CN112842509A

CN112842509A - Tool bit for plasma scalpel and plasma scalpel

Info

Publication number: CN112842509A
Application number: CN202110155310.0A
Authority: CN
Inventors: 杨贵; 李陨; 相能斌; 徐战军; 崔进
Original assignee: Shenzhen Viewall Medical Technology Co ltd
Current assignee: Shenzhen Viewall Medical Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-05-28

Abstract

The embodiment of the invention discloses a cutter head for a plasma scalpel and the plasma scalpel, wherein the cutter head comprises a tubular cutter body, an insulating structural part and an electrode which are sequentially arranged at one end of the cutter body, and a tube body axially arranged in a through hole of the cutter body, the tube body penetrates through the through hole of the insulating structural part and is arranged on the electrode, the electrode is arranged on the insulating structural part, a liquid outlet communicated with the inside of the tube body is arranged at the front end of the electrode, and at least one suction port communicated with the inside of the cutter body is arranged on the cutter body. Compared with the prior art, the cutter head of the plasma scalpel and the plasma scalpel provided by the embodiment of the invention have the four-in-one functions of flushing, attracting, cutting, ablating and coagulating, effectively reduce the replacement frequency of instruments in the operation process, improve the visual field definition of the operation, enable the operation to be more continuous and accurate, shorten the operation time and have lower probability of occurrence of complications.

Description

Tool bit for plasma scalpel and plasma scalpel

Technical Field

The invention relates to the technical field of medical instruments, in particular to a cutter head for a plasma scalpel and the plasma scalpel.

Background

The plasma scalpel utilizes the energy generated by the plasma generator to form a highly-gathered plasma thin layer between the plasma scalpel and the tissue of a patient, the plasma in the thin layer is accelerated by an electric field, enough energy is provided to break organic molecular chains in the tissue, and the tissue is decomposed into simple molecules, atoms or low-molecular-weight gas, so that the ablation and cutting functions are achieved, the treatment temperature is low (40-70 ℃) because the current does not directly flow through the tissue and the tissue generates little heat, the activity of cells can be kept, and meanwhile, the blood vessel can be rapidly contracted and coagulated due to the insulation effect of the plasma and the heat effect of the current, so that the function of hemostasis in the operation is realized.

Among the prior art, the tool bit side position is located to the liquid outlet of the tool bit of plasma scalpel, and normal saline flows from the liquid outlet when coming out, does not have the function of washing, and the direction sense is relatively poor, and simultaneously in the use of plasma scalpel, the scope pollutes easily, must take out the art chamber repeatedly and wash, influences the operation continuity, increases bleeding risk and operation risk, makes the operation increase for a long time, reduces operation efficiency. In addition, the cleaning of the operation cavity is assisted by a medical injector, the cleaning force cannot be controlled and continuous cleaning cannot be realized, the cleaning effect of the operation cavity is poor, the definition of the operation visual field is not high, and the electrocoagulation accuracy is influenced. The attraction mouth of tool bit is located the tool bit front end, annotates the liquid and can be inhaled futilely by the attraction mouth very fast, can't realize the tool bit and operate in normal saline, so that realize the dive effect that the doctor wanted, the operation is inconvenient, can't realize washing, attract, the cutting melts, the function of blood coagulation four unifications, the apparatus change frequency of operation in-process is higher, operation field of vision definition is lower, the continuity of operation is relatively poor, the operation is accurate inadequately, operating time is longer, the probability that the complication appears is higher.

Disclosure of Invention

The embodiment of the invention aims to provide a cutter head for a plasma scalpel and the plasma scalpel, and aims to solve the problems that in the prior art, the functions of flushing, suction, cutting, ablation, electrocoagulation and coagulation and four-in-one cannot be realized, the instrument replacement frequency in the operation process is high, the operation visual field definition is low, the operation continuity is poor, the operation is not accurate enough, the operation time is long, and the probability of occurrence of complications is high.

In order to achieve the purpose, the invention discloses a cutter head for a plasma scalpel, which comprises a tubular scalpel body, an insulating structural part and an electrode which are sequentially arranged at one end of the scalpel body, and a tube body axially arranged in a through hole of the scalpel body, wherein the tube body penetrates through the through hole of the insulating structural part and is arranged on the electrode, the electrode is arranged on the insulating structural part, the front end of the electrode is provided with a liquid outlet communicated with the inside of the tube body, and the scalpel body is provided with at least one suction port communicated with the inside of the scalpel body.

As a preferable scheme of the embodiment of the invention, a bending part is arranged at the rear end of the cutter body, an opening is formed in the bending part, and the pipe body extends out of the opening and is connected with an external liquid injection structure.

As a preferable solution of the embodiment of the present invention, the electrode includes an electrode body and an electrode connecting portion, and the electrode connecting portion is inserted into the through hole of the insulating structural member and is sealed and fixed with the tube body and the insulating structural member to form a flushing passage and an electrical connection passage.

As a preferable mode of the embodiment of the present invention, the plurality of suction ports are provided, and the suction ports are uniformly distributed on the cutter body at intervals.

As a preferable scheme of the embodiment of the present invention, the suction ports are provided with a plurality of circles, and the suction ports between two adjacent circles are aligned with each other or staggered with each other.

As a preferable aspect of the embodiment of the present invention, the electrode is in a sheet shape or a columnar shape.

On the other hand, the embodiment of the invention also discloses a plasma scalpel, which comprises a scalpel handle, a scalpel head arranged at one end of the scalpel handle, and a liquid injection structure, an attraction structure and a signal transmission structure which are arranged at the other end of the scalpel handle, wherein the scalpel head for the plasma scalpel is adopted as the scalpel head, a liquid outlet on an electrode, an insulating structural part and a tube body form a liquid injection channel, and an attraction port on the scalpel body and a pipeline between the scalpel body and the tube body form an attraction channel.

As a preferable solution of the embodiment of the present invention, the liquid injection structure and the suction structure are tubular structures.

As a preferable scheme of the embodiment of the present invention, an adjusting switch is disposed on the handle, and the adjusting switch is used for adjusting a liquid injection flow rate of the liquid injection structure and/or a suction flow rate of the suction structure.

As a preferable scheme of the embodiment of the present invention, the liquid injection structure and/or the suction structure is provided with an adjusting switch, and the adjusting switch is used for adjusting a liquid injection flow rate of the liquid injection structure and/or a suction flow rate of the suction structure.

The embodiment of the invention has the following beneficial effects:

compared with the prior art, the tool bit for the plasma scalpel and the ion scalpel provided by the embodiment of the invention have the four-in-one functions of flushing, attracting, cutting, ablating and coagulating, effectively reduce the replacement frequency of instruments in the operation process, improve the visual field definition of the operation, enable the operation to be more consistent, enable the operation to be more accurate, shorten the operation time and enable the probability of occurrence of complications to be lower.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a plasma scalpel according to a first embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view B of fig. 1.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a partial cross-sectional view of an alternative electrode configuration in accordance with an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a cutter body according to a first embodiment of the present invention.

Fig. 6 is a partially enlarged view of C in fig. 5, in which the suction port is a square hole and two adjacent circles are aligned.

Fig. 7 is a partially enlarged schematic view of C in fig. 5, in which the suction ports are square holes and are arranged in a staggered manner between two adjacent circles.

Fig. 8 is a partially enlarged view of C in fig. 5, in which the suction port is a circular hole and two adjacent circles are aligned.

Fig. 9 is a partially enlarged schematic view of C in fig. 5, in which the suction ports are circular holes and are arranged in a staggered manner between two adjacent circles.

Fig. 10 is a partially enlarged schematic view of C in fig. 5 in which the suction port is a spiral hole.

Fig. 11 is a partially enlarged schematic view of C in fig. 5 in which the suction port is a triangular hole.

Fig. 12 is a partial cross-sectional view of a shank according to a first embodiment of the invention.

Fig. 13 is a schematic structural view of a plasma scalpel according to a second embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, for the convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.

Example one

As shown in fig. 1-3, an embodiment of the present invention provides a cutting head for a plasma scalpel, including a tubular scalpel body 4, an insulating structural member 2 and an electrode 1 mounted at one end of the scalpel body 4, and a tube body 3 axially disposed in a through hole of the scalpel body 4, wherein the tube body 3 is mounted in the through hole of the electrode 1 through the through hole of the insulating structural member 4, and is encapsulated with an adhesive; the electrode 1 is arranged in the insulating structural part 2 and is packaged by adhesive; the electrode comprises an electrode body 1, and is characterized in that a liquid outlet 13 is arranged at the front end of the electrode 1, the liquid outlet 13 is communicated with the interior of the tube body 3, at least one suction port 10 communicated with the interior of the cutter body 4 is arranged on the cutter body 4, the tube body 3 is a metal tube, when the tube body 3 is arranged in a through hole of the electrode 1, the tube body 3 is electrically connected with the electrode 1, and the liquid outlet 13 is preferably arranged in the axial direction of the electrode 1.

In a preferred embodiment of the present invention, the electrode 1 is cylindrical, the front end of the electrode 1 is hemispherical, the insulating structural member 2 is annular, and the insulating layer is disposed outside the tube 3 for insulating. The electrode 1 may also be a sheet or other suitable shape, and the front end of the electrode 1 may also be a bevel structure, which is not limited by the present invention.

Because liquid outlet 13 sets up the front end at electrode 1, and communicate with the outside on the follow electrode 1 front end terminal surface, liquid in the body 3 can be convenient from the liquid outlet 13 blowout that sets up on electrode 1's the front end terminal surface, it needs to explain, liquid can be medical water or normal saline in the body 3, medical water or normal saline used in the operation have the forward type to the patient when flowing out from body 3 and wash the function, can realize accurate washing, the direction is felt betterly, can realize accurate tissue position and contaminated scope camera lens function of bleeding in the washing operation according to surgeon's demand, effectual field of vision definition and the scope definition in the operation process that has improved, avoid the scope pollution, and convenient for operation reduces the operation risk, and the operation efficiency is improved.

Because the cutter head is also provided with the suction port 10, the waste liquid can be sucked off and discharged in time by the suction port 10, and the suction port 10 is arranged on the side surface and is not at the same position as the liquid outlet 13, so that the cutter head can not be sucked to be dried by the suction port 10 after liquid injection, the operation of the cutter head in medical water or physiological saline can be realized, the diving effect required by a doctor can be realized, and the operation is convenient.

Because the plasma cutter head has insulation effect and heat effect of current, the blood vessel can be quickly contracted and coagulated, and the blood coagulation function in the operation is realized. Therefore, the cutter head provided by the embodiment of the invention has the four-in-one functions of flushing, attracting, cutting, ablating and coagulating, effectively reduces the replacement frequency of instruments in the operation process, improves the visual field definition of the operation, ensures that the operation is more consistent and more accurate, shortens the operation time and reduces the probability of occurrence of complications.

In the embodiment of the invention, the insulating structural member 2 comprises a structural member body 21 and a structural member connecting part 22 arranged on one end of the structural member body 21 close to the cutter body 4, the structural member connecting part 22 is inserted into the through hole of the cutter body 4 and is fixedly connected with the inner wall of the cutter body 4 in a sealing way, the modes of tight fit or bonding and the like can be adopted, the insulating structural member 2 is axially provided with a through hole 23, the tube body 3 passes through the through hole 23 to be in clearance fit with the insulating structural member 2, the structural member body 21 and the structural member connecting part 22 are preferably cylindrical and are provided with through holes, an insulating layer is arranged outside the tube body 3 for insulating treatment, the tube body 3 passes through the through hole arranged on the insulating structural member 2, so that the.

The electrode 1 comprises an electrode body 11 and an electrode connecting part 12 arranged on the electrode body 11 and close to one end of the insulating structural part 2, wherein the electrode connecting part 12 is inserted into a gap between the tube body 3 and the insulating structural part 2 and is respectively fixedly connected with the tube body 3 and the insulating structural part 2 in a sealing way to form a flushing passage and an electric connecting passage, the modes of tight fit, bonding and the like can be adopted, the connection is firm, water leakage can be prevented, the electrode 1 can be shared by the electrode connecting part, the plasma hand knife can be made into a miniaturized medical instrument, the electrode body 11 and the electrode connecting part 12 are preferably cylindrical, namely, the tube body 3 is assembled in a through hole of the electrode 1 and is packaged by using an adhesive. One end of the tube body 3 close to the electrode 1 extends out of the cutter body 4, the liquid outlet 13 of the electrode 1 is a through hole arranged in the axial direction of the electrode 1, and one end of the through hole is sleeved on the tube body 3 and is fixedly connected in a sealing way; the end part of the electrode body 11 far away from the cutter body 4 is an arc-shaped surface, namely, the electrode body is hemispherical and is provided with a through hole, and the electrode body is attractive and smooth in appearance.

As shown in fig. 4, the front end of the electrode 1 in the embodiment of the present invention may also be set as an arc surface which is obliquely arranged and is recessed inward, and the liquid outlet 13 is arranged on the arc surface, so that the electrode 1 in the structure can realize functions of precise flushing, precise cutting ablation, and blood coagulation.

As shown in fig. 5 and 12, the rear end of the cutter body 4 is provided with a bending portion 41, a side surface of the bending portion 41 is provided with an opening 411, the tube 3 extends out of the opening 411 and is connected in a sealing manner, and one end of the tube 3 extending out of the opening 411 is used for being connected with an external liquid injection structure. The bent part 41 is arranged, so that the liquid injection channel is a straight line, the liquid injection resistance is small, the flow speed is high, and the flushing effect is good.

As shown in FIGS. 6 to 11, as a preferred embodiment of the present invention, a plurality of the suction ports 10 are provided, the plurality of suction ports 10 are provided in a plurality of turns at regular intervals in the axial direction of the cutter body 4, and the suction ports 10 in each turn are distributed at regular intervals in the circumferential direction of the cutter body 4, so that it is possible to realize

In the preferred embodiment of the present invention, the suction ports 10 between the adjacent two rings are aligned with each other or misaligned with each other.

In the embodiment of the present invention, the suction port 10 may be square, circular, triangular, spiral, or drop-shaped, and may have other shapes as needed.

Because the suction port 10 is arranged on the outer wall of the cutter body 4, and a plurality of circles are arranged along the outer wall of the cutter body 4, each circle is provided with a plurality of suction ports 10, which is equivalent to that the suction ports have suction in the 360-degree direction of the outer circle of the cutter body 4, the suction range is large, the suction amount is large, and multi-level suction is realized, different negative pressures can be formed because the insertion depths of the cutter body are different, the cutter body can realize different suction amounts according to different negative pressures, polluted operation waste liquid can be sucked out of the body in time according to requirements, a good operation fluid circulating system is formed, the visual field definition and the endoscope definition in the operation process are effectively improved, a superior operation environment is brought to an operator, misoperation caused by unclear visual field is avoided, meanwhile, the operation time for the endoscope to move out of the body to clean the mirror in a reciprocating manner in the operation process is greatly reduced, and the operation, the risk of surgery is reduced. Meanwhile, the cutting in normal saline by a doctor and the diving technology of blood coagulation ablation can be realized, the operation is convenient, the operation efficiency is improved, and the better medical effect is achieved.

As shown in fig. 1, in addition, the present invention also provides a plasma scalpel, which includes a handle 5, a blade disposed at one end (front end) of the handle 5, a liquid injection structure 9 disposed at the other end (rear end) of the handle 5, a signal transmission structure 8, an attraction structure 7, an adjusting switch 6 disposed on the handle 5, and the blade of the plasma scalpel.

In the present embodiment, the liquid injection structure 9 and the suction structure 7 are tubular structures.

In the embodiment of the invention, the cutter handle 5 is a hollow structure, anti-skid lines are arranged on the surface of the cutter handle, the front end of the cutter handle 5 is provided with a cutter body mounting hole, the rear end of the cutter handle is provided with a suction structure mounting hole, a liquid injection structure hole and a signal transmission structure mounting hole, the cutter body 4 penetrates through the front end mounting hole of the cutter handle 5, the suction structure 7 is inserted into the cutter body 4, the liquid injection structure 9 is inserted into the pipe body 3, and the butt joint position is sealed by using an adhesive in a sealing. The liquid outlet 13 of the electrode 1, the insulating structural member 2 and the tube body 3 form a liquid injection channel on a straight line. The suction port 10 of the cutter body 4 and the pipeline between the cutter body 4 and the pipe body 3 form a suction passage.

When the electrode is used, the physiological saline is input through the liquid injection structure 9 and flushed out from the liquid outlet 13 at the front end of the electrode 1, the part needing to be cleaned is cleaned accurately, and the waste liquid is sucked away from the suction port 10 on the side surface of the cutter body 4 and discharged from the suction structure.

As the preferred embodiment of the invention, the adjusting switch 6 arranged on the knife handle 5 is used for adjusting the liquid injection flow of the liquid injection structure and/or the suction flow of the suction structure, the flow of injected liquid and the flow of sucked waste liquid can be adjusted according to requirements, and the use is convenient.

The signal transmission structure 8 is a cable which is divided into an ablation signal transmitting line and an ablation signal return line, the ablation signal transmitting line is connected with the tube body 3 and then connected with the electrode 1, and the ablation signal return line is connected with the cutter body 4. The liquid injection structure 9 is communicated with the liquid outlet 13, and the suction structure 7 is communicated with the suction port 10.

Example two

As shown in fig. 13, as a preferred embodiment of the present invention, an adjusting switch 6 is disposed on the liquid injection structure 9 and/or the suction structure 7, and the adjusting switch 6 is used to adjust a liquid injection flow rate of the liquid injection structure and/or a suction flow rate of the suction structure, so as to adjust flow rates of injected liquid and sucked waste liquid according to requirements, which is convenient to use.

The above embodiments and drawings are only for illustrating the technical solutions of the present invention and do not limit the present invention. It should be noted that, a person skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part or all of the technical features, and such modifications or substitutions are included in the scope of the claims of the present invention.

Claims

1. A blade head for a plasma scalpel, comprising: the electrode comprises a tubular cutter body, an insulating structural part and an electrode, wherein the insulating structural part and the electrode are sequentially arranged at one end of the cutter body, the tube body is axially arranged in a through hole of the cutter body, the tube body penetrates through the through hole of the insulating structural part and is arranged in the through hole of the electrode, the electrode is arranged on the insulating structural part, a liquid outlet communicated with the inside of the tube body is formed in the front end of the electrode, and at least one suction port communicated with the inside of the cutter body is formed in the cutter body.

2. The cutter head for a plasma surgical knife according to claim 1, wherein: the rear end of the cutter body is provided with a bending part, the bending part is provided with an opening, and the pipe body extends out of the opening and is in sealing connection with an external liquid injection structure.

3. The cutter head for a plasma surgical knife according to claim 1, wherein: the electrode comprises an electrode body and an electrode connecting part, wherein the electrode connecting part is inserted into the through hole of the insulating structural part and is sealed and fixed with the tube body and the insulating structural part to form a flushing passage and an electric connection passage.

4. The blade head for a plasma surgical knife according to any one of claims 1 to 3, wherein: the suction ports are arranged in a plurality of numbers, and the suction ports are distributed on the cutter body at intervals.

5. The blade head for a plasma surgical knife according to any one of claims 1 to 3, wherein: the suction ports are provided with a plurality of circles, and the suction ports between two adjacent circles are aligned or staggered with each other.

6. The cutter head for a plasma surgical knife according to claim 1, wherein: the electrode is in a sheet or column shape.

7. A plasma scalpel, characterized in that: the plasma scalpel comprises a hilt, a tool bit arranged at one end of the hilt, and a liquid injection structure, an attraction structure and a signal transmission structure which are arranged at the other end of the hilt, wherein the tool bit is the tool bit for the plasma scalpel according to any one of claims 1 to 6, a liquid injection channel is formed by a liquid outlet on an electrode, an insulating structural part and a tube body, and an attraction port on the knife body and a pipeline between the knife body and the tube body form an attraction channel.

8. The plasma surgical knife of claim 7, wherein: the liquid injection structure and the suction structure are tubular structures.

9. The plasma surgical knife of claim 7, wherein: the liquid injection device is characterized in that the knife handle is provided with an adjusting switch, and the adjusting switch is used for adjusting the liquid injection flow of the liquid injection structure and/or the suction flow of the suction structure.

10. The plasma surgical knife of claim 7, wherein: and the liquid injection structure and/or the suction structure is/are provided with an adjusting switch, and the adjusting switch is used for adjusting the liquid injection flow of the liquid injection structure and/or the suction flow of the suction structure.