CN209564168U - Single motor electrical surgical instrument - Google Patents
Single motor electrical surgical instrument Download PDFInfo
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- CN209564168U CN209564168U CN201822175854.XU CN201822175854U CN209564168U CN 209564168 U CN209564168 U CN 209564168U CN 201822175854 U CN201822175854 U CN 201822175854U CN 209564168 U CN209564168 U CN 209564168U
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Abstract
The utility model relates to a kind of single motor electrical surgical instruments.The single motor electrical surgical instrument includes: cutting suturing part and hand-held part, and the cutting suturing part includes nail-anvil assembly and storage screw assembly；The hand-held part includes: power supply module, driving assembly and changeover module；The changeover module includes axis, output switching part and multiple gear assemblies；The gear assembly is engaged with the driving gear of the driving component；Stirring the output switching part can make the changeover module be in the first output mode or the second output mode.Single motor electrical surgical instrument provided by the utility model realizes the closure and percussion of surgical instrument by single motor.The complexity for reducing the structure of electrical surgical instrument, has saved cost.Simultaneously by the setting to initial driving state, the safety structure for preventing mistakenly hit from sending out is formd.
Description
Technical field
The utility model relates to Medical surgical instruments, and in particular to a kind of single motor electrical surgical instrument.This is electronic
Surgical instrument has the resist-nailed seat of annular nail bin and annular, can be driven tubular stapler or electronic anorectal anastomat.
Background technique
It is realized usually using stapler to the excision of tissue and the closing of the surface of a wound in surgical operation.Stapler includes that straight line is cut
Cut linear cutting anastomat etc. under stapler, tube type anastomat, hysteroscope.These staplers can be used for cutting off the disease of lung, intestines, stomach
Become tissue, while the surface of a wound is closed.In the course of surgery, the end effector of stapler is clamped and is squeezed to tissue
Then pressure is then quickly sutured the surface of a wound of generation using cutter cutting tissue using anastomosis staple.Stapler
Using operating time is shortened, the success rate of operation is improved, and post-operative recovery is fast.
Stapler used at present, which mainly passes through, manual operation and two kinds of electric operating.In surgical procedure, it must use and coincide
Device front end clamps tissue to be cut, the preparation before carrying out percussion.For the stapler of manual operation, in the mistake of percussion stapler
Cheng Zhong, doctor must complete percussion while vacantly gripping stapler by fixed handle.During entire percussion, hand is provided
Two kinds of strength of support and pressing, are easy to appear the shake of stapler caused by the shake of hand.For anorectal anastomat and tubular kiss
Clutch, although percussion process be by press handle once complete, using manpower curable grip press handle, there is also
Exert a force uneven problem during entire percussion.Manually percussion force be not sufficiently stable and unevenly will affect final anastomosis staple at
Type effect makes staple formation existing defects, and the cutting surface of a wound irregularity of cutter.
And for electronic stapler, doctor, which need to only stablize, grips stapler, makes cutter by button and coincide
Nail movement can be realized the stable and continuous suture of the smooth motion and anastomosis staple of cutter, so that cutting effect be effectively ensured
Fruit.
Utility model content
The utility model provides a kind of single motor electrical surgical instrument, can be realized through motor-driven mode realization group
Knit cutting and anastomosis staple percussion.The utility model provides a kind of single motor electrical surgical instrument, steadily fires anastomosis staple.This is practical
It is novel that a kind of single motor electrical surgical instrument is provided, realize that the closure of stapler, percussion discharge by single motor.This is practical new
Type provides a kind of single motor electrical surgical instrument, can be realized steady cutting and and effectively suture to tissue.Above-mentioned single electricity
Machine electrical surgical instrument reduces the complexity of the structure of electrical surgical instrument, has saved cost.Simultaneously by being driven to initial
The setting of dynamic state, forms the safety structure for preventing mistakenly hit from sending out.
The utility model provides a kind of single motor electrical surgical instrument, which is characterized in that the single motor motor-driven surgery instruments
Tool includes: cutting suturing part, and the cutting suturing part includes nail-anvil assembly and storage screw assembly；The nail-anvil assembly is supported including annular
Nail seat；The storage screw assembly includes storage screw assembly shell, annular cutter, ejector pin component and annular nail bin；And hand-held part, institute
Stating hand-held part includes: power supply module；Driving assembly, including driving gear and motor；Changeover module, the changeover module can be with
The driving component engagement obtains power input；The changeover module includes axis, output switching part and multiple gear assemblies；It is described
Gear assembly is engaged with the driving gear of the driving component；The changeover module can be made by stirring the output switching part
In the first output mode or the second output mode；First power output component, when the changeover module is in the first output mould
When formula, the gear assembly of one in the multiple gear assembly of the changeover module and the first power output component is nibbled
It closes；Second power output component, when the changeover module is in the second output mode, the multiple tooth of the changeover module
One in wheel assembly is engaged with the gear assembly of the second power output component；The second power output component with it is described
The connection of ejector pin component；Control circuit, the control circuit connects the driving component, and controls the driving component；And it is outer
Shell portion.By changeover module by the power from driving assembly, be transferred in a manner of selectively the first power output component or
Second power output component realizes the selection to power output path.It is constituted simultaneously for the switching of alternative, changeover module
A kind of safety structure prevents the other drive mechanisms of false triggering.
The multiple gear assembly of the changeover module includes first gear component, second gear component and third gear
Component；The first gear component includes first gear portion, the first engaging section and the second engaging section；The first gear portion and institute
State the driving gear engagement of driving assembly；The second gear component includes second gear and third engaging section；The third tooth
Wheel assembly includes third gear and the 4th engaging section；Under first output mode, the first of the first gear component is nibbled
The third engaging section of conjunction portion and the second gear component is intermeshed, so that the first gear component and the second gear
Component being capable of synchronous rotary；First power teeth of the second gear of the second gear component and the first power output component
Wheel engagement；Under second output mode, the second engaging section of the first gear component and the third gear assembly
The intermeshing of 4th engaging section, enables the first gear component and the third gear assembly synchronous rotary；Described
The third gear of three gear assemblies is engaged with the second power gear of the second power output component.First gear component and
After two gear assemblies or the engagement of third gear assembly, the power from driving assembly passes through second gear component or third gear set
Part is transferred to the first power output component or the second power output component.Realize the switching of power transfer path.
The multiple gear assembly of the changeover module includes first gear component, second gear component and third gear
Component；The first gear component includes first gear, and the first gear is engaged with the driving gear of the driving component；Institute
Stating second gear component includes second gear；The third gear assembly includes third gear；The first gear, second gear
It is connected with each other, can be rotated simultaneously with third gear；Under first output mode, the second gear is dynamic with described first
First power gear of power output precision engages；Under second output mode, the third gear and second power
Second power gear of output precision engages.Different structure is provided, is outputed power by second gear and third direct geared
To the first power output component or the second power output component.
The first gear component is between the second gear component and the third gear assembly；Or described
One gear assembly is located at the ipsilateral of the second gear component and the third gear assembly.Second gear component and third gear
Component can be located at the heteropleural or ipsilateral of first gear component, realize the selectivity transmitting of power.
The first power output component, including the first power gear, the first rotation drive rod and the first driving member；It is described
First power gear is fixedly connected with the first rotation drive rod, so that first power gear and first rotation are driven
Lever being capable of synchronous rotary；The first rotation drive rod and first driving member cooperate, so that first rotation
Drive rod can drive first driving member to move along the first rotation drive rod.
The first rotation drive rod is screw rod or threaded rod.
The screw rod or threaded rod are speed change screw rod or speed change threaded rod.
The second power output component includes the second power gear, the second rotation drive rod and the second driving member；It is described
Second power gear is fixedly connected with the second rotation drive rod, so that second power gear and second rotation are driven
Lever being capable of synchronous rotary；The second rotation drive rod and second driving member cooperate, so that second rotation
Drive rod can drive second driving member to move along the second rotation drive rod.
The second rotation drive rod is screw rod or threaded rod.
The single motor electrical surgical instrument further includes firing button component, the firing button component and control electricity
Road connection, for providing the signal of control the driving component movement.
The single motor electrical surgical instrument further includes reset button, and the reset button is connect with the control circuit, is used for
The signal of control the driving component movement is provided.
Single motor electrical surgical instrument according to any one of aforementioned, which is characterized in that the single motor is electronic
Surgical instrument is anorectal anastomat or tubular anastomat.
The utility model provides a kind of single motor electrical surgical instrument, can be realized the steady cutting to tissue and and has
Effect suture.Postoperative hemorrhage is reduced, accelerates patient and restores.The utility model provides a kind of single motor electrical surgical instrument, Neng Goutong
It crosses single motor and realizes the closure of stapler, percussion release.The complexity of the structure of electrical surgical instrument is reduced, is saved
Cost.Simultaneously by the setting to initial driving state, the safety structure for preventing mistakenly hit from sending out is formd.
Detailed description of the invention
Fig. 1 is the schematic diagram according to a kind of single motor electrical surgical instrument of the utility model first embodiment；
Fig. 2 is the dismantling according to the cutting suturing part of the single motor electrical surgical instrument of the utility model first embodiment
Schematic diagram；
Fig. 3 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model first embodiment；
Fig. 4 is the schematic diagram according to the single motor electrical surgical instrument changeover module of the utility model first embodiment；
Fig. 5 is the dismantling schematic diagram according to the part changeover module of the changeover module of the utility model first embodiment；
Fig. 6 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model second embodiment；
Fig. 7 is the schematic diagram according to the single motor electrical surgical instrument changeover module of the utility model second embodiment；
Fig. 8 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model third embodiment；
Fig. 9 is the schematic diagram according to the single motor electrical surgical instrument changeover module of the utility model third embodiment；
Figure 10 is the schematic diagram according to a kind of single motor electrical surgical instrument of the 4th embodiment of the utility model；
Figure 11 is showing according to the cutting suturing part of the single motor electrical surgical instrument of the 4th embodiment of the utility model
It is intended to；
Figure 12 is the partial schematic diagram according to the single motor electrical surgical instrument of the 4th embodiment of the utility model；
Figure 13 is the schematic diagram according to the single motor electrical surgical instrument changeover module of the 4th embodiment of the utility model；
Figure 14 is the dismantling schematic diagram according to the part changeover module of the changeover module of the 4th embodiment of the utility model.
Specific embodiment
Fig. 1 is the schematic diagram according to a kind of single motor electrical surgical instrument of the utility model first embodiment.Fig. 2 is
According to the dismantling schematic diagram of the cutting suturing part of the single motor electrical surgical instrument of the utility model first embodiment.For convenient for
Understand, cutting suturing part is overall structure diagram in Fig. 1, and hand-held part is substantially cross-sectional view, to show its internal structure.According to
The electrical surgical instrument of the utility model first embodiment is the electronic stapler 100 of anal intestine, comprising: cutting 1100 He of suturing part
Hand-held part 1200.The clamping, cutting and suture of anal intestine mucosal tissue, the cutting suturing part may be implemented in cutting suturing part 1100
1100 include nail-anvil assembly 1110 and storage screw assembly 1120.Nail-anvil assembly 1110 includes annular resist-nailed seat 1111 and nail anvil driving
Part 1112.Storing up screw assembly 1120 includes storage screw assembly shell 1121, ejector pin component 1122 and annular nail bin 1123.Annular nail bin
Anastomosis staple (not shown) is provided in 1123.Nail-anvil assembly 1110 is driven to realize in the axial direction by nail anvil actuator 1112 axial
Move forward and backward, realize clamping and release for tissue.Storing up screw assembly 1120 further includes annular cutter (not shown), this is cut
Cutter is arranged on ejector pin component 1122.
Hand-held part 1200 includes: that driving assembly 1210, changeover module 1220, the first power output component 1230, second are dynamic
Power output precision 1240, power supply module 1250, control circuit 1260 and shell 1270.Power supply module 1250 is entire electric hand
Art instrument provides electric energy, including battery, battery can be disposable battery or rechargeable battery.Battery can be fixed on hand-held part
In 1200, it can also be removeably positioned in hand-held part 1200.Driving assembly 1210, including driving 1212 He of gear
Motor 1211；It can also include the reduction gearbox and/or encoder used with electric drilling match.
Control circuit 1260 includes circuit board and circuit element.The control circuit 1260 includes input port and output end
Mouthful, input signal is obtained by input port, provides output signal by output port.Control circuit 1260 connects the driving
Component 1210, and control the driving component 1210.
Shell 1270 can accommodate driving assembly 1210, changeover module 1220, power supply module 1250 and control circuit
1260.And at least part of the first power output component 1230 and the second power output component 1240 can be accommodated.
Hand-held part 1200 further includes firing button component 1280；The firing button component 1280 and the control circuit
1260 connections, for providing the driving signal of the driving electronic stapler 100 of anal intestine.Press the firing button component 1280, institute
It states firing button component 1280 and provides nail anvil nail bin closure signal or percussion to the signal input port of the control circuit 1260
Signal, for the output port of the control circuit 1260 to 1210 output signal of the driving component, driving assembly 1210 is defeated outward
Power out, power are passed to cutting suturing part 1100.Under the first output mode, firing button component 1280 passes through control electricity
Road 1260 exports nail anvil nail bin closure signal, and the power that driving assembly 1210 exports is passed to the first power output portion 1230,
And nail anvil actuator 1112 is further passed to, it realizes and pulls nail-anvil assembly 1110, and tissue to be cut is clamped in nail anvil group
Between part 1110 and storage screw assembly 1120.Then, changeover module 1220 is set, output mode is changed into the second output mode,
Firing button component 1280 exports arming signal by control circuit at this time, and the power that driving assembly 1210 exports is passed to the
Two power output portions 1240, and ejector pin component 1122 is further passed to, ejector pin component 1122 drives cutter and pushing slice of nail, and
The anastomosis staple in ring-shaped staple storehouse 1123 is driven, the percussion of the cutting suturing part 1100 is realized, completes the cutting and suture of tissue.
The firing button component 1280 can be set in shell 1270.
Hand-held part 1200 further includes reset button 1290.After the cutting and suture for completing tissue, changeover module 1220 is set,
Output mode is switched back into the first output mode, reset button 1290 provides driving signal, control driving by control circuit 1260
Component 1210.The power that driving assembly 1210 exports is transferred again to nail anvil actuator 1112, keeps nail-anvil assembly 1110 separate
Screw assembly 1120 is stored up, realizes the release for being sewn tissue.
Fig. 3 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model first embodiment；Fig. 4 is
According to the schematic diagram of the single motor electrical surgical instrument changeover module of the utility model first embodiment；Fig. 5 is according to this reality
With the dismantling schematic diagram of the part changeover module of the changeover module of novel first embodiment.Driving assembly 1210, including motor
1211 have drive shaft 12111 with driving gear 1212, the driving component 1210.The driving gear is arranged in the driving
On axis 12111, rotated with the drive shaft 12111.Driving assembly 1210 can also include the reduction gearbox with electric drilling match setting
And/or encoder.
Changeover module 1220 can be engaged with the driving component 1210, and changeover module 1220 includes first gear component
1221, second gear component 1222, third gear assembly 1223, axis 1224 and switching shift fork 1225.The first gear component
1221, second gear component 1222 and third gear assembly 1223 are arranged on the axis 1224, and can revolve around the axis 1224
Turn.The first gear component 1221 includes first gear portion 12211, the first engaging section 12212 and the second engaging section 12213.
The first gear portion 12211 is engaged with the driving gear 1212 of the driving component 1210, receives the driving component 1210
Power input.The second gear component 1222 includes second gear portion 12221 and third engaging section 12222；The third
Gear assembly 1223 includes third gear part 12231 and the 4th engaging section 12232.Above-mentioned engaging section can for gear meshing portions or
Spline engagement portion.
First engaging section 12212 of the first gear component 1221 can be with the third of the second gear component 1222
Engaging section 12222 is intermeshed, and enables the first gear component 1221 is synchronous with the second gear component 1222 to revolve
Turn；Second engaging section 12213 of the first gear component 1221 can be engaged with the 4th of the third gear assembly 1223
Portion 12232 is intermeshed, and enables the first gear component 1221 and 1223 synchronous rotary of third gear assembly.
Stirring switching shift fork 1225 can be such that first gear component 1221 switches at least two positions, when switching shift fork 1225 will be described
When first gear component 1221 is pushed into first position, the first engaging section 12212 of the first gear component 1221 and the second tooth
The third engaging section 12222 of wheel assembly 1222 is intermeshed, so that the first gear component 1221 and the second gear group
Part 1222 being capable of synchronous rotary.When switching shift fork 1225 the first gear component 1221 being pushed into the second position, described the
4th engaging section 12232 of the second engaging section 12213 and third gear assembly 1223 of one gear assembly 1221 is intermeshed, and is made
It obtains the first gear component 1221 and the third gear assembly 1223 being capable of synchronous rotary.
Based on above structure, the changeover module 1220, which is realized, inputs the power obtained from the driving component 1210,
It is exported by the second gear component 1222 and the third gear assembly 1223 to other components in a manner of changeable.The
These three gear assembly co-axial alignments of one gear assembly 1221, second gear component 1222 and third gear assembly 1223.Although
A kind of gear part diameter Relationship of specific gear assembly is shown in Fig. 1, but this is not intended as the relationship to gear diameter
Limitation, can be according to the diameter Relationship of transmission ratio appropriate adjustment gear.
First power output component 1230, including the first power gear 1231, first rotation drive rod 1232 and first pass
Moving part 1233；First power gear 1231 can be nibbled with the second gear component 1222 of the changeover module 1220
It closes.The first rotation drive rod 1232 and first driving member 1233 cooperate, so that the first rotation drive rod
1232 can drive the substantially linear movement of first driving member 1233.First driving member 1233 can be with nail anvil actuator
1112 connections, realize the transmitting of power.Nail anvil actuator 1112 realizes control nail-anvil assembly by driving nail-anvil assembly 1120
1110 and storage screw assembly 1120 closure and opening.
When the first gear component 1221 is pushed into first position by switching shift fork 1225, the first gear component
The third engaging section 12222 of 1221 the first engaging section 12212 and second gear component 1222 is intermeshed, so that described first
Gear assembly 1221 and the second gear component 1222 being capable of synchronous rotaries.As described in the second gear component 1222
First power gear 1231 of second gear portion 12221 and the first power output component 1230 is in meshing state, thus
Power from driving assembly 1210 is passed to the first power output component 1230.Wherein first rotation drive rod 1232 be can
Rotation.First rotation drive rod 1232 can be at least partly screwed screw rod or threaded rod.First driving member 1233
It is matched with the screw thread of the screw rod or threaded rod.Pin can be had on first driving member 1233, pin is along screw rod or threaded rod
Threading action makes the first driving member 1233 generate linear motion.As shown in figure 3, the screw thread of the speed change screw rod includes first area
And second area, the first area is relative to second area closer to the first power gear 1231.The screw pitch of the first area is big
In the screw pitch of second area.To provide nail anvil nail bin in the quick-make at closure initial stage, and the pressure in closure latter stage is closed
It closes.
Second power output component 1240, including the second power gear 1241, second rotation drive rod 1242 and second pass
Moving part 1243.Second power gear 1241 can be engaged with the third gear assembly 1223 of the changeover module 1220.Institute
It states the second rotation drive rod 1242 to cooperate with second driving member 1243, enables described second to rotate drive rod 1242
Enough drive the substantially linear movement of second driving member 1243.Second driving member 1243 can pass through with ejector pin component 1122
Ejector pin drive rod 1244 connects, and to realize the transmitting of power, completes the percussion of cutter and anastomosis staple.
When the first gear component 1221 is pushed into the second position by switching shift fork 1225, the first gear component
1221 are intermeshed with third gear assembly 1223 by the second engaging section 12213 and the 4th engaging section 12232, the third
Second power gear 1241 of the third gear part 12231 of gear assembly 1223 and the second power output component 1240
In meshing state, thus the power from driving assembly 1210 is passed to the second power output component 1240.Power is from
Two power output components 1240 are transferred to the ejector pin component 1122 of cutting suturing part 1100.Wherein the second rotation drive rod 1242 is
It is rotatable.Second rotation drive rod 1242 can be at least partly screwed screw rod or threaded rod.Second driving member
1243 match with the screw thread of the screw rod or threaded rod.Pin can be had on second driving member 1243, pin is along screw rod or screw thread
The threading action of bar makes the second driving member 1243 generate linear motion.The screw rod or threaded rod, the screw rod or threaded rod can be
Speed change screw rod or speed change threaded rod.
The drive shaft 12111 of the driving component 1210 and the axis 1224 of the changeover module 1220 are substantially parallel.Into
One step, the first rotation of the drive shaft 12111 of the driving component 1210 and the first power output component 1230 drives
Bar 1232 is substantially parallel.Further, the drive shaft 12111 of 1210 component of the driving component and second power are defeated
The second rotation drive rod 1242 of component 1240 is substantially parallel out.
Fig. 6 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model second embodiment；Fig. 7 is
According to the schematic diagram of the single motor electrical surgical instrument changeover module of the utility model second embodiment.The changeover module 2220
It can be engaged with driving assembly 2210, changeover module 2220 includes first gear component 2221, second gear component 2222, third
Gear assembly 2223, axis 2224 and switching shift fork 2225；The first gear component 2221 is located at the second gear component
Between 2222 and the third gear assembly 2223.The first gear component 2221, second gear component 2222 and third tooth
Wheel assembly 2223 is connected with each other, and is arranged on the axis 2224.The first gear component 2221,2222 and of second gear component
Third gear assembly 2223 can rotate simultaneously.The first gear component 2221 includes first gear；The second gear group
Part 2222 includes second gear；And the third gear assembly 2223 includes third gear.The first gear component 2221
It is engaged with the driving gear 2212 of the driving component 2210, receives the power input of the driving component 2210.Stir switching
Shift fork 2225 can be such that first gear component 2221 switches at least two positions.When switching shift fork 2225 is by the first gear
When component 2221 is pushed into first position, the second gear component 2222 is moved with the first of the first power output component 2230
Powershift gear portion 2231 is in meshing state；The third gear assembly 2223 is separated with 2240 phase of the second power output component；It is real
Power transmission now from driving assembly 2210 is to the first power output component 2230.When switching shift fork 2225 will be described
When first gear component 2221 is pushed into the second position, the third gear assembly 2223 and the second power output component 2240
The engagement of the second power teeth wheel portion 2241, and the second gear component 2222 and the first power output component 2230 are mutually
Separation；It realizes the power transmission from driving assembly 2210 to the second power output component 2240.
Based on above structure, the changeover module 2220, which is realized, inputs the power obtained from the driving component 2210,
It is exported by the second gear component 2222 and the third gear assembly 2223 to other components in a manner of changeable.The
These three gear assembly co-axial alignments of one gear assembly 2221, second gear component 2222 and third gear assembly 2223.
Fig. 8 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model third embodiment；Fig. 9 is
According to the schematic diagram of the single motor electrical surgical instrument changeover module of the utility model third embodiment.The changeover module 3220
Can be engaged with the driving component 3210, changeover module 3220 include first gear component 3221, second gear component 3222,
Third gear assembly 3223, axis 3224 and switching shift fork 3225；The second gear component 3222 and the third gear assembly
3223 is ipsilateral positioned at first gear component 3221, although Fig. 8 only lists the second gear component 3222 and is located at first gear
Between component 3221 and the third gear assembly 3223；In actual conditions, the third gear assembly 3223 can also be located at
Between first gear component 3221 and the second gear component 3222.The first gear component 3221, second gear component
3222 and third gear assembly 3223 be connected with each other, be arranged on the axis 3224；Second gear component 3222 and third gear
Component 3223 can be directly fixedly connected, and first gear component can be connected with second gear component 3222 by connecting cylinder 3226
It connects.The first gear component 3221, second gear component 3222 and third gear assembly 3223 can rotate simultaneously.Described
One gear assembly 3221 includes first gear；The second gear component 3222 includes second gear；And the third gear
Component 3223 includes third gear.The first gear component 3221 and the driving gear 3212 of the driving component 3210 are nibbled
It closes, receives the power input of the driving component 3210.Stirring switching shift fork 3225 can make first gear component 3221 extremely
Few two positions switching.When the first gear component 3221 is pushed into first position by switching shift fork 3225, second tooth
First power teeth wheel portion 3231 of wheel assembly 3222 and the first power output component 3230 is in meshing state；The third
Gear assembly 3223 is separated with 3240 phase of the second power output component；It realizes the power transmission from driving assembly 3210 to institute
State the first power output component 3230.When the first gear component 3221 is pushed into the second position by switching shift fork 3225, institute
Third gear assembly 3223 is stated to engage with the second power teeth wheel portion 3241 of the second power output component 3240, and described
Two gear assemblies 3222 are separated from each other with the first power output component 3230；It realizes the power from driving assembly 3210
It is delivered to the second power output component 3240.
Based on above structure, the changeover module 3220, which is realized, inputs the power obtained from the driving component 3210,
It is exported by the second gear component 3222 and the third gear assembly 3223 to other components in a manner of changeable.The
These three gear assembly co-axial alignments of one gear assembly 3221, second gear component 3222 and third gear assembly 3223.
In surgical procedure, hemorrhoidal tissue to be cut off is placed on the cavity inside the electronic stapler storage screw assembly of anal intestine
In.Changeover module is held in the state being meshed with the first power output component by switching shift fork, is switched shift fork at this time and is played
The effect of insurance, due to not engaged with the second power output component, it is therefore prevented that the cutting suturing part mistakenly hit hair in operating process.It presses
Dynamic firing button component provides closure signal to control circuit, makes driving assembly output power, makes nail-anvil assembly to close to storage nail
The direction of component moves, and hemorrhoidal tissue to be cut off is clamped.Then, switching shift fork is stirred, changeover module is moved to and the
The position that two power output components are meshed.Firing button component is pressed, arming signal is provided to control circuit, makes driving assembly
Output power, and the power is transferred to the second power output component, the cutter of driving ejector pin component are completed cutting, are kissed simultaneously
Dowel sutures the surface of a wound.After keeping specific time, control circuit is driven in the reverse direction the motor counter motion offer of driving assembly
Power retracts cutter and ejector pin component.Switching shift fork is stirred, changeover module is moved to and is mutually nibbled with the first power output component
The position of conjunction.Reset button is pressed, reset signal is provided to control circuit, so that driving assembly is provided reverse actuating force, make nail anvil group
Part is moved to the direction far from storage screw assembly, and cutting suturing part opens, and grasped tissue is released.Stapler is withdrawn from.
Figure 10 is the schematic diagram according to a kind of single motor electrical surgical instrument of the 4th embodiment of the utility model；Figure 11
It is the schematic diagram according to the cutting suturing part of the single motor electrical surgical instrument of the 4th embodiment of the utility model.According to this reality
It is tubular electronic stapler 400 with the electrical surgical instrument of novel 4th embodiment, comprising: cut suturing part 4100 and hold
Portion 4200.The clamping, cutting and suture of dialysis alimentary canal tissue may be implemented in cutting suturing part 4100, realizes dialysis alimentary canal group
The connection knitted.Cutting suturing part 4100 includes nail-anvil assembly 4110 and storage screw assembly 4120.Nail-anvil assembly 4110 is supported including annular
Nail seat 4111 and nail anvil rod 4112.Storing up screw assembly 4120 includes storage screw assembly shell 4121, ejector pin component (not shown), annular
Nail bin 4123, nail anvil actuator 4124 and annular cutter 4125.Anastomosis staple (not shown) is provided in annular nail bin 4123.
Nail anvil actuator 4124 is removably connect with nail-anvil assembly, drives nail-anvil assembly 4110 by nail anvil actuator 4124
Moving forward and backward for axial direction is realized in the axial direction, realizes clamping and release for tissue.
Hand-held part 4200 includes: that driving assembly 4210, changeover module 4220, the first power output component 4230, second are dynamic
Power output precision 4240, power supply module 4250, control circuit 4260 and shell 4270.Power supply module 4250 is entire electric hand
Art instrument provides electric energy, including battery, battery can be disposable battery or rechargeable battery.Battery can be fixed on hand-held part
In 4200, it can also be removeably positioned in hand-held part 4200.Driving assembly 4210, including driving 4212 He of gear
Motor 4211；It can also include the reduction gearbox and/or encoder used with electric drilling match.
Control circuit 4260 includes circuit board and circuit element.The control circuit 4260 includes input port and output end
Mouthful, input signal is obtained by input port, provides output signal by output port.Control circuit 4260 connects the driving
Component 4210, and control the driving component 4210.
Shell 4270 can accommodate driving assembly 4210, changeover module 4220, power supply module 4250 and control circuit
4260.And at least part of the first power output component 4230 and the second power output component 4240 can be accommodated.
Hand-held part 4200 further includes firing button component 4280；The firing button component 4280 and the control circuit
4260 connections, for providing the driving signal for driving tubular electronic stapler 400.Firing button component 4280 is pressed, percussion is pressed
Button component 4280 provides nail anvil nail bin closure signal or arming signal, control circuit to the signal input port of control circuit 4260
4260 output port is passed to 4210 output drive signal of driving assembly, the outside output power of driving assembly 4210, power
To cutting suturing part 4100.Under the first output mode, firing button component 4280 exports nail anvil nail by control circuit 4260
Storehouse closure signal, the power that driving assembly 4210 exports is passed to the first power output portion 4230, and further passes to nail
Anvil actuator 4122 is realized and pulls nail-anvil assembly 4110, and alimentary canal tissue is clamped in nail-anvil assembly 4110 and storage screw assembly
Between 4120.Then, changeover module 4220 is set, output mode is changed into the second output mode, at this time firing button component
4280 export arming signal by control circuit, and the power that driving assembly 4210 exports is passed to the second power output portion
4240, and ejector pin component is further passed to, ejector pin component drives cutter 4125 and pushing slice of nail, and drives ring-shaped staple storehouse
Anastomosis staple in 4123 realizes the percussion of the cutting suturing part 4100, completes the cutting and suture of tissue.The firing button
Component 4280 can be set in shell 4270.
Hand-held part 4200 further includes reset button 4290.After the cutting and suture for completing tissue, changeover module 4220 is set,
Output mode is switched back into the first output mode, reset button 4290 provides driving signal, control driving by control circuit 4260
Component 4210.The power that driving assembly 4210 exports is transferred again to nail anvil actuator 4122, keeps nail-anvil assembly 4110 separate
Screw assembly 4120 is stored up, realizes the release for being sewn tissue.
Figure 12 is the partial schematic diagram according to the single motor electrical surgical instrument of the utility model first embodiment；Figure 13
It is the schematic diagram according to the single motor electrical surgical instrument changeover module of the utility model first embodiment；Figure 14 is according to this
The dismantling schematic diagram of the part changeover module of the changeover module of utility model first embodiment.Driving assembly 4210, including electricity
Machine 4211 and driving gear 4212, the driving component 4210 have drive shaft 42111.The driving gear is arranged described
In drive shaft 42111, rotated with the drive shaft 42111.Driving assembly 4210 can also include subtracting with what electric drilling match was arranged
Fast case and/or encoder.
Changeover module 4220 can be engaged with the driving component 4210, and changeover module 4220 includes first gear component
4221, second gear component 4222, third gear assembly 4223, axis 4224 and switching shift fork 4225.The first gear component
4221, second gear component 4222 and third gear assembly 4223 are arranged on the axis 4224, and can revolve around the axis 4224
Turn.The first gear component 4221 includes first gear portion 42211, the first engaging section 42242 and the second engaging section 42213.
The first gear portion 42211 is engaged with the driving gear 4212 of the driving component 4210, receives the driving component 4210
Power input.The second gear component 4222 includes second gear portion 42221 and third engaging section 42222；The third
Gear assembly 4223 includes third gear part 42231 and the 4th engaging section 42232.Above-mentioned engaging section can for gear meshing portions or
Spline engagement portion.
First engaging section 42242 of the first gear component 4221 can be with the third of the second gear component 4222
Engaging section 42222 is intermeshed, and enables the first gear component 4221 is synchronous with the second gear component 4222 to revolve
Turn；Second engaging section 42213 of the first gear component 4221 can be engaged with the 4th of the third gear assembly 4223
Portion 42232 is intermeshed, and enables the first gear component 4221 and 4223 synchronous rotary of third gear assembly.
Stirring switching shift fork 4225 can be such that first gear component 4221 switches at least two positions, when switching shift fork 4225 will be described
When first gear component 4221 is pushed into first position, the first engaging section 42242 of the first gear component 4221 and the second tooth
The third engaging section 42222 of wheel assembly 4222 is intermeshed, so that the first gear component 4221 and the second gear group
Part 4222 being capable of synchronous rotary.When switching shift fork 4225 the first gear component 4221 being pushed into the second position, described the
4th engaging section 42232 of the second engaging section 42213 and third gear assembly 4223 of one gear assembly 4221 is intermeshed, and is made
It obtains the first gear component 4221 and the third gear assembly 4223 being capable of synchronous rotary.
Based on above structure, the changeover module 4220, which is realized, inputs the power obtained from the driving component 4210,
It is exported by the second gear component 4222 and the third gear assembly 4223 to other components in a manner of changeable.The
These three gear assembly co-axial alignments of one gear assembly 4221, second gear component 4222 and third gear assembly 4223.Although
A kind of gear part diameter Relationship of specific gear assembly is shown in Fig. 1, but this is not intended as the relationship to gear diameter
Limitation, can be according to the diameter Relationship of transmission ratio appropriate adjustment gear.
First power output component 4230, including the first power gear 4231, first rotation drive rod 4232 and first pass
Moving part 4233；First power gear 4231 can be nibbled with the second gear component 4222 of the changeover module 4220
It closes.The first rotation drive rod 4232 and first driving member 4233 cooperate, so that the first rotation drive rod
4232 can drive the substantially linear movement of first driving member 4233.First driving member 4233 can be with nail anvil actuator
4124 connections, realize the transmitting of power.Nail anvil actuator 4124 realizes control nail-anvil assembly by driving nail-anvil assembly 4110
4110 and storage screw assembly 4120 closure and opening.
When the first gear component 4221 is pushed into first position by switching shift fork 4225, the first gear component
The third engaging section 42222 of 4221 the first engaging section 42242 and second gear component 4222 is intermeshed, so that described first
Gear assembly 4221 and the second gear component 4222 being capable of synchronous rotaries.As described in the second gear component 4222
First power gear 4231 of second gear portion 42221 and the first power output component 4230 is in meshing state, thus
Power from driving assembly 4210 is passed to the first power output component 4230.Wherein first rotation drive rod 4232 be can
Rotation.First rotation drive rod 4232 can be at least partly screwed screw rod or threaded rod.First driving member 4233
It is matched with the screw thread of the screw rod or threaded rod.Pin can be had on first driving member 4233, pin is along screw rod or threaded rod
Threading action makes the first driving member 4233 generate linear motion.As shown in figure 12, the screw thread of the speed change screw rod includes first area
And second area, the first area is relative to second area closer to the first power gear 4231.The screw pitch of the first area is big
In the screw pitch of second area.To provide nail anvil nail bin in the quick-make at closure initial stage, and the pressure in closure latter stage is closed
It closes.
Second power output component 4240, including the second power gear 4241, second rotation drive rod 4242 and second pass
Moving part 4243.Second power gear 4241 can be engaged with the third gear assembly 4223 of the changeover module 4220.Institute
It states the second rotation drive rod 4242 to cooperate with second driving member 4243, enables described second to rotate drive rod 4242
Enough drive the substantially linear movement of second driving member 4243.Second driving member 4243 can pass through ejector pin with ejector pin component
Drive rod 4244 connects, and to realize the transmitting of power, completes the percussion of cutter 4125 and anastomosis staple.
When the first gear component 4221 is pushed into the second position by switching shift fork 4225, the first gear component
4221 are intermeshed with third gear assembly 4223, the third gear part 42231 of the third gear assembly 4223 and institute
The second power gear 4241 for stating the second power output component 4240 is in meshing state, thus dynamic from driving assembly 4210
Power is passed to the second power output component 4240.Power is transferred to cutting suturing part 4100 from the second power output component 4240
Ejector pin component.Wherein the second rotation drive rod 4242 is rotatable.Second rotation drive rod 4242 can be at least partly
Screwed screw rod or threaded rod.Second driving member 4243 is matched with the screw thread of the screw rod or threaded rod.Second driving member
Pin can be had on 4243, pin makes the second driving member 4243 generate linear motion along screw rod or the threading action of threaded rod.
The drive shaft 42111 of the driving component 4210 and the axis 4224 of the changeover module 4220 are substantially parallel.Into
One step, the first rotation of the drive shaft 42111 of the driving component 4210 and the first power output component 4230 drives
Bar 4232 is substantially parallel.Further, the drive shaft 42111 of 4210 component of the driving component and second power are defeated
The second rotation drive rod 4242 of component 4240 is substantially parallel out.
As shown, the changeover module 4220 in the 4th embodiment and the changeover module 1220 in first embodiment
Structure having the same.
In surgical procedure, alimentary canal tissue (intestines intestines or stomach) to be connected is placed on tubular electronic stapler and stores up nail group
In cavity inside part.Changeover module is held in the state being meshed with the first power output component by switching shift fork, is cut at this time
It changes shift fork and plays the role of insurance, due to not engaged with the second power output component, it is therefore prevented that the cutting seam in operating process
Conjunction portion mistakenly hit hair.Firing button component is pressed, closure signal is provided to control circuit, makes driving assembly output power, make nail anvil
Component is moved to close to the direction of storage screw assembly, by alimentary canal clamp tissue to be cut off.Then, switching shift fork is stirred, will be cut
It changes component and is moved to the position being meshed with the second power output component.Firing button component is pressed, is hit to control circuit offer
It signals, makes driving assembly output power, and the power is transferred to the second power output component, driving is arranged in ejector pin component
On cutter complete cutting, while anastomosis staple sutures the surface of a wound.After keeping specific time, control circuit makes driving assembly
Motor counter motion provides reverse actuating force, and cutter and ejector pin component are retracted.Switching shift fork is stirred, changeover module is mobile
To the position being meshed with the first power output component.Reset button is pressed, reset signal is provided to control circuit, makes driving assembly
Reverse actuating force is provided, moves nail-anvil assembly to the direction far from storage screw assembly, cutting suturing part opens, grasped tissue
It is released.Stapler is withdrawn from.
Tubular anastomat and anorectal anastomat require the closure that driving nail-anvil assembly first completes nail anvil nail bin, realization group
The clamping knitted；Next the two requires driving ejector pin component and cutter complete the cutting of tissue.Nail anvil and ejector pin component two
The motion process of person is mutually indepedent, and the driving of the two must be realized by two relatively independent drivings or drive mechanism.Due to this
The structure having the same of changeover module 1220 in changeover module 4220 and first embodiment in 4th embodiment, thus
Switching construction 2220,3220 in second and third embodiment of the utility model can be equally used for driven tubular stapler.
The utility model provides single motor electrical surgical instrument, can be realized and realizes that tissue is cut by motor-driven mode
It cuts and is fired with anastomosis staple.The single motor electrical surgical instrument can be realized the closure of stapler by single motor, fire and answer
Position.Single motor electrical surgical instrument provided by the utility model, can steadily fire anastomosis staple.Realize the steady cutting to tissue
With and effectively suture.Postoperative hemorrhage is reduced, accelerates patient and restores.The utility model is realized double using single motor and switching construction
Driving force output, reduces the complexity of the structure of electrical surgical instrument, has saved cost.Simultaneously by initial driving shape
The setting of state forms the safety structure for preventing mistakenly hit from sending out.
The preferable embodiment of the utility model is explained above, but is not to be construed as the limit to claim
System.The utility model is not only limited to embodiment of above, and specific structure is allowed to vary, all independently to want in the utility model
Made various change is within the protection scope of the present utility model in the protection scope asked.
Claims (12)
1. a kind of single motor electrical surgical instrument, which is characterized in that the single motor electrical surgical instrument includes:
Suturing part is cut, the cutting suturing part includes nail-anvil assembly and storage screw assembly；The nail-anvil assembly includes that annular supports nail
Seat；The storage screw assembly includes storage screw assembly shell, annular cutter, ejector pin component and annular nail bin；And
Hand-held part, the hand-held part include:
Power supply module；
Driving assembly, including driving gear and motor；
Changeover module, the changeover module can be engaged with the driving component obtains power input；The changeover module includes
Axis, output switching part and multiple gear assemblies；The gear assembly is engaged with the driving gear of the driving component；It stirs
The output switching part can make the changeover module be in the first output mode or the second output mode；
First power output component, when the changeover module is in the first output mode, the changeover module it is the multiple
One in gear assembly is engaged with the gear assembly of the first power output component；
Second power output component, when the changeover module is in the second output mode, the changeover module it is the multiple
One in gear assembly is engaged with the gear assembly of the second power output component；The second power output component and institute
State the connection of ejector pin component；
Control circuit, the control circuit connects the driving component, and controls the driving component；And
Shell.
2. single motor electrical surgical instrument according to claim 1, which is characterized in that
The multiple gear assembly of the changeover module includes first gear component, second gear component and third gear set
Part；The first gear component includes first gear portion, the first engaging section and the second engaging section；The first gear portion with it is described
The driving gear of driving assembly engages；The second gear component includes second gear and third engaging section；The third gear
Component includes third gear and the 4th engaging section；
Under first output mode, the third of the first engaging section of the first gear component and the second gear component
Engaging section intermeshing, enables the first gear component and the second gear component synchronous rotary；Second tooth
The second gear of wheel assembly is engaged with the first power gear of the first power output component；
Under second output mode, the 4th of the second engaging section of the first gear component and the third gear assembly the
Engaging section intermeshing, enables the first gear component and the third gear assembly synchronous rotary；The third tooth
The third gear of wheel assembly is engaged with the second power gear of the second power output component.
3. single motor electrical surgical instrument according to claim 1, which is characterized in that
The multiple gear assembly of the changeover module includes first gear component, second gear component and third gear set
Part；The first gear component includes first gear, and the first gear is engaged with the driving gear of the driving component；It is described
Second gear component includes second gear；The third gear assembly includes third gear；The first gear, second gear and
Third gear is connected with each other, and can be rotated simultaneously；
Under first output mode, the second gear and the first power gear of the first power output component are nibbled
It closes；
Under second output mode, the second power gear of the third gear and the second power output component is nibbled
It closes.
4. single motor electrical surgical instrument according to claim 3, which is characterized in that the first gear component is located at institute
It states between second gear component and the third gear assembly；Or the first gear component is located at the second gear component
It is ipsilateral with the third gear assembly.
5. single motor electrical surgical instrument described in any one of -4 according to claim 1, which is characterized in that described first is dynamic
Power output precision, including the first power gear, the first rotation drive rod and the first driving member；First power gear with it is described
First rotation drive rod is fixedly connected, and first power gear and described first is enabled to rotate drive rod synchronous rotary；
The first rotation drive rod and first driving member cooperate, and the first rotation drive rod are driven described
First driving member is moved along the first rotation drive rod.
6. single motor electrical surgical instrument according to claim 5, which is characterized in that the first rotation drive rod is silk
Bar or threaded rod.
7. single motor electrical surgical instrument according to claim 6, which is characterized in that the screw rod or threaded rod are speed changes
Screw rod or speed change threaded rod.
8. single motor electrical surgical instrument described in any one of -4 according to claim 1, which is characterized in that described second is dynamic
Power output precision includes the second power gear, the second rotation drive rod and the second driving member；Second power gear with it is described
Second rotation drive rod is fixedly connected, and second power gear and described second is enabled to rotate drive rod synchronous rotary；
The second rotation drive rod and second driving member cooperate, and the second rotation drive rod are driven described
Second driving member is moved along the second rotation drive rod.
9. single motor electrical surgical instrument according to claim 8, which is characterized in that the second rotation drive rod is silk
Bar or threaded rod.
10. single motor electrical surgical instrument described in any one of -4 according to claim 1, which is characterized in that single electricity
Machine electrical surgical instrument further includes firing button component, and the firing button component is connect with the control circuit, for providing
Control the signal of the driving component movement.
11. single motor electrical surgical instrument described in any one of -4 according to claim 1, which is characterized in that single electricity
Machine electrical surgical instrument further includes reset button, and the reset button is connect with the control circuit, controls the driving for providing
The signal of component movement.
12. single motor electrical surgical instrument described in any one of -4 according to claim 1, which is characterized in that single electricity
Machine electrical surgical instrument is anorectal anastomat or tubular anastomat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175854.XU CN209564168U (en) | 2018-12-24 | 2018-12-24 | Single motor electrical surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175854.XU CN209564168U (en) | 2018-12-24 | 2018-12-24 | Single motor electrical surgical instrument |
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| Publication Number | Publication Date |
|---|---|
| CN209564168U true CN209564168U (en) | 2019-11-01 |
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ID=68330874
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822175854.XU Active CN209564168U (en) | 2018-12-24 | 2018-12-24 | Single motor electrical surgical instrument |
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| CN (1) | CN209564168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674822A (en) * | 2020-12-01 | 2021-04-20 | 无锡贝恩外科器械有限公司 | Power transmission mechanism of electric endoscope anastomat |
| CN114224497A (en) * | 2022-02-25 | 2022-03-25 | 极限人工智能有限公司 | Surgical instrument and surgical robot |
-
2018
- 2018-12-24 CN CN201822175854.XU patent/CN209564168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674822A (en) * | 2020-12-01 | 2021-04-20 | 无锡贝恩外科器械有限公司 | Power transmission mechanism of electric endoscope anastomat |
| CN114224497A (en) * | 2022-02-25 | 2022-03-25 | 极限人工智能有限公司 | Surgical instrument and surgical robot |
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