Y-shaped connector

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

Technical Field

[0001] The present invention relates to a Y-shaped connector.

Background Art

[0002] Conventionally, a Y-shaped connector has been used to facilitate the operation of inserting or pulling out a guide wire or a catheter into or from the body. As the Y-shaped connector, in a Y-connector in which a cylindrical sub-branch for injecting a liquid agent branches from a cylindrical main branch through which a catheter passes, inside the main branch, there is provided a fixing valve that is cylindrical and whose hole diameter is reduced by longitudinal compression to fix the catheter passed through the hole, and a first hemostatic valve and a second hemostatic valve that allow the passage of the catheter in a wrapped state and prevent the outflow of blood are provided. Further, a cylindrical opener that is movable in the longitudinal direction is provided on the proximal end side of the main branch, and only the first hemostatic valve is arranged within the moving range of the opener (Patent Document 1).

[0003] However, such a Y-shaped connector has a problem that when performing an operation by inserting a plurality of introduction members such as a guide wire and a catheter, any one of the plurality of introduction members cannot be selectively fixed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a Y-shaped connector in which when a plurality of introduction members such as a catheter and a guide wire are inserted into a hemostatic valve, any one of the plurality of introduction members can be separately fixed.

Means for Solving the Problem

[0006] The present invention has adopted the following means to achieve the above object.

[0007] 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 main body portion having a side pipe portion extending laterally from the main pipe portion, a cap portion provided on the main body portion, 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. It is characterized by comprising the above.

[0008] 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 portion, the introduction member can be fixed to the introduction member fixing portion attached to the arm provided outside the main body portion. Thereby, for example, when inserting a catheter and a guide wire into the Y-shaped connector and the catheter needs to be moved but the guide wire does not need to be moved, only the guide wire can be fixed by fixing the guide wire to the fixing portion of the arm.

[0009] Also, in the Y-shaped connector according to the present invention, the arm may be detachable from the cap portion.

[0010] By adopting such a configuration, when it is not necessary to fix the introduction member, it can be removed and used as a normal Y-shaped connector.

[0011] Furthermore, in the Y-shaped connector according to the present invention, the arm may be rotatably provided on the cap portion.

[0012] By adopting such a configuration, when gripping the Y-shaped connector, it can be moved to a position that is easy to handle by moving the arm, and since there is no arm on the main body portion, it can be gripped in the same manner as a conventional Y-shaped connector.

[0013] Furthermore, in the Y-shaped connector according to the present invention, the arm may be characterized in that it has a side tube portion fixing portion for fixing to the side tube portion.

[0014] 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 a certain form can be maintained. By maintaining a certain form, a longer arm can be provided, so it is possible to prevent interference when operating the introduction member.

[0015] Furthermore, in the Y-shaped connector according to the present invention, the arm may be characterized in that it is made of a flexible member.

[0016] By making the arm of a flexible member, when fixing the introduction member, the fixing portion can be moved to a position where it is easy to fix and attached.

Effects of the Invention

[0017] According to the Y-shaped connector of the present invention, when a plurality of introduction members such as a catheter and a guide wire are inserted into the hemostatic valve, it is possible to provide a Y-shaped connector in which any one of the plurality of introduction members can be separately fixed.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0019] Next, embodiments 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 are examples of a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and can be appropriately changed without departing from the gist of the present invention. For the sake of convenience of explanation, in the claims and the specification, the "proximal end side" and the "distal end side" refer to the upper side (near the hand side) shown in FIG. 1 as the "proximal end side" and the lower side (distal end side) as the "distal end side" with respect to the Y-shaped connector 100.

[0020] (First Embodiment) The Y-shaped connector 100 according to the first embodiment is used as an auxiliary tool when inserting a guide wire or a catheter used for vascular treatment or the like into a blood vessel. As shown in FIGS. 1 to 3, it mainly includes a main body portion 10 having a main pipe portion 11 and a side pipe portion 12, a hemostatic valve 30 disposed in the main body portion 10, a pusher 40, a cap portion 60, and an arm 80.

[0021] As shown in FIG. 1 or FIG. 3, the main body portion 10 has 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 position of the main pipe portion 11. 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. At the proximal end side, an expanded passage portion 11b having a long diameter is formed so that the hemostatic valve 30 can be accommodated. The side pipe portion 12 is mainly a portion for injecting a chemical solution, a contrast agent, etc. Inside the side pipe portion 12, as shown in FIG. 3, a side pipe passage portion 12b communicating with the passage portion 11a from the end of the side pipe portion 12 is provided. A screw groove 12a is provided at the end of the side pipe portion 12 so that a mounting instrument such as a drug injector can be connected.

[0022] The hemostatic valve 30 is a member for preventing blood backflow and for fixing the introduction member 20 for a short period of time. When inserting and removing the introduction member 20 as needed, it adjusts the tightening on the introduction member 20 to facilitate the insertion and removal of the introduction member 20, and is made of an elastomer, rubber, silicon, or the like. As shown in Fig. 4A, the hemostatic valve 30 is formed in an overall thin disk shape. On the surface of the proximal end side of the portion where the introduction member 20 is inserted, a hemostatic valve recess 31 is formed in a concave shape so as to gradually thicken from the center. As shown in Fig. 4C, the hemostatic valve recess 31 is formed in a conical or spherical shape such that at least the thinnest portion β of the hemostatic valve 30 has a thickness that is 1 / 2 or less of the thickness of the thickest portion α of the hemostatic valve 30. More preferably, it is provided so as to have a thickness of 1 / 3 or less. Thereby, since the valve of the hemostatic valve 30 is formed to become thicker from the center in the circumferential direction, when the rigidity is low and the insertion force is weak like a thin guide wire, it can be inserted from the thin portion in the center. When the rigidity is relatively high and the insertion force is strong like a catheter, it can be inserted without problems even at a place with a certain thickness. While ensuring the passability according to the thickness of the member to be inserted, the hemostatic performance can be improved. As shown in Fig. 4B, the hemostatic valve 30 further has a plurality of slits 32 formed in the radial direction from the center. Preferably, the upper slit 32a with a cut from the proximal end side to the middle and the lower slit 32b with a cut from the distal end side to the middle are arranged so as to be in a twisted position. 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.

[0023] Note that the hemostatic valve 30 is not limited to the above-described configuration as long as it is made such that the insertion portion 35 expands when pushed by a pusher 40 described later, the frictional force for inserting and removing the introduction member 20 becomes weak, or the frictional force is eliminated to facilitate the insertion of the introduction member 20.

[0024] The cap portion 60 is composed of a screw cap that functions as a lid member for housing the hemostatic valve 30 and the pusher 40 in the main body portion 10, and also has a function of adjusting the position of the pusher 40 in the longitudinal direction (vertical direction) of the main body. The screw cap 60 is a cylindrical member having a screw thread on its inner circumference that can engage with the screw thread formed on the outer circumference of the proximal end side of the main body portion 10, and can be attached to or detached from the main body portion by rotation. In this embodiment, a screw cap is adopted as the cap portion 60, but it is not limited thereto, and any form may be used as long as it functions as a lid member, such as a push type or a fixed type.

[0025] As shown in FIG. 3, the pusher 40 has a disk portion 41 on the proximal end side, and an extending 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 so as to be movable in the longitudinal direction with respect to the cap portion 60. When the pusher 40 is pushed, the tip of the extending portion 42 can press the hemostatic valve 30 to widen the insertion portion 35 of the hemostatic valve 30. That is, by opening the insertion portion 35 of the hemostatic valve 30, it is easier to insert the introduction member 20, or the fixed introduction member 20 can be opened to make it easier to insert or withdraw the introduction member 20. The pusher 40 has an engagement recess 44 on the outer circumference of the extending portion 42 that can engage with an engagement piece 62 formed on the cap portion 60, and the pusher 40 is prevented from completely coming off the cap portion 60.

[0026] As shown in FIG. 1, the arm 80 is a member for fixing the introduction member 20 at a position above the cap portion 60 and offset in the lateral direction from directly above the introduction member insertion hole 46. The arm 80 is made of an elastic member such as rubber, silicon, or urethane, a rigid member such as plastic or metal, as shown in FIG. 5. One end portion is provided with a cap portion fixing portion 84 that can be fixed to the cap portion 60 as shown in FIG. 5, and the other end portion is provided with an introduction member fixing portion 83 for fixing the introduction member 20. The cap portion fixing portion 84 has a substantially U-shaped tip so that it can be fitted into the attachment portion 61 extending in a disk shape provided on the upper surface of the cap portion 60. Therefore, by pushing the arm 80 from the side of the cap portion 60, the arm 80 can be rotatably attached to the cap portion 60 about the axial direction A of the main body portion 10. The arm 80 is curved so that the opposite end portion (introduction member fixing portion 83) is disposed at a position above the cap portion 60 from the main body portion 10 and offset in the lateral direction from directly above the introduction member insertion hole 46 when attached to the cap portion 60 of the main body portion 10. By providing the introduction member fixing portion 83 at such a position, it is possible to prevent interference with the use of the introduction member 20 being used 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 can be inserted into the cut 83a to fix the introduction member 20 to the introduction member fixing portion 83. When the introduction member fixing portion 83 is made of a rigid member such as plastic or metal, as shown in FIG. 6, an introduction member fixing portion 83 made of urethane, silicon, rubber, etc. may be attached to the tip.

[0027] Further, the arm 80 may be made of a material that has flexibility and can fix the position of the introduction member fixing portion 83 at the flexed 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 it is easy to attach the introduction member 20. Therefore, since the user can use the Y-shaped connector 100 in a state where the introduction member fixing portion 83 is held at the most convenient position, a user-friendly Y-shaped connector 100 can be obtained.

[0028] According to the Y-shaped 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, if it is desired to freely move the catheter 21 and fix the guide wire 22, with the hemostatic valve 30 open, the guide wire 22 is fixed to the introduction member fixing portion 83 of the arm 80, thereby preventing the movement of the guide wire 22 and allowing only the catheter 21 to move freely. At this time, since the introduction member fixing portion 83 is provided at a position above the cap portion 60 and shifted in the lateral direction from directly above the hole 63 for the introduction member, it is possible to prevent the fixed guide wire 22 from interfering during the operation of the catheter 21. Further, since the arm 80 is rotatably formed with respect to the cap portion 60, when the Y-shaped connector 100 is gripped, the arm 80 can be moved to a position where it is easy to handle, and since there is no arm 80 in the main body portion 10, it can be gripped in the same manner as a conventional Y-shaped connector.

[0029] (Second Embodiment) The Y-shaped connector 100 according to the second embodiment mainly includes a main body portion 10 having a main pipe portion 11 and a side pipe portion 12, a hemostatic valve 30 disposed in the main body portion 10, a pusher 40, a cap portion 60, and an arm 80, as shown in FIGS. 7 to 8. Since the configuration of the Y-shaped connector 100 according to the second embodiment other than the arm 80 is the same as that of the first embodiment, the description thereof is omitted.

[0030] As shown in Fig. 7, the arm 80 according to the second embodiment is different in that, in addition to the cap portion fixing portion 84 that fixes the arm 80 to the main body portion 10 and fixes it to the cap portion 60, it includes a side pipe portion fixing portion 85 that fixes it to the side pipe portion 12. The tip of the side pipe portion fixing portion 85 is formed in a substantially J shape. As shown in Fig. 8, when the arm 80 is attached to the attached portion 61 of the cap portion 60 from the side of the side pipe portion 12, the side pipe portion fixing portion 85 is fitted into the side pipe portion 12. At this time, the side pipe portion fixing portion 85 may be provided so as to be able to firmly grip the side pipe portion 12.

[0031] Further, 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 a plurality of introduction members 20 are formed so that fingers can be inserted between them at intervals. Therefore, it becomes easier to individually grasp the plurality of introduction members 20, and the arm 80 can be made easy to handle.

[0032] According to the Y-shaped connector 100 according to the second embodiment configured as described above, when two introduction members 20 of the catheter 21 and the guide wire 22 are inserted, if it is desired to move the catheter 21 freely and fix the guide wire 22, with the hemostatic valve 30 open, the guide wire 22 is fixed to the introduction member fixing portion 83 of the arm 80, thereby preventing the movement of the guide wire 22 and allowing only the catheter 21 to move freely. At this time, the introduction member fixing portion 83 is provided above the cap portion 60 and offset in the lateral direction from directly above the hole 63 for the introduction member, so it is possible to prevent the fixed guide wire 22 from getting in the way during the operation of the catheter 21. Also, even when the arm 80 rotates with respect to the cap portion 60, since the arm 80 does not rotate with respect to the main body portion 10, a certain form can be maintained. By maintaining a certain form, a longer arm 80 can be provided, so it is possible to prevent interference when operating the introduction member.

Industrial Applicability

[0033] As shown in the above-described embodiments, it can be used as an auxiliary tool in surgery using a guide wire or a catheter.

Description of Reference Numerals

[0034] 10... main body portion, 11... main tube portion, 11a... passage portion, 11b... expanded passage portion, 12... side tube portion, 12a... thread groove, 12b... side tube passage portion, 20... introduction member, 21... catheter, 22... guide wire, 30... hemostatic valve, 31... hemostatic valve recess, 32... slit, 32a... upper slit, 32b... lower slit, 35... insertion portion, 40... pusher, 41... disk portion, 42... extended portion, 44... engagement recess, 46... introduction member insertion hole, 60... cap portion, 61... attached portion, 62... engagement piece, 63... hole for introduction member, 80... arm, 83... introduction member fixing portion, 83a... notch, 84... cap portion fixing portion, 85... side tube portion fixing portion, 100... Y-shaped connector

Claims

1. A main body 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 body portion; A cap portion provided on the main body portion and having a disk-shaped attachment portion provided on the upper surface; 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 that can be fitted into the attachment portion of the cap portion; Comprising: The arm is a Y-shaped connector characterized in that it is detachable from the side of the cap portion.

2. The Y-shaped connector according to claim 1, wherein the arm is rotatably provided on the cap portion.

3. The Y-shaped connector according to claim 1 or 2, wherein the arm has a side tube portion fixing portion for fixing to the side tube portion.

4. The Y-shaped connector according to any one of claims 1 to 3, wherein the arm is made of a flexible member.

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