Disposable rigid bronchoscope

Abstract

This invention provides a disposable rigid bronchoscope, comprising: a rigid bronchoscope body, with a first ventilation port on one side wall and a ventilator interface provided thereon, and a side hole on the other side wall; a guide tube made of semi-rigid plastic, the inner diameter of which is adapted to the outer diameter of the endoscope, the guide tube having an open limiting end and a bendable end, the limiting end being detachably placed inside the rigid bronchoscope body, the outer wall of the limiting end fitting against the inner wall of the rigid bronchoscope body, the diameter of the bendable end decreasing sequentially, and a second ventilation port on the side wall of the guide tube; a balloon fitting around the rigid bronchoscope body; and a sealing cap detachably located at the other end of the rigid bronchoscope body, the sealing cap having a perforation in the middle of its end face, the diameter of which is adapted to the outer diameter of the endoscope. This disposable rigid bronchoscope facilitates insertion, reduces insertion difficulty, and minimizes air leakage from the airway.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a disposable rigid bronchoscope. Background Technology

[0002] Rigid bronchoscope, or rigid bronchoscope for short, is used clinically for airway interventional treatment. As an interventional channel, it allows fiberoptic bronchoscopes and other instruments to enter the airway. Through the eyepiece of the fiberoptic bronchoscope, stent release, laser ablation, foreign body removal, cryotherapy, electrocautery, and other operations can be performed under direct vision. It is an indispensable instrument in many complex airway interventional surgeries.

[0003] Currently, rigid endoscopic instruments used in clinical practice are generally hollow tubes made of metal, which are expensive. In traditional procedures, they are usually inserted directly through the patient's mouth, which is difficult and requires a high level of clinical skill to place successfully, thus limiting clinical diagnosis and treatment to some extent. In addition, after the rigid endoscopic instrument is inserted into the patient's airway during general anesthesia, the outer wall of the rigid endoscopic instrument and the airway are usually difficult to fit together, and the oxygen supplied by the ventilator will escape from the gap between the two, so the patient's oxygen concentration and tidal volume during the operation cannot reach the corresponding requirements.

[0004] Therefore, how to provide a disposable rigid bronchoscope that facilitates insertion, reduces insertion difficulty, and minimizes gas leakage from the airway is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is that rigid endoscopes in the prior art are generally hollow tubes made of metal, which are expensive to manufacture, difficult to insert, and the oxygen supplied by the ventilator can escape from the gaps in the outer wall of the rigid endoscope and the airway.

[0006] To solve the above-mentioned technical problems, this utility model provides a disposable rigid bronchoscope, comprising: a rigid endoscope body, both ends of which are open; a first ventilation hole is formed on the side wall of one end of the rigid endoscope body, and a ventilator interface is provided on the first ventilation hole; a side hole is formed on the side wall of the other end of the rigid endoscope body; and a guide tube, which is made of semi-rigid plastic, the inner diameter of the guide tube being adapted to the outer diameter of the endoscope, the guide tube having a limiting end and a bendable end, both of which are open, and the limiting end being detachably placed inside the rigid endoscope body. The endpiece has a limiting end whose outer wall is fitted to the inner wall of the rigid endpiece body. The diameter of the bendable end decreases sequentially from the limiting end to the bendable end. A second vent hole is provided on the side wall of the guide tube. The distance between the second vent hole and the end face of the limiting end is equal to the distance between the first vent hole and the end face of one end of the rigid endpiece body. A balloon component is fitted around the rigid endpiece body. A sealing cap is detachably provided at the other end of the rigid endpiece body. A perforation is provided in the middle of the end face of the sealing cap. The diameter of the perforation is adapted to the outer diameter of the endoscope.

[0007] As a further technical solution of this utility model, the balloon component includes: an inflatable balloon, which is sleeved on the periphery of the rigid endoscope body and located between the first vent hole and the side hole; a connecting tube, one end of which is fixed on the outer wall of the rigid endoscope body and communicates with the inflatable balloon; and an inflation / deflation valve, which is disposed at the other end of the connecting tube.

[0008] As a further technical solution of this utility model, it also includes: a limiting protrusion, the limiting protrusion being fixed on the outer wall of the end of the limiting end, a limiting slot being formed at one end of the rigid lens body, and the limiting protrusion being detachably placed inside the limiting slot.

[0009] As a further technical solution of this utility model, the number of the limiting slots and the limiting protrusions are both two. The two limiting slots are symmetrically distributed at one end of the rigid lens body, and the two limiting protrusions are symmetrically distributed on the outer wall of the end of the limiting end. One of the limiting protrusions is detachably placed inside the corresponding limiting slot.

[0010] As a further technical solution of this utility model, the rigid mirror body is made of rigid plastic.

[0011] As a further technical solution of this utility model, the sealing cap includes: a sealing cap body, both ends of which are open, and the sealing cap body is detachably sleeved on the other end of the rigid lens body; a sealing sheet, which is vertically fixed inside the end of the sealing cap body away from the rigid lens body, the size of the sealing sheet is the same as the inner diameter of the sealing cap body, and the sealing sheet has the perforation in the middle.

[0012] As a further technical solution of this utility model, the sealing sheet is made of silicone material.

[0013] As a further technical solution of this utility model, the sealing cap is made of rigid plastic.

[0014] As a further technical solution of this utility model, the inner wall of the sealing cap is provided with an internal thread, and the outer wall of the other end of the rigid mirror body is provided with an external thread. The sealing cap is threadedly connected to the rigid mirror body through the internal thread and the external thread.

[0015] Beneficial effects:

[0016] This utility model provides a disposable rigid bronchoscope, comprising a rigid endoscope body, a guiding tube, a balloon fitting, and a sealing cap. Both ends of the rigid endoscope body are open. A first ventilation port on the side wall of one end of the rigid endoscope body is provided with a ventilator interface, and a side hole is provided on the side wall of the other end for connecting to an external ventilator via the ventilator interface. Oxygenated gas supplied by the external ventilator enters the rigid endoscope body through the ventilator interface and then enters the patient's airway through the port or side hole at the other end of the rigid endoscope body to maintain airway patency. The inner diameter of the guiding tube is adapted to the outer diameter of the endoscope. The guiding tube has a limiting end and a bendable end. Both are open-ended. The limiting end of the guide tube is detachably placed inside the rigid endoscope body, and the sealing cap is detachably located at the other end of the rigid endoscope body. The diameter of the perforation in the middle of the end face of the sealing cap is adapted to the outer diameter of the endoscope. In clinical use, the limiting end of the guide tube can be placed inside the rigid endoscope body, and the flexible end can be located outside the other end of the rigid endoscope body. Then, the sealing cap is placed on the other end of the rigid endoscope body, allowing the endoscope to pass through the perforation and the inside of the guide tube in sequence. The endoscope is then inserted into the airway through the patient's glottis for visual guidance. The guide tube is then moved along the endoscope's guide... The guide tube is slowly pushed into the patient's airway. Made of semi-rigid plastic, the diameter of the bendable end decreases progressively from the limiting end to the bendable end, allowing the guide tube to bend and deform to a certain extent. When the guide tube is pushed into the patient's airway along the endoscope, the bendable end bends with the endoscope and enters the airway, simultaneously guiding the rigid endoscope into the patient's airway to complete the placement. This facilitates rigid endoscope placement and reduces the difficulty of placement. The outer wall of the limiting end fits against the inner wall of the rigid endoscope, and the second ventilation hole on the side wall of the guide tube is aligned with the end face of the limiting end. The distance is equal to the distance between the first ventilation port and the end face of one end of the rigid endpiece, so that when the end face of the limiting end and the end face of one end of the rigid endpiece are aligned and fixed, the second ventilation port is aligned with the first ventilation port, so that the oxygen-containing gas provided by the external ventilator enters the guiding tube through the ventilator interface, the first ventilation port, and the second ventilation port in sequence, and enters the airway through the flexible end, which facilitates keeping the airway open when the rigid endpiece is inserted; the balloon is sleeved on the outside of the rigid endpiece, so that the balloon can be inflated and fit against the inner wall of the airway, thereby reducing the leakage of gas provided by the external ventilator from the gap between the inner wall of the airway and the rigid endpiece.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a disposable rigid bronchoscope provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the rigid endoscope body and balloon component provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the guide tube provided in an embodiment of the present invention.

[0022] Figure label:

[0023] 1. Rigid endoscope body; 11. First vent; 12. Side vent; 13. Limiting slot;

[0024] 2. Guide tube; 21. Limiting end; 22. Bendable end; 23. Second vent;

[0025] 3. Balloon assembly; 31. Inflatable balloon; 32. Connecting tube; 33. Inflation / deflation valve;

[0026] 4. Sealing cap; 41. Perforation; 42. Sealing cap body; 43. Sealing sheet;

[0027] 5. Ventilator interface;

[0028] 6. Limiting protrusion;

[0029] 7. External thread. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1-3This embodiment provides a disposable rigid bronchoscope, including a rigid bronchoscope body 1, a guiding tube 2, a balloon 3, and a sealing cap 4. The rigid bronchoscope body 1 has open ends. A first ventilation hole 11 is provided on the side wall of one end of the rigid bronchoscope body 1, and a ventilator interface 5 is provided on the first ventilation hole 11. The ventilator interface 5 is integrally formed with the rigid bronchoscope body 1 and is connected to an external ventilator. A side hole 12 is provided on the side wall of the other end of the rigid bronchoscope body 1. The guiding tube 2 is made of semi-rigid plastic, and its inner diameter is adapted to the outer diameter of the endoscope. Specifically, the inner diameter of the guiding tube 2 can be larger than the outer diameter of the endoscope. The guiding tube 2 has a limiting end 21 and a bendable end 22, both of which are open. The endoscope 1 is detachably placed inside the rigid endoscope body 1. The outer wall of the limiting end 21 fits against the inner wall of the rigid endoscope body 1. The diameter of the bendable end 22 decreases sequentially from the limiting end 21 to the bendable end 22. The side wall of the guide tube 2 is provided with a second vent hole 23. The distance between the second vent hole 23 and the end face of the limiting end 21 is equal to the distance between the first vent hole 11 and the end face of one end of the rigid endoscope body 1. The balloon component 3 is sleeved on the periphery of the rigid endoscope body 1. The sealing cap 4 is detachably disposed at the other end of the rigid endoscope body 1. The end face of the sealing cap 4 is provided with a perforation 41. The diameter of the perforation 41 is adapted to the outer diameter of the endoscope. Specifically, the endoscope can be a conventional bronchoscope. The length of the limiting end 21 is equal to the length of the rigid endoscope body 1.

[0033] Specifically, this utility model provides a disposable rigid bronchoscope, including a rigid bronchoscope body 1, a guiding tube 2, a balloon 3, and a sealing cap 4. Both ends of the rigid bronchoscope body 1 are open. A first ventilation port 11 is provided on the side wall of one end of the rigid bronchoscope body 1, which has a ventilator interface 5. A side hole 12 is provided on the side wall of the other end of the rigid bronchoscope body 1 to connect to an external ventilator through the ventilator interface 5. Oxygenated gas provided by the external ventilator enters the rigid bronchoscope body 1 through the ventilator interface 5 and then enters the patient's airway through the port or side hole 12 at the other end of the rigid bronchoscope body 1 to maintain airway patency. When one of the ports or side holes 12 at the other end of the rigid bronchoscope body 1 (e.g., the port at the other end of the rigid bronchoscope body 1) is occupied, air can be supplied through... The other end (side hole 12) is used for airway ventilation; the inner diameter of the guiding tube 2 is adapted to the outer diameter of the endoscope. Both the limiting end 21 and the flexible end 22 of the guiding tube 2 are open. The limiting end 21 of the guiding tube 2 is detachably placed inside the rigid endoscope body 1. The sealing cap 4 is detachably placed at the other end of the rigid endoscope body 1. The diameter of the perforation 41 in the middle of the end face of the sealing cap 4 is adapted to the outer diameter of the endoscope. In clinical use, the limiting end 21 of the guiding tube 2 can be placed inside the rigid endoscope body 1, the flexible end 22 can be located outside the other end of the rigid endoscope body 1, and then the sealing cap 4 can be placed on the other end of the rigid endoscope body 1, so that the endoscope can pass through the perforation 41 and the inside of the guiding tube 2 in sequence. The endoscope is inserted into the patient's airway through the glottis for visual guidance. The guiding tube 2 is then slowly pushed into the patient's airway along the endoscope's guidance. The guiding tube 2 is made of semi-rigid plastic, with the diameter of the bendable end 22 decreasing sequentially from the limiting end 21 towards the bendable end 22, allowing the guiding tube 2 to bend and deform to a certain extent. When the guiding tube 2 is pushed into the patient's airway along the endoscope, the bendable end 22 bends with the endoscope and enters the patient's airway, simultaneously guiding the rigid endoscope body 1 into the patient's airway to complete the placement. This facilitates rigid endoscope placement and reduces the difficulty of placement. The outer wall of the limiting end 21 fits against the inner wall of the rigid endoscope body 1, and the side wall of the guiding tube 2 has a first... The distance between the second ventilation port 23 and the end face of the limiting end 21 is equal to the distance between the first ventilation port 11 and the end face of one end of the rigid endoscope body 1. This ensures that when the end face of the limiting end 21 and the end face of one end of the rigid endoscope body 1 are aligned and fixed, the second ventilation port 23 is aligned with the first ventilation port 11. This allows the oxygen-containing gas provided by the external ventilator to enter the guiding tube 2 sequentially through the ventilator interface 5, the first ventilation port 11, and the second ventilation port 23, and then enter the airway through the flexible end 22, facilitating airway patency during rigid endoscope insertion. The balloon component 3 is fitted around the rigid endoscope body 1, allowing the balloon component 3 to inflate and fit against the inner wall of the airway, thereby reducing leakage of gas provided by the external ventilator from the gap between the inner wall of the airway and the rigid endoscope body 1.

[0034] In some possible embodiments, the balloon component 3 includes: an inflatable balloon 31, which is sleeved around the rigid endoscope body 1 and located between the first vent hole 11 and the side hole 12; a connecting tube 32, one end of which is fixed to the outer wall of the rigid endoscope body 1 and communicates with the inflatable balloon 31; and an inflation / deflation valve 33, which is disposed at the other end of the connecting tube 32. Specifically, when the inflatable balloon 31 is inflated, the outer wall of the inflatable balloon 31 is in contact with the inner wall of the airway, and the inner wall of the inflatable balloon 31 is in contact with the outer wall of the rigid endoscope body 1; when the inflatable balloon 31 is deflated, the diameter of the inflatable balloon 31 is equal to the outer diameter of the rigid endoscope body 1.

[0035] This is because the inflatable bag 31 is fitted around the rigid endoscope body 1 and located between the first ventilation port 11 and the side port 12. One end of the connecting tube 32 is fixed to the outer wall of the rigid endoscope body 1 and connected to the inflatable bag 31. The other end is provided with an inflation / deflation valve 33. The inflatable bag 31 can be inflated or deflated by controlling the inflation / deflation valve 33 on the connecting tube 32. This makes the inflatable bag 31 fit against the rigid endoscope body 1 and the inner wall of the airway after inflation, so that the gas provided by the external ventilator enters the airway through the side port 12 or the port at the other end of the rigid endoscope body 1 and does not leak out through the gap between the rigid endoscope body 1 and the inner wall of the airway.

[0036] In some possible implementations, it also includes: a limiting protrusion 6, the limiting protrusion 6 being fixed on the outer wall of the end of the limiting end 21, and a limiting slot 13 being provided at one end of the rigid lens body 1, the limiting protrusion 6 being detachably placed inside the limiting slot 13. Specifically, the limiting protrusion 6 can be detachably placed inside the limiting slot 13 by engaging with the limiting slot 13.

[0037] This is because the limiting protrusion 6 is fixed on the outer wall of the end of the limiting end 21. The limiting protrusion 6 is detachably placed inside the limiting slot 13 opened at one end of the rigid lens body 1. When the guide tube 2 is passed through the interior of the rigid lens body 1, the limiting end 21 of the guide tube 2 can be fixed inside the rigid lens body 1 by placing the limiting protrusion 6 inside the limiting slot 13, and the end face of the limiting end 21 is aligned with the end face of one end of the rigid lens body 1, so that the first vent 11 and the second vent 23 correspond to each other to ensure ventilation.

[0038] In some possible implementations, there are two of each of the limiting slots 13 and the limiting protrusions 6. The two limiting slots 13 are symmetrically distributed at one end of the rigid lens body 1, and the two limiting protrusions 6 are symmetrically distributed on the outer wall of the end of the limiting end 21. One of the limiting protrusions 6 is detachably placed inside the corresponding limiting slot 13.

[0039] Those skilled in the art will understand that the two limiting slots 13 are symmetrically distributed at one end of the rigid lens body 1, and the two limiting protrusions 6 are symmetrically distributed on the outer wall of the end of the limiting end 21. One limiting protrusion 6 is detachably placed inside the corresponding limiting slot 13. The connection stability between the guide tube 2 and the rigid lens body 1 can be improved by the two limiting slots 13 and the two limiting protrusions 6.

[0040] In some possible implementations, the rigid mirror body 1 is made of rigid plastic for easy single-use.

[0041] In some possible embodiments, the sealing cap 4 includes: a sealing cap body 42, both ends of which are open, and the sealing cap body 42 is detachably fitted onto the other end of the rigid endoscope body 1; and a sealing sheet 43, which is vertically fixed inside the end of the sealing cap body 42 away from the rigid endoscope body 1, the size of the sealing sheet 43 being the same as the inner diameter of the sealing cap body 42, and the sealing sheet 43 having a perforation 41 in its center. The diameter of the perforation 41 is the same as the outer diameter of the endoscope.

[0042] Those skilled in the art will understand that the sealing cap 42, which is open at both ends, is detachably fitted onto the other end of the rigid endoscope body 1. The sealing sheet 43 is vertically fixed inside the end of the sealing cap 42 away from the rigid endoscope body 1. The size of the sealing sheet 43 is the same as the inner diameter of the sealing cap 42, so as to seal one end of the sealing cap 42 through the sealing sheet 43. A perforation 41 is provided in the middle of the sealing sheet 43 for the endoscope to pass through. The diameter of the perforation 41 is the same as the outer diameter of the endoscope, so as to reduce the leakage of gas from the external ventilator from the other end of the rigid endoscope body 1.

[0043] In some possible implementations, the sealing sheet 43 is made of silicone material.

[0044] This is because the sealing sheet 43 is made of silicone material, which gives the sealing sheet 43 a certain degree of elasticity and flexibility, so as to avoid scratching the outer wall of the endoscope when the endoscope passes through the perforation 41.

[0045] In some possible implementations, the sealing cap 42 is made of rigid plastic.

[0046] In some possible implementations, the inner wall of the sealing cap 42 is provided with an internal thread, and the outer wall of the other end of the rigid mirror body 1 is provided with an external thread 7. The sealing cap 42 is threadedly connected to the rigid mirror body 1 through the internal thread and the external thread 7, which facilitates disassembly and installation.

[0047] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0048] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A disposable rigid bronchoscope, characterized in that, include: The rigid endoscope body has open ends. A first ventilation hole is provided on the side wall of one end of the rigid endoscope body. A ventilator interface is provided on the first ventilation hole. A side hole is provided on the side wall of the other end of the rigid endoscope body. The guide tube is made of semi-rigid plastic. The inner diameter of the guide tube is adapted to the outer diameter of the endoscope. The guide tube has a limiting end and a bendable end, both of which are open. The limiting end is detachably placed inside the rigid endoscope body. The outer wall of the limiting end fits against the inner wall of the rigid endoscope body. The diameter of the bendable end decreases sequentially from the limiting end to the bendable end. A second vent is provided on the side wall of the guide tube. The distance between the second vent and the end face of the limiting end is equal to the distance between the first vent and the end face of one end of the rigid endoscope body. A balloon component, which is sleeved around the rigid endoscope body; A sealing cap is detachably mounted on the other end of the rigid endoscope body. A perforation is provided in the middle of the end face of the sealing cap, and the diameter of the perforation is adapted to the outer diameter of the endoscope.

2. The disposable rigid bronchoscope as described in claim 1, characterized in that, The balloon component includes: An inflatable balloon is fitted around the rigid endoscope body and located between the first vent and the side hole; A connecting tube, one end of which is fixed to the outer wall of the rigid endoscope body and connected to the inflatable balloon; An inflation / deflation valve is provided at the other end of the connecting pipe.

3. The disposable rigid bronchoscope as described in claim 1, characterized in that, Also includes: A limiting protrusion is fixed on the outer wall of the end of the limiting end. A limiting slot is formed at one end of the rigid lens body. The limiting protrusion is detachably placed inside the limiting slot.

4. The disposable rigid bronchoscope as described in claim 3, characterized in that: The number of the limiting slots and the limiting protrusions are both two. The two limiting slots are symmetrically distributed at one end of the rigid lens body, and the two limiting protrusions are symmetrically distributed on the outer wall of the end of the limiting end. One of the limiting protrusions is detachably placed inside the corresponding limiting slot.

5. The disposable rigid bronchoscope as described in claim 1, characterized in that: The rigid mirror body is made of rigid plastic.

6. The disposable rigid bronchoscope as described in claim 1, characterized in that, The sealing cap includes: A sealing cap, both ends of which are open, is detachably fitted onto the other end of the rigid lens body; A sealing sheet is vertically fixed inside the end of the sealing cap away from the rigid lens body. The size of the sealing sheet is the same as the inner diameter of the sealing cap body, and the sealing sheet has a perforation in the middle.

7. The disposable rigid bronchoscope as described in claim 6, characterized in that: The sealing sheet is made of silicone material.

8. The disposable rigid bronchoscope as described in claim 7, characterized in that: The sealing cap is made of rigid plastic.

9. The disposable rigid bronchoscope as described in claim 8, characterized in that: The inner wall of the sealing cap is provided with an internal thread, and the outer wall of the other end of the rigid mirror body is provided with an external thread. The sealing cap is threadedly connected to the rigid mirror body through the internal thread and the external thread.

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