27 results about "Needle safety" 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.

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 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 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.

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.

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.

A safety lock syringe assembly comprising a barrel including a distal end and a proximal end, one or more lugs extending outwardly from an outer surface of the barrel, and a needle extending from the distal end, and a sleeve having threads that engage the one or more lugs, the sleeve includes a sleeve locking mechanism, wherein the sleeve threadably rotates in a first direction to a first position that exposes the needle, the sleeve threadably rotates in a second direction to a second position that shields the needle, and the sleeve threadably rotates in the second direction to a third position that engages the one or more lugs to the sleeve locking mechanism to irreversibly lock the shield to the barrel.

Systems and methods are disclosed that include providing a depth adjustable syringe having a barrel with a cylindrical body portion that defines a fluid chamber and a pair of opposing substantially flat depth guides that extend laterally from the cylindrical body portion. The depth guides include longitudinally extending rails, a plurality of detents, and safety stops disposed along an inner surface. A depth adjuster includes opposing channels that slidably engage the rails of the depth guides to position the depth adjuster along the barrel based on a desired depth of an injection. The depth adjuster engages the detents in a plurality of depth injection positions and engages the safety stops in a needle safety position, in which the needle guard at least partially surrounds a tip of a needle, and the syringe is disabled for subsequent use.

Systems and methods are disclosed that include providing a depth adjustable syringe having a barrel with a cylindrical body portion that defines a fluid chamber and a pair of opposing substantially flat depth guides that extend laterally from the cylindrical body portion. The depth guides include longitudinally extending rails, a plurality of detents, and safety stops disposed along an inner surface. A depth adjuster includes opposing channels that slidably engage the rails of the depth guides to position the depth adjuster along the barrel based on a desired depth of an injection. The depth adjuster engages the detents in a plurality of depth injection positions and engages the safety stops in a needle safety position, in which the needle guard at least partially surrounds a tip of a needle, and the syringe is disabled for subsequent use.

Safety syringe assemblies are described. A safety syringe assembly comprises a syringe barrel, a needle hub having a proximal end configured to be connected to the syringe tip and a distal end having an opening configured to receive a needle cannula, a needle plug comprising a distal end comprising a socket and a proximal end comprising a plunger connection element configured to engage a needle plug engagement element on the distal face of the plunger rod. The needle plug and the needle cannula are retractable inside the syringe tip or the needle hub.

The present application provides a kind of insulin needle safety protection structure, its structure includes a needle seat and a cover, the hollow inner edge of the needle seat can be provided with needle, the outer edge surface is appropriately provided with a first pivot group part, and a positioning part located at the opposite end of the first pivot group part, and the outer end of the cover corresponding to the first pivot group part is provided with a second pivot group part that can be pivotally combined, and a hollow part is formed adjacent to the second pivot group part, and the other end is provided with a fitting part, the fitting part is embedded with the positioning part after fixed, and the outer end surface and the inner wall surface adjacent to the fitting part of the cover are appropriately provided with a first notch part and a second notch part, and the two sides between the second pivot group part and the fitting part are provided with a surrounding plate, and a hollow part is formed in the inner edge of the cover, so that the cover can be covered on the needle seat after the use of insulin needle, not only can cover the needle body, but also can bend and damage the needle body, improve the protection effect.

A safety syringe includes a needle seat, an adapter disposed on the needle seat, and an injection barrel penetrated into the needle seat and the adapter. When an outer sleeve is located at a first position, a first annular rib of the outer sleeve is engaged with a flange of the adapter, such that the needle seat protrudes from the front end of the outer sleeve. A push rod penetrated into the injection barrel is used to take in and expel liquid medicine. When the outer sleeve is located at a second position, the outer sleeve accommodates the needle seat and the adapter therein and pushes against the flange of the adapter through a second annular rib, such that the outer sleeve is detachable from the injection barrel together with the needle seat and the adapter. The injection barrel can be used for needle-free dosing injection.

A system for serially injecting liquids includes a syringe body defining a syringe proximal opening and a distal needle interface, proximal and distal stopper members, forming proximal and distal chambers. The system also includes 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 stopper member distally. Moreover, the system includes a needle hub assembly coupled to the syringe body, the needle assembly including a needle. The needle defines a needle interior, and distal, middle and proximal openings. The distal, middle and proximal openings are fluidly coupled through the needle interior. Manipulating the plunger member to insert the proximal stopper member initially expels the first liquid from the distal chamber, then serially expels the second liquid from the proximal chamber.

The application relates to the technical field of medical equipment, and discloses a disposable syringe capable of preventing injury, which comprises a needle cylinder, a needle head is connected to the upper end of the needle cylinder, a rubber plug is movably sleeved in the needle cylinder, and a top rod is fixedly connected to the bottom of the rubber plug. Through the arrangement of the straight rod, the air cavity and the high-pressure gas chamber, the air in the air cavity is extruded into the cavity along with the pushing of the plunger by the ejector pin, so that the tail end sharp head of the straight rod pierces the high-pressure-resistant film, the high-pressure inert gas in the high-pressure gas chamber enters the cavity, the high-pressure gas can push the straight rod to move to the end of the needle head, and the straight rod enters the needle tube along the needle head and extends out of the needle tube. Since the rubber plug segment cut off firstly extends out of the needle tube, people will not be injured by the sharp end of the needle head when handling or destroying the contact needle head, the harm caused by the needle head injury can be avoided, even infection, and the needle head can be completely avoided from being reused.

A system for injecting includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. The system also includes a stopper member disposed in the syringe interior. The system further includes a plunger member coupled to the stopper member. The plunger member includes a rotatable member configured to insert the stopper member distally in the syringe interior relative to the syringe body with rotation of the rotatable member. The plunger member further includes a proximal portion proximal of the rotatable member configured to be moved distally to also insert the stopper member distally in the syringe interior relative to the syringe body to eject about microliters of fluid from the syringe interior.

A syringe safety system including a dispensing device and at least one safety syringe housing a syringe. The dispensing device includes a casing, a cap having a display screen, a microcontroller in communication with the display screen, and a carrier assembly. The carrier assembly configured to be positioned within an inner volume of the casing. The carrier assembly configured to support the at least one safety syringe around a central axis, rotate the at least one injector about the central axis, and dispense the at least one safety syringe out the distal opening in the casing for use.

The present invention provides reusable safety syringe devices for use as a teaching and practice tool. The safety syringe device of the present invention comprises four primary parts: (1) a first tubular member; (2) a second tubular member disposed within an inner annular cavity of the first tubular member; (3) a syringe secured within an inner annular cavity of the second tubular member; and (4) a plunger rod, wherein the plunger rod comprises a proximal end and a distal end, wherein the proximal end and distal end are connected by a shaft, wherein the proximal end comprises a first plunger rod flange having a first diameter and a removable second plunger rod flange having a second diameter, wherein the first diameter is smaller than the second diameter and the first plunger rod flange is located below the second plunger rod flange on the shaft.

The disclosure involves a syringe protector, which is includes of an outer protection sleeve, an inner installation sleeve, and a spring; the spring is installed at the outer sleeve wall of the installed inner installation sleeve, the said spring is compressed and installed in the said outer installation sleeve, and a syringe protector is formed; the said outer installation sleeve is comprised of a inner sleeve cylinder body, and a backstop claw, a guide sliding groove, an inner stop orifice, a spring installation seat, an inner locking claw; the said inner installation sleeve is comprised of an inner cylinder body, and a backstop claw, a guide block, an outer locking claw, a claw frame, a releasing incline, a syringe fixing claw, and a syringe flange fixing channel. The safety syringe described in the disclosure will be installed in the above syringe protector.