Anti-reflux external ventricular drainage device

Abstract

The utility model discloses an anti-backflow external ventricular drainage device which comprises a drainage bottle, a drainage tube and a drainage bag. The drainage tube is communicated with the drainage bottle through a connecting tube A and a U-shaped elbow with an anti-reflux function, the connecting tube A is connected to one end of the drainage tube, the connecting tube A is connected with the U-shaped elbow, the U-shaped elbow is inserted into the drainage bottle, and the elbow part of the U-shaped elbow is located at the upper half part of the internal space of the drainage bottle; the drainage bag is connected with a connecting tube C led out of the drainage bottle through a connecting tube D; and hanging rings are arranged on the drainage bottle and the drainage bag. The drainage bottle, the drainage bag and the drainage tube are integrated into a set of device, disposable, airtight and ethylene oxide sterilization can be achieved, and sterility and safety of ventricular in-vitro drainage are improved. The drainage bottle can be hung for use, so that the toppling pollution condition is avoided; correspondingly, the drainage tube and the drainage bottle are connected through the U-shaped bent tube, the advantage of backflow prevention is achieved, and the risk of backflow infection can be avoided.

Description

Technical Field

[0001] The utility model relates to a drainage device, in particular to an ultra anti-reflux external ventricular drainage device. Background Art

[0002] External ventricular drainage is a treatment method adopted by neurosurgery to quickly rescue patients with increased intracranial pressure. The external ventricular drainage system is applicable to minimally invasive hematoma removal for cerebral hemorrhage; external ventricular drainage before, during or after craniocerebral surgery; external ventricular drainage for obstructive hydrocephalus and idiopathic hydrocephalus; drainage of liquid substances such as hematomas, abscesses and cysts in various parts of the intracranial cavity (subdural, epidural, intracerebral, etc.). In the past, the drainage tubes and drainage bottles were made by nurses themselves and reserved after high-pressure disinfection. Their disinfection validity period was short, and there were certain safety risks; moreover, during use, the drainage bottles were not easy to fix, were prone to tipping and contamination, resulting in inconvenient use. Content of the Utility Model

[0003] In order to solve the deficiencies of the above technologies, the utility model provides an anti-reflux external ventricular drainage device.

[0004] In order to solve the above technical problems, the technical scheme adopted by the utility model is: an anti-reflux external ventricular drainage device, which includes a drainage bottle, and also includes a drainage tube and a drainage bag respectively connected to the drainage bottle;

[0005] The drainage tube is connected to the drainage bottle through a connecting tube A and a U-shaped bend tube with an anti-reflux function. The connecting tube A is connected to one end of the drainage tube. The U-shaped bend tube is connected by the connecting tube A and inserted into the interior of the drainage bottle, and the bent head of the U-shaped bend tube is located in the upper half of the internal space of the drainage bottle;

[0006] The drainage bag is connected to a connecting tube C led out from the drainage bottle through a connecting tube D;

[0007] And a first hanging ring is arranged at the outer top end of the drainage bottle, and a second hanging ring is arranged at the outer top end of the drainage bag.

[0008] Preferably, the connecting tube A and the drainage tube are connected through a three-way valve and a four-wing male screw;

[0009] And one path led out from the three-way valve serves as a sampling port.

[0010] Preferably, a flow regulator is arranged on the connecting tube A.

[0011] Preferably, a first air filter is further arranged at the outer top end of the drainage bottle.

[0012] Preferably, a connecting tube B is connected to the bottom of the drainage bottle, and the connecting tube B is communicated with the connecting tube C through a drip funnel;

[0013] And a first clamping clip is provided on the connecting pipe B.

[0014] Preferably, the connecting pipe C and the connecting pipe D are connected through an internal and external spiral two-way joint.

[0015] Preferably, the drainage bag is connected with a two-way valve.

[0016] Preferably, a second air filter is further provided on the drainage bag, and a second clamping clip is provided on the pipeline connecting the second air filter and the drainage bag.

[0017] The present invention discloses an anti-reflux external ventricular drain, which integrates a drainage bottle, a drainage bag and a drainage tube into a set of devices, can achieve disposable, airtight and ethylene oxide sterilization, and increases the sterility and safety of external ventricular drainage. At the same time, the drainage bottle can be hung for use, solving the problem that the traditional single-use drainage bottle is not easy to fix, and avoiding the occurrence of dumping and pollution; correspondingly, the drainage tube and the drainage bottle are connected by a U-shaped bend structure, which has the advantage of preventing backflow and can avoid the risk of reflux infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] In the figure: 1, first hanging ring; 2, first air filter; 3, drainage bottle; 4, U-shaped bend; 5, flow regulator; 6, three-way valve; 7, three-way valve; 8, four-wing male screw; 9, sampling port; 10, second protein powder; 11, drainage bag; 12, first clamping clip; 13, drip head; 14, first filter; 15, second clamping clip; 16, two-way valve; 17, internal and external spiral two-way joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0021] The present invention discloses an anti-reflux external ventricular drain, and its structural layout is designed as Figure 1 shown, and the main components include: a drainage bottle 3, a drainage tube 6 and a drainage bag 11;

[0022] First of all, the drainage bottle 3 serves as a cerebrospinal fluid pressure regulator and is respectively connected to the drainage tube 6 and the drainage bag 11; and, in order to maintain the normal use of the drainage bottle 3, it needs to communicate with the external air. Therefore, a hole for external air circulation is provided at the external top end of the drainage bottle 3, and a first air filter 2 is provided at this hole to avoid the pollution of the external air environment.

[0023] Preferably, to address the problem that existing drainage bottles are not easy to fix, a first hanging ring 1 is provided at the outer top of the drainage bottle 3 of the present invention, so that the drainage bottle 3 can be suspended on a shelf for use, thereby avoiding the occurrence of contamination caused by tipping.

[0024] Secondly, as a component connecting the drainage area inside the cranial apex, the drainage tube 6 maintains a connection performance with the drainage bottle 3. When the drainage bottle provides a negative pressure effect, the drainage tube 6 can suck out the liquid in the drainage area.

[0025] The drainage tube 6 is specifically connected to the drainage bottle 3 through a connecting tube A and a U-shaped elbow tube 4 with an anti-backflow function; specifically: one end of the connecting tube A of the drainage tube 6 is connected to the drainage tube 6, and then the connecting tube A is connected to the U-shaped elbow tube 4. The U-shaped elbow tube 4 is inserted into the interior of the drainage bottle 3, and the bent head of the U-shaped elbow tube 4 is located in the upper half of the internal space of the drainage bottle 3. Thus, the liquid sucked out by the drainage tube 6 enters the drainage bottle 3 after passing through the connecting tube A and the U-shaped elbow tube 4.

[0026] Preferably, the connecting tube A and the drainage tube are connected through a three-way valve 7 and a four-wing male screw 8. One interface of the three-way valve 7 is connected to the drainage tube, and the other interface is connected to the four-wing male screw 8. At the same time, another interface of the three-way valve 7 is led out as a sampling port 9 for use; the four-wing male screw 8 is connected to one end of the connecting tube A and is at the front end of the liquid flow direction of the three-way valve 7. When operations such as sampling or adding medicine are performed using the sampling port 9, the four-wing male screw 8 can be temporarily screwed closed.

[0027] Furthermore, a flow regulator 5 is also provided on the connecting tube A. The flow regulator 5 can adopt the form of a commonly used flow regulator during infusion, and the flow during drainage is adjusted by squeezing the connecting tube A.

[0028] Furthermore, the U-shaped elbow tube 4 has an elbow structural feature and extends into the upper half of the internal space of the drainage bottle 3. When the drainage bottle 3 is suspended for use, this structural setting can ensure that the flow passage between the connecting tube A and the drainage bottle 3 is always from the end of the connecting tube A flowing into the drainage bottle, achieving the purpose of maintaining unidirectional flow and effectively preventing air backflow.

[0029] Moreover, the drainage bag 11, as a container for collecting the drained liquid, is also connected to the drainage bottle 3 through a pipeline structure.

[0030] Specifically: a connecting tube B is connected to the bottom of the drainage bottle 3, the connecting tube B is connected to the connecting tube C, and the drainage bag 11 is connected to the connecting tube C led out from the drainage bottle 3 through a connecting tube D. Thus, the liquid filled in the drainage bottle 3 flows into the drainage bag 11 along the connecting tube B, the connecting tube C, and the connecting tube B.

[0031] Preferably, for the convenience of removing the drainage bag 11, the connecting pipe C and the connecting pipe D are connected through an internal and external spiral two-way joint 17. At the same time, the drainage bag 11 is connected with a two-way valve 16, which can facilitate the extraction of the liquid in the drainage bag 11 and meet the operation requirements such as specimen submission. Further, a second air filter 14 is also provided on the drainage bag 11. While realizing air filtration, the second air filter 14 can facilitate the pressure adjustment during the use of the drainage bag 11 due to providing a gas passage. And, a second snap clamp 15 is provided on the pipeline connecting the second air filter 14 and the drainage bag 11, and the second snap clamp 15 can facilitate the control of the opening and closing of the pipeline.

[0032] Preferably, a drip funnel 13 is connected between the connecting pipe B and the connecting pipe C. The drip funnel 13 serves as an inspection structure to facilitate the observation of the liquid flow condition. And, a first snap clamp 12 is provided on the connecting pipe B, and the first snap clamp 12 facilitates the control of the opening and closing state of the connecting pipe B.

[0033] In addition, a second hanging ring 10 is provided at the outer top end of the drainage bag 11 to facilitate the hanging use of the drainage bag 11 on a rack.

[0034] It can be seen that for the anti-reflux external ventricular drainer disclosed by the present utility model, the drainage bottle, the drainage bag and the drainage pipe are integrated into a set of device, and it can achieve disposable, airtight and ethylene oxide sterilization. The product is used after being unpacked by a nurse. Compared with the traditional method that nurses need to make high-pressure disinfection by themselves, this product has the advantages of high sterility and safety; and, both the drainage bottle and the drainage bag can be hung for use, and only the hanging height difference between the two needs to be maintained, and there is no problem of being difficult to fix, so the occurrence of pouring pollution is also avoided, further improving the safety. Moreover, by adjusting the hanging height of the drainage bottle and cooperating with the flow regulator, the drainage speed of this drainer can be controlled, meeting the use requirements of a long indwelling time, without frequently replacing the drainage pipe, and further avoiding the risk of infection. Adopting a specific U-shaped bend pipe design can achieve the phenomenon of preventing backflow and avoid the risk hidden danger caused by backflow to the patient.

[0035] The above embodiments are not limitations to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the technical scope of the present utility model also belong to the protection scope of the present utility model.

Claims

1. An anti-backflow external ventricular drainage device, comprising a drainage bottle (3), characterized in that: It also includes a drainage tube (6) and a drainage bag (11) respectively connected to the drainage bottle (3); The drainage tube (6) is connected to the drainage bottle (3) via a connecting tube A and a U-shaped curved tube (4) having a backflow prevention function; the connecting tube A is connected to one end of the drainage tube (6) and is connected to the U-shaped curved tube (4) via the connecting tube A; the U-shaped curved tube (4) is inserted into the interior of the drainage bottle (3), and the elbow of the U-shaped curved tube (4) is located in the upper half of the interior space of the drainage bottle (3); The drainage bag (11) is connected to the connection tube C extending from the drainage bottle (3) via the connection tube D; The outer top of the drainage bottle (3) is provided with a first hanging ring (1), and the outer top of the drainage bag (11) is provided with a second hanging ring (10).

2. The anti-backflow external ventricular drain according to claim 1, characterized in that: The connecting tube A is connected to the drainage tube (6) via a three-way valve (7) and a four-wing male spiral (8); The three-way valve (7) leads out a channel as a sampling port (9).

3. The anti-backflow external ventricular drain according to claim 2, characterized in that: The connecting pipe A is provided with a flow regulator (5).

4. The anti-backflow external ventricular drain according to claim 1, characterized in that: The external top end of the drainage bottle (3) is also provided with a No. 1 air filter (2).

5. The anti-backflow external ventricular drain according to claim 1, characterized in that: A connecting tube B is connected to the bottom of the drainage bottle (3), and the connecting tube B is connected to the connecting tube C through a drip bucket (13); A No. 1 snap-on clamp (12) is provided on the connecting pipe B.

6. The anti-backflow external ventricular drain according to claim 5, characterized in that: The connecting pipe C and the connecting pipe D are connected via an inner and outer spiral coupling (17).

7. The anti-backflow external ventricular drain according to claim 1, characterized in that: The drainage bag (11) is connected to a two-way valve (16).

8. The anti-backflow external ventricular drain according to claim 7, characterized in that: The drainage bag (11) is also provided with a No. 2 air filter (14), and a No. 2 snap-on clamp (15) is provided on the pipeline connecting the No. 2 air filter (14) and the drainage bag (11).

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