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42 results about "Pen Injector" patented technology

Pen-type injector (DP1-1)

ActiveCN309991651SPen InjectorPharmacy medicine
1. Name of the product in this design: Pen-type Injector (DP1-1). 2. Purpose of this design: For injecting drugs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Easy-to-assemble pen injector and assembly method therefor

PCT designated stageWO2026056317A1Ampoule syringesAutomatic syringesPen InjectorStructural engineering
The present invention relates to the field of pen injectors, and in particular, to an easy-to-assemble pen injector and an assembly method therefor. The easy-to-assemble pen injector comprises a pen housing. Head and tail ends of the pen housing and the interior of the pen housing are provided with drug loading parts and a pushing part, respectively. The drug loading part is configured for mounting a cartridge, and the pushing part is configured for pushing the liquid out of the cartridge. The pen housing is circumferentially closed. Two ends of the pen housing are provided with openings for connecting the drug loading parts, and the openings form a channel for the pushing part to enter the interior of the pen housing. The pen housing and the pushing part are fixedly provided with a first electronic component and a second electronic component, respectively, and the first electronic component and the second electronic component synchronously achieve electrical contact when the pushing part is mounted to a desired position in the pen housing along an axis. The first electronic component comprises a charging port, and the second electronic component comprises a first circuit board and a spring needle fixed on the first circuit board and perpendicular to the axis. When the second electronic component moves to the desired position with the pushing part, the spring needle is snap-fitted to the charging port.
Owner:SUZHOU JIASHU MEDICAL TECH CO LTD

Pen-injector (WH-DH3)

ActiveCN310047408SPen InjectorPharmacy medicine
1. Name of the product in this design: Pen-type Injector (WH-DH3). 2. Purpose of this design: For injecting drugs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view.
Owner:SHANGHAI PEIYU MEDICAL EQUIPMENT CO LTD

Pen type syringe anti-needling assembly assembling mechanism

PendingCN122033617AMetal working apparatusPen InjectorControl system
The invention relates to an assembling mechanism for an anti-needling assembly of a pen type injector. The assembling mechanism comprises a rack, a conveying mechanism, a height measuring mechanism, an assembling mechanism and a control system. The height measuring mechanism is used for acquiring the actual hanging height of the core rod; and the control system drives a lifting mechanism at the bottom of the conveying mechanism or a third clamping jaw of the assembling mechanism to perform lifting compensation according to the height data so as to eliminate the height tolerance of the supplied materials. During assembly, the second clamping jaw on the upper portion clamps the upper cover to be pressed downwards, the third clamping jaw on the lower portion is rigidly supported on the boss of the core rod upwards, and the second clamping jaw and the third clamping jaw are coaxially and oppositely arranged, so that assembly loads are directly transmitted to the third clamping jaw through the boss to be unloaded. According to the invention, high self-adaptive compensation is realized, huge assembly force is prevented from directly acting on the injector body along the axial direction, the product is effectively prevented from being damaged by pressure, and the overall assembly yield is improved.
Owner:MOON PHARM EQUIP (HANGZHOU) CO LTD

Pen type injector and injection system

The invention discloses a pen type injector and an injection system, and relates to the technical field of medical instruments, the pen type injector comprises a shell, an injection module, a first driving module and a second driving module, the injection module, the second driving module and the first driving module are sequentially arranged in the shell in the first direction of the shell, a needle outlet for the injection module to extend out is formed in the front end of the shell; the injection module can move in the first direction and comprises a liquid storage barrel, a piston movably arranged in the liquid storage barrel and an injection needle communicated with the liquid storage barrel; the first driving module is used for driving the second driving module and the injection module to move in the first direction, so that the injection needle extends out of the needle outlet and pierces the skin; the second driving module is connected with the piston, and the second driving module is used for driving the piston to move in the first direction so as to push out the injection in the liquid storage cylinder; therefore, the device can improve the injection precision and improve the working efficiency.
Owner:上海得予智能科技有限公司

Injection amount measurement and management system for mounting on dose-setting knob of pen-type injection device

PCT designated stageWO2026014587A1Drug and medicationsMedical devicesPen InjectorPharmacy medicine
The present invention relates to an injection amount measurement and management system for mounting on a pen-type injection device (1) having an injection button that does not rotate during injection, in order to measure the injection amount of a drug, and relates to an injection amount measurement and management system (100) for mounting on the dose-setting knob of a pen-type injection device, the system comprising: a main body (110) in which a main body IMU sensor (112) is installed; an injection button interlocking part (120) which is mounted so as to be interlocked with the rotational operation of an injection button (11) of the pen-type injection device (1) and has an injection button IMU sensor (121) installed therein; a main control unit (130); and an input / output interface (140), wherein the main control unit (130) calculates a relative angle change value (RA) between a measurement value of the main body IMU sensor (112) and a measurement value of the injection button IMU sensor (121), acquires a drug dose calculation value using the relative angle change value (RA) until injection is completed when the relative angle change value (RA) occurs in a return rotation direction, and then manages and displays the drug dose calculation value as injection history information.
Owner:KIM BYUNG JONG

Needle cover and pen type injector

ActiveCN223930502UInfusion syringesInfusion needlesPen InjectorRubber ring
The utility model relates to the technical field of injectors, in particular to a needle cover and a pen type injector, the needle cover comprises a cover body and a connecting piece arranged on the cover body, the connecting piece comprises a driving part and a sealing part, the driving part comprises a plurality of sliding blocks, the sliding blocks are arranged on the outer wall of the edge of the opening face of the cover body, and the sealing part is arranged on the outer wall of the opening face of the cover body. The driving part further comprises a moving ring, and grooves corresponding to the sliding blocks are formed in the inner wall of the moving ring. The rubber ring, the movable ring and the guide ring are arranged, so that the effect of sealing the two ends is achieved, the multi-extrusion sealing effect is further achieved, external dust is prevented from entering, and the internal cleanliness is improved; by arranging the elastic supporting table, the connection stability between the cover body and the injection tube is further enhanced, the effect of stabilizing the hand of a user when the cover is pulled out can be achieved, the hand is prevented from moving downwards or shaking when holding the injection tube to pressurize, the use difficulty of the injector is reduced, and the use safety degree of the injector is enhanced.
Owner:CHANGZHOU YOUZHU MEDICAL TECHNOLOGY CO LTD

Pen-injector

ActiveCN309718246SPen InjectorPharmacy medicine
1. The name of the design product: pen type syringe. 2. The use of the design product: for injecting medicine. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: the top enlarged view is an enlarged view of the top view; the bottom enlarged view is an enlarged view of the bottom view.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Pen injector carry case

PCT designated stageWO2026131832A1Intravenous devicesPen InjectorHigh density
The present disclosure relates to a pen injector carry case (10, 20, 30) suitable for storing a drug delivery device (1). The carry case (10, 20, 30) comprises a first compartment (13, 23, 33) configured to receive a pen type a drug delivery device (1) and a second compartment (14, 24, 34) configured to receive accessories (2, 3) for the pen type a drug delivery device (1). The carry case (10, 20, 30) is made from two sheets or panels (11, 21, 31, 12, 22, 32) of a high-density polyethylene (HDPE) material that are connected together along seams (15, 25, 35, 16, 26, 36).
Owner:SANOFI SA(FR)

Pen-type injector (Type B)

ActiveCN310002678SPen InjectorPharmaceutical drug
1. Name of the product in this design: Pen-type Injector (Type B). 2. Purpose of this design: For injecting drugs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view.
Owner:CHANGZHOU YOUZHU MEDICAL TECHNOLOGY CO LTD

Chemical wake-up mechanism for active electronics in pen injectors

Implementations of the present disclosure are directed to conserving energy of an injection device that includes an energy source configured to power an electronic component, a priming component configured to generate a trigger, a reactant configured to generate an instantiation signal in response to the trigger, and a sensor configured to detect and process the instantiation signal and generate an activation signal to activate the energy source.
Owner:SANOFI SA(FR)

Pen-injector

The present application relates to the field of syringes, in particular to a pen syringe, comprising a pen body, an injection mechanism, a locking mechanism and an identification member, the injection mechanism comprises an injection plunger, the injection plunger and a medicine cartridge are distributed along the axial direction of the pen body, the injection plunger can push out the medicine in the medicine container; the locking mechanism is configured to lock and unlock the injection plunger along the axial direction of the pen body; the identification member is connected to the pen body and is linked with the locking mechanism, when the pen syringe has not injected medicine, the identification member is in a to-be-injected state capable of moving along the axial direction of the pen body, and when the identification member moves a preset stroke, the identification member can drive the locking mechanism to unlock the injection plunger; after the pen syringe injects medicine, the identification member is in an injected state locked by the locking mechanism. The pen syringe of the present application can lock the injection plunger through the locking mechanism before injection to prevent accidental triggering, and after completing injection, the state of the identification member can be used to quickly identify whether the pen syringe has been used to prevent incorrect handling.
Owner:WUXI NEST BIOTECHNOLOGY CO LTD

Safety pen needle assembly with active sheath

PendingCN121843732AInfusion needlesPen InjectorMedical product
The present application relates to an active sheath subassembly for the needle injection end (3) of a disposable sterilized needle assembly dedicated to use with a pen syringe (42), the active sheath subassembly comprising a primary package (45) containing a sterile medical product (47), together constituting a medical needle injection system. Five variations of a needle injection end active sheath subassembly are disclosed. The present application also relates to component parts of a needle injection end active sheath subassembly, i.e. An immovable component part (14), a first movable component part (15) and a second movable component part (16), as well as a unit package (13) of a needle assembly comprising such a sterile package and a user package comprising a set of said unit packages (13), and preferably a pen syringe (42). The sheath subassembly is mounted on a hub (1) of the needle assembly and is configured to activate a cladding of a needle injection end (3) with an end point (4) and / or a needle non-injection end (5) with an end point (6) prior to detaching the needle assembly from a pen syringe (42). Furthermore, the present application relates to a disposable sterilized needle assembly provided with a needle injection end active sheath subassembly according to the present application, and a medical needle injection system provided with a disposable sterilized needle assembly according to the present application.
Owner:PENTAMASTER MEDIQ SDN BHD

Pen cartridge holder for pen injectors (DP1-S00)

ActiveCN310002670SPen InjectorPharmacy medicine
1. Name of the product in this design: Pen refill holder for pen-type syringe (DP1-S00). 2. Intended use of this design: The overall purpose is for injecting drugs, and the partial purpose is for containing medicine bottles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view. This design is a partial view; the area not covered by gray is the part for which protection is sought. The enlarged view of part A is an enlarged view of part A in perspective view 4.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Setting-correcting mechanism for a pen injector and pen injector comprising such mechanism

PCT designated stageWO2026077987A1Ampoule syringesAutomatic syringesPen InjectorRatchet
A dose setting-correcting mechanism for a pen injector comprising a rotatable coupling sleeve having a proximal end (1a, 101a) and a distal end (1b, 101b), a rotatable ratchet sleeve (2, 102) surrounding the coupling sleeve (1, 101) and splined therewith axially, a reset nut (3, 103), a setting ring (6, 106), a crown gear (4, 104), said elements arranged around longitudinal axis A. For setting a dose, rotation of the coupling sleeve (1, 101) in a first direction causes rotation of the ratchet sleeve (2, 102). For dose correcting, the coupling sleeve (1, 101) is firstly rotated with respect to the ratchet sleeve (2, 102) and the reset nut (3, 103) is rotated along with the coupling sleeve (1, 101), wherein rotation of the reset nut (3, 103) causes sliding movement between the teeth of the reset nut and the teeth of the crown, and as a result, the axial movement of the crown gear (4, 104) and decoupling the crown gear (4, 104) from the setting ring (6, 106) so that the setting ring (6, 106) rotates to correct the dose. A pen injector comprising such a mechanism.
Owner:NEMERA SZCZECIN SPOLKA Z OGRANICZONA ODPOWIEDZ +1

Safety needle device

ActiveCN114668934BPen InjectorGeneral surgery
A safety needle device comprises a hub configured to be connected to a pen-type injector, the hub comprising a side wall and an upper wall defining a cavity between them, the cavity extending between said upper wall and a lower aperture able to receive the pen-type injector; a needle attached to the hub, the needle extending along a longitudinal direction between a distal end configured to be inserted into a patient and an opposite proximal end configured to be connected to the pen-type injector; a back end shield slidable along the longitudinal direction and rotatable about the longitudinal direction within the cavity of the hub, the back end shield being irreversibly movable from an initial position before the pen-type injector is connected to the hub, through an intermediate position, to a locked position after the pen-type injector is removed from the hub; a resilient member arranged within the cavity and acting between the upper wall and the back end shield to push the back end shield along the longitudinal direction towards the proximal end of the needle; a locking device comprising at least one first locking member formed on the back end shield and at least one second locking member formed on the hub.
Owner:HTL STREFA

Dose viewing window for pen-injector

ActiveCN309812697SPen InjectorPharmacy medicine
1. The name of the design product: dose visible window of pen type syringe. 2. The use of the design product: the overall use of the design product is to inject medicine, and the use of the local appearance is to observe the injection dose. 3. The design points of the design product: the shape of the local part, the local appearance patent application is a local appearance patent application, and the area covered by the gray in the design picture or photo is the protection range of the local appearance design. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the top enlarged view is an enlarged view of the top view, and the bottom enlarged view is an enlarged view of the bottom view.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Pen-type injector (HFZSQ-II-D)

ActiveCN310071731SPen InjectorPharmaceutical drug
1. Name of the product in this design: Pen-type syringe (HFZSQ-II-D). 2. Purpose of this design: For injecting drugs. 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.
Owner:ZHONGSHAN HUIFENG MEDICAL PACKAGING TECH CO LTD

Automated systems and methods for foil packaging components

PendingAU2024390123A1Pen InjectorAutoinjector
System (100) and method of foil packaging components of a drug delivery device (110), e.g. autoinjector, pen injector, involving introducing first and second sheets of foil (101, 103) into a welding assembly with welding bars (106a, 106b), welding the sheets of foil (101, 103) together to form a first weld (112), providing a pen injector component (110) between the sheets of foil (101, 103) above the first welded, moving the sheets of foil (101, 103) downwards, and welding the first and second sheets of foil (101, 103) together to form a second weld (112) above the pen injector component (110). This can provide a foil packaging (120) with the pen injector components (110). Also disclosed is a system (200) and method for unloading or unpacking the foil packaged components of drug delivery device (110) which involves pushing a rod (210) between the welds in the foil packaging (120).
Owner:AMGEN INC

System for measuring and managing injection volume of pen-type injection device using stepper motor

PCT designated stageWO2026014586A1Drug and medicationsMedical devicesPen InjectorControl cell
The present invention relates to a system for measuring and managing the injection volume of a pen-type injection device using a stepper motor. The system for measuring and managing injection volume is mounted on a non-protruding pen-type injection device (1) to measure the injection volume of a drug. The system (100) for measuring and managing the injection volume of a pen-type injection device using a stepper motor comprises: a main body (110) detachably mounted on an injection device housing (10) of the pen-type injection device (1); a dose sensing module (120) including a dose setting knob contact wheel (121) and a stepper motor (125); a main control unit (130) for calculating the rotation angle of the dose setting knob (12); and an input / output interface (140) which is connected to the main control unit (130), receives a manipulation required for operation, and displays an operation state. The main control unit (130) acquires a drug dose calculation value through the calculated rotation angle of the dose setting knob (12), and then manages and displays the drug dose calculation value as injection history information.
Owner:KIM BYUNG JONG

Pen-type injector (Type A)

ActiveCN310002677SPen InjectorPharmaceutical drug
1. Name of the product in this design: Pen-type Injector (Type A). 2. Purpose of this design: For injecting drugs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view.
Owner:CHANGZHOU YOUZHU MEDICAL TECHNOLOGY CO LTD

Pen-injector

ActiveCN309757474SPen InjectorPharmacy medicine
1. Name of the product in this design: Pen-type Injector. 2. Purpose of this design: For injecting drugs. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: The top view enlarged view is an enlarged view of the top view; the bottom view enlarged view is an enlarged view of the bottom view.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Dose adjusting sound production mechanism and pen type injector

The invention discloses a dose adjusting sound production mechanism and a pen type injector, and relates to the technical field of medical instruments, the dose adjusting sound production mechanism comprises a pen body, a dose drum and an elastic piece, the pen body comprises an outer cylinder and a center cylinder, and the dose drum is suitable for rotating relative to the pen body corresponding to a rotation axis during dose setting and dose driving-out; the elastic piece is circumferentially limited between the dosage drum and the fixing positions through at least two fixing positions to form elastic beams, impact teeth are arranged on the inner surface of at least one elastic beam, and the impact teeth act on the fixing teeth under the elastic action of the elastic piece; the dose drum drives the elastic piece to rotate synchronously, so that the impact teeth periodically cross the radial highest positions of the fixed teeth and then impact the recesses between the fixed teeth, prompt sound is generated during mutual impact, and when the single injection dose is adjusted through the dose drum, the sound is made to play a prompt role; as the two ends of the elastic beam are limited by the dosage drum, the impact teeth can be ensured to impact more sufficiently, and clearer prompt sound can be made.
Owner:SHANDONG WEGO PREFILLS PHARM PACKAGING CO LTD

A rubber stopper for a pen-type injection device

ActiveCN224387866UComplete injectionAvoid residueInfusion syringesPen InjectorTherapeutic effect
The utility model discloses a convenient portable pen type syringe rubber plug relates to syringe rubber plug technical field, including rubber plug body, and the edge of rubber plug body side wall is integrally provided with the scraping strip, the chamfer processing between scraping strip and rubber plug body side wall, and the one end of rubber plug body is integrally provided with the push column, and the push column is coniform setting, and the rubber plug body on the edge of push column is provided with a plurality of anti -sticky ball, when using, the inner ring in rubber plug body and the push rod cooperation installation of syringe, through the injection effect of the medicine liquid in the syringe inside of rubber plug body that realizes the pull push rod, when the medicine liquid of rubber plug body pushes, simultaneously, the residual medicine liquid on the inner wall of syringe is effectively scraped up by scraping strip, effectively avoid the situation of residual medicine liquid, when the injection of medicine liquid, through the push column and enter the liquid outlet in the end of syringe, effectively realize the complete injection of the medicine liquid in the syringe, avoid the influence of the therapeutic effect of medicine liquid because of the insufficient measurement.
Owner:JIANGSU BEST NEW MEDICAL MATERIAL CO LTD

Calibration of insulin pens by an adjunct device

In some embodiments, an adjunct device for tracks time and / or dosage of a medicine. The device may include a connector for mounting the device to a deposable pen injector. The device may be configured to allow use of the native controls and injectors of the injector. For example the device may include a view port for viewing a dose indicator of the injector. The device may include one or more vibration sensors. A processor may be configured to differentiate increasing a dose, decreasing a dose and / or discharging the medicine based on the output of the sensors. Optionally a display of the device may be positioned for simultaneous viewing with the dosage indicator of the injector. For example a user may verify the accuracy of the adjunct device before performing a discharge.
Owner:G E EHRLICH 1995LTD

Pen injector carry case

PCT designated stageWO2026131834A1Intravenous devicesPen InjectorHigh density
The present disclosure relates to a pen injector carry case (10) suitable for storing ac- cessories (2, 3) of a drug delivery device (1). The carry case (10) comprises an elongate body (11) with at least one compartment (13, 14) configured to receive accessories (2, 3) for the pen type a drug delivery device (1). The body (11) is a single-piece component part made of polypropylene (PP) or of high-density polyethylene (HDPE) and comprises a receiving channel (16) with a locking element configured to releasably fasten a pocket clip (4) the pen type a drug delivery device (1).
Owner:SANOFI SA(FR)

Automated system and method for foil packaging of components

PendingCN122295213APen InjectorPharmacy medicine
A system (100) and method for foil packaging components of a drug delivery device (110) (e.g., an autoinjector, pen injector) are disclosed. The system and method include: introducing a first foil sheet (101) and a second foil sheet (103) into a welding assembly having welding rods (106a, 106b); welding the foil sheets (101, 103) together to form a first weld (112); providing the pen injector component (110) between the foil sheets (101, 103) above the first weld; moving the foil sheets (101, 103) downwards; and welding the first and second foil sheets (101, 103) together to form a second weld (112) above the pen injector component (110). This can provide a foil package (120) with the pen injector component (110). A system (200) and method for unloading or disassembling a foil package of a drug delivery device (110) are also disclosed, the system and method involving pushing a rod (210) between welded portions in the foil package (120).
Owner:AMGEN INC

Disposable pen type syringe

ActiveCN224099766UAutomatic syringesInfusion needlesPen InjectorSurgery
The utility model provides a disposable pen type syringe which comprises a syringe body, a needle head is fixedly connected to the top end of the syringe body, a multi-stage telescopic assembly is nested outside the needle head, and a limiting assembly for preventing the multi-stage telescopic assembly from freely moving is fixedly connected to the position, close to the bottom end, of the multi-stage telescopic assembly. A plurality of inserting holes matched with the limiting assembly are formed in the side wall of the injector body, a sliding groove matched with the limiting assembly is further formed in the position, close to the needle head, of the injector body, the exposed length of the needle head is adjusted through the multi-stage telescopic assembly according to the body type of a patient, and the multi-stage telescopic assembly is limited through the limiting assembly. The multi-stage telescopic assembly is prevented from moving freely, the needle head is fixed to the top end of the syringe body, the operation steps of the syringe are simplified, and the customer experience is optimized.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD

Pen type injector capable of accurately displaying residual dose

ActiveCN223959047UInfusion syringesIntravenous devicesPen InjectorSurgery
The utility model discloses a pen type syringe capable of accurately displaying residual dose, which comprises a shell, a dose adjusting part arranged on the shell, an upper rotating part arranged in the dose adjusting part, and a small dose part arranged between the dose adjusting part and the upper rotating part, when the dose is set, the small dose part moves upwards along the axial direction of the dose adjusting part, and when injection is carried out, the small dose part moves upwards along the axial direction of the dose adjusting part. The small dosage piece and the dosage adjusting piece are kept still, and when the dosage is set, the moving distance of the small dosage piece is matched with the set dosage. According to the pen type injector capable of accurately displaying the residual dose, the small dose piece is arranged between the dose adjusting piece and the upper rotating piece, when the accumulative set dose reaches the maximum dose of the injection pen, the small dose piece prevents the dose adjusting piece from intermittently setting the dose, the situation that the set dose exceeds the maximum dose, and consequently the injection dose is insufficient is avoided, and the injection quality is improved. The medication safety is improved.
Owner:ESC MEDTECH (SUZHOU) CO LTD

Self-destructing pen-type injection needle

PendingCN122297843APen InjectorInterference fit
This invention belongs to the field of medical injection device technology, specifically relating to a self-destructing pen-type injection needle. It includes a first base, a second base on the first base, a needle tube passing through the first and second bases, a cap including a cap flange, and a self-destructing component between the cap and the first base. The self-destructing component includes a top block on the lower surface of the cap flange and a release component on the top surface of the first base that engages with the top block. The release component is located in a release component mounting hole on the top surface of the first base. The cap body also includes two elastic rings, located radially inside and outside the top block respectively, adapting to existing pen-type syringes. The cap and the first base are connected by an interference fit between the lower sidewall of the cap and the outer wall of the first base. The self-destructing component, achieved through the coordinated movement of the elastic rings, the top block, and the release component, enables the self-destruction of the pen-type injection needle. The elastic rings are initially flush with the top block with a safety clearance, ensuring reliable self-destruction only when light pressure is applied and the cap is fully closed.
Owner:WEIHAI WEIGAO JIESHENG MEDICAL EQUIP