47 results about "Safety syringe" patented technology

A dosage verification system for use prior to administering an injection of a medicinal fluid drawn into the fluid chamber of a medical syringe, the system comprising a medical syringe having a barrel with an outwardly facing, flat indicia display surface, a plunger having a plunger seal disposed inside and slidably engaging an inwardly facing wall of the barrel and a plunger handle projecting rearwardly from the barrel, and a hypodermic needle projecting forwardly from the barrel, all in combination with an imaging device configured to view and selectively capture, store or transmit a digital image of the plunger position relative to the barrel when a dose of the medicinal fluid is drawn into the fluid chamber of the barrel prior to an injection to verify and provide a record of the dosage drawn, and to alert a user prior to injection when an incorrect dosage is drawn into the fluid chamber of the syringe.

The present invention relates to a system for sequential injection of liquids, comprising a syringe body defining a proximal opening of the syringe and a distal needle interface, a proximal stop member and a distal stop member forming a proximal chamber and a distal chamber. The system further comprises a first liquid in the distal chamber and a second liquid in the proximal chamber, and a plunger configured to be manually manipulated to insert the proximal stop member distally. Furthermore, the system comprises a needle hub assembly coupled to the syringe body, the needle assembly comprising a needle. The needle defines a needle interior and a distal opening, an intermediate opening and a proximal opening. The distal opening, the intermediate opening and the proximal opening are fluidly couplable through the needle interior. Manipulation of the plunger member to insert the proximal stop member first expels the first liquid from the distal chamber and then sequentially expels the second liquid from the proximal chamber.

The invention discloses a retraction self-destruction type safety syringe, and relates to the technical field of syringes. Comprising an outer sleeve and a core rod moving in the outer sleeve, the core rod comprises a rod head and a rod body, the rod body comprises a rod body front section, a rod body middle section and a rod body rear section, the protective cap is clamped at the front end of the outer sleeve, the needle seat is clamped at an opening in the front end of the outer sleeve, an inner cavity is formed in the rear end of the needle seat, the needle tube is located at the front end of the needle seat, and the sealing plug is located in the circumferential direction of the rod head. The sealing plug is provided with a sealing plug protruding point and an O-shaped ring located in the circumferential direction of the front end of the needle base. According to the retraction self-destruction type safety syringe, the use safety is improved, repeated use is effectively prevented, the risk of cross infection and the risk that related personnel are punctured by needles are reduced, the psychological burden and fear of a patient are relieved, complex operation steps or additional tools are not needed, operation is more stable and reliable, and the safety of the syringe is improved. The unforeseen circumstances caused by misoperation are reduced, the generation amount of medical wastes is reduced, and the pressure of medical waste treatment can be relieved.

A dosage verification system for use prior to administering an injection of a medicinal fluid drawn into a medical syringe, the system comprising a medical syringe having a barrel with an outwardly facing, flat indicia display surface, plunger having a plunger seal disposed inside and slidably engaging an inwardly facing wall of the barrel and a plunger handle projecting rearwardly from the barrel, and a hypodermic needle projecting forwardly from the barrel, all in combination with an imaging device configured to view and selectively capture, store or transmit a digital image of the plunger position relative to the barrel when a dose of the medicinal fluid is drawn into the fluid chamber of the barrel prior to an injection to verify and provide a record of the dosage drawn, and to alert a user prior to injection when an incorrect dosage is drawn into the fluid chamber of the syringe.

The invention provides a safety syringe, and relates to the technical field of syringes, the safety syringe provided by the invention comprises a needle cylinder, a needle head, a shell and a sleeve; the shell sleeves the needle head; the sleeve is arranged on the shell in a sleeving mode and connected with the needle head, and the sleeve is configured to be capable of moving along the shell so as to drive the head of the needle head to stretch out of the shell or retract to the shell. By arranging the shell and the sleeve, the retractable function of the needle head after use is achieved, the puncture risk caused by exposure of the needle head after injection is completed is effectively avoided, and the operation safety is remarkably improved.

The invention relates to a safety syringe comprising a barrel, a needle seat, and a plunger, wherein the needle seat has a hook shank, a coupling deformation portion, and a barrel clamping portion; and the plunger has a stem body and a hook insertion hole that can be sleeved with the hook shank of the needle seat and compresses the coupling deformation portion for elastic deformation so that the barrel clamping portion of the needle seat is not engaged in the barrel seat clamping groove, and the hook insertion hole can engage the hook shank of the needle seat to move the needle seat. The safety syringe allows for stable placement and rapid retraction of the needle seat and effectively reduces waste of liquid medicine.

The figures illustrate a new, original, and ornamental design for a safety syringe for administering medical injections; Figs. 1.1-1.7 depict the safety syringe with the needle cap removed, and Figs. 2.1-2.7 depict the safety syringe with the needle cap not removed; Any broken lines or coloring are for illustrative purposes only and form no part of the claimed design.

The utility model discloses a safety syringe with a replaceable needle head. The safety syringe comprises a needle cylinder structure, a needle head structure and a needle seat structure, wherein the needle head structure is arranged on the needle cylinder structure and detachably connected with the needle cylinder structure, and the needle seat structure is arranged on the needle head structure and can be matched with needle tubes of different specifications and sizes. The needle base structure has the advantages that the needle base structure can be matched with needle tubes of different specifications and sizes, and therefore a large-specification needle cylinder is matched with a small needle tube.

A dental safety syringe with a plunger assembly, push lever slidably coupled to the piston rod, a carpule retainer slidably coupled to the piston rod, a barrel assembly detachably coupled to the plunger assembly with a carpule barrel sized to receive a carpule. A needle adapter is coupled to the carpule barrel and a sliding barrel slidably coupled to the carpule barrel. Finger grips extend from the sliding barrel, and an optional trigger is positioned adjacent the finger grip. A push lever lock is slidably coupled a finger grip. A safety cover is detachably coupled to the sliding barrel and is configured to extend past a syringe needle when the push lever is in the inactive position and expose the syringe needle when the push lever is in the inactive position. Operable with a single hand through all of its stages of use.

To provide a safe syringe with a vial capable of easily taking out an arbitrary amount of a liquid body from a sealed vial and filling it.SOLUTION: In a syringe with a plunger of the syringe as a vial, a movable sealing member inside the vial has a penetration part penetrating the movable sealing member inside the vial, and the penetration does not depend on the directionality of the longitudinal direction of the vial, and the syringe with the vial is opened according to the pressure to the movable sealing member inside the vial, and is closed when the pressure to the movable sealing member inside the vial is released. An injection needle, a syringe vial adapter body, a connecting cylindrical member, a vial inside movable sealing member, and the vial can be detachably and closely connected to each other.SELECTED DRAWING: Figure 2

The utility model discloses a multifunctional self-locking type safety injector which comprises an injection tube body, the top and the bottom of the injection tube body are closed, the bottom of the injection tube body is communicated and connected with an injection needle, a self-locking barrel is arranged above the injection tube body, a butt-joint tube body is connected between the injection tube body and the self-locking barrel in a sleeved mode, and the butt-joint tube body is provided with a plurality of through holes. A movable barrel is slidably connected into the self-locking barrel, the top of the movable barrel penetrates through the self-locking barrel to be connected with a pressing plate, the bottom of the movable barrel is connected with a piston rod through a bolt, a piston block is slidably connected into the injection pipe body, and through holes matched with the piston rod are formed in the bottom of an inner cavity of the self-locking barrel and the top of an inner cavity of the injection pipe body. According to the technical scheme, through mutual cooperation of the arc-shaped reeds, the rectangular reeds, the self-locking columns, the penetrating holes, the self-locking holes and other components, effective self-locking can be conducted, and therefore the self-locking device is not prone to sliding in the using process, injection and extraction of the self-locking device are not affected, and the using efficiency and the working efficiency of the self-locking device are improved.

The figures represent decorative designs for a novel and original safety syringe for administering medication by injection. Figures 2.1–2.7 show a safety syringe with the needle cap attached. Any dashed lines and colors are for illustrative purposes only and do not constitute part of the design for which registration is sought. 2.1) Perspective view; 2.2) Top view; 2.3) Bottom view; 2.4) Front view; 2.5) Rear view; 2.6) Right side view; 2.7) Left side view

We provide a system for continuously injecting liquids. [Solution] The system includes a syringe body defining a proximal opening and a distal needle interface; a proximal stopper member and a distal stopper member forming a proximal and distal chamber; a first liquid in the distal chamber and a second liquid in the proximal chamber; a plunger configured to be manually operated to insert the proximal stopper member distally; and a needle hub assembly coupled to the syringe body, the needle assembly including a needle. The needle has an internal structure and defines a distal opening, an intermediate opening, and a proximal opening, which are fluid-coupled through the internal structure of the needle. By operating the plunger member to insert the proximal stopper member, the first liquid is first discharged from the distal chamber, and then, continuously, the second liquid is discharged from the proximal chamber.

A safety syringe system that automatically shields a needle after an injection. A plunger extends into a barrel. An elastic return construct is provided that has at least one stretchable arm. The elastic return construct engages the barrel and positions each stretchable arm along the exterior of the barrel. A safety shield is provided that slides over a first end of the barrel. In a first position, the needle is protected by the safety shield. In a second position, the needle is exposed. The safety shield engages and stretches the elastic return construct when moved from the first position to the second position. A locking mechanism is used to lock the safety shield into its second position. The locking mechanism is released by elements displaced by movement of the plunger.

A safety lock syringe assembly (20) comprising: a barrel (22) comprising a distal end (23) and a proximal end (24), one or more lugs (30) extending outwardly from an outer surface (28) of the barrel (22), and a needle (36) extending from the distal end (23); and a sleeve (46) having threads (48) engaging the one or more lugs (30), the sleeve (46) including a sleeve locking mechanism (50) in which the sleeve (46) is threaded in a first direction to a first position exposing the needle (36) and the sleeve (46) is threaded in a second direction to a second position protecting the needle (36), the sleeve (46) is threaded in the second direction to a third position that engages the one or more lugs (30) to the sleeve locking mechanism (50) to irreversibly lock the sleeve (46) to the barrel (22).

The utility model discloses a safety syringe capable of preventing acupuncture injury, which comprises a needle cylinder, a piston block is slidably connected in the needle cylinder, a push rod is fixedly connected on one side of the piston block, a needle head is arranged on one side of the needle cylinder, a fixing ring is fixedly connected on the outer side of the needle cylinder and located on one side of the needle head, and a protective sleeve is arranged on the outer side of the fixing ring. The outer side of the protective sleeve is fixedly connected with a fixed frame; the utility model relates to the technical field of injectors, according to the safety injector capable of preventing acupuncture injury, the function of shielding and protecting the needle head is achieved through the arrangement of the fixing ring, the positioning block, the protective sleeve, the positioning groove, the anti-skid protruding block and the protective ring, the effect of preventing acupuncture injury is achieved, the protective ring can shield the hand in the process of sleeving the protective sleeve, and the safety is improved. The needle injury is avoided; by arranging the fixing frame, the connecting block, the connecting rod, the reset spring, the sliding block, the limiting block and the limiting groove, the function of installing the protective sleeve on the fixing ring is achieved, operation is convenient, and use is convenient.

The application discloses a disposable safety syringe and relates to the technical field of syringes.The disposable safety syringe comprises a barrel, a push rod arranged to slide along the axial direction of the barrel, a piston arranged on the end of the push rod and matched with the inner wall of the barrel, a nipple arranged on one end of the barrel and used for connecting a needle, the nipple being tapered along the axial direction, an annular recess arranged on the inner wall of the nipple and located in the middle part, a ring-shaped fixing member fixedly connected with the center of the end of the piston, and a blocking member arranged to be compressed in the ring-shaped fixing member, wherein the blocking member is in a radially compressed state in the ring-shaped fixing member in an initial state, and the blocking member is pushed into the annular recess and expanded after being compressed by the piston when the piston abuts against the end of the barrel.The disposable safety syringe is provided with the movable blocking member, the blocking member is pushed by the piston at the end of the injection of the syringe, enters the annular recess and expands, thereby blocking the inside of the nipple, avoiding the secondary use of the barrel, and avoiding the repeated use of the syringe.

The disposable sterile silicone-oil-free retractable self-destruction safety syringe is characterized in that the upper end of a needle head assembly is located in a cylinder cavity of a needle cylinder, a hanging buckle is formed on one side of the upper end of the needle head assembly, and an abutting arc surface is formed on the opposite side of the hanging buckle; a buckling inner hole capable of being matched with the hanging buckle is formed in the lower end of the sealing piston. When the buckling inner hole is matched with the hanging buckle, the sealing piston can drive the needle head assembly to move upwards, the needle head assembly is separated from the needle head cavity, the abutting arc face can gradually abut against the interior of the buckling inner hole, and the central axis of the needle head assembly and the central axis of the needle cylinder deflect. In the process, bubbles at the conical guide hole gradually move into the conical buckling hole along the conical guide hole under the pushing of the hanging buckle and the abutting arc face, in the injection process, the bubbles cannot be injected into the human body along with the needle head, and the injection safety is ensured.

The safety type injector comprises an injector body, a quantitative structure and a safety structure, scale marks and threads are arranged on the barrel face of the injector body, the quantitative structure comprises a first short pipe, a straight rod and an annular plate which are fixed into a whole, the first short pipe is rotationally connected with the injector body in a threaded mode, the straight rod is in sliding fit with a barrel end plate of the injector body, and the annular plate is located on the rear portion of the barrel end plate. A piston rod of the injector penetrates through the annular plate; a limiting block is arranged at the front end of the straight rod; the safety structure comprises a second short pipe and a parallel rod which are fixed into a whole, the second short pipe can penetrate through the first short pipe, the straight rod penetrates through the middle of the parallel rod in a sliding mode, and the limiting block limits the rear end of the parallel rod. The syringe has the advantages that the safety structure is arranged, the second short tube can movably cover the steel needle head during injection operation, and stabbing is avoided; the quantitative structure is arranged and matched with the scale marks, so that the syringe can perform quantitative injection for multiple times by sucking liquid medicine once.

A safety syringe assembly includes a syringe barrel, a needle hub having a proximal end configured to be connected to a syringe tip and a distal end having an opening configured to receive a needle cannula, and a needle plug including a distal end having a socket and a proximal end having a plunger connecting element configured to engage a needle plug engaging element on a distal face of a plunger rod. The needle plug and needle cannula are retractable within the syringe tip or needle hub.

A dental safety syringe with a plunger assembly, push lever slidably coupled to the piston rod, a carpule retainer slidably coupled to the piston rod, a barrel assembly detachably coupled to the plunger assembly with a carpule barrel sized to receive a carpule. A needle adapter is coupled to the carpule barrel and a sliding barrel slidably coupled to the carpule barrel. Finger grips extend from the sliding barrel, and an optional trigger is positioned adjacent the finger grip. A push lever lock is slidably coupled a finger grip. A safety cover is detachably coupled to the sliding barrel and is configured to extend past a syringe needle when the push lever is in the inactive position and expose the syringe needle when the push lever is in the inactive position. Operable with a single hand through all of its stages of use.

A dental safety syringe with a plunger assembly, push lever slidably coupled to the piston rod, a carpule retainer slidably coupled to the piston rod, a barrel assembly detachably coupled to the plunger assembly with a carpule barrel sized to receive a carpule. A needle adapter is coupled to the carpule barrel and a sliding barrel slidably coupled to the carpule barrel. Finger grips extend from the sliding barrel, and an optional trigger is positioned adjacent the finger grip. A push lever lock is slidably coupled a finger grip. A safety cover is detachably coupled to the sliding barrel and is configured to extend past a syringe needle when the push lever is in the inactive position and expose the syringe needle when the push lever is in the inactive position. Operable with a single hand through all of its stages of use.

The figures represent decorative designs for a novel and original safety syringe for administering medication by injection. Figures 1.1-1.7 show a safety syringe with the needle cap removed. Any dashed lines and colors are for illustrative purposes only and do not constitute part of the design for which registration is sought. 1.1) Perspective view; 1.2) Top view; 1.3) Bottom view; 1.4) Front view; 1.5) Rear view; 1.6) Right side view; 1.7) Left side view

A safety injector includes: an injection module having an injection cylinder and a pullable piston rod; a needle module including a needle seat and an injection needle; the needle seat having a seat body and a buckle. In installation state, a safety sleeve covering movably around the injection cylinder between an installation position and a protection position. In the installing position, a first end portion of the safety sleeve is near the buckle and the second end portion thereof is near the handhold portion; while in the protection position, the first end portion is protruded from the injection cylinder for covering the injection needle and the second end portion is near the head portion of the injection cylinder. An inner side of the sleeve body is formed with a first and a second annular flange; and an annular groove is formed therebetween for confining the buckle.

To provide a suitable system and method for safety syringes. [Solution] One embodiment relates to a system for injection, the system comprising: a syringe body defining an internal drug chamber; a stopper member configured to be inserted into the internal drug chamber to contain a drug within the drug chamber; a plunger member configured to be manually operated to insert the stopper member into the syringe body; and a needle having a proximal and distal end, wherein the proximal end has an anchor geometry configured to be at least partially inserted into the stopper member, thereby pulling the needle proximal together with the stopper when the stopper member is retracted, thereby at least partially containing it within the internal drug chamber.

To provide a low-profile reservoir-type injection system and a microliter range injection system.SOLUTION: The injection system 200 comprises a syringe body 310 having proximal and distal ends, a syringe interior, and a syringe flange 340 at its proximal end. The system also includes a stopper member disposed within the syringe. The system further includes a plunger member 350 coupled to the stopper member. The plunger member includes a rotatable member configured to distally insert the stopper member into the syringe interior relative to the syringe body upon rotation of the rotatable member 360. The plunger member further includes a proximal portion proximal of the rotatable member and configured to insert the stopper member in a distal direction within the syringe relative to the syringe body to expel a few microliters of fluid from within the syringe.SELECTED DRAWING: Figure 46

A safety syringe comprising a barrel having an opening at an end thereof and a bung positioned in the barrel and creating a volume between the opening and the bung. The safety syringe also comprises a handle portion secured to the barrel and a syringe plunger slidably engaged with the handle portion and moveable within the barrel on an inward stroke to drive the bung forwards within the barrel to cause a substance within the volume to be expelled from the opening. The safety syringe further comprises a rotation mechanism configured to rotate the syringe plunger within the barrel at a point during the inward stroke when the syringe plunger is in contact with the bung, such that a rotational force is applied to the barrel and a brake connected to the handle portion and configured to provide a frictional force to resist the rotational force applied to the barrel.

A safety syringe, including a syringe barrel, a needle holder, an injection needle, a ring plug, a push rod, a retractable rod, and a compression spring, where at least two guide grooves extending in an axial direction and passing through a retraction cavity are evenly distributed in an outer wall of the push rod along a circumferential direction; a stopper projecting portion protruding from a groove wall of each of the guide grooves is provided at a position of the guide groove close to a distal end. In the structure, based on the structures of the guide blocks and the stopper projecting portion, a larger breakthrough force is required during release of the potential energy of the compression spring, and there is almost no possibility of false triggering, ensuring better reliability.

The present disclosure provides a trigger mechanism, comprising an inner sheath and an outer sheath in a sleeve connection, corresponding ends of the inner sheath and the outer sheath are respectively provided with a first buckle group that is buckled, and further comprising a first trigger part that is insertable into the first buckle group and is arranged at the position of the first buckle group, the first trigger part is pushed by a pushing force to make the mutually buckled first buckle group separate from each other and be disengaged. The present disclosure also provides a safety protection device and a safety syringe, the safety protection device and the safety syringe of the present disclosure can realize stable and reliable triggering, needle withdrawal protection, synchronous locking of a piston push rod to prevent residual liquid leakage, and simple and convenient installation.

The utility model relates to the field of syringes, and particularly discloses a safety syringe capable of preventing a hand from being pricked, which comprises a syringe, a storage bin is arranged on the outer side of one end of the syringe, a protection mechanism is arranged in the storage bin, the protection mechanism comprises a protection frame and a rotating lug plate, and an elastic rotating shaft is connected between the protection frame and the rotating lug plate. A guide sliding block is installed in the rotating lug plate, a limiting sliding groove is formed in the position, located on the inner side wall of the storage bin, of the outer side of the guide sliding block, an injection needle is installed at the side end, close to the storage bin, of the injector, and a needle protection pad is installed at the position, located on the outer side of the injection needle, of the end of the protection frame. The protection mechanism is wholly shifted towards the position of the injection needle, under the action of the elastic rotating shaft, the two protection frames swing in opposite directions, after the needle protection pads at the ends of the two protection frames are in overall contact, the embedded grooves in the inner sides of the needle protection pads can cover the outer sides of the ends of the injection needle, and therefore the hand pricking can be prevented when a needle cap is connected in a sleeving mode.