50 results about "Pen needles" patented technology

The invention relates to the technical field of medical instruments, in particular to a hypodermic injection device which comprises a pen body, an insulin refill detachably connected to the bottom of the pen body, and a disposable pen needle matched with the bottom of the insulin refill. The push rod is movably arranged in the pen body, and the bottom end of the push rod is used for pushing liquid medicine in the insulin refill; a labor-saving assembly is mounted in the pen body; the labor-saving assembly comprises a first wedge-shaped block fixedly connected to the top of the push rod, a transmission sliding groove formed in the inner side of the pen body, a transmission sliding block slidably connected to the interior of the transmission sliding groove, a transmission rolling wheel rotationally connected to one end of the transmission sliding block and a second wedge-shaped block arranged in the pen body and capable of vertically moving. According to the invention, the inclined surfaces of the 60-degree wedge-shaped block I and the 30-degree wedge-shaped block II are matched, and the force conduction of the transmission roller is combined, so that the vertical thrust of the injection driving mechanism is amplified into horizontal thrust, the operation force is reduced by more than 70%, the thrust in the whole injection process is ensured to be stable, and pains and errors are relieved.

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 present invention relates to a pre-assembled reconstitution and injection device, comprising an injection section having a cartridge for holding a diluent or drug product and a reconstitution section having a vial for holding a drug, whereby the injection section may only be disassembled from the reconstitution section after activation of the device has occurred. In an embodiment for use with a pen needle, the reconstitution section comprises a vial needle hub having a reconstitution needle for piercing both the vial and cartridge. In an embodiment of the invention for use with a hypodermic needle, the injection section comprises a cartridge needle hub with a cartridge needle and male luer connection having threads for securing a hypodermic needle, and the reconstitution section comprises a needle hub with a vial needle and a female luer connection for engagement with the male luer connection.

The present disclosure provides a tubular needle cover of a pen needle assembly, the tubular needle cover comprising: a distal sleeve extending along a longitudinal axis between a proximal end and a distal end, wherein the distal sleeve comprises a first fastener; a proximal cover comprising a proximal wall extending in a direction transverse to the longitudinal axis, wherein the proximal cover comprises a second fastener, and wherein the first fastener is attached to the second fastener; and a proximal opening arranged in the proximal wall of the proximal cover, wherein the proximal opening and the distal sleeve are coaxial; and wherein the distal sleeve and the proximal cover are two separate components.

The utility model belongs to insulin pen needle field, specifically comfortable big plane insulin pen needle, including outer needle cap, the inner chamber fixed connection of outer needle cap has pen needle body, the top of outer needle cap is provided with expansion mechanism, the utility model discloses a rotation ring piece, makes rotation ring piece to be able to smoothly pass through the extension block that is pulled to the rotary plate and the rotating rod, the extension block can smoothly with the center of the mounting rod circle as the center, to the center of the fixed ring piece's one side that is far away from rotating, further in the rotation to certain distance after, through the contact of self and people's skin, increase the stability of pen needle body when using, reached when pen needle body is inserted to people's body inside, pen needle body is not easy when injecting insulin, take place big amplitude's shake or shake, thereby reduced because pen needle body is not enough stable when using self, and increased people's painful feeling condition, increased the comfortable feeling of pen needle body when using.

The application relates to an injection pen pre-filled needle carrier assembly and an automatic injection device. The injection pen pre-filled needle carrier assembly comprises a housing with a cavity, a carrier in the housing, the carrier being provided with a central through hole and at least one first clamping jaw extending towards the proximal end, and a pre-filled needle module comprising a syringe body and a needle cover at the proximal end of the syringe body, the syringe body being provided with a shoulder at the distal end of the needle cover. In the preset installation position, the first clamping jaw of the carrier is constrained by the inner wall of the housing and is contracted towards the center, and is clamped between the opening end of the needle cover and the shoulder. In the free state, the inner diameter of the first clamping jaw is greater than the outer diameter of the needle cover and the syringe body, so that the pre-filled needle module can be pushed into the preset installation position at one time.

The present invention provides a safe and convenient insulin injection pen, which relates to the field of medical device technology and aims to solve the problem in the prior art that insulin injection pen needles easily cause puncture risks. The safe and convenient insulin injection pen includes a needle assembly, which includes a telescopic sleeve, a first elastic member, a limiting mechanism, and a needle tube. The first elastic member is arranged in the telescopic sleeve, the top end of the first elastic member is connected to the upper end of the telescopic sleeve, and the bottom end of the first elastic member is connected to the bottom end of the telescopic sleeve. A perforation is provided at the top end of the telescopic sleeve. The limiting mechanism is connected to the telescopic sleeve and is unlocked when the top end of the telescopic sleeve is pressed downward. When the limiting mechanism is locked, the first elastic member and the telescopic sleeve are both in a shortened state, and the top end of the needle tube extends to the outside of the telescopic sleeve through the perforation. When the limiting mechanism is unlocked, the first elastic member and the telescopic sleeve are both in an extended state, and the top end of the needle tube is located within the telescopic sleeve. This reduces the risk of punctures.

The application relates to the technical field of insulin pen needles, and discloses a double-end anti-stabbing insulin pen needle structure based on rotation self-locking and a control method, which comprises a pen core frame, an inner needle cap assembly, an outer needle cap assembly and a protective cap, the front end of the pen core frame is provided with an outer thread cylinder; the inner needle cap assembly comprises a pen core column located in the inner needle cap assembly, two groups of arc-shaped plates symmetrically arranged at the rear end of the pen core column, a front-end protection assembly sleeved with the front end of the pen core column and a needle tube fixedly arranged at the middle part of the pen core column; the application adopts a double-end anti-stabbing design, front-end anti-stabbing: the front end of the needle tube is completely covered by a front-end protective cover before use, and the needle tube can be extended out only by being actively rotated and unlocked, so that accidental touch is avoided; rear-end anti-stabbing: the rear end of the needle tube is initially located in the rear-end protection assembly, and is automatically stabbed into the pen core through gear linkage only during installation, so that the risk that medical staff or patients are stabbed by contaminated needle heads is reduced; pen core connection and needle head unlocking can be completed through a simple rotating action, an extra tool is not needed, and self-injection of patients is facilitated.

The insulin injection pen comprises an injector body, an injection assembly and a limiting mechanism, the injector body comprises an opening, the opening is formed in one end of the injector body, the injection assembly comprises a needle seat and a needle tube, the needle seat comprises a containing cavity, the needle seat is inserted in the opening so that the needle tube can be conveniently installed, one end of the needle tube is connected with the needle seat, and the limiting mechanism is arranged on the needle tube. And the cavity is communicated with the accommodating cavity. According to the insulin injection pen, due to the adoption of the technical means of the limiting mechanism, when the insulin injection pen is in a working state, the limiting piece enables the needle seat to be firmly connected with the injector main body, the stability and accuracy of the injection process are ensured, and in a non-working state, the limiting piece is separated from the main body, so that the needle seat is convenient to disassemble and treat. According to the technical scheme, the problems that an existing injection pen needle is complex to disassemble and large in potential safety hazard are effectively solved, operation simplicity and use safety are improved, and then automation, convenience and safety of the insulin injection pen are achieved.

Provided is an insulin pen needle rear end protection device, which comprises: a housing (1), wherein the tail end of the housing (1) is arranged to be connected with an insulin injection pen; a needle holder (2) fixed in the housing (1), wherein an injection needle extending to the tail end of the housing (1) is arranged on the needle holder (2), a guide groove (22) is formed in the side wall of the needle holder (2), and a protruding block (23) is further arranged on the inner surface of the side wall of the needle holder (2); and a rear needle protective sleeve (3) arranged in the needle holder (2) in a penetrating manner, wherein a spring (4) is clamped between the rear needle protective sleeve (3) and the needle holder (2), and a positioning column (31) and an elastic clamping jaw (32) are arranged on the outer surface of the rear needle protective sleeve (3). When the insulin pen needle is connected to the injection pen, the rear needle protective sleeve (3) is compressed into the needle holder (2), the positioning column (31) moves in the guide groove (22) to a first position, and the elastic clamping jaw (32) is located on the side of the protruding block (23) away from the tail end of the needle holder (2); when the insulin pen needle is separated from the injection pen, the positioning column (31) moves to a second position along the guide groove (22) under the acting force of the spring (4), such that the rear needle protective sleeve (3) pops up, and the elastic clamping jaw (32) crosses the protruding block (23) and is limited by one side of the protruding block (23) proximal to the tail end of the needle holder (2), thus covering the tail end of the injection needle (21) while locking the rear needle protective sleeve (3).

A pen needle (10) includes a hub (34) supporting a needle (28) and a distal needle shield (14) that can retract to expose the needle during injection and return to the extended position after use and locked in the extended position cover the needle. A proximal needle shield (16) moves to an extended position with respect to the hub (34) to cover a proximal end (34) of the needle. A spring (64) extends between the distal needle shield (14) and the proximal needle shield (16) to bias each needle shield to the respective extended position. A locking member (78) on the distal needle shield cooperates with the hub to lock the needle shields in the extended position. An indicator (94) in the hub engages and couples to the distal needle shield (14) when moved to the retracted position. The indicator (94) moves with the distal needle shield (14) to the extended position where the indicator is visible through the distal needle shield (14) indicating that the pen needle is no longer usable.

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.

The application relates to the field of medical devices, in particular to a front-end needle-sticking-preventing insulin pen needle which comprises a shell, a needle seat fixed in the shell and provided with an injection needle extending out of the head end of the shell, a sliding buckle sleeved on the needle seat and in sliding cooperation with the needle seat, the outer surface of the sliding buckle being provided with a buckle part, a needle tip protection sleeve slidingly arranged in the shell, the inner wall of the needle tip protection sleeve being provided with a one-side-arranged elastic sheet, a spring being clamped between the needle tip protection sleeve and the needle seat, in an injection state, the needle tip protection sleeve being retracted into the shell, the needle tip protection sleeve being sleeved on the sliding buckle, the elastic sheet hooking the buckle part, and the needle tip of the injection needle being exposed, in a needle-withdrawing state, the needle tip protection sleeve extending out of the head end of the shell to cover the needle tip of the injection needle, the sliding buckle being driven to come off the needle seat, the sliding buckle being dislocated from the needle seat under the action of the elastic sheet, the end of the sliding buckle abutting against the end of the needle seat, and the needle tip protection sleeve being locked.

A pen needle for a delivery device includes a needle hub (32) supporting a needle (54) and a distal needle shield (70) that can be retracted during injection to expose the needle and returned to an extended position and locked in the extended position to cover the needle after use. A proximal needle shield moves relative to the needle hub from a retracted position to an extended position to shield or cover a proximal end of the needle when the needle hub is separated from the delivery device. A spring extends between the distal needle shield and the proximal needle shield to bias each needle shield to a respective extended position. The distal needle shield is coupled to the proximal needle shield in an initial position to hold the spring in a compressed state. The distal needle shield is depressed to decouple the distal needle shield from the proximal needle shield to allow the spring to expand to an extended state and move the shields to the extended position. A locking member can be provided to lock the proximal and distal needle shields in the extended position.

A pen needle (30) for a delivery device includes a hub (32) supporting a needle (54) and a distal needle shield (70) that can retract to expose the needle during injection and return to the extended position after use and lock in the extended position to cover the needle. A proximal needle shield (0.102) moves from a retracted position to an extended position with respect to the hub to shield or cover a proximal end of the needle when the needle hub is separated from the delivery device. A spring (130) extends between the distal needle shield and the proximal needle shield to bias each needle shield to the respective extended position. The distal needle shield (70) is coupled to the proximal needle shield (102) in an initial position to retain the spring (130) in a compressed state. The distal needle shield (70) is depressed to disengage the distal needle shield from the proximal needle shield (102) so that the spring expands to an extended state and moves the shields to the extended positions. A locking member (142, 156) can be provided to lock the proximal needle shield (70) and distal needle shield (102) in the extended position.

A pen needle magazine (10) comprising a plurality of compartments (14) each carrying a pen needle (40), and a pen needle carrier (60) disposed in each of the plurality of compartments (14), the pen needle (40) disposed in the pen needle carrier (60), wherein the pen needle carrier (60) includes a first pen needle path (62) and a second pen needle path (64), the first pen needle path (62) aids in removing the pen needle (40), and the second pen needle path (64) aids in discarding a used pen needle (40).

1. The name of the design product: tool pen needle. 2. The use of the design product: tool pen needle for use as a tool for repairing mobile phone devices. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention discloses a safe insulin pen needle which comprises a needle base, a fixing column protruding along with an injection needle is arranged on the needle base, and a buckle step is arranged on the surface of the fixing column; the injection needle is arranged in the protective sleeve in a penetrating manner, a spring is clamped between the protective sleeve and the needle seat, so that the protective sleeve can axially move relative to the needle seat so as to expose or cover the needle point of the injection needle, a convex edge is arranged on the outer wall of the protective sleeve, and a first limiting step and a second limiting step are arranged on the inner wall of the protective sleeve in the penetrating-out direction of the injection needle; the inner diameter of the second limiting step is smaller than that of the first limiting step; the needle sleeve is assembled and fixed with the needle seat, the protective sleeve is arranged in the needle sleeve in a covering manner, a through hole allowing the protective sleeve to extend out is formed in the needle sleeve, and the through hole limits the convex edge; the limiting block is located in the inner cavity of the protective sleeve and arranged on the injection needle in a sleeving mode, the first end of the limiting block is provided with a clamping jaw matched with the buckle step, and the second end of the limiting block is matched with the first limiting step or the second limiting step to stop the protective sleeve.

A pen needle cartridge (10) comprising: a plurality of compartments (14), each compartment carrying a pen needle (40), the pen needle (40) having an inner thread (44) and an outer thread (46); and, an inner shield (80) comprising an inner thread (82), the inner shield (80) disposed in each of the plurality of compartments (14), wherein the inner thread (82) of the inner shield (80) is configured to engage the outer thread (46) of the pen needle (40), and the inner thread (44) and the outer thread (46) of the pen needle (40) are threaded in different directions.

1. Name of the Design Product: Blood Collection Pen Needle Cover. 2. Use of the Design Product: This design product is used as the needle cover for installing blood collection needles in blood collection pens. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View of Design 1. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of foam processing and discloses a foam cutting pen with a support. The foam cutting pen comprises a pen body with a head end and a tail end; the pen needle assembly is arranged at the head end of the pen body, the pen needle assembly is provided with a connector and a heating pen needle, the heating pen needle is installed on the connector, and the heating pen needle is used for making contact with foam and melting the foam; the mounting body is positioned on the pen body; and the supporting frame is connected with the mounting body and used for supporting the pen body when the cutting pen is placed on the working table. In this way, under the action of the supporting frame, the cutting pen can be supported to enable the heating pen needle to be far away from the working table top when the cutting pen is placed on the working table top, the distance between the heating pen needle and the working table top can be increased, and the problem that when the cutting pen is placed on the table top only through the protruding structure, close to the heating pen needle, of the pen body, the heating pen needle cannot be heated is solved. And a user does not need to carry an independent bracket to support the cutting pen, so that the use convenience of the cutting pen is improved.

The invention relates to the technical field of insulin pen needles, and discloses a double-end puncture-proof insulin pen needle structure based on rotary self-locking and a control method.The double-end puncture-proof insulin pen needle structure comprises a refill frame, an inner needle cap assembly, an outer needle cap assembly and a protective cap, and an outer threaded barrel is arranged at the front end of the refill frame; the inner needle cap assembly comprises a needle core column located in the outer needle cap assembly, two sets of arc-shaped plates symmetrically arranged at the rear end of the needle core column, a front end protection assembly connected with the front end of the needle core column in a sleeving mode and a needle tube fixed to the middle of the needle core column. The double-end stab-resistant design is adopted, front-end stab resistance is achieved, the front end of the needle tube is completely covered with the front-end protective cover before use, the needle tube can stretch out only after active rotating unlocking, and mistaken touch is avoided. The rear end of the needle tube is initially located in the rear end protection assembly, the needle tube is automatically punctured into the refill only through gear linkage during installation, the risk that medical staff or a patient is punctured by a contaminated needle is reduced, refill connection and needle unlocking can be completed through simple rotating action, extra tools are not needed, and self-injection of the patient is facilitated.

The invention discloses a portable multifunctional meter pen, and relates to the technical field of electric power testing, and the meter pen comprises a meter pen main body and a plurality of detachable test joint modules. The various detachable test connector modules comprise a universal meter pen needle head, an alligator clip type connector, a pressing clip type connector, an experiment terminal jack type connector, a common terminal jack type connector, a double connector, an instrument and meter connecting part and a wire with a threaded interface. The meter pen main body and the common terminal jack type joint are provided with threaded interfaces to support the stacking combination of the test joint module; the two ends of the lead are provided with threaded interfaces, so that the meter pen body and the connectors can be connected, and the efficiency and convenience of electric power testing work are improved.

A male needleless connector having a tapered elongated tip conforming to ISO standards and a collar, the collar having an outer wall surface with a plurality of threads for connection to corresponding internal threads of a pen needle. The male needleless connector has a taper between a distal end of the elongated tip and an inner wall of the elongated tip. The male needleless connector is configured to receive a pen needle.

This invention provides a disposable, bidirectional, protective safety insulin pen needle, comprising a housing, a connecting tube, a needle tube, an upper sheath, a lower sheath, and a needle hub. The needle hub is fixedly disposed at the bottom of the connecting tube, and the needle tube is fixedly disposed within the needle hub, with its bottom end extending through the needle hub and its top end extending into the top of the connecting tube. The upper sheath is vertically movable within the connecting tube, and the needle tube portion is housed within the upper sheath. The upper sheath moves up and down within the connecting tube to cover or expose the top end of the needle tube. The housing is fitted over the connecting tube, and the lower sheath is inserted from the bottom of the connecting tube between the housing and the connecting tube, and can move up and down along it to cover or expose the bottom end of the needle tube. The top of the connecting tube is used to insert a standard insulin pen.

The utility model discloses an insulin loading and unloading needle device which comprises a sleeve, two through holes are symmetrically formed in the two side walls of the sleeve, an elastic pressing edge is installed in each through hole, a pressing head is installed on the lower portion of the outer wall of each elastic pressing edge, and a limiting head is installed on the lower portion in each elastic pressing edge. A through hole is formed in the middle of the inner bottom end of the sleeve, and four limiting tables are annularly distributed on the periphery of the inner bottom end of the sleeve. The insulin injection pen needle has the advantages that on one hand, the outer needle cap can be effectively limited under the action of the through hole, the elastic clamping edge, the pressing head and the limiting head, rapid separation of the insulin injection pen needle and the outer needle cap during installation is achieved, and on the other hand, the insulin injection pen needle can be shielded and protected during disassembly under the action of the sleeve; and the insulin injection pen needle head is prevented from accidentally injuring hospital personnel during disassembly, so that the safety during disassembly of the insulin injection pen needle head is better.

A multi-beveled needle point geometry for hypodermic needles such as pen needles. A proximal bevel is formed at a first angle of inclination, a pair of intermediate bevels at a second angle of inclination, and a pair of distal bevels at a third angle of inclination and differing angles of rotation. The second angle of inclination is substantially different than the first angle of inclination to define a marked apex at the intersections between the proximal bevel and the intermediate bevels. At least one smooth transition is typically provided between adjacent bevels, between a bevel and an outer surface of the needle, and / or between a bevel and the lumen of the needle.