Trachea intubation auxiliary device for animal experiment

Abstract

The invention discloses a tracheal intubation auxiliary device for animal experiments, and belongs to the technical field of tracheal intubation assistion.The tracheal intubation auxiliary device comprises an upper mouth sleeve, a lower mouth sleeve and a restraint strap, the upper mouth sleeve and the lower mouth sleeve can be worn on the mouth of a small experimental pig, and the restraint strap is used for restraining the upper mouth sleeve and the lower mouth sleeve on the head of the small experimental pig; after the upper mouth sleeve and the lower mouth sleeve form wearing with the upper arch mouth part and the lower arch mouth part of the small experimental pig, the upper mouth sleeve and the lower mouth sleeve can be in constraint connection with the head of the small experimental pig through the constraint belt; the upper mouth sleeve and the lower mouth sleeve can not be separated from the mouth of the small experimental pig, so that the fixator for fixing the trachea cannula can be always arranged in the oral cavity of the small experimental pig, the trachea cannula is limited, and the trachea cannula is prevented from displacing and being separated from the trachea of the small experimental pig.

Description

Technical Field

[0001] The invention relates to the technical field of endotracheal intubation assistance, and in particular to an endotracheal intubation assistance device for animal experiments. Background Art

[0002] The ultimate goal of the development of experimental animal science is to explore the mysteries of human life, control human diseases and aging, and prolong human life by studying the life phenomena of animals themselves and then extending them to humans.

[0003] Therefore, people are increasingly aware of the importance of experimental animals. Since small experimental pigs have great similarities with humans in anatomy, physiology, and disease mechanisms, they have broad application and development prospects in many aspects of biomedical research, such as tumors, cardiovascular diseases, endocrine diseases, skin burns, and new drug safety evaluation. When using small experimental pigs for surgical experiments, they need to be anesthetized and then intubated to ensure that the small experimental pigs maintain a smooth airway during the operation.

[0004] In the prior art, after the endotracheal tube is inserted into the trachea of ​​a small experimental pig, adhesive tape is used to fix the endotracheal tube at the upper muzzle. However, when the adhesive tape contacts the upper muzzle of the small experimental pig, it is easily affected by oral secretions and the adhesive surface of the adhesive tape is affected, causing the adhesive tape to slip off at the upper muzzle of the small experimental pig, thereby causing the endotracheal tube to fall out of the trachea due to movement, and even causing the risk of suffocation. Summary of the invention

[0005] The embodiment of the present invention provides a tracheal intubation auxiliary device for animal experiments to solve the above-mentioned technical problems.

[0006] The embodiment of the present invention adopts the following technical solution: it includes a tracheal cannula, and also includes an upper muzzle, a lower muzzle and a restraint belt. The upper muzzle and the lower muzzle can be worn on the mouth of a small experimental pig. The upper muzzle and the lower muzzle are rotatably connected. The restraint belt is located at the rear side of the upper muzzle and the lower muzzle. A fixer for fixing the tracheal cannula is provided between the upper muzzle and the lower muzzle.

[0007] Preferably, the cross-sections of the upper muzzle and the lower muzzle are both C-shaped structures, that is, the inner surfaces of the upper muzzle and the lower muzzle are both inner arc surfaces, and the upper muzzle and the lower muzzle are arranged facing each other with inner arc surfaces, so that the upper muzzle and the lower muzzle are combined into a muzzle structure that can be sleeved on the outside of the upper and lower arched mouths of small experimental pigs, and the upper muzzle and the lower muzzle are connected by an adjustment device.

[0008] Preferably, the holder comprises a first clamping plate and a second clamping plate, the first clamping plate is located in the inner surface area of ​​the upper mouthpiece and is close to the bottom of the lower mouthpiece, the upper mouthpiece is provided with strip-shaped through grooves on both sides of the first clamping plate, and the strip-shaped through grooves extend from the inner surface of the upper mouthpiece to the outer surface of the upper mouthpiece, the second clamping plate is located in the inner surface area of ​​the lower mouthpiece and is close to the top of the lower mouthpiece, the lower mouthpiece is provided with strip-shaped through grooves on both sides of the second clamping plate, and the strip-shaped through grooves extend from the inner surface of the lower mouthpiece to the outer surface of the lower mouthpiece;

[0009] Traction belts are fixedly provided on both sides of the first and second clamping plates, and the outer ends of the traction belts on both sides of the first clamping plate pass through the strip-shaped through grooves from the inner surface of the upper mouthpiece to the outer surface area of ​​the upper mouthpiece, and the outer ends of the traction belts on both sides of the second clamping plate pass through the strip-shaped through grooves from the inner surface of the lower mouthpiece to the outer surface area of ​​the lower mouthpiece.

[0010] Preferably, a first clamping plate is provided below the first clamping plate, and the end of the first clamping plate is fixedly connected to the lower part of the first clamping plate; a second clamping plate is provided above the second clamping plate, and the end of the second clamping plate is fixedly connected to the upper part of the second clamping plate;

[0011] The front ends of the first clipping plate and the second clipping plate extend a distance toward the front area of ​​the upper mouthpiece and the lower mouthpiece, and the cross-sections of the first clipping plate and the second clipping plate are both C-shaped structures. After the first clipping plate and the second clipping plate with C-shaped cross-sections are spliced ​​with each other, the inner surface areas of the first clipping plate and the second clipping plate can be combined into a columnar space for placing an endotracheal tube, and the inner surfaces of the first clipping plate and the second clipping plate are both provided with a silicone layer, wherein the outside of the first clipping plate and the second clipping plate is provided with a strap, and the strap can be a strap with an adhesive function such as medical tape.

[0012] Preferably, a Velcro hook surface is provided on the outer surface of the upper mouthpiece in the area above the strip-shaped through groove, and Velcro fur surfaces are provided on the upper surface areas of both ends of the traction belts on both sides of the first clamping plate to be bonded and connected with the Velcro hook surface on the outer surface of the upper mouthpiece;

[0013] A Velcro hook surface is provided on the outer surface of the lower mouthpiece in the area above the strip-shaped through groove, and Velcro fur surfaces are provided on the lower surface areas of both ends of the traction belts on both sides of the second clamping plate to be adhesively connected to the Velcro hook surface on the outer surface of the lower mouthpiece.

[0014] Preferably, the adjustment device is provided with two groups, and the two groups of adjustment devices are respectively provided at two side parts of the upper mouthpiece and the lower mouthpiece, and each group of adjustment devices includes an adjustment member and a baffle, the adjustment member is located at the rear side of the lower mouthpiece, and the adjustment member is fixedly connected to the lower mouthpiece; the baffle covers the outside of the adjustment member, the baffle is rotatably connected to the adjustment member, and the top of the baffle is fixedly connected to the upper mouthpiece.

[0015] Preferably, a guide groove with an arc trajectory is provided on the right side of the baffle, and the arc trajectory of the guide groove is the same as the rotation trajectory of the baffle and the adjusting member. A cylindrical guide member is provided on the right side of the adjusting member corresponding to the guide groove, and the end of the guide member is fixedly connected to the adjusting member, and the top of the guide member extends from the rear side of the baffle into the guide groove. When the adjusting member and the baffle rotate, the guide member on the adjusting member will move synchronously along the trajectory of the guide groove on the baffle.

[0016] Preferably, it also includes a hand-tightening piece, the top of the guide piece extends a distance from the guide groove to the outer area of ​​the baffle, and a thread is provided on the extended portion of the top of the guide piece located on the outer side of the baffle, the bottom of the hand-tightening piece is provided with a thread groove that matches the thread on the guide piece, and a silicone pad is provided around the bottom of the hand-tightening piece around the thread groove.

[0017] Preferably, the restraint belt includes a first restraint belt and two second restraint belts, the first restraint belt is located at the upper part of the upper mouth cover, the front end of the first restraint belt is fixedly connected to the rear top of the upper mouth cover, the end of the first restraint belt is provided with a clamping block, the clamping block is provided with a limiting groove for the two second restraint belts to pass through, the two second restraint belts are respectively located on both sides of the lower mouth cover, the front ends of the two second restraint belts are respectively fixedly connected to the bottom of both sides of the lower mouth cover, and the ends of the two second restraint belts pass through the limiting grooves on the clamping block.

[0018] Preferably, there are two limit grooves on the card block, each of which extends from the rear side of the card block to the upper part and passes through the top of the card block, and a threaded hole is provided at the top of the card block corresponding to each limit groove, and the threaded hole extends from the top of the card block to the corresponding limit groove, and a matching hand-tightening bolt is provided at the position of the card block corresponding to each threaded hole, and a silicone layer is provided at the bottom end of each hand-tightening bolt.

[0019] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0020] Firstly, during the operation, if the endotracheal tube is displaced, it will cause the endotracheal tube to fall out of the trachea of ​​the small experimental pig, and cause the small experimental pig to be at risk of suffocation. Therefore, after the upper and lower mouth covers are worn on the upper and lower arched mouth parts of the small experimental pig, the present invention can be constrained and connected to the head of the small experimental pig through a restraint belt, so that the upper and lower mouth covers will not be separated from the mouth of the small experimental pig, and the fixator that fixes the endotracheal tube can always be placed in the oral cavity of the small experimental pig, thereby limiting the endotracheal tube and preventing the endotracheal tube from being displaced and falling out of the trachea of ​​the small experimental pig.

[0021] Secondly, the first clip plate and the second clip plate can be sleeved with the endotracheal tube to clamp the endotracheal tube, and then the medical tape is used to wrap the outside of the first clip plate and the second clip plate to prevent the first clip plate and the second clip plate from loosening on the endotracheal tube.

[0022] Thirdly, after the traction belts on both sides of the first card plate and the second card plate are attached to the outer surfaces of the corresponding upper and lower mouthpieces, the Velcro fleece surface and the Velcro hook surface form a fitting connection, and a certain adhesion force is generated in the contact area between them, thereby preventing the traction belts on both sides of the first card plate from falling off the outer surface of the upper mouthpiece due to the downward pulling force;

[0023] When in use, the traction belt can be pulled according to the specific position of the endotracheal tube, so that the first clamping plate and the second clamping plate can be adapted and displaced according to the applicable position of the endotracheal tube, and combined with the characteristics of the Velcro hook surface and the fleece surface that can be adhered and connected to each other, the attachment and connection of the traction belt to the corresponding upper mouthpiece and the outer surface of the lower mouthpiece is very convenient.

[0024] Fourthly, the two sets of adjustment devices in the present invention can limit the opening angle between the upper mouthpiece and the lower mouthpiece, thereby preventing the mouth of a small experimental pig from squeezing and deforming the tracheal tube. Secondly, the threaded groove arranged at the bottom of the hand screw can be threadedly matched with the thread on the guide part, so that the operator only needs to loosen or tighten the hand screw to limit and release the opening angle of the upper mouthpiece and the lower mouthpiece during operation.

[0025] Fifth, after the two second restraint belts are connected with the clamp block and the first restraint belt, the first restraint belt can pull the rear part of the upper muzzle, and the two second restraint belts can pull the two sides of the lower muzzle while hanging on the two sides of the ears of the small experimental pig, and combined with the ear root structure of the two sides of the ears of the small experimental pig, the upper muzzle and the lower muzzle can be worn on the mouth of the small experimental pig;

[0026] Then, the hand bolt is rotated to make the silicone layer at the bottom of the hand bolt squeeze the second restraint band inserted into the limit groove, so that the two second restraint bands are stopped in the corresponding limit grooves due to the squeezing of the hand bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0029] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0030] Figure 3 It is a schematic diagram of the structure of the upper mouthpiece and the lower mouthpiece in the present invention;

[0031] Figure 4 The structure of the fixing device in the present invention is shown in FIG. Figure 1 ;

[0032] Figure 5 The structure of the fixing device in the present invention is shown in FIG. Figure 2 ;

[0033] Figure 6 It is a schematic diagram of the structure of the fixing device in the present invention in the use state;

[0034] Figure 7 The structure of the regulating device in the present invention is shown in FIG. Figure 1 ;

[0035] Figure 8 The structure of the regulating device in the present invention is shown in FIG. Figure 2 ;

[0036] Fig. 9 The structure of the regulating device in the present invention is shown in FIG. Figure 3 ;

[0037] Fig.10 It is a disassembly schematic diagram of the regulating device in the present invention;

[0038] Fig.11 It is a structural schematic diagram of the restraining belt in the present invention;

[0039] Fig.12 It is a schematic diagram of the connection between the second restraining belt and the clamping block in the present invention;

[0040] Fig.13 It is a schematic diagram of disassembling the second restraining belt and the clamping block in the present invention.

[0041] Reference numerals

[0042] Endotracheal tube 1, upper mouthpiece 11, lower mouthpiece 12, strip through groove 13, Velcro hook surface 14, restraint belt 2, first restraint belt 21, second restraint belt 22, block 23, limit groove 24, threaded hole 25, hand screw bolt 26, fixer 3, first clamping plate 31, second clamping plate 32, traction belt 33, first clamping plate 34, second clamping plate 35, binding belt 36, clamping member 37, adjusting device 4, adjusting member 41, baffle 42, guide groove 43, guide member 44, hand screw member 45, thread 46, silicone pad 47. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] The embodiment of the present invention provides an endotracheal intubation auxiliary device for animal experiments, comprising an endotracheal intubation tube 1, an upper mouthpiece 11, a lower mouthpiece 12 and a restraint belt 2;

[0046] See attached Figure 1 and 2 As shown, the upper muzzle 11 and the lower muzzle 12 can be worn on the mouth of a small experimental pig, and the upper muzzle 11 and the lower muzzle 12 are rotatably connected. The restraint belt 2 is used to restrain the upper muzzle 11 and the lower muzzle 12 on the head of the small experimental pig. The restraint belt 2 is located at the rear side of the upper muzzle 11 and the lower muzzle 12. A fixer 3 for fixing the tracheal cannula 1 is provided between the upper muzzle 11 and the lower muzzle 12;

[0047] Before use, the endotracheal tube 1 can be inserted into the trachea of ​​the small experimental pig, and ensure that the small experimental pig can breathe smoothly;

[0048] When in use, the mouth of the small experimental pig can be opened, and then the upper muzzle 11 and the lower muzzle 12 can be worn on the mouth of the small experimental pig, and the fixer 3 used to fix the tracheal cannula 1 is located inside the oral cavity of the small experimental pig, and then the restraint belt 2 is used to bind the small experimental pig's head, so that the upper muzzle 11 and the lower muzzle 12 will not fall off after being worn on the mouth of the small experimental pig;

[0049] After the upper muzzle 11 and the lower muzzle 12 are worn on the mouth of the small experimental pig, the fixator 3 is sleeved on the outside of the endotracheal tube 1 and fixed;

[0050] In the prior art, when adhesive tape is used to fix the tracheal tube 1 on the upper arched mouth part, it needs to be wrapped around the upper arched mouth part of the small experimental pig. However, since there is secretion inside the oral cavity of the small experimental pig, when these secretions contact the adhesive surface of the adhesive tape, they will affect the adhesive coating, thereby causing the adhesion of the adhesive tape to decrease. Once the contact part between the adhesive tape and the upper arched mouth part of the small experimental pig is displaced, the tracheal tube 1 will be in a non-fixed state in the oral cavity of the small experimental pig.

[0051] During the operation, once the endotracheal tube 1 is touched and displaced, the endotracheal tube 1 will fall out of the trachea of ​​the small experimental pig, causing the small experimental pig to be at risk of suffocation. Therefore, after the upper mouth cover 11 and the lower mouth cover 12 are worn on the upper and lower arched mouth parts of the small experimental pig, the present invention can be restrained and connected to the head of the small experimental pig through the restraint belt 2, so that the upper mouth cover 11 and the lower mouth cover 12 will not be separated from the mouth of the small experimental pig, and the fixer 3 that fixes the endotracheal tube 1 can always be placed in the oral cavity of the small experimental pig, thereby limiting the endotracheal tube 1 and preventing the endotracheal tube 1 from being displaced and falling out of the trachea of ​​the small experimental pig.

[0052] In a further preferred embodiment, refer to the attached Figure 3 As shown, the cross-sections of the upper muzzle 11 and the lower muzzle 12 are both C-shaped structures, that is, the inner surfaces of the upper muzzle 11 and the lower muzzle 12 are both inner arc surfaces, and the upper muzzle 11 and the lower muzzle 12 are arranged facing each other with inner arc surfaces, so that the upper muzzle 11 and the lower muzzle 12 are combined into a muzzle structure that can be sleeved on the outside of the upper and lower arched mouths of small experimental pigs, and the upper muzzle 11 and the lower muzzle 12 are connected by an adjustment device 4.

[0053] In a further preferred embodiment, refer to the attached Figure 4 As shown, the fixer 3 includes a first clamping plate 31 and a second clamping plate 32, the first clamping plate 31 is located in the inner surface area of ​​the upper mouth cover 11 and is located close to the bottom of the lower mouth cover 12, the upper mouth cover 11 is provided with strip-shaped through grooves 13 on both sides of the first clamping plate 31, and the strip-shaped through grooves 13 extend from the inner surface of the upper mouth cover 11 to the outer surface of the upper mouth cover 11, the second clamping plate 32 is located in the inner surface area of ​​the lower mouth cover 12 and is located close to the top of the lower mouth cover 12, and the lower mouth cover 12 is provided with strip-shaped through grooves 13 on both sides of the second clamping plate 32, and the strip-shaped through grooves 13 extend from the inner surface of the lower mouth cover 12 to the outer surface of the lower mouth cover 12;

[0054] A traction belt 33 is fixedly provided on both sides of the first clamping plate 31 and the second clamping plate 32. The outer ends of the traction belts 33 on both sides of the first clamping plate 31 pass from the inner surface of the upper mouth cover 11 through the strip through groove 13 to the outer surface area of ​​the upper mouth cover 11, and the outer ends of the traction belts 33 on both sides of the second clamping plate 32 pass from the inner surface of the lower mouth cover 12 through the strip through groove 13 to the outer surface area of ​​the lower mouth cover 12.

[0055] In a further preferred embodiment, refer to the attached Figure 5 and 6 As shown, a first clamping plate 34 is disposed below the first clamping plate 31, and the end of the first clamping plate 34 is fixedly connected to the lower part of the first clamping plate 31;

[0056] A second clamping plate 35 is disposed above the second clamping plate 32, and a terminal end of the second clamping plate 35 is fixedly connected to an upper portion of the second clamping plate 32;

[0057] The front ends of the first clamping plate 34 and the second clamping plate 35 both extend a distance to the front area of ​​the upper mouthpiece 11 and the lower mouthpiece 12. The cross sections of the first clamping plate 34 and the second clamping plate 35 are both C-shaped structures. After the first clamping plate 34 and the second clamping plate 35 with C-shaped cross sections are spliced ​​with each other, the inner surface areas of the first clamping plate 34 and the second clamping plate 35 can be combined into a columnar space for placing the endotracheal tube 1. The inner surfaces of the first clamping plate 34 and the second clamping plate 35 are both provided with a silicone layer, wherein the outside of the first clamping plate 34 and the second clamping plate 35 is provided with a strap 36, and the strap 36 can be a strap 36 with an adhesive function such as a medical tape, and a clamping member 37 for clamping an oral thermometer is also fixedly provided below the first clamping plate 31;

[0058] When the upper muzzle 11 and the lower muzzle 12 are worn on the mouth of the small experimental pig, the upper muzzle 11 and the lower muzzle 12 can be placed on the front side of the upper arched mouth of the small experimental pig, and it is ensured that the upper muzzle 11 corresponds to the position of the upper arched mouth and the lower muzzle 12 corresponds to the position of the lower arched mouth. Then, the mouth of the small experimental pig is opened, and the upper muzzle 11 and the lower muzzle 12 are worn toward the outer area of ​​the mouth of the small experimental pig. When wearing, it is necessary to ensure that the inner surface of the upper muzzle 11 covers the outer part of the upper arched mouth of the small experimental pig, and the inner surface of the lower muzzle 12 covers the outer part of the small experimental pig. The first clamping plate 31 and the second clamping plate 32 need to be in the oral cavity of the small experimental pig and at the upper and lower parts of the endotracheal tube 1, wherein the cross-sections of the upper muzzle 11 and the lower muzzle 12 are both C-shaped structures, so that the inner surfaces of the upper muzzle 11 and the lower muzzle 12 are both inner arc surfaces. When the upper muzzle 11 and the lower muzzle 12 are sleeved on the outer part of the upper and lower arched mouths of the small experimental pig, the inner arc surface areas of the inner surfaces of the upper muzzle 11 and the lower muzzle 12 can match the outer shapes of the upper and lower arched mouths of the small experimental pig, and are convenient for wearing;

[0059] Then, the first clamping plate 34 and the second clamping plate 35 with a C-shaped cross section are respectively sleeved on the upper and lower outer surfaces of the endotracheal tube 1. After the first clamping plate 34 and the second clamping plate 35 with a C-shaped cross section are combined, the columnar space formed by the inner surface area of ​​the first clamping plate 34 and the second clamping plate 35 can be used to place the endotracheal tube 1, and can also prevent the inner surfaces of the first clamping plate 34 and the second clamping plate 35 from squeezing the outer surface of the endotracheal tube 1, thereby preventing the endotracheal tube 1 from being squeezed and deformed, thereby preventing the oxygen flow inside from being blocked;

[0060] During operation, it is necessary to pinch the first clamping plate 34 and the second clamping plate 35 at the same time, and ensure that the inner surfaces of the first clamping plate 34 and the second clamping plate 35 can be kept in contact with the outer surface of the endotracheal tube 1, wherein the inner surfaces of the first clamping plate 34 and the second clamping plate 35 are both provided with a silicone layer, so that the inner surfaces of the first clamping plate 34 and the second clamping plate 35 can increase the friction when in contact with the outer surface of the endotracheal tube 1, so that the first clamping plate 34 and the second clamping plate 35 can cooperate with each other to implement a tightened wrapping state for the endotracheal tube 1;

[0061] After the first clamping plate 34 and the second clamping plate 35 are completely connected with the endotracheal tube 1, the medical tape ties 36 can be used to wrap the first clamping plate 34 and the second clamping plate 35. During operation, it is necessary to ensure that the ties 36 are tightly wrapped around the first clamping plate 34 and the second clamping plate 35 to prevent the first clamping plate 34 and the second clamping plate 35 from being loosened on the endotracheal tube 1.

[0062] In order to facilitate the operator to use the strap 36 for winding operation, the front ends of the first clamping plate 34 and the second clamping plate 35 are extended to the front area of ​​the upper mouth cover 11 and the lower mouth cover 12 for a distance, so that the front ends of the first clamping plate 34 and the second clamping plate 35 can extend a distance from the cavity of the small experimental pig, so that the operator can use the strap 36 to wrap the outside of the first clamping plate 34 and the second clamping plate 35. In order to ensure that the endotracheal tube 1 cannot be connected to the first clamping plate 34 and the second clamping plate 35, a bandage 36 made of medical tape can be wrapped around the outside of the first clamping plate 34 and the second clamping plate 35, and then wrapped around the tracheal tube 1 exposed on the front side of the mouth of the small experimental pig for several turns, and the bandage 36 and the first clamping plate 34, the second clamping plate 35 and the outside of the tracheal tube 1 are tightly wrapped by the adhesion of the medical tape, so as to increase the stability of the first clamping plate 34 and the second clamping plate 35 after forming a sleeve state on the tracheal tube 1;

[0063] After the endotracheal tube 1 is inserted into the trachea of ​​the small experimental pig, if the endotracheal tube 1 shakes widely, the end of the endotracheal tube 1 is easy to squeeze the epiglottis of the small experimental pig, thereby causing the small experimental pig to choke. In severe cases, it may even cause severe choking and cause chest wall muscle rigidity and tracheal spasm, thereby causing a sudden decrease in ventilation and hypoxia. Therefore, after the first clamping plate 34 and the second clamping plate 35 complete the fixation of the endotracheal tube 1, the traction belts 33 on both sides of the first clamping plate 31 and the second clamping plate 32 can be respectively moved to the upper mouthpiece 11 and the lower mouthpiece 12. The mouthpiece 12 is pulled in both sides so that the traction belt 33 can be in a taut state and exert a pulling effect on both sides of the first clamping plate 31 and the second clamping plate 32 to ensure that the first clamping plate 31 and the second clamping plate 32 will not swing up and down in the cavity of the small experimental pig, and the endotracheal tube 1 will not swing widely in the oral cavity of the small experimental pig, which can effectively prevent the endotracheal tube 1 from falling out of the trachea of ​​the small experimental pig and prevent the endotracheal tube 1 from squeezing and irritating the epiglottis of the small experimental pig due to large-scale shaking, thereby preventing hypoxia.

[0064] In a further preferred embodiment, refer to the attached Figure 3 and 4 As shown, a Velcro hook surface 14 is provided on the outer surface of the upper mouth cover 11 in the area above the strip-shaped through groove 13, and Velcro fur surfaces are provided on the upper surface areas of both ends of the traction belts 33 on both sides of the first clamping plate 31 to be bonded and connected with the Velcro hook surface 14 on the outer surface of the upper mouth cover 11;

[0065] The outer surface of the lower mouthpiece 12 is provided with a Velcro hook surface 14 in the area above the strip-shaped through groove 13, and the lower surface areas of both ends of the traction belts 33 on both sides of the second clamping plate 32 are provided with Velcro fur surfaces that are bonded and connected to the Velcro hook surface 14 on the outer surface of the lower mouthpiece 12;

[0066] After the traction belts 33 on both sides of the first clamping plate 31 and the second clamping plate 32 are tightened, the traction belts 33 on both sides of the first clamping plate 31 can be pulled upwardly toward the upper part of the upper muzzle 11 at the same time, and the strip through grooves 13 on the upper muzzle 11 can limit the traction belt 33 in the outer area of ​​the upper muzzle 11, so that the portion where the traction belt 33 contacts the strip through grooves 13 when being pulled upwards will be bent, thereby ensuring that the traction belt 33 in the cavity of the small experimental pig can be in a tight state, and then the traction belts 33 on both sides of the first clamping plate 31 are fitted and covered with the Velcro hook surface 14 area on the outer surface of the upper muzzle 11, and the Velcro fur surface on the traction belts 33 on both sides of the first clamping plate 31 can be bonded and connected with the Velcro hook surface 14 corresponding to the outer surface of the upper muzzle 11, so that the traction belts 33 on both sides of the first clamping plate 31 can be fixed on the outer surface of the upper muzzle 11 after the first clamping plate 31 is pulled;

[0067] After completing the operation of the traction belts 33 on both sides of the first clamping plate 31, the traction belts 33 on both sides of the second clamping plate 32 can be simultaneously pulled to the bottom of the lower muzzle 12 (during operation, it is necessary to ensure that the second clamping plate 32 corresponds to the first clamping plate 31 and does not deviate from the position), and the strip through groove 13 on the lower muzzle 12 limits the traction belt 33 in the outer area of ​​the lower muzzle 12, and makes the part where the traction belt 33 contacts with the strip through groove 13 when being pulled downward also bend, thereby ensuring that the traction belt 33 in the cavity of the small experimental pig can be in a taut state, and then the traction belts 33 on both sides of the second clamping plate 32 are pulled out from the strip through groove 13 of the lower muzzle 12. The part passing through the second clamping plate 32 is fitted and covered with the Velcro hook surface 14 area on the outer surface of the lower mouthpiece 12, and the Velcro fur surface on the traction belt 33 on both sides of the second clamping plate 32 can be attached and connected with the Velcro hook surface 14 corresponding to the outer surface of the lower mouthpiece 12, so that the traction belt 33 on both sides of the second clamping plate 32 can be fixed on the outer surface of the lower mouthpiece 12 after the second clamping plate 32 is pulled;

[0068] In use, taking the traction belts 33 on both sides of the first clamping plate 31 as an example, when the Velcro fur surface of the traction belts 33 on both sides of the first clamping plate 31 forms a fitting connection with the Velcro hook surface 14 on the outer surface of the upper mouth cover 11, if the endotracheal tube 1 is touched by an external force, the force exerted on the endotracheal tube 1 will be transmitted to the traction belts 33 on both sides of the first clamping plate 31. At this time, due to the limitation of the strip through grooves 13 on both sides of the upper mouth cover 11, the traction will be bent, and then the force exerted on the endotracheal tube 1 will exert a downward pulling force on the traction belts 33 outside the upper mouth cover 11. After the Velcro fur surface and the Velcro hook surface 14 form a fitting connection, a certain adhesion force will be generated in the contact area between them, thereby preventing the traction belts 33 on both sides of the first clamping plate 31 from falling off the outer surface of the upper mouth cover 11 due to the downward pulling force.

[0069] Secondly, the strip-shaped through grooves 13 provided on the upper mouthpiece 11 and the lower mouthpiece 12 can be used for position adjustment after the traction belt 33 is inserted. When in use, the traction belt 33 can be pulled according to the specific position of the endotracheal tube 1, so that the first clamping plate 31 and the second clamping plate 32 can be adapted and displaced according to the applicable position of the endotracheal tube 1, and combined with the characteristics of the Velcro hook surface 14 and the fleece surface that can be adhered and connected to each other, the traction belt 33 can be adjusted at any time during use. The fixed position on the outer surface of the upper mouthpiece 11 and the lower mouthpiece 12 has the advantage of convenient operation.

[0070] In a further preferred embodiment, refer to the attached Figure 7 and 8 As shown, the adjusting device 4 is provided with two groups, and the two groups of adjusting devices 4 are respectively provided with two side parts of the upper mouthpiece 11 and the lower mouthpiece 12, and each group of adjusting devices 4 includes an adjusting member 41 and a baffle 42;

[0071] See attached Figures 8 to 10 As shown, the adjusting member 41 is located at the rear side of the lower mouthpiece 12, and the adjusting member 41 is fixedly connected to the lower mouthpiece 12, the baffle 42 covers the outer side of the adjusting member 41, the baffle 42 is rotatably connected to the adjusting member 41, and the top of the baffle 42 is fixedly connected to the upper mouthpiece 11; a guide groove 43 with an arc trajectory is provided on the right side of the baffle 42, and the arc trajectory of the guide groove 43 is the same as the rotation trajectory of the baffle 42 and the adjusting member 41, and a cylindrical guide member 44 is provided at the position of the right side of the adjusting member 41 corresponding to the guide groove 43, the end of the guide member 44 is fixedly connected to the adjusting member 41, and the top of the guide member 44 extends from the rear side of the baffle 42 to the guide groove 43, when the adjusting member 41 and the baffle 42 rotate, the guide member 44 on the adjusting member 41 will move synchronously along the trajectory of the guide groove 43 on the baffle 42.

[0072] In a further preferred embodiment, refer to the attached Fig.10As shown, it also includes a hand screw 45, the top of the guide member 44 extends a distance from the guide groove 43 to the outer area of ​​the baffle 42, and the top of the guide member 44 is provided with a thread 46 on the extended portion outside the baffle 42, the bottom of the hand screw 45 is provided with a thread groove matched with the thread 46 on the guide member 44, and the bottom of the hand screw 45 is provided with a silicone pad 47 around the thread groove;

[0073] During the operation, if the mouth of the small experimental pig bites the tracheal cannula 1, the tracheal cannula 1 will be squeezed and deformed, which will affect the oxygen flow. Therefore, the mouth of the small experimental pig needs to be opened to prevent the tracheal cannula 1 from being squeezed.

[0074] The two sets of adjustment devices 4 in the present invention can limit the opening angle between the upper muzzle 11 and the lower muzzle 12. Taking one set of adjustment devices 4 as an example, (in the initial state, the thread groove portion of the hand-tightening member 45 is sleeved on the thread 46 portion of the guide member 44 from the outside of the baffle 42), after the upper muzzle 11 and the lower muzzle 12 are worn on the mouth of the small experimental pig, the hand-tightening member 45 can be slightly rotated so that the silicone pad 47 at the bottom of the hand-tightening member 45 is not in contact with the baffle 4 2, and then open the front sides of the upper and lower mouthpieces 11 and 12 along the rotating connection between the baffle plate 42 and the adjusting member 41, so that the front sides of the upper and lower mouthpieces 11 and 12 are in an open state. When the opening angle of the upper and lower mouthpieces 11 and 12 is adjusted, the guide member 44 on the adjusting member 41 will move synchronously in the guide groove 43 on the baffle plate 42. When the opening angle of the upper and lower mouthpieces 11 and 12 is adjusted, the hand-tightening member 41 can be tightened. 5, so that the thread groove at the bottom of the hand-tightening member 45 and the thread 46 on the guide member 44 produce thread 46 cooperation, and cause the silicone pad 47 at the bottom of the hand-tightening member 45 to contact the area around the guide groove 43 on the baffle 42. As the hand-tightening member 45 drives the silicone pad 47 to form a stop with the outer part of the baffle 42, the silicone pad 47 will be deformed due to the extrusion of the hand-tightening member 45 and the baffle 42, and a large friction force will be generated between the hand-tightening member 45 and the baffle 42, so that the hand-tightening member 45 can be squeezed from both sides of the baffle 42 with the adjusting member 41, so as to limit the rotatable state between the adjusting member 41 and the baffle 42, and limit the opening angle adjustment of the upper mouthpiece 11 and the lower mouthpiece 12 to achieve a locking effect. After completing the opening angle restriction of the upper mouthpiece 11 and the lower mouthpiece 12, the traction belt 33 on both sides of the first clamping plate 31 and the second clamping plate 32 can be adjusted to ensure that the traction belt 33 remains in a tight state;

[0075] At the same time, the thread groove set at the bottom of the hand screw 45 can cooperate with the thread 46 on the guide member 44, so that the operator only needs to loosen or tighten the hand screw 45 to limit and release the opening angle of the upper mouthpiece 11 and the lower mouthpiece 12 during operation, which has the advantage of convenience and speed in operation.

[0076] In a further preferred embodiment, refer to the attached Fig.11 As shown, the restraint belt 2 includes a first restraint belt 21 and two second restraint belts 22, the first restraint belt 21 is located at the upper part of the upper mouth cover 11, the front end of the first restraint belt 21 is fixedly connected to the top of the rear side of the upper mouth cover 11, the end of the first restraint belt 21 is provided with a clamping block 23, the clamping block 23 is provided with a limiting groove 24 for the two second restraint belts 22 to penetrate, the two second restraint belts 22 are respectively located on both sides of the lower mouth cover 12, the front ends of the two second restraint belts 22 are respectively fixedly connected to the bottom of both sides of the lower mouth cover 12, and the ends of the two second restraint belts 22 penetrate into the limiting groove 24 on the clamping block 23;

[0077] See attached Fig.12 and 13 As shown, there are two limit grooves 24 on the clamping block 23, each of which extends from the rear side of the clamping block 23 to the upper part and passes through the top of the clamping block 23, and a threaded hole 25 is provided at the top of the clamping block 23 corresponding to each limit groove 24, and the threaded hole 25 extends from the top of the clamping block 23 to the corresponding limit groove 24, and a matching hand-tightening bolt 26 is provided at the position of the clamping block 23 corresponding to each threaded hole 25, and a silicone layer is provided at the bottom end of each hand-tightening bolt 26;

[0078] When wearing the upper muzzle 11 and the lower muzzle 12, the first restraint belt 21 can be pulled to the top of the head of the small experimental pig, and then the two second restraint belts 22 can be pulled from the lower parts of the cheeks of the small experimental pig to the rear parts of the ears on both sides, and then the two second restraint belts 22 can be passed around the rear parts of the ears on both sides of the small experimental pig and then pulled onto the block 23 at the same time, and then the ends of the two second restraint belts 22 can be respectively inserted into the two corresponding limit grooves 24 on the block 23, and the two second restraint belts can be pulled to the rear parts of the ears on both sides of the small experimental pig. The end of the belt 22 passes through the limiting groove 24 along the top of the block 23. At this time, after the two second restraint belts 22 are connected with the block 23 and the first restraint belt 21, the first restraint belt 21 can pull the rear part of the upper muzzle 11, and the two second restraint belts 22 can pull the two sides of the lower muzzle 12 and hang on the two sides of the ears of the small experimental pig. In combination with the ear root structure of the two sides of the ears of the small experimental pig, the upper muzzle 11 and the lower muzzle 12 can be worn on the mouth of the small experimental pig;

[0079] During operation, the two second restraint belts 22 need to be adjusted according to the size of the small experimental pig to ensure that the two second restraint belts 22 can be hung on the cheeks and the back of the ears of the small experimental pig. Then, the hand-tightening bolt 26 is rotated to make the hand-tightening bolt 26 screwed into the threaded hole 25 on the clamping block 23 until the silicone layer at the bottom of the hand-tightening bolt 26 squeezes the second restraint belt 22 inserted into the limiting groove 24. In this way, the friction force of the bottom end of the hand-tightening bolt 26 squeezing the second restraint belt 22 can be increased through the silicone layer, so that the two second restraint belts 22 are in a stopped state in the corresponding limiting groove 24 due to the squeezing of the hand-tightening bolt 26, and then the usable length of the two second restraint belts 22 can be adjusted, and after the length adjustment is completed, they are locked to prevent the two second restraint belts 22 from loosening from the limiting groove 24 on the clamping block 23, causing the upper muzzle 11 and the lower muzzle 12 to be unable to be worn normally.

[0080] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A tracheal intubation auxiliary device for animal experiments, comprising a tracheal intubation tube (1), characterized in that: Also includes: An upper muzzle (11) and a lower muzzle (12), wherein the upper muzzle (11) and the lower muzzle (12) can be worn on the mouth of a small experimental pig, and the upper muzzle (11) and the lower muzzle (12) are rotatably connected; A restraint belt (2) is used to restrain the upper muzzle (11) and the lower muzzle (12) on the head of the small experimental pig, wherein the restraint belt (2) is located at the rear side of the upper muzzle (11) and the lower muzzle (12); A fixer (3) for fixing the tracheal cannula (1) is arranged between the upper mouthpiece (11) and the lower mouthpiece (12).

2. The endotracheal intubation auxiliary device for animal experiments according to claim 1, characterized in that: The cross-sections of the upper muzzle (11) and the lower muzzle (12) are both C-shaped structures, that is, the inner surfaces of the upper muzzle (11) and the lower muzzle (12) are both inner arc surfaces, and the upper muzzle (11) and the lower muzzle (12) are arranged to face each other with the inner arc surfaces, so that the upper muzzle (11) and the lower muzzle (12) are combined into a muzzle structure that can be sleeved on the outer part of the upper and lower arched mouths of small experimental pigs, and the upper muzzle (11) and the lower muzzle (12) are connected via an adjustment device (4).

3. The endotracheal intubation auxiliary device for animal experiments according to claim 1, characterized in that: The holder (3) comprises a first clamping plate (31) and a second clamping plate (32), wherein the first clamping plate (31) is located in the inner surface area of ​​the upper mouthpiece (11) and is close to the bottom of the lower mouthpiece (12), and strip-shaped through grooves (13) are provided on both sides of the first clamping plate (31) on the upper mouthpiece (11), and the strip-shaped through grooves (13) extend from the inner surface of the upper mouthpiece (11) to the outer surface of the upper mouthpiece (11); The second clamping plate (32) is located in the inner surface area of ​​the lower mouthpiece (12) and is located close to the top of the lower mouthpiece (12). The lower mouthpiece (12) is provided with strip-shaped through grooves (13) on both sides of the second clamping plate (32). The strip-shaped through grooves (13) extend from the inner surface of the lower mouthpiece (12) to the outer surface of the lower mouthpiece (12); Both sides of the first clamping plate (31) and the second clamping plate (32) are fixedly provided with traction belts (33), and the outer ends of the traction belts (33) on both sides of the first clamping plate (31) pass from the inner surface of the upper mouthpiece (11) through the strip-shaped through groove (13) to the outer surface area of ​​the upper mouthpiece (11); The outer ends of the traction belts (33) on both sides of the second clamping plate (32) pass from the inner surface of the lower mouthpiece (12) through the strip-shaped through groove (13) to the outer surface area of ​​the lower mouthpiece (12).

4. The endotracheal intubation auxiliary device for animal experiments according to claim 3, characterized in that: A first clamping plate (34) is provided below the first clamping plate (31), and the end of the first clamping plate (34) is fixedly connected to the lower part of the first clamping plate (31); A second clamping plate (35) is arranged above the second clamping plate (32), and the end of the second clamping plate (35) is fixedly connected to the upper part of the second clamping plate (32); The front ends of the first clamping plate (34) and the second clamping plate (35) both extend a distance toward the front area of ​​the upper mouthpiece (11) and the lower mouthpiece (12); the cross-sections of the first clamping plate (34) and the second clamping plate (35) are both C-shaped structures; and after the first clamping plate (34) and the second clamping plate (35) with C-shaped cross-sections are spliced ​​with each other, the inner surface areas of the first clamping plate (34) and the second clamping plate (35) can be combined into a columnar space capable of being placed for the endotracheal tube (1); and the inner surfaces of the first clamping plate (34) and the second clamping plate (35) are both provided with a silicone layer; Wherein, the first clamping plate (34) and the second clamping plate (35) are provided with binding straps (36) on the outside, and the binding straps (36) can be binding straps (36) with adhesion function such as medical tape.

5. The endotracheal intubation auxiliary device for animal experiments according to claim 3, characterized in that: A Velcro hook surface (14) is provided on the outer surface of the upper mouthpiece (11) in an area above the strip-shaped through groove (13), and Velcro fleece surfaces are provided on the upper surface areas at both ends of the traction belts (33) on both sides of the first clamping plate (31) for bonding and connecting with the Velcro hook surface (14) on the outer surface of the upper mouthpiece (11); A Velcro hook surface (14) is provided on the outer surface of the lower mouthpiece (12) in an area above the strip-shaped through groove (13), and Velcro fleece surfaces are provided on the lower surface areas at both ends of the traction belts (33) on both sides of the second clamping plate (32) for adhesive connection with the Velcro hook surface (14) on the outer surface of the lower mouthpiece (12).

6. The endotracheal intubation auxiliary device for animal experiments according to claim 1, characterized in that: The adjusting device (4) is provided in two groups, and the two groups of adjusting devices (4) are respectively provided at two side parts of the upper mouthpiece (11) and the lower mouthpiece (12), and each group of adjusting devices (4) comprises an adjusting member (41) and a baffle (42); The adjusting member (41) is located at the rear side of the lower mouthpiece (12), and the adjusting member (41) is fixedly connected to the lower mouthpiece (12); The baffle (42) covers the outer side of the adjusting member (41), the baffle (42) and the adjusting member (41) are rotatably connected, and the top of the baffle (42) is fixedly connected to the upper mouthpiece (11).

7. The endotracheal intubation auxiliary device for animal experiments according to claim 6, characterized in that: A guide groove (43) with an arc track is arranged on the right side of the baffle (42), and the arc track of the guide groove (43) is the same as the rotation track of the baffle (42) and the adjusting member (41). A cylindrical guide member (44) is arranged on the right side of the adjusting member (41) at a position corresponding to the guide groove (43). The end of the guide member (44) is fixedly connected to the adjusting member (41), and the top end of the guide member (44) extends from the rear side of the baffle (42) into the guide groove (43). When the adjusting member (41) and the baffle (42) rotate, the guide member (44) on the adjusting member (41) will move synchronously along the track of the guide groove (43) on the baffle (42).

8. The endotracheal intubation auxiliary device for animal experiments according to claim 7, characterized in that: The invention also comprises a hand-tightening member (45), wherein the top end of the guide member (44) extends a distance from the guide groove (43) to the outer area of ​​the baffle (42), and a thread (46) is arranged on the extension portion of the top of the guide member (44) located on the outer side of the baffle (42), and the bottom of the hand-tightening member (45) is provided with a thread groove matching the thread (46) on the guide member (44), and a silicone pad (47) is arranged around the thread groove at the bottom of the hand-tightening member (45).

9. The endotracheal intubation auxiliary device for animal experiments according to claim 1, characterized in that: The restraint belt (2) comprises a first restraint belt (21) and two second restraint belts (22); the first restraint belt (21) is located above the upper mouth cover (11); the front end of the first restraint belt (21) is fixedly connected to the top of the rear side of the upper mouth cover (11); a clamping block (23) is provided at the end of the first restraint belt (21); the clamping block (23) is provided with a limiting groove (24) for the two second restraint belts (22) to pass through; the two second restraint belts (22) are respectively located on both sides of the lower mouth cover (12); the front ends of the two second restraint belts (22) are respectively fixedly connected to the bottom of both sides of the lower mouth cover (12); and the ends of the two second restraint belts (22) pass through the limiting grooves (24) on the clamping block (23).

10. The endotracheal intubation auxiliary device for animal experiments according to claim 9, characterized in that: There are two limit grooves (24) on the clamping block (23), each of which extends from the rear side of the clamping block (23) to the upper part and passes through the top of the clamping block (23), and a threaded hole (25) is provided at the top of the clamping block (23) corresponding to each limit groove (24), and the threaded hole (25) extends from the top of the clamping block (23) into the corresponding limit groove (24), and a matching hand-tightening bolt (26) is provided at the position of the clamping block (23) corresponding to each threaded hole (25), and a silicone layer is provided at the bottom end of each hand-tightening bolt (26).

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