Disposable indwelling drainage catheter bag

Abstract

The utility model relates to the field of medical instruments, in particular to a disposable indwelling drainage catheter bag which comprises a guide wire, a drainage catheter and a sterile application. The drainage tube penetrating into the body of the patient and the skin of the patient are relatively fixed through the arrangement of the sterile application, the drainage tube is fixed through the cooperation of the balloon and the sterile application, and compared with the prior art that an indwelling drainage catheter and the surrounding skin are fixed together through sutures, the pain of the patient is reduced; meanwhile, the situation that the wound infection risk is increased due to the fact that the wound area is increased through sutures is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a disposable indwelling drainage catheter kit. Background Technology

[0002] Drainage catheters are commonly used in abdominal surgery. These indwelling drainage catheters are placed after abdominal surgery, passing through the abdominal wall with one end remaining inside the abdominal cavity and the other outside the body. The external end connects to a drainage bottle or bag. Their function is to drain postoperative peritoneal fluid and blood into the external drainage bottle or bag, preventing postoperative ascites and hematoma. Current techniques typically use sutures around the insertion point of the indwelling drainage catheter to fix its length and position within the abdominal cavity, securing the catheter to the surrounding skin. Removing these sutures after surgery requires removing the drainage tube, causing pain for the patient and increasing the risk of wound infection due to the increased wound size. Utility Model Content

[0003] The technical solution adopted by this utility model to solve its technical problem is: to provide a disposable indwelling drainage catheter kit, comprising:

[0004] A guide wire, used to guide drainage;

[0005] A drainage catheter includes a first catheter, a delivery tube disposed at the end of the first catheter, and a drainage tube. A fixing balloon is connected to the first catheter. An expansion member is provided on the delivery tube and communicates with the fixing balloon. The expansion member is used to expand the balloon. A plurality of drainage holes are provided at the end of the first catheter. The drainage holes communicate with the drainage tube. The drainage tube is connected to a negative pressure drainage bag. The diameter of the drainage tube and the diameter of the first catheter are both larger than the diameter of the guide wire.

[0006] A sterile dressing is attached to the end of the drainage catheter that protrudes from the skin, and the sterile dressing is used to fix the drainage catheter to the wound.

[0007] Furthermore, the end of the first catheter is provided with a two-way connector, which has a first interface and a second interface, and the first interface and the second interface are respectively connected to the delivery tube and the drainage tube.

[0008] Furthermore, the first catheter has a sealed tube wall, and a closed flow channel is formed between the sealed tube wall and the tube wall of the first catheter. The flow channel is sealed and connected to the fixed balloon, the first interface, and the delivery tube. A suction cavity is formed between the tube wall of the first catheter and the sealed tube wall, and the suction cavity is connected to the drainage hole, the second interface, and the drainage tube.

[0009] Furthermore, it also includes an expansion tube, which includes a sheath tube and a positioning part inserted inside the sheath tube. The end of the positioning part is provided with a handle, and the handle is provided with a limiting protrusion. The limiting protrusion abuts against the end of the sheath tube. The positioning part is provided with a puncture hole that is adapted to the guide wire.

[0010] Furthermore, it also includes a catheter fixation clip, which is disposed at the two-way connector and is used to fix the drainage catheter and the patient's skin relative to each other.

[0011] Furthermore, the expander is an airbag, and the expander is connected to an air pump or a water pump.

[0012] Furthermore, the end of the expansion member is provided with a one-way connector, and the expansion member is connected to an air pump or a water pump through the one-way connector.

[0013] Furthermore, the drainage tube is equipped with a medical stop clamp, which is used to interrupt the flow of liquid in the drainage tube.

[0014] Furthermore, the end of the drainage tube is provided with a wing-shaped connector, and the drainage tube is connected to the negative pressure drainage bag through the wing-shaped connector.

[0015] The beneficial effects of this utility model are: it provides a disposable indwelling drainage catheter kit, including a guide wire, a drainage catheter, and a sterile dressing. By setting a balloon on the drainage catheter to expand it to support the lesion in the patient's body, and by setting a sterile dressing to fix the drainage tube inserted into the patient's body and the patient's skin, the balloon and the sterile dressing work together to fix the drainage tube. Compared with the prior art of fixing the indwelling drainage catheter and the surrounding skin together with sutures, it reduces patient pain and reduces the risk of wound infection caused by the increased wound area due to sutures. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 A structural diagram of the drainage catheter provided by this utility model;

[0018] Figure 2 A structural diagram of the guide wire provided by this utility model;

[0019] Figure 3 Structural diagram of the expansion tube provided by this utility model;

[0020] Figure 4 This is a structural diagram of the sterile dressing provided by this utility model;

[0021] Figure 5 for Figure 1 A partial cross-sectional view of the drainage catheter shown;

[0022] Figure 6 for Figure 5 Enlarged view of point A.

[0023] Explanation of reference numerals in the attached drawings: 1. Guide wire; 2. First catheter; 21. Fixation balloon; 22. Drainage hole; 23. Sealing tube wall; 231. Flow channel; 24. Suction chamber; 3. Delivery tube; 31. Dilatation element; 311. One-way connector; 4. Drainage tube; 41. Medical anti-drain clamp; 42. Wing connector; 5. Sterile dressing; 6. Two-way connector; 61. First interface; 62. Second interface; 7. Sheath tube; 71. Positioning part; 711. Handhold part; 712. Limiting protrusion; 713. Puncture hole; 8. Catheter fixation clamp. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Please refer to Figure 1-6 This utility model provides a disposable indwelling drainage catheter kit, including a guide wire 1, a drainage catheter and a sterile dressing 5. The guide wire 1 provided by this utility model is used in conjunction with a puncture needle, and the indwelling drainage catheter kit provided by this utility model is a disposable item.

[0026] The guide wire 1 is used to guide the drainage. Specifically, the guide wire 1 is existing technology and will not be described in detail in this utility model.

[0027] The drainage catheter includes a first catheter 2, a delivery tube 3 and a drainage tube 4 disposed at the end of the first catheter 2. The first catheter 2 is provided with a fixing balloon 21, and the delivery tube 3 is provided with an expansion member 31 that communicates with the fixing balloon 21. The expansion member 31 is used to expand the balloon. The end of the first catheter 2 is provided with a plurality of drainage holes 22, which communicate with the drainage tube 4. The drainage tube 4 is connected to a negative pressure drainage bag. The diameter of the drainage tube 4 and the diameter of the first catheter 2 are both larger than the diameter of the guide wire 1.

[0028] The first conduit 2 is provided with a two-way connector 6 at its end, and the first conduit 2 is connected to the delivery tube 3 and the drainage tube 4 through the two-way connector 6. Furthermore, the two-way connector 6 is provided with a first interface 61 and a second interface 62, and the first interface 61 and the second interface 62 are respectively connected to the delivery tube 3 and the drainage tube 4.

[0029] The first catheter 2 has a sealed tube wall 23, forming a closed flow channel 231 between the sealed tube wall 23 and the tube wall of the first catheter 2. The flow channel 231 is sealed and connected to the fixed balloon 21, the first interface 61, and the delivery tube 3. A suction cavity 24 is formed between the tube wall of the first catheter 2 and the sealed tube wall 23. The suction cavity 24 is connected to the drainage hole 22, the second interface 62, and the drainage tube 4, making the balloon insertion channel and the drainage channel relatively independent and not interfering with each other. Specifically, the diameter of the suction cavity 24 is larger than the diameter of the guide wire 1, and the length of the guide wire 1 is greater than the length of the drainage catheter and the drainage tube 4, so that the drainage catheter can enter the patient's body along the guide wire 1 and the guide wire 1 can be withdrawn from the drainage tube 4.

[0030] Furthermore, the dilator 31 is an air balloon, and it is connected to an air pump or a water pump. Specifically, when the dilator 31 is connected to the air pump, the air pump introduces air into the balloon; when the dilator 31 is connected to the water pump, the water pump introduces saline solution containing contrast agent into the balloon. The end of the dilator 31 is provided with a one-way connector 311, through which the dilator 31 is connected to the air pump or water pump, thereby preventing the backflow of gas or liquid introduced into the dilator 31 through the delivery tube 3 after balloon dilation.

[0031] A sterile dressing 5 is attached to the end of the drainage catheter that protrudes through the skin, and is used to fix the drainage catheter at the wound site. By placing a balloon on the drainage catheter to expand it and support it against the lesion in the patient's body, and by using a sterile dressing 5 to fix the drainage tube 4 inserted into the patient's body relative to the patient's skin, the balloon and the sterile dressing 5 work together to fix the drainage tube 4. Compared with the prior art of fixing the indwelling drainage catheter to the surrounding skin with sutures, this reduces patient pain and also reduces the risk of increased wound infection caused by sutures increasing the wound area.

[0032] Optionally, the disposable indwelling drainage catheter kit also includes a dilator, which includes a sheath 7 and a positioning part 71 inserted inside the sheath 7. The end of the positioning part 71 has a handle 711 with a limiting protrusion 712. The limiting protrusion 712 abuts against the end of the sheath 7. The positioning part 71 has a puncture hole 713 adapted to the guide wire 1. Specifically, the positioning part 71 and the sheath 7 can be fixedly connected or slidably connected. When the puncture channel needs to be enlarged, the puncture hole 713 on the positioning part 71 is inserted onto the guide wire 1, and the handle 711 is pushed. The handle 711 pushes the sheath 7 through the limiting protrusion 712 to dilate the puncture channel at the puncture point. After dilation, the positioning part 71 and the sheath 7 are grasped, allowing the dilator to slowly withdraw from the patient's body.

[0033] Furthermore, the disposable indwelling drainage catheter kit also includes a catheter fixation clip 8, which is disposed at the two-way connector 6. The catheter fixation clip 8 is used to fix the drainage catheter relative to the patient's skin. The catheter fixation clip 8 can further fix the position of the drainage catheter relative to the patient. Specifically, in this embodiment, the catheter fixation clip 8 is a medical catheter clip purchased from Shandong Jianze Medical Technology Co., Ltd. The model of the catheter fixation clip 8 is not limited to this; any catheter fixation clip 8 that can achieve the fixation function can be used in the technical solution of this application.

[0034] Furthermore, a medical stop clamp 41 is provided on the drainage tube 4, which is used to interrupt the flow of liquid in the drainage tube 4.

[0035] Furthermore, the end of the drainage tube 4 is provided with a wing-shaped connector 42, and the drainage tube 4 is connected to the negative pressure drainage bag through the wing-shaped connector 42.

[0036] The implementation principle of the disposable indwelling drainage catheter kit involved in this utility model is as follows:

[0037] First, locate the puncture point based on ultrasound or normal anatomy, select the puncture point, insert the puncture needle into the puncture point, and wait for the ultrasound to show that the end of the puncture needle has reached the lesion position. Then, remove the needle core of the puncture needle and pass the guide wire through the inner hole of the puncture needle until it reaches the lesion position. If the puncture channel needs to be enlarged, use the puncture hole 713 on the positioning part 71 to fit onto the guide wire 1, and push the hand handle 711 to expand the puncture channel at the puncture point. After the expansion is completed, slowly withdraw the positioning part 71.

[0038] If the puncture channel does not need to be enlarged, manually fix the guide wire 1, slowly withdraw the puncture needle from the skin, then insert the first catheter 2 onto the guide wire 1 and enter the puncture channel along the guide wire 1. The guide wire 1 moves along the suction chamber 24 until the end of the first catheter 2 reaches the lesion. Then, start the air pump to inflate the balloon, causing the balloon to expand and press against the lesion. Slowly withdraw the guide wire 1, then attach the sterile dressing 5 to the end of the drainage catheter exposed at the puncture point, fixing the drainage catheter and skin relatively. Connect the end of the drainage tube 4 to the negative pressure drainage bag, open the medical clamp 41 on the drainage tube 4, and begin draining the fluid in the patient's body. After drainage, remove the negative pressure drainage bag and seal it with a heparin cap. When it is necessary to remove the drainage catheter, use the air pump to remove the gas from the balloon, allowing the balloon to return to its original shape. Tear off the sterile dressing 5 and slowly rotate the drainage catheter until it is pulled out.

Claims

1. A disposable indwelling drainage catheter kit, characterized in that, include: A guide wire, used to guide drainage; A drainage catheter includes a first catheter, a delivery tube disposed at the end of the first catheter, and a drainage tube. A fixing balloon is connected to the first catheter. An expansion member is provided on the delivery tube and communicates with the fixing balloon. The expansion member is used to expand the balloon. A plurality of drainage holes are provided at the end of the first catheter. The drainage holes communicate with the drainage tube. The drainage tube is connected to a negative pressure drainage bag. The diameter of the drainage tube and the diameter of the first catheter are both larger than the diameter of the guide wire. A sterile dressing is attached to the end of the drainage catheter that protrudes from the skin, and the sterile dressing is used to fix the drainage catheter to the wound.

2. The single use indwelling drainage catheter kit of claim 1, wherein: The end of the first catheter is provided with a two-way connector, which has a first interface and a second interface, and the first interface and the second interface are respectively connected to the delivery tube and the drainage tube.

3. The single use indwelling drainage catheter kit of claim 2, wherein: The first catheter has a sealed tube wall inside, and a closed flow channel is formed between the sealed tube wall and the tube wall of the first catheter. The flow channel is sealed and connected to the fixed balloon, the first interface, and the delivery tube. A suction cavity is formed between the tube wall of the first catheter and the sealed tube wall. The suction cavity is connected to the drainage hole, the second interface, and the drainage tube.

4. The single use, indwelling drainage catheter kit of claim 1, wherein: It also includes an expansion tube, which includes a sheath tube and a positioning part inserted inside the sheath tube. The end of the positioning part is provided with a handle, and the handle is provided with a limiting protrusion. The limiting protrusion abuts against the end of the sheath tube. The positioning part is provided with a puncture hole that is adapted to the guide wire.

5. The single use, indwelling drainage catheter kit of claim 2, wherein: It also includes a catheter fixation clip, which is disposed at the two-way connector and is used to fix the drainage catheter and the patient's skin relative to each other.

6. The single use, indwelling drainage catheter kit of claim 1, wherein: The expander is an airbag, and the expander is connected to an air pump or a water pump.

7. The single use indwelling drainage catheter kit of claim 6, wherein: The end of the expansion member is provided with a one-way connector, and the expansion member is connected to an air pump or a water pump through the one-way connector.

8. The single use, indwelling drainage catheter kit of claim 1, wherein: The drainage tube is equipped with a medical stop clamp, which is used to interrupt the flow of liquid in the drainage tube.

9. The single use, indwelling drainage catheter kit of claim 1, wherein: The end of the drainage tube is provided with a wing-shaped connector, and the drainage tube is connected to the negative pressure drainage bag through the wing-shaped connector.

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