165 results about "Needle guard" patented technology

A prosthesis can include a shell and a needle guard coupled to a posterior portion of the shell. The shell can include a laminate having a base layer, a top layer, and a soft silicone gel intermediate layer disposed between the base layer and the top layer and of sufficient thickness for self-sealing of a needle hole therethrough. The needle guard can include a plurality of offset layers of offset, puncture-resistance structures that, in an expanded state, (i) collectively form a concave shape and (ii) provide a concave exterior surface along the posterior portion of the prosthesis for approximating a human anatomical feature. The needle guard can have a shape memory characteristic for urging the prosthesis toward the expanded state.

The disposable injection pen comprises an upper pen shell assembly and a lower pen shell assembly which are assembled and matched, the lower pen shell assembly comprises a pen cap and a protective shell clamped in the pen cap, and a bracket for supporting a pre-filled syringe is arranged on the inner ring of the protective shell; a pen cap spring extending towards the bracket is arranged on the pen cap; and the pen cap spring is in pressing fit with the axial edge of the needle protecting cap. According to the lower pen shell assembly, a protective shell installed in a pen cap lifts and supports a bracket, a pre-filled syringe can be fixedly installed in the bracket, a pen cap spring is arranged in the pen cap, the axial edge of a needle protecting cap is pressed and matched through the pen cap spring, the pen cap of a spring structure is arranged, the spring is pressed on the circumferential edge of the needle protecting cap, and therefore the pre-filled syringe can be fixed to the bracket. Therefore, the needle protecting cap is subjected to axial pulling-out acting force, the clamping structure is stable, and smooth pulling out of the needle protecting cap is guaranteed.

The utility model relates to the technical field of sewing machines, in particular to an outer shuttle frame and a rotating shuttle, which comprise an outer shuttle main body with an integral structure, a mounting cavity arranged in the middle of the outer shuttle main body, a guide groove concavely arranged on the side wall of the mounting cavity and a mounting surface arranged on the top end surface of the guide groove, and at least one arc-shaped limiting piece detachably arranged on the mounting surface. The arc-shaped limiting piece is used for limiting the guide rail of the inner shuttle frame in the guide groove, the side wall of the outer shuttle body is provided with at least one dust discharging hole communicated with the guide groove, the top edge of the outer shuttle body is provided with a thread pushing protrusion, a needle inserting groove located below the thread pushing protrusion and a needle protecting face connected with the needle inserting groove, and the needle inserting groove is used for insertion of a machine needle. The outer shuttle body is of an integrated structure, the structural stability is good, the upper threads are pushed outwards through the thread pushing protrusions, the upper threads are convenient to loosen, the needle protection faces are arranged for limiting and protecting the machine needles, dust in the guide grooves is discharged through the dust discharging holes, heat dissipation is facilitated, and the fault probability that the inner shuttle frame is clamped in the outer shuttle body is reduced.

An injector includes a housing, a needle, and a needle shield removably coupled to the needle. A guard assembly is coupled to the housing and includes a guard holder coupled to the needle shield and having at least one engagement feature extending radially inward and a needle guard extension removably coupled to the guard holder. The needle guard extension is coupled to the guard holder and separated from the housing in an initial position, coupled to the guard holder and coupled to the housing in an engaged position, and separated from the guard holder and coupled to the housing in an active position. The guard holder couples to the needle shield to remove the needle shield from the needle when the needle shield extension is moved from the engaged position to the active position.

An injector including: a housing, a cap detachably coupled to the housing, a ram assembly having a ram configured to pressurize a medicament container for expelling a medicament therefrom, the ram assembly including a trigger engagement member, an energy source associated with the ram for powering the ram to expel medicament from the medicament container, a trigger member disposed about an axis, the trigger member moveable between a pre-firing configuration and a firing configuration, wherein medicament is expelled from the medicament container when the trigger member is in the firing configuration, a needle guard moveably coupled to the housing, the needle guard movable between a storage position and a pre-injection position, wherein the needle guard moves from the storage position to the pre-injection position as the cap is detached from the housing.

To provide: a sewing machine which can accurately adjust the positional relation between a sewing needle mounted on a needle bar and a sword point or a needle guard of a shuttle mechanism; an adjustment method for adjusting the position of the shuttle mechanism with respect to the sewing needle in the sewing machine; and a sensor unit.SOLUTION: A sewing machine includes: a needle bar; a shuttle mechanism including a sword point and a movable body which has a needle guard; a shuttle shaft for rotationally driving the movable body; a position adjustment mechanism capable of adjusting a position of the movable body in an axial direction of the shuttle shaft; a frame 7 for accommodating the shuttle mechanism, a shuttle shaft and the position adjustment mechanism; a first sensor 4A which has a contact surface 433 that comes into contact, from one side in the axial direction, with respect to a sewing needle 31A arranged at an encounter position which is a position of the sewing needle 31A at a timing when the sword point supplements a loop formed at a needle thread, and which is for detecting a displacement amount of the sewing needle 31A in the axial direction; and an arm part 4B for supporting the first sensor 4A, and fixed to the frame 7.SELECTED DRAWING: Figure 10

Intravenous cannula devices configured to prevent blood backflow and needle prick injuries include a catheter assembly and a needle guard assembly. The catheter assembly includes a hub having a coaxial recess and a valve member positioned therein. The valve member is cylindrical and includes a distal surface having slits collectively defining prongs configured to open and close upon passage of a needle therethrough. Cannula devices configured to prevent needle stick injuries include a safety release component at a distal end of the needle guard assembly. The safety release component includes moveable locking elements configured to fit within an annular groove defined by a proximal portion of the hub upon movement of a needle through the safety release component. Proximal retraction of the needle through the safety release component causes the moveable locking elements to be displaced from the annular groove, thereby decoupling the catheter assembly from the needle guard assembly.

Disclosed are devices and methods for facilitating directed delivery of a medicament into a human organ of a patient. An apparatus to facilitate directed delivery of a medicament into a human organ of a patient may include a container configured to enclose the medicament, a needle having a passage therethrough and a sharp distalmost tip, and a needle guard at least partially surrounding a shaft of the needle. The needle guard may include a distal surface, wherein the sharp distalmost tip of the needle may be configured to extend through an opening in the distal surface. The needle guard may be moveable relative to the needle along an axis of the needle to control a distance from the distal surface to the distalmost tip of the needle.

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 invention relates to the technical field of sewing machines, in particular to an outer shuttle frame and a rotating shuttle, which comprise an integrally constructed outer shuttle main body, the middle of the outer shuttle main body is provided with a mounting cavity, the side wall of the mounting cavity is concavely provided with a guide groove and a mounting surface arranged on the top end surface of the guide groove, and the mounting surface is detachably provided with at least one arc-shaped limiting piece. The arc-shaped limiting piece is used for limiting the guide rail of the inner shuttle frame in the guide groove, the side wall of the outer shuttle body is provided with at least one dust discharging hole communicated with the guide groove, the top edge of the outer shuttle body is provided with a thread pushing protrusion, a needle inserting groove located below the thread pushing protrusion and a needle protecting face connected with the needle inserting groove, and the needle inserting groove is used for insertion of a machine needle. The outer shuttle body is of an integrated structure, the structural stability is good, the upper threads are pushed outwards through the thread pushing protrusions, the upper threads are convenient to loosen, the needle protection faces are arranged for limiting and protecting the machine needles, dust in the guide grooves is discharged through the dust discharging holes, heat dissipation is facilitated, and the fault probability that the inner shuttle frame is clamped in the outer shuttle body is reduced.

A catheter assembly may include a catheter, catheter adapter, needle, needle guard, and housing. The housing may be coupled to the needle guard and disposed within a lumen of the catheter adapter. The needle guard may include first and second resilient arms, which may include first and second curved portions, respectively. When the needle is in a ready position, the first and second curved portions may be urged by a shaft of the needle into retaining contact with an inner wall of the catheter adapter. When the needle is in the retracted position, the shaft may no longer bias the first and second resilient arms outwardly such that the retaining contact between the first and second curved portions and the catheter adapter is released, and the housing and the needle guard enclose a distal tip of the needle.

The invention provides a sewing machine which can synchronize the vertical motion of a machine needle and the rotation motion of a shuttle with good precision. The sewing machine includes: a needle bar; a main shaft for driving the needle bar; a shuttle shaft (8B) that rotates in conjunction with the rotation of the main shaft; a shuttle mechanism (8A) at least provided with: a shuttle hook (83) having a hook tip (83C) for capturing an upper thread penetrating through a needle attached to a needle bar; and a driver (84) having a needle guard (84C) that guides the needle by coming into contact with the needle, the shuttle and the driver rotating under the action of the rotational driving force of the shuttle shaft. And a second sensor (6B) that detects that the driver is disposed at a sensor rotation position, which is a predetermined rotation position. The second sensor is positioned further outward than the driver in the radial direction with respect to the center of rotation of the driver. The driver has a detected body (84F) that extends outward in the radial direction and is detected by the second sensor.

A method includes: protecting the entire length of a needle of a needle-based device protruding from a needle hub engaged with a body of the needle-based device by providing a needle guard, the needle guard being configured to completely surround the entire protruding length of the needle in a first state in which the needle-based device is not in use; and retracting the needle guard in a first direction toward the body of the needle-based device to extend the needle from the needle guard, thereby placing the needle-based device in a second state in which the needle-based device is in use. The method further includes: securely retaining the needle guard in the first state in which the needle-based device is not in use by applying a force in a second direction to return the needle-based device to the first state in which the needle-based device is not in use; and locking the needle guard in the first state in which the needle-based device is not in use using a lock formed on or outside the needle guard.

A device for performing injections in a patient includes a syringe holder with a needle guard, a cannula extending from the syringe holder, a needle slidably disposed over the cannula, and a slider on the syringe holder. The cannula has a blunt tip and a cannula length, and the needle has a sharp tip and a needle length that is shorter than the cannula length. The slider is coupled with the needle and is configured to slide the needle along the cannula from an extended position, in which the sharp tip of the needle is located at or immediately adjacent the blunt tip of the cannula, to a retracted position, in which the sharp tip is housed within the needle guard of the syringe holder.

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.

The utility model discloses a tattooing needle guard and tattooing equipment. The tattooing needle guard comprises a needle tube, a plug cover, a reset piece, a push rod, a metal rod and a needle head. The needle tube is of a hollow structure, the size of the front portion of the needle tube is gradually reduced to form a needle nozzle, and an opening is formed in the rear portion of the needle tube. The plug cover is located on the rear portion of the needle tube and used for blocking the opening. The first end of the push rod is located in the needle tube, and the second end of the push rod is located outside the needle tube. The third end of the metal rod is connected with the first end of the push rod; the head of the needle is located near the needle nozzle, and the tail of the needle is connected with the fourth end of the metal rod; the push rod reciprocates under the driving of external force, so that the head part of the needle head retracts into and extends out of the needle nozzle; the reset piece is connected between the push rod and the plug cover and accelerates the push rod to move when the needle head moves in the direction of retracting into the needle nozzle; the third end and the fourth end of the metal rod are each of a straight rod-shaped structure, and the metal rod further comprises a first bent structure connected between the third end and the fourth end. The elastic shoe has the advantage of being good in elasticity.

A tracking system for a coupling device includes a first connector having a needle extending from the first connector and a needle guard circumferentially surrounding the needle; a second connector removably coupled to the first connector, the second connector having an opening configured to receive the needle when the first connector is coupled to the second connector; a wireless transmitter disposed on one of the first connector and the second connector, the wireless transmitter configured to wirelessly communicate with an external device; and a shield case coupled to one of the first connector and the second connector, the shield case configured to move axially relative to the wireless transmitter to block and unblock the wireless transmitter.

This housing device includes a bottom body extending a longitudinal axis A, the bottom body being configured for receiving an injection device having an injection needle, a casing, a medical container arranged within the casing, and a needle guard axially movable with respect to the casing. The housing device also includes a top body, axially movable with respect to the bottom body between an initial position and an injection end position distally located with respect to the initial position, the top body including a proximal end and a plunger rod configured for pushing a stopper of the injection device in order to expel a medical product contained within the medical container; releasable attachment features for allowing releasable attachment and detachment of the top body and the bottom body; and a needle cover, axially movable with respect to the bottom body between an initial position and a retracted position proximally located with respect to the initial position.

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.

Disclosed are devices and methods for facilitating directed delivery of a medicament into a human organ of a patient. An apparatus (2500) to facilitate directed delivery of a medicament into a human organ of a patient may include a container (2504) configured to enclose the medicament, a needle (2502) having a passage therethrough and a sharp distalmost tip, and a needle guard (2506) at least partially surrounding a shaft of the needle. The needle guard may include a distal surface, wherein the sharp distalmost tip of the needle may be configured to extend through an opening in the distal surface. The needle guard may be moveable relative to the needle along an axis of the needle to control a distance from the distal surface to the distalmost tip of the needle.

This housing device (1) includes: a bottom body (3) extending a longitudinal axis A, the bottom body (3) being configured for receiving an injection device (10) having an injection needle (102), a casing (110), a medical container (101) arranged within the casing (110), and a needle guard (112) axially movable with respect to the casing (110). The housing device also includes: a top body (2), axially movable with respect to the bottom body (3) between an initial position and an injection end position distally located with respect to the initial position, the top body (2) including a proximal end (201) and a plunger rod (22) configured for pushing a stopper (107) of the injection device (10) in order to expel a medical product contained within the medical container (101); releasable attachment features (71, 73) for allowing releasable attachment and detachment of the top body (2) and the bottom body (3); and a needle cover (4), axially movable with respect to the bottom body (3) between an initial position and a retracted position proximally located with respect to the initial position.

Provided is an automatic syringe, comprising: a housing (1), a needle guard cover (2), a push rod (3), a sounding cylinder (4), an inner tube (5), a release ring (6), a driving elastic member, and a resetting elastic member. During use, a needle cylinder (9) is fixed in the housing (1); a needle head (91) protrudes from the front of the housing (1); the needle guard cover (2) is retractably attached to the housing (1); the needle guard cover (2) can push the release ring (6) to slide toward the rear end of the housing (1); after the release ring (6) moves to the rear end, a first clip (55) of the inner tube (5) releases the snap-fit position-limiting of the push rod (3); the push rod (3) pushes a piston (93) under the action of the driving elastic member to inject the liquid in the needle cylinder (9) into a part of the body to be injected, achieving automatic injection. After the injection is complete, the sounding cylinder (4) disengages from the position-limiting of the inner tube (5) and slides toward the rear end of the housing (1), in order to issue a signal that the injection is complete. The automatic syringe of the present solution uses eight component parts to achieve the automatic injection function of the pre-filled needle cylinder; in comparison with the prior art, the present solution has a simple structure and a small number of components, is simple in its principle of mechanism action, and is highly reliable.

The present invention provides a disposable injection pen, comprising an upper pen housing assembly and a lower pen housing assembly that are assembled and matched. The lower pen housing assembly includes a pen cap, a protective shell that is clamped into the pen cap, and a bracket that supports a prefilled syringe arranged on the inner circumference of the protective shell. The pen cap is provided with a pen cap spring that extends toward the bracket and presses against the axial edge of the needle guard. The lower pen housing assembly is supported by the protective shell installed in the pen cap, and the prefilled syringe can be fixed in the bracket. The pen cap is provided with a pen cap spring that presses against the axial edge of the needle guard. By providing a pen cap with a spring structure, the spring is pressed against the circumferential edge of the needle guard, so that the needle guard is subjected to an axial withdrawal force. The clamping structure is stable, ensuring smooth withdrawal of the needle guard.

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.

An elastic collar and a stopper cooperated needle puncture prevention device comprises: a catheter seat assembly, the rear end of which is provided with an anti-slip structure; a needle shield, which is provided with a needle through hole, a slide groove, and a slot; an elastic collar, which is sleeved on the needle shield; a stopper, which is slidably installed in the slide groove, one side of which cooperates with the needle tube, and the other side is supported on the inner wall of the elastic collar; a limit plate, which is installed in the slot and is provided with a stop hole; a needle seat, which sleeves the rear part of the needle shield; the needle tube, which passes through the catheter seat assembly, the needle shield, and the limit plate, and provides support for the stopper, and the rear end of the needle seat is fixed in the needle seat, and a protruding buckle is provided near the front end. Pull the needle seat backward to make the needle seat drive the needle tube to retreat, and when the needle tube retreats to the point where the protruding buckle is blocked by the stop hole of the limit plate, the front end of the needle tube retreats away from the stopper, and the stopper slides into the slide groove of the needle shield under the action of the elastic collar, thereby blocking the front end of the needle tube, and the needle tip is shielded in the needle shield, thereby improving the safety of the product.

The invention provides a sewing machine, a method for adjusting the position of a shuttle mechanism relative to a needle in the sewing machine, and a sensor unit, wherein the position relation between a needle installed on a needle bar and a shuttle tip or a needle guard of the shuttle mechanism can be adjusted with good precision. The sewing machine includes: 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 accommodates the shuttle mechanism, the shuttle shaft, and the position adjustment mechanism; a first sensor (4A) that has a contact surface (433) that comes into contact with the needle disposed from one side in the axial direction, said contact surface (433) being located at a joining position, which is the position of the needle (31A) at the time when the shuttle tip captures the stitch formed on the upper thread; and an arm part (4B) that supports the first sensor and is fixed to the frame (7).