Cerebrospinal fluid speed-limiting drainage device connected with lumbar puncture needle

Abstract

The cerebrospinal fluid speed-limiting drainage device connected with the lumbar puncture needle comprises a connector, a puncture needle head is installed at the rear end of the connector, a pressure measuring connector is installed at the upper end of the connector, a rotating device is installed in the connector, an adjusting seat is installed at the front end of the connector, and the adjusting seat is connected with the puncture needle. And a flow speed adjusting device is mounted at the right end of the adjusting seat. According to the utility model, the rotating column on the rotating device rotates, so that the rotating seat rotates in the connector, and the sealing part at the upper part of the rotating seat is aligned with the adjusting seat, so that cerebrospinal fluid is guided into the pressure measuring connector through the through hole for pressure measurement; when the cerebrospinal fluid is guided out, a push column on the flow rate adjusting device is pushed to push an adjusting baffle to slide left and right in a movable groove, so that the size of an outlet of the adjusting seat is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of lumbar puncture, in particular to a cerebrospinal fluid speed-limiting drainage device connected to a lumbar puncture needle. Background Art

[0002] Lumbar puncture is a commonly used clinical diagnosis and treatment operation, which can be used for diagnosing various inflammatory diseases, vascular diseases, spinal cord lesions, suspected intracranial space-occupying lesions, unclear nervous system diseases, pneumoencephalography and spinal canal angiography of the central nervous system. It is also used for draining fluid due to excessive cerebrospinal fluid pressure and injecting drugs to treat central nervous system diseases. Therefore, a drainage puncture needle is needed.

[0003] The existing patent (application number 202120791121.8) discloses a device for controlling the flow rate of cerebrospinal fluid externally connected to a neurosurgical lumbar puncture needle, including a puncture needle, a puncture needle interface, a flow rate control device, an eagle beak liquid outlet, a length-adjustable connecting rod, a test tube holder and a test tube. One end of the test tube is connected to one end of the eagle beak liquid outlet, the other end of the test tube is connected to the test tube holder, the test tube holder is fixedly connected to the lower part of the length-adjustable connecting rod, the upper part of the length-adjustable connecting rod is fixedly connected to the flow rate control device, one end of the flow rate control device is connected to the other end of the eagle beak liquid outlet, the eagle beak liquid outlet can connect the flow rate control device and the test tube, the other end of the flow rate control device is connected to one end of the puncture needle interface, and the other end of the puncture needle interface is connected to the puncture needle.

[0004] When the existing drainage puncture needle is pulled out by a doctor, most of the cerebrospinal fluid directly flows out of the puncture needle, and its flow rate is difficult to adjust. If the flow rate of cerebrospinal fluid is too large, it is easy to cause increased intracranial pressure, resulting in certain risks during the use of the device. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a cerebrospinal fluid speed-limiting drainage device connected to a lumbar puncture needle, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A cerebrospinal fluid speed-limiting drainage device connected to a lumbar puncture needle includes a connector head, a puncture needle head is installed at the rear end of the connector head, a pressure measuring joint is installed at the upper end of the connector head, a rotating device is installed inside the connector head, an adjusting seat is installed at the front end of the connector head, and a flow rate adjusting device is installed at the right end of the adjusting seat.

[0008] Preferably, the flow rate adjusting device includes an adjusting baffle. A push column is installed in the middle of the right end of the adjusting baffle. An activity groove is formed in the adjusting seat. A sealing sleeve is installed at the right end of the adjusting seat. The adjusting baffle is located in the activity groove. The push column is used to push the adjusting baffle to slide left and right in the activity groove, so as to adjust the size of the outlet of the adjusting seat and adjust the flow rate of cerebrospinal fluid.

[0009] Preferably, the rotating device includes a rotating seat. Through holes are formed at the front end, lower end and rear end of the rotating seat. A rotating column is installed in the middle of the right end of the rotating seat. An installation groove is formed in the connecting head. The rotating seat is installed in the connecting head through the installation groove. By rotating the rotating column, the rotating seat rotates in the connecting head, so that the sealing part on the upper part of the rotating seat is aligned with the adjusting seat, and cerebrospinal fluid is introduced into the pressure measuring joint through the through hole for pressure measurement. When liquid needs to be discharged, continue to rotate the rotating seat so that the sealing part on its upper part is aligned with the pressure measuring joint. At this time, cerebrospinal fluid is discharged through the adjusting seat.

[0010] Preferably, an installation opening is formed in the puncture needle head. A puncture needle core is installed in the installation opening. A pulling block is installed at the front end of the puncture needle core. The puncture needle head is punctured into a suitable position in the patient's waist. Then, the puncture needle core in the puncture needle head is pulled out through the pulling block. At this time, cerebrospinal fluid flows into the connecting head through the installation opening.

[0011] Preferably, the push column movably penetrates through the sealing sleeve.

[0012] Preferably, the puncture needle core is the same size as the installation opening.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When in use, first connect the pressure measuring tube to the pressure measuring joint. Then, puncture the puncture needle head into a suitable position in the patient's waist. Then, pull out the puncture needle core in the puncture needle head through the pulling block. At this time, cerebrospinal fluid flows into the connecting head through the installation opening. When pressure measurement is required, rotate the rotating column on the rotating device, so that the rotating seat rotates in the connecting head, and the sealing part on the upper part of the rotating seat is aligned with the adjusting seat, so that cerebrospinal fluid is introduced into the pressure measuring joint through the through hole for pressure measurement.

[0015] When liquid needs to be discharged, continue to rotate the rotating seat so that the sealing part on its upper part is aligned with the pressure measuring joint. At this time, cerebrospinal fluid is discharged through the adjusting seat. Moreover, when discharging, by pushing the push column on the flow rate adjusting device, the push column pushes the adjusting baffle to slide left and right in the activity groove, so as to adjust the size of the outlet of the adjusting seat and adjust the flow rate of cerebrospinal fluid.

[0016] The connector and the adjustment base are made of transparent polypropylene material, which has excellent chemical stability, good mechanical strength, high heat resistance and light weight. It is widely used in daily necessities such as polypropylene bags, water cups, bottles, etc., which facilitates people to adjust the adjustment base and the rotating base. Brief Description of the Drawings

[0017] Figure 1 Figure 1 is a schematic diagram of the overall structure of a cerebrospinal fluid speed-limiting drainage device connecting a lumbar puncture needle according to the present invention;

[0018] Figure 2 Figure 2 is a schematic diagram of the overall structure of a flow rate adjustment device of a cerebrospinal fluid speed-limiting drainage device connecting a lumbar puncture needle according to the present invention;

[0019] Figure 3 Figure 3 is a schematic diagram of the overall structure of a rotating device of a cerebrospinal fluid speed-limiting drainage device connecting a lumbar puncture needle according to the present invention;

[0020] Figure 4 Figure 4 is a schematic diagram of the overall structure of a puncture needle head of a cerebrospinal fluid speed-limiting drainage device connecting a lumbar puncture needle according to the present invention.

[0021] In the figure: 1, connector; 2, flow rate adjustment device; 3, rotating device; 4, puncture needle head; 5, pressure measuring connector; 6, adjustment base; 20, adjustment baffle; 21, push column; 22, sealing sleeve; 23, activity groove; 30, rotating base; 31, through port; 32, rotating column; 33, installation groove; 40, installation port; 41, puncture needle core; 42, pulling block. Detailed Description of the Preferred Embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] As Figures 1-4 shown, a cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle includes a connection head 1. A puncture needle head 4 is installed at the rear end of the connection head 1, a pressure measuring joint 5 is installed at the upper end of the connection head 1, a rotating device 3 is installed inside the connection head 1, an adjustment seat 6 is installed at the front end of the connection head 1, and a flow rate adjustment device 2 is installed at the right end of the adjustment seat 6.

[0026] The flow rate adjustment device 2 includes an adjustment baffle 20. A push column 21 is installed in the middle of the right end of the adjustment baffle 20. An activity groove 23 is opened in the adjustment seat 6, a sealing sleeve 22 is installed at the right end of the adjustment seat 6, and the adjustment baffle 20 is located inside the activity groove 23; the push column 21 movably penetrates through the sealing sleeve 22. By pushing the push column 21, the adjustment baffle 20 slides left and right inside the activity groove 23, so as to adjust the size of the outlet of the adjustment seat 6 and adjust the flow rate of the cerebrospinal fluid.

[0027] The rotating device 3 includes a rotating seat 30. Through openings 31 are opened at the front end, lower end and rear end of the rotating seat 30. A rotating column 32 is installed in the middle of the right end of the rotating seat 30. An installation groove 33 is opened inside the connection head 1, and the rotating seat 30 is installed inside the connection head 1 through the installation groove 33. By rotating the rotating column 32, the rotating seat 30 rotates inside the connection head 1, so that the sealing part on the upper part of the rotating seat 30 is aligned with the adjustment seat 6, so that the cerebrospinal fluid is introduced into the pressure measuring joint 5 through the through openings 31 for pressure measurement. When liquid discharge is required, continue to rotate the rotating seat 30 so that the sealing part on its upper part is aligned with the pressure measuring joint 5. At this time, the cerebrospinal fluid is discharged through the adjustment seat 6.

[0028] An installation opening 40 is opened inside the puncture needle head 4. A puncture needle core 41 is installed inside the installation opening 40, and a pull block 42 is installed at the front end of the puncture needle core 41; the puncture needle core 41 is the same size as the installation opening 40. The puncture needle head 4 is punctured into a suitable position in the patient's waist, and then the puncture needle core 41 inside the puncture needle head 4 is pulled out through the pull block 42. At this time, the cerebrospinal fluid flows into the connection head 1 through the installation opening 40.

[0029] It should be noted that the present utility model is a cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle. When in use, first connect the pressure measuring tube to the pressure measuring joint 5, then puncture the puncture needle head 4 into a suitable position in the patient's waist. Next, pull out the puncture needle core 41 in the puncture needle head 4 through the pulling block 42. At this time, the cerebrospinal fluid flows into the connector 1 through the installation port 40. When pressure measurement is required, rotate the rotating column 32 on the rotating device 3, so that the rotating seat 30 rotates in the connector 1, and the sealing part on the upper part of the rotating seat 30 is aligned with the adjusting seat 6, so that the cerebrospinal fluid is introduced into the pressure measuring joint 5 through the through port 31 for pressure measurement. When liquid discharge is required, continue to rotate the rotating seat 30 so that the sealing part on its upper part is aligned with the pressure measuring joint 5. At this time, the cerebrospinal fluid is discharged through the adjusting seat 6. Moreover, when discharging, by pushing the push column 21 on the flow rate adjusting device 2, the push column 21 is used to push the adjusting baffle 20 to slide left and right in the movable groove 23, so as to adjust the size of the outlet of the adjusting seat 6 and adjust the flow rate of the cerebrospinal fluid.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cerebrospinal fluid speed-limited drainage device connected to a lumbar puncture needle, comprising a connector (1), characterized in that: A puncture needle (4) is installed at the rear end of the connector (1), a pressure measuring connector (5) is installed at the upper end of the connector (1), a rotating device (3) is installed inside the connector (1), an adjusting seat (6) is installed at the front end of the connector (1), and a flow rate adjusting device (2) is installed at the right end of the adjusting seat (6).

2. The cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle according to claim 1, wherein: The flow rate adjusting device (2) includes an adjusting baffle (20), a push column (21) is installed in the middle of the right end of the adjusting baffle (20), a movable groove (23) is formed in the adjusting seat (6), a sealing sleeve (22) is installed at the right end of the adjusting seat (6), and the adjusting baffle (20) is located in the movable groove (23).

3. The cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle according to claim 1, characterized in that: The rotating device (3) includes a rotating seat (30), through openings (31) are formed at the front end, lower end and rear end of the rotating seat (30), a rotating column (32) is installed in the middle of the right end of the rotating seat (30), an installation groove (33) is formed in the connector (1), and the rotating seat (30) is installed in the connector (1) through the installation groove (33).

4. The cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle according to claim 1, characterized in that: An installation opening (40) is formed in the puncture needle (4), a puncture needle core (41) is installed in the installation opening (40), and a pulling block (42) is installed at the front end of the puncture needle core (41).

5. The cerebrospinal fluid speed-limiting drainage device for connecting a lumbar puncture needle according to claim 2, characterized in that: The push column (21) movably penetrates through the sealing sleeve (22).

6. The cerebrospinal fluid speed-limiting drainage device connecting a lumbar puncture needle according to claim 4, characterized in that: The puncture needle core (41) is of the same size as the installation opening (40).

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