36 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 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 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.

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 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.

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 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.

A removal device (121, 221) for removing and disposing of a pen needle (113, 213) connectable to a drug delivery device (111, 211) includes a body (123, 223) having a cavity (141, 241) for receiving the pen needle of the drug delivery device such that a patient end (116, 216) of a needle (115, 215) of the pen needle is covered by the body. An ejector (151, 251) is movably connected to the body (123, 223) for engaging the received pen needle (113, 213) and selectively ejecting the engaged pen needle from the body. The pen needle (113, 213) is securely retained within the removal device (121, 221) without exposing the needle (115, 215) of the pen needle until the pen needle (113, 213) can be properly disposed of, such as in a sharps container, thereby substantially preventing an accidental needle stick.

A needle hub for a pen needle is provided having an enlarged surface for contacting the skin of a patient. The enlarged surface is configured to have a size and shape such that a needle or cannula can penetrate the skin to a desired depth and allow substantially the entire exposed length of the needle or cannula to penetrate the skin to the desired depth. The surface of the needle hub can be formed by a central conical shaped member and an outer ring, the central shaped member forming a first contact surface having a surface area of about 1-5 mm 2 and the outer ring located at an outer peripheral edge and forming a second contact surface having a surface area of about 15 mm 2 to 50 mm 2 in combination. The present invention also relates to a method for injecting a medicament into a subject.

The utility model discloses a blood sampling pen needle unloading structure and a blood sampling pen using the same, the blood sampling pen comprises a shell and an ejection rod, the needle unloading structure comprises a needle unloading rod located in an ejection cavity, a needle unloading channel arranged on the ejection rod and a limiting blocking part arranged on the shell; the needle dismounting rod is provided with a handheld part, a mounting part and a guide column; the handheld part is located on the front section of the needle unloading rod, the peripheral side of the injection rod is sleeved with the installation part, the guide column is connected with the handheld part or the installation part, and the guide column is located in the needle unloading channel and slides front and back along the needle unloading channel. According to the scheme, the needle dismounting structure is compact, the space on the shell and the injection rod of the blood sampling pen is well utilized, the space utilization rate is good, the length of the needle dismounting rod is short, and therefore the whole blood sampling pen is more compact, and compared with a traditional tail needle dismounting structure and a traditional side wall needle dismounting structure, when a blood sampling needle is installed and a pen cap is not covered, the needle dismounting structure is convenient to use. Mistaken needle dismounting caused by mistaken touch of an external needle dismounting structure can be effectively avoided, and the use reliability and safety of the blood sampling pen are improved.

The utility model belongs to tattoo pen technical field, and disclose a kind of tattoo needle operation stability high's tattoo pen needle nozzle, including tattoo needle body, the rear end surface of tattoo needle body is fixed with connecting pipe, the inside of connecting pipe is equipped with limit slot, the inside of limit slot is equipped with limit block sliding, the outside of limit block is fixed with pentagonal block, through limit slot, limit block, it can be oriented and limit to the movement of tattoo needle body, prevent tattoo needle from appearing deviation or shaking in operation process, ensure the accuracy of tattoo needle operation trajectory, to improve the quality of tattoo, through pentagonal block, it provides stable and unique connecting mode for subsequent connection with other components, compared with traditional round or square connection, pentagonal block can better transmit torque and force, reduce relative rotation, ensure the stability of tattoo needle when running.

A patient-specific guide system and method for performing bone resection for ankle arthroplasty includes a bone guide device body and a bone resection block. The bone guide device body includes a patient-specific surface for engaging a surface of a talus or tibia, and a first pin hole and a first socket in the bone guide device body. The bone resection block is removably inserted into the first socket, receives a first pin insertable into the first pin hole, and includes a resection guide surface. The system further includes a floating bone trial attached to the bone resection block via a floating bone guide device. The floating bone trial receives a chamfer spacer and a guide device for further resection of the bone. The system further includes a pen needle for engagement with the resection guide surface to confirm a resection depth. The bone guide device body includes an alignment pin and a resection block snap lock feature.

A device (25) is provided to aid in needle insertion of an injector, such as a safety pen needle (10). The device (25) includes a housing (30) having a mounting surface (38) configured to contact a skin surface (78), and a hole (46) configured to receive the injector (10), wherein the hole (46) is configured allow the injector (10) to bottom out on the hole (46) to aid in the needle insertion. An LED (70) may also be provided to illuminate the housing (30) for use in low light conditions.

In one aspect, a pen needle assembly is provided herein which includes a hub, and a needle fixed to the hub, the needle having proximal and distal ends with a lumen extending therebetween. The needle extends distally from the hub to define an exposed length between the distal end of the needle and the hub in the range of about 5.0 to 9.0 mm. The hub defines a post formed about the needle, the post having a distally-facing first skin engaging surface. The exposed length of the needle extends distally from the first skin engaging surface. The hub also defines a distally-facing second skin engaging surface which at least partially circumscribes the first skin engaging surface. The second skin engaging surface being located proximally of the first skin engaging surface. Advantageously, with the subject invention, a pen needle assembly is provided having two skin engaging surfaces which provide stability in achieving subcutaneous injections.