Disposable sterile insulin syringe

Abstract

The utility model relates to the technical field of insulin injection, in particular to a disposable sterile insulin syringe. The disposable sterile insulin syringe comprises a syringe barrel, a connecting pipe, a needle head, a stress plate, a piston, a push rod and a push plate, the left end of the syringe barrel is connected with the connecting pipe, the connecting pipe is connected with the needle head, the right end of the syringe barrel is connected with the stress plate, the push rod is connected into the syringe barrel in a sliding mode, and the piston is connected with the push rod. The left end of the push rod is connected with a piston, the right end of the push rod is connected with a push plate, a groove is formed in the lower side of the right end of the push rod, the connecting block is placed in the groove, and the left side of the lower portion of the stress plate is connected with the limiting block and the elastic piece. Through the arrangement of the connecting block, the limiting block and the elastic piece, the push rod can be braked through simple operation, it is ensured that the push rod is not prone to being pulled after an injector is used, medical workers are prompted that the injector is used, and the risk of repeated use is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to insulin injection technical field especially relates to a kind of disposable use sterile insulin syringe. BACKGROUND

[0002] Insulin is the only hypoglycemic hormone in the body, its main physiological effect is to inhibit hepatic glycogenolysis, inhibit gluconeogenesis to reduce the production of glucose, and increase the utilization capacity of glucose by tissues and organs. And insulin syringe is a kind of medical equipment specially designed for diabetic patients to inject insulin themselves. It usually includes an elongated needle, a small volume syringe barrel for loading insulin and a piston for advancing insulin.

[0003] The patent with the patent authorization announcement No. CN218106506U discloses a kind of disposable insulin syringe of preventing residual, including injection device and extrusion device, the injection device includes liquid-filled cylinder, stress plate, pressure rod, pressing plate, connecting pipe and piston, the inside of the liquid-filled cylinder is hollow structure, the stress plate is fused with the right end outer side wall of the liquid-filled cylinder, the connecting pipe is fused in the left side wall of the stress plate, the piston is in sliding contact with the inner side wall of the liquid-filled cylinder, the pressure rod is inserted in the right side wall of the piston. The above-mentioned patent can avoid the waste of insulin by installing extrusion device in the inner cavity of pressure rod, but there are still deficiencies in actual use, for example, the syringe is disposable, after use, there is no obvious prompting mechanism, the syringe has been used cannot be prompted, especially in the busy environment of hospital, medical staff cannot always pay attention to the state of syringe, it is easy to cause the syringe to be reused, increase the risk of cross infection.

[0004] Therefore, it is particularly necessary to provide a disposable sterile insulin syringe to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings of the prior art, such as lack of obvious prompting mechanism, inability to prompt the used state, and easy to cause the syringe to be reused in the busy environment of hospital, increase the risk of cross infection, the technical problem is to provide a disposable sterile insulin syringe.

[0006] The technical scheme of the utility model is: a kind of disposable use sterile insulin syringe, including syringe barrel, connecting pipe, needle, stress plate, piston, push rod and push plate, syringe barrel left end is connected with connecting pipe, connecting pipe is connected with needle, syringe barrel right end is connected with stress plate, push rod is slidably connected in syringe barrel, the left end of push rod is connected with piston, and the right end is connected with push plate, further including connecting block, limit block and elastic sheet, recess is set in the lower side of the right end of push rod, connecting block is placed in the recess, limit block and elastic sheet are connected to the left side of the lower part of stress plate.

[0007] Further, the push block and the sliding rod are further included, the sliding rod is slidably connected in the push rod, the sliding rod passes through the piston, and the push block is connected to the upper side of the right end of the sliding rod.

[0008] Further, the scale line is further included, and the scale line is printed on the upper side of the outer part of the syringe barrel.

[0009] Further, the cap is further included, and the cap is sleeved on the needle head and used for protection and dust prevention.

[0010] Further, the elastic belt is further included, and the elastic belt is connected to the stress plate and distributed in front and back.

[0011] Further, the plurality of grooves are longitudinally distributed on the stress plate.

[0012] Beneficial effects are that: the utility model discloses a connecting block, a limiting block and an elastic sheet are arranged, the push rod can be braked through simple operation, the syringe is not easy to pull the push rod after use, medical staff is prompted that the syringe has been used, and the risk of repeated use is reduced.

[0013] The utility model discloses a push block and a sliding rod are arranged, can ensure that the insulin in the connecting pipe is also squeezed into the needle head after injection is completed, and the waste of insulin is avoided.

[0014] The utility model discloses a cap is arranged, and the cap is sleeved on the needle head and can protect the needle head from being polluted and damaged.

[0015] The utility model discloses an elastic belt is arranged, prevents the finger of medical staff from separating from the stress plate, so that medical staff can hold the syringe more firmly, and the stability of operation is improved. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is the partial section view of the syringe barrel, the connecting pipe and the needle head of the utility model.

[0018] Figure 3 It is the utility model Figure 2 The enlarged schematic view of A in the utility model.

[0019] Figure 4 It is the partial section view of the push rod, the push block and the sliding rod of the utility model.

[0020] Figure 5 It is the three-dimensional structure schematic diagram of the piston, the push rod and the push plate of the utility model.

[0021] In the drawing: 1-syringe barrel, 101-connecting tube, 102-scale line, 2-needle, 3-cap, 4-stress plate, 5-elastic band, 6-piston, 7-push rod, 8-push plate, 9-push block, 10-sliding rod, 11-groove, 12-connecting block, 13-limiting block, 14-elastic sheet. DETAILED DESCRIPTION

[0022] The utility model will be specifically introduced below in combination with the drawings and specific embodiments.

[0023] Embodiment: a kind of disposable sterile insulin syringe, refer to Figures 1-5 As shown, including syringe barrel 1, connecting tube 101, scale line 102, needle 2, cap 3, stress plate 4, elastic band 5, piston 6, push rod 7 and push plate 8, the left end of syringe barrel 1 is connected with connecting tube 101 by bonding, the outside upper side of syringe barrel 1 is printed with scale line 102, for measuring the dosage of insulin, needle 2 is connected on connecting tube 101 by bonding, needle 2 is provided with cap 3 for protection and dust prevention, the right end of syringe barrel 1 is connected with stress plate 4 by bonding, and a plurality of grooves 11 distributed longitudinally are arranged on stress plate 4, to increase the friction between the fingers of medical staff and stress plate 4, elastic band 5 distributed in front and back is connected on stress plate 4 by bonding, to limit the fingers of medical staff, push rod 7 is slidably connected in the inside of syringe barrel 1 by bonding, piston 6 is connected on the left end of push rod 7 by bonding, and push plate 8 is connected on the right end by bonding, further including connecting block 12, limiting block 13 and elastic sheet 14, recess 11 is formed in the lower side of the right end of push rod 7, connecting block 12 is placed in the inside of recess 11, limiting block 13 and elastic sheet 14 are connected on the left side of the lower part of stress plate 4 by bonding, limiting block 13 contacts with connecting block 12, so that connecting block 12 is limited in the inside of recess 11, connecting block 12 contacts with elastic sheet 14, so that elastic sheet 14 is extruded and deformed.

[0024] As shown in Figure 1 , Figure 2 and Figure 4 Further including push block 9 and sliding rod 10, sliding rod 10 is slidably connected in the inside of push rod 7 by bonding, sliding rod 10 passes through piston 6, and push block 9 is connected on the right end upper side of sliding rod 10 by bonding, push block 9 slides on the right end of push rod 7, the outer diameter of sliding rod 10 is same size with the inner diameter of connecting tube 101, to ensure that sliding rod 10 can extrude insulin in the inside of connecting tube 101 sufficiently.

[0025] At the beginning, the elastic sheet 14 is pressed by the connecting block 12 and is in a deformed state. When the patient needs to be injected with insulin, the medical staff first inserts the index finger and the middle finger of the left hand into the space between the two elastic belts 5 and the left and right sides of the stress plate 4, respectively, so that the finger pads are attached to the stress plate 4, thereby holding the syringe barrel 1. Then, the protective cap 3 is pulled off to expose the needle 2, the needle 2 is inserted into the insulin bottle, and then the right hand holds the push plate 8 and pulls the push rod 7 to the right, thereby driving the piston 6 to move to the right, so that the negative pressure is generated in the syringe barrel 1, and the insulin in the bottle is drawn into the syringe barrel 1 through the needle 2. The dose of insulin is measured by the scale line 102 to ensure the accuracy of the dose of insulin. When the push rod 7 is pulled to the right, the right hand needs to press against the connecting block 12 to prevent it from falling out of the groove 11. The outer wall of the push rod 7 replaces the connecting block 12 to continue to press the elastic sheet 14, so that the elastic sheet 14 remains in a deformed state. After the appropriate amount of insulin is drawn in, the needle 2 is inserted into the patient's skin, and then the push rod 7 is pushed to the left, thereby driving the piston 6 to move to the left, so that the insulin in the syringe barrel 1 is squeezed into the needle 2 and injected into the patient's body. When the piston 6 moves to the left to the limit position, the right hand presses the push block 9 to the left, thereby driving the sliding rod 10 to move to the left and extend into the connecting tube 101, so that the insulin in the connecting tube 101 is squeezed into the needle 2, thereby avoiding waste of insulin. After the injection is completed, the needle 2 is pulled out of the patient's skin, the protective cap 3 is put back on, and then the push rod 7 is pulled to the right again, so that the connecting block 12 falls out of the groove 11 under the action of inertia, and the groove 11 is aligned with the elastic sheet 14. The elastic sheet 14 no longer is pressed by the connecting block 12 and returns to its original shape, so that it is clamped into the groove 11 to brake the push rod 7, thereby preventing the push rod 7 from being easily pulled next time, and prompting the medical staff that the syringe has been used.

[0026] It is worth noting that when the connecting block 12 and the push rod 7 press the elastic sheet 14, the contact surface between the connecting block 12, the push rod 7 and the elastic sheet 14 is a circular surface, so that the friction can be reduced when the elastic sheet 14 is pressed, and the push rod 7 can move smoothly. When the elastic sheet 14 is clamped into the groove 11, the contact surface between the push rod 7 and the elastic sheet 14 becomes a straight surface, so that the resistance can be increased, and the push rod 7 is not easily pulled.

[0027] Although the present disclosure has been shown and described with respect to certain exemplary embodiments thereof, it should be understood by those skilled in the art that various changes in form and detail can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the disclosure should not be limited to the above-described embodiments, but should be defined only by the appended claims and equivalents thereof.

Claims

1. A disposable sterile insulin syringe, comprising a syringe barrel (1), a connecting tube (101), a needle (2), a force receiving plate (4), a piston (6), a push rod (7) and a push plate (8), the left end of the syringe barrel (1) is connected with the connecting tube (101), the connecting tube (101) is connected with the needle (2), the right end of the syringe barrel (1) is connected with the force receiving plate (4), the inside of the syringe barrel (1) is slidably connected with the push rod (7), the left end of the push rod (7) is connected with the piston (6), and the right end is connected with the push plate (8), characterized in that: It also includes connecting block (12), limit block (13) and elastic sheet (14), the lower side of the right end of push rod (7) is provided with recess (11), recess (11) is placed with connecting block (12) inside, the lower left side of force plate (4) is connected with limit block (13) and elastic sheet (14).

2. A single-use, sterile insulin syringe as in Claim 1, wherein: It also includes push block (9) and sliding rod (10), the inside of push rod (7) is connected with sliding rod (10) slidingly, sliding rod (10) passes through piston (6), and the upper side of the right end is connected with push block (9), push block (9) slides on the right end of push rod (7).

3. A single-use, sterile insulin syringe as in Claim 2, wherein: It also includes scale line (102), the upper side of the outside of syringe barrel (1) is printed with scale line (102).

4. A single-use, sterile insulin syringe as in Claim 3, wherein: It also includes cap (3), the needle (2) is sleeved with cap (3) for protection and dustproof.

5. A single-use, sterile insulin syringe as defined in claim 4, wherein: It also includes elastic belt (5), the front and rear distribution elastic belt (5) is connected on force plate (4).

6. A single-use, sterile insulin syringe as in Claim 5, wherein: Multiple recesses (11) are arranged longitudinally on force plate (4).

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