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CN-224220563-U - Ureter leading-in sheath with bendable head end and fixed sacculus device

CN224220563UCN 224220563 UCN224220563 UCN 224220563UCN-224220563-U

Abstract

The utility model relates to the technical field of ureter introducing sheaths, solves the technical problem that the introducing sheath cannot limit in the urethra, in particular to a ureter introducing sheath with a bendable head end and a fixed saccule device, which comprises a protective tube as a supporting base, the protection tube is characterized in that a limiting steering assembly used for limiting and steering the guiding sheath is arranged on the inner side of the protection tube, a calculus discharging assembly used for discharging calculus and broken stones is arranged on the limiting steering assembly, the limiting steering assembly comprises a guiding tube arranged on the inner side of the protection tube, and one end of the guiding tube is connected with a limiting bag. Due to the arrangement of the limiting steering assembly, the balloon can be limited in the bladder by injecting water into the limiting balloon after the balloon is inserted into the renal pelvis, so that the stability of the introducing sheath in the urethra can be improved, the pressure of the renal pelvis can be effectively reduced by the fixing sheath, and the risk of infection is reduced.

Inventors

  • GONG BINBIN
  • XU LINGFAN
  • YANG YUMAN

Assignees

  • 安徽徕康医疗器械有限公司

Dates

Publication Date
20260512
Application Date
20250516

Claims (6)

  1. 1. The ureteral introducing sheath with the bendable head end provided with the fixed sacculus device comprises a protecting tube (1) serving as a supporting foundation, and is characterized in that a limiting steering assembly (2) for limiting and steering the introducing sheath is arranged on the inner side of the protecting tube (1), and a calculus discharging assembly (3) for discharging calculus and broken stones is arranged on the limiting steering assembly (2); The limiting steering assembly (2) comprises a delivery pipe (21) arranged on the inner side of the protection pipe (1), one end of the delivery pipe (21) is connected with a limiting bag (22), a water injection cavity (23) is formed in the inner side of the limiting bag (22), a limiting water injection pipe (24) communicated to the inner side of the water injection cavity (23) is formed in the upper portion of the inner side of the delivery pipe (21), one end of the delivery pipe (21) away from the limiting bag (22) is connected with a guide pipe (25), two sides of the joint of the limiting bag (22) and the delivery pipe (21) are respectively connected with a steering folding pipe (26), and two sides of the inner side of the delivery pipe (21) are respectively provided with a steering water injection pipe (27).
  2. 2. The ureteral introducer sheath with a bendable head-end fixing balloon as claimed in claim 1, wherein the water outlet end of the steering water injection pipe (27) is communicated with the inside of the steering folding pipe (26).
  3. 3. The ureteral introducer sheath with the bendable head end provided with the fixed sacculus as set forth in claim 1, wherein the guide tube (25) is conical, and the maximum diameters of the guide tube (25) and the limiting capsule (22) are smaller than the maximum diameter of the protecting tube (1).
  4. 4. The ureteral introducer sheath with the bendable head end provided with the fixed sacculus device according to claim 1, wherein the calculus discharging assembly (3) comprises a discharging cavity (31) arranged in the middle of the inner sides of the eduction tube (21), the limiting bag (22) and the guide tube (25), a connecting pipe (32) is connected below one end, far away from the guide tube (25), of the eduction tube (21), a negative pressure tank (33) is connected at one end, far away from the eduction tube (21), of the connecting pipe (32), and a control valve (34) is arranged at the joint of the negative pressure tank (33) and the eduction tube (21).
  5. 5. The ureteral introducer sheath with the bendable head end provided with the fixed sacculus device according to claim 4, wherein one ends of the two steering water injection pipes (27) and the limiting water injection pipe (24) far away from the guide pipe (25) penetrate through and extend to the outer side of the delivery pipe (21), and the ends of the steering water injection pipe (27) and the limiting water injection pipe (24) extending out of the outer side of the delivery pipe (21) are connected with the butt joint pipe (4).
  6. 6. The ureteral introducing sheath with the bendable head end provided with the fixed sacculus device according to claim 1, wherein the guiding-out tube (21) is connected with the inner side of the protecting tube (1) in a sliding way and is not attached to the inner wall of the protecting tube (1), and a hydrophilic coating (5) is smeared on the outer side of the protecting tube (1).

Description

Ureter leading-in sheath with bendable head end and fixed sacculus device Technical Field The utility model relates to the technical field of ureter introducing sheaths, in particular to a ureter introducing sheath with a bendable head end and a fixed sacculus device. Background The ureter introducing sheath is one kind of common medical instrument for use in urinary surgery, and is used mainly in establishing the passage for endoscope and other instruments to enter into urinary tract and to complete the ureter soft mirror examination, ureter soft mirror holmium laser lithotripsy, etc. While the existing ureteral introducer sheath has a smooth surface after entering the bladder, it slides inside the ureter, thereby affecting the result of the operation. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the ureteral introducer sheath with the bendable head end and the fixed saccule device, solves the technical problem that the introducer sheath cannot be limited in the urethra, and achieves the aim of improving the success rate of the operation. In order to solve the technical problems, the utility model provides the technical scheme that the ureteral introducing sheath with the bendable head end provided with the fixed sacculus device comprises a protecting tube which is used as a supporting base, wherein the inner side of the protecting tube is provided with a limiting steering assembly for limiting and steering the introducing sheath, and the limiting steering assembly is provided with a calculus discharging assembly for discharging calculus and crushed stones; The limiting steering assembly comprises a guide pipe arranged on the inner side of the protection pipe, one end of the guide pipe is connected with a limiting bag, a water injection cavity is formed in the inner side of the limiting bag, a limiting water injection pipe communicated to the inner side of the water injection cavity is formed in the upper portion of the inner side of the guide pipe, one end of the guide pipe, far away from the limiting bag, is connected with a guide pipe, two sides of the joint of the limiting bag and the guide pipe are respectively connected with a steering folding pipe, and two sides of the inner side of the guide pipe are respectively provided with a steering water injection pipe. Preferably, the water outlet end of the steering water injection pipe is communicated with the inside of the close steering folding pipe. Preferably, the guide tube is conical, and the maximum diameters of the guide tube and the limiting capsule are smaller than the maximum diameter of the protection tube. Preferably, the calculus discharging assembly comprises a discharging cavity arranged in the middle of the inner sides of the delivery pipe, the limiting bag and the guide pipe, a connecting pipe is connected below one end of the delivery pipe away from the guide pipe, a negative pressure tank is connected with one end of the connecting pipe away from the delivery pipe, and a control valve is arranged at the joint of the negative pressure tank and the delivery pipe. Preferably, two steering water injection pipes and one end of the limiting water injection pipe, which is far away from the guide pipe, all penetrate and extend to the outer side of the delivery pipe, and the end parts of the steering water injection pipes and the limiting water injection pipes, which extend out of the outer side of the delivery pipe, are all connected with butt joint pipes. Preferably, the delivery tube is in sliding connection with the inner wall of the protection tube, and the outer side of the protection tube is coated with a hydrophilic coating. By means of the technical scheme, the ureter introducing sheath with the bendable head end and the fixing sacculus device has the following beneficial effects: 1. Due to the arrangement of the limiting steering assembly, the balloon can be limited in the bladder by injecting water into the limiting balloon after the balloon is inserted into the renal pelvis, so that the stability of the introducing sheath in the urethra can be improved, the pressure of the renal pelvis can be effectively reduced by the fixing sheath, and the risk of infection is reduced. 2. The stone discharging assembly is arranged, so that broken stones can be discharged, the broken stones can be directly sucked out through suction generated by the negative pressure tank without being in direct contact with the outside, and the broken stones are discharged. Drawings The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings: FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a schematic