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CN-224220561-U - Balloon catheter with special-shaped guide wire

CN224220561UCN 224220561 UCN224220561 UCN 224220561UCN-224220561-U

Abstract

The utility model discloses a balloon catheter with a special-shaped guide wire, which comprises a guide tube, wherein an expansion balloon is fixedly connected to the outer part of the guide tube, the expansion balloon is connected and communicated with the guide tube, the guide wire is fixedly arranged in the guide tube, the guide wire comprises a guide wire main body, the front part of the guide wire main body is fixedly connected with a stepless variable diameter guide wire, the stepless variable diameter guide wire head is arranged in a double-bending mode, and the stepless variable diameter guide wire head is provided with a first bending and a second bending. The design of the very variable diameter guide wire provides gradual rigidity and flexibility, particularly the double-bending design of the head comprises a first bending and a second bending, so that the flexibility of the guide wire is enhanced, the double-bending structure can prevent the guide wire from excessive linear stretching when passing through a bent blood vessel or a ventricle, and the friction force between the guide wire and the wall of the blood vessel is reduced, so that the adaptability of the guide wire and the passing performance of a guide tube are improved.

Inventors

  • CAI JIN
  • TAN MAOCAI

Assignees

  • 铂珑生物科技(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20241231

Claims (8)

  1. 1. The balloon catheter with the special-shaped guide wire comprises a guide tube (2), wherein an expansion balloon (3) is fixedly connected to the outside of the guide tube (2), the balloon catheter is characterized in that the expansion balloon (3) is connected and communicated with the guide tube (2), the guide wire is fixedly arranged in the guide tube (2), Wherein the guide wire comprises a guide wire main body (5), The novel stepless diameter-changing guide wire comprises a guide wire main body (5), wherein a stepless diameter-changing guide wire (7) is fixedly connected to the front portion of the guide wire main body, the head of the stepless diameter-changing guide wire (7) is arranged in a double-bent mode, and a first bending part (8) and a second bending part (9) are arranged at the head of the stepless diameter-changing guide wire (7).
  2. 2. A balloon catheter with a profiled guide wire as claimed in claim 1, characterized in that the rear part of the stepless variable diameter guide wire (7) is wound with a wire winding (10).
  3. 3. The balloon catheter with the special-shaped guide wire according to claim 1, wherein the developing ring (11) is sleeved outside the stepless variable-diameter guide wire (7).
  4. 4. The balloon catheter with the special-shaped guide wire according to claim 1, wherein the guide tube (2) comprises a tube body (201), and a second through hole (203) is formed in the tube body (201).
  5. 5. The balloon catheter with the special-shaped guide wire according to claim 4, wherein the inflatable balloon (3) comprises a balloon body (301), a cavity (302) is formed in the balloon body (301), an input port (303) is formed in the balloon body (301), and the input port (303) is connected with the second through hole (203).
  6. 6. The balloon catheter with the special-shaped guide wire of claim 5, wherein a net tube (305) which deforms along with the balloon (301) and supports is fixedly connected inside the balloon (301).
  7. 7. The balloon catheter with the special-shaped guide wire according to claim 6, wherein a pressure sensor (304) is fixedly arranged inside the balloon body (301), the guide wire is fixed at the first through hole (202) of the tube body (201), a wire (6) is embedded inside the guide wire, and the wire (6) is fixedly connected with the pressure sensor (304).
  8. 8. The balloon catheter with the special-shaped guide wire according to claim 7, wherein the handle (1) of the tube body (201) is fixedly installed and provided with a gathering channel (4), and the gathering channel (4) is communicated with the first through hole (202) and the second through hole (203).

Description

Balloon catheter with special-shaped guide wire Technical Field The utility model belongs to the technical field of balloon catheters, and particularly relates to a balloon catheter with a special-shaped guide wire. Background The balloon catheter is a commonly used medical instrument, is mainly used for treating vascular dilatation, stenotic lesion and other cavity and tract operations, and structurally comprises a soft tube body and an inflatable balloon, and is pressurized and inflated after being positioned at a lesion part through a guide tube, so that the blood flow can be restored to be smooth or a stenotic channel can be enlarged, and the balloon catheter is commonly used in the fields of coronary intervention, digestive tract stenotic treatment, urinary system intervention and the like, and has the advantages of accurate operation, small wound and recovery. However, the prior art has some problems that the conventional balloon catheter has insufficient flexibility of the guide wire in interventional operation, which causes problems of difficult positioning, inconvenient operation, blocked guide tube and the like when the guide tube passes through a complex or narrow blood vessel, so we propose a balloon catheter with a special-shaped guide wire. Disclosure of utility model Aiming at the problems existing in the prior art, the utility model provides a balloon catheter with a special-shaped guide wire. The utility model discloses a balloon catheter with a special-shaped guide wire, which comprises a guide tube, wherein an expansion balloon is fixedly connected to the outer part of the guide tube, the expansion balloon is connected and communicated with the guide tube, the guide wire is fixedly arranged in the guide tube, the guide wire comprises a guide wire main body, the front part of the guide wire main body is fixedly connected with a stepless reducing guide wire, the stepless reducing guide wire head is arranged in a double-bent shape, and the stepless reducing guide wire head is provided with a first bend and a second bend. Preferably, the rear part of the stepless variable diameter guide wire is wound with a wire winding. In the utility model, the developing ring is sleeved outside the stepless variable diameter guide wire. Preferably, the guide tube comprises a tube body, and a second through hole is formed in the tube body. As a preferable aspect of the present utility model, the inflatable balloon includes a balloon body, a cavity is formed inside the balloon body, an input port is formed inside the balloon body, and the input port is connected and communicated with the second through hole. Preferably, the inside of the bag body is fixedly connected with a net pipe which deforms along with the bag body and supports the bag body. As the preferable mode of the utility model, the pressure sensor is fixedly arranged in the bag body, the guide wire is fixed at the first through hole of the pipe body, and a wire is embedded in the guide wire and fixedly connected with the pressure sensor. Preferably, the pipe body handle is fixedly installed with a gathering channel, and the gathering channel is communicated with the first through hole and the second through hole. Compared with the prior art, the utility model has the following beneficial effects: The utility model provides gradual rigidity and flexibility through the design of the stepless variable diameter guide wire, particularly the flexibility of the guide wire is enhanced through the double-bending design of the head part comprising the first bending and the second bending, and the double-bending structure can prevent the guide wire from excessive linear stretching when passing through a tortuous blood vessel or a ventricle, and reduce the friction force with the blood vessel wall, thereby improving the adaptability of the guide wire and the trafficability of a guide tube. Drawings FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present utility model; FIG. 2 is a schematic view of a guide tube according to an embodiment of the present utility model; FIG. 3 is a schematic view of a guide wire structure provided by an embodiment of the present utility model; fig. 4 is a schematic cross-sectional view of an inflatable balloon according to an embodiment of the present utility model. In the figure, 1, a grip, 2, a guide tube, 3, an inflatable balloon, 4, a gathering channel, 5, a guide wire main body, 6, a guide wire, 7, a stepless variable diameter guide wire, 8, a first bend, 9, a second bend, 10, a wire winding, 11 and a developing ring; 201. 202, a first through hole, 203, a second through hole; 301. 302 parts of the capsule body, 303 parts of the cavity, 303 parts of the input port, 304 parts of the pressure sensor, 305 parts of the net pipe. Detailed Description For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illus