Trachea puncture needle
By setting a limiting assembly and a barrier on the outside of the needle body of the tracheal puncture needle, the control of the puncture depth is solved, and the problem of inability to effectively control the puncture depth in the prior art is solved, reducing the occurrence of complications of tracheal esophageal fistula.
Patent Information
- Application Number
- CN202420647517.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-01
AI Technical Summary
Existing tracheal puncture needles cannot effectively control the puncture depth, resulting in the occurrence of complications of tracheoesophageal fistula.
A tracheal puncture needle is designed, which includes a needle body, a needle core and a connecting seat. A group of limiting components and barriers are arranged on the outside of the needle body. By fixing the barrier on the limiting components at different positions, physical structure blocking of different lengths is achieved, thereby controlling the puncture depth.
By controlling the depth of the puncture, the occurrence of tracheoesophageal fistula is significantly reduced.
Smart Images
Figure CN222676382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a tracheal puncture needle. Background Art
[0002] When performing tracheotomy at the bedside in the ICU, the skin and muscle layer are first cut open to further expose the front of the tracheal cartilage ring before puncture. The depth of puncture into the airway is relatively fixed, so the puncture depth of the tracheal puncture needle needs to be relatively controlled and fixed. However, the existing tracheal puncture needle is a smooth straight needle, and the puncture depth cannot be controlled by the physical structure of the puncture needle itself. The puncture depth needs to be controlled by the puncturist himself, and it is controlled by the puncturist's experience. Once the puncture depth is not well controlled, it is easy to cause tracheoesophageal fistula complications.
[0003] Therefore, how to improve the structure of the tracheal puncture needle to control the puncture depth is a technical problem that needs to be solved in this application. Summary of the invention
[0004] The utility model aims to provide a tracheal puncture needle, which can realize controllable adjustment of the puncture depth before tracheotomy, and can reduce the complication of tracheoesophageal fistula during tracheotomy puncture to the greatest extent.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The utility model provides a tracheal puncture needle, comprising a needle body, a needle core and a connecting seat. The needle body is tubular and has a lumen into which the needle core can be inserted. The tip of the needle core passes through the end of the lumen. The head of the connecting seat is fixedly connected to the needle core and inserted into the tail interface of the needle body.
[0007] A plurality of groups of position-limiting components are arranged at intervals along the axial direction on the outer tube wall of the needle body, and a blocking sheet is detachably fixed on each group of position-limiting components.
[0008] For the above technical solution, the applicant has further optimization measures.
[0009] Optionally, each group of limiting components includes two limiting rings, each of the limiting rings is arranged along the radial direction of the needle body and is arranged opposite to each other, and a limiting cavity for limiting the blocking piece is formed between the two limiting rings.
[0010] Optionally, the blocking sheet has a slot with a single-side opening, and the slot is fixed on the outer tube wall of the needle body and between the two limiting rings of the limiting assembly.
[0011] Optionally, two locking parts for locking the needle body are provided at the opening of the slot, and the two locking parts are relatively arranged at two sides of the opening.
[0012] Optionally, the locking portion is C-shaped or S-shaped.
[0013] Optionally, the plurality of groups of limiting components are evenly spaced and arranged on the outer tube wall of the needle body.
[0014] Optionally, a set of limiting components close to the end of the needle body is 1.1 cm to 1.3 cm away from the tip of the needle body, and a distance between two adjacent sets of limiting components is 0.1 cm to 0.2 cm.
[0015] Optionally, the tail interface of the needle body is a Y-shaped structure for easy connection and operation.
[0016] Optionally, the tail portion of the connecting seat is used to connect a syringe.
[0017] Optionally, the needle body is a double-layer tube structure, with a cavity between the inner tube body and the outer tube body, and a plurality of notches are spaced apart on the outer tube body, each notch serving as a limiting cavity, and a blocking piece is respectively provided in each limiting cavity, and a claw is provided at the bottom of the blocking piece, and the claw is inserted in the notch for fixedly connecting the blocking piece and the needle body.
[0018] In particular, the present invention also provides a tracheal puncture needle, which includes a needle core and a connecting seat, the needle core has a pointed end, the head of the connecting seat is fixedly connected to the needle core, and a plurality of groups of limit assemblies are arranged on the outer wall of the needle core at intervals along the axial direction, and a blocking plate is detachably fixed on each group of limit assemblies.
[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0020] The utility model provides a tracheal puncture needle in which the distance from the limiting component to the tip of the needle core passing through the needle body is fixed, and physical structural blockages of different lengths can be achieved by fixing the blocking piece on the limiting component at different positions, thereby achieving control of the puncture depth, thereby minimizing tracheoesophageal fistula, a complication of tracheotomy puncture. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:
[0022] Figure 1It is a schematic diagram of the structure of a tracheal puncture needle according to an embodiment of the utility model, wherein the tracheal puncture needle is connected to a syringe;
[0023] Figure 2 It is a schematic structural diagram of a tracheal puncture needle according to one embodiment of the utility model;
[0024] Figure 3 for Figure 2 A schematic diagram of the local structure of the tracheal puncture needle shown;
[0025] Figure 4 for Figure 2 A schematic diagram of the structure in which the blocking piece in the tracheal puncture needle is arranged outside the needle body;
[0026] Figure 5 It is a schematic diagram of the arrangement structure between the blocking piece and the limiting assembly in the tracheal puncture needle according to one embodiment of the utility model;
[0027] Figure 6 is a schematic diagram of the three-dimensional structure of a blocking sheet in one embodiment of the utility model;
[0028] Figure 7 is a schematic diagram of the main structure of a blocking sheet according to an embodiment of the utility model;
[0029] Figure 8 is a schematic diagram of the front view structure of a blocking sheet according to another embodiment of the utility model;
[0030] Fig. 9 is a schematic diagram of the front view structure of a blocking sheet in another embodiment of the utility model;
[0031] Fig.10 is a schematic structural diagram of a tracheal puncture needle according to another embodiment of the utility model;
[0032] Fig.11 It is a structural schematic diagram of a blocking piece in a tracheal puncture needle described in another embodiment of the utility model being arranged on the outer side of the needle body.
[0033] The following are the descriptions of the reference numerals:
[0034] 1. needle body, 11. lumen, 12. inner tube body, 13. outer tube body, 14. notch;
[0035] 2. Needle core;
[0036] 3. Connecting seat;
[0037] 4. a limiting assembly, 41. a limiting ring, 42. a limiting cavity, 401. a first limiting assembly, 402. a second limiting assembly, 403. a third limiting assembly;
[0038] 5. blocking piece, 51. card slot, 52. locking part, 53. claw;
[0039] 6. Syringe. DETAILED DESCRIPTION
[0040] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0041] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example
[0043] This embodiment describes a tracheal puncture needle, such as Figures 1 to 3 As shown, it comprises a needle body 1, a needle core 2 and a connection seat 3. The needle body 1 is tubular and has a lumen 11 into which the needle core 2 can penetrate. The tip of the needle core 2 passes through the end of the lumen 11. The head of the connection seat 3 is fixedly connected to the needle core 2 and inserted into the tail interface of the needle body 1. The tail interface of the needle body 1 is a Y-shaped structure, which is convenient for connection and operation, and the tail of the connection seat 3 is used to connect a syringe 6. Multiple groups of stopper components 4 are arranged at intervals along the axial direction on the outer wall of the needle body 1, and a blocking sheet 5 is detachably fixed on each group of stopper components 4.
[0044] In this embodiment, the needle body 1 is the main part of the tracheal puncture needle, which usually adopts a tubular structure. The needle body 1 can be set to a structure that gradually thickens from the tip upwards. This design is conducive to gradual penetration during puncture and can ensure the stability and safety of puncture. The needle core 2 is the part inserted into the lumen 11 of the needle body 1. Its head is arc-shaped and pointed, which is convenient for puncture, and the needle tip of the needle core 2 is exposed outside the lumen 11, which can make the needle tip more accurately penetrate the target position. At the same time, the arc-shaped design of the needle core 2 also helps to reduce damage to surrounding tissues during puncture. The connecting seat 3 is an important component of the tracheal puncture needle. It is a connecting component. The head of the connecting seat 3 is fixedly connected to the needle core 2 and inserted into the tail interface of the needle body 1. The tail of the connecting seat 3 is provided with a syringe 6 interface, which allows the tracheal puncture needle to be conveniently connected to the syringe 6 or other medical equipment to achieve multiple functions.
[0045] In addition, a movable connecting nut may be provided on the connecting seat 3 to cooperate with the thread on the main side of the needle body 1 to more tightly connect the connecting seat 3 and the needle body 1 to ensure stability and reliability during the puncture process.
[0046] In this embodiment, the distance from the stopper assembly 4 to the tip of the needle core 2 passing through the needle body 1 is fixed during production. Figure 2 As shown, the distance L1 between the first stopper component 401 close to the end of the needle body 1 and the tip of the needle body 1 is 1.1 cm, and the distance between two adjacent groups of stopper components 4 is 0.2 cm. Therefore, the distance L2 between the second stopper component 402 and the tip of the needle body 1 is 1.3 cm, and the distance L3 between the third stopper component 403 and the tip of the needle body 1 is 1.5 cm, so the distances between the remaining stopper components 4 and the tip of the needle body 1 can be deduced. Of course, the above distances can be adjusted to produce tracheal puncture needles with different parameters, such as L1 is 1.2 cm, and each group of stopper components 4 is set at an interval of 0.2 cm, or L1 is 1.3 cm, and each group of stopper components 4 is set at an interval of 0.1 cm, so that it can be selectively adapted to different patients.
[0047] Therefore, the present application can achieve physical structure blocking of different lengths by fixing the blocking piece 5 on the limiting component 4 at different positions, thereby achieving control of the puncture depth, which can minimize the tracheoesophageal fistula, a complication of tracheotomy puncture.
[0048] It is understandable that the diameter of the large airways of an average adult is about 1.5 to 2 cm. Taking into account the incompletely exposed anterior tissue of the tracheal cartilage ring and the thickness of the tracheal wall, the present application designs the tracheal puncture needle to have different and selectable puncture depths, so that the tracheal puncture needle can not only cover the puncture depth requirements of 1.3 cm to 1.7 cm, but also meet the puncture requirements of some specific patients. The existence of the blocking sheet 5 is equivalent to adding a fixed-length puncture depth limiter to the tracheal puncture needle, similar to the bone marrow puncture needle style commonly used in clinical practice, which can be used to prevent the tracheal puncture needle from further puncturing. The other structures can be basically consistent with the existing puncture needle. The rear end of the gas puncture needle can be connected to the syringe 6, and a finger guide wire can be inserted.
[0049] like Figures 2 to 4 As shown, each group of limiting components 4 includes two limiting rings 41 , each of the limiting rings 41 is arranged along the radial direction of the needle body 1 and is arranged opposite to each other, and a limiting cavity 42 for limiting the blocking sheet 5 is formed between the two limiting rings 41 .
[0050] like Figure 5 , Figure 6 As shown, the blocking sheet 5 has a slot 51 with a single-side opening, and the slot 51 is fixed on the outer tube wall of the needle body 1 and between the two limiting rings 41 of the limiting assembly 4. Two locking parts 52 for locking the needle body 1 are arranged at the opening of the slot 51, and the two locking parts 52 are arranged on both sides of the opening.
[0051] The size of the clamping groove 51 is basically adapted to the outer diameter of the needle body 1, so that it can be stably clamped on the outer wall of the needle body 1. The blocking sheet 5 is made of medical plastic with a certain elasticity, and the locking portion 52 has a certain elasticity, which can assist in clamping the needle body 1. The shape of the locking portion 52 can be various shapes, such as Figures 7 to 9 The inverted S-shape, S-shape or C-shape shown in FIG. 5 all have a certain bending portion bent toward the inside of the card slot 51, so that Figure 5 As shown, the outer tube wall of the needle body 1 is clamped, and at the same time, the limiting rings 41 of the limiting assembly 4 are respectively located on the opposite sides of the blocking piece 5, so as to hold the blocking piece 5 along the axial direction of the needle body 1. Example
[0052] This embodiment describes a tracheal puncture needle, such as Fig.10 As shown, it includes a needle core 2 and a connecting seat 3, the needle core 2 has a pointed end, the head of the connecting seat 3 is fixedly connected to the needle core 2, and a plurality of groups of limit assemblies 4 are arranged on the outer wall of the needle core 2 at intervals along the axial direction, and a blocking piece 5 is detachably fixed on each group of limit assemblies 4.
[0053] That is to say, the needle body 1 is eliminated, and the limiting assembly 4 and the blocking piece 5 are directly arranged outside the needle core 2. This solution is generally suitable for short needles (tracheal puncture needles with a needle length of 5 cm to 7 cm). As for the structure of the limiting assembly 4 and the blocking piece 5, they can be arranged outside the needle body 1 in Example 1, and will not be repeated here. Example
[0054] This embodiment describes a tracheal puncture needle, the main structure of which is the same as that of the gas puncture needle described in Example 1, except that the setting structure between the blocking plate and the limiting assembly in the tracheal puncture needle is different.
[0055] In this embodiment, the needle body 1 is a double-layer tube structure, with a cavity between the inner tube body 12 and the outer tube body 13, and a plurality of notches 14 are spaced apart on the outer tube body, each notch 14 serving as a limiting cavity, and a blocking piece 5 is respectively clamped in each limiting cavity, i.e., the notch 14, and the bottom of the blocking piece 5 has a claw 53, and the claw 53 is inserted in the notch 14 for fixing the blocking piece 5 and the needle body 1, so as to fix the blocking piece 5 outside the needle body 1. According to the different fixing positions of the blocking piece 5, different lengths of physical structure blocking can be achieved, thereby achieving control of the puncture depth, which can minimize the complications of tracheotomy puncture, such as tracheoesophageal fistula.
[0056] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A tracheal puncture needle, characterized in that: It includes a needle body, a needle core and a connecting seat. The needle body is tubular and has a lumen into which the needle core can be inserted. The tip of the needle core passes through the end of the lumen. The head of the connecting seat is fixedly connected to the needle core and inserted into the tail interface of the needle body. A plurality of groups of position-limiting components are arranged at intervals along the axial direction on the outer tube wall of the needle body, and a blocking sheet is detachably fixed on each group of position-limiting components.
2. The tracheal puncture needle according to claim 1, characterized in that: Each group of limiting components includes two limiting rings, each of which is arranged along the radial direction of the needle body and is arranged opposite to each other, and a limiting cavity for limiting the blocking sheet is formed between the two limiting rings.
3. The tracheal puncture needle according to claim 2, characterized in that: The blocking sheet is provided with a clamping groove with a single-side opening, and the clamping groove is clamped and fixed on the outer tube wall of the needle body and between the two limiting rings of the limiting assembly.
4. The tracheal puncture needle according to claim 3, characterized in that: Two locking parts for locking the needle body are arranged at the opening of the slot, and the two locking parts are arranged oppositely at two sides of the opening.
5. The tracheal puncture needle according to claim 4, characterized in that: The locking portion is C-shaped or S-shaped.
6. The tracheal puncture needle according to claim 1, characterized in that: The plurality of groups of limiting components are evenly spaced and arranged on the outer tube wall of the needle body.
7. The tracheal puncture needle according to claim 6, characterized in that: A set of limiting components close to the end of the needle body is 1.1 cm to 1.3 cm away from the tip of the needle body, and a distance between two adjacent sets of limiting components is 0.1 cm to 0.2 cm.
8. The tracheal puncture needle according to claim 1, characterized in that: The tail interface of the needle body is a Y-shaped structure, which is convenient for connection and operation.
9. The tracheal puncture needle according to claim 1, characterized in that: The needle body is a double-layer tube structure, with a cavity between the inner tube body and the outer tube body, and a plurality of notches are spaced apart on the outer tube body, each notch serving as a limiting cavity, and a blocking piece is respectively clamped in each limiting cavity, and a claw is provided at the bottom of the blocking piece, and the claw is inserted in the notch for fixedly connecting the blocking piece and the needle body.
10. A tracheal puncture needle, characterized in that: It includes a needle core and a connecting seat, the needle core has a pointed end, the head of the connecting seat is fixedly connected to the needle core, a plurality of groups of limit assemblies are arranged on the outer wall of the needle core at intervals along the axial direction, and a blocking piece is detachably fixed on each group of limit assemblies.