CN206198472U - A kind of push type Y-connector - Google Patents

Abstract

The utility model is related to a kind of push type Y-connector, including Y-valve body, elastic Y-valve cap assembly, Y-valve adapter assembly, Y-valve body includes Y-valve body entrance point, Y-valve body extension, Y-valve body interface end, Y-valve body extension outside is provided with injection junction block, elastic Y-valve cap assembly includes Y-valve cap, rubber plug valve wedge, rubber plug valve, Y-valve cap is cylinder cap structure, the center of top of cylinder cap structure is provided with conducting tubular construction, rubber plug valve wedge is the circular tube structure that shaft section is assumed a " convex " shape, conducting tubular construction is plugged in the top small end cavity of rubber plug valve wedge and forms slidably socket join structure, Y-valve spring is slidably arranged with the outside of socket join structure and forms slidably elastic socket join structure, envelope is provided with the rubber plug valve between Y-valve body entrance point and rubber plug valve wedge, Y-valve body interface end is arranged with Y-valve adapter assembly.The utility model using can the conducting tubular construction of elastic reset open and close rubber plug valve, with easy to operate, the characteristics of service aisle is succinct unobstructed.

Description

A push-type Y-type connector

technical field

The utility model relates to an interventional medical device, in particular to a Y-shaped connector used for PTCA operation, which belongs to the field of medical devices.

Background technique

Intervention therapy is to open a small channel with a diameter of a few millimeters on the skin and blood vessels or through the original pipeline of the human body under the guidance of imaging medicine, and insert a special catheter or instrument into the lesion, for example, the catheter reaches the heart through the blood vessel, etc. The method of performing diagnostic imaging, treatment or tissue collection is an emerging treatment method between surgery and medical treatment. Percutaneous coronary angioplasty (PCTA) is a basic coronary heart disease treatment technique, that is, a small opening is opened on the blood vessel, and a balloon dilation catheter is inserted into the narrowing of the coronary artery by percutaneous puncture of the artery. Under the guidance and monitoring of the patient, the dilute contrast agent is used to inflate the balloon to expand the coronary artery stenosis or bypass graft stenosis, increase myocardial blood flow, and improve myocardial perfusion. The push-type Y-type connector is mainly used in PTCA surgery and is a necessary appliance for interventional therapy. The role of the Y-connector is mainly to assist the introduction of contrast agents, guide wires or other medical devices in conjunction with balloon dilation catheters during interventional procedures, and to control blood backflow and provide fluid access to the interventional system when using guide catheters or dilation catheters. . The existing scheme of using threaded rotary extrusion to open and close the hemostatic valve is inconvenient to operate, takes a long time to operate, and requires operators to have a certain degree of operational proficiency.

Contents of the invention

The utility model discloses a new scheme of a push-type Y-shaped connector, which adopts an elastically resettable guide tube structure to open and close the rubber plug valve, and solves the problem of inconvenient operation in the existing scheme of opening and closing the hemostatic valve by thread rotation extrusion.

The utility model push-type Y-type connector includes a Y valve body, an elastic Y valve cap assembly, and a Y valve joint assembly. The interface end of the valve body, the inlet end of the Y valve body, the extension section of the Y valve body, and the interface end of the Y valve body are sequentially seamlessly connected to form the whole of the Y valve body. The injection joint pipe, the elastic Y valve cap assembly includes the Y valve cap, the rubber plug valve pressure seat, and the rubber plug valve. The internal extension of the guide tube structure, the rubber plug valve seat is a circular tube structure with a "convex" axial section, and the guide tube structure is inserted into the upper small end cavity of the rubber plug valve seat to form a slidable socket structure , the outer side of the slidable socket structure is provided with a Y valve spring to form a slidable elastic socket structure. The inlet end of the Y valve body extends into the Y valve cap and forms a sealed communication with the lower large end cavity of the rubber plug valve pressure seat. The Y valve The rubber plug valve is sealed between the inlet end of the body and the seat of the rubber plug valve. Press the Y valve cap to open or close the rubber plug valve through the free end of the guide pipe structure, and the Y valve body interface end is covered with a Y valve. A joint assembly, the Y valve body communicates with the guide conduit through the Y valve joint assembly.

The push-type Y-type connector of the utility model adopts an elastically resetable guide pipe structure to open and close the rubber plug valve, and has the characteristics of simple operation and simple and smooth working channel.

Description of drawings

Fig. 1 is a schematic diagram of the push-type Y-type connector of the present invention.

Fig. 2 is a schematic cross-sectional view of section A-A in Fig. 1 .

Fig. 3 is a schematic diagram of a rubber plug valve.

Fig. 4 is a schematic diagram of the internal structure of the Y valve cap.

Fig. 5 is a schematic diagram of the external partial structure of the valve pressure seat of the rubber plug.

Among them, 1 is the Y valve cap, 2 is the Y valve spring, 3 is the rubber plug valve pressure seat, 4 is the rubber plug valve, 5 is the Y valve body, 6 is the ring eaves of the Y valve collar, 7 is the Y valve PTFE gasket, 8 is a gasket pressing sleeve, 9 is an O-shaped silicone ring, 10 is a Luer male connector, 11 is a bump structure, and 12 is an elastic buckle structure.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1 and 2, schematic diagrams of the push-type Y-type connector of the present invention. The push-type Y-type connector includes a Y valve body, an elastic Y valve cap assembly, and a Y valve joint assembly. The Y valve body is a round pipe structure, and the Y valve body includes the Y valve body inlet port, the Y valve body extension section, and the Y valve body interface. Y valve body inlet end, Y valve body extension section, and Y valve body interface end are seamlessly connected in turn to form the whole of Y valve body. The outer side of the Y valve body extension section is provided with an injection joint that communicates with the inside of the Y valve body extension section. Pipe, elastic Y valve cap assembly includes Y valve cap, rubber plug valve pressure seat, rubber plug valve, Y valve cap is a cylindrical cap structure, and the top center of the cylindrical cap structure is provided with a shaft extending toward the inside of the Y valve cap along the axial direction. The guide tube structure, the rubber plug valve seat is a circular tube structure with a "convex" axial section, the guide tube structure is inserted in the upper small end cavity of the rubber plug valve seat to form a slidable socket structure, which can slide The outer side of the socket structure is provided with a Y valve spring to form a slidable elastic socket structure. The inlet end of the Y valve body extends into the Y valve cap and forms a sealed connection with the lower large end cavity of the rubber plug valve pressure seat. The inlet end of the Y valve body The rubber plug valve is sealed between the rubber plug valve pressure seat, and the Y valve cap is pressed to open or close the rubber plug valve through the free end of the guide pipe structure. The Y valve body interface end is sleeved with a Y valve joint assembly. The Y valve body communicates with the guide conduit through the Y valve joint assembly. The above scheme adopts a hollow cylindrical channel structure, that is, the hollow cylinder is used to open the rubber plug to form a working channel structure. When working, the rubber plug is pressed to open, and when reset, the rubber plug is retracted and closed, making the working channel more concise and smooth.

In clinical application, the function of the rubber stopper valve is to prevent improper outflow of blood, but the hemostatic effect of the existing perforated rubber stopper valve is not good. In order to improve the hemostatic effect of the rubber stopper valve, this plan adopts the positive and negative cross rubber plug structure, as shown in Figure 3, the rubber stopper adopts the cross tendon structure, so that the friction force of the guide wire passing through is smaller, and the cutting method uses positive and negative cross cutting The shape makes the opening large enough to ensure the tightness of the rubber stopper. That is to say, the rubber plug valve is a double-concave elastic sealing film with a certain thickness. The concave surface of the elastic sealing film is provided with a cross rib structure, and the cross rib structure is provided with a cross-shaped penetration gap. Open or close the cross-shaped penetration gap at the free end. When the conduit structure is inserted, the cross-shaped slit can allow it to pass through and wrap around it to play a sealing role. When the conduit structure is pulled out, the cross-shaped slit is automatically closed to prevent blood from flowing out. Furthermore, in order to improve the sealing effect of the cross-shaped rubber plug and facilitate the smooth entry of the conduit structure into the plug valve, this scheme adopts a tapered cross-shaped penetration gap, that is, the gap interface with a wide front and a narrow rear, that is, the gap of the rubber plug valve. The opening width of the cross-shaped penetration slit on the outside is larger than the opening width of the cross-shaped penetration slit on the inside of the rubber plug valve. When the through pipe structure exits, it benefits from its inner narrow opening, which can achieve a better sealing effect.

In order to facilitate the use of the Y-shaped connector and make the elastic operation of the Y-bonnet more convenient for surgical operation, this solution adopts a slider circulation channel structure, that is, a triangular circulation slider channel structure to realize the spring-back movement of the valve cap. As shown in Figures 4 and 5, the outer wall of the lower large end of the rubber plug valve pressure seat of this solution is provided with an elastic buckle structure, and the inner wall of the Y valve cap is provided with a bump structure, pressing the Y valve cap, the bump structure It forms an elastic buckle connection with the elastic buckle structure, and the free end of the guide tube structure pushes the rubber plug valve away, and the Y valve cap is rotated to make the protrusion structure break away from the elastic buckle. After the Y valve spring moves along the lower part of the rubber plug valve seat The rotary return groove on the outer wall of the end moves back to the initial position, and the free end of the guide tube structure draws and closes the rubber plug valve. The buckle structure and its automatic return structure improve the user experience of the Y-shaped connector and simplify the operation.

In order to further improve the convenience of use of the Y-shaped connector, this proposal also discloses a freely rotatable Y-valve joint assembly, that is, a rotary joint structure, which adopts a separate combination structure between the valve body and the Luer joint, and uses O-type silicone The ring acts as a seal, so that the rotating male luer will not drive the valve body to rotate, which is easier to operate. As shown in Figure 2, specifically, the outer wall of the interface end of the Y valve body is provided with a Y valve sleeve ring eaves along the circumference. Pressure sleeve, O-shaped silicone ring, gasket pressure sleeve is set on the interface end of Y valve body, a Y valve PTFE gasket is sealed between the gasket pressure sleeve and the inner bottom surface of the ring eaves of the Y valve sleeve, and the Luer male connector is sleeved on the gasket pressure A rotatable sliding sleeve is formed on the sleeve, and an O-shaped silicone ring is sealed between the Luer male connector and the gasket pressure sleeve. Slide socket. The above structure enables the Luer male connector to be freely connected with other medical devices without affecting the state of the Y valve body.

In order to expand the application range of the Y-type connector, so that the Y-type connector of this solution can be used in the case of larger-sized catheters, this solution also adopts a large-hole structure in the inner cavity, that is, the working channel of the entire product uses a large hole of 3.2mm. The lumen design can pass through larger size catheters, specifically the lumen diameter of the Y valve body is 3.2mm.

The push-type Y-shaped connector of this solution is mainly used in PTCA surgery to assist in establishing a working channel for the guide wire to enter the human body outside the body, and the Y-shaped connector is used to help guide the wire to enter the human body. When the product is in use, the male luer connector is connected to the guide catheter, press the bonnet to open the rubber plug, insert the guide wire and rotate the bonnet to release the buckle. The bonnet rebounds back to the original position under the pressure of the spring. A guide wire is passed through a closed rubber plug into the body. The push-type Y-shaped connector of this solution uses a hollow cylinder to open the rubber plug to create a working channel structure, making the working channel more concise and smooth. The positive and negative cross rubber plug structure makes the friction force of the guide wire pass through smaller, and the opening is large enough to ensure the sealing of the rubber plug. The sliding block circulation channel structure is used to realize the movement of the bonnet pressing and rebounding. The separate combined structure of the valve body and the Luer joint is used to realize the rotation of the male Luer, which will not drive the valve body to rotate, and is easier to operate. Based on the above characteristics, the push-type Y-type connector of this solution has substantial characteristics and progress compared with existing similar products.

The push-type Y-type connector of this solution is not limited to the content disclosed in the specific implementation. The technical solutions in the examples can exist independently or include each other. Those skilled in the art can make simple replacements based on this solution combined with common knowledge. The program also falls within the scope of this program.

Claims (6)

1. A push-type Y-type connector, characterized in that it includes a Y valve body, an elastic Y valve cap assembly, and a Y valve joint assembly. The Y valve body is a circular tube structure, and the Y valve body includes a Y valve body inlet end, Y valve body extension section, Y valve body interface end, the Y valve body inlet end, Y valve body extension section, and Y valve body interface end are sequentially seamlessly connected to form the whole of the Y valve body, and the Y valve body The outer side of the body extension section is provided with an injection joint pipe that communicates with the interior of the Y valve body extension section. The elastic Y valve cap assembly includes a Y valve cap, a rubber plug valve seat, and a rubber plug valve. The Y valve cap is Cylindrical cap structure, the center of the top of the cylindrical cap structure is provided with a guide pipe structure extending to the inside of the Y valve cap in the axial direction, and the rubber plug valve pressure seat is a circle with a "convex" shape in the axial section. tube structure, the guide tube structure is inserted into the upper small end cavity of the rubber plug valve pressure seat to form a slidable socket structure, and the outer side of the slidable socket structure is sleeved with a Y valve spring to form a slidable Elastic socket structure, the inlet end of the Y valve body extends into the Y valve cap to form a sealed communication with the lower large end cavity of the rubber plug valve pressure seat, and the inlet end of the Y valve body is connected to the rubber plug valve The rubber plug valve is sealed between the press seats, and the Y valve cap is pressed to open or close the rubber plug valve through the free end of the guide pipe structure, and the interface end of the Y valve body is sleeved with the The Y valve joint assembly, the Y valve body communicates with the guide conduit through the Y valve joint assembly. 2. The push-type Y-type connector according to claim 1, wherein the rubber plug valve is a double-concave elastic sealing film with a certain thickness, and the concave surface of the elastic sealing film is provided with a cross rib structure , the cross rib structure is provided with a cross-shaped penetration gap, and the Y-valve cap is pressed to open or close the cross-shaped penetration gap through the free end of the guide tube structure. 3. The push-type Y-type connector according to claim 1, characterized in that, the opening width of the cross-shaped penetrating slit on the outside of the plug valve is larger than the cross-shaped penetrating slit on the inside of the rubber plug valve opening width. 4. The push-type Y-type connector according to claim 1, characterized in that, the outer wall of the lower large end of the rubber plug valve seat is provided with an elastic buckle structure, and the inner wall of the Y valve cap is There is a bump structure, press the Y valve cap, the bump structure forms an elastic buckle connection with the elastic buckle structure, the free end of the conduction pipe structure pushes the rubber plug valve, and rotates the The Y valve cap makes the protrusion structure break away from the elastic fastening and moves back to the initial position along the rotary return groove on the outer side wall of the lower part of the rubber plug valve pressure seat under the action of the Y valve spring. The free end of the guide tube structure is drawn to close the rubber plug valve. 5. The push-type Y-type connector according to claim 1, characterized in that, the outer wall of the interface end of the Y-valve body is provided with a Y-valve sleeve ring eave along the circumference, and the Y-valve connector assembly includes a Luer male connector . A sealing connection assembly, the sealing connection assembly includes a Y valve tetrafluoro gasket, a gasket pressing sleeve, and an O-shaped silicone ring, and the gasket pressing sleeve is set on the interface end of the Y valve body, and the gasket pressing sleeve is connected to the The Y valve PTFE gasket is sealed between the inner bottom surface of the eaves of the Y valve collar, and the Luer male connector is sleeved on the gasket pressing sleeve to form a rotatable sliding sleeve, and the Luer male connector is connected to the The O-shaped silicone ring is sealed between the gasket pressing sleeve, and the outer side of one end of the Luer male connector sleeved on the gasket pressing sleeve forms a rotatable sliding socket with the inner side of the ring eave of the Y valve sleeve. 6 . The push-type Y-type connector according to claim 1 , wherein the diameter of the inner cavity of the Y-valve body is 3.2 mm.