TW201404350A - Grip-to-drive laryngoscope with tilt-up head - Google Patents

Abstract

This invention relates to a grip-to-drive laryngoscope with tilt-up head, especially to a laryngoscope designed based on larynx structure. It can be pushed into a throat smoothly and drive the front end of the blade to tilt-up, which enables users to clearly see the larynx and thus, enhancing the chances of successful intubation and reducing the risk of dental injury. The laryngoscope consists of a direct-push handle, a driving board, a rebound rotation shaft, a transmission link and a blade, wherein the direct-push handle is equipped with the driving board and can press the rebound rotation shaft through the driving board and can be gripped on smoothly to push up and forward when the tube is raised up, and then drive the transmission link which will in turn drive the blade at the front end to tilt up, thus the larynx can be pushed to further raise up by the front blade, enabling the user to perform the intubation operation quickly and safely.

Description

Gripper-driven larynx laryngoscope

The invention relates to a laryngoscope for driving a squat by using a grip force, which pushes a driving plate through a natural grip force of a picking pipe by a straight push grip, and can interlock the rebound shaft to lift the blade at the front end upward. In turn, the throat is lifted upwards, which reduces the risk of injury to the teeth.

Airway management is a very important clinical technique, and among many methods, tracheal intubation is the safest and most effective way to treat the respiratory tract. For clinical anesthesia, cardiopulmonary resuscitation first aid, and intensive care unit, tracheal intubation is often required for patients, so the rigid laryngoscope is actively applied to endotracheal intubation, and the intubation technique is continuously refined to make the intubation The success rate and intubation complications continue to improve.

However, due to the lack of traditional intubation aid design, a certain ratio of intubation is difficult, and it is easy to cause related complications. For clinical patients, safety is greatly threatened. According to the American Society of Anesthesiology (ASA), More than half of the anesthesia medical disputes related to respiratory management are dental injuries, and the problem of dental injury caused by intubation is the most frequently accused and lost medical disputes by anesthesiologists; and medical proceedings for death due to failed intubation More than half of the cases were lost, and the amount of compensation was an average of $420,000 per patient. In Taiwan, the patient became a vegetative person due to the failure of anesthesia intubation, and also set a record of the highest compensation amount of 45 million yuan in Taiwan's medical history.

The conventional rigid laryngoscope is referred to the first figure due to its fixed blade structure. As shown, it is a schematic diagram of a conventional laryngoscope. The laryngoscope 1 is an L-shaped design with a curved blade 11 which is a fixed structure, so there is often a pick in the face of different patients. Difficult laryngoscopy, at this time, because the medical staff takes a lot of effort and hardly turns the hand when picking the tube, often unconsciously uses the teeth as a fulcrum, like a nail pull device, so it is easy Causes tooth damage.

In recent years, many improved laryngoscopes have been developed to improve the difficulty of intubation and tooth damage, but since most new laryngoscopes are incorporated into the endoscope (video laryngoscope) to indirectly view the throat rather than the traditional throat The basic structure of the mirror 1 is improved, so there are generally problems of being expensive and inconvenient to operate, and it is impossible to replace the conventional laryngoscope 1 as a first-line tool for clinical intubation, and it is not effective. At present, the use rate of traditional rigid laryngoscope for endotracheal intubation is still as high as 90%, so intubation difficulties and tooth damage can not be effectively improved, which not only threatens the safety of patients, but also causes many medical disputes.

The inventor is well aware of the traditional laryngoscope, it is often easy to turn the hand to use the teeth as a fulcrum to force the view of the throat, not only the teeth are easily destroyed, but also the success rate of the intubation is low, the effect is not good, and can not meet the needs, so it is the best After thinking hard about solving the problem, and relying on its own professional and years of work experience, and after several trials, corrections and improvements, the throat mirror of the invention is also born.

The invention relates to a laryngoscope for driving a squat by a grip force, in particular to a laryngoscope with a throat structure, which can be pushed into the throat and driven by the natural grip force of the pipe to lift the tip of the blade and lift the throat. For the user to clearly see the throat, there is Improve the success rate of the cannula. The utility model is composed of a straight push handle, a driving plate, a rebound shaft, a transmission link and a blade. The direct push handle is slightly curved, and a driving plate is attached, and the front end of the driving plate is pushed back. The rotating shaft and the rebounding shaft are connected with a transmission link, and the rebounding shaft can be rebounded by the driving plate, so that the rebounding shaft drives the transmission connecting rod, and then the connecting rods of the front end are connected by the driving link to generate an upward bending angle, so that The blade can lift the throat in the oral cavity, and enhance the illumination in the oral cavity by the LED light source provided at the front end, thereby increasing the speed, convenience and accuracy of the intubation operation, thereby improving the success rate of the cannula.

First, please refer to the second figure, which is an exploded perspective view of the present invention, which is mainly composed of a push-pull handle 21, a driving plate 22, a rebounding shaft 23, a transmission link 24 and a blade 25, and the direct pushing The handle 21 is slightly bent at the front end, and the bottom end of the push-type handle 21 is connected to a blade 25, so as to facilitate the grip and simultaneously insert the blade 25 into the inlet cavity, and a movable blade 250 is disposed at the front end of the blade 25, and The movable blade 250 is coupled to the blade 25 by the pin 240, so that it can swing freely, and the transmission link 24 is disposed in the blade 25, and the front end of the transmission link 24 is fixed and fixed by the fixed button 241 and the movable blade 250. The transmission link 24 can be traversed by the swing of the rebound shaft 23, and the transmission link 24 can be pushed forward, so that the movable blade 250 can be bent upward by an angle. The rear end of the transmission link 24 is pivotally connected to the through hole 231 of the rebound shaft 23 by the positioning button 242, and the rebound shaft 23 is disposed on the linkage shaft 251 protruding from the side of the blade 25, and the linkage shaft 251 is sleeved. There is a spring 252, and the spring 252 extends with a first spring strip 2520 and a second spring strip 2521, and the first spring strip 2520 is locked on the latching post 253 on the side of the blade 25, and the second spring strip 2521 is embedded.掣 回 on the side piece 230 of the rebound shaft 23 (as shown in the third figure), and finally drive The movable plate 22 is placed on the side of the straight push handle 21, and the drive plate 22 is slightly curved downward, and an arc groove 220 is formed on one side, and is smoothed on the other side of the arc groove 220, thereby effectively reducing The sharpness is sensed, and the bottom end of the arc groove 220 is appropriately fitted to the side piece 230 of the rebound shaft 23 to form a laryngoscope 2 (as shown in the fourth figure).

Regarding the linkage of the laryngoscope 2, please refer to the third figure and as shown in the fifth figure, the arc groove 220 of the driving plate 22 is abutted against the side piece 230 of the rebounding shaft 23, and the blade 25 is formed into a sickle arc shape. When the intubation operation is performed, by grasping the straight push handle 21 and the driving plate 22 by hand, and pushing the side piece 230 of the rebound rotating shaft 23 by the outer side of the arc groove 220, the blade 25 can be inserted into the oral cavity. While picking up the tube, the side piece 230 of the rebound shaft 23 is pressed against the force, and the second spring strip 2521 can be pushed in and out, and the first spring strip 2520 is used to abut the clip 253, so that the side piece 230 The oscillating shaft 251 can be oscillated as a fulcrum, so that the transmission link 24 coupled to the through hole 231 is traversed with the oscillating motion, so that the transmission link 24 pushes the pivoting movable blade 250 and is driven by the transmission link 24 The bending angle causes the transmission link 24 to exert an upward pushing force, so that the movable blade 250 connected thereto is bent upward by an angle (as shown in FIG. 6), and can be directly topped by the movable blade 250. Push the throat inside the mouth and lift the throat further so that the user can directly see the throat for insertion . Moreover, the use of the laryngoscope 2 is very smooth and fast, and only the holding laryngoscope 2 is placed in the throat along the oral structure, that is, after the driving plate 22 enters the oral cavity, it is naturally pushed by the necessary gripping force.掣, the movable blade 250 is moved up and down to avoid the hand rotation and force, resulting in medical disputes of tooth damage.

When using, please refer to the seventh figure. When performing the intubation work, the patient's mouth 3 should be opened to clearly see the pharynx 30, but the larynx 31 is deeper into the throat and slightly swallowed. The part 30 is vertical and needs to match the sickle-shaped laryngoscope 2 The structure of the throat portion 31 is made to open. Therefore, the user bends the front end of the push-pull grip 21 by holding the straight push grip 21 and the vane 25 is placed downward, and the front end of the push-pull grip 21 is bent so that the throat mirror 2 can easily push the inlet portion 3, And using the pressing force of the naturally-pushing push when the pipe is taken, the blade 25 is pressed to press the tongue 32, and the pharynx 30 can be clearly seen, and the driving plate 22 is pressed against the lateral side plate 230 to generate a swing, and can directly drive the transmission. The connecting rod 24 causes the movable blade 250 to bend at an angle, and is lifted upwards, so that the anatomical cartilage 33 can be retracted, so that the mouth portion 3 and the glottis 34 are in line, that is, the throat portion 31 can be clearly seen for the user to perform. Intubation work can greatly improve the success rate of intubation, especially when applying force, it can be applied with parallel movement and upward force, which can reduce the risk of tooth injury and reduce the chance of medical disputes.

In summary, the present invention cooperates with the rebound shaft to interlock the transmission link, so that the movable blade at the front end of the blade produces a bending angle, and can push the epiglottic cartilage in the throat so that the user can directly in the mouth. Seeing the throat for intubation work, using the parallel movement to apply upward force to avoid damage to the teeth, it is more advanced and practical than the traditional laryngoscope, and has not been seen in the publication, which is in line with the invention. Patent requirements, 提出 file patent application according to law.

Learner:

1‧‧‧ throat mirror

this invention:

2‧‧‧Laryngoscope

21‧‧‧Direct push handle

22‧‧‧Drive board

220‧‧‧ arc slot

23‧‧‧Rebound shaft

230‧‧‧ side film

231‧‧‧through hole

24‧‧‧Drive connecting rod

240‧‧‧ latch

241‧‧‧fixed button

242‧‧‧ positioning button

25‧‧‧ leaves

250‧‧‧active blades

251‧‧‧ linkage axis

252‧‧ ‧ spring

2520‧‧‧First spring strip

2521‧‧‧Second spring strip

253‧‧‧Cars

3‧‧‧ mouth

30‧‧ 咽 pharynx

31‧‧‧ throat

32‧‧‧ tongue

33‧‧‧ epiglottis

34‧‧‧Salmon

The first picture is a perspective view of a conventional laryngoscope.

The second drawing is a perspective exploded view of the present invention.

The third figure is a cross-sectional view of the present invention.

The fourth figure is a perspective view of the present invention.

The fifth figure is a schematic view of the action of the bending movable blade of the present invention.

The sixth figure is a schematic view of the movable blade lift of the present invention.

The seventh drawing is a schematic diagram of the use of the present invention.

21‧‧‧Direct push handle

22‧‧‧Drive board

220‧‧‧ arc slot

23‧‧‧Rebound shaft

230‧‧‧ side film

231‧‧‧through hole

24‧‧‧Drive connecting rod

240‧‧‧ latch

241‧‧‧fixed button

242‧‧‧ positioning button

25‧‧‧ leaves

250‧‧‧active blades

251‧‧‧ linkage axis

252‧‧ ‧ spring

2520‧‧‧First spring strip

2521‧‧‧Second spring strip

253‧‧‧Cars

Claims (6)

The utility model relates to a laryngoscope with a grip force driving squat head, which is mainly composed of a direct push type handle, a driving plate, a rebound rotating shaft, a transmission connecting rod and a blade. The straight push type handle is slightly curved at the front end, and then the straight push handle The bottom end is connected with a blade to form a sickle shape, a movable blade is arranged at the front end of the blade, and a transmission link is arranged in the blade, and a movable blade is pivotally connected to the front end of the transmission link, so that the movable blade can bend and swing. The rear end of the transmission link is pivotally connected to the through hole of the rebound rotating shaft, and the rebound rotating shaft is disposed on the linking shaft protruding from the side of the blade, and a spring is disposed on the linked sleeve, and the first spring of the spring The strip is stuck on the side of the blade on the side of the blade, and the second spring strip is embedded on the side piece of the rebounding shaft. The driving plate is placed on the side of the straight push handle, and the driving plate is slightly upward. Bending, and forming an arc groove on one side, so that the arc groove is properly located against the side piece of the rebound shaft. The throat mirror of the grip driving squat head according to claim 1, wherein the driving plate is slightly curved with the straight push handle image, and an arc groove is formed on one side. The throat mirror of the grip driving squat head according to claim 1, wherein the transmission link is coupled to the movable blade by a fixing button. The lancet-type laryngoscope according to claim 1, wherein the transmission link is pivotally connected to the through hole of the rebound shaft by a positioning button. The laryngoscope according to claim 1, wherein the movable blade is pivotally connected to the blade by a pin, and has a length of 2 to 4 cm. The throat mirror of the gripping force driving squat head according to the first aspect of the patent application, wherein the upward movement of the movable blade is a pressing force which is naturally pushed by the picking pipe, so that the driving plate compresses the side plate to generate a swing. , and can directly drive the transmission link to make the moving blade produce a bending angle.