CN215426872U

CN215426872U - Bladder fistulation tube

Info

Publication number: CN215426872U
Application number: CN202121999988.9U
Authority: CN
Inventors: 刘照旭; 郭兆新
Original assignee: Runbai Medical Technology Shandong Co ltd
Current assignee: Runbai Medical Technology Shandong Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-07
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a bladder fistulation tube, comprising: a main tube, the proximal end of which is provided with a catheter head; a balloon disposed at a distal end of the main tube; the valve is arranged at the proximal end of the catheter head; the part which is reserved in the main body tube and is positioned outside the body is inserted into the main body tube, and the inserted end of the air tube is communicated with the saccule; and the air pipe valve is connected with the other end of the air pipe, which is positioned outside the main body pipe. The bladder stoma tube based on the utility model is convenient to use and has little influence on the arrangement of the inflation tube.

Description

Bladder fistulation tube

Technical Field

The utility model relates to a bladder fistulation tube.

Background

Cystostomy and catheterization are two nursing operations for leading out urine in a bladder, and have corresponding indications respectively, wherein cystostomy is suitable for clinical application which is not suitable for catheterization. In particular, cystostomy is suitable for the following patients:

(1) patients with acute urinary retention cannot insert a catheter from the urethra and are not suitable for emergency prostatectomy.

(2) Severe bladder or prostate bleeding.

(3) Patients with severe azotemia.

(4) Acute pain is caused after the catheter is inserted, and pain cannot be relieved by using spasmolytic and pain-relieving medicines.

(5) Patients with severe urinary tract infections.

The structure of the bladder fistulation tube is different from that of the catheter due to different ways of inserting into the body of a patient, and the catheter has smaller tube diameter and larger length, and the catheter focuses on continuous catheterization and is often provided with a urine bag (also called a urine collection bag and a drainage bag). Cystostomy tubes are relatively short and the tube diameter may be relatively large, but also fit a urine bag. The urine bag is inconvenient to be arranged on a patient to move, and once the urine bag is not tightly connected with the cystostomy tube, urine is easy to fall.

As a general structure, a commonly used bladder fistulization tube at present comprises a main tube, a balloon is sleeved at the far end of the main tube, and the balloon needs to be inflated after the bladder fistulization tube is inserted into the bladder of a patient, so that the main tube is often accompanied with an inflation tube, the installation position of the inflation tube is higher in the process of catheterization at any time, and the arrangement flexibility of the inflation tube is relatively poor.

Note: distal end refers in the art to the end of the bladder where the cystostomy tube is inserted into the bladder; correspondingly, the proximal end is the other end of the main tube.

Disclosure of Invention

The utility model aims to provide a bladder stoma tube which is convenient to use and has small influence on the arrangement of an inflation tube.

In an embodiment of the present invention, there is provided a bladder stoma comprising:

a main tube, the proximal end of which is provided with a catheter head;

a balloon disposed at a distal end of the main tube;

the valve is arranged at the proximal end of the catheter head;

the part which is reserved in the main body tube and is positioned outside the body is inserted into the main body tube, and the inserted end of the air tube is communicated with the saccule;

and the air pipe valve is connected with the other end of the air pipe, which is positioned outside the main body pipe.

Optionally, the first distance between the balloon and the distal end face of the main tube is 0.25-0.5 cm.

Optionally, the length of the balloon in the axial direction of the main tube is 1.5-2.5 cm, and the maximum diameter of the balloon after being inflated is positively correlated with the first distance.

Optionally, the distal end of the main tube has a radius.

Optionally, the surface of the main tube is coated with an antibacterial biological coating.

Optionally, the outer surface of the main tube is provided with a scale.

Optionally, the 0 point of the ruler is at the proximal end of the balloon and the maximum value of the ruler is 20 cm;

wherein the position defining the maximum value of the scale is the position where the trachea is inserted into the main tube.

Optionally, the part of the trachea that is outside the main body tube is located in a manifold that is integral with the main body tube, and the trachea has a distal end fitted with the trachea valve.

Optionally, the main tube is bounded by a position where the trachea is inserted into the main tube, so as to form a reserved section from the position to the proximal end of the main tube and an insertion section from the position to the distal end of the main tube;

the reserved section and the manifold are arranged in parallel; or

The reserved section and the manifold are divided on two sides of the axis of the intervention section.

Optionally, the air pipe valve is configured to:

a rubber plug is embedded into the tail end of the air pipe, and the outer end of the rubber plug is a plane or a central groove is preset on the plane.

The conventional bladder stoma tube needs to be connected with a urine bag in real time, the urine bag is provided with a separate drainage tube, and a patient carries the urine bag and the drainage tube, and is very inconvenient to move even if the patient is in bed. In the embodiment of the utility model, the provided bladder fistulation tube is provided with a valve at the proximal end, and when a patient has urine, the valve can be opened to lead out the urine, so that the use is very convenient. The flexibility of the position and the structural arrangement of the trachea for inflating and deflating the balloon is relatively good in view of the fact that no real-time connection with a urine bag is required, thereby having less influence on the arrangement of the trachea compared with a conventional bladder stoma.

Drawings

Figure 1 is a schematic view of a cystostomy tube construction according to an embodiment (internal construction shown in dashed lines).

Fig. 2 is a schematic view of an external structure of a cystostomy tube according to an embodiment.

Fig. 3 is a schematic view showing a normal structure of a bladder stoma in another embodiment.

Fig. 4 is a schematic view showing a working state of the bladder stoma tube in another embodiment.

In the figure: 1. the catheter comprises a far end, 2, a port edge, 3, a reserved head, 4, a balloon, 5, an air pipe, 6, a scale, 7, a first branch pipe, 8, a ball valve, 9, a catheter head, 10, a near end, 11, a rubber plug, 12, a second branch pipe, 13, a main pipe, 14, a flow passage and 15, and a manifold.

L1. first distance, l2. second distance, l3. third distance.

Detailed Description

It will be appreciated that for a bladder stoma, it has a defined distal end 1 and a proximal end 10, where distal end 1 is the end of the bladder stoma that is introduced into the patient and proximal end 10 is the end that is left outside the patient.

Cystostomy and its indications are well known in the nursing sector and will not be described in further detail herein.

The general principles, structure and effect of the present invention will now be described in terms of two bladder stoma embodiments as shown in figures 1-4.

In an embodiment of the utility model, the bladder stoma tube comprises a main tube 13, a balloon 4, a valve, a trachea 5, wherein the main tube 13 is the main body of the bladder stoma tube and serves as an attachment for the other parts.

The main tube 5 is preferably made of silicon rubber, polyvinyl chloride is selected next, and silicon rubber is selected again.

Considering that the bladder fistulation tube may be inserted into a human body for a long time (generally, once a month), it is a relatively better choice to coat the surface of the bladder fistulation tube with an antibacterial coating, and it is obvious that the antibacterial coating is a medical antibacterial coating, such as nano silver powder, ekang powder and the like, which are commonly used, and the nano silver coating is widely applied and is preferred by the embodiment of the present invention, and the antibacterial coatings belong to common coatings in the field and are not described herein again.

It can be seen from fig. 1-4 that the main tube 13 is a straight tube, but as mentioned above, the main tube 13 is made of a material, such as silicone rubber, which is relatively soft and has good biocompatibility, so that a user can bend the main tube 13 into a desired shape without blocking the main tube.

As can be seen in fig. 1, the proximal end 10 of the main tube 13 is left with the catheter tip 9, whereas in Figs. 3-4 there is no overt construction of the catheter tip 9, in that the main tube 13 itself can serve as a urinary drainage channel without contaminating, for example, the patient's clothing etc.

The purpose of the reserved catheter stub 9 is, on the one hand, to facilitate the connection of the catheter and the bag, and, on the other hand, the reserved catheter stub 9 itself is also advantageously cleaned.

Even if the patient is bedridden, the catheter head 9 may be connected to e.g. a urine bag, and may e.g. be used for periodical urination, or when the patient has a desire to urinate, to receive urine via said catheter head 9 using a urine bag, or a urine bowl.

The balloon 4 is positioned offset from the distal end 1 of the main tube 13, i.e. the insertion end of the cystostomy tube, and after insertion of the cystostomy tube into place, the balloon 4 is inflated, for example by the trachea 5, and after filling of the balloon 4, the trachea 5 is closed.

Because the balloon 4 is located in the patient in the use state, the specific state of the balloon 4 cannot be seen, when the balloon is used, a given amount of gas or liquid can be injected through a syringe, or a pressure inflation mode can be adopted, namely, a gas or liquid with constant pressure can be filled in the balloon, after the balloon 4 is inflated to a certain degree, the resilience force of the balloon 4 just can overcome the pressure of the gas or liquid to maintain the desired state, and then the trachea 5 is closed.

Regarding the air tube 5, a one-way valve is disposed at the tail end, i.e. the right end of the second branch tube 12 shown in fig. 1, and can be directly configured as a rubber plug 11, for example, a syringe is used to puncture the rubber plug 11 for inflation or liquid, and after filling, the puncture needle of the syringe is withdrawn. Whereas in case of e.g. deflation, the balloon 4 is deflated naturally, directly by puncturing with e.g. a needle of a syringe.

If a one-way valve is used, it is desirable to configure the one-way valve as a controllable one-way valve to facilitate, for example, inflation and deflation control.

If the rubber plug 11 is adopted, the central groove is arranged on the end surface of the near end or the end surface of the outer end of the rubber plug 11, on one hand, the puncture position is controlled, and the puncture of the air pipe 5 is avoided.

In addition, for the rubber plug 11, because the rubber plug 11 has strong contractility, the rubber plug 11 can pre-open the ball needle hole, and can use the ball needle to fill and deflate, and the ball needle does not have a sharp tip, so that the damage of the trachea 5 can not be caused.

To effectively control the urine discharge, a valve, such as the ball valve 8 illustrated in fig. 1, is mounted at the proximal end 10 of the catheter tip, which relieves the patient of the burden by discharging urine by means of, for example, the ball valve 8, instead of a urine bag being connected in real time at the same time, when, for example, the patient has a urine intention.

Due to e.g. a conventional bladder stoma, which is directly connected to a urine bag, urine is discharged at any time and, in the long term, tends to affect the patient's natural response to the desire to urinate. In the embodiment of the utility model, the valve is adopted for releasing urine, so that the urine can be released when the patient has a urine intention, and the natural reaction of the patient to the urine intention is not influenced.

With respect to the choice of valve, the ball valve 8 illustrated in fig. 1 and 3 is preferred, and in some embodiments, a tube clamp, for example, or other type of valve that facilitates manual operation may also be used.

In the conventional bladder stoma tube, the reserved first distance L1 is relatively long, usually 1.5-2 cm, and the supporting function of the balloon 4 is relatively weakened due to the relatively long length. It will be appreciated that if, for example, the first distance is relatively long, the control of the direction of the distal end of the bladder stoma by the support of the balloon 4 is reduced, tending to bring the distal end 1 of the bladder stoma into direct contact with the inner surface of the bladder, causing bladder pathology.

In an embodiment of the present invention, the first distance L1 is not greater than 0.5 cm.

Note: the first distance L1 refers to the distance between the balloon 4 and the distal end surface of the main tube 13, see fig. 3.

For manufacturability, the first distance L1 is not too small, which is not favorable for fixing the balloon 4 on the main tube 13, and the first distance L1 is not smaller than 0.25 cm.

Further, the length of the balloon 4 in the axial direction of the main tube 13 is 1.5-2.5 cm, and the maximum diameter of the balloon 4 after being inflated is positively correlated with the first distance L1. This configuration takes into account the influence of the supporting action of the balloon 4 on the distal end 1, and it is obvious that the larger the balloon 4, the more the distal end 1 can be moved away from the inner wall of the bladder, and therefore, if the first distance L1 is relatively large, the maximum diameter of the balloon 4 can be increased appropriately.

In addition, the balloon 4 should not be too large, and after all, should be as small as possible as an intervention material in order to meet the use requirements, otherwise the pain of the patient is increased.

Further, in order to reduce the probability of injury to human tissue, the distal end 1 of the main body tube 13 has a radius. The rounding may be a technical rounding, for example, the main body tube 13 itself forms a relatively smooth end due to edge shrinkage during manufacture. A fracture may have relatively sharp edges as compared to a fracture formed by, for example, shearing a tube. The technical rounding may be an option, but will inevitably increase the manufacturing cost, in that each main tube 13 needs to be manufactured independently, most of the tube bodies are manufactured continuously, and then the main tube bodies are obtained by adopting a blanking method, wherein the blanking method usually adopts a shearing process, so that sharp edges are easy to form.

In some embodiments, the distal end 1 may be covered with a silicone sleeve, for example, the silicone sleeve is slightly longer than the distal end 1, the diameter of the silicone sleeve is slightly smaller than the caliber of the distal end 1, and after the silicone sleeve is covered with an elastic sleeve, the extended portion will wrap around the tube mouth edge of the distal end 1 due to the shrinkage of the silicone sleeve, so as to form a structure similar to a radius.

The part of silica gel cover back growth on distal end 1 is 2 ~ 4 mm. The silica gel cover is in front of distal end 1, or the silica gel cover internal diameter before taking place to stretch out and draw back roughly corresponds with distal end internal diameter, should not undersize, otherwise the suit degree of difficulty is relatively great.

Similarly, it is an option to use an antibacterial coating for the whole main tube 13, and it is also a better option to sleeve the main tube 13 with a silicone sleeve with relatively good biocompatibility.

For the length of the fistulization tube inserted into the bladder, the evaluation is generally carried out by the sense of a caregiver under the conventional condition, and the length of the fistulization tube inserted into the bladder is not easy to control, therefore, referring to the structures illustrated in the attached figures 1-4 of the specification, the scale 6 is arranged on the outer surface of the main tube 13, and the scale 6 can be visually observed, so that the length of the main tube 13 inserted into the body of a patient can be evaluated, the burden of the caregiver can be reduced, and particularly, the balloon 4 is shielded by human tissues after entering the bladder, and no reference object is provided.

The scale 6 can be processed on the main tube 13 by a micro-engraving process (e.g. a laser engraving process), or can be printed by, for example, an anti-corrosion printing process, preferably, the former can avoid the side effect of printing ink on human tissues.

Regarding the length of the scale 6, it is theoretically as small as possible when the use condition is satisfied, and it is to be understood that the length to be evaluated is generally not large, and therefore, assuming that the 0 point of the scale is at the proximal end of the balloon 4, the maximum value of the scale 4 is not preferably larger than 20 cm.

Wherein, the position of the maximum value of the scale 6 is defined as the position of the trachea 5 inserted into the main tube 13, and the further growth has no substantial meaning, and the part of the trachea 5 which is not exposed on the main tube 13 is not suitable for being inserted into the bladder.

Referring to the configuration illustrated in fig. 3, the portion of the trachea 5 external to the main tube 13 is located within a manifold 15, which facilitates the integration of relatively loose tubing, and is not conducive to leak at the connection point, such as the point of insertion of the trachea 5 into the main tube 13.

Further, the manifold 15 is of unitary construction with the main tube 13, as shown in figure 3 as being integrally formed. Wherein the gas tube 5 is sealed at the end of the manifold 15 and is provided with said gas tube valve at the end of the gas tube 5.

The main tube 13 is bounded by the position where the trachea 5 is inserted into the main tube 13, so as to form a reserved section from the position to the near end 10 of the main tube 13 and an insertion section from the position to the far end 1 of the main tube 13; the reserved section can refer to the first branch pipe 7 shown in fig. 1, and the first branch pipe 7 can be a constituent part of the main pipe 13 or a connected independent pipe body of the main pipe 13.

In the configuration shown in fig. 3, the reserve is arranged parallel to the manifold 15.

Whereas in fig. 1 the reserve segment and the manifold 15 are located on either side of the axis of the access segment, in the configuration illustrated in fig. 1 the bladder stoma tube is shaped like a Y, with the first branch 7 and the second branch 12 located on either side of the axis of the access segment.

In addition, as a parameter, the distance from the balloon 3 to the manifold 15 in fig. 3 is denoted as a second distance L2, and this portion is used to determine the intervention amount. L3 is used to define the length of the first leg 7.

Claims

1. A bladder stoma tube comprising:

a main tube, the proximal end of which is provided with a catheter head;

a balloon disposed at a distal end of the main tube;

the valve is arranged at the proximal end of the catheter head;

2. A bladder stoma tube according to claim 1, wherein the first distance between the balloon and the distal end surface of the main tube is 0.25 to 0.50 cm.

3. The bladder stoma tube according to claim 2, wherein the balloon has a length of 1.5-2.5 cm in the axial direction of the main tube, and the maximum diameter of the balloon after inflation is positively correlated with the first distance.

4. A bladder fistulation tube as in claim 2 or 3 wherein the distal end of the main tube has a radius.

5. A bladder stoma tube according to claim 1, wherein the surface of the main tube is coated with an antibacterial biological coating.

6. A bladder stoma tube according to claim 1, wherein the outer surface of the main tube is provided with a scale.

7. A bladder stoma tube according to claim 6, wherein point 0 of the scale is at the proximal end of the balloon and the maximum value of the scale is 20 cm;

8. A bladder stoma tube according to claim 7, wherein the portion of the trachea that is external to the body tube is located within a manifold that is integrally formed with the body tube and the end of the trachea is fitted with the tracheal valve.

9. A bladder stoma tube according to claim 8, wherein the main tube is bounded by a location for tracheal access to the main tube, defining a reserve section from the location to a proximal end of the main tube and an access section from the location to a distal end of the main tube;

the reserved section and the manifold are arranged in parallel; or

10. A bladder stoma tube according to claim 1, wherein the tracheal valve is configured to: