CN203154404U - Thoracocentesis drainage apparatus - Google Patents

Abstract

The utility model discloses a thoracocentesis drainage apparatus. The thoracocentesis drainage apparatus comprises a drainage tube (1), holes (13), a drainage bag (3), a side hole (4) and a puncture needle sheath (2), wherein the holes (13) are formed at the front end of the drainage tube (1), the drainage bag (3) is connected at the rear end of the drainage tube (1), the side hole (4) is arranged on the drainage tube (1) and used for washing and medicine injecting, and the puncture needle sheath (2) is used for guiding insertion of the front end of the drainage tube (1) and can be torn off. The thoracocentesis drainage apparatus is simple in structure, convenient and fast to operate and capable of minimizing wounds on patients and obviously reducing pains of the patients.

Description

Thoracentesis

technical field

The utility model relates to the field of medical equipment, in particular to a chest cavity puncture drainage device.

Background technique

Respiratory medicine often has many operations, such as various puncture and drainage, biopsy and bronchoscopy diagnosis, etc., so the operation takes up a lot of clinical work time. But the most common operation is closed thoracic drainage, so we hope that the operation will be simple and quick, and at the same time minimize the trauma as much as possible. There are many types of thoracentesis tube drainage devices on the market. However, most of the current thoracentesis tube drainage devices have the following disadvantages: first, the operation process or procedure is too complicated, cumbersome, and time-consuming; In response to the above problems, we have developed a simple and quick thoracentesis drainage device.

Utility model content

The technical problem to be solved by the utility model is to provide a simple and fast thoracentesis drainage device for the defects of complicated operation procedures in the prior art.

The technical solution adopted by the utility model to solve the technical problem is: to construct a thoracentesis drainage device, including a drainage tube, an opening arranged at the front end of the drainage tube, a drainage bag connected to the rear end of the drainage tube, and a drainage bag arranged at the drainage tube The thoracentesis device also includes a tearable puncture needle sheath for inserting and guiding the front end of the drainage tube.

Further, the puncture needle sheath includes a puncture head, a neck and a tail. The puncture needle sheath is composed of two half puncture needle sheaths cut along the symmetrical axis of the neck. Open focus.

Further, the neck of the puncture needle sheath is cylindrical, and the diameter of the neck is 3-4mm.

Further, the drainage tube includes a first lumen and a second lumen arranged in the first lumen, the first lumen and the second lumen are isolated from each other, and on the outer wall of the drainage tube, A water bag is arranged at the rear of the opening, the front end of the second lumen is connected to the water bag, and the rear end of the second lumen is connected to a water filling joint.

Furthermore, the water bag is arranged at a distance of 2-3 cm from the back of the opening at the nearest end.

Further, a bayonet for controlling flow is provided on the first lumen and at the liquid inlet of the drainage bag.

Further, the connection between the drainage bag and the rear end of the drainage tube is seamless.

Further, the drainage tube is also provided with an anti-folding tube device to prevent the drainage tube from folding.

The beneficial effect of the utility model is that: adopting the structure of the puncture needle sheath that can be torn apart, after a small incision is made on the chest wall skin of the corresponding part of the patient (if necessary, the subcutaneous muscle can be properly separated with a vascular forceps, so that the puncture needle sheath can be smoothly inserted into the chest cavity ), insert the puncture needle sheath into the small hole, use the puncture needle sheath to send the drainage tube into the patient's body, and then continue to feed the drainage tube while withdrawing the puncture needle sheath. After the puncture needle sheath is completely withdrawn, tear off the puncture needle sheath This structure facilitates the smooth insertion of the drainage tube into the chest cavity, and avoids the disadvantages of difficulty in entering the body with a soft drainage tube and time-consuming operation.

In addition, a water bag is provided at the front end of the drainage tube. The water bag is used in conjunction with the puncture needle sheath. After the drainage tube is placed in the patient's body, the water bag is filled with water through the water-filled joint, so that the drainage tube is stuck in the parietal pleura of the chest cavity. On, thereby eliminating the pain of suturing the drainage tube while minimizing trauma.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the overall structural representation of the utility model embodiment;

Fig. 2 is a schematic diagram of the structure of the puncture needle sheath of the embodiment of the present invention after the sheath is torn off and the water bag is filled with water;

Figure a in Figure 3 is a schematic structural view of the puncture needle sheath of the embodiment of the present invention;

Figure b in Figure 3 is a schematic diagram of the mechanism after the puncture needle sheath of the embodiment of the present invention is torn apart.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is described in detail with reference to the accompanying drawings.

As shown in Figure 1, the thoracentesis device is mainly used for closed drainage of the thoracic cavity, such as to export the fluid in the thoracic cavity out of the body, and the thoracentesis device includes a drainage tube 1, a side port 4, a drainage bag 3 and a puncture needle Sheath 2 etc. The front end of the drainage tube 1 is provided with an opening 13, and the rear end of the drainage tube 1 is provided with a drainage bag 3. After the end of the opening 13 is inserted into the human body, the liquid is exported out of the body through the opening 13. The drainage bag 3 is mainly used to contain Put the effusion derived in the chest cavity, in the present embodiment, the drainage bag 3 and the drainage tube 1 are seamlessly connected. Understandably, in some other embodiments, the connection between the drainage bag 3 and the drainage tube 1 may also be other forms of closed connection.

Referring to FIG. 2 together, the drainage tube 1 includes a first lumen 11 and a second lumen 12 , the second lumen 12 is disposed in the first lumen 11 , between the first lumen 11 and the second lumen 12 Mutual isolation; On the outer wall surface of drainage tube 1, the rear portion of opening 13 is provided with water bag 121, and this water bag 121 can be annular and be covered with the outer wall of drainage tube 1 for a week, also can be on the outer wall of drainage tube 1 Some parts are arranged at intervals; the front end of the second lumen 12 is connected to the water bag 121, and the rear end of the second lumen 12 is connected to the water filling joint 122. 2-3 cm, it can be understood that in some other embodiments, it can also be set at other positions.

Referring to Fig. 2, after the drainage tube 1 with the water bag 121 enters the thoracic cavity, open the water filling connector 122, and slowly inject physiological saline through the second lumen 12 to expand the water bag 121. Before measuring.

The purpose of designing the water bag 121 is to fix the drainage tube 1 without sewing needles after the front end of the drainage tube 1 is inserted into the human body. By filling water, the front end of the drainage tube 1 can be stuck on the parietal pleura, so as to fix the drainage tube 1. effect. The cooperative use of the water bag 121 and the puncture needle sheath 2 eliminates the pain of the needle fixing the drainage tube and the skin while minimizing the trauma.

In this embodiment, the drainage tube 1 includes a first lumen 11 and a second lumen 12 , of course, in other embodiments, the drainage tube may also include more lumens, such as three lumens.

1 and 2, the first lumen 11 is provided with a side port 4, and the side port 4 is used for flushing the chest cavity or injecting medicine to the chest cavity when necessary. In this embodiment, the lumen for flushing or injecting medicine is the same as The lumen for leading out the pleural effusion is the same lumen, which simplifies the device. It is understandable that in some other embodiments, the lumens for flushing and drug injection can also be designed separately.

At the rear of the side port 4 and at the liquid inlet of the drainage bag 3, a bayonet 5 for controlling the flow is provided. The bayonet 5 can be used to regulate the flow rate of the pleural effusion. Treatments such as pleural washing or injection of medicines can be successfully realized through the side port 4 . In addition, the bayonet port 5 can also adjust the size of the flow between closing and opening. It is understandable that in some other embodiments, the bayonet 5 may also be arranged at other locations, as long as it can regulate the volume of the derived effusion flow or have a corresponding clinical effect.

As shown in Figure 3, the puncture needle sheath 2 adopts a tearable design, and the inner cavity of the puncture needle sheath 2 is circular, including a puncture head 21, a neck 22 and a tail 23, and the neck 22 is cylindrical, as shown in the figure 3, the puncture needle sheath 2 is composed of two halves of the puncture needle sheath cut along its axis of symmetry. A fastening structure can be set between the two half-puncture needle sheaths, for example, a groove and a convex point that are mutually fastened and positioned between the two half-puncture needle sheaths, an adhesive bond provided between the two half-puncture needle sheaths agent etc.

Further, the tail part 23 is provided with a force member, which is mainly used for applying force when the puncture needle sheath 2 is placed into the human body, when the puncture needle sheath 2 exits the human body, and when the puncture needle sheath 2 is torn apart. It is convenient to insert and remove the puncture needle sheath 2 and tear it apart.

The puncture needle sheath 2 is set on the front end of the drainage tube 1, and a small incision is made on the chest wall skin of the corresponding part of the patient, and the puncture needle sheath 2 is inserted into the incision (if necessary, the subcutaneous muscle can be properly separated with a vascular forceps, so that the puncture needle sheath can be drained smoothly). puncture needle sheath 2), and then use the puncture needle sheath 2 to make the drainage tube 1 enter the thoracic cavity along the puncture needle sheath 2, while slowly withdrawing the puncture needle sheath 2, while pushing the drainage tube 1 into the thoracic cavity, when the puncture needle sheath 2 completely exits the thoracic cavity Finally, the puncture needle sheath 2 can be torn off. The design of this structure facilitates the drainage tube 1 to enter the chest cavity more smoothly, avoiding the disadvantages of the soft drainage tube being difficult to enter the body and time-consuming to operate.

In this embodiment, the puncture needle sheath 2 is made of metal, of course, the puncture needle sheath 2 can also be made of other hard materials.

The tearable puncture needle sheath 2 is designed, and a small incision is made on the patient before use, and then the puncture needle sheath 2 with the drainage tube 1 inserted into the incision, at this time, the drainage tube 1 is guided by the puncture needle sheath 1 Insert the puncture needle sheath 2 into the chest cavity, and after the drainage tube 1 is pushed to the chest cavity, slowly withdraw the puncture needle sheath 2 from the drainage tube 1, and tear the puncture needle sheath 2 after the puncture needle sheath 2 exits the patient's body. The diameter of the clinical drainage tube 2 is generally about 2 mm, so the diameter of the puncture needle sheath 2 can be controlled at 3-4 mm, which is relatively small in diameter and can be punctured into the chest cavity more smoothly.

The drainage tube 1 is also provided with an anti-bending tube device to prevent the bending of the drainage tube 1. The anti-bending tube device can be a commercially available anti-bending tube device or other self-developed anti-bending tube device. In this embodiment , the anti-folding tube device includes a fixed piece and an arc-shaped sheath, the fixed piece is mainly used for fixing, a device for pasting can be set on the fixed piece, such as Velcro or adhesive tape, and the arc-shaped sheath is used to place drainage The smooth transition of the tube and the drainage tube through the arc-shaped tube sheath avoids the appearance of a right angle, thereby eliminating the smooth flow caused by the folded tube, which is conducive to improving the drainage effect.

In addition, the thoracic drainage device is not only suitable for most pleural effusions, but also can be used for closed exhaust of pneumothorax. When using this thoracentesis drainage device for closed exhaust of pneumothorax, it is only necessary to cut off the drainage bag 1 and then Receive water to seal the bottle.

The workflow of the thoracentesis device is:

(1) After routine disinfection, draping, and local anesthesia, cut a small incision of about 3 mm (the subcutaneous muscle can be separated with vascular forceps appropriately), and take the puncture needle sheath 2 that has been placed in the drainage tube 1 and directly puncture it vertically from this small incision. Into the thoracic cavity, the penetration depth can be measured with a local anesthesia needle (because it is already known how deep the puncture can enter the thoracic cavity during local anesthesia).

(2) After the puncture needle sheath 2 placed with the drainage tube 1 enters the chest cavity, the drainage tube 1 on the outside of the puncture needle sheath 2 can be pushed to continue to be sent into the thoracic cavity along the puncture needle sheath 2, and the puncture is withdrawn while sending the drainage tube 1 The needle sheath 2 is placed outside the body (the catheter can be advanced 10 cm to ensure that the water bag 121 is in the chest cavity), and then the puncture needle sheath 2 is directly torn off.

(3) After the catheter is fully inserted into the thoracic cavity, take about 2-5ml of normal saline (you can measure the amount of saline before the operation) to inject the water bag 121 through the flushing structure, and then gently pull out the drainage tube 1 to remove the water bag 121 Clamp on the inner wall layer of the pleural membrane to fix the drainage tube 1.

(4) Finally, use the anti-folding device to fix the external drainage tube 1 along the line, so as to prevent the external drainage tube 1 from being folded at a right angle.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, several improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (8)

1. A thoracentesis drainage device, comprising a drainage tube (1), an opening (13) arranged at the front end of the drainage tube (1), a drainage bag (3) connected to the rear end of the drainage tube (1), and a drainage bag (3) arranged at the front end of the drainage tube (1). The side port (4) on the drainage tube (1) for flushing and drug injection, characterized in that the thoracentesis device also includes a tearable puncture needle for the insertion and guidance of the front end of the drainage tube (1) sheath (2). 2. The thoracentesis drainage device according to claim 1, characterized in that, the puncture needle sheath (2) includes a puncture head (21), a neck (22) and a tail (23), and the puncture needle sheath (2) It consists of two half puncture needle sheaths cut along the symmetrical axis of the neck (22), and the tail (23) is also provided with a force part for insertion, extraction and tearing. 3. The thoracentesis drainage device according to claim 2, characterized in that, the neck (22) of the puncture needle sheath (2) is cylindrical, and the diameter of the neck (22) is 3-4mm . 4. The thoracentesis drainage device according to claim 2, characterized in that, the drainage tube (1) comprises a first lumen (11) and a second lumen (11) arranged in the first lumen (11) 12), the first lumen (11) and the second lumen (12) are isolated from each other, and a water bladder ( 121), the front end of the second lumen (12) is connected to the water bladder (121), and the rear end of the second lumen (12) is connected to a water filling joint (122). 5 . The thoracentesis drainage device according to claim 4 , characterized in that, the water bladder ( 121 ) is arranged at a distance of 2-3 cm from the rear part of the most proximal opening ( 13 ). 5 . 6. The thoracentesis drainage device according to claim 4, characterized in that, on the first lumen (11) and at the liquid inlet of the drainage bag (3), there is a bayonet (5) for flow control . 7. The thoracentesis drainage device according to claim 6, characterized in that the connection between the drainage bag (3) and the rear end of the drainage tube (1) is seamless. 8. The thoracentesis drainage device according to any one of claims 2-7, characterized in that, the drainage tube (1) is also provided with an anti-folding device for preventing the drainage tube (1) from folding.

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