Nasal catheter suitable for bronchoscope

Abstract

The utility model provides a nasal catheter suitable for a bronchoscope, relates to the technical field of medical instruments, and aims to solve the technical problems that in the prior art, a nasal catheter easily affects bronchoscope examination, and the difficulty of bronchoscope examination is increased. A nasal catheter suitable for a bronchoscope comprises a catheter body, a first nasal plug tube and a second nasal plug tube, the side wall of the catheter body is connected with the first nasal plug tube and the second nasal plug tube, the second nasal plug tube comprises a connecting part, a limiting part and a nasal plug part which are coaxially arranged, and the two ends of the connecting part are connected with the side wall of the catheter body and the limiting part respectively. The end, away from the connecting part, of the limiting part is connected with a nose plug part, the diameter of the limiting part is larger than that of the nose plug part, the limiting part is used for abutting against the end face of the outer edge of a nostril, the connecting part is made of a telescopic threaded pipe, the connecting part, the limiting part and the nose plug part are of hollow tubular structures and communicate with one another, and the connecting part communicates with the pipe body. The tube body is connected with a fixing assembly used for fixing the second nasal plug tube.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a nasal catheter suitable for a bronchoscope. Background Art

[0002] Bronchoscopes are suitable for observation of lesions in lobes, segments and subsegments of bronchus, biopsy sampling, bacteriology, cytology, and can be used with TV systems for photography, teaching and dynamic recording. When patients undergoing bronchoscopic anesthesia undergo an examination, the bronchoscope needs to be inserted from one of the nostrils. At the same time, anesthetized patients often have a nasal cannula connected to their noses and oxygenated by an oxygen therapy device, and the current nasal cannula is generally equipped with two nasal tubes. Therefore, when performing a bronchoscopic examination, the bronchoscope is generally inserted while the nasal tube is inserted into the nostril, or one of the nasal tubes is pulled out and then the bronchoscope is inserted. In the former method, the nasal tube in the nostril is easy to affect the insertion of the bronchoscope, and because the nasal tube and bronchoscope will occupy a large space, causing discomfort to the patient; in the latter method, the pulled-out nasal tube is still near the patient's nostrils, which will also affect the insertion of the bronchoscope and increase the difficulty of bronchoscopic examination. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a nasal catheter suitable for bronchoscope, so as to solve the technical problem that the nasal catheter in the prior art easily affects the bronchoscopic examination and increases the difficulty of the bronchoscopic examination.

[0004] In order to solve the above technical problems, the utility model provides a nasal catheter suitable for bronchoscope, including a tube body, a first nasal obstruction tube and a second nasal obstruction tube, the side wall of the tube body is connected to the first nasal obstruction tube and the second nasal obstruction tube, the second nasal obstruction tube includes a connecting part, a limiting part and a nasal obstruction part which are coaxially arranged, the two ends of the connecting part are respectively connected to the side wall of the tube body and the limiting part, one end of the limiting part which is on the limiting part and away from the connecting part is connected to the nasal obstruction part, the diameter of the limiting part is larger than the diameter of the nasal obstruction part and the limiting part is used to abut against the end face of the outer edge of the nostril, the connecting part is made of a retractable threaded tube, the connecting part, the limiting part and the nasal obstruction part are all hollow tubular structures and are interconnected, the connecting part is connected to the tube body, and a fixing component for fixing the second nasal obstruction tube is connected to the tube body.

[0005] After adopting the above structure, the utility model has the following advantages for a nasal catheter suitable for bronchoscope: the first nasal tube and the second nasal tube are respectively inserted into the two nostrils of the patient to supply oxygen; when performing bronchoscopic examination, the second nasal tube is pulled out from the nostrils; since the connecting portion of the second nasal tube is made of a retractable threaded tube, the second nasal tube can be stretched and easily deformed and fixed after being pulled out; and the second nasal tube is fixed by a fixing assembly so that the second nasal tube can be kept away from the patient's nostrils to avoid affecting the bronchoscope entering the patient's nostrils; meanwhile, the second nasal tube, which is easy to deform, is not easy to affect the position of the first nasal tube after bending; after completing the bronchoscopic examination, the second nasal tube is shortened and reinserted into the patient's nostrils; since the length change of the second nasal tube causes the length inserted into the patient's nostrils to be uncertain, the limiting portion is used as a positioning reference to keep the length of the second nasal tube inserted into the nostrils uniform, which is convenient for use.

[0006] As an improvement, the first nasal tube and the second nasal tube are both arranged near the end of the tube body and the second nasal tube is closer to the end of the tube body than the first nasal tube. The fixing component includes a limit block arranged at the end of the tube body, and a through hole is provided on the limit block. The through hole forms an opening on the limit block, and the diameter of the through hole is smaller than the diameter of the limiting portion and larger than the diameter of the connecting portion, and the width of the opening is smaller than the diameter of the connecting portion. With this structure, the connecting portion of the second nasal tube undergoes a slight deformation from the opening and is inserted into the through hole. The limitation of the opening width prevents the connecting portion from escaping from the opening, and the presence of the limit portion can also prevent the connecting portion from escaping from the through hole along the axial direction of the through hole.

[0007] As an improvement, the utility model also includes a fixing belt, one end of which is connected to the middle of the tube body, and the other end of the fixing belt is connected to the end of the tube body; with this structure, the nasal catheter is connected to the patient's head or neck using the fixing belt, thereby improving the stability of the connection between the nasal catheter and the patient.

[0008] As an improvement, the fixing belt is an elastic belt; this structure is adopted to facilitate adaptation to different patients and improve connection stability.

[0009] As an improvement, a Japanese-shaped buckle is connected to the fixing belt; this structure makes it easy to adjust the length of the fixing belt to suit different patients and improves the connection stability.

[0010] As an improvement, a sponge pad is connected to the outer peripheral wall of the first nasal tube; with this structure, since there is a situation where only the first nasal tube is inserted into the patient's nostril, the sponge pad can improve the stability of the connection between the nasal catheter and the patient.

[0011] As an improvement, the utility model also includes a plug head, which is detachably connected to the nasal plug part; with this structure, the plug head is used to block the second nasal plug tube when it is not in use, thereby avoiding waste of oxygen.

[0012] As an improvement, the middle part of the plug head is connected with an annular protrusion along the circumferential direction; this structure can prevent the plug head from being over-inserted into the nasal plug part, causing difficulty in removal.

[0013] As an improvement, the plug is connected to the pipe body through a connecting belt; this structure prevents the plug from being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure when the second nasal congestion tube in the present invention is not connected to the fixing component.

[0015] Figure 2 It is a schematic diagram of the overall structure when the second nasal congestion tube is connected to the fixing component in the utility model.

[0016] Figure 3 It is a schematic diagram of the connection structure between the connecting part and the fixing component in the utility model.

[0017] Figure numerals: 1. tube body; 2. first nasal congestion tube; 3. second nasal congestion tube; 31. connecting part; 32. limiting part; 33. nasal congestion part; 4. fixing component; 5. through hole; 6. opening; 7. fixing belt; 8. Japanese buckle; 9. sponge pad; 10. plug head; 11. annular convex part; 12. connecting belt. DETAILED DESCRIPTION

[0018] The utility model is described in detail below with reference to the accompanying drawings. A nasal catheter suitable for bronchoscope is described in detail.

[0019] like Figures 1 to 3 As shown, a nasal catheter suitable for bronchoscope includes a tube body 1, a first nasal tube 2 and a second nasal tube 3. The side wall of the tube body 1 is connected to the first nasal tube 2 and the second nasal tube 3. The first nasal tube 2 and the second nasal tube 3 have the same length when in use and are the same as the length of the nasal tube in the prior art. When in use, part of the tube body 1 is still placed on the upper lip of the patient. Figure 1 As shown, the second nasal obstruction tube 3 includes a coaxially arranged connecting portion 31, a limiting portion 32 and a nasal obstruction portion 33, the two ends of the connecting portion 31 are respectively connected to the side wall of the tube body 1 and the limiting portion 32, one end of the limiting portion 32 and away from the connecting portion 31 is connected to the nasal obstruction portion 33, the diameter of the limiting portion 32 is larger than the diameter of the nasal obstruction portion 33 and the limiting portion 32 is used to abut against the end face of the outer edge of the nostril, the connecting portion 31 is made of a telescopic threaded tube, the specific structure of the telescopic threaded tube is the prior art and is not repeated here; the connecting portion 31, the limiting portion 32 and the nasal obstruction portion 33 are all hollow tubular structures and are interconnected, the connecting portion 31 is connected to the tube body 1, the first nasal obstruction tube 2 is also connected to the tube body 1, the tube body 1 is connected to the oxygen therapy device, oxygen is sent out from the first nasal obstruction tube 2 through the tube body 1, and is also sent out from the connecting portion 31, the limiting portion 32 and the nasal obstruction portion 33.

[0020] like Figure 1 and Figure 2 As shown, the tube body 1 is connected with a fixing assembly 4 for fixing the second nasal tube 3. The first nasal tube 2 and the second nasal tube 3 are both arranged near the end of the tube body 1, and the second nasal tube 3 is closer to the end of the tube body 1 than the first nasal tube 2. Figure 1 and Figure 2 As shown in , the second nasal tube 3 is located on the right side of the first nasal tube 2; the fixing assembly 4 includes a stopper block provided at the end of the tube body 1, and a through hole 5 is provided on the stopper block. The axial direction of the through hole 5 is arranged along the radial direction of the tube body 1, and the through hole 5 forms an opening 6 on the stopper block, specifically, the opening 6 is formed on the right side of the stopper block, the diameter of the through hole 5 is smaller than the diameter of the stopper portion 32 and larger than the diameter of the connecting portion 31, and the width of the opening 6 is smaller than the diameter of the connecting portion 31; as shown in Figure 2 As shown, after stretching the connecting portion 31, the second nasal obstruction tube 3 is bent to the right, and the connecting portion 31 is elastically deformed from the opening 6 and inserted into the through hole 5. At this time, the limiting portion 32 and the nasal obstruction portion 33 are located below the limiting block; when taking out the second nasal obstruction tube 3, the connecting portion 31 is also elastically deformed and taken out from the opening 6.

[0021] like Figure 1 and Figure 2 As shown, the utility model also includes a fixing belt 7, one end of which is connected to the middle part of the tube body 1, and the other end of the fixing belt 7 is connected to the end of the tube body 1; and the fixing belt 7 in this embodiment is an elastic belt, and a Japanese-shaped buckle 8 is connected to the fixing belt 7. The specific structure and use of the Japanese-shaped buckle 8 are all existing technologies and will not be repeated here.

[0022] like Figure 1 and Figure 2 As shown, a sponge pad 9 is connected to the outer peripheral wall of the first nasal plug tube 2, specifically, it is arranged on the outer peripheral wall of the upper part of the first nasal plug tube 2. In addition, the utility model also includes a plug head 10, which is detachably connected to the nasal plug part 33, and a ring convex part 11 is connected to the middle part of the plug head 10 along the circumferential direction. The plug head 10 is connected to the tube body 1 through a connecting belt 12.

[0023] In the utility model, the first nasal tube 2 and the second nasal tube 3 are respectively inserted into the two nostrils of the patient for oxygen supply. When performing bronchoscopy, the second nasal tube 3 is pulled out from the nostrils. Since the connecting portion 31 of the second nasal tube 3 is made of a retractable threaded tube, the second nasal tube 3 after being pulled out can be stretched and easily deformed and fixed. The second nasal tube 3 is fixed by the fixing component 4 so that the second nasal tube 3 can be kept away from the patient's nostrils to avoid affecting the bronchoscope from entering the patient's nostrils. At the same time, the second nasal tube 3, which is easy to deform, is not easy to affect the position of the first nasal tube 2 after bending. Specifically, the length of the nasal tube in the prior art is The lengths of the two nasal tubes are relatively short, so even if one of the nasal tubes is taken out of the patient's nostril, the nasal tube is still located near the nose. The disturbance caused by other actions during the insertion of the bronchoscope or the examination is likely to cause the nasal tube to re-enter the nostril, and the deformation caused by the nasal tube after being pulled out is very likely to cause the remaining nasal tube inserted in the patient's nostril to be affected and fall out. The utility model can solve the above-mentioned problem. The second nasal tube 3 after being stretched is easy to deform and is fixed by the fixing component 4. It is not easy to return to the patient's nostril due to disturbance, and the deformation caused by the second nasal tube 3 will not affect the connection between the first nasal tube 2 and the patient's nostril. In addition, after the bronchoscope examination is completed, the second nasal tube 3 is shortened and reinserted into the patient's nostril. Due to the change in the length of the second nasal tube 3, the length inserted into the patient's nostril is uncertain. The limiting part 32 is used as a positioning reference to keep the length of the second nasal tube 3 inserted into the nostril uniform, which is convenient for use.

[0024] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A nasal catheter suitable for bronchoscope, characterized in that: The invention comprises a tube body (1), a first nasal obstruction tube (2) and a second nasal obstruction tube (3); the side wall of the tube body (1) is connected to the first nasal obstruction tube (2) and the second nasal obstruction tube (3); the second nasal obstruction tube (3) comprises a connecting portion (31), a limiting portion (32) and a nasal obstruction portion (33) which are coaxially arranged; two ends of the connecting portion (31) are respectively connected to the side wall of the tube body (1) and the limiting portion (32); one end of the limiting portion (32) which is away from the connecting portion (31) is connected to the nasal obstruction portion (33); (33), the diameter of the limiting portion (32) is greater than the diameter of the nasal obstruction portion (33) and the limiting portion (32) is used to abut against the outer edge end surface of the nostril, the connecting portion (31) is made of a telescopic threaded tube, the connecting portion (31), the limiting portion (32) and the nasal obstruction portion (33) are all hollow tubular structures and are interconnected, the connecting portion (31) is connected to the tube body (1), and the tube body (1) is connected to a fixing component (4) for fixing the second nasal obstruction tube (3).

2. The nasal catheter suitable for bronchoscope according to claim 1, characterized in that: The first nasal tube (2) and the second nasal tube (3) are both arranged close to the end of the tube body (1), and the second nasal tube (3) is closer to the end of the tube body (1) than the first nasal tube (2); the fixing component (4) comprises a limit block arranged at the end of the tube body (1); the limit block is provided with a through hole (5); the through hole (5) forms an opening (6) on the limit block; the diameter of the through hole (5) is smaller than the diameter of the limit portion (32) and larger than the diameter of the connecting portion (31); the width of the opening (6) is smaller than the diameter of the connecting portion (31).

3. The nasal catheter suitable for bronchoscope according to claim 2, characterized in that: It also comprises a fixing belt (7), one end of which is connected to the middle part of the tube body (1), and the other end of which is connected to the end of the tube body (1).

4. The nasal catheter suitable for bronchoscope according to claim 3, characterized in that: The fixing belt (7) is an elastic belt.

5. The nasal catheter suitable for bronchoscope according to claim 3, characterized in that: The fixing belt (7) is connected with a Japanese-shaped buckle (8).

6. The nasal catheter suitable for bronchoscope according to claim 1, characterized in that: A sponge pad (9) is connected to the outer peripheral wall of the first nasal congestion tube (2).

7. The nasal catheter suitable for bronchoscope according to claim 1, characterized in that: It also includes a plug head (10), and the plug head (10) is detachably connected to the nasal plug part (33).

8. The nasal catheter suitable for bronchoscope according to claim 7, characterized in that: The middle part of the plug (10) is connected with an annular protrusion (11) along the circumferential direction.

9. The nasal catheter suitable for bronchoscope according to claim 7, characterized in that: The plug (10) is connected to the pipe body (1) via a connecting belt (12).

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