Condensation device for penetrating through branch vein

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a coagulation device for penetrating through branch veins, which comprises a guide sheath component, a puncture needle component, an electrode accommodating device, a self-adaptive electrode component and a connecting cable, and is characterized in that the puncture needle component is detachably sleeved in the guide sheath component; the self-adaptive electrode assembly is detachably arranged in the puncture needle assembly in a sleeved mode, the self-adaptive electrode assembly is detachably arranged in the electrode containing device in a sleeved mode, the self-adaptive electrode assembly is detachably connected with the connecting cable, the guiding sheath assembly is used for blood return observation, and the puncture needle assembly is used for puncturing a focus part. The electrode storage device is used for storing the self-adaptive electrode assembly, the self-adaptive electrode assembly is used for generating ablation current, and the connecting cable is used for providing a power supply. The guide sheath assembly is arranged outside the puncture needle assembly, whether blood flows back in the sheath tube of the guide sheath assembly or not can be observed, it is determined that the puncture needle assembly successfully enters the blood vessel, and the risk of blood vessel puncture failure is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a coagulation device for penetrating branch veins. Background Art

[0002] Diseased or obstructed perforating veins may impair venous return, resulting in poor blood return to the lower extremity veins and increased venous pressure. Valvular incompetence in the perforating veins can also lead to venous reflux, in which blood from the deep veins flows back into the superficial veins through the perforating veins, further increasing the burden on the lower extremity veins. Long-term venous reflux and venous reflux are important causes of varicose veins in the lower extremities.

[0003] Currently, the primary treatment for perforating veins is radiofrequency therapy, which works based on the thermal effect of radiofrequency energy. During treatment, a probe is inserted into the vein to be treated and located at the site of the lesion. The high-frequency current generated by the radiofrequency generator is then transmitted via a connecting cable to bipolar electrodes. This generates heat around the electrodes, causing the vein wall to denature, contract, and eventually form fibrous cords, thereby sealing the vein.

[0004] Current radiofrequency treatment devices cannot identify blood return during needle puncture, and cannot further determine whether the puncture has reached a blood vessel, increasing operational risks. Utility Model Content

[0005] The purpose of the utility model is to provide a coagulation device for perforating branch veins to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the specific technical solution of the coagulation device for perforating veins of the present invention is as follows:

[0007] A coagulation device for penetrating a branch vein comprises a guide sheath assembly, a puncture needle assembly, an electrode receiving device, an adaptive electrode assembly and a connecting cable. The puncture needle assembly is detachably mounted in the guide sheath assembly, the adaptive electrode assembly is detachably mounted in the puncture needle assembly, the adaptive electrode assembly is detachably mounted in the electrode receiving device, the adaptive electrode assembly is detachably connected to the connecting cable, the guide sheath assembly is used for blood return observation, the puncture needle assembly is used for puncturing the lesion site, the electrode receiving device is used to receive the adaptive electrode assembly, the adaptive electrode assembly is used to generate ablation current, and the connecting cable is used to provide power.

[0008] Furthermore, the guide sheath assembly includes a sheath tube and a sheath tube seat, the sheath tube is fixedly connected to the sheath tube seat, and the bottom of the sheath tube seat is detachably connected to the puncture needle assembly.

[0009] Furthermore, the puncture needle assembly includes a puncture needle and a puncture needle seat, the puncture needle is fixedly connected to the puncture needle seat, the end of the puncture needle seat is detachably connected to the bottom of the sheath seat, and the tail of the puncture needle seat is detachably connected to the electrode receiving device.

[0010] Furthermore, the bottom edge of the sheath seat has symmetrically arranged protrusions, and the inner side of the end of the puncture needle seat has a snap-in groove. The protrusion at the bottom of the sheath seat is matched with the snap-in groove at the end of the puncture needle seat and is locked by rotation.

[0011] Furthermore, the electrode storage device includes a guide sleeve and a guide sleeve seat, the guide sleeve is fixedly connected to the guide sleeve seat, the end of the guide sleeve seat is detachably connected to the tail of the puncture needle seat, and the tail of the guide sleeve seat is detachably connected to the adaptive electrode assembly.

[0012] Furthermore, the guide sleeve has a diameter of 0.5-0.55 mm, and the outer tube wall has an insulating function.

[0013] Furthermore, the adaptive electrode assembly includes an expansion electrode, an electrode seat and a cable socket, the expansion electrode, electrode seat and cable socket are fixedly connected, the tail of the guide sleeve seat is detachably connected to the end of the electrode seat, and the cable socket is cooperatively connected to the connecting cable.

[0014] Furthermore, the working portion length L of the expandable electrode is 5-20 mm, the working portion width W is 2-4 mm, and the electrode diameter D is 0.2-0.4 mm, which is easy to be accommodated in the guide sleeve.

[0015] The utility model is a coagulation device for piercing a branch vein, which has the following advantages: the utility model is provided with a guide sheath assembly outside the puncture needle assembly, and after the puncture needle assembly and the base in the guide sheath assembly are locked by 90° rotation, puncture is performed according to the predetermined puncture site and angle. After the puncture is successful, the puncture needle assembly is rotated 90° to release the fit. At this time, it is possible to quickly observe whether there is blood reflux in the sheath of the guide sheath assembly. If there is blood reflux, it is determined that the puncture needle assembly has successfully entered the blood vessel, reducing the risk of failure in puncturing the blood vessel. After the guide sheath assembly and the puncture needle assembly are assembled, they can be easily inserted into the blood vessel. After the electrode receiving device and the adaptive electrode assembly are assembled, they can be easily placed in the blood vessel, and finally the connecting cable is inserted. There are no complex and sophisticated electronic devices inside the device. After the various components are assembled, they can be connected to the high-frequency electric knife for use. It is not easily affected by other equipment, has no other interference, and has high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded structural diagram of the coagulation device for perforating a branch vein of the present invention;

[0017] Figure 2This is a schematic structural diagram of the guide sheath assembly of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the sheath tube seat of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the puncture needle assembly of the present utility model;

[0020] Figure 5 This is a structural diagram of the puncture needle seat of the present utility model;

[0021] Figure 6 This is a structural diagram of the electrode storage device of the present utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the adaptive electrode assembly of the present utility model;

[0023] Figure 8 This is a schematic diagram of the cable socket structure of the present utility model;

[0024] Figure 9 This is a schematic diagram of the expansion electrode structure of the utility model;

[0025] Figure 10 This is a schematic diagram of the connection structure of the guide sheath assembly and the puncture needle assembly of the present invention;

[0026] Figure 11 This is a schematic diagram of the connection structure of the electrode storage device and the adaptive electrode assembly of the present invention;

[0027] Figure 12 This is a schematic diagram of the overall connection structure of the utility model;

[0028] Explanation of the marks in the figure: 1. Guide sheath assembly; 11. Sheath; 12. Sheath seat; 121. Raised portion; 2. Puncture needle assembly; 21. Puncture needle; 22. Puncture needle seat; 221. Snap-in slot; 3. Electrode storage device; 31. Guide cannula; 32. Guide cannula seat; 4. Adaptive electrode assembly; 41. Expansion electrode; 42. Electrode seat; 43. Cable socket; 5. Connecting cable. DETAILED DESCRIPTION

[0029] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of the coagulation device for perforating a branch vein of the present invention in conjunction with the accompanying drawings.

[0030] like Figure 1As shown, the utility model is a coagulation device for piercing a branch vein, comprising a guide sheath assembly 1, a puncture needle assembly 2, an electrode receiving device 3, an adaptive electrode assembly 4 and a connecting cable 5. The puncture needle assembly 2 is detachably mounted in the guide sheath assembly 1, the adaptive electrode assembly 4 is detachably mounted in the puncture needle assembly 2, the adaptive electrode assembly 4 is detachably mounted in the electrode receiving device 3, and the adaptive electrode assembly 4 is detachably connected to the connecting cable 5. The guide sheath assembly 1 is used for blood return observation, the puncture needle assembly 2 is used for puncturing the lesion site, the electrode receiving device 3 is used for receiving the adaptive electrode assembly 4, and the adaptive electrode assembly 4 is used for generating ablation current. The connecting cable 5 is used to provide power.

[0031] like Figure 2 Figure 3 As shown, the guide sheath assembly 1 includes a sheath tube 11 and a sheath tube seat 12. The sheath tube 11 and the sheath tube seat 12 are fixedly connected, such as by glue curing. The sheath tube 11 is made of a biocompatible polymer material. The bottom edge of the sheath tube seat 12 has symmetrically arranged protrusions 121 for removable engagement with the puncture needle assembly 2.

[0032] like Figure 4 Figure 5 As shown, the puncture needle assembly 2 includes a puncture needle 21 and a puncture needle holder 22. The puncture needle 21 and puncture needle holder 22 are fixedly connected, such as by glue curing or embedded injection molding. The puncture needle 21 can be an 18G gauge (needle diameter 1.2mm) with a tip angle of 15-20°, ensuring smooth venous puncture and reducing pain for the patient. The puncture needle is made of a highly biocompatible metal material, such as, but not limited to, stainless steel SUS30408 ​​(06Cr19Ni10). The inner side of the end of the puncture needle holder 22 has a snap-fit ​​groove 221. The raised portion 121 on the bottom of the sheath holder 12 mates with the snap-fit ​​groove 221 on the end of the puncture needle holder 22 and can be locked by rotating it a certain angle. The rear end of the puncture needle holder 22 is detachably connected to the electrode storage device 3.

[0033] like Figure 6 As shown, the electrode storage device 3 includes a guide sleeve 31 and a guide sleeve seat 32. The guide sleeve 31 and the guide sleeve seat 32 are fixedly connected, such as by glue curing. The guide sleeve 31 has a diameter of 0.5-0.55 mm, and the outer tube wall has an insulating function to prevent contact with the puncture needle assembly 2 during use and cause additional tissue damage. The guide sleeve 31 is made of a highly biocompatible metal material, which can be, but is not limited to, stainless steel SUS30408 ​​(06Cr19Ni10). The end of the guide sleeve seat 32 is removably connected to the rear end of the puncture needle seat 22, and the rear end of the guide sleeve seat 32 is removably connected to the adaptive electrode assembly 4.

[0034] like Figure 7 Figure 8 As shown, the adaptive electrode assembly 4 includes an expandable electrode 41, an electrode holder 42, and a cable jack 43. The expandable electrode 41, electrode holder 42, and cable jack 43 are fixedly connected, such as by glue curing, embedded injection molding, or soldering. The expandable electrode 41 is made of a highly biocompatible, elastic metal or alloy material, which may be, but is not limited to, nickel-titanium alloy (a shape memory alloy). The working portion length L of the expandable electrode 41 can be controlled between 5 and 20 mm, the working portion width W can be controlled between 2 and 4 mm, and the electrode diameter D is 0.2 to 0.4 mm, making it easily accommodated within the guide cannula 31. Pathological perforating veins can expand to 3.5 mm or even larger due to excessive blood reflux. Because the expandable electrode (2-4 mm width) is flexible and retractable, coagulation can be achieved within a 0-20 mm range within the vessel, improving vein closure efficiency. The electrode holder 42 is a knob-shaped design, and the tail of the guide cannula holder 32 removably snaps into the end 42 of the electrode holder. The cable socket 43 is made of conductive metal, and the metal material may be but is not limited to brass (H62). The cable socket 43 is connected to the connecting cable 5 .

[0035] like Figure 9-11 As shown, the steps of using the utility model are as follows:

[0036] a. Insert the puncture needle assembly 2 through the introducer sheath assembly 1. Turn the knob 90° to fully secure it. With the sheath 11 positioned at the end of the puncture needle 21 tip, insert the needle tip into the perforating vein. Once assembled, push the puncture needle assembly 2 out by turning the knob. Observe the introducer sheath assembly 1 for blood flow. If blood flow is normal, reassemble the puncture needle assembly 2.

[0037] b. Insert the adaptive electrode assembly 4 through the electrode receiving device 3, ensuring that the expandable electrode 41 is in the guide sleeve 31 and that the bases are not fixed by the knob.

[0038] c. To facilitate identification of each component, the bases of corresponding components are colored differently. After stowing the expandable electrode 41, insert it along the puncture needle assembly 2 into the perforating vein. Simultaneously, rotate the electrode holder of the adaptive electrode assembly 4 90° to secure it completely, allowing the expandable electrode to contact the vein wall. Due to its elasticity, the expandable electrode can adhere closely to the vein wall over a wide area.

[0039] d. Finally, connect the connecting cable 5 to the adaptive electrode assembly 4 and the high-frequency electrosurgical unit. The electrocoagulation mode of the high-frequency electrosurgical unit outputs power, expanding the electrodes to generate heat and coagulate the vein. After coagulation is complete, the guide sleeve seat of the storage device can be reversed and rotated.

[0040] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A coagulation device for perforating veins, characterized in that: The invention comprises a guide sheath assembly (1), a puncture needle assembly (2), an electrode receiving device (3), an adaptive electrode assembly (4) and a connecting cable (5), wherein the puncture needle assembly (2) is detachably mounted in the guide sheath assembly (1), the adaptive electrode assembly (4) is detachably mounted in the puncture needle assembly (2), the adaptive electrode assembly (4) is detachably mounted in the electrode receiving device (3), the adaptive electrode assembly (4) and the connecting cable (5) are detachably connected, the guide sheath assembly (1) is used for blood return observation, the puncture needle assembly (2) is used for puncturing the lesion site, the electrode receiving device (3) is used for receiving the adaptive electrode assembly (4), the adaptive electrode assembly (4) is used for generating ablation current, and the connecting cable (5) is used for providing power.

2. The coagulation device for perforating veins according to claim 1, characterized in that: The guide sheath assembly (1) comprises a sheath tube (11) and a sheath tube seat (12); the sheath tube (11) is fixedly connected to the sheath tube seat (12); and the bottom of the sheath tube seat (12) is detachably connected to the puncture needle assembly (2).

3. The coagulation device for perforating veins according to claim 2, characterized in that: The puncture needle assembly (2) comprises a puncture needle (21) and a puncture needle seat (22), wherein the puncture needle (21) is fixedly connected to the puncture needle seat (22), the end of the puncture needle seat (22) is detachably connected to the bottom of the sheath seat (12), and the tail of the puncture needle seat (22) is detachably connected to the electrode receiving device (3).

4. The coagulation device for perforating veins according to claim 3, characterized in that: The bottom edge of the sheath tube seat (12) has symmetrically arranged protrusions (121), and the inner side of the end of the puncture needle seat (22) has a snap-fit ​​groove (221). The protrusion (121) at the bottom of the sheath tube seat (12) is matched with the snap-fit ​​groove (221) at the end of the puncture needle seat (22) and is locked by rotation.

5. The coagulation device for perforating veins according to claim 3, characterized in that: The electrode storage device (3) comprises a guide sleeve (31) and a guide sleeve seat (32); the guide sleeve (31) and the guide sleeve seat (32) are fixedly connected; the end of the guide sleeve seat (32) is detachably connected to the tail of the puncture needle seat (22); and the tail of the guide sleeve seat (32) is detachably connected to the adaptive electrode assembly (4).

6. The coagulation device for perforating veins according to claim 5, characterized in that: The guide sleeve (31) has a diameter of 0.5-0.55 mm, and the outer tube wall has an insulating function.

7. The coagulation device for perforating veins according to claim 5, characterized in that: The adaptive electrode assembly (4) comprises an expansion electrode (41), an electrode seat (42) and a cable socket (43); the expansion electrode (41), the electrode seat (42) and the cable socket (43) are fixedly connected; the tail of the guide sleeve seat (32) is detachably connected to the end of the electrode seat (42); and the cable socket (43) is detachably connected to the connecting cable (5).

8. The coagulation device for perforating veins according to claim 7, characterized in that: The working portion length L of the expandable electrode (41) is 5-20 mm, the working portion width W is 2-4 mm, and the electrode diameter D is 0.2-0.4 mm, making it easy to be accommodated in the guide sleeve (31).

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