CN110860002A

CN110860002A - Portable catheter

Info

Publication number: CN110860002A
Application number: CN201810984366.5A
Authority: CN
Inventors: 熊乃欢; 李芷菱
Original assignee: Tzu Chi University Finance Corp Tzu Chi University Of Science And Technology
Current assignee: Tzu Chi University Finance Corp Tzu Chi University Of Science And Technology
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2020-03-06

Abstract

A portable catheter comprises a catheter body, a check valve and a cover sleeve; the tube body comprises a head end, a tail end and a body section connected between the head end and the tail end, the end face of the head end is provided with a combining groove, the outer surface of the tail end is inwards recessed with at least one urine guide hole, the interior of the body section is axially provided with a urine guide channel communicated with the combining groove to the urine guide hole, the bottom wall of the combining groove of the head end extends inwards to form a containing groove, the interior of the body section is provided with an annular sac chamber surrounding the periphery of the urine guide channel to the outer surface, the axial direction of the body section is provided with a liquid conveying channel communicated with the containing groove to the sac chamber, the check valve is arranged in the containing groove of the tube body and can be opened and closed in a reciprocating manner from a reversible position to a check position, the cover sleeve comprises a hollow sleeve body and a cover body, one end of the hollow sleeve body is a combining end, the other end of the hollow sleeve body is a covering end, the combining end of the hollow sleeve body is combined in the combining groove of the, to seal the urethra.

Description

Portable catheter

Technical Field

The invention relates to a medical appliance, in particular to a portable catheter.

Background

The catheter is a medical appliance for assisting urination, and is mainly used for patients who cannot urinate by themselves, avoid wounds from being dragged after operation or avoid urinary tract infection and the like.

As shown in fig. 1, a general catheter 1 is generally Y-shaped, and mainly includes a Y-shaped tube 2 and a check valve 3, wherein the head end of the Y-shaped tube 2 has a divergent urethral catheterization head end 4 and an injection head end 5, the outer side of the tail end of the Y-shaped tube 2 has a urethral catheterization hole 5 at least communicated with the urethral catheterization head end 4, the inner part of the tail end of the Y-shaped tube 2 has a water sac chamber (not shown) communicated with the injection head end 5, and the check valve 3 is disposed in the injection head end 5. When the catheter 1 is used, the tail end of the Y-shaped tube 2 extends into the bladder 92 through the urethra 91 of the human body, so that the catheter head end 4 and the injection head end 5 are left outside the human body, distilled water is injected into the water sac chamber through the check valve 3 by a syringe to be expanded into a water ball 7 to be fixed in the bladder 92, so that the catheter 1 is prevented from falling out of the human body by itself, and then a urine storage bag 8 is connected with the catheter head end 4 to collect urine flowing from the urine guide hole 5.

However, the structural design of such prior art catheters 1 presents a number of problems. Firstly, the catheter 1 must be connected with the urine storage bag 8, and the urine storage bag 8 is exposed, so that the movement is inconvenient, and the psychological pressure of embarrassment and shame is easily caused; in addition, the urine storage bag 8 needs to be held by hand when the patient moves, and the urine storage bag 8 is suspended beside the bed when the patient is in bed, but the change of the height of the urine storage bag 8 is likely to cause retrograde infection (i.e. urine backflow).

Disclosure of Invention

In view of the above, in order to solve the problems in the prior art that the existing catheter must be connected with a urine storage bag for use, which causes inconvenience in movement, psychological stress generation, and easy retrograde infection; accordingly, the present invention provides a portable urinary catheter, comprising: a tube body, including a head end, a tail end and a body section connected between the head end and the tail end, the end face of the head end is recessed axially inwards to form a combining groove, the outer surface of the tail end is recessed radially inwards to form at least one urine guide hole, a urine delivery channel communicated with the combining groove to the urine guide hole is formed axially in the body section, a containing groove extends axially inwards from the bottom wall of the combining groove of the head end, a bag chamber surrounding the periphery of the urine delivery channel to the inner surface is formed in the body section at the inner position adjacent to the tail end, and the body section axially includes a fluid delivery channel communicated with the containing groove to the bag chamber; the check valve is arranged in the containing groove of the pipe body and can be opened and closed in a reciprocating manner from a reversible position to a check position; and the cover sleeve comprises a hollow sleeve body and a cover body, one end of the hollow sleeve body is a combination end, the other end of the hollow sleeve body is a covering end, the combination end of the hollow sleeve body is combined in the combination groove of the pipe body, and the cover body is detachably combined on the covering end of the hollow sleeve body to seal the ureter.

The portable catheter is characterized in that the catheter body is integrally made of medical silica gel, is soft and bendable, and the outer surface of the catheter body is coated with the hydrogel layer, so that discomfort of a patient during use can be reduced.

In the portable urinary catheter, the check valve is a piston-type check valve.

When the check valve is located at the reversible position, the distilled water in the sac chamber can flow out from the check valve to the outside through the infusion channel after passing through the check valve from the outside, so that the sac chamber is expanded to form a water ball shape, and the distilled water in the sac chamber can flow out from the check valve to the outside through the infusion channel.

In the portable urinary catheter, when the cover body is separated from the hollow sleeve body, the urinary channel is open.

In the portable urinary catheter, the cover sleeve further comprises a flexible connector, and the flexible connector is connected between the hollow sleeve body and the cover body.

In the portable urinary catheter, a concave fastening ring groove is formed on the end surface of the cover end of the hollow sleeve body, a convex fastening ring flange is formed on the end surface of the inner side of the cover body, and when the cover body is combined with the cover end of the hollow sleeve body, the fastening ring flange is fastened in the fastening ring groove.

In the portable urinary catheter, the hollow sleeve body of the cover sleeve can be shortened and extended.

In the portable urinary catheter, the hollow sheath body of the cover sheath is formed by connecting a plurality of mutually foldable and contractible lantern rings and mutually unfoldable and extensible lantern rings.

When the urine bag is used, the parts exposed outside the human body are few, and the effects of preventing urine from leaking and urinating can be achieved by utilizing the connection and the separation between the cover body of the cover sleeve and the hollow sleeve body, so that the urine bag does not need to be connected with the urine storage bag any more, a user can have the convenience of action, excellent confidentiality and free feeling, no foreign body feeling is generated, and the psychological pressure of embarrassment, shame, self-inferiority and the like is not generated.

Drawings

Fig. 1 is a schematic view of a prior art urinary catheter in use.

Fig. 2 is a perspective assembly view of the first preferred embodiment of the present invention.

Fig. 3 is an exploded perspective view of the embodiment shown in fig. 2.

Fig. 4 is a combined cross-sectional view of the embodiment shown in fig. 2.

Fig. 5 is an enlarged partial cross-sectional view of the embodiment of fig. 2.

Fig. 6 is a schematic diagram of the use state of the embodiment shown in fig. 2.

Fig. 7 is a schematic view of the use state of the embodiment shown in fig. 2.

Fig. 8 is a perspective assembly view of a second preferred embodiment of the present invention.

Fig. 9 is an exploded perspective view of the embodiment shown in fig. 8.

Fig. 10 is a combined cross-sectional view of the embodiment shown in fig. 8.

Fig. 11 is a schematic view of the use state of the embodiment shown in fig. 8.

FIG. 12 is a schematic view of the embodiment of FIG. 8 in use.

Description of the reference numerals

The prior art is as follows:

catheter 1Y-shaped tube body 2

Check valve 3 urethral catheterization head end 4

Liquid injection head end 5 urethral orifice 5

Water ball 7 urine storage bag 8

Urethra 91 bladder 92

The first embodiment of the present invention:

portable urinary catheter 100 tube 10

Head end 11 and tail end 12

Body section 13 with a slot 14

Urethral orifice 15 urethral duct 15

Containing groove 17 capsule chamber 18

Infusion channel 19 check valve 20

Hollow sleeve body 31 of cover sleeve 30

The coupling end 311 covers the end 312

Snap ring groove 313 cover 32

Snap ring flange 321 flexible connector 33

Urethra 91 bladder 92

Second embodiment of the invention:

portable urinary catheter 200 tube 40

Check valve 50 cover 50

Hollow sleeve body 51 collar 514

A cover 52.

Detailed Description

To further clarify the features and advantages of the present invention, there is shown in the drawings and described in the following detailed description of preferred embodiments:

referring to fig. 2 to 7, a portable urinary catheter 100 according to a first preferred embodiment of the present invention comprises a tubular body 10, a check valve 20 and a cover 30, wherein:

referring to fig. 2 to 5, the tube 10 is integrally made of biomedical grade silica gel, is flexible and bendable, and the outer surface of the tube 10 is coated with a hydrogel layer. The tube 10 can define a head end 11, a tail end 12 and a body section 13 connected between the head end 11 and the tail end 12, the end face of the head end 11 is recessed with a combining groove 14 axially inwards, the outer surface of the tail end 12 is recessed with two urine guide holes 15 radially inwards, a urine channel 15 communicating the combining groove 14 to the urine guide holes 15 is formed axially inside the body section 13, an accommodating groove 17 extends axially inwards from the bottom wall of the combining groove 14 of the head end 11, a bag chamber 18 surrounding the urine channel 15 from the periphery to the outer surface and forming an annular shape is formed at the inner position of the body section 13 adjacent to the tail end 12, and an infusion channel 19 communicating the accommodating groove 17 to the bag chamber 18 is formed axially inside the body section 13.

Referring to fig. 2 to 5, the check valve 20 is a piston-type check valve, and is disposed in the receiving groove 17 of the tube 10, the check valve 20 can be opened and closed back and forth between a reversible position and a check position, when the check valve 20 is in the reversible position (normally pushed to the reversible position by the syringe), distilled water can enter the bladder 18 from the outside through the check valve 20 and then through the fluid delivery channel 19, so as to expand the bladder 18 into a water-ball shape, or distilled water in the bladder 18 can flow out from the check valve 20 to the outside through the fluid delivery channel 19, and when the check valve 20 is in the check position (external force of the syringe disappears), the distilled water in the bladder 18 cannot flow out from the check valve 20 to the outside, so as to maintain the water-ball shape formed by the bladder 18.

Referring to fig. 2 to 5, the cover 30 includes a hollow sleeve 31, a cover 32 and a flexible connecting member 33. The hollow sheath 31 is integrally formed, and has a combining end 311 at one end and a covering end 312 at the other end, the combining end 311 of the hollow sheath 31 is fixedly connected to the combining groove 14 of the tube 10 in a plugging manner, the cover 32 is detachably connected to the covering end 312 of the hollow sheath 32 to close the inside of the sheath 31 (i.e. to close the urinary tract 15), the cover 32 is separable from the hollow sheath 31 by an external force to open the inside of the hollow sheath 31 (even if the urinary tract 15 is open), the flexible connecting member 33 is connected between the outer side surface of the hollow sheath 31 and the outer side surface of the cover 32, so that the cover 32 can maintain the connection relationship with the hollow sheath 31 when the cover 32 is separated from the hollow sheath 31. A concave snap ring groove 313 is formed on the end surface of the covering end 312 of the hollow sleeve 31, and a convex snap ring flange 321 is formed on the end surface of the inner side of the cover 32, so that when the cover 32 is combined with the covering end 312 of the hollow sleeve 32, the snap ring flange 321 is snapped into the snap ring groove 313.

Therefore, the above description is provided for the components and assembly of the portable urinary catheter 100 according to the first preferred embodiment of the present invention, and the following description is provided for the features of use:

first, as shown in fig. 5, when the present invention is used, the tail end 12 of the tube 10 is inserted into the bladder 92 through the urethra 91 of the user (patient), so that the cover 30 is exposed outside the human body, and then the check valve 30 is pushed by a syringe to make the check valve 30 in a reversible position, so that the distilled water in the syringe can be injected into the bladder 18 through the check valve 20 and then the infusion channel 19, so as to cause the bladder 18 to expand into a water ball shape and be fixed in the bladder 92, thereby preventing the distilled water from escaping by itself.

When the user does not need to urinate, the cover 32 of the cover 30 can be joined to the hollow sleeve 31 (as shown in fig. 5) to close the cover 30 and prevent urine from leaking out.

When the user needs to urinate, the cover 32 of the cover 30 can be directly opened from the hollow sheath 31 (as shown in fig. 7), so that the cover 30 is opened, and the urine in the bladder 92 can be discharged out through the urethral orifice 15, the ureter 15 and the cover 30 of the tube 10 in sequence. After urination is finished, the cover 32 of the cover 30 is again joined to the hollow sleeve 31 to prevent urine from leaking.

Therefore, when the invention is used, the part exposed outside the human body is very little, and the effect of preventing urine leakage and urination can be achieved by utilizing the joint and the separation between the cover body 32 of the cover sleeve 30 and the hollow sleeve body 31. The invention does not need to be jointed with the urine storage bag any more, and the user can have the convenience of action, excellent confidentiality and free feeling, can not generate foreign body feeling, and can not generate the psychological pressure of embarrassment, shame, self-inferior and the like.

In addition, because the invention does not need to be matched with the urine storage bag, the urine can not flow back due to the pressure difference generated by the height change of the urine storage bag, and the retrograde infection can not occur naturally.

Furthermore, since the outer surface of the tube 10 of the present invention is coated with the hydrogel layer, the frictional force can be reduced, so as to easily insert into the urethra of the human body and reduce the adhesion of proteins, thereby reducing the irritation of the urethral mucosa, and the patient can also reduce the friction between the tube 10 and the urethra 91 during the movement, thereby reducing the discomfort of the patient during the use.

Referring to fig. 8-12, a second preferred embodiment of the present invention provides a portable urinary catheter 200, which comprises a tube 40, a check valve 50 and a cover 50, but the main difference between them is that:

in the present embodiment, as shown in fig. 108 to 10, the hollow sleeve body 51 of the cover 50 is formed by connecting a plurality of shrink rings 514 that can be mutually folded to be shortened and mutually unfolded to be lengthened.

The portable urinary catheter 200 provided by the embodiment is very suitable for female patients. When the female patient does not need to urinate, the cover 52 of the cover 50 can be combined with the hollow sleeve 51 (as shown in fig. 11) to close the cover 50, so as to prevent urine from leaking out, and the ring of the hollow sleeve 51 can be folded and shortened to maintain the convenience of movement. When the female patient needs to urinate, the ring 514 of the hollow sheath 52 can be pulled to expand and extend, and the cover 52 of the cover 50 can be opened from the hollow sheath 51 (as shown in fig. 12), so as to achieve the effect of urinating. And the stretched hollow sleeve body 52 can not be interfered by the posture change, so that the drained urine can be smoothly discharged into the toilet.

Of course, the present embodiment is also applicable to male patients, and other structures and features are the same as those of the previous embodiment, so please refer to the previous embodiment for understanding, which will not be described herein again.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all 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.

Claims

1. A portable urinary catheter, comprising:

a tube body, including a head end, a tail end and a body section connected between the head end and the tail end, the end face of the head end is recessed axially inwards to form a combining groove, the outer surface of the tail end is recessed radially inwards to form at least one urine guide hole, a urine delivery channel communicated with the combining groove to the urine guide hole is formed axially in the body section, a containing groove extends axially inwards from the bottom wall of the combining groove of the head end, a bag chamber surrounding the periphery of the urine delivery channel to the inner surface is formed in the body section at the inner position adjacent to the tail end, and a liquid delivery channel communicated with the containing groove to the bag chamber is formed axially in the body section;

the check valve is arranged in the containing groove of the pipe body and can be opened and closed in a reciprocating manner from a reversible position to a check position;

and the cover sleeve comprises a hollow sleeve body and a cover body, one end of the hollow sleeve body is a combination end, the other end of the hollow sleeve body is a covering end, the combination end of the hollow sleeve body is combined in the combination groove of the pipe body, and the cover body is detachably combined on the covering end of the hollow sleeve body so as to seal the ureter.

2. The portable urinary catheter of claim 1, wherein the tube is made of medical grade silicone, and is flexible and bendable, and the outer surface of the tube is coated with a hydrogel layer.

3. The portable urinary catheter of claim 1, wherein the check valve is a piston-type check valve.

4. The portable urinary catheter according to claim 1, wherein when the check valve is in the reversible position, distilled water is supplied from the outside through the check valve and then through the fluid infusion channel into the balloon chamber to cause the balloon chamber to expand into a water-ball shape, and the distilled water in the balloon chamber can flow out from the check valve to the outside through the fluid infusion channel, and when the check valve is in the check position, the distilled water in the balloon chamber cannot flow out from the check valve to the outside so as to maintain the water-ball shape formed by the balloon chamber.

5. The portable urinary catheter of claim 1, wherein the ureter is open when the cover is separated from the hollow sheath.

6. The portable urinary catheter of claim 1, wherein the cover sleeve further comprises a flexible connector connected between the hollow sleeve body and the cover body.

7. The portable urinary catheter as claimed in claim 1, wherein the hollow sheath has a concave snap-fit groove formed on the end surface of the cover end, and a convex snap-fit flange formed on the inner end surface of the cover for snap-fitting into the snap-fit groove when the cover is engaged with the cover end of the hollow sheath.

8. The portable urinary catheter of claim 1, wherein the hollow sheath body of the cover sheath can be shortened and lengthened.

9. The portable urinary catheter of claim 8, wherein the hollow sheath body of the cover sheath is formed by connecting a plurality of mutually foldable and contractible loops and mutually unfoldable and extendable loops.