Air supply device for nasopharyngeal laryngoscopy

Abstract

The utility model 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. According to the utility model, the three-way tube is matched with the biopsy port clamping piece, so that the three-way tube is detachably connected with the biopsy port, when nasopharyngeal laryngoscopy is carried out, the three-way tube is connected with the biopsy port, and the air mixing valve is regulated and controlled to enable oxygen to reach a corresponding flow and inflate the tip part of the piriform nest, so that the mucous membrane is observed, and lesions are found; 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] The utility model relates to the technical field of medical instruments, in particular to an air supply device used for nasopharyngeal laryngoscope examination. Background Art

[0002] Nasopharyngeal endoscopes mainly use endoscopes to observe the conditions of the nasal cavity, oral cavity, nasopharynx, oropharynx, hypopharynx, and larynx. Doctors can perform biopsies or surgeries on the lesions through the biopsy channel, and the endoscope can realize image acquisition and video recording functions by connecting to an imaging workstation. When observing the piriform sinus and the esophageal entrance to the cervical esophagus, its special anatomical structure makes observation difficult. The method commonly used in clinical work at present is to observe mucosal lesions by manually inflating the syringe and having the patient cooperate with swallowing. However, inflation is inconvenient to operate, the oxygen content in the gas cannot be changed, and biopsy is not possible when manually inflating.

[0003] To this end, based on clinical experience, we designed this air supply device for nasopharyngeal and laryngoscope examinations. The device connects the three-way tube to the biopsy port of the endoscope through a clamping device. One end of the three-way tube is connected to the oxygen supply device, and the other end can be inserted with biopsy forceps for biopsy, realizing the function of inflating while performing biopsy; at the same time, by changing the oxygen flow rate, the size of the airflow can be adjusted; the external foot pedal control switch frees the doctor's other hand, making the operation more convenient. Utility Model Content

[0004] The purpose of the present invention is to provide an air supply device for nasopharyngeal laryngoscope examination to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An air supply device for nasopharyngeal laryngoscope examination includes an air supply assembly, a three-way pipe and a biopsy port connector. The lower end of the three-way pipe is connected to the biopsy port of an endoscope through the biopsy port connector. The upper end of the three-way pipe corresponding to the biopsy port is used to pass the biopsy forceps. The side end of the three-way pipe is connected to the air supply assembly. The air supply assembly is used to pass oxygen into the biopsy port through the three-way pipe, and the oxygen concentration is adjustable.

[0007] As a further preferred solution of the present invention: the gas supply assembly includes an oxygen cylinder, an air filter head and a gas mixing valve. The oxygen cylinder and the air filter head are connected to the two air inlets of the gas mixing valve through an oxygen delivery pipe and the air delivery pipe is connected to the two air inlets of the gas mixing valve respectively. The gas outlet of the gas mixing valve is connected to the side end pipe port of the three-way pipe through the gas supply pipe. Both the oxygen delivery pipe and the air delivery pipe are provided with air pumps.

[0008] As a further preferred solution of the present invention: the biopsy port clamping piece includes a U-shaped card plate, a sliding groove opening is provided at the upper end of the U-shaped card plate, a docking interface is provided on the front side of the lower end of the U-shaped card plate, and a limiting opening connected to the docking interface is provided on the rear side of the lower end of the U-shaped card plate. The width of the limiting opening is smaller than the width of the docking interface, and the docking interface and the limiting opening are correspondingly arranged on the lower side of the sliding groove opening. A connecting tube that passes through the sliding groove opening and can move along the sliding groove opening is provided in the sliding groove opening, and the upper end of the connecting tube is connected to the lower end of the tee pipe, and the lower end of the connecting tube is provided with a telescopic tube, the upper end of the telescopic tube is slidably arranged on the inside of the connecting tube, and the other end of the telescopic tube is connected to a pressure head located on the inside of the U-shaped card plate, and the lower end of the pressure head is provided with a clamping head communicated with the connecting tube, and a spring is provided between the connecting tube and the pressure head.

[0009] As a further preferred solution of the present invention: two clamping plates are symmetrically arranged on both sides of the chute opening on the connecting pipe, the diameter of the clamping plates is larger than the width of the chute opening, and the clamping plates are movably connected to the chute opening.

[0010] As a further preferred solution of the present invention: the spring is sleeved on the outside of the connecting pipe, and both ends of the spring are fixedly connected to the clamping plate and the pressure head respectively.

[0011] As a further preferred solution of the present invention: the air supply assembly also includes a main controller and a foot switch, and the main controller is electrically connected to the air pump and the foot switch respectively.

[0012] As a further preferred solution of the present invention: a humidification bottle is provided on the air supply pipe.

[0013] As a further preferred solution of the present invention: both the oxygen delivery pipe and the air delivery pipe are provided with solenoid valves electrically connected to the main controller.

[0014] As a further preferred solution of the present invention: a biopsy cap is provided at the upper end of the three-way pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model realizes a detachable connection between the three-way tube and the biopsy port through the cooperation of the three-way tube and the biopsy port clamping piece. When performing nasopharyngeal laryngoscope examination, the three-way tube can be connected to the biopsy port. By adjusting the gas mixing valve, the oxygen is made to reach a corresponding flow rate, and the tip of the piriform sinus is inflated, thereby realizing observation of the mucosa and discovery of lesions; the biopsy forceps is inserted into the endoscope biopsy channel through the three-way tube, and the foot switch is stepped on according to demand to realize biopsy while inflating, which is easy to operate and improves the efficiency of endoscopic clinical examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the air supply device used for nasopharyngeal laryngoscope examination according to the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the biopsy port connector and the three-way pipe after assembly. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the biopsy port connector and the three-way pipe after assembly. Figure 2 ;

[0020] Figure 4 This is a side view of the structure of the biopsy port connector and the tee pipe after assembly;

[0021] Figure 5 This is a schematic structural diagram of the biopsy port connector and the biopsy port after assembly.

[0022] In the figure: 1. Oxygen cylinder; 2. Oxygen delivery tube; 3. Air filter head; 4. Air delivery tube; 5. Mixing valve; 6. Humidifier bottle; 7. Air supply tube; 8. T-tube; 9. Biopsy port connector; 10. Biopsy cap; 11. Solenoid valve; 12. Air pump; 13. Main controller; 14. Foot switch; 15. U-shaped pallet; 16. Slide groove; 17. Connecting tube; 18. Pallet; 19. Pressure head; 20. Docking port; 21. Limit port; 22. Telescopic tube; 23. Spring; 24. Clamp; 25. Biopsy port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0024] See also Figure 1-5 This embodiment provides an air supply device for nasopharyngeal laryngoscope examination, including an air supply component, a three-way pipe 8 and a biopsy port connector 9. The lower end of the three-way pipe 8 is connected to the biopsy port 25 of the endoscope through the biopsy port connector 9. The upper end of the three-way pipe 8 corresponding to the biopsy port 25 is used to pass the biopsy forceps. The side end of the three-way pipe 8 is connected to the air supply component, and the air supply component is used to pass oxygen into the biopsy port 25 through the three-way pipe 8, and the oxygen concentration is adjustable.

[0025] Among them, such as Figure 1As shown, the gas supply assembly includes 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 to the two air inlets of the gas mixing valve 5 through the oxygen delivery tube 2 and the air delivery tube 4, respectively. The gas outlet of the gas mixing valve 5 is connected to the side end pipe port of the three-way pipe 8 through the gas supply tube 7. Preferably, according to clinical needs, a humidification bottle 6 can be provided on the gas supply tube 7, and an air pump 12 is provided on both the oxygen delivery tube 2 and the air delivery tube 4. Among them, 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 make the gas flow. It is a prior art and will not be described in detail in this application. At the same time, in order to further improve the air tightness and operability of the gas supply assembly, a solenoid valve 11 is provided on the oxygen delivery pipe 2 and the air delivery pipe 4. At the same time, a main controller 13 and a foot switch 14 are designed into the gas supply assembly, 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.

[0026] It should be noted that the mixing valve 5 is an existing conventional structure and can be obtained by customization. In actual application, in order to better control the concentration of oxygen in the supplied gas, the corresponding oxygen concentration indicator should be marked on the handle of the mixing valve 5. In this application, the oxygen cylinder 1 is preferably a pure oxygen cylinder to facilitate the introduction of pure oxygen during inspection.

[0027] like Figure 1-5 The cam 16 is provided with a plurality of holes 22 for locking the cam 16 against the bottom of the cam 16. The cam 16 is provided with a plurality of holes 22 for locking the cam 16. The cam 16 is provided with a plurality of holes 22 for locking the cam 16. The cam 16 is provided with a plurality of holes 22 for locking the cam 16. The cam 16 is provided with a plurality of holes 22 for locking the cam 16.

[0028] like Figure 2-3 As shown, in order to realize the movement of the connecting tube 17 on the slide groove mouth 16 and the assembly of the spring 23, two clamping plates 18 are symmetrically arranged on the connecting tube 17 and located on both sides of the slide groove mouth 16. The diameter of the clamping plates 18 is larger than the width of the slide groove mouth 16, and the clamping plates 18 are movably connected to the slide groove mouth 16; the spring 23 is sleeved on the outside of the connecting tube 17, and the two ends of the spring 23 are fixedly connected to the clamping plates 18 and the pressure head 19 respectively.

[0029] In addition, when biopsy is not required and only inflation is needed, the airtightness of the biopsy port 25 should be ensured, that is, the airtightness of the upper end of the tee pipe 8 should be ensured. A biopsy cap 10 should be provided at the upper end of the tee pipe 8. When biopsy is required, the biopsy cap 10 can be removed and the biopsy forceps can be inserted.

[0030] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and technical features of the present application. For those skilled in the art, solutions or features that belong to the prior art or common knowledge will not be described in detail in the above embodiments.

[0031] In addition, the technical solutions of the present application are not limited to the above-mentioned embodiments. Those skilled in the art should regard the specification as a whole. 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 supply device for nasopharyngeal laryngoscope examination, characterized in that: The invention comprises an air supply assembly, a three-way pipe (8) and a biopsy port clamp (9). The lower end of the three-way pipe (8) is connected to the biopsy port (25) of the endoscope through the biopsy port clamp (9). The upper end of the three-way pipe (8) corresponding to the biopsy port (25) is used to pass the biopsy forceps. The side end of the three-way pipe (8) is connected to the air supply assembly. The air supply assembly is used to pass oxygen into the biopsy port (25) through the three-way pipe (8), and the oxygen concentration is adjustable.

2. The air supply device for nasopharyngeal laryngoscope examination 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 to the two gas inlets of the gas mixing valve (5) through an oxygen delivery pipe (2) and an air delivery pipe (4), respectively. The gas outlet of the gas mixing valve (5) is connected to the side end pipe opening of the three-way pipe (8) through an air supply pipe (7). An air pump (12) is provided on both the oxygen delivery pipe (2) and the air delivery pipe (4).

3. The air supply device for nasopharyngeal laryngoscope examination according to claim 1, characterized in that: The biopsy port clamping member (9) includes a U-shaped card plate (15), a slide groove opening (16) is provided at the upper end of the U-shaped card plate (15), a docking port (20) is provided at the front side of the lower end of the U-shaped card plate (15), and a limiting port (21) is provided at the rear side of the lower end of the U-shaped card plate (15) and is connected to the docking port (20). The width of the limiting port (21) is smaller than the width of the docking port (20). The docking port (20) and the limiting port (21) are correspondingly arranged at the lower side of the slide groove opening (16). A slot is provided in the slide groove opening (16) that penetrates the slide groove opening (16) and can be A connecting tube (17) moves along the chute opening (16), the upper end of the connecting tube (17) is connected to the lower end of the three-way tube (8), the lower end of the connecting tube (17) is provided with a telescopic tube (22), the upper end of the telescopic tube (22) is slidably arranged on the inner side of the connecting tube (17), the other end of the telescopic tube (22) is connected to a pressure head (19) located on the inner side of the U-shaped clamping plate (15), the lower end of the pressure head (19) is provided with a clamping head (24) communicating with the connecting tube (17), and a spring (23) is provided between the connecting tube (17) and the pressure head (19).

4. The air supply device for nasopharyngeal laryngoscope examination according to claim 3, characterized in that: Two clamping plates (18) are symmetrically arranged on the connecting pipe (17) and are located on both sides of the chute opening (16). The diameter of the clamping plates (18) is larger than the width of the chute opening (16), and the clamping plates (18) are movably connected to the chute opening (16).

5. The air supply device for nasopharyngeal laryngoscope examination according to claim 4, characterized in that: The spring (23) is sleeved on the outside of the connecting tube (17), and both ends of the spring (23) are fixedly connected to the clamping plate (18) and the pressure head (19) respectively.

6. The air supply device for nasopharyngeal laryngoscope examination according to claim 2, characterized in that: The air supply assembly further comprises a main controller (13) and a foot switch (14), and the main controller (13) is electrically connected to the air pump (12) and the foot switch (14), respectively.

7. The air supply device for nasopharyngeal laryngoscope examination according to claim 2, characterized in that: A humidification bottle (6) is provided on the air supply pipe (7).

8. The air supply device for nasopharyngeal laryngoscope examination according to claim 6, characterized in that: The oxygen delivery pipe (2) and the air delivery pipe (4) are both provided with a solenoid valve (11) electrically connected to the main controller (13).

9. The air supply device for nasopharyngolaryngoscope examination according to claim 1, characterized in that: A biopsy cap (10) is provided at the upper end of the three-way pipe (8).

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