CN118000862B

CN118000862B - Cricothyroid membrane puncture medicine injection equipment

Info

Publication number: CN118000862B
Application number: CN202410418439.XA
Authority: CN
Inventors: 周一; 杨旭东
Original assignee: Peking University School of Stomatology
Current assignee: Peking University School of Stomatology
Priority date: 2024-04-09
Filing date: 2024-04-09
Publication date: 2024-06-21
Anticipated expiration: 2044-04-09
Also published as: CN118000862A

Abstract

The invention discloses a cricothyroid membrane puncture medicine injection device, and belongs to the technical field of medical appliances. The utility model provides a cyclic mail membrane puncture medicine injection equipment includes the syringe needle, the inside upside fixed mounting of syringe needle has the mount, the inside downside of syringe needle is equipped with the adjustable shelf, adjustable shelf outside one side is equipped with blocks the mechanism, block the mechanism and block the syringe needle, block the mechanism and include the pin, the one end fixed mounting that the adjustable shelf middle part was kept away from to the pin has the block piece, the block piece is the arc setting, the inside medicine storage chamber of having offered of block the cover of syringe needle upside fixed mounting, the weeping mouth has been offered to medicine storage chamber downside, weeping mouth and the inside intercommunication of syringe needle, the size that blocks the cover is greater than the size of syringe needle. According to the invention, the blocking mechanism can move under the action of gravity after the needle head is inserted into the trachea of a patient, and the blocking rod and the blocking block can block the needle point part after the needle head stretches out, so that the trachea is prevented from being punctured again due to excessive needle point puncture.

Description

Cricothyroid membrane puncture medicine injection equipment

Technical Field

The invention relates to the technical field of medical equipment, in particular to a cricothyroid membrane puncture medicine injection device.

Background

At present, for the patients with predictable difficult airways clinically, the local anesthetic is required to be injected by cricothyroid puncture under conscious or mild sedation so as to achieve the effect of anesthesia on the tracheal mucosal surface. There are generally 2 ways to administer the drug: the 1 st mode is to use a 2ml injector filled with 2ml local anesthetic to perform cricothyroid membrane puncture, and the air bubble in the back suction needle tube confirms that the needle head is in the trachea, and then to directly perform injection; the 2 nd mode is to use a clinically common 24 # anti-reflux intravenous puncture trocar to perform cricothyroid membrane puncture, pull out a needle core after having falling feel, connect a 2ml syringe with 2ml local anesthetic at the tail of the needle, and suck back air bubbles to confirm that the needle head injects the local anesthetic in the trachea.

The first mode has the advantages that if no air is pumped back, the needle is convenient to withdraw directly, the angle direction and the depth of the needle inlet are adjusted until air bubbles are pumped back to confirm that the air bubbles are in the air pipe, then the medicine injection is directly carried out, the second mode has the advantages that the trocar is reserved in the air pipe and is a hose, the needle tail can be fixed during the medicine injection, and a patient is choked and cough without worrying about damage to the air pipe wall and needle head displacement, so that the medicine injection fails.

In practice, the first mode confirms that the needle is injected after being in the trachea, and the needle can be displaced to damage the tracheal wall or go deep outside the trachea to cause injection failure. Second, if withdrawal is not found inside the trachea, the needle needs to be completely withdrawn and replaced into the cored intravenous trocar. The two modes are not only inconvenient for drug injection, but also cause secondary injury to patients, and are inconvenient to use.

Disclosure of Invention

Aiming at the problems that the local anesthetic injection by the cricothyroid membrane puncture is easy to fail in injection and the needle head is excessively inserted so as to be inconvenient to control in the prior art, the invention aims to provide the cricothyroid membrane puncture injection equipment.

In order to solve the problems, the invention adopts the following technical scheme.

The cricothyroid membrane puncture medicine injection device comprises a needle, wherein a fixing frame is fixedly arranged on the upper side of the inside of the needle, a movable frame is arranged on the lower side of the inside of the needle, a blocking mechanism is arranged on one side of the outer side of the movable frame, and the blocking mechanism blocks the needle; the blocking mechanism comprises a blocking rod, one end of the blocking rod, which is far away from the middle part of the movable frame, is fixedly provided with a blocking block, and the blocking block is arranged in an arc shape; the needle is characterized in that a blocking sleeve is fixedly arranged on the upper side of the needle, a medicine storage cavity is formed in the blocking sleeve, a liquid leakage port is formed in the lower side of the medicine storage cavity, the liquid leakage port is communicated with the inside of the needle, and the size of the blocking sleeve is larger than that of the needle.

Optionally, the blocking mechanism further comprises an elastic strip fixedly connected with the stop lever, the position where the elastic strip is connected with the stop lever is located at one end of the stop lever, which is close to the middle of the movable frame, the outer wall of the movable frame is provided with a movable groove corresponding to the stop lever, the stop lever is slidably connected with the movable groove, and the position of the blocking block corresponds to the position of the needle point.

Optionally, dwang in movable frame upper end middle part fixed mounting has, the fixed frame inner wall has seted up the rotary groove with the position that the dwang corresponds, first perpendicular groove, second perpendicular groove and screw thread groove have been seted up to the rotary groove inner wall, the screw thread groove is located first perpendicular groove and second perpendicular groove upside, and screw thread groove both ends respectively with the upper end intercommunication of first perpendicular groove and second perpendicular groove, the length of first perpendicular groove is less than the length of second perpendicular groove, the rotary rod outer wall has the guide block with the position fixed mounting that first perpendicular groove corresponds, the guide block outer wall can with first perpendicular groove, screw thread groove and second perpendicular groove sliding contact.

Optionally, the guide block lower extreme slidable mounting has the stopper, the one side lower extreme that the stopper is close to the screw groove is the slope form structure.

Optionally, the dwang middle part runs through and is equipped with the acting as go-between, act as go-between lower extreme and pin fixed connection.

Optionally, the air inlet has been seted up to blocking the cover upper end, the air inlet downside is equipped with the closing plate, act as go-between upper end and closing plate lower extreme fixed connection, and closing plate upper end pass through reset spring and block a cover inner wall elastic connection, the closing plate can seal the air inlet.

Optionally, stop the inside pulling mechanism that is equipped with of cover, pulling mechanism includes the movable plate, the movable plate cover is established in the outside of acting as go-between, the movable groove has been seted up to the movable plate inside, the inside slidable mounting of movable groove has the movable rod, the one end fixed mounting who is close to acting as go-between of movable rod has the sloping block, the sloping block extrudees the outer wall of acting as go-between.

Optionally, movable plate lower extreme slidable mounting has the fixture block, fixture block lower extreme fixed mounting has cursory, the draw-in groove has been seted up to the position that movable rod lower extreme corresponds with the fixture block, fixture block and draw-in groove joint cooperation, the slot has been seted up to the position that the medicine storage intracavity wall corresponds with the movable rod tip, movable rod and slot grafting cooperation, the movable rod middle part is "U" type structure, the movable rod middle part passes through second tension spring and movable plate elastic connection.

Optionally, a plurality of first tension springs are fixedly arranged at the upper end of the moving plate, and the upper ends of the first tension springs are fixedly connected with the inner wall of the medicine storage cavity.

Compared with the prior art, the technical scheme provided by the invention has at least the following beneficial effects:

In the scheme, the blocking mechanism can move under the action of gravity after the needle head is inserted into the trachea of a patient, and the blocking rod and the blocking block can block the needle point after extending out, so that the needle point is prevented from puncturing the trachea again due to excessive needle point puncture, and the needle point is located outside the trachea.

Can automatic pulling closing plate remove after the pin removes through setting up acting as go-between to make the air inlet open, outside air can enter into the medicine storage intracavity portion this moment, and medicine in the medicine storage chamber then can flow into inside the syringe needle automatically under the action of gravity, and flow into patient's trachea through the syringe needle, simple and convenient during the use, the staff only need prick inside the intake pipe with the syringe needle can accomplish the medicine of annotating automatically.

Can stimulate the pin through the pulling mechanism who sets up after the injection is accomplished, make it and block the piece and remove to initial position, avoid taking out the syringe needle because blocking block and movable rack block, and extrude patient's department of inserting needle through movable rack and blocking block to lead to the syringe needle to be difficult to be pulled out and cause the secondary injury to the patient.

Can break away from with the draw-in groove after the medicine flows out the medicine storage intracavity portion completely through setting up cursory cooperation fixture block to cooperation second tension spring makes the movable rod break away from with the slot automatically, and the oblique piece of being convenient for is with the clamp tightly of acting as go-between, and automatic pulling is acted as go-between and is removed under first tension spring.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the invention.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the needle and the blocking sleeve according to the present invention;

FIG. 3 is a schematic view of a portion of a turret according to the present invention;

FIG. 4 is an enlarged schematic view of the structure shown in FIG. 3A;

FIG. 5 is a schematic view of the structure of the first vertical groove, the second vertical groove and the thread groove of the present invention;

FIG. 6 is a schematic view of a guide block and a stopper portion of the present invention;

FIG. 7 is a schematic view of a portion of the structure of a movable plate and a drug storage chamber of the present invention;

FIG. 8 is a schematic view of a portion of a seal plate and a drug storage chamber according to the present invention;

Fig. 9 is a schematic view of a portion of the structure of a movable rod and a movable plate according to the present invention.

[ Reference numerals ]

1. A needle; 11. a fixing frame; 111. a rotating groove; 112. a first vertical groove; 113. a second vertical groove; 114. a thread groove; 12. a movable frame; 121. a movable groove; 122. a rotating lever; 123. a guide block; 124. a limiting block; 125. a pull wire;

2. a barrier sleeve; 21. a drug storage cavity; 22. a sealing plate; 23. a return spring; 24. a slot; 25. a first tension spring; 26. an air inlet; 27. a liquid leakage port;

3. A blocking mechanism; 31. a stop lever; 32. a blocking piece; 33. an elastic strip;

4. a pulling mechanism; 41. a moving plate; 42. a moving groove; 43. a moving rod; 44. a sloping block; 45. a clamping block; 46. a float; 47. a clamping groove; 48. and a second tension spring.

Specific structures and devices are labeled in the drawings to enable clear implementation of embodiments of the invention, but this is merely illustrative and is not intended to limit the invention to the specific structures, devices and environments that may be modified or adapted by those of ordinary skill in the art, based on the specific needs.

Detailed Description

The following describes a specific embodiment of a cricothyroid membrane puncturing drug injection device according to the present invention in detail. While the invention has been described herein in terms of the preferred and preferred embodiments, the following embodiments are intended to be more illustrative, and other alternatives will be apparent to those skilled in the art; and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the invention specifically.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.

It is to be understood that the meaning of "on … …", "on … …" and "over … …" in this disclosure should be read in the broadest sense so that "on … …" means not only "directly on" but also "on" something with intervening features or layers therebetween, and "on … …" or "over … …" means not only "on" or "over" something, but also may include its meaning "on" or "over" something without intervening features or layers therebetween.

Furthermore, spatially relative terms such as "under …," "under …," "lower," "above …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein may similarly be interpreted accordingly.

As shown in fig. 1 to 9, an embodiment of the present invention provides a cricothyroid membrane puncture drug injection device, which includes a needle 1, a fixed frame 11 is fixedly installed on the upper side inside the needle 1, a movable frame 12 is provided on the lower side inside the needle 1, a blocking mechanism 3 is provided on one side outside the movable frame 12, and the blocking mechanism 3 blocks the needle 1.

The blocking mechanism 3 comprises a blocking rod 31, one end of the blocking rod 31 far away from the middle part of the movable frame 12 is fixedly provided with a blocking block 32, and the blocking block 32 is in an arc-shaped arrangement.

The needle head 1 upside fixed mounting has stops cover 2, stops that the inside medicine storage chamber 21 of having seted up of cover 2, and the weeping mouth 27 has been seted up to medicine storage chamber 21 downside, and weeping mouth 27 communicates with needle head 1 inside, stops that the size of cover 2 is greater than the size of needle head 1.

The blocking mechanism 3 further comprises an elastic strip 33 fixedly connected with the blocking rod 31, the position, where the elastic strip 33 is connected with the blocking rod 31, is located at one end, close to the middle of the movable frame 12, of the blocking rod 31, a movable groove 121 is formed in the position, corresponding to the blocking rod 31, of the outer wall of the movable frame 12, the blocking rod 31 is slidably connected with the movable groove 121, and the position of the blocking block 32 corresponds to the position of the needle point.

The middle part of the upper end of the movable frame 12 is fixedly provided with a rotating rod 122, the inner wall of the fixed frame 11 is provided with a rotating groove 111 at the position corresponding to the rotating rod 122, the inner wall of the rotating groove 111 is provided with a first vertical groove 112, a second vertical groove 113 and a thread groove 114, the thread groove 114 is positioned on the upper sides of the first vertical groove 112 and the second vertical groove 113, two ends of the thread groove 114 are respectively communicated with the upper ends of the first vertical groove 112 and the second vertical groove 113, the length of the first vertical groove 112 is smaller than that of the second vertical groove 113, the outer wall of the rotating rod 122 is fixedly provided with a guide block 123 at the position corresponding to the first vertical groove 112, and the outer wall of the guide block 123 can be in sliding contact with the first vertical groove 112, the thread groove 114 and the second vertical groove 113.

The lower end of the guide block 123 is slidably provided with a limiting block 124, and the lower end of one side of the limiting block 124, which is close to the thread groove 114, is in an inclined structure.

Through adopting above-mentioned technical scheme, after the staff inserts syringe needle 1 into patient's trachea, after syringe needle 1 intubated skin, thereby can receive earlier to block and move relative syringe needle 1 in the lower extreme one side of movable frame 12 under the barrier of skin, when the needle tip is located skin inside completely, movable frame 12 can be because the inside of syringe needle 1 is located to relative syringe needle 1 motion, and can make dwang 122 remove relative syringe needle 1 and mount 11 when movable frame 12 moves relative syringe needle 1, can drive the guide block 123 on the dwang 122 when dwang 122 removes, can move along first vertical groove 112 after the guide block 123 removes, can enter into the screw thread groove 114 after removing to follow the direction of screw thread groove 114, when movable frame 12 is located the top, guide block 123 is located the intercommunication department of screw thread groove 114 and second vertical groove 113, stopper 124 can descend under the effect of gravity this moment, and be located the inside of second vertical groove 113 after removing, make guide block 123 can not enter into screw thread groove 114 any more.

When the needle 1 is inserted into the trachea, the movable frame 12 is not blocked by meat any more, at this moment, the movable frame 12 and the rotating rod 122 can descend under the action of gravity, after the movable frame 12 descends, the stop rod 31 and the blocking block 32 at the outer side of the movable frame can move, when the movable frame 12 moves to the lowest end, the blocking block 32 is not blocked by the inner wall of the needle 1 any more, at this moment, under the action of the elastic strip 33, the stop rod 31 can drive the blocking block 32 to move along the direction of the movable groove 121, and after the blocking block 32 moves, the blocking block can block the end part of the needle 1, so that the end part cannot be positioned in the trachea due to the fact that the needle 1 is inserted too much to pass through the trachea again is avoided.

As shown in fig. 2, 4,5 and 8, a pull wire 125 is disposed in the middle of the rotating rod 122 in a penetrating manner, and the lower end of the pull wire 125 is fixedly connected with the stop lever 31.

The air inlet 26 has been seted up to blocking cover 2 upper end, and air inlet 26 downside is equipped with closing plate 22, and stay wire 125 upper end and closing plate 22 lower extreme fixed connection, and closing plate 22 upper end passes through reset spring 23 and blocks cover 2 inner wall elastic connection, and closing plate 22 can seal air inlet 26.

Through adopting above-mentioned technical scheme, after movable frame 12 and dwang 122 descend, can stimulate stay 125 when pin 31 takes place to remove, can pull closing plate 22 after the stay 125 receives the pulling force for closing plate 22 descends, can make air inlet 26 open after closing plate 22 descends, and air inlet 26 opens outside air and can enter into medicine storage cavity 21, and at this moment, medicine inside medicine storage cavity 21 can flow into inside syringe needle 1 under the action of gravity to in passing syringe needle 1 and flowing to the trachea.

The application can automatically open the air inlet 26 by arranging the sealing plate 22 after being pulled by the pull wire 125, thereby facilitating the medicament in the medicament storage cavity 21 to flow into the needle head 1 and completing injection.

As shown in fig. 7 to 9, the blocking sleeve 2 is internally provided with a pulling mechanism 4, the pulling mechanism 4 comprises a moving plate 41, the moving plate 41 is sleeved outside the pull wire 125, a moving groove 42 is formed in the moving plate 41, a moving rod 43 is slidably mounted in the moving groove 42, one end, close to the pull wire 125, of the moving rod 43 is fixedly provided with an inclined block 44, and the inclined block 44 extrudes the outer wall of the pull wire 125.

The lower extreme slidable mounting of movable plate 41 has fixture block 45, and fixture block 45 lower extreme fixed mounting has cursory 46, and the draw-in groove 47 has been seted up to the position that movable rod 43 lower extreme corresponds with fixture block 45, and fixture block 45 and draw-in groove 47 joint cooperation, slot 24 has been seted up to the position that the inner wall of medicine storage cavity 21 corresponds with movable rod 43 tip, and movable rod 43 and slot 24 peg graft the cooperation, and the movable rod 43 middle part is "U" type structure, and the movable rod 43 middle part passes through second tension spring 48 and movable plate 41 elastic connection.

The upper end of the moving plate 41 is fixedly provided with a plurality of first tension springs 25, and the upper ends of the first tension springs 25 are fixedly connected with the inner wall of the medicine storage cavity 21.

Through adopting above-mentioned technical scheme, after the medicament in the medicine storage chamber 21 gets into patient's trachea gradually, cursory 46 can lose buoyancy, thereby descend under the action of gravity, can drive fixture block 45 and descend this moment, fixture block 45 descends the back and can break away from draw-in groove 47, afterwards, can move under the effect of second tension spring 48 carriage release lever 43, can drive two sloping blocks 44 of its tip after the carriage release lever 43 moves, two sloping blocks 44 remove the back and can be held in the both sides of pull wire 125, thereby press from both sides pull wire 125 tightly, and, carriage release lever 43 can break away from with slot 24 after moving its tip, at this moment, carriage release lever 41 can rise under the effect of first tension spring 25, can drive carriage release lever 43 after the carriage release lever 41 rises, can pull wire 125, thereby utilize the pulling wire 125 to draw wire 31 to move, make in the pin 31 withdraw to the movable groove 121, can drive the stop piece 32 after the pin 31 and remove, make stop piece 32 to needle 1 inside, afterwards, the staff withdraws this equipment from patient again.

The movable plate 41 is matched with the second spring and the inclined block 44, so that the stop rod 31 and the blocking block 32 can be automatically pulled back to the original positions after the medicament flows out, the movable frame 12 is retracted into the needle head 1, and the situation that the needle head 1 is difficult to be pulled out to cause secondary injury to a patient due to the blocking of the blocking block 32 and the movable frame 12 when the needle head 1 is taken out and the needle insertion position of the patient is extruded through the movable frame 12 and the blocking block 32 is avoided.

The working process of the cricothyroid membrane puncture medicine injection device provided by the invention is as follows:

When the device is used, in the process that a worker inserts the needle 1 into the trachea of a patient, after the needle 1 is inserted into the skin, one side of the lower end of the movable frame 12 is blocked under the blocking of the skin so as to move relative to the needle 1, when the needle tip is completely positioned in the skin, the movable frame 12 moves relative to the needle 1 so as to be positioned in the needle 1, the rotating rod 122 can move relative to the needle 1 and the fixed frame 11 when the movable frame 12 moves relative to the needle 1, after the needle 1 is inserted into the trachea, the movable frame 12 and the rotating rod 122 can descend under the action of gravity, after the movable frame 12 descends, the blocking rod 31 and the blocking block 32 on the outer side can move, when the movable frame 12 moves to the lowest end, the blocking block 32 is not blocked by the inner wall of the needle 1, the elastic strip 33 can squeeze the stop rod 31 to enable the stop block 32 to move, when the stop block 32 moves and then can stop the needle 1 at the end part of the needle 1, then the sealing plate 22 can pull the sealing plate 22 under the action of the pull wire 125 to open the air inlet 26, so that the medicament can flow into the needle 1, after the medicament completely flows out, the clamping block 45 can be separated from the clamping groove 47, at the moment, the moving rod 43 can move under the action of the second tension spring 48 and clamp the pull wire 125 through the inclined block 44, then the moving plate 41 can be driven to move under the action of the first tension spring 25, and the pull wire can be pulled after the moving plate 41 moves, so that the stop rod 31 and the stop block 32 are retracted to the original position, and after the pull wire 125 continues to move, the movable frame 12 can be lifted, so that the movable frame 12 is retracted to the inside the needle 1.

The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. So that the manner in which the invention is fully understood, specific details are set forth in the preferred embodiments of the invention, and the invention will be fully understood by those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present invention.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. The cricothyroid membrane puncture medicine injection device comprises a needle head and is characterized in that a fixing frame is fixedly arranged on the upper side of the inside of the needle head, a movable frame is arranged on the lower side of the inside of the needle head, a blocking mechanism is arranged on one side of the outer side of the movable frame, and the blocking mechanism blocks the needle head;

The blocking mechanism comprises a blocking rod, one end of the blocking rod, which is far away from the middle part of the movable frame, is fixedly provided with a blocking block, and the blocking block is arranged in an arc shape;

The upper side of the needle is fixedly provided with a blocking sleeve, a medicine storage cavity is formed in the blocking sleeve, a liquid leakage port is formed in the lower side of the medicine storage cavity, the liquid leakage port is communicated with the interior of the needle, and the size of the blocking sleeve is larger than that of the needle;

The blocking mechanism further comprises an elastic strip fixedly connected with the blocking rod, the position of the elastic strip connected with the blocking rod is located at one end of the blocking rod, which is close to the middle of the movable frame, a movable groove is formed in the outer wall of the movable frame, which corresponds to the blocking rod, the blocking rod is slidably connected with the movable groove, and the position of the blocking block corresponds to the position of the needle point;

The middle part of the upper end of the movable frame is fixedly provided with a rotating rod, the inner wall of the fixed frame is provided with a rotating groove at a position corresponding to the rotating rod, the inner wall of the rotating groove is provided with a first vertical groove, a second vertical groove and a thread groove, the thread groove is positioned on the upper sides of the first vertical groove and the second vertical groove, two ends of the thread groove are respectively communicated with the upper ends of the first vertical groove and the second vertical groove, the length of the first vertical groove is smaller than that of the second vertical groove, the outer wall of the rotating rod is fixedly provided with a guide block at a position corresponding to the first vertical groove, and the outer wall of the guide block can be in sliding contact with the first vertical groove, the thread groove and the second vertical groove;

the lower end of the guide block is slidably provided with a limiting block, and the lower end of one side of the limiting block, which is close to the thread groove, is of an inclined structure.

2. The cricothyroid membrane puncture medicine injection device according to claim 1, wherein a stay wire is arranged in the middle of the rotating rod in a penetrating way, and the lower end of the stay wire is fixedly connected with the stop lever.

3. The cricothyroid membrane puncture medicine injection device according to claim 2, wherein the upper end of the blocking sleeve is provided with an air inlet, the lower side of the air inlet is provided with a sealing plate, the upper end of the stay wire is fixedly connected with the lower end of the sealing plate, the upper end of the sealing plate is elastically connected with the inner wall of the blocking sleeve through a reset spring, and the sealing plate can seal the air inlet.

4. The cricothyroid membrane puncture drug injection device according to claim 3, wherein a pulling mechanism is arranged in the blocking sleeve, the pulling mechanism comprises a moving plate, the moving plate is sleeved outside a pull wire, a moving groove is formed in the moving plate, a moving rod is slidably mounted in the moving groove, an inclined block is fixedly mounted at one end of the moving rod, which is close to the pull wire, and the inclined block extrudes the outer wall of the pull wire.

5. The cricothyroid membrane puncture medicine injection device according to claim 4, wherein a fixture block is slidably installed at the lower end of the moving plate, a buoy is fixedly installed at the lower end of the fixture block, a clamping groove is formed in a position, corresponding to the fixture block, of the lower end of the moving rod, the fixture block is matched with the clamping groove in a clamping manner, a slot is formed in a position, corresponding to the end portion of the moving rod, of the inner wall of the medicine storage cavity, the moving rod is matched with the slot in an inserting manner, the middle portion of the moving rod is of a U-shaped structure, and the middle portion of the moving rod is elastically connected with the moving plate through a second tension spring.

6. The cricothyroid membrane puncturing drug injection device as claimed in claim 5, wherein a plurality of first tension springs are fixedly arranged at the upper end of the moving plate, and the upper ends of the first tension springs are fixedly connected with the inner wall of the drug storage cavity.