36 results about "Needle guard" patented technology

An intravenous catheter assembly comprising: a catheter tube; a catheter hub having a distal end and a proximal end, wherein the distal end is joined to the catheter tube and the proximal end defines a housing having inner space; a needle extending through the catheter hub and the catheter tube and defining an axial direction, wherein the needle has opposite proximal and distal ends, the distal end forming a needle tip; a needle hub attached to the proximal end of the needle; a needle guard slidably arranged on the needle, wherein the needle guard is movably retained in the housing of the catheter hub; a valve provided in the inner space in the catheter hub to prevent foreign contamination from entering the catheter hub; and a disc that is arranged proximal or distal to the valve or that is joint or linked to the valve.

The utility model relates to an anti-needling injector which comprises a needle head, a needle cylinder, a needle sleeve and a fixing mechanism. The needle is arranged at the end of the needle cylinder. A through hole is formed in the lower end surface of the needle sleeve; the size of the through hole is larger than the maximum outer diameter of the needle; the needle sleeve is connected with the needle cylinder through a fixing mechanism; by changing the relative position of the needle sleeve and the needle cylinder, the needle head can penetrate through the through hole and is exposed in the working environment; or the needle head can be hidden in the needle sleeve. The rectangular hole of the needle sleeve penetrates through the side wing of the needle head and then is fixedly installed on the needle cylinder through the fixing mechanism and the needle sleeve, the needle head can be completely exposed, and a worker can conveniently and normally use the syringe. The needle sleeve is screwed or rotated, the needle sleeve is fixedly installed on the needle cylinder through the fixing mechanism, the needle head can be completely hidden in the needle sleeve, and when the needle head is in a discarded state, the needle head can be prevented from stabbing a worker; and in a needle preparation state, the needle preparation device can be used for needle preparation operation preparation of workers.

The utility model provides a kind of needle blocking opening and closing device, it can realize needle blocking quick opening, it can also be applicable to the opening of needle blocking mechanism that small range deviation occurs in movable shaft simultaneously.It includes fixed plate, push rod assembly, driving mechanism, fixed plate is connected with driving mechanism, push rod assembly includes push rod, connecting rod, spring one, contact platform, magnetic piece, push rod is connected with fixed plate, push rod end is equipped with installation cavity, connecting rod bottom is arranged in installation cavity, the top end of connecting rod is connected with contact platform and is drawn out installation cavity, magnetic piece is fixed in the upper portion of push rod assembly, contact platform and push rod are equipped with spring one between, when contact platform is not contacted with movable shaft, contact platform and push rod have certain gap between, connecting rod can rotate within certain angle in installation cavity along with contact platform, and make contact platform and push rod end contact.

An automatic injection device for use with a syringe, including a housing element; at least one resilient element arranged to be located within the housing element; a needle guard slidably positionable with respect to the housing element; a control unit configured to be fixedly coupled with the housing element; a plunger rod biased axially forwardly under an urge of the at least one resilient element and configured to engage the control unit in a storage operative orientation, in which the plunger rod is prevented from forward axial displacement relative to the control unit under the urge of the at least one resilient element; and upon axial rearward displacement of the needle guard with respect to the housing element, the plunger rod is disengaged from the control unit and is permitted to be axially forwardly displaced relative to the control unit under the urge of the at least one resilient element.

The application discloses a syringe with a function of preventing puncture, and relates to the technical field of medical devices.The syringe comprises a syringe barrel, a syringe needle fixedly installed at one end of the syringe barrel, and a syringe piston rod slidably installed in the syringe barrel; the syringe further comprises a protection assembly arranged outside the syringe barrel, wherein the protection assembly comprises a connecting sleeve attached to the outer wall of the syringe barrel, a protection sleeve fixedly connected to one end of the connecting sleeve, and a protection head fixedly connected to the outer surface of the other end of the protection sleeve away from the connecting sleeve; the connecting sleeve and the protection sleeve are arranged to form a rigid protection outside the syringe, and the rigid shell can effectively prevent medical staff or patients from directly contacting the needle area, thereby reducing the risk of puncture caused by accidental contact (especially in emergency operations or when the line of sight is blocked); in addition, in field first aid or disaster sites, the reinforcing structure can resist the damage of falling impact, low-temperature brittle fracture and other harsh conditions to the traditional plastic shell.

Cryogenic methods, systems, and devices cryogenic system for alleviating lower back pain in a patient. The cryogenic device includes a handpiece having a size and shape suitable for supporting in a hand of an operator and a needle probe coupled to a distal portion of the handpiece. The needle probe includes a probe body, at least one needle coupled the probe body, and a silica supply tube extending within the needle lumen. The system includes an introducer configured to receive and position the at least one needle proximate to a location of a target tissue associated with lower back pain, wherein the cryogenic device is configured to provide a desired ice ball shape that remains on a distal portion of the introducer after the at least one needle is removed therefrom. The system further includes a needle guard configured to house the needle probe.

The utility model provides a needle protecting cap assembling and detecting all-in-one machine which comprises an upward-jacking positioning mechanism, an assembling mechanism, a rubber sleeve detecting assembly, a feeding dislocation mechanism, a riveting mechanism, a synchronous belt conveyor assembly and a carrier rotation carrying mechanism, and the upward-jacking positioning mechanism comprises an upward-jacking mechanism movable plate and an upward-jacking mechanism air cylinder. A Z-axis assembling movable frame, a Y-axis sliding table fixing plate and a Z-axis assembling main framework are installed in the assembling mechanism, and the rubber sleeve detection assembly comprises a side face detection suction head installation frame and a side face detection guide rail installation plate. The assembling and detecting all-in-one machine can run back and forth according to process requirements; the track can be a circular track or a circular track, and a transfer device is not needed, so that the assembly accuracy and the detection efficiency are improved, detection can be realized during operation, and defective products can be quickly and automatically removed; meanwhile, whether detection is carried out or not can be flexibly selected, and if no detection procedure is selected, the product can be taken out by the picking device after riveting is completed.

An autoinjector includes a housing extending along a longitudinal axis having a proximal end and a distal end. A needle extends at least partially from the distal end of the housing. A needle guard assembly is coupled to the housing. The needle guard has a needle guard extension that is moveable relative to the housing distally along the longitudinal axis from a retracted position where the needle extends distally past the needle guard extension and an extended position where the needle guard extension extends distally past the needle. A retainer is coupled between the needle guard extension and the housing to retain the needle guard extension relative to the housing in a blocking position and is moveable relative to the housing to an unblocked position to allow the needle guard extension to move relative to the housing to the extended position.

The present disclosure discloses an intravenous cannula that includes a catheter hub and tubular valve member adapted to allow a needle member to pass through. The valve member is defined with slits that allow the needle to pass through. Further, a valve closure member and needle guard assembly are provided, both adapted to close passage for fluid flow and prevent blood flow from the punctured vein of a subject. The needle guard assembly includes a body portion. A safety clip locks onto a flange defined in the body, and in a biased condition allows a needle to extend through the body and hub. Upon withdrawal of the needle from a proximal end of the hub, a safety pin disengages from the flange and arrests the tip portion of the needle within the device, thereby preventing needle prick injury upon withdrawal of the needle member from the hub.

1. The name of the design product: needle guard. 2. The use of the design product: the design product is used for limiting and protecting the machine needle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: this case is similar to the appearance design of the same product, which contains 6 items, design 1 is the basic design of the similar appearance design of this case, and design 2-6 is the similar appearance design of the basic design.

The present application relates to a access system comprising a needle hub comprising a distal end, a proximal end, an internal lumen extending through the distal end and the proximal end; a needle guard comprising a housing disposed within the internal lumen of the needle hub, and a needle comprising a sharp distal tip, the needle extending through the housing and biasing a first arm and a second arm of the housing outward toward the needle hub to facilitate retention of the housing within the needle hub, the access system configured such that when the sharp distal tip of the needle is withdrawn in a proximal direction beyond a second end of the first arm and a second end of the second arm, a duckbill valve of the access system closes and the first arm and the second arm move inward to facilitate removal of the housing from the needle hub. The technical solution of the present application can shield the sharp tip of the needle to prevent blood splatter and prevent exposure of related personnel to blood and blood-borne pathogens.

The utility model discloses a needle guard piece adjustable shuttle holder, including the shuttle holder main part, the lateral surface of shuttle holder main part is equipped with the needle slot of through -and -through, and the edge of needle slot swingly set up with the adjustable height's needle guard piece, is equipped with the adjusting hole and locking hole on the needle guard piece, and is equipped with the lower thread hole of cooperation with locking hole and the upper thread hole of cooperation with adjusting hole on the shuttle holder main part, and the locking screw for locking needle guard piece is set up in the inside of shuttle holder main part, and locking screw passes through lower thread hole and locking hole in proper order, the outside of needle guard piece is provided with the adjusting bolt for adjusting needle guard piece tightness, and adjusting bolt passes through adjusting hole and corresponding upper thread hole in proper order, designed the needle guard piece of longitudinal height adjustment, and the adjusting hole cooperation adjusting bolt is designed on the needle guard piece, makes needle guard piece can carry out the fine adjustment of height, cooperation locking screw and locking hole, guarantees after adjusting, can keep the locking and positioning of whole needle guard piece, is applicable to different size's machine needle.

The present invention provides a sewing machine capable of accurately adjusting the positional relationship between a needle installed to a needle bar and a shuttle tip or a needle guard of a shuttle mechanism, an adjustment method of adjusting the position of the shuttle mechanism relative to the needle in the sewing machine, and a sensor unit. The sewing machine is provided with: a needle bar; a shuttle mechanism provided with a movable body having a shuttle tip and a needle guard; a shuttle shaft that rotationally drives the movable body; a position adjustment mechanism capable of adjusting the position of the movable body in the axial direction of the shuttle shaft; a frame (7) that houses the shuttle mechanism, the shuttle shaft, and the position adjustment mechanism; a first sensor (4A) having a contact surface (433) that contacts the needle from one side in the axial direction and is disposed to the needle at a merging position, the first sensor being used to detect the amount of displacement of the needle in the axial direction, the merging position being the position of the needle (31A) at the time when the shuttle tip captures a loop formed by the thread; and an arm portion (4B) that supports the first sensor and is fixed to the frame (7).

A method of removing fluid from breast tissue surrounding a tissue expander includes identifying a location of an injection port of a tissue expander, and obtaining a needle including a needle shaft defining a lumen, the needle including a closed tip at the distal end of the needle shaft and at least one lateral opening formed in an outer wall of the needle shaft that is in fluid communication with the lumen. The method includes inserting the closed tip of the needle through skin of the patient, the breast tissue, and the injection port until the closed tip of the needle contacts a needle guard, visually confirming that the at least one lateral opening of the needle is not located outside of the patient's skin, and aspirating fluid from the breast tissue via the at least one lateral opening of the needle.

The utility model discloses a high-head sewing machine rotating shuttle which comprises a shuttle race body, a shuttle frame is rotatably arranged in the shuttle race body in a limited mode, a rotating shuttle thread hooking tip is fixedly installed on the outer side of the shuttle race body, and a moon-shaped ring used for guiding sewing threads is fixedly installed on the outer side of the shuttle race body. The outer circle of the moon ring is provided with a needle protection plate through a thread adjusting assembly; a thread fine adjustment hole is accurately machined in the specific portion, where the needle protection plate is fixed, of the outer circle of the moon-shaped ring, and the position of the needle protection plate can be finely adjusted by rotating an inner hexagon screw. The correct size position of the needle protection plate can be more conveniently controlled and adjusted; the effect of protecting the thread hooking tip of the rotating shuttle from being damaged easily is achieved; due to the fact that friction and collision between the machine needle and the thread hooking tip of the rotating shuttle are reduced, abrasion of the thread hooking tip of the rotating shuttle is greatly reduced, and the service life of the rotating shuttle is indirectly and remarkably prolonged.

A device for drug delivery includes a casing for housing a drug storage container including a dose delivery member. At least a portion of the dose delivery member extends through an opening in the casing. A guard is movable relative to the casing between an extended position and a retracted position. An interference arrangement provides a selected threshold of resistance to movement of the guard from the extended position to the retracted position during insertion of the dose delivery member into body tissue at an injection site. The interference arrangement has a first member and a second member engaging one another to retain the guard in the extended position. One of the first member and the second member moving if the selected threshold of resistance is exceeded to allow the first member and second member to slide past one another to allow the guard to move into the retracted position.

A system for detecting needle shield penetration in medical injection devices tagged with RFID is provided herein. The system includes a transport system configured to transport injection devices along a transport path, an RFID coupling element positioned at a read location along the transport path, an RFID reader configured to perform a singulated read of an RFID tag of each injection device as each injection device passes the RFID coupling element, and a processor coupled to a memory and configured to, for each RFID tag read by the RFID reader, record a carrier power required to send a signal from the RFID coupling element to the RFID tag that produces a backscatter signal response from the RFID tag, compare the recorded carrier power to a specified reference carrier power threshold, and identify the corresponding injection device as having a penetrated needle shield if the recorded carrier power is greater than the reference carrier power threshold.

Safety device for a medical container, injection device including this safety device and this medical container, and method for assembling this injection device This safety device (1) includes: a body (2) extending along a longitudinal axis A and configured for receiving a medical container (6) provided with an injection needle (66), a plunger rod (68), and a barrel (60), the barrel (60) including an emboss (62); a needle guard (3) axially movable with respect to the body (2) between an initial position and a safety position distally located with respect to the initial position; biasing means for moving the needle guard (3) from the initial position to the safety position; a retainer (32), movable between a blocking position, and a release position in which the retainer (32) no longer prevents the biasing means from moving the needle guard (3) to the safety position Tthe safety device (1) further includes: a spacer (5) arranged between the body (2) and the medical container (6) for compensating a gap the body (2) and the medical container (6); an axial slot (52) extending along the spacer (5) for receiving the emboss (62) of the medical container (6); first fasteners (55, 56) for axially fixing the medical container (6) to the spacer (5); and second fasteners (58, 574) for axially fixing the spacer (5) to the body (2).

Cryogenic methods, systems, and devices cryogenic system for alleviating lower back pain in a patient. The cryogenic device includes a handpiece having a size and shape suitable for supporting in a hand of an operator and a needle probe coupled to a distal portion of the handpiece. The needle probe includes a probe body, at least one needle coupled to the probe body, and a silica supply tube extending within the needle lumen. The system includes an introducer configured to receive and position the at least one needle proximate to a location of a target tissue associated with lower back pain, wherein the cryogenic device is configured to provide a desired ice ball shape that remains on a distal portion of the introducer after the at least one needle is removed therefrom. The system further includes a needle guard configured to house the needle probe.

A medical injection system comprising: a syringe provided with a barrel, a stopper and an injection needle; a plunger rod which engages with the stopper; an injection lock preventing relative movement of the plunger rod with respect to the barrel; and a needle guard comprising a trigger portion and configured to slidably engage the barrel so as to define a first position covering the injection needle and a second position not covering a predetermined portion of the injection needle. The trigger portion is adapted to disengage the injection lock from the plunger rod when the needle guard moves from the first position to the second position.

A venous device assembly includes a catheter adapter and a needle guard positioned within a bore of the catheter adapter. The needle guard can include a needle formed through a bore of the needle guard. The bore of the needle guard can include a first inner diameter along a first bore portion and a second inner diameter along a second bore portion, the second inner diameter being smaller than the first bore portion. A clip can be coupled to an outer surface of the needle guard. The clip can include a first arm that can include a first end guard and a second arm that can include a second end guard. The clip can be slid distally along the outer surface of the needle guard to move from an open configuration to a closed configuration to inhibit distal movement of the needle within the needle guard. A vascular access device is also disclosed. The venous device assembly prevents damage to the needle and injury to the patient's body during withdrawal of the needle from within the catheter adapter of the venous device assembly.

The utility model discloses a kind of safety protection device and syringe for injection, applied to syringe equipment field, safety protection device for injection includes needle guard, first limiting part and second limiting part are equipped on needle guard, the side wall of needle guard is also equipped with embracing ring, embracing ring is elastic structure;When needle guard is in initial state or protective state to shield needle head located on needle cylinder, embracing ring and the circumferential portion of recess portion abut along the radial direction of needle cylinder, first limiting part and limiting platform are connected along the axial direction of needle cylinder;When needle guard is in recovery state to release needle head, second limiting part and limiting platform are connected along the axial direction of needle cylinder, embracing ring and the rear end side wall of needle cylinder abut.The safety protection device for injection provided by the utility model can prevent needle guard from being irreversibly deflected due to jolt impact, avoid interference jam caused by deflection of needle guard when syringe is loaded and unloaded, and can ensure smooth movement of needle guard from initial state to recovery state and then to protective state.

The present disclosure discloses an intravenous cannula that includes a catheter hub and tubular valve member adapted to allow a needle member to pass through. The valve member is defined with slits that allow the needle to pass through. Further, a valve closure member and needle guard assembly are provided, both adapted to close passage for fluid flow and prevent blood flow from the punctured vein of a subject. The needle guard assembly includes a body portion. A safety clip locks onto a flange defined in the body, and in a biased condition allows a needle to extend through the body and hub. Upon withdrawal of the needle from a proximal end of the hub, a safety pin disengages from the flange and arrests the tip portion of the needle within the device, thereby preventing needle prick injury upon withdrawal of the needle member from the hub.

The present disclosure provides a puncture guiding needle. The puncture guiding needle includes a needle guard, a needle seat assembly, a first spring and a support, wherein the needle seat assembly and the first spring are disposed inside the needle guard; one end of the needle guard is detachably connected to the support; the needle guard is provided with a first clamping structure; a pressing portion is connected to the first clamping structure; the pressing portion is located outside the needle guard; the needle seat assembly is provided with a second clamping structure which is in clamping connection with the first clamping structure; a needle tube is disposed at one end of the needle seat assembly close to the support; the first spring is sandwiched between the needle guard and the end of the needle seat assembly away from the support.

A catheter assembly (10) includes: a catheter (22); a needle (12) having a sharp distal end; a catheter seat (14) for receiving the catheter (22) having a retainer (34) including a notch (36); a needle guard (20) connected to the catheter seat (14) when the needle (12) is in a first position; and a clip (40) disposed in the needle guard (20) and cooperating with the needle (12), wherein, when the needle (12) is in the first position, the clip (40) engages the catheter seat (14), and when the needle (12) is retracted to a second position, the clip (40) disengages from the catheter seat (14) via the notch (36) thereby covering at least a portion of the needle (12). The clip (40) is mounted in the outer shell (38) of the needle guard (20) via a shovel-shaped portion (66), the shovel-shaped portion having an outer wall (70) exposed outside the needle guard (20) in order to reduce the overall width of the needle guard (20).