Electrocoagulation knife

Abstract

The utility model relates to an electrocoagulation knife which comprises a needle-shaped knife head, the needle-shaped knife head is fixedly inserted in the front section of an inner hole of a knife bar, an installation through hole is formed in the needle-shaped knife head, a visual catheter head is assembled in the installation through hole, and an insulator is fixedly arranged in the inner hole of the knife bar. A signal adapter in contact fit with the visible catheter head and a conductive head in contact fit with the needle-shaped cutter head are fixed in the insulator, the tail of the signal adapter is connected with a signal line, the tail of the conductive head is connected with an electric wire, and the signal line and the electric wire extend out of the rear end of the inner hole of the cutter bar. The installation through hole is formed in the needle-shaped scalpel head, the visual catheter head is assembled in the installation through hole, a doctor can observe the condition of an operation site through the visual catheter head, a basis is provided for an operation, and the doctor can perform the operation accurately.

Description

Technical Field

[0001] This utility model relates to an electrocoagulation knife for surgery, which belongs to the category of medical devices. Background Technology

[0002] An electrocoagulation scalpel works by using heat. When heated by electricity, it acts on human tissue to achieve surgical purposes such as resection and hemostasis. An electrocoagulation scalpel generally has a blade head mounted on a shank, which is connected to a power source via an electrical connection component. Chinese Patent Application No. 202221950376.5 discloses a novel electrocoagulation scalpel device, characterized by comprising a power supply assembly, an electrocoagulation scalpel main unit (1), an electrocoagulation scalpel (2), and an electrocoagulation scalpel holder (3). The electrocoagulation scalpel main unit (1) is connected to the power supply assembly, the electrocoagulation scalpel (2) is connected to the electrocoagulation scalpel main unit (1), and the electrocoagulation scalpel holder (3) is fitted over the electrocoagulation scalpel (2). This type of electrocoagulation scalpel lacks a visual structure, making it impossible to observe the specific situation at the surgical site. Doctors can only operate blindly, causing inconvenience to the surgery. Utility Model Content

[0003] The purpose of this invention is to provide an electrocoagulation knife to solve the problem that existing electrocoagulation knives lack a visible structure.

[0004] To solve the above problems, the electrocoagulation knife involved in this utility model adopts the following technical solution: An electrocoagulation knife includes a needle-shaped knife head and a knife rod. The knife rod is a hollow rod. The needle-shaped knife head has an installation through hole. A visual guide head is installed in the installation through hole. An insulator is fixed in the inner hole of the knife rod. A signal adapter that contacts and cooperates with the visual guide head and a conductive head that contacts and cooperates with the needle-shaped knife head are fixed in the insulator. A signal line is connected to the tail of the signal adapter, and an electric wire is connected to the tail of the conductive head. The signal line and the electric wire extend from the rear end of the inner hole of the knife rod.

[0005] The insulator is a soft rubber insulator.

[0006] The conductive head is ring-shaped and is embedded in the front end of the insulator. The conductive head protrudes from the front end face of the insulator or is flush with the front end face of the insulator.

[0007] The signal adapter is cylindrical and is embedded in the center of the front end of the insulator. The signal adapter protrudes from the front end face of the insulator or is flush with the front end face of the insulator.

[0008] The conductive head protrudes from the front end face of the insulator, and the signal adapter protrudes from the front end face of the insulator.

[0009] The needle-shaped cutter head is fixedly inserted into the front section of the inner hole of the cutter bar by a tight fit with the inner hole of the cutter bar.

[0010] The insulator is fixed in the inner hole of the tool bar by a snap ring.

[0011] The needle-shaped blade of this invention has an installation through hole, and a visual catheter head is installed in the installation through hole. Doctors can observe the condition of the surgical site through the visual catheter head, providing a basis for the surgery and enabling doctors to perform the surgery accurately.

[0012] In addition, the visual catheter head and signal adapter of this utility model are in contact and cooperate, and the needle-shaped blade head and conductive head are in contact and cooperate, which makes it easy to replace the needle-shaped blade head and the visual catheter head, and also makes it easy to disassemble and clean.

[0013] The conductive head of this invention is ring-shaped, and the signal adapter is column-shaped, embedded in the center of the front end of the insulator. When installing the needle-shaped blade and the visible guide head, no alignment work is required, and they can be installed arbitrarily. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 AA section view;

[0017] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0018] Figure 4 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0019] Figure 5 for Figure 2 A schematic diagram of the assembly of the insulator, signal adapter, and conductive head.

[0020] Figure 6 for Figure 3 Assembly diagram of the needle-shaped blade and the visual catheter tip. Detailed Implementation

[0021] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] The specific embodiments of the electrocoagulation knife involved in this utility model are as follows: Figures 1-6 In this device, the needle-shaped cutter head 1 has a central mounting hole 2. A visual guide head 3 is inserted into the mounting hole 2. The visual guide head 3 can be directly placed in the mounting hole 2, as its small weight and friction are sufficient to maintain its relative position with the needle-shaped cutter head 1. The cutter bar 4 has an inner hole 5, and the needle-shaped cutter head 1 is fixedly inserted into the front section of the inner hole of the cutter bar 4 by a tight fit. An insulator 7 is also fixedly installed in the inner hole of the cutter bar 4 by a retaining spring 6. The retaining spring is used to install a cylindrical component in the hole, which is a conventional installation method and will not be described in detail here. A conductive head 8 is embedded inward on the front end face of the insulator 7. The conductive head 8 is annular and protrudes from the front end face of the insulator 7. A signal adapter 9 is also embedded in the center of the insulator 7. The signal adapter 9 is cylindrical and protrudes from the front end face of the insulator 7. The insulator 7 here is a soft rubber insulator with a certain degree of elasticity. When the needle-shaped cutter head 1 is inserted into the inner hole 5 of the cutter bar 4, the visible guide head 3 contacts and engages with the signal adapter 9, and the needle-shaped cutter head 1 contacts and engages with the conductive head 8. The tail of the signal adapter 9 is connected to a signal line 10, and the tail of the conductive head 8 is connected to a wire 11. The front ends of the signal line 10 and the wire 11 enter the insulator 7 and are connected to the signal adapter 9 and the conductive head 8 respectively. The rear ends of the signal line 10 and the wire 11 protrude from the rear end of the inner hole of the cutter bar 4.

[0023] The insulator in the above embodiments is a soft rubber insulator, but in other embodiments it can also be an insulator made of other materials.

[0024] The conductive head in the above embodiment is ring-shaped, but it can also be other shapes in other embodiments, such as columnar. In this case, the needle-shaped cutting head needs to be aligned when installing it.

[0025] In the above embodiment, the conductive head protrudes from the front end face of the insulator; in other embodiments, it may be flush with the front end face of the insulator.

[0026] In the above embodiment, the signal adapter is cylindrical and protrudes from the front end face of the insulator. In other embodiments, it may be flush with the front end face of the insulator.

[0027] In the above embodiments, the needle-shaped cutter head is fixedly inserted into the front section of the inner hole of the cutter bar by a tight fit with the inner hole of the cutter bar. In other embodiments, it can also be connected by a threaded connection or a pin.

[0028] In the above embodiments, the insulator is fixed in the inner hole of the tool bar by a snap ring. In other embodiments, it can also be assembled by other fixing structures in the prior art.

[0029] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. An electrocautery knife, comprising a needle-shaped blade, characterized in that, The tool holder is a hollow rod with a mounting through hole inside the needle-shaped tool head. A visual guide head is installed inside the mounting through hole. An insulator is fixedly installed in the inner hole of the tool holder. A signal adapter that contacts and mates with the visual guide head and a conductive head that contacts and mates with the needle-shaped tool head are fixed inside the insulator. A signal line is connected to the tail of the signal adapter, and an electric wire is connected to the tail of the conductive head. The signal line and the electric wire extend out from the rear end of the inner hole of the tool holder.

2. The electrocoagulation knife according to claim 1, characterized in that, The insulator is a soft rubber insulator.

3. The electrocoagulation knife according to claim 2, characterized in that, The conductive head is ring-shaped and is embedded in the front end of the insulator. The conductive head protrudes from the front end face of the insulator or is flush with the front end face of the insulator.

4. The electrocoagulation knife according to claim 3, characterized in that, The signal adapter is cylindrical and is embedded in the center of the front end of the insulator. The signal adapter protrudes from the front end face of the insulator or is flush with the front end face of the insulator.

5. The electrocoagulation knife according to claim 4, characterized in that, The conductive head protrudes from the front end face of the insulator, and the signal adapter protrudes from the front end face of the insulator.

6. The electrocoagulation knife according to claim 4, characterized in that, The needle-shaped cutter head is fixedly inserted into the front section of the inner hole of the cutter bar by a tight fit with the inner hole of the cutter bar.

7. The electrocoagulation knife according to claim 6, characterized in that, The insulator is fixed in the inner hole of the tool bar by a snap ring.

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