Medical drainage device and use method
By designing a medical drainage device including power devices and control devices, the problems of inaccurate drainage and high operating risks in the prior art are solved, precise control of drainage speed and drainage volume is achieved, and the safety and efficiency of clinical treatment are improved.
Patent Information
- Application Number
- CN202510607524.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-06-13
AI Technical Summary
In the prior art, drainage is inaccurate, high operating risks, many complications, and lack of controllable drainage devices, making it difficult to meet the clinical precise control needs for drainage speed and drainage.
A medical drainage device is designed, including a power device and a control device. The drainage speed and drainage rate are controlled by adjusting the rotation speed of the power device. The drainage tube adopts a discontinuous segmented structure, combined with the collection device and the three-way connection, real-time observation and control of the drainage liquid are achieved.
Accurate control of drainage speed and drainage volume is achieved, risks and complications during drainage process are reduced, safety and efficiency of clinical treatment are improved, and burdened by medical staff and patients' families.
Smart Images
Figure CN120132098A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and particularly relates to a medical drainage device and a using method thereof. Background Art
[0002] Under normal conditions, there is a small amount of liquid in the human chest cavity, abdominal cavity, cranium, and cavities left after surgery, which play different roles respectively. For example, when the amount of liquid in the cavity increases beyond the normal physiological range under pathological conditions, it will become a disease, such as pleural effusion and ascites, excessive cerebrospinal fluid (hydrocephalus), and excessive liquid in the cavity left after surgery, resulting in fluid accumulation, blood accumulation, or gas accumulation.
[0003] There are many causes of pleural effusion, which is a very common clinical disease. Although ascites and pleural effusion are only a symptom, a large amount of ascites and a large amount of pleural effusion will cause a series of complications and are not conducive to the treatment of the cause, and even endanger life in severe cases. Therefore, for cases with symptoms of a large amount of ascites and a large amount of pleural effusion, when drug treatment is ineffective, fluid drainage must be carried out first during clinical treatment.
[0004] During the operation of clinically draining a large amount of fluid, specific requirements are often placed on clinical parameters such as the daily drainage frequency, the amount of fluid drained each time, and the drainage speed according to the condition of the case. In actual clinical operations, the clinical parameters during the drainage process are usually set by the doctor's requirements and are subjectively controlled by nursing staff or the patient's family members. The current manual control method has certain drawbacks. On the one hand, due to misunderstandings in the oral communication of medical orders or operator negligence, etc., the drainage process often fails to proceed as expected by the doctor, causing discomfort and harm to the patient due to improper drainage, and even endangering the patient's life. On the other hand, the real-time drainage volume and drainage speed during the drainage process are usually judged by manual observation, with a large error, which also makes it difficult to ensure the drainage effect. At the same time, the current control method obviously increases the burden on medical staff and the patient's family members.
[0005] Currently, the methods of instrument drainage at home and abroad are as follows: Place a drainage tube as the drainage passage, and the drainage tube is connected to a collection device. This method has some disadvantages. Sometimes the drainage is not thorough, and the drainage effect cannot meet the requirements of clinical treatment. Therefore, experts and manufacturers at home and abroad have made improvements and designed negative pressure drainage devices, which are divided into two situations: 1. The collection device is connected to a negative pressure device to generate an attraction force, such as a "three-chamber closed thoracic drainage bottle"; 2. The collection device itself has negative pressure, such as a negative pressure drainage ball or a negative pressure bottle. However, the problem brought by this kind of device is that the drainage may be too fast or the negative pressure may be too large, affecting the treatment.
[0006] Therefore, there is an inevitable need in clinical practice for a device that can control the drainage speed and the amount of drained fluid. Currently, there is no effective controllable drainage device that meets clinical requirements. Summary of the Invention
[0007] In view of the deficiencies of the prior art, the present invention provides a medical drainage device and a method of use, which solve the problems of inaccurate drainage, high operation risks, and many complications in the prior art, and improve the safety and efficiency of clinical treatment.
[0008] Technical Solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, a medical drainage device includes a power device and a control device, and the control device is used to control the power device so as to control the outflow speed of the liquid.
[0009] Furthermore, the power device is connected to a drainage tube, and the drainage tube has a discontinuous segmented structure.
[0010] Furthermore, the entire drainage tube continuously passes through the power device.
[0011] Furthermore, the drainage tube is located outside the power device.
[0012] Furthermore, the end of the drainage tube is connected to a collection device, and the collection device can observe the color of the drained fluid and is provided with a scale on its surface to display the amount of drained fluid.
[0013] Furthermore, the head or tail end of the drainage tube is connected through a three-way connection, and the three-way connection is used to close the drainage tube, collect the drained fluid, or inject drugs or liquids into the drainage tube.
[0014] Furthermore, the power device includes a motor combined with an impeller pump, a peristaltic pump, a reciprocating pump, a gear pump, or an anti-reflux pump, and the power device is powered by a battery or an external power supply, or driven by gas power (high-pressure gas or vacuum low-pressure).
[0015] Furthermore, the control device includes an electric drive board and a speed control switch, and the speed control switch controls the amount of drained fluid by adjusting the rotation speed of the power device; the control device is provided with a display device for displaying the drainage speed (such as ml / hour) or the amount of drained fluid (such as ml / day).
[0016] According to another aspect of the present invention, more specifically, a method of using a medical drainage device uses a medical drainage device as described above, and includes the following steps: S1. Connection Step: Connect the head end of the drainage tube to the drainage passage of the human body cavity (thorax, abdomen, cranium, or surgical cavity), connect the tail end to the collection device, and select the connection method of the drainage tube and the power device (segmented, continuously passing through, or external). S2. Parameter setting step: Set the target drainage rate (such as 6.25 ml / hour, 7.5 ml / hour, 8.75 ml / hour) or the drainage volume (such as 150 ml / day, 180 ml / day, 210 ml / day) through the speed control switch of the control device; S3. Drainage step: Start the power device, and the liquid flows into the collection device through the drainage tube. Observe the drainage volume through the scale of the collection device, and take samples or inject drugs through the three-way stopcock; S4. Safety control step: When the power is cut off or the gas pressure disappears, the power device stops drainage and continues to operate after the power is restored; Adjust the drainage parameters according to the chamber pressure to avoid over-drainage or blockage; S5. End step: Turn off the power device, block the drainage tube through the three-way stopcock, and remove the device.
[0017] Furthermore, in the parameter setting step, the target drainage rate is set according to the physiological parameters of the human body cavity. For example, when performing external ventricular drainage, it is set to 5 - 10 ml / hour. When performing thoracic drainage, the speed is controlled to prevent re-expansion pulmonary edema. When performing abdominal drainage, continuous negative pressure is used to reduce blockage. Through the power device, negative pressure is generated in the drainage tube, making the drainage more thorough without residue.
[0018] The beneficial effects of a medical drainage device and its usage method of the present invention are as follows: Precise control is set: Set the drainage rate according to the condition (such as intracranial drainage 6.25 - 8.25 ml / h) to avoid risks such as brain hernia caused by too fast drainage, (such as thoracic drainage 50 - 200 ml / h) to avoid risks such as re-expansion pulmonary edema, or too slow drainage, insufficient negative pressure, resulting in incomplete drainage.
[0019] Safe and reliable: Continuous and stable negative pressure suction reduces the blockage of the drainage tube (especially for high-protein and contaminated effusions). The three-way stopcock design supports convenient operation and prevents backflow; The device is small and light, reducing the risk of tube detachment.
[0020] Strong adaptability: Suitable for external ventricular drainage, lumbar cistern drainage, thoracic / abdominal drainage and surgical area drainage, compatible with different body position changes and patient states (such as restlessness, unconsciousness), reducing the medical monitoring pressure. Description of the Drawings
[0021] The following further elaborates on the present invention in detail in conjunction with the drawings and specific implementation methods.
[0022] Figure 1 It is a structural diagram of the discontinuous segmented drainage tube in the present invention; Figure 2 It is a schematic structural diagram of the entire continuous drainage tube passing through the power device in the present invention. Detailed Implementation Modes
[0023] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.
[0024] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] Refer to Figure 1 - Figure 2 , Embodiment 1: External ventricular drainage, The purpose of the intracranial ventricular drainage tube is to drain cerebrospinal fluid. The front end of the drainage tube is connected to the intracranial drainage tube through a connecting device, such as a three-way joint, or can be directly connected; By setting the parameters of this device, such as 6.25 ml, 7.5 ml, 8.25 ml, etc. per hour, The invention point: Under normal circumstances, intracranial pressure has a normal value, which is 0.7 - 2.0 kPa (5 - 15 mmHg) for adults and 0.5 - 1.0 kPa (3.5 - 7.5 mmHg) for children. However, in craniocerebral surgeries such as brain trauma, cerebral hemorrhage, and brain tumors, intracranial pressure usually increases significantly, Mild: 15 - 20 mmHg; Moderate: 21 - 40 mmHg; Severe: > 40 mmHg At this time, it is necessary to drain cerebrospinal fluid to reduce intracranial pressure. Therefore, the drainage speed of cerebrospinal fluid is different under different pressures, but it is not feasible to have too fast a drainage speed, as too fast a drainage speed will cause brain herniation and lead to the death of the patient. What this device realizes is: under different intracranial pressure conditions, normal intracranial pressure, increased intracranial pressure, and even low intracranial pressure, it can achieve continuous, stable, and medical - need - compliant drainage according to the set value. At the same time, it avoids the occurrence of situations such as drainage tube blockage, reflux, poor drainage, insufficient drainage, and excessive drainage, significantly reducing the workload of nurses.
[0026] When the patient needs to go out for examination, the power supply is cut off, the motor stops rotating, and the drainage is paused.
[0027] The product should be as small and light as possible to prevent the ventricular drainage tube from falling off due to the detachment of this product.
[0028] Embodiment 2: Lumbar cistern drainage tube When sitting, the lumbar puncture pressure can reach 3.3 - 4.0 kPa (25 - 30 mmHg). During lumbar cistern drainage, therefore, the lumbar cistern drainage tube is connected to this device, and it can also achieve continuous, stable, and medical - need - compliant drainage. It avoids situations where the patient's drainage volume suddenly increases or decreases due to body position changes, because short - term large - volume drainage from the lumbar cistern will cause brain herniation. Sometimes patients can follow instructions, while some patients are unconscious and restless and cannot follow instructions. At this time, this device significantly avoids the occurrence of unexpected situations and ensures the safety of the patient.
[0029] Example 3: Connected to a thoracic drainage tube This device is connected to a thoracic drainage tube. The drainage of pleural effusion should not be too fast. If the drainage speed is too fast, it will cause reexpansion pulmonary edema, which will have serious consequences once it occurs and usually requires ventilator support treatment. This product and method can control the drainage speed and prevent the occurrence of reexpansion pulmonary edema.
[0030] The pleural effusion is usually bloody or turbid, with a high protein content, so it is easy to be blocked. This device continuously aspirates, creating negative pressure in the drainage tube, effectively reducing the occurrence of drainage tube blockage and achieving more thorough drainage.
[0031] However, the generated negative pressure should not be too large, as too large a negative pressure is likely to cause damage to lung tissue and pleura.
[0032] Example 3: Connected to an abdominal drainage tube This device is connected to the drainage tube and can control the drainage speed. The abdominal effusion is usually bloody, turbid, or contaminated. The effusion is contaminated by bacteria, has a high protein content, or is contaminated by food residues or feces, so it is easy to be blocked and the drainage is not smooth, leading to residual abdominal infection. This device continuously aspirates, creating negative pressure in the drainage tube, effectively reducing the occurrence of drainage tube blockage and achieving more thorough drainage.
[0033] Example 4: Connected to surgical drainage tubes in general surgery, orthopedics, etc. Through effective continuous negative pressure suction, the accumulated blood and effusion in the surgical area can be effectively drained.
[0034] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.
Claims
1. A medical drainage device, comprising a power device and a control device, characterized in that: The control device is used to control the power device, thereby controlling the outflow speed of the liquid.
2. A medical drainage device according to claim 1, characterized in that: The power device is connected to the drainage pipe, and the drainage pipe is a discontinuous segmented structure.
3. A medical drainage device according to claim 1, characterized in that: The drainage pipe passes through the power device in its entirety and continuously.
4. A medical drainage device according to claim 1, characterized in that: The drainage pipe is located outside the power device.
5. A medical drainage device according to claims 2, 3 and 4, characterized in that: The end of the drainage tube is connected to a collecting device, the color of the drainage fluid can be observed by the collecting device, and a scale is provided on the surface of the collecting device to display the drainage amount.
6. A medical drainage device according to claim 5, characterized in that: The head end or tail end of the drainage tube is connected via a tee, and the tee is used to close the drainage tube, retain drainage fluid, or inject medicine or liquid into the drainage tube.
7. A medical drainage device according to claim 1, characterized in that: The power device comprises a motor combined with an impeller pump, a peristaltic pump, a reciprocating pump, a gear pump or an anti-reflux pump, and the power device is powered by a battery or an external power supply, or driven by gas power.
8. A medical drainage device according to claim 1, characterized in that: The control device includes an electric drive plate and a speed control switch, and the speed control switch controls the drainage volume by adjusting the rotation speed of the power device; the control device is provided with a display device, and the display numbers change in conjunction with the speed control switch, and are used to display the control device setting for displaying the drainage speed or drainage volume.
9. A method for using a medical drainage device, using the medical drainage device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, connection step: connect the head end of the drainage tube to the drainage passage of the human body cavity, connect the end end to the collection device, and select the connection method between the drainage tube and the power device; S2, parameter setting step: setting the target drainage speed or drainage volume through the speed regulating switch of the control device; S3, drainage step: start the power device, the liquid flows into the collection device through the drainage tube, the drainage volume is observed through the scale of the collection device, and samples are collected or drugs are injected through the three-way valve; S4. Safety control steps: When power is off or gas pressure disappears, the power device stops draining and continues to operate after power is restored or gas pressure is restored; adjust drainage parameters according to chamber pressure to avoid insufficient drainage, excessive drainage, reflux, and blockage; S5, ending step: shut down the power device, block the drainage tube through the tee, and dismantle the device.
10. A method for using a medical drainage device according to claim 9, characterized in that: In the S2 parameter setting step, the target drainage rate is set according to the physiological parameters of the human body cavity. For example, it is set to 5-10 ml / hour for extraventricular drainage, and the rate is controlled to prevent re-expansion pulmonary edema during thoracic drainage. During abdominal drainage, continuous negative pressure is used to reduce blockage, drain more thoroughly, and have less residual effect.