Thyrocricoid puncture trocar

Abstract

The utility model discloses a cricothyroid membrane puncture trocar, and belongs to the technical field of medical treatment. The device mainly comprises a needle tube, the needle tube is sleeved with a sleeve, the upper end of the sleeve is fixedly sleeved with a limiting tube, one end, away from the sleeve, of the limiting tube is fixedly provided with a fixing block, one side, away from the limiting tube, of the fixing block is rotatably provided with a rotating tube, the inner side of the rotating tube is in threaded connection with a movable block, and the upper end of the movable block is provided with a fixing hole. The upper end of the needle tube extends into the fixing hole, and a matching block is fixed to the upper end of the needle tube and matched with the fixing hole. The rotating tube is in threaded connection with the movable block, the tip end of the needle tube can be driven to slowly extend out, medical staff can conveniently and finely adjust the puncturing angle and position of the needle tube according to the situation, the cricothyroid membrane puncture trocar is not prone to shaking in the mode, and the situation that due to improper force application, the trocar cannot be damaged easily is avoided. And the problem that the position and the angle of the needle tube driven by the injector are deviated or the needle tube is punctured too deep is solved. According to the cricothyroid membrane puncture trocar, the effect of accurately controlling the needle inserting distance is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and more specifically, to a cricothyroid membrane puncture cannula. Background Technology

[0002] Cricothyroidotomy is an emergency treatment method used in clinical practice for patients with airway obstruction and severe respiratory distress. Currently, most cricothyroidotomy devices are assembled from readily available materials, such as using a syringe to advance the cricothyroidotomy cannula. However, during use, improper force can easily occur, and the cricothyroidotomy cannula can easily wobble, leading to problems such as deviation in the insertion position and angle, or excessive insertion depth.

[0003] Therefore, it is necessary to provide a cricothyroid membrane puncture cannula to solve the above problems. Utility Model Content

[0004] Based on the aforementioned problems in the existing technology, the purpose of this application is to provide a cricothyroid membrane puncture cannula needle that achieves precise control of the needle insertion distance.

[0005] The technical solution adopted by this application to solve its technical problem is: a cricothyroid membrane puncture cannula needle, including a needle tube, a sleeve sleeved on the needle tube, a limiting tube fixedly installed on the upper end of the sleeve, a fixing block fixedly installed on the end of the limiting tube away from the sleeve, a rotating tube rotatably provided on the side of the fixing block away from the limiting tube, a movable block threadedly connected to the inner side of the rotating tube, a fixing hole provided on the upper end of the movable block, the upper end of the needle tube extending into the fixing hole, and a mating block fixed on the upper end of the needle tube, the mating block being adapted to the fixing hole.

[0006] Furthermore, an airbag is fixedly fitted onto the lower outer wall of the sleeve, and an inflation tube is provided on one side of the airbag.

[0007] Furthermore, an extension tube is provided on the side of the movable block near the limiting tube, and a limiting hole is provided on the fixed block. The extension tube is rectangular, the limiting hole is adapted to the extension tube, and the extension tube extends into the sleeve through the limiting hole.

[0008] Furthermore, a syringe sleeve is fixed to the end of the mating block away from the needle tube, and a syringe is installed on the side of the syringe sleeve away from the mating block.

[0009] Furthermore, a limiting sleeve is fixedly sleeved on the outside of the limiting tube, and limiting plates are provided on both sides of the outer wall of the limiting sleeve.

[0010] Furthermore, a fixing sleeve is provided at the lower end of the limiting sleeve.

[0011] The beneficial effects of the utility model are:

[0012] When the rotating tube is rotated, the threaded connection between the rotating tube and the movable block will cause the tip of the needle to extend slowly, which makes it convenient for medical staff to fine-tune the angle and position of the needle insertion according to the situation. This method also makes the cricothyroid membrane puncture cannula needle less likely to shake, avoiding problems such as improper force causing the syringe to drive the needle to deviate in position or angle, or to insert too deeply. Attached Figure Description

[0013] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of a cricothyroid membrane puncture cannula according to this application;

[0015] Figure 2 for Figure 1 A schematic diagram of the dissected cricothyroid membrane puncture cannula;

[0016] Figure 3 for Figure 1 A side sectional view of the internal structure of the rotating tube;

[0017] Figure 4 for Figure 1 A schematic diagram of the internal structure of the rotating tube;

[0018] In the picture:

[0019] 1. Needle; 11. Connecting block; 12. Syringe sleeve; 13. Syringe;

[0020] 2. Sleeve; 21. Airbag; 22. Inflation tube;

[0021] 3. Limiting tube; 31. Limiting sleeve; 32. Limiting plate; 33. Fixing sleeve;

[0022] 4. Fixing block; 41. Limiting hole;

[0023] 5. Rotating tube; 51. Movable block; 52. Extension tube; 53. Fixing hole. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this invention, unless otherwise stated, the orientations used, such as "up" and "down," generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this invention.

[0027] like Figure 1-4 As shown, this application provides a cricothyroid membrane puncture cannula needle, including a needle tube 1, a cannula 2 sleeved on the needle tube 1, an air bladder 21 fixedly sleeved on the lower outer wall of the cannula 2, and an inflation tube 22 provided on one side of the air bladder 21.

[0028] A limiting tube 3 is fixedly installed on the upper end of the sleeve 2. A fixing block 4 is fixedly installed on the end of the limiting tube 3 away from the sleeve 2. A rotating tube 5 is rotatably installed on the side of the fixing block 4 away from the limiting tube 3.

[0029] The rotating tube 5 is threadedly connected to a movable block 51. An extension tube 52 is provided on the side of the movable block 51 near the limiting tube 3. A limiting hole 41 is provided on the fixed block 4. The extension tube 52 is rectangular. The limiting hole 41 is adapted to the extension tube 52. The extension tube 52 passes through the limiting hole 41 and extends into the sleeve 2.

[0030] The upper end of the movable block 51 is provided with a fixing hole 53. The upper end of the needle tube 1 passes through the limiting tube 3, the limiting hole 41 and the extension tube 52 and then extends into the fixing hole 53. The upper end of the needle tube 1 is fixed with a mating block 11, which is adapted to the fixing hole 53.

[0031] A syringe sleeve 12 is fixed to the end of the mating block 11 away from the needle tube 1, and a syringe 13 is installed on the side of the syringe sleeve 12 away from the mating block 11.

[0032] A limiting sleeve 31 is fixedly sleeved on the outside of the limiting tube 3, and limiting plates 32 are provided on both sides of the outer wall of the limiting sleeve 31.

[0033] A fixing sleeve 33 is provided at the lower end of the limiting sleeve 31.

[0034] During use, medical personnel hold the cricothyroid membrane puncture cannula and insert it into the trachea through a puncture hole made in the patient's neck. The fixing sleeve 33 is used to support the cannula 2 during the process to prevent the needle tube 1 inside from bending or breaking due to resistance.

[0035] When the lower end of the fixing sleeve 33 is in contact with the patient's neck, the syringe 13 is pushed first, causing the mating block 11 to slide within the fixing hole 53. This allows the tip of the needle tube 1 to quickly approach the trachea, ensuring the speed of the procedure. Once the tip of the needle tube 1 is close to the trachea, the syringe 13 is released, and the rotating tube 5 is rotated. Through the threaded connection between the rotating tube 5 and the movable block 51, the tip of the needle tube 1 is slowly extended. This allows medical personnel to fine-tune the angle and position of the needle tube 1 as needed, and this method prevents the cricothyroid membrane puncture cannula from shaking. This avoids problems such as improper force causing the syringe 13 to deviate from the insertion position or angle of the needle tube 1, or to penetrate too deeply.

[0036] When airflow is detected in needle 1, it indicates successful puncture and that the lower end of cannula 2 has been inserted into the trachea along with needle 1. At this point, remove the fixing block 4 and fixing sleeve 33. Removing the fixing block 4 will pull needle 1 out. Continue inserting cannula 2 until the limiting plate 32 is flush with the patient's neck. Then, use a strap to secure the limiting tube 3 to the patient's neck, thereby fixing the outer end of cannula 2. Next, inflate the cuff 21 through the inflation tube 22 until there is noticeable resistance during inflation. The expansion of the cuff 21 will fix the lower end of cannula 2 inside the trachea. Finally, connect the outer end of cannula 2 to the medical air supply device.

[0037] Obviously, the embodiments described above are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort should fall within the scope of protection of this invention.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0041] The above description is merely a preferred embodiment of this invention. The scope of protection of this invention is not limited to the above embodiments. All technical solutions falling within the scope of this invention's concept are within the scope of protection of this invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this invention should also be considered within the scope of protection of this invention.

Claims

1. A cricothyroid membrane puncture cannula, characterized in that: The device includes a needle tube (1), on which a sleeve (2) is fitted. A limiting tube (3) is fixedly installed on the upper end of the sleeve (2). A fixing block (4) is fixedly installed on the end of the limiting tube (3) away from the sleeve (2). A rotating tube (5) is rotatably provided on the side of the fixing block (4) away from the limiting tube (3). A movable block (51) is threadedly connected to the inner side of the rotating tube (5). A fixing hole (53) is provided on the upper end of the movable block (51). The upper end of the needle tube (1) extends into the fixing hole (53). A mating block (11) is fixed on the upper end of the needle tube (1). The mating block (11) is adapted to the fixing hole (53).

2. The cricothyroid membrane puncture cannula according to claim 1, characterized in that: An airbag (21) is fixedly fitted onto the outer wall of the lower end of the sleeve (2), and an inflation tube (22) is provided on one side of the airbag (21).

3. The cricothyroid membrane puncture cannula according to claim 1, characterized in that: The movable block (51) is provided with an extension tube (52) on the side near the limiting tube (3). The fixed block (4) is provided with a limiting hole (41). The extension tube (52) is rectangular. The limiting hole (41) is adapted to the extension tube (52). The extension tube (52) passes through the limiting hole (41) and extends into the sleeve (2).

4. The cricothyroid membrane puncture cannula according to claim 1, characterized in that: The end of the mating block (11) away from the needle tube (1) is fixed with a syringe sleeve (12), and a syringe (13) is installed on the side of the syringe sleeve (12) away from the mating block (11).

5. The cricothyroid membrane puncture cannula according to claim 1, characterized in that: A limiting sleeve (31) is fixedly sleeved on the outside of the limiting tube (3), and limiting plates (32) are provided on both sides of the outer wall of the limiting sleeve (31).

6. The cricothyroid membrane puncture cannula according to claim 5, characterized in that: The lower end of the limiting sleeve (31) is provided with a fixing sleeve (33).

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