1251 results about "Huber needles" patented technology

The invention discloses a puncture type automatic injection pen which comprises a trigger assembly, a power assembly, an injection assembly and a protection assembly. A limiting plug in the trigger assembly is in interference fit with a button, and the button is in limiting connection with the upper pen shell. A spring of the power assembly wraps a push rod and is installed in an outer body containing cavity, and the push rod compresses the spring and then is clamped into an outer body limiting hole to be pre-tightened. A medicine bottle of the pre-filling injection assembly is in interference fit with a rubber plug, the near end of a needle abuts against the medicine bottle, a protective cap is inserted into the far end, and the assembly can slide in the lower pen shell. The sliding sleeve of the protection assembly is located at the near end when not excited and moves to the far end after being excited. During excitation, the limiting plug is pulled to press the button, the push rod is released, the spring drives the push rod to impact the rubber plug, the pre-encapsulation injection assembly is pushed to move downwards, and the needle head punctures to complete injection; and after excitation, the sliding sleeve is screwed to lock and cover the needle head. The injection pen is operated by one hand, is rapid in injection, can prevent the needle from being accidentally injured, and ensures reliable medication.

The invention provides a needle-base-free multi-needle electrostatic spinning nozzle which comprises a liquid conveying base, a liquid storage base, a conductive assembly and multiple spinning needles, the distance between every two adjacent spinning needles is 1-3 mm, the inner diameter of each spinning needle is 0.1-0.3 mm, and the outer diameter of each spinning needle is 0.3-0.5 mm. Compared with the prior art, the multiple spinning needle heads are directly connected with the current-conducting plate, so that the distance between the adjacent needle heads is shortened to 1-3 mm, and short-distance ordered array nanofiber preparation is achieved; a plurality of second through holes are formed in the current-conducting plate, so that the array mode of the spinning needle heads on the current-conducting plate can be flexibly adjusted according to production requirements to meet the preparation requirements of different nanofiber arrays.

The utility model discloses a microsphere injection anti-needle-blocking device which comprises a handpiece, an injector is fixed to the handpiece, the handpiece comprises a vibration part, and when the vibration part is in a working state, the vibration part enables the handpiece to vibrate; and the host is electrically connected with the vibration part and is used for controlling the start and stop of the vibration part. According to the application, the injector is fixed on the handpiece, and the host is connected with the vibration part of the handpiece to enable the handpiece and the injector to vibrate, so that the solid microspheres precipitated in the injector and the liquid are remixed. Therefore, injection treatment interruption caused by needle head blockage is avoided, and meanwhile waste and low efficiency caused by needle head replacement are avoided.

A tattoo needle assembly has a housing comprising a longitudinal channel, a needle bundle mounted in the longitudinal channel and reciprocally movable between a retracted position and an extended position, and a biasing member engaged with the housing and the needle bundle for biasing the needle bundle at least radially to an inner wall of the housing. The housing comprises first and second guide surfaces forming a V-shaped guideway on the inner wall. The needle bundle comprises first and second sliding surfaces for slidably engaging the guideway. The biasing member radially biases the needle bundle to slidably engage the guideway such that the guide surfaces of the guideway and the sliding surfaces of the needle bundle form a V-V sliding pair during reciprocal movement of the needle bundle between the retracted position and the extended position.

The invention provides an adhesive dispensing control method and system based on a Unity engine and electronic equipment, which are applied to a virtual layer of the adhesive dispensing control system based on the Unity engine, and the virtual layer comprises an adhesive dispensing virtual model constructed based on the Unity engine. The method comprises the steps that when a rocker of the mechanical arm is pressed down, real-time pressure of a needle and distance information between the needle and a target point are obtained; obtaining prediction information based on the distance information between the needle head and the target point, the real-time pressure and a pre-constructed prediction model, and carrying out analogue simulation on the dispensing process based on the prediction information and the dispensing virtual model; wherein the prediction information at least comprises the width of the glue line and the predicted motion trail of the needle head; and generating a control signal based on the prediction information to enable the mechanical arm to control the movement of the needle based on the control signal. According to the invention, the reject ratio of dispensing and the damage to the chip are reduced.

Provided is an anastomosis arrangement for joining two opposite stumps of a tubular organ in a streamlined anastomosis procedure. The arrangement includes a pair of axially symmetric stump-coupling members that accommodate pairs of counterpart suturing needles, linked together by common suturing threads, and manipulable by a needle-manipulation element to extract the needles tips from the stump-coupling members for piercing walls of the stump.

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 relates to the technical field of medical instrument manufacturing, in particular to a first-aid injection pen structure with a self-hidden needle after injection, which comprises an upper component, a lower component and a PFS component. The upper assembly limits the displacement of an excitation rod through an inner main body and an outer main body, and an excitation spring and an auxiliary spring respectively provide injection power and needle head hiding power; a starting shell of the lower assembly triggers injection under the jacking force of a human body; and the PFS assembly realizes liquid medicine release. The needle head is hidden in the starting shell initially, the starting shell moves upwards during excitation, the excitation rod pushes the piston to inject under the action of the excitation spring, and meanwhile the spring is assisted in storing energy. After injection is finished, the auxiliary spring releases potential energy to push the outer body and the starting shell to move downwards, and the needle is hidden again. The structure is linked with the upper assembly and the lower assembly through double-spring driving, full-process hiding of the injection needle is achieved, the advantages of being easy and convenient to operate, high in safety, stable and reliable in structure and the like are achieved, and the problem of exposure risk of an existing first-aid injection pen needle is effectively solved.

The invention relates to a high-speed electromagnetic needle selection device and a needle selection method. The electromagnetic needle selection device comprises an electromagnetic needle selection piece, a bird piece, a needle selection shaft, a pressing strip and a needle jack. The electromagnetic needle selection piece is provided with a needle selection head which can swing under the action of internal magnetic force of the electromagnetic needle selection piece so as to perform needle selection; the bird piece is provided with a needle selection part, and the needle selection shaft, the needle selection part and the needle selection head are matched for use for needle selection; the outer side wall of the needle selecting shaft is provided with a first cambered surface, a second cambered surface and a third cambered surface which can abut against the bird-shaped pieces in a sliding mode, and the distances between the three cambered surfaces and the axis of the needle selecting shaft are sequentially reduced so that the needle selecting shaft can continuously rotate by one circle, and under the action of the pressing strip, the bird-shaped pieces can stay at three different positions in the rotating process. The needle selecting shaft, the needle selecting part and the needle selecting head are used in cooperation so that the needle jack butt can be switched among the lowest position, the low needle position and the high needle position. Needle selection of the electromagnetic needle selection piece can be completed by continuously rotating the needle selection shaft and cooperating with the needle selection head, the needle selection time is greatly shortened, and the knitting efficiency is improved.

The utility model relates to the technical field of medical instruments, and discloses a skin auxiliary lifting and pinching fixing clamp based on abdominal injection, which comprises an auxiliary pinching clamp, a lifting and pinching part, a handle part, a through groove, a spring ring and a clamping soft cushion. The two sets of handle parts are pressed to be close to each other, so that the clamping soft cushions on the two sets of lifting and pinching parts are opened to clamp the lifting and pinching protruding parts, the lifting and pinching parts are continuously kept fixed, the clamping soft cushions are made of silica gel materials, discomfort of the clamping parts of a patient can be reduced, at the moment, medical staff can concentrate on safe and stable injection of an injection instrument, and the safety of the injection instrument is improved. The situation that a needle shakes and folds due to redundant operation, and discomfort and unnecessary danger of a patient are increased is avoided, so that the skin of the patient can be automatically lifted, pinched, fixed and kept through the device, the hands of a nurse are liberated, the operation difficulty of the nurse is reduced, injection adverse reactions are reduced, and the injection comfort and safety of the patient are improved.

The utility model discloses a flat nozzle and needle head integrated frictioning device which comprises a case, dust-free cloth, a partition plate, an unwinding mechanism, a winding mechanism and a plurality of tensioning shafts, wherein the tensioning shafts are arranged on the partition plate and are positioned between the winding mechanism and the unwinding mechanism. A needle head wiping mechanism and a flat nozzle wiping mechanism are further arranged on the partition plate, the needle head wiping mechanism comprises a first roller, a second roller, a third roller and a clamping assembly which are arranged on the partition plate, and the flat nozzle wiping mechanism comprises a floating plate with a groove formed in the upper end face and a plurality of elastic supporting pieces which are arranged on the machine box and used for supporting the floating plate; dust-free cloth passes through the upper end face of the floating plate and is pulled by the first roller, the second roller and the third roller to form a V-shaped groove with an upward groove opening, and the clamping assembly can clamp the dust-free cloth from the outer side of the V-shaped groove. The flat nozzle and needle head integrated frictioning device has the advantages that the flat nozzle and needle head integrated frictioning device can wipe the needle head and the flat nozzle at the same time, the cost of downstream manufacturers is effectively saved, and the adaptation degree to different working conditions is improved.

A device for puncturing skin in a reciprocal manner includes a reciprocally movable needle, a driving device including a driving mechanism and a driving rod arranged for driving the reciprocally movable needle between a retracted and extended position. The driving mechanism is arranged for reciprocally driving the driving rod in a longitudinal direction along the longitudinal axis of the driving rod. The driving device further includes a suspension system arranged between a frame member of the driving device and the driving rod and the suspension system is arranged for elastically suspending the driving rod in the longitudinal direction in the frame such that the driving rod is freely movable in longitudinal direction. The suspension system is further arranged for biasing the driving rod to a longitudinal neutral position.

This application relates to the field of dispensing technology, and in particular to a height conversion method for a multi-station dispensing mechanism. The method includes: obtaining a virtual compensation value X1 for the simulated needle; obtaining a conversion compensation value X2 for the dispensing needle; obtaining an actual compensation value X3 based on the virtual compensation value X1 and the conversion compensation value X2; adjusting the vertical displacement of the dispensing needle according to the actual compensation value X3; wherein the virtual compensation value X1 is the vertical compensation value of the simulated needle during dispensing simulation, and the conversion compensation value X2 is the vertical compensation value of the dispensing needle during dispensing simulation; the reference position of the simulated needle during dispensing simulation is the same as the reference position of the dispensing needle during dispensing simulation. A multi-station dispensing device includes a vision mechanism and multiple dispensing mechanisms. This application enables the unification of the vertical position reference of the dispensing mechanism and the vision mechanism, avoiding height errors from affecting the dispensing operation.

The utility model discloses a probe with double curled edges, which relates to the technical field of probes, and comprises a needle tube, a needle head assembly is arranged on one side of the needle tube, a first curled groove is arranged at the edge of one end of the needle tube, a second curled groove is arranged on one side of the first curled groove, and the second curled groove is arranged on the other side of the first curled groove. The other end of the needle tube is provided with an arc end, a needle tube groove is formed in the needle tube, one end of the needle tube groove is open, a compression spring is arranged in the needle tube groove, the needle head assembly moves along the needle tube groove and extrudes the compression spring, and the needle head assembly comprises a needle body part and a limiting moving body; according to the scheme, the problems that most of needle tube contact ends of existing ICT probes are curled in a single layer, the area of contact points is limited, poor contact, easy abrasion and insufficient stability are caused in the long-term use process, and the test result is affected are solved.

The invention belongs to the technical field of medical equipment, and particularly relates to a bionic self-locking microneedle structure, a microneedle patch and a preparation method. The bionic self-locking microneedle structure comprises a needle body and a wing-shaped structure, the wing-shaped structures are evenly distributed in the circumferential direction of the needle body. The tip end of the wing-shaped structure and the tip end of the needle head are in the same direction, and the angle of the tip end is 25-45 degrees; the length of the wing-shaped structure is smaller than that of the needle body; the wing-shaped structure is located at the position 200-800 microns away from the bottom of the needle head. The number of the wing-shaped structures ranges from 2 to 10. The supporting wings, namely the wing-shaped structures, are integrally connected with the needle body, the contact area between the lower portions of the bionic wing-shaped structures and the skin is larger, and the adhesion capacity to the skin is better. Due to the wing-shaped structure, a reverse buckling effect can be formed between the micro-needle and surrounding tissues after the micro-needle is punctured into the skin, so that the pullout force caused by tissue rebound and body fluid lubrication is effectively resisted, and long-term stable retention of the micro-needle in the skin is realized.

The invention discloses a needle head cleaning device and method.The needle head cleaning device comprises a first driving assembly, a brushing assembly, a needle head storage box and a soaking groove, needle heads are placed in the needle head storage box, the needle head storage box is installed on the first driving assembly, the brushing assembly is arranged above the needle head storage box, and the soaking groove is formed in the first driving assembly; the soaking tank is arranged below the syringe needle storage box, the first driving assembly drives the syringe needle storage box to move downwards into the soaking tank, so that pure water soaking or enzyme liquid soaking is conducted in the soaking tank, and the first driving assembly drives the syringe needle storage box to move upwards to make contact with the scrubbing assembly; and the brushing assembly is used for brushing needles in the needle storage box. According to the needle head cleaning device, a large number of needle heads can be automatically cleaned at a time, and the consistency of cleaning standards is guaranteed.

A suturing instrument is provided. The suturing instrument comprises: a flexible shaft comprising an articulatable bending section; and a needle end effector located at a distal end of the bending section. The needle end effector comprises a toggle-based rotation mechanism to switch an orientation of a needle to engage and disengage the needle with a ferrule.

The utility model relates to the technical field of syringe needle production, in particular to a waste syringe needle recovery device for syringe needle production, which comprises a recovery box, a protection bin arranged in the recovery box, a protection plate arranged in the protection bin, a spraying structure arranged in the protection bin, and a driving structure arranged on the recovery box. A fixing structure used for limiting and fixing the protection bin is arranged on the recycling box, the spraying structure comprises a liquid storage box fixedly connected to the vertical inner wall of the protection bin, a plurality of spraying heads fixedly penetrate through the liquid storage box, a liquid inlet pipe fixedly penetrates through the top of the liquid storage box, and a pair of connecting lugs are fixedly connected to the liquid storage box; the connecting lugs and the protective bin are in threaded connection with the same dismounting bolt. Compared with needle recovery in the prior art, the needle recovery device has the advantages that due to the arrangement of the driving structure and other components, other articles are prevented from accidentally falling into the recovery box and being difficult to take out, and the risk that irrelevant personnel are injured due to touching waste needles is effectively avoided.

A microneedle is provided in some embodiments of the present disclosure, including a supporting portion, a needle tip portion and an adhesion layer. The needle tip portion is disposed above the supporting portion, including an active substance. The adhesion layer is disposed between the supporting portion and the needle tip portion, including an adhesive material and a viscosity-reducing substance distributed in the adhesive material. A microneedle patch and a method are further provided in some embodiments of the present disclosure.

The utility model relates to a rotator cuff stitching instrument which aims to solve the problem that a puncture core needle is broken. Comprising a front suturing part, a middle conduction part and a rear handle control part, and the front suturing part comprises an end-ring-shaped upper fixed lip valve used for clamping rotator cuff tissue and a needle-tube-shaped lower movable lip valve capable of being controlled to be folded upwards; the front end of the needle-tube-shaped lower movable lip valve is communicated with an upward tubular needle head used for penetrating through the upper fixed lip valve end ring upwards, and the PDS degradable suture line penetrates out of the upward tubular needle head through the needle-tube-shaped lower movable lip valve. The upper end of the upward tubular needle head is a beveled tube head needle opening with a backward opening. And the upper part of the upward tubular needle head is bent backwards in an arc shape. The disposable puncture core needle has the advantages that the problem that the disposable puncture core needle is broken during suturing is solved, the cost of the puncture core is saved, and the damage to the rotator cuff is small.

An auto-injector, comprising: a pen cap (1), a front pen holder (2), and a compression mechanism. The compression mechanism is arranged inside the pen cap (1) and the front pen holder (2). The compression mechanism comprises a rear pen holder (7). During use, a limiting block (16) on the surface of a push rod (11) can rotate accordingly, a track (15) can cancel the limiting to the limiting block (16), and a push rod spring (10) in the push rod (11) is normally in a compressed state. When the limiting to the limiting block (16) is canceled, the push rod spring (10) is compressed to push the push rod (11) to move, then the push rod (11) can push a rubber plug (12) to move, subsequently, the rubber plug (12) squeezes a drug liquid in a needle cylinder (13), and the drug liquid flows out from the inside of the needle and finally enters the body of a patient. By means of using the simplified parts, production costs are reduced, and the stability of the injector can be improved. Meanwhile, the requirements of customers for small size are better met.

The invention relates to the technical field of intravenous infusion ports, and particularly discloses a port puncture simulation system implanted into an intravenous infusion port, which is used for solving the problem that the puncture position and force of a needle cannot be accurately grasped. According to the method, the contact area mechanical equilibrium model is established through the first puncture parameter and the second material parameter of the needle head to analyze the optimal puncture strength, then the position and the puncture strength of the needle head are controlled and adjusted through the PID control algorithm, the port puncture deviation evaluation model is established based on the first puncture parameter, and the puncture deviation value is evaluated. Timely feedback is performed on puncture simulation practice, and the efficiency of puncture simulation teaching can be improved.

1.The name of the design product: needle head (bullet head) of microwave ablation needle. 2.The use of the design product: used with microwave ablation equipment, belonging to the field of medical devices. 3.The design points of the design product: in shape. 4.The picture or photo that best indicates the design points: perspective view. 5.Other circumstances that need to be explained: the design product requested to protect does not contain color; the design product is a partial design, the part requested to protect is the yellow part in the view, and other parts are not claimed.

An anti-needlestick safety needle, comprising: a needle tubing (11), a sleeve member (12), an operating handle (13), and a core rod (14) in communication with the needle tubing (11). The needle tubing (11) comprises a connecting end (111). The connecting end (111) is a tail end of the needle tubing (11) connected to the core rod (14). The connecting end (111) is located within the sleeve member (12) and is located on a front side of the operating handle (13), i.e., one side where a needle head of the needle tubing (11) is located. A magnifying mechanism (15) is arranged on the sleeve member (12) and used for magnifying an image of the connecting end (111). By means of the design that the connecting end (111) is positioned within the sleeve member (12) and is located on the front side of the operating handle (13), it is ensured that the hand of an operator does not obstruct the connecting end (111) of the needle tubing (11) during blood sampling with one hand, and the operator is allowed to clearly observe the blood return condition during blood sampling, so that the real-time operational monitoring and feedback are improved, thereby reducing risks in blood sampling operation. By means of the arrangement of the magnifying mechanism (15), a visual field magnifying effect is provided, so that the operator can observe the blood return condition more clearly, thereby reducing errors and improving operational accuracy.

The invention discloses an elastic pin connector based on a double-convex-hull fuzz button contact piece, belongs to the technical field of electric connectors, and aims to solve the problems of high contact resistance, easiness in abrasion, easiness in transient signal interruption and the like caused by point contact of a traditional elastic pin connector. The connector comprises a sleeve with a one-way opening, an elastic piece and a needle head are sequentially assembled in the sleeve from the bottom to the opening, and the head end of the needle head extends out of the sleeve; two symmetrical annular convex hulls are arranged on the periphery and are formed by a plurality of strands of metal wires, and the distance between the convex hulls is larger than half of the axial length. During testing, the needle head is in contact with a tested chip and is compressed by the elastic piece under axial pressure, and the annular convex hull is in contact with the inner wall of the sleeve to form an electric signal conduction path of'contact point-needle head-sleeve '; after testing, the elastic piece rebounds, and the convex hull is separated from the inner wall of the sleeve to reset. The connector improves the contact stability, prolongs the service life, and is suitable for a high-reliability test scene of a chip.

The ablation needle at least comprises a needle tube, a first cavity and a second cavity which are independent of each other are arranged in the needle tube, a first pipeline is arranged in the first cavity, a second pipeline is arranged in the second cavity, and the first pipeline and the second pipeline extend to the outside of the needle tube from the near end of the needle tube; the near end of the needle body is connected with the far end of the needle tube, a hollow pipeline is arranged in the needle body, a first channel is formed between the needle body and the pipeline, a second channel is arranged in the pipeline, the far end of the first channel is communicated with the far end of the second channel, the near end of the first channel is communicated with the first cavity, and the far end of the second channel is communicated with the second cavity. The near end of the second channel is communicated with the second cavity, and a water outlet hole is formed in the needle body; the needle head is connected to the far end of the needle body. According to the utility model, two channels are arranged, one channel is used for injecting one kind of liquid, and the other channel is used for injecting the other kind of liquid or sucking gas generated in the ablation treatment process.

A group of inventions relates to the field of medical devices. A method for producing needles with adsorption properties is described by depositing an iron oxide coating onto the needle by atomic layer deposition. An acupuncture needle for reflex therapy, consisting of a handle and shaft made of metal material, is placed in a reactor where a vacuum is created at a pressure of approximately 10 mbar ± 0.1 mbar and a temperature of 150 ± 0.2 °C, then a ferrocenecarboxylic acid precursor in the form of vapor is delivered to the reactor, then nitrogen is added to the reactor and degassed to the initial pressure, and this process is repeated in pulse mode until a specific coating thickness is formed. The use of ferrocenecarboxylic acid as a precursor for producing an Fe3O4 coating is described. An acupuncture needle for adsorbing toxic heavy metal ions is described with a coating of Fe3O4 nanofilm thickness of 14 nm ± 0.1 nm, and the nanofilm has the appearance of a nanosieve as shown in Figure 1b. The use of acupuncture needles for adsorbing metal ions is described. The technical achievement of this invention is the development of a method for attaching a magnetic separation film of Fe3O4 to the surface of an acupuncture needle, which is simpler and less expensive in terms of methodology and technique, thereby imparting adsorption properties to the acupuncture needle. The needle of this invention makes it possible to adsorb toxic heavy metal ions such as cadmium, arsenic, manganese, cesium, aluminum, iron, cobalt, nickel, chromium, mercury, lead, copper, zinc, beryllium, antimony, thallium, bismuth, osmium, tin, molybdenum, zirconium, titanium, vanadium, molybdenum, and gallium.