CN117731386A - Inner cutter head assembly, inner cutter assembly and plane cutter - Google Patents
Inner cutter head assembly, inner cutter assembly and plane cutter Download PDFInfo
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- CN117731386A CN117731386A CN202410176520.1A CN202410176520A CN117731386A CN 117731386 A CN117731386 A CN 117731386A CN 202410176520 A CN202410176520 A CN 202410176520A CN 117731386 A CN117731386 A CN 117731386A
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- inner cutter
- assembly
- tube
- planing
- cutter head
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- 238000009297 electrocoagulation Methods 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 23
- 235000014676 Phragmites communis Nutrition 0.000 claims description 13
- 239000012212 insulator Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000023597 hemostasis Effects 0.000 abstract description 42
- 238000005520 cutting process Methods 0.000 abstract description 13
- 230000000740 bleeding effect Effects 0.000 abstract description 8
- 230000000737 periodic effect Effects 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 112
- 230000015271 coagulation Effects 0.000 description 27
- 238000005345 coagulation Methods 0.000 description 27
- 206010052428 Wound Diseases 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 239000002504 physiological saline solution Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 230000002439 hemostatic effect Effects 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 208000031737 Tissue Adhesions Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
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- 229910010293 ceramic material Inorganic materials 0.000 description 1
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- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 210000003695 paranasal sinus Anatomy 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The invention relates to an inner cutter head assembly, an inner cutter assembly and a plane cutter, and belongs to the technical field of medical instruments. The planing tool comprises a handle assembly, an outer tool assembly and an inner tool assembly, wherein the inner tool assembly comprises an inner tool pipe and an inner tool bit assembly, and the inner tool bit is arranged at the front end of the inner tool pipe. The inner cutter head assembly comprises an inner cutter head and an electrode head; the inner cutter head is provided with a planing side and an electrocoagulation side, and the planing side is provided with planing teeth; the electrode head is positioned in the inner cutter head and exposed from the electrocoagulation side; the inner cutter head and the electrode head form an electrocoagulation bipolar. The inner cutter head assembly, the inner cutter assembly and the planing tool can simultaneously realize planing and hemostasis, avoid the situation that the tissue bleeding in the planing operation needs to be replaced for hemostasis, shorten the operation time and improve the operation efficiency; and the inner cutter head can realize continuous periodic work of cutting and hemostasis. In addition, because the inner cutter head is in a continuous rotation state, human tissues adhered on the electrocoagulation side can be scraped off by the outer cutter head, so that the stability of continuous work is ensured.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an inner cutter head assembly, an inner cutter assembly and a planing tool.
Background
The planing operation is widely applied to the treatment of the pathological tissues of the nasal sinuses, the throat and the joints. The core instrument used in the planing operation is a planing tool, the planing tool has high cutting speed and high efficiency, but the bleeding amount of tissues in the cutting process is large, hemostatic instruments such as hemostatic forceps and the like can be adopted in the hemostatic process, and the operation time is greatly delayed by repeatedly replacing the instruments. The existing planing tool bit can only plane tissues generally and cannot provide the functions of electric coagulation and hemostasis. The technical proposal of a few patents related to the electric coagulation hemostasis planing is that a layer of conductive sleeve is added outside a planing tool, and an electric coagulation bipolar is formed by the conductive sleeve and an inner tool or an outer tool of the planing tool, so as to perform electric coagulation hemostasis. Although the coagulation effect of the cutter head is increased, the external size of the planer tool is increased, so that the planer tool is difficult to enter into narrow areas such as nasal cavities to work, and the functionality is greatly lost. In addition, the prior art adopts the technical proposal that a layer of conductive sleeve is added outside the planer tool, human tissues and blood are denatured after the electric coagulation, the human tissues and the blood can be adhered to the electric coagulation double electrodes, and the electric coagulation double electrodes are accumulated more and thicker, so that the operation visual field can be influenced, the electric coagulation double electrodes can be further wrapped by the denatured tissues, and the function of electric coagulation hemostasis is lost; and the deformed tissue is wrapped on the electrocoagulation double electrode, so that the contact distance between the planing tool bit and human tissue is increased, the planing tool bit cannot act on the human tissue, and the planing function is lost.
Disclosure of Invention
In view of the above, the present invention aims to provide an inner cutter head assembly, an inner cutter assembly and a planer tool, which can realize planing and hemostasis without increasing the external dimension of the planer tool, thereby avoiding the occurrence of the condition that the tissue bleeding needs to be replaced for hemostasis in the planing operation, shortening the operation time and improving the operation efficiency; in addition, the inner cutter head continuously rotates, so that the cutting and hemostasis are continuously and periodically performed, and one-time electrocoagulation hemostasis is performed after one cutting is finished, so that the newly cut wound can be effectively closed for hemostasis, and the efficiency is higher. In addition, because the inner cutter head is in a continuous rotation state, human tissues adhered on the electrocoagulation side can be scraped off by the outer cutter head, so that the stability of continuous work is ensured.
The technical scheme of the invention is as follows:
in a first aspect, the present invention provides an inner cutter head assembly for a planing tool, comprising an inner cutter head and an electrode head; the inner cutter head is provided with a planing side and an electrocoagulation side, and the planing side is provided with planing teeth; the electrode head is positioned in the inner cutter head and exposed from the electrocoagulation side; the inner cutter head and the electrode head form an electrocoagulation bipolar.
Alternatively, the planing side and the electrocoagulation side are disposed on opposite sides of the inner cutter head.
Alternatively, the electrode head is lower than the outer surface of the electrocoagulation side.
Alternatively, the electrode head and the inner cutter head are insulated by an insulating piece.
Alternatively, the electric coagulation side is provided with an electric coagulation through hole, and the insulating piece is in a ladder shape and is partially embedded in the electric coagulation through hole.
As an alternative scheme, the insulating piece includes insulating seat and insulating lid, the insulating seat is provided with the shoulder hole and the rear end by insulating lid seals, the electrode tip is echelonment and inlays to be located in the shoulder hole.
As an alternative, the insulation seat is provided with an embedded groove, the insulation cover is embedded in the embedded groove, and the insulation seat and/or the insulation cover are/is provided with a threading through hole.
As an alternative, the insulating member further includes a pressing plate welded to the inner side of the inner cutter and used for limiting the insulating cover.
Alternatively, the insulator is made of ceramic.
Alternatively, the electrocoagulation side is provided with a water flow passage extending from the rear end of the inner cutter head to the electrode head.
In a second aspect, the present invention provides an inner cutter assembly, including an inner cutter tube and the inner cutter head assembly described above, where the inner cutter head is disposed at the front end of the inner cutter tube.
As an alternative scheme, the outer knife assembly comprises an outer knife tube, the inner knife assembly further comprises a reed pipe and a first wire, the reed pipe is arranged in the inner knife tube in a penetrating mode, and the first wire is arranged in the reed pipe in a penetrating mode and is electrically connected with the electrode head.
As an alternative scheme, the front end and the rear end inner side of the inner cutter tube are both provided with guide blocks, the guide blocks are provided with guide through holes, and the two ends of the reed tube are respectively arranged in the guide through holes in a penetrating mode.
Alternatively, the inner cutter assembly further comprises a second wire electrically connected to the inner cutter head.
Alternatively, the second wire is electrically connected to the inner cutter head through the inner cutter tube.
In a third aspect, the present invention provides a planer tool, including a handle assembly, an outer cutter assembly and the inner cutter assembly, wherein the inner cutter assembly is inserted into the outer cutter assembly, and the outer cutter assembly and the inner cutter assembly are supported by the handle assembly.
As an alternative scheme, the outer knife assembly comprises an outer knife tube, a water injection channel is formed between the outer knife tube and the inner knife tube and is connected with a water injection tube, and the inner knife tube is communicated with a suction head.
Alternatively, the outer cutter assembly further comprises an outer cutter head, and the inner cutter head is rotatably disposed in the outer cutter head.
Alternatively, the handle assembly comprises an adapter, the adapter is adjacent to the rear end of the outer cutter tube, and the water injection tube is communicated with the water injection channel through the adapter.
As an alternative scheme, the handle assembly further comprises a connecting cylinder, the connecting cylinder is connected with the outer cutter tube, the connecting cylinder is connected with the inner cutter tube through a first bearing, and the connecting cylinder is sealed with the inner cutter tube through a sealing ring.
Alternatively, the handle assembly comprises a conductive sleeve and a conductive torch, wherein the conductive torch is connected with the rear end of the inner cutter tube and is electrically connected with the electrode head, and the conductive sleeve is electrically connected with the conductive cylinder through a second bearing or a slip ring.
As an alternative scheme, the handle assembly further comprises an insulating sleeve and an insulating inner cylinder, wherein the insulating sleeve is positioned at the rear end of the inner cutter tube and forms an insulating cavity for accommodating the conductive cylinder, and the conductive cylinder is connected with the inner cutter tube through the insulating inner cylinder.
Alternatively, the handle comprises an assembly further comprising a housing, the housing being separable from the two half-shells.
Alternatively, the planing tool further comprises a power assembly, wherein the power assembly comprises a power motor, and the power motor is matched with the inner cutter tube through gear transmission.
The beneficial effects of the invention are as follows:
according to the inner cutter head assembly, the inner cutter assembly and the planing tool, the electrode tip is arranged in the inner cutter head, the electrode tip and the inner cutter head form the electric coagulation bipolar, so that the planing and hemostasis functions can be realized on the premise of not increasing the external size of the planing tool, the situation that the bleeding of tissues needs to be replaced for hemostasis in the planing operation is avoided, the operation time is shortened, and the operation efficiency is improved; meanwhile, the electric coagulation bipolar electrode is arranged on the inner cutter head, so that the acting distance of an electric field between the working electrode and the loop electrode is shortened, the electric coagulation precision can be improved, and the positive electrode and the negative electrode are basically positioned on the same straight line, so that the hemostatic region is more regular compared with the prior art; in addition, the inner cutter head continuously rotates, so that the cutting and hemostasis are continuously and periodically performed, and one-time electrocoagulation hemostasis is performed after one cutting is finished, so that the newly cut wound can be effectively closed for hemostasis, and the efficiency is higher. In addition, because the inner cutter head is in a continuous rotation state, human tissues adhered on the electrocoagulation side can be scraped off by the outer cutter head, so that the stability of continuous work is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the several views of the drawings. The drawings are not intended to be drawn to scale, with emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic view of a planing tool according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a planing tool according to an embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of a front end of a planing tool according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 2;
FIG. 5 is a schematic view of the other state of FIG. 4;
FIG. 6 is a schematic view of an inner cutter head assembly of an inner cutter assembly of a planing tool according to an embodiment of the present invention;
FIG. 7 is a partial schematic view of the structure of FIG. 6;
FIG. 8 is a schematic view of the front end portion of the inner cutter assembly of the planing tool according to the embodiment of the present invention;
FIG. 9 is a cross-sectional view of FIG. 8;
FIG. 10 is a cross-sectional view A-A of FIG. 4;
FIG. 11 is a schematic view of a partial structure (with a casing removed) of a planing tool according to an embodiment of the present invention;
FIG. 12 is an enlarged schematic view of portion B of FIG. 2;
fig. 13 is an enlarged schematic view of part C of fig. 2.
Icon: 10-planing tool; 11-an outer cutter assembly; 12-an inner cutter assembly; 14-a handle assembly; 110-an outer cutter tube; 111-outer cutter heads; 112-a water injection pipe; 120-inner cutter tube; 121-a reed pipe; 122-a first wire; 123-guide blocks; 124-a second wire; 125-a third wire; 126-sucking head; 127-transition tube; 130-an inner cutter assembly; 131-inner cutter head; 132—planing side; 133-electrocoagulation side; 134-planing teeth; 135-water flow passage; 136-electrode heads; 137-insulating base; 138-an insulating cover; 139-pressing plate; 140-a housing; 141-control keys; 150-positioning seats; 151-adapter; 152-connecting cylinder; 153-first bearing; 154-a sealing ring; 155-insulating support; 156-circuit board; 157-a switch; 160-conductive sleeve; 161-conductive torch; 162-a second bearing; 163-insulating inner cylinder; 164-insulating front sleeve; 165-insulating rear cover; 170-a power assembly; 171-a power motor; 172-a drive gear; 173-a driven gear; 174-transition gear; 175-third bearing.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, an embodiment of the present invention provides a planing tool 10, where the planing tool 10 is mainly used for planing pathological tissues such as sinuses, throats, joints and the like, and simultaneously can perform electrocoagulation hemostasis on the planing parts to prevent tissue adhesion.
The planer tool 10 is mainly composed of an outer cutter assembly 11, an inner cutter assembly 12 and a handle assembly 14, wherein the inner cutter assembly 12 is penetrated in the outer cutter assembly 11, the outer cutter assembly 11 and the inner cutter assembly 12 are supported on the handle assembly 14, and it should be noted that the inner cutter assembly 12 can be manufactured, sold, used independently of the outer cutter assembly 11 and the handle assembly 14, and the like, and the details of the components of the planer tool 10 are discussed below.
First, in the present embodiment, "front" and "rear" are defined by the distance from the focal site, and the position near the focal site is "front" and the position far from the focal site is "rear".
The outer cutter assembly 11 is not limited in structure, and referring to the prior art, please refer to fig. 3-5, the outer cutter assembly 11 is mainly composed of an outer cutter tube 110 and an outer cutter head 111. The outer cutter tube 110 may be tubular, such as a circular tube, a flat tube, etc., and has a hollow interior, and the outer cutter head 111 is disposed at the front end of the outer cutter tube 110, and the connection manner between the two is not limited, for example, the two may be welded, integrally formed, detachably connected, etc. The inside of the outer cutter head 111 is hollow, and the rear end of the outer cutter head 111 is communicated with the outer cutter tube 110, one side of the outer cutter head 111 is provided with a planing window, the inner side and the outer side of the outer cutter head 111 are communicated through the planing window, saw-tooth cutting edges and the like can be arranged around the planing window, and of course, the periphery of the planing window is a smooth surface or other forms can also be used.
Referring to fig. 3-5, the inner cutter assembly 12 mainly comprises an inner cutter tube 120 and an inner cutter head assembly 130, wherein the inner cutter head 131 is disposed at the front end of the inner cutter tube 120, and the connection manner between the inner cutter tube and the inner cutter head assembly is not limited, for example, the inner cutter head assembly and the inner cutter head assembly can be welded, integrally formed, detachably connected, etc. It should be noted that the inner cutter assembly 130 may be manufactured, sold, used, etc. independently of the inner cutter tube 120.
The inner cutter tube 120 is in a circular tube shape, the inner cutter tube 120 is positioned in the outer cutter tube 110, the inner cutter head assembly 130 is positioned in the outer cutter head 111, the inner cutter tube 120 and the inner cutter head 131 are hollow, the rear end of the inner cutter head 131 is communicated with the inner cutter tube 120, and the inner cutter tube 120 can rotate around the central line of the inner cutter tube 120 relative to the outer cutter tube 110, so that the inner cutter head 131 is driven to rotate.
The outer diameter of the inner cutter tube 120 is smaller than the inner diameter of the outer cutter tube 110, a water injection channel is formed between the outer cutter tube 110 and the inner cutter tube 120, the water injection channel is connected with a water injection tube 112, the water injection device can inject physiological saline through the water injection tube 112, and the physiological saline reaches between the inner cutter head 131 and the outer cutter head 111 through the water injection channel and flows to focus tissues. The inner cutter tube 120 is communicated with a suction head 126, and the negative pressure adsorption equipment can suck redundant normal saline, cut waste tissues and the like out of the inner cutter tube 120 through the suction head 126, so that the cleanness and the clear view of a focus part are maintained.
When the inner cutter head assembly 130 rotates in the outer cutter head 111, the focal tissue at the planing window can be planed, meanwhile, the planed tissue can be electrically coagulated to stop bleeding, and the specific structure of the inner cutter head assembly 130 is as follows: referring to fig. 3-7, the inner cutter assembly 130 mainly includes an inner cutter 131 and an electrode tip 136, and the electrode tip 136 is disposed on the inner cutter 131.
Wherein the shape and structure of the inner cutter 131 can be referred to in the prior art, the inner cutter 131 is located inside the outer cutter 111, and the inner cutter 131 has a shaved side 132 and an electrocoagulation side 133. Wherein, the planing side 132 is provided with planing teeth 134, the mode of the planing teeth 134 is not limited, and the planing teeth can be in a sawtooth shape and the like; the electrode tip 136 is positioned within the inner cutting head 131, with one side of the electrode tip 136 exposed from the electrocoagulation side 133. The electrocoagulation side 133 is used for performing electrocoagulation hemostasis, the inner cutter head 131 and the electrode tip 136 are made of conductive materials such as metal, the inner cutter head 131 and the electrode tip 136 form an electrocoagulation bipolar (under a high-frequency alternating electric field, the inner cutter head 131 and the electrode tip 136 always switch positive and negative poles), namely, the inner cutter head 131 is used as a radio-frequency positive pole and the electrode tip 136 is used as a radio-frequency negative pole, or the electrode tip 136 is used as a radio-frequency positive pole and the inner cutter head 131 is used as a radio-frequency negative pole, and polarities of the inner cutter head 131 and the electrode tip 136 are in a mutually alternating state during electrocoagulation.
The inner cutter head 131 and the electrode tip 136 are respectively electrically connected with an external radio-frequency host, and when the electric power is on, an electric field can be formed between the inner cutter head 131 and the electrode tip 136 to perform electrocoagulation hemostasis on a wound, and the principle of the electrocoagulation hemostasis can refer to the prior art and is not repeated herein.
Because the electric coagulation dipoles are arranged on the inner cutter head 131, the sizes of the inner cutter head 131, the inner cutter tube 120, the outer cutter head 111 and the outer cutter tube 110 are not increased, and the planer tool 10 is beneficial to being inserted into a narrow space for operation. In addition, in the electrocoagulation hemostasis process, along with human tissue and blood denaturation, the electrode tip 136 and the electrocoagulation side 133 of the inner cutter head 131 are adhered, but because the inner cutter head 131 is in a continuous rotation state, when the electrocoagulation side 133 passes through the cutting edge of the outer cutter head 111, the cutting edge of the outer cutter head 111 can scrape away the adhered human tissue and the like, so that the electrode tip 136 and the electrocoagulation side 133 are ensured to be clean, and the stability of the planer tool 10 in continuous operation is ensured. Compared with the scheme that the electrode head 136 and the outer cutter head 111 are used as the electric coagulation bipolar electrodes or the inner cutter head 131 and the outer cutter head 111 are used as the electric coagulation bipolar electrodes in the prior art, the tissue adhesion can be effectively prevented.
The relative positions of the planing side 132 and the electrocoagulation side 133 are not limited, for example, the planing side 132 and the electrocoagulation side 133 are disposed on adjacent sides of the inner cutter head 131. In this embodiment, the planing side 132 and the electrocoagulation side 133 are disposed on opposite sides of the inner cutter head 131. The planing side 132 and the electrocoagulation side 133 can alternately emerge from the planing window of the outer cutter head 111 as the inner cutter head 131 rotates within the outer cutter head 111: when the planing side 132 is opposite to the planing window, the planing teeth 134 of the inner cutter 131 can plane the lesion assembly at the planing window, and at this time, the electrocoagulation side 133 is located inside the outer cutter 111, and electrocoagulation hemostasis may not be performed; when the electrocoagulation side 133 is opposite the planing window, the electric field formed between the inner cutter 131 and the electrode tip 136 is capable of electrocoagulating the wound, and the planing teeth 134 are located inside the outer cutter 111 and cannot be planed. Because the inner cutter head assembly 130 is continuously rotated, planing-hemostasis operations can be alternately performed, that is, if planing is completed sequentially, sequential electrocoagulation hemostasis can be performed sequentially, and sealing hemostasis can be effectively performed on newly cut wounds, so that the hemostasis efficiency is higher.
It should be noted that the planing tool 10 may be used for planing alone, electro-coagulation hemostasis alone, and planing and hemostasis at the same time: when the planing tool 10 is used for planing alone, the inner tool bit 131 and the electrode tip 136 are only required to be not electrified; when the planer tool 10 is used for singly performing electrocoagulation hemostasis, the electrocoagulation side 133 is only required to be always opposite to the planing window of the outer cutter head 111, at this time, the inner cutter tube 120 and the inner cutter head 131 can not rotate, however, in some embodiments, the inner cutter head 131 can also rotate, and at this time, a certain distance between the inner cutter head 131 and the wound needs to be ensured; when the planing tool 10 performs planing and hemostasis, the inner cutter tube 120 and the inner cutter 131 are rotated in the outer cutter tube 110 and the outer cutter 111, and the inner cutter 131 and the electrode tip 136 are electrified. The different states do not need to change operation gestures, planing and electrocoagulation hemostasis functions are integrated on one working point, and the operation is simple and convenient. In addition, the planing tool 10 has multiple purposes, can avoid the situation that the tissue bleeding needs to be replaced frequently and the instrument is replaced in the planing operation, shortens the operation time and improves the operation efficiency.
The exposed portion of the electrode tip 136 from the electrocoagulation side 133 may correspond to the exact center of the shaved side 132, i.e., the two poles of the electrocoagulation hemostasis are directly opposite the exact center of the shaved wound, with hemostasis being performed at the wound center point with best results.
In this embodiment, the electrode tip 136 is lower than the outer surface of the electrocoagulation side 133, and the electrode tip 136 has an insulation distance from the inner surface of the outer cutter 111 all the time during rotation of the inner cutter 131, preventing short circuit. In addition, an insulating coating may be disposed on the inner surface of the outer cutter 111 to further ensure that the electrode tip 136 and the outer cutter 111 are not shorted. In some other embodiments, it is also possible that the electrode tip 136 is flush with the outer surface of the electrocoagulation side 133, or that the electrode tip 136 is higher than the outer surface of the electrocoagulation side 133.
The size of the electrode tip 136 can be set according to the requirement, the electrode tip 136 and the inner cutter 131 are insulated by an insulating member, the material of the insulating member is not limited, for example, the insulating member is made of insulating rubber, ceramic and the like, and the insulating member can avoid short circuit caused by direct electrical contact between the electrode tip 136 and the inner cutter 131.
The connection between the electrode tip 136 and the inner cutter 131 is not limited, and in this embodiment, the following scheme may be adopted, but is not limited to: the electric coagulation side 133 is provided with the electric coagulation through hole, and the insulating part is echelonment, and the insulating part is located inside the interior tool bit 131, and in the electric coagulation through hole was inlayed to a part of insulating part, electrode tip 136 was enclosed in the insulating part, and one side of electrode tip 136 was bare from one side of insulating part and was bare from electric coagulation side 133, and is insulated through the insulating part between electrode tip 136 and the internal surface of electric coagulation through hole.
The structure of the insulating member is not limited, and may be a monolithic structure, and in this embodiment, the following schemes may be adopted, but are not limited to: the insulating part is made of ceramic materials, the insulating part comprises an insulating seat 137 and an insulating cover 138, the insulating seat 137 is provided with a stepped hole, the rear end of the stepped hole is closed by the insulating cover 138, the electrode tip 136 is stepped and embedded in the stepped hole, and one end of the electrode tip 136 is exposed from the front end of the stepped hole. The term "front end and rear end of the stepped hole" as used herein means that the end of the stepped hole close to the outer surface of the inner cutter 131 is the front end and the end close to the inner cutter 131 is the rear end. The insulating cover 138 presses the insulating base 137, and the electrode tip 136 is encapsulated inside the insulating base 137 and the insulating cover 138.
In addition, for simple to operate, sound construction, can be provided with and inlay and establish the recess in one side of insulating seat 137, the one end of insulating cover 138 is inlayed and is established in the recess to prevent insulating seat 137 and insulating cover 138 relative slip, the structure is more firm.
A threading through hole is provided on the insulating base 137 and/or the insulating cover 138, and the threading through hole is used for threading a radio frequency wire, and the radio frequency wire is used for being electrically connected with the electrode tip 136.
The insulator is fixed to the inner cutter 131, and the fixing manner between the insulator and the inner cutter is not limited, and may be glue joint or the like. However, the insulating member is generally made of insulating rubber, ceramic and other materials, and is glued and fixed with the inner cutter 131, but the gluing mode is not firm, and when the inner cutter 131 rotates at a high speed, vibration is generated, so that the insulating member falls off, and a great potential safety hazard exists. Thus, in the present embodiment, the insulating member may further include a pressing plate 139, the pressing plate 139 may be made of a metal material, the pressing plate 139 is welded to the inner side of the inner cutter 131, and the pressing plate 139 is used to press and fix the insulating cover 138. By the arrangement, the insulating piece is firm, the insulating piece, the electrode tip 136 and the like are not easy to fall off, and safety and reliability are improved.
In order to cool down the electrocoagulation site during the electrocoagulation process, the electrocoagulation side 133 may be provided with a water channel 135, the water channel 135 extending from the rear end of the inner cutter head 131 to the electrode head 136, and a distance may be provided between the end of the water channel 135 and the electrode head 136, for example, the water channel 135 extends to the insulation part. The rear end of the water flow channel 135 can be communicated with a water injection channel, and physiological saline in the water injection channel can reach the electrode tip 136, namely the electro-coagulation bipolar, form good stable physiological saline conductive medium coverage between the electro-coagulation bipolar, and cool down the area outside the electro-coagulation bipolar to prevent burning surrounding tissues. Of course, in some embodiments, a flow passage may be provided at other portions of the inner cutter 131.
In this embodiment, as shown in fig. 8-10, the inner cutter assembly 12 further includes a first wire 122 and a second wire 124 (shown in fig. 12), the first wire 122 and the second wire 124 are respectively electrically connected to the positive electrode or the negative electrode of the external rf host, wherein the first wire 122 is electrically connected to the electrode tip 136, and the second wire 124 is electrically connected to the inner cutter 131.
The first wire 122 may be disposed in the inner cutter tube 120 in a penetrating manner, the front end of the first wire 122 extends into the inner cutter head 131 and is electrically connected with the electrode tip 136, in order to prevent the first wire 122 from shaking, a reed tube 121 may be disposed in the inner cutter tube 120, the reed tube 121 may extend from the rear end of the inner cutter tube 120 into the inner cutter head 131 or into the rear end of the inner cutter tube 120, the first wire 122 is disposed in the reed tube 121 in a penetrating manner, and the first wire 122 has an insulating wire skin. The spring tube 121 is elastically deformable, has a bendable property, and can protect and fix the first wire 122, and can be applied to the bent planer tool 10 having a bending angle.
Furthermore, in some embodiments, the inner side of the front end and the rear end of the inner cutter tube 120 may be provided with guide blocks 123, the shape of the guide blocks 123 is not limited, and the connection manner between the guide blocks 123 and the inner cutter tube 120 is not limited, such as gluing, welding, etc. The guide block 123 is provided with a guide through hole, and two ends of the reed pipe 121 are respectively arranged in the guide through holes of the corresponding guide block 123 in a penetrating manner, and the reed pipe 121 and the guide block 123 are fixed in a non-limited manner, such as gluing, welding and the like.
The second wire 124 may be inserted into the inner cutter tube 120 and extend to the inner cutter 131, and the following technical scheme may be adopted: as shown in fig. 12, the second wire 124 is electrically connected to the inner cutter 131 through the inner cutter tube 120, that is, the second wire 124 is electrically connected to the rear end of the inner cutter tube 120, the front end of the inner cutter tube 120 is electrically connected to the inner cutter 131, and the inner cutter tube 120 can perform a conductive function. By this arrangement, the occupied space is small, and the fluidity of the physiological saline and the like in the inner cutter tube 120 can be ensured.
The rear end of the outer cutter assembly 11 is fixed on the handle assembly 14, the rear end of the inner cutter assembly 12 is rotatably supported on the handle assembly 14, the structure of the handle assembly 14 is not limited, and the handle assembly 14 is mainly used for holding, controlling planing or hemostasis, etc. referring to the prior art, in this embodiment, the structure of the handle assembly 14 may adopt, but is not limited to, the following schemes: referring to fig. 11-13, the handle assembly 14 includes a housing 140, a movement assembly and a power assembly 170, the movement assembly and the power assembly 170 being disposed within the housing 140.
The structure and shape of the casing 140 are not limited, in this embodiment, the casing 140 includes two separable half-shells, which are respectively an upper casing 140 and a lower casing 140, the detachable connection manner between the upper casing 140 and the lower casing 140 is not limited, for example, clamping, etc., the upper casing 140 and the lower casing 140 are attached and fixed into a whole, the upper casing 140 and the lower casing 140 enclose a cavity, and the movement assembly is located in the cavity. A control key 141 may be provided on the upper case 140, the control key 141 is used to control the operation of the movement assembly and the power assembly 170, and by pressing the key, whether to operate, an operation mode, etc., the key may be made of a rubber-like material having elasticity. Of course, in some embodiments, control by other means is also possible.
The following arrangements may be used for the construction of the deck assembly: the deck assembly includes a positioning socket 150, a connecting cylinder 152, an adapter 151, a conductive sleeve 160, a conductive cylinder 161, an insulating sleeve, an insulating inner cylinder 163, and the like, which will be described in detail below.
The structure of the positioning seat 150 is not limited, the positioning seat 150 is provided with a first inner hole, the rear end of the inner cutter tube 120 is inserted into the first inner hole of the positioning seat 150, the positioning seat 150 and the inner cutter tube 120 can be in running fit through a third bearing 175, the inner ring of the third bearing 175 is fixed with the outer circle of the rear part of the inner cutter tube 120, and the outer ring of the third bearing 175 is fixed with the front end of the first inner hole of the positioning seat 150.
The connecting tube 152 is fixed at the front end of the inner hole of the positioning seat 150, and the connecting tube 152 has a second inner hole. The front half part of the connecting tube 152 may be connected and fixed with the outer cutter tube 110, and the connection manner of the two is not limited, and the two may be insulated or uninsulated. The rear end of the connecting cylinder 152 and the inner cutter tube 120 can be connected through a first bearing 153, the inner ring of the first bearing 153 is fixed with the outer circle of the rear part of the inner cutter tube 120, and the outer ring is fixed with the rear end of the second inner hole of the connecting cylinder 152. Of course, it is also possible that the connection tube 152 is not connected to the inner cutter tube 120. An insulating support 155 may be sleeved on the connecting cylinder 152, a circuit board 156 may be disposed on the insulating support 155, a switch 157 is disposed on the circuit board 156, and a key is used for controlling the switch 157.
The second wire 124 may be electrically connected to the connection cylinder 152, and the connection cylinder 152 and the inner cutter tube 120 may be electrically connected to each other through a first bearing 153 or a slip ring. Of course, the second wire 124 may be electrically connected to the inner cutter tube 120 in other manners.
The middle part of connecting cylinder 152 can be provided with radial side opening, installs adapter 151 in the radial side opening, and adapter 151 is adjacent with the rear end of outer sword pipe 110, and adapter 151 and water injection pipe 112 intercommunication are fixed, and outer sword pipe 110 rear end is fixed at the second hole front end, and the normal saline of pouring into from water injection pipe 112 gets into the annular cavity that constitutes between water injection channel, i.e. inner sword pipe 120 and the outer sword pipe 110 through the second hole, and sealing washer 154 is installed to the second hole rear end of connecting cylinder 152, and sealing washer 154 can seal the rear of water injection channel, prevents that normal saline from flowing backward.
The conductive tube 161 may be disposed at the rear end of the inner cutter tube 120, the conductive tube 161 is connected with the inner cutter tube 120 through an insulating inner tube 163, specifically, the front end of the insulating inner tube 163 is fixed with the rear end of the inner cutter tube 120, and the rear end of the insulating inner tube 163 is fixedly connected with the suction head 126 through the transition tube 127. The conductive torch 161 is electrically connected with the electrode tip 136, a radial side hole is formed in the middle of the insulating inner cylinder 163, the conductive torch 161 is fixed to the outer side of the middle of the insulating inner cylinder 163, and the rear end of the first wire 122 passes through the radial side hole of the insulating inner cylinder 163 and is electrically connected with the conductive cylinder 161.
The conductive sleeve 160 is electrically connected to the conductive cylinder 161 through a second bearing 162 or a slip ring, an outer ring of the second bearing 162 is fixed to the conductive sleeve 160, and an inner ring of the second bearing 162 is fixed to the conductive cylinder 161. An insulating sleeve is positioned at the rear end of the positioning seat 150, and an insulating cavity for accommodating the conductive torch 161 is formed between the insulating sleeve and the positioning seat 150.
The insulating sleeve comprises a detachable insulating front sleeve 164 and an insulating rear sleeve 165, the front end of the insulating front sleeve 164 is fixed with the rear end of the positioning seat 150, the conductive sleeve 160 is arranged on the inner side of the insulating front sleeve 164, the front end of the insulating rear sleeve 165 is fixedly connected with the rear end of the insulating front sleeve 164, the connection mode of the insulating rear sleeve 165 and the rear end of the insulating front sleeve 164 is not limited, and the rear end of the insulating rear sleeve 165 is fixed with the front end of the suction head 126. A radial through hole is provided in the middle of the insulating front cover 164, and the third wire 125 is electrically connected to the conductive cover 160 through the radial through hole of the insulating front cover 164. The first wire 122 may be electrically connected to the third wire 125 through the conductive sleeve 160, the second bearing 162, and the conductive slip ring, and the third wire 125 may be electrically connected to the positive or negative electrode of the radio frequency generator.
The rotation of the inner cutter assembly 12 may be controlled by the power assembly 170, the power assembly 170 includes a power motor 171, the power motor 171 may be fixed with the positioning seat 150 or the housing 140, etc., a power interface of the power motor 171 is connected with a power wire of a cable, and a position of the power motor 171 is not limited, in this embodiment, the power motor 171 is located below the middle of the positioning seat 150. The power motor 171 and the inner cutter tube 120 can be in transmission fit through a gear structure, specifically, the power assembly 170 can further comprise a driving gear 172, a driven gear 173 and a transition gear 174, the driving gear 172 is coaxially arranged on an output shaft of the power motor 171, the power motor 171 can drive the driving gear 172 to rotate, the driven gear 173 and the inner cutter tube 120 are coaxially fixed, the transition gear 174 is rotationally arranged on the positioning seat 150, the transition gear 174 is respectively meshed with the driving gear 172 and the driven gear 173, and the driving gear 172 can drive the driven gear 173 to rotate through the transition gear 174, so that output power of the power motor 171 is transmitted to the inner cutter tube 120, and the inner cutter tube 120 can rotate.
The planing tool 10 provided in this embodiment can independently plane, independently stop bleeding, plane and stop bleeding, and the working principle of the planing tool 10 is as follows:
a worker holds the handle assembly 14 to insert the front end of the planing tool 10 into the lesion tissue;
pressing a key, selecting a mode, wherein the mode can be divided into single planing, single electrocoagulation hemostasis, planing while hemostasis and the like;
taking planing and hemostasis as an example, the power motor 171 drives the inner cutter tube 120 to rotate through the driving gear 172, the transition gear 174 and the driven gear 173, so that the inner cutter head 131 rotates, and the planing side 132 and the electrocoagulation side 133 of the inner cutter head 131 are alternately opposite to the planing window of the outer cutter head 111, so as to correspond to different states, namely, the planing cutter 10 is alternately in the planing state and the electrocoagulation hemostasis state: when the planing tool 10 is in the planing state, the planing side 132 is opposite to the planing window, the planing teeth 134 of the inner tool bit 131 are capable of planing the lesion assembly at the planing window, and the electrocoagulation side 133 is located inside the outer tool bit 111; when the planing tool 10 is in the electrocoagulation hemostasis state, the electrocoagulation side 133 is opposite to the planing window, and the electric field formed between the inner cutter head 131 and the electrode head 136 can perform electrocoagulation hemostasis on the wound, at this time, the planing teeth 134 are positioned inside the outer cutter head 111; when the planer tool 10 is changed from the electric coagulation hemostasis state to the planing state, the inner cutter head 131 is in a continuous rotation state, and when the electric coagulation side 133 passes through the cutting edge of the outer cutter head 111, the cutting edge of the outer cutter head 111 can scrape adhered human tissues and the like, so that the electrode tip 136 and the electric coagulation side 133 are ensured to be clean;
during planing and/or electrocoagulation hemostasis operation, physiological saline is injected through the water injection pipe 112, flows to the focus part through the water injection channel, the water flow channel 135 and the like, and can cool, clean and the like the focus part; under the action of the negative pressure suction device, the waste human tissues and physiological saline can be extracted from the inner cutter tube 120 and the suction head 126, so that the focus part is kept clean at any time, and the visual field is clear;
after planing and/or electrocoagulation hemostatic operations are completed, the planing tool 10 is withdrawn.
The steps can be increased, decreased, modified, order adjusted, etc. as needed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (23)
1. An inner cutter head assembly for a planing tool, comprising:
an inner cutter head having a planing side and an electrocoagulation side, the planing side being provided with planing teeth;
the electrode head is positioned in the inner cutter head and exposed from the electrocoagulation side;
the inner cutter head and the electrode head form an electrocoagulation bipolar.
2. The inner cutter assembly of claim 1, wherein the planing side and the electrocoagulation side are disposed on opposite sides of the inner cutter.
3. The inner cutter assembly of claim 1, wherein the electrode tip is below an outer surface of the electrocoagulation side.
4. The inner cutter assembly of claim 1, wherein the electrode head is insulated from the inner cutter by an insulator.
5. The inner cutter assembly of claim 4, wherein the electrocoagulation side is provided with an electrocoagulation aperture, and the insulator is stepped and partially embedded within the electrocoagulation aperture.
6. The inner cutter head assembly according to claim 4, wherein the insulating member comprises an insulating seat and an insulating cover, the insulating seat is provided with a stepped hole, the rear end of the insulating seat is closed by the insulating cover, and the electrode tip is stepped and embedded in the stepped hole.
7. The inner cutter head assembly according to claim 6, wherein the insulating seat is provided with an embedded groove, the insulating cover is embedded in the embedded groove, and the insulating seat and/or the insulating cover are/is provided with a threading through hole.
8. The inner cutter assembly of claim 6, wherein the insulator further comprises a pressure plate welded to the inner side of the inner cutter and used to limit the insulating cover.
9. The inner cutter assembly of claim 4, wherein the insulator is made of ceramic.
10. The inner cutter assembly of claim 1, wherein the electrocoagulation side is provided with a water flow passage extending from a rear end of the inner cutter head to the electrode head.
11. An inner cutter assembly comprising an inner cutter tube and the inner cutter head assembly of any one of claims 1-10, wherein the inner cutter head is disposed at the front end of the inner cutter tube.
12. The inner knife assembly of claim 11, further comprising a reed tube disposed through the inner knife tube and a first wire disposed through the reed tube and electrically connected to the electrode tip.
13. The inner knife assembly according to claim 12, wherein guide blocks are arranged on the inner sides of the front end and the rear end of the inner knife tube, guide through holes are formed in the guide blocks, and two ends of the reed tube are respectively penetrated in the guide through holes.
14. The inner cutter assembly of claim 11, further comprising a second wire electrically connected to the inner cutter.
15. The inner cutter assembly of claim 14, wherein the second wire is electrically connected to the inner cutter head through the inner cutter tube.
16. A planing tool comprising a handle assembly, an outer blade assembly and an inner blade assembly according to any one of claims 11 to 15, the inner blade assembly being disposed through the outer blade assembly, the outer blade assembly and the inner blade assembly being supported by the handle assembly.
17. A planing tool according to claim 16, wherein the outer blade assembly comprises an outer blade tube, a water injection passage is formed between the outer blade tube and the inner blade tube and is connected with a water injection tube, and the inner blade tube is connected with a suction head.
18. A planing tool according to claim 17, wherein the handle assembly includes an adaptor adjacent the rear end of the outer cutter tube, the water injection tube and the water injection passage being in communication via the adaptor.
19. A planing tool according to claim 16, wherein the outer blade assembly comprises an outer blade tube, the handle assembly further comprises a connecting barrel, the connecting barrel is connected to the outer blade tube, the connecting barrel is connected to the inner blade tube by a first bearing, and the connecting barrel is sealed to the inner blade tube by a sealing ring.
20. A planing tool according to claim 16, wherein the handle assembly comprises a conductive sleeve and a conductive torch, the conductive torch being connected to the rear end of the inner cutter tube and electrically connected to the electrode head, the conductive sleeve being electrically connected to the conductive barrel by a second bearing or slip ring.
21. A planing tool according to claim 20, wherein the handle assembly further comprises an insulating sleeve and an insulating inner barrel, the insulating sleeve being located at the rear end of the inner cutter tube and forming an insulating cavity for receiving the conductive barrel, the conductive barrel being connected to the inner cutter tube by the insulating inner barrel.
22. A planing tool according to claim 16, wherein the handle assembly further comprises a housing comprising two separable half-shells.
23. A planing tool according to claim 16, further comprising a power assembly comprising a power motor in geared engagement with the inner cutter tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410176520.1A CN117731386A (en) | 2024-02-08 | 2024-02-08 | Inner cutter head assembly, inner cutter assembly and plane cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410176520.1A CN117731386A (en) | 2024-02-08 | 2024-02-08 | Inner cutter head assembly, inner cutter assembly and plane cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117731386A true CN117731386A (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410176520.1A Pending CN117731386A (en) | 2024-02-08 | 2024-02-08 | Inner cutter head assembly, inner cutter assembly and plane cutter |
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| CN (1) | CN117731386A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150173825A1 (en) * | 2013-12-20 | 2015-06-25 | Medtronic Xomed, Inc. | Debridement device having a split shaft with biopolar electrodes |
| US20150173827A1 (en) * | 2013-12-23 | 2015-06-25 | Medtronic Advanced Energy Llc | Electrosurgical cutting instrument |
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