CN205549009U - Pad pasting lid - Google Patents

Abstract

A film-attached cover disclosed by the utility model comprises an outer cover, a rubber plug, a pressure pad and a film-attached cover. Wherein the rubber plug and the pressure pad are arranged inside the outer cover, and the film is covered on the upper surface and the side of the outer cover. The film sticking cover of the utility model has the advantages of good sealing performance, pollution-free, easy processing, convenience and practicality, and the like.

Description

a film cover

technical field

The utility model relates to the technical field of medical packaging, in particular to a film-sticking cover.

Background technique

With the continuous development of clinical medicine, the infusion set has changed from the initial glass bottle to the current non-PVC composite film soft bag. In the prior art, combined caps for infusion bags generally include pull-tab combined caps, double-fold combined caps and film-attached combined caps. Among them, the film-type combined cover is obviously superior to the former because of its advantages of easy opening, low finger fatigue and high opening power, and is generally loved by the majority of medical workers. The traditional film-adhesive combined cap is mainly composed of a cover body containing a rubber plug chamber, a rubber plug and a film, such as the film cap for transfusion described in the utility model patent with application number 201210435556.4. The inner cover and the outer cover of this film cover are of an integrated structure, and two cavities for accommodating rubber plugs are respectively arranged on it. During production and assembly, the two rubber plugs need to be respectively stuffed into their respective rubber plug chambers. Such a design makes the assembly process cumbersome, and in order to facilitate the insertion of the rubber plug into the rubber plug chamber, the structural arrangement of the rubber plug chamber will be as simple as possible, which will affect the fixing of the rubber plug. Therefore need a kind of good sealing performance, pollution-free, easy processing, convenient and practical transfusion bag film type combined cover.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a film cover for infusion bags.

In order to realize the purpose of the utility model, the utility model adopts the following technical solutions:

A film cover, comprising an outer cover, a rubber plug, a pressure pad and a film,

The outer cover comprises a substantially cylindrical outer cover body, a protrusion located above the outer cover body and having an opening on the upper surface, and a partition between the outer cover body and the protrusion, wherein the protrusion and the protrusion The compartments together define a cavity for receiving the rubber plug and the pressure pad;

The rubber plug has a shape matching the cross-section of the cavity, and the rubber plug is fixed in the cavity close to the interlayer;

The pressure pad is sealed and fixed above the rubber plug;

The film is covered on the upper surface and the side of the protruding part.

Further, both ends of the rubber plug are arc-shaped, and the middle part is rectangular.

Furthermore, the two ends of the upper and lower surfaces of the rubber plug respectively have two circular depressions, and the circular depressions are respectively used for infusion and dosing.

Further, the upper and lower surfaces of the rubber plug have annular grooves on the sides and linear grooves in the middle, respectively, and the upper surface of the spacer and the lower surface of the pressure pad have ring grooves and linear grooves that match the ring grooves and linear grooves respectively. The annular protrusion and the linear protrusion are respectively inserted into the annular groove and the linear groove on the upper and lower surfaces of the rubber plug to position and fix the rubber plug.

Further, the edges of the ring-shaped protrusion and the linear protrusion are all arc-shaped transitions.

Further, the outer periphery of the pressure pad is provided with an annular boss whose size is larger than the opening, and the annular boss is used to fix the pressure pad in the cavity.

Further, the pressure pad has two circular holes corresponding to the circular depressions, and the diameter of the circular holes gradually increases from the upper surface of the pressure pad along the thickness direction of the pressure pad.

Further, the protrusion has a flange extending upwards perpendicular to the upper surface, and a V-shaped groove is formed in the middle of the flange.

Further, the film includes a main body of the film and wings on both sides of the main body of the film, wherein the main body of the film is used to cover the upper surface of the outer cover, and the wings are bent to cover part of the side of the outer cover.

A method for preparing a film cover, the method comprising the following steps:

Step 1: Use injection molding process to form the outer cover, rubber plug, and pressure pad respectively, and punch the aluminum foil into the shape of the film;

Step 2: Press the formed rubber plug into the cavity of the protruding part from the opening of the outer cover, and squeeze the rubber plug so that the ring-shaped protrusions and linear protrusions on the interlayer are respectively embedded in the ring-shaped protrusions on the upper surface of the rubber plug. In grooves and linear grooves;

Step 3: Press and fix the pressure pad into the cavity, and the annular protrusion and the linear protrusion on the lower surface of the pressure pad are respectively embedded in the annular groove and the linear groove on the lower surface of the rubber plug;

Step 4: Cover the upper surface of the outer cover with the film and weld it to fix it. The wings of the film are bent to cover the side of the outer cover.

Adopt above-mentioned technical scheme, the beneficial effect of the utility model is:

The combination cover of the utility model has only one rubber plug chamber, which simplifies the production process of the product and reduces the production cost; And it has a rubber stopper pressure pad, which not only realizes the fixation of the rubber stopper, but also separates the dosing depression and the infusion depression through the cooperation of the protrusion in the middle part and the groove in the middle part of the rubber stopper to avoid pollution; And the structure of the rubber stopper pressure pad is optimized, so that the three are closely matched, and the overall structure is firm and sealed; the film is sealed to ensure safety; the use only needs to tear off the film, which is easy to operate. In addition, the utility model adds a pressure pad to the upper surface of the rubber plug, which on the one hand ensures the stability of the rubber plug in the rubber plug chamber, and on the other hand avoids a large area of the rubber plug being exposed to the air, reducing the possibility of pollution . The traditional circular hole has a vertical hole wall, and it is easy to form a dead angle at the contact position between the hole wall and the rubber plug, and it is easy to cause the accumulation of impurities such as dust, causing the needle to be blocked when the needle touches such a dead angle. The diameter of the circular hole on the pressure pad in the utility model gradually increases from the upper surface of the pressure pad along the thickness direction of the pressure pad to form an inclined hole wall. Such a design can not only reduce the possibility of dust falling into dead corners to a certain extent It can also prevent medical staff from touching the dead corner of the needle when infusion or dosing, further ensuring hygiene.

Description of drawings

Fig. 1 is the perspective view of the film cover of the present utility model;

Fig. 2 is the top view of the film cover of the present utility model;

Fig. 3 is a sectional view along the A-A direction in Fig. 2;

Fig. 4 is a perspective view of the outer cover of the film cover according to the present utility model;

Fig. 5 is a top view of the outer cover of the film cover according to the present utility model;

Fig. 6 is a sectional view along the B-B direction in Fig. 5;

Fig. 7 is the top view of the rubber plug of the film cover according to the present utility model;

Fig. 8 is a sectional view along the C-C direction in Fig. 7;

Fig. 9 is a perspective view of the pressure pad of the film cover according to the present invention;

Fig. 10 is a top view of the pressure pad of the film cover according to the present utility model;

Fig. 11 is a bottom view of the pressure pad of the film cover according to the present invention;

Fig. 12 is a side view of the pressure pad of the film cover according to the present invention;

Fig. 13 is a sectional view along the D-D direction in Fig. 10;

Fig. 14 is a perspective view of the film sticking of the film sticking cover according to the present invention.

Explanation of reference signs:

1 Outer cover, 11 Outer cover body, 12 Protrusion, 121 Cavity, 122 Opening, 123 Flange, 124 V-shaped groove, 13 Interlayer, 131 Annular protrusion, 132 Linear protrusion, 2 Rubber plug, 21 Round Shaped depression, 22 annular grooves, 23 linear grooves, 3 pressure pads, 31 annular protrusions, 32 linear protrusions, 33 annular bosses, 34 circular holes, 4 film, 41 film main body, 42 wings.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It can be seen from Figures 1-3 that the film-attached cover of the present invention includes an outer cover 1 , a rubber plug 2 , a pressure pad 3 and a film-attached film 4 . As shown in FIG. 3 , the rubber plug 2 and the pressure pad 3 are arranged inside the outer cover 1 , and the film 4 covers the upper surface and side surfaces of the outer cover 1 .

4-6 describe the specific features of the outer cover 1 of the film cover according to the present invention. The outer cover 1 comprises a substantially cylindrical outer cover body 11, a protrusion 12 above the outer cover body 11 with an opening 122 on the upper surface, and a partition between the outer cover body 11 and the protrusion 12 13, wherein the protrusion 12 and the spacer 13 jointly define a cavity 121 for accommodating the rubber plug 2 and the pressure pad 3. Preferably, the diameter of the outer cover body 11 is 36 mm. There is a flange 123 extending upwards perpendicular to the upper surface on the edge of the top of the protruding portion 12. This flange 123 is used to protect the film 4 pasted on the upper surface of the outer cover 1 to prevent the edge of the film 1 from being damaged by external factors such as scratches and wear. damage. Preferably, the middle position of the flange 125 has a V-shaped groove 124 . During use, the film 4 can be divided into two parts by the V-shaped groove 124, so that the film above the drug dosing area or the infusion area can be selectively torn off, so as to realize drug dosing or infusion, making it more safe and hygienic. As shown in FIG. 6 , the spacer 13 is used to support and fix the rubber stopper 2 .

Figures 7-8 describe the specific features of the rubber stopper 2 of the film cover according to the present invention. Both ends of the rubber plug 2 are arc-shaped, and the middle part is rectangular. The two ends of the upper and lower surfaces of the rubber plug 2 respectively have two circular depressions 21, which can be used for infusion and dosing respectively. The upper and lower surfaces of the rubber plug 2 respectively have an annular groove 22 at the edge and a linear groove 23 in the middle, and the lower surfaces of the spacer 13 and the pressure pad 3 respectively have ring grooves 22 and linear grooves. The annular protrusions 131, 31 and linear protrusions 132, 32 provided by 23 are inserted into the annular grooves 22 and linear grooves on the upper and lower surfaces of the rubber plug respectively by inserting the annular protrusions 131, 31 and the linear protrusions 132, 32 23 to locate and fix the rubber plug 2. Preferably, the edges of the annular protrusions 131 , 31 and the linear protrusions 132 , 32 are provided with arc transitions to facilitate the insertion of the protrusions.

9-13 describe the specific features of the pressure pad 3 of the film cover according to the present invention. In addition to the above-mentioned annular protrusion 31 and linear protrusion 32 , the pressure pad 3 is also provided with an annular boss 33 whose size is larger than the opening 122 , and the annular boss 33 is used to fix the pressure pad 3 in the cavity 14 . In addition, the pressure pad 3 also has two circular holes 34 corresponding to the circular depressions 21 . Preferably, the diameter of the circular hole 34 gradually increases from the upper surface of the pressure pad 3 along the thickness direction of the pressure pad to form an inclined hole wall to further ensure hygiene.

Fig. 14 describes the specific features of the film 4 of the film cover according to the present invention. The sticking film 4 comprises a sticking film main body 41 and wings 42 on both sides of the sticking film main body 41, wherein the sticking film main body 41 is used to cover the upper surface of the outer cover 1, and the wings 42 are bent along the edge without the flange 125 on the outer cover 2 to cover Part of the side of the cover 1.

The preparation of the film cover for the infusion bag described in the utility model mainly includes the following steps: first, the outer cover 1, the rubber stopper 2, and the pressure pad 3 are respectively formed by an injection molding process, and the aluminum foil or plastic film is punched into the film 4 at the same time. shape, wherein the outer cover 1 is made of PP material, the rubber plug 2 and the pressure pad 3 can be made of isoprene rubber; secondly, the formed rubber plug 2 is pressed into the cavity 121 of the protruding part 12 from the opening 122, By squeezing the rubber plug 2, the annular protrusion 131 and the linear protrusion 132 on the interlayer 3 are respectively embedded in the annular groove 21 and the linear groove 22 on the upper surface of the rubber plug 2; finally, the pressure pad 3 is pressed into and Fixed in the cavity 121, the annular protrusion 31 and the linear protrusion 32 on the lower surface of the pressure pad 3 are respectively embedded in the annular groove 21 and the linear groove 22 on the lower surface of the rubber plug 2, and then the film 4 is covered on the outside. The upper surface of the cover 1 is welded and fixed, and the wings of the film 4 are bent to cover the side of the outer cover 1 .

The above examples only express the implementation manner of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. A film cover, comprising an outer cover, a rubber plug, a pressure pad and a film, is characterized in that, The outer cover includes a substantially cylindrical outer cover body, a protrusion located above the outer cover body and having an opening on the upper surface, and a protrusion located between the outer cover body and the protrusion. a spacer, wherein the protrusion and the spacer jointly define a cavity for accommodating the rubber plug and the pressure pad; The rubber plug has a shape matching the cross-section of the cavity, and the rubber plug is fixed in the cavity close to the partition; The pressure pad is sealed and fixed above the rubber plug; The sticking film covers the upper surface and the side surface of the protruding part. 2. The film cover according to claim 1, characterized in that, the two ends of the rubber plug are arc-shaped, and the middle part is rectangular. 3. The film cover according to claim 2, characterized in that, two ends of the upper and lower surfaces of the rubber plug respectively have two circular depressions. 4. The film cover according to claim 2, characterized in that, the upper and lower surfaces of the rubber plug respectively have an annular groove at the edge and a linear groove in the middle, and the upper surface of the interlayer and the The lower surface of the pressure pad has an annular protrusion and a linear protrusion matching the annular groove and the linear groove respectively, and the annular protrusion and the linear protrusion are respectively inserted into the The rubber plug is positioned and fixed by the annular groove and the linear groove on the upper and lower surfaces of the rubber plug. 5 . The film sticking cover according to claim 4 , wherein the edges of the annular protrusion and the linear protrusion are both arc-shaped transitions. 6 . 6. The film sticking cover according to claim 1, characterized in that, the outer periphery of the pressure pad is provided with an annular boss with a size larger than the opening, and the annular boss is used to fix the pressure pad in the hollow. cavity. 7. The film cover according to claim 3, characterized in that, the pressure pad has two circular holes corresponding to the circular depression, the diameter of the circular holes is from the upper surface of the pressure pad gradually increases along the thickness direction of the pressure pad. 8 . The film cover according to claim 1 , wherein the protrusion has a flange extending upward perpendicular to the upper surface, and a V-shaped groove is formed in the middle of the flange. 9 . 9. The film cover according to claim 1, wherein the film comprises a film main body and wings on both sides of the film main body, wherein the film main body is used to cover the upper surface of the outer cover, so The wings are bent to cover part of the side of the outer cover.