CN209644987U - Firing lock and stapler - Google Patents
Firing lock and stapler Download PDFInfo
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- CN209644987U CN209644987U CN201920187434.5U CN201920187434U CN209644987U CN 209644987 U CN209644987 U CN 209644987U CN 201920187434 U CN201920187434 U CN 201920187434U CN 209644987 U CN209644987 U CN 209644987U
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- percussion
- button
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Abstract
The utility model provides a kind of firing lock and stapler, the firing lock includes actuating lever, percussion handle and button assembly, percussion handle is internally provided with a pin, after button assembly is in initial position and percussion handle is held, the first end of pin protrudes from the first end of percussion handle and the backstop slot into actuating lever, percussion handle are non-rotatable relative to actuating lever；When button assembly moves towards percussion handle and pressing lever is made to travel further into the inside of percussion handle, the second extreme direction that pressing lever suppresses first end towards the percussion handle of pin is moved, so that the first end of pin and backstop slot are detached from.The utility model provides insurance pin, when in the backstop slot that pin is inserted into actuating lever, operator can not hold the percussion that percussion handle carries out stapler, when only button assembly is pressed, stapler percussion can be just normally carried out, to ensure that stapler uses safe, when operation being avoided to be not ready to completion mistakenly hit hair.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of firing lock and stapler.
Background technique
Disease of digestive tract is high-incidence one of the disease of the mankind, over the course for the treatment of, is often used the hand that stapler replaces doctor
Work operation carries out the physiological tissues such as alimentary canal identical.Linear anastomat is a kind of common surgical operating instrument, is adopted mostly
With linear bookbinding form, it coincide during operation to physiological tissues such as oesophagus, stomach, enteron aisles.
Linear anastomat generally comprises instrument platform and the head for being removably installed in the platform, and head can pass through
Puncture outfit passes through the small notch on body and implements operation to approach operative site.Specifically, instrument platform includes percussion handle, can
The head of disassembly includes a nail bin connector and the nail head for being installed on nail bin connector distal end, the inside setting of nail bin connector
There is percussion component, nail head is the part for implementing cutting and suture movement.Under the driving of percussion handle, percussion component can be driven
Dynamic nail head completes seaming and cutting operation.
In existing linear anastomat, when performing the operation offhand completion, doctor may be because of careless or experience
It is insufficient and mistakenly hold percussion handle, cause the mistakenly hit of stapler to be sent out, influence surgical effect, or even patient is caused to damage.
Utility model content
For the problems of the prior art, the purpose of this utility model is to provide a kind of firing lock and staplers, mention
For insurance pin, when in the backstop slot that pin is inserted into actuating lever, operator can not hold percussion handle and carry out stapler
Percussion, when only button assembly is pressed, can just be normally carried out stapler percussion.
The utility model embodiment provides a kind of firing lock, is used for stapler, and the firing lock includes: actuating lever,
The actuating lever offers a backstop slot；Percussion handle, the percussion handle are internally provided with a pin；Button assembly, institute
Stating button assembly includes pressing lever, and the first end of the pressing lever is inserted into the inside of the percussion handle；At the button assembly
In initial position, and after the percussion handle is held, the first end of the pin protrudes from the percussion handle and enters institute
Backstop slot is stated, the percussion handle is non-rotatable relative to the actuating lever；The button assembly is from the initial position direction
When the percussion handle moves and the pressing lever is made to travel further into the inside of the percussion handle, the pressing lever compacting
The first end of the pin towards the percussion handle the second extreme direction move so that the first end of the pin with it is described
Backstop slot is detached from.
Optionally, the first auxiliary section is provided on the pin, first auxiliary section includes the first inclined-plane, the pressing
The first end of bar is provided with the second auxiliary section, and second auxiliary section includes third inclined-plane；
When the pressing lever is in the initial position, the third inclined-plane is bonded with first inclined-plane, the pressing
When bar travels further into the inside of the percussion handle from the initial position, first inclined-plane is sliding along the third inclined-plane
It is dynamic, so that the second extreme direction of the first end of the pin towards the percussion handle moves.
Optionally, first auxiliary section further includes the second inclined-plane, and second inclined-plane is opposite with first inclined-plane to be set
It sets, second auxiliary section further includes the 4th inclined-plane, and the 4th inclined-plane is oppositely arranged with the third inclined-plane；
When the pressing lever is in initial position, the 4th inclined-plane is bonded with second inclined-plane.
Optionally, the first extreme direction of the intersection on first inclined-plane and second inclined-plane towards the pin is prominent
It rising, the intersection on the third inclined-plane and the 4th inclined-plane is provided with a cavity, when the pressing lever is in initial position, institute
The junction for stating the first inclined-plane and second inclined-plane enters the cavity.
Optionally, the pin slot of the percussion handle being internally provided with for placing the pin and described for placing
The pressing lever guide groove of pressing lever, the pin slot extend in a first direction, and the pressing lever guide groove extends in a second direction,
And the pin slot and the pressing lever guide groove are arranged in a crossed manner.
Optionally, the button assembly further includes interconnecting piece and guide rod, and the guide rod passes through the interconnecting piece and institute
It states pressing lever to be connected, the button guide groove of the percussion handle being internally provided with for placing the guide rod is described to lead
It is inserted into the button guide groove to the first end of bar；
Optionally, the guide rod is two, and the guide rod is elastic guide bar, and the inside of the percussion handle is set
It sets there are two the button guide groove, the first end of two guide rods is inserted into respectively in two button guide grooves.
Optionally, the side of the button guide groove is also provided with fastener sliding slot, the first end setting of the guide rod
After having fastener, the guide rod to be inserted into the button guide groove, the fastener is embedded in the fastener sliding slot.
Optionally, the button assembly further includes interconnecting piece and push button shaft, and the push button shaft passes through the interconnecting piece and institute
It states pressing lever to be connected, the push button shaft mounting groove of the percussion handle being internally provided with for placing the push button shaft is described
It is provided with a push-button reset spring in push button shaft mounting groove, the button assembly is from the initial position towards the percussion handle
When moving and the pressing lever being made to travel further into the inside of the percussion handle, the push-button reset spring deforms.
Optionally, the percussion handle is internally provided with a pin slot, and the pin is set in the pin slot, and
Pin return unit is provided between the second end of the pin and the pin slot, the pin only has the limit along the pin slot
Determine the linear motion in direction.
Optionally, the proximal end of the backstop slot is provided with the arc groove being recessed towards the inside of the actuating lever, the cause
Lever is in actuating lever initial position, and when the percussion handle is held and rotates, and the of the arc groove and the pin
One end matches and the first end of the pin is guided to enter the backstop slot.
The utility model embodiment also provides a kind of stapler, and the stapler includes the firing lock.
Firing lock and stapler provided by the utility model have the advantages that
The utility model provides a kind of firing lock for stapler, realizes kiss by the cooperation of pin and actuating lever
The percussion of clutch is insured, and after stapler closure, doctor needs to adjust the stacked state of the tissue of nail head, such as flattening group
It knits, reaches the state that can be fired；Tissue not up to can cock when, pin be inserted into actuating lever in backstop slot
In, limit the spinning movement of percussion handle, the actuator of percussion handle cannot drive actuating lever and actuating lever can not be pushed to remote
End motion, operator can not hold percussion handle and carry out the percussion of stapler, so that stapler be avoided not carry out operation standard
It is just fired before standby；Switching is realized by the pressing of button assembly in the position of pin, and button assembly is set in percussion handle, nothing
It need in addition be separately provided, as long as doctor's one hand operates, button assembly is easy to operate, and doctor is facilitated to use；This is practical new
Type can be applied not only to linear anastomat, also can be applied to other kinds of stapler.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon.
Fig. 1 is the structural schematic diagram of the firing lock of an embodiment of the present invention, and percussion handle is not held at this time, and
Button assembly is in initial position；
Fig. 2 is the percussion handle of an embodiment of the present invention and the explosive view of button assembly；
Fig. 3 is the percussion handle of an embodiment of the present invention and the structural schematic diagram of button assembly combination；
Fig. 4 is the percussion handle of an embodiment of the present invention and the side view that button assembly combines；
Fig. 5 is the cross-sectional view in the direction A-A in Fig. 4；
Fig. 6 is the perspective view of the actuating lever of an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the actuating lever of an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the percussion handle of an embodiment of the present invention, and percussion handle is held at this time, and is pressed
Button component is in initial position；
Fig. 9 is the structural schematic diagram of the percussion handle of an embodiment of the present invention, and percussion handle is held at this time, and is pressed
Button component is pressed；
Figure 10 is the structural schematic diagram of the percussion handle of an embodiment of the present invention, is at this time percussion handle during percussion
Hand is back to original state, and button assembly is in initial position.
Appended drawing reference:
1 stapler ontology, 5 pin
The first end of 2 fixed 51 pins of handle
The second end of 3 percussion handle, 52 pin
53 first auxiliary section of first end of 31 percussion handles
531 first inclined-plane of second end of 32 percussion handles
33 pin slot, 532 second inclined-plane
34 pressing lever guide groove, 6 pin reset spring
341 fastener sliding slot, 7 button assembly
35 button guide groove, 71 pressing lever
36 push button shaft mounting groove, 72 second auxiliary section
37 axle sleeve, 721 third inclined-plane
The 4th inclined-plane of 38 claw 722
4 actuating lever, 723 cavity
41 rack gear, 73 guide rod
411 rach slot, 731 fastener
42 arc groove, 74 push button shaft
43 backstop slot, 75 push-button reset spring
44 promote 76 interconnecting piece of tooth
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that this is practical new
Type will be full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.It is identical in figure
Appended drawing reference indicate same or similar structure, thus repetition thereof will be omitted.
The technical issues of in order to solve in the prior art, the utility model provide a kind of percussion lock for stapler
Structure, the firing lock include actuating lever, percussion handle and button assembly, and setting insurance pin, fires handle in percussion handle
After hand is held, pin enters in the backstop slot of actuating lever, and percussion handle cannot rotate, and stapler is in safety position at this time,
To avoid stapler from just being sent out by mistakenly hit when not being surgically prepared.Button assembly setting is in percussion handle far from fixed handle
The side of hand, and button assembly can switch the state of pin by the cooperation with pin, when doctor is surgically prepared,
Button assembly can be pressed towards the direction of percussion handle, button assembly compacting pin travels further into inside percussion handle, thus
Be detached from backstop slot, percussion handle can normally rotate uses, at this time stapler in can cock, can normally fire kiss
Clutch.
The utility model also provides a kind of stapler, including above-mentioned firing lock, passes through the insurance pin of percussion handle
With the cooperation of the backstop slot of actuating lever, mistakenly hit hair of the stapler when not being surgically prepared is avoided, and passes through percussion handle
The button assembly of upper setting realizes the switching of pin state, when pressing button assembly, normally hitting for stapler may be implemented
Hair.The utility model can be applied not only to linear anastomat, also can be applied to other kinds of stapler, such as camber line
Type stapler etc..
The structure of the firing lock of an embodiment of the present invention is further described below with reference to Fig. 1~10.Wherein, Fig. 1
Show the firing lock of the embodiment and the structure of stapler cooperation.Actuating lever 4 is set in stapler ontology 1, stapler
The side of ontology 1 is provided with fixed handle 2 and percussion handle 3.As shown in Fig. 1~7, it is provided with backstop slot 43 in actuating lever 4, hits
Hair handle 3 is internally provided with pin 5.When pin 5 is not entered in backstop slot 43, percussion handle 3 can be relative to fixed handle 2
Rotation, close to or far from fixed handle 2, when original state, percussion handle 3 is far from fixed handle 2, after percussion handle 3 is held,
Close to fixed handle 2.The pin 5 has first state and the second state, when the pin 5 is in first state, the pin
The first end of column 5 enters the backstop slot 43, and percussion handle 3 is non-rotatable relative to actuating lever 4, to realize 3 He of percussion handle
The relative limit of actuating lever 4, stapler is in safety position at this time, when the pin 5 is in the second state, the pin 5
First end and the backstop slot 43 are detached from, and the spinning movement without stopping the percussion handle 3, stapler is in and can fire at this time
State.The side of the percussion handle 3 is provided with the button assembly 7 for switching 5 state of pin, and button assembly 7 is preferably provided with
In side of the percussion handle 3 far from fixed handle 2, doctor is facilitated to operate.The button assembly 7 includes pressing lever 71, described to press
The first end of compression bar 71 is inserted into the inside of the percussion handle 3, and the button assembly 7 is in initial position and the percussion handle
After 3 are held, the first end of the pin 5 enters the backstop slot 43, discharges percussion handle 3 at this time, percussion handle 3 is in pin
The lower of 5 effect can not be back to initial position.Towards the direction push button component 7 of percussion handle 3, button assembly 7 it is whole from
Initial position is moved towards the percussion handle 3 and the inside that makes the pressing lever 71 travel further into the percussion handle 3,
The pressing lever 71, which suppresses the pin 5, transports the first end 51 of pin 5 towards 32 direction of second end of the percussion handle 3
Dynamic, so that the pin 5 enters second state from the first state, i.e., the first end of the described pin 5 is stopped from described
It is detached from retaining groove 43, while percussion handle 3 returns to initial position under the action of resetting structure.
As shown in Figure 2-5, the pin slot 33 of the percussion handle 3 being internally provided with for placing the pin 5 and use
In the pressing lever guide groove 34 for placing the pressing lever 71, the pin slot 33 is extended in a first direction, the pressing lever guiding
Slot 34 extends in a second direction, and the pin slot 33 and the pressing lever guide groove 34 are arranged in a crossed manner.The first direction is
Approximately along the length direction of the percussion handle 3.The crossover location of pin slot 33 and pressing lever guide groove 34 is the of pin 5
The cooperation position of one auxiliary section 53 and the second auxiliary section 72 of pressing lever 71, pressing lever 71 and pin 5 are in the intersection position of two slots
Set it is interlaced, so as to realize pressure from pressing lever 71 to pin 5 transmitting.Pin 5 can only along 33 direction of pin slot into
Row linear motion, switches between the first state and a second state.Pressing lever 71 can only be along the extension side of pressing lever guide groove 34
To movement.
In this embodiment, the first auxiliary section 53 is provided on the pin 5, first auxiliary section 53 includes first oblique
Face 531, the first end of the pressing lever 71 are provided with the second auxiliary section 72, and second auxiliary section 72 includes third inclined-plane 721；
When the pressing lever 71 is in initial position, the third inclined-plane 721 is bonded with first inclined-plane 531, the pressing lever 71
When traveling further into the inside of the percussion handle 3 from initial position, first inclined-plane 531 is sliding along the third inclined-plane 721
It is dynamic, so that the first end 51 of the pin 5 is moved towards 32 direction of second end of the percussion handle 3.At the visual angle of Fig. 5
In, the first inclined-plane 531 is that side is acclivitous to the left from right side, the inclined direction on third inclined-plane 721 and the first inclined-plane 531
Unanimously, from right edge, side tilts upwards to the left.It is entered further into percussion handle 3 in pressing lever 71 from the right to the left side
When portion, under the action of third inclined-plane 721, give 531 1, the first inclined-plane downward pressure, the first auxiliary section 53 drives pin 5
It is whole to be moved to the second end 32 of percussion handle 3.
Further, first auxiliary section 53 can also include the second inclined-plane 532, second inclined-plane 532 with it is described
First inclined-plane 531 is oppositely arranged, and second auxiliary section 72 can also include the 4th inclined-plane 722, the 4th inclined-plane 722 and institute
Third inclined-plane 731 is stated to be oppositely arranged；When the pressing lever 71 is in the initial position, the 4th inclined-plane 722 and described the
The fitting of two inclined-planes 532.In the visual angle of Fig. 5, the second inclined-plane 532 is that side is acclivitous to the right from left side, the 4th inclined-plane
722 is consistent with the inclined direction on the second inclined-plane 532, and from left side, side tilts upwards to the right.
As shown in figure 5, the intersection on first inclined-plane 531 and second inclined-plane 532 is towards the first of the pin 5
51 direction protrusions are held, the intersection on the third inclined-plane 721 and the 4th inclined-plane 722 is provided with a cavity 723, the pressing
When bar 71 is in initial position, the junction on first inclined-plane 531 and second inclined-plane 532 enters the cavity 723, with
It avoids in non-push button component 7, relative motion occurs for the first auxiliary section 53 and the second auxiliary section 72, is not pressing to ensure
When pressing button component 7, stability of the pressing lever 71 in the initial position.
As shown in Figure 2-5, in order to realize that button assembly 7 is preferably oriented to and avoids pressing lever 71 to exist during pressing
Button assembly 7 is detached from from percussion handle 3 when initial position, and the button assembly 7 can also include interconnecting piece 76 and guide rod
73.The guide rod 73 is connected by the interconnecting piece 76 with the pressing lever 71, and the percussion handle 3 is internally provided with
For placing the button guide groove 35 of the guide rod 73, the first end of the guide rod 73 is inserted into the button guide groove 35
In.In this embodiment, the guide rod 73 is two, and the button guide groove 35 is also two, and the guide rod 73 is
Elastic guide bar.When the guide rod 73 is in original state, two guide rods 73 open after distance be greater than two by
The distance of button guide groove 35.During installation, by two guide rods 73 to intermediate compression, so that two guide rods 73 are produced to centre
Raw certain flexible deformation, is inserted into two button guide grooves 35, makees after insertion in the elastic restoring force of guide rod 73
Under, guide rod 73 can be maintained in button guide groove 35.In order to further increase the stability of guide rod 73, avoid leading
It is unexpectedly detached from from button guide groove 35 to bar 73, the first end of the guide rod 73 is additionally provided with fastener 731, and described
The side of button guide groove 35 is provided with fastener sliding slot 341, when guide rod 73 is inserted into button guide groove 35, fastener
731 are embedded in fastener sliding slot 341, are defined with the movement to fastener 731.Therefore, guide rod 73 be merely able to along by
The extending direction of button guide groove 35 moves in a straight line, and the locking effect by fastener 731 in button guide groove 35, presses
In initial position, button assembly 7 will not be detached from compression bar 71 from percussion handle 3.
In order to realize the automatically reseting after pressing of button assembly 7, the button assembly 7 can also include 76 He of interconnecting piece
Push button shaft 74, the push button shaft 74 are connected by the interconnecting piece 76 with the pressing lever 71, the inside of the percussion handle 3
It is provided with the push button shaft guide groove 36 for placing the push button shaft 74, it is multiple that a button is provided in the push button shaft guide groove 36
Position spring 75, the button assembly 7 move from initial position towards the percussion handle 3 and make the pressing lever 71 further
When into the inside of the percussion handle 3, the push-button reset spring 75 deforms.External force on button assembly 7 is eliminated
Afterwards, the recoverable force effect of push-button reset spring 75 will push the direction movement that button assembly 7 is directed away from percussion handle 3, with
So that button assembly 7 is back to initial position.Axle sleeve 37, the button may further be provided in push button shaft guide groove 36
Axis 74 is arranged in the axle sleeve 37, during the button assembly 7 moves in the push button shaft guide groove 36, makes described
The movement of button assembly 7 is more smooth.
Further, in order to realize automatically reseting for pin 5, the second end 52 of the pin 5 and the pin slot 33 it
Between pin return unit can be set.The pin return unit can be pin reset spring 6.
As shown in Figure 6 and Figure 7, the proximal end of the backstop slot 43 is provided with the arc being recessed towards the inside of the actuating lever 4
Wire casing 42, during holding the percussion handle 3, the percussion handle 3 is from initial position to the position close to fixed handle 2
When rotation, the arc groove 42 matches with the first end 51 of the pin 5 and the first end 51 of the pin 5 is guided to enter institute
Backstop slot 43 is stated, the interference when first end 51 of pin 5 and actuating lever 4 being avoided to contact improves the first end 51 of pin 5 along actuating
The flatness that bar 4 moves.
It in the present invention, is proximally and distally for operator, wherein distally refer to distance operation
The farther away one end of person, proximal end are referred to apart from the closer one end of operator.For example, in the visual angle of Fig. 1, stapler ontology 1
Distal end refers to that left side one end in figure, proximal end refer to the right one end in figure.In the visual angle of Fig. 7, what the distal end of actuating lever 4 referred to
It is left side one end in figure, proximal end refers to the right one end in figure.
Further, actuating lever 4 the distal end of backstop slot 43 be also provided with promote tooth 44, promote tooth 44 can with hit
The claw 38 being arranged on hair handle 3 matches, and specific fit system is described in more detail below.Actuating lever 4 is from backstop slot 43
Proximal location starts to be additionally provided with rack gear 41, and rack gear 41 can be matched with the claw 38 being arranged in percussion handle 3, specific to cooperate
Mode is described in more detail below.The middle part of rack gear 41 can be set rach slot 411, and rach slot 411 realizes the to pin 5
The resigning of one end 51, resigning mode are described in more detail below.
It is further described below with reference to Fig. 1, Fig. 8 and Fig. 9 when pin 5 is in first state, the state of firing lock.Figure
It is structure when stapler is in original state shown in 1.Pin 5 and percussion handle 3 are in original state, fire at this time
The second end 32 of handle 3 is far from fixed handle 2.In the state of Fig. 1, actuating lever 4 is in actuating lever initial position at this time.At this time
Percussion handle 3 is held, so that the direction of percussion handle 3 towards fixed handle 2 is rotated close to fixed handle 2, then enters in Fig. 8 and shows
State out.The claw 38 of percussion handle 3 is contacted with the propulsion tooth 44 of actuating lever 4 and is pushed to the distal end of stapler and promotes at this time
Tooth 44 promotes tooth 44 to drive distal movement of the actuating lever 4 to stapler, i.e. the direction B along Fig. 8 of actuating lever 4 moves, activates at this time
Bar 4 is from the initial position of actuating lever 4 to stapler distal movement a distance.At this point, in the effect of pin reset spring 6
Under, the first end 51 of pin 5 enters by the guidance of arc groove 42 and is in first state in the backstop slot 43 of actuating lever 4.This
Even if when unclamp percussion handle 3, percussion handle 3 is initial since the position-limiting action of pin 5 and backstop slot 43 can not rotate return again
Position.Stapler cannot be fired at this time, be in safety position.
After doctor is surgically prepared, C presses in direction button assembly 7 along Fig. 9, and pressing lever 71 enters further into
Among percussion handle 3, under pressure, pin 5 enters towards the movement of the direction of 3 second end 32 of percussion handle from first state
Second state, the first end 51 and backstop slot 43 of pin 5 are detached from, into state shown in Fig. 9.At this point, percussion handle 3 can be with
Under resetting structure (such as reset spring) effect of percussion handle 3, rotation returns to initial position as shown in Figure 1 again.In
Percussion handle 3 is back to after initial position, and the position of claw 38 and 41 position of rack gear of actuating lever 4 are corresponding.It unclamps at this time
Button assembly 7, button assembly 7 is back to initial position under the action of push-button reset spring 75, in the work of pin reset spring 6
Under, the first end 51 of pin 5 is directed away from the direction movement of the second end 32 of percussion handle 3 and stretches out the percussion handle again
The first end 31 of hand 3.Doctor holds percussion handle 3 again so that percussion handle 3 to close to the fixed handle 2 rotation when,
The first end 51 of pin 5 is contacted with rach slot 411, and rach slot 411 realizes the resigning moved to the first end 51 of pin 5.Again
Percussion handle 3 is held, the claw 38 of percussion handle 3 is in contact with rack gear 41, and rack gear 41 is pushed to drive actuating lever 4 to stapler
Distal direction movement, to fire stapler.
Firing lock and stapler provided by the utility model have the advantages that
The utility model provides a kind of firing lock for stapler, realizes kiss by the cooperation of pin and actuating lever
The percussion of clutch is insured, and after stapler closure, doctor needs to adjust the stacked state of the tissue of nail head, such as flattening group
It knits, reaches the state that can be fired；Tissue not up to can cock when, pin be inserted into actuating lever backstop slot in,
The spinning movement of percussion handle is limited, the actuator of percussion handle cannot drive actuating lever and actuating lever can not be pushed to transport to distal end
Dynamic, operator can not hold the percussion that percussion handle carries out stapler, so that stapler be avoided not to be surgically prepared it
It is preceding just to be fired；Switching is realized by the pressing of button assembly in the position of pin, and button assembly is set in percussion handle, without another
It is separately provided outside, button assembly is easy to operate, and doctor is facilitated to operate；The utility model can be applied not only to linear type and coincide
Device also can be applied to other kinds of stapler.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (10)
1. a kind of firing lock, which is characterized in that be used for stapler, the firing lock includes:
Actuating lever, the actuating lever offer a backstop slot；
Percussion handle, the percussion handle are internally provided with a pin；
Button assembly, the button assembly include pressing lever, and the first end of the pressing lever is inserted into the inside of the percussion handle；
After the button assembly is in initial position, and the percussion handle is held, the first end of the pin protrudes from institute
It states percussion handle and enters the backstop slot, the percussion handle is non-rotatable relative to the actuating lever；The button assembly
It is moved from the initial position towards the percussion handle and the pressing lever is traveled further into the percussion handle
When portion, the second extreme direction that the pressing lever suppresses first end towards the percussion handle of the pin is moved, so that institute
The first end and the backstop slot for stating pin are detached from.
2. firing lock according to claim 1, which is characterized in that the first auxiliary section is provided on the pin, it is described
First auxiliary section includes the first inclined-plane, and the first end of the pressing lever is provided with the second auxiliary section, and second auxiliary section includes
Third inclined-plane；
When the pressing lever is in the initial position, the third inclined-plane is bonded with first inclined-plane, the pressing lever from
When the initial position travels further into the inside of the percussion handle, first inclined-plane is slided along the third inclined-plane, with
So that the second extreme direction of the first end of the pin towards the percussion handle moves.
3. firing lock according to claim 2, which is characterized in that first auxiliary section further includes the second inclined-plane, institute
The second inclined-plane is stated to be oppositely arranged with first inclined-plane, second auxiliary section further includes the 4th inclined-plane, the 4th inclined-plane with
The third inclined-plane is oppositely arranged；
When the pressing lever is in initial position, the 4th inclined-plane is bonded with second inclined-plane.
4. firing lock according to claim 3, which is characterized in that the boundary on first inclined-plane and second inclined-plane
Towards the first extreme direction protrusion of the pin, the intersection on the third inclined-plane and the 4th inclined-plane is provided at place
Chamber, when the pressing lever is in initial position, the junction on first inclined-plane and second inclined-plane enters the cavity.
5. firing lock according to claim 1, which is characterized in that the percussion handle is internally provided with for placing
The pin slot of the pin and pressing lever guide groove for placing the pressing lever, the pin slot extend in a first direction,
The pressing lever guide groove extends in a second direction, and the pin slot and the pressing lever guide groove are arranged in a crossed manner.
6. firing lock according to claim 1, which is characterized in that the button assembly further includes interconnecting piece and guiding
Bar, the guide rod are connected by the interconnecting piece with the pressing lever, and the percussion handle is internally provided with for putting
The button guide groove of the guide rod is set, the first end of the guide rod is inserted into the button guide groove；
The guide rod is two, and the guide rod is elastic guide bar, and the percussion handle is internally provided with two institutes
Button guide groove is stated, the first end of two guide rods is inserted into respectively in two button guide grooves；
The side of the button guide groove is also provided with fastener sliding slot, and the first end of the guide rod is provided with fastener, institute
After stating the guide rod insertion button guide groove, the fastener is embedded in the fastener sliding slot.
7. firing lock according to claim 1, which is characterized in that the button assembly further includes interconnecting piece and button
Axis, the push button shaft are connected by the interconnecting piece with the pressing lever, and the percussion handle is internally provided with for putting
The push button shaft mounting groove of the push button shaft is set, a push-button reset spring, the button group are provided in the push button shaft mounting groove
Part moves from the initial position towards the percussion handle and the pressing lever is made to travel further into the percussion handle
When internal, the push-button reset spring deforms.
8. firing lock according to claim 1, which is characterized in that the percussion handle is internally provided with a pin
Slot, the pin are set in the pin slot, and it is multiple that pin is provided between the second end of the pin and the pin slot
Position part, the pin only have the linear motion along the restriction direction of the pin slot.
9. firing lock according to claim 1, which is characterized in that the proximal end of the backstop slot is provided with towards the cause
The recessed arc groove in the inside of lever, the actuating lever are in initial position, and when the percussion handle is held and rotates, institute
Arc groove is stated to match with the first end of the pin and the first end of the pin is guided to enter the backstop slot.
10. a kind of stapler, which is characterized in that the stapler includes percussion lock described in any one of claims 1 to 9
Structure.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187434.5U CN209644987U (en) | 2019-02-02 | 2019-02-02 | Firing lock and stapler |
| JP2021535931A JP7441842B2 (en) | 2018-12-20 | 2019-12-20 | trigger mechanism and stapler |
| CA3121953A CA3121953A1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and stapler |
| AU2019410648A AU2019410648B2 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and anastomat |
| US17/311,215 US20220031330A1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and stapler |
| EP19900141.3A EP3900646A4 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and anastomat |
| KR1020217020013A KR20210095928A (en) | 2018-12-20 | 2019-12-20 | Launcher and stapler |
| PCT/CN2019/127100 WO2020125765A1 (en) | 2018-12-20 | 2019-12-20 | Firing mechanism and anastomat |
| BR112021010637-5A BR112021010637A2 (en) | 2018-12-20 | 2019-12-20 | Trigger Mechanism and Stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187434.5U CN209644987U (en) | 2019-02-02 | 2019-02-02 | Firing lock and stapler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209644987U true CN209644987U (en) | 2019-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920187434.5U Active CN209644987U (en) | 2018-12-20 | 2019-02-02 | Firing lock and stapler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209644987U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125765A1 (en) * | 2018-12-20 | 2020-06-25 | 天臣国际医疗科技股份有限公司 | Firing mechanism and anastomat |
| CN113331898A (en) * | 2021-07-05 | 2021-09-03 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN114259269A (en) * | 2021-12-23 | 2022-04-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| WO2024017107A1 (en) * | 2022-07-18 | 2024-01-25 | 天臣国际医疗科技股份有限公司 | Firing switching mechanism and surgical stapler |
-
2019
- 2019-02-02 CN CN201920187434.5U patent/CN209644987U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125765A1 (en) * | 2018-12-20 | 2020-06-25 | 天臣国际医疗科技股份有限公司 | Firing mechanism and anastomat |
| CN113331898A (en) * | 2021-07-05 | 2021-09-03 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN113331898B (en) * | 2021-07-05 | 2022-08-26 | 苏州优脉瑞医疗科技有限公司 | Anastomat with wear-resisting type trigger mechanism |
| CN114259269A (en) * | 2021-12-23 | 2022-04-01 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| CN114259269B (en) * | 2021-12-23 | 2023-12-26 | 苏州法兰克曼医疗器械有限公司 | Anastomat driving device with protection function and electric anastomat |
| WO2024017107A1 (en) * | 2022-07-18 | 2024-01-25 | 天臣国际医疗科技股份有限公司 | Firing switching mechanism and surgical stapler |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215123 No. 278 Dongping Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |