Sleeve type thoracocentesis needle suitable for tension pneumothorax

By designing a cannula-type thoracentesis needle with a whistle, vibrating pad, graduated lines, and an air bladder, the accuracy and safety issues of cannula-type thoracentesis needles in emergency situations have been solved, enabling rapid and effective pneumothorax treatment and infection control.

CN224269408UActive Publication Date: 2026-05-26THE 905TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY NAVY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 905TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY NAVY
Filing Date
2025-01-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cannula-type thoracentesis needles are difficult to use quickly and accurately to treat pneumothorax in emergency situations, and may cause damage to the patient's normal lungs and other organs due to improper operation.

Method used

A cannula-type thoracentesis needle was designed, comprising a puncture needle, a hollow tube, a connector, a whistle tube, a vibrating plate, a scale line, and an air bladder. The puncture success is determined by the whistle tube and the vibrating plate, the depth is controlled by the scale line, the air bladder is used for fixation, and sterile cotton is used to reduce the risk of infection and avoid excessive puncture.

Benefits of technology

It enables rapid and precise treatment of pneumothorax, reduces the risk of damage to the patient's normal tissues, and lowers the chance of infection through disinfection measures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The sleeve type thoracic cavity puncture needle comprises a puncture needle body and a hollow tube, the puncture needle body is placed in the hollow tube, the upper end of the puncture needle body is fixedly connected with a connector, the interior of the connector is fixedly connected with a whistle tube, the whistle tube is aligned with the center of the puncture needle body, and a whistle hole is formed in the side surface of the whistle tube. A vibration piece is arranged on one side of the whistle hole and fixedly connected with the inner wall of the whistle pipe, the puncture needle is sleeved with a sleeve, the upper end of the sleeve is fixedly connected with a sleeve head, the sleeve head is buckled below the connector, the upper end of the hollow pipe is buckled with a pipe cap, the side surface of the pipe cap is fixedly connected with a hanging plate, and the upper end of the pipe cap is fixedly connected with a plastic plate. The problem that when an existing sleeve type thoracocentesis needle is used in an emergency, pneumothorax cannot be rapidly and accurately treated is solved, and meanwhile the situation that normal lungs and other organ tissues of a patient are injured due to the fact that medical staff puncture too deep in the operation process is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of thoracentesis needle technology, specifically a cannula-type thoracentesis needle suitable for tension pneumothorax. Background Technology

[0002] A thoracentesis cannula is a medical device primarily used for thoracentesis. Its main function is puncture, and it plays a crucial role in tension pneumothorax. The cannula is inserted into the pleural cavity and then into the lungs to remove air. It is commonly used in the treatment of pneumothorax.

[0003] Existing cannula-type thoracentesis needles have certain shortcomings in use. Firstly, the existing cannula-type thoracentesis needles have a relatively simple structure, usually consisting of a puncture needle, a connector, and a cannula. Therefore, in emergency situations, medical staff need to slowly insert the cannula-type thoracentesis needle into the patient's chest cavity to locate the pneumothorax, which cannot quickly and accurately treat tension pneumothorax. Sometimes, due to excessive speed, the needle may penetrate too deep into the patient's chest cavity, causing damage to normal lung and other tracheal tissues. Therefore, we propose a cannula-type thoracentesis needle suitable for tension pneumothorax. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a cannula-type thoracentesis needle suitable for tension pneumothorax. This solves the problem that existing cannula-type thoracentesis needles cannot quickly and accurately treat pneumothorax in emergency situations, while also avoiding damage to the patient's normal lungs and other organs and tissues due to excessive puncture during medical personnel's operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cannula-type thoracentesis needle suitable for tension pneumothorax, comprising a puncture needle and a hollow tube. The puncture needle is placed inside the hollow tube. A connector is fixedly connected to the upper end of the puncture needle, and a whistle is fixedly connected inside the connector. The whistle is aligned with the center of the puncture needle, and a whistle hole is provided on the side surface of the whistle hole. A vibrating plate is provided on one side of the whistle hole, and the vibrating plate is fixedly connected to the inner wall of the whistle. A cannula is fitted over the outside of the puncture needle, and a sleeve is fixedly connected to the upper end of the cannula. The sleeve is snapped onto the lower part of the connector. A tube cap is snapped onto the upper end of the hollow tube, and a hanging plate is fixedly connected to the side surface of the tube cap. A plastic plate is fixedly connected to the upper end of the tube cap.

[0006] Preferably, the side surface of the sleeve is engraved with multiple sets of scale lines, and an airbag is fixedly connected to the lower end of the sleeve, the airbag being in communication with the sleeve.

[0007] Preferably, the hollow tube is filled with sterilizing cotton, and the sterilizing cotton has sterilization holes inside.

[0008] Preferably, a pre-installed airbag is installed at the upper inner end of the cap, and a tapered tube is fixedly connected to the upper surface of the pre-installed airbag.

[0009] Preferably, the side surface of the hollow tube is fixedly connected with a first scale line and a second scale line, and the second scale line is located above the first scale line.

[0010] Preferably, the hollow tube is made of stainless steel, while the sleeve is made of polyethylene.

[0011] This invention provides a cannula-type thoracentesis needle suitable for tension pneumothorax. Compared with the prior art, it has the following advantages:

[0012] 1. The sound produced when the puncture needle is inserted into the puncture site is coordinated with the whistling tube and the vibrating plate inside the whistling tube and the whistling hole on the side surface of the whistling tube. This allows medical staff to quickly and accurately determine whether the puncture was successful, thus enabling rapid and effective treatment of pneumothorax. Furthermore, the graduations on the side surface of the cannula prevent damage to the patient's normal lungs and other organs caused by excessive puncture during the operation.

[0013] 2. The use of sterile cotton inside the hollow tube and the sterilization holes inside the cotton facilitates the sterilization of the puncture needle and cannula, thereby reducing the risk of infection for patients during puncture. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the puncture needle;

[0016] Figure 3 A schematic diagram of the hollow tube and its cap;

[0017] Figure 4 This is a schematic diagram of the internal structure of a hollow tube.

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the cap;

[0019] Figure 6 This is a schematic diagram of the dynamic structure of this utility model in use.

[0020] In the diagram: 1. Puncture needle; 101. Connector; 102. Whistle tube; 103. Vibrating pad; 104. Whistle hole; 2. Cannula; 201. Head; 202. Scale line; 203. Airbag; 3. Hollow tube; 301. First scale line; 302. Sterilizing cotton; 303. Sterilization hole; 304. Second scale line; 4. Tube cap; 401. Plastic plate; 402. Hanging plate; 403. Conical tube; 404. Pre-loaded airbag. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a cannula-type thoracentesis needle suitable for tension pneumothorax, including a puncture needle 1 and a hollow tube 3. The puncture needle 1 is placed inside the hollow tube 3. A connector 101 is fixedly connected to the upper end of the puncture needle 1, and a whistle tube 102 is fixedly connected inside the connector 101. The whistle tube 102 is aligned with the center of the puncture needle 1, and a whistle hole 104 is opened on the side surface of the whistle tube 102. A vibrating plate 103 is provided on one side of the whistle hole 104, and the vibrating plate 103 is fixedly connected to the inner wall of the whistle tube 102. A cannula 2 is sleeved on the outside of the puncture needle 1, and a sleeve head 201 is fixedly connected to the upper end of the cannula 2. The sleeve head 201 is snapped below the connector 101. A tube cap 4 is snapped onto the upper end of the hollow tube 3, and a hanging plate 402 is fixedly connected to the side surface of the tube cap 4. A plastic plate 401 is fixedly connected to the upper end of the tube cap 4.

[0023] As a technical optimization of this utility model, the side surface of the cannula 2 is engraved with multiple sets of scale lines 202, and the lower end of the cannula 2 is fixedly connected to an airbag 203. The airbag 203 is connected to the cannula 2. Through the scale lines 202 on the side surface of the cannula 2, medical staff can easily know the depth of the puncture needle 1, and the airbag 203 can easily fix the cannula 2 in the patient's body.

[0024] As a technical optimization of this utility model, the hollow tube 3 is filled with sterile cotton 302, and the sterile cotton 302 has a sterilization hole 303. The sterilization hole 303 and the sterile cotton 302 can be used to conveniently sterilize the puncture needle 1 and the cannula 2, thereby reducing the risk of infection for the patient.

[0025] As a technical optimization of this utility model, a pre-installed airbag 404 is installed at the upper end of the inner part of the cap 4, and a tapered tube 403 is fixedly connected to the upper surface of the pre-installed airbag 404. A first scale line 301 and a second scale line 304 are fixedly connected to the side surface of the hollow tube 3, and the second scale line 304 is located above the first scale line 301. In use, first align the upper end of the hollow tube 3 with the cap 4, then snap the cap 4 onto the upper end of the hollow tube 3, and push the hollow tube 3 so that the lower end of the cap 4 is aligned with the second scale line 301. When the degree line 304 is aligned, the tapered tube 403 will push open the plastic plate 401 and be exposed outside the tube cap 4. Then, the tapered tube 403 is connected to the sleeve head 201, and the hollow tube 3 is pushed again to push the gas inside the pre-installed airbag 404 into the sleeve 2. The connection between the sleeve 2 and the pre-installed airbag 404 is fixedly provided with a pipe connected to the pre-installed airbag 404. The gas in the pre-installed airbag 404 enters the airbag 203 through the pipe, and then fills and inflates the airbag 203.

[0026] As a technical optimization of this utility model, the hollow tube 3 is made of stainless steel, while the sleeve 2 is made of polyethylene. The polyethylene sleeve 2 can play a pressure-resistant role, thereby preventing the sleeve 2 from being squeezed and deformed after being inserted into the patient, thus hindering the patient's lung gas from being discharged.

[0027] In use, this invention first opens the cap 4 at the top of the hollow tube 3, then removes the puncture needle 1 and cannula 2 from inside the hollow tube 3. Next, the sterile cotton 302 is removed, and the puncture needle 1 and cannula 2 are inserted into the sterilization hole 303 to sterilize them. Then, the cannula 2 is placed over the side surface of the puncture needle 1. The medical staff holds the puncture needle 1 like a pen, inserting the needle tip into the pleural cavity at a 90-degree angle to the chest wall. When the puncture needle 1 accurately punctures the patient's pneumothorax, the air in the patient's body will be blown out through the puncture needle 1. As the airflow passes through the whistle 10 inside the connector 101... At time 2, a sound will be emitted through the vibrating plate 103 and the whistle hole 104 to confirm successful puncture. Then, the puncture needle 1 is pulled out from the inside of the cannula 2. After that, the medical staff aligns the hollow tube 3 with the cap 4 and pushes the hollow tube 3 so that the lower end of the cap 4 is aligned with the second scale line 304. At this time, the tapered tube 403 will push open the plastic plate 401 and be exposed outside the cap 4. Then, the tapered tube 403 is connected to the cannula head 201, and the hollow tube 3 is pushed again to push the gas inside the pre-filled air bag 404 into the inside of the cannula 2. Then, the air bag 203 is filled and expanded, thereby fixing the cannula 2 in the patient's body.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cannula thoracostomy needle suitable for tension pneumothorax, comprising a puncture needle (1) and a cannula (3), characterized in that: The puncture needle (1) is placed inside the hollow tube (3). A connector (101) is fixedly connected to the upper end of the puncture needle (1), and a whistle tube (102) is fixedly connected inside the connector (101). The whistle tube (102) is aligned with the center of the puncture needle (1), and a whistle hole (104) is opened on the side surface of the whistle tube (102). A vibrating plate (103) is provided on one side of the whistle hole (104), and the vibrating plate (103) is aligned with the center of the puncture needle (1). The inner wall of the whistle tube (102) is fixedly connected, the outside of the puncture needle (1) is fitted with a sleeve (2), and the upper end of the sleeve (2) is fixedly connected with a sleeve head (201). The sleeve head (201) is snapped below the connector (101). The upper end of the hollow tube (3) is snapped with a tube cap (4), and the side surface of the tube cap (4) is fixedly connected with a hanging plate (402). The upper end of the tube cap (4) is fixedly connected with a plastic plate (401).

2. A cannula trocar for tension pneumothorax according to claim 1, characterized in that: The side surface of the sleeve (2) is engraved with multiple sets of scale lines (202), and the lower end of the sleeve (2) is fixedly connected to an airbag (203), which is in communication with the sleeve (2).

3. A cannula trocar for tension pneumothorax according to claim 1, characterized in that: The hollow tube (3) is filled with disinfectant cotton (302), and disinfection holes (303) are opened inside the disinfectant cotton (302).

4. The trocar needle for tension pneumothorax according to claim 1, wherein: The upper part of the inner end of the cap (4) is equipped with a pre-installed airbag (404), and a tapered tube (403) is fixedly connected to the upper surface of the pre-installed airbag (404).

5. The trocar needle for tension pneumothorax according to claim 1, wherein: The hollow tube (3) has a first scale line (301) and a second scale line (304) fixedly connected to its side surface, and the second scale line (304) is located above the first scale line (301).

6. A cannula trocar for tension pneumothorax according to claim 1, characterized in that: The hollow tube (3) is made of stainless steel, while the sleeve (2) is made of polyethylene.