Respiration extension tube for neonates

Abstract

The utility model provides a newborn breathing extension tube which comprises a tube body, the tube body serves as a breathing extension pipeline during clinical resuscitation or transfer of a newborn, one end of the tube body is used for being connected with a tracheal catheter or a breathing mask located in an incubator, and the other end of the tube body extends out of the incubator and is used for being connected with a resuscitation bag. A duckbilled valve and an air escape valve are arranged on the tube body, the duckbilled valve comprises a two-clack type valve plate and an air outlet hole, the two-clack type valve plate is used for controlling one-way flowing of air flow, the air outlet hole is used for exhaling of a newborn, and the duckbilled valve is close to one end, connected with a tracheal catheter or a breathing mask, of the tube body. And the air escape valve is close to one end, connected with the resuscitation bag, of the tube body and is used for preventing excessive suction pressure. The duckbill valve is arranged close to one end, connected with a tracheal catheter or a breathing mask, of the tube body, so that a breathing channel of a newborn is short, a mechanical ineffective cavity can be avoided, and lung injury of the newborn caused by overlarge air pressure can be avoided by arranging the air escape valve.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing extension tubes, in particular to a breathing extension tube for newborns. Background Art

[0002] Neonatal asphyxia is one of the main causes of neonatal death, cerebral palsy, and intellectual disability. The key to successful neonatal resuscitation is to establish effective ventilation. For newborns, if resuscitation is required, effective positive pressure ventilation should be implemented within the golden minute. Neonatal resuscitation bags are often the first choice as ventilation tools in clinical practice. Neonatal resuscitation bags are also the first choice for assisted ventilation of newborns after resuscitation and postoperative intubation.

[0003] The neonatal resuscitation bag is an automatically inflated air bag (250ml) equipped with a pressure relief valve, which can basically meet the needs of clinical resuscitation and transportation, for example, the Chinese utility model patent with the authorization announcement number CN207400983U. However, in clinical work, we still found some difficulties and shortcomings:

[0004] (1) Traditional resuscitation operation space is crowded: Newborns are small in size, especially premature babies and low-birth-weight babies. When the anesthesiologist and assistant are located on the side of the newborn's head to perform airway-related operations, such as positive pressure ventilation, endotracheal intubation, and suction, the operation is limited to the area around the newborn's mouth. The operation range and space are small, the space is crowded during the operation, and the operators affect each other, which ultimately affects the quality of ventilation.

[0005] (2) The traditional mode of transporting newborns with tubes is not safe enough: The transport of newborns, especially the transport of critically ill children after surgery, requires both resuscitation balloon-assisted ventilation and the use of a neonatal incubator to ensure the body temperature of the newborn. When transporting newborns with tubes, the resuscitation balloon is directly connected to the endotracheal tube and needs to be placed in the incubator, and the doctor needs to continue to assist ventilation. At this time, the incubator will be in a continuously open state, which may cause hypothermia in the newborn.

[0006] (3) Although the use of traditional respiratory extension tubes can moderately increase the operating space, the use of traditional respiratory extension tubes will extend the respiratory tract of the newborn, significantly increase the dead space of mechanical ventilation in the newborn, and may cause neonatal hypoxia, etc., aggravating the injury. Utility Model Content

[0007] The utility model aims to provide a newborn baby breathing extension tube to solve the defects of the prior art.

[0008] In order to solve the above technical problems, the utility model provides a neonatal breathing extension tube, including a tube body, wherein the tube body is used as a breathing extension conduit during clinical resuscitation or transportation of neonates, one end of the tube body is used to connect to a tracheal tube or a breathing mask located in an incubator, and the other end of the tube body extends out of the incubator for connecting to a resuscitation bag, a duckbill valve and an air escape valve are arranged on the tube body, the duckbill valve includes a two-flap valve sheet and an air outlet, the two-flap valve sheet is used to control the unidirectional flow of airflow, the air outlet is used for exhalation of the neonate, the duckbill valve is close to one end of the tube body connected to the tracheal tube or the breathing mask, the air escape valve is close to one end of the tube body connected to the resuscitation bag, and the air escape valve is used to prevent excessive inhalation pressure.

[0009] The duckbill valve of the utility model is arranged near one end of the tube body connected to the endotracheal tube or the breathing mask, so that the breathing passage of the newborn is shorter, oxygen enters the endotracheal tube or the breathing mask through the two-flap valve sheet, and the exhaled waste gas is discharged through the air outlet, which can effectively avoid the mechanical dead cavity and ensure the breathing and ventilation of the newborn; by setting the air escape valve, the inhalation pressure in the tube body is always not greater than the deflation pressure of the air escape valve, which can avoid lung damage caused by excessive air pressure entering the lungs of the newborn; in addition, the other end of the tube body is connected to the resuscitation bag, and sufficient oxygen / air can be squeezed into the tube body through the resuscitation bag to ensure ventilation.

[0010] Furthermore, the distance between the duckbill valve and one end of the tube body connected to the endotracheal tube or the breathing mask is no more than 5 cm.

[0011] The utility model can ensure that no mechanical dead space is generated by setting the distance between the duckbill valve and one end of the tube body connected to the tracheal tube or the breathing mask to be no more than 5 cm.

[0012] Furthermore, a side hole for connecting a side stream end-of-tidal current is provided on the tube body, and the side hole for connecting a side stream end-of-tidal current can be connected to a carbon dioxide monitoring device for monitoring the respiratory rate and respiratory function of the newborn.

[0013] The utility model is provided with a side-flow type end-of-expiratory connection side hole, through which respiratory airflow can be collected, and the respiratory frequency and respiratory function of the newborn can be monitored in real time.

[0014] Furthermore, the tube body includes a first tube body and a second tube body, the first tube body is located in an incubator, one end of the second tube body is connected to one end of the first tube body, the other end of the second tube body passes through the incubator and is connected to a resuscitation bag, the duckbill valve is arranged on the first tube body, and the air escape valve is arranged on a portion of the second tube body located outside the incubator.

[0015] The air escape valve of the utility model is arranged on the part of the second tube body located outside the incubator, so that medical staff can directly adjust the air escape valve outside the incubator to avoid occupying the space inside the incubator and affecting the temperature inside the incubator.

[0016] Furthermore, the other end of the second tube is connected to the resuscitation bag via a telescopic tube.

[0017] The utility model provides a telescopic tube, so that the extendable length of the tube body is longer, and the use flexibility of the tube body is further improved.

[0018] Furthermore, two elastic fixing rings are arranged on the second tube body, and the two elastic fixing rings are used to be clamped on the box wall of the heat preservation box so that the tube body is fixed on the heat preservation box.

[0019] The utility model provides two detachable elastic fixing rings, which can, on the one hand, fix the tube body on the incubator, stably fix the tube body, and avoid accidental tube detachment caused by excessive swing of the tube; on the other hand, can seal the tube hole on the incubator, reduce heat loss, and avoid neonatal hypothermia.

[0020] The beneficial effects of the utility model are as follows: the utility model provides a neonatal breathing extension tube with adjustable airway pressure, which is used for neonatal resuscitation and transportation. The neonatal breathing extension tube can allow the operator of auxiliary ventilation to properly leave the neonatal head and face, leaving space for head and face operations; by setting the duckbill valve close to one end of the tube body connected to the tracheal tube or the breathing mask, the breathing passage of the neonate is shorter, oxygen enters the tracheal tube or the breathing mask through the two-flap valve sheet, and the waste gas is discharged through the air outlet, which can effectively avoid the mechanical dead space and ensure the breathing and ventilation of the neonate; by setting the escape valve, the inhalation pressure in the tube body is always not greater than the exhaust pressure of the escape valve, which can avoid lung damage caused by excessive air pressure entering the neonatal lung; the other end of the tube body is connected to the resuscitation bag, and sufficient oxygen / air can be squeezed into the tube body through the resuscitation bag to ensure ventilation. In addition, the tube body is fixed on the incubator through a detachable elastic fixing ring, which can not only stably fix the tube body, but also seal the pipe hole on the incubator to maintain the temperature of the incubator and avoid hypothermia of the neonate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the heat preservation box in the embodiment of the utility model.

[0023] Reference numerals: first tube body 1; second tube body 2; telescopic tube 3; duckbill valve 4; air escape valve 5; two-flap valve plate 6; air outlet 7; side hole for connecting the side end of the side flow type exhalation 8; heat preservation box 9; operation hole 10; pipeline hole 11; elastic fixing ring 12. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] like Figure 1 As shown, this embodiment provides a neonatal breathing extension tube, including a tube body, the tube body including a first tube body 1 and a second tube body 2, the first tube body 1 is provided with a side flow type end-of-expiratory connection side hole 8 and a duckbill valve 4 from the left end to the right end, the duckbill valve 4 and the first tube body 1 are an integral structure, the left end of the first tube body 1 is used to connect the tracheal tube or breathing mask located in the incubator 9, the right end of the first tube body 1 is connected to the second tube body 2, and the first tube body 1 and the second tube body 2 can be connected by a threaded sealing connection or a sealed plug-in connection. The duckbill valve 4 includes a two-flap valve disc 6 and an air outlet 7, the two-flap valve disc 6 has the same function as a one-way valve, when the newborn inhales, the two-flap valve disc 6 opens, oxygen enters the newborn through the two-flap valve disc 6, when the newborn exhales, the two-flap valve disc 6 closes, and the respiratory waste gas is discharged from the air outlet 7 of the duckbill valve 4.

[0026] The second tube body 2 is provided with an elastic fixing ring 12 and an air escape valve 5 in sequence from the left end to the right end. When the air pressure in the second tube body 2 is greater than the deflation pressure set by the air escape valve 5, the excess gas can be discharged from the air escape valve 5, which can prevent the inhalation pressure in the second tube body 2 from being too high and causing lung damage to the newborn. In this embodiment, the deflation pressure of the air escape valve 5 is set to four levels, including 0 cmH 2 O, 20cmH 2 O, 40cmH 2 O, 70cmH2O, of which 0cmH 2 O means fully open, 20cmH 2 O is the routine resuscitation pressure recommended by the guidelines for neonatal asphyxia resuscitation, 40cmH 2 O is the pressure used in premature infants or difficult resuscitation recommended by the guidelines for neonatal asphyxia resuscitation, 70cmH 2 O means completely off.

[0027] Two elastic fixing rings 12 are provided, and the two elastic fixing rings 12 are used to be clamped on the box wall of the heat preservation box 9, so as to fix the tube body.

[0028] The right end of the second tube body 2 is connected with a telescopic tube 3, which is a threaded tube that can be stretched or compressed and can be stretched or shortened as needed. The right end of the telescopic tube 3 is used to connect the resuscitation bag.

[0029] The method of using the neonatal breathing extension tube is as follows:

[0030] like Figure 2 As shown, the incubator 9 is provided with an operation hole 10 and a pipe hole 11. The pipe hole 11 can be used for the passage of an infusion tube or a breathing tube. One end of the second pipe is inserted into the incubator 9 through the pipe hole 11 of the incubator 9, so that the two elastic fixing rings 12 on the second pipe are just clamped on the wall of the incubator 9, thereby fixing the second pipe. At this time, the exhaust valve 5 is located outside the incubator 9, and the telescopic tube 3 on the second pipe is connected to the resuscitation bag, and the deflation pressure of the exhaust valve 5 is adjusted according to the situation; the first pipe is sent into the incubator 9 through the operation hole 10, one end of the first pipe is connected to one end of the second pipe, and the other end of the first pipe is connected to the tracheal tube or breathing mask worn by the newborn. By continuously squeezing the resuscitation bag, the second pipe is filled with oxygen / air. It only needs to discharge gas from the exhaust valve 5 during each squeezing of the resuscitation bag to ensure that the air supply pressure in the second pipe is a constant value (that is, the constant value is equal to the deflation pressure set by the exhaust valve 5). In addition, the respiratory airflow can be collected through the side hole 8 connected to the side flow end-of-expiratory connection to monitor the respiratory rate and respiratory function of the newborn in real time.

[0031] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A neonatal breathing extension tube, characterized in that: The invention comprises a tube body, which is used as a breathing extension conduit during clinical resuscitation or transportation of a neonate. One end of the tube body is used to connect to an endotracheal tube or a breathing mask in an incubator (9), and the other end of the tube body extends out of the incubator (9) to connect to a resuscitation bag. A duckbill valve (4) and an air escape valve (5) are arranged on the tube body. The duckbill valve (4) comprises a two-flap valve sheet (6) and an air outlet (7). The two-flap valve sheet (6) is used to control the unidirectional flow of airflow, and the air outlet (7) is used for the exhalation of the neonate. The duckbill valve (4) is close to one end of the tube body connected to the endotracheal tube or the breathing mask, and the air escape valve (5) is close to one end of the tube body connected to the resuscitation bag. The air escape valve (5) is used to prevent excessive inhalation pressure.

2. The neonatal breathing extension tube according to claim 1, characterized in that: The distance between the duckbill valve (4) and one end of the tube body connected to the tracheal tube or the breathing mask is no more than 5 cm.

3. The neonatal breathing extension tube according to claim 1, characterized in that: The tube body is provided with a side hole (8) for connecting the side of the side flow end-of-tidal current. The side hole (8) for connecting the side of the side flow end-of-tidal current can be connected to a carbon dioxide monitoring device for monitoring the respiratory rate and respiratory function of the newborn.

4. The neonatal breathing extension tube according to any one of claims 1 to 3, characterized in that: The tube body comprises a first tube body (1) and a second tube body (2), wherein the first tube body (1) is located in an incubator (9), one end of the second tube body (2) is connected to one end of the first tube body (1), and the other end of the second tube body (2) passes through the incubator (9) and is connected to a resuscitation bag, the duckbill valve (4) is arranged on the first tube body (1), and the air escape valve (5) is arranged on a portion of the second tube body (2) located outside the incubator (9).

5. The neonatal breathing extension tube according to claim 4, characterized in that: The other end of the second tube body (2) is connected to the resuscitation bag via a telescopic tube (3).

6. The neonatal breathing extension tube according to claim 4, characterized in that: Two elastic fixing rings (12) are arranged on the second tube body (2), and the two elastic fixing rings (12) are used to be clamped on the wall of the heat preservation box (9), so that the tube body is fixed on the heat preservation box (9).

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