81 results about "Needle safety" patented technology

The present invention provides a method of assembling and packaging a medical needle device having a double ended needle (116), which comprises a container (170) having a closed end and an open end to receive a spring activated safety needle device (110) to provide passive needlestick protection to a non-patient end (118) of the needle (116). The method comprises performing the independent steps of (i) assembling a first sub-assembly (101) by mounting a shield (114) to a tubular housing (130) to form a telescopic device (104) and engaging the telescopic device (104) within the container (170), and (ii) assembling a second sub-assembly (102) by securing the double ended needle (116) within the needle mount (140), wherein the mounting element is provided on an external surface of the needle mount (140). The tubular housing (130) comprises (a) a mounting member on an internal surface to engage a mounting element of the needle mount (140), and (b) a spring to urge movement of the double ended needle (116) during use to a shielding position whereat the needle (116) extends at an angle oblique to a longitudinal axis of the tubular housing (130) to place the non-patient end (118) of the needle (116) at a location adjacent to an interior wall of the tubular housing (130). The method further comprises inserting the second sub-assembly (102) into the tubular housing (130) to secure the mounting element of the needle mount (140) to the mounting member of the tubular housing (130) to unite the second sub-assembly (102) to the first sub-assembly (101) to enable the spring to urge movement of the double ended needle (116) during use to a shielding position. Finally, the method comprises applying the closure a label (124) over the open end of the container (170) to seal the medical needle device 110 within the container (170).

A syringe safety system may include a sleeve. The sleeve may include a guide track formed in the sleeve. The guide track may have a guide pin retention portion, a travel portion, and a lockout portion. The syringe safety system may include a collar having a guide from an exterior surface of the collar. A spring may extend between and be coupled to the collar and the sleeve. A cap may engage the sleeve. The cap may be configured to retain the guide pin in the guide pin retention portion of the guide track. When the cap is removed, the spring advances the guide pin into the travel portion of the guide track.

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.

Advanced catheter placement systems require disengaging a needle from the guidewire without disturbing a position of the guidewire within the vasculature. Embodiments include withdrawing the needle proximally and drawing the needle over a splitter system that includes a splitter wedge. The splitter system separates the needle along a longitudinal axis. A portion of the guidewire can then pass between a first portion and a second portion of the needle, allowing the needle to disengage the guidewire. A catheter disposed on a proximal portion of the guidewire can then be advanced thereover into the vasculature. A needle safety system can adhere a puncture-resistant adhesive tape to the split portions of the needle. The tape can encapsulate the portions of the needle mitigating any damage or trauma caused by sharpened edges of the needle portions.

This disclosure relates to a needle safety device (1) for a medical device, particularly for a medical injection device (100), the needle safety device (1) comprising: a hub portion (10) defining a longitudinal axis (11), wherein the hub portion (10) includes a cannula (12) extending substantially along the longitudinal axis (11) from the hub portion (10) and a carrier element (60) disposed on the cannula (12), wherein the cannula (12) and the carrier element (60) are configured to move together with respect to the hub portion (10) along the longitudinal axis (11); and a tubular arrangement (20) movably disposed on the hub portion (10) along the longitudinal axis (11). The tubular arrangement (20) is movable relative to the hub portion (10), wherein the tubular arrangement (20) is configured to move between at least an initial position (24) and an injection position (25), wherein in the injection position, the proximal end (12b) of the cannula (12) is configured to protrude through the septum (50) of the medical device, such that the cannula (12) is in fluid communication with the reservoir of the medical device, wherein the tubular arrangement (20) includes a coupling device (35) configured to engage with the carrier element (60) such that when the tubular arrangement (20) moves from the injection position (25) to the initial position (24), the proximal end (12b) of the cannula (12) is configured to be removed from the septum (50).

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.

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 discloses automatic puncture quantitative normal saline extraction equipment and a using method. The interior of an equipment box is divided into a first inner cavity and a second inner cavity which are arranged left and right through a first partition frame, a second partition frame and a third partition frame, and a plurality of first equidistant movable grooves and a plurality of corresponding needle cylinder through holes are alternately formed in the third partition frame up and down; the first movable grooves penetrate through the corresponding movable frame plates, needle cylinder tail wing clamping frames are arranged on the movable frame plates, a movable valve is arranged in the second inner cavity, one end of the valve is communicated with a cylinder head of a needle cylinder, and the other end of the valve is communicated with a normal saline bag. The needle head with the needle cap is clamped or loosened between the two needle head clamps, the needle cylinder and the valve automatically carry out normal saline output configuration, the needle cylinder and the needle head with the needle cap are automatically clamped and fixed, and the needle cylinder and the needle head with the needle cap rebound to be separated from the machine after being safely closed and fixed, so that the purpose of automatically extracting quantitative liquid is achieved.

A needle assembly includes a needle (130) and a needle cap (124) configured to encapsulate a needle tip after use. The needle cap is transitionable between (i) an extended position with respect to the needle cap, where the needle extends through a distal opening of the needle cap such that a distal tip of the needle extends distally beyond the distal end of the needle cap; and (ii) a retracted position with respect to the needle cap, where the distal tip is disposed within the needle cap. An obstructor, rotationally disposed within the needle cap transitions from a non-obstructing state to an obstructing state to prevent the distal tip of the needle from extending distally beyond the distal end of the needle cap in the obstructing state. Tension in a tether extending between a needle hub and the needle cap, enables decoupling of a medical device (114) from the needle cap.

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 present disclosure relates to a needle safety device (1) for a medical device, in particular for a medical injection device (100), the needle safety device (1) comprising: a hub portion (10) defining a longitudinal axis (11), wherein the hub portion (10) comprises a cannula (12) extending from the hub portion (10) substantially along the longitudinal axis (11), wherein the cannula (12) is configured to be moved along the longitudinal axis (11) relative to the hub portion (10); a first tubular element (20) being movably arranged on the hub portion (10) to move along the longitudinal axis (11); a second tubular element (30) being arranged on the first tubular element (20) such that the second tubular element (30) is movable along the longitudinal axis (11) together with the first tubular element (20), wherein the first tubular element (20) is at least partially enclosed by the second tubular element (30), wherein the second tubular element (30) comprises a contact surface (31) for establishing pressure contact with an injection area; wherein the first tubular element (20) and the second tubular element (30) are configured such that they allow for a rotation relative to each other; wherein the first tubular element (20) comprises a resilient member (60) and wherein the second tubular element (30) comprises a receiving member (70); wherein the resilient member (60) and the receiving member (70) are configured such that upon relative rotation of the first tubular element (20) and the second tubular element (30), at least a part of the resilient member (60) is caused to hit at least a part of the receiving member (70), preferably a hitting portion (72) of the receiving member (70), thereby generating an acoustic signal.

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.

1. The name of the design product: crochet needle safety eye forceps. 2. The use of the design product: for assisting in installing safety eyes and safety back buckles. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

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.

A safety syringe (100; 700; 1200) comprising: a barrel (104; 704; 1204) having an opening at an end thereof; a syringe plunger (108; 708; 1208) configured to move within the barrel such that an inward stroke of the syringe plunger causes a substance within the barrel to be expelled from the opening; and a sheath (112; 712; 1212) configured to cover at least partially the opening in the barrel after use of the syringe, wherein the safety plunger is decoupled from the sheath and is configured to couple to the sheath at a first point on the inward stroke and to decouple from the syringe plunger at a second point on the inward stroke such that the sheath is moveable independently of the syringe plunger and further movement of the sheath after decoupling at least partially covers the opening in the barrel.

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

The invention provides an indwelling needle safety clamp needle threading auxiliary mechanism which comprises a base, a needle base fixing assembly, a first double-shaft positioning assembly and a needle threading assembly, a second double-shaft positioning assembly is arranged at the top of the base, and the output end of the second double-shaft positioning assembly is fixedly connected with a first pneumatic clamping jaw; needle guiding frames are fixed to the two movable ends of the first pneumatic clamping jaw correspondingly, a needle guiding base is arranged between the two needle guiding frames and detachably installed between the two needle guiding frames through a first double-shaft positioning assembly, and needle guiding holes allowing indwelling needle heads to penetrate through are formed in the needle guiding frames and the needle guiding base correspondingly; an elastic sheet is further arranged in the needle guiding seat, and one end of the elastic sheet is fixedly connected with the interior of the needle guiding seat; according to the remaining needle fixing device, one end of the elastic piece gradually moves downwards and is attached to the surface of the remaining needle head, the remaining needle head is assisted to be fixed, and the situation that the assembly effect is affected due to excessive movement of the remaining needle head is avoided.

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).

Systems and methods are disclosed that include providing a blood collection tube with a unitarily molded barrel having a cylindrical body portion that defines a barrel cavity, a slot extending longitudinally along the cylindrical body portion, and opposing rails that extend longitudinally along edges of the cylindrical body portion formed by the slot. A dual-ended needle is retained within the barrel. A needle safety device having a pair of channels that receive the rails of the barrel is slidably engaged with the barrel between a first retracted position that exposes a venipuncture end of the needle for selective use of the blood collection tube holder and a second extended position that positions a needle tip shield of the needle safety device at least partially around the venipuncture end of the needle to protect a user from accidental needle sticks after use of the blood collection tube holder.

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 catheter system may include a catheter assembly and a needle assembly. The catheter assembly may include a catheter adapter that may include a distal end, a proximal end, a lumen, and a side port. The catheter assembly may include a catheter extending from a distal end of the catheter adapter and an extension tube. The distal end of the extension tube may be integral with the side port of the catheter adapter. The needle assembly may include a needle security element, which may be disposed within a security housing or catheter adapter. The needle assembly may include a guidewire advancement device coupled to the safety housing or the catheter adapter, and an introducer needle having a proximal end coupled to the guidewire advancement device.

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.