Retractable disposable intravenous fluid needle

Abstract

The utility model discloses a retractable disposable intravenous fluid needle which comprises a needle tube, an inner cavity is formed in the needle tube, a limiting sleeve is fixedly connected in the inner cavity, a spring is fixedly connected below the limiting sleeve, a retractable sliding groove is formed in the outer side of the needle tube, a recycling clamping groove is formed in the side face of the retractable sliding groove, and a retractable handle is connected to one end of the retractable sliding groove in a sliding mode. The retraction handle is slightly pulled to enable the sliding block to slide towards the clamping groove along the retraction sliding groove, the spring is gradually compressed along with rising of the retraction handle, when the sliding block reaches the position of the retraction clamping groove, the retraction handle is rotated to enable the sliding block to slide into the clamping groove, and the needle head is locked in the retraction state. At the moment, the needle head completely retracts into the needle tube and is surrounded by a safety structure of the limiting sleeve and the spring, so that automatic retraction and safe locking of the needle head are realized, and the problem that the sharp needle head is continuously exposed outside after use due to the fact that an existing intravenous fluid needle cannot realize a retraction function is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely is a retractable disposable intravenous fluid needle. BACKGROUND

[0002] The existing intravenous fluid needle cannot realize the retraction function, so that the sharp needle head is continuously exposed after use, which easily causes the risk of puncture to the medical staff or other handling personnel, the exposure state without protection not only increases the probability of occupational exposure injury, but also can spread blood diseases, which seriously threatens the health and safety of medical staff and patients. SUMMARY

[0003] The utility model discloses a retractable disposable intravenous fluid needle, which can solve the problem that the existing intravenous fluid needle cannot realize the retraction function and the sharp needle head is continuously exposed after use.

[0004] To achieve the above object, the utility model provides the following technical scheme: a retractable disposable intravenous fluid needle, comprising: a needle tube, an inner cavity is arranged in the needle tube, a limiting sleeve is fixedly connected in the inner cavity, a spring is fixedly connected below the limiting sleeve, a retraction sliding groove is arranged on the outer side of the needle tube, a recovery clamping groove is arranged on the side of the retraction sliding groove, a retraction handle is slidably connected to one end of the retraction sliding groove, a sliding block is fixedly connected to the inner side of the retraction handle, and a rubber sleeve is fixedly connected to the outer side of the retraction handle.

[0005] As a further scheme of the utility model: a threaded groove is arranged below the retraction handle, a needle head is screwed below the threaded groove, a threaded rod is fixedly connected above the needle head, and a needle head sleeve is arranged on the outer side of the needle head.

[0006] As a further scheme of the utility model: a handle is fixedly connected to the side of the needle tube, and an infusion tube is fixedly connected above the retraction handle.

[0007] As a further scheme of the utility model: the number of the retraction sliding groove, the recovery clamping groove and the sliding block is two groups, the sliding block is matched with the retraction sliding groove and the recovery clamping groove, and the retraction handle is arranged below the spring.

[0008] As a further scheme of the utility model: the threaded groove is matched with the threaded rod.

[0009] As a further scheme of the utility model: the number of the handle is two groups, which are symmetrically arranged on the two sides of the needle tube, and the infusion tube is connected with the needle head.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The utility model discloses a retractable handle is pulled gently, makes the sliding block slide along the retracting slide groove to the direction of the clamping groove, with the rising of retractable handle, spring is compressed gradually, when sliding block reaches the position of recycling clamping groove, rotates retractable handle, makes sliding block slide into the clamping groove, and lets needle lock in the recycling state, at this moment, needle has been completely retracted to needle tube inside, is surrounded by the safety structure of limiting sleeve and spring, thereby realizes the automatic retraction and safety locking of needle, improves the problem that the existing intravenous liquid needle cannot realize the retraction function, leads to the sharp needle to expose outside continuously after use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the utility model discloses a retractable disposable intravenous liquid needle;

[0013] Figure 2 It is the split structure schematic diagram in the utility model discloses a retractable disposable intravenous liquid needle;

[0014] Figure 3 It is the side section structure schematic diagram in the utility model discloses a retractable disposable intravenous liquid needle;

[0015] Figure 4 It is the structure schematic diagram of retractable handle in the utility model discloses a retractable disposable intravenous liquid needle;

[0016] Figure 5 It is the structure schematic diagram of needle tube in the utility model discloses a retractable disposable intravenous liquid needle.

[0017] In the drawing: 1, needle tube;2, inner chamber;3, limiting sleeve;4, spring;5, retracting slide groove;6, recycling clamping groove;7, retractable handle;8, sliding block;9, rubber sleeve;10, screw groove;11, needle;12, threaded rod;13, needle cover;14, handle;15, infusion tube. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, 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 the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0019] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0020] Referring to Figures 1 to 5 In the utility model embodiment, a retractable disposable intravenous liquid needle, comprising: needle tube 1, the inside of needle tube 1 is provided with inner cavity 2, the inside of inner cavity 2 is fixedly connected with limiting sleeve 3, spring 4 is fixedly connected below limiting sleeve 3, retracting sliding slot 5 is provided on the outside of needle tube 1, recovery slot 6 is provided on the side of retracting sliding slot 5, retracting handle 7 is slidably connected at one end of retracting sliding slot 5, sliding block 8 is fixedly connected to the inside of retracting handle 7, rubber sleeve 9 is fixedly connected to the outside of retracting handle 7, the number of retracting sliding slot 5, recovery slot 6 and sliding block 8 is provided with two groups, and sliding block 8 is matched with retracting sliding slot 5 and recovery slot 6, retracting handle 7 is arranged below spring 4, after infusion, medical staff pulls retracting handle 7 gently, makes sliding block 8 slide along the direction of slot 6 of retracting sliding slot 5, with the rising of retracting handle 7, spring 4 is gradually compressed, when sliding block 8 reaches the position of recovery slot 6, rotates retracting handle 7, makes sliding block 8 slide into slot 6, makes needle head 11 lock in recovery state, at this time, needle head 11 has been completely retracted to the inside of needle tube 1, is surrounded by the safety structure of limiting sleeve 3 and spring 4, thereby realizing the automatic retraction and safety locking of needle head, since needle head has been safely retracted and locked, medical staff can safely handle the used intravenous liquid needle, without worrying about the risk of injury caused by exposed needle head, the whole retracting process is simple and fast, greatly improves the safety and efficiency of medical operation.

[0021] Referring to Figure 2, retractable handle 7 below is provided with a threaded groove 10, threaded groove 10 below is screwed with needle 11, needle 11 above is fixed with threaded rod 12, needle 11 outside is provided with needle cover 13, threaded groove 10 and threaded rod 12 are matched, needle 11 is tightly screwed with the threaded groove 10 below retractable handle 7 through threaded rod 12, and different needle 11 can be replaced through demand, unused needle 11 is covered and protected by needle cover 13, when intravenous puncture is needed, medical staff first removes needle cover 13.

[0022] Referring to Figure 1 , needle tube 1 side is fixed with handle 14, retractable handle 7 above is fixed with infusion tube 15, handle 14 is provided with two groups, symmetrically arranged on both sides of needle tube 1, infusion tube 15 is connected with needle 11, needle tube 1 is stably held through handle 14, needle 11 is aimed at intravenous puncture, at this time, retractable handle 7 and the sliding block 8 connected therewith remain in the initial position, and do not affect the puncture operation, after successful puncture, intravenous fluid flows into needle 11 through infusion tube 15, and then enters the patient's body, in this process, the whole intravenous fluid needle system remains stable, ensuring the smooth and safe infusion.

[0023] The utility model discloses a needle system of automatic retraction and safety locking, which comprises a needle tube, a needle head, a spring, a retraction handle, a sliding block, a retraction sliding slot, a rubber sleeve, a thread rod, a thread groove, a needle head sleeve and a needle head cover.

[0024] The above description is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A retractable disposable intravenous injection needle, characterized in that, include: The needle tube (1) has an inner cavity (2) inside. A limiting sleeve (3) is fixed inside the inner cavity (2). A spring (4) is fixed below the limiting sleeve (3). A retraction groove (5) is opened on the outside of the needle tube (1). A recycling slot (6) is opened on the side of the retraction groove (5). A retraction handle (7) is slidably connected to one end of the retraction groove (5). A sliding block (8) is fixed inside the retraction handle (7). A rubber sleeve (9) is fixed outside the retraction handle (7).

2. The retractable disposable intravenous needle according to claim 1, characterized in that, A threaded groove (10) is provided below the retractable handle (7), and a needle (11) is screwed below the threaded groove (10). A threaded rod (12) is fixed above the needle (11), and a needle sleeve (13) is provided on the outside of the needle (11).

3. The retractable disposable intravenous needle according to claim 2, characterized in that, A handle (14) is fixedly attached to the side of the needle tube (1), and an infusion tube (15) is fixedly attached above the retractable handle (7).

4. The retractable disposable intravenous needle according to claim 1, characterized in that, The number of the retraction groove (5), the recycling slot (6) and the sliding block (8) are all provided in two sets, and the sliding block (8) is adapted to the retraction groove (5) and the recycling slot (6). The retraction handle (7) is located below the spring (4).

5. A retractable disposable intravenous needle according to claim 2, characterized in that, The threaded groove (10) and the threaded rod (12) are adapted to each other.

6. A retractable disposable intravenous needle according to claim 3, characterized in that, The number of handles (14) is set in two sets, which are symmetrically arranged on both sides of the needle tube (1), and the infusion tube (15) is connected to the needle (11).

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