A broad-spectrum liquid knife

Abstract

The present invention provides a broad-spectrum liquid knife with improved positioning accuracy, comprising: an outer tube, an inner tube and a transparent cover. The broad-spectrum liquid knife provided by the present invention can be used according to actual needs, and the spraying or pumping of the liquid knife head can be used independently, or it can be used in combination of spraying first and then pumping or pumping first and then spraying. By rotating, pulling and pulling the inner tube or the outer tube, the side holes of the outer tube are used for positioning, so as to achieve the purpose of accurate positioning; and the side holes of the outer tube are used to achieve the purpose of high-pressure impact or negative pressure adsorption of the lesion position, which is applicable to both liquids and gases, so as to improve the cleaning effect and positioning accuracy during the treatment process.

Description

Technical Field

[0001] The invention relates to the technical field of liquid knife, in particular to a broad-spectrum liquid knife. Background Art

[0002] At present, there are many kinds of diseases suffered by human beings, but diseases of blood vessels, respiratory tract and other cavities account for a large proportion, and the consequences are often very dangerous once they occur. At present, the treatment methods for diseases in the body's ducts are nothing more than drug treatment and interventional therapy. Interventional therapy can only place drugs or materials at the lesion to restore abnormal blood vessels to normal. However, these treatment methods also have the defects of slow treatment effect or incomplete treatment;

[0003] The development of liquid scalpels has provided a new treatment plan for vascular, respiratory and other cavity diseases. Currently, liquid scalpels are used in a small number of actual treatments, but there are still problems such as difficulty in positioning and low cleaning efficiency. Therefore, there is a lack of a liquid scalpel that can improve cleaning effects and positioning accuracy. Summary of the invention

[0004] The present invention provides a broad-spectrum liquid knife with improved positioning accuracy, so as to achieve the purpose of improving the cleaning effect and positioning accuracy of the liquid knife during use.

[0005] The present invention provides a broad-spectrum liquid knife with improved positioning accuracy, comprising: an outer tube, an inner tube and a transparent cover.

[0006] The inner tube is sleeved in the outer tube, one end of the inner tube extends outward from the inside of the outer tube, and the end of the inner tube extending out of the outer tube is used for a wire to pass through from the outside of the inner tube to the inside of the inner tube;

[0007] The other end of the outer tube is provided with a transparent cover with an arc structure, the transparent cover is used to close the opening of the outer tube, and the arc surface of the arc structure is convex toward the outside of the outer tube;

[0008] One end of the inner tube located inside the outer tube is connected to the outer tube, and a plurality of side holes are provided on the circumferential outer wall of the outer tube, each of which is used to connect the inside of the outer tube to the outside of the outer tube.

[0009] One end of the inner tube extending out of the outer tube is connected to the control part.

[0010] Preferably, the inner tube and the outer tube are both configured as tubular structures, and the inner tube is located at one end of the outer tube and is movably disposed inside the outer tube.

[0011] An inner tube notch is provided on the circumferential outer wall of one end of the inner tube located at the outer tube, and the inner tube notch and the outer tube side hole cooperate with each other to form a suction and spraying channel.

[0012] Preferably, the side holes are configured as circular holes or strip holes, and the side holes are evenly distributed on the outer wall of the outer tube along the axial center line of the outer tube to form side hole groups; a plurality of side hole groups are arranged at intervals.

[0013] Preferably, the side hole groups are arranged in a plurality of groups along the axial center line of the outer tube, and the side hole groups are arranged in a first arrangement group or a second arrangement group;

[0014] The centers of the side holes of two adjacent side hole groups in the first arrangement group are located on the same vertical line;

[0015] The side holes of the second arrangement group are arranged in a staggered manner in two adjacent side hole groups.

[0016] Preferably, a camera assembly is provided inside the outer tube, and the camera assembly is located at one end of the outer tube close to the transparent cover.

[0017] The wire of the camera assembly extends outward through the inner tube located inside the outer tube.

[0018] Preferably, the camera assembly comprises a camera module, and the camera module is arranged on a side of the housing close to the transparent cover;

[0019] The shell is bonded to the inner wall of the outer tube by sealant, and is used to form a waterproof cavity between the outer tube and the transparent cover. The camera module is located in the waterproof cavity, and the camera module is connected to the control unit by a wire.

[0020] The camera module is also provided with a light-emitting component, which is connected to the control unit via a wire. A plurality of light-emitting components are provided and are evenly distributed on the outside of the camera module with the camera module as the center.

[0021] Preferably, the control part comprises a sleeve tube, one end of the inner tube is sleeved and clamped on the end of the outer tube away from the transparent cover, and the outer wall of the end of the outer tube away from the transparent cover is sleeved with a sleeve tube, and the sleeve tube is used to sleeve the inner tube and the outer tube together.

[0022] One end of the inner tube close to the sleeve tube is connected to the solenoid valve.

[0023] Preferably, the solenoid valve is a two-position three-way solenoid valve, one of the ports of the solenoid valve is connected to the negative pressure pipeline, the other port is connected to the high pressure pipeline, and the third port of the solenoid valve is connected to the inner pipe;

[0024] The other end of the negative pressure pipeline away from the solenoid valve is connected to a liquid storage tank, and the outlet of the liquid storage tank is also connected to a negative pressure suction device;

[0025] The other end of the high-pressure pipeline away from the solenoid valve is connected to the high-pressure liquid and gas supply device.

[0026] Preferably, the inner wall of the outer tube is provided with a plurality of first limiting grooves at intervals, the first limiting grooves are evenly distributed along the axial center line of the outer tube, and the first limiting grooves are evenly distributed in even numbers;

[0027] The circumferential inner wall of the outer tube is provided with a plurality of conversion grooves at intervals along the extension direction of the axial center line of the outer tube;

[0028] Two groups of first limit blocks are symmetrically arranged on the circumferential outer wall of the inner tube, and the first limit blocks and the first limit grooves on the inner wall of the outer tube cooperate with each other;

[0029] The cross section of the first limiting groove is a "cross"-shaped structure, and the conversion groove is used for the first limiting block to rotate and change direction in the outer tube.

[0030] Preferably, the cavities of the inner tube and the outer tube are used for passing fluid, and the fluid includes liquid and gas.

[0031] The present invention provides a broad-spectrum liquid knife with improved positioning accuracy, comprising: an outer tube, an inner tube and a transparent cover, wherein the inner tube is sleeved inside the outer tube, one end of the inner tube extends outward from the interior of the outer tube, and the end of the inner tube extending out of the outer tube is used for a wire to pass from the outside of the inner tube to the inside of the inner tube; the other end of the outer tube is provided with a transparent cover with an arc structure, the transparent cover is used to close the opening of the outer tube, and the arc surface of the arc structure protrudes toward the outside of the outer tube; the end of the inner tube located inside the outer tube is connected to the outer tube, and the circumferential outer wall of the outer tube is provided with a plurality of side holes, each of the side holes is used for the interior of the outer tube to connect to the outside of the outer tube, and the end of the inner tube extending out of the outer tube is connected to a control unit.

[0032] The broad-spectrum liquid knife can be inserted and used independently, that is, the broad-spectrum liquid knife formed by the outer tube and the inner tube can be directly used to spray and draw, so as to achieve the purpose of surgical treatment of diseases by adjusting the water pressure of drawing and spraying. An additional cavity catheter can also be designed, or with the help of existing compatible pipelines, such as the intubation of a ventilator, a coronary artery guide catheter, etc., to provide guidance and support for the instrument when it is inserted into the human cavity; the catheter can be inserted into the natural cavity along the guide wire.

[0033] During diagnosis and treatment, when the lesion is in the form of a single point and fixed in position, the outer tube of the liquid knife can be used as a catheter; when there are multiple lesions and the instrument needs to be constantly moved and adjusted, the additional cavity catheter formed by the inner tube inside the outer tube is particularly important; for example, the liquid knife is used for lung suction. During the entire suction process after the outer tube is guided into the trachea, the outer tube only needs to be inserted into the trachea once, while the inner tube of the liquid knife can be plugged and pulled out multiple times inside the outer tube, thereby clearing different branches in the tree-like structure of the lung trachea; at the same time, the outer tube does not move, so that the outer tube can avoid frequent contact or friction with the throat, respiratory tract, etc. of the human body, effectively reducing the patient's comfort during intubation treatment, and effectively reducing the risk of trauma to the patient's respiratory tract or throat due to multiple intubations during the intubation process.

[0034] During diagnosis and treatment, the broad-spectrum liquid knife can use the camera assembly provided at the front end of the outer tube in the liquid knife head to facilitate intubation or transmission of images of the tissue at the front end of the outer tube during treatment, so that the doctor can conveniently view and operate the liquid knife head appropriately for the purpose of treatment;

[0035] It can be further extended that, with the help of external imaging fluoroscopy equipment (such as an X-ray machine), the operating unit can automatically control the axial displacement and angular bending of the main pipeline in the body's natural cavity or the accessory catheter through a computer according to the path and lesion location calculated by the main system, and guide the catheter along the accessory cavity to find the track and insert it to the lesion site.

[0036] The broad-spectrum liquid knife provided by the present invention can be used in combination of spraying or pumping of the liquid knife head according to actual needs, or spraying first and then pumping, or pumping first and then spraying.

[0037] Specifically, the end of the outer tube with a transparent cover is the front end, and the front end is used to be inserted into the cavity for diagnosis and treatment, the end of the inner tube away from the outer tube is used to connect the control unit, and the end of the inner tube located inside the outer tube can be rotatably arranged inside the outer tube; at the same time, the side hole arranged on the circumferential outer wall of the outer tube is connected to the inner tube, so that the inner tube can extract the waste liquid in the patient's cavity through the side hole; and the inner tube can achieve high-pressure liquid impact force on the lesion part inside the patient's cavity through the side hole of the outer tube, and use the liquid impact force to break the lesion part in the cavity, such as the purpose of dredging the thrombus in the blood vessel; or it can be used for the purpose of suction and cleaning the phlegm accumulated in the trachea. By rotating and pulling the inner tube or the outer tube, the side hole of the outer tube is used for positioning, and the purpose of precise positioning is achieved; and the side hole of the outer tube is used to achieve the purpose of high-pressure impact or negative pressure adsorption on the lesion position, so as to improve the cleaning effect and positioning accuracy during the treatment process.

[0038] The broad-spectrum liquid knife provided by the present invention is aimed at the deficiencies of existing technologies for treating diseases in the cavities of the human or animal body. It is an innovation in the treatment methods for diseases and blockages occurring in the existing cavities such as blood vessels and trachea in the human and animal body. It can effectively remove diseased tissues in other body cavities such as blood vessels and trachea, and provides a new and efficient treatment method for disease treatment. A camera component is built into the front end of the liquid knife head to facilitate the diagnosis and treatment of cavity diseases. During treatment, the inner and outer tube openings of the liquid knife head are combined in different forms through the control unit to form the effects of extraction, spraying, cutting, and peeling, thereby achieving all-round and precise treatment and removal of diseased tissues (such as thrombi in blood vessels or phlegm in trachea) in the cavity.

[0039] The present invention also provides a driving method for a broad-spectrum liquid knife with improved positioning accuracy, which is applicable to the broad-spectrum liquid knife with improved positioning accuracy, and comprises the following steps:

[0040] The inner tube is placed inside the outer tube, and the inner tube and the outer tube are installed on the control part;

[0041] Insert the ends of the inner tube and the outer tube away from the manipulation portion into the cavity that needs to be flushed or drained;

[0042] Start the control unit and make the inner tube reciprocate in the outer tube or reciprocate along the axial center line of the outer tube;

[0043] Position the suction and spray channel formed by the inner tube and the outer surface to the lesion that needs to be flushed or drained;

[0044] Start the negative pressure switch on the negative pressure suction device, use the negative pressure adjustment knob to adjust the pressure of the negative pressure pipeline, and use the negative pressure pipeline to perform negative pressure adsorption on the suction and spray channel through the two-position three-way solenoid valve;

[0045] Alternatively, the high-pressure switch of the high-pressure liquid and gas supply device is started, the pressure of the high-pressure pipeline is adjusted using the high-pressure regulating knob, and the high-pressure pipeline is used to spray high-pressure gas and liquid into the suction and injection channel via the two-position three-way solenoid valve.

[0046] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0047] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0049] In the attached picture:

[0050] Figure 1 It is a structural schematic diagram of the present invention;

[0051] Figure 2 It is a schematic diagram of the outer tube structure of the present invention;

[0052] Figure 3a This is a schematic structural diagram of a first embodiment of the outer tube side hole of the present invention;

[0053] Figure 3b This is a schematic structural diagram of a second embodiment of the outer tube side hole of the present invention;

[0054] Figure 3c This is a schematic structural diagram of a third embodiment of the outer tube side hole of the present invention;

[0055] Figure 3d This is a schematic structural diagram of a fourth embodiment of the outer tube side hole of the present invention;

[0056] Figure 4 A schematic diagram of the inner tube structure of the present invention;

[0057] Figure 5 A schematic diagram of the camera assembly structure of the present invention;

[0058] Figure 6 A schematic diagram of the connection structure of the negative pressure suction device and the high pressure liquid and gas supply device of the present invention;

[0059] Figure 7 A schematic diagram of the connection structure between the first limiting block and the first limiting groove of the present invention;

[0060] Figure 8 A schematic diagram of the conversion tank structure of the present invention;

[0061] Fig. 9 It is a schematic diagram of the structure of the rotating mechanism of the present invention;

[0062] Fig.10 is a schematic diagram of the third swing rod structure of the present invention;

[0063] Fig.11 It is a schematic diagram of the structure of the indicator rod of the present invention;

[0064] Fig.12 It is a schematic diagram of the pressurized pipeline structure of the present invention;

[0065] Among them, 1-outer tube, 2-transparent cover, 3-camera assembly, 4-camera module, 5-light-emitting part, 6-inner tube, 7-inner tube notch, 8-outer tube side hole, 9-wire, 11-negative pressure suction device, 12-negative pressure switch, 13-negative pressure adjustment knob, 14-negative pressure gauge, 15-liquid storage tank, 16-negative pressure pipeline, 17-high-pressure liquid and gas supply device, 18-high-pressure switch, 19-high-pressure adjustment knob, 20-pressure gauge, 21-high-pressure pipeline, 22-two-position three-way solenoid valve, 23-sleeve pipe,

[0066] 24-first limit block, 25-first limit slot, 26-conversion slot, 27-second limit block,

[0067] 28-first rotating shaft, 29-first connecting frame, 30-gear, 31-first rotating disk, 32-first sliding block, 33-sleeve, 34-first sliding groove, 35-first limiting column, 36-first swing rod,

[0068] 37-second limiting column, 38-second swing rod, 39-second rotating shaft, 40-second connecting frame, 41-third rotating shaft, 42-annular vertical plate, 43-first annular groove, 44-fourth rotating shaft, 45-second movable groove, 46-third connecting frame, 47-fourth swing rod, 48-indicator rod, 49-third swing rod, 50-third limiting column, 51-second connecting rod, 52-third connecting rod, 53-piston, 54-pressurized pipe, 55-transfer pipe, 56-tooth plate. DETAILED DESCRIPTION

[0069] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0070] according to Figure 1-12 As shown, an embodiment of the present invention provides a broad-spectrum liquid knife with improved positioning accuracy, comprising: an outer tube 1, an inner tube 6 and a transparent cover 2, wherein the inner tube 6 is sleeved in the outer tube 1, one end of the inner tube 6 extends outward from the interior of the outer tube 1, and the end of the inner tube 6 extending out of the outer tube 1 is used for a wire 9 to pass from the outside of the inner tube 6 to the inside of the inner tube 6; the other end of the outer tube 1 is provided with a transparent cover 2 with an arc structure, and the transparent cover 2 is used to close the opening of the outer tube 1, and the arc surface of the arc structure protrudes toward the outside of the outer tube 1; the end of the inner tube 6 located inside the outer tube 1 is connected to the outer tube 1, and the circumferential outer wall of the outer tube 1 is provided with a plurality of outer tube side holes 8, each of the outer tube side holes 8 is used for the inside of the outer tube 1 to connect the outside of the outer tube 1, and the end of the inner tube 6 extending out of the outer tube 1 is connected to the control part.

[0071] The broad-spectrum liquid knife can be inserted and used independently, that is, the broad-spectrum liquid knife formed by the outer tube 1 and the inner tube 6 can be directly used to spray and draw, so as to achieve the purpose of surgical treatment of diseases by adjusting the water pressure of drawing and spraying. An additional cavity catheter can also be designed, or with the help of existing compatible pipelines, such as the intubation of a ventilator, a coronary artery guide catheter, etc., to provide guidance and support for the instrument when it is inserted into the human cavity; the catheter can be inserted into the natural cavity along the guide wire.

[0072] During diagnosis and treatment, when the lesion is in the form of a single point and the position is fixed, the outer tube 1 of the liquid knife can be used as a catheter;

[0073] The broad-spectrum liquid knife can be inserted into the cavity independently for use, that is, the spray and pump functions of the liquid knife head can be directly used to perform surgical treatment on certain diseases. An additional cavity catheter can also be designed, or with the help of existing compatible pipelines, such as the intubation tube of the ventilator, the coronary artery guide catheter, etc., to provide guidance and support for the instrument when it is inserted into the human cavity. The catheter can also be inserted into the body cavity along the guide wire.

[0074] When the lesion is in the form of a single point and the position is fixed, the outer tube 1 of the main pipe of the liquid knife can be used as a catheter; when there are multiple lesions and the instrument needs to be constantly moved and adjusted, the additional cavity catheter formed by the inner tube 6 inside the outer tube 1 is particularly important; for example, the liquid knife is used for lung suction. During the entire suction process after guiding the outer tube 1 into the trachea, the outer tube 1 only needs to be inserted into the trachea once, while the inner tube 6 of the liquid knife can be plugged and pulled out multiple times inside the outer tube, thereby clearing different branches in the tree-like structure of the lung trachea; at the same time, the outer tube 1 does not move, so that the outer tube 1 can avoid frequent contact or friction with the throat, respiratory tract, etc. of the human body, effectively reducing the patient's comfort during intubation treatment, and effectively reducing the risk of trauma to the patient's respiratory tract or throat due to multiple intubations during the intubation process.

[0075] During diagnosis and treatment, the broad-spectrum liquid knife can use the camera assembly 3 provided at the front end of the outer tube 1 in the liquid knife head for intubation or treatment to conveniently transmit images of the tissue at the front end of the outer tube 1, so that the doctor can conveniently view and operate the liquid knife head appropriately for the purpose of treatment;

[0076] It can be further extended that, with the help of external imaging fluoroscopy equipment (such as an X-ray machine), the operating unit can automatically control the axial displacement and angular bending of the main pipeline in the body's natural cavity or the accessory catheter through a computer according to the path and lesion location calculated by the main system, and guide the catheter along the accessory cavity to find the track and insert it to the lesion site.

[0077] The broad-spectrum liquid knife provided by the present invention can be used in combination of spraying or pumping of the liquid knife head according to actual needs, or spraying first and then pumping, or pumping first and then spraying.

[0078] Specifically, the end of the outer tube 1 with the transparent cover 2 is the front end, which is used to be inserted into the cavity for diagnosis and treatment. The end of the inner tube 6 away from the outer tube 1 is used to connect to the control unit, and the end of the inner tube 6 located inside the outer tube 1 can be rotatably arranged in the outer tube 1; at the same time, the outer tube side hole 8 provided on the circumferential outer wall of the outer tube 1 is connected to the inner tube 6, so that the inner tube 6 can extract the waste liquid in the patient's cavity through the outer tube side hole 8; and the inner tube 6 can achieve high-pressure liquid impact force on the diseased part inside the patient's cavity through the outer tube side hole 8 of the outer tube 1, and use the liquid impact force to break the diseased part in the cavity, such as clearing the thrombus in the blood vessel; or it can be used for the purpose of suctioning and clearing sputum accumulated in the trachea. By rotating and pulling the inner tube 6 or the outer tube 1, the outer tube side hole 8 of the outer tube 1 is used for positioning to achieve the purpose of precise positioning; and the outer tube side hole 8 of the outer tube 1 is used to achieve the purpose of high-pressure impact or negative-pressure adsorption on the lesion position, thereby improving the cleaning effect and positioning accuracy during the treatment process.

[0079] The broad-spectrum liquid knife provided by the present invention is aimed at the deficiencies of existing technologies for treating diseases in the cavities of the human or animal body. It is an innovation in the treatment methods for diseases and blockages occurring in the cavities such as blood vessels and trachea in the human and animal bodies. It can effectively remove diseased tissues in other body cavities such as blood vessels and trachea, and provides a new and efficient treatment method for disease treatment. A camera assembly 3 is built into the front end of the liquid knife head to facilitate the diagnosis and treatment of cavity diseases. During treatment, the openings of the inner and outer tubes 1 of the liquid knife head are combined in different forms through the control unit to form the effects of extraction, spraying, cutting, and peeling, thereby achieving all-round and precise treatment and removal of diseased tissues (such as thrombi in blood vessels or phlegm in trachea) in the cavity.

[0080] In one embodiment, the inner tube 6 and the outer tube 1 are both configured as tubular structures, the inner tube 6 is located at one end of the outer tube 1 and is movably arranged inside the outer tube 1, and the inner tube 6 is located at one end of the outer tube 1 and an inner tube notch 7 is provided on the circumferential outer wall thereof, the inner tube notch 7 and the outer tube side hole 8 cooperate with each other to form a suction and spraying channel.

[0081] The outer tube side holes 8 are set as circular holes or strip holes, and the outer tube side holes 8 are evenly distributed on the outer wall of the outer tube 1 along the axial center line of the outer tube 1 to form 8 groups of outer tube side holes; multiple groups of the outer tube side holes 8 are arranged at intervals.

[0082] The outer tube side hole 8 groups are arranged in multiple groups along the axial center line of the outer tube 1, and the outer tube side hole 8 groups are the first arrangement group or the second arrangement group; the first arrangement group is that the centers of the outer tube side holes 8 of two adjacent outer tube side hole 8 groups are located on the same vertical line; the second arrangement group is that the outer tube side holes 8 of two adjacent outer tube side hole 8 groups are spaced and staggered.

[0083] A camera assembly 3 is disposed inside the outer tube 1 . The camera assembly 3 is disposed at one end of the outer tube 1 close to the transparent cover 2 . A wire 9 of the camera assembly 3 extends outward through an inner tube 6 located inside the outer tube 1 .

[0084] The camera assembly 3 includes a camera module 4, and the camera module 4 is arranged on a side of the housing close to the transparent cover 2;

[0085] The shell is bonded to the inner wall of the outer tube 1 by a sealant, and is used to form a waterproof cavity between the outer tube 1 and the transparent cover 2. The camera module 4 is located in the waterproof cavity, and the camera module 4 is connected to the control unit through a wire 9;

[0086] The camera module 1 is also provided with a light emitting member 5, and a plurality of light emitting members 5 are provided and are evenly distributed on the outside of the camera module 1 with the camera module 1 as the center.

[0087] In this embodiment, one end of the outer tube 1 provided with the outer tube side hole 8 and one end of the inner tube 6 provided with the inner tube notch 7 are free ends, and the other ends of the outer tube 1 and the inner tube 6 are connecting ends, which are used to connect the control unit. The circumferential outer wall of the free end is provided with a knife edge of various shapes, and the connecting end is connected to the corresponding pipe inside the control unit. Through the control unit, the outer tube 1 and the inner tube 6 can be reciprocated or rotated circumferentially according to the axial center line displacement of the inner tube 6. The free end head of the inner tube 6 can be designed into different shapes and specifications of applicable hole cutters according to actual use needs, and cooperate with the front end hole of the outer tube 1 to achieve different effects of the cutter head. For example, the outer tube side hole 8 is set as a circular hole, an elliptical hole, a strip hole, a square hole, a polygonal hole or an irregular hole.

[0088] The outer tube 1 is the outermost layer of the main pipe. The front end face of the free end of the outer tube 1 is designed with a hemispherical transparent cover 2, which is convenient for the use of a camera assembly 3 to take pictures and illuminate the cavity when the blade head enters the body cavity. At the same time, the spherical end face cover located at the front end is also convenient for the blade head to be inserted into the body cavity to protect the cavity from damage; the free end head is designed with a Mark mark and outer tube side holes 8 for liquid (gas) inlet and outlet with different sizes, shapes, and arrangements as needed. The Mark mark can be used for external fluoroscopic equipment to detect and locate. The outer tube side holes 8 can cooperate with the inner tube 6 of corresponding specifications to control the opening and closing, size, and size of the outer tube side holes 8 to form a precise diagnosis and treatment operation channel; the front end spherical transparent cover 2 of the outer tube 1 is equipped with a lighting and camera assembly 3 for observing the cavity when the liquid knife blade moves and rotates in the cavity; the camera assembly 3 is mainly composed of a camera module 4, a light-emitting component 5, and a connecting wire 9, and the camera assembly 3 is fixed in the front end spherical transparent cover 2 of the outer tube 1; the connecting end of the outer tube 1 is connected to the control unit.

[0089] The inner tube 6 is located inside the outer tube 1, is hollow inside, and has a free end in contact with the camera assembly 3. Its outer wall is attached to the inner wall of the outer tube 1. The free end of the inner tube 6 is designed with a Mark mark and different types of rectangular notches opened according to the needs of diagnosis and treatment. The connecting end is connected to the corresponding control mechanism in the control unit. Under the action of the control mechanism, the inner tube 6 can perform linear displacement and circumferential rotation in the outer tube 1, thereby realizing the diagnosis and treatment of different parts and directions of the liquid knife head in the body cavity.

[0090] The liquid knife head is mainly composed of an inner tube 6 and an opening set at the free end of the outer tube 1. The shape of the opening of the inner tube 6 can be a slot of different sizes and shapes. The shape of the opening of the outer tube 1 can be various, such as a round hole, a slot hole, etc., and its arrangement can also be various, such as a single row horizontal arrangement, a multi-row horizontal arrangement, an oblique arrangement, etc. (see Figure 3a-3d ), under the action of the control unit, different opening forms of the inner and outer tubes 1 and different openings of the inner and outer tubes 1 are combined to form a suction and spray channel. By adjusting the relative rotation and displacement position between the inner tube 6 and the outer tube 1, the suction and spray channel is formed to be large and small, open and closed, thereby controlling the flow direction and size of the liquid (gas) body when it is sprayed out, achieving the treatment purpose of crushing, cutting, and peeling of the liquid knife head, and forming a rich and colorful use method of the liquid knife head. By adjusting the overlapping area between the outer tube side hole 8 of the outer tube 1 and the inner tube notch 7 of the inner tube 6, a strong spray of the knife head in a certain direction or a strong spray of a certain area can be achieved; at the same time, it can also achieve the purpose of single extraction of a certain area or the overall extraction of a certain area.

[0091] In one embodiment, the control part includes a sleeve tube 23, one end of the inner tube 6 is sleeved and clamped on the end of the outer tube 1 away from the transparent cover 2, and the circumferential outer wall of the end of the outer tube 1 away from the transparent cover 2 is sleeved with a sleeve tube 23, the sleeve tube 23 is used to sleeve the inner tube 6 and the outer tube 1 together, and the end of the inner tube 6 close to the sleeve tube 23 is connected to the solenoid valve.

[0092] The solenoid valve is a two-position three-way solenoid valve 22, one of the ways of the solenoid valve is connected to the negative pressure pipeline 16, the other way is connected to the high pressure pipeline 21, and the third way of the solenoid valve is connected to the inner tube 6; the other end of the negative pressure pipeline 16 away from the solenoid valve is connected to the liquid storage tank 15, and the outlet of the liquid storage tank 15 is also connected to the negative pressure suction device 11; the other end of the high pressure pipeline 21 away from the solenoid valve is connected to the high pressure liquid and gas supply device 17.

[0093] The main function of the control unit is to control the movement of the liquid knife and the treatment process and treatment method. The front end of the control unit is connected to the outer tube 1 and the inner tube 6 of the main pipeline, and the rear end is connected to the auxiliary system of the liquid knife. There is a connecting device connecting the inner and outer tubes 1 of the main pipeline, and a mechanical device that controls the liquid knife. The main function of the mechanical device is to manually or automatically control the axial displacement of the inner tube 6 in the outer tube 1 and the circumferential rotation in the outer tube 1, so as to achieve the purpose of accurately locating the lesion. The mechanical device is a rotating mechanism, which is mainly used to drive the inner tube 6 to rotate or reciprocate inside the outer tube 1, so as to achieve the purpose of adjusting the suction and spray channel.

[0094] A two-position three-way solenoid valve 22 is connected to the rear end of the control unit, and its function is to realize the conversion between high-pressure liquid (gas) delivery and negative pressure liquid (gas) extraction. The first interface of the two-position three-way solenoid valve 22 is connected to the high-pressure supply device, the second interface is connected to the liquid knife inner tube 6 through the control unit, and the third interface is connected to the negative pressure suction device 11. When the two-position three-way solenoid valve 22 works in the first position, the high-pressure pipeline 21 is connected to the liquid knife inner tube 6, and the negative pressure suction device 11 is closed; when the two-position three-way solenoid valve 22 works in the second position, the negative pressure suction pipeline is connected to the liquid knife inner tube 6, and the high-pressure pipeline 21 is closed.

[0095] The auxiliary system mainly provides high-pressure liquid (gas) to the liquid knife to assist the liquid knife in completing the operation. At the same time, it also provides negative pressure for suction after the operation to remove the postoperative lesion waste from the cavity and realize the complete treatment process. When high-pressure liquid (gas) is needed for treatment, the two-position three-way solenoid valve 22 works in the first position, the first interface is connected to the high-pressure pipeline 21, and the second interface is connected to the inner tube 6 through the control part, and the high-pressure liquid (or gas) is provided to the liquid knife head through the inner tube 6; that is, the high-pressure liquid (or gas) is provided to the suction and spray channel through the inner tube 6; further realizing the removal of the lesion site.

[0096] After the lesion is removed with high-pressure liquid (or gas), the removed lesion waste needs to be discharged from the body. At this time, the negative pressure switch 12 on the negative pressure suction device 11 is pressed, and the negative pressure suction device 11 works. At the same time, the two-position three-way solenoid valve 22 is switched to another position, and the interface of the two-position three-way solenoid valve 22 is disconnected from the high-pressure pipeline 21 and connected to the negative pressure pipeline 16, so that the lesion waste removed during treatment is sucked into the liquid storage tank 15 through the inner tube 6, thus completing the entire treatment process. Here, according to the needs of different treatments, the high-pressure substance used for liquid knife treatment can be liquid or gas; the supply high pressure and the suction negative pressure can be easily adjusted on the panel according to the treatment needs.

[0097] The high-pressure liquid and gas supply device 17 is also provided with a high-pressure switch 18, a high-pressure regulating knob 19 and a pressure gauge 20. The high-pressure switch 18 is used to start or shut down the high-pressure liquid and gas supply device 17, the high-pressure regulating knob 19 is used to adjust the gas-liquid output pressure of the high-pressure pipeline 21, and the pressure gauge 20 is used for the operator to check the pressure value of the gas-liquid output pressure output to the high-pressure pipeline 21.

[0098] The negative pressure suction device 11 is also provided with a negative pressure switch 12, a negative pressure regulating knob 13 and a negative pressure gauge 14. The negative pressure switch 12 is used to start or shut down the negative pressure suction device 11, the negative pressure regulating knob 13 is used to adjust the gas-liquid output pressure of the negative pressure pipeline 16, and the negative pressure gauge 14 is used for the operator to check the pressure value of the gas-liquid output pressure output to the negative pressure pipeline 16.

[0099] When negative pressure operation is required, close the high pressure switch 18 of the high pressure liquid and gas supply device 17; open the negative pressure suction device 11, the negative pressure switch 12, at this time, the negative pressure pipe 16 will suck the inner tube 6, so that the inner tube 6 can be sucked through the suction and spray channel. The waste liquid in the human body's cavity is sucked out, and the waste liquid is further drained to the negative pressure pipeline through the two-position three-way solenoid valve 22 16, and then the waste liquid is pumped into the liquid storage tank 15 through the negative pressure pipe 16; when high pressure work is required, the negative pressure suction device 11 is closed. The negative pressure switch 12 opens the high pressure switch 18 of the high pressure liquid and gas supply device 17; the negative pressure suction device 11 stops suction and passes The high-pressure liquid-gas supply device 17 outputs gas and liquid to the high-pressure pipeline 21, and further transmits the gas and liquid to the high-pressure pipeline 21 through the two-position three-way solenoid valve 22. The liquid is input into the inner tube 6, and then the gas and liquid are sprayed out from the suction and spray channel to the lesion site through the inner tube 6.

[0100] In one embodiment, the inner wall of the outer tube 1 is provided with a plurality of first limit grooves 25 at intervals, and the first limit grooves 25 are evenly distributed along the axial center line of the outer tube 1, and the first limit grooves 25 are evenly distributed; the circumferential inner wall of the outer tube 1 is provided with a plurality of conversion grooves 26 at intervals along the extension direction of the axial center line of the outer tube 1; the circumferential outer wall of the inner tube 6 is symmetrically provided with two groups of first limit blocks 24, and the first limit blocks 24 and the first limit grooves 25 on the inner wall of the outer tube 1 cooperate with each other; and the cross-section of the first limit groove 25 is a "cross" structure, and the conversion groove 26 is used for the first limit block 24 to rotate and reverse in the outer tube 1.

[0101] The inner wall of the end of the outer tube 1 away from the transparent cover is also provided with a second limit block 27 , which is set as an annular structure and is used to limit the first limit block 24 of the circumferential outer wall of the inner tube 6 from escaping from the inner cavity of the outer tube 1 .

[0102] In this embodiment, Figure 7 When the inner tube 6 moves left and right in the outer tube 1, the first limiting block 24 on the circumferential outer wall of the inner tube 6 and the first limiting groove 25 on the circumferential inner wall of the outer tube 1 can cooperate with each other to achieve directional left and right movement, thereby achieving the purpose of adjusting the size of the suction and spray channel by cooperating with the inner tube notch 7 of the inner tube 6 and the outer tube side hole 8 of the outer tube 1.

[0103] When rotation is required, pull the inner tube 6 so that it reaches the position of the conversion groove 26, thereby utilizing the conversion groove 26 to rotate the inner tube 6 in the outer tube 1, further achieving the purpose of adjusting the size of the suction and spray during the rotation of the inner tube 6 and the outer tube 1.

[0104] according to Figure 1-12 As shown, in one embodiment, the mechanical device is a rotating mechanism, and the rotating mechanism is mainly used to drive the inner tube 6 to rotate or reciprocate inside the outer tube 1, so as to achieve the purpose of adjusting the suction and spraying channel.

[0105] The rotating mechanism is arranged in the sleeve tube 23, and the rotating mechanism is connected to and drives the inner tube 6 in the sleeve tube 23; the rotating mechanism comprises: a first rotating disk 31 and a first connecting frame 29, and a gear 30 is fixedly arranged on the axis of one side of the first rotating disk 31,

[0106] A first slide groove 34 is further provided on a side of the first rotating disk 31 close to the gear 30, a first slider 32 is slidably provided in the first slide groove 34, a tooth plate 56 is connected to a side of the first slider 32 away from the first slide groove 34, and the tooth plate 56 is meshed with the gear 30;

[0107] The circumferential outer wall of the first rotating disk 31 is connected with a pressurized pipe 54, the input end of the pressurized pipe 54 is connected with the first sliding groove 34, the output end of the pressurized pipe 54 is connected with a transfer pipe 55, a piston 53 is provided at one end of the pressurized pipe 54 close to the first sliding groove 34, the end of the piston 53 close to the first sliding groove 34 is connected with a third connecting rod 52, and the other end of the third connecting rod 52 is connected with the end of the first sliding block 32;

[0108] The transfer tube 55 is connected to one end of the inner tube 6 close to the sleeve tube 23 and is used to input the gas in the pressurized pipeline 54 into the inner tube 6 for pressurization;

[0109] The first connecting frame 29 is arranged on a side close to the gear 30, and the circumferential outer wall of the first connecting frame 29 is fixed to the inner wall of the sleeve tube 23. The first rotating shaft 28 is rotatably arranged on the first connecting frame 29.

[0110] One end of the first rotating shaft 28 close to the gear 30 is connected to the first swing rod 36, and the other end of the first swing rod 36 is provided with a sleeve 33. A first limiting column 35 is provided on a side of the toothed plate 56 away from the first slider 32, and the first limiting column 35 is rotatably connected to the notch of the sleeve 33.

[0111] The other end of the first rotating shaft 28 is connected to a linear driver, a fixed end of the linear driver is rotatably disposed on the inner wall of the sleeve tube 23 , and a telescopic end of the linear driver is connected to the inner tube 6 .

[0112] In this embodiment, when the rotating mechanism is working, a side of the first rotating disk away from the gear is connected to the driving mechanism through the third rotating shaft. After the driving mechanism is started, the third rotating shaft will rotate, and the rotation of the third rotating shaft will drive the first rotating disk to rotate. After the first rotating disk rotates, it will drive the gear to rotate. The rotation of the gear will enable the tooth plate to mesh and swing, thereby achieving the reciprocating motion of the first slider in the first sliding groove; thereby, the first slider drives the second connecting rod to move back and forth, thereby achieving the reciprocating motion of the piston connected to the second connecting rod in the pressurized pipe for pressurization, and the pressurized pipe can transmit the pressurized air pressure to the inner tube 6 via the transfer tube for pressurization;

[0113] At the same time, in the process of pressurizing the inner tube 6, since the first slider carries the tooth plate to reciprocate during the sliding process, the first limit column arranged on the surface of the tooth plate will swing with the first rocker arm connected to the sleeve, and the first rocker arm will swing the first rotating shaft during the swinging process, so as to achieve the purpose that the first rotating shaft can rotate the inner tube connected to the linear drive inside the outer tube. When the inner tube needs to move linearly, starting the linear drive can achieve the purpose that the inner tube can move linearly inside the outer appearance. The linear drive and the driving mechanism are connected to a switch via a wire, and the switch is located outside the control unit.

[0114] In this way, the purpose of pressurization can be achieved during the rotation of the inner tube, and when the inner tube is not working, there is no need for pressurization, which achieves the purpose of energy saving and the purpose of improving work efficiency, thereby reducing the need for multiple pressurization mechanisms to be configured during actual use.

[0115] In one embodiment, a third rotating shaft 41 is provided on a side of the first rotating disk 31 away from the gear 30, and the third rotating shaft 41 is connected to the motor. Two annular vertical plates 42 protruding outward are also provided on a side of the first rotating disk 31 away from the gear 30, and a first annular groove 43 is formed between the annular vertical plates 42, and the first annular groove 43 is set to a polygonal structure;

[0116] A second connecting frame 40 and a third connecting frame 46 are arranged on the inner wall of one side of the sleeve tube 23 close to the first annular groove 43. The second connecting frame 40 is rotatably connected to the second rotating shaft 39. One end of the second rotating shaft 39 close to the first rotating disk 31 is respectively connected to the second swing rod 38 and the third swing rod 49. The second swing rod 38 and the third swing rod 49 form an L structure with each other.

[0117] The second swing rod 38 is provided with a second limit column 37 protruding outward at one end away from the third swing rod 49, and the second limit column 37 is located in the first annular groove 43 and reciprocates; the third swing rod 49 is provided with a third limit column 50 protruding outward at one end away from the second swing rod 38, and the third limit column 50 is used for slidingly setting in the second movable groove 45 provided at one end of the second connecting rod 51;

[0118] The other end of the second connecting rod 51 away from the second movable groove 45 is fixedly connected to the fourth rotating shaft 44, and the fourth rotating shaft 44 is rotatably arranged on the third connecting frame 46. One end of the fourth rotating shaft 44 away from the second connecting rod 51 is fixedly connected to one end of the fourth swing rod 47, and the other end of the fourth swing rod 47 is provided with an outwardly protruding indicating rod 48;

[0119] The indicator rod 48 is located on a side of the fourth swing rod 47 away from the first turntable 31, and the fourth swing rod 47 extends from the inside of the sleeve tube 23 to the outside of the sleeve tube 23. A third rotating shaft 41 is provided on a side of the first turntable 31 away from the gear 30, and the third rotating shaft 41 is used to connect to the motor.

[0120] In this embodiment, when the third rotating shaft is driven by the motor to rotate, since the liquid knife is located inside the cavity, the medical staff can only observe the position of the outer tube in the cavity through the camera assembly during operation; the position of the inner tube in the outer tube cannot be viewed. Therefore, an indicator rod is provided on the side of the first rotating disk away from the gear, and the position of the inner tube is indicated by the indicator rod, so that the medical staff can further adjust the position of the inner tube according to the position and state of the outer tube in the cavity.

[0121] The end opening of the sleeve tube 23 away from the inner tube is set as an opening or provided with a transparent cover. When in use, the third rotating shaft is driven by a motor, and the first rotating disk rotates along with the third rotating shaft. When the first rotating disk rotates, the annular vertical plate arranged on the surface of the first rotating disk rotates. The annular vertical plate is an irregular polygonal structure, and an irregular polygonal first active groove is formed between the polygonal structures, and each vertex of the polygon is provided with an arc chamfer.

[0122] The center of the first movable groove and the third rotating shaft or the first rotating disk are arranged at intervals. Therefore, when the first rotating disk rotates and realizes the movement of the first movable groove, the second limiting column arranged in the first movable groove will swing along with the polygonal structure of the annular vertical plate, thereby realizing the swing of the second swing rod. Since the second swing rod and the third swing rod are both arranged on the second connecting frame through the rotation of the second rotating shaft; therefore, when the third swing rod swings, the third limiting column will swing together. When the third limiting column swings, it will swing in the second movable groove of the second connecting rod, thereby driving the fourth rotating shaft at the other end of the second connecting rod to rotate on the third connecting frame. When the fourth rotating shaft rotates, it will drive the fourth swing rod to swing, and the indicating rod connected to the other end of the fourth swing rod will swing, and the indicating rod can indicate at least three directions.

[0123] The end of the sleeve tube away from the inner tube is provided with a disc-shaped structure scale, and the disc-shaped structure scale is used to mark the position indicated by the indicator rod, so as to further assist the medical staff in guiding the rotation position of the inner tube when the outer tube is used to work in the cavity; it is convenient for the medical staff to judge the rotation of the inner tube according to the indication direction of the indicator rod, and then realize the adjustment range of the inner tube notch and the outer tube side hole to adjust the size when the inner tube is rotated with the outer tube, so as to adjust and observe the liquid output or gas output of the liquid knife according to the adjustment range;

[0124] The outer wall of the indicator rod is provided with scales along the axial extension direction. The linear drive can also be arranged between the motor and the third rotating shaft. The first rotating shaft is directly connected to the inner tube, so as to achieve the purpose of adjusting the extension and retraction of the inner tube inside the outer tube by adjusting the extension and retraction of the linear drive and the third rotating shaft. The scales on the outer wall of the indicator rod facilitate the linear drive to indicate the position of the inner tube when it is extended and retracted inside the outer tube during driving, and facilitate observation of the inner tube and the outer tube when adjusting the inner tube notch and the outer tube side hole to adjust the liquid output or gas output; thereby cutting or flushing is performed according to the liquid output or gas output.

[0125] The present invention also provides a driving method for a broad-spectrum liquid knife with improved positioning accuracy, which is applicable to the broad-spectrum liquid knife with improved positioning accuracy, and comprises the following steps:

[0126] The inner tube 6 is sleeved inside the outer tube 1, and the inner tube 6 and the outer tube 1 are installed on the control part;

[0127] Insert the inner tube 6 and the outer tube 1 at one end away from the manipulation portion into the cavity that needs to be flushed or drained;

[0128] Start the control unit and make the inner tube 6 reciprocate in the outer tube 1 or reciprocate along the axial center line of the outer tube 1;

[0129] Position the suction and spray channel formed by the inner tube 6 and the outer tube to the lesion location that needs to be flushed or drained;

[0130] Start the negative pressure switch 12 on the negative pressure suction device 11, use the negative pressure adjustment knob 13 to adjust the pressure of the negative pressure pipeline 16, and use the negative pressure pipeline 16 to perform negative pressure adsorption on the suction and spray channel via the two-position three-way solenoid valve 22;

[0131] Alternatively, the high pressure switch 18 of the high pressure liquid and gas supply device 17 is started, the pressure of the high pressure pipeline 21 is adjusted by the high pressure regulating knob 19, and the high pressure pipeline 21 is used to perform high pressure gas and liquid injection to the suction and injection channel via the two-position three-way solenoid valve 22.

[0132] The broad-spectrum liquid knife can be inserted and used independently, that is, the broad-spectrum liquid knife formed by the outer tube 1 and the inner tube 6 can be directly used to spray and draw, so as to achieve the purpose of surgical treatment of diseases by adjusting the water pressure of drawing and spraying. An additional cavity catheter can also be designed, or with the help of existing compatible pipelines, such as the intubation of a ventilator, a coronary artery guide catheter, etc., to provide guidance and support for the instrument when it is inserted into the human cavity; the catheter can be inserted into the natural cavity along the guide wire.

[0133] During diagnosis and treatment, when the lesion is in the form of a single point and the position is fixed, the outer tube 1 of the liquid knife can be used as a catheter;

[0134] The broad-spectrum liquid knife can be inserted into the cavity independently for use, that is, the spray and pump functions of the liquid knife head can be directly used to perform surgical treatment on certain diseases. An additional cavity catheter can also be designed, or with the help of existing compatible pipelines, such as the intubation tube of the ventilator, the coronary artery guide catheter, etc., to provide guidance and support for the instrument when it is inserted into the human cavity. The catheter can also be inserted into the body cavity along the guide wire.

[0135] When the lesion is in the form of a single point and the position is fixed, the outer tube 1 of the main pipe of the liquid knife can be used as a catheter; when there are multiple lesions and the instrument needs to be constantly moved and adjusted, the additional cavity catheter formed by the inner tube 6 inside the outer tube 1 is particularly important; for example, the liquid knife is used for lung suction. During the entire suction process after guiding the outer tube 1 into the trachea, the outer tube 1 only needs to be inserted into the trachea once, while the inner tube 6 of the liquid knife can be plugged and pulled out multiple times inside the outer tube, thereby clearing different branches in the tree-like structure of the lung trachea; at the same time, the outer tube 1 does not move, so that the outer tube 1 can avoid frequent contact or friction with the throat, respiratory tract, etc. of the human body, effectively reducing the patient's comfort during intubation treatment, and effectively reducing the risk of trauma to the patient's respiratory tract or throat due to multiple intubations during the intubation process.

[0136] During diagnosis and treatment, the broad-spectrum liquid knife can use the camera assembly 3 provided at the front end of the outer tube 1 in the liquid knife head for intubation or treatment to conveniently transmit images of the tissue at the front end of the outer tube 1, so that the doctor can conveniently view and operate the liquid knife head appropriately for the purpose of treatment;

[0137] It can be further extended that, with the help of external imaging fluoroscopy equipment (such as an X-ray machine), the operating unit can automatically control the axial displacement and angular bending of the main pipeline in the body's natural cavity or the accessory catheter through a computer according to the path and lesion location calculated by the main system, and guide the catheter along the accessory cavity to find the track and insert it to the lesion site.

[0138] The broad-spectrum liquid knife provided by the present invention can be used in combination of spraying or pumping of the liquid knife head according to actual needs, or spraying first and then pumping, or pumping first and then spraying.

[0139] Specifically, the end of the outer tube 1 with the transparent cover 2 is the front end, which is used to be inserted into the cavity for diagnosis and treatment. The end of the inner tube 6 away from the outer tube 1 is used to connect to the control unit, and the end of the inner tube 6 located inside the outer tube 1 can be rotatably arranged in the outer tube 1; at the same time, the outer tube side hole 8 provided on the circumferential outer wall of the outer tube 1 is connected to the inner tube 6, so that the inner tube 6 can extract the waste liquid in the patient's cavity through the outer tube side hole 8; and the inner tube 6 can achieve high-pressure liquid impact force on the diseased part inside the patient's cavity through the outer tube side hole 8 of the outer tube 1, and use the liquid impact force to break the diseased part in the cavity, such as clearing the thrombus in the blood vessel; or it can be used for the purpose of suctioning and clearing sputum accumulated in the trachea. By rotating and pulling the inner tube 6 or the outer tube 1, the outer tube side hole 8 of the outer tube 1 is used for positioning to achieve the purpose of precise positioning; and the outer tube side hole 8 of the outer tube 1 is used to achieve the purpose of high-pressure impact or negative-pressure adsorption on the lesion position, thereby improving the cleaning effect and positioning accuracy during the treatment process.

[0140] The broad-spectrum liquid knife provided by the present invention is aimed at the deficiencies of existing technologies for treating diseases in the cavities of the human or animal body. It is an innovation in the treatment methods for diseases and blockages occurring in the cavities such as blood vessels and trachea in the human and animal bodies. It can effectively remove diseased tissues in other body cavities such as blood vessels and trachea, and provides a new and efficient treatment method for disease treatment. A camera assembly 3 is built into the front end of the liquid knife head to facilitate the diagnosis and treatment of cavity diseases. During treatment, the openings of the inner and outer tubes 1 of the liquid knife head are combined in different forms through the control unit to form the effects of extraction, spraying, cutting, and peeling, thereby achieving all-round and precise treatment and removal of diseased tissues (such as thrombi in blood vessels or phlegm in trachea) in the cavity.

[0141] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A broad-spectrum liquid knife, characterized in that: include: Outer tube, inner tube and transparent cover, The inner tube is sleeved in the outer tube, one end of the inner tube extends outward from the inside of the outer tube, and the end of the inner tube extending out of the outer tube is used for a wire to pass through from the outside of the inner tube to the inside of the inner tube; The other end of the outer tube is provided with a transparent cover with an arc structure, the transparent cover is used to close the opening of the outer tube, and the arc surface of the arc structure is convex toward the outside of the outer tube; One end of the inner tube located inside the outer tube is connected to the outer tube, and the circumferential outer wall of the outer tube is provided with at least one side hole, each of which is used to connect the inside of the outer tube to the outside of the outer tube. One end of the inner tube extending out of the outer tube is connected to the control part; The control part includes a sleeve tube, one end of the inner tube is sleeved and clamped on the end of the outer tube away from the transparent cover, and the outer wall of the end of the outer tube away from the transparent cover is sleeved with a sleeve tube, and the sleeve tube is used to sleeve the inner tube and the outer tube together. One end of the inner tube close to the sleeve tube is connected to a solenoid valve; The solenoid valve is a two-position three-way solenoid valve, one of the ports of the solenoid valve is connected to the negative pressure pipeline, the other port is connected to the high pressure pipeline, and the third port of the solenoid valve is connected to the inner pipe; The other end of the negative pressure pipeline away from the solenoid valve is connected to a liquid storage tank, and the outlet of the liquid storage tank is also connected to a negative pressure suction device; The other end of the high-pressure pipeline away from the solenoid valve is connected to the high-pressure liquid and gas supply device; The front end of the control part is connected to the outer tube and the inner tube of the main pipeline, and the rear end is connected to the auxiliary system of the liquid knife. There is a connecting device connecting the inner and outer tubes of the main pipeline inside, and a mechanical device that controls the liquid knife. The main function of the mechanical device is to manually or automatically control the axial displacement of the inner tube in the outer tube and the circumferential rotation in the outer tube to achieve the purpose of accurately locating the lesion site. The mechanical device is a rotating mechanism, which is mainly used to drive the inner tube to rotate or reciprocate inside the outer tube, so as to achieve the purpose of adjusting the suction and spraying channel. The mechanical device is a rotating mechanism, which is mainly used to drive the inner tube to rotate or reciprocate inside the outer tube, so as to achieve the purpose of adjusting the suction and spray channel. The rotating mechanism is arranged in the sleeve tube, and the rotating mechanism is connected to and drives the inner tube in the sleeve tube; the rotating mechanism comprises: a first rotating disk and a first connecting frame, and a gear is fixedly arranged on the axis of one side of the first rotating disk, A first slide groove is further provided on a side of the first rotating disk close to the gear, a first slider is slidably provided in the first slide groove, a tooth plate is connected to a side of the first slider away from the first slide groove, and the tooth plate and the gear are meshed with each other; A pressurized pipe is connected to the circumferential outer wall of the first rotating disk, the input end of the pressurized pipe is connected to the first chute, the output end of the pressurized pipe is connected to the transfer pipe, a piston is provided at one end of the pressurized pipe close to the first chute, one end of the piston close to the first chute is connected to a third connecting rod, and the other end of the third connecting rod is connected to the end of the first slider; The transfer tube is connected to one end of the inner tube close to the sleeve tube and is used to input the gas in the pressurized pipeline into the inner tube for pressurization; The first connecting frame is arranged on a side close to the gear, and the circumferential outer wall of the first connecting frame is fixed to the inner wall of the sleeve pipe. The first connecting frame is rotatably provided with a first rotating shaft. One end of the first rotating shaft close to the gear is connected to a first swing rod, the other end of the first swing rod is provided with a sleeve, a first limiting column is provided on a side of the toothed plate away from the first slider, and the first limiting column is rotatably connected to a notch of the sleeve; The other end of the first rotating shaft is connected to a linear drive, the fixed end of the linear drive is rotatably arranged on the inner wall of the sleeve tube, and the telescopic end of the linear drive is connected to the inner tube. A third rotating shaft is provided on a side of the first rotating disk away from the gear, and the third rotating shaft is connected to the motor. Two annular vertical plates protruding outward are also provided on the side of the first rotating disk away from the gear, and a first annular groove is formed between the annular vertical plates, and the first annular groove is set to a polygonal structure; A second connecting frame and a third connecting frame are arranged on the inner wall of one side of the sleeve tube close to the first annular groove, the second connecting frame is rotatably connected to the second rotating shaft, and the second rotating shaft is connected to the second swing rod and the third swing rod at one end close to the first rotating disk, and the second swing rod and the third swing rod form an L structure with each other; A second limiting column protruding outward is provided at one end of the second swing rod away from the third swing rod, and the second limiting column is located in the first annular groove and reciprocates; a third limiting column protruding outward is provided at one end of the third swing rod away from the second swing rod, and the third limiting column is used to be slidably arranged in a second movable groove arranged at one end of the second connecting rod; The other end of the second connecting rod away from the second movable groove is fixedly connected to a fourth rotating shaft, the fourth rotating shaft is rotatably arranged on the third connecting frame, one end of the fourth rotating shaft away from the second connecting rod is fixedly connected to one end of a fourth swing rod, and the other end of the fourth swing rod is provided with an outwardly protruding indicating rod; The indicator rod is located on a side of the fourth swing rod away from the first rotating disk, and the fourth swing rod extends from the inside of the sleeve tube to the outside of the sleeve tube. A third rotating shaft is provided on a side of the first rotating disk away from the gear, and the third rotating shaft is used to connect the motor. The high-pressure liquid and gas supply device is also provided with a high-pressure switch, a high-pressure regulating knob and a pressure gauge, wherein the high-pressure switch is used to start or shut down the high-pressure liquid and gas supply device, the high-pressure regulating knob is used to adjust the gas-liquid output pressure of the high-pressure pipeline, and the pressure gauge is used for the operator to check the pressure value of the gas-liquid output pressure output to the high-pressure pipeline; The negative pressure suction device is also provided with a negative pressure switch, a negative pressure regulating knob and a negative pressure gauge. The negative pressure switch is used to start or shut down the negative pressure suction device, the negative pressure regulating knob is used to adjust the gas-liquid output pressure of the negative pressure pipeline, and the negative pressure gauge is used for the operator to check the pressure value of the gas-liquid output pressure output to the negative pressure pipeline. The inner wall of the outer tube is provided with a plurality of first limit grooves at intervals, and the first limit grooves are evenly distributed along the axial center line of the outer tube, and the first limit grooves are evenly distributed in even numbers; the circumferential inner wall of the outer tube is provided with a plurality of conversion grooves at intervals along the extension direction of the axial center line of the outer tube; the circumferential outer wall of the inner tube is symmetrically provided with two groups of first limit blocks, and the first limit blocks and the first limit grooves of the inner wall of the outer tube cooperate with each other; and the cross section of the first limit groove is a "cross" shaped structure, and the conversion groove is used for the first limit block to rotate and change direction in the outer tube, A second stopper is also provided on the inner wall of one end of the outer tube away from the transparent cover. The second stopper is an annular structure and is used to limit the first stopper on the circumferential outer wall of the inner tube from falling out of the inner cavity of the outer tube.

2. The broad-spectrum liquid knife according to claim 1, characterized in that: The inner tube and the outer tube are both configured as tubular structures, and the inner tube is located at one end of the outer tube and is movably disposed inside the outer tube. An inner tube notch is provided on the circumferential outer wall of one end of the inner tube located at the outer tube, and the inner tube notch and the outer tube side hole cooperate with each other to form a suction and spraying channel.

3. The broad-spectrum liquid knife according to claim 1, characterized in that: The side holes are configured as circular holes, and the side holes are evenly distributed on the outer wall of the outer tube along the axial center line of the outer tube to form side hole groups; and a plurality of side hole groups are arranged at intervals.

4. A broad-spectrum liquid knife as claimed in claim 3, characterized in that: The side hole groups are arranged in a plurality of groups at intervals along the axial center line of the outer tube, and the side hole groups are first arrangement groups or second arrangement groups.

5. The broad-spectrum liquid knife according to claim 1, characterized in that: A camera assembly is disposed inside the outer tube, and the camera assembly is disposed at one end of the outer tube close to the transparent cover. The wire of the camera assembly extends outward through the inner tube located inside the outer tube.

6. A broad-spectrum liquid knife as claimed in claim 5, characterized in that: The camera assembly includes a camera module, and the camera module is arranged on a side of the housing close to the transparent cover; The shell is bonded to the inner wall of the outer tube by sealant, and is used to form a waterproof cavity between the outer tube and the transparent cover. The camera module is located in the waterproof cavity, and the camera module is connected to the control unit by a wire. The camera module is also provided with a light-emitting component, which is connected to the control unit via a wire. A plurality of light-emitting components are provided and are evenly distributed on the outside of the camera module with the camera module as the center.

7. The broad-spectrum liquid knife according to claim 1, characterized in that: The cavities of the inner tube and the outer tube are used for passing fluid, and the fluid includes liquid and gas.

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