JP2005052375A - Y-shaped connector and catheter with y-shaped connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a catheter indwelling for collecting urine, capable of speedily and accurately switching channels when the catheter is used for collecting urine, injecting washing solution, collecting used washing solution and collecting urine again in this order. <P>SOLUTION: An insertion tube 10 and an extension tube 11 are connected with a Y-shaped connector 1 with a Y-shaped channel 2, and a branch tube branches out of the Y-shaped connector 1. The Y-shaped connector 1 has a first valve mechanism 6, a second valve mechanism 7 and a third valve mechanism 8 corresponding to an insertion tube connection port 3, an extension tube connection port 4 and a branch tube connection port 5 respectively for opening/closing the ports 3, 4 and 5 separately. A urine collection bag 12 is connected to the tip of the extension tube 11, and a cap 13 is attached to the tip of the branch tube. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique of a catheter equipped with a Y-shaped connector that is preferably used in the medical field.

A catheter equipped with a Y-shaped connector represented by a urinary catheter, a gastric tube catheter, etc., inserts an insertion tube into the body and discharges foreign matter and liquid from the body through an extension tube, while via a branch connector, It is also used to inject cleaning fluids and nutrients.
Taking a urinary catheter as an example, in patients who have difficulty in urinating by themselves, the insertion tube is placed in the urethra until the tip reaches the bladder, and the urine in the bladder is placed in the urine collection bag. Used to discharge to
In addition, in order to prevent bacterial infection and clogging in the tube, a cleaning agent or a bactericidal agent is injected, and cleaning and sterilization of the route to the bladder and the bladder is also performed.
When performing cleaning and sterilization, inject the cleaning liquid and sterilizing agent with a syringe connected to the branch tube, but clip the extension tube to which the urine collection bag is connected so that the cleaning liquid and sterilizing agent do not flow to the urine collection bag during that time. In order to collect the cleaning liquid and the sterilizing agent, it is troublesome because the insertion tube side must be closed after suction with a syringe and the extension tube must be released.
Therefore, as described in Patent Document 1, a urethral catheter equipped with a three-way cock instead of a Y-shaped connector, and a gastric tube catheter equipped with a three-way cock as described in Patent Document 2 have been proposed.

Utility Model Registration No. 3045898 JP-A-7-96030

Since the catheter equipped with the three-way cock described in Patent Documents 1 and 2 enables switching of the flow path with one touch, the operability is improved.
However, since the flow path communicating with the branch tube is bent at a right angle, the coagulated blood and stomach contents are easily caught, which may cause trouble.
If a problem occurs, you must force it to pass through it by forcing it back and suck it, but if that doesn't work, undo the placement and reinsert a new catheter. And so on, it imposed a great burden on patients.
In that respect, in the Y-connector, since the branch tube and the insertion tube communicate smoothly, trouble does not easily occur even if there is a pipe resistance of the long insertion tube.
Further, since the three-way stopcock has a different connecting direction of the branch tube with respect to the Y-shaped connector, even if the Y-connector is used to it, it is easy to be confused if the three-way stopcock is unfamiliar with the three-way stopcock, and the possibility of an operation error cannot be denied.
Furthermore, the three-way stopcock can be switched efficiently by providing a single rotary valve body with an L-shaped flow path at the T-shaped connection where each tube intersects. Is Y-shaped and cannot be switched with such a valve body.

The present invention is a Y-connector that has succeeded in adding a flow path switching function comparable to a three-way stopcock to a Y-connector without impairing the original function of the Y-connector, and a catheter equipped with the Y-connector. The structure is a Y-shaped connector for connecting the extension tube to the insertion tube and branching the branch tube from the connection portion between the insertion tube and the extension tube, and opens and closes the insertion tube connection port. A Y-connector comprising: a first valve mechanism; a second valve mechanism that opens and closes an extension tube connection port; and a third valve mechanism that opens and closes a branch tube connection port; and And a catheter equipped with the Y-shaped connector.
The Y-shaped connector is provided with a slide-type valve body immediately before each port in the flow path formed in the housing, and the first valve mechanism is substantially in the sliding direction of the second or third valve mechanism. The switching operation of the second valve mechanism can be performed on the condition that the structure is orthogonal or the first valve mechanism is closed.

Since the branch tube is branched into a Y shape, the handling is not as confused as before, and a valve mechanism is provided for each port, so that each valve mechanism has a simple structure with only opening and closing operations.
In particular, by making the first valve mechanism substantially orthogonal to the sliding direction of the second and third valve mechanisms, it becomes easier to distinguish the first valve mechanism from the other two valve mechanisms, which port It is possible to clearly understand the relationship and characteristics between the port and the valve mechanism, such as which valve mechanism should be operated to open the valve, and the second valve on condition that the first valve mechanism is closed. If the mechanism can be switched, mistakes can be avoided.

  Hereinafter, a Y-connector according to the present invention and a catheter equipped with the Y-connector will be described with reference to the drawings with an example.

FIG. 1 shows a urinary catheter which is a representative model of a catheter equipped with a Y-shaped connector. 1 is a Y-shaped connector, and a Y-shaped flow path 2 is formed in a triangular body. Each end of the flow path 2 is provided with an insertion tube connection port 3, an extension tube connection port 4, and a branch tube connection port 5, respectively. The nipples 3a, 4a, and 5a provided with are projected.
In the flow path 2, a first valve mechanism 6, a second valve mechanism 7, and a third valve mechanism 8 are disposed for each flow path immediately before the ports 3, 4, and 5, respectively.

Any of the valve mechanisms 6, 7, and 8 adopts a slide system. The first valve mechanism 6 will be described as an example. A through hole 9 orthogonal to the flow path 2 is provided in the body, A cylindrical valve body 6a is inserted into the valve body 6a so that the valve body 6a intersects with the flow path 2, and the hole 2a formed in the valve body 6a by sliding operation is made to coincide with the flow path 2 or outside the flow path 2. It has a structure that opens and closes depending on the shape.
The first valve mechanism 6 is arranged such that the sliding direction of the valve body 6a is orthogonal to the operation directions of the valve bodies 7a and 8a in the second valve mechanism 7 and the third valve mechanism 8. .

An insertion tube 10 and an extension tube 11 are connected to the nipples 3 a and 4 a protruding from the ports 3 and 4, respectively, and a urine storage bag 12 is connected to the extension tube 11.
A cap 13 is attached to the tip of the nipple 5a protruding from the branch tube connection port 5.

  According to the Y connector formed in this way, the passage path of the fluid flowing through the Y-shaped flow path formed in the body can be freely changed by switching the valve mechanisms 6, 7, and 8. The urinary catheter equipped with this Y-shaped connector can perform urine drainage and urinary bladder cleaning by operating the valve mechanism.

An example of switching the valve mechanism will be described. In the indwelling state in which the insertion tube is inserted into the urethra, the third valve mechanism 8 is normally closed and the first valve mechanism 6 and the second valve mechanism 7 are released. Thus, the path from the insertion tube connection port 3 to the extension tube connection port 4 is opened (a in FIG. 3), and the urine in the bladder is discharged to the urine collection bag.
When cleaning is performed, the first valve mechanism 6 and the second valve mechanism 7 are closed to completely block the flow path (FIG. 3b), and then the cap of the branch tube connection port 5 is used. After removing 13 and connecting an injection device 14 containing a cleaning liquid such as a syringe, the first valve mechanism 6 and the third valve mechanism 8 are released (FIG. 3c).
As a result, a path from the branch tube connection port 5 to the insertion tube connection port 3 is opened, and the lavage fluid injected from the branch tube connection port 5 can be injected into the urinary bladder. , And suck out the used cleaning solution in the reverse route.
Finally, the first valve mechanism 6 is closed and the second valve mechanism 7 is opened to secure a flow path that turns back from the branch tube connection port 5 to the extension tube connection port 4 (d in FIG. 3). The used cleaning liquid in the instrument 14 is collected in a collection bag.

Changing the flow path is not a one-touch operation, but the fluid flows smoothly during discharge and injection, and the operation can be clearly grasped as each valve mechanism is shared. Absent.
In addition, although the branch tube connection port originally connects the branch tube, in the embodiment, the type in which the cap is attached has been described.

In addition, for example, a concave portion is provided on the side surface of each valve body in the second and third valve mechanisms so that each valve mechanism cannot be freely operated, and when the first valve mechanism is opened, via a link or the like An interlocking mechanism for inserting a pin into the concave portion of the valve body may be provided so that the second and third valve mechanisms can be operated on condition that the first valve mechanism is closed.
Furthermore, although the insertion tube is not a balloon built-in type, the catheter of the embodiment is also applicable to a type incorporating a balloon.

  In the embodiment, the first valve mechanism is made perpendicular to the sliding direction of the valve body with respect to the second and third valve mechanisms. It can be operated without a doubt.

  The means for distinguishing the valve mechanism can be determined not only by the difference in the sliding direction but also by color coding so that it can be judged at a glance, or by changing the shape and making it distinguishable only by touch.

  The shape of the body and port, the type of valve mechanism to be employed, and the like can be appropriately changed without departing from the spirit of the present invention, and can be applied to catheters other than urethral catheters and gastric tube catheters.

It is explanatory drawing which showed the urinary catheter equipped with the Y-shaped connector which concerns on this invention. It is explanatory drawing which showed the Y-shaped connector. (A)-(d) is a switching operation | movement explanatory drawing of a Y-shaped connector.

Explanation of symbols

  1 ... Y-connector 2 ... Flow path 2a ... Drilling hole 3 ... Insertion tube connection port 4 ... Extension tube connection port 5 ... Branch tube connection port 6 ... One valve mechanism, 6a ... Valve body, 7 ... Second valve mechanism, 7a ... Valve body, 8 ... Third valve mechanism, 8a ... Valve body, 9 ... Through hole, 10 ... Insertion tube, 11 .... Extension tube, 12 .... Urine collection bag, 13 .... Branch tube, 14 .... Infusion device.

Claims (4)

A Y-shaped connector for connecting an extension tube to an insertion tube and branching the branch tube from a connection portion between the insertion tube and the extension tube, and a first valve mechanism for opening and closing a port for connecting the insertion tube; A Y-connector comprising: a second valve mechanism for opening / closing the extension tube connection port; and a third valve mechanism for opening / closing the branch tube connection port. A slide-type valve body is provided immediately before each port in the flow path formed in the housing, and the first valve mechanism is substantially orthogonal to the sliding direction of the second or third valve mechanism. The Y-shaped connector according to 1. The Y-shaped connector according to claim 1 or 2, wherein the second valve mechanism can be switched on condition that the first valve mechanism is closed. The catheter equipped with the Y-shaped connector in any one of Claims 1-3.

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