CN105943157B - A kind of vein ablation needle - Google Patents

Abstract

The invention provides a vein ablation needle and relates to the technical field of medical instruments. The vein ablation needle includes a fixed seat, an electrode plate, an electrocoagulation needle and a connecting wire; the electrode plate is fixedly installed in the fixed seat, one end of the electrocoagulation needle is connected to the electrode plate, and the other end is connected The outer side of the seat extends for electrocoagulation and ablation of the affected area; one end of the connecting wire is connected to the electrode plate, and the other end extends to the outer side of the fixed seat for connecting to the host of the vein ablation apparatus. In the vein ablation needle of the present invention, an electrode plate is arranged in the fixed seat, one end of the electrode plate is connected to the electrocoagulation needle, and the other end is electrically connected to the host of the vein ablation instrument through a connecting wire, which facilitates the electrocoagulation operation of the medical staff holding the electrocoagulation needle with one hand , not only can ablate the subordinate and communicating branches of varicose veins, but also ablate malformed blood vessels and hemangiomas.

Description

a vein ablation needle

technical field

The invention relates to the technical field of medical devices, in particular to a vein ablation needle.

Background technique

Varicose veins is a common venous disease, which refers to the tortuous and dilated veins caused by factors such as blood stasis and weak venous walls. Varicose veins can occur in multiple parts of the human body. For example, hemorrhoids are actually a type of varicose veins. Clinically visible varicose veins include esophageal and gastric fundus, varicocele, and abdominal wall varicose veins. The most common site of varicose veins is the lower extremities. According to medical statistics, 8.8% to 10% of the adult population suffers from obvious varicose veins. It is worth emphasizing that as the disease progresses, most patients develop stasis dermatitis, superficial thrombophlebitis, hemorrhage, and skin ulceration, which seriously affect the physical and mental health of patients and even become disabled.

Surgery is the fundamental method for the treatment of varicose veins of the lower extremities. The traditional surgical method is high ligation and stripping of the great saphenous vein. In recent years, surgical treatment methods such as translucent direct vision atherectomy, laser closure, radiofrequency ablation closure, and laparoscopic communicating branch have emerged. However, these methods are costly and have a high recurrence rate.

High-frequency ablation is an important part of this procedure. Due to the differences in individual conditions of patients during the operation, the high-frequency needle power, moving speed and skin temperature are only controlled by the operator's experience, and there are no objective indicators to measure. After changing the operator, it is easy to cause skin burns or incomplete treatment, which is not conducive to large-scale promotion. Moreover, the design of the ablation needle in the traditional vein ablation instrument is relatively rough. The existing ablation needle has a longer end and a thicker diameter. Relatively bulky and expensive for patients, it is not conducive to large-scale promotion.

Contents of the invention

The object of the present invention is to provide a venous ablation needle to solve the problems of complicated and cumbersome operation, high cost and unfavorable wide-scale popularization of the venous ablation device in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A venous ablation needle provided by the present invention includes a fixing seat, an electrode plate, an electrocoagulation needle and a connecting wire; the electrode plate is fixedly installed in the fixing seat, and one end of the electrocoagulation needle is connected to the electrode plate, The other end extends to the outside of the fixing seat for electrocoagulation ablation of the affected area; one end of the connecting wire is connected to the electrode plate, and the other end extends to the outside of the fixing seat for connecting to the host of the vein ablation apparatus.

Further, the venous ablation needle also includes a protective sheath; the protective sheath is fixed on the fixing seat and sleeved on the outside of the electrocoagulation needle. The technical effect of this technical solution is: first, the protective sheath can improve the fixing effect of the electrocoagulation needle and maintain the shape of the electrocoagulation needle; secondly, it prevents the excessive surface area of the electrocoagulation needle from contacting the patient's skin; Hold and avoid unnecessary contact. Fourth, the action point of the electrocoagulation needle is more concentrated and the efficiency of the operation is improved. The medical staff can precisely operate the electrocoagulation needle by holding the fixed seat.

Further, the venous ablation needle further includes a temperature probe, which is built into the protective sheath and electrically connected to the connecting wire for measuring the skin temperature of the affected area. The technical effect of this technical solution is: the temperature probe is used to measure the skin temperature at the electrocoagulation blood vessel with the advancement of the electrocoagulation needle, and transmit the temperature information to the host of the vein ablation instrument in time, and the host will start when the skin temperature is too high The protection program stops the power output of the coagulation needle to protect the patient's skin from burns.

Further, the electrocoagulation needle is provided with a hollow through cavity, and the inside of the fixed seat is provided with a blood return device, and the blood return device communicates with the through cavity, and it is possible to observe the flow of blood from the electrocoagulation needle into the Describe the blood return device. The technical effect of this technical solution is that: a hollow through cavity is set on the electrocoagulation needle. When the electrocoagulation needle correctly penetrates the blood vessel to be ablated by electrocoagulation, the blood flows from the blood vessel into the through cavity due to the pressure of the blood vessel. The blood return device connected through the cavity can detect blood return in time, which is beneficial for medical staff to grasp the effect of puncture and electrocoagulation.

Further, the venous ablation needle also includes a flusher and a catheter, the flusher communicates with the blood return device through the catheter; the flusher is used to contain cleaning liquid. The technical effect of this technical solution is: when the electrocoagulation is finished, the blood return device is flushed with the irrigator and the catheter, which is convenient for the electrocoagulation needle to puncture the electrocoagulation again or arrange and pack the ablation needle after the electrocoagulation is completed.

Further, the material of the electrocoagulation needle is metal fiber. The technical effect of this technical solution is that compared with organic and inorganic fibers, the metal fiber has good electric conduction, heat conduction, magnetic conduction, high temperature resistance, self-lubricating property and sintering property, and the manufacturing method is relatively simple and the cost is cheap. And because the temperature of the electrocoagulation needle changes frequently during use, compared with the metal material, the electrocoagulation needle made of metal fiber is more durable and safe.

Further, the length of the electrocoagulation needle is 10-15 cm. The technical effect of this technical solution is that the electrocoagulation needle with a length of 10-15 centimeters not only meets the needs of the operation, but also prevents the electrocoagulation needle from being too long to affect the operation.

Further, the vein ablation needle also includes a switch and a power adjustment button arranged on the fixed seat, the switch is used to connect or disconnect the connection between the electrode plate and the host of the vein ablation instrument; the power adjustment button The power of the electrocoagulation needle can be adjusted. The technical effect of this technical solution is that: the switch on the host of the vein ablation instrument can control the power supply of the electrocoagulation operation, and the switch arranged on the fixed seat is convenient for the medical staff to start and stop the electrocoagulation operation conveniently during the operation electrocoagulation process; The adjustment button is used to adjust the coagulation power required for the operation.

The beneficial effects of the present invention are: an electrode plate is arranged in the fixed seat, one end of the electrode plate is connected to the electrocoagulation needle, and the other end is electrically connected to the host of the vein ablation instrument through a connecting wire, which facilitates the electrocoagulation operation for the medical staff with one-handed electrocoagulation needle , not only can endoluminal ablation of the great saphenous vein above the knee, but also treat hemangiomas in the subordinate and communicating branches.

Description of drawings

In order to more clearly illustrate the technical solutions of the specific embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments. Apparently, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of the vein ablation needle provided by the present invention.

Reference signs:

1-fixing seat; 2-electrode plate; 3-electrocoagulation needle;

4-connection wire; 5-protective sheath; 6-temperature probe;

7-blood return device; 8-irrigator; 9-catheter;

10-switch; 11-power adjustment button.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

This embodiment provides a vein ablation needle, wherein: FIG. 1 is a schematic structural diagram of the vein ablation needle provided by the present invention. As shown in FIG. 1 , the main structure of the vein ablation needle includes a fixing seat 1 , an electrode plate 2 , an electrocoagulation needle 3 and a connecting wire 4 . Specifically, the electrode plate 2 is fixedly installed in the fixed seat 1, one end of the electrocoagulation needle 3 is connected to the electrode plate 2, and the other end extends to the outside of the fixed seat 1; one end of the connecting wire 4 is connected to the electrode plate 2, and the other end is connected to the fixed seat 1, which is used to connect to the host of the vein ablation instrument.

Varicose veins is a common venous disease, which refers to the tortuous and dilated veins caused by factors such as blood stasis and weak venous walls. Surgery is the fundamental method to treat varicose veins of the lower extremities. The traditional surgical method is high ligation and stripping of the great saphenous vein. In recent years, surgical treatment methods such as translucent direct vision atherectomy, laser closure, radiofrequency ablation and closure, and laparoscopic communicating branches have also appeared. However, these methods are costly and have a high recurrence rate. High-frequency ablation is an important part of this procedure. Due to the differences in individual conditions of patients during the operation, the high-frequency needle power, moving speed and skin temperature are only controlled by the operator's experience, and there are no objective indicators to measure. After changing the operator, it is easy to cause skin burns or incomplete treatment, which is not conducive to large-scale promotion. Moreover, the design of the ablation needle in the traditional vein ablation instrument is relatively rough. The existing ablation needle has a longer end and a thicker diameter. Relatively bulky and expensive for patients, it is not conducive to large-scale promotion. In the vein ablation needle of this embodiment, an electrode plate 2 is arranged in the fixed seat 1, and one end of the electrode plate 2 is connected to the electrocoagulation needle 3, and the other end is electrically connected to the host computer of the vein ablation instrument through the connection line 4, which is convenient for medical staff to hold the electrocoagulation needle with one hand. Coagulation needle 3 performs electrocoagulation operation, not only can perform intracavitary ablation on the great saphenous vein above the knee, but also can treat hemangiomas in the subordinate and communicating branches.

In an optional solution of this embodiment, as shown in FIG. 1 , further, the vein ablation needle is further provided with a protective sheath 5 . Specifically, the protective sheath 5 is sleeved on the outside of the electrocoagulation needle 3 and is fixedly installed on the fixing base 1 . In this embodiment, the protective sheath 5 can firstly improve the fixing effect of the electrocoagulation needle 3 and keep the shape of the electrocoagulation needle 3; secondly, prevent the excessive surface area of the electrocoagulation needle 3 from contacting the patient's skin; Hold it by hand to avoid unnecessary contact, and fourthly make the action point of the electrocoagulation needle 3 more concentrated and improve the efficiency of the operation. At the same time, the medical staff can precisely operate the electrocoagulation needle 3 by holding the fixing seat 1 .

In an optional solution of this embodiment, as shown in FIG. 1 , further, the venous ablation needle further includes a temperature probe 6 , which is arranged in the protective sheath 5 and is electrically connected to the connection wire 4 . In this embodiment, the temperature probe 6 is used to measure the skin temperature at the electrocoagulation blood vessel at all times along with the advancement of the electrocoagulation needle 3, and transmit the temperature information to the host of the vein ablation instrument in time. When the skin temperature is too high, the host Start the protection program, stop the power output of the electrocoagulation needle 3, and protect the patient's skin from burns.

In the optional solution of this embodiment, as shown in Figure 1, further, the electrocoagulation needle 3 is provided with a hollow through cavity, and the inside of the fixing seat 1 is provided with a blood return device 7, and the blood return device 7 and the through cavity Connected, a transparent window is set on the side wall of the blood return device 7, and the blood flowing from the electrocoagulation needle 3 into the blood return device 7 can be observed. In this embodiment, a hollow through cavity is provided on the electrocoagulation needle 3. When the electrocoagulation needle 3 is correctly inserted into the blood vessel to be ablated by electrocoagulation, the blood flows from the blood vessel into the through hole due to the pressure of the blood vessel. The blood return device 7 connected through the cavity can detect blood return in time, which is beneficial for medical staff to grasp the effects of puncture and electrocoagulation.

In an optional solution of this embodiment, as shown in FIG. 1 , further, the vein ablation needle further includes a flusher 8 and a catheter 9 . Specifically, the flushing device 8 communicates with the blood return device 7 through a conduit 9; the flushing device 8 is used to contain cleaning liquid. In this embodiment, when the electrocoagulation is finished, the blood return device 7 is flushed with the cleaning liquid in the flusher 8, so as to facilitate re-puncturing the electrocoagulation or finishing and packaging the ablation needle after the electrocoagulation is completed.

In an optional solution of this embodiment, further, the material of the electrocoagulation needle 3 is metal fiber. Wherein, the electrocoagulation needle 3 can also be made of silver, stainless steel and other metal materials. In this embodiment, compared with organic and inorganic fibers, metal fibers have good electrical conductivity, thermal conductivity, magnetic conductivity, high temperature resistance, self-lubrication and sintering properties, and the manufacturing method is simpler and the cost is lower. And because the temperature of the electrocoagulation needle 3 changes frequently during use, the electrocoagulation needle 3 made of metal fiber is more durable and safer than metal materials such as silver and stainless steel.

In an optional solution of this embodiment, as shown in FIG. 1 , further, the length of the electrocoagulation needle 3 is 10-15 cm. In this embodiment, the electrocoagulation needle 3 with a length of 10-15 centimeters not only meets the requirements of the operation, but also does not affect the operation due to the length of the electrocoagulation needle 3 being too long.

In an optional solution of this embodiment, as shown in FIG. 1 , further, the vein ablation needle further includes a switch 10 and a power adjustment button 11 arranged on the fixing base 1 . Among them, the switch 10 is used to connect or disconnect the connection between the electrode plate 2 and the main body of the vein ablation instrument, and the power adjustment button 11 can adjust the power of the electrocoagulation needle 3 . In this embodiment, the power switch on the main body of the vein ablation instrument can control the power supply of the electrocoagulation operation, and the switch 10 arranged on the fixed seat 1 is convenient for the medical staff to start or stop the electrocoagulation during the operation electrocoagulation process. Surgery; the power adjustment button 11 is used to adjust the electrocoagulation power required for the operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (7)

1. A venous ablation needle, characterized in that, comprises a fixed seat, an electrode plate, an electrocoagulation needle and a connecting wire; The electrode plate is fixedly installed in the fixing seat, one end of the electrocoagulation needle is connected to the electrode plate, and the other end extends to the outside of the fixing seat for electrocoagulation and ablation of the affected part; One end of the connecting wire is connected to the electrode plate, and the other end extends to the outside of the fixing seat for connecting to the host of the vein ablation instrument; The electrocoagulation needle is provided with a hollow through cavity, and the inside of the fixed seat is provided with a blood return device, and the blood return device communicates with the through cavity, so that the blood flowing from the electrocoagulation needle into the return can be observed. blood vessel. 2. The venous ablation needle according to claim 1, further comprising a protective sheath; The protective sheath is fixed on the fixing seat and sleeved on the outside of the electrocoagulation needle. 3 . The venous ablation needle according to claim 2 , further comprising a temperature probe, the temperature probe is built into the protective sheath and electrically connected to the connection wire for measuring the skin temperature of the affected area. 4 . 4 . The venous ablation needle according to claim 1 , further comprising a flusher and a conduit, the flusher communicates with the blood return device through the conduit; the flusher is used to contain cleaning liquid. 5. The venous ablation needle according to claim 1, wherein the electrocoagulation needle is made of metal fiber. 6. The vein ablation needle according to claim 5, characterized in that the length of the electrocoagulation needle is 10-15 cm. 7. The venous ablation needle according to any one of claims 1 to 6, further comprising a switch and a power adjustment button arranged on the fixed seat, the switch is used to turn on or off the The connection between the electrode plate and the host of the vein ablation instrument; the power adjustment button can adjust the power of the electrocoagulation needle.