Mechanical oscillation drainage device

Abstract

The invention belongs to the technical field of medical instruments, and discloses a mechanical oscillation drainage device which comprises a reducer pipe and a drainage hose, a built-in pipe fitting is arranged at one end of the reducer pipe, the built-in pipe fitting is arranged in the drainage hose in a penetrating mode, drainage holes are formed in the tail end of the drainage hose and the tail end of the built-in pipe fitting, and a push rod and a swing arm are arranged in the built-in pipe fitting; the swing arm is fixed in the built-in pipe fitting through the flexible hinge, one end of the swing arm is connected with the hemispherical vibration head, the other end of the swing arm is flexibly connected with the push rod, the other end of the push rod is connected with the miniature linear resonance actuator, the miniature linear resonance actuator is arranged in the reducer pipe, and the reducer pipe is connected with the negative pressure suction assembly; the miniature linear resonance actuator drives the push rod to vibrate in a reciprocating mode, the swing arm is pulled, the hemispherical vibration head drives the end of the drainage hose to vibrate, a blood clot fiber grid is damaged, and hematoma blocks are liquefied. Suction force is provided through the negative pressure suction assembly, extravasated blood is discharged through the drainage hose, vibration drainage of hematoma blocks is achieved, and the application range of the device is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a mechanical oscillation drainage device. Background Art

[0002] Intracranial hematoma is caused by a variety of reasons, including ruptured blood vessels within the brain, followed by hematoma formation. Based on location, it can be divided into: epidural hematoma, subdural hematoma, intracerebral hematoma, and cerebral contusion with (scattered) hematoma formation. As the hematoma grows, it occupies space within the skull, leading to increased intracranial pressure and even brain herniation, which is the main cause of disability and death caused by intracranial hematoma. The main treatment method is to remove the hematoma through craniotomy or insert a drainage tube into the hematoma cavity to drain the hematoma and reduce intracranial pressure.

[0003] Compared to craniotomy to remove hematomas, hematoma cavity drainage surgery is simpler and less invasive. However, hematoma drainage is only successful when the hematoma has liquefied or is relatively soft. In the case of a solid hematoma, the drainage device cannot break up and liquefy the blood clot, making drainage difficult. This limits the scope of application of hematoma cavity drainage. Therefore, a drainage device is urgently needed to solve the above problems. This will enable more patients with intracranial hematomas to be cured through simpler, less invasive surgery. Summary of the Invention

[0004] The present invention aims to provide a mechanical oscillation drainage device to solve the problem that existing drainage devices are unable to drain hard blood clots and have a limited scope of application.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A mechanical oscillation drainage device includes a reducer and a drainage hose, the drainage hose is connected to the reducer, one end of the reducer is provided with a built-in pipe fitting, the built-in pipe fitting is passed through the drainage hose, and the ends of the drainage hose and the built-in pipe fitting are provided with multiple groups of drainage holes, a push rod and a swing arm are respectively provided in the built-in pipe fitting, the swing arm is fixed in the built-in pipe fitting by a flexible hinge, one end of the swing arm is connected to a hemispherical vibration head, the hemispherical vibration head is located in the end head of the drainage hose, a pressure sensor and an impedance detection electrode are respectively provided in the hemispherical vibration head, the other end of the swing arm is flexibly connected to the push rod, and the other end of the push rod is connected to a micro linear resonant actuator, the micro linear resonant actuator is arranged in the reducer, the end of the reducer is connected to a negative pressure suction component, the negative pressure suction component is arranged on a base plate, and a controller is provided on the base plate.

[0007] Furthermore, the negative pressure suction component includes a fluid collection bottle and a negative pressure pump. The fluid collection bottle, the negative pressure pump and the reducer are connected by a connecting pipe. The connection points are all provided with a connecting head, which is a threaded connection structure.

[0008] Furthermore, the bottom end of the liquid collection bottle is clamped in the rubber sleeve, the rubber sleeve is arranged in the groove, the groove is opened on the bottom plate, and the surface of the liquid collection bottle is printed with a liquid level line.

[0009] Furthermore, the built-in pipe includes a first fixed tube and a second fixed tube, the first fixed tube and the second fixed tube are connected by multiple groups of connecting soft rods, the swing arm is located in the second fixed tube, and the push rod is located in the first fixed tube.

[0010] Furthermore, the edge of the drainage hole is beveled, and the micro linear resonant actuator is covered with sealant.

[0011] The principle and beneficial effects of the technical solution are:

[0012] The present invention provides a mechanical oscillation drainage device. After the drainage hose is sent into the patient's intracranial hematoma through catheterization, the controller can control the micro linear resonant actuator to work, so that it drives the push rod to vibrate reciprocatingly, pulls the swing arm, and deforms through the flexible hinge, so that the swing arm can only swing back and forth in the built-in component, thereby increasing the vibration amplitude, driving the hemispherical vibration head to vibrate, and thus driving the end of the drainage hose to vibrate, destroying the blood clot fiber grid through the vibration, and cooperating with the drainage hole to cut the hematoma, thereby accelerating the liquefaction of the hematoma, and at the same time monitoring the pressure of the end in real time through the pressure sensor to avoid excessive squeezing, and cooperating with the impedance detection electrode to monitor the vibration anti-phase current change, judge the hematoma viscosity, dynamically adjust the frequency, and better liquefy the hematoma; the negative pressure suction component provides a certain suction force, and the liquefied blood congestion is sucked into the drainage hose through the drainage hole and discharged from the patient's skull, thereby realizing vibration drainage of the hematoma, and improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a mechanical oscillation drainage device according to the present invention;

[0014] Figure 2 This is a schematic diagram of the assembly structure of a mechanical oscillation drainage device of the present invention;

[0015] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0016] Figure 4 This is a cross-sectional view of a drainage hose and a reducer in a mechanical oscillating drainage device of the present invention;

[0017] The names of the corresponding marks in the accompanying drawings are: 1. Reducer; 2. Drainage hose; 3. Bottom plate; 4. Fluid effusion bottle; 5. Negative pressure pump; 6. Controller; 7. First fixed tube; 8. Push rod; 9. Miniature linear resonant actuator; 10. Connecting tube; 11. Connecting head; 12. Liquid level line; 13. Rubber sleeve; 14. Groove; 15. Drainage hole; 16. Hemispherical vibration head; 17. Pressure sensor; 18. Impedance detection electrode; 19. Flexible hinge; 20. Swing arm; 21. Connecting soft rod; 22. Second fixed tube. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0019] like Figures 1-4 As shown, a mechanical oscillation drainage device includes a reducer 1 and a drainage hose 2, the drainage hose 2 is connected to the reducer 1, the drainage hose 2 is a disposable consumable, one end of the reducer 1 is provided with a built-in pipe fitting, the built-in pipe fitting is passed through the drainage hose 2, the drainage hose 2 and the end of the built-in pipe fitting are provided with multiple groups of drainage holes 15, the built-in pipe fitting is respectively provided with a push rod 8 and a swing arm 20, the swing arm 20 is fixed in the built-in pipe fitting by a flexible hinge 19, the flexible hinge 19 is located at 1 / 3 of the end of the swing arm 20 connected to the push rod 8, the amplitude provided by the micro linear resonant actuator 9 can be amplified by the swinging of the swing arm 20, so as to facilitate the breaking of the hematoma, one end of the swing arm 20 is connected to the hemispherical vibration head 16, the hemispherical vibration head 16 is located in the end of the drainage hose 2, the hemispherical vibration head 16 is respectively provided with a pressure sensor 17 and an impedance detection electrode 18, and the pressure on the end is monitored in real time by the pressure sensor 17 , cooperate with the impedance detection electrode 18 to monitor the change of the vibration anti-phase current, judge the viscosity of the hematoma, dynamically adjust the frequency, and improve the working efficiency of the device; the other end of the swing arm 20 is flexibly connected to the push rod 8, and the other end of the push rod 8 is connected to the micro linear resonant actuator 9. The push rod 8 is a flexible material made of nickel-titanium alloy. It has superelastic properties and can efficiently transmit vibrations in a bent state, thereby efficiently transmitting the vibrations generated by the micro linear resonant actuator 9. The micro linear resonant actuator 9 is arranged in the reducer 1, and the micro linear resonant actuator 9 is sealed in medical silicone to avoid corrosion and short circuit by body fluids. A stable vibration source is provided by the micro linear resonant actuator 9, and its diameter is smaller than the inner diameter of the reducer 1, and the gap between it and the reducer 1 is at least 1 mm, which is convenient for blood congestion to pass through; the end of the reducer 1 is connected to the negative pressure suction component, and the negative pressure suction component is arranged on the base plate 3, and the base plate 3 is provided with a controller 6.

[0020] When in use, first, the drainage hose 2, which is a disposable consumable, is put on the outside of the built-in pipe fitting and connected and fixed with the reducer 1 to complete the assembly of the device. Then, the drainage hose 2 is implanted into the patient's intracranial hematoma through catheterization. The front end of the drainage hose 2 is a closed semicircular end to avoid damaging the patient's brain tissue. The reducer 1 is located outside the skull. After implantation, the micro linear resonant actuator 9 can be controlled by the controller 6 to start, so that it provides a vibration source. The micro linear resonant actuator 9 can reduce lateral vibration and reduce the impact of vibration on the patient's brain tissue. It drives the push rod 8 to vibrate, pulls the swing arm 20 to swing, and drives the hemispherical vibration head 16 to vibrate through the swing arm 20, and expands the micro linear resonant actuator 9. The amplitude provided makes the amplitude of the end of the drainage hose 2 reach 1.5mm, which can better break up the hematoma and liquefy it; at the same time, the pressure sensor 17 and the impedance detection electrode 18 monitor the pressure and vibration anti-phase current changes, analyze them through the controller 6, and control the vibration frequency of the micro linear resonant actuator 9, so that it can be adjusted in real time according to the breakage and liquefaction of the hematoma, thereby improving work efficiency; the liquefied hematoma turns into congestion, and under the action of the negative pressure suction component, enters the drainage hose 2 through the drainage hole 15 and is drained out of the skull. The hematoma that has not been broken up continues to approach the drainage hose 2 under the action of the increased intracranial pressure, prompting the hematoma to be continuously broken up and drained.

[0021] In this embodiment, the negative pressure suction component includes a fluid collection bottle 4 and a negative pressure pump 5. The fluid collection bottle 4 is connected to the negative pressure pump 5 and the reducer 1 through a connecting pipe 10. The connection points are all provided with a connector 11, which is a threaded connection structure. The negative pressure pump 5 provides a moderate negative pressure, which can help the drainage hose 2 to suck out the liquefied hematoma and improve efficiency. The connector 11 with a standardized threaded connection structure allows the device to be quickly connected, making it convenient for medical staff to operate.

[0022] In this embodiment, the bottom end of the fluid collection bottle 4 is clamped in the rubber sleeve 13, the rubber sleeve 13 is set in the groove 14, the groove 14 is opened on the bottom plate 3, and the liquid level line 12 is printed on the surface of the fluid collection bottle 4; the rubber sleeve 13 and the fluid collection bottle 4 are tightly fitted, so that the fluid collection bottle 4 is firmly placed on the bottom plate 3, and the amount of blood congestion drained can be recorded through the liquid level line 12.

[0023] In this embodiment, the built-in tubing includes a first fixed tube 7 and a second fixed tube 22, which are connected by multiple sets of connecting soft rods 21. The swing arm 20 is located in the second fixed tube 22, and the push rod 8 is located in the first fixed tube 7; the first fixed tube 7 and the second fixed tube 22 are made of hard materials and are used to support the swing arm 20 and the push rod 8 so that they can work normally. The connecting soft rod 21 is made of flexible material, but can only be bent and cannot be stretched. Combined with the push rod 8 made of nickel-titanium alloy, the built-in tubing can be appropriately bent with the drainage hose 2 without affecting the transmission of vibration, which is convenient for medical personnel to perform tube placement operations.

[0024] In this embodiment, the edge of the drainage hole 15 is beveled, and the micro linear resonant actuator 9 is covered with sealant; the beveled drainage hole 15 can prevent fibrin from being entangled; the sealant can seal the micro linear resonant actuator 9 to prevent liquid from entering the motor and causing damage to the device.

[0025] The above is only an embodiment of the present invention, and common knowledge such as the specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A mechanical oscillating drainage device, characterized in that: The invention comprises a reducer (1) and a drainage hose (2), wherein the drainage hose (2) is connected to the reducer (1), one end of the reducer (1) is provided with a built-in pipe fitting, the built-in pipe fitting is passed through the drainage hose (2), the drainage hose (2) and the end of the built-in pipe fitting are both provided with a plurality of drainage holes (15), a push rod (8) and a swing arm (20) are respectively provided in the built-in pipe fitting, the swing arm (20) is fixed in the built-in pipe fitting by a flexible hinge (19), one end of the swing arm (20) is connected to a hemispherical vibration head (16), and the hemispherical vibration head (16) is located in the end of the drainage hose (2), a pressure sensor (17) and an impedance detection electrode (18) are respectively provided in the hemispherical vibration head (16), the other end of the swing arm (20) is flexibly connected to the push rod (8), the other end of the push rod (8) is connected to the micro linear resonant actuator (9), the micro linear resonant actuator (9) is arranged in the reducer (1), the end of the reducer (1) is connected to the negative pressure suction component, the negative pressure suction component is arranged on the base plate (3), and the base plate (3) is provided with a controller (6).

2. A mechanical oscillation drainage device according to claim 1, characterized in that: The negative pressure suction assembly comprises a fluid collection bottle (4) and a negative pressure pump (5); the fluid collection bottle (4), the negative pressure pump (5) and the reducer (1) are connected via a connecting pipe (10); a connector (11) is provided at each connection point; and the connector (11) is a threaded connection structure.

3. The mechanical oscillation drainage device according to claim 2, characterized in that: The bottom end of the liquid collection bottle (4) is clamped in a rubber sleeve (13), the rubber sleeve (13) is arranged in a groove (14), the groove (14) is opened on the bottom plate (3), and a liquid level line (12) is printed on the surface of the liquid collection bottle (4).

4. The mechanical oscillation drainage device according to claim 1, characterized in that: The built-in pipe comprises a first fixed pipe (7) and a second fixed pipe (22); the first fixed pipe (7) and the second fixed pipe (22) are connected via a plurality of groups of connecting soft rods (21); the swing arm (20) is located in the second fixed pipe (22); and the push rod (8) is located in the first fixed pipe (7).

5. The mechanical oscillation drainage device according to claim 1, characterized in that: The edge of the drainage hole (15) is beveled, and the micro linear resonant actuator (9) is covered with sealant.

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