CN203001517U - Minimally-invasive thoracic closed drainage device - Google Patents

Abstract

The utility model discloses a minimally-invasive thoracic closed drainage device. The minimally-invasive thoracic closed drainage device comprises a puncture needle, a guide wire and a drainage duct, wherein a side hole is arranged on the drainage duct. The minimally-invasive thoracic closed drainage device is characterized by also comprising a thoracic wall expansion rod and a sleeving pipe, wherein the sleeving pipe is sleeved on the puncture needle, the sleeving pipe is formed by sequential connection of a plurality of annular plastic buckles, and the outer diameter of the thoracic wall expansion rod is the same as that of the drainage duct. The minimally-invasive thoracic closed drainage device is simple in structure and capable of fixing the puncture needle and effectively preventing lumen blockage.

Description

A minimally invasive closed chest drainage device

technical field

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

Background technique

Closed chest drainage is a common treatment method in thoracic surgery. A special silicone tube is inserted into the pleural cavity to continuously discharge the gas, pus or blood in the pleural cavity, restore the airtightness of the pleural membrane and rebuild the normal negative pressure of the pleural cavity. The purpose of treating pneumothorax, pleural effusion and empyema. The traditional chest drainage operation method is to cut the skin after local infiltration anesthesia, bluntly separate the chest wall tissue with vascular forceps until it breaks into the chest cavity, insert a chest drainage catheter with a relatively large diameter and hard texture, and suture the skin to fix it to the drainage bottle . The traditional closed thoracic drainage has a large local wound, which is easy to damage the intercostal blood vessels and cause a lot of bleeding. In severe cases, a thoracotomy is required; due to the poor effect of local anesthesia, blunt dissection of the pleural tissue is likely to cause serious complications such as pleural reactions and even shock. And there is a large scar left after healing, which brings great psychological burden to the patient.

In recent years, more and more central venous catheter devices have been used in chest drainage. It has the characteristics of simple operation, less trauma, less pain, safety and reliability, less complications, convenient patient activities, and easy acceptance. It is worthy of popularization and application in clinical work. For example, "a double-lumen central venous catheter" disclosed in the Chinese invention patent with the application number of 201110330192.9, which includes a double-lumen catheter, a connecting seat and an extension tube that are sequentially connected and communicated, but its design purpose is to directly infuse the drug In the central vein with fast blood flow, if it is used for closed thoracic drainage, there are the following problems: 1. After the puncture needle enters the thoracic cavity, an assistant is required to help fix the puncture needle during the guide wire entering the thoracic cavity from the puncture needle to prevent The puncture needle inadvertently punctures the lung tissue deeply, resulting in safety hazards such as pneumothorax; 2. The diameter of the catheter is small, and the drainage and exhaust speed of the pleural fluid are slow, which can easily lead to blockage of the lumen.

There are also some chest drainage devices in the prior art, such as the "chest drainage device" disclosed in the Chinese utility model patent with the application number 201020282983. The liquid tube and the liquid storage bottle connected to the end of the drain tube, but this chest drainage device is used instead of the ordinary chest drainage tube after thoracic surgery, and the larger diameter of the drainage tube still needs to be placed in an unsutured surgical incision or a special The incision can only be placed, which will still bring certain pain and psychological burden to the patient.

Contents of the invention

The purpose of the utility model is to provide a minimally invasive closed chest drainage device which can fix the position of the puncture needle and effectively avoid the clogging of the lumen.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a minimally invasive chest drainage device, including a puncture needle, a guide wire, and a drainage catheter. The drainage catheter is provided with side holes, and it also includes a chest wall expansion rod, a sleeve The cannula provided on the puncture needle is composed of a plurality of ring-shaped plastic buckles sequentially connected, and the chest wall expansion rod has the same outer diameter as the drainage catheter. the

In a preferred technical solution, the first end of the plastic buckle is provided with an annular protrusion, the outer diameter of the annular protrusion matches the inner diameter of the second end of the plastic buckle, and the annular protrusion is inserted into the The second ends of the plastic buckles are sequentially connected to form the sleeve, and the length of the sleeve can be flexibly selected during use by using multiple plastic buckles to form the sleeve.

In the preferred technical solution, the chest wall expansion rod is a tubular structure, and the surface of the chest wall expansion rod is provided with a scale, which can facilitate the operation personnel to record the insertion depth, and effectively avoid the damage to the human body caused by excessive penetration or insufficient depth. Augmentation doesn't work well.

In a preferred technical solution, the side hole is arranged at the first end of the drainage catheter, the inner diameter of the first end of the drainage catheter is smaller than the inner diameter of the drainage catheter, and the other end of the drainage catheter is provided with a three-way device and connected with a drainage bag . the

In a further technical solution, there are multiple side holes, and the side holes are set within a range of 10-30 mm from the first end of the drainage catheter.

In a preferred technical solution, scales are provided on the surface of the puncture needle.

In a further technical solution, the outer surface of the cannula is provided with a scale corresponding to the surface of the puncture needle, and the length of the cannula is the same as that of the puncture needle. the

In a preferred technical solution, the diameter of the guide wire is 2 mm, the outer diameter of the chest wall expansion rod is 5 mm, and the inner diameter is 2 mm. the

The outer diameter of the drainage catheter is 5mm, the inner diameter is 4mm, and the length is 150mm, and the inner diameter of the first end of the drainage catheter is 2mm.

When using the above technical solution, first select the puncture site according to the specific condition, keep the negative pressure on the syringe and reach the chest cavity, pull it out after seeing pleural effusion or gas, set the scale value of the cannula with the length of the needle inserted into the syringe as a reference, and remove the excess length. The length of the puncture needle left outside the patient's skin is equal to the length of the cannula, and the puncture needle is inserted along the original puncture point until the needle cannot be inserted due to the fixation of the cannula, and the gas or liquid is withdrawn again to confirm that the thoracentesis needle is in place. Insert the guide wire into the thoracic cavity to an appropriate depth along the puncture needle, pull out the puncture needle; fix the guide wire with the left hand, and use the chest wall expansion rod to expand each layer of the chest wall layer by layer along the guide wire to the chest cavity. The guidance of the guide wire can effectively avoid damage to the intercostal vessels After the chest wall expansion rod is pulled out, a drainage catheter is placed along the guide wire, the guide wire is pulled out, the drainage catheter is connected to the drainage bag, and the operation is completed.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

1. The utility model adopts a combined puncture needle sleeve, which can not only flexibly select the length of the sleeve, but also fix the penetration depth of the puncture needle into the body;

2. The inner hole of the plastic buckle of the cannula formed by the utility model is narrow at one end and wide at the other end, which is not only for the convenience of the connection of each buckle, but also increases the resistance between the puncture needle and the cannula, so that the guide wire can pass through When puncturing the needle, it will not drive the puncture needle too deep into the chest cavity;

3. There are scales on the puncture needle, cannula, and chest expansion rod of the utility model, so that the operator can record the insertion depth;

4. The utility model utilizes the thoracic expansion rod to expand the thoracic musculature and then inserts the drainage catheter, which can effectively avoid damage to the intercostal blood vessels and nerves.

Description of drawings

Fig. 1 is the combined view of the cross-section of the puncture needle sleeve;

Figure 2 is a comparison diagram of the puncture needle sleeve;

Figure 3 is a sectional view of the plastic buckle;

Figure 4 is a diagram of the combination of the chest wall expansion rod and the guide wire;

Figure 5 is a plan view of the drainage catheter.

Among them: 1. Puncture needle; 2. Guide wire; 3. Drainage catheter; 4. Side hole; 5. Cannula; 6. Chest expansion rod; 7. Plastic buckle; 10. An annular protrusion; 11. The first end of the plastic buckle; 12. The first end of the plastic buckle.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment one:

As shown in Figures 1-5, a minimally invasive chest drainage device includes a puncture needle 1, a guide wire 2, and a drainage catheter 3. The drainage catheter 3 is provided with a side hole 4, and it also includes a chest wall expansion rod 6, which is sleeved on the The cannula 5 on the puncture needle 1, the cannula 5 is composed of a plurality of ring-shaped plastic buckles 7 sequentially connected, and the chest wall expansion rod 6 has the same outer diameter as the drainage catheter 3 . the

The first end 11 of the plastic buckle is provided with an annular protrusion 10, the outer diameter of the annular protrusion 10 matches the inner diameter of the second end 12 of the plastic buckle, and the annular protrusion 10 is inserted into the second end 12 of the plastic buckle and The sleeves 5 are connected sequentially, and the length of the sleeves 5 can be flexibly selected during use by using a plurality of plastic clips 7 to connect and form the sleeves 5 .

The chest wall expansion rod 6 is a tubular structure, and the surface of the chest wall expansion rod 6 is provided with a scale, which can facilitate the operation personnel to record the insertion depth, and effectively avoid the damage to the human body caused by excessive penetration or poor expansion effect caused by insufficient depth.

The side hole 4 is arranged at the first end of the drainage catheter 3 , the inner diameter of the first end of the drainage catheter 3 is smaller than the inner diameter of the drainage catheter, and the other end of the drainage catheter 3 is provided with a three-way device 8 and connected with a drainage bag 9 . the

Eight side holes 4 are provided, and the side holes 4 are arranged within a range of 10-30 mm from the first end of the drainage catheter 3 .

The surface of the puncture needle 1 is provided with scales.

The outer surface of the sleeve 5 is provided with a scale corresponding to the surface of the puncture needle 1 , and the length of the sleeve 5 is the same as that of the puncture needle 1 . the

The diameter of the guide wire 2 is 2 mm, the outer diameter of the chest wall expansion rod 6 is 5 mm, and the inner diameter is 2 mm. the

The outer diameter of the drainage catheter 3 is 5 mm, the inner diameter is 4 mm, and the length is 150 mm. The inner diameter of the first end of the drainage catheter 3 is 2 mm.

When using, first select the puncture site according to the specific condition, infiltrate anesthesia layer by layer with a 5ml syringe, keep the negative pressure on the syringe until it reaches the chest cavity, pull it out after seeing pleural effusion or gas, take the needle length of the syringe as a reference, set the cannula to 5 scale values, and withdraw For the excess length, the length of the puncture needle 1 left outside the patient’s skin is equal to the length of the cannula 5, and the puncture needle 1 is placed along the original puncture point until the needle cannot be inserted due to the fixation of the cannula 5, and the gas or liquid is drawn back again , confirm that the thoracentesis needle 1 is in place, guide the guide wire 2 into the chest cavity to an appropriate depth along the puncture needle 1, pull out the puncture needle 1; fix the guide wire 2 with the left hand, and use the chest wall expansion rod 6 to expand the layers of the chest wall layer by layer along the guide wire 2 Up to the chest cavity, the guidance of the guide wire 2 can effectively avoid damage to the intercostal blood vessels and nerves. After pulling out the chest wall expansion rod 6, insert the drainage catheter 3 along the guide wire 2, pull out the guide wire 2, and connect the drainage catheter 3 to the drainage bag 9 , the operation is over.

In this embodiment, the inner hole of the plastic buckle 7 is narrow at one end and wide at the other end, not only to facilitate the connection of each buckle 7, but also to increase the resistance of the cannula 5 to the puncture needle 1, so that the guide wire 2 can pass through. The puncture needle 1 will not drive the puncture needle 1 too deep into the thoracic cavity, but first use the thoracic expansion rod 6 to expand the thoracic musculature and then insert the drainage catheter 3, so that the diameter of the drainage catheter 3 in the prior art can be introduced. The slightly larger drainage catheter 3 can effectively avoid blockage of the lumen, and a three-way device 8 is provided at the end of the drainage catheter 3 and is connected with a drainage bag 9, so that the drainage fluid can be extracted at any time during the drainage process for inspection and the drainage can be preserved of liquid.

Claims (9)

1. A minimally invasive thoracic closed drainage device, comprising a puncture needle, a guide wire, and a drainage catheter, the drainage catheter is provided with a side hole, it is characterized in that: it also includes a chest wall expansion rod, sleeved on the puncture needle The cannula on the tube is composed of a plurality of ring-shaped plastic buckles connected in sequence, and the chest wall expansion rod has the same outer diameter as the drainage catheter. 2. A minimally invasive closed chest drainage device according to claim 1, characterized in that: the first end of the plastic buckle is provided with an annular protrusion, and the outer diameter of the annular protrusion is the same as that of the said annular protrusion. The inner diameter of the second end of the plastic buckle matches, and the annular protrusion is inserted into the second end of the plastic buckle and connected in turn to form the sleeve. 3. A minimally invasive closed chest drainage device according to claim 1, characterized in that: the chest wall expansion rod is a tubular structure, and the surface of the chest wall expansion rod is provided with a scale. 4. A minimally invasive closed chest drainage device according to claim 1, characterized in that: the side hole is arranged at the first end of the drainage catheter, and the inner diameter of the first end of the drainage catheter is smaller than that of the drainage catheter. The inner diameter of the catheter, the other end of the drainage catheter is provided with a three-way device and connected with a drainage bag. 5. A minimally invasive closed chest drainage device according to claim 4, characterized in that: said side holes are provided with a plurality, and said side holes are arranged at a distance of 10-30 mm from said drainage catheter first end. within range. 6. A minimally invasive closed chest drainage device according to claim 1, characterized in that: the surface of the puncture needle is provided with a scale. 7. A minimally invasive closed chest drainage device according to claim 1, characterized in that: the outer surface of the cannula is provided with a scale corresponding to the surface of the puncture needle, and the length of the cannula is the same as that of the puncture needle. The puncture needles are the same length. 8 . A minimally invasive closed chest drainage device according to claim 7 , wherein the diameter of the guide wire is 2 mm, the outer diameter of the chest wall expansion rod is 5 mm, and the inner diameter is 2 mm. 9. A minimally invasive chest closed drainage device according to claim 4, characterized in that: the drainage catheter has an outer diameter of 5 mm, an inner diameter of 4 mm, and a length of 150 mm, and the inner diameter of the first end of the drainage catheter is 2 mm .

Images