CN203620038U

CN203620038U - Ureteral catheter

Info

Publication number: CN203620038U
Application number: CN201320720998.3U
Authority: CN
Inventors: 刘波; 潘铁军; 周道裕; 刘伟; 邹倩; 钱卫红
Original assignee: Wuhan General Hospital of Guangzhou Military of PLA
Current assignee: Wuhan General Hospital of Guangzhou Military of PLA
Priority date: 2013-11-15
Filing date: 2013-11-15
Publication date: 2014-06-04
Anticipated expiration: 2023-11-15

Abstract

The utility model relates to the field of medical devices, in particular to a urethral catheter provided with active valve bodies. The urethral catheter comprises a catheter body and a catheter head, wherein at least one active valve body is divided on the catheter head, and the active valve bodies are in a close-fitting state mutually and close the catheter body. According to the utility model, at least one active valve body is divided on the catheter head of the urethral catheter, provided that a certain force is exerted to the active valve body continuously when a guide wire penetrates the catheter body and reaches the catheter head, the active valve body is opened, the guide wire can penetrate through the catheter head to reach a desired location, then the urethral catheter can be conveniently pulled out from a body, and a double-J urethral catheter is implanted to the desired location in the body along the guide wire. The urethral catheter disclosed by the utility model has simple improved methods and low cost and can be popularized in the conventional urethral catheter.

Description

A kind of ureteral catheter

Technical field

This utility model relates to medical instruments field, relates in particular to a kind of ureteral catheter that is provided with movable flap body.

Background technology

At present, carrying out renal calculus, ureteral calculus, hydronephrosis, renal transplantation, the upper urinary tract operation such as kidney and ureter benign tumor and lithotrite rubble, in the therapeutic processes such as the expansion of stricture of ureter, generally can implant double J pipe to bladder and ureter, make ureter can play drainage of urine, prevent the important function that stricture of ureter and adhesion are stopped up, and the method for implanting double J pipe has multiple, for example first ureteral catheter is introduced to ureter, recycling ureteroscope enters and in the side openings of ureteral catheter, double J pipe is implanted along ureteral catheter, but in operation process, tend to run into " ureter problem section ", it is the partial ureter of narrow distortion in ureter, running into this kind of situation makes the ureteroscope just cannot be by going, that is to say, with it these special cases, due to special circumstances such as the infection swelling of urethra, ureteroscope can not enter and just " road " as again can't find, therefore just cannot place double J pipe, operation is caused to great difficulty.

If can be extracting before ureteral catheter, place a seal wire by ureteral catheter, exit ureteral catheter along seal wire like this, insert double J pipe along seal wire again, problem has just solved, but existing ureteral catheter head end is the blunt closure of circle, opening is at side, make seal wire cannot pass conductor housing, directly affect the implantation of double J pipe below, surgical work is brought inconvenience.

Summary of the invention

In view of this, this utility model aims to provide a kind of conductor housing and is provided with the ureteral catheter of movable flap body, and by opening of movable flap body, seal wire can be through the conductor housing of ureteral catheter, to assist double J pipe to implant.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of ureteral catheter, comprise catheter body and conductor housing, described conductor housing is cut apart at least one movable flap body, the mutual close-fitting of described movable flap body closure catheter body, when seal wire penetrates catheter body and arrives conductor housing, apply certain power as long as continue to movable flap body, movable flap body just can be opened, seal wire can arrive precalculated position through conductor housing, now ureteral catheter just can be extracted in body easily, after just can be along seal wire the double J pipe preposition that implants.

Preferably, mutual close-fitting between movable flap body and conductor housing in the time that movable flap body is one, or in the time that interactive lobe body is some, mutual close-fitting between described movable flap body, object is closure catheter body, to avoid ureteral catheter entering ureter to the process of bladder, urine directly, from conductor housing inflow catheter body, affects surgical work.

Preferably, described conductor housing is circle obtuse, avoids ureteral catheter scratch soft tissue in the process that enters or leave in human body.

Further, described movable flap body evenly divides and is located on conductor housing, facilitates the manufacturing of ureteral catheter.

Further, described movable flap body top is intersected in conductor housing middle part, so that the resistance equalization of each movable flap body end, it is movable in human body to control better through the seal wire of conductor housing.

Alternatively, described movable flap body bottom offers groove, makes movable flap body have more motility, reduces the resistance to seal wire, and movable flap body is more easily opened by seal wire.

Alternatively, described catheter body side is provided with opening, makes ureteral catheter further assist seal wire or ureteroscope to carry out surgical work by opening.

Compared with prior art, the beneficial effects of the utility model are: this utility model is by being arranged with at least one movable flap body at the conductor housing of ureteral catheter, when seal wire penetrates catheter body and arrives conductor housing, apply certain power as long as continue to movable flap body, movable flap body just can be opened, seal wire can arrive precalculated position through conductor housing, and now ureteral catheter just can be extracted in body easily, after just can be along seal wire the double J pipe preposition that implants; Of the present utility model improving one's methods simply, with low cost, can in existing ureteral catheter, popularize.

Brief description of the drawings

Fig. 1 is that this utility model conductor housing is cut apart the structural representation that has three movable flap bodies.

Fig. 2 is that this utility model conductor housing is cut apart the partial enlarged drawing that has three movable flap bodies.

Fig. 3 is that this utility model conductor housing is cut apart the structural representation that has four movable flap bodies.

Fig. 4 is that this utility model conductor housing is cut apart the structural representation that has a movable flap body.

Detailed description of the invention

Below in conjunction with detailed description of the invention, this utility model is further described.Wherein, accompanying drawing is only for exemplary illustration, expression be only schematic diagram, but not pictorial diagram can not be interpreted as the restriction to this patent; For embodiment of the present utility model is described better, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; For a person skilled in the art, in accompanying drawing some known features and explanation thereof may to omit be understandable.

As shown in Figure 1 and 2, a kind of ureteral catheter, comprise catheter body 1 and conductor housing 2, ureteral catheter is generally flexible material, can in the ureter of human body, pass in and out flexibly, conductor housing 2 is circle obtuse, conductor housing 2 is divided into three parts from top to side, become three mobilizable lobe bodies 21, movable flap body 21 evenly divides and is located on conductor housing 2, and the top of each movable flap body 21 is intersected in conductor housing middle part, the bottom of movable flap body 21 offers groove 22, as long as seal wire (not shown in FIG.) is from catheter body 1 inside to the movable flap body 21 top application of forces, three lobe bodies 21 just return automatically to open and allow seal wire pass, after seal wire leaves, three lobe bodies 21 are because resilience force automatically resets, and mutual close-fitting closure catheter body 1, so that conductor housing 2 keeps circle obtuse, prevent ureteral catheter scratch soft tissue in the process that enters or leave human body.

When operation, first ureteral catheter is inserted to human body ureter, conductor housing 2 leads catheter body 1 to enter bladder along ureter, or can arrive other precalculated positions such as opening of bladder, need to implant the position of double J pipe (not shown in FIG.), then seal wire is inserted in the one end outside ureteral catheter is positioned at human body, seal wire enters to bladder direction gradually along ureteral catheter, arrive conductor housing 2, now, because conductor housing 2 is arranged with three openable movable flap bodies 21, seal wire backs down movable flap body 21 and moves on through conductor housing 2, seal wire arrives behind precalculated position, seal wire is temporary transient to stop in vivo, ureteral catheter is outwards withdrawn human body gradually along seal wire, after ureteral catheter is withdrawn from completely, the sweep of stretching double J pipe front end is also enclosed within on seal wire, then double J pipe is entered in human body until arrive predeterminated position along seal wire, after double J pipe successfully arrives, finally seal wire is pulled out to human body gradually, because seal wire has left double J pipe, double J pipe fore-end resets curling again, so that support opening of bladder or ureteral blocking portion, play the object of drain.

In addition, in order to be convenient to after ureteroscope (not shown in FIG.) or seal wire put in ureteral catheter to launch other surgical work in human body simultaneously, for example excise soft tissue or transfusion etc., be therefore provided with opening 3 at the side of double J pipe, improve the practicality of ureteral catheter.

In like manner, as shown in Figure 3,4, the conductor housing of ureteral catheter can also be divided into four or a movable flap body, can select according to the needs on manufacture difficulty or actual use.

Obviously, above-described embodiment of the present utility model is only for this utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, the especially quantity of movable flap body on conductor housing, here without also giving exhaustive to all embodiments.All any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in the protection domain of this utility model claim.

Claims

1. a ureteral catheter, comprise catheter body (1) and conductor housing (2), it is characterized in that, described conductor housing (2) is cut apart at least one movable flap body (21), close-fitting closure catheter body (1) mutually between described movable flap body (21) or between movable flap body (21) and conductor housing (2), described conductor housing (2) is circle obtuse, described movable flap body (21) evenly divides and is located on conductor housing (2), described movable flap body (21) top is intersected in conductor housing (2) middle part, described movable flap body (21) bottom offers groove (22), described catheter body (1) side is provided with opening (3).