CN210963509U

CN210963509U - Sacculus ureter pipe

Info

Publication number: CN210963509U
Application number: CN201921304696.1U
Authority: CN
Inventors: 陈永良; 李王坚; 钱卫良
Original assignee: Shaoxing central hospital
Current assignee: Shaoxing central hospital
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-07-10
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to the technical field of medical equipment, and a sacculus ureter pipe is disclosed. The balloon ureteral catheter of the utility model comprises a catheter, wherein the outlet end of the catheter is provided with a balloon, three cavities, namely a first cavity, a second cavity and a third cavity, are arranged inside the catheter, the lower outlet of the first cavity is sealed, a first side hole is arranged on the side wall, the first side hole is covered by the balloon, the lower outlet of the second cavity is sealed, a second side hole is arranged on the side wall, the second side hole is closer to the outlet of the catheter than the balloon, the utility model discloses a medical instrument, including first cavity, second cavity, third cavity, first guide tube, second guide tube, connector, first guide tube, second guide tube, third cavity, the entrance of first cavity, second cavity and third cavity link up respectively, and the free end of first guide tube, second guide tube and third guide tube all is equipped with the connector, and connector fixedly connected with infusion two-way on the first guide tube, the junction of first guide tube, second guide tube and third guide tube and pipe is equipped with fixed cover.

Description

Sacculus ureter pipe

Technical Field

The utility model relates to the technical field of medical equipment, specifically a sacculus ureter pipe.

Background

Percutaneous nephrolithotripsy is an operation in which a channel from skin to kidney is established at the waist, a nephroscope is inserted into the kidney through the channel, and kidney stones and ureteral upper stones are broken by using lithotripsy tools such as laser, ultrasound and the like and then taken out. Before the project, the operation still belongs to high-risk and high-difficulty operation, and serious complications such as postoperative hemorrhage, pleural injury, postoperative pneumothorax, hemothorax and the like are frequently encountered, which mainly results from unsatisfactory puncture effect.

The undesirable puncturing effect is often caused by the following conditions:

1. due to anatomical differences, the twelve ribs of some patients are long, the affected kidney is high in horizontal position, or stones are located on the upper and middle calyces, the rib shielding causes difficulty in establishing a puncture channel, the puncture angle is limited, and in few cases, the intercostal nerves and blood vessels can be injured by inserting needles along the lower edges of the ribs.

2. During operation, the affected kidney floats up and down along with respiratory movement, the puncture line is not fixed, and the kidney parenchyma can be scratched when the needle is inserted slowly. However, the success rate of blind and quick puncture is not high, and many attempts are needed, for example, an anesthesiologist cannot maintain the blood for a long time with apnea, hypoxemia and carbon dioxide retention affect the internal environment stability.

3. The pressure reduction loss of the common ureter catheter along the gap between the catheter and the ureter wall can be caused by water injection, the artificial hydronephrosis effect is not good enough, and the puncture success rate is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that above-mentioned prior art exists, a sacculus ureter pipe.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a sacculus ureteral catheter comprises a catheter, wherein the catheter comprises an inlet at the upper end and an outlet at the lower end, a sacculus is arranged at the outlet end of the catheter, a first cavity, a second cavity and a third cavity are arranged in the catheter, the outlet at the lower end of the first cavity is sealed and a first side hole is formed in the side wall, the first side hole is coated by the sacculus, the outlet at the lower end of the second cavity is sealed and a second side hole is formed in the side wall, the second side hole is closer to the outlet of the catheter than the sacculus and is communicated with the outside, the two ends of the third cavity are communicated, a first guide pipe, a second guide pipe and a third guide pipe are respectively connected at the inlets of the first cavity, the second cavity and the third cavity, a connector is respectively arranged at the free ends of the first guide pipe, the second guide pipe and the third guide pipe, and a two infusion ports are fixedly connected with the connector on the first guide pipe, and fixing sleeves are arranged at the joints of the first guide pipe, the second guide pipe, the third guide pipe and the guide pipe.

Preferably, the two ends of the saccule are provided with fixing rings.

Preferably, the outlet of the catheter is tapered to facilitate insertion of the catheter into the renal pelvis of the patient.

Preferably, the outer wall of the conduit is provided with scales.

Preferably, the catheter is soft and bendable, and a hydrophilic lubricating coating is attached to the surface of the catheter.

Preferably, the catheter has a length of 50-55cm, and too short or too long affects the operation according to the length from the actual ureteral outlet to the kidney.

Preferably, the volume of the balloon is 5-10ml, and different balloon sizes are selected according to different patients.

Preferably, the distance between the lower end of the balloon and the outlet of the catheter is 5-6 mm.

Preferably, the second side hole is located at a distance of 2-3mm from the outlet of the conduit.

The utility model discloses a use method:

step 1: a guide wire is penetrated into the third cavity through a third guide tube, and the catheter is placed into the renal pelvis of the patient through the ureter through a cystoscope at the lithotomy position;

step 2: injecting normal saline into the saccule by using the needle cylinder through the first guide tube, filling the saccule to 5-10ml, closing the two-way infusion tube, and keeping the catheter;

and step 3: under prone position X-ray or B-ultrasonic positioning, injecting contrast medium or normal saline into the kidney by using a needle cylinder through a second guide tube, properly pulling an indwelling catheter according to needs, pulling the catheter while searching for a proper puncture point, and fixing the position of the kidney after the puncture point is determined so as to facilitate puncture;

and 4, step 4: the device is used as a plugging catheter in the stone breaking process to prevent stones from moving;

and 5: and (4) opening the infusion bi-pass after the operation is finished, pumping out the normal saline in the saccule, contracting the saccule to restore the saccule to the initial state, and pulling out the catheter.

The utility model has the advantages that:

1. before puncture, the utility model can move the kidney position downwards and fix the kidney position by pulling the filled saccule after the pyeloid position is filled with the saccule, thereby being greatly beneficial to the selection of a proper puncture point and the improvement of puncture success rate and effectively reducing the risk of postoperative complications in the operation; and simultaneously, the utility model discloses can regard as the shutoff pipe to use behind the full sacculus, with the ureter shutoff, prevent the contrast medium or the normal saline decompression loss of injection, ensure artifical hydronephrosis effect, improve the puncture success rate.

2. In the process of crushing stone, the full balloon of the utility model is positioned at the joint of the ureter and the renal pelvis, and can be used as a plugging catheter to prevent postoperative renal colic or ureteral obstruction caused by the fact that the stone is shifted into the ureter in the process of crushing stone by renal stone; in holmium laser lithotripsy of ureteral calculus at the upper segment, a balloon is arranged above calculus, and the calculus can be prevented from being displaced into a renal pelvis after the balloon is filled.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional view of the outlet of the catheter of the present invention.

In the figure: 1. a conduit; 2. an inlet; 3. an outlet; 4. a balloon; 5. a first cavity; 6. a second cavity; 7. a third cavity; 8. a first side hole; 9. a second side hole; 10. a first guide tube; 11. a second guide tube; 12. a third guide tube; 13. a connector; 14. a two-way infusion device; 15. fixing a sleeve; 16. and (4) fixing the ring.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the utility model provides a sacculus ureteral catheter, as shown in fig. 1-2, including pipe 1, pipe 1 includes entry 2 and the export 3 of lower extreme of upper end, the export 3 end of pipe 1 is equipped with sacculus 4, the inside of pipe 1 is equipped with three cavity, is first cavity 5 respectively, second cavity 6 and third cavity 7, the first lateral opening 8 has been seted up on the lateral wall to the lower extreme export 3 of first cavity 5 deadly, first lateral opening 8 communicates with each other with sacculus 4 including being wrapped by sacculus 4, the second lateral opening 9 has been seted up on the lateral wall to the lower extreme export 3 of second cavity 6 deadly, second lateral opening 9 is closer to the export 3 of pipe 1 and communicates with the external world than sacculus 4, third cavity 7 two link up, the entry 2 punishment of first cavity 5, second cavity 6 and third cavity 7 do not is connected with first stand pipe 10, Second stand pipe 11 and third stand pipe 12, the free end of first stand pipe 10, second stand pipe 11 and third stand pipe 12 all is equipped with connector 13, connector 13 fixedly connected with infusion bi-pass 14 on the first stand pipe 10, the junction of first stand pipe 10, second stand pipe 11 and third stand pipe 12 and pipe 1 is equipped with fixed cover 15. First cavity 5 intercommunication sacculus 4, for the normal saline passageway, the syringe is connected through infusion two-way 14 and is injected normal saline and fill sacculus 4, second cavity 6 is the injection passageway of B ultrasonic or X line location auxiliary agent (normal saline or contrast medium), third cavity 7 is the interlude passageway of seal wire, third cavity 7 is main entrance, locate in the middle of, the infusion two-way 14 of the connection on the first stand pipe 10 also plays the effect of distinguishing the different functions of three cavities, prevent to mistake the injection passageway of B ultrasonic or X line location auxiliary agent and normal saline. The second side hole 9 is closer to the outlet 3 end of the catheter 1 than the balloon 4 for normal injection of the B-ultrasonic or X-ray positioning aid, and the inflated balloon 4 plays a role in blocking after injection, so that the loss of the B-ultrasonic or X-ray positioning aid is reduced, and the artificial hydronephrosis effect is ensured.

Two ends of the sacculus 4 are provided with fixing rings 16 to ensure the air tightness of the sacculus.

The outlet 3 of the catheter 1 is tapered to facilitate insertion of the catheter 1 into the renal pelvis of a patient.

Scales are arranged on the outer wall of the catheter 1.

The catheter 1 is soft and bendable, and the surface of the catheter is attached with a hydrophilic lubricating coating, so that the catheter 1 can be inserted conveniently.

The length of the catheter 1 is 50-55cm, and the operation is influenced by too short or too long according to the length from the outlet of the ureter to the kidney.

The volume of the saccule 4 is 5-10ml, and different sizes of the saccule 4 are selected according to different patients.

The distance between the lower end of the saccule 4 and the outlet 3 of the catheter 1 is 5-6 mm.

The second side hole 9 is at a distance of 2-3mm from the outlet 3 of the conduit 1.

The utility model discloses a use method: when the percutaneous nephrolithotomy is performed, a guide wire is penetrated into the third cavity, and the catheter is placed into the renal pelvis of a patient through the ureter by the cystoscope at the lithotomy position; injecting normal saline into the first cavity by using the needle cylinder, filling the saccule to 5-10ml, closing the two-way infusion, and keeping the catheter; under prone position X-ray or B-ultrasonic positioning, injecting contrast agent or normal saline by using a syringe through the second cavity, properly pulling an indwelling catheter according to needs, pulling the catheter while searching for a proper puncture point, and fixing the position of the kidney after the puncture point is determined so as to facilitate puncture; the blocking catheter is used as a blocking catheter in the stone breaking process, so that stones are prevented from moving, postoperative renal colic or ureteral obstruction caused by the fact that the kidney stones move into the ureter is prevented, and the stones of the upper ureter are prevented from moving into a renal pelvis; and (4) opening the infusion bi-pass after the operation is finished, pumping out the normal saline in the saccule to restore the saccule to the initial state, and pulling out the catheter. Generally, use the utility model discloses promoted the puncture success rate greatly, the rubble in-process can prevent the calculus moreover and shift.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A balloon ureteral catheter, comprising a catheter, characterized in that: the catheter comprises an inlet at the upper end and an outlet at the lower end, a balloon is arranged at the outlet end of the catheter, three cavities are arranged inside the catheter, namely a first cavity, a second cavity and a third cavity, the outlet at the lower end of the first cavity is sealed, a first side hole is formed in the side wall, the first side hole is coated by the balloon, the outlet at the lower end of the second cavity is sealed, a second side hole is formed in the side wall, the second side hole is closer to the outlet of the catheter than the balloon and is communicated with the outside, two ends of the third cavity are communicated, the inlets of the first cavity, the second cavity and the third cavity are respectively connected with a first guide pipe, a second guide pipe and a third guide pipe, the free ends of the first guide pipe, the second guide pipe and the third guide pipe are respectively provided with a connecting head fixedly connected with an infusion bi-pass, and fixing sleeves are arranged at the joints of the first guide pipe, the second guide pipe, the third guide pipe and the guide pipe.

2. The balloon ureteral catheter according to claim 1, wherein: two ends of the saccule are provided with fixing rings.

3. The balloon ureteral catheter according to claim 2, wherein: the outlet of the conduit is tapered.

4. The balloon ureteral catheter according to claim 3, wherein: scales are arranged on the outer wall of the conduit.

5. The balloon ureteral catheter according to claim 1, wherein: the length of the conduit is 50-55 cm.

6. The balloon ureteral catheter according to claim 5, wherein: the volume of the balloon is 5-10 ml.

7. The balloon ureteral catheter according to claim 6, wherein: the distance between the lower end of the saccule and the outlet of the catheter is 5-6 mm.

8. The balloon ureteral catheter according to claim 7, wherein: the distance between the second side hole and the outlet of the conduit is 2-3 mm.