RU2524637C2 - Medical connector and its bendable combined lid - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical devices. Claimed is a medical cap, which can be broken off, including the cap body, with the cap body including an upper wall, a side wall and a cavity, in which a rubber stoppering means is placed, with a breaking off element being provided on the upper wall, the said element includes a tubular neck section, connected with the upper wall, and a section which is broken off, connected to the neck section; a brittle hollow is provided on the neck section, and the brittle wall is limited by the brittle hollow and an internal surface of the neck section wall, and the medical combined cap which can be broken off additionally contains an internal cap and the rubber stoppering means, densely held between the cap body and the internal cap. Also described is a medical port, connected with the said cap.

EFFECT: simplification and increase of exploitation reliability, as well as the construction simplification are achieved.

14 cl, 10 dwg

Description

FIELD OF TECHNOLOGY

[0001] The present invention relates to a medical device, in particular to a medical port and a breakable combination cap thereof.

BACKGROUND

[0002] The medical port is mainly used with IV medical containers, such as an infusion soft bag or an infusion bottle, for injecting solution into containers and transfusing the solution to patients. The medical port includes a combination cap, a lower port connected to the combination cap, and a connecting case connected to the lower port. The combination cap and bottom port can be joined by welding, snap-on, or any other means. As a rule, the lower port can be made integral with the connecting case, and the connecting case can be hermetically connected to the IV medical capacity by welding, etc.

[0003] The main function of the combination cap is to seal the lower port tightly and to tightly hold the rubber closure. The rubber closure can hermetically seal and protect the liquid medicine in the IV medical container before and after piercing with a needle. Currently, the combination cap mainly includes an upper cap, an inner cap, and a rubber closure tightly held between the upper cap and the inner cap. The tear-off element is located on the upper cap, and the weakened portion is located between the tear-off element and the upper cap. Prior to use, the tear-off element is in an intact state to ensure tight closure of the entire combined cap; when used, the tear-off element is torn off from the weakened area by an external force to form a pierced hole on the upper cap and exposes the pierced portion of the rubber closure, thereby facilitating subsequent relevant processes.

[0004] There are two kinds of tear-off elements, for example, a tear-off tear-off element and a contractible tear-off element, according to the nature of the action. The breakable tear-off element for the most part is a breakable handle that is pulled by an external force to tear off the upper wall of the upper cap with a lever force to form a tear-off hole. For a pull-out tear-off element, it is usually pulled to tear off the upper cap gradually to form a pierced hole.

[0005] Figures 1 and 2 show a medical port 100 connected to an IV medical capacity 3 and its conventional breakable combination cap. The two connections 20 in total for the infusion closure and the solution supply closure are provided with a connecting case 2 of the port 100. Each connection 20 includes a combination cap 21 and a lower port 22, and the combination cap 21 is a breakable combination cap including a column breakable handle 214. A brittle notch 216 with a triangular cross-section is provided in the connection position between the base of the breakable handle 214 and the upper wall 215 of the upper cap 211. Relatively weak and linear A weak weakened wall 217 is formed by the apex of each triangle and the inner surface of the upper wall 215 of the upper cap 211. When pulling off the breakable handle 214, an external breaking force can act on the weakened wall 217 and tear it off. Since the weakened wall 217 of the column breakable handle 214 is formed in the upper wall 215 of the upper cap 211, the breaking force direction is substantially parallel to the weakened wall 217, when an external force acts on the breakable handle 214, then only part of the breaking force can act on the weakened wall 217, such being labor intensive. To ensure easy tearing of the weakened wall 217, the thickness of the weakened wall 217 is usually relatively thin. Although this design solves the problem of simple tearing, it also weakens the structural strength of the product before use. Further, a brittle notch 216 having a triangular cross section may also cause a relatively concentrated stress around the weakened wall 217. Thus, during transportation, storage and sterilization, the product may be particularly prone to failure, thereby causing contamination of the connectors and ejection of the product.

SUMMARY OF THE INVENTION

[0006] The technical problem solved by the present invention is to provide a medical port and its breakable combination cap, so that the breaking effect is effortless, and the product cannot be easily broken during transportation, storage and sterilization.

[0007] The present invention provides a breakable combination cap for performing one of these tasks. The breakable combination cap includes a cap body having an upper wall, a side wall and a cavity accommodating a rubber closure. The breakable element is located on the upper wall and includes a section of the tubular neck connected to the upper wall, and a breakable section connected to the neck section. A fragile recess is located in the neck section, and a fragile wall is limited by a fragile recess and the inner wall surface of the neck section.

[0008] The cross section of the brittle groove is trapezoidal, with the upper surface of the trapezoid and the inner surface of the wall of the neck portion parallel and form a brittle wall.

[0009] A breakable combination cap includes a cap body, an inner cap, and a rubber closure tightly held between the cap body and the inner cap.

[0010] The present invention further provides a medical port for another task. The medical port includes a connection case connected to the medical container, and at least one connection connected to the connection case. At least one connection includes a lower port connected to the connecting housing, and a breakable combination cap connected to the lower port. The breakable combination cap is located above the described breakable combination cap.

[0011] The medical port includes two connections. Another connection includes a cap body and a rubber capping device, and an enclosing cavity having a bearing end surface is made in the upper portion of the cap body. The holding portion is made by extending the cap body in a radial direction inward to the center of the enclosing cavity. The rubber capping device is fixed in the enclosing cavity by a holding portion. The holding portion forms a pierced hole in the cap body and exhibits a pierced portion of the rubber closure. The protective film is located above the cap body to cover the pierced hole.

[0012] The holding portion is formed by a protruding portion integral with the inner surface of the side wall of the cap body.

[0013] An open angle is formed at each of the two ends of the connecting body, and the open angle is less than 71 degrees.

[0014] The connecting body is in the form of a boat, with an open angle of 44 to 54 degrees.

[0015] The connecting body has a diamond shape, with an open angle of 28 to 38 degrees.

[0016] An identification mark portion is located on each of the two connections.

[0017] The connecting case, the lower ports of the two connections and the housing of the combined cap of the other connection are integral.

[0018] The height from the lower surface of the connecting case to the upper surface of the lower port connected to the breakable combination cap varies from 35 mm to 40 mm, and the height from the lower surface of the connecting case to the upper surface of the cap case of another connection varies from 35 mm to 40 mm .

[0019] The diameter of the upper portion of the lower port connected to the breakable combination cap varies from 18 mm to 22 mm.

[0020] The diameter of the upper portion of the cap body of the other compound varies from 9.5 mm to 12 mm.

[0021] The central distance of the two joints varies from 20 mm to 30 mm.

[0022] The advantages of the present invention are as follows.

[0023] 1. In the medical port and its breakable combination cap according to the present invention, the brittle wall is located in a relatively weak neck area instead of being located on the upper wall of the cap body in the prior art. Thus, when an external force acts on the breakable handle, the direction of the breaking force is substantially perpendicular to the brittle wall, and the entire breaking force can effectively act on the brittle wall, thus requiring no effort. Thus, when the entire breaking force can act as an effective force without loss of force, the thickness of the brittle wall can be accordingly increased to improve the structural strength of the product before use. Thus, during transportation, storage and sterilization, the product cannot be easily broken. In the medical port and its breakaway combinable cap according to the present invention, the breaking force is completely translated into effective force, and thus, even though the thickness of the brittle wall is increased to a certain degree, the breaking force will not be increased, otherwise it can be laborious.

[0024] 2. In the medical port and its breakable combination cap of the present invention, the cross section of the brittle indentation is trapezoidal, and the upper surface of the trapezoid and the inner wall surface of the tubular neck portion are parallel and define the brittle wall, so that stress concentration phenomena around the brittle wall can to be improved. As a result, the strength of the breakable element is further improved, and thus, the breakable element will not be easily broken during transportation or sterilization at high temperature.

[0025] 3. In the medical port of the present invention, the combination cap on the other connection includes only one cap body and a protective film, thereby reducing the number of molded parts and preserving the material. Further, when the combined cap is made by only one cap body, and an inner cap suitable for the cap body is not required, thereby reducing the requirement for machine accuracy, increasing the number of finished products and significantly reducing the cost.

[0026] 4. In the medical port of the present invention, the connecting body is boat-shaped, and the open angle at both ends is reduced. Thus, a certain distance is formed between the two compounds to avoid interference with each other; when the medical port is connected to a medical container, and in particular, to a plastic soft bag, the plastic film of the plastic soft bag is not easy to slip by sliding from the four-sided surfaces of the open angle made at the two ends of the connecting case, and it cannot be torn and bent or wrinkled, thus realizing high connective quality.

[0027] 5. An identification mark portion is provided at the medical port of the present invention, so that healthcare professionals can easily distinguish between the supply solution and the infusion connection in the work process, thereby avoiding the problems of contamination with plastic debris and fluid leakage caused by the medical personnel, repeatedly piercing one connection, and ensuring safety and compliance with sanitary sterility standards in medical processes.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic view of a prior art medical port connected to an infusion vessel;

[0029] FIG. 2 is a sectional view of an upper cap of a breakable combination cap of FIG. 1;

[0030] Figure 3 is a detail schematic view of a medical port according to a first embodiment of the present invention;

[0031] FIG. 4 is a schematic view of the medical port of FIG. 3 connected to an infusion vessel;

[0032] FIG. 5 is an enlarged schematic view of a body of a breakable combination cap of the present invention;

[0033] FIG. 6 is a sectional view of the connecting housing of FIG. 4;

[0034] FIG. 7 is a cross-sectional view of a connecting housing of FIG. 4, according to another embodiment;

[0035] FIG. 8 is a detail schematic view of a medical port according to a second embodiment of the present invention;

[0036] FIG. 9 is a schematic view of the medical port of FIG. 8 connected to an infusion capacity, and

[0037] FIG. 10 is a schematic view of a medical port according to a third embodiment of the present invention connected to an infusion vessel.

DETAILED DESCRIPTION OF EMBODIMENTS

FIRST OPTION

[0038] As shown in FIGS. 3-6, the present invention provides a medical port 10 and a breakable combination cap 4. A breakable combination cap 4 is a component of the medical port 10 and is included in embodiments of the medical port 10, and thus embodiments the breakable combination cap 4 will not be described separately in this invention.

[0039] As shown in FIGS. 3 and 4, the medical port 10 of the present invention includes a connecting case 2 connected to the medical capacity 3, and in at least one connection 1 connected to the connecting case 2. In this embodiment, two connections 1 Specifically, the medical port 10 may also include only one connection 1. Each of the two connections 1 includes a lower port 12 connected to the connecting housing 2, and a breakable combination cap 4 connected to the lower port 12. Each breakable is combined The cap 4 includes a cap body 41, an inner cap 43, and a rubber closure 42 tightly held between the cap body 41 and the inner cap 43. The inner cap 43 and the lower port 12 can be welded together (see the breakaway combination cap 4 of the left connection in FIG. .3) or snapping-in, and can also be performed at the same time (see the breakable combination cap 4 of the right connection in Figure 3).

[0040] As shown in FIG. 5, the cap body 41 includes an upper wall 411, a side wall 412, and a cavity 413 accommodating a rubber closure. The breakable element 5 located on the upper wall 411 includes a tubular neck section 51 connected to the upper wall 411 and a breakable section 52 connected to the neck section 51. A brittle recess 53 is located on the neck section 51, while the brittle wall 54 is formed by a brittle recess 53 and the inner wall surface of the tubular neck portion 51. The brittle wall 54 is weakened in the present invention to provide a relatively weak neck portion 51, instead of being located on the top wall of the bulb body ka in the art. Thus, when the handle is pulled, under the external force, the direction of the breaking force is essentially perpendicular to the brittle wall 54, so that the entire breaking force can act on the brittle wall as an effective force, thus requiring no application of force. Accordingly, while the entire breaking force can act as an effective force without loss of strength, the thickness of the brittle wall 54 can be accordingly increased to enhance the structural strength of the product before use. Thus, during transportation, storage and sterilization, the product cannot be easily broken. In the present invention, the breaking force is completely translated into an effective force. Thus, even though the thickness of the brittle wall is increased to a certain extent, the breaking force cannot be increased, otherwise it can be laborious.

[0041] Preferably, the cross section of the brittle recess 53 is trapezoidal, with the upper surface of the trapezoid and the inner wall surface of the tubular neck portion 51 parallel to define the brittle wall 54, so that the stress concentration phenomenon around the brittle wall 54 can be enhanced. As a result, the strength of the breakable element 5 is further increased, and thus, the breakable element 5 cannot be easily broken during transportation or sterilization at high temperature. Specifically, the cross section of the brittle recess 53 may also take the form of a regular triangle or other shapes. If the cross section of the brittle recess 53 is in the shape of a triangle, the brittle wall 54 is made between the top of each triangle and the inner wall surface of the tubular neck portion 51, and the strength of the brittle wall 54 can also be strengthened by increasing its thickness. In this case, the breaking process also does not require efforts, and the accompanying drawings are not provided here.

[0042] In the present invention, an identification mark portion 6 is provided on the breakable portion 52 of the breakable element 5 of each breakable combination cap 4 of the two connections 1, so that medical professionals can recognize the solution supplying compound and the infusion connection during surgery, thereby avoiding plastic contamination problems debris and spillage caused by medical personnel piercing one compound 1 repeatedly. In the present invention, the identification mark portion 6 can be provided on only one connection 1, which can also determine the functioning of another connection. Section 6 of the identification mark can also be located on the lower port 12 of each connection 1, except for the combined cap 4 of each connection 1. Further, section 6 of the identification mark can also be located on the connecting case 2 or in the position of the medical container 3, corresponding to each of the two connections 1. The position of section 6 of the identification mark is not limited. Section 6 of the identification mark 6 may be a pointing arrow or color coating, which is not limited as long as the two compounds 1 can be identified.

[0043] As shown in FIG. 6, the connecting body 2 of the present invention is boat-shaped, and the open angle formed at each of the two ends of the connecting body 2 is less than 71 degrees. Preferably, the open angle A is between 44 and 54 degrees. As shown in FIG. 7, the cross section of the connecting body 2 may also be in the form of a rhombus, with an open angle formed at each of the two ends of the connecting body 2. Preferably, the open angle is 33 +/- 5 degrees. The open angle on both sides of the connecting housing 2 of the medical port 10 of the present invention is less than the open angle of 71 degrees in the prior art. Thus, when the connecting body 2 is connected to the medical container 3 and especially to the plastic soft bag, the plastic film of the plastic soft bag is not easy to displace from the four-sided surfaces 21 of the open corners A made at the two ends of the connecting body 2, thereby facilitating assembly and welding. Further, the plastic film of the medical container 3 will not be torn and bent or wrinkled on the surfaces 21 of the four sides, and thus, the welding quality is easily controlled.

SECOND EMBODIMENT

[0044] As shown in Figs. 8 and 9, the basic structure, principle, and effect of the second embodiment are essentially the same as those in the first embodiment, and will not be described again. The second embodiment differs from the first embodiment in that the breakable combination cap 4 in the first embodiment is provided on one of the two connections 1, while the rounded combination cap 11 is provided on the other connection 1.

[0045] The rounded combination cap 11 is rounded and bent from the upper portion of the side wall 111 to the center of the cavity 15 hosting the rubber closure to form a retaining portion 14 and define a pierced hole 16. A bearing end surface 17 is provided on the lower portion of the rubber cavity 15 closure. The rubber closure 42 is fixed in the cavity accommodating the rubber closure by the holding portion 14. The rounded combination cap 11 includes only one cap body, thereby minimizing the number of molded parts, preserving the material, simplifying quality control, having a high number of finished products and significantly reducing cost . In production, the cap body is first and foremost made, having a cavity 15 accommodating a rubber closure; then, the rubber closure 442 is located in the cavity 15 accommodating the rubber closure; then the upper end of the side wall 111 of the cap body is rounded and bent toward the center of the cavity 15 accommodating the rubber closure, a hot melt process, and so on, completing the production. The embodiment has advantages in that the cap body can be connected to rubber closures 42 having different specifications and thicknesses, and the cap body is universal, while the length of the rounded edge can be determined depending on the thickness of the rubber closure 42 located in a cavity 15 accommodating a rubber closure.

[0046] The pierced hole 16 is coated with a protective film 7 to ensure sterility of the inner space of the joints and the pierced portion of the rubber closure 42 before and after the application of the rounded combination cap 11. The protective film 7 may be a removable film, an adhesive film, a heat seal film, a rubber film, and so on. Further. The protective film 7 can be extended to the side wall 111 of the cap body to form a retractable portion 71 to facilitate tearing off the protective film 7.

[0047] The connecting body 2, the lower port 12 connected to the breakable combination cap, the lower port 12 connected to the rounded combination cap, and the body of the rounded combination cap 11 can be integral. The height from the lower surface of the connecting housing 2 to the upper surface of the lower port 12 connected to the breakable combination cap 11 is 36.8 mm, and the height from the lower surface of the connecting housing 2 to the upper surface of the body of the rounded combination cap 11 is also 36.8 mm. The diameter of the upper portion of the lower port 12 connected to a breakable combination cap 11 is 19 mm, and the diameter of the upper portion of the body of the rounded combination cap 11 is 10.4 mm. The central distance of the two joints is 25 mm.

THIRD EXECUTION

[0048] As shown in FIG. 10, the basic structure, principle and effect of the third embodiment are essentially the same as in the second embodiment, and in particular, the breakable combination cap 4 in the first embodiment is provided on one of two connections 1 The third embodiment differs from the second embodiment in that the other connection 1 includes a snap combined cap 19. The holding portion 14 of the housing of the snap combined cap 19 is made of a protruding portion at the same time as by extending the inner surface of the side wall 111 in a radial direction inward to the center of the cap body, thereby forming a snap-on combination cap 19. The protruding portion may have a closed annular shape, and the upper surface of the protruding portion is a diagonal mating surface 18 inclined radially and outward from the bottom to the top. The diagonal mating surface 18 may simplify the direction of the rubber closure 42 into the cavity 15 accommodating the rubber closure.

[0049] The above description provides only exemplary embodiments of the invention. Any equivalent modifications and improvements based on the description of the present invention should be considered to be within the scope of the present invention.

Claims (14)

1. A medical breakable combination cap comprising a cap body, wherein the cap body includes an upper wall, a side wall and a cavity in which a rubber closure is disposed, and a breakable element is provided on the upper wall, which includes a tubular neck portion connected to the upper wall, and a breakable portion connected to the throat portion, wherein a brittle groove is provided in the throat portion, and the brittle wall is bounded by the brittle groove and the inner surface of the walls ki of the throat portion, moreover, the medical breakable combination cap further comprises an inner cap and a rubber closure tightly held between the cap body and the inner cap. 2. The medical breakable combination cap according to claim 1, characterized in that the cross section of the fragile recess is in the form of a trapezoid, and the upper surface of the trapezoid and the inner surface of the wall of the neck section are parallel and form a fragile wall. 3. A medical port including a connecting case connected to a medical container, and at least one connection connected to the connecting case, said at least one connection including a lower port connected to the connecting case, and a medical breakable combination cap, connected to the lower port, wherein the medical breakable combination cap is a medical breakable combination cap according to any one of claims 1 to 2. 4. The medical port according to claim 3, characterized in that the medical port includes two connections, while the other connection includes a cap body and a rubber closure; the accommodating cavity is made on the upper portion of the cap body; the holding portion is formed by extending the cap body in a radial direction inward to the center of the receiving cavity; wherein the rubber closure is fixed in the receiving cavity by the holding portion, the holding portion forming a pierced hole in the cap body and exposing the pierced portion of the rubber closure, while a protective film is provided over the cap body to cover the pierced hole. 5. The medical port according to claim 4, characterized in that the holding section is formed by a protruding section, made integral with the inner surface of the side wall of the cap body. 6. The medical port according to claim 3, characterized in that the connecting body has two ends, and an open angle is formed on each of the two ends of the connecting body, and this open angle is less than 71 degrees. 7. The medical port according to claim 6, characterized in that the connecting body has the shape of a boat, and the open angle is from 44 to 54 degrees. 8. The medical port according to claim 6, characterized in that the connecting case has a diamond shape, and the open angle is from 28 to 38 degrees. 9. The medical port according to claim 3, characterized in that at each of the at least one connection is provided with an identification mark section. 10. The medical port according to claim 4, characterized in that the connecting case, the lower ports of the two connections and the cap body of the other connection are made at the same time. 11. The medical port of claim 10, characterized in that the height from the lower surface of the connecting housing to the upper surface of the lower port connected to a breakable combination cap is from 35 to 40 mm, while the height from the lower surface of the connecting housing to the upper surface of the housing the combined cap of the other compound is from 35 to 40 mm. 12. The medical port of claim 10, characterized in that the diameter of the upper portion of the lower port connected to a breakable combination cap is from 18 to 22 mm. 13. The medical port of claim 10, characterized in that the diameter of the upper portion of the cap body of the other connection is from 9.5 to 12 mm. 14. The medical port of claim 10, wherein the central distance of the two connections is from 20 to 30 mm.

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