Safe syringe capable of preventing acupuncture injury

Abstract

The utility model discloses a safety syringe capable of preventing acupuncture injury, which comprises a needle cylinder, a piston block is slidably connected in the needle cylinder, a push rod is fixedly connected on one side of the piston block, a needle head is arranged on one side of the needle cylinder, a fixing ring is fixedly connected on the outer side of the needle cylinder and located on one side of the needle head, and a protective sleeve is arranged on the outer side of the fixing ring. The outer side of the protective sleeve is fixedly connected with a fixed frame; the utility model relates to the technical field of injectors, according to the safety injector capable of preventing acupuncture injury, the function of shielding and protecting the needle head is achieved through the arrangement of the fixing ring, the positioning block, the protective sleeve, the positioning groove, the anti-skid protruding block and the protective ring, the effect of preventing acupuncture injury is achieved, the protective ring can shield the hand in the process of sleeving the protective sleeve, and the safety is improved. The needle injury is avoided; by arranging the fixing frame, the connecting block, the connecting rod, the reset spring, the sliding block, the limiting block and the limiting groove, the function of installing the protective sleeve on the fixing ring is achieved, operation is convenient, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to syringe technical field, concretely is a safe syringe of preventing needle stick injury. BACKGROUND

[0002] The syringe is a common medical appliance, it is composed of needle cylinder with small hole in front end and piston core rod matched with it, is used to inject a small amount of liquid or its into other methods inaccessible area or draws out from those places, liquid or gas is sucked from needle cylinder front end small hole when core rod pulls out, liquid or gas is extruded when core rod pushes in, and the process of extracting, injecting gas or liquid with needle head is called injection.

[0003] The utility model discloses a kind of syringes of preventing needle stick injury, cooperation is achieved by the needle head sheath slidingly connected with the periphery of injection needle, so that needle head sheath can protect injection needle before use, solve the problem that medical staff is easily injured when sheath needle, cause medical staff hand to exist infection risk.

[0004] The above-mentioned patent has realized the function of shielding needle head and preventing injury, but the above-mentioned patent has the following disadvantages when in use: the above-mentioned syringe of preventing needle stick injury increases the risk of medical staff being injured during the process of sheathing needle head sheath due to the small inner diameter of needle head sheath, is easy to cause harm to medical staff, and is inconvenient to use. Therefore, we propose a kind of safe syringe of preventing needle stick injury. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of safe syringe of preventing needle stick injury, solve the problem that the syringe of preventing needle stick injury increases the risk of medical staff being injured during the process of sheathing needle head sheath due to the small inner diameter of needle head sheath when in use, is easy to cause harm to medical staff.

[0006] To achieve the above object, the utility model is realized by the following technical scheme:

[0007] The utility model provides a safe syringe of preventing needle stick injury, including needle cylinder, the inside sliding joint of needle cylinder has piston block, one side of piston block is fixedly connected with push rod, one side of needle cylinder is equipped with needle, the outside of needle cylinder and located one side of needle is fixedly connected with fixed ring, the outside of fixed ring is equipped with protective sleeve, the outside of protective sleeve is fixedly connected with fixed frame, the inside sliding joint of fixed frame has limit stop, the inside of fixed ring is equipped with limit groove and is used for limit stop cooperation, the outside of protective sleeve is fixedly connected with protection ring, through the inside limit of limit stop moving into limit groove can position the position of protective sleeve, completes the installation of protective sleeve, can shield protection to needle through protective sleeve, prevents the hand from being stabbed, through the setting of protection ring can protect the hand of medical staff in the process of setting, prevents being stabbed, and the protection effect is better.

[0008] Preferably, the outer side of the protective sleeve is equidistantly fixedly connected with an anti-skid protrusion, which can prevent slipping and make gripping more stable.

[0009] Preferably, the outer side of the fixed ring is fixedly connected with a positioning block, and the inside of the protective sleeve is provided with a positioning groove matched with the positioning block, so that the protective sleeve and the fixed ring can be positioned through the positioning block and the positioning groove, facilitating the installation of the protective sleeve.

[0010] Preferably, the inside of the fixed frame is slidingly connected with a sliding block, and the limit stop is fixedly connected with the sliding block, so that the limit stop is moved by the sliding block, thereby assisting the installation of the protective sleeve.

[0011] Preferably, the inside of the fixed frame is slidingly connected with a connecting rod, the sliding block is fixedly connected with the connecting rod, and the connecting rod is fixedly connected with a connecting block at an end away from the sliding block, so that the connecting rod is moved by the connecting block, and the sliding block is moved by the connecting rod, thereby facilitating the installation of the protective sleeve.

[0012] Preferably, a reset spring is sleeved on the outer side of the connecting rod and located at one side of the sliding block, so that the sliding block is moved and reset by the reset spring, thereby facilitating the disassembly and assembly of the protective sleeve.

[0013] The utility model provides a safe syringe of preventing needle stick injury.

[0014] 1、The safe syringe of preventing needle stick injury realizes the function of shielding and protecting the needle through the setting of the fixed ring, the positioning block, the protective sleeve, the positioning groove, the anti-skid protrusion and the protection ring, achieves the effect of preventing stab, and the protection ring can block the hand during the setting of the protective sleeve, avoiding being stabbed.

[0015] 2. The safety syringe against needle stick injury has the function of installing the protective sleeve on the fixing ring through the fixing frame, the connecting block, the connecting rod, the reset spring, the sliding block, the limiting block and the limiting groove, and is convenient to operate and use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the utility model;

[0017] Figure 2 is a structural schematic view of the needle cylinder of the utility model;

[0018] Figure 3 is a structural schematic view of the internal structure of the needle cylinder of the utility model;

[0019] Figure 4 is a structural schematic view of the protective sleeve of the utility model;

[0020] Figure 5 is a structural schematic view of the fixing frame of the utility model;

[0021] Figure 6 is a structural schematic view of the fixing ring of the utility model.

[0022] In the drawing: 1, needle cylinder; 2, push rod; 3, protective sleeve; 4, protective ring; 5, needle; 6, fixing ring; 7, piston block; 8, anti-skid boss; 9, fixing frame; 10, limiting block; 11, positioning groove; 12, sliding block; 13, connecting rod; 14, reset spring; 15, connecting block; 16, positioning block; 17, limiting groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than 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 protection scope of the utility model.

[0024] Please refer to Figures 1 to 6 The utility model provides a technical scheme:

[0025] The utility model provides a safe syringe of preventing needle stick injury, including needle cylinder 1, the inside sliding connection of needle cylinder 1 has piston block 7, one side fixed connection of piston block 7 has push rod 2, one side of needle cylinder 1 is equipped with needle 5, the outside of needle cylinder 1 and located one side fixed connection of needle 5 has fixed ring 6, the outside of fixed ring 6 is equipped with protective sleeve 3, the outside fixed connection of protective sleeve 3 has fixed frame 9, the inside sliding connection of fixed frame 9 has limit block 10, the inside of fixed ring 6 is equipped with with limit block 10 cooperation uses limit slot 17, the outside fixed connection of protective sleeve 3 has protective ring 4, through the inside of limit block 10 moving into limit slot 17 can position the position of protective sleeve 3 to a certain extent, completes the installation of protective sleeve 3, through protective sleeve 3 can shield protective needle 5, prevent hand from being stabbed, through the setting of protective ring 4 can protective sleeve process to the hand of medical staff, prevent being stabbed, and the protection effect is better.

[0026] Further, the outside of protective sleeve 3 equidistant fixed connection has antiskid boss 8, through the setting of antiskid boss 8 can play the effect of antiskid, and it is more stable when gripping.

[0027] Further, the outside of fixed ring 6 is fixedly connected with a positioning block 16, and the inside of the protective sleeve 3 is provided with a positioning groove 11 matched with the positioning block 16, and the positioning block 16 and the positioning groove 11 can be positioned between the protective sleeve 3 and the fixed ring 6, facilitating the installation of the protective sleeve 3.

[0028] Further, the inside of the fixed frame 9 is slidably connected with a sliding block 12, and the limit block 10 is fixedly connected with the sliding block 12, and the sliding block 12 drives the limit block 10 to move, thereby assisting the installation of the protective sleeve 3.

[0029] Further, the inside of the fixed frame 9 is slidably connected with a connecting rod 13, and the sliding block 12 is fixedly connected with the connecting rod 13, and the connecting rod 13 is fixedly connected with a connecting block 15 at an end away from the sliding block 12, and the connecting block 15 drives the connecting rod 13 to move, and the connecting rod 13 drives the sliding block 12 to move, thereby facilitating the installation of the protective sleeve 3.

[0030] Further, the outside of the connecting rod 13 and located at one side of the sliding block 12 is sleeved with a reset spring 14, and the reset spring 14 drives the sliding block 12 to move and reset, thereby facilitating the disassembly and assembly of the protective sleeve 3.

[0031] When in use, the needle 5 needs to be shielded, the sleeve 3 is held by hand, the anti-skid convex block 8 can play the effect of anti-skid, the holding is more stable, the sleeve 3 is sleeved on the fixing ring 6, the protection ring 4 can protect the hands of medical staff during the sleeving process, so as to prevent being pricked, the positioning block 10 and the positioning groove 11 can be positioned between the sleeve 3 and the fixing ring 6, during the sliding process of the sleeve 3 along the fixing ring 6, the fixing ring 6 will extrude and drive the limiting block 10 to slide, the limiting block 10 drives the sliding block 12 to move, and the reset spring 14 is compressed, when the sleeve 3 is completely sleeved, the reset spring 14 drives the sliding block 12 to move and reset due to the elastic force, the sliding block 12 drives the limiting block 10 to move into the inside of the limiting groove 17, so as to limit the position of the sleeve 3, the installation of the sleeve 3 is completed, the sleeve 3 can shield the needle 5, so as to prevent the hands from being pricked, when the sleeve 3 needs to be opened, the connecting block 15 is pulled, the connecting block 15 drives the sliding block 12 to move through the connecting rod 13, the sliding block 12 drives the limiting block 10 to move and separate from the limiting groove 17, so that the sleeve 3 can be taken off for injection operation, and the use is convenient.

[0032] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0033] It should be noted that, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation. By the sentence "including a limited element, it does not exclude the existence of another same element in the process, method, article or equipment including the element".

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safety syringe against needle stick injury, comprising a needle cylinder (1), characterized in that: The inside of the needle cylinder (1) is slidably connected with a piston block (7), one side of the piston block (7) is fixedly connected with a push rod (2), one side of the needle cylinder (1) is provided with a needle (5), the outside of the needle cylinder (1) and one side of the needle (5) is fixedly connected with a fixed ring (6), the outside of the fixed ring (6) is provided with a protective sleeve (3), the outside of the protective sleeve (3) is fixedly connected with a fixed frame (9), the inside of the fixed frame (9) is slidably connected with a limiting block (10), the inside of the fixed ring (6) is provided with a limiting groove (17) matched with the limiting block (10), the outside of the protective sleeve (3) is fixedly connected with a protective ring (4).

2. A safety syringe to prevent needle stick injuries as defined in claim 1, wherein: The outside of the protective sleeve (3) is equidistantly fixedly connected with an anti-skid protruding block (8).

3. A safety syringe to prevent needle stick injuries as defined in claim 1, wherein: The outside of the fixed ring (6) is fixedly connected with a positioning block (16), the inside of the protective sleeve (3) is provided with a positioning groove (11) matched with the positioning block (16).

4. A safety syringe which prevents needle stick injuries according to claim 1, wherein: The inside of the fixed frame (9) is slidably connected with a sliding block (12), the limiting block (10) is fixedly connected with the sliding block (12).

5. A safety syringe which prevents needle stick injuries according to claim 4, characterized in that: The inside of the fixed frame (9) is slidably connected with a connecting rod (13), the sliding block (12) is fixedly connected with the connecting rod (13), one end of the connecting rod (13) away from the sliding block (12) is fixedly connected with a connecting block (15).

6. A safety syringe which prevents needle stick injuries according to claim 5, characterized in that: The outside of the connecting rod (13) and one side of the sliding block (12) is sleeved with a reset spring (14).

Images