KR20230000257U - Spike port for medical infusion solution bag - Google Patents

Abstract

The present invention relates to a spike port for an infusion bag, more specifically, a port body having a drainage tube inserted into the infusion bag, and a leak blocking member installed at the lower entrance of the drainage tube to block leakage of the infusion, wherein the The leakage blocking member is composed of a coupling support ring inserted into and supported by the outer diameter of the lower end of the drainage tube, and an inlet blocking cap made of elastomer material coupled to the coupling support ring to block the lower entrance of the drainage tube. It relates to a spike port for an infusion bag that can fundamentally block the flow of the drug remaining in the infusion bag after the spike is removed from the infusion tube out of the infusion tube.

Description

Spike port for medical infusion solution bag}

The present invention relates to a spike port for an infusion bag, more specifically, a port body having a drainage tube inserted into the infusion bag, and a leak blocking member installed at the lower entrance of the drainage tube to block leakage of the infusion, wherein the The leakage blocking member is composed of a coupling support ring inserted into and supported by the outer diameter of the lower end of the drainage tube, and an inlet blocking cap made of elastomer material coupled to the coupling support ring to block the lower entrance of the drainage tube. It relates to a spike port for an infusion bag that can fundamentally block the flow of the drug remaining in the infusion bag after the spike is removed from the infusion tube out of the infusion tube.

In general, infusions such as physiological saline solution and glucose used in hospitals that treat patients or perform surgeries are stored in infusion containers having a certain standard, and these infusion containers include glass infusion bottles and synthetic resin infusion solutions. It is largely distinguished by a hundred. Among them, the infusion bottle has a hygienic advantage, but has a disadvantage in that it is heavy, so in recent years, an infusion bag made of polyethylene, which is light in weight and easy to handle, is widely used.

When injecting the fluid stored in the infusion bag into the patient's body, an infusion line having a spike is usually used. At this time, a port installed in the infusion bag to insert the spike is called a spike post. The spike port may be directly sealed to the infusion bag, or after sealing the connection tube to the infusion bag, the spike port may be inserted into the connection tube.

In the spike port, a rubber valve supporting the spike is usually installed. However, concerns have always been raised that rubber fragments harmful to the human body may occur in the process of inserting the spike in the conventional spike port in which the rubber tip is installed. A twist-off type spike port was developed to address these concerns.

Attached Figure 1 quotes a twist-off type spike port introduced in Utility Model Registration No. 20-0443796 (March 06, 2009), the port body 20 and the separation cap 30, and enabling them to be separated. It is configured to include a cutting groove 40 that connects. The port body 20 includes an injection pipe 21 inserted into the tube 11 of the infusion bag 10, a blocking film 22 blocking the inside of the injection pipe 21, and the injection pipe 21 ) has a support piece 23 protruding from the outer circumference to both sides, and a locking jaw 24 protruding from the lower end of the support piece 23.

In addition, the separation cap 30 is a hollow body integrally injection-molded on the upper end of the pot body 20, and the handle 32 protruding in the same direction as the support piece 23 and the upper end of the hollow body are heat-sealed. It consists of one stricture sealing part (33). Therefore, when in use, the separation cap 30 is separated using the cut groove 40, and then a spike is inserted into the injection pipe 21 to drain the fluid.

However, in the conventional spike port as shown in FIG. 1, when the spike is separated from the infusion tube 21 after the infusion of the infusion is completed, the drug remaining in the infusion bag 10 flows out through the infusion tube 21. There was a problem coming out. So, Utility Model Registration No. 20-0452452 (February 21, 2011) introduces a drainage port for an infusion bag equipped with a separate auxiliary stopper to block the injection tube so that the drug does not flow out after the drainage is finished and the spike is removed. there is.

However, in the case of the drainage port introduced in Utility Model Registration No. 20-0452452, it has not been put to practical use because the drug already flows out of the injection pipe in a short moment until the auxiliary plug is closed as soon as the spike is removed from the injection pipe.

In order to solve this problem, the inventors of the present inventors, as shown in Attached Figure 2 in Utility Model Registration No. 20-0492817 (December 09, 2020), tear fluid made of a soft film at the bottom of the drain pipe 11 of the port body 10 A drain port for a spike in which a blocking member 40 is installed has been proposed. For reference, the port body 10 and the drain pipe 11 of FIG. 2 correspond to the port body 20 and the injection pipe 21 of FIG. 1, respectively.

Registered Utility Model No. 20-0443796 (March 06, 2009) Registered Utility Model No. 20-0452452 (February 21, 2011) Registered Utility Model No. 20-0492817 (December 09, 2020)

The spike port of FIG. 2 is convenient to use and has a hygienic effect because the leakage blocking member 40 blocks leakage of the infusion solution even if the spike is separated while the infusion solution remains in the infusion bag. However, the present inventors have found that there are the following problems in the process of using the spike port.

First, since the tube support part 42 of the leak blocking member 40 surrounds the lower outer surface of the drain pipe 11, when the connection tube T is inserted into the drain pipe 11 of the port body 10, the tube support part ( 42), it is difficult to insert the connection tube (T) due to friction.

Second, when the connection tube (T) is inserted into the drain tube (11) of the port body (10), the possibility that the tube support (42) is pushed out and the gap between the blade cut lines (43) of the leak blocking member (40) is slightly widened In this case, after the spike is separated from the drainage pipe 11, the leakage blocking member 40 cannot completely block the leakage of the fluid.

Third, in order for the leakage blocking member 40 to completely block the leakage of the fluid, after the spikes are separated, the gaps between the blade incisions 43 should be restored to their original state and brought into close contact with each other. However, in the leak blocking member 40, the inlet blocking film 41 protrudes in the opposite direction to the direction in which the spike exits, so it is not easy to restore the inlet blocking film 41 to its original state, and the gap between the blade cut lines 43 gaps are likely to occur.

Accordingly, the present invention is designed to improve the problem of the spike port of FIG. 2, and the assembly work such as insertion of the fluid bag connection tube (T) is easy, and after separating the spike, the drain pipe of the port body 10 ( 11) To provide a spike port with a new structure that can effectively block outflow.

The spike port for an infusion bag according to the present invention includes a port body 10 having a drainage pipe 11 connected to the infusion bag (B) and integrally injection-molded on the upper end of the port body 10, and the upper end is a compression sealing part. The separation cap 20 having a hollow structure sealed by (21), the circumferential cutting groove 30 connecting the port body 10 and the separation cap 20 in a cutable manner, and the drainage pipe 11 It is characterized in that it is configured to include a leak blocking member 40 installed at the lower inlet to block leakage of the fluid.

The leakage blocking member 40 is coupled to a coupling support ring 41 inserted into and supported in the outer diameter portion of the lower end of the drain pipe 11, and is coupled to the coupling support ring 41 to open a lower entrance of the drain pipe 11. It is made of an inlet blocking cap 42 made of a medical elastomer material that blocks, and a curved groove 421 round in an arc shape is formed on the outer bottom surface of the inlet blocking cap 42, and the It is characterized in that the curved groove 421 is cut with a cutting edge 422 that blocks the leakage of the fluid while allowing the passage of the spike (S) inserted into the drain pipe 11.

In addition, the coupling support ring 41 is provided with a plurality of coupling protrusions 412 protruding along the outer circumferential surface of the inlet blocking cap 42, and the coupling protrusion 412 is provided on the outer circumferential surface of the inlet blocking cap 42. It is characterized in that protrusion receiving grooves 424 respectively corresponding to the protrusions 412 are provided.

In the spike port for fluid bag according to the present invention, the leakage blocking member 40 installed at the bottom of the drainage pipe 11 of the port body blocks the leakage of fluid while allowing the spike S inserted into the drainage pipe 11 to pass through. After removing the spike (S) from the drain pipe (11), there is an effect of fundamentally blocking the flow of the drug remaining in the infusion bag out of the drain pipe (11).

In the spike port for an infusion bag according to the present invention, the coupling support ring 41 and the inlet blocking cap 42 are molded into one body by insert injection, and the coupling protrusion 412 and the protrusion receiving groove 424 corresponding to each other are Since it is provided, when inserting the connection tube (T) into the drain pipe (11), it is easy to insert the connection tube (T), and furthermore, deformation of the inlet blocking cap (42) such as widening between the cutting lines (422) has the effect of preventing

1 is a diagram illustrating a conventional twist-off type spike port;
2 is a view illustrating a conventional leak-blocking spike port;
3 is a perspective view of a spike port according to the present invention;
4 is a cross-sectional view of a spike port according to the present invention;
Figure 5 is a cross-sectional view showing the state of use of the spike port according to the present invention
6 is an exploded perspective view of the leakage blocking member 40 according to the present invention.

Hereinafter, the present invention will be described in detail using the accompanying drawings. However, since the accompanying drawings show preferred embodiments of the present invention, the scope of the present invention is not limited by these drawings. In addition, even if the configuration is essential for carrying out the present invention, detailed descriptions of configurations that belong to the known technology or can be easily implemented by a person skilled in the art from the known technology will be omitted.

As shown in FIGS. 3 and 4, the spike port for an infusion bag according to the present invention includes a port body 10, a separation cap 20, and a leak blocking member 40, and the port body 10 And the separation cap 20 are connected to each other by the circumferential cutting groove 30. In the present invention, for convenience, the side with the separation cap 20 is referred to as the upper side or the upper side, and the side with the tear blocking member 40 is divided into the lower side or the lower side to explain the correlation between the respective components.

First, the port body 10 has a structure in which an internal barrier film 12 is installed inside the drain pipe 11, and a pair of lower wings 13 protrude from the upper side of the drain pipe 11. As shown in FIG. 5, the drainage pipe 11 is connected to the infusion bag (B), may be directly sealed to the infusion bag (B), or the upper end of the connection tube (T) installed in the infusion bag (B). may be inserted into

The separation cap 20 is integrally injection-molded on the upper end of the port body 10 and has a hollow structure, and the upper end is sealed by a conventional compression sealing part 21, and a pair of upper ends on both sides. It consists of a structure in which the wing 22 protrudes. The separation cap 20 seals the upper end of the port body 10 to prevent contamination.

The circumferential cutting groove 30 connects the port body 10 and the separation cap 20 in a cutable manner, and is disposed along the circumferential direction of the port body 10 and the separation cap 20, It is composed of finely connected parts with a thickness that can be cut by external force. So, holding the lower wing 13 of the port body 10 with one hand and holding the upper wing 22 of the separation cap 20 with the other hand and twisting them in opposite directions to each other, the circumferential cutting groove 30 cuts easily

In order to inject the infusion stored in the infusion bag (B) into the human body, first, as shown in FIG. 5, the separation cap 20 is cut and removed along the circumferential cutting groove 30. Subsequently, a spike (S) is inserted into the drain pipe (11) of the port body (10) from top to bottom. The spike (S) passes through the internal barrier film 12 and the leakage barrier member 40 installed in the drainage pipe 11 to form a passage through which the fluid passes. In this state, when the infusion bag (B) is turned over so that the spike (S) faces downward, the infusion solution is discharged through the spike (S).

The leakage blocking member 40, which is a feature of the present invention, is installed at the lower entrance of the drain pipe 11 and includes a coupling support ring 41 and an inlet blocking cap 42. The leakage blocking member 40 functions to block leakage of the fluid stored in the fluid bag while allowing the spike S inserted into the drainage pipe 11 to pass through.

The coupling support ring 41 is inserted into the lower outer diameter portion of the drain pipe 11 and functions to support the inlet blocking cap 42 . As shown in FIG. 6, in the outer diameter portion of the lower end of the drain pipe 11, the cut support ring is cut by a thickness corresponding to the thickness of the coupling support ring 41 over the portion where the coupling support ring 41 is inserted. An accommodating part 11a is provided.

The inlet blocking cap 42 is coupled to the coupling support ring 41 to block the lower inlet of the drain pipe 11, and is made of a medical elastomer material. So, when the spike (S) inserted in the drain pipe 11 is pulled out, it functions to block the fluid from flowing out into the drain pipe 11.

According to a preferred embodiment of the present invention, the coupling support ring 41 is made of a hard plastic material having a shore hardness of 65 to 95 A, and the inlet blocking cap 42 is made of an elastomer material having a shore hardness of 30 to 50 A. It is preferable that the coupling support ring 41 and the inlet blocking cap 42 are integrally molded by insert injection molding.

If the shore hardness of the coupling support ring 41 is less than 65A, the strength is too weak to effectively support the inlet blocking cap 42. On the contrary, if it exceeds 95A, the strength is too strong during work or handling. In this case, the coupling support ring 41 is broken, or the adhesive force with the inlet blocking cap 42 is lowered, so that the coupling support ring 41 and the inlet blocking cap 42 are separated from each other.

If the Shoah hardness of the inlet blocking cap 42 is less than 30A, the material is too soft and there is a problem of poor workability and productivity. Conversely, if it exceeds 50A, the elasticity and restoring force of the inlet blocking film 41 is reduced to prevent leakage of sap. I have a problem with not being able to block it completely.

A medical polypropylene copolymer may be used as the material of the coupling support ring 41 . However, it is preferable to mix the material of the inlet blocking cap 42, that is, medical elastomer, with the polypropylene copolymer in order to strengthen the adhesive force with the connection tube T and facilitate insert injection with the inlet blocking cap 42. do.

As the medical elastomer used as the material of the inlet blocking cap 42, hydrogenated SIBS (styrene-isoprene-butadiene block copolymer), hydrogenated SBS (styrene-butadiene-styrene copolymer), hydrogenated SIS (styrene-isoprene-styrene copolymer) polymer), hydrogenated SEBS (styrene-ethylene-butadiene block copolymer), hydrogenated SEPS (styrene-ethylene-propylene block copolymer), hydrogenated SEEPS (styrene-ethylene-ethylene-propylene block copolymer), hydrogenated SBC (styrene-butadiene) block copolymer) and hydrogenated SBPS (styrene-ethylene-propylene-styrene copolymer).

A curved groove 421 roundly dug in an arc shape is formed on the outer bottom surface of the inlet blocking cap 42, and a spike (S) inserted into the drain pipe 11 is formed in the curved groove 421 The cutting edge 422 that blocks the leakage of the fluid while allowing the passage of the fluid is cut. In addition, it is preferable that a curved surface 423 that rises roundly in an arc shape is formed on the inner upper surface of the inlet blocking cap 42.

The blade cutting line 422 is a cutting line cut between the curved groove 421 and the curved surface 423 in a '-' or '+' shape, for example. So, when the spike (S) is inserted into the drain pipe (11), the gap between the knife cutting lines (422) widens to allow the spike (S) to pass through. And after the spike (S) is removed, the inlet blocking cap (42) itself has a function to block the passage of the infusion flowing out of the infusion bag (B) by restoring and adhering to the gap between the blade incision lines (422). do.

In the present invention, the outer bottom surface and the inner upper surface of the inlet blocking cap 42, that is, the curved groove 421 and the curved surface 423 all protrude gently in the direction in which the spike S exits, draining the drain pipe 11 When the spike (S) is separated from, the leakage of the sap can be effectively blocked while the blade incision line 422 is in close contact with each other stably.

On the other hand, an inward circumference 411 on which the inlet blocking cap 42 sits protrudes from the inner circumferential surface of the coupling support ring 41, and the inner upper surface of the inlet blocking cap 42 is the inward circumference ( 411) is preferably disposed above. So, as shown in FIG. 4, the lower end of the drain pipe 11 is tightly inserted between the coupling support ring 41 and the inlet blocking cap 42, thereby forming a solid coupling structure as a whole.

In addition, the coupling support ring 41 is provided with a plurality of coupling protrusions 412 protruding along the outer circumferential surface of the inlet blocking cap 42, and the outer circumferential surface of the inlet blocking cap 42 has the It is preferable that protrusion receiving grooves 424 corresponding to each coupling protrusion 412 are provided.

The coupling protrusion 412 firmly couples the coupling support ring 41 and the inlet blocking cap 42 as one body, and at the same time, when the connection tube T is inserted into the drain pipe 11, the connection tube (T ) By reducing the friction area between the inner surface and the inlet blocking cap 42, as a result, the insertion of the connecting tube (T) is facilitated, and furthermore, the inlet blocking cap 42 It serves to prevent deformation of

The spike port according to the present invention undergoes a sterilization process at a high temperature together with the infusion bag (B) while being installed in the infusion bag (B). ) While being firmly heat-sealed, the port body 10 and the leak blocking member 40 are combined into one body.

(10) Port body (11) Drain pipe
(11a) Support ring accommodating part (12) Internal barrier film
(13) Lower wing (20) Separate cap
(21) compression sealing part (22) upper wing
(30) Cutting groove (40) Leak blocking member
(41) Coupling support ring (411) Inward circumference
(412) coupling protrusion (42) inlet blocking cap
(421) curved groove (422) blade incision
(423) Curved surface (424) Protrusion receiving groove
(B) Infusion bag (T) Connection tube
(S) Spike

Claims (6)

A port body 10 having a drain pipe 11 connected to the infusion bag B, and a hollow structure integrally injection-molded on the upper end of the port body 10 and sealed at the upper end by the compression sealing part 21 The separation cap 20 of the port body 10 and the separation cap 20 are severably connected to the circumferential cutting groove 30, which is installed at the lower entrance of the drain pipe 11 to block the leakage of fluid. In the spike port for an infusion bag comprising a tear blocking member 40 to
The leakage blocking member 40 is coupled to a coupling support ring 41 inserted into and supported in the outer diameter portion of the lower end of the drain pipe 11, and is coupled to the coupling support ring 41 to open a lower entrance of the drain pipe 11. It consists of an inlet blocking cap 42 made of medical elastomer material that blocks,
A curved groove 421 roundly dug in an arc shape is formed on the outer bottom surface of the inlet blocking cap 42, and a spike (S) inserted into the drain pipe 11 is formed in the curved groove 421 A spike port for an infusion bag, characterized in that the blade incision 422 that blocks the leakage of the infusion while allowing the passage of the infusion is cut.
The method of claim 1, wherein the coupling support ring 41 is made of a hard plastic material having a shore hardness of 65 to 95A, and the inlet blocking cap 42 is made of an elastomer material having a shore hardness of 30 to 50A. The coupling support ring 41 and the inlet blocking cap 42 are molded into one body by insert injection, characterized in that, the spike port for the infusion bag.
The spike port for an infusion bag according to claim 1, characterized in that a curved surface 423 rising round in an arc shape is formed on the inner upper surface of the inlet blocking cap 42.
The method of claim 1, wherein an inward circumference 411 on which the inlet blocking cap 42 sits protrudes from the inner circumferential surface of the coupling support ring 41, and the inner upper surface of the inlet blocking cap 42 is Disposed above the inward circumference 411, characterized in that the lower end of the drain pipe 11 has a structure that is closely inserted between the coupling support ring 41 and the inlet blocking cap 42, Spike port for infusion bag.
The method of claim 1, wherein the coupling support ring 41 is provided with a plurality of coupling protrusions 412 protruding along the outer circumferential surface of the inlet blocking cap 42, and the outside of the inlet blocking cap 42 A spike port for an infusion bag, characterized in that the circumferential surface is provided with protrusion receiving grooves 424 corresponding to the coupling protrusions 412, respectively.
The method of claim 1, wherein the outer diameter portion of the lower end of the drain pipe 11 accommodates the cut support ring by a thickness corresponding to the thickness of the coupling support ring 41 over a portion where the coupling support ring 41 is inserted. A spike port for an infusion bag, characterized in that a portion (11a) is provided.

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