CN206548894U - A kind of Lumbar cistern tube drainage system - Google Patents

Abstract

A lumbar cistern tube drainage device solves the problems existing in the prior art that easily cause excessive drainage, lead to low intracranial pressure, and often cause backflow of drainage fluid. It includes a drainage device board, a catheter and a drainage collection bag, and is characterized in that: the two sides of the drainage device board are respectively provided with an adjustment cap slideway and a three-way slideway, and the middle part of the drainage device board is provided with a pressure scale gauge; the upper part of the adjustment cap body of the height adjustment cap The pipe interface is set, the slider is set at the rear, and the locking bolt is set on the slider; the locking bolt arranges the slider in the slideway of the adjustment cap; the lower part of the height adjustment cap is provided with a drainage observation bottle with an anti-reflux device; three links The drainage inlet of the tube is connected with the drainage catheter placed in the lumbar pool, the drainage outlet is connected with the height adjustment cap, and the anti-reflux device at the lower part of the drainage observation bottle is connected with the drainage collection bag. It has a reasonable design and a compact structure, which is convenient for observing changes in patients' conditions, can accurately control the outflow of cerebrospinal fluid, and effectively prevents the occurrence of excessive drainage.

Description

Lumbar cistern drainage device

technical field

The utility model belongs to the technical field of medical devices, and in particular relates to a lumbar pool tube drainage device which is convenient for observing changes in patients' conditions, can accurately control the outflow of cerebrospinal fluid, and effectively prevents excessive drainage.

Background technique

Lumbar cistern drainage is a treatment method that places a drainage tube in the lumbar cistern through lumbar puncture to drain the cerebrospinal fluid. It is widely used in surgery and has a positive effect. Lumbar cistern drainage has the advantages of small trauma, simple method, high success rate, and avoiding repeated puncture; it can continuously drain bloody cerebrospinal fluid, reduce the incidence of cerebral vasospasm and hydrocephalus; and through the drainage of bloody cerebrospinal fluid, Accelerate the generation of cerebrospinal fluid, reduce the stimulation of bloody cerebrospinal fluid, promote the circulation of cerebrospinal fluid, relieve cerebral vasospasm, and improve the state of cerebral ischemia; samples can be taken at any time for laboratory examination of cerebrospinal fluid, and the properties of cerebrospinal fluid can be dynamically observed to understand the intracranial situation.

At present, the traditional method of adjusting the height of the lumbar drainage tube is still used to adjust the drainage speed and drainage volume, but it is easy to cause excessive drainage, which will lead to hypotension symptoms and hypotension headaches. At the same time, low intracranial pressure can increase the secretion of cerebrospinal fluid, further induce hydrocephalus, and even worse, intracranial hematoma and brain herniation may occur. Moreover, due to the joint effect of vacuum and atmospheric pressure in the disposable drainage bag of the prior art, the phenomenon of drainage fluid backflow often occurs, which increases the difficulty of controlling drainage speed and drainage volume, and affects disease analysis.

Therefore, it is necessary to improve the existing lumbar cistern tube drainage method to solve clinical practical problems, change the bad habit of relying on experience and feeling, and ensure the scientificity and effectiveness of clinical practice.

Utility model content

The utility model aims at the above problems and provides a lumbar pool drainage device which is convenient for observing changes in patients' conditions, can accurately control the outflow of cerebrospinal fluid, and effectively prevents excessive drainage.

The technical solution adopted by the utility model is: the lumbar pool tube drainage device includes a drainage device board, a catheter and a drainage collection bag, and is characterized in that: one side of the drainage device board is provided with a vertically arranged adjustment cap slideway , the other side of the drainage device plate is provided with a three-way slideway, and the drainage collection bag is arranged on the lower part of the drainage device plate; the three-way slideway is arranged in parallel with the adjustment cap slideway, and A vertically arranged pressure scale is arranged between them; a height adjustment cap is arranged in the adjustment cap slideway, the height adjustment cap includes an adjustment cap main body, the upper part of the adjustment cap main body is provided with a pipe interface, and the rear part of the adjustment cap main body is provided with a slider, The slider is provided with a locking bolt; the locking bolt passes through the long bolt hole provided on one side of the slideway of the adjustment cap, and the slider is arranged in the slideway of the adjustment cap; the side of the height adjustment cap is provided with a scale indicator needle, The lower part of the height adjustment cap is provided with a drainage observation bottle, and the bottom of the drainage observation bottle is provided with an anti-reflux device; It is connected with the conduit; the upper part of the anti-reflux chamber is provided with a partition, the middle of the partition is provided with a circular through hole, and the lower part of the inside of the anti-reflux chamber is provided with a sieve plate; the anti-reflux chamber partition and the sieve plate are provided with Plunger, the height of the plunger is less than the distance between the partition and the sieve plate, the diameter of the upper end of the plunger is larger than the diameter of the circular through hole of the partition; the three-way slideway is provided with a three-way pipe that can move up and down, The three-way tube includes a sampling port, a drainage inlet and a drainage outlet; the drainage inlet of the three-way tube is connected to the outlet of the drainage catheter placed in the lumbar pool, and the drainage outlet is connected to the pipe interface on the upper part of the height adjustment cap through the catheter, and the drainage observation bottle passes through The conduit arranged at the lower part of the backflow preventer is connected with the drainage collection bag.

The plunger arranged between the partition and the sieve plate of the backflow preventer is in the shape of a truncated cone, the diameter of the upper bottom at one end of the partition is large, and the diameter of the lower bottom at one end of the sieve plate is small. So that when the drainage liquid returns, the plunger can close the circular through hole in the middle of the partition in time.

A liquid level sensor is arranged in the drainage collection bag. When the liquid in the collection bag is full, the medical staff is prompted to replace it in time.

The drainage device board is connected with a rigid mobile support, and several casters with brakes are arranged at the lower end of the mobile support. In order to facilitate the movement and fixation of the entire drainage device, it is convenient to use.

The material of the height adjustment cap arranged in the adjustment cap slideway is medical rubber.

The plunger arranged between the partition plate and the sieve plate of the backflow preventer is a medical rubber stopper.

Compared with the lumbar pool drainage device in the prior art, the utility model has the following advantages: 1. High flexibility, the drainage tube is long enough, and can be adjusted at any time according to the specific situation, effectively avoiding the patient's turning over, infection and disease caused by activities; Occurrence of detachment. 2. Compared with the traditional method of directly mixing old and new drainage fluid, the color and properties of the drainage fluid in the drainage bottle can be observed dynamically and intuitively, which is conducive to grasping the real-time changes in the patient's condition. 3. The airtightness is better. The drainage observation bottle can not only isolate the old drainage fluid; at the same time, by adjusting the pressure in the bottle, it can also effectively prevent the drainage fluid from flowing backward or air into the brain, preventing intracranial infection and intracranial pneumatosis . 4. According to the dynamics of liquid dripping into the drainage bottle, it can reflect whether the drainage tube is blocked or the drainage is not smooth. 5. It is easy to observe, can accurately control the outflow of cerebrospinal fluid, and prevent the occurrence of excessive drainage. 6. By controlling the pressure in the drainage observation bottle, the number of drainage drops can be precisely adjusted, so as to effectively control the drainage speed and avoid the physical discomfort of the patient caused by the loss of a large amount of cerebrospinal fluid in a short period of time.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the height adjustment cap in Fig. 1 .

FIG. 3 is a top view of FIG. 2 .

Fig. 4 is a rotation view along the direction A of Fig. 3 .

FIG. 5 is a schematic structural view of the backflow preventer in FIG. 1 .

Fig. 6 is a schematic structural view of the sieve plate in Fig. 5 .

Fig. 7 is a structural schematic diagram of the tee pipe in Fig. 1 .

Description of serial numbers in the figure: 1 drainage device plate, 2 pressure scale gauge, 3 adjustment cap slide, 4 height adjustment cap, 5 drainage observation bottle, 6 anti-reflux device, 7 catheter, 8 drainage collection bag, 9 liquid level sensor, 10 Tee pipe, 11 tee slideway, 12 scale indicator needle, 13 pipe interface, 14 adjusting cap body, 15 locking bolt, 16 slider, 17 strip bolt hole, 18 connection chamber, 19 backflow prevention chamber, 20 Sieve plate, 21 plunger, 22 partition, 23 circular through hole, 24 sampling port, 25 drainage inlet, 26 drainage outlet.

detailed description

The specific structure of the utility model is explained in detail according to Fig. 1-7. The lumbar pool drainage device includes a drainage device board 1, a catheter 7 for diversion, and a drainage collection bag 8 for collecting the drainage fluid, wherein one side of the drainage device board 1 is provided with a vertically arranged The other side of the drainage device plate 1 is provided with a three-way slideway 11, and the drainage collection bag 8 is arranged on the bottom of the drainage device plate 1; the three-way slideway 11 is arranged in parallel with the adjustment cap slideway 3, A standard pressure scale gauge 2 for reading pressure values is vertically arranged between the three-way slideway 11 and the adjustment cap slideway 3 . In order to facilitate the movement and fixation of the entire drainage device, the drainage device plate 1 is connected with a rigid mobile bracket, and the lower end of the mobile bracket is provided with four rolling casters with brakes for easy use. In order to remind the medical personnel to change in time when the liquid in the collection bag is full, a liquid level sensor 9 is arranged in the drainage collection bag 8 . According to specific requirements for use, the height of the mobile support can be 150cm, and the size specification of the drainage device plate 1 can be 50 * 30cm; the length of the adjustment cap slideway 3 can be 40cm, and the length of the tee slideway 11 can be 10cm; drainage collection Bag 8 is made of medical plastic material, and the maximum volume can be 500ml.

In the adjustment cap slideway 3 arranged on one side of the drainage device plate 1, a height adjustment cap 4 for adjusting the height of the drainage observation bottle 5 is arranged. The height adjustment cap 4 is made of an adjustment cap main body 14, the top of the adjustment cap main body 14 is provided with a pipe interface 13, the rear portion of the adjustment cap main body 14 is provided with a slide block 16, and the slide block 16 is provided with a locking bolt 15. The locking bolt 15 passes through the strip bolt hole 17 provided on one side of the adjusting cap slideway 3, and the slide block 16 is arranged in the middle of the two tracks of the adjusting cap slideway 3; Inside, and the locking bolt 15 moves up and down with the slider 16 in the elongated bolt hole 17 to realize the adjustment of the drainage observation bottle 5 to the flow rate of the drainage liquid; and through the end of the locking bolt 15, the adjustment cap main body 14 It is fixed at any position of the adjustment cap slideway 3. One side of the adjustment cap main body 14 of the height adjustment cap 4 is horizontally provided with a scale indicator needle 12 for indicating the current pressure value, and the lower part of the adjustment cap main body 14 of the height adjustment cap 4 is provided with a drainage observation bottle 5, and the drainage observation bottle 5 A backflow preventer 6 for preventing backflow of drainage fluid is arranged below. According to requirements, the height adjustment cap 4 arranged in the adjustment cap slideway 3 can be made of medical rubber, and the diameter can be 2cm; correspondingly, the drainage observation bottle 5 is made of medical plastic, and the diameter is also 2cm. In the three-way slideway 11 arranged on the other side of the drainage device plate 1, a three-way tube 10 that can move up and down and be fixed is provided. The three-way tube 10 includes a sampling port 24 for sampling the cerebrospinal fluid (closed during normal drainage). state), the drainage inlet 25 for introducing cerebrospinal fluid from the lumbar cistern, and the drainage outlet 26 for delivering the drainage fluid to the drainage observation bottle 5 and the drainage collection bag 8 . The drainage inlet 25 of the three-way pipe 10 is connected with the outlet end of the drainage catheter 7 placed in the lumbar pool, and the drainage outlet 26 is connected with the pipe interface 13 on the top of the height adjustment cap 4 through the connection catheter 7; The connected drainage observation bottle 5 is connected with the drainage collection bag 8 arranged at the lower part of the drainage device plate 1 through the conduit 7 arranged at the lower part of the reflux prevention device 6 below the drainage observation bottle 5, so as to draw the cerebrospinal fluid drawn from the lumbar pool through The drainage observation bottle 5 is introduced into the drainage collection bag 8 .

The anti-reflux device 6 arranged under the drainage observation bottle 5 includes a connection cavity 18 connected to the bottom of the drainage observation bottle 5, and the bottom of the connection cavity 18 is provided with an anti-reflux cavity 19 for preventing drainage fluid from flowing back, and the backflow prevention cavity 19 The lower part is connected with the conduit 7 . The upper part of the inner side of the backflow prevention chamber 19 of the backflow preventer 6 is provided with a partition plate 22 with a circular through hole 23 in the middle, and the lower part of the inner side of the backflow prevention chamber 19 is provided with a sieve plate 20 with several small through holes thereon. In order to close the circular through hole 23 in the middle of the partition 22 in time when the drainage fluid backflow occurs during the drainage process, a plunger 21 in the shape of a truncated cone is arranged between the partition 22 and the sieve plate 20. The diameter of the upper bottom of plug 21 that is positioned at one end of dividing plate 22 is larger, and the diameter of the lower bottom that is positioned at one end of sieve plate 20 of truncated conical plunger 21 is less; ) diameter is greater than the diameter of the circular through hole 23 of the partition plate 22, so that the conical plunger 21 rises to block the circular through hole 23 of the partition plate 22 when the drainage fluid backflow occurs, preventing the drainage fluid from flowing backward. The height of the truncated conical plunger 21 is smaller than the distance between the dividing plate 22 and the sieve plate 20, so that the truncated conical plunger 21 can move up and down in the backflow prevention cavity 19, thereby opening or closing the circular passage of the dividing plate 22. Hole 23. According to the needs of use, the conical plunger 21 arranged between the partition plate 22 and the sieve plate 20 is a medical rubber stopper.

When this lumbar pool drainage device is in use, at first adjust the three-way tube 10 up and down in the three-way slideway 11 of the drainage device plate 1 according to the patient's body shape and bed position changes, and when the three-way tube 10 reaches the corresponding When corresponding to the patient’s horizontal position of “0”, fix the three-way tube 10 and mark the corresponding position on the three-way slideway 11; the drainage volume can also be indirectly controlled by adjusting the position of the three-way tube 10. At this time, the cerebrospinal fluid enters the drainage observation bottle 5 through the catheter 7 placed in the lumbar pool, through the tee tube 10 and the height adjustment cap 4, so as to observe the properties of the drainage cerebrospinal fluid and at the same time isolate the old drainage fluid. role. The cerebrospinal fluid in the drainage observation bottle 5 passes through the catheter 7 connected to the lower end of the backflow preventer 6, and finally flows into the drainage collection bag 8; in order to observe the change of the patient's condition.

During the drainage process, it is necessary to control the pressure in the drainage observation bottle 5 to adjust the drainage speed, unscrew the locking bolt 15 of the height adjustment cap 4, so that the height adjustment cap 4 drives the drainage observation bottle 5 connected to the lower part, together Rise along the adjustment cap slideway 3 (drainage speed becomes slower) or descend (drainage speed becomes faster); meanwhile, the scale indicator needle 12 connected with the height adjustment cap 4 points to the corresponding scale on the pressure scale gauge 2 . After the required drainage speed is reached, the locking bolt 15 is tightened to fix the position of the height adjustment cap 4 so as to accurately control the outflow of cerebrospinal fluid and effectively prevent the occurrence of excessive drainage.

When it is necessary to sample the cerebrospinal fluid for further biochemical examination, open the sampling port 24 of the closed tee tube 10, collect the required cerebrospinal fluid sample from the sampling port 24, and then close the sampling port 24 to restore normal cerebrospinal fluid drainage . When the liquid in the drainage collection bag 8 is full, the liquid level sensor 9 will send an alarm signal to prompt the medical staff to replace it in time to ensure the safety of the drainage.

Claims (6)

1. A lumbar drainage device, comprising a drainage device board (1), a catheter (7) and a drainage collection bag (8), characterized in that: one side of the drainage device board (1) is provided with a vertical The adjustment cap slideway (3) is arranged, and the other side of the drainage device plate (1) is provided with a three-way slideway (11), and the drainage collection bag (8) is arranged at the lower part of the drainage device plate (1); the three-way The slideway (11) is arranged in parallel with the slideway of the adjustment cap (3), and a vertically arranged pressure scale gauge (2) is arranged between the tee slideway (11) and the slideway of the adjustment cap (3); A height adjustment cap (4) is arranged inside the channel (3), and the height adjustment cap (4) includes an adjustment cap main body (14). A slider (16) is provided at the rear of the slider (16), and a lock bolt (15) is arranged on the slider (16); the lock bolt (15) passes through the long strip bolt hole provided on one side of the slideway (3) of the adjustment cap (17), arrange the slider (16) in the slideway of the adjustment cap (3); the side of the height adjustment cap (4) is provided with a scale indicator needle (12), and the lower part of the height adjustment cap (4) is provided with a drainage An anti-reflux device (6) is arranged under the observation bottle (5) and the drainage observation bottle (5); the anti-reflux device (6) includes a connection cavity (18) connected to the drainage observation bottle (5), the connection cavity (18) The lower part of the anti-reflux chamber (19) is provided with an anti-reflux chamber (19), and the lower part of the anti-reflux chamber (19) is connected to the conduit (7); the upper part of the inner side of the anti-reflux chamber (19) is provided with a partition (22), and the middle of the partition (22) is set There is a circular through hole (23), and a sieve plate (20) is arranged at the lower part of the inner side of the backflow prevention chamber (19); a column is arranged between the partition plate (22) and the sieve hole plate (20) of the backflow prevention chamber (19). Plug (21), the height of the plunger (21) is less than the distance between the partition (22) and the sieve plate (20), and the diameter of the upper end of the plunger (21) is larger than the circular through hole (23) of the partition (22) ) diameter; the three-way slideway (11) is provided with a three-way pipe (10) that can move up and down, and the three-way pipe (10) includes a sampling port (24), a drainage inlet (25) and a drainage outlet (26 ); the drainage inlet (25) of the three-way pipe (10) is connected to the outlet of the drainage catheter (7) placed in the lumbar pool, and the drainage outlet (26) passes through the catheter (7) and the tube on the upper part of the height adjustment cap (4). The interface (13) is connected, and the drainage observation bottle (5) is connected to the drainage collection bag (8) through the catheter (7) arranged at the lower part of the backflow preventer (6). 2. The lumbar pool tube drainage device according to claim 1, characterized in that: the plunger (21) provided between the partition (22) of the backflow preventer (6) and the sieve plate (20) It is in the shape of a truncated cone, the diameter of the upper bottom at one end of the dividing plate (22) is large, and the diameter of the lower bottom at one end of the sieve plate (20) is small. 3. The lumbar pool tube drainage device according to claim 1, characterized in that: a liquid level sensor (9) is arranged in the drainage collection bag (8). 4. The lumbar pool tube drainage device according to claim 1, characterized in that: the drainage device board (1) is connected with a rigid mobile bracket, and several casters with brakes are provided at the lower end of the mobile bracket. 5. The lumbar pool catheter drainage device according to claim 1, characterized in that: the material of the height adjustment cap (4) arranged in the adjustment cap slideway (3) is medical rubber. 6. The lumbar pool tube drainage device according to claim 1, characterized in that: the plunger (21) provided between the partition (22) of the backflow preventer (6) and the sieve plate (20) For medical rubber stoppers.