阅读说明：本技术 一种用于静脉曲张微创治疗的单极电凝导管 (monopolar electric coagulation catheter for varicose vein minimally invasive treatment ) 是由 李昭辉 于 2019-10-15 设计创作，主要内容包括：本发明公开了涉及静脉曲张微创治疗领域的一种用于静脉曲张微创治疗的单极电凝导管,包括导管外壳,所述导管外壳的内部包裹有电凝导芯,电凝导芯充满导管外壳的内部并从导管外壳其中的一端端部延伸至导管外壳之外,电凝导芯位于导管外壳之外的部分固定连接有表面圆滑的电凝头,在所述导管外壳的外表面设有能够沿着导管外壳滑动的送管机构；通过送管组件的运送向患者体内有控制的匀速送入电凝导管的方式有效的控制穿管的力度与速度,降低术后并发症发生的概率。(The invention discloses a monopolar electrocoagulation catheter for varicose minimally invasive treatment, which relates to the field of varicose minimally invasive treatment and comprises a catheter shell, wherein an electrocoagulation guide core is wrapped in the catheter shell, the electrocoagulation guide core is filled in the catheter shell and extends out of the catheter shell from one end part of the catheter shell, the part of the electrocoagulation guide core, which is positioned outside the catheter shell, is fixedly connected with an electrocoagulation head with a smooth surface, and a tube delivery mechanism capable of sliding along the catheter shell is arranged on the outer surface of the catheter shell; the force and the speed of tube penetration are effectively controlled by a controlled mode of uniformly feeding the electrocoagulation catheter into the body of a patient through the delivery of the tube delivery assembly, and the probability of postoperative complications is reduced.)

1. The monopolar electrocoagulation catheter for minimally invasive varicosity treatment is characterized by comprising a catheter shell (1), wherein an electrocoagulation guide core (2) is wrapped in the catheter shell (1), the electrocoagulation guide core (2) is filled in the catheter shell (1) and extends out of the catheter shell (1) from one end of the catheter shell (1), a smooth-surfaced electrocoagulation head (8) is fixedly connected to the part, located out of the catheter shell (1), of the electrocoagulation guide core (2), and a tube delivery mechanism (5) capable of sliding along the catheter shell (1) is arranged on the outer surface of the catheter shell (1).

2. the monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 1, wherein the tube delivery mechanism (5) comprises a mechanism housing (504), the catheter housing (1) penetrates through two opposite side walls of the mechanism housing (504), a pressing plate (501) is arranged above the mechanism housing (504), a push rod (502) is fixedly connected to the lower surface of the pressing plate (501), the push rod (502) penetrates through the top wall of the mechanism housing (504) and extends into the mechanism housing (504), a plurality of power wheels (506) are arranged in the mechanism housing (504), the power wheels (506) are positioned above the catheter housing (1), upper connecting rods (507) are arranged between the power wheels (506), the power wheels (506) are connected through the upper connecting rods (507), the upper connecting rods (507) are fixedly connected with the push rod (502), a reset assembly capable of lifting the upper connecting rods (507) is arranged between the mechanism housing (504) and the power wheels (506), a bearing component for supporting the conduit shell (1) is arranged below the conduit shell (1).

3. The monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 2, wherein the reset assembly comprises a reset plate (505), the reset plate (505) is positioned between the upper connecting rod (507) and the top wall of the mechanism housing (504), the push rod (502) penetrates through the reset plate (505) and is fixedly connected with the reset plate (505), and a reset tension spring (503) is fixedly connected between the reset plate (505) and the top wall of the mechanism housing (504).

4. the monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 2, wherein the receiving assembly comprises a plurality of auxiliary wheels (508), the auxiliary wheels (508) are positioned below the catheter housing (1) and are respectively contacted with the bottom of the catheter housing (1) and the mechanism housing (504), lower connecting rods (509) are arranged between the auxiliary wheels (508), and the auxiliary wheels (508) are connected through the lower connecting rods (509).

5. the monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 1, characterized in that the end of the catheter housing (1) opposite to one end of the electrocoagulation head (8) is provided with an adjusting component (4), the adjusting component (4) is fixed on the outer surface of the catheter housing (1) and penetrates through the catheter housing (1) to be connected with the electrocoagulation core (2), and the length of the electrocoagulation core (2) extending out of the free end of the catheter housing (1) can be adjusted through the adjusting component (4).

6. A monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 5, the electric coagulation catheter is characterized in that the adjusting assembly (4) comprises an adjusting shell (403) fixedly connected with the catheter shell (1), a knob (401) is arranged above the adjusting shell (403), a rotating shaft (402) is fixedly connected with the lower portion of the knob (401), the rotating shaft (402) penetrates through the adjusting shell (403) and extends to the inside of the adjusting shell (403), a horizontal gear (404) is fixedly connected with the lower portion of the rotating shaft (402), an opening is formed in the upper surface of the catheter shell (1) located in the adjusting shell (403), adjusting teeth (3) are arranged on the surface of an electric coagulation guide core (2) at the position of the opening, adjusting gears (405) are arranged between the adjusting teeth (3) and the horizontal gear (404), the adjusting gears (405) and the adjusting teeth (3) are meshed in sequence.

7. The monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 5, wherein the diameter of the end, close to the catheter housing (1), of the electrocoagulation head (8) is smaller, the diameter of the end, far away from the catheter housing (1), of the electrocoagulation head (8) is larger, the diameter of the section of the electrocoagulation head (8) is uniformly increased from the smaller diameter end to the larger diameter end, an expansion assembly (6) is arranged between the free end of the catheter housing (1) and the electrocoagulation head (8), the expansion assembly (6) can be expanded under the movement of the electrocoagulation head (8), a blocking ring (7) is arranged at the larger diameter end of the electrocoagulation head (8), and the blocking ring (7) is fixed on the outer surface of the electrocoagulation head (8).

8. The monopolar electrocoagulation catheter for minimally invasive treatment of varicose veins according to claim 7, wherein the expansion assembly (6) comprises a plurality of arc-shaped expansion plates (601) and a rebound tension spring (602), and adjacent expansion plates (601) are fixedly connected through the rebound tension spring (602).

Technical Field

The invention relates to the field of varicose vein minimally invasive treatment, in particular to a monopolar electrocoagulation catheter for varicose vein minimally invasive treatment.

background

Varicose vein of lower limb is a common disease in vascular surgery, and the varicose vein refers to varicose vein and expansion caused by factors such as blood stasis and weak vein wall, and the varicose vein of lower limb is caused by many reasons, most commonly, simple varicose vein of lower limb is superficial varicose vein of lower limb, and the main disease is insufficiency of the saphenous femoral vein valve. Another important cause is primary deep vein valvular insufficiency (PDVI), which often involves the dysfunction of the great saphenous vein valve and often shows the tortuous expansion of the superficial vein. In addition, in the lower limb deep vein postthrombosis syndrome, shallow vein compensatory circuitous dilatation occurs due to unsmooth deep vein reflux; lower limb arteriovenous fistula and venous malformation bone hypertrophy syndrome can also have the expression of lower limb superficial varicosity; obstruction of inferior vena cava reflux, such as bulgarian syndrome, can also lead to varicose veins in the lower extremities.

For varicose veins of lower limbs, the current treatment modes are mainly divided into three types of compression treatment, drug treatment and operation treatment, the traditional operation is major saphenous vein stripping operation, when the traditional operation is carried out, a plurality of incisions are needed to be made on the skin of the lower limb, the great saphenous vein is extracted by the stripper one section by one section, the postoperative pain is obvious, a lot of patients can not walk on the ground due to the postoperative pain for two or three days, and a large number of scars are always left after the operation, the traditional operation is easy to infect after the operation, therefore, the traditional operation is generally replaced by the minimally invasive operation, and the minimally invasive operation is widely applied by adopting a thermal ablation technology for treatment, wherein the thermal ablation technology mainly comprises laser, microwave and radio frequency, these thermal ablation methods, which achieve the purpose of sealing the blood vessel by destroying the blood vessel, are also power consuming and less effective than the electrocoagulation treatment methods.

Although the mode of electrocoagulation treatment has better effect, electrocoagulation treatment is not widely applied to varicose veins at present, and corresponding mature products are rare, when the existing equipment adopts electrocoagulation to treat varicose veins, an electrocoagulation catheter is adopted to electrocautery veins, and the veins after electrocautery shrink, so as to achieve the purpose of treating varicose veins, the diameter of the end part of the electrocoagulation catheter is mostly smaller than the inner diameter of a venous blood vessel because the electrocoagulation catheter needs to be inserted into the venous blood vessel at present, the electrocoagulation catheter often cannot fully and effectively contact the venous wall, so that the electrocautery effect is reduced, and the mode of inserting the catheter in operation mainly depends on manual catheter delivery of medical staff, but because the quality of the medical staff is uneven, doctors with insufficient experience in the process of catheter delivery are easy to damage the human body of patients because of controlling the strength and the speed of the catheter delivery, and some of the doctors are difficult to find out in the operation, some complications can be generated after operation, rehabilitation is needed if the complications are happened, and operation needs to be performed again if the complications are happened, so that the problem to be solved in the field of minimally invasive varicose vein treatment is solved by effectively controlling the tube penetrating strength and speed in view of the immature part of the existing equipment for performing electrocoagulation treatment.

Disclosure of Invention

The invention aims to overcome the defect that the force and the speed of tube penetration cannot be effectively controlled due to insufficient tube penetration experience of part of medical staff when the electrocoagulation catheter is adopted for operation in the prior art, and provides a monopolar electrocoagulation catheter for varicose vein minimally invasive treatment.

The purpose of the invention is mainly realized by the following technical scheme:

A monopolar electrocoagulation catheter for varicose vein minimally invasive treatment comprises a catheter shell, wherein an electrocoagulation guide core is wrapped in the catheter shell, the electrocoagulation guide core is filled in the catheter shell and extends out of the catheter shell from one end of the catheter shell, a part, located outside the catheter shell, of the electrocoagulation guide core is fixedly connected with an electrocoagulation head with a smooth surface, and a tube delivery mechanism capable of sliding along the catheter shell is arranged on the outer surface of the catheter shell.

drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a top view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a schematic view of the adjusting assembly of the present invention;

FIG. 4 is a schematic view of the stent assembly of the present invention;

FIG. 5 is a schematic view of a power wheel connection structure according to the present invention;

FIG. 6 is a schematic view of the upper/lower connecting rod structure of the present invention;

1-a guide tube shell, 2-an electrocoagulation guide core, 3-an adjusting tooth, 4-an adjusting component, 5-a tube feeding mechanism, 6-an expanding component, 7-a blocking ring, 8-an electrocoagulation head, 9-a power mechanism, 401-a knob, 402-a rotating shaft, 403-an adjusting shell, 404-a horizontal gear, 405-an adjusting gear, 501-a pressing plate, 502-a push rod, 503-a reset tension spring, 504-a mechanism shell, 505-a reset plate, 506-a power wheel, 507-an upper connecting rod, 508-an auxiliary wheel, 509-a lower connecting rod, 601-an expanding plate and 602-a rebound tension spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.