Venous indwelling needle capable of preventing hematogenous infection

Abstract

The utility model relates to the technical field of medical instruments, and discloses a venous indwelling needle capable of preventing hematogenous infection, which comprises an indwelling needle body, protective assemblies are arranged on the surface and the side face of the indwelling needle body, and each protective assembly comprises a connecting ring arranged on the side face of the indwelling needle body, the venous indwelling needle comprises an indwelling needle body, a connecting ring is arranged in the indwelling needle body, a protective tube is fixed to the right end of the connecting ring, a clamping groove is formed in the surface of a shell of the indwelling needle body, a sliding groove is formed in the inner side of the connecting ring, a clamping block is slidably connected to the inner wall of the sliding groove, and a spring is fixed to the surface of the clamping block. The connecting ring and the protective tube are connected with the remaining needle body in an inserted mode, when the surface of the connecting ring abuts against the positioning plate, the connecting ring is rotated forwards, and the clamping block and the clamping groove are parallel in position, the spring enables the clamping block to enter the clamping groove, the remaining needle body, the connecting ring and the protective tube are stabilized, and infection caused by falling can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a venous indwelling needle for preventing blood-borne infection. Background Art

[0002] Intravenous injection is a medical method, that is, to inject liquid substances such as blood, liquid medicine, nutrient solution directly into the vein. Intravenous injection can be divided into short-term and continuous. Short-term intravenous injection is mostly injected directly into the vein with a syringe, which is the common "injection"; continuous intravenous injection is implemented by intravenous drip, commonly known as "drip". Choose a suitable vein, use your fingers to find the direction and depth of the vein, place a treatment towel or paper towel under the limb where the puncture site is located, tie a tourniquet about 6 cm above the puncture site (proximal end), disinfect the skin with 2% iodine tincture, and deiodinate with 70% alcohol after it dries. Ask the patient to make a fist to make the vein During filling and puncture, use the left thumb to tighten the skin at the lower end of the vein to fix it. Hold the syringe in the right hand with the needle bevel facing upward and the needle and skin at a 35-degree angle. Insert the needle into the subcutaneous tissue from above or to the side of the vein, and then sneakily insert it along the direction of the vein. When blood returns, it proves that the needle has entered the vein. You can then insert the needle a little further along the vein, loosen the tourniquet, ask the patient to relax his fist, fix the needle, and slowly inject the medicine. During the injection process, if there is local swelling and pain, indicating that the needle has slipped out of the vein, the needle should be pulled out and the site should be changed, and the injection should be repeated. After the injection, press the puncture point with a sterilized cotton swab, quickly pull out the needle, ask the patient to bend his elbow and press for a moment, and clean up the equipment.

[0003] Existing indwelling needles will use a protective cover. After use, the indwelling needle will be protected to prevent the residual blood from being exposed to the air. The blood may contain viruses and bacteria. Without the protective cover, interference may occur to the patient or medical staff through wounds, skin, mucous membranes, etc. However, most of the existing protective covers are directly connected to the outside of the indwelling needle, which is very easy to loosen, causing the protective cover to separate from the indwelling needle, thereby increasing the risk of infection. Utility Model Content

[0004] The utility model aims to provide a venous indwelling needle for preventing blood-borne infection, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a venous indwelling needle for preventing blood-borne infection, comprising an indwelling needle body, the surface and side of the indwelling needle body are provided with a protective component, and the protective component comprises:

[0006] A connecting ring, wherein the connecting ring is arranged on the side of the indwelling needle body, a protective tube is fixed to the right end of the connecting ring, a card slot is provided on the outer surface of the indwelling needle body, a slide groove is provided on the inner side of the connecting ring, a card block is slidably connected to the inner wall of the slide groove, a spring is fixed on the surface of the card block, and one end of the spring away from the card block is fixed on the inner wall of the slide groove, the connecting ring is plugged into the indwelling needle body, and the card slot and the card block are limited, so that the indwelling needle body, the connecting ring and the protective tube can be stabilized.

[0007] Preferably, a positioning plate is fixed to the outer shell surface of the indwelling needle body to position the connecting ring.

[0008] Preferably, a sealing gasket is fixed to the inner wall of the connecting ring to improve the sealing performance.

[0009] Preferably, the side of the clamping block away from the spring is configured as an inclined surface, so as to facilitate separation of the indwelling needle body from the connecting ring and the protective tube.

[0010] Preferably, the portion of the block exposed from the connecting ring is in the same shape as the slot, which facilitates positioning.

[0011] Preferably, the clamping blocks and the clamping slots are provided in six groups, and the six groups of clamping blocks and the clamping slots are arranged in a circular array with the center of the connecting ring and the indwelling needle body as the axis, so as to increase stability.

[0012] Compared with the prior art, the utility model provides a venous indwelling needle for preventing blood-borne infection, which has the following beneficial effects:

[0013] The intravenous indwelling needle for preventing blood-borne infection has a protective component that is provided to connect the connecting ring and the protective tube with the indwelling needle body. When the surface of the connecting ring contacts the positioning plate, the connecting ring is rotated forward, and when the positions of the clamping block and the clamping slot are parallel, the spring causes the clamping block to enter the clamping slot, thereby stabilizing the indwelling needle body, the connecting ring and the protective tube, and preventing them from falling off and causing infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 It is a partial front view structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the front view structure of the card block of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0018] In the figure: 1. Indwelling needle body; 2. Positioning plate; 3. Protection assembly; 30. Connecting ring; 31. Protection tube; 32. Slot; 33. Slide; 34. Block; 35. Spring; 4. Sealing pad. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: an intravenous indwelling needle for preventing blood-borne infection, including an indwelling needle body 1, the surface and side of the indwelling needle body 1 are provided with a protective component 3, and the protective component 3 includes: a connecting ring 30, a protective tube 31, a card slot 32, a slide groove 33, a card block 34, and a spring 35.

[0020] The connecting ring 30 is arranged on the side of the indwelling needle body 1, and a protective tube 31 is fixed to the right end of the connecting ring 30. A card slot 32 is provided on the outer shell surface of the indwelling needle body 1, and a slide groove 33 is provided on the inner side of the connecting ring 30. A card block 34 is slidably connected to the inner wall of the slide groove 33, and a spring 35 is fixed on the surface of the card block 34. The end of the spring 35 away from the card block 34 is fixed to the inner wall of the slide groove 33. The connecting ring 30 and the protective tube 31 are plugged into the indwelling needle body 1. When the surface of the card block 34 contacts the outer shell of the indwelling needle body 1, the card block 34 enters the slide groove 33. When the surface of the connecting ring 30 contacts the positioning plate 2, the connecting ring 30 is rotated forward. When the position of the card block 34 is parallel to the card slot 32, the spring 35 makes the card block 34 enter the card slot 32 to stabilize the indwelling needle body 1, the connecting ring 30 and the protective tube 31.

[0021] A positioning plate 2 is fixed to the outer surface of the indwelling needle body 1, which can position the connecting ring 30 to prevent the block 34 from being unable to enter the slot 32. A sealing gasket 4 is fixed to the inner wall of the connecting ring 30 to increase the sealing and avoid leakage. The side of the block 34 away from the spring 35 is set to an inclined surface, which can make the block 34 enter the slide groove 33 when it is resisted. The part of the block 34 exposed from the connecting ring 30 is consistent with the shape of the slot 32, which is convenient for the block 34 to enter and limit. There are six groups of blocks 34 and slots 32, and the six groups of blocks 34 and slots 32 are all arranged in a circular array with the center of the connecting ring 30 and the indwelling needle body 1 as the axis, thereby increasing the stability of the fixation.

[0022] When the used indwelling needle body 1 needs to be protected, the personnel can plug the connecting ring 30 and the protective tube 31 with the indwelling needle body 1. At this time, the indwelling needle body 1 enters the connecting ring 30 and the protective tube 31. When the surface of the block 34 hits the shell of the indwelling needle body 1, the block 34 will move along the shell of the indwelling needle body 1, so that the block 34 enters the slide groove 33. When the surface of the connecting ring 30 hits the positioning plate 2, the personnel can rotate the connecting ring 30 forward. When the block 34 is parallel to the position of the slot 32, Under the action of the spring 35, the block 34 will enter the slot 32, thereby stabilizing the indwelling needle body 1 and the connecting ring 30 and the protective tube 31 to prevent them from falling off and causing infection. At the same time, the sealing pad 4 increases the sealing performance of the indwelling needle body 1 and the connecting ring 30 and the protective tube 31. At the same time, when the indwelling needle body 1 is needed, the person can reverse the connecting ring 30 and the protective tube 31. At this time, the inclined surface of the block 34 will contact the inner wall of the slot 32, so that the block 34 enters the slide groove 33. At this time, the person can pull out the connecting ring 30 and the protective tube 31 for use.

[0023] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A venous indwelling needle for preventing blood-borne infection, comprising an indwelling needle body (1), characterized in that: The surface and side surfaces of the indwelling needle body (1) are provided with a protective component (3), and the protective component (3) comprises: A connecting ring (30) is arranged on the side of the indwelling needle body (1), a protective tube (31) is fixed to the right end of the connecting ring (30), a card slot (32) is provided on the outer surface of the indwelling needle body (1), a slide groove (33) is provided on the inner side of the connecting ring (30), a card block (34) is slidably connected to the inner wall of the slide groove (33), a spring (35) is fixed to the surface of the card block (34), and one end of the spring (35) away from the card block (34) is fixed to the inner wall of the slide groove (33).

2. The intravenous indwelling needle for preventing blood-borne infection according to claim 1, characterized in that: A positioning plate (2) is fixed to the outer shell surface of the indwelling needle body (1).

3. The intravenous indwelling needle for preventing blood-borne infection according to claim 1, characterized in that: A sealing gasket (4) is fixed to the inner wall of the connecting ring (30).

4. The intravenous indwelling needle for preventing blood-borne infection according to claim 1, characterized in that: The side of the clamping block (34) away from the spring (35) is configured in an inclined plane shape.

5. The intravenous indwelling needle for preventing blood-borne infection according to claim 1, characterized in that: The portion of the clamping block (34) exposed from the connecting ring (30) is consistent in shape with the clamping groove (32).

6. The intravenous indwelling needle for preventing blood-borne infection according to claim 1, characterized in that: The clamping blocks (34) and the clamping slots (32) are each provided in six groups, and the six groups of clamping blocks (34) and the clamping slots (32) are arranged in a circular array with the center of the connecting ring (30) and the indwelling needle body (1) as the axis.

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