A transnasal bipolar hemostatic electrode

Abstract

The present invention discloses a transnasal bipolar hemostatic electrode, comprising an electrode head, an outer tube, an insulating connecting rod, a handle button, a handle shell, a front collar cap and a rear collar cap, wherein the electrode head is located at one end of the outer tube, the other end of the outer tube is connected to the front collar cap, the front collar cap is screwed to the handle shell, the handle button is arranged on the handle shell, the other end of the handle shell is spirally connected to the rear collar cap, the insulating connecting rod is arranged inside the outer tube, one end of which is connected to the electrode head, and the other end passes through the front collar cap and extends to the inside of the handle shell. It is connected to a high-frequency generating device through a high-frequency cable. When the electrode head reaches a site where hemostasis is required, the electrode head is controlled to close together by pressing the handle button, and the bleeding tissue or blood vessel will generate heat and coagulate rapidly under the action of the high-frequency current, wherein the clamping force of the electrode head is large and it is not easy to deform.

Description

Technical Field

[0001] The invention relates to the technical field of intraoperative hemostasis in transnasal surgery, and in particular to a transnasal bipolar hemostasis electrode. Background Art

[0002] At present, the existing high-frequency surgical instruments have been widely used in various surgeries, but they have the following shortcomings: 1. Due to their structural characteristics, the rod above the handle is a straight rod that cannot be bent or rotated, which affects the effect during use; 2. Due to their structural characteristics, the two electrode heads are not strong enough and are easily deformed. For example, if the electrode heads are deformed after being subjected to external force, they will not be able to engage, thereby failing to achieve the function of electrocoagulation; 3. The electrical insulation is complicated to manufacture. In order to make the use of the electrodes meet the insulation requirements, the metal shaft of the instrument and some electrodes need to be wrapped or sprayed with insulating materials, which will increase the manufacturing cost and make the process more complicated; 4. The clamping force feedback effect of the electrode head is poor. Due to the structural characteristics of many hemostatic electrodes, the handle buttons do not have force feedback after pinching, which brings certain inconvenience to the operator; 5. At present, the operating handles and outer rods of the transnasal bipolar hemostatic electrodes on the market are large in size, which is not convenient for operation and entering narrow cavities to perform surgery. Therefore, a transnasal bipolar hemostatic electrode is urgently needed to solve the above problems. Summary of the invention

[0003] To this end, the present invention provides a transnasal bipolar hemostatic electrode to solve at least one of the above-mentioned problems.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] According to the present invention, a transnasal bipolar hemostatic electrode is provided, comprising an electrode head, an outer tube, an insulating connecting rod, a handle button, a handle shell, a front collar cap and a rear collar cap, wherein the electrode head is located at one end of the outer tube, the other end of the outer tube is connected to the front collar cap, the front collar cap is screwed to the handle shell, the handle button is arranged on the handle shell, the other end of the handle shell is spirally connected to the rear collar cap, the insulating connecting rod is arranged inside the outer tube, one end of the insulating connecting rod is connected to the electrode head, and the other end passes through the front collar cap and extends to the inside of the handle shell.

[0006] Furthermore, the handle button includes a hand-holding part, an elastic reset tongue and a driving part; wherein, the tail end of the handle button is provided with a fixed axis hole that cooperates with the fixed axis of the handle shell, and the handle button can rotate around the fixed axis of the handle shell; a slider is installed inside the handle shell, and the driving part is provided with a driving surface, and the driving surface is in contact with the slider, and the fixed axis hole is arranged at one end of the hand-holding part, and a rotating shaft is installed on the fixed axis hole. Under the pressing action of external force, the hand-holding part can make the elastic reset tongue rotate, and the driving surface drives the slider to slide in the direction of the fixed axis hole, so that the spring on one side of the slider is compressed and deformed, and at the same time drives the insulating connecting rod to move in the direction of the rear collar cap.

[0007] Furthermore, the upper surface of the hand-held part is provided with anti-slip grooves.

[0008] Furthermore, the insulating connecting rod comprises an insulating connecting rod head section, a needle double-moving electrode head structure, and a first convex shaft, a second convex shaft and a first limit shaft length through hole are provided on both sides of the width direction of the insulating connecting rod head section, and the first limit shaft length through hole is in a long strip shape and passes through the insulating connecting rod. For the single-moving electrode head structure, a first convex shaft is provided on one side of the insulating connecting rod head section. The first convex shaft and the second convex shaft are both driving convex shafts for driving the electrode head.

[0009] Further, the outer tube includes an outer tube head section, the electrode head includes a movable electrode head and a stationary electrode head, an electrode rotation axis is provided inside the outer tube head section, and the number of the electrode rotation axis is one or two. When the number of the electrode rotation axis is one, the movable electrode head can rotate around the electrode rotation axis, and when the number of the electrode rotation axis is two, the movable electrode head and the stationary electrode head can respectively rotate around the corresponding electrode rotation axis.

[0010] Furthermore, for the double-moving electrode head structure, the outer tube head section is also provided with a limiting hole, and the limiting hole is located above the electrode rotation axis. There are two limiting holes, which are symmetrically distributed on both sides of the outer tube head section; for the single-moving electrode head structure, that is, when the number of the electrode rotation axis is one, the outer tube head section realizes limitation through the size of the outer tube.

[0011] Furthermore, for the double-moving electrode head structure, the second protruding shaft is arranged on the opposite side of the first protruding shaft.

[0012] Furthermore, the movable electrode head is provided with an electrode shaft hole, a limit shaft through hole and a driving groove; wherein, the limit shaft through hole is arranged between the electrode shaft hole and the driving groove; when the electrode head is a double movable electrode head, a limit shaft is inserted into the limit hole of the outer tube head section, and the limit shaft then passes through the limit shaft through hole of the movable electrode head, the limit shaft long through hole of the insulating connecting rod head section and the limit shaft through hole of the other movable electrode head in sequence, and then overlaps with the other limit hole of the outer tube head section.

[0013] Furthermore, for the single-moving electrode head structure, a rotating shaft hole and an open slide groove are provided on the moving electrode head, the rotating shaft hole cooperates with the electrode rotating shaft, and the open slide groove cooperates with the first convex shaft, and the single-moving electrode head is pushed to rotate around the electrode rotating shaft through the first convex shaft.

[0014] Furthermore, the transnasal bipolar hemostatic electrode also includes a first limiting structure, which is arranged at the tail end of the insulating connecting rod, including a limiting protrusion and a limiting groove, the limiting protrusion is arranged on the surface of the insulating connecting rod, and the limiting groove is arranged on the surface of the slider facing the insulating connecting rod, or the limiting protrusion is arranged on the surface of the slider facing the insulating connecting rod, and the limiting groove is arranged on the surface of the insulating connecting rod, and the limiting is achieved by clamping the limiting protrusion into the limiting groove.

[0015] The present invention has the following advantages:

[0016] The transnasal bipolar hemostatic electrode in the present invention is connected to a high-frequency generating device via a high-frequency cable. When the electrode head reaches the site where hemostasis is required, the electrode head is controlled to close together by pressing the handle button. The bleeding tissue or blood vessel will generate heat and coagulate rapidly under the action of the high-frequency current. The electrode head has a strong clamping force and is not easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 is a schematic diagram of the overall structure of a transnasal bipolar hemostatic electrode according to an exemplary embodiment;

[0020] Figure 2 is a structural schematic diagram showing a handle button in use according to an exemplary embodiment;

[0021] Figure 3 is a schematic structural diagram of an insulating connecting rod according to an exemplary embodiment;

[0022] Figure 4 FIG. 1 is a schematic diagram of the structure of the head of the insulating connecting rod main body corresponding to the single movable electrode head according to an exemplary embodiment (similar to FIG. 1 ). Figure 6 Cooperate);

[0023] Figure 5 is a schematic structural diagram of a tail end of an insulating connecting rod according to an exemplary embodiment;

[0024] Figure 6 is a structural schematic diagram of a head section of an insulating connecting rod from another perspective according to an exemplary embodiment;

[0025] Figure 7 is a structural schematic diagram of a head section of an insulating connecting rod from another perspective according to an exemplary embodiment;

[0026] Figure 8 is a schematic structural diagram of a head section of an outer tube from another perspective according to an exemplary embodiment;

[0027] Fig. 9 is a schematic diagram of the installation position of the electrode head according to an exemplary embodiment;

[0028] Fig.10 is a schematic diagram of the internal installation position of an electrode head according to an exemplary embodiment;

[0029] Fig.11 is a schematic structural diagram of an outer tube head section according to an exemplary embodiment;

[0030] Fig.12 is a schematic diagram of the internal structure of an outer tube head section according to an exemplary embodiment;

[0031] Fig.13 is a schematic structural diagram of a moving electrode head according to an exemplary embodiment;

[0032] Fig.14 is a structural schematic diagram of a moving electrode head from another perspective according to an exemplary embodiment;

[0033] Fig.15 is a schematic structural diagram of a static electrode head according to an exemplary embodiment;

[0034] Fig.16 is a schematic structural diagram showing a single-action hemostasis electrode head in an open state according to an exemplary embodiment;

[0035] Fig.17 is a schematic structural diagram showing a single-action hemostasis electrode head in a closed state according to an exemplary embodiment;

[0036] Fig.18 is a schematic structural diagram of a double-action hemostatic electrode head according to an exemplary embodiment;

[0037] Fig.19 is a schematic structural diagram of a double-action hemostatic insulating connecting rod according to an exemplary embodiment;

[0038] Fig. 20 is a schematic structural diagram of a head portion of a double-action hemostatic insulating connecting rod according to an exemplary embodiment;

[0039] Fig.21 is a schematic structural diagram of the tail portion of a double-action hemostatic insulating connecting rod according to an exemplary embodiment;

[0040] Fig. 22 is a schematic diagram of an assembly structure of an insulating connecting rod and a sliding block according to an exemplary embodiment;

[0041] Fig.23 is a schematic structural diagram of a double-moving electrode head according to an exemplary embodiment;

[0042] Fig.24 is a schematic structural diagram of an outer tube head section according to an exemplary embodiment;

[0043] Fig.25 is a schematic structural diagram of a limit shaft of a double-action hemostasis electrode head in a closed state according to an exemplary embodiment;

[0044] Fig.26 is a schematic structural diagram of a limit shaft of a double-action hemostasis electrode head in an open state according to an exemplary embodiment;

[0045] Fig. 27is a schematic diagram of the structure of a handle button according to an exemplary embodiment;

[0046] In the figure: 10, electrode head; 11, moving electrode head; 111, electrode rotating shaft hole; 112, limiting shaft through hole; 113, driving slide groove; 114, rotating shaft hole; 115, opening slide groove; 12, static electrode head; 20, outer tube; 21, outer tube head section; 22, electrode rotating shaft; 23, limiting hole; 24, limiting shaft length through hole; 25, second convex shaft; 26, positioning circular hole; 30, insulating connecting rod; 31, insulating connecting rod head section ; 32. First cam; 34. Undercut; 50. Handle button; 51. Hand-held part; 52. Elastic reset tongue; 53. Sliding block; 54. Fixed shaft hole; 55. Driving part; 551. Driving surface; 56. Rotating axis; 57. Anti-slip pattern; 60. Handle shell; 70. Front collar cap; 80. Rear collar cap; 90. Wire; 91. Limiting protrusion; 92. Limiting groove; 94. Second limiting structure; 95. Static electrode head fixing groove. DETAILED DESCRIPTION

[0047] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] According to an embodiment of the present invention, a transnasal bipolar hemostatic electrode is provided. Figures 1 to 27 As shown, it includes an electrode head 10, an outer tube 20, an insulating connecting rod 30, a handle button 50, a handle shell 60, a front collar cap 70 and a rear collar cap 80, wherein the electrode head 10 is located at one end of the outer tube 20, the other end of the outer tube 20 is connected to the front collar cap 70, the front collar cap 70 is screwed to the handle shell 60, the handle button 50 is arranged on the handle shell 60, the other end of the handle shell 60 is spirally connected to the rear collar cap 80, the insulating connecting rod 30 is arranged inside the outer tube 20, one end of which is connected to the electrode head 10, and the other end passes through the front collar cap 70 and extends to the inside of the handle shell 60.

[0049] The transnasal bipolar hemostatic electrode in the present invention is connected to a high-frequency generating device via a high-frequency cable. When the electrode head 10 reaches the site where hemostasis is required, the electrode head 10 is controlled to close together by pressing the handle button 50. The bleeding tissue or blood vessels will generate heat and coagulate rapidly under the action of the high-frequency current. The electrode head 10 has a strong clamping force and is not easily deformed.

[0050] In some optional embodiments, the handle button 50 includes a hand-held portion 51, an elastic reset tongue 52 and a driving portion 55; wherein, the tail end of the handle button 50 is provided with a fixed axis hole 54 that cooperates with the fixed axis of the handle shell 60, and the handle button 50 can rotate around the fixed axis of the handle shell 60; a slider 53 is installed inside the handle shell 60, and the driving portion 55 is provided with a driving surface 551, and the driving surface 551 contacts the slider 53, and the fixed axis hole 54 is arranged at one end of the hand-held portion 51, and a rotating shaft 56 is installed on the fixed axis hole 54. Under the pressing action of external force, the hand-held portion 51 can make the elastic reset tongue 52 rotate, and the driving surface 551 drives the slider 53 to slide in the direction of the fixed axis hole 54, so that the spring on the right side of the slider 53 is compressed and deformed, and at the same time drives the insulating connecting rod 30 to move in the direction of the rear collar cap 80.

[0051] In some optional embodiments, the upper surface of the handle portion 51 is provided with anti-slip grooves 57 to prevent the user's hands from slipping when pressing.

[0052] In some optional embodiments, the insulating connecting rod 30 includes an insulating connecting rod head section 31, a needle double-moving electrode head structure, and the insulating connecting rod head section 31 is provided with a first convex shaft 32, a second convex shaft 25 and a limiting axis length through hole 24 on both sides in the width direction. The limiting axis length through hole 24 is in a long strip shape and passes through the insulating connecting rod 30. One end of the insulating connecting rod head section 31 is provided with an undercut 34 to achieve connection with the main body of the insulating connecting rod 30. For the single-moving electrode head structure, a first convex shaft 32 is provided on one side of the insulating connecting rod head section 31.

[0053] In some optional embodiments, the outer tube 20 includes an outer tube head section 21, the electrode head 10 includes a movable electrode head 11 and a stationary electrode head 12, and an electrode rotation shaft 22 is provided inside the outer tube head section 21. The number of the electrode rotation shafts 22 is one or two. When the number of the electrode rotation shafts 22 is one, the movable electrode head 11 can rotate around the electrode rotation shaft 22. When the number of the electrode rotation shafts 22 is two, the movable electrode head 11 and the stationary electrode head 12 can respectively rotate around the corresponding electrode rotation shafts 22.

[0054] In some optional embodiments, for the double-moving electrode head structure, the outer tube head section 21 is further provided with two limiting holes 23, which are symmetrically distributed on both sides of the outer tube head section 21, one of the limiting holes 23 is located above the electrode rotation axis 22, and the limiting hole 23 on the other side is located below the electrode rotation axis 22. A positioning circular hole 26 is also provided on the side of the outer tube head section 21 for positioning the outer tube head section 21; for the single-moving electrode head structure, that is, when the number of the electrode rotation axis 22 is one, the outer tube head section 21 is limited by its own structural shape.

[0055] In some optional embodiments, the second protruding shaft 25 is disposed on both sides of the insulating connecting rod head section 31 in the width direction, and the limiting axis length through hole 24 penetrates the insulating connecting rod head section 31 in the width direction.

[0056] In some optional embodiments, the movable electrode head 11 is provided with an electrode shaft hole 111, a limiting shaft through hole 112 and a driving groove 113; wherein, the limiting shaft through hole 112 is arranged between the electrode shaft hole 111 and the driving groove 113; when the electrode head 10 is a double movable electrode head, a limiting shaft is inserted into the limiting hole 23 of the outer tube head section 21, and the limiting shaft passes through the limiting shaft through hole 112, the limiting shaft long through hole 24 and the limiting shaft through hole 112 of another movable electrode head 11 in sequence, and then overlaps with the other limiting hole 23 of the outer tube head section 21.

[0057] In some optional embodiments, the movable electrode head 11 is provided with a rotating shaft hole 114 and an open slide groove 115, wherein the rotating shaft hole 114 is a circular through hole. The rotating shaft hole 114 cooperates with the electrode rotating shaft 22, and the open slide groove 115 cooperates with the first protruding shaft 32, and the single movable electrode head is pushed to rotate around the electrode rotating shaft 22 through the first protruding shaft 32.

[0058] In some optional embodiments, the transnasal bipolar hemostatic electrode also includes a first limiting structure, which is arranged at the tail end of the insulating connecting rod 30, including a limiting protrusion 91 and a limiting groove 92, the limiting protrusion 91 is arranged on the surface of the insulating connecting rod 30, and the limiting groove 92 is arranged on the surface of the slider 53 facing the insulating connecting rod 30, or the limiting protrusion 91 is arranged on the surface of the slider 53 facing the insulating connecting rod 30, and the limiting groove 92 is arranged on the surface of the insulating connecting rod 30, and the limiting protrusion 91 is arranged on the surface of the slider 53 facing the insulating connecting rod 30, and the limiting groove 92 is arranged on the surface of the insulating connecting rod 30, and the limiting is achieved by snapping the limiting protrusion 91 into the limiting groove 92.

[0059] The outer tube 20 of the transnasal bipolar hemostatic electrode is a stainless steel tube with an outer diameter of 3.2 mm, which is smaller than the outer diameter of similar devices at present, and many similar devices at present have an outer diameter of more than 4 mm. The outer tube 20 is provided with an insulating connecting rod 30 that can be extended and retracted along the axial direction of the outer tube 20 and two wires 90 connected to the electrode head 10. The stainless steel tube can be bent and shaped appropriately according to the needs of the implementer. At the same time, since there is a gap between the internal insulating connecting rod 30 and the stainless steel outer tube, the insulating connecting rod 30 and the stainless steel outer tube can still move relative to each other under appropriate bending, and will not get stuck, thereby not affecting the opening and closing function of the electrode head 10. At the same time, the stainless steel outer tube and the insulating connecting rod 30 have a second limiting structure 94 and a static electrode head fixing groove 95 at one end of the electrode head 10, so that when the outer tube 20 is rotated, the insulating connecting rod 30 and the electrode head 10, and the internal wire 90 will rotate together to a certain angle, thereby realizing the function of rotating within a certain angle, meeting the needs of users who need to adjust the overall bending degree and the rotation angle of the electrode head 10 for some reasons during operation.

[0060] The structure of the electrode head 10 can adopt a single-action form, that is, one electrode head is fixed and serves as a stationary electrode head 12, and the other electrode head can be opened and closed under the action of the insulating connecting rod 30; it can also adopt a double-action form, that is, both electrode heads can be opened and closed under the action of the insulating connecting rod 30; the movement mechanism of the electrode head 10 eliminates the connecting rod mechanism of similar instruments, making the structural space more compact. The composition of the movement mechanism of the electrode head 10 (taking the single-action form as an example): a rotating shaft hole 114 is set on the moving electrode head 11, and the outer tube 20 There is a corresponding electrode rotating shaft 22 on the inner side of the head end, and the movable electrode head 11 rotates around the electrode rotating shaft 22. At the same time, an open slide groove 115 is set on the movable electrode head 11, and a first convex shaft 32 is designed on the insulating connecting rod head section. The first convex shaft 32 is in the open slide groove 115, and the insulating connecting rod 30 moves forward and backward. The first convex shaft 32 contacts the open slide groove 115 and moves forward and backward together, thereby pushing the movable electrode head 11 to swing around the axis in the rotating shaft hole 114, thereby realizing the opening and closing action of the movable electrode head 11. The principle of the double movable electrode head is the same, and the opening and closing action of a single electrode head is changed to the relative opening and closing action of the two electrode heads on both sides.

[0061] The important part of the present invention for realizing movement and transmitting force is the insulating connecting rod 30, which has a small diameter and can slide back and forth easily in the stainless steel outer tube. At the same time, in order to reduce unnecessary insulation processes, this part is designed to be a polymer material, which has high strength and is not conductive. At the same time, this part has two guide grooves for the wires 90 for arranging the wires. The two wires 90 are respectively inserted and connected to the electrode head 10 at the head end. The present invention greatly simplifies the insulation process through the selection of materials and also reduces the cost of the device.

[0062] The handle buttons of similar bipolar hemostatic electrodes mostly adopt a connecting rod slider mechanism or a lever mechanism. The structure of such handle buttons is relatively complex and has many parts. The key is to limit the volume of the handle button structure, so that the handle button cannot be designed to be too small. The present invention adopts a simpler structure, the drive part 55 is in contact with the slider 53, the center of the slider 53 has a through hole, the insulating connecting rod 30 is inserted into the through hole, the slider 53 can drive the insulating connecting rod 30 to move together, the tail end of the handle button 50 rotates around a rotating shaft 56, the rotating shaft 56 is fixed on the handle shell 60, and the handle button 50 rotates around the rotating shaft 56 during the process of being pressed. The contact position of the drive part 55 and the slider 53 will generate a backward thrust on the slider 53. If the pressing is continued, the contact point of the drive part 55 and the slider 53 will generate relative movement, and the slider 53 will continue to generate a backward thrust. The movement of the slider 53 will drive the movement of the insulating connecting rod 30 inserted into its through hole, and the movement of the insulating connecting rod 30 will pull the electrode head 10 to close. In this process, the movement of the electrode head 10 is associated with the handle button 50, which can form a good force feedback. When the electrode head 10 is closed, the handle button 50 will feel a certain resistance. This will have certain benefits for the operator and will improve the operation accuracy.

[0063] The insulating connecting rod 30 can rotate within the slider 53 at a certain angle under the action of external force. At the same time, the insulating connecting rod 30 needs to be limited to prevent relative sliding with the slider 53 during the backward stretching process, that is, during the closing process of the electrode head. If sliding occurs, it will cause structural failure. This limiting structure can be Figure 5 and Fig. 22 Two solutions are implemented, and both solutions can achieve position limiting while allowing the insulating connecting rod 30 and the slider 53 to rotate relative to each other under the action of external force.

[0064] The present invention adopts a 3.2 mm stainless steel tube and a special structural design of the handle button 50. In particular, the present invention designs the handle button 50 to be more slender, so that the user can pinch it with one hand and the movement amplitude is smaller. At the same time, anti-slip grooves 57 and grooves that fit the hand shape are added to the handle button 50, making it more convenient for the operator during operation. In addition, the handle button 50 also has an elastic reset tongue 52 that assists in resetting. The handle button 50 is an injection molded part made of a polymer material.

[0065] The present invention has the following advantages:

[0066] Advantage 1: The rod diameter is slender, which facilitates surgical operation.

[0067] The present invention adopts the outer tube 20 as a stainless steel outer rod with a diameter of 3.2 mm, so that the device can enter a narrow lesion site more easily.

[0068] Advantage 2: Simple structure and low manufacturing cost. The handle control structure and the action mechanism of the electrode head of the present invention are simplified and as compact as possible. At the same time, the polymer material used in some connecting parts effectively improves the insulation properties, reduces the manufacturing process, and can effectively reduce the cost.

[0069] Advantage 3: The electrode head 10 can be rotated to meet different surgical requirements. The outer tube 20 and the insulating connecting rod 30 of the present invention can be rotated to a certain angle under external force, thereby allowing the operator to rotate the electrode head 10 to a certain angle according to actual conditions to perform surgery.

[0070] Advantage 4: The outer tube 20 can be bent at an appropriate angle to meet different surgical requirements. The outer tube 20 of the present invention can be bent appropriately without affecting the function. The structural characteristics of the present invention are that the outer tube 20 is a metal tube, and the internal insulating connecting rod 30 is made of a polymer material with a certain degree of flexibility. At the same time, there is a certain gap between the outer diameter of the outer tube 20 and the inner diameter of the insulating connecting rod 30, so the instrument rod can allow the outer tube 20 to achieve the designed function under a certain deformation. Based on the above characteristics of the present invention, the present instrument allows the operator to appropriately bend the metal rod of the instrument when in use, so as to better perform the operation.

[0071] Advantage 5: The electrode head 10 is divided into two types: single action and double action. The opening and closing angle of the electrode head 10 is large enough and has a certain strength. The present invention can realize two kinds of electrode head action schemes, one is single action and the other is double action. As mentioned above, both single action and double action can realize a larger opening angle, which is more conducive to the clamping and hemostasis operation of the hemostatic tissue.

[0072] Advantage 6: The operation feedback at the handle is good, the action is more precise, the handle is easy to hold, and the operation range is small. The handle button 50 of the present invention adopts the structure described above, so that the action of the handle button 50 can be linked with the action of the electrode head 10, and the force of the electrode head 10 can be fed back to the operator's fingers, which is beneficial to the operator's use. At the same time, the action range of the handle button 50 is reduced, so that the operator's fingers do not need to use a large action range to achieve the operation.

[0073] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A transnasal bipolar hemostatic electrode, characterized in that: It comprises an electrode head, an outer tube, an insulating connecting rod, a handle button, a handle shell, a front collar cap and a rear collar cap, wherein the electrode head is located at one end of the outer tube, the other end of the outer tube is connected to the front collar cap, the front collar cap is screwed to the handle shell, the handle button is arranged on the handle shell, the other end of the handle shell is spirally connected to the rear collar cap, the insulating connecting rod is arranged inside the outer tube, one end of which is connected to the electrode head, and the other end passes through the front collar cap and extends to the inside of the handle shell; The handle button includes a hand-holding part, an elastic reset tongue and a driving part; wherein, the tail end of the handle button is provided with a fixed axis hole that cooperates with the fixed axis of the handle shell, and the handle button can rotate around the fixed axis of the handle shell; a slider is installed inside the handle shell, and the driving part is provided with a driving surface, and the driving surface is in contact with the slider, and the fixed axis hole is arranged at one end of the hand-holding part, and a rotating shaft is installed on the fixed axis hole. Under the pressing action of external force, the hand-holding part can make the elastic reset tongue rotate, and the driving surface drives the slider to slide in the direction of the fixed axis hole, so that the spring on one side of the slider is compressed and deformed, and at the same time drives the insulating connecting rod to move in the direction of the rear collar cap.

2. A transnasal bipolar hemostatic electrode according to claim 1, characterized in that: The upper surface of the hand-held part is provided with anti-slip grooves.

3. The nasal bipolar hemostatic electrode according to claim 1, characterized in that: The insulating connecting rod includes an insulating connecting rod head section. For the double-moving electrode head structure, a first cam, a second cam and a first limiting axis length through hole are provided on both sides of the width direction of the insulating connecting rod head section. The first limiting axis length through hole is in the shape of a long strip and passes through the insulating connecting rod. For the single-moving electrode head structure, a first cam is provided on one side of the insulating connecting rod head section. The first cam and the second cam are both driving cams for driving the electrode head.

4. A transnasal bipolar hemostatic electrode according to claim 3, characterized in that: The outer tube includes an outer tube head section, and the electrode head includes a movable electrode head and a stationary electrode head. An electrode rotation axis is provided inside the outer tube head section. The number of the electrode rotation axis is one or two. When the number of the electrode rotation axis is one, the movable electrode head can rotate around the electrode rotation axis. When the number of the electrode rotation axis is two, the movable electrode head and the stationary electrode head can respectively rotate around the corresponding electrode rotation axis.

5. A transnasal bipolar hemostatic electrode according to claim 4, characterized in that: For the double-moving electrode head structure, the outer tube head section is also provided with a limiting hole, and the limiting hole is located above the electrode rotation axis. There are two limiting holes, which are symmetrically distributed on both sides of the outer tube head section; for the single-moving electrode head structure, that is, when the number of the electrode rotation axis is one, the outer tube head section is limited by the size of the outer tube.

6. A transnasal bipolar hemostatic electrode according to claim 5, characterized in that: For the double-moving electrode head structure, the second protruding shaft is arranged on the opposite side of the first protruding shaft.

7. A transnasal bipolar hemostatic electrode according to claim 6, characterized in that: The movable electrode head is provided with an electrode shaft hole, a limit shaft through hole and a driving groove; wherein the limit shaft through hole is provided between the electrode shaft hole and the driving groove; when the electrode head is a double movable electrode head, a limit shaft is inserted into the limit hole of the outer tube head section, and then the limit shaft passes through the limit shaft through hole of the movable electrode head, the limit shaft long through hole of the insulating connecting rod head section and the limit shaft through hole of the other movable electrode head in sequence, and then overlaps with the other limit hole of the outer tube head section.

8. The transnasal bipolar hemostatic electrode according to claim 4, characterized in that: For the single-moving electrode head structure, a rotating shaft hole and an open slide groove are provided on the moving electrode head. The rotating shaft hole cooperates with the electrode rotating shaft, and the open slide groove cooperates with the first convex shaft. The single-moving electrode head is pushed to rotate around the electrode rotating shaft through the first convex shaft.

9. The transnasal bipolar hemostatic electrode according to claim 1, characterized in that: It also includes a first limiting structure, which is arranged at the tail end of the insulating connecting rod, including a limiting protrusion and a limiting groove, the limiting protrusion is arranged on the surface of the insulating connecting rod, and the limiting groove is arranged on the surface of the slider facing the insulating connecting rod, or the limiting protrusion is arranged on the surface of the slider facing the insulating connecting rod, and the limiting groove is arranged on the surface of the insulating connecting rod, and the limiting is achieved by clamping the limiting protrusion into the limiting groove.

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