Safety injection device with protection structure

Abstract

The utility model discloses a safety injection device with a protection structure, which relates to the technical field of injectors and comprises an injector barrel and a piston shaft, the piston shaft is inserted into the injector barrel, a piston is arranged at the end of the piston shaft, a T-shaped sliding groove is arranged on the outer wall of the injector barrel, and a shifting piece capable of sliding up and down is arranged in the T-shaped sliding groove. A user can slide the shifting piece up and down according to actual conditions to drive the supporting ring to move, so that the supporting ring is adjusted to a proper position, control over different injection depths is achieved, the device is particularly suitable for injection scenes such as psychiatric patients where shaking and non-matching conditions possibly occur, and the phenomenon that a needle is inserted too deep can be effectively avoided; the effect of accurately controlling the injection depth is achieved, a locking screw with a screwing handle is screwed in the shifting piece, when the shifting piece slides to the expected position, the locking screw can be rotated clockwise to abut against the interior of the T-shaped sliding groove, and then the shifting piece is locked at the corresponding sliding position and the position of the stable supporting ring.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of syringe belongs to a kind of safety injection device with protection structure. BACKGROUND

[0002] In many fields involving liquid injection operation, syringe as a commonly used instrument plays a vital role, the traditional syringe is mainly composed of syringe barrel, piston shaft and needle, the injection or extraction operation of liquid medicine is realized by the piston shaft to push piston to move in the syringe barrel, however, the needle of traditional syringe is not provided with injection depth limiting device, so when some patients in psychiatry are injected, it is easy to cause secondary injury due to injection too deep caused by the shaking of patient's uncooperative situation, a kind of safety injection device with protection structure is designed. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of safety injection device with protection structure, to solve the problem of the needle of traditional syringe not being provided with injection depth limiting device in the above background art, so when some patients in psychiatry are injected, it is easy to cause secondary injury due to injection too deep caused by the shaking of patient's uncooperative situation.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of safety injection device with protection structure, comprising:

[0005] Syringe barrel;

[0006] Piston shaft, piston shaft is inserted in the inside of syringe barrel, and the end of piston shaft is provided with piston, and the piston can move in the inside of syringe barrel;

[0007] Needle, needle is inserted in the upper end position of syringe barrel.

[0008] Preferably, the outer wall of the syringe barrel is fixedly provided with T-shaped sliding groove, the inside of the T-shaped sliding groove is slidably provided with a tab, and the tab can slide up and down in the inside of the T-shaped sliding groove.

[0009] Preferably, the upper end of the tab is connected with a support ring through a pull rod, and the up-and-down sliding of the tab can drive the support ring to slide up and down through the pull rod.

[0010] Preferably, a locking screw is screwed in the inside of the tab, and the side of the locking screw is fixedly provided with a screw handle.

[0011] Preferably, a needle cap for protection is sleeved on the protective needle.

[0012] Compared with the prior art, the safe injection device with the protection structure has the following beneficial effects:

[0013] 1、The utility model discloses a support ring is moved to the suitable position through the upper and lower slide of the user according to actual situation to drive the support ring, thereby adjusting the control of different injection depth, especially applicable to the injection scene of mental hospital patient etc.

[0014] 2、The utility model discloses the locking screw with the screw handle is screwed in the inside of the push piece, when the push piece slides to the desired position, can pass through the clockwise rotation locking screw, make its abutment T type sliding groove inside, and then lock the push piece in the corresponding sliding position, the position of stable support ring, and the setting of screw handle makes locking operation more convenient, the support ring position of quick fixed adjustment of convenient user, guarantee the stability of support ring function in the injection process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the safe injection device with the protection structure of the utility model.

[0016] Figure 2 It is the needle cap structure schematic diagram of the safe injection device with the protection structure of the utility model.

[0017] Figure 3 It is the push piece amplification structure schematic diagram of the utility model.

[0018] Figure 4 It is the internal section structure schematic diagram of the safe injection device with the protection structure of the utility model.

[0019] In the drawing: 1, syringe barrel;2, piston shaft;3, piston;4, needle cap;5, T type sliding groove;6, needle;7, support ring;8, pull rod;9, push piece;10, locking screw. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] The utility model provides a kind of Figures 1-4The injection device with protection structure comprises a syringe barrel 1 and a piston shaft 2, the piston shaft 2 is inserted into the inside of the syringe barrel 1, and the end of the piston shaft 2 is provided with a piston 3, the piston 3 can move in the inside of the syringe barrel 1, a needle 6 is inserted into the upper end of the syringe barrel 1, and a needle cap 4 is sleeved on the needle 6 for protection.

[0022] In this embodiment, the needle 6 is inserted into the liquid medicine, then the piston shaft 2 is pulled to move the piston 3 in the inside of the syringe barrel 1, so that the negative pressure is formed in the inside of the syringe barrel 1, the syringe barrel 1 with the negative pressure can extract the liquid medicine into the inside, after the extraction of the liquid medicine is completed, the needle 6 is inserted into the target, then the piston shaft 2 is pushed by hand to make the piston 3 extrude the liquid medicine and inject the liquid medicine into the inside of the target, after the injection is completed, the needle 6 is inserted into the sharp box, and the needle 6 is clamped in the inside of the sharp box.

[0023] As shown in Figure 1 , 3 The outer wall of the syringe barrel 1 is fixedly provided with a T-shaped sliding groove 5, the inside of the T-shaped sliding groove 5 is slidably provided with a push piece 9, the push piece 9 can slide up and down in the inside of the T-shaped sliding groove 5, the upper end of the push piece 9 is connected with a supporting ring 7 through a pull rod 8, and the up-and-down sliding of the push piece 9 can drive the supporting ring 7 to slide up and down through the pull rod 8.

[0024] When the injection device is used for injection, the user can slide the push piece 9 up and down, the sliding push piece 9 drives the supporting ring 7 to slide up and down through the pull rod 8, the supporting ring 7 is adjusted to the appropriate position, and then the injection can be performed through the needle 6, in the process of injection, the supporting ring 7 can play a supporting role, so that when the psychiatric patient shakes or does not cooperate, the needle 6 can be prevented from being inserted too deep through the support of the supporting ring 7.

[0025] Through the design, different injection depths can be controlled, so that the injection depth can be more accurately controlled, and in the process of injection, the supporting ring 7 can also play a supporting role, so that the injection is more stable.

[0026] Preferably, a locking screw 10 is screwed in the inside of the push piece 9, the side of the locking screw 10 is fixedly provided with a screw handle, so that when the push piece 9 is adjusted to the appropriate position, the locking screw 10 can be rotated clockwise, so that the locking screw 10 can abut against the inside of the T-shaped sliding groove 5, so that the push piece 9 is locked to the sliding position, so that the supporting ring 7 can be stably adjusted to the adjusted position, and the locking of the locking screw 10 is more convenient through the screw handle.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A safety injection device with a protective structure, characterized in that, include: Syringe barrel (1); Piston shaft (2) is inserted into the inside of syringe barrel (1), and piston (3) is provided at the end of piston shaft (2), and piston (3) can move back and forth inside syringe barrel (1); The needle (6) is inserted into the upper end of the syringe barrel (1); The outer wall of the syringe barrel (1) is fixedly provided with a T-shaped groove (5), and a paddle (9) is slidably provided inside the T-shaped groove (5), and the paddle (9) can slide up and down inside the T-shaped groove (5); The upper end of the paddle (9) is connected to a support ring (7) via a pull rod (8), and the up and down sliding of the paddle (9) can drive the support ring (7) to slide up and down via the pull rod (8).

2. The safety injection device with a protective structure according to claim 1, characterized in that: The inside of the lever (9) is screwed with a locking screw (10), and a screwing handle is fixedly provided on the side of the locking screw (10).

3. A safety injection device with a protective structure according to claim 1, characterized in that: It also includes a needle cap (4), which is fitted onto the protective needle (6) for protection.

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