Disposable rigid speculum

Abstract

The utility model belongs to the field of medical supplies, specifically relates to disposable visible hard mirror, its characterized in that, including mirror handle main part and mirror tube, dilator, the proximal end of mirror tube and the distal end of mirror handle main part are detachably connected, the distal end of mirror tube is beveling, the distal end of mirror tube is provided with micro video camera, the proximal end of dilator and the distal end of mirror handle main part are detachably connected, the outer diameter of dilator is less than the inner diameter of mirror tube, the length of dilator is greater than the length of mirror tube, and dilator can be inserted in mirror tube, the diameter of the distal end of dilator gradually reduces, and a plurality of cut holes are formed on the distal end of dilator. The distal end of mirror tube is provided with micro video camera, and visible mirror rod does not need to be inserted again when operating, liberates the hand of operator, so that operator can operate with both hands, and great convenience is brought to operation.

Description

Technical Field

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

[0002] Rigid bronchoscopes play a crucial role in interventional respiratory procedures. Their large tubing allows for simultaneous procedures such as imaging, ablation, and suction. Furthermore, the rigid tubing protects the glottis and upper airway structures while ensuring ventilation, facilitating the repeated insertion and removal of various instruments quickly and easily. A wide variety of rigid surgical instruments are available to meet the needs of various airway interventional procedures, such as: rigid bronchoscope-guided cryoablation, cutting with the beveled tip of the rigid bronchoscope, removal with rigid forceps, and retrieval of various foreign bodies. Without the support of a rigid bronchoscope, it is difficult to perform procedures such as silicone stent and T-tube placement, Y-shaped metal stent placement, and metal stent removal.

[0003] Traditional rigid bronchoscopes / bronchoscopes have many limitations. For example, the tube and handle are integrated, and when changing to different sizes of rigid endoscopes, the entire rigid endoscope needs to be removed and reinserted, which brings great trouble and risk to the operation. On the other hand, disposable replaceable endoscopes do not have a camera device, and the endoscope rod needs to be inserted during the operation, which makes the operation more complicated. Utility Model Content

[0004] The purpose of this invention is to provide a disposable rigid endoscope, which solves the problem in the prior art that existing disposable rigid endoscopes require the insertion of an additional endoscope rod for imaging, resulting in inconvenience during surgery.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A disposable rigid mirror includes a handle body, a mirror tube, and an expander. The proximal end of the mirror tube and the distal end of the handle body are detachably connected. The distal end of the mirror tube has a beveled surface, and a miniature camera is installed at the distal end of the mirror tube. The expander is a hollow tube. The proximal end of the expander and the distal end of the lens handle body are detachably connected. The outer diameter of the expander is smaller than the inner diameter of the lens tube, and the length of the expander is greater than the length of the lens tube. A third connector is provided at the proximal end of the expander. The expander is inserted into the lens handle body through the third connector. The diameter of the distal end of the expander gradually decreases, and several holes are opened on the distal end of the expander.

[0006] Preferably, the endoscope tube is a first endoscope tube or a second endoscope tube, the inner diameter of the first endoscope tube is larger than the outer diameter of the second endoscope tube, the length of the second endoscope tube is larger than the length of the first endoscope tube, and the second endoscope tube can be inserted into the first endoscope tube.

[0007] Preferably, a first connector is provided at the proximal end of the first endoscope tube, a first occlusion balloon is provided on the first endoscope tube, the first occlusion balloon is close to the distal end of the first endoscope tube, and the first occlusion balloon is connected to a first inflatable balloon through a first connecting tube.

[0008] Preferably, a second connector is provided at the proximal end of the second endoscope tube, a second occlusion balloon is provided on the second endoscope tube, two sets of side holes are symmetrically opened on the second endoscope tube, the side holes are close to the distal end of the second endoscope tube, the second occlusion balloon is located between the side holes and the proximal end of the second endoscope tube, and is close to the side holes, and the second occlusion balloon is connected to the second inflatable balloon through a second connecting tube.

[0009] Preferably, a detachable cap is provided at the proximal end of the main body of the mirror handle.

[0010] Preferably, the main body of the lens handle is provided with a slanted side tube and a straight side tube, the slanted side tube is near the far end of the main body of the lens handle, the straight side tube is near the proximal end of the main body of the lens handle, a detachable slanted connector is provided inside the slanted side tube, and a detachable straight connector is provided inside the straight side tube.

[0011] Preferably, the lens tube is provided with a video receiver interface, and the miniature camera is connected to the video receiver interface via an electrical connection cable.

[0012] Preferably, an LED light is provided at the distal end of the endoscope tube.

[0013] Preferably, the handle body and the lens tube are rotatably connected.

[0014] Preferably, the handle body and the expander are rotatably connected.

[0015] The beneficial effects of this utility model are as follows: A miniature camera is installed at the distal end of the endoscope tube, eliminating the need to insert the video scope rod during surgery. This frees up one of the surgeon's hands, allowing the surgeon to operate with both hands, greatly improving the convenience of the procedure. It uses a replaceable endoscope tube and handle body connection, which can select the appropriate size endoscope tube according to different patients to avoid patient discomfort. It is suitable for adult and pediatric patients. The expander and the main body of the microscope handle are rotatably connected, and the microscope tube and the main body of the microscope handle are rotatably connected. When operating the microscope tube or the expander, the main body of the microscope handle remains stationary to avoid affecting normal wiring. Equipped with an inflatable first and second occlusive balloon to replace traditional gauze packing, ensuring airway tightness while avoiding the risk of aspiration, and enabling rapid switching between open and closed ventilation modes. It supports direct connection to ordinary ventilators and is also compatible with conventional and high-frequency ventilators. Made of disposable rigid plastic, it is disposable after use, reducing the risk of cross-infection and is low in cost; at the same time, the material itself is both rigid and elastic, and can be inserted into the airway of patients with high glottis positions. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the main body of the mirror handle of this utility model; Figure 2 This is a three-dimensional structural diagram of the first mirror tube of this utility model; Figure 3 This is a three-dimensional structural diagram of the second mirror tube of this utility model; Figure 4 This is a three-dimensional structural diagram of the expander of this utility model; Figure 5 This is a three-dimensional structural diagram of a disposable rigid mirror according to Embodiment 1 of this utility model, wherein the main body of the mirror handle and the first mirror tube are combined. Figure 6 This is a schematic diagram of the structure of a disposable rigid mirror according to Embodiment 1 of the present invention, wherein the main body of the mirror handle and the first mirror tube are combined; Figure 7 This is a cross-sectional view of a disposable rigid mirror according to Embodiment 1 of the present invention, wherein the main body of the mirror handle and the first mirror tube are combined. Figure 8 This is a three-dimensional structural diagram of a disposable rigid mirror according to Embodiment 1 of this utility model, wherein the main body of the mirror handle and the second mirror tube are combined. Figure 9 This is a schematic diagram of the structure of a disposable rigid mirror according to Embodiment 1 of the present invention, wherein the main body of the mirror handle and the second mirror tube are combined; Figure 10 This is a cross-sectional view of a disposable rigid mirror according to Embodiment 1 of this utility model, wherein the main body of the mirror handle and the second mirror tube are combined. Figure 11 This is a three-dimensional structural diagram of a disposable rigid lens according to Embodiment 1 of this utility model, wherein the lens handle body, the first lens tube, and the expander are combined. Figure 12 This is a cross-sectional view of a disposable rigid mirror according to Embodiment 1 of the present invention, showing the main body of the mirror handle, the first mirror tube, and the expander assembly. Figure 13 This is a three-dimensional structural diagram of a disposable rigid lens according to Embodiment 1 of this utility model, wherein the lens handle body, the second lens tube, and the expander are combined. Figure 14This is a cross-sectional view of a disposable rigid lens according to Embodiment 1 of this utility model, showing the lens handle body, the second lens tube, and the expander assembly.

[0017] The components are as follows: 11. Lens handle body; 12. Lens cap; 13. Angled side tube; 14. Angled connector; 15. Straight side tube; 16. Straight connector; 21. Second lens tube; 22. Second connector; 23. Second occlusion balloon; 24. Side hole; 25. Second connecting tube; 26. Second inflatable balloon; 31. First lens tube; 32. First connector; 33. First occlusion balloon; 34. First connecting tube; 35. First inflatable balloon; 41. Expander; 42. Cut hole; 43. Third connector; 5. Miniature camera; 51. Video output interface; 52. Electrical connection cable. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0019] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 Disposable rigid contact lenses, such as Figures 1-14 As shown, the device includes a handle body 11, a tube, and an expander 41. The proximal end of the tube and the distal end of the handle body 11 are detachably connected. The distal end of the tube is beveled with an angle of 20-60°, preferably 30°. A miniature camera 5 is installed at the distal end of the tube. Existing endoscopes do not have a built-in camera and require insertion of an endoscope rod during surgery, which complicates the procedure. This application provides a miniature camera 5 at the distal end of the tube, which is bonded to the distal end of the tube. The tube wall has a channel for the connection cable of the miniature camera 5, eliminating the need to insert the endoscope rod during surgery. This frees up one of the surgeon's hands, allowing for two-handed operation and greatly improving convenience.

[0022] The dilator 41 is a hollow tube. The proximal end of the dilator 41 is detachably connected to the distal end of the endoscope handle body 11. The outer diameter of the dilator 41 is smaller than the inner diameter of the endoscope tube, and the length of the dilator 41 is greater than the length of the endoscope tube. A third connector 43 is provided at the proximal end of the dilator 41. The dilator 41 is inserted into the endoscope handle body 11 through the third connector 43. The diameter of the distal end of the dilator 41 gradually decreases. Several incision holes 42 are opened on the distal end of the dilator 41. The incision holes 42 are used to diffuse oxygen into the lungs and to reduce pressure during dilation. When the dilator 41 is inserted into the narrow part of the patient's trachea for dilation, the tracheal tissue is squeezed into the incision holes 42 under pressure, reducing the pressure at the dilation site.

[0023] Specifically, the expander 41 is available in three models with diameters of 10 mm, 8 mm, and 6 mm.

[0024] As a preferred example of the above embodiments, the endoscope tube is a first endoscope tube 31 or a second endoscope tube 21, the inner diameter of the first endoscope tube 31 is larger than the outer diameter of the second endoscope tube 21, the length of the second endoscope tube 21 is larger than the length of the first endoscope tube 31, the first endoscope tube 31 is used to insert the main airway, and the second endoscope tube 21 is used to insert the bronchus.

[0025] The endoscope tubes used for adults have a large diameter. Specifically, the first endoscope tube 31 is divided into three models with a diameter of 14 mm, 12 mm and 10 mm. The second endoscope tube 21 is divided into three models according to its diameter: 12 mm endoscope tube, 10 mm endoscope tube and 8 mm endoscope tube.

[0026] The first endoscope tube 31 is the main bronchoscope tube, and the second endoscope tube 21 is the bronchoscope tube. As a preferred example of the above embodiments, such as Figure 6 As shown, the first endoscope tube 31 is a hollow cylindrical tube. A first connector 32 is provided at the proximal end of the first endoscope tube 31. A first occlusion balloon 33 is provided on the first endoscope tube 31. The first occlusion balloon 33 is close to the distal end of the first endoscope tube 31. The first occlusion balloon 33 is connected to a first inflatable balloon 35 through a first connecting tube 34. The first occlusion balloon 33 can seal the gap between the first endoscope tube 31 and the trachea to prevent conduction, thus changing open ventilation to closed ventilation, which is convenient for the use of ordinary ventilators or anesthesia machines. The first endoscope tube 31 has a channel inside its tube wall and an inflation port near its proximal end. The first end of the first connecting tube 34 is connected to and communicates with the first occlusion balloon. The first connecting tube 34 passes through the channel and the second end of the first connecting tube 34 exits from the inflation port. The second end of the first connecting tube 34 is connected to and communicates with the first inflatable balloon 35.

[0027] As a preferred example of the above embodiments, the endoscope tube is a rigid plastic tube with elasticity. Existing rigid endoscopes are made of rigid metal material and have no elasticity, making them difficult to insert into the airways of some patients with high glottis positions. The elastic rigid plastic tube is easier to insert into the airways of patients with high glottis positions.

[0028] As a preferred example of the above embodiment, the second endoscope tube 21 is a hollow cylindrical tube. A second connector 22 is provided at the proximal end of the second endoscope tube 21. A second occlusion balloon 23 is provided on the second endoscope tube 21. Two sets of side holes 24 are symmetrically opened on the second endoscope tube 21. The side holes 24 are close to the distal end of the second endoscope tube 21 and are used for diffusing oxygen into the lungs and for decompression during expansion. The second occlusion balloon 23 is located between the side holes 24 and the proximal end of the second endoscope tube 21, and is close to the side holes 24. The second occlusion balloon 23 is connected to a second inflation tube 25. The second occlusion balloon 23 can seal the gap between the second endoscope tube 21 and the trachea to prevent conduction, thus converting open ventilation to closed ventilation, which is convenient for the use of ordinary ventilators or anesthesia machines. The second endoscope tube 21 has a channel in its wall and an inflation port near its proximal end. The second end of the second connecting tube 25 is connected to and communicates with the second occlusion balloon 23. The second connecting tube 25 passes through the channel and its second end exits from the inflation port. The second end of the second connecting tube 25 is connected to and communicates with the second inflatable balloon 26.

[0029] Existing endoscope tubes do not have occlusion balloons, making them inconvenient for closed ventilation. In this application, the first endoscope tube 31 is provided with a first occlusion balloon 33, and the second endoscope tube 21 is provided with a second occlusion balloon 23, which can be used for closed ventilation.

[0030] As a preferred example of the above embodiment, the number of a set of side holes 24 is 3, the inner side holes 24 are spaced 3 mm apart, and the size of the side holes 24 is 2*4 mm.

[0031] Pediatric endoscopes have small diameters. Generally, the first endoscope tube 31 used in pediatrics is available in two sizes: 7 mm and 6 mm in diameter. The second endoscope tube 21 used in pediatrics is longer than the first endoscope tube 31 and is available in two sizes: 6 mm and 5 mm in diameter. The dilator 41 used in pediatrics has a diameter of 6 mm.

[0032] As a preferred example of the above embodiments, a retaining ring is provided on the proximal end of the lens handle body 11. The retaining ring is made of an elastic hard material, and the lens cap 12 is provided with a retaining groove corresponding to the retaining ring. The lens cap 12 is snapped into the proximal end of the lens handle body 11.

[0033] As a preferred example of the above embodiment, the endoscope handle body 11 is provided with an oblique side tube 13 and a straight side tube 15. The oblique side tube 13 is close to the distal end of the endoscope handle body 11, and the straight side tube 15 is close to the proximal end of the endoscope handle body 11. Both the straight side tube 15 and the oblique side tube 13 adopt ISO standard interfaces and can be directly used with ordinary anesthesia machine / ventilator circuits. It also includes an oblique connector 14 adapted to the oblique side tube 13 and a straight connector 16 adapted to the straight side tube 15 for connecting to a jet ventilator for use.

[0034] The straight connector 16 is provided with an L-shaped tube. When the straight connector is connected to the straight side tube 15, the center line of the far end of the L-shaped tube is parallel to the center line of the lens handle body 11. The oblique connector 14 is provided with a bent tube. When the oblique connector is connected to the oblique side tube 13, the center line of the far end of the bent tube is parallel to the center line of the lens handle body.

[0035] When the main body 11 of the endoscope handle is ventilated by a regular anesthesia machine / ventilator, the first occlusion balloon 33 or the second occlusion balloon 23 is inflated, the airway and the endoscope tube are sealed, and the straight side tube 15 is used to directly connect to the anesthesia machine / ventilator without using the straight connector 16. At this time, the oblique side tube 13 can be used to insert a suction tube or other related treatment devices. When the main body 11 of the endoscope handle is used with a conventional jet ventilator, the first occlusion balloon 33 or the second occlusion balloon 23 is in the deflated state, and there is no seal between the airway and the endoscope tube. The straight side tube 15 is connected to the conventional jet ventilator through the straight connector 16. At this time, the oblique side tube 13 can be used to insert a suction tube or other related therapeutic devices. The existing endoscope handle cannot be used for connection to dual-frequency ventilation equipment. This application adopts a straight side tube 15 and a straight connector 16, and an oblique side tube 13 and an oblique connector 14. When a dual-frequency jet ventilator is needed, the first occlusion balloon 33 or the second occlusion balloon 23 is in the deflated state, and there is no seal between the airway and the endoscope tube. The straight side tube 15 is connected to the normal frequency ventilation interface of the dual-frequency jet ventilator through the straight connector 16, and the oblique side tube 13 is connected to the high frequency ventilation interface of the normal frequency jet ventilator through the oblique connector 14, thus forming dual-frequency jet ventilation.

[0036] As a preferred example of the above embodiment, the lens tube is provided with a video receiver interface 51, the miniature camera is connected to the video receiver interface 51 via an electrical connection cable 52, the miniature camera 5 is coated with an oleophobic and hydrophobic coating to reduce visual blurring caused by moisture or secretions, and the video receiver interface 51 is connected to an external monitor, which may be a 7-inch LCD monitor or an external hospital monitor.

[0037] As a preferred example of the above embodiment, an LED light is provided at the distal end of the lens tube. There can be two LED lights to provide a light source, so that the ambient temperature rise caused by the light source does not exceed 1 degree Celsius. The LED light is connected to the electrical connection wire 52.

[0038] As a preferred example of the above embodiment, the lens handle body 11 and the lens tube are rotatably connected. A convex ring is provided at the proximal end of the lens tube. The convex ring is made of an elastic hard material. A groove corresponding to the convex ring is provided at the distal end of the lens handle body 11. When the lens tube is inserted into the lens handle body 11, the convex ring is embedded in the corresponding groove, which ensures that the lens tube and the lens handle body 11 can rotate relative to each other while fixing the position.

[0039] As a preferred example of the above embodiments, the lens handle body 11 and the expander 41 are rotatably connected. When the expander 41 is rotated to expand, the lens handle body 11 remains stationary to avoid affecting the sealed connection with external devices.

[0040] In use, the first endoscope tube 31 is first connected to the distal end of the endoscope handle body 11 via the first connector 32. After the first endoscope tube 31 is inserted into the patient's trachea to the predetermined position, the first occlusion balloon 33 is inflated to seal the gap between the patient's main airway and the first endoscope tube 31. At this time, the endoscope handle body 11 is connected to an external device to treat the patient's trachea. When it is necessary to treat the patient's bronchus, the endoscope handle body 11 can be detached from the first endoscope tube 31 and connected to the second endoscope tube 21. The second endoscope tube 21 is inserted into the patient's trachea to the position of the patient's bronchus for treatment. When encountering narrower airways, such as Figures 11-14 As shown, the endoscope handle body 11 can be detached from the connected endoscope tube. The endoscope handle body 11 is connected to the dilator 41, which passes through the endoscope tube to dilate the narrowed airway and assist the subsequent endoscope tube to continue entering. During airway dilation, the tissue on the inner wall of the airway is torn, and granulation tissue is squeezed into the incision hole 42. By rotating the dilator 41, the incision hole 42 on the dilator 41 is rotated to cut the torn tissue, and the tissue enters the dilator 41 to prevent it from falling into the airway and causing aspiration by the patient. The dilator 41 and the endoscope handle body 11 are rotatably connected. When the dilator 41 rotates, the endoscope handle body 11 does not rotate to avoid affecting the stability of the connection with external equipment lines.

[0041] As a specific example of the above embodiment, the first endoscope tube 31 includes a distal section and a proximal section, which are integrally formed. The distal section of the first endoscope tube 31 has a length of 330 mm and a diameter of 10 mm, 12 mm, or 14 mm, while the proximal section has a length of 20 mm and a diameter of 14 mm. The first occlusion balloon 33 is disposed on the distal section of the first endoscope tube 31 at a distance of 20 mm from the distal end of the first endoscope tube 31. The length of the first occlusion balloon 33 is 15 mm.

[0042] As a specific example of the above embodiment, the second endoscope tube 21 includes a distal section and a proximal section, which are integrally formed. The distal section of the second endoscope tube 21 has a length of 430 mm and a diameter of 8 mm, 10 mm, or 12 mm, while the proximal section has a length of 20 mm and a diameter of 14 mm. The side hole 24 is located in the distal section of the second endoscope tube 21 and is 30 mm away from the distal end. The second occlusion balloon 23 is disposed on the distal section of the second endoscope tube 21 and is located 10 mm away from the side hole 24. The length of the second occlusion balloon 23 is 10 mm. In use, the second occlusion balloon 23 is located in the trachea. When connected to a ventilator, oxygen is released from the side hole 24, which can diffuse oxygen into the contralateral lung.

[0043] As a specific example of the above embodiments, the length of the handle body 11 is 70 mm and the diameter is 13 mm or 15 mm. The handle body 11 with a diameter of 13 mm is used as the tube of a pediatric bronchoscope. As a specific example of the above embodiment, the straight side tube 15 is located 30 mm from the proximal end of the endpiece 11. The straight side tube 15 forms a 90° angle with the endpiece 11. The diameter of the straight side tube 15 is 15 mm and the length is 20 mm. The normal frequency jet connector can be connected to the endpiece 11 by connecting the straight side tube 15 through the straight connector 16 to connect to the jet ventilator. A standard ordinary ventilator or anesthesia machine can be directly connected to the endpiece 11 through the straight side tube 15.

[0044] As a specific example of the above embodiment, the oblique side tube 13 is disposed 15 mm away from the distal end of the handle body 11. The oblique side tube 13 forms a 30° angle with the handle body 11. The oblique side tube 13 extends obliquely upward from the handle body 11. The diameter of the oblique side tube 13 is 15 mm and the length is 20 mm. The high-frequency jet connector can be connected to the oblique side tube 13 through the oblique connector 14 to connect to the handle body 11, so as to connect to the jet ventilator.

[0045] When the oblique side tube 13 or the straight side tube 15 is not in use, it can be sealed with a rubber cap of the appropriate size.

[0046] As a specific example of the above embodiment, the expander 41 is a rigid plastic pipe, including a distal section, a middle section, and a proximal section. The distal section, middle section, and proximal section of the expander 41 are integrally formed. The distal section of the expander 41 is 60 mm long and has a tapered structure with a diameter that smoothly transitions from 3 mm to 11 mm from distal to proximal. The middle section of the expander 41 can be 400 mm long and 11 mm in diameter. The proximal section of the expander 41 is 20 mm long and 14 mm in diameter. Several 2*2 mm cut holes 42 are provided at a distance of 10 mm to 100 mm from the distal end of the expander 41.

[0047] As a specific example of the above embodiment, the distal segment of the expander 41 is 40 mm long, has a tapered structure, and a diameter that smoothly transitions from 3 mm to 6 mm from distal to proximal; the middle segment of the expander 41 is 300 mm long and 6 mm in diameter; the proximal segment of the expander 41 is 20 mm long and 12 mm in diameter; several 2*2 mm incision holes 42 are provided at a distance of 10 mm to 100 mm from the distal end of the expander 41; this size is suitable for pediatric patients.

[0048] As a preferred example of the above embodiment, the dilator 41 has holes 42 distributed at a density of no less than 30, which are used to diffuse oxygen into the lungs and decompress during dilation.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A disposable speculum, characterized in that, It includes a main body (11) of the lens handle, a lens tube, and an expander (41). The proximal end of the lens tube and the distal end of the main body (11) of the lens handle are detachably connected. The distal end of the lens tube is a beveled surface. A miniature camera (5) is provided at the distal end of the lens tube. The expander (41) is a hollow tube. The proximal end of the expander (41) and the distal end of the lens handle body (11) are detachably connected. The outer diameter of the expander (41) is smaller than the inner diameter of the lens tube. The length of the expander (41) is greater than the length of the lens tube. A third connector (43) is provided at the proximal end of the expander (41). The expander (41) is inserted into the lens handle body (11) through the third connector (43). The diameter of the distal end of the expander (41) gradually decreases. Several holes (42) are opened on the distal end of the expander (41).

2. The disposable, see-through rigid mirror of claim 1, wherein, The lens tube is either a first lens tube (31) or a second lens tube (21). The inner diameter of the first lens tube (31) is greater than the outer diameter of the second lens tube (21). The length of the second lens tube (21) is greater than the length of the first lens tube (31). The second lens tube (21) can be inserted into the first lens tube (31).

3. The disposable rigid contact lens as described in claim 2, characterized in that, The first end of the first endoscope tube (31) is provided with a first connector (32), and a first occlusion balloon (33) is provided on the first endoscope tube (31). The first occlusion balloon (33) is close to the far end of the first endoscope tube (31), and the first occlusion balloon (33) is connected to the first inflatable balloon (35) through the first connecting tube (34).

4. The disposable rigid contact lens as described in claim 2, characterized in that, The second endoscope tube (21) is provided with a second connector (22) at its proximal end. The second endoscope tube (21) is provided with a second occlusion balloon (23). The second endoscope tube (21) has two sets of side holes (24) symmetrically opened. The side holes (24) are close to the distal end of the second endoscope tube (21). The second occlusion balloon (23) is located between the side holes (24) and the proximal end of the second endoscope tube (21) and is close to the side holes (24). The second occlusion balloon (23) is connected to the second inflatable balloon (26) through the second connecting tube (25).

5. The disposable rigid contact lens as described in claim 1, characterized in that, A detachable cap (12) is provided at the proximal end of the main body (11) of the mirror handle.

6. The disposable rigid contact lens as described in claim 1, characterized in that, The main body (11) of the mirror handle is provided with a slanted tube (13) and a straight tube (15). The slanted tube (13) is located near the far end of the main body (11), and the straight tube (15) is located near the proximal end of the main body (11). A detachable slanted connector (14) is provided inside the slanted tube (13), and a detachable straight connector (16) is provided inside the straight tube (15).

7. The disposable rigid contact lens as described in claim 1, characterized in that, The lens tube is provided with a video receiver interface (51), which is connected to a miniature camera via an electrical connection cable (52).

8. The disposable rigid contact lens as described in claim 1, characterized in that, An LED light is provided at the distal end of the endoscope tube.

9. The disposable rigid contact lens as described in claim 1, characterized in that, The main body (11) of the mirror handle and the mirror tube are rotatably connected.

10. The disposable rigid contact lens as described in claim 1, characterized in that, The main body (11) of the mirror handle and the expander (41) are rotatably connected.

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