TW201700114A - Safety syringe device capable of more easily and safely to use safety syringe and completely preventing reuse - Google Patents

Abstract

This invention provides a safety syringe device, which comprises a barrel and the front end of the barrel is configured with a barrel connector; a needle device including a needle base, in which the needle base is fitted onto the barrel connector and the front end of the needle base is configured with a needle; an elastic action host portion, which comprises a fixed U-shaped portion, a movable U-shaped portion, a soft hinge, a V-shaped elastomer, and a fitting member, wherein two U-shaped portions are connected by the soft hinge; the V-shaped elastomer connected with both ends of the opening may provide sufficient elastic force for bending operation of the two U-shaped portions; the fixed U-shaped portion is connected with the fitting member as a whole; and, the elastic action host portion is fitted onto the needle base with by the fitting member; and, a protective sleeve having a fitting space, and the front end of the protective sleeve is configured with an insertion portion, wherein the insertion portion is assembled with a receiving portion which is upwardly extended from the end of the moveable U-shaped portion to connect the movable U-shaped portion with the protective sleeve.

Description

Safety needle device

The invention relates to a safety injection needle device, in particular to a safety injection needle device which is assembled on an injection needle device by using a unique component, and the combination thereof is relatively stable and is not easy to fall off, thereby achieving practicality and safety in use.

In modern medicine, it is a normal state to use injection and infusion methods for treatment. After use, syringe needles are usually sheathed at appropriate time to prevent accidental punctures and infections to patients or medical staff, and to facilitate subsequent syringes. Dispose of the work and prevent it from being recycled. The prior art is directed to a needle sheath structure design of a syringe, which mainly comprises a syringe barrel. The syringe barrel is provided with a needle holder. The needle holder protrudes from a needle for injection, and the needle holder is covered with a needle cover for protecting the needle. a safety sheath is attached to one side of the needle holder, and a lower part of the safety sheath is provided with a connecting mechanism (or a turning mechanism) for bending, and the safety sheath is placed against the needle before the syringe is used. The state of the side of the head cover; in use, the safety sheath is first turned down by its connecting mechanism (or the turning mechanism), and then the needle cover is removed to expose the needle for the injection operation, when the injection is completed, The safety sheath is bent toward the needle direction, and an elastic mechanism is connected under the connection mechanism (or the turnover mechanism), and the elastic mechanism facilitates automatic fitting of the safety sheath to the needle, and the needle is automatically inserted into the needle The cover is protected from exposure to achieve the purpose of safety protection for the needle after use.

The sheath structure of the prior art injection needle can achieve the prevention of the needle after use. The purpose of protection, but there are still some defects, for example: the safety sheath is integrally connected to the side of the needle holder, which makes the needle seat and the safety sheath need to be equipped with complex molds in one piece, which will increase the complexity of the production. The cost is obviously not economical. If the safety sheath is placed on the needle holder in a bonding manner, there is also a lack of easy to fall off, so that the prior art is not ideal for the integration (connection) of the safety sheath and the needle holder. design. Furthermore, the elastic mechanism is connected to the two parts of the connecting mechanism (or the inverting mechanism) and also has a supporting function. However, the connecting mechanism of the elastic mechanism is insufficient, so that the connecting mechanism is required to be turned up after the use of the lowering operation before use. The folding and bending is easy to break, or the elastic mechanism is connected to the two parts of the connecting mechanism and is also easy to be broken, which will cause the safety sheath to be unable to be used normally; and when used, the safety sheathed syringe is used for subsequent collection and handling. During the discarding operation, the two sections of the connecting mechanism, or the joints of the elastic mechanism and the connecting mechanism, may also be broken by an external force and cause the safety sheath to fall off, which will be treated with needle waste. Potential dangers are also necessary to improve. Therefore, how to improve the lack of safety jacket structure of existing syringes, etc., should be an important direction that the industry should strive to solve and overcome.

In view of the disadvantages of the use of the safety sheath structure of the existing syringes and the like The unsatisfactory fact of structural design, that is, the development of its solution, the inventor hopes to develop a safer, safer and economical manufacturing syringe needle safety cover structure to promote the development of the industry, chanting The invention has been conceived for a long time.

The main object of the present invention is to provide a safety injection needle device, wherein the safety protective cover is an injection needle component made by combining the ingenious component with the existing skillful technology to facilitate manufacture and reduce cost, and the combination thereof is quite stable. Shedding, which is excellent for use Security.

A second object of the present invention is to provide a safe injection needle device that can be prevented The exposed needles exposed by the needles pose a risk of contamination by the needles, and the used needles are indeed locked inside the needle set and cannot be removed, so that they can be completely re-used.

Another object of the present invention is to provide a safety needle device, which is behind the protective cover The stroke of the segment presents the effect of automatically locking the needle, and the needle is instantly pressed through the bead, which is humanized and makes the medical staff easier and safer to operate.

In order to achieve the above objects and effects, the technical content of the present invention is The safety needle device comprises: a needle device comprising a syringe with a syringe connector at the front end thereof; a needle device comprising a needle holder sleeved to the syringe connector, the needle holder having a needle at the front end thereof, The front end of the needle holder is provided with a position block; an elastic actuation body portion includes a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a V-shaped elastic body and a sleeve, the film soft hinge portion a film soft hinge portion disposed between the end portions of the two U-shaped portions and having a relatively loose connection length, the two U-shaped portions being integrally connected by a loose connection length; the fixed U-shaped portion and the movable U-shaped portion The non-resistive relative bending and reversing operation can be performed by the soft-length hinge portion of the slack length film, and a through port is disposed between the two U-shaped portions, and a V-shaped elastic body is disposed at both ends of the through-port, the V-shaped elastic body a long-side tip soft hinge portion is connected to a predetermined length of the fixed U-shaped portion, and a tip soft-link portion of the V-shaped elastic short side is connected to a preset length of the movable U-shaped portion. Providing sufficient foot when the two U-shaped portions are bent a resilient force, and the end of the movable U-shaped portion is provided with a receiving portion, the fixed U-shaped portion is integrally coupled to the sleeve, and the elastic actuating body portion is sleeved on the needle holder by the sleeve; a protective sleeve, The protective cover has a space for the front end of the protective sleeve, and a plug portion is connected to the end of the movable U-shaped portion. The insertion portion connects the movable U-shaped portion to the protective cover.

The positioning block comprises a set of four sets arranged at the front end of the outer periphery of the needle holder. a guide block of the corner, a positioning block, a retaining ring disposed behind the positioning block, and a neutral portion disposed between the guiding block and the positioning block; a four-position positioning concave portion disposed in a 90-degree relationship between the inner circumference of the sleeve The positioning recess includes a front groove, a rear groove and a positioning convex clip disposed between the front and rear grooves.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body. The long side is joined to the fixed U-shaped portion by a predetermined soft hinge portion thereof, the short side being joined to the movable U-shaped portion by a predetermined length of the flexible U-shaped portion.

The long side of the V-shaped elastomer is at least 30% larger than the short side.

The preferred length of the long side to the short side of the V-shaped elastomer is 2 to 1.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected with a tip soft hinge portion to a predetermined length of the fixed U-shaped portion, the short side being at the tip end thereof The soft hinge portion is coupled to the predetermined length of the movable U-shaped portion.

The long side of the V-shaped elastomer is at least 30% larger than the short side.

The preferred length of the long side to the short side of the V-shaped elastomer is 2 to 1.

The V-shaped elastomer has at least one elastic rib thereon.

The end of the movable U-shaped portion extends upwardly and has a vertically protruding receiving portion, and the receiving portion has a receiving portion, and the plug portion of the protective cover is inserted into the connecting portion receptacle, so that The plug is fastened to the connector jack.

The elastic actuating body portion and the sleeve are tightly sleeved on the inner peripheral wall of the sleeve by four sets of positioning clips disposed on the outer circumference of the needle holder, and the positioning recesses and the positioning recesses are once stuck. After the combination, it can no longer be released and exited.

Another technical content implemented by the present invention in order to achieve the above objects and effects The safety needle device comprises: a needle device, comprising a syringe, a syringe joint is arranged at the front end thereof; a needle device comprises a needle seat sleeved to the syringe joint, and a needle head is arranged at the front end of the needle holder a small convex portion and a convex ring are disposed on the outer circumference of the needle holder, so that a gap portion is formed between the positioning small convex portion and the convex ring; an elastic actuating main body portion includes a fixed U-shaped portion and an active U a flexible portion of a film, a V-shaped elastomer, and a kit, the soft hinge portion of the film being disposed between the end portions of the U-shaped portions and having a relatively loose connection length of the film soft hinge The two U-shaped portions are integrally connected by a loose connection length; the fixed U-shaped portion and the movable U-shaped portion can perform a non-resisting relative bending and reversing operation by the slack length film soft hinge portion, the two U-shaped portions A V-shaped elastic body is disposed between the ends of the V-shaped elastic body, and the film soft hinge portion of the long side of the V-shaped elastic body is connected to the preset length of the fixed U-shaped portion, and the V a thin flexible section of the short side of the elastomer is connected to the active U The preset length of the shape portion provides sufficient sufficient elastic force when the two U-shaped portions are bent, and the end of the movable U-shaped portion is provided with a receiving portion, and the fixed U-shaped portion is integrally coupled to the sleeve And the elastic actuation main body is sleeved on the needle holder by the sleeve; the protective sleeve has a set space, and the front end of the protective sleeve is provided with a plug portion, and the plug portion is assembled The insertion portion extending upward from the end of the movable U-shaped portion connects the movable U-shaped portion to the protective sleeve.

The inner peripheral wall of the kit is a smooth inner peripheral surface, and the elastic actuating body portion is The sleeve is tightly sleeved on the outer circumference of the needle holder, and when the sleeve and the needle holder are engaged with each other, the gap between the small convex portion and the convex ring on the outer circumference of the needle holder is matched with the inner circumferential surface of the sleeve and the kit After the sides of the width are locked to each other, the kit cannot be released even if it is positioned.

The V-shaped elastic body is composed of a long side and a short side, and an elastic plate body is formed. The film is connected to the fixed U-shaped portion by a predetermined length of the film soft hinge portion, and the short side is joined to the movable U-shaped portion by a predetermined length of the flexible U-shaped portion.

The long side of the V-shaped elastomer is at least 30% larger than the short side.

The preferred length of the long side to the short side of the V-shaped elastomer is 2 to 1.

In order to achieve the above object and effect, the present invention further provides that the safety needle device comprises: a needle device comprising a syringe having a syringe end at the front end thereof; and a needle device including a needle a sleeve is sleeved on the syringe joint, a needle is arranged at the front end of the needle holder, and a positioning device is arranged at an outer peripheral end of the needle holder; an elastically actuating body portion includes a fixed U-shaped portion, a movable U-shaped portion, and a film soft a hinge portion, a V-shaped elastic body and a kit, the film soft hinge portion being disposed between the end portions of the U-shaped portions and having a relatively loose connection length of the film soft hinge portion, so that the two U The shaped portion is integrally connected by the length of the loose connection; the fixed U-shaped portion and the movable U-shaped portion can perform a relative bending and reversing operation without resistance by the slack length film soft hinge portion, and a through port is formed between the two U-shaped portions a V-shaped elastic body is disposed at both ends of the opening, and the film soft hinge portion of the long side of the V-shaped elastic body is connected to the preset length of the fixed U-shaped portion, and the short side of the V-shaped elastic body The film soft hinge portion is connected to the The preset length of the movable U-shaped portion provides sufficient sufficient elastic force when the two U-shaped portions are bent, and the end of the movable U-shaped portion is provided with a receiving portion, and the fixed U-shaped portion is integrally coupled to The kit is configured to be sleeved on the needle holder by the sleeve; the protective sleeve has a space for the front end of the sleeve to be provided with a plug portion A receiving portion extending upward at an end of the movable U-shaped portion connects the movable U-shaped portion to the protective cover.

The positioning device on the outer circumference of the needle holder includes a single small convex portion disposed at an intermediate portion of the outer periphery of the needle holder, and the small convex portion is rearward of the outer portion of the middle portion of the needle holder Two pairs of latching lugs are respectively disposed at corresponding positions of 180 degrees, and a peripheral groove is provided on the inner peripheral wall of the kit, and a groove is formed on the smooth inner peripheral surface corresponding to the needle seat, and a blocking protrusion is arranged in the groove, so that the small convex portion is restrained by the locking convex portion and is stopped by the sleeve and the needle holder, and at the same time, the two pairs of the locking protrusions of the needle holder are A pair of convex portions are disposed at a position corresponding to the outer circumference of one side of the sleeve at a position corresponding to 180 degrees. When the elastic body portion is tightly sleeved on the outer peripheral surface of the needle holder, the sleeve and the needle holder are respectively engaged with each other. The small convex portion on the outer circumference of the needle holder is engaged with the blocking convex portion of the inner circumferential groove of the sleeve, and the neutral portion between the two pairs of the locking projections and the convex portion on one side of the sleeve Interlocking with each other can prevent the kit from being released even if it is positioned at the needle holder.

The V-shaped elastic body is composed of a long side and a short side, and an elastic plate body is formed. The film is connected to the fixed U-shaped portion by a predetermined length of the film soft hinge portion, and the short side is joined to the movable U-shaped portion by a predetermined length of the flexible U-shaped portion.

The long side of the V-shaped elastomer is at least 30% larger than the short side.

The preferred length of the long side to the short side of the V-shaped elastomer is 2 to 1.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected with a film soft hinge portion to a predetermined length of the fixed U-shaped portion, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion.

The specific embodiments of the present invention will be further described by the following embodiments and the accompanying drawings.

10‧‧‧Injection needle device

11‧‧‧Syringe

12‧‧‧Syringe connector

121‧‧‧through hole

13‧‧‧Piston putter

20‧‧‧needle device

21‧‧‧ needle seat

211‧‧‧ Guide block

212‧‧‧ Positioning block

213‧‧ ‧ retaining ring

214‧‧‧Neutral Department

22‧‧‧Needle support sleeve

23‧‧‧ needle

20A‧‧ needle device

200A‧‧‧Neutral Department

21A‧‧‧ needle seat

211A‧‧‧Small convex

212A‧‧‧ convex ring

22A‧‧‧needle support sleeve

20B‧‧・Needle device

200B‧‧‧Neutral Department

21B‧‧‧ needle seat

211B‧‧‧Small convex

212B‧‧‧Bucking lugs

22B‧‧‧Needle support sleeve

30‧‧‧Electrical Actuation Main Body

31‧‧‧Fixed U-shaped

32‧‧‧ Activities U-shaped

33‧‧‧film soft hinge part

330‧‧‧ mouth

34‧‧‧Received part

341‧‧‧Connector jack

35‧‧‧V-shaped elastomer

351‧‧‧ long side

3511‧‧‧film soft hinge part

352‧‧‧ Short side

3521‧‧‧film soft hinge

353‧‧‧Flexible ribs

38‧‧‧ kit

381‧‧‧ front groove

382‧‧‧Positioning convex card

383‧‧‧ rear groove

30A‧‧‧Electric Actuation Main Body

38A‧‧‧ kit

381A‧‧‧ inner circumference

30B‧‧‧Electric Actuation Main Body

38B‧‧‧ kit

381B‧‧‧ inner circumference

382B‧‧‧ Groove

3821B‧‧‧stop convex

383B‧‧‧ convex

40‧‧‧ protective cover

41‧‧‧Substrate

42‧‧‧ side panels

421‧‧‧

422‧‧‧The Ministry of Movement

43‧‧‧End plate

44‧‧‧ Layout space

45‧‧‧Interface

451‧‧‧crack

Figure 1 is a perspective view of a first embodiment of the present invention; 2 is an exploded perspective view of a first embodiment of the present invention; FIG. 2A is a partially enlarged perspective view of the second embodiment; and FIG. 3 is a perspective view of a protective cover of the first embodiment of the present invention; Fig. 1 is a cross-sectional view showing the state of the protective cover before the main body is closed; Fig. 4A is a partially enlarged cross-sectional view of Fig. 4; Fig. 5 is a cross-sectional view showing the fully closed state of the protective cover of Fig. 3; Fig. 7 is a perspective exploded view of a second embodiment of the present invention; Fig. 8 is a perspective view showing a state in which a protective cover is closed according to a second embodiment of the present invention; and Fig. 9 is a first view FIG. 9A is a partial enlarged cross-sectional view of the ninth diagram; FIG. 10 is a cross-sectional view of the protective cover fully closed state of FIG. 8; FIG. 12 is a perspective exploded view of a third embodiment of the present invention; FIG. 13 is a perspective view of a protective cover of a third embodiment of the present invention; and FIG. 14A is a needle of FIG. Another description space for the device and the main body Fig. 14B is a perspective view showing the needle device and the main body portion of Fig. 14A; Fig. 14C is a partial sectional view of the needle device of Fig. 14B; and Fig. 15 is the protective cover of Fig. 13 FIG. 16 is a cross-sectional view showing the state in which the protective cover of the protective cover is in the state before the cover is closed; and FIG. 17 is a cross-sectional view showing the fully closed state of the protective cover in FIG.

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, The skilled person will understand more clearly how to practice the invention.

Please refer to FIG. 1 to FIG. 5 at the same time, which is a perspective view and a division of the first embodiment of the present invention. The three-dimensional schematic diagram and the cross-sectional schematic diagram of the safety needle device include an injection needle device 10, a needle device 20, an elastic actuation body portion 30 and a protective sleeve 40.

The needle device 10 includes a syringe 11 having a syringe at the front end of the syringe 11 A plunger push rod 13 is disposed in the joint 12 and the rear end, and the syringe joint 12 has a through hole 121 communicating with the inside of the syringe 11; the needle device 20 includes a needle holder 21, and the needle holder 21 is tightly sleeved on the needle a cartridge joint 12, a needle support sleeve 22 is disposed at a front end of the needle holder 21, and a needle 23 is inserted and coupled to the needle holder 21 through the needle support sleeve 22. The needle holder 21 is provided with four sets of positioning blocks on the outer circumference. 4A), the positioning block includes four sets of chamfered guide blocks 211, four sets of positioning blocks 212, a retaining ring 213 disposed behind the positioning block 212, and a guide ring disposed at the front end of the outer periphery of the needle holder 21. A gap 214 between the block 211 and the positioning block 212.

The elastic actuation body portion 30 includes a fixed U-shaped portion 31 and a movable U-shaped portion. 32 and a V-shaped elastic body 35, the fixed U-shaped portion 31 and the movable U-shaped portion 32 are statically connected to each other in a nearly 90-degree spatial relationship to form a variable-shaped rectangular frame with a through-port 330 therebetween. The V-shaped elastic body 35 is connected to the long end of the rectangular frame in the through-port 330 by a film soft hinge. The fixed U-shaped portion 31 and the movable U-shaped portion 32 are connected to form a variable body by a film soft hinge portion 33. In a preferred embodiment, the film flexible hinge portion 33 is located at both end sides of the opening 330, and the film flexible hinge portion 33 is located at the fixed U-shaped portion 31 and the movable U-shaped portion. The connecting portion 32 has a spatial relationship of the corner ends, so that the fixed U-shaped portion 31 and the movable U-shaped portion 32 can be relatively bent and rotated by the film soft hinge portion 33. The film soft hinge portion 33 has an extra length (as shown in Fig. 1, Fig. 2, Fig. 4) sufficient for the movable U-shaped portion 32 to have sufficient space at the tip end of the film soft hinge portion 33 when it is inverted. The shape of the upper portion of the arm of the fixed U-shaped portion 31 and the cross-section of the arm portion of the fixed U-shaped portion 31 should be sufficiently elastic and the cross-section of the V-shaped elastic body 35 to fully exert its strong elastic force. The elastic section can achieve the optimal state of the turning force of the movable U-shaped portion 32, and the end of the movable U-shaped portion 32 extends upwardly with a vertically protruding insertion portion 34 having a joint portion. 341, a V-shaped elastic body 35 is disposed at a rear portion of the opening 330, and the V-shaped elastic body 35 is formed by a long side 351 and a short side 352 to form an elastic plate body (as shown in FIG. 4), and The V-shaped elastic body 35 is a long side 351, and the film soft hinge portion 3511 is coupled to the fixed U-shaped portion 31 and the short side 352. The film soft hinge portion 3521 is coupled to the movable U-shaped portion 32 to provide a film soft hinge. The portion 33 has sufficient elasticity for the bending operation, and the back of the V-shaped elastic body 35 is additionally provided with elastic ribs 353 as necessary to strengthen the V-shaped projectile 3. The elastic function of 5, the long side 351 of the V-shaped body 35 is substantially larger than the short side 352 by at least 30%, and the preferred length ratio of the long side 351 to the short side 352 is 2 to 1, using the long and short sides. In the present embodiment, the fixed U-shaped portion 31 of the elastically actuating main body portion 30 is integrally coupled to a kit 38, which is a strong engagement force between the two. The inner peripheral wall of the sleeve 38 is provided with four sets of positioning recesses, which are four positioning recesses disposed in a 90 degree relationship with each other in the inner circumference of the sleeve 38. The positioning recesses include a front recess 381 and a rear recess 383. The positioning convex latch 382 between the front and rear grooves 381, 383 is tightly sleeved on the outer circumference of the needle holder 21 by the sleeve 38 when the sleeve 38 is engaged with the needle holder 21 The neutral portion of the four sets of positioning blocks on the outer circumference of the needle holder 21 is engaged with the positioning cam 382 of the circumferential positioning recess in the sleeve 38, and even if the sleeve 38 is positioned and cannot be loosened, That is, the kit 38 of the present embodiment is closely packed with four sets of positioning blocks provided on the outer circumference of the needle holder 21. Fixed to the peripheral wall 38 corresponding to the kit The four sets of positioning recesses, when the positioning clips and the positioning recesses are engaged, can no longer be released and released (as shown in FIG. 4, FIG. 4A and FIG. 5).

The protective cover 40 includes a substrate 41 and two side plates around the substrate 41 42. The sleeve body formed by the end plate 43 and the protective sleeve 40 has a set space 44. The side plate 42 is provided with at least one guard strip 421 extending obliquely to the sleeve space 44, and the two side plates 42 are protected. The strips 421 are disposed in a staggered space relationship, and the side panel 42 is provided with a tilting and outwardly turning portion 422 for facilitating the toggle operation of the protective sleeve 40. The front end of the protective sleeve 40 is provided with a plugging portion 45. The insertion portion 45 is provided with a slit 451 to ensure that the insertion portion 45 is firmly inserted.

When the first embodiment of the safety needle device of the present invention is combined, the protective cover 40 is borrowed The insertion portion 45 is inserted into the joint insertion hole 341 of the insertion portion 34 that protrudes perpendicularly from the movable U-shaped portion 32, and the insertion portion 45 is engaged and positioned at the connection portion insertion hole 341, that is, the activity is completed. The U-shaped portion 32 (the elastic actuation main body portion 30) is assembled and positioned with the insertion portion 45 (the protective sleeve 40), and the elastic actuation main body portion 30 and the protective sleeve 40 are located opposite to the needle holder 21 so that the The protective sleeve 40 is in a position and state in which the needle 23 can be folded after being bent.

Please refer to FIG. 4 and FIG. 5 , which are a protective cover 40 and elasticity of the first embodiment of the present invention. A schematic cross-sectional view of the main body 30 before the capping and fully capping state is performed. When the needle device 10 is to be used to lock the sheath 23, the protective cap 40 is gently moved toward the needle 23, the V When the shape of the elastic body 35 is changed, the V-shaped elastic body 35 starts to store the elastic energy. When the V-shaped elastic body 35 is opened at an angle, the elastic energy stored by the V-shaped elastic body 35 is immediately released. Further, the movable U-shaped portion 32 (protective sleeve 40) is used as the inversion fulcrum with the two side arm ends of the fixed U-shaped portion 31 and the film soft hinge portion 33, so that the movable U-shaped portion 32 (the protective sleeve 40) can be instantaneously turned The fixed U-shaped portion 31 performs a counterclockwise bending rotation, and the huge hinge provided by the V-shaped elastic body 35 The elastic force is such that the operation of the needle 23 is automatically engaged by the finger stroke of the rear stroke of the protective sleeve 40, and the needle 23 is forced to be pressed through the strip 421 to be positioned in the sleeve space 44. That is, it cannot be quit (as shown in Figure 5). It should be noted that when the V-shaped elastic body 35 is to be further reinforced by the elastic force, an elastic rib 353 (as shown in Fig. 3) may be added to the back of the V-shaped elastic body 35.

Please refer to FIG. 6 to FIG. 10 at the same time, which is a perspective view of a second embodiment of the present invention. The exploded injection needle device includes an injection needle device 10, a needle device 20A, an elastic actuation body portion 30A and a protective sleeve 40.

The needle device 10 and the protective cover 40 are the same as in the first embodiment. The relevant explanations are omitted.

The needle device 20A also includes a needle holder 21A that is tightly coupled The needle hub 12 is sleeved, and a needle support sleeve 22A is disposed at the front end of the needle holder 21A. A needle 23 is inserted and coupled to the needle holder 21A through the needle support sleeve 22A. The needle holder 21A is peripherally located at approximately the middle portion. A small convex portion 211A (refer to FIG. 9A) is disposed, and a convex ring 212A is disposed behind the small convex portion 211A, and a neutral portion 200A is formed between the small convex portion 211A and the convex ring 212A.

The elastic actuation body portion 30A also includes a fixed U-shaped portion 31 and an active U. The configuration of the portion 32 and the V-shaped elastic body 35 is substantially the same as that of the first embodiment, and the description will be omitted for simplicity of explanation. The difference is that in the embodiment, the fixed U-shaped portion 31 of the elastic actuation main body portion 30A is integrally coupled to a sleeve 38A. The inner peripheral wall of the sleeve 38A is a smooth inner circumferential surface 381A. The elastic actuation main body portion 30A The sleeve 38A is tightly sleeved on the outer circumference of the needle holder 21A. When the sleeve 38A and the needle holder 21A are engaged with each other, the neutral portion 200A between the small convex portion 211A and the convex ring 212A on the outer circumference of the needle holder 21A is After the inner circumferential surface 381A of the sleeve 38 is engaged with each other, the sleeve 38A cannot be loosened even if it is positioned, that is, the sleeve 38A of the present embodiment is provided at the needle holder. The small convex portion 211A and the convex ring 212A on the outer circumference of the 21A are tightly sleeved on the inner circumferential surface 381A of the sleeve 38A and the widths of the sleeve 38A are locked to each other, and then can no longer be released (as shown in FIG. 9A). ).

Please refer to FIG. 11 to FIG. 17 at the same time, which is a perspective view of a third embodiment of the present invention. The exploded injection needle device includes an injection needle device 10, a needle device 20B, an elastic actuation body portion 30B and a protective sleeve 40.

The needle device 10 and the protective cover 40 are the same as in the first embodiment. The relevant instructions are omitted.

The needle device 20B also includes a needle holder 21B, which is tightly sleeved Connected to the syringe connector 12, a needle support sleeve 22B is disposed at the front end of the needle holder 21B, and a needle 23 is inserted and coupled to the needle holder 21B through the needle support sleeve 22B. The needle holder 21B is on the outer circumference at approximately the middle portion. a single small convex portion 211B (see FIGS. 14A-14C) is disposed, and the two small locking portions 212B and 212B are respectively disposed at positions corresponding to the outer circumference of the intermediate portion of the needle holder 21B at a position corresponding to the outer circumference of the needle holder 21B. The following set 38B forms a mutual locking effect between the small convex portion 211B and the two fastening protrusions 212B.

The difference between this embodiment and the foregoing embodiment is that the elastic actuation body portion The fixed U-shaped portion 31 of the 30B is integrally coupled to a kit 38B. As shown in Figs. 14A to 14C, the inner peripheral wall of the sleeve 38B is divided into a smooth inner peripheral surface 381B and on the smooth inner peripheral surface and the needle holder 21B. A groove 382B is disposed at the corresponding position, and a stopper convex portion 3821B is added to the groove 382B (see FIGS. 14A and 14C) so that the sleeve 38B is coupled with the needle holder 21B, and the small convex portion 211B is received. The blocking protrusion 3821B acts to stop, and at the same time, the pair of locking protrusions 212B, 212B of the needle holder 21B are respectively provided with a pair of convex portions 383B corresponding to the circumferential edge of one side of the sleeve 38B. (See Fig. 14B), so that the elastic actuation body portion 30B is tightly sleeved to the needle with the sleeve 38B. When the outer peripheral surface of the seat 21B, that is, the sleeve 38B and the needle holder 21B are engaged with each other, the small convex portion 211B on the outer circumference of the needle holder 21B and the inner circumferential surface groove 382B of the sleeve 38B are engaged with each other, and the two pairs After the neutral portion 200B between the latching projections 212B and the two convex portions 383B on the outer peripheral side of the sleeve 38B are engaged with each other, the sleeve 38B can be loosened even if the sleeve 38B is positioned at the needle holder 21B. The inner circumferential surface groove 382B of the kit 38B of the present embodiment is engaged with the small convex portion 211B provided on the outer circumference of the needle holder 21B, and the neutral portion 200B between the two pairs of the locking projections 212B of the needle holder 21B The two corresponding convex portions 383B, which are tightly sleeved on one side of the sleeve 38B, can be loosened and released after being tightly fitted and fitted (as shown in Figs. 14C and 15).

The safety needle protection device of the present invention is protected by a combination of ingenious components. The injection needle component made of pure skill technology facilitates the manufacture of the safety needle device and reduces the cost, and the combination thereof is quite stable and does not fall off, thereby achieving excellent safety in use.

The safety injection needle device of the invention provides strength by the V-shaped elastic body and the elastic rib By the elastic force, the stroke of the rear part of the protective sleeve is automatically locked to lock the operation of the needle, and the needle is pressed into the strip, and the positioning in the sleeve space cannot be withdrawn, and the needle can be prevented. The risk of contamination caused by the needles caused by the exposed medical personnel, and the used needles are hidden and fixed inside the protective cover and cannot be taken out, so that the re-use can be eliminated, so that it is extremely humanized and makes the medical staff more operational. Easy and safe.

The above description is only a preferred embodiment of the present invention, and thus is not limited to the present invention. The scope of the patents, and the modifications and equivalent structural changes made by the description of the present invention and the contents of the drawings are all included in the scope of the invention.

10‧‧‧Injection needle device

11‧‧‧Syringe

12‧‧‧Syringe connector

13‧‧‧Piston putter

20‧‧‧needle device

21‧‧‧ needle seat

211‧‧‧ Guide block

22‧‧‧Needle support sleeve

23‧‧‧ needle

30‧‧‧Electrical Actuation Main Body

31‧‧‧Fixed U-shaped

32‧‧‧ Activities U-shaped

33‧‧‧film soft hinge part

330‧‧‧ mouth

34‧‧‧Received part

35‧‧‧V-shaped elastomer

38‧‧‧ kit

381‧‧‧ front groove

40‧‧‧ protective cover

41‧‧‧Substrate

42‧‧‧ side panels

421‧‧‧

422‧‧‧The Ministry of Movement

43‧‧‧End plate

44‧‧‧ Layout space

45‧‧‧Interface

Claims (22)

A safety injection needle device, characterized in that the safety injection needle device comprises: an injection needle device (10) comprising a syringe (11) having a syringe joint (12) at the front end thereof and a needle device (20) The utility model comprises a needle seat (21) sleeved on the syringe joint (12), a needle head (23) is arranged at the front end of the needle seat (21), and the outer peripheral end of the needle seat (21) is provided with a position block; The main body portion (30) includes a fixed U-shaped portion (31), a movable U-shaped portion (32), a film soft hinge portion (33), a V-shaped elastic body (35) and a kit (38). The film soft hinge portion (33) is disposed between the end portions of the two U-shaped portions and has a relatively loose connection length of the film soft hinge portion (33), so that the two U-shaped portions are connected by a loose connection length The fixed U-shaped portion (31) and the movable U-shaped portion (32) can perform a relative bending-free turning operation without resistance by the slack length film soft hinge portion (33), and the two U-shaped portions are disposed a port (330), a V-shaped elastic body (35) is disposed at both ends of the port (330), and a film soft hinge portion (3511) of the long side (351) of the V-shaped elastic body (35) is connected to The fixed U-shaped portion (31) is preset The film soft hinge portion (3521) of the short side (352) of the V-shaped elastic body (35) is connected to the predetermined length of the movable U-shaped portion (32), and is performed on the two U-shaped portions. a sufficiently sufficient elastic force is provided during the bending operation, and a distal end of the movable U-shaped portion (32) is provided with a receiving portion (34) integrally coupled to the sleeve (38), and the fixed U-shaped portion (31) is integrally coupled to the sleeve (38) The elastic actuation body portion (30) is sleeved on the needle seat (21) by the sleeve (38); a protective sleeve (40) having a set space (44), the protective sleeve ( 40) a front end side is provided with a plug portion (45), and the plug portion (45) is coupled to the insertion portion (34) extending upward from the end of the movable U-shaped portion (32) to make the movable U-shaped portion ( 32) Connected to the protective cover (40). The safety needle device of claim 1, wherein the positioning card comprises a set of four chamfered guide blocks (211), a positioning block (212), a retaining ring (213) disposed behind the positioning block (212), and a guide ring disposed at the front end of the outer periphery of the needle holder (21) a neutral portion (214) between the block (211) and the positioning block (213); a four-way positioning recess disposed in a 90-degree relationship with each other in the inner circumference of the sleeve (38), the positioning recess portion including a front groove (381) a rear recess (383) and a positioning cam (382) disposed between the front and rear recesses (381, 383). The safety needle device of claim 2, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3521) (32) ) the predetermined length. The safety needle device of claim 2, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 2, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 1, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3521) (32) ) the predetermined length. The safety needle device of claim 6, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 6, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 6, wherein the V-shaped elastic body (35) There is at least one elastic rib (353) thereon. The safety needle device of claim 1 or 2, wherein the end of the movable U-shaped portion (32) extends upwardly with a vertically projecting insertion portion (34), the insertion portion (34) The connector (45) has a socket (341), and the connector (45) of the sleeve (40) is inserted into the socket (341) to fix the connector (45) to the connector. Jack (341). The safety needle device of claim 1 or 2, wherein the elastic actuation body portion (30) and the kit (38) are closely arranged by four sets of positioning blocks provided on the outer circumference of the needle holder (21). The four sets of positioning recesses are fixed on the inner peripheral wall of the sleeve (38), and the positioning clips and the positioning recesses can no longer be released and released once they are engaged. A safety injection needle device, characterized in that the safety injection needle device comprises: an injection needle device (10) comprising a syringe (11) having a syringe connector (12) at its front end and a needle device (20A) The utility model comprises a needle seat (21A) sleeved on the needle barrel joint (12), a needle head (23) is arranged at the front end of the needle head seat (21A), and a positioning small convex part (211A) is arranged on the outer circumference of the needle head seat (21A). And a convex ring (212A), thereby forming a neutral portion (200A) between the positioning small convex portion (211A) and the convex ring (212A); an elastic actuating main body portion (30A) including a fixed U-shaped portion (31), a movable U-shaped portion (32), a film flexible hinge portion (33), a V-shaped elastic body (35), and a kit (38A), wherein the film soft hinge portion (33) is disposed a film soft hinge portion (33) having a relatively loose connection length between the tip portions of the two U-shaped portions, the two U-shaped portions being integrally connected by a slack connection length; the fixed U-shaped portion (31) and The movable U-shaped portion (32) can perform a non-resistive relative bending and reversing operation by the slack length film soft hinge portion (33), and a through port (330) is disposed between the two U-shaped portions, the through port (330) a V-shaped elastic at both ends (35) the long side (35), the V-shaped elastic member The film flexible hinge portion (3511) of (351) is a film soft hinge portion connected to a predetermined length of the fixed U-shaped portion (31), and the short side (352) of the V-shaped elastic body (35) 3521) is connected to the preset length of the movable U-shaped portion (32) to provide sufficient sufficient elastic force when the two U-shaped portions are bent, and the movable U-shaped portion (32) is provided with a distal end The insertion portion (34), the fixed U-shaped portion (31) is integrally coupled to the sleeve (38A), and the elastic actuation body portion (30A) is sleeved on the needle holder (21A) by the sleeve (38A); a protective sleeve (40) having a set of spaces (44), the front end of the protective sleeve (40) is provided with a plug portion (45), and the plug portion (45) is assembled A receiving portion (34) extending upward from the end of the movable U-shaped portion (32) connects the movable U-shaped portion (32) with the protective cover (40). The safety needle device of claim 12, wherein the inner peripheral wall of the kit (38A) is a smooth inner peripheral surface (381A), and the elastic actuation body portion (30A) is tightly fitted with the kit (38A). Connected to the outer circumference of the needle holder (21A), when the kit (38A) and the needle holder (21A) are engaged with each other, between the small convex portion (211A) and the convex ring (212A) on the outer circumference of the needle holder (21A) The neutral portion (200A) is locked to both sides of the width of the inner circumferential surface (381A) of the kit (38A) and the sleeve (38A), and the sleeve (38A) cannot be loosened even if it is positioned. The safety needle device of claim 13, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3521) (32) ) the predetermined length. The safety needle device of claim 14, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 14, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. A safety injection needle device, characterized in that the safety injection needle device comprises: an injection needle device (10) comprising a syringe (11) having a syringe connector (12) at the front end thereof and a needle device (20B) The utility model comprises a needle seat (21B) sleeved on the syringe joint (12), a needle head (23) is arranged at the front end of the needle seat (21B), and a positioning device is arranged at the outer peripheral end of the needle seat (21B); The main body portion (30B) includes a fixed U-shaped portion (31), a movable U-shaped portion (32), a film soft hinge portion (33), a V-shaped elastic body (35), and a kit (38B). The film soft hinge portion (33) is disposed between the end portions of the two U-shaped portions and has a relatively loose connection length of the film soft hinge portion (33), so that the two U-shaped portions are connected by a loose connection length The fixed U-shaped portion (31) and the movable U-shaped portion (32) can perform a relative bending-free turning operation without resistance by the slack length film soft hinge portion (33), and the two U-shaped portions are disposed a port (330), a V-shaped elastic body (35) is disposed at both ends of the port (330), and a film soft hinge portion (3511) of the long side (351) of the V-shaped elastic body (35) is connected to The fixed U-shaped portion (31) The predetermined length of the film, and the film soft hinge portion (3521) of the short side (352) of the V-shaped elastic body (35) is connected to the preset length of the movable U-shaped portion (32), The shape portion provides sufficient sufficient elastic force when performing the bending operation, and the movable U-shaped portion (32) is provided with a receiving portion (34) at the end, and the fixed U-shaped portion (31) is integrally coupled to the sleeve (38B) And the elastic actuation body portion (30B) is sleeved on the needle holder (21B) by the sleeve (38B); a protective sleeve (40) having a set space (44), the protective sleeve (40) The front end of the protective sleeve (40) is provided with a plug portion (45), and the plug portion (45) is assembled at the end of the movable U-shaped portion (32) The upwardly extending receiving portion (34) connects the movable U-shaped portion (32) with the protective sleeve (40). The safety needle device of claim 17, wherein the positioning device of the outer periphery of the needle holder (21B) comprises a single small convex portion (211B) disposed at an outer portion of the outer periphery of the needle holder (21B). The small convex portion (211B) is respectively provided with two pairs of fastening protrusions (212B, 212B) at positions corresponding to the outer circumference of the intermediate portion of the needle holder (21B), and the inner peripheral wall of the sleeve (38B) is removed. a smooth inner circumferential surface (381B) and a groove (382B) corresponding to the needle seat (21B) at the smooth inner circumferential surface, and a blocking convex portion in the groove (382B) (3821B), so that the small convex portion (211B) is restrained by the locking convex portion (3821B) by the coupling of the kit (38B) and the needle holder (21B), and at the same time as the aforementioned needle holder (21B) The two pairs of latching projections (212B, 212B) are provided with a pair of convex portions (383B) corresponding to the outer peripheral edge of one side of the sleeve (38B) at a position corresponding to 180 degrees, thereby actuating the main body portion (30B) When the kit (38B) is tightly sleeved on the outer peripheral surface of the needle holder (21B), the kit (38B) and the needle holder (21B) are fitted to each other, and the small convex portion (211B) on the outer circumference of the needle holder (21B) is With the The blocking projections (3821B) of the inner peripheral groove (382B) of the piece (38B) are engaged with each other, and the neutral portion (200B) between the two pairs of the locking projections (212B) is further coupled to the sleeve (38B). The two convex portions (383B) on one side are engaged with each other to be released even if the kit (38B) is positioned at the needle holder (21B). The safety needle device of claim 18, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3521) (32) ) the predetermined length. The safety needle device of claim 18, wherein the V-shaped elastomer The long side (351) of (35) is at least 30% larger than the short side (352). The safety needle device of claim 18, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 17, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3521) (32) ) the predetermined length.