54 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.

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.

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 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

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.

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 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 device may include a plunger rod sub-assembly, comprising: a housing, a plunger rod movably coupled to the housing; and a dial axially constrained by the housing, the dial configured to set a start-of-dose position of the plunger rod by axially translating the plunger rod, and to set an end-of-dose position of the plunger rod. The device may include a needle safety sub-assembly, comprising: a syringe barrel, a needle extending from the syringe barrel; and a shield configured to automatically release at the end-of-dose position to shield the needle.

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

The catheter system may include a catheter assembly (10) and a needle safety clip (26) located in a safety can (28) positioned proximal to the catheter assembly. The catheter system may also include a barrel (30), a needle hub (34) fixed to the barrel, an introduction needle (36) fixed within the needle hub, a catheter hub slider (42), a guidewire slider (54), and a guidewire (48) connected to the guidewire slider. In response to the movement of the catheter system from a first position to a second position, the guidewire slider pushes out the flexible arm (44) of the catheter hub slider, causing the flexible arm to disengage from contact with the needle hub. The catheter hub slider is configured to slide from a proximal position to a terminally advanced position.

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.

An insertion device for inserting a catheter into a patient is disclosed. The insertion device combines needle insertion, guidewire advancement, catheter insertion, and needle protection into a single device. In one embodiment, the insertion device includes a housing and a hollow needle extending distally from the housing. At least a portion of a catheter is pre-disposed on the needle such that the catheter is generally disposed outside of the housing. The insertion device also includes a guidewire and an advancement assembly configured to selectively advance a distal end of the guidewire out of a distal opening of the needle in preparation for distal advancement of the catheter. The advancement assembly is also configured to enable distal advancement of the catheter prior to sheathing of the needle after use. The insertion device is configured to be grasped and used by a user with a single hand during advancement of the guidewire and catheter.