TWI786922B - bipolar probe - Google Patents

Abstract

A bipolar probe includes a first part, a second part, an electrode element and a tube. One end of the electrode element is connected to the first part, and the other end includes a probe end, wherein the probe end forms a first angle; the second part is movably combined with the first part and is located at an initial position relative to the first part; the pipe extends along a straight line, The pipe member includes a first end and a second end, the first end is connected to the second part, and the second end forms a second angle relative to the straight line. Wherein the electrode element penetrates the first end of the pipe and the probe end is close to the second end of the pipe, and when the second part moves from the initial position towards the first part, the probe end of the electrode element is away from the second end of the pipe at a variable angle end, and the variable angle is the sum of at least a part of the first angle and the second angle.

Description

bipolar probe

The invention relates to a bipolar probe, especially a bipolar probe whose operating angle can be adjusted freely.

With the advancement of surgical technology, many diseases can be treated by minimally invasive surgery. Minimally invasive surgery mostly uses endoscopic equipment, combined with electrocautery surgical instruments, to perform surgical treatment on specific locations in the patient's body. The advantage of minimally invasive surgery is that only a few holes need to be opened on the surface of the patient's body to perform relevant surgical operations deep into the body, without large-scale wounds, which is beneficial to the patient's postoperative recovery; Perform more precise operations.

Electrocautery surgical instruments such as electrode probes currently used in minimally invasive surgery often only provide a fixed angle of operation, such as 30 degrees or 90 degrees, which may easily cause operational restrictions or inconvenience during the operation. In addition, when operating the electrode probe, the user must continue to apply force manually to maintain a fixed extension length of the electrode probe. Once the operation time is too long, the user may fatigue the hand muscles due to continuous force and cannot maintain the electrode stably. The protruding length of the probe may reduce the accuracy of the operation in severe cases, thereby affecting the surgical effect on the patient. Therefore, how to design a bipolar probe that can freely change the operation angle and is beneficial to the user's operation is a topic worthy of research.

The object of the present invention is to provide a bipolar probe whose operating angle can be adjusted freely.

To achieve the above purpose, the bipolar probe of the present invention includes a first part, a second part, an electrode element and a tube. One end of the electrode element is connected to the first part, and the other end includes a probe end, wherein the probe end forms a first angle; the second part is movably combined with the first part and is located at an initial position relative to the first part; the pipe extends along a straight line, The pipe member includes a first end and a second end, the first end is connected to the second part, and the second end forms a second angle relative to the straight line. Wherein the electrode element penetrates the first end of the pipe and the probe end is close to the second end of the pipe, and when the second part moves from the initial position towards the first part, the probe end of the electrode element is away from the second end of the pipe at a variable angle end, and the variable angle is the sum of at least a part of the first angle and the second angle.

In an embodiment of the present invention, the bipolar probe further includes an elastic member for assisting the second part to return to the original position after moving toward the first part, wherein two ends of the elastic member are respectively connected to the first part and the second part.

In one embodiment of the present invention, the elastic member is a U-shaped elastic piece.

In one embodiment of the present invention, the elastic member is a spring.

In an embodiment of the present invention, the first bending angle is between 20 degrees and 45 degrees.

In an embodiment of the present invention, the second bending angle is between 20 degrees and 45 degrees.

In one embodiment of the present invention, the bipolar probe further includes a positioning component disposed between the first component and the second component, the positioning component is used to provide positioning of the second component at least one specific position when it moves toward the first component Effect.

In one embodiment of the present invention, the positioning assembly includes a multi-stage positioning structure and a tenon member, the multi-stage positioning structure is combined with the first part, and the tenon part is combined with the second part or the elastic part One end of the second part enables the multi-stage positioning structure to cooperate with the tenon to provide positioning effects corresponding to multiple specific positions.

In an embodiment of the present invention, the first component further includes a stop structure for limiting the moving distance of the second component towards the first component.

In one embodiment of the present invention, the first part further includes a first joint part, and the second part further includes a second joint part; when the second part is in an initial position relative to the first part, the first joint part The second coupling part is movably connected so that the first part and the second part can only move along a straight line.

In one embodiment of the present invention, when the second component is at the initial position, the probe end of the electrode element does not expose the second end of the tube.

Accordingly, the bipolar probe of the present invention can produce a variable angle by manually applying force, providing users with operational flexibility and convenience during surgery. In addition, the bipolar probe of the present invention can provide a multi-stage positioning effect through the positioning component, which is more convenient for the user to adjust the length of the electrode element during operation.

1,1a: bipolar probe

10: First part

11: The first junction

12: Stop structure

20: Second part

21: The second junction

30: Elastic parts

40: Electrode components

41: Probe end

50: pipe fittings

51: first end

52: second end

60:Positioning components

61: Multi-stage positioning structure

62: tenon parts

70: Electric transmission line

A1: First corner

A2: Second corner

L: Straight line

Figure 1 is an exploded view of the bipolar probe of the present invention.

Fig. 2 is a schematic diagram of a bipolar probe of the present invention.

Fig. 3 is a schematic diagram of the operating state of the bipolar probe of the present invention.

Fig. 4 is a schematic diagram of the variable angle exhibited by the bipolar probe of the present invention.

Fig. 5 is a schematic diagram of another embodiment of the bipolar probe of the present invention.

Since the various aspects and embodiments are only illustrative and non-restrictive, after reading this specification, those with ordinary knowledge may also have other aspects and embodiments without departing from the scope of the present invention. According to the following detailed description and scope of patent application, the features and advantages of these embodiments will be more evident.

Herein, "a" or "an" is used to describe the elements and components described herein. This is done for convenience of description only and to provide a general sense of the scope of the invention. Accordingly, such description should be read to include one or at least one and the singular also includes the plural unless it is obvious that it is otherwise meant.

In this article, the terms "first" or "second" and similar ordinal numbers are mainly used to distinguish or refer to the same or similar elements or structures, and do not necessarily imply that these elements or structures are separated in space or time. order. It should be understood that in certain situations or configurations, ordinal numbers may be used interchangeably without affecting the practice of the invention.

As used herein, the term "includes", "has" or any other similar term is intended to cover a non-exclusive inclusion. For example, an element or structure containing a plurality of elements is not limited to the elements listed herein, but may include other elements not explicitly listed but generally inherent to the element or structure.

Please refer to FIG. 1 and FIG. 2 first, wherein FIG. 1 is an exploded view of the bipolar probe of the present invention, and FIG. 2 is a schematic diagram of the bipolar probe of the present invention. As shown in FIG. 1 and FIG. 2 , the bipolar probe 1 of the present invention includes a first part 10 , a second part 20 , an electrode element 40 and a tube 50 . The first part 10 and the second part 20 can be made of the same or different solid materials, such as plastic materials, metals or alloys. The first component 10 and the second component 20 are the main supporting structures of the bipolar probe 1 of the present invention. The appearance of the first part 10 and the second part 20 is similar to a column, such as a hollow cylinder, and the second part 20 is structurally designed to be movably connected. Compatible with the first component 10, but the appearance structure of the first component 10 and the second component 20 is not limited thereto. For example, each of the first component 10 and the second component 20 may be a combined structure of a column-shaped component combined with a handle extending from the column-shaped component.

In one embodiment of the present invention, the first component 10 includes a first combining portion 11 , and the second component 20 includes a second combining portion 21 . When the bipolar probe 1 of the present invention is not being operated, the second component 20 is at an initial position relative to the first component 10 (as shown in FIG. 2 ). Now the second joint portion 21 of the second part 20 is connected to the first joint part 11 of the first part 10, and in this state the second part 20 can only be along a straight line relative to the first part 10 (such as the first part 10 and the first part 10). The same axis corresponding to the second part 20) moves. For example, the first combining portion 11 may be a protrusion structure, and the second combining portion 21 may be an accommodating groove whose size fits the protrusion structure. When the second part 20 is in the initial position relative to the first part 10, the protrusion structure is at least partially inserted into the accommodating groove; as the second part 20 moves arbitrarily relative to the first part 10, the protrusion structure will not come out of the accommodation. The groove is placed so that the second component 20 remains connected to the first component 10 .

In one embodiment of the present invention, the bipolar probe 1 further includes an elastic member 30 . Two ends of the elastic member 30 are connected to the first component 10 and the second component 20 respectively, and the elastic member 30 can provide elastic recovery force. In terms of design, when the second component 20 is in an initial position relative to the first component 10 , the elastic member 30 is in a non-compressed state. As the second component 20 gradually moves toward the first component 10 , the elastic member 30 changes from the uncompressed state to the compressed state, and accumulates elastic restoring force. Accordingly, the bipolar probe 1 of the present invention can assist the second part 20 to move toward the first part 10 and return to the initial position by virtue of the elastic restoring force of the elastic member 30 . In this embodiment, the elastic member 30 can be a U-shaped elastic piece, the two ends of the U-shaped elastic piece are respectively connected to the first part 10 and the second part 20, and the body part of the U-shaped elastic piece can be manually operated by the user to control the second part. The second component 20 moves relative to the first component 10, but the implementation of the elastic member 30 is not limited thereto. For example, the elastic member 30 It may also be a spring, and the two ends of the spring may abut against the first component 10 and the second component 20 respectively and be arranged along a straight line.

In an embodiment of the present invention, the first component 10 further includes a stopper structure 12 . The stopper structure 12 can be disposed outside the first joint portion 11 of the first component 10 to limit the moving distance of the second component 20 towards the first component 10 . For example, assume that the first combining portion 11 is a post structure with a cross-sectional diameter, and the second combining portion 21 is an accommodating groove with a corresponding cross-sectional diameter, so as to allow the protruding post structure to be inserted into the accommodating groove and held in the accommodating groove. Move in the slot. The stop structure 12 can be a flange structure located outside the first coupling portion 11, and the cross-sectional diameter of the flange structure is longer than the cross-sectional diameter of the protrusion structure and the receiving groove. However, the structural form of the stop structure 12 is not limited thereto. For example, the stop structure 12 may also be a bump or a bump disposed outside the first coupling portion 11 .

The electrode element 40 is a bendable elongated element, and the electrode element 40 can be made of flexible material, such as plastic material or rubber. One end of the electrode element 40 is connected to the first component 10 , and can be connected to the electric transmission line 70 through the first component 10 , so that the electrode element 40 obtains external power supply through the electric transmission line 70 . The other end of the electrode element 40 includes a probe end 41, and the probe end 41 is used to receive electric power as a high-frequency heat source for performing relevant surgical operations. The so-called high frequency here means that the frequency is approximately between 500 KHz and 4 MHz. The probe end 41 is made of metal or alloy, and the probe end 41 is electrically connected to the electric transmission line 70 . The probe end 41 can form a first bending angle A1 (please refer to FIG. 4 ). In an embodiment of the present invention, the first bending angle A1 is between 20 degrees and 45 degrees, but the present invention is not limited thereto.

The pipe member 50 mainly extends along a straight line, and the pipe member 50 can be made of stronger material, such as plastic material, metal or alloy. The tube 50 includes a first end 51 and a second end 52 . The first end 51 of the pipe 50 is connected to the second part 20, and the second end 52 of the pipe 50 forms a second angle A2 relative to the straight line (please refer to Figure 4). In an embodiment of the present invention, the second bending angle A2 is between 20 degrees and 45 degrees, but the present invention is not limited thereto.

In the bipolar probe 1 of the present invention, when the first part 10 is combined with the second part 20, the probe end 41 of the electrode element 40 first penetrates the first part 10, and then penetrates the pipe part 50 from the first end 51 of the pipe part 50, and makes The probe end 41 is adjacent to the second end 52 of the tube 50 . In one embodiment of the present invention, when the second part 20 is in the initial position, the probe end 41 of the electrode element 40 does not expose the second end 52 of the tube 50; that is, the electrode element 40 is completely hidden in the tube 50 . However, the present invention is not limited thereto. For example, when the second component 20 is at the initial position, the probe end 41 of the electrode element 40 may also partially or completely expose the second end 52 of the pipe member 50 .

The operating principle of the bipolar probe 1 of the present invention will be described below. Please refer to FIG. 2 to FIG. 4 together, wherein FIG. 3 is a schematic diagram of the operating state of the bipolar probe of the present invention, and FIG. 4 is a schematic diagram of the variable angle presented by the bipolar probe of the present invention. When the user operates the bipolar probe 1 of the present invention, the second part 20 is driven to move from the initial position shown in FIG. 2 to the first part 10 by applying force. As shown in Figure 3, when the second part 20 is gradually approaching the first part 10, the probe end 41 of the electrode element 40 can gradually expose the second end 52 of the pipe part 50 as the second part 20 and the pipe part 50 move, and The probe end 41 of the electrode element 40 is away from the second end 52 of the tube 50 at a variable angle.

As shown in Figure 4, since the second end 52 of the tube 50 forms a second bend angle A2 with respect to the straight line L, when the probe end 41 of the electrode element 40 exposes the second end 52 of the tube 50, it presents itself as a second bend. The angle of angle A2; as the probe end 41 of the electrode element 40 gradually moves away from the second end 52 of the tube 50, the first angle A1 formed by the probe end 41 of the electrode element 40 will become more and more obvious, and gradually increase the angle of the probe end 41. Degree of bending; that is to say, the aforementioned variable angle can be the sum of at least a part of the first bending angle A1 and the second bending angle A2, and when the variable angle is at a maximum value, the aforementioned variable angle is the first bending angle A1 plus the second corner A2. For example, assuming that the first bending angle A1 and the second bending angle A2 are both 45 degrees, the minimum variable angle is greater than 45 degrees, and the maximum variable angle can reach about 90 degrees. Accordingly, with the operation of the user, the operating angle presented by the probe end 41 of the electrode element 40 can be flexibly changed, so as to respond to different surgical conditions.

Please refer to FIG. 5 , which is a schematic diagram of another embodiment of the bipolar probe of the present invention. As shown in FIG. 5 , in one embodiment of the present invention, the bipolar probe 1 a further includes a positioning component 60 . The positioning component 60 is disposed between the first component 10 and the second component 20 . The positioning component 60 is used for providing a positioning effect of at least one specific position when the second component 20 moves toward the first component 10 . For example, the positioning assembly 60 may include a multi-segment positioning structure 61 and a tenon member 62, wherein the multi-segment positioning structure 61 may be combined with the first component 10, and the tenon component 62 may be combined with the second component 20 or the elastic member 30 One end of the second part 20 is connected. The multi-segment positioning structure 61 can be provided with slots at multiple specific positions (for example, the multi-segment positioning structure 61 can be a zigzag structure, and a slot is formed between two adjacent teeth), and the tenon member 62 moves to any one of the slots. A positioning effect can be produced when slotting. Therefore, when the second part 20 moves toward the first part 10, as long as the tenon part 62 moves to the slot at any specific position and engages with each other, the second part can be temporarily fixed at the specific position relative to the first part 10. Two parts 20. The user can also manually control the tenon member 62 to disengage from the slot of the multi-stage positioning structure 61 to continue moving the second component 20 . Accordingly, the positioning component 60 can provide positioning effects corresponding to multiple specific positions.

To sum up, the bipolar probe of the present invention can provide a wide range of operating angles by combining the electrode elements with the angle design of the tube, and the structure is simple and easy to assemble, providing users with flexibility and convenience in operation. In addition, the bipolar probe of the present invention can provide a multi-stage positioning effect through the positioning component, which is more convenient for the user to adjust the length of the electrode element during operation.

The above-mentioned embodiments are only auxiliary descriptions in nature, and are not intended to limit the embodiments of the subject matter of the application or the applications or uses of these embodiments. Furthermore, while at least one exemplary embodiment has been presented in the foregoing description, it should be appreciated that a wide variety of variations are possible. It should also be understood that The embodiments described herein are not intended to limit the scope, use, or configuration of claimed subject matter in any way. Rather, the foregoing description will provide those skilled in the art with a convenient guide for implementing one or more of the described embodiments. Furthermore, various changes may be made in the function and arrangement of elements without departing from the scope defined by the claims, which include known equivalents and all foreseeable equivalents at the time of filing this patent application.

1: bipolar probe

10: First part

11: The first junction

12: Stop structure

20: Second part

21: The second junction

30: Elastic parts

40: Electrode components

41: Probe end

50: pipe fittings

51: first end

52: second end

70: Electric transmission line

Claims (11)

A bipolar probe, comprising: a first part; an electrode element, one end of the electrode element is connected to the first part, and the other end includes a probe end, wherein the probe end forms a first bend; a second part, movably combined with the first part and located at an initial position relative to the first part; part, and the second end forms a second angle with respect to the straight line; wherein the electrode element penetrates the first end of the pipe and the probe end is close to the second end of the pipe, and when the second part When moving from the initial position toward the first part, the probe end of the electrode element moves away from the second end of the tube at a variable angle, and the variable angle is at least a part of the first bend angle and the first bend angle. The sum of the two corners. The bipolar probe as described in claim 1 further includes an elastic member for assisting the second part to return to the initial position after moving toward the first part, wherein the two ends of the elastic member are respectively connected to the first part and the second component. The bipolar probe as described in claim 2, wherein the elastic member is a U-shaped shrapnel. The bipolar probe according to claim 2, wherein the elastic member is a spring. The bipolar probe according to claim 1, wherein the first bending angle is between 20 degrees and 45 degrees. The bipolar probe according to claim 1, wherein the second bending angle is between 20 degrees and 45 degrees. The bipolar probe as described in claim 1 further includes a positioning component, which is arranged between the first part and the second part, and the positioning component is used to provide that the second part moves toward the first part at least The positioning effect of a specific position. The bipolar probe as described in claim 7, wherein the positioning component includes a multi-stage positioning structure and a tenon, the multi-stage positioning structure is combined with the first part, and the tenon is combined with the second One end of the component, so that the multi-stage positioning structure cooperates with the tenon to provide positioning effects corresponding to a plurality of specific positions. The bipolar probe as claimed in claim 1, wherein the first part further includes a stop structure for limiting the moving distance of the second part towards the first part. The bipolar probe as described in claim 1, wherein the first part further includes a first joint part, and the second part further includes a second joint part; when the second part is located at the In the initial position, the first joint part is movably connected to the second joint part, so that the first part and the second part can only move along the straight line. The bipolar probe as claimed in claim 1, wherein when the second member is at the initial position, the probe end of the electrode element does not expose the second end of the tube.

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