CN213667451U

CN213667451U - Primary and secondary catheter

Info

Publication number: CN213667451U
Application number: CN202022316525.XU
Authority: CN
Inventors: 谷猛; 王�忠; 徐欢; 韦自卫; 陈彦博; 刘冲
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-13
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to a primary and secondary catheter, primary and secondary catheter includes: a first catheter having a first lumen; the second catheter is arranged on the outer side surface of the first catheter and is provided with a second cavity; wherein, the inner diameter of the second cavity is smaller than that of the first cavity.

Description

Primary and secondary catheter

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to primary and secondary catheter.

Background

Surgical drainage is a simple and effective surgical treatment mode and has irreplaceable effects on various infectious and hemorrhagic diseases. The urinary system organ of a human body is characterized by a hollow urine drainage system, once the urine drainage is obstructed under the states of trauma, diseases or after operation, the chance of urinary system infection can be greatly increased, and even the renal function of a patient is affected in severe cases, so the postoperative drainage is very important. The existing catheter can only be used for indwelling and catheterization generally, but a small amount of cleaning solution and urethral secretion are easy to remain in the urethra in the catheterization process, secondary infection in the treatment process is easy to cause, the catheter is particularly easy to occur when being indwelling, the treatment effect of a patient is affected, and a primary and secondary catheter is needed to be provided at the moment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem, provide a primary and secondary catheter, including a first catheter and a second catheter, first catheter and second catheter formula structural connection as an organic whole, first catheter has a first cavity, and the second catheter has a second cavity, through add the second cavity on the basis of first cavity, utilize first cavity and second cavity to fill the medicine in the urethra simultaneously to help promoting the discharge of urethral secretion, in order to realize strengthening the effect of drainage.

In order to achieve the purpose, the utility model adopts the following technical scheme.

Providing a parent-child urinary catheter, the first urinary catheter having a catheter body comprising: a first urinary catheter having a first lumen; a second urinary catheter disposed on an outer surface of the first urinary catheter, the second urinary catheter having a second cavity; wherein the inner diameter of the second cavity is smaller than the inner diameter of the first cavity.

Further, the outer side surface of the second catheter is in contact connection with the outer side surface of the first catheter.

Further, the length extension direction of the second catheter is consistent with the length direction of the first catheter; the first cavity extends along the length direction of the first catheter and penetrates through the end faces of two ends of the first catheter; the second cavity extends along the length direction of the second catheter and penetrates through the end faces of the two ends of the second catheter.

Further, the first urinary catheter has a first end, and at least one branch line is arranged on the outer side surface of the first end, and the branch line is in fluid connection with the first cavity.

Further, the first urinary catheter has a second end with a balloon disposed thereon, the balloon being in fluid connection with the first lumen.

Further, the side wall of the balloon is communicated with the side wall of the first catheter.

Further, the second catheter comprises a straight tube and a bent tube, and the second cavity penetrates through the straight tube and the bent tube.

Furthermore, the straight pipe and the bent pipe are of an integrated structure, and the inner diameter of the second cavity corresponding to the bent portion is larger than that of the second cavity corresponding to the straight pipe.

Further, the second catheter is arranged between the air bag and the first end of the first catheter, and one end, away from the bent pipe, of the straight pipe is not in contact with the air bag in an inflated state.

Further, in the extending direction from the first end to the second end, the inner diameter of the first cavity is gradually reduced in size, and the inner diameter of the second cavity is gradually reduced in size.

The primary and secondary catheter, a first catheter and a second catheter including integral type structural connection, first catheter has a first cavity, the second catheter has a second cavity, utilize first catheter with the second catheter is to the intraurethral perfusion medicine, first catheter is as female pipe, the second catheter is as the auxiliary structure spare of first catheter, through first catheter add on the basis of first cavity the second catheter utilize first cavity and second cavity to fill the medicine in the urethra simultaneously to help promoting the discharge of urethra secretion, in order to realize strengthening the effect of drainage. The utility model discloses simple structure, easy operation is used, and the cost is lower.

Drawings

Fig. 1 is a schematic structural view of the primary-secondary catheter of the present invention.

The reference numerals in the figures are respectively:

1. a first urinary catheter; 2. A second urinary catheter;

10. a first cavity; 11. A first end;

12. a second end; 13. A branch line;

14. an air bag; 20. A second cavity;

21. a straight pipe; 22. Bending the tube.

Detailed Description

The following embodiments of the present invention will be further explained with reference to the drawings, and it should be noted that the following embodiments should not be considered as limiting the embodiments of the present invention.

Referring to fig. 1, in this embodiment there is provided a mother-son urinary catheter comprising: a first catheter 1 and a second catheter 2.

As shown in fig. 1, the first urinary catheter 1 comprises a first cavity 10, the first cavity 10 extends along the length direction of the first urinary catheter 1 and penetrates through the end surfaces of the first urinary catheter 1, the first urinary catheter 1 has a first end 11 and a second end 12, that is, an opening is respectively arranged on the end surfaces of the first end 11 and the second end 12, and the opening is the opening of the first cavity 10.

As shown in fig. 1, at least one branch line 13 is arranged at the first end 11, the branch line 13 is arranged on the outer side surface of the first urinary catheter 1, and the branch line 13 is in fluid connection with the first cavity 10, wherein the branch line 13 is bent towards the side wall facing away from the first urinary catheter 1, and the branch line 13 is used for enhancing drainage.

As shown in fig. 1, a balloon 14 is disposed on the second end 12, the balloon 14 is in fluid connection with the first cavity 10, specifically, a side wall of the balloon 14 is communicated with a side wall of the first urinary catheter 1, and the balloon 14 is integrally connected with the first urinary catheter 1. The material of the air bag 14 is a soft rubber material, the air bag 14 is in an irregular shape in a natural state, and the air bag 14 can be changed into a spherical shape by means of inflation, water injection or the like.

As shown in fig. 1, the second urinary catheter 2 is disposed on the outer side surface of the first urinary catheter 1, the length extending direction of the second urinary catheter 2 is the same as the length direction of the first urinary catheter 1, the outer side surface of the second urinary catheter 2 is in contact connection with the outer side surface of the first urinary catheter 1, and the second urinary catheter 2 is connected with the first urinary catheter 1 in an integrated structure.

Referring to fig. 1, the second urinary catheter 2 comprises a second cavity 20, and the second cavity 20 extends along the length direction of the second urinary catheter 2 and penetrates through the end surfaces of the second urinary catheter 2. In the present application, the inner diameter of the second cavity 20 is smaller than the inner diameter of the first cavity 10.

It should be noted that, the first urinary catheter 1 is regarded as a urinary catheter body, and is equivalent to the first urinary catheter 1 is a female tube, the first urinary catheter 1 is mainly used for discharging the urinary secretion of the human body and is used for filling the medicine into the urethra, the second urinary catheter 2 is used as an auxiliary structural member of the first urinary catheter 1, and the second urinary catheter 2 is used for sharing the drainage work for the first urinary catheter 1.

As shown in figure 1, the second urinary catheter 2 comprises a straight tube 21 and a curved tube 22, the straight tube 21 is in fluid connection with the curved tube 22, and as a preferred embodiment, the straight tube 21 and the curved tube 22 are of an integrated structure. Wherein the bending tube 22 is bent towards a side wall facing away from the first urinary catheter 1. The second cavity 20 penetrates the straight tube 21 and the curved tube 22, and the inner diameter of the second cavity 20 corresponding to the curved portion 22 is larger than the inner diameter of the second cavity 20 corresponding to the straight tube 21.

It should be noted that the length of the second urinary catheter 2 is smaller than the length of the first urinary catheter 1, the second urinary catheter 2 is arranged between the balloon 14 and the first end 11 of the first urinary catheter 1, and the end of the straight tube 21 away from the curved tube 22 is not in contact with the balloon 14 in the inflated state.

And in the present embodiment, the inner diameter of the first cavity 10 is gradually reduced in size in the extending direction from the first end 11 to the second end 12; the inner diameter of the second chamber 20 is gradually reduced in the extending direction from the curved tube 22 toward the straight tube 21. In the present application, the first end 11 may serve as an injection end for drugs or a discharge end for urinary secretions.

In this embodiment, the material of the straight tube 21 and the curved tube 22 of the first urinary catheter 1, the branch line 13, and the second urinary catheter 2 is preferably medical plastic.

The primary and secondary catheter is particularly useful for prostate hyperplasia postoperative, utilizes first catheter 1 with second catheter 2 is to the intraurethral perfusion medicine, wherein first catheter 1 is as female pipe, second catheter 2 is as the auxiliary structure spare of first catheter 1, through addding second catheter 2 is equivalent to first catheter 1 add on the basis of first cavity 10 second catheter 2 second cavity 20, second catheter 2 is used for toward intraurethral laxative to help promoting the discharge of urethral secretion, in order to realize strengthening the effect of drainage.

Therefore, as set forth above, primary and secondary catheter, including a first catheter 1 and a second catheter 2, utilize second catheter 2 with first catheter 1 carries out the integral type and connects, first catheter 1 has a first cavity 10, second catheter 2 has a second cavity 20, second cavity 20 runs through the both ends terminal surface of second catheter 2 first cavity 10 runs through the both ends terminal surface of first catheter 1 utilizes first cavity 10 with second cavity 20 is simultaneously to pouring into the urethra medicine or be used for the discharge of urethra secretion simultaneously, second cavity 20 is used for strengthening the drainage of first cavity 10. The primary and secondary catheter has the advantages of simple structure, convenient operation, low cost and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A primary and secondary urinary catheter, wherein the primary and secondary urinary catheter comprises:

a first urinary catheter having a first lumen;

a second urinary catheter disposed on an outer surface of the first urinary catheter, the second urinary catheter having a second cavity; wherein the content of the first and second substances,

the inner diameter of the second cavity is smaller than that of the first cavity.

2. The child-mother catheter according to claim 1, wherein the outer side surface of said second catheter is in contact with the outer side surface of said first catheter.

3. The child-mother urinary catheter according to claim 2, wherein the second urinary catheter extends lengthwise in a direction that is coincident with the lengthwise direction of the first urinary catheter; the first cavity extends along the length direction of the first catheter and penetrates through the end faces of two ends of the first catheter; the second cavity extends along the length direction of the second catheter and penetrates through the end faces of the two ends of the second catheter.

4. A child-mother catheter according to claim 3, wherein the first catheter has a first end, at least one branch line being provided on an outer surface of the first end, the branch line being in fluid connection with the first chamber.

5. The child-mother urinary catheter according to claim 4, wherein the first urinary catheter has a second end, a balloon being provided at the second end, the balloon being in fluid connection with the first chamber.

6. The child-mother urinary catheter according to claim 5, wherein the side wall of the balloon is continuous with the side wall of the first urinary catheter.

7. The child-mother catheter according to claim 6, wherein said second catheter comprises a straight tube and a curved tube, said second lumen extending through the interior of said straight tube and said curved tube.

8. The child-mother urinary catheter according to claim 7, wherein the straight tube and the curved tube are of an integral structure, and the inner diameter of the second cavity corresponding to the curved tube is larger than the inner diameter of the second cavity corresponding to the straight tube.

9. The child-mother urinary catheter according to claim 8, wherein the second urinary catheter is arranged between the balloon and the first end of the first urinary catheter, and wherein the end of the straight tube facing away from the curved tube is not in contact with the balloon in the inflated state.

10. The child-mother urinary catheter according to claim 9, wherein the first cavity has a gradually decreasing inner diameter dimension and the second cavity has a gradually decreasing inner diameter dimension in the direction extending from the first end towards the second end.