CN115517757B - Outer knife assembly and go out water hemostasis planer tool - Google Patents
Outer knife assembly and go out water hemostasis planer tool Download PDFInfo
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- CN115517757B CN115517757B CN202211497488.4A CN202211497488A CN115517757B CN 115517757 B CN115517757 B CN 115517757B CN 202211497488 A CN202211497488 A CN 202211497488A CN 115517757 B CN115517757 B CN 115517757B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
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Abstract
The invention relates to an outer cutter assembly and an outer water hemostasis planer tool, and belongs to the technical field of medical instruments. The outer cutter assembly is used for discharging water from the outside and stopping bleeding, and comprises an outer electrode tip, an outer electrode ring, an inner electrode ring, an outer cutter pipe, an insulating sleeve and a water pipe, wherein the outer cutter pipe, the insulating sleeve and the water pipe are sequentially sleeved from inside to outside; the front end of the outer knife pipe is provided with an outer knife head, a water flowing channel is formed between the water passing pipe and the insulating sleeve, the outer electrode sleeve is arranged at the front end of the insulating sleeve in a sleeved mode, the outer electrode sleeve is arranged at the rear end of the insulating sleeve in a sleeved mode and is electrically connected with the outer knife head, and the inner electrode sleeve is arranged at the rear end of the outer knife pipe in a sleeved mode and is electrically connected with the outer knife head. The outgoing water hemostasis planer tool provided by the invention can realize planing and hemostasis functions at the same time, and is free from replacing instruments to stop bleeding when tissue bleeding occurs in a planing operation, so that the operation time is shortened, and the operation efficiency is improved; the planer tool adopts a water outlet mode, so that the conduction performance, the hemostasis effect and the cooling performance can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an outer cutter assembly and an outer water hemostasis planer tool.
Background
The planing operation is widely applied to the treatment of diseased tissues of nasal sinuses, throats and joints, a planing tool is used in the operation, for example, please refer to the patent application with the application number of CN202210567009.5 and the invention name of an anti-blocking medical planing device, the planing tool mainly comprises an outer knife component and an inner knife component, the inner knife component is arranged in the outer knife component in a penetrating mode and drives an inner knife head to rotate in an outer knife head at a high speed, the planing operation is completed, the slicing speed of the planing tool is high, the efficiency is high, however, the tissue bleeding amount in the slicing process is large, instruments such as hemostatic forceps and the like are adopted in the hemostatic process, and the operation time is greatly delayed by repeatedly replacing the instruments.
Disclosure of Invention
In view of the above, the present invention provides an outer knife assembly and an outer water hemostasis planer tool, which can simultaneously achieve the functions of planing and hemostasis, and when tissue bleeding occurs in the planing operation, no instrument needs to be replaced to stop bleeding, thereby shortening the operation time and improving the operation efficiency; in addition, the planer tool adopts a water outlet mode, so that the conduction performance, the hemostasis effect and the cooling performance can be effectively improved.
The technical scheme of the invention is as follows:
the invention provides an outer cutter component, which is used for an outer water-discharging hemostatic planer cutter and comprises an outer cutter tube, wherein the front end of the outer cutter tube is provided with an outer cutter head; the insulating sleeve is sleeved on the outer cutter tube; the water passing pipe is sleeved on the insulating sleeve and forms a water passing flow channel; the outer electrode tip is sleeved at the front end of the insulating sleeve; the inner electrode ring is electrically connected with the outer cutter head; and the outer electrode ring is electrically connected with the outer electrode head.
As an alternative of the above embodiment, the electrode assembly further includes a ring-shaped front plastic body, a middle plastic body and a rear plastic body, the front plastic body, the outer electrode ring, the middle plastic body, the inner electrode ring and the rear plastic body are sequentially connected from front to rear, and the front plastic body is provided with a water injection channel.
As an alternative of the above embodiment, the front plastic body, the outer electrode ring, the middle plastic body, the inner electrode ring and the rear plastic body are sequentially inserted and matched to form a through passage.
As an alternative of the above embodiment, the front end of the front plastic body is provided with an anti-tripping and anti-tripping groove, the anti-tripping buckle has a slope structure with a small front part and a large rear part, and the rear end of the water pipe is sleeved on the anti-tripping and embedded in the anti-tripping groove.
As an alternative to the above embodiment, the inner surface of the water passing pipe is provided with at least two water passing grooves extending along the axial direction, and the water passing grooves and the insulating sleeve enclose the water passing flow channel.
As an alternative of the above embodiment, a stepped hole is formed in the inner side of the front end of the front plastic body, an annular flow passage is defined between the stepped hole and the insulating sleeve, and the water injection channel is communicated with the water passing flow passage through the annular flow passage.
As an alternative of the above embodiment, the circumferential surfaces of the front plastic body and the rear plastic body are both provided with annular sealing ring grooves, and sealing rings are embedded in the sealing ring grooves.
As an alternative to the above embodiment, the outer electrode tip includes: a wedge-shaped ring sleeve; and the conducting strip is strip-shaped and penetrates through the water passing flow channel, and the rear end of the conducting strip is fixedly inserted into the positioning groove on the inner side of the outer electrode ring.
As an alternative of the above embodiment, the front end of the outer electrode tip is provided with a first slope surface, the first slope surface has a first end and a second end located at two sides of the outer cutter tube, the first end extends to the back surface of the outer cutter head and is insulated from the back surface, and the second end is located behind the window of the outer cutter head.
As an alternative to the above embodiment, the insulating sleeve extends from the front end of the outer electrode tip and is provided with a second sloping surface, the direction of which coincides with the direction of the first sloping surface.
The invention also provides an external water hemostasis planer tool, which comprises an inner tool assembly and the external tool assembly, wherein the inner tool assembly comprises an inner tool tube and an inner tool bit, the inner tool tube penetrates through the external tool tube, and the inner tool bit is arranged at the front end of the inner tool tube and is positioned on the inner side of the external tool bit.
The beneficial effects of the invention are:
the invention provides an external water hemostasis planer tool, which comprises an inner tool assembly and an outer tool assembly, wherein an inner tool tube can drive an inner tool bit to rotate at a high speed, the inner tool bit can plane focus tissues at a windowing position of the outer tool bit, normal saline can flow to the outer tool bit through a water flow channel between a water pipe and an insulating sleeve, an inner electrode ring and an outer electrode ring are respectively and electrically connected with the positive electrode and the negative electrode of a power supply, an outer electrode tip is close to and insulated from the outer tool bit, and the external water hemostasis planer tool can conduct electricity in the normal saline or tissue fluid. The plane cutter can realize the planing and hemostasis functions at the same time, so that the condition that tissue bleeding needs to be replaced by instruments for hemostasis in the planing operation is avoided, the operation time is shortened, and the operation efficiency is improved; in addition, the planer tool adopts a water outlet mode, so that the conduction performance, the hemostasis effect and the cooling performance can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts. 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 drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a first structural schematic view of an outgoing hemostatic planer tool according to an embodiment of the present invention;
fig. 2 is a schematic structural view ii of an outgoing hemostatic planer tool according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an out-water hemostatic planer tool provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram (without a water pipe and a front plastic body) of an outer blade assembly of the outer water hemostasis planer tool provided by the embodiment of the invention;
FIG. 5 is an enlarged partial schematic view of the front end of FIG. 3;
FIG. 6 is an enlarged partial rear end view of FIG. 3;
FIG. 7 isbase:Sub>A cross-sectional view A-A of FIG. 3;
FIG. 8 is a schematic structural diagram of an outer electrode head of an outer water hemostatic planer tool provided by an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a front plastic body of an out-water hemostatic planer tool provided in an embodiment of the present invention;
fig. 10 is a schematic structural view of an outer electrode ring of the outgoing water hemostasis planer tool provided by the embodiment of the invention.
An icon:
10-planing tool;
11-an inner cutter assembly; 12-an outer cutter assembly;
110-inner knife tube; 111-inner cutter head; 112-inner cutter head;
120-outer knife tube; 121-an insulating sleeve; 122-a water pipe; 123-an outer electrode head; 124-inner electrode ring; 125-outer electrode ring; 126-an outer cutter head; 127-a water flow channel; 128-a premold; 129-mesoplast; 130-post-shaping; 131-anti-tripping; 132-anti-drop groove; 133-water passing tank; 134-a water injection channel; 135-an annular flow channel; 136-a water injection joint; 137-sealing ring; 138-wedge ring sleeve; 139-a conductive sheet; 140-positioning grooves; 141-first slope; 142-a second slope; 143-sealing ring groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to 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 for hemostasis by water outflow, wherein the planing tool 10 is mainly used for treating diseased tissues of paranasal sinuses, throats and joints, can plane diseased tissues and extract waste or tissue fluid after planing, and meanwhile, the planing tool 10 can also inject physiological saline into the diseased tissues to perform electrocoagulation hemostasis, and does not need to replace instruments to stop bleeding when tissues bleed in the planing operation.
Wherein, planer tool 10 mainly comprises outer sword subassembly 12 and interior sword subassembly 11, and wherein, interior sword subassembly 11 wears to locate inside outer sword subassembly 12, and interior sword subassembly 11 can rotate at outer sword subassembly 12. The planing tool 10 needs to be used with a planing cell phone, the rear end of the outer tool component 12 is fixed with the planing cell phone, the rear end of the inner tool component 11 is in coaxial transmission connection with a driving shaft of the planing cell phone, and when the driving shaft of the planing cell phone rotates at a high speed, the inner tool component 11 can be driven to rotate relative to the outer tool component 12.
First, the orientation of the planer 10 will be explained: the planning tool 10 has a front end and a rear end, and during planning, the end close to the focal tissue is the front end, and the end far from the focal tissue is the rear end. The front and rear definitions of the outer blade assembly 12 and the inner blade assembly 11 may be described with reference to the orientation of the planing tool 10.
The outer knife assembly 12 can be independently produced, manufactured and used, and the specific structure of the outer knife assembly 12 is as follows: referring to fig. 1-6, the outer knife assembly 12 includes an outer knife tube 120, an insulating sleeve 121, a water pipe 122, a hemostatic assembly, and an outer knife connector.
The outer cutter tube 120 is a tubular structure, the interior of the outer cutter tube 120 is hollow, and the shape and size of the outer cutter tube 120 are not limited.
The outer cutter head 126 is disposed at the front end of the outer cutter tube 120, the connection manner between the outer cutter head 126 and the outer cutter tube 120 is not limited, for example, the outer cutter head 126 and the outer cutter tube 120 may be integrally formed, welded, and interference fit, and in this embodiment, the front end of the outer cutter tube 120 is inserted and fixed in the outer cutter head 126.
The shape of the outer cutter head 126 can be referred to the prior art, and the following schemes can be adopted but not limited to: the front end of the outer cutter head 126 is smoothly arranged, a planing space is arranged in the outer cutter head 126, and the rear end of the planing space is communicated with the outer cutter pipe 120. One side of the outer cutter head 126 is provided with a window, the planing space is communicated with the outside through the window, the window can be provided with a plurality of sharp teeth, the discharging effect of the sharp teeth is obvious, and the hemostatic effect is good.
An insulating sleeve 121 is sleeved outside the outer cutter tube 120, the insulating sleeve 121 and the outer cutter tube 120 are attached and sealed, the insulating sleeve 121 is made of insulating materials such as plastics and rubber, the insulating sleeve 121 extends from the rear end of the outer cutter tube 120 to the outer cutter head 126, a certain gap can be formed between the rearmost end of the insulating sleeve 121 and the rearmost end of the outer cutter tube 120, and a part of the rear end of the outer cutter tube 120 is exposed.
The shape of the front end of the insulating sleeve 121 is not limited, in this embodiment, the front end of the insulating sleeve 121 is provided with a second slope 142, the second slope 142 is inclined, the center line of the outer cutter tube 120 is used as a reference line, an included angle is formed between the second slope 142 and the reference line, and the included angle is not limited, for example, the included angle is 30 ° or 45 °. For convenience of description, in the present embodiment, the following definitions are made: the two sides of the outer cutter tube 120 are respectively a first side and a second side, wherein the window of the outer cutter head 126 is open toward the second side, the window of the outer cutter head 126 is a front surface of the outer cutter head 126, and a portion of the outer cutter head 126 facing the first side is a back surface of the outer cutter head 126, for example, as shown in fig. 2, an upper side of the outer cutter tube 120 is the first side, and a lower side of the outer cutter tube 120 is the second side. The second sloping surface 142 has a third end located at the forwardmost end of the second sloping surface 142 and a fourth end located at the rearwardmost end of the second sloping surface 142, wherein the third end is located at the rear face of the outer cutter head 126, the third end extends to the front end of the outer cutter head 126, the fourth end is located at the front face of the outer cutter head 126, and the fourth end extends to the rear end of the outer cutter head 126. By such arrangement, the insulation sleeve 121 can cover the outer cutter 126 as much as possible, and the window is exposed, so that the sharp teeth at the window can discharge at the focal tissue more accurately.
The water pipe 122 is sleeved outside the insulating sleeve 121, and the water pipe 122 extends to the front end of the insulating sleeve 121, wherein the insulating sleeve 121 is exposed from the front end of the water pipe 122, in this embodiment, the third end is exposed from the front end of the water pipe 122, and the fourth end is located inside the water pipe 122. The material of the water pipe 122 is not limited, for example, the water pipe 122 is made of a rubber pipe or a plastic pipe with certain elasticity, and the water pipe 122 can be elastically deformed to a certain degree.
The water flowing channel 127 is formed between the water flowing pipe 122 and the insulating sleeve 121, and the physiological saline can flow to the outer cutter head 126 through the water flowing channel 127, and the mode of forming the water flowing channel 127 by the water flowing channel 127 is not limited, for example, the inner diameter of the water flowing pipe 122 is slightly larger than the outer diameter of the insulating sleeve 121, in this embodiment, the following schemes can be adopted, but are not limited: referring to fig. 7, at least two water passing grooves 133 extending in the axial direction are disposed on the inner surface of the water passing pipe 122, an attaching portion is disposed between two adjacent water passing grooves 133, the attaching portion is attached to the insulating sleeve 121 for sealing, and a water passing channel 127 is defined between the water passing groove 133 and the insulating sleeve 121.
Physiological saline is injected from the rear end of the planer tool 10, and the physiological saline can reach the lesion tissue through the water flowing channel 127 and is electrified to stop bleeding through a hemostatic assembly, wherein the hemostatic assembly comprises an outer electrode head 123, an outer electrode ring 125 and an inner electrode ring 124.
The outer electrode head 123 is sleeved at the front end of the insulating sleeve 121, the shape of the outer electrode head 123 is not limited, for example, the outer electrode head 123 is circular, in this embodiment, the outer electrode head 123 may adopt the following scheme: referring to fig. 8, the outer electrode head 123 includes a wedge-shaped ring 138 and a conductive sheet 139, and the wedge-shaped ring 138 and the conductive sheet 139 may be integrally formed.
The wedge collar 138 is fitted over the front end of the insulation sleeve 121, and a rear half of the wedge collar 138 may be positioned between the insulation sleeve 121 and the water passing pipe 122. In this embodiment, the following scheme can be adopted for the wedge ring 138: the front end of the wedge-shaped ring sleeve 138 is provided with a first slope 141, and the direction of the first slope 141 is consistent with the direction of the second slope 142, that is, the oblique opening directions of the first slope 141 and the second slope 142 are consistent. Specifically, the first slope 141 has a first end and a second end, the first end is located at the foremost end of the first slope 141, the second end is located at the rearmost end of the first slope 141, the first end is located at the first side of the outer cutter tube 120, the second end is located at the second side of the outer cutter tube 120, the first end extends to the back surface of the outer cutter head 126, and the insulation sleeve 121 extends out from the front end of the wedge-shaped ring sleeve 138 so as to insulate the outer electrode head 123 from the outer cutter head 126. So set up, can make the windowing of outer tool bit 126 expose, and hemostatic effect when electrically conductive is better. In other embodiments, it is also possible that the front face of the wedge ring 138 is perpendicular to the axis of the outer blade tube 120.
The conductive strips 139 are disposed at the rear end of the wedge-shaped collar 138, but not limited thereto, and in this embodiment, the front ends of the conductive strips 139 are adjacent to the second end of the wedge-shaped collar 138. The conducting strip 139 is elongated, the conducting strip 139 extends along the axial direction of the outer knife tube 120, the conducting strip 139 is located between the insulating sleeve 121 and the water pipe 122, and the conducting strip 139 extends backwards to the outer electrode ring 125, so that the outer electrode ring 125 and the wedge-shaped ring sleeve 138 are electrically conductive. In this embodiment, the conductive sheet 139 may be located in one of the overflow troughs 133.
The outer electrode ring 125 is sleeved on the rear end of the insulating sleeve 121 and electrically connected to the outer electrode head 123, and the inner electrode ring 124 is sleeved on the rear end of the outer knife tube 120 and electrically connected to the outer knife head 126. The structures and positions of the outer electrode ring 125 and the inner electrode ring 124 are not limited, and in this embodiment, the structures and shapes of the outer electrode ring 125 and the inner electrode ring 124 are equal to those of the outer tool joint. Specifically, the outer tool joint comprises a front plastic body 128, a middle plastic body 129 and a rear plastic body 130, wherein the front plastic body 128, the outer electrode ring 125, the middle plastic body 129, the inner electrode ring 124 and the rear plastic body 130 are sequentially connected from front to back and form a through channel.
The connection modes of the front plastic body 128, the outer electrode ring 125, the middle plastic body 129, the inner electrode ring 124 and the rear plastic body 130 are not limited, such as abutting, clamping and the like, in this embodiment, the front plastic body 128, the outer electrode ring 125, the middle plastic body 129, the inner electrode ring 124 and the rear plastic body 130 are sequentially inserted and matched, and two adjacent components may be bonded. Taking the front molding 128 and the outer electrode ring 125 as an example, a stepped hole is formed inside the rear end of the front molding 128, the outer side of the outer electrode ring 125 is in the shape of a stepped shaft, and the front end of the outer electrode ring 125 is inserted into the stepped hole and is abutted against the stepped hole. The front plastic body 128, the outer electrode ring 125 and the middle plastic body 129 are sleeved at the rear end of the insulating sleeve 121, the inner electrode ring 124 is sleeved at the rear end of the outer knife pipe 120, and the inner diameter of the rear plastic body 130 is larger than the outer diameter of the outer knife pipe 120.
Referring to fig. 9, a water filling connector 136 may be disposed on the front molding 128, the water filling connector 136 is used for connecting with a water pipe, the water filling connector 136 has a water filling channel 134, and the water filling channel 134 is communicated with the water flow passage 127. In addition, a stepped hole may be further disposed on the inner side of the front end of the front plastic body 128, an annular flow passage 135 is defined between the stepped hole and the insulating sleeve 121, the water injection passage 134 is communicated with the water flow passage 127 through the annular flow passage 135, and the rear half portion of the front plastic body 128 is in close contact with the insulating sleeve 121 for sealing, so as to prevent the saline from flowing backwards.
In addition, in order to make the fixing of the water pipe 122 and the sealing effect between the water pipe 122 and the front plastic body 128 better, the present embodiment provides the following solutions: the front end of the front plastic body 128 is provided with an anti-tripping device 131 and an anti-tripping groove 132, the outer surface of the anti-tripping device 131 is in a round table shape, the outer diameter of the front end of the anti-tripping device 131 is smaller than that of the rear end, and the rear end of the water pipe 122 is sleeved on the anti-tripping device 131 and embedded in the anti-tripping groove 132. Because the water pipe 122 can generate elastic deformation to a certain degree, the water pipe 122 can gradually deform and move backwards from the front end of the anti-tripping device 131 until the rear end of the water pipe 122 is sleeved on the anti-tripping device 131 and embedded in the anti-tripping groove 132, the water pipe 122 in the anti-tripping groove 132 contracts at the moment, and the anti-tripping device 131 can prevent the water pipe 122 from being disconnected from the front plastic body 128. Annular sealing ring grooves 143 can be formed in the outer side of the front plastic body 128 and the outer side of the rear plastic body 130, the sealing ring grooves 143 are formed in the axial direction of the front plastic body 128 or the rear plastic body 130, and sealing rings 137 are embedded in the sealing ring grooves 143. The sealing ring 137 can seal the outer cutter joint and the planing cell phone, so that physiological saline and the like are prevented from entering the planing cell phone, and the physiological saline is prevented from corroding core components such as a bearing and a motor of the planing cell phone.
The conductive sheet 139 can penetrate through the front molding body 128 and is connected to the outer electrode ring 125, the inner side of the outer electrode ring 125 is provided with positioning slots 140, the number of the positioning slots 140 is not limited, in this embodiment, referring to fig. 10, the inner side of the outer electrode ring 125 is provided with two positioning slots 140, the two positioning slots 140 are oppositely arranged so that the conductive sheet 139 is in insertion fit with the outer electrode ring 125, the conductive sheet 139 is strip-shaped and penetrates through the water flow channel 127, and the rear end of the conductive sheet 139 is inserted and fixed in the positioning slots 140.
The structure of the inner cutter assembly 11 can refer to the prior art, the inner cutter assembly 11 includes an inner cutter tube 110 and an inner cutter head 111, the inner cutter tube 110 is inserted into the outer cutter tube 120, the inner cutter head 112 can be arranged at the rear end of the inner cutter tube 110, the inner cutter head 112 is in transmission connection with the driving shaft of the planing handset, and the inner cutter head 111 is arranged at the front end of the inner cutter tube 110 and is located inside the outer cutter head 126.
The operation principle of the planing tool 10 in this embodiment is as follows: the outer cutter assembly 12 is fixed on the planing handset, the inner cutter assembly 11 is driven by the driving shaft of the planing handset to rotate at high speed, the planing handset is externally connected with a negative pressure aspirator, and waste tissues or tissue waste liquid at the inner cutter head 111 or the outer cutter head 126 are sucked through the inner cavity of the inner cutter tube 110. The inner cutter head 111 rotates at a high speed relative to the outer cutter head 126, and the lesion tissue is mechanically cut at the window of the outer cutter head 126. The inner electrode ring 124 and the outer electrode ring 125 are respectively contacted and conducted with two electrode conductive contacts on the planing handset, and a high-frequency electric field is input. The outer cutter head 126 is conducted with the inner electrode ring 124 through the outer cutter tube 120, and the wedge ring 138 at the front end of the outer electrode head 123 is conducted with the outer electrode ring 125. The outer cutter head 126 and the outer electrode head 123 are insulated by an insulating sleeve 121, and a high-frequency electric field is formed between the outer cutter head 126 and a wedge-shaped ring sleeve 138 at the front end of the outer electrode head 123. Physiological saline is injected into a water injection channel 134 of the front plastic body 128, the physiological saline flows to the wedge-shaped ring sleeve 138 and the outer cutter head 126 through the water injection flow channel, the annular flow channel 135 and the water passing flow channel 127, the physiological saline conducts the wedge-shaped ring sleeve 138 and the outer cutter head 126 to form high-frequency current, particularly sharp teeth are arranged on the cutting edge of the outer cutter head 126, the point discharge effect is obvious, local high heat is generated to perform electric coagulation hemostasis on tissue bleeding, and the physiological saline is pumped out from the inner cutter tube 110 under the action of negative pressure suction.
In some prior arts, for example, the patent number CN201510729197.7, the name "electrocoagulation type power handle and planing component", the patent number CN201520858969.2, the name "electrocoagulation type planing tool", and the patent number CN201520857245.6, the name "water injection type planing tool" are the following technical solutions: the outside injects the physiological saline into the tail end of the planing cell phone, and the planing cell phone injects the physiological saline into the annular region between the outer planing tool 10 and the inner planing tool 10, which is different from the embodiment that the physiological saline is directly injected into the planing tool 10, and the physiological saline is injected out of the outer planing tool 10. The saline of the above mentioned comparison document is injected from the annular region between the outer knife tube 120 and the inner knife tube 110, and then is extracted from the inner cavity of the inner knife tube 110, which inevitably results in that the space between the outer knife tube 120 and the conductive layer (similar to the outer electrode tip 123 of the present scheme) on the outer layer of the outer knife tube 120 cannot be fully covered by the saline, resulting in insufficient conduction and reduced hemostasis effect; the scheme that the water is injected into the planing tool 10 by the planing mobile phone is completely different from the scheme that the water is directly injected into the planing tool 10, the planing mobile phone is a core component which is repeatedly used for a long time like a main machine, the planing mobile phone is corroded by salt water due to the fact that the salt water is introduced for a long time, sealing failure is caused due to the fact that the salt water is used for a long time, the salt water invades into a transmission structure of the planing mobile phone, and the risk of corroding core devices such as bearings and motors is extremely high.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An outer knife assembly for an outer water hemostasis planer tool, comprising:
the front end of the outer cutter tube (120) is provided with an outer cutter head (126);
the insulating sleeve (121) is sleeved on the outer cutter tube (120);
the water passing pipe (122) is sleeved on the insulating sleeve (121) and forms a water passing flow channel (127);
the outer electrode head (123) is sleeved at the front end of the insulating sleeve (121), and the outer electrode head (123) comprises a wedge-shaped ring sleeve (138) and a conducting strip (139);
an inner electrode ring (124) electrically connected with the outer cutter head (126);
an outer electrode ring (125) electrically connected to the outer electrode head (123);
the electrode assembly comprises an annular front plastic body (128), a middle plastic body (129) and a rear plastic body (130), wherein the front plastic body (128), the outer electrode ring (125), the middle plastic body (129), the inner electrode ring (124) and the rear plastic body (130) are sequentially connected from front to back, and the front plastic body (128) is provided with a water injection channel (134); the water passing pipe (122) is made of an elastic rubber pipe or plastic pipe;
a stepped hole is formed in the inner side of the front end of the front plastic body (128), an annular flow channel (135) is defined between the stepped hole and the insulating sleeve (121), and the water injection channel (134) is communicated with the water passing flow channel (127) through the annular flow channel (135); the inner surface of the water passing pipe (122) is provided with at least two water passing grooves (133) extending along the axial direction, and the water passing flow channel (127) is enclosed between the water passing grooves (133) and the insulating sleeve (121); injecting physiological saline into a water injection channel (134) of the front plastic body (128), wherein the physiological saline can flow to the wedge-shaped ring sleeve (138) and the outer cutter head (126) through the water injection channel (134), the annular flow channel (135) and the water flow channel (127) in sequence, so that the physiological saline conducts the wedge-shaped ring sleeve (138) and the outer cutter head (126) and forms high-frequency current;
the front end of the front plastic body (128) is provided with an anti-tripping device (131) and an anti-tripping groove (132), the anti-tripping device (131) is provided with a slope structure with a small front part and a large rear part, and the rear end of the water pipe (122) is sleeved on the anti-tripping device (131) and embedded in the anti-tripping groove (132).
2. The outer blade assembly according to claim 1, characterized in that the circumferential surfaces of the front plastic body (128) and the rear plastic body (130) are provided with annular sealing ring grooves (143), and sealing rings (137) are embedded in the sealing ring grooves (143).
3. The outer blade assembly according to claim 1, wherein the outer electrode head (123) comprises:
the conducting strip (139) is strip-shaped and penetrates through the water flowing channel (127), and the rear end of the conducting strip is fixedly inserted into a positioning groove (140) on the inner side of the outer electrode ring (125).
4. The outer blade assembly of claim 1, wherein the front end of the outer electrode head (123) is provided with a first ramp surface (141), the first ramp surface (141) having a first end and a second end located on either side of the outer blade tube (120), the first end extending to the back of the outer blade head (126) and being insulated therefrom, the second end being located behind the fenestration of the outer blade head (126).
5. The outer blade assembly according to claim 4, characterized in that the insulating sleeve (121) protrudes from the front end of the outer electrode head (123) and is provided with a second ramp (142), the direction of the second ramp (142) coinciding with the direction of the first ramp (141).
6. The utility model provides a go out water hemostasis planer tool which characterized in that includes:
the outer blade assembly (12) of any one of claims 1-5;
interior sword subassembly (11), including interior sword pipe (110) and interior tool bit (111), interior sword pipe (110) wear to locate in outer sword pipe (120), interior tool bit (111) set up in the front end of interior sword pipe (110) just is located outer tool bit (126) are inboard.
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| CN202211497488.4A CN115517757B (en) | 2022-11-28 | 2022-11-28 | Outer knife assembly and go out water hemostasis planer tool |
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| CN116763421B (en) * | 2023-08-18 | 2023-11-24 | 西南石油大学 | Medical planing tool bit with hemostatic function |
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