WO2019160226A1

WO2019160226A1 - Vascular access port and method for manufacturing same

Info

Publication number: WO2019160226A1
Application number: PCT/KR2018/015354
Authority: WO
Inventors: 정권호
Original assignee: 주식회사 메디튤립
Priority date: 2018-02-13
Filing date: 2018-12-06
Publication date: 2019-08-22
Also published as: KR102085062B1; KR20190097836A

Abstract

The present invention provides a subcutaneous venous access port and a drug injection apparatus comprising same, wherein a location of the access port can be easily identified in a state where the access port is implanted in a human body. The subcutaneous venous access port is a subcutaneous venous access port which is implanted in a body and is then connected to a subcutaneous vein, and comprises a housing part, a cover membrane part, a conduit part, and a light source part. The housing part may include a receiving part which is formed therein and to which a drug is supplied. The cover membrane part is disposed at an upper end of the housing part and can seal an upper side of the receiving part. The conduit part is disposed at the housing part, and is inserted and connected to a subcutaneous vein to connect the subcutaneous vein and the receiving part. The light source part can emit light so that light is radiated to the outside through the cover membrane part.

Description

Vascular access port and method for manufacturing same

The present invention relates to a vascular access port and a method for manufacturing the same, and more particularly, to a vascular access port and a method for manufacturing the same, which reduces the number of components and a low proportion of metal materials.

Vascular access ports are devices that are inserted into the human body, particularly for injecting drugs, such as anticancer drugs, or for transfusion and blood collection.

Vascular access ports usually require intermittent or continuous infusion of anticancer drugs, antibiotics, blood products, parenteral nutrition, fluids, analgesics, difficulty in securing peripheral blood vessels, or long-term care in a home or medical institution. Is being inserted into. Subcutaneous vascular access ports are invisible in appearance, do not require disinfection even when not in use, can be swimming or bathing, and can be used for months or years.

The vascular access port is implanted inside the body and allows the drug to be supplied to the blood vessel through a catheter. The receiving portion provided inside the blood vessel access port and supplied with the drug is sealed with a self-sealing diaphragm, and the drug is supplied to the receiving part after penetrating the diaphragm with a needle.

Since the vascular access port is implanted inside the human body and is covered by the skin, it is difficult to visually identify the exact shape of the diaphragm and the area of the diaphragm from the outside. Therefore, the area where the diaphragm is fixed by the housing is reduced so that the needle can be easily inserted into the diaphragm, thereby increasing the exposed area of the diaphragm. This form may not be a problem when the supply pressure of the drug is small.

On the other hand, the vascular access port is also used to supply contrast medium for X-ray imaging and the like. However, the pressure when the contrast medium is supplied into the vessel access port is about 300 psi. Therefore, when the fixed area of the diaphragm is small, there is a problem that the diaphragm is pushed upward and separated from the housing when the pressure inside the receiving portion is increased.

Therefore, there is a need for a vessel access port in which the diaphragm is not separated even when the pressure of the feed liquid supplied inside the vessel access port is high.

In addition, the conventional blood vessel access port has a large number of components, and a high proportion of metal components in each component. In addition, since the assembling process includes a process of bending and bonding a metal material, there is a problem that it is difficult to increase the manufacturing process efficiency.

In addition, there is a problem that the proportion of the component of the metal material in each component is high, so that the degree of shading may be weakened during X-ray imaging or MRI imaging.

Prior art documents include Republic of Korea Patent Publication No. 2014-0091062 (2014.07.18. Publication).

The technical problem to be achieved by the present invention is to provide a subcutaneous vein access port and a drug injection device having the same easy to identify the position in the implanted state.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention is a vascular access port which is implanted in a living body and connected with blood vessels, the upper part of which is open and has a body part having a receiving portion supplied with a drug and the blood vessel, A housing part protruding outward from a side portion of the body part so that the tube is coupled and integrally formed with a connection part having a passage hole communicating with the receiving part; A diaphragm part coupled to an upper part of the housing part to seal an upper part of the receiving part; And pressurizing the upper edge of the diaphragm to expose the central portion of the diaphragm to the upper side, to fix the diaphragm, and to provide a blood vessel access port including a cover portion coupled to the housing so as to be accommodated inside the housing. .

Here, the cover portion and the housing portion may be fusion bonded.

In an embodiment of the present invention, the housing portion may further include a reinforcement portion formed to correspond to the bottom surface of the accommodation portion to be in close contact with the bottom surface of the accommodation portion.

The reinforcing part may have a hardness greater than that of the needle that is inserted through the diaphragm to supply the drug.

In addition, the reinforcement part may be inserted into the body part and integrally formed with the body part.

In an embodiment of the present invention, the body portion protrudes in a circumferential direction with a first diameter on a lower portion of the outer circumferential surface of the body portion, and includes a first stepped portion with a first fusion protrusion protruding in the circumferential direction. Can be.

The body portion may further include a second stepped portion protruding in a second diameter smaller than the first diameter in a circumferential direction on an upper portion of the outer circumferential surface of the body portion, and a second fusion protrusion protruding in the circumferential direction. can do.

In an embodiment of the present invention, an upper surface of the first stepped part may be wider than an upper surface of the second stepped part.

The number of the first fusion protrusions may be greater than the number of the second fusion protrusions.

In an embodiment of the present invention, the cover portion is formed in the lower portion of the inner circumferential surface of the cover portion in the circumferential direction may be combined with the first stepped portion, and may include a third stepped portion fused to the first fusion projections. .

In addition, the cover part may further include a fourth stepped portion formed in the upper portion of the inner circumferential surface of the cover part along the circumferential direction, coupled to the second stepped portion, and the second fusion protrusion being fused.

In an embodiment of the present invention, the body portion has a coupling slit formed along the height direction of the body portion in the first step portion, the cover portion is coupled to the coupling slit when the cover portion is coupled to the housing portion It may have a coupling protrusion protruding to the inner peripheral surface.

In an embodiment of the present invention, the diaphragm portion is located above the receiving portion, the upper surface includes a diaphragm body exposed upward through the cover portion, and a side ring protruding in the circumferential direction on the outer peripheral surface of the diaphragm body. can do.

The first press-in groove is inserted into the first groove formed in the circumferential direction on the upper portion of the body portion and the first protrusion formed in the circumferential direction on the upper portion of the side ring; This can be formed.

In an embodiment of the present invention, the lower end portion of the first press-fit portion may be formed to extend below the lower surface of the diaphragm body and may have a cross-sectional area larger than that of the first groove.

In an embodiment of the present invention, the upper part of the side ring is formed in the upper circumferential direction of the second press-in portion to be pressed into the second groove formed along the circumferential direction on the inner circumferential surface upper portion of the cover portion; A second press groove may be formed in which the second protrusion is inserted.

In an embodiment of the present invention, the cover portion may have a cutout groove formed to penetrate the connection portion when coupled with the housing portion.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a method of manufacturing a blood vessel access port implanted in a living body and connected to the blood vessel, the upper portion is formed with an open portion and the body portion having a receiving portion to supply the drug inside; And a housing part forming step of integrally forming a housing part in which a connection part having a flow path hole protruding outward from the side of the body part and having a passage hole communicating with the receiving part is formed so that the tube connected to the blood vessel is coupled; A first coupling step of coupling the diaphragm portion to the upper portion of the housing portion to seal the upper portion of the accommodation portion; A second coupling step of pressing the upper edge of the diaphragm to expose the central portion of the diaphragm to the upper side and simultaneously fixing the diaphragm and coupling the cover portion from the upper side to the lower side of the housing so as to be accommodated inside the housing; And, it provides a method of manufacturing a blood vessel access port comprising a fusion bonding step of fusion bonding the cover portion and the housing portion.

In an embodiment of the present invention, in the housing part forming step, the reinforcing part is formed to correspond to the bottom surface of the receiving portion and is inserted through the diaphragm to have a hardness greater than the hardness of the needle to supply the drug to the Is molded to be in close contact with the bottom surface of the receiving portion, the reinforcing portion may be inserted into the body portion is molded integrally with the body portion.

In the embodiment of the present invention, in the forming of the housing portion, the body portion is formed to protrude in the first diameter along the circumferential direction on the lower portion of the outer peripheral surface of the body portion, the first fusion projection protrudes along the circumferential direction on the upper surface A first stepped portion and a second stepped portion protruding from a second diameter smaller than the first diameter along the circumferential direction on an upper portion of the outer circumferential surface of the body portion, and a second fusion protrusion protruding along the circumferential direction on an upper surface thereof; It can be molded to have.

In the embodiment of the present invention, in the fusion bonding step, when the ultrasonic wave is applied to the cover portion and the housing portion, the first step is formed in the circumferential direction recessed in the lower portion of the inner peripheral surface of the cover step The second fusion protrusion may be fused to the fourth stepped portion formed in the circumferential direction on the upper portion of the inner circumferential surface of the cover portion.

According to an embodiment of the present invention, the blood vessel access port is composed of two parts, a housing part and a cover part in which a body accommodating a diaphragm part is molded into the body part, a connection part, and a reinforcement part by insert injection, thereby reducing the number of components. Since the housing part and the cover part are ultrasonically bonded, the manufacturing process can be simplified.

In addition, according to the embodiment of the present invention, since the cover portion and the housing portion are made of a resin material, and only the reinforcement portion is made of a metal material, the ratio of the metal material can be lowered, so that the shadows during X-ray imaging or MRI imaging can be reduced. The degree of weakening can be effectively reduced.

It is to be understood that the effects of the present invention are not limited to the above effects, and include all effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view showing a vessel access port according to an embodiment of the present invention.

2 and 3 are exploded perspective view showing a blood vessel access port according to an embodiment of the present invention.

Figure 4 is a cross-sectional view showing a vessel access port according to an embodiment of the present invention.

Figure 5 is an exploded cross-sectional view showing a vessel access port according to an embodiment of the present invention.

6 is a flowchart illustrating a method of manufacturing a blood vessel access port according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. Also includes the case where In addition, when a part is said to "include" a certain component, this means that unless otherwise stated, it may further include other components rather than excluding the other components.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms “comprise” or “have” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

1 is a perspective view showing a vascular access port according to an embodiment of the present invention, Figures 2 and 3 is an exploded perspective view showing a vascular access port according to an embodiment of the present invention, Figure 4 is an embodiment of the present invention 5 is a cross-sectional view illustrating a vessel access port according to an example, and FIG. 5 is an exploded cross-sectional view illustrating a vessel access port according to an embodiment of the present invention.

1 to 5, the blood vessel access port may include a housing part 100, a diaphragm part 200, and a cover part 300.

First, the housing part 100 may have a body part 110 and a connection part 180.

The housing part 100 may be molded of a resin material including polysulfone, and the body part 110 and the connection part 180 may be integrally formed.

The body part 110 may form a body of the housing part 100 and may have a receiving part 111.

The receiving part 111 may be formed in a container shape in which an upper portion is opened, and a drug may be supplied inside.

The connection part 180 may protrude outward from the side of the body part 110. The connection part 180 may have a passage hole 181 formed therein in the bamboo direction of the connection part 180, and the passage hole 181 may communicate with the accommodation part 111. The connection unit 180 may be coupled to a tube (not shown) connected to the blood vessel.

The connection unit 180 may be inserted into a tube (not shown) connected to the blood vessel, and through this, the drug supplied to the accommodation unit 111 may be supplied to the tube through the passage hole 181.

The blood vessel access port may include a tightening part 400, and a coupling hole 410 may be formed through the tightening part 400 in the axial direction.

The tightening unit 400 may be coupled to the connection unit 180, and the connection unit 180 and the tube connected to the connection unit 180 may be inserted into the coupling hole 410. The tightening unit 400 may press the tube connected to the connecting unit 180 in the direction of the connecting unit 180 so that the tube is firmly fixed between the connecting unit 180 and the tightening unit 400.

In addition, the body part 110 may have a first step part 112 and a second step part 116.

The first step part 112 may protrude to a lower portion of the outer circumferential surface of the body part 110 with a first diameter D1, and the first step part 112 may be formed along the circumferential direction.

The first fusion protrusion 114 may protrude from the upper surface 113 of the first stepped part 112, and the first fusion protrusion 114 may be formed along the circumferential direction.

The second step portion 116 may protrude to a second diameter D2 smaller than the first diameter D1 on the outer circumferential surface of the body portion 110, and the second step portion 116 may have a circumferential direction. Can be formed accordingly.

The second fusion protrusion 118 may protrude from the upper surface 117 of the second stepped portion 116, and the second fusion protrusion 118 may be formed along the circumferential direction.

The upper surface 113 of the first stepped part 112 may be formed wider than the upper surface 117 of the second stepped part 116, and the number of the first fusion protrusions 114 is greater than that of the second fusion protrusions 118. It may be more than the number. For example, two first fusion protrusions 114 may be formed and one second fusion protrusion 118 may be formed. This is considered to widen the contact area with the cover part 300 through which the fusion area with the cover part 300 is increased may cause a high coupling force.

In addition, the body unit 110 may have a coupling slit 125. Coupling slit 125 may be formed along the height direction of the body portion 110 in the first step portion (112). The outer circumferential surface of the second step portion 116 may be exposed by the coupling slit 125. Coupling slit 125 may be formed in a pair on both sides with respect to the connection portion 180.

In addition, a first groove 121 and a first protrusion 122 may be formed in the upper portion of the body 110 along the circumferential direction.

In addition, the housing part 100 may have a reinforcement part 150. The reinforcement part 150 may be formed in a shape corresponding to the bottom surface of the accommodation part 111, and may be provided to be in close contact with the bottom surface of the accommodation part 111. In more detail, the reinforcement part 150 may be integrally formed with the body part 110 by insert injection when the housing part 100 is molded.

In the housing part 100 of the insert injection state, the side surface of the reinforcement part 150 may be inserted into the inside of the body part 110, and thus, the reinforcement part 150 may be the body part 110. May not be separated.

The reinforcement part 150 may have a hardness greater than the hardness of the needle for supplying the drug to the accommodation part 111. The reinforcement part 150 may be formed of a metal material, for example, titanium.

In addition, at least one of a heat treatment layer and a curing coating layer may be further provided on the surface of the reinforcement part 150.

The heat treatment layer may be an ion nitride heat treatment layer. The ion nitriding heat treatment layer may be generated by an ion nitriding heat treatment method which is one of pollution-free heat treatment methods without using cyan salt. In addition, the heat treatment layer may be a nano heat treatment layer.

In addition, the curing coating layer may be a coating layer harmless to the human body, it may be a layer generated using a metal material. In addition, the curing coating layer may be a nano coating layer.

In general, since the hardness of the needle is greater than the hardness of titanium, when the bottom surface of the receiving portion 111 is scratched at the lower end of the needle to be inserted, a burr may be formed on the bottom surface, and such burrs are formed by blood vessels. There is a problem that can flow into. Since the reinforcement 150 has a hardness greater than that of the needle, it can prevent the above problems and increase safety.

The diaphragm 200 may have a diaphragm body 210 and a side ring 230.

The diaphragm body 210 may form a body of the diaphragm 200. The diaphragm body 210 may be located at the upper portion of the accommodating part 111 to seal the upper part of the accommodating part 111.

The side ring 230 may protrude along the circumferential direction on the outer circumferential surface of the diaphragm body 210.

A first press portion 231 may be formed below the side ring 230, and the first press portion 231 may be press-fitted into the first groove 121 of the body portion 110.

The lower end portion of the first press-fit portion 231 may be formed to extend below the lower surface 211 of the diaphragm body 210. In addition, the first press-fit part 231 may be formed to have a cross-sectional area larger than that of the first groove 121. Accordingly, the first press-in portion 231 may be pressed deeper and more firmly into the first groove 121, through which the diaphragm 200 may be more firmly coupled to the housing part 100. have.

In addition, a first pressurized groove 232 may be formed in the lower portion of the side ring 230, specifically, at the lower portion of the portion where the diaphragm body 210 and the side ring 230 are connected. When the first press portion 231 is press-fitted into the first groove 121, the first protrusion 122 may be inserted into the first press groove 232.

As such, since the housing part 100 and the diaphragm part 200 are double-fitted to each other, higher coupling force may occur.

In addition, a second press-fit part 233 may be formed on the upper portion of the side ring 230.

In addition, a second press-fit groove 234 may be formed in the upper portion of the side ring 230, specifically, in the upper portion of the portion where the diaphragm body 210 and the side ring 230 are connected.

The diaphragm 200 may be self sealing, and various materials may be used without being particularly limited as long as it is a material capable of self sealing. For example, the diaphragm 200 may be made of an elastomer such as silicone, silicone rubber, latex, or the like.

The cover part 300 may be coupled to the housing part 100 to accommodate the housing part 100 therein, and the cover part 300 may press the upper edge of the diaphragm part 200 to open the diaphragm part 200. Can be fixed

The cover part 300 may have an open hole 301 at an upper portion thereof, and an upper surface of the diaphragm body 210 may be exposed to the open hole 301. The needle may be inserted through the exposed diaphragm body 210, and the drug may be supplied to the accommodating part 111 in a state where the needle is positioned in the accommodating part 111.

The cover part 300 may have a third step part 310 and a fourth step part 311.

The third step part 310 may be formed under the inner circumferential surface of the cover part 300. The third step part 310 may be formed in the inner circumferential surface of the cover part 300 along the circumferential direction, and may be formed to correspond to the first step part 112 of the housing part 100 so as to correspond to the first step part 112. ) May be combined.

The fourth step part 311 may be formed on the inner circumferential surface of the cover part 300. The fourth step part 311 may be recessed in the circumferential direction on the inner circumferential surface of the cover part 300, and may be formed to correspond to the second step part 116 of the housing part 100 so as to correspond to the second step part 116. ) May be combined.

When the third step part 310 is coupled to the first step part 112, the first fusion protrusion 114 may contact the third step part 310, and the fourth step part 311 may be connected to the second step part 310. When coupled to the stepped portion 116, the second fusion protrusion 118 may be in contact with the fourth stepped portion 311.

In addition, by applying ultrasonic vibration to a portion where the cover portion 300 and the housing portion 100 are in contact with each other, the cover portion 300 and the housing 100 are melted and welded so as to be welded. The part 100 may be fusion coupled. In particular, the first fusion protrusions 114 and the second fusion protrusions 118 are effectively melted by ultrasonic vibration, so that the first fusion protrusions 114 are more effectively fused with the third step portion 310 and the second fusion protrusions. 118 may be more effectively fused to the fourth step portion 311.

In addition, the cover part 300 may have a cutting groove 302 and a coupling protrusion 306.

The cutting groove 302 may be formed to penetrate the connection unit 180. The cutting groove 302 may be formed so that the lower portion of the cover part 300 is opened, and through this, the connection part 180 is cut when the cover part 300 is coupled from the upper side to the lower side of the housing part 100. It can be inserted into the groove 302.

The coupling protrusion 306 may protrude from the inner circumferential surface of the cover part 300. The coupling protrusion 306 may be formed to correspond to the coupling slit 125 formed in the housing part 100, and the coupling slit when the cover part 300 is coupled from the upper side to the lower side of the housing part 100. From the upper side of the 125 may be inserted into the coupling slit 125 to be coupled.

As the coupling protrusion 306 is coupled to the coupling slit 125, the cover part 300 may be prevented from moving in the circumferential direction of the housing part 100, and the housing part 100 and the cover part 300 are firmly secured. Can be combined.

In addition, the cover part 300 may have a second groove 321 and the second protrusion 320 formed in the circumferential direction on the inner circumferential surface. In the process in which the cover part 300 is coupled to the housing part 100, the second press-fit part 233 of the diaphragm part 200 may be press-fitted into the second groove 321, and the second protrusion 320 may be a diaphragm. It may be inserted into the second pressing groove 234 of the part 200. Since the cover part 300 and the diaphragm part 200 are double-fitted to each other, a higher coupling force may occur.

As such, the second groove 321 and the second protrusion 320 of the cover part 300 are coupled to the second press portion 233 and the second press portion groove 234 of the diaphragm 200, respectively, so that the injection needle Even when a strong pressure occurs in the receiving portion 111 in the process of injecting the drug through the diaphragm body 210 can be suppressed to rise upward through the opening hole 301 of the cover portion 300, further The diaphragm 200 may be effectively prevented from escaping through the opening hole 301.

In addition, the cover part 300 may have a plurality of through holes 303, through the through holes 303 may be coupled to a coupling element such as a suture for firmly fixing the vascular access port to some tissues of the living body. have.

The cover part 300 may be formed of the same material as the housing part 100.

Hereinafter, a method of manufacturing a blood vessel access port will be described.

As further shown in FIG. 6, the method of manufacturing a blood vessel access port may include a housing part forming step (S510), a first joining step (S520), a second joining step (S530), and a fusion joining step (S540). Can be.

Housing part forming step (S510) is the outer side to the side of the body portion 110 so that the upper portion is formed open and the body portion 110 having a receiving portion 111 to supply the drug inside, and the tube connected to the blood vessel is coupled It may be a step of integrally forming the housing portion 100 is formed protruding to the connection portion 180 having a flow path hole 181 is formed in communication with the receiving portion 111.

In the housing part forming step (S510), the reinforcement part 150 is formed to correspond to the bottom surface of the accommodating part 111 and has a hardness greater than that of the needle that is inserted through the diaphragm 200 to supply the drug. ) May be molded to be in close contact with the bottom surface of the receiving portion. In this case, the reinforcement part 150 may be insert molded into the body part 110 to be integrally formed with the body part 110.

In addition, in the housing part forming step (S510), the body part 110 is protruded to a first diameter D1 along the circumferential direction under the outer circumferential surface of the body part 110, and has a circumferential direction on the upper surface 113. Accordingly, the first stepped portion 112 protruding from the first fusion protrusion 114 and the second diameter D2 smaller than the first diameter D1 in the circumferential direction on the upper circumferential surface of the body portion 110. Protrudingly formed, the upper surface 117 may be molded to have a second stepped portion 116 protrudingly formed along the circumferential direction.

The first coupling step S520 may be a step of coupling the diaphragm part 200 to the upper part of the housing part 100 so that the upper part of the accommodating part 111 is sealed.

In the first coupling step S520, the first press-in part 231 of the diaphragm part 200 may be press-fit into the first groove 121 of the housing part 100, and the first press-in groove of the diaphragm part 200. The first protrusion 122 may be inserted into 232. Through this, the diaphragm 200 may be firmly coupled to the housing 100.

The second coupling step S530 presses the upper edge of the diaphragm 200 so that the central portion of the diaphragm 200 is exposed upward, and at the same time, fixes the diaphragm 200 and the housing 100 is inward. The cover unit 300 may be coupled from the upper side of the housing unit 100 to the lower side to be accommodated in the housing unit 100.

In the second coupling step S530, the coupling protrusion 306 of the cover part 300 may be inserted into and coupled to the coupling slit 125 of the housing part 100, and through this, the cover part 300 may be circumferentially directed. It can be constrained so as not to rotate.

The second protrusion 320 of the cover part 300 may be inserted into the second press-in groove 234 of the diaphragm 200, and the diaphragm part may be formed in the second groove 321 of the cover part 300. The second press-fit part 233 of the 200 may be press-fitted.

Fusion bonding step (S540) may be a step of fusion bonding the cover portion and the housing portion.

In the fusion bonding step (S540), when ultrasonic waves are applied to the cover part 300 and the housing part 100, the first fusion protrusion 114 is circumferentially disposed below the inner circumferential surface of the cover part 300 by ultrasonic vibration. The second stepped portion 310 is immersed accordingly, and the second fusion protrusion 118 is fused to the fourth stepped portion 311 recessed along the circumferential direction on the inner circumferential surface of the cover part 300. Can be. Through this, the cover part 300 and the housing part 100 may be more firmly coupled.

The vessel access port according to the present invention includes a housing part 100 in which a body accommodating the diaphragm part 200 therein is integrally formed with the body part 110, the connection part 180, and the reinforcement part 150 by insert injection. And the cover part 300, the number of components may be reduced, and the manufacturing process may be simplified because the housing part 100 and the cover part 300 are ultrasonically bonded.

In addition, since the cover part 300 and the housing part 100 are made of a resin material and only the reinforcement part 150 is made of a metal material, the ratio of the metal material can be lowered. As a result, the degree of shading can be effectively reduced.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the invention is indicated by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the invention.

In the blood vessel access port according to the present invention, the body accommodating the diaphragm portion therein is composed of two parts, a housing portion and a cover portion in which the body portion, the connection portion, and the reinforcement portion are integrally formed through insert injection, and thus the number of components is reduced, and the housing portion and Since the cover part is ultrasonically bonded, the manufacturing process is simple, and thus it can be widely used as a subcutaneous vein access port used for patients who need long-term treatment at home or in medical institutions.

Claims

A vascular access port implanted in a living body and connected with a blood vessel,

A body part having an upper part of which is open and a drug supplying part therein, and a connecting part having a passage hole protruding outward to a side part of the body part so as to couple a tube connected to the blood vessel and communicating with the receiving part A housing part formed of;

A diaphragm part coupled to an upper part of the housing part to seal an upper part of the receiving part; And

Pressing the upper edge of the diaphragm portion to expose the central portion of the diaphragm portion at the same time while fixing the diaphragm portion, and includes a cover portion coupled to the housing portion so that the housing portion is received inside,

And the cover portion and the housing portion are fusion-coupled.
The method of claim 1,

The housing portion is formed to correspond to the bottom surface of the receiving portion is in close contact with the bottom surface of the receiving portion, has a reinforcement having a hardness greater than the hardness of the needle to be inserted through the diaphragm portion to supply the drug,

The reinforcement part is inserted into the body portion is a blood vessel access port, characterized in that formed integrally with the body portion.
The method of claim 1,

The body part

A first stepped portion protruding from the outer circumferential surface of the body portion in a first diameter along a circumferential direction, and having a first fusion protrusion protruding along the circumferential direction on an upper surface thereof;

The upper part of the outer peripheral surface of the body portion protrudes in a second diameter smaller than the first diameter in the circumferential direction, the upper surface has a blood vessel approach, characterized in that having a second stepped protrusion protruding along the circumferential direction port.
The method of claim 3,

The upper surface of the first stepped portion is formed wider than the upper surface of the second stepped portion,

The number of the first fusion projections is vascular access port, characterized in that more than the number of the second fusion projections.
The method of claim 3,

The cover part

A third stepped portion formed in the lower portion of the inner circumferential surface of the cover part in a circumferential direction, coupled to the first stepped portion, and the first fusion protrusion being fused;

And a fourth stepped portion formed in an upper portion of the inner circumferential surface of the cover part in the circumferential direction, coupled to the second stepped portion, and the second fusion protrusion being fused.
The method of claim 5,

The body portion has a coupling slit formed along the height direction of the body portion in the first stepped portion,

The cover portion has a blood vessel access port, characterized in that the cover has a projection projecting on the inner peripheral surface to be inserted into the coupling slit when coupled to the housing portion.
The method of claim 1,

The diaphragm portion

Located in the upper portion of the receiving portion, the upper surface and the diaphragm body exposed to the upper side through the cover portion,

Has a side ring protruding in the circumferential direction on the outer peripheral surface of the diaphragm body,

The first press-in groove is inserted into the first groove formed in the circumferential direction on the upper portion of the body portion and the first protrusion formed in the circumferential direction on the upper portion of the side ring; A blood vessel access port, characterized in that it is formed.
The method of claim 7, wherein

The lower end portion of the first press-fit portion is formed to extend to the lower side than the lower surface of the diaphragm body, blood vessel access port, characterized in that it is formed to have a cross-sectional area larger than the cross-sectional area of the first groove.
The method of claim 7, wherein

The second press-in part which is pressed into the second groove formed in the circumferential direction on the inner circumferential surface upper portion of the cover portion, and the second protrusion which is formed in the circumferential direction on the inner circumferential surface upper portion of the cover portion is inserted in the upper portion of the side ring A blood vessel access port, characterized in that the indentation groove is formed.
The method of claim 1,

The cover portion has a blood vessel access port characterized in that it has a cutting groove formed so that the connection portion penetrates when combined with the housing portion.
A method of manufacturing a blood vessel access port implanted in a living body and connected to a blood vessel,

A body portion having an upper portion formed open and receiving a drug supplied therein is formed, and a connecting portion having a flow path formed to protrude outward from the side portion of the body portion so as to couple the tube connected to the blood vessel and communicate with the accommodation portion. A housing part forming step of integrally molding the housing part;

A first coupling step of coupling the diaphragm portion to the upper portion of the housing portion to seal the upper portion of the accommodation portion;

A second coupling step of pressing the upper edge of the diaphragm to expose the central portion of the diaphragm to the upper side and simultaneously fixing the diaphragm and coupling the cover portion from the upper side to the lower side of the housing so as to be accommodated inside the housing; And

Method of manufacturing a blood vessel access port comprising a fusion bonding step of fusion bonding the cover portion and the housing.
The method of claim 11,

In the housing part forming step,

The reinforcement part is formed to correspond to the bottom surface of the receiving portion and has a hardness greater than that of the needle that is inserted through the diaphragm portion to supply the drug, and is formed to be in close contact with the bottom surface of the receiving portion. Method of manufacturing a blood vessel access port characterized in that the insert is injected into the portion and molded integrally with the body portion.
The method of claim 11,

In the housing part forming step,

The body portion is formed in the lower portion of the outer circumferential surface of the body portion protruding in a first diameter along the circumferential direction, the upper surface and the first stepped portion protruding in the circumferential direction;

It is formed so as to protrude in a second diameter smaller than the first diameter in the circumferential direction on the upper portion of the outer peripheral surface of the body portion, the upper surface is formed so as to have a second stepped portion protruding formed in the circumferential direction Method of manufacturing a blood vessel access port.
The method of claim 13,

In the fusion bonding step,

When ultrasonic waves are applied to the cover part and the housing part, the first fusion protrusion is fused to a third step portion recessed in a circumferential direction below the inner circumferential surface of the cover part, and the second fusion protrusion is formed on the cover part. A method of manufacturing a blood vessel access port, characterized in that it is fused to a fourth stepped portion formed in the circumferential direction on the upper portion of the inner peripheral surface.