Hardener injection device for varicosity

Abstract

The invention provides a hardener injection device for varicose veins, and relates to the field of injection devices.The hardener injection device for varicose veins is fixed to the varicose veins of the lower limbs and comprises two positioning plates, the two positioning plates are arranged up and down, the left ends of the positioning plates are connected with a bandage, the right end of the bandage is connected with a hook-and-loop fastener, and the hook-and-loop fastener is connected with a hook-and-loop fastener. The magic tape is adhered to the right end of the bandage, and a positioning hole is formed in the upper bandage and is aligned to the varicosity. The upper end of the butt joint device is communicated with the lower end of the injection needle in a butt joint manner. The hardening agent injection device for varicosity is composed of a positioning plate, a bandage, a supporting rod, a butt joint device and an injection needle, and a clamping assembly is installed at the right end of the supporting rod. The clamping assembly is composed of a sliding rod, a magnetic block, a short spring, a magnetic sheet and a fixing rod, the movement of the injection needle is limited, and the fixing and limiting effects are achieved. The injection needle is prevented from loosening and falling off in the moving process of a patient, and the injection needle can be always inserted into varicose veins.

Description

Technical Field

[0001] The present invention relates to the technical field of injection devices, in particular to a sclerosant injection device for varicose veins. Background Art

[0002] Varicose veins often occur in the lower extremities. The main cause of varicose veins is congenitally weak vascular membranes or prolonged posture with little change, which causes blood to accumulate in the lower extremities. Over time, this damages the venous valves, resulting in high venous pressure and causing the blood vessels to protrude from the skin surface.

[0003] Currently, varicose veins are treated with foam sclerosant. Typically, the patient is first positioned upright to visually identify the varicose veins in the lower limbs. A blood collection needle is then inserted into the vein, and an infusion patch is applied to secure the needle. The patient then lies down on the operating table, and the saline syringe is replaced with a sclerosant syringe. During the injection process, the patient can easily dislodge the needle after successful puncture during the transition from an upright to a supine position, resulting in an unsuccessful injection.

[0004] At the same time, the blood collection needle has a single-tube structure. During the injection operation, the saline syringe is withdrawn to see blood, confirming that the needle is in the blood vessel, and then the hardening agent syringe is replaced for injection. During the replacement process, if the operation is improper, it is easy to increase the source of contamination and cause infection. Frequent replacement of different syringes is cumbersome and very troublesome. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a sclerosant injection device for varicose veins, which solves the problems raised in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sclerosant injection device for varicose veins, fixed on the varicose veins of the lower limbs, including two positioning plates, the two positioning plates are arranged up and down, the left end of the positioning plate is connected to a strap, the right end of the strap is connected to a Velcro, the Velcro is bonded to the right end of the strap, and the strap located above is provided with a positioning hole, and the positioning hole is aligned with the varicose veins.

[0009] It also includes a docking device and an injection needle. The upper end of the docking device is connected to the lower end of the injection needle. The injection needle is aligned with the positioning hole and inserted into the varicose vein. The left end of the upper positioning plate is connected to a support rod, and the right end of the support rod is connected to a clamping assembly. The clamping assembly is used to fix the injection needle.

[0010] The bottom of the docking device is connected to a sclerosant injection tube and a saline injection tube. A cavity is opened in the docking device, and a partition is placed in the cavity. The partition divides the cavity into two chambers. An injection replacement component is provided in the chamber. Two plug posts are connected to the lower end of the injection needle, and the two plug posts correspond one to one to the two chambers.

[0011] Preferably, the injection replacement assembly includes a blocking block, a vertical rod, an airbag and a strip air ring. The vertical rod is arranged vertically, and the upper end of the vertical rod is connected to the top of the inner wall of the chamber. The blocking block slides with the vertical rod body, the airbag is placed on the side of the docking device, the strip air ring is wrapped around the upper end of the vertical rod, and the lower end of the strip air ring is connected to the blocking block. The airbag and the strip air ring are docked and connected, and the upper end of the blocking block can be inserted into the plug column.

[0012] Preferably, the side of the blocking block is slidably engaged with the partition, an extension portion is provided on the side of the blocking block away from the partition, the vertical rod is slidably engaged with the extension portion, the lower end of the vertical rod is connected to a long spring, and the upper end of the long spring is connected to the extension portion.

[0013] Preferably, the top of the airbag is connected to a trachea, the lower end of the strip balloon is connected to the extension part, and the upper end of the strip balloon is connected to the trachea.

[0014] Preferably, the sclerosant injection tube is connected to one of the chambers, and the physiological saline injection tube is connected to the other chamber. A rubber membrane is provided on the upper end of the docking device, and the insertion column passes through the rubber membrane and is inserted into the chamber.

[0015] Preferably, the clamping assembly includes two sliding rods, a fixed block, two magnetic blocks, and a fixed rod. The left end of the sliding rod is connected to the support rod, and the right end of the sliding rod is connected to the fixed block. A protrusion is connected to the center of the outer side of the injection needle, and the protrusion is located between the two sliding rods. The magnetic block slides in cooperation with the sliding rod, and the magnetic blocks are symmetrically arranged on both sides of the injection needle. The left end of the fixed rod is hinged to the right end of the support rod, and the right end of the fixed rod is fixedly buckled with the fixed block.

[0016] Preferably, magnetic sheets are symmetrically connected to the left and right sides of the protrusion, and the magnetic poles of the magnetic sheets and the opposite sides of the magnetic block are the same. A short spring is connected to the side of the magnetic block away from the injection needle, one of the short springs is connected to the right end of the support rod, and the other short spring is connected to the fixed block.

[0017] Preferably, a buckle block is connected to the back of the positioning plate, and the Velcro is provided with a plurality of button holes, through which the buckle block can pass.

[0018] Preferably, the side of the binding strap is connected with a fixing ring, and the fixing ring is used to fix the physiological saline injection tube.

[0019] (3) Beneficial effects

[0020] The present invention provides a sclerosant injection device for varicose veins. It has the following beneficial effects:

[0021] This varicose vein sclerosant injection device consists of a positioning plate, a binding strap, a support rod, a docking station, and an injection needle. A clamping assembly is mounted on the right end of the support rod. The clamping assembly, consisting of a slide bar, a magnetic block, a short spring, a magnetic plate, and a fixed rod, restricts the movement of the injection needle, providing a secure hold. This prevents the needle from loosening and falling out during patient movement, ensuring it remains inserted into the varicose vein.

[0022] 2. This varicose vein sclerosant injection device features two pins at the base of the needle and two chambers within the docking station, with the pins corresponding to each chamber. Inside the docking station are a plugging block, a vertical rod, and a long spring. An airbag is mounted on the outside of the docking station. The airbag is connected to a strip-shaped air ring, which works with the long spring to raise and lower the plugging block, thereby selectively controlling the needle's connection to either the saline or sclerosant tube. This prevents contamination and infection during the replacement process, making operation easier and simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention from another angle;

[0025] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 4 This is a cross-sectional view of the docking device structure of the present invention;

[0027] Figure 5 This is a diagram showing the internal structure of the docking device of the present invention.

[0028] In the figure: 1 positioning plate, 11 buckle block, 2 strap, 21 fixing ring, 22 Velcro, 23 positioning hole, 3 rods, 31 fixing rod, 4 docking device, 41 cavity, 42 partition, 43 rubber membrane, 44 hardener injection tube, 45 saline injection tube, 5 sliding rod, 51 fixing block, 6 magnetic block, 61 short spring, 7 injection needle, 71 protrusion, 72 magnetic sheet, 73 plug post, 8 blocking block, 81 extension part, 82 vertical rod, 83 long spring, 9 airbag, 91 trachea, 92 strip balloon. DETAILED DESCRIPTION

[0029] The embodiment of the present invention provides a sclerosant injection device for varicose veins, such as Figure 1-5 As shown, it is fixed at the varicose veins of the lower limbs, and includes two positioning plates 1. The two positioning plates 1 are arranged up and down. A strap 2 is fixedly installed on the left end of the positioning plate 1, and a Velcro 22 is fixedly installed on the right end of the strap 2. The Velcro 22 is fixedly bonded to the right end of the strap 2. A positioning hole 23 is opened on the upper strap 2, and the positioning hole 23 is aligned with the varicose veins.

[0030] The device also includes a docking device 4 and an injection needle 7. The upper end of the docking device 4 is fixedly mounted to the lower end of the injection needle 7 and connected to each other. The injection needle 7 is aligned with the positioning hole 23 and inserted into the varicose vein. The left end of the upper positioning plate 1 is fixedly connected to the support rod 3. The right end of the support rod 3 is fixedly mounted to the clamping assembly, which is used to secure the injection needle 7.

[0031] The bottom of the docking station 4 is connected to a sclerosant injection tube 44 and a saline injection tube 45. A cavity 41 is defined within the docking station 4, and a partition 42 is fixedly mounted within the cavity 41. This partition 42 divides the cavity 41 into two chambers, each housing an injection replacement assembly. Two pins 73 are fixedly mounted at the lower end of the injection needle 7, corresponding to each chamber. The injection needle 7 is connected to the chamber of the docking station 4 via the pins 73.

[0032] The injection replacement assembly includes a blocking block 8, a vertical rod 82, an airbag 9, and a strip balloon 92. The vertical rod 82 is arranged vertically, and its upper end is welded to the top of the chamber inner wall. The blocking block 8 slides with the vertical rod 82. The airbag 9 is fixedly mounted on the side of the docking device 4. The strip balloon 92 is wrapped around the upper end of the vertical rod 82, and the lower end of the strip balloon 92 contacts the blocking block 8. The airbag 9 and the strip balloon 92 are connected and docked. The upper end of the blocking block 8 can be inserted into the plug post 73. The blocking block 8 is used to block the plug post 73.

[0033] The side of the blocking block 8 slides with the partition 42. The blocking block 8 has an extension part 81 on the side away from the partition 42. The vertical rod 82 slides with the extension part 81. A long spring 83 is fixedly installed at the lower end of the vertical rod 82, and the upper end of the long spring 83 is fixedly connected to the extension part 81.

[0034] The top of the airbag 9 is connected to an air pipe 91 , the lower end of the strip-shaped air ring 92 abuts against the extension portion 81 , and the upper end of the strip-shaped air ring 92 is connected to the air pipe 91 .

[0035] Working Principle: When not in use, long spring 83 expands, pushing block 8 upward, blocking post 73. When one of the posts 73 needs to be connected, the corresponding airbag 9 is pressed. The gas inside airbag 9 flows through air tube 91 and enters strip balloon 92. Strip balloon 92 slowly inflates and expands, causing its lower end to continuously push against block 8, causing block 8 to descend away from post 73. When the pressure of airbag 9 is released, block 8 rises again to block post 73.

[0036] The hardener injection tube 44 is connected to one of the chambers, and the physiological saline injection tube 45 is connected to the other chamber. A rubber membrane 43 is fixedly installed on the upper end of the docking device 4, and the insertion column 73 passes through the rubber membrane 43 and is inserted into the chamber.

[0037] The clamping assembly includes two slide bars 5, a fixing block 51, two magnets 6, and a fixing rod 31. The left end of the slide bar 5 is welded to the left end of the support rod 3, and the right end of the slide bar 5 is welded to the fixing block 51. A protrusion 71 is connected to the center of the outer side of the injection needle 7, and the protrusion 71 overlaps the two slide bars 5. The magnets 6 slide in conjunction with the slide bars 5 and are symmetrically arranged on both sides of the injection needle 7. The left end of the fixing rod 31 is hinged to the right end of the support rod 3, and the right end of the fixing rod 31 is fixedly engaged with the fixing block 51.

[0038] Magnetic sheets 72 are symmetrically inlaid on both sides of the protrusion 71. The magnetic poles of the magnetic sheets 72 and the opposite sides of the magnetic block 6 are the same. A short spring 61 is fixedly installed on the side of the magnetic block 6 away from the injection needle 7. One of the short springs 61 is welded to the right end of the support rod 3, and the other short spring 61 is welded to the fixed block 51.

[0039] Working principle: The short spring 61 is used to push the two magnetic blocks 6 towards each other. Due to the interaction between the magnetic piece 72 and the magnetic block 6, the movement of the injection needle 7 is restricted. The fixing rod 31 is used to fix the magnetic block 6, thereby achieving the effect of fixing the injection needle 7.

[0040] A buckle block 11 is welded on the back of the positioning plate 1 , and the Velcro 22 is provided with a plurality of button holes, through which the buckle block 11 can pass.

[0041] A fixing ring 21 is sewn on the side of the binding belt 2 , and the fixing ring 21 is used to fix the physiological saline injection tube 45 .

[0042] In summary, the varicose vein sclerosant injection device comprises a positioning plate 1, a binding band 2, a support rod 3, a docking device 4, and an injection needle 7. A clamping assembly is mounted on the right end of the support rod 3. The clamping assembly, consisting of a slide bar 5, a magnetic block 6, a short spring 61, a magnetic plate 73, and a fixing rod 31, restricts the movement of the injection needle 7, providing a secure hold. This prevents the needle 7 from loosening and falling out during patient movement, ensuring that it remains inserted into the varicose vein.

[0043] Furthermore, the bottom of the injection needle has two pins 73. The docking device 4 has two chambers, with the two pins 73 corresponding to each other. Inside the docking device 4 are a blocking block 8, a vertical rod 82, and a long spring 83. An airbag 9 is mounted on the outside of the docking device 4. The airbag 9 is connected to a strip-shaped air ring 92, which cooperates with the long spring 83 to control the raising and lowering of the blocking block 8, thereby selectively controlling the connection between the injection needle 7 and the saline injection tube 45 or the hardener injection tube 44. This avoids additional contamination sources during the replacement process, which could lead to infection, and makes the operation easier and simpler.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sclerosant injection device for varicose veins, fixed to the varicose veins of the lower limbs, characterized by: The device comprises two positioning plates (1), the two positioning plates (1) are arranged in an upper and lower position, the left end of the positioning plate (1) is connected to a strap (2), the right end of the strap (2) is connected to a Velcro (22), the Velcro (22) is bonded to the right end of the strap (2), and the upper strap (2) is provided with a positioning hole (23), and the positioning hole (23) is aligned with the varicose vein. It also includes a docking device (4) and an injection needle (7). The upper end of the docking device (4) is docked and connected with the lower end of the injection needle (7). The injection needle (7) is aligned with the positioning hole (23) and inserted into the varicose vein. The left end of the upper positioning plate (1) is connected to a support rod (3). The right end of the support rod (3) is connected to a clamping assembly. The clamping assembly is used to fix the injection needle (7). The bottom of the docking device (4) is connected to a hardening agent injection tube (44) and a physiological saline injection tube (45). A cavity (41) is provided in the docking device (4), and a partition (42) is placed in the cavity (41). The partition (42) divides the cavity (41) into two chambers. An injection replacement component is provided in the chamber. The lower end of the injection needle (7) is connected to two plug posts (73), and the two plug posts (73) correspond to the two chambers one by one.

2. The sclerosant injection device for varicose veins according to claim 1, characterized in that: The injection replacement assembly includes a blocking block (8), a vertical rod (82), an air bag (9) and a strip air ring (92), wherein the vertical rod (82) is arranged vertically, and the upper end of the vertical rod (82) is connected to the top of the inner wall of the chamber, the blocking block (8) and the vertical rod (82) are slidably matched, the air bag (9) is placed on the side of the docking device (4), the strip air ring (92) is wrapped around the upper end of the vertical rod (82), and the lower end of the strip air ring (92) is connected to the blocking block (8), the air bag (9) and the strip air ring (92) are docked and connected, and the upper end of the blocking block (8) can be inserted into the plug column (73).

3. The sclerosant injection device for varicose veins according to claim 2, characterized in that: The side of the blocking block (8) is slidably engaged with the partition (42); an extension portion (81) is provided on the side of the blocking block (8) away from the partition (42); a vertical rod (82) is slidably engaged with the extension portion (81); a long spring (83) is connected to the lower end of the vertical rod (82); and an upper end of the long spring (83) is connected to the extension portion (81).

4. The sclerosant injection device for varicose veins according to claim 3, characterized in that: The top of the air bag (9) is connected to the air pipe (91), the lower end of the strip air ring (92) is connected to the extension part (81), and the upper end of the strip air ring (92) is connected to the air pipe (91).

5. The sclerosant injection device for varicose veins according to claim 4, characterized in that: The hardener injection tube (44) is connected to one of the chambers, and the physiological saline injection tube (45) is connected to the other chamber. A rubber membrane (43) is provided at the upper end of the docking device (4), and the plug (73) passes through the rubber membrane (43) and is inserted into the chamber.

6. The sclerosant injection device for varicose veins according to claim 5, characterized in that: The clamping assembly comprises two slide bars (5), a fixed block (51), two magnetic blocks (6), and a fixed bar (31). The left end of the slide bar (5) is connected to the support rod (3), and the right end of the slide bar (5) is connected to the fixed block (51). A protrusion (71) is connected to the center of the outer side of the injection needle (7), and the protrusion (71) is located between the two slide bars (5). The magnetic blocks (6) are slidably matched with the slide bars (5). The magnetic blocks (6) are symmetrically arranged on both sides of the injection needle (7). The left end of the fixed bar (31) is hinged to the right end of the support rod (3), and the right end of the fixed bar (31) is fixedly buckled with the fixed block (51).

7. The sclerosant injection device for varicose veins according to claim 6, characterized in that: The protrusion (71) is symmetrically connected to magnetic sheets (72) on both sides. The magnetic sheets (72) have the same magnetic pole as the magnetic block (6) on the opposite side. The magnetic block (6) is connected to a short spring (61) on the side away from the injection needle (7). One of the short springs (61) is connected to the right end of the support rod (3), and the other short spring (61) is connected to the fixed block (51).

8. The sclerosant injection device for varicose veins according to claim 7, characterized in that: The back of the positioning plate (1) is connected to a buckle block (11), and the Velcro (22) is provided with a plurality of buckle holes, through which the buckle block (11) can pass.

9. The sclerosing agent injection device for varicose veins according to claim 8, characterized in that: The side of the binding belt (2) is connected with a fixing ring (21), and the fixing ring (21) is used to fix the physiological saline injection tube (45).

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