CN108245277A - A kind of big build pig trachea cannula - Google Patents

Abstract

A tracheal intubation tube for large-sized pigs relates to a tracheal intubation tube and belongs to the field of veterinary medical devices. It solves the current situation that human endotracheal intubation has been used instead of pig endotracheal intubation and has not been used for large-scale pig endotracheal intubation, and a special endotracheal intubation for large-scale pigs has been developed. The intubation includes a release ring, an air bag, a thin drug injection hose, an inflatable thin hose, an intubation body, and a tube head at the tail of the intubation. Covered with an air bag, the end of the intubation tube body is fixedly connected to the tail end of the intubation tube, and the inflatable thin hose passes through the tube wall at one end of the intubation tube body to communicate with the air bag, and the other end is connected to the end of the intubation tube body. The pipe wall passes through, and one end of the drug injection thin hose communicates with the drug release ring, and the other end passes through the pipe wall at the tail end of the intubation pipe body. The invention is suitable for anesthesizing pigs by inserting pig trachea during operation. The invention has the advantages of simple structure, convenient operation, low cost and convenient large-scale production and market promotion.

Description

Endotracheal intubation for a large bodied pig

technical field

The invention relates to the technical field of intubation, in particular to a tracheal intubation for large-sized pigs, which belongs to the field of veterinary medical devices.

Background technique

At present, in terms of using pigs as experimental animals for research, especially when pigs need to be anesthetized during operations, such as embryo transfer and live embryo extraction, most of the anesthesia devices used are muzzle-type anesthesia devices. The sleeve and the pig's snout cannot fit tightly, so that too much anesthetic leaks during the anesthesia process, resulting in waste of anesthetic, unsatisfactory anesthesia effect, and certain physiological impact on experimenters.

Secondly, due to the lack of endotracheal intubation anesthesia for pigs, there is no endotracheal intubation specifically for pigs on the market. On the one hand, the length of the tracheal intubation is too short to be used in large pigs (125-150kg); on the other hand, because the vital capacity of pigs is generally much larger than that of humans, the inner diameter of human intubation is too small to meet the requirements of anesthesia. Respiratory requirements of pigs.

Moreover, the sliding surface airbag adopted on the outer side wall of the front end of the endotracheal tube in the prior art also needs to be improved. The air bag is a tangible structure attached to the outer side wall of the front end of the endotracheal tube, and is directly connected with the tube body of the endotracheal tube. The main function of the balloon is to close the space between the catheter and the tracheal wall after inflation, to prevent air leakage after inflation and to avoid reflux and aspiration of upper respiratory tract secretions or gastric contents, and to fix the endotracheal tube. However, the slippery airbags used in the prior art cannot fully adhere to the tracheal mucosa between the tracheal cartilage rings. On the one hand, secretions or gastric contents are prone to infiltrate into the lower respiratory tract and cause infection. Cause air leakage and lead to poor anesthesia effect.

It can be seen from this that there is a lack of specialized endotracheal intubation for large pigs on the market, and human endotracheal intubation has many deficiencies on the one hand, and on the other hand, endotracheal intubation for humans cannot meet the requirements of pig-related experiments .

Contents of the invention

The present invention aims at the experimental operation of using human tracheal intubation instead of pig tracheal intubation in the current market, solves the current situation that it is not used for large pig tracheal intubation, and improves the existing human tracheal intubation by referring to and improving Technology, developed a special tracheal intubation for large pigs.

The tracheal intubation tube for large pigs of the present invention comprises an intubation tube body, a drug release ring, an air bag, a thin drug injection hose, an inflatable thin hose and a tube head at the tail of the intubation tube; the front end of the intubation tube body is The intubation head, the inside of the intubation head is fixed with a release ring, the outer wall of the intubation head is covered with an air bag; the end of the intubation body is fixedly connected with the intubation tail head; The hose is inside the body of the intubation tube, one end of which is embedded and fixed on the inner wall of the intubation tube body passes through the tube wall to communicate with the air bag, and the other end passes through the tube wall at the tail end of the intubation tube body; One end of the drug injection thin hose is connected with the drug release ring, and the other end passes through the tube wall at the tail end of the intubation tube body.

Preferably, the head of the cannula is made of rigid PVC, the head of the cannula is inclined, and the angle of the inclined surface is 45 degrees.

Preferably, the cannula further includes a Murphy hole, the cannula also includes a Murphy hole, and the head of the cannula is provided with a Murphy hole.

Preferably, the drug release ring is located behind the Murphy hole.

Preferably, the airbag is located on the rear side of the Murphy hole, and the shape of the airbag is in the shape of convex rings, the shape of the convex rings matches the ring structure of the inner wall of the pig's trachea, and the number of convex rings is 6-10, corresponding to There is a gap between adjacent convex rings, the width of the gap is 2-3mm, the width of the single convex ring is 2-2.5mm, and the height is 2.2-2.5mm.

Preferably, the telescopic intubation part is located at the tail end of the intubation tube body and is fixedly connected with the end of the intubation tube. The length of the telescopic intubation part is 10 cm in the contracted state and 20 cm in the stretched state. . .

Preferably, the tail pipe head of the intubation tube is made of rigid PVC material, and its size can be customized and replaced.

Preferably, the material of the cannula main body is soft PVC, the length is 85cm to 95cm, the outer diameter of the cannula main body is 20mm, and the inner diameter is 18mm.

Preferably, the endotracheal tube is divided into three parts by color, the colors are red, yellow, and blue from the beginning to the end, and the lengths of each part are 25cm, 50cm, and 10cm respectively, and the scale is marked on the outer wall of the tube.

Preferably, the one-way inflation valve communicates with the other end of the thin inflation hose, and a filter screen is installed inside the one-way inflation valve.

The tracheal intubation tube for large pigs described in the present invention is mainly used in the research of pigs as experimental animals, especially when pigs need to be inserted into the trachea during the operation to anesthetize the pigs. The disadvantages of the experimental operation of pigs with tracheal intubation are more suitable for related research using pigs as experimental animals or research objects; on the other hand, it effectively reduces the possible complications during the use of traditional sliding airbag tracheal intubation occurrence, especially the occurrence of ventilator-associated pneumonia (VAP). The invention has the advantages of simple structure, convenient operation, less material usage and low cost, and is convenient for large-scale production and market promotion.

Description of drawings

Fig. 1 is a structural schematic diagram of a large pig tracheal intubation tube according to the present invention.

Fig. 2 is a partial enlarged structural schematic diagram of the front end of the intubation tube body according to the present invention.

Fig. 3 is a partial enlarged structural schematic diagram of the tail end of the intubation tube according to the present invention.

Marking: 1-Murphy hole; 2-Drug release ring; 3-Air bag; 4-Injection thin hose; 5-Inflatable thin hose; 6-Retractable intubation part; 8-cannula body; 9-one-way inflation valve.

Detailed ways

The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:

Specific Embodiment 1: Refer to FIG. 1 to illustrate this embodiment. A tracheal intubation tube for large pigs described in this embodiment includes an intubation tube body 8, a drug release ring 2, an air bag 3, a thin tube for drug injection 4, a thin tube for inflation 5, and a tip 7 at the end of the tube; The front end of the intubation tube body 8 is the intubation head, the drug release ring 2 is fixed inside the intubation head, and the outer wall of the intubation head is covered with an air bag 3; It is fixedly connected with the intubation tail tube head 7; the inflatable thin hose 5 is inside the intubation tube body 8, and one end of the inflatable thin hose 5 is embedded and fixed on the inner wall of the intubation tube body 8 to pass through the tube wall and the air bag 3 connected to each other, and the other end passes through the wall of the tail end of the intubation tube body 8; out.

In the specific operation process of the tracheal intubation for large pigs according to the present invention, the pig's mouth is first stretched, and with the assistance of the laryngoscope, the operator can clearly observe the pig's trachea and esophagus, and the intubation tube Insert the head into the pig's trachea; then inflate the airbag 3 through the thin inflatable hose 5. When you feel obvious pressure during the inflation process and cannot inflate the air, it means that the airbag 3 has been fully inflated at this time. Twitch the endotracheal tube so that the rings on the airbag 3 fully fit the folds on the pig's trachea, and then fill the airbag 3 with air through the inflatable thin hose 5 from time to time to ensure that the airbag 3 fits perfectly with the pig's trachea; finally Use medical tape to fix the tracheal intubation at the mouth of the pig. After the fixation is completed, connect the end 7 of the replaceable rigid intubation to the respiratory anesthesia instrument, and turn on the respiratory anesthesia instrument.

During the anesthesia process, when the pig has excessive secretion of mucus in the trachea and causes cough and wheezing, the drug can be injected into the drug injection thin tube 4 through the syringe, and the drug reaches the drug release ring 2 and flows into the pig's trachea to relieve this situation.

When the anesthesia is over, first turn off the breathing anesthesia apparatus, let the pig breathe pure oxygen for a few minutes, then disconnect the replaceable rigid intubation tail end 7, and suck the gas in the air bag 3 through the inflatable thin hose 5 again until Feel the looseness of the endotracheal tube, and finally withdraw the endotracheal tube to complete the anesthesia process.

Specific Embodiment 2. Referring to FIGS. 1 and 2, this embodiment will be described. This embodiment is a further limitation of the tracheal intubation tube for large pigs described in Embodiment 1. In this embodiment, the head of the intubation tube is made of rigid PVC material, the head of the intubation tube is an inclined plane, and the angle of the inclined plane is 45 degree.

The head of the intubation tube is made into a slope shape, which is conducive to the insertion of the intubation tube into the pig's throat and trachea, and at the same time ensures that the intubation head will not cause damage to the pig's throat and pig's trachea when it is inserted into the pig's trachea.

Compared with the prior art, the intubation head of the porcine endotracheal intubation is a rigid pipe section, and the intubation tube body 8 of the porcine endotracheal intubation is a soft pipe section; the hard pipe section is not easily folded and deformed, so The flexible tube section is easy to bend but not easy to fold. When used, the hard tube section, such as the intubation head, is inserted into the pig's trachea as the front end of the intubation tube, and it is not easy to be folded or pushed out in the pig's mouth. 8. During the intubation process, it can fully fit the bending of the pig's trachea, and the design is reasonable.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT III. Referring to FIG. 2, this implementation manner will be described. This embodiment is a further limitation of the tracheal intubation tube for large swine described in the first or second specific embodiment. In this embodiment, the intubation tube also includes a Murphy hole 1 , and the head of the intubation tube is provided with a Murphy hole 1 .

The tracheal intubation tube has a Murphy hole 1 added to the head of the intubation tube, which can be used as a spare ventilation hole to prevent the secretion from blocking the intubation port when the intubation tube is inserted into the pig's mouth or trachea, resulting in the intubation being unable to breathe in and blocking the pig's trachea. breathe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Fourth, refer to FIG. 2 to illustrate this implementation manner. This embodiment is a further limitation of the large pig tracheal intubation described in Embodiment 1 or 3. In this embodiment, the drug release ring 2 is located behind the Murphy hole 1 .

The purpose of setting the drug release ring 2 is: during the anesthesia process, when the pig has excessive secretion of mucus in the trachea and causes cough and wheezing, the drug can be injected into the thin drug injection hose 4 through the syringe. After the drug reaches the drug release ring 2, it can be intubated. Murphy hole 1 in the head flows into the pig's trachea to alleviate this condition.

Specific Embodiment 5. Referring to FIG. 2, this embodiment will be described. This embodiment is a further limitation of the tracheal intubation for large pigs described in Embodiment 1 or 3. In this embodiment, the airbag 3 is located on the rear side of the Murphy hole 1, and the shape of the airbag 3 is in the shape of a convex ring. The shape of the convex rings matches the ring structure of the inner wall of the pig's trachea. The number of convex rings is 6-10. There are gaps between adjacent convex rings. The width of the gap is 2-3mm. The width of a single convex ring is 2-2.5mm, and the height is 2.2-2.5mm.

The main function of the balloon is to close the space between the catheter and the tracheal wall after inflation, to prevent air leakage after inflation and to avoid reflux and aspiration of upper respiratory tract secretions or gastric contents, and to fix the endotracheal tube. However, the slippery airbags used in the prior art cannot fully adhere to the tracheal mucosa between the cartilage rings of the trachea. On the one hand, secretions or stomach contents are prone to infiltrate into the lower respiratory tract and cause infection, thus causing ventilator-associated pneumonia. (VAP) complications; on the other hand, due to the lack of tight fit, it will also cause air leakage, resulting in poor anesthesia effect.

Improve the existing technology and design the sliding airbag into a convex ring shape. The shape of the convex ring matches the ring structure on the inner wall of the pig's trachea. The number of convex rings is preferably 8. When the convex ring-shaped air bag 3 is inserted into the pig In the trachea, the fit between the airbag 3 and the porcine tracheal cartilage ring is tighter, which solves the problem of incomplete fit between the traditional smooth surface airbag and the inner wall of the trachea, and greatly reduces the risk of leakage of the upper respiratory tract and gastric contents. The incidence of air leakage or hypoventilation, thereby reducing the amount of bacteria, sputum or gastroesophageal reflux entering the lung cavity, and reducing the chance of abnormalities caused by coughing, even if there are abnormalities during the operation, intubation will not Easily displaced or coughed up.

Airbag 3 is easy to operate, and its use method is similar to that of traditional sliding-surface airbag tracheal intubation. You only need to pay attention to the inflation volume of the airbag to avoid over-inflation and under-inflation, and no special training is required.

Specific Embodiment Six. Referring to FIG. 3 , this embodiment will be described. This embodiment is a further limitation of the tracheal intubation tube for large pigs described in the first specific embodiment. The tail end of the intubation pipe body 8 is fixedly connected with the intubation tail pipe head 7, and the telescopic intubation part 6 has a length of 10 cm in a contracted state, and a length of 20 cm in an extended state.

By adjusting the telescopic length of the telescopic intubation part 6, the length of the tail end of the intubation tube body 8 can be changed, and the total length of the endotracheal intubation can be adjusted. The telescopic range is 10 cm, which can meet the endotracheal intubation of all large pigs from 125kg to 150kg. Tube lengths vary on demand.

Specific Embodiment Seven. Referring to FIG. 3 , this embodiment will be described. This embodiment is a further limitation of the tracheal intubation tube for large pigs described in Embodiment 1. In this embodiment, the tail tip 7 of the intubation tube is made of rigid PVC material, and its size can be customized and replaced.

The tail tube head 7 of the intubation tube adopts rigid PVC material to facilitate its better connection to the respiratory anesthesia instrument, and the material is more wear-resistant, aging-resistant and durable.

The size of the tail tube head 7 of the intubation tube can be customized and replaced according to the type of respiratory anesthesia apparatus used, which broadens the scope of use of the endotracheal intubation and avoids the limitation of connecting the endotracheal intubation to different types of anesthesia apparatus.

Embodiment 8. Referring to FIG. 1 , this embodiment will be described. This embodiment is a further limitation of the tracheal intubation tube for large pigs described in Embodiment 1. In this embodiment, the material of the intubation tube body 8 is soft PVC, and the length is 85cm to 95cm. The main body has an outer diameter of 20mm and an inner diameter of 18mm.

The material of the intubation tube body 8 is soft PVC, which is easy to bend but not easy to discount. When in use, the intubation tube body 8 can fully fit the bending of the pig's trachea, and the design is reasonable.

The present invention is mainly used for pigs with a body weight of 125-150 kg. The average length from the throat to the bronchus is 25 cm, and the average length from the pig mouth to the throat is 50 cm to 60 cm through the actual data statistics of a large number of individual measurements. The 10cm portion of the respiratory anesthesia instrument should also be reserved externally, so the length of the tracheal intubation should be at least 85cm except for the tail of the intubation tube.

According to the pig's respiratory tract and respiratory characteristics, the present invention prolongs the length of the intubation tube and increases the inner diameter of the intubation tube, eliminating the inconvenience of operation caused by the short length of the human trachea intubation and the inability to insert the trachea into the trachea of large pigs At the same time, the increase of the inner diameter of the cannula also eliminates the phenomenon that the oxygen content of the cannula is too small to meet the lung capacity of the pig due to the small inner diameter of the cannula, which causes shortness of breath and even death of the pig during anesthesia.

Specific Embodiment Ninth. Referring to FIG. 1 , this embodiment will be described. This embodiment is a further limitation of the tracheal intubation tube for large pigs described in the first specific embodiment. In this embodiment, the tracheal intubation tube 8 is divided into three parts by color, and the colors are red, yellow and blue from the beginning to the end. , the length of each part is 25cm, 50cm, 10cm respectively, and the scale is marked on the outer wall of the cannula.

The tracheal intubation tube is inserted into the larynx from the mouth of the pig and then inserted into the bronchus. Due to the different insertion parts, the endotracheal intubation tube is divided into three parts according to the color. The 50cm part from the head to the throat is marked in yellow, and the 10cm part reserved for external connection to the respiratory anesthesia instrument is marked in blue, and the scale is marked at the same time, which is convenient for the experimenter to observe the insertion of the endotracheal tube, which is beneficial to the endotracheal intubation positioning.

DETAILED DESCRIPTION Tenth, refer to FIG. 1 to illustrate this implementation. This embodiment is a further limitation of the tracheal intubation for large pigs described in Embodiment 1. In this embodiment, the one-way inflation valve 9 communicates with the other end of the inflatable thin hose 5, and the one-way inflation valve 9 There is a filter inside.

The one-way inflation valve 9 is connected with the thin inflation hose 5. When the inflation is completed, because it is a one-way valve, the gas will not be released; Inflation valve 9, air bag just can deflate, is used for the one-way inflation of air bag 3.

The tracheal intubation tube for large pigs of the present invention is individually aseptically packaged and a one-time product, which reduces cross-infection caused by repeated use or infection events caused by incomplete sterilization.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific examples of the present invention, and are not intended to limit the present invention, and may also be a reasonable combination of the features described in the above-mentioned implementations, within the spirit and principles of the present invention, Any modifications, equivalent replacements, improvements, etc. should be included in the protection scope of the present invention.

Claims (10)

1. a kind of big build pig trachea cannula, which is characterized in that including intubation pipe shaft (8), drug release ring (2), air bag (3), note Medicine small hose (4), inflation small hose (5) and intubation tail portion tube head (7)；

The front end of the intubation pipe shaft (8) is intubation head, and the inside on the intubation head is fixed with drug release ring (2), is intubated head The outer wall in portion is cased with air bag (3)；

The end of the intubation pipe shaft (8) is fixedly connected with intubation tail portion tube head (7)；

The inflation small hose (5) is simultaneously fixed on intubation pipe shaft (8) in the inside of intubation pipe shaft (8), inflation small hose (5) insertion One end of inner wall is pierced by tube wall and is connected with air bag (3), and the tail end tube wall of the other end from intubation pipe shaft (8) is pierced by；

Described injection small hose (4) one end is connected with drug release ring (2), and the tail end tube wall of the other end from intubation pipe shaft (8) is pierced by.

2. large size pig trachea cannula according to claim 1, which is characterized in that the intubation head is hardness PVC materials Matter, intubation head are inclined-plane, and the angle on inclined-plane is 45 degree.

3. large size pig trachea cannula according to claim 1 or 2, which is characterized in that the intubation further includes Mo Feikong (1), intubation head is equipped with Mo Feikong (1).

4. the large-scale pig trachea cannula according to claim 1 or 3, which is characterized in that the drug release ring (2) is positioned at black luxuriant and rich with fragrance The rear side in hole (1).

5. the large-scale pig trachea cannula according to claim 1 or 3, which is characterized in that the air bag (3) is positioned at Mo Feikong (1) rear side, air bag (3) shape are bulge loop line shape, and the shape of bulge loop line matches with the ring grain structure of pig inner surface of trachea, bulge loop Line number is 6-10, and there are gaps between adjacent bulge loop line, and the width in the gap is 2-3mm, the single bulge loop line Width is 2-2.5mm, is highly 2.2-2.5mm.

6. large size pig trachea cannula according to claim 1, which is characterized in that the intubation further includes telescopic intubation Portion (6), the telescopic intubation portion (6) are fixedly connected positioned at the tail end for being intubated pipe shaft (8) and with intubation tail portion tube head (7), Telescopic intubation portion (6) length in contraction state is 10cm, and in extended configuration, length is 20cm.

7. large size pig trachea cannula according to claim 1, which is characterized in that the intubation tail portion tube head (7) is hard The PVC material of property, size dimension can be customized and replace.

8. large size pig trachea cannula according to claim 1, it is characterised in that：It is described intubation (8) making material be Soft PVC, length are 85cm to 95cm, and the outer diameter for being intubated pipe shaft is 20mm, internal diameter 18mm.

9. large size pig trachea cannula according to claim 1, it is characterised in that：The trachea cannula is divided by color Into three parts, color is followed successively by red, yellow, blue from the beginning to the end, and each section length is respectively 25cm, 50cm, 10cm, while is being intubated Outer wall reference mark.

10. large size pig trachea cannula according to claim 1, it is characterised in that：The unidirectional charging valve (9) is with filling The other end of gas small hose (5) is connected, and strainer is housed inside unidirectional charging valve (9).