Oral local medicine applying device

Abstract

The utility model belongs to the technical field of oral cavity medicine applying, and particularly provides an oral cavity local medicine applying device which is composed of an injection cylinder and a flexible injection head inserted at one end of the injection cylinder, a traction assembly is arranged on the outer wall of the injection cylinder, the flexible injection head comprises a sleeve, an injection tube and a chain type curvilinear device, the sleeve is inserted at the end of the injection cylinder in a penetrating mode, and the chain type curvilinear device is connected with the injection tube. The injection tube is connected to the end of the sleeve in a penetrating mode, the chain type bending and straightening device is arranged at the end of the sleeve, and the traction assembly and the chain type bending and straightening device are arranged in a transmission mode. According to the utility model, the flexible injection head can be bent and deformed under the action of eccentric traction, and the flexible injection head can automatically recover to a straight state under the action of magnetic attraction without the action of traction, so that the flexible injection head can reach a hidden area in an oral cavity to apply medicine; the problem that in the prior art, it is difficult to efficiently apply medicine to the affected part of the sight blind area in the oral cavity is effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of oral medication technology, specifically referring to an oral local medication applicator. Background Technology

[0002] During oral care, medication is usually applied to the inside of the mouth. However, the space inside the mouth is relatively narrow and there are blind spots, making medication application difficult.

[0003] Existing oral medication applicators are typically straight, rigid medication channels, such as syringes. Their medication channels are made of metal needles and cannot be bent. For oral lesions in blind spots, after a straight medication applicator is inserted into the patient's mouth, the tip of the applicator cannot directly reach the affected area. The angle of the applicator needs to be constantly adjusted to apply the medication. During this process, due to the limited space in the patient's mouth, the angle adjustment range of the applicator is limited, and the applicator may come into contact with the patient's lips, causing discomfort or even injury to the lips. At the same time, the above method has low medication efficiency and the medication application area is prone to deviation.

[0004] There is a lack of a medication applicator in the current technology that can be bent and deformed to effectively reach local lesions in the oral cavity. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a local oral medication applicator. By utilizing eccentric traction, the flexible injection head can be bent and deformed, thereby reaching hidden areas inside the oral cavity for medication application. This effectively solves the problem that the prior art is unable to efficiently apply medication to affected areas in blind spots inside the oral cavity.

[0006] The technical solution adopted by this utility model is as follows: This solution provides a local oral medication applicator, which consists of an injection cylinder and a flexible injection head inserted into one end of the injection cylinder. The outer wall of the injection cylinder is provided with a traction component. The flexible injection head includes a sleeve, an injection tube, and a chain straightener. The sleeve is inserted through the end of the injection cylinder, and the injection tube is connected through the end of the sleeve. The injection tube is a flexible pipe, and the end of the injection tube away from the injection cylinder is connected to an injection tip. The chain straightener is located at the end of the sleeve and is sleeved outside the injection tube. The traction component and the chain straightener are driven together.

[0007] The chain-type straightener is composed of rotating frames arranged in an array and hinged together in sequence. The rotating frame closest to the sleeve is fixedly connected to the sleeve. The rotating frame is formed by a long plate, two sets of trapezoidal plates and a short plate. The long plate and the short plate are arranged facing each other. The trapezoidal plates are symmetrically distributed and connected between the side wall edges of the long plate and the short plate. Adjacent rotating frames are rotatably connected by the long plate, which is made of iron. The rotating frame is sleeved on the outside of the injection tube. The short plate in the rotating frame furthest from the sleeve has a pull plate fixedly installed on its outer wall. The short plates in the other rotating frames have a limiting plate fixedly installed on their outer walls. The long plates in the other rotating frames have a magnetic suction plate fixedly installed on their outer walls. The magnetic suction plate extends to the outside of the long plate and to the long plate in its adjacent rotating frame. The limiting plate has a through hole.

[0008] The traction assembly includes an ear plate, a rotating shaft, an I-shaped plate, and a knob. The ear plate is fixed to the outer wall of the syringe. The rotating shaft is frictionally rotated through the ear plate. The I-shaped plate is coaxially fixed to one end of the rotating shaft, and the knob is coaxially fixed to the other end of the rotating shaft. A traction rope is connected between the I-shaped plate and the pull plate. The traction rope moves through the holes on all the limit plates.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] (1) The flexible injection head forms a flexible chain straightener through an array of hinged rotating frames, which enables the injection tube to bend and deform. The chain straightener and the traction assembly are driven by the eccentric traction of the traction rope. The traction assembly winds the traction rope, which enables the chain straightener to bend and deform, thus enabling efficient drug delivery to hidden areas inside the oral cavity.

[0011] (2) The magnetic plate and the long plate in the chain straightener work together. Without external interference, the magnetic plate magnetically attracts the long plate, so that the flexible injection head can automatically be straightened and is easy to reuse. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a topical oral medication applicator in Example 1. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of a topical oral medication applicator in Example 1. Figure 2 ;

[0014] Figure 3 for Figure 2 A magnified view of part B in the image;

[0015] Figure 4 This is a schematic diagram of the rotating frame that is not closest to the sleeve in Embodiment 1;

[0016] Figure 5 for Figure 1A magnified view of part A in the image;

[0017] Figure 6 This is a side view of the oral local medication applicator in use, as shown in Example 1.

[0018] Among them, 1. Injection cylinder, 11. Injection push rod, 111. Push plate, 12. Traction assembly, 121. Ear plate, 122. Rotating shaft, 123. I-beam plate, 124. Knob, 13. Guide wheel two, 14. Ring plate, 2. Flexible injection head, 21. Sleeve, 211. Guide wheel one, 22. Injection tube, 221. Injection end, 23. Chain straightener, 231. Rotating frame, 232. Long plate, 233. Trapezoidal plate, 234. Short plate, 235. Pull plate, 236. Limiting plate, 237. Magnetic suction plate, 238. Perforation, 3. Traction rope.

[0019] Figure 6 Figure a shows a side view of a local oral medication applicator in Embodiment 1 with the flexible injection head in a straight state, and Figure b shows a side view of a local oral medication applicator in Embodiment 1 with the flexible injection head in a bent state. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Example 1: Please refer to Figures 1-6 In this embodiment, a local oral medication applicator is composed of an injection cylinder 1 and a flexible injection head 2 inserted into one end of the injection cylinder 1. The injection cylinder 1 is hollow inside, and an injection push rod 11 is slidably installed inside the injection cylinder 1 in a piston manner. The injection push rod 11 extends to the outside of the other end of the injection cylinder 1. A traction assembly 12 is provided on the outer wall of the injection cylinder 1. The flexible injection head 2 includes a sleeve 21, an injection tube 22, and a chain straightener 23. The sleeve 21 is inserted through the end of the injection cylinder 1, and the injection tube 22 is connected through the end of the sleeve 21. The chain straightener 23 is provided at the end of the sleeve 21 and is sleeved outside the injection tube 22. The traction assembly 12 and the chain straightener 23 are driven by a traction rope 3.

[0022] The chain-type straightener 23 is composed of rotating frames 231 arranged in an array and hinged together. The rotating frame 231 closest to the sleeve 21 is fixedly connected to the sleeve 21. The rotating frame 231 is formed by a long plate 232, two sets of trapezoidal plates 233, and a short plate 234. The long plate 232 and the short plate 234 are arranged facing each other. The trapezoidal plates 233 are symmetrically distributed and connected between the sidewall edges of the long plate 232 and the short plate 234. Adjacent rotating frames 231 are rotatably connected through the long plate 232, which is made of iron. The rotating frame 231 is sleeved on the outside of the injection tube 22. A pull plate 235 is fixedly provided on the outer wall of the short plate 234 in the rotating frame 231 away from the sleeve 21. A limiting plate 236 is fixedly provided on the outer wall of the short plate 234 in the other rotating frames 231. A magnetic suction plate 237 is fixedly provided on the outer wall of the long plate 232 in the other rotating frames 231. The magnetic suction plate 237 extends to the outside of the long plate 232 and extends to the long plate 232 in the adjacent rotating frame 231, so that it can magnetically attract the long plate 232 in the adjacent rotating frame 231, thereby automatically positioning the chain-type straightener 23 in the attachment position without external force interference. Figure 1 In the straight state, the limiting plate 236 has a through hole 238.

[0023] The traction assembly 12 includes an ear plate 121, a rotating shaft 122, an I-shaped disc 123, and a knob 124. The ear plate 121 is fixedly mounted on the outer wall of the syringe 1. The rotating shaft 122 is frictionally rotatably mounted through the ear plate 121. The I-shaped disc 123 is coaxially fixedly connected to one end of the rotating shaft 122. The knob 124 is coaxially fixedly connected to the other end of the rotating shaft 122. A traction rope 3 is connected between the I-shaped disc 123 and the pull plate 235. The traction rope 3 moves through the perforations 238 on all the limiting plates 236.

[0024] To prevent the traction rope 3 from being worn, a rotatable guide wheel 211 is provided on the outer wall of the sleeve 21, and a rotatable guide wheel 13 is provided on the outer wall of the injection cylinder 1. The middle part of the traction rope 3 is wrapped in the guide wheel 211 and the guide wheel 13.

[0025] The injection tube 22 is a flexible tube, and the end of the injection tube 22 away from the injection cylinder 1 is connected to the injection tip 221.

[0026] An annular plate 14 is fixedly provided on the outer edge of the end of the syringe 1 away from the flexible injection head 2, and a push plate 111 is fixedly provided on the end of the injection push rod 11 away from the flexible injection head 2. The arrangement of the annular plate 14 and the push plate 111 facilitates the hand-held injection operation by medical personnel.

[0027] The working principle of this embodiment is as follows: the traction component 12 winds and pulls the traction rope 3, thereby causing the rotating frame 231 in the chain bending device 23 to rotate relative to each other, thereby causing the injection tube 22 to bend, so that medication can be applied to hidden local lesions inside the oral cavity.

[0028] The specific working process is as follows: In the initial state, the magnetic plate 237 attracts and adheres to the long plate 232 in its adjacent rotating frame 231, thereby making all the rotating frames 231 in a flat state, that is... Figure 6 As shown in Figure a, the medical staff holds the syringe 1, places the injection tip 221 into the medication, and controls the push plate 111 to slide the injection plunger 11 to draw the medication into the syringe 1. Then, the medication is applied to the inside of the patient's mouth.

[0029] During the medication application process, for unobstructed and directly visible affected areas, the flexible injection head 2 is directly inserted into the patient's mouth, and the injection tip 221 is placed close to the affected area. Then, the push plate 111 is pressed to inject the medication into the affected area through the injection tube 22 and the injection tip 221.

[0030] For concealed areas or lesions that cannot be seen, the injection tip 221 cannot be directly brought close to the lesion. Medical personnel adjust the curvature of the flexible injection tip 2 according to the location of the lesion. By rotating the knob 124, the rotating shaft 122 drives the I-shaped disc 123 to rotate. The I-shaped disc 123 winds and pulls the traction rope 3. Since the middle of the traction rope 3 passes through the perforations 238 on each limiting plate 236 and is connected to the pull plate 235, the hinge point of the traction rope 3 and each rotating frame 231 is eccentric. Therefore, the pulling effect of the traction rope 3 can make each rotating frame 231 rotate relative to each other, so that the chain straightener 23 presents a curved shape as a whole, and then the injection tube 22 bends. In this way, the injection tip 221 can enter the concealed area inside the oral cavity for medication.

[0031] After the medication is applied, the medical staff rotates the knob 124 in the opposite direction, the traction rope 3 is released, and the magnetic plate 237 will attract the long plate 232 attached to its adjacent rotating frame 231, so that all the rotating frames 231 are in a straight state again.

[0032] Example 2: This example is based on Example 1. In order to improve the efficiency of medication application in hidden areas inside the oral cavity, a miniature camera is set on the pull plate 235. The miniature camera is aligned with the injection tip 221. During medication application, the miniature camera can continuously capture images of the front end of the injection tip 221, making it easier for medical personnel to control the injection tip 221 to point towards the affected area.

[0033] The present invention and its embodiments have been described above. This description is not restrictive. The accompanying drawings show only some embodiments of the present invention, and the actual structure is not limited thereto.

Claims

1. A topical oral medication applicator, comprising an injection cylinder (1), wherein the injection cylinder (1) is hollow inside, characterized in that: The oral local drug delivery device also includes a flexible injection head (2) inserted into one end of the injection cylinder (1). The outer wall of the injection cylinder (1) is provided with a traction assembly (12). The flexible injection head (2) includes a sleeve (21), an injection tube (22) and a chain straightener (23). The sleeve (21) is inserted through into the end of the injection cylinder (1). The injection tube (22) is connected through to the end of the sleeve (21). The chain straightener (23) is located at the end of the sleeve (21) and is sleeved outside the injection tube (22). The traction assembly (12) and the chain straightener (23) are driven together. The chain straightener (23) is composed of rotating frames (231) arranged in an array and hinged in sequence. The rotating frame (231) closest to the sleeve (21) is fixedly connected to the sleeve (21).

2. The oral topical medication applicator according to claim 1, characterized in that: The rotating frame (231) is formed by connecting and surrounding a long plate (232), two sets of trapezoidal plates (233) and a short plate (234). Adjacent rotating frames (231) are rotatably connected by the long plate (232). The outer wall of the short plate (234) in the rotating frame (231) furthest from the sleeve (21) is fixedly provided with a pull plate (235). The outer wall of the short plate (234) in the other rotating frames (231) is fixedly provided with a limiting plate (236). The outer wall of the long plate (232) in the other rotating frames (231) is fixedly provided with a magnetic suction plate (237). The magnetic suction plate (237) extends to the long plate (232) in its adjacent rotating frame (231).

3. The oral topical medication applicator according to claim 2, characterized in that: The traction assembly (12) includes an ear plate (121), a rotating shaft (122), an I-shaped plate (123), and a knob (124). The ear plate (121) is fixedly mounted on the outer wall of the syringe (1). The rotating shaft (122) is frictionally rotated through the ear plate (121). The I-shaped plate (123) and the knob (124) are coaxially fixedly connected to the rotating shaft (122). A traction rope (3) is connected between the I-shaped plate (123) and the pull plate (235). The traction rope (3) moves through all the limiting plates (236).

4. The oral topical medication applicator according to claim 2, characterized in that: The long plate (232) is made of iron.

5. The oral topical medication applicator according to claim 3, characterized in that: The outer wall of the sleeve (21) is provided with a guide wheel 1 (211) for rotation, and the outer wall of the injection cylinder (1) is provided with a guide wheel 2 (13) for rotation. The middle part of the traction rope (3) passes around the guide wheel 1 (211) and the guide wheel 2 (13).

6. The oral topical medication applicator according to claim 1, characterized in that: The injection tube (22) is a flexible tube, and the end of the injection tube (22) away from the injection cylinder (1) is connected to the injection tip (221).

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