JP2002028251A - Medical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide medical equipment having a highly reliable connector with which the connecting processing of the connector and a tube may be easily confirmed, and the leakage from the tube and the disengagement of the tube is surely prevented before use. SOLUTION: This medical equipment has the connector 1 having a juncture 4 which has a fitting part 2 on one end side and is connected and fixed with the tube 3 by means of a colored adhesive 10 to other end side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube in which one end is fitted to a part such as a three-way valve or a filter for administering a medicinal solution or infusion to a patient, a catheter, etc., and a medicinal solution flows to the other end. And a medical device having a connector connected thereto.

[0002]

FIG. 1 is a plan view of a connector of a medical device.
FIG. 2 is an enlarged sectional view thereof. In the figure, reference numeral 1 denotes a connector made of a transparent plastic material such as polycarbonate (PC) or polyethylene terephthalate (PET), for example, a bottomed cylindrical fitting into which each part such as a three-way valve or filter or a catheter fits. It is composed of a part 2 and a substantially cylindrical connecting part 4 to which the tube 3 is connected, and the two 2 and 4 are formed integrally.

The fitting portion 2 is provided with an insertion tube 5 which is communicated with the inner cavity 4a of the connecting portion 4 and has one end protruding from the upper end of the fitting portion 2 at a substantially central portion inside the bottom portion. Inside the joint portion 2 is formed a screw portion 6 into which each part, a catheter and the like are screwed and fitted. The connecting portion 4 has a concave portion 7 having a diameter larger than that of the lumen 4a at a substantially central portion on the bottom side, into which an end of the tube 3 is fitted and connected and fixed via an adhesive 9, and a connector on the outer wall. A pair of wings 8 are provided for facilitating the operation of 1. The tube 3 is
For example, it is made of a soft plastic material such as PC, polyvinyl chloride (PVC) or acrylonitrile butadiene styrene resin (ABS resin).

[0004] In the connector 1 configured as described above, for example, a screw portion 6 of a fitting portion 2 is screwed and fitted to one end of a three-way valve (not shown). At this time, one end protruding from the upper end of the fitting portion 2 of the insertion tube 5 is inserted into the lumen at one end of the three-way valve. Next, the drug solution that has passed through the lumen 3a of the tube 3 is sent to the three-way valve via the insertion tube 5, and the drug solution is sent from the other end of the three-way valve to each part, catheter, and the like connected to the three-way valve. Administer the drug solution.

[0005]

In the medical device having the connector 1 as described above, when the end of the tube 3 is connected to the concave portion 7 of the connecting portion 4 of the connector 1, the medical device is bonded and fixed with an adhesive 9. . For the adhesive 9, for example, cyclohexanone or tetrahydroxyfuran is used, and the color is transparent. Connection 4 of tube 3
Is connected to the concave portion 7 of the connecting portion 4 with an adhesive, so that the physical fitting is weak and the adhesion of the adhesive 9 is too small. Alternatively, disconnection of the tube 3 from the connector 1 may occur, which may lead to a medical accident. For this reason, it is essential that the connection between the connection portion 4 and the tube 3 is securely performed. However, since the adhesive 9 is transparent, the application state is difficult to understand, and whether or not the connection processing is performed reliably. It was very difficult to judge. Further, in some cases, it is necessary to perform a destructive test or the like for confirming the connection condition, and there is a problem that it takes a considerable amount of time and effort to manufacture a medical device having such a connector 1.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to easily confirm a connection process between a connector and a tube, and to surely prevent a leak or disconnection of a tube before use. It is an object of the present invention to provide a medical device having a highly reliable connector that can be used.

[0007]

A medical device according to the present invention has a connector having a fitting portion on one end and a connecting portion on the other end to which a tube is connected and fixed via a colored adhesive. It has.

In the medical device according to the present invention, a colored adhesive is formed by an organic solvent alone in which a pigment or a dye is dissolved or an organic solvent in which a polymer substance colored by a pigment or a dye is dissolved. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
Instead of the transparent adhesive 9 made of an organic solvent or the like used in the case of connection with the above, coloring such as a 7% polyvinyl chloride (PVC) -containing cyclohexanone solution colored with a pigment or dye such as phthalocyanine green is used. The adhesive 10 is a green colored adhesive composed of a combination of an agent, a solute, and a solvent.

When connecting the connecting portion 4 of the connector 1 and the tube 3, first, an adhesive 10 is applied to either the inner circumferential surface of the recess 7 of the connecting portion 4 or the outer circumferential surface of the end of the tube 3. I do. At this time, since the adhesive 10 is colored green, it is easy to leave the adhesive 10 on the inner peripheral surface of the concave portion 7 of the connecting portion 4 or the outer peripheral surface of the end of the tube 3 or to reduce the amount of application. To be discovered. Then, tube 3
Is inserted into the concave portion 7 of the connecting portion 4, the adhesive 10 spreads substantially evenly between the outer peripheral surface of the end portion of the tube 3 and the inner peripheral surface of the concave portion 7 of the connecting portion 4, and a part of the adhesive is connected. The adhesive is applied while protruding from the end of the concave portion 7 of the portion 4. After bonding, tube 3
The presence of the adhesive 10 which is colored green is visually confirmed over the portion where the end portion is bonded to the concave portion 7 of the connection portion 4, that is, over the outer peripheral surface of the end portion and the entire circumference of the inner peripheral surface of the concave portion 7. If the adhesive 10 does not extend over one round, the connection may be insufficient, so that it is excluded as a defective product.

In the connector 1 according to the embodiment having the above-described configuration, for example, the screw portion 6 of the fitting portion 2 is screwed to one end of a three-way valve (not shown) as in the case of the conventional example. And fit. Next, the drug solution that has passed through the lumen 3a of the tube 3 is sent to the three-way valve via the insertion tube 5, and the drug solution is sent from the other end of the three-way valve to each part, catheter, and the like connected to the three-way valve. Administer the drug solution. At this time,
Since the connection portion 4 of the connector 1 and the tube 3 are securely connected, there is no risk of leakage of a chemical solution or the like from the connection portion or detachment of the tube 3.

Since the connection between the connecting portion 4 of the connector 1 and the tube 3 is performed using the adhesive 10 colored green, the inner peripheral surface of the concave portion 7 of the connecting portion 4 or the end of the tube 3 is used. The presence or absence of the adhesive 10 on the outer peripheral surface of the
It is possible to easily find out the unpainted state and the insufficient amount of application, and visually check the adhesion state between the connection portion 4 and the tube 3 after adhesion. This makes it possible to easily sort defective products such as leaks and detachment of the tube 3 before use, and is particularly effective for medical instruments that maintain a sterile condition. In addition, there is no need to perform a destructive test or the like, so that time and labor in manufacturing can be reduced. Furthermore, not only on the manufacturing side but also on the user side, the state of the connection processing can be confirmed, and the occurrence of medical accidents can be further prevented.

In the above embodiment, the adhesive 10
Is composed of a combination of a colorant, a solute and a solvent.
The colorant, the solvent, and the characteristics of the solvent can be appropriately changed as long as the connection with the tube 3 and the coloring of the portion can be performed. Although the case where the adhesive 10 is colored green has been described, the present invention is not limited to this. The color can be changed to another color as long as the connection state and the like can be seen and determined at a glance.

Further, in the above-described embodiment, the fitting portion 2
Although the connector 1 having the insertion tube 5 has been described as an example, the fitting portion in which the insertion tube 5 and the screw portion 6 are omitted, and a locking piece for fitting each part or the like is provided on the outer periphery of the tip is provided. A connector of various shapes such as a connector having the same may be used. In this case, the same effect can be obtained.

[0015]

As described above, the medical device according to the present invention comprises:
The connector has a connector having a fitting portion on one end side and a connecting portion to which the tube is connected and fixed via a colored adhesive on the other end side. Further, the medical device according to the present invention,
The colored adhesive is formed by an organic solvent alone in which a pigment or a dye is dissolved, or an organic solvent in which a polymer substance colored by a pigment or a dye is dissolved.

Thus, when connecting the tube and the connecting portion, it is possible to easily find out the presence or absence of the adhesive on the connecting portion, the unapplied adhesive and the insufficient amount of the adhesive, and the like. The state of adhesion to the tube can be visually confirmed. Therefore, it is possible to easily sort defective products such as leaks and detached tubes before use, and it is particularly effective for medical instruments that maintain sterility. In addition, since the adhesion state can be visually checked, there is no need to perform a destructive test or the like, which reduces the time and labor required for manufacturing, and allows the user as well as the manufacturing side to check the connection process. A medical device having a highly reliable connector that can further prevent occurrence of an accident can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a connector of a medical device.

FIG. 2 is an enlarged sectional view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Fitting part 3 Tube 4 Connection part 10 Adhesive

Continued on the front page (72) Inventor Masaki Ogawa 5-27-7 Sendagaya, Shibuya-ku, Tokyo Japan Brunswick Bldg. Japan F-term (reference) 4C066 AA07 CC01 JJ02 JJ10

Claims (2)

[Claims] 1. A medical device comprising: a connector having a fitting portion on one end side and a connector portion on the other end side to which a tube is connected and fixed via a colored adhesive. 2. The method according to claim 1, wherein the colored adhesive is formed of an organic solvent alone in which a pigment or a dye is dissolved or an organic solvent in which a polymer substance colored with a pigment or a dye is dissolved. Medical tools.