JP2022179013A - Y-shaped connector - Google Patents

Abstract

To provide a Y-shaped connector which, when a plurality of introduction members such as catheters, guide wires or the like are inserted into a hemostatic valve, is capable of separately fixing an arbitrary one introduction member of the plurality of introduction members.SOLUTION: A Y-shaped connector 100 according to the present invention comprises: a body 10 which has a main tube 11 with a passage having introduction members 20 formed linearly such as guide wires, catheters or the like inserted therein along a longitudinal direction, and a side tube 12 extending laterally from the main tube 11; a cap 60 provided on the body 10; and an arm including an introduction member fixing part 83 for fixing the introduction members 20 inserted into the body 10 and a cap fixing part fixed to the cap 60.SELECTED DRAWING: Figure 2

Description

The present invention relates to Y-connectors.

Traditionally, Y-shaped connectors have been used to facilitate the insertion and withdrawal of guidewires and catheters into and out of the body. The Y-shaped connector is a Y connector in which a tubular main branch through which a catheter is passed is branched into a tubular sub-branch for injecting a liquid agent. is reduced, a fixing valve is provided to fix the catheter passed through the hole, a first hemostasis valve and a second hemostasis valve are provided that allow passage of the catheter in a wrapped state and can prevent outflow of blood, and 2004, 2003, 2003, 2003, 2003. In addition to providing a longitudinally movable cylindrical opener on the proximal end side of the main branch, it has been proposed that only the first hemostasis valve is arranged within the movement range of the opener (Patent Document 1).

However, such a Y-shaped connector has a problem that, when a plurality of introduction members such as guide wires and catheters are inserted to perform surgery, it is not possible to select and fix any one of the plurality of introduction members. rice field.

JP 2005-261759 A

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-described problems. It is an object of the present invention to provide a Y-shaped connector capable of separately fixing an arbitrary introduction member.

The present invention employs the following means to achieve the above objects.

The Y-shaped connector according to the present invention includes a main tube portion having a passage portion in the longitudinal direction through which a linearly formed introduction member such as a guide wire or a catheter is inserted, and a side tube portion extending laterally from the main tube portion. a main body having
a cap portion provided on the main body;
an arm having an introduction member fixing portion for fixing the introduction member inserted into the main body portion and a cap portion fixing portion attached to the cap portion;
characterized by comprising

In the Y-shaped connector according to the present invention, when there is an introduction member to be fixed outside the Y-shaped connector among the introduction members inserted into the main body, the introduction member is attached to the arm provided outside the main body. An introduction member can be secured to the portion. As a result, for example, when the catheter and the guide wire are inserted through the Y-shaped connector, the guide wire can be fixed to the fixing portion of the arm when the catheter wants to move but the guide wire does not want to move. Only the guidewire can be fixed with

Further, in the Y-shaped connector according to the present invention,
The arm may be detachable from the cap portion.

By adopting such a configuration, when the introduction member does not need to be fixed, it can be used as a normal Y-shaped connector by removing it.

Furthermore, in the Y-shaped connector according to the present invention,
The arm may be rotatably provided on the cap portion.

By adopting such a configuration, when the Y-shaped connector is gripped, it can be moved to a position that is easy to handle by moving the arm, and since there is no arm in the main body, it is similar to the conventional Y-shaped connector. can be gripped with a sense of

Furthermore, in the Y-shaped connector according to the present invention, the arm may have a side tube portion fixing portion that is fixed to the side tube portion.

By providing the side tube portion fixing portion, even if the arm is rotatable with respect to the cap portion, the arm does not rotate with respect to the main body portion, so that a fixed form can be maintained. By maintaining a constant configuration, a longer arm can be provided, thus avoiding obstruction when manipulating the introduction member.

Furthermore, in the Y-shaped connector according to the present invention, the arm may be made of a flexible member.

By fabricating the arm with a flexible member, when fixing the introduction member, the fixing portion can be moved to a position where it is easy to fix.

According to the Y-shaped connector of the present invention, when a plurality of introduction members such as catheters and guide wires are inserted into a hemostatic valve, a Y-shaped connector is provided that can separately fix an arbitrary introduction member among the plurality of introduction members. can do.

FIG. 1 is a perspective view of a Y-shaped connector 100 according to the first embodiment. FIG. 2 is a front view of the Y-shaped connector 100 according to the first embodiment. FIG. 3 is a cross-sectional view of the Y-shaped connector 100 according to the first embodiment. 4A and 4B are perspective views showing the hemostatic valve 30 of the Y-shaped connector 100 according to the embodiment, and FIG. 4C is a cross-sectional view. 5A and 5B are diagrams illustrating a method of attaching the arm 80 of the Y-shaped connector 100 according to the first embodiment. FIG. 6 is a perspective view showing another embodiment of the introduction member fixing member 83a of the arm 80 of the Y-shaped connector 100 according to the first embodiment. FIG. 7 is a perspective view of the Y-shaped connector 100 according to the second embodiment. 8A and 8B are diagrams illustrating a method of attaching the arm 80 of the Y-shaped connector 100 according to the second embodiment.

Next, an embodiment of the Y-shaped connector 100 according to the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments and drawings described below illustrate a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and do not depart from the gist of the present invention. It can be changed as appropriate within the range. For convenience of explanation, the terms "base end" and "distal end" in the claims and the specification refer to the upper side (hand side) shown in FIG. The lower side (distal end side) is referred to as the "distal side".

(First embodiment)
The Y-shaped connector 100 according to the first embodiment is used as an aid when inserting a guide wire or catheter used for vascular treatment or the like into a blood vessel. , a main tube 11 and a side tube 12;

As shown in FIG. 1 or FIG. 3, the body portion 10 includes a main pipe portion 11 longitudinally extending from the base end side to the distal end side and a side pipe portion 12 extending laterally from the middle portion of the main pipe portion 11. have As shown in FIG. 3, the main tube portion 11 has a passage portion 11a extending longitudinally through which an elongated linear introduction member 20 such as a guide wire or a catheter is inserted. A widened passage portion 11b is formed to have a long diameter and widen so that the battery 30 can be accommodated therein. The side tube portion 12 is mainly a portion for injecting a drug solution, a contrast medium, etc. As shown in FIG. A communicating side pipe passage portion 12b is provided. The end of the side tube portion 12 is provided with a screw groove 12a so that an attachment device such as a drug injector can be connected.

The hemostasis valve 30 fixes the introduction member 20 for a short period of time in order to prevent backflow of blood, and adjusts the tightening of the introduction member 20 when the introduction member 20 is taken in and out as needed. A member that facilitates insertion and removal, and is made of elastomer, rubber, silicon, or the like. As shown in FIG. 4A, the hemostasis valve 30 is formed in the shape of a thin disk as a whole, and has a concave shape on the proximal side of the site into which the introduction member 20 is inserted so that the thickness gradually increases from the center. A formed hemostasis valve recess 31 is formed. As shown in FIG. 4C, the hemostasis valve concave portion 31 is conical or spherical so that at least the thinnest portion β of the hemostasis valve 30 has a thickness equal to or less than half the thickness of the thickest portion α of the hemostasis valve 30. formed in More preferably, it is provided so as to have a thickness of ⅓ or less. As a result, the hemostasis valve 30 is formed so that it becomes thicker as it goes from the center toward the periphery. Therefore, when the rigidity is low and the insertion force is weak, such as a thin guide wire, it is inserted from the thin portion at the center. When the rigidity is relatively high and the insertion force is strong, such as a catheter, it can be inserted without problems even in a place with a certain thickness. It can improve performance. As shown in FIG. 4B, the hemostasis valve 30 is further formed with a plurality of slits 32 extending radially from the center. Preferably, the upper slit 32a cut halfway from the base end and the lower slit 32b cut halfway from the bottom end are arranged at twisted positions. An insertion portion 35 through which the introduction member 20 can be inserted is provided at the center by this cut. Note that the number of slits 32 is not particularly limited.

When the hemostatic valve 30 is pushed by a pusher 40, which will be described later, the insertion portion 35 is widened, and the frictional force when inserting and withdrawing the introduction member 20 is weakened, or the frictional force is eliminated to facilitate the insertion of the introduction member 20. The configuration is not limited to the one described above as long as it is manufactured so as to be able to do so.

The cap portion 60 functions as a lid member for housing the hemostatic valve 30, the pusher 40, and the hemostatic valve 30 in the main body portion 10, and the position of the pusher 40 relative to the longitudinal direction (vertical direction) of the main body. It consists of a screw cap with the ability to adjust The screw cap 60 is a cylindrical member having a screw thread formed on its inner periphery that can be engaged with a screw thread formed on the outer periphery of the base end of the main body 10, and can be attached to the main body by rotating. , can be removed. In the present embodiment, a screw cap is used as the cap portion 60, but the cap portion 60 is not limited to this. good.

As shown in FIG. 3 , the pusher 40 has a disk portion 41 on the base end side and an extension portion 42 extending from the disk portion 41 into the cap portion 60 . An introduction member insertion hole 46 through which the introduction member 20 can be inserted is provided at the center of the pusher 40 . The pusher 40 is provided movably in the longitudinal direction with respect to the cap portion 60 . When the pusher 40 is pushed, the distal end of the extension portion 42 presses the hemostatic valve 30 to push the insertion portion 35 of the hemostatic valve 30 . can be widened. That is, by opening the insertion portion 35 of the hemostatic valve 30, the introduction member 20 can be easily inserted, and the fixed introduction member 20 can be released to facilitate insertion and withdrawal. The pusher 40 has an engagement recess 44 that can be engaged with an engagement piece 62 formed on the cap portion 60 on the outer circumference of the extension portion 42, so that the pusher 40 can be completely removed from the cap portion 60. is prevented.

The arm 80 is a member for fixing the introduction member 20 at a position above the cap portion 60 and laterally displaced from directly above the introduction member insertion hole 46 as shown in FIG. As shown in FIG. 5, the arm 80 is made of an elastic member such as rubber, silicon, or urethane, or a hard member such as plastic or metal. A fixable cap portion fixing portion 84 is provided, and an introduction member fixing portion 83 for fixing the introduction member 20 is provided at the other end portion. The cap portion fixing portion 84 has a substantially U-shaped tip so that it can be fitted into the attached portion 61 extending in a disc shape provided on the upper surface of the cap portion 60 . Therefore, by pushing the cap portion 60 from the side, the arm 80 is attached to the cap portion 60 so as to be rotatable about the axial direction A of the main body portion 10 . When the arm 80 is attached to the cap portion 60 of the main body portion 10 , the opposite end portion (introducing member fixing portion 83 ) is located above the main portion 10 above the cap portion 60 and above the introducing member insertion hole 46 . It is formed curved so as to be arranged at a position shifted in the lateral direction from directly above. By providing the introduction member fixing portion 83 at such a position, it is possible to prevent the use of the introduction member 20 being used from being hindered when a plurality of introduction members 20 are used. When the introduction member fixing portion 83 is made of an elastic member such as rubber, silicon, or urethane, grooves or cuts 83a are formed, and the introduction member 20 such as a guide wire or a catheter is inserted into the cuts 83a. By inserting, the introduction member 20 can be fixed to the introduction member fixing portion 83 . In addition, when it is made of a hard member such as plastic or metal, as shown in FIG. 6, an introduction member fixing portion 83 made of urethane, silicon, rubber, or the like may be attached to the tip.

Also, the arm 80 may be made of a material that has flexibility and that can fix the position of the introduction member fixing portion 83 at the flexible position. For example, a wire or a flexible bellows tube may be used. By using a flexible member, the arm 80 can be freely bent to move the introduction member fixing portion 83 to a position where the introduction member 20 can be easily attached. Therefore, the Y-shaped connector 100 can be user-friendly because the introduction member fixing portion 83 can be held at the most convenient position for the user to use.

According to the Y-shaped connector 100 according to the present invention configured as described above, for example, as shown in FIG. 21 is freely moved and the guide wire 22 is fixed, the guide wire 22 is fixed to the introduction member fixing portion 83 of the arm 80 with the hemostatic valve 30 opened. can be prevented and only the catheter 21 can be moved freely. At this time, since the introduction member fixing portion 83 is provided above the cap portion 60 and laterally shifted from directly above the introduction member hole 63, it is possible to fix the catheter 21 during operation. It is possible to prevent the guide wire 22 that has been placed in the way from becoming an obstacle. Further, since the arm 80 is rotatable with respect to the cap portion 60, when the Y-shaped connector 100 is gripped, the arm 80 can be moved to a position that is easy to handle. Since the arm 80 does not exist in the part 10, it can be gripped with the same feeling as a conventional Y-shaped connector.

(Second embodiment)
The Y-shaped connector 100 according to the second embodiment, as shown in FIGS. 30 , a pusher 40 , a cap portion 60 and an arm 80 . The configuration of the Y-shaped connector 100 according to the second embodiment is the same as that of the first embodiment except for the arm 80, so the description is omitted.

As shown in FIG. 7, the arm 80 according to the second embodiment has a side tube portion in addition to the cap portion fixing portion 84 that fixes the arm 80 to the main body portion 10 in addition to the cap portion fixing portion 84 that is fixed to the cap portion 60 . 12 in that it has a side tube portion fixing portion 85 to be fixed. The side tube fixing portion 85 has a substantially J-shaped tip, and as shown in FIG. The side tube portion fixing portion 85 is fitted into the side tube portion 12 by performing the operation of attaching to the portion 61 . At this time, the side tube portion fixing portion 85 is preferably provided so as to be able to firmly grip the side tube portion 12 .

In addition, in the arm 80 according to the second embodiment, the introduction member fixing portion 83 for fixing the introduction member 20 is provided with a plurality of cuts 83a spaced apart from each other, and the plurality of introduction members 20 are provided between the fingers. It is formed so that it can be installed with a space between them. For this reason, it becomes easy to grasp the plurality of introduction members 20 individually, and the arm 80 can be made easy to handle.

According to the Y-shaped connector 100 according to the second embodiment configured as described above, when the two introduction members 20, the catheter 21 and the guide wire 22, are inserted, the catheter 21 can be freely moved. When it is desired to fix the guide wire 22, the guide wire 22 is fixed to the introduction member fixing portion 83 of the arm 80 while the hemostatic valve 30 is open. 21 can be freely moved. At this time, since the introduction member fixing portion 83 is provided above the cap portion 60 and laterally shifted from directly above the introduction member hole 63, it is possible to fix the catheter 21 during operation. It is possible to prevent the guide wire 22 that has been placed in the way from becoming an obstacle. Further, even when the arm 80 rotates with respect to the cap portion 60, the arm 80 does not rotate with respect to the main body portion 10, so that a fixed form can be maintained. By maintaining a constant configuration, a longer arm 80 can be provided, thus avoiding obstruction when manipulating the introduction member.

As shown in the above-described embodiments, it can be used as an aid in surgery using guide wires and catheters.

DESCRIPTION OF SYMBOLS 10... Main-body part 11... Main pipe part 11a... Passage part 11b... Expanding passage part 12... Side pipe part 12a... Screw groove 12b... Side pipe passage part 20... Introduction member 21... Catheter 22 Guide wire 30 Hemostatic valve 31 Hemostasis valve concave portion 32 Slit 32a Upper slit 32b Lower slit 35 Insertion portion 40 Pusher 41 Disk portion 42 Extension portion 44 Engagement recess 46 Introduction member insertion hole 60 Cap portion 61 Attached portion 62 Engagement piece 63 Introduction member hole 80 Arm 83 Introduction member fixing portion 83a Notch 84... cap part fixing part 85... side tube part fixing part 100... Y type connector,

Claims (5)

a body portion having a main tube portion having a passage portion in the longitudinal direction through which a linear introduction member such as a guide wire or a catheter is inserted, and a side tube portion extending laterally from the main tube portion;
a cap portion provided on the main body;
an arm having an introduction member fixing portion for fixing the introduction member inserted into the main body portion and a cap portion fixing portion attached to the cap portion;
A Y-shaped connector comprising: 2. The Y-shaped connector according to claim 1, wherein said arm is attachable to and detachable from said cap portion. 3. The Y-shaped connector according to claim 1, wherein said arm is rotatably provided on said cap portion. 4. The Y-shaped connector according to any one of claims 1 to 3, wherein the arm has a side tube portion fixing portion that is fixed to the side tube portion. A Y-shaped connector according to any one of claims 1 to 4, wherein said arm is made of a flexible member.

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