Medical thoracic cavity negative pressure drainage device
By introducing a clearing module and filter design into the medical chest cavity negative pressure drainage device, and using a pneumatic motor to crush blood clots or pus clots, the problem of drainage tube blockage is solved, and the smoothness of drainage and effective restoration of chest cavity pressure are achieved.
Patent Information
- Application Number
- CN202420401765.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-01
AI Technical Summary
In existing medical negative pressure pleural drainage devices, the drainage tube is prone to blockage due to blood clots or pus, which affects the restoration of intrathoracic pressure and lung expansion.
A medical chest cavity negative pressure drainage device including a drainage module was designed. A pneumatic motor drives a stirring component to rotate, crushing blood clots or pus in the drainage material. Combined with a filter screen, the uncrushed lumps are filtered to prevent blockage.
It effectively prevented drainage tube blockage, ensured unobstructed drainage, and promoted the recovery of intrathoracic pressure and lung expansion.
Smart Images
Figure CN222304474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to a medical chest negative pressure drainage device. Background Art
[0002] A medical chest negative pressure drainage device is a medical device used to treat fluid or gas in the chest cavity. It can drain the gas or fluid in the chest cavity to the outside of the body by inserting a drainage tube into the chest cavity, thereby reestablishing negative pressure in the chest cavity and promoting expansion and recovery of the lungs.
[0003] The medical chest negative pressure drainage device mainly includes a drainage tube, a fluid collection bottle connected to the drainage tube, and a negative pressure device. The negative pressure device generates negative pressure to introduce the fluid in the patient's chest cavity into the fluid collection bottle through the drainage tube. According to the number and function of the device body, the medical chest negative pressure drainage device can be divided into single-bottle, double-bottle and triple-bottle devices.
[0004] The single-bottle device is the simplest one. It only has one effusion bottle and can be used to drain a small amount of gas or liquid. In addition to an effusion bottle, the double-bottle device also has a water seal bottle, which can be used to drain a large amount of gas or liquid and prevent retrograde infection. In addition to an effusion bottle and a water seal bottle, the three-bottle device also has a pressure regulating bottle, which can be used to adjust the negative pressure in the chest cavity and observe the fluctuation of the water column.
[0005] The use of medical chest negative pressure drainage devices requires strict adherence to aseptic operation principles, maintaining the airtightness and patency of the drainage system, observing and recording the drainage volume, color, properties and water column fluctuations, and timely adjusting the drainage method and extubation timing according to the patient's condition.
[0006] With existing negative pressure chest drainage technology, blood clots, pus clots and other lumps may form in the drainage tube, resulting in poor or interrupted drainage, affecting the recovery of intrathoracic pressure and the expansion of the lungs. Utility Model Content
[0007] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a medical chest negative pressure drainage device which can prevent the drainage tube from being blocked.
[0008] The technical solution adopted by the utility model to solve the above problems is: a medical chest negative pressure drainage device, including a device body, the device body is provided with a liquid injection port, a drainage port and an exhaust port, the drainage port is connected to a dredging module, the dredging module is plugged into a drainage tube, and the exhaust port is connected to a negative pressure device through a negative pressure tube;
[0009] The dredging module comprises a pneumatic motor, the output shaft of the pneumatic motor is connected with a stirring component, and the pneumatic motor is connected with a compressed air source for driving.
[0010] Preferably: a first valve body is arranged above the dredging module.
[0011] Preferably: a second valve body is provided on the negative pressure pipe connected to the exhaust port.
[0012] Preferably: the dredging module is further provided with a filter screen near the drainage port, and the filter screen is wrapped with multiple layers of sterile gauze.
[0013] Preferably, the device body comprises a bottle stopper, the bottle stopper is plug-fitted to the device body, and the liquid injection port, drainage port and exhaust port are all arranged on the bottle stopper.
[0014] Preferably: a check valve is provided at one end of the drainage tube close to the puncture head.
[0015] Compared with the prior art, the utility model has the following advantages and effects:
[0016] The utility model adopts the design of the dredging module, and drives the pneumatic motor through the compressed air source to drive the stirring component to rotate to grind impurities such as blood clots or pus clots in the drainage material, thereby avoiding the blockage of the drainage tube during the patient's drainage process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1-2 It is a schematic structural diagram of a medical chest negative pressure drainage device according to an embodiment of the utility model.
[0018] Figure 3 It is a schematic structural diagram of the drainage tube according to an embodiment of the utility model.
[0019] Figure 4-5 It is a structural schematic diagram of the dredging module of an embodiment of the utility model.
[0020] Figure 6 It is a schematic diagram of the working principle of an embodiment of the utility model.
[0021] Figure numbers: device body 1, bottle stopper 11, liquid injection port 111, drainage port 112, exhaust port 113, dredging module 12, pneumatic motor 121, stirring component 122, filter 123, drainage tube 13, first valve body 131, check valve 132, negative pressure tube 14, second valve body 141. DETAILED DESCRIPTION
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0023] See also Figure 1-Figure 6The present embodiment is a medical chest negative pressure drainage device, comprising a device body 1, the device body 1 is provided with a liquid injection port 111, a drainage port 112 and an exhaust port 113, the drainage port 112 is connected to a dredging module 12, the dredging module 12 is plugged into a drainage tube 13, and the exhaust port 113 is connected to a negative pressure device through a negative pressure tube 14;
[0024] The dredging module 12 comprises an air motor 121 , the output shaft of the air motor 121 is connected to a stirring component 122 , and the air motor 121 is connected to a compressed air source for driving.
[0025] Specifically in this embodiment, taking a single bottle device as an example, the specific operations are as follows:
[0026] 1. First, inject sterile saline into the injection port 111 to the "0" water level line through a syringe, so that the extension tube connected to the drainage port 112 in the device is immersed, remove the syringe, disinfect the injection port 111 and seal it;
[0027] 2. Insert the dredging module 12 at the drainage port 112, and then connect the drainage tube 13 to the dredging module 12, the other end of the drainage tube 13 is connected to the outer end of the chest drainage tube 13 inserted into the patient's body, and the other end of the dredging module 12 is inserted into the drainage port 112;
[0028] 3. Connect one end of the negative pressure tube 14 to the exhaust port 113, insert the exhaust port 113 into the bottle stopper 11, connect the other end of the negative pressure tube 14 to the negative pressure device, turn on the negative pressure device to generate negative pressure;
[0029] 4. Fix the device body in a suitable position or hang the drainage bottle in a suitable position to drain;
[0030] 5. The accumulated fluid flowing out of the patient's chest cavity is processed by the dredging module 12 and finally collected into the device body 1 through the drainage tube 13.
[0031] According to the patient's condition and needs, the stirring power of the dredging module 12 is adjusted by adjusting the flow of the compressed air source, and the air pressure value of the negative pressure device is adjusted to achieve the best drainage effect. Medical staff need to observe and record the drainage volume, color, nature and the filling volume of impurities in the dredging module 12, and adjust the drainage method and the timing of extubation in time according to the patient's condition.
[0032] A first valve body 131 is provided above the dredging module 12. When replacing the drainage device, the first valve body 131 must be closed first to isolate the drainage part from the air. After the drainage device is replaced, the first valve body 131 can be reopened to continue the drainage operation.
[0033] The exhaust port 113 is connected to the negative pressure tube 14 and is provided with a second valve body 141. The second valve body 141 is a flow valve, and the size of the airflow between the device body and the negative pressure device is controlled by turning the knob thereon, thereby adjusting the drainage rate (generally, the drainage rate of pleural effusion is controlled at about 300 ml / h in clinical practice). In addition, when the drainage operation is completed, the second valve body 141 can be directly closed to cut off the airflow to prevent the negative pressure tube 14 from being contaminated by air.
[0034] The dredging module 12 is also provided with a filter screen 123 near the drainage port 112, and the filter screen 123 is wrapped with multiple layers of sterile gauze. The filter screen 123 is a honeycomb filter module, and its surface is covered with sterile gauze, which can intercept the lumps that are not minced by the dredging module 12 outside the device body. When the patient inhales, the negative pressure generated in the chest cavity can also make these lumps return to the dredging module 12 to be minced again, and finally collected into the drainage device after being filtered by the filter screen 123.
[0035] The device body 1 includes a bottle stopper 11, which is plugged and adapted with the device body 1, and the injection port 111, the drainage port 112 and the exhaust port 113 are all provided on the bottle stopper 11. The bottle stopper 11 and the bottle body are detachable structures, and the collected pleural effusion can be quickly poured out, which is convenient for medical staff to test the effusion sample and further understand the patient's pathological condition.
[0036] The drainage tube 13 is provided with a check valve 132 at one end close to the puncture head. The check valve 132 can prevent the patient's lungs from opening, prevent air or liquid from entering the chest cavity from the outside, and cause the possibility of pneumothorax or secondary infection.
[0037] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.
Claims
1. A medical chest negative pressure drainage device, characterized in that: The device comprises a device body, wherein the device body is provided with a liquid injection port, a drainage port and an exhaust port, the drainage port is connected to a dredging module, the dredging module is plugged into a drainage tube, and the exhaust port is connected to a negative pressure device through a negative pressure tube; The dredging module comprises a pneumatic motor, the output shaft of the pneumatic motor is connected with a stirring component, and the pneumatic motor is connected with a compressed air source for driving.
2. A medical chest negative pressure drainage device according to claim 1, characterized in that: A first valve body is arranged above the dredging module.
3. A medical chest negative pressure drainage device according to claim 1, characterized in that: The exhaust port is connected to the negative pressure pipe and a second valve body is arranged on the pipe.
4. A medical chest negative pressure drainage device according to claim 1, characterized in that: The dredging module is also provided with a filter screen near the drainage port, and the filter screen is wrapped with multiple layers of sterile gauze.
5. A medical chest negative pressure drainage device according to claim 1, characterized in that: The device body comprises a bottle plug, which is plugged and matched with the device body, and the liquid injection port, drainage port and exhaust port are all arranged on the bottle plug.
6. A medical chest negative pressure drainage device according to claim 1, characterized in that: A check valve is arranged at one end of the drainage tube close to the puncture head.