CN218305103U

CN218305103U - Radio frequency plasma surgical knife head and plasma surgical electrode

Info

Publication number: CN218305103U
Application number: CN202221958872.5U
Authority: CN
Inventors: 郭睿; 黄西华; 彭刚
Original assignee: Jiangsu Bonss Medical Technology Co ltd
Current assignee: Bangshi Medical Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-01-17
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a radio frequency plasma surgical knife head and a plasma surgical electrode, which comprises a ceramic head and a plurality of equipotential electrode wires arranged on the front end surface of the ceramic head, wherein the ceramic head is axially provided with a suction hole corresponding to the electrode wires, and the rear end surface of the ceramic head is connected with a knife bar connecting pipe and a guide pipe sleeved on the outer wall of the knife bar connecting pipe; the end part of the cutter bar connecting pipe close to the ceramic head is circumferentially provided with a plurality of water outlets, the flow guide pipe comprises a large-diameter section and a small-diameter section which are sequentially connected, the large-diameter section is positioned at the end part close to the ceramic head, and a flow guide passage communicated with the water outlets is formed between the inner wall of the large-diameter section and the outer wall of the cutter bar connecting pipe. The apopore that cutter arbor connecting pipe circumference set up carries out the drainage through the honeycomb duct, with normal saline from apopore drainage to the wire electrode on for normal saline can evenly wrap up the wire electrode, creates complete plasma and arouses the environment, makes plasma more even, continuous.

Description

Radio frequency plasma surgical knife head and plasma surgical electrode

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to radio frequency plasma surgical knife head and plasma operation electrode.

Background

The statements in this application as to the background of the invention relate to the present application and are merely provided to facilitate an understanding of the present application and may not constitute an admission that the applicant specifically believes or believes that the applicant is prior art at the date of filing the present application for the first time.

With the development of modern medical technology, the low-temperature plasma knife resection is clinically applied, so that the method can be effectively applied to soft tissue operation treatment, the characteristics of the traditional operation can be kept, and the operation effect can be improved. The plasma radio frequency technology protects surrounding tissues for targeted therapy to the maximum extent, has the advantages of accuracy, minimal invasion, small adverse reaction and the like, and is widely used in clinic at present, such as prostatectomy in urology department and the like, and otorhinolaryngology department is mainly used for tonsillectomy, adenoidectomy and the like.

The plasma cutter head used in the low-temperature plasma ablation is integrated with functions of cutting, hemostasis, water inflow and suction, so that the time occupied by frequently replacing surgical instruments is saved to a great extent, the plasma cutter head depends on the stability of plasma generated at one end of the emitter of the cutter head in the cutting process, and the factor mainly depends on the distribution uniformity of the physiological saline at the cutter head. Current plasma tool bit delivery port is unilateral point design, opens a plurality of delivery ports through the utmost point unilateral of front end return circuit, and normal saline is from the delivery port of unilateral to the tool bit, however, normal saline is because its gravity influence under this mode for be difficult to even parcel electrode tool bit, has the dependency to normal saline intake rate simultaneously, and this causes the inconvenience of operation for the art person undoubtedly. Therefore, a plasma surgical electrode which can simply and efficiently wrap an electrode bit uniformly with physiological saline is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radio frequency plasma operation tool bit and plasma operation electrode to solve the unable even parcel tool bit of messenger's normal saline of current plasma tool bit, thereby make plasma produce inhomogeneous problem that influences the operation.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a radio frequency plasma surgical knife head comprises a ceramic head and a plurality of equipotential electrode wires arranged on the front end surface of the ceramic head, wherein the ceramic head is axially provided with a suction hole corresponding to the electrode wires, and the rear end surface of the ceramic head is connected with a knife bar connecting pipe and a flow guide pipe sleeved on the outer wall of the knife bar connecting pipe;

the cutter arbor connecting pipe is close to ceramic head's tip circumference and has seted up a plurality of apopores, and the honeycomb duct is located the tip of being close to ceramic head including the big footpath section and the path section that connect gradually, big footpath section, and the internal diameter of path section matches with the external diameter of cutter arbor connecting pipe, is formed with the water conservancy diversion route that communicates with the apopore between the inner wall of big footpath section and the outer wall of cutter arbor connecting pipe.

The beneficial effects of adopting the above technical scheme are: through a plurality of apopores are seted up to circumference on the cutter arbor connecting pipe, apopore and water conservancy diversion route intercommunication, the water conservancy diversion route plays the water conservancy diversion effect, with normal saline water conservancy diversion to ceramic head and with the contact of wire electrode, because apopore circumference distributes, so evenly parcel with ceramic head from the normal saline that the water conservancy diversion route flows out to make normal saline evenly parcel with the wire electrode, and evenly produce plasma.

Furthermore, the inner diameter of the large-diameter section is larger than the outer diameter of the cutter bar connecting pipe, and the front end face of the large-diameter section and the front end face of the cutter bar connecting pipe are both arranged in parallel with the front end face of the ceramic head.

The beneficial effects of adopting the above technical scheme are: the inner diameter of the large-diameter section is larger than the outer diameter of the cutter bar connecting pipe, so that a flow guide passage can be formed.

Furthermore, the electrode wire is of a U-shaped structure and is arched outwards along the direction far away from the ceramic head.

The beneficial effects of adopting the above technical scheme are: the electrode wires are arranged into a U-shaped structure and are arched outwards, and the electrode wires arched outwards form a suction space to prevent tissues cut in the operation process from blocking a suction hole.

Furthermore, the outer wall of the ceramic head close to the end part of the cutter bar connecting pipe is provided with a limiting bulge.

The beneficial effects of adopting the above technical scheme are: the limiting protrusion is used for limiting the position of the ceramic head.

The utility model also provides a radio frequency plasma electrode of performing operation, include: the scalpel head, still include the cutter arbor, and the handle of being connected with the cutter arbor, the tip that the cutter arbor was kept away from to the handle is connected with the power cable respectively, the vacuum aspiration pipe, and the inlet tube, the tip and the cutter arbor that ceramic head was kept away from to the cutter arbor connecting pipe of scalpel head are connected, the inlet tube runs through handle and cutter arbor in proper order and communicates with the apopore, the vacuum aspiration pipe runs through the handle in proper order, the cutter arbor, and the cutter arbor connecting pipe and communicate with ceramic head's attraction hole, the power cable runs through the handle in proper order, the cutter arbor, cutter arbor connecting pipe and ceramic head are connected with the wire electrode.

The beneficial effects of adopting the above technical scheme are: when the electrode is used, the power cable is connected with a power supply of the radio frequency equipment, the water inlet pipe is connected with a physiological saline pipeline, and the physiological saline reaches the water outlet hole in the cutter bar connecting pipe through the water inlet pipe, the handle and the cutter bar and flows out of the flow guide passage, so that the electrode wire is uniformly wrapped by the physiological saline, plasma is uniformly generated, and then the tissue is cut; attract the hole further to attract the pathological change tissue that cuts and the normal saline that flows into, attract it to the vacuum suction pipe in, realize more effective cutting, the ablation hemostasis to pathological change tissue, promote stability in use.

Furthermore, a suction tube is arranged in the cutter bar, the suction tube penetrates through the cutter bar connecting tube and is communicated with a suction hole in the ceramic head, and the negative pressure suction tube penetrates through the handle and is communicated with the suction tube.

The beneficial effects of adopting the above technical scheme are: the minced tissue reaches the negative pressure suction tube from the suction hole and the suction tube, so that the suction of the damaged tissue is realized.

Further, the cutter arbor includes the metal pipe and wraps up the insulating layer of metal pipe from inside to outside in proper order, and the insulating layer extends to the outer wall of honeycomb duct.

The beneficial effects of adopting the above technical scheme are: the metal tube is used as a loop electrode for generating plasma, an insulating layer is wrapped outside the metal tube and extends to the outer wall of the flow guide tube, so that the electrode wire on the ceramic head can better generate plasma.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a front end circumference of cutter arbor connecting pipe sets up the apopore to carry out the drainage through the honeycomb duct, with normal saline drainage from the apopore to the electrode wire, and make normal saline can evenly wrap up the electrode wire, create complete plasma and arouse the environment, make plasma more even, continuous, when carrying out relevant operations such as flat gland, realize cutting, melting and hemostasis more effectively to the pathological change tissue, promote the stability in use of product;

2. the utility model discloses an electrode wire encircles outward along the direction of keeping away from ceramic head, forms a great attraction space after encircleing outward, prevents to block up the attraction hole at the tissue after the operation in-process cutting.

Drawings

FIG. 1 is a schematic view of a RF plasma surgical tool tip;

FIG. 2 is a schematic view of the structure of a RF plasma surgical knife and a knife bar;

FIG. 3 is a schematic structural view of an RF plasma surgical electrode;

fig. 4 is a schematic structural view of a tool bar and a surgical tool bit of the rf plasma surgical electrode.

In the figure: 1-ceramic head, 11-suction hole, 12-limit protrusion, 2-electrode wire, 3-cutter bar connecting pipe, 31-water outlet hole, 4-guide pipe, 41-large diameter section, 42-small diameter section, 43-guide passage, 5-cutter bar, 51-suction pipe, 52-metal pipe, 53-insulating layer, 6-handle, 7-power cable, 8-negative pressure suction pipe and 9-water inlet pipe.

Detailed Description

The technical solutions of the present invention will be described below clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, a radio frequency plasma surgical knife head comprises a ceramic head 1 and a plurality of equipotential electrode wires 2 arranged on the front end surface of the ceramic head 1, wherein the ceramic head 1 is axially provided with suction holes 11 corresponding to the electrode wires 2, and the suction holes 11 are used for sucking out minced diseased tissues; the rear end face of the ceramic head 1 is connected with a cutter bar connecting pipe 3 and a flow guide pipe 4 sleeved on the outer wall of the cutter bar connecting pipe 3, and the flow guide pipe 4 is used for guiding the physiological saline;

the cutter bar connecting pipe 3 is provided with a plurality of water outlet holes 31 at the end part close to the ceramic head 1 in the circumferential direction, the guide pipe 4 comprises a large-diameter section 41 and a small-diameter section 42 which are sequentially connected, the diameter of the large-diameter section 41 is larger than that of the small-diameter section 42, the large-diameter section 41 is positioned at the end part close to the ceramic head 1, the inner diameter of the small-diameter section 42 is matched with the outer diameter of the cutter bar connecting pipe 3, and a guide passage 43 communicated with the water outlet holes 31 is formed between the inner wall of the large-diameter section 41 and the outer wall of the cutter bar connecting pipe 3; because the inner diameter of the small-diameter section 42 is matched with the outer diameter of the cutter bar connecting pipe 3, the inner diameter of the large-diameter section 41 is larger than the outer diameter of the cutter bar connecting pipe 3, so that a flow guide passage 43 is formed between the large-diameter section 41 and the cutter bar connecting pipe 3, the flow guide passage 43 is annular, when the physiological saline flows into the flow guide passage 43 from the water outlet hole 31, the front end face of the large-diameter section 41 and the front end face of the cutter bar connecting pipe 3 are both arranged in parallel with the front end face of the ceramic head 1, so that the physiological saline can uniformly wrap the electrode wires 2 on the ceramic head 1, and a complete plasma excitation environment is created, so that the plasma is more uniform and continuous; the front end surface of the ceramic head 1 can be an oblique section, and the front end surface of the flow guide pipe 4 and the front end surface of the cutter bar connecting pipe 3 are arranged in parallel with the oblique section. In this embodiment, the draft tube 4 and the knife bar connecting tube 3 are both made of stainless steel tubes, and in other embodiments of this embodiment, other metal tubes may be used.

In order to prevent the tissue cut in the operation process from blocking the suction hole 11, the electrode wire 2 is of a U-shaped structure, and the electrode wire 2 is arched outwards along the direction far away from the ceramic head 1, so that a larger suction space can be used between the electrode wire 2 and the ceramic head 1; the bent portion of the wire electrode 2 is provided on the front end surface of the ceramic head 1, and the plane formed by the bent portion is parallel to the front end surface of the ceramic head 1.

In order to limit the position of the ceramic head 1, a limiting bulge 12 is arranged on the outer wall of the end part of the ceramic head 1 close to the cutter bar connecting pipe 3.

Example 2

As shown in fig. 3 and 4, the present invention further provides a rf plasma surgical electrode, comprising: the surgical knife head further comprises a knife bar 5 and a handle 6 connected with the knife bar 5, the end part of the handle 6 far away from the knife bar 5 is respectively connected with a power supply cable 7, a negative pressure suction tube 8 and a water inlet tube 9, the end part of a knife bar connecting tube 3 of the surgical knife head far away from the ceramic head 1 is connected with the knife bar 5, the water inlet tube 9 sequentially penetrates through the handle 6 and the knife bar 5 and is communicated with a water outlet hole 31, one end of the water inlet tube 9 is connected with a water inlet channel, the water inlet channel is a gap part between the outer wall of the suction tube 51 and the inner wall of the knife bar connecting tube 3, the other end of the water inlet tube 9 is connected with an external physiological saline pipeline, the physiological saline sequentially passes through the water inlet tube 9, the handle 6 and the knife bar 5 to reach the water outlet hole 31 on the knife bar connecting tube 3 and flow out of a flow guide channel 43, so that the physiological saline uniformly wraps the electrode wires 2 and uniformly generates plasma to cut tissues; the negative pressure suction tube 8 sequentially penetrates through the handle 6, the cutter bar 5 and the cutter bar connecting tube 3 and is communicated with a suction hole 11 of the ceramic head 1, and the suction hole 11 further sucks the cut pathological tissue and the inflowing normal saline and sucks the pathological tissue and the inflowing normal saline into the negative pressure suction tube 8; the power cable 7 sequentially penetrates through the handle 6, the cutter bar 5, the cutter bar connecting pipe 3 and the ceramic head 1 and is connected with the electrode wire 2, and the power cable 7 is connected with a power supply of the radio frequency equipment. A suction tube 51 is arranged in the cutter bar 5, the suction tube 51 penetrates through the cutter bar connecting tube 3 and is communicated with the suction hole 11 on the ceramic head 1, the negative pressure suction tube 8 penetrates through the handle 6 and is communicated with the suction tube 51, and the minced tissue sequentially flows from the suction hole 11 to the suction tube 51 and then reaches the negative pressure suction tube 8, so that the suction of the lesion tissue is realized.

As shown in fig. 2, the knife bar 5 comprises a metal tube 52 and an insulating layer 53 wrapping the metal tube 52 from inside to outside, and the insulating layer 53 extends to the outer wall of the guide tube 4. The metal tube 52 is used as a loop electrode for generating plasma, and is wrapped by the insulating layer 53 and extends to the outer wall of the flow guide tube 43, so that the electrode wire 2 on the ceramic head 1 can better generate plasma. The metal pipe 52 in this embodiment is a stainless steel pipe, and other copper pipes, steel pipes, etc. with conductive function may be used in other embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a radio frequency plasma surgical knife head, is in including ceramic head (1), setting a plurality of equipotential wire electrodes (2) of terminal surface before ceramic head (1), ceramic head (1) axial seted up with attract hole (11) that wire electrode (2) correspond, its characterized in that: the rear end face of the ceramic head (1) is connected with a cutter bar connecting pipe (3) and a flow guide pipe (4) sleeved on the outer wall of the cutter bar connecting pipe (3);

the utility model discloses a ceramic tool bar, including ceramic head (1), cutter arbor connecting pipe (3) are close to a plurality of apopores (31) have been seted up to the tip circumference of ceramic head (1), honeycomb duct (4) are including big footpath section (41) and path section (42) that connect gradually, big footpath section (41) are located and are close to the tip of ceramic head (1), the internal diameter of path section (42) with the external diameter of cutter arbor connecting pipe (3) matches, the inner wall of big footpath section (41) with be formed with between the outer wall of cutter arbor connecting pipe (3) with water conservancy diversion route (43) of apopore (31) intercommunication.

2. The radio frequency plasma surgical knife head according to claim 1, characterized in that the inner diameter of the large diameter section (41) is larger than the outer diameter of the knife bar connecting pipe (3), and the front end surface of the large diameter section (41) and the front end surface of the knife bar connecting pipe (3) are arranged in parallel with the front end surface of the ceramic head (1).

3. Radio frequency plasma surgical knife according to claim 1, characterized in that the wire electrode (2) is of a U-shaped configuration and the wire electrode (2) is arched outwards in a direction away from the ceramic head (1).

4. The radio frequency plasma surgical knife head according to claim 1, characterized in that the outer wall of the ceramic head (1) near the end of the knife bar connecting pipe (3) is provided with a limit bulge (12).

5. A radio frequency plasma surgical electrode, comprising: the surgical knife head according to any one of claims 1 to 4, further comprising a knife bar (5) and a handle (6) connected with the knife bar (5), wherein the end of the handle (6) far away from the knife bar (5) is respectively connected with a power cable (7), a negative pressure suction tube (8) and a water inlet tube (9), the end of the knife bar connecting tube (3) far away from the ceramic head (1) is connected with the knife bar (5), the water inlet tube (9) sequentially penetrates through the handle (6) and the knife bar (5) and is communicated with the water outlet hole (31), the negative pressure suction tube (8) sequentially penetrates through the handle (6), the knife bar (5) and the knife bar connecting tube (3) and is communicated with the suction hole (11) of the ceramic head (1), and the power cable (7) sequentially penetrates through the handle (6), the knife bar (5), the knife bar connecting tube (3) and the ceramic head (1) and is connected with the electrode wire (2).

6. The radio frequency plasma surgical electrode according to claim 5, wherein a suction tube (51) is arranged in the knife bar (5), the suction tube (51) passes through the knife bar connecting tube (3) and is communicated with a suction hole (11) on the ceramic head (1), and the negative pressure suction tube (8) passes through the handle (6) and is communicated with the suction tube (51).

7. The RF plasma surgical electrode according to claim 5, wherein the knife bar (5) comprises a metal tube (52) and an insulating layer (53) wrapping the metal tube (52) from inside to outside in sequence, and the insulating layer (53) extends to the outer wall of the flow guide tube (4).