Over-penetrating prevention percutaneous tracheotomy puncture needle

Abstract

The utility model discloses an anti-over-penetration percutaneous tracheotomy puncture needle, which relates to the technical field of medical instruments, and comprises an injector joint, the end part of the injector joint is fixedly connected with a puncture needle, a blunt hollow tube is inserted in the puncture needle, and the side part of the blunt end of the blunt hollow tube is provided with a through hole; the end, away from the blunt end, of the blunt end hollow pipe extends into the injector connector, and a springback device used for elastically supporting the blunt end hollow pipe is arranged in the injector connector. The utility model has a simple structure, is convenient to operate, reduces the over-wearing probability, adopts a disposable structure, and can avoid repeated use and cross infection. Specifically, a rebound blunt hollow needle is additionally arranged in a conventional puncture needle, so that over-puncture is prevented on the basis that conventional puncture is not hindered. The problem of over-penetration of the puncture needle is solved, and the safety of puncture is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an anti-overpenetration percutaneous tracheotomy puncture needle. Background Art

[0002] Percutaneous tracheostomy has always troubled clinicians in the clinic. In common cases, doctors need to slowly insert the needle until they feel the needle tip has fallen into the air. However, if they are not careful, there is a risk of overpuncture, resulting in esophageal tracheal fistula. Therefore, there has been no most effective solution to overpuncture. It is especially difficult for inexperienced doctors to use puncture needles. Utility Model Content

[0003] The utility model aims to solve the disadvantage of the prior art that percutaneous tracheotomy puncture is prone to over-puncture risk, and proposes an anti-over-puncture percutaneous tracheotomy puncture needle. The anti-over-puncture percutaneous tracheotomy puncture needle can improve the puncture success rate and greatly reduce the workload of doctors.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A percutaneous tracheotomy puncture needle that prevents over-penetration is designed, comprising a syringe connector with a transparent structure, the end of the syringe connector being fixedly connected to the puncture needle, a blunt-tipped hollow tube being inserted into the puncture needle, a through hole being provided on the side of one end of the blunt head of the blunt hollow tube; an end of the blunt hollow tube away from the blunt head extends into the syringe connector, and a rebound device for elastically supporting the blunt hollow tube is provided in the syringe connector.

[0006] Furthermore, the blunt tip of the blunt hollow tube has a hemispherical structure.

[0007] Furthermore, the outer diameter of the blunt hollow tube is smaller than the inner diameter of the puncture needle.

[0008] Furthermore, the length of the blunt hollow tube is greater than the length of the puncture needle. When the rebound device is in a non-compressed state, the blunt head of the blunt hollow tube protrudes to the outside of the puncture needle, so that the through hole is located outside the puncture needle. When the rebound device is in a compressed state, the blunt head of the blunt hollow tube is retracted into the inside of the puncture needle.

[0009] Furthermore, the rebound device includes a first spring stopper, a second spring stopper and a spring, the first spring stopper and the second spring stopper are arranged in the syringe connector, the spring is connected between the first spring stopper and the second spring stopper, the end of the blunt hollow tube is fixedly connected to the first spring stopper, and the first spring stopper and the second spring stopper are penetrated by a channel communicating with the blunt hollow tube.

[0010] Furthermore, the first spring stopper is a striking color block structure.

[0011] In order to solve the above technical problems, the utility model also provides an injection, which adopts the above-mentioned anti-overpenetration percutaneous tracheotomy puncture needle, characterized in that it includes a syringe, the syringe connector is connected to the end of the syringe, and during percutaneous tracheotomy puncture, physiological saline is provided in the syringe.

[0012] The utility model proposes a percutaneous tracheotomy puncture needle that prevents over-puncture, and has the beneficial effects of: the utility model has a simple structure, is easy to operate, reduces the probability of over-puncture, and adopts a disposable structure to avoid repeated use and cross infection. Specifically: adding a reboundable blunt hollow needle inside a conventional puncture needle prevents over-puncture without hindering conventional puncture. The problem of over-puncture of the puncture needle is solved, and the safety of puncture is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the interior of the end of a blunt-ended hollow tube of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of the interior of the rebound device in the utility model;

[0018] Figure 5 It is a schematic diagram of percutaneous tracheotomy puncture in the utility model;

[0019] The markings in the figure are: 1. syringe connector; 2. puncture needle; 3. blunt hollow tube; 31. through hole; 4. first spring stopper; 5. second spring stopper; 6. spring; 7. channel; 8. syringe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The structural features of the utility model are now described in detail with reference to the accompanying drawings of the specification.

[0024] Example 1

[0025] See also Figure 1-Figure 4 A percutaneous tracheotomy puncture needle to prevent over-penetration includes a syringe connector 1 with a transparent structure. The syringe connector 1 with a transparent structure facilitates viewing changes in the internal structure. The syringe connector 1 is used to connect a syringe 8. A puncture needle 2 is fixedly connected to the end of the syringe connector 1. A blunt-tipped hollow tube 3 is inserted into the puncture needle 2. A through hole 31 is provided on the side of one end of the blunt head of the blunt hollow tube 3. The blunt head of the blunt hollow tube 3 is a hemispherical structure. The outer diameter of the blunt hollow tube 3 is smaller than the inner diameter of the puncture needle 2. When the blunt head of the blunt hollow tube 3 is blocked by foreign objects, it will shrink into the puncture needle 2.

[0026] The end of the blunt hollow tube 3 away from the blunt tip extends into the syringe connector 1, and a rebound device for elastically supporting the blunt hollow tube 3 is provided in the syringe connector 1. The length of the blunt hollow tube 3 is greater than the length of the puncture needle 2. When the rebound device is in a non-compressed state, the blunt tip of the blunt hollow tube 3 protrudes outside the puncture needle 2, so that the through hole 31 is located outside the puncture needle 2. When the rebound device is in a compressed state, the blunt tip of the blunt hollow tube 3 shrinks into the inside of the puncture needle 2. The rebound device includes a first spring stopper 4, a second spring stopper 5 and a spring 6. The first spring stopper 4 and the second spring stopper 5 are arranged in the syringe connector 1, and the spring 6 is connected between the first spring stopper 4 and the second spring stopper 5. The end of the blunt hollow tube 3 is fixedly connected to the first spring stopper 4, and the first spring stopper 4 and the second spring stopper 5 are penetrated by a channel 7 that communicates with the blunt hollow tube 3. In order to facilitate the observation of the rebound of the first spring stopper 4, the first spring stopper 4 can be set to a striking color block structure, such as red.

[0027] The utility model of the anti-overpenetration percutaneous tracheotomy puncture needle has a simple structure and is easy to operate. On the one hand, it can reduce the probability of overpenetration. On the other hand, it adopts a disposable structure during use to avoid repeated use and cross infection.

[0028] See also Figure 5 Specifically, when in use, the doctor holds the syringe 8 and aligns the needle tip of the puncture needle 2 with the puncture point for puncture. During the puncture process, the blunt head part of the blunt hollow tube 3 is subjected to force and will shrink into the interior of the puncture needle 2. At this time, the sharp needle tip part of the puncture needle 2 can pierce the skin surface and enter the interior. At this time, the first spring stopper 4 inside the rebound device moves backward, and the spring 6 is compressed. When the puncture needle 2 penetrates the tracheal wall, the blunt front end of the blunt hollow tube 3 is not subjected to force and will rebound under the action of the spring 6. At this time, the first spring stopper 4 moves and resets. Whether the spring 6 is reset successfully can be observed through the transparent syringe connector 1. If reset successfully, it means that the puncture has been successful.

[0029] Example 2

[0030] The present embodiment also provides an injection, which adopts an anti-overpenetration percutaneous tracheotomy puncture needle, including a syringe 8, a syringe connector 1 connected to the end of the syringe 8, and during percutaneous tracheotomy puncture, physiological saline is provided in the syringe 8. During puncture, when the puncture needle 2 penetrates the tracheal wall, the blunt front end of the blunt hollow tube 3 is not subjected to force, and it will rebound under the action of the spring 6, and the first spring stopper 4 moves to reset. At this time, the air in the trachea enters the syringe 8 through the through hole 31 on the blunt hollow tube 3 to form bubbles. Once bubble production is observed, it means that the puncture has been successful.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-overpenetration percutaneous tracheotomy puncture needle, comprising a syringe connector (1) of a transparent structure, the end of the syringe connector (1) being fixedly connected to a puncture needle (2), characterized in that: A blunt-tipped hollow tube (3) is inserted into the puncture needle (2), and a through hole (31) is provided on the side of one end of the blunt tip of the blunt-tipped hollow tube (3); One end of the blunt-headed hollow tube (3) away from the blunt head extends into the syringe connector (1), and a rebound device for elastically supporting the blunt-headed hollow tube (3) is provided in the syringe connector (1).

2. The anti-overpenetration percutaneous tracheotomy puncture needle according to claim 1, characterized in that: The blunt head of the blunt-head hollow tube (3) is in a hemispherical structure.

3. The anti-overpenetration percutaneous tracheotomy puncture needle according to claim 1, characterized in that: The outer diameter of the blunt-end hollow tube (3) is smaller than the inner diameter of the puncture needle (2).

4. The anti-overpenetration percutaneous tracheotomy puncture needle according to claim 1, characterized in that: The length of the blunt-tipped hollow tube (3) is greater than the length of the puncture needle (2). When the rebound device is in a non-compressed state, the blunt tip of the blunt-tipped hollow tube (3) protrudes outside the puncture needle (2), so that the through hole (31) is located outside the puncture needle (2). When the rebound device is in a compressed state, the blunt tip of the blunt-tipped hollow tube (3) is retracted into the interior of the puncture needle (2).

5. The anti-overpenetration percutaneous tracheotomy needle according to any one of claims 1 to 4, characterized in that: The rebound device comprises a first spring stopper (4), a second spring stopper (5) and a spring (6); the first spring stopper (4) and the second spring stopper (5) are arranged in the syringe connector (1); the spring (6) is connected between the first spring stopper (4) and the second spring stopper (5); the end of the blunt hollow tube (3) is fixedly connected to the first spring stopper (4); and the first spring stopper (4) and the second spring stopper (5) are penetrated by a channel (7) communicating with the blunt hollow tube (3).

6. The anti-overpenetration percutaneous tracheotomy puncture needle according to claim 5, characterized in that: The first spring stopper (4) is a striking color block structure.

Images