CN113117196A

CN113117196A - Artificial respiration bag

Info

Publication number: CN113117196A
Application number: CN201911417002.XA
Authority: CN
Inventors: 徐海萍; 陈岚
Original assignee: Jinhua central hospital
Current assignee: Jinhua central hospital
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16

Abstract

The invention provides a novel artificial respiration leather bag, which comprises an air bag, a face mask and a monitoring device, wherein one end of the air bag is connected with a gas output pipe, the gas output pipe can be directly connected with the face mask, or the monitoring device is connected between the gas output pipe and the face mask, and the monitoring device is detachably connected with a detector. The artificial respiration leather bag with the monitoring device can judge whether the face mask is tightly attached to the face, whether the pressure during pressurizing the air bag at each time meets the extrusion requirement, and can remind a rescuer to adjust the extrusion pressure degree in time. Is worthy of being popularized and applied clinically.

Description

Artificial respiration bag

Technical Field

The invention relates to the field of medical first aid, in particular to a novel artificial respiration leather bag.

Background

The artificial respiration skin sac is a simple tool for artificial ventilation, and is suitable for cardio-pulmonary resuscitation and occasions requiring artificial respiration first aid. Compared with mouth-to-mouth breathing, the oxygen supply concentration is high, and the operation is simple and convenient. Especially, when the patient is suffocated, has difficulty in breathing or needs to increase oxygen supply amount, and the like, and is not in time of tracheal intubation, the pressurizing mask can be used for directly supplying oxygen, so that the patient can obtain sufficient oxygen supply, and the tissue hypoxia state can be improved. The artificial respiration bag has the characteristics of convenient use, light pain, less complication, convenient carrying and immediate ventilation in the presence of oxygen source.

The existing artificial respiration leather bag generally comprises an air inlet valve, an air bag, a one-way valve (duckbill one-way valve), an exhalation valve, a mask and other parts. The working principle is as follows: when the air bag is squeezed, positive pressure is generated to close the air inlet valve, the internal air forcibly pushes the duckbill one-way valve to open and block the exhalation valve, and the air in the air bag is sent to a patient through the central incision of the duckbill valve. If oxygen is used, the oxygen is temporarily stored in the air bag along with the air bag restoring inspiration action, and directly enters the patient body when the air bag is pressed. When the pressed air bag is released, the duckbill valve is pushed upwards instantly and is in a closed state, so that the gas spitted by the patient is released from the exhalation port. Meanwhile, the air inlet valve is opened by the negative pressure generated by the loosening of the air bag, and oxygen in the air storage bag is sent into the air bag until the air bag completely returns to the original shape before extrusion. In order to avoid overhigh pressure in the air bag and the air storage bag caused by overhigh oxygen flow and overlow extrusion times, the air storage safety valve is specially designed to release excessive air so as to maintain low-pressure oxygen supply and ensure the safety of patients.

According to the requirement of the operating specification, when the artificial respiration leather bag is used by adults, the tidal volume is about 500-600 ml. The neonate uses an artificial respiration skin bag, and requires to press the fetus, and the pressure of the pressing is adjusted by controlling the number of the pressed fingers. For example, the skin sac is pressed with the thumb and index finger at about 15-20cmH20, and then with one finger at 5cmH20 increments. (premature infants: 15-20cmH 20; term infants/infant: 25-30cmH 20). The current artificial respiration leather bag has no moisture volume (volume) and pressure monitoring device, and the operation is carried out by the experience of an operator in the actual use of the artificial respiration leather bag, on one hand, the volume and the pressure when the artificial respiration leather bag is used for artificial respiration cannot be accurately known and controlled, on the other hand, the pressing force degree of each person is different, even if the leather bag is pressed by two fingers of a thumb and an index finger, the pressure generated by different persons is different, and if the pressure of the fingers of some persons is extremely high, the pressure generated by the pressure monitoring device can possibly exceed 15-20cmH 20.

During the use of artificial breathing bladders, there can also be instances of the mask not fitting tightly to the face. If the mask is not tightly attached to the face, the air is not sufficiently expelled from the bladder, but leaks, resulting in hypopnea. The condition that the face mask is attached to the face cannot be judged by the artificial respiration leather bag which is clinically used at present, and the artificial respiration leather bag cannot be obtained even if air leaks, so that the using effect is influenced.

Disclosure of Invention

The inventor researches the problems in the prior art according to years of clinical treatment experience to design the artificial respiration leather bag, which comprises an air bag, a face mask and a monitoring device, wherein one end of the air bag is connected with a gas storage bag through a gas input pipe, the other end of the air bag is connected with a gas output pipe, and the gas output pipe can be directly connected with the face mask or the monitoring device is connected between the gas output pipe and the face mask.

Further, the monitoring device comprises a first conical part, a second conical part and a throat part, wherein the smaller ends of the first conical part and the second conical part are respectively towards the throat part; the pipe wall of the throat part is provided with a low-pressure tapping hole and communicated with the low-pressure tapping hole column, the pipe wall of the first cone part is provided with a first high-pressure tapping hole and communicated with the first high-pressure tapping hole column, and the pipe wall of the second cone part is provided with a second high-pressure tapping hole and communicated with the second high-pressure tapping hole column.

In a preferred scheme, a pressure sensor insertion hole is formed in the pipe wall of the monitoring device.

Further, monitoring devices still includes the detector, monitoring devices connects on the detector detachablely. The detector comprises a first differential pressure sensor, a second differential pressure sensor, a pressure sensor and a microprocessor, wherein the differential pressure sensor and the pressure sensor are connected with the microprocessor, and the microprocessor is used for acquiring signals of the sensors and processing the signals. And the pressure guide pipe on the differential pressure sensor is connected to a pressure tapping hole column jack of the detector connecting seat, and the position of the pressure tapping hole column jack corresponds to the low-pressure tapping hole column and the high-pressure tapping hole column of the monitoring device respectively.

The invention has the beneficial effects that: the artificial respiration leather bag with the monitoring device can judge whether the face mask is tightly attached to the face or not, whether air leakage exists or not, and whether the pressure during pressurizing the air bag at every time meets the extrusion requirement or not can be measured through the pressure sensor, so that a rescuer is timely reminded of adjusting the extrusion pressure. Monitoring devices connect on the detector detachablely again, even increased monitoring devices on the one hand, also need not to change original artificial respiration leather bag structure, on the other hand, avoided the cross contamination between the different patients through the ingenious design of getting the pressure hole post.

Drawings

FIG. 1 is a schematic illustration of an artificial respiration bladder prior to assembly.

Figure 2 is a schematic view of the assembled artificial respiration bellows.

FIG. 3 is a schematic view showing the internal structures of the gas inlet tube, the gas outlet tube and the air bag of the artificial respiration bag

Fig. 4 is a schematic view of the internal structure of the monitoring device.

FIG. 5 is a schematic view of the monitoring device assembled with the meter.

FIG. 6 is a schematic diagram of the connection of the monitoring device to a differential pressure sensor or the like.

Detailed Description

The artificial respiration bag shown in fig. 1 to 3 includes an air bag 1, a face mask 2 and a monitoring device 3. One end of the air bag 1 is connected with an air storage bag 5 through a gas input pipe 4, and the other end of the air bag is connected with a gas output pipe 6. The gas outlet conduit 6 may be connected to the mask 2 or the monitoring device 3 may be connected between the gas outlet conduit 6 and the mask 2. In some embodiments, the monitoring device is connected to the gas outlet line 6 and the mask 2 via an adapter tube 8.

The gas input pipe 4 is internally provided with an oxygen storage valve 41 and a gas storage safety valve 42, and the gas output pipe 6 is provided with an expiratory valve 61, a one-way valve 62 and a pressure safety valve 63.

The monitoring device 3 shown in fig. 4 is a tubular structure including a first conical portion 31, a second conical portion 32, and a throat portion 33. The first and second

tapered portions

31 and 32 have smaller diameter ends facing the throat portion 33, respectively. The pipe wall of the throat part 33 is provided with a low-pressure tapping hole 34 and communicated with a low-pressure tapping hole column 35, and the pipe wall of the first cone part 31 is provided with a first high-pressure tapping hole 36 and communicated with a first high-pressure tapping hole column 37. The pipe wall of the second cone part 32 is provided with a second high-pressure tapping hole 38 and is communicated with a second high-pressure tapping hole column 39. The pipe wall of the monitoring device is also provided with a pressure sensor insertion hole 30.

As shown in fig. 5, the artificial respiration bag further includes a detector. In use, the monitoring device 3 is plugged into the connecting socket 70 of the detector 7. The meter includes a first differential pressure sensor 71, a second differential pressure sensor 72, a pressure sensor 73, and a microprocessor 74. The pressure difference sensor and the pressure sensor are connected with the microprocessor, and the microprocessor is used for collecting and processing signals of the sensors.

The first high-pressure tapping hole column 37 is connected with the positive pressure end of a first differential pressure sensor 71, the second high-pressure tapping hole column 39 is connected with the positive pressure end of a second differential pressure sensor 72, and the low-pressure ends of the two differential pressure sensors are respectively connected with the low-pressure tapping hole column 35 through a three-way pipe.

When the air bag 1 is pressed to deliver air to a patient, a first pressure difference sensor is used for measuring the pressure difference between a first high-pressure-taking port and a low-pressure-taking port, and the tidal volume 1 during air delivery is obtained through processing of a microprocessor. When the patient exhales, the pressure difference between the second high-pressure-taking port and the low-pressure-taking port is measured by the second pressure difference sensor, and the tidal volume 2 during the exhalation is obtained. And the microprocessor judges the difference value between the tidal volume 1 and the tidal volume 2, and sends out warning information that the face mask is not tightly attached to the face if the difference value exceeds a preset threshold value. The detector can also be provided with an alarm device, and the microprocessor transmits the warning information to the alarm device and prompts the alarm.

As shown in fig. 6, the pressure guiding pipe 75 of the differential pressure sensor is connected to a pressure tapping hole column insertion hole 701 of the connection base 70, and the positions of the pressure tapping hole column insertion hole 701 correspond to the low pressure tapping hole column and the high pressure tapping hole column of the monitoring device. As shown in the figure, gas enters the low-pressure tapping hole column and the high-pressure tapping hole column through the low-pressure tapping hole and the high-pressure sampling hole respectively. The original air in the pressure tapping hole column and the pressure guide pipe is continuously compressed by the newly-entered gas until the newly-entered gas in the pressure tapping hole column and the original gas establish new balance. The volume of the inner cavity of the pressure tapping column meets the following conditions: after gas enters the pressure tapping hole column through the pressure tapping hole, the newly entering gas can compress the air originally existing in the pressure tapping hole column and the pressure guide pipe pipeline, but the compressed air is always positioned in the pressure tapping hole column at the uppermost end. Because the volume of the cavity inside the pressure tapping hole column is enough to ensure that when new balance is established, newly-entered gas cannot enter the pressure guide pipe, and the connecting seat and the pressure guide pipe which are repeatedly used cannot contact the gas of a patient. Because the monitoring device is disposable, the monitoring device can be detachably connected to the detector during use. Therefore, cross-infection between different patients can be avoided as long as the monitoring device is replaced in time.

In order to ensure the gas tightness of the connection of the pressure guiding pipe and the monitoring device, a sealing element is arranged between the pressure tapping hole column and the pipeline connected with the pressure tapping hole column, for example, a sealing ring 76 is arranged outside the pressure tapping hole column of the monitoring device.

When the monitoring device is attached to the monitor, the pressure sensor 73 of the monitor is inserted into the pressure sensor insertion hole 30 of the monitor. When the gas pressure sensor is used, the gas pressure in the gas channel is transmitted to the microprocessor through the sensor, the data of the pressure in the gas channel is obtained through the processing of the microprocessor, and when the pressure exceeds a preset threshold value, the microprocessor sends out warning information.

The detector is provided with a parameter setting button and a display screen, and rescue workers can set various thresholds and the like according to the conditions of patients. In one embodiment, the microprocessor of the monitor further includes a program for calculating a desired tidal volume based on the input weight of the patient,

the rescuer can decide whether to connect the monitoring device between the gas outlet conduit 6 and the mask 2 depending on the actual situation. For example, in the case of a premature infant, the rescuer connects the detection device between the gas delivery line and the mask and fits the mask against the face of the infant, while the pressure threshold in the detector is set at 15-20cmH 20. If the pressing force degree of the rescue personnel to the air bag exceeds the threshold value, the detector can send out an alarm of overlarge pressure so as to remind the pressing force degree of the rescue personnel and avoid the damage of the air passage of the premature infant.

Claims

1. The utility model provides an artificial respiration leather bag, includes gasbag and face guard, its characterized in that still includes monitoring devices, the one end of gasbag is passed through the gas input tube and is connected with the gas storage bag, and the gas output tube is connected to the other end of gasbag, and the gas output tube can with face guard lug connection, perhaps connects monitoring devices between gas output tube and face guard.

2. The artificial respiration bladder according to claim 1 wherein the monitoring means comprises a first cone portion, a second cone portion and a throat portion, the smaller diameter ends of the first cone portion and the second cone portion respectively facing the throat portion; the pipe wall of the throat part is provided with a low-pressure tapping hole and communicated with the low-pressure tapping hole column, the pipe wall of the first cone part is provided with a first high-pressure tapping hole and communicated with the first high-pressure tapping hole column, and the pipe wall of the second cone part is provided with a second high-pressure tapping hole and communicated with the second high-pressure tapping hole column.

3. The artificial respiration bag according to claim 1, wherein the tube wall of the monitoring device is further provided with a pressure sensor insertion hole.

4. The artificial respiration skin according to claim 1 further comprising a detector, wherein the monitoring device is removably attached to the detector.

5. The artificial respiration leather bag according to claim 4, wherein the detector comprises a first differential pressure sensor, a second differential pressure sensor, a pressure sensor and a microprocessor, the differential pressure sensor and the pressure sensor are connected with the microprocessor, and the microprocessor is used for collecting signals of the sensors and processing the signals.

6. The artificial respiration leather bag according to claim 5, wherein the pressure-transmitting pipe of the pressure-difference sensor is connected to a pressure-tapping hole column jack of the detector connecting base, and the positions of the pressure-tapping hole column jacks correspond to the low-pressure-tapping hole column and the high-pressure-tapping hole column of the monitoring device, respectively.