Hand switches and connectors for electric surgical handpieces

Abstract

To provide an ergonomically optimized handswitch for a powered surgical handpiece.SOLUTION: A handswitch 50 for a powered surgical handpiece 54 comprises a mounting base 62, a lever 64, a spring, a run-safe switch 68 and a lever extension 70. The mounting base defines a pivot axis. The elongated lever defines a lever axis substantially normal to a direction of the pivot axis. The lever includes a proximal end pivotably connected to the mounting base at the pivot axis and a distal end opposite the proximal end. A first track is on an inner side of the lever. A second track is on an outer side of the lever opposite the inner side, with both tracks substantially parallel to the lever axis. The spring is between the base and the lever and biases the lever about the pivot axis. The run-safe switch is slidably disposed on the first track. The lever extension is slidably disposed on the second track.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] Related Application This application claims U.S. Provisional Patent Application No. 62 / 832,983 filed on April 12, 2019 and U.S. Provisional Patent Application No. 62 / 884,765 filed on August 9, 2019 for both priority and all benefits. The entire content of each is incorporated herein by reference . Background Art

[0002] There is a need for a hand switch for a motorized surgical handpiece that is easier to install and provides improved operational convenience . Summary of the Invention Problem to be Solved by the Invention

[0003] The prior art fails to address the need for providing an ergonomically optimized hand switch for motorized surgical handpieces . Means for Solving the Problem

[0004] A hand switch for a motorized surgical handpiece comprises a mounting base, a lever, a spring, a safety switch (run-safe switch), and a lever extension. The mounting base defines a pivot axis . The elongated lever defines a lever axis substantially perpendicular to the direction of the pivot axis. The lever comprises a proximal end pivotably connected to the mounting base at the pivot axis, and a distal end opposite the proximal end . A first track is located on an inner side of the lever. A second track is located on an opposite outer side of the inner side of the lever, and both tracks are substantially parallel to the lever axis. The spring is disposed between the base and Located between the levers, it applies a bias to the levers around the pivot axis. The safety switch is the first It is slidably positioned on the track. The lever extension is slidably positioned on the second track. It is placed in Noh theater.

[0005] The hand switch and its features include additional features and modifications as described below. See, such features and modifications are included separately or in combination with each other, and so Such combinations are restricted only by mutual exclusivity.

[0006] At least one of the first and second tracks of the hand switch is T It can be either a slot or a T-track.

[0007] Both the first and second tracks of the hand switch are T tracks. obtain.

[0008] The lever of the hand switch may have first and second sides connecting the inside and outside. The safety switch of the hand switch extends laterally beyond at least one side of the lever. It may have at least one extending outboard side.

[0009] The outboard surface of the hand switch lever may be defined by the indicator arm. ru.

[0010] The lever of the hand switch is one of the magnets and magnet holders fixed to the safety switch. It may have an internal slot that can receive at least one.

[0011] The slot on the hand switch lever can be shorter than the length of the lever. The set can define the range of motion of the safety switch.

[0012] The detent may be arranged in the hand switch between the safety switch and the lever .

[0013] The detent of the hand switch between the safety switch and the lever may include a safety switch plung er, a first notch associated with the actuated position of the safety switch, and a second notch associated with the inactivated position of the safety switch.

[0014] The hand switch may have a safety switch plunger arranged on the lever, and a notch arranged on the switch.

[0015] The hand switch may have a detent arranged between the lever and a lever extension.

[0016] The detent of the hand switch between the lever and the lever extension may include an extension plunger, and first, second, third and four th notches respectively associated with the first, second, third and fourth positions of the extension .

[0017] The extension plunger of the detent in the hand switch between the lever and the lever extension may be arranged on the lever, and the notches may be arranged on the lever extension.

[0018] The mounting base of the hand switch may include an annular collar that defines a mounting axis substantially perpendicular to at least the direction of the pivot axis . The collar may be sized for slidable arrangement on the proximal end of a handpiece .

[0019] The annular collar of the hand switch may define a positioning tab that extends axially in the distal direction The tab includes an angled wedge surface. The annular collar has details on its inner diameter. The detent notch further includes one of the following: a plunger and a detent notch defining the bias surface. It is visible.

[0020] The annular collar of the hand switch may include at least a second positioning tab. The fixing tab may also extend axially distally and include an angled wedge surface. It is possible.

[0021] The detent plunger of the hand switch mounting base detent is positioned in the collar. It is possible.

[0022] Surgical tools include electric surgical handpieces and hand switches. The handpiece includes a handpiece that extends in the longitudinal direction and a magnetic field sensor. The handpiece housing extends along the housing axis. The magnetic field sensor is located in the housing. It is located inside the ring. The hand switch consists of a mounting base, a long lever, a spring, and a safety mechanism. Includes all switches and lever extensions. The mounting base is substantially perpendicular to the housing axis. It defines a pivot shaft having a perpendicular direction and a mounting surface extending in a first direction. (Long, slender lever) This defines a lever axis substantially perpendicular to the direction of the pivot axis. The lever has a proximal end, a distal end, and a third Includes track 1 and track 2. The proximal end pivots to the mounting base on a pivot axis. They are connected. The distal end is on the opposite side of the proximal end. The first track is essentially housing It is located on the inside facing the axis. The second track is on the outside on the opposite side of the inside, and both tracks It is substantially parallel to the lever axis. The spring is located between the base and the lever, and around the pivot axis, it moves. The bar is biased. The safety switch is slidably positioned on the first track and magnetically The stone is fixed in place. The lever extension is slidably positioned on the second track.

[0023] Surgical tools and their characteristics include additional features and modifications as described below. Such features and modifications are included separately or in combination with each other, such Combinations are restricted only by mutual exclusivity.

[0024] At least one of the first and second tracks of the hand switch is T It can be either a slot or a T-track.

[0025] Both the first and second tracks of the hand switch are T tracks. obtain.

[0026] The lever of the hand switch may have first and second sides connecting the inside and outside. The safety switch of the hand switch extends laterally beyond at least one side of the lever. It may have at least one extending outboard surface.

[0027] The outboard surface of the hand switch lever may be defined by the indicator arm. ru.

[0028] The lever of the hand switch is one of the magnets and magnet holders fixed to the safety switch. It may have an internal slot that can receive at least one.

[0029] The slot on the hand switch lever can be shorter than the length of the lever. The set can define the range of motion of the safety switch.

[0030] The detent can be placed on the hand switch between the safety switch and the lever. .

[0031] The detent of the hand switch between the safety switch and the lever is the safety switch plunge. A first notch associated with the operating position of the safety switch, and a deactivated position of the safety switch. It may include a second notch associated with the position.

[0032] The hand switch has a safety switch plunger located on the lever, and the switch is located on the lever. It may have a notch.

[0033] The hand switch may have a detent positioned between the lever and the lever extension.

[0034] The detent of the hand switch between the lever and the lever extension is the extension plunger and the extension The first, second, third and fourth positions of the long part are related to the first, second, third and fourth, respectively It may include 4 notches.

[0035] The extension plunger of the detent in the hand switch between the lever and the lever extension is The notch can be positioned on the bar, and the notch can be positioned on the lever extension.

[0036] The mounting base for the hand switch is mounted at least substantially perpendicular to the direction of the pivot axis. It may include an annular collar that defines the axis. The collar is slidable on the proximal end of the handpiece. It can be resized for placement.

[0037] The annular collar of the hand switch defines a positioning tab that extends axially in the distal direction. The tab includes an angled wedge surface. The annular collar has details on its inner diameter. The detent notch further includes one of the following: a plunger and a detent notch defining the bias surface. It is visible.

[0038] The annular collar of the hand switch may include at least a second positioning tab. The fixing tab may also extend axially distally and include an angled wedge surface. It is possible.

[0039] The detent plunger of the hand switch mounting base detent is located inside the collar. It can be placed there.

[0040] The hand switch for the electric surgical handpiece consists of a mounting base, a long lever, and a spring. Includes a safety switch and a mounting base. The mounting base defines the pivot axis and Includes an annular collar that defines a mounting axis substantially perpendicular to the direction of the pivot axis, if not otherwise. It is sized for a position that allows it to slide on the proximal end of the handpiece in the direction of the mounting axis. The elongated lever is pivotably connected to the mounting base at its proximal end. The pivot point is located between the base and the lever, and applies a bias to the lever around the pivot axis. Safety switch The lever is slidably positioned. The mounting base is the first position of the collar. It further comprises a tab and a second positioning tab. Each tab is distal to the main part of the color. It extends axially in that direction. Each tab contains an angled wedge face. Annular color - The inner diameter of the detent notch and detent plunger that define the bias surface One of them is placed on top of it.

[0041] The hand switch and its features include additional features and modifications as described below. See, such features and modifications are included separately or in combination with each other, and so Such combinations are restricted only by mutual exclusivity.

[0042] Each tab on the hand switch may include an angled wedge-shaped surface.

[0043] Each tab of the hand switch may have a tab centerline that makes the tab substantially symmetrical. It may have two angled wedge surfaces.

[0044] The centerlines of both tabs of the hand switch are below the mounting shaft, and the pivot of the mounting shaft It could be a predetermined distance on the opposite side of the axis.

[0045] The collar of the hand switch may have a detent plunger located within the collar.

[0046] The safety switch of the hand switch can be slidably positioned inside the lever.

[0047] The hand switch may have a lever extension that is slidably positioned on the outside of the lever.

[0048] Surgical tools include electric surgical handpieces and hand switches. The handpiece includes a handpiece housing and a magnetic field sensor that extend in the longitudinal direction. A handpiece housing that extends in a direction can extend along the housing axis. The field sensor can be placed inside the housing. The hand switch is mounted on the base. It includes a long, slender lever, a spring, and a safety switch. The mounting base defines the pivot axis and the annular Includes a collar. The annular collar specifies a mounting axis that is at least substantially perpendicular to the direction of the pivot axis. The annular collar is for a sliding position on the proximal end of the handpiece in the direction of the mounting axis. It is sized to fit the mounting base. The elongated lever is pivotably attached to the mounting base at its proximal end. It is connected. The spring is between the bases. The spring biases the lever around the pivot axis. The safety switch is slidably positioned on the lever. The mounting base is color It further comprises a first positioning tab and a second positioning tab. Each tab is the main color It extends axially distally from the main part. Each tab includes an angled wedge surface. The mounting base is positioned within the inner diameter of the annular collar, defining the bias surface. It further comprises either a tent notch or a detent plunger.

[0049] Surgical tools and their characteristics include additional features and modifications as described below. Such features and modifications are included separately or in combination with each other, such Combinations are restricted only by mutual exclusivity.

[0050] The hand switch may have tabs that include angled wedge surfaces.

[0051] Each tab of the hand switch may have a tab centerline that makes the tab substantially symmetrical. It may have two angled wedge surfaces.

[0052] The centerlines of both tabs of the hand switch are below the mounting shaft, and the pivot of the mounting shaft It could be a predetermined distance on the opposite side of the axis.

[0053] The collar of the hand switch may have a detent plunger located within the collar.

[0054] The safety switch of the hand switch can be slidably positioned inside the lever.

[0055] The hand switch may have a lever extension that is slidably positioned on the outside of the lever.

[0056] Surgical tools may further include two receptor channels and multiple contact points. The housing may contain two receptor channels. These channels may form at the proximal end of the housing. The receptor channel may be defined, at least partially, by the surrounding wall, and the channel may be housing It extends axially away from the proximal end of the ring towards the distal end of the housing. The first of each channel One side can define its first channel contact point. The second side of each channel The surface defines its second channel contact point. Each positioning tab has a second predetermined distal direction The length can be extended. Each tab has a first side that defines its first tab contact point and , and may include a second side defining the second tab contact point. The collar engages with the housing. When this is happening, each first tab contact point is in contact with the first channel contact point of each channel. They are in contact, and each second tab contact point is in contact with the second channel contact point of each channel. One of the inclined grooves defining the detent plunger and the bias surface is It can be placed inside the ra.

[0057] Surgical tools and their characteristics include additional features and modifications as described below. Such features and modifications are included separately or in combination with each other, such Combinations are restricted only by mutual exclusivity.

[0058] Surgical tools may include notches within the housing that define the bias surface, and detent points The runner can be positioned on the inner diameter of the collar.

[0059] Surgical tools may include biased surfaces that are partially distally facing, such as those of tabs and channels. When their contact points are engaged, the bias surface can be engaged by the plunger.

[0060] An electrical connector for surgical tools, wherein the connector has a cable end receiver that extends axially. It comprises a receiver and an outer sleeve. The cable end receiver, which extends axially, then has an inner sleeve. It has a lever and pin holder. The inner sleeve has an elastic clip containing a first retaining wedge. Includes pins. The pin holder is fixed to the inner sleeve, and the core and fixed to the core It has multiple pins. The outer sleeve slides over substantially the entire cable end receiver. The outer sleeve includes a first window for receiving the retaining wedge. The outer sleeve has a sliding range relative to the receiver. The sliding range is... From the latch position where the wedge is essentially aligned axially with the window, the wedge moves towards the window. It extends to a release position that is offset axially from its alignment with the dow.

[0061] Electrical cable assemblies for use with surgical tools include cables and connectors. Includes a connector. The cable contains multiple conductors. The connector is a cable end receiver that extends axially. Includes receiver and outer sleeve. The axially extending cable end receiver has an inner sleeve and pin Includes holder. The inner sleeve includes an elastic clip containing a first retaining wedge. Pinhole The holder consists of a core and several pins fixed to the core. The pin holder has an inner three-pronged design. It is fixed in place and completely positioned inside. The outer sleeve is the cable end receiver. The entire bar is slidably supported. The outer sleeve has a first that receives the retaining wedge. A window is included. The outer sleeve has a sliding range relative to the receiver. That range is from the latch position where the wedge is substantially axially aligned with the window. The wedge extends to a release position that is offset axially from its alignment with the window. Multiple conductors are electrically connected to multiple pins.

[0062] The surgical system includes the handpiece and cable assembly. The handpiece is It comprises a wedge and an electric drive motor located within it. The cable assembly is Includes cable and connector. The cable contains multiple conductors. The connector has a cable that extends axially. Includes cable end receiver and outer sleeve. The axially extending cable end receiver has an inner sleeve. Includes a leaf and pin holder. The inner sleeve has an elastic clip containing the first retaining wedge. Includes. The pin holder comprises a core and several pins fixed to the core. Pin holder It is fixed to the inner sleeve and is completely contained within it. The outer sleeve is The cable end receiver is slidably received over substantially the entire length. The outer sleeve has a retaining wedge. It includes a first window to receive. The outer sleeve is slidable relative to the receiver. It has a range, and that range is where the wedge is substantially aligned axially with the window. From the strike position, the wedge is offset axially from its alignment with the window. It extends to a free position. Multiple conductors are electrically connected to multiple pins.

[0063] The electrical connectors, electrical cable assemblies, and those of the surgical system referred to above. It can be improved, or modified, as described below. Such improvements or modifications Positives are not limited to a range of mutually exclusive elements, and can be combined with any of the others. .

[0064] The cable end receiver has a bushing positioned between the pin holder and the inner sleeve. It would be wise to be prepared for further improvements.

[0065] The bushing has a cable engagement foot (ca) that extends radially inward for cable engagement. This may include (ble engagement feet).

[0066] The bushing can be positioned entirely within the inner sleeve.

[0067] The release position of the outer sleeve relative to the cable end receiver is the latch position of the outer sleeve. In contrast, it can be proximal.

[0068] In the open position, the ramp surface of the wedge is in contact with the second surface of the window. They may be aligned, and the wedge's stopping surface may be spaced apart from the first surface of the window. .

[0069] The cable end receiver is positioned on the inner sleeve and secured therein by a screw-in mechanism. It may further include a retaining nut.

[0070] The outer sleeve may have a raised alignment surface.

[0071] The elastic clip may further include a beam fixed to an inner sleeve at both ends, and a wedge, It can be fixed to the beam between those ends.

[0072] The inner sleeve may further include a second wedge, and the outer sleeve may include a second window. It may include.

[0073] Relative orientation and direction (e.g., distal, proximal, upper, lower, bottom, posterior, anterior, rear) (back, outboard, inboard, inside, outside, side, left, right) are limitations to this description. Although shown, this is when describing at least one embodiment of the described structure. For the convenience of the reader, such examples are presented from the user's perspective. It is possible.

[0074] The elements shown can take many different forms, and there can be multiple and / or alternative configurations. It may include elements and equipment. The exemplary components shown are not limited to those shown. This was not intended. In fact, it uses additional or alternative components and / or implementations. It is possible. Furthermore, the components shown are not explicitly stated as such. As far as is concerned, they are not necessarily drawn to a consistent scale. [Brief explanation of the drawing]

[0075] [Figure 1] This is a perspective view of a hand switch positioned on a handpiece, with the handpiece and hand switch engaged by a connector. [Figure 2] Figure 1 is an exploded view of the hand switch, handpiece, and connector. [Figure 3A] Figure 2 is a perspective view of the lever of the hand switch with the lever extension fully extended. [Figure 3B] This is a second perspective view of the hand switch shown in Figure 2 with the lever extension fully retracted. [Figure 4] Figure 2 is an exploded view of the hand switch. [Figure 5A] Figure 4 is a first perspective view of the color of the hand switch. [Figure 5B] Figure 5A is a second color perspective view. [Figure 5C]Figure 5A is a color top view. [Figure 5D] This is a color right side view of Figure 5A. [Figure 5E] This is a color front view of Figure 5A. [Figure 5F] Figure 5A is a color view of the bottom and top. [Figure 5G] This is a color cross-sectional view of Figure 5A, taken from the direction of arrow 5G in Figure 5E. [Figure 6A] Figure 2 is a perspective view of the handpiece housing. [Figure 6B] Figure 6A is a right side view of a portion of the handpiece housing. [Figure 6C] Figure 6A is a left side view of a portion of the handpiece housing. [Figure 6D] Figure 6B is an enlarged cross-sectional view of a portion of the housing within circle 6D. [Figure 7] This is a cross-sectional view of the lever and housing in Figure 1, passing through plane 7 as seen from the direction of arrow 7A. [Figure 8A] Figure 4 is a perspective view of the lever of the hand switch. [Figure 8B] Figure 8A is a top view of the lever. [Figure 8C] Figure 8A is a bottom view of the lever. [Figure 8D] Figure 8A is a right side view of the lever. [Figure 8E] This is a cross-sectional view of the lever in Figure 8A, seen from the direction of arrow 8E in Figure 8B. [Figure 8F] Figure 8A is a front view of the lever. [Figure 9A] Figure 4 is a perspective view of the lever extension of the hand switch. [Figure 9B] Figure 9A is a top view of the lever extension. [Figure 9C] Figure 9A is a right side view of the lever extension. [Figure 9D] Figure 9A is a bottom view of the lever extension. [Figure 9E] This is a cross-sectional view of the lever extension in Figure 9A, as seen from the direction of arrow 9E in Figure 9D. [Figure 9F] Figure 9A is a rear view of the lever extension. [Figure 10A] Figure 4 is a perspective view of the switch of the hand switch. [Figure 10B] Figure 10A is a top view of the switch. [Figure 10C] This is a cross-sectional view of the switch in Figure 10A, seen from the direction of arrow 10C in Figure 10B. [Figure 10D] This is a cross-sectional view of the switch in Figure 10A, seen from the direction of arrow 10D in Figure 10B. [Figure 11] This is an exploded view of the first alternative interface between the handpiece and the hand switch. [Figure 12A] This is a perspective view of the handpiece housing showing the housing portion of the second alternative interface between the handpiece and the hand switch. [Figure 12B] Figure 12A is a perspective view of the handpiece housing, in which the installed hand switch indicates a second alternative interface between the handpiece and the hand switch. [Figure 13A] A perspective view of the handpiece and handpiece housing, showing the housing portion of a third alternative interface between the handpiece and the hand switch. [Figure 13B] Figure 13A is a perspective view of the handpiece and handpiece housing, in which the installed hand switch indicates a third alternative interface between the handpiece and the hand switch. [Figure 14A] This is a perspective view of an alternative hand switch. [Figure 14B] Figure 14A is an exploded perspective view of the hand switch. [Figure 14C] Figure 14A is a cross-sectional side view of the hand switch. [Figure 15A] Figure 14A is a front view of the upper right lever of the hand switch. [Figure 15B] Figure 14A is a front perspective view of the hand switch lever, showing the lower left. [Figure 16]Figure 14A is a front perspective view of the lower left of the lever extension of the hand switch. [Figure 17] Figure 14A is a perspective view of the lower left rear of the hand switch. [Figure 18A] This is a perspective view of the handpiece and connector at the connection point. [Figure 18B] Figure 18A is a perspective view of the handpiece and connector in the open position. [Figure 19] Figure 18B is an exploded view of the connector. [Figure 20A] Figure 18A is a cross-sectional side view of the handpiece and connector at a first position where the plane 20 passes through the plane 20 when viewed from the direction of arrow 20A, with the plane 20 passing through the central axis of the connector. [Figure 20B] This is a segmented view of a part of the connector shown in box 20B of Figure 20A, where the connector is in the second position. [Figure 20C] This is a cross-sectional side view of connector 18B, where the plane 20' passes through the central axis of the connector, at a first position where the plane 20' passes through the plane when viewed from the direction of arrow 20C. [Figure 21] Figure 20C is a cross-sectional side view of the connector with a cable installed. [Figure 22] Figure 18B is a perspective view of the cable assembly including the connector. [Figure 23] Figure 18A is a perspective view of the surgical system, including the connector and handpiece. [Modes for carrying out the invention]

[0076] As shown in Figures 1-23, the exemplary surgical tool 50 is an exemplary hand switch Includes 52, an exemplary electric surgical handpiece 54, and an exemplary electrical connector 56. The exemplary hand switch 52 is an exemplary longitudinal of the exemplary electric surgical handpiece 54. It can be selectively attached to the handpiece housing 58 which extends in the direction. Handpiece 54 An exemplary connector 56, which can be selectively connected to the proximal end 60, is mounted on the housing 58. It can help hold switch 52 when connected to handpiece 54. Connector 56 is connected to the handpiece 54 via the electrical cable 51 (shown by the dotted line in Figure 1). To electrically connect them to console 53 and communicate control signals and power between them. It is possible.

[0077] The cable 51 and housing 58 contain, for example, a signal conductor 55 such as a wire, and an electric It may include a force conductor 57. The signal conductor 55 is located within the housing 58, and the magnetic field sensor 59 and can be electrically connected to a controller 63 which may be located within the console 53. The force conductor 57 can be connected to the drive motor 61 located inside the housing. The motor 61 can be powered by any conventional means, such as electricity or pneumatics. The power conductor 57 may be a wire or a pneumatic hose, but is not limited to these examples. Each of 5 and 57 is connected at the proximal end of connector 56 or the proximal end 60 of handpiece 54. It can consist of a housing internal portion and a cable internal portion that can be connected. The controller 63 responds to signals from sensors, such as the magnetic field sensor 59, and drives electrically The controller 63 can be programmed to control the power to the motor 61. It may also be electrically connected to other sensors (not shown), which may be switches, for example. potentially includes a user-controlled foot switch (not shown). Alternatively, handpiece 5 4 may include a battery as a power source and may communicate signals wirelessly with console 53. Alternatively, connector 56 could be a wireless connector, for batteries and wireless communication devices. For example, it may include one or both of the dongles.

[0078] The hand switch 52 is pivotable on an exemplary mounting base 62. An exemplary lever 64 connected to the mounting base 62 and a lever 64 positioned between the mounting base 62 and the lever 64. An exemplary switch biasing bar 64 away from the handpiece housing 58. Spring 66, safety switch 68, i.e., a slidable rod on lever 64 Lock release - Lock switch 68, and the lever 64, which is also slidably positioned on the lever. - Including extension 70.

[0079] The base 62 and handpiece housing 58 are exemplary alignment interfaces. The safety switch 68 and lever 64 are exemplary safety switches. The interface 74 is defined collaboratively. The lever extension 70 and the lever 64 are, for example, The exemplary extension interface 76 is defined collaboratively. Lever 64, lever extension 70, Each of the switch 68, base 62, and housing 58 is connected to interface 72 This includes features that define 74 and 76, which are described in more detail below. The exemplary interfaces 72, 74, and 76 are described in more detail below. It is possible to define one or more relative positions between each component.

[0080] The mounting base 62 may include a first lug 78A and a second lug 78B. 8A and 78B define the receiving pocket 80. The connector 56 is positioned with the handpiece 54. Proximal positioning can be useful as a visual alignment cue for the user when aligning. The tab 82 can be provided at the distal end of the mounting base 62, and at the proximal end of the pocket 80. Closure can be defined.

[0081] The ear portions 78A and 78B are the first ear portion opening 84A and the second ear portion opening 84B, respectively. The openings 84A and 84B may be penetrated by the pivots defined by the openings 84A and 84B. They are aligned with each other on the drive shaft 86.

[0082] The mounting base 62 is also part of the alignment interface 72, and is mounted It may include an exemplary annular collar 88 that defines the axis 90. The collar 88 is centered on the axis 90. It may have an inner diameter D1 that defines the annular mounting surface 91. The collar 88 is of the housing 58 The proximal end 60 can be sized to accommodate a removable and sliding receiver. An exemplary nominal value for D1 may be approximately 20 mm (0.80 inches). Pivot shaft 86 and The mounting shaft 90 does not intersect, but both shafts 86, as shown in Figure 5C, for example. When viewed from a direction perpendicular to 90 degrees, they can be perpendicular to each other.

[0083] An exemplary first positioning tab 92A, i.e., the first color tab 92A, and an exemplary first positioning tab 92A. The second positioning tab 92B, i.e., the second color tab 92B, is located at the main distal edge. 94, that is, from the annular portion 95 of the collar 88, each tab 9 is in a direction parallel to the mounting shaft 90. It has an axial length L1 that extends to the tips 96A and 96B of 2A and 92B. The nominal size may be approximately 15 mm (0.60 inches). Tabs 92A and 92B are, respectively, Color 88 may have a substantially trapezoidal shape when viewed from the side. Tabs 92A and 92B are As shown in Figure 5E, when viewed from the distal end of the collar 88, it is formed in an arc shape, and the collar 88 It is aligned with a certain diameter D1.

[0084] Tabs 92A and 92B are, respectively, centerlines 98A of tabs 92A and 92B. It may be substantially symmetric with respect to 98B. For example, the first tab 92A is, for example, the first , namely the upper wedge surface 100A1 and the second, namely the lower wedge surface 100A2 and may have exemplary tapered sides separated by a tab wedge angle α1, Each of the rusted surfaces 100A1 and 100A2 is divided at an angle of α1 / 2 from the center line 98A. They are separated. An example nominal value for α1 may be approximately 32°, and α1 / 2 is approximately 16°. Therefore, both wedge surfaces 100A1 and 100A2 are angled with respect to the center line 98A. It is attached. The distance from the distal edge 94 to the tip 96A, that is, as described above. The axial length of tab 92A is length L1. Tabs 92A and 92B have their respective lengths The inner diameter D1 can be maintained in relation to this.

[0085] The second tab 92B may be similarly formed and positioned on the collar 88, respectively, at the top It may include the lower wedge surfaces 100B1 and 100B2. Both centerlines 98A and 98B The method is best shown in Figures 5D and 5G, with a parallel distance below the mounting shaft 90. It can be placed at B1. The typical nominal value of B1 is approximately 2.5 mm (0.10 inches). It is possible. The wedge surfaces 100A1, 100A2, 100B1, and 100B2 can each be taken It is angled in the sense that it is positioned at a certain angle relative to the mounting shaft 90.

[0086] Tabs 92A and 92B also have wedge faces 100A1, 100A2, 100B1, and 100B There is one nominal tab contact point for each of the two, 101A1, 101A2, 101B1, 101 B2 can be partially defined. Nominal tab contact points 101A1, 101A2, 101B1, 10 The role of 1B2 will be explained in more detail below.

[0087] The mounting base 62 is an exemplary spring-type ball-base detent plunger 104, That is, the plastic to receive the color detent plunger 104, which is best shown in Figure 7. It may further include a jack receiving opening 102, which is part of the alignment interface 72. The part includes. The receiving opening 102 may include a counterbore 106.

[0088] Detent plunger 104 is available for commercial purchase. The following description of YA104 is illustrative and applicable to ball plungers referenced later. It may be possible. An example plunger 104 has a closed end 110 and an open end 112. It may include a sleeve 108 of substantially constant diameter made of steel. The closed end 110 is a vent It may include an opening. Durable plunger ball 114 (e.g., steel, ceramic) It is placed inside the sleeve 108 and extends from the open end 112, that is, it protrudes from the closed end 112. It can be placed within the sleeve 108 between the ball 114 and the closing end 110. It is equipped with a compression coil plunger spring 116. The open end 112 is a ball 114 and It provides an inner lip 118 to trap the spring 116 inside, and the outer lip 120 therein The outer lip 120 can be formed to provide the receiving opening 102 of the sleeve 108. It can be used to restrict the movement of the outer lip 120. The counterbore 106 accommodates the outer lip 120. The depth and diameter of the opening may be such that the plunger 104 is substantially connected to the mounting surface 91 of the collar 88. This allows the ball 114 to be flush with the mounting surface 91, but the collar 8 It can extend through the inner diameter D1 of 8. The plunger 104 is the sleeve, coil It has been described as including a ball, but the described structure is merely an example. Yes, alternative plungers can be used. For example, the plunger can be a ball-shaped plunger. Instead of plunger projectiles, bullet-shaped plunger projectiles can be used. Or, Instead of a ball, you can also use a double-ended cylinder with one or both ends curved. Alternatively, the plunger may use a spring type other than a coil spring, such as a leaf spring, The projectile can be displaced. Alternatively, the plunger mainly consists of a spring and A curved plate that functions as both a projectile and a recessed part when aligned. It can be equipped with a spring. The curved leaf spring can bend or cantilevered. The plunger is a separate part. In addition to the spring and projectile, a dome spring may also be included as an alternative. The dome spring is compressible. In this state, it is elastically and substantially elastically deflected at the apex, inverting the apex portion of the dome. That partial hemispherical shape, that is, the dome shape when placed on a detent notch. It may be in the form of a self-restoring, elastic, thin-walled partial hemisphere. The plunger is Alternatively, the projectile can be directed in a desired direction, depending on the magnetic or electromagnetic properties of its components. It can be biased and engaged with the detent notch.

[0089] To facilitate the formation of the receiving opening 102 and the counterbore 106, the bottom 12 of the collar 88 4. Align the detent plunger with the receiving opening 102 and the counterbore 106 on the opposite side. An access hole 122 can be formed to receive and install the 104 in the opening 102. Ranja 104, through an interference fit, i.e., press-fit relationship between them, receives opening 1 It is held within 02. Part of the receiving opening 102 is held by the plunger 104 by the receiving opening 102. To facilitate aligned reception, even if it is larger than the outer diameter of plunger 104 Good. The access hole 122 is chamfered to facilitate the passage of the plunger 104. It may include (not shown). The plunger 104 is shown in the opening 102 of Figure 7. .

[0090] The alignment interface 72 includes annular portion 95 and tabs 92A, 92B and Color 88 including plunger 104 and handpieces best shown in Figures 6A-6D This may include complementary features on 58. Such complementary features are found in the first tab 9. First tab-receptor channel 128A to receive 2A and the second tab 92B, respectively. and a second tab-receptor channel 128B, as well as a bit for engagement by plunger 104 The bias surface 130 is provided by the detent notch 132 that defines the as surface 130. It may include. Tab receptor channels 128A and 128B are aligned with color tabs 92A and 92B. It is positioned on the housing 58 to receive both.

[0091] The handpiece housing 58 has a grip surface 134 and a relatively recessed engagement surface 136 Both are included. The recessed engagement surface 136 is located proximal to the grip surface 134. Peripheral wall 1 38 defines the boundary between the two surfaces 134 and 136 and connects them. Surface 134 may have a first surface diameter D2. An exemplary nominal value of D2 is approximately 22 mm. It may be 0.90 inches. The engaging surface 136 may have a smaller second surface diameter D3. The typical nominal value of D3 can be approximately 20 mm (0.80 inches). The diameter D2 is approximately Both D3 and D3 are centered on the housing axis 140 along which the housing 58 extends. It is possible. Given exemplary values ​​for D2 and D3, the exemplary height of the peripheral wall 138 The H1 can be approximately 1 mm (0.04 inches).

[0092] The diameter D3 of the engaging surface 136 is smaller than the inner diameter D1 of the collar 88, thereby the surface 13 6, and collar 88, the housing shaft 140 is substantially aligned with the mounting shaft 90. Sometimes, a collar 88 is slidably positioned on the proximal end of the housing 58 of the handpiece 54. It is sized to fit. The hand switch 52 is connected to the housing 58. In this case, the housing shaft 140 may coincide with the mounting shaft 90. As shown in Figure 5C, The mounting shaft 90 is perpendicular to the direction of the pivot shaft 86. Therefore, the housing shaft 140 is When the hand switch 52 is coupled to the housing 58, it is also perpendicular to the pivot axis 86. It can be straight. The peripheral wall 138 extends radially outward with respect to the mounting shaft 90, and the engagement surface 1 36 can be connected to the grip surface 134. The peripheral wall 138 is the first tab receiving channel Channel 128A, that is, the first channel 128A and the second tab receptor channel 128B, In other words, a second channel 128B can be defined.

[0093] The first channel 128A may have an axial length L2. More specifically, the tip 96 Channel terminal 142A, similar to A, extends from the proximal edge 144 of the circumferential wall 138 at a distance of length L2. It is arranged in a similar manner. The second channel 128B may also have a length L2 and be similar to the tip 96B. The channel end 142B is positioned at a distance of length L2 from the proximal edge 144 of the peripheral wall 138. It is positioned. An example nominal value of L2 can be approximately 15 mm (0.60 inches). The axial length L2 of channels 128A and 128B is equal to the axial length L1 of tabs 92A and 92B. They may be substantially equal. The first channel 128A has upper and lower wedge surfaces 146 It has A1 and 146A2. The second channel 128B has the corresponding upper and lower grass It has wedge surfaces 146B1 and 146B2. The upper and lower wedge surfaces of both channels are There is a groove angle α2 between them. Angle α2 may be substantially equal to angle α1. An exemplary nominal value for α2 can be approximately 34°.

[0094] Channel 128A is actually related to the channel centerline 147A of tab-receptor channel 128A. It can be qualitatively symmetrical. For example, the first channel 128A is α2 / from the center line 147A. The upper wedge surface 146A1 and the lower wedge surface 146A2 are separated at an angle of 2. It may have the following characteristics. Similarly, the second channel 128B has α2 from its channel centerline 147B. The upper wedge surface 146B1 and its lower wedge surface 146B are separated by an angle of 2. It may have 2. As described above, an exemplary nominal value of α2 may be 34°, and α2 / 2 is approximately 1 It is 7°. Therefore, the wedge surfaces 146A1 and 146A2 are relative to the center line 147A. The angle is set, and therefore the wedge surfaces 146B1 and 146B2 are aligned with the center line 14 It is angled relative to 7B. The channel centerline 147A is shown in Figures 6B and 6C. As is most commonly shown, it can be positioned at a distance B2 below the mounting shaft 90. The value of B2 is The value of B1 may be substantially equal to that of B2, and an example nominal value of B2 is approximately 2.5 mm (0.1 It is 0 inches.

[0095] Channel wedge surfaces 146A1 and 146A2 are tab wedge surfaces 100A1 and 100A Along with 2, the nominal channel contact point 148A on the channel wedge surfaces 146A1 and 146A2. 1. Specify 148A2, and the tab contact point 101A on the tab wedge surfaces 100A1 and 100A2. 1 and 101A2 are defined. The engagement position of the hand switch 52 on the housing 58 The wedge surfaces 100A1 and 100A2 have tab contact points 101A1 and 101A2, respectively. Channel contact points 148A1 and 148A2 are in contact with the channel wedge surface 146A1, Engages with 146A2. On the wedge surfaces 146B1, 146B2 of the second channel 128B Channel contact points 148B1 and 148B2 are similar to tab contact point 10 of the second tab 92B. This is defined by the engagement of wedge surfaces 146B1 and 146B2 with 1B1 and 101B2. Such engagements involve the tip 96A, 96B being the end 142A of the first channel 128A or the second Before the terminal 142B of channel 128B engages with the proximal edge 144 of color 88 This occurs either before engagement with the distal margin 94.

[0096] The housing 58 may have a diamond-like carbon ("DLC") coating. DLC coating provides a coating that offers wear resistance and a lower coefficient of friction on the surface. It can provide useful information.

[0097] The color detent plunger 104 and detent notch 132 are mounted on the base Detent 149 is defined collaboratively. Detent 149 is defined as how the hand switch 52 is located. Hold on the 58 and the tab wedge surfaces 100A1, 100A2, 100B1, 100B2 to the first channel wedge surfaces 146A1, 146A2 and the second channel wedge surface 146 It may function to bias B1 and 146B2. The detent notch 132 is It may be formed as a recess within the engagement surface 136 and may be symmetric with respect to the notch center line 151. Notch 132 does not need to be symmetrical, but if it is formed by a rotary tool, such as a mill, then it should be symmetrical. It can be called. The bias surface 130 of the notch 132 is related to the mounting shaft 90. It is positioned at an angle α3. The exemplary nominal value of α3 relative to the housing axis 140 is approximately 1 It can be 9°. With the mounting base 62 installed on the housing 58, the plunger The ball 114 is partially supported by the notch 132, as shown in Figure 7. The deflection of the plunger spring 116 within the sleeve 108 and relative to the ball 114 is due to ball 1 Press 14 against the bias surface 130, then the tab wedge surfaces 100A1 and 100A2 Press 100B1 and 100B2, and at each contact point the first channel wedge surface 146 A1, 146A2 and the second channel wedge surfaces 146B1, 146B2 engage with each other.

[0098] The bias surface 130 is engaged by the plunger 104 with a detent notch 132 It is located at the proximal end. The notch may also be 90 degrees with respect to the housing axis 140, or The retaining edge 150 may be arc-shaped, or it may be at an angle greater than angle α3 and less than 90 degrees. It may include. The retaining edge 150 is necessary to remove the hand switch 52 from the housing 58. This allows for an advantageous increase in axial force. The edge 150 is connected to the plunger of the ball 114. The spring 116 is suddenly displaced. The increase in displacement also increases the force on the ball 114. This is converted into an increase in force in the axial direction, i.e., parallel to the housing axis 140. This could result in the unintended removal of the hand switch 52 from the housing 58. To resist something.

[0099] Tabs 92A, 92B and channels 128A, 128B are connected to hand switch 52 and how This facilitates proper alignment with the 58, and then the housing 5 of the hand switch 52. To facilitate installation to 8. Detent 149, tabs 92A, 92B, and channel 12 The combination of 8A and 128B properly positions the hand switch 52 within the housing 58. In addition, the hand switch 52 is installed on top of it, and the connector 56 is connected to the housing 58. The hand switch 52 can be held on the housing 58 before proceeding. Exemplary force required to remove the hand switch 52 from the housing 58 against force 149 This force can range from 27 to 36 Newtons (6 to 8 pounds).

[0100] As described above, the elongated lever 64 is pivotably connected to the mounting base 62. The lever 64 is substantially in the direction of the pivot axis 86, as is best shown in Figure 8C. A lever shaft 152 perpendicular to the target is defined. The lever 64 is mounted on the pivot shaft 86 to the base 62. It includes a proximal end 154 pivotably connected to the proximal end 154 and a distal end 156 opposite the proximal end 154. The lever 64 can be pivoted to the base 62 using a pivot pin 155 centered on the pivot axis 86. It can be connected to the lever 64. The lever 64 extends approximately 92 mm (3.6 inches) from the distal end 156. The first track 158, that is, The switch track is located at 160 inside the lever. 160 inside lever 64 is the handle. When installed in the piece housing 58, it substantially faces the housing axis 140. This is possible. The second track 162, i.e., the extension track, is inside the lever 64 160 and On the opposite side, outside 164, both tracks 158 and 162 are substantially connected to the lever axis 152. It is parallel to the target. The first track 158 is parallel to the second track 162 at the installation position. It is positioned so that it is always close to the lever shaft 152.

[0101] The lever 64 has a width W1 between it and the opposing first and second sides 165A and 165B. It is possible. An example value for width W1 could be approximately 10 mm (0.40 inches). Side 165 A, 165B is positioned between the inner 160 and the outer 164, connecting them. Lever 64 is biased by spring 66 around pivot axis 86 relative to base 62. The safety switch 68 is slidably positioned on the first track 158. Lever extension The long section 70 is slidably positioned on the second track 162. The lever 64 is located at the top of the track. Like the Zing 58, it may also feature a DLC coating.

[0102] Lever 64 is shown in Figure 8B with its outer side 164 and second track 162, distal end Near 156, there are opposing first and second position indicator wings 166, respectively. It has wings A and 166B. Wings 166A and 166B are described in more detail below. It is positioned to align with the indicator line 168 on the switch 68. Wings 166A and 166B are icons indicating the corresponding switch locations. They may be labeled as 167A, 167B, for example, locked, i.e., closed Nanjing The locked icon 167A in the shape of a schematic diagram of a lock indicates that it is secure, i.e., not running. The icon may indicate a state where the padlock is not locked, i.e., open. Icon 167B may indicate the running state. Instead of the padlock icons 167A and 167B... Other markings can be used. For example, "RUN" and "SAFE" Words can be used as icons. Unlocked icon 167B is locked It can be positioned closer to the pivot axis 86 than icon 167A.

[0103] The lever extension detent plunger 172, that is, to receive the extension plunger 172 The extension plunger opening 170 may be formed on the outer lever 64 164. 72 may include part of the lever extension multi-position detent. The extension plunger 172 is spring It can be an equation and can be formed as a switch plunger 198.

[0104] As shown in Figures 8B and 8C, the pin opening 176 for the extension movement limiting pin 178 is far It is positioned close to the position end 156, and maximizes the extension of the extension portion 70 relative to the lever 64. The pin opening 176 can extend through the lever 64. Proximal end 180 This involves extending the distance L4 from the proximal end 154 of the lever to the end wall 182 of the proximal end 180. This is possible. An example value for the distance, or length, L4, is approximately 18 mm (0.70 inches). It is possible. The proximal end 180 can accommodate a hinge pocket 184 below it, as shown in the figure. As best shown in Figures 8C and 8E, when the extension 70 is installed on the lever 64, The outer surface of the bar extension 70, that is, the proximal end 180 which is aligned with the contact surface 188, is flush with the surface. The outer surface 186 can be further defined. The end wall 182 is flush with the distal end of the outer surface 186. It can be defined.

[0105] In Figure 8C, the lever 64 presents its inner 160 and the first track 158. The unlabeled sides of wings 166A and 166B are shown. The proximal end 154 is A hinge pocket 184 may be observed. At the distal end 192, at the distal end 156, tapering An end face 194 is provided. The end face 194 as seen from the side, as shown in Figures 8D and 8E. It can extend in a downward, proximal direction at an angle α4. Angle α4 can be approximately 45°. . Switch detent plunger 198, that is, safety switch plunger 198, Alternatively, a switch plunger to receive what is called a switch plunger 198 The opening 196 can be formed in the lever 64 on the inside 160. The switch plunger 198 is , may include part of a multi-position switch detent, may be spring-loaded, color detent plan It can be formed as shown in ja 104. Switch plunger 198 is a color detent plug. It can be shorter than the Nja 104.

[0106] An opening 176 for the extension movement limiting pin 178 is also shown, and the through opening 176 is for the pin 178 To facilitate installation. Alternatively, the opening 176 can be fully opened through the lever 64 to the inside 160. It may be a blind hole that does not extend in any direction.

[0107] The inner side 160 of the distal end 192 is also a magnet holder, i.e., the switch magnet 20 It may include a switch moving slot 202 that receives a magnet housing 204 that receives 6, and these Both are integrated into switch 68 and extend upward from there. Example of slot 202. The typical length L5 can be approximately 15 mm (0.60 inches). An example of slot 202. The width W2 can be approximately 5 mm (0.20 inches). Exemplary depth H2 of slot 202. It can be approximately 3 mm (0.12 inches). Switch 68, switch magnet 206, The magnet housing 204 is shown in Figure 4. Movement of switch 68 relative to lever 64. The range can be defined by the length L5 of slot 202.

[0108] The side view in Figure 8D and the cross-sectional side view in Figure 8E show that the distal end 192 of the lever 64 is located at the lever The distal end may have a thickness H3 that is greater than the thickness H4 of the central part 207 of 64. This indicates that the example value for the thickness H3 of the distal end 192 is approximately 5 mm (0.20 inches). It is possible that an example value for the central thickness H4 could be approximately 3 mm (0.12 inches). As indicated by the thickness H3, the distal end 192 is close to the distal end 156 of the lever 64. The length L6 can be extended in the lateral direction. An example nominal value of L6 is approximately 40 mm (1.6 It could be in inches.

[0109] Both tracks 158 and 162 can be seen in Figures 8D and 8F. The second track 162 can be seen in Figure 8B, and the first track 158 can be seen in Figure 8C. You can see it.

[0110] The first track 158, that is, the switch track 158, can be seen respectively in FIGS. 8D and 8F. The first track 158 is included in the distal end 192 of the inner side 160 The first track 158 may be in the shape of a T-shaped track, that is, a T-track Alternatively, the track 158 may present, for example, a dovetail, a T-slot, a rectangular or circular track or slot, or any other suitable shape, and may have a different profile The length L7 of the first track 158 (an exemplary length is about 38 mm (1.5 inches)) may be shorter than the length L6 of the distal end 192 having the track end 208 The track end 208 may function as a switch movement stop for the safety switch 68 in the unlocked position, that is, the enabled or activated position. Alternatively, the switch movement stop for the safety switch 68 in the unlocked position may be provided by the proximal end 210 of the slot 202 when the magnet housing 204 engages the proximal end 210 of the slot 202 the movement of the switch 68 relative to the lever 64 is terminated. Similarly, the switch movement stop for the locked position of the switch 68, that is, the safe or deactivated position, may be provided by the distal end 212 of the slot 202 when the magnet housing 204 engages the distal end 212 of the slot 202 the movement of the switch 68 relative to the lever 64 is terminated.

[0111] The second track 162, that is, the extension track 162, can be seen respectively in FIGS. 8B, 8D and 8F. The second track 162 can extend for a length L8 from the distal end 156 of the lever to the end wall 182 of the proximal end 180 of the outer side 164. An example of the length L8 ​An exemplary value may be approximately 75 mm (3.0 inches). The second track 162 may also be T -shaped track, that is, in the shape of a T-track. Similar to the first track 158 , the second track 162 may alternatively have different profiles, for example, a dovetail groove , a T-slot, or a circular track or slot, or provide any other suitable shape . The end wall 182 may function as a movement stop for the extension portion 70 in the retracted position . Alternatively, the extension movement stop for the retracted position may be provided by the pin slot 216 of the extension portion 70 at the distal end 210 thereof. Therefore, the movement of the extension portion 70 to the retracted position may be terminated by either the engagement between the proximal end 218 of the extension portion 70 and the end wall 182, or the engagement of the distal end 210 of the pin slot 216 by the extension movement restriction pin 178. Similarly, the extension movement stop for the extension portion 70 in the fully extended position may be provided by the proximal end 218 of the slot 216, and when the extension movement restriction pin 178 engages the proximal end 2 18 of the slot 216, the movement of the extension portion 70 relative to the lever 64 is terminated. Alternatively, the pin 1 78 may be disposed on the extension portion 70, and the slot 216 may be disposed on the lever 64.

[0112] When assembled to the base 62, the hinge pocket 184 respectively defines the pivot shaft 86 or is at least aligned with the pivot shaft 86, and includes opposed first and second side members 220A, 220B respectively having aligned coaxial first and second openings 222A, 222B. Alternatively, the proximal end portion 180 does not have the pocket 184 and may be formed as a solid mass provided with a single opening passing through the pivot shaft 86. The opening 222 ​A and 222B may have either a clearance fit or a press-fit relationship with respect to the pivot pin 155. The pin 155 has a first diameter D4 at the first end 224 and a second diameter D4 at the second end 226. It may have a diameter D5, and the first diameter D4 is larger than the second diameter D5. Diameters D4 and D The example nominal values ​​for 5 are approximately 3.6 mm (0.14 inches) and approximately 3.5 mm, respectively. It may be 0.13 inches. The opening 84A of the ear portion 78A of the mounting base 62 is diameter D It can have 6, and an exemplary value of D6 is the diameter D4 of the first end 224 of pin 155. The difference is as follows, and if necessary, the first end 224 of pin 155 and the ear portion 78A The mounting base 62 is selected to provide a press fit between the opening 84A and the lugs 7. The opening 84B of 8B may have a diameter D7 less than or equal to the diameter D5 of the second end 226 of the pin 155. The difference is, if necessary, the second end 226 of pin 155 and the second opening 8 of ear portion 78B The opening 222 of the side members 220A and 220B is selected to allow for press-fitting between them. Both A and 222B have a diameter D greater than the diameter D5 of the second end 226 of pin 155. 8 may have, the difference being the second end 226 of pin 155 and openings 84B, 222A, 222 It is selected to provide a gap fill between it and B.

[0113] A switch 68, as shown in Figures 10A to 10D, may include a switch sliding body 228. The sliding body 228 may be substantially rectangular and may have a switch sliding shaft 230. Axis 230 coincides with lever axis 152 when switch 68 is located on lever 64. They may be or substantially parallel. The sliding body 228 receives the first track 158 It has a sliding surface 232 that is either kicked or received by the first track 158. Depending on the shape, the sliding surface 232 may, for example, be on or instead of the first track 158. The first track 158 may be located inside the sliding body 228. The exemplary sliding surface 232 is located inside the sliding body 228. The length L9 can be extended and the T-slot 2 can be aligned with axis 230. Provided by 34. The exemplary nominal value of L9 is approximately 21 mm (0.80 inches). It is possible. Two indicators define the corresponding outboard surfaces 238A and 238B. Mu 236A and 236B extend from the opposite side of the sliding body 228 on the opposite side of the T-slot 234. Each arm 236A, 236B may include the indicator line 168 referenced above. Each indicator line 168 has its associated arms 236A, 236B recessed or These can be formed as protrusions. Outboard surface 238 of arms 236A, 236B The example width W4 of switch 68 between A and 238B is approximately 21 mm (0.80 inches). It is possible. Each arm 236A and 236B extends approximately beyond side 165A and 165B, respectively. It can stretch 6mm (0.24 inches) horizontally. Approximately 16mm (0.63 inches). The exemplary width W5 of the lever 64 between wings 166A and 166B is also arm 23 This can be overcome by the approximately 2.5 mm (0.10 inch) spread of the 6A and 236B.

[0114] In the bottom surface 240 of the T slot 234, the first and The second switch detent recesses 242A and 242B are located on the board of the switch plunger 198. It may be positioned for engagement by a lu (not shown). Detent recesses 242A, 242B may have a hemispherical shape. The recesses 242A, 242B are parallel to the axial direction, that is, the axis 230 In the direction of travel, between the locked icon 167A on the wings 166A, 166B and the unlocked released icon 167B can be separated by a distance L10 that is substantially equal to the distance between them . An exemplary nominal value of L10 may be about 10 mm (0.40 inches). The magnet housi ng opening 244 may pass through the bottom surface 240 of the T-slot 234. The first recess 242A is when the switch 68 is in the locked position, that is, the indicator line 16 8 is aligned with the locked icon 167A, the plunger 198 can be engaged thereby. The second recess 242B is when the switch 68 is in the unlocked position , that is, the indicator line 168 is aligned with the unlocked icon 167B when aligned, it can be engaged by the plunger 198.

[0115] The opening 244 can receive the magnet housing 204 in a press-fit relationship. The magnet 206 can be held within the housing 58 for assembly purposes by petroleum jelly, or alternatively by an adhesive or by mechanical entrapment, for example, by closure and press-fitting can be held. The underside of the switch 68 is increased in the region surrounding the opening 244 can have a thickness. The exemplary magnet 206 and magnet housing 204 allow the switch 68 to is slidably disposed on the lever 64, and the magnet housing opening 244 is aligned with the switch movement slot 2 when aligned with 02, it can be installed on the switch 68.

[0116] The lever extension 70 as shown in FIGS. 9A to 9F may include an extended sliding body 246. The sliding body 246 may be substantially rectangular, and the distal end 249 of the extension 70 to the proximal end 25 It may have an extension sliding shaft 248 that extends to 0. The extension 70 is positioned on the lever 64. In this case, the extension sliding shaft 248 coincides with the lever shaft 152, or substantially with the lever shaft 1 It can be parallel to 52.

[0117] The sliding body 246 receives the second track 162, or is attached to the second track 162. It has a lever extension sliding surface 252 that can receive more depending on the shape of the second track 162. The sliding surface 232 is, for example, on the first track 162 or, instead, on the first track It may be located inside 162. The exemplary sliding surface 252 has a length L11 of the sliding body 246. The T-slot 254 can be extended and aligned with the axis 248. It is provided as such. The exemplary nominal value for L11 can be approximately 77 mm (3.0 inches).

[0118] Even if the outward-facing contact surface 188 is substantially continuous from the distal end 249 to the proximal end 250 Good. The engaging head 258 may be provided at the distal end 249 of the extension 70. Engaging head 25 8 extends upward from the contact surface 188 and is used for engagement of the tool 50 by the user's thumb or finger. It provides an angled engagement surface 260. Multiple distal engagement surfaces 262 are provided for the user's finger and For engagement by the thumb, a contact surface 188 adjacent to the head 258 may be provided. The engaging surface 262 may be defined by a recess or a projection. Similarly, the lever extension The elongated portion 70 may have a plurality of proximal engagement surfaces 264 within the contact surface 188 adjacent to the proximal end 250. ru.

[0119] On the upper surface 266 of the T-slot 254, there are multiple, for example, four detent recesses, Wachi, notch, first detent recess 268A, second detent recess 268B, third The detent recess 268C and the fourth detent recess 268D are formed therein, It may be positioned for engagement by a ball (not shown) of the extension plunger 172. The recesses 268A, 268B, 268C, and 268D may be substantially hemispherical. 68A, 268B, 268C, 268D are recesses 268A, 268 with plunger 172 To make the lateral alignment of B, 268C, and 268D less sensitive, they are made elongated horizontally. It is possible. The recesses 268A, 268B, 268C, and 268D are axial, i.e., axis It can be uniformly separated in a direction parallel to 248. Position when the extension 70 is fully retracted. When, for example, the proximal end of the extension 70 is engaged with the distal end of the end wall 182 The first detent recess 268A, which is the most proximal recess, is aligned with the plunger 172. It may be done. The fourth recess 268D, which is the most distal recess, is such that the extension 70 is completely extended. When in the extended position, for example, the movement restriction pin 178 is at the proximal end 2 of the pin slot 216. When engaged with 18, it may be aligned with plunger 172.

[0120] The pin slot 216 can be formed on the upper surface 266, and at least the extension portion 70 With respect to the conceivable exemplary travel distance L12, the exemplary width W3 can be extended in the axial direction. The exemplary nominal value of W3 may be approximately 2 mm (0.08 inches). The exemplary nominal value of L12 The nominal value may be approximately 40 mm (1.6 inches). Pin 178 is located on the lever extension 70 After being slidably received by lever 64, it is received by slot 216. The depth of the extension 216 may be H5, which is shallower than the thickness H6 of the extension. Example nominal value of H5 This can be approximately 1 mm (0.04 inches). The exemplary nominal value for H6 is approximately 1.2 mm. It may be 0.05 inches. Slot 216 extends across the entire thickness of extension 70. The absence of the extension 70 is not necessary for it to slide in the desired manner, but rather to the T-slot. It can help reduce the intrusion of debris and the associated increase in resistance to sliding. ru.

[0121] The extension 70 slides on the lever 64, and then the pin 178 moves on the lever 64 The pin is extended from the inside 160 through the pin opening 176 of the lever 64 into the slot 216. This allows it to be assembled into lever 64. As described above, the pin opening 176 is blind If provided as a hole, the clearance hole (not shown) is aligned with the slot 216. It can be provided to the lever together. After sliding the extension 70 on the lever 64, clearance The hole can be aligned with the pin opening 176, and the pin 178 is a clearance hole. It passes through the hole and enters the pin opening 176. The height of the installed pin 178 is the same as the height of the slot 216. It must fit within the available height. Where slot 216 extends through the extension. In addition, pin 178 is located below the contact surface 188 for the user comfort of the hand switch 52. It should be there.

[0122] During operation, the hand switch 52 controls tabs 92A and 92B to the first channel 128A and Align with the second channel and axially position the collar 88 on the proximal end 60 of the housing 58. It is installed in the housing 58 by sliding it. Tab relative to the mounting shaft 90 Offset B1 of core wires 98A and 98B, and channel center relative to housing axis 140. Offset B2 of lines 147A and 147B allows for faster initial alignment, and housing Visual cues to help prevent incorrect orientation and mis-installation of the 58 hand switch. This can be provided to the user. Tabs 92A and 92B are the first channel 128A and the second channel Available by channel. Tab wedge surface 100A1, 100A2, 100B1, 100 B2 consists of the first channel wedge surfaces 146A1, 146A2 and the second channel wedge surface The wedge surface makes contact with the housing 58 and the hand switch 52 in a coordinated rotational manner. Alignment is possible, and the axial movement between them is continuously adjusted to the engagement position, hand swing The switch 52 rotates to align with the handpiece housing 58, that is, aligns It is in the aligned position, the engaged position. As the collar 88 approaches the fully installed position, the plunger Ball 114 of 104 passes the edge 150 of notch 132 and falls into notch 132. When it enters notch 132, the ball 114 is pressed against the bias surface 130 by the spring 116. It is kicked and generates bias force. The bias force is color 88, and therefore hand switch The entire 52 is biased toward the seating position on the housing 58. At the seating position, Contact points 101A1 and 101A2 of the first tab are the same as contact points 148A1 and 14 of the first channel. It is in contact with 8A2, and the contact points 101B1 and 101B2 of the second tab are in contact with the second channel It is in contact with the contact point.

[0123] With the hand switch 52 installed in the housing 58, the connector 56 is connected to the housing Connector 56 can engage with the 58. Connector 56 holds the hand switch 52 on the housing 58. It can help to do that.

[0124] During use, the hand switch operates the 50 tools, such as the saw, bar, drill, etc. To do this, the lever 64 is selectively pivoted toward the housing around the pivot axis 86. It can be done. The handpiece 54 includes the housing 58 as described above. The piece 54 can accommodate a magnetic field sensor 59 within the housing 58. The switch 68 is in the unlocked position and the lever 64 is potentially toward the housing 58 When displaced downward relative to the housing 58, the magnetic field sensor 59 interacts with the switch magnet 206. Alignment is being performed. Sensor 59 is connected via signal conductor 55, or wirelessly, as described above. It can be connected to the controller 63. Similarly, the motor 61 located inside the housing 58 It may be connected by a power conductor 57 to the console 53 and the power supply (not shown) within it. Power and control signal communication between the handpiece 54 and the console 53 is via a connector. It can be connected by 56.

[0125] The operation of tool 50 depends on the magnetic field sensor 59 that detects the magnet 206. 63 causes a change in power to the drive motor 61 in response to the strength of the detected magnetic field. This is possible. Therefore, as the magnet 206 approaches the sensor 59 within the distance sensing range... The power and / or speed of tool 50 increases. Switch 68 is in the locked position. As a result, the magnet 206 is kept outside the sensing range of the sensor 59, and the motor 61 is not activated. It is not possible.

[0126] To operate the tool 50 after the hand switch 52 has been installed in the housing 58, Switch 68 is located in the unlocked position on the lever. Switch 68 is located in the unlocked position on the lever. By sliding part 8 proximal to the locked position, it is positioned in the unlocked position. To do this, the user may use one or more of arms 236A, 236B, or both. Engage with your finger and apply a load to switch 68 in a direction parallel to the switch sliding shaft 230, The switch 68 can be displaced axially in the proximal direction, that is, in the direction of axis 230. Therefore, the switch 68 does not impose a load on the lever with respect to the switch spring 66. , it can be moved to the unlocked position. The switch plunger 198 and the recess 242A To overcome the detent load resulting from engagement, sufficient axial force is applied to arm 2 It must be applied to at least one of 36A and 236B. Switch 68 is this By overcoming the load, it can be displaced axially to the unlocked position. The movement of the switch 68 in the direction of the release position is controlled by the proximal end of the sliding body 228 and the track end 208 Of the engagement with and the engagement between the magnet housing 204 and the proximal end 210 of the slot 202 The retention of switch 68 in the unlocked position is limited by plunger 1 98 can be supported by engaging it with recess 242B. Switch 68 To displace it from the locked position to the unlocked position, or to move switch 68 from the unlocked position To move it to the locked position, the lever tends to pivot around the pivot axis 86. No force perpendicular to the drive shaft 230 is required. Lever 64 is against the bias of switch spring 66. It is then pivoted toward the housing. As described above, the magnet 206 inside the switch 68 is felt When within the detection range, the sensor 59 can provide a signal to the controller 63. Next, the controller 63 directly or indirectly controls the drive motor 61, also located within the housing 58. Power can be supplied to the tool bit 280 to start its movement. Accidental activation is avoided by sliding switch 68 to the locked position. The release of lever 64 by the spring 66 causes the lever 64 to move away from housing 58. It allows the pivot to be turned off.

[0127] Switch 68 can be operated by the user by pushing the switch 68 axially in the distal direction. It can be returned to the locked position. The operation involves moving switch 68 to the unlocked position. Essentially the same, but in the opposite direction. The engagement between plunger 198 and recess 242B The detent load is overcome by the user. Switch 68 is distal to the user. The movement of the switch 68 relative to the lever 64 slides in the direction of the magnetic housing 204 and the switch 68. Restricted by engagement with the distal end 212 of rod 202. Switch 68 in the locked position. The retention of the plunger 198 can be aided by its engagement with the recess 242A.

[0128] The hand switch 52 is in the fully extended position as shown in Figures 1, 2, and 3B. The extension is in the fully extended position as shown in Figure 3A, or at any position in between. It can be used with 70. Of the two shown for the exemplary hand switch 52 Intermediate positions exist, but there may be more or fewer intermediate positions. The extension 70 is Of the detent recesses 268A, 268B, 268C, and 268D of the elongated portion 70, one corresponds In one of the four exemplary positions related to the ball reception of plunger 172 It can be held. The plunger 172 is installed on the extension 70 and a detent recess is provided. Therefore, the same detent effect can be achieved. Recess 268 in the lever extension 70 A, 268B, 268C, and 268D may each be separated by a distance L13, and are recesses. The total distance between 268A and 268D is three times the distance L13. An example public distance of L13 is shown below. The nominal size may be approximately 13 mm (0.50 inches). Recessed parts 268A, 268B, 268C , 268D may include part of the lever extension multi-position detent. The extension 70 is tool 5 For user 0, a variable-length lever that can be adjusted to fit the user's hand size is provided. To provide.

[0129] When the extension 70 is fully extended, i.e., in the stored position, the lever extension The contact surface 188 of 70 and the flush outer surface 186 of the proximal end 180 of the lever 64 are for the user Coordinately presents a substantially continuous, smooth surface for finger engagement. The extension portion 70 is held in place by engaging the extension plunger 172 with the recess 268D. It may be supported. The user can move the extension 70 in the desired extension movement direction relative to the mounting base 62. By pressing and engaging, the extension 70 is displaced axially, that is, on the axis 248. The extension can be slid along the head 258. The extension 70 for finger engagement To provide what could be the most prominent engagement feature, and to facilitate gripping of the extension 70 by the fingers. The supplementary engagement features are provided by the distal engagement surface 262 and the proximal engagement surface 264. Such features 258, 262, and 264 can resist finger slippage across the extension 70. To slide the extension 70 from the pulled-out position toward the fully extended position, the extension part To overcome the detent force associated with the engagement between the runner 172 and the recess 268D, A certain axial force needs to be applied to the extension 70 in the desired direction of movement.

[0130] The exemplary extension length of the combined lever 64 and extension 70 is the total L4. The distance between the proximal end 250 and the distal end 249 of the lever extension may be substantially equal to the distance between the proximal end 250 and the distal end 249. The combined length of such drawers is approximately 102 mm (4 inches). The exemplary fully extended length of the lever 64 and extension 70 is approximately 142 mm (5.6 It may be in inches. The extension 70 is anywhere between the pulled-out position and the fully extended position. It can be placed anywhere. It is helpful for the user to set the extension to a specific intermediate position. It can be understood that intermediate detents may be provided by recesses 268B and 268C. The position is such that the lever extension is along axis 248 with little or no axial force. This prevents movement away from the intermediate position of the beam. The extension 70 shown in the figure is concave. There are two intermediate detent positions related to parts 268B and 268C, but this intermediate position The number of placements can be fewer or more.

[0131] Movement of the extension 70 toward the fully extended position away from the end wall 182 is, The pin 178 is ultimately restricted by its engagement with the proximal end 218 of slot 216. Holding the extension 70 in the extended position involves engaging the extension plunger 172 with the recess 268A. This can be supported by allowing the extension 70 to return to its extended position. The engagement between the proximal end 250 and the end wall 182 and the pinion of the slot 216 relative to the distal end 214 Move the extension 70 axially in the proximal direction until its movement is restricted by one of the engagements of n178. This can be achieved by pulling. Holding the extension 70 in the extended position is done by the extension plan The 172 can be supported again by engaging it with the recess 268D.

[0132] At any extension position, i.e., any position other than the pull-out position, the extension is U For engagement by the fingers, the outer surface 188 and head 2 are separated from the proximal end 180. The important contact pads, including 58, are presented. The contact pads have an extension width, for example, about 10m. Lengths of m (0.40 inches) and approximately 85 mm (3.3 inches) can be offered. Lever 6 This is facilitated by positioning the extension 70 on the track 162 on the outside 164 of 4. Such a large contact area allows the user to operate the tool 50 by pressing the extension 70. Improves finger comfort.

[0133] Figures 11 to 13B show alternative mounting base configurations.

[0134] Figure 11 shows the handpiece housing 58' and a single positioning tab 92'. The mounting base 62' is shown. The wedge surface 100' of tab 92' is a single receptor channel 12 It engages with the 8' wedge face 146'. Although not shown, the base 62' and housing G 58' is for holding the hand switch 52' on the handpiece housing 58'. Mounting base detent may include detents such as 149. Around the perimeter of the housing 58'. A contact point is established between the wall 138' and the distal edge 94' of the collar 88' at the bottom of the collar 88'. It can also be done.

[0135] Figures 12A and 12B show the hand switch 52'' with mounting base 62''. The handpiece housing 58'' is shown, which has a slidably receiving channel 146''. The mounting base is 62'' and has a retaining tongue 92'' with a barb 100''. There is a tongue 92'' which is spring-biased to spread outwards. Barb 10 When 0'' passes the end of channel 146'', the tongue 92'' widens, and the barb 100 The channel 146 is connected to the proximal end 60 of the housing 58 at either side. Engage and hold the hand switch 52''.

[0136] Figures 13A and 13B show a dovetail profile and are relative to the housing axis 140'''. Handpiece housing 58 with laterally positioned receiving channels 146'''' This indicates '''. Hand switch 52''' is complementary to that of channel 146'''. It has a mounting base 62'' with a rail 92'''' having a groove shape. L146''' is provided by a plunger (not shown) located on the mounting base 62'''' For engagement, it has a detent notch 132''. Mounting base 62 Rail 92 of ''' is received by channel 146''' and plunger It is held in place by engaging with the tent notch 132'''.

[0137] Replacement lever 64'''', switch spring 66'''', safety switch 68'''', o A further alternative hand switch 52'''' having a lever extension 70'''' is shown in Figure 1. As shown in 4A-17, the lever 64'''' is the receiver of the mounting base 62''''. It can be received by pocket 80''''. Pivot pin centered on pivot axis 86'''' Using 155'''', the lever 64'''' is pivotably connected to the base 62''''. It is possible. The mounting base 62'''' also specifies the mounting shaft 90''''. This may include an exemplary annular color 88''''.

[0138] The lever extension 70'''' is slidably positioned on the lever 64'''', as shown in Figure 14A. and the fully extended position shown in Figure 14A, and the lever shown in Figure 3A, although not shown. The user can choose between the fully extended position and the fully extended position which is similar to the fully extended position of the extension. It moves selectively. Switch 68'''' is slidably positioned on lever 64''''. The user can selectively move between the unlocked position and the locked position.

[0139] Lever 64'''' is a lever that is substantially perpendicular to at least the direction of the pivot axis 86''''. Defines shaft 152'''', lever extension 70'''', and safety switch 68''''. Each of the 's is aligned with the lever shaft 152'''' and the respective sliding surface 252'' It may have '', 232''''.

[0140] Lever 64'''' is a first track extending substantially parallel to the lever axis 152'''' It has track 158'''' and a second track 162''''. First track 158 '''' is mounted 90' more than the second track 162'''' in its installed position. It is located close to '''. The second track 162'''' is on the outside at 164''''. The first track 158'''' is inward inside lever 64'''', i.e., inside It may include the inner 160''''. Both the inner 160'''' and the outer 164'''' are levers. It does not need to be the outer surface of 64''''. The hollow lever 64'''' has multiple inner surfaces. For example, the innermost 1632'''' closest to axis 90'''', and the outer inner It may have 163''''. Similarly, lever 64'''' may have multiple outer parts.

[0141] The lever 64'''' can be formed from sheet metal by compression forming (stamping). Lever 64'''' is formed as an integral part of lever 64'''' Includes switch spring 66'''', the rest of lever 64'''' and base 62'''' It is positioned between the spring 66'''' and the lever 64'''' on the pivot shaft 86''''. It can be biased around. Lever 64'''' is a first joint having a first shape Multiple (e.g., two) joining tabs 282'''' on the seam edge 284'''' This may include: Each of the tabs 282'''' is the second joint edge 2 of the lever 64'''' It is received by the joint notch 286'''' located at 88''''. Tab 282'''' And the exemplary shape of notch 286'''' may be a dovetail groove as shown in the figure.

[0142] Lever 64'''' has a switch stop tab 204'''' that extends downward and upward It may include an extended stop tab 178'''' which extends to the stop. As will be explained in more detail below, stop Stop tabs 204'''', 178'''', switch 68'''' and lever The movement of each extension 70'''' can be restricted.

[0143] Lever 64'''' also includes switch plunger 198'''' and extension plunger It may include 172''''. The extension plunger 172'''' is outside the lever 64''''. A single projection 292'''' may be formed on the side 164'''' and positioned at its end It may be in the form of a cantilevered leaf spring 290''''. Switch plunger 198''' ' may be formed on the inside 163'''' of the outside of lever 64''''. Switch plan J198'''' is a piece with an integral projection 298'''' located at its end. It may take the form of a leaf spring 296''''.

[0144] The lever extension 70'''' is slidably positioned on the second track 162''''. The sliding surface 252'''' of the lever extension 70'''' is the second track 162'''' You can receive it.

[0145] The extension movement slot 216'''' is shaped on the upper surface 266'''' of the sliding surface 252''''. This can be achieved. Slot 216'''' is at least an expected example of extension 70'''' It can be extended by an indicative distance. The extension stop tab 178'''' is lever 64'' After the ''' is slidably received by the lever extension 70'''', slot 216' It can be received by '''. Tab 178'''' is the sliding surface 252 of the lever extension 70''''. The lever 64 can be elastically deflected upon initial reception by ''''. When the long section 70'''' is pressed a sufficient distance onto the lever 64'''', the tab 178'''' It is received by slot 216'''' and snaps back to slot 216'''' It will be extended to '.

[0146] Multiple, for example, three detent recesses, i.e., notches 268'''' on the upper surface 266 Formed as '''' and engaged by projection 292'''' of extension plunger 172'''' It can be arranged in such a way. The detent recess 268'''' is substantially semi-cylindrical It can be of a certain shape and can extend laterally across substantially the entire width of the upper surface 266''''. The recess 268'''' is uniform in the axial direction, that is, in the direction parallel to axis 152''''. They may be separated or unevenly spaced, as shown in Figures 14C and 16. This is possible. The most distal part of the recess 268'''' is the position where the extension 70'''' is fully retracted. When in position, plunger 172'''', more specifically its projection 292'''' and position Alignment is also acceptable. The most proximal point of the recess 268'''' is plunger 172'''' That is, projection 292''' when extension 70'''' is in the fully extended position. It may be aligned with ', for example, the fully extended position is tab 178'''' However, this is achieved when the proximal end 218'''' of slot 216'''' is engaged.

[0147] The two detent recesses 242'''' are located on the sliding surface 232''' of the switch 68''''. The bottom surface 240'''' may be formed. The recess 242'''' is formed in the switch plunger 1 It may be positioned for engagement by projection 298'''' of 98''''. Detent recess 2 42 may have a semi-cylindrical shape, and as shown in Figure 17, the entire switch 68'''' It may extend laterally across its width. The recess 242'''' extends axially, i.e., along axis 152' In a direction parallel to ''', the lock position and unlock position of switch 68'''' They can be separated by a distance substantially equal to the distance between them when switch 68 is in the locked position. The projection 298 can engage with the recess 242'''' further distal to the recess. When the switch 68'''' is in the unlocked position, the plastic is located closer to the recess 242''''. The protrusion of the magnet 198'''' can engage. The magnet 206'''' is connected to the switch 68''''. It can be press-fitted into the magnet opening 244''''.

[0148] The upper surface 300 of the sliding surface 232 of switch 68'''' is formed therein The switch may include the modified switch movement slot 202''''. The axis of slot 202'''' The length of the direction determines the range of movement of switch 68 relative to lever 64''''. This is possible. Switch 68'''' is on the first track 158''' of lever 64''''. After being slidably received by ', the switch stop tab 204'''' is in slot 202 It can be received by ''''. Tab 204'''' is the first track 1 of lever 64''''. Elasticity upon initial reception of the sliding surface 232'''' of switch 68'''' by 58'''' It can be deflected to the target. Switch 68'''' is pressed a sufficient distance to lever 64''''. Once installed, tab 204'''' is received by slot 202''''.

[0149] The connector 56 facilitates engagement with and disengagement from the handpiece 54. It can be advantageously configured to do so. Figures 18A-23 show an exemplary connector 56. The connector 56 can be connected to the first end of the cable 51. Cable 51 may be included as an element of the electrical cable assembly 301. The bridge 301 further comprises a second connector 302 fixed to the second end of the cable 51 The second connector 302 is shown schematicly and may or may not be identical to connector 56. Good. The cable assembly 301 and handpiece collectively form the surgical system 303. You can prepare for it.

[0150] Connector 56 has a cable end receiver 304 and an outer sleeve 305 that extend axially. The cable end receiver 304 can be directly attached to the end of the cable 51. The outer sleeve 305 is received over substantially the entire length of the cable end receiver 304. , they are arranged.

[0151] The cable end receiver 304 is located inside the inner sleeve 308 and is secured thereto Includes pin holder 306. The bushing 310 faces the side of the pin holder 306 proximal to the bushing 3 Positioned relative to 12, the pin holder 306 is held inside the inner sleeve 308 or or can help to hold it in place. The retaining nut 314 is inside the inner sleeve 308. To help hold the pin holder 306, the proximal end 316 of the inner sleeve 308 is positioned on top of it. It can be placed. The washer 318 is coaxially positioned between the nut 314 and the inner sleeve 308. The outer sleeve 305 may include the nut 314 of the receiver 304 if included. It extends virtually throughout, and as a result, the receiver 304 connects from the handpiece 54. The connector 56 cannot be grasped by the user to pull it. Connector 56 is on the outside sleeve. Grasp B305 and then pull it away from the handpiece 54, that is, in the proximal direction. It can only be removed from the handpiece 54. For details on the components, see below. I will explain in detail.

[0152] The outer sleeve 305 is substantially cylindrical, and the gripping portion 319 and insertion portion 320 Includes. The insertion portion 320 has a substantially constant first outer diameter and a substantially constant first inner diameter. It is possible that both can be received by the handpiece electrical receptacle 321. It is a receptacle that defines an annular gap between the central boss and the surrounding inner diameter surface. The insertion portion 320 also has a corresponding number of parts located on the inner sleeve 308. It may include one or more windows 322 for receiving the retaining wedge 330. The inserted portion 320 shows two such windows 322. Window 322 is They are shown positioned in opposite directions across axis 140. Window 3 Each of the 22 may have a first surface, for example, a proximal engagement surface 323 and a second surface. For example, the inclined surface 325 facing the distal end of the wedge 330 and the proximal end of the wedge 330 These are distal engagement surfaces 324 for engagement with the stopping surface 326.

[0153] The gripping portion 319 of the outer sleeve 305 may include a raised alignment surface 328. The alignment surface 328 can be aligned with, for example, the proximal tab 82 in Figure 5C, A ridge extending radially from axis 140 beyond the surface located opposite the side sleeve 305 It can be presented as a lobe, such as a rising surface, and can be aligned with the handpiece 54. This facilitates the alignment within the receptacle 321 of the handpiece 54. Alignment of pins 332 of connector 56 with receiving socket 334, and receptacle Alignment of the wedge 330 with the engaging recess 335 located on the inner diameter surface of the annular gap 321 This results in a gripping surface 336, for example, as shown in Figure 22. It may include multiple parallel recesses and V-shaped surface pockets, or multiple raised edges on its sides. The outer sleeve 305 has a length of L14, and the assembled inner sleeve 308 has a pinhole. Substantially covers the 306, bushing 310, washer 318, and nut 314. It is sufficient.

[0154] The inner sleeve 308 includes the shank portion 338 and the base portion 339. The portion 338 is substantially entirely located within the insertion portion 320 of the outer sleeve 305. The wedge 330 can be attached to the shank portion 338. More specifically, each wedge The 330 is fixedly attached to the associated retractable and elastically deflectable beam 340. It is possible. Together, the wedge 330 and beam include elastic clips. Each beam 340 The wedge 330 can be formed integrally with the shank portion as a single, unified formation. The 340 can be oriented longitudinally parallel to the axis 140 on the opposite side of the axis. Beam 3 40 may be defined by the longitudinal slit of the shank portion 338, and the shank portion 33 It has a distal end and a proximal end, respectively, which are located within 8 and fixed to the shank portion 338. Obtain. The beam 340 is more than the rest of the shank portion 338 in order to facilitate deflection. It may also have a thin cross-sectional thickness. The base portion 339 is substantially entirely attached to the outer sleeve 305 It is located within the gripping portion 319. The inner sleeve 308 is located within the outer sleeve 305. It can move axially over a limited distance. The inner sleeve 308 is a pin holder. Includes an internal chamber 341 that can receive 306 and bushing 310 respectively. The pin holder 306 and bushing 310 are both fixed to the internal chamber 341. It is inserted into.

[0155] The pin holder 306 is connected to the pin holder core 342 and is located inside the pin holder core 342. It includes a number of pins 332 attached to and fixed to a pin holder core 342. The pin holder core 344 may be formed as a single, integrated part of the core 342. 2 may be made of a non-conductive material, such as rubber or plastic. Pin 332 is It may be made of a rigid conductive material, such as metal.

[0156] The distal portion of the pin holder 306 is distal to the locator ring 344, and the inner sleeve It can be placed within the shank portion 338 of 308. Proximal portion of pin holder 306 It is located near the locator 344 and can be positioned within the base portion 339. Multiple pins 332, for example nine, may be arranged parallel to the axis 140 within the pin holder 306. The tip of pin 332 extends beyond the core 342 of the distal end of pin 346 into the wire receiving pocket. It is located at the proximal end 348 of pin 332. The core 342 may be hollow, for example It may have a cavity 350 open at its proximal end.

[0157] The bushing 310 may have an internal chamber that extends the length of the bushing 310. The single 310 has an opening at the distal end 352 that is sized to receive the proximal end of the pin holder 306. It may have a mouth. A bushing relative to the pin holder 306 in the axial direction within the inner sleeve 308. The movement of the 310 can be restricted by the locator 344 of the core 342. The movement of the 310 is directed to the side 312 facing the proximal side of the pin holder 306, for example, the pin holder The proximal side of the locator ring 344 and the far side of the bushing 310 function as the core locator surface. It can be thus restricted by engagement with the position end 352.

[0158] The locator ring 344 receives the key tab 356 formed on the bushing 310. It may include a keyway notch 354. The alignment of the key tab 356 and the keyway notch 354 This ensures proper alignment between the bushing 310 and the pin holder 306.

[0159] The bushings 310 are also positioned at the ends of the bushing legs 360. It may include multiple cable engagement feet 358. The bushing leg 360 is connected to a number of corresponding slots 362 within the proximal end 364 of the bushing 310. Therefore, it can be defined. The bushing leg 360 is the base portion 339 of the inner sleeve 308 A rake edge 366 for engaging with a rake notch 368 on the inner diameter. This can be defined. The engagement between the inclined edge 366 and the inclined notch 368 is a bushing. Helps to hold each of 310 and pin holder 306 inside the inner sleeve 308 The cable engagement foot 358 is positioned at the proximal end 364 of the bushing 310, radially. It is oriented to face inward. When connector 56 is fixed to cable 51. The foot 358 can engage with the cable 51.

[0160] The nut 314 is attached to the threaded cylindrical body 370 and the proximal end of the cylindrical body 370. Includes a lunge 372. The nut 314 includes threads on the inner diameter of the threaded cylindrical body 370. This engages with the threads on the outer diameter of the proximal end 316 of the inner sleeve 308. Yes, it is possible. The distal end of the nut 314 faces the proximal end of the base portion 339 of the inner sleeve 308. The engaging surface engages with the nut 314, and its movement on it can be restricted. Five spanner pin openings 374 may be formed in the end flange 372. 74 can receive an engagement pin (not shown) of a spanner wrench (not shown).

[0161] Washer 318 is inside nut 314, with the proximal end 316 of inner sleeve 308 and end flat It can be placed between the 372 and the 372.

[0162] As part of the assembly process, cable 51 connects to pin 332 in pin holder 306. It can be connected to a predetermined pin at the distal end 346. Each individual conductor 55 of the cable 51 is connected to a predetermined pin at the distal end 346. It is placed in a pocket and secured to the associated pin 332, and can be soldered, for example. After the conductor 55 of cable 51 is connected to pin 332, the pin holder 306 and bushing The bushing 310 is positioned (not shown) to surround the end of the cable near the bushing 310. or they can be connected. An insulator 376 having an uncured liquid form, for example, silicone, is poured into a mold. Inject into connector 56, and into the inside of bushing 310 and on cable 51. The ends of the pins 332 positioned there can be sealed. The hardened insulator 376, that is, Overmold 376 is solid. Overmold 376 is elastically flexible. This allows the portion of the cable where the overmolding 376 is placed to bend. The overmolding 376 contaminates pin 332 at the end of pin holder 306 of connector 56. It can protect against staining.

[0163] Washer 318 is inside nut 314, near end flange 372 and inner sleeve 308 It can be positioned between the end 316 and the nut 314. The nut 314 is positioned between the overmolded 376. After forming, it can be screwed into the inner sleeve 308. Thus the washer 318 is It can be pressed against the end flange 372 by the over mold 376.

[0164] Assembled cable end receiver 304, i.e., inner sleeve 308, pinhole The 306, 310 bushing, 314 nut, 318 washer, and 51 cable are The outer sleeve 305 is aligned with the outer sleeve 305 in the axial and rotational directions and can be pushed in there. The inner sleeve 308 aligns the wedge 330 and the window 322 in the axial direction. To ensure this, the guide rail 37 is supported by the complementary guide slot 380. It may have 8.

[0165] Once the connector 56 is fully assembled, the outer sleeve 305 is substantially joined. It extends throughout the inner sleeve 308 and nut 314.

[0166] During operation, the uninserted connector 56 exceeds the first outer diameter of the insertion portion 320. It has a wedge 330 that extends radially outward through window 322. In this state, the outer sleeve 305 is in a latched position relative to the inner sleeve 308. In the latch position, the wedge 330 is in contact with the window 322 of the outer sleeve 305. Qualitatively aligned in the axial direction, beam 340 is not substantially deflected, and wedge 330 This allows the insertion portion 320 to extend beyond its first outer diameter. The connector 56 is positioned The mating surface 328 is used to align with the handpiece 54, and the connector 56 is connected to the handpiece Orient it toward the handpiece 54. Next, the connector 56 engages with the handpiece 54. It is pushed in. During insertion, the wedge of the handpiece 54 into the inner diameter of the receptacle 321 The engagement of the inclined surface 325 of 330 causes the wedge 330 to win against the resisting force of the beam 340. The dough 322 is biased downward. The inner sleeve 308 and outer sleeve 305 are Remaining in the latched position, the wedge 330 aligns with the window 322. When 322 aligns axially with the engagement recess 335 of the handpiece 54, Rust 330 is restored to its extended position by the elastic beam 340. As a result, wedge 3 30 is partially positioned in the recess 335.

[0167] The wedge 330 tends to resist the pull of the connector 56 from the handpiece 54. However, by applying sufficient pulling force to the outer sleeve 305, The resistance to this is due to the action of the distal engagement surface 324 of the window 322 acting on the inclined surface 325. It can be overcome by this. The force on the inclined surface 325 is first the stopping of the wedge 330. The stopping surface 326 is pressed against the proximal end of the recess 335, and the inner sleeve against the handpiece 54 Restricts the movement of 308. As the pulling force applied to the outer sleeve 305 increases, The distal engagement surface 324 of the window 322 acts against the inclined surface 325. Outer sleeve 3 The force acting on 05 overcomes the resistance of beam 340, displacing wedge 330 radially inward. Such displacement of the wedge causes the outer sleeve 305 to move relative to the inner sleeve 308. Move axially, so that wedge 330 is offset axially from its alignment with window 322. This allows movement to the open position between them while they are locked. As shown in Figure 20B. So that the outer sleeve 305 is in the open position relative to the inner sleeve 308, The wedge 330 is pulled out, i.e., removed, from the recess 335. By removing it in this manner from the recess 335, the connector 56 is removed from the receptacle 321. It can be pulled out. When removed from the handpiece 54, the connector 56 is on the inclined surface. The restoring force of the beam presses 325 against the distal surface 324 of window 322, causing it to latch. It can be restored to its position, within the slidable range between the inner sleeve 308 and the outer sleeve 305. It generates relative axial motion across the axis.

[0168] Since the stopping surface 326 engages with the proximal end of the recess 335, only the cable 51 is pulled. This does not result in the release of the connector. Therefore, accidental removal of connector 56 is controlled. It is limited.

[0169] In the drawings, the same reference number indicates the same element. Furthermore, some or all of these elements All information is subject to change. The media, processes, and systems described herein are subject to change. Regarding methods, heuristics, etc., the steps of such processes are specific. It is described that such processes occur in an ordered sequence, and such processes are described herein. It is understood that the described steps can be performed in an order other than that listed. I want to understand this. Furthermore, I want to be able to perform specific steps simultaneously and add other steps. Please understand that you may omit certain steps described herein. In other words, the process description herein is provided for the purpose of illustrating specific embodiments. Therefore, it should not be interpreted as limiting the scope of the patent claims.

[0170] Therefore, the above explanation is intended as an example and is not limiting. Please understand. Many embodiments and uses other than the examples provided are clearly explained above. It will become easier. The range must be determined without referring to the above explanation, but instead such claims, along with the entire scope of the equivalents for which rights are granted, attached patent It is necessary to refer to the claims to identify future technologies discussed herein. The developed and disclosed systems and methods may be incorporated into such future embodiments. It is expected and intended that this will happen. In summary, this application is subject to modification and change. There is something we need to understand.

[0171] As used herein, the adverb “substantially” refers to shape, structure, measurement, quantity, time, etc. However, due to defects in materials, machining, manufacturing, data transmission, and calculation speed, it is not accurately described. This means that deviations from geometric shapes, distances, measurements, quantities, time, etc., are possible.

[0172] All terms used in the claims are subject to express indication to the contrary herein. Unless otherwise understood, the usual meaning as understood by those familiar with the technology described herein. It is intended to give flavor. In particular, single words such as "a," "the," and "said" The use of articles in numerals is permitted unless the claim explicitly states otherwise. You need to read this to describe one or more of them.

[0173] The abstract is provided to allow readers to quickly confirm the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Furthermore, in the modes for carrying out the invention described above, it is found that various features are grouped together in various embodiments for the purpose of streamlining the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the claimed embodiments require more features than are explicitly described in each claim. Rather, as reflected in the following claims, the subject matter of the invention consists of fewer features than all the features of a single disclosed embodiment combined. Accordingly, the following claims are incorporated into the modes for carrying out the invention, and each claim is valid in itself as separately claimed subject matter. The claims at the time of filing were as follows: [Claim 1] A hand switch for an electric surgical handpiece, A mounting base that defines the pivot axis, An elongated lever defining a lever axis substantially perpendicular to the direction of the pivot axis, comprising a proximal end pivotally connected to the mounting base on the pivot axis, a distal end opposite to the proximal end, an inner first track, and a second track on the outer side opposite to the inner track, both of which are substantially parallel to the lever axis, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, A safety switch slidably positioned on the first track, A hand switch including a lever extension slidably positioned on the second track. [Claim 2] The hand switch according to claim 1, wherein at least one of the first track and the second track is either a T-slot or a T-track. [Claim 3] The hand switch according to claim 2, wherein both the first track and the second track are T-tracks. [Claim 4] The hand switch according to any one of claims 1 to 3, wherein the lever has first and second sides connecting the inner and outer surfaces, and the safety switch has at least one outboard surface extending laterally beyond at least one of the sides. [Claim 5] The outboard surface is defined by an indicator arm, as described in claim 4. [Claim 6] The hand switch according to any one of claims 1 to 5, wherein the lever has a slot on the inside for receiving at least one of a magnet and a magnet holder fixed to the safety switch. [Claim 7] The hand switch according to claim 6, wherein the slot is shorter in length than the length of the lever, and the slot defines the range of movement of the safety switch. [Claim 8] The hand switch according to any one of claims 1 to 7, wherein the detent is located between the safety switch and the lever. [Claim 9] The hand switch according to claim 8, wherein the detent includes a safety switch plunger, a first notch associated with the operating position of the safety switch, and a second notch associated with the non-operating position of the safety switch. [Claim 10] The hand switch according to claim 9, wherein the safety switch plunger is located on the lever and the notch is located on the switch. [Claim 11] The hand switch according to any one of claims 1 to 10, wherein the detent is located between the lever and the lever extension. [Claim 12] The hand switch according to claim 11, wherein the detent includes an extension plunger and first, second, third and fourth notches associated with the first, second, third and fourth positions of the extension, respectively. [Claim 13] The hand switch according to claim 12, wherein the extension plunger is located on the lever and the notch is located on the lever extension. [Claim 14] The hand switch according to any one of claims 1 to 13, wherein the mounting base includes an annular collar defining a mounting axis substantially perpendicular to the direction of the pivot axis, the collar being sized for a slidable position on the proximal end of the handpiece. [Claim 15] An annular collar defining a positioning tab extending axially in the distal direction, wherein the tab includes an angled wedge surface, The hand switch according to claim 14, further comprising a detent plunger disposed on the inner diameter of the annular collar and a detent notch defining a bias surface. [Claim 16] The hand switch according to claim 15, wherein the collar includes at least a second positioning tab, the second positioning tab also includes an angled wedge surface that extends axially in the distal direction. [Claim 17] The hand switch according to claim 16, wherein the detent plunger is positioned on the collar. [Claim 18] A surgical tool comprising an electric surgical handpiece and a hand switch, The aforementioned electric surgical handpiece comprises a handpiece housing that extends longitudinally along the housing axis, The housing includes a magnetic field sensor, The aforementioned hand switch is A mounting base defining a pivot shaft having a direction substantially perpendicular to the housing axis and a mounting surface extending in a first direction, An elongated lever defining a lever axis substantially perpendicular to the direction of the pivot axis, The proximal end pivotally connected to the mounting base by the pivot shaft, The distal end opposite to the proximal end, A first inner track substantially facing the housing axis, An elongated lever including a second track located on the outside opposite to the aforementioned inside, the second track having both tracks substantially parallel to the lever axis, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, A safety switch slidably positioned on the first track to which a magnet is fixed, A surgical tool comprising a lever extension slidably positioned on the second track. [Claim 19] The surgical tool according to claim 18, wherein at least one of the first track and the second track is one of a T-slot and a T-track. [Claim 20] The surgical tool according to claim 19, wherein both the first track and the second track are T-tracks. [Claim 21] The surgical tool according to any one of claims 18 to 20, wherein the lever includes first and second sides connecting the inner and outer surfaces, and the safety switch includes at least one outboard surface extending laterally beyond at least one of the sides. [Claim 22] The surgical tool according to any one of claims 18 to 21, wherein the lever includes a slot on its inside for receiving at least one of the magnet and magnet holder fixed to the safety switch. [Claim 23] The surgical tool according to claim 22, wherein the slot is shorter in length than the length of the lever, and the slot defines the range of movement of the safety switch. [Claim 24] The surgical tool according to any one of claims 18 to 23, wherein the detent is positioned between the safety switch and the lever. [Claim 25] The surgical tool according to claim 24, wherein the detent includes a safety switch detent plunger, a first notch associated with the operating position of the safety switch, and a second notch associated with the non-operating position of the safety switch. [Claim 26] The surgical tool according to claim 25, wherein the detent plunger is located on the lever and the notch is located on the switch. [Claim 27] The surgical tool according to claim 26, wherein the detent is positioned between the lever and the lever extension. [Claim 28] The surgical tool according to claim 27, wherein the detent includes an extension detent plunger and first, second, third and fourth notches associated with the first, second, third and fourth positions of the extension, respectively. [Claim 29] The surgical tool according to claim 28, wherein the extension detent plunger is positioned on the lever and the notch is positioned on the lever extension. [Claim 30] The surgical tool according to any one of claims 18 to 29, wherein the mounting surface is defined by an annular collar including at least a portion of the mounting base, the collar defines a mounting axis substantially perpendicular to the direction of the pivot axis, and the collar is sized for a slidable position on the proximal end of the handpiece. [Claim 31] A housing comprising a receiving channel formed at its proximal end, wherein the receiving channel is at least partially defined by an outer peripheral wall, the channel extends axially away from the proximal end of the housing toward the distal end of the housing, the first side of the channel defines a first channel contact point, and the second side of the channel defines a second channel contact point, the housing and An annular collar defining a positioning tab extending a second predetermined length distally, wherein the tab includes a first surface defining a first tab contact point and a second surface defining a second tab contact point, and when the collar is engaged with the housing, the first tab contact point is in contact with the first channel contact point and the second tab contact point is in contact with the second channel contact point, The surgical tool according to claim 30, further comprising a detent plunger disposed in the inner diameter of the collar and an inclined groove defining a bias surface. [Claim 32] The surgical tool according to claim 31, wherein the collar includes at least a second positioning tab, and the housing includes a second receiving channel for receiving the second positioning tab when the collar is engaged with the housing. [Claim 33] The surgical tool according to claim 32, wherein the detent plunger is positioned on the collar. [Claim 34] A hand switch for an electric surgical handpiece, The mounting base includes an annular collar that defines a pivot axis and a mounting axis substantially perpendicular to the direction of the pivot axis, the collar being sized for a position slidable on the proximal end of the handpiece in the direction of the mounting axis, An elongated lever, pivotably connected to the mounting base at its proximal end, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, Includes a safety switch slidably positioned on the lever, The aforementioned mounting base is A first positioning tab and a second positioning tab of the collar, each extending axially distally from the main portion of the collar, and each tab including an angled wedge surface, A hand switch further comprising a detent notch defining a bias surface and a detent plunger positioned on the inner diameter of the annular collar. [Claim 35] The hand switch according to claim 34, wherein each tab includes an angled wedge surface. [Claim 36] The hand switch according to claim 35, wherein each tab has a tab centerline that is substantially symmetrical, and each tab has two angled wedge surfaces. [Claim 37] The hand switch according to claim 36, wherein the centerlines of both tabs are at a predetermined distance below the mounting shaft, on the opposite side of the mounting shaft from the pivot axis. [Claim 38] The hand switch according to any one of claims 34 to 37, wherein the detent plunger is positioned on the collar. [Claim 39] The hand switch according to any one of claims 34 to 38, wherein the safety switch is slidably disposed inside the lever. [Claim 40] The hand switch according to claim 39, wherein the lever extension is slidably positioned on the outside of the lever. [Claim 41] A surgical tool comprising an electric surgical handpiece and a hand switch, The aforementioned electric surgical handpiece is A handpiece housing that extends longitudinally along the housing axis, The housing includes a magnetic field sensor, The aforementioned hand switch is The mounting base includes an annular collar that defines a pivot axis and a mounting axis substantially perpendicular to the direction of the pivot axis, the collar being sized for a position slidable on the proximal end of the handpiece in the direction of the mounting axis, An elongated lever, pivotably connected to the mounting base at its proximal end, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, Includes a safety switch slidably positioned on the lever, The aforementioned mounting base is A first positioning tab and a second positioning tab of the collar, each extending axially distally from the main portion of the collar, and each tab including an angled wedge surface, A surgical tool comprising a detent notch defining a bias surface and a detent plunger positioned on the inner diameter of the annular collar. [Claim 42] The surgical tool according to claim 41, wherein each tab includes an angled wedge surface. [Claim 43] The surgical tool according to claim 42, wherein each tab has a tab centerline that is substantially symmetrical, and each tab has two angled wedge surfaces. [Claim 44] The surgical tool according to claim 43, wherein the centerlines of both tabs are at a predetermined distance below the mounting shaft, on the opposite side of the mounting shaft from the pivot axis. [Claim 45] The surgical tool according to any one of claims 41 to 44, wherein the detent plunger is positioned on the collar. [Claim 46] The surgical tool according to any one of claims 41 to 45, wherein the safety switch is slidably disposed inside the lever. [Claim 47] The surgical tool according to claim 46, wherein the lever extension is slidably positioned outside the lever. [Claim 48] A housing comprising two receptive channels formed at its proximal end, wherein the receptive channels are at least partially defined by a circumferential wall, the channels extend axially away from the proximal end of the housing toward the distal end of the housing, the first side surface of each channel defining its first channel contact point, and the second side surface of each channel defining its second channel contact point, Each positioning tab extends a second predetermined length distally, each tab including a first side surface defining a first tab contact point and a second side surface defining a second tab contact point, wherein when the collar is engaged with the housing, each first tab contact point is in contact with the first channel contact point of the respective channel, and each second tab contact point is in contact with the second channel contact point of the respective channel, The surgical tool according to any one of claims 41 to 47, further comprising a detent plunger disposed in the inner diameter of the collar and an inclined groove defining a bias surface. [Claim 49] The surgical tool according to claim 48, wherein the notch of the housing defines the bias surface, and the detent plunger is positioned on the inner diameter of the collar. [Claim 50] The surgical tool according to claim 49, wherein the bias surface is partially distally facing and is engaged by the plunger when the respective contact points are engaged. [Claim 51] An electrical connector for surgical tools, A cable end receiver extending in the axial direction, An inner sleeve including an elastic clip containing a first retaining wedge, A pin holder, fixed to the inner sleeve, includes a core and a plurality of pins fixed to the core, An electrical connector comprising a cable end receiver, the outer sleeve which slidably receives substantially the entire cable end receiver, the outer sleeve which includes a first window for receiving the retaining wedge, and which has a slidable range relative to the receiver, the range extending from a latched position in which the wedge is substantially axially aligned with the window to a released position in which the wedge is axially offset from alignment with the window. [Claim 52] The electrical connector according to claim 51, wherein the cable end receiver further includes a bushing disposed between the pin holder and the inner sleeve. [Claim 53] The electrical connector according to claim 52, wherein the bushing includes a cable engagement foot extending radially inward for engaging a cable having a conductor to be connected to the pin. [Claim 54] The electrical connector according to claim 52, wherein the bushing is completely located within the inner sleeve. [Claim 55] The electrical connector according to any one of claims 51 to 54, wherein the open position of the outer sleeve relative to the cable end receiver is proximal to the latched position of the outer sleeve. [Claim 56] The electrical connector according to any one of claims 51 to 55, wherein in the released position, the inclined surface of the wedge engages with the second surface of the window, and the stop surface of the wedge is spaced apart from the first surface of the window. [Claim 57] The electrical connector according to any one of claims 51 to 56, wherein the cable end receiver further includes a retaining nut positioned on the inner sleeve and screwed therein. [Claim 58] The electrical connector according to any one of claims 51 to 57, wherein the outer sleeve has a raised alignment surface. [Claim 59] The electrical connector according to any one of claims 51 to 58, wherein the elastic clip further includes a beam fixed to the inner sleeve at both ends, and the wedge is fixed to the beam between its ends. [Claim 60] The electrical connector according to claim 51, wherein the inner sleeve further includes a second wedge, and the outer sleeve includes a second window. [Claim 61] An electrical cable assembly for use with surgical tools, A cable containing multiple conductors, Including a connector, the connector is A cable end receiver extending in the axial direction, An inner sleeve including an elastic clip containing a first retaining wedge, A pin holder comprising a core and a plurality of pins fixed to the core, wherein the pin holder is fixed to the inner sleeve and fully positioned therein, A cable end receiver comprising an outer sleeve that slidably receives substantially the entire cable end receiver, including a first window for receiving the retaining wedge, having a slidable range relative to the receiver, the range extending from a latched position where the wedge is substantially axially aligned with the window to a released position where the wedge is axially offset from alignment with the window, An electrical cable assembly in which multiple conductors are electrically connected to multiple pins. [Claim 62] The electrical cable assembly according to claim 61, wherein the cable end receiver further includes a bushing disposed between the pin holder and the inner sleeve. [Claim 63] The electrical cable assembly according to claim 62, wherein the bushing includes a cable engagement foot extending radially inward for engaging a cable connected to the pin. [Claim 64] The electrical cable assembly according to claim 62, wherein the bushing is completely located within the inner sleeve. [Claim 65] The electrical cable assembly according to any one of claims 61 to 64, wherein the open position of the outer sleeve relative to the cable end receiver is proximal to the latched position of the outer sleeve. [Claim 66] The electrical cable assembly according to any one of claims 61 to 65, wherein in the released position, the inclined surface of the wedge engages with the second surface of the window, and the stopping surface of the wedge is spaced apart from the first surface of the window. [Claim 67] The electrical cable assembly according to any one of claims 61 to 66, wherein the cable end receiver further includes a retaining nut positioned on the inner sleeve and screwed therein. [Claim 68] The electrical cable assembly according to any one of claims 61 to 67, wherein the outer sleeve has a raised alignment surface. [Claim 69] The electrical cable assembly according to any one of claims 61 to 68, wherein the elastic clip further includes a beam fixed to the inner sleeve at both ends, and the wedge is fixed to the beam between its ends. [Claim 70] The electrical cable assembly according to any one of claims 61 to 69, wherein the inner sleeve further includes a second wedge, and the outer sleeve includes a second window. [Claim 71] A surgical system comprising a handpiece and a connector, The handpiece includes a housing, an electrically driven motor located therein, and a cable assembly including a cable with multiple conductors. The aforementioned connector is A cable end receiver extending in the axial direction, An inner sleeve including an elastic clip containing a first retaining wedge, A pin holder comprising a core and a plurality of pins fixed to the core, wherein the pin holder is fixed to the inner sleeve and fully positioned therein, and the cable end receiver comprising a pin holder, An outer sleeve that slidably receives substantially the entire cable end receiver, including a first window for receiving the retaining wedge, having a slidable range relative to the receiver, the range extending from a latched position where the wedge is substantially axially aligned with the window to a released position where the wedge is axially offset from alignment with the window, A surgical system in which multiple conductors are electrically connected to multiple pins. [Claim 72] The surgical system according to claim 71, wherein the cable end receiver further includes a bushing disposed between the pin holder and the inner sleeve. [Claim 73] The surgical system according to claim 72, wherein the bushing includes a cable engagement foot extending radially inward for engaging a cable connected to the pin. [Claim 74] The surgical system according to claim 72, wherein the bushing is completely located within the inner sleeve. [Claim 75] The surgical system according to any one of claims 71 to 74, wherein the release position of the outer sleeve relative to the cable end receiver is proximal to the latch position of the outer sleeve. [Claim 76] The surgical system according to any one of claims 71 to 75, wherein in the released position, the inclined surface of the wedge engages with the second surface of the window, and the stopping surface of the wedge is spaced apart from the first surface of the window. [Claim 77] The surgical system according to any one of claims 71 to 76, wherein the cable end receiver further comprises a retaining nut positioned on the inner sleeve and screwed therein. [Claim 78] The surgical system according to any one of claims 71 to 77, wherein the outer sleeve has a raised alignment surface. [Claim 79] The surgical system according to any one of claims 71 to 78, wherein the elastic clip further includes a beam fixed to the inner sleeve at both ends, and the wedge is fixed to the beam between its ends. [Claim 80] The surgical system according to any one of claims 71 to 79, wherein the inner sleeve further comprises a second wedge, and the outer sleeve comprises a second window.

Claims

1. A hand switch for an electric surgical handpiece, The mounting base includes an annular collar that defines a pivot axis and a mounting axis substantially perpendicular to the direction of the pivot axis, the collar being sized for a slidable position on the proximal end of the electric surgical handpiece in the direction of the mounting axis, An elongated lever whose proximal end is pivotably connected to the mounting base, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, Includes a safety switch slidably positioned on the lever, The aforementioned mounting base is A first positioning tab and a second positioning tab of the collar, each extending axially distally from the main portion of the collar, and each tab including an angled wedge surface, A hand switch further comprising a detent notch defining a bias surface and a detent plunger disposed on the inner diameter of the annular collar.

2. The hand switch according to claim 1, wherein each tab includes an angled wedge surface.

3. The hand switch according to claim 2, wherein each tab has a tab centerline that is substantially symmetrical, and each tab has two angled wedge surfaces.

4. The hand switch according to claim 3, wherein the centerlines of both tabs are at a predetermined distance below the mounting shaft, on the opposite side of the mounting shaft from the pivot axis.

5. The hand switch according to any one of claims 1 to 4, wherein the detent plunger is arranged in the collar.

6. The hand switch according to any one of claims 1 to 4, wherein the safety switch is slidably disposed inside the lever.

7. The hand switch according to claim 6, wherein the lever extension is slidably positioned on the outside of the lever.

8. A surgical tool comprising an electric surgical handpiece and a hand switch, The aforementioned electric surgical handpiece is A handpiece housing that extends longitudinally along the housing axis, The housing includes a magnetic field sensor, The aforementioned hand switch is The mounting base includes an annular collar that defines a pivot axis and a mounting axis substantially perpendicular to the direction of the pivot axis, the collar being sized for a position slidable on the proximal end of the handpiece housing in the direction of the mounting axis, An elongated lever whose proximal end is pivotably connected to the mounting base, Between the base and the lever, a spring is provided that applies a bias to the lever around the pivot axis, Includes a safety switch slidably positioned on the lever, The aforementioned mounting base is A first positioning tab and a second positioning tab of the collar, each extending axially distally from the main portion of the collar, and each tab including an angled wedge surface, A surgical tool comprising a detent notch defining a bias surface, and a detent plunger positioned on the inner diameter of the annular collar.

9. The surgical tool according to claim 8, wherein each tab includes an angled wedge surface.

10. The surgical tool according to claim 9, wherein each tab has a tab centerline that is substantially symmetrical, and each tab has two angled wedge surfaces.

11. The surgical tool according to claim 10, wherein the centerlines of both tabs are at a predetermined distance below the mounting shaft, on the opposite side of the mounting shaft from the pivot axis.

12. The surgical tool according to any one of claims 8 to 11, wherein the detent plunger is positioned on the collar.

13. The surgical tool according to any one of claims 8 to 11, wherein the safety switch is slidably disposed inside the lever.

14. The surgical tool according to claim 13, wherein the lever extension is slidably positioned on the outside of the lever.

15. A housing comprising two receptive channels formed at its proximal end, wherein the receptive channels are at least partially defined by a circumferential wall, the channels extend axially away from the proximal end of the housing toward the distal end of the housing, the first side surface of each channel defining its first channel contact point, and the second side surface of each channel defining its second channel contact point, Each positioning tab extends a second predetermined length distally, each tab including a first side surface defining a first tab contact point and a second side surface defining a second tab contact point, wherein when the collar is engaged with the housing, each first tab contact point is in contact with the first channel contact point of the respective channel, and each second tab contact point is in contact with the second channel contact point of the respective channel, The surgical tool according to any one of claims 8 to 11, further comprising a detent plunger disposed in the inner diameter of the collar and an inclined groove defining a bias surface.

16. The surgical tool according to claim 15, wherein the notch of the housing defines the bias surface, and the detent plunger is positioned on the inner diameter of the collar.

17. The surgical tool according to claim 16, wherein the bias surface is partially distally facing and is engaged by the plunger when the respective contact points are engaged.

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