JP2021090498A - Y-shaped connector and arm - Google Patents

Abstract

To provide a Y-shaped connector and arm, when a plurality of introduction members such as a catheter and a guide wire are inserted into a hemostatic valve, capable of separately fixing a discretionary introduction member out of the plurality of introduction members.SOLUTION: A Y-shaped connector 100 comprises: a body section 10 including a main tube part 11 having, in the longitudinal direction, a passage portion in which linearly-formed introduction members 20 such as a guide wire or a catheter are inserted, and a side tube part 12 extending from the main tube part 11 in a lateral direction; a hemostatic valve 50 including an insertion part in which the introduction member 20 to be inserted into the body section 10 can be inserted, and preventing outflow of blood; a pusher 70 having an insertion part allowing the insertion of the introduction member 20 and expanding the insertion part of the hemostatic valve to facilitate the passage of the introduction member 20; and an arm 80 having a fixing portion 83 for fixing the introduction member 20 inserted into the body section 10 via the pusher 70.SELECTED DRAWING: Figure 12

Description

The present invention relates to a Y-type connector and an arm.

Conventionally, a Y-type connector has been used to facilitate the operation of inserting or pulling a guide wire or catheter. 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. A fixed valve for fixing the catheter passed through the hole is provided, and a first hemostatic valve and a second hemostatic valve capable of allowing the passage of the catheter in a wrapped state and preventing the outflow of blood are provided. , A tubular opener that can be moved in the longitudinal direction is provided on the base end side of the main branch, and only the first hemostatic valve is arranged within the moving range of the opener (Patent Document 1).

However, in such a Y-shaped connector, a plurality of introduction members such as a guide wire and a catheter may be inserted to perform an operation. In that case, there is a problem that it is not possible to select and fix any of the plurality of introduction members.

Japanese Unexamined Patent Publication No. 2005-261759

Therefore, the present invention has been made to solve the above-mentioned problems, and when a plurality of introduction members such as a catheter and a guide wire are inserted into a hemostatic valve in a Y-type connector, the plurality of introduction members are used. It is an object of the present invention to provide a Y-type connector to which any introduction member can be separately fixed and an arm that can be attached to the Y-type connector.

The present invention has taken the following measures to achieve the above object.

The Y-shaped connector according to the present invention includes a main pipe 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 pipe portion extending laterally from the main pipe portion. With the main body
An arm having a fixing portion for fixing the introduction member inserted into the main body portion,
It is characterized by having.

The Y-type connector according to the present invention is attached to a fixing portion attached to an arm provided outside the main body portion when there is an introduction member inserted outside the main body portion to be fixed outside the Y-type connector. The introduction member can be fixed. Thereby, for example, when the catheter and the guide wire are inserted through the Y-type connector and the catheter is desired to be moved but the guide wire is not to be moved, the guide wire is fixed to the fixed portion of the arm. Only the guide wire can be fixed with.

Further, in the Y-shaped connector according to the present invention, the arm may be detachable from the side tube portion or the main body portion.

By adopting such a configuration, the introduction member can be removed and used when it is not necessary to fix the introduction member separately from the hemostatic valve.

Further, in the Y-shaped connector according to the present invention, the arm is removable to the end of the side pipe portion, and when attached to the side pipe portion, a passage communicating with the side pipe passage portion of the side pipe portion. It may be characterized in that is formed.

By forming the arm detachably at the end of the side tube, the Y-type connector is not attached to the main tube and side tube used when the operator grasps it, so the Y-type connector does not impair usability. A connector can be provided.

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

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

Further, in the Y-shaped connector according to the present invention, the arm may be characterized by having a hinge portion.

The position of the fixing portion can also be changed by providing the hinge portion on the arm, and when fixing the introduction member, the fixing portion can be moved to a position where it can be easily fixed and attached.

Further, in the Y-type connector according to the present invention, the fixing portion may be detachable from the arm.

By adopting such a configuration, the fixing portion can be replaced according to the thickness and the like of the introduction member to be fixed.

Further, in the Y-shaped connector according to the present invention, the fixing portion is made of an elastic member such as rubber, silicon, or urethane having a cut, and can be fixed by inserting the introduction member into the cut. It may be characterized in that.

By adopting such a configuration, since the introduction member to be fixed can be fixed by simply inserting it into the cut, it can be easily fixed with one hand, and a convenient Y-type connector can be provided.

Further, in the Y-type connector according to the present invention,
A hemostatic valve that has an insertion portion through which the introduction member inserted into the main body portion can be inserted and prevents blood from flowing out.
It has an introduction member insertion hole through which the introduction member is inserted, and includes a pusher that widens the insertion portion of the hemostatic valve to facilitate passage of the introduction member.
The arm may be characterized in that the introduction member inserted into the main body portion via the pusher is fixed.

If there is an introduction member inserted into the main body that you want to fix separately from the one that you want to fix with the hemostatic valve, fix the introduction member to the fixing part attached to the arm provided outside the main body. It is something that can be done. As a result, for example, when the catheter and the guide wire are inserted through the Y-type connector and the catheter wants to move but the guide wire does not want to move, the guide wire can be moved with the hemostatic valve open. Only the guide wire can be fixed by fixing it to the fixed portion of the arm.

Further, the present invention has a main pipe 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 pipe portion extending laterally from the main pipe portion. Provided is an arm provided with an attachment portion that can be attached to the Y-type connector and a fixing portion for fixing the introduction member inserted into the Y-type connector. By using such an arm, the fixing portion of the introduction member can be easily provided on the outside of the main body by attaching to the existing Y-type connector.

Further, in the arm according to the present invention, a passage that can be attached to and detached from the end of the side pipe portion and communicates with the side pipe passage portion of the side pipe portion is formed when the arm is attached to the side pipe portion. It may be characterized by.

Further, the arm according to the present invention may be characterized in that it is made of a flexible member.

Further, the arm according to the present invention may be characterized by having a hinge portion.

According to the Y-type connector according to the present invention, when a plurality of introduction members such as a catheter and a guide wire are inserted into a hemostatic valve, a Y-type connector capable of separately fixing any introduction member among the plurality of introduction members is provided. can do.

FIG. 1 is a perspective view of the Y-type connector 100 according to the first embodiment. FIG. 2 is a front view of the Y-type connector 100 according to the first embodiment. FIG. 3 is a cross-sectional view of the Y-type connector 100 according to the first embodiment. FIG. 4 is an exploded perspective view of the Y-type connector 100 according to the first embodiment. FIG. 5 is a side view showing another embodiment of the arm 80 of the Y-type connector 100 according to the first embodiment. FIG. 6 is a side view showing still another embodiment of the arm 80 of the Y-type connector 100 according to the first embodiment. FIG. 7 is a side view showing still another embodiment of the arm 80 of the Y-type connector 100 according to the first embodiment. FIG. 8 is a side view showing still another embodiment of the arm 80 of the Y-type connector 100 according to the first embodiment. FIG. 9 is a perspective view of the Y-type connector 100 according to the second embodiment. FIG. 10 is a front view of the Y-type connector 100 according to the second embodiment. FIG. 11 is a cross-sectional view of the Y-type connector 100 according to the second embodiment. FIG. 12 is an exploded perspective view of the Y-type connector 100 according to the second embodiment. 13A and 13B are perspective views showing a hemostatic valve 50 of the Y-type connector 100 according to the embodiment, and FIG. 13C is a cross-sectional view. 14A and 14B are perspective views showing another embodiment of the hemostatic valve 50 of the Y-type connector 100 according to the embodiment.

Next, an embodiment of the Y-type connector 100 according to the present invention will be described in detail with reference to the drawings. The embodiments and drawings described below exemplify a part of the embodiments of the present invention, are not used for the purpose of limiting to these configurations, and do not deviate from the gist of the present invention. It can be changed as appropriate within the range. For convenience of explanation, in the claims and the specification, the "base end side" and the "tip end side" refer to the upper side (hand side) shown in FIG. 1 with respect to the Y-type connector 100. It is called the "base end side", and the lower side (distal end side) is called the "tip side".

(First Embodiment)
The Y-type connector 100 according to the first embodiment is used as an auxiliary tool when inserting a guide wire or a catheter used for blood vessel treatment or the like into a blood vessel, and is as shown in FIGS. 1 to 3. It includes a main body portion 10 mainly having a main pipe portion 11 and a side pipe portion 12, a fixing member 30 attached to the base end side of the main body portion 10, a pusher 40, a screw cap 60, and an arm 80.

As shown in FIG. 1 or 3, the main body portion 10 includes a main pipe portion 11 extending in the longitudinal direction from the proximal end side to the distal end side and a side pipe portion 12 extending laterally from the middle of the main pipe portion 11. Has. As shown in FIG. 3, the main pipe portion 11 has a passage portion 11a penetrating in the longitudinal direction through which an elongated linear introduction member 20 such as a guide wire or a catheter is inserted, and the proximal end side is a fixing member. An expansion passage portion 11b having a long diameter and being expanded so that the 30 can be stored is formed. The side tube portion 12 is a portion for injecting a chemical solution, a contrast medium, or the like, and the inside of the side tube portion 12 communicates with the passage portion 11a from the end portion of the side tube portion 12 as shown in FIG. A side pipe passage portion 12b is provided. A screw groove 12a is provided at the end of the side tube portion 12 so that a mounting device such as a drug injector can be connected.

The fixing member 30 is used to strongly fix the introduction member 20 for a relatively long time, and can be fixed by pressing the introduction member 20 from the surroundings. The fixing member 30 is made of elastomer, rubber, silicon, or the like, and as shown in FIG. 4, is formed in a tubular shape having a through hole 31 through which the introduction member 20 is inserted from the base end side to the tip end side. .. The fixing member 30 is pressed from above by the pusher 40 described later, so that the through hole 31 is narrowed, and the introduction member 20 can be tightened and fixed.

The pusher 40 tightens the introduction member 20 via the fixing member 30 by pressing the fixing member 30 from above. The pusher 40 is fixed to the screw cap 60 by a screw, and moves up and down in the same manner as the screw cap 60 moves up and down with respect to the main body 10. As described above, by pushing down the pusher 40, the introduction member 20 can be fixed by pressing the fixing member 30 to narrow the through hole 31.

The screw cap 60 has a function as a lid member for accommodating the fixing member 30 and the pusher 40 in the main body 10, and also has a function of adjusting the position of the pusher 40 with respect to the longitudinal direction (vertical direction) of the main body. .. The screw cap 60 is a tubular member having a thread formed on the outer periphery of the base end side of the main body 10 and having a thread that can be engaged with the thread formed on the inner circumference, and pushes down the pusher 40 by rotating the screw cap 60. Or can be pulled up. By tightening the screw cap 60, the pusher 40 can be pushed down and the introduction member 20 can be tightened and fixed as described above. The screw cap 60 is provided with an introduction member hole 63 for inserting the introduction member 20.

As shown in FIG. 2, the arm 80 is a member having a fixing portion 83 at a position above the screw cap 60 and laterally displaced from directly above the introduction member hole 63, and the fixing portion 83 is provided. The introduction member 20 can be fixed to the. The arm 80 includes an arm portion main body 82 and a fixing portion 83. The arm portion main body 82 is made of a hard member such as plastic or metal, and can be attached to a screw groove 12a for attaching a drug injector or the like provided at the end of the side pipe portion 12 of the main body portion 10. As described above, the mounting portion 81 provided with the mounting fixture 81a at the end portion is provided. As shown in FIG. 3, the mounting portion 81 is formed with a passage 84 communicating with the side pipe passage portion 12b of the side pipe portion 12, and a groove having the same shape as the screw groove 12a is formed on the opposite side of the passage 84. An arm-side thread groove 85 is formed. Therefore, a mounting device such as a drug injector can be attached to the arm-side thread groove 85. When the arm portion main body 82 is attached to the end portion of the side pipe portion 12 of the main body portion 10, the opposite end portion (fixed portion 83 side) is above the main body portion 10 and above the screw cap 60, and the arm portion main body 82 is introduced. It is curved so as to be arranged at a position shifted laterally from directly above the member hole 63. A fixing portion 83 is detachably attached to the end of the arm 80 by fitting. The fixing portion 83 is made of an elastic member such as rubber, silicon, or urethane having a cut 83a formed therein, and the introduction member 20 is fixed by inserting the introduction member 20 such as a guide wire or a catheter into the cut 83a. It can be fixed to 83.

The arm portion main body 82 may be made of a flexible member such as urethane, silicon, or rubber instead of the above-mentioned hard member. By using such a flexible member, as shown in FIG. 5, the fixed portion 83 can be moved and attached to a position where the introduction member 20 can be easily attached by bending the portion of the arm portion main body 82. Further, a material may be used in which the arm portion main body 82 has flexibility and the position of the fixing portion 83 can be fixed at a flexible position. As the arm portion main body 82, for example, a wire, a flexible bellows tube, or the like may be used as shown in FIG. By using such a material, the fixing portion 83 can be used in a state where it is most easily used by the user, so that the Y-type connector 100 can be easily used.

Further, as shown in FIG. 7, a hinge portion 86 may be provided in a part of the arm portion main body 82 so that the arm portion main body 82 can be bent. Since the position of the fixing portion 83 can be changed even with such a configuration, the Y-type connector 100 can be easily used. At this time, the hinge portion 86 may be provided with an urging member such as a coil spring to be bent, and then automatically returned to the initial position, or may be held in the bent state. ..

Further, a rotator 95 may be optionally provided at the tip of the main body 10. As shown in FIG. 3, the rotator 95 has a through hole 95a through which the base end side and the tip end side through which the introduction member 20 is inserted penetrates, and a circular groove 95b formed around the through hole 95a. A guiding catheter or other catheter can be connected to the circular groove 95b.

According to the Y-type connector 100 according to the present invention configured as described above, for example, as shown in FIG. 2, when two introduction members 20 of the catheter 21 and the guide wire 22 are inserted, the catheter When it is desired to freely move the 21 and fix the guide wire 22, the guide wire 22 can be moved by fixing the guide wire 22 to the fixing portion 83 of the arm 80 with the fixing member 30 open. Can be prevented and only the catheter 21 can be moved freely. At this time, since the fixing portion 83 is provided at a position above the screw cap 60 and laterally displaced from directly above the introduction member hole 63, the fixing portion 83 is fixed when the catheter 21 is operated. It is possible to prevent the guide wire 22 from getting in the way.

In the above-described embodiment, the arm 80 is detachably configured with respect to the main body portion 10, but as shown in FIG. 8, it may be integrally molded with the main body portion 10. Further, although the arm 80 is configured to extend from the side pipe portion 12, it may be formed so as to extend from the main pipe portion 11.

Further, in the above-described embodiment, the fixing portion 83 is made of an elastic member such as rubber, silicon, or urethane having a cut, but the present invention is not limited to this, and the introduction member 20 is fixed. It may be, for example, a clip as long as it has a possible form. The form is not limited as long as it can be temporarily fixed.

(Second Embodiment)
As shown in FIGS. 9 to 11, the Y-type connector 100 according to the second embodiment has a main body portion 10 mainly having a main pipe portion 11 and a side pipe portion 12, and a fixing attached to the base end side of the main body portion 10. It includes a member 30, a pusher 40, a hemostatic valve 50, a screw cap 60, a pusher 70, and an arm 80.

As shown in FIG. 9 or 11, the main body portion 10 includes a main pipe portion 11 extending in the longitudinal direction from the proximal end side to the distal end side and a side pipe portion 12 extending laterally from the middle of the main pipe portion 11. Has. As shown in FIG. 9, the main pipe portion 11 has a passage portion 11a penetrating in the longitudinal direction through which an elongated linear introduction member 20 such as a guide wire or a catheter is inserted, and the proximal end side is a fixing member. An expansion passage portion 11b having a long diameter and being expanded so that a part of the pusher 40 and the pusher 40 can be stored is formed. The side tube portion 12 is a portion for injecting a chemical solution, a contrast medium, or the like, and the inside of the side tube portion 12 communicates with the passage portion 11a from the end portion of the side tube portion 12 as shown in FIG. A side pipe passage portion 12b is provided. A screw groove 12a is provided at the end of the side tube portion 12 so that a mounting device such as a drug injector can be connected.

The fixing member 30 is used to strongly fix the introduction member 20 for a relatively long time, and can be fixed by pressing the introduction member 20 from the surroundings. The fixing member 30 is made of elastomer, rubber, silicon, or the like, and as shown in FIG. 12, is formed in a tubular shape having a through hole 31 through which the introduction member 20 is inserted from the base end side to the tip end side. .. The fixing member 30 is pressed from above by the pusher 40 described later, so that the through hole 31 is narrowed, and the introduction member 20 can be tightened and fixed.

The pusher 40 has a function of tightening the introduction member 20 via the fixing member 30 by pressing the fixing member 30 from above, and a function of supporting the hemostatic valve 50. The pusher 40 is fixed to the screw cap 60 by a screw, and moves up and down in the same manner as the screw cap 60 moves up and down with respect to the main body 10. As described above, by pushing down the pusher 40, the introduction member 20 can be fixed by pressing the fixing member 30 to narrow the through hole 31.

The hemostatic valve 50 is introduced at any time by fixing the introduction member 20 for a short period of time in order to prevent blood from flowing back when the fixing member 30 is released for inserting or removing the introduction member 20. It is a member for adjusting the tightening to the introduction member 20 when the member 20 is taken in and out so that the introduction member 20 can be easily taken in and out. As shown in FIG. 13A, the hemostatic valve 50 is formed in a thin disk shape as a whole, and the surface on the base end side of the portion where the introduction member 20 is inserted is concave so as to gradually thicken from the center. The formed hemostatic valve recess 51 is formed. As shown in FIG. 13C, the hemostatic valve recess 51 has a conical or spherical shape so that at least the thinnest portion β of the hemostatic valve 50 is at least 1/2 the thickness of the thickest portion α of the hemostatic valve 50. Is formed in. More preferably, it is provided so as to have a thickness of 3/1 or less. As a result, the valve of the hemostatic valve 50 is formed so as to become thicker from the center toward the periphery. Therefore, when the rigidity is low and the insertion force is weak like a thin guide wire, the hemostatic valve 50 is inserted from the thin part in the center. In the case of a catheter with relatively high rigidity and strong insertion force, it can be inserted without any problem even in a place with a certain thickness, and the thickness of the member to be inserted ensures the passageability and the hemostatic performance. Can be improved. As shown in FIG. 13B, the hemostatic valve 50 is further formed with a plurality of slits 52 in the radial direction from the center. Preferably, the upper slit 52a having a notch from the base end side to the middle and the lower slit 52b having a notch from the lower end side to the middle may be arranged so as to be in a twisted position. An insertion portion 55 through which the introduction member 20 can be inserted is provided at the center by this notch. The number of slits 52 is not particularly limited. The hemostatic valve 50 thus produced is arranged in the upper concave portion 41b of the pusher 40.

The hemostatic valve 50 can also be applied and used as follows. As shown in FIG. 14A, a pusher contact portion 59 with which the pusher 70 comes into contact is provided at a portion pushed by the tip of the pusher 70. The pusher contact portion 59 is formed so as to be flush with the outer peripheral surface, and when the pusher 70 is pushed down, the pusher 70 is formed so as to be pressed by the flat surface at the tip of the pusher 70. It is a plane. By providing the pusher contact portion 59 in this way, when the pusher 70 is pushed as compared with the above-mentioned hemostatic valve 50, the hemostatic valve 50 can be opened faster and the hemostatic valve 50 is pushed in by surface contact. Therefore, the hemostatic valve 50 can be opened more reliably. Further, since the pusher contact portion 59 is provided in the hemostatic valve recess 51 of the hemostatic valve 50, the inner diameter is reduced, so that the shape can be firmly supported against the pressure from the inside. Further, as shown in FIG. 14B, the pusher contact portion 59 may be provided on the entire circumference. That is, it is provided so that a small hemostatic valve recess 51 is formed inside the slit 52. With such a configuration, the pusher contact portion 59 can be pressed by the entire tip of the pusher 70. When the pusher contact portion 59 is provided on the entire circumference in this way, even if the thin-walled portion 59a is provided on the back surface side to reduce the rigidity and the hemostatic valve recess 51 is formed so as to be easily bent downward. Good. By adopting such a configuration, it is possible to easily pass the guide wire or the catheter.

When the hemostatic valve 50 is pushed by the pusher 70, the insertion portion 55 expands, the frictional force for inserting and removing the introduction member 20 becomes weak, or the frictional force is eliminated so that the introduction member 20 can be easily inserted. If it is produced, it is not limited to the above-mentioned configuration.

The screw cap 60 has a function as a lid member for accommodating the fixing member 30, the pusher 40, and the hemostatic valve 50 in the main body 10, and the position of the pusher 40 is relative to the longitudinal direction (vertical direction) of the main body. Has a function to adjust. The screw cap 60 is a tubular member having a thread formed on the outer periphery of the base end side of the main body 10 and having a thread that can be engaged with the thread formed on the inner circumference, and pushes down the pusher 40 by rotating the screw cap 60. Or can be pulled up. By tightening the screw cap 60, the pusher 40 can be pushed down and the introduction member 20 can be tightened and fixed as described above.

As shown in FIG. 11, the pusher 70 has a disk portion 71 on the base end side, and has an extension portion 72 extending from the disk portion 71 into the screw cap 60. At the center of the pusher 70, an introduction member insertion hole 76 through which the introduction member 20 can be inserted is provided. The pusher 70 is provided so as to be movable in the longitudinal direction with respect to the screw cap 60. When the pusher 70 is pushed, the tip of the extending portion 72 presses the hemostatic valve 50 to insert the hemostatic valve 50. The portion 55 can be widened. That is, by opening the insertion portion 55 of the hemostatic valve 50, the introduction member 20 can be easily inserted, or the fixed introduction member 20 can be opened to be easily inserted or pulled out. The pusher 70 has an engagement recess 74 that can be engaged with the engagement piece 62 formed on the screw cap 60 on the outer periphery of the extension portion 72, and the pusher 70 is completely disengaged from the screw cap 60. Is prevented.

As shown in FIG. 9 or 10, the arm 80 has a fixing portion 83 at a position above the main body portion 10 above the pusher 70 and laterally offset from directly above the introduction member insertion hole 76. It is a member, and the introduction member 20 can be fixed to the fixing portion 83. The arm 80 includes an arm portion main body 82 and a fixing portion 83. The arm portion main body 82 is made of a hard member such as plastic or metal, and can be attached to a screw groove 12a for attaching a drug injector or the like provided at the end of the side pipe portion 12 of the main body portion 10. As described above, the mounting portion 81 provided with the mounting fixture 81a at the end portion is provided. A passage 84 communicating with the side pipe passage portion 12b of the side pipe portion 12 is formed in the mounting portion 81, and an arm-side thread groove 85 having a groove having the same shape as the screw groove 12a is formed on the opposite side of the passage 84. Is formed. Therefore, a mounting device such as a drug injector can be attached to the arm-side thread groove 85. When the arm portion main body 82 is attached to the end portion of the side pipe portion 12 of the main body portion 10, the opposite end portion (fixed portion 83 side) is above the main body portion 10 and above the pusher 70, and the arm portion main body 82 is introduced. It is curved so as to be arranged at a position shifted laterally from directly above the member insertion hole 76. A fixing portion 83 is detachably attached to the end of the arm 80 by fitting. The fixing portion 83 is made of an elastic member such as rubber, silicon, or urethane having a cut 83a formed therein, and the introduction member 20 is fixed by inserting the introduction member 20 such as a guide wire or a catheter into the cut 83a. It can be fixed to 83.

Similar to the first embodiment, the arm portion main body 82 is made of a flexible member such as urethane, silicon, or rubber instead of the above-mentioned hard member, or the arm portion main body 82 has flexibility. Moreover, a wire, a flexible bellows tube, or the like may be used so that the position of the fixing portion 83 can be fixed at the flexible position. Further, a hinge portion 86 may be provided on a part of the arm portion main body 82 so that the arm portion main body 82 can be bent.

Further, a rotator 95 may be optionally provided at the tip of the main body 10. As shown in FIG. 11, the rotator 95 has a through hole 95a through which the base end side and the tip end side through which the introduction member 20 is inserted penetrates, and a circular groove 95b formed around the through hole 95a. A guiding catheter or other catheter can be connected to the circular groove 95b.

According to the Y-type connector 100 according to the present invention configured as described above, for example, as shown in FIG. 10, when two introduction members 20 of the catheter 21 and the guide wire 22 are inserted, the catheter When it is desired to freely move the 21 to fix the guide wire 22, the guide wire 22 is fixed to the fixing portion 83 of the arm 80 with the fixing member 30 open, and the catheter 21 is fixed by the pusher 70. By moving the catheter while adjusting the tightening state of the catheter by the hemostatic valve 50, the catheter 21 can be freely moved while preventing the backflow of blood flow. At this time, since the fixing portion 83 is provided at a position above the pusher 70 and laterally displaced from directly above the introduction member insertion hole 76, the fixing portion 83 is fixed when the catheter 21 is operated. It is possible to prevent the guide wire from getting in the way.

As shown in the above-described embodiment, it can be used as an auxiliary tool in surgery using a guide wire or a catheter.

10 ... main body, 11 ... main pipe, 11a ... passage, 11b ... expansion passage, 12 ... side pipe, 12a ... thread groove, 12b ... side pipe passage, 20 ... introduction member, 21 ... catheter, 22 ... guide wire, 30 ... fixing member, 31 ... through hole, 40 ... pusher, 41b ... upper concave portion, 50 ... hemostatic valve, 51 ... hemostatic valve recess, 52 ... slit, 52a ... upper slit, 52b ... lower slit, 55 ... Insertion part, 59 ... Pusher contact part, 59a ... Thin wall part, 60 ... Screw cap, 62 ... Engagement piece, 70 ... Pusher, 71 ... Disk part, 72 ... Extension part, 74 ... Engagement recess , 76 ... Introduction member insertion hole, 80 ... Arm, 81 ... Mounting part, 81a ... Mounting device, 82 ... Arm part body, 83 ... Fixed part, 83a ... Cut, 84 ... Passage, 85 ... Arm side thread groove, 86 ... Hinge part, 95 ... Rotator, 95a ... Through hole, 95b ... Circular groove, 100 ... Y type connector

Claims (12)

A main pipe portion having a passage portion through which a linearly formed introduction member such as a guide wire or a catheter is inserted in the longitudinal direction, a main body portion having a side pipe portion extending laterally from the main pipe portion, and a main body portion.
An arm having a fixing portion for fixing the introduction member inserted into the main body portion,
Y-type connector characterized by being equipped with. The Y-type connector according to claim 1, wherein the arm is detachable from the side tube portion or the main body portion. The arm is removable from the end of the side pipe portion, and when attached to the side pipe portion, a passage communicating with the side pipe passage portion of the side pipe portion is formed. Item 2. The Y-type connector according to Item 1 or 2. The Y-type connector according to any one of claims 1 to 3, wherein the arm is made of a flexible member. The Y-type connector according to any one of claims 1 to 4, wherein the arm includes a hinge portion. The Y-type connector according to any one of claims 1 to 5, wherein the fixing portion is detachable from the arm. Claims 1 to 6, wherein the fixing portion is made of an elastic member such as rubber, silicon, or urethane having a cut, and can be fixed by inserting the introduction member into the cut. The Y-type connector according to any one item. In the Y-type connector according to any one of claims 1 to 7.
A hemostatic valve that has an insertion portion through which the introduction member inserted into the main body portion can be inserted and prevents blood from flowing out.
It has an introduction member insertion hole through which the introduction member is inserted, and includes a pusher that widens the insertion portion of the hemostatic valve to facilitate passage of the introduction member.
The arm is a Y-shaped connector characterized in that the introduction member inserted into the main body portion via the pusher is fixed. For a Y-shaped connector having a main pipe 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 pipe portion extending laterally from the main pipe portion. An arm including a mounting portion that can be mounted and a fixing portion for fixing the introduction member inserted into the Y-shaped connector. The ninth aspect of the present invention is characterized in that a passage that is removable from the end of the side pipe portion and communicates with the side pipe passage portion of the side pipe portion is formed when the side pipe portion is attached. Arm. The arm according to claim 9 or 10, wherein the arm is made of a flexible member. The arm according to any one of claims 9 to 11, further comprising a hinge portion.

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