The present disclosure relates to a medical liquid-injecting urinary catheter including a catheter body, an inflation tube, a urination port, an air injection port, and a medical liquid-injection port.

TECHNICAL FIELD

The present disclosure relates to a medical liquid-injecting urinary catheter, and more particularly, to a medical liquid-injecting urinary catheter that is configured to supply medical liquid to the urethra and bladder and is easily inserted into the urethra to prevent from causing pain.

BACKGROUND ART

As illustrated inFIG.1, urine excreted from the kidneys is transported to the bladder through the ureters and excreted out of the body through the urethra.

On the other hand, when patients have difficulties in voluntarily excreting urine, a flexible tube such as a catheter is inserted into the bladder through the urethra to excrete urine.

At this time, when there is a need for the prevention of bacterial contamination due to the catheter, topical anesthesia, antibiotics or topical anesthetics are injected from the outside through the catheter and supplied to the bladder or urethra.

The representative configuration of these catheters is disclosed in [Prior Art Document 1], and is schematically described with reference toFIGS.2A and2Bas follows.

As illustrated, the catheter of [Prior Art Document 1] includes an elongated tubular catheter body401having a distal end402and a proximal end403, and the excretion lumen404extends from the distal end402to the proximal end403through the tube414in the catheter body401.

When the excretion lumen404is used to excrete urine from the bladder of the patient by communicating with an opening or an eyelet405in the catheter body401at the distal end402of the catheter body401, urine may flow into the excretion lumen404through the eyelet405.

In addition, a sleeve portion406composed of a semi-permeable membrane is formed on the catheter body401.

An instillation lumen410extends from the catheter body401at the proximal end403.

The instillation lumen410is connected to the sleeve portion406by using a tube413extending along the longitudinal direction of the catheter body401.

Medical liquid injected into the sleeve portion406through the tube413continuously cleans the space around the urethra to prevent the formation of a biological membrane and subsequent bacterial infection.

That is, the medical liquid is supplied to the inner circumferential surface of the urethra through the sleeve portion406composed of a semi-permeable membrane, to thereby exert medicinal effects.

The fluid may include preservatives, antibiotics, or antimicrobials, and/or a combination thereof to prevent bacterial infection of urethra in contact with the catheter body.

An inflation fluid passes through an inflation lumen409and a tube412in the catheter body401to inflate a tube section408.

However, according to the [Prior Art Document 1], since the separately provided sleeve portion406is coupled to the catheter body401, there has no choice but to be discontinuous in terms of material and shape, and accordingly, the catheter has difficulties in being inserted into the urethra and pain caused by friction occurs in the insertion process, which increases inconveniences of the patient.

PRIOR ART DOCUMENT

DETAILED DESCRIPTION OF INVENTION

Technical Problem

The present disclosure is contrived for solving the problems of the prior art described above, and an object of the present disclosure is to provide a medical liquid-injecting urinary catheter which is easily inserted into the urethra and significantly reduces the occurrence of pain.

In addition, another object of the present disclosure is to provide a medical liquid-injecting urinary catheter capable of maximizing the medicinal effect of the supplied medical liquid.

Technical Solution to Problem

In order to achieve the above-described object, the medical liquid-injecting urinary catheter according to the present disclosure is characterized in that the medical liquid-injecting urinary catheter includesa catheter body that is flexible and has a hollow pipe shape;an inflation tube positioned around one end of the catheter body and spaced apart from the one end;a urination port connected to the other end of the catheter body and excreting urine out of the body;an air injection port connected to the other end of the catheter body and injecting air into the expansion tube; anda medical liquid-injection port connected to the other end of the catheter body and injecting a medical liquid,wherein,in a cross-sectional view of the hollow, a urination hole communicating with the urination port, an air injection hole communicating with the air injection port, and a medical liquid-injection hole communicating with the medical liquid-injection port are arranged to be separated from each other, anda plurality of medical liquid discharge outlets are formed on a circumferential surface of the catheter body in such a configuration that the plurality of medical liquid discharge outlets communicate with the medical liquid-injection hole and are spaced apart from each other in a direction in which the catheter body extends.

It is characterized in that a plurality of ring-shaped medical liquid distribution grooves extending in a circumferential direction of the catheter body are formed to be spaced apart from each other in the direction in which the catheter body extends, and the medical liquid discharge outlet is formed in each of the ring-shaped medical liquid distribution grooves.

Alternatively, it is characterized in that a spiral medical liquid distribution groove spirally extending in a circumferential direction of the catheter body is formed in the direction in which the catheter body extends, and the medical liquid discharge outlets are formed in the spiral medical liquid distribution grooves, respectively.

It is characterized in that the medical liquid discharge outlets are formed to be spaced apart from each other on a virtual line that is on the circumferential surface parallel to a cross-sectional center line of the catheter body, and in a cross-sectional view of the catheter body, the medical liquid discharge outlets are formed to be inclined with respect to a radial direction of the catheter body.

It is characterized in that the medical liquid discharge outlets are formed to be alternately inclined in opposite directions about the radial direction of the catheter body along a longitudinal direction of the catheter body.

It is characterized in that the medical liquid discharge outlets are arranged on a virtual spiral along the circumferential surface of the catheter body.

It is characterized in that, in a cross-sectional view of the catheter body, the catheter body includesa first tube shaped as a circle and having inner and outer circumferential surfaces,a second tube protruding from the inner circumferential surface of the first tube in an arc shape to form the air injection hole,and a third tube protruding from the inner circumferential surface of the first tube in an arc shape to form the medical liquid-injection hole and spaced apart from the second tube in the circumferential direction,whereinan inside of the first tube, which is formed at outsides of the second tube and the third tube, forms the urination hole.

Advantageous Effects of Invention

According to the present disclosure having the configurations described above, since there is provided a medical liquid-injecting urinary catheter including a catheter body that is flexible and has a hollow pipe shape, an inflation tube positioned around one end of the catheter body and spaced apart from the one end, a urination port connected to the other end of the catheter body and excreting urine out of the body, an air injection port connected to the other end of the catheter body and injecting air into the expansion tube, and a medical liquid-injection port connected to the other end of the catheter body and injecting a medical liquid wherein in a cross-sectional view of the hollow, a urination hole communicating with the urination port, an air injection hole communicating with the air injection port, and a medical liquid-injection hole communicating with the medical liquid-injection port are arranged to be separated from each other, and a plurality of medical liquid discharge outlets are formed on a circumferential surface of the catheter body in such a configuration that the plurality of medical liquid discharge outlets communicate with the medical liquid-injection hole and are spaced apart from each other in a direction in which the catheter body extends, there are advantages in that a predetermined function such as the topical anesthesia and the bladder cleaning is performed in a longitudinal direction of the urethra by applying the medical liquid passing through the medical liquid-injection port and the medical liquid-injection hole to the bladder or the urethra through the medical liquid discharge outlet, the medical liquid is easily inserted into the urethra, and the occurrence of pain is significantly reduced.

In addition, according to the present disclosure, since, in a cross-sectional view of the catheter body, the catheter body includes a first tube shaped as a circle and having inner and outer circumferential surfaces, a second tube protruding from the inner circumferential surface of the first tube in an arc shape to form the air injection hole, and a third tube protruding from the inner circumferential surface of the first tube in an arc shape to form the medical liquid-injection hole and spaced apart from the second tube in the circumferential direction, wherein an inside of the first tube, which is formed at the outsides of the second tube and the third tube, forms the urination hole, the obstruction of the hollow and topical pain caused by discontinuous bending of the catheter body may be prevented when the catheter body is arbitrarily bended, to thereby increase the durability.

In addition, according to the present disclosure, a plurality of ring-shaped medical liquid distribution grooves extending in a circumferential direction of the catheter body are formed to be spaced apart from each other in the direction in which the catheter body extends, and the medical liquid discharge outlet is formed in each of the ring-shaped medical liquid distribution grooves, so that the medical liquid discharged through the medical liquid discharge outlet moves along the ring-shaped medical liquid distribution groove, that is, along the circumferential direction of the catheter body and is uniformly applied to the inner circumferential surface of the urethra, which makes the medicinal effect exert uniformly and quickly.

In addition, according to the present disclosure, a spiral medical liquid distribution groove spirally extending in a circumferential direction of the catheter body is formed in the direction in which the catheter body extends, and the medical liquid discharge outlet is formed in each of the spiral medical liquid distribution grooves, so that the medical liquid discharged through the medical liquid discharge outlet moves along the spiral medical liquid distribution groove, that is, along the circumferential direction of the catheter body and is uniformly applied to the inner circumferential surface of the urethra, which makes the medicinal effect exert uniformly and quickly.

In addition, according to the present disclosure, the medical liquid discharge outlets are formed to be spaced apart from each other on a virtual line that is on the circumferential surface parallel to a cross-sectional center line of the catheter body, and in a cross-sectional view of the catheter body, the medical liquid discharge outlets are formed to be inclined with respect to a radial direction of the catheter body, so that the medical liquid discharged through the medical liquid discharge outlets move more quickly along the medical liquid distribution grooves, to thereby quickly transfer the medicinal effect to the urethra.

In addition, according to the present disclosure, the medical liquid discharge outlets are formed to be alternately inclined in opposite directions about the radial direction of the catheter body along a longitudinal direction of the catheter body, so that although the medical liquid cannot move well in one circumferential direction due to the unusual situation inside the urethra, the medical liquid may move in an opposite direction, which allows the normal application of the medical liquid.

In addition, according to the present disclosure, the medical liquid discharge outlets are arranged on a virtual spiral along the circumferential surface of the catheter body, so that in a cross-sectional view of the catheter body, the locations of the medical liquid discharge outlets through which the medical liquid is discharged intensely are distributed in the circumferential direction of the catheter body and the medical liquid is applied much more uniformly in the circumferential direction of the catheter body.

MODE OF INVENTION

As illustrated inFIGS.3to5, a medical liquid-injecting urinary catheter1000according to the present disclosure is provided for performing an involuntary urination function by making urine reach the bladder through the urethra of a patient, and includes a catheter body100that is flexible and has a hollow110pipe-shape, an inflation tube200positioned around one end of the catheter body100and spaced apart from the one end, a urination port300connected to the other end of the catheter body100to excrete urine out of the body, an air injection port400connected to the other end of the catheter body100and injecting air into the inflation tube200, and a medical liquid-injection port500connected to the other end of the catheter body100and injecting the medical liquid.

Accordingly, the medical liquid-injecting urinary catheter1000is easily inserted into the urethra and has an effect of significantly reducing the occurrence of pain in the insertion.

The urination port300is a component for excreting urine from the bladder, the air injection port400inflates the inflation tube200by injecting air to prevent the urination catheter1000from easily falling out, and the medical liquid-injection port500is a component for injecting a medical liquid such as topical anesthetics, bladder irrigation fluid or bladder cleanser into the bladder and/or urethra.

As illustrated inFIG.6, in a cross-sectional view of the hollow110, the hollow110is composed of a urination hole111communicating with the urination port300, an air injection hole112communicating with the air injection port400, and a medical liquid-injection hole113communicating with the medical liquid-injection port500, and the urination hole111, the air injection hole112, and the medical liquid-injection hole113are positioned in a separate state from each other.

To this end, in a cross-sectional view of the catheter body100, the catheter body100includes a first tube114shaped as a circle and having inner and outer circumferential surfaces, a second tube115protruding from the inner circumferential surface of the first tube114in an arc shape to form the air injection hole112, and a third tube116protruding from the inner circumferential surface of the first tube114in an arc shape to form the medical liquid-injection hole113and spaced apart from the second tube115in the circumferential direction, and the inside of the first tube114, which is formed at outsides of the second tube115and the third tube116, may form the urination hole111.

According to the configuration, even if the catheter body100is arbitrarily bent, it is possible for the fluid to be separated and flow through the urination hole111, the air injection hole112, and the medical liquid-injection hole113, and at the same time, the second tube115and the third tube116function as reinforcing ribs to maintain structural strength and durability.

That is, obstruction of the hollow110and topical pain caused by discontinuous bending of the catheter body100may be prevented, and durability may be increased.

On the circumferential surface of the catheter body100, a plurality of medical liquid discharge outlets120are formed in such a way that the medical liquid discharge outlets120are communicated with the medical liquid-injection hole113and positioned to be spaced apart from each other in a direction in which the catheter body100extends and therefore, the medical liquid, which passes through the medical liquid-injection port500and the medical liquid-injection hole113, is applied to the bladder or the urethra through the medical liquid discharge outlet120, to thereby perform a predetermined function such as topical anesthesia, bladder irrigation fluid or bladder cleanser.

In the drawings, the medical liquid-injection hole113is configured to include a first medical liquid-injection hole113ainto which topical anesthetics flow and a second medical liquid-injection hole113binto which a bladder irrigation fluid a bladder cleanser flows.

In addition, the third tube116is composed of a3_1tube116aforming the first medical liquid-injection hole113aand a3_2tube116bforming the second medical liquid-injection hole113b.

In relation to this, as illustrated inFIGS.3to5, the medical liquid-injection port500includes a first medical liquid-injection port500athrough which topical anesthetics are supplied and a second medical liquid-injection port500bthrough which a bladder irrigation fluid or a bladder cleanser is supplied.

However, the number of the medical liquid-injection holes113and the medical liquid-injection ports500may be one or three or more.

On the other hand, a plurality of ring-shaped medical liquid distribution grooves130extending in the circumferential direction of the catheter body100are formed to be spaced apart from each other in the direction in which the catheter body100extends, and the medical liquid discharge outlet120may be formed in each of the ring-shaped medical liquid distribution grooves130.

In this case, only a single medical liquid discharge outlet120may be arranged in the ring-shaped medical liquid distribution groove130to increase the flow rate, so that the discharged medical liquid is preferably induced to rapidly diffuse.

Accordingly, the medical liquid discharged through the medical liquid discharge outlet120moves along the ring-shaped medical liquid distribution groove130, that is, along the circumferential direction of the catheter body100and is uniformly applied to the inner circumferential surface of the urethra, which makes the medicinal effect exert uniformly and quickly.

As illustrated inFIG.11, the medical liquid discharge outlet120is positioned on both sides of the inflation tube200to supply the medical liquid not only to the urethra but also to the bladder.

The medical liquid discharge outlet120is formed in the medical liquid distribution groove130but is illustrated as if the medical liquid discharge outlet120were separated from the medical liquid dispersion groove130in order to check the relative size of diameters.

Reference numeral900indicates a medical liquid supply tank for supplying the medical liquid to the medical liquid-injection port500.

As another embodiment, as illustrated inFIGS.9and10, a spiral medical liquid distribution groove140spirally extending along the circumferential direction of the catheter body100is formed along the direction in which the catheter body100extends, and the medical liquid discharge outlet120may be formed in each of the spiral medical liquid distribution grooves140.

In this case, only a single medical liquid discharge outlet120is arranged along a single rotation of the spiral medical liquid distribution groove140, so that the discharged medical liquid is preferably induced to rapidly diffuse.

Accordingly, the medical liquid discharged through the medical liquid discharge outlet120moves along the spiral medical liquid distribution groove130, that is, along the circumferential direction of the catheter body100and is uniformly applied to the inner circumferential surface of the urethra, which makes the medicinal effect exert uniformly and quickly.

In addition, as illustrated inFIGS.3and9, the medical liquid discharge outlets120are formed to be spaced apart from each other on a virtual line that is on the circumferential surface parallel to the cross-sectional center line of the catheter body100, and in a cross-sectional view of the catheter body100, the medical liquid discharge outlets120may be formed to be inclined with respect to a radial direction of the catheter body100.

According to the configuration described above, the medical liquid discharged through the medical liquid discharge outlets120move more quickly along the medical liquid distribution grooves130and140, to thereby transfer the medicinal effect to the urethra quickly.

Moreover, as illustrated inFIG.7, the plurality of medical liquid discharge outlets120are formed to be alternately inclined in opposite directions about the radial direction of the catheter body100along the longitudinal direction of the catheter body100, so that although the medical liquid cannot move well in one circumferential direction due to the unusual situation inside the urethra, the medical liquid may move in an opposite direction, which allows the normal application of the medical liquid.

On the other hand, as illustrated inFIGS.8and10, a plurality of medical liquid discharge outlets120may be arranged on a virtual spiral along the circumferential surface of the catheter body100.

Accordingly, in a cross-sectional view of the catheter body100, the locations of the medical liquid discharge outlets120through which the medical liquid is discharged intensely are distributed in the circumferential direction of the catheter body100, so that the medical liquid may be applied much more uniformly in the circumferential direction of the catheter body100.

In this case, as illustrated inFIG.10, when the spiral medical liquid distribution grooves140are formed to be spirally extending in the circumferential direction of the catheter body100, the medical liquid discharge outlets120may be positioned on the spiral.

On the other hand, as illustrated inFIG.11, the cross-sectional area or diameter of the medical liquid discharge outlet120is configured to gradually increase from the other end of the catheter body100toward the inflation tube200, so that the injection amount decrease caused by pressure loss is preferably prevented when the medical liquid flows.

For example, the diameter of the medical liquid discharge outlet120may be set to continuously increase from 0.01 mm to 0.1 mm, and two or more medical liquid discharge outlets120are allowed to have the same diameter.

The diameter of the medical liquid discharge outlet120facing the bladder may remain the same as the diameter of the medical liquid discharge outlet120that is closest to the inflation tube200on the urethra side.

InFIG.5, a reference numeral181, which is not described, is a first penetrating hole formed in the catheter body100and communicating with the urination hole111, a reference numeral182is a second penetrating hole formed in the catheter body100and communicating with the air injection hole112, and a reference numeral183is a third penetrating hole formed in the catheter body100and communicating with the second medical liquid-injection hole113b.

Urine in the bladder is excreted to the outside through the first penetrating hole181, air is supplied to the inflation tube200through the second penetrating hole182, and the medical liquid such as bladder irrigation fluid or bladder cleanser, etc. is supplied through the third penetrating hole183.

The present disclosure described above is not limited to the embodiments described above and the accompanying drawings, and it will be clear to a person with ordinary skill in the art that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present disclosure.