Plasma knife and plasma operation equipment
By designing a deformable plasma cutting head and pipeline system, the difficulty of resection of hidden space caused by the complex structure of the otolaryngology area is solved, and the precise resection of hidden space and the control of the surgical scope is achieved, which improves the safety and effectiveness of the operation. .
Patent Information
- Application Number
- CN202411385583.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-01-03
AI Technical Summary
The complex structure of the ENT site makes it difficult for the plasma blade to reach the hidden space, resulting in incomplete resection of the lesion tissue or the expansion of the surgical scope, causing unnecessary damage to the patient.
Design a plasma knife whose blade head can change the first and second directions in the handle position through the deformation capability of the connector, so as to better align the lesion position and convey ablation water through the pipeline system and Radiofrequency energy performs removal of lesion tissue.
It effectively reduces the incomplete resection of lesions in concealed space, reduces the risk of expanding the scope of the surgery, and improves the accuracy and safety of the surgery.
Smart Images
Figure CN119235449A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of medical devices, and in particular to a plasma knife and plasma surgical equipment. Background Art
[0002] Low-temperature plasma radiofrequency ablation is often used to treat diseases such as tonsil hypertrophy, chronic tonsillitis, chronic rhinitis, allergic rhinitis, sinusitis, nasal polyps, epistaxis, ear canal tumors, otitis media and various benign and malignant tumors in the otolaryngology department.
[0003] The operation method of low-temperature plasma radiofrequency ablation is: insert the blade on the plasma surgical device into the diseased area such as the ear, nose, and throat, and emit radiofrequency energy to the diseased tissue in the diseased area through the blade to cut and ablate the diseased tissue.
[0004] However, the ear, nose and throat area has a complex structure and winding passages, resulting in many hidden spaces such as blind spots, which the blade cannot reach. As a result, the diseased tissue in the hidden space may be incompletely removed, or the scope of surgery may be expanded to remove the diseased tissue in the hidden space, causing unnecessary harm to the patient. Summary of the invention
[0005] The present invention provides a plasma knife and a plasma surgical device, which can achieve cutting and ablation of hidden spaces of lesion sites by adjusting the position of the knife head on the plasma knife before surgery without expanding the surgical scope.
[0006] In a first aspect, the plasma knife provided by the present disclosure may include: a handle, a knife head and a connecting piece, wherein the handle is provided with a first pipeline; the knife head is provided with a second pipeline and an excitation end provided at an opening at one end of the second pipeline; the connecting piece is provided with a third pipeline, the connecting piece is respectively connected to a portion of the handle corresponding to the opening at one end of the first pipeline and a portion of the knife head corresponding to the opening at the other end of the second pipeline, and the third pipeline is respectively connected to the first pipeline and the second pipeline, and the connecting piece has at least a first direction and a second direction deformation, so that the position of the knife head relative to the handle changes in the first direction and / or the second direction.
[0007] In some embodiments, the connecting member is a tube to form the third pipeline therein, and at least a partial section from the end connected to the handle to the end connected to the cutting head is provided with a folding portion, and the folding portion enables the cutting head to be extended and retracted relative to the handle, and the folding portion enables the cutting head to be bent relative to the handle.
[0008] In some embodiments, a folding width of a folding portion of the connecting member near one end of the handle is greater than a folding width of a folding portion of the connecting member near one end of the blade head.
[0009] In some embodiments, the folding width of the folding portion tends to gradually decrease from an end close to the handle to an end close to the blade head.
[0010] In some embodiments, the plasma knife may also include: a first delivery tube and a second delivery tube, the first delivery tube is arranged in the first pipeline, the third pipeline and the second pipeline, and one end opening of the first delivery tube can be opposite to the excitation end; the second delivery tube is arranged in the first pipeline, the third pipeline and the second pipeline, and one end opening of the second delivery tube can be opposite to the excitation end.
[0011] In some embodiments, the plasma knife may also include: a connecting pipe and a sealing piece, the connecting pipe is respectively connected to the side wall of the first delivery pipe and the side wall of the second delivery pipe, and is respectively connected to the interior of the first delivery pipe and the interior of the second delivery pipe; the sealing piece is arranged in the connecting pipe to separate the connecting pipe into at least two sections, and the sealing piece can be opened to connect the two sections.
[0012] In some embodiments, the plasma knife may also include: a power mechanism, which is arranged in a pipeline and connected to the first delivery pipe and the second delivery pipe, and at least a portion of the power mechanism is capable of moving to drive the first delivery pipe and the second delivery pipe to move relative to the excitation end; wherein the pipeline includes: the first pipeline, the second pipeline and the third pipeline.
[0013] In some embodiments, the plasma knife may further include: a third delivery pipe, which is arranged in the first pipeline, the third pipeline and the second pipeline, and one end of the third delivery pipe has a first branch delivery pipe and a second branch delivery pipe respectively opposite to the excitation end.
[0014] In some embodiments, the outer surface of the handle is provided with at least one of the following: a bump, a convex strip, and an elastic layer to increase the friction of the outer surface of the handle.
[0015] In a second aspect, the present disclosure provides a plasma surgical device, which may include: a plasma knife and a host as described in any embodiment of the first aspect, wherein the host is connected to the plasma knife and can supply power to an excitation end of the plasma knife so that the excitation end emits radio frequency energy.
[0016] In the plasma knife and plasma surgical equipment provided by the present disclosure, the operator can hold the handle of the plasma knife, and then apply force to the connecting piece according to the specific location of the lesion to deform the connecting piece, so that the position of the blade head relative to the handle changes in the first direction and / or the second direction, and then the blade head can be better aligned with the lesion position after entering the human body; when the blade head is aligned with the lesion position, ablative water can be delivered to the lesion position through the first pipeline, the third pipeline and the second pipeline, and radio frequency energy can be emitted to the lesion position through the excitation end to remove the lesion tissue, and ablative water from the removed lesion tissue and 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 the position of the blade head relative to the handle changes in the first direction and / or the second direction, so that the connecting piece can be deformed according to the specific location of the lesion, so as to reduce the situation of incomplete removal of lesion tissue in hidden space and reduce the probability of expanding the scope of surgery.
[0017] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 is a schematic structural diagram of a plasma knife provided in the first embodiment of the present disclosure;
[0020] Figure 2 The partial structure of the plasma knife provided by the first embodiment of the present disclosure is shown in FIG. Figure 1 ;
[0021] Figure 3 The partial structure of the plasma knife provided by the first embodiment of the present disclosure is shown in FIG. Figure 2 ;
[0022] Figure 4 is a schematic structural diagram of a plasma knife provided in the first embodiment of the present disclosure after the connecting piece is deformed;
[0023] Figure 5 It is a partial structural schematic diagram of a connecting piece of a plasma knife provided in a second embodiment of the present disclosure;
[0024] Figure 6is a partial structural schematic diagram of a connecting piece of a plasma knife provided in a third embodiment of the present disclosure;
[0025] Figure 7 is a perspective structural schematic diagram of a plasma knife provided in a fourth embodiment of the present disclosure;
[0026] Figure 8 is a schematic diagram of a partial cross-sectional structure of a plasma knife provided in a fifth embodiment of the present disclosure;
[0027] Fig. 9 is a schematic diagram of the internal structure of a plasma knife provided in a sixth embodiment of the present disclosure;
[0028] Fig.10 It is a schematic diagram of the internal structure of the plasma knife provided in the seventh embodiment of the present disclosure.
[0029] Description of reference numerals:
[0030] 10. Plasma knife; 11. Handle; 111. First pipeline; 12. Knife head; 121. Second pipeline; 122. Excitation end; 13. Connector; 131. Third pipeline; 132. Folding portion; 133. Outer covering layer; 141. First delivery pipe; 1411. Groove; 1412. Protrusion; 142. Second delivery pipe; 143. Connecting pipe; 144. Blocking piece; 145. Third delivery pipe; 1451. First branch delivery pipe; 1452. Second branch delivery pipe. DETAILED DESCRIPTION
[0031] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. 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 that fall within the scope of the claims.
[0032] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to 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 the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0033] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0034] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0035] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0036] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0038] The ear, nose and throat area has a complex structure and winding passages, which result in many hidden spaces such as blind spots. The blade cannot reach these hidden spaces, resulting in incomplete resection of the diseased tissue in the hidden spaces. Alternatively, the scope of surgery may be expanded to remove the diseased tissue in the hidden spaces, causing unnecessary harm to the patient.
[0039] One solution is to provide cutter heads of different shapes so that cutter heads of different shapes can be selected according to different concealed spaces. However, the shapes of the cutter heads are limited and still cannot adapt to different concealed spaces.
[0040] The plasma knife disclosed in the present invention comprises: a handle 11, a blade head 12 and a connecting member 13, wherein the connecting member 13 is respectively connected to the handle 11 and the blade head 12, and the connecting member 13 has at least a first direction and a second direction deformation, so that the position of the blade head 12 can change in the first direction and / or the second direction relative to the handle 11. In this way, when it is necessary to cut and ablate the hidden space of the lesion site, the operator can deform the connecting member 13 in the first direction and / or the second direction according to the depth and angle of the hidden space, so that the deformed blade head 12 can enter the hidden space for operation, thereby reducing the probability of incomplete resection of the lesion tissue in the hidden space and expanding the scope of the operation to cause unnecessary damage to the patient.
[0041] First aspect
[0042] The present disclosure provides a plasma knife 10, see Figures 1 to 10 As shown, the plasma knife 10 may include: a handle 11, a blade head 12 and a connecting piece 13, the handle 11 is provided with a first pipeline 111; the blade head 12 is provided with a second pipeline 121 and an excitation end 122 provided at an opening at one end of the second pipeline 121; the connecting piece 13 is provided with a third pipeline 131, the connecting piece 13 is respectively connected to a portion of the handle 11 corresponding to an opening at one end of the first pipeline 111 and a portion of the blade head 12 corresponding to an opening at the other end of the second pipeline 121, and the third pipeline 131 is respectively connected to the first pipeline 111 and the second pipeline 121, and the connecting piece 13 has at least a first direction and a second direction deformation, so that the position of the blade head 12 relative to the handle 11 changes in the first direction and / or the second direction.
[0043] When in use, the operator can hold Figure 1 The handle 11 of the plasma knife 10 shown in the figure is then applied to the connecting member 13 according to the specific location of the lesion, so that the connecting member 13 is Figure 4The deformation shown in the figure causes the position of the blade head 12 relative to the handle 11 to change in the first direction and / or the second direction, so that the blade head 12 can be better aligned with the lesion position after entering the human body; when the blade head 12 is aligned with the lesion position, ablative water (such as physiological saline) can be delivered to the lesion position through the first pipeline 111, the third pipeline 131 and the second pipeline 121, and radio frequency energy can be emitted to the lesion position through the excitation end 122 (such as an electrode sheet) to remove the lesion tissue, and ablative water from the removed lesion tissue and tissue 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 connector 13 to deform the connector 13, 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 the connector 13 can be deformed according to the specific position of the lesion, so as to reduce the situation of incomplete removal of lesion tissue in hidden space and reduce the probability of expanding the scope of surgery.
[0044] The inner wall or outer wall of the handle 11 at one end away from the connector 13 may be provided with a thread so as to be connected to a host capable of emitting radio frequency energy to the excitation end 122. The connection between the handle 11 and the host may also be achieved by other means, which are not specifically limited here. The outer surface of the handle 11 may be provided with at least one of the following: a convex block, a convex strip, and an elastic layer to increase the friction of the outer surface of the handle 11, thereby preventing the plasma knife 10 from sliding in the palm of the operator during operation, thereby causing trauma to non-lesioned areas.
[0045] The first pipeline 111, the third pipeline 131 and the second pipeline 121 mentioned above can be pipelines formed by the hollowness of the handle 11, the connecting piece 13 and the blade head 12, respectively, or can be pipelines formed by a delivery tube arranged inside. The first pipeline 111, the third pipeline 131 and the second pipeline 121 are connected in sequence, 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 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 at 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 to a waste bin, etc.; for example: see Figure 1As shown, the handle 11, the blade head 12 and the connector 13 are respectively hollow structures to form a first pipeline 111, a second pipeline 121 and a third pipeline 131, and both ends of the connector 13 are respectively connected to the handle 11 and the blade head 12, so that the first pipeline 111, the third pipeline 131 and the second pipeline 121 are sequentially connected. The radial dimensions of the first pipeline 111, the second pipeline 121 and the third pipeline 131 may be consistent or may not be completely consistent.
[0046] The first direction and the second direction mentioned above are different. The first direction may be the direction in which the cutting head 12 deviates from the axis of the handle 11, and the second direction may be the direction of the extension line of the axis of the handle 11 (e.g., the direction close to the handle 11 or the direction away from the handle 11 on the axis of the handle 11); or, conversely, the first direction may be the direction in which the cutting head 12 deviates from the axis of the handle 11 (e.g., the direction close to the handle 11 or the direction away from the handle 11 on the axis of the handle 11), and the second direction may be the direction in which the cutting head 12 deviates from the axis of the handle 11.
[0047] In some embodiments, see Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the connecting member 13 is a pipe to form a third pipeline 131 therein, and at least a portion of the section from one end connected to the handle 11 to one end connected to the blade head 12 is provided with a folding portion 132, and the folding portion 132 can make the blade head 12 extend and retract relative to the handle 11, and the folding portion 132 can make the blade head 12 bend relative to the handle 11. In other words, the connecting member 13 includes a plurality of sections connected in sequence from one end connected to the handle 11 to one end connected to the blade head 12, and one or more of the sections are provided with a folding portion 132, and the folding portion 132 presents as shown in FIG. Figure 5 The broken line shown in Figure 6 In the wavy shape shown in the figure, the blade head 12 can be stretched in the direction away from the handle 11, so that the length of the folding portion 132 from one end of the handle 11 to one end of the blade head 12 becomes larger; the blade head 12 can also be compressed in the direction close to the handle 11, so that the length of the folding portion 132 from one end of the handle 11 to one end of the blade head 12 becomes smaller; the blade head 12 can also be bent toward one side of the plasma knife 10; the blade head 12 can also be bent toward one side of the plasma knife 10 first, and then stretched or compressed; it can also be a combination of at least two of stretching, compression and bending.
[0048] In this embodiment, the connecting member 13 is tubular so that a third pipeline 131 can be formed therein, and the folding portion 132 provided on the connecting member 13 can realize the extension and / or bending of the blade 12 relative to the handle 11 through manual force applied by an operator, so that the connecting member 13 can be conveniently deformed according to the specific position of the hidden space. At the same time, the folding portion 132 can be set to deform in the opposite direction to obtain the required deformation amount after excessive deformation occurs.
[0049] In some embodiments, in order to reduce the friction between the folding portion 132 and the human body after entering the human body, thereby reducing the discomfort caused to the patient, any position of the outer surface of the folding portion 132 is smooth, or the connecting member 13 may also include: an outer coating layer 133, the outer coating layer 133 is a circle of the outer side of the connecting member 13, and the folding portion 132 is arranged inside the outer coating layer 133, and the outer coating layer 133 can be a layer structure such as a film, a smooth deformable rubber tube, and the layer structure can return to its original shape after deformation. For example: See Figure 1 and Figure 2 As shown, the outer covering layer 133 is a smooth deformable rubber tube, which can be deformed along with the deformation of the folding portion 132. After the folding portion 132 is deformed, it can support the outer covering layer 133 to maintain the deformed posture. When the folding portion 132 is deformed excessively to move in the reverse direction, the outer covering layer 133 can also move in the reverse direction along with the folding portion 132, thereby reducing the disposal cost caused by the inability to continue to use due to the inability to move in the reverse direction.
[0050] In some embodiments, see Figure 5 As shown, the folding width d of the folding portion 132 at one end of the connecting member 13 close to the handle 11 is greater than the folding width d of the folding portion 132 at one end of the connecting member 13 close to the blade head 12. In this way, the expansion and contraction amount and bending amount of the folding portion 132 close to the blade head 12 are less than the expansion and contraction amount and bending amount of the folding portion 132 close to the handle 11. In this way, the end of the folding portion 132 close to the handle 11 can be bent at a large angle to roughly determine the position of the blade head 12, and then the end of the folding portion 132 close to the blade head 12 can be bent at a micro-distance, so that the blade head 12 can correspond to the diseased tissue more accurately.
[0051] In some embodiments, see Figure 5 As shown, the folding width of the folding portion 132 gradually decreases from the end close to the handle 11 to the end close to the blade head 12. In this way, not only can the end of the folding portion 132 close to the handle 11 be bent at a large angle to roughly determine the position of the blade head 12, and then the end of the folding portion 132 close to the blade head 12 be bent at a micro distance so that the blade head 12 can correspond to the diseased tissue more accurately, but also the gradually decreasing trend makes the appearance of the folding portion 132 have a gradually shrinking visual beauty.
[0052] In some embodiments, see Figure 7 As shown, the plasma knife 10 may also include: a first delivery pipe 141 and a second delivery pipe 142, the first delivery pipe 141 is arranged in the first pipeline 111, the third pipeline 131 and the second pipeline 121, and one end opening of the first delivery pipe 141 can be opposite to the excitation end 122; the second delivery pipe 142 is arranged in the first pipeline 111, the third pipeline 131 and the second pipeline 121, and one end opening of the second delivery pipe 142 can be opposite to the excitation end 122.
[0053] That is to say, the first delivery tube 141 extends from the first pipeline 111 of the handle 11 through the third pipeline 131 of the connector 13 to the second pipeline 121 of the blade head 12, and the second delivery tube 142 also extends from the first pipeline 111 of the handle 11 through the third pipeline 131 of the connector 13 to the second pipeline 121 of the blade head 12, and one end opening of the first delivery tube 141 and one end opening of the second delivery tube 142 are both opposite to the excitation end 122, so that the first delivery tube 141 can be used as a delivery tube for delivering ablative water to the diseased tissue. The second delivery tube 142 can be used as a suction tube to attract the diseased tissue cut by the excitation end 122 and the ablation water at the diseased tissue; or, the first delivery tube 141 can be used as a suction tube to attract the diseased tissue cut by the excitation end 122 and the ablation water at the diseased tissue, and the second delivery tube 142 can be used as an injection tube to deliver ablation water to the diseased tissue; further, during use, the first delivery tube 141 and the second delivery tube 142 can be switched with each other to complete water injection and suction respectively.
[0054] For example, the first delivery tube 141 can be used as a water injection tube for delivering ablative water to the diseased tissue, and the second delivery tube 142 can be used as a suction tube to attract the diseased tissue cut by the excitation end 122 and the ablative water at the diseased tissue. When the second delivery tube 142 is in the process of attracting the diseased tissue, the diseased tissue enters the second delivery tube 142 and blocks the second delivery tube 142, so that the suction process cannot be continued. At this time, it can be switched to inject water into the diseased tissue through the second delivery tube 142 so that the blocked diseased tissue is washed to the diseased tissue position by the water flow, and then the diseased tissue can be cut again by the excitation end 122 to be sucked by the first delivery tube 141. Here, the diameter of the first delivery tube 141 can be larger than the diameter of the second delivery tube 142, so that after the diseased tissue is rushed to the diseased position, it 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 force of the inner wall of the groove 1411 is greater than the friction force 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 diseased tissue, with the existence of the suction force of the delivery tube and the friction force of the inner wall of the groove 1411 (e.g., the inner wall of the groove 1411 has a plurality of convex portions 1412 arrayed to have a large friction force) being greater than the friction force of the inner tube wall of the delivery tube at a position other than the groove 1411 (e.g., a smooth inner tube wall), the diseased tissue is easy to slide into the groove 1411 and stay in the groove 1411, so as to reduce the impact of the delivery tube being completely blocked and unable to continue to attract.
[0056] In some embodiments, see Fig. 9 As shown, the plasma knife 10 may further include: a connecting tube 143 and a blocking piece 144, wherein the connecting tube 143 is respectively connected to the side wall of the first delivery tube 141 and the side wall of the second delivery tube 142, and is respectively connected to the inside of the first delivery tube 141 and the inside of the second delivery tube 142; the blocking piece 144 is arranged in the connecting tube 143 to separate the connecting tube 143 into at least two sections, and the blocking piece 144 can be opened to connect the two sections. In other words, the first delivery tube 141 and the second delivery tube 142 are connected through the connecting tube 143, and the blocking piece 144 located in the connecting tube 143 can make the first delivery tube 141 and the second delivery tube 142 connected through the connecting tube 143, and can also make the first delivery tube 141 and the second delivery tube 142 disconnected through the blocking piece 144 in the connecting tube 143.
[0057] When the first delivery tube 141 is used as an injection tube and the second delivery tube 142 is used as a suction tube, and the second delivery tube 142 is blocked by diseased tissue, different operations can be performed according to the location of the blocked diseased tissue; when the diseased tissue is located between the connecting tube 143 and the excitation end 122 corresponding to the second delivery tube 142, the suction of the second delivery tube 142 can be stopped, and water can be injected through the first delivery tube 141 (the injection pressure is greater than the pressure when delivering ablation water) to connect the connecting tube 143 to the first delivery tube 141 and the second delivery tube 142, so that the injected water flows to the blocked diseased tissue through the connecting tube 143 and pushes the blocked diseased tissue back into the human body again, and then it can Stop injecting water to disconnect the connecting tube 143 through the blocking piece 144 again, and cut the diseased tissue that has returned to the human body again through the excitation end 122 and continue to attract it through the second delivery tube 142; when the lesion component is located on the side of the connecting tube 143 in the second delivery tube 142 away from the excitation end 122, a suction force greater than that of the diseased tissue cut from the diseased tissue by the second delivery tube 142 can be provided to the first delivery tube 141, so that the connecting tube 143 connects the first delivery tube 141 and the second delivery tube 142, thereby allowing the first delivery tube 141 and the connecting tube 143 to form a new suction tube to attract the cut diseased tissue and the ablation water at the diseased tissue.
[0058] The plugging member 144 may be a sheet structure of elastic material such as rubber or silicone, and the plugging member 144 is provided with cutting lines, ant lines and other positions that can be easily opened; when the first delivery tube 141 delivers ablative water, the cutting lines and ant lines of the plugging member 144 are not opened to seal the connecting tube 143. When the injection pressure delivered by the first delivery tube 141 to the excitation end 122 is greater than the pressure of the delivered ablative water, the elasticity of the plugging member 144 causes the plugging member 144 to bulge along the flow direction of the injected water to open the cutting lines and ant lines, thereby opening the connecting tube 143. The two ends of the tube 143 are connected to the first delivery tube 141 and the second delivery tube 142; when the water injection stops, the blocking piece 144 returns to its original state; when the suction of the first delivery tube 141 is greater than the suction of the second delivery tube 142 when attracting the diseased tissue cut from the diseased tissue, the elasticity of the blocking piece 144 makes the blocking piece 144 bulge in the direction of the suction to open the cutting line and the ant line, thereby opening the two ends of the connecting tube 143 to connect the first delivery tube 141 and the second delivery tube 142; when the suction disappears, the blocking piece 144 returns to its original state.
[0059] In some embodiments, the plasma knife 10 may further include: a power mechanism, which is disposed in the pipeline and connected to the first delivery tube 141 and the second delivery tube 142, and at least part of the power mechanism can move to drive the first delivery tube 141 and the second delivery tube 142 to move relative to the excitation end 122; wherein the pipeline includes: a first pipeline 111, a second pipeline 121 and a third pipeline 131. In this way, the first delivery tube 141 and the second delivery tube 142 can be moved by the power mechanism so that the first delivery tube 141 is opposite to the excitation end 122 or the second delivery tube 142 is opposite to the excitation end 122, so that the injected ablative water can quickly and more smoothly reach the diseased tissue in the human body, and the cut diseased tissue or the ablative water at the diseased tissue position can also be quickly and smoothly sucked out.
[0060] Here, the power mechanism may be a push block inserted into the plasma knife 10, the part of the push block located in the plasma knife 10 clamps the first delivery pipe 141 and the second delivery pipe 142, or the part of the push block located in the plasma knife 10 is bonded and connected to the first delivery pipe 141 and the second delivery pipe 142, or the part of the push block located in the plasma knife 10 is connected to 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 on the outside of the plasma knife 10.
[0061] In some embodiments, see Fig.10 As shown, the plasma knife 10 may also include: a third delivery tube 145, which is arranged in the first pipeline 111, the third pipeline 131 and the second pipeline 121, and the end of the third delivery tube 145 corresponding to the excitation end 122 has a first branch delivery tube 1451 and a second branch delivery tube 1452 respectively opposite to the excitation end 122. In this way, the third delivery tube 145 can be used as a pipeline for delivering ablative water, and can also be used as a pipeline for attracting the cut diseased tissue and the ablative water at the diseased tissue. The operator can tilt the plasma knife 10 so that the first branch delivery tube 1451 is opposite to the diseased tissue position of the human body or the second branch delivery tube 1452 is opposite to the diseased tissue position of the human body, so as to quickly deliver ablative water or absorb the cut diseased tissue.
[0062] In one example, see Figures 1 to 4 As shown, the plasma knife 10 may include:
[0063] A handle 11, wherein the handle 11 is hollow to form a first pipeline 111;
[0064] The cutter head 12 is hollow to form a second pipeline 121, and one end of the cutter head 12 is provided with an excitation end 122 corresponding to an opening at one end of the second pipeline 121;
[0065] The connector 13 is connected to the opening of the first pipeline 111 of the handle 11 and the opening of the second pipeline 121 of the blade head 12. The connector 13 includes a folding portion 132 and an outer coating layer 133. The third pipeline 131 in the folding portion 132 is connected to the first pipeline 111 and the second pipeline 121 respectively. The outer coating layer 133 is wrapped around the outer surface of the folding portion 132 and is flush with the outer surface of the handle 11 and the outer surface of the blade head 12. The folding portion 132 can realize the extension (e.g., deformation in the first direction) and / or bending (e.g., deformation in the second direction) of the blade head 12 relative to the handle 11 by manual force applied by the operator, so that the connector 13 has at least the first direction and the second direction deformation, so that the position of the blade head 12 relative to the handle 11 can change in the first direction and / or the second direction. Thus, the connector 13 can be deformed according to the specific location of the lesion, so as to reduce the incomplete removal of the lesion tissue in the hidden space and the chance of expanding the scope of surgery. At the same time, the outer coating 133 can reduce the friction between the blade head 12 and the human body, making the patient more comfortable.
[0066] Second aspect
[0067] The present disclosure provides a plasma surgical device, which may include: a plasma knife 10 of any embodiment in the first aspect and a host, the host is connected to the plasma knife 10 and can supply power to the excitation end 122 of the plasma knife 10 so that the excitation end 122 emits radio frequency energy.
[0068] Specifically, the handle 11 enables medical personnel to grasp the handle 11 to move the plasma knife 10. The host can power the excitation end 122 of the plasma knife 10 so that the excitation end 122 can emit radio frequency energy, and the radio frequency energy can cut the diseased tissue.
[0069] It should be noted that the plasma knife in the plasma surgical device provided by the present disclosure is similar to the description of the plasma knife embodiment described above, and has similar beneficial effects as the plasma knife embodiment described above. For technical details not disclosed in the plasma surgical device embodiment of the present disclosure, please refer to the description of the plasma knife embodiment of the present disclosure for understanding, and no further description will be given here.
[0070] So far, various 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. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0071] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A plasma knife, characterized in that: include: A handle provided with a first pipeline; The cutter head is provided with a second pipeline and an exciting end provided at an opening at one end of the second pipeline; A connecting piece is provided with a third pipeline, and the connecting piece is respectively connected to a portion of the handle corresponding to an opening at one end of the first pipeline and a portion of the cutter head corresponding to an opening at the other end of the second pipeline, and the third pipeline is respectively connected to the first pipeline and the second pipeline, and the connecting piece has at least a first direction and a second direction. The deformation allows the position of the cutter head relative to the handle to change in the first direction and / or the second direction.
2. The plasma knife according to claim 1, characterized in that: The connecting member is a pipe to form the third pipeline therein, and at least a partial section from the end connected to the handle to the end connected to the blade head is provided with a folding portion, the folding portion enables the blade head to be extended and retracted relative to the handle, and the folding portion enables the blade head to be bent relative to the handle.
3. The plasma knife according to claim 2, characterized in that: The folding width of the folding portion of the connecting member close to one end of the handle is greater than the folding width of the folding portion of the connecting member close to one end of the blade head.
4. The plasma knife according to claim 3, characterized in that: The folding width of the folding portion decreases gradually from an end close to the handle to an end close to the blade head.
5. The plasma knife according to claim 1, characterized in that: Also includes: A first delivery pipe is arranged in the first pipeline, the third pipeline and the second pipeline, and an opening at one end of the first delivery pipe can be opposite to the excitation end; The second delivery tube is arranged in the first pipeline, the third pipeline and the second pipeline, and an opening of one end of the second delivery tube can be opposite to the excitation end.
6. The plasma knife according to claim 5, characterized in that: Also includes: A connecting pipe, connected to the side wall of the first delivery pipe and the side wall of the second delivery pipe respectively, and communicated with the interior of the first delivery pipe and the interior of the second delivery pipe respectively; The blocking piece is arranged in the connecting pipe to separate the connecting pipe into at least two sections, and the blocking piece can be opened to connect the two sections.
7. The plasma knife according to claim 5 or 6, characterized in that: Also includes: A power mechanism is disposed in the pipeline and connected to the first delivery pipe and the second delivery pipe, and at least a portion of the power mechanism is movable to drive the first delivery pipe and the second delivery pipe to move relative to the excitation end; Wherein, the pipeline includes: the first pipeline, the second pipeline and the third pipeline.
8. The plasma knife according to claim 1, characterized in that: Also includes: The third delivery pipe is arranged in the first pipeline, the third pipeline and the second pipeline, and one end of the third delivery pipe has a first branch delivery pipe and a second branch delivery pipe respectively opposite to the excitation end.
9. The plasma knife according to claim 1, characterized in that: The outer surface of the handle is provided with at least one of the following: a convex block, a convex strip, and an elastic layer to increase the friction force of the outer surface of the handle.
10. A plasma surgical device, characterized in that: include: The plasma knife according to any one of claims 1 to 9; The host is connected to the plasma knife and can supply power to the exciting end of the plasma knife so that the exciting end emits radio frequency energy.