TW200423985A - Safety syringe - Google Patents

Abstract

A safety syringe mainly uses a positioning component to be inserted between a syringe barrel and a mobile plunger, and uses means for screwing a cap sleeve on one end of the barrel to achieve an objective where the movement of the plunger during injection will not causes a slippage of the needle, thereby effectively avoiding the danger of protrusion or contraction of the needle during injection, as well as achieving the objective where the needle and the cap sleeve can be disposed together.

Description

V. Description of the Invention (1) [Technical Field of the Invention The present invention is a disposable type of convenience and safety [the prior art is currently shown, the peripheral system of its main (60)) is embedded in the barrel plunger (70 ( 6 0) (7 0) inside the tube (8 1) body (6 0) part (8 2) (7 2)), and the soft plug body (8 center of the end face through which can be A safe injection safety plunger for a plunger ((7 0), a safety injection syringe, an injection syringe produced with a hollow slender for a constriction (7 a stop ring (0) at the front end can be installed in the cylinder (60 0 safety requirements The front end can be provided with a body (6), and the embedded part is protruding from the front end (6 push rods (the center of the end is fitted with a slotted rod (8 3), a safety note 7 0 is installed) and a post is formed to form a sleeve Continue to 8) above 0), then (82 〇) is set to make the soft hole (8 injection cylinder embedded in 7 2) inverted cone-shaped a needle at the rear end, embedded to form a Chaco card 0) ( The stopper (the plug body (30) is used at the end of the cylinder (protruding into the syringe, mouth 0, the cylinder 0) is embedded 71) to reach the water) (73 can be used for the putter sleeve Embed the aforementioned as No. 1 8 2) 8 3) Shikou No. 1 (60 position, the 'make the tight side, (72); a central (80 (82 plunger, when, as in No. 1 16) The front end of the cylinder (60) is shown in the figure, and the plunger is inside, and the plunger is especially a kind of use more 1 to 13)), the cylinder plunger (70 plunger (70) Close to the cylinder body), while the plunger has a breaking groove) proud of the cylinder), the plug 7 0) the surface shown in Figure 3 of the post can be covered with a facing post (7 2) Of

The front end is connected to the needle (7 ,, (60)), and then push the body f β 2 and put the injection medicine into the cylinder (60), and the soft plug body (8) 3) The soft body (8) embedded in the front end of the (80) (8; j move the push rod (80), so that the push rod is sent out to complete the injection body (83) # squeeze the medicine solution from the needle (73), page 5 is like page 1 2 As shown in the figure, the perforation (830 2) of the injection body (83) is pushed out of the cylinder body (60), so that the perforation of the plunger (plug body (83) (83 plug portion (82) The insertion groove (80) can push the plunger (70) to the post holder, and then the push rod (80) can be moved backward). At this time, when the post (72) of the push rod (80) (70) is stuck, The plunger (70) and (60) will be inserted so that the injection is completed in the barrel (60) (for example, the first pusher (80) is punctured by the breaking groove (8 needles (7))) Others are only safe for the above-mentioned custom ', but there is flexibility in using (70) and (71) of the cylinder (60) to achieve watertightness 323-025TWP.ptd when the pusher (80) applies the medicine When the liquid is completely pushed, the push rod (80) has a soft plug at the front end, and the plunger (70) passes through the post (7). Soft 〇) and embedded in the putter (80) sleeve 20), and the card slot (82 (72)) to form the engagement, at this time use the pull back (as shown in the arrow of Figure 13 card The recess (8 2 0) has been connected with the plunger ^, so when the push rod (80) pulls back the needle (7 3) — the needle (7 3) pulled back to the end of the barrel is hidden in the figure 3) Finally, the user breaks 1) to achieve the safety purpose of avoiding the use. The design of the injection syringe, although its intention is shortcomings, is mainly because the plunger is only tightly connected with a single leak-proof ring. So designed often

200423985 \ V. Description of the invention (3) The plunger skin or blood vessels will shrink and enter the test solution, and will be subject to the hydraulic pressure (60). The injection force will not be completed until the injection is completed. (6 This design has not been able to solve the problem of the present invention, so there can be an (70) hours outside the barrel 'needle barrel (6 pushed by the pushing force to push away and cause the leak ring) (after 70% It is enough to overcome the dilemma in the column 0). People have a good solution to avoid the need to fully inject the needle at the other end of the needle (7 30) when the inner channel is moved too much. Plunger (stopper (7 case, technology bottle needle () together; or at or too fast (73's maximum set two (82 7 0) 0) and thus make the neck position 7 3) plunger (when injecting medicine, its ) Above the danger of 0) and the upper two needles (usually, this is a hard job after the meeting staff) 0) the barrel will decide this * will come out 2) 7 1) Farah back needle Cylinders have long been used to safe injection syringes, and continuous tests have been used to reduce the amount of injection. Faced with practical technical improvements, the barrel 0 was finally found in the barrel or protruded into the tube before being inserted into the liquid, and the medical plunger (7 protruded and connected; if you want to solve the design, the card post (7 stops leaking) The ring (73) has no technical difficulties in safe injection. [Summary of the Invention] Therefore, the main purpose of the present invention, the head is retracted during the injection to provide a safe injection syringe that can effectively avoid needles. Another object of the present invention which causes danger ^, the safety injection syringe 2 provided by Tian Formation is damaged-a kind of needle can

$ 6 页 200423985 V. Description of the invention (4) In order to reach the front end for a column, the plunger rod is embedded in the surface of the human body to cover the fixed positioning part in the hole of the cylinder, and the self-tapping of the special hole is determined. The other end is shaped for understanding. The push center can be connected with a hole in the middle of the cylinder, and it can be inserted into a pin located in the other cylinder. The silk. In this case, the device is closed so that the present invention has a plunger inserted in front of the above purpose, and a rod is inserted in the center of the plunger, and the plunger is opposite to the plunger. The plunger is opposed to the plunger, and the barrel is in the body of the barrel. 'Wherein, it is the cylinder of the invention, the end of the needle cylinder is sleeved to form a soft plug body, the periphery of the perforated body and the perforation of the perforated body are safely injected into the plunger and directed toward the syringe, including a barrel The inside of the body is convex, and a set of plug parts can be provided on the rear end of the cylinder, and the plugs can be inserted and engaged, and the plug parts can be placed outside. Position the hole and insert a slightly smaller than the positioning member, so that the plunger positioning member can be a cylinder with one end slightly larger than the plunger positioning and positioning member can be slightly larger than the inner diameter of the plunger positioning hole. The outer peripheral edge of the _ end of the plug is formed into a screw sleeve that can be screwed with the external thread, and one end of the Yanxuan cap sleeve forms an open screw hole. It is clear that the above-mentioned objects, effects, and characteristics can be described in more detail. • [Embodiment] First, please refer to the first hollow and slender cylinder and the third diagram. The present invention is mainly provided with 0) ’The front end of the cylinder (20) may be

200423985 V. Description of the invention (5) A plunger (30) is embedded, and the cylinder (20) is provided with a perforation (2 1) relative to the peripheral side of one end where the plunger (30) can be embedded. ) (As shown in Figure 2), and the plunger (30) is embedded in the position of the inner periphery of the barrel (20) relative to the perforation (2 1), a positioning hole corresponding to the size of the perforation is provided (3 1) 'and a positioning member (10) is provided on the outside of the perforation (2 1) of the cylinder (20), and the positioning member (1 0) may be one end slightly larger than the positioning hole (3 1). Locating pin, or a self-tapping screw slightly larger than the inner diameter of the positioning hole (3 1); making the plunger (3 0) different from the periphery of the positioning hole (3 1), the ring is provided with a leak-proof ring (32 ), So that the plunger (30) has a water-tight tightness when it is embedded in the end of the cylinder (20), and the plunger (30) is embedded in the cylinder p (the end surface λ 'of η is toward ㈣ (2 〇) The inner part protrudes to form an inverted card post (33), and the other end of the plunger (30) can be socketed: (34); the other end of the cylinder (20) can be For a center with a fold: Kawano putt " 〇) lost, the putter (4〇) Funnel = the end of the body (20), forming a set of plugs " 2), the set =

Section (42): the center is formed to be able to be snapped into the aforementioned column s (3: 33 = snap-in groove (420) (such as No. J, the pusher (40), the surface of the plug section (42) can be covered with a Eryang wear-perforation (4 4 0); in the end face of the card post (3 3), when the present invention is used in the main γ ^ # system also, etc. (as shown in Figures 3 to 5) can be The plunger (30) is embedded in the front end of the cylinder (0) and positioned

200423985 V. Description of the invention (6) The piece (10) passes through the positioning hole (3 丄) of the perforation (2 丄 plug (3 0) of the cylinder (20)), so that the positioning can be positioned in the positioning hole ( 3 i) so that the plunger (upper is located on the barrel (20) (as shown in Figure 3); U) when the plunger (30) is embedded in the barrel (20), the basin ( 3 3) is inserted into the barrel (20) (such as the other end of the plunger (30) in Figure 3 is connected to the needle (3 4), and = put into the barrel (20), and then The soft 3 (4 4) end of the pusher (40) is embedded in the barrel (20). When the user wants to body, the pusher (40) can be pushed to make the soft plug at the front end. γ Squeezed medicine is sent out by the needle (3 4), and since the plunger (30) is definitely positioned by the invention according to the invention, when the user inserts the needle (3 4) into the harder skin or blood vessel, the needle / The plunger (30) will not retract and retract into the cylinder (20). Before the injection of the medical solution, the medical staff pushed the test solution quickly, causing the plunger (30) to slide forward. So that the injection can be completed without = one (3 4) not loosening or sliding (such as (Shown) 'can effectively protect the safety of the injected person. Please also refer to Figures 4 and 5, and when the injection liquid is completely pushed out of the cylinder (20) to complete the injection ^) front soft plug body The perforation (440) of (44) is pushed by the support rod (33), so that the plunger (30 $ (33)) passes through the perforation (44) of the soft plug body (4). (4 0) The slot (= at column 0) of the tamping part (4 2) fixes the column, and the injection of the medicinal solution) pushes (at the time of 1 shot) or does not go beyond the figure) and inserts 4 0 3 0 into In and

323.Q25TWP.ptd $ 9 pages 200423985 in V. Description of the invention (7) Engage the slot (42 °, knee & ^: wide 0; at this time, if the user wants; on) :: f; on 3) Forming the stator on the cylinder (20)? U user must first, the hole ...) and the cylinder (2〇): U ^ (3〇) (as shown in Figure 5), and then withdraw (3 0) from the perforation (2 1). 3 dry 4)) Pull back to make the plunger inside, so as to avoid the use of (20). w Needle Shuo (3 4) stab the eyes and then cooperate with reference to the three-dimensional appearance diagrams of the 6th to 1st embodiments, showing 'this is another-preferably the same as the above embodiment, where ^ not intended' its general The upper member positioning member (1 0) is used for accurate positioning ^ In this embodiment, in addition to the above (20) inserting the plunger (3 :: 3 0), the two patterns (00) (as shown in FIG. 6) ) Then the outer peripheral edge forms an external thread f body (200) to form a threaded screw sleeve ^ ^ There is a closed end that can form a closed end with the external screw 0 2 series, the other end] 0), the cap sleeve (50 0 Figure 6 and Figure 9); forming an open screw hole (51), so that when the user pulls the plunger (such as pulled into the cylinder 30) and the needle cannula 20) external thread (200 〈 (5 1) The screw body (2 0) forms a cover (such as the q / 'with this cap (5, the same putter (4 0) pushes oblique-hundred, as shown in the figure), using this will buttercup) Push the needle Shuo (3 4) to hit: the seal of the sleeve 'qi at this time' "mouth 〇) can be ^ :: 々 7, 8 ::),;, the tube 323-〇25TWP.ptd 10 pages 200423985

Closed end, so that the needle (3 4 1 m destroys the deformed needle (3 4) 1 so w changes the material, and then returns the curved curve 1 η graph _, i back to the cylinder (2 0) (as the first The push # (4〇) is broken by the break slot (^); by this means, the safety of the present invention i =

effect. Ran Zha's ability to injure others or not to be used again is shown in the above. The effectiveness of the bit piece (10) and cap (50) of the present invention to prevent the needle from retracting during the injection or the convex head from forming damage is indeed However, the above-mentioned embodiments illustrate that all safety injection syringes that should fall into the patent application scope of the present invention according to the present invention use two major creative methods to achieve the danger of effective patenting and The needle after injection is a very good invention, and the content of the method according to the law is only a change extended by the better technical means of the present invention.

[Illustration of symbols] 20 cylinder 200 external thread 21 perforation 30 plunger 31 positioning hole 32 stop ring 33 card post 34 needle 40 push rod 41 break slot 42 sleeve part 420 snap groove 44 soft plug body 440 perforation 50 Screw sleeve 51 screw hole 10 positioning piece

200423985 Schematic description of the first picture system, the second picture system, the third picture system, the fourth picture system, the fifth picture system, the sixth picture system, the seventh picture system, the eighth picture system, the ninth picture system, the first 10 picture, the first picture, the first picture 1 2 FIG. 1 3 FIG. The present invention The present invention The present invention The present invention The present invention The present invention The present invention The present invention The present system The custom system The custom system It is better, better, better, better, better, better, better, better One more than the other, the other, the other, the other, the other, the safer, the safer, the safer, the safer, the safer, the safer, the safer, the better, the better, the better, the better Symptoms of Syringe Shooting Syringes Symptoms Exploded Views Dissected Views Planes Exploded Views, Schematic Views of Actions when Used; Schematic Views of Actions when Used; Schematic Views of Examples of Stereo Appearances; Here ^ another schematic diagram of the action is an example of the action of destroying the needle ^ ...; the longitudinal schematic diagram of the action of the example M that destroys the pusher 々 m ^ buckle; the action when in use is not intended by Shi Shi; the other is in use Action indicator Fig.

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Claims (1)

200423985 VI. The scope of the patent application is located in the main syringe barrel of the female Zhiwangtang. It is equipped with a front end for a plunger to insert a needle, and the other end of the barrel can be used for a putter:;, ； = ， 邛 塞 邛, the center of the plug part can be connected with the plunger = 5, and the outer surface of the plug part is covered with a soft plug body with a central wear, where: Tianya hole in the nj tube The body is located at the peripheral edge of the plunger end, and a perforation is provided, and the funnel = pieces can be inserted into the perforation of the barrel and the positioning hole of the plunger, and the cattle = are positioned in the barrel.将 The plunger 2 · The safety injection syringe described in item 1 of the scope of the patent application, the positioning member can be a position slightly larger than the position of the plunger. The safety insert can be a self-threading wire whose end is slightly larger than the inner diameter of the positioning hole of the plunger. Among them, the improved safety device described in item 丄 of the scope of patent application, wherein the plunger is embedded in the plunger. The outer peripheral edge of one end is to form a "shooting needle": another screw sleeve is formed to be screwable with the external thread, and the cap snail is to form a closed end, and the other end is to form an open screw hole. Set it —