Infusion apparatus capable of preventing needle stick injury

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a needle-stick-injury-preventing infusion apparatus which comprises an infusion apparatus body, a needle-stick-injury-preventing assembly is arranged outside the infusion apparatus body, an automatic springback assembly is installed on the side of the needle-stick-injury-preventing assembly, and a fixed switch assembly is arranged on the outer wall of the automatic springback assembly. The anti-pricking assembly comprises a needle head protection plate, one side of the needle head protection plate is fixedly connected with a stirring protruding block, the other side of the needle head protection plate is movably connected with a protection plate rotating shaft, one end of the protection plate rotating shaft is provided with a rotating shaft connecting block, and the side of the rotating shaft connecting block is fixedly connected with a sliding shell. A protection plate clamping groove is formed in the sliding shell, and the needle head protection plate and a rotating shaft connecting block form a rotating structure through a protection plate rotating shaft; according to the infusion set, the needle head of the infusion set can be protected conveniently, and the situation of needling injury can be prevented conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an infusion set for preventing needle punctures. Background Art

[0002] Disposable ordinary infusion sets are widely used for intravenous infusion in my country. Due to their low price, simple operation and the ability to prevent medical cross-infection, they have completely replaced the rubber infusion tubes of the past in clinical practice. Disposable infusion sets are a common Class III medical device, mainly used for intravenous infusion in hospitals.

[0003] In application number CN201821001502.6, the utility model relates to the field of medical device technology, and in particular to an improved needle-stick-proof infusion needle, comprising a fixed plate and a movable plate, a needle tube is arranged between the fixed plate and the movable plate, a through hole is opened in the middle of the surface of the fixed plate, a liquid inlet pipe is connected to the side of the fixed plate away from the movable plate, the liquid inlet pipe passes through the through hole and is connected to the needle tube, and a hose is connected to the end of the liquid inlet pipe away from the fixed plate. A spring is wound around the surface of the needle tube between the fixed plate and the movable plate, the movable plate is an annular structure, and the end of the needle tube away from the fixed plate passes through the movable plate and is provided with a needle, and a protective tube is provided on the surface of the needle tube. The utility model has a simple structure and is easy to use. The fixed plate and the movable plate can ensure that the needle will not be exposed when the needle is pulled out, thereby protecting the needle and avoiding accidental injury caused by the needle. The sponge pad and the protective tube can clean the blood on the surface of the needle tube and the needle when the needle is pulled out, and prevent blood from dripping.

[0004] After use, the existing anti-needlestick infusion set uses a spring to push the protective shell to wrap the needle to achieve the effect of preventing needlestick injuries. However, in actual use, the protective shell wrapping the needle has no fixed components. If the needle contacts the human body at this time, the protective shell will squeeze the spring under the action of force, causing the needle to contact the human body, and there is still a risk of puncture.

[0005] Therefore, in view of the above problems, an infusion set for preventing needle stick injury is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the problem of the risk of puncture in the infusion set before and after use and the problem of the unstable needle protection are solved.

[0007] The technical solution adopted by the utility model to solve the technical problem is as follows: the utility model discloses an anti-needle-stick infusion set, comprising an infusion set body, an anti-needle-stick assembly is arranged outside the infusion set body, an automatic rebound assembly is installed on the side of the anti-needle-stick assembly, and a fixed switch assembly is arranged on the outer wall of the automatic rebound assembly; the anti-needle-stick assembly comprises a needle protection plate, one side of the needle protection plate is fixedly connected with a toggle protrusion, and the other side of the needle protection plate is movably connected with a protection plate rotating shaft, and one end of the protection plate rotating shaft is provided with a rotating shaft connecting block, and the side of the rotating shaft connecting block is fixedly connected with a sliding housing , and a protective plate slot is provided inside the sliding shell; the automatic rebound component includes a fixed plate, a side of the fixed plate is elastically connected with a rebound spring, and the other side of the rebound spring is fixedly connected with a movable shell; the fixed switch component includes a switch hook, a side of the switch hook is engaged and connected with a switch plate body, and the outer wall of the switch plate body is tightly fitted with a switch control plate, and a side of the switch control plate is fixedly connected with a switch slider, the other side of the switch plate body is movably connected with a switch plate shaft, and the back of the switch plate body is elastically connected with a switch plate spring, and one end of the switch plate spring is fixedly connected with the switch shell.

[0008] Preferably, the needle protection plate forms a rotating structure through the protection plate shaft and the shaft connecting block, and the needle protection plate and the protection plate slot form a snap-fit ​​structure, and the needle protection plate is made of rubber.

[0009] Preferably, the movable shell forms an elastic structure with the fixed plate through a rebound spring, and the movable shell and the infusion device body form a sliding structure.

[0010] Preferably, the switch plate body forms a rotating structure through the switch control plate, the switch slider and the switch plate rotating shaft, and the switch plate body forms an elastic structure through the switch plate spring and the switch housing.

[0011] Preferably, the switch hook and the switch plate body form a snap-fit ​​structure, and the switch hook and the switch housing form a sliding structure through the movable housing.

[0012] The utility model is beneficial in that:

[0013] 1. The needle protection plate forms a rotating structure through the protection plate rotating shaft and the rotating shaft connecting block, and the needle protection plate and the protection plate slot form a clamping structure, and the needle protection plate is made of rubber material, which is convenient for providing a needle protection plate for the infusion needle, effectively preventing the needle from being exposed and causing stabbing. The movable shell forms an elastic structure with the fixed plate through the rebound spring, and the movable shell and the infusion body form a sliding structure, which is convenient for automatically controlling the rebound of the movable shell through the elasticity of the rebound spring, effectively preventing the needle from being exposed;

[0014] 2. The switch plate body forms a rotating structure through the switch control plate, the switch slider and the switch plate shaft, and the switch plate body forms an elastic structure through the switch plate spring and the switch shell, the switch hook and the switch plate body form a snap-fit ​​structure, and the switch hook forms a sliding structure with the switch shell through the movable shell, which is convenient for fixing the position of the movable shell and effectively improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0017] Figure 2 It is an enlarged structural diagram of the overall protection part of the utility model;

[0018] Figure 3 It is an enlarged structural schematic diagram of the needle stick protection component of the utility model;

[0019] Figure 4 It is an enlarged structural schematic diagram of the automatic rebound component of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the fixed switch assembly of the utility model.

[0021] In the figure: 1. Infusion set body; 2. Anti-needlestick component; 201. Needle protection plate; 202. Toggle bump; 203. Protection plate shaft; 204. Shaft connecting block; 205. Sliding shell; 206. Protection plate slot; 3. Automatic rebound component; 301. Fixed plate; 302. Rebound spring; 303. Movable shell; 4. Fixed switch component; 401. Switch hook; 402. Switch plate body; 403. Switch control board; 404. Switch slider; 405. Switch plate shaft; 406. Switch plate spring; 407. Switch shell. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1 , Figure 2 As shown, an anti-needlestick infusion set includes an infusion set body 1, an anti-needlestick component 2 is arranged outside the infusion set body 1, an automatic rebound component 3 is installed on the side of the anti-needlestick component 2, and a fixed switch component 4 is arranged on the outer wall of the automatic rebound component 3.

[0025] See also Figure 3 As shown, an infusion set for preventing needle stick injuries, an anti-needle stick injury component 2, includes a needle protection plate 201, one side of the needle protection plate 201 is fixedly connected with a toggle protrusion 202, and the other side of the needle protection plate 201 is movably connected with a protection plate rotating shaft 203, and one end of the protection plate rotating shaft 203 is provided with a rotating shaft connecting block 204, the side of the rotating shaft connecting block 204 is fixedly connected with a sliding shell 205, and the interior of the sliding shell 205 is provided with a protection plate slot 206, the toggle protrusion 202 is pushed, so that the needle protection plate 201 rotates around the protection plate rotating shaft 203 until the needle protection plate 201 is stuck in the protection plate slot 206, the needle protection plate 201 is made of rubber material, which can effectively prevent the infusion set needle from being exposed and prevent stabbing, and it is convenient to provide the needle protection plate 201 for the infusion set needle, effectively preventing the needle from being exposed and causing stabbing.

[0026] See also Figure 4 As shown, an infusion set for preventing needle stick injuries, an automatic rebound component 3, includes a fixed plate 301, a side of the fixed plate 301 is elastically connected to a rebound spring 302, and the other side of the rebound spring 302 is fixedly connected to a movable shell 303, under the elastic action of the rebound spring 302, the movable shell 303 is pushed to slide on the outer wall of the infusion set body 1 until the needle tip of the infusion set body 1 is located inside the sliding shell 205, so that the rebound of the movable shell 303 is automatically controlled by the elasticity of the rebound spring 302, and the needle tip is effectively prevented from being exposed.

[0027] See also Figure 5As shown, an infusion set for preventing needle puncture, a fixed switch assembly 4, including a switch hook 401, the side of the switch hook 401 is engaged and connected with a switch plate body 402, and the outer wall of the switch plate body 402 is tightly fitted with a switch control board 403, and the side of the switch control board 403 is fixedly connected with a switch slider 404, the other side of the switch plate body 402 is movably connected with a switch plate rotating shaft 405, and the back of the switch plate body 402 is elastically connected with a switch plate spring 406, and one end of the switch plate spring 406 is fixedly connected with a switch housing 407, and the switch slider 404 is horizontally slid, and the switch slider 404 drives the switch control board 403 to move horizontally, and the side of the switch plate body 402 is inclined. At this time, the switch plate body 402 rotates around the switch plate rotating shaft 405, and at the same time, the switch plate spring 406 is squeezed and contracted, and the switch hook 401 is separated from the switch plate body 402, so as to fix the position of the movable housing 303 and effectively improve the overall stability of the device.

[0028] Working principle: First, slide the switch slider 404 horizontally, and the switch slider 404 drives the switch control board 403 to move horizontally. The side of the switch board body 402 is inclined. At this time, the switch board body 402 rotates around the switch board shaft 405. At the same time, the switch board spring 406 is squeezed and contracted. When the switch hook 401 is separated from the switch board body 402, under the elastic action of the rebound spring 302, the movable shell 303 is pushed to slide on the outer wall of the infusion device body 1 until the needle tip of the infusion device body 1 is located inside the sliding shell 205. Then, push the toggle bump 202 to make the needle guard plate 201 rotate around the guard plate shaft 203 until the needle guard plate 201 is stuck in the guard plate slot 206. The needle guard plate 201 is made of rubber material, which can effectively prevent the infusion device needle from being exposed and prevent puncture.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An infusion set for preventing needle stick injuries, characterized in that: The invention comprises an infusion device body (1), wherein an anti-needle-stick injury component (2) is arranged outside the infusion device body (1), an automatic rebound component (3) is installed on the side of the anti-needle-stick injury component (2), and a fixed switch component (4) is arranged on the outer wall of the automatic rebound component (3); The needle puncture prevention component (2) comprises a needle protection plate (201), one side of the needle protection plate (201) is fixedly connected to a toggle protrusion (202), and the other side of the needle protection plate (201) is movably connected to a protection plate rotating shaft (203), and one end of the protection plate rotating shaft (203) is provided with a rotating shaft connecting block (204), the side of the rotating shaft connecting block (204) is fixedly connected to a sliding shell (205), and the interior of the sliding shell (205) is provided with a protection plate slot (206); The automatic rebound component (3) comprises a fixed plate (301), a side of the fixed plate (301) being elastically connected to a rebound spring (302), and the other side of the rebound spring (302) being fixedly connected to a movable housing (303); The fixed switch assembly (4) comprises a switch hook (401), the side of the switch hook (401) is snap-connected with a switch board body (402), the outer wall of the switch board body (402) is tightly fitted with a switch control board (403), and the side of the switch control board (403) is fixedly connected with a switch slider (404), the other side of the switch board body (402) is movably connected with a switch board shaft (405), the back of the switch board body (402) is elastically connected with a switch board spring (406), and one end of the switch board spring (406) is fixedly connected with a switch housing (407).

2. The needle-stick-proof infusion set according to claim 1, characterized in that: The needle protection plate (201) forms a rotating structure through the protection plate rotating shaft (203) and the rotating shaft connecting block (204), and the needle protection plate (201) and the protection plate clamping groove (206) form a clamping structure, and the needle protection plate (201) is made of rubber.

3. The needle-stick-proof infusion set according to claim 1, characterized in that: The movable shell (303) forms an elastic structure with the rebound spring (302) and the fixed plate (301), and the movable shell (303) and the infusion device body (1) form a sliding structure.

4. The needle-stick-proof infusion set according to claim 1, characterized in that: The switch plate body (402) forms a rotating structure through the switch control plate (403), the switch slider (404) and the switch plate rotating shaft (405), and the switch plate body (402) forms an elastic structure through the switch plate spring (406) and the switch housing (407).

5. The needle-stick-proof infusion set according to claim 1, characterized in that: The switch hook (401) and the switch plate body (402) form a snap-fit ​​structure, and the switch hook (401) and the switch housing (407) form a sliding structure through the movable housing (303).

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