Nasal cavity suction tube

Abstract

The utility model relates to the technical field of medical instruments, in particular to a nasal cavity suction tube which comprises an extension tube, one end of the extension tube is in threaded connection with a fixed tube, one end, far away from the extension tube, of the fixed tube is in threaded connection with a bent tube, and first suction holes which are circularly distributed at equal intervals are formed in the circumferential outer wall of the bent tube; an anti-backflow assembly is arranged in the extension pipe, a spiral blade is fixedly connected to the circumferential inner wall of the fixed pipe, and a suction head is fixedly connected to the end, away from the fixed pipe, of the bent pipe. According to the nasal cavity aspirator, due to the fact that the bent pipe extends into the nasal cavity of a patient, the nasal cavity aspirator can be better attached to the nasal cavity of the patient, foreign matter in the nasal cavity of the patient can be rapidly sucked out, and one end of the bent pipe is provided with four sets of first suction holes and one set of second suction holes so that multi-hole suction can be conducted on the patient; the situation that a group of suction holes are blocked when being adsorbed to the surface of a soft and easily-deformed mucous membrane is avoided, and the circulation of the whole suction tube is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a nasal suction tube. Background Art

[0002] In the clinical treatment of nose bleeding and nasal sinus surgery, blood needs to be sucked out in time so as to see the bleeding site clearly and give treatment. When sucking out blood, a suction tube is generally used to suck out the blood. At present, the commonly used suction tube is a suction tube body with a rear end connected to a negative pressure suction device.

[0003] At present, most of the existing nasal suction tubes use a group of single holes at the end for suction. The end is very easy to be adsorbed to the soft and easily deformable mucosal surface in the nasal cavity and block the tube opening. Due to the narrow field of view of endoscopic nasal surgery, the assistant cannot see the tube opening when assisting, resulting in poor suction effect. At the same time, the suction force near the tube opening is large during single-hole suction, which is easy to damage the mucosa. When there is a lot of blood in the nasal cavity, the single-hole suction effect is poor. Therefore, a nasal suction tube is urgently needed to solve the above problems. Utility Model Content

[0004] Based on the deficiencies in the prior art mentioned in the above background technology, the utility model provides a nasal suction tube.

[0005] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A nasal suction tube, comprising an extension tube, one end of the extension tube being threadedly connected to a fixed tube, one end of the fixed tube being threadedly connected to a bent tube away from the extension tube, and a circumferential outer wall of the bent tube being provided with first suction holes distributed in a circle at equal distances;

[0007] A backflow prevention component is arranged inside the extension tube.

[0008] As a further solution of the utility model: a spiral blade is fixedly connected to the circumferential inner wall of the fixed tube.

[0009] As a further solution of the utility model: one end of the curved pipe away from the fixed pipe is fixedly connected with a suction head, one end of the suction head is provided with a second suction hole, and one end of the suction head is a curved surface structure.

[0010] As a further solution of the utility model: a buffer tube is provided at one end of the extension tube, and a connector is fixedly connected to one end of the buffer tube.

[0011] As a further solution of the utility model: the backflow prevention assembly includes a thin plate arranged inside the extension tube, one side of the thin plate is provided with grooves, and the number of the grooves is two groups;

[0012] A fixing column is fixedly connected to an inner wall of one side of the groove, one end of the fixing column is rotatably connected to a rotating column, and one end of the rotating column away from the fixing column is fixedly connected to a connecting plate;

[0013] A second spring is fixedly linked to the outer wall of one side of the connecting plate, and a positioning block is fixedly connected to one end of the second spring away from the connecting plate. The circumferential outer wall of the positioning block is tightly attached to the circumferential inner wall of the extension tube.

[0014] As a further solution of the utility model: a first spring is fixedly connected to an outer wall of one side of the thin plate, and an end of the first spring away from the thin plate is fixedly connected to a vertical plate.

[0015] As a further solution of the utility model: a sliding rod is fixedly connected to the top outer wall of the vertical plate, a sliding groove is provided on the circumferential inner wall of the extension tube, and the sliding rod cooperates with the sliding groove.

[0016] After adopting the above structure, the utility model has the following advantages compared with the prior art:

[0017] In the utility model, since the tube extending into the patient's nasal cavity is a curved tube, it can better fit the patient's nasal cavity and improve the rapid suction of foreign matter in the patient's nasal cavity. One end of the curved tube is provided with four groups of first suction holes and one group of second suction holes, which can perform multi-hole suction on the patient and avoid the situation where one group of suction holes is clogged by adsorbing to the soft and easily deformable mucosal surface, thereby ensuring the fluidity of the entire suction tube.

[0018] In the utility model, by providing an anti-backflow component, when it is necessary to suction foreign objects inside the patient's nasal cavity, negative pressure suction will be generated inside the extension tube, so that the thin plate can be rotated and opened through the rotating column, so that the foreign objects in the nasal cavity can be discharged from the extension tube. When the medical staff stops suctioning, the stretched first spring will immediately restore the deformation to reset the thin plate, thereby avoiding the backflow of foreign objects remaining in the extension tube. At the same time, the entire anti-backflow component is installed through the sliding rod from the top of the sliding groove, and the second spring will always press the positioning block against the inner wall of the extension tube, so as to realize the rapid installation and fastening of the anti-backflow component, meeting the use needs of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the extension tube of the utility model.

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 This is a schematic diagram of the structure of the backflow prevention component of the utility model.

[0023] In the figure: 1. extension tube; 2. buffer tube; 3. connecting head; 4. fixed tube; 5. bent tube; 6. first suction hole; 7. suction head; 8. spiral blade; 9. second suction hole; 10. slide groove; 11. slide rod; 12. vertical plate; 13. first spring; 14. thin plate; 15. positioning block; 16. second spring; 17. connecting plate; 18. groove; 19. rotating column; 20. fixed column. DETAILED DESCRIPTION

[0024] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0027] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0028] See also Figures 1 to 4 In an embodiment of the utility model, a nasal suction tube includes an extension tube 1, one end of the extension tube 1 is threadedly connected to a fixed tube 4, one end of the fixed tube 4 away from the extension tube 1 is threadedly connected to a curved tube 5, and the outer wall of the curved tube 5 is provided with first suction holes 6 distributed in a circular shape at equal distances;

[0029] A backflow prevention component is arranged inside the extension tube 1 .

[0030] Preferably, the circumferential inner wall of the fixed tube 4 is fixedly connected with a spiral blade 8, which can make the blood and foreign matter sucked into the fixed tube 4 form a vortex, thereby accelerating the attraction of the blood and foreign matter and avoiding blockage of the blood and foreign matter at the end of the curved tube 5.

[0031] Preferably, one end of the curved tube 5 away from the fixed tube 4 is fixedly connected to a suction head 7, and a second suction hole 9 is provided at one end of the suction head 7. One end of the suction head 7 is an arc surface structure. Since the curved tube 5 is extended into the patient's nasal cavity, it can better fit the patient's nasal cavity and improve the rapid suction of foreign matter in the patient's nasal cavity. One end of the curved tube 5 is provided with four groups of first suction holes 6 and one group of second suction holes 9, which can perform multi-porous suction on the patient and avoid the situation where a group of suction holes is blocked by adsorbing to the soft and easily deformable mucosal surface, thereby ensuring the fluidity of the entire suction tube.

[0032] Preferably, a buffer tube 2 is provided at one end of the extension tube 1 , and a connector 3 is fixedly connected to one end of the buffer tube 2 .

[0033] Preferably, the backflow prevention assembly includes a thin plate 14 disposed inside the extension tube 1, and a groove 18 is formed on one side of the thin plate 14, and the number of the grooves 18 is two groups;

[0034] A fixing column 20 is fixedly connected to the inner wall of one side of the groove 18, one end of the fixing column 20 is rotatably connected to a rotating column 19, and one end of the rotating column 19 away from the fixing column 20 is fixedly connected to a connecting plate 17;

[0035] A second spring 16 is fixed to the outer wall of one side of the connecting plate 17, and a positioning block 15 is fixedly connected to one end of the second spring 16 away from the connecting plate 17. The circumferential outer wall of the positioning block 15 is in close contact with the circumferential inner wall of the extension tube 1. When it is necessary to attract foreign matter from the patient's nasal cavity, negative pressure suction will be generated inside the extension tube 1, so that the thin plate 14 can be rotated and opened through the rotating column 19, so that foreign matter in the nasal cavity can be discharged from the extension tube 1.

[0036] Preferably, a first spring 13 is fixedly connected to an outer wall of one side of the thin plate 14 , and an end of the first spring 13 away from the thin plate 14 is fixedly connected to the vertical plate 12 .

[0037] Preferably, the top outer wall of the vertical plate 12 is fixedly connected with a slide rod 11, and the circumferential inner wall of the extension tube 1 is provided with a slide groove 10, and the slide rod 11 cooperates with the slide groove 10. When the medical staff stops suction, the stretched first spring 13 will immediately restore the deformation to reset the thin plate 14, thereby avoiding the backflow of foreign matter remaining in the extension tube 1. At the same time, the entire anti-backflow assembly is moved from the top of the slide groove 10 through the slide rod 11 during the installation process, and the second spring 16 will always press the positioning block 15 against the inner wall of the extension tube 1, so as to realize the rapid installation and fastening of the anti-backflow assembly, meeting the use needs of medical staff.

[0038] Working principle: Since the curved tube 5 is inserted into the patient's nasal cavity, it can better fit the patient's nasal cavity and improve the rapid suction of foreign matter in the patient's nasal cavity. One end of the curved tube 5 is provided with four groups of first suction holes 6 and one group of second suction holes 9, which can perform multi-hole suction on the patient and avoid the situation where one group of suction holes is clogged by being adsorbed to the soft and easily deformable mucosal surface, thereby ensuring the fluidity of the entire suction tube. When it is necessary to suction foreign matter in the patient's nasal cavity, negative pressure suction will be generated inside the extension tube 1, so that the thin plate 14 can pass through. The rotating column 19 rotates and opens, so that foreign matter in the nasal cavity can be discharged from the extension tube 1. When the medical staff stops suctioning, the stretched first spring 13 will immediately restore its deformation to reset the thin plate 14, thereby avoiding the backflow of foreign matter remaining in the extension tube 1. At the same time, the entire anti-backflow assembly is moved from the top of the slide groove 10 through the slide rod 11 during the installation process, and the second spring 16 will always press the positioning block 15 against the inner wall of the extension tube 1, so as to realize the rapid installation and fastening of the anti-backflow assembly, meeting the use needs of medical staff.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A nasal suction tube, comprising an extension tube (1), characterized in that: One end of the extension tube (1) is threadedly connected to a fixed tube (4), and one end of the fixed tube (4) away from the extension tube (1) is threadedly connected to a bent tube (5), and the outer circumferential wall of the bent tube (5) is provided with first suction holes (6) distributed in a circular shape at equal distances; A backflow prevention component is arranged inside the extension tube (1).

2. A nasal suction tube according to claim 1, characterized in that: The circumferential inner wall of the fixed tube (4) is fixedly connected with a spiral blade (8).

3. A nasal suction tube according to claim 1, characterized in that: One end of the curved pipe (5) away from the fixed pipe (4) is fixedly connected to a suction head (7), one end of the suction head (7) is provided with a second suction hole (9), and one end of the suction head (7) is a curved surface structure.

4. A nasal suction tube according to claim 1, characterized in that: A buffer tube (2) is provided at one end of the extension tube (1), and a connector (3) is fixedly connected to one end of the buffer tube (2).

5. A nasal suction tube according to claim 1, characterized in that: The backflow prevention assembly comprises a thin plate (14) arranged inside the extension tube (1), one side of the thin plate (14) is provided with grooves (18), and the number of the grooves (18) is two groups; A fixing column (20) is fixedly connected to an inner wall of one side of the groove (18); one end of the fixing column (20) is rotatably connected to a rotating column (19); and one end of the rotating column (19) away from the fixing column (20) is fixedly connected to a connecting plate (17); A second spring (16) is fixedly connected to the outer wall of one side of the connecting plate (17); one end of the second spring (16) away from the connecting plate (17) is fixedly connected to a positioning block (15); the circumferential outer wall of the positioning block (15) is tightly attached to the circumferential inner wall of the extension tube (1).

6. A nasal suction tube according to claim 5, characterized in that: A first spring (13) is fixedly connected to an outer wall of one side of the thin plate (14), and an end of the first spring (13) away from the thin plate (14) is fixedly connected to a vertical plate (12).

7. A nasal suction tube according to claim 6, characterized in that: The top outer wall of the vertical plate (12) is fixedly connected with a slide rod (11), the circumferential inner wall of the extension tube (1) is provided with a slide groove (10), and the slide rod (11) cooperates with the slide groove (10).

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