JPWO2008078393A1 - Connector with hemostasis valve - Google Patents

Abstract

About the connector which has a hemostatic valve, the improvement of operativity at the time of opening and closing the hemostatic valve is aimed at. The Y connector (10) is used by being attached to an end portion of a guiding catheter for inserting an introduction member such as a catheter to a treatment target site. The Y connector has a hemostasis valve (36), and further has an opener (42) for opening and closing the hemostasis valve. In such a configuration, the rotating component (43) is assembled to the opener, and a spring (72) for biasing the rotating component and the opener toward the closed position is provided. When the opener is pressed to the open position, the rotating component rotates, and the opener is naturally held at the open position based on the rotation. Moreover, by releasing the holding state, the opener automatically returns to the closed position by the biasing force of the spring.

Description

  The present invention relates to a connector having a hemostasis valve used when a catheter or the like is inserted into a treatment target site.

  In the treatment of heart diseases such as PTCA (percutaneous coronary angioplasty), an introduction member such as a catheter is used, and the introduction member is inserted to a treatment target site using a guiding catheter. A connector is attached to the proximal end of this guiding catheter.

  As a connector, for example, there is a Y connector as shown in Patent Document 1. The Y connector has a first tube portion and a second tube portion branched from the first tube portion, and the introduction member is introduced into the guiding catheter through the first tube portion. At the same time, a liquid supply device for supplying physiological saline or contrast medium is connected to the second tube section.

The connector is provided with a hemostasis valve for closing a gap between the first pipe part and the introduction member at a midway position of the first pipe part and suppressing blood outflow through the gap. Yes. In addition, an opener is provided as an opening / closing means for opening the closed state of the hemostasis valve in order to temporarily improve the operability of the introduction member.
JP 2005-261759 A

  Here, in a therapeutic action using a catheter or the like, a catheter insertion operation or a contrast agent supply operation is performed with the other hand while the connector is held with one hand. That is, the opening / closing operation of the hemostasis valve by the opener is performed with one hand, and it is necessary to improve the operability. On the other hand, in the connector disclosed in Patent Document 1, in order to maintain the hemostasis valve at least in the open state, the opener needs to be held by hand in the open state, and the operation is complicated.

  Further, in the above configuration, the opener is urged toward the position where the hemostasis valve is closed by the elastic force of the hemostasis valve, and by stopping the holding, the opener automatically returns and the hemostasis valve becomes closed. Conceivable. However, the hemostasis valve may not be provided with a sufficient urging force for returning the opener to the closed position, and the urging force of the hemostasis valve may be reduced in the course of the treatment. In this case, it becomes necessary to manually move the opener to a position where the hemostasis valve is closed, and the operation becomes complicated.

  This invention is made | formed in view of the said situation, and aims at improving the operativity at the time of opening and closing the hemostatic valve about the connector which has a hemostatic valve.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

The connector of the present invention
A tubular substrate through which an introduction member such as a catheter is inserted;
A hemostasis valve that closes a gap between the peripheral wall of the tube hole of the tubular base body and the introduction member;
The introduction member has an insertion hole through which the insertion member is inserted into the tube hole from the proximal end side of the tubular base so that the insertion hole is on the same axis as the tube hole. Opening and closing means movable along the axial direction to respective positions of a closed position that is not opened and an open position that penetrates and opens the hemostasis valve;
Biasing means for biasing the opening / closing means toward the closed position;
Based on the fact that the opening / closing means moves along the axial direction against the urging force of the urging means and reaches the opening position, the opening / closing means is held at the opening position, and based on a holding release operation. Holding means for releasing the holding state.

  In this configuration, in order to temporarily improve the operability of the introduction member inserted through the tubular base body, the opening / closing means is moved to the open position against the urging force of the urging means, and the hemostasis valve is opened. That's fine. In this case, the opening / closing means is held at the open position based on the arrival at the open position, and the hemostatic valve is kept open. Therefore, it is not necessary to hold the opening / closing means by hand in the open position in order to maintain the hemostasis valve in the open state. Furthermore, it is only necessary to move the opening / closing means to the open position, and no special operation is required to hold the opening / closing means in the open position. Therefore, the operability when opening the hemostasis valve is improved. Further, since the biasing means is provided, when the holding release operation is performed and the holding state of the opening / closing means is released, the opening / closing means is automatically moved to the closed position, and the hemostasis valve is closed. In particular, since the urging force for urging the opening / closing means toward the closed position is provided by the urging means provided separately from the hemostasis valve, a sufficient urging force can be given to the opening / closing means. Further, it is possible to suppress the urging force from being reduced during the course of the treatment. Therefore, a favorable state is maintained for the opening / closing operation of the hemostasis valve. As described above, the operability when opening and closing the hemostasis valve is improved.

  In addition, as the opening / closing means, an opening / closing member in which a penetrating portion that penetrates the hemostasis valve and opens the hemostasis valve and a held portion held by the holding means can be considered, and each is provided separately. The structure which has a penetration part and a to-be-held part can be considered. Further, a configuration in which an operating portion (pressing portion) for pressing the opening / closing means is integrally formed with the opening / closing member, or a configuration provided separately from the opening / closing member can be considered. Furthermore, the structure which has a penetration part, a to-be-held part, and a press part as a different body can be considered, respectively.

  Further, as the biasing means, a helical spring, a disc spring, a leaf spring, a rubber body, an enclosing member enclosing a compressive fluid, or the like can be considered.

  Further, as the holding means, a holding surface part that receives a part of the opening / closing means, a holding hole part into which a part of the opening / closing means enters can be considered.

  In addition to the catheter, the introduction member may be a guide wire or the like.

  The holding means holds the opening / closing means in the open position based on the fact that the opening / closing means moves from the closed position toward the distal end side of the tubular base and reaches the open position. The holding state may be canceled based on the movement toward the tip side. In this case, the hemostasis valve returns to the closed state by the same operation as the operation for opening the hemostasis valve, and the opening and closing operation of the hemostasis valve is unified, thereby improving the operability.

  The opening / closing means may be protruded outward from the base end side of the tubular base body, and the protruding portion may be used as an operation site for opening and closing the hemostasis valve. In such a configuration, when the opening / closing means is moved to the open position, it is only necessary to press the protruding portion of the opening / closing means toward the distal end side of the tubular base body, and when the hemostasis valve is opened by the hand holding the tubular base body. It becomes easy to perform the operation. Further, as a means for operating the opening / closing means, an operation lever provided separately from the opening / closing means is assumed, but in such a configuration, it is necessary to link the operation lever and the opening / closing means. There is concern about the complexity of the configuration due to the addition. On the other hand, according to the present configuration, it is not necessary to add the link mechanism, and the configuration is not complicated.

  The projecting portion may be provided with a flange portion that is continuously or discontinuously annular at the projecting side tip. In this case, the opening / closing means can be pressed from any angle with respect to the axis of the opening / closing means, and the operability when the opening / closing means is pressed is improved.

  The opening / closing means, when in the open position, is provided with a penetrating portion that penetrates the hemostasis valve and opens the hemostasis valve, and is rotatable about the axis as a rotation axis and movable in the axial direction together with the penetrating portion. When moving from the position to the open position, it is preferable to include a rotating unit that rotates to the holding rotation position, is held by the holding means, and rotates to the non-holding rotation position based on the holding release operation to release the holding state. . In this case, the function of opening and closing the hemostasis valve by the penetrating portion is fulfilled, and the function of being held naturally in the open position by the rotating portion is fulfilled, and as described above, the operability when opening and closing the hemostasis valve is improved. It is done.

  In the configuration including the penetrating portion and the rotating portion as described above, the rotating portion may be configured to rotate to the holding rotation position and the non-holding rotation position based on the biasing force of the biasing means. In this case, the urging means that urges the opening / closing means toward the closed position is also used as a means for rotating the rotating portion, so that the number of members can be reduced.

  Further, the penetrating portion and the rotating portion are provided separately, and the penetrating portion extends in the axial direction and has an insertion hole. The rotating portion has a cylindrical shape, and the penetrating portion is inserted into the cylindrical shape. Further, it is preferable that the rotating portion is integrally movable in the axial direction with respect to the penetrating portion and is assembled so that the rotational movement of the rotating portion is not transmitted to the penetrating portion. In this case, in the configuration in which the opening / closing means is naturally held at the open position using the rotating portion, the penetration portion that opens and closes the hemostasis valve only moves in the axial direction and does not rotate. Therefore, when the hemostasis valve is opened and closed, the rotation movement of the rotating portion is prevented from being transmitted to the introduction member passing through the insertion hole of the penetration portion, and the hemostasis valve is opened and closed without affecting the introduction operation of the introduction member. The operability when doing so is improved.

  In addition, it is preferable to provide a blocking means between the penetrating part and the rotating part for preventing movement of the penetrating part to the closed position when at least the rotating part is held by the holding means. In this case, in the configuration in which the penetrating portion and the rotating portion are provided separately as described above, the penetrating portion is reliably held at the open position in a situation where the rotating portion is held by the holding means.

  As the blocking means, a restricting portion is provided in either the penetrating portion or the rotating portion, and the other is a contact portion that comes into contact with the restricting portion when the penetrating portion moves in a direction away from the rotating portion. The structure which provides can be considered. The restricting portion or the abutting portion may be integral with or separate from the penetrating portion or the rotating portion.

  In addition, the rotating part has a structure to be held by the holding means at the holding rotation position on the outer surface side, and the penetrating part extends further to the distal end side of the tubular base than the rotating part, and is in the open position. In some cases, the opening of the hemostasis valve may be in close contact with the peripheral surface of the penetrating portion so that the inflow of blood to the held portion side is suppressed. In this case, it is suppressed that blood adheres to the held portion when the hemostasis valve is opened. Since blood coagulates in a relatively short time, if blood adheres to the held portion, there is a possibility that the opening and closing operation of the hemostasis valve cannot be performed well during the treatment. On the other hand, even if it is the treatment which requires a long time by suppressing that blood adheres to a to-be-held part as mentioned above, a favorable state is maintained about opening and closing operation of a hemostatic valve.

  The opening / closing means may be provided in a region where the inflow of blood is suppressed more proximally than the hemostasis valve. In this case, it is suppressed that blood adheres to the urging means. Since blood coagulates in a relatively short time as described above, if blood adheres to the urging means, the urging force of the urging means may be reduced during treatment, and the opening and closing operation of the hemostasis valve may not be performed well. There is. On the other hand, by suppressing the blood from adhering to the urging means as described above, a good state is maintained for the opening and closing operation of the hemostasis valve even if the treatment requires a long time.

  Further, the opening / closing means has a cylindrical shape extending along the axial direction, and the urging means is provided on the base end side of the hemostasis valve and outside the opening / closing means. On the other hand, it is preferable that the opening of the hemostasis valve is in close contact and the blood flow to the biasing means side is suppressed. In this case, it is possible to prevent blood from adhering to the biasing means when the hemostasis valve is opened.

  Further, in the configuration in which the urging means is provided on the proximal end side with respect to the hemostasis valve, the tubular base body is configured to have an accommodating cylinder portion that accommodates the urging means on the proximal end side with respect to the hemostasis valve, and the accommodating cylinder portion. It is preferable to integrally form the holding means. In this case, the accommodating cylinder portion that accommodates the urging means also serves as a holding means, and the number of members is reduced as compared with a configuration in which a function for accommodating the urging means and a function as the retaining means are provided separately. be able to.

The front view which shows the structure of the Y connector in 1st Embodiment. The longitudinal cross-sectional view which shows the structure of Y connector. (A) is a front view which shows the cover body which comprises an opening / closing unit, (b) is a front view which shows the opener which comprises an opening / closing unit, (c) is a front view which shows the rotation components which comprise an opening / closing unit. 3A is a cross-sectional view taken along line AA in FIG. 3A, FIG. 3B is a cross-sectional view taken along line BB in FIG. 3B, and FIG. 3C is a cross-sectional view taken along line CC in FIG. . The longitudinal cross-sectional view of the Y connector for demonstrating the mode of opening and closing of a hemostatic valve. Schematic for demonstrating the movement of an opening-and-closing unit. The longitudinal cross-sectional view which shows the structure of a part of Y connector in 2nd Embodiment. The longitudinal cross-sectional view which shows the structure of a part of Y connector.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Y connector, 11 ... Connector main body which comprises a tubular base | substrate, 14 ... Tube hole, 25 ... Screw which comprises a tubular base | substrate, 31 ... Pusher which comprises a tubular base | substrate, 36 ... A hemostatic valve, 40 ... Opening / closing unit, 41 ... Cover body constituting the tubular base, 42 ... Opener constituting the opening / closing means, 43 ... Rotating component constituting the opening / closing means, 51 ... Inner hole as the communication hole, 52 ... Inner cylinder part as the through-hole, 68 ... Holded Second projection as part, 70 ... C-type washer as blocking means, 71 ... Flange body, 72 ... Spring, 81 ... Inclined surface constituting holding means, 100 ... Opening / closing unit, 101 ... Pressing member, 102 ... Rotary opener .

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the configuration of the Y connector 10, and FIG. 2 is a longitudinal sectional view of the Y connector 10.

  The Y connector 10 has a connector body 11 formed in a Y shape from a synthetic resin having transparency. The connector main body 11 is tubular and has a first pipe part 12 whose axis is linear, and is branched from the middle position of the first pipe part 12, and has a tubular shape and its axis is curved. And a second pipe portion 13. The tube hole 14 of the first tube part 12 and the tube hole 15 of the second tube part 13 are in communication. A rib 16 is formed at a branch portion between the first tube portion 12 and the second tube portion 13.

  A rotator 18 for attaching a guiding catheter is attached to the distal end portion (lower side in the state of FIG. 1) of the first tube portion 12. The rotator 18 has a double cylindrical shape, the inner hole 18a is on the same axis as the tube hole 14 of the first tube portion 12, and the outer hole 18b has a mounting groove for mounting a guiding catheter on its peripheral wall. Is formed. An introduction member such as a catheter or a guide wire inserted through the Y connector 10 is introduced into the guiding catheter through the tube hole 14 of the first tube portion 12. Note that a liquid agent supplier for supplying a liquid agent such as a physiological saline or a contrast medium is connected to the end of the second tube part 13 in the extending direction.

  As shown in FIG. 2, the base end side of the tube hole 14 of the first pipe portion 12 is expanded in diameter via a tapered stepped portion 21, and a fixed valve 23 is accommodated in the expanded diameter portion 22. . The fixed valve 23 is formed in a cylindrical shape from a synthetic resin having elasticity such as silicon rubber. The fixed valve 23 has an outer surface held in close contact with the inner surface of the enlarged diameter portion 22 and a tapered end surface held in close contact with the tapered stepped portion 21. In this case, the valve hole 23 a of the fixed valve 23 is on the same axis as the tube hole 14.

  A screw 25 is attached to the base end portion of the first pipe portion 12, and a pusher 31 for compressing the fixed valve 23 is accommodated in the screw 25. Specifically, the screw 25 is formed in a bottomed cylindrical shape with a synthetic resin having transparency. A through hole 26a is formed at the center of the bottom portion 26 of the screw 25, and an upright wall 26b is formed at the peripheral portion of the through hole 26a so as to stand outward from the screw 25.

  A screw thread 27 is formed on the inner surface of the screw 25, and a screw groove 12 a is formed on the outer surface of the proximal end portion of the first tube portion 12 correspondingly. And the base end part of the 1st pipe part 12 is inserted with respect to the opening 28 of the screw 25, and the screw thread 27 and the screw groove 12a have meshed | engaged. In this case, the screw 25 is on the same axis as the first pipe portion 12. A washer 29 is fitted on the opening 28 side of the screw 25, and the washer 29 abuts on the outer surface of the first pipe portion 12 to prevent the screw 25 from coming off.

  The pusher 31 is formed in a cylindrical shape from a synthetic resin having transparency, and a tapered surface 33 having a diameter expanded toward the other opening side is formed on one opening side of the pusher hole 32, A valve receiving portion 35 whose diameter is increased via a stepped portion 34 is formed on the opening side. The pusher 31 has an end surface on the side where the valve receiving portion 35 is formed in close contact with the bottom portion 26 of the screw 25, and further an outer surface on the side where the valve receiving portion 35 is formed in close contact with the inner surface of the screw 25. Each is bonded as a shape.

  In a state where the screw 25 is attached to the first tube portion 12, the end portion of the pusher 31 on the side where the tapered surface 33 is formed enters the tube hole 14 of the first tube portion 12. The pusher 31 is in close contact with the inner surface of the first pipe portion 12, and further in close contact with the proximal end surface of the fixed valve 23.

  By providing the screw 25 and the pusher 31 as described above, the fixed valve 23 can be in a compressed state. That is, by rotating the screw 25, the screw 25 moves toward the tip of the first pipe portion 12 by meshing the screw thread 27 and the screw groove 12a. As the screw 25 moves, the pusher 31 also moves integrally, and the pusher 31 presses the fixed valve 23. Since the fixed valve 23 is in contact with the tapered step portion 21 of the first pipe portion 12 as described above, the fixed valve 23 is compressed by being pressed by the pusher 31, and the valve hole 23a is reduced in diameter. By reducing the diameter of the valve hole 23a, an introduction member such as a catheter or a guide wire inserted through the Y connector 10 is placed. In addition, by rotating the screw 25 in the direction opposite to the rotation operation, the screw 25 moves toward the proximal end of the first pipe portion 12, and the compressed state of the fixed valve 23 is released.

  A hemostatic valve 36 is accommodated in the valve receiving portion 35 of the pusher 31. The hemostasis valve 36 is formed in a disc shape from an elastic synthetic resin such as silicon rubber, and a slit penetrating in the thickness direction is formed at the center thereof. The hemostasis valve 36 has a flange 37 integrally formed on one end face side, and the flange 37 is bonded to the stepped portion 34 of the pusher 31. In this case, the flange 37 is in close contact with the stepped portion 34. Further, a part of the hemostasis valve 36 enters the tip side from the valve receiving portion 35 in the pusher 31. Since the hemostasis valve 36 is provided, the outflow of blood to the proximal end side of the Y connector 10 is suppressed even when the introduction member such as a catheter or a guide wire is inserted.

  Here, an opening / closing unit 40 for opening / closing the hemostasis valve 36 is attached to the Y connector 10. The opening / closing unit 40 will be described below. 3 is an exploded front view showing the main structure of the opening / closing unit 40, FIG. 4A is a cross-sectional view taken along the line AA in FIG. 3A, and FIG. 4B is a cross-sectional view taken along the line B- in FIG. B line sectional drawing and FIG.4 (c) are CC sectional view taken on the line of FIG.3 (c).

  The opening / closing unit 40 includes a cover body 41, an opener 42, and a rotating part 43 as main components. The cover body 41 is formed in a cylindrical shape from a synthetic resin having transparency. The inner surface of the cover body 41 is stepped at an intermediate position in the axial direction, and a small diameter portion 45 having a hole diameter L1 and a large diameter portion 46 having a hole diameter L2 are formed (L1 < L2). The hole diameter L2 of the large diameter portion 46 is slightly larger than the hole diameter of the screw 25 and slightly smaller than the outer diameter of the screw 25.

  A plurality of (specifically, four) slide grooves 47 extending in the axial direction are formed in the small diameter portion 45 at intervals of 90 ° (see FIG. 4A). Each slide groove 47 has a depth dimension corresponding to a step dimension between the large diameter portion 46 and the small diameter portion 45. In other words, the hole diameter between the slide grooves 47 facing each other in the small diameter portion 45 is the same as the hole diameter L <b> 2 of the large diameter portion 46. Each slide groove 47 has one end opened to the large-diameter portion 46 side, while the other end is closed by a closing portion 48 formed so that the peripheral wall of the small-diameter portion 45 rises inward. ing. Note that a plurality of protruding ribs 49 are formed on the outer surface of the cover body 41 along the axial direction, and rigidity is increased.

  The cover body 41 is inserted with an opener 42 and a rotating component 43 that are integrally assembled so as to be slidable in the axial direction. The opener 42 and the rotating component 43 will be described in detail. The opener 42 is formed in a double cylindrical shape with a synthetic resin having transparency. That is, as shown in FIG. 2 and the like, the opener 42 includes an inner cylinder portion 52 having a predetermined length dimension and constituting the inner hole 51, and is folded back from one end portion of the inner cylinder portion 52. Thus, the outer cylinder part 54 which comprises the bottomed outer hole 53 between the outer surface of the inner cylinder part 52 is formed.

  The inner cylinder part 52 is larger in length than the outer cylinder part 54. The hole diameter of the inner hole 51 is substantially the same as the hole diameter on the distal end side of the diameter-enlarged part 22 in the first pipe part 12, and the end part of the inner hole 51 on the outer cylinder part 54 side is enlarged toward the outside. As shown in FIG. The outer diameter L3 of the outer cylinder portion 54 is the same as the hole diameter L1 of the small diameter portion 45 in the cover body 41 (L3 = L1). Note that the outer diameter L3 of the outer cylindrical portion 54 may be smaller than the hole diameter L1 of the small diameter portion 45 (L3 <L1). A plurality (specifically, four) of protrusions 55 are formed at 90 ° intervals on the outer surface of the distal end of the outer cylinder portion 54 so as to correspond to the slide grooves 47 of the cover body 41 on a one-to-one basis. (See FIG. 4B). The protrusion dimensions of the protrusions 55 are the same as the depth dimensions of the slide groove 47. That is, the outer diameter L4 between the protrusions 55 facing each other in the outer cylinder portion 54 is the same as the hole diameter L2 of the large diameter portion 46 in the cover body 41 (L4 = L2). The outer diameter L4 may be smaller than the hole diameter L2 of the large diameter part 46 within a range larger than the hole diameter L1 of the small diameter part 45 (L1 <L4 <L2). A tapered surface 56 is formed on the inner surface of the outer cylinder portion 54 so that the diameter of the opening side of the outer hole 53 is increased.

  The rotating component 43 is formed in a cylindrical shape from a synthetic resin having transparency. An annular recess 63 is formed on the outer surface of the rotating component 43 by a tapered step 61 and a linear step 62 at an intermediate position in the axial direction. Further, the tapered step portion 61 side with respect to the concave portion 63 has a constant outer diameter over a predetermined length (this portion is also referred to as a base portion 64 hereinafter), and the linear step portion 62 side is tapered. (This portion is hereinafter also referred to as a tapered portion 65). A stepped portion 67 is formed in the shaft hole 66 of the rotating component 43 at a position corresponding to the tapered stepped portion 61, and the base portion 64 has a portion corresponding to the recessed portion 63 and the tapered portion 65. The corresponding part has a larger hole diameter.

  A plurality of (specifically, four) protrusions 68 are formed at intervals of 90 ° on the outer surface of the base 64 so as to correspond to the protrusions 55 of the opener 42 as one body 1 (FIG. 4C). )reference). Hereinafter, the protrusion 55 of the opener 42 is referred to as a first protrusion 55, and the protrusion 68 of the rotating component 43 is referred to as a second protrusion 68. The protrusion dimension of the second protrusion 68 is larger than the protrusion dimension of the first protrusion 55, and the outer diameter L5 between the second protrusions 68 facing each other in the rotating component 43 is the first protrusion facing in the outer cylinder part 54. It is the same as the outer diameter L4 between 55 (L5 = L4). The outer diameter L5 may be smaller than the outer diameter L4 within a range larger than the outer diameter L3 of the outer cylindrical portion 54 (L3 <L5 <L4).

  As shown in FIG. 2, the rotating component 43 is inserted into the outer hole 53 of the opener 42. In this case, the inner cylindrical portion 52 of the opener 42 passes through the shaft hole 66 of the rotating component 43, and the inner hole 51 is on the same axis as the shaft hole 66. The rotating component 43 is rotatable with respect to the opener 42 about its axis.

  The movement of the rotating component 43 in the insertion direction is restricted by the second protrusion 68 coming into contact with the tip of the outer cylinder portion 54 of the opener 42. In this case, depending on the rotational position of the rotating component 43, the first protrusion 55 and the second protrusion 68 are aligned in the axial direction, and the pair of first protrusion 55 and the second protrusion 68 aligned in the axial direction abut. . At this restricted position (insertion-side restricted position), a C-type washer 70 as a blocking means is attached at a position facing the recess 63 of the rotating component 43 in the opener 42.

  The C-type washer 70 is fitted into an annular groove formed on the inner surface of the outer cylinder portion 54, and the inner peripheral side protrudes into the outer hole 53 and further enters into the recess 63 of the rotating component 43. By attaching this C-type washer 70, even if the rotating component 43 is moved in the anti-insertion direction, further movement is restricted at the position where the linear stepped portion 62 contacts the C-type washer 70, The detachment of the rotating component 43 from the opener 42 is prevented.

  Incidentally, since the tapered part 65 is formed in the rotating part 43 as described above, when the rotating part 43 is inserted into the opener 42 to which the C-type washer 70 is attached, the C-type washer 70 is tapered. The tapered portion 65 is slightly elastically deformed by hitting the tapered outer surface. As a result, the rotating component 43 can be attached to the opener 42.

  The opener 42 in which the rotating component 43 is integrally assembled is inserted from the opening on the large diameter portion 46 side of the cover body 41, and the end on the side where the outer cylinder portion 54 is formed is the opening on the small diameter portion 45 side. Projecting outwards. In this case, the inner hole 51 of the opener 42 and the shaft hole 66 of the rotating component 43 are on the same axis as the hole of the cover body 41.

  In a state where the opener 42 is protruded by a predetermined amount from the opening on the small diameter portion 45 side, the pair of first protrusions 55 and second protrusions 68 are inserted into the respective slide grooves 47. In this state, the opener 42 and the rotating component 43 are prevented from rotating around the axis. The movement of the opener 42 in the insertion direction is restricted at a position where the first protrusion 55 abuts against the closing portion 48 of the slide groove 47 (hereinafter, this restricted position is also referred to as a maximum projecting position).

  An annular flange body 71 is fixed to the end of the opener 42 on the side protruding outward by an adhesive or the like. The outer peripheral side of the flange body 71 protrudes outward from the outer surface of the outer cylinder portion 54, and movement of the opener 42 in the anti-insertion direction is restricted at a position where the flange body 71 contacts the end surface of the cover body 41. (Hereinafter, this restricted position is also referred to as a minimum protruding position). The outer diameter of the flange body 71 is smaller than the outer diameter of the cover body 41, and the flange body 71 does not protrude outward from the outer surface of the cover body 41 at the minimum protruding position.

  The opening / closing unit 40 described above is attached to the screw 25. Specifically, a plurality of fitting grooves 41a are formed in the large-diameter portion 46 of the cover body 41 from the opening to the midway position in the axial direction (see FIG. 4 (a), etc.). The screw 25 is formed with a plurality of fitting protrusions 25a. Then, the inner surface of the large-diameter portion 46 is superimposed on the outer surface of the screw 25 so that the fitting convex portion 25a enters the fitting groove 41a. In addition, although the screw 25 and the cover body 41 are being fixed with the adhesive agent, the fixing method is arbitrary. The inner hole 51 of the opener 42 and the shaft hole 66 of the rotating component 43 are on the same axis as the tube hole 14 of the first pipe portion 12.

  As shown in FIG. 2, a helical spring 72 as a biasing means is accommodated in the cover body 41. Note that the biasing means is not limited to the helical spring, and conical members in which a disc spring, a leaf spring, a rubber body, and a compressive fluid are sealed are conceivable. The helical spring 72 is provided in a state where the inner cylindrical portion 52 of the opener 42 is inserted, and is further provided in a compressed state between the rotating component 43 and the screw 25. In this case, one end of the helical spring 72 is in contact with the stepped portion 67 of the rotating component 43, and the other end is in contact with the bottom portion 26 of the screw 25. Since the helical spring 72 is provided, the opener 42 and the rotating component 43 are urged toward the base end of the Y connector 10 and are in the maximum projecting position.

  At the maximum projecting position, the distal end of the inner cylindrical portion 52 of the opener 42 enters the screw 25 through the through hole 26 a and is in contact with the end face on the proximal end side of the hemostatic valve 36. In addition, it is not essential to contact | abut in this state, Both may be spaced apart. Here, as described above, the standing wall 26b is formed at the peripheral edge portion of the through hole 26a in the screw 25 so as to stand outward from the screw 25, and the inner cylinder portion 52 is guided by the standing wall 26b. Thereby, the position shift of the inner hole 51 of the opener 42 with respect to the tube hole 14 of the 1st pipe part 12 does not arise.

  In the above configuration, by pressing the flange body 71 of the opener 42 and sliding the opener 42 toward the minimum protruding position, the slit of the hemostatic valve 36 is expanded by the inner cylindrical portion 52 of the opener 42, and the hemostatic valve 36. Changes from the closed state to the open state (see FIGS. 5B and 5C).

  Here, in the Y connector 10, when the opener 42 is slid toward the minimum protruding position and the hemostasis valve 36 is opened, the open state is naturally held by the rotation of the rotating component 43. Yes. Therefore, a configuration relating to such holding will be described below.

  As shown in FIG. 3A, an end surface that forms a step with the large diameter portion 46 is an inclined surface 81 in the small diameter portion 45 of the cover body 41. As described above, a plurality of slide grooves 47 are formed at equal intervals in the small diameter portion 45, and the inclined surface 81 is formed between the slide grooves 47. Each of these inclined surfaces 81 has the same shape and is inclined in the same direction. The inclined surface 81 is stepped in the axial direction by the holding step portion 82, and has a holding inclined surface 83 and a releasing inclined surface 84 projecting toward the larger diameter portion 46 than the holding inclined surface 83.

  Moreover, as shown in FIG.3 (b), the front-end | tip of the outer cylinder part 54 of the opener 42 has a mountain shape. Specifically, it is formed so as to be a top portion 86 at a portion of each first protrusion 55 and further to be a top portion 86 at an intermediate position of each first protrusion 55.

  Further, as shown in FIG. 3C, when the second protrusion 68 of the rotating component 43 is aligned with the first protrusion 55 in the axial direction, the end surface that contacts the first protrusion 55 is on one side in the circumferential direction. The inclined surface 88 is inclined. The inclination angle and the inclination direction of the inclined surface 88 correspond to the holding inclined surface 83 and the releasing inclined surface 84 of the cover body 41, respectively. That is, the inclined surface 88 is formed so as to be superimposed on each of the holding inclined surface 83 and the releasing inclined surface 84.

  Next, how the hemostatic valve 36 is opened and closed will be described. FIG. 5 is a longitudinal sectional view for explaining how the hemostatic valve 36 is opened and closed, and FIG. 6 is a schematic diagram for explaining the movement of the opening / closing unit 40 when the hemostatic valve 36 is opened and closed.

  First, the situation when the hemostasis valve 36 is opened will be described.

  As shown in FIG. 5A, in the natural state, the opener 42 is in the maximum protruding position (closed position) by the biasing force of the helical spring 72, and the hemostasis valve 36 is closed. In this case, as shown in FIG. 6A, the first protrusion 55 and the second protrusion 68 are aligned in the axial direction, and the pair of protrusions 55 and 68 are in the slide groove 47, respectively.

  Thereafter, as shown in FIG. 5 (b), when the opener 42 is pressed toward the tip of the Y connector 10, the opener 42 slides against the urging force of the helical spring 72, and the flange body 71. Reaches the minimum protruding position where it contacts the cover body 41. In this case, the slit of the hemostasis valve 36 is expanded by the inner cylindrical portion 52 of the opener 42, and the hemostasis valve 36 is opened. At this time, the hemostasis valve 36 is in close contact with the outer surface of the inner cylinder portion 52. Further, an interval exceeding the distance from the maximum protruding position to the minimum protruding position is secured between the hemostatic valve 36 and the fixed valve 23. Therefore, the opener 42 and the fixed valve 23 do not interfere with each other. Further, since the flange body 71 has an annular shape, the degree of freedom of the position where the finger or the like is applied when the pressing operation is performed is increased, and the operability is improved.

  When the opener 42 reaches the minimum protruding position as described above, the front end of the outer cylindrical portion 54 of the opener 42 is on the front end side of the Y connector 10 with respect to the inclined surface 81 of the cover body 41 as shown in FIG. Furthermore, only the second protrusion 68 out of the first protrusion 55 and the second protrusion 68 is in a state of being removed from the slide groove 47. In such a state, as described above, the tip of the outer cylindrical portion 54 has a mountain shape so as to be the top at the site of the first projection 55, and the inclined surface 88 is formed on the second projection 68, Further, since the rotating component 43 receives the biasing force of the helical spring 72, the rotating component 43 rotates about the axis as the center of rotation, and the state shown in FIG. In this state, the second protrusion 68 is received by the mountain-shaped valley portion. In this state, since the state where the first protrusion 55 enters the slide groove 47 is maintained, the opener 42 does not rotate in accordance with the rotation of the rotating component 43.

  Thereafter, when the pressing operation of the opener 42 is stopped, the rotating component 43 is moved toward the base end of the Y connector 10 by the biasing force of the helical spring 72, and the opener 42 is also moved toward the maximum projecting position. To do. However, in this case, since the rotating component 43 is rotated to the above position, the second protrusion 68 contacts the holding inclined surface 83 of the cover body 41. Then, the second protrusion 68 slides along the inclination of the holding inclined surface 83 so that the rotating component 43 rotates and the second protrusion 68 contacts the holding step portion 82 as shown in FIG. It becomes. In this state, even if the opener 42 is moved to the maximum projecting position side, the movement is within a range in which the C-type washer 70 and the stepped portion 67 of the rotating component 43 are in contact with each other and the opened state of the hemostatic valve 36 is not released. Be regulated. Therefore, the open state of the hemostasis valve 36 is reliably maintained.

  As described above, when the opener 42 is slid to open the hemostasis valve 36, the open state is naturally held. Note that the amount of protrusion of the opener 42 with respect to the cover body 41 differs greatly between when the hemostatic valve 36 is in the open state and when it is in the closed state. It can be easily grasped whether it is in the closed state or the open state.

  Next, the situation when the hemostasis valve 36 is closed again will be described.

  By pressing the opener 42 in the open position toward the tip of the Y connector 10 as described above, the opener 42 slides against the urging force of the helical spring 72, as shown in FIG. As described above, the flange body 71 reaches the minimum protruding position where it comes into contact with the cover body 41.

  In this case, as shown in FIG. 6 (e), the distal end of the outer cylindrical portion 54 of the opener 42 is closer to the distal end side of the Y connector 10 than the inclined surface 81 of the cover body 41, and the second protrusion 68 is formed on the cover body 41. From the state of being placed on the holding inclined surface 83, the state is placed on the tip of the outer cylinder portion 54. In this state, the second protrusion 68 moves along the mountain shape of the outer cylindrical portion 54, so that the rotating component 43 rotates and is received by the mountain-shaped valley portion. The valley portion is located on the side of the release inclined surface 84 with respect to the holding step portion 82 when viewed in the rotation direction of the rotating component 43. In addition, the rotation direction of the rotating component 43 at this time is the same as the rotation direction when the hemostasis valve 36 is opened.

  Thereafter, when the pressing operation of the opener 42 is stopped, the rotating component 43 is moved toward the base end of the Y connector 10 by the biasing force of the helical spring 72, and the opener 42 is also moved toward the maximum projecting position. To do. Then, at the midpoint of the movement, the second protrusion 68 changes from the state of being placed on the tip of the outer cylindrical portion 54 to the state of being placed on the release inclined surface 84, and further along the inclination of the release inclined surface 84. As the protrusion 68 moves, the rotating component 43 rotates. As a result, as shown in FIG. 6 (f), the second protrusion 68 enters the slide groove 47, and the first protrusion 55 and the second protrusion 68 are aligned in the axial direction, and the maximum protrusion position of the opener 42. Can be moved to. The opener 42 reaches the maximum protruding position by the biasing force of the helical spring 72.

  When the opener 42 reaches the maximum projecting position, the state shown in FIG. 5A is obtained, and the hemostasis valve 36 is closed. That is, the hemostatic valve 36 is automatically closed by pressing the opener 42 in the holding state in the same direction as when it is opened.

  Next, a characteristic configuration of the second pipe portion 13 in the connector main body 11 will be described with reference to FIG.

  The second tube portion 13 is formed to bend in a direction to escape from the first tube portion 12. Specifically, the branching portion side region 91 and the extended end portion side region 92 in the second pipe portion 13 are each formed in a straight line shape, and a curved region 93 is formed between both the regions 91 and 92. And the tube hole 15 of the 2nd pipe part 13 is also formed according to the shape of each said area | region 91,92,93.

  In the curved configuration as described above, the angle (branching angle) D1 of the tube hole 15 in the branch portion side region 91 with respect to the tube hole 14 of the first tube portion 12 is relative to the tube hole 14 of the first tube portion 12. The angle is smaller than the angle (acceptance angle) D2 of the tube hole 15 in the extended end portion region 92. More specifically, the branching angle D1 is about 50 °, and the receiving angle D2 is about 70 °. The branching angle D1 may be 50 ° or more in a range narrower than the receiving angle D2, and the receiving angle D2 is not limited to 70 ° as long as the receiving angle D2 is 60 ° or more.

  Since the receiving angle D2 of the second pipe portion 13 is set to 60 ° or more, when connecting a device such as a liquid supply device to the second pipe portion 13, the device is connected to the first pipe portion 12 or the opening / closing unit 40. So that the connection work can be easily performed. In addition, the branch angle D1 is 50 °, which is narrower than the receiving angle D2, so that the resistance when the liquid agent supplied into the second pipe portion 13 is introduced into the first pipe portion 12 is reduced. Thus, the liquid agent can be introduced satisfactorily. Further, in the configuration in which the branching angle D1 is narrower than the receiving angle D2, the branching angle D1 is set to 50 ° or more, so that a part of the equipment used for CAG (cardiac catheter examination) becomes a branching part. There is no inconvenience that it is difficult to enter.

  Further, in the angle setting as described above, the bent portion of the tube hole 15 of the second tube portion 13 becomes smooth because the second tube portion 13 is formed to be curved, and the turbulent flow of the liquid agent in the bent portion. It becomes difficult to occur. For this reason, the resistance in the said bending part is reduced and the supply pressure at the time of supplying a liquid agent can be reduced. In particular, when supplying a contrast agent whose viscosity has been increased by increasing the concentration by hand using a syringe or the like, it is necessary to reduce the supply pressure. According to this configuration, the above-described effects can be achieved. We can meet such requests. It is also assumed that blood pressure is measured via the Y connector 10, and in this case, by reducing the resistance at the bent portion as described above, pressure loss is reduced, and blood pressure can be measured favorably. it can.

  Next, the use of the Y connector 10 described above will be briefly described.

  An introduction member such as a catheter or a guide wire is inserted into the inner hole 51 of the opener 42 from the proximal end side of the Y connector 10 and penetrates the slit of the hemostasis valve 36. In this case, since the hemostasis valve 36 is closed, the hemostasis valve 36 is in close contact with the outer surface of the introduction member, and the introduction member and the insertion hole (specifically, the pusher hole 32 of the pusher 31). ) Is closed. Therefore, the inflow of blood to the proximal end side of the Y connector 10 from the hemostasis valve 36 is suppressed. The introduction member penetrating the slit of the hemostatic valve 36 passes through the tube hole 14 of the first tube portion 12 and is introduced into the guiding catheter attached to the rotator 18.

  Further, when air is mixed into the distal end side of the hemostasis valve 36 during the introduction operation of the introduction member or when a complicated operation is required temporarily, hemostasis is performed by pressing the opener 42. Even if the valve 36 is opened and the pressing operation of the opener 42 is stopped, the opened state is naturally maintained. When the air venting or complicated operation is completed, the hemostatic valve 36 is automatically closed by pressing the opener 42 again.

  Thereafter, when the introduction member reaches the treatment target position, the screw 25 is rotated. Thereby, the fixed valve 23 is in a compressed state, and the introduction member is detained so as not to deviate from the position. When the indwelling is completed, appropriate treatment is performed. In the treatment, a device such as a liquid supply device is connected to the second tube portion 13 of the connector body 11 to supply a liquid agent such as a contrast medium. The supplied liquid agent enters the guiding catheter through the tube hole 14 of the first tube section 12, and is administered to the treatment target position. In addition, when changing the indwelling position, and also when extracting the introduction member after completion of the treatment, the same operation as described above or the reverse operation can be performed.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  The opener 42 and the rotating part 43 are integrally provided as an opening / closing means, and when the opener 42 is pressed to the open position, the rotating part 43 rotates and the second protrusion 68 as the held portion serves as a cover body as the holding means. 41, the open state of the hemostatic valve 36 is naturally maintained. Therefore, in order to maintain the open state of the hemostasis valve 36, it is not necessary to hold the opener 42 in the open position by hand. Further, it is only necessary to push the opener 42 toward the tip of the Y connector 10, and no other special operation is required to hold the opener 42 in the open position. Therefore, the operability when opening the hemostatic valve 36 is improved.

  A helical spring 72 is provided between the rotating component 43 and the screw 25. Further, when the opener 42 held at the open position is pressed toward the tip of the Y connector 10, the rotating component 43 rotates and the state where the second protrusion 68 is held by the inclined surface 81 is released. I made it. That is, when the opener 42 held in the open position is pressed toward the tip of the Y connector 10, the opener 42 naturally moves to the closed position. Therefore, when the hemostatic valve 36 is closed again, it is only necessary to press the opener 42, and it is not necessary to move the opener 42 to the closed position by hand. Therefore, the operability when closing the hemostasis valve 36 is improved.

  In particular, as described above, the opener 42 may be pressed toward the tip of the Y connector 10 in both the case where the hemostatic valve 36 is opened and the case where the hemostatic valve 36 is closed again. The opening / closing operation of the hemostatic valve 36 is unified, and the operability is improved.

  The rotating component 43 is rotated to the holding rotation position and the non-holding rotation position by the biasing force of the helical spring 72. That is, the helical spring 72 that urges the opener 42 toward the closed position is also used as a means for rotating the rotating component 43, and the number of members can be reduced. Furthermore, the function of holding the second protrusion 68 of the rotating component 43 is provided in the cover body 41 that houses the helical spring 72 and the like. That is, the cover body 41 that accommodates the helical spring 72 and the like has a function as a holding means, and the number of members is larger than a configuration in which the function of accommodating the helical spring 72 and the function as the holding means are provided separately. Reduction can be achieved.

  The rotating component 43 can be integrally moved in the axial direction with respect to the opener 42, and is assembled so that the rotational movement of the rotating component 43 is not transmitted to the opener 42. Thus, in the configuration in which the opener 42 is naturally held in the open position by the rotation of the rotating component 43, the opener 42 that opens and closes the hemostasis valve 36 only moves in the axial direction and does not rotate. Therefore, when the hemostasis valve 36 is opened and closed, the rotational movement of the rotary component 43 is prevented from being transmitted to the introduction member such as a catheter passing through the inner hole 51 of the opener 42, and the introduction operation of the introduction member is affected. Thus, the operability when opening and closing the hemostasis valve 36 is improved.

  The rotating component 43 and the helical spring 72 were provided on the base end side with respect to the hemostatic valve 36 and in the outer region of the inner cylinder portion 52 as a penetrating portion. When the hemostasis valve 36 is in an open state, the hemostasis valve 36 is in close contact with the outer surface of the inner cylindrical portion 52, and blood inflow into the region where the rotating component 43 and the helical spring 72 are provided is suppressed. It was to so. With this configuration, it is possible to prevent blood from adhering to the rotating component 43 and the helical spring 72 when the hemostasis valve 36 is opened. Since blood coagulates in a relatively short time, if blood adheres to the rotating component 43 or the helical spring 72, there is a possibility that the hemostasis valve 36 cannot be opened and closed properly during treatment. On the other hand, by suppressing the blood from adhering to the rotating component 43 and the helical spring 72 as described above, the opening and closing operation of the hemostasis valve 36 is good even if the treatment requires a long time. State is maintained.

(Second Embodiment)
In the present embodiment, the configuration of the opening / closing unit is different from that of the first embodiment. Therefore, the different configuration will be described below. 7 and 8 are enlarged longitudinal sectional views showing the periphery of the opening / closing unit 100. FIG. 7 and 8, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  The opening / closing unit 100 includes a cover body 41, a pressing member 101, and a rotary opener 102 as main components. That is, instead of the opener 42 and the rotating component 43 in the first embodiment, a pressing member 101 and a rotating opener 102 are provided.

  The pressing member 101 has the same form as the outer tube portion 54 of the opener 42 in the first embodiment, and a flange body 71 is attached to an end portion protruding outward from the cover body 41. The rotary opener 102 has a form in which the inner cylindrical portion 52 of the opener 42 and the rotary component 43 in the first embodiment are combined. That is, the pressing member 101 only has a function as a part to be pressed, and the rotary opener 102 is used to naturally maintain the function for opening and closing the hemostasis valve 36 and the opening state of the hemostasis valve 36. It has a function. The pressing member 101 and the rotary opener 102 are not integrated with the detachment preventing means such as the C-type washer 70 in the first embodiment provided therebetween.

  However, the pressing member 101 is provided with the first protrusion 55 in the first embodiment, and the rotary opener 102 is provided with the second protrusion 68 in the first embodiment. Further, a helical spring 72 is provided in a compressed state between the rotary opener 102 and the screw 25. Therefore, when both the first protrusion 55 and the second protrusion 68 enter the slide groove 47 of the cover body 41, the pressing member 101 and the rotary opener 102 slide integrally. On the other hand, when the pressing member 101 is pressed and the rotary opener 102 is held at the position where the hemostatic valve 36 is opened as shown in FIG. 8, only the pressing member 101 can be slid.

  According to the above configuration, when the pressing member 101 is pressed and the rotary opener 102 is moved to the open position, the rotary opener 102 rotates and, like the rotary component 43 in the first embodiment, the rotary opener. 102 is held on an inclined surface 81 provided on the cover body 41. In addition, when the pressing member 101 is pressed again in the holding state of the rotary opener 102, the holding state of the rotary opener 102 is released as in the first embodiment. Then, the rotating opener 102 slides toward the proximal end of the Y connector 10 together with the pressing member 101 by the biasing force of the helical spring 72, and the hemostasis valve 36 automatically returns to the closed state. That is, even in the configuration according to the present embodiment, the operability when opening and closing the hemostasis valve 36 can be improved as in the first embodiment. In addition, the same effects as those of the first embodiment are obtained.

(Other embodiments)
The present invention is not limited to the contents described in the above embodiments, and may be implemented as follows, for example.

  In each of the above embodiments, when the opening / closing means (opener 42, rotating component 43, pressing member 101, rotating opener 102) held in the open position is returned to the closed position, the opening / closing means is pressed in the same manner as in the opening operation. Instead of this, instead of the opening and closing means, a return operating means (or a holding releasing means for releasing the holding state) operated to return the opening and closing means to the closed position is provided. Also good.

  Specifically, the configuration of the first embodiment will be described as an example. Instead of integrally forming the inclined surface 81 on the cover body 41, a holder separate from the cover body 41 is provided on the cover body 41. . The holder is provided on the peripheral wall of the cover body 41 so as to penetrate the cover body 41 inward and outward. Further, when the opener 42 is pressed to the open position, the second protrusion 68 of the rotating component 43 is locked to a portion protruding inside the cover body 41 in the holder, and the cover body of the holder 41 The locking of the second protrusion 68 is released by a pulling operation or a pressing operation of a portion protruding outward. Even in this configuration, by pressing the opener 42 and moving it to the open position, the opener 42 is naturally held at the open position, and the operability when opening the hemostasis valve is improved. Further, by performing a pulling operation or a pressing operation on the holder, the opener 42 automatically returns to the closed position by the urging force of the helical spring 72, thereby improving the operability when closing the hemostasis valve. It is done.

  In each of the above embodiments, the rotating unit (the rotating component 43, the rotating opener 102) rotates in a fixed direction, and thus rotates to the holding rotation position and the non-holding rotation position. In the case of moving from the holding rotation position to the non-holding rotation position with respect to the rotation direction of the rotating part when moving from the non-holding rotation position to the holding rotation position by appropriately changing the shape of the inclined surface 81 or the like in the form It is good also as a structure which makes the rotation direction of a rotation part reverse. Further, the holding means is not limited to the inclined surface 81 and may be constituted by a holding hole (holding groove), for example.

  In the first embodiment, the C-type washer 70 is provided as a blocking means for preventing the opener 42 and the rotating component 43 from being separated from each other. However, the present invention is not limited to this, and the rotating component 43 relative to the opener 42 is not limited thereto. If at least the rotating component 43 is held on the inclined surface 81 of the cover body 41 while allowing the rotation, if the movement of the opener 42 to the closing position along the axial direction is to be blocked, the configuration of the blocking means Is optional. For example, instead of the C-type washer 70, an annular stepped portion protruding inwardly is provided on the outer cylindrical portion 54 of the opener 42, and the rotating component 43 is covered by the contact between the stepped portion and the stepped portion 67 of the rotating component 43. When held on the inclined surface 81 of the body 41, the movement of the opener 42 to the closed position along the axial direction may be prevented.

  The number of the slide grooves 47 and the projections 55 and 68 is not limited to those in the above embodiments, and the embodiments described above can be used as long as the slide grooves 47 and the projections 55 and 68 correspond to each other. It may be more or less.

  The present invention is applicable to connectors having hemostasis valves other than Y connectors. For example, the present invention can be applied to a connector having a hemostasis valve that does not include the second tube portion 13, and further to a connector having a hemostasis valve that includes a plurality of first tube portions 12 and second tube portions 13. Applicable. Further, it is applicable not only to a connector having only one hemostasis valve 36 but also to a connector having a plurality of hemostasis valves. Moreover, it is applicable also to the connector which has the hemostatic valve which does not comprise the fixed valve 23. FIG.

Claims (12)

A tubular substrate through which an introduction member such as a catheter is inserted;
A hemostasis valve that closes a gap between the peripheral wall of the tube hole of the tubular base body and the introduction member;
The introduction member has an insertion hole through which the insertion member is inserted into the tube hole from the proximal end side of the tubular base so that the insertion hole is on the same axis as the tube hole. Opening and closing means movable along the axial direction to respective positions of a closed position that is not opened and an open position that penetrates and opens the hemostasis valve;
Biasing means for biasing the opening / closing means toward the closed position;
Based on the fact that the opening / closing means moves along the axial direction against the urging force of the urging means and reaches the opening position, the opening / closing means is held at the opening position, and based on a holding release operation. And a holding means for releasing the holding state. A connector having a hemostasis valve.   The holding means holds the opening / closing means in the open position based on the fact that the opening / closing means has moved from the closed position toward the distal end side of the tubular base and has reached the open position. 2. The connector having a hemostasis valve according to claim 1, wherein the holding state is released based on movement of the opened / closed means toward the distal end side.   The said opening-and-closing means protrudes outward from the base end side of the said tubular base | substrate, The protrusion part is made into the operation part at the time of opening and closing the said hemostatic valve, The Claim 1 or 2 characterized by the above-mentioned. A connector having a hemostasis valve.   4. The connector having a hemostasis valve according to claim 3, wherein the protruding portion has a flange portion that is continuously or discontinuously annular at the protruding end.   When the opening / closing means is in the open position, the opening / closing means penetrates the hemostasis valve and opens the hemostasis valve, and is rotatable about the axis as a rotation axis and is movable in the axial direction together with the penetration. A rotating part that is provided and moves to the holding rotation position when it moves from the closed position to the release position, is held by the holding means, and is rotated to the non-holding rotation position and released from the holding state based on the holding release operation. A connector having a hemostasis valve according to any one of claims 1 to 4.   6. The connector having a hemostasis valve according to claim 5, wherein the rotating portion rotates to the holding rotation position and the non-holding rotation position based on an urging force of the urging means. The penetrating part and the rotating part are provided separately,
The penetrating portion extends in the axial direction and has the insertion hole, the rotating portion has a cylindrical shape, and the penetrating portion is inserted into the cylindrical shape,
The rotating portion is further movable integrally with the penetrating portion in the axial direction, and is assembled so that the rotational movement of the rotating portion is not transmitted to the penetrating portion. Or the connector which has the hemostatic valve of 6.   Between the penetrating part and the rotating part, there is provided blocking means for preventing movement of the penetrating part to the closed position when at least the rotating part is held by the holding means. A connector having a hemostasis valve according to claim 7. The rotating portion has a held portion held by the holding means at the holding rotation position on the outer surface side thereof,
The penetrating portion extends to the distal end side of the tubular base with respect to the rotating portion, and when in the open position, the opening of the hemostasis valve is in close contact with the peripheral surface of the penetrating portion. 9. The connector having a hemostasis valve according to claim 5, wherein inflow of blood to the side is suppressed.   10. The hemostatic valve according to claim 1, wherein the biasing means is provided in a region that is proximal to the hemostasis valve and in which inflow of blood is suppressed. connector. The opening / closing means has a cylindrical shape extending along the axial direction, and the urging means is provided on the outer side of the opening / closing means on the proximal side with respect to the hemostasis valve,
11. When in the open position, the opening of the hemostasis valve is in close contact with the peripheral surface of the opening / closing means, and the inflow of blood to the biasing means side is suppressed. A connector having a hemostasis valve.   11. The tubular base has an accommodating cylinder part that accommodates the urging means on a proximal end side with respect to the hemostasis valve, and the holding means is integrally formed with the accommodating cylinder part. Or a connector having the hemostasis valve according to 11;

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