CN210325583U - Button structure of surgical instrument - Google Patents

Abstract

The utility model provides a surgical instrument's button structure, include the supporting seat and locate button assembly and the pressure button subassembly on the supporting seat, the button subassembly includes the button and is used for the button to press the reset element that the back was replied, press the button subassembly including pressing button and second retaining mechanism, press the button subassembly to have two at least selection positions to can switch between each selection position through the linear motion of pressing the button, pass through when not receiving external force second retaining mechanism keeps in one of them selection position. The utility model changes the operation control of the button structure from the traditional double-button structure into the combination form of the button and the press button, and the two functional units have different operation modes, so that the selection of the functional position is more accurate, and the misoperation is reduced; the traditional double-button assembly is reduced to one button assembly, so that the condition of misoperation of the button during use is avoided, and the speed regulation is more accurate; the mobile phone can be held more stably by using one button, and the mobile phone is in line with ergonomics.

Description

Button structure of surgical instrument

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to button structure of surgical instruments.

Background

The surgical drill saw is a common surgical operation mode for orthopedics department, and generally needs to realize the operation control of forward rotation, reverse rotation, reciprocating rotation, locking and other states of the drill saw; the existing power mobile phone for the orthopedic drill saw is of a double-button structure, under the control of an external power supply and an external control system, a double-button switch structure is combined to realize four working states, namely full locking, 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 rotate in a reciprocating manner, and the rotating speed is controlled through the pressing degree of the buttons.

The selection of the double-button structure is complex and can be mistakenly pressed; when the double buttons are required to be pressed simultaneously, the speed is not convenient to control, two fingers are occupied, and the man-machine engineering is not reasonable enough.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a button structure of a surgical instrument, which reduces or avoids the possibility of misoperation.

In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:

a button structure of a surgical instrument comprises a supporting seat, a button assembly and a press button assembly, wherein the button assembly and the press button assembly are arranged on the supporting seat, the button assembly comprises a button and a reset element for resetting after the button is pressed, the press button assembly comprises a press button and a second retaining mechanism, the press button assembly has at least two selection positions and can be switched among the selection positions through linear motion of the press button, and the press button assembly is retained in one of the selection positions through the second retaining mechanism when no external force is applied.

The utility model changes the operation control of the button structure from the traditional double-button structure into the combination form of the button and the press button, and the two functional units have different operation modes, so that the selection of the functional position is more accurate, and the misoperation is reduced; the traditional double-button assembly is reduced to one button assembly, so that the condition of misoperation of the button during use is avoided, and the speed regulation is more accurate; the mobile phone can be held more stably by using one button, and the mobile phone is in line with ergonomics.

Optionally, the linear movement direction of the press button is perpendicular to the pressing direction of the button assembly.

Optionally, the button assembly further comprises an actuating rod connected with the button, the supporting seat is provided with a mounting hole, the actuating rod penetrates through the mounting hole and can reciprocate along the mounting hole, the supporting seat is provided with a first limiting structure used for limiting the reciprocating range of the actuating rod, the first end of the actuating rod is connected with the button, and the second end of the actuating rod is an actuating end.

Optionally, the second end of the actuating lever is provided with a first push button trigger element.

Optionally, a stopping step is arranged on the inner wall of the mounting hole, and one end of the reset element abuts against the stopping step and the other end of the reset element abuts against the button; the executing rod is provided with a limiting part used for limiting the executing rod to slide out of the supporting seat, and the limiting part abuts against one side of the stopping step departing from the reset element.

Optionally, the pressure button is provided with a slot corresponding to each selection position along the linear motion direction, and the second retaining mechanism is clamped in one of the slots.

Optionally, the button subassembly still includes the transmission seat, the transmission seat is rotationally installed on the supporting seat through the pivot, the pivot is parallel with the direction of pressing of button, through the latch meshing between button and the transmission seat, be provided with first button trigger element on the transmission seat.

Optionally, the second retaining mechanism is mounted in a second mounting hole formed in the support seat, and the second retaining mechanism is of a steel ball spring structure; or the second holding mechanism comprises a second spring and a clamping pin, and the second spring enables the clamping pin to be clamped into the clamping groove.

Optionally, a second limiting structure for limiting rotation of the button assembly is arranged on the supporting seat.

Optionally, the button structure of the surgical instrument further includes a circuit board, the button assembly and the circuit board are provided with a corresponding button trigger component group, the button trigger component group is used for speed regulation control or start-stop control, the button assembly and the circuit board are provided with a corresponding button trigger component group, and the button trigger component group forms two trigger positions corresponding to reciprocating rotation and non-reciprocating rotation or three trigger positions corresponding to forward rotation, reverse rotation and safety position.

As described above, the utility model changes the operation control of the button structure from the traditional double-button structure into the combination form of the button and the press button, and the two function units have different operation modes, so that the selection of the function position is more accurate, and the misoperation is reduced; the traditional double-button assembly is reduced to one button assembly, so that the condition of misoperation of the button during use is avoided, and the speed regulation is more accurate; the mobile phone can be held more stably by using one button, and the mobile phone is in line with ergonomics.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is a perspective view of an embodiment of the present invention;

fig. 4 is a bottom view of an embodiment of the present invention (with the circuit board omitted);

FIG. 5 is a schematic diagram of the trigger element set;

fig. 6 is a schematic structural diagram of a button according to an embodiment of the present invention;

fig. 7 and 8 are schematic structural views of a press button according to an embodiment of the present invention;

fig. 9 is a schematic view of the present invention mounted to a handle of a surgical instrument.

Part number description:

1-a support seat; 21-a button; 211-a guide groove; 212-pin holes; 22-an actuating lever; 23-a reset element; 24-a first button activation element; 25-a pin shaft; 26-a limit pin; 3-a stop step; 41-pressing the button; 411-clamping; 412-latch; 42-a transmission seat; 421-transmission teeth; 43-a rotating shaft; 44-a first push button activation element; 45-bayonet lock; 46-a second spring; 47-a hold down member; 5-a circuit board; 51-a second button activation element; 52-a second push button activation element; 6-end cover; 7-a connecting rod; 100-button configuration; 200-a handle.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Examples

As shown in fig. 1 to 4, the present embodiment exemplarily provides a button structure of a surgical instrument for controlling an operation of the surgical instrument in an operation mode, the button structure includes a support base 1, a button assembly and a press button assembly, the support base is a housing of the handle or a support structure independent of the housing of the handle, the button assembly includes a button 21 and a reset element 23 for returning after the button is pressed, the press button assembly includes a press button 41 and a second retaining mechanism, the press button assembly has at least two selection positions and is switched between the selection positions by a linear motion of the press button 41 when pressed, and is retained in one of the selection positions by the second retaining mechanism when not subjected to an external force.

The operation control of the button structure is changed from the traditional double-button structure into a combined form of the button 21 and the press button 41, and the two components have different operation modes or operation directions, so that the selection of the functional position is more accurate, and the misoperation is reduced; the traditional parallel double-button assembly is reduced to one button assembly, so that the condition of misoperation of the buttons during use is avoided, and the operation is more accurate; the mobile phone can be held more stably by using one button, and the mobile phone is in line with ergonomics.

The button can be used for executing starting and stopping operations or speed regulation operations; the push button assembly may be used for reciprocating rotational control, for example, wherein one of the selection positions corresponds to reciprocating rotation and the other selection position corresponds to non-reciprocating rotation; the push button assembly can be used for controlling forward rotation and reverse rotation, for example, the push button assembly is provided with three selection positions which respectively correspond to the forward rotation position, the reverse rotation position and the safety position, and when the push button is pressed, the three selection positions can be switched, so that the selection of the working condition is realized. The utility model aims to provide an operation mode of different combination of the two, the press button component has at least two selectable selection positions; as for the function corresponding to the selection position, when applied to different surgical instruments, matching can be performed according to the specific function.

To further prevent the misoperation, the linear movement direction of the press button is perpendicular to the pressing direction of the press button assembly, for example, the press button is arranged on the front side of the handle, and the press button is arranged on the left side and the right side of the handle. Different operation directions can avoid misoperation to the maximum extent.

The button assembly further comprises an actuating rod 22, the button 21 is used for pressing by fingers, the actuating 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 actuating rod 22 are pressed; wherein, the supporting seat 1 is provided with a mounting hole penetrating through the supporting seat 1, the actuating rod 22 is arranged in the mounting hole and can reciprocate along the axial direction of the mounting hole, the button 21 is exposed out of the supporting seat 1, the first end of the actuating rod 22 is fixedly connected with the button 21, and the second end is used as a pressing actuating end.

Specifically, a pin hole 212 is arranged on the button 21 along 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 25 penetrating through the pin hole 212; the reset element 23 is disposed between the support seat 1 and the button 21, and generates a reset elastic force on the button 21, and a first limit structure is disposed between the actuating rod 22 and the support seat 1, and is used for limiting the actuating rod 22 to be separated from the support seat 1 along the axial direction.

In this example, the first limiting structure includes a stopping step 3 disposed on the inner wall of the mounting hole and a limiting portion disposed on the actuating rod 22, one end of the reset element 23 abuts against the stopping step 3, and the other end abuts against the button 21; the actuating rod 22 passes through the center hole of the stopping step 3, the limiting part abuts against one surface of the stopping step 3 departing from the resetting element 23, and the stopping step 3 can be in threaded connection with the inner wall of the mounting hole and can also be fixedly arranged, as shown in fig. 2.

In order to limit the rotation of the button 21 and the actuating rod 22, a second limit structure is further disposed between the button assembly and the support base 1, in this example, the button 21 has a button cap and a rod, a guide groove 211 is formed on the rod along an axis, a limit pin 26 is mounted on the support base 1 along a direction perpendicular to the rod, and the limit pin 26 extends into the guide groove 211, so that the button 21 can axially reciprocate but cannot rotate, as shown in fig. 2 and 6.

In one embodiment, the pressure button 41 is directly or indirectly connected to a first button triggering element 44, the pressure button 41 is provided with three slots 411 corresponding to three selection positions along the pressing direction, the second retaining mechanism is clamped in one of the slots 411, and the pressure button 41 cannot move when being subjected to external force.

In this embodiment, the press button assembly further includes a transmission seat 42, the transmission seat 42 is rotatably mounted on the supporting seat 1 through a rotating shaft 43, the rotating shaft 43 is parallel to the actuating 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 triggering element 44 is disposed on the transmission seat 42. When the push button 41 is operated, the first push button activating element 44 is rotated by the transmission seat 42 to switch between the selection positions, as shown in fig. 3 and 5.

As shown in fig. 7 and 8, the press button 41 has a rod-shaped structure, the slot 411 is disposed on one side of the press button 41, and the latch 412 is disposed on a side of the press button 41 that is adjacent to and perpendicular to the slot 411.

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 retaining mechanism comprises a second spring 46 and a latch 45, the second spring 46 enables the latch 45 to be latched into a latching groove, the latching groove is approximately V-shaped for enhancing the hand feeling, the end section of the corresponding latch 45 is V-shaped, and the surface of the press button 41, which is matched with the latch 45, is in an undulated shape, as shown in fig. 3 and 7.

In this example, to facilitate adjusting the clamping force on the press button 41, the second mounting hole is a through hole, a pressing member 47 for adjusting the pre-tightening force of the second retaining mechanism is disposed in the second mounting hole, the pressing member 47 is in threaded fit with the second mounting hole, specifically, the pressing member 47 is a pressing screw, and the pressing screw abuts against one end of the second spring 46 away from the clamping pin 45, as shown in fig. 2.

In one embodiment, the button structure further includes a circuit board 5, the button assembly and the button assembly are respectively provided with a first trigger element, the circuit board 5 is provided with a second trigger element corresponding to the first trigger element of each assembly, and the first trigger element and the second trigger element can be triggered in a contact manner or a non-contact manner, such as a micro switch and the like, such as a magnet and a hall element, an optoelectronic switch and the like. 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 a connecting rod 7. The trigger elements corresponding to the button assembly and the button assembly may be disposed on the same circuit board 5, or may be disposed separately.

In this example, the second end of the button assembly actuating rod 22 is provided with a first button triggering element 24, and the circuit board 5 is provided with a second button triggering element 51; the push button assembly is provided with a first push button activation element 44 and the circuit board 5 is provided with a corresponding one or more second push button activation elements 52.

When the push button 21 is pressed, the actuating rod 22 drives the first push button triggering element 24 to move towards the second push button triggering element 51 on the circuit board 5, and when the push button 21 is released, the push button 21 is reset under the action of the resetting element 23 and is far away from the second push button triggering element 51. For facilitating stepless speed regulation, the first button trigger element 24 is a magnet, such as magnetic steel; the second button activation element 51 is a hall element.

In this example, the second button activating element 52 is a hall element and is disposed on the same circuit board 5 as the second button activating element 51, and the first button activating element 44 is a magnet, such as a magnetic steel. In this embodiment, two modes of the button assembly controlling the reciprocating rotation and the non-reciprocating rotation, and the button assembly controlling the forward rotation, the reverse rotation and the safety position are exemplified.

In the case of 2 selection positions of the push button assembly, only one second push button activation element 52 may be provided; the first button activation element 44 rotates to correspond to the second button activation element 52 and is in reciprocating rotation, and when the first button activation element 44 leaves the position corresponding to the second button activation element 52, the first button activation element is in non-reciprocating rotation; wherein the push button 41 is perpendicular to the actuating rod 22.

When the number of the selected positions of the knob assembly is 3, one of the three slots 411 of the knob 41 corresponds to forward rotation, the other corresponds to reverse rotation, and the last corresponds to the locked safety position and does not rotate. Taking hall elements as an example, the second push button triggering element 52 is distributed in such a manner that two hall elements respectively correspond to forward rotation and reverse rotation, and a vacant position between the two hall elements corresponds to a safety position, when the first push button triggering element 44 rotates to correspond to one of the hall elements (the push button 41 rotates to the slot 411 on both sides), the first push button triggering element is rotated to be forward rotation or reverse rotation, and when the first push button triggering element rotates to a vacant position (the push button 41 is located in the middle slot 411), the first push button triggering element is locked.

As shown in fig. 5, the actuating rod 22, the first button triggering element 24 and the second button triggering element 51 are arranged oppositely; the button 21 drives the first button trigger element 24 to be close to or far away from the second button trigger element 51, so that speed adjustment is realized, 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; or the button 21 may also be used to control start and stop; the selection of the reciprocating rotation and the non-reciprocating rotation, or the selection of the forward rotation, the reverse rotation and the safety position is realized by the pressing button 41 driving the first pressing button triggering element 44 to switch between the position corresponding to the second pressing button triggering element 52 and the position away from the second pressing button triggering element 52.

Wherein, the end cover 6 is installed on one side of the supporting seat 1 which is positioned at the button 21, and the button 21 is positioned at the outer side of the end cover 6.

As shown in fig. 9, the button structure 100 is mounted on the handle 200 of the surgical instrument, the button 21 is located on the front side of the grip of the handle, and the press buttons 21 are located on the left and right sides of the handle and perpendicular to the direction of the button 21.

The utility model changes the operation control of the button structure from the traditional double-button structure into the combination form of the button 21 and the press button 41, and the two components have different operation modes or operation directions, so that the selection of the function position is more accurate, and the misoperation is reduced; the traditional parallel double-button assembly is reduced to one button assembly, so that the condition of misoperation of the buttons during use is avoided, and the operation is more accurate; the mobile phone can be held more stably by using one button, and the mobile phone is in line with ergonomics.

Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A button structure of a surgical instrument, characterized in that: the push button assembly comprises a push button and a reset element used for returning after the push button is pressed, the push button assembly comprises a push button and a second retaining mechanism, the push button assembly has at least two selection positions and can be switched among the selection positions through linear motion of the push button, and the push button assembly is retained in one of the selection positions through the second retaining mechanism when no external force is applied.

2. The button structure of the surgical instrument according to claim 1, wherein: the linear motion direction of the press button is vertical to the pressing direction of the button assembly.

3. The button structure of the surgical instrument according to claim 1, wherein: the button assembly further comprises an actuating rod connected with the button, a mounting hole is formed in the supporting seat, the actuating rod penetrates through the mounting hole and can reciprocate along the mounting hole, a first limiting structure used for limiting the reciprocating range of the actuating rod is arranged on the supporting seat, the first end of the actuating rod is connected with the button, and the second end of the actuating rod is an actuating end.

4. The button structure of the surgical instrument according to claim 3, wherein: the second end of the actuating lever is provided with a first button activation element.

5. The button structure of the surgical instrument according to claim 3, wherein: a stopping step is arranged on the inner wall of the mounting hole, and one end of the reset element abuts against the stopping step and the other end of the reset element abuts against the button; the executing rod is provided with a limiting part used for limiting the executing rod to slide out of the supporting seat, and the limiting part abuts against one side of the stopping step departing from the reset element.

6. The button structure of the surgical instrument according to claim 1, wherein: and the press button is provided with clamping grooves corresponding to the selection positions along the linear motion direction, and the second retaining mechanism is clamped in one of the clamping grooves.

7. The button structure of the surgical instrument according to claim 6, wherein: the button subassembly still includes the transmission gear, the transmission gear is rotationally installed on the supporting seat through the pivot, the pivot is parallel with the direction of pressing of button, through the latch meshing between button and the transmission gear, be provided with first button trigger element on the transmission gear.

8. The button structure of the surgical instrument according to claim 6, wherein: the second retaining mechanism is arranged in a second mounting hole formed in the supporting seat and is of a steel ball spring structure; or the second holding mechanism comprises a second spring and a clamping pin, and the second spring enables the clamping pin to be clamped into the clamping groove.

9. The button structure of the surgical instrument according to claim 1, wherein: and a second limiting structure used for limiting the rotation of the button assembly is arranged on the supporting seat.

10. The button structure of a surgical instrument according to any one of claims 1 to 9, wherein: the button structure of the surgical instrument further comprises a circuit board, the button assembly and the circuit board are provided with corresponding button trigger element groups, the button trigger element groups are used for speed regulation control or start and stop control, the button assembly and the circuit board are provided with corresponding button trigger element groups, and the button trigger element groups form two trigger positions corresponding to reciprocating rotation and non-reciprocating rotation or three trigger positions corresponding to forward rotation, reverse rotation and safety positions.

Images