Plasma cutter head for otoendoscope surgery

Abstract

The utility model discloses a plasma cutter head for otoendoscopic surgery, which belongs to the field of medical instruments and comprises a cylindrical shell, a cutter head, a cutter head cover and a cutter head cover. The plasma structure comprises a hemostasis piece and a lead piece which are connected with each other, and the lead piece is connected to the cavity in a sleeving mode; the execution head is communicated with the barrel shell, and the hemostasis piece is connected with the execution head. By means of the arrangement, the external auditory meatus can be used for external auditory meatus skin incision, external auditory meatus flap separation and in-ear fine structure separation, and extra damage to the auditory meatus of a patient cannot be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a plasma cutter head for ear endoscope surgery. Background Art

[0002] The otoscope can observe the structure inside the ear through the external auditory canal, the natural cavity of the ear, and has a wide and high-definition field of view. Compared with a microscope, otoscope surgery usually only requires a surgical incision in the external auditory canal, and can detect subtle anatomical structures and tiny lesions in the ear that are difficult to observe with a microscope. Therefore, otoscope surgery has the characteristics of minimally invasive and thorough removal of lesions, and it is increasingly used in ear surgery. Since otoscope surgery is performed in the narrow external auditory canal, it is necessary to control intraoperative bleeding in a timely manner to obtain a clear surgical field of view. Commonly used surgical instruments in otoscope surgery usually have sharp ends, so that they can be used for external auditory canal skin incisions, external auditory canal flap separation, and separation of delicate structures in the ear. However, the surgical instruments commonly used at present are often prone to bleeding problems during cutting. There are solutions that use plasma electric heating to stop bleeding, but it is easy to cause additional damage to the patient due to electric heating during use.

[0003] Therefore, a cutting instrument is designed that can solve the problem of bleeding caused by cutting inside the patient's ear through an improved plasma cutter head without causing additional damage to the patient. The cutting instrument is specifically a plasma cutter head for ear endoscopic surgery. Utility Model Content

[0004] In order to overcome the problems raised in the background technology, the utility model adopts the following technical solutions:

[0005] The cylindrical shell has a cavity inside; the plasma structure includes a hemostatic component and a lead component connected to each other, and the lead component is sleeved in the cavity; the execution head is connected to the cylindrical shell, and the hemostatic component is connected to the execution head. The plasma cutter head is specifically in the shape of a circular cutting knife or a hook needle, wherein the execution head of the circular cutting knife head is fan-shaped as a whole, and the execution head has an arc-shaped blade, and the arc-shaped blade is arranged at one end of the execution head away from the cylindrical shell.

[0006] Furthermore, the execution head has two end faces arranged in a mirror image; the execution head is connected to the cylinder shell along a connection direction one, the connection direction one intersects with the central axis of the cavity but does not overlap, the end face facing the central axis of the cavity is the outer side face, and the end face away from the central axis of the cavity is the inner side face.

[0007] Further, the hemostatic member is a split wire, and the split wire is annularly attached to the inner side surface of the actuator head. One end of the lead member passes through the cavity and is connected to the hemostatic member. When performing a flap separation operation, the reverse side of the actuator head faces the separated flap, and the inner side surface of the actuator head faces the bleeding tissue at the separation site. Therefore, as the actuator head moves, the hemostatic member can perform plasma cutting and hemostasis on the surrounding tissues around the bleeding site.

[0008] Further, the actuator head is also mirror-symmetrically provided with two side edges, both of which are provided with rounded corners, and the side edges are adjacent to the arc-shaped blade; there is an included angle between the two side edges, and the included angle is not greater than 120°.

[0009] When the plasma knife head is in the shape of a hook needle, the shape of the actuator head is different from the above solution. In this solution, the actuator head is in a cylindrical shape, and the outer contour of the cross-section of the actuator head passing through its own central axis is a trapezoid; the outer diameters of both ends of the actuator head are different, and the end with the larger outer diameter is connected to the cylinder shell, and the hemostatic member extends from the end with the smaller outer diameter of the actuator head.

[0010] Further, the central axis of the actuator head intersects with the central axis of the cylinder shell and has an included angle, and the included angle is not greater than 90°.

[0011] Further, the hemostatic member is an electrothermal needle, and the central axis of the electrothermal needle coincides with the central axis of the actuator head.

[0012] Further, along the central axis of the cylinder shell, the outer diameter of the end of the cylinder shell facing the actuator head is smaller than that of the other end.

[0013] Further, it further includes a connector, and the connector is arranged in the cavity at the end of the cylinder shell facing away from the actuator head, and the connector is connected to the lead member.

[0014] The beneficial effects of the present utility model:

[0015] 1. By providing an actuator head in a fan shape with an arc-shaped blade, it is possible to shovel or scrape a sheet-shaped inner ear flap after separation; by arranging a filamentous hemostatic member on the inner side surface of the fan-shaped actuator head, it is possible to perform plasma hemostasis on the surrounding tissues behind the separation path after the arc-shaped blade has completed the separation of the flap, thus having a good hemostatic effect. Since the hemostatic member is only arranged on the inner side surface of the fan-shaped actuator head, the arc-shaped blade responsible for separating the flap and the reverse side contacting the separated flap will not affect the shape of the separated flap, and the uncut part will not contact the hemostatic member either. Therefore, it can effectively prevent additional harm to the patient, and thus has excellent practical effects.

[0016] 2. By setting up a cylindrical connecting piece and an electrothermal needle, cutting and separating operations can be performed on the fine structures deep in the ear, and after separation, electricity can be conducted to stop bleeding at the bleeding site; and there is a certain degree of bending between the electrothermal needle and the cylinder shell, which can hook out the separated skin flap or other tissues, with convenient operation and low structural complexity, and has good practical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0018] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0019] Figure 2 is Figure 1 the cross-sectional structure diagram of;

[0020] Figure 3 is Figure 2 the partial enlarged structure diagram of part A in;

[0021] Figure 4 is another schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 5 is the schematic diagram of the overall structure after assembling the handle in Embodiment 1;

[0023] Figure 6 is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0024] Figure 7 is Figure 6 the cross-sectional structure diagram of;

[0025] Figure 8 is Figure 7 the partial enlarged structure diagram of part B in;

[0026] Figure 9 is the schematic diagram of the overall structure after assembling the handle in Embodiment 2;

[0027] In the figure, 1. Cylinder shell; 11. Cavity; 2. Plasma structure; 21. Hemostatic part; 211. Electrothermal needle; 22. Lead part; 3. Execution head; 31. Arc blade; 32. Connection direction; 33. Outer side; 34. Inner side; 35. Side edge; 4. Connector; 5. Handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the utility model are clearly and completely described below through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] A plasma knife head for ear endoscope surgery, such as Figures 1-5 As shown, it includes: a barrel 1, which is provided with a cavity 11; a plasma structure 2, which includes a hemostatic piece 21 and a lead piece 22 connected to each other, and the lead piece 22 is sleeved in the cavity 11; an execution head 3, which is connected to the barrel 1, and the hemostatic piece 21 is connected to the execution head 3. The barrel 1 can be connected to a handle 5 with a lead wire arranged inside, and the lead wire is connected to an external power source to make the hemostatic piece 21 energized and heated, so that the bleeding tissue in the patient's ear can be heated and hemostasis can be stopped. In this embodiment, the blade head is in the shape of a circumcision blade as a whole, which is more suitable for the separation of skin flaps.

[0031] In some embodiments of the present application, Figures 1-5 As shown, the execution head 3 is fan-shaped and has an arc-shaped blade 31, which is arranged at the end of the execution head 3 away from the cylinder shell 1. The execution head 3 has two mirror-set end faces; the execution head 3 is connected to the cylinder shell 1 along a connection direction 32-, and the connection direction 32-intersects with the central axis of the cavity 11 but does not overlap, the end face facing the central axis of the cavity 11 is the outer side face 33, and the end face away from the central axis of the cavity 11 is the inner side face 34.

[0032] In some embodiments of the present application, Figures 1-5 As shown, the hemostatic member 21 is a cutting wire, which is annularly attached to the inner side surface 34 of the execution head 3, and one end of the lead member 22 passes through the cavity 11 and is connected to the hemostatic member 21. When performing the flap separation operation, the back side of the execution head 3 faces the separated flap, and the inner side surface 34 of the execution head 3 faces the bleeding tissue at the separation site, so as the execution head 3 moves, the hemostatic member 21 can apply high temperature to the surrounding tissue of the bleeding site.

[0033] In some embodiments of the present application, Figures 1-5As shown, the execution head 3 is also mirror-disposed with two side edges 35 , both of which are provided with rounded corners, and the side edges 35 are adjacent to the arc-shaped blade 31 ; there is an angle between the two side edges 35 , and the angle is not greater than 120°.

[0034] In some embodiments of the present application, Figures 1-5 As shown, the embodiment also includes a connector 4, which is disposed in the cavity 11 at one end of the shell 1 away from the execution head 3, and the connector 4 is connected to the lead member 22. By providing the connector 4, the user can conveniently assemble or disassemble the execution head 3 and the handle 5 of different shapes, so as to select and assemble the execution head 3 according to the requirements of flap separation or flap hooking during clinical treatment.

[0035] Example 2

[0036] A plasma knife head for ear endoscope surgery, such as Figures 6-9 As shown, it includes: a cylinder shell 1, which has a cavity 11 inside; a plasma structure 2, which includes a hemostatic component 21 and a lead component 22 connected to each other, and the lead component 22 is sleeved in the cavity 11; an execution head 3, which is connected to the cylinder shell 1, and the hemostatic component 21 is connected to the execution head 3.

[0037] Different from the first embodiment, the plasma cutter head in this embodiment is hook-shaped, and does not have the flat shape and sharp edge of the circular cutter-shaped plasma cutter head. In this solution, the plasma structure 2 passes through the execution head 3, and the part of the plasma structure 2 extending from the execution head 3 is needle-shaped, such as Figures 6-9 As shown, the execution head 3 is cylindrical, and the outer contour of the cross section of the execution head 3 passing through its own central axis is a trapezoid; the outer diameters of the two ends of the execution head 3 are different, the end with a larger outer diameter is connected to the cylinder shell 1, and the hemostatic member 21 extends from the end with a smaller outer diameter of the execution head 3. The central axis of the execution head 3 intersects with the central axis of the cylinder shell 1 and has an angle, which is not greater than 90°. The hemostatic member 21 is an electric heating needle 211, and the central axis of the electric heating needle 211 coincides with the central axis of the execution head 3. Along the central axis of the cylinder shell 1, the outer diameter of one end of the cylinder shell 1 facing the execution head 3 is smaller than the outer diameter of the other end.

Claims

1. A plasma knife head for ear endoscope surgery, characterized in that, Comprising: A cylindrical shell with a cavity provided inside; A plasma structure including a hemostatic member and a lead member connected to each other, and the lead member is sleeved in the cavity; An execution head, the execution head is in communication with the cylindrical shell, and the hemostatic member is connected to the execution head.

2. The plasma knife head for ear endoscope surgery according to claim 1, characterized in that, The execution head is fan-shaped, and the execution head has an arc-shaped blade, and the arc-shaped blade is provided at one end of the execution head facing away from the cylindrical shell.

3. The plasma knife head for ear endoscopic surgery according to claim 2, characterized in that, The execution head has two end faces arranged in mirror symmetry; the execution head is connected to the cylindrical shell along a first connection direction, and the first connection direction intersects but does not coincide with the central axis of the cavity. The end face facing the central axis of the cavity is the outer side face, and the end face facing away from the central axis of the cavity is the inner side face.

4. The plasma knife head for ear endoscopy surgery according to claim 3, characterized in that, The hemostatic member is a splitting wire, and the splitting wire is annularly attached to the inner side face of the execution head, and one end of the lead member penetrates out of the cavity and is connected to the hemostatic member.

5. The plasma knife head for ear endoscopy surgery according to claim 4, characterized in that, The execution head is also provided with two side edges arranged in mirror symmetry, and the side edges are all provided with rounded corners, and the side edges are adjacent to the arc-shaped blade; there is an included angle between the two side edges, and the included angle is not greater than 120°.

6. The plasma knife head for ear endoscope surgery according to claim 1, wherein The execution head is cylindrical, and the outer contour of the cross-section of the execution head passing through its own central axis is trapezoidal; the outer diameters at both ends of the execution head are different, and the end with the larger outer diameter is connected to the cylindrical shell, and the hemostatic member extends out from the end with the smaller outer diameter of the execution head.

7. A plasma knife head for ear endoscope surgery according to claim 6, characterized in that, The central axis of the execution head intersects with the central axis of the cylindrical shell and has an included angle, and the included angle is not greater than 90°.

8. The plasma knife head for ear endoscope surgery according to claim 7, characterized in that, The hemostatic member is an electrothermal needle, and the central axis of the electrothermal needle coincides with the central axis of the execution head.

9. The plasma knife head for ear endoscope surgery according to claim 1, wherein, Along the central axis of the cylindrical shell, the outer diameter of one end of the cylindrical shell facing the execution head is smaller than that of the other end.

10. A plasma knife head for ear endoscope surgery according to claim 1, characterized in that, It further includes a connector, and the connector is arranged in the cavity at one end of the cylindrical shell facing away from the execution head, and the connector is connected to the lead member.

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