CN212308022U

CN212308022U - Soft plasma scalpel under soft endoscope

Info

Publication number: CN212308022U
Application number: CN202020334990.3U
Authority: CN
Inventors: 杨锡联; 王明莉; 张瑞娟
Original assignee: Surgery Medical Technology Co ltd
Current assignee: Surgery Medical Technology Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-01-08
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a software plasma scalpel under soft scope, include: the flexible working electrode is sleeved with a hose, the flexible working electrode extends out of one end of the hose, the handle is arranged, one end of the handle is connected with the other end of the hose, one end of a cable penetrates through the other end of the handle and is electrically connected with the flexible working electrode, the other end of the cable is electrically connected with one end of a connector, and the other end of the connector is electrically connected with a host; one end of the water outlet pipeline penetrates through the handle and extends into the soft working electrode, and a physiological saline medium is input into the other end of the water outlet pipeline, so that the guarantee of the medium for generating plasma can be provided. The utility model aims at solving the problems of no bleeding, vaporization, cutting and hemostasis under the bipolar circuit design function, minimal invasion, low temperature, visual and safe operation without an attached neutral electrode under the condition of visual soft lens to the mucosa lesion tissue.

Description

Soft plasma scalpel under soft endoscope

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to software plasma scalpel under soft scope.

Background

With the development of medical technology, the diagnosis and treatment technology is improved, the diagnosis and treatment technology tends to be painless, the directional development of wounds is reduced, the endoscope plays a key visual observation role in minimally invasive surgery, the current endoscopes are mainly divided into a hard endoscope and a soft endoscope, the hard endoscope has small surgical wounds compared with the traditional endoscope, the soft endoscope is thinner and smaller than the hard endoscope, the wounds are smaller, the endoscope has the advantage that a focus can be entered through a natural orifice of a human body, the endoscope can conveniently enter a narrow or bent space and can easily reach the position where the hard endoscope cannot reach, the diameter of the soft endoscope is only 2-5mm, and the endoscope is thinner and more flexible than the hard endoscope.

Because there is no suitable, effective, safe soft electrosurgery operating knife head, therefore most of the electrosurgery operating instruments under the endoscope in the present technology are electrosurgery operating instruments under the hard endoscope, the diameter is large, and the operating electrode is hard, the operation is not flexible, and need to set up the direct pure working channel after the cut is cut on the human body, there are more postoperative complications, it is great to the injury of the normal tissue of the human body; although the soft lens is slender and flexible compared with a hard lens, the current method only uses a single-pole electrocoagulation guide wire to pass through the working channel, the current is cauterized, the negative plate attached to the skin of a human body is used as a return channel of the working current, and the current flows through the tissue of the human body, so that the normal tissue is often damaged, and a very large risk factor exists; the other is ablation by expensive laser, and the laser fiber is often damaged when being bent along a large angle of the soft endoscope. Heretofore, no plasma scalpel head specially matched with a soft lens is provided, so that a safe and effective soft low-temperature plasma scalpel capable of being used in a soft endoscope needs to be designed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at solving the problems of the minimally invasive, low-temperature, visible and safe operations without the need of an attached neutral electrode, such as vaporization, cutting and hemostasis under the bipolar circuit design function without bleeding to the mucosa lesion tissue under the vision of a soft lens.

Therefore, the technical scheme who adopts is, the utility model discloses a soft plasma scalpel under soft scope, include:

the flexible working electrode is sleeved with a hose, extends out of one end of the hose and is internally provided with a saline medium channel;

one end of the handle is connected with the other end of the hose, one end of the cable penetrates through the other end of the handle and is electrically connected with the flexible working electrode, the other end of the cable is electrically connected with one end of the connector, and the other end of the connector is electrically connected with the host;

one end of the water outlet pipeline penetrates through the handle and extends into the soft working electrode, and the other end of the water outlet pipeline inputs a physiological saline medium.

Preferably, the flexible working electrode comprises an emitter electrode, a flexible loop electrode tube and an insulating tube, the insulating tube is sleeved on the emitter electrode, the flexible loop electrode tube is sleeved on the insulating tube, a gap is formed between the flexible loop electrode tube and the insulating tube of the outer sleeve of the emitter electrode, and the water outlet pipeline sequentially penetrates through the hose and the flexible loop electrode tube and is communicated with the gap.

Preferably, the outer wall of the handle is provided with anti-skid grains.

Preferably, a flow control device is disposed on the water outlet pipeline, and the flow control device includes:

one end of the connecting pipe is communicated with the water outlet pipeline;

the small-diameter end of the conical pipe is communicated with the other end of the connecting pipe, the large-diameter end of the conical pipe is communicated with one end of a second connecting pipe, and the other end of the second connecting pipe is suspended;

the plugging block is arranged in the conical pipe, the side wall of the plugging block is tightly attached to the inner wall of the conical pipe, and the plugging block can reciprocate up and down along the conical pipe;

the spring is arranged in the conical tube, one end of the spring is connected with the upper end of the blocking block, and the other end of the spring is connected with one end, far away from the water outlet pipeline, of the first connecting pipe.

Preferably, a sealing ring is arranged on the side wall of the blocking block.

Preferably, one end of the second connecting pipe, which is far away from the conical pipe, is provided with a cover.

Preferably, the cap is threadedly coupled to the second connection pipe.

Preferably, the water supply device further comprises a constant-speed water supply device, wherein the constant-speed water supply device comprises:

one end of the water tank is communicated with one end, far away from the handle, of the water outlet pipeline, a water injection pipe is arranged at the top end of the water tank, a sealing cover is arranged at the upper end of the water injection pipe, a baffle is arranged in the water tank, and the baffle is tightly attached to the inner wall of the water tank and can reciprocate left and right along the water tank;

the power box is arranged on the right side of the water tank, a first through hole is formed in the right side wall of the water tank, a push rod is arranged in the first through hole, one end of the push rod is connected with a baffle, a rack in the horizontal direction is arranged in the power box, one end of the rack is connected with the other end of the push rod, a second through hole is formed in the right side wall of the power box, a connecting rod is arranged in the second through hole, one end of the connecting rod is connected with the other end of the rack, the other end of the connecting rod extends out of the power box and is fixedly connected with a limiting plate, a spring is arranged between the power box and the limiting plate, and the spring is sleeved;

the gear is arranged above the rack and meshed with the rack, a rotating shaft is arranged on the axis of the gear, and two ends of the rotating shaft are mounted on the wall surface of the power box through bearings;

the groove body is arranged on the outer wall of the power box, the inner wall of the groove body is provided with an electric motor, and an output shaft of the electric motor is connected with one end of the rotating shaft.

Preferably, a flow regulating device is arranged on the groove body, and the flow regulating device comprises:

the movable column is arranged on the outer wall of the groove body, the movable column is arranged in the cylinder and is tightly attached to the inner wall of the cylinder, the movable column can be arranged on the right end of the cylinder and is communicated with one end of a third connecting pipe, the other end of the third connecting pipe is communicated with a water outlet pipeline, an exhaust pipe is arranged on the left side wall of the cylinder, a second spring is arranged in the cylinder, one end of the second spring is fixedly connected with the left end of the movable column, and the other end of the second spring is fixedly connected with the right side of the inner wall of the cylinder;

the utility model discloses a motor, including barrel, cylinder, guide port, motor, the barrel upper end is provided with the guide port, the left and right sides setting of guide port is provided with first end plate and second end plate respectively, be provided with the speed reduction switch on the inside wall of first end plate, be provided with the acceleration switch on the lateral wall of second end plate, the speed reduction switch with the acceleration switch all with motor electric connection, be provided with the depression bar on the removal post outer wall, the depression bar upper end is passed the guide port extends to the barrel top, the depression bar is in the speed reduction switch.

The utility model discloses technical scheme has following advantage: the utility model discloses a software plasma scalpel under soft scope, include: the flexible working electrode is sleeved with a hose, the flexible working electrode extends out of one end of the hose, a saline medium channel is arranged inside the flexible working electrode, a handle is arranged, one end of the handle is connected with the other end of the hose, one end of a cable penetrates through the other end of the handle and is electrically connected with the flexible working electrode, the other end of the cable is electrically connected with one end of a connector, and the other end of the connector is electrically connected with a host; one end of the water outlet pipeline penetrates through the handle and extends into the soft working electrode, and the other end of the water outlet pipeline inputs a physiological saline medium. The water outlet pipeline provides a channel of a physiological saline medium, the saline medium passes through the interior of the flexible electrode and flows to the front end of the working electrode, the front end of the flexible working electrode excites molecules in the saline medium to generate plasma through electric energy under a specific waveform, and high-speed charged particles in the plasma can directly break molecular bonds of tissues, so that the tissues of a human body are not damaged, and the action principle of the monopolar electrocoagulation wire is fundamentally different from that of a monopolar electrocoagulation wire which carries out thermal ignition on the tissues by current. The heat damage of normal tissues is greatly reduced, thereby realizing safe and non-invasive effect. The cutter head of the soft plasma under the soft endoscope can be randomly bent under the soft endoscope and cannot be easily damaged like a laser cutter head.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1 in the present invention.

Fig. 3 is a schematic structural diagram of the middle soft working electrode of the present invention.

Fig. 4 is a schematic view of the internal structure of the handle of fig. 3.

Fig. 5 is a schematic structural diagram of the middle flow rate control device of the present invention.

Fig. 6 is a schematic structural diagram of the middle columnar emitter electrode of the present invention.

Fig. 7 is a schematic structural diagram of the middle hook-shaped emitter electrode of the present invention.

Fig. 8 is a schematic structural diagram of the middle clamp-shaped emitter electrode according to the present invention.

Fig. 9 is a schematic structural view of the constant-speed water supply device of the present invention.

Fig. 10 is a plan view of the constant-speed water supply device according to the present invention.

Fig. 11 is a schematic structural diagram of the middle flow rate adjusting device of the present invention.

Fig. 12 is a schematic structural diagram of the middle clamp-shaped flexible working electrode according to the present invention.

Fig. 13 is a schematic structural diagram of the middle circular emitter electrode of the present invention.

The drawings are numbered as follows: 1-a flexible working electrode, 2-a hose, 3-a handle, 4-a cable, 5-a connector, 6-a water outlet pipeline, 7-an emission electrode, 8-a flexible loop electrode pipe, 9-an insulating pipe, 10-a first connecting pipe, 11-a conical pipe, 12-a second connecting pipe, 13-a blocking block, 14-a spring, 15-a cover, 16-a water tank, 17-a water injection pipe, 18-a sealing cover, 19-a baffle, 20-a power box, 21-a first through hole, 22-a push rod, 23-a rack, 24-a second through hole, 25-a connecting rod, 26-a spring, 27-a gear, 28-a rotating shaft, 29-a groove body, 30-a motor, 31-an output shaft and 32-a limiting plate, 33-a cylinder body, 34-a moving column, 35-a third connecting pipe, 36-an exhaust pipe, 37-a guide port, 38-a second spring, 39-a first end plate, 40-a second end plate, 41-a speed reducing switch, 42-an accelerating switch and 43-a pressure rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

The embodiment of the utility model provides a soft plasma scalpel under soft scope, as shown in fig. 1-4, include:

the flexible working electrode 1 is sleeved with a hose 2, the flexible working electrode 1 is flexible and can be bent without causing the resistance of an endoscope to turn by adopting a flexible design, the flexible working electrode 1 extends out of one end of the hose 2, the outer diameter ratio of the flexible working electrode 1 is smaller and is only 1.8-2.5mm, and a channel with a small inner diameter can be conveniently passed through,

one end of the handle 3 is connected with the other end of the hose 2, one end of a cable 4 penetrates through the other end of the handle 3 and is electrically connected with the soft working electrode 1, the other end of the cable 4 is electrically connected with one end of a connector 5, the other end of the connector 5 is electrically connected with a host, and the host is a high-frequency or plasma host;

one end of the water outlet pipeline 6 penetrates through the handle 3 and extends into the soft working electrode 1, and a physiological saline medium is input into the other end of the water outlet pipeline 6.

The working principle and the beneficial technical effects of the technical scheme are as follows: the flexible working electrode 1 can enter a working channel of the flexible endoscope, the flexible tube 2 plays a role in insulating and protecting the electrode, the handle 3 is used for supporting the flexible tube 2, the flexible working electrode 1 can be bent along with the flexible endoscope and reaches a target tissue, meanwhile, the water outlet pipeline 6 provides a physiological saline medium, and through the front end of the flexible working electrode 1, the saline medium can be continuously excited between the working electrode and the loop electrode at the front end of the flexible electrode to generate plasma for efficient cutting and ablation, so that the cutting and blood coagulation function efficiency of the flexible working electrode 1 is improved, meanwhile, the thermal injury and nerve damage to normal tissues are reduced, the operation time is shortened, the injury and postoperative pain of a patient are reduced, the postoperative recovery speed of the patient is fast, and the operation cost of the patient is reduced; the cable 4 is used for connecting the soft working electrode 1 with the connector 5, the connector 5 is connected with the energy platform, and the plasma can realize operations such as cutting and ablating tissues at a lower temperature (40-70 ℃). The flexible working electrode 1 excites molecules in a saline medium to generate plasma through electric energy under a specific waveform, and high-speed charged particles in the plasma can directly break molecular bonds of tissues, so that the tissue of a human body is not damaged, and the action principle of the flexible working electrode is essentially different from that of a monopolar electrocoagulation wire which thermally burns the tissues by current. The heat damage of normal tissues is greatly reduced, thereby realizing safe and non-invasive effect. The cutter head of the soft plasma under the soft endoscope can be randomly bent under the soft endoscope and cannot be easily damaged like a laser cutter head. In one embodiment, the flexible working electrode 1 includes an emitter electrode 7, a flexible circuit electrode tube 8, and an insulating tube 9, the insulating tube 9 is sleeved on the emitter electrode 7, the flexible circuit electrode tube 8 is sleeved on the insulating tube 9, a gap is provided between the flexible circuit electrode tube 8 and the insulating tube 9, and the water outlet pipeline 6 sequentially passes through the flexible tube 2 and the flexible circuit electrode tube 8 and is communicated with the gap. The emitting electrode 7 may be in the shape of a column, a hook, a needle, a mushroom head, a T, etc., and can meet the requirements of focal surgery, as shown in fig. 6 to 8. The flexible working electrode 1 has a plurality of functions of hemostasis, ablation, cutting and punching, and is used for vaporizing, cutting, electrocoagulation, hemostasis, ablation, stripping, punching, clamping, snaring and the like for various visual pathological tissues and bleeding under an endoscope, particularly under a flexible endoscope. In addition, the flexible working electrode can be in a pincer shape, and the transmitting electrode can be in a circle shape and can expand and contract to be larger or smaller, as shown in figures 12-13, so as to adapt to ablation and cutting of different operations. A saline medium output channel is designed in the cutter body, saline with suspension pressure is easily dripped on the front soft working electrode, the saline medium output channel is designed in the cutter body, the fiber loop electrode mesh wire and the soft working electrode wire are also arranged in the cutter body, and the cutter head generates current and voltage meeting the surgical function through a high-frequency plasma generator, so that the functions of vaporization, cutting, stripping, ablation, hemostasis and the like are achieved. The cutter head is designed to be bipolar, the distance between the output soft working electrode and the return circuit electrode is short and is generally only 1-5mm, the power used in the operation is smaller and safer, and the current range is only within a few millimeters. The design of the cutter head uses saline as an electrode output medium, and simultaneously, the temperature generated by cutting, vaporization and ablation operations can be reduced by using the saline medium, complications such as edema, adhesion and the like after the operations are reduced, blood is reduced to form scab, and the effect of non-adhesion is achieved.

The working principle and the beneficial technical effects of the technical scheme are as follows: the water outlet pipeline 6 passes through the flexible loop electrode tube 8 and is provided with a gap between the insulating tubes 9, so that continuous physiological saline medium flows out of the loop tube and enters the space between the transmitting electrode 7 and the flexible loop electrode tube 8 during working, and continuous and effective plasma is generated when the plasma cutter head is connected with the plasma host machine for working.

In one embodiment, the handle 3 is provided with anti-slip lines on the outer wall.

The working principle and the beneficial technical effects of the technical scheme are as follows: the anti-slip lines can increase friction and prevent slipping when the handle 3 is held by hand.

In one embodiment, as shown in fig. 5, a flow control device is disposed on the water outlet line 6, and the flow control device comprises:

one end of the first connecting pipe 10 is communicated with the water outlet pipeline 6;

the small-diameter end of the conical pipe 11 is communicated with the other end of the connecting pipe 10, the large-diameter end of the conical pipe 11 is communicated with one end of a second connecting pipe 12, and the other end of the second connecting pipe 12 is suspended;

the plugging block 13 is arranged in the conical pipe 11, the side wall of the plugging block 13 is tightly attached to the inner wall of the conical pipe 11, and the plugging block 13 can reciprocate up and down along the conical pipe 11;

and the spring 14 is arranged in the conical pipe 11, one end of the spring 14 is connected with the upper end of the blocking block 13, and the other end of the spring 14 is connected with one end, far away from the water outlet pipeline 6, of the first connecting pipe 10.

The working principle and the beneficial technical effects of the technical scheme are as follows: when the water delivery flow of outlet conduit 6 is too big, a large amount of normal saline medium can influence the cutting of plasma, melt, when discharge is big, the water pressure in outlet conduit 6 will increase, rivers are through first connecting pipe 10, promote shutoff piece 13 along conical duct 11 downstream, and stimulate spring 14 simultaneously, when appearing the clearance between the lateral wall of shutoff piece 13 and conical duct 11, normal saline medium just can discharge through second connecting pipe 12 through the clearance, water pressure will reduce, at this moment, under the effect of the elastic tension of spring 14, stimulate shutoff piece 13 upward movement, make conical duct 11 blocked once more. The blocking block can prevent the flow velocity of the physiological saline medium in the water outlet pipeline 6 from being too high, and when the flow velocity exceeds the warning value, the physiological saline medium is discharged and shunted through the second connecting pipe 12, so that the water velocity in the water outlet pipeline 6 is always kept within a normal range, and the cutting efficiency of the soft working electrode is ensured.

In one embodiment, a sealing ring is disposed on a sidewall of the block 13.

The working principle and the beneficial technical effects of the technical scheme are as follows: the sealing ring can improve the sealing effect of the plugging block 13 and prevent leakage.

In one embodiment, the end of the second connecting tube 12 away from the conical tube 11 is provided with a cover 15.

The working principle and the beneficial technical effects of the technical scheme are as follows: the cover 15 can be covered on the second connection pipe 12 when not in use, thereby preventing the entry of foreign matters.

In one embodiment, the cap 15 is threadedly coupled to the second connection tube 12.

The working principle and the beneficial technical effects of the technical scheme are as follows: the cover 15 is in threaded connection with the second connecting pipe 12, so that the cover is convenient to detach and mount.

In one embodiment, as shown in fig. 9-10, further comprising a constant-speed water supply device, the constant-speed water supply device comprises:

one end of the water tank 16 is communicated with one end, far away from the handle 3, of the water outlet pipeline 6, a water injection pipe 17 is arranged at the top end of the water tank 16, a sealing cover 18 is arranged at the upper end of the water injection pipe 17, a baffle plate 19 is arranged in the water tank 16, and the baffle plate 19 is tightly attached to the inner wall of the water tank 16 and can reciprocate left and right along the water tank 16;

the power box 20 is arranged on the right side of the water tank 16, a first through hole 21 is formed in the right side wall of the water tank 16, a push rod 22 is arranged in the first through hole 21, one end of the push rod 22 is connected with a baffle 19, a rack 23 in the horizontal direction is arranged in the power box 20, one end of the rack 23 is connected with the other end of the push rod 22, a second through hole 24 is formed in the right side wall of the power box 20, a connecting rod 25 is arranged in the second through hole 24, one end of the connecting rod 25 is connected with the other end of the rack 23, the other end of the connecting rod 25 extends out of the power box 20 and is fixedly connected with a limiting plate 32, a spring 26 is arranged between the power box 20 and the limiting plate 32, and the spring 26 is sleeved on;

the gear 27 is arranged above the rack 23, the gear 27 is meshed with the rack 23, a rotating shaft 28 is arranged on the axis of the gear 27, and two ends of the rotating shaft 28 are mounted on the wall surface of the power box 20 through bearings;

the power box 20 is provided with a groove body 29, the groove body 29 is arranged on the outer wall of the power box 20, an electric motor 30 is arranged on the inner wall of the groove body 29, and an output shaft 31 of the electric motor 30 is connected with one end of the rotating shaft 28.

The working principle and the beneficial technical effects of the technical scheme are as follows: when the emitter electrode needs to supply water, the motor 30 is started, the motor 30 drives the rotating shaft and the gear 27 to rotate, the gear 27 is meshed with the gear rack 23 to drive the gear rack 23, the push rod 22, the connecting rod 25 and the limiting plate 32 to move leftwards, the spring 26 is extruded at the same time, the push rod 22 pushes the baffle plate to move leftwards in the water tank along the first through hole 21, and the physiological saline medium in the water tank 16 is extruded into the water outlet pipeline 6 to be used together with the emitter electrode. Due to the uniform rotation of the motor, the baffle can be pushed forward at a uniform speed through the meshing of the rack and the gear, the uniform supply of the physiological saline medium is ensured, the uniform quantitative supply is realized, and the treatment effect of the operation is ensured. After use, the motor is turned off, the push plate 19 moves to the initial state under the action of the elastic force of the spring 26, the sealing cover 18 is opened, and a new physiological saline medium is injected through the water injection pipe 17 for next standby.

In one embodiment, the groove body 29 is provided with a flow regulating device, which includes:

the cylinder 33 is arranged on the outer wall of the groove body 29, a movable column 34 is arranged in the cylinder 33, the movable column 34 is tightly attached to the inner wall of the cylinder 33, the movable column 34 can be arranged on the right end of the cylinder 33 and communicated with one end of a third connecting pipe 35, the other end of the third connecting pipe 35 is communicated with the water outlet pipeline 6, an exhaust pipe 36 is arranged on the left side wall of the cylinder 33, a second spring 38 is arranged in the cylinder 33, one end of the second spring 38 is fixedly connected with the left end of the movable column 34, and the other end of the second spring 38 is fixedly connected with the right side of the inner wall of the cylinder 33;

barrel 33 upper end is provided with guide way 37, the left and right sides setting of guide way 37 is provided with first end plate 39 and second end plate 40 respectively, be provided with speed reduction switch 41 on first end plate 39's the inside wall, be provided with acceleration switch 42 on the lateral wall of second end plate 40, speed reduction switch 41 with acceleration switch 42 all with motor 30 electric connection, be provided with depression bar 43 on the removal post 34 outer wall, depression bar 43 upper end is passed guide way 37 extends to the barrel 33 top, depression bar 43 is in speed reduction switch 41 with between the acceleration switch 42. Be provided with the protective housing on barrel 33, first end plate 39 and second end plate 40 of protective housing parcel play the guard action to internal member, prevent that external force from influencing depression bar 43's removal, influence flow control's precision.

The working principle and the beneficial technical effects of the technical scheme are as follows: when the water outlet pipeline 6 is supplied with the physiological saline medium water, water is applied to the movable column 34 through the third connecting pipe 35, the movable column 34 is maintained in a balanced state under the combined action of water pressure and the second spring 38, when the water flow speed is high, the water pressure is increased, the movable column 34 moves leftwards, the pressure rod 43 is driven to move leftwards along the guide port 37, and when the pressure rod contacts the speed reducing switch 41 on the first end plate 39, the speed reducing switch 41 reduces the rotating speed of the motor 30, so that the water flow speed is reduced; when the water flow speed is slow, the water pressure is reduced, the moving column 34 moves rightwards under the action of the elastic force of the second spring 38, the pressing rod 43 is driven to move rightwards along the guide port 37, and when the pressing rod contacts the acceleration switch 42 on the second end plate 40, the acceleration switch 42 increases the rotating speed of the motor 30, so that the water flow speed is increased, the automatic adjustment of the flow speed is realized, the flow of the water outlet pipeline 6 is always maintained in a normal range, the cutting precision of the operation and the quality of the operation are improved, and the wound is reduced.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A soft plasma scalpel under soft endoscope is characterized by comprising:

a flexible working electrode (1), a hose (2) is sleeved outside the flexible working electrode (1), the flexible working electrode (1) extends out of one end of the hose (2),

one end of the handle (3) is connected with the other end of the hose (2), one end of a cable (4) penetrates through the other end of the handle (3) and is electrically connected with the soft working electrode (1), the other end of the cable (4) is electrically connected with one end of a connector (5), and the other end of the connector (5) is electrically connected with a host;

one end of the water outlet pipeline (6) penetrates through the handle (3) and extends into the soft working electrode (1), and a physiological saline medium is input into the other end of the water outlet pipeline (6).

2. The soft plasma scalpel under soft endoscope according to claim 1, wherein the soft working electrode (1) comprises a transmitting electrode (7), a soft loop electrode tube (8) and an insulating tube (9), the insulating tube (9) is sleeved on the transmitting electrode (7), the soft loop electrode tube (8) is sleeved on the insulating tube (9), a gap is arranged between the soft loop electrode tube (8) and the insulating tube (9), and the water outlet pipeline (6) sequentially penetrates through the hose (2), the soft loop electrode tube (8) and the gap to be communicated.

3. The soft under-endoscope soft plasma scalpel according to claim 1, wherein the outer wall of the handle (3) is provided with anti-slip lines.

4. The soft endoendoscopic soft plasma scalpel according to claim 1, wherein the water outlet pipeline (6) is provided with a flow control device, and the flow control device comprises:

one end of the first connecting pipe (10) is communicated with the water outlet pipeline (6);

the small-diameter end of the conical pipe (11) is communicated with the other end of the connecting pipe (10), the large-diameter end of the conical pipe (11) is communicated with one end of a second connecting pipe (12), and the other end of the second connecting pipe (12) is suspended;

the plugging block (13) is arranged in the conical pipe (11), the side wall of the plugging block (13) is tightly attached to the inner wall of the conical pipe (11), and the plugging block (13) can reciprocate up and down along the conical pipe (11);

the spring (14) is arranged in the conical pipe (11), one end of the spring (14) is connected with the upper end of the blocking block (13), and the other end of the spring (14) is connected with one end, far away from the water outlet pipeline (6), of the first connecting pipe (10).

5. The soft endoendoscopic soft plasma scalpel according to claim 4, wherein the side wall of the blocking block (13) is provided with a sealing ring.

6. The soft endoendoscopic soft plasma scalpel according to claim 4, wherein the end of the second connecting tube (12) away from the conical tube (11) is provided with a cover (15).

7. The soft endoendoscopic soft plasma scalpel according to claim 6, wherein the cap (15) is screwed to the second connecting tube (12).