CN214970959U - Large water sac catheter - Google Patents

Abstract

The invention discloses a large water bag catheter, which comprises a catheter body, a water bag, a catheter and a liquid bag; the water bag is arranged outside the catheter body and surrounds the catheter body; the catheter is sleeved in the catheter body and comprises three channels which are mutually converged, the three channels are respectively a first channel, a second channel and a third channel, a switching valve is arranged at the joint of the three channels, and the switching valve is used for switching the communication mode of each channel; the first channel is connected with the water bag, the second channel is connected with the liquid bag, and the third channel is used for connecting the injector; one end of the catheter body is an embedded end, the other end of the catheter body is an external end, and the embedded end is provided with a urine inlet hole; the catheter has the characteristic of no damage to urethra when being pulled out.

Description

Large water sac catheter

Technical Field

The invention relates to the field of medical instruments, in particular to a large water sac catheter.

Background

Although the operation and procedure of indwelling the catheter is standardized in the existing care, the detailed problem of extracting the catheter is ignored. The existing catheter is provided with a water bag, and the catheter is fixed in the bladder by filling gas or liquid into the water bag and the water bag after expansion, so that the catheter is prevented from sliding out of the urethra. The large water sac catheter is commonly used in the field of urology surgery, urinary bladder convection flushing is generally and routinely used after transurethral prostate and bladder surgery, the water sac of the large water sac catheter is pulled by external force, and pulling force is fixed on the inner side of thighs of a patient through the catheter in vitro, so that the aim of compressing a prostate pit to stop bleeding is fulfilled; when the catheter is pulled out, the gas or liquid in the expanded water sac needs to be pumped out completely, so that the volume of the water sac is minimized, the water sac is shrunk, and the catheter is pulled out of the urethra conveniently. Because the water bag is through the inflation after flat shrink again, its elasticity is impaired, original state can not be replied completely to the water bag of flat shrink, and the water bag after the flat shrink forms slice, sleeve form, strip rope form, and consequently the edge of the water bag after the flat shrink is thinner, pulls out the in-process from the urethra at the catheter, and the water bag edge after the flat shrink can rub with the urethra inner wall, and the damage urethra mucosa, patient can produce painful uncomfortable sense.

In view of the above problems, the present invention provides a large water bag urinary catheter, and the present invention is based on the design.

Disclosure of Invention

The invention provides a large water bag catheter which has the characteristic that the urethra is not damaged when the catheter is pulled out; specifically, the invention is realized by the following technical scheme:

a large water bag catheter comprises a catheter body, a water bag, a catheter and a liquid bag; the water bag is arranged outside the catheter body and surrounds the catheter body; the catheter is sleeved in the catheter body and comprises three channels which are mutually converged, the three channels are respectively a first channel, a second channel and a third channel, a switching valve is arranged at the joint of the three channels, and the switching valve is used for switching the communication mode of each channel; the first channel is connected with the water bag, the second channel is connected with the liquid bag, and the third channel is used for connecting the injector; one end of the catheter body is an embedding end, the other end of the catheter body is an external end, and a urine inlet hole is formed in the embedding end.

Further, the distance between the water sac and the embedded end of the catheter body ranges from 1cm to 3 cm.

Preferably, the water bladder is spaced from the insertion end of the catheter body by a distance in the range of 1.5 cm.

Furthermore, a washing pipe is arranged in the cavity of the catheter body, one end of the washing pipe is communicated with the placing end of the catheter body, and a washing hole is formed in the placing end.

Further, the liquid bag is filled with 1ml to 3ml of liquid.

Preferably, the fluid pouch is filled with 2ml of fluid.

Further, the liquid bag is arranged outside the catheter body.

The beneficial effect of this application lies in:

by arranging the liquid bag, the liquid bag is connected with the water bag; therefore, in the process of pulling out the urethral catheter, the switching valve is firstly screwed to enable the first channel to be communicated with the third channel, and the syringe extracts liquid from the water sac through the third channel to enable the water sac to be deflated; the change-over valve is screwed to enable the second passage to be communicated with the first passage, liquid in the liquid bag is squeezed into the water bag, the sheet-shaped water bag is slightly bulged, the edge of the sheet-shaped water bag becomes smooth and round, the catheter is pulled out of the urethra at the moment, a small amount of liquid in the water bag plays a role in lubrication when the catheter is pulled out, and the urethra of a patient cannot be damaged; the water bag cannot be excessively expanded, so that the water bag is prevented from being tightly attached to the urethral wall again, the liquid in the liquid bag is filled with 2ml of liquid, the liquid with the volume can not excessively expand when the edges of the flaky and irregular water bags become round, and the liquid is obtained through multiple tests, the metering is accurate, the liquid which is re-filled into the water bag every time to enable the round shriveled water bag is fixed, and the liquid is not required to be determined by the experience of a nursing staff, so that the nursing staff is facilitated.

When the injector injects liquid into the water sac from the third channel, the liquid injected into the water sac cannot flow into the second channel because the guide pipe is provided with the switching valve; when the injector finishes the liquid extraction from the water bag through the third channel, the pressure in the water bag is lower, the switching valve is screwed to communicate the first channel with the second channel, and the liquid in the liquid bag directly flows into the water bag.

Drawings

FIG. 1 is a schematic view of an embodiment of a catheter according to the present invention, wherein the syringe is filled with liquid and the water sac is inflated;

FIG. 2 is a cross-sectional view of an embodiment of the catheter of the present invention having a syringe filled with a fluid and a bladder inflated with the fluid;

FIG. 3 is a cross-sectional view of an embodiment of a catheter provided in accordance with the present invention in which a syringe extracts a fluid from a bladder that is collapsed;

fig. 4 is a cross-sectional view of an embodiment of the catheter of the present invention in which liquid in the liquid bladder is squeezed into the water bladder.

Wherein: 1. a catheter body; 2. a water bladder; 3. a conduit; 4. a liquid pocket; 5. a first channel; 6. a second channel; 7. a third channel; 8. a changeover valve; 9. a flush tube; 10. an input end is arranged; 11. an outer end of the body; 12. a urine inlet port; 13. and (6) flushing the hole.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1 and 2, the large water bag urinary catheter comprises a urinary catheter body 1, a water bag 2, a catheter 3, a liquid bag 4 and an irrigation pipe 9; one end of the catheter body 1 is an insertion end 10, the other end is an external end 11, a urine inlet hole 12 is formed in the insertion end 10, when the catheter is used, the insertion end 10 of the catheter body 1 is placed in a bladder, the external end 11 is placed outside a human body and connected with a urine bag, and urine flows into the catheter body 1 from the urine inlet hole 12 of the insertion end 10. The water bag 2 is arranged on the outer wall of the catheter body 1, the distance between the water bag 2 and the embedded end 10 of the catheter body 1 ranges from 1cm to 3cm, the preferred distance is 1.5cm, and the water bag 2 surrounds the catheter body 1; the catheter 3 is sleeved in the cavity of the catheter body 1 and is communicated with the water bag 2; the catheter 3 comprises three channels, the three channels are a first channel 5, a second channel 6 and a third channel 7 respectively, a switching valve 8 is arranged at the intersection of the three channels, and the switching valve 8 is used for switching the communication mode of each channel; the first channel 5 is communicated with the water bag 2, the second channel 6 is connected with the liquid bag 4, and the third channel 7 is used for connecting an injector; the first channel 5 of the catheter 3 is arranged in the cavity inside the catheter body 1, and the change-over valve 8, the second channel 6 and the third channel 7 are arranged outside the catheter body 1; the injector injects into the water sac 2 through the third channel 7, so that the water sac 2 expands, the outer wall of the water sac 2 is tightly attached to the inner wall of the bladder, and the water sac 2 is ensured not to slide out of the bladder.

The syringe injects 20ml to 40ml of liquid, preferably 30ml of liquid into the water sac 2 through the third channel 7.

The liquid bag 4 is filled with 1ml to 3ml of liquid, and preferably the liquid bag 4 is filled with 2ml of liquid; the liquid bag 4 is arranged outside the catheter body 1; when in use, the change-over valve 8 is screwed to ensure that the second channel 6 is communicated with the first channel 5, and the liquid in the liquid bag 4 flows into the water bag 2; when not in use, the switching valve 8 is turned, and the second passage 6 and the first passage 5 are closed, preventing the liquid in the liquid bag 4 from flowing into the water bag 2.

The washing tube 9 is sleeved in the cavity of the catheter body 1, one end of the washing tube 9 is communicated with the placing end 10 of the catheter body 1, and a washing hole 13 is formed in the placing end 10. In use, the irrigating fluid is introduced into the bladder through the irrigating tube 9.

The insertion of the catheter into the urethra is as follows:

as shown in figure 2, firstly, the catheter is inserted into the urethra and sent into the body of a patient, so that the water sac 2 is placed into the body, the change-over valve 8 is screwed, the third channel 7 is communicated with the first channel 5, 10ml to 30ml of liquid is injected into the water sac 2 through the third channel 7 by the injector, so that the water sac 2 is expanded, the outer wall of the water sac 2 is tightly attached to the inner wall of the bladder, and the insertion process of the catheter is completed.

The process of catheter extraction from the urethra is as follows:

firstly, the change-over valve 8 is screwed, so that the third channel 7 is communicated with the first channel 5, the injector pumps all liquid from the water bag 2 through the third channel 7, at the moment, the pressure in the water bag 2 is small, and the water bag 2 cannot be completely recovered due to the material problem of the water bag 2, the water bag 2 is shrunken to form a sheet-shaped body which is in a shape of a fold, a saw tooth and a sleeve, as shown in fig. 3, the edge of the sheet-shaped water bag 2 is irregular, and when the catheter is pulled out from the urethra, the irregular edge of the sheet-shaped water bag 2 easily scratches the inner wall of the urethra, so that the pain and discomfort of a patient are increased. And then the change-over valve 8 is screwed, so that the third channel 7 and the first channel 5 are closed, the second channel 6 is communicated with the first channel 5, and the pressure in the water bag 2 is smaller, so that the liquid in the liquid bag 4 can automatically flow into the water bag 2, the sheet-shaped water bag 2 is slightly bulged, the edge of the sheet-shaped water bag 2 becomes round and smooth, as shown in fig. 4, the catheter is pulled out from the urethra at the moment, and the discomfort of a patient cannot be increased when the catheter is pulled out.

The above is the preferred embodiment of the present invention, and several other simple substitutions and modifications made on the premise of the inventive concept should be considered as falling into the protection scope of the present invention.

Claims (7)

1. A large water sac catheter is characterized in that: comprises a catheter body, a water bag, a conduit and a liquid bag; the water bag is arranged outside the catheter body and surrounds the catheter body; the catheter is sleeved in the catheter body and comprises three channels which are mutually converged, the three channels are respectively a first channel, a second channel and a third channel, a switching valve is arranged at the joint of the three channels, and the switching valve is used for switching the communication mode of each channel; the first channel is connected with the water bag, the second channel is connected with the liquid bag, and the third channel is used for connecting the injector; one end of the catheter body is an embedding end, the other end of the catheter body is an external end, and a urine inlet hole is formed in the embedding end.

2. A large water-bag urinary catheter according to claim 1, wherein: the distance between the water bag and the embedded end of the catheter body ranges from 1cm to 3 cm.

3. A large water-bag urinary catheter according to claim 1, wherein: the distance between the water sac and the embedded end of the catheter body is 1.5 cm.

4. A large water-bag urinary catheter according to claim 1, wherein: a washing pipe is also arranged in the cavity of the catheter body, one end of the washing pipe is communicated with the placing end of the catheter body, and a washing hole is formed on the placing end.

5. A large water-bag urinary catheter according to claim 1, wherein: the liquid bag is filled with 1ml to 3ml of liquid.

6. A large water bag urinary catheter according to claim 5, wherein: the fluid pouch was filled with 2ml of fluid.

7. A large water-bag urinary catheter according to claim 1, wherein: the liquid bag is arranged outside the catheter body.

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