Abstract: A tail pressing type disposable safety lancet includes a shell, a lancet core, a spring and tail cover. The shell has an elastic arm for locking the lancet core, wherein: the tail cover has an active locking part for locking and the elastic arm has a passive locking part for locking correspondingly; the positions, the fitting time of the active locking part and the passive locking part correlate with the active and passive unlocking parts; when the tail cover is pressed during use, it forces the lancet core to unlock for ejection and puncturing, and the tail cover and elastic arm enter the locking state and cannot be used again. After use of the safety lancet, the tail cover permanently locks on the elastic arm of the shell, ensuring the safety of single use, and the user visually recognizes the tail cover is retracted at the tail of the shell.

Abstract: A lancing device utilizing tail handle to load and adjust depth, includes a shell, an ejection pin, and a tail handle. The tail handle rotates fit with shell in circumferential direction of lancing device and slides fit with shell in axial direction of lancing device; the tail handle has forward sliding limit relative to shell in axial direction; passive impact surface is arranged corresponding to active impact surface on ejection pin for adjusting puncture depth and loading, and passive impact surface is formed by spiral action surface on tail handle; in use state, rotating tail handle will drive position of impact point on passive impact surface to change in axial direction of lancing device, thereby adjusting lancet tip puncture depth; pulling the tail handle backward will force the passive impact surface to come into contact with the active impact surface, and drive the ejection pin to be loaded and locked.

Abstract: A lancing device with rear adjustment of penetration depth includes a cap, cap holder, ejection pin and shell, wherein: the lancing device has an external and medium depth adjusting sleeve. The ejection pin is located in the medium sleeve and the external depth adjusting sleeve is sleeved outside the medium sleeve; the external sleeve connects axially and circumferentially to the shell, and a rotary locating mechanism is between the external sleeve and the shell; the medium sleeve is connected circumferentially and axially in a sliding way, and a rotary moving mechanism is between the medium the external sleeve, and the medium includes a passive impact face relative to the active impact face of the ejection pin; the external sleeve includes a manual adjusting ring outside the lancing device at the middle and rear part, and rotates to drive the medium sleeve to move axially, changing the needle tip penetration depth.

Abstract: The present invention relates to a modified polyisocyanate and use thereof, in particular as a crosslinking component of water-soluble or water-dispersible coatings. The modified polyisocyanate is obtained by a reaction of a system comprising the following components: at least an aminosulfonic acid; at least a polyisocyanate; at least a tertiary amine; and optionally a polyether alcohol containing an ethylene oxide group. The modified polyisocyanate comprises at least an iminooxadiazinedione structure and at least an isocyanurate structure, the weight ratio of the iminooxadiazinedione structure to the isocyanurate structure being 1:300 to 1:5. The amount of sulfonate group of the modified polyisocyanate is 0.75% by weight to 1.1% by weight, based on the amount of the modified polyisocyanate as 100% by weight. The viscosity thereof is 500 mPa·s to 10000 mPa·s, as determined according to DIN EN ISO 3219:1994-10 at a temperature of 23° C. and a shear rate of 10 s?1.

Abstract: The present invention relates to a modified polyisocyanate and use thereof, in particular as a crosslinking component of water-soluble or water-dispersible coatings. The modified polyisocyanate is obtained by a reaction of a system comprising the following components: at least an aminosulfonic acid; at least a polyisocyanate; at least a tertiary amine; and optionally a polyether alcohol containing an ethylene oxide group. The modified polyisocyanate comprises at least an iminooxadiazinedione structure and at least an isocyanurate structure, the weight ratio of the iminooxadiazinedione structure to the isocyanurate structure being 1:300 to 1:5. The amount of sulfonate group of the modified polyisocyanate is 0.75% by weight to 1.1% by weight, based on the amount of the modified polyisocyanate as 100% by weight. The viscosity thereof is 500 mPa·s to 10000 mPa·s, as determined according to DIN EN ISO 3219:1994-10 at a temperature of 23° C. and a shear rate of 10 s?1.

Abstract: A pressing type disposable safety lancet with spring pilot structure consists of a shell, a lancet core, a spring and a trigger. The spring with a pilot structure at the outside makes the elastic force of the spring act along the ejection direction of the lancet core; the locking mechanism is formed by the cooperation of the elastic clamp at the tail of the trigger and the lancet core; the unlocking mechanism is formed by the front of pilot structure and the end of the elastic clamp through the unlocking bevel; when it's pressed during the use, the trigger moves backwards in the shell, the front of the pilot structure forces the end of the elastic clamp to open under the action of the unlocking bevel, and the lancet core is fired for puncturing under the action of the spring after the hook unhooks from the locking critical point.

Abstract: An insulin injection needle with needle tip protection has a needle body, needle base, main cover and outer sheath. The main cover is provided with the trigger tube, front casing and spring. The trigger tube is used to protect the injection section of needle body before use and the front casing is used to protect the injection section of needle body after use. Before use, the trigger tube extends out of the main cover and is in the state of protecting the needle, and the front casing is in the main cover; after, the trigger tube is in the main cover and the front casing extends out of the main cover and protects the needle. The unlocking of trigger tube and front casing correlate with injection readiness and the tail cover and needle base trigger the unlocking of trigger tube and front casing during the installation.

Abstract: A rotational locking type safety insulin pen needle includes a needle body, intermediate shield, front shield, tail cover and rear spring, wherein: the intermediate shield provides a rotating tube, the tube provides a beveled rail on the outer edge; the front shield provides a bevel acting part on the inner edge; the tail cover provides an elastic leg, the leg provides a front protection stopper; the rotating tube provides a first and second rail slot at intervals along the circumferential direction. The backward movement of the front shield when the needle is pushed to drive the rotation of the rotating tube and uses the coordination of the first and second rail slot on the rotating tube and the rear protection stopper on the tail cover to change the coordination relationship between the tail cover and the rotating tube, which provides the reliable locking protection of the tail cover after use.

Abstract: A rotational locking type safety insulin pen needle comprises a needle body, intermediate shield, front shield and a spring, wherein the intermediate shield has a rotating tube with a beveled rail on the outer edge; the front shield has a bevel acting part on the inner edge; the rotating tube has an elastic arm in the front with a front protection stopper; relative to the front protection stopper, the front shield has a guiding and a limit slot at intervals along the circumferential direction. The backward movement of the front shield when the needle is pushed to drive the rotation of the rotating tube and uses the coordination of the front protection stopper on the rotating tube with the guiding and limit slot on the front shield to change the coordination relationship between the front shield and the rotating tube, which provides the reliable locking protection of the front shield.

Abstract: A tail pressing type disposable safety lancet includes a shell, a lancet core, a spring and tail cover. The shell has an elastic arm for locking the lancet core, wherein: the tail cover has an active locking part for locking and the elastic arm has a passive locking part for locking correspondingly; the positions, the fitting time of the active locking part and the passive locking part correlate with the active and passive unlocking parts; when the tail cover is pressed during use, it forces the lancet core to unlock for ejection and puncturing, and the tail cover and elastic arm enter the locking state and cannot be used again. After use of the safety lancet, the tail cover permanently locks on the elastic arm of the shell, ensuring the safety of single use, and the user visually recognizes the tail cover is retracted at the tail of the shell.

Abstract: The invention relates to an aromatic allophanate polyisocyanate based on aromatic diisocyanates, containing a) ?15 mol-% of allophanate groups, based on the sum of urethane, allophanate and isocyanurate groups, b) ?50 mol-% of isocyanurate groups, based on the sum of urethane, allophanate and isocyanurate groups and c) ?1.5% by weight of monomeric diisocyanates, based on the total weight of the aromatic allophanate polyisocyanate. Furthermore, the invention relates to a process for producing aromatic allophanate polyisocyanates and their use in polyisocyanate compositions or two-component systems.

Abstract: An infant peripheral lancing device having safety buckle turn lock and anti-backward push button, wherein the safety mechanism is a safety buckle rotationally connected on a housing, and the first occupation gesture of the safety buckle during movement is between a push button and the housing and locks the push button; the second occupation gesture is in unlocking position. The push button is set with a locking mechanism, which comprises a first locking part on the push button and a second locking part on the housing or the cam and when the push button is moved backward, the first locking part and the second locking part meet to form a locking state. This solution always connects the safety buckle and the housing to prevent an accidental disconnection or loss and the lancing device present invention locks the push button automatically after using to make it easy for the user to identify the state of the push button.

Abstract: An improved disposable puncture depth adjustable safety lancet includes a shell, a lancet core, a spring, and a trigger. The shell has an adjusting ring at a front end thereof to adjust a puncture depth, the adjusting ring being sleeved and clearance-fit at an outside of the trigger head. The adjusting ring and the shell are rotationally connected in a peripheral direction and are fixedly connected in an axial direction, and a rotational locating structure is formed by the adjusting ring and the shell in the peripheral direction. The adjusting ring has an inner wall equipped with a rotating step face or rotating bevel, and rotating the adjusting ring locates the adjusting ring in different locating positions. The rotating step face or rotating bevel is configured to meet the collision face of the lancet core in different axial positions, thereby changing the puncture depth of needle tip.

Abstract: A sheath type disposable safety scalpel consists of the blade, handle and sheath, and when the sheath slides forward and backward in relation to the handle, the blade shows the extension and retraction states in the sheath, wherein: the positioning mechanism consists of the button on the sheath and the blade protection locking notch and blade exposure locking notch on the handle, and the unlocking inclined surface is set under the blade protection locking notch and blade protection locking notch, and when the button is pressed and pulled, the locking head touches the unlocking inclined surface and climbs out of the locking notch along the unlocking inclined surface to unlock, so that sheath slides between blade protection locking notch and blade exposure locking notch in relation to the handle. The scalpel breaks the monopolization of traditional positioning mechanism, improves safety of scalpel and improves user hand feeling and sound experience.