Air supply device for nasopharyngeal laryngoscopy

Abstract

The invention discloses an air supply device for nasopharyngeal laryngoscopy, and belongs to the technical field of medical instruments. Comprising an air supply assembly, a three-way pipe and a biopsy opening clamping piece, a lower end pipe opening of the three-way pipe is connected with a biopsy opening of an endoscope through the biopsy opening clamping piece, an upper end pipe opening, corresponding to the biopsy opening, of the three-way pipe is used for introducing biopsy forceps, a side end pipe opening of the three-way pipe is connected with the air supply assembly, and the air supply assembly is used for introducing oxygen into the biopsy opening through the three-way pipe. The three-way pipe and the biopsy opening are detachably connected through cooperation of the three-way pipe and the biopsy opening clamping piece, when nasopharyngeal laryngoscopy is carried out, the three-way pipe and the biopsy opening are connected, oxygen reaches the corresponding flow by adjusting and controlling the air mixing valve, the tip of the piriform nest is inflated, and therefore mucous membrane observation and lesion finding are achieved; the biopsy forceps extend into an endoscopic biopsy hole channel through the three-way pipe, inflation and biopsy are achieved while the foot switch is treaded according to requirements, operation is convenient, and the efficiency of endoscopic clinical examination is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically an air delivery device used during nasopharyngoscopy. Background Technology

[0002] Nasopharyngoscopy primarily uses an endoscope to observe the nasal cavity, oral cavity, nasopharynx, oropharynx, hypopharynx, and larynx. Doctors can perform biopsies or surgeries on lesions through a biopsy channel, and the endoscope can connect to an imaging workstation for image acquisition and video recording. However, observing the pyriform fossa and the esophageal inlet to the cervical esophagus is challenging due to their unique anatomical structure. Currently, the common clinical method involves manually inflating the esophagus with a syringe and having the patient swallow to observe mucosal lesions. However, this method is inconvenient, cannot alter the oxygen content of the gas, and prevents biopsies during manual inflation.

[0003] Therefore, based on clinical experience, we designed this air delivery device for nasopharyngoscopy. The device connects the three-way tube to the biopsy port of the endoscope through a snap-fit ​​device. One end of the three-way tube is connected to the oxygen supply device, and the other end can be inserted into the biopsy forceps for biopsy, realizing the function of simultaneous biopsy and air inflation. At the same time, by changing the oxygen flow rate, the airflow can be adjusted. The external foot pedal control switch frees up the doctor's other hand, making the operation more convenient. Summary of the Invention

[0004] The purpose of this invention is to provide an air delivery device for nasopharyngoscopy to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An air supply device for nasopharyngoscopy includes an air supply assembly, a three-way valve, and a biopsy port connector. The lower end of the three-way valve is connected to the biopsy port of the endoscope via the biopsy port connector. The upper end of the three-way valve, corresponding to the biopsy port, is used to insert biopsy forceps. The side end of the three-way valve is connected to the air supply assembly, which is used to supply oxygen into the biopsy port through the three-way valve, and the oxygen concentration is adjustable.

[0006] As a further preferred embodiment of the present invention: the gas supply assembly includes an oxygen cylinder, an air filter head, and a mixing valve. The oxygen cylinder and the air filter head are respectively connected to the two air inlets of the mixing valve through an oxygen delivery pipe and an air delivery pipe. The air outlet of the mixing valve is connected to the side end of a three-way pipe through a gas supply pipe. Both the oxygen delivery pipe and the air delivery pipe are equipped with air pumps.

[0007] As a further preferred embodiment of the present invention: the biopsy port clamping component includes a U-shaped clamping plate, the upper end of the U-shaped clamping plate having a sliding groove, the lower front side of the U-shaped clamping plate having a mating interface, and the lower rear side of the U-shaped clamping plate having a limiting port communicating with the mating interface. The width of the limiting port is smaller than the width of the mating interface. The mating interface and the limiting port are correspondingly arranged on the lower side of the sliding groove. A connecting pipe is provided inside the sliding groove and can move along the sliding groove. The upper end of the connecting pipe is connected to the lower end of the tee pipe. A telescopic pipe is provided at the lower end of the connecting pipe. The upper end of the telescopic pipe is slidably arranged inside the connecting pipe. The other end of the telescopic pipe is connected to a pressure head located inside the U-shaped clamping plate. A clamping head communicating with the connecting pipe is provided at the lower end of the pressure head. A spring is provided between the connecting pipe and the pressure head.

[0008] As a further preferred embodiment of the present invention: two clamping plates are symmetrically arranged on the connecting pipe on both sides of the slide opening, the diameter of the clamping plates is larger than the width of the slide opening, and the clamping plates are movably connected to the slide opening.

[0009] As a further preferred embodiment of the present invention: the spring is sleeved on the outside of the connecting tube, and the two ends of the spring are fixedly connected to the clamping plate and the pressure head respectively.

[0010] As a further preferred embodiment of the present invention, the air supply assembly also includes a main controller and a foot switch, wherein the main controller is electrically connected to the air pump and the foot switch respectively.

[0011] As a further preferred embodiment of the present invention, a humidification bottle is provided on the gas supply pipe.

[0012] As a further preferred embodiment of the present invention: both the oxygen delivery pipe and the air delivery pipe are equipped with solenoid valves that are electrically connected to the main controller.

[0013] As a further preferred embodiment of the present invention: a biopsy cap is provided at the upper end of the tee tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves a detachable connection between the three-way tube and the biopsy port through the cooperation of the three-way tube and the biopsy port connector. When performing nasopharyngoscopy, the three-way tube is connected to the biopsy port. By adjusting the gas mixing valve, oxygen is supplied at the appropriate flow rate to inflate the pyriform fossa apex, thereby enabling observation of the mucosa and detection of lesions. The biopsy forceps are inserted into the endoscope biopsy channel through the three-way tube, and the foot switch is stepped on as needed to perform biopsy while inflating the endoscope. The operation is convenient and improves the efficiency of clinical endoscopic examinations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air delivery device of the present invention used in nasopharyngoscopy. Figure 2 This is a schematic diagram of the three-dimensional structure of the biopsy port connector and the tee tube assembled according to the present invention. Figure 1; Figure 3 This is a schematic diagram of the three-dimensional structure of the biopsy port connector and the tee tube assembled according to the present invention. Figure 2 ; Figure 4 This is a side view of the biopsy port connector and the tee tube assembled according to the present invention. Figure 5 This is a schematic diagram of the structure of the biopsy port connector and the biopsy port after assembly.

[0016] In the diagram: 1. Oxygen cylinder; 2. Oxygen delivery pipe; 3. Air filter head; 4. Air delivery pipe; 5. Mixing valve; 6. Humidification bottle; 7. Gas supply pipe; 8. T-connector; 9. Biopsy port clamp; 10. Biopsy cap; 11. Solenoid valve; 12. Air pump; 13. Main controller; 14. Foot switch; 15. U-shaped clamp; 16. Slide groove; 17. Connecting pipe; 18. Clamp; 19. Pressure head; 20. Connecting interface; 21. Limit port; 22. Telescopic tube; 23. Spring; 24. Clamp; 25. Biopsy port. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0018] Please see Figure 1-5 This embodiment provides an air supply device for nasopharyngoscopy, including an air supply assembly, a three-way tube 8, and a biopsy port clamp 9. The lower end of the three-way tube 8 is connected to the biopsy port 25 of the endoscope through the biopsy port clamp 9. The upper end of the three-way tube 8 corresponding to the biopsy port 25 is used to insert biopsy forceps. The side end of the three-way tube 8 is connected to the air supply assembly, which is used to supply oxygen into the biopsy port 25 through the three-way tube 8, and the oxygen concentration is adjustable.

[0019] Among them, such as Figure 1As shown, the gas supply assembly includes an oxygen cylinder 1, an air filter head 3, and a mixing valve 5. The oxygen cylinder 1 and the air filter head 3 are connected to the two air inlets of the mixing valve 5 via an oxygen delivery pipe 2 and an air delivery pipe 4, respectively. The air outlet of the mixing valve 5 is connected to the side end of a three-way pipe 8 via a gas supply pipe 7. Preferably, according to clinical needs, a humidification bottle 6 can be installed on the gas supply pipe 7, and an air pump 12 can be installed on both the oxygen delivery pipe 2 and the air delivery pipe 4. The air filter head 3 and the air pump 12 are both existing conventional structures. The air filter head 3 is used to purify the air and can be customized and purchased according to medical needs. The air pump 12 is used to circulate the gas and is existing technology, which will not be described further in this application. Meanwhile, in order to further improve the airtightness and operability of the gas supply component, solenoid valves 11 are installed on both the oxygen delivery pipe 2 and the air delivery pipe 4. The main controller 13 and the foot switch 14 are designed into the gas supply component, so that the main controller 13 is electrically connected to the solenoid valve 11, the air pump 12 and the foot switch 14 respectively. By controlling the foot switch 14, the gas supply can be controlled.

[0020] It should be noted that the mixing valve 5 is a conventional structure that can be obtained by custom purchase. In practical applications, in order to better control the oxygen concentration in the supplied gas, the corresponding oxygen concentration index should be marked on the handle of the mixing valve 5. In this application, the oxygen cylinder 1 is preferably a pure oxygen cylinder, which makes it convenient to introduce pure oxygen during inspection.

[0021] like Figure 1-5 As shown, the biopsy port clamping component 9 includes a U-shaped clamping plate 15. A sliding groove 16 is provided at the upper end of the U-shaped clamping plate 15. A mating interface 20 is provided at the front side of the lower end of the U-shaped clamping plate 15. A limiting port 21 communicating with the mating interface 20 is provided at the rear side of the lower end of the U-shaped clamping plate 15. The width of the limiting port 21 is smaller than the width of the mating interface 20. The mating interface 20 and the limiting port 21 are respectively arranged on the lower side of the sliding groove 16. A connecting pipe 17 is provided inside the sliding groove 16 and can move along the sliding groove 16. The upper end of the connecting pipe 17 is connected to the lower end of the tee pipe 8. A telescopic pipe 22 is provided at the lower end of the connecting pipe 17. The upper end of the telescopic pipe 22 is slidably arranged inside the connecting pipe 17. The other end of the telescopic pipe 22 is connected to a pressure head 19 located inside the U-shaped clamping plate 15. A clamping head 24 communicating with the connecting pipe 17 is provided at the lower end of the pressure head 19. A spring 23 is provided between the connecting pipe 17 and the pressure head 19.

[0022] like Figure 2-3 As shown, in order to realize the movement of the connecting pipe 17 on the slide opening 16 and to realize the assembly of the spring 23, two clamping plates 18 are symmetrically arranged on the connecting pipe 17 on both sides of the slide opening 16. The diameter of the clamping plate 18 is larger than the width of the slide opening 16, and the clamping plate 18 is movably connected to the slide opening 16. The spring 23 is sleeved on the outside of the connecting pipe 17, and the two ends of the spring 23 are fixedly connected to the clamping plate 18 and the pressure head 19 respectively.

[0023] In addition, when only air inflatation is needed and biopsy is not required, the biopsy port 25 should be kept airtight, that is, the upper end of the three-way tube 8 should be kept airtight. A biopsy cap 10 should be installed at the upper end of the three-way tube 8. When a biopsy is needed, the biopsy cap 10 should be removed and the biopsy forceps should be inserted.

[0024] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0025] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An air delivery device for use in nasopharyngoscopy, characterized in that, The application relates to a gas supply assembly, a three-way pipe (8) and a biopsy port clamping piece (9), the lower end pipe opening of the three-way pipe (8) is connected with a biopsy port (25) of an endoscope through the biopsy port clamping piece (9), the upper end pipe opening of the three-way pipe (8) corresponding to the biopsy port (25) is used for leading in biopsy forceps, the side end pipe opening of the three-way pipe (8) is connected with the gas supply assembly, and the gas supply assembly is used for leading in oxygen into the biopsy port (25) through the three-way pipe (8) and the oxygen concentration can be adjusted.

2. The gas delivery device for nasopharyngolaryngoscopy according to claim 1, characterized in that The gas supply assembly comprises an oxygen cylinder (1), an air filter head (3) and a gas mixing valve (5), the oxygen cylinder (1) and the air filter head (3) are connected with two air inlets of the gas mixing valve (5) through an oxygen conveying pipe (2) and an air conveying pipe (4) respectively, an air outlet of the gas mixing valve (5) is connected with the side end pipe opening of the three-way pipe (8) through a gas supply pipe (7), and a gas pump (12) is arranged on the oxygen conveying pipe (2) and the air conveying pipe (4).

3. The gas delivery device for nasopharyngoscopy according to claim 1, characterized in that, The biopsy port clamping piece (9) comprises a U-shaped clamping plate (15), a sliding groove opening (16) is formed in the upper end of the U-shaped clamping plate (15), a butt joint opening (20) is formed in the front lower end of the U-shaped clamping plate (15), a limiting opening (21) in communication with the butt joint opening (20) is formed in the rear lower end of the U-shaped clamping plate (15), the limiting opening (21) is smaller than the butt joint opening (20) in width, the butt joint opening (20) and the limiting opening (21) are arranged on the lower side of the sliding groove opening (16), a connecting pipe (17) penetrating through the sliding groove opening (16) and movable along the sliding groove opening (16) is arranged in the sliding groove opening (16), the upper end of the connecting pipe (17) is connected with the lower end pipe opening of the three-way pipe (8), a telescopic pipe (22) is arranged at the lower end of the connecting pipe (17), the upper end of the telescopic pipe (22) is slidably arranged on the inner side of the connecting pipe (17), the other end of the telescopic pipe (22) is connected with a pressure head (19) arranged on the inner side of the U-shaped clamping plate (15), a clamping head (24) in communication with the connecting pipe (17) is arranged at the lower end of the pressure head (19), and a spring (23) is arranged between the connecting pipe (17) and the pressure head (19).

4. The gas delivery device for nasopharyngoscopy according to claim 3, characterized in that Two clamping plates (18) are symmetrically arranged on the connecting pipe (17) and located on the two sides of the sliding groove opening (16), the clamping plates (18) are larger than the sliding groove opening (16) in diameter, and the clamping plates (18) are movably connected with the sliding groove opening (16).

5. The gas delivery device for nasopharyngoscopy according to claim 4, characterized in that The spring (23) is arranged on the outer side of the connecting pipe (17), and the two ends of the spring (23) are fixedly connected with the clamping plates (18) and the pressure head (19) respectively.

6. The gas delivery device for nasopharyngoscopy according to claim 2, characterized in that The gas supply assembly further comprises a main controller (13) and a foot switch (14), and the main controller (13) is electrically connected with the gas pump (12) and the foot switch (14) respectively.

7. The gas delivery device for use in nasopharyngoscopy according to claim 2, characterized in that A humidification bottle (6) is arranged on the gas supply pipe (7).

8. The gas delivery device for use in nasopharyngoscopy according to claim 6, characterized in that The oxygen conveying pipe (2) and the air conveying pipe (4) are provided with electromagnetic valves (11) electrically connected with the main controller (13).

9. The gas delivery device for use in nasopharyngoscopy according to claim 1, characterized in that The upper end pipe opening of the three-way pipe (8) is provided with a biopsy cap (10).

Images