CN114917461A

CN114917461A - Disposable ureteral catheter

Info

Publication number: CN114917461A
Application number: CN202210528765.7A
Authority: CN
Inventors: 吴凌庚
Original assignee: Suzhou New District Huasheng Medical Devices Co ltd
Current assignee: Suzhou New District Huasheng Medical Devices Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-19

Abstract

The invention discloses a disposable ureteral catheter, which comprises: the catheter comprises a catheter body, wherein the end part of the catheter body is provided with a tip part, the catheter body is provided with a mounting groove, an air bag structure is arranged in the mounting groove, an air inlet pipe is arranged on the air bag structure, the end part of the air inlet pipe is fixedly connected with a non-return air inlet structure, and an air inlet nozzle is arranged on the upper side of the non-return air inlet structure; the air inlet structure comprises a check block, a sealing plate is fixedly arranged inside the check block of the check air inlet structure, and a sealing ball is arranged on the surface of the lower side of the sealing plate. The ureteral catheter is used, the catheter body is arranged in the ureteral, the air inlet pipe is inflated through the air inlet nozzle and the non-return air inlet structure at the moment, the air bag structure is expanded and is in contact with the inner wall of the ureter, the catheter body is pulled out from the interior of the ureter at the moment, particle sediments attached to the inner wall of the ureter can be separated, and pain and bitterness of a patient during operation are reduced.

Description

Disposable ureteral catheter

Technical Field

The invention relates to the field of medical instruments, in particular to a disposable ureteral catheter.

Background

The ureteral catheter is a disposable medical product used for expanding and dredging the ureter and matching with ureteroscopy to carry out symptomatic treatment;

for patients with serious ureter blockage, in order to gradually expand and dredge the ureter, the disposable ureter catheter with the gradually increased outer diameter of the catheter body must be replaced for multiple times so as to gradually expand the blocked ureter and gradually remove sediments in the blocked ureter; the disposable ureteral catheter is replaced for many times in the trauma examination, on one hand, great pain is caused to a patient, and the risk of urinary tract infection of the patient is multiplied.

Disclosure of Invention

The object of the present invention is to provide a single-use ureteral catheter that solves the drawbacks mentioned in the background above.

To achieve the above object, there is provided a disposable ureteral catheter comprising:

the catheter comprises a catheter body, wherein the end part of the catheter body is provided with a tip part, the catheter body is provided with a mounting groove, an air bag structure is arranged in the mounting groove, the air bag structure is provided with an air inlet pipe, the end part of the air inlet pipe is fixedly connected with a non-return air inlet structure, and the upper side of the non-return air inlet structure is provided with an air inlet nozzle;

the non-return air inlet structure, the inside fixed closing plate that is provided with of non-return air inlet structure's non return piece, and the downside of closing plate is provided with the ball sealer on the surface, and the installation cavity has been seted up to ball sealer inside simultaneously to the installation cavity is inside to be fixed and is provided with reset spring, reset spring's bottom and fixed plate fixed connection, and the both ends of fixed plate are fixed respectively to be set up on the lateral wall of non return piece.

Preferably, the left side surface of pipe body has evenly seted up multiunit small opening, and the section of small opening sets up for the slope, and the inclination of small opening simultaneously is 45.

Preferably, the whole of gasbag structure is the annular setting, and the gasbag structure passes through the intake pipe and sets up with non return air inlet structure intercommunication, and the intake pipe is pegged graft in the inside of spacing passageway simultaneously, and spacing passageway is seted up in the inner wall of pipe body.

Preferably, the non-return air inlet structure comprises a non-return block, a sealing plate, a sealing ball, a return spring, a fixing plate, an opening, a limiting groove and an installation cavity.

Preferably, the inside trompil of having seted up of non return piece, and the spacing groove has been seted up to the bottom of non return piece, spacing groove and ball sealer size looks adaptation, and the ball sealer is installed in the inside of spacing groove.

Preferably, the sealing ball is elastically connected with the fixing plate through a return spring, the sealing ball is arranged in the limiting groove, and the non-return air inlet structure is used for processing a communicated state; the sealing ball is separated from the limiting groove, and the non-return air inlet structure is used for processing a closed state.

Compared with the prior art, the invention has the beneficial effects that: the catheter body is arranged in the ureter, the air inlet pipe is inflated through the air inlet nozzle and the non-return air inlet structure at the moment, the air bag structure is expanded and is in contact with the inner wall of the ureter, the catheter body is drawn out from the interior of the ureter at the moment, particle sediments attached to the inner wall of the ureter can be separated, and pain and bitterness of a patient during operation are reduced.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1 according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line B-B in FIG. 1;

FIG. 4 is a schematic view of the air intake and check structure of the present invention;

FIG. 5 is a schematic view of the check intake structure of the present invention in a communicating state;

fig. 6 is an external view of the structure of fig. 1 according to the present invention.

Reference numbers in the figures: 1. a tip portion; 2. a catheter body; 3. a leak hole; 4. an air bag structure; 5. an air inlet pipe; 6. a limiting channel; 7. a non-return air intake structure; 71. a check block; 72. a sealing plate; 73. a sealing ball; 74. a return spring; 75. a fixing plate; 76. opening a hole; 77. a limiting groove; 78. a mounting cavity; 8. an air inlet nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a single use ureteral catheter comprising: a conduit body 2 and a non-return air intake structure 7;

the tip part 1 is installed at the end part of the catheter body 2, the catheter body 2 is provided with an installation groove, an air bag structure 4 is arranged in the installation groove, an air inlet pipe 5 is arranged on the air bag structure 4, the end part of the air inlet pipe 5 is fixedly connected with a non-return air inlet structure 7, and an air inlet nozzle 8 is installed on the upper side of the non-return air inlet structure 7;

the sealing plate 72 is fixedly arranged inside the check block 71 of the check air inlet structure 7, the sealing ball 73 is arranged on the surface of the lower side of the sealing plate 72, the mounting cavity 78 is formed inside the sealing ball 73, the return spring 74 is fixedly arranged inside the mounting cavity 78, the bottom of the return spring 74 is fixedly connected with the fixing plate 75, and two ends of the fixing plate 75 are respectively fixedly arranged on the side wall of the check block 71.

The catheter body 2 is placed in the ureter, the air inlet pipe 5 is inflated through the air inlet nozzle 8 and the non-return air inlet structure 7 at the moment, the air bag structure 4 is expanded and is in contact with the inner wall of the ureter, the catheter body 2 is drawn out from the interior of the ureter at the moment, particle sediments attached to the inner wall of the ureter can be separated, and pain and bitterness of a patient during operation are reduced.

As a preferred embodiment, a plurality of sets of weep holes 3 are uniformly formed on the left side surface of the catheter body 2, the cross section of each weep hole 3 is inclined, and the inclination angle of each weep hole 3 is 45 °.

As shown in fig. 1: when the catheter body 2 is arranged in the ureter, liquid in the ureter can enter the catheter body 2 through the leak hole 3, and the end part of the catheter body 2 is connected with urine guide, so that the urination work of a patient can be completed.

As a preferred embodiment, the whole of the air bag structure 4 is arranged in an annular shape, the air bag structure 4 is communicated with the non-return air inlet structure 7 through the air inlet pipe 5, meanwhile, the air inlet pipe 5 is inserted in the limiting channel 6, and the limiting channel 6 is arranged in the inner wall of the catheter body 2.

When air bag structure 4 is in the shrivelled state, hide in the groove of seting up on 2 lateral walls of pipe body for when pipe body 2 got into and inserts the ureter intraduct, air bag structure 4 can not contact with the urethra inner wall, reduces the painful sense of patient.

In a preferred embodiment, the check inlet structure 7 includes a check block 71, a sealing plate 72, a sealing ball 73, a return spring 74, a fixing plate 75, an opening 76, a limiting groove 77 and a mounting cavity 78.

As shown in fig. 1: the non-return air inlet structure 7 can prevent the air bag structure 4 in an inflated state from air leakage, and the stability of the air bag structure 4 during working hours is ensured.

In a preferred embodiment, the check block 71 has an opening 76 therein, and the bottom of the check block 71 has a limiting groove 77, the size of the limiting groove 77 is matched with that of the sealing ball 73, and the sealing ball 73 is mounted inside the limiting groove 77.

As shown in fig. 4: the working mode of the check air inlet structure 7 is as follows: the inflating device is connected to the air inlet nozzle 8 to perform inflation, air enters the check block 71, the sealing ball 73 is separated from the limiting groove 77, the air enters the air bag structure 4, the air bag structure 4 is stretched, the air bag structure 4 is in contact with the inner wall of the ureter, and impurities on the inner wall of the ureter are scraped out conveniently.

As a preferred embodiment, the sealing ball 73 is elastically connected with the fixing plate 75 through the return spring 74, and the sealing ball 73 is disposed inside the limiting groove 77, and the non-return air inlet structure 7 handles the communication state; the sealing ball 73 disengages at the stop groove 77 and the non-return air intake structure 7 handles the closed state.

When the air bag structure 4 scrapes out impurities on the inner wall of the ureter, the position of the catheter body 2 in the human body can be displayed on the display screen through the ultrasonic probe, the expansion degree of the air bag structure 4 can also be observed, and the phenomenon that the ureter is damaged due to the fact that the air bag structure 4 is expanded too much can be avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A single use ureteral catheter, comprising: the catheter comprises a catheter body (2), wherein a tip part (1) is installed at the end part of the catheter body (2), an installation groove is formed in the catheter body (2), an air bag structure (4) is arranged in the installation groove, an air inlet pipe (5) is arranged on the air bag structure (4), the end part of the air inlet pipe (5) is fixedly connected with a non-return air inlet structure (7), and an air inlet nozzle (8) is installed on the upper side of the non-return air inlet structure (7); non return inlet structure (7), non return piece (71) inside fixed closing plate (72) that is provided with of non return inlet structure (7), and the downside of closing plate (72) is provided with sealing ball (73) on the surface, and installation cavity (78) have been seted up to sealing ball (73) inside simultaneously to installation cavity (78) inside fixed reset spring (74) that is provided with, the bottom and fixed plate (75) fixed connection of reset spring (74), and the both ends of fixed plate (75) are fixed respectively and are set up on the lateral wall of non return piece (71).

2. A single use ureteral catheter, according to claim 1, wherein: the left side surface of pipe body (2) has evenly seted up multiunit small opening (3), and the section of small opening (3) sets up for the slope, and the inclination of small opening (3) simultaneously is 45.

3. A single use ureteral catheter, according to claim 1, wherein: the whole of gasbag structure (4) sets up for the annular, and gasbag structure (4) set up through intake pipe (5) and non return air inlet structure (7) intercommunication, and intake pipe (5) are pegged graft in the inside of spacing passageway (6) simultaneously, and spacing passageway (6) are seted up in the inner wall of pipe body (2).

4. A single-use ureteral catheter according to claim 1, wherein: the non-return air inlet structure (7) comprises a non-return block (71), a sealing plate (72), a sealing ball (73), a return spring (74), a fixing plate (75), an opening (76), a limiting groove (77) and an installation cavity (78).

5. A single use ureteral catheter, according to claim 4, wherein: the check block (71) is internally provided with an opening (76), the bottom of the check block (71) is provided with a limiting groove (77), the limiting groove (77) is matched with the sealing ball (73) in size, and the sealing ball (73) is arranged in the limiting groove (77).

6. A single-use ureteral catheter according to claim 4, wherein: the sealing ball (73) is elastically connected with the fixing plate (75) through a return spring (74), the sealing ball (73) is arranged in the limiting groove (77), and the non-return air inlet structure (7) is used for processing a communication state; the sealing ball (73) is separated from the limiting groove (77), and the non-return air inlet structure (7) is in a closed state.