CN216496922U - L-shaped hinged rotary guide device for rapid bending adjustment of tracheal cannula - Google Patents

Abstract

The utility model discloses an L-shaped hinged rotary guide device for quickly bending and adjusting a tracheal cannula, which comprises a handle, a handle seat, a sliding handle, a guide tube, a telescopic core, a telescopic block and a guide flap, wherein the handle is a solid flat cuboid, an arc angle is arranged at the sideline of the handle, a certain convex radian is arranged on the back side of the handle, the handle seat is connected with the handle and is connected with the handle, the handle seat is connected with the handle into a whole, a certain distance is reserved between the back side of the handle and the closed end of the back side of the handle seat, an annular bulge is arranged at the front end of the handle seat, and the height of the bulge is half of the wall thickness of the handle seat. The utility model ensures that an operator can easily insert the trachea cannula into the glottis of a patient, greatly reduces the requirement on the operator, greatly improves the working efficiency of the operator, saves the cannula inserting time and wins precious time for rescuing the patient.

Description

L-shaped hinged rotary guide device for rapid bending adjustment of tracheal cannula

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an L-shaped hinged rotary guide device for rapid bending adjustment of a tracheal cannula.

Background

The trachea cannula is used for inserting the trachea catheter into the trachea of a patient, is widely applied to medical rescue and surgical anesthesia, is one of the most extensive, most effective and most rapid means in respiratory tract management, plays a vital role in rescuing the life of the patient and reducing the fatality rate, needs to be inserted from the glottis of the patient, increases the difficulty of the intubation of the patient with a special anatomical structure, can not breathe because the patient is anesthetized by anesthetic drugs, and can be in a life danger situation, so that the patient can be ventilated earlier and in time, the life of the patient can be saved, the trachea insertion speed is faster and better, but the traditional trachea cannula has the following defects when being found in daily surgery:

1. at present, trachea cannula is soft in quality on the market, and the intubate does not have crooked regulation structure, and crooked radian can't carry out controllable regulation, leads to the unable accurate glottic access way mouth of orientation in intubate front end, needs the handheld intubate multi-angle of operation doctor to carry out the probe and inserts, and the success rate is low, complex operation, consuming time long, promptly rapidly cure very unfavorable to the patient.

2. The existing few guide core tubes for the tracheal intubation have a certain degree of tracheal intubation bending regulation function, but the guide cores are in a stay wire or pull rod type arch string type, the bent radian of the tracheal intubation is influenced at the bent inner side by the stay wire or the pull rod of the structure, so that the tracheal intubation cannot be bent to a large degree, and the tracheal intubation bending regulation effect is limited.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an L-shaped hinge rotation guide for quick bending adjustment of an endotracheal tube.

The utility model realizes the purpose through the following technical scheme:

a articulated guider that rotates of L type for quick bending adjustment of trachea cannula, including handle, handle seat, sliding handle, stand pipe, flexible core, flexible piece, guide flap, the handle is solid platykurtic cuboid, the sideline department of handle is provided with the arc angle, the handle has certain bellied radian towards the rear side dorsad, with what the handle linked to each other does the handle seat, the handle seat with the handle is even as an organic whole, the handle rear side with handle seat rear side closed end has a certain distance, the handle seat front end has an annular arch, and the arch height is half of handle seat wall thickness, bellied preceding terminal surface with handle seat preceding terminal surface parallel and level, protruding backward extension, extension length are handle seat wall thickness handle seat internal surface below is provided with the direction spout of a rectangular shape, runs through handle seat internal surface and surface, a sliding sleeve is arranged on the outer side of the handle seat and connected to the sliding handle;

the guide tube is connected with the handle seat, the section of the guide tube is circular, the guide tube is divided into two parts, one part is a straight tube part connected with the diameter of the handle seat, the other part is a bending part connected with the straight tube part, the guide tube is hollow, the center of the lower part of the inner surface of the guide tube is upward and is provided with a telescopic cavity, the front end of the telescopic cavity is close to the front end of the guide tube, the length of the telescopic cavity is shorter than that of the guide tube, the front end of the guide tube is provided with an extension hinging part to form an L-shaped structure, the center of the L-shaped structure is provided with a rear half guide groove, the upper half part of the guide groove is dovetail-shaped, namely, the upper part is a trapezoid structure which is narrow below the width, the lower half part is semi-circular arc, the middle of the extension hinging part of the front end of the guide tube is provided with a abdicating groove which is a rectangular groove, the middle parts of two sides of the abdicating groove are respectively provided with a through hole;

the telescopic core is arranged on the inner side of the telescopic cavity, the rear end of the telescopic core is connected to the sliding handle, and the upper half part of the sliding handle is a hollow cylindrical connecting block;

the front end of the telescopic core is provided with the telescopic block, the upper part of the rear end of the telescopic block is provided with a guide block in a dovetail groove shape and matched with the dovetail groove shape at the front end of the guide pipe, the lower part of the rear end of the telescopic block is in a cuboid shape, two sides of the lower end surface are provided with arc angles and matched with a semicircular arc groove at the front end of the guide pipe, the front end of the telescopic block is an abdicating U-shaped groove, the width of the abdicating U-shaped groove is wider than that of the rear end of the telescopic block, the middle parts of two sides of the U-shaped end are close to the front position and are respectively provided with a hinged slotted hole, and the hinged slotted holes are long round holes;

with the stand pipe with flexible piece is connected jointly the guide vane, the guide vane width with the stand pipe diameter is close, the guide vane rear end is articulated piece, articulated piece also is the L type, with the L molding of stand pipe front end is installed relatively, the both sides of articulated piece respectively are provided with articulated shaft one and articulated shaft two, be provided with one in the middle of the guide vane lower part and step down the structure, make department is concave type in the middle of the guide vane, and the degree of depth that descends concavely does half of guide vane thickness, the guide vane is anterior to have a direction application of force protruding, the guide vane is anterior to be provided with the fillet the bellied lower part of direction application of force is provided with a gyro wheel.

Preferably: the handle seat is generally in a hollow cylindrical shape, one end of the hollow cavity of the handle seat is open, the other end of the hollow cavity of the handle seat is closed, and the outer side of the closed end is provided with an arc angle on the end face to form a hemisphere shape.

Preferably: the cross section of the telescopic cavity is annular, the lower part of the telescopic cavity is connected with the lower part of the inner surface of the guide pipe into a whole, the diameter of the telescopic cavity is larger than that of the telescopic core, and the rear end of the telescopic cavity is flush with the rear end of the guide pipe.

Preferably: the telescopic core is cylindrical, the diameter of the telescopic core is smaller than the inner diameter of the telescopic cavity, and the telescopic core can freely move in the telescopic cavity.

Preferably: the first hinge shaft and the second hinge shaft are respectively provided with two hinge shafts which are respectively and symmetrically arranged at the two sides of the hinge block.

Compared with the prior art, the utility model has the following beneficial effects:

1. the tracheal intubation in the market is soft, the intubation has no bending adjusting structure, the bending radian can not be controlled and adjusted, the front end of the tracheal intubation can not accurately face to a glottic access opening, the doctor needs to hold the intubation to perform trial insertion in multiple angles, the requirements of doctor service level are very strict, the success rate is low, the operation is complex, the consumed time is long, and the emergency and quick treatment for a patient are very unfavorable, the existing few tracheal intubation guide core pipes have a certain degree of tracheal intubation bending adjusting function, but the guide core is in a stay wire or pull rod type arch string type, the stay wire or pull rod of the structure influences the bending radian of the tracheal intubation at the bending inner side, the tracheal intubation can not be bent to a large degree, the tracheal intubation bending adjusting effect is limited, the device can greatly reduce the requirements on doctor service capability and reduce doctor pressure, this device air duct front end has the guide flap, and operating personnel can push and pull the sliding handle, adjusts the angle of guide flap, through the angle of adjusting the guide flap, drives the bending of trachea cannula front end to make operating personnel can be very light insert patient glottis department with trachea cannula, to operating personnel's requirement greatly reduced, improved operating personnel's work efficiency greatly, save the intubate time, win the valuable time for rescuing patient.

2. The gyro wheel is installed to the flap front end, and when operating personnel inserted trachea cannula to the glottis from the oral area, by preceding sliding friction between flap front end and the trachea cannula inner wall, become rolling friction, very big reduction the flap when the rotation direction, the flap front end is to the frictional resistance of trachea cannula inner wall, and the flap of being convenient for is changeed turned angle and is driven trachea cannula front end and is buckled.

3. The abdicating mechanism in the middle of the guide flap can reduce the volume of the guide flap, increase the trafficability of the guide flap in a narrow tracheal cannula when the tracheal cannula is inserted, enable operators to quickly intubate the patient, and save the intubation time.

4. The hinge slotted hole of flexible piece is the slotted hole, can guarantee that the guide vane can be free round hinge shaft one and rotate, if the hinge slotted hole is the round hole, the guide vane probably appears and rotates the difficult or dead condition of card.

5. Set up stand pipe front end and articulated piece into L type structure, mutually support, articulated piece is installed in the groove of stepping down of stand pipe front end, and the volume of stand pipe can be reduced greatly to such design because the trachea to patient's intubate is very narrow, if the stand pipe structure is huge, will be very unfavorable for operating personnel's operation, increases the intubate time, also can increase patient's discomfort.

6. The front end of the guide pipe is provided with a guide groove structure, so that the telescopic block can be ensured to move back and forth according to a certain path and can not be separated from a moving position, and the movement track of the guide valve can be ensured to be controllable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an L-shaped hinge rotation guide device for rapid bend adjustment of an endotracheal tube according to the present invention;

FIG. 2 is an exploded view of the guide flap and guide block of the present invention of an L-shaped articulating rotating guide for rapid bend adjustment of an endotracheal tube;

FIG. 3 is an internal structural view of a handle base of the L-shaped articulated turn guide for rapid bend adjustment of endotracheal tubes of the present invention;

FIG. 4 is a view showing a connection structure of a telescopic core and a sliding handle of the L-shaped hinge rotation guide device for rapid bending adjustment of an endotracheal tube according to the present invention;

FIG. 5 is a schematic view of the construction of the telescoping block of the L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes of the present invention;

FIG. 6 is a schematic view of the guide tube end of the L-shaped hinged steering device for rapid bend adjustment of an endotracheal tube of the present invention;

FIG. 7 is a front view of the L-shaped hinged pivoting guide flap, telescoping block, guide tube mounting structure of the present invention for rapid bend adjustment of an endotracheal tube;

FIG. 8 is a schematic view of the guide flap, telescoping block, guide tube mounting structure of the L-shaped articulating rotating guide for rapid bend adjustment of an endotracheal tube of the present invention;

FIG. 9 is a cross-sectional view of the L-shaped hinged pivoting guide for rapid bend adjustment of an endotracheal tube of the present invention with the guide flap, telescoping block, and guide tube mounted structure;

FIG. 10 is a structural view of another state of the L-shaped hinge rotation guide for rapid bend adjustment of an endotracheal tube according to the present invention;

fig. 11 is a structural view of the third state of the guide flap, the telescopic block and the guide tube of the L-shaped hinged rotary guide device for rapid bending adjustment of the tracheal cannula of the present invention.

The reference numerals are explained below:

1. a handle; 2. a handle seat; 3. a sliding sleeve; 4. a sliding handle; 5. a guide tube; 6. a guide flap; 7. a guide force application bulge; 8. a roller; 9. a abdication structure; 10. a second hinge shaft; 11. a first hinge shaft; 12. a hinged block; 13. a guide groove; 14. a yielding groove; 15. an elongate hinge portion; 16. a telescopic block; 17. hinging the slotted hole; 18. a telescopic core; 19. a guide block; 20. yielding U-shaped grooves; 21. a telescoping chamber; 22. connecting blocks; 23. a guide chute.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-11, the L-shaped hinged rotary guide device for rapid bending adjustment of a tracheal cannula comprises a handle 1, a handle seat 2, a sliding handle 4, a guide tube 5, a telescopic core 18, a telescopic block 16 and a guide flap 6, wherein the handle 1 is a solid flat cuboid, an arc angle is arranged at the sideline of the handle 1, a certain convex radian is arranged at the back side of the handle 1, the handle seat 2 is connected with the handle 1 into a whole, a certain distance is arranged between the back side of the handle 1 and the back side closed end of the handle seat 2, an annular bulge is arranged at the front end of the handle seat 2, the height of the bulge is half of the wall thickness of the handle seat 2, the front end surface of the bulge is flush with the front end surface of the handle seat 2, the bulge extends backwards, the extending length is the wall thickness of the handle seat 2, an elongated guide chute 23 is arranged below the inner surface of the handle seat 2 and penetrates through the inner surface and the outer surface of the handle seat 2, a sliding sleeve 3 is arranged outside the handle seat 2 and connected with the sliding handle 4;

the guide tube 5 is connected with the handle seat 2, the section of the guide tube 5 is circular, the guide tube 5 is divided into two parts, one part is a straight tube part connected with the diameter of the handle seat 2, the other part is a bent part connected with the straight tube part, the interior of the guide tube 5 is hollow, the lower center of the inner surface of the guide tube 5 is upward, a telescopic cavity 21 is arranged, the front end of the telescopic cavity 21 is close to the front end of the guide tube 5, the length of the telescopic cavity 21 is shorter than that of the guide tube 5, the front end of the guide tube 5 is provided with an extension hinging part 15 to form an L-shaped structure, a guide groove 13 is arranged at the center of the rear half part of the L-shaped structure, the upper half part of the guide groove 13 is dovetail-shaped, namely, a trapezoid structure with a wide upper part and a narrow lower part, the lower half part is semicircular arc-shaped, a abdicating groove 14 is arranged in the middle of the extension hinging part 15 at the front end of the guide tube 5, and is a rectangular groove and an abdicating part at the middle part at two sides of the abdicating groove 14, each having a through hole;

the inner side of the telescopic cavity 21 is provided with a telescopic core 18, the rear end of the telescopic core 18 is connected to the sliding handle 4, and the upper half part of the sliding handle 4 is a hollow cylindrical connecting block 22;

the front end of the telescopic core 18 is a telescopic block 16, the upper part of the rear end of the telescopic block 16 is a guide block 19 in a dovetail groove shape, the guide block is matched with the dovetail groove shape at the front end of the guide pipe 5, the lower part of the rear end of the telescopic block 16 is in a cuboid shape, two sides of the lower end surface are provided with arc angles, the arc angles are matched with the semi-arc groove at the front end of the guide pipe 5, the front end of the telescopic block 16 is an abdicating U-shaped groove 20, the width of the abdicating U-shaped groove 20 is wider than that of the rear end of the telescopic block 16, the middle parts of two sides of the U-shaped end are close to the front, and are respectively provided with a hinged slotted hole 17, and the hinged slotted hole 17 is a long slotted hole;

what be connected with stand pipe 5 and flexible piece 16 jointly is guide flap 6, guide flap 6 width is close with the stand pipe 5 diameter, guide flap 6 rear end is articulated piece 12, articulated piece 12 also is the L type, install with the L molding of 5 front ends of stand pipe relatively, articulated piece 12 both sides respectively are provided with articulated shaft one 11 and articulated shaft two 10, guide flap 6 lower part centre is provided with a structure of stepping down 9, make the middle department of guide flap 6 be the concave type, the degree of depth of sinking is half of guide flap 6 thickness, guide flap 6 foremost has a direction application of force arch 7, guide flap 6 foremost is provided with the fillet, be provided with a gyro wheel 8 in the lower part of direction application of force arch 7.

Preferably: the handle seat 2 is generally in a hollow cylindrical shape, one end of a hollow cavity of the handle seat 2 is open, the other end of the hollow cavity is closed, and an arc angle is arranged on the end surface of the outer side of the closed end to form a hemisphere shape; the section of the telescopic cavity 21 is annular, the lower part of the telescopic cavity is connected with the lower part of the inner surface of the guide pipe 5 into a whole, the diameter of the telescopic cavity 21 is directly larger than that of the telescopic core 18, and the rear end of the telescopic cavity 21 is flush with the rear end of the guide pipe 5; the telescopic core 18 is cylindrical, the diameter of the telescopic core 18 is smaller than the inner diameter of the telescopic cavity 21, and the telescopic core 18 can freely move in the telescopic cavity 21; two hinge shafts I11 and two hinge shafts II 10 are respectively and symmetrically arranged at the two sides of the hinge block 12.

The working principle and the using method of the utility model are as follows: when an operator needs to perform tracheal intubation on a patient, the angle of the tracheal intubation needs to be adjusted so that the tracheal intubation can be inserted into the glottis from the mouth part by quickly adjusting the direction angle, at the moment, the operator needs to insert the guide flap 6 into the tracheal intubation, at the moment, the operator can pull the sliding handle 4 backwards, the sliding handle 4 drives the telescopic core 18 to move backwards, the telescopic core 18 drives the telescopic block 16 to move backwards, the telescopic block 16 drives the hinged shaft II 10 to pull backwards, the hinged shaft II 10 slowly moves upwards along the hinged groove hole 17, meanwhile, the hinged shaft I11 rotates in through holes at two sides of the abdicating groove 14 at the front end of the guide tube 5, the guide flap 6 rotates anticlockwise around the hinged shaft I11, otherwise, when the operator pushes the sliding handle 4 forwards, the guide flap 6 rotates clockwise around the hinged shaft II 10, and the operator can adjust the front-back distance of the sliding handle 4, the angle of the guide flap 6 is adjusted, and the angle adjustment of the guide flap 6 drives the front end part of the tracheal cannula to synchronously adjust the angle, so that the tracheal cannula can quickly enter the glottis of a patient.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (10)

1. A articulated guider that rotates of L type that is used for quick bending of trachea cannula to adjust, its characterized in that: the handle comprises a handle (1), a handle seat (2), a sliding handle (4), a guide pipe (5), a telescopic core (18), a telescopic block (16) and a guide flap (6), wherein the handle seat (2) is connected with the handle (1), the handle seat (2) is connected with the handle (1) into a whole, a strip-shaped guide sliding chute (23) is arranged below the inner surface of the handle seat (2) and penetrates through the inner surface and the outer surface of the handle seat (2), and a sliding sleeve (3) is arranged outside the handle seat (2) and connected with the sliding handle (4);

the guide tube (5) is connected with the handle seat (2), the guide tube (5) is hollow, the center of the lower portion of the inner surface of the guide tube (5) is upward, a telescopic cavity (21) is arranged, the front end of the telescopic cavity (21) is close to the front end of the guide tube (5), the length of the telescopic cavity (21) is shorter than that of the guide tube (5), an extension hinging part (15) is arranged at the front end of the guide tube (5) to form an L-shaped structure, a guide groove (13) is arranged at the center of the rear half part of the L-shaped structure, and a abdicating groove (14) is formed in the middle of the extension hinging part (15) at the front end of the guide tube (5);

the telescopic core (18) is arranged on the inner side of the telescopic cavity (21), the rear end of the telescopic core (18) is connected to the sliding handle (4), and the upper half part of the sliding handle (4) is a hollow cylindrical connecting block (22);

the front end of the telescopic core (18) is provided with the telescopic block (16), the upper part of the rear end of the telescopic block (16) is provided with a guide block (19) with a dovetail groove shape, the guide block is matched with the dovetail groove shape at the front end of the guide pipe (5), the lower part of the rear end of the telescopic block (16) is provided with a cuboid shape, two sides of the lower end surface are provided with arc angles, the arc angles are matched with the semi-arc groove at the front end of the guide pipe (5), the front end of the telescopic block (16) is provided with a abdicating U-shaped groove (20), the width of the abdicating U-shaped groove (20) is wider than the width of the rear end of the telescopic block (16), the middle parts of the two sides of the U-shaped end are close to the front, each of the U-shaped groove is provided with a hinged groove hole (17), and the hinged groove holes (17) are oblong holes;

connected to the guide tube (5) and the telescopic block (16) together is the guide flap (6), the width of the guide flap (6) is close to the diameter of the guide tube (5), the rear end of the guide flap (6) is provided with a hinged block (12), the hinged block (12) is also L-shaped, is installed opposite to the L-shaped front end of the guide pipe (5), two sides of the hinge block (12) are respectively provided with a first hinge shaft (11) and a second hinge shaft (10), the middle of the lower part of the guide flap (6) is provided with a yielding structure (9), so that the middle of the guide flap (6) is concave, the depth of the concave part is half of the thickness of the guide flap (6), the foremost end of the guide flap (6) is provided with a guide force application bulge (7), the foremost end of the guide flap (6) is provided with a fillet, a roller (8) is arranged at the lower part of the guide force application bulge (7).

2. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the handle seat (2) is generally in a hollow cylindrical shape, one end of a hollow cavity of the handle seat (2) is open, the other end of the hollow cavity is closed, and an arc angle is arranged on the end face of the outer side of the closed end to form a hemisphere shape.

3. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the cross section of the telescopic cavity (21) is annular, the lower part of the telescopic cavity is connected with the lower part of the inner surface of the guide pipe (5) into a whole, the diameter of the telescopic cavity (21) is larger than that of the telescopic core (18), and the rear end of the telescopic cavity (21) is flush with the rear end of the guide pipe (5).

4. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the telescopic core (18) is cylindrical, the diameter of the telescopic core is smaller than the inner diameter of the telescopic cavity (21), and the telescopic core (18) can freely move in the telescopic cavity (21).

5. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the first hinge shaft (11) and the second hinge shaft (10) are respectively two and are symmetrically arranged at the two sides of the hinge block (12).

6. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: handle (1) is solid platykurtic cuboid, the sideline department of handle (1) is provided with the arc angle, handle (1) has certain bellied radian dorsad to the rear side.

7. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: handle (1) rear side with handle seat (2) rear side closed end has the certain distance, handle seat (2) front end has an annular arch, and protruding height is half of handle seat (2) wall thickness, bellied preceding terminal surface with the terminal surface parallel and level before handle seat (2), protruding backward extension, extension length do handle seat (2) wall thickness.

8. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the cross section of the guide pipe (5) is circular, the guide pipe (5) is divided into two parts, one part is a straight pipe part connected with the diameter of the handle seat (2), and the other part is a bent part connected with the straight pipe part.

9. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the upper half part of the guide groove (13) is in a dovetail shape, namely a trapezoidal structure with a wide upper part and a narrow lower part, and the lower half part is in a semicircular arc shape.

10. An L-shaped hinged rotary guide for rapid bend adjustment of endotracheal tubes according to claim 1 characterized in that: the abdicating groove (14) is a rectangular groove, and the middle parts of the two sides of the abdicating groove (14) are respectively provided with a through hole.

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