CN2158237Y

CN2158237Y - Improved laryngoscope

Info

Publication number: CN2158237Y
Application number: CN 93216181
Authority: CN
Inventors: 韩振兴; 滑丙志
Original assignee: Henan Provincial Peoples Hospital
Current assignee: Henan Provincial Peoples Hospital
Priority date: 1993-06-19
Filing date: 1993-06-19
Publication date: 1994-03-09
Anticipated expiration: 2003-06-19

Abstract

The utility model relates to a medical appliance for examining throats, which mainly improves and designs the head part of the lenses of a curved type Machintosh laryngoscope, namely that rake angles of 20 DEG to 40 DEG are respectively arranged above the inner ends of the head parts of the lenses in big size, medium size and small size, which makes the head parts of the lenses in big size, medium size and small size can be correspondingly raised 8 to 16mm, 6 to 12mm and 4.5 to 9mm for causing glottises to be easy to reveal. The head parts of the improved lenses can be straight and can be curved. The lenses (observing lenses) of the improved curved type Machintosh laryngoscope can be used for conventional general anesthesia and rescuing type endotracheal intubation and can be used for users who have obesity, short necks, incomplete head hypsokinesis, long or short epiglottis, small lower jaws and evagination incisors.

Description

Improved laryngoscope

This utility model relates to medical apparatus and instruments, especially is a kind of apparatus of checking throat.

Endotracheal intubation need appear glottis with anesthetic laryngopharyngoscope, Maxwell commonly used is big both at home and abroad at present, in, small size curved anesthetic laryngopharyngoscope is spied on sheet and is appeared glottis and carry out endotracheal intubation, higher or the difficult layback of head as the glottis position, then glottis is difficult for appearing or appears unclear, measuring mouth, in 101 examples at larynx and mouthful larynx wire clamp angle thereof, spying on sheet with the curved anesthetic laryngopharyngoscope of Maxwell medium size appears glottis and carries out endotracheal intubation, there is 18.81% case to appear unclear or is difficult for appearing, wherein in 51 examples of head layback tie lines than horizontal position growth≤2cm, there is 31.37% case glottis to be difficult for appearing or appears unclear, only account for 17.65% and glottis appears rate entirely; In 17 examples of head layback mouthful, larynx angle≤70 °, also there is 29.41% case glottis position higher, cause the oral cavity big to the flexibility of glottis.The sheet distal tip of spying on the curved anesthetic laryngopharyngoscope in Maxwell can not arrive at epiglottis and root of the tongue junction, thereby glottis is difficult for appearing.

This utility model purpose is to provide a kind of modified model Maxwell curved laryngopharyngeal mirror, makes the head of eyeglass can arrive at the junction of the epiglottis and the root of the tongue, appears, also is beneficial to endotracheal intubation to reach glottis.

Fig. 1 is the eyeglass master TV structure figure of the curved laryngopharyngeal mirror in existing Maxwell,

Fig. 2 is rectilinear main TV structure sketch for the eyeglass head of the curved laryngopharyngeal mirror in modified model Maxwell,

Fig. 3 is the main TV structure sketch of arc (curve) for the eyeglass head of the curved laryngopharyngeal mirror in modified model Maxwell.

In the diagram zero, parts sequence number and position explanation thereof:

1, the coupling part of eyeglass and mirror handle, 2, curved eyeglass, 3, be provided with interior lamp line in the metal tube, 4, special illuminating lamp, the horizontal integration face of X face--eyeglass and mirror handle, Y face--the vertical plane that eyeglass is right back, the X face is vertical with the Y face, the eyeglass length of the curved laryngopharyngeal mirror in A--Maxwell, original (having) length of L--eyeglass head, L ₁--improve back eyeglass head length, the distance of B--eyeglass head length L outer end and X face (under the X face), B ₁--eyeglass head L ₁The distance of outer end and X face (on the top of X face), inclination angle upwards, the inner place of Q angle--eyeglass head L.

When using the curved large, medium and small pharyngoscope lens in Maxwell, the patient's that has glottis is appeared unclear. So, just the relevant parameters of eyeglass is measured: the outer end of large, medium and small eyeglass head L, be lower than respectively horizontal X face 5,6,7mm sees Table 1(and improves front parameter):

A (mm)	L (mm)	B (mm)	Remarks
				150	23	-5±0.5	Large size
125	18	-6±0.5	Medium size
				100	13	-7±0.5	Small size

This utility model upwards is provided with an inclination angle Q, corresponding L at the inner place of eyeglass head L ₁Increase than L, at L ₁The outer end, to corresponding having raised of eyeglass head of large, medium and small model: 8-16mm, 6-12mm, 4.5-9mm, all parameters after the improvement see Table 2:

A(mm)	L(mm)	B(mm)	Q°	Remarks
					150	＞23	＋3～11	20－40	Large size
125	＞18	＋1～7	20－40	Medium size
					100	＞13	-0.5～+4	20－40	Small size

The curved laryngopharyngeal mirror in this modified model Maxwell, mainly partly constitute by eyeglass, the shank of handing mirror and eyeglass, the coupling part of shank, lighting, the horizontal integration face of eyeglass and mirror handle is the X face, the vertical plane that eyeglass is right back is the Y face, the X face is vertical with the Y face, large, medium and small eyeglass length be A(A big=150mm, among the A=125mm, A is little=100mm), the eyeglass head length is L, the outer end of L and X identity distance is characterized in that from being B: the place upwards is provided with an inclination angle Q in the inner of L, makes the corresponding increase length of eyeglass head and is L ₁Be 20～40 °, corresponding L for large, medium and small number set inclination angle Q ₁The outer end and the distance of X face be B ₁, the B of large, medium and small eyeglass ₁Numerical value (mm) is respectively+and 3～11 ,+1～7 ,-0.5～+ 4; Guaranteeing Q angle, B ₁And under the constant situation of numerical value of A, eyeglass head L ₁Can be straight (line), also can make L ₁The outer end camber that curves inwardly, arc L ₁The radius of curvature of section is 30～40mm, makes the eyeglass head outer end of Maxwell bending laryngopharyngeal mirror can arrive at epiglottis and root of the tongue junction like this.

The inner place of the head of curved laryngopharyngeal mirror eyeglass upwards is provided with inclination angle Q(20～40 ° in the Maxwell) and eyeglass head outer end raise certain-length (the eyeglass head is straight line or curve) afterwards, through inner clinical practice one year over, it is good that cognition appears glottis, with regard to mouth, larynx, tie lines and mouth thereof, the 40 routine patients that larynx wire clamp angular measurement is fixed, with the curved Maxwell laryngopharyngeal mirror medium size after improving, eyeglass appears glottis and carries out endotracheal intubation, find that glottis is easy to appear, contrast before and after improving: promptly head layback tie lines flat crouch increase≤can make glottis appear rate raising 38.35% and 15.97% entirely when 2cm and a head layback mouthful larynx wire clamp angle≤70 °, make glottis appear unclear rate decline 19.37% and 19.89%.Eyeglass (the spying on sheet) decapacitation of the curved laryngopharyngeal mirror in modified model Maxwell be used for generally " general anesthesia " and rescue property endotracheal intubation outside, to fat, neck is short, the head layback is poor, epiglottis long or weak point and micromandible, front tooth evagination person all can use.

Claims

1, the curved laryngopharyngeal mirror in a kind of modified model Maxwell, mainly partly constitute by eyeglass, the shank of handing mirror and eyeglass, the coupling part of shank, lighting, the horizontal integration face of eyeglass and mirror handle is the X face, the vertical plane that eyeglass is right back is the Y face, the X face is vertical with the Y face, large, medium and small eyeglass length (mm) is that (A greatly=150 for A, among the A=125, A is little=and 100), the eyeglass head length is L, the distance of the outer end of L and X face is B, it is characterized in that: the place upwards is provided with an inclination angle Q in the inner of L, makes the corresponding increase length of eyeglass head and is L ₁

2,, it is characterized in that being 20-40 °, corresponding L for large, medium and small number set inclination angle Q according to the described laryngopharyngeal mirror of claim 1 ₁The outer end and the distance of X face be B ₁, the B of large, medium and small eyeglass ₁Numerical value (mm) is respectively+and 3～11 ,+1～7 ,-0.5～+ 4.

3, according to claim 1,2 described laryngopharyngeal mirrors, it is characterized in that: guaranteeing Q angle, B ₁And under the constant situation of the numerical value of A, eyeglass head L ₁Can be collinearly, also can make L ₁The outer end curve inwardly or arc arc L ₁The radius of curvature of section is 30～40mm.