CN116077130A - Swing saw under arthroscope - Google Patents
Swing saw under arthroscope Download PDFInfo
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- CN116077130A CN116077130A CN202310210119.0A CN202310210119A CN116077130A CN 116077130 A CN116077130 A CN 116077130A CN 202310210119 A CN202310210119 A CN 202310210119A CN 116077130 A CN116077130 A CN 116077130A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/142—Surgical saws ; Accessories therefor with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a swing saw under an arthroscope, which is used in arthroscope operation and comprises the following components: the saw blade comprises a saw blade head end and a saw blade tail end, wherein the saw blade head end is hinged with the saw blade tail end, and an included angle between the saw blade head end and the saw blade tail end can be adjusted to increase the cutting range of the saw blade; the support part is internally provided with a power source for providing power for the swing of the saw blade; one end of the transmission part is inserted into the supporting part and connected with the power source, and the other end of the transmission part is positioned outside the supporting part and detachably connected with the tail end of the saw blade; the transmission part transmits the power of the power source to the saw blade and enables the saw blade to move in a reciprocating straight line parallel to the tooth-shaped surface. The invention is different from the existing swing saw in that: under the drive of the pendulum saw provided by the invention, the movement track of the saw blade is a reciprocating linear movement parallel to the tooth-shaped surface of the saw blade, and the movement track of the head end and the tail end of the saw blade is the same; the head end of the saw blade can rotate within 90 degrees under the control of the adjusting structure.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a swing saw under an arthroscope.
Background
Arthroscopic techniques are increasingly being used and developed as a means of minimally invasive surgery. The pendulum saw is a tool for cutting off bone materials, which is commonly used in bone surgery, but the pendulum saw can be used only in open surgery such as joint replacement, osteotomy correction, bone tumor excision and the like, and no pendulum saw product which can be used under an arthroscope exists at present. The motion mode of the saw blade of the existing swing saw is that the tail end of the saw blade is used as an axis to do small-angle reciprocating rotation, so that the length of the motion track of the head end of the saw blade is longer than that of the tail end of the saw blade, if the existing swing saw can be used under an arthroscope, the head end of the saw blade can be caused to repeatedly strike the inner wall of the arthroscope, and therefore operation is affected.
The present invention addresses the above-described problems by providing an arthroscopic pendulum saw.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a swing saw under an arthroscope.
An arthroscopic pendulum saw for use in arthroscopic surgery comprising:
the saw blade comprises a saw blade head end and a saw blade tail end, wherein the saw blade head end is hinged with the saw blade tail end, and an included angle between the saw blade head end and the saw blade tail end can be adjusted to increase the cutting range of the saw blade;
the support part is internally provided with a power source for providing power for the swing of the saw blade;
one end of the transmission part is inserted into the supporting part and connected with the power source, and the other end of the transmission part is positioned outside the supporting part and detachably connected with the tail end of the saw blade; the transmission part transmits the power of the power source to the saw blade and enables the saw blade to move in a reciprocating straight line parallel to the tooth-shaped surface.
Further, the saw blade comprises a saw blade head end, an extension structure and a saw blade tail end; one end of the extension structure is hinged with the head end of the saw blade, and the other end of the extension structure is integrally connected with the tail end of the saw blade; an adjusting structure is arranged in the middle of the extending structure; the adjusting structure is rotationally connected with the extending structure; the inside of the extension structure is provided with a flexible connecting structure which is connected with the extension structure in a sliding way; one end of the flexible connecting structure is connected with the saw blade head end, the other end of the flexible connecting structure is connected with the adjusting structure, and the adjusting structure is configured to drive the saw blade head end to rotate through the flexible connecting structure.
Further, a notch matched with the transmission part is arranged at the tail end of the saw blade.
Further, the saw blade head end comprises a tool bit, a first rotating pair and a first containing groove; the first rotating pair is arranged at one end of the cutter head, which is close to the extension structure; the first storage groove is formed in one side, far away from the cutter head, of the first rotating pair.
In some embodiments of the present application, the power source comprises an electric motor; the motor is arranged in the supporting part and is fixedly connected with the supporting part.
In some embodiments of the present application, a control portion for controlling the motor switch is provided; one end of the control part is connected with the motor through a wire, and the other end of the control part is connected with an external power supply through a wire.
In some embodiments of the present application, the transmission includes an output assembly, a conductive assembly, and a reversing assembly; one end of the conduction component is connected with the motor through the reversing component, and the other end of the conduction component is connected with the tail end of the saw blade through the output component.
Further, the inside of the support part comprises a slideway; the conduction component is connected with the slideway in a sliding way.
Further, the reversing assembly comprises a reverser and an eccentric structure; one end of the eccentric structure is connected with a main shaft of the motor, and the other end of the eccentric structure is spliced with the commutator; one end of the commutator, which is far away from the eccentric structure, is fixedly connected with the conducting component; the eccentric structure shifts the commutator to move, so that the conduction assembly slides in the slideway in a reciprocating manner.
Further, the conductive assembly includes a drive slide; one end of the conduction component is fixedly connected with the commutator, the other end of the conduction component is fixedly connected with the output component, and the middle part of the conduction component is in sliding connection with the slideway.
Further, the output assembly comprises a locking piece, a swinging structure and a limiting structure; the swing structure is inserted into the support part, and the side wall of the swing structure is fixedly connected with the conduction component; the locking piece passes through the swing structure and then is detachably connected with the limiting structure.
Further; one side of the swinging structure, which faces the locking piece, is provided with a mounting rack; the mounting frame is matched with the tail end of the saw blade.
In some embodiments of the present application, the support includes a power pod and a grip end; the holding end is arranged on the outer side wall of the power cabin and is used for providing holding objects for an operator; the power source is arranged in the power cabin.
Further, the supporting portion further comprises a swinging end, and the swinging end is arranged on the outer side wall of the power cabin.
Further, one end of the transmission part is inserted into the power cabin through the swinging end and is connected with a power source.
The invention has the beneficial effects that: the invention provides a swing saw capable of being used under an arthroscope, which is different from the existing swing saw in that: under the drive of the pendulum saw provided by the invention, the movement track of the saw blade is a reciprocating linear movement parallel to the tooth-shaped surface of the saw blade, and the movement track of the head end and the tail end of the saw blade is the same; the head end of the saw blade can rotate within 90 degrees under the control of the adjusting structure, so that some operation modes which cannot be realized under the prior arthroscope are realized, and new operation technology and method are provided for arthroscopy operation.
Drawings
FIG. 1 is a schematic view of a pendulum saw embodying the present invention;
FIG. 2 is a front view of a pendulum saw embodying the present invention;
FIG. 3 is a schematic view of a control section and a negative pressure suction section of a pendulum saw embodying the present invention;
FIG. 4 is a cross-sectional view of a pendulum saw embodying the present invention;
FIG. 5 is a schematic diagram of a transmission portion for implementing the present invention;
FIG. 6 is a front view of a saw blade embodying the present invention;
FIG. 7 is a schematic view of a saw blade embodying the present invention;
FIG. 8 is a schematic view of the internal structure of a saw blade embodying the present invention;
FIG. 9 is a schematic view of the structure of a blade tip embodying the present invention;
FIG. 10 is a schematic structural view of an adjustment structure embodying the present invention;
in the figure, 1, a saw blade; 2. a support part; 3. a negative pressure suction unit; 4. a control unit; 5. a transmission part; 11. a saw blade head end; 12. a flexible connection assembly; 13. an extension structure; 14. an adjustment structure; 15. the tail end of the saw blade; 16. a locking unit; 111. a cutter head; 112. a first rotating pair; 113. a first storage groove; 121. a first connecting wire; 122. a second connecting wire; 141. an operation panel; 142. a second revolute pair; 143. a second storage groove; 21. a swinging end; 22. a power cabin; 23. a grip end; 31. a shutoff device; 311. a key; 312. a sliding cabin; 313. a reset structure; 32. connecting a suction tube; 33. a suction tube is arranged in the inner part; 41. a switch; 42. a controller; 43. a command wire; 44. starting a wire; 45. a power line; 51. a locking member; 52. a motor; 53. a gasket; 54. a swinging structure; 55. a limit structure; 56. a transmission slide block; 57. a slideway; 58. a commutator; 59. an eccentric structure.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The invention may be embodied or practiced in other different specific embodiments and features from the following examples and examples may be combined with one another without departing from the spirit or scope 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.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Arthroscopic techniques are increasingly being used and developed as a means of minimally invasive surgery. The pendulum saw is a tool for cutting off bone materials, which is commonly used in bone surgery, but the pendulum saw can be used only in open surgery such as joint replacement, osteotomy correction, bone tumor excision and the like, and no pendulum saw product which can be used under an arthroscope exists at present. Therefore, the invention aims to design a swing saw which can be conveniently used under an arthroscope. Under the drive of the pendulum saw provided by the invention, the movement track of the saw blade is a reciprocating linear movement parallel to the tooth-shaped surface of the saw blade, and the movement track of the head end and the tail end of the saw blade is the same; the head end of the saw blade can rotate within 90 degrees under the control of the adjusting structure, so that some operation modes which cannot be realized under the prior arthroscope are realized, and new operation technology and method are provided for arthroscopy operation.
Example 1
An arthroscopic pendulum saw as shown in fig. 1-3 for use in arthroscopic surgery comprising:
the saw blade 1 comprises a saw blade head end 11 and a saw blade tail end 15, wherein the saw blade head end 11 is hinged with the saw blade tail end 15, and the included angle between the saw blade head end 11 and the saw blade tail end 15 can be adjusted so as to increase the cutting range of the saw blade 1;
a supporting part 2, in which a power source is arranged to provide power for the swing of the saw blade 1;
one end of the transmission part 5 is inserted into the support part 2 and connected with a power source, and the other end of the transmission part is positioned outside the support part 2 and detachably connected with the tail end 15 of the saw blade; the transmission part 5 transmits the power of the power source to the saw blade 1 and makes the saw blade 1 reciprocate in a straight line parallel to the tooth surface.
The invention is different from the existing swing saw in that: under the drive of the pendulum saw provided by the invention, the movement track of the saw blade 1 is a reciprocating linear movement parallel to the tooth-shaped surface of the saw blade 1, and the movement track of the head end 11 and the tail end of the saw blade are the same; the blade head end 11 can rotate within 90 degrees under the control of the adjusting structure 14 so as to realize some operation modes which cannot be realized under the prior arthroscope, and provide new operation technology and method for arthroscopy.
The pendulum saw provided by the invention can be applied to:
1) Resecting bone tumor under arthroscope;
2) Preparing osteocartilage blocks under arthroscope;
3) And (5) performing osteophyte excision under arthroscope, bone groove and bone bed preparation.
The pendulum saw provided by the invention has the following advantages compared with the traditional grinding head and trephine:
1) The bone tumor can be completely resected and taken out without grinding and sucking the bone tumor, thus obtaining complete pathological specimens, improving the pathological diagnosis rate and reducing the possibility of recurrence and residue of the tumor.
2) Can be used for preparing special-shaped osteochondral blocks (such as wedge-shaped or cube-shaped).
3) Can be used for preparing bone beds and bone grooves and cutting bone fragments, and has smoother bone surface compared with a grinding head.
The saw blade 1 shown in fig. 6-10, which includes a blade head end 11, an extension 13 and a blade tail end 15; one end of the extension structure 13 is hinged with the saw blade head end 11, and the other end is integrally connected with the saw blade tail end 15; an adjusting structure 14 is arranged in the middle of the extension structure 13; the adjusting structure 14 is rotatably connected with the extension structure 13; the flexible connecting component 12 is arranged inside the extension structure 13, and the flexible connecting component 12 is connected with the extension structure 13 in a sliding way; one end of the flexible connection assembly 12 is connected with the saw blade head end 11, and the other end is connected with the adjusting structure 14, so that the adjusting structure 14 drives the saw blade head end 11 to rotate through the flexible connection assembly 12.
The extension structure 13 is used to extend the blade 1 into and out of the skin and joint, which can be accessed in a conventional arthroscopic sleeve. The extension 13 can be designed in different lengths, primarily 15-25cm.
The saw blade 1 provided by the invention can be used under an arthroscope, and the osteotomy angle of the swing saw can be regulated under the arthroscope, so that some operation which cannot be performed under the arthroscope originally can be completed, and the operation technology is improved.
As shown in fig. 8, the flexible connection unit 12 includes a first connection wire 121 and a second connection wire 122; one end of the first connecting wire 121 is arranged at one side of the saw blade head end 11 facing the adjusting structure 14, and the other end is arranged in the middle of the adjusting structure 14; one end of the second connecting wire 122 is arranged at one side of the saw blade head end 11 far away from the adjusting structure 14, and the other end is arranged at one end of the adjusting structure 14 facing the extending structure 13. Specifically, the first connecting wire 121 and the second connecting wire 122 are steel wires.
Taking fig. 8 as an example, if the adjusting structure 14 is rotated counterclockwise, the adjusting structure 14 drives the saw blade head end 11 to rotate counterclockwise through the first connecting wire 121; if the adjusting structure 14 is rotated clockwise, the adjusting structure 14 drives the saw blade head end 11 to rotate clockwise through the second connecting wire 122. The saw blade head end 11 can rotate at one end of the extension structure 13 under the drive of the adjusting structure 14, and the rotation angle is between 0 and 90 degrees.
As shown in fig. 9, the blade head end 11 includes a head 111, a first rotating pair 112, and a first receiving groove 113; the first rotating pair 112 is arranged at one end of the cutter head 111 close to the extension structure 13; the first receiving groove 113 is provided on a side of the first rotating pair 112 away from the cutter head 111. The first rotating pair 112 is rotationally connected with the extension structure 13; the first connection wire 121 and the second connection wire 122 are disposed at both ends of the first receiving groove 113, respectively. As can be seen from fig. 8, the rotation axis of the first rotation pair 112 is perpendicular to the sliding direction of the first connecting wire 121 and the second connecting wire 122.
The side of the cutter head 111 away from the first revolute pair 112 is a tooth surface.
Specifically, the first receiving groove 113 is disposed on a side wall of the first rotating pair 112, and a width of the first receiving groove 113 is greater than diameters of the first connecting wire 121 and the second connecting wire 122. The cutter head 111 is serrated.
The saw blade head end 11 can have different specifications of length and width, primarily designed to be 4-6mm in width and 5-30mm in length.
As shown in fig. 10, the adjusting structure 14 includes an operation plate 141, a second revolute pair 142, and a second receiving groove 143; the second revolute pair 142 is arranged at one end of the operation plate 141 near the extension structure 13; the second receiving groove 143 is provided at a side of the second revolute pair 142 facing the blade head end 11. The second revolute pair 142 is rotatably connected with the extension structure 13; the first connection wire 121 and the second connection wire 122 are disposed at both ends of the second receiving groove 143, respectively. As can be seen from fig. 8, the rotation axis of the second revolute pair 142 is perpendicular to the sliding direction of the first connecting wire 121 and the second connecting wire 122.
Specifically, the second receiving groove 143 is disposed on a sidewall of the second revolute pair 142, and a width of the second receiving groove 143 is greater than diameters of the first connecting wire 121 and the second connecting wire 122.
As shown in fig. 6-10, a notch adapted to the transmission part 5 is provided on the tail end 15 of the saw blade for connecting the pendulum saw handle and the power system to mount the saw blade 1 on an existing pendulum saw.
In some embodiments of the present application, a locking unit 16 for locking the adjustment structure 14 is provided on the extension structure 13. Since the adjustment structure 14 and the blade head end 11 are kept in synchronous rotation under the traction of the flexible connection assembly 12, the state of the blade head end 11 is also locked when the state of the adjustment structure 14 is locked by the locking unit 16.
Further, the locking unit 16 is an adjusting bolt, the adjusting bolt is screwed down, the adjusting bolt is propped against the side wall of the adjusting structure 14, and the state of the adjusting structure 14 is locked by friction force, so that the situation that after the pendulum saw is started, the adjusting structure 14 and the saw blade head end 11 randomly swing under the vibration of the pendulum saw, and the saw blade head end 11 cannot cut a target is prevented.
As shown in fig. 4-5, in some embodiments of the present application, the power source includes an electric motor 52; the motor 52 is provided inside the support part 2 and fixedly connected to the support part 2. As shown in fig. 3, a control section 4 for controlling the switch 41 of the motor 52 is provided; one end of the control unit 4 is connected to the motor 52 via a wire, and the other end is connected to an external power source via a wire.
Preferably, the control section 4 includes a switch 41 and a controller 42; the switch 41 is connected with the controller 42 through a command wire 43; one end of the controller 42 is connected to the motor 52 via the start-up wire 44, and the other end is connected to the power cord 45. The switch 41 is pressed, and the switch 41 sends a signal to the controller 42 through the instruction wire 43, so that the controller 42 is communicated with the starting wire 44 and the power wire 45, and the motor 52 is communicated with the power supply and then rotates.
Specifically, the switch 41 is a foot switch 41, and the motor 52 is controlled to be turned on or off by stepping on the foot, so as to achieve the purpose of controlling the switch 41 of the motor 52 instead of hands.
As shown in fig. 4-5, the transmission part 5 comprises an output component, a conduction component and a reversing component; one end of the conduction component is connected with the motor 52 through the reversing component, and the other end of the conduction component is connected with the tail end 15 of the saw blade through the output component; the reversing assembly receives the power provided by the motor 52 and converts the circumferential driving force provided by the motor 52 into reciprocating linear motion with the aid of the conduction assembly.
The inside of the support 2 includes a slideway 57; the conductive assembly is slidably coupled to the slideway 57; the reversing assembly drives the conduction assembly in a reciprocating linear motion along the slideway 57.
The reversing assembly includes a reverser 58 and an eccentric structure 59; one end of the eccentric structure 59 is connected with the main shaft of the motor 52, and the other end is spliced with the commutator 58; one end of the commutator 58 remote from the eccentric structure 59 is fixedly connected with the conductive assembly; the eccentric structure 59 moves the commutator 58 to reciprocate the conductive assembly within the slideway 57.
Specifically, as shown in fig. 4, the axis of the toggle post, to which the eccentric structure 59 is connected to the commutator 58, is parallel and non-collinear with the axis of the motor 52. The poking column is of a cylindrical structure, and a sliding groove matched with the poking column is arranged on the reverser 58. The conductive assembly moves along the slide 57 and the commutator 58 is also only capable of reciprocating rectilinear movement under the influence of the conductive assembly. The circular motion of the toggle post in three dimensions is converted to a reciprocating linear motion of the commutator 58 in a plane.
Specifically, the conductive assembly includes a drive slide 56; one end of the conduction assembly is fixedly connected with the commutator 58, the other end is fixedly connected with the output assembly, and the middle part is in sliding connection with the slideway 57.
As shown in fig. 4-5, the output assembly includes a locking member 51, a swing structure 54, and a limit structure 55; the swinging structure 54 is inserted into the support part 2, and the side wall of the swinging structure 54 is fixedly connected with the conducting component; the locking member 51 is detachably connected to the limiting structure 55 after passing through the swinging structure 54.
Further, the swinging structure 54 is provided with a mounting frame toward one side of the locking member 51; the mounting frame is adapted to the blade tail end 15. The locking member 51 is used to fix the tail end 15 of the saw blade on the mounting frame, so that the transmission part 5 is detachably connected with the tail end 15 of the saw blade. Specifically, the locking member 51 is threaded with the limiting structure 55 after passing through the swinging structure 54.
Preferably, in order to prevent the locking member 51 from loosening during the high frequency oscillation of the oscillating structure 54, thereby causing the lens to fly out and to prevent accidents, a spacer 53 is provided between the locking member 51 and the oscillating structure 54; the locking member 51 is detachably connected with the limiting structure 55 after passing through the spacer 53 and the swinging structure 54 in sequence.
As shown in fig. 2-5, the support 2 includes a power compartment 22 and a gripping end 23; a gripping end 23 is provided on the outer side wall of the power pod 22 for providing grip for an operator; the power source is arranged inside the power cabin 22; the support part 2 further comprises a swinging end 21, and the swinging end 21 is arranged on the outer side wall of the power cabin 22; the swing end 21 is provided with a through hole adapted to the output assembly, so that the transmission part 5 is inserted into the power cabin 22 through the swing end 21 and connected to the power source.
Example 2
As shown in fig. 3 to 5, this embodiment is different from embodiment 1 in that:
a negative pressure suction part 3 is arranged in the support part 2; one end of the negative pressure suction part 3 is communicated with the outside of the supporting part 2 through the swinging end 21, and the other end is communicated with the outside of the supporting part 2 through the holding end 23;
preferably, the negative pressure suction part 3 includes a interceptor 31 and a built-in suction tube 33; the interceptor 31 is provided inside the built-in suction pipe 33, and the built-in suction pipe 33 is selectively intercepted by the interceptor 31 so that an operator can control the opening or closing of the negative pressure suction part 3.
Specifically, the interceptor 31 protrudes to the outside of the supporting part 2 through the grip end 23; the built-in suction tube 33 is provided inside the support part 2; one end of the built-in suction tube 33 is connected to the outside of the support part 2 via the swing end 21, and the other end is connected to the connection suction tube 32 via the grip end 23. When the suction pipe 32 is connected with a negative pressure suction machine in operation, the interceptor 31 is pressed to enable the built-in suction pipe 33 to be communicated when the suction of the negative pressure is needed, and body fluid at the head end 11 of the saw blade is sucked out; after the negative pressure suction is completed, the shutoff device 31 is released, the built-in suction pipe 33 is blocked, and the negative pressure suction passage inside the swing saw is closed.
In some embodiments of the present application, the interceptor 31 includes a key 311, a sliding compartment 312, and a reset structure 313; the sliding cabin 312 is inserted into the holding end 23 and then communicated with the built-in suction tube 33; the key 311 is inserted into the interior of the sliding compartment 312 and is slidably connected with the sliding compartment 312; the reset structure 313 is arranged in the sliding cabin 312, one end of the reset structure 313 is connected with the key 311, and the other end is connected with the inner wall of the sliding cabin 312;
the inside of the button 311 is provided with a liquid channel, the button 311 is pressed to the inside of the sliding cabin 312, the liquid channel is communicated with the built-in suction pipe 33, and the negative pressure suction function is started. When negative pressure suction is needed, the key 311 is pressed to enable the liquid channel to be communicated with the built-in suction pipe 33, a negative pressure suction passage in the swing saw is opened, and body fluid at the head end 11 of the saw blade is sucked out; after the negative pressure suction is finished, the cut-off device 31 is loosened, the reset structure 313 pushes the key 311 to move, the liquid channel and the built-in suction tube 33 are dislocated, and a negative pressure suction passage inside the swing saw is closed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An arthroscopic pendulum saw for use in arthroscopic surgery, comprising:
the saw blade comprises a saw blade head end and a saw blade tail end, wherein the saw blade head end is hinged with the saw blade tail end, and an included angle between the saw blade head end and the saw blade tail end can be adjusted to increase the cutting range of the saw blade;
the support part is internally provided with a power source for providing power for the swing of the saw blade;
one end of the transmission part is inserted into the supporting part and connected with the power source, and the other end of the transmission part is positioned outside the supporting part and detachably connected with the tail end of the saw blade; the transmission part transmits the power of the power source to the saw blade and enables the saw blade to move in a reciprocating straight line parallel to the tooth-shaped surface.
2. The arthroscopic pendulum saw of claim 1 wherein said saw blade further comprises an extension; one end of the extension part is hinged with the head end of the saw blade, and the other end of the extension part is integrally connected with the tail end of the saw blade; an adjusting part is arranged in the middle of the extending part; the adjusting part is rotationally connected with the extending part; the inside of the extension part is provided with a flexible connecting part which is connected with the extension part in a sliding way; one end of the flexible connecting part is connected with the head end of the saw blade, the other end of the flexible connecting part is connected with the adjusting part, and the adjusting part is configured to drive the head end of the saw blade to rotate through the flexible connecting part.
3. An arthroscopic pendulum saw according to claim 1 and wherein said power source comprises a motor; the motor is arranged in the supporting part and is fixedly connected with the supporting part.
4. A swing saw according to claim 3, wherein a control part for controlling the motor switch is provided; one end of the control part is connected with the motor through a wire, and the other end of the control part is connected with an external power supply through a wire.
5. A swing saw according to claim 3, wherein said drive portion comprises an output assembly, a conductive assembly and a reversing assembly; one end of the conduction component is connected with the motor through the reversing component, and the other end of the conduction component is connected with the tail end of the saw blade through the output component.
6. An arthroscopic pendulum saw according to claim 5 and wherein said conductive assembly comprises a drive slide; one end of the conduction component is fixedly connected with the commutator, the other end of the conduction component is fixedly connected with the output component, and the middle part of the conduction component is in sliding connection with the slideway.
7. The arthroscopic pendulum saw of claim 5 wherein said output assembly comprises a locking member, a pendulum structure and a limiting structure; the swing structure is inserted into the support part, and the side wall of the swing structure is fixedly connected with the conduction component; the locking piece passes through the swing structure and then is detachably connected with the limiting structure.
8. The arthroscopic pendulum saw according to any of claims 1-7, wherein said support comprises a power pod and a grip end; the holding end is arranged on the outer side wall of the power cabin and is used for providing holding objects for an operator; the power source is arranged in the power cabin.
9. The arthroscopic pendulum saw according to claim 8, wherein a negative pressure suction portion is provided inside said support portion; one end of the negative pressure suction part is communicated with the outside of the supporting part through the swinging end, and the other end of the negative pressure suction part is communicated with the outside of the supporting part through the holding end; the negative pressure suction part comprises a cut-off device and a built-in suction tube; the interceptor is arranged in the built-in suction pipe, and the built-in suction pipe can be selectively intercepted by the interceptor, so that an operator can control the opening or closing of the negative pressure suction part.
10. The arthroscopic pendulum saw of claim 9 wherein said cutout comprises a key, a sliding pod and a reset mechanism; the sliding cabin is inserted into the holding end and then communicated with the built-in suction tube; the key is inserted into the sliding cabin and is in sliding connection with the sliding cabin; the reset structure is arranged in the sliding cabin, one end of the reset structure is connected with the key, and the other end of the reset structure is connected with the inner wall of the sliding cabin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310210119.0A CN116077130B (en) | 2023-03-07 | 2023-03-07 | Swing saw under arthroscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310210119.0A CN116077130B (en) | 2023-03-07 | 2023-03-07 | Swing saw under arthroscope |
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| CN116077130B CN116077130B (en) | 2023-06-30 |
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| US20080027449A1 (en) * | 2006-07-28 | 2008-01-31 | Depuy Products, Inc. | Adapters to convert output motion of orthopaedic bone saws and bone drills |
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| US20170100132A1 (en) * | 2015-10-08 | 2017-04-13 | Howmedica Osteonics Corp. | Globalized total knee instrumentation |
| CN111281473A (en) * | 2020-03-31 | 2020-06-16 | 北京市春立正达医疗器械股份有限公司 | Medical swing saw instrument |
| CN214966252U (en) * | 2021-03-17 | 2021-12-03 | 贵州梓锐科技有限公司 | Saw blade for minimally invasive surgery |
| CN215739247U (en) * | 2021-09-24 | 2022-02-08 | 杭州柳叶刀机器人有限公司 | Swing saw mechanism and osteotomy robot |
| CN218356302U (en) * | 2022-05-31 | 2023-01-24 | 重庆西山科技股份有限公司 | Reciprocating saw blade with protective sheath and saw cutting machine head |
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| US20080027449A1 (en) * | 2006-07-28 | 2008-01-31 | Depuy Products, Inc. | Adapters to convert output motion of orthopaedic bone saws and bone drills |
| CN105877805A (en) * | 2014-09-19 | 2016-08-24 | 芜湖锐进医疗设备有限公司 | A multifunctional oscillating saw |
| US20170100132A1 (en) * | 2015-10-08 | 2017-04-13 | Howmedica Osteonics Corp. | Globalized total knee instrumentation |
| CN111281473A (en) * | 2020-03-31 | 2020-06-16 | 北京市春立正达医疗器械股份有限公司 | Medical swing saw instrument |
| CN214966252U (en) * | 2021-03-17 | 2021-12-03 | 贵州梓锐科技有限公司 | Saw blade for minimally invasive surgery |
| CN215739247U (en) * | 2021-09-24 | 2022-02-08 | 杭州柳叶刀机器人有限公司 | Swing saw mechanism and osteotomy robot |
| CN218356302U (en) * | 2022-05-31 | 2023-01-24 | 重庆西山科技股份有限公司 | Reciprocating saw blade with protective sheath and saw cutting machine head |
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| CN116077130B (en) | 2023-06-30 |
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