TW201100135A - Hypodermic syringe with retractable needle - Google Patents

Abstract

Hypodermic syringe having a barrel which with an inner wall thereof defines a reservoir, a closing-off device near the first end of the barrel, and a plunger that is movably placed in the second end of the barrel, wherein the closing-off device comprises a circumferential wall that sealingly abuts the inner wall of the barrel, at the side facing away from the nozzle is provided with a recess extending along a centre line of the closing-off device and over the full width thereof, which recess merges into the through-opening, with in the recess two diametrically opposite flexible locking members, extending in the longitudinal direction of the recess and towards the inner wall, which locking members engage into diametrically placed locking grooves in the inner wall, and at the side facing away from the nozzle, at a circumferential part of the closing-off device situated outside of the recess, is provided with two diametrically opposite and radially outwardly extending blocking members, that engage in diametrically placed blocking grooves in the inner wall.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hypodermic syringe comprising: a barrel defining an accumulator by an inner wall thereof, the barrel including a body adjacent to the barrel a first section of the first end and a second section adjacent to the second end of the barrel, a blocking device disposed in the first section of the barrel for sealing Blocking the first end of the barrel, wherein the occlusion device has a through opening, the through hole is outwardly connected (debouch) in a nozzle adapted for coupling with a needle device, and a column a plug slidably disposed in the second section of the barrel for pushing a fluid out of the barrel when penetrating into the barrel, wherein the plunger is in the barrel The second end protrudes at least partially outside the barrel, and wherein a first end of the plunger is inserted into the barrel and includes a first coupling component. These provinces know that subcutaneous syringes (specifically, their mouths) are standardized, and various needles can be placed on the nozzle. However, the disadvantage of such subcutaneous injection is that the needle cannot be retracted into the barrel. With regard to retractable needles, the construction of the hypodermic syringe needs to be thoroughly adapted. [Prior Art] A nozzle has been developed for placing a needle on the top

Over time, retraction, which includes a 201100135 Ο 、, - plunger and - can be retracted to the barrel, the needle holder. The needle 2 is fastened to the first open end of the barrel by a shoulder having a shoulder, and the 邛 is provided by placing an additional shape of the second diameter step placed in the barrel The shoulders formed in the pockets of the barrel wall cooperate. Further, the first open end of the body is provided with a diameter step in the barrel for resting the needle holder. Thus, the needle holder is constrained between the first diameter step in the barrel and the additional annular body. At one end, the plunger is provided with a slot that can receive the distal ends of the flexible arms. The grooves have recesses and latches that if the &# dry-surface material surfaces act on the arms for disengaging the arms from the snap hooks on the flex arms such that the needle branches The seat is retracted by the plunger. The disadvantage of this hypodermic syringe is that both the barrel and the plunger must be constructed of a large number of separate components. In particular, placing the annular body and attaching it to the diameter step in the barrel is a _f force step. A reference construction is known from US 2003/0093038. In the hypodermic syringe, the arm is designed as a cylindrical wall member placed around the periphery of the needle holder and thrown against a plurality of small cams placed on the barrel and extending to the In the barrel. A reference cam is also placed proximate the first open end of the barrel for restricting the needle mount within the barrel. The disadvantage of this lower syringe is that it is also attributed to the cams, which are difficult to injection mold. When the barrel is removed from the injection mold, the cams are often damaged, which causes the correct restriction of the needle holder to be obtained. & The needle holder and the plunger are difficult to injection mold due to their particular shape. Finally, the hypodermic syringe has a relatively large dead space in the needle holder. It is an object of the present invention to provide an alternative embodiment of a hypodermic syringe having a retractable oblique* standard head support needle holder that can be retracted to the barrel needle for retraction钋瓸* Difficult needle holders, and the retractable needles can be manufactured in a simple manner using a minimum number of parts. The object of the invention is achieved by a hypodermic syringe according to the sequence: the device comprises a seal-sealingly abutting the circumference of the inner wall of the first section of the barrel, wherein the occlusion device is provided with a seal along the side facing away from the nozzle - a central line and a recess extending over the full width of the occluding device, the hole being merged into the through opening in the direction of the nozzle, the two diametrically opposed upper and lower sides of the recess The flexible first member is placed in the recess, and the locking member is locked by being twisted into the locking groove placed in the diameter of the inner wall to prevent - from the first end to Movement in the direction of the second end, wherein the locking members include a second coupling member for the first coupling member at or near the end thereof facing away from the nozzle, wherein the blocking device is Provided at the side of the mouthpiece at the circumferential portion of the occlusion device at the outer portion of the pocket, two diametrically opposed blocking members, the blocking members being substantially parallel to the center of the occlusion U The wire extends and extends radially outwardly, and the blocking member is engaged by Placed on the inner diameter wall of the weep blocking recess of the locking means preventing plugging from a black = a brother in one end to the movement direction of the first end of the. II is locked by a lock 6 201100135 placed on the two diameters of the inner wall of the barrel to lock the guard _ ^ , ο in the direction toward the second end of the barrel, and Use the groove on the barrel to block the blockage: 阻塞 the two diameters placed on the blockage prevention - in the direction towards the barrel _ where the lock four slots and 'moving, via-simple-shot Molding method; the grooves do not overlap each other 'the barrel can be in the end example' and the locking members and the locking grooves are facing

G

Forming a snap fit, and the blocking members and the St-ends of the St-ends form a snap-fit. The snap fits into the buckle or the locking member into the respective groove in the respective groove: the edge or the second embodiment is: the locking member has - the abutment facing the second end: ° 2 - the locking groove has - facing the abutting edge of the first end, ". another embodiment is a blocking member having an abutting edge or shoulder facing the first end, and - the blocking groove has - facing the second end Adjacent edge or shoulder. ▲ In one embodiment, the locking members and the locking recesses are formed in a direction toward the first end of the -heel. The force is engaged. A relatively component has a bevel that faces the first end and is at an acute angle to the centerline of the syringe and the locking recess has a design that makes it possible to bring the interior of the barrel into or near the locking recesses The core portion of the formed injection mold is removed from the barrel through the first end of the barrel, and the barrel is temporarily deformed to be substantially free of damage. In one embodiment, the barrel is facing away from it. The first section at one side of the first end is adjacent to a circumferential edge, and the first section has a An inner diameter of the barrel at a portion beyond the edge, wherein the 7 201100135 blocking groove is formed in the first section and communicates with the edge. In one embodiment, the blocking groove The bottom surface and the portion of the barrel beyond the edge are placed at substantially the same distance from the centerline of the barrel. This design makes it possible to shape the interior of the barrel or near the blocking groove. The mold portion of the injection molding slides out from the barrel through the second end of the barrel without damage. In the example of the item, the locking grooves and the blocking grooves are generally placed at the The same at the inner side of the barrel - the circumference. In the embodiment, - the first plane passing through the center line of the blocking grooves is placed substantially perpendicular to the embodiment through the locking recesses, the first a second plane of the centerline of the plane coincident with the centerline of the hypodermic syringe. An intersection line between a second plane and the end of the plunger for retracting the occlusion device including the needle device Having a first coupling component and the The blocking device has a second coupling member that cooperates with the first pure member. In this manner, the plunger can be coupled to the occlusion device for including the plunger or piston 'the occlusion device and the needle device The assembly is retracted to the body towel. In the embodiment, the first light member and the third pure member are adapted to unlock the locking member and the locking groove By unlocking the locking members, a freedom is created for moving the occlusion device into the barrel. The occlusion device is unlocked during the (d) (d) of the plunger or piston at the plunger ^ In the case of a pulling motion, the occlusion device is actuated. In an embodiment of the hypodermic syringe, the inner wall of the first section of the barrel is substantially cylindrical or in a cylinder The first end of the body has an increasing diameter process upwardly toward 201100135. Thus, the embodiment of the barrel embodiment is described as having the release condition for the occlusion device in the occlusion device. Used to adjust the size of _# Hezui, 4 used or intended to be used A hypodermic syringe, especially a hypodermic needle of a hypodermic device, or a standard needle or needle device that can be stored in the barrel after use, by providing a occlusion device having a retraction nozzle with a sealing material The tissue may be able to:: conventional needles of conventional needles, and to limit the subcutaneous syringes to the standard: the purchase of the shells is generally limited to the apparatus according to the invention. Due to the standard nozzle, the subcutaneous injecting pirate according to the present invention can also be interfaced to other devices such as a drip dispenser. In a first embodiment, the occlusion device includes - near the first end of the :: end of the barrel, wherein the diameter of the first end exceeds the standard needle mount - direct control. Thus, the portion of the needle device having a maximum diameter transversely measured longitudinally also fits the first end of the barrel. In one embodiment, the diameter of the occlusion device at the first end is more than six, preferably more than eight. A hypodermic syringe having such dimensions and thus providing a retractable needle device having all of the needles having a size according to the standard in the tissue can be used. In one embodiment, an inner diameter of the first section of the barrel comprising the generally cylindrical inner wall exceeds or equals one of the outer scales of the occlusion device. In this manner, the portion of the occlusion device having a maximum diameter transverse to the longitudinal dimension of the occlusion device 9 201100135 is also adapted to the second end of the barrel. In one embodiment, the shape of the end of the plunger inserted into the barrel in the deepest penetration substantially conforms to the shape of the end of the occlusion device present in the barrel. In this way, the volume occupied by the fluid is filled by the volume of the plunger, and thus the remaining volume of fluid remaining in the barrel after injection remains limited to a minimum. In one embodiment, the plunger has a filler body that at least partially fills the through opening. In this way, the fluid in the nozzle is also at least partially pushed out of the nozzle. In the embodiment, the hypodermic syringe includes a brake adapted to block the plunger toward the first m, -a·^^. J movement of the barrel. In the first position, the first end of the plunger adjacent to the barrel to be penetrated does not have its own surface attached to the mechanism of the sealing body. The second position allows the two bases to be penetrated to be connected to The occlusion device. In order to draw the fluid, it is necessary to couple the plunger to the barrel when the target is inserted into the barrel. However, if the plunger is pulled. In order to prevent the plunger from retracting, the occlusion device will also be moved in the same position, and the brake mechanism will face the plunger in the first position to make the plunger rotate. The connecting member and the blocking device are not light 2. The needle is housed in the barrel, and it is indeed necessary to make the staging member and the blocking device to be consumable. : The need to bring the brake mechanism to its second position deeper into ηI+, which ensures that the plunger can be placed into the body 4 so that coupling is achieved. 10 201100135 ― In the embodiment, the brake mechanism blocks the dam and the assembly of the occlusion device in the second position to prevent the assembly from piercing in the direction of the body of the barrel. When the blocked agricultural device is slightly pushed out of the body due to a stable pressing pressure, it will be difficult to push the blocking device back to the inside again. In this case, the needle must be inadvertently pierced into someone's skin. Risk, when the brake mechanism is in its second position, prevents the occlusion device from being pushed out of the barrel. - In one embodiment, the brake mechanism is configured to access the ram of the plunger In this way, it has made it possible to implement a simple configuration that makes it easy to access the operation. In an embodiment, the barrel comprises a guiding device for guiding the plunger In the embodiment, the guiding device (at least its first end) is threaded onto the plunger for securing the orientation of the plunger about the centerline of the hypodermic syringe. In one embodiment, The guiding device includes a first connecting member, and the beta barrel includes the same a second connecting member in which the first connecting member cooperates, wherein the first connecting member and the second connecting member are adapted for the guiding device to be coupled to one of the barrels. When assembled in the factory In the case of a hypodermic syringe, the occlusion device and the plunger are first introduced into the barrel. The guiding device can be placed on the guiding device to make the opening element at the second end of the barrel free. In one case, the guiding device can be placed in the opening of the guiding device partially inserted into the opening at the second end of the barrel and engaged to the plunger for guiding the rotation thereof In the second case, in order to fully couple the first coupling members with the second coupling members, the alignment of the plungers 11 201100135 to the (four) blocking device may be desirable. The plunger is sufficiently placed and fixed to the jaw member. The connecting member of the guiding device is in the barrel, the connecting member. The first clearing can be connected to the barrel in one embodiment. The plunger includes a rib extending in the longitudinal direction of the cassia plug, and the guide The device includes a distal end of at least a portion of the insertion position at which the plunger can be placed to surround the protruding portion of the rib. In this manner 'when the plunger is pushed in and the guiding device is guided. ^(d) [004] Continually, in one embodiment, the plunger includes a movement limiting member for inspecting (4) the guiding device on the barrel, the material member facing the plunger toward the barrel One of the directions of the two ends is moved and delimited. In this way, the position of the plunger with respect to the barrel is defined, wherein the barrel can be broken. In the case of tamping, the plug configuration has a function for disconnecting And splitting the plunger of the object, wherein the object is placed in proximity to the presence of the plunger in the "into the body." When the weakener is just outside the barrel, the plunger can split from the retracted assembly. The length of the hypodermic syringe is therefore roughly equally divided. In addition to the fact that the waste is being processed more efficiently, 'splitting is the risk of removing the needle from being accidentally pushed out of the barrel again. In one embodiment, the barrel containing the generally cylindrical inner wall is included. The second section has a cross section that is greater than or equal to one of the cross sections of the first section of the barrel. In this way, a volume for injecting or aspirating a larger amount of fluid can be obtained in the second section. In addition, it is possible to use the same in the hypodermic syringe regardless of the thickness of the subcutaneous 12 201100135 syringe: the barrel of the hypodermic syringe administered, for example, 3 cc fluid: the first port may have the same inner diameter over its entire length . In the case of a barrel for administering a larger hypodermic syringe, the barrel having an inner diameter of 2 can be designed to have a desired girth. Ο

In one embodiment, the plunger is provided with a filler that at least partially fills the recess and the through opening in the occluding device. In this way, the volume occupied by the fluid is filled by the volume of the plunger, and due to π, the volume of fluid remaining in the barrel after injection remains limited to a minimum. Since the plunger has a filling body that at least partially fills the through opening, the fluid in the nozzle is also at least partially pushed out of the nozzle. In the embodiment, the occlusion device has a rib extending around the occlusion device and extending radially outwardly at a distal end adjacent the first end of the barrel, wherein the rib is The plugging shock is integrally formed. The ribs ensure a sufficient seal between the occlusion device and the inner wall of the barrel. The aspects and methods described herein and/or illustrated in the drawings of the present application may also be used individually wherever possible. Such individual and other aspects, such as the filler at the end of the plunger (using the filler, the remaining volume of fluid remaining in the barrel after injection is limited to a minimum amount) may be relevant thereto. This is particularly the case for the patent application split case, which applies in particular to the methods and aspects described in the subsidiary. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a perspective view of a first exemplary embodiment of a hypodermic syringe in a disassembled situation; 201100135; A shows the first side view of the barrel; the middle occlusion device is located in the second side view of the lock figure display cylinder; the occlusion in the solid raft is located in the lock Figure 1C shows the details of the blocking part, and is blocked In the barrel; from the blocking member - two; the cross section of the hypodermic syringe containing T.1, wherein the plunger is in position; the consumption of the device has not been achieved and the suction of the fluid can be performed. ΠΓ,,士44· The mouth is unlocked from the barrel; the cross section of the subcutaneous razor 3, in which the occlusion device is shown in Figure 4, the subcutaneous syringe of Fig. 1 is connected to the plunger; Figure 5 shows the assembly of the Xi Shi and the plunger (4) micro-retracted cross-face, in which the blocking device has two machine exhibitions: two: 1:: 'in the cylinder' a side view of the barrel in which the brake mechanism is placed in the first position, and the inserted plug is located in the body. Figure 8 shows the side view of the different body, in which the brake mechanism is in the second position. The plunger that is pulled out is located in the body, Figure 9 shows & a where the brake; 1 body = '= figure + inserted plunger is located In the barrel, 14 201100135 FIG. 10A shows a perspective view of the guiding device connected to the barrel without using a connecting member, and FIG. 10B shows a front view of the guiding device connected to the barrel without using a connecting member; FIG. 11 shows that the guiding device does use Figure 12 shows a perspective view of the insertion plunger, a portion of the barrel and the guiding device 'where the guiding member is connected to the barrel using the connecting member;

Figure 13 shows a perspective view of a retracting plunger, a portion of the barrel and a guiding device, wherein the abutment cam on the plunger abuts the guiding member; Figure 14 shows a broken plunger, a portion of the barrel and a guide A perspective view of the device, Figure 15 shows a side view of a thickened hypodermic syringe; Figure 16 shows a side view of a thickened hypodermic syringe; and a second exemplary embodiment 17 shows a hypodermic syringe embodiment in the exploded condition perspective;

Figure 18A shows a first side view of the barrel; wherein the occlusion device is located in the lock, wherein the occlusion device is located in the second side view of the barrel shown in Figure 18B; Figure 19A shows the occlusion device In the position of the subcutaneous syringe of 17; wherein the plunger position is not yet achieved and the fluid suction can be performed. Figure 19B shows the cross-loading surface of the hypodermic syringe of Figure 17 with the closure 15 201100135 placed from the barrel Figure 19C shows the light connection to the plunger; wherein the closure assembly 91) shows the cross-face of the hypodermic syringe of Figure 17 and the assembly of the plunger has been slightly retracted into the barrel; A perspective view of the inserted plunger, the barrel portion, and the guiding device, wherein the guiding member is coupled to the barrel using a connecting member; FIG. 20B shows a retracting plunger, a portion of the barrel, and a guide A perspective view of the device in which the abutting cam on the plunger abuts the guiding member; Figure 20C shows a broken plunger, a portion of the barrel and a guiding device. Figure 21 shows a perspective view of a third exemplary embodiment of a hypodermic syringe. Figure, the skin bet The ejector includes a head assembly detachably disposed at a distal end of the barrel, wherein a plunger is movably placed in the barrel; FIG. 22 shows a cross section of the barrel and the plunger of FIG. Figure 23 shows a perspective view of a hypodermic needle assembly in accordance with the present invention; Figure 24 shows a cross-sectional view of the hypodermic needle assembly of Figure 23 with an anchor seat removably placed in the hub and - a hypodermic needle connection Figure 25 shows a cross-sectional view of the wrong seat of Figure 24 having a large cylindrical distal end portion and a plurality of flexible legs terminating in the outwardly oriented snap elements and including a brake member; & Figure 26 shows a view that is not comparable to Figure 24, with the enlarged surrounding portion showing the sealing lip not defined by the hub and the anchor; Figure 27A shows a partial cross-sectional view of the shooting pirate of Figure 21, wherein the master 16 201100135 The distal end of the plug is inside a portion of the barrel;

Figure 27B shows the distal position with Figure 27A; ^ see ® 'where the plunger is at a greater angle, 27C shows a circle equivalent to Figure 2A and Figure 27β and the distal end of the plunger is at a fully distal position inside the barrel Wherein the flexible leg of the anchor seat is inside the plunger; and is shown in a view corresponding to FIG. 27A to FIG. 27c, which has the outwardly facing snap element of the plunger;

The view of G column is not the same as that shown in Fig. 27D, which has the retreat of the bandit king and the needle is pulled into the inside of the barrel; Figure 28 shows the vertebral state of Fig. 22 A perspective view of the same body, in which one of the barrels is cut. P is for revealing the distal end of the plunger; FIG. 29 is a perspective view of the plunger; Plunger I: an enlarged partial perspective view of one of the distal ends of the plunger, including the buckle edge of the plug; A perspective view of another enlarged portion of the distal end of the plug; and a cross-sectional view of the syringe of the first embodiment of the present invention, wherein the plunger is in a different processing step within the body and body. [Embodiment] The present invention will be described with reference to the accompanying drawings in which: FIG. 17 201100135 Figure 1 is an exploded perspective view of a hypodermic syringe and showing a plunger 丨 (also known as a piston), a barrel 2 (also known as a reservoir or housing), and a occlusion device 3 (also known as a needle holder) Or pin seat) and needle device 4. The barrel 2 has a generally cylindrical inner wall and includes a flange 21 at the second end 52 for holding the hypodermic syringe and a first end 51 opposite the barrel. The occlusion device 3 is adapted to block the first body of the barrel 2, wherein the occlusion device 3 is provided with a through-opening 31 that is connected to the adapter for coupling to The nozzle W of the needle device 4 is closed, and the second side of the nozzle 32 is provided with a second __ A. The plunger I can be movably placed in the barrel 2 when the barrel 2 is The fluid is pushed out of the barrel, and the A. ^, the plunger 1 is at least partially protruded from the barrel at the second end 52 of the barrel. The first -... is entered in the barrel 2. The V-pair of the plunger: the two ends 62 of the plug 1 include a pressing portion u. The first coupling member 协作 of the first coupling member k2 of the plunger cake 61 cooperates with the second coupling member k2 for adaptation of the coupling member 3 In the barrel 2, the assembly of the plunger 1 and the occlusion device 3 is moved toward the mountain of the barrel 2. The occlusion device 3 is in the condition 2 in the case of the barrel 2 such that the occlusion device 3 (as the case includes - the needle J moves, the barrel), wherein the occlusion device 3 can be returned Retracted to the first end 51 sealingly adjacent to the barrel 2 at least in the barrel 2 18 201100135 The occlusion device 3 is provided with a nozzle 32, wherein the "adapted for - and - standard needle or needle device 4 lightly connected, external quasi-needle or needle device 4 is generally suitable or intended for non-injector syringes. π-suited subcutaneous occlusion device 3 is mainly intended to be used at the first end 51 of the barrel 2 Body 2. The occlusion device 3, which is then movable in the barrel 2, comprises the following: The occlusion device 3 is adapted for consuming to the plunger i for retraction into the barrel as an assembly. The clogging device 3 is adapted for not being pushed out of the barrel 2 during replacement of the fluid. To achieve this, the occlusion device 3 comprises a first blocking member b and the inner wall of the barrel 2 is at its - End 51 contains the first blocking element in cooperation with the first blocking member (blocking element b2 (H® 1Α' Figure 1Β and Figure 1 C)) 'where the first - blocking member s, etc. - the blocking member b2 is adapted to block the movement of the occlusion device 3 in the direction of the first end 51 of the barrel (to the outside). Adapted for rotationally fixed placement in the cartridge 2 at the first end of the barrel 2. In this case the same blocking member and b2 ' can be used, wherein the blocking members b 1 and b2 are adapted for use Blocking the rotation of the occlusion device 3 about its centerline. The occlusion device 3 is adapted for not being pushed to the cartridge during insertion of the needle into a target (not shown) for this purpose. The occlusion device 3 includes a first locking member v1, and the inner wall of the barrel 2 includes a second lock 19 201100135 in cooperation with the first locking members v1 near the eighth 缒 51 (specifically, Locking groove v2 (see FIG. 2, FIG. 3, FIG. 5)) wherein the first locking members v1 and the second locking members are adapted for the occlusion device 3 toward the second end of the barrel Locking of the motion of 52 (to the inside). On the one hand, the occlusion device 3 is adapted for insertion in the needle During the target period, it does not move to the inside of the barrel 2. To achieve this, the locking member v1 forms a snap-fit connection with the locking member v2, thereby causing a lock. On the other hand, the occlusion device 3 must be retractable into the barrel 2 after the needle has been inserted into a target. It is required that the lock member V1 and the locking members V2 need to be unlocked. The unlocking occurs just before or after the plunger 1 is consuming the damming device 3. To achieve this, the first coupling member k1 for consuming the plunger i to the occluding device 3 and The second coupling member U is also adapted to unlock the first locking member and the second locking portion "2". 2 to 5 show the structure of the second surface joint member 匕 which has been disposed on the structure of the first locking member W of the damming device 3 The plunger at the end!, but wherein the plunger 1 has not yet been in contact with the lock 33 that is resiliently connected to the occlusion device 3. The lock 33 is provided with a engaging member k2 which is provided with a protruding barb 34 in this embodiment. The first end 61 of the plunger 1 has a (four) connecting member ki, and the consumable members 20 201100135 k1 are equipped with a protruding hard barb of the right field 34 cooperated with the wheel on the elastic lock 33 in this embodiment. Hook Figure 3 shows that the plunger 2 has made the occlusion device 3 shoulder hard barb 12

Mu lightly reversed fishing 34 · Bend to the inside, Lib " Pre-biased in this direction to β 八中远锁33 Bend to S ° (4) 'The locks (4) 35 will have the hiccups 4 special locking parts vi盥The degree of unlocking between the two ends of the second end 52 of the seal V2 is now the possibility that the occluding device 3 moves toward the barrel 2 < Figure 4 shows the plunger 1$; 隹__ first end 61 of the step-by-step penetration, # in the plunger ^ the hard barb 12 has penetrated far into the lock 33 to pay " The slamming device 34 has been slightly bounced back again. The squid 3 4 is spliced to the horse stalk π the hard barb 12 of the temple, and thus the plunger is connected to the occlusion device 3 For slidable in the direction of the second end 52 of the barrel 2. Figure 5 is not due to this connection, the plunger 1 and the occlusion device 3 are in the direction of the 4 barrel 2 The direction of the two ends 5 2 is slightly retracted. Figures 2 to 5 also show a circumferential groove % for placing a seal ring (not shown) at the first end 5丨 of the barrel 2. The seal is broken to ensure that fluid cannot leak past the occlusion device. Figures 2 to 5 also show the shape of the first end 61 of the plunger 1. Not only are the rigid barbs 12 attached to the end, but also filled The first end 91 of the body 13 is also attached to the end. In a top view of the generally flat filler body 13, it includes an end stem 14 from its first end 91, a first contour 15, which is One round gallery 21 201100135 15 increases in diameter towards its final tip 16, in which the final tip 16 abuts the edge of the through opening 31. The plunger 1 having the filling body 13 penetrates the occluding device 3 Medium (especially penetrates into the recess extending in the full width of the occlusion device 3 and in the adjacent access hole 31 by the flexible foot of the lock), effectively limiting the remaining volume. The step is toward the 92nd' of the first end% of the filling body 13 and the second end 92 comprises a second contour 17. The contour 17 is adapted for use in the case of maximum penetration of the plunger 1 The filling body 13 abuts the wide opening 37 of the through opening "with a minimum distance from the contour 37 of the through opening 31 for limiting the remaining volume. Further, toward the second end 92 of the filling body 13, there is a cone which replaces the final remaining volume at the position of the nozzle 中 in the through opening 31 of the occluding device. Figure 1 shows a perspective view of the filler body 13. Due to the shape of the plugging device 3, the filling body 13 is designed to be flat, in the opening of the blocking device: the through opening of the blocking device 3 opposite the end of the nozzle 32^ It is generally flat rectangular. The height of the through opening 31 in the occluding device 3 substantially corresponds to the distance between the final point 16 at a distance on either side of the center line of the barrel 2. The width of the through opening 31 of the person 1 to seal the m towel substantially corresponds to the width of the riding filler member 13. Figure 2 shows a situation in which the plunger 1 is indeed close to being transferred to the (four) blocking device 3, but wherein the plug 1 can still be individually retracted into the barrel 22 201100135 body 2. This situation may correspond to the situation in which the fluid can be drawn into the barrel 2 by sliding the plunger i toward the second end of the barrel 2 and the needle device 4 into the fluid. # Ο 〇 In order to draw fluid, the plunger i should extend into the barrel to such an extent that the plunger 1 has not just been lightened to the occluding device 3. In order to prevent the plunger 1 from being accidentally pushed in the direction of the first end 51 of the barrel in the < this action, the plunger 1 will be lightly connected to the occlusion device 3, the plunger i is provided with a brake mechanism 7 near the second end 62 of the plunger 1. Figure 6 shows the brake mechanism 7 connected to the plunger}, which is in the first case. In this case, the distance that the plunger i can move in the barrel 2 in the direction of the first end 51 of the barrel 2 is limited because the brake: the end 71 of the structure 7 abuts against the flange 21 (see Figure 7). This movement is therefore limited to the extent that the plunger i cannot be self-fed to the occlusion device 3 (see Figure 2). With this situation as a starting point, fluid can be drawn.乂 - Figure 8 shows the brake mechanism 7 placed on the plunger, which is in the first case. In this case 'the plunger! The distance that can be moved in the barrel 2 in the direction of the first end 51 of the body 2 is limited because the end 72 of the brake mechanism 7 abuts against the flange 21 (see Fig. 9). When the plunger 丄 actually abuts the flange, the maximum possible volume has been replaced and the plunger! : Attach itself to the occlusion device 3 (see item 4). In this case, the assembly of the plunger i and the occluding device 3 can be retracted into the body (see Fig. 5). Figure 10A shows a guiding device 8 having its first end flexibly connected to the convex, rim 2, the back end of the guiding skirt 8 at the end of the 23rd 201100135 A loose end 81 is formed that forms a guide. In the embodiment, the shape may comprise a forked structure 82. Figure 10B shows the adjustment of the fork structure 82 for guiding the slats of the ribs U3 to H6 (see Figure n) of the plunger i for the guiding of the plunger 1 The loose end 81 of the guiding device 8 is brought to a predetermined position where the desired rib 114 of the plunger is placed in the forked groove 83. In order to achieve this, the guiding means 8 comprise a first connecting member, wherein a second connecting member cooperating therewith, for example, has been arranged at the flange 21 of the barrel 2. The first and second connecting members are adapted for interconnection between the loose end 81 and the flange 21. In an exemplary embodiment, the guiding means 8 includes a first connecting member back fishing 84 that is hooked to a card hole (7) (10) disposed in the flange 21 at a level of 85 ° - the barbs 84 have been Pushing through the card holes ^ creates a connection between them. In the embodiment, two guiding devices 8 are used to guide the plunger (both of the ribs U3 to 116. When the blocking device 3 is facing away from the end of the nozzle and the filling of the plunger) When the portion of the member 13 that is connected to the occlusion device does not have a cylindrical design, the plunger 1 should be properly oriented so that the filling member 13 of the plunger i enters the occluding device 3 positively. Guide skirt 8: adapted to define the correct position of the plunger. The correct orientation between the plunger i and the closure 3 is also necessary to enable the components η and k2 to be correctly Coupling. In addition to the above-described guide bow device 8 (i.e., fully guide 24 201100135 leads the plunger 1 and in the continued it 2 | ^ w 正确 correctly orients the plunger guide 8 With the third function 1,), the movement of the direction of the end 52 (four) of the second piece 19 of the body 2 is delimited, "shift: by providing the second end 52 of the movement limiting body 2 to the ember 1 The second movement restricting member 19 finally abuts the abutment cam 19 (see Fig. 12) when the dam 1 is moved in the direction of the barrel-portion. Exemplary embodiment illustrated embodiment is set to limit the movement member. Billion

In the 2 position, the 'Shapi lower syringe has a substantially long shape. It is known that L having such a length-thickness ratio product is subjected to processing waste by, for example, quintile. Figure 13A, and further "81 13 shows the weakened object 112 of the plunger 1 for this purpose. The weakened material ii 2 makes it possible to reduce the long bag 3 of the hypodermic syringe. The plunger includes the needle device. The blocking device 3 of 4 and the assembly of the abutting cam 19 retracted in the "Heel body 2" abut the guiding skirts 8 when the weakening 112 is located just outside the barrel 2, near the flange 2ι. In this case, the protruding portion of the plunger can be easily disconnected from the hypodermic syringe using minimal hand power (see Figure 14). Figure 15 shows an example of a hypodermic syringe for administering a larger volume of fluid. The barrel 2 and the occlusion device 3. In this embodiment, the occlusion device 3 is identical to the occlusion device 3 as described so far. According to this situation, "Xuan barrel 2 to; at its first end 51 is also singed in the same manner (especially between the first end 38 and the second end 39 of the occlusion device 3 placed in the barrel 2). To increase the volume of the barrel 2, the barrel The inner diameter d2 of 2 (except for the position of the occlusion device 3 at the first end 51 of the barrel 2) 25 201100135 6 s ten is greater than the inner diameter d 1 of the s-tube body 2. Since the occluding device 3 is the same, the characteristic features of the invention are maintained herein, wherein it is possible to place a standard sized needle in a corresponding standardized size a nozzle 32 (which is part of the occlusion device 3) such that the needle can be stored in the barrel after administration of the fluid. It should be noted that the barrel 2 has a centerline of the widened portion of the diameter d2 It can also be displaced in parallel with respect to the centerline of the barrel 2 having a diameter dl close to the first end S1. Figure 16 shows a barrel 2 and an embodiment of an embodiment of a hypodermic syringe that is also used to deliver a larger volume of fluid. The blocking device 3. In this embodiment the blocking device 3 is different from the blocking device 3 as described so far. The blocking device is increased from the first end 38 in the direction of the second end 39. Medium, t悝^ plus: problem 'Therefore the conical shape of the occlusion device is achieved. Iron, a female-shaped occlusion device can be used as long as it is placed in the barrel so that it can be released (this is the pair of squatting/retracting the shovel 4 in the barrel 2 to achieve this) OBJECTIVE: The increase in diameter from the end-to-end 3 to the second end 39 of the occlusion device is necessary for the Hengzhi 38 test. The local micro-small process is not weaker and more sharply increased. In this case, the barrel 2 is designed, at least at its first end 5, in the seal placed in the body 2 (especially between the first ends 3 s of the occlusion device 3). The same rim. With the second end 39 having this different sealing, the figure t is shown, but the barrel 2 of the syringe, although not in the subcutaneous syringe, can also be counted as Figure 15 ~ Widening of the same body 2. 26 201100135 Different sealing devices f 1 sign, wherein it is possible to have the same characteristically sized mouth 32 of the present invention ( ; | : needle placed in the corresponding standard After casting, the diameter of the needle: at the position of '5' can be parallel to the center line having the body 2 of Figure 17 A further perspective view of a hypodermic syringe according to the present invention, an exploded perspective view, and showing a plunger 201 (also known as a piston), =: (also a reservoir or housing), and a occlusion device 2G3 (also The needle hub 202 has a substantially round (four) inner bore and includes a flange 221 at the second end 252 for holding the hypodermic syringe and the tube a first end 25 1 of the second end of the body. The occlusion device 203 is adapted to block the first end 251 ′ of the barrel 2 〇 2 , wherein the occlusion device 203 is provided with a through hole 231 , the through hole The 231 is outwardly coupled to the nozzle bore 232 adapted for coupling to a needle device 4. The 5H plugging device 203 includes a second bridge member k202 at a side opposite the nozzle 232. The plunger can be inserted 201 is movably disposed in the barrel 202 for pushing fluid out of the barrel when penetrating into the barrel 202, wherein the plunger 201 is at least partially at the second end 252 of the barrel Projecting beyond the barrel 202. The first end 261 of the plunger 201 is inserted into the barrel 202. The second side of the plunger is opposite the first end 261 262 includes a pressing portion 211. The first end 261 of the plunger includes a first coupling member 27 201100135 k201 that cooperates with the second coupling member k202, wherein the first engaging member k201 and the second coupling member k202 are adapted For the connection of the plunger 2G1 and the plugging device 203, so as to move the plunger 2〇1 and the plugging in the barrel 2〇2 toward the second end (5) of the tube|m The assembly of device 203. In contrast to the exemplary embodiment described above with reference to Figure 1, the first shank members k2 (H are generally circularly symmetrical. Thus, the piston plus is no longer required to be aligned with the occlusion device 2G3 and thus is retained in the barrel 202 without rotation. 18A and 18B show views equivalent to those of Figs. A and ib, but of course used for the yet-exemplary embodiment. The side view of Fig. 18A is substantially perpendicular to the side view of Fig. (10). 19A to 19D show the steps of the process of engaging the plunger 2〇1 to the occluding device 2〇3 and retracting the occluding device 2G3 into the barrel 2()2. Figure 19A shows the plunger 2〇丨 near the end of the maximum penetration, but wherein 坌 has not been in contact with the lock 234 that is resiliently coupled to the occlusion device 2G3. The lock 234 is provided with (four) members which are provided with protruding barbs in this embodiment. The first end 212 of the plunger 201 is provided with an annular consumable member which in this embodiment is provided with a circumferential rigid snap edge for cooperating with the resilient latch barb 234. ^ ^ / Unfortunately, the buckle rim 212 has caused the occlusion device to be fed with a pure barb 234 to the inside where the lock is pre-biased M to the maximum amount in this direction. At the same time, the lock 28 201100135 or the barb 235 ϋ# ρ _ οι* y the relevant lock portion is such that the lock between the (four) fixed member 235 and the groove is unlocked 1 to achieve the plugging 2〇3 toward The possibility that the barrel 2〇2 is moved in the direction of the first one. Figure 1 9 C shows the knowledge of the ο Λ, 201 of the mountain "the main plug 201 into the step penetration" where the snap snap edge 212 of the plunger has penetrated far into the lock to * The consuming baffle 234 of the occluding device 203 has bounced back slightly again. The coupling barbs 234 are indented by a scorpion 4 4 皇 。. The Π 4 4 4 4 buckle edge 212, thus, the column Ο The occlusion device 203 is coupled for slidable together in the direction of the second end of the barrel 2〇2, as shown in Fig. 19D. Further, placed in the barrel of the embodiment (close to the barrel) Portion of the closure X 203 having a radially outwardly extending circumferential lip or rib, wherein the lip is integrally formed with the occlusion device. The lip ensures the occlusion device and the barrel A sufficient seal between the inner walls of the body without the need for additional sealing elements necessary to achieve this. The movement of the plunger 201 in the direction of the second end 252 of the barrel 202 is delimited by the proximity of the second end 252. Abutment is provided to the barrel 202 by abutting the ridges 219 that are displaced in the direction of the plunger 201 toward the second end 252 of the barrel 202. The passage of the plunger 201 will eventually be blocked. In the exemplary embodiment, the abutting ridge 219 (see Fig. 20a) is disposed inside the barrel 202 proximate to its second end 252. Figure 20A shows the plunger 201 The weakener 'the weakener makes it possible to reduce the length of the hypodermic syringe. When the assembly comprising the plunger 20 1 including the occlusion device 203 of the needle device 204 is retracted into the barrel 202, the weakening The object abuts the abutting ridge 219. In this case, the projection 201 201100135 of the plunger 201 can be easily disconnected from the hypodermic syringe using a small hand power (see Fig. 20C). It should be noted that the plunger 20 1 The front side may be provided with a rubber seal μ] which may be placed on a circumferential groove disposed on the plunger for this purpose. Further, the plunger 201 has a buckle edge 212 on the front side - lateral An extended opening during which the core is transferred during the injection molding process, the core is passed through the opening for space behind the buckle edge 212 (the coupling barbs 243 engage into the space) Forming. Yet another exemplary embodiment shows 21 to 31. In this exemplary embodiment, the needle holder is on the outside of the nozzle 3 13 of the hypodermic syringe, generally designated by reference numeral 31. The syringe 310 includes a cylindrical barrel 312. There is a conical distal portion 313 for removably attaching to a needle assembly 314. The needle assembly 3U includes a needle 316' which is shown fixedly placed on the anchor 3 1 8 4 The anchor block 318 is adapted for coupling to a piston or plunger 32〇 movably disposed in the barrel 312, wherein the plunger 32 is at the plunger 32. The needle 316 is pulled into the barrel 312 as it retracts from the proximal end of the cartridge 312. The consuming mechanism includes an anchor 318 having two or more flexible legs 322 terminating in a proximal direction, the flexible legs 322 having an outwardly facing buckle member 324, such The snap element 324 can spray the snap edge 326 in the distal end 329 of the plunger 320 for forming a snap connection. The subcutaneous syringe 2 1 〇 allows the user to inject the injection solution in a safe and precise manner 30 201100135, which greatly reduces the risk of needle stick injuries. As shown in Figures 23 and 24, the needle assembly 314 includes a cover 33 that can be urged against the conical end 313 of the barrel for frictional definition and detachment with the conical end 313. connection. The anchor seat 318 is removably and coaxially mounted in the cover, and the needle 3 16 is fixedly coupled to the anchor seat 318 via a threaded connection. In a known manner, the distal end of the needle is provided with a sharp piercing portion (not shown) for punctureing the needle into the body. As shown in Figures 23 and 24, the cover 33 includes a longitudinal passage

G 332, the cover can be placed around the distal end portion of the anchor by the longitudinal passage 332 in a snug fit. The cover defines a sealing lip 338 that substantially prevents fluid leakage between the anchor 318 and the cover 330. As shown in Figure 25, the anchor 318 includes a generally cylindrical distal end portion 334 (having a longitudinal channel 336 through which the needle 316 is attached) and - by a plurality of flexible legs 322 Define the proximal part. The diameter of the passage 336 in the wrong seat 318 corresponds to the diameter of the needle screwed to the ventilator 336 to attach the needle substantially without clearance. The anchor channel can thus be designed for making it possible to place needles of different diameters therein. As shown in Figures 25 and 26, the anchor 318 extends outwardly from the generally cylindrical portion of the anchor for defining before the advancement extends in the proximal direction to the plurality of flexible legs. - radial edge 339. The plurality of selectable legs 322 terminate in the outwardly oriented snap elements and include outwardly oriented cams 340 that are generally midway through the flexible cut. y to Figure 27D, the outwardly oriented cams (4) have been in the 31 201100135 cover between the distal end of the (four) barrel and the generally cylindrical portion of the tin seat until the tin seat and the needle are retracted. During the forward movement of the plunger, the radial edge 339 of the anchor will be substantially blocked by a sealing lip 338 # w L & μ Λ _ basket and the plug U prevents the needle and the anchor assembly from moving out of the barrel body. 28 to 30B show that the column | 32 has a large cylindrical end ', eight has a through opening 328 on its side, and is used to guide a plurality of flexible legs of the anchor to the plunger An inwardly directed supply funnel 333 at the end. A generally circular opening 335 at the bottom of the narrower portion of the supply funnel 333 is for coupling to the snap edge 326 of the snap element of the anchor. The through opening 328 in the side of the cylindrical end 329 has the same function as the through opening in the side of the cylindrical end k201 of the plunger of the second exemplary embodiment as shown in Figs. . Due to the opening, it is possible to integrally manufacture the plunger and the circumferential buckle edge 326 during the injection molding process. As shown in Fig. 22, the generally cylindrical distal end 329 of the plunger 320 is placed in the distal end of the barrel 313 when the plunger 32 is placed in its distal position. A plunger seal 346 generally prevents leakage of the syringe. The drug to be/mainly shot or the like (not shown) is placed in the barrel 3丨2 between the seal of the plunger and the distal end of the barrel. When in use, a suction needle (not shown) is placed on the syringe 310 by placing a conventional needle on the nozzle. The aspiration needle can be placed in the fluid to be injected and the fluid to be injected can be drawn into the barrel by retracting the plunger 320. It should be noted here that the first and second actual 32 201100135 = two aspiration needles are not necessary, and in order to completely fill the injected fluid, the same conventional needle can be used. Subsequently, the conventional needle is removed, and as shown in Figs. 23 and 24, the needle assembly 314 is placed on the nozzle of the 饩 饩 313 313 313 313. Continued movement of the administered drug/plunger ensures that the distal end 328 moves in the direction of the clock in Figure 27. When the plunger is pushed further, the flexible leg 34G of the seat is shown as being inwardly shown in the coffee machine so as to be in the plunger 326. When the plunger has been fully pushed into the barrel, as shown in Figure 27C, the same edge 326 is raised by the field fastener element 324 over the buckle side to make ":" The foot can be said to be slightly loose, and the square = 324 (four) 0 is the edge of the edge. The 27D is not displayed. In this way, the pedestal is actively and effectively coupled to the plunger 320. 340 prevents the wrong seat and the needle from moving into the barrel # (for example, injecting „ inserting a needle into a patient

I shows that when the tin wire is attached to the plunger, the cams 34 are moved into the I, as shown in Figure (4). In this way, the head is retracted into the barrel of the barrel-injector for the subcutaneous heart: An = in the subcutaneous and the essay is fully transported and thrown away. Each of the above-mentioned steps is also shown in Figure 31, including the above description to illustrate the invention without limiting the scope of the invention. According to the above solution, and many changes in God and Van Gogh will be obvious to the experts.

Claims (1)

201100135 VII. Patent application scope: 1. A hypodermic syringe comprising: a barrel defining a reservoir by an inner wall thereof, the barrel comprising a first region adjacent to a first end of the barrel And a second section of the second end of the barrel, a blocking device disposed in the first section of the barrel for blocking the first portion of the barrel The end 'where the occlusion device has a through opening' that communicates outwardly in a nozzle adapted for coupling with a needle event, a plunger slidably placed in the barrel In the second section, for pushing a fluid out of the barrel when penetrating into the barrel, wherein the plunger at least partially protrudes from the second end of the barrel One end of the barrel and one of the five sinusoidal plungers is inserted into the barrel and includes a first coupling member, wherein the occlusion device includes a sealing wall that abuts the inner wall of the first portion of the barrel a circumferential wall, wherein the occlusion device has a side along the damming device at a side facing away from the nozzle a central line and a recess extending over the full width of the occluding device, the recess being merged into the through opening in the direction of the nozzle, wherein the two diameters extending in the longitudinal direction of the recess and toward the circumferential wall The opposite flexible first locking member is placed in the recess, and the material locking member locks the occlusion device by spraying into the locking groove placed in the diameter of the inner wall to prevent Movement in the direction from the first end to the second end, wherein the locking elements are included at or near the end of the nozzle opposite to the end of the nozzle 34 201100135 to the first coupling member a second coupling member and wherein the occlusion device is provided with two diametrically opposed blocking members at a side facing away from the nozzle at a circumferential portion of the occlusion device outside the t-shaped pocket The blocking member extends generally parallel to the centerline of the occluding device and extends radially outwardly, and the blocking members are sealed by being sprayed into the occlusion recess # of the diameter _L disposed in the inner wall I preventing one in the direction from the second end to the first end Movement. 2. The hypodermic syringe according to claim 2, wherein the locking member and the locking groove form a snap fit in a direction toward the second end, and the blocking member and the same The blocking groove forms a snap fit in a direction toward the first end. 3. A hypodermic syringe according to claim 1 or 2, wherein the locking members and the locking recesses form a force engagement in the direction toward the first end. 4. The hypodermic syringe of claim 1, 2 or 3, wherein the first section of the barrel at a side opposite the first end is connected by a circumferential edge Pro, wherein the first section has an inner diameter that is smaller than a portion of the barrel that is beyond the edge, wherein the blocking groove is formed in the first section and communicates with the edge. A hypodermic syringe according to any one of the preceding claims, wherein the locking recesses and the blocking recesses are disposed substantially at the same circumference at the inner side of the barrel. A hypodermic syringe according to any one of the preceding claims, characterized in that the first plane passing through the centerline of the blocking grooves is placed in a substantially 35 201100135 perpendicular to the heart line passing through the locking grooves The second plane. 7: The hypodermic syringe of claim 6, wherein the intersection of the first planar spotted flute - a w-plane coincides with the center line of the hypodermic syringe. The hypodermic syringe of any of the claims is characterized in that the components of the fourth component and the second pure component are adapted to unlock the locking members and the locking grooves. The hypodermic syringe of any one of the patent ranges is characterized in that the inner wall of the first section of the sinus is substantially cylindrical or at a certain end from the first end of the barrel. (d) having a diameter of 10 in the direction of the two ends. The hypodermic syringe of any of the patent applications of the standard hypodermic needle device of the mouth is adapted to be used for one and the other. A needle for a hypodermic syringe suitable for or intended to be used, in particular, without a retraction device, or a subcutaneous injection as claimed in any of the patent claims, wherein the device is intended to contain 6 persons. - the diameter of the first end of the first end of the first end of the first end of the barrel is greater than the diameter of one of the standard needle devices. The hypodermic syringe of any one of the patent claims is characterized by The occlusion device is in the first The diameter of the tube is more than 8 mm. The type of the hypodermic syringe of any one of the claims, wherein the second section of the barrel of the body of the generally cylindrical inner wall _ The inner U is greater than or equal to the outer diameter of one of the occlusion devices. 36 201100135 14. The hypodermic syringe of any of the preceding claims, wherein the plunger is inserted in the deepest penetration. In the barrel: the shape of the end substantially conforms to the shape of the end of the occlusion device present in the barrel. The subcutaneous syringe of any of the above-mentioned patents, characterized in that the plunger is provided A subcutaneous syringe according to any one of the preceding claims, characterized in that the subcutaneous injection contains a meditation obstruction plug: π a moving brake mechanism in the direction of the end, "the brake position is adjacent to the plunger to be penetrated by the barrel such that the first end of the plunger does not itself consume the occlusion device And the brake mechanism is in the first place - φ Α 八The subcutaneous syringe of the 16th aspect of the invention is characterized in that the brake mechanism is configured to block the plunger and the plunger in the second position. The occlusion assembly prevents the assembly from penetrating in the direction of the first end of the barrel. The subcutaneous syringe of claim 16 or 17, wherein the brake mechanism is configured to be adjacent to the second end of the plunger. 19. A hypodermic syringe according to any one of the claims, wherein the barrel comprises a guiding device for the guide plug. The hypodermic syringe of claim 19, characterized in that: the first connection member is disposed, and the second body of the first connection member cooperates with the first connection member; - The connection connecting member is adapted for use in transporting the guiding device to the barrel - 37 201100135. A hypodermic syringe according to any one of the claims of the present invention, characterized in that the plunger comprises a rib extending in the longitudinal direction of the plunger, and the guide 3 & The end of the protruding portion of the rib. 22. The hypodermic syringe of any of the patent claims, characterized in that the plunger comprises a movement limiting member for abutting against the guiding device on the barrel, the movement of one of the movements . The subcutaneous syringe of any one of the patent applications, which breaks and splits the weakened object of the plunger, the end thereof. Putting the 24 in the barrel close to the plunger. As mentioned above, the direct injection is a subcutaneous syringe containing a - substantially round: item, which exceeds or is... the cylindrical body of the J-shaped inner wall The second section has a cross-section of the cross-section of the section, such as .../1. The utility model is characterized in that: the subcutaneous syringe of any of the patent scopes, the special hole and the filling body of the through hole partially fill the concave in the occlusion device, and the patent application is in the occlusion. The subcutaneous (four) of the W item has its own end - at the end of the second end near the end of the barrel, where the rib _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The plugging device is integrally formed. 38