Plasma electrode comprising two tool bits
By adopting a dual-head design with a shared tool tube and sliding switch control in the plasma electrode, the problem of large radial size of the dual-head plasma scalpel is solved, and efficient and accurate surgical operations are achieved.
Patent Information
- Application Number
- CN202421831414.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The two cutting heads of the existing double-head plasma scalpel are supported by independent instrument tubes, resulting in a large radial size, affecting the surgical field of view and operation efficiency.
A plasma electrode containing two cutting heads is designed, and an insulated ceramic head and an insulated ceramic tube form a wire channel and an attractive channel. The two cutting heads share the same cutting head, combining a flat electrode head and a cutting rod design, and are equipped with a sliding switch to control the expansion and energy switching of the cutting head.
It realizes large-area cutting and refined surgical operations on a single device, reduces radial size, improves the flexibility and accuracy of the surgery, simplifies the operation process, and reduces the obstruction of the surgical field of view.
Smart Images
Figure CN223126627U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a plasma electrode including two cutter heads. Background Technique
[0002] The basic principle of a plasma surgical system is that plasma energy flows between a working electrode and a return electrode, and a highly concentrated plasma vapor sheath layer is formed around the electrode through the conduction of physiological saline. The plasma sheath layer is composed of a large number of charged particles. After the charged particles are accelerated by an electric field, they generate sufficient energy and have strong oxidizing properties. At a low temperature (40°C - 70°C), the molecular bonds of the target tissue cells are broken, and the tissue is quickly decomposed into low-molecular-weight molecules and atoms, so as to form a real-time and efficient tissue cutting and ablation effect at a lower temperature. Since the surgical temperature can be precisely controlled within the range of 40 - 70°C, and it has the characteristics of high safety, short operation time, small trauma, and short postoperative recovery time. Therefore, in recent years, low-temperature plasma surgical systems have been widely used in the treatment of diseases such as otolaryngology, spinal surgery, gynecology, and anorectal department.
[0003] Commonly used plasma scalpels usually have only one electrode cutter head, and the function is relatively single. When in use, doctors need to change the cutter. Although there are some plasma scalpels with two cutter heads emerging currently, the two cutter heads are respectively supported by independent cutter tubes, resulting in a relatively large radial dimension, which is not conducive to the operation. In addition, compared with a single electrode cutter head, the structure of the two-cutter-head is more likely to cause the surgical field of view to be blocked, further affecting the smooth progress of the operation. Content of the Utility Model
[0004] The purpose of the utility model is to provide a plasma electrode including two cutter heads to solve the problem that the two cutter heads of the existing plasma scalpels with two cutter heads are respectively supported by independent cutter tubes, resulting in a relatively large radial dimension.
[0005] The technical solution for the utility model to solve the above technical problems is as follows:
[0006] A plasma electrode including two cutter heads, which comprises: an electrode head, a cutter bar, and a handle connected in sequence. A connector and a suction pipe are provided at the tail end of the handle;
[0007] The electrode head includes a first cutter head, an insulating ceramic head, an insulating ceramic tube, and a second cutter head. A wire channel and a suction channel are formed between the insulating ceramic head and the insulating ceramic tube. A top platform is provided at one side end of the insulating ceramic head. The first cutter head is inserted into the wire channel through a suction hole opened on the top platform; a cutter head accommodation cavity is opened below the top platform and the suction channel, and the second cutter head is arranged in the cutter head accommodation cavity.
[0008] Preferably, a wire cavity and a suction cavity are provided at the rear of the top platform, and the two chambers of the insulating ceramic tube are respectively communicated with the wire cavity and the suction cavity.
[0009] Preferably, the first cutter head includes a sheet-shaped electrode body and a rod-shaped insertion part. The electrode body is arranged on the top platform, and the insertion part is inserted into the wire channel from the suction hole of the top platform.
[0010] Preferably, the shape of the electrode body is circular, petal-shaped or monkey-face-shaped. There are holes on the electrode body, and the holes, the suction holes of the top platform and the suction channel are communicated with each other.
[0011] Preferably, an external steel pipe is provided outside the insulating ceramic head and the insulating ceramic tube, and a current loop is formed between the exposed end of the external steel pipe and the first cutter head in a physiological saline environment.
[0012] Preferably, the outside of the external steel pipe is wrapped with an external insulating layer.
[0013] Preferably, an electrode switching device is arranged on the handle. The electrode switching device includes a sliding member, a sliding switch and a sliding button. One end of the sliding member is fixed on the switching button of the sliding switch, the other end of the sliding member is fixed to the end of the second cutter head, and the middle section of the sliding member is fixed on the sliding button.
[0014] Preferably, the sliding switch includes six pins. The wires of the first cutter head and the external steel pipe are welded to two of the pins, the wires of the two electrodes of the second cutter head are welded to two of the pins, and the two wires of the connector are welded to the remaining two pins.
[0015] Preferably, the insulating ceramic head is an integrally formed part.
[0016] Preferably, the overall shape of the insulating ceramic head is oval, and the front end face of the insulating ceramic head is set to be inclined.
[0017] The utility model has the following beneficial effects:
[0018] The plasma electrode of the utility model has a double-cutter head configuration, realizing the functions of large-area cutting and fine surgical operation simultaneously on a single device, significantly improving the flexibility and efficiency of the operation. Compared with the traditional single-cutter head electrode, there is no need to replace electrodes of different specifications during the operation, saving operation time and accelerating the operation process.
[0019] At the same time, the two cutter heads are compactly arranged in the same cutter tube, effectively reducing the radial dimension of the electrode head and making the surgical operation more accurate.
[0020] In addition, the flat design of the electrode head and the tool shank (with an oval cross-section) can minimize the obstruction of the surgical field during the operation, providing a clearer and broader view for the doctor and improving the accuracy and success rate of the operation.
[0021] The present utility model also specially designs a sliding switch for simultaneously controlling the telescoping of the second tool head and the switching of energy, simplifying the surgical operation process and further improving the efficiency and controllability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is the overall structure diagram of the plasma electrode;
[0023] Figure 2 is the cross-sectional view of the tool head;
[0024] Figure 3 is the structure diagram of the insulating ceramic head;
[0025] Figure 4 is the state diagram when the second tool head extends;
[0026] Figure 5 is the structure diagram of the sliding switch inside the handle;
[0027] Figure 6 is the flat structure diagram of the tool head and the tool shank.
[0028] Figures 1 to 6 The reference numerals shown in the figures are respectively represented as: 1 - electrode head; 11 - first tool head; 12 - insulating ceramic head; 121 - top platform; 122 - wire cavity; 123 - suction cavity; 124 - tool head receiving cavity; 13 - insulating ceramic tube; 14 - second tool head; 15 - external steel tube; 16 - external insulating layer; 2 - tool shank; 3 - handle; 31 - sliding member; 32 - sliding switch; 33 - sliding button; 4 - connector; 5 - suction pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0030] In view of the technical problems existing in the background art, the present utility model provides a plasma electrode including two tool heads. On the one hand, the two tool heads are arranged in the same tool tube, which can reduce the radial dimension of the electrode head 1. On the other hand, both the electrode head 1 and the tool shank 2 are flat (such as Figure 6As shown, its cross section is oval), so the surgical field can be avoided from being blocked as much as possible during surgery; in addition, a sliding switch 32 is provided on the handle 3, and the sliding switch 32 is used to simultaneously control the extension and retraction of another blade head and the switching of energy.
[0031] Reference Figures 1-2 The plasma electrode comprises an electrode head 1, a knife rod 2 and a handle 3 which are connected in sequence, and a connector 4 and a suction tube 5 are provided at the tail end of the handle 3. The electrode head 1 comprises a first knife head 11, an insulating ceramic head 12, an insulating ceramic tube 13, a second knife head 14, an external steel tube 15 and an external insulating layer 16.
[0032] Reference Figures 2-3 The insulating ceramic head 12 is an integrally formed component, which includes a top platform 121, a wire cavity 122 arranged at the rear of the top platform 121, a suction cavity 123 arranged at the lower rear of the top platform 121, and a tool head accommodating cavity 124 arranged below the top platform 121 and the suction channel. A suction hole is arranged on the top platform 121, and the suction hole is connected to the wire cavity 122 and the suction cavity 123 respectively.
[0033] The insulating ceramic tube 13 is a double-lumen tube, and its two chambers are respectively connected to the guide wire cavity 122 and the suction cavity 123. The insulating ceramic head 12 and the insulating ceramic tube 13 together form a guide wire channel and a suction channel. In order to avoid blocking the surgical line of sight, the shape of the insulating ceramic head 12 can be further set to an oblong shape, and the front end surface of the insulating ceramic head 12 is set to an inclined shape to facilitate the extension and retraction of the second blade 14.
[0034] Reference Figure 4 The first blade head 11 includes a sheet-shaped electrode body and a rod-shaped insertion part. The shape of the electrode body is arbitrary, such as round, petal-shaped, monkey face-shaped, etc. The rod-shaped insertion part is inserted into the wire channel from the suction hole of the top platform 121, and is connected to the wire in the wire channel, while the sheet-shaped electrode body is arranged on the top platform 121. The external steel pipe 15 is arranged outside the insulating ceramic head 12 and the insulating ceramic tube 13, and the external insulating layer 16 is wrapped outside the external steel pipe 15, and a part of the external steel pipe 15 is exposed near the insulating ceramic head 12, and a wire is welded to the end of the external steel pipe 15. In a physiological saline environment, a current loop can be formed between the exposed external steel pipe 15 and the first blade head 11.
[0035] The second cutter head 14 is disposed within the cutter head receiving cavity 124. The structure of the second cutter head 14 can adopt any one of the bipolar electrode structures in the prior art. For example, the second cutter head 14 can include a first electrode and a second electrode that are arranged side by side and separated by an insulating layer. The first electrode and the second electrode form a current loop in a physiological saline environment. Alternatively, the second cutter head 14 is a spherical electrode, and the spherical electrode and the external steel pipe 15 jointly form a current loop in a physiological saline environment. The second cutter head 14 is pre-bent and capable of elastic deformation. The cutter head receiving cavity 124 also communicates with another steel pipe to jointly form a cutter head receiving channel. When the second cutter head 14 is within the cutter head receiving channel, it is limited and straightened, and returns to its bent state after extending out of the cutter head receiving channel. The end of the second cutter head 14 extends into the handle 3 and is connected to the sliding member 31.
[0036] Referring to Figure 5 , an electrode switching device is provided on the handle 3, which specifically includes a sliding member 31, a sliding switch 32, and a sliding button 33. The structure of the sliding switch 32 is in the prior art. The sliding switch 32 adopted in this embodiment includes six pins and a switching button. The wires of the first cutter head 11 and the external steel pipe 15 are welded to two of the pins, and the wires of the two electrodes of the second cutter head 14 are also welded to two of the pins. The two wires of the connector 4 are welded to the remaining two pins. The sliding switch 32 is fixed within the handle 3. The sliding member 31 is fixed to the switching button on the sliding switch 32 within the handle 3 and is fixed to the sliding button 33 outside the handle 3. Therefore, pushing the sliding button 33 outside the handle 3 forward can drive the sliding member 31 to move forward, causing the second cutter head 14 to extend out of the cutter head receiving channel, and at this time, the switching button also moves forward to connect the second cutter head 14 to the connector 4. That is to say, when the sliding button 33 is at the rear end, the first cutter head 11 operates, and when the sliding button 33 is at the front end, the second cutter head 14 extends out and operates.
[0037] The plasma electrode of the present utility model has a double cutter head configuration, realizing the functions of large-area cutting and fine surgical operation on a single device simultaneously, significantly improving the flexibility and efficiency of the surgery. The innovative design of the electrode head compactly arranges the two cutter heads within the same cutter tube, effectively reducing the radial dimension of the electrode head, making the surgical operation more accurate, reducing the potential damage to the surrounding healthy tissues, and improving the safety of the surgery.
[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A plasma electrode comprising two cutter heads, characterized in that, Comprising: An electrode head (1), a tool shank (2), and a handle (3) connected in sequence, wherein a connector (4) and a suction pipe (5) are provided at the tail end of the handle (3); The electrode head (1) includes a first cutter head (11), an insulating ceramic head (12), an insulating ceramic tube (13), and a second cutter head (14). A wire channel and a suction channel are formed between the insulating ceramic head (12) and the insulating ceramic tube (13). A top platform (121) is provided at one side end of the insulating ceramic head (12). The first cutter head (11) is inserted into the wire channel through a suction hole opened on the top platform (121); a cutter head receiving cavity (124) is opened below the top platform (121) and the suction channel, and the second cutter head (14) is arranged in the cutter head receiving cavity (124).
2. The plasma electrode comprising two cutter heads according to claim 1, characterized in that, A wire cavity (122) and a suction cavity (123) are opened at the rear of the top platform (121). Two chambers of the insulating ceramic tube (13) are respectively communicated with the wire cavity (122) and the suction cavity (123).
3. The plasma electrode comprising two cutter heads according to claim 1, characterized in that, The first cutter head (11) includes a sheet-shaped electrode body and a rod-shaped insertion part. The electrode body is arranged on the top platform (121), and the insertion part is inserted into the wire channel through the suction hole of the top platform (121).
4. The plasma electrode comprising two cutter heads according to claim 3, wherein, The shape of the electrode body is circular, petal-shaped, or monkey-face-shaped. A hole is opened on the electrode body, and the hole, the suction hole of the top platform (121), and the suction channel are communicated with each other.
5. The plasma electrode comprising two cutter heads according to claim 1, wherein An external steel pipe (15) is provided outside the insulating ceramic head (12) and the insulating ceramic tube (13). A current loop is formed between the exposed end of the external steel pipe (15) and the first cutter head (11) in a physiological saline environment.
6. The plasma electrode comprising two cutter heads according to claim 5, wherein, An external insulating layer (16) is wrapped outside the external steel pipe (15).
7. The plasma electrode including two cutter heads according to claim 6, characterized in that, An electrode switching device is provided on the handle (3). The electrode switching device includes a sliding member (31), a sliding switch (32), and a sliding button (33). One end of the sliding member (31) is fixed to the switching button of the sliding switch (32), the other end of the sliding member (31) is fixed to the end of the second cutter head (14), and the middle section of the sliding member (31) is fixed to the sliding button (33).
8. The plasma electrode having two cutter heads according to claim 7, wherein The sliding switch (32) includes six pins. The wires of the first cutter head (11) and the external steel pipe (15) are welded to two of the pins, the wires of the two electrodes of the second cutter head (14) are welded to two of the pins, and the two wires of the connector (4) are welded to the remaining two pins.
9. The plasma electrode comprising two cutter heads according to claim 1, characterized in that, The insulating ceramic head (12) is an integrally formed component.
10. The plasma electrode comprising two cutter heads according to claim 1, characterized in that, The overall shape of the insulating ceramic head (12) is oval, and the front end face of the insulating ceramic head (12) is set to be inclined.