Trachea guiding device and guiding method of trachea diagnosis and treatment instrument
By using flexible catheter and outer catheter in the tracheal guide device, using bifurcation catheter and scale marking, the difficulty of tracheal diagnosis and treatment instruments entering the tracheal tube is solved, and the rapid, safe and efficient entry of tracheal diagnosis and treatment instruments is achieved, reducing the risk of tracheal diagnosis and treatment instruments. The risk of surgery.
Patent Information
- Application Number
- CN202411376959.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-01-03
AI Technical Summary
Tracheal diagnosis and treatment equipment is difficult to operate when entering the trachea, and the catheter enters the esophagus due to the automatic closing of the epiglottis, resulting in delays in surgery or danger.
Design a tracheal guidance device, including a flexible catheter and an outer sleeve sleeve on the flexible catheter. The middle section of the flexible catheter is equipped with a deformable bifurcation catheter. The outer sleeve is used to make the bifurcation catheter pop out under the epiglottis to prevent the epiglottis from closing the tracheal inlet. And ensure the accurate position and direction of the bifurcation catheter through scales and indicators. Combined with the guidance method of tracheal diagnosis and treatment instruments, the patient's swallowing and exhalation movements control the position of the bifurcation catheter and the withdrawal of the outer catheter, so that the catheter can enter the trachea smoothly. .
It improves the convenience of tracheal diagnosis and treatment equipment entering the trachea, reduces the difficulty of operation, ensures the simplicity and safety of the operation, and saves patients' valuable time.
Smart Images
Figure CN119236248A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of medical instruments, and in particular to a tracheal guiding device and a guiding method of a tracheal diagnosis and treatment instrument. Background Art
[0002] Endotracheal intubation is a method of inserting a special endotracheal tube through the pharynx and epiglottis into the trachea, creating conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction.
[0003] The physiological structure of the pharynx is particularly complex. It connects to the nasal cavity, eyes (nasolacrimal duct), and ears (Eustachian tube) upward, to the oral cavity forward, and to the esophagus and trachea downward. The switch that selects the esophagus and trachea is the epiglottis.
[0004] However, in the actual operation process, when the catheter passes through the pharynx, due to the entry of foreign matter, people will swallow unconsciously. During the swallowing process, the epiglottis will automatically close the entrance of the trachea, allowing the swallowed material to enter the esophagus on the side. The epiglottis closes the trachea, and the catheter and other instruments cannot enter the trachea, but enter the esophagus, which will bring greater difficulty and mental pressure to doctors who want to diagnose and treat tracheal diseases. In addition, in the event of emergency surgery, if the catheter and other instruments cannot enter quickly, time delay may cause life-threatening danger (people live for a breath, if they cannot breathe, they are suffocated). Therefore, the psychological feeling of tracheal interventional surgery for new doctors is: this is a difficult and high-risk operation. For this reason, it is necessary to develop a guiding device that can smoothly deliver tracheal diagnosis and treatment instruments from the pharynx into the trachea, improve the convenience of operation, reduce the requirements for doctors' operating skills, and achieve speed, so as to provide favorable help for patient treatment. Before this application, there were many patent public documents in this regard at home and abroad, which also proved that there was a demand in this regard in clinical practice, but the current patents could not be simple, safe and efficient. Summary of the invention
[0005] The purpose of the present invention is to provide a tracheal guiding device and a guiding method for tracheal diagnosis and treatment instruments, so as to solve the problem that the current tracheal diagnosis and treatment instruments are inconvenient to enter the trachea and difficult to operate.
[0006] The technical solution adopted by the present invention to solve its technical problem is: a tracheal guide device, including a flexible catheter and an outer sleeve sleeved on the flexible catheter, the middle section of the flexible catheter is provided with a deformable bifurcated catheter; the bifurcated catheter is tilted and forked outward in the absence of external force, and is deformed and retracted toward the side of the flexible catheter under the action of the outer sleeve.
[0007] In order to facilitate hand-held operation and smooth introduction into the throat, the front end of the flexible catheter is provided with a conical introduction portion for easy introduction, and the rear end of the flexible catheter is provided with a first end cap for easy hand-holding, and the first end cap is sleeved on the flexible catheter; the end of the sleeve close to the first end cap is provided with a second end cap.
[0008] In order to facilitate the determination of the depth of the bifurcated catheter entering the throat, so that when the bifurcated catheter pops out, it can be accurately blocked under the epiglottis to prevent the epiglottis from fitting to the entrance of the trachea and closing the trachea, a scale for displaying the insertion depth of the bifurcated catheter is provided on the flexible catheter.
[0009] In order to facilitate determination of the ejection direction of the bifurcated catheter, an indication mark for indicating the ejection direction of the bifurcated catheter is provided on the first end cap.
[0010] In order to ensure smooth entry of the flexible catheter and avoid entry difficulties caused by local protrusions, a clearance groove is provided on the flexible catheter, and the bifurcated catheter is placed in the clearance groove under the action of the outer sleeve.
[0011] In order to facilitate the ejection of the bifurcated catheter, a beveled port is provided at the end of the bifurcated catheter, and a beveled surface parallel to the beveled port is provided at one end of the clearance groove corresponding to the beveled port.
[0012] Furthermore, a gap is left between the beveled port and the beveled surface for the bifurcated catheter to pop out.
[0013] In order to enable the bifurcated catheter to guide the tracheal diagnosis and treatment instrument into the trachea in a direction parallel to the trachea and avoid the tracheal diagnosis and treatment instrument from damaging the trachea, the bifurcated catheter includes an inclined section connected to the flexible catheter and a vertical section parallel to the flexible catheter.
[0014] The guiding method of the tracheal diagnosis and treatment instrument comprises the following steps:
[0015] 1) Putting the outer tube on the flexible catheter, so that the outer tube is located at the position of the bifurcated catheter, and retracting the bifurcated catheter; then operating the first end cap to push the flexible catheter together with the outer tube from the mouth or nose to the pharynx until the conical introduction part 11 reaches the patient's pharynx;
[0016] 2) Ask the patient to swallow to open the esophagus. When the patient swallows, continue to insert the flexible catheter together with the outer tube into the patient's body to the set depth, so that the bifurcated catheter reaches below the epiglottis, and stop inserting the catheter into the patient's body;
[0017] 3) Let the patient exhale or speak so that the epiglottis opens and does not fit the entrance of the trachea. At the same time, pull the second end cap to withdraw the outer tube. At this time, the flexible catheter remains stationary, so that the bifurcated catheter is separated from the outer tube and pops out. The front end of the bifurcated catheter is located at the entrance of the trachea.
[0018] 4) Then push the flexible catheter forward for a distance to allow the bifurcated catheter to be inserted into the trachea;
[0019] 5) Insert an adapted tracheal guidewire at the rear side of the first end cap, and push the tracheal guidewire forward along the first chamber. When the head of the tracheal guidewire reaches the vicinity of the bifurcated catheter tube opening, ask the patient to continue to exhale, and gently and slowly push the guidewire in so that it passes through the glottis smoothly. After the head of the tracheal guidewire passes through the glottis, tell the patient to breathe normally, and continue to push the guidewire forward for a distance before stopping. While keeping the guidewire relatively still, withdraw the second end cap, withdraw the flexible catheter and the outer sleeve together from the body, and slide over the external part of the guidewire to separate the flexible catheter from the guidewire. During this process, the relative position of the guidewire and the patient remains unchanged.
[0020] 6) Insert tracheal diagnostic and treatment instruments along the guide wire left in the patient's body to complete the operation.
[0021] Beneficial effects of the present invention: The present invention configures a bifurcated catheter on a flexible catheter and combines it with an outer sleeve. After the flexible catheter is sent into the throat, the outer sleeve is pulled out to make the bifurcated catheter pop out and block under the epiglottis, preventing the epiglottis from closing the glottis, so that tracheal diagnosis and treatment instruments can pass through the flexible catheter and along the bifurcated catheter to smoothly enter the trachea for surgical operations. This structure greatly improves the convenience of tracheal diagnosis and treatment instruments entering the trachea, reduces the difficulty of tracheal diagnosis and treatment instruments entering the trachea, and ensures the convenience of surgical operations.
[0022] The beneficial effects of the present invention are as follows: the present invention configures a bifurcated catheter on the flexible catheter and combines it with an outer sleeve. After the flexible catheter is sent into the esophagus, when the patient speaks or exhales, the outer sleeve is withdrawn at the same time, so that the bifurcated catheter pops out to block under the epiglottis, avoiding the epiglottis from fitting to the entrance of the trachea. The oblique cut port of the bifurcated catheter faces the entrance of the trachea, and the guide wire and other guiding instruments used for tracheal interventional surgery are smoothly introduced into the trachea from the first end cap along the lumen of the bifurcated catheter, creating convenience for subsequent diagnosis and treatment operations, reducing the difficulty of such operations, and ensuring the convenience of surgical operations. The present invention is simple to operate and takes a short time, saving precious time for the treatment of patients.
[0023] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of the present invention.
[0025] Figure 2 for Figure 1 Partial cross-sectional view of the bifurcation catheter.
[0026] Figure 3 It is a schematic diagram of the structure of the bifurcated catheter of the present invention in an open state.
[0027] Figure 4 This is a schematic diagram of the actual use of the present invention. DETAILED DESCRIPTION
[0028] Example: Figures 1 to 4 As shown, a tracheal guide device comprises a flexible catheter 1 and an outer sleeve 2 sleeved on the flexible catheter 1, wherein the middle section of the flexible catheter 1 is provided with a deformable bifurcated catheter 3; the bifurcated catheter 3 is tilted and forked outward without external force, and deformed and retracted toward the side of the flexible catheter 1 under the action of the outer sleeve 2. Preferably, the flexible catheter 1 and the outer sleeve 2 are both made of medical transparent plastic material. The specific matching and docking structure of the bifurcated catheter 3 and the flexible catheter 1 is: the middle section of the flexible catheter 1 divides the inner cavity of the flexible catheter 1 into two independent chambers, a first chamber 17 and a second chamber 18, through the middle partition plate 4, and then cuts off from the end of the first chamber 17, and then cuts off from the middle of the partition plate 4, so that the corresponding part of the first chamber 17 forms a bifurcated catheter 3 with a lower end separated from the flexible catheter 1 and an upper end connected to the flexible catheter 1. The length of the partition plate 4 can be the same as that of the bifurcated catheter 3 or extend all the way to the end of the flexible catheter 1. After cutting along the middle position of the partition plate 4, the bifurcated catheter 3 is opened without force by heating and shaping. From the static structural point of view, it can be understood that: the flexible catheter 1 is provided with a clearance groove 13, and the bifurcated catheter 3 is placed in the clearance groove 13 under the action of the outer sleeve 2, and the end of the bifurcated catheter 3 is provided with a beveled port 31, and the end of the clearance groove 13 corresponding to the beveled port 31 is provided with a beveled surface 14 parallel to the beveled port 31. In order to prevent the guide wire from being stuck between the beveled port 31 and the beveled surface 14 when exiting, a gap 15 is left between the beveled port 31 and the beveled surface 14 for the bifurcated catheter 3 to pop out.
[0029] For easy introduction, the front end of the flexible conduit 1 is provided with a tapered introduction portion 11 for easy introduction. For easy hand-held operation, the rear end of the flexible conduit 1 is provided with a first end cap 12 for easy hand-held operation, and the first end cap 12 is sleeved on the flexible conduit 1; the end of the sleeve 2 close to the first end cap 12 is provided with a second end cap 21.
[0030] In order to facilitate control of the insertion depth, the flexible catheter 1 is provided with a scale 19 for displaying the insertion depth of the bifurcated catheter 3 .
[0031] In order to ensure that the bifurcated catheter 3 can be opened along the direction of the glottis, an indication mark 110 for indicating the ejection direction of the bifurcated catheter 3 is provided on the first end cap 12 .
[0032] In order to ensure that the tracheal diagnosis and treatment instrument enters the trachea in a vertical direction, the bifurcated catheter 3 includes an inclined section 32 connected to the flexible catheter 1 and a vertical section 33 parallel to the flexible catheter 1 .
[0033] The method for guiding the tracheal diagnosis and treatment instrument using the tracheal guide device has the following specific operation steps:
[0034] 1) Put the outer sleeve 2 on the flexible catheter 1, and place it in the position as shown in the figure. Figure 1 As shown, the outer tube 2 is located at the position of the bifurcated catheter 3, and the bifurcated catheter 3 is folded. Then the first end cap 12 is operated to push the flexible catheter 1 together with the outer tube 2 from the oral cavity 100 or the nasal cavity 200 to the pharynx 300, and the conical introduction part 11 of the flexible catheter 1 is inserted into the pharynx 300 of the patient through the oral cavity 100 (the patient needs to wear a mouth pad) or through the nasal cavity 200. During the operation, it should be noted that when looking directly at the indicator mark 110, the indicator mark 110 is below the first end cap 12, that is, it points to the six o'clock position.
[0035] 2) Ask the patient to swallow, and continue to insert the flexible catheter 1 together with the outer tube 2 into the patient's body until the scale value on the tube body of the flexible catheter 1 corresponding to the incisor 400 is the scale value expected by the operator, that is, the bifurcated catheter 3 reaches below the epiglottis 500, and the insertion into the patient's body is stopped. At this time, the conical introduction portion 11 of the flexible catheter 1 enters the esophagus 800.
[0036] 3) Let the patient exhale or speak so that the epiglottis 500 opens and does not fit the entrance of the trachea 600. At the same time, pull the second end cap 21 to withdraw the outer sleeve 2. At this time, the flexible catheter 1 remains stationary. When the second end cap 21 moves to the first end cap 12, it stops moving, so that the bifurcated catheter 3 is completely separated from the outer sleeve 2, which facilitates the bifurcated catheter 3 to be completely ejected. At this time, the front end of the bifurcated catheter 3 is located at the entrance of the trachea 600.
[0037] 4) Then, the flexible catheter 1 is gently pushed forward about 1 cm to allow the bifurcated catheter 3 to be inserted into the trachea 600 .
[0038] 5) Insert a suitable tracheal guidewire at the rear side of the first end cap 12, and push the tracheal guidewire forward along the first chamber 17. When the head of the tracheal guidewire reaches the vicinity of the bifurcated catheter tube port 31, ask the patient to continue to exhale, and gently and slowly push the guidewire in about 5 cm, so that it can pass smoothly through the glottis 700. After the head of the tracheal guidewire passes through the glottis 700, tell the patient to breathe normally, push the guidewire in about 5 cm, keep the guidewire relatively still, and withdraw the second end cap 21, so that the flexible catheter 1 and the outer tube 2 are withdrawn from the body together, and slide over the external part of the guidewire to separate the flexible catheter 1 from the guidewire. In this process, the relative position of the guidewire and the patient remains unchanged.
[0039] 6) Using the guide wire (this is a "guide") left in the patient's body, you can easily guide the insertion of endoscopes, endotracheal tubes, endotracheal stent delivery devices and other tracheal diagnostic and treatment instruments to complete the operation.
[0040] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.
Claims
1. A tracheal guiding device, characterized in that: The invention comprises a flexible catheter (1) and an outer sleeve (2) sleeved on the flexible catheter (1); a deformable bifurcated catheter (3) is arranged in the middle section of the flexible catheter (1); the bifurcated catheter (3) tilts outwards when no external force is applied, and deforms and retracts toward the side of the flexible catheter (1) under the action of the outer sleeve (2).
2. The tracheal guiding device according to claim 1, characterized in that: The front end of the flexible catheter (1) is provided with a tapered introduction portion (11) for easy introduction, and the rear end of the flexible catheter (1) is provided with a first end cap (12) for easy handholding, wherein the first end cap (12) is sleeved on the flexible catheter (1); and the end of the sleeve (2) close to the first end cap (12) is provided with a second end cap (21).
3. The tracheal guiding device according to claim 1, characterized in that: The flexible catheter (1) is provided with a scale (19) for displaying the insertion depth of the bifurcated catheter (3).
4. The tracheal guiding device according to claim 2, characterized in that: The first end cap (12) is provided with an indication mark (110) for indicating the ejection direction of the bifurcated catheter (3).
5. The tracheal guiding device according to claim 2, characterized in that: The flexible catheter (1) is provided with a clearance groove (13), and the bifurcated catheter (3) is placed in the clearance groove (13) under the action of the outer sleeve (2).
6. The tracheal guiding device according to claim 5, characterized in that: The end of the bifurcated catheter (3) is provided with a beveled port (31), and the end of the clearance groove (13) corresponding to the beveled port (31) is provided with a beveled surface (14) parallel to the beveled port (31).
7. The tracheal guiding device according to claim 6, characterized in that: A gap (15) is left between the beveled port (31) and the beveled surface (14) for the bifurcated catheter (3) to pop out.
8. The tracheal guiding device according to claim 1, characterized in that: The bifurcated catheter (3) comprises an inclined section (32) connected to the flexible catheter (1) and a vertical section (33) parallel to the flexible catheter (1).
9. A method for guiding a tracheal diagnosis and treatment device using the tracheal guiding device according to any one of claims 1 to 8, comprising the following steps: 1) Putting the outer tube on the flexible catheter, so that the outer tube is located at the position of the bifurcated catheter, and retracting the bifurcated catheter; then operating the first end cap to push the flexible catheter together with the outer tube from the mouth or nose to the pharynx until the conical introduction part 11 reaches the patient's pharynx; 2) Ask the patient to swallow to open the esophagus. When the patient swallows, continue to insert the flexible catheter together with the outer tube into the patient's body to the set depth, so that the bifurcated catheter reaches below the epiglottis, and stop inserting the catheter into the patient's body; 3) Let the patient exhale or speak so that the epiglottis opens and does not fit the entrance of the trachea. At the same time, pull the second end cap to withdraw the outer tube. At this time, the flexible catheter remains stationary, so that the bifurcated catheter is separated from the outer tube and pops out. The front end of the bifurcated catheter is located at the entrance of the trachea. 4) Then push the flexible catheter forward for a distance to allow the bifurcated catheter to be inserted into the trachea; 5) Insert an adapted tracheal guidewire at the rear side of the first end cap, and push the tracheal guidewire forward along the first chamber. When the head of the tracheal guidewire reaches the vicinity of the bifurcated catheter tube opening, ask the patient to continue to exhale, and gently and slowly push the guidewire in so that it passes through the glottis smoothly. After the head of the tracheal guidewire passes through the glottis, tell the patient to breathe normally, and continue to push the guidewire forward for a distance before stopping. While keeping the guidewire relatively still, withdraw the second end cap, withdraw the flexible catheter and the outer sleeve together from the body, and slide over the external part of the guidewire to separate the flexible catheter from the guidewire. During this process, the relative position of the guidewire and the patient remains unchanged. 6) Insert the tracheal treatment instrument along the guide wire left in the patient's body and perform the treatment operation.