CN219963559U - A lumbar drainage device with convenient pressure measurement function suitable for clinical use - Google Patents

Abstract

The utility model provides a lumbar cistern drainage device with a convenient pressure measurement function suitable for clinical use, including a cerebrospinal fluid container, a pressure measurement tube and a drainage tube; the cerebrospinal fluid container is used to hold cerebrospinal fluid drained through puncture and includes at least one vertical side ; The pressure measuring tube is used to measure intracranial pressure through the liquid column method, and includes a straight tube body with a scale on the surface, and an elbow is provided at the top of the straight tube body; the straight tube body is parallel to and close to the vertical side of the cerebrospinal fluid container, and the elbow It is used to discharge cerebrospinal fluid into the cerebrospinal fluid container; one end of the drainage tube is sealed and connected to the bottom end of the linear tube body of the pressure measuring tube, and is used to drain cerebrospinal fluid into the pressure measuring tube. The drainage device of the utility model can meet the demand for real-time monitoring of intracranial pressure after puncture and drainage, and at the same time, the structure is simple and practical, and is suitable for clinical use.

Description

A lumbar drainage device with convenient pressure measurement function suitable for clinical use

Technical field

The utility model relates to a medical auxiliary treatment device, in particular to a lumbar cistern drainage device for clinical use.

Background technique

The main clinical method for measuring intracranial pressure is lumbar puncture, which is also one of the most accurate methods. After lumbar puncture, external drainage of cerebrospinal fluid after puncture can be continued according to clinical needs, which is clinically called "lumbar puncture drainage". Continuous cerebrospinal fluid drainage can reduce intracranial pressure. When intracranial hemorrhage or inflammation exists, it can also accelerate the clearance of blood and inflammatory substances in cerebrospinal fluid, promote cerebrospinal fluid regeneration and improve its circulation. It is the most commonly used method in clinical neurology to reduce intracranial pressure. Treatment to reduce intracranial pressure and improve cerebrospinal fluid conditions.

However, in the prior art, there are some inconveniences in the device and operation of lumbar puncture and drainage. For example, although the lumbar puncture package used routinely in clinical practice contains drainage tubes and pressure measuring tubes for lumbar drainage, due to the clinical The internal pressure measurement operation is generally completed before the lumbar drainage tube is inserted, and an additional lumbar puncture bag needs to be opened and only the pressure measuring tube is used. Therefore, in order to meet the pressure measurement requirements before drainage tube placement and facilitate the placement of the pressure measuring tube Taken separately, the drainage tube and pressure measuring tube in a conventional lumbar puncture bag are set independently of each other and are not easy to combine. In this case, the pressure measuring tube in the puncture bag cannot be used to measure intracranial pressure after the lumbar cistern is drained. However, it has been found through clinical practice that real-time monitoring of intracranial pressure after lumbar drainage is of great significance for departments such as neurosurgery, neurosurgery, and intensive care to obtain timely information and adjust treatment strategies. Therefore, in order to facilitate clinicians to understand the intracranial pressure at all times after the lumbar cistern drainage is completed, understand the patient's condition in a timely manner, adjust the height of the drainage bag, and control the daily drainage volume, it is necessary to improve the existing lumbar cistern drainage device and add drainage bags. The pressure measuring structure is designed to solve this problem.

Utility model content

The primary purpose of this utility model is to provide a drainage device with a pressure measuring structure in response to the clinical demand for real-time monitoring of intracranial pressure after drainage of the lumbar cistern is completed.

The above objects of the present invention are achieved through the following technical solutions:

First, the utility model provides a lumbar drainage device with a convenient pressure measurement function suitable for clinical use, including a cerebrospinal fluid container, a pressure measurement tube and a drainage tube;

The cerebrospinal fluid container is used to hold cerebrospinal fluid drained through puncture, and includes at least one vertical side;

The pressure measuring tube is used to measure intracranial pressure through the liquid column method, and includes a linear tube body with a scale on the surface, and an elbow is provided at the top of the linear tube body; the vertical side surface of the linear tube body and the cerebrospinal fluid container Parallel and close to each other, the elbow is used to discharge cerebrospinal fluid into the cerebrospinal fluid container;

One end of the drainage tube is sealingly connected to the bottom end of the linear body of the pressure measuring tube, and is used to drain cerebrospinal fluid into the pressure measuring tube.

In the lumbar cistern drainage device of the present invention, the other end of the drainage tube can be further connected to various drainage pipelines commonly used in clinical practice, such as indwelling tubes reserved in the body after lumbar cone puncture.

When using the drainage device of the utility model, first complete the lumbar puncture according to the conventional method, and set up an indwelling hose at the puncture position, and then connect the indwelling hose to the drainage tube in the lumbar drainage device of the utility model. After the connection Keep the puncture point and the 0 scale point of the linear body of the pressure measuring tube at the same height. Under the action of intracranial pressure, the cerebrospinal fluid reaches the pressure measuring tube through the indwelling section hose and drainage tube connected in sequence. When the intracranial pressure is high, cerebrospinal fluid will pass through the straight body of the pressure measuring tube, overflow from the elbow at the top, and then be discharged into the cerebrospinal fluid container. As the intracranial pressure decreases, the cerebrospinal fluid will gradually remain in the linear tube body of the pressure measuring tube. After the cerebrospinal fluid column in the linear tube body stabilizes, the real-time intracranial pressure can be read through the scale on the linear tube body. During the entire process, the pressure measuring tube is based on its parallel and close relationship with the vertical side of the cerebrospinal fluid container, making the vertical state of the straight tube body very easy to achieve and maintain during actual clinical operations, thereby ensuring that the cranial Accuracy of internal pressure detection. In addition, the pressure measuring tube has the dual functions of drainage and measurement, which is not only simple but also highly practical.

In the drainage device of the present invention, the cerebrospinal fluid container is made of rigid transparent material, and its specific shape and specifications are not particularly limited. It can be a variety of shapes suitable for clinical applications, such as a trapezoid with at least one vertical side. Cylinder, cube, cuboid, semi-cylinder, etc.

In the preferred drainage device of the present invention, in order to prevent the drained cerebrospinal fluid from being contaminated, the top of the cerebrospinal fluid container is provided with a sealing cover.

In a more preferred drainage device of the present invention, in order to ensure a balance between the internal and external air pressure of the cerebrospinal fluid container when the cerebrospinal fluid container is sealed so as to facilitate smooth drainage, the sealing cover is further provided with a pressure relief valve.

In the preferred drainage device of the present invention, in order to facilitate the discharge of the cerebrospinal fluid collected in the cerebrospinal fluid container, a drain valve is provided at the bottom of the cerebrospinal fluid container.

In the preferred drainage device of the present invention, in order to facilitate measurement of the amount of drained cerebrospinal fluid, the outer surface of the cerebrospinal fluid container is also provided with a scale.

In the preferred drainage device of the present invention, in order to facilitate the operation and carrying of the cerebrospinal fluid container, the top of the cerebrospinal fluid container is also provided with a handle.

In the drainage device of the present invention, the pressure measuring tube and the vertical side of the cerebrospinal fluid container can be in a fixed connection relationship or a detachable connection relationship. Regardless of the connection relationship, it is only necessary to ensure that the linear body part of the pressure measuring tube is vertical and the elbow opening of the pressure measuring tube is inside the cerebrospinal fluid container.

In a preferred embodiment of the present invention, the linear tube body and the vertical side of the cerebrospinal fluid container are fixedly connected to achieve parallelism; wherein, the bottom of the cerebrospinal fluid container is provided with a through hole, and the pressure measuring tube The linear tube body and the elbow are located in the cerebrospinal fluid container. The linear tube body is closely fixed on the inside of the vertical side of the cerebrospinal fluid container through a fixing member in the vertical direction. The bottom end of the linear tube body The drainage tube is sealed and connected through the through hole at the bottom of the cerebrospinal fluid container.

In another preferred embodiment of the present invention, the linear tube body and the vertical side of the cerebrospinal fluid container are detachably connected to achieve parallelism; wherein, the upper part of the vertical side of the cerebrospinal fluid container is provided with a through hole, The linear body of the pressure measuring tube is located outside the cerebrospinal fluid container, and the elbow at the top is inserted into the upper part of the vertical side of the cerebrospinal fluid container through the through hole in the upper part of the vertical side, so that the linear body It is close to the outer surface of the vertical side in the vertical direction (or parallel to the outside of the vertical side), and the elbow opening is inside the cerebrospinal fluid container. In a more preferred embodiment, in order to keep the straight tube body stably close to the vertical side (or maintain a stable parallel relationship with the vertical side), the bottom of the vertical side of the cerebrospinal fluid container is further provided with a clamping member , used to fix the linear pipe body. The clamping member may be an elastic buckle or an elastic clip.

In the drainage device of the present invention, the pressure measuring tube is made of rigid transparent material, and the drainage tube is made of flexible material.

Compared with the existing technology, the drainage device of the present invention can meet the demand for real-time monitoring of intracranial pressure after puncture and drainage. At the same time, the structure is simple and practical, and is very suitable for clinical use.

Description of the drawings

Figure 1 is a schematic structural diagram of the drainage device of Embodiment 1.

Figure 2 is a schematic structural diagram of the drainage device of Embodiment 2.

Explanation of reference symbols:

1-cerebrospinal fluid container, 2-straight tube body, 3-elbow, 4-connection hole, 5-drainage tube, 7-drainage tube elastic card, 8-three-way joint, 9-pressure relief valve, 10-drain valve , 11-handle, 12-fixing piece, 13-elastic buckle, 14-sealing cover, 15-drainage tube sealing joint, 16-vertical side, 17-scale.

Detailed ways

The technical solutions of the present invention are described in detail below by enumerating examples, but the present invention is not limited to the examples.

Example 1

A lumbar drainage device with a convenient pressure measurement function suitable for clinical use, including a cerebrospinal fluid container, a pressure measurement tube and a drainage tube;

As shown in Figure 1, the cerebrospinal fluid container 1 is a trapezoidal cylinder made of rigid transparent material (such as resin, etc.) and is used to contain cerebrospinal fluid drained through puncture. The cerebrospinal fluid container 1 includes two vertical sides 16, a handle 11 is provided on the upper edge, a sealing cover 14 is provided on the top, and a drain valve 10 is provided on the bottom. The sealing cover 14 is further provided with a pressure relief valve 9 . The outer surface of the cerebrospinal fluid container 1 is also provided with a scale 17 . The pressure measuring tube is made of rigid transparent material (such as glass or resin) and is used to measure intracranial pressure through the liquid column method. It includes a linear tube body 2 with a scale 17 on the surface, and an elbow is provided at the top of the linear tube body 2. 3. The linear tube body 2 and the vertical side 16 of the cerebrospinal fluid container 1 are parallel and closely connected through fixed connection; wherein, the bottom of the cerebrospinal fluid container 1 is provided with a connection hole 4, and the linear tube of the pressure measuring tube is The body 2 and the elbow 3 are both located in the cerebrospinal fluid container 1. The linear tube body 2 is closely fixed on the inside of the vertical side 16 of the cerebrospinal fluid container 1 through the fixing member 12 in the vertical direction. The bottom end of the tube body 2 is sealingly connected to the drainage tube 5 through the connecting hole 4 . The drainage tube 5 is made of flexible material (such as silicone), and the other end can be sealed and connected to the indwelling section of the hose in the body. The elbow 3 is used to discharge cerebrospinal fluid into the cerebrospinal fluid container 1 . The drainage tube 5 can also be formed by two sections of silicone tubes connected together through a tee joint 8 to prevent clogging. The drainage tube 5 can also be provided with a drainage tube elastic clip 7 at a position close to the indwelling section of the hose in the body for adjusting the liquid flow.

The drainage device described in the present invention can be an assembly in which a cerebrospinal fluid container, a pressure measuring tube and a drainage tube are pre-connected together, or it can be a kit composed of a cerebrospinal fluid container, a pressure measuring tube and a drainage tube that are individually packaged. When using, if you use a set of cerebrospinal fluid containers, pressure measuring tubes and drainage tubes packaged separately, you can first perform lumbar puncture and set up the indwelling tube in the body according to conventional methods (including: performing conventional lumbar puncture with the matching puncture trocar, and then setting up the indwelling tube). After the cerebrospinal fluid is successfully confirmed, pull out the inner core of the trocar, and at the same time, send the indwelling segment of the hose into the body along the puncture needle tube for about 15-18cm). Then connect the tail end of the internal indwelling segment hose to the drainage tube 5, and use medical tape to fix the external part of the internal indwelling segment hose to the back skin along the spine toward the head end. Finally, connect the other end of the drainage tube 5, the linear tube body 2 and the cerebrospinal fluid container 1 in sequence. After completing the puncture and connection, keep the puncture point and the 0 scale point of the linear body 2 of the pressure measuring tube at the same height. Under the action of intracranial pressure, the cerebrospinal fluid reaches outward through the sequentially connected internal indwelling segment hoses and drainage tubes. When the intracranial pressure of the pressure measuring tube is high, the cerebrospinal fluid will pass through the straight body 2 of the pressure measuring tube, overflow from the elbow 3 at the top and then be discharged into the cerebrospinal fluid container 1. As the intracranial pressure decreases, the cerebrospinal fluid will gradually remain in the linear tube body 2 of the pressure measuring tube. After the cerebrospinal fluid column in the linear tube body 2 stabilizes, it can be read through the scale 17 on the linear tube body 2 Real-time intracranial pressure. During the whole process, based on the parallel and close relationship between the pressure measuring tube and the vertical side 16 of the cerebrospinal fluid container 1, it can ensure that its straight tube body 2 always remains vertical, thereby ensuring the accuracy of intracranial pressure detection. In addition, the pressure measuring tube has the dual functions of drainage and measurement, which is not only simple but also highly practical.

Example 2

A lumbar drainage device with a convenient pressure measurement function suitable for clinical use, including a cerebrospinal fluid container, a pressure measurement tube and a drainage tube;

As shown in Figure 2, the cerebrospinal fluid container 1 is a rectangular parallelepiped made of rigid transparent material (such as resin, etc.) and is used to contain cerebrospinal fluid drained through puncture. The cerebrospinal fluid container 1 includes four vertical sides 16, a handle 11 is provided on the upper edge, a sealing cover 14 is provided on the top, and a drain valve 10 is provided on the bottom. The sealing cover 14 is further provided with a pressure relief valve 9 . The outer surface of the cerebrospinal fluid container 1 is also provided with a scale 17 . The pressure measuring tube is made of rigid transparent material (such as glass or resin) and is used to measure intracranial pressure through the liquid column method. It includes a linear tube body 2 with a scale 17 on the surface, and an elbow is provided at the top of the linear tube body 2. 3. The linear tube body 2 and the vertical side 16 of the cerebrospinal fluid container 1 are detachably connected to achieve parallel and close contact; wherein, the upper part of the vertical side 16 of the cerebrospinal fluid container 1 is provided with a connection hole 4 near the edge. , the bottom of the cerebrospinal fluid container 1 is at the same vertical position as the connecting hole 4, and an elastic buckle 13 is provided. The straight tube body 2 is located outside the cerebrospinal fluid container 1, and the elbow 3 at the top is plugged into the connecting hole 4 on the upper part of the vertical side 16. The upper part of the vertical side 16 of the cerebrospinal fluid container 1 and the lower part of the linear tube body 2 are embedded with elastic buckles 13 and clamped, so that the linear tube body 2 is closely attached to the outer surface of the vertical side 16. It can also be adjusted by adjusting the position of the elastic buckle 13. The straight tube body 2 remains parallel to the vertical side 16 of the cerebrospinal fluid container 1 . The opening of the elbow 3 is located inside the cerebrospinal fluid container 1 and is used to discharge cerebrospinal fluid into the cerebrospinal fluid container 1 . The bottom end of the linear pipe body 2 is connected to one end of the drainage tube 5 through the drainage tube sealing joint 15 . The drainage tube 5 is made of flexible material (such as silicone), and the other end can be sealed and connected to the indwelling segment of the hose in the body. The drainage tube 5 can also be formed by two sections of silicone tubes connected together through a tee joint 8 to prevent clogging. The drainage tube 5 can also be provided with a drainage tube elastic clip 7 at a position close to the indwelling section of the hose in the body for adjusting the liquid flow.

The drainage device described in the present invention can be an assembly in which a cerebrospinal fluid container, a pressure measuring tube and a drainage tube are pre-connected together, or it can be a kit composed of a cerebrospinal fluid container, a pressure measuring tube and a drainage tube that are individually packaged. During use, if an assembly that is pre-connected together is used, first use a conventional puncture needle to cooperate with the indwelling segment of the hose in the body to perform lumbar puncture, and then seal the external connector of the indwelling segment of the hose in the body to the drainage tube of the assembly. After connection, keep the puncture point and the 0 scale point of the linear body 2 of the pressure measuring tube at the same height. Under the action of intracranial pressure, the cerebrospinal fluid reaches the pressure measuring tube outward through the indwelling section hose and drainage tube connected in sequence. tube, when the intracranial pressure is high, the cerebrospinal fluid will pass through the straight body 2 of the pressure measuring tube, overflow from the elbow 3 at the top and then be discharged into the cerebrospinal fluid container 1. As the intracranial pressure decreases, the cerebrospinal fluid will gradually remain in the linear tube body 2 of the pressure measuring tube. After the cerebrospinal fluid column in the linear tube body 2 stabilizes, it can be read through the scale 17 on the linear tube body 2 Real-time intracranial pressure. During the entire process, based on the parallel or close relationship between the pressure measuring tube and the vertical side 16 of the cerebrospinal fluid container, it can ensure that the straight tube body 2 remains vertical at all times, thereby ensuring the accuracy of intracranial pressure detection. In addition, the pressure measuring tube has the dual functions of drainage and measurement, which is not only simple but also highly practical.

Claims (10)

1. Lumbar cistern drainage device with portable pressure measurement function suitable for clinic, which is characterized in that: comprises a cerebrospinal fluid container, a piezometer tube and a drainage tube;

the cerebrospinal fluid container is used for containing cerebrospinal fluid drained by puncture and comprises at least one vertical side surface;

the pressure measuring tube is used for measuring intracranial pressure through a liquid column method and comprises a linear tube body with scales on the surface, and an elbow is arranged at the top end of the linear tube body; the straight pipe body is parallel to and closely attached to the vertical side surface of the cerebrospinal fluid container, and the elbow is used for discharging cerebrospinal fluid into the cerebrospinal fluid container;

one end of the drainage tube is connected with the bottom end of the pressure measuring tube straight tube body in a sealing way and is used for draining cerebrospinal fluid into the pressure measuring tube.

2. The drainage device of claim 1, wherein: the cerebrospinal fluid container is made of rigid transparent materials.

3. The drainage device of claim 1, wherein: the top of the cerebrospinal fluid container is provided with a sealing cover.

4. The drainage device of claim 3 wherein: the sealing cover is provided with a pressure release valve.

5. The drainage device of claim 1, wherein: the bottom of the cerebrospinal fluid container is also provided with a drain valve.

6. The drainage device of any of claims 1-4, wherein: the outer surface of the cerebrospinal fluid container is also provided with scales.

7. The drainage device of any of claims 1-4, wherein: the top of the cerebrospinal fluid container is also provided with a handle.

8. The drainage device of claim 1, wherein: the straight pipe body is parallel to the vertical side surface of the cerebrospinal fluid container through fixed connection; the bottom of the cerebrospinal fluid container is provided with a through hole, the linear tube body and the elbow of the pressure measuring tube are both positioned in the cerebrospinal fluid container, the linear tube body is tightly fixed on the inner side of the vertical side surface of the cerebrospinal fluid container along the vertical direction through a fixing piece, and the bottom end of the linear tube body is in sealing connection with the drainage tube through the through hole at the bottom of the cerebrospinal fluid container.

9. The drainage device of claim 1, wherein: the straight pipe body is connected with the vertical side face of the cerebrospinal fluid container in a detachable mode to achieve parallelism; the upper part of the vertical side surface of the cerebrospinal fluid container is provided with a through hole, the linear tube body of the pressure measuring tube is positioned outside the cerebrospinal fluid container, the elbow at the top of the pressure measuring tube is inserted into the upper part of the vertical side surface of the cerebrospinal fluid container through the through hole at the upper part of the vertical side surface, so that the linear tube body is clung to the outer surface of the vertical side surface along the vertical direction, and the opening of the elbow is positioned inside the cerebrospinal fluid container.

10. The drainage device of claim 9, wherein: the bottom of the vertical side surface of the cerebrospinal fluid container is provided with a clamping piece for fixing the linear tube body.