Thoracocentesis drainage device

Abstract

The utility model discloses a thoracocentesis drainage device, which relates to the technical field of medical instruments and comprises a pipe sleeve, a penetrating needle is slidably arranged at one end of the pipe sleeve, a push rod (4) is slidably arranged at the other end of the pipe sleeve, a connecting rod is arranged between the push rod (4) and the penetrating needle, and a force sensor is arranged at one end, close to the penetrating needle, of the connecting rod. A clamping ring is arranged on the surface of the pipe sleeve, an electric control device is arranged in the clamping ring, an electromagnet is arranged on the inner wall of the pipe sleeve, and the electric control device of the clamping ring is in communication connection with the force sensor and the electromagnet; by arranging the push rod, after the penetrating needle drives the pipe sleeve to enter the body, the penetrating needle is driven by lifting the push rod to stretch out and draw back into the pipe sleeve, so that the internal space of the pipe sleeve is enlarged, hydrops in the chest of a patient can effectively flow into the drainage pipe from the pipe sleeve, and the drainage efficiency is improved; a clamping ring and an internal electromagnet are arranged, so that the pushing rod and the pipe sleeve are relatively fixed, and the penetrating needle can smoothly penetrate into the body of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a thoracentesis and drainage device. Background Art

[0002] Thoracentesis refers to the operation of using a sterilized needle to puncture the skin, intercostal tissue, or parietal pleura to enter the pleural cavity. In the clinical work of pulmonary medicine, thoracentesis is a relatively common, convenient and simple diagnostic and treatment method. If the patient's pleural cavity is found to have effusion through examination, the fluid can be extracted through thoracentesis, and various examinations can be performed to find the cause of the disease. For patients with effusion in the pleural cavity, a drainage device is usually needed to drain the effusion.

[0003] Thoracentesis requires a specific drainage device to perform the drainage operation, for example, a thoracic puncture drainage device with announcement number CN213372376U includes a puncture sleeve and a puncture needle arranged inside the puncture sleeve, one side of the puncture sleeve is provided with a connecting seat, the side of the connecting seat away from the puncture sleeve is provided with a fixing rod, one end of the fixing rod passes through the connecting seat and extends to the inside of the puncture sleeve and is connected to the puncture needle, and one side of the puncture sleeve is provided with a drainage tube joint.

[0004] This drainage device moves the puncture needle by pulling the fixing rod, but the puncture needle is only fixed by the clamping ring during the movement. When the puncture needle penetrates the skin, the stress is concentrated on the needle head, resulting in a large momentum. The clamping ring easily causes relative sliding between the fixing rod and the sleeve, resulting in failure of the puncture needle to penetrate. At the same time, the puncture needle is located in the sleeve, which affects the drainage efficiency of the pleural effusion to a certain extent. Summary of the invention

[0005] The purpose of the utility model is to solve the problems in the background technology that the puncture needle is located in the sleeve, which affects the drainage efficiency of the pleural effusion and the fixing rod cannot be tightly fixed, resulting in relative displacement and making it difficult for the puncture needle to penetrate the chest cavity, and to propose a thoracic puncture and drainage device.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A thoracentesis drainage device comprises a tube sleeve, one end of which is slidably provided with a penetration needle, the other end of which is slidably provided with a push rod, a connecting rod is provided between the push rod and the penetration needle, and a force sensor is provided at one end of the connecting rod close to the penetration needle;

[0008] A clamping ring is arranged on the surface of the pipe sleeve, an electric control device is arranged inside the clamping ring, an electromagnet is arranged on the inner wall of the pipe sleeve, and the electric control device of the clamping ring is communicatively connected with the force sensor and the electromagnet.

[0009] As a further solution of the utility model: a flow port is arranged inside the pipe sleeve, and the flow port is communicated with the drainage pipe.

[0010] As a further solution of the utility model: an adjustment structure is provided on the surface of the pipe sleeve, a connecting ring of the adjustment structure is fixedly provided on the surface of the pipe sleeve, an adjustment knob is rotatably provided on the surface of the connecting ring; an adjustment disk is rotatably provided in the channel of the connecting ring, and the adjustment disk is transmission-connected to the adjustment knob.

[0011] As a further solution of the utility model: a connecting column is rotatably provided on the inner wall of the connecting ring, one end of which is connected to the adjusting disk; an adjusting rod is coaxially connected to the adjusting knob, one end of which is connected to the connecting column.

[0012] As a further solution of the utility model: a one-way valve is arranged on the surface of the discharge pipe.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model provides a thoracentesis and drainage device, which is provided with a push rod. After the penetration needle drives the tube sleeve into the body, the penetration needle is pulled up and extended into the tube sleeve by pulling the push rod, thereby increasing the space inside the tube sleeve, so that the effusion in the patient's thoracic cavity can effectively flow from the tube sleeve into the drainage tube, thereby increasing the drainage efficiency;

[0015] (2) The utility model provides a thoracic puncture and drainage device, which is provided with a clamping ring and an internal electromagnet. The electric control device of the clamping ring can control the electromagnet to adsorb and fix the push rod, so that the push rod and the tube sleeve are relatively fixed, allowing the penetration needle to be smoothly inserted into the patient's body. At the same time, the clamping ring provides a holding position and the force sensor in the connecting rod can detect the change in the applied force. After the penetration needle is inserted into the body, the electric control device controls the clamping ring to vibrate slightly, reminding the user that the penetration needle has been inserted into the body for subsequent drainage operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a thoracentesis and drainage device of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of a thoracentesis and drainage device of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a thoracentesis drainage device during drainage of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the adjustment structure of the utility model.

[0021] In the figure: 1. pipe sleeve; 2. penetration needle; 3. connecting rod; 4. pushing rod; 5. clamping ring; 6. electromagnet; 7. force sensor; 8. flow port; 9. adjustment structure; 91. connecting ring; 92. adjusting disk; 93. connecting column; 94. adjusting rod; 95. adjusting knob; 10. discharge pipe; 11. one-way valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0023] See also Figure 1-4 As shown, the utility model is a thoracic puncture drainage device, comprising a sleeve 1, wherein a penetration needle 2 is slidably provided inside the sleeve 1, and the needle end of the penetration needle 2 can extend from one end of the sleeve 1. A push rod 4 is slidably provided at the other end of the sleeve 1 where the penetration needle 2 is provided, and a connecting rod 3 is coaxially provided between the push rod 4 and the penetration needle 2. A clamping ring 5 is provided on the outer surface of the sleeve 1, and an electric control device is provided inside the clamping ring 5. An electromagnet 6 is provided inside the sleeve 1, and the push rod 4 and the penetration needle 2 are made of a material that can be adsorbed by the electromagnet 6, and the connecting rod 3 is made of a non-metallic material with high hardness. A force sensor 7 is provided inside the end of the connecting rod 3 close to the penetration needle 2, and the force sensor 7 is communicatively connected to the electric control device inside the clamping ring 5; the electric control device inside the clamping ring 5 is electrically connected to the electromagnet 6.

[0024] The bottom of the pipe sleeve 1 is connected with a flow port 8, and the pipe sleeve 1 is connected with a drain pipe 10 through the flow port 8. The surface of the pipe sleeve 1 is provided with a connection ring 91 of an adjustment structure 9, which is fixedly arranged on the surface of the pipe sleeve 1. The surface of the connection ring 91 is rotatably provided with an adjustment knob 95, and the center of the adjustment knob 95 is coaxially fixedly connected with an adjustment rod 94, one end of the adjustment rod 94 extends into the interior of the connection ring 91, and the inner wall of the connection ring 91 is rotatably provided with a connection column 93, and the connection column 93 is coaxially fixedly connected with the adjustment rod 94. The internal channel of the connection ring 91 is provided with an adjustment disk 92, the shape of the adjustment disk 92 is adapted to the cross section of the internal channel of the connection ring 91, and one end of the connection column 93 is fixedly connected with the adjustment disk 92. The bottom of the connection ring 91 is provided with a drain pipe 10, and the surface of the drain pipe 10 is provided with a one-way valve 11.

[0025] When using this thoracentesis and drainage device, the user pushes the push rod 4 in, and the push rod 4 extends the penetration needle 2 from one end of the tube sleeve 1 through the connecting rod 3. Then the electromagnet 6 is activated by the electric control device, and the electromagnet 6 contacts the surface of the connecting rod 3, thereby adsorbing and fixing the connecting rod 3. Then the user pinches the clamping ring 5 with his hand to make the penetration needle 2 pierce the patient's chest. After the penetration needle 2 pierces the patient's skin, the friction force on the penetration needle 2 will change instantly. At this time, the force sensor 7 at one end of the connecting rod 3 will feel the change in force, thereby transmitting the signal to the electric control device inside the clamping ring 5. The electric control device controls the clamping ring 5 to produce a slight vibration, reminding the user that the penetration needle 2 has pierced into the body. At the same time, the electric control device controls the electromagnet 6 to close, so that the electromagnet 6 releases the fixation of the push rod 4. The user pulls the push rod 4 to make the push rod 4 drive the connecting rod 3 and the penetration needle 2 to move to one end. The penetration needle 2 extends into the tube sleeve 1, exposing the flow port 8 blocked by the penetration needle 2. Then the external structure is activated to make the tube sleeve 1 absorb the accumulated fluid in the patient's body, and the accumulated fluid enters the drainage tube 10 through the tube sleeve 1 and is discharged. The one-way valve 11 arranged on the surface of the drainage tube 10 can make the liquid be discharged through the drainage tube 10 in one direction, so as to prevent the liquid from flowing back into the patient's body. The flow rate of the liquid can be adjusted by the adjustment structure. By rotating the adjustment knob 95, the adjustment knob 95 drives the adjustment rod 94 to rotate, and one end of the adjustment rod 94 drives the connecting column 93 to rotate, and one end of the connecting column 93 drives the adjustment disk 92 to rotate, thereby changing the flow area of ​​the internal channel of the adjustment disk 92 and the connecting ring 91, and then changing the discharge speed of the liquid. The electric control device controls the electromagnet 6 to be closed for a period of time and then restarts, so that the electromagnet 6 fixes the penetration needle 2 inside the tube sleeve 1, thereby preventing the penetration needle 2 from sliding relative to the tube sleeve 1 during the drainage process.

[0026] Working principle of the utility model: A thoracic puncture and drainage device of the utility model is provided with a push rod 4. After the penetration needle 2 drives the tube sleeve 1 to enter the body, the penetration needle 2 is driven to extend and retract into the tube sleeve 1 by pulling the push rod 4, thereby increasing the space inside the tube sleeve 1, so that the effusion in the patient's thoracic cavity can effectively flow from the tube sleeve 1 into the drainage tube 10, thereby increasing the drainage efficiency; by providing a clamping ring 5 and an internal electromagnet 6, the electric control device of the clamping ring 5 can control the electromagnet 6 to adsorb and fix the push rod 4, so that the push rod 4 and the tube sleeve 1 are relatively fixed, so that the penetration needle 2 can be smoothly inserted into the patient's body, and at the same time, the clamping ring 5 provides a holding position while the force sensor 7 in the connecting rod 3 can detect the change of the applied force. After the penetration needle 2 is inserted into the body, the clamping ring 5 is controlled by the electric control device to vibrate slightly to remind the user that the penetration needle 2 has been inserted into the body for subsequent drainage operations.

[0027] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A thoracentesis and drainage device, characterized in that: The invention comprises a tube sleeve (1), one end of which is slidably provided with a penetration needle (2), the other end of which is slidably provided with a push rod (4), a connecting rod (3) is provided between the push rod (4) and the penetration needle (2), and a force sensor (7) is provided at one end of the connecting rod (3) close to the penetration needle (2); A clamping ring (5) is arranged on the surface of the pipe sleeve (1), an electric control device is arranged inside the clamping ring (5), an electromagnet (6) is arranged on the inner wall of the pipe sleeve (1), and the electric control device of the clamping ring (5) is communicatively connected with the force sensor (7) and the electromagnet (6).

2. A thoracentesis and drainage device according to claim 1, characterized in that: A flow port (8) is provided inside the pipe sleeve (1), and the flow port (8) is communicated with a liquid discharge pipe (10).

3. A thoracentesis and drainage device according to claim 1, characterized in that: An adjustment structure (9) is provided on the surface of the pipe sleeve (1); a connecting ring (91) of the adjustment structure (9) is fixedly arranged on the surface of the pipe sleeve (1); an adjustment knob is rotatably arranged on the surface of the connecting ring (91); an adjustment disk (92) is rotatably arranged in a channel of the connecting ring (91); and the adjustment disk (92) is transmission-connected to the adjustment knob.

4. A thoracentesis and drainage device according to claim 3, characterized in that: A connecting column (93) is rotatably provided on the inner wall of the connecting ring (91), one end of which is connected to the adjusting disk (92); an adjusting rod (94) is coaxially connected to the adjusting knob (95), one end of which is connected to the connecting column (93).

5. A thoracentesis and drainage device according to claim 1, characterized in that: A one-way valve (11) is arranged on the surface of the liquid discharge pipe (10).

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