Thyrocricoid puncture device
By designing a deformable structure and limiting components for the cricothyroid membrane puncture device, the problem of easy dislodgement of the cricothyroid membrane puncture needle was solved, achieving airway stability and ventilation continuity, thus ensuring the patient's life support time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHILDRENS HOSPITAL
- Filing Date
- 2025-04-08
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the cricothyroid membrane puncture needle is prone to dislodgement and displacement during use due to patient movement or needle collision, resulting in airway instability and inability to effectively maintain the ventilation channel.
A cricothyroid membrane puncture device was designed, including a puncture component, a hollow sleeve, a deformable structure, and a limiting component. By cooperating with the limiting component through the extended shape of the deformable structure, a stable inner and outer limiting structure is formed to ensure the fixation of the hollow sleeve at the cricothyroid membrane.
It achieves stable positioning of the hollow cannula in the patient's trachea, avoiding dislodgement and displacement, ensuring that the patient receives valuable emergency time, and providing a stable artificial airway ventilation channel.
Smart Images
Figure CN224251454U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, specifically to a cricothyroid membrane puncture device. Background Technology
[0002] Airway obstruction by a foreign object is a critical emergency requiring immediate attention, which can rapidly lead to breathing difficulties, oxygen deprivation, and even death. In situations where medical care and first aid are unavailable, the Heimlich maneuver can often be used to increase intrathoracic pressure and help expel the foreign object from the airway. However, the Heimlich maneuver is not effective for all types of airway obstruction; for example, airway obstruction caused by accidentally eating soft, sticky foods often cannot be cleared using the Heimlich maneuver.
[0003] Cricothyroid membrane puncture is an emergency technique used to establish a temporary airway. The cricothyroid membrane is located superficially between the thyroid cartilage and cricoid cartilage and is easily palpable. When tracheal obstruction causes severe breathing difficulties and an airway cannot be established by conventional methods, cricothyroid membrane puncture can quickly provide a ventilation channel and alleviate the patient's hypoxia. This procedure is relatively simple, requires few instruments, and can provide necessary ventilation support to the patient in a short time, buying time for subsequent rescue and further treatment.
[0004] After establishing an airway by inserting a cricothyroid membrane puncture needle into the cricothyroid membrane, it is usually necessary to keep the inserted needle stable to ensure smooth ventilation of the established artificial airway. In order to avoid situations such as needle dislodgement or displacement caused by patient movement or collision with the needle, those skilled in the art have dedicated themselves to designing corresponding auxiliary structures to achieve the purpose of stabilizing the needle. Utility Model Content
[0005] In view of this, the present invention provides a cricothyroid membrane puncture device, the cricothyroid membrane puncture device comprising:
[0006] A puncture assembly, the puncture assembly comprising a puncture end and an operating end;
[0007] A hollow sleeve, one end of which is provided with a deformable structure, the deformable structure being adapted to expand outward into an extended shape by external force; a puncture assembly is inserted into the hollow sleeve, the puncture end and the operating end protruding from the hollow sleeve; the puncture assembly is detachably connected to the deformable structure at one end near the puncture end, thereby enabling the deformable structure to be adjusted to its extended shape by driving the puncture assembly;
[0008] A limiting component is disposed on the hollow sleeve, and the extended shape of the deformable structure cooperates with the limiting component to form a limiting structure suitable for being disposed inside and outside the annular membrane.
[0009] Furthermore, the cricothyroid membrane puncture device also includes a cap adapted to be connected to the end of the hollow sleeve.
[0010] Furthermore, the cap includes an adapter pipe and a cap portion, one end of the adapter pipe being adapted to connect to the end of the hollow sleeve, and the other end being adapted to connect to the airbag interface and the cap portion.
[0011] Furthermore, the adapter tube and the cap are connected.
[0012] Furthermore, the puncture assembly and the deformable structure are connected by threads.
[0013] Furthermore, the limiting component is an O-ring fitted onto the outside of the hollow sleeve.
[0014] Furthermore, a limiting groove that mates with the O-ring is provided on the outer side of the hollow sleeve.
[0015] Furthermore, the operating end includes a ring-shaped structure.
[0016] Furthermore, the hollow sleeve includes a set of matching magnetic components, which attract each other when the deformable structure is in an extended state.
[0017] Furthermore, the puncture assembly is provided with a reference mark to assist in determining the relative positional relationship between the puncture assembly and the hollow cannula.
[0018] The cricothyroid membrane puncture device of this invention can conveniently and quickly stabilize the hollow cannula inserted into the patient's trachea in the required position. Specifically, through the extension shape of the deformable structure and the cooperation of the limiting component, a limiting structure is formed inside and outside the trachea at the cricothyroid membrane puncture site, thereby making it less likely for the hollow cannula, which serves as an artificial airway, to fall off or shift, so as to ensure that the patient has the precious time to wait for emergency treatment.
[0019] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a cricothyroid membrane puncture device according to an embodiment of the present invention;
[0021] Figure 2 yes Figure 1 A schematic diagram of the cricothyroid membrane puncture device;
[0022] Figure 3 yes Figure 1 A schematic diagram of the puncture component of the cricothyroid membrane puncture device;
[0023] Figure 4 yes Figure 1 A schematic diagram of the hollow sleeve of the cricothyroid membrane puncture device;
[0024] Figure 5 yes Figure 4 A partially enlarged schematic diagram of one end of the hollow sleeve;
[0025] Figure 6 yes Figure 4 A schematic diagram of the hollow sleeve in an extended state during deformation.
[0026] Figure 7 yes Figure 1 A schematic diagram of the assembly and connection of the puncture component and hollow sleeve of the cricothyroid membrane puncture device;
[0027] Figure 8 yes Figure 1 A schematic diagram of the cap of the cricothyroid membrane puncture device, where the dashed lines are the hidden outlines in the structure;
[0028] Figure 9 yes Figure 1 A schematic diagram of the cricothyroid membrane puncture device in use.
[0029] Explanation of reference numerals in the attached figures:
[0030] 100—Puncture Components
[0031] 110—Puncture tip,
[0032] 120—Operating Terminal
[0033] 130—External thread,
[0034] 200—Hollow sleeve,
[0035] 210—Deformation structure,
[0036] 211—Connector,
[0037] 212—Conical tube structure,
[0038] 213—Internal thread,
[0039] 220—Limiting groove,
[0040] 300-O-ring,
[0041] 400—pipe cap,
[0042] 410—Transfer of Control
[0043] 420—Cap section,
[0044] 430—Connecting bar. Detailed Implementation
[0045] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. The accompanying drawings are schematic diagrams or conceptual diagrams, and the relationships between the thickness and width of each part, as well as the proportional relationships between each part, etc., are not entirely consistent with their actual values.
[0046] Figure 1 and Figure 2 A schematic diagram of a cricothyroid membrane puncture device according to an embodiment of the present invention is shown, including a puncture assembly 100, a hollow sleeve 200, an O-ring 300, and a cap 400. The puncture assembly 100 is inserted into the hollow sleeve 200, the O-ring 300 is fitted on the outside of the hollow sleeve 200, and the cap 400 is connected to the end of the hollow sleeve 200.
[0047] like Figure 3 As shown, the main body of the puncture assembly 100 is a long cylindrical structure, with a puncture end 110 and an operating end 120 respectively provided at both ends. The puncture end 110 is a sharp body with a conical structure, used to perform puncture on the human body, specifically to puncture the cricothyroid membrane in the neck; the operating end 120 is used to facilitate the user's operation of the puncture assembly 100. In this embodiment, a ring structure is used, but other structures that facilitate hand-held operation can also be used, and no limitation is made here.
[0048] like Figure 4 As shown, the hollow sleeve 200 has a hollow tubular structure as its main body. A deformation structure 210 is provided at one end of the hollow sleeve 200. The deformation structure 210 is adapted to expand outwards into an extended shape by external force. Specifically, a force can be applied to one end of the deformation structure 210 along the axial direction of the hollow sleeve 200 to compress the deformation structure 210 in the axial direction of the hollow sleeve 200, thereby allowing it to extend outwards along the radial direction of the hollow sleeve 200. (Refer to...) Figure 6 In this embodiment, to effectively obtain the aforementioned extended shape, the deformable structure 210 adopts a hollow structure, specifically, as shown in... Figure 5As shown, the deformable structure 210 includes four sheet-like connecting bodies 211 and a tapered tube structure 212. The four connecting bodies 211 are evenly distributed along the circumference of the hollow sleeve 200 and are connected at one end to the main body of the hollow sleeve 200. The other end of the four connecting bodies 211 is connected to the tapered tube structure 212, thus forming a hollow structure. The connecting bodies 211 have a certain degree of bending, specifically bending outward relative to the central axis of the hollow sleeve 200. When a force is applied to the tapered tube structure 212 along the axial direction of the hollow sleeve 200 and pointing towards the connecting body 211, when the force reaches a certain intensity, the deformable structure 210 can be compressed in the axial direction of the hollow sleeve 200. Specifically, based on the shape and material characteristics of the connecting bodies 211 themselves, they can bend outward under the above-mentioned force, thereby causing the deformable structure 210 to expand outward while being compressed, forming its extended shape. When the deformable structure 210 of the hollow cannula 200 is inserted into the human trachea through puncture, and then driven to be in an extended state, even if the outward extension is only a few millimeters, it is sufficient to prevent the deformable structure 210 in the extended state from easily detaching from the human trachea. For the deformable structure 210, existing medical metals, alloys or polymer materials can be used, which are suitable for being deformed by a certain external force and maintaining the deformed shape.
[0049] In other embodiments, a set of cooperating magnetic components is provided on the hollow sleeve 200. For example, magnetic material layers are provided on the tapered tube structure 212 at one end of the connector 211 and on the main body of the hollow sleeve 200 at the other end. When the deformable structure 210 is in an extended state, the set of magnetic components attracts each other, thereby keeping the deformable structure 210 in an extended state. The advantages of this are that, on the one hand, it broadens the range of selectable materials for the connector 211, allowing the connector 211 to have a certain degree of elastic recovery after deformation. The attraction of the magnetic components provides the external force for the deformable structure 210 to maintain its extended state. On the other hand, based on the materials that can be selected as the connector 211, the external force required to drive its deformation is relatively smaller. That is, the deformable structure 210 can be adjusted to an extended state by applying a smaller force to pull the operating end 120.
[0050] In other embodiments, the puncture component 100 is provided with reference markers, such as scale lines or color blocks. These are used to assist in determining the relative positional relationship between the puncture component 100 and the hollow sleeve 200, that is, to determine the distance the puncture component 100 is pulled out of the hollow sleeve 200 via the operating end 120. This arrangement ensures that when the deformable structure 210 is adjusted to its extended form by pulling the operating end 120, the corresponding reference markers can be used to indicate that the deformable structure 210 has reached its extended form. For example, if the scale lines or color blocks on the puncture component 100, or the boundaries between different color blocks, are exposed from the port of the hollow sleeve 200, then pulling the operating end 120 can be stopped.
[0051] refer to Figure 3 and Figure 5 The inner side of the deformable structure 210, specifically the inner side of the tapered tube structure 212, is provided with an internal thread 213. Correspondingly, the puncture assembly 100 is provided with an external thread 130 near the puncture end 110 that mates with the internal thread 213. The puncture assembly 100 is assembled and connected to the hollow sleeve 200 by inserting the puncture end 110 of the puncture assembly 100 into one end of the hollow sleeve 200, specifically into the other end relative to where the deformable structure 210 is located, and then connecting the external thread 130 on the puncture assembly 100 with the internal thread 213 on the hollow sleeve 200. At this time, both the puncture end 110 and the operating end 120 protrude outside the hollow sleeve 200, as shown below. Figure 7 As shown. The outer surface of the tapered structure of the puncture end 110 adapts to the outer surface of the tapered tube structure 212 of the deformable structure 210, so that the puncture end 110 exposed in the hollow sleeve 200 and the deformable structure 210 have a smooth transition at the junction. Using the puncture assembly 100 and the hollow sleeve 200 assembled as described above, the operating end 120 can be pulled to act on the deformable structure 210 and adjust it to an extended shape.
[0052] like Figure 1 As shown, the O-ring 300 is fitted onto the outside of the hollow tube 200 to limit the depth of the hollow tube 200 into the human neck. Specifically, the O-ring 300 abuts against the outside of the human neck, acting as a limit to the penetration of the hollow tube 200 into the patient's trachea. In this embodiment, the O-ring 300 is made of silicone, but other existing flexible O-rings made of other materials can also be used; no limitation is made here. (Reference) Figures 4 to 7 The hollow sleeve 200 is also provided with a limiting groove 220 that cooperates with the O-ring 300. Placing the O-ring 300 in the limiting groove 220 facilitates its positioning and fixation. In this embodiment, three limiting grooves 220 are provided, and the O-ring 300 can be placed in the appropriate limiting groove 220 according to the patient's condition.
[0053] like Figure 1As shown, the cap 400 is adapted to be fitted onto the end of the hollow sleeve 200. When the cricothyroid membrane puncture device of this embodiment is not used, the cap 400 is fitted onto the end of the hollow sleeve 200 where the deformable structure 210 is located, so that the puncture end 110 of the puncture assembly 100 is placed in the cap 400 and not exposed.
[0054] like Figure 8 As shown, the cap 400 includes an adapter tube 410 and a cap 420, which are connected by a connecting strip 430. One end of the adapter tube 410 is adapted to be fitted onto the end of the hollow sleeve 200, and the other end is adapted to connect the airbag interface and the cap 420, so that the end can be connected to an external airbag and the end can be closed by the cap 420.
[0055] The cricothyroid membrane puncture device of this embodiment includes the following steps when in use:
[0056] Remove the cap 400 from the hollow sleeve 200;
[0057] The puncture end 110 of the puncture assembly 100 connected to the hollow cannula 200 is used to puncture the cricothyroid membrane in the patient's neck, so that the deformable structure 210 of the hollow cannula 200 passes through the cricothyroid membrane and enters the patient's trachea.
[0058] Hold the hollow sleeve 200 with one hand and pull the operating end 120 of the puncture component 100 outward with the other hand so that the deformable structure 210 is in an extended state.
[0059] By rotating the puncture assembly 100 through the operating end 120, the external thread 130 of the puncture assembly 100 is disengaged from the internal thread 213 of the hollow sleeve 200, and the puncture assembly 100 is removed from the hollow sleeve 200.
[0060] At this point, the hollow cannula 200 entering the patient's trachea constitutes an artificial airway. Simultaneously, the deformable structure 210 in its extended state and the O-ring 300 are located inside the patient's trachea and outside the neck, respectively, forming internal and external limiting structures. This restricts the inward and outward movement of the hollow cannula 200, ensuring it remains stably in the desired position and is less prone to dislodgement or displacement. (Reference) Figure 9 The cricothyroid membrane puncture device of this embodiment can quickly establish a stable artificial airway for patients with tracheal obstruction, buying precious time for life-sustaining personnel while waiting for emergency medical personnel. After the patient is sent to the hospital, the hollow cannula 200 can be removed when performing a tracheotomy.
[0061] In addition, when it is necessary to use an external cuff to deliver air into the artificial airway, one end of the adapter 410 of the cap 400 can be connected to the end of the hollow tube 200 outside the patient's body, and the cuff interface can be connected to the other end of the adapter 410, so that the cuff can be used to deliver air into the artificial airway.
[0062] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A cricothyroid membrane puncture device, characterized in that, include: A puncture assembly, the puncture assembly comprising a puncture end and an operating end; A hollow sleeve, one end of which is provided with a deformable structure, the deformable structure being adapted to expand outward into an extended shape by external force; a puncture assembly is inserted into the hollow sleeve, the puncture end and the operating end protruding from the hollow sleeve; the puncture assembly is detachably connected to the deformable structure at one end near the puncture end, thereby enabling the deformable structure to be adjusted to its extended shape by driving the puncture assembly; A limiting component is disposed on the hollow sleeve, and the extended shape of the deformable structure cooperates with the limiting component to form a limiting structure suitable for being disposed inside and outside the annular membrane.
2. The cricothyroid membrane puncture device as described in claim 1, characterized in that, It also includes a cap adapted to be attached to the end of the hollow sleeve.
3. The cricothyroid membrane puncture device as described in claim 2, characterized in that, The cap includes an adapter tube and a cap. One end of the adapter tube is adapted to connect to the end of the hollow sleeve, and the other end is adapted to connect to the airbag interface and the cap.
4. The cricothyroid membrane puncture device as described in claim 3, characterized in that, The adapter tube is connected to the cap.
5. The cricothyroid membrane puncture device as described in claim 1, characterized in that, The puncture assembly is connected to the deformable structure via a thread.
6. The cricothyroid membrane puncture device as described in claim 1, characterized in that, The limiting component is an O-ring fitted onto the outside of the hollow sleeve.
7. The cricothyroid membrane puncture device as described in claim 6, characterized in that, The hollow sleeve is provided with a limiting groove on its outer side to cooperate with the O-ring.
8. The cricothyroid membrane puncture device as described in claim 1, characterized in that, The operating end includes a ring structure.
9. The cricothyroid membrane puncture device as described in claim 1, characterized in that, The hollow sleeve includes a set of matching magnetic components, which attract each other when the deformable structure is in an extended state.
10. The cricothyroid membrane puncture device as described in claim 1, characterized in that, The puncture assembly is provided with a reference mark to help determine the relative positional relationship between the puncture assembly and the hollow cannula.