Protective dental flushing device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a protective dental flushing device which comprises an injector, a flushing pipe and a connecting elbow, and the connecting elbow is arranged between the injector and the flushing pipe. The injector comprises an injection cylinder, a liquid storage chamber arranged in the injection cylinder, a handheld push rod inserted in the liquid storage chamber in a sliding mode, a sealing piston fixedly arranged at the front end of the handheld push rod and a first connector coaxially arranged at the front end of the injection cylinder and communicated with the liquid storage chamber. The flushing pipe comprises an elastic pipe body, a flushing cavity arranged in the elastic pipe body and a second connector coaxially arranged at the rear end of the elastic pipe body and communicated with the flushing cavity, and the front end of the elastic pipe body is closed; strong stimulation caused by direct injection of flushing fluid from the end face of the needle tube to the affected part of a patient in a traditional flushing device is avoided, and discomfort of the patient is reduced; the front end of the elastic tube body is in a closed round head shape, so that potential injury to the oral cavity of a patient is effectively reduced, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to a protection type dental flushing device. BACKGROUND

[0002] In the process of treating dental diseases in dentistry, such as root canal treatment, a flushing tool is needed to flush the inside of the tooth. The commonly used dental flushing device includes a syringe and a bent needle tube, and the end face of the bent needle tube is provided with a liquid outlet. During flushing, the flushing liquid is directly injected from the end face of the needle tube, which has strong irritability to the affected area and causes discomfort to the patient. At the same time, the commonly used dental flushing device adopts a metal needle tube with a bending angle, which has high hardness and sharp edges, which is not conducive to adjusting the injection angle and is easy to cause secondary damage to the patient's oral cavity. SUMMARY

[0003] The utility model solves the technical problem in the prior art and provides a protection type dental flushing device which has less irritability to the affected area, is conducive to adjusting the injection angle, and can effectively prevent secondary damage to the patient's oral cavity.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A protection type dental flushing device, characterized in that:

[0006] It comprises a syringe, a flushing pipe and a connecting elbow, and the connecting elbow is arranged between the syringe and the flushing pipe;

[0007] The syringe comprises a syringe barrel, a liquid storage chamber arranged in the syringe barrel, a handheld push rod slidingly inserted into the liquid storage chamber, a sealing piston fixedly arranged at the front end of the handheld push rod, and a first connector coaxially arranged at the front end of the syringe barrel and communicating with the liquid storage chamber;

[0008] The flushing pipe comprises an elastic pipe body, a flushing chamber arranged in the elastic pipe body, and a second connector coaxially arranged at the rear end of the elastic pipe body and communicating with the flushing chamber, wherein the front end of the elastic pipe body is closed, and a plurality of liquid outlets communicating with the flushing chamber are formed in the front end side of the elastic pipe body;

[0009] The connecting elbow comprises an elbow body, a first interface coaxially connected to the first connector arranged at the rear end of the elbow body, and a second interface coaxially connected to the second connector arranged at the front end of the elbow body, wherein the first interface and the second interface are in communication to form a connecting channel connecting the liquid storage chamber and the flushing chamber, and the axis of the first interface and the second interface intersects and forms a bending angle not less than 100°.

[0010] The technical problem to be solved by the utility model can also be further realized by the following steps: the front end of the elastic pipe body is a closed round head.

[0011] The technical problems to be solved by the utility model can be further realized by the following steps, the liquid outlet is uniformly provided with 2-6 along the circumferential direction around the axis of the elastic tube body.

[0012] The technical problems to be solved by the utility model can be further realized by the following steps, the elastic tube body is a tapered structure arranged from large to small in the flow direction of the liquid.

[0013] The technical problems to be solved by the utility model can be further realized by the following steps, the liquid outlet is an oval shape, and the direction of the liquid outlet is parallel to the axis direction of the elastic tube body.

[0014] The technical problems to be solved by the utility model can be further realized by the following steps, the bending angle is 105°-135°.

[0015] The technical problems to be solved by the utility model can be further realized by the following steps, the first joint is a tapered plug, a male luer joint is fixedly arranged on the injection barrel body on the outer circumferential side of the tapered plug, the first interface is a tapered notch, and a female luer joint matched with the male luer joint is fixedly arranged on the elbow body on the outer circumferential side of the tapered notch.

[0016] The technical problems to be solved by the utility model can be further realized by the following steps, the second joint is a cylindrical needle seat, an outer thread is arranged on the outer circumferential surface of the cylindrical needle seat, the second interface is a cylindrical notch, and an inner thread matched with the outer thread is arranged on the inner circumferential side of the cylindrical notch.

[0017] The technical problems to be solved by the utility model can be further realized by the following steps, the side edge portion of the handheld push rod is provided with a curled edge facilitating hand holding.

[0018] The technical problems to be solved by the utility model can be further realized by the following steps, the injection barrel body is provided with scale lines facilitating reading.

[0019] Compared with the prior art, the utility model has the beneficial effects that: through the arrangement of the elastic tube body with the closed front end and the side opening, the flushing liquid can be dispersed and sprayed from the multiple liquid outlets, avoiding the strong stimulation of the flushing liquid directly radiating from the needle tube end face to the patient's affected part in the traditional flushing device, thereby reducing the discomfort of the patient; through the arrangement of the connecting elbow, the bending angle is formed between the flushing pipe and the syringe, and the flushing angle can be more conveniently adjusted; the front end of the elastic tube body is a closed round head, which effectively reduces the potential harm to the patient's oral cavity and improves the safety in use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a split schematic view of the utility model;

[0021] Figure 2 The split sectional view of the present application is shown in the figure.

[0022] Figure 3 The structure diagram of the connecting elbow of the present application is shown in the figure.

[0023] Figure 4 The enlarged diagram of A in the figure. Figure 2

[0024] Figure 5 The B direction diagram of the flushing pipe in the figure. Figure 2

[0025] The figure shows:

[0026] 1-injector; 2-flushing pipe; 3-connecting elbow;

[0027] 101-injector barrel; 102-liquid storage chamber; 103-handheld push rod; 104-sealing piston; 105-first joint; 106-male luer joint; 107-crimped edge; 108-scale line;

[0028] 201-elastic tube body; 202-flushing chamber; 203-second joint; 204-liquid outlet;

[0029] 301-elbow body; 302-first interface; 303-second interface; 304-connection channel; 305-female luer joint. DETAILED DESCRIPTION

[0030] The specific technical scheme of the present application is further described below, so that those skilled in the art can further understand the present application, without constituting a limitation on its rights.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0032] Please refer to Figures 1-5 ​​The utility model provides a protective dental flushing device, which comprises a syringe 1, a flushing pipe 2 and a connecting elbow 3 arranged between the syringe 1 and the flushing pipe 2; the syringe 1 comprises a syringe barrel 101, a liquid storage chamber 102 arranged in the syringe barrel 101, a handheld push rod 103 slidingly arranged in the liquid storage chamber 102, a sealing piston 104 fixedly arranged at the front end of the handheld push rod 103 and a first connector 105 coaxially and fixedly arranged at the front end of the syringe barrel 101 and in communication with the liquid storage chamber 102; the first connector 105 is integrally connected with the syringe barrel 101, and the outer diameter of the first connector 105 is less than 1 / 4 of the outer diameter of the syringe barrel 101.

[0033] The flushing pipe 2 comprises an elastic pipe body 201, a flushing chamber 202 arranged in the elastic pipe body 201 and a second connector 203 coaxially and fixedly arranged at the rear end of the elastic pipe body 201 and in communication with the flushing chamber 202, wherein the front end of the elastic pipe body 201 is closed, a plurality of liquid outlets 204 in communication with the flushing chamber 202 are arranged on the side of the front end of the elastic pipe body 201, the elastic pipe body 201 is a straight pipe, and the material of the elastic pipe body 201 is plastic or rubber with both elasticity and toughness, preferably medical TPU or medical TPE.

[0034] The connecting elbow 3 comprises an elbow body 301, a first interface 302 arranged at the rear end of the elbow body 301 and coaxially and fixedly connected with the first connector 105 and a second interface 303 arranged at the front end of the elbow body 301 and coaxially and fixedly connected with the second connector 203, wherein the first interface 302 and the second interface 303 are in communication to form a connecting channel 304 connecting the liquid storage chamber 102 and the flushing chamber 202, the axes of the first interface 302 and the second interface 303 intersect to form a bending angle (i.e. the angle α in the figure) of not less than 100°, and the connecting elbow 3 forms a bending angle between the flushing pipe 2 and the syringe 1, so that the flushing angle can be adjusted more conveniently. Figure 3

[0035] The front end of the elastic pipe body 201 is in the form of a closed round head, so that the patient is further prevented from being accidentally scratched or scraped during flushing, and the protection performance is further improved.

[0036] The 2-6 liquid outlets 204 are uniformly arranged around the axis of the elastic pipe body 201 in the circumferential direction, and the liquid outlets 204 are arranged at a distance of 0.4-0.8 mm from the front end surface of the elastic pipe body 201, so that the flushing effect is ensured.

[0037] The elastic pipe body 201 is in the form of a tapered structure with a gradually decreasing diameter along the flow direction of the liquid, the liquid outlet 204 is in the form of an oval port, the direction of the liquid outlet 204 is parallel to the axial direction of the elastic pipe body 201, the liquid flow is slightly constricted, and the positioning during flushing is facilitated.

[0038] The bending angle is 105°-135°, which can be set according to the use requirement. ​

[0039] The first joint 105 is a taper plug, a male luer joint 106 is fixed on the outer circumferential side of the injection barrel 101, the first interface 302 is a taper notch, a female luer joint 305 is fixed on the outer circumferential side of the elbow body 301 and is screwed with the male luer joint 106; the luer joint is convenient to disassemble and assemble and has high sealing performance, can effectively prevent liquid or gas from leaking and ensures that the flushing liquid is not polluted by the external environment.

[0040] The second joint 203 is a cylindrical needle seat, the outer circumferential surface of the cylindrical needle seat is provided with external threads, and the second interface 303 is a cylindrical notch, the inner circumferential side of the cylindrical notch is provided with internal threads which are connected with the external threads.

[0041] The side edge portion of the handheld push rod 103 is provided with a curled edge 107 which is convenient for a hand to hold; the curled edge 107 not only enhances the stability of holding but also reduces the pressure on the hand after long-time use.

[0042] The injection barrel 101 is provided with scale lines 108 which are convenient for a human eye to read; medical staff can accurately control the amount of flushing liquid through the scale lines 108, avoid waste and ensure the effectiveness of treatment.

[0043] The utility model discloses a protective dental flushing device, when using, first, the first interface 302 (taper notch) of connecting elbow 3 is coaxial with the first joint 105 (taper plug) of syringe 1 and is connected, and is fixed through the thread connection of female luer joint 305 and male luer joint 106, and the second interface 303 (cylindrical notch) of connecting elbow 3 is coaxial with the second joint 203 (cylindrical needle seat) of flushing pipe 2 and is connected, and is fixed through the close cooperation of internal thread and external thread, and the device installation is completed, then according to the treatment needs, the appropriate flushing liquid is selected and is injected into the liquid storage chamber 102 of injection barrel 101, then the elastic tube body 201 is stretched into the inside of patient's oral cavity, and the flushing angle of the affected part is found, because the elastic tube body 201 has elasticity, and the front end is closed round head shape, can effectively prevent the harm to patient's oral cavity, after finding the flushing angle, slowly push the handheld push rod 103 forward, and the sealing piston 104 slides in the liquid storage chamber 102, and the flushing liquid is extruded and enters the flushing chamber 202 of elastic tube body 201 through the connecting channel 304 of connecting elbow 3, because the liquid outlet 204 is evenly distributed around the elastic tube body 201 axis, the flushing liquid sprays from each liquid outlet 204 in soft and uniform mode, guarantees the flushing effect, and maximumly reduces the stimulation and harm to the soft tissue of patient's oral cavity.

[0044] In conclusion, the protective dental flushing device provides a more efficient, safe and comfortable flushing solution for dental treatment with flexible angle adjustment, comfortable holding design, accurate flushing positioning and high sealing safety.

[0045] Obviously, the embodiments described are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A protective dental flushing device, characterized in that: comprising a syringe, a flushing tube and a connecting elbow, the connecting elbow is arranged between the syringe and the flushing tube; the syringe comprises a syringe barrel, a liquid storage chamber arranged in the syringe barrel, a handheld push rod slidingly arranged in the liquid storage chamber, a sealing piston fixedly arranged at the front end of the handheld push rod, and a first connector coaxially arranged at the front end of the syringe barrel and in communication with the liquid storage chamber; the flushing tube comprises an elastic tube body, a flushing chamber arranged in the elastic tube body, and a second connector coaxially arranged at the rear end of the elastic tube body and in communication with the flushing chamber, wherein the front end of the elastic tube body is closed, and a plurality of liquid outlets in communication with the flushing chamber are arranged on the side of the front end of the elastic tube body; the connecting elbow comprises an elbow body, a first interface coaxially connected to the first connector arranged at the rear end of the elbow body, and a second interface coaxially connected to the second connector arranged at the front end of the elbow body, wherein the first interface and the second interface are in communication to form a connecting channel connecting the liquid storage chamber and the flushing chamber, and the axis of the first interface and the second interface intersects and forms a bending angle of not less than 100°. The front end of the elastic tube body is a closed round head. The liquid outlets are uniformly arranged in 2-6 around the axis of the elastic tube body. The elastic tube body is a tapered structure with a diameter decreasing from large to small along the flow direction of the liquid. The liquid outlet is an oval port, and the direction of the liquid outlet is parallel to the axis direction of the elastic tube body.

2. The protective dental irrigation device of claim 1, wherein: The bending angle is 105°-135°.

3. The protective dental irrigation device of claim 1, wherein: The first connector is a tapered plug, and a male Luer connector is fixedly arranged on the outer circumferential side of the syringe barrel, the first interface is a tapered slot, and a female Luer connector is fixedly arranged on the outer circumferential side of the elbow body and connected to the male Luer connector.

4. The protective dental irrigation device of claim 1, wherein: The second connector is a cylindrical needle seat, and an external thread is arranged on the outer circumferential surface of the cylindrical needle seat, the second interface is a cylindrical slot, and an internal thread is arranged on the inner circumferential side of the cylindrical slot and connected to the external thread.

5. The protective dental irrigation device of claim 4, wherein: The side edge of the handheld push rod is provided with a curled edge for easy holding by hand.

6. The shielded dental irrigation device of claim 1, wherein: The syringe barrel is provided with scale lines for easy reading.

7. The shielded dental irrigation device of claim 1, wherein: ​ 8. The protective dental irrigation device of claim 1, wherein: ​ 9. The protective dental irrigation device of claim 1, wherein: ​ 10. The protective dental irrigation device of claim 1, wherein: ​

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