CN111227891A - Handheld subassembly of electronic surgical instruments and electronic surgical instruments - Google Patents
Handheld subassembly of electronic surgical instruments and electronic surgical instruments Download PDFInfo
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- CN111227891A CN111227891A CN201811443606.7A CN201811443606A CN111227891A CN 111227891 A CN111227891 A CN 111227891A CN 201811443606 A CN201811443606 A CN 201811443606A CN 111227891 A CN111227891 A CN 111227891A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
Abstract
The invention relates to a handheld component of an electric surgical instrument and the electric surgical instrument. The hand-held assembly of the electric surgical instrument comprises: a power supply assembly, a drive assembly, a switching assembly, a first power output assembly, a second power output assembly, a control circuit, and a housing portion; the switching assembly comprises a shaft, a first gear, a second motor, a transmission rod and a switching meshing part; the switching engagement member is capable of placing the switching assembly in either a first output mode or a second output mode. The handheld component of the electric surgical instrument provided by the invention realizes swinging, closing and firing of the nail bin component through the high-power first motor. The complexity of the structure of the electric surgical instrument is reduced, and the cost is saved. Meanwhile, the switching of the output modes is realized through the low-power second motor, the initial driving state can be set, and a safety structure for preventing error triggering is formed.
Description
Technical Field
The invention relates to a medical surgical operation instrument, in particular to a handheld component of an electric operation instrument and the electric operation instrument using the handheld component.
Background
Staplers are commonly used in surgery to achieve resection of tissue and sealing of a wound. The anastomat comprises a linear cutting anastomat, a tubular anastomat, a linear cutting anastomat under an endoscope and the like. These staplers can be used to excise diseased tissues of the lung, intestine, stomach, while sealing the wound. In the operation process, the end effector of the anastomat clamps and extrudes tissues, then the cutting knife is used for cutting the tissues, and the generated wound surface is quickly sutured by using the anastomosis nail. The use of the anastomat shortens the operation time, improves the success rate of the operation and has quick postoperative recovery.
The currently used staplers are mainly operated by hand or by electric. In the operation process, the front end of the anastomat is required to clamp the tissue to be cut, and the preparation before firing is well made. For a manually operated stapler, in the process of firing the stapler, a doctor needs to press a handle while holding the stapler in the air to complete firing. In the whole firing process, the hand provides two forces of supporting and pressing, and the shaking of the anastomat caused by the shaking of the hand is easy to occur. Meanwhile, the force application of manual firing is not stable and uniform enough, especially for a linear cutting anastomat, the whole firing process can be completed only by pressing the handle for many times during firing, after the handle is pressed for each time, the handle needs to be loosened to press the handle for the next time, the cutting knife stops advancing in the process of loosening the handle, the nail pushing sheet stops moving, and the thrust for the anastomosis nail also rapidly drops to zero. The formation of the anastomosis nail has defects, the cutting wound surface of the cutting knife is not smooth, and the problem is more obvious particularly at the position of the loosening handle.
And to electronic anastomat, the doctor only needs stably to hold the anastomat, makes cutting knife and anastomotic nail move through the button, can realize the steady motion of cutting knife and the steady continuous sewing of anastomotic nail to effectively guaranteed cutting effect. Comparative studies show that: bleeding complications with electric staplers are reduced by nearly half, while the hospitalization costs for the patient are reduced by nearly 10% relative to manual staplers (Impact of Power and specificity-Specific Endoscopic visualization Technology on Clinical and ecoomicOutcome of Video-Assisted Clinical Lobecitomy Procedures: ARetrospective, Observative Study, Daniel L.Miller et al, Advances in Therapy, (2018)35: 707-723). The operation actions of the electric anastomat comprise closing and firing of the nail bin assembly, swinging movement of the nail bin assembly and rotation of the nail bin assembly around a self shaft, and the nail bin assembly has a plurality of movement forms, so that the conventional electric anastomat usually adopts a power source with a plurality of motors to respectively control each action, and a corresponding power transmission system is required to be arranged in the anastomat in a matched mode, so that the electric anastomat is high in cost, heavy in weight and complex in structure.
Disclosure of Invention
To address one or more of the problems presented, the present invention provides a hand held assembly for a powered surgical instrument that utilizes a high power motor to smoothly fire a staple cartridge assembly. The invention provides a handheld assembly of an electric surgical instrument, which utilizes a high-power motor to realize swinging, closing and firing of a nail bin assembly; and the switching of the driving mode is realized by using a low-power motor. The invention provides an electric surgical instrument which can realize stable cutting and effective suturing of tissues. The handheld component of the electric surgical instrument provided by the invention realizes swinging, closing and firing of the nail bin component through the first motor. Can improve the operation efficiency and reduce the influence caused by manual operation. The stable cutting of cutting assembly and the effective sewing of anastomotic nail can be realized. Reduce postoperative bleeding and accelerate the recovery of patients. The complexity of the structure of the electric surgical instrument is reduced, and the cost is saved. Meanwhile, the initial driving state is set through the second motor, and a safety structure for preventing mistaken triggering is formed.
The present invention provides a powered surgical instrument hand-held assembly, characterized in that the hand-held assembly comprises: a power supply component; the driving assembly comprises a driving gear and a motor assembly; the switching assembly can be meshed with the driving assembly to obtain power input; the switching assembly can be meshed with the driving assembly to obtain power input; the switching assembly comprises a shaft, a first gear assembly, a second gear assembly, a third gear assembly, a second motor, a transmission rod and a switching meshing assembly; the first gear assembly, the second gear assembly and the third gear assembly are arranged on the shaft; the first gear assembly is meshed with the driving gear of the driving assembly; the switching engagement member is capable of placing the switching assembly in a first output mode or a second output mode; the first power output assembly comprises a first power gear, a first rotary driving rod, a first transmission piece and a first transmission rod assembly; the first power gear is fixedly connected with the first rotary driving rod, so that the first power gear and the first rotary driving rod can synchronously rotate; the first rotary driving rod is matched with the first transmission piece, so that the first rotary driving rod can drive the first transmission piece to move along the first rotary driving rod; the first transmission piece is connected with the first transmission rod; the second power output assembly comprises a second power gear, a second rotary driving rod, a second transmission piece and a second transmission rod assembly; the second power gear is fixedly connected with the second rotary driving rod, so that the second power gear and the second rotary driving rod can synchronously rotate; the second rotary driving rod is matched with the second transmission piece, so that the second rotary driving rod can drive the second transmission piece to move along the second rotary driving rod; the second transmission piece is fixedly connected with the second transmission rod; the control circuit is connected with the driving assembly and controls the driving assembly; and a housing portion enclosing at least the drive assembly, the switching assembly, and the control circuit. The power from the driving assembly is selectively transmitted to the first power output assembly or the second power output assembly through the switching assembly, and the power output path is selected. Meanwhile, for the switching of the alternative, a structure similar to a safety is formed by the switching assembly, and other transmission structures are prevented from being triggered by mistake.
In the first output mode, the first gear is simultaneously meshed with the drive gear and a first power gear of the first power output assembly; in the second output mode, the first gear is simultaneously meshed with the drive gear and a second power gear of the second power output assembly. After the first gear is meshed with the first power gear or the second power gear, power from the driving assembly is transmitted to the first power output assembly or the second power output assembly through the switching assembly. The switching of the power transmission path is realized.
The switching assembly further comprises a second gear arranged on the shaft, the second gear is connected with the first gear and can rotate simultaneously; in the first output mode, the second gear is in mesh with a first power gear of the first power output assembly; in the second output mode, the second gear is in mesh with a second power gear of the second power output assembly. And different switching component structures are provided, and the power is output to the first power output component or the second power output component through the second gear.
The switching assembly further comprises a second gear arranged on the shaft, the second gear is connected with the first gear and can rotate simultaneously; in the first output mode, one of the first gear and the second gear is in mesh with a first power gear of the first power output assembly; in the second output mode, the other of the first gear and the second gear is in mesh with a second power gear of the second power output assembly. And different switching component structures are provided, and the power is output to the first power output component or the second power output component through the second gear.
The handheld assembly further comprises a manual rotating part, and the manual rotating part comprises a rotating grab handle rotating thumb wheel and a connecting rod; the rotary grab handle rotary thumb wheel is connected with the shell in a rotatable manner; the rotary grab handle rotary dial wheel is fixedly connected with the connecting rod, and the connecting rod is used for connecting the nail bin assembly; at least a part of the first transmission rod assembly of the first power output assembly is arranged in the inner space of the manual rotating part, and at least a part of the first transmission rod assembly can rotate along with the manual rotating dial wheel; at least a portion of the second drive rod assembly of the second power take off assembly is disposed in an interior space of the manual rotating portion; at least a portion of the second drive rod assembly may rotate with the manually rotatable thumb wheel. The manual rotation is used for controlling the posture of the nail bin and ensuring that the nail bin is aligned to the part to be cut.
The hand-held assembly further comprises a closure grip assembly; the closed handle component comprises a closed handle and a clamping part; the clamping part is clamped with the first transmission assembly in a separable mode; the closed handle assembly is rotatable about a fixed axis to move the first transmission member of the first power take off assembly from a first position to a second position; the clamping part and the first transmission assembly are clamped with each other in a first position; when the second position, the first transmission piece can be separated from the clamping portion.
The handheld assembly further comprises a reset assembly; when the closed handle assembly moves the first transmission assembly to the second position, the handle resetting assembly can fixedly hold the closed handle assembly at the corresponding position.
The handheld assembly further comprises a head-swinging steering control button, the head-swinging steering control button provides a first-direction rotation control signal, a second-direction rotation control signal and/or a reset control signal for the control circuit, and the control circuit is used for controlling the movement of the second power output assembly according to the first-direction rotation control signal, the second-direction rotation control signal or the reset control signal.
The handheld assembly further comprises a firing button assembly, and the firing button assembly is arranged on the closed handle assembly or the shell part; the firing button assembly is connected with the control circuit and used for providing a signal for controlling the first power output assembly to move.
The present invention also provides an electric surgical instrument, which is an electric stapler for linear cutting, the electric stapler including: a cartridge assembly and a hand held assembly as described in any of the preceding.
The handheld component of the electric surgical instrument provided by the invention realizes swinging, closing and firing of the nail bin component through a single motor. Can improve the operation efficiency and reduce the influence caused by manual operation. The stable cutting of cutting assembly and the effective sewing of anastomotic nail can be realized. Reduce postoperative bleeding and accelerate the recovery of patients. The present invention further provides an electric surgical instrument capable of achieving smooth cutting and effective suturing of tissue. The invention provides an electric surgical instrument which can swing, close and fire a nail bin assembly through a single motor. The complexity of the structure of the electric surgical instrument is reduced, and the cost is saved. Meanwhile, a safety structure for preventing error triggering is formed by setting the initial driving state.
Drawings
FIG. 1 is a schematic view of a powered surgical instrument according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a cartridge assembly in motion;
FIG. 3 is a schematic view of a partial structure of a powered surgical instrument according to a first embodiment of the present invention;
FIG. 4 is a partial schematic view of a switching assembly according to a first embodiment of the present invention;
FIG. 5 is a partial schematic view of a powered surgical instrument according to a second embodiment of the present invention;
fig. 6 is a partial schematic view of a switching assembly according to a second embodiment of the present invention.
Detailed Description
FIG. 1 is a schematic view of a powered surgical instrument according to a first embodiment of the present invention. The electric stapler 10 includes: a cartridge assembly 100 and a hand-held assembly 200. The cartridge assembly 100 can be an existing pivotable cartridge assembly including an anvil, a cartridge, a cutter assembly, and a drive assembly. The transmission assembly is driven by external force to swing, open, close and fire the nail bin. FIG. 2 is a schematic view of a cartridge assembly in motion. The cartridge assembly 100 is shown in an achievable form of motion driven by the hand-held assembly 200, including a swinging head motion, and pivoting about its own axis.
FIG. 3 is a schematic view of a partial structure of a powered surgical instrument according to a first embodiment of the present invention; fig. 4 is a partial schematic view of a switching assembly according to a first embodiment of the present invention. The hand-held assembly 200 includes: a drive assembly 2010, a switch assembly 2020, a first power take-off assembly 2030, a second power take-off assembly 2040, a manually rotatable portion 2050, a power supply assembly 2060, a control circuit 2070 and a housing portion 2080. Drive assembly 2010 includes motor assembly 2011, drive rod 20111, and drive gear 2012. The drive gear is provided on the drive shaft 20111 to rotate with the drive shaft 20111. The motor assembly 2011 includes a motor, and may further include a reduction gearbox 20112 and/or an encoder configured to cooperate with the motor.
A switching assembly 2020 can be engaged with the drive assembly 2010, the switching assembly 2020 including a first gear 2021, a shaft 2022, a switch fork 2023, a second motor 2024, and a drive link 2025. The motor 2024 drives the switching fork to move forward or backward through the transmission rod 2025. The transmission rod 2025 may be a lead screw. The motor 2024 may also be connected to a reduction gearbox and/or an encoder. The first gear assembly 2021 is disposed on the shaft 2022 and is rotatable about the shaft 2022.
A first power output assembly 2030 including a first power gear 2031, a first rotary drive rod 2032, a first drive link 2033, and a first drive link assembly 2034; the first power gear 2031 is capable of meshing with the first gear 2021 of the switch assembly 2020. The first rotary driving rod 2032 is engaged with the first transmission 2033, so that the first rotary driving rod 2032 can drive the first transmission 2033 to move. The first transmission 2033 moves substantially linearly along the rotary drive rod 2032 and can move in a forward or backward manner. The first transmission member 2033 is connected to the first transmission rod assembly 2034 to realize power transmission. The first transfer rod assembly 2034 may cooperate with the cartridge assembly 100 to control the closing or opening of the anvil and cartridge, as well as the firing of staples.
The second motor 2024 is driven by pressing a switch located on the housing, the second motor 2024 drives a switching fork 2023 through a transmission rod 2025, so that the first gear 2021 can be switched between at least two positions, and when the switching fork 2023 pushes the first gear 2021 to the first position, the first gear 2021 is simultaneously engaged with the driving gear 2012 and the first power gear 2031. Power from the drive assembly 2010 is thus transferred to the first power output assembly 2030. Power is transferred from the first drive rod assembly 2034 of the first power output assembly 2030 to the cartridge assembly 100. Wherein the first rotary drive rod 2032 is rotatable. The first rotary drive rod 2032 may be an at least partially threaded lead screw or screw. The first transmission member 2033 is engaged with the screw or the thread of the screw rod.
Based on the above structure, the switching assembly 2020 enables the power obtained from the driving assembly 2010 to be input and output to other assemblies in a switchable manner through the first gear 2021.
The second power output assembly 2040 includes a second power gear 2041, a second rotation driving rod 2042, a second transmission element 2043 and a second transmission rod assembly 2044. The second power gear 2041 is engageable with the first gear 2021 of the switch assembly 2020. The second rotating drive rod 2042 cooperates with the second transmission element 2043, such that the second rotating drive rod 2042 can drive the second transmission element 2043 to move substantially linearly. The second transmission element 2043 is fixedly connected to the second transmission rod assembly 2044. The second transmission rod assembly 2044 includes a connecting claw 20441 and a sleeve 20442, and the connecting claw 20441 and the sleeve 20442 are connected to each other, for example, by the connecting claw 20441 gripping the sleeve 20442. The sleeve 20442 is rotatable and connected to the connecting claw 20441. The second driving rod assembly 2044 further drives the cartridge assembly 100 by pushing and pulling the sleeve 20442 to transmit power in the forward or reverse direction, thereby controlling the swinging motion of the cartridge assembly 100. The second drive rod assembly 2044 is capable of partial rotation and maintains power output in the axial direction.
The second motor 2024 drives the switching fork 2023, and when the first gear 2021 is pushed to the second position, the first gear 2021 is simultaneously engaged with the driving gear 2012 and the second power gear 2041. Power from the drive assembly 2010 is thus transmitted to the second power take-off assembly 2040. Power is transmitted from the second drive rod assembly 2044 of the second power output assembly 2040 to the cartridge assembly. Wherein the second rotary drive rod 2042 is rotatable. The second rotary drive rod 2042 may be an at least partially threaded lead screw or threaded rod. The second transmission member 2043 is engaged with the screw thread of the screw rod or the screw rod.
The drive shaft 20111 of the drive assembly 2010 is substantially parallel to the shaft 2022 of the switch assembly 2020. Further, the drive shaft 20111 of the drive assembly 2010 is substantially parallel to the first rotary drive rod 2032 of the first power take-off assembly 2030. Further, the drive shaft 20111 of the drive assembly 2010 is substantially parallel to the second rotary drive rod 2042 of the second power take-off assembly 2040.
The power supply module 2060 is used to supply electric power. The power supply assembly 2060 may include one or more batteries, which may be rechargeable or disposable.
A control circuit 2070, the control circuit 2070 comprising an input port through which an input signal is obtained and an output port through which an output signal is provided. A control circuit 2070 is connected to and controls the drive assembly 2010. The control circuit 2070 is also connected to the switching component 2020 and controls the switching component 2020.
The housing section 2080 can be used to house the drive assembly 2010, the switch assembly 2020, the power module 2060, and the control circuit 2070. Also, the housing section 2080 may house at least a portion of the first and second power output assemblies 2030, 2040.
The hand-held assembly 200 further includes a manual rotation portion 2050, the manual rotation portion 2050 being configured to control the rotation of the cartridge assembly 100 about the axial direction thereof. The manual rotation portion 2050 includes a rotation dial wheel 2051 and a connection rod 2052; the rotary dial wheel 2051 is rotatably connected with the housing portion 2080, the rotary dial wheel 2051 is fixedly connected with the connecting rod 2052, and the connecting rod 2052 is used for connecting the nail cartridge assembly 100. The rotary dial 2051 and the connecting rod 2052 of the manually rotatable portion 2050 have an inner space for accommodating at least a part of the first power output assembly 2030 and the second power output assembly 2040. The first transfer rod assembly 2034 of the first power take-off assembly 2030 may be located within the interior space. At least a portion of the second drive rod assembly 2044 of the second power output assembly 2040 may be located in the interior space, and at least a portion of the connecting claw 20441 and the sleeve 20442 of the second drive rod assembly 2044 may be located in the interior space. When the manual rotating part 2050 is rotated, the cartridge module 100 is driven to rotate around its own axis by the connecting rod 2052. The first drive rod assembly 2034 of the first power output assembly 2030 may extend into the interior space of the manually rotatable portion 2050 and the second drive rod assembly 2044 of the second power output assembly 2040 may extend into the interior space of the manually rotatable portion 2050.
The hand-held assembly 200 further comprises a head swing steering control button 2110, wherein the head swing steering control button 2110 is connected to the control circuit 2070 and provides a first direction rotation control signal, a second direction rotation control signal or a reset control signal to the control circuit 2070, and the control circuit 2070 controls the driving assembly 2010 according to the first direction rotation control signal, the second direction rotation control signal or the reset control signal, so as to realize head swing steering or resetting of the nail cartridge assembly in the first direction or the second direction. The yaw control button 2110 may be a controller having one or more signal outputs for providing a variety of control signals.
The hand-held assembly 200 further includes a firing button assembly 2120; the firing button assembly 2120 is connected to the control circuit 2070 for providing signals to fire the cartridge module 100. When the firing button assembly 2120 is pressed, the firing button assembly 2120 provides a firing signal for a signal input port of the control circuit 2070, an output port of the control circuit 2070 outputs a signal to the driving assembly 2010 to drive the driving assembly to move, power is output outwards, and the power is transmitted to the nail bin assembly 100 to drive a nail pushing sheet and a cutting knife therein, so that the nail bin assembly 100 is fired, and cutting and sewing of tissues are completed. The firing button assembly 2120 may be disposed on the closure grip assembly 2090 or on the housing portion 2080.
FIG. 5 is a partial schematic view of a powered surgical instrument according to a second embodiment of the present invention; fig. 6 is a partial schematic view of a switching assembly according to a second embodiment of the present invention. The switching member 2220 can be engaged with the driving member 2010, and the switching member 2220 includes a first gear 2221, a second gear 2222, a shaft 2223, a switching fork 2224, a second motor 2225, and a transmission rod 2224. The second motor 2225 drives the switching fork 2224 via the transmission rod 2224 to advance or retreat. The first gear 2221 and the second gear 2222 are provided on the shaft 2223. The first gear 2221 and the second gear 2222 are connected to each other, for example, by a sleeve fitted over the shaft 2223, or by a link, so that the first gear 2221 and the second gear 2222 can be rotated simultaneously. The first gear 2221 is engaged with the driving gear 2012 of the driving assembly 2010 and receives a power input from the driving assembly 2010. Shifting the shift fork 2224 can shift the first gear 2221 and the second gear 2222 between at least two positions. When the shift fork 2224 pushes the first gear 2221 to the first position, the second gear 2222 is in a meshed state with the first power gear portion 2031 of the first power output assembly 2030; enabling power from the drive assembly 2010 to be delivered to the first power take off assembly 2030. When the switching fork 2224 pushes the first gear 2221 to the second position, the second gear 2222 is engaged with the second power gear portion 2041 of the second power output assembly 2040, and the second gear 2222 is separated from the first power output assembly 2030; enabling delivery of power from the drive assembly 2010 to the second power take-off assembly 2040.
Based on the above structure, the switching unit 2220 effects input of power obtained from the driving unit 2010 to be switchably output to other units through the second gear 2222. The first gear 2221 and the second gear 2222 are coaxially aligned.
Optionally, for the structure that the switching component 2220 includes the first gear 2221 and the second gear 2222, another switching manner may also be provided: shifting the shift fork 2224 can shift the first gear 2221 and the second gear 2222 between at least two positions. When the shift fork 2224 pushes the first gear 2221 to the first position, one of the second gear 2222 and the first gear 2221 is in a meshed state with the first power gear portion 2031 of the first power output assembly 2030; enabling power from the drive assembly 2010 to be delivered to the first power take off assembly 2030. When the switching fork 2224 pushes the first gear 2221 to the second position, the other one of the second gear 2222 and the first gear 2221 meshes with the second power gear portion 2041 of the second power output assembly 2040; enabling delivery of power from the drive assembly 2010 to the second power take-off assembly 2040. However, whether in the first position or the second position, one of the first gear 2221 and the second gear 2222 must be intermeshed with the drive assembly 2010 in order to obtain power from the drive assembly 2010. The first gear 2221 and the second gear 2222 are coaxially aligned.
In the operation process, a nail bin assembly of the anastomat with the nail bin is close to a tissue to be clamped (such as a lung, an intestine or a stomach), and in the clamping process, the nail bin assembly can rotate through the swinging head of the nail bin (at the moment, the switching fork 2023 or 2224 keeps the switching assembly 2020 or 2220 in a state of being meshed with the second power output assembly, at the moment, the switching fork plays a role in safety, and due to the fact that the switching fork is not meshed with the first power output assembly, the nail bin assembly is prevented from being fired mistakenly in the operation process) and rotates around a shaft to select a proper clamping position. In which the head swinging motion is realized by driving the second power transmission means 2040 and the pivoting motion is realized by rotating the manual rotation part 2050. After approximation of the tissue, closure handle assembly 2090 is depressed, and closure handle assembly 2090 moves first link 2033 from an initial first position along first rotary drive rod 2032 to a second position, at which time closure handle assembly 2090 is separable from first link 2033 and handle reset button 2100 holds closure handle assembly 2090 in that position. The second motor 2024 or 2224 is used to drive the shift fork 2023 or 2224 to shift the gear or gear set of the shift assembly 2020, 2220 or 2320 into meshing engagement with the first power take off assembly 2030. The firing button assembly 2120 is pressed to provide a firing signal to the control circuit, so that the driving assembly 2010 outputs power, the power is transmitted to the first power output assembly 2020, the cutting knife of the nail cartridge assembly 100 is driven to complete cutting, and simultaneously, the wound surface is sutured by the anastomosis nails. The drive assembly 2010 then provides a reverse drive force to retract the cutting blade. Releasing the handle reset button 2100 closes the handle reset, the first transmission 2033 retracts, the cartridge assembly 100 opens, and the clamped tissue is released. The stapler is withdrawn.
The handheld component of the electric surgical instrument provided by the invention realizes swinging, closing and firing of the nail bin component through the first motor. Can improve the operation efficiency and reduce the influence caused by manual operation. The stable cutting of cutting assembly and the effective sewing of anastomotic nail can be realized. Reduce postoperative bleeding and accelerate the recovery of patients. The complexity of the structure of the electric surgical instrument is reduced, and the cost is saved. Meanwhile, mode switching is realized through the second motor, an initial driving state can be set, and a safety structure for preventing mistaken triggering is formed. The electric surgical instrument provided by the invention can utilize the high-power motor to stably fire the nail bin assembly, so that the nail bin assembly can swing, close and fire; meanwhile, the switching of the driving modes is realized by using a low-power motor. The stable cutting and effective suturing of the tissue are realized, the operation efficiency is improved, and the influence caused by manual operation is reduced. Meanwhile, the complexity of the structure of the electric surgical instrument is reduced, and the cost is saved. Meanwhile, the initial driving state is set through the second motor, and a safety structure for preventing mistaken triggering is formed.
The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (10)
1. A powered surgical instrument hand-held assembly, the hand-held assembly comprising:
a power supply component;
the driving assembly comprises a driving gear and a motor assembly;
the switching assembly can be meshed with the driving assembly to obtain power input; the switching assembly comprises a shaft, a first gear, a second motor, a transmission rod and a switching meshing part; the first gear is arranged on the shaft and is meshed with the driving gear of the driving assembly; the output switching part is coupled with the first gear; the switching assembly is meshed with the driving gear of the driving assembly; the switching engagement member is capable of placing the switching assembly in a first output mode or a second output mode;
the first power output assembly comprises a first power gear, a first rotary driving rod, a first transmission piece and a first transmission rod assembly; the first power gear is fixedly connected with the first rotary driving rod, so that the first power gear and the first rotary driving rod can synchronously rotate; the first rotary driving rod is matched with the first transmission piece, so that the first rotary driving rod can drive the first transmission piece to move along the first rotary driving rod; the first transmission piece is connected with the first transmission rod;
the second power output assembly comprises a second power gear, a second rotary driving rod, a second transmission piece and a second transmission rod assembly; the second power gear is fixedly connected with the second rotary driving rod, so that the second power gear and the second rotary driving rod can synchronously rotate; the second rotary driving rod is matched with the second transmission piece, so that the second rotary driving rod can drive the second transmission piece to move along the second rotary driving rod; the second transmission piece is fixedly connected with the second transmission rod;
a control circuit connected to the drive component and the switching component; and
a housing portion enclosing at least the drive assembly, the switching assembly, and the control circuit.
2. The hand-held assembly of claim 1,
in the first output mode, the first gear is simultaneously meshed with the drive gear and a first power gear of the first power output assembly;
in the second output mode, the first gear is simultaneously meshed with the drive gear and a second power gear of the second power output assembly.
3. The hand-held assembly of claim 1,
the switching assembly further comprises a second gear arranged on the shaft, the second gear is connected with the first gear and can rotate simultaneously;
in the first output mode, the second gear is in mesh with a first power gear of the first power output assembly;
in the second output mode, the second gear is in mesh with a second power gear of the second power output assembly.
4. The hand-held assembly of claim 1,
the switching assembly further comprises a second gear arranged on the shaft, the second gear is connected with the first gear and can rotate simultaneously;
in the first output mode, one of the first gear and the second gear is in mesh with a first power gear of the first power output assembly;
in the second output mode, the other of the first gear and the second gear is in mesh with a second power gear of the second power output assembly.
5. The hand held assembly according to any one of claims 1 to 4,
the handheld assembly further comprises a manual rotating part, and the manual rotating part comprises a rotating grab handle rotating thumb wheel and a connecting rod; the rotary grab handle rotary thumb wheel is connected with the shell in a rotatable manner; the rotary grab handle rotary dial wheel is fixedly connected with the connecting rod, and the connecting rod is used for connecting the nail bin assembly;
at least a part of the first transmission rod assembly of the first power output assembly is arranged in the inner space of the manual rotating part, and at least a part of the first transmission rod assembly can rotate along with the manual rotating dial wheel;
at least a portion of the second drive rod assembly of the second power take off assembly is disposed in an interior space of the manual rotating portion; at least a portion of the second drive rod assembly may rotate with the manually rotatable thumb wheel.
6. The hand held assembly according to any one of claims 1 to 5,
the hand-held assembly further comprises a closure grip assembly; the closed handle component comprises a closed handle and a clamping part; the clamping part is clamped with the first transmission assembly in a separable mode; the closed handle assembly is rotatable about a fixed axis to move the first transmission member of the first power take off assembly from a first position to a second position; the clamping part and the first transmission assembly are clamped with each other in a first position; when the second position, the first transmission piece can be separated from the clamping portion.
7. The hand-held assembly of claim 6,
the handheld assembly further comprises a reset assembly; when the closed handle assembly moves the first transmission assembly to the second position, the handle resetting assembly can fixedly hold the closed handle assembly at the corresponding position.
8. The hand held assembly according to any one of claims 1 to 7,
the handheld assembly further comprises a head-swinging steering control button, the head-swinging steering control button provides a first-direction rotation control signal, a second-direction rotation control signal and/or a reset control signal for the control circuit, and the control circuit is used for controlling the movement of the second power output assembly according to the first-direction rotation control signal, the second-direction rotation control signal or the reset control signal.
9. The hand held assembly according to any one of claims 1 to 8,
the handheld assembly further comprises a firing button assembly, and the firing button assembly is arranged on the closed handle assembly or the shell part; the firing button assembly is connected with the control circuit and used for providing a signal for controlling the first power output assembly to move.
10. A powered surgical instrument, wherein the powered surgical instrument is a powered stapler for linear cutting, the powered stapler comprising: a cartridge assembly and a hand held assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443606.7A CN111227891A (en) | 2018-11-29 | 2018-11-29 | Handheld subassembly of electronic surgical instruments and electronic surgical instruments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443606.7A CN111227891A (en) | 2018-11-29 | 2018-11-29 | Handheld subassembly of electronic surgical instruments and electronic surgical instruments |
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| CN111227891A true CN111227891A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811443606.7A Pending CN111227891A (en) | 2018-11-29 | 2018-11-29 | Handheld subassembly of electronic surgical instruments and electronic surgical instruments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098866A (en) * | 2020-08-28 | 2022-03-01 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
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2018
- 2018-11-29 CN CN201811443606.7A patent/CN111227891A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098866A (en) * | 2020-08-28 | 2022-03-01 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
| CN114098866B (en) * | 2020-08-28 | 2023-08-08 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
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