CN201157545Y

CN201157545Y - Non-PVC soft bag transfusion connecting pipe opening cover

Info

Publication number: CN201157545Y
Application number: CNU2008200175379U
Authority: CN
Inventors: 梁富友
Original assignee: Qingdao Huaren Pharmaceutical Co Ltd
Current assignee: Qingdao Huaren Medical Product Co., Ltd.; Huaren Pharmaceutical Co Ltd
Priority date: 2008-01-29
Filing date: 2008-01-29
Publication date: 2008-12-03
Anticipated expiration: 2018-01-29

Abstract

The utility model provides a non-PVC soft bag transfusion connection tube opening cover, which comprises a plastic connection tube, an opening cover connected with the connection tube opening and a rubber plug in the opening cover. The connection tube opening cover is characterized in that part or the whole of the upper end opening periphery of the plastic connection tube or/and the opening periphery contacted with the upper end opening of the plastic connection tube is provided with a convex structure; through melting the convex structure, the plastic connection tube and the opening cover are welded into a whole. The upper end opening of the plastic connection tube is round; the convex structure at the upper end opening periphery of the plastic connection tube is an annular plane convex edge; the convex structure at the opening cover periphery is the annular plane convex edge corresponding to the annular plane convex edge at the upper end opening periphery of the plastic connection tube; the opening cover is arranged on the plastic connection tube; the two annular plane convex edges are butted to each other; through ultrasonic wave or heating, the two annular plane convex edges are melted and connected into a whole. The firm and sealing performance of the connection between the plastic connection tube and the opening cover is good; the connection tube opening cover has simple structure, convenient production and safe use.

Description

Non-PVC-soft-bag transfusion connection tube flap

Technical field

This utility model belongs to the medical packaging technology, is a kind of non-PVC-soft-bag transfusion connection tube flap specifically.

Background technology

When producing at present the non-PVC-soft-bag transfusion, be connection tube to be welded to make transfusion bag on the non-PVC film earlier, with mechanical force flap be installed on the connection tube after pouring into medicinal liquid; The connection tube flap mainly by the threaded engagement that is in contact with one another face together.The shortcoming of this connected mode is that the connection tube flap is not strong by the fastness that self is connected; And after flap was opened under external force and assembling connects once more, its surface did not have obviously damage, was difficult for being discovered, and this makes the soft bag infusion product be vulnerable to the pollution of external factor.

How to design a kind of non-PVC-soft-bag transfusion connection tube flap, make connection tube and flap firm and reliable connection, good airproof performance, and simple in structure, easy to make, safe in utilization, this is the technical problem that needs to be resolved hurrily at present.

Summary of the invention

The purpose of this utility model is the problem that exists at prior art, and a kind of non-PVC-soft-bag transfusion connection tube flap is provided, and plastic union pipe and flap are connected firmly, good airproof performance, and simple in structure, easy to make, safe in utilization.

The purpose of this utility model is achieved by the following technical solution: a kind of non-PVC-soft-bag transfusion connection tube flap, comprise the rubber stopper in plastic union pipe, the flap that is connected with the connection tube mouth of pipe and the flap, it is characterized in that described plastic union pipe upper port outer rim or/and the flap outer rim that contacts with the plastic union pipe upper port partly or entirely be provided with a bulge-structure, by melting bulge-structure plastic union pipe and flap are welded as a whole.

Improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: described plastic union pipe upper port is circular, and the bulge-structure of plastic union pipe upper port outer rim is the ring plain convex edge; The bulge-structure of described flap outer rim is the ring plain convex edge corresponding with the ring plain convex edge of plastic union pipe upper port outer rim, flap is installed on the plastic union pipe, the butt joint of two ring plain convex edges, by ultrasound wave or heating two ring plain convex edges are melted, two ring plain convex edges are welded as a whole.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: described bulge-structure is a ring-type, and the cross section is a kind of in arc, waveform, zigzag or inclination trapezoidal.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: described bulge-structure is for being interrupted facet, hemispherical, the triangle or trapezoid a kind of that is provided with.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: the bump sizes of described bulge-structure is 0.5-2mm.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: described plastic union pipe medial wall is provided with annular projection, the upper edge, medial wall is provided with groove, the corresponding setting and plastic union pipe medial wall annular projection and identical annular recess and the projection of groove on the sidewall that described flap and plastic union pipe are pegged graft.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: there is a circle opening at described flap end face middle part, connects a tegillum with easy handle at the circle opening part.

Further improvement to above-mentioned non-PVC-soft-bag transfusion connection tube flap: described rubber stopper is the disk shape, and the end face middle part is a circular concave, and the middle part, bottom surface is a pit.

This utility model advantage and beneficial effect compared with prior art is:

1, this utility model can be convenient to the connection tube flap is carried out welding of part circumference or the welding of wholecircle week by the bulge-structure in plastic union pipe and the setting of flap junction.After the welding, can increase the fastness that the connection tube flap connects, make flap be difficult for opening under external force, even flap is opened from connection tube, also can form not recoverable damage to the connection tube flap, effectively avoid the pollution of external environment condition, solved the problem that existing soft bag infusion exists medicinal liquid.Simultaneously, can further increase sealing, the air-tightness of infusion products, improve the safety of soft bag infusion product quality.

2, easy handle of this utility model and lid are one, and the sterilization back is an aseptic condition, does not need during use to disinfect again.

3, this utility model rubber stopper end face middle part is a circular concave, and the middle part, bottom surface is a pit, is convenient to insert transfusion needle.

4, this utility model is simple in structure, and processing cost is low, and method is simple, is convenient to production operation.

Description of drawings

Fig. 1 is the axial cutaway view of the flap that is connected with plastic union pipe of this utility model;

Fig. 2 partly cuts open figure for this utility model plastic union pipe gets;

Fig. 3 is the profile of this utility model assembling back non-PVC-soft-bag transfusion connection tube flap.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and preferred implementation.

Referring to Fig. 1-Fig. 3, the embodiment of a kind of non-PVC-soft-bag transfusion connection tube flap of the present utility model, the rubber stopper 2 in flap 1 that mainly comprise plastic union pipe 3, is connected and the flap with the mouth of pipe, rubber stopper 2 is the disk shape, the end face middle part is a circular concave, and the middle part, bottom surface is a pit.Described plastic union pipe 3 upper port are circular, and plastic union pipe 3 upper port outer rims are provided with ring plain convex edge 4, and the flat pipe section of plastic union pipe 3 lower ends is rhombus or ellipse.There is a circle opening at described flap 1 end face middle part, connects a tegillum with easy handle at the circle opening part, blocks opening, prevents to pollute, and is convenient to open.In flap 1 top outer rim the ring plain convex edge 5 corresponding with the ring plain convex edge 4 of plastic union pipe 3 upper port outer rims is set, the bump sizes of ring plain

convex edge

4,5 is 0.5-2mm.Flap 3 is installed on the

plastic union pipe

1, and 4,5 butt joints of two ring plain convex edges melt two ring plain

convex edges

4,5 by ultrasound wave or heating, and two ring plain

convex edges

4,5 are welded as a whole, and can carry out welding of part circumference or the welding of wholecircle week.Make flap 3 be difficult for opening under external force,, also can form not recoverable damage the connection tube flap even flap 3 is opened from plastic union pipe 3, safe in utilization.

This utility model also has following several embodiments: 1, have only a side to have the bulge-structure shown in Fig. 1 or Fig. 2 in flap 1 or the plastic union pipe 3 except that above embodiment; 2, do to a certain extent alteration of form at the bulge-structure of this utility model flap 1, plastic union pipe 3, as being ring-type with bulge-structure, the cross section is a kind of in arc, waveform, zigzag or inclination trapezoidal; 3, bulge-structure described in the utility model is processed into the bulge-structure of part circumference or interruption, as the facet that is interrupted, hemispherical, triangle or trapezoidal etc.

Above-mentioned explanation is not to be to restriction of the present utility model; this utility model is not limited to above-mentioned giving an example, and those skilled in the art are in essential scope of the present utility model; the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.

Claims

1, a kind of non-PVC-soft-bag transfusion connection tube flap, comprise the rubber stopper in plastic union pipe, the flap that is connected with the connection tube mouth of pipe and the flap, it is characterized in that described plastic union pipe upper port outer rim or/and the flap outer rim that contacts with the plastic union pipe upper port partly or entirely be provided with a bulge-structure, by melting bulge-structure plastic union pipe and flap are welded as a whole.

2, according to the described non-PVC-soft-bag transfusion of claim 1 connection tube flap, it is characterized in that: described plastic union pipe upper port is for circular, and the bulge-structure of plastic union pipe upper port outer rim is the ring plain convex edge; The bulge-structure of described flap outer rim is the ring plain convex edge corresponding with the ring plain convex edge of plastic union pipe upper port outer rim, flap is installed on the plastic union pipe, the butt joint of two ring plain convex edges, by ultrasound wave or heating two ring plain convex edges are melted, two ring plain convex edges are welded as a whole.

3, according to the described non-PVC-soft-bag of claim 1 transfusion connection tube flap, it is characterized in that: described bulge-structure is a ring-type, and the cross section is a kind of in arc, waveform, zigzag or inclination trapezoidal.

4, according to the described non-PVC-soft-bag transfusion of claim 1 connection tube flap, it is characterized in that: described bulge-structure is for being interrupted facet, hemispherical, the triangle or trapezoid a kind of that is provided with.

5, according to each described non-PVC-soft-bag transfusion connection tube flap of claim 1-4, it is characterized in that: the bump sizes of described bulge-structure is 0.5-2mm.

6, according to the described non-PVC-soft-bag transfusion of claim 5 connection tube flap, it is characterized in that: described plastic union pipe medial wall is provided with annular projection, the upper edge, medial wall is provided with groove, the corresponding setting and plastic union pipe medial wall annular projection and identical annular recess and the projection of groove on the sidewall that described flap and plastic union pipe are pegged graft.

7, according to the described non-PVC-soft-bag transfusion of claim 5 connection tube flap, it is characterized in that: there is a circle opening at described flap end face middle part, connects a tegillum with easy handle at the circle opening part.

8, according to the described non-PVC-soft-bag transfusion of claim 5 connection tube flap, it is characterized in that: described rubber stopper is the disk shape, and the end face middle part is a circular concave, and the middle part, bottom surface is a pit.