CN213131499U

CN213131499U - Ureter internal drainage device

Info

Publication number: CN213131499U
Application number: CN202020349581.0U
Authority: CN
Inventors: 宋玲玲; 张�诚
Original assignee: Affiliated Zhongshan Hospital of Dalian University
Current assignee: Affiliated Zhongshan Hospital of Dalian University
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-05-07
Anticipated expiration: 2030-03-19

Abstract

A urinary catheter drainage device belongs to the technical field of medical appliance manufacturing. The drainage tube comprises an outer sleeve, a drainage tube, a propeller and an inner sleeve, wherein the outer sleeve, the propeller and the inner sleeve are all single-channel tubes; the drainage tube comprises a head part, a body part and a tail part, wherein the head part and the tail part are spherical; the drainage tube and the propeller are sleeved on the inner sleeve, and the outer sleeve is sleeved on the drainage tube and the propeller. The utility model has the advantages of displacement prevention, small stimulation to the renal pelvis and the bladder, and no damage.

Description

Ureter internal drainage device

Technical Field

The utility model belongs to the technical field of medical instrument makes, a drainage device in ureter is related to.

Background

A ureteral stent is a catheter to be left in a ureter for drainage of urine, prevention and treatment of ureteral stenosis, and the like, and is generally used for operations such as kidney stone, ureteral stone, kidney transplantation, hydronephrosis, ureteral stenosis, and the like. Clinical practice proves that the double J tube has double functions of internal support and drainage, can effectively relieve upper urinary tract obstruction and protect renal function. Ureteral stents are widely used in the treatment of diseases of the urinary system.

The end of the double J tube head is placed in the renal pelvis, the tail end is in the bladder, loop rings are formed at the two ends, and the two ends of the bracket are pressed against the inner wall of the renal pelvis under normal pressure to cause the pyelonephritis. In the process of taking out the stent, the head end loop is pulled to be arc-shaped, and the mucous membrane of the bladder and the ureter is easily scratched in the process of taking out the stent.

Disclosure of Invention

The utility model aims at providing a ureter internal drainage device which can prevent displacement, has little stimulation to renal pelvis and bladder and no damage.

The utility model comprises an outer sleeve 1, a drainage tube 2, a propeller 3 and an inner sleeve 4, wherein the outer sleeve 1, the propeller 3 and the inner sleeve 4 are single-channel tubes; the drainage tube 2 comprises a head part 5, a body part 6 and a tail part 7, wherein the head part 5 and the tail part 7 are spherical; the drainage tube 2 and the propeller 3 are sleeved on the inner sleeve 4, the inner sleeve 4 is fixed with the tail of the propeller 3, and the outer sleeve 1 is sleeved outside the drainage tube 2 and the propeller 3.

The spherical head part 5 and the spherical tail part 7 on the drainage tube 2 are composed of an arc-shaped tube wall, the outer side of the arc-shaped tube wall is a point-shaped bulge, and the diameter of a saccule of the head part 5 is 1-1.5 cm;

the length of the outer sleeve 1 is 80cm, the outer diameter is 14-24Fr, and the inner diameter is 13-23 Fr;

the type of the outer sleeve 1 is that the outer diameter is 14, 16, 18, 20, 22 and 24Fr, and the inner diameter is 13, 15, 17, 19, 21 and 23 Fr;

the length of the drainage tube 2 is 20-40cm, the outer diameter is 12-22Fr, and the inner diameter is 10-20 Fr;

the model of the drainage tube 2 is that the outer diameter is 12, 14, 16, 18, 20 and 22Fr, and the corresponding inner diameter is 10, 12, 14, 16, 18 and 20 Fr;

the length of the propeller 3 is 100-120cm, the outer diameter is 12-22Fr, and the inner diameter is 10-20 Fr;

the propeller 3 is of the type with outer diameters 12, 14, 16, 18, 20 and 22Fr corresponding to inner diameters 10, 12, 14, 16, 18 and 20 Fr;

the length of the inner sleeve 4 is 120-160cm, the outer diameter is 9-19Fr, and the inner diameter is 7-17 Fr;

the inner jacket tube 4 has the outer diameters 9, 11, 13, 15, 17, 19Fr, which correspond to the inner diameters 7, 9, 11, 13, 15, 17 Fr.

The utility model has the advantages that:

1. in the device, the arc-shaped pipe walls at two ends of the drainage pipe are spherical, and the arc-shaped pipe walls are provided with point-shaped bulges, so that the device has the displacement prevention function;

2. the tube wall saccules at the two ends of the device have small stimulation to the renal pelvis and the bladder;

3. the device has no damage to renal pelvis wall and ureter wall during the taking-out process.

Drawings

FIG. 1 is a schematic view of the structure of a drainage tube of the present invention,

figure 2 is a schematic view of the structure of the outer sleeve of the present invention,

figure 3 is a schematic diagram of the structure of the propeller of the present invention,

figure 4 is a structural schematic diagram of the inner sleeve of the utility model,

figure 5 is a schematic assembled structure of the present invention,

figure 6 is a schematic view of the device of the present invention in a position where it exits the outer sleeve,

figure 7 is a schematic view of the device after it has been fully released,

wherein, 1, the outer sleeve, 2, the drainage tube, 3, the propeller, 4, the inner sleeve, 5, the head, 6, the body, 7, the tail, 8, the guide wire.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model comprises an outer sleeve 1, a drainage tube 2, a propeller 3 and an inner sleeve 4, wherein the length of the outer sleeve 1 is 80cm, the outer diameter is 24Fr, and the inner diameter is 23 Fr; the length of the drainage tube 2 is 40cm, the outer diameter is 22Fr, and the inner diameter is 20 Fr; the length of the propeller 3 is 120cm, the outer diameter is 22Fr, and the inner diameter is 20 Fr; the inner jacket tube 4 has a length of 160cm, an outer diameter of 19Fr and an inner diameter of 17 Fr. Wherein, the outer sleeve 1, the propeller 3 and the inner sleeve 4 are single-channel tubes; the drainage tube 2 comprises a head part 5, a body part 6 and a tail part 7, the head part 5 and the tail part 7 which are spherical on the drainage tube 2 are composed of arc-shaped tube walls, the outer sides of the arc-shaped tube walls are protruded in a point shape, and the diameter of a saccule of the head part 5 is 1.5 cm; the drainage tube 2 and the propeller 3 are sleeved on the inner sleeve 4, the inner sleeve 4 and the propeller 3 are fixed through the tail part in a spiral mode, and the outer sleeve 1 is sleeved outside the drainage tube 2 and the propeller 3.

During clinical operation, earlier put into seal wire 8 to the renal pelvis through ureter opening in the bladder with seal wire 8 in, will under the guide of seal wire 8 the utility model discloses in the device was put into the renal pelvis, fixed propeller 3, outer tube 1 and seal wire 8, withdraw from outer tube 1 to outer tube 1 head end and lie in propeller 3, drainage tube 2 front end and end are spherical or mushroom head form, fixed propeller 3 and outer tube 1, withdraw from interior sleeve pipe 4 and seal wire 8, drainage tube 2 separates with propeller 3, releases propeller 3 and outer tube 1 at last.

Claims

1. The ureteral drainage device is characterized by comprising an outer sleeve (1), a drainage tube (2), a propeller (3) and an inner sleeve (4), wherein the outer sleeve (1), the propeller (3) and the inner sleeve (4) are single-channel tubes; the drainage tube (2) comprises a head part (5), a body part (6) and a tail part (7), wherein the head part (5) and the tail part (7) are spherical; the drainage tube (2) and the propeller (3) are sleeved on the inner sleeve (4), the inner sleeve (4) is fixed with the tail of the propeller (3), and the outer sleeve (1) is sleeved outside the drainage tube (2) and the propeller (3).

2. The ureteral drainage device according to claim 1, wherein the head (5) and the tail (7) of the drainage tube (2) are spherical and are composed of arc-shaped tube walls, the outer sides of the arc-shaped tube walls are protruded in a point shape, and the diameter of the balloon of the head (5) is 1-1.5 cm.

3. A ureteral drainage device according to claim 1, characterized in that the outer sleeve (1) has a length of 80cm, an outer diameter of 14-24Fr and an inner diameter of 13-23 Fr.

4. The ureteral drainage device according to claim 1, wherein the length of the drainage tube (2) is 20-40cm, the outer diameter is 12-22Fr, and the inner diameter is 10-20 Fr.

5. The ureteral drainage device according to claim 1, wherein the pusher (3) has a length of 100-120cm, an outer diameter of 12-22Fr and an inner diameter of 10-20 Fr.

6. The ureteral drainage device according to claim 1, wherein the inner sleeve (4) has a length of 120-160cm, an outer diameter of 9-19Fr and an inner diameter of 7-17 Fr.