DE7934501U1 - CONNECTOR - Google Patents

Description

- 3 - Outer friction

Oils invention relates to a connector for connecting from different Sohläuohen, for example from SohlMuchen, who during the blood transfusion by a doctor to be used by a patient, as well as by gas and Water supply hoses.

Known hose connectors for blood transfusion consist of a piece of glass tube with a constant diameter over its entire length, with a blood transfusion tube is connected to each end of the tube by being attached to the respective End of the connector is fitted.

It has therefore hitherto been necessary to use a connector choose the one that fits the diameter of the tubing to be connected, so that a variety of Connections with different diameters must be in stock.

If, in addition, two hoses with different diameters are to be connected, one of which has a diameter that is smaller than the outer diameter of the connector, the end of the hose to be connected must be widened with a smaller diameter and then fitted onto the connector. In this case it is difficult to fit the hose onto the connector and the difficulty of connecting and removing the hose is further exacerbated by the fact that the connector itself is made of glass or a similar inflexible material. The attached end of the hose will continue

<< <1 lit

• Il 4 ««

«Ι ι ♦ ·;

I I · I I I I * · ·

summarized lkfc öde if in its inner diameter permanently enlarged.

In view of the disadvantages just described, it is conventional Connecting pieces, the object on which the invention is based is to provide a connecting piece deliver / that allows / a variety of different hoses, especially two hoses with different To connect diameter by means of a single connector / with the hoses easily connected and can be deducted.

For this purpose, the connection piece according to the invention is through a Pipe piece made from a high molecular weight that can be easily cut Material marked / which has a part with the largest diameter and parts with a smaller diameter / the extend longitudinally from both sides of the largest diameter part and toward the free ends of the connector have an ever smaller diameter.

The invention provides, in particular, a connecting piece that is made of a high molecular weight pipe by a piece of pipe easily cuttable material is marked, which has a central part with the largest diameter and has a number of smaller diameter parts which step up from each side of the central part extend out and on their respective free ends to have an increasingly smaller diameter, being between adjacent ones Parts shoulders are formed.

A tubular body is made from under a piece of pipe made of a high molecular weight material that can be easily cut a material that can be easily cut through with a knife, scissors, or other cutting device

ti lit "II · ··!} ··

Il f il *. » T J

11 * 1 4 · I ItI

ill · * ·

ι- I III IHI »Il

-S-

can, for example, from a soft thermoplastic Synthetic material, in particular made of a vinyl chloride resin and a PolyMthyienhaiiz or made of rubber.

The part with the largest diameter of the connecting piece can only have a cylindrical shape. If it is provided with a bellows part and is thus designed to be flexible, the connection of the hoses is further facilitated, while at the same time the handling of the interconnected hoses is improved due to the flexibility of the connecting piece itself on the bellows part.

The smaller diameter parts of the connector that extend lengthways from each side of the part with extend from the largest diameter and have an ever smaller diameter towards the free end are in formed one piece with each other, with shoulders in each case between adjacent parts. The parts with smaller diameter each can either have a cylindrical shape with constant diameter over its entire Length or have a cylindro-conical shape. A conical shape is from the standpoint of ease of connection of tubing preferred.

When using the connector, its smaller diameter end parts are cut off until the outer diameter of the outermost parts is the inner diameter of the two hoses to be connected is equivalent to. Then the two hoses are fitted onto the respective end parts and are attached Ends pressed against the respective shoulders to complete the connection of the two hoses.

- 6 -

The connecting piece can also be used to connect soles for medical treatment and of hoses for connecting gas pipes and water supply hoses to be used »

The following are preferred exemplary embodiments of the Invention explained in more detail with reference to the accompanying drawing

Fig. 1 shows a partially broken perspective view of an embodiment of the connector according to the invention.

FIG. 2 shows, in a partially sectioned side view, the application of the one shown in FIG. 1 Connector.

3 shows a modified exemplary embodiment in a partially broken perspective view of the connector shown in FIG.

FIG. 4 shows in a partially sectioned side view the application of the one shown in FIG. 3 Connector.

In Figs. 1 and 2, a connector A is shown, which is made of a soft thermoplastic synthetic resin material exists and is tubular. The connector A has different diameters, i.e. in individual, a structure of a part 1 with the largest diameter and parts 2, 3, 4 ... with a smaller diameter, which extend in the longitudinal direction from each side of the part 1 with the largest diameter to the outside and towards the free ends always one

Iff ■> I (

have a smaller diameter. Ring shoulders 1 ¹ , 2 ', 3', 4 '... are formed at the boundaries between adjacent parts 1, 2, 3, 4 ... so that when two hoses B and C with different diameters are connected to one another, the face of the connected end of each hose engages the corresponding shoulder.

In an application example of the connection piece A, the parts 3, 4 and 5 with a smaller diameter, the diameter of which is smaller than the diameter of a hose B with a large diameter to be connected, are cut off on one side, as shown in FIG. The hose B with a large diameter is then fitted onto the part 2 with a smaller diameter, the diameter of which corresponds to that of the hose B, and the end face of the hose is brought into engagement with the annular shoulder 1 '. In this way, the large diameter hose B is connected to the connector A as shown in FIG. If the smaller diameter part 5 corresponds in diameter to another hose C with a smaller diameter, this smaller diameter hose C is fitted directly onto the smaller diameter part 5 and its end face is brought into engagement with the annular shoulder 4 ' to connect it completely to the connector A, as shown in FIG.

in this way two hoses B and C of different diameters are connected to the connector A.

Bo protrudes see that the connecting piece A auoh so

Il I I I j I I I Il Il I

it can be applied that parts 3, 4 or 5 with a smaller diameter are cut off in a suitable manner, the diameter of the two hoses B and C to be connected with different diameters are not and that hoses B and C are connected to parts 3, 4 or 5 with a smaller diameter, which correspond in diameter to hoses B and C. That is, the hoses B and C easily by means of a simple process that consists of parts 3, 4 or 5 with smaller diameter, whose diameter is smaller than the diameter of the two tubes B and C with different Diameter is to be cut off in a suitable manner.

3 and 4 show a modified embodiment of the connecting piece according to the invention. In this connection piece A ¹ , the part 101 with the largest diameter is provided with a bellows part 100 and is flexible and / or designed so that it can expand and contract, with parts 102, 103, 104 also being provided with a smaller diameter, which are extend in the longitudinal direction from each side of the largest diameter part 101 and have an ever smaller diameter in the direction of their respective free ends.

The smaller diameter parts 102, 103, 104 are tapered between their proximal ends 201, 301, 401 and their distal ends 202, 302, 402 ..., and shoulders 103, 104 ', 105 ... are at the boundaries between the ends with different diameters 202 and 301, 302 and 401, 402 and 501 .... of the adjacent parts with smaller ones

• Ill Il IMtI lilt Il I

to Il I ftf

<(Ill 111

• it · I ..M Il III

Diameters 102 and 103, 103 and 104, 104 and 105 are provided. The shoulders 102 'of the parts 102 with a smaller diameter on both sides of the part 101 with the largest diameter are formed by the opposite ends of the part 101 with the largest diameter. The shoulders 103 ″, 104 ^f , 105 ¹ and 103, 103 and 104, 104 and 105, ... When two hoses B ¹ and C 'of different diameters are connected to each other by means of a connector with this structure, as shown in Fig. 4, the connection ends of the Hoses locked or fixed in their position so that the hoses cannot easily be pulled off.

In an application example of the connector A ' the smaller diameter parts 105, 106, 107 and 108 on one side that have a diameter that is smaller than that of a hose B 'with a large diameter to be connected, cut off, as shown in Fig. 3 is shown.

The hose B ¹ with a large diameter is then connected to the connector A * in that the hose B 'is fitted onto the part 104 with a smaller diameter, the end of which on the side opposite the part 101 with the largest diameter has a diameter that corresponds to the Hose B 'fits, with the connection end of hose B * being gripped by shoulder 104', as shown in FIG. 4. Another hose C * with a smaller diameter is connected to the connector A ¹ by placing the hose C on the part 108

- 10 -

with a smaller diameter is fitted, the end 802 of which on the side opposite the part with the largest diameter fits in diameter to the hose C ′ with a small diameter, the connection end of the hose C being ^{grasped by the shoulder 108 1} , as shown in FIG. 4 is shown. The parts of the tubes B ¹ and C with a large diameter and a small diameter, which are connected to the connector A *, are deformed according to the conical shape of the conical parts 1Ό4 and 108 with a smaller diameter and held in close contact therewith, as shown in FIG Fig. 4 is shown. The ends of the tubes are also held in place by shoulders 104 'and 108 ¹ . The deformation and the tight fitting of the connected hoses prevents fluid from leaking, the hoses still not being able to be pulled off easily because their ends are fixed by the shoulders.

In this way, two hoses B and C of different diameters can be easily connected to the connector A ¹ . The parts with a smaller diameter, the diameter of which does not ^{match the two tubes B 1} and C * with different diameters, are cut off at points next to the corresponding shoulders.

Even if the ends of given parts with a smaller diameter on the side opposite the part with the largest diameter have a slightly larger diameter than the If both hoses have different diameters, the hoses can be firmly attached and connected

- 11 -

I I

I ι Il> I
I ·><

f. '

as long as the file has a smaller diameter honieöh trained. Selböt if they continue find a slightly smaller diameter on the side opposite the part with a large sea of water As the two hoses have, a tight and reliable connection can be obtained as long as the Smaller diameter parts are tapered in such a way that their ends are on the side of the part with the largest diameter a larger diameter than the two hoses have.

Claims (6)

POHLMANN & SCHMIDT Patent Attorneys Dr. Horst Schmidt cDipi.-mgJ Eckart Pohlmann coipi.-PhysJ Approved representative at the European. Patent Office 8000 Munich 40 Siegfriedstrasse 8 Telephone C089) 391639 Telex 5 213 260 pspa d DE 206/207 P / ht. Juro Wada, Tokyo, Japan Okayama Gomu Kogyo Kabushiki Kaisha, Tokyo, Japan Connector J-M-y CLAIMS 1. Connection piece, characterized by a pipe piece made of a high molecular weight material that can be easily cut, which has a part (1, 101) with a small diameter and parts (2, 3, 4 ...; 102, 103, 104 ...) with a smaller diameter which extend in the longitudinal direction from both sides of the part (1, 101) with the largest diameter and in the direction (ι
ι * Ml I on the free ends of the connecting piece have an ever smaller diameter. 2. Connection piece according to claim 1, characterized in that the part (1) with the largest Diameter has a cylindrical shape with constant diameter. 3. Connection piece according to claim 1, characterized in that the part (101) with the largest Diameter having a bellows part (100), so that the part (101) with the largest diameter is flexible and / or can expand and contract. 4. Connection piece according to claim 2 or 3, characterized in that the parts (2, 3, 4 ...) with a smaller diameter each have a constant diameter. 5. Connection piece according to claim 2 or 3, characterized in that the parts (102, 103, 104 ...) with a smaller diameter each have a conical shape towards Auscen. 6. Connection piece according to one of claims 1 to 5, characterized in that it consists of consists of a soft thermoplastic synthetic resin material.