CN210612173U - Resetting device and anastomat and medical instrument comprising same - Google Patents
Resetting device and anastomat and medical instrument comprising same Download PDFInfo
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- CN210612173U CN210612173U CN201920228837.XU CN201920228837U CN210612173U CN 210612173 U CN210612173 U CN 210612173U CN 201920228837 U CN201920228837 U CN 201920228837U CN 210612173 U CN210612173 U CN 210612173U
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Abstract
The utility model discloses a resetting device, an anastomat comprising the resetting device and a medical instrument, wherein the resetting device comprises a first transmission mechanism, a first rotary transmission mechanism, a one-way rotary transmission mechanism and a second rotary transmission mechanism; the unidirectional rotation transmission mechanism can only rotate in a unidirectional direction towards a set direction under the action of external force; the unidirectional rotation transmission mechanism is connected with the second rotation transmission mechanism and can drive the second rotation transmission mechanism to rotate towards a set direction; when the first rotary transmission mechanism is in a first state, the first transmission mechanism is connected with the first rotary transmission mechanism, and the rotation of the first rotary transmission mechanism can drive the first transmission mechanism to act along a set direction; when the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set direction. The utility model discloses can solve the manual reset under the unexpected shut down condition of apparatus. Simple structure and safe and reliable use.
Description
Technical Field
The invention belongs to the technical field of surgical medical instruments, relates to an anastomat, and particularly relates to a reusable anastomat and a resetting mechanism.
Background
In recent years, some medical instruments having a reduction structure, such as a stapler (especially, an electric stapler), an electric knife, and the like, have appeared on the market. The reset structure of the existing medical apparatus is relatively complex and inconvenient to operate; and the instrument can not be used normally after reset, which results in the instrument being scrapped.
An electric anastomat is taken as one of the medical instruments needing to be reset. When the motor stops working or cannot work normally if mechanical, electronic or software faults occur in the using process of the electric anastomat, the cutting knife cannot be retracted in a motor driving mode. There is a need for a fail-back mechanism that allows the user to manually retract the cutting blade safely. And after the fault is eliminated, the electric anastomat can be restored to the initial state, so that the electric anastomat can be continuously reused.
In view of the above, there is an urgent need to design a new medical device to overcome the above-mentioned disadvantages of the existing medical devices.
Disclosure of Invention
The invention provides a resetting mechanism, an anastomat and a medical instrument, which can solve the problem of mechanical resetting under the condition of accidental shutdown of the instrument, and have simple structure and safe and reliable use.
In order to solve the technical problem, according to one aspect of the present invention, the following technical solutions are adopted:
a reset device, the reset device comprising: the device comprises a first transmission mechanism, a first rotary transmission mechanism, a unidirectional rotary transmission mechanism and a second rotary transmission mechanism;
the unidirectional rotation transmission mechanism can only rotate in one direction towards a set direction under the action of external force; the unidirectional rotation transmission mechanism is connected with the second rotation transmission mechanism and can drive the second rotation transmission mechanism to rotate towards a set direction;
when the first rotary transmission mechanism is in a first state, the first transmission mechanism is connected with the first rotary transmission mechanism, and the rotation of the first rotary transmission mechanism can drive the first transmission mechanism to act along a set direction;
when the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set direction.
As an embodiment of the present invention, when the first rotation transmission mechanism is in the first state, the first transmission mechanism is connected to the first rotation transmission mechanism, and the rotation of the first rotation transmission mechanism can drive the first transmission mechanism to move along the set first direction;
when the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set second direction; the second direction is opposite to the first direction.
As an embodiment of the present invention, the unidirectional rotation transmission mechanism is a ratchet, and the second rotation transmission mechanism is a second gear; the unidirectional rotation transmission mechanism can drive the second rotation transmission mechanism to rotate only when rotating along a set first direction; when the unidirectional rotation transmission mechanism rotates along the second direction, the second rotation transmission mechanism cannot be driven to rotate.
As an embodiment of the present invention, the reset device further includes a switching mechanism disposed near the first rotation transmission mechanism; when the switching mechanism is in a first state, the first rotary transmission mechanism is connected with the first transmission mechanism; when the switching mechanism is in the second state, the first rotation transmission mechanism is separated from the first transmission mechanism.
As an embodiment of the present invention, the switching mechanism includes a reset cover plate, and the reset cover plate is connected to the first rotation transmission mechanism;
when the reset cover plate is in a closed state, the first transmission mechanism is connected with the first rotary transmission mechanism, the first rotary transmission mechanism can be driven by the rotation of the first rotary transmission mechanism to move along a set first direction, and the state is a first state of the reset cover plate;
when the reset cover plate rotates to a set angle along the rotating shaft of the reset cover plate, the first rotating transmission mechanism is separated from the first transmission mechanism, and the state is the second state of the reset cover plate.
As an embodiment of the present invention, when the switching mechanism is in the first state, the first rotation transmission mechanism is connected to the first transmission mechanism, the rotation of the first rotation transmission mechanism can drive the first transmission mechanism to move along the set direction, and the second rotation transmission mechanism is separated from the first transmission mechanism;
when the switching mechanism is in the second state, the first rotary transmission mechanism is separated from the first transmission mechanism, the second rotary transmission mechanism is connected with the first transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along the set direction.
As an embodiment of the present invention, one end of the reset cover plate is a cam structure, and the cam structure is connected to the first rotation transmission mechanism.
In one embodiment of the present invention, the first rotation transmission mechanism is provided with a return elastic mechanism that returns the first rotation transmission mechanism so that the first rotation transmission mechanism is connected to the first transmission mechanism in a process of switching the switching mechanism from the first state to the second state.
As an embodiment of the present invention, the first transmission mechanism is a rack, the first rotation transmission mechanism is a first gear, the unidirectional rotation transmission mechanism is a ratchet, and the second rotation transmission mechanism is a second gear;
when the first gear is in a first state, the rack is meshed with the first gear, and the rotation of the first gear can drive the rack to move along a set direction;
when the first gear is in the second state, the rack is meshed with the second gear, and the rotation of the second gear can drive the rack to move along the set direction.
As an embodiment of the present invention, the unidirectional rotation transmission mechanism is provided with a second operation hole, the second operation hole can be connected to a reset wrench, and when the reset wrench rotates towards the set direction, the unidirectional rotation transmission mechanism can rotate towards the set direction under the driving of the reset wrench.
As an embodiment of the present invention, the reset device further includes a reset wrench, and the reset wrench can be connected to the unidirectional rotation transmission mechanism to drive the unidirectional rotation transmission mechanism to rotate in a set direction.
As an embodiment of the present invention, the reset wrench includes a reset wrench base and a reset wrench pin, and one end of the reset wrench base is rotatably connected to one end of the reset wrench pin.
An anastomat comprises the resetting device.
As an embodiment of the present invention, the anastomat comprises a housing, the resetting device comprises a resetting cover plate, the housing is provided with a first notch, the resetting cover plate can cover the first notch in a first state, and the first state is the first state of the resetting cover plate; the second state of the reset cover plate is a state when the reset cover plate rotates along the rotating shaft of the reset cover plate by a set angle;
the reset device further comprises a reset wrench, the reset wrench comprises a reset wrench base and a reset wrench pin, and one end of the reset wrench base is rotatably connected to one end of the reset wrench pin; the casing is equipped with the trench, supplies to place the spanner that resets.
As an embodiment of the present invention, the anastomat is an electric anastomat, and further includes a power mechanism, a third rotation transmission mechanism, and an execution mechanism, wherein an output shaft of the power mechanism is connected to the third rotation transmission mechanism, and a third gear is engaged with the first rotation transmission mechanism; the first transmission mechanism is connected with the executing mechanism and can drive the executing mechanism to act;
when the first rotary transmission mechanism is meshed with the first transmission mechanism, the power mechanism can drive the first transmission mechanism to act through the transmission of the third rotary transmission mechanism and the first rotary transmission mechanism.
As an embodiment of the present invention, the anastomat comprises a shell, wherein the shell is provided with a first notch, and the shell is provided with a first operation hole; the reset device comprises a reset cover plate;
a rotating shaft and a first elastic mechanism are arranged at the first end of the reset cover plate; a sliding block is arranged at the second end of the reset cover plate;
when the sliding block is at the first position, the reset cover plate can cover the first notch; when the sliding block is at the second position, the reset cover plate is opened to a certain angle under the action of the first elastic mechanism;
the sliding block is provided with an inclined plane, and one side of the sliding block is provided with a second elastic mechanism; the inclined plane of the sliding block is positioned below the first operating hole;
the reset wrench comprises a reset wrench base and a reset wrench pin; when the reset wrench pin is inserted into the first operating hole, the reset wrench pin can push the sliding block to move, so that the sliding block moves from the first position to the second position; and when the reset spanner pin is moved away from the first operation hole, the sliding block is reset under the driving of a second elastic mechanism positioned on one side.
A medical instrument comprises the reset device.
The invention has the beneficial effects that: the reset mechanism, the anastomat and the medical instrument provided by the invention have the advantages that the ratchet structure is skillfully utilized to drive the rack to reset, and the principle is simple and reliable; the realization of the normal function of the electric anastomat is not influenced; the reset cover plate can only be opened by a matched reset wrench, so that the safety and misoperation prevention are realized; the reset wrench is assembled at the tail part of the instrument, and is convenient to assemble and disassemble.
The whole design concept is simple to operate, and no additional tool is needed; the user can use the device at ease, and the mechanical reset under the condition that the device is stopped accidentally is solved. The present invention provides safety protection for the patient's surgery and allows the user's instruments to continue to be used normally after a fault reset operation.
Drawings
Fig. 1 is a schematic structural diagram of an electric stapler according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an electric stapler removing reset wrench according to an embodiment of the present invention.
Fig. 3 is a schematic structural view illustrating the expansion of the reset wrench according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram illustrating the opening of the reset cover according to an embodiment of the present invention.
Fig. 5 is a schematic view of the reset cam mechanism pressing down the gear to disengage the rack in one embodiment of the present invention.
FIG. 6 is a schematic view of the reset wrench in the ratchet operation hole according to an embodiment of the present invention.
FIG. 7 is a schematic view of the reset ratchet drive rack operation according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a reset cover plate according to an embodiment of the present invention.
Fig. 9 is a schematic diagram illustrating the cooperation of the transmission mechanisms in the resetting device according to an embodiment of the invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
For a further understanding of the invention, reference will now be made to the preferred embodiments of the present invention by way of example, and it is to be understood that the description is intended to further illustrate the features and advantages of the present invention and is not intended to limit the scope of the appended claims.
The description in this section is for several exemplary embodiments only, and the present invention is not limited only to the scope of the embodiments described. It is within the scope of the present disclosure and protection that the same or similar prior art means and some features of the embodiments may be interchanged.
The invention discloses a resetting device which can be used for resetting a anastomat (such as an electric anastomat, a manual anastomat, other medical instruments needing resetting and even other instruments), and the resetting device comprises: the device comprises a first transmission mechanism, a first rotary transmission mechanism, a unidirectional rotary transmission mechanism and a second rotary transmission mechanism. The unidirectional rotation transmission mechanism can only rotate in one direction towards a set direction under the action of external force; the unidirectional rotation transmission mechanism is connected with the second rotation transmission mechanism and can drive the second rotation transmission mechanism to rotate towards a set direction. When the first rotary transmission mechanism is in a first state, the first transmission mechanism is connected with the first rotary transmission mechanism, and the rotation of the first rotary transmission mechanism can drive the first transmission mechanism to act along a set direction. When the first rotation transmission mechanism is in the second state, the first transmission mechanism is connected to the second rotation transmission mechanism, and the rotation of the second rotation transmission mechanism can drive the first transmission mechanism to move along the set direction (see fig. 5).
In an embodiment of the present invention, the unidirectional rotation transmission mechanism is a ratchet, and the second rotation transmission mechanism is a second gear; the unidirectional rotation transmission mechanism can drive the second rotation transmission mechanism to rotate only when rotating along a set first direction; when the unidirectional rotation transmission mechanism rotates along the second direction, the second rotation transmission mechanism cannot be driven to rotate.
FIG. 5 is a schematic view of the reset cam mechanism depressing the gear away from the rack in one embodiment of the present invention; please refer to
Fig. 5 shows that in an embodiment of the present invention, the first transmission mechanism is a rack 24, the first rotation transmission mechanism is a first gear 23, the unidirectional rotation transmission mechanism is a ratchet 25, and the second rotation transmission mechanism is a second gear 26. When the first gear 23 is in the first state, the rack 24 is meshed with the first gear 23, and the rotation of the first gear 23 can drive the rack 24 to move along the set direction; when the first gear 23 is in the second state, the rack 24 is meshed with the second gear 26, and the rotation of the second gear 26 can drive the rack 24 to move along the set direction.
In an embodiment of the present invention, when the first rotation transmission mechanism is in the first state, the first transmission mechanism is connected to the first rotation transmission mechanism, and the rotation of the first rotation transmission mechanism can drive the first transmission mechanism to move along the set first direction. When the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set second direction; the second direction is opposite to the first direction.
Referring to fig. 5, in an embodiment of the present invention, the switching mechanism includes a reset cover 22, one end of the reset cover 22 is a cam structure 221, and the cam structure 221 is connected to the first rotation transmission mechanism (e.g., the first gear 23). When the reset cover 22 is in the closed state, the first transmission mechanism (e.g., the rack 24) is connected to the first rotary transmission mechanism (e.g., the first gear 23), and the rotation of the first rotary transmission mechanism (e.g., the first gear 23) can drive the first transmission mechanism (e.g., the rack 24) to move along the first direction, which is the first state of the reset cover 22. When the reset cover 22 rotates to a set angle along the rotation axis 222, the first rotation transmission mechanism (e.g., the first gear 23) is separated from the first transmission mechanism (e.g., the rack 24), which is the second state of the reset cover 22.
FIG. 6 is a schematic view of the reset wrench in the ratchet operation hole according to an embodiment of the present invention; referring to fig. 6, in an embodiment of the present invention, the reset device further includes a reset wrench 1, and the reset wrench 1 can be connected to the unidirectional rotation transmission mechanism (e.g., the ratchet 25) to drive the unidirectional rotation transmission mechanism (e.g., the ratchet 25) to rotate in a set direction.
FIG. 3 is a schematic view of a configuration of the reset wrench according to an embodiment of the present invention; referring to fig. 3, in an embodiment of the present invention, the reset wrench 1 includes a reset wrench base 11 and a reset wrench pin 12, and one end of the reset wrench base 11 is rotatably connected to one end of the reset wrench pin 12. When the reset wrench base 11 and the reset wrench pin 12 are unfolded (approximately 90 degrees), the reset wrench base and the reset wrench pin can be used as a wrench, so that the rotation is convenient, and the ratchet wheel is driven to rotate; when the reset wrench base 11 and the reset wrench pin 12 are closed (the two are arranged approximately in parallel), the reset wrench base and the reset wrench pin can be conveniently placed into a special slot of the electric handle 2.
FIG. 7 is a schematic view of the reset ratchet drive rack operation according to one embodiment of the present invention; referring to fig. 7, in an embodiment of the present invention, the unidirectional rotation transmission mechanism (for example, the ratchet 25) is provided with a second operation hole 251, the second operation hole 251 can be connected to a reset wrench 1, and a reset wrench pin of the reset wrench 1 is inserted into the second operation hole 251; when the reset wrench 1 rotates in the setting direction, the ratchet wheel 25 can rotate in the setting direction by the reset wrench 1, so that the rack 24 is reset by the second gear 26.
In an embodiment of the present invention, the reset device further includes a switching mechanism (e.g., a reset cover 22), which is disposed near the first rotation transmission mechanism (e.g., the first gear 23); when the switching mechanism is in the first state, the first rotary transmission mechanism (such as the first gear 23) is connected with the first transmission mechanism (such as the rack 24); in the second state of the switching mechanism, the first rotary transmission mechanism (e.g., the first gear 23) is disengaged from the first transmission mechanism (e.g., the rack 24).
In an embodiment of the present invention, when the switching mechanism is in the first state, the first rotation transmission mechanism (e.g., the first gear 23) is connected to the first transmission mechanism (e.g., the rack 24), the rotation of the first rotation transmission mechanism (e.g., the first gear 23) can drive the first transmission mechanism (e.g., the rack 24) to move along the set direction, and the second rotation transmission mechanism (e.g., the second gear 26) is separated from the first transmission mechanism (e.g., the rack 24); when the switching mechanism is in the second state, the first rotary transmission mechanism (e.g., the first gear 23) is separated from the first transmission mechanism (e.g., the rack 24), the second rotary transmission mechanism (e.g., the second gear 26) is connected to the first transmission mechanism (e.g., the rack 24), and the rotation of the second rotary transmission mechanism (e.g., the second gear 26) can drive the first transmission mechanism (e.g., the rack 24) to move along the set direction.
FIG. 9 is a schematic view of the engagement of the various transmission mechanisms in the reset device in accordance with one embodiment of the present invention; referring to fig. 9, in an embodiment of the present invention, the first rotation transmission mechanism (e.g., the first gear 23) is provided with a reset elastic mechanism 231, and in the process of switching the switching mechanism (e.g., the reset cover 22) from the first state to the second state, the reset elastic mechanism 231 resets the first rotation transmission mechanism (e.g., the first gear 23) so that the first rotation transmission mechanism (e.g., the first gear 23) is connected to the first transmission mechanism (e.g., the rack 24). In an embodiment of the present invention, the elastic return mechanism 231 is a spring.
As shown in fig. 9, in an embodiment of the present invention, a return elastic mechanism 231 is disposed below the first gear 23, and when the return cover 22 returns to the first state again, the first gear 23 is automatically moved upward under the urging of the return elastic mechanism 231, and the first gear 23 is engaged with the rack 24.
The invention also discloses an electric anastomat which comprises the resetting device.
In an embodiment of the present invention, the electric anastomat includes a housing, the housing is provided with a first gap, the reset cover plate can cover the first gap in a first state, and the first state is the first state of the reset cover plate; the second state of the reset cover plate is a state when it is rotated by a set angle (e.g., 90 °) along its rotation axis. The reset device further comprises a reset wrench, the reset wrench comprises a reset wrench base and a reset wrench pin, and one end of the reset wrench base is rotatably connected to one end of the reset wrench pin; the casing is equipped with the trench, supplies to place the spanner that resets.
Fig. 1 is a schematic structural view of an electric stapler according to an embodiment of the present invention, and fig. 2 is a schematic structural view of an electric stapler removing reset wrench according to an embodiment of the present invention; referring to fig. 1 and fig. 2 (in conjunction with fig. 4), in an embodiment of the present invention, the electric stapler includes: reset spanner 1 and electric handle 2, reset spanner 1 detachably installs on electric handle 2.
The reset wrench 1 comprises a reset wrench base 11 and a reset wrench pin 12; the electric handle 2 includes a first operation hole 21, a reset cover 22, a first gear 23, a rack 24, a ratchet 25 (reset ratchet), and a second gear 26 (reset gear).
The reset spanner pin 12 is provided with an end head which can be inserted into the first operation hole 21; in a state where the reset key pin 12 is inserted into the first operation hole 21, the reset cover 22 is opened. The first end of the reset cover plate 22 is provided with a cam surface 221, the first end of the reset cover plate 22 is arranged close to the gear 23, and the first gear 23 is meshed with the rack 24 when the reset cover plate 22 is in a first state; in the process of rotating the reset cover 22 from the first state to the second state, the cam surface of the reset cover 22 rotates to press down the first gear 23 engaged with the rack 24, so that the first gear 23 is disengaged from the rack 24.
The ratchet wheel 25 is provided with a second operation hole 251 (second operation hole), and the end of the reset wrench pin 12 can be inserted into the second operation hole 251; in a state where the reset wrench pin 12 is inserted into the second operation hole 251, the reset wrench 1 is rotated to rotate the ratchet 25.
The ratchet wheel 25 is meshed with the second gear 26 in the opposite direction, and the rotation of the ratchet wheel 25 can drive the second gear 26 to rotate; the second gear 26 is engaged with the rack 24, and the rack 24 is driven by the rotation of the second gear 26 to move towards a set direction.
An elastic mechanism is arranged below the first gear 23, and when the reset cover plate 22 returns to the first state again, the first gear 23 automatically moves upwards under the pushing of the elastic mechanism to be meshed with the rack 24.
In an embodiment of the present invention, please refer to fig. 5, the electric stapler further includes a power mechanism 28, a third gear 27, and an actuating mechanism, wherein an output shaft of the power mechanism 28 is connected to the third gear 27, and the third gear 27 is engaged with the first gear 23; the rack 24 is connected with the actuator and can drive the actuator to act (the actuator can be an actuating component such as a cutting knife). When the first gear 23 is engaged with the rack 24, the power mechanism 28 can drive the rack 24 to operate through the transmission between the third gear 27 and the first gear 23 (the power mechanism 28 drives the third gear 27 to rotate, and the third gear 27 drives the first gear 23 to rotate).
Fig. 4 is a schematic structural view illustrating the opening of the reset cover according to an embodiment of the present invention, and fig. 8 is a schematic structural view illustrating the reset cover according to an embodiment of the present invention; referring to fig. 4 and 8, in an embodiment of the present invention, the stapler includes a housing, the housing is provided with a first notch, and the housing is provided with a first operation hole 21; the resetting device comprises a resetting cover plate 22, a cam structure 221 is arranged at the first end of the resetting cover plate 22, and the cam structure 221 is connected with the first gear 23. A rotating shaft 222 and a first elastic mechanism 223 are arranged at the first end of the reset cover plate 22; the second end of the reset cover plate is provided with a slider 224.
When the slide block 224 is in the first position, the reset cover plate 22 can cover the first notch; when the sliding block 224 is in the second position, the reset cover 22 is opened to a certain angle by the first elastic mechanism 223 (in an embodiment of the present invention, the first elastic mechanism 223 may be a torsion spring); thereafter, the reset cover 22 can be manually moved to another angle to a second position. The slide block 224 is provided with an inclined plane, and one side of the slide block is provided with a second elastic mechanism 225; the inclined surface of the slider 224 is located below the first operation hole.
The reset wrench 1 comprises a reset wrench base 11 and a reset wrench pin 12; when the reset wrench pin 12 is inserted into the first operation hole, the reset wrench pin 12 can push the sliding block 224 to move, so that the sliding block 224 moves from the first position to the second position; in a state where the reset key 12 is removed from the first operation hole, the slider 224 is reset by the second elastic means 225 located at one side. In an embodiment of the present invention, the second elastic mechanism 225 is a spring.
The reset wrench 1 acts on the inclined surface (not shown) of the slider to retreat the slider, thereby releasing the reset cover plate 22, and the reset cover plate 22 is opened under the action of the torsion spring.
The electric anastomat of the invention has the following use modes:
during operation, the reset wrench 1 is taken out from the lower part of the electric handle 2, and the reset wrench 1 is a reset wrench base 11 and a reset wrench pin 12 which are unfolded into a right angle shape, as shown in fig. 3. The reset key pin 12 of the reset key seat 11 is then inserted into the reset operation hole 21, and the reset cover 22 is opened, as shown in fig. 4. Then, the reset cover 22 is pulled to rotate the reset cover 22 to the vertical position. As shown in fig. 4, the internal mechanism of the reset cover 22 is provided with a cam surface that, during rotation, depresses the first gear 23, which was originally engaged with the drive rack 24, out of engagement with the rack 24, as shown in fig. 5. Finally, the reset wrench 1 is inserted into the second operation hole 251 of the reset ratchet wheel 25, the reset wrench 1 is rotated back and forth, the rack 24 is driven to move in the proximal direction by the ratchet wheel 25 and the second gear 26, and the cutting knife is safely retracted, as shown in fig. 6. The ratchet wheel 25 is always in contact with the return gear 26 by the depression of the internal spring, and the rack 24 allows the cutter to be retracted only proximally in one direction without being fired forward when the return wrench 1 is rotated back and forth.
After the cutting knife retracts, the reset cover plate 22 is closed again and returns to the initial position, and the first gear 23 automatically and upwards meshes with the rack 24. Then, the reset wrench 1 is closed and reinserted into the power handle 2. And detecting the functions of the electric anastomat, and if all the functions are normal, continuing to use the electric anastomat.
The invention also discloses a medical appliance (even other appliances needing reduction) which comprises the reduction device.
In conclusion, the reset mechanism, the anastomat and the medical instrument provided by the invention skillfully utilize the ratchet structure to drive the rack to reset, and the principle is simple and reliable; the realization of the normal function of the electric anastomat is not influenced; the reset cover plate can be opened only by a matched reset wrench, so that the safety and misoperation prevention are realized; the reset wrench is assembled at the tail part of the instrument, and is convenient to assemble and disassemble.
The whole design concept is simple to operate, and no additional tool is needed; the user can use the device at ease, and the mechanical reset under the condition that the device is stopped accidentally is solved. The present invention provides safety protection for the patient's surgery and allows the user's instruments to continue to be used normally after a fault reset operation.
The description and applications of the invention herein are illustrative and are not intended to limit the scope of the invention to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and alterations and equivalents of the various elements of the embodiments are known to those skilled in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the invention.
Claims (17)
1. A reset device, characterized in that the reset device comprises: the device comprises a first transmission mechanism, a first rotary transmission mechanism, a unidirectional rotary transmission mechanism and a second rotary transmission mechanism;
the unidirectional rotation transmission mechanism can only rotate in one direction towards a set direction under the action of external force; the unidirectional rotation transmission mechanism is connected with the second rotation transmission mechanism and can drive the second rotation transmission mechanism to rotate towards a set direction;
when the first rotary transmission mechanism is in a first state, the first transmission mechanism is connected with the first rotary transmission mechanism, and the rotation of the first rotary transmission mechanism can drive the first transmission mechanism to act along a set direction;
when the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set direction.
2. The reset device of claim 1, wherein:
when the first rotary transmission mechanism is in a first state, the first transmission mechanism is connected with the first rotary transmission mechanism, and the rotation of the first rotary transmission mechanism can drive the first transmission mechanism to move along a set first direction;
when the first rotary transmission mechanism is in a second state, the first transmission mechanism is connected with the second rotary transmission mechanism, and the rotation of the second rotary transmission mechanism can drive the first transmission mechanism to move along a set second direction; the second direction is opposite to the first direction.
3. The reset device of claim 1, wherein:
the unidirectional rotation transmission mechanism is a ratchet wheel, and the second rotation transmission mechanism is a second gear; the unidirectional rotation transmission mechanism can drive the second rotation transmission mechanism to rotate only when rotating along a set first direction; when the unidirectional rotation transmission mechanism rotates along the second direction, the second rotation transmission mechanism cannot be driven to rotate.
4. The reset device of claim 1, wherein:
the reset device also comprises a switching mechanism, and the switching mechanism is arranged close to the first rotary transmission mechanism; when the switching mechanism is in a first state, the first rotary transmission mechanism is connected with the first transmission mechanism; when the switching mechanism is in the second state, the first rotation transmission mechanism is separated from the first transmission mechanism.
5. The resetting device according to claim 4, wherein:
the switching mechanism comprises a reset cover plate, and the reset cover plate is connected with the first rotary transmission mechanism;
when the reset cover plate is in a closed state, the first transmission mechanism is connected with the first rotary transmission mechanism, the first rotary transmission mechanism can be driven by the rotation of the first rotary transmission mechanism to move along a set first direction, and the state is a first state of the reset cover plate;
when the reset cover plate rotates to a set angle along the rotating shaft of the reset cover plate, the first rotating transmission mechanism is separated from the first transmission mechanism, and the state is the second state of the reset cover plate.
6. The resetting device according to claim 4, wherein:
when the switching mechanism is in a first state, the first rotary transmission mechanism is connected with the first transmission mechanism, the first transmission mechanism can be driven to act along a set direction by the rotation of the first rotary transmission mechanism, and the second rotary transmission mechanism is separated from the first transmission mechanism;
when the switching mechanism is in the second state, the first rotary transmission mechanism is separated from the first transmission mechanism, the second rotary transmission mechanism is connected with the first transmission mechanism, and the first transmission mechanism can be driven to move along the set direction by the rotation of the second rotary transmission mechanism.
7. The resetting device according to claim 4, wherein:
one end of the reset cover plate of the switching mechanism is of a cam structure, and the cam structure is connected with the first rotary transmission mechanism.
8. The resetting device according to claim 4, wherein:
the first rotary transmission mechanism is provided with a reset elastic mechanism, and in the process of switching the switching mechanism from the first state to the second state, the reset elastic mechanism resets the first rotary transmission mechanism, so that the first rotary transmission mechanism is connected with the first transmission mechanism.
9. The reset device of claim 1, wherein:
the first transmission mechanism is a rack, the first rotary transmission mechanism is a first gear, the unidirectional rotary transmission mechanism is a ratchet wheel, and the second rotary transmission mechanism is a second gear;
when the first gear is in a first state, the rack is meshed with the first gear, and the rotation of the first gear can drive the rack to move along a set direction;
when the first gear is in the second state, the rack is meshed with the second gear, and the rotation of the second gear can drive the rack to move along the set direction.
10. The reset device of claim 1, wherein:
the unidirectional rotation transmission mechanism is provided with a second operation hole, the second operation hole can be connected with a reset wrench, and when the reset wrench rotates towards the set direction, the unidirectional rotation transmission mechanism can rotate towards the set direction under the driving of the reset wrench.
11. The reset device of claim 1, wherein:
the reset device further comprises a reset wrench, wherein the reset wrench can be connected with the unidirectional rotation transmission mechanism to drive the unidirectional rotation transmission mechanism to rotate towards a set direction.
12. The reset device of claim 11, wherein:
the spanner that resets includes the spanner base that resets and resets the spanner round pin, and the one end of the spanner base that resets is rotatably connected in the one end that resets the spanner round pin.
13. An anastomat, comprising a reduction device according to any one of claims 1 to 12.
14. The stapler according to claim 13, wherein:
the anastomat comprises a shell, the resetting device comprises a resetting cover plate, the shell is provided with a first notch, the resetting cover plate can cover the first notch in a first state, and the first state is the first state of the resetting cover plate; the second state of the reset cover plate is a state when the reset cover plate rotates along the rotating shaft of the reset cover plate by a set angle;
the reset device further comprises a reset wrench, the reset wrench comprises a reset wrench base and a reset wrench pin, and one end of the reset wrench base is rotatably connected to one end of the reset wrench pin; the casing is equipped with the trench, supplies to place the spanner that resets.
15. The stapler according to claim 13, wherein:
the anastomat is an electric anastomat, the anastomat further comprises a power mechanism, a third rotary transmission mechanism and an execution mechanism, an output shaft of the power mechanism is connected with the third rotary transmission mechanism, and a third gear is meshed with the first rotary transmission mechanism; the first transmission mechanism is connected with the executing mechanism and can drive the executing mechanism to act;
when the first rotary transmission mechanism is meshed with the first transmission mechanism, the power mechanism can drive the first transmission mechanism to act through the transmission of the third rotary transmission mechanism and the first rotary transmission mechanism.
16. The stapler according to claim 13, wherein:
the anastomat comprises a shell, wherein the shell is provided with a first notch, and the shell is provided with a first operation hole; the reset device comprises a reset cover plate;
a rotating shaft and a first elastic mechanism are arranged at the first end of the reset cover plate; a sliding block is arranged at the second end of the reset cover plate;
when the sliding block is at the first position, the reset cover plate can cover the first notch; when the sliding block is at the second position, the reset cover plate is opened to a certain angle under the action of the first elastic mechanism;
the sliding block is provided with an inclined plane, and one side of the sliding block is provided with a second elastic mechanism; the inclined plane of the sliding block is positioned below the first operating hole;
the reset wrench comprises a reset wrench base and a reset wrench pin; when the reset wrench pin is inserted into the first operating hole, the reset wrench pin can push the sliding block to move, so that the sliding block moves from the first position to the second position; and when the reset spanner pin is moved away from the first operation hole, the sliding block is reset under the driving of a second elastic mechanism positioned on one side.
17. A medical device, characterized in that it comprises a reduction device according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228837.XU CN210612173U (en) | 2019-02-21 | 2019-02-21 | Resetting device and anastomat and medical instrument comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228837.XU CN210612173U (en) | 2019-02-21 | 2019-02-21 | Resetting device and anastomat and medical instrument comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210612173U true CN210612173U (en) | 2020-05-26 |
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ID=70762356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920228837.XU Withdrawn - After Issue CN210612173U (en) | 2019-02-21 | 2019-02-21 | Resetting device and anastomat and medical instrument comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210612173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730735A (en) * | 2019-02-21 | 2019-05-10 | 上海逸思医疗科技有限公司 | Resetting-mechanism, stapler and medical instrument |
-
2019
- 2019-02-21 CN CN201920228837.XU patent/CN210612173U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730735A (en) * | 2019-02-21 | 2019-05-10 | 上海逸思医疗科技有限公司 | Resetting-mechanism, stapler and medical instrument |
| CN109730735B (en) * | 2019-02-21 | 2024-04-12 | 上海逸思医疗科技股份有限公司 | Reset mechanism, anastomat and medical instrument |
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Address after: Room 103, building 2, 1690 Cailun Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee after: Shanghai Yisi Medical Technology Co.,Ltd. Address before: Room 103, building 2, 1690 Cailun Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee before: SHANGHAI YISI MEDICAL TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20200526 Effective date of abandoning: 20240412 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200526 Effective date of abandoning: 20240412 |