CN212853618U

CN212853618U - Electrosurgical instrument with angle-adjustable actuator

Info

Publication number: CN212853618U
Application number: CN202020438694.8U
Authority: CN
Inventors: 李枝东; 马秀峰; 张宇
Original assignee: SHANGHAI YISI MEDICAL TECHNOLOGY CO LTD
Current assignee: SHANGHAI YISI MEDICAL TECHNOLOGY CO LTD
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-04-02
Anticipated expiration: 2030-03-30

Abstract

The utility model provides an electro surgery apparatus of executor angularly adjustable, includes executor, switch, grab handle, wherein electro surgery apparatus is still including connecting the executor with the angle direction adjusting device of grab handle, angle direction adjusting device has the structure that can change executor and grab handle contained angle under the exogenic action and makes executor angular direction adjustable, and this structure has certain holding power simultaneously, can bear the contact force between tool bit and the human tissue and indeformable when the operation. The utility model provides an electrosurgical instrument makes the doctor conveniently adjust the angle of executor in the operation, is favorable to the operation more.

Description

Electrosurgical instrument with angle-adjustable actuator

Technical Field

The utility model relates to an electrosurgical instrument, concretely relates to executor angularly adjustable electrosurgical instrument.

Background

High frequency electrosurgical instruments are surgical instruments used for electrocoagulation hemostasis and/or cutting tissue during surgical procedures, and are largely classified into monopolar instruments and bipolar instruments. The high-frequency current is transmitted to the tissue by an actuator contacted with the tissue, and then returns to the high-frequency energy generator by a neutral electrode adhered to the surface of the human body. The high frequency current heats the tissue to create a cutting or coagulating effect at the local contact of the electrosurgical instrument with the tissue.

Fig. 1 shows the structure of an electrosurgical instrument, including an actuator 1A, a manual switch 2A, a plastic grip 3A, a cable 4A, and a plug 5A. Existing electrosurgical instrument actuators are of a fixed shape, generally straight, as shown in fig. 2. In order to accommodate the needs of certain procedures, some manufacturers have also introduced curved actuators, as shown in fig. 3. According to investigation, in actual clinical operation, some doctors can directly bend the fixed-shape actuator to the required angle to perform the operation. For example, in an open operation of thoracic surgery, if an operation site is located in deep tissue of a thoracic cavity, an operation space is narrow, an operable holding posture of a doctor is limited, and an actuator with a fixed shape cannot conveniently operate tissue of the operation site, at this time, the doctor often bends an actuator of an electrosurgical instrument for use. However, whether they are straight or curved actuators, their angle is not adjustable. In some operations, in order to be more beneficial to the operation, a doctor often needs to deflect the actuator to different angles, and the existing actuator with a fixed shape cannot adapt to the requirements of different operations to adjust the deflection angle of the actuator, so that the use in the operations is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that the electrosurgical instrument executor of current fixed shape can not adapt to the needs of some operations on the market, provide an executor angularly adjustable electrosurgical instrument, it includes: the electrosurgical instrument comprises an actuator, a switch and a grab handle, and further comprises an angle direction adjusting device connected with the actuator and the grab handle, wherein the angle direction adjusting device is provided with a structure capable of changing an included angle between the actuator and the grab handle under the action of external force so as to enable the angle direction of the actuator to be adjustable, and the structure simultaneously has certain supporting force and can bear cutting force applied to the actuator within a certain range without deformation.

The utility model discloses further set up to: the angle-adjustable electrosurgical instrument comprises an actuator, the actuator further comprises a cutter head, and the angle direction adjusting device enables the angle direction of the cutter head of the actuator to be adjustable.

The utility model discloses further set up to: the angle direction adjusting device is a shaping hose which can be freely bent and keep the shape of the hose, so that the angle direction of the actuator and the grab handle can be adjusted under the action of external force, and the cutting force in a certain range can be borne at the angle.

The utility model discloses further set up to: the shaping hose is connected with the cutter head, the shaping hose is a metal shaping hose, and the outer surface of the metal shaping hose is coated with a layer of insulating material.

The utility model discloses further set up to: the actuator also comprises a metal rod, one end of the metal rod is connected with the shaping hose, and the other end of the metal rod is connected with the grab handle; the outer surface of the metal rod is coated with an insulating material.

The utility model discloses further set up to: the shaped hose comprises a spring and a convoluted support, the spring and the convoluted support forming a metal shaped hose.

The utility model discloses further set up to: the shaping hose further comprises an insulating layer which is coated outside the convoluted supporting piece.

The utility model discloses further set up to: the angle direction adjusting device is a metal ball joint, wherein the ball head of the metal ball joint can rotate for a certain angle in a ball socket along a certain direction of space under the condition of applying a certain acting force, so that the angle direction of the actuator can be adjusted.

The utility model discloses further set up to: one end of the metal ball joint is connected with the cutter head and is coated in the flexible insulating pipe, and the flexible insulating pipe can deform along with the rotation of the ball joint.

The utility model discloses further set up to: the actuator further comprises a metal mounting rod, and the metal mounting rod is used for mounting the metal ball joint and the flexible insulating tube coated outside the metal ball joint on the insulating grab handle, so that the tool bit is electrically connected with the grab handle.

The utility model discloses further set up to: the tool bit is connected with the ball head of the ball joint, and the metal mounting rod is connected with the ball socket of the metal ball joint.

The utility model discloses further set up to: the tool bit is connected with a ball socket of the metal ball joint, and the metal mounting rod is connected with a ball head of the metal ball joint.

The utility model discloses further set up to: the electrosurgical instrument is an electrosurgical pencil, and the actuator is an electrode tip.

The electrosurgical instrument with the structure has a simple structure, a doctor can conveniently adjust the angle of the actuator in an operation, the operation is more facilitated, and the operation can be completed more efficiently.

Drawings

FIG. 1 is a schematic view of a prior art electrosurgical instrument;

FIG. 2 is a prior art linear actuator;

FIG. 3 is a prior art bend actuator;

fig. 4 is a schematic structural diagram of an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of the shaped hose of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;

fig. 7 is a schematic structural view of the actuator with a ball joint of the present invention.

Detailed Description

Example one

As shown in fig. 4, the electrosurgical instrument is composed of an actuator 1, a manual switch 2, an insulating grip 3, a cable 4, and a plug 5. The plug 5 is inserted into the high-frequency energy generator, receives the electric energy generated by the high-frequency energy generator, and transmits the electric energy to the actuator 1 through the cable 4, and the manual switch 2 controls the on-off of the electric energy. The actuator 1, the manual switch 2 and the cable 4 are all arranged on the plastic handle 3, and meanwhile, the insulating handle 3 is also a handheld part of a doctor during operation.

The actuator 1 consists of a tool bit 11, a shaping hose 12 and a rubber-coated metal rod 13. The cutting head 11 is generally made of stainless steel material, and can also be made of other conductive metal materials with biocompatibility. The cutting head 11 is used as a conductive electrode to cut and coagulate human tissue in surgery, and the surface shape thereof may be different shapes such as needle, hook, ring, sphere, sheet, blade, etc. according to the surgery. The cutting head 11 is connected with the shaping hose 12, and comprises physical connection and electrical connection. The physical connection mode can adopt fixed connection modes such as welding, riveting, bonding, clamping and the like; the electrical connection can be made directly by contact between the metals or by wire connection inside the hollow of the shaped hose. One end of the metal rubber-coated rod 13 is connected with the plastic grab handle 3 in a physical connection mode and an electrical connection mode. The physical connection is used for installing the actuator 1 on the plastic handle 3, and can be fixedly connected (such as welded, riveted, bonded, clamped and the like) or detachably connected (such as threaded connection, buckle connection, interference fit and the like). The electrical connection serves to conduct electrical energy from conductors within the plastic grip 3 to the cutting head 11. The other end of the metal rubber-coated rod 13 is connected with the shaping hose 12 in a physical connection mode and an electrical connection mode. The physical connection mode can adopt fixed connection modes such as welding, riveting, bonding, clamping and the like; the electrical connection can be made directly by contact between the metals or by wire connection inside the hollow of the shaped hose. The rubber-coated metal rod 13 is made by coating a layer of insulating material on the outer surface of the metal rod, wherein the metal rod can be made of stainless steel, aluminum or copper and the like, and the insulating material can be silica gel, PVC or other high polymer materials.

The structure of the shaping hose 12 is shown in fig. 5, and the specific structure of the shaping hose 12 is composed of a spring 121, a winding support 122 and an insulating layer 123. The spring 121 and the winding support 122 together form a metal shaped hose (gooseneck), and the insulating layer 123 is made of a layer of insulating material coated outside the winding support 122. The spring 121 is made of a spring steel wire, the winding support 122 is made of a galvanized iron wire or other metal wire material and is wound to cover the spring 121, and the insulating layer is made of silica gel, PVC or other high polymer materials with electrical insulating property. The shaping hose 12 can be bent into a certain shape at will in a three-dimensional space and can keep the shape, the length and the size are basically stable when the shaping hose is bent, and the bent shaping hose 12 has a certain supporting force and can bear the contact force between the cutter head 11 and human tissues without deformation during an operation. Therefore, the doctor can randomly adjust the angle of the cutter head 11 according to the requirement of the operation in the operation process, and the operation is greatly facilitated.

Example two

Referring to fig. 6, the electrosurgical instrument is composed of an actuator 1, a manual switch 2, an insulating grip 3, a cable 4, and a plug 5. The plug 5 is inserted into the high-frequency energy generator, receives the electric energy generated by the high-frequency energy generator, and transmits the electric energy to the actuator 1 through the cable 4, and the manual switch 2 controls the on-off of the electric energy. The actuator 1, the manual switch 2 and the cable 4 are all installed on the insulating handle 3, and meanwhile, the insulating handle 3 is also a handheld part of a doctor during operation.

Referring to fig. 7, the actuator 1 is composed of a tool bit 14, a flexible insulating tube 15, a metal ball joint 16 and a metal mounting rod 17. The cutting head 14 is typically made of stainless steel, but may be made of other conductive metal materials having biocompatibility. The cutting head 14 is used as a conductive electrode to cut and coagulate human tissue during operation, and the surface shape thereof may be different shapes, such as needle, hook, ring, sphere, sheet, blade, etc., according to the operation. The flexible insulating tube 15 is coated on the metal ball joint 16, and the material of the flexible insulating tube 15 can be silica gel, PVC or other high polymer materials. The metal ball joint 16 is made of a conductive metal material, such as stainless steel, aluminum, copper, etc., and a good electrical connection is required between the ball and the socket. The ball of the metal ball joint 16 can rotate a certain angle in a certain direction in the ball socket under the condition of applying a certain acting force. In order to control the friction force of the ball head rotating in the ball socket, the surface of the ball head or the ball socket can be made into a rough surface or a small convex hull, or be made into a micro-interference fit. The metal mounting rod 17 can be made of stainless steel, aluminum or copper.

The tool bit 14 is coupled to a metal ball joint 16, including physical and electrical connections. The physical connection mode can adopt fixed connection modes such as welding, riveting, bonding, clamping and the like; the electrical connection may be made directly by contact between the metals. One end of the metal mounting rod 17 is connected with the metal ball joint 16, and the physical connection and the electrical connection are included. The physical connection mode can adopt fixed connection modes such as welding, riveting, bonding, clamping and the like; the electrical connection may be made directly by contact between the metals. The other end of the metal mounting rod 17 is connected with the insulated grip handle 3, including physical and electrical connections. The effect of physical connection is to install executor 1 on insulating grab handle 3, can adopt fixed connection (for example welding, riveting, bonding, joint etc.), also can adopt detachable connection (for example threaded connection, buckle connection, interference fit etc.). The electrical connection serves to conduct electrical energy from the conductor in the insulating grip 3 to the cutting head 14. In addition, in a specific implementation, the tool bit 14 can be connected with a ball of the metal ball joint 16, and the metal mounting rod 17 is connected with a ball socket of the metal ball joint 16; alternatively, the cutting head 14 may be connected to a ball and socket joint of the metal ball joint 16, and the metal mounting bar 17 may be connected to a ball of the metal ball joint 16.

The metal ball joint 16 has a certain friction force when rotating between the ball and the ball socket, and can bear the contact force between the cutter head 14 and the human tissue during operation without rotating. Therefore, the doctor can freely adjust the angle of the cutter head 14 according to the requirement of the operation in the operation process, and the operation is greatly facilitated.

To sum up, the utility model discloses an electrosurgical instrument has design hose 12 or the angle direction adjusting device of metal bulb joint 16 through the setting for the angle that the executor can conveniently be adjusted to the doctor in the operation is favorable to the operation more, has greatly overcome the problem that the fixed shape electrosurgical instrument executor that exists can not adapt to the needs of some operations among the prior art.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an electro-surgical instrument of executor angularly adjustable, includes executor (1), switch (2), grab handle (3), its characterized in that, electro-surgical instrument still including connect executor (1) with an angle direction adjusting device of grab handle (3), angle direction adjusting device has the structure that can change the contained angle of executor and grab handle under the exogenic action so that executor angular direction is adjustable, and this structure can bear the cutting force of exerting on the executor within a certain range and do not warp.

2. Electrosurgical instrument according to claim 1, characterized in that the actuator (1) further comprises a cutting head, said angular direction adjustment means making the angular direction of the cutting head of the actuator adjustable.

3. Electrosurgical instrument according to claim 1, characterized in that the angular adjustment device is a shaped hose (12) which can be bent freely and which retains its shape so that the actuator (1) and the grip (3) can be angularly adjusted under the action of external forces and can withstand a range of cutting forces over this angle.

4. Electrosurgical instrument according to claim 3, characterized in that the shaping tube (12) is connected to the cutting head, the shaping tube (12) being a metal shaping tube and the outer surface of the shaping tube being coated with an insulating material.

5. Electrosurgical instrument according to claim 4, characterized in that the actuator (1) further comprises a metal rod (13) connected at one end to the shaping hose (12) and at the other end to the grip (3); the outer surface of the metal rod (13) is coated with an insulating material.

6. Electrosurgical instrument according to claim 5, characterized in that the shaping hose (12) comprises a spring (121) and a convoluted support (122), the spring (121) and the convoluted support (122) forming a metallic shaping hose.

7. Electrosurgical instrument according to claim 6, characterized in that the shaping hose (12) further comprises an insulating layer (123) covering the outside of the convoluted support (122).

8. Electrosurgical instrument according to claim 2, characterized in that the angular adjustment device is a metal ball joint (16), wherein the ball of the metal ball joint (16) can be rotated in the ball socket in a certain direction in space by a certain angle under the application of a certain force, so that the angular orientation of the actuator (1) is adjustable.

9. Electrosurgical instrument according to claim 8, characterized in that the metal ball joint (16) is connected at one end to the cutting head and is encased in a flexible insulating tube (15), the flexible insulating tube (15) being deformable in response to rotation of the ball joint.

10. Electrosurgical instrument according to claim 9, characterized in that the actuator (1) further comprises a metal mounting rod (17) which mounts the metal ball joint (16) and the flexible insulating tube (15) covering the metal ball joint on the insulating grip (3) to electrically connect the tool bit to the grip (3).

11. Electrosurgical instrument with angularly adjustable actuator according to claim 10, characterized in that the cutting head is connected to the ball of a ball joint (16) and the metal mounting rod (17) is connected to the ball socket of the metal ball joint (16).

12. Electrosurgical instrument with angularly adjustable actuator according to claim 10, characterized in that the cutting head is connected to the ball socket of a metal ball joint (16) and the metal mounting rod (17) is connected to the ball of the metal ball joint (16).

13. The electrosurgical instrument of claim 1, wherein the electrosurgical instrument is a pencil and the actuator is an electrode tip.