CN218739799U - Trachea cannula with pressure sensor - Google Patents

Abstract

The utility model provides a trachea cannula with pressure sensor, it has solved gasbag pressure control scheduling problem, it includes the air flue pipe, the air flue pipe one end outside is fixed with the gasbag and the other end is connected with the pipe connection, the gasbag passes through gas tube and pressure indication bag intercommunication, the pressure indication bag is through luer connector assembly and sensing element intercommunication, luer connector assembly is last to install the switch module of the inside break-make of control luer connector assembly, sensing element passes through the switching subassembly and is connected with the monitor. The utility model has the advantages of high pressure adjusting precision, convenient use and the like.

Description

Trachea cannula with pressure sensor

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to trachea cannula with pressure sensor.

Background

In medical work, the trachea cannula through the oral cavity or the nasal cavity is a common, rapid and effective artificial airway establishment measure, but the pressure in the air bag needs to be detected in real time in the operation, the 25-30cm H2O water column pressure is ensured to be kept in the air bag, the pressure in the air bag is too low, the air bag is not completely attached to the trachea wall, a gap is formed, gas leakage is caused, and the normal breathing of a patient when the patient uses a breathing machine or the anesthesia effect when the patient uses an anesthesia breathing machine is influenced. The pressure in the air bag is too high, and the mucous membrane of the airway of the human body is damaged, so that serious sequelae are caused. Therefore, it is necessary for medical staff to constantly detect the internal pressure of the balloon with a pressure gauge and to ensure that the pressure in the balloon is maintained within the range of 25 to 30cm H2. But often the pressure inside the airbag exceeds the specified requirements due to the carelessness of the personnel. Meanwhile, the existing air bag pressure judgment adopts a touch mode, no definite numerical value exists, and misjudgment is easily caused when medical staff operate. In addition, after the existing trachea cannula is inserted into the airway of a human body, the pressure inside the air bag is inconvenient to adjust, and the timely air pressure correction cannot be carried out.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent literature discloses a tracheal intubation with a pressure sensor [201920785328.7] which comprises a tube body, wherein one end of the tube body is fixedly connected with a joint, the other end of the tube body is fixedly provided with a pressure sensor probe, the other end of the tube body is sleeved with a balloon, one side of the tube body is fixedly connected with an inflation tube, one end of the inflation tube is fixedly connected with an indication air bag, one end of the indication air bag is fixedly connected with a one-way valve, the other side of the tube body is fixedly connected with a lead, and one end of the lead is fixedly connected with a monitor connector.

The above solution solves the problem of air bag pressure sensing to a certain extent, but the solution still has many disadvantages, such as the problem of air pressure correction in the air bag.

Disclosure of Invention

The utility model aims at the above problem, provide a reasonable in design, the convenient trachea cannula with pressure sensor who revises to the inside atmospheric pressure of gasbag.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model provides an endotracheal tube with pressure sensor, includes the air flue pipe, and the air flue pipe one end outside is fixed with the gasbag and the other end is connected with the intubate and connects, and the gasbag passes through gas tube and pressure indication bag intercommunication, and the pressure indication bag passes through luer connector subassembly and sensing element intercommunication, luer connector unit is last to be installed the switch module of the inside break-make of control luer connector unit, and sensing element passes through the switching subassembly and is connected with the monitor. Airway pipe inserts patient's air flue, and the gasbag of end department is aerifyd in advance and is guaranteed can not the slippage after inserting, later through the gas tube gas injection, fills the gassing and realizes the route switching by luer connector assembly, and sensing assembly response atmospheric pressure size realizes feedback control, revises the inside atmospheric pressure of gasbag, avoids the too high anesthetic gas that leads to excessively leading to crossing the extrusion of tracheal excessive and pressure to lead to excessively to leak.

In one of the above-described endotracheal tubes having a pressure sensor, the luer fitting assembly includes a male luer cone in communication with the pressure indicating cuff, the male luer cone being in communication with a female luer cone, the female luer cone being connected to a syringe. The luer connector assembly is inserted by a syringe, and the air pressure of the air bag is adjusted by inflating and deflating the air bag through the inflation tube.

In the tracheal cannula with the pressure sensor, the switch assembly comprises a valve core arranged between a male luer conical joint and a female luer conical joint, the male luer conical joint and the female luer conical joint are switched on and off along with the rotation of the valve core, and the valve core is connected with a rotary handle switch extending outwards. The switch component controls the on-off of the inner channel of the Ruhr joint component through the rotating handle switch.

In the endotracheal intubation with the pressure sensor, a connector communicated with the sensing assembly is arranged between the male luer conical connector and the female luer conical connector. The male luer conical joint, the female luer conical joint and the interfaces between the male luer conical joint and the female luer conical joint form a tee joint, a rotary handle switch and a valve core in the rotary handle switch control a passage, the luer joint component is integrally in a T-shaped or Y-shaped structure, and the valve core is provided with opposite passages.

In the tracheal cannula with the pressure sensor, the pressure indicating bag is internally provided with the one-way valve, the one-way valve is opened along with the insertion of the male luer conical joint, and the one-way valve is closed along with the withdrawal of the male luer conical joint. The check valve seals the pressure indicating bag in a normal state, and air leakage of the air bag is avoided.

In the tracheal cannula with the pressure sensor, the one-way valve is in a spring type or plastic diaphragm type, the spring or the diaphragm is pressed after the male luer conical joint is inserted, and the spring or the diaphragm is reset after the male luer conical joint is withdrawn. And a one-way valve with a proper structure is selected according to the requirement, and when the end of the male luer conical joint is pressed, the spring or the diaphragm is pushed open for gas flow.

In the tracheal intubation with the pressure sensor, the sensing assembly comprises the pressure sensor, the pressure sensor adopts a GENPC-100 chip, and the pressure sensor is coated by an injection molding piece. The GENPC-100 chip arranged in the sensing assembly is a disposable medical pressure sensor.

In the trachea cannula with the pressure sensor, the switching assembly comprises a switching line connected with the pressure sensor, and the switching line is connected with a plug connector. The adapter component realizes the connection between the pressure sensor and the monitor, and medical staff can judge whether the air pressure in the air bag is in the range specified by 25-30cm H2O by observing the monitor, and correct the pressure in the air bag if the air pressure exceeds the range of the pressure value.

In the tracheal cannula with the pressure sensor, the indication marks arranged along the extending direction are arranged on the outer side of the airway tube. The indicator is used for displaying the length of the airway conduit, and the insertion depth and the position of the air bag can be conveniently judged during intubation.

In the tracheal cannula with the pressure sensor, the inflation tube penetrates through the side wall of the airway tube, and the inflation tube is communicated with the inner side of the air bag. The inflation tube is attached to the inner wall of the airway tube, and after the airway tube is inserted, the patient is prevented from being damaged by friction between the inflation tube and the inner wall of the trachea.

Compared with the prior art, the utility model has the advantages of: the air pressure of the air bag is detected in time and is switched and inflated through the luer connector assembly, the air pressure of the air bag is corrected, and the internal pressure value of the air bag is ensured to be within a reasonable range; a one-way valve is arranged in the pressure indicating bag to seal the inflation tube, so that the internal sealing performance of the air bag is ensured; the external monitor of sensing subassembly accessible switching subassembly makes things convenient for medical personnel to observe the inside atmospheric pressure state of gasbag.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of a luer fitting assembly of the present invention;

fig. 3 is a cross-sectional view of a luer fitting assembly of the present invention;

FIG. 4 is a cross-sectional view of the pressure indicating bladder of the present invention;

in the figure, an airway tube 1, an indicator 11, an air bag 2, an intubation tube connector 3, an inflation tube 4, a pressure indicating bag 5, a luer connector assembly 6, a male luer conical connector 61, a female luer conical connector 62, a sensing assembly 7, a switch assembly 8, a switch sheet 81, a rotary handle switch 82, a switching assembly 9, a patch cord 91 and a plug connector 92.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an endotracheal tube with a pressure sensor comprises an airway tube 1, an air bag 2 is fixed on the outer side of one end of the airway tube 1, the other end of the airway tube 1 is connected with an intubation joint 3, the air bag 2 is communicated with a pressure indicating bag 5 through an inflation tube 4, the pressure indicating bag 5 is communicated with a sensing assembly 7 through a luer joint assembly 6, a switch assembly 8 for controlling the on-off of the interior of the luer joint assembly 6 is installed on the luer joint assembly 6, and the sensing assembly 7 is connected with a monitor through a switching assembly 9. The air bag 2 is fixed at the end of the airway tube 1, the intubation joint 3 is connected with a breathing machine to supply air for the airway tube 1, the air bag 2 is connected with the inflation tube 4, the inflation tube 4 injects air through the Ruhr joint component 6 or is connected with the sensing component 7 to transmit air pressure, and the switching component 9 transmits the data of the sensing component 7 into the monitor.

As shown in fig. 2, the luer fitting assembly 6 includes a male luer taper 61 in communication with the pressure indicating bladder 5, the male luer taper 61 in communication with a female luer taper 62, the female luer taper being connected to a syringe. The male luer conical joint 61 in the luer joint assembly 6 is communicated with the pressure indicating bag 5 and the inflation tube 4, the female luer conical joint 62 faces outwards, and the internal pressure is adjusted by inflating and deflating the air bag 2 after the syringe is inserted. The adopted male luer conical joint 61 is inserted and locked with the pressure indicating bag 5, and the female luer conical joint 62 is matched with the syringe. Luer fitting assembly 6 is typically made of a plastic material for single use. The male luer taper 61 and the female luer taper 62 are 6% taper.

As shown in fig. 3, the switch assembly 8 includes a valve core 81 disposed between the male luer conical joint 61 and the female luer conical joint 62, the male luer conical joint 61 and the female luer conical joint 62 are opened and closed with the rotation of the valve core 81, the valve core 81 is connected to a handle switch 82 extending outward, and an interface communicating with the sensing assembly 7 is disposed between the male luer conical joint 61 and the female luer conical joint 62.

Further, the valve core 81 is rotatably installed in the luer connector assembly 6, the male luer conical connector 61 and the female luer conical connector 62 in the luer connector assembly 6 and the interface form a T-shaped structure, the valve core 81 is rotatably installed at the junction of the internal channels thereof, meanwhile, a T-shaped channel is also formed in the valve core 81, and the rotating handle switch 82 switches the orientation of the internal channels of the valve core 81 to realize the mutual communication between the male luer conical connector 61 and the female luer conical connector 62 and the interface, or the communication between the male luer conical connector 61 and the female luer conical connector 62. The air inflation and deflation of the air bag 2 are realized, or the air pressure in the air bag 2 is fed back and adjusted by matching with the sensing component 7, or the complete truncation of the male luer conical joint 61 is realized.

As shown in fig. 4, the pressure indication bag 5 is provided with a one-way valve inside, the one-way valve is opened with the insertion of the male luer taper 61, and the one-way valve is closed with the withdrawal of the male luer taper 61. The one-way valve in the pressure indication bag 5 realizes the one-way inflation of the air bag 2, and the air bag 2 is directly inflated by a syringe or other inflation equipment. When the male luer conical joint 61 is inserted, the two-way valve bi-pass is realized, and the inner luer conical joint 62 is used for deflating the air bag 2. After the air bag 2 is inflated, the knob switch 82 is firstly rotated to completely cut off the male luer conical joint 61, then the male luer conical joint 61 is pulled out from the pressure indicating bag 5, the automatic sealing of the one-way valve is realized, and the air in the air bag 2 cannot leak in the whole operation process.

In addition, the one-way valve is of a spring type or a plastic diaphragm type, the male luer conical joint 61 is inserted and then presses against the spring or the diaphragm, and the spring or the diaphragm resets after the male luer conical joint 61 is withdrawn. If the one-way valve adopts a spring type structure, the male luer conical joint 61 abuts against a steel ball after being inserted, and the male luer conical joint 61 is pushed to communicate two ends of the one-way valve; if a plastic diaphragm type structure is adopted, the male luer conical joint 61 is directly inserted between the diaphragms, a channel between the diaphragms is opened, and gas can flow in two directions in the one-way valve.

Meanwhile, the sensing assembly 7 comprises a pressure sensor, the pressure sensor adopts a GENPC-100 chip, and the pressure sensor is coated by an injection molding piece. The pressure sensor is completely sealed by an injection molding piece, and the adopted GENPC-100 chip is usually disposable, so that the manufacturing cost of the sensing assembly 7 is reduced.

The adapter module 9 is visible to include an adapter wire 91 connected to the pressure sensor, the adapter wire 91 being connected to a plug 92. The switching component 9 is connected with the monitor through the plug-in connector 92, transmits the collected analog signal to the monitor and converts the analog signal into a digital signal, and medical staff manually adjusts the injector to inflate and deflate the air bag 2 according to the air pressure of the air bag 2 in the monitor, and controls the pressure value to be within the range specified by 25-30cm H2. If the pressure value exceeds the range of the pressure value, the pressure in the air bag is corrected, so that the phenomenon that the air bag excessively extrudes a human trachea to damage a patient due to too low pressure in the air bag of the tracheal cannula to cause the leakage of anesthetic gas or too high pressure in the air bag is avoided.

Obviously, the airway tube 1 is provided with indicators 11 arranged along the extending direction on the outer side. The indication mark 11 is generally an indication scale, which identifies the length of the airway tube 1, and the medical staff adjusts the insertion depth of the airway tube 1 through the surface scale.

Preferably, the inflation tube 4 passes through the side wall of the airway tube 1, and the inflation tube 4 is communicated with the inner side of the air bag 2. The joint of the air charging tube 4 and the air flue duct 1 is sealed by hot pressing to improve air tightness, the air flue duct 1 and the air charging tube 4 are not interfered with each other, the air charging tube 4 is hidden in the air flue duct 1 to ensure that the outer surface of the air flue duct 1 is smooth, and irritation to the air flue is reduced.

In summary, the principle of the present embodiment is: the air bag 2 is inflated and deflated by using the luer connector assembly 6, meanwhile, the luer connector assembly 6 is connected with the sensing assembly 7, the pressure inside the air bag 2 can be conveniently fed back and adjusted by an operator, the luer connector assembly 6 is adjusted to be an internal passage through the switch assembly 8, and the luer connector assembly 6 is sealed or is inflated in a switching mode.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms airway tube 1, indicator mark 11, balloon 2, cannula adapter 3, inflation tube 4, pressure indicating balloon 5, luer adapter assembly 6, male luer taper 61, female luer taper 62, sensing assembly 7, switch assembly 8, switch plate 81, toggle switch 82, switch assembly 9, patch cord 91, plug 92, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides an endotracheal tube with pressure sensor, includes airway tube (1), its characterized in that, airway tube (1) one end outside be fixed with gasbag (2) and the other end is connected with intubate joint (3), gasbag (2) communicate through gas tube (4) and pressure indication bag (5), pressure indication bag (5) communicate with sensing component (7) through luer joint subassembly (6), luer joint subassembly (6) on install switch module (8) of the inside break-make of control luer joint subassembly (6), sensing component (7) be connected with the monitor through adapter module (9).

2. An endotracheal tube with pressure sensor according to claim 1, characterized in that said luer assembly (6) comprises a male luer cone (61) communicating with the pressure indicating capsule (5), said male luer cone (61) communicating with a female luer cone (62) connected to a syringe.

3. An endotracheal tube having a pressure sensor according to claim 2 characterized in that said switch assembly (8) comprises a valve core (81) disposed between a male luer taper (61) and a female luer taper (62), said male luer taper (61) and female luer taper (62) being switched on and off in response to rotation of said valve core (81), said valve core (81) being connected to an outwardly extending rotary handle switch (82).

4. An endotracheal intubation with a pressure sensor according to claim 2 or 3, characterized in that a connection to the sensing assembly (7) is provided between said male (61) and female (62) luer cones.

5. An endotracheal tube with pressure sensor according to claim 4, characterized in that the pressure indicating capsule (5) is internally provided with a one-way valve which opens upon insertion of the male luer cone (61) and closes upon withdrawal of the male luer cone (61).

6. The endotracheal tube with pressure sensor as claimed in claim 5, characterized in that, said one-way valve is of spring type or plastic diaphragm type, said male luer taper (61) is inserted and then presses against the spring or the diaphragm, and said male luer taper (61) is withdrawn and then the spring or the diaphragm is reset.

7. The endotracheal tube with pressure sensor according to claim 1, characterized in that said sensing assembly (7) comprises a pressure sensor, said pressure sensor being implemented as a GENPC-100 chip, said pressure sensor being coated by an injection molded part.

8. An endotracheal tube having a pressure sensor according to claim 6, characterized in that said adapter assembly (9) comprises a patch cord (91) connected to the pressure sensor, said patch cord (91) being connected to a plug connector (92).

9. An endotracheal tube with pressure sensor according to claim 1, characterized in that the airway tube (1) is provided with indicators (11) arranged along the extension direction.

10. An endotracheal tube with pressure sensor according to claim 1, characterized in that said inflation tube (4) passes through the side wall of the airway tube (1), said inflation tube (4) communicating with the inside of the cuff (2).

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