99 results about "Syringe needle" patented technology

A safety mechanism syringe includes a syringe, a needle, a holder, and a needle cover displaceable relatively with respect to the syringe along an axial direction of the syringe from a use position toward a protection position. The holder includes a locking portion. At least one member of the holder and the needle cover includes a protruding portion that protrudes toward the other member, and the other member includes a restriction portion that abuts on the protruding portion to restrict relative displacement of the needle cover with respect to the syringe along the axial direction of the syringe from the protection position toward the use position.

The utility model belongs to the field of medical instrument manufacturing, and particularly relates to a fixing device for disposable syringe needle machining, which comprises a device body, a door plate, a scrap suction cover, a rotating seat and a heat dissipation window are arranged on the device body, a scrap collecting cavity and a cavity are arranged in the device body, a scrap collecting box for collecting powdered scraps is placed in the scrap collecting cavity, and the rotating seat is arranged in the cavity. A cavity is formed in the device body, a fan is arranged in the cavity, a filter plate is arranged at the communicating position of the cavity and the scrap collecting cavity, the scrap suction cover communicates with the scrap collecting cavity through a scrap suction pipe and is located on the device body below the front end of the rotating base, a needle groove is formed in the rotating base and used for containing a needle head, and a supporting column is arranged on the rotating base and used for supporting the needle head. A lifting groove is formed in the supporting column, an electric lifting rod is arranged in the supporting column, and the output end of the electric lifting rod is connected with the pressing plate, powdered scraps generated in the machining process of the disposable syringe needle can be sucked and collected, and pollution to the working environment and the needle can be effectively reduced.

The utility model relates to the technical field of electronic injector needles, in particular to an electronic injector needle convenient to connect, which comprises a needle cylinder and a driving mechanism, a piston is arranged in the needle cylinder, a push rod is fixedly connected to the right end of the piston, the left end of the needle cylinder is communicated with a connector, the outer wall of the connector is sleeved with a needle seat, and the left end of the needle seat is communicated with a needle body. The inner wall of the needle seat is fixedly connected with an annular ring; the twisting block is rotated, so that the spherical limiting block enters the groove and upwards extrudes the pressed plate, the needle base and the needle head can be prevented from moving leftwards, due to the arrangement of the annular sealing gasket, the purposes of preventing liquid medicine from leaking and preventing the needle base from being separated are achieved, and the twisting block is reversely rotated to enable the spherical limiting block to be rapidly separated from the interior of the groove. And the connector is in clearance fit with the inner wall of the needle seat, so that the needle seat and the needle head can be easily taken down, and the purpose of avoiding injury to an operator and other personnel when the needle head and the needle seat are pulled out is further achieved.

The veterinary injection needle dismounting device is composed of a needle bottle (1), a needle bottle cap (2) and a needle dismounting clamp (3), the needle bottle (1) and the needle bottle cap (2) are connected together through a needle bottle thread (7) and a bottle cap thread (8), and the needle dismounting clamp (3) clamps a needle seat part of a veterinary injection needle (5). A needle tip and a needle tube at the front end of the veterinary injection needle (5) enter the needle head bottle (1) through the acute angle notch (4) of the needle head bottle cap (2) and are suspended on the upper portion, the injector (6) is separated from the veterinary injection needle (5), the needle detaching forceps (3) are loosened, the veterinary injection needle (5) falls into the needle head bottle (5) through gravity, and veterinary workers can independently operate injection and complete the work of detaching and collecting the veterinary injection needle (6). A large amount of labor cost is saved, the epidemic prevention treatment quality is improved, and animal epidemic disease transmission is reduced.

The sample vaporization chamber (1) for a gas chromatograph has a housing (2) with a built-in heater (12). An opening (18) sealed by a septum (20) is provided on the upper surface of the housing (2). The sample injected into the internal space (3) of the housing (2) by a syringe needle that penetrates the septum (20) and is inserted into the internal space (3) of the housing (2) through the opening (18) is heated by the heater (12) and vaporized to generate sample gas. The sample vaporization chamber has a cylindrical liner (16) at least at the lower end. The inner or outer circumferential surface is provided with a first thread (26); and a liner fixing part (4) is provided in the internal space (3) of the housing (2) and has a second thread that is threadedly engaged with the first thread (26) of the liner (16), for fixing the liner (16) in the state of being housed in the internal space (3) of the housing (2) by threading the first thread (26) of the liner (16) inserted from the opening (18) into the internal space (3) with the second thread.

This invention relates to the field of organic photovoltaic cell technology, and particularly to a low-melting-point alloy top electrode, its preparation method, and its application. The preparation method of the low-melting-point alloy top electrode includes the following steps: heating and melting a low-melting-point alloy, adding it to a syringe equipped with a heating head, and using a temperature control system to control the heating head on the syringe to maintain the low-melting-point alloy in a liquid state; controlling printing parameters so that the liquid low-melting-point alloy is pulled out from the syringe needle by shear force and printed onto a substrate; and cooling to obtain the low-melting-point alloy top electrode. This invention uses a solid low-melting-point alloy as raw material and employs fused deposition modeling to prepare a low-temperature alloy top electrode as the top electrode for organic photovoltaic cells. Its electrode film thickness is controllable, enabling the preparation of alloy films with a thickness of less than 100 μm, thereby saving materials and costs; it also exhibits good repeatability, low printing cost, and is suitable for the preparation of large-area battery modules.

The utility model discloses a device for preventing puncture of an empty needle head, which belongs to the technical field of needle head protection devices and comprises an injector, an injector needle head, a needle head protection cap and an auxiliary protection device, the injector needle head is sleeved on the injector, the needle head protection cap is sleeved on the injector needle head, and the auxiliary protection device is arranged on the injector needle head. The auxiliary protection device comprises a supporting block, a protection cover, a protection ring, a limiting protruding block and a limiting frame, after a medical worker uses an injector for treatment, the needle head of the injector can be covered and wrapped through the auxiliary protection device, and the puncture risk caused by the fact that the medical worker makes contact with the needle head accidentally is prevented; according to the syringe needle protective cap, medical workers are prevented from being punctured in the operation processes of medical waste arrangement, syringe transfer and the like, the medical workers can conveniently sleeve the syringe needle with the syringe needle protective cap, and the medical workers can be prevented from being punctured in the sleeving process of the syringe needle protective cap.

1. The name of the design product: syringe accessory. 2. The use of the design product: as a syringe accessory for syringe needle isolation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model relates to the technical field of deciduous tooth root canal treatment, in particular to a flushing auxiliary instrument for deciduous tooth root canal treatment, which comprises an injection needle body, a cylinder is arranged at the mounting end of the injection needle body, external threads are arranged on the outer surface of the cylinder, and a plug is arranged in the cylinder. The interior of the plug is of a hollow structure and is installed on the inner wall of the injection needle body in a communicated mode, the injection end of the injection needle body is arranged to be an oval pointed end, a plurality of flushing holes are evenly formed in the outer side wall of the oval pointed end, and the installation end of the injection needle body is installed on an externally-connected injector body. According to the utility model, the resistance mood of children can be avoided, a threaded retention syringe or a pluggable retention syringe can be selected according to clinical practice, and meanwhile, the bending angle of the syringe needle body can be adjusted according to different orientations of the root canals of the deciduous molar teeth for pre-bending, so that the flushing efficiency of the root canals in different orientations under non-direct vision is improved.

The utility model discloses a syringe needle, which comprises a needle body and a needle seat which are communicated with each other, and is characterized in that the needle seat comprises a head part, a body part and a tail part which are sequentially and coaxially arranged, an accommodating groove is formed in the tail part, a connecting column is convexly arranged at the bottom of the accommodating groove, and the connecting column is connected with the head part of the needle body. An inserting hole penetrating through the head part, the body part and the tail part is formed in the needle seat, and the needle body sequentially penetrates through the head part and the body part through the inserting hole to enter the connecting column. The connecting column structure of the needle seat can be reversely inserted into the needle cylinder for communication, so that the residue of liquid medicine is greatly reduced, the residue-free effect can be generally realized, the waste is reduced, and the environmental pollution is avoided.

Embodiments disclose a disposable protective assembly apparatus for a dental syringe body of a dental syringe. The apparatus is a combination of a disposable syringe tip and a disposable protective sleeve, the sleeve being pre-attached to the syringe tip, and the sleeve being in a pre-folded position to be quickly and easily slid over the dental syringe prior to a dental operation.

The application discloses a syringe with a function of preventing puncture, and relates to the technical field of medical devices.The syringe comprises a syringe barrel, a syringe needle fixedly installed at one end of the syringe barrel, and a syringe piston rod slidably installed in the syringe barrel; the syringe further comprises a protection assembly arranged outside the syringe barrel, wherein the protection assembly comprises a connecting sleeve attached to the outer wall of the syringe barrel, a protection sleeve fixedly connected to one end of the connecting sleeve, and a protection head fixedly connected to the outer surface of the other end of the protection sleeve away from the connecting sleeve; the connecting sleeve and the protection sleeve are arranged to form a rigid protection outside the syringe, and the rigid shell can effectively prevent medical staff or patients from directly contacting the needle area, thereby reducing the risk of puncture caused by accidental contact (especially in emergency operations or when the line of sight is blocked); in addition, in field first aid or disaster sites, the reinforcing structure can resist the damage of falling impact, low-temperature brittle fracture and other harsh conditions to the traditional plastic shell.

The invention provides a novel hyaluronic acid injection device with a reasonable structure, and hyaluronic acid can be stably and safely injected. The injector can be divided into three parts, the front end is a needle head and needle cylinder connecting part, the middle part is an injector needle cylinder main body, the tail end is an injector push rod, and the three parts are all improved and innovated. A connecting part of a needle head and a needle cylinder at the front end of the syringe is designed into a spiral buckle type, and a medical needle head with a standard specification and size is spirally screwed into the connecting part when the syringe is used, so that the design of a single buckle of a traditional syringe is optimized, and the situation that the needle is broken due to overlarge pressure in the injection process is reduced; the design of the syringe needle cylinder main body is characterized in that the finger fixer at the tail end is provided with the front end and the rear end, so that the indicating finger and the middle finger of an operator can be stably fixed, and the stability and the accuracy in the injection process are improved; a finger fixer is also designed at the tail part of the syringe push rod, and the fixer is in a hollow cuboid design, so that the thumb can be fixed, and the hyaluronic acid can be injected and withdrawn by a single hand.

The application belongs to the technical field of aluminum-sulfur batteries and provides a preparation method of an aluminum-sulfur battery catalyst, wherein the catalyst is MQDs, and the preparation method comprises the following steps: step 1, 0.2g of multilayer Ti3C2T x is loaded into a reaction kettle containing 50ml of toluene, the reaction kettle is transferred to a blast drying oven, the temperature is adjusted to 150 DEG C, and the reaction is carried out; step 2, after the reaction is completed, the reaction kettle is cooled at room temperature, and the dispersion liquid in the reaction kettle is sucked into a syringe; step 3, a filter is installed at the needle head part of the syringe to separate a brown liquid. The method uses a reducing toluene solvent as a reaction solvent to prepare MQDs, and effectively inhibits the oxidation of the MQDs and the destruction of the structure of the MQDs when the reaction is carried out at high temperature and high pressure.

A closed system transfer device comprises a syringe that has a hollow, axially extending syringe body within which a plunger is slidably received to define a medicament chamber. The device also includes a syringe needle that is coupled with the syringe body to retain an interior conduit of the needle in fluid communication with the medicament chamber. Additionally, the device further includes a shield that is moveably coupled with the syringe, whereby the shield is operable selectively to expose and envelop the needle. The shield and syringe include mutually cooperable formations to constrain movement of the shield relative to the syringe from a transport position in which the shield envelops the needle and is immovable in both a proximal axial direction and a distal axial direction relative to the syringe.

The utility model belongs to the field of packaging materials, and relates to a double-cavity pre-filled syringe needle cylinder loading device with an independent clamping position structure, which comprises a loading bottom support and a bottom support cover, fixing components matched with the loading bottom support and the bottom support cover are arranged on the loading bottom support and the bottom support cover, a loading cavity is arranged in the loading bottom support, a plurality of clamping positions are uniformly arranged in the loading cavity, and the clamping positions are matched with the loading bottom support and the bottom support cover. A notch is formed in the bottom support cover, and a sterilization channel is formed after the bottom support cover and the loading bottom support are assembled. According to the utility model, the needle cylinder of the double-cavity pre-filled syringe is fixed in the clamping position, so that a product is prevented from falling off in the clamping position due to shaking and vibration in the transportation process; ethylene oxide channels are reserved at the top corners of the periphery of the bottom support cover, so that the ethylene oxide residue is lower than the national standard on the basis of ensuring the sterilization effect of the double-cavity pre-filled syringe needle cylinder; an independent clamping structure enables the needle cylinder to be positioned more accurately in the loading bottom support, and the mechanical efficiency can be improved; the breathing paper is heat-sealed by the sealing skirt edge to form an integral sealing package, so that dust and bacteria are prevented from invading, the long-term storage effect is ensured, and the practicability is high.

A dental safety syringe with a plunger assembly, push lever slidably coupled to the piston rod, a carpule retainer slidably coupled to the piston rod, a barrel assembly detachably coupled to the plunger assembly with a carpule barrel sized to receive a carpule. A needle adapter is coupled to the carpule barrel and a sliding barrel slidably coupled to the carpule barrel. Finger grips extend from the sliding barrel, and an optional trigger is positioned adjacent the finger grip. A push lever lock is slidably coupled a finger grip. A safety cover is detachably coupled to the sliding barrel and is configured to extend past a syringe needle when the push lever is in the inactive position and expose the syringe needle when the push lever is in the inactive position. Operable with a single hand through all of its stages of use.

The invention relates to the field of dispensing equipment, in particular to a waste recovery device for full-automatic high-speed dispensing equipment, which comprises a base, a shearing component and two liquid removal components. The shearing assembly is arranged on the base, and the shearing assembly is used for shearing a needle head of the needle cylinder; the liquid removing assembly comprises a needle clamping mechanism; the needle head clamping mechanism comprises a clamping driving piece and a clamping block, the clamping driving piece is arranged on the base, and the clamping block is arranged on the clamping driving piece; the two clamping blocks abut against the needle head to clamp the needle head. And the clamping driving piece drives the clamping block to rotate, so that the sheared needle head rotates. The syringe needle has the effect of reducing the influence of the syringe needle with residual liquid medicine on the health of workers.

A safety device for preventing needle stick injury comprises a ring configured to be attached to the distal tip of a medical injection device, a first hinge portion, and a protective shield. The protective shield comprises a second hinge portion pivotally coupled to the first hinge portion and is configured to adopt successively a storage position covering the needle tip, a retracted position uncovering the needle tip and a safety position covering the needle tip. In the safety position, the protective shield is locked on the ring by engagement of a locking member with a lug on the ring. The locking member is configured to engage the lug when the protective shield transitions from the retracted position to the safety position, passing from one side of the lug to the other, and remaining engaged with the lug for maintaining the protective shield in the safety position.

The utility model discloses an automatic guide mechanism for a syringe needle. The automatic guide mechanism comprises a base; the first guide piece can move in the front-back direction relative to the base; the second guide sheet can move in the opposite direction of the first guide sheet relative to the base; the centralizing space is defined by the projection of the first guide hole and the projection of the second guide hole in the vertical direction in an enclosing mode, and the area of the centralizing space gradually changes along with relative movement of the first guide piece and the second guide piece; a needle penetrating hole is formed in the protective sleeve in a penetrating mode in the vertical direction, the syringe needle penetrates through the needle penetrating hole in the vertical direction, the centralizing pipe stretches into the centralizing space so that the centralizing pipe can be centralized in the centralizing space, and the stopping piece is stopped and positioned on the upper side of the first guide piece by the centralizing space so that the syringe needle can slide downwards relative to the protective sleeve. The guide mechanism effectively prevents cross contamination of samples in the test tube, the first guide sheet and the second guide sheet do not need to be frequently replaced, the cost is reduced, and the time is saved.

This invention relates to the field of PRP separation and extraction technology, and particularly to an apparatus for automatically separating and extracting PRP, comprising a centrifuge, a PRP extraction device, a PRP detection device, a robot motion device, and a placement and disposal device. The PRP extraction device is used to extract PRP from centrifuge tubes in the PRP detection device. The PRP extraction device includes an electric gripper for fixing the syringe barrel, two drive components for moving the syringe piston handle and the syringe as a whole, and a PRP layer detection module for detecting the relative position of the syringe needle and the PRP. The PRP detection device is equipped with a positioning module for detecting whether the syringe needle on the PRP extraction device is aligned with the centrifuge tube. This invention can accurately and automatically extract PRP after centrifugation, avoiding positioning differences during extraction that could cause errors in the syringe extraction position affecting the purity of the extracted PRP. It not only achieves fully automated PRP separation and extraction, but also achieves high extraction purity and high efficiency.

The utility model relates to an injector suction cup distributing device which comprises vacuum suction nozzles, a distributing rotary disc and a vacuum cavity. The material distributing rotary disc is composed of a top panel, a bottom panel and a cylinder, wherein the top panel and the bottom panel are the same in size, and the cylinder is connected with the top panel and the bottom panel. A plurality of grooves corresponding to each other up and down are uniformly formed in a top panel and a bottom panel of the material distribution turntable, and are used for fixing syringe needle tubes; a plurality of vacuum suction nozzles corresponding to the grooves are arranged on a cylinder of the material distribution turntable, and the suction nozzles are used for adsorbing syringe needle tubes; the vacuum cavity is a cylinder, is fixedly installed on a bottom panel of the material distributing rotary disc and is used for generating vacuum. And by arranging the vacuum suction nozzles, the material distribution rotating disc and the vacuum cavity, continuous air pressure is guaranteed, air blowing and material distribution are more stable, and the product quality is improved.

The utility model discloses a multifunctional syringe set which comprises a bottle, cylindrical silica gel is installed at the upper end of the bottle, a connector is connected to the cylindrical silica gel in a sealed mode, the connector is connected with an outlet silica gel tube and an inlet silica gel tube in a sealed mode, the outlet silica gel tube and the inlet silica gel tube are both connected with a right syringe push-pull rod, and the right syringe push-pull rod is connected with a left syringe push-pull rod. The outer side of the syringe push-pull rod is sleeved with a syringe needle cylinder, an oval silica gel piston is arranged between the syringe needle cylinder and the syringe push-pull rod, the end of the syringe push-pull rod is connected with a push rod kit, a right rubber plug is positioned at the end of the push rod kit, and PP gummed paper is installed on the connector. According to the multifunctional injector set, after exhausting is completed, the volume of liquid in a bottle is expanded along with temperature rise, the push rod can move outwards along with the piston, balance of volume expansion of the liquid is achieved, and therefore the risk that the closed bottle filled with the liquid bursts due to volume expansion is avoided.

The utility model relates to the technical field of injection molds, and discloses an injector needle cylinder injection mold convenient to demold, which comprises a frame body, an injection molding machine is fixedly connected to the top end face of the frame body, an electric push rod is fixedly connected to the inner wall of the frame body, and the injection molding machine is fixedly connected to the inner wall of the frame body. The output end of the electric push rod is rotationally connected with a movable mold, and an ejection assembly is arranged on the side wall of the movable mold. According to the injector needle cylinder injection mold convenient to demold, multiple points act at the same time, force is more evenly distributed, structural damage caused by single-point force application is avoided, injector deformation is prevented, the demolding success rate is increased, the spiral rod drives the movable mold to rotate, the injector is subjected to the action of centrifugal force, demolding auxiliary force is increased, dependence on ejection force is reduced, and the demolding efficiency is improved; and the rubber sheet flaps the movable mold to cause slight vibration of the movable mold, so that the adhesive force between the mold core and a product is reduced, and the injector is easier to separate from the mold core.

The utility model discloses a subcutaneous injection auxiliary device which comprises a needle cylinder, a detachable side cover, an automatic booster, a clamping piece and an adjustable sleeve. A pre-filled syringe is placed in the needle cylinder, and a needle head of the pre-filled syringe extends out of the front end of the needle cylinder; the clamping piece is arranged on the inner wall of the needle cylinder and is used for fixing the pre-filled syringe; the automatic booster is arranged at the inner rear end of the needle cylinder, meanwhile, an injection button is arranged on the outer end face of the rear end of the needle cylinder and used for starting the automatic booster, a piston handle clamping part is arranged at the front end of the automatic booster, and the piston handle clamping part can manually move forwards to be matched with a piston handle of the pre-filled syringe; the detachable side cover is detachably connected with the cylinder wall of the needle cylinder; the adjustable sleeve is arranged at the front end of the needle cylinder, and the extending length is adjustable. The self-service subcutaneous injection auxiliary device can assist home persons in completing subcutaneous injection through self-service operation.

The utility model belongs to the technical field of veterinary injection devices, and particularly relates to a syringe needle protective sleeve for a veterinary syringe. A syringe needle protective sleeve for veterinary use comprises a connecting tube, a connecting auxiliary tube is arranged at the front end of the connecting tube, a telescopic head is arranged at the front end of the connecting auxiliary tube, the telescopic head is connected with the connecting auxiliary tube in a telescopic mode, and the telescopic head can be stored into the connecting auxiliary tube; a first needle head through hole is formed in the telescopic head.

A safety device includes a ring configured to be attached to a distal tip of a medical injection device and a protective shield movably coupled to the ring and configured to adopt a storage position covering the needle tip, an operative position uncovering the needle tip, and a safety position covering the needle tip A protective cap is mounted on the ring to cover the needle tip, and can be separated from the ring prior to use of the device. A retaining system includes a first retaining portion on the protective shield and a second retaining portion on the protective cap, with the first and second retaining portions cooperating in the storage position to prevent the protective shield from moving to its operative position. A releasing system releases the retaining system and is configured to be activated by a manual inward pressure exerted on the protective cap.

The utility model relates to the technical field of syringes, and discloses a needle sealing cap suitable for an insulin syringe, which comprises a cap body, the front end of the cap body is provided with a front cavity for placing a syringe needle, the inner side wall of the front cavity and the outer side wall of the syringe needle are arranged at an interval, and the rear end of the cap body radially expands outwards to form an expansion ring. A rear cavity for placing the needle seat is formed in the expansion ring, the rear cavity is communicated with the front cavity, an elastically deformed clamping ring is arranged in the rear cavity, and the clamping ring is arranged in a surrounding manner in the circumferential direction of the rear cavity; the rear cavity is provided with a cavity opening for inserting a syringe needle at the rear end of the expansion ring; after the insulin syringe is used, the cap body is held by a hand, the injection needle is aligned with the cavity opening and inserted until the injection needle is completely arranged in the front cavity, the needle base can be clamped through the clamping ring in the expansion ring, so that the cap body and the needle base are fixed, the injection needle is effectively prevented from being punctured, and the use safety is improved.

The application discloses a syringe needle tip orientation device, which comprises a rack, a limiting table arranged on the rack and used for placing a needle strip, a clamping device arranged on the rack and used for clamping a sheath assembly along a radial direction of the sheath assembly, a lifting device arranged on the rack and used for lifting the sheath assembly along an axial direction of the sheath assembly, a needle tip orientation device arranged on the rack and used for orienting a needle tip direction of a needle tube on the sheath assembly, a curing device arranged on the rack and used for curing the oriented needle tube, and a control device connected with the clamping device, the lifting device, the needle tip orientation device and the curing device.