Plasma knife and plasma operation equipment
By introducing deformable connectors and a multi-channel system into the plasma ablation device, the problem of incomplete removal of lesions caused by the complex structure of the ear, nose, and throat area has been solved, enabling precise cutting and ablation of hidden spaces and reducing the risk of expanding the scope of surgery.
Patent Information
- Application Number
- CN202422414890.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The complex structure and winding passages of the ear, nose, and throat area make it difficult for the scalpel to reach hidden spaces, resulting in the risk of incomplete removal of diseased tissue or an expanded surgical area.
A plasma ablation device is designed that allows the ablation head to change position in multiple directions by incorporating a deformable connector between the handle and the ablation head. Combined with a multi-channel system, this enables precise cutting and ablation of lesions.
It improves the resection effect of lesions in hidden spaces, reduces the possibility of expanding the surgical scope, and lowers the risk of harm to patients.
Smart Images
Figure CN223516425U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of medical devices, in particular to a plasma knife and a plasma surgical device. BACKGROUND
[0002] Low-temperature plasma radiofrequency ablation is often used for the treatment of diseases such as tonsil hypertrophy, chronic tonsillitis, chronic rhinitis, allergic rhinitis, sinusitis, nasal polyps, nosebleeds, ear canal tumors, otitis media, and various otolaryngological benign and malignant tumors.
[0003] The operation method of low-temperature plasma radiofrequency ablation is to extend the knife head on the plasma surgical device into the lesion site of the ear, nose and throat, and to emit radiofrequency energy to the lesion tissue in the lesion site through the knife head to cut and ablate the lesion tissue.
[0004] However, the structure of the ear, nose and throat is complex, and the channel is winding and tortuous, resulting in many hidden spaces such as dead angles, and the knife head cannot reach these hidden spaces, so there is a situation that the lesion tissue in the hidden space is not completely removed, or there is a situation that the surgical range is expanded to cause unnecessary damage to the patient in order to remove the lesion tissue in the hidden space. CONTENT OF THE INVENTION
[0005] The present disclosure provides a plasma knife and a plasma surgical device, which adjusts the position of the knife head on the plasma knife before surgery to cut and ablate the hidden space of the lesion site without expanding the surgical range.
[0006] In a first aspect, the plasma knife provided by the present disclosure can include a handle, a knife head, and a connecting piece. The handle is provided with a first pipeline. The knife head is provided with a second pipeline and a firing end opening at one end of the second pipeline. The connecting piece is provided with a third pipeline, and the connecting piece is connected to the handle corresponding to the opening of one end of the first pipeline and the knife head corresponding to the opening of the other end of the second pipeline, respectively, and the third pipeline is in communication with the first pipeline and the second pipeline, respectively. The connecting piece has at least a first direction and a second direction of deformation to change the position of the knife head relative to the handle in the first direction and / or the second direction.
[0007] In some embodiments, the connecting piece is a pipe to form the third pipeline therein, and the connecting piece is provided with a folding part from at least part of the section connecting the handle to the knife head. The folding part can make the knife head extend and retract relative to the handle, and the folding part can make the knife head bend relative to the handle.
[0008] In some embodiments, the folding width of the folding part near one end of the handle of the connecting piece is greater than the folding width of the folding part near the other end of the connecting piece.
[0009] In some embodiments, the folding width of the folding portion gradually decreases from the end close to the handle to the end close to the blade head.
[0010] In some embodiments, the plasma knife can further comprise: a first delivery tube and a second delivery tube, the first delivery tube is arranged in the first pipe, the third pipe and the second pipe, and one end of the first delivery tube is openable to be opposite to the excitation end; the second delivery tube is arranged in the first pipe, the third pipe and the second pipe, and one end of the second delivery tube is openable to be opposite to the excitation end.
[0011] In some embodiments, the plasma knife can further comprise: a connecting tube and a blocking member, the connecting tube is connected with the side wall of the first delivery tube and the side wall of the second delivery tube respectively, and communicates with the inside of the first delivery tube and the inside of the second delivery tube respectively; the blocking member is arranged in the connecting tube to divide the connecting tube into at least two sections, and the blocking member is openable to make the two sections communicate.
[0012] In some embodiments, the plasma knife can further comprise: a power mechanism arranged in the pipe and connected with the first delivery tube and the second delivery tube, and at least part of the power mechanism is movable to drive the first delivery tube and the second delivery tube to move relative to the excitation end; wherein the pipe comprises: the first pipe, the second pipe and the third pipe.
[0013] In some embodiments, the plasma knife can further comprise: a third delivery tube arranged in the first pipe, the third pipe and the second pipe, and one end of the third delivery tube has a first branch delivery tube and a second branch delivery tube opposite to the excitation end respectively.
[0014] In some embodiments, the outer surface of the handle is provided with at least one of the following: a protrusion, a convex strip, an elastic layer, to increase the friction of the outer surface of the handle.
[0015] In the second aspect, the disclosure provides a plasma surgical device, which can comprise: the plasma knife of any one of the embodiments of the first aspect and a host, the host is connected with the plasma knife and can supply power to the excitation end of the plasma knife to make the excitation end emit radio frequency energy.
[0016] The plasma knife and the plasma surgical device provided by the present disclosure can be held by an operator, and the operator can apply force to the connecting piece according to the specific position of the lesion, so that the connecting piece is deformed, the position of the knife head relative to the handle is changed in the first direction and / or the second direction, and the knife head can be better aligned with the lesion position when the knife head enters the human body; when the knife head is aligned with the lesion position, the ablation water can be delivered to the lesion position through the first pipeline, the third pipeline and the second pipeline, radio frequency energy can be emitted to the lesion position through the excitation end to remove the lesion tissue, and the removed lesion tissue and the ablation water at the tissue position can be extracted through the second pipeline, the third pipeline and the first pipeline. Here, the operator can apply force to the connecting piece to deform the connecting piece, and then change the position of the knife head relative to the handle in the first direction and / or the second direction, so that the connecting piece can be deformed according to the specific position of the lesion, the incomplete removal of the lesion tissue in the hidden space can be reduced, and the probability of expanding the surgical range can be reduced.
[0017] The above description is only a summary of the technical solutions of the present disclosure. In order to more clearly understand the technical means of the present disclosure and can be implemented in accordance with the content of the description, the following will be described in detail with the preferred embodiments of the present disclosure and with the help of the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0019] Figure 1 is a structure schematic diagram of the plasma knife provided by the first embodiment of the present disclosure;
[0020] Figure 2 is a structure schematic diagram of the plasma knife provided by the first embodiment of the present disclosure; Figure 1 ;
[0021] Figure 3 is a structure schematic diagram of the plasma knife provided by the first embodiment of the present disclosure; Figure 2 ;
[0022] Figure 4 is a structure schematic diagram of the plasma knife provided by the first embodiment of the present disclosure;
[0023] Figure 5 is a structure schematic diagram of the plasma knife provided by the first embodiment of the present disclosure;
[0024] Figure 6Figure 7 is a partial structural schematic diagram of a connecting piece of the plasma knife provided by the third embodiment of the present disclosure;
[0025] Figure 7 Figure 8 is a perspective structural schematic diagram of the plasma knife provided by the fourth embodiment of the present disclosure;
[0026] Figure 8 Figure 9 is a partial cross-sectional structural schematic diagram of the plasma knife provided by the fifth embodiment of the present disclosure;
[0027] Figure 9 Figure 10 is an internal structural schematic diagram of the plasma knife provided by the sixth embodiment of the present disclosure;
[0028] Figure 10 Figure 11 is an internal structural schematic diagram of the plasma knife provided by the seventh embodiment of the present disclosure.
[0029] Legend of reference signs:
[0030] 10, plasma knife; 11, handle; 111, first pipeline; 12, knife head; 121, second pipeline; 122, excitation end; 13, connecting piece; 131, third pipeline; 132, folding part; 133, outer cladding layer; 141, first conveying pipe; 1411, groove; 1412, convex part; 142, second conveying pipe; 143, connecting pipe; 144, blocking piece; 145, third conveying pipe; 1451, first branch conveying pipe; 1452, second branch conveying pipe. DETAILED DESCRIPTION
[0031] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0032] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.
[0033] It should be noted that in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0034] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.
[0035] It should also be noted that in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.
[0036] All terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.
[0037] Techniques, methods and equipment known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be considered as part of the specification.
[0038] The ear, nose and throat structure is complex, the channel is winding, so there are more hidden spaces such as dead angles, and the knife head cannot reach these hidden spaces, so there are situations where the diseased tissue in the hidden space is not completely removed, or the surgical range is expanded to remove the diseased tissue in the hidden space, causing unnecessary damage to the patient.
[0039] A solution is to provide different shaped cutting heads to select different shaped cutting heads according to different hidden spaces, but the shapes of the cutting heads are limited and still cannot adapt to different hidden spaces.
[0040] The plasma knife of the present disclosure comprises a handle 11, a cutting head 12 and a connecting piece 13, the connecting piece 13 is connected with the handle 11 and the cutting head 12 respectively, and the connecting piece 13 has at least a first direction and a second direction deformation, so that the position of the cutting head 12 relative to the handle 11 can change in the first direction and / or the second direction. Thus, when it is necessary to cut and ablate the hidden space of the lesion site, the operator can deform the connecting piece 13 in the first direction and / or the second direction according to the depth and angle of the hidden space, so that the deformed cutting head 12 can enter the hidden space for operation, thereby reducing the probability of incomplete removal of the lesion tissue in the hidden space and unnecessary damage to the patient caused by expanding the operation range.
[0041] First aspect
[0042] The present disclosure provides a plasma knife 10, as shown in Figures 1 to 10 The plasma knife 10 can comprise a handle 11, a cutting head 12 and a connecting piece 13, the handle 11 is provided with a first pipeline 111; the cutting head 12 is provided with a second pipeline 121 and an excitation end 122 arranged at one end opening of the second pipeline 121; the connecting piece 13 is provided with a third pipeline 131, the connecting piece 13 is connected with the part corresponding to one end opening of the first pipeline 111 of the handle 11 and the part corresponding to the other end opening of the second pipeline 121 of the cutting head 12 respectively, and the third pipeline 131 is in communication with the first pipeline 111 and the second pipeline 121 respectively, and the connecting piece 13 has at least a first direction and a second direction deformation, so that the position of the cutting head 12 relative to the handle 11 can change in the first direction and / or the second direction.
[0043] In use, the operator can hold the handle 11 of the plasma knife 10 as shown in Figure 1 Then, according to the specific position of the lesion, force is applied to the connecting piece 13, so that the connecting piece 13 changes as shown in Figure 4The deformation of the connecting piece 13 is shown in the figure, so that the position of the blade head 12 relative to the handle 11 changes in the first direction and / or the second direction, so that when the blade head 12 enters the human body, it can better align the lesion position; when the blade head 12 aligns the lesion position, the ablation water (such as: normal saline) can be delivered to the lesion position through the first pipeline 111, the third pipeline 131 and the second pipeline 121, and the radio frequency energy can be emitted to the lesion position through the excitation end 122 (such as: electrode sheet) to remove the lesion tissue, and the ablation water of the lesion tissue and the lesion position can also be extracted through the second pipeline 121, the third pipeline 131 and the first pipeline 111. Here, the operator can apply force to the connecting piece 13 to deform the connecting piece 13, and then change the position of the blade head 12 relative to the handle 11 in the first direction and / or the second direction, so that the connecting piece 13 can be deformed according to the specific position of the lesion, so as to reduce the incomplete removal of the lesion tissue in the hidden space, and reduce the probability of expanding the operation range.
[0044] The inner wall or outer wall of the handle 11 away from the connecting piece 13 can be provided with a thread, so as to be connected with the host capable of emitting radio frequency energy to the excitation end 122, and the handle 11 can also be connected with the host through other ways, which is not limited here. The outer surface of the handle 11 can be provided with at least one of the following: a protrusion, a protruding strip, and an elastic layer, so as to increase the friction of the outer surface of the handle 11, so as to prevent the plasma knife 10 from sliding in the palm of the operator during operation, so as to cause trauma to the non-lesion position.
[0045] The first pipeline 111, the third pipeline 131 and the second pipeline 121 can be hollow pipelines formed in the handle 11, the connecting piece 13 and the blade head 12 respectively, or can be pipelines provided with a delivery pipe inside. The first pipeline 111, the third pipeline 131 and the second pipeline 121 are sequentially communicated, and the end of the second pipeline 121 away from the third pipeline 131 is opposite to the excitation end 122, so that the ablation water can flow to the position of the excitation end 122 through the first pipeline 111, the third pipeline 131 and the second pipeline 121 in sequence and be sent to the necrotic tissue, and the necrotic tissue removed by the excitation end 122 and the ablation water of the necrotic tissue can flow to the end of the handle 11 away from the connecting piece 13 through the second pipeline 121, the third pipeline 131 and the first pipeline 111 in sequence to be sent into a waste tank or the like; for example, see Figure 1As shown, the handle 11, the blade head 12 and the connecting member 13 are hollow structures to form the first pipe 111, the second pipe 121 and the third pipe 131 respectively, and the two ends of the connecting member 13 are connected with the handle 11 and the blade head 12 respectively, so that the first pipe 111, the third pipe 131 and the second pipe 121 are communicated in sequence. The radial dimensions of the first pipe 111, the second pipe 121 and the third pipe 131 can be consistent or not completely consistent.
[0046] The first direction and the second direction are different in the above description, the first direction can be the direction of the blade head 12 deviating from the axis of the handle 11, and the second direction can be the direction of the extension line of the axis of the handle 11 (such as the direction close to or away from the handle 11 on the axis of the handle 11); or, on the contrary, the first direction can be the direction of the extension line of the axis of the handle 11 (such as the direction close to or away from the handle 11 on the axis of the handle 11), and the second direction can be the direction of the blade head 12 deviating from the axis of the handle 11.
[0047] In some embodiments, referring to Figure 1 , Figure 2 , Figure 5 and Figure 6 , the connecting member 13 is a pipe to form the third pipe 131 in it, and it is provided with a folding part 132 from the end connected with the handle 11 to at least part of the section connected with the blade head 12, the folding part 132 can make the blade head 12 stretch relative to the handle 11, and the folding part 132 can make the blade head 12 bend relative to the handle 11. That is to say, the connecting member 13 includes multiple sections connected in sequence from the end connected with the handle 11 to the end connected with the blade head 12, and one or more of the sections are provided with the folding part 132, which presents a fold line shape as shown in Figure 5 or a wave shape as shown in Figure 6 , in this way, the blade head 12 can stretch in the direction away from the handle 11 to make the length of the folding part 132 from the end corresponding to the handle 11 to the end corresponding to the blade head 12 become larger; the blade head 12 can also compress in the direction close to the handle 11 to make the length of the folding part 132 from the end corresponding to the handle 11 to the end corresponding to the blade head 12 become smaller; the blade head 12 can also bend to one side of the plasma knife 10; the blade head 12 can first bend to one side of the plasma knife 10, and then stretch or compress; it can also be a combination of at least two of stretching, compressing and bending.
[0048] In this embodiment, the connecting member 13 is tubular to form a third pipe 131 therein, and the folding portion 132 provided on the connecting member 13 can be manually deformed by an operator to realize the extension and / or bending of the blade head 12 relative to the handle 11, so that the connecting member 13 can be conveniently deformed according to the specific position of the hidden space, and the folding portion 132 can be reversely deformed to obtain the required deformation amount when the deformation amount is excessive.
[0049] In some embodiments, in order to reduce the friction between the folding portion 132 and the human body after the folding portion 132 enters the human body, thereby causing the patient to feel uncomfortable, any position on the outer surface of the folding portion 132 is smooth, or the connecting member 13 can further include an outer cladding layer 133, which is a ring on the outer side of the connecting member 13 and has the folding portion 132 arranged therein. The outer cladding layer 133 can be a layer structure such as a film, a smooth deformable rubber tube, etc., and the layer structure can restore to the original state after deformation. For example, as shown in Figure 1 and Figure 2 The outer cladding layer 133 is a smooth deformable rubber tube, which can deform along with the deformation of the folding portion 132, and the folding portion 132 can support the outer cladding layer 133 to maintain the deformed posture after deformation, and when the folding portion 132 deforms excessively and reversely moves, the outer cladding layer 133 also reversely moves along with the folding portion 132, thereby reducing the disposal cost caused by the inability to continue using due to the inability to reversely move.
[0050] In some embodiments, as shown in Figure 5 The folding width d of the folding portion 132 near the handle 11 is greater than the folding width d of the folding portion 132 near the blade head 12. In this way, the extension and bending amount of the folding portion 132 near the blade head 12 is less than the extension and bending amount of the folding portion 132 near the handle 11, so that the end of the folding portion 132 near the handle 11 can be first bent at a large angle to roughly determine the position of the blade head 12, and then the end of the folding portion 132 near the blade head 12 can be bent at a small distance, so that the blade head 12 can correspond to the diseased tissue more accurately.
[0051] In some embodiments, as shown in Figure 5 The folding width of the folding portion 132 gradually decreases from the end near the handle 11 to the end near the blade head 12. In this way, not only can the end of the folding portion 132 near the handle 11 be first bent at a large angle to roughly determine the position of the blade head 12, and then the end of the folding portion 132 near the blade head 12 can be bent at a small distance, so that the blade head 12 can correspond to the diseased tissue more accurately, but the gradually decreasing trend makes the appearance profile of the folding portion 132 have a gradually decreasing visual beauty.
[0052] In some embodiments, as shown inFigure 7 As shown, the plasma knife 10 can further comprise: a first delivery tube 141 and a second delivery tube 142, the first delivery tube 141 is arranged in the first pipe 111, the third pipe 131 and the second pipe 121, and one end opening of the first delivery tube 141 is capable of being opposite to the excitation end 122; the second delivery tube 142 is arranged in the first pipe 111, the third pipe 131 and the second pipe 121, and one end opening of the second delivery tube 142 is capable of being opposite to the excitation end 122.
[0053] That is, the first delivery tube 141 extends from the first pipe 111 of the handle 11 to the second pipe 121 of the knife head 12 through the third pipe 131 of the connecting piece 13, the second delivery tube 142 also extends from the first pipe 111 of the handle 11 to the second pipe 121 of the knife head 12 through the third pipe 131 of the connecting piece 13, and one end opening of the first delivery tube 141 and one end opening of the second delivery tube 142 are opposite to the excitation end 122, so that the first delivery tube 141 can be used as a water injection tube for delivering ablation water to the lesion tissue, and the second delivery tube 142 can be used as a suction tube for sucking the lesion tissue cut by the excitation end 122 and the ablation water at the lesion tissue; or, the first delivery tube 141 can be used as a suction tube for sucking the lesion tissue cut by the excitation end 122 and the ablation water at the lesion tissue, and the second delivery tube 142 can be used as a water injection tube for delivering ablation water to the lesion tissue; further, the first delivery tube 141 and the second delivery tube 142 can be switched with each other during use to respectively complete water injection and suction.
[0054] For example, the first delivery tube 141 can be used as a water injection tube for delivering ablation water to the lesion tissue, and the second delivery tube 142 can be used as a suction tube for sucking the lesion tissue cut by the excitation end 122 and the ablation water at the lesion tissue, when the second delivery tube 142 is used for sucking the lesion tissue, the lesion tissue enters the second delivery tube 142 and blocks the second delivery tube 142, so that the suction process cannot continue, at this time, the switching can be performed, the second delivery tube 142 is used for injecting water to the lesion tissue so that the blocked lesion tissue is flushed to the lesion position by the water flow, and then the lesion tissue can be cut again by the excitation end 122 to be sucked by the first delivery tube 141. Here, the pipe diameter of the first delivery tube 141 can be greater than the pipe diameter of the second delivery tube 142, so that after the lesion tissue is flushed to the lesion position, the lesion tissue can be directly sucked by the first delivery tube 141 without being cut again by the excitation end 122.
[0055] In some embodiments, the inner tube wall of at least one of the first delivery tube 141 and the second delivery tube 142 is recessed with a groove 1411, and the friction of the inner wall of the groove 1411 is greater than the friction of the inner tube wall of the delivery tube (the first delivery tube 141 or the second delivery tube 142) at a position other than the groove 1411. In this way, when the delivery tube (the first delivery tube 141 or the second delivery tube 142) provided with the groove 1411 is used as a suction tube and is blocked by the lesion tissue, the presence of the suction force of the delivery tube and the greater friction of the inner wall of the groove 1411 (e.g., the inner wall of the groove 1411 is provided with a plurality of convex portions 1412 to have a greater friction) than the friction of the inner tube wall of the delivery tube at a position other than the groove 1411 (e.g., a smooth inner tube wall) makes the lesion tissue easily slide into the groove 1411 and stay in the groove 1411, so as to reduce the effect that the delivery tube is completely blocked and cannot continue to suck.
[0056] In some embodiments, referring to Figure 9 As shown, the plasma knife 10 can further include a connecting tube 143 and a blocking member 144. The connecting tube 143 is connected with the side wall of the first delivery tube 141 and the side wall of the second delivery tube 142 respectively, and communicates with the inside of the first delivery tube 141 and the inside of the second delivery tube 142 respectively. The blocking member 144 is arranged in the connecting tube 143 to divide the connecting tube 143 into at least two sections, and the blocking member 144 can be opened to make the two sections communicate. That is, the first delivery tube 141 and the second delivery tube 142 are connected through the connecting tube 143, and the blocking member 144 in the connecting tube 143 can make the first delivery tube 141 and the second delivery tube 142 communicate through the connecting tube 143, or can make the first delivery tube 141 and the second delivery tube 142 disconnected through the blocking member 144 in the connecting tube 143.
[0057] When the first delivery pipe 141 is used as a water injection pipe and the second delivery pipe 142 is used as a suction pipe, and the second delivery pipe 142 is blocked by the lesion tissue, different operations can be performed according to the position of the blocked lesion tissue; when the lesion tissue is located between the second delivery pipe 142 and the corresponding connecting pipe 143 and the excitation end 122, the suction of the second delivery pipe 142 can be stopped, and water injection (the water injection pressure is greater than the pressure when the ablation water is delivered) is performed through the first delivery pipe 141 to make the connecting pipe 143 connect the first delivery pipe 141 and the second delivery pipe 142, so that the injected water flows to the blocked lesion tissue through the connecting pipe 143 and pushes the blocked lesion tissue back into the human body, and then the water injection can be stopped to disconnect the connecting pipe 143 again through the blocking piece 144, and the lesion tissue back into the human body is cut again through the excitation end 122, and then the suction through the second delivery pipe 142 is continued; when the lesion component is located on the side of the connecting pipe 143 away from the excitation end 122 in the second delivery pipe 142, a suction greater than the suction when the lesion tissue cut by the lesion tissue at the ablation water is sucked by the second delivery pipe 142 is provided to the first delivery pipe 141, so that the connecting pipe 143 connects the first delivery pipe 141 and the second delivery pipe 142, so that the first delivery pipe 141 and the connecting pipe 143 form a new suction pipe to suck the cut lesion tissue and the ablation water at the lesion tissue.
[0058] The blocking piece 144 can be a sheet-shaped structure made of elastic materials such as rubber and silicone, and the blocking piece 144 is provided with a position such as a cutting line and an ant line that can be easily opened; when the first delivery pipe 141 delivers the ablation water, the cutting line and the ant line of the blocking piece 144 are not opened to block the connecting pipe 143, when the water injection pressure of the first delivery pipe 141 delivered to the excitation end 122 is greater than the pressure of the ablation water, the elasticity of the blocking piece 144 makes the blocking piece 144 protrude along the flow direction of the water injection to open the cutting line and the ant line, so as to open both ends of the connecting pipe 143 to connect the first delivery pipe 141 and the second delivery pipe 142; when the water injection stops, the blocking piece 144 returns to the original state; when the suction of the first delivery pipe 141 is greater than the suction when the cut lesion tissue at the lesion tissue sucked by the second delivery pipe 142, the elasticity of the blocking piece 144 makes the blocking piece 144 protrude along the direction of the suction to open the cutting line and the ant line, so as to open both ends of the connecting pipe 143 to connect the first delivery pipe 141 and the second delivery pipe 142; when the suction disappears, the blocking piece 144 returns to the original state.
[0059] In some embodiments, the plasma knife 10 can further comprise a power mechanism arranged in the pipeline and connected with the first delivery pipe 141 and the second delivery pipe 142, and at least a part of the power mechanism is movable to drive the first delivery pipe 141 and the second delivery pipe 142 to move relative to the excitation end 122; wherein the pipeline comprises the first pipeline 111, the second pipeline 121 and the third pipeline 131. In this way, the first delivery pipe 141 and the second delivery pipe 142 can be moved by the power mechanism to make the first delivery pipe 141 opposite to the excitation end 122 or the second delivery pipe 142 opposite to the excitation end 122, so that the injected ablation water can quickly and smoothly reach the lesion tissue in the human body, and the cut lesion tissue or the ablation water at the lesion tissue position can also be quickly and smoothly sucked out.
[0060] Here, the power mechanism can be a push block arranged on the plasma knife 10, the part of the push block in the plasma knife 10 clamps the first delivery pipe 141 and the second delivery pipe 142, or the part of the push block in the plasma knife 10 is adhesively connected with the first delivery pipe 141 and the second delivery pipe 142, or the part of the push block in the plasma knife 10 is connected with the first delivery pipe 141 and the second delivery pipe 142 by other means. When the first delivery pipe 141 and the second delivery pipe 142 need to be moved, the operator can push and pull the push block outside the plasma knife 10.
[0061] In some embodiments, referring to Figure 10 The plasma knife 10 can further comprise a third delivery pipe 145 arranged in the first pipeline 111, the third pipeline 131 and the second pipeline 121, and one end of the third delivery pipe 145 corresponding to the excitation end 122 has a first branch delivery pipe 1451 and a second branch delivery pipe 1452 opposite to the excitation end 122 respectively. In this way, the third delivery pipe 145 can be used as a pipeline for delivering ablation water and a pipeline for sucking the cut lesion tissue and the ablation water at the lesion tissue position, and the operator can tilt the plasma knife 10 to make the first branch delivery pipe 1451 opposite to the lesion tissue position of the human body or the second branch delivery pipe 1452 opposite to the lesion tissue position of the human body to quickly deliver the ablation water or suck the cut lesion tissue.
[0062] In an example, referring to Figures 1 to 4 The plasma knife 10 can comprise:
[0063] a handle 11, the handle 11 is hollow to form the first pipeline 111;
[0064] a knife head 12, the knife head 12 is hollow to form the second pipeline 121, and one end of the knife head 12 is provided with the excitation end 122 corresponding to the opening of one end of the second pipeline 121;
[0065] The connecting piece 13 is connected with the part corresponding to one end of the first pipe 111 of the handle 11 and the part corresponding to the other end of the second pipe 121 of the cutter head 12 respectively, and the connecting piece 13 comprises a folding part 132 and an outer cladding layer 133. The third pipe 131 in the folding part 132 is in communication with the first pipe 111 and the second pipe 121 respectively, and the outer cladding layer 133 is wrapped on the outer surface of the folding part 132 and flush with the outer surface of the handle 11 and the outer surface of the cutter head 12 respectively. The folding part 132 can realize the extension (such as the deformation in the first direction) and / or the bending (such as the deformation in the second direction) of the cutter head 12 relative to the handle 11 by manual force of the operator, so that the connecting piece 13 has at least the deformation in the first direction and the deformation in the second direction, thereby enabling the position of the cutter head 12 to change in the first direction and / or the second direction relative to the handle 11. Thus, the connecting piece 13 can be deformed according to the specific position of the lesion, so as to reduce the incomplete resection of the lesion tissue in the hidden space and reduce the probability of expanding the operation range. Meanwhile, the outer cladding layer 133 can reduce the friction between the cutter head 12 and the human body, thereby making the patient more comfortable.
[0066] The second aspect
[0067] The present disclosure provides a kind of plasma surgical equipment, it can include: the plasma knife 10 and host computer of any embodiment in the first aspect, host computer is connected with the plasma knife 10, and can be powered to the exciting end 122 of the plasma knife 10, to make the exciting end 122 emit radio frequency energy.
[0068] Specifically, the handle 11 in the above can enable medical staff to hold the handle 11 to move the plasma knife 10. The host computer in the above can power the exciting end 122 of the plasma knife 10, so that the exciting end 122 can emit radio frequency energy, and the radio frequency energy can cut the lesion tissue and the like.
[0069] It should be noted that the plasma knife in the plasma surgical equipment provided by the present disclosure is similar to the description of the plasma knife embodiments described above, and has similar beneficial effects as the plasma knife embodiments described above. For technical details not disclosed in the plasma surgical equipment embodiments of the present disclosure, please refer to the description of the plasma knife embodiments in the present disclosure for understanding, which will not be described here.
[0070] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.
[0071] Although some specific embodiments of the present disclosure have been described in detail by way of examples, one skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present disclosure. One skilled in the art should understand that the above embodiments can be modified or equivalent replacements can be made to some technical features without departing from the scope and spirit of the present disclosure. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict.
Claims
1. A plasma blade, characterized by, The plasma knife comprises: a handle provided with a first pipeline; a blade head provided with a second pipeline and a firing end opening at one end of the second pipeline; a connecting piece provided with a third pipeline, the connecting piece being connected with a part of the handle corresponding to an opening of the first pipeline and a part of the blade head corresponding to an opening of the other end of the second pipeline, respectively, and the third pipeline being in communication with the first pipeline and the second pipeline, respectively, the connecting piece having at least a first direction and a second direction of deformation to change the position of the blade head relative to the handle in the first direction and / or the second direction.
2. The plasma knife according to claim 1, wherein the connecting piece is a pipe to form the third pipeline in it, and at least part of the connecting piece from one end connected with the handle to one end connected with the blade head is provided with a folding part, the folding part being capable of stretching and retracting the blade head relative to the handle, and the folding part being capable of bending the blade head relative to the handle.
3. The plasma knife according to claim 2, wherein the folding width of the folding part near the one end of the handle is greater than the folding width of the folding part near the one end of the blade head.
4. The plasma knife according to claim 3, wherein the folding width of the folding part gradually decreases from the one end near the handle to the one end near the blade head.
5. The electrosurgical blade of claim 1, wherein, Further comprising: a first delivery pipe arranged in the first pipeline, the third pipeline and the second pipeline, and one end of the first delivery pipe being capable of being opposite to the firing end; a second delivery pipe arranged in the first pipeline, the third pipeline and the second pipeline, and one end of the second delivery pipe being capable of being opposite to the firing end.
6. The electrosurgical blade of claim 5, wherein, Further comprising: a connecting pipe connected with the side wall of the first delivery pipe and the side wall of the second delivery pipe, respectively, and in communication with the inside of the first delivery pipe and the inside of the second delivery pipe, respectively; a blocking piece arranged in the connecting pipe to divide the connecting pipe into at least two sections, and the blocking piece being capable of being opened to make the two sections communicate.
7. The electrosurgical blade of claim 5 or 6, wherein, Further comprising: a power mechanism arranged in the pipeline and connected with the first delivery pipe and the second delivery pipe, and at least part of the power mechanism being capable of moving to drive the first delivery pipe and the second delivery pipe to move relative to the firing end; wherein the pipeline comprises the first pipeline, the second pipeline and the third pipeline.
8. The electrosurgical blade of claim 1, wherein, Further comprising: a third delivery pipe arranged in the first pipeline, the third pipeline and the second pipeline, and one end of the third delivery pipe having a first branch delivery pipe and a second branch delivery pipe opposite to the firing end, respectively.
9. The plasma knife according to claim 1, wherein an outer surface of the handle is provided with at least one of the following: a protrusion, a protruding strip, an elastic layer, to increase the friction of the outer surface of the handle.
10. A plasma surgical apparatus, characterized by comprising: The plasma knife according to any one of claims 1 to 9; and a host connected with the plasma knife and capable of supplying power to the firing end of the plasma knife to make the firing end emit radio frequency energy.