CN114768053A

CN114768053A - Y-shaped connector for coronary heart disease interventional operation

Info

Publication number: CN114768053A
Application number: CN202210367227.4A
Authority: CN
Inventors: 杜胤龙; 吴淳; 朴福实
Original assignee: Peking University Shenzhen Hospital
Current assignee: Peking University Shenzhen Hospital
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-22
Anticipated expiration: 2042-04-08
Also published as: CN114768053B

Abstract

The invention discloses a Y-shaped connector for coronary heart disease interventional operation, which comprises: the connector body is provided with a locking joint which is suitable for guiding the penetration of a guide wire; the eccentric support comprises a lantern ring and an extension plate, the lantern ring comprises a first semi-ring and a second semi-ring, one ends of the first semi-ring and the second semi-ring are flexibly connected, the other ends of the first semi-ring and the second semi-ring are connected in a buckling mode, a sleeving hole is defined between the first semi-ring and the second semi-ring, and the sleeving hole is matched with the locking joint; the extension plate is fixedly connected with one of the first half ring and the second half ring and extends along a plane parallel to the axis of the locking joint on one side of the axis of the locking joint; the clamping piece is fixed on the extension plate and far away from the locking joint and used for clamping and fixing the part of the guide wire exposed outside the locking joint. According to the Y-shaped connector for coronary heart disease interventional operation, the guide wire can be clamped by the clamping piece, so that the operation can be performed more smoothly and reliably.

Description

Y-shaped connector for coronary heart disease interventional operation

Technical Field

The invention relates to a medical surgical instrument, in particular to a Y-shaped connector for coronary heart disease interventional operation.

Background

Coronary Intervention (PCI) refers to a treatment method for improving the perfusion of the blood in the myocardium by opening up the lumen of a narrow or even occluded coronary artery through a cardiac catheter technique. In the interventional therapy process, for example, in the cardiac stent operation, it is usually necessary to connect a Y-connector with a guide tube, and an interventional device such as a balloon or a stent needs to be guided into the guide tube through the guide wire, but in the guiding process, the guide wire needs to be pressed by fingers, and if the guide wire is not pressed or pressed, the guide wire can be brought into or out of the guide tube due to friction and the like, thereby easily causing problems such as perforation of blood vessels and coronary arteries, or re-threading of the guide wire.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a Y-shaped connector for coronary heart disease interventional operation.

To achieve the above object, a Y-connector for coronary heart disease interventional surgery according to an embodiment of the present invention includes:

a connector body having a locking nipple adapted to guide penetration of a guidewire;

an eccentric support; the eccentric support comprises a lantern ring and an extension plate, the lantern ring comprises a first semi-ring and a second semi-ring, one ends of the first semi-ring and the second semi-ring are flexibly connected, the other ends of the first semi-ring and the second semi-ring are connected in a buckling mode, a sleeving hole is defined between the first semi-ring and the second semi-ring, and the sleeving hole is matched with the locking joint, so that the lantern ring is sleeved on the locking joint through the sleeving hole; the extension plate is fixedly connected with one of the first half ring and the second half ring and extends along a plane parallel to the axis of the locking joint on one side of the axis of the locking joint;

the clamping part is fixed on the extension plate and far away from the locking joint for clamping and fixing the guide wire is exposed at the part outside the locking joint.

According to the Y-shaped connector for coronary heart disease interventional surgery provided by the embodiment of the invention, the lantern ring of the eccentric bracket is arranged on the locking joint, the clamping piece is fixed on the extension plate of the eccentric bracket, the guide wire can be clamped by the clamping piece in the using process without being pressed by fingers, so that the guide wire is reliably fixed, the fingers of medical personnel are liberated, other operations are convenient to perform, and the operation is more smoothly and reliably performed. In addition, the first semi-ring and the second semi-ring of the lantern ring adopt a buckle connection mode, can be connected with the connector body in a detachable mode, and the split type structural design is convenient to use and does not need to improve the structure of the connector body.

In addition, the Y-shaped connector for coronary heart disease interventional operation according to the above embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, the other end of the first half ring is provided with a spring plate, and the spring plate is provided with a tooth portion;

the other end of the second half ring is provided with a clamping seat, the clamping seat is provided with a socket into which the elastic sheet can be inserted, and the side wall of the socket is provided with a tooth groove matched with the tooth part after the elastic sheet is inserted;

wherein the elastic sheet can be pressed to deform towards the side of the side wall far away from the socket so as to release the matching of the tooth part and the tooth groove.

According to one embodiment of the invention, the sleeve is pivotable about an axis of the locking joint.

According to one embodiment of the invention, the locking joint comprises a pipe body and a locking cap, wherein an annular blocking platform is arranged on the pipe body, and the locking cap is arranged at the end part of the pipe body and is opposite to the annular blocking platform;

the lantern ring cover is established on the body and be located the annular keep off the platform with between the locking cap, in order to pass through the annular keeps off the platform restriction the lantern ring removes.

According to one embodiment of the invention, the outer wall of the second half ring is radially bulged to form a side edge part, and the side edge part is provided with a first edge;

the extension plate is formed into a trapezoid, the small end of the extension plate is fixedly connected with the first edge, and the large end of the extension plate extends towards one end far away from the lantern ring.

According to an embodiment of the invention, the side edge part further comprises a second edge and a third edge, the second edge and the third edge are respectively positioned at two sides of the axis of the lantern ring and are perpendicular to the first edge;

the second edge extends along the axial direction of the lantern ring to form a first finger pressing part suitable for being held by fingers, the third edge extends along the axial direction of the lantern ring to form a second finger pressing part suitable for being held by fingers, and the second finger pressing part is opposite to the first finger pressing part.

According to one embodiment of the invention, the clamp comprises:

the sliding chuck is arranged on the extension plate and can slide between a clamping position and a releasing position;

the elastic piece is arranged between the sliding chuck and the extension plate and used for providing elastic acting force for forcing the sliding chuck to move to the clamping position;

the extension plate is provided with a positioning column, when the sliding chuck is located at the clamping position, the elastic acting force of the elastic piece forces the sliding chuck to abut against the positioning column, and when the sliding chuck slides to the releasing position, the sliding chuck is far away from the positioning column.

According to one embodiment of the invention, the number of the positioning columns is two, and the two positioning columns are oppositely arranged on one side of the axis of the locking joint; the sliding chuck is triangular and is provided with two symmetrical inclined planes;

when the sliding chuck is located at the clamping position, the sliding chuck is located between the two positioning columns, one of the two inclined planes abuts against one of the two positioning columns, and the other of the two inclined planes abuts against the other of the two positioning columns.

According to one embodiment of the invention, the sliding cartridge has a pull handle for user manipulation to switch the sliding cartridge from the clamping position to the release position.

According to one embodiment of the invention, the bottom of the sliding chuck is provided with a sliding column, and the extension plate is provided with a sliding groove in sliding fit with the sliding column;

the extension board with the guide bar is worn to be equipped with in the activity between the slip chuck, the elastic component is compression spring, the compression spring cover is established on the guide bar, just compression spring's one end with the slip chuck offsets, compression spring's the other end with the extension board offsets.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a Y-shaped connector for coronary heart disease interventional surgery according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a Y-shaped connector (with a first half ring opened) for coronary heart disease interventional operation according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a Y-shaped connector (in use) for coronary heart disease interventional surgery according to an embodiment of the present invention;

FIG. 4 is an exploded view of a Y-connector for coronary heart disease interventional surgery in accordance with an embodiment of the present invention;

fig. 5 is a schematic diagram of a partial structure of a Y-shaped connector for coronary heart disease interventional surgery according to an embodiment of the invention.

Reference numerals:

10. a connector body;

101. locking the joint;

1011. a pipe body;

1012. a locking cap;

1013. an annular baffle table;

102. a guide joint;

103. an injection fitting;

20. an eccentric support;

201. a collar;

2011. a first half ring;

2012. a second half ring;

2013. a spring plate;

2013a, a tooth part;

2014. a side edge portion;

2015. a first finger-pressure portion;

2016. a second finger-pressing portion;

2017. a card holder;

h20, a socket hole;

h21, socket;

202. a stretching plate;

2021. a positioning column;

s20, cutting a noodle;

2022. a resisting part;

30. a sliding chuck;

301. a handle;

s30, inclined plane;

302. a sliding post;

31. an elastic member;

32. a guide bar;

40. a guidewire.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only and are not to be construed as limiting the present invention, and all other embodiments that can be made by one skilled in the art without inventive effort based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The Y-connector for coronary heart disease interventional surgery according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, a Y-connector for coronary heart disease interventional surgery according to an embodiment of the present invention includes a connector body 10, an eccentric bracket 20 and a clamping member.

In particular, the connector body 10 has a locking tab 101, said locking tab 101 being adapted to guide the penetration of the guide wire 40. The connector body 10 further has a guide connector 102 and an injection connector 103, the guide connector 102 is used for connecting a guide tube, and the guide tube can be inserted into the patient through the puncture needle. The injection connector 103 may be connected to a syringe for injection of heparin, saline, or the like. It will be appreciated that the connector body 10 is identical to a prior art Y-connector and the construction thereof will not be described in detail herein.

The eccentric bracket 20 comprises a collar 201 and a stretching plate 202, wherein the collar 201 comprises a first half ring 2011 and a second half ring 2012, one end of the first half ring 2011 is flexibly connected with one end of the second half ring 2012, the other end of the first half ring 2011 is connected with the other end of the second half ring 2012 in a buckling manner, and a sleeving hole H20 is defined between the first half ring 2011 and the second half ring 2012. The sleeve hole H20 is adapted to the lock joint 101, so that the sleeve ring 201 is sleeved on the lock joint 101 through the sleeve hole H20. An extension plate 202 is fixedly connected to one of the first half-ring 2011 and the second half-ring 2012 and extends along a plane parallel to the axis of the locking joint 101 on one side of the axis of the locking joint 101.

The clamping member is fixed on the extension plate 202 and away from the locking joint 101, so as to clamp and fix the portion of the guide wire 40 exposed outside the locking joint 101.

That is to say, the first half ring 2011 and the second half ring 2012 form the collar 201, and the first half ring 2011 and the second half ring 2012 can be relatively turned over, so that the other end of the first half ring 2011 and the other end of the second half ring 2012 can be connected or separated in a snap-fit manner, and thus, the first half ring 2011 and the second half ring 2012 can be opened or closed, a circular collar 201 can be formed when the first half ring 2011 and the second half ring 2012 are closed, and the collar 201 defines the sleeving hole H20 therein. This diameter size and the locking joint 101 adaptation of cup joint hole H20, when using, can with first semi-ring 2011 and the cladding of second semi-ring 2012 outside locking joint 101, again with the other end buckle connection of first semi-ring 2011 and second semi-ring 2012, so, can assemble eccentric support 20 on connector body 10, this kind of assembly methods, swift convenient to it is reliable.

And the extension plate 202 is connected to one of the first half-ring 2011 and the second half-ring 2012, and the clamp is fixed to the extension plate 202, and the guide wire 40 can be fixed by the clamp in the operation.

The Y-connector of the related art has no structure for fixing the guide wire 40, and requires a medical worker to press the guide wire 40 with fingers during a surgical procedure. In the present application, the eccentric holder 20 is additionally provided to the connector body 10, and the clamping member is provided to the eccentric holder 20. In the operation process, after the guide wire 40 penetrates from the locking joint 101, the part of the guide wire 40 exposed outside the locking joint 101 can be clamped and fixed by the clamping piece by medical staff, so that when the medical staff utilizes the guide wire 40 to guide an interventional device to enter the guide tube in the operation, the guide wire 40 can be kept still, the interventional device can be conveniently and smoothly sent into the guide tube, and then the interventional device enters the body of a patient from the guide tube. In addition, a clamping piece clamping mode is adopted, operation is convenient, and convenience and efficiency of an operation are improved.

According to the Y-shaped connector for coronary heart disease interventional surgery provided by the embodiment of the invention, the lantern ring 201 of the eccentric support 20 is arranged on the locking joint 101, the clamping piece is fixed on the extension plate 202 of the eccentric support 20, the guide wire 40 can be clamped by the clamping piece in the using process without being pressed by fingers, so that the guide wire 40 is reliably fixed, the fingers of medical personnel are liberated, other operations are convenient to perform, and the operation is more smoothly and reliably performed. In addition, the first half-ring 2011 and the second half-ring 2012 of the collar 201 are connected in a buckling manner, so that the detachable connection between the first half-ring 2011 and the second half-ring 2012 of the collar 201 and the connector body 10 can be realized, and the split structure design is convenient to apply and does not need to improve the structure of the connector body 10.

Referring to fig. 2 and 4, in an embodiment of the present invention, the other end of the first half-ring 2011 is provided with a spring 2013, the spring 2013 is provided with a tooth 2013a, the other end of the second half-ring 2012 is provided with a socket 2017, the socket 2017 is provided with a socket H21 into which the spring 2013 can be inserted, and a side wall of the socket H21 is provided with a tooth groove which is matched with the tooth 2013a after the spring 2013 is inserted. The resilient pieces 2013 can be deformed by being pressed toward the side of the side wall away from the socket H21 to release the teeth 2013a from being fitted into the notches.

That is, the spring 2013 can be closed by rotating the first half-ring 2011 and inserted into the socket H21 of the socket 2017 on the second half-ring 2012, and the spring 2013 is provided with the tooth 2013a, and the side wall of the socket H21 is provided with the tooth socket, so when the spring 2013 is inserted into the socket H21, the tooth 2013a on the spring 2013 is engaged with the tooth socket in the socket H21, so as to realize the snap connection between the other end of the first half-ring 2011 and the other end of the second half-ring, and when the first half-ring 2011 needs to be opened, the spring 2013 can be pressed to the side of the side wall far away from the socket H21, so that the spring 2013 is deformed to the side of the side wall far away from the socket H21, the tooth 2013a on the spring 2013 can be separated from the tooth socket in the socket H21, and the first half-ring 2011 can be opened by rotating the first half-ring 2011 reversely, thus, the above structure is convenient for the snap connection between the first half-ring 2011 and the second half-ring 2012, the connection is reliable, and the opening operation is also convenient.

Advantageously, the collar 201 is pivotable about the axis of said lockjoint 101, i.e. the diameter of the socket hole H20 is slightly larger than the outer diameter of the lockjoint 101, so that the collar 201 can pivot about the axis of the lockjoint 101,

because the guide connector 102 is connected with the puncture needle through the guide tube in the operation, the injection connector 103 is connected with the injector, in the operation, the medical staff needs to hold at least one part of the Y-shaped connector, generally, when the medical staff needs to hold the Y-shaped connector, the connector body 10 is positioned in the space formed by the palm of the medical staff, therefore, the lantern ring 201 and the locking connector 101 adopt the pivoting connection mode, and when the holding operation is ensured, the connector body 10 can be adaptively rotated and adjusted to a proper holding position, and the injection connector 103 is ensured not to influence the holding. Correspondingly, the eccentric bracket 20 can be rotated to a proper angle as required, so that the medical staff can conveniently perform the operation, and the convenience of the operation can be greatly improved.

Referring to fig. 1 and 4, in one embodiment of the present invention, the locking joint 101 comprises a tube 1011 and a locking cap 1012, wherein the tube 1011 is provided with an annular stop 1013, and the locking cap 1012 is provided at the end of the tube 1011 opposite to the annular stop 1013. It will be appreciated that the locking cap 1012 may be of a push-type or a knob-type construction.

The collar 201 is sleeved on the pipe body 1011 and located between the annular stop 1013 and the locking cap 1012 so as to limit the movement of the collar 201 through the annular stop 1013.

In this embodiment, the annular stop 1013 is disposed on the tube 1011 opposite to the locking cap 1012, and the collar 201 is confined between the annular stop 1013 and the locking cap 1012 by the annular stop 1013, so that the collar 201 and the connector body 10 can be assembled reliably, and the collar is not easy to move axially during use, thereby facilitating the operation.

Referring to fig. 1, in one embodiment of the present invention, the outer wall of the second half ring 2012 is formed with a side edge portion 2014 protruded along the radial direction, and the side edge portion 2014 has a first edge.

The extension plate 202 is formed in a trapezoid shape, the small end of the extension plate 202 is fixedly connected with the first edge, and the large end of the extension plate 202 extends to an end far away from the collar 201.

That is, the collar 201 is connected to the extension plate 202 through the radially protruding side edge portion 2014, so that the extension plate 202 is located at one side of the collar 201 to form an eccentric arrangement, and thus, the operation is not disturbed during the operation of the medical staff.

Referring to fig. 1, 2 and 4, in an embodiment of the present invention, the side edge portion 2014 further includes a second edge and a third edge, which are respectively located at two sides of the axis of the collar 201 and perpendicular to the first edge. The second rim extends in the axial direction of the collar 201 to form a first finger portion 2015 adapted for finger gripping, and the third rim extends in the axial direction of the collar 201 to form a second finger portion 2016 adapted for finger gripping, the second finger portion 2016 being opposite to the first finger portion 2015.

That is to say, set up first finger-pressing portion 2015 and second finger-pressing portion 2016 respectively in the both sides of side edge portion 2014, in the operation, medical personnel can hold between fingers on first finger-pressing portion 2015 and second finger-pressing portion 2016 respectively, so, conveniently hold eccentric support 20 in the operation and operate, and this kind of operation of holding is very nimble convenient.

Referring to fig. 1 to 5, in some embodiments of the present invention, the clamping member includes a sliding clamp 30 and an elastic member 31, and the sliding clamp 30 is disposed on the extension plate 202 and is slidable between a clamping position and a releasing position. A resilient member 31 is disposed between the sliding clamp 30 and the extension plate 202 to provide a resilient force that urges the sliding clamp 30 toward the clamping position. The extending plate 202 is provided with a positioning post 2021, when the sliding chuck 30 is located at the clamping position, the elastic force of the elastic element 31 forces the sliding chuck 30 to abut against the positioning post 2021, and when the sliding chuck 30 slides to the releasing position, the sliding chuck 30 is away from the positioning post 2021.

That is, the clamping member mainly comprises the sliding clamp 30 and the elastic member 31, the sliding clamp 30 can slide on the extending plate 202, the positioning post 2021 is disposed on the extending plate 202, when the sliding clamp 30 slides to the releasing position, the sliding clamp 30 is away from the positioning post 2021, and in this state, the guide wire 40 can be placed between the positioning post 2021 and the sliding clamp 30. When the sliding chuck 30 slides from the releasing position to the clamping position, the elastic force of the elastic member 31 forces the sliding chuck 30 to abut against the positioning post 2021, so that the guide wire 40 can be pressed against the positioning post 2021 by the sliding chuck 30.

In an operation, a medical worker can manually slide the sliding chuck 30 from the clamping position to the release position, at this time, the elastic piece 31 is compressed, the sliding chuck 30 is far away from the positioning column 2021, then the guide wire 40 is placed between the sliding chuck 30 and the positioning column 2021, and then the sliding chuck 30 is loosened, so that the sliding chuck block is driven to reset to the clamping position under the elastic acting force of the elastic piece 31, the sliding chuck 30 can elastically abut against the positioning column 2021, and the guide wire 40 is pressed against the positioning column 2021.

Advantageously, two positioning columns 2021 are provided, and the two positioning columns 2021 are oppositely arranged on one side of the axis of the locking joint 101; the sliding clamp 30 is triangular and has two symmetrical inclined surfaces S30.

When the sliding chuck 30 is located at the clamping position, the sliding chuck 30 is located between the two positioning posts 2021, one of the two inclined surfaces S30 abuts against one of the two positioning posts 2021, and the other of the two inclined surfaces S30 abuts against the other of the two positioning posts 2021.

That is to say, when the sliding chuck 30 is restored to the clamping position from the releasing position, the front end of the sliding chuck 30 is just inserted between the two positioning posts 2021, and the two inclined surfaces S30 are respectively elastically abutted against the two positioning posts 2021, so that the structure can ensure that the two sides of the sliding chuck 30 are stressed, the positioning is accurate, and the pressing action on the guide wire 40 is more reliable.

Advantageously, the positioning post 2021 has a cut surface S20, and the inclined surface S30 of the sliding chuck 30 elastically abuts against the cut surface S20 of the positioning post 2021, so as to increase the contact area and improve the clamping effect on the guide wire 40.

Referring to fig. 1 to 4, in an embodiment of the present invention, the sliding clamp 30 has a handle 301 for a user to operate to switch the sliding clamp 30 from the clamping position to the releasing position, so that a medical staff can drive the sliding clamp 30 to slide from the clamping position to the releasing position through the handle 301 during a use process, which is convenient and labor-saving.

Referring to fig. 5, in one embodiment of the present invention, the sliding clip 30 is provided with a sliding column 302 at the bottom thereof, and the extension plate 202 is provided with a sliding slot slidably engaged with the sliding column 302.

Extend board 202 with the guide bar 32 is worn to be equipped with in the activity between the slip chuck 30, elastic component 31 is compression spring, the compression spring cover is established on the guide bar 32, just compression spring's one end with slip chuck 30 offsets, compression spring's the other end with extend board 202 offsets. In the example of fig. 1, the bottom of the extending plate 202 is provided with a stopping portion 2022, the guide rod 32 is inserted between the stopping portion 2022 and the lower end of one of the sliding columns 302, one end of the compression spring abuts against the stopping portion 2022, and the other end abuts against the lower end of the corresponding sliding column 302.

In this embodiment, the sliding column 302 and the sliding groove are matched to ensure that the sliding chuck 30 slides reliably. The compression spring is sleeved on the guide rod 32, when the sliding chuck 30 slides, the sliding column 302 compresses the compression spring, the guide action of the guide rod 32 enables the sliding chuck 30 to be quickly reset under the elastic acting force, and the clamping reliability of the clamping piece is further ensured.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A coronary heart disease intervenes operation and uses Y connector, its characterized in that includes:

a connector body having a locking nipple adapted to guide the penetration of a guidewire;

the holder, the holder is fixed extend on the board and keep away from locking joint for the centre gripping is fixed the seal wire exposes in locking joint outside part.

2. The coronary heart disease interventional operation Y-connector of claim 1, wherein the other end of the first half ring is provided with a spring plate, and the spring plate is provided with a tooth portion;

the other end of the second semi-ring is provided with a clamping seat, the clamping seat is provided with a socket into which the elastic sheet can be inserted, and the side wall of the socket is provided with a tooth groove matched with the tooth part after the elastic sheet is inserted;

3. The coronary intervention Y-connector of claim 1, wherein the sleeve is pivotable about an axis of the locking joint.

4. The Y-shaped connector for coronary heart disease interventional surgery as defined in claim 1, wherein the locking joint comprises a tube body and a locking cap, the tube body is provided with an annular blocking platform, and the locking cap is arranged at the end of the tube body and is opposite to the annular blocking platform;

5. The Y-shaped connector for coronary heart disease interventional surgery as defined in claim 1, wherein the outer wall of the second half ring is radially bulged to form a side edge portion, and the side edge portion has a first edge;

6. The coronary heart disease interventional surgical Y-connector of claim 5, wherein the side edge further comprises a second edge and a third edge, the second edge and the third edge are respectively located on two sides of the axis of the collar and are perpendicular to the first edge;

7. The Y-connector for coronary heart disease interventional surgery of claim 1, wherein the holder comprises:

an elastic member disposed between the sliding collet and the extending plate for providing an elastic force for forcing the sliding collet to move to the clamping position;

8. The coronary heart disease interventional surgery Y-shaped connector according to claim 7, wherein the number of the positioning columns is two, and the two positioning columns are oppositely arranged on one side of the axis of the locking joint; the sliding chuck is triangular and is provided with two symmetrical inclined planes;

9. The Y-connector for coronary heart disease intervention according to claim 7, wherein the sliding cartridge has a pull handle for user manipulation to switch the sliding cartridge from the clamping position to the release position.

10. The Y-shaped connector for coronary heart disease interventional surgery as defined in claim 7, wherein the sliding chuck is provided with a sliding column at the bottom thereof, and the extension plate is provided with a sliding groove in sliding fit with the sliding column;