CN216876312U - Visual pharyngoscope with guide slot - Google Patents

Abstract

The utility model relates to a visual pharyngoscope with a guide groove, which comprises a visual soft lens and a lens body; the mirror body includes the oral cavity portion of putting into of L type, and the oral cavity portion of putting into is equipped with side grooved endotracheal tube guiding groove, and the back of the body curved side of the portion of putting into in the oral cavity is equipped with the soft mirror passageway with visual soft mirror shape structure assorted, and visual soft mirror alternates in the soft mirror passageway. The visual pharyngoscope with the structure has the advantages that the radian of the laryngoscope body can be more matched with the natural radian of the upper respiratory tract formed by the oral throat, the lens body can be aligned to the glottis and clearly displayed without being particularly pulled forcefully after being placed into the oral cavity, the central optical axis of the visual field of the visual soft lens is overlapped with the axis of the tracheal catheter guiding groove in the longitudinal direction, the tracheal catheter placed into the tracheal catheter guiding groove can be accurately positioned in the central part of the visual field, an operator can conveniently and clearly see the relative position relation between the tracheal catheter and the human body, and the operation can be more convenient. The visual pharyngoscope has the characteristics of convenience in operation and high practicability, and simplifies and optimizes the operation.

Description

Visual pharyngoscope with guide slot

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a visual pharyngoscope with a guide groove.

Background

The visual pharyngoscope is an effective device for improving and increasing glottis exposure of the throat, and compared with the traditional direct pharyngoscope, the visual pharyngoscope provides more safety and convenience for clinical work, particularly tracheal intubation.

Although the prior clinically used visible pharyngoscope such as McGrath, UE and other products improve the glottis exposure effect, the oral cavity embedding part is crescent, the shape structure is poorer in fit with the actual anatomical radian, the glottis cannot be completely and sufficiently exposed, the exposure process usually needs larger lifting force, and especially, the poor exposure effect of partial patients with abnormal anatomy such as the small mandible and the large mandible can still occur, so that the clinical operation is difficult. When the pharyngoscope is used for tracheal intubation, an endotracheal tube needs to be placed after being shaped by a guide core, and the process needs more skilled manipulation and skill, so that the endotracheal tube is aligned and placed in a glottis under an unsupported condition.

Meanwhile, the prior clinical visual laryngoscope also has a product provided with a tracheal catheter guiding groove, but the guiding groove and the camera of the visual laryngoscope in the prior art are in a horizontal plane and are in a left-right relationship, and because the lens is positioned at the side of the guiding groove, when the glottis is exposed, the tracheal catheter is fed through the guiding groove, the tracheal catheter cannot be positioned at the center of the visual field, and the center of the visual field is usually right opposite to the glottis, therefore, the tracheal catheter fed through the guiding groove can deviate from the glottis and cannot be accurately fed into the trachea through the glottis. Moreover, the oral cavity placing end of the visual laryngoscope in the prior art is uneven and not a coherent plane, so that the oral cavity placing end is easily blocked by tissues during placing, and the placing process is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the visual pharyngoscope with the guide groove, which is more ergonomic, easy to operate, more accurate in guide and good in practicability.

In order to achieve the above object, the visual pharyngoscope with guide slot of the present invention comprises:

the visible pharyngoscope with the guide groove is mainly characterized by comprising a visible soft lens and a lens body;

the endoscope body comprises an L-shaped oral cavity embedding part, the oral cavity embedding part is provided with a tracheal catheter guide groove with a lateral groove, the center of the back curve side of the oral cavity embedding part is further provided with a soft endoscope channel matched with the shape and the structure of the visual soft endoscope, and the visual soft endoscope is inserted into the soft endoscope channel.

The visual pharyngoscope with the guide groove comprises a handle part, wherein the handle part is connected with the upper end of the oral cavity embedding part into a whole, the handle part is provided with a soft lens embedding cavity communicated with the soft lens channel, and the visual soft lens can penetrate through the soft lens embedding cavity to be inserted into the soft lens channel.

In the visible pharyngoscope with the guide groove, a partition plate is arranged at the joint of the handle part and the tracheal catheter guide groove to separate the soft lens imbedding cavity from the tracheal catheter guide groove.

In the above visual pharyngoscope with the guide groove, the oral cavity placing end at the lower end of the oral cavity placing part is a slope-shaped section, and the slope-shaped section of the oral cavity placing end opens towards the back curve side of the oral cavity placing part.

The visible pharyngoscope with the guide groove is characterized in that the edge of the oral cavity placing end is protruded like a lip.

The visual pharyngoscope with the guide groove comprises a display device, a connecting part, a hose part and a miniature camera;

the one end of hose portion is passed through connecting portion with display device is connected, the other end of hose portion with miniature camera head is connected, the one end that the hose portion was equipped with miniature camera head passes in proper order the chamber is put into to the soft mirror with the soft mirror passageway is arranged in the oral cavity of portion is put into to the oral cavity puts into the end.

The above-mentioned visual pharyngoscope with guide slot, wherein, the oral cavity portion of imbedding of L type is including integrated into one piece's first portion of imbedding and second portion of imbedding, the contained angle between first portion of imbedding and the second portion of imbedding is between 80 degrees to 100 degrees, wherein, contains the upper end of the oral cavity portion of imbedding does first portion of imbedding contains the lower extreme of the oral cavity portion of imbedding does the second portion of imbedding.

The visual pharyngoscope with the guide groove is characterized in that the total length of the laryngoscope body is 200 +/-10 mm;

the length of the handle part is 50-60 mm;

the total length of the oral cavity implanting part is 150 +/-10 mm;

the length of the second embedding part is less than 80 mm;

the outer diameters of the sections of the oral cavity implanting part and the handle part are rectangles with the width of 18 +/-0.5 mm and the height of 20 +/-0.5 mm, or the outer diameters of the sections of the oral cavity implanting part and the handle part are ellipses with the short axis of 18 +/-0.5 mm and the long axis of 20 +/-0.5 mm;

the edge of the inner cavity of the oral cavity embedding part is rectangular with the width of 14 +/-1 mm and the height of 16 +/-1 mm, or the edge of the inner cavity of the oral cavity embedding part is oval with the short axis of 14 +/-1 mm and the long axis of 16 +/-1 mm;

the groove distance of the tracheal catheter guide groove is 10 +/-1 mm.

The visual pharyngoscope with the guiding groove is characterized in that,

the diagonal center line of the slope-shaped tangent plane is formed by a connecting line between the center point of the opening of the slope-shaped tangent plane, which is positioned at the back curve side of the oral cavity implanting part, and the center point of the opening of the slope-shaped tangent plane, which is positioned at the curve side of the oral cavity implanting part;

the length of a first right-angle side in a right-angle triangular area which takes the diagonal center line as a hypotenuse and is formed by the oral cavity placing end of the oral cavity placing part is less than 16 mm, the length of a second right-angle side is less than 35 mm,

wherein the first right-angle side is formed by a straight line in the right-angle triangular area, which vertically extends from the central point of the dorsiflexion side of the oral cavity placing end to the side wall of the inner diameter of the bending side of the lens body, and the second right-angle side is formed by a side edge in the right-angle triangular area, which is positioned at the center of the bending side of the lens body;

when the visual soft lens is arranged in the soft lens channel, the distance between the central optical axis of the lens of the miniature camera and the edge of the oral cavity placing end opposite to the lens is larger than 15 mm.

The visual pharyngoscope with the guide groove is characterized in that the visual soft lens is detachably inserted into the soft lens channel.

The visual pharyngoscope with the guide slot has the beneficial effects that:

the structure of the visual pharyngoscope with the guide groove can better accord with the natural anatomical radian of a human body by setting the oral cavity embedding part in the laryngoscope body into an L shape, so that the radian of the laryngoscope body can be more accordant with the natural radian of an upper respiratory tract formed by the oral cavity and the throat, the lens body can be aligned to a glottis and clearly displayed without being particularly forcibly pulled after being embedded into the oral cavity, meanwhile, the axial line of the visual soft lens and the axial line of the tracheal catheter guide groove are positioned on the same vertical plane because the oral cavity embedding part is provided with the tracheal catheter guide groove with a side groove and the center of the back curve side of the oral cavity embedding part is provided with the soft lens channel matched with the shape structure of the visual soft lens, the axial line of the visual soft lens and the axial line of the tracheal catheter guide groove are vertically positioned on the same vertical plane, the lens of the visual soft lens and the tracheal catheter guide groove in the laryngoscope body are vertically and coaxially designed, and the central optical axial line of the visual soft lens field is overlapped with the axial line of the tracheal catheter guide groove in the longitudinal direction, the tracheal catheter placed in the tracheal catheter guiding groove can be accurately positioned in the center of the visual field, so that an operator can more conveniently and clearly see the relative position relation between the tracheal catheter and the human body, and the operation is more convenient. The visual pharyngoscope with the guide groove has the characteristics of convenience in operation, strong practicability and accurate guide, and simplifies and optimizes the operation.

Drawings

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Fig. 1 is a schematic view showing the overall structure of a visual pharyngoscope with a guide groove according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the structure of the body of a visual pharyngoscope with a guide groove according to an embodiment of the present invention.

Fig. 3 is a perspective view of the body of the visual pharyngoscope with guiding groove of the utility model.

FIG. 4 is a side view of the body of a visual pharyngoscope with a guide groove according to an embodiment of the present invention.

Fig. 5 is a top view of the body of a visual pharyngoscope with guiding slot according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a soft visual mirror in a visual pharyngoscope with a guide groove according to an embodiment of the present invention.

Reference numerals

1 visual soft lens

11 display device

12 connecting part

13 micro camera

14 hose part

2 mirror body

21 oral cavity implanting part

211 first insertion part

212 second insertion part

22 tracheal catheter guide groove

221 tracheal catheter guide groove inlet

222 tracheal catheter guide groove outlet

23 lip-like projections

24 soft lens channel

241 soft lens channel lens end

242 soft lens channel entrance

25 handle part

251 soft lens imbedding cavity

252 baffle plate

Detailed Description

In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the present invention will be further described with reference to the following detailed drawings. However, the present invention is not limited to the following embodiments.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1 to 6, the visual pharyngoscope with guide slot of this embodiment includes a visual soft lens 1 and a lens body 2;

the mirror body 2 includes that the oral cavity of L type puts into portion 21, the oral cavity is put into portion 21 and is equipped with side slotted endotracheal tube guiding groove 22, the back of the body curved side of portion 21 is put into in the oral cavity still be equipped with visual soft mirror 1 shape structure assorted soft mirror passageway 24, visual soft mirror 1 alternate in soft mirror passageway 24.

In this embodiment, the oral cavity insertion part 21 is formed in a double tube shape including the tracheal tube guide groove 22 on the flexion side and the soft lens channel 24 on the dorsiflexion side in a stacked manner as a whole, taking the maximum degree of fit with the actual anatomy into consideration. As shown in fig. 1, the right side of the scope 2 in fig. 1 is the flexing side of the oral cavity insertion portion 21, and the left side of the scope 2 in fig. 1 is the dorsiflexion side of the oral cavity insertion portion 21. Wherein, the slot at the side of the tracheal catheter guide groove 22 extends from the top end of the oral cavity insertion part 21 to the bottom end of the oral cavity insertion part 21.

In practice, the cross section of the guiding groove 22 of the endotracheal tube can be made into an elliptical guiding groove with an inner diameter of 14 ± 1 mm in the minor axis and 16 ± 1 mm in the major axis, the soft lens channel 24 can be made into a circular tube structure with an inner diameter of less than or equal to 5mm, and the guiding groove 22 of the endotracheal tube and the soft lens channel 24 are longitudinally overlapped (the size and the described shape are only a feasible embodiment, and the actual size can be designed according to the specific needs in the using process).

In this embodiment, the soft visual lens 1 is detachably inserted into the soft lens channel 24. The visual soft lens 1 is connected with the lens body 2 in a pluggable way. As shown in fig. 6, a position-limiting structure is disposed at the connecting portion 12 of the soft visual mirror 1, so that the soft visual mirror 1 can be well butted with the mirror body 2, and the butted state is as shown in fig. 1. Wherein, the shape and structure of the visual soft lens 1 and the lens body 2 are adapted with the same type.

The oral cavity embedding part 21 is designed into an L shape to conform to the natural anatomical radian of a human body and be more matched with the natural radian of an upper respiratory tract formed by the oral cavity and the throat, and the lens body 2 can be aligned to the glottis and can be clearly displayed without being particularly pulled by force after being embedded into the oral cavity. Meanwhile, the oral cavity placing part 21 is respectively provided with a tracheal catheter guide groove 22 with a side groove and a soft lens channel 24 which is positioned in the center of the dorsiflexion side of the oral cavity placing part 21 and is matched with the shape and structure of the visual soft lens 1, as shown in fig. 4, the structure design ensures that the axis of the visual soft lens 1 and the axis of the tracheal catheter guide groove 22 are positioned on the same vertical plane (namely, the tracheal catheter guide groove 22 is positioned on the flexion side of the lens body 2, and the soft lens channel 24 is arranged in the center of the dorsiflexion side of the lens body 2, namely, in the 6 o' clock direction of the flexion side), the lens of the visual soft lens 1 and the tracheal catheter guide groove 22 in the lens body 2 are in an up-down relationship at the oral cavity placing end of the oral cavity placing part through the tracheal catheter guide groove 22 and the soft lens channel 24 which are vertically and coaxially designed, and the central optical axis of the visual field of the visual soft lens 1 and the axis of the tracheal catheter guide groove 22 are overlapped in the longitudinal direction, the tracheal catheter inserted through the tracheal catheter guide groove 22 can be accurately positioned at the center of the visual field, so that an operator can more conveniently and clearly see the relative position relationship between the tracheal catheter and the human body, and the operation is more convenient.

In this embodiment, as shown in fig. 5, the scope body 2 further comprises a handle portion 25, the handle portion 25 is integrally connected with the upper end of the oral cavity insertion portion 21, the outer diameter of the handle portion has a size and shape matching the outer diameter of the upper end of the oral cavity insertion portion, and in this embodiment, the whole scope body 2 formed by the handle portion 25 and the oral cavity insertion portion 21 is L-shaped. And the handle part 25 is provided with a soft lens insertion cavity 251 communicated with the soft lens channel 24, and the visual soft lens 1 can penetrate through the soft lens insertion cavity 251 and be inserted into the soft lens channel 24. That is, the handle part 25 constitutes a handle and a soft lens insertion part, the soft lens insertion cavity 251 is connected with the soft lens channel insertion port 242, and the lens in the visible soft lens can sequentially pass through the soft lens insertion cavity 251, the soft lens channel insertion port 242 and the soft lens channel 24 to reach the soft lens channel lens end 241.

In this embodiment, the handle portion 25 is a column structure, and the integral lens body 2 structure formed by the handle portion 25 and the oral cavity insertion portion 21 is L-shaped (in this embodiment, the oral cavity insertion portion 21 and the handle portion 25 are an integral structure).

As shown in fig. 3 and 5, in this embodiment, a partition 252 is provided at the connection between the handle portion 25 and the endotracheal tube guiding groove 22 to partition the soft lens insertion cavity 251 from the endotracheal tube guiding groove 22. That is, the position where the bottom of the handle portion 25 is connected to the oral cavity introducing portion 21 is partially closed, and the soft lens introducing cavity 251 in the handle portion 25 communicates with the soft lens passage 24 but is blocked from the endotracheal tube guiding groove 22.

The insertion of the soft visual mirror 1 into the endotracheal tube guide groove 22 can be avoided by providing the partition 252 at the junction of the handle portion 25 and the endotracheal tube guide groove 22, and at the same time, in this embodiment, the partition 252 is formed in a slope structure that slopes downward in the direction from the flexed side to the dorsiflexed side, which makes it possible to insert the soft visual mirror 1 into the soft mirror passage 24 more easily.

As shown in fig. 1 to 3, in this embodiment, the opening width of the entrance 221 of the endotracheal tube guiding groove at the lateral opening of the endotracheal tube guiding groove 22 is larger than the opening width of the other positions of the lateral opening, so that the endotracheal tube can be inserted into the endotracheal tube guiding groove 22 from the entrance 221 of the endotracheal tube guiding groove more easily, and the endotracheal tube is prevented from slipping out of the endotracheal tube guiding groove 22 after being inserted into the endotracheal tube guiding groove 22.

Through the structural design, the visual soft lens 1 can be accurately and conveniently inserted into the soft lens channel 24, and the tracheal catheter can be conveniently inserted into the tracheal catheter guide groove 22 through the groove at the side of the oral cavity insertion part 21.

As shown in fig. 6, in this embodiment, the visual soft lens 1 includes a display device 11, a connection portion 12, a hose portion 14, and a micro-camera 13;

the one end of hose portion 14 is passed through connecting portion 12 with display device 11 is connected, the other end of hose portion 14 with miniature camera 13 is connected, the one end that hose portion 14 was equipped with miniature camera 13 passes in proper order the soft mirror is put into chamber 251 with soft mirror passageway 24 is arranged in the oral cavity of portion 21 is put into to the oral cavity and is put into the end. In this embodiment, the display device 11 may be constituted by a display. Wherein, the oral cavity placing end is positioned at the tail end of the lens body 2.

As shown in fig. 1 to fig. 3, in this embodiment, the mouth cavity placing end at the lower end of the mouth cavity placing portion 21 is a slope-shaped section, and an opening of the slope-shaped section of the mouth cavity placing end faces the back curved side of the mouth cavity placing portion 21, that is, the mouth cavity placing end is a slope-shaped section from the bottom to the top and from the proximal end to the distal end.

As shown in fig. 4, the lens end 241 of the soft lens channel is located at the bottom of the slope-shaped tangent plane, the lens direction of the visual soft lens 1 is longitudinally and coaxially overlapped with the lumen of the tracheal catheter guiding groove 22, the opposite side distance formed by the central optical axis of the lens and the embedded end plane of the oral cavity embedded part 21 is more than 15mm, compared with the corresponding distance of a common visual pharyngoscope which is less than 10mm, the distance is obviously increased, the slope-shaped structure can enable the lens body 2 to be more easily inserted into the glottis, and the soft lens channel 24 is located at the back curve side, so that a better visual field can be obtained.

In operation, the soft visual lens 1 is inserted into the soft lens channel 24 in the lens body 2, and the micro-camera 13 in the soft visual lens 1 is positioned at the lens end 241 of the soft lens channel 24 at the bottom. Then, put the oral cavity in the mirror body 2 and put the department 21 into the oral cavity, under the guide of the miniature lens 13, can show the glottis clearly on the display device 11 in the visual soft mirror 1, then insert the endotracheal tube along the guide groove, because the axial angle after the mirror axis of the lens and endotracheal tube go out of the guide groove 22 of endotracheal tube are unanimous, make the endotracheal tube just can be to the visual field centre of the lens of the miniature lens 13 in the guide groove outlet 222 of endotracheal tube, aim at the glottis, alright insert the tube into the trachea through the glottis easily.

In this embodiment, the edge of the mouth-entering end is lip-like 23, as shown in figures 1 and 2.

The structure design can lead the endoscope body 2 to be smoother when being placed in, and reduce the damage to the human body.

In this embodiment, the L-shaped oral cavity insertion portion 21 includes a first insertion portion 211 and a second insertion portion 212 that are integrally formed, and an included angle between the first insertion portion 211 and the second insertion portion 212 is 90 degrees (in specific implementation, only the included angle needs to be controlled between 80 degrees and 100 degrees, and a certain floating range is allowed), where the first insertion portion 211 is included at the upper end of the oral cavity insertion portion 21, and the second insertion portion 212 is included at the lower end of the oral cavity insertion portion 21.

In this embodiment, the overall length of the scope body 2 is 200 mm;

the handle portion 25 has a length of 50 mm;

the total length of the oral cavity implanting part 21 is 150 mm;

the length of the second imbedding part 212 is less than 80 mm;

the outer diameters of the cross sections of the oral cavity embedding part 21 and the handle part 25 are respectively in an oval shape with the short axis of 18 mm and the long axis of 20 mm;

the edge of the inner cavity of the oral cavity embedding part 21 is in an oval shape with a short axis of 14 +/-0.5 mm and a long axis of 16 +/-0.5 mm;

the groove pitch of the tracheal catheter guide groove 22 is 10 mm.

In other embodiments, the outer diameters of the cross sections of the oral cavity insertion portion 21 and the handle portion 25 may also be rectangles with a width of 18 mm and a height of 20 mm, and the edge of the inner cavity of the oral cavity insertion portion 21 is a rectangle with a width of 14 ± 1 mm and a height of 16 ± 1 mm.

In the specific implementation, the size design of the visual pharyngoscope with the guide groove allows a certain floating range, and the specific floating range is as follows:

the total length of the lens body 2 is 200 +/-10 millimeters;

the length of the handle part 25 is 50 mm-60 mm;

the total length of the oral cavity implanting part 21 is 150 +/-10 millimeters;

the length of the second imbedding part 212 is less than 80 mm;

the outer diameters of the cross sections of the oral cavity embedding part 21 and the handle part 25 are rectangles with the width of 18 +/-1 mm and the length of 20 +/-1 mm, or the outer diameters of the cross sections of the oral cavity embedding part 21 and the handle part 25 are ellipses with the short axis of 18 +/-1 mm and the long axis of 20 +/-1 mm, namely the wall thickness of the endoscope body 2 is 2 +/-1 mm;

the edge of the inner cavity of the oral cavity implanting part 21 is rectangular with the width of 14 +/-1 mm and the length of 16 +/-1 mm, or the edge of the inner cavity of the oral cavity implanting part 21 is elliptical with the short axis of 14 +/-1 mm and the long axis of 16 +/-1 mm;

the groove distance of the tracheal catheter guide groove 22 is 10 +/-1 mm.

In the embodiment, a connecting line between a central point of the opening of the slope-shaped tangent plane, which is positioned at the back bending side of the oral cavity placing part, and a central point of the opening of the slope-shaped tangent plane, which is positioned at the bending side of the oral cavity placing part, forms a diagonal central line of the opening of the slope-shaped tangent plane;

the length of a first right-angle side in a right-angle triangular area which takes the diagonal center line as a hypotenuse and is formed by the oral cavity placing end of the oral cavity placing part is less than 16 mm, the length of a second right-angle side is less than 35 mm,

wherein the first right-angle side is formed by a straight line in the right-angle triangular area, which vertically extends from the central point of the dorsiflexion side of the oral cavity placing end to the side wall of the inner diameter of the bending side of the lens body, and the second right-angle side is formed by a side edge in the right-angle triangular area, which is positioned at the center of the bending side of the lens body;

when the visual soft lens 1 is arranged in the soft lens channel 24, the distance between the central optical axis of the lens of the miniature camera 13 and the edge of the oral cavity placing end opposite to the lens is larger than 15mm, compared with the distance of the corresponding position of the existing visual pharyngoscope smaller than 10mm, the position of the visual soft lens channel 24 is higher, and the visual soft lens channel 24 is upwards communicated with the handle part 25.

The visual pharyngoscope with the guide groove in the embodiment can better fit with natural anatomical radian in structure, has accurate tracheal catheter guiding function, and can perform tracheal intubation greatly conveniently and accurately.

When the visible pharyngoscope with the guide groove is used, the structure of the endoscope body 2 is designed according to the natural anatomical radian, so that the radian of the endoscope body 2 can be more fit with the natural radian of an upper respiratory tract formed by the oral cavity and the throat, and the lens 2 can be aligned to the glottis and clearly displayed without being particularly pulled after the endoscope body is placed into the oral cavity; the lens of the soft visual mirror 1 is vertically and coaxially designed with the tracheal catheter guide groove 22, so that the lens of the soft visual mirror 1 is in an up-and-down relationship with the tracheal catheter guide groove 22 in the mirror body 2, the central optical axis of the visual field is overlapped with the longitudinal axis of the tracheal catheter guide groove 22, the tracheal catheter placed in the tracheal catheter guide groove 22 can be accurately positioned in the center of the visual field of the lens, the vertical distance between the lens positioned on the dorsiflexion side of the mirror body 2 and the side wall of the flexion side of the mirror body 2 is larger than 15mm, the height is higher than the distance between the lens and the side wall in all the prior visible pharyngoscope scopes, when the structure of the throat is displayed, a larger effective visual field can be obtained, and the operation is simplified and optimized; through the design of the slope-shaped plane and the lip-shaped edge of the oral cavity placing end at the lower end of the oral cavity placing part 21, the endoscope body 2 is not easy to be blocked by tissues after being placed in the oral cavity, and is smoother when being placed, and the damage caused is smaller.

The lens of the visual soft lens 1 can be easily arranged at the most effective observation angle and position, and the lens body 2 is L-shaped and is more fit with the natural anatomical radian of the oral cavity and the throat part, so that the lens end of the soft lens can be vertically positioned in the supraglottic area when being arranged in the oral cavity and sent to the throat part, and the lens is high and leans against the esophagus side relative to the visual field, and the lens body 2 is adjusted up and down, so that a larger effective visual field can be obtained; the tubular guide groove cavity of the visual pharyngoscope is longitudinally overlapped with the lens direction, and after the tracheal catheter is led out of the lens end through the guide groove, the catheter is fixed and is positioned in the central position of the visual field, so that the catheter can be easily and accurately sent into the glottis in the same central position of the visual field, and accurate guide is effectively realized.

This visual pharyngoscope of guide slot is led in area can help the clinic to carry out trachea cannula to make trachea cannula operation process become more convenient, more accurate, the damage that causes is littleer, for the convenience of this visual pharyngoscope of guide slot is led in area of the technical staff better understanding in this area, this visual pharyngoscope of guide slot is led in area is further explained in the following combination operation process:

the visual soft lens 1 is inserted into the soft lens channel 24 of the separate lens body 2 which is matched with the visual soft lens, and the endotracheal intubation can be performed by opening the display. The handle part 25 of the endoscope body 2 is held by a pen in one hand, the oral cavity placing end of the oral cavity placing part 21 in the visible laryngoscope with the guide groove is inserted through the oral cavity, under the guidance of video observation, the endoscope body 2 is placed in the center of the tongue body and slides into the throat part, and the edge structure of the oral cavity placing end is a lip-like plane, so that the endoscope can be smoother and has no damage in the placing process. Because the oral cavity imbedding part 21 is L-shaped, when the endoscope body 2 slides into the throat, 90 degrees are naturally formed, the angle is equivalent to the anatomical angle of a natural oral cavity and throat, at the moment, the direction of the lens end 241 of the soft lens channel is opposite to the sound door part of the throat in a straight line, the satisfactory glottic exposure visual field can be obtained by slightly tilting the endoscope body 2, the endoscope body 2 is held and fixed by the left hand, the tracheal catheter is inserted into the tracheal catheter guide groove 22 through the inlet of the tracheal catheter guide groove 22 by the right hand, the tracheal catheter is pushed forwards to the tracheal catheter guide groove outlet 22 along the tracheal catheter guide groove 22, at the moment, because the visual field of the lens of the miniature camera 13 positioned at the lens end 241 of the soft lens channel is coaxial with the tracheal catheter guide groove 22 in the longitudinal direction, the head of the tracheal catheter can be observed in the visual field to be positioned in the center of the visual field, the tracheal catheter is inserted with the head aligned with the glottis, the tracheal catheter is continuously sent forwards into the trachea, and the tracheal catheter is fixed at a proper depth, the tracheal catheter is fixed by the right hand, the left hand exits from the endoscope body 2 in the visual pharyngoscope with the guide groove, the tracheal catheter is separated to the side of the tracheal catheter guide groove 22 on the right side of the endoscope body 2, the depth of the tracheal catheter is confirmed again, and after the tracheal catheter is fixed, the tracheal intubation is finished.

In conclusion, the visual pharyngoscope with the guide groove can ensure that the endoscope body is placed more smoothly and has less damage through the slope-shaped lip sample placing plane; the lens body of the L shape can enable the lens to be more easily and exactly aligned with the glottis area; the lens is lifted to obtain a more satisfactory visual field; the guide groove is longitudinally overlapped with the lens, so that the guided tracheal catheter can be positioned in the center of the visual field and can be accurately guided.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.

Claims (10)

1. A visual pharyngoscope with guiding groove, characterized by, including visual soft lens and lens body;

the endoscope body comprises an L-shaped oral cavity embedding part, the oral cavity embedding part is provided with a tracheal catheter guide groove with a lateral groove, the center of the back curve side of the oral cavity embedding part is further provided with a soft endoscope channel matched with the shape and the structure of the visual soft endoscope, and the visual soft endoscope is inserted into the soft endoscope channel.

2. The visual pharyngoscope with guiding groove according to claim 1, wherein the laryngoscope body further comprises a handle part, the handle part is integrally connected with the upper end of the oral cavity imbedding part, the handle part is provided with a soft lens imbedding cavity communicated with the soft lens channel, and the visual soft lens can be inserted into the soft lens channel through the soft lens imbedding cavity.

3. A visual pharyngoscope with guide slot according to claim 2,

and a partition plate is arranged at the joint of the handle part and the tracheal catheter guide groove to partition the soft lens placing cavity from the tracheal catheter guide groove.

4. The visual pharyngoscope with guide slot according to claim 2, wherein the oral cavity placing end at the lower end of the oral cavity placing part is a slope-shaped section, and the slope-shaped section of the oral cavity placing end is opened towards the back curve side of the oral cavity placing part.

5. A visual pharyngoscope with guide slot according to claim 4 wherein the edge of said oral insertion end is lip-like convex.

6. The visual pharyngoscope with guide slot according to claim 4, wherein the visual soft lens comprises a display device, a connection part, a hose part and a micro camera;

the one end of hose portion is passed through connecting portion with display device is connected, the other end of hose portion with miniature camera head is connected, the one end that the hose portion was equipped with miniature camera head passes in proper order the chamber is put into to the soft mirror with the soft mirror passageway is arranged in the oral cavity of portion is put into to the oral cavity puts into the end.

7. The visual pharyngoscope according to claim 6, wherein the L-shaped oral cavity insert part comprises a first insert part and a second insert part which are integrally formed, and the included angle between the first insert part and the second insert part is between 80 degrees and 100 degrees, wherein the upper end including the oral cavity insert part is the first insert part, and the lower end including the oral cavity insert part is the second insert part.

8. A visual pharyngoscope with guide slot according to claim 7,

the total length of the lens body is 200 +/-10 millimeters;

the length of the handle part is 50-60 mm;

the total length of the oral cavity implanting part is 150 +/-10 mm;

the length of the second embedding part is less than 80 mm;

the outer diameters of the sections of the oral cavity implanting part and the handle part are respectively rectangular with the width of 18 +/-0.5 mm and the height of 20 +/-0.5 mm, or the outer diameters of the sections of the oral cavity implanting part and the handle part are respectively elliptical with the short axis of 18 +/-0.5 mm and the long axis of 20 +/-0.5 mm;

the edge of the inner cavity of the oral cavity embedding part is rectangular with the width of 14 +/-1 mm and the height of 16 +/-1 mm, or the edge of the inner cavity of the oral cavity embedding part is oval with the short axis of 14 +/-1 mm and the long axis of 16 +/-1 mm;

the groove distance of the tracheal catheter guide groove is 10 +/-1 mm.

9. A visual pharyngoscope with guide groove according to claim 8,

the diagonal center line of the opening of the slope-shaped section is formed by a connecting line between the center point of the opening of the slope-shaped section, which is positioned at the back curve side of the oral cavity placing part, and the center point of the opening of the slope-shaped section, which is positioned at the curve side of the oral cavity placing part;

the length of a first right-angle side in a right-angle triangular area which takes the diagonal center line as a hypotenuse and is formed by the oral cavity placing end of the oral cavity placing part is less than 16 mm, the length of a second right-angle side is less than 35 mm,

wherein the first right-angle side is formed by a straight line in the right-angle triangular area, which vertically extends from the central point of the dorsiflexion side of the oral cavity placing end to the side wall of the inner diameter of the bending side of the lens body, and the second right-angle side is formed by a side edge in the right-angle triangular area, which is positioned at the center of the bending side of the lens body;

when the visual soft lens is arranged in the soft lens channel, the distance between the central optical axis of the lens of the miniature camera and the edge of the oral cavity placing end opposite to the lens is larger than 15 mm.

10. A laryngoscope according to claim 1 wherein the soft visual lens is detachably insertable into the soft lens channel.

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