CN110429015B - Switch assembly of surgical instrument and surgical instrument - Google Patents
Switch assembly of surgical instrument and surgical instrument Download PDFInfo
- Publication number
- CN110429015B CN110429015B CN201910815193.9A CN201910815193A CN110429015B CN 110429015 B CN110429015 B CN 110429015B CN 201910815193 A CN201910815193 A CN 201910815193A CN 110429015 B CN110429015 B CN 110429015B
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- Prior art keywords
- button
- toggle
- button unit
- unit
- surgical instrument
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- 230000005540 biological transmission Effects 0.000 claims description 40
- 230000007246 mechanism Effects 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 6
- 240000007643 Phytolacca americana Species 0.000 claims description 2
- 235000009074 Phytolacca americana Nutrition 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 210000003811 finger Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000011748 cell maturation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
- H01H89/02—Combination of a key operated switch with a manually operated switch, e.g. ignition and lighting switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/967—Switches controlled by moving an element forming part of the switch having a plurality of control members, e.g. keyboard
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
- H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
- H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Dentistry (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Push-Button Switches (AREA)
- Switches With Compound Operations (AREA)
Abstract
The invention provides a switch assembly of a surgical instrument and the surgical instrument, which comprise a supporting seat, a button unit, a poking button unit and a pressing button unit, wherein the button unit, the poking button unit and the pressing button unit are arranged on the supporting seat; the press button unit has at least two selection positions, and can be switched between the selection positions by the linear motion of the press button, and is kept at one of the selection positions when no external force is applied. The invention divides the operation control of the switch component into three different functional units by the traditional two operation units, the three functional units have different operation modes, and the selection positions of the single units are reduced, so that the selection of the functional positions is more accurate, and misoperation is avoided.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a switch assembly of a surgical instrument and the surgical instrument.
Background
The surgical saw is a common surgical operation mode for orthopaedics, and the operation control of the forward rotation, the reverse rotation, the reciprocating rotation, the locking and other states of the surgical saw are usually required to be realized; the existing orthopaedics drill saw power mobile phone is of a double-button structure, under the control of an external power supply and an external control system, the double-button switch structure is combined to achieve four working states, namely full lock, forward rotation, reverse rotation and reciprocating rotation, one button is a forward rotation button, the other button is a reverse rotation button, the two buttons are simultaneously pressed to reciprocate, and the rotating speed is controlled through the pressing degree of the buttons.
The double-button structure is complex to select and can be pressed by mistake; when the double buttons are pressed simultaneously, the speed is not convenient to control, two fingers are occupied, and the human engineering is not reasonable.
Disclosure of Invention
In view of the above-described deficiencies of the prior art, it is an object of the present invention to provide a switch assembly for a surgical instrument that refines the functional differentiation of the buttons, reducing or avoiding the possibility of malfunction.
To achieve the above object and other related objects, the present invention provides the following technical solutions:
the switch assembly of the surgical instrument comprises a supporting seat, a button unit, a poking button unit and a pressing button unit, wherein the button unit is arranged on the supporting seat and comprises a button and a reset element for resetting after the button is pressed, the poking button unit is provided with at least two poking positions and can be switched among the poking positions through rotation of the poking button, and the poking button unit is kept at one poking position when not subjected to external force; the press button unit has at least two selection positions, and can be switched between the selection positions by linear movement of the press button.
According to the invention, the operation control of the switch assembly is divided into three different functional units by the traditional two operation units, the three functional units have different operation modes, and the selection position of each group of operation components is reduced, so that the selection of the functional position is more accurate, and the misoperation is reduced; the traditional double-button unit is reduced to be a button unit, so that the situation of misoperation of buttons during use is avoided, and the operation is more accurate; the hand-held mobile phone is more stable by using one button, and accords with the ergonomics.
Optionally, the axis of the rotation axis when the dial unit is dialed is coincident with or parallel to the axis of the button unit, and the pressing direction of the press button unit is perpendicular to the axis of the button unit.
Optionally, the button unit further comprises an execution rod connected with the button, the support seat is provided with a through center hole, the execution rod is arranged in the center hole and can reciprocate along the center hole, and the support seat is provided with a limiting structure for limiting the reciprocating range of the execution rod; the first end of the actuating rod is connected with the button, and the second end is an actuating part or is provided with a first button trigger element.
Optionally, the knob unit comprises a knob and a first holding mechanism for holding the knob in one of the positions.
Optionally, the knob unit further includes a transmission sleeve coaxially disposed in the central hole with the actuating rod, the transmission sleeve is located at the periphery of the actuating rod, the transmission sleeve can rotate along the axis of the transmission sleeve relative to the supporting seat, one end of the transmission sleeve is connected with the knob, and the other end of the transmission sleeve extends out of the central hole and is connected with a first knob triggering element.
Optionally, grooves corresponding to each toggle position are formed in the toggle button along the rotation direction, the first retaining mechanism is arranged in a first mounting hole formed in the supporting seat, and the first retaining mechanism extends into one of the grooves.
Optionally, the first retaining mechanism is a steel ball spring structure; or the first retaining mechanism is a propping pin and a first spring which are propped against each other, the first spring is arranged in the mounting hole, and the propping pin partially stretches into the groove.
Optionally, a stop step is arranged on the inner wall of the transmission sleeve, one end of the reset element is propped against the stop step, and the other end of the reset element is propped against the button; the actuating lever is provided with a limiting part for limiting the actuating lever to slide out of the supporting seat, and the limiting part is propped against one side of the stop step, which is away from the reset element.
Optionally, the press button unit includes a press button and a second holding mechanism for holding the press button in one of the positions, the press button is directly or indirectly connected with a first press button trigger element, the press button is provided with a clamping position corresponding to each selection position along the pressing direction, and the second holding mechanism is clamped in one of the clamping positions.
Optionally, the press button unit further comprises a transmission seat, the transmission seat is rotatably installed on the supporting seat through a rotating shaft, the press button is meshed with the transmission seat through a latch, and a first press button triggering element is arranged on the transmission seat.
Optionally, the second holding mechanism is installed in a second installation hole formed in the supporting seat, and the second holding mechanism is of a steel ball spring structure; or the second holding mechanism includes a second spring and a detent, the second spring causing the detent to snap into the detent.
Optionally, a pressing component for adjusting the pretightening force of the second holding mechanism is arranged in the second mounting hole, and the pressing component is in threaded fit with the second mounting hole.
Optionally, a first limiting structure for limiting the rotation of the button unit is arranged on the supporting seat.
Optionally, a second limiting structure for limiting the rotation range of the dial knob unit is arranged on the supporting seat.
Optionally, the switch assembly of the surgical instrument further comprises a circuit board, the button unit and the circuit board are provided with corresponding button trigger element groups, the toggle unit and the circuit board are provided with corresponding toggle trigger element groups, and the toggle trigger element groups form trigger positions corresponding to all toggle positions; the press button unit and the circuit board are provided with corresponding press button trigger element groups, and the press button trigger element groups form trigger positions corresponding to the selection positions.
The invention also provides a surgical instrument, which comprises the switch assembly of the surgical instrument.
As described above, the present invention divides the operation control of the switch assembly into three different functional units from the conventional two operation units, the three functional units have different operation modes, and the selection position of each group of operation components is reduced, so that the selection of the functional bits is more accurate, and the misoperation is reduced; the traditional double-button unit is reduced to be a button unit, so that the situation of misoperation of buttons during use is avoided, and the operation is more accurate; the hand-held mobile phone is more stable by using one button, and accords with the ergonomics.
Drawings
FIG. 1 is a front view of one embodiment of a switch assembly of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a view B-B of FIG. 2;
FIG. 4 is a perspective view of one embodiment of a switch assembly of the present invention;
FIG. 5 is a bottom view (with the circuit board omitted) of one embodiment of the switch assembly of the present invention;
FIG. 6 is a schematic diagram illustrating the cooperation of the trigger element and the sensing element;
FIG. 7 is a schematic view of the structure of a button in one embodiment of the switch assembly of the present invention;
FIGS. 8 and 9 are perspective views of a toggle in one embodiment of a switch assembly of the present invention;
FIG. 10 is a schematic view of a press button in an embodiment of a switch assembly according to the present invention;
FIG. 11 is a schematic view of the installation of the switch assembly of the present invention with the handle of a surgical instrument.
Part number description:
1-a supporting seat; 21-a button; 211-a guide slot; 212-pin holes; 22-an actuator lever; 23-a reset element; 24-a first button trigger; 25-pin shafts; 26-a limiting pin; 31-a toggle; 32-a transmission sleeve; 33-mounting seats; 34-connecting sleeve; 35-a first toggle trigger element; 36-ejector pins; 37-a first spring; 38-grooves; 39-limit grooves; 41-pressing a button; 411-clamping; 412-latch; 42-a transmission seat; 421-drive teeth; 43-rotating shaft; 44-a first push button trigger element; 45-bayonet lock; 46-a second spring; 47-a pressing member; 5-a circuit board; 51-a second button trigger; 52-a second toggle trigger element; 53-a second push button trigger element; 6-end caps; 7-connecting rods; a 100-switch assembly; 200-handle.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Examples
As shown in fig. 1 to 4, a switch assembly of a surgical instrument is exemplarily provided in this embodiment, and is used for controlling the operation of the surgical instrument under the operation conditions, where the operation conditions may include forward rotation, reverse rotation, locking, starting and stopping of the motor, rotation speed adjustment, reciprocating rotation or non-reciprocating rotation of the motor, etc., but different instruments have different functions and different corresponding setting manners. The switch assembly comprises a supporting seat 1, a button unit, a poking button unit and a pressing button unit, wherein the button unit is arranged on the supporting seat 1 and comprises a button and a reset element for restoring after the button is pressed, the button unit is used for start-stop control or speed regulation operation, the poking button unit is provided with at least two poking positions and can be switched among the poking positions through rotation of the poking button, and the poking button unit is kept at one poking position when not subjected to external force; the press button unit has at least two selection positions, and can be switched between the selection positions by linear movement of the press button.
According to the invention, the operation control of the switch assembly is divided into three different functional units by the traditional two operation units, and the three functional units have no same operation modes, so that misoperation can be avoided in the operation modes due to the difference of the operation modes; compared with the traditional structure, the number of the selection bits of each operation unit is reduced, so that the selection of the function bits is more accurate, and misoperation is reduced; the traditional double-button unit is reduced to be a button unit, so that the situation of misoperation of buttons during use is avoided, and the operation is more accurate; the hand-held mobile phone is more stable by using one button, and accords with the ergonomics.
The example aims at providing an operation mode of combining a button, a poking button and a pressing button, wherein the poking button unit is provided with at least two poking positions which can be selected; the press button unit is provided with at least two selectable selection positions, and the functions corresponding to the toggle position and the selection positions can be matched according to specific functions when the press button unit is applied to different surgical instruments.
One of the two operating units of the toggle unit and the push button unit can be used for controlling the reciprocating rotation and the non-reciprocating rotation, and the other operating unit is used for controlling the forward rotation, the reverse rotation and the safety position.
In one embodiment, the toggle unit has two toggle positions, one of which corresponds to a reciprocating rotation and the other corresponds to a non-reciprocating rotation, and is switchable between the two toggle positions when operated and maintained in one of the toggle positions when not subjected to an external force; the press button unit is provided with three selection positions which correspond to the forward rotation position, the reverse rotation position and the safety position respectively, can be switched between the three selection positions when the press button unit is operated, and can be kept at one of the selection positions when the press button unit is not acted by external force.
In another embodiment, the press button unit has two toggle positions, wherein one toggle position corresponds to a reciprocating rotation, the other toggle position corresponds to a non-reciprocating rotation, and the press button unit can be switched between the two toggle positions when operated and is kept at one toggle position when not subjected to external force; the toggle unit has three selection positions corresponding to the forward rotation, the reverse rotation and the safety position, and can be switched between the three selection positions when the toggle unit is operated, and can be maintained at one of the selection positions when the toggle unit is not acted by external force.
Wherein the button unit and the toggle unit are generally used for the operation of a forefinger of a human hand, and the button pressing unit is generally used for the operation of a thumb; therefore, the axis of the rotating shaft 43 when the knob unit is turned can be coincident with or parallel to the axis of the knob unit, and when the axis of the knob unit is taken as the rotation axis, the structure can be more compact, and the pressing direction of the knob unit is perpendicular to the axis of the knob unit. That is, when the switch assembly is mounted on the handle, the pressing direction of the button unit is approximately the front-rear direction, and the pressing direction of the push button unit is the left-right direction, so that the misoperation can be avoided to the greatest extent in three different operation modes.
The switch assembly further comprises a circuit board 5, the button unit, the toggle unit and the press button unit are respectively provided with a first trigger element, the circuit board 5 is provided with a second trigger element corresponding to the first trigger elements of the units, the trigger modes of the first trigger element and the second trigger element can be contact type or non-contact type, such as a micro switch and the like, and the non-contact type, such as a magnet, a Hall element, a photoelectric switch and the like.
In this example, the toggle unit is used to control the reciprocating rotation and the non-reciprocating rotation, the push button unit is used to control the forward rotation, the reverse rotation and the safety position, and the principle is similar when the control of the two operation units is exchanged.
In this example, the button unit is provided with a first button trigger element 24, and the circuit board 5 is provided with a second button trigger element 51; the toggle unit is provided with a first toggle trigger element 35, and the circuit board 5 is provided with a corresponding second toggle trigger element 52; the press button unit is provided with a first press button trigger element 44, the circuit board 5 is provided with two second press button trigger elements 53, the two second press button trigger elements 53 respectively correspond to forward rotation and reverse rotation, and the empty space corresponds to a safety position.
The button unit comprises a button 21, an execution rod 22 and a reset element 23, wherein the button 21 is used for being pressed by a finger, the execution rod 22 is connected with the button 21 for synchronous action, and the reset element 23 is used for resetting after the button 21 and the execution rod 22 are pressed down; wherein, the supporting seat 1 is provided with a central hole penetrating through the supporting seat 1, the actuating rod 22 is arranged in the central hole and can axially reciprocate along the central hole, the button 21 is exposed outside the supporting seat 1, a first end of the actuating rod 22 is fixedly connected with the button 21, and a second end of the actuating rod is provided with a first button trigger element 24. Specifically, a pin hole 212 is formed in the button 21 in a direction perpendicular to the actuating rod 22, and a first end of the actuating rod 22 is inserted into the button 21 and fixed by a pin shaft 25 penetrating through the pin hole 212; wherein, the reset element 23 is disposed between the support base 1 and the button 21, generates a reset elastic force to the button 21, and a limiting structure is disposed between the actuating rod 22 and the support base 1, for preventing the actuating rod 22 from being separated from the support base 1 along the axial direction, and limiting the reciprocating range of the actuating rod 22. When the button 21 is pressed, the actuating rod 22 drives the first button trigger element 24 to move towards the second button trigger element 51 on the circuit board 5, and when the button 21 is released, the button 21 is reset under the action of the reset element 23 and is far away from the second button trigger element 51.
The circuit board 5 and the button 21 are respectively positioned at two opposite sides of the supporting seat 1, and the circuit board 5 is connected with the supporting seat 1 through the connecting rod 7. To facilitate stepless speed regulation, the first button trigger element 24 is a magnet, such as magnetic steel; the second button trigger element 51 is a hall element.
To limit the rotation of the push button 21 and the actuating lever 22, a first limit structure is further provided between the push button unit and the support base 1, in this example, the push button 21 has a push button cap and a lever portion, a guide slot 211 is provided on the lever portion along an axis, a limit pin 26 is mounted on the support base 1 along a direction perpendicular to the lever portion, and the limit pin 26 extends into the guide slot 211, so that the push button 21 can reciprocate axially but cannot rotate, as shown in fig. 2 and 7.
In this example, the knob unit includes a knob 31 and a first holding mechanism for holding the knob 31 in one of the knob positions, the knob 31 is at least partially exposed outside the support base 1 and partially extends into the support base 1, and the knob 31 is directly or indirectly connected with a first knob trigger element 35.
The toggle button 31 is provided with grooves 38 corresponding to two toggle positions along the rotation direction, the first retaining mechanism is arranged in a first mounting hole formed in the support seat 1, and the first retaining mechanism extends into one of the grooves 38 to enable the first retaining mechanism to be kept at one toggle position, and the toggle button 31 cannot rotate when not subjected to external force.
The trigger elements corresponding to the toggle unit, the push button unit and the push button unit can be arranged on the same circuit board 5 or can be arranged separately. The toggle mode of the toggle button may be a touch switch mode, for example, when the second toggle button triggering element 52 is a micro switch, the toggle button 31 may be directly connected to the first toggle button triggering element 35, and the first toggle button triggering element 35 touches the micro switch to select to rotate reciprocally or not reciprocally, and when the first toggle button triggering element 35 leaves the micro switch, another mode is selected, and at this time, the first toggle button triggering element 35 is a contact portion.
In this example, for easy installation, the second toggle element 52 is still a hall element and is disposed on the same circuit board 5 as the second button element 51, and the first toggle element 35 is a magnet, such as magnetic steel. When the first toggle trigger element 35 rotates to correspond to the second toggle trigger element 52, the first toggle trigger element 35 is reciprocally rotated, and when the first toggle trigger element 35 leaves the position corresponding to the second toggle trigger element 52, the first toggle trigger element is non-reciprocally rotated, as shown in fig. 6; wherein the rotation center line of the toggle 31 may be parallel or concentric with the axis of the actuating lever 22.
In order to facilitate the setting of the first toggle element 35, the toggle unit further comprises a transmission sleeve 32 coaxially arranged in the central hole with the actuating lever 22, the transmission sleeve 32 being located at the periphery of the actuating lever 22, and being capable of mutually independent actions with the actuating lever 22; the transmission sleeve 32 can rotate along the axis of the transmission sleeve 32 relative to the supporting seat 1, and a sealing ring can be arranged between the transmission sleeve 32 and the inner wall of the central hole so as to seal; one end of the transmission sleeve 32 is connected with the toggle 31, the other end extends out of the central hole, and the part extending out of the central hole is provided with the first toggle trigger element 35.
In order to facilitate the limit setting of the actuating lever 22 and the assembly, the transmission sleeve 32 in this example is divided into two parts, one part is connected with the pulling button 31 into a whole; the other part is connected with the mounting seat 33 into a whole, the first toggle trigger element 35 is arranged on the mounting seat 33, two parts of the transmission sleeve 32 are connected through the connecting sleeve 34, specifically, one end of the connecting sleeve 34 is provided with external threads, the other end is provided with a step, the threaded end is connected with the transmission sleeve 32, the step is propped against a boss on the inner wall of the mounting seat 33, thus the transmission sleeve 32 and the mounting seat 33 are tensioned, the actuating rod 22 passes through the connecting sleeve 34, one end of the reset element 23 is propped against a stop step arranged on the inner wall of the transmission sleeve 32 or the end surface of the connecting sleeve 34, and the other end is propped against the button 21; the actuating lever 22 is provided with a limiting part for limiting the sliding out of the actuating lever 22, the limiting part is propped against a step on one side of the connecting sleeve 34, which is away from the reset element 23, wherein the reset element 23 is a reset spring, as shown in fig. 3.
In order to limit the rotation range of the knob 31, a limit groove 39 is formed in the transmission sleeve 32 along the circumferential direction, a limit pin 26 is arranged on the corresponding support seat 1, and the limit pin 26 stretches into the limit groove 39 to limit the rotation range of the transmission sleeve 32 and the knob 31.
In one embodiment, the first retaining mechanism is a steel ball spring structure, the spring compresses the steel balls in the grooves 38, and the corresponding grooves 38 are spherical; in another embodiment, the first retaining mechanism is a top pin 36 and a first spring 37, the first spring 37 is disposed in the mounting hole, the first spring 37 compresses the top pin 36 in the groove 38, in order to enhance the toggle feel, one end of the top pin 36 facing the groove 38 is a conical surface, and the groove 38 is conical, as shown in fig. 2, 8 and 9.
In one embodiment, the press button unit includes a press button 41 and a second holding mechanism for holding the press button 41 at one of the selection positions, wherein the press button 41 is directly or indirectly connected with a first press button triggering element 44, the press button 41 is provided with a clamping position 411 corresponding to the three selection positions along the pressing direction, the second holding mechanism is clamped in one of the clamping positions 411, and the press button 41 does not move when no external force is applied.
In this example, the press button unit further includes a transmission seat 42, the transmission seat 42 is rotatably mounted on the support seat 1 through a rotating shaft 43, the rotating shaft 43 is parallel to the execution rod 22, the press button 41 and the transmission seat 42 are correspondingly provided with latches 412 and 421, the two are engaged through the latches 412 and 421, and the first press button trigger element 44 is disposed on the transmission seat 42. When the push button 41 is operated, the first push button trigger member 44 is rotated by the transmission seat 42 to select between the forward rotation, reverse rotation and safety positions, as shown in fig. 3 and 5.
Likewise, the first push button trigger element 44 and the second push button trigger element 53 may be contact type or non-contact type, and the contact type may be a contact type switch, such as a micro switch; the noncontact type may employ a magnet and a hall element, or a photoelectric switch, or the like.
One of the three locking positions 411 of the push button 41 corresponds to forward rotation, the other one corresponds to reverse rotation, and the last one corresponds to a locked safety position, and is not rotated. Taking the hall elements as an example, the second push button trigger element 53 is distributed in such a way that two hall elements respectively correspond to forward rotation and reverse rotation, and a space between the two hall elements corresponds to a safety position, when the first push button trigger element 44 rotates to correspond to one of the hall elements (the push button rotates to the clamping positions 411 on two sides), the first push button trigger element is forward rotated or reverse rotated, and when the first push button trigger element rotates to the space (the push button is positioned at the middle clamping position 411), the first push button trigger element is locked. The selection is shown in fig. 6.
Wherein, the press button 41 has a rod-shaped structure, the clamping position 411 is arranged at one side of the press button 41, and the clamping teeth 412 are arranged at one side of the press button 41 adjacent to and perpendicular to the clamping position 411, as shown in fig. 10.
The second retaining mechanism is arranged in a second mounting hole formed in the supporting seat 1, and is of a steel ball spring structure; in another embodiment, the second holding mechanism includes a second spring 46 and a latch 45, where the second spring 46 makes the latch 45 snap into a latch 411, and in order to enhance the feel, the latch 411 is a substantially V-shaped groove, and the end section of the corresponding latch 45 is V-shaped, and the mating surface of the press button 41 and the latch 45 has a wavy shape, as shown in fig. 3 and 10.
In this example, for the convenience of adjusting the clamping force to the press button 41, the second mounting hole is a through hole, a pressing component 47 for adjusting the pretightening force of the second holding mechanism is disposed in the second mounting hole, the pressing component 47 is in threaded fit with the second mounting hole, specifically, the pressing component 47 is a pressing screw, and the pressing screw abuts against one end of the second spring 46 away from the bayonet lock 45, as shown in fig. 3.
Wherein, the end cover 6 is installed on the support seat 1 at one side of the button 21 and the knob 31, the button 21 is located outside the end cover 6, the end cover 6 limits the axial position of the knob 31, and the operating part of the knob 31 extends out of the side surface of the end cover 6.
The invention also provides a surgical instrument, which comprises the switch assembly 100, wherein the switch assembly 100 is arranged on a handle 200 of the surgical instrument, a button 21 is positioned at the front side of the grip of the handle, a press button 41 extends out of the left side and the right side of the handle, and a poking button 31 pokes by taking the axis of the button 21 as a rotation center, as shown in fig. 11.
As shown in fig. 6, the first button trigger element 24 is driven by the button 21 to approach or depart from the second button trigger element 51, so as to realize speed adjustment, the distance between the magnet and the hall element is changed, the voltage of the hall element is correspondingly changed, and stepless speed regulation of the motor is realized through the change of the voltage; the first toggle trigger element 35 is driven by the toggle 31 to switch between a position corresponding to the second toggle trigger element 52 and a position away from the second toggle trigger element 52, so that the selection of reciprocating rotation and non-reciprocating rotation is realized; the first push button trigger element 44 is driven by the push button 41 to switch between the two second push button trigger elements 53 and the empty space, so that the selection of forward rotation, reverse rotation and safety position is realized.
The safety position of the press button is a first priority, and as long as the press button is positioned at the safety position, the operation button and the dial button do not work; the reciprocating rotation and the non-reciprocating rotation of the dial knob are selected as the second priority, and the forward rotation and the reverse rotation of the press knob can only work at the non-reciprocating rotation of the dial knob; when the press button is in a safe position, the press button does not work, and the stepless speed regulation function can be realized when the dial button and the press button are at other positions.
The invention divides the operation control of the switch assembly into three different functional units of speed regulation, reciprocating rotation control and positive and negative rotation by the traditional two operation units, and the three functional units have no same operation mode, and can avoid misoperation in operation due to different operation modes; compared with the traditional structure, the number of the selection bits of each operation unit is reduced, so that the selection of the function bits is more accurate, and misoperation is reduced; the traditional double-button unit is reduced to be a button unit, so that the situation of misoperation of buttons during use is avoided, and the speed regulation is more accurate; the hand-held mobile phone is more stable by using one button, and accords with the ergonomics.
Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (11)
1. A switch assembly for a surgical instrument, characterized by: the push button comprises a support seat, a button unit, a poking button unit and a pressing button unit, wherein the button unit is arranged on the support seat and comprises a button and a reset element for resetting after the button is pressed, the poking button unit is provided with at least two poking positions and can be switched among the poking positions through rotation of the poking button, and the poking button unit is kept at one poking position when not subjected to external force; the press button unit is provided with at least two selection positions, can be switched among the selection positions through the linear motion of the press button, and is kept at one of the selection positions when no external force is applied; the axis of the rotating shaft when the poking button unit pokes is coincident with or parallel to the axis of the button unit, and the pressing direction of the pressing button unit is perpendicular to the axis of the button unit; the button unit is used for start-stop control or speed regulation operation, and one of the two operation units of the poking button unit and the pressing button unit is used for controlling reciprocating rotation and non-reciprocating rotation, and the other operation unit is used for controlling forward rotation, reverse rotation and safety positions.
2. The surgical instrument switch assembly of claim 1, wherein: the button unit further comprises an execution rod connected with the button, the support seat is provided with a through center hole, the execution rod is arranged in the center hole and can reciprocate along the center hole, and the support seat is provided with a limiting structure for limiting the reciprocating range of the execution rod; the first end of the actuating rod is connected with the button, and the second end is an actuating part or is provided with a first button trigger element.
3. The surgical instrument switch assembly of claim 1, wherein: the toggle unit includes a toggle and a first holding mechanism for holding the toggle in one of the positions.
4. A switch assembly for a surgical instrument as recited in claim 3, wherein: the dial button is provided with grooves corresponding to each toggle position along the rotation direction, the first retaining mechanism is arranged in a first mounting hole formed in the supporting seat, and the first retaining mechanism stretches into one of the grooves.
5. The surgical instrument switch assembly of claim 2, wherein: the toggle unit further comprises a transmission sleeve coaxially arranged in the central hole with the execution rod, the transmission sleeve is located on the periphery of the execution rod and can rotate along the axis of the transmission sleeve relative to the supporting seat, one end of the transmission sleeve is connected with the toggle, the other end of the transmission sleeve extends out of the central hole, and a first toggle triggering element is connected.
6. The surgical instrument switch assembly of claim 1, wherein: the press button unit comprises a press button and a second holding mechanism for holding the press button at one of the positions, wherein the press button is provided with clamping positions corresponding to each selection position along the pressing direction, and the second holding mechanism is clamped in one of the clamping positions.
7. The surgical instrument switch assembly of claim 6, wherein: the press button unit further comprises a transmission seat, the transmission seat is rotatably arranged on the supporting seat through a rotating shaft, the press button is meshed with the transmission seat through a latch, and a first press button triggering element is arranged on the transmission seat.
8. The surgical instrument switch assembly of claim 6, wherein: the second retaining mechanism is installed in a second installation hole formed in the supporting seat, a pressing part used for adjusting the pretightening force of the second retaining mechanism is arranged in the second installation hole, and the pressing part is in threaded fit with the second installation hole.
9. The surgical instrument switch assembly of claim 1, wherein: the support seat is provided with a first limiting structure for limiting the rotation of the button unit and a second limiting structure for limiting the rotation range of the toggle unit.
10. The surgical instrument switch assembly of any one of claims 1-9, wherein: the switch assembly of the surgical instrument further comprises a circuit board, the button unit and the circuit board are provided with corresponding button trigger element groups, the toggle unit and the circuit board are provided with corresponding toggle trigger element groups, and the toggle trigger element groups form trigger positions corresponding to all toggle positions; the press button unit and the circuit board are provided with corresponding press button trigger element groups, and the press button trigger element groups form trigger positions corresponding to the selection positions.
11. A surgical instrument, characterized by: a switch assembly comprising the surgical instrument of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815193.9A CN110429015B (en) | 2019-08-30 | 2019-08-30 | Switch assembly of surgical instrument and surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815193.9A CN110429015B (en) | 2019-08-30 | 2019-08-30 | Switch assembly of surgical instrument and surgical instrument |
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| Publication Number | Publication Date |
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| CN110429015A CN110429015A (en) | 2019-11-08 |
| CN110429015B true CN110429015B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910815193.9A Active CN110429015B (en) | 2019-08-30 | 2019-08-30 | Switch assembly of surgical instrument and surgical instrument |
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| CN (1) | CN110429015B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503635A (en) * | 1993-11-12 | 1996-04-02 | United States Surgical Corporation | Apparatus and method for performing compressional anastomoses |
| CN101185581A (en) * | 2006-11-17 | 2008-05-28 | 镱钛科技股份有限公司 | Lockable medical surgery apparatus |
| CN102614019A (en) * | 2010-12-17 | 2012-08-01 | 伊顿株式会社 | Surgical robot system and adaptive control method thereof |
| CN104508780A (en) * | 2012-06-19 | 2015-04-08 | 斯堪尼亚商用车有限公司 | Switch configuration |
| CN210325683U (en) * | 2019-08-30 | 2020-04-14 | 重庆西山科技股份有限公司 | Switch assembly of surgical instrument and surgical instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2117442A4 (en) * | 2007-02-06 | 2012-05-30 | Stryker Corp | Universal surgical function control system |
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2019
- 2019-08-30 CN CN201910815193.9A patent/CN110429015B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503635A (en) * | 1993-11-12 | 1996-04-02 | United States Surgical Corporation | Apparatus and method for performing compressional anastomoses |
| CN101185581A (en) * | 2006-11-17 | 2008-05-28 | 镱钛科技股份有限公司 | Lockable medical surgery apparatus |
| CN102614019A (en) * | 2010-12-17 | 2012-08-01 | 伊顿株式会社 | Surgical robot system and adaptive control method thereof |
| CN104508780A (en) * | 2012-06-19 | 2015-04-08 | 斯堪尼亚商用车有限公司 | Switch configuration |
| CN210325683U (en) * | 2019-08-30 | 2020-04-14 | 重庆西山科技股份有限公司 | Switch assembly of surgical instrument and surgical instrument |
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|---|---|
| CN110429015A (en) | 2019-11-08 |
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