Trachea intubation device for rats and mice

Abstract

The utility model provides a tracheal intubation device for rats and mice, which comprises an operating table, a base, a light source and a retention needle, the operating table is provided with a suspension rope for hooking incisor teeth of the rats and the mice, and the operating table and the base are rotatably connected through a rotary positioning component and are positioned after rotating in place; the light source comprises an optical fiber, and an optical fiber connecting part is sleeved on the optical fiber. The retention needle comprises a needle tube and a retention needle connecting part connected with the needle tube, and the optical fiber connecting part is detachably matched with the retention needle connecting part; the tracheal intubation device for the rats and the mice is simple in structure, exquisite in design, convenient to use, wide in application range and high in success rate, the tracheal intubation difficulty of the rats and the mice is reduced, meanwhile, damage to the rats and the mice caused by blind tracheal intubation is avoided, and the experiment efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tracheal intubation devices, in particular to a tracheal intubation device for rats and mice. Background Art

[0002] Mice and rats are the most commonly used experimental animals in medicine. During the experiment, they often need to be intubated, and medication, ventilation, asphyxiation and other operations are performed through the tracheal intubation. Tracheal intubation is also a prerequisite for open-chest surgery and has a great impact on the success rate of the operation.

[0003] Conventional endotracheal intubation methods include direct insertion and insertion after tracheotomy, both of which have obvious disadvantages. Direct insertion is limited by the physiological structure of rats and mice, and is difficult to operate, which can easily cause throat injuries in rats and mice; tracheotomy requires exposing the throat skin and trachea of ​​rats and mice layer by layer, which can easily cause surgical infection, and the postoperative survival rate is low, making long-term research impossible.

[0004] At the same time, compared with other large experimental animals, the glottis of mice and rats is narrow and unclear, and there is also interference from secretions, which makes it more difficult to intubate them. The common intubation operation table for mice and rats is simple in structure, cannot expose a clear view of the glottis, and is not convenient for experimenters to operate.

[0005] Therefore, it is necessary to design a tracheal intubation device for rats and mice that is easy to operate and use so that non-invasive tracheal intubation can be achieved. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a tracheal intubation device for rats and mice. The technical solution adopted by the utility model is as follows:

[0007] A tracheal intubation device for rats and mice, comprising:

[0008] An operating table and a base, wherein a hanging rope for hooking the incisors of rats and mice is arranged on the operating table, and the operating table and the base are rotationally connected through a rotating positioning component and are positioned after being rotated into place; the rotating positioning component includes an existing spring positioning hinge, a rotating shaft with damping, etc.

[0009] The light source comprises an optical fiber, and an optical fiber connector is sleeved on the optical fiber;

[0010] The retention needle comprises a needle tube and a retention needle connecting part connected to the needle tube, wherein the optical fiber connecting part and the retention needle connecting part are detachably matched.

[0011] Preferably, the light source is a cold light source, and the optical fiber extends into the interior of the needle tube when the optical fiber connecting portion is connected to the retention needle connecting portion.

[0012] Preferably, the optical fiber connecting part includes a positioning cylinder which is sleeved on the outside of the optical fiber and has a certain static friction force between the optical fiber and the optical fiber, and a connecting cap which is covered outside the positioning cylinder, and the connecting cap is provided with an internal thread; the positioning cylinder is inserted into the interior of the retention needle connecting part so that the external thread on the retention needle connecting part cooperates with the internal thread of the connecting cap.

[0013] Preferably, a positioning column is provided on the base, and the positioning column cooperates with the operating table support when the operating table is rotated to be parallel to the base by rotating the positioning assembly.

[0014] Preferably, positioning feet are distributed on the lower end surface of the base, and the positioning feet protrude from the lower end surface of the base.

[0015] Preferably, the operating table and / or the base are made of a transparent material, such as a transparent acrylic plate.

[0016] Preferably, the rotation positioning assembly includes a first connecting plate fixedly connected to the base and a second connecting plate fixedly connected to the operating table, a first positioning portion is arranged on the first connecting plate, a second positioning portion is arranged on the second connecting plate, and the first positioning portion and the second positioning portion are hingedly connected through a hinge portion; the rotation positioning assembly has a function of enabling the first positioning portion and the second positioning portion to rotate relative to each other to an unfolded position in which the operating table is perpendicular to the base, and a function of enabling the first positioning portion and the second positioning portion to rotate relative to each other to a folded position in which the operating table is parallel to the base.

[0017] Preferably, the first positioning portion is provided with a lower positioning groove and an upper positioning groove, and the second positioning portion is provided with a strip groove; the rotating positioning assembly also includes a positioning shaft, and when the rotating positioning assembly is in the unfolded position, the positioning shaft simultaneously passes through the upper positioning groove and the strip groove, so that the first positioning portion and the second positioning portion are relatively positioned; when the rotating positioning assembly is in the folded position, the positioning shaft simultaneously passes through the lower positioning groove and the strip groove, so that the first positioning portion and the second positioning portion are relatively positioned.

[0018] Preferably, the rotation positioning assembly also includes a spring and an adjusting handle, wherein both ends of the spring are respectively connected to the positioning shaft and the second positioning part, the positioning shaft passes through the strip groove, and the adjusting handle is connected to and drives the positioning shaft; specifically, one end of the spring is connected to the second positioning part close to the base, and the other end is sleeved on the positioning shaft, and two springs with corresponding positions are arranged in a rotation positioning assembly; when the operating table is pulled to rotate it to the unfolded position, the positioning shaft moves to the opening of the upper positioning groove along the strip groove and is stuck in the upper positioning groove under the pulling force of the spring, so that the first positioning part and the second positioning part are relatively positioned; when the operating table is in the unfolded position, the adjusting handle is pulled to drive the positioning shaft to slide along the strip groove to escape from the opening of the upper positioning groove, so that the operating table can be rotated to the folded position.

[0019] Preferably, a protrusion is provided on the adjustment handle, and the protrusion cooperates with the upper surface of the first positioning portion; when the operating table is in the unfolded position, the adjustment handle is pulled to make the protrusion interfere with the upper surface of the first positioning portion to form a lever structure, so that the adjustment handle drives the positioning shaft to slide along the strip groove to escape from the opening of the upper positioning groove, so that the operating table can be rotated to the folded position.

[0020] The beneficial effects of the utility model are as follows: the tracheal intubation device for mice and rats provided by the invention has a simple structure, sophisticated design, and is easy to use, and can achieve non-invasive tracheal intubation; the device has a wide range of applications and a high success rate, reduces the difficulty of tracheal intubation for mice and rats, and at the same time avoids damage to mice and rats caused by blind tracheal intubation, greatly improving the efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0022] Figure 1 This is a schematic diagram of the unfolded state of the operating table and the base of Example 1;

[0023] Figure 2 Schematic diagram of the light source and retention needle of Example 1;

[0024] Figure 3 This is a schematic diagram of another angle of the unfolded state of the operating table and the base of Example 1;

[0025] Figure 4 This is a schematic diagram of the folded state of the operating table and the base in Example 1;

[0026] Figure 5 This is a schematic diagram of the coordination of the light source and the retention needle in Example 1;

[0027] Figure 6 It is a schematic diagram of the unfolded state of the rotation positioning component;

[0028] Figure 7 This is a schematic diagram of the folded state of the rotation positioning assembly;

[0029] Figure 8 A schematic diagram of the rotation positioning assembly in the unfolded state from another angle;

[0030] In the figure, 1-base, 11-positioning column, 12-positioning foot, 2-operating table, 21-hanging rope, 3-rotating positioning assembly, 31-first connecting plate, 311-first positioning part, 3111-upper surface, 312-lower positioning groove, 313-upper positioning groove, 32-second connecting plate, 321-second positioning part, 322-strip groove, 33-positioning shaft, 34-spring, 35-adjusting handle, 351-bump, 36-hinge part, 4-retention needle, 41-needle tube, 42-retention needle connecting part, 5-light source, 51-optical fiber, 52-optical fiber connecting part, 521-positioning cylinder, 522-connecting cap. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0032] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0033] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0034] Example 1

[0035] like Figure 1-Figure 5 As shown, a tracheal intubation device for rats and mice, comprising:

[0036] An operating table 2 and a base 1, wherein a hanging rope 21 for hooking the incisors of mice and rats is provided on the operating table 2, and is used to hook the incisors of mice and rats, and pull the mouth of mice and rats to expose the glottis. In this embodiment, the hanging rope 21 is made of iron wire, and those skilled in the art can select its material according to their needs; the operating table 2 is rotatably connected to the base 1 through a rotating positioning component 3 and is positioned after being rotated into place, so that the experimenter can adjust the viewing angle to perform experimental operations;

[0037] The light source 5 comprises an optical fiber 51, and an optical fiber connecting portion 52 is sleeved on the optical fiber 51;

[0038] The retention needle 4 comprises a needle tube 41 and a retention needle connecting portion 42 connected to the needle tube 41 , and the optical fiber connecting portion 52 is detachably matched with the retention needle connecting portion 42 .

[0039] In this embodiment, the light source 5 is a cold light source, and the optical fiber 51 extends into the needle tube 41 when the optical fiber connecting part 52 is connected to the retention needle connecting part 42, which can avoid damaging the throat of mice and rats during intubation. The middle hose is an optical fiber, which is easy to reel and adjust, thereby making a simple laryngoscope, which can observe the intubation progress and confirm the tracheal position of mice and rats during tracheal intubation.

[0040] Furthermore, the optical fiber connecting part 52 includes a positioning cylinder 521 which is sleeved on the outside of the optical fiber 51 and has a certain static friction force between the optical fiber 51 and the connecting cap 522 which is covered on the outside of the positioning cylinder 521, and the connecting cap 522 is provided with an internal thread; the positioning cylinder 521 is inserted into the interior of the retention needle connecting part 42 so that the external thread on the retention needle connecting part 42 cooperates with the internal thread of the connecting cap 522.

[0041] A positioning column 11 is provided on the base 1. When the operating table 2 is rotated to be parallel to the base 1 by rotating the positioning assembly 3, the positioning column 11 supports and cooperates with the operating table 2, plays a role of supporting and positioning the operating table 2, and prevents the operating table 2 from continuing to rotate toward the direction close to the base 1 and causing damage to the operating table 2.

[0042] The lower end surface of the base 1 is provided with positioning feet 12, and the positioning feet 12 protrude from the lower end surface of the base 1; in this embodiment, the positioning feet 12 are evenly distributed at the four corners of the base 1, and the bottom surface of the positioning feet 12 is provided with a positioning layer for increasing the friction with the placement platform, such as flexible silicone or rubber, or a suction cup.

[0043] In this embodiment, the operating table 2 and / or the base 1 are made of a transparent acrylic plate.

[0044] The rotation positioning assembly 3 includes a first connecting plate 31 fixedly connected to the base 1 and a second connecting plate 32 fixedly connected to the operating table 2, a first positioning portion 311 is arranged on the first connecting plate 31, a second positioning portion 321 is arranged on the second connecting plate 32, and the first positioning portion 311 and the second positioning portion 321 are hinged by a hinge portion 36; the rotation positioning assembly 3 has the function of making the first positioning portion 311 and the second positioning portion 321 relatively rotate to an unfolded position where the operating table 2 is perpendicular to the base 1, and the function of making the first positioning portion 311 and the second positioning portion 321 relatively rotate to a folded position where the operating table 2 is parallel to the base 1; refer to Figure 6 , Figure 7 In this embodiment, since one end surface of the second positioning portion 321 abuts against the surface of the first connecting plate 31 when the second positioning portion 321 is rotated to the expanded position, it cannot continue to rotate in the direction away from the first connecting plate 31, and the position of the hinge portion 36 ensures that the first connecting plate 31 is not hindered by the second positioning portion 321 when rotating in the direction close to the first connecting plate 31.

[0045] The first positioning portion 311 is provided with a lower positioning groove 312 and an upper positioning groove 313, and the second positioning portion 321 is provided with a strip groove 322; the rotation positioning assembly 3 also includes a positioning shaft 33, when the rotation positioning assembly 3 is in the unfolded position, the positioning shaft 33 passes through the upper positioning groove 313 and the strip groove 322 at the same time, so that the first positioning portion 311 and the second positioning portion 321 are relatively positioned; when the rotation positioning assembly 3 is in the folded position, the positioning shaft 33 passes through the lower positioning groove 312 and the strip groove 322 at the same time, so that the first positioning portion 311 and the second positioning portion 321 are relatively positioned.

[0046] The rotation positioning assembly 3 also includes a spring 34 and an adjustment handle 35, the two ends of the spring 34 are respectively connected to the positioning shaft 33 and the second positioning portion 321, the positioning shaft 33 passes through the strip groove 322, and the adjustment handle 35 is connected to and drives the positioning shaft 33; specifically, one end of the spring 34 is connected to the position of the second positioning portion 321 close to the base 1, and the other end is sleeved on the positioning shaft 33, and two springs corresponding to the positions of the rotation positioning assembly 3 are set in reference Figure 8 When the operating platform 2 is pulled to rotate to the unfolded position, the positioning shaft 33 moves to the opening of the upper positioning groove 313 along the strip groove 322 and is inserted into the upper positioning groove 313 under the pulling force of the spring 34, so that the first positioning portion 311 and the second positioning portion 321 are relatively positioned; when the operating platform 2 is in the unfolded position, the adjusting handle 35 is pulled to drive the positioning shaft 33 to slide along the strip groove 322 to escape from the opening of the upper positioning groove 313, so that the operating platform 2 can be rotated to the folded position.

[0047] The adjusting handle 35 is provided with a protrusion 351, and the protrusion 351 cooperates with the upper surface 3111 of the first positioning portion 311; when the operating table 2 is in the unfolded position, the adjusting handle 35 is pulled so that the protrusion 351 abuts against the upper surface 3111 of the first positioning portion 311 to form a lever structure, so that the adjusting handle 35 drives the positioning shaft 33 to slide along the strip groove 322 to escape from the opening of the upper positioning groove 313, so that the operating table 2 can be rotated to the folded position; for details, refer to Figure 8The adjusting handle 35 is connected to both ends of the positioning shaft 33, and the protrusion 351 is located between the handle of the adjusting handle 35 and the positioning shaft 33. When the handle of the adjusting handle 35 is pulled, the protrusion 351 gradually moves to contact with the upper surface 3111 of the first positioning portion 311, and the handle of the adjusting handle 35 is continued to be pulled. The adjusting handle 35 uses the protrusion 351 as a fulcrum to pry up the positioning shaft 33 so that the positioning shaft 33 moves to the opening of the upper positioning groove 313 to release the positioning of the first positioning portion 311 and the second positioning portion 321, so that the operating platform 2 can be rotated to the folded position. When the operating platform 2 is in the folded position, the positioning shaft 33 is inserted into the lower positioning groove 312 under the pulling force of the spring 34. A curved surface transition is set at the notch of the lower positioning groove 312, so that the positioning shaft 33 can be driven by the strip groove to escape from the lower positioning groove 312.

[0048] In addition, the retention needles for tracheal intubation of mice and rats are available in different sizes and models, suitable for mice and rats of different weights. Please refer to the following table for details:

[0049] Mouse weight (g) 18～25 25～45 Rat weight (g) 180～250 200～350 250～450 Retention needle model 22G 20G 18G 16G 14G

[0050] In summary, the present invention has a sophisticated design, a wide range of applications, a high success rate, reduces the difficulty of tracheal intubation of mice and rats, and avoids damage to mice and rats caused by blind intubation, thereby greatly improving the efficiency of the experiment.

[0051] In order to better illustrate the use of the device, the device is further introduced below in combination with the endotracheal intubation operation steps; the following steps are included:

[0052] First, the transparent operating table 2 formed of the acrylic plate is adjusted to a suitable observation angle by rotating the operating table 2, and the positioning component 3 is rotated to fix the relative position of the operating table 2 and the base 1;

[0053] Then, hook the incisors of rats and mice on the hanging rope 21 made of iron wire, fix the rats and mice, open their mouths and expose the glottis; turn on the light source 5 of the simple laryngoscope, insert the retention needle 4 into the mouths of rats and mice, observe the internal structure of the throat of rats and mice, adjust the needle angle of the retention needle 4, and correctly insert it into the trachea of ​​rats and mice; after the retention needle is inserted, disassemble the optical fiber connector 52 of the optical fiber 51 and the retention needle connector 42, pull out the optical fiber 51, connect the tracheal hose to the retention needle needle tube, and the tracheal hose can be connected to the ventilator for subsequent experiments.

[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A tracheal intubation device for rats and mice, characterized in that: include: An operating table (2) and a base (1), wherein the operating table (2) is provided with a hanging rope (21) for hooking the incisors of rats and mice, and the operating table (2) and the base (1) are rotatably connected via a rotating positioning assembly (3); The light source (5) comprises an optical fiber (51), and an optical fiber connecting portion (52) is sleeved on the optical fiber (51); The retention needle (4) comprises a needle tube (41) and a retention needle connecting portion (42) connected to the needle tube (41), wherein the optical fiber connecting portion (52) is detachably matched with the retention needle connecting portion (42).

2. The tracheal intubation device for rats and mice according to claim 1, characterized in that: The light source (5) is a cold light source, and the optical fiber (51) extends into the interior of the needle tube (41) when the optical fiber connecting portion (52) is connected to the retention needle connecting portion (42).

3. The tracheal intubation device for rats and mice according to claim 2, characterized in that: The optical fiber connecting portion (52) comprises a positioning tube (521) sleeved on the outside of the optical fiber (51) and a connecting cap (522) covered on the outside of the positioning tube (521), wherein the connecting cap (522) is provided with an internal thread; the positioning tube (521) is inserted into the interior of the retention needle connecting portion (42) so that the external thread on the retention needle connecting portion (42) cooperates with the internal thread of the connecting cap (522).

4. The tracheal intubation device for rats and mice according to claim 1, characterized in that: A positioning column (11) is provided on the base (1), and the positioning column (11) supports and cooperates with the operating table (2) when the operating table (2) is rotated to be parallel to the base (1) by rotating the positioning assembly (3).

5. The tracheal intubation device for rats and mice according to claim 1, characterized in that: Positioning feet (12) are distributed on the lower end surface of the base (1), and the positioning feet (12) protrude from the lower end surface of the base (1).

6. The tracheal intubation device for rats and mice according to claim 1, characterized in that: The operating table (2) and / or the base (1) are made of transparent material.

7. The tracheal intubation device for rats and mice according to any one of claims 1 to 6, characterized in that: The rotation positioning assembly (3) comprises a first connecting plate (31) connected to the base (1) and a second connecting plate (32) connected to the operating table (2); a first positioning portion (311) is provided on the first connecting plate (31), and a second positioning portion (321) is provided on the second connecting plate (32); and the first positioning portion (311) and the second positioning portion (321) are hingedly connected via a hinge portion (36); The rotation positioning assembly (3) has a function of relatively rotating the first positioning portion (311) and the second positioning portion (321) to a deployed position where the operating table (2) is away from the base (1), and a function of relatively rotating the first positioning portion (311) and the second positioning portion (321) to a folded position where the operating table (2) and the base (1) are close to each other.

8. The tracheal intubation device for rats and mice according to claim 7, characterized in that: The first positioning portion (311) is provided with a lower positioning groove (312) and an upper positioning groove (313), and the second positioning portion (321) is provided with a strip groove (322); The rotation positioning assembly (3) further comprises a positioning shaft (33); When the rotational positioning assembly (3) is in the unfolded position, the positioning shaft (33) simultaneously passes through the upper positioning groove (313) and the strip groove (322), so that the first positioning portion (311) and the second positioning portion (321) are relatively positioned; when the rotational positioning assembly (3) is in the folded position, the positioning shaft (33) simultaneously passes through the lower positioning groove (312) and the strip groove (322), so that the first positioning portion (311) and the second positioning portion (321) are relatively positioned.

9. The tracheal intubation device for rats and mice according to claim 8, characterized in that: The rotation positioning assembly (3) further comprises a spring (34) and an adjustment handle (35), the two ends of the spring (34) being respectively connected to the positioning shaft (33) and the second positioning portion (321), the positioning shaft (33) passing through the strip-shaped groove (322), and the adjustment handle (35) being connected to and driving the positioning shaft (33); When the operating table (2) is pulled to rotate to the unfolded position, the positioning shaft (33) moves along the strip groove (322) to the opening of the upper positioning groove (313) and is inserted into the upper positioning groove (313) under the pulling force of the spring (34), so that the first positioning portion (311) and the second positioning portion (321) are relatively positioned; When the operating table (2) is in the unfolded position, the adjusting handle (35) is pulled to drive the positioning shaft (33) to slide along the strip groove (322) to escape from the opening of the upper positioning groove (313), so that the operating table (2) can be rotated to the folded position.

10. The tracheal intubation device for rats and mice according to claim 9, characterized in that: A protrusion (351) is provided on the adjustment handle (35), and the protrusion (351) cooperates with the upper surface (3111) of the first positioning portion (311); When the operating table (2) is in the unfolded position, the adjusting handle (35) is pulled so that the protrusion (351) contacts the upper surface (3111) of the first positioning portion (311) to form a lever structure, thereby causing the adjusting handle (35) to drive the positioning shaft (33) to slide along the strip groove (322) to escape from the opening of the upper positioning groove (313), so that the operating table (2) can be rotated to the folded position.

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