; and the same puncture rod is inserted between the stepped mounting hole and the adjustment hole. According to the present invention, the support-type abdominal puncture operation is effectively realized by the device, the problems that in the direct puncture process, doctors need to sense whether is in place through the sense of vacuum failure, and the puncture technique difficulty and the operation risk are high, are solved, slow puncture operation is realized through a progressive spiral structure, the structure is simple, and the risk of puncture is greatly reduced.

The invention discloses a modular apron board pile shoe of a self-elevating drilling platform. The modular apron board pile shoe is characterized by comprising a pile shoe body and a plurality of apron board modules uniformly distributed on the outer side of the pile shoe body at intervals, wherein each apron board module comprises an apron board connector connected to the outer side of the pile shoe body and an apron board main body connected to the bottom of the apron board connector, the apron board main body is of a closed structure or a semi-closed structure, and the lowest point of the apron board main body is lower than the lowest point of the pile shoe body. The apron board main bodies in the apron board modules are inserted into a hard soil layer before the pile shoe body, so that a hard-upper-layer and soft-lower-layer egg shell stratum can be damaged in advance, namely the structure of the hard soil layer is damaged, the bearing capacity of a foundation is reduced, and the puncture risk in the pile inserting process is reduced; and gaps exist between the apron board modules, soil at the bottom of the pile shoe body is extruded and then discharged from the gaps between the apron board modules, a soil backflow channel is formed, and the influence of the apron board modules on ballast in a soft soil layer is reduced.

The invention relates to a peripheral vein transfusion catheter, and belongs to the field of the medical technology. The peripheral vein transfusion catheter comprises a body tube, a liquid medicine transfusion and injection connector and a connecting device, wherein the body tube is connected with the liquid medicine transfusion and injection connector through the connecting device, the connecting device comprises a combined handle and an extension tube, the front end of the combined handle is connected with the body tube, the rear end of the combined handle is connected with the liquid medicine transfusion and injection connector through the extension tube, and a water-stopping clamp is arranged on the extension tube. The peripheral vein transfusion catheter can be directly used as an indwelling catheter at the basilic vein, the cephalic vein, the median cubital vein and the like, can carry out puncture under direct vision, is high in success rate, is small in trauma, enables hemostasis to be easy, reduces the infection probability, enables a patient to feel safe, and is accepted easily.

The invention discloses a soft-pack power battery aluminum-plastic film slitting device and method. The soft-pack power battery aluminum-plastic film slitting device includes slitting blades, a bladefixing fixture and a sliding rod, and the slitting blades are fixedly installed on the blade fixing fixture; and the soft-pack power battery aluminum-plastic film is characterized in that the blade fixing fixture is slidably installed on the sliding rod and slides back and forth under restraint of the sliding rod, the slitting blades are provided with arc-shaped cutting edges, and under the condition that an aluminum-plastic film is not parallel to the horizontal plane through the arc-shaped cutting edges, the arc-shaped cutting edges are at any contact point with the edge of the aluminum-plastic film and remains vertical or nearly vertical to the edge of the aluminum-plastic film. According to the soft-pack power battery aluminum-plastic film slitting device and method, in the transverseslitting direction, the single circular arc blades are arranged on the left and right parts of the aluminum-plastic film for slitting from the single side direction, metal trailing due to shear dislocation is avoided, the puncture risks of a nylon layer and a CPP heat sealing layer is lowered, the polygonal voltage of a battery is small, the risk of leakage is greatly lowered, the slitting sectionis smooth, and the phenomenon of oxidation stratification of the edge of the aluminum-plastic film can be effectively avoided.

The invention discloses a CT guided percutaneous puncture body surface locator, which comprises a dual-layer fixed mount, wherein a plurality of lower layer metal location wires, which are equally spaced, are arranged on the lower layer of the dual-layer fixed mount; crawler-type fixed strips are fixedly arranged on both sides of the upper layer of the dual-layer fixed mount; upper layer metal location wires, which are identical to the lower layer metal location wires in quantity and are in correspondence to the lower layer metal location wires one by one, are arranged between the crawler-type fixed strips on two sides; sliding blocks are arranged on both the upper layer metal location wires and the lower layer metal location wires; the bottoms of the crawler-type fixed strips are of gear-shaped structures; angle regulating wheels are arranged at four ends of a mount body of the dual-layer fixed mount; a main body structure of each angle regulating wheel is a gear; and the gears can be mutually matched with continuous single toothed structures at the bottoms of the crawler-type fixed strips. The body surface locator disclosed by the invention is simple and skillful in structure, relatively simple in structural setting and easy for material preparation and manufacturing; and the body surface locator, with popularization and application, can bring about convenience to medical personnel, relieve pain of patients and reduce puncture risks.

The invention discloses a fast-disassembly formwork fixing system, mainly comprising a plurality of stitching units which are closely, regularly and fixedly stitched together. Each stitching unit includes a plurality of primary reinforcement ribs arranged according to the shape of Everest and a plurality of secondary reinforcement ribs longitudinally arranged in the upper parts of the primary reinforcement ribs. A fast-disassembly formwork is arranged above the secondary reinforcement ribs. A number of fixing pins distributed regularly are embedded into the fast-disassembly formwork, the nut ends of the fixing pins are exposed on the upper surface of the quick-disassembly formwork, and the pin head ends penetrate the quick-disassembly formwork to be fixedly equipped with elastic rubber bands. Hooks matching the elastic rubber bands are arranged in the lower part of the quick-disassembly formwork. The hooks hook at least one elastic rubber band to fix the quick-disassembly formwork andthe secondary reinforcement ribs together. A clamp slot is arranged in the top of the hook end of each hook. The invention provides a fast-disassembly formwork fixing system, which makes fast-disassembly formworks fixed together without using too much wood squares and iron nails, greatly reduces the fixing cost of fast-disassembly formworks, and reduces the risk of workers being pinned by iron nails. The fast-disassembly formwork fixing system is simple in structure, convenient to use and suitable for wide promotion and application.

The invention discloses a protective device for removing flashing of a rubber sealing ring, relates to the field of sealing rings, and comprises a workbench, which is placed on the ground, and the upper end surface of the workbench is provided with a protective groove, and the upper end surface of the workbench is divided by the protective groove. It is the working area and the non-working area, and the working area is equipped with a deburring device; the panel is pre-embedded on the ground, and the panel is provided with an inner groove; the support platform is slidably connected with the inner groove, and the support platform is located on the The front of the worktable is used to support the human body; one end of the spring is fixed on the bottom surface of the support platform, and the other end of the spring is fixed on the bottom of the inner tank; the protective plate is slidably connected with the protective tank; the driving mechanism is located at the working In the platform, it is connected with the power of the protective plate; the induction mechanism is electrically connected with the driving mechanism; through the present invention, when the staff removes the flash, the work area for removing the flash is separated from other areas, so that it is difficult for the body to Being touched by other people coming and going reduces the risk of staff being stuck by needles.