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CN-122006081-A - Celioscope biliary tract adjustable pressure saccule dilating catheter

CN122006081ACN 122006081 ACN122006081 ACN 122006081ACN-122006081-A

Abstract

The invention discloses a celioscope biliary tract adjustable pressure-regulating balloon dilation catheter which comprises a catheter main body, a segmented pressure-regulating dilation balloon and an integrated pressure-regulating handle, wherein a biliary tract endoscopic cavity, a graded dilation liquid cavity and an anti-reflux cavity are integrally formed in the catheter main body, the graded dilation liquid cavity is communicated with the segmented pressure-regulating dilation balloon, an dilation liquid interface, a biliary tract interface and a pressure display window are arranged on the integrated pressure-regulating handle, the dilation liquid interface and the biliary tract interface are respectively communicated with the graded dilation liquid cavity and the biliary tract endoscopic cavity in a sealing manner, the catheter main body adopts a three-cavity parallel integrated structure, the biliary tract endoscopic cavity provides a stable threading channel for the biliary tract, the graded dilation liquid cavity and the anti-reflux cavity are symmetrically distributed on two sides, the cavities independently operate without interference, and the integral forming process thoroughly eliminates splicing gaps, thereby improving the flexibility and the structural strength of the whole catheter, guaranteeing the sealing performance of the cavity and adapting to flexible control in the biliary tract under the celioscope.

Inventors

  • XU SONG
  • XU MING

Assignees

  • 绍兴市上虞人民医院

Dates

Publication Date
20260512
Application Date
20260203

Claims (8)

  1. 1. The celioscope biliary tract adjustable pressure balloon dilation catheter is characterized by comprising a catheter main body (1), a segmented pressure adjustable dilation balloon (2) and an integrated pressure adjustment handle (3), wherein a biliary tract endoscopic cavity (4), a graded pressure adjustable dilation liquid cavity (5) and an anti-reflux cavity (6) are integrally formed in the catheter main body (1), the graded dilation liquid cavity (5) is communicated with the segmented pressure adjustable dilation balloon (2), an dilation liquid interface (7), a biliary tract endoscopic interface (8) and a pressure display window (9) are arranged on the integrated pressure adjustment handle (3), the dilation liquid interface (7) and the biliary tract endoscopic interface (8) are respectively communicated with the graded dilation liquid cavity (5) and the biliary tract endoscopic cavity (4) in a sealing mode, a multidirectional observation window (10) is formed in a corresponding area of the segmented pressure adjustable dilation balloon (2), a biliary tract probe front end head is communicated with the segmented pressure adjustable dilation balloon (2) through the biliary tract interface (8), the multidirectional observation window (4) and the pressure adjustable balloon probe (10) to the outer side of the integrated pressure adjustment handle (11), and the pressure adjustable balloon probe (3) is connected with an integrated pressure adjustment module (11) in a grading mode.
  2. 2. The celioscope biliary tract adjustable pressure balloon dilation catheter disclosed by claim 1 is characterized in that one end of the catheter main body (1) far away from a handle is provided with a round blunt anti-slip guide head (12), the segmented adjustable pressure dilation balloon (2) is arranged close to the guide head, the segmented adjustable pressure dilation balloon (2) is formed by axially splicing 2-3 segments of independent dilation units, the overall outer diameter before dilation is less than or equal to 4.8mm, and the segmented adjustable pressure dilation balloon is matched with a celioscope 5mm puncture sleeve.
  3. 3. The laparoscopic biliary tract adjustable pressure balloon dilation catheter of claim 1, wherein the multidirectional observation window (10) comprises a forward window and a plurality of lateral windows, the forward window is in the same direction as the axis of the catheter, the lateral windows form an included angle of 45 degrees with the axis, and an anti-fog wear-resistant coating (13) covers the outer side of the observation window.
  4. 4. The celioscope biliary tract adjustable pressure balloon dilation catheter of claim 3, wherein the catheter main body (1) is of a three-cavity parallel integrated structure, the choledochoscope cavity (4) is positioned at the axis, and the graded dilation liquid cavity (5) and the anti-reflux cavity (6) are symmetrically distributed on two sides.
  5. 5. The laparoscopic biliary tract adjustable pressure balloon dilation catheter of claim 4, wherein the reflux prevention lumen (6) is connected with an annular blocking balloon (14) on the catheter main body (1), the annular blocking balloons (14) are positioned on two sides of the segmented adjustable pressure dilation balloon (2), and the outer diameter of the inflated inflatable balloon is 2mm larger than the maximum dilation diameter of the dilation balloon, so that bile reflux bidirectional blocking is realized.
  6. 6. The laparoscopic biliary tract adjustable pressure balloon dilation catheter of claim 5, wherein flexible connecting sections are arranged among dilation units of the segmented pressure adjustable dilation balloon (2), the segmented pressure adjustable dilation balloon (2) is made of medical high-elasticity polyurethane, the units are independently or synchronously dilated, the effective dilation length is 15-35 mm, and the dilation diameter of a single unit is 6-12 mm.
  7. 7. The laparoscopic biliary tract adjustable pressure balloon dilation catheter of claim 6, wherein flexible supporting ribs (15) which are axially distributed are arranged on the outer surface of the segmented pressure adjustable dilation balloon (2), the flexible supporting ribs (15) are made of medical silica gel and are uniformly distributed along the circumferential direction of the segmented pressure adjustable dilation balloon (2), and the dilation uniformity is ensured.
  8. 8. The celioscope biliary tract adjustable pressure balloon dilation catheter of claim 1 is characterized in that an independent blocking balloon inflation and deflation button (16) is arranged on the integrated pressure regulating handle (3), is communicated with the anti-reflux cavity (6), has an operation stroke of less than or equal to 1cm and is suitable for single-hand operation under a celioscope.

Description

Celioscope biliary tract adjustable pressure saccule dilating catheter Technical Field The invention relates to the technical field of dilation catheters, in particular to a laparoscopic biliary tract adjustable pressure balloon dilation catheter. Background The laparoscopic biliary tract dilation operation has extremely high requirements on the sealing performance, dilation suitability, reflux prevention effect and intraoperative visual field of the catheter. The existing expansion catheter has obvious short plates, wherein the cavity is of a spliced structure, the sealing is poor, the flexibility is insufficient, the balloon is easy to clamp in the biliary tract, the balloon is of an integral type, narrow focuses with different lengths cannot be matched, the pressure is uneven during expansion, the biliary tract wall is easily damaged, the effective anti-reflux design is lacking, bile is easy to pollute the abdominal cavity or reflux into the liver, the infection risk is increased, the observation field of view is single, the operation accuracy is easily affected due to fog resistance or visual angle limitation, the operation parts are dispersed, the single-hand fine operation is not matched under the laparoscope, and the clinical safe and accurate expansion requirement is difficult to meet. For this reason, we propose a laparoscopic biliary tract adjustable pressure balloon dilation catheter. Disclosure of Invention The invention aims to provide a celioscope biliary tract adjustable pressure balloon dilation catheter, which has the core requirements that a three-cavity parallel integrated structure is adopted, independent sealing of a cavity and flexibility of the catheter are guaranteed, a segmented adjustable pressure balloon is designed, independent/synchronous dilation is supported, narrow focuses with different lengths are adapted, a double-sided annular blocking balloon is additionally arranged, bile reflux bidirectional blocking is realized, a multidirectional observation window and an anti-fog coating are arranged, an omnibearing clear view in operation is guaranteed, an integrated pressure regulating handle is adapted to single-hand operation under a celioscope, and finally, the aims of reliable sealing, accurate dilation, effective reflux prevention, clear view and convenient operation are achieved, and the safety and the efficiency of an operation are improved. In order to achieve the above purpose, the present invention adopts the following technical scheme: The celioscope biliary tract adjustable pressure balloon dilation catheter comprises a catheter main body, a segmented adjustable pressure dilation balloon and an integrated pressure adjustment handle, wherein a choledochoscope cavity, a graded dilation liquid cavity and an anti-reflux cavity are integrally formed in the catheter main body, the graded dilation liquid cavity is communicated with the segmented adjustable pressure dilation balloon, an dilation liquid interface, a choledochoscope interface and a pressure display window are arranged on the integrated pressure adjustment handle, the dilation liquid interface and the choledochoscope interface are respectively communicated with the graded dilation liquid cavity and the choledochoscope cavity in a sealing mode, a multidirectional observation window is formed in a corresponding area of the segmented adjustable pressure dilation balloon in the choledochoscope cavity, a camera at the front end of the choledochoscope extends to the outer side of the balloon through the choledochoscope interface, the choledochoscope cavity and the multidirectional observation window, a pressure sensing probe is arranged in the graded dilation liquid cavity, and the probe is electrically connected with a pressure feedback module in the integrated pressure adjustment handle. As a still further scheme of the invention, one end of the catheter main body far away from the handle is provided with a round and blunt anti-skid guide head, the sectional type adjustable pressure-enlarging and expanding balloon is arranged close to the guide head, and is formed by axially splicing 2-3 sections of independent expansion units, the overall outer diameter before expansion is less than or equal to 4.8mm, and the sectional type adjustable pressure-enlarging and expanding balloon is matched with a laparoscope 5mm puncture sleeve. As a still further proposal of the invention, the multidirectional observation window comprises a forward window and 2 lateral windows, the forward window is in the same direction with the axis of the catheter, the lateral windows form an included angle of 45 degrees with the axis, and the outer side of the observation window is covered with an anti-fog wear-resistant coating. As a still further proposal of the invention, the catheter body is of a three-cavity parallel integrated structure, the choledochoscope cavity is positioned at the axle center, and the graded expanding liquid cavity and th