CN211704828U - High-frequency operation electrode telescoping device and electrotome pen of area attraction function - Google Patents

Abstract

The utility model discloses a high-frequency operation electrode telescopic device with a suction function, which comprises a movable suction tube, a fixed suction tube and a cutter body; the movable suction tube is movably inserted in the fixed suction tube and can extend out or retract into the fixed suction tube; the tail part of the cutter body is fixedly inserted into the front end of the movable suction tube. The high-frequency operation electrode telescopic device with the suction function can meet the operation with different depths and has a stable suction function. The utility model also discloses an electrotome pen, it is convenient to bring in for doctor's operation, saves the operation time, improves work efficiency.

Description

High-frequency operation electrode telescoping device and electrotome pen of area attraction function

Technical Field

The utility model relates to a high frequency operation electrotome pen technical field especially relates to a high frequency operation electrode telescoping device and electrotome pen of function are attracted in area.

Background

At present, the high-frequency surgical electric knife pen is a medical instrument which is frequently used in surgical operation, and basically 80 percent of operations are used. The high-frequency surgical electric knife pen has the basic requirements of high-frequency surgical electric knife pens on the function quality or convenience, and the invention and creation of the high-frequency surgical electric knife pen are promoted. Among them, the high-frequency surgical pencil sharpener with suction function is getting into the market gradually, which integrates the coagulation/electrotomy basic function and the suction function, and the unique suction function thereof is recognized as soon as it comes into the market.

For example, patent (CN201520837232.2) discloses a multifunctional monopolar surgical knife, the pencil has both suction and expansion functions, but when the pencil realizes the expansion function, the relative position of the knife head and the suction tube is changed, i.e. the distance between the knife head and the suction tube is different in the extending state or the retracting state, which causes the suction performance of the pencil to be different in different expansion positions, and brings no change to the practical application.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a high-frequency operation electrode telescopic device with an attraction function, which greatly facilitates the operation operations with different depths and has a stable attraction function.

A second object of the present invention is to provide an electrotome pen, which is convenient for doctor to operate, saves operation time, and improves work efficiency.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a high-frequency operation electrode telescopic device with a suction function comprises a movable suction tube, a fixed suction tube and a cutter body; the movable suction tube is movably inserted into the fixed suction tube, and can extend out of or retract into the fixed suction tube; the tail part of the cutter body is fixedly inserted into the front end of the movable suction tube.

Furthermore, a first limiting convex ring is arranged on the inner wall of the front end of the fixed suction tube, and a second limiting convex ring is arranged on the inner wall of the rear end of the fixed suction tube; the tail part of the movable suction tube is provided with a plurality of raised elastic conductive contacts which are tightly attached to the inner wall of the fixed suction tube; the movable suction tube is pulled out or pushed in, and the elastic conductive contact slides between the first limit convex ring and the second limit convex ring.

Furthermore, a groove is formed in the inner wall of the front end of the fixed suction tube, a sealing ring is arranged in the groove, and the sealing ring is abutted to the outer wall of the movable suction tube.

Furthermore, the front end of the movable suction tube is provided with a plurality of suction holes.

Further, the cutter body comprises a connecting part, a cutter point and a plurality of cutter edges; the tail part of the blade is connected with the top of the connecting part; the plurality of knife edges are arranged at the periphery of the connecting part at intervals; the connecting part and the knife edges are inserted in the movable suction tube, a suction channel is formed between the knife edges and the movable suction tube, and the knife edge extends out of the movable suction tube.

Further, the front end of the cutter body is arranged in a sharp needle shape, a knife shape (such as a double-edged knife shape), a shovel shape (such as a straight shovel shape), a hook shape or a spherical shape (the diameter of the spherical shape is set according to actual conditions).

Furthermore, the front end face of the inner wall of the movable suction tube is provided with an inclined face, so that the front end of the movable suction tube forms a circular truncated cone-shaped through hole, and the diameter of the circular truncated cone-shaped through hole gradually decreases from the front end of the movable suction tube to the tail end of the movable suction tube.

Further, the outer wall of the movable suction tube is provided with an insulating layer or an insulating sleeve.

The second purpose of the utility model is realized by adopting the following technical scheme:

an electrotome pen comprises the high-frequency operation electrode telescopic device with the suction function, an electrical appliance component and a shell;

the electric appliance assembly comprises a circuit board, and a conductive gripper, an electric excision touch key and an electric coagulation touch key which are electrically connected with the circuit board; the conductive gripper is connected with the outer wall of the fixed suction tube;

the shell is provided with an electrotomy key and an electrocoagulation key, the electrotomy key corresponds to the electrotomy contact key, and the electrocoagulation key corresponds to the electrocoagulation contact key; the shell is internally provided with an accommodating cavity, the telescopic device and the electric appliance assembly are arranged in the accommodating cavity, and the movable suction tube and the cutter body can synchronously extend out of or retract into the shell.

Further, the suction device also comprises a suction hose, wherein the front end of the suction hose is communicated with the tail end of the fixed suction tube.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model provides a high frequency operation electrode telescoping device of function is attracted in area, simple structure attracts the pipe front end with the tool bit setting in the activity, and outside pulling or inside propulsion activity attract the pipe, and whole cutter body and activity attract the pipe synchronous outside or inside movement this moment, and they are synchronous and fixed attract the pipe to take place relative displacement to flexible function has been realized. And the relative position of the cutter body and the movable suction tube is not changed, the suction effect cannot be greatly changed due to the difference of the extension length of the cutter body, and the suction effect is more stable and controllable.

(2) The utility model provides an electrotome pen both has the attraction function and has flexible function, can bring conveniently for in the doctor's operation, saves the operation time simultaneously, improves work efficiency, practices thrift the cost.

Drawings

Fig. 1 is a schematic view of a telescopic device provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic view of a cutter body provided in embodiment 1 of the present invention;

FIG. 4 is a left side view of FIG. 3;

fig. 5 is another schematic view of a cutter body provided in embodiment 1 of the present invention;

FIG. 6 is a left side view of FIG. 5;

fig. 7 is a schematic view of a retraction state of the electric knife pen provided in embodiment 2 of the present invention;

fig. 8 is a schematic view of an extended state of the electric knife pen provided in embodiment 2 of the present invention;

fig. 9 is a schematic cross-sectional view of an electric knife pen provided in embodiment 2 of the present invention.

In the figure: 1. a cutter body; 2. a movable suction tube; 3. an insulating sleeve; 4. a housing; 5. a seal ring; 6. a conductive gripper; 71. an electrocoagulation contact bond; 72. electrically cutting the touch key; 8. fixing a suction tube; 9. a circuit board; 10. an electric wire; 11. a suction hose; 12. a plug; 100. a blade point; 101. a rib; 102. a connecting portion; 200. a suction hole; 201. an elastic conductive contact; 401. an electrocoagulation button; 402. the key is cut electrically.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1-6, a high-frequency operation electrode extension device with suction function comprises a movable suction tube 2, a fixed suction tube 8 and a knife body 1; the movable suction tube 2 is movably inserted into the fixed suction tube 8, and the movable suction tube 2 can extend out or retract into the fixed suction tube 8; the tail part of the cutter body 1 is fixedly inserted into the front end of the movable suction tube 2. The movable suction tube 2 and the fixed suction tube 8 are both made of metal or other conductive materials with certain strength, and the structures of the movable suction tube and the fixed suction tube are preferably tubular structures.

The operation position of different degree of depth often can appear in the operation in-process, and the activity that the operation doctor can outwards pull out different length attracts pipe 2 according to actual demand, need not change the high frequency electric knife pen of different length according to the experience, has saved the operation time greatly, has improved operation efficiency, avoids unnecessary extravagant simultaneously.

As a further embodiment, a first limit convex ring is arranged on the inner wall of the front end of the fixed suction tube 8, and a second limit convex ring is arranged on the inner wall of the rear end of the fixed suction tube 8; the tail part of the movable suction tube 2 is provided with a plurality of raised elastic conductive contacts 201, and the elastic conductive contacts 201 are tightly attached to the inner wall of the fixed suction tube 8; the movable suction tube 2 is pulled out or pushed in, and the elastic conductive contact 201 slides between the first limit convex ring and the second limit convex ring. First spacing bulge loop and the spacing bulge loop of second all mutually support with elastic conductive contact 201, and first spacing bulge loop can prevent that the activity from attracting pipe 2 and pull out from fixed attraction pipe 8, and the spacing bulge loop of second can prevent that the activity from attracting pipe 2 and pushing out from fixed attraction pipe 8. In the assembling process, the front end of the movable suction tube 2 is inserted into the cavity of the fixed suction tube 8 from the tail end of the fixed suction tube 8 and is pushed forward, so that the front end of the movable suction tube 2 passes through the sealing ring 5 and is continuously pushed forward until the sliding conductive contact of the movable suction tube 2 slides through the second limiting convex ring arranged on the inner wall of the tail end of the fixed suction tube 8.

Preferably, the tail of the movable suction tube 2 is additionally provided with incisions which protrude outwards to form conductive contacts, the conductive contacts are extruded to generate radial elastic deformation in the protruding direction, the elastic conductive contacts 201 are tightly attached to the fixed suction tube 8 to generate friction, and the movable suction tube 2 is in conductive connection with the fixed suction tube 8 through the sliding conductive contacts to ensure the electrical connectivity. Meanwhile, the movable suction tube 2 and the fixed suction tube 8 are positioned through the elastic conductive contact 201, so that the movable suction tube 2 is prevented from freely moving.

In a further embodiment, a groove is formed in the inner wall of the front end of the fixed suction tube 8, a sealing ring 5 is arranged in the groove, the sealing ring 5 abuts against the outer wall of the movable suction tube 2, and the sealing ring 5 has high elasticity and can ensure the sealing performance between the fixed suction tube 8 and the movable suction tube 2. Certain friction force exists between the sealing ring 5 and the movable suction tube 2, the movable suction tube 2 needs to be pulled out and pushed back inwards manually, and free movement of the movable suction tube 2 in the operation process is avoided. Preferably, the sealing ring 5 is made of soft heat-resistant and wear-resistant material, and can be medical silica gel, medical rubber and the like.

As a further embodiment, the front end of the movable suction tube 2 is provided with a plurality of suction holes 200 to increase the suction range. For example, 4 suction holes 200 are provided, and the 4 suction holes 200 are arranged at equal intervals around the front end of the movable suction tube 2. The suction holes 200 can ensure multi-directional and multi-angle suction, so that the suction is more thorough. The suction holes 200 may be circular holes, but may be holes having other shapes.

As a further embodiment, as shown in fig. 3-6, the cutter body 1 comprises a connecting portion 102, a blade 100 and a plurality of edges; the tail of the blade 100 is connected with the top of the connecting part 102; the plurality of knife edges are arranged at intervals on the periphery of the connecting part 102; the connecting part 102 and the edge strip 101 are inserted into the movable suction tube 2, a suction channel is formed between the knife edge and the movable suction tube 2, and the knife edge 100 extends out of the movable suction tube 2. When the cutter body 1 is connected with the movable suction tube 2, the cutter body 1 is inserted into and fixed in the inner cavity of the movable suction tube 2 through the connecting part 102 and the ribs 101, the connecting part 102 is preferably a cylindrical body, and the number of the ribs 101 can be 3 to 6, so that the cutter body 1 is stable and firm after being inserted into the movable suction tube 2. Particularly, the tail ends of the connecting part 102 and the ribs 101 may be rounded or beveled to facilitate the smooth and convenient insertion of the knife body 1 into the movable suction tube 2. In addition, the front end of the rib 101 is inclined and gradually ascends along the radial direction, so as to prevent the blockage in the working process. In order to better position the knife body 1, a groove can be arranged on the inner wall of the movable suction tube 2, and the tail end of the knife body 1 is inserted into the cavity of the movable suction tube 2 from the front end of the movable suction tube 2 until the knife body cannot be inserted, namely, the knife body 1 is limited by the arranged groove.

The cutter body 1 of the embodiment adopts the above arrangement mode, the arrangement mode of the cutter head shape is flexible, for example, the cutter head shape can be arranged into a pointed shape, a knife shape (such as a double-edge knife shape), a shovel shape (such as a straight shovel shape), a hook shape or a spherical shape (the diameter of the spherical shape is set according to actual conditions) or other suitable shapes, and in order to reduce adhesion to tissues when the electrotome works, special anti-adhesion coating treatment can be carried out on the surface of the cutter body 1. The setting of the cutter body 1 of this embodiment has very big difference with the mode that sets up of traditional electrotome pen, and traditional electrotome pen is because cutter body 1 sets up the position limited, and the tool bit shape is fixed basically, only single sword shape structure, and the position operation of difference in the operation process also need use the electrotome pen nib of different shapes, and at this moment, current area attracts function high frequency electrotome pen just can not satisfy doctor's demand completely because of only a tool bit shape. In addition, the exposure of the operation visual field in the operation process is the focus of the attention of a doctor, and most of the operation tool bits of the existing high-frequency electric knife pen with the suction function cannot be arranged at the front end center of the electric knife pen, so that the operation visual field is greatly influenced when the doctor performs the operation, and the inconvenience in the operation process is caused. The utility model discloses a cutter body 1 is inserted and is established at activity and attract pipe 2 front end, and the tool bit stretches out from the positive center that the activity attracts pipe 2, the operation of being convenient for.

As a further embodiment, the front end surface of the inner wall of the movable suction tube 2 is provided with an inclined surface, so that the front end of the movable suction tube 2 forms a circular truncated cone-shaped through hole, and the diameter of the circular truncated cone-shaped through hole gradually decreases from the front end of the movable suction tube 2 to the tail end direction. With this arrangement, the suction airflow can be improved, thereby increasing the suction range.

As a further embodiment, the outer wall of the movable suction tube 2 is provided with an insulating layer or insulating sleeve 3 to ensure that the outer surface of the movable suction tube 2 is not conductive to prevent the outer surface of the body of the movable suction tube 2 from electrocision/electrocoagulation damage to the non-surgical site. Preferably, the insulating layer is a wear-resistant insulating coating; the insulating sleeve 3 can be a heat-shrinkable insulating sleeve 3 which is tightly wrapped on the outer surface of the movable suction tube 2 after heat shrinkage. The front end of the insulating layer or the insulating sleeve 3 may be provided with a suction hole 200 corresponding to the suction hole 200 of the movable suction tube 2. The length of the rear end of the insulating layer or the insulating sleeve 3 is slightly shorter than that of the movable suction tube 2, so that the sliding conductive contact on the movable suction tube 2 is exposed and can be reliably and conductively connected with the inner wall of the fixed suction tube 8.

Example 2

As shown in fig. 7 to 9, the electric knife pen provided in example 2 is based on the suction-function-equipped high-frequency surgical electrode retracting device of example 1, which is a component of the electric knife pen. The specific setting mode is as follows:

an electrotome pen comprises a high-frequency operation electrode telescopic device with a suction function, an electrical component and a shell 4; the electric appliance assembly comprises a circuit board 9, and a conductive gripper 6, an electric excision contact key 72 and an electric coagulation contact key 71 which are electrically connected with the circuit board 9; the conductive gripper 6 is connected with the outer wall of the fixed suction tube 8; an electric cutting key 402 and an electric coagulation key 401 are arranged on the shell 4, the electric cutting key 402 corresponds to the electric cutting contact key 72, and the electric coagulation key 401 corresponds to the electric coagulation contact key 71; be provided with in the casing 4 and hold the chamber, telescoping device and electrical components set up and hold the intracavity, and the activity attracts pipe 2 and cutter body 1 can stretch out or retract casing 4 in step.

More specifically, the outer pipe surface of the fixed suction pipe 8 is connected with the conductive gripper 6 in a compression joint mode, the conductive gripper 6 can be made of conductive elastic sheets, and the conductive gripper 6 is connected with the circuit board 9 in a conductive mode; the circuit board 9 is electrically conductively connected to the plug 12 via a line 10. The shell 4 wraps the electrical components and the suction telescopic structure to carry out electrical insulation and isolation, an electrotomy key 402 and an electrocoagulation key 401 are arranged on the shell 4 and respectively correspond to the pressing of the electrotomy key 72 and the electrocoagulation key 71, the electrotomy key 72 is triggered to be communicated with the circuit board 9 through the pressing of the electrotomy key 402, and the electrocoagulation key 71 is triggered to be communicated with the circuit board 9 through the pressing of the electrocoagulation key 401; the plug 12 can be inserted into a high-frequency electric knife main machine.

As a further embodiment, the electric incising contact key 72 and the electric coagulating contact key 71 can be metal dome key sheets, and can also be silica gel conductive keys and the like. The circuit board 9 is a double-layer or multi-layer circuit board 9 and has the functions of conducting triggering and electrical connection of the functional keys; the tail of the circuit board 9 is connected with the electric wire 10 in a welding or clamping mode, the electric wire 10 is composed of a flexible multi-strand multi-core cable, the wire skin can be made of a silica gel wire or a PVC wire, the front end of the electric wire 10 is welded or clamped with the circuit board 9, the rear end of the electric wire is connected with the plug 12, and the plug 12 can be directly inserted into a corresponding output port of the high-frequency electrotome main machine.

As a further embodiment, a groove is formed on the outer wall of the front end of the fixed suction tube 8 for fixing the fixed suction tube 8 and the shell 4, so as to ensure that the fixed suction tube 8 does not displace relative to the shell 4 in the process of extending and retracting the movable suction tube 2.

As a further embodiment, the housing 4 is a carrier for fixing and mounting all components, and is made of plastic or other insulating material, wherein a cavity and a fixing clip or component are provided for fixing and passing other components through the housing 4. The housing 4 may be configured in a circular or other streamlined design and ergonomically to ensure comfort of use.

As a further embodiment, the suction tube 11 is further provided, and the leading end of the suction tube 11 communicates with the trailing end of the fixed suction tube 8. Preferably, the suction hose 11 is a threaded pipe or an annular hose, ensuring a non-deforming closure in the pipe diameter during suction. The rear end of the suction hose 11 is provided with a plug-in device which can be directly connected with a hospital negative pressure suction device.

In the practical application process of the electric knife pen of the embodiment 2, the processes of the electric cutting/coagulation function, the suction function and the expansion function are respectively as follows:

electro-excision/electrocoagulation functions: an electric signal sent by the high-frequency electric knife main machine is connected to the circuit board 9 through the plug 12 and the wire 10, the electric cutting key 402 or the electric coagulation key 401 arranged on the shell 4 is pressed manually to enable the electric cutting contact key 72 or the electric coagulation contact key 71 to be conducted, the electric signal is transmitted to the conductive gripper 6 and then is transmitted to the fixed suction tube 8, the electric signal is transmitted to the movable suction tube 2 through the elastic conductive contact 201 arranged on the movable suction tube 2 and then is transmitted to the knife body 1 through the ribs 101 on the knife body 1, the knife body 1 is in contact with a cutting position to discharge electricity, then the electric signal is transmitted to a negative plate which is contacted with the human body and is connected by the high-frequency electric knife main machine through the human body, and then the electric cutting/electric coagulation function is realized.

The attraction function: the fluid enters the inner cavity of the movable suction tube 2 through the suction channel 120 and the suction hole 200 formed between the cutter body 1 and the movable suction tube 2, then is transferred into the inner cavity of the suction hose 11 through the inner cavity of the fixed suction tube 8, and finally enters the negative pressure suction device, thereby realizing the suction function.

The telescopic function: the hand catches the small part of the insulating sleeve 3/the insulating layer exposed out of the shell 4, the movable suction tube 2 is pulled outwards or pushed inwards, and at the moment, the whole cutter body 1, the movable suction tube 2 and the insulating sleeve 3 synchronously move outwards or inwards and are displaced relative to the fixed suction tube 8, so that the telescopic function is realized. Particularly, the inner wall of the fixed suction tube 8 is provided with a first limit convex ring and a second limit convex ring, so that the limit of the telescopic position can be ensured.

The embodiment of the utility model provides an electrotome pen, a multi-functional high frequency operation electrotome pen, adopt brand-new design, improve and improve suction tube design through the tool bit design, improve the column structure for taking rib 101 with the round bar body design of traditional tool bit pen-holder, then insert the slidable electricity conduction of cutter bar rib 101 into the cylinder and attract the pipe cavity in, again attract outside the pipe to sheathe the electrically conductive cylinder again and fixedly attract pipe 8, attract 8 end connection soft straws of pipe fixedly, directly insert the negative pressure suction device by soft straw after, just can realize attracting function and flexible function simultaneously, and the electrotome head sets up the central point at the body of a knife pen rod front end.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. A high-frequency operation electrode telescopic device with a suction function is characterized by comprising a movable suction tube, a fixed suction tube and a cutter body; the movable suction tube is movably inserted into the fixed suction tube, and can extend out of or retract into the fixed suction tube; the tail part of the cutter body is fixedly inserted into the front end of the movable suction tube.

2. The high-frequency operation electrode telescopic device with the suction function according to claim 1, wherein the inner wall of the front end of the fixed suction tube is provided with a first limit convex ring, and the inner wall of the rear end of the fixed suction tube is provided with a second limit convex ring; the tail part of the movable suction tube is provided with a plurality of raised elastic conductive contacts which are tightly attached to the inner wall of the fixed suction tube; the movable suction tube is pulled out or pushed in, and the elastic conductive contact slides between the first limit convex ring and the second limit convex ring.

3. A high-frequency operation electrode telescopic device with suction function as claimed in claim 1 or 2, wherein the inner wall of the front end of the fixed suction tube is provided with a groove, a sealing ring is arranged in the groove, and the sealing ring is abutted against the outer wall of the movable suction tube.

4. The high-frequency operation electrode telescopic device with suction function according to claim 1, wherein the front end of the movable suction tube is provided with a plurality of suction holes.

5. The high-frequency operation electrode telescopic device with the suction function as claimed in claim 1, wherein the knife body comprises a connecting part, a knife edge and a plurality of knife edges; the tail part of the blade is connected with the top of the connecting part; the plurality of knife edges are arranged at the periphery of the connecting part at intervals; the connecting part and the knife edge are inserted in the movable suction tube, a suction channel is formed between the knife edge and the movable suction tube, and the knife edge extends out of the movable suction tube.

6. The high-frequency operation electrode telescopic device with suction function according to claim 1, wherein the front end of said cutter body is formed in a pointed needle shape, a knife shape, a straight shovel shape, a hook shape or a spherical shape.

7. The high-frequency operation electrode extension device with suction function as claimed in claim 1, wherein the front end surface of the inner wall of said movable suction tube is provided with an inclined surface, so that the front end of said movable suction tube forms a circular truncated cone-shaped through hole, and the diameter of said circular truncated cone-shaped through hole gradually decreases from the front end of said movable suction tube to the tail end of said movable suction tube.

8. The high-frequency operation electrode telescopic device with the suction function according to claim 1, wherein an insulating layer or an insulating sleeve is provided on the outer wall of the movable suction tube.

9. An electric knife pen, which is characterized by comprising the high-frequency operation electrode telescopic device with the suction function of claim 1, and further comprising an electric appliance assembly and a shell;

the electric appliance assembly comprises a circuit board, and a conductive gripper, an electric excision touch key and an electric coagulation touch key which are electrically connected with the circuit board; the conductive gripper is connected with the outer wall of the fixed suction tube;

the shell is provided with an electrotomy key and an electrocoagulation key, the electrotomy key corresponds to the electrotomy contact key, and the electrocoagulation key corresponds to the electrocoagulation contact key; the shell is internally provided with an accommodating cavity, the telescopic device and the electric appliance assembly are arranged in the accommodating cavity, and the movable suction tube and the cutter body can synchronously extend out of or retract into the shell.

10. The electrotome pen according to claim 9, further comprising a suction hose, the leading end of which communicates with the trailing end of the stationary suction tube.

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