CN211327459U - Retraction needle type infection-preventing syringe for diabetes - Google Patents

Abstract

The utility model provides a diabetes is with returning needle type infection-preventing syringe that contracts, including the needle tubing, the inside activity of needle tubing is pegged graft and is had outer loop and backup pad, and the inside activity of outer loop is pegged graft and is had interior pole, and the bottom activity of dead lever articulates there is the piston pad, and the bottom movable mounting of needle tubing has a seat of turning round, and the inside of needle tubing just is located the top fixedly connected with baffle of turning round the seat, and the below activity of drain hole is pegged graft and is had the needle file of T shape, and the outside swing joint of needle file has evenly distributed's shrouding, turns round the inside fixed mounting. After the injector is used, the outer ring slides upwards, the piston pad deflects under the action of the torsion spring, then the torsion seat rotates to the position below the collection hole, the needle seat, the injection needle and the pressure spring are upwards popped out, the pricking needle breaks the glass plate, the rotating ring drives the sealing plate to rotate under the pulling of the tension spring, the collection hole is sealed, the injection needle is prevented from falling off, and the injector is guaranteed to be discarded without causing damage and pollution to the outside.

Description

Retraction needle type infection-preventing syringe for diabetes

Technical Field

The utility model relates to the technical field of medical syringes, in particular to a retraction needle type anti-infection syringe for diabetes.

Background

Diabetes is a group of metabolic diseases characterized by hyperglycemia, is a common disease affecting the health of people at present, the prevalence rate and incidence rate of diabetes are rapidly increased in the global range, diabetes cannot be cured at present, but most of diabetics have the same quality of life and life span as non-diabetics through a scientific and reasonable treatment method.

At present, the treatment medicines for diabetes mainly comprise two types of oral medicines and injection preparations, most patients cannot control blood sugar by only orally taking hypoglycemic medicines in the later period, and medicaments such as insulin and the like are also injected at the same time.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a diabetes is with contracting infection syringe of needle formula of contracting, by following concrete technological means reach:

a retraction needle type anti-infection syringe for diabetes comprises a needle tube, wherein an outer ring and a supporting plate are movably inserted in the needle tube, an inner rod is movably inserted in the outer ring, a fixed rod is fixedly connected to the bottom of the inner rod, a piston pad is movably hinged to the bottom of the fixed rod and positioned below the supporting plate, a button cap is movably mounted on the outer wall of the outer ring, an insertion rod inserted in the inner rod is mounted on the button cap, an upper insertion groove and a lower insertion groove corresponding to the insertion rod are formed in the outer side of the inner rod, a torsion seat is movably mounted at the bottom of the needle tube, a partition plate is fixedly connected to the inner portion of the needle tube and positioned above the torsion seat, a liquid guide hole and a storage hole are formed in the partition plate, a central column inserted in the torsion seat is fixedly connected to the bottom of the partition plate, a T-shaped needle seat is movably inserted in the inner portion of, turn round the inside of seat and the outside swing joint that is located the needle file has evenly distributed's shrouding, turn round the inside of seat and the outside swing joint that is located the shrouding has the change, through connecting rod swing joint between change and the shrouding, turn round the inside of seat and be located the below of needle file upper segment and install the pressure spring, the extension spring is installed in the outside of change, the inside fixed mounting who turns round the seat has the glass board that blocks the extension spring, one side fixed mounting that the change was kept away from to the center post has the felting needle that corresponds with the glass board.

Preferably, the supporting plates are uniformly distributed and fixedly arranged at the bottom of the outer ring, and the diameter of the outer ring of the supporting plate is matched with the inner diameter of the needle tube, so that the outer ring and the supporting plates cannot shake when sliding inside the needle tube.

Preferably, a pushing part is arranged at the top end of the inner rod.

Preferably, a torsion spring is installed on a hinged shaft of the fixing rod and the piston pad, and after the supporting plate is separated from the piston pad, the piston pad deflects under the action of the torsion spring.

Preferably, the twisting seat is provided with a positioning device to ensure that the twisting seat can be positioned, and the twisting seat and the central column are positioned on the same vertical axis.

Preferably, the aperture of the liquid guide hole is smaller than the outer diameter of the needle seat, and the aperture of the collection hole is larger than the outer diameter of the needle seat.

Preferably, the needle seat is internally provided with a through hole for communicating the liquid guide hole and the injection needle.

Preferably, the sealing plates are uniformly distributed along the vertical center line of the needle seat.

Preferably, the bottom end of the pressure spring movably abuts against the torsion seat, the top end of the pressure spring is fixedly installed below the upper section of the needle seat, one end of the tension spring is fixedly installed on the outer wall of the rotary ring, and the other end of the tension spring is fixedly installed on the torsion seat.

Preferably, the bottom of the glass plate is movably provided with a pushing spring and a clamping plate, and the bottom of the partition plate is provided with a clamping groove corresponding to the clamping plate.

The utility model has the advantages that:

1. after the injector is used, the button cap is pressed down to enable the outer ring to move upwards and be fixed on the inner rod again through the inserted link and the upper insertion hole, the constraint of the supporting plate is lost, the piston pad deflects under the action of the torsion spring, then the torsion seat is twisted to enable the torsion seat to rotate to the position below the collection hole, the needle seat, the injection needle and the pressure spring are upwards popped out under the pushing action of the pressure spring, then the torsion seat drives the rotary ring to rotate to enable the puncture needle to be in contact with the glass plate and puncture and break the puncture needle, the constraint of the glass plate is lost, the rotary ring rotates under the pulling action of the tension spring and drives the sealing plate to rotate, the collection hole is sealed, the injection needle is prevented from falling off from the collection hole, the condition that after the injector is used and discarded, the puncture damage to the outside.

2. The outer ring, the supporting plate, the inner rod, the fixing rod and the piston pad are fixed and integrated, so that the stability of the components in the movement of the needle tube is ensured, and the function of the injection rod in a common injector can be realized.

3. Through the arrangement of the piston pad, the piston pad is movably hinged on the fixed rod, and after the piston pad moves on the supporting plate, the piston pad can deflect, a space can be reserved for the needle base and the injection needle, and the injection needle can be guaranteed to be smoothly bounced into the needle tube to be concealed.

4. Turn round the seat and drive the swivel joint rotatory when making felting needle and glass sheet contact, the glass sheet also changes the draw-in groove below to the baffle bottom, after the glass sheet is smashed by the felting needle, the cardboard of glass sheet bottom rebound and card are in the draw-in groove of baffle bottom under the promotion of top push spring for turn round the seat and can't be twisted again, just also prevented this syringe in the effect of used back by reuse, avoided the syringe from the source by the phenomenon of illegal reuse, guaranteed the security of using.

Drawings

Fig. 1 is a front sectional view of the utility model in an initial state;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion B of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the connection structure of the inner rod and the piston pad of the present invention;

FIG. 5 is a schematic view of the connection structure between the outer ring and the supporting plate of the present invention;

fig. 6 is a top cross-sectional view of the sealing plate and torsion seat mounting structure of the present invention;

FIG. 7 is an enlarged view of a portion C of FIG. 6 according to the present invention;

FIG. 8 is a front sectional view of the utility model in a post-use state;

fig. 9 is a top view of the sealing plate of the present invention in a closed state;

fig. 10 is a schematic view of the installation of the glass plate and the torsion seat of the present invention.

In the figure: 1. a needle tube; 2. an outer ring; 3. a support plate; 4. an inner rod; 5. fixing the rod; 6. a piston pad; 7. a button cap; 8. inserting a rod; 9. a jack; 10. twisting a seat; 11. a partition plate; 12. a drain hole; 13. a collection hole; 14. a central column; 15. a needle seat; 16. an injection needle; 17. closing the plate; 18. rotating the ring; 19. a connecting rod; 20. a pressure spring; 21. a tension spring; 22. a glass plate; 23. a needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, a retraction needle type anti-infection syringe for diabetes comprises a needle tube 1, an outer ring 2 and a support plate 3 are movably inserted in the needle tube 1, an inner rod 4 is movably inserted in the outer ring 2, a fixing rod 5 is fixedly connected to the bottom of the inner rod 4, a piston pad 6 is movably hinged to the bottom of the fixing rod 5 and located below the support plate 3, a button cap 7 is movably mounted on the outer wall of the outer ring, an insertion rod 8 inserted in the inner rod 4 is mounted on the button cap 7, an upper slot 9 and a lower slot 9 corresponding to the insertion rod 8 are formed in the outer side of the inner rod 4, a torsion seat 10 is movably mounted at the bottom of the needle tube 1, a partition plate 11 is fixedly connected to the inside of the needle tube 1 and located above the torsion seat 10, a liquid guide hole 12 and a collection hole 13 are formed in the partition plate 11, a central column 14 inserted in the torsion seat 10 is fixedly connected to the bottom of the partition plate 11, a needle seat 15 in a, the lower extreme of needle file 15 just is located the fixed syringe needle 16 that has cup jointed of below of needle tubing 1, turn round the inside of seat 10 and the outside swing joint that is located needle file 15 has evenly distributed's shrouding 17, turn round the inside of seat 10 and the outside swing joint that is located shrouding 17 has swivel 18, through connecting rod 19 swing joint between swivel 18 and the shrouding 17, turn round the inside of seat 10 and the below that is located the needle file 15 upper segment and install pressure spring 20, extension spring 21 is installed in the outside of swivel 18, turn round the inside fixed mounting of seat 10 and have the glass board 22 that blocks extension spring 21, one side fixed mounting that center post 14 kept away from swivel 18 has the felting needle 23 that corresponds with glass board 22.

Wherein, the fixed mounting of backup pad 3 evenly distributed is in the bottom of outer loop 2, and the outer lane diameter of backup pad 3 and the internal diameter phase-match of needle tubing 1 to guarantee that outer loop 2 and backup pad 3 can not rock when needle tubing 1 is inside to slide.

Wherein, the top end of the inner rod 4 is provided with a pushing piece.

Wherein, the articulated shaft of dead lever 5 and piston pad 6 is installed the torsional spring, and after backup pad 3 and piston pad 6 separation, piston pad 6 takes place to deflect under the effect of torsional spring.

Wherein, turn round and be provided with positioner on the seat 10, guarantee to turn round seat 10 and can fix a position, turn round seat 10 and central column 14 and lie in same vertical axis.

Wherein, the aperture of the liquid guiding hole 12 is smaller than the outer diameter of the needle seat 15, and the aperture of the collection hole 13 is larger than the outer diameter of the needle seat 15.

Wherein, the needle seat 15 is provided with a through hole for communicating the liquid guide hole 12 and the injection needle 16.

Wherein the closing plates 7 are uniformly distributed along the vertical center line of the needle seat 15.

The bottom end of the pressure spring 20 is movably abutted to the torsion seat 10, the top end of the pressure spring 20 is fixedly installed below the upper section of the needle seat 15, one end of the tension spring 21 is fixedly installed on the outer wall of the rotary ring 18, and the other end of the tension spring is fixedly installed on the torsion seat 10.

Wherein, the bottom of the glass plate 22 is movably provided with a pushing spring and a clamping plate, and the bottom of the partition plate 11 is provided with a clamping groove corresponding to the clamping plate.

The working principle is as follows: when the injector is not used, the inserting rod 8 is inserted into the inserting hole 9 below the inner rod 4, the outer ring 2 and the supporting plate 3 are fixedly connected with the inner rod 4 through the inserting rod 8, the supporting plate 3 is abutted to the upper side of the piston pad 6 to fix the piston pad and prevent the piston pad 6 from deflecting, the needle seat 15 and the injection needle 16 are positioned below the liquid guide hole 12, the pressure spring 20 is in a compressed state, the sealing plate 17 is in an opening state and cannot influence the up-and-down movement of the needle seat 15, and the injector is shown in figures 1 to 7.

When the injector is used, the outer ring 2, the support plate 3, the inner rod 4, the fixing rod 5 and the piston pad 6 are fixed and positioned into a whole, the function of an injection rod in a common injector can be realized, after the injection is finished, the button cap 7 is pressed (the button cap 7 can adopt a common pen cap pressing type structure, and is not described in detail because of the prior art), so that the insertion rod 8 retracts, then the outer ring 2 is pushed upwards, the button cap 7 is pressed again, the outer ring 3 is fixed on the inner rod 4 again through the insertion rod 8 and the upper insertion hole 9, the constraint of the support plate 3 is lost, and the piston pad 6 deflects under the action of a torsion spring, as shown in fig. 7; then the torsion seat 10 is twisted to rotate to the lower part of the storage hole 13, the needle seat 15, the injection needle 16 and the pressure spring 20 are upwards ejected under the pushing of the pressure spring 20, and as the piston pad 6 is already deflected, a space is left for the needle seat 15 and the injection needle 16, and the state at this time is as shown in fig. 8; then, the twist seat 10 drives the rotation ring 18 to rotate so that the puncture needle 23 contacts with the glass plate 22 and punctures and breaks the glass plate, at the moment, the glass plate 22 also rotates to the position below the clamping groove at the bottom of the partition plate 11 (as shown in fig. 10), the constraint of the glass plate 22 is lost, the rotation ring 18 rotates under the pulling of the tension spring 21 and drives the sealing plate 17 to rotate so as to seal the storage hole 13, at the moment, the state is shown in fig. 9, the injection needle 16 is prevented from falling off from the storage hole 13, the syringe is ensured not to cause puncture damage to the outside after being discarded after being used, and after the glass plate 22 is broken by the puncture needle 23, the clamping plate at the bottom of the glass plate moves upwards under the pushing of the pushing spring and is clamped in the clamping groove at the bottom of the partition plate 11, so that the twist seat 10 can not be twisted any more, the effect that the syringe is prevented from being reused after being used, and, the safety of use is guaranteed.

The above embodiments are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (9)

1. A retraction needle type anti-infection syringe for diabetes comprises the following components: comprises a needle tube (1), an outer ring (2) and a supporting plate (3) are movably inserted in the needle tube (1), an inner rod (4) is movably inserted in the outer ring (2), a fixing rod (5) is fixedly connected to the bottom of the inner rod (4), a piston pad (6) is movably hinged to the bottom of the fixing rod (5) and is positioned below the supporting plate (3), a button cap (7) is movably installed on the outer wall of the outer ring, an inserting rod (8) inserted in the inner rod (4) is installed on the button cap (7), an upper slot (9) and a lower slot (9) corresponding to the inserting rod (8) are formed in the outer side of the inner rod (4), a torsion seat (10) is movably installed at the bottom of the needle tube (1), a partition plate (11) is fixedly connected to the inner part of the needle tube (1) and is positioned above the torsion seat (10), a liquid guide hole (12) and a collection hole (13) are formed in the partition plate (11), a central column (, the needle base (15) with the T shape is movably inserted in the inner portion of the twisting seat (10) and located below the liquid guide hole (12), an injection needle (16) is fixedly sleeved and connected to the lower end of the needle base (15) and located below the needle tube (1), a sealing plate (17) which is uniformly distributed is movably connected to the outer side of the twisting seat (10) and located outside the sealing plate (15), a rotating ring (18) is movably connected to the outer side of the twisting seat (10) and located outside the sealing plate (17), a connecting rod (19) is movably connected between the rotating ring (18) and the sealing plate (17), a pressure spring (20) is installed in the inner portion of the twisting seat (10) and located below the upper section of the needle base (15), a tension spring (21) is installed on the outer side of the rotating ring (18), a glass plate (22) clamping the tension spring (21) is fixedly installed in the inner portion of the twisting seat (10), and a central column (23) corresponding to the glass plate (22) is fixedly installed.

2. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the supporting plates (3) are uniformly distributed and fixedly arranged at the bottom of the outer ring (2), and the diameter of the outer ring of the supporting plate (3) is matched with the inner diameter of the needle tube (1).

3. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the top end of the inner rod (4) is provided with a pushing piece.

4. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: and a torsional spring is arranged on the hinged shaft of the fixed rod (5) and the piston pad (6).

5. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the torsion seat (10) is provided with a positioning device, and the torsion seat (10) and the central column (14) are positioned on the same vertical axis.

6. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the aperture of the liquid guide hole (12) is smaller than the outer diameter of the needle seat (15), and the aperture of the collection hole (13) is larger than the outer diameter of the needle seat (15).

7. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the needle seat (15) is internally provided with a through hole for communicating the liquid guide hole (12) with the injection needle (16).

8. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the bottom end of the pressure spring (20) is movably abutted against the torsion seat (10), the top end of the pressure spring (20) is fixedly installed below the upper section of the needle seat (15), one end of the tension spring (21) is fixedly installed on the outer wall of the rotating ring (18), and the other end of the tension spring is fixedly installed on the torsion seat (10).

9. The retracting needle type infection preventing syringe for diabetes according to claim 1, characterized in that: the bottom of the glass plate (22) is movably provided with a pushing spring and a clamping plate, and the bottom of the partition plate (11) is provided with a clamping groove corresponding to the clamping plate.

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