A visual bronchoscope

Abstract

The present invention discloses a visual bronchoscope, comprising: a connecting tube, which is used to be connected to a ventilator; a tracheal tube, which is connected to the connecting tube, the tracheal tube is configured to have a variable diameter, and the tracheal tube is suitable for being inserted into a tracheal tube; a control device, which is arranged at the connecting tube, the control device is connected to the tracheal tube, and the control device is used to adjust the diameter of the tracheal tube; a camera, which is arranged at the opening of the tracheal tube away from the connecting tube in the axial direction, and a signal line is arranged on the camera, which adheres to the inner side wall of the tracheal tube and the connecting tube and extends outward to be connected to a display device. The arranged tracheal tube and the camera can guide the withdrawal of the tracheal tube to avoid the tip of the tracheal tube from being withdrawn in place, and the diameter of the tracheal tube is variable. When the diameter of the tracheal tube becomes larger, the tracheal tube itself can be used as a ventilation tube, thereby avoiding the patient's hypoxia caused by the tip of the tracheal tube being withdrawn too much to the outside of the glottis.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a visual bronchoscope. Background Art

[0002] Percutaneous tracheotomy is a technique commonly used to cut open the trachea of ​​patients in the ICU. During percutaneous tracheotomy, how to safely and conveniently withdraw the endotracheal tube that has occupied the airway space is a major problem that bothers clinicians. Specifically, if the tip of the endotracheal tube that has occupied the airway space is not withdrawn into place (inadequate withdrawal means that the tip of the endotracheal tube has not been withdrawn to the position between the percutaneous tracheostomy puncture point and the glottis), it will affect the insertion of the guide wire and puncture needle during the percutaneous tracheotomy, and the tube needs to be withdrawn repeatedly until the tip of the tube is withdrawn to the position between the percutaneous tracheostomy puncture point and the glottis, which will affect the progress of the operation and cause delays or even failure of the operation; and if the tip of the endotracheal tube that has occupied the airway space is withdrawn too much, the tip of the endotracheal tube may be withdrawn outside the glottis, thereby causing an emergency airway situation, and the patient needs to be re-intubated immediately, which will cause the patient to suffer the double blow of anesthesia and endotracheal intubation again, which not only increases the patient's medical expenses and causes further damage to the patient's throat tissue, but also in severe cases even endangers the patient's life safety. Therefore, it is urgent to design a device to safely and quickly achieve the withdrawal of the endotracheal tube. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a visual bronchoscope.

[0004] The technical solution of the present invention is as follows: a visual bronchoscope, comprising: a connecting tube, the connecting tube is used to be connected to a ventilator; a tracheal tube, the tracheal tube is connected to the connecting tube, the tracheal tube is constructed to have a variable diameter, and the tracheal tube is suitable for being inserted into a tracheal tube; a control device, the control device is arranged at the connecting tube, the control device is connected to the tracheal tube, and the control device is used to adjust the diameter of the tracheal tube; a camera, the camera is arranged at an opening of the tracheal tube axially away from the connecting tube, a signal line is provided on the camera, the signal line is adhered to the tracheal tube and the inner side wall of the connecting tube and extends outward to be connected to a display device.

[0005] Furthermore, a portion of the outer peripheral wall of the tracheal tube close to the connecting tube is provided with a scale for guiding the withdrawal of the tracheal tube.

[0006] Furthermore, the axial opening of the tracheal tube away from the connecting tube is an elliptical opening.

[0007] Furthermore, the length of the endotracheal tube is 5 cm longer than the length of the corresponding endotracheal tube.

[0008] Further, the tracheal tube includes a tube skin and a skeleton, the skeleton includes a diameter adjustment ring and an axial adjustment strip, the diameter adjustment rings are multiple, and the multiple diameter adjustment rings are arranged at intervals along the axial direction of the tracheal tube, the axial adjustment strip is connected between any two adjacent diameter adjustment rings, the axial adjustment strips are multiple, and the multiple axial adjustment strips are arranged at intervals along the circumference of the tracheal tube, and the tube skin is sleeved on the diameter adjustment ring and the axial adjustment strip; the diameter adjustment ring and the axial adjustment strip are both made of shape memory alloy material, the tube skin is made of elastic material, the control device is used to control the temperature of the diameter adjustment ring and the axial adjustment strip, wherein the shape of the diameter adjustment ring changes with the temperature of the diameter adjustment ring to adjust the diameter of the tracheal tube, and the axial adjustment strip changes with the temperature of the axial adjustment strip to adjust the length of the tracheal tube; the signal line is arranged in the diameter adjustment ring and connected to the inner wall of the tube skin.

[0009] Furthermore, along the circumferential direction of the tracheal tube, the diameter adjustment ring is constructed into a corrugated ring with wave crests and wave troughs connected alternately, and along the axial direction of the tracheal tube, the axial adjustment strip is constructed into a wavy line, and the axial adjustment strip is connected to the wave troughs of two adjacent diameter adjustment rings.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] When the device is in use, the connecting tube is connected to the Y-tube of the ventilator, the endotracheal tube is placed on the endotracheal tube, and when the tip of the endotracheal tube has not exited the glottis of the patient, the endotracheal tube supplies gas to the patient, and the endotracheal tube is kept in a state of smaller diameter. The endotracheal tube is only used to guide the withdrawal of the endotracheal tube and to observe the tracheotomy operation process. When the tip of the endotracheal tube exits the glottis of the patient, the diameter of the endotracheal tube is adjusted by the control device to be in a state of larger diameter, and then the ventilator starts to pass gas into the endotracheal tube through the connecting tube. At this time, the endotracheal tube is not only used to peek into the trachea, but also to During the incision operation, it also serves as a temporary ventilation tube to supply air and oxygen to the patient to prevent the patient from hypoxia. The tracheal tube and camera thus arranged can guide the withdrawal of the tracheal tube to prevent the tip of the tracheal tube from not being withdrawn properly. The diameter of the tracheal tube is variable. When the diameter of the tracheal tube becomes larger, the tracheal tube itself can be used as a ventilation tube, thereby preventing the patient from hypoxia caused by the tip of the tracheal tube being withdrawn too much. The device overcomes the problems of the tip of the tracheal tube not being withdrawn properly or being withdrawn too much when withdrawing the tracheal tube during percutaneous tracheotomy, and has a simple structure and is easy to use.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0014] Figure 1 is a stereoscopic view of the visual bronchoscope of the present invention;

[0015] Figure 2 is a cross-sectional view of an endotracheal tube of the present invention;

[0016] Figure 3 is a front view of the endotracheal tube of the present invention;

[0017] Figure 4 is a stereoscopic view of the skeleton of the endotracheal tube of the present invention;

[0018] Figure 5 It is a schematic diagram of the endotracheal tube of the present invention becoming larger in diameter.

[0019] Reference numerals:

[0020] 1. Connecting tube; 2. Tracheal tube; 3. Control device; 4. Camera; 5. Signal line; 6. Display device; 7. Scale; 8. Oval mouth; 9. Tube skin; 10. Diameter adjustment ring; 11. Axial adjustment strip. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0025] Please refer to the following drawings Figure 1-Figure 5 A visual bronchoscope according to an embodiment of the present invention is described. The device includes a connecting tube 1, a tracheal tube 2, a control device 3 and a camera 4.

[0026] like Figure 1 As shown, the connecting tube 1 is used to be connected to a ventilator, and the tracheal tube 2 is connected to the connecting tube 1, so that the ventilator can supply air to the tracheal tube 2 through the connecting tube 1. The tracheal tube 2 is configured to have a variable diameter, that is, the inner diameter and outer diameter of the tracheal tube 2 can be enlarged or reduced, and the tracheal tube 2 is suitable for being inserted into a tracheal tube. The control device 3 is arranged at the connecting tube 1, and the control device 3 is connected to the tracheal tube 2. The control device 3 is used to adjust the diameter of the tracheal tube 2. The camera 4 is arranged at the opening of the tracheal tube 2 away from the connecting tube 1 in the axial direction. The camera 4 is provided with a signal line 5, which adheres to the inner side wall of the tracheal tube 2 and the connecting tube 1 and extends outward to be connected to the display device 6. The arranged camera 4 can be used to detect the operation process in the trachea during percutaneous tracheotomy, so that the operation process in the trachea during percutaneous tracheotomy can be visualized, and the possibility of damage to tissues such as the airway and esophagus can be reduced.

[0027] Specifically, when the device is in use, the connecting tube 1 is connected to the Y-tube of the ventilator, the endotracheal tube is covered on the endotracheal tube 2, and when the tip of the endotracheal tube has not exited the glottis of the patient, the endotracheal tube supplies air to the patient, and the endotracheal tube 2 is kept in a state of small diameter. The endotracheal tube 2 is only used to guide the withdrawal of the endotracheal tube and to peek at the tracheotomy operation process. When the tip of the endotracheal tube exits the glottis of the patient, the diameter of the endotracheal tube 2 is adjusted by the control device 3 to be in a state of large diameter, and then the ventilator starts to pass gas to the endotracheal tube 2 through the connecting tube 1. At this time, the endotracheal tube 2 is not only used to peek at the endotracheal tube, but also to control the endotracheal tube 2 to prevent the endotracheal tube from being removed. During the tracheotomy operation, the tracheal tube 2 and the camera 4 provided hereby can guide the withdrawal of the tracheal tube to prevent the tip of the tracheal tube from not being withdrawn properly. The diameter of the tracheal tube 2 can be changed. When the diameter of the tracheal tube 2 becomes larger, the tracheal tube 2 itself can be used as a ventilator, thereby preventing the tip of the tracheal tube from being withdrawn too much outside the glottis and causing hypoxia in the patient. The device overcomes the problem of the tip of the tracheal tube not being withdrawn properly or being withdrawn too much when withdrawing the tracheal tube during percutaneous tracheotomy, and has a simple structure and is easy to use.

[0028] In this embodiment, Figure 1 As shown, a portion of the outer wall of the tracheal tube 2 close to the connecting tube 1 is provided with a scale 7 for guiding the withdrawal of the tracheal tube, thereby guiding the withdrawal of the tracheal tube more accurately.

[0029] In this embodiment, Figure 1 As shown, the axial opening of the tracheal tube 2 away from the connecting tube 1 is an elliptical opening 8, that is, the tip opening of the tracheal tube 2 is an elliptical opening 8, so that when the tracheal tube 2 is not withdrawn in place, the tip of the tracheal tube 2 can be made to have no or little influence on the operation of percutaneous tracheotomy. Specifically, the tip of the tracheal tube 2 is designed to be an inclined elliptical opening, the length of the tracheal tube 2 that can be adjusted close to the front wall of the trachea is slightly shorter, and the length of the tracheal tube 2 that can be adjusted close to the rear wall of the trachea is slightly longer, so that when the rear wall of the tip of the tracheal tube 2 is not withdrawn in place, the front wall of the tracheal tube 2 will not affect the operation of percutaneous tracheotomy, especially will not affect the insertion of the puncture needle and the guide wire in the percutaneous tracheotomy, and the slightly longer rear wall of the tracheal tube 2 can also protect the puncture needle from accidentally injuring the tracheal rear wall tissue and the esophagus.

[0030] In this embodiment, the length of the endotracheal tube 2 is 5 cm longer than the length of the corresponding endotracheal tube.

[0031] It should be noted that there are many structures that can achieve the change in the diameter of the tracheal tube 2. A specific implementation method is given below.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, the tracheal tube 2 includes a tube skin 9 and a frame, the frame includes a diameter adjustment ring 10 and an axial adjustment strip 11, there are multiple diameter adjustment rings 10, and the multiple diameter adjustment rings 10 are arranged at intervals along the axial direction of the tracheal tube 2, an axial adjustment strip 11 is connected between any two adjacent diameter adjustment rings 10, there are multiple axial adjustment strips 11, and the multiple axial adjustment strips 11 are arranged at intervals along the circumference of the tracheal tube 2, and the tube skin 9 is sleeved on the diameter adjustment ring 10 and the axial adjustment strip 11.

[0033] The diameter adjustment ring 10 and the axial adjustment strip 11 are both made of shape memory alloy material. The shape memory alloy has a shape memory function and can detect changes in ambient temperature and respond;

[0034] The tube skin 9 is made of elastic material and is flexible, so it can shrink or expand as the diameter adjustment ring 10 changes.

[0035] The control device 3 is used to control the temperature of the diameter adjustment ring 10 and the axial adjustment strip 11, wherein the shape of the diameter adjustment ring 10 changes with the temperature of the diameter adjustment ring 10 to adjust the diameter of the tracheal tube 2, and the axial adjustment strip 11 changes with the temperature of the axial adjustment strip 11 to adjust the length of the tracheal tube 2, thereby adjusting the position of the camera 4, and the signal line 5 is arranged in the diameter adjustment ring 10 and connected to the inner wall of the tube skin 9.

[0036] In this embodiment, Figure 4 As shown, along the circumferential direction of the tracheal tube 2, the diameter adjustment ring 10 is constructed into a corrugated ring with wave crests and wave troughs connected alternately, and along the axial direction of the tracheal tube 2, the axial adjustment strip 11 is constructed into a wave line shape, and the axial adjustment strip 11 is connected to the wave troughs of two adjacent diameter adjustment rings 10, thereby facilitating the adjustment of the diameter and axial length of the tracheal tube 2.

[0037] Specifically, the diameter adjustment ring 10 and the axial adjustment strip 11 are made of a shape memory alloy with a full-range shape memory function, and their shapes change with temperature changes. The full-range shape memory function refers to the recovery of the high-temperature phase shape when heated and the change to the low-temperature phase shape with the same shape but opposite orientation when cooled, which is called the full-range memory effect.

[0038] like Figure 3As shown, at room temperature, the diameter adjustment ring 10 partially curls and contracts inwardly, and the diameter of the circumscribed circle is D1; ​​as shown in FIG5 , when the control device 3 controls the temperature of the diameter adjustment ring 10 to increase, the diameter adjustment ring 10 stretches outwardly, and the diameter of its circumscribed circle increases to D2, so that the diameter of the tube skin 9 also increases; when the control device 3 controls the temperature of the diameter adjustment ring 10 to decrease, the degree of inward curling of the diameter adjustment ring 10 increases, and the diameter of its circumscribed circle decreases to D3, so that the diameter of the tube skin 9 also decreases.

[0039] Similarly, when the control device 3 controls the temperature of the axial adjustment strip 11 to increase, the length of the axial adjustment strip 11 increases, and the length of the tube skin 9 increases. When the control device 3 controls the temperature of the axial adjustment strip 11 to decrease, the length of the axial adjustment strip 11 decreases, and the length of the tube skin 9 decreases. In practical applications, the axial adjustment strip 11 and the diameter adjustment ring 10 can both be connected to a power source, and the control device 3 can control the temperature of the axial adjustment strip 11 and the diameter adjustment ring 10 by controlling the current magnitude on the axial adjustment strip 11 and the diameter adjustment ring 10.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A visual bronchoscope, characterized in that: include: A connecting tube, the connecting tube is used to be connected to a ventilator; An endotracheal tube, the endotracheal tube is connected to the connecting tube, the endotracheal tube is configured to have a variable diameter, the endotracheal tube is suitable for being inserted into an endotracheal tube, and a portion of the outer peripheral wall of the endotracheal tube close to the connecting tube is provided with scales for guiding the withdrawal of the endotracheal tube; A control device, the control device is arranged at the connecting tube, the control device is connected to the tracheal tube, and the control device is used to adjust the diameter of the tracheal tube; A camera, the camera being arranged at an opening of the tracheal tube in an axial direction away from the connecting tube, the camera being provided with a signal line, the signal line being adhered to the tracheal tube and the inner side wall of the connecting tube and extending outward to be connected to a display device; Wherein, the tracheal tube comprises a tube skin and a skeleton, the skeleton comprises a diameter adjustment ring and an axial adjustment strip, the diameter adjustment ring is multiple, the multiple diameter adjustment rings are arranged at intervals along the axial direction of the tracheal tube, the axial adjustment strip is connected between any two adjacent diameter adjustment rings, the axial adjustment strip is multiple, the multiple axial adjustment strips are arranged at intervals along the circumference of the tracheal tube, the tube skin is sleeved on the diameter adjustment ring and the axial adjustment strip; the diameter adjustment ring and the axial adjustment strip are both made of shape memory alloy with full-range shape memory function, the tube skin is made of elastic material, the control device is used to control the temperature of the diameter adjustment ring and the axial adjustment strip, wherein the shape of the diameter adjustment ring changes with the temperature of the diameter adjustment ring to adjust the diameter of the tracheal tube, and the axial adjustment strip changes with the temperature of the axial adjustment strip to adjust the length of the tracheal tube; the signal line is arranged in the diameter adjustment ring and connected to the inner wall of the tube skin; Along the circumferential direction of the tracheal tube, the diameter adjustment ring is constructed as a corrugated ring with wave crests and wave troughs connected alternately, and along the axial direction of the tracheal tube, the axial adjustment strip is constructed as a wavy line, and the axial adjustment strip is connected at the troughs of two adjacent diameter adjustment rings.

2. The visual bronchoscope according to claim 1, characterized in that: The axial opening of the tracheal tube away from the connecting tube is an elliptical opening.

3. The visual bronchoscope according to claim 1, characterized in that: The length of the endotracheal tube is 5 cm longer than the length of the corresponding endotracheal tube.

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