Liquid taking and sample reserving device for neurology department

Abstract

The utility model discloses a liquid taking and sample reserving device for the neurology department, which comprises a three-way assembly for shunting, a first pipeline for guiding flow, a puncture needle for puncturing, a second pipeline for guiding flow, a pressure gauge for measuring pressure, a third pipeline for guiding flow and a sampling assembly for sampling cerebrospinal fluid, the first pipeline is located on one side of the three-way assembly, one end of the first pipeline is connected to a middle connector of the three-way assembly, the puncture needle is connected to the other end of the first pipeline, the second pipeline is located at one end of the three-way assembly, one end of the second pipeline is connected to a connector at one end of the three-way assembly, and the pressure gauge is connected to the other end of the second pipeline. According to the cerebrospinal fluid sampling device, before cerebrospinal fluid in the sampling bottle is taken out, the cerebrospinal fluid does not make contact with air, and therefore the possibility that the cerebrospinal fluid is polluted is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a fluid sampling and sample retention device for neurology. Background Art

[0002] Pressure measurement is required after a lumbar puncture by internal medicine. Cerebrospinal fluid is collected through the puncture needle and enters the manometry instrument through the pressure measuring tube for pressure measurement. The physician should perform pressure measurement after puncture. The cerebrospinal fluid pressure of a normal person in a supine position is 0.78-1.76 kPa. When any lesion increases the volume of brain tissue or cerebrospinal fluid, the cerebrospinal fluid pressure may increase. In addition to traditional pressure measurement, partial reserved sampling of cerebrospinal fluid is also required.

[0003] Chinese patent publication number CN211094283U discloses a clinical liquid collection device for neurology, comprising a liquid storage bottle, a cover plate on the top of which a micro air pump is fixedly mounted, an infusion tube is fixedly connected to the top of the cover plate, a sealing gasket is fixedly mounted on the bottom of the cover plate, a plurality of fixing pins are fixedly mounted on the top of the liquid storage bottle, a limit seat is fixedly mounted on one side of the fixing pins, a plurality of fixing grooves are fixedly mounted on the bottom of the cover plate, and the fixing pins are adapted to the corresponding fixing grooves, and a first groove is opened on the inner wall of one side of the fixing groove. The utility model has a reasonable design and can increase the sealing between the cover plate and the liquid storage bottle by squeezing the sealing gasket in the vertical and horizontal directions, thereby facilitating the cleaning and sealing installation of the liquid storage bottle.

[0004] However, the above device can only be used to collect cerebrospinal fluid in actual use, and has a single function. After the cerebrospinal fluid is punctured and pressure measured, it needs to be punctured again to collect the fluid, which increases the pain of the patient. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art that it can only collect cerebrospinal fluid, has a single function, and needs to be punctured and collected again after puncturing and measuring the pressure of the cerebrospinal fluid, which increases the pain of the patient.

[0006] A fluid sampling and sampling device for neurology is proposed, comprising a three-way assembly for shunting, a first pipe for diverting, a puncture needle for puncture, a second pipe for diverting, a pressure gauge for pressure measurement, a third pipe for diverting, and a sampling assembly for cerebrospinal fluid sampling, wherein the first pipe is located on one side of the three-way assembly, and one end of the first pipe is connected to the middle interface of the three-way assembly, the puncture needle is connected to the other end of the first pipe, the second pipe is located at one end of the three-way assembly, and one end of the second pipe is connected to the interface at one end of the three-way assembly, the pressure gauge is connected to the other end of the second pipe, one end of the third pipe is connected to the interface at the other end of the three-way assembly, and the other end of the third pipe is connected to the sampling assembly.

[0007] In the technical solution of the present invention, after the puncture needle is inserted into the patient's body and the cerebrospinal fluid flows out, the first baffle and the second baffle are rotated by the limiting component to allow the cerebrospinal fluid flowing into the tee to flow into the second pipe, so that the pressure gauge can measure the pressure. After the pressure gauge measures the patient's cerebrospinal fluid pressure to meet the standard, the first baffle and the second baffle are rotated again by the limiting component to allow the cerebrospinal fluid sample flowing into the tee to flow into the third pipe, and then flow into the sampling bottle through the third pipe. In this way, after the pressure is measured in advance, the cerebrospinal fluid sample is allowed to flow into the sampling bottle, so as to solve the shortcomings mentioned in the technical background that only a single cerebrospinal fluid can be collected, the use function is single, and after the cerebrospinal fluid is punctured and pressure measured, it is necessary to puncture and collect again, which increases the pain of the patient.

[0008] The preferred technical solution of the present utility model is that the three-way assembly includes a three-way assembly, a fixed shaft, a rotating shaft, a torsion spring, a first baffle, a second baffle and a limit assembly. The fixed shaft is located inside the three-way assembly and one end of the fixed shaft is connected to the three-way assembly. The rotating shaft is arranged inside the three-way assembly and the rotating shaft is rotatably connected to the fixed shaft. The torsion spring is arranged inside the rotating shaft and sleeved on the fixed shaft, and the two ends of the torsion spring are respectively connected to the fixed shaft and the rotating shaft. The first baffle and the second baffle are respectively located on both sides of the rotating shaft, and one end of the first baffle and the second baffle are both connected to the rotating shaft. The limit assembly is located on one side of the three-way assembly, and the limit assembly is connected to the rotating shaft. Before the cerebrospinal fluid flows into the sampling bottle, the liquid inlet of the third pipe can be blocked by the first baffle and the second baffle, and then the cerebrospinal fluid sample can flow into the interior of the second pipe. After the pressure gauge is measured, the cerebrospinal fluid can be allowed to flow into the interior of the sampling bottle through the first baffle and the second baffle to avoid the need for a second puncture on the patient.

[0009] In a preferred embodiment of the technical solution of the present invention, sealing plugs are provided on the interfaces at both ends and the middle section of the tee. After the cerebrospinal fluid sample sampling is completed, the first pipe, the second pipe and the third pipe can be pulled out from the tee, and then the sealing plugs can be inserted into the interfaces at both ends and the middle section of the tee to prevent the cerebrospinal fluid sample remaining inside the tee from leaking out of the tee, thereby causing contamination.

[0010] The preferred technical solution of the present invention is that the limit assembly includes an internal gear, a rotating shaft, a rotating handle, a limit rod, a guide rod and a compression spring. The internal gear is located on one side of the tee and the internal gear is connected to the tee. The rotating shaft is transversely arranged at the axial position of the internal gear, and one end of the rotating shaft passes through the tee and is connected to the rotating shaft. The other end of the rotating shaft is connected to the rotating handle. The rotating handle is located on one side of the internal gear, and a slot is transversely provided inside the rotating handle. The limit rod is slidably connected to the inside of the slot of the rotating handle, and the guide rod is transversely connected to the inside of the slot of the rotating handle. The compression spring is arranged inside the limit rod and the compression spring is sleeved on the guide rod. When the tee needs to be diverted, it is only necessary to manually press the limit rod and then rotate the rotating handle. The rotating wrench will drive the first baffle and the second baffle to rotate when it is rotated. After the first baffle and the second baffle have finished rotating, the positions of the first baffle and the second baffle can be fixed by the limit pin to prevent the first baffle and the second baffle from reversing.

[0011] In a preferred embodiment of the technical solution of the present invention, one end of the third pipe is connected to a quick interface, the sampling assembly is connected to the third pipe through the quick interface, and the ball valve is plugged into the quick interface, so when the sampling bottle needs to be replaced, it can be quickly replaced.

[0012] The preferred technical solution of the utility model is that the sampling assembly includes a ball valve, a sampling bottle, a drain cap, a sealing cap and a sealing plate. The ball valve is arranged on one side of the quick interface, and one end of the ball valve is inserted into the inside of the quick interface. The water inlet of the sampling bottle is threadedly connected to the other end of the ball valve. The drain cap is located at the other end of the sampling bottle and the drain cap is connected to the sampling bottle. The sealing cap is located on one side of the drain cap and is rotatably connected to the drain cap, and the inside of the sealing cap is laterally connected with a sealing plate. The sampling bottle is made of transparent material, and two through holes are provided on the sealing plate. There are also two through holes on the cap body of the drain cap. Therefore, when it is necessary to take out the cerebrospinal fluid sample, the two through holes on the sealing plate can be aligned with the two through holes on the drain cap, and the cerebrospinal fluid can flow out. The operation is simple and effective.

[0013] In a preferred embodiment of the technical solution of the present invention, the sampling bottle is provided with scale lines on the bottle body. After the cerebrospinal fluid sample flows into the sampling bottle, the medical staff can use the scale lines on the bottle body as a reference to observe the content of the cerebrospinal fluid sample that has flowed into the sampling bottle, thereby avoiding insufficient cerebrospinal fluid sample and the need for a second puncture.

[0014] In the preferred embodiment of the technical solution of the present invention, a sealing plug is also provided at the liquid inlet of the ball valve. After the cerebrospinal fluid sample enters the sampling cavity and the ball valve is closed at the same time, the sealing plug can be inserted into the liquid inlet of the ball valve to prevent the cerebrospinal fluid remaining at the liquid inlet of the ball valve from dripping to the outside and causing contamination.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Before sampling the patient's cerebrospinal fluid, the utility model can allow the cerebrospinal fluid to flow to the pressure gauge through the three-way component. After the pressure is measured by the pressure gauge, the cerebrospinal fluid is guided to the interior of the sampling component. The sampling and pressure measurement can be completed at one time, so as to avoid the need for a second puncture on the patient. Moreover, the cerebrospinal fluid inside the sampling bottle will not come into contact with the air before being taken out, thereby avoiding the possibility of cerebrospinal fluid contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a fluid sampling device for neurology;

[0018] Figure 2 This is a schematic diagram of the structure of a three-way component of a fluid sampling and retention device for neurology;

[0019] Figure 3 A schematic diagram of the internal structure of a three-way assembly of a neurological fluid sampling device (the three-way assembly is a whole, with one section removed to show the internal structure).

[0020] Figure 4 A schematic diagram of the fixed and rotating shafts of a three-way assembly for a neurological fluid sampling device (the three-way assembly is a single piece, with one section removed to reveal the internal structure).

[0021] Figure 5 A schematic diagram of the coordination of the three-way assembly and the limiter assembly of a neurological fluid sampling and retention device (the three-way assembly is a whole, with one section removed to show the internal structure).

[0022] Figure 6 This is a schematic diagram of the structure of a limiting component of a fluid sampling device for neurology;

[0023] Figure 7 This is a schematic diagram of the coordination of the third pipeline and sampling component of a neurological fluid sampling device;

[0024] Figure 8 This is a schematic diagram of the structure of a sampling component of a fluid sampling device for neurology;

[0025] Figure 9 A schematic diagram of the sealing cap and discharge cap structure of a neurological fluid sampling device (the discharge cap is a whole, with a piece removed to show the internal structure);

[0026] Figure 10 This is a schematic diagram of the structure of a discharge cap of a neurological fluid sampling device;

[0027] Figure 11 This is a schematic diagram of the structural coordination of a sealing cap and a sealing plate of a neurological fluid sampling and retention device;

[0028] In the figure: 1 - Tee assembly, 11 - Tee. 12 - Fixed shaft, 13 - Rotating shaft, 14 - Torsion spring, 15 - First baffle, 16 - Second baffle, 2 - First pipeline, 3 - Puncture needle, 4 - Second pipeline, 5 - Pressure gauge, 6 - Third pipeline, 61 - Quick connector, 7 - Sampling assembly, 71 - Ball valve, 72 - Sampling bottle, 73 - Discharge cap, 74 - Sealing cap, 75 - Sealing plate, 76 - Scale mark, 8 - Limit assembly, 81 - Internal gear, 82 - Rotating shaft, 83 - Rotating handle, 84 - Limit rod, 85 - Guide rod, 86 - Compression spring, 9 - Sealing plug. DETAILED DESCRIPTION

[0029] The following is a combination of the appended examples of the present invention Figure 1-11 , the technical solutions in the embodiments of the present utility model are described in detail.

[0030] like Figure 1 As shown, a fluid sampling and sampling device for neurology includes a three-way assembly 1 for diversion, a first pipe 2 for diversion, a puncture needle 3 for puncture, a second pipe 4 for diversion, a pressure gauge 5 for pressure measurement, a third pipe 6 for diversion and a sampling assembly 7 for cerebrospinal fluid sampling. The three-way assembly 1 includes a three-way 11, the first pipe 2 is located on one side of the three-way 11, and the first pipe 2 is horizontally arranged in the middle of the three-way 11, one end of the first pipe 2 is plugged into the middle interface of the three-way 11, the puncture needle 3 is located on one side of the first pipe 2, and the end of the puncture needle 3 is plugged into the other end of the first pipe 2.

[0031] like Figure 1 As shown, after the puncture needle 3 punctures the patient, the cerebrospinal fluid flowing in through the puncture needle 3 will flow into the interior of the first pipe 2 after being guided by the puncture needle 3. Since the other end of the first pipe 2 is connected to the tee 11, the cerebrospinal fluid flowing into the first pipe 2 will flow into the interior of the tee 11. The second pipe 4 is arranged at one end of the tee 11 according to the length direction of the tee 11, and one end of the second pipe 4 is plugged into the tee 11. Therefore, the cerebrospinal fluid flowing into the interior of the tee 11 can flow into the interior of the second pipe 4. The pressure gauge 5 is arranged at one end of the second pipe 4, and the pressure gauge 5 is plugged into the second pipe 4.

[0032] like Figure 1As shown, the cerebrospinal fluid flowing into the second pipe 4 will gradually flow to the position of the pressure gauge 5 until the cerebrospinal fluid contacts the pressure gauge 5, and the pressure gauge 5 can measure the pressure of the cerebrospinal fluid. The third pipe 6 is arranged at the other end of the tee 11 according to the length direction of the tee 11, and one end of the third pipe 6 is plugged into the tee 11. Therefore, after the cerebrospinal fluid flows into the tee 11, the cerebrospinal fluid can also flow into the interior of the third pipe 6 under the guidance of the tee 11. The other end of the third pipe 6 is plugged with a sampling component 7. Therefore, the cerebrospinal fluid flowing into the third pipe 6 can flow into the interior of the sampling component 7.

[0033] like Figure 2-4 As shown, the tee assembly 1 includes a tee 11, a fixed shaft 12, a rotating shaft 13, a torsion spring 14, a first baffle 15, a second baffle 16 and a limit assembly 8. The fixed shaft 12 is horizontally arranged at the bottom of the inside of the tee 11, and one end of the fixed shaft 12 is bonded to the inner wall of the tee 11. The rotating shaft 13 is also arranged inside the tee 11, and the rotating shaft 13 is rotatably connected to the fixed shaft 12. Therefore, when necessary, the rotating shaft 13 can rotate forward or reverse with the axis of the fixed shaft 12 as the center of the circle. The torsion spring 14 is arranged inside the rotating shaft 13 according to the length direction of the rotating shaft 13, and the torsion spring 14 is sleeved on the fixed shaft 12, and the two ends of the torsion spring 14 are respectively inserted into the fixed shaft 12 and the rotating shaft 13.

[0034] like Figure 2-4 As shown, when the rotating shaft 13 rotates, the rotating shaft 13 will drive one end of the torsion spring 14 to rotate, and the other end of the torsion spring 14 is inserted into the fixed shaft 12. Therefore, when the rotating shaft 13 drives one end of the torsion spring 14 to rotate, the other end of the torsion spring 14 will not rotate. At this time, the torsion spring 14 will be deformed and start to accumulate force under the drive of the rotating shaft 13. The first baffle 15 and the second baffle 16 are both horizontally arranged inside the tee 11, and the first baffle 15 and the second baffle 16 are respectively located on both sides of the rotating shaft 13. One end of the first baffle 15 and the second baffle 16 are both bonded to the rotating shaft 13. Therefore, when the rotating shaft 13 rotates, the rotating shaft 13 will drive the second baffle 16 and the first baffle 15 to rotate synchronously.

[0035] like Figure 2-4As shown, the angle between the first baffle 15 and the second baffle 16 is an acute angle. Therefore, when the first baffle 15 contacts the inner wall of the tee 11, the second baffle 16 will block the water path of the second pipe 4, and when the second baffle 16 contacts the inner wall of the tee 11, the first baffle 15 will block the water path of the third pipe 6, thereby ensuring that the cerebrospinal fluid flowing into the inside of the tee 11 can flow into the second water path and the third water path respectively. The limit assembly 8 is vertically arranged on one side of the tee 11, and the rotating handle 83 of the limit assembly 8 is connected to the rotating shaft 13 through the rotating shaft 82. Therefore, the rotating handle 83 can be manually rotated when needed. When the rotating handle 83 rotates in the forward or reverse direction, the rotating shaft 13 can be driven to rotate synchronously through the rotating shaft 82.

[0036] like Figure 2-4 As shown, sealing plugs 9 are provided on the two end interfaces and the middle interface of the tee 11. The sealing plug 9 is sleeved on the tee 11. After the cerebrospinal fluid sampling is completed and the first pipe 2, the second pipe 4 and the third pipe 6 are pulled out from the tee 11, the sealing plug 9 can be inserted into the interior of the two end interfaces and the middle interface of the tee 11 to block the liquid inlet in the middle section of the tee 11 and the liquid outlet at both ends of the tee 11, so as to prevent the cerebrospinal fluid remaining in the tee 11 from dripping from the inside of the tee 11 to the outside during the movement of the tee 11 and polluting the environment.

[0037] like Figure 5-6 As shown, the limit assembly 8 includes an internal gear 81, a rotating shaft 82, a rotating handle 83, a limit rod 84, a guide rod 85 and a compression spring 86. The internal gear 81 is vertically arranged on one side of the tee 11, and the internal gear 81 is bonded to the outer wall of the tee 11. The rotating shaft 82 is horizontally arranged at the axial position of the internal tooth path, and one end of the rotating shaft 82 passes through the internal gear 81 and the outer wall of the tee 11 and is bonded to the end face of the rotating shaft 13. Therefore, no matter whether the rotating shaft 82 rotates forward or reverse, it can drive the rotating shaft 13 to rotate synchronously, and then drive the first baffle 15 and the second baffle 16 to rotate forward or reverse synchronously through the rotating shaft 13. The rotating handle 83 is vertically arranged at the other end of the rotating shaft 82.

[0038] like Figure 5-6 As shown, the end face of the rotating shaft 82 is bonded to the end face of the rotating handle 83, so when the rotating handle 83 is rotated, the rotating handle 83 can drive the rotating shaft 13 to rotate synchronously through the rotating shaft 82. A groove is horizontally opened on the end face of the rotating handle 83 close to one end of the rotating shaft 82, and the limit rod 84 is slidably connected to the inside of the groove, and the bottom end of the limit rod 84 is inserted into the slot of the internal gear 81. Therefore, when needed, the limit rod 84 can be manually pressed by hand. After the top end of the limit rod 84 is pressed into the inside of the rotating handle 83, the bottom end of the limit rod 84 will also be squeezed out from the slot of the internal gear 81, and the rotating handle 83 can be rotated at this time.

[0039] like Figure 5-6 As shown, after the rotating handle 83 has been rotated, the bottom end of the limit rod 84 can be inserted into the gap of the internal gear 81 again. At this time, the limit rod 84 will fix the position of the rotating shaft 13 through the rotating handle 83 and the rotating shaft 82 to prevent the rotating shaft 13 from continuing to rotate. The guide rod 85 is connected to the inside of the groove of the rotating handle 83 along the length direction of the groove, and one end of the guide rod 85 is adhered to the inner wall of the groove of the rotating handle 83, and the other end of the guide rod 85 is slidably connected to the inside of the limit rod 84. Therefore, when the limit rod 84 slides inside the groove of the rotating handle 83, the guide rod 85 can guide and fix the limit rod 84 to prevent the limit rod 84 from falling out of the groove of the rotating handle 83.

[0040] like Figure 5-6 As shown, and to prevent the limit rod 84 from being unable to be correctly inserted into the gap of the internal gear 81, a compression spring 86 is arranged inside the limit rod 84 and the compression spring 86 is sleeved on the guide rod 85. Therefore, when the limit rod 84 is manually pressed into the interior of the rotating handle 83, the limit rod 84 will synchronously press the compression spring 86. At this time, the compression spring 86 will be deformed under the squeezing of the limit rod 84 and begin to accumulate force. Therefore, after the limit rod 84 is released, the compression spring 86 will use the accumulated force to bounce the limit rod 84 back to its original position, that is, the gap of the internal gear 81, to fix the position of the rotating shaft 13.

[0041] like Figure 7-10 As shown, the sampling assembly 7 includes a ball valve 71, a sampling bottle 72, a discharge cap 73, a sealing cap 74 and a sealing plate 75. One end of the third pipe 6 is plugged into the tee 11, and the other end of the third pipe 6 is plugged into a quick interface. The ball valve 71 is connected to the third pipe 6 through the quick interface. Therefore, after the cerebrospinal fluid flows into the interior of the third pipe 6, it will continue to flow until it flows into the interior of the ball valve 71. Because the ball valve 71 is plugged into the interior of the quick interface, when the sampling bottle 72 and the ball valve 71 need to be replaced, the sampling bottle 72 and the ball valve 71 can be unplugged from the quick interface, and then replaced with a new sampling bottle 72 and ball valve 71. The operation is simple and effective.

[0042] like Figure 7-10 As shown, the ball valve 71 is arranged on one side of the quick interface, and one end of the ball valve 71 is inserted into the interior of the quick interface, and the water inlet of the sampling bottle 72 is threadedly connected to the other end of the ball valve 71. Therefore, after the ball valve 71 is opened, the cerebrospinal fluid flowing into the interior of the ball valve 71 will continue to flow forward until it flows into the interior of the sampling bottle 72 through the liquid inlet of the sampling bottle 72. The sampling bottle 72 is threadedly connected to the ball valve 71. Therefore, when the ball valve 71 needs to be replaced, the ball valve 71 can be directly unscrewed from the sampling bottle 72 and then replaced. The drain cap 73 is located at the liquid outlet at the other end of the sampling bottle 72, and the drain cap 73 is bonded to the sampling bottle 72, and two through holes are provided at the liquid outlet of the drain cap 73.

[0043] like Figure 7-10 As shown, after the sampling is completed, the cerebrospinal fluid inside the sampling bottle 72 can flow out through the drain cap 73. The sealing cap 74 is located on one side of the drain cap 73. One end of the drain cap 73 is connected to the sampling bottle 72, and the other end of the drain cap 73 is inserted into the interior of the sealing cap 74, and the sealing cap 74 is rotatably connected to the drain cap 73. The interior of the sealing cap 74 is laterally connected to a sealing plate 75, and the sealing plate 75 is bonded to the interior of the sealing cap 74. Therefore, when the sealing cap 74 rotates, the sealing cap 74 can drive the sealing plate 75 to rotate synchronously. The sealing plate 75 also has two through holes. Therefore, after the through holes on the sealing plate 75 are aligned with the through holes on the drain cap 73, the cerebrospinal fluid flowing into the drain cap 73 can flow out of the drain cap 73 and the sealing cap 74 through the through holes on the sealing plate 75.

[0044] like Figure 7-10 As shown, the body of the sampling bottle 72 is provided with scale lines. Therefore, after the cerebrospinal fluid sample flows into the sampling bottle 72, the medical staff can use the scale lines on the body of the sampling bottle 72 as a reference to observe the content of the cerebrospinal fluid sample that has flowed into the sampling bottle 72, so as to avoid insufficient cerebrospinal fluid sample, which requires a second puncture. The liquid inlet of the ball valve 71 is also provided with a sealing plug 9. After the cerebrospinal fluid sample enters the sampling bottle and the ball valve 71 is closed at the same time, the sealing plug 9 can be inserted into the liquid inlet of the ball valve 71 to prevent the cerebrospinal fluid remaining at the liquid inlet of the ball valve 71 from dripping to the outside and causing contamination.

[0045] The movement process of this embodiment: before using the puncture needle 3 for puncture, the limit rod 84 can be manually pressed until the limit rod 84 is pressed out of the gap of the internal gear 81, and then the rotating handle 83 can be rotated forward. By rotating the handle 83 and the rotating shaft 82, the rotating shaft 13 is driven to rotate forward until the length direction of the second baffle 16 is parallel to the length direction of the tee 11, and the second baffle 16 points to the pressure gauge 5, and the first baffle 15 is erected and the first baffle 15 points obliquely upward. Then, the limit rod 84 can be released. After the limit rod 84 is bounced to the inside of the gap of the internal gear 81 by the compression spring 86, the position on the patient's body that needs puncture can be disinfected, and then the puncture needle 3 can be inserted into the patient's body. After the cerebrospinal fluid flows out, the cerebrospinal fluid will flow to the inside of the second pipe 4 under the guidance of the first baffle 15 and the second baffle 16.

[0046] Until the cerebrospinal fluid flows to the position of the pressure gauge 5, at which time the pressure gauge 5 will start to measure the cerebrospinal fluid pressure. After the patient's cerebrospinal fluid sample meets the standard, the limit rod 84 can be manually pressed again. At this time, the torsion spring 14 will drive the rotating shaft 13 and the rotating shaft 82 to rotate in the opposite direction, and then drive the rotating handle 83 to rotate through the rotating shaft 82 until the length direction of the first baffle 15 is parallel to the length direction of the tee 11, and the tee 11 is directed in the direction of the sampling bottle 72, and the second baffle 16 is erected and the second baffle 16 is directed obliquely upward, and after the rotating handle 83 stops rotating in the opposite direction, the limit rod 84 can be released. At this time, the limit rod 84 will be bounced into the gap of the internal gear 81 by the compression spring 86, and then the cerebrospinal fluid flowing into the inside of the tee 11 will flow to the inside of the second pipe 4, and the ball valve 71 is in the open state.

[0047] Therefore, the cerebrospinal fluid flowing into the second pipe 4 will flow into the sampling bottle 72 again through the ball valve 71. After the medical staff compares the scale line and finds that the cerebrospinal fluid sample flowing into the sampling bottle 72 is sufficient, they can close the ball valve 71 and remove the puncture needle 3 from the patient's body. After closing the ball valve 71, the ball valve 71 can be unplugged from the quick interface, and then after inserting the sealing plug 9 into the liquid inlet of the ball valve 71, the sampling bottle 72 can be moved. After moving to the desired position, the sealing cap 74 can be rotated until the through hole on the sealing plate 75 is aligned with the through hole on the discharge cap 73, and the cerebrospinal fluid inside the sampling bottle 72 will flow out.

[0048] The above embodiments are only for illustrating the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A device for collecting and retaining fluids for neurology, characterized by: The invention comprises a three-way assembly (1) for diversion, a first pipe (2) for diversion, a puncture needle (3) for puncture, a second pipe (4) for diversion, a pressure gauge (5) for pressure measurement, a third pipe (6) for diversion and a sampling assembly (7) for cerebrospinal fluid sampling, wherein the first pipe (2) is located on one side of the three-way assembly (1), and one end of the first pipe (2) is connected to the middle interface of the three-way assembly (1), the puncture needle (3) is connected to the other end of the first pipe (2), the second pipe (4) is located at one end of the three-way assembly (1), and one end of the second pipe (4) is connected to the middle interface of the three-way assembly (1). On the interface at one end of the tee assembly (1), the pressure gauge (5) is connected to the other end of the second pipe (4), and the interface at the other end of the tee assembly (1) is connected to one end of the third pipe (6). The other end of the third pipe (6) is connected to the sampling assembly (7). The limiting assembly (8) includes an internal gear (81), a rotating shaft (82), a rotating handle (83), a limiting rod (84), a guide rod (85) and a compression spring (86). The internal gear (81) is located on one side of the tee (11) and the internal gear (81) is connected to the tee (11). The rotating shaft (82) is arranged transversely at the axis position of the internal gear (81). The rotating shaft (82) is connected to the rotating shaft (13) through the tee (11), and the other end of the rotating shaft (82) is connected to the rotating handle (83). The rotating handle (83) is located on one side of the internal gear (81), and the interior of the rotating handle (83) is transversely provided with a slot. The limiting rod (84) is slidably connected to the interior of the slot of the rotating handle (83), the guide rod (85) is transversely connected to the interior of the slot of the rotating handle (83), the compression spring (86) is arranged inside the limiting rod (84), and the compression spring (86) is sleeved on the guide rod (85). The sampling assembly (7) includes a ball valve (71), A sampling bottle (72), a discharge cap (73), a sealing cap (74) and a sealing plate (75), the ball valve (71) is arranged on one side of the quick interface (61), and one end of the ball valve (71) is plugged into the interior of the quick interface (61), the water inlet of the sampling bottle (72) is threadedly connected to the other end of the ball valve (71), the discharge cap (73) is located at the other end of the sampling bottle (72) and the discharge cap (73) is connected to the sampling bottle (72), the sealing cap (74) is located on one side of the discharge cap (73) and is rotatably connected to the discharge cap (73), and the interior of the sealing cap (74) is laterally connected to the sealing plate (75).

2. A neurological fluid sampling device according to claim 1, characterized in that: The three-way assembly (1) comprises a three-way assembly (11), a fixed shaft (12), a rotating shaft (13), a torsion spring (14), a first baffle (15), a second baffle (16) and a limit assembly (8), wherein the fixed shaft (12) is located inside the three-way assembly (11) and one end of the fixed shaft (12) is connected to the three-way assembly (11), the rotating shaft (13) is arranged inside the three-way assembly (11) and the rotating shaft (13) is rotatably connected to the fixed shaft (12), and the torsion spring (14) is arranged on the three-way assembly (11). The interior of the rotating shaft (13) is sleeved on the fixed shaft (12), and the two ends of the torsion spring (14) are respectively connected to the fixed shaft (12) and the rotating shaft (13). The first baffle (15) and the second baffle (16) are respectively located on both sides of the rotating shaft (13), and one end of the first baffle (15) and the second baffle (16) are both connected to the rotating shaft (13). The limit assembly (8) is located on one side of the tee (11), and the limit assembly (8) is connected to the rotating shaft (13).

3. A neurological fluid sampling device according to claim 2, characterized in that: Sealing plugs (9) are provided on both end interfaces and the middle interface of the tee (11).

4. The neurological fluid sampling device according to claim 1, characterized in that: One end of the third pipeline (6) is connected to a quick interface (61), and the sampling assembly (7) is connected to the third pipeline (6) via the quick interface (61).

5. The neurological fluid sampling device according to claim 1, characterized in that: The sampling bottle (72) is provided with scale lines (76) on its body.

6. The neurological fluid sampling device according to claim 1, characterized in that: A sealing plug (9) is also provided at the liquid inlet of the ball valve (71).

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