WO2022220332A1

WO2022220332A1 - Intravenous tube catheter for preventing leakage and thrombus formation in catheter tube

Info

Publication number: WO2022220332A1
Application number: PCT/KR2021/007238
Authority: WO
Inventors: 주재욱; 주진환
Original assignee: 주재욱; 주진환
Priority date: 2021-04-12
Filing date: 2021-06-10
Publication date: 2022-10-20
Also published as: KR102257208B1

Abstract

The present invention relates to an intravenous tube catheter for preventing thrombus formation and blood leakage, which is implemented to prevent thrombus formation and protect a practitioner and an operator from viral infection caused by the backflow of blood while the catheter is inserted into the patient's body. The intravenous tube catheter comprises: a catheter tube; a soft seal rod for preventing blood from flowing into a catheter hub; and a backflow prevention cap to which one end of the soft seal rod is installed, and which allows the soft seal rod to be sequentially inserted through the catheter hub and the catheter tube while covering an opening formed through the rear end of the catheter hub, so as to prevent blood leakage and thrombus formation in the catheter tube.

Description

Intravenous tubing catheter to prevent thrombus formation and leakage in the catheter tube

The present invention relates to an intravenous tube catheter for preventing the formation of blood clots and leakage of blood in the catheter tube, and more particularly, preventing the formation of blood clots in the gel nose of a catheter inserted into a patient's venous blood vessel and preventing blood leakage. Intravenous tube catheter to prevent thrombus formation and leakage in the catheter implemented to protect the operator and operator from infection by virus or other diseases and to maintain the venous line by keeping it for 72 hours is about

In general, syringes are the most frequently used procedure in the medical industry. According to a 2014 WHO survey, general syringes are frequently reused in medical institutions, centered on low-income people such as poor countries and small and medium-sized countries.

Due to this, there is a risk of spreading fatal diseases of patients, such as 33,800 people infected with HIV, 1.7 million people with hepatitis B virus, and 315,000 people with hepatitis C virus, due to reuse of general syringes.

Furthermore, in the case of Ebola virus, which is transmitted through blood contact, it can be a fatal risk for infected people, with a fatality rate of 50 to 90% during infection.

In addition, in the case of practitioners and practitioners who are exposed to various diseases caused by blood, the prevalence of being pierced by a needle of a syringe is high, and special attention is required because they are always exposed to the risk of infection by blood.

In the case of an existing intravenous tube catheter, as shown in FIG. 1 1) a catheter 700 having a soft needle (710, also called 'zelco') and a hard stainless steel needle (810, hereinafter called medical use) After puncturing the patient's vein by combining a stylet, which is a perforation needle, 2) separating the stylet from the catheter, 3) making a luer injection cap for non-implantable blood vessel connection (aka, 'heparin cap') ') in the order of installation.

After removing the fluid from the conventional intravenous catheter, immediately after attaching the heparin cap, injecting about 3cc of saline or heparin is a way to prevent blood clots from stagnating in the hub and gel nose of the catheter. It is commonly used as a means.

On the other hand, since the gel nose of the catheter has a gel nose inserted into the blood vessel, there is no way to visually check the blood state in the gel nose of the catheter, so the contents flow out or the blood flows back up and a blood clot is formed in the gel nose. has a

At this time, there is a problem in that the patient's blood inevitably flows back or leaks into the catheter from the gel nose of the catheter already inserted into the patient in any form to the catheter hub, whether or not there is an infusion prescription. In order to prevent this problem, the operator or the operator has an inconvenient problem in that the operator or the operator uses the finger of the other hand to separate the medical puncture needle while pressing the gel nose of the catheter inserted into the patient with the finger of one hand. In addition, even when a heparin cap is installed with or without an infusion prescription, the operator presses the gel nose of the catheter with the finger of one hand and rotates the heparin cap several times with the other hand to mount it on the catheter hub. For this reason, when the pre-lubricated needle with attached luer 800 is separated from the catheter 700 , the patient's blood leaks through the catheter 700 , and an operator such as a doctor or nurse comes in contact with the leaked blood and infection occurs. There are problems that could be

In addition, in the case of a catheter of a conventional syringe, there is a problem in that it is impossible to visually check whether there is blood or thrombus in the gel nose area because the gel nose of the catheter is inserted into the patient's vein.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the derivation of the present invention or acquired in the process of derivation of the present invention, and it cannot be said that it is necessarily a known technique disclosed to the general public before the filing of the present invention. .

One aspect of the present invention is to prevent backflow and leakage of blood from the catheter when inserting a catheter into a patient or injecting a large number of injections, as well as preventing the formation of thrombi, thereby preventing the operator from infection with viruses or other diseases and The basic task is to provide an intravenous tube catheter for preventing blood clot formation and blood leakage in the gel nose, which is implemented to protect the operator.

In addition, it is another task to provide a catheter that fundamentally prevents blood inflow and thrombus formation at the front end of the catheter's gel nose, and at the same time doubles blocks the backflow or leakage of the patient's blood through the backflow prevention part. .

In addition, when the anti-reflux cap is mounted on the catheter, another task is to provide convenience to the operator by rotating the heparin cap by 90 degrees to 180 degrees with both hands so that the operator is not in a hurry.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

An intravenous tube catheter for blood clot formation and blood leakage prevention according to an embodiment of the present invention guides the movement of the needle of the medical perforating needle for the medical perforation needle penetrating the skin and at the same time, by the needle a catheter tube inserted into the pierced skin; a catheter hub supporting the catheter tube; a soft seal rod inserted through the passage of the catheter tube to prevent blood from flowing into the catheter hub through the catheter tube when the needle is separated from the catheter tube; and a backflow prevention cap on which one end of the soft seal rod is installed, and the soft seal rod is sequentially inserted through the catheter hub and the catheter tube while covering the rear end opening of the catheter hub.

In one embodiment, the backflow prevention cap may include a cap body formed in a cylindrical shape; a cover installed to cover the rear end opening of the cap body; and a hub fastening part installed on the front end of the inner circumferential surface of the cap body to fasten the rear end of the catheter hub.

In one embodiment, the catheter hub may include: a hub body formed in a cylindrical shape; a catheter flange protruding outward along the outside of the rear end of the hub body; and at least one catheter protrusion installed along the outer circumferential surface of the catheter flange and fastened to the hub fastening part.

In one embodiment, the hub fastening portion is formed with a front and rear width corresponding to the front and rear thickness of the catheter protrusion, the fastening groove is formed to extend around the inner peripheral surface of the front end of the cap body; and at least one protrusion insertion hole extending from the front surface of the cap body to the fastening groove to induce insertion of the catheter protrusion to the fastening groove.

In an embodiment, the soft seal rod may be fixed to the front surface of the cover by molding.

In one embodiment, the soft seal rod may be detachably fixed to the front surface of the cover.

In one embodiment, the diameter of the soft seal rod may be formed equal to or greater than the inner diameter of the catheter tube.

In one embodiment, the venous tube catheter for preventing the formation of blood clots and leakage of blood according to another embodiment of the present invention is formed of a soft-melting rubber material having elasticity, and the a backflow prevention unit installed inside the catheter hub to prevent the blood flowing into the catheter hub through the catheter tube from flowing backward to the outside of the catheter hub when the needle is separated from the catheter tube; and a magnetic valve formed of a material that forms magnetism and installed on the catheter hub while facing the backflow prevention part, and opens and closes the backflow prevention part to prevent blood from moving through the backflow prevention part; may further include have.

In one embodiment, the backflow prevention unit, the tube body is formed in a cylindrical shape corresponding to the shape of the inner space of the catheter hub is installed inside the catheter hub; and a tube head extending from the front end of the tube body in a ladder shape.

In one embodiment, the magnetic valve unit, a first magnetic body formed of a permanent magnet (Permanent Magnet) for forming magnetism and installed on one side of the catheter hub while facing the tube head; and forming a symmetrical structure with the first magnetic body, and being installed on the other side of the catheter hub while facing the first magnetic body with the tube head interposed therebetween, the surface opposite to the first magnetic body is the first magnetic body It may include a;

In one embodiment, the magnetic valve unit is in close contact with the first magnetic body and the second magnetic body with the tube head interposed therebetween by the attractive force formed between the first magnetic body and the second magnetic body, the inner side of the tube head Close the passage, overcome the attractive force formed between the first magnetic material and the second magnetic material, and a connector is inserted and inserted through the inner passage of the tube head to widen the gap between the first magnetic material and the second magnetic material Accordingly, the tube head may be opened to inject the treatment liquid into the human body, and after the treatment liquid is injected into the human body, the soft seal may be inserted into the catheter tube to prevent blood from leaking into the catheter.

In one embodiment, the first magnetic body, a first magnet formed in the form of a disc and seated on one side of the catheter hub; a second magnet formed in a disk shape having a smaller diameter than the first magnet and installed on one surface of the first magnet facing the tube head; and a first adhesive drape installed around the first magnet and the second magnet to prevent rust from occurring in the first magnet and the second magnet by the moisture contained in the blood. can

In an embodiment, the first magnet may be installed such that 2/3 of the diameter faces the tube head, and the remaining 1/3 of the diameter is exposed to the front end of the tube head.

In one embodiment, the first magnetic body and the second magnetic body are in close contact with each other when closing the inner passage of the tube head to close the front inlet of the tube head, and then the front end of the tube head of each first magnet It can be configured to rotate so that each front end is close to each other by 1/3 of the diameter exposed to the .

In one embodiment, the catheter hub may include: a first seating hole penetrating through one side of the hub body and formed so that the first magnetic body can be seated; a second seating hole penetrating through the other side of the hub body so that the second magnetic body can be seated; a second adhesive drape installed to surround the outer surface of the hub body; and a magnet shielding foil installed to surround the outer surface of the second adhesive drape in order to block a magnetic field formed from the magnetic valve part.

In one embodiment, the hub fastening part may further include a rubber packing ring, and the cap body may be made of a hard or soft material.

In one embodiment, the cover is made of a soft material, and the soft seal

The soft seal rod protrusion is formed at the front end, and the backflow prevention cap is inserted into the catheter fastening protrusion to be detachably rotated forward and reverse, and may be detachably rotated at an angle of 90 degrees to 180 degrees to be detachable.

In one embodiment, the soft seal rod may be made of the same material as the gelcoin catheter tube or a soft material.

According to one aspect of the present invention described above, it is possible to fundamentally prevent reflux or leakage of blood and the formation of thrombus in the gel nose, and to maintain (keep) the venous line for 72 hours while the catheter is inserted into the patient's body. Health can be improved by improving the safety of all operators, patients, and recipients from viruses and diseases, and by reducing the number of injections, patient pain is reduced, and blood leakage from the catheter is prevented by preventing blood leakage. has the effect of preventing

In addition, as it is manufactured in the same standard as the existing general commercial catheter, there is no difficulty in training for use, and there is an effect of shortening the time required for intravenous injection.

In addition, since it can be used in various fields in places such as the medical industry and hospitals, it is possible to provide effects such as reduction of work stress of operators and practitioners and reduction of manpower at work sites.

In addition, when the operator injects the fluid or when the backflow prevention cap is installed, both hands can be comfortably used without rushing.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range apparent to those skilled in the art from the description below.

1 is a view showing a method of using a conventional catheter.

2 is a diagram schematically showing the configuration of an intravenous tube catheter for preventing thrombus formation and leakage of blood in the gel nose according to an embodiment of the present invention.

FIG. 3 is a view showing the backflow prevention cap of FIG. 2 .

4 is a view showing a fastening structure between the catheter hub and the backflow prevention cap of 3;

5 is a greatly enlarged view showing a connection relationship between the catheter hub and the magnetic valve of FIG. 3 .

6 is a greatly enlarged view showing the opening and closing of the backflow prevention unit by the magnetic valve unit of FIG. 3 .

FIG. 7 is a greatly enlarged view showing the backflow prevention unit of FIG. 3 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0016] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

The present invention relates to a catheter that prevents thrombogenesis and leakage by fundamentally preventing blood inflow into the gel nose of a catheter inserted into a venous blood vessel when an intravenous catheter is inserted into the body with or without a fluid prescription, and the catheter of the present invention Specifically, if the operator or practitioner needs to administer antibiotics or other drugs to the patient several times a day at intervals of several hours without a fluid prescription, it is necessary to receive the fluid prescribed today and repeat it tomorrow. In this case, the catheter of the present invention can maintain the venous line for 3 days when the patient is inevitably going out after removing the infusion in the state where there is a prescription for the fluid.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

Referring to Figure 2, the intravenous tube catheter 10 for preventing the formation of blood clots and leakage of blood in the gel nose according to an embodiment of the present invention, the gel coin catheter tube 100, the catheter hub 200, It includes a soft seal rod 310 and a backflow prevention cap 400 (also referred to as a 'structure-modified heparin cap').

The catheter tube (100, also called 'gel nose') is formed in the form of a soft-melting tube, and is applied to the skin through the inner space 110 of the inner diameter of the catheter tube, that is, the inner space 110 of the inner diameter of the gel nose. A treatment liquid inserted into the skin penetrated by the needle 810 and injected into the patient's vein while guiding the movement of the needle 810 (see FIG. 1), which is a stylet of the penetrating ISO standard needle unit 800 The back is guided into a vein and is supported by a catheter hub 200 .

The catheter hub 200, supports the catheter tube 100, will also have to be manufactured in the ISO standard so that the ISO standard connector 710 can be inserted.

In one embodiment, the catheter hub 200 may include a hub body 210 , a catheter flange 220 , and a catheter fastening protrusion 230 .

The hub body 210 is formed in an ISO standard cylindrical shape, and the catheter flange 220 may be formed at the rear end.

The catheter flange 220 is formed to protrude outward along the outside of the rear end of the hub body 210 and is sealed due to the connector 910 being inserted and blocked by a certain depth or more, and the catheter fastening protrusion 230 is formed along the outer circumferential surface. can be configured.

The catheter fastening protrusion 230 is installed along the outer circumferential surface of the catheter flange 220 and is inserted through the protrusion insertion hole 432 formed in the hub fastening part 430 to be fastened to the fastening groove 431. can

That is, the catheter fastening protrusion 230 is seated in the fastening groove 431 through the protrusion insertion hole 432 and then moved along the fastening groove 431, so that the catheter hub 200 and the backflow prevention cap 400 are It can be configured to be fastened. Here, the backflow prevention cap 400 may further include a rubber packing ring (not shown) to prevent and seal the leakage of blood. Here, when the catheter hub 200 and the backflow prevention cap 400 are connected and assembled due to the rubber packing ring, blood leakage can be prevented or sealed.

The soft seal rod 310 is made of a soft material or made of the same material as the catheter tube (gel nose) material, and is inserted through the inner space 110 passage of the inner diameter of the gel nose of the catheter tube 100, the catheter hub. Prevents blood from flowing into (200).

In one embodiment, the soft seal rod 310 may be fixedly fixed by molding on the front surface of the cover 420 , and may be configured to be detachably fixed to the front surface of the cover 420 .

In one embodiment, the soft seal rod 310 is formed to be larger than the diameter of the front end of the gel nose, and the soft seal rod protrusion 320 may be formed. Through this, the blood does not flow back or leak in the catheter tube (gel nose), thereby preventing the occurrence of blood clots in the gel nose, and has a function of not puncturing blood vessels.

In one embodiment, the diameter of the soft seal rod 310 is the same as or larger than the inner diameter 110, which is the inner space of the gel nose of the catheter tube 100 so that it can be inserted in close contact with the inside of the catheter tube 100. can be

The backflow prevention cap 400 has one end of the soft seal rod 310 installed, and the soft seal rod 310 is sequentially inserted through the catheter hub 200 and the catheter tube 100 at the same time as the rear end opening of the catheter hub 200 . may be configured to cover the

In one embodiment, the backflow prevention cap 400 may include a cap body 410, a cover 420, a hub fastening part 430, and a rubber packing ring (reference numeral not shown), and a backflow prevention cap ( 400) may be made of a soft or hard material. Here, the backflow prevention cap is inserted into the catheter flange 220 and rotated forward and backward at an angle of 90 degrees to 180 degrees to be mounted and sealed, and the backflow prevention cap 400 may further include a rubber packing ring in the backflow prevention cap can

The cap body 410 is made of a soft or hard material as a material, and is formed in a cylindrical shape to cover the rear end opening of the catheter hub 200, and is fastened to the rear end of the catheter hub 200 to the catheter hub 200. close the

* The cover 420 is made of a soft material, is installed to cover the opening at the rear end of the cap body 410, and may be configured such that the soft seal rod 310 is installed at the front end. Due to this, the injection of various treatment solutions of the cover 420 can be repeatedly performed with a syringe.

The hub fastening part 430 may be installed at the front end of the inner circumferential surface of the cap body 410 to fasten the rear end of the catheter hub 200 .

In an embodiment, the hub fastening part 430 may include a fastening groove 431 and at least one protrusion insertion hole 432 .

The fastening groove 431 is formed with a front and rear width corresponding to the front and rear thickness of the catheter protrusion 230, and a rubber packing ring is inserted into the fastening groove 431, and the inner circumferential surface of the front end of the cap body 410 is rounded. extension is formed. Due to this, the combination of the catheter hub and the non-return cap allows the blood to be sealed and firmly fixed at the same time.

The protrusion insertion hole 432 is formed to extend from the front surface of the cap body 410 to the fastening groove 431 to induce the insertion of the catheter protrusion to the fastening groove 431 .

The method of using the intravenous tube catheter 10 for preventing the formation of blood clots and leakage of blood in the gel nose according to an embodiment of the present invention having the configuration as described above is as follows.

1) First, the catheter tube 100 and the catheter hub 200, a pre-lubricated needle with an attached luer 800 having a hard stainless steel needle 810, is inserted into the patient's venous blood vessel in a coupled state 2) After removing the catheter tube of the stylet, that is, separating and removing it from the gel nose 3) The structure in which the soft seal rod 310 and the backflow prevention cap 400 are combined is inserted into the catheter tube 100 and the catheter hub 200 to make it detachable.

Accordingly, the intravenous tube catheter 10 for preventing the formation of blood clots and leakage of blood in the gel nose according to an embodiment of the present invention having the configuration as described above is a catheter hub 200 made of a soft material. Heparin or cell line may be injected into the cover 420 , and the fastened catheter may be kept and used for 72 hours.

3 is a diagram schematically showing the configuration of an intravenous tube catheter for preventing blood thrombus formation and blood leakage in the gel nose according to another embodiment of the present invention.

Referring to FIG. 3, a catheter for an intravenous tube for preventing blood clot formation and leakage of blood in the gel nose according to another embodiment of the present invention is a catheter tube 100, a catheter hub 200, and a soft seal rod 310. ), a backflow prevention cap 400 , a backflow prevention part 500 including an adapter 530 made of a hard material, and a magnetic valve part 600 .

Here, the catheter tube 100 , the catheter hub 200 , the soft seal rod 310 , and the backflow prevention cap 400 are the same as the components of FIG. 2 , and thus descriptions thereof will be omitted. However, here, the adapter 530 made of a hard material is configured to have the same shape as the connector 910 of the ISO standard to prevent and seal the blood from leaking.

In one embodiment, the catheter hub 200a according to another embodiment includes a hub body 210, a catheter flange 220, a catheter fastening protrusion 230, a first seating hole 240, a second seating hole ( 250 ), a second adhesive drape 260 , and a magnet shielding foil 270 .

Here, the hub body 210 , the catheter flange 220 , and the catheter fastening protrusion 230 are the same as the components of FIG. 2 , and thus descriptions thereof will be omitted.

The first seating hole 240 is formed to pass through one side of the hub body 210 so that the first magnetic body 610 can be seated while facing the second seating hole 250 .

The second seating hole 250 is formed to pass through the other side of the hub body 210 so that the second magnetic body 620 can be seated while facing the first seating hole 240 .

The second adhesive drape 260 is installed to surround the outer surface of the hub body 210 .

The magnet shielding foil 270 is installed to surround the outer surface of the second adhesive drape 260 in order to minimize or eliminate the influence of the magnetic field with respect to the medical equipment affected by the imaging magnetic field, such as MRI.

In this case, the magnet shielding foil 270 may wrap the outer surface of the second adhesive drape 260 in one or two layers.

When the connector 910 or the soft seal 310 is separated from the gelcoin catheter tube 100, the backflow prevention unit 500 is configured to prevent blood flowing into the catheter hub 200 through the catheter tube 100 through the catheter hub ( 200) is installed inside the catheter hub 200 to prevent leakage, and the inlet formed at the front end is opened and closed by a magnetic valve unit 600 to be described later. Here, the material of the backflow prevention unit 500 is made of rubber having elasticity, and the adapter 530 may be inserted through an interference fit.

One end of the adapter 530 is configured to form a taper (in one embodiment, an angle of 6 degrees) at a predetermined angle corresponding to the inner diameter of the backflow prevention part 500 of the elastic rubber, and the other end of the adapter is the backflow prevention part It may be configured to form an adapter flange portion (reference numeral not shown) identical to the outer diameter of 500 .

The adapter 530 may be configured to be mounted with an interference fit into the catheter hub 200 . Due to this, the adapter 320 is not artificially separated from the catheter hub 200 .

The magnetic valve part 600 is formed of a material that forms magnetism (eg, a permanent magnet, etc.) and is installed in the catheter hub 200 while facing the backflow prevention part 500 , and the backflow prevention part 500 is installed in the catheter hub 200 . It opens and closes to prevent backflow of blood through the backflow prevention unit 500 .

In an embodiment, the magnetic valve unit 600 may include a first magnetic body 610 and a second magnetic body 620 .

The first magnetic body 610 forms a symmetrical structure with the second magnetic body 620, and is formed of a magnetic material to face the tube head 520 (see FIG. 6) and one side of the catheter hub 200, That is, it is mounted and installed in the first mounting hole 240 .

The second magnetic body 620 forms a symmetrical structure with the first magnetic body 610 and faces the first magnetic body 610 with the tube head 520 interposed therebetween, the other side of the catheter hub 200, that is, the second 2 is installed to be seated in the mounting hole 250 , and a surface opposite to the first magnetic material 610 is formed of a material that forms a magnetism having a polarity opposite to that of the opposite surface of the first magnetic material 610 .

A method of using the intravenous tube catheter 20 for preventing blood thrombus formation and blood leakage according to another embodiment of the present invention having the configuration as described above is as follows.

1) First, a pre-lubricated needle with attached luer 800 having a needle 810 that is a hard stylet is inserted into the venous blood vessel of the patient in a state in which the catheter tube 100 and the catheter hub 200 are coupled. , 2) only the pre-lubricated needle with attached luer separates the 500, 3) At this time, the backflow prevention unit 500 is operated by the magnetic valve unit 600 so that blood is leaked to the outside of the catheter hub 200 4) The structure in which the ISO standard connector 910 and the rubber connector 920 are combined is inserted to the end of the backflow prevention unit 500, 5) the patient's When the treatment liquid is injected into a vein, 6) when the injection of the treatment liquid is completed, the structure in which the connector 910 and the rubber connector 920 are coupled is separated from the catheter hub 200, 7) the magnetic valve part again The backflow prevention unit 500 is operated by the 600 to block the blood from leaking out of the catheter hub 200, and 8) the backflow prevention cap 400 connected to the soft seal rod 310 is attached to the catheter flange ( 220) and the catheter fastening protrusion 230 to prevent double leakage of blood, 9) Next, using a structure in which a connector 910 and a rubber connector 920 of another ISO standard are combined. Another treatment solution can be injected into the patient's vein, and 10) repeating the above 8) steps to prevent blood leakage.

As a result, the backflow prevention unit 500 and the magnetic valve unit 600 described above in FIG. 2 function as a check valve to double block the leakage of blood.

The intravenous tube catheter 10 for preventing the formation of blood clots and leakage of blood according to another embodiment of the present invention having the configuration as described above, prevents the formation of blood clots and inserts the catheter into the patient's body It can be maintained (keeping) for 72 hours in the inflamed state, thereby improving the stability of the operator, patient, and beneficiary from various viruses and diseases, thereby improving health, reducing pain due to reduced number of injections, and reducing blood from the catheter. By preventing leakage, it prevents infection due to leakage of blood, etc. As it is manufactured in the same standard as the existing general commercial catheter, there is no difficulty in use training, and it shortens the time required for intravenous injection and can be used in various fields Thus, it is possible to provide effects such as reduction of work stress of operators and practitioners and reduction of manpower at work sites.

5 is a view showing a connection relationship between the catheter hub and the magnetic valve of FIG. 3 .

Referring to FIG. 5 , the first magnetic body 610 includes a first magnet 611 and a second magnet 612 .

Here, the second magnetic body 620 is a configuration that forms a symmetrical structure with the first magnetic body 610, which will be described later, and includes the first magnet 611 and the second magnet 612 of the first magnetic body 610. As can be equally applied, the description will be omitted to avoid duplication of description.

The first magnet 611 is formed in the form of a disk and is installed on one side of the catheter hub 200 , that is, the first seating hole 240 , and the second magnet 612 is installed on one surface.

In this case, the diameter of the first seating hole 240 may be the same as or slightly larger than the diameter of the first magnet 611 so that the first magnet 611 can be seated.

In an embodiment, the first magnet 611 may be formed to have a diameter of 4 mm and a thickness of 0.5 mm.

The second magnet 612 is formed in a disk shape having a smaller diameter than the first magnet 611 and is installed on one surface of the first magnet 611 facing the tube head 520 .

In an embodiment, the second magnet 612 may be formed to have a diameter of 3 mm, which is a smaller diameter than the first magnet 611 , and a thickness of 0.5 mm.

In an embodiment, the first magnet 611 and the second magnet 612 may be formed of a permanent magnet.

In one embodiment, the first magnet 611 may be installed such that 2/3 of the diameter faces the tube head 520 , and the remaining 1/3 of the diameter is exposed to the front end of the tube head 520 .

Accordingly, the first magnetic body 610 and the second magnetic body 620 are in close contact with each other when closing the inner passage of the tube head 520 to close the front end inlet of the tube head 520, and then shown in FIG. As shown, each front end may be rotated so that the front end of each of the first magnets 611 is in close contact with each other by 1/3 of the diameter exposed to the front end of the tube head 520 (in the case of (b) of FIG. 6 ). .

The first magnetic body 610 having the above-described configuration may further include a first adhesive drape 613 (Adhesive Drape).

The first adhesive drape 613 (Adhesive Drape) is separated from the first seating hole 240 while preventing rust from occurring in the first magnet 611 and the second magnet 612 due to moisture contained in blood. The first magnet 611 and the second magnet 612 are wrapped around and installed to prevent it from happening.

The magnetic valve unit 600 having the configuration as described above, the first magnetic body 610 and the second magnetic body 620 by the attractive force formed between the first magnetic body 610 and the second magnetic body 620 is a tube Close the inner passage of the tube head 520 with the head 520 interposed therebetween (FIG. 6 (b)), overcome the attractive force formed between the first magnetic body 610 and the second magnetic body 620, and As the connector 910 is inserted through the inner passage of the tube head 520 and the gap between the first magnetic body 610 and the second magnetic body 620 is widened, the tube head 520 may be opened (FIG. 6). of (a)).

On the contrary, when the connector 910 is pulled out through the inner passage of the tube head 520 and removed, the magnetic valve unit operates to seal the tube head, and then insert the backflow prevention cap connected with the soft seal to the end of the gelcoin catheter tube. If the catheter tube is fundamentally prevented from leaking blood, the magnetic valve part blocks the blood once more, so the blood is double blocked.

FIG. 7 is a view showing a backflow preventing unit of FIG. 5 .

Referring to FIG. 7 , the backflow prevention unit 500 includes a tube body 510 , an adapter 530 , and a tube head 520 .

The tube body 510 is formed in a cylindrical shape corresponding to the shape of the inner space of the catheter hub 200 and is installed inside the catheter hub 200 , and a tube head 520 is formed at the front end. Here, the adapter 530 may be configured to be coupled to the tube body 510 by interference fit.

The tube head 520 is formed to extend from the front end of the tube body 510 in the form of a ladder.

In one embodiment, the inner diameter of the tube body 510 may be formed to be the same as the outer diameter of the tube head 520 or the outer diameter of the connector 910 for injection of the treatment liquid inserted into the tube head 520 to be configured to be in close contact.

In one embodiment, the inner diameter of the tube body 510 may be formed to be smaller than the outer diameter of the connector 910 inserted inwardly so that the connector 910 inserted therein can be inserted in close contact.

In an embodiment, the tube body 510 and the tube head 520 may be formed of a rubber material having soft-melting elasticity.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

The present invention fundamentally prevents backflow or leakage of blood, thrombus formation in the gel nose, and maintains (keeps) the venous line for 72 hours while the catheter is inserted into the patient's body, thereby protecting operators and patients from various viruses and diseases. It is possible to improve health by improving the stability of the back, and by reducing the number of injections, it reduces patient pain and prevents blood leakage from the catheter, thereby providing convenience to the patient or operator. In this way, it is an invention with industrial applicability because it has sufficient market and business potential in the market applied to catheters together with syringes in general hospitals as well as practically and clearly practicable.

Claims

a catheter tube inserted into the skin penetrated by the needle while guiding the movement of the needle of the needle unit penetrating the skin;

a catheter hub supporting the catheter tube;

a soft seal rod inserted through the passage of the catheter tube to prevent blood from flowing into the catheter hub through the catheter tube when the needle is separated from the catheter tube; and

One end of the soft seal rod is installed, the soft seal rod is sequentially inserted through the catheter hub and the catheter tube, and at the same time, a backflow prevention cap detachable from the rear end opening of the catheter hub; thrombus formation and leakage in the catheter tube, including Intravenous tube catheter for prevention.
According to claim 1, wherein the backflow prevention cap,

a cap body formed in a cylindrical shape;

a cover installed to cover the rear end opening of the cap body; and

A venous tube catheter for preventing thrombus formation and leakage in the catheter tube, including; a hub coupling part installed at the front end of the inner circumferential surface of the cap body to fasten the rear end of the catheter hub.
The method of claim 2, wherein the catheter hub,

a hub body formed in a cylindrical shape;

a catheter flange protruding outward along the outside of the rear end of the hub body; and

At least one catheter fastening protrusion installed along the outer circumferential surface of the catheter flange and fastened to the hub fastening part; comprising, a catheter for intravenous tube for preventing thrombus formation and leakage in the catheter tube.
The method of claim 3, wherein the hub fastening portion,

a fastening groove formed with a front and rear width corresponding to the front and rear thickness of the catheter fastening protrusion, and extending around the inner peripheral surface of the front end of the cap body; and

At least one protrusion insertion hole extending from the front surface of the cap body to the fastening groove and inducing insertion of the catheter protrusion to the fastening groove.
According to claim 1, wherein the soft seal,

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, which is fixed by molding on the front surface of the cover.
The method of claim 5, wherein the soft seal,

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, which is detachably fixed to the front surface of the cover.
According to claim 6, The diameter of the soft seal rod,

Formed larger than the inner diameter of the catheter tube, an intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube.
According to claim 1, wherein the catheter hub,

It is formed of a rubber material with soft-melting elasticity, and when the needle is separated from the catheter tube, the blood flowing into the catheter hub through the catheter tube flows backward to the outside of the catheter hub. a backflow prevention unit that includes a hard adapter to prevent it from being installed in the catheter hub; and

The catheter further comprising a; is formed of a magnetic material and is installed on the catheter hub while facing the backflow prevention part, and opens and closes the backflow prevention part to prevent blood from moving through the backflow prevention part; Intravenous tube catheter to prevent thrombus formation and leakage in the tube.
The method of claim 8, wherein the backflow prevention unit,

a tube body formed in a cylindrical shape corresponding to the shape of the inner space of the catheter hub and installed inside the catheter hub; and

A tube head extending from the front end of the tube body in the form of a ladder.
The method of claim 9, wherein the magnetic valve unit,

a first magnetic body formed of a permanent magnet forming magnetism and installed on one side of the catheter hub while facing the tube head; and

It forms a symmetrical structure with the first magnetic body, and is installed on the other side of the catheter hub while facing the first magnetic body with the tube head interposed therebetween, wherein the surface opposite to the first magnetic body faces the first magnetic body A second magnetic material formed of a permanent magnet (Permanent Magnet) that forms a magnetic polarity opposite to that of the surface; Containing, Intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube.
The method of claim 10, wherein the magnetic valve unit,

The first magnetic body and the second magnetic body are in close contact with the tube head interposed therebetween by the attractive force formed between the first magnetic body and the second magnetic body to close the inner passage of the tube head, and the first magnetic body and the first magnetic body and the second magnetic body Overcoming the attractive force formed between the second magnetic bodies, the connector is inserted through the inner passage of the tube head to open the tube head as the gap between the first magnetic body and the second magnetic body is widened, and the connector is removed An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, after which a soft seal is inserted into the catheter tube.
The method of claim 10, wherein the first magnetic body,

a first magnet formed in a disk shape and seated on one side of the catheter hub;

a second magnet formed in a disk shape having a smaller diameter than the first magnet and installed on one surface of the first magnet facing the tube head; and

Containing, including; An intravenous tubing catheter to prevent thrombus formation and leakage in the catheter tube.
The method of claim 12, wherein the first magnet,

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, wherein 2/3 of the diameter is opposite to the tube head, and the remaining 1/3 of the diameter is exposed to the front end of the tube head.
The method of claim 13, wherein the first magnetic body and the second magnetic body,

When the inner passage of the tube head is closed, the front ends are in close contact with each other to close the front end inlet of the tube head, and then the front ends of each first magnet are in close contact with each other by 1/3 of the diameter exposed to the front end of the tube head An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, which can be rotated as much as possible.
15. The method of claim 14, wherein the catheter hub comprises:

a first seating hole penetrating through one side of the hub body so that the first magnetic body can be seated;

a second seating hole penetrating through the other side of the hub body so that the second magnetic body can be seated;

a second adhesive drape installed to surround the outer surface of the hub body; and

In order to block a magnetic field formed from the magnetic valve part, a magnet shielding foil wrapped around the outer surface of the second adhesive drape and installed; further comprising, thrombus formation and leakage prevention in the catheter tube Intravenous tube catheter for
16. The method according to any one of claims 8 to 15, wherein a soft seal is inserted into the catheter tube, and a backflow prevention cap equipped with the soft seal is fastened to the catheter flange. For intravenous tube catheters.
According to claim 2, wherein the hub fastening portion,

Intravenous tube catheter for preventing the formation of blood clots and leakage in the catheter tube, further comprising a rubber packing ring.
According to claim 2, wherein the cap body,

An intravenous tube catheter made of a hard or soft material to prevent clot formation and leakage in the catheter tube.
According to claim 2, wherein the cover,

An intravenous tube catheter made of soft material to prevent clot formation and leakage in the catheter tube.
The method of claim 5, wherein the soft seal,

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, having a soft seal protrusion formed at the front end.
The method of claim 2, wherein the backflow prevention cap,

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, which is inserted into the catheter fastening protrusion and rotated forward and backward.
The method of claim 21, wherein the backflow prevention cap comprises:

An intravenous tube catheter for preventing thrombus formation and leakage in the catheter tube, which is detachable by rotating it forward and backward at an angle of 90 degrees to 180 degrees.
The method of claim 5, wherein the soft seal,

An intravenous tube catheter made of the same material or softer material as the gelcoin catheter tube to prevent thrombus formation and leakage in the catheter tube.