CN-122006085-A - Balloon dilation catheter capable of conveying intracavity therapeutic apparatus

Abstract

The invention relates to a balloon dilation catheter capable of conveying an intracavity therapeutic instrument, and relates to the technical field of medical equipment. The balloon comprises a luer connector, an inner tube, an outer tube, a balloon and a head end, wherein one end of the inner tube is connected with the luer connector, the other end of the inner tube is connected with the head end, one end of the outer tube is connected with the luer connector, the other end of the outer tube is connected with the balloon, the outer tube and the balloon are sleeved on the inner tube, the balloon is of a three-layer structure, and a sealing layer, a structural layer and a blood vessel contact layer are sequentially arranged from inside to outside. The invention can be used for conveying and releasing the thrombus taking bracket and the intracranial bracket, simplifies the complexity of operation of doctors, simplifies the flow, reduces the operation time, improves the safety and is beneficial to the timely treatment of diseases.

Inventors

• MA ZHENJIAN
• CHEN KANGYIN
• WEI MING
• LI HONG
• XU YONGBO

Assignees

• 天津医科大学第二医院

Dates

Publication Date

20260512

Application Date

20260327

Claims (10)

1. 1. A balloon dilation catheter capable of conveying an intracavity therapeutic apparatus is characterized by comprising a luer connector, an inner tube, an outer tube, a balloon and a head end, wherein one end of the inner tube is connected with the luer connector, the other end of the inner tube is connected with the head end, one end of the outer tube is connected with the luer connector, the other end of the outer tube is connected with the balloon, the outer tube and the balloon are sleeved on the inner tube, the balloon is of a three-layer structure, and a sealing layer, a structural layer and a blood vessel contact layer are sequentially arranged from inside to outside.
2. 2. A balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein said balloon is provided with a nano-scale groove structure on its outer surface.
3. 3. A balloon dilation catheter for delivering an intraluminal therapeutic device according to claim 1 wherein said luer fitting is provided with a first tapered inlet port and a second tapered inlet port, said first tapered inlet port being in communication with the inner tube and said second tapered inlet port being in communication with the passageway between the outer tube and the inner tube.
4. 4. A balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein said sealing layer is formed from a block polyether amide.
5. 5. The balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 4 wherein said structural layer is formed from a nano-scale blend of polyethylene terephthalate and nylon 12.
6. 6. The balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 5 wherein said vascular layer contacting material is a styrene block copolymer or TPU.
7. 7. The balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein said inner tube is configured in a three-layer configuration, an outer layer is polyether block amide, an intermediate layer is polyurethane, and an inner layer is polytetrafluoroethylene coating.
8. 8. A balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein a highly visible platinum iridium alloy marker band is disposed at each end of the balloon, the proximal platinum iridium alloy marker band being connected to the inner tube and a slight, controllable axial sliding gap being disposed between the distal platinum iridium alloy marker band and the guidewire tube.
9. 9. A balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein said outer tube inner wall is provided with spiral channels having a width of 0.1mm and a depth of 0.05mm.
10. 10. The balloon dilation catheter for delivering an endoluminal therapeutic device according to claim 1 wherein said head end is of graduated hardness design, proximal end 72D, distal end down to 55D, material is polyether block amide resin, and said head end is of bullet-head configuration at an oblique angle of 15 °.

Description

Balloon dilation catheter capable of conveying intracavity therapeutic apparatus Technical Field The invention relates to the technical field of medical equipment, in particular to a balloon dilation catheter capable of conveying an intracavity therapeutic instrument. Background Balloon catheters are widely used in the treatment of intracranial vascular stenosis or acute thrombosis, and are used primarily to dilate the blood vessel or to occlude the blood flow at the proximal end. The conventional mode at present is to use the balloon catheter firstly, then take out the balloon catheter, and then use the microcatheter, so that the process is complex in operation, the operation time is prolonged, time and labor are wasted, and timely treatment of diseases is not facilitated. Therefore, how to provide a balloon dilation catheter capable of conveying an endoluminal therapeutic apparatus becomes a technical problem that needs to be solved urgently by those skilled in the art. Disclosure of Invention The invention aims to solve the technical problems of overcoming the defects of the prior art, and provides the balloon dilation catheter capable of conveying the intracavity therapeutic instrument, which can be used for conveying and releasing the thrombus taking support and the intracranial support, simplifies the complexity of operation of doctors, simplifies the flow, reduces the operation time, improves the safety and is beneficial to timely treatment of diseases. The balloon dilation catheter capable of conveying the intracavitary therapeutic instrument comprises a luer connector, an inner tube, an outer tube, a balloon and a head end, wherein one end of the inner tube is connected with the luer connector, the other end of the inner tube is connected with the head end, one end of the outer tube is connected with the luer connector, the other end of the outer tube is connected with the balloon, the outer tube and the balloon are sleeved on the inner tube, the balloon is of a three-layer structure, and a sealing layer, a structural layer and a contact vascular layer are sequentially arranged from inside to outside. Further, the outer surface of the balloon is provided with a nanoscale groove structure. Further, the luer connector is provided with a first conical liquid inlet and a second conical liquid inlet, the first conical liquid inlet is communicated with the inner tube, and the second conical liquid inlet is communicated with a channel between the outer tube and the inner tube. Further, the sealing layer is made of block polyether amide. Further, the material of the structural layer adopts a nano-scale blend of polyethylene terephthalate and nylon 12. Further, the material contacting the blood vessel layer adopts a styrene block copolymer or TPU. Further, the inner tube is of a three-layer structure, the outer layer is made of polyether block amide, the middle layer is made of polyurethane, and the inner layer is made of polytetrafluoroethylene coating. Further, a high-visibility platinum-iridium alloy marker band is arranged at two ends of the balloon respectively, the near-end platinum-iridium alloy marker band is connected with the inner tube, and a tiny and controllable axial sliding gap is arranged between the far-end platinum-iridium alloy marker band and the guide wire tube. Further, the inner wall of the outer tube is provided with a spiral diversion trench, the width is 0.1mm, and the depth is 0.05mm. Further, the head end is designed to have gradual hardness, the proximal end is 72D, the distal end is reduced to 55D, the material is polyether block amide resin, the head end is in a bullet structure, and the oblique angle is 15 degrees. The invention has the beneficial effects that: The invention can be used for conveying and releasing the thrombus taking bracket and the intracranial bracket, simplifies the complexity of operation of doctors, simplifies the flow, reduces the operation time, improves the safety and is beneficial to the timely treatment of diseases. Drawings FIG. 1 is a schematic diagram of the overall structure of the present invention; Fig. 2 is a schematic structural view of the balloon of the present invention. Wherein, in the figure: 1. Luer connector 2, inner tube 3, outer tube 4, saccule 5, head end 6, taper liquid inlet I, taper liquid inlet II, 8, sealing layer 9, structure layer 10, contact vascular layer. Detailed Description In order to achieve the above objects and effects, the present invention adopts the technical means and structure, and the features and functions of the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. As shown in fig. 1 and 2, the invention provides a neurovascular balloon 4 expansion catheter capable of being used for pushing an intracranial thrombus taking support, which comprises a luer connector 1, an inner tube 2, an outer tube 3, a balloon 4 and a head end 5, wherein one en