A push-type medical Y-type hemostatic valve

Abstract

The present invention discloses a push-type medical Y-type hemostatic valve, which relates to the field of medical device technology. The key points of its technical solution are: it includes a hollow cylindrical valve body, a hollow cylindrical common joint is obliquely connected to the side wall of the valve body, the inner cavity of the common joint is connected to the inner cavity of the valve body, a sealing joint is provided at one end of the valve body, an internal thread groove is provided in the joint, a check valve is provided in the inner cavity of the valve body near the common joint, the check valve is fixedly connected to a locking hose, a locking device is provided on the outside of the locking hose, and a box body is provided on the outside of the locking device. The locking structure of the Y-type hemostatic valve of the present invention is simple and easy to operate; at the same time, the locking component is arranged on the side of the valve body, which can avoid affecting the insertion of tubes and guide wires; and the hemostatic component can achieve low resistance when inserting tubes, facilitating tube insertion, and prevent blood from flowing back.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a press-type medical Y-shaped hemostatic valve. Background Art

[0002] During percutaneous coronary intervention (PCI) using catheters, guidewires, balloons, and stents, a hemostatic valve is required to prevent bleeding from the blood vessels. This type of hemostatic valve is used to pass the guidewire, balloon, catheter, or stent through the blood vessels for interventional procedures and also prevents bleeding. A commonly used hemostatic valve in clinical practice is called a Y-type hemostatic valve.

[0003] The Y-type hemostatic valve in the existing technology is mainly composed of a Luer connector, a valve body, a common connector and a push-type locking device arranged at the end of the valve body. When inserting a catheter, guide wire, or balloon, it is inserted into the valve body through the hole of the locking device and then into the puncture sheath through the Luer connector and then into the human blood vessel.

[0004] The locking device of the existing technology is mainly arranged at the end of the valve body. When inserting a catheter, guide wire, or balloon, it is necessary to pass through the locking device. When medical personnel lock the device, it is very easy to touch the inserted catheter, guide wire, balloon, etc., which affects the surgical effect and may cause certain damage to the human body. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems and provide a push-type medical Y-type hemostatic valve. By setting the locking component on the side of the valve body, it avoids affecting the insertion of tubes and guide wires. At the same time, the locking structure is simple and easy to operate, which can not only realize the locking operation of catheters and guide wires but also achieve the hemostatic effect.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a press-type medical Y-type hemostatic valve, comprising a hollow cylindrical valve body, a hollow cylindrical common joint obliquely connected to the side wall of the valve body, the inner cavity of the common joint is communicated with the inner cavity of the valve body, a sealing joint is provided at one end of the valve body, an internal thread groove is provided in the joint, a check valve is provided in the inner cavity of the valve body close to the common joint, the check valve is fixedly connected to a locking hose, a locking device is provided on the outside of the locking hose, and a box body is provided on the outside of the locking device.

[0007] By adopting the above technical solution, a common connector is provided for the injection of auxiliary medicines; a sealing connector with an internal thread is provided to facilitate the sealed connection between the Y valve and the puncture sheath; a check valve is provided to prevent blood backflow; a locking hose and a locking device are provided to facilitate the fixation of the catheter and the guide wire; a box body is provided to protect the locking device and cooperate with the locking device to complete the locking.

[0008] The present invention is further configured as follows: the check valve is soft and trumpet-shaped, has elasticity, and the large diameter end is connected to the locking hose; the connecting section between the check valve and the locking hose is made of hard material, and the connecting section is tightly connected to the inner wall of the valve body; the inner diameter of the small diameter end of the check valve is equivalent to the diameter of the guiding catheter during surgery.

[0009] By adopting the above technical solution, by setting the check valve to a retractable soft trumpet shape, when inserting the catheter or guidewire, due to the small contact area between the check valve and the catheter guidewire, there is almost no resistance, and the catheter guidewire can be inserted smoothly. When blood flows back into the valve body, the pressure of the blood will tightly squeeze the check valve against the outer wall of the catheter to form a closed space, and the blood will no longer flow out; by setting the inner diameter of the small diameter end of the check valve to be equivalent to the diameter of the guiding catheter, when inserting the catheter, due to the close fit between the catheter and the check valve, blood backflow can be initially prevented.

[0010] The present invention is further configured as follows: the middle section of the locking hose is made of a soft material and is compressible, and the other end of the locking hose is made of a hard material and is tightly connected to the inner wall of the valve body.

[0011] By adopting the above technical solution and setting the middle section of the locking hose to a soft material, it is possible to achieve a better locking effect because both the conduit and the locking hose are made of rubber, with a large contact area and high friction.

[0012] The present invention is further configured as follows: the locking device includes a conical soft locking sleeve, the locking sleeve is divided into four equal parts longitudinally, an annular groove is engraved on the outer side of the locking sleeve, a locking rope is provided in the annular groove, the locking rope is arranged in two and one crosswise, and the bottom is fixedly connected to the annular groove.

[0013] By adopting the above technical solution, by providing a conical soft locking sleeve and dividing it into four equal parts longitudinally, it is easier to achieve locking and loosening operations; by providing annular grooves and cross-arranged locking ropes, locking is made more convenient and more effective.

[0014] The present invention is further configured as follows: the end of the locking rope is fixedly connected to a locking buckle, a pressing rod is provided at the top and bottom of the locking buckle, small holes are opened at the top and bottom of the box body, and the pressing rod passes through the small holes.

[0015] By adopting the above technical solution, by setting a locking buckle and a pressing rod, since the locking buckle is fixedly connected to the locking rope, the locking buckle can be moved up and down by the pressing rod, and the up and down movement of the pressing rod drives the tightening and loosening of the locking rope, thereby realizing the locking and loosening operation of the catheter guide wire; by setting a small hole for the pressing rod to pass through on the box body, it is convenient for medical staff to push the locking buckle through the pressing rod.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. The push-type medical Y-type hemostatic valve of the present invention has a locking component arranged on the side of the valve body to avoid interference with tube and guide wire insertion. At the same time, the locking structure is simple and easy to operate.

[0018] 2. The hemostatic component of the push-type medical Y-shaped hemostatic valve of the present invention can achieve low resistance during tube insertion, making it easy to insert the tube, and can also prevent blood from flowing back. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram of the internal structure of a push-type medical Y-type hemostatic valve according to an embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of the locking portion of a push-type medical Y-shaped hemostatic valve according to an embodiment of the present invention;

[0021] In the figure: 1. Valve body; 2. Ordinary joint; 3. Sealing joint; 4. Internal thread groove; 5. Check valve; 6. Locking hose; 7. Box body; 8. Locking buckle; 9. Press rod; 10. Locking sleeve; 11. Ring groove; 12. Locking rope. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the embodiments of the present invention and the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the embodiments.

[0024] Example:

[0025] like Figure 1 、 Figure 2As shown, a push-type medical Y-type hemostatic valve comprises a hollow cylindrical valve body 1, a hollow cylindrical common joint 2 is obliquely connected to the side wall of the valve body 1, the inner cavity of the common joint 2 is connected to the inner cavity of the valve body 1, a sealing joint 3 is installed at one end of the valve body 1, an internal thread groove 4 is provided in the joint, a check valve 5 is provided in the inner cavity of the valve body 1 near the common joint 2, the check valve 5 is soft and trumpet-shaped, with elasticity, and the large diameter end is connected to the locking hose 6, the connecting section of the check valve 5 and the locking hose 6 is made of hard material, and the connecting section is tightly connected to the inner wall of the valve body 1, the inner diameter of the small diameter end of the check valve 5 is equivalent to the diameter of the guiding catheter during surgery; the middle section of the locking hose 6 is made of soft The rubber material is compressible, and the other end of the locking hose 6 is made of hard material and is tightly connected to the inner wall of the valve body 1; a locking device is provided on the outside of the locking hose 6, and the locking device includes a conical soft locking sleeve 10, and the locking sleeve 10 is longitudinally divided into four equal parts. An annular groove 11 is engraved on the outside of the locking sleeve 10, and a locking rope 12 is installed in the annular groove 11. The locking ropes 12 are arranged in two and one cross, and the bottom is fixedly connected to the annular groove 11; a locking buckle 8 is installed at the end of the locking rope 12, and a pressing rod 9 is provided at the top and bottom of the locking buckle 8. A box body 7 is installed on the outside of the locking device, and small holes are opened at the top and bottom of the box body 7, and the pressing rod 9 passes through the small hole.

[0026] Working principle: When medical staff need to use the Y-valve, they first connect the Y-valve to the puncture sheath through the sealing joint 3, and then push the pressing rod 9 upward to relax the locking device, seal the ordinary joint 2, and then insert the guide wire and catheter. Since only the small diameter end of the trumpet-shaped check valve 5 contacts the catheter, the resistance is small and it is convenient for tube insertion, and the blood will not flow back. After the tube insertion is completed, a small amount of blood may flow out, but the small amount of blood will squeeze the trumpet-shaped check valve 5, making it close to the catheter, and after forming a closed space, the blood will no longer flow back out; after the tube insertion is completed, press the pressing rod 9 downward to move the locking buckle 8 downward, thereby driving the cross-arranged locking rope 12 to tighten, and the soft locking sleeve 10 forms pressure on the catheter under the action of the locking rope 12, thereby achieving a locking effect; if auxiliary agents need to be injected during the operation, such as contrast agents, they can be injected through the ordinary joint 2.

[0027] In the above-mentioned embodiment of the present invention, compared with the existing conventional hemostatic valve, the press-type medical Y-type hemostatic valve of the present invention can avoid affecting the insertion of tubes and guide wires, and its locking structure is simple and easy to operate; in addition, the hemostatic component of the hemostatic valve of the present invention can not only achieve low resistance during tube insertion, facilitate tube insertion, but also prevent blood reflux.

[0028] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A push-type medical Y-type hemostatic valve, characterized by: The invention comprises a hollow cylindrical valve body (1), the side wall of the valve body (1) is obliquely connected to a hollow cylindrical common joint (2), the inner cavity of the common joint (2) is connected to the inner cavity of the valve body (1), one end of the valve body (1) is provided with a sealing joint (3), the inner cavity of the joint is provided with an internal thread groove (4), the inner cavity of the valve body (1) is provided with a check valve (5) close to the common joint (2), the check valve (5) is fixedly connected to a locking hose (6), the outer side of the locking hose (6) is provided with a locking device, and the outer side of the locking device is provided with a box body (7); The check valve (5) is soft and trumpet-shaped, and has elasticity, and the large-diameter end is connected to the locking hose (6). The connecting section between the check valve (5) and the locking hose (6) is made of a hard material, and the connecting section is tightly connected to the inner wall of the valve body (1). The inner diameter of the small-diameter end of the check valve (5) is equivalent to the diameter of the guiding catheter during surgery; The middle section of the locking hose (6) is made of a soft material and has compressibility, and the other end of the locking hose (6) is made of a hard material and is tightly connected to the inner wall of the valve body (1).

2. The push-type medical Y-shaped hemostatic valve according to claim 1, characterized in that: The locking device comprises a conical soft locking sleeve (10), the locking sleeve (10) is longitudinally divided into four equal parts, an annular groove (11) is engraved on the outer side of the locking sleeve (10), a locking rope (12) is arranged in the annular groove (11), two locking ropes (12) are arranged crosswise with one other, and the bottom of the locking ropes (12) is fixedly connected to the annular groove (11).

3. The push-type medical Y-shaped hemostatic valve according to claim 2, characterized in that: The end of the locking rope (12) is fixedly connected to a locking buckle (8), and a pressing rod (9) is provided at the top and bottom of the locking buckle (8). Small holes are opened at the top and bottom of the box body (7), and the pressing rod (9) passes through the small holes.

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