Double-cavity visual cannula with flow control function

Abstract

The utility model discloses a double-cavity visual cannula with a flow control function, and belongs to the technical field of medical instruments. Comprising a main pipe, a main air pipe pipeline located on one side in the main pipe, branch air pipe pipelines attached to the main air pipe pipeline and located in the main pipe, a four-way connector installed at the top of the main pipe, an air pipe connector installed at the top end of the four-way connector and cameras located at the inner bottom ends of the main air pipe pipeline and the branch air pipe pipelines. A flow adjusting mechanism composed of the center body, the lower arc-shaped plate, the upper arc-shaped plate, the penetrating holes, the vertical rods, the transverse plates, the inserting grooves and the inserting heads is arranged between the two gas pipe connectors, the gas flow can be adjusted in the using process, and meanwhile the two sides of the inverted-triangle-shaped center body are attached to the two gas pipe connectors respectively. The two sets of air pipe joints are unfolded towards the two sides correspondingly, operation and use are convenient, in addition, the flow adjusting mechanism is machined in an integrated injection molding mode, and the production and use cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double-cavity visual cannula, particularly to a double-cavity visual cannula with flow control function, and belongs to the technical field of medical instruments. BACKGROUND

[0002] In the prior art, the utility model discloses a visual double-cavity bronchial cannula assembly in the application number 202221960252.5, in order to solve the problem that the branch pipe of the double-cavity bronchial cannula needs to be inserted into the bronchus, and the position of the camera cannot be clearly captured, so after the double-cavity bronchial cannula is inserted, adjustment is still needed, and the placement of the double-cavity bronchial cannula cannot be directly completed. A first camera is arranged on the main pipe, and a second camera is arranged in the bronchial pipe of the branch pipe. Through the shooting of the two cameras, the operating doctor can more conveniently insert the branch pipe into the bronchus and directly insert it to the appropriate depth. The whole process is simple to operate, and no additional adjustment is needed.

[0003] However, the above-mentioned application still has some deficiencies:

[0004] During use, gas flow cannot be adjusted according to the patient's symptoms. For patients with hypoxemia, if the gas flow is too low, it will lead to insufficient ventilation and cannot effectively deliver oxygen to the lungs, thereby causing hypoxemia. For patients with hypercapnia, if the gas flow is too high, it may cause excessive ventilation, causing too much carbon dioxide to be discharged, causing respiratory alkalosis. In addition, too high gas flow will increase airway pressure and increase lung tissue pressure, easily leading to barotrauma such as pneumothorax and mediastinal emphysema.

[0005] Therefore, a double-cavity visual cannula with flow control function is designed to optimize the above problems. Utility model content

[0006] The utility model discloses a main purpose is to provide a kind of double-cavity visualization cannula with flow control function, by being provided with center body, lower arc plate, upper arc plate, perforation, vertical rod, horizontal plate, slot, plug between two gas pipe joints, flow regulating mechanism of slot, plug composition, can be adjusted to gas flow in the process of use, simultaneously, the two sides of the center body of inverted triangle respectively with two groups of gas pipe joint between sticking, so that two groups of gas pipe joint are respectively expanded to two sides, convenient operation uses, in addition, flow regulating mechanism is processed using integrally injection moulded mode, production use cost is low, by being provided with sheath, annular sheet, reset spring and steel wire composition's elastic reset mechanism in the top of main pipe, the top of steel wire is slidably arranged in the inside of main pipe, only the bottom end of steel wire is fixedly connected with main pipe, so that when main pipe is extruded deformation, the elastic force of reset spring can be quickly reset, and the anti-deformation effect of main pipe is improved, and practicality is higher.

[0007] The utility model discloses a main purpose can be achieved by adopting following technical scheme:

[0008] A kind of double-cavity visualization cannula with flow control function, including main pipe, main gas pipe line in the inside one side of main pipe, branch gas pipe line being stuck with main gas pipe line and being located in the inside of main pipe, four-way joint being installed in the top of main pipe, gas pipe joint being installed in the top of four-way joint and camera being located in the bottom end in main gas pipe line, branch gas pipe line, two groups of gas pipe joint bottom end pipe between being provided with flow regulating mechanism, the top of main pipe is installed with the elastic reset mechanism that the indentation of main pipe outside is reset.

[0009] Preferably: flow regulating mechanism includes center body, lower arc plate, upper arc plate, perforation, vertical rod, horizontal plate, slot and plug, the bottom end of center body is symmetrically installed with lower arc plate, the top of lower arc plate is equipped with plug, the top of center body is symmetrically installed with upper arc plate, the perforation of being cooperated with the bottom pipe of gas pipe joint is all set up on lower arc plate and upper arc plate, the end of upper arc plate away from center body is vertically fixed with vertical rod, the bottom end of vertical rod is vertically fixed with horizontal plate, the bottom end of horizontal plate is evenly provided with the slot of being cooperated with plug along length direction.

[0010] Preferably: the slot of horizontal plate bottom end is all set up with five groups, the section image of slot is right trapezoidal, the slope of plug outside is stuck with the slope of slot.

[0011] Preferably: the shape of center body is inverted triangle, center body, lower arc plate, upper arc plate, vertical rod, horizontal plate and plug adopt integrally injection moulded.

[0012] Preferably: the two ends of horizontal plate are located at the two sides of vertical rod respectively, the outside of horizontal plate is equipped with anti-skid line.

[0013] Preferably, the elastic reset mechanism comprises a sheath, an annular sheet, a reset spring and a steel wire, the sheath is fixed to the top end of the outer side of the main pipe, the annular sheet is sleeved on the main pipe and located inside the sheath, the reset spring is arranged between the bottom of the annular sheet and the inner bottom end of the sheath, the bottom end of the annular sheet is uniformly provided with the steel wire, the steel wire is arranged inside the main pipe along the length direction of the main pipe, and the bottom end of the steel wire is fixedly connected with the main pipe.

[0014] Preferably, the main pipe passes through the inside of the reset spring, and the outer side of the steel wire is attached to the inside of the reset spring.

[0015] The utility model discloses have the beneficial effect that:

[0016] The utility model provides a double -cavity visualization cannula with flow control function, through setting up the flow regulation mechanism that center body, lower arc plate, upper arc plate, perforation, vertical rod, transverse board, insertion slot, plug constitute between two gas pipe joints, can adjust gas flow in the process of using, the center body both sides of inverted triangle respectively with two group gas pipe joints between the adhesion makes two group gas pipe joints respectively to the both sides and spread, convenient operation uses, in addition flow regulation mechanism adopts the way of integrative injection moulded and processes, and the production use cost is low,

[0017] Through setting up the elastic reset mechanism that sheath, annular sheet, reset spring and steel wire constitute at the top end of the main pipe, the top of steel wire is slidably arranged in the inside of the main pipe, only the bottom end of steel wire is fixedly connected with the main pipe, so that when the main pipe is extruded and deformed, the elastic force of reset spring can be used to reset quickly, and the anti-deformation effect of the main pipe is improved, and the practicality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the flow regulation mechanism drawing of the utility model;

[0020] Figure 3 It is the Figure 1 It is the enlarged view of A place in the middle;

[0021] Figure 4 It is the front view of the utility model.

[0022] In the drawing: 1, main pipe; 2, main gas pipe line; 3, branch gas pipe line; 4, four-way joint; 5, gas pipe joint; 6, flow regulation mechanism; 7, elastic reset mechanism; 8, center body; 9, lower arc plate; 10, upper arc plate; 11, perforation; 12, vertical rod; 13, transverse board; 14, insertion slot; 15, plug; 16, sheath; 17, annular sheet; 18, reset spring; 19, steel wire. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-4 As shown, this embodiment provides a dual-lumen visual cannula with flow control function, including a main tube 1, a main tracheal tube 2 located inside the main tube 1, a bronchial tube 3 attached to the main tracheal tube 2 and located inside the main tube 1, a four-way connector 4 installed on the top of the main tube 1, a tracheal connector 5 installed on the top of the four-way connector 4, and a camera located at the bottom of the main tracheal tube 2 and the bronchial tube 3. A flow adjustment mechanism 6 is provided between the pipes at the bottom of the two sets of tracheal connectors 5, and an elastic reset mechanism 7 is installed at the top of the main tube 1 to reset the indentation on the outside of the main tube 1.

[0025] General working principle: Before use, adjust the patient's position, usually supine with the head tilted back, so that the three axes of the mouth, pharynx, and larynx are as straight as possible, which facilitates the insertion of the laryngoscope and the exposure of the trachea. For some special patients, such as obese patients or patients with cervical spine injuries, special positions such as lateral decubitus or semi-recumbent position can be selected. Then, according to the patient's condition and surgical requirements, select the appropriate anesthesia induction method and drugs. After successful anesthesia induction, use the laryngoscope to expose the patient's larynx. After seeing the glottis, align the tip of the double-lumen endotracheal tube with the glottis and gently insert the tube during the inspiration phase. After confirming that the tube is in the correct position, inject an appropriate amount of air into the cuff of the tube to inflate the cuff and close the airway. During use, the lung function, severity of the disease, and surgical needs of different patients vary. Use the flow adjustment mechanism 6 to adjust the gas flow. In addition, if there are indentations on the surface of the main tube 1 when the device is taken out of the packaging bag or during insertion, the elastic reset mechanism 7 can be used to expand and reset the main tube 1.

[0026] In this embodiment, the flow regulating mechanism 6 includes a central body 8, a lower arc plate 9, an upper arc plate 10, a through hole 11, a vertical rod 12, a horizontal plate 13, a slot 14, and a plug 15. The lower arc plate 9 is symmetrically installed at the bottom of the central body 8, and the top of the lower arc plate 9 is provided with a plug 15. The upper arc plate 10 is symmetrically installed at the top of the central body 8. The lower arc plate 9 and the upper arc plate 10 are both provided with through holes 11 that cooperate with the bottom pipe of the air pipe connector 5. The upper arc plate 10 is vertically fixed to a vertical rod 12 at the end away from the central body 8. The bottom end of the vertical rod 12 is vertically fixed to a horizontal plate 13. The bottom end of the horizontal plate 13 is evenly provided with slots 14 that cooperate with the plug 15 along the length direction.

[0027] Local working principle: when the flow of the main air pipe 2 or the branch air pipe 3 needs to be adjusted, the vertical rod 12 on one side of the main air pipe 2 or the branch air pipe 3 is pressed, the horizontal plate 13 at the control end of the vertical rod is extruded towards the bottom pipe of the air pipe joint 5, and in the process of movement of the horizontal plate 13, the plug 15 at the top end of the lower arc-shaped plate 9 is inserted into the inside of the slot 14 to automatically position the position of the horizontal plate 13, so as to ensure the position positioning of the horizontal plate 13.

[0028] In the embodiment, the five groups of slots 14 at the bottom end of the horizontal plate 13 are all provided, and the section view of the slot 14 is a right-angled trapezoid, and the slope outside the plug 15 is matched with the slope of the slot 14.

[0029] Local working principle: through the provision of the plurality of slots 14, different degrees of flow control can be achieved in the use process, and the plug 15 is matched with the slot 14, the section view of the slot 14 is a right-angled trapezoid, when the horizontal plate 13 extrudes the bottom pipe of the air pipe joint 5, the slope of the plug 15 is matched with the slope of the horizontal plate 13, and the horizontal plate 13 can move after overcoming the resistance, and after the plug 15 is inserted into the inside of the slot 14, the slot 14 is matched with the horizontal plane of the plug 15, and the reverse movement does not occur, so as to ensure the stability of the plug.

[0030] In the embodiment, the shape of the center body 8 is a reverse triangle, and the center body 8, the lower arc-shaped plate 9, the upper arc-shaped plate 10, the vertical rod 12, the horizontal plate 13 and the plug 15 are integrally injection molded.

[0031] Local working principle: the center body 8 can expand the two air pipe joints 5 outward, so as to facilitate the connection and use of the device.

[0032] In the embodiment, the two ends of the horizontal plate 13 are located on the two sides of the vertical rod 12, and the outside of the horizontal plate 13 is provided with anti-skid lines.

[0033] Local working principle: the provision of the anti-skid lines facilitates the extrusion of the outside of the horizontal plate 13 by the fingers, and the operation is convenient.

[0034] In the embodiment, the elastic reset mechanism 7 includes a sheath 16, an annular sheet 17, a reset spring 18 and a steel wire 19, the sheath 16 is fixed at the top end of the outer side of the main pipe 1, the annular sheet 17 is sleeved on the main pipe 1, and the annular sheet 17 is located in the inside of the sheath 16, the reset spring 18 is arranged between the bottom of the annular sheet 17 and the inner bottom end of the sheath 16, the steel wire 19 is uniformly arranged at the bottom end of the annular sheet 17, and the steel wire 19 is arranged in the inside of the main pipe 1 along the length direction of the main pipe 1, the bottom end of the steel wire 19 is fixedly connected with the main pipe 1, and the top of the steel wire 19 is slidably connected with the main pipe 1.

[0035] Local working principle: since the steel wire 19 is arranged along the length direction of the main pipe 1, the steel wire 19 will be pulled in the case that the outer side of the main pipe 1 is extruded, the reset spring 18 will be extruded through the steel wire 19, the arrangement of the reset spring 18 can improve the anti-deformation effect of the main pipe 1, and after deformation, the reset spring 18 can accelerate the reset of the main pipe 1.

[0036] In the embodiment, the main pipe 1 passes through the inside of the reset spring 18, and the outer side of the steel wire 19 is attached to the inner side of the reset spring 18.

[0037] Local working principle: the main pipe 1 can limit the reset spring 18, the outer side of the main pipe 1 leaves a gap with the reset spring 18, and the steel wire 19 is located in the gap.

[0038] The above is only further embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. A dual-lumen visual cannula with flow control function, comprising a main tube (1), a main tracheal tube (2) located inside the main tube (1) on one side, a bronchial tube (3) attached to the main tracheal tube (2) and located inside the main tube (1), a four-way connector (4) installed on the top of the main tube (1), a tracheal connector (5) installed on the top of the four-way connector (4), and a camera located at the bottom of the main tracheal tube (2) and the bronchial tube (3), characterized in that: The flow adjusting mechanism (6) is arranged between the pipes at the bottom end of the tracheal connector (5), and the top end of the main pipe (1) is provided with an elastic reset mechanism (7) for resetting the indentation on the outer side of the main pipe (1).

2. A dual lumen visualizing cannula with flow control according to claim 1, characterized in that: The flow adjusting mechanism (6) comprises a center body (8), lower arc-shaped plates (9), upper arc-shaped plates (10), perforations (11), vertical rods (12), horizontal plates (13), insertion grooves (14) and insertion plugs (15). The bottom end of the center body (8) is symmetrically provided with the lower arc-shaped plates (9), the top of each of the lower arc-shaped plates (9) is provided with the insertion plug (15), the top end of the center body (8) is symmetrically provided with the upper arc-shaped plates (10), the lower arc-shaped plates (9) and the upper arc-shaped plates (10) are both provided with the perforations (11) matched with the pipes at the bottom of the tracheal connector (5), the end of the upper arc-shaped plate (10) away from the center body (8) is vertically fixed with the vertical rod (12), the bottom end of the vertical rod (12) is perpendicularly fixed with the horizontal plate (13), and the bottom end of the horizontal plate (13) is uniformly provided with the insertion grooves (14) matched with the insertion plugs (15) along the length direction.

3. A dual lumen visualizing cannula with flow control according to claim 2, wherein: Five sets of the insertion grooves (14) are arranged at the bottom end of the horizontal plate (13), the cross-sectional image of the insertion groove (14) is a right trapezoid, and the inclined surface on the outer side of the insertion plug (15) is matched with the inclined surface of the insertion groove (14).

4. A dual lumen visualizing cannula with flow control according to claim 3, wherein: The center body (8) is in the shape of an inverted triangle, and the center body (8), the lower arc-shaped plates (9), the upper arc-shaped plates (10), the vertical rod (12), the horizontal plate (13) and the insertion plug (15) are integrally injection molded.

5. A dual lumen visualizing cannula with flow control according to claim 4, wherein: The two ends of the horizontal plate (13) are located at the two sides of the vertical rod (12), and the outer side of the horizontal plate (13) is provided with anti-skid lines.

6. A dual lumen visualizing cannula with flow control according to any one of claims 1-5, wherein: The elastic reset mechanism (7) comprises a sheath (16), an annular sheet (17), a reset spring (18) and steel wires (19). The sheath (16) is fixed at the top end of the outer side of the main pipe (1), the annular sheet (17) is sleeved on the main pipe (1), and the annular sheet (17) is located inside the sheath (16). The reset spring (18) is arranged between the bottom of the annular sheet (17) and the inner bottom end of the sheath (16), the steel wires (19) are uniformly arranged at the bottom end of the annular sheet (17) and are arranged inside the main pipe (1) along the length direction of the main pipe (1), the bottom end of the steel wire (19) is fixedly connected with the main pipe (1), and the top of the steel wire (19) is slidably connected with the main pipe (1).

7. A dual lumen visualization cannula with flow control according to claim 6, wherein: The main pipe (1) passes through the inside of the reset spring (18), and the outer side of the steel wire (19) is matched with the inner side of the reset spring (18).

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