Single-lumen bronchial catheter

Abstract

The single-cavity bronchial catheter comprises a catheter body and a fixing assembly, the fixing assembly comprises a fixing piece and movable pieces arranged on the two sides of the fixing piece, a through hole is formed in the fixing piece, the catheter body can penetrate through the through hole, and a limiting assembly is arranged on the inner wall of the through hole. The limiting assembly has a limiting state for fixing and limiting the pipe body and a separating state for separating from the pipe body, opening cavities are formed in the two sides of the fixed part, the movable parts are limited in the opening cavities in a sliding mode, the outer side walls of the movable parts are arc-shaped side edges, the arc-shaped side edges are wrapped with flexible structures, and a locking assembly is arranged in the fixed part. A sliding piece is arranged on the movable piece, and a locking part corresponding to the locking assembly is arranged on the sliding piece. According to the single-cavity bronchial catheter provided by the utility model, the fixed part and the movable part can be combined to form a fixed structure with a proper size, so that the single-cavity bronchial catheter is suitable for different people, and the tracheal catheter is effectively prevented from sliding out of the trachea of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a single-lumen bronchial catheter. Background Art

[0002] One-lung ventilation (OLV) is a technique in which a patient uses only one lung for ventilation through a bronchial tube. Its main purpose is to prevent secretions or blood from the lung on the surgical side from flowing into the healthy side, prevent cross infection, avoid expansion of the lung on the surgical side, and facilitate surgical operations. It is mainly used for anesthesia in cardiothoracic surgery and spinal surgery.

[0003] At present, in the single-lung ventilation process commonly used in clinical practice, a single-lumen bronchial catheter is often used, such as the utility model patent application with authorization announcement number CN205494598 U and name "A Single-lumen Bronchial Catheter", which includes a catheter, the catheter includes a trachea insertion catheter and a catheter for inserting into the bronchus connected in sequence, a bronchial cuff is provided at a distance of 1 to 2 cm from the tip of the catheter; a tracheal cuff is provided at a distance of 1 to 15 cm from the bronchial cuff, and a bronchial cuff inflation port and a tracheal cuff inflation port that are communicated with the bronchial cuff and the tracheal cuff are respectively provided on the outside of the catheter, the bronchial cuff is used to close the gap between the catheter and the inner wall of the bronchial cavity after inflation, and the tracheal cuff is used to close the gap between the catheter and the inner wall of the tracheal cavity after inflation.

[0004] During single-lung ventilation using a single-lumen bronchial tube, after the tracheal tube is inserted into the patient's trachea, it needs to be fixed. However, the upper end of the existing tracheal tube has no fixing structure. Although a positioning air bag is provided at the lower part of the tracheal tube, the human tissue in contact with the tracheal tube is usually in a loose anesthesia state, causing the tracheal tube to easily slip out of the patient's trachea. If not discovered in time, it may easily lead to life-threatening situations. Utility Model Content

[0005] The utility model aims to provide a single-lumen bronchial tube to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A single-lumen bronchial catheter, comprising a tube body, a balloon disposed at the lower end of the tube body, and a fixing assembly, the fixing assembly comprising a fixing part and movable parts disposed on both sides of the fixing body, the fixing part being provided with a through hole through which the tube body can pass, a limiting assembly being provided on the inner wall of the through hole, the limiting assembly having a limiting state for fixing and limiting the tube body and a separating state for separating from the tube body;

[0008] Open cavities are provided on both sides of the fixed part, and the movable part is slidably restricted in the open cavities respectively. The outer wall of the movable part is an arc-shaped side edge, and a flexible structure is wrapped on the arc-shaped side edge. A locking assembly is provided in the fixed part, and a sliding part is provided on the movable part. A locking part corresponding to the locking assembly is provided on the sliding part, and the locking assembly and the locking part have a locked state and an unlocked state.

[0009] In the above-mentioned single-lumen bronchial catheter, a mounting cavity is provided inside the fixing member, a connecting passage is provided between the mounting cavity and the opening cavity, and the locking assembly is arranged in the mounting cavity.

[0010] In the above-mentioned single-lumen bronchial catheter, a sliding bar is fixedly arranged on the movable part, the locking part includes a tooth groove arranged on the sliding bar, a movement groove is arranged in the installation cavity, and the sliding bar is slidably connected in the movement groove.

[0011] The above-mentioned single-lumen endobronchial tube, the locking assembly includes an adjusting member and a locking block, the locking block is provided with locking serrations, a sliding groove is provided in the mounting cavity, the sliding groove is vertically arranged with the moving groove, the locking block is slidably connected in the sliding groove, and the locking serrations can be driven by the adjusting member to move between the first working position and the second working position.

[0012] In the above-mentioned single-lumen bronchial tube, the adjusting member comprises a circular rotating plate, two arc-shaped protrusions are arranged on the circular rotating plate, the locking blocks are arranged on opposite sides of the circular rotating plate, a side of the locking block corresponding to the circular rotating plate is provided with an arc-shaped surface, and the side of each locking block away from the circular rotating plate is provided with the sliding bar.

[0013] The above-mentioned single-lumen bronchial catheter also includes a connecting spring. The locking block is provided with a side plate, and the connecting spring is provided between the side plates of the two locking blocks.

[0014] In the above-mentioned single-lumen bronchial catheter, a cylinder is coaxially arranged on the circular rotating plate, a mounting hole communicating with the mounting cavity is arranged on the fixing member, the cylinder is rotatably mounted in the mounting hole, and a hexagonal connecting groove corresponding to the operating tool is arranged on the cylinder.

[0015] In the above-mentioned single-lumen bronchial catheter, the limiting assembly includes an annular rotating body and a plurality of limiting blocks, a plurality of radial openings are arranged on the side wall of the through hole, the plurality of radial openings are arranged in sequence and spaced apart along the circumference of the through hole, and the limiting block is slidably arranged in each of the radial openings.

[0016] In the above-mentioned single-lumen bronchial catheter, the fixing member is provided with an annular opening cavity, the annular opening cavity is arranged around the through hole, the annular rotating body is rotatably connected in the annular opening cavity, and the annular rotating body rotates along the annular opening cavity to correspondingly drive the limiting block to move along the radial opening.

[0017] In the above technical scheme, the single-lumen bronchial tube provided by the utility model includes a tube body and a fixing assembly, an air bag is arranged at the lower end of the tube body, the fixing assembly includes a fixing piece and movable pieces arranged on both sides of the fixing body, the fixing piece is provided with a through hole for the tube body to pass therethrough, and a limiting assembly is arranged on the inner wall of the through hole, and the position of the fixing piece on the tube body can be adjusted by the limiting assembly, so that the position of the fixing piece is appropriate, and open cavities are arranged on both sides of the fixing piece, and the movable pieces are respectively slidably restricted in the open cavities, so that the movable piece can be adjusted as needed, so that the fixing piece and the movable piece are combined to form a fixed structure of appropriate size, which is suitable for use by different people and can effectively prevent the tracheal tube from slipping out of the patient's trachea. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a single-lumen endobronchial catheter provided in an embodiment of the utility model;

[0020] Figure 2 A top view of a fixing member provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the internal structure of a fixing member provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of a locking assembly provided in an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the installation of a restriction assembly provided in an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of the structure of a restriction component provided in an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Tube body; 11. Airbag; 2. Fixing assembly; 21. Fixing part; 211. Open cavity; 212. Mounting cavity; 213. Connecting channel; 214. Through hole; 215. Radial opening; 216. Annular open cavity; 217. Moving groove; 218. Sliding groove; 22. Movable part; 221. Arc side; 222. Flexible structure; 223. Sliding bar; 224. Tooth groove; 3. Locking assembly; 31. Adjusting part; 32. Locking block; 321. Locking serration; 322. Side plate; 323. Arc surface; 33. Circular rotating plate; 331. Arc protrusion; 34. Connecting spring; 35. Cylinder; 4. Limiting assembly; 41. Annular rotating body; 411. Pressing surface; 42. Limiting block; 421. Arc through opening; 43. Annular spring part. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1-7 As shown, the utility model provides a single-lumen bronchial catheter, including a tube body 1 and a fixing component 2, a balloon 11 is arranged at the lower end of the tube body 1, the fixing component 2 includes a fixing member 21 and movable members 22 arranged on both sides of the fixing body, the fixing member 21 is provided with a through hole 214 for the tube body 1 to penetrate therein, a limiting component 4 is arranged on the inner wall of the through hole 214, the limiting component 4 has a limiting state for fixing and limiting the tube body 1 and a separation state separated from the tube body 1, open cavities 211 are arranged on both sides of the fixing member 21, the movable member 22 is respectively slidably restricted in the open cavities 211, the outer side wall of the movable member 22 is an arc-shaped side edge 221, and a flexible structure 222 is wrapped on the arc-shaped side edge 221, a locking component 3 is arranged in the fixing member 21, a sliding member is arranged on the movable member 22, a locking portion corresponding to the locking component 3 is arranged on the sliding member, and the locking component 3 and the locking portion have a locked state and an unlocked state.

[0030] Specifically, the airbag 11 is arranged at the distal end of the tube body 1. The "distal end" and the "proximal end" are relative to the position of the operator of the single-lumen bronchial tube, that is, the end close to the operator is the "proximal end", and the end away from the operator is the "distal end". The tube body 1 can adopt the tracheal tube in the prior art. This is the prior art and will not be repeated. The improvement of the single-lumen bronchial tube provided in this embodiment over the prior art is that: a fixing component 2 is arranged at the proximal end of the tube body 1, so that after the tube body 1 is inserted into the patient's trachea, the fixing component 2 can be placed in the patient's mouth, the patient's teeth bite on the fixing component 2, and the fixing component 2 is further fixed by an adhesive, and the fixing component 2 is bonded and fixed to the patient's mouth by the adhesive, so that the tracheal tube can be prevented from slipping out of the patient's trachea.

[0031] In this embodiment, the fixing component 2 includes a fixing part 21 and two movable parts 22. The fixing part 21 and the movable parts 22 are combined to form a fixing structure that can be placed in the patient's mouth. The two movable parts 22 are respectively located on the upper and lower sides of the fixing part 21. When in use, the two movable parts 22 correspond to the upper teeth in the patient's mouth and the lower teeth of the patient respectively. In order to avoid hard contact between the movable parts 22 and the patient's teeth, the side of the movable part 22 away from the fixing part 21 is arc-shaped, and its curvature is consistent with the curvature of the patient's oral teeth. The curvatures of the two movable parts 22 can be the same or different, thereby increasing the occlusal area between the teeth and the movable parts 22. At the same time, a flexible structure 222 is wrapped on the arc side 221. The flexible structure 222 can be a silicone layer included on the movable part 22, so that when in use, the patient's teeth are in contact with the silicone layer.

[0032] In this embodiment, an opening cavity 211 is provided on the upper and lower sides of the fixed part 21. The size of the opening cavity 211 is consistent with the size of the movable part 22. The movable part 22 is restricted in sliding in the opening cavity 211. A sliding part is provided on the movable part 22. The sliding part can be a sliding bar or a sliding block. A locking component 3 is also provided inside the fixed part 21. The locking component 3 has two different states when receiving operation: a locked state and an unlocked state. When the locking component 3 is in the unlocked state, the movable part 22 can slide along the opening cavity 211, so that the movable part 22 is adjusted to a suitable position on both sides. Then, the movable part 22 is locked by the locking component 3, so that the movable part 22 is locked in a suitable position. In this way, the distance between the two movable parts 22 can be adjusted as needed, so as to adapt to the use of different patients.

[0033] In this embodiment, in order to adjust the position of the fixing component 2 on the tube body 1, a through hole 214 is provided on the fixing member 21. The size of the through hole 214 is slightly larger than the size of the tube body 1. The tube body 1 is inserted into the through hole 214. The fixing member 21 is provided with a limiting component 4 on the side wall of the through hole 214. The limiting component 4 accepts operation and has a limiting state and a separation state. When the limiting component 4 is in the separation state, the fixing member 21 can move along the tube body 1 to adjust its position. When the fixing member 21 is adjusted to a suitable position, the limiting component 4 is operated to put it in the limiting state. The limiting component 4 contacts the tube body 1 to achieve fixation. In this way, the position of the fixing component 2 can be adjusted as needed during use.

[0034] The utility model provides a single-lumen bronchial tube, comprising a tube body 1 and a fixing assembly 2, wherein an air bag 11 is arranged at the lower end of the tube body 1, the fixing assembly 2 comprises a fixing piece 21 and movable pieces 22 arranged at both sides of the fixing body, the fixing piece 21 is provided with a through hole 214 for the tube body 1 to penetrate therein, the inner wall of the through hole 214 is provided with a limiting assembly 4, the position of the fixing piece 21 on the tube body 1 can be adjusted by the limiting assembly 4, so that the position of the fixing piece 21 is appropriate, open cavities 211 are arranged on both sides of the fixing piece 21, and the movable piece 22 is respectively slidably restricted in the open cavities 211, so that the movable piece 22 can be adjusted as needed, so that the fixing piece 21 and the movable piece 22 are combined to form a fixing structure of appropriate size, which is suitable for use by different groups of people and can effectively prevent the tracheal tube from slipping out of the patient's trachea.

[0035] In this embodiment, preferably, an installation cavity 212 is provided inside the fixing member 21, a connecting channel 213 is provided between the installation cavity 212 and the opening cavity 211, a locking assembly 3 is provided in the installation cavity 212, there are two installation cavities 212, the two installation cavities 212 are respectively provided on both sides of the opening cavity 211, and a locking assembly 3 is provided in each installation cavity 212, a sliding bar 223 is fixedly provided on the movable member 22, the locking portion includes a tooth groove 224 provided on the sliding bar 223, a motion groove 217 is provided in the installation cavity 212, and the sliding bar 223 is fixedly provided on the movable member 22, and the locking portion includes a tooth groove 224 provided on the sliding bar 223. The movable bar 223 is slidably connected in the moving groove 217. Two connecting channels 213 are provided in each open cavity 211, and the connecting channels 213 on the two open cavities 211 are staggered. Two sliding bars 223 are provided on each movable part 22. The movable part 22 is located in the open cavity 211. The sliding bar 223 extends from the connecting channel 213 into the installation cavity 212. The moving groove 217 is arranged along the installation cavity 212 and the connecting channel 213. When the movable part 22 moves along the open cavity 211, the sliding bar 223 slides along the moving groove 217.

[0036] In this embodiment, preferably, the locking assembly 3 includes an adjusting member 31 and a locking block 32, a locking serration 321 is provided on the locking block 32, a sliding groove 218 is provided in the mounting cavity 212, the sliding groove 218 is vertically arranged with the moving groove 217, the locking block 32 is slidably connected in the sliding groove 218, the locking block 32 can be driven by the adjusting member 31 to switch between the first working position and the second working position, when the locking block 32 is located at the first working position, the locking serration 321 is locked with the tooth groove 224, at this time the locking member is in a locked state, the locking assembly 3 locks the movable member 22, when the locking block 32 is located at the second working position, the locking serration 321 is separated from the tooth groove 224, at this time the locking member is in an unlocked state, and the movable member 22 can be adjusted as needed.

[0037] The cam 32 is provided with two protrusions 331 on each side of the locking plate 33, and the cam 32 is provided with two protrusions 332 on each side of the locking plate 33.

[0038] When the locking cam 32 is in the unlocking state, the locking cam 32 is in the unlocking state, and the locking cam 32 is in the unlocking state, so that the locking cam 32 is locked.

[0039] In this embodiment, preferably, a cylinder 35 is coaxially arranged on the circular rotating plate 33, and a mounting hole connected to the mounting cavity 212 is arranged on the fixing member 21. The cylinder 35 is rotatably installed in the mounting hole, and a hexagonal connecting groove corresponding to the operating tool is arranged on the cylinder 35. When in use, the corresponding tool is inserted into the hexagonal connecting groove to rotate the cylinder 35, thereby causing the circular rotating plate 33 to rotate.

[0040] In this embodiment, preferably, the limiting component 4 includes an annular rotating body 41 and a plurality of limiting blocks 42, a plurality of radial openings 215 are provided on the side wall of the through hole 214, and the plurality of radial openings 215 are sequentially spaced along the circumference of the through hole 214, and a limiting block 42 is slidably provided in each radial opening 215, and an annular opening cavity 216 is provided on the fixing member 21, and the annular opening cavity 216 is arranged around the through hole 214, and the depth of the annular opening cavity 216 is less than the depth of the through hole 214, and the annular opening cavity 216 includes an annular inner wall and an annular outer wall, and a thread is provided on the annular outer wall, and an annular A threaded portion is correspondingly provided on the outer side wall of the rotating body 41, so that the annular rotating body 41 is threadedly connected with the annular opening cavity 216, and an annular mounting groove is provided on the annular inner wall of the annular opening cavity 216, and an annular spring member 43 is provided in the annular mounting groove, and an arc-shaped through opening 421 is provided on each limiting block 42, and the annular spring member 43 sequentially passes through the arc-shaped through opening 421 of each limiting block 42, and the thickness of the annular rotating body 41 gradually increases from the bottom to the top of the annular rotating body 41, so that an inclined pressing surface 41 is formed on the inner wall of the annular rotating body 41 1. The annular spring member 43 is arranged as follows: when the annular spring member 43 is in the initial state, each limiting block 42 is stored in the radial opening 215, and the limiting block 42 is not in contact with the tube body 1 located in the through hole 214. At this time, the limiting assembly 4 and the tube body 1 are in a separated state. At this time, the position of the fixing member 21 can be adjusted. When the annular rotating body 41 is rotated downward, the pressing surface 411 on the inner wall of the annular rotating body 41 drives the limiting block 42, so that the limiting block 42 moves along the radial opening 215 toward the center direction of the through hole 214 and gradually moves from the radial opening 215. The limiting assembly 4 and the tube body 1 are now in a fixed and restricted state, so that the fixing member 21 is fixed on the tube body 1. During this process, the limiting block 42 moves along the radial opening 215 to press the annular spring member 43, causing the annular spring member 43 to deform and become elastic. When the annular rotating body 41 rotates upward, the pressure of the pressing surface 411 on the inner wall of the annular rotating body 41 on the limiting block 42 disappears. Under the elastic action of the annular spring member 43, the limiting block 42 can be restored to its initial state.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A single-lumen endobronchial catheter, comprising a tube body, wherein a balloon is provided at the lower end of the tube body, characterized in that: It also includes a fixing assembly, the fixing assembly includes a fixing part and movable parts arranged on both sides of the fixing part, the fixing part is provided with a through hole for the tube body to pass through, the inner wall of the through hole is provided with a limiting assembly, the limiting assembly has a limiting state for fixing and limiting the tube body and a separation state for being separated from the tube body; Open cavities are provided on both sides of the fixed part, and the movable part is slidably restricted in the open cavities respectively. The outer wall of the movable part is an arc-shaped side edge, and a flexible structure is wrapped on the arc-shaped side edge. A locking assembly is provided in the fixed part, and a sliding part is provided on the movable part. A locking part corresponding to the locking assembly is provided on the sliding part, and the locking assembly and the locking part have a locked state and an unlocked state.

2. The single-lumen endobronchial catheter according to claim 1, characterized in that: An installation cavity is arranged inside the fixing member, a connecting passage is arranged between the installation cavity and the opening cavity, and the locking assembly is arranged in the installation cavity.

3. The single lumen endobronchial catheter according to claim 2, characterized in that: A sliding bar is fixedly arranged on the movable part, the locking part comprises a tooth groove arranged on the sliding bar, a movement groove is arranged in the installation cavity, and the sliding bar is slidably connected in the movement groove.

4. The single-lumen endobronchial catheter according to claim 3, characterized in that: The locking assembly includes an adjusting member and a locking block, the locking block is provided with a locking serration, the mounting cavity is provided with a sliding groove, the sliding groove is vertically arranged with the moving groove, the locking block is slidably connected in the sliding groove, and the locking serration can be driven by the adjusting member to move between a first working position and a second working position.

5. The single lumen endobronchial catheter according to claim 4, characterized in that: The adjusting member comprises a circular rotating plate, two arc-shaped protrusions are arranged on the circular rotating plate, the locking blocks are arranged on opposite sides of the circular rotating plate, an arc-shaped surface is arranged on the side of the locking block corresponding to the circular rotating plate, and the sliding bar is arranged on the side of each locking block away from the circular rotating plate.

6. The single lumen endobronchial catheter according to claim 5, characterized in that: It also includes a connecting spring. The locking block is provided with a side plate, and the connecting spring is provided between the side plates of the two locking blocks.

7. The single lumen endobronchial catheter according to claim 6, characterized in that: A cylinder is coaxially arranged on the circular rotating plate, a mounting hole communicating with the mounting cavity is arranged on the fixing member, the cylinder is rotatably mounted in the mounting hole, and a hexagonal connecting groove corresponding to the operating tool is arranged on the cylinder.

8. The single lumen endobronchial catheter according to claim 1, characterized in that: The limiting assembly includes an annular rotating body and a plurality of limiting blocks. A plurality of radial openings are arranged on the side wall of the through hole. The plurality of radial openings are arranged in sequence and spaced apart along the circumference of the through hole. The limiting block is slidably arranged in each of the radial openings.

9. The single lumen endobronchial catheter according to claim 8, characterized in that: The fixing member is provided with an annular opening cavity, and the annular opening cavity is arranged around the through hole. The annular rotating body is rotatably connected in the annular opening cavity. The annular rotating body rotates along the annular opening cavity to correspondingly drive the limiting block to move along the radial opening.

Images