CN111904589A - Outside confession liquid radio frequency plasma scalpel head and scalpel thereof - Google Patents

Abstract

The invention relates to the field of plasma radio frequency scalpels, and provides an outside liquid supply radio frequency plasma scalpel head and a scalpel thereof, wherein the outside liquid supply radio frequency plasma scalpel head comprises an insulator for mounting an electrode piece and a sleeve sleeved outside the insulator to be used as an outer electrode, and the insulator is positioned at one end of the sleeve, and is characterized in that a plurality of perfusion passages are arranged on the sleeve along the axial direction of the sleeve, the perfusion passages are distributed at the outer side of the periphery of the insulator, and the perfusion passages are used for perfusate to flow to the position of the electrode piece along the perfusion passages, the perfusion passages are arranged on the sleeve, so that the perfusate can directly flow to the position of the electrode piece along the perfusion passages from a dripping pipe, and then flow out through a suction pipeline through a suction hole, and the design of the perfusion passages avoids the perfusion liquid outflow hole on the sleeve, the electric leakage condition of the cutter head after the outer sheath tube is damaged is avoided, and the operation risk is reduced.

Description

Outside confession liquid radio frequency plasma scalpel head and scalpel thereof

Technical Field

The invention relates to the field of plasma radio frequency scalpels, in particular to a radio frequency plasma scalpel head with liquid supplied from the outer side and a scalpel thereof.

Background

With the improvement of the living standard of people and the development of scientific technology, compared with the traditional surgery, the electrosurgery has the characteristics of micro-trauma, quick postoperative recovery and convenient use for doctors, so that the electrotomy of surgical instruments is more and more a trend. The radio frequency plasma ablation technology is also increasingly applied to various surgical operations, is a minimally invasive operation, can keep the safety of local mucosal tissues, can effectively relieve postoperative edema and pain, has short operation time, can not relapse after general operations, is suitable for cutting, ablating and stopping bleeding of various soft tissues of a human body, has safe and painless operation process, and can be used for the operation requirements of the soft tissues of the human body.

The perfusate flow channel of the radio frequency plasma surgical knife head is related to whether the plasma layer of the radio frequency plasma surgical knife head can be formed and whether the ablation part is sufficiently cooled and washed, and the operation effect has great influence. The existing radio frequency plasma surgical knife head perfusion solution flows in from the space between the inside of the stainless steel pipe of the knife bar and the internal suction pipe and then flows out from the internal suction pipe, the electrode wire of the knife head and the sheath of the electrode wire are directly soaked in the perfusion solution when the radio frequency plasma surgical knife head works, once the insulating sheath outside the electrode wire is damaged, the radio frequency plasma surgical knife head generates electric leakage, and the safety of the operation is influenced; the internal suction tube is also directly soaked in the perfusion solution, and if the internal suction tube is broken, the suction function of the radio frequency plasma surgical knife head is influenced, and the surgical efficiency is influenced.

Disclosure of Invention

The invention relates to an outside liquid supply radio frequency plasma scalpel head and a scalpel thereof, which can solve the technical problem that an outer sheath tube and a wire electrode are directly soaked in perfusate to cause danger when the existing scalpel head is used for surgery.

The technical scheme provided by the invention is as follows:

the utility model provides an outside confession liquid radio frequency plasma surgical knife head, is including the insulator that is used for installing the electrode piece, and the cover is in the outer sleeve pipe as the outer electrode of insulator, just the insulator is located sheathed tube one end, its characterized in that, follow on the sleeve pipe axial is provided with a plurality of passageways that fill, it distributes in the outside all around of insulator to fill the passageway, it is used for the perfusate to follow to fill the passageway and flows to the department of electrode piece.

In the technical scheme, the sleeve is provided with the perfusion passage, so that a perfusion solution flows to the position near the electrode piece along the perfusion passage when the radio frequency plasma surgical knife head is used, the perfusion solution in the scheme flows to the position near the electrode piece along the perfusion passage and cannot flow to the position near the electrode piece from the outer wall of the sleeve, so that the electrode piece of the knife head and the sheath of the electrode piece cannot be directly soaked in the perfusion solution when the radio frequency plasma surgical knife head works, and the radio frequency plasma surgical knife head cannot leak electricity to influence the safety of surgery even if the insulating sheath outside the electrode piece is damaged; the suction tube in the surgical knife head can not be directly soaked in the perfusion solution, and if the suction tube is broken, the suction function of the radio frequency plasma surgical knife head can not be influenced, so that the surgical efficiency is influenced.

Preferably, the sleeve comprises an outer sheath tube and an inner sheath tube, the inner sheath tube is sleeved outside the insulator, and the outer sheath tube is sleeved outside the inner sheath tube.

Preferably, the perfusion passage is a gap provided between the outer sheath and the inner sheath.

In this technical scheme, the passageway of infusing is the clearance between outer sheath pipe and the interior sheath pipe, and when using, the perfusate flows to electrode component department along the clearance between outer sheath pipe and the interior sheath pipe, formation plasma field that can be better, the effect of reinforcing cutting and melting.

Preferably, the perfusion passage is a first perfusion flow channel arranged on the outer sheath tube, and is used for perfusate to flow to the electrode element along the first perfusion flow channel.

In this technical scheme, set up first pouring runner on the sheath pipe to make the perfusate can flow to electrode part department along first pouring runner, can not flow to electrode part department along the outer wall of sheath pipe, formation plasma field that can be better, and the operation risk that the electric leakage leads to can not appear.

Preferably, the first perfusion channel is a perfusion hole formed in the tube wall of the outer sheath tube.

Preferably, the first perfusion channel is a drainage tube embedded in the wall of the outer sheath tube.

Preferably, the perfusion passage is a second perfusion channel provided on the inner sheath.

In this technical scheme, through will filling the passageway and set up on the sheath pipe including, during the use, the perfusate flows to electrode part department along the second on the sheath pipe, compare in the time of the outer wall runner electrode part department of perfusate along the sheath pipe in the past, can be more even, accelerate moreover more.

Preferably, the second perfusion channel is a liquid flowing hole formed in the wall of the inner sheath tube.

Preferably, the second perfusion channel is a flow guide tube connected to the inner wall of the sheath tube.

A plasma radio frequency scalpel comprises any one of the outside liquid supply radio frequency plasma scalpel heads, and further comprises:

the cutter bar is connected with the cutter head and is of a hollow structure;

the handle is connected with the cutter bar and communicated with the cutter bar;

the drip pipe penetrates through the side wall of the handle and is communicated with the perfusion passage;

and the suction tube is connected with the side wall of the handle, penetrates through the handle and the cutter bar and is communicated with the connecting tube.

Compared with the prior art, the radio frequency plasma surgical knife head with the liquid supplied from the outer side and the scalpel thereof have the following beneficial effects:

1. according to the invention, the casing is provided with the perfusion passage, so that perfusion liquid can directly flow to the position of the electrode piece from the drip pipe along the perfusion passage and then flows out through the suction pipeline through the suction hole.

2. According to the invention, the perfusion passage is arranged on the sleeve, so that the perfusion liquid directly flows to the position of the electrode piece, the suction tube is not soaked in the perfusion liquid, and the suction function of the surgical knife head is prevented from being influenced after the suction tube is broken.

3. Compared with the prior art that the pouring channel is arranged on the sleeve, the pouring channel does not need to flow along the outer wall of the sleeve when the pouring channel is arranged on the sleeve, and the pouring liquid in the design can flow to the electrode piece more uniformly.

Drawings

The foregoing features, technical features, and advantages of an outside feed RF plasma surgical blade and scalpel, and the manner in which the same are accomplished, are further described in the following detailed description of preferred embodiments which is to be read in connection with the accompanying drawings.

FIG. 1 is a schematic view of the RF plasma scalpel of the present invention;

FIG. 2 is a schematic view of a partial structure of a head of the RF plasma scalpel according to the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another embodiment of the present invention;

fig. 6 is a schematic structural diagram of another embodiment of the present invention.

The reference numbers illustrate: 100. a cutter head; 110. an insulator; 111. a suction hole; 112. connecting grooves; 120. A connecting pipe; 121. a suction tube; 130. a sleeve; 131. an outer sheath tube; 1311. a perfusion hole; 1312. a drainage tube; 132. an inner sheath tube; 1321. a flow guide pipe; 140. an electrode member; 150. filling the gap; 200. a cutter bar; 300. a handle; 400. a suction tube; 500. a drip pipe; 600. a cable plug-in.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

According to an embodiment of the present invention, as shown in fig. 1, a novel rf plasma scalpel includes: an outside feed RF plasmasurgical tool bit 100, atool holder 200, ahandle 300, adrip tube 500 and asuction tube 400; thecutter bar 200 is connected with thecutter head 100, thecutter bar 200 is of a hollow structure, and thecutter bar 200 and thecutter head 100 are integrated; thehandle 300 is connected with thecutter bar 200, and thehandle 300 is communicated with thecutter bar 200; is connected to the side wall of thehandle 300 and is communicated with the perfusion passage; the suction tube 400121 extends through the sidewall of thehandle 300 and communicates with theconnection tube 120 through thehandle 300 and theknife bar 200.

The radio frequency plasmasurgical knife head 100 with the liquid supplied from the outer side comprises aninsulator 110 used for mounting anelectrode element 140 and asleeve 130 sleeved outside theinsulator 110 and used as an outer electrode, wherein theinsulator 110 is positioned at one end of thesleeve 130, a plurality of perfusion passages are arranged on thesleeve 130 along the axial direction of thesleeve 130, the perfusion passages are distributed on the outer side of the periphery of theinsulator 110, and perfusion liquid flows to theelectrode element 140 along the perfusion passages;

in specific implementation, theinsulator 110 is an electrode ceramic base, and the structure of the electrode ceramic base is shown in fig. 2, and the material of the electrode ceramic base is alumina or zirconia. A suction hole 111 is formed in the center of theinsulator 110, the suction hole 111 is used for timely cleaning residues generated by radio frequency ablation, a connectingpipe 120 is connected to one end, close to the interior of thesleeve 130, of theinsulator 110, and the suction hole 111 is communicated with the connectingpipe 120; at least one pair of mounting holes are formed in theinsulator 110 on the periphery of the suction hole 111, the number of the mounting holes can be two or four, and the mounting holes are used for mounting theelectrode element 140, the perfusion passage in the embodiment is arranged on the inner wall of thesleeve 130 or thedrip tube 500 on thesleeve 130 is communicated with the perfusion passage, so that the perfusion liquid passing through thedrip tube 500 flows into the perfusion passage, the perfusion liquid flows to theelectrode element 140 along the perfusion passage, a plasma field is formed, ablation and cutting are better performed, and the cut or ablated residues are discharged through the suction hole 111 by the perfusion liquid flowing to theelectrode element 140; .

Specifically, thesleeve 130 includes anouter sheath 131 and aninner sheath 132, which are designed to have two layers, and theouter sheath 131 is made of an insulating material, which may be Polytetrafluoroethylene (PTFE), Polyetheretherketone (PEEK), fluorinated ethylene propylene copolymer (FEP), or polyvinyl chloride (PVC). In particular, fluorinated ethylene propylene copolymer (FEP) is preferably used. Thesheath 131 functions to provide insulation on the outer wall of the cuttinghead 100 so that the RF plasmasurgical cutting head 100 can only discharge electricity where needed.

Similarly, theknife bar 200 comprises an insulating knife bar outer sheath and a conductive knife bar inner sheath, theinner sheath 132 of thesleeve 130 and the knife bar inner sheath are connected into a whole to form a scalpel inner sheath, theouter sheath 131 of thesleeve 130 and the knife bar outer sheath are connected into a whole to form a scalpel outer sheath, the scalpel inner sheath is a main body of theknife bar 200, and theinner sheath 132 of thesleeve 130 and the knife bar inner sheath are made of stainless steel or other metal materials with good biocompatibility. The structure of theinner sheath 132 is shown in fig. 2, theinner sheath 132 is a hollow structure; as shown in fig. 2, the outer layer of theinner sheath 132 of thesleeve 130 is theouter sheath 131, theelectrode element 140 is mounted on theinsulator 110, i.e. on the electrode ceramic seat, the electrode ceramic seat is located in theinner sheath 132 of thesleeve 130, and a section of the connectingtube 120 is connected to the electrode ceramic seat, in specific implementation, the end of the electrode ceramic seat located in theinner sheath 132 is provided with a connecting groove 112, the connectingtube 120 is connected to the connecting groove 112, and the other end of the connectingtube 120 is connected to the suction tube 400121 located in theknife bar 200 assembly;

theelectrode member 140 is made of titanium (Ti), tungsten (Wu) or platinum (Pt). Theelectrode element 140 is composed of a wire electrode, which functions to form a radio frequency plasma layer for cutting, ablating, and stopping bleeding of soft tissues.

Further, theinner suction tube 121 is connected to theconnection tube 120. The medical plasma surgical knife head has the function of removing residues cut and ablated by the radio frequency plasmasurgical knife head 100 out of a surgical site, and the connectingpipe 120 is a medical stainless steel capillary and is used for connecting thesuction pipe 121 and the electrode ceramic seat inside.

Further, thehandle 300,suction tube 400,drip tube 500, andcable insert 600 form ahandle 300 assembly,suction tube 400,drip tube 500, andcable insert 600. Thehandle 300 is made of an engineering structural plastic such as Acrylonitrile Butadiene Styrene (ABS). The front end of thehandle 300 is connected with thecutter bar 200 component and provides radio frequency signals for thecutter bar 200 component; thesuction pipe 400 and thedrip pipe 500 are made of thermoplastic polyurethane elastomer rubber (TPU) or polyvinyl chloride (PVC); thecable insert 600 is connected to the rf generator at one end and to thehandle 300 of the rf plasmasurgical tool bit 100 at the other end for forming a path for an electric current. The rf plasmasurgical blade 100 is used in conjunction with an irrigation bag and an rf signal generator.

In another embodiment of the present invention, as shown in fig. 3 to 4, the perfusion passage is a first perfusion channel disposed on the sheath 131, and the perfusion fluid flows to the electrode element 140 along the first perfusion channel; as shown in fig. 3, the first perfusion flow channel is a perfusion hole 1311 formed in the tube wall of the outer sheath tube 131, perfusion holes 1311 are formed in the tube wall of the outer sheath tube 131, the drip tube 500 is connected to the handle 300, and the drip tube 500 is communicated with the perfusion holes 1311, in a specific implementation, at least three perfusion holes 1311 are formed in the outer sheath tube 131, the perfusion holes 1311 are distributed annularly and equidistantly, a water injection cavity is formed in the tube wall of the outer sheath tube 131 near the drip tube 500, the perfusion holes 1311 are communicated with the water injection cavity, the drip tube 500 is communicated with the water injection cavity, so that perfusion liquid in the drip tube 500 can flow into the perfusion holes 1311 through the water injection cavity, the perfusion holes 1311 distributed annularly and equidistantly enable liquid flowing out of the perfusion holes 1311 to flow to the vicinity of the electrode 140 better, so that the perfusion liquid flows to the electrode 140 from each direction, and a plasma field can be formed better;

as shown in fig. 4, the first perfusion channel is adrainage tube 1312 embedded in the wall of theouter sheath tube 131, in this embodiment, thedrainage tube 1312 is embedded in the wall of theouter sheath tube 131, and theouter sheath tube 131 is communicated with thedrip tube 500, the tubular members used in this embodiment are stainless steel tubes, so that the strength of thecutter bar 200 can be increased during use, and thecutter head 100 is prevented from being bent to block the perfusion fluid flowing in the tubular members when being subjected to an external force, in this embodiment, the number of the tubular members is three, and the three tubular members are distributed annularly and equidistantly, and one ends of the three 1312 away from theinsulator 110 are gathered together to form a fluid flowing passage, so as to be communicated with thedrip tube 500, in this embodiment, the perfusion flowing passage is formed by the perfusion fluid in thedrip tube 500 passing through the stainless steel tube on theouter sheath tube 131, the drainage tube on theinsulator 110, and theinternal suction tube 121, and finally exits the body through thesuction tube 400. The stainless steel tube in this embodiment is used as thedrainage tube 1312, so that the whole surgical knife has certain strength and is not easy to bend, and thedrainage tube 1312 is prevented from being blocked due to bending.

In another embodiment of the present invention, as shown in fig. 5, the perfusion path is agap 150 provided between theouter sheath 131 and theinner sheath 132. In this embodiment, thegap 150 between theouter sheath 131 and theinner sheath 132 on thesleeve 130 is used as a perfusion passage, and in particular, thedrip tube 500 is communicated with thegap 150, so that the perfusion fluid in thedrip tube 500 can flow to theelectrode element 140 along thegap 150; in this embodiment, theentire gap 150 between theouter sheath 131 and theinner sheath 132 serves as a perfusion channel, or theentire gap 150 between theouter sheath 131 and theinner sheath 132 on thesleeve 130 may be provided, or thegap 150 may be divided into a plurality of flow-through cavities, and the plurality of flow-through cavities are annularly and equidistantly distributed.

In another embodiment of the present invention, as shown in fig. 6, the perfusion passage is a second perfusion passage disposed on theinner sheath 132, the perfusion passage is a fluid hole disposed on the wall of theinner sheath 132, the perfusion passage is afluid guide tube 1321 connected to the inner wall of the sheath, in this embodiment, the perfusion passage may be a fluid hole disposed in the wall of theinner sheath 132, when in specific implementation, the fluid hole is communicated with the weeptube 500, or thefluid guide tube 1321 is connected to the inner wall of theinner sheath 132, theinner sheath 132 is a stainless steel tube, the inner wall of the stainless steel tube is designed with more than threefluid guide tubes 1321 therein, and the perfusion circuit is formed by the weeptube 500 passing through the inner wall of the stainless steel tube with thefluid guide tube 1321, then passing through the electrode ceramic seat, thesuction tube 400 and theinner suction tube 121, and finally exits the body through thesuction tube 400. In this embodiment, theflow guide tube 1321 and theinner sheath tube 132 can be connected by welding, so that the cost is low.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides an outside confession liquid radio frequency plasma surgical knife head, is including the insulator that is used for installing the electrode piece, and the cover is in the outer sleeve pipe as the outer electrode of insulator, just the insulator is located sheathed tube one end, its characterized in that, follow on the sleeve pipe axial is provided with a plurality of passageways that fill, it distributes in the outside all around of insulator to fill the passageway, it is used for the perfusate to follow to fill the passageway and flows to the department of electrode piece.

2. The rf plasma surgical outside feed head of claim 1, wherein: the sleeve comprises an outer sheath pipe and an inner sheath pipe, the inner sheath pipe is sleeved outside the insulator, and the outer sheath pipe is sleeved outside the inner sheath pipe.

3. An outside feed radio frequency plasma surgical blade as claimed in claim 2, wherein: the perfusion passage is a gap disposed between the outer sheath and the inner sheath.

4. An outside feed radio frequency plasma surgical blade as claimed in claim 2, wherein: the perfusion passage is a first perfusion flow channel arranged on the outer sheath tube and used for perfusate to flow to the electrode part along the first perfusion flow channel.

5. The outside feed radio frequency plasma surgical blade of claim 4, wherein: the first perfusion channel is a perfusion hole formed in the pipe wall of the outer sheath pipe.

6. The outside feed radio frequency plasma surgical blade of claim 4, wherein: the first perfusion channel is a drainage tube embedded in the tube wall of the outer sheath tube.

7. An outside feed radio frequency plasma surgical blade as claimed in claim 2, wherein: the perfusion passage is a second perfusion flow channel arranged on the inner sheath tube.

8. The rf plasma surgical outside feed head of claim 7, wherein: the second perfusion channel is a liquid flowing hole formed in the pipe wall of the inner sheath pipe.

9. The rf plasma surgical outside feed head of claim 7, wherein: the second perfusion channel is a flow guide pipe connected to the inner wall of the sheath pipe.

10. A plasma rf surgical knife comprising an outer feed rf plasma surgical blade according to any one of claims 1 to 9, further comprising:

the cutter bar is connected with the cutter head and is of a hollow structure;

the handle is connected with the cutter bar and communicated with the cutter bar;

the drip pipe is connected to the side wall of the handle and is communicated with the perfusion passage;

and the suction tube penetrates through the side wall of the handle and is communicated with the connecting tube through the handle and the cutter bar.

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