Pleural fluid extraction device and method

By designing structures such as scale lines, combined tube sleeves, support rods and positioning blocks on the chest aspirator, the instability problem of traditional devices during one-handed operation is solved, ensuring the stability of the aspiration depth and the convenience of operation.

CN119564957BActive Publication Date: 2025-09-26AFFILIATED HOSPITAL OF NANTONG UNIV
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Patent Information

Application Number
CN202510014534.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-09-26
Estimated Expiration
2045-01-06

AI Technical Summary

Technical Problem

When a traditional chest drainage device is connected to a drainage bag, the extraction depth is difficult to control due to unstable one-handed operation, which affects the stability of the device.

Method used

A cardiology chest aspirator is designed, which is equipped with scale lines, a combined tube sleeve, a support rod, a positioning block and a balancing foot pad. The support rod and the positioning block are used in conjunction to ensure the stability of the device when inserted into the chest cavity. The support rod is hidden by the combined tube sleeve to maintain a neat appearance and facilitate handheld operation.

Benefits of technology

The stability of the chest pump in the chest cavity is achieved, the insertion position change is avoided, the operation of medical staff is simplified, and the controllability and stability of the device are improved.

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Abstract

The present invention discloses a pleural fluid extraction device and a fluid extraction method, including a cardiology pleural fluid extractor, wherein the front end of the surface of the cardiology pleural fluid extractor is provided with a scale line, the interior of the cardiology pleural fluid extractor is provided with a piston shaft, the interior of the piston shaft is provided with a closing rod, the bottom end of the piston shaft is provided with a rubber plug, and the external tube mouth of the cardiology pleural fluid extractor is provided with a booster handle. In this invention, a combined tube sleeve is provided on the outside of the cardiology pleural fluid extractor, and the combined tube sleeve is used to hide and store the support rods, so that the appearance of the cardiology pleural fluid extractor remains neat and does not affect the hand-held operation of medical staff. Three support rods are provided on the inside of the combined tube sleeve, and the support rods can support and position the cardiology pleural fluid extractor, fix the cardiology pleural fluid extractor to the human body, and ensure the stability of the cardiology pleural fluid extractor inserted into the chest cavity.
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Description

Technical Field

[0001] The present invention relates to medical-related fields, and in particular to a pleural fluid extraction device and a fluid extraction method. Background Art

[0002] Cardiology, also known as cardiovascular medicine, is a clinical department set up by the general internal medicine departments of hospitals at all levels to diagnose and treat cardiovascular diseases. The diseases treated include angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beats, arrhythmia, myocardial infarction, cardiomyopathy, myocarditis, acute myocardial infarction and other cardiovascular diseases. Yangtze River diseases include coronary heart disease, hypertension, arrhythmia, atrial fibrillation, paroxysmal supraventricular tachycardia, heart failure, myocarditis, congenital heart disease, cardiomyopathy, atrial septal defect, rheumatic heart disease, myocardial infarction, angina pectoris, acute infective endocarditis, and myocardial ischemia.

[0003] There are still certain disadvantages in the use of chest cavity fluid extraction devices in the existing technology. Traditional chest cavity fluid extraction devices usually rely on the arm strength of medical staff to control the stability of the extractor. However, when the extractor is inserted into the chest cavity, during the process of connecting with the drainage bag, the medical staff needs to hold the extractor with one hand and the drainage bag with the other hand. Since one-handed operation is not stable enough, the device is unstable, which will cause the depth of fluid extraction to change, making it inconvenient for medical staff to control the operation of the device. Summary of the Invention

[0004] The purpose of the present invention is to provide a chest cavity fluid extraction device and a fluid extraction method to solve the problem that the traditional chest cavity fluid extraction device proposed in the above background technology usually relies on the arm strength of medical staff to control the stability of the fluid extractor, but when the fluid extractor is inserted into the chest cavity, during the process of connecting with the drainage bag, the medical staff needs to hold the fluid extractor with one hand and the drainage bag with the other hand. Since one-handed operation is not stable enough, the device is unstable, the depth of fluid extraction will change, and it is inconvenient for medical staff to control the operation of the device.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: A pleural fluid extraction device comprises a cardiology pleural fluid extraction device, wherein the front end of the surface of the cardiology pleural fluid extraction device is provided with scale lines, the interior of the cardiology pleural fluid extraction device is provided with a piston shaft, the interior of the piston shaft is provided with a closing rod, the bottom end of the piston shaft is provided with a rubber stopper, the external tube mouth of the cardiology pleural fluid extraction device is provided with a booster handle, the external of the cardiology pleural fluid extraction device is provided with a combined tube sleeve, the front end of the combined tube sleeve is provided with a hollow inspection port at a position aligned with the scale lines, the inner wall of the combined tube sleeve is provided with a support rod, the bottom end of the support rod is provided with a balancing foot pad, the top of the support rod is provided with a balancing moving block, the top of the combined tube sleeve is provided with a concave handle, the lower end of the external lower end of the combined tube sleeve is provided with a folding port, the bottom end of the cardiology pleural fluid extraction device is provided with a needle, the outside of the needle is provided with a positioning block, a drainage bag is provided on one side of the cardiology pleural fluid extraction device, and a drainage tube is provided above the drainage bag.

[0006] In a further embodiment, the combined tube sleeve is fixedly connected to the booster handle via a locking slot, and the combined tube sleeve is connected to the tube body of the cardiology chest aspirator by inlaying.

[0007] In a further embodiment, a fixing cap is provided at the top end of the closing rod, and the fixing cap is configured as a spherical structure, and the closing rod is connected to the piston shaft by plugging.

[0008] In a further embodiment, the positioning block is connected to the needle through sliding, and the cross section of the positioning block is set to a conical structure.

[0009] In a further embodiment, the support rod and the balancing moving block are connected by rotation, and the balancing moving block and the combined pipe sleeve are slidably connected by a height adjustment slider and a height adjustment slot, a limiting protrusion is provided at the lower position outside the height adjustment slot, and the height adjustment slider and the limiting protrusion are connected by inlaying.

[0010] In a further embodiment, the balancing foot pad is connected to the support rod by rotation, an adhesive layer is provided on the bottom surface of the balancing foot pad, and the shape of the balancing foot pad is set to be a circular structure.

[0011] In a further embodiment, there are three support rods, and the support rods are made of plastic.

[0012] A cardiology pleural fluid extraction method, using the pleural fluid extraction device, comprises the following steps:

[0013] S1. Insert your finger through the recessed handle, hold the booster handle in place, and insert the needle into the desired position in the chest cavity.

[0014] S2. Move the positioning block downward to contact the skin, support and position the needle insertion point, and remove the balancing foot pad from the folding opening;

[0015] S3. Lower the support rod downward using the height adjustment slider and rotate the support rod to the desired angle;

[0016] S4. Rotate the balancing foot pad downward to a horizontal position and stick it to the skin via the adhesive layer to fix the position of the cardiology chest aspirator 1;

[0017] S5. Hold the fixing cap and remove the closing rod. Insert the drainage tube into the booster handle and pull the piston shaft upward to transfer the liquid to the drainage bag through the drainage tube for storage.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, a combined tube sleeve is provided on the outside of the cardiology chest aspirator, and the combined tube sleeve is used to hide and store the support rod, so that the appearance of the cardiology chest aspirator remains neat and does not affect the hand-held operation of medical staff.

[0020] 2. Three support rods are provided inside the combined tube sleeve, which can support and position the cardiology chest aspirator, fix the cardiology chest aspirator to the human body, ensure the stability of the cardiology chest aspirator when inserted into the chest cavity, avoid changes in the insertion position, free the hands of medical staff, and facilitate the connection and combination of the cardiology chest aspirator and the drainage bag.

[0021] 3. A positioning block is provided on the outside of the needle, which can limit the position of the needle insertion and increase the support force of the contact position between the needle and the skin to prevent the position of the needle from shifting, making it easier for medical staff to operate the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a pleural fluid extraction device of the present invention;

[0023] Figure 2 Schematic diagram of the cross-sectional structure of the combined pipe sleeve of the present invention;

[0024] Figure 3 is a side view of a support rod of the present invention;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the cardiology chest cavity fluid extraction device of the present invention;

[0026] Figure 5 A top view of a pleural fluid extraction device according to the present invention;

[0027] Figure 6 It is a front view of the combined pipe sleeve of the present invention.

[0028] In the figure: 1. Cardiology chest aspirator; 2. Combined tube sleeve; 3. Scale line; 4. Hollow inspection port; 5. Locking slot; 6. Recessed handle; 7. Needle; 8. Positioning block; 9. Support rod; 10. Closing rod; 11. Fixing cap; 12. Drainage tube; 13. Drainage bag; 14. Balancing moving block; 15. Adhesive layer; 16. Boosting handle; 17. Piston shaft; 18. Height adjustment slider; 19. Balancing foot pad; 20. Rubber stopper; 21. Height adjustment slide; 22. Limiting bump; 23. Folding mouth. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Example 1

[0031] See also Figure 1-6 , an embodiment of the present invention provides: a chest cavity fluid extraction device, including a cardiology chest cavity fluid extraction device 1, a scale line 3 is provided on the front end of the surface of the cardiology chest cavity fluid extraction device 1, a piston shaft 17 is provided inside the cardiology chest cavity fluid extraction device 1, a closing rod 10 is provided inside the piston shaft 17, a rubber stopper 20 is provided at the bottom end of the piston shaft 17, an auxiliary handle 16 is provided at the position of the tube mouth of the outside of the cardiology chest cavity fluid extraction device 1, a combined tube sleeve 2 is provided on the outside of the cardiology chest cavity fluid extraction device 1, a hollow inspection port 4 is provided at the position where the front end of the combined tube sleeve 2 is aligned with the scale line 3, a support rod 9 is provided on the inner wall of the combined tube sleeve 2, and a balance rod 9 is provided at the bottom end of the support rod 9. A foot pad 19 and a balancing moving block 14 are provided at the top of the support rod 9, a recessed handle 6 is provided above the combined tube sleeve 2, the combined tube sleeve 2 and the booster handle 16 are fixedly connected through a locking slot 5, and the combined tube sleeve 2 and the tube body of the cardiology chest aspirator 1 are connected by inlaying, and the locking slot 5 is used to assemble and fix the combined tube sleeve 2 and the booster handle 16; a folding opening 23 is provided at the lower end position of the outside of the combined tube sleeve 2, a needle 7 is provided at the bottom end of the cardiology chest aspirator 1, and a positioning block 8 is provided on the outside of the needle 7, the positioning block 8 and the needle 7 are connected by sliding, and the cross-section of the positioning block 8 is set to a conical structure, and the position of the positioning block 8 is conveniently adjusted by the sliding connection.

[0032] A drainage bag 13 is provided on one side of the cardiology chest aspirator 1, and a drainage tube 12 is provided above the drainage bag 13. The scale line 3 is used to measure the volume of the internal liquid, the closing rod 10 is used to open or close the inside of the piston shaft 17, the booster handle 16 is used for holding, the hollow inspection port 4 is used to expose the scale line 3, the combined tube sleeve 2 is used to combine and install the support rod 9 with the cardiology chest aspirator 1, the support rod 9 is used to support and fix the position where the cardiology chest aspirator 1 is inserted, the balancing moving block 14 is used to adjust the support rod 9, the folding port 23 is used to take and place the balancing foot pad 19, and the drainage bag 13 is used to store the liquid.

[0033] A fixing cap 11 is provided at the top of the closing rod 10 , and the fixing cap 11 is a spherical structure. The closing rod 10 is connected to the piston shaft 17 by plugging. The fixing cap 11 is convenient for holding the closing rod 10 to install or remove it.

[0034] The support rod 9 is connected to the balancing moving block 14 through rotation, and the balancing moving block 14 and the combined pipe sleeve 2 are slidably connected to the height adjustment slide 21 through the height adjustment slider 18. A limiting protrusion 22 is provided at the lower position outside the height adjustment slide 21, and the height adjustment slider 18 and the limiting protrusion 22 are connected by inlaying. The rotation connection facilitates adjustment of the angle of the support rod 9, and the height adjustment slider 18 facilitates adjustment of the height of the balancing moving block 14. The limiting protrusion 22 is used to limit the adjustment position of the height adjustment slider 18.

[0035] The balancing foot pad 19 is connected to the support rod 9 through rotation. The bottom surface of the balancing foot pad 19 is provided with an adhesive layer 15, and the outer shape of the balancing foot pad 19 is set to a circular structure. The rotating connection makes it easy to adjust the angle of the balancing foot pad 19, and the adhesive layer 15 makes it easy to adhere the balancing foot pad 19 to the skin. There are three support rods 9 in total, and the support rods 9 are made of plastic. The three support rods 9 can improve the stability of the support.

[0036] A cardiology pleural fluid extraction method, using the pleural fluid extraction device, comprises the following steps:

[0037] S1. Insert your finger through the recessed handle 6, hold the booster handle 16 in place, and insert the needle 7 into the desired position in the chest cavity;

[0038] S2. Move the positioning block 8 downward to contact the skin, support and position the position where the needle 7 is inserted, and remove the balancing foot pad 19 from the folding opening 23;

[0039] S3. Lower the support rod 9 downwards through the height adjustment slider 18 and rotate the support rod 9 to a desired angle;

[0040] S4. Rotate the balancing foot pad 19 downward to a horizontal position and stick it to the skin via the adhesive layer 15 to fix the position of the cardiology chest aspirator 1;

[0041] S5. Hold the fixing cap 11 and remove the closing rod 10. Insert the drainage tube 12 into the booster handle 16. Pull the piston shaft 17 upward to transfer the liquid to the drainage bag 13 through the drainage tube 12 for storage.

[0042] Working principle: When in use, insert your finger from the recessed handle 6, hold the position of the booster handle 16, insert the needle 7 into the desired position of the chest cavity, move the positioning block 8 downward to contact the skin, support and position the position where the needle 7 is inserted, take out the balancing foot pad 19 from the folding opening 23, lower and adjust the support rod 9 downward through the height adjustment slider 18, rotate the support rod 9 to the desired angle, and then rotate the balancing foot pad 19 downward to a horizontal state, stick it to the skin through the adhesive layer 15, fix the position of the cardiology chest aspirator 1, hold the fixing cap 11, take out the closing rod 10, and then insert the drainage tube 12 into the booster handle 16, pull the piston shaft 17 upward, and transport the liquid to the drainage bag 13 through the drainage tube 12 for storage.

[0043] Example 2

[0044] See also Figure 1-6 , an embodiment of the present invention provides: a chest cavity fluid extraction device, including a cardiology chest cavity fluid extraction device 1, a scale line 3 is provided on the front end of the surface of the cardiology chest cavity fluid extraction device 1, a piston shaft 17 is provided inside the cardiology chest cavity fluid extraction device 1, a closing rod 10 is provided inside the piston shaft 17, a rubber stopper 20 is provided at the bottom end of the piston shaft 17, an auxiliary handle 16 is provided at the position of the tube mouth of the outside of the cardiology chest cavity fluid extraction device 1, a combined tube sleeve 2 is provided on the outside of the cardiology chest cavity fluid extraction device 1, a hollow inspection port 4 is provided at the position where the front end of the combined tube sleeve 2 is aligned with the scale line 3, a support rod 9 is provided on the inner wall of the combined tube sleeve 2, and a balance rod 9 is provided at the bottom end of the support rod 9. A foot pad 19 and a balancing moving block 14 are provided at the top of the support rod 9, a recessed handle 6 is provided above the combined tube sleeve 2, the combined tube sleeve 2 and the booster handle 16 are fixedly connected through a locking slot 5, and the combined tube sleeve 2 and the tube body of the cardiology chest aspirator 1 are connected by inlaying, and the locking slot 5 is used to assemble and fix the combined tube sleeve 2 and the booster handle 16; a folding opening 23 is provided at the lower end position of the outside of the combined tube sleeve 2, a needle 7 is provided at the bottom end of the cardiology chest aspirator 1, and a positioning block 8 is provided on the outside of the needle 7, the positioning block 8 and the needle 7 are connected by sliding, and the cross-section of the positioning block 8 is set to a conical structure, and the position of the positioning block 8 is conveniently adjusted by the sliding connection.

[0045] A drainage bag 13 is provided on one side of the cardiology chest aspirator 1, and a drainage tube 12 is provided above the drainage bag 13. The scale line 3 is used to measure the volume of the internal liquid, the closing rod 10 is used to open or close the inside of the piston shaft 17, the booster handle 16 is used for holding, the hollow inspection port 4 is used to expose the scale line 3, the combined tube sleeve 2 is used to combine and install the support rod 9 with the cardiology chest aspirator 1, the support rod 9 is used to support and fix the position where the cardiology chest aspirator 1 is inserted, the balancing moving block 14 is used to adjust the support rod 9, the folding port 23 is used to take and place the balancing foot pad 19, and the drainage bag 13 is used to store the liquid.

[0046] A fixing cap 11 is provided at the top of the closing rod 10 , and the fixing cap 11 is a spherical structure. The closing rod 10 is connected to the piston shaft 17 by plugging. The fixing cap 11 is convenient for holding the closing rod 10 to install or remove it.

[0047] The support rod 9 is connected to the balancing moving block 14 through rotation, and the balancing moving block 14 and the combined pipe sleeve 2 are slidably connected to the height adjustment slide 21 through the height adjustment slider 18. A limiting protrusion 22 is provided at the lower position outside the height adjustment slide 21, and the height adjustment slider 18 and the limiting protrusion 22 are connected by inlaying. The rotation connection facilitates adjustment of the angle of the support rod 9, and the height adjustment slider 18 facilitates adjustment of the height of the balancing moving block 14. The limiting protrusion 22 is used to limit the adjustment position of the height adjustment slider 18.

[0048] The balancing foot pad 19 is connected to the support rod 9 through rotation. The bottom surface of the balancing foot pad 19 is provided with an adhesive layer 15, and the shape of the balancing foot pad 19 is set to a circular structure. The rotating connection makes it easy to adjust the angle of the balancing foot pad 19, and the adhesive layer 15 makes it easy to adhere the balancing foot pad 19 to the skin.

[0049] A cardiology pleural fluid extraction method, using the pleural fluid extraction device, comprises the following steps:

[0050] S1. Insert your finger through the recessed handle 6, hold the booster handle 16 in place, and insert the needle 7 into the desired position in the chest cavity;

[0051] S2. Move the positioning block 8 downward to contact the skin, support and position the position where the needle 7 is inserted, and remove the balancing foot pad 19 from the folding opening 23;

[0052] S3. Lower the support rod 9 downwards through the height adjustment slider 18 and rotate the support rod 9 to a desired angle;

[0053] S4. Rotate the balancing foot pad 19 downward to a horizontal position and stick it to the skin via the adhesive layer 15 to fix the position of the cardiology chest aspirator 1;

[0054] S5. Hold the fixing cap 11 and remove the closing rod 10. Insert the drainage tube 12 into the booster handle 16. Pull the piston shaft 17 upward to transfer the liquid to the drainage bag 13 through the drainage tube 12 for storage.

[0055] Working principle: When in use, insert your finger from the recessed handle 6, hold the position of the booster handle 16, insert the needle 7 into the desired position of the chest cavity, move the positioning block 8 downward to contact the skin, support and position the position where the needle 7 is inserted, take out the balancing foot pad 19 from the folding opening 23, lower and adjust the support rod 9 downward through the height adjustment slider 18, rotate the support rod 9 to the desired angle, and then rotate the balancing foot pad 19 downward to a horizontal state, stick it to the skin through the adhesive layer 15, fix the position of the cardiology chest aspirator 1, hold the fixing cap 11, take out the closing rod 10, and then insert the drainage tube 12 into the booster handle 16, pull the piston shaft 17 upward, and transport the liquid to the drainage bag 13 through the drainage tube 12 for storage.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A chest cavity extraction device, comprising a cardiology chest cavity extraction device (1), characterized in that: The front end of the surface of the cardiology chest cavity aspirator (1) is provided with a scale line (3), the interior of the cardiology chest cavity aspirator (1) is provided with a piston shaft (17), the interior of the piston shaft (17) is provided with a closing rod (10), the bottom end of the piston shaft (17) is provided with a rubber plug (20), the position of the tube mouth of the outside of the cardiology chest cavity aspirator (1) is provided with a booster handle (16), the outside of the cardiology chest cavity aspirator (1) is provided with a combined tube sleeve (2), the front end of the combined tube sleeve (2) is provided with a hollow inspection port (4) at a position aligned with the scale line (3), and the combined tube sleeve A support rod (9) is provided at the inner wall of (2), a balancing foot pad (19) is provided at the bottom end of the support rod (9), a balancing moving block (14) is provided at the top end of the support rod (9), a recessed handle (6) is provided above the combined tube sleeve (2), a folding opening (23) is provided at the lower end of the outer portion of the combined tube sleeve (2), a needle (7) is provided at the bottom end of the cardiology chest aspirator (1), a positioning block (8) is provided outside the needle (7), a drainage bag (13) is provided on one side of the cardiology chest aspirator (1), and a drainage tube (12) is provided above the drainage bag (13); The support rod (9) is connected to the balancing moving block (14) by rotation, and the balancing moving block (14) and the combined pipe sleeve (2) are connected by sliding via a height adjustment slider (18) and a height adjustment slot (21). A limiting protrusion (22) is provided at a lower position outside the height adjustment slot (21), and the height adjustment slider (18) and the limiting protrusion (22) are connected by inlaying. The balancing foot pad (19) is connected to the support rod (9) by rotation, the bottom surface of the balancing foot pad (19) is provided with an adhesive layer (15), and the outer shape of the balancing foot pad (19) is set to a circular structure.

2. A chest cavity extraction device according to claim 1, characterized in that: The combined tube sleeve (2) and the booster handle (16) are fixedly connected via a locking slot (5), and the combined tube sleeve (2) and the tube body of the cardiology chest cavity aspirator (1) are connected via inlaying.

3. A chest cavity extraction device according to claim 1, characterized in that: A fixing cap (11) is provided at the top end of the closing rod (10), and the fixing cap (11) is configured as a spherical structure, and the closing rod (10) and the piston shaft (17) are connected by plugging.

4. A chest cavity extraction device according to claim 1, characterized in that: The positioning block (8) is connected to the needle (7) by sliding, and the cross section of the positioning block (8) is configured as a conical structure.

5. A pleural effusion device according to claim 1, characterized in that: There are three support rods (9) in total, and the support rods (9) are made of plastic.

Citation Information

Patent Citations

  • Thoracic puncture needle holder

    CN201076517Y

  • Pericardial puncture liquid extraction device for cardiology department

    CN213158215U