Venous pipe joint separation ring buckle

Abstract

The utility model provides a venous pipe joint separation ring buckle, and relates to the technical field of medical auxiliary equipment, the venous pipe joint separation ring buckle comprises a first half ring and a second half ring, the first half ring is hinged to the second half ring, the front end of the first half ring is provided with a buckle claw, and the buckle claw is buckled on the second half ring; anti-skid rubber pads are adhered to the inner surfaces of the first semi-ring and the second semi-ring, and the anti-skid rubber pads are propped against the venous catheter joint; the venous catheter further comprises a thread retaining ring, the thread retaining ring is provided with an internal thread, and the screwing direction of the internal thread is opposite to the screwing direction of the thread of the venous catheter connector. The thread retaining ring is evenly divided into an upper part and a lower part, and a pressing ring is connected to the thread retaining ring. The device has the advantages of being easy to mount and dismount, convenient to operate and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, and particularly relates to a separation snap ring for a venous tube connector. Background Art

[0002] Peripherally inserted central catheter (PICC) is to puncture and insert a catheter into the basilic vein in front of the elbow, and then push it forward along the blood vessel until it reaches the superior vena cava, avoiding the direct contact between chemotherapy drugs and upper limb veins. The blood flow velocity in the superior vena cava is very fast, which can dilute chemotherapy drugs, reduce the irritation of chemotherapy drugs to blood vessels, and reduce the occurrence of phlebitis.

[0003] The exposed part of the venous tube in PICC is often connected with a venous tube connector, which is also called a PICC venous tube connector. The Luer lock connector is one of the PICC venous tube connectors; the PICC venous tube connector needs to be replaced once a week, or the exposed part of the venous tube needs to be disinfected before the patient undergoes intravenous infusion; however, the PICC venous tube connector is often threadedly connected to the connection part at the tail end of the PICC catheter. Often, the connection between the PICC venous tube connector and the connection part at the tail end of the PICC catheter is relatively tight. Moreover, the connection part at the tail end of the PICC catheter is relatively smooth, so it is time-consuming and laborious to separate the PICC venous tube connector from the connection part at the tail end of the PICC catheter, and the newly replaced PICC venous tube connector is not easy to be installed in place, which affects the work efficiency of medical staff.

[0004] A venous indwelling needle, also known as a venous cannula needle, includes a stainless steel needle core, a soft outer cannula, and a plastic needle seat. During puncture, the stainless steel needle core and the soft outer cannula are jointly punctured and inserted into the blood vessel. After the catheter completely enters the blood vessel, the stainless steel needle core is withdrawn, and only the soft outer cannula is left in the blood vessel for infusion therapy, reducing the pain of repeated punctures for patients and reducing the workload of medical staff.

[0005] Some venous cannula needles are closed venous cannula needles. An extension tube is connected to the catheter tail end of the soft outer cannula. A catheter connector is often connected to the extension tube. A heparin cap is often threadedly connected to the end part of the catheter connector. The heparin cap is also a kind of venous tube connector. When there is blood residue in the heparin cap or the surface is contaminated, it needs to be replaced. Often, the connection between the heparin cap and the catheter connector is relatively tight, and it is not easy to separate the heparin cap from the catheter connector to replace the heparin cap; currently, it is time-consuming and laborious to replace the heparin cap, and the newly replaced heparin cap is not easy to be installed in place, which affects the work efficiency of medical staff.

[0006] There are also CLAVE connectors separators on the market, which have a backing plate and a lower pressing plate, and are quite useful for catheter connectors or the connecting parts at the tail ends of PICC catheters with wing-shaped connecting ends on both sides; however, there are also some catheter connectors or the connecting parts at the tail ends of PICC catheters that do not have the wing shape on both sides, and it is time-consuming and laborious for the CLAVE separator to separate the connecting ends without the wing shape on both sides. Therefore, the technical problem that those skilled in the art need to solve is to provide a venous catheter connector separation snap ring that is easy to install and disassemble, has convenient operation, and a wide range of applications. Summary of the Invention

[0007] The purpose of the present invention is to provide a venous catheter connector separation snap ring.

[0008] The embodiments of the present invention are implemented as follows:

[0009] The present invention provides a venous catheter connector separation snap ring, including: a first half ring and a second half ring, the first half ring is hinged to the second half ring, a claw is provided at the front end of the first half ring, and the claw is buckled on the second half ring; anti-slip rubber pads are pasted on the inner surfaces of the first half ring and the second half ring, and the anti-slip rubber pads are abutted against the venous catheter connector; a threaded snap ring is further included, the threaded snap ring has an internal thread, and the rotation direction of the internal thread is opposite to the thread rotation direction of the venous catheter connector; the threaded snap ring is evenly divided into upper and lower two parts, and a pressing ring is connected to the threaded snap ring.

[0010] In a preferred specific embodiment of the present invention, a first locking ring is connected above the first half ring, and the first locking ring is set to be annular or semi-annular; a second locking ring is connected below the second half ring, and the second locking ring is set to be annular or semi-annular.

[0011] In a preferred specific embodiment of the present invention, the claw is integrally formed with the first half ring, and arc-shaped teeth are provided on the surface of the claw; a groove-shaped opening is provided at the corresponding position of the second half ring, and the shape of the groove-shaped opening is adapted to the shape of the claw, and the second half ring is buckled and connected to the first half ring.

[0012] In a preferred specific embodiment of the present invention, a stepped hole is provided on the claw, the stepped hole is set to have a large hole at the proximal end from the abutting surface and a small hole at the distal end from the abutting surface, and a locking pin is inserted through the stepped hole; a blind hole is provided on the abutting surface of the second half ring and the claw, and the diameter of the blind hole is consistent with the diameter of the large hole.

[0013] A preferred specific embodiment of the present utility model, the locking pin includes a locking column, and the outer contour of the locking column is adapted to the diameter of the small hole; anti - detachment rings and annular unlocking pieces are respectively arranged at both ends of the locking column, the diameter of the anti - detachment ring matches the diameter of the large hole to prevent the locking pin from coming out along the first half - ring; the outer contour of the annular unlocking piece is larger than the diameter of the small hole, and the annular unlocking piece is pulled backward to separate the first half - ring and the second half - ring.

[0014] A preferred specific embodiment of the present utility model, a spring is fixedly arranged on the anti - detachment ring, and the spring is sleeved on the locking column.

[0015] A preferred specific embodiment of the present utility model, the threaded snap ring includes a first threaded snap ring and a second threaded snap ring; a first pressing ring is connected above the first threaded snap ring, and a second pressing ring is connected below the second threaded snap ring.

[0016] A preferred specific embodiment of the present utility model, a hinge column is arranged on one side of the first half - ring, the hinge column is embedded in the upper space of the second half - ring; a rotating shaft is concentrically arranged on the hinge column, and the rotating shaft is inserted into the second half - ring.

[0017] A preferred specific embodiment of the present utility model, a silica gel soft pad is attached to the inner side surface of the first locking ring; a silica gel soft pad is attached to the inner side surface of the second locking ring.

[0018] A preferred specific embodiment of the present utility model, after the first threaded snap ring and the second threaded snap ring are mutually buckled, the aperture formed by the first threaded snap ring and the second threaded snap ring is smaller than the diameter of the threaded hole.

[0019] The beneficial effects of the present utility model are:

[0020] 1. The first half - ring is hinged to the second half - ring, a claw is arranged at the front end of the first half - ring, the claw is buckled on the second half - ring, anti - slip rubber pads are pasted on the inner surfaces of the first half - ring and the second half - ring, the anti - slip rubber pads are abutted against the venous tube joint, after the first half - ring and the second half - ring are mutually buckled, the first half - ring and the second half - ring are pressed above the venous tube joint, and the anti - slip rubber pads are abutted against the venous tube joint to increase the friction between the first half - ring and the second half - ring and the venous tube joint. The threaded snap ring is screwed onto the bottom end of the venous tube joint, and by continuing to screw in the same direction, the venous tube joint can be separated, which is easy to disassemble and convenient to operate;

[0021] 2. Compared with the existing CLAVE connector separator that uses a backing plate and a lower pressing plate to act on both sides of the catheter connector seat or the connecting part at the end of the PICC catheter, the venous catheter joint separation buckle of the present application acts on the arc-shaped column of the catheter connector seat or the connecting part at the end of the PICC catheter, and is applicable to the catheter connector seat with or without side wings or the connecting part at the end of the PICC catheter, with a wide range of applications;

[0022] 3. A first locking ring is connected above the first half-ring, and a second locking ring is connected below the second half-ring. A silica gel soft pad is attached to the inner side surface of the first locking ring, and a silica gel soft pad is attached to the inner side surface of the second locking ring, which is convenient for fingers to be placed into the corresponding locking rings. The silica gel soft pad has a soft material, improving the use comfort of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of a venous catheter joint separation buckle of the present utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of a venous catheter joint separation buckle of the present utility model;

[0026] Figure 3 It is a schematic diagram of the locking pin of a venous catheter joint separation buckle of the present utility model;

[0027] Figure 4 It is a schematic diagram of the overall structure of the threaded snap ring of a venous catheter joint separation buckle of the present utility model;

[0028] Figure 5 It is a schematic diagram of the disassembled structure of the threaded snap ring of a venous catheter joint separation buckle of the present utility model.

[0029] Reference Numerals in the Drawings:

[0030] 1. First half-ring; 1-1. Claw; 2. First locking ring; 3. Second half-ring; 4. Second locking ring; 5. Anti-slip rubber pad; 6. Locking pin; 6-1. Locking column; 6-2. Anti-detachment ring; 6-3. Ring-shaped unlocking piece; 7. Spring; 8. First threaded snap ring; 9. First pressing ring; 10. Second threaded snap ring; 11. Second pressing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein generally may be arranged and designed in a variety of different configurations.

[0032] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0033] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0035] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0036] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] This application provides a separation snap ring for a venous tube connector to solve the technical problems that when replacing the venous tube connector currently, it is time-consuming and laborious for medical staff to twist the venous tube connector with both hands due to slippery hands, relatively smooth connection parts, or relatively tight twisting of the venous tube connector during separation, and it is not easy to install the newly replaced venous tube connector in place. For this reason, the following specific embodiments are provided in this application.

[0038] This embodiment provides a separation snap ring for a venous tube connector. Refer to Figures 1 to 5 , which includes a first half ring 1 and a second half ring 3. The first half ring 1 is hinged to the second half ring 3. Refer to Figure 1 and Figure 2 . One side of the first half ring 1 is provided with a hinge post, and the hinge post is embedded in the upper space of the second half ring 3. Specifically, on the side of the second half ring 3 where the hinge post is provided, there is a cylindrical groove, and the arc surface of the cylindrical groove is larger than the diameter of the hinge post, so that the hinge post can be embedded in the cylindrical groove to prevent the hinge post from detaching along the cylindrical groove. After the first half ring 1 and the second half ring 3 are buckled together, the first half ring 1 and the second half ring 3 are pressed on the surface of the tail end connection part of the PICC catheter or the catheter connection base.

[0039] Preferably, a rotating shaft is concentrically arranged on the hinge post, and the rotating shaft is inserted into the second half ring 3 to enhance the connection stability between the first half ring 1 and the second half ring 3.

[0040] A claw 1-1 is provided at the front end of the first half ring 1. Refer to Figure 2 . The claw 1-1 is buckled on the second half ring 3. The claw 1-1 is arranged on the side opposite to the hinge post. The claw 1-1 extends along the front end of the first half ring 1. The claw 1-1 is integrally formed with the first half ring 1. Arc-shaped teeth are provided on the surface of the claw 1-1. A groove-shaped opening is provided at the corresponding position of the second half ring 3. The groove-shaped opening is adapted to the shape of the claw 1-1. The groove-shaped opening is provided above the second half ring 3 and is located in the outer area of the second half ring 3 and is adapted to the shape of the claw 1-1, so that the second half ring 3 and the first half ring 1 can be buckled and connected to improve the connection tightness.

[0041] Preferably, a stepped hole is provided on the claw 1-1. The stepped hole is configured such that the proximal end from the abutting surface is a large hole, and the distal end from the abutting surface is a small hole. The small hole penetrates through the claw 1-1. The abutting surface is the longitudinal abutting surface of the first half-ring 1 and the second half-ring 3. A locking pin 6 is inserted into the stepped hole. A blind hole is provided on the abutting surface of the second half-ring 3 and the claw 1-1. The blind hole is concentric with the stepped hole, and the diameter of the blind hole is the same as the diameter of the large hole. The locking pin 6 is inserted into the stepped hole and abuts against the inner wall of the blind hole to lock the first half-ring 1 and the second half-ring 3, improving the firmness of fastening.

[0042] The locking pin 6 includes a locking column 6-1. Refer to Figure 3 , the outer contour of the locking column 6-1 is adapted to the diameter of the small hole, and the locking column 6-1 slides back and forth along the small hole. Anti-detachment rings 6-2 and annular unlocking pieces 6-3 are respectively provided at both ends of the locking column 6-1. The diameter of the anti-detachment ring 6-2 matches the diameter of the large hole. The anti-detachment ring 6-2 reciprocates between the blind hole and the large hole. When the anti-detachment ring 6-2 is placed in the blind hole section, the locking pin 6 locks the first half-ring 1 and the second half-ring 3. When the anti-detachment ring 6-2 is placed in the large hole section, the locking pin 6 unlocks the first half-ring 1 and the second half-ring 3 so that the first half-ring 1 and the second half-ring 3 can be separated from each other.

[0043] The annular unlocking piece 6-3 is placed outside the stepped hole. The outer contour of the annular unlocking piece 6-3 is larger than the diameter of the small hole. Pull the annular unlocking piece 6-3 backward to separate the first half-ring 1 and the second half-ring 3, which is convenient for separation after disassembling the venous tube connector.

[0044] Preferably, a spring 7 is fixedly provided on the anti-detachment ring 6-2. The spring 7 is inserted through the locking column 6-1. When the locking pin 6 is placed in the stepped hole of the claw 1-1, the spring 7 is located in the large hole section so that the locking pin 6 can lock the first half-ring 1 and the second half-ring 3 in the natural state, preventing the first half-ring 1 and the second half-ring 3 from separating when force is applied to separate the venous tube connector.

[0045] Anti-slip rubber pads 5 are pasted on the inner surfaces of the first half-ring 1 and the second half-ring 3. The anti-slip rubber pads 5 abut against the venous tube connector, increasing the friction between the first half-ring 1 and the second half-ring 3 and the venous tube connector, making it easy to install and disassemble the venous tube connector and facilitating operation.

[0046] The separation ring buckle of the venous tube connector of the present application further includes a threaded snap ring. Refer to Figure 4 and Figure 5, the threaded snap ring has internal threads, and the helix direction of the internal threads is opposite to that of the threads of the venous catheter adapter; the first half-ring 1 and the second half-ring 3 are buckled on the tail-end connection part of the PICC catheter. The threaded snap ring is rotated in the reverse direction to the bottom end of the threads of the venous catheter adapter, and a continuous force is applied in the same helix direction to disassemble the venous catheter adapter from the tail end of the PICC catheter. The operation is convenient, easy to disassemble, and applicable to the disassembly of venous catheter adapters with and without two wings at the tail-end connection part of the PICC catheter, with a wide range of applications.

[0047] When replacing the new venous catheter adapter, buckle the first half-ring 1 and the second half-ring 3 on the tail-end connection part of the PICC catheter. Rotate the threaded snap ring in the reverse direction to the bottom end of the threads of the venous catheter adapter, and continuously apply a reverse force to connect the venous catheter adapter with the tail end of the PICC catheter. The operation is convenient and easy to install.

[0048] Or, buckle the first half-ring 1 and the second half-ring 3 on the catheter connection base of the venous indwelling needle, and twist the tail end of the heparin cap by hand to easily separate the heparin cap from the catheter connection base.

[0049] Preferably, the threaded snap ring is evenly divided into upper and lower two parts, and a pressing ring is connected to the threaded snap ring; specifically, the threaded snap ring includes a first threaded snap ring 8 and a second threaded snap ring 10; the first threaded snap ring 8 and the second threaded snap ring 10 are symmetrically arranged. After the first threaded snap ring 8 and the second threaded snap ring 10 are buckled together, the aperture formed by the first threaded snap ring 8 and the second threaded snap ring 10 is smaller than the diameter of the threaded hole, so that when the first threaded snap ring 8 and the second threaded snap ring 10 are buckled on the venous catheter adapter, there is enough pressing force to easily separate the venous catheter adapter.

[0050] A first pressing ring 9 is connected above the first threaded snap ring 8, refer to Figure 5 , a second pressing ring 11 is connected below the second threaded snap ring 10. The first pressing ring 9 is set as a large semi-circular ring or a circular ring, which is convenient for applying force during screwing and convenient for the thumb to be placed in.

[0051] A second pressing ring 11 is connected below the second threaded snap ring 10. The second pressing ring 11 is set as a large semi-circular ring or a circular ring, which is convenient for applying force during screwing and convenient for the index finger to be placed in.

[0052] A first locking ring 2 is connected above the first half-ring 1, refer to Figure 1 , the first locking ring 1 is set as a circular ring or a semi-circular ring, which is convenient for the thumb to be placed in; a second locking ring 4 is connected below the second half-ring 3. The second locking ring 4 is set as a circular ring or a semi-circular ring, which is convenient for the index finger to be placed in.

[0053] A silicone soft pad is attached to the inner side surface of the first locking ring 2; a silicone soft pad is attached to the inner side surface of the second locking ring 4; the silicone soft pad increases the flexibility of the first locking ring 2 and the second locking ring 4 and improves the comfort of the medical staff when holding.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A venous tube connector separation buckle, characterized in that: include: A first half ring (1) and a second half ring (3), wherein the first half ring (1) is hinged to the second half ring (3), a buckle claw (1-1) is provided at the front end of the first half ring (1), and the buckle claw (1-1) is buckled on the second half ring (3); The inner surfaces of the first half ring (1) and the second half ring (3) are both adhered with anti-skid rubber pads (5), and the anti-skid rubber pads (5) are in contact with the intravenous tube connector; Also included is a threaded buckle ring, the threaded buckle ring having an internal thread, the internal thread having a rotation direction opposite to that of the thread of the intravenous tube connector; The threaded buckle ring is evenly divided into two parts, an upper part and a lower part, and a pressing ring is connected to the threaded buckle ring.

2. A venous tube connector separation buckle according to claim 1, characterized in that: A first locking ring (2) is connected above the first half ring (1), and the first locking ring (2) is arranged in a ring shape or a semi-ring shape; A second locking ring (4) is connected below the second half ring (3), and the second locking ring (4) is arranged in a ring shape or a semi-ring shape.

3. A venous tube connector separation buckle according to claim 1, characterized in that: The clasp (1-1) is integrally formed with the first half ring (1), and arc-shaped teeth are arranged on the surface of the clasp (1-1); A slot-shaped opening is provided at a corresponding position of the second half ring (3), the slot-shaped opening being adapted to the shape of the buckle claw, and the second half ring (3) is buckled and connected to the first half ring (1).

4. A venous tube connector separation buckle according to claim 3, characterized in that: The buckle claw (1-1) is provided with a stepped hole, the stepped hole is configured to be a large hole at the proximal end of the abutment surface and a small hole at the distal end of the abutment surface, and a locking pin (6) is inserted into the stepped hole; A blind hole is provided on the abutting surface between the second half ring (3) and the buckle claw (1-1), and the diameter of the blind hole is consistent with the diameter of the large hole.

5. A venous tube connector separation buckle according to claim 4, characterized in that: The locking pin (6) comprises a locking column (6-1), and the outer contour of the locking column (6-1) is adapted to the diameter of the small hole; An anti-slip ring (6-2) and an annular unlocking piece (6-3) are respectively provided at both ends of the locking column (6-1); the diameter of the anti-slip ring (6-2) matches the diameter of the large hole to prevent the locking pin (6) from escaping along the first half ring (1); The outer contour of the annular unlocking piece (6-3) is larger than the diameter of the small hole, and the annular unlocking piece (6-3) is pulled backwards to separate the first half ring (1) and the second half ring (3).

6. A venous tube connector separation buckle according to claim 5, characterized in that: A spring (7) is fixedly arranged on the anti-slip ring (6-2), and the spring (7) is passed through the locking column (6-1).

7. A venous tube connector separation buckle according to claim 1, characterized in that: The threaded buckle ring comprises a first threaded buckle ring (8) and a second threaded buckle ring (10); A first pressing ring (9) is connected above the first threaded buckle ring (8), and a second pressing ring (11) is connected below the second threaded buckle ring (10).

8. A venous tube connector separation buckle according to claim 1, characterized in that: A hinge column is provided on one side of the first half ring (1), and the hinge column is embedded in the upper space of the second half ring (3); The hinged column is coaxially provided with a rotation shaft, and the rotation shaft is plugged into the second half ring (3).

9. A venous tube connector separation buckle according to claim 2, characterized in that: A silicone pad is attached to the inner side of the first locking ring (2); A silicone pad is attached to the inner side of the second locking ring (4).

10. A venous tube connector separation buckle according to claim 7, characterized in that: After the first threaded buckle ring (8) and the second threaded buckle ring (10) are buckled together, the diameter of the hole formed by the first threaded buckle ring (8) and the second threaded buckle ring (10) is smaller than the diameter of the threaded hole.

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