External needle attaching type flow-speed-adjustable Y-shaped closed puncture device

Abstract

The invention discloses an external needle fitting type flow-speed-adjustable Y-shaped closed puncture device, and belongs to the field of medical instruments, the device adopts an integrated design of an external needle and a drainage tube, the complex steps of using a guide wire and a skin expander in the traditional operation are avoided, the drainage tube is synchronously placed in the puncture process, and the puncture efficiency is improved. The operation process is obviously simplified; and the infection risk is reduced. The flow speed adjusting device flexibly controls the flow speed of liquid through a Robert clamp, is simple in design and convenient to operate, and can effectively reduce complications caused by too high flow speed. The Y-shaped drainage tube structure achieves separation of the drainage outlet and the liquid medicine injection opening, cross contamination is prevented, and the treatment safety of a patient is improved through reliable leakproofness and anti-infection capacity. The device integrates operation simplification, flexible regulation and control and efficient sealing, is suitable for clinical scenes such as drainage of pleural cavity, abdominal cavity and pericardial effusion, and has remarkable innovativeness and wide clinical application value.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular provides an external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device. Background Art

[0002] In modern medicine, puncture and drainage are widely used in clinical treatments such as pleural, abdominal and pericardial effusions. Especially in the treatment of diseases such as effusions, pneumothorax, and chest infections, puncture and drainage has become a common and effective treatment method. The traditional puncture and drainage method usually includes the following steps: first puncture with a puncture needle, then place a guide wire, remove the puncture needle, expand the skin with a skin expander, and then place a drainage tube along the guide wire. Each step needs to be operated independently, and each operation requires precise operating techniques and tools, which not only increases the patient's pain, but also increases the difficulty and time of the operation.

[0003] However, existing puncture drainage devices generally have the following problems:

[0004] 1. Complex operation: The operation process of existing devices is cumbersome and usually requires multiple steps, including puncture, guidewire placement, skin expansion, drainage tube placement, etc. The operation of each step not only increases the patient's discomfort, but also increases the time and complexity of the operation.

[0005] 2. Unadjustable flow rate: Most existing drainage devices have a fixed flow rate and cannot be dynamically adjusted according to the patient's condition and drainage needs. Fixed flow rate may cause drainage to be too fast or too slow, which in turn affects the patient's recovery speed or causes other complications.

[0006] 3. Poor airtightness: The existing drainage devices have poor airtightness at the connection points, which may cause liquid reflux or gas intrusion, leading to serious complications such as infection, affecting the patient's treatment effect and safety.

[0007] 4. Single function: Most existing devices only have drainage function and cannot complete multiple operations such as drug injection at the same time, resulting in the need for multiple devices or steps to complete different treatments, which increases the complexity of medical operations and treatment costs.

[0008] These problems not only affect the therapeutic effect of puncture drainage, but also increase the risk of infection during the operation. In order to improve the efficiency of treatment, simplify the operation steps and ensure patient safety, a new type of drainage device is urgently needed that can simplify the operation while having flexible flow rate adjustment function and excellent airtightness.

[0009] Compared with previous patents:

[0010] There are many patents related to puncture drainage devices in the prior art, such as:

[0011] Blood collection device with distal balloon mechanism JP2023501823A: This patent discloses a device for producing punctures in tissues, including a slender member and an inflation feature, which can expand the puncture area or fix the device in a specific structure after inflation. Although the device has an inflation function that can help fix the puncture site, it still relies on traditional puncture steps and lacks a flow rate adjustment function, and cannot flexibly adjust the drainage rate according to the different needs of patients. In addition, the inflatable structure may bring additional complexity and inconvenience during treatment.

[0012] Puncture needle, puncture device and blood collection device WO2020075735A1: This patent provides a puncture needle that reduces puncture resistance by changing the structure of the needle body. This design makes the puncture process smoother, but the patent does not solve the problems of non-adjustable flow rate, poor airtightness and cumbersome operation steps in existing puncture and drainage devices. Its improvements are mainly focused on needle body design and reducing puncture resistance, and do not involve flow rate control or multi-functional integration during drainage.

[0013] Puncture system JP2020540538: This patent provides a puncture system, including an inner and outer tubular structure and a puncture needle. The inner tubular body can move longitudinally relative to the outer tubular body, and the puncture needle can pass through the puncture lumen of the inner tubular body. This design has a certain degree of flexibility, but its operation process is still relatively complicated, and it mainly focuses on the relative movement of the puncture needle and the inner and outer tubular bodies. It does not propose how to simplify the operating steps in the drainage process or improve the flexibility of flow rate regulation. In addition, the precise adjustment of the flow rate and the airtightness during the puncture process have not been solved.

[0014] Compared with the prior art, the present invention eliminates the complicated steps of using guide wires and skin expanders in traditional technologies through the innovative design of external needle-fitted drainage tubes, simplifies the operation process, greatly shortens the operation time and reduces trauma to patients. The flow rate regulating device uses a rotary pressing method to adjust the drainage rate, which is not only easy to operate, but also can flexibly adjust the flow rate according to the patient's condition, avoiding the adverse consequences of fixed flow rates in the prior art. In addition, the present invention adopts a Y-shaped drainage tube structure, which can effectively isolate the drug solution and the drainage fluid to avoid cross contamination, and enhances the airtightness and reduces the risk of infection.

[0015] Therefore, the present invention not only makes significant innovations in the simplification of the puncture device, flow rate regulation, airtightness and anti-infection ability, but also solves many problems existing in the prior art and has higher clinical application value. Summary of the invention

[0016] The present invention provides an external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device. The core innovation of the device is that it simplifies the traditional puncture and drainage process, reduces patient trauma, and realizes flexible adjustment of the flow rate, thereby improving the airtightness and anti-infection ability of the device. The device is widely used in the treatment of pleural, abdominal, and pericardial effusion drainage in clinical practice.

[0017] The technical solution of the present invention is as follows:

[0018] An external needle fitting flow rate adjustable Y-shaped closed puncture device, comprising an external needle, a drainage tube and a flow rate regulating clip;

[0019] The external needle comprises a first needle body, a second needle body and a fixing clip, the first needle body and the second needle body are both semi-cylindrical, and are matched and combined to form the external needle as a whole, a first connecting ear is arranged on the side of the first needle body, a buckle protrusion is arranged on the first connecting ear, a second connecting ear is arranged on the side of the second needle body, a buckle hole matching with the buckle protrusion is arranged on the second connecting ear, and the fixing clip is arranged on the outside of the first connecting ear and the second connecting ear for clamping and fixing;

[0020] The drainage tube comprises a first tube body, a second tube body and a Y-shaped drainage head which are arranged in sequence, and the external needle is connected and installed on the outer side of the first tube body;

[0021] The flow rate regulating clip is arranged on the second tube body of the drainage tube.

[0022] In the above technical solution, the first needle body and the second needle body have pointed ends for insertion of the external needle.

[0023] In the above technical solution, the outer diameter of the second needle body is slightly larger than that of the first needle body and the opening angle of the second needle body is slightly larger than that of the first needle body, so that a part of the second needle body wraps the first needle body from the outside to achieve a sealed connection.

[0024] In the above technical solution, preferably, the angle of the second needle opening is greater than 180 degrees.

[0025] In the above technical solution, a restricted portion is provided on the outer wall of the first tube body, and a limiting portion matching the restricted portion is provided on the inner walls of the first needle body and the second needle body, and fixed cooperation between the external needle and the drainage tube is achieved through the cooperation between the restricted portion and the limiting portion.

[0026] In the above technical solution, preferably, the restricted portion and the limiting portion are evenly distributed protrusions.

[0027] In the above technical solution, a drainage hole is provided at the front of the first tube body.

[0028] In the above technical solution, the Y-shaped drainage head has two independent liquid flow channels.

[0029] In the above technical solution, the flow rate regulating clamp is a Robert clamp.

[0030] Beneficial effects:

[0031] 1. Integrated design of external needle and drainage tube

[0032] The external needle and the drainage tube of the present invention adopt an integrated design, so that the puncture needle and the drainage tube can fit closely during the operation, and the external needle can be easily removed after the puncture is completed. Traditional puncture and drainage usually requires puncture with a puncture needle first, then placing a guide wire, then removing the puncture needle, expanding the skin with a skin expander, and finally inserting the drainage tube along the guide wire. This process requires multiple operations, which increases the patient's pain and the complexity of the operation.

[0033] The external needle design of the present invention wraps the drainage tube so that the external needle and the drainage tube can enter the patient's body together during the puncture process. After the puncture is completed, the external needle can be removed, leaving the drainage tube. This design not only simplifies the puncture and drainage process, but also avoids the repeated placement of the guide wire, skin expander and drainage tube, greatly reducing the steps of the operation, shortening the operation time and reducing the trauma of the patient.

[0034] 2. Adjustable flow rate device

[0035] The flow rate regulating device of the present invention adopts Robert clamp, and the flow rate of the liquid in the drainage tube can be flexibly adjusted by simple clamping or loosening operation. Compared with the problem that traditional drainage devices mostly adopt fixed flow rate and cannot be dynamically adjusted according to the specific condition of the patient, the design of the present invention can effectively avoid complications caused by too fast or too slow flow rate, such as thrombosis, fluid accumulation, etc.

[0036] The Robert clamp adjustment mechanism of the present invention is easy to operate, and medical staff can quickly adjust the flow rate according to the patient's condition (such as fluid accumulation and body pressure). The adjustment range is from 0.1 ml to 100 ml per minute, which is suitable for the needs of different types of patients and ensures the safety and efficiency of the drainage process. At the same time, the device has a reliable structure, is easy to use, and is suitable for rapid clinical operation, further improving the treatment efficiency.

[0037] 3. Y-type drainage tube design

[0038] The present invention adopts a Y-shaped drainage tube, which has two independent channels, one for drainage fluid discharge and the other for drug injection. Traditional puncture drainage devices often do not distinguish between drainage and drug injection channels, which easily leads to cross contamination between the two and affects the treatment effect.

[0039] Through the Y-shaped structure, the present invention can effectively isolate the medicine liquid and the drainage fluid, prevent cross contamination, and ensure the purity of the medicine liquid and the safety of the drainage fluid. At the same time, the Y-shaped design is conducive to reducing the flow resistance in the pipeline, improving the drainage effect, and ensuring the smoothness of the liquid flow.

[0040] 4. Sealed structure and anti-infection design

[0041] In order to ensure a sterile environment during the drainage process, the present invention adopts a closed structure, which can prevent liquid reflux or gas intrusion, reducing the risk of infection. Traditional drainage devices often cause air or bacteria to invade due to poor sealing at the connection, increasing the risk of infection, especially during operation.

[0042] The closed design of the present invention can effectively ensure the integrity of the drainage system and avoid infection problems caused by air or bacteria entering the body. This design makes the device have a higher anti-infection ability and improves the safety during the treatment process.

[0043] 5. External needle removal device

[0044] The present invention also introduces an external needle removal device, which is mainly composed of two semi-cylindrical structures, which fit the small ears of the puncture needle and fix the external needle through an elastically wrapped locking device. After the puncture is completed, the external needle can be easily removed by releasing the lock through the removal device, avoiding the cumbersome operation of removing the external needle in traditional devices that requires multiple steps.

[0045] This innovative design ensures the stability of the external needle during the puncture process and avoids displacement or instability of the puncture needle. At the same time, it simplifies the disassembly process and improves the safety and convenience of the operation.

[0046] 6. Superior operation convenience and patient experience

[0047] Through the above-mentioned technological innovations, the present invention significantly simplifies the puncture and drainage operation process, reduces the steps and operation difficulty, and avoids patients from repeatedly undergoing traumatic operations such as puncture and skin expansion. The integrated design of the external needle allows the drainage tube to be in place during puncture. After removing the external needle, the placement of the drainage tube can be completed without additional operation. In addition, the presence of the flow rate regulating device allows medical personnel to adjust the treatment plan in real time according to the patient's condition, which improves the flexibility and personalization of the treatment.

[0048] 7. Wide applicability

[0049] The present invention is applicable to various clinical situations requiring puncture drainage, including but not limited to drainage treatment of diseases such as pleural effusion, peritoneal effusion, pericardial effusion, etc. The simplicity, flexibility and anti-infection of its design make it widely applicable and have good therapeutic effects in clinical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 It is a schematic diagram of the local structure of the external needle;

[0052] Figure 3 It is a schematic diagram of the side view structure of the external needle;

[0053] Figure 4 is a schematic diagram of the first needle structure;

[0054] Figure 5 is a schematic diagram of the second needle structure;

[0055] Figure 6 Schematic diagram of the drainage tube structure;

[0056] Figure 7 Schematic diagram of the flow rate adjustment clamp structure.

[0057] Among them: 1 is an external needle, 1-1 is a first needle body, 1-2 is a second needle body, 1-3 is a first connecting ear, 1-4 is a second connecting ear, 1-5 is a fixing clip, 1-6 is a buckle protrusion, 1-7 is a buckle hole, 1-8 is a tip, 2 is a drainage tube, 2-1 is a first tube body, 2-2 is a second tube body, 2-3 is a Y-type drainage head, and 3 is a flow rate adjustment clip. DETAILED DESCRIPTION

[0058] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. However, the following embodiments are limited to explaining the present invention, and the protection scope of the present invention should include the entire contents of the claims, and through the description of the following embodiments, those skilled in the art can fully implement the entire contents of the claims of the present invention.

[0059] Example

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, an external needle fitting flow rate adjustable Y-shaped closed puncture device comprises an external needle 1, a drainage tube 2 and a flow rate regulating clip 3;

[0061] The external needle 1 comprises a first needle body 1-1, a second needle body 1-2 and a fixing clip 1-5. The first needle body 1-1 and the second needle body 1-2 are both semi-cylindrical and matched to form the external needle 1 as a whole. A first connecting ear 1-3 is arranged on the side of the first needle body 1-1, and a buckle protrusion 1-6 is arranged on the first connecting ear 1-3. A second connecting ear 1-4 is arranged on the side of the second needle body 1-2, and a buckle hole 1-7 matching with the buckle protrusion 1-6 is arranged on the second connecting ear 1-4. The fixing clip 1-5 is arranged on the outside of the first connecting ear 1-3 and the second connecting ear 1-4 for clamping and fixing;

[0062] The drainage tube 2 comprises a first tube body 2-1, a second tube body 2-2 and a Y-shaped drainage head 2-3 which are arranged in sequence, and the external needle 1 is connected and installed on the outer side of the first tube body 2-1;

[0063] The flow rate regulating clip 3 is arranged on the second tube body 2 - 2 of the drainage tube 2 .

[0064] In this embodiment, the first needle body 1 - 1 and the second needle body 1 - 2 have a pointed end 1 - 8 for insertion of the external needle 1 .

[0065] In this embodiment, the outer diameter of the second needle body 1-2 is slightly larger than that of the first needle body 1-1 and the opening angle of the second needle body 1-2 is slightly larger than that of the first needle body 1-1, so that a part of the second needle body 1-2 wraps the first needle body 1-1 from the outside to achieve a sealed connection. The opening angle of the second needle body 1-2 is greater than 180 degrees.

[0066] In this embodiment, the outer wall of the first tube body 2-1 is provided with a restricted portion, and the inner walls of the first needle body 1-1 and the second needle body 1-2 are provided with a limiting portion matching the restricted portion, and the cooperation between the restricted portion and the limiting portion realizes the fixed cooperation between the external needle 1 and the drainage tube 2. The restricted portion and the limiting portion are evenly distributed convex points.

[0067] In this embodiment, a drainage hole is provided at the front of the first tube body 2 - 1 .

[0068] In this embodiment, the Y-shaped drainage head 2 - 3 has two independent liquid flow channels.

[0069] In this embodiment, the flow rate regulating clamp 3 is a Robert clamp.

[0070] A method of using an external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device: the medical staff first completes the puncture through the external needle and places the drainage tube at the predetermined position through the external needle. The external needle can be removed after the puncture is completed, avoiding the multiple operation steps of the guide wire and the skin expander. After the external needle is removed, the drainage tube has been successfully placed. According to the patient's condition, the medical staff adjusts the flow rate by rotating or sliding the valve body to ensure that the speed of drainage or drug injection meets the clinical treatment requirements. After the treatment is completed, the external needle can be easily removed, and the drainage tube can be extended, shortened or removed as needed. Scope of application: This device is suitable for the drainage of pleural, abdominal and pericardial effusions. The flexibility of the flow rate adjustment of this device enables it to adapt to a variety of complex clinical needs and is widely used in various surgical, interventional, emergency and rehabilitation treatment fields.

[0071] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device, characterized in that: It includes an external needle, a drainage tube and a flow rate regulating clip; The external needle comprises a first needle body, a second needle body and a fixing clip, the first needle body and the second needle body are both semi-cylindrical, and are matched and combined to form the external needle as a whole, a first connecting ear is arranged on the side of the first needle body, a buckle protrusion is arranged on the first connecting ear, a second connecting ear is arranged on the side of the second needle body, a buckle hole matching with the buckle protrusion is arranged on the second connecting ear, and the fixing clip is arranged on the outside of the first connecting ear and the second connecting ear for clamping and fixing; The drainage tube comprises a first tube body, a second tube body and a Y-shaped drainage head which are arranged in sequence, and the external needle is connected and installed on the outer side of the first tube body; The flow rate regulating clip is arranged on the second tube body of the drainage tube.

2. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: The first needle body and the second needle body have sharp points for insertion of an external needle.

3. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: The outer diameter of the second needle body is slightly larger than that of the first needle body and the angle of the opening of the second needle body is slightly larger than that of the first needle body, so that a part of the second needle body wraps the first needle body from the outside to achieve a sealed connection.

4. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 3, characterized in that: The angle of the second needle opening is greater than 180 degrees.

5. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: A restricted portion is disposed on the outer wall of the first tube body, and a limiting portion matching the restricted portion is disposed on the inner walls of the first needle body and the second needle body, so that the external needle and the drainage tube are fixedly matched by the cooperation between the restricted portion and the limiting portion.

6. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 5, characterized in that: The restricted portions are evenly distributed convex points.

7. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 5, characterized in that: The limiting parts are evenly distributed convex points.

8. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: A drainage hole is arranged at the front of the first tube body.

9. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: The Y-shaped drainage head has two independent liquid flow channels.

10. The external needle-fitting, flow-rate-adjustable Y-shaped closed puncture device according to claim 1, characterized in that: The flow rate regulating clamp is a Robert clamp.

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