Mist spray guide tube for bronchoscopy

Abstract

The utility model provides a mist spraying guide pipe for bronchoscopy, relate to medical instrument technical field, to solve the technical problem of easy damage glottis of patient, anesthesia medicine is not easy to absorb in prior art when bronchoscopy, a mist spraying guide pipe for bronchoscopy, including the catheter body, the one end of catheter body is equipped with the administration joint, the other end of catheter body is equipped with papilla, papilla diameter is less than the diameter of catheter body, the bottom end of papilla is hemispherical, the outer peripheral wall of the other end of catheter body is equipped with a plurality of medicine spraying area along the equidistance of circumference, and each medicine spraying area is equipped with a plurality of spray holes on the outer peripheral wall of catheter body, papilla guides catheter body to pass through glottis smoothly, thus can also guide bronchoscope, reduce the damage to glottis of patient, and anesthesia medicine is sprayed from each spray hole along the outer peripheral wall of catheter body, easy to make the atomization of medicine and increase the spraying area, so that the medicine is easy to be absorbed by patient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a mist spray guide tube for bronchoscopy. Background Technology

[0002] A bronchoscope is a medical device inserted through the mouth or nose into a patient's lower respiratory tract for observation, biopsy sampling, bacteriological and cytological examination of lesions in the lobes, segments, and subsegments of the bronchi. When used with a TV system, it can be used for photography, teaching, and dynamic recording. The guiding tube is used in conjunction with the bronchoscope. One end of the guiding tube is connected to a drug delivery connector, and the other end is inserted through a port on the bronchoscope and extends out of the bronchoscope's exit, passing through the patient's glottis to reach the designated position. The drug delivery connector is connected to a device that can inject anesthetic drugs into the connector, for example, by injecting anesthetic drugs into the connector using a syringe. The anesthetic drugs are then sprayed from the other end of the guiding tube onto the patient's tissues. When the bronchoscope passes through the glottis, inaccurate positioning or misalignment can easily cause damage to the patient's glottis, leading to glottic edema. Furthermore, the anesthetic drugs sprayed from the other end of the guiding tube are in a columnar form, making them difficult to absorb. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mist spray guide tube for bronchoscopy, so as to solve the technical problems of easy damage to the patient's glottis and poor absorption of anesthetic drugs during bronchoscopy.

[0004] To solve the above-mentioned technical problems, this utility model provides a mist spray guide tube for bronchoscopy, including a catheter body, a drug delivery connector at one end of the catheter body, a papilla at the other end of the catheter body, the diameter of the papilla being smaller than the diameter of the catheter body, the bottom end of the papilla being hemispherical, and a number of spraying areas are equidistantly arranged along the circumference on the outer peripheral wall of the other end of the catheter body, each spraying area having a number of spray holes provided on the outer peripheral wall of the catheter body.

[0005] With the above structure, the atomized spray guide tube for bronchoscopy of this utility model has the following advantages: the method of using the guide tube is the same as the prior art. The other end of the tube body is inserted into the bronchoscope port and extends out of the bronchoscope outlet. When the other end of the tube body passes through the patient's glottis, the hemispherical mastoid process at the bottom plays a guiding role. The mastoid process guides the tube body smoothly through the glottis, thus also guiding the bronchoscope, allowing the bronchoscope to pass smoothly through the glottis and reducing damage to the patient's glottis. When administering the medication, the anesthetic drug is sprayed circumferentially from each nozzle along the outer peripheral wall of the tube body, which easily atomizes the drug and increases the spray area, making the drug easier for the patient to absorb and reducing the patient's coughing.

[0006] As an improvement, each spraying area includes, from top to bottom, several first spray holes set at an upward angle, several second spray holes set at a horizontal angle, and several third spray holes set at a downward angle; this structure further increases the drug spraying area and improves the uniformity of anesthesia.

[0007] As an improvement, each spraying area is provided with several rows of first spray holes, several rows of second spray holes, and several rows of third spray holes. The tilt angle of each row of first spray holes gradually decreases from top to bottom, while the tilt angle of each row of third spray holes gradually increases from top to bottom. This structure further increases the drug spraying area and improves the uniformity of anesthesia.

[0008] As an improvement, the tilt angle of the first nozzle is 15°-45°, and the tilt angle of the third nozzle is 15°-45°.

[0009] As an improvement, a pressure gauge is connected to the drug delivery connector; with this structure, the pressure gauge displays the drug delivery pressure, and medical staff can adjust the drug delivery pressure according to the pressure gauge during operation to avoid the drug delivery pressure being too high or too low.

[0010] As an improvement, the drug delivery connector includes a drug inlet with a funnel-shaped inner wall and a conical sealing ring connected to the inner wall. With this structure, the funnel-shaped inner wall of the drug inlet can be adapted to syringes of different sizes, while the conical sealing ring prevents the drug from leaking out of the drug inlet during administration.

[0011] As an improvement, an annular flange is provided on the outer peripheral wall of the drug delivery connector; with this structure, medical staff can hold the annular flange with their hands to make the drug delivery connector fit as closely as possible with the syringe during drug delivery, preventing drug leakage.

[0012] As an improvement, the surface of the mastoid process is coated with a hydrophilic coating; this structure reduces the friction between the mastoid process and the patient's tissue, making it easier to insert the guide tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the other end of the catheter body in this utility model.

[0015] Figure 3 This is a cross-sectional view of the drug delivery connector portion of this utility model.

[0016] Reference numerals: 1. Catheter body; 2. Drug delivery connector; 3. Papillary; 4. Spraying area; 5. First spray hole; 6. Second spray hole; 7. Third spray hole; 8. Pressure gauge; 9. Drug inlet; 10. Conical sealing ring; 11. Annular flange. Detailed Implementation

[0017] The following is a detailed description of a mist spray guide tube for bronchoscopy according to the present invention, with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, a bronchoscopy mist spray guide tube includes a catheter body 1, with a drug delivery connector 2 at one end of the catheter body 1. Figure 3 As shown, the drug delivery connector 2 includes a drug inlet 9, the inner wall of which is funnel-shaped, and a conical sealing ring 10 is connected to the inner wall of the drug inlet 9. Correspondingly, the outer wall of the drug delivery connector 2 corresponding to the drug inlet 9 is also conical. Anesthetic drugs are injected into the drug delivery connector 2 through a syringe. During injection, the syringe head is located inside the drug inlet 9 and abuts against the conical sealing ring 10. The funnel-shaped inner wall of the drug inlet 9 can be adapted to syringes of different sizes.

[0019] In addition, an annular flange 11 is provided on the outer peripheral wall of the drug delivery connector 2. When injecting anesthetic drugs, medical staff hold the syringe in one hand and the drug delivery connector 2 in the other hand, and press the annular flange 11 with two fingers, applying force in opposite directions to prevent the anesthetic drugs from leaking out.

[0020] like Figure 1 As shown, the other end of the catheter body 1 is provided with a papilla 3. The diameter of the papilla 3 is smaller than the diameter of the catheter body 1. The bottom end of the papilla 3 is hemispherical. The papilla 3 and the catheter body 1 are integrally formed, and the materials are all guide tube materials in the prior art. In this embodiment, the surface of the papilla 3 is coated with a hydrophilic coating. Since the diameter of the papilla 3 is smaller than the diameter of the catheter body 1, a stepped surface is formed between the papilla 3 and the bottom end of the catheter body 1. Spray holes can also be provided on the stepped surface as needed.

[0021] like Figure 1 and Figure 2 As shown, several spraying areas 4 are equidistantly arranged along the circumferential direction on the outer peripheral wall of the other end of the conduit body 1. Each spraying area 4 is provided with several spray holes on the outer peripheral wall of the conduit body 1. The structure and distribution of the spray holes in each spraying area 4 are the same. The specific structure and distribution of the spray holes in one of the spraying areas 4 will be described in detail below.

[0022] like Figure 2 As shown, each spraying area 4 has several spray holes arranged from top to bottom, including several first spray holes 5 arranged obliquely upward, several second spray holes 6 arranged horizontally, and several third spray holes 7 arranged obliquely downward. Each spraying area 4 has several rows of first spray holes 5, several rows of second spray holes 6, and several rows of third spray holes 7. The inclination angle of each row of first spray holes 5 gradually decreases from top to bottom, and the inclination angle of each row of third spray holes 7 gradually increases from top to bottom. That is to say, the inclination angle of the first spray hole 5 located at the bottom is less than the inclination angle of the first spray hole 5 located at the top, and the inclination angle of the third spray hole 7 located at the bottom is greater than the inclination angle of the third spray hole 7 located at the top.

[0023] For example, assuming that the first nozzle 5, the second nozzle 6, and the third nozzle 7 are arranged in three rows from top to bottom, the tilt angle of the first nozzle 5 in the first row is the largest, followed by the second row, and the tilt angle of the third row is the smallest; similarly, the tilt angle of the third nozzle 7 in the first row is the smallest, followed by the second row, and the tilt angle of the third row is the largest. In this embodiment, the tilt angle of the first nozzle 5 is 15°-45°, and the tilt angle of the third nozzle 7 is also 15°-45°. Therefore, the tilt angles of the first nozzle 5 in the first row and the third nozzle 7 in the third row are both 40°, the tilt angles of the first nozzle 5 in the second row and the third nozzle 7 in the second row are both 30°, and the tilt angles of the first nozzle 5 in the third row and the third nozzle 7 in the first row are both 20°. The diameter of each nozzle is 0.1 mm.

[0024] like Figure 1 As shown, the drug delivery connector 2 is connected to a pressure gauge 8. When the syringe injects anesthetic drugs, the pressure gauge 8 detects the injection pressure. It is necessary to ensure that the drug can be sprayed onto the patient's tissue when it is sprayed out of the nozzle for better drug delivery. Therefore, a reasonable injection pressure range is determined in advance through experiments, and the injection pressure and injection speed are adjusted according to the pressure of the pressure gauge 8 during actual injection.

[0025] Pressure gauge 8 can be connected to drug delivery connector 2 via a three-way valve. A check valve can also be installed between pressure gauge 8 and the three-way valve as needed. The specific structure and installation method are existing technologies and will not be described in detail here.

[0026] The guiding tube is used in the same way as existing technology. The other end of the catheter body 1 is inserted into the bronchoscope port and extends out of the bronchoscope outlet. When the other end of the catheter body 1 passes through the patient's glottis, the hemispherical mastoid process 3 acts as a guide. The mastoid process 3 guides the catheter body 1 smoothly through the glottis, thus also guiding the bronchoscope, allowing the bronchoscope to pass smoothly through the glottis, reducing the lateral shaking of the bronchoscope, and reducing damage to the patient's glottis. When administering medication, the anesthetic drug is sprayed circumferentially from each nozzle along the outer peripheral wall of the catheter body 1, which easily atomizes the drug and increases the spray area, making the drug easier for the patient to absorb and reducing the patient's coughing.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A mist spray guide tube for bronchoscopy, characterized in that, The catheter body (1) includes a drug delivery connector (2) at one end and a papilla (3) at the other end. The diameter of the papilla (3) is smaller than that of the catheter body (1). The bottom of the papilla (3) is hemispherical. Several spraying areas (4) are equidistantly arranged along the circumferential direction on the outer peripheral wall of the other end of the catheter body (1). Each spraying area (4) is provided with several spray holes on the outer peripheral wall of the catheter body (1).

2. The atomized spray guide tube for bronchoscopy according to claim 1, characterized in that, Each of the spraying areas (4) includes, from top to bottom, a number of first spray holes (5) arranged obliquely upward, a number of second spray holes (6) arranged horizontally, and a number of third spray holes (7) arranged obliquely downward.

3. The atomized spray guide tube for bronchoscopy according to claim 2, characterized in that, Each of the spraying areas (4) is provided with several rows of first spray holes (5), several rows of second spray holes (6) and several rows of third spray holes (7). The tilt angle of each row of first spray holes (5) gradually decreases from top to bottom, and the tilt angle of each row of third spray holes (7) gradually increases from top to bottom.

4. The atomized spray guide tube for bronchoscopy according to claim 3, characterized in that, The tilt angle of the first nozzle (5) is 15°-45°, and the tilt angle of the third nozzle (7) is 15°-45°.

5. The atomized spray guide tube for bronchoscopy according to claim 1, characterized in that, The drug delivery connector (2) is connected to a pressure gauge (8).

6. The atomized spray guide tube for bronchoscopy according to claim 1, characterized in that, The drug delivery connector (2) includes a drug inlet (9), the inner wall of which is funnel-shaped, and a conical sealing ring (10) is connected to the inner wall of which.

7. The atomized spray guide tube for bronchoscopy according to claim 6, characterized in that, The drug delivery connector (2) has an annular flange (11) on its outer peripheral wall.

8. The atomized spray guide tube for bronchoscopy according to claim 1, characterized in that, The surface of the papilla (3) is coated with a hydrophilic coating.

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