Multi-angle steering saliva suction tube

Abstract

The multi-angle steering saliva suction tube comprises a first tube body, a second tube body and a third tube body, one end of the rotating part is rotationally connected with one end of the first pipe body; one end of the second pipe body is rotationally connected with the other end of the rotating part; wherein the rotating part is formed by rotationally connecting the head ends and the tail ends of a plurality of third pipe bodies with the same pipe diameter, and the third pipe bodies are arc-shaped. Through the mode, the saliva suction tube disclosed by the invention can be bent and rotated towards different angles, the saliva suction tube is not easy to rebound after being bent or rotated, the bending and steering shaping are good, the aperture of the inner tube after being bent and rotated is not changed so as to ensure that the flow of the saliva suction tube is not changed, in addition, the bent parts are connected in a clearance fit mode, the sealing performance is good, and the sealing effect is good. And the liquid leakage phenomenon is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oral medical instruments, and in particular to a saliva suction tube capable of turning at multiple angles. Background Art

[0002] During clinical treatment in the Department of Dentistry, such as when performing tooth filling and restorative treatment, the surgical area often needs to be kept dry and moisture-proof to prevent water and saliva from contaminating the tooth surface and causing acid erosion failure, entering the cavity and affecting the fit between the filling material and the cavity wall, or entering the pulp cavity and causing pulp cavity infection. In conventional methods, doctors use saliva suction tubes, while saliva suction devices use the negative pressure generated by water flow and air suction to suck out the saliva in the mouth so as not to affect the doctor's operation.

[0003] For better operation, the saliva suction tubes on the market are made of soft plastic with built-in steel wires. They can be bent and rely on the steel wires to be shaped. Therefore, doctors can bend the saliva suction tubes in the patient's mouth to the desired angle and shape them in a certain position as needed. However, most of the saliva suction tubes on the market are made of disposable soft plastic and steel wires. They are easy to rebound after bending (or turning) and cannot be shaped in the desired position. At the same time, after the saliva suction tubes on the market are bent, the aperture of the inner tube will become smaller, resulting in a smaller flow rate of the saliva suction tube. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a saliva suction tube with multi-angle turning function to solve the above technical problems.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a saliva suction tube with multi-angle steering, characterized in that it includes: a first tube body; a rotating part, one end of which is rotatably connected to one end of the first tube body; a second tube body, one end of which is rotatably connected to the other end of the rotating part; wherein the rotating part is formed by rotatably connecting the head and tail ends of multiple third tube bodies with the same tube diameter, and the third tube bodies are in an arc shape.

[0006] Furthermore, the outer diameters of the first tube body, the third tube body and the second tube body are all the same, and the first tube body and the third tube body, the second tube body and the third tube body, and two adjacent third tube bodies are all connected by a clearance fit.

[0007] Furthermore, one end of the third tube body is provided with a first connecting structure, the other end of the third tube body is provided with a second connecting structure rotatably connected to the first connecting structure at one end of the adjacent third tube body, one end of the first tube body is provided with a third connecting structure rotatably connected to the first connecting structure of the third tube body, and one end of the second tube body is provided with a fourth connecting structure rotatably connected to the second connecting structure of the third tube body.

[0008] Furthermore, the first connecting structure includes a first receiving groove arranged on the inner wall of one end of the third tube body and connected to the inner hole of the third tube body, wherein a first annular clamping groove in the shape of a circular ring is provided at the bottom of the side wall of the first receiving groove, and the second connecting structure includes a first protruding portion arranged at the other end of the third tube body and extending outward, the first protruding portion is used to be received in the first receiving groove, and the end of the first protruding portion is provided with a first clamping portion for clamping and rotating in the first annular clamping groove, the inner hole of the third tube body passes through the first protruding portion, and the first clamping portion is in the shape of a circular ring.

[0009] Furthermore, the aperture of the first receiving groove is larger than the aperture of the third tube body, the outer diameter of the first protrusion is equal to the aperture of the first receiving groove, and the outer diameter of the first clamping portion is smaller than the outer diameter of the third tube body.

[0010] Furthermore, a first inclined surface is provided at the end of the first clamping portion away from the third tube body, and a second inclined surface corresponding to the first inclined surface is provided at one end of the first annular clamping groove close to the third tube body.

[0011] Furthermore, the third connecting structure includes a second protruding portion arranged at one end of the first tube body and extending outward, the second protruding portion being used to be received in the first receiving groove, wherein the end of the second protruding portion is provided with a second clamping portion for clamping and rotating in the first annular clamping groove, the inner hole of the first tube body passes through the second protruding portion, and the second clamping portion is in a circular ring shape; the fourth connecting structure includes a second receiving groove arranged on the inner wall of one end of the second tube body and connected to the inner hole of the second tube body, the second receiving groove being used to receive the first protruding portion, wherein the bottom of the side wall of the second receiving groove is provided with a second annular clamping groove in a circular ring shape for clamping the first clamping portion.

[0012] Furthermore, the outer diameter of the second protrusion is equal to the aperture of the first receiving groove, the outer diameter of the second clamping portion is smaller than the outer diameter of the first tube body, and the end of the second clamping portion away from the first tube body is provided with a third inclined surface corresponding to the second inclined surface; the aperture of the second receiving groove is equal to the outer diameter of the first protrusion, and the end of the second annular clamping groove close to the second tube body is provided with a fourth inclined surface corresponding to the first inclined surface.

[0013] Furthermore, the end of the other end of the second tube body is sealed, and a plurality of adsorption holes are arranged at intervals on the side wall of the other side of the second tube body, wherein the adsorption holes are in the shape of long strips and are arranged along the length direction of the second tube body.

[0014] Furthermore, a plurality of grooves are provided at intervals on the side wall of the other side of the second tube body along the length direction of the second tube body, wherein the adsorption hole is provided in one end of the groove away from the rotating part.

[0015] The beneficial effects of the present invention are as follows: Different from the prior art, the multi-angle turning saliva suction tube disclosed by the present invention comprises: a first tube body; a rotating part, one end of which is rotatably connected to one end of the first tube body; a second tube body, one end of which is rotatably connected to the other end of the rotating part; wherein the rotating part is formed by rotatably connecting the head and tail ends of a plurality of third tube bodies with the same tube diameter, and the third tube bodies are in an arc shape. Through the above method, the saliva suction tube disclosed by the present invention can be bent and rotated at different angles, is not easy to rebound after bending or rotating, has a good turning and shaping model, and the aperture of the inner tube remains unchanged after bending and rotating to ensure that the flow rate of the saliva suction tube remains unchanged. In addition, the bend is connected by a clearance fit method, has good sealing performance, and will not leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the saliva suction tube with multi-angle turning according to the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure of the saliva suction duct;

[0018] Figure 3 yes Figure 1 A schematic structural diagram of the first tube body of the saliva suction tube;

[0019] Figure 4 yes Figure 1 A schematic diagram of the structure of the second tube body of the saliva suction tube;

[0020] Figure 5 yes Figure 1 A first structural schematic diagram of the rotating part of the saliva suction tube;

[0021] Figure 6 yes Figure 1 A second structural schematic diagram of the rotating part of the saliva suction tube;

[0022] Figure 7 yes Figure 1 A schematic diagram of a first cross-sectional structure of the third tube body of the saliva suction tube;

[0023] Figure 8 yes Figure 1 A schematic diagram of a second cross-sectional structure of the third tube body of the saliva suction tube. DETAILED DESCRIPTION

[0024] like Figure 1-8As shown, the multi-angle turning saliva suction tube disclosed in the present invention comprises a first tube body 11 , a second tube body 12 and a rotating part 13 .

[0025] One end of the rotating part 13 is rotatably connected to one end of the first tube body 11, and one end of the second tube body 12 is rotatably connected to the other end of the rotating part 13. It should be understood that the first tube body 11 and the second tube body 12 can be rotated by the rotating part 13, so that the saliva suction tube can be bent and rotated at different angles, and it is not easy to rebound after bending and rotating, and the steering is well fixed. Moreover, the aperture of the inner tube remains unchanged after bending and rotating, so as to ensure that the flow rate of the saliva suction tube remains unchanged.

[0026] In this embodiment, the rotating part 13 is formed by rotating the head and tail ends of a plurality of third tube bodies 131 of the same diameter, wherein the third tube body 131 is in an arc shape, so that it can be rotated and bent in different directions. It is worth noting that the bending adjustment of the saliva suction tube in this embodiment is achieved by rotating the plurality of third tube bodies 131 to adjust the bending angle, which is simple to operate and not prone to rebound.

[0027] Preferably, the central angle corresponding to the third tube body 131 is in the range of 120-150 degrees.

[0028] Preferably, the outer diameters of the first tube 11, the third tube 131 and the second tube 12 are the same. It should be understood that the outer diameters of the first tube 11, the third tube 131 and the second tube 12 of this embodiment are relatively small, that is, the outer diameters of the first tube 11, the third tube 131 and the second tube 12 range from 2 to 8 cm.

[0029] Furthermore, the first tube body 11 and the third tube body 131, the second tube body 12 and the third tube body 131, and two adjacent third tube bodies 131 are connected by a clearance fit. That is to say, the bends of the saliva suction tube of this embodiment are connected by a clearance fit, which has good sealing performance and will not leak.

[0030] In this embodiment, a first connecting structure is provided at one end of the third tube body 131, and a second connecting structure is provided at the other end of the third tube body 131 which is rotatably connected to the first connecting structure at one end of an adjacent third tube body 131, that is, the first connecting structure of one of two adjacent third tube bodies 131 is rotatably connected to the second connecting structure of the other of the two adjacent third tube bodies 131.

[0031] Furthermore, one end of the first tube body 11 is provided with a third connection structure rotatably connected to the first connection structure of the third tube body 131 , and one end of the second tube body 12 is provided with a fourth connection structure rotatably connected to the second connection structure of the third tube body 131 .

[0032] Specifically, the first connection structure includes a first receiving groove 1311 arranged on the inner wall of one end of the third tube body 131 and connected to the inner hole of the third tube body 131 , wherein a first annular groove 1312 in an annular shape is provided at the bottom of the side wall of the first receiving groove 1311 .

[0033] Furthermore, the second connecting structure includes a first protrusion 1313 arranged at the other end of the third tube body 131 and extending outward (extending along the length direction of the third tube body 131), the first protrusion 1313 is used to be accommodated in the first receiving groove 1311, and the end of the first protrusion 1313 is provided with a first clamping portion 1314 for clamping and rotating in the first annular clamping groove 1312.

[0034] Preferably, the inner hole of the third tube body 131 passes through the first protruding portion 1313 , and the first clamping portion 1314 is in a circular ring shape.

[0035] Preferably, the aperture of the first receiving groove 1311 is larger than the aperture of the third tube body 131, the outer diameter of the first protrusion 1313 is equal to the aperture of the first receiving groove 1311, the outer diameter of the first clamping portion 1314 is smaller than the outer diameter of the third tube body 131, and the outer diameter of the first clamping portion 1314 is equal to the aperture of the first annular clamping groove 1312.

[0036] Furthermore, a first inclined surface 1315 is provided at the end of the first clamping portion 1314 away from the third tube body 131, and a second inclined surface 1316 corresponding to the first inclined surface 1315 is provided at one end of the first annular clamping groove 1312 close to the third tube body 131, so that when the first clamping portion 1314 is accommodated in the first annular clamping groove 1312, the first inclined surface 1315 is tightly fitted and connected with the second inclined surface 1316.

[0037] In this embodiment, the third connecting structure includes a second protrusion 111 arranged at one end of the first tube body 11 and extending outward (extending along the length direction of the first tube body 11), wherein the second protrusion 111 is used to be accommodated in the first receiving groove 1311, and the end of the second protrusion 111 is provided with a second clamping portion 112 for clamping and rotating in the first annular clamping groove 1312.

[0038] Preferably, the inner hole of the first tube body 11 passes through the second protruding portion 111 , and the second clamping portion 112 is in a circular ring shape.

[0039] In this embodiment, the fourth connection structure includes a second receiving groove 121 which is arranged on the inner wall of one end of the second tube body 12 and connected to the inner hole of the second tube body 12, wherein the second receiving groove 121 is used to accommodate the first protrusion 1311, and the bottom of the side wall of the second receiving groove 121 is provided with a second annular groove 122 which is in a circular shape and is used to clamp the first clamping portion 1314.

[0040] Preferably, the outer diameter of the second protrusion 111 is equal to the aperture of the first receiving groove 1311, the outer diameter of the second clamping portion 112 is smaller than the outer diameter of the first tube body 11, and the end of the second clamping portion 112 away from the first tube body 11 is provided with a third inclined surface 113 corresponding to the second inclined surface 1316, so that when the second clamping portion 112 is received in the first annular clamping groove 1312, the third inclined surface 113 is tightly fitted and connected with the second inclined surface 1316.

[0041] Furthermore, the aperture of the second receiving groove 121 is equal to the outer diameter of the first protrusion 1313, and the second annular groove 122 is provided with a fourth inclined surface 123 corresponding to the first inclined surface 1315 at one end close to the second tube body 12, so that when the first clamping portion 1314 is received in the second annular groove 122, the first inclined surface 1315 is tightly fitted and connected with the fourth inclined surface 123.

[0042] In this embodiment, the end of the other end of the second tube 12 is sealed, wherein the side wall of the other side of the second tube 12 is spaced apart with a plurality of adsorption holes 124, and the adsorption holes 124 are in a strip shape and are arranged along the length direction of the second tube 12. It should be understood that the other end of the second tube 12 is used to be placed in the patient's oral cavity, and the end of the other end of the second tube 12 is sealed, so that the second tube 12 does not directly absorb the oral flesh, prevents blockage, and does not damage the oral flesh, and the plurality of adsorption holes 124 are spaced apart on the side wall of the other side of the second tube 12, so that the adsorption effect is better.

[0043] Further, the side wall of the other side of the second tube body 12 is provided with a plurality of grooves 125 arranged along the length direction of the second tube body 12, wherein the adsorption hole 124 is arranged in one end of the groove 125 away from the rotating part 13. It should be understood that the adsorption hole 124 is arranged in the groove 125 to prevent the occurrence of blockage.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A saliva suction tube with multi-angle turning, characterized in that: include: first tube body; A rotating part, one end of which is rotatably connected to one end of the first tube body; A second tube body, one end of which is rotatably connected to the other end of the rotating part; Wherein, the rotating part is formed by rotating the head and tail ends of a plurality of third tube bodies with the same tube diameter, and the third tube bodies are in an arc shape.

2. The multi-angle saliva suction tube according to claim 1, characterized in that: The outer diameters of the first tube body, the third tube body and the second tube body are all the same, wherein the first tube body and the third tube body, the second tube body and the third tube body, and two adjacent third tube bodies are connected by gap fitting.

3. The multi-angle saliva suction tube according to claim 1, characterized in that: One end of the third tube body is provided with a first connecting structure, the other end of the third tube body is provided with a second connecting structure rotatably connected to the first connecting structure at one end of the adjacent third tube body, one end of the first tube body is provided with a third connecting structure rotatably connected to the first connecting structure of the third tube body, and one end of the second tube body is provided with a fourth connecting structure rotatably connected to the second connecting structure of the third tube body.

4. The multi-angle saliva suction tube according to claim 3, characterized in that: The first connecting structure includes a first receiving groove which is arranged on the inner wall of one end of the third tube body and is connected to the inner hole of the third tube body, wherein a first annular clamping groove in the shape of a circular ring is provided at the bottom of the side wall of the first receiving groove, and the second connecting structure includes a first protruding portion which is arranged at the other end of the third tube body and extends outward, the first protruding portion is used to be received in the first receiving groove, and a first clamping portion which is used to clamp and rotate in the first annular clamping groove is provided at the end of the first protruding portion, the inner hole of the third tube body passes through the first protruding portion, and the first clamping portion is in the shape of a circular ring.

5. The multi-angle saliva suction tube according to claim 4, characterized in that: The aperture of the first receiving groove is larger than the aperture of the third tube body, the outer diameter of the first protrusion is equal to the aperture of the first receiving groove, and the outer diameter of the first clamping portion is smaller than the outer diameter of the third tube body.

6. The multi-angle saliva suction tube according to claim 4, characterized in that: A first inclined surface is disposed at the end of the first clamping portion away from the third tube body, and a second inclined surface corresponding to the first inclined surface is disposed at one end of the first annular clamping groove close to the third tube body.

7. The multi-angle saliva suction tube according to claim 4, characterized in that: The third connection structure includes a second protrusion disposed at one end of the first tube body and extending outward, the second protrusion being used to be received in the first receiving groove, wherein a second clamping portion disposed in the first annular clamping groove and used to be clamped and rotated is disposed at the end of the second protrusion, the inner hole of the first tube body passes through the second protrusion, and the second clamping portion is in a circular ring shape; The fourth connecting structure includes a second receiving groove arranged on the inner wall of one end of the second tube body and connected to the inner hole of the second tube body, the second receiving groove is used to receive the first protrusion, and the bottom of the side wall of the second receiving groove is provided with a second annular groove in a circular ring shape for clamping the first clamping part.

8. The multi-angle saliva suction tube according to claim 7, characterized in that: The outer diameter of the second protrusion is equal to the aperture of the first receiving groove, the outer diameter of the second clamping portion is smaller than the outer diameter of the first tube body, and the end of the second clamping portion away from the first tube body is provided with a third inclined surface corresponding to the second inclined surface; The aperture of the second receiving groove is equal to the outer diameter of the first protrusion, and the end of the second annular groove close to the second tube body is provided with a fourth inclined surface corresponding to the first inclined surface.

9. The multi-angle saliva suction tube according to claim 1, characterized in that: The end of the other end of the second tube is sealed, and a plurality of adsorption holes are arranged at intervals on the side wall of the other side of the second tube, wherein the adsorption holes are in the shape of long strips and are arranged along the length direction of the second tube.

10. The multi-angle saliva suction tube according to claim 9, characterized in that: A plurality of grooves are arranged at intervals on the side wall of the other side of the second tube body along the length direction of the second tube body, wherein the adsorption hole is arranged in one end of the groove away from the rotating part.

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