TW200800311A - Ventil insbesondere fuir ein Brusthaubenset - Google Patents

Abstract

Disclosed is a valve comprising a valve seat (6) and a valve member (7) with a circular membrane (70). The valve member (7) is located above the valve seat (6) so as to sealingly close the same when resting on the valve seat (6). The valve seat (6) and the valve member (7) are provided with openings (64, 65, 71, 73) that are offset relative to each other and form a free passage when the membrane (70) of the valve member (7) is lifted. The membrane (70) of the valve member (7) encompasses elongate openings (71) that are evenly distributed along a circle within the periphery of the membrane (70), said circle preferably being provided with the same center as the membrane (70). The elongate openings (71) are separated from each other by means of webs (72) while the membrane (70) is embodied in a weakened manner adjacent to said webs (72). The inventive valve is inexpensive and easy to produce, reliable to use, and is subject very little deformation even during major changes in temperature while being suitable particularly for use in breast cup sets in order to reduce the dead volume.

Description

200800311 IX. Description of the invention: [Technical field to which the invention pertains] A valve of the invention. The present invention is also directed to pumping human milk. The invention is directed to the breastshield set (Brusthaubenset). Apply for a cap set of one of the citations of items 18 and 22. [Prior Art]

The second milk group and the pump pump... listen to the eight holes to pump out. They generally consist of a breastshield (Brusthaube), a first head and a second joint. The breastshield has a breastshield funnel for placing on the mother's breast λ, and the first joint portion is for connecting with a milk collection container: the two joints are for receiving a mechanical or electric pump, or for receiving - Pipette the line to the pump. To pump the breastmilk, the suction cap funnel should be placed as tightly as possible on the mother's breast and use the pump to create a vacuum in the cycle of the suction cap. In order to keep the space to be evacuated as small as possible, and to minimize the amount of Totvohnnen (dead volume), the breast cover is equipped with a stop milk container which is subjected to the pressure of the sucked milk.

Opening to the interior of the milk collection container, the door is opened and the space is closed when there is a vacuum for the evacuated volume of the remainder of the breastshield set. The unilaterally fixed membrane flap is effective for the interior of the container, but the suction cap set will be sucked for sanitary reasons. The valve has a valve seat that is held by a valve body (in one type). When the pressure of the incoming milk is large enough, it is open. Although such valves are practically expensive to manufacture. Because the market has a benefit, 5 200800311 The cover group is used only once or a few times, so the manufacturing cost must be reduced as much as possible. Since the breastshield set is used only a few times at a time, the individual components must be manufactured as cheaply as possible. In particular, the check valve is also the same, but the breastshield set is cleaned after each use, so the valve construction is as simple as possible and correspondingly easy to clean. In addition, it cannot be stretched during cleaning, and then it can still ensure sufficient sealing. The shape, design and material selection of the valve play an important role in achieving this. A typical breastshield set is made of plastic, in particular polyethylene (pE), polypropylene (PP), or polycarbonate (PC), wherein the valve body itself consists of silicone. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a valve which can be manufactured at a low cost, but which can be safely closed.

This purpose is achieved by using the inter-i feature of the patent application scope. The valve-valve according to the present invention has a valve seat and a valve body having a circular membrane, the membrane being disposed above the valve seat and sealing the valve seat to seal when resting against the valve seat, wherein The valve seat and the valve body have openings which are alternately arranged and form a free passage when the film of the valve body is lifted up. The opening of the film is arranged along the circumference of the film, wherein the center of the circle is approximately the center of the film, and the elongated opening is designed to be curved, wherein the longitudinal extent of the weir extends over the circle. They are separated by a frame strip. In other words, the elongated opening constitutes a common circle m to produce a smaller number of diameters of the ring, and the ring is provided with a frame strip. The film is designed to be thinner in the area adjacent to the frame strip. It is preferable to have exactly three such openings and exactly three frame strips, so that the film 6 200800311 is maintained in a three-point suspension manner. The thinner region can be a tight opening or thinned location, or a combination thereof. This thinned area is used to counteract the stress, so the functionality of the valve is ensured even after heating and cleaning. Good results were achieved with a τ-shaped close opening. There is an advantage in combining the double-thin regions with tight openings, that is, the closed frame strip constituting the valve has sufficient flexibility even after washing to round the film (匕 is constituted by an elongated opening) Quickly and in accordance with the standard to pick up and down. A cylindrical envelope is preferably formed on the membrane which is turned up through a collar of the valve seat (Kragen). If the inside of the envelope has an axially extending engraved portion and/or a circumferential groove, the stretching during cleaning can also be avoided. The above-described valve of the present invention is preferably used in the above-described types of breastshield sets in the embodiments described above and below. However, it can also be used for other items, especially for medical products. For example, it can be used as a drainage bag (Drainagebeutel) to suck body fluids, 10 or for various suction hoses. It is therefore another object of the present invention to provide a breastshield set that can be manufactured as cheaply as possible. This purpose is achieved by using the characteristics of item 18 of the scope of patent application. In order to comply with the hygienic regulations for multiple use, the breastshield set is generally disposable and can be used as an autoklavieren. However, recent hygienic requirements for saliva and personal use have increased, so the demand for some breastshield sets has been sizzled, and the breastshield set needs to be used only a limited number of times. This number of uses is generally limited to a single day. 7 200800311 It is therefore a further object of the present invention to provide a breastshield set that can only be used a limited number of times. The purpose of the seed is achieved by using a breastshield set having the characteristics of item 22 of the patent application.

At least a portion of the breastshield set of the present invention cannot be autoclaved. If this part is a valve body, it is enough. If the valve body is autoclaved and it will be stretched, the functionality of the entire breastshield set is no longer ensured due to lack of sealing and an increase in void volume. It is also possible to construct several parts (such as valve seat, breastshield joint and suction cup cover 4) from materials that are not treated by the pressure tank. Of course, other accessories such as suction roads can be used for materials that cannot be used for high pressure treatment. The solution of the present invention is obtained from the following observations. In general, the hospital (Spitaler) nursery station (sauglingsstati〇n) or maternity station (w0Chnerinnenstation) can self-clean, so the mother can reuse their own so far In addition, the mother or Mem can control it to see how many times the breastshield has been used and to dispose of it after a correspondingly short period of time. - In general, the departmental towel is cleaned, so they have to leave the baby-care station or the station~ station to go to the station the next day, and can no longer do the above control. If the breastshield set is prevented at this time For autoclave treatment, it can be used for a limited number of times as required. However, due to the fact that the valve body can no longer be autoclaved, the choice of materials is large and limited. Of course, the applicable material is a kind of bomb. Sexual polymer (TPE). However, this material has a high requirement for the shape of the valve body. 'When cleaning, it will not pull 8 200800311. According to the patent application scope! ~ Item 17 阙 meet these requirements. Other advantageous embodiments are found in the scope of the claims. Hereinafter, the subject matter of the present invention will be described with reference to preferred embodiments of the drawings. [Embodiment] Figure 1 shows a breastshield set of the present invention. (7) Screwed onto a collection of milk containers (1). A suction cap (3) is attached to the side of the suction cap joint (2) [it has a suction cap funnel (3〇)] and a suction line is fixed on the other side (4) = If the breastshield joint (2) is not used, for example, when the milk collection container (1) is filled with a guard, a closure cap (5) can also be screwed onto the milk collection container (1). It is shown how the above individual components are connected to each other. The milk collection β container (1) has a neck (10) with an external thread (U), and an inner thread (22) of the breastshield joint portion (2) A threaded insert (2 turns) can be screwed onto it. A joint neck (21) is formed through a short neck (24) The threaded insert (2〇). The joint neck (21) has a receiving opening (25) into which a “coupling joint 4” (3丨) of the breastshield (3) can be inserted. On the opposite end of the joint neck (21) there is a plug receptacle (not shown) for direct connection to the suction line (4). The coupling (40) can be used to connect the hose (4) The external breast pump. The breastshield (3) can also be integrally formed on the breastshield joint (2). In addition, the breastshield joint (2) can also have a receiving portion to accommodate a manual without a suction pipe plug. Or an electric motor. As shown in Fig. 2, there is a valve between the breastshield joint (12) and the milk collection capacity (1), which has a valve seat (6) and a fixed seat. The upper valve body (7), which should be placed in the joint of the breastshield. The valve seat (6) can be formed on the suction joint 9 (2008), or can be plugged into the associated receptacle (10). The associated valley portion (23) is inwardly projecting in the head 3 The form of the neck stretched out. Figure No. (26) indicates the Shangzheng sandal part for the milk collection container or milk. The valve seat (6) is shown in Figures 4a to 4e. It has a cover surface (61) which is circular and substantially or absolutely flat and a central opening (64) and a peripheral opening (65) in a surrounding collar (61) formed thereon. . The central opening (65) and constitutes a common circle, wherein the point coincides with the center of the circular cover. Preferably there are exactly three surrounding openings (65) in which the common circle is interrupted by the frame strip (66). As shown most clearly in the flap, the cover (61) protrudes beyond the collar (10) at the edge (62) of the one side. In addition, the collar (6〇) has a circumferential collar (63) in the lower region of the lunar face (61). This part can also be marked (beschriften). A related example is shown in Figure (67). The valve body (7) is shown in Figures 5a to 5k. This valve body (7) can be studped to the above seat. The valve is retained on the breastshield joint portion (2) by means of the projection (27) or preferably with a first groove (77) or a second groove (78). The valve body (7) has a substantially basic shape substantially the same as the valve seat (6), in other words, it has a substantially flat circular membrane (70) surrounded by a surrounding cylindrical shape (75). However, the outer side of the membrane (70) [which faces away from the valve seat (6)] may also have a conjunctival membrane (70) with regions (74) that are designed to be weak. These weak parts—the façades are small due to the small material thickness of these areas (74), as shown in Figure 5a. It is a close-up opening (73). These thinner regions or depressions (74) are thickened and transitioned to the rest of the membrane. As can be seen in Figure 5a, the edge portions of these areas (7 buckets) are designed as ramps. This can also be seen in Figure 5e. 200800311 As in the case of ® 5b(4)(4), the film (7G) is mainly designed in the form of a face that is connected to its shell... until a few openings (71) (73). It is fixed in a three-point suspension system, in particular the opening (71) (73) only exists in the surrounding area, but not in the central area. The film (70) shown has two types of openings (five) (73): an elongated narrow opening (71) and a small, tight opening (73). - The elongated opening (7) is placed around the membrane (7〇) in the surrounding area. In the illustrated example, there are two openings of the same length and size (7 inches), each of which extends over an angular range of less than 丨20❹. However, there may be other numbers of openings. However, the 5H opening (71) is preferably provided in a rotationally symmetric manner around the film. We form a common circle, and the midpoint (center) of the circle should coincide with the film (7〇) or the midpoint of the cover. This circle is interrupted by the frame (72). A smaller opening (73) is provided in the area adjacent to the frame strip (72) and the area adjacent to the surrounding opening (71). There should preferably be a small, tight opening (73) between each elongated opening (71). Thus in this case there are three such close openings (73) as well. These openings (73) are preferably T-shaped with a foot and a frame extending vertically through the foot. Here, the foot is directed toward the center point of the frame strip and the film (70), and the beam is outwardly directed toward the periphery. The foot is preferably terminated on the outside of the circle formed by the peripheral opening (71). The individual openings (73) should be on a circle whose center point coincides with the center point of the film. The beam should be designed to be curved in correspondence with this circle, as shown in Figure 5g. The T-shaped opening (73) is completely within the thinned region or recess. However, the recess (74) is preferably designed to be wider than the opening (73) itself in the region to the beam at the opening (T3). The membrane (75) of the valve body (7) is according to Figures 5c, 5i and 5k, and the outer side should be designed as a groove of 200800311 (should be two)

When disinfecting) the case of the shell stretching. Flat. However, the inside of the valve body (7) has at least (77) (78). In addition, there is at least one gap

The position is covered in the elongated opening (71). As shown in Fig. 4d and Fig. 5d, the 3 openings (65) are covered by a circular film [they]. The elongated opening (71) and the tight opening (73) are located in the outer edge region of the valve seat (6). As such, the valve is closed at normal pressure. If the pressure applied to the film cover sheet rises at this time, the film sheet uniformly bulges into the inner space of the milk collection container (1) and opens the opening (64) of the valve seat (64). Thus, the opening of the valve body (7) is also away from its abutment surface, thereby causing a passage from one side of the valve to the other. If the pressure applied to the inside of the membrane is removed, the membrane is lowered again to the valve seat and the check valve is closed. The individual components of the above described breastshield set are preferably made of a sterilizable and compressible material such as polypropylene (PP). However, at least a portion (especially the valve body) is made of a material that cannot be autoclaved, such as a thermoplastic elastomer (TPE). Preferably only the valve body is made of this material. Although the valve of the present invention is used in the specification for a breastshield set, it can also be used in other aspects, such as in a drain bag or drain container to draw body fluids, or for vacuum hoses or other medical or Other farmers 12 200800311 - set. A second preferred embodiment of the valve body (7) is shown in Figures 6a to 6c. It can be used with the above seat (6). The design of the valve body is the same as that of the first embodiment of the valve body (7) described above until an outer ring (79) (Wulst). In addition, the collar (79) should extend around the entire circumference of the envelope (75). However, the collar (79) can also be interrupted into sections. Similarly, it is also located in the edge region of the envelope (75) adjacent to the membrane (7〇). Due to the collar (79), the valve body (7) can be easily released from the valve seat (6) by hand because the collar (79) allows the surface to be better held, if the collar is not used (79) [Or in addition to the ring (79)] Alternatively, a grooved door can be used. The surface of the letter can also be provided with a Noppen, a recess or an axially extending rib. The valve of the present invention can be manufactured inexpensively and simply, is reliable in use, and is rarely deformed when a large temperature fluctuates. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of the breast pump set, including a milk collecting container, a suction line and a closing cover; Fig. 2 is an exploded view of the breast pump cover of Fig. 1; Fig. 3 is a suction cup joint portion Figure 4a is a perspective view of a valve seat; Figure 4b is another perspective view of the valve seat of Figure 4a; Figure 4C is a side view of the valve seat of Figure 4a; Figure 4d is a top view of the valve seat of Figure 4a; Figure 4e 2a is a side view of a valve seat of FIG. 4a; FIG. 5a is a side view of a valve body; 13 200800311 FIG. 5b is a side view of the valve body of FIG. 5a; FIG. 5c is a valve body of FIG. Figure 5d is a bottom view of the valve body of Figure 5a; Figure 5e is a perspective view of the wide body of Figure 5a, Figure 5f is another perspective view of the valve body of Figure 5a; Figure 5g is a view of Figure 5b Figure 5h is an enlarged portion Q view of Figure 5d; Figure 5 is an enlarged view of one of Figure 5c; Figure 5k is an enlarged view of Figure 5c; Figure 6a is a second view A side view of the valve body of the embodiment; - Fig. 6b is a cross-sectional view through the valve body of Fig. 6a; Fig. 6c is an enlarged view of Fig. 6b. [Explanation of main component symbols] (I) Milk collection container (10) Neck (II) Thread • (2) Suction cup joint (20) Threaded insert (21) Connector neck (22) Internal thread (23) Valve housing Part (24) neck (25) receiving opening (26) stop 14 200800311

(27) (3) (30) (31) (4) (40) (5) (6) (60) (61) (62) (63) (64) (65) (66) (67) (7 (70) (71) (72) (73) (74) (75) (76) Padded suction cup suction cup hopper funnel coupling neck suction line coupling closure cap seat collar ring cover edge gasket center opening Peripheral open frame strip label valve body membrane elongated opening frame strip tight opening recessed shell shell notch 200800311 (77) first slot (78) second slot (79) collar

Claims (1)

200800311 X. Patent application scope: K A valve body with a valve seat (6) and a-circular membrane (70) (7) above the m ^ (6) and when the reclining # on the valve seat (6) will be wide The seat is sealed and sealed, wherein the valve seat (6) and the valve body (7) have openings (64) (65) (71) (73), which are staggered with each other and the valve body (7) of the valve body (7) is lifted up. a free passage' characterized in that the membrane (7) of the valve body (7) has an elongated opening (7) uniformly distributed along a circle around the membrane (7〇) in which the B1 heart of the circle is approximately opposite to the membrane (10) The centers are the same, the elongated openings (7)) are spaced apart from each other by a frame strip (22), wherein the film (7〇) is designed to be weaker in the area adjacent to the frame strip. - 2) The valve of claim 1 wherein the round midpoint coincides with the midpoint of the circular membrane (70). 3. The valve of claim 1 or 2, wherein: the elongated opening (71) constitutes a common ring having a width that is several times smaller than the radius of the car X of the ring, and A frame strip (72) is provided. _ 4. For the valve of claim 1 or 2, wherein: there are two elongated openings (71) and exactly three frame bars (72). A valve of claim 1 or 2, wherein: a tight opening (73) abuts the frame strip (72). 6. The valve of claim 5, wherein: the tight opening (73) is designed in a T shape. 7. The valve of claim 5, wherein: the tight opening (73) is provided in the region of the weakened portion (74) of the membrane (70). 8. The valve of claim 6 of the patent scope, wherein: 17 200800311 the T-shaped opening + ^ ) each has a foot with a t extending perpendicularly to the foot, the beam facing the frame strip (72) and along the diameter Point to the midpoint of the circle toward the film (7〇). 9. The valve of claim 1 or 2, wherein: the valve (7) has a cylindrical shell (75) surrounding the membrane (7 turns). 1. A valve according to claim 9 wherein: "X film (70) up to the elongated opening (7 〇 and tight opening (7)) and the weakened area is designed as a flat closed diaphragm shape <, the periphery thereof is connected to the cylindrical case (75). 11. The valve of claim 9, wherein: the G (75) has at least one notch (76) parallel to the cylindrical shape The cylindrical central axis of the housing (75) extends 12. The valve of claim 9 wherein: the inner side of the cylindrical housing (75) is provided with an at least partially circumferential groove (77) (78) 〇 13) The valve of claim 9, wherein: the cylindrical envelope (75) is provided with an at least partially surrounding collar (79) 〇 14 • a valve according to the scope of claim i or 2 Wherein: the valve seat (6) has a flat surface (61) having a central opening (64), and an opening (5) surrounding the central opening (65), wherein the peripheral opening (65) is framed (66) Interruption 15. If the valve of the scope of i or 2 of the patent application is applied, where at least a part of the valve (7) cannot be used as a high pressure The kettle treated material is made of 0 18 200800311 16 · The valve of claim 15 wherein: the valve body (7) is made of a material which cannot be processed by an autoclave. The valve, wherein: the valve body (7) is made of a thermoplastic elastomer (TPE). 18. A breastshield set for pumping human breast milk, wherein the breastshield set has a breastshield (3) and a breastshield a joint portion (2) and a valve (6) (7) having a threaded insert (20) for engaging with a milk collection container (1) for use in breast milk Limiting the ineffective volume when pumping out, characterized in that: the valve (6) (7) is the valve of the scope of the patent application. 19. The breastshield set according to the patent scope of item ι8, wherein: the valve seat of the valve (6) can be inserted into or integrally formed on the breastshield joint (2). 20. The breastshield set according to claim 18, wherein: the breastshield joint portion (2), the breastshield (3) The valve seat is made of a material that can be treated as a high pressure dad, and the valve body (7) is made of a material that cannot be processed by an autoclave. For example, in the breastshield set of claim 18, wherein the material which can be used for autoclaving is polypropylene (pp), and the material which cannot be treated by pressing is thermoplastic elastomer (TPE). A breastshield set for pumping human breast milk has a breastshield (3), a breastshield joint (7) and a valve (6) (7) having a threaded insert (20) Connected to a collection of milk containers (1) for limiting the ineffective volume when the breast milk is discharged, wherein the valve has a valve seat and a valve body (7) that closes the valve seat (6), characterized in that: The breastshield set has at least one part of 200800311 made of a material that cannot be treated with high pressure 23. 23. For the breastshield set of claim 22, the valve body (7) is made of a material that cannot be autoclaved; For example, in the breastshield set of claim 22, the «Hai nipple (3) and the nipple joint part (2) are designed together as one body. XI, Fig.: 20