544 results about "Needle puncture" patented technology

The invention discloses an auxiliary device for preventing an injector from needling. The auxiliary device aims to solve the problems that an existing passive protection device is prone to being started by mistake, a push rod is prone to inclining, protection is not achieved after injection, and adaptability is poor. The device comprises an outer shell, a compression spring, an inner shell, a disposable prefilled syringe and a push rod. The shell is an external support and is provided with a guide bone position, an elastic step, a guide channel, an elastic buckle and the like; the inner shell is assembled in the outer shell, bears the injector and is connected with the compression spring; the push rod is in threaded connection with the syringe piston, and the actuating rod is inserted into the shell guide channel. The device realizes single-hand operation and automatic protection, does not need an additional activation step, is adaptive to a medicine production process, effectively reduces the risk of pricking injury, and avoids waste of liquid medicine. And the clinical use safety and the operation convenience are improved.

The invention relates to the technical field of intelligent recognition, and discloses an acupoint acupuncture guidance method and system based on a knowledge graph, and the method comprises the steps: obtaining a real-time three-dimensional coordinate of a target acupoint on a target object through employing a multi-mode positioning technology; the physical sign data and disease information of the target object are obtained, an improved random forest algorithm is used for correcting standard parameters in the acupoint knowledge graph, an acupuncture scheme is generated, the acupuncture device is controlled to select a target needling instrument from the storage bin based on the acupuncture scheme, and acupuncture operation is executed; monitoring needle tip pressure, needle inserting depth and angle deviation in real time; when parameter deviation or abnormal biological signals existing in the needle point pressure, the needle inserting depth and the angle deviation are detected, the actuating mechanism is guided and driven to conduct self-adaptive adjustment till the needling operation is completed. Through the implementation of the invention, the problem that the related technology cannot meet the requirements of modern acupuncture treatment with precision, standardization and safety is solved.

The present disclosure provides an interventional needle fixing device for tumor clinical treatment, including an interventional needle adjustment mechanism. The interventional needle adjustment mechanism includes a roll adjustment assembly, a pitch adjustment assembly, a rotating assembly and a needle tube assembly. In the present disclosure, by arranging the interventional needle adjustment mechanism, when facing tumor lesions in different positions, doctors make the needle tube assembly realize left or right roll adjustment in a horizontal direction through the roll adjustment assembly, thereby accurately aligning a target area. At the same time, the pitch adjustment assembly can control the needle tube assembly to pitch upward or downward in a vertical direction, thereby meeting the diversified requirements of interventional needle angles in various complex surgical scenes, and improving the flexibility and accuracy of interventional needle puncture.

The present invention provides a method of assembling and packaging a medical needle device having a double ended needle (116), which comprises a container (170) having a closed end and an open end to receive a spring activated safety needle device (110) to provide passive needlestick protection to a non-patient end (118) of the needle (116). The method comprises performing the independent steps of (i) assembling a first sub-assembly (101) by mounting a shield (114) to a tubular housing (130) to form a telescopic device (104) and engaging the telescopic device (104) within the container (170), and (ii) assembling a second sub-assembly (102) by securing the double ended needle (116) within the needle mount (140), wherein the mounting element is provided on an external surface of the needle mount (140). The tubular housing (130) comprises (a) a mounting member on an internal surface to engage a mounting element of the needle mount (140), and (b) a spring to urge movement of the double ended needle (116) during use to a shielding position whereat the needle (116) extends at an angle oblique to a longitudinal axis of the tubular housing (130) to place the non-patient end (118) of the needle (116) at a location adjacent to an interior wall of the tubular housing (130). The method further comprises inserting the second sub-assembly (102) into the tubular housing (130) to secure the mounting element of the needle mount (140) to the mounting member of the tubular housing (130) to unite the second sub-assembly (102) to the first sub-assembly (101) to enable the spring to urge movement of the double ended needle (116) during use to a shielding position. Finally, the method comprises applying the closure a label (124) over the open end of the container (170) to seal the medical needle device 110 within the container (170).

The invention provides an automatic injection device which comprises a needle bin system, a needle head system, a needle head system, a needle head system, a needle head system, a needle head system and a needle head system, the driving system is detachably connected with the needle bin system, the driving system is provided with a first-stage driving mechanism and a second-stage driving mechanism, the first-stage driving mechanism is used for driving an injection needle of the pre-filling injector to pierce an injection part, and the second-stage driving mechanism is used for driving an injection push rod of the pre-filling injector to move; and the liquid medicine is injected into the injection part through the injection needle. The automatic injection device can be repeatedly used, more importantly, the automatic injection device is further provided with the first-stage driving mechanism and the second-stage driving mechanism, the first-stage driving mechanism is used for puncturing the injection needle on the pre-filling injector into the body by a certain depth, and then the second-stage driving mechanism drives the injection push rod of the pre-filling injector to move; all the liquid medicine is injected into the injection part, time sequence control is achieved, and therefore the liquid medicine injection effect can be ensured.

The utility model provides an endoscope clamping type arc-shaped needle puncture device, which is characterized in that a clamping control piece controls a matching space of a locking piece to be tightened, so that the locking piece is fixedly connected with an arc-shaped suture needle; the rotating control piece controls the connecting piece to rotate relative to the mounting frame from the initial position, and the connecting piece drives the arc-shaped suture needle to rotate relative to the shell so that the arc-shaped suture needle can penetrate through the mucosal tissue of the human body. After the connecting piece moves to the final position, reverse operation is carried out to enable the connecting piece to return to the initial position, and the operation is repeated for multiple times so that the arc-shaped suture needle can repeatedly rotate by 360 degrees to suture the mucosal tissue of the human body; due to the fact that the locking piece can be fixed to any position of the arc-shaped suture needle, the arc-shaped suture needle can be driven to rotate by any angle, the precision requirement for matching between the locking piece and the arc-shaped suture needle is lowered, and when the arc-shaped suture needle punctures a hard human mucosa tissue and is blocked or the rotating stroke is not enough, the arc-shaped suture needle can be driven to rotate by any angle. The locking piece can timely adjust the fixed position point so as to provide enough puncture force and rotation stroke for the arc-shaped suture needle.

The embodiment of the invention provides a detachable detection device and a needle assistor, the detection device is used for detecting blood glucose, the detection device comprises a detection assembly, a sensor assembly and a needling assembly, the detection assembly comprises a flat shell, the outer wall of the bottom of the flat shell is sunken inwards to form a containing cavity, the sensor assembly comprises a base and a probe, the base is provided with a second via hole, and the probe is arranged in the containing cavity. The base is detachably clamped in the containing cavity, part of the probe is located in the base, part of the probe extends out of the hole wall of the second through hole and extends towards the side away from the detection assembly, and when the base is located in the containing cavity, the probe is electrically connected with the detection circuit board. According to the embodiment of the invention, the detection assembly and the sensor assembly are mutually detachable and can be clamped, so that only the sensor assembly is sterilized instead of the detection assembly in the sterilization process, and the influence on the detection circuit board in the detection assembly in the electromagnetic wave or irradiation sterilization process can be avoided; the product yield of the detection device is improved.

The invention provides a radiation shielding assembly, a drug vial assembly system, a method of dispensing a drug vial assembly system, and a radiopharmaceutical infusion device. The radiation shielding assembly is used for shielding a medicine bottle assembly containing radiopharmaceuticals, and the medicine bottle assembly is provided with a puncture communication piece capable of transversely moving. The shielding body is provided with a top opening, a small bottle containing cavity and a combination port, and the medicine bottle assembly is contained in the containing cavity through the top opening. The containing cavity is provided with a circumferential matching wall, the distance between the matching wall and the vertical center line is gradually decreased from the starting end to the tail end, and a moving path is provided for assembly. The medicine bottle is guided to move along the wall, and the bottom puncture communicating piece is guided to transversely move inwards and is in butt joint with the combination port when reaching the assembly completion position. After assembly is completed, the puncture communicating piece is in butt joint with the combination port. According to the invention, only one needle puncturing the top of the medicine bottle is used as an inflow channel. Needle adjustment is not needed when medicine is nearly empty, operation is simplified, and the error rate is reduced.

A right-angle needle-punching mechanism and a needle-punching device are provided. The right-angle needle-punching mechanism includes a first right-angle needle-punching assembly and a second right-angle needle-punching assembly, a position adjusting assembly configured to drive the first right-angle needle-punching assembly and the second right-angle needle-punching assembly approach or move away from the preform, and an angle adjustment assembly configured to change needle-punching angles of the first right-angle needle-punching assembly and the second right-angle needle-punching assembly. The angle adjustment assembly, the first right-angle needle-punching assembly, and the second right-angle needle-punching assembly are arranged on the position adjusting assembly. The first right-angle needle-punching assembly includes a first right-angle needle plate, the second right-angle needle-punching assembly includes a second right-angle needle plate, and the first right-angle needle plate and the second right-angle needle plate perform needle punching on respective sides of the right-angle part of the preform.

The invention relates to the field of medical instruments, and provides an injection needle device applied to an application pump and an infusion device. The injection needle device comprises a bottom plate with a limiting ring; the needle injection device comprises symmetrical clamping arms to form a slideway, and arm bottom clamping hooks are clamped with a limiting ring; the injection needle key in the slideway is fixedly connected with a hard needle; the infusion base at the bottom of the key is connected with the soft needle; the hard needle penetrates through the soft needle; buckling arms are arranged on the inner sides of the clamping arms, and the surrounding inner diameter is smaller than the outer diameter of the key; when the key is pressed, the hard needle and the soft needle puncture the skin, and the key extrudes the buckle arm to expand outwards to enable the hook to be separated from the limiting ring, so that the needle injector is automatically separated from the bottom plate. The infusion device comprises the bottom plate and an infusion base, the pump body is buckled with the bottom plate, the liquid storage tank is fixedly connected with the pump body, and an infusion tube of the liquid storage tank penetrates through the infusion base to be communicated with the soft needle. The technical problems of split assembly, secondary unlocking, step-by-step puncture and pipeline deviation of the application pump in the prior art are solved, and the effects of preassembling integration, automatic separation, synchronous puncture and leakage and vibration prevention are achieved.

The invention discloses a positive current collector with high safety performance and a preparation method thereof, the positive current collector comprises an aluminum foil base material and a safety coating coated on at least one surface of the aluminum foil base material, and the safety coating comprises lithium-containing phosphate, oxide solid electrolyte, a conductive agent and a binder in a weight part ratio of (50-95): (1-20): (1-10): (1-5). According to the positive current collector disclosed by the invention, the surface of the aluminum foil base material is coated with the safety coating containing lithium phosphate as a main component, and the coating has excellent thermal stability and mechanical strength, so that the formation of an aluminum wedge under a needling condition can be effectively inhibited, the probability of short circuit between the positive current collector and a negative electrode is reduced, and the needling safety performance of the battery is remarkably improved. Meanwhile, the oxide solid electrolyte added in the safety coating increases a lithium ion transmission channel, improves the ion diffusion rate, and further enhances the safety performance and electrochemical performance of the positive electrode current collector.

The invention provides a single-needle hemodialysis blood pipeline device which comprises a piston type container, a liftable piston plate is connected to the interior of the piston type container through a first elastic piece, an artery pot and a vein pot are arranged on one side of the piston type container and communicate with each other through a three-way pipeline, one end of the first pipeline communicates with the artery pot through a first valve, and the other end of the first pipeline communicates with the vein pot through a second valve. The blood pump is communicated with a dialyzer, one end of the dialyzer is communicated with a pipeline II, and the pipeline II is communicated with the vein pot through a valve II; the pipeline III is communicated with the pipeline I and the piston type container and is provided with a valve III; the fourth pipeline is communicated with the second pipeline and the piston type container and provided with a fourth valve, and the piston type container is further provided with a switching mechanism. According to the device, blood can be fully dialyzed only through single-needle puncture, it is ensured that the blood in the dialyzer makes full contact with the dialyzer, the toxin removing efficiency is improved, and finally full dialysis in a special scene is achieved.

The invention relates to the technical field of robots, and discloses an acupuncture robot which comprises a needle cylinder, a needle box, an electromagnet, a first cylinder, a first annular plate, a clamping block, a hollow spline shaft, a spline sleeve and a connecting rod. During use, the electromagnets are controlled to be powered on, magnetic force can be generated, and acupuncture needles placed in the first circular grooves are attracted. Then any electromagnet is controlled to be powered off, and the acupuncture needle opposite to the electromagnet can fall into the needle cylinder under the action of gravity. And then the needle cylinder falls out from the small-opening end of the needle cylinder along the inner wall of the needle cylinder and is clamped by the clamping blocks. At the moment, the needle cylinder is controlled to move, and the clamped acupuncture needle can be punctured into the body of the patient. After the acupuncture needle is punctured and the punctured acupuncture needle is loosened, the other electromagnet is controlled to be powered off, the operation can be repeated, the other acupuncture needle is automatically discharged and clamped, the needle replacement time is shortened, and the acupuncture speed is increased.

The present application relates to the technical field of electrolysis therapeutic instrument, and proposes a kind of free puncture hemorrhoid electrolysis therapeutic instrument, including power supply, for providing conversion electric energy to the therapeutic instrument;Control handle, electrically connected with power supply, and the end is equipped with control display system, for grasping and controlling the size of current output;Therapeutic soft pad: electrically connected with power supply, and its upper surface is covered with medical gauze, and is placed in the lower surface of the thigh of the load end of patient, and the thigh skin is fully contacted with the medical gauze added with physiological saline, to form current loop;Free puncture detection expansion probe mechanism, installed on control handle, for tissue examination of anal part and free puncture contact hemorrhoid part, output micro-current.The beneficial effects of the present application are: no need for acupuncture treatment, can reduce the pain and bleeding of patient during treatment, improve the safety of treatment, and use conveniently, treatment is fast.

The invention relates to the technical field related to medical instruments, and discloses a self-adaptive device capable of automatically enhancing and maintaining the needling feeling of a needling remaining needle, which comprises a needling execution device used for intervening an acupuncture needle which is punctured into the skin and generates the needling feeling; the acupuncture control system is used for recording parameter changes in the needle feeling maintaining process; the installation mechanisms are installed on the two sides of the needling execution device and comprise hook columns and fixing mechanisms, and the needling execution device can be fixed through cooperation of the hook columns and the fixing mechanisms. According to the self-adaptive device capable of automatically enhancing and maintaining the needle feeling of the acupuncture needle, axial pressure and transverse thrust are applied to the acupuncture needle which is punctured into the skin by using a preset control model through an accurate and controllable hydraulic mechanical system, so that the needle feeling is effectively enhanced and maintained for a long time; the device is far away from an electronic and electrical control system, electromagnetic interference possibly brought by electronic equipment can be effectively avoided, and the applicability and safety of the device are greatly improved.

The utility model discloses an analyte detection system, which comprises a mounting unit and an analyte detection device, an elastic pad is sleeved on an auxiliary needle at the contact position of the auxiliary needle and the analyte detection device, and when the auxiliary needle retracts, the elastic pad can press the wound caused by the auxiliary needle puncturing into the subcutaneous part. Blood is prevented from permeating into the analyte detection device and polluting the analyte detection device, so that the normal use of the analyte detection device is ensured.

The utility model relates to the technical field of blood taking needles, and discloses a blood taking needle protection device which comprises a blood taking needle, the blood taking needle is connected with a blood taking device through a hose, the right side of the blood taking needle is fixedly connected with a push piece, the upper side and the lower side of the push piece are both provided with holes, a hollow pipe is arranged on the outer side of the blood taking needle, and the hollow pipe is connected with the blood taking device. An opening is formed in the right side of the hollow pipe, the right side of the push piece penetrates through the opening, fixing columns are fixedly connected to the upper end and the lower end of the right side of the hollow pipe, connecting ropes are fixedly connected to the right ends of the fixing columns, and blocking blocks are fixedly connected to the right ends of the connecting ropes. According to the blood taking device, the sliding blocks are in sliding connection with the corresponding sliding grooves and matched with the pushing pieces to penetrate through the openings to slide, so that the pushing pieces drive the blood taking needles to be inserted into subcutaneous tissue for blood taking, the blocking blocks are matched with the corresponding holes to be clamped, the blood taking needles are protected by the hollow pipe after blood taking, infection caused by pricking of the blood taking needles is avoided, and later classification treatment is facilitated.

The utility model provides an endoscope needle tube puncturing and suturing device. The endoscope needle tube puncturing and suturing device comprises a mounting shell, a needle tube assembly, a driving assembly and a suturing assembly. The control piece controls the driving piece to rotate relative to the mounting shell, and the driving piece drives the connecting piece to move relative to the mounting shell, so that the connecting piece drives the arc-shaped puncture needle tube to rotate relative to the mounting shell. The control piece directly drives the arc-shaped puncture needle tube to be opposite to the mounting shell through matching of the driving piece and the connecting piece. The influence of the length of the needle tube assembly and the elastic tube, the stress bending of the elastic tube and the friction between the needle tube assembly and the mounting shell on the puncture force borne by the arc-shaped puncture needle tube is small, that is, the acting force of the control piece is effectively converted into the puncture force of the arc-shaped puncture needle tube through the matching of the driving piece and the connecting piece; and the arc-shaped puncture needle tube has enough puncture force, so that the arc-shaped puncture needle tube can quickly penetrate through human tissues, and the suture efficiency and implementation reliability of the product are improved.

The application relates to an electroencephalogram monitoring sensor with intradermal needles, comprising an electroencephalogram monitoring sensor body with a plurality of electrode pieces, one or more of the electrode pieces being provided with an intradermal needle, the intradermal needle being fixed to the middle part of the inner side or the outer side of the electrode piece and being electrically connected with the electrode piece; when the electroencephalogram monitoring sensor body is pasted on the forehead of a patient, the intradermal needle penetrates into the subcutaneous tissue; the electroencephalogram monitoring sensor with the intradermal needles can acquire electroencephalogram biological signals in a more direct mode, can better avoid the problem of poor adhesion when the electroencephalogram monitoring sensor is pasted on the forehead of a patient, and has certain application prospect.

The invention relates to an inclined tip flexible needle puncture device capable of adjusting a needle entering angle based on worm and gear transmission, which belongs to the field of medical instruments and comprises a position adjusting mechanism, a feeding mechanism, a hexagonal supporting mechanism, a front posture adjusting mechanism and an inclined tip flexible needle. Before puncture, the multi-angle inclined tip flexible needle can be adjusted to puncture a needle entering point, so that multiple positions can be punctured; in the puncture process, the inclined tip flexible needle is supported by adopting the hexagonal supporting mechanism, and the needle shaft of the inclined tip flexible needle can be effectively prevented from buckling deformation in the puncture process; wherein the first motor and the second motor move in a combined mode to adjust the puncture position of the inclined tip flexible needle, the third motor controls needle inserting and needle withdrawing of the puncture device, the fourth motor controls rotation of the inclined tip flexible needle, and the fifth motor and the sixth motor move in a combined mode to achieve adjustment of the needle inserting angle of the inclined tip flexible needle. The posture of the needle tip is easier to adjust to complete puncture of a target spot, and the stability, accuracy and safety of puncture are further improved.

The polygonal pyramid type needling needle of the pre-oxidized fiber felt comprises a needle handle and a needling portion, the needle handle is matched with a needle penetrating hole in a needle plate, the needling portion comprises a needle rod and a needle tip, the needle rod forms a barb inwards from the circumferential direction, particularly, the needle rod is in a polygonal prism shape, the barb is concaved inwards from the edge of the polygonal prism, the barb faces the needle tip and is a lower barb, and the needle tip faces the lower barb. The barbs are upper barbs facing the needle handle, the lower barbs and the upper barbs are arranged around the center of the polygon prism in an array mode, and the lower barbs and the upper barbs drive pre-oxidized fibers to be interwoven up and down respectively in the needling process and the back needling process of the needling needle. On one hand, on the basis of bidirectional movement formed by the upper barb and the lower barb, needling and back needling are interwoven, and needling efficiency and quality are greatly improved; on the other hand, the contact area is changed based on the prism shape, and the offset probability during upper and lower needling is reduced based on the upper and lower barbs in the array layout, so that the needle breaking rate is reduced.

Exemplary embodiments described herein are directed to a vascular access catheter device with an inline needle, the device having a needle portion that is linearly displaceable relative to a catheter portion, and vice versa, and to methods of performing blood transfer procedures using said device. Retraction of the needle portion relative to the catheter portion allows the catheter of the catheter portion to cover the needle tip during a blood transfer procedure, thereby preventing needle damage to a fistula / graft or peripheral vessel of a patient, as well as possible needle stick injuries to health care workers during removal / disposal of a used device. Because the needle still remains largely within the catheter after retraction, there is no risk of catheter collapse, kinking, etc., during use, which could compromise blood flow during a hemodialysis or other vascular access procedure.

The utility model relates to the technical field of pu (Poly Urethane) bubble sheet processing, in particular to an automatic continuous pu bubble sheet feeding mechanism capable of effectively controlling materials, which comprises a rack, a lifting translation unit, a plurality of groups of needling components, a conveying component and two groups of material supporting components, each group of needling component comprises a connecting seat, two spring rods, a needling seat and two groups of needling pieces, the lifting translation unit is arranged on the upper surface of the rack, the connecting base is fixedly connected with the lifting translation unit, one ends of the two spring rods are connected with the connecting base, the other ends of the two spring rods are connected with the needling base, the two sets of needling pieces are symmetrically arranged on the two sides of the needling base, and the conveying assembly is arranged on one side of the rack. By means of the arrangement, the PU bubble piece feeding device can automatically feed PU bubble pieces, the production efficiency is improved, the labor cost is saved, and meanwhile the pollution rate of the bubble pieces is reduced.

The utility model relates to the technical field of medical instruments, in particular to a double-cavity urinary catheter with a positive-pressure connector, which comprises a urinary catheter, a drainage tube and a breather tube are arranged at the tail end of the urinary catheter in a forked manner, a flushing branch tube is arranged on the drainage tube, and the positive-pressure connector is arranged at the tail end of the flushing branch tube; a sealing cover is arranged on the positive pressure connector and connected with the positive pressure connector through a connecting structure. A reinforcing fastener can be arranged at the bifurcated section of the catheter, so that the phenomenon that the catheter is bent at the bifurcated section due to the fact that the drainage tube with the weight increased due to the additional arrangement of the positive pressure connector is influenced by gravity is avoided, and the situation that the flushing and drainage effects are influenced due to the fact that a tube cavity is narrow due to bending is prevented; according to the utility model, the mode that the positive pressure connector is connected with the infusion tube replaces the traditional needle puncture infusion mode to wash the bladder, so that the catheter is prevented from being damaged, and the risk that medical personnel are injured by a needle is also prevented from the source.

The invention relates to the field of in-vivo temperature measurement, in particular to a needling type internal organ temperature detection shell and device, which comprises a cylinder body, a needle head and a reading instrument positioned on the cylinder body, the needle head is connected to the bottom end of the cylinder body, a screw hole communicated with the needle head is formed in the bottom of the cylinder body, and a vertical cavity is formed in the cylinder body; a pressing piece is slidably connected to the cylinder. According to the scheme, the problem that the temperature of internal organs in the body cannot be measured at present is solved.

The invention relates to the technical field of medical care, and discloses a chemotherapy nursing device for medical oncology, comprising: an infusion seat for infusion; the lower annular plate is arranged at the top of the infusion seat; the upper ring plate is arranged at the top of the lower ring plate; the diaphragm is arranged in the upper annular plate; the inner sealing piece is arranged on the inner side of the lower annular plate and used for connecting the lower annular plate with the inner wall of the upper annular plate; and the outer sealing piece is arranged on the outer side of the lower annular plate. Positioning of the upper annular plate by a positioning assembly is omitted, so that the position of the upper annular plate can be adjusted, the position of the diaphragm can be adjusted, the central needle inserting position of the diaphragm can avoid a disease skin area, normal needle inserting can be guaranteed, the upper annular plate is heated through a heating ring, and the needle inserting efficiency is improved. And heat is transferred to the skin, so that the skin cannot be tightened due to coldness, and the upper ring plate can be easily pushed subsequently.

The invention provides an arm fixing device for hemodialysis in the nephrology department and a blood leakage prevention method, belongs to the technical field of medical instruments, and aims to solve the technical problem that blood leakage is likely to occur in the hemodialysis treatment process in the prior art. Comprising a needle frame, a fixing band and a locking fastener, the needle frame comprises a seat body and a cover body which are buckled, the seat body is provided with a vertically-penetrating needle head cavity and a needle body cavity laterally penetrating into the needle head cavity, the needle body cavity is provided with a needle handle fixing structure, a cover body cavity is formed in the position, corresponding to the needle head cavity, of the cover body, a transparent plate is arranged on the outer side of the cover body cavity, and a transparent elastic film is arranged on the inner side of the cover body cavity. The cover body is provided with a self-sealing interface which is communicated with the transparent plate and the elastic film interlayer; the two fixing belts are fixedly connected to the two sides of the base body respectively, and the lock catch piece is fixedly connected with the outer ends of the two fixing belts. And a gap at an acupuncture position caused by hand movement during dialysis is effectively prevented, the risk of blood leakage is greatly reduced, and the treatment safety is guaranteed.

The utility model relates to the technical field of medical instruments, in particular to a structure for preventing an infusion port needle from being punctured, which comprises a supporting tube and is characterized in that the lower end of the supporting tube is fixedly connected with two arc-shaped plates which are symmetrically arranged, the lower ends of the arc-shaped plates are fixedly connected with a pressing plate, and the lower end of the pressing plate is fixedly connected with a rubber pad. A needle cylinder sleeve is connected into the supporting pipe in a sliding mode. The needle cylinder sleeve comprises a containing cylinder, a containing groove with a conical bottom is formed in the containing cylinder, two pressing plates are fixedly connected to the lower end of the containing cylinder, and the containing cylinder is further connected into the supporting pipe in a sliding mode through an elastic assembly. The arc-shaped plate is used for holding, the needle head can be prevented from stabbing an injection person, the needle head can be limited through the long groove and the pressing plate, the needle head is prevented from being bent, the needle cylinder sleeve pressing plate is rotated to be clamped in the clamping groove for positioning, injection is facilitated, the needle head can be directly popped out through the spring after injection, and the needle head can be safely pulled out.

The invention relates to the technical field of cable drainage, and discloses a cable drainage grounding device for a power system, which comprises an outer shell, a clamping block and a cable clamping piece, a cable main body is clamped in the cable clamping piece, and a puncture mechanism is arranged outside the outer shell; the puncture mechanism comprises an outer sleeve shell and fixing rings, the fixing rings are fixedly connected to the two sides of the outer shell, and the outer sleeve shell is rotationally connected to the outer portions of the fixing rings; an ejection block is slidably connected to the interior of the fixing ring, an inner pressing block is slidably connected to the interior of the ejection block, a needling assembly is arranged in the inner pressing block, and a threaded pressing block is in threaded connection to the interior of the outer sleeve shell; the ejector pin sleeve is controlled to abut against the exterior of the cable body, the ejector pin sleeve serves as a guide rail in the puncture process of the puncture needle, it is guaranteed that the puncture needle can stably pierce an insulating layer of the cable body, the puncture needle is prevented from being bent in the puncture process, the stability of the puncture process is guaranteed, and it is guaranteed that the puncture needle can stably make contact with a conductor of the cable body.

1. Name of the product in this design: Sterile Round Needle. 2. Purpose of this design: Sterile round needle for acupuncture treatment. 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.