Thoracocentesis application suite for field operations
By designing the combination of trocar, one-way air valve and hard mesh protection net, the two-way ventilation and fixation difficulties of the thoracic puncture needle in the battlefield environment are solved, and the continuous discharge and fixation of the chest gas of the injured is achieved, and the treatment effect and mobility convenience are improved.
Patent Information
- Application Number
- CN202422305949.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the battlefield environment, existing chest puncture needles have problems such as bidirectional ventilation that causes external air to enter the chest cavity, is difficult to fix and is easily blocked by clothing coverings, affecting the treatment effect and actions of the injured.
A field chest puncture patch kit is designed, including a trocar, a one-way air valve and a hard mesh protection mesh, combined with a gel patch sheet to ensure that the gas is discharged in one direction and prevent external air from entering, making it easy to fix and not easily blocked by the clothing covering.
The continuous discharge of the injured's chest gas is achieved, the risk of lung tissue damage is reduced, the possibility of fixation difficulties and clothing blockage is reduced, the movement limitation of the injured is reduced, and the convenience and effectiveness of treatment is improved.
Smart Images
Figure CN223054526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, namely a thoracentesis dressing kit for field use. Background Art
[0002] In the prior art, on the battlefield, tension pneumothorax is an important cause of death of the wounded, accounting for 33%. At present, puncturing and exhausting gas with a thoracentesis needle is the main method for the emergency treatment of tension pneumothorax. Its disadvantages are that after the puncture and exhaust of gas are successful, since the puncture needle is two-way ventilated, external air may enter the thoracic cavity. At the same time, the exposed part is relatively long, resulting in difficult fixation. If clothes are covered, etc., it will lead to difficult exhaust, bringing inconvenience to the movement or treatment of the wounded. Content of the Utility Model
[0003] The purpose of the utility model is to provide a thoracentesis dressing kit for field use with convenient fixation and unobstructed exhaust in view of the above deficiencies.
[0004] The technical solution of the utility model is: a thoracentesis dressing kit for field use, including a puncture trocar and a one-way air valve; the puncture trocar is composed of a cannula and a hollow stylet inserted into the cannula; the tail of the cannula is provided with an outwardly protruding disc-shaped needle handle, and the hollow stylet is provided with a needle handle for easy gripping; the one-way air valve is used for fittingly connecting with the disc-shaped needle handle of the cannula, and is characterized in that a suspended rigid mesh protection net is added to the air outlet side of the one-way air valve, and the rigid mesh protection net is hollowly connected to the air outlet side of the one-way air valve through a plurality of feet; in addition, a one-way air valve dressing is provided, and the one-way air valve dressing includes a valve layer piece and a gel dressing layer piece adhered to the valve layer piece. There is a gel layer on the gel dressing layer piece, a release film is provided on the gel layer, a round hole passing through the cannula is provided in the center of the gel layer, a gas passing round hole is provided in the center of the valve layer piece, a round one-way air valve is pasted in the middle, and the periphery is all a pasteable part and is provided with a release film.
[0005] In the above solution:
[0006] The rigid mesh protection net is hollowly connected to the air outlet side of the one-way air valve through three feet.
[0007] The puncture trocar, the valve layer piece and the gel dressing layer piece are independent components combined during use.
[0008] The advantages of the present utility model are as follows: 1. By using a soft cannula needle, the risk of damage to lung tissue after successful puncture can be reduced. 2. The gel patch layer can not only assist in fixing the cannula needle, help maintain airtightness, but also relieve the compression of the cannula needle on the skin. 3. The one-way air valve can ensure that gas continuously discharges from the thoracic cavity and prevent external air from entering the thoracic cavity. The combination with the patch can achieve continuous exhaust and minimize the limitation of the wounded's activities. 4. Adding a layer of rigid mesh protection net on the general exhaust valve can reduce the possibility of the exhaust hole being blocked by coverings such as clothing, ensuring the continuity of exhaust.
[0009] The embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings. Description of the Drawings
[0010] Figure 1 is a structural schematic diagram of the present utility model.
[0011] Figure 2 is a structural schematic diagram of the one-way air valve patch.
[0012] Figure 3 is a structural schematic diagram showing the rigid mesh protection net on the air outlet side of the one-way air valve. Specific Embodiments
[0013] See Figure 1 -3, the component names are as follows: cannula 1, hollow needle core 2, one-way air valve 3, disc-shaped needle handle 4, needle handle 5, rigid mesh protection net 6, air valve layer 7, gel patch layer 8, gel layer 9, round hole 10.
[0014] See Figure 1 -3, a thoracentesis patch kit for field use, including a puncture cannula needle and a one-way air valve 3; the puncture cannula needle is composed of a cannula 1 and a hollow needle core 2 inserted into the cannula 1; the tail of the cannula 1 is provided with an outwardly protruding disc-shaped needle handle 4, and the hollow needle core 2 is provided with a needle handle 5 for easy gripping; the one-way air valve 3 is used for fitting and connecting with the disc-shaped needle handle 4 of the cannula. A layer of suspended rigid mesh protection net 6 is added on the air outlet side of the one-way air valve 3, and the rigid mesh protection net 6 is connected to the hollowed-out part on the air outlet side of the one-way air valve through three feet; in addition, a one-way air valve patch is provided, which includes an air valve layer 7 and a gel patch layer 8 adhered to the air valve layer. The gel patch layer 8 has a gel layer 9 (on the side in contact with the skin), the gel layer 9 is provided with a release film, the center of the gel layer 9 has a round hole 10 passing through the cannula, the center of the air valve layer 7 has a gas passing round hole, a circular one-way air valve 3 is pasted in the middle, and the periphery is all pasteable and provided with a release film. The puncture cannula needle, the air valve layer 7 and the gel patch layer 8 are independent components combined during use.
[0015] Puncture cannula needle: composed of a cannula 1 and a hollow needle core 2.
[0016] Cannula 1: Made of PU, with a soft structure, a specification of 14G, a length of 7.5 cm, and a disc-shaped needle handle 4 with a radius of 1 cm at the tail.
[0017] Hollow needle core 2: The needle is 7.6 cm long, equipped with a needle handle 5 for easy gripping, and the needle tail can be connected to a syringe.
[0018] One-way valve dressing: See Figure 2 , including a gel dressing layer 8 and a valve layer 7, which are pre-connected at the head side.
[0019] Gel dressing layer 8: 10×10 cm, all of which are adhesive parts and are provided with a release film. There is a 4×4 cm gel layer 9 in the middle, and a circular hole 10 with a diameter of 5 mm is reserved in the center of the gel. The circular hole 10 is covered with a dressing film.
[0020] Valve layer 7: 6×6 cm, with a circular one-way valve 3 with a diameter of 2 cm and a thickness of about 8 mm in the middle. The outer periphery is all adhesive parts and is provided with a release film.
[0021] One-way valve 3: Made of PE material. ① Intake side: The outer periphery of 2 mm remains smooth so that it can fit tightly with the cannula 1 to increase airtightness. ② Exhaust side: See Figure 3 , a layer of rigid mesh protection net 6 is added at a distance of 1 mm outside the original valve. The rigid mesh protection net 6 is connected to the valve through three feet (figure omitted) to ensure that the exhaust port will not be blocked by coverings such as clothes. The middle mesh surface of the rigid mesh protection net 6 is triangular, not limited to this, as long as it is breathable. Figure 3 The middle mesh surface is triangular, not limited to this, as long as it is breathable.
[0022] Usage method:
[0023] Positioning and puncture: ① Generally, select the second intercostal space at the midclavicular line on the diseased side as the puncture point. Align the circular hole 10 in the center of the gel dressing layer 8 with the puncture positioning point, and paste it tightly after removing the release film. ② Connect the puncture cannula needle with a syringe, maintain negative pressure and puncture through the center hole. After the air in the thoracic cavity is aspirated (if there is no syringe, comprehensive judgment such as hearing can be used to determine whether there is gas discharge), remove the needle core to discharge the air in the thoracic cavity, and then slowly insert the remaining cannula 1 so that the disc-shaped needle handle 4 of the cannula is close to the gel dressing layer 8.
[0024] Cover the valve dressing: ① Align the one-way valve 3 with the opening of the cannula 1 and check to ensure normal exhaust. ② Remove the release film on the dressing, paste and fix it so that the outer periphery of the one-way valve 3 fits tightly with the disc-shaped needle handle 4 of the cannula, and press the valve layer 7 and the gel dressing layer 8 together.
[0025] Check exhaust again: The patient can be instructed to take a deep breath to check whether the exhaust is unobstructed, and closely monitor the respiratory changes of the wounded.
[0026] The above description is only a specific implementation mode of the present utility model, and various examples do not constitute a limitation to the substantial content of the present utility model.
Claims
1. A thoracentesis dressing kit for field use, comprising a puncture trocar and a one-way air valve (3); the puncture trocar is composed of a cannula (1) and a hollow needle core (2) inserted into the cannula (1); the tail of the cannula (1) is provided with an outwardly protruding disc-shaped needle handle (4), and the hollow needle core (2) is provided with a needle handle (5) for easy gripping; the one-way air valve (3) is used for fitting connection with the disc-shaped needle handle (4) of the cannula, and is characterized in that A layer of suspended rigid mesh protection net (6) is added to the outlet side of the one-way air valve (3). The rigid mesh protection net (6) is connected to the hollowed-out part of the outlet side of the one-way air valve through multiple feet. Additionally, a one-way air valve patch is provided. The one-way air valve patch includes a valve layer piece (7) and a gel patch layer piece (8) bonded to the valve layer piece. There is a gel layer (9) on the gel patch layer piece (8). A release film is provided on the gel layer (9). There is a round hole (10) passing through a sleeve in the center of the gel layer (9). There is an air passing round hole in the center of the valve layer piece (7). A round one-way air valve (3) is pasted in the middle. The outer periphery is all pasteable and is provided with a release film.
2. The field thoracentesis dressing kit according to claim 1, characterized in that The rigid mesh protection net (6) is connected to the hollowed-out part of the outlet side of the one-way air valve (3) through three feet.
3. A field thoracentesis dressing kit according to claim 1 or 2, characterized in that The puncture trocar, the valve layer piece (7) and the gel patch layer piece (8) are independent components combined during use.