Antibacterial, temperature-measuring and pressure-measuring intracranial drainage device and using method thereof

Abstract

The invention discloses an antibacterial, temperature-measuring and pressure-measuring intracranial drainage device and a using method thereof.The antibacterial, temperature-measuring and pressure-measuring intracranial drainage device comprises a sensor module, a drainage module, a signal processing module and a suite, and the sensor module is arranged on the signal processing module; the sensor module is arranged at the front end of the drainage device, and intracranial pressure and intracranial temperature of a patient can be monitored in real time; the ventricular catheter in the drainage device contains a developing substance, so that the drainage condition can be clearly seen under CT (Computed Tomography); an antibacterial coating is arranged on the outer wall of the ventricular catheter in the drainage device, bacteria breeding can be inhibited in the operation process, and the risk of secondary infection of a patient is avoided; a metal rod does not need to be embedded in the side wall of a ventricular catheter, and the sensor module can be connected in a sleeved mode after the catheter core needle in the sleeve piece is arranged in an intracranial catheter. And the risk of retrograde infection of cerebrospinal fluid caused by rupture of the side wall is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an antibacterial, temperature-measuring and pressure-measuring intracranial drainage device and a method of using the same. Background Art

[0002] External ventricular drainage is one of the common surgical procedures in neurosurgery. In 2001, the annual number of external ventricular drainage surgeries in the United States exceeded 25,000. External ventricular drainage can reduce intracranial pressure, clear bloody or infected cerebrospinal fluid, and can also be used in conjunction with intracranial pressure probes for intracranial pressure monitoring. It is used in the treatment of various neurosurgical diseases such as brain trauma, cerebral hemorrhage, subarachnoid hemorrhage, intracranial infection, and hydrocephalus. However, at the same time, external ventricular drainage is also accompanied by many risks. Among them, intracranial infection related to external ventricular drainage is one of the most serious complications, and often leads to poor clinical outcomes. It is an important factor affecting the patient's prognosis. Therefore, how to accurately detect the patient's intracranial parameters and how to effectively prevent the occurrence of external ventricular drainage-related infections are key issues that neurosurgeons need to face during the perioperative period of external ventricular drainage.

[0003] The external ventricular drainage device with intracranial pressure sensor currently used in clinical practice (Johnson & Johnson Codman, France SOPHYSA) has many problems during surgery. 1. After the drainage tube is implanted in the ventricle, CT and other imaging examinations cannot know the specific location of the side hole area at the head end. The doctor can only judge the approximate location of the sensor head end through his experience, and the judgment of the drainage effect is poor; 2. In order to facilitate the insertion of the drainage tube into the ventricle, the side wall of the drainage tube is also provided with a metal support rod to facilitate puncturing the ventricle. After the puncture is in place, the metal support rod is removed from the side wall. Although the side seam of the silicone drainage tube is generally sealed, when the drainage tube is bent, the drainage fluid is easily leaked at the tear of the side wall, and bacteria can reversely enter the ventricular system through the leakage, forming a retrograde infection of cerebrospinal fluid; 3. No temperature measurement function; 4. The general drainage tube has no antibacterial coating and does not have an antibacterial effect. During clinical surgery, if the sensor is monitored in the patient's brain for too long (more than 3 days), a large number of bacteria will grow on the surface of the drainage tube, leading to secondary infection in the brain, causing encephalitis, meningitis, cerebral edema, etc. In severe cases, the patient may suffer from epileptic seizures, impaired consciousness, convulsions, coma, shock, etc. Summary of the invention

[0004] The purpose of the present invention is to provide an antibacterial, temperature-measuring and pressure-measuring intracranial drainage device to solve the problem that the sensor proposed in the above-mentioned background technology is prone to infection when monitoring intracranial for too long, and the drainage tube will produce a large number of bacteria when used in the skull, thereby causing intracranial infection.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An antibacterial, temperature-measuring and pressure-measuring intracranial drainage device comprises a sensor module 1, a drainage module 2, a signal processing module 3 and a kit 4. The sensor module 1 is arranged on the signal processing module 3. The kit 4 comprises a trocar 41, a core needle 42 and a catheter fixing clamp 43. When in use, the core needle 42 is inserted into the skull in cooperation with a ventricular catheter.

[0007] The sensor module 1 comprises a metal tube 11, an auxiliary platform 12, a pressure sensor 13, a temperature sensor 14 and a nylon tube 15. The auxiliary platform 12 is installed in the metal tube 11. The auxiliary platform 12 is provided with a groove 171 and a blind hole 172. The pressure sensor 13 is placed in the groove 172, and the temperature sensor 14 is buried in the blind hole 172. The front end of the pressure module 13 is a semicircular resin ball 16. The guide wires of the pressure sensor 12 and the temperature sensor 14 are covered by the nylon tube (15) and extend to the rear end, so as to transmit the signal at the front end of the sensor to the signal processing module end. The nylon tube 15 is inserted into the metal tube 11 and is bonded and sealed by a conical resin 18.

[0008] The drainage module 2 includes a ventricular catheter 21, a catheter connector 22, a triangular block 23, a Luer plug 24, a Luer connector 25 and a connecting belt 26, and the ventricular catheter 21 can be used interchangeably; the catheter connector 22 is covered in the triangular block 23; the triangular block 23 is a Y-type three-way interface; the Luer plug 24, the Luer connector 25 and the connecting belt 26 are standard parts connected to the triangular block 23; the sensor module 1 is placed at the head end of the drainage module 2; the head end of the ventricular catheter 21 in the drainage module 2 is closed and is a circular cone head 211; the front end of the ventricular catheter 21 has a drainage hole area 212 and a scale area 213; the drainage hole area 212 is 16 small holes evenly distributed around the tube wall; the ventricular catheter 21 contains a developing substance, and the cerebrospinal fluid drainage situation can be clearly seen under CT; the outer wall of the ventricular catheter 21 contains an antibacterial coating, which can inhibit the growth of bacteria during surgery and avoid the risk of secondary infection of patients. The rear end of the ventricular catheter 21 is connected to the triangular block 23, and the ventricular catheter 21 can be replaced and disassembled at any time.

[0009] The signal processing module 3 includes an upper shell 31, a lower shell 32, a PCB board 33 and a USB interface 34; the PCB board 33 includes a function of converting analog signals into digital signals and a signal method function; the material of the upper shell 31 and the lower shell 32 is medical grade ABS, and the upper and lower shells can be matched by pin holes or glue; the USB interface 34 is compatible with the back-end device interface, and the signal processing module 3 is connected to the sensor module 1 for use.

[0010] A method for using an antibacterial, temperature-measuring, and pressure-measuring intracranial drainage device comprises the following steps during an actual surgical operation:

[0011] S1; the doctor first inserts the ventricular catheter 21 into the skull through the stylet 42, removes the stylet 42, places the pagoda interface at the end of the cannula 41 on the ventricular catheter 21, and pierces the scalp to place the other end;

[0012] S2: The sensor module 1 is first extended from the catheter connector 22 through the triangular block 23, and then the sensor module 1 is slowly placed into the ventricular catheter 21, and the ventricular catheter 21 is fixed to the catheter connector 22, and the sensor probe is located near the leftmost hole in the drainage hole area 212 of the ventricular catheter 21, and then the catheter is fixed with the catheter fixing clip 43;

[0013] S3; drain the ventricular fluid through the ventricular catheter 21, and monitor the intraventricular status through the sensor module 1 and the signal processing module 3.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. A sensor module is provided at the front end of the drainage device of the present invention, which can monitor the patient's intracranial pressure and intracranial temperature in real time.

[0016] 2. The ventricular catheter in the drainage device contains contrast agent, and the drainage situation can be clearly seen under CT.

[0017] 3. The outer wall of the ventricular catheter in the drainage device contains an antibacterial coating, which can inhibit bacterial growth during surgery and avoid the risk of secondary infection for patients.

[0018] 4. When in use, there is no need to bury a metal rod in the side wall of the ventricular catheter. The stylet can be inserted into the intracranial catheter and then the sensor module can be connected. This avoids the risk of retrograde cerebrospinal fluid infection caused by rupture of the side wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the drainage module in use of the present invention;

[0020] Figure 2 This is a schematic diagram of the sensor module in use of the present invention;

[0021] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the planar structure of the sensor module of the present invention;

[0023] Figure 5 This is a schematic diagram of the drainage module accessory structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the kit accessories of the present invention;

[0025] Figure 7 It is a schematic diagram of a half-section structure of an information processing module of the present invention;

[0026] Figure 8 It is a schematic diagram of the split structure of the information processing module of the present invention.

[0027] In the figure: 1. sensor module; 11. metal tube; 12. auxiliary platform; 13. pressure sensor; 14. temperature sensor; 15. nylon tube; 171. groove; 172. blind hole; 2. drainage module; 21. ventricular catheter; 211. round cone head; 212. drainage hole area; 213. scale area; 22. catheter connector; 23. triangle block; 24. Luer plug; 25. Luer connector; 26. connecting belt; 3. signal processing module; 31. upper shell; 32. lower shell; 33. PCB board; 34. USB interface; 41. trocar; 42. core needle; 43. catheter fixing clamp. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] An antibacterial, temperature-measuring and pressure-measuring intracranial drainage device comprises a sensor module 1, a drainage module 2, a signal processing module 3 and a kit 4. The sensor module 1 is arranged on the signal processing module 3. The kit 4 comprises a trocar 41, a core needle 42 and a catheter fixing clamp 43. When in use, the core needle 42 is inserted into the skull in cooperation with a ventricular catheter.

[0030] The sensor module 1 comprises a metal tube 11, an auxiliary platform 12, a pressure sensor 13, a temperature sensor 14 and a nylon tube 15. The auxiliary platform 12 is installed in the metal tube 11. The auxiliary platform 12 is provided with a groove 171 and a blind hole 172. The pressure sensor 13 is placed in the groove 172, and the temperature sensor 14 is buried in the blind hole 172. The front end of the pressure module 13 is a semicircular resin ball 16. The guide wires of the pressure sensor 12 and the temperature sensor 14 are covered by the nylon tube (15) and extend to the rear end, so as to transmit the signal at the front end of the sensor to the signal processing module end. The nylon tube 15 is inserted into the metal tube 11 and is bonded and sealed by a conical resin 18.

[0031] The drainage module 2 includes a ventricular catheter 21, a catheter connector 22, a triangular block 23, a Luer plug 24, a Luer connector 25 and a connecting belt 26. The ventricular catheter 21 can be used interchangeably; the catheter connector 22 is coated in the triangular block 23; the triangular block 23 is a Y-shaped three-way interface; the Luer plug 24, the Luer connector 25 and the connecting belt 26 are standard parts connected to the triangular block 23; the sensor module 1 is placed at the head end of the drainage module 2; the head end of the ventricular catheter 21 in the drainage module 2 is closed and is a circular cone head 211; the front end of the ventricular catheter 21 has a drainage hole area 212 and a scale area 213; the drainage hole area 212 is 16 small holes evenly distributed around the tube wall; the ventricular catheter 21 contains a developing substance, and the cerebrospinal fluid drainage situation can be clearly seen under CT; the outer wall of the ventricular catheter 21 contains an antibacterial coating. It can inhibit the growth of bacteria during surgery and avoid the risk of secondary infection of patients. The rear end of the ventricular catheter is connected to the triangular block 23, and the catheter can be replaced and disassembled at any time.

[0032] The signal processing module 3 includes an upper shell 31, a lower shell 32, a PCB board 33 and a USB interface 34; the PCB board 33 includes a function of converting analog signals into digital signals and a signal method function; the material of the upper shell 31 and the lower shell 32 is medical grade ABS, and the upper and lower shells can be matched by pin holes or glue; the USB interface 34 is compatible with the back-end device interface, and the signal processing module 3 is connected to the sensor module 1 for use.

[0033] A method for using an antibacterial, temperature-measuring, and pressure-measuring intracranial drainage device, characterized in that, during an actual surgical operation, the method comprises the following steps:

[0034] S1; the doctor first inserts the ventricular catheter 21 into the skull through the stylet 42, removes the stylet 42, places the pagoda interface at the end of the cannula 41 on the ventricular catheter 21, and pierces the scalp to place the other end;

[0035] S2: The sensor module 1 is first extended from the catheter connector 22 through the triangular block 23, and then the sensor module 1 is slowly placed into the ventricular catheter 21, and the ventricular catheter 21 is fixed to the catheter connector 22, and the sensor probe is located near the leftmost hole in the drainage hole area 212 of the ventricular catheter 21, and then the catheter is fixed with the catheter fixing clip 43;

[0036] S3; drain the ventricular fluid through the ventricular catheter 21, and monitor the intraventricular status through the sensor module 1 and the signal processing module 3.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the invention and are not intended to limit the present invention. Without departing from the novel spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An antibacterial, temperature-measuring and pressure-measuring intracranial drainage device, characterized in that: The invention comprises a sensor module (1), a drainage module (2), a signal processing module (3) and a kit, wherein the sensor module (1) is arranged on the signal processing module (3), and the kit comprises a trocar (41), a stylet needle (42) and a catheter fixing clamp (43).

2. The antibacterial, temperature-measuring and pressure-measuring intracranial drainage device according to claim 1, characterized in that: The sensor module (1) comprises a metal tube (11), an auxiliary platform (12), a pressure sensor (13), a temperature sensor (14) and a nylon tube (15); the auxiliary platform (12) is installed in the metal tube (11); a groove (171) and a blind hole (172) are provided in the auxiliary platform (12); the pressure sensor (13) is placed in the groove (172); and the temperature sensor (14) is buried in the blind hole (172); the front end of the pressure module (13) is a semicircular resin ball (16); the guide wires of the pressure sensor (12) and the temperature sensor (14) are covered by the nylon tube (15) and extend to the rear end, so as to transmit the signal at the front end of the sensor to the signal processing module end; the nylon tube (15) is inserted into the metal tube (11) and is bonded and sealed by a conical resin (18).

3. The antibacterial, temperature-measuring and pressure-measuring intracranial drainage device according to claim 1, characterized in that: The drainage module (2) comprises a ventricular catheter (21), a catheter connector (22), a triangular block (23), a Luer plug (24), a Luer connector (25) and a connecting belt (26); the ventricular catheter (21) can be used interchangeably; the catheter connector (22) is wrapped in the triangular block (23); the triangular block (23) is a Y-shaped three-way interface; the Luer plug (24), the Luer connector (25) and the connecting belt (26) are standard parts and are compatible with the triangular block (23). The sensor module (1) is placed at the head end of the drainage module (2); the head end of the ventricular catheter (21) in the drainage module (2) is closed and is a round cone head (211); the front end of the ventricular catheter (21) is provided with a drainage hole area (212) and a scale area (213); the drainage hole area (212) is 16 small holes evenly distributed around the tube wall; the ventricular catheter (21) contains a developing substance; the outer wall of the ventricular catheter (21) contains an antibacterial coating.

4. The antibacterial, temperature-measuring and pressure-measuring intracranial drainage device according to claim 1, characterized in that: The signal processing module (3) comprises an upper shell (31), a lower shell (32), a PCB board (33) and a USB interface (34); the PCB board (33) comprises a function of converting analog signals into digital signals and a signal method function; the material of the upper shell (31) and the lower shell (32) is medical-grade ABS, and the upper and lower shells can be matched by pin-hole matching or glue bonding; the USB interface (34) is compatible with the device interface at the back end, and the signal processing module (3) is connected to the sensor module (1) for use.

5. A method for using an antibacterial, temperature-measuring, and pressure-measuring intracranial drainage device, characterized in that: The actual surgical procedure includes the following steps: S1; the doctor first inserts the ventricular catheter (21) into the skull through the stylet needle (42), removes the stylet needle (42), covers the end of the cannula needle (41) with the pagoda interface on the ventricular catheter (21), and pierces the scalp to place the other end; S2: First, the sensor module (1) is passed through the triangular block (23) and extended from the catheter connector (22), and then the sensor module (1) is slowly inserted into the ventricular catheter (21), and the ventricular catheter (21) is fixed on the catheter connector (22), and the sensor probe is located near the leftmost hole in the drainage hole area (212) of the ventricular catheter (21), and then the catheter is fixed with a catheter fixing clamp (43); S3: drain the ventricle fluid through the ventricular catheter (21), and monitor the intraventricular status through the sensor module (1) and the signal processing module (3).

Images