Disposable sterile automatic liquid medicine suction injector

Abstract

The utility model discloses a disposable sterile automatic liquid medicine suction syringe, which relates to the technical field of medical instruments, and comprises a syringe body and an injection head, the injection head is connected with an extension tube, the injection head is detachably connected with a fixing sleeve, the fixing sleeve is detachably connected with a connector, and the connector is connected with the extension tube. The other end of the connector is fixedly communicated with an extension tube, the connection stability of the injector body and the extension tube is improved conveniently through the arrangement of the fixing sleeve, the fixing sleeve is arranged on the injection head in a sleeving mode firstly, then the connector is rotated to enable internal threads on the connector to be completely meshed with external threads on the fixing sleeve, and firm mechanical connection is formed; the fixing sleeve made of silica gel is connected with the injection head, and the fixing sleeve is in threaded locking connection with the extension tube, so that a double-locking effect is provided, the stability of the connecting part of the injector and the extension tube is improved, and the risk of loosening is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of disposable sterile automatic suction liquid medicine syringe. BACKGROUND

[0002] Disposable sterile automatic suction liquid medicine syringe is a kind of equipment specially designed for medical purposes, it combines the convenience and sterility of disposable use and the function of automatic suction liquid medicine, it is extremely suitable for emergency, operating room, clinic and hospital ward etc., while the combination use of disposable sterile automatic suction liquid medicine syringe and extension tube provides additional flexibility and convenience in medical procedure, extension tube can be connected to the end of syringe, allow medical staff to operate syringe without directly contacting liquid medicine, so as to reduce the risk of contamination, and protect medical staff from potential biological hazards.

[0003] But the extension tube of existing syringe often appears loosening phenomenon in use process, this not only leads to injection interruption, but also can cause blood backflow, thereby leading to the problem of increasing infection risk.

[0004] Therefore, in view of the above, the existing structure is studied and improved, and a disposable sterile automatic suction liquid medicine syringe is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of disposable sterile automatic suction liquid medicine syringe to solve the problem of unstable connection of syringe and extension tube in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of disposable sterile automatic suction liquid medicine syringe, including syringe body and injection head, the injection head is connected with extension tube, the injection head is detachably connected with fixed sleeve, the fixed sleeve is detachably connected with connecting head, the other end of the connecting head is fixedly connected with extension tube.

[0007] Further, one end of the fixed sleeve is made of elastic material, and the fixed sleeve of elastic material end is wrapped on the injection head, the other end of the fixed sleeve is made of stainless steel material, the outer wall of the fixed sleeve of stainless steel end is provided with external thread.

[0008] Further, the inner wall of the fixed sleeve is provided with anti-skid line.

[0009] Further, the inner wall of the connecting head is provided with internal thread, and the connecting head is connected with the fixed sleeve by the connection of internal thread and external thread.

[0010] Further, the inside of the fixed sleeve is provided with one-way valve.

[0011] Further, the extension tube adopts transparent medical grade material, facilitating observation of liquid flow.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses a fixing sleeve is set to improve the stability of the connection of the syringe body and the extension tube, first, the fixing sleeve is sleeved on the injection head, then the internal thread on the connecting head is completely engaged with the external thread on the fixing sleeve, forming firm mechanical connection, the fixing sleeve and the injection head are connected through silica gel material, the fixing sleeve and the extension tube are combined with the threaded locking connection, providing double locking effect, improving the stability of the syringe and the extension tube connection part, reducing the risk of loosening. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the schematic diagram of the fixing sleeve and extension tube connection structure of the device body;

[0015] Figure 2 It is the schematic diagram of the fixing sleeve and extension tube connection structure of the device body;

[0016] Figure 3 It is Figure 2 The enlarged schematic view of the middle A structure.

[0017] In the drawing: 1, syringe body;11, injection head;2, fixing sleeve;21, connecting head;211, internal thread;212, external thread;213, extension tube;22, one-way valve;23, anti-skid line. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with 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.

[0019] Embodiment one

[0020] As Figure 1 - Figure 3As shown, a disposable sterile automatic suction medicine injection device includes an injection device body 1 and an injection head 11, the injection head 11 is connected with an extension tube 213, the injection head 11 is detachably connected with a fixing sleeve 2, the fixing sleeve 2 is detachably connected with a connecting head 21, the other end of the connecting head 21 is fixedly connected with the extension tube 213, the injection device body 1 extracts medicine through the injection head 11, and then the injection head 11 is connected with the extension tube 213, and the patient is injected with medicine through the extension tube 213, which reduces the contact between medical staff and patients and reduces the risk of infection, and the transparent material of the extension tube 213 can also facilitate observation of the flow of the internal liquid, thereby monitoring and adjusting, but the existing injection device extension tube 213 often appears loose during use due to the unstable connection part, which not only causes the injection to be interrupted, but also may cause blood backflow, thereby increasing the risk of infection. When the injection device body 1 is connected with the extension tube 213, the fixing sleeve 2 is provided to improve the connection stability of the injection device body 1 and the extension tube 213, the fixing sleeve 2 is first sleeved on the injection head 11, and then the inner thread 211 on the connecting head 21 is fully engaged with the outer thread 212 on the fixing sleeve 2 to form a firm mechanical connection. The fixing sleeve 2 made of silica gel material is connected with the injection head 11, and the fixing sleeve 2 is screw-locked with the extension tube 213, which provides a double locking effect and improves the stability of the connection part of the injection device and the extension tube 213, thereby reducing the risk of loosening.

[0021] Further, one end of the fixing sleeve 2 is made of elastic material, and the fixing sleeve 2 of the elastic material end is wrapped on the injection head 11, and the other end of the fixing sleeve 2 is made of stainless steel material, and the outer wall of the fixing sleeve 2 of the stainless steel end is provided with an outer thread 212, the elastic material end of the fixing sleeve 2 is made of medical grade material such as PVC or silica gel, which ensures biocompatibility and reduces allergic reactions, and the elastic material end of the fixing sleeve 2 has good resilience and can adapt to injection heads 11 of different sizes, and the stainless steel end of the fixing sleeve 2 is made of stainless steel material, which has high corrosion resistance and strength, and ensures the stability under long-term use.

[0022] Further, the inner wall of the fixing sleeve 2 is provided with anti-skid lines 23, and the anti-skid lines 23 are added inside the fixing sleeve 2 to increase the friction and ensure that the fixing sleeve 2 is connected with the injection head 11 more firmly.

[0023] Further, the inner wall of the connecting head 21 is provided with an inner thread 211, the connecting head 21 is screw-connected with the fixing sleeve 2 through the connection of the inner thread 211 and the outer thread 212, and the fixing sleeve 2 is screw-connected with the extension tube 213 through the outer thread 212 and the inner thread 211, which not only provides stable connection for the two, but also makes connection and disconnection very simple and fast, greatly saving the time of medical staff.

[0024] Further, the inside of the fixing sleeve 2 is provided with a one-way valve 22, through the design of the one-way valve 22, the liquid in the syringe body 1 can only flow into the extension tube 213 in one direction, effectively preventing the situation of patient blood backflow.

[0025] Further, the extension tube 213 is made of transparent medical grade material, which facilitates observation of liquid flow, and when there are abnormal conditions such as blood backflow or air bubbles, the transparent extension tube 213 can be used to discover abnormalities in time, and then the medical staff can handle it.

[0026] Working principle: when using the disposable sterile automatic pumping liquid injection syringe, when the syringe body 1 is connected with the extension tube 213, the fixing sleeve 2 is arranged to improve the connection stability of the syringe body 1 and the extension tube 213, the fixing sleeve 2 is first sleeved on the injection head 11, then the inner thread 211 on the connecting head 21 is fully engaged with the outer thread 212 on the fixing sleeve 2, forming a firm mechanical connection, the fixing sleeve 2 is connected with the injection head 11 through the silica gel material, the fixing sleeve 2 and the extension tube 213 are screw-locked, providing double locking effect, improving the stability of the connection part of the syringe and the extension tube 213, and reducing the risk of loosening.

[0027] This is the working principle of the disposable sterile automatic pumping liquid injection syringe.

[0028] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A disposable sterile automatic suction liquid medicine injector, comprising an injector body (1) and an injection head (11), an extension tube (213) is connected to the injection head (11), characterized in that, The injection head (11) is detachably connected with a fixing sleeve (2), one end of the fixing sleeve (2) is made of elastic material and is wrapped on the injection head (11), the other end of the fixing sleeve (2) is made of stainless steel, and an outer wall of the fixing sleeve (2) is provided with external threads (212).

2. The disposable sterile auto-disable medicament suction syringe of claim 1, wherein, The inner wall of the fixing sleeve (2) is provided with anti-skid lines (23).

3. The disposable sterile auto-disable medicament suction syringe of claim 1, wherein, The inner wall of the connecting head (21) is provided with internal threads (211), and the connecting head (21) is threadedly connected with the fixing sleeve (2) through the connection of the internal threads (211) and the external threads (212).

4. The disposable sterile auto-disable medicament suction syringe of claim 1, wherein, The inside of the fixing sleeve (2) is provided with a one-way valve (22).

5. The disposable sterile auto-disable medicament suction syringe of claim 1, wherein, The extension pipe (213) is made of transparent medical-grade material, facilitating the observation of liquid flow.

6. The disposable sterile auto-disable medicament suction syringe of claim 1, wherein, ​

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