CN117694952B - Emergency switching device, electric anastomat and medical equipment - Google Patents
Emergency switching device, electric anastomat and medical equipment Download PDFInfo
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- CN117694952B CN117694952B CN202410139773.1A CN202410139773A CN117694952B CN 117694952 B CN117694952 B CN 117694952B CN 202410139773 A CN202410139773 A CN 202410139773A CN 117694952 B CN117694952 B CN 117694952B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000010304 firing Methods 0.000 claims abstract description 40
- 230000000903 blocking effect Effects 0.000 claims description 44
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 4
- 238000000034 method Methods 0.000 claims 1
- 208000012260 Accidental injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000001356 surgical procedure Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses an emergency switching device, an electric anastomat and medical equipment, which comprise a firing control part, a swinging control part and a switching connection part which are arranged on a fixed bracket, wherein the switching connection part comprises a switching rotating shaft, a first limiting part and a second limiting part; in the first state, the first limiting piece only limits the position of the bolt, and the limiting of the second limiting piece is released; in the second state, the first limiting piece releases the limit of the bolt. The invention sets the switching connection part to disconnect the transmission connection of the firing control part, the swinging control part and the actuator step by step under the failure mode, so that the actuator can be manually operated under the deflection state to continue to finish the operation, and the phenomenon that the vertical horse pulls the tissues back or causes accidental injury is avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an emergency switching device, an electric anastomat and medical equipment.
Background
The anastomat is a common medical instrument capable of clamping tissues to complete cutting anastomosis, the existing anastomat mainly comprises an electric anastomat, and the electric anastomat is operated electrically through a motor to facilitate operation. However, the electric anastomat is powered by electric energy, so that the electric anastomat has the possibility of failure caused by insufficient electric energy or motor faults. When such an emergency occurs during surgery, the motorized stapler cannot be returned to the original position for withdrawal from the patient, the surgery cannot be continued, and the stapler needs to be removed through an open surgery, which not only causes interruption of the surgery but also causes secondary injury to the patient.
In view of the above problems, some existing staplers are provided with some retraction mechanisms to help the anastomat withdraw after failure, as disclosed in publication No. CN 115644969B, such staplers can continue to be operated manually in a re-failure mode, but after failure, the actuator releases the power for firing and simultaneously releases the power for swinging, so that the actuator is retracted, which can cause pulling to the clamping part and also easily injure surrounding tissues by mistake, causing unnecessary injury for the actuator in the operating state.
Therefore, how to ensure reasonable operation of the stapler in the failure mode is an urgent problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an emergency switching device, an electric anastomat and medical equipment.
The aim of the invention is achieved by the following technical scheme:
the emergency switching device is applied to medical equipment and comprises a firing control part arranged on a fixed bracket, and comprises a firing drive motor, a first transmission assembly and a firing drive piece, wherein the first transmission assembly comprises a driving gear arranged on a motor shaft of the firing drive motor, and a driven gear meshed with the driving gear and transmitting power to the firing drive piece, and the firing drive piece drives an actuator arranged at the far end of the medical equipment to be closed and anastomosed; the swing control part comprises a swing driving motor, a second transmission assembly and a swing driving rod, the second transmission assembly comprises a driving block which is in threaded connection with a motor shaft of the swing driving motor, and a bolt which is inserted between the driving block and the swing driving rod to enable the driving block and the swing driving rod to be fixedly connected into a whole, and the swing driving rod drives the actuator to swing; the switching connection part comprises a switching rotating shaft, a first limiting piece and a second limiting piece, wherein the switching rotating shaft is arranged at the tail end of the first limiting piece and drives the first limiting piece to generate radial displacement through rotation, so that the first limiting piece is sequentially switched into a first state and a second state from an initial state, the first limiting piece is located at a first limiting position in the initial state, at the moment, the first limiting piece simultaneously limits the positions of the bolt and the second limiting piece, and the second limiting piece is abutted to the near end of the driven gear, so that the first transmission assembly and the second transmission assembly can carry out power transmission; in the first state, the switching rotating shaft rotates to drive the first limiting part to radially displace towards the far end to a second limiting position, at the moment, the first limiting part only limits the position of the bolt and releases the limit of the second limiting part, so that the driven gear can be stressed to axially displace to be separated from the driving gear, and the power transmission of the first transmission assembly is cut off, so that the firing control part is disconnected from the actuator; under the second state, the switching rotating shaft rotates to drive the first limiting piece to radially displace towards the far end until the first limiting piece is separated from the far end of the switching rotating shaft, and at the moment, the first limiting piece releases the limit of the bolt, so that the bolt can be stressed to displace and separate from the swing driving rod, and the power transmission of the second transmission assembly is cut off, so that the swing control part is separated from the actuator.
Preferably, the first limiting part is in an L-shaped rod shape, the tail end of the first limiting part is provided with an arch notch, the switching rotating shaft is arranged in the arch notch in a penetrating manner, a first spring is sleeved on the switching rotating shaft, two ends of the first spring are abutted to the position between the outer wall of the first limiting part and the proximal end of the switching rotating shaft, a first blocking part and a second blocking part are arranged in the switching rotating shaft at parallel intervals, and the switching rotating shaft is rotated to switch the first blocking part or the second blocking part from being abutted to the arch notch so as to drive the first limiting part to move to the first limiting position or the second limiting position.
Preferably, the first blocking part and the second blocking part are both in a strip shape formed by two blocks fixed on the outer wall of the switching rotating shaft relatively, the width of the first blocking part and the second blocking part is smaller than the height of the arch notch and larger than the width of the arch notch, and the extending directions of the first blocking part and the second blocking part are vertical, so that the initial state, the first state and the second state are sequentially switched by rotating the switching rotating shaft by 90 degrees.
Preferably, the far end and the middle part of the first limiting part are respectively provided with an L-shaped clamping groove, the side part of the fixed support is provided with a limiting pin, the limiting pin is clamped in the L-shaped clamping groove, the length of the horizontal section of the L-shaped clamping groove is matched with the distance between the first blocking part and the second blocking part, so that the limiting pin is clamped in the horizontal section of the L-shaped clamping groove in the initial state and the first state, and the limiting pin is positioned in the vertical section of the L-shaped clamping groove in the second state.
Preferably, the first limiting part is further provided with a bar-shaped hole extending in the same direction with the first limiting part, the side sliding of the bolt is clamped in the bar-shaped hole, and a second spring is arranged between the end part of the bolt and the driving block, so that in the second state, the second spring can drive the bolt to move upwards to be separated from the swing driving rod.
Preferably, the firing driving piece comprises a screw rod with a threaded outer wall, a moving piece screwed on the screw rod, and a main shaft fixedly connected with the moving piece, the driven gear is movably sleeved on the screw rod, a fourth spring abutted to the distal end face of the driven gear is sleeved on the screw rod, the axis of the driven gear drives the screw rod to synchronously rotate through a spline, and the screw rod drives the moving piece to move along the screw rod through rotation.
Preferably, the second limiting piece comprises a radial abutting block, an axial abutting block and a third spring, wherein the axial abutting block is slidably embedded in the fixed bracket and can axially move in the fixed bracket, and the distal end of the axial abutting block abuts against the proximal end of the driven gear; the radial abutting block is slidably embedded in the fixed support, the third spring is sleeved on the radial abutting block to drive the third spring to move radially relative to the fixed support, a notch matched with the radial abutting block is formed on the side of the first limiting piece, the outer end of the radial abutting block abuts against the first limiting piece in the initial state, the inner end of the radial abutting block abuts against the proximal end of the axial abutting block, and the driven gear is limited by the axial abutting block to be meshed with the driving gear; when the driven gear is in the first state, the notch is opposite to the radial abutting block, so that the radial abutting block moves radially under the drive of the third spring to be separated from the axial abutting block, and at the moment, the fourth spring can drive the driven gear to move axially to be separated from the driving gear.
Preferably, the proximal end of the screw rod is connected with a manual operating rod, and concave grooves are formed on the proximal end surfaces of the manual operating rod and the switching rotating shaft.
The electric anastomat comprises a shell, an actuator arranged at the far end of the shell and the emergency switching device arranged in the shell, wherein the firing control part and the swinging control part of the emergency switching device are in transmission connection with the actuator, and the switching connection part of the emergency switching device is sequentially switched from an initial state to a first state and a second state step by rotating a switching rotating shaft, so that the firing control part is separated from the actuator, and the swinging control part is separated from the actuator step by step.
Medical apparatus comprising an emergency switching device as described above.
The beneficial effects of the invention are mainly as follows:
1. setting a switching connection part to disconnect a first transmission component in a firing control part step by step under a failure mode, and then disconnecting a second transmission component in a swinging control part, so that the swinging control part can not be influenced by the disconnection of the firing control part, and the swinging control part can still be connected with an actuator under the state that the firing control part is disconnected with the actuator, so that the actuator can perform manual operation under a deflection state to continue to finish operation, and the phenomenon that a standing horse pulls tissues back or generates unnecessary accidental injuries is avoided;
2. the first blocking part and the second blocking part which are perpendicular to each other are arranged on the switching rotating shaft at intervals, so that the switching rotating shaft rotates 90 degrees to separate the first blocking part from the arch notch, and the second blocking part is abutted against the arch notch, so that the whole switching rotating shaft is prevented from being separated from the arch notch when rotating, and stable switching among an initial state, a first state and a second state is ensured;
3. the L-shaped structure of the L-shaped clamping groove on the first limiting part enables the limiting pin to have enough moving space to ensure that the limiting pin cannot deviate from the horizontal section of the L-shaped clamping groove in the first state until the limiting pin deviates from the L-shaped clamping groove in the second state, and the stability of the locking bolt of the first limiting part in the initial state and the first state is ensured.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
fig. 1: schematic diagram of emergency switching device in initial state;
fig. 2: schematic diagram of another angle of the emergency switching device in the initial state;
fig. 3: schematic view of the emergency switching device in a first state;
fig. 4: schematic view of another angle of the emergency switching device in the first state;
fig. 5: schematic view of the emergency switching device in the second state;
fig. 6: a schematic view of another angle of the emergency switching device in the second state;
fig. 7: schematic diagram of firing control part in emergency switching device;
fig. 8: schematic diagram of switching connection part in emergency switching device;
fig. 9: schematic diagram of another angle of the switching connection in the emergency switching device;
fig. 10: schematic diagram of swing control part in emergency switching device;
fig. 11: schematic diagram of an electric stapler;
fig. 12: an end schematic of the electric stapler.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. The embodiments are not limited to the present invention, and structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.
In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.
As shown in fig. 1 to 10, the invention discloses an emergency switching device, which is applied to medical equipment, and comprises a firing control part arranged on a fixed bracket 4, wherein the firing control part comprises a firing drive motor 101, a first transmission assembly and a firing driving piece, the first transmission assembly comprises a driving gear 102 arranged on a motor shaft of the firing drive motor 101, and a driven gear 103 meshed with the driving gear 102 and transmitting power to the firing driving piece, and the firing driving piece drives an actuator 6 arranged at the far end of the medical equipment to be closed and anastomosed; the swing control part comprises a swing driving motor 201, a second transmission assembly and a swing driving rod 204, wherein the second transmission assembly comprises a driving block 202 which is in threaded connection with a motor shaft of the swing driving motor 201, and a plug pin 203 which is inserted between the driving block 202 and the swing driving rod 204 so that the driving block and the swing driving rod 204 are fixedly connected into a whole, and the swing driving rod 204 drives the actuator 6 to swing; still including switching connecting portion, switching connecting portion includes switching pivot 301, first locating part 302 and second locating part, switching pivot 301 set up in the tail end of first locating part 302 and through rotatory drive first locating part 302 produces radial displacement, and then switches gradually to first state, second state from initial state.
As shown in fig. 1 and 2, in the initial state, the first limiting member 302 is located at a first limiting position, at this time, the first limiting member 302 defines the positions of the latch 203 and the second limiting member, and the second limiting member abuts against the proximal end of the driven gear 103, so that the first transmission assembly and the second transmission assembly can perform power transmission.
As shown in fig. 3 and 4, in the first state, the switching shaft 301 rotates to drive the first limiting member 302 to radially displace toward the distal end thereof to a second limiting position, at this time, the first limiting member 302 only limits the position of the latch 203, and releases the limitation of the second limiting member, so that the driven gear 103 can be forced to axially displace to be separated from the driving gear 102, thereby cutting off the power transmission of the first transmission assembly.
As shown in fig. 5 and 6, in the second state, the switching shaft 301 rotates to drive the first limiting member 302 to radially displace toward the distal end until the first limiting member is separated from the first limiting member, at this time, the first limiting member 302 releases the limitation of the latch 203, so that the latch 203 can be forced to displace and separate from the swing driving rod 204, thereby cutting off the power transmission of the second transmission assembly.
According to the invention, the switching connection part is arranged to disconnect the first transmission component in the firing control part and the second transmission component in the swinging control part step by step under the failure modes of the firing control part and the swinging control part, so that the swinging control part can not be influenced by the disconnection of the firing control part, the actuator 6 can be manually operated under the deflection state to continue to finish the operation, and the phenomenon that the standing horse pulls tissues back or generates unnecessary accidental injuries is avoided.
Specifically, as shown in fig. 1 to 9, the first limiting member 302 is in an L-shaped rod shape, the tail end of the first limiting member 302 has an arch notch 303, the switching shaft 301 is disposed in the arch notch 303 in a penetrating manner, a first spring 304 is sleeved on the switching shaft 301, two ends of the first spring 304 are abutted between the outer wall of the first limiting member 302 and the proximal end of the switching shaft 301, a first blocking portion and a second blocking portion are disposed on the switching shaft 301 at parallel intervals, and the switching shaft 301 is rotated to switch the first blocking portion or the second blocking portion to be abutted with the arch notch 303, so as to drive the first limiting member 302 to move to the first limiting position or the second limiting position. As shown in fig. 1, the first blocking portion abuts against the arch-shaped notch 303, and the position of the first limiting member 302 is the first limiting position. As shown in fig. 3, the second blocking portion abuts against the arch-shaped notch 303, and the position of the first limiting member 302 is the second limiting position.
Further, as shown in fig. 8, the first blocking portion and the second blocking portion are each in a strip shape formed by two stoppers 305 fixed on the outer wall of the switching shaft 301, and the width of the first blocking portion and the second blocking portion is smaller than the height of the arch notch 303 and larger than the width of the arch notch 303, so that the first blocking portion and the second blocking portion can be separated from the arch notch 303 only by rotation. The extending directions of the first blocking portion and the second blocking portion are perpendicular, so that the initial state, the first state and the second state are sequentially switched by rotating the switching rotating shaft 301 by 90 degrees. By means of the structure, when the switching rotating shaft 301 rotates by 90 degrees to enable the first blocking portion to be separated from the arch notch 303, the second blocking portion can be abutted against the arch notch 303, so that the switching rotating shaft 301 is prevented from being entirely separated from the arch notch 303 when rotating, and stable switching among an initial state, a first state and a second state is guaranteed.
Of course, in other possible embodiments, the switching shaft 301 may be connected to the first limiting member 302 in other possible structures to drive the first limiting member 302 to move radially by rotation, for example, the two may be screwed together by threads.
As shown in fig. 2, 4 and 6, the distal end and the middle portion of the first limiting member 302 are respectively provided with an L-shaped clamping groove 306, and the side portion of the fixing bracket 4 is provided with a limiting pin 401, so that the first limiting member 302 can stably move radially. The limiting pin 401 is clamped in the L-shaped clamping groove 306, and the length of the horizontal section of the L-shaped clamping groove 306 is matched with the distance between the first blocking part and the second blocking part, so that in the initial state and the first state, the limiting pin 401 is clamped in the horizontal section of the L-shaped clamping groove 306, and in the second state, the limiting pin 401 is positioned in the vertical section of the L-shaped clamping groove 306.
The L-shaped structure of the L-shaped slot 306 on the first limiting member 302 makes the limiting pin 401 have enough moving space to ensure that the limiting pin cannot be separated from the horizontal section of the L-shaped slot 306 in the first state, until the limiting pin 401 is separated from the L-shaped slot 306 in the second state, so as to ensure the stability of the locking bolt 203 in the initial state and the first state of the first limiting member 302.
Further, the first limiting member 302 is further provided with a bar hole 307 extending in the same direction, and the side of the latch 203 is slidably clamped in the bar hole 307, so that the radial movement of the first limiting member 302 does not affect the position of the latch 203 and simultaneously plays a stable limiting role on the latch 203 in the vertical direction.
As shown in fig. 1, 3, 5 and 10, the swing control portion is characterized in that the swing driving motor 201 is fixedly arranged on the fixed support 4, a motor shaft of the swing driving motor is provided with threads, and the driving block 202 is in threaded connection with the swing driving motor 201 to be driven by the swing driving motor to radially move. The distal end of the drive block 202 and the proximal end of the swing drive rod 204 are provided with mating receptacles so that the latch 203 may be interposed therebetween to connect the two together for power transmission.
The working principle of the swing control part driving the actuator 6 to swing is as follows: the distal end of the swing driving rod 204 is hooked and is clamped with a connecting ring 206 slidably disposed on the spindle 106, and is further in transmission connection with a transmission rod 207 fixedly connected to the side portion of the connecting ring 206 through the connecting ring 206, the swing driving motor 201 drives the driving block 202 to axially move through a rotator motor shaft, the driving block 202 drives the swing driving rod 204 and the transmission rod 207 to axially move synchronously through the plug 203, and since the transmission rod 207 only drives one side of the actuator 6 to axially move, the actuator 6 deflects (i.e. swings) relative to the axis thereof after being axially moved by the transmission rod 207, so as to achieve a desired position. This is not the focus of the present solution in the prior art, and is not described here in detail.
Further, a second spring 205 is disposed between the end of the pin 203 and the driving block 202, so that in the second state, the limiting pin 401 is separated from the L-shaped slot 306, and contacts the first limiting member 302 to limit the first limiting member in the vertical direction, at this time, the elastic force of the second spring 205 may drive the pin 203 to move upwards to separate from the swing driving rod 204, so that the swing driving rod 204 and the driving block 202 are separated, so that the second transmission assembly cannot complete the power transmission, the power transmission received by the swing driving rod 204 is released, and the actuator 6 may automatically return after the axial movement of the transmission rod 207 is not received.
As shown in fig. 7, the firing driving member comprises a screw rod 104 with a threaded outer wall, a moving member 105 screwed on the screw rod 104, and a main shaft 106 fixedly connected with the moving member 105, the driven gear 103 is movably sleeved on the screw rod 104, a fourth spring 107 abutting against the distal end surface of the driven gear 103 is sleeved on the screw rod 104, the axis of the driven gear 103 drives the screw rod 104 to synchronously rotate through a spline, and the screw rod 104 drives the moving member 105 to move along the same through rotation.
As shown in fig. 2, 4, 6, 7, 8 and 9, the second limiting member includes a radial abutment block 308, an axial abutment block 309 and a third spring 310, where the axial abutment block 309 is slidably embedded in the fixed bracket 4 and can move axially in the fixed bracket 4, and the distal end of the second limiting member abuts against the proximal end of the driven gear 103; the radial abutting block 308 is slidably embedded in the fixed bracket 4, the third spring 310 is sleeved on the radial abutting block 308 to drive the radial abutting block 308 to move radially relative to the fixed bracket 4, a notch 311 matched with the radial abutting block 308 is formed on the side of the first limiting piece 302, in the initial state, the outer end of the radial abutting block 308 abuts against the first limiting piece 302, the inner end of the radial abutting block 308 abuts against the proximal end of the axial abutting block 309, and the driven gear 103 is limited by the axial abutting block 309 to be meshed with the driving gear 102; in the first state, the notch 311 is opposite to the radial abutment block 308, so that the radial abutment block 308 moves radially under the drive of the third spring 310 to separate from the axial abutment block 309, and the fourth spring 107 may drive the driven gear 103 to move axially to separate from the driving gear 102.
In a preferred embodiment, the second limiting member is formed by matching a radial abutting block 308 and an axial abutting block 309, and in an initial state, the first limiting member 302 limits the radial abutting block 308, and further sequentially limits the positions of the axial abutting block 309 and the driven gear 103. In the first state, the first limiting member 302 moves to make the notch 311 face the radial abutment block 308, so that the radial limitation of the radial abutment block 308 is released, and the radial limitation of the axial abutment block 309 and the driven gear 103 can be released by the third spring 310. The proximal end of the axial abutment block 309 has a recess to facilitate its retention in abutment with the radial abutment block 308. In other possible embodiments, the second stop may also be a unitary member to disengage from the driven gear 103 by radial movement.
The proximal end of the screw rod 104 is connected with a manual operation lever 108, and concave grooves are formed on the proximal end surfaces of the manual operation lever 108 and the switching rotating shaft 301, so that the hand-held member can be conveniently clamped for rotation, and manual operation is facilitated. Further, in the preferred embodiment, the proximal ends of the manual lever 108 and the switching shaft 301 are rotatably embedded in the end cover 5, so as to facilitate operation. The end cover 5 is provided with an operation direction identifier matched with the manual operation lever 108 and a gear identifier matched with the switching rotating shaft 301, so as to further facilitate practical operation.
As shown in fig. 11 and 12, the invention also discloses an electric anastomat, which comprises a shell 7 (not shown in the drawing), an actuator 6 (not shown in the drawing) arranged at the far end of the shell 7, and the emergency switching device which is arranged in the shell 7 and is described above, wherein a firing control part and a swinging control part of the emergency switching device are in transmission connection with the actuator 6, and a switching connection part of the emergency switching device is sequentially switched from an initial state to a first state and a second state step by rotating a switching rotating shaft 301, so that the firing control part is separated from the actuator 6, the swinging control part is separated from the actuator 6 step by step. The embodiments of the emergency switching device are specifically described above, and will not be described herein. The actuator 6 includes a jaw, a cartridge seat, a staple abutment, a steering pull tab, a blade, an actuating sleeve, and other components for completing the cutting and anastomosis actions, which are not the focus of the present invention in the prior art and are not described herein. The electric stapler also comprises other necessary structures for operating control buttons, cables and the like, which are not the focus of the present invention and are not listed here.
Furthermore, the invention also discloses medical equipment comprising the emergency switching device. Including, but not limited to, an electric stapler, including any medical device having an actuator 6 for operation, such as an endoscopic device having an actuator 6, etc.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An emergency switching device for medical equipment comprises a fixed bracket (4)
The firing control part comprises a firing drive motor (101), a first transmission assembly and a firing drive piece, wherein the first transmission assembly comprises a driving gear (102) arranged on a motor shaft of the firing drive motor (101), and a driven gear (103) which is meshed with the driving gear (102) and transmits power to the firing drive piece, and the firing drive piece drives an actuator (6) arranged at the far end of the medical equipment to be closed and anastomosed;
the swing control part comprises a swing driving motor (201), a second transmission assembly and a swing driving rod (204), wherein the second transmission assembly comprises a driving block (202) which is in threaded connection with a motor shaft of the swing driving motor (201), and a bolt (203) which is inserted between the driving block (202) and the swing driving rod (204) so that the driving block and the swing driving rod are fixedly connected into a whole, and the swing driving rod (204) drives the actuator (6) to swing;
the method is characterized in that: the power transmission device comprises a driven gear (103), and is characterized by further comprising a switching connection part, wherein the switching connection part comprises a switching rotating shaft (301), a first limiting piece (302) and a second limiting piece, the switching rotating shaft (301) is arranged at the tail end of the first limiting piece (302) and drives the first limiting piece (302) to generate radial displacement through rotation, and then the first limiting piece (302) is sequentially switched into a first state and a second state from an initial state, the first limiting piece (302) is positioned at a first limiting position in the initial state, the first limiting piece (302) simultaneously limits the positions of the bolt (203) and the second limiting piece, and the second limiting piece is abutted to the near end of the driven gear (103) so that power transmission can be carried out by the first transmission assembly and the second transmission assembly;
in the first state, the switching rotating shaft (301) rotates to drive the first limiting piece (302) to radially displace towards the far end to a second limiting position, at this time, the first limiting piece (302) only limits the position of the bolt (203) and releases the limit of the second limiting piece, so that the driven gear (103) can be stressed to axially displace to be separated from the driving gear (102), and the power transmission of the first transmission assembly is cut off, so that the firing control part is separated from the actuator (6) and can be manually controlled;
in the second state, the switching rotating shaft (301) rotates to drive the first limiting piece (302) to radially displace towards the far end until the first limiting piece is separated from the far end, at the moment, the first limiting piece (302) releases the limit of the plug pin (203) so that the plug pin (203) can be forced to displace and separate from the swing driving rod (204), and therefore power transmission of the second transmission assembly is cut off, and the swing control part is separated from the actuator (6).
2. The emergency switching device of claim 1, wherein: the first limiting part (302) is in an L-shaped rod shape, the tail end of the first limiting part is provided with an arch notch (303), the switching rotating shaft (301) is arranged in the arch notch (303) in a penetrating mode, a first spring (304) is sleeved on the switching rotating shaft (301), two ends of the first spring (304) are abutted to the position between the outer wall of the first limiting part (302) and the proximal end of the switching rotating shaft (301), a first blocking part and a second blocking part are arranged on the switching rotating shaft (301) at parallel intervals, and the switching rotating shaft (301) is driven to move to a first limiting position or a second limiting position by rotating to switch the first blocking part or the second blocking part to be abutted to the arch notch (303).
3. The emergency switching device of claim 2, wherein: the first blocking part and the second blocking part are respectively in a strip shape formed by two blocks (305) which are relatively fixed on the outer wall of the switching rotating shaft (301), the width of the first blocking part and the width of the second blocking part are smaller than the height of the arch notch (303) and larger than the width of the arch notch (303), and the extending directions of the first blocking part and the second blocking part are vertical, so that the initial state, the first state and the second state are sequentially switched by rotating the switching rotating shaft (301) by 90 degrees.
4. An emergency switching device according to claim 3, wherein: the far end and the middle part of first locating part (302) are provided with L type draw-in groove (306) respectively, the lateral part of fixed bolster (4) is provided with spacer pin (401), spacer pin (401) card is located in L type draw-in groove (306), the horizontal segment length of L type draw-in groove (306) with interval phase-match between first fender portion and the second fender portion, so that under initial condition and the first state, spacer pin (401) all card is located in the horizontal segment of L type draw-in groove (306), under the second state, spacer pin (401) are located in the vertical section of L type draw-in groove (306).
5. The emergency switching device of claim 4, wherein: the first limiting part (302) is further provided with a strip-shaped hole (307) extending in the same direction with the first limiting part, the side sliding of the plug pin (203) is clamped in the strip-shaped hole (307), and a second spring (205) is arranged between the end part of the plug pin (203) and the driving block (202), so that in the second state, the second spring (205) can drive the plug pin (203) to move upwards to be separated from the swing driving rod (204).
6. An emergency switching device according to claim 3, wherein: the firing driving piece comprises a screw rod (104) with a threaded outer wall, a moving piece (105) screwed on the screw rod (104) and a main shaft (106) fixedly connected with the moving piece (105), the driven gear (103) is movably sleeved on the screw rod (104), a fourth spring (107) abutted to the distal end surface of the driven gear (103) is sleeved on the screw rod (104), the axis of the driven gear (103) drives the screw rod (104) to synchronously rotate through a spline, and the screw rod (104) drives the moving piece (105) to move along the screw rod through rotation.
7. The emergency switching device of claim 6, wherein: the second limiting piece comprises a radial abutting block (308), an axial abutting block (309) and a third spring (310), wherein the axial abutting block (309) is slidably embedded in the fixed support (4) and can axially move in the fixed support (4), and the distal end of the second limiting piece abuts against the proximal end of the driven gear (103); the radial abutting block (308) is slidably embedded in the fixed support (4), the third spring (310) is sleeved on the radial abutting block (308) to drive the radial abutting block (308) to move radially relative to the fixed support (4), a notch (311) matched with the radial abutting block (308) is formed on the side of the first limiting piece (302), the outer end of the radial abutting block (308) abuts against the first limiting piece (302) in the initial state, the inner end of the radial abutting block abuts against the proximal end of the axial abutting block (309), and the driven gear (103) is meshed with the driving gear (102) in a limiting mode through the axial abutting block (309); in the first state, the notch (311) is opposite to the radial abutting block (308), so that the radial abutting block (308) is driven by the third spring (310) to move radially to be separated from the axial abutting block (309), and the fourth spring (107) can drive the driven gear (103) to move axially to be separated from the driving gear (102).
8. The emergency switching device of claim 7, wherein: the proximal end of the screw rod (104) is connected with a manual operating rod (108), and concave grooves are formed on the proximal end surfaces of the manual operating rod (108) and the switching rotating shaft (301).
9. Electric anastomat, its characterized in that: the emergency switching device comprises a shell (7), an actuator (6) arranged at the far end of the shell (7) and the emergency switching device as set forth in any one of claims 1-8 and arranged in the shell (7), wherein a firing control part and a swinging control part of the emergency switching device are in transmission connection with the actuator (6), and a switching connection part of the emergency switching device is sequentially switched from an initial state to a first state and a second state step by step through rotating a switching rotating shaft (301), so that the firing control part is separated from the actuator (6), and the swinging control part is separated from the actuator (6) step by step.
10. Medical equipment, its characterized in that: comprising an emergency switching device according to any one of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410139773.1A CN117694952B (en) | 2024-02-01 | 2024-02-01 | Emergency switching device, electric anastomat and medical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410139773.1A CN117694952B (en) | 2024-02-01 | 2024-02-01 | Emergency switching device, electric anastomat and medical equipment |
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| CN117694952A CN117694952A (en) | 2024-03-15 |
| CN117694952B true CN117694952B (en) | 2024-04-16 |
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| CN117694952A (en) | 2024-03-15 |
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