CN108338810A - A kind of surgical instrument - Google Patents
A kind of surgical instrument Download PDFInfo
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- CN108338810A CN108338810A CN201810284395.0A CN201810284395A CN108338810A CN 108338810 A CN108338810 A CN 108338810A CN 201810284395 A CN201810284395 A CN 201810284395A CN 108338810 A CN108338810 A CN 108338810A
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- handle
- button
- trigger
- front handlebar
- cantilever
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
- A61B2017/00424—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping ergonomic, e.g. fitting in fist
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of surgical instruments, including distal end working head, proximal handle and the lengthening bar portion extended therebetween；The handle also includes latch mechanism, and the latch mechanism includes effective model and invalid mode；The latch mechanism includes the trigger being mounted in front handlebar, button and elastic element；The button interacts with the trigger, and the trigger is driven to rotate, and realizes that latch mechanism switches between effective model and invalid mode；The button includes the first button and the second button, and first button and the second button are separately mounted to two sides of the front handlebar.
Description
Technical field
The present invention relates to Minimally Invasive Surgery instrument more particularly to a kind of laparoscopic surgical instruments containing latch mechanism.
Background technology
Surgical operating instrument has had centuries history, and doctor completes tissue with different surgical instruments in surgical operation
The operations such as crawl is sheared, separation, blood coagulation, and suture is closed, surgical operating instrument develop ripe by centuries.Laparoscope
The clinical of operation is carried out more than 30 years, just in rapid advances.Briefly, laparoscopic surgery, that is, operative doctor is using lengthening
Laparoscope hand-held apparatus, enter patient's body via the puncture channel of natural cavity or structure, complete tissue crawl, shearing,
Separation, blood coagulation, the operations such as suture closure.
Relative to Tradtional laparotomy, main advantage is to reduce wound and mitigates ailing and accelerate extensive laparoscopic surgery
It is multiple.The whole operation difficulty of endoscope-assistant surgery is larger, and the used time is longer, and operative doctor needs 1~3 hour in lasting surgical procedure.
Due to the limitation of operative space, operative doctor is frequently necessary to for a long time with difficult gesture operation instrument, and doctor is easy fatigue, very
To induction arthritis, scapulohumeral periarthritis equivalent risk.Laparoscope hand-held apparatus should meet Human Engineering Principle, support a variety of gripping hands
Method reduces extreme operation posture and the sense that lessens fatigue.
Operate it is same instrument when, different operative doctors or same operative doctor are in different operations or same operation
In in specific a certain operating process, the gimmick that doctor holds surgical instrument is had nothing in common with each other.Studies have shown that in endoscope-assistant surgery, such as
Finger gripping shown in Fig. 2 is enforced the law pinch grip (or be precision grip method precision grip) and hand as shown in Figure 3
It is most common two kinds of gimmicks that gimmick pam grip (or for energetically clinch force grip) are held in grasp.
In existing hysteroscope hand-held apparatus, for example, endoscope-assistant surgery scissors, endoscope-assistant surgery elastic separating plier, endoscope-assistant surgery nipper etc.,
As shown in Figure 1, generally use scissorstype handle, can support a variety of gripping gimmicks.In order to which organ or tissue is clamped in lasting realization,
It is existing that corresponding locking mechanism, such as Patent No. are increased using the surgery hand-held apparatus of scissorstype handle
The Chinese patent of CN2014108503121 discloses a kind of card locking device and surgical instrument of carrier state handoff functionality, however existing
Although some patents realize the clamping of tissue or organ and unlock uses, but due to the individual difference and hand of operative doctor
The complexity of art environment mainly has problems with urgently to be resolved hurrily:
On the one hand, the hand-type of different operative doctors is of different sizes, and the operation handedness of different operative doctors is also not quite similar,
The finger that existing surgical instrument can generally meet most operative doctors can carry out being normally carried out operation in operation, but seldom
It considers how to make the finger of operative doctor comfortably to operate, needless to say meets the need that minority has the operative doctor of particular/special requirement
It asks, such as：It is accustomed to the operative doctor of left slash and matching finger is carried out according to the different firmly custom of each finger of operative doctor
The zone of action；
On the other hand, how operative doctor uses the same hand, easily carries out a variety of differences in continuous surgical procedure
Gimmick switches over, for example finger gripping is enforced the law the switching between palm grip gimmick, or under different gimmick states into
The switching of row different conditions facilitates operative doctor that best hand-held posture may be used and carries out various accurate operations, and reduces
The fatigue of long-time operation；
In addition, how to need continuously clamping and the operation unclamped for tissue or organ and be not necessarily to what locking mechanism participation carried out
Quickly operation etc. is switched fast between drawing and strip operation.
By increase operation path, use mainly is combined using the surgical instrument of different function for the prior art, or
Using modes such as more people auxiliary：For example the hand-held apparatus of with locking mechanism is used in an operation path, another operation is logical
Common hand-held apparatus is used in road；Or in the same operation path by the surgical instrument of different function into traveling out abdomen
Switching.Nonetheless, also only part can meet the realization requirement of operative doctor, but increase the pain of patient, increase
Operating time and the various operation risks thus brought.
Invention content
Therefore, in order to solve problems in the prior art, in one aspect of the invention, a kind of surgical instrument is proposed, including
Distal end working head, proximal handle and the lengthening bar portion extended therebetween；The handle includes front handlebar, rear handle and connects it
Arm pivot post, and the front handlebar and rear handle can rotate relative to the arm pivot post；The working head packet
Containing a pair of of binding clip and the driving mechanism being attached thereto；The lengthening bar portion includes runner, outer bar portion and draw-in bar, the outer bar portion
Be fixed together and be mounted in front handlebar with runner, described draw-in bar one end connect with the driving mechanism and its other end with
Handle connects afterwards, wherein the handle also includes latch mechanism, and the latch mechanism includes effective model and invalid mode；The lock
Mechanism includes the trigger being mounted in front handlebar, button and elastic element；The button interacts with the trigger, drives institute
Trigger rotation is stated, realizes that latch mechanism switches between effective model and invalid mode；The button includes the first button and second
Button, first button and the second button are separately mounted to two sides of the front handlebar.
A kind of optional technical solution, wherein the button setting meets following require in the regions front handlebar A1：It is left
Hand or the right hand are enforced the law using finger gripping when operating the handle, the index finger of the hand of operation can easily stir one of them by
Button；When left or right hand operates the handle using palm grip method, the thumb of the hand of operation can easily stir wherein one
A button.
A kind of optional technical solution, wherein the regions A1 meet the following conditions：Arm pivot post is defined to rear handle
Thumb circle center position length is D；The lengthening bar portion includes first axle, crosses arm pivot post and is set with first axle vertical direction
Set second axis；The first axle and second axis intersect at intersection point, the regions A1 by from intersection point along first axle proximal end
Distally extend D/2 length and the region group that D/3 length limits is extended by intersection point to handle rotor shaft direction with along second axis
At.
A kind of optional technical solution, wherein the front handlebar includes the long and narrow sliding slot or arc through two side
Sliding slot, first button and the second button can slide in the long and narrow sliding slot or arc chute.
A kind of optional technical solution, wherein the direction of the long and narrow sliding slot is basically parallel to the lengthening bar portion.
A kind of optional technical solution, wherein the trigger includes trigger shaft, the first cam surface；The button and institute
The interaction of the first cam surface is stated, the trigger is driven to be rotated around trigger shaft, realization latch mechanism is in effective model and in vain
Switch between pattern.
A kind of optional technical solution, wherein the latch mechanism includes locking bolt and the cantilever being linked together with rear handle, institute
It includes multiple first locks teeth to state cantilever；The locking bolt includes the second lock tooth to match with the first lock tooth, and the trigger is also
Including the second cam surface and finger buckle；When the latch mechanism is effective model, the first lock tooth and the second lock tooth are mutually stung
It closes, handle closes up towards front handlebar after permission and handle is away from front handlebar opening, as lock function after limiting；Apply external force to drive
Moving the finger buckle makes the trigger be rotated around trigger shaft, and second cam surface squeezes the locking bolt so that described
Second lock tooth and the first lock tooth disengage, and handle is opened away from front handlebar after permission, as unlocking function.
A kind of optional technical solution, wherein the cantilever includes flexible lock strap, and the multiple first lock tooth is arranged soft
Property lock strap on, the flexibility lock strap includes the limit rib of both sides setting, and the front handlebar includes and the limit rib is matched leads
To slot and limits the flexible lock strap and moved along guide groove.
A kind of optional technical solution, wherein the latch mechanism includes the cantilever being linked together with rear handle；The lock machine
Structure also includes locking plate, wherein the locking plate includes the lockhole to match with the cantilever shape and size, the cantilever penetrates institute
Lockhole is stated, the trigger further includes the second cam surface and finger buckle；When the latch mechanism is effective model, the elastic element
Drive the locking plate be allowed to cantilever tight fit, handle closes up towards front handlebar after permission and handle is away from front handlebar after limiting
It opens, as lock function；Second cam surface selective can be contacted with the locking plate, apply finger described in outer power drive
Button is so that the trigger is rotated around trigger shaft, and the second cam surface drives the locking plate movement, is allowed to match with cantilever gap
It closes, handle is opened away from front handlebar after permission, as unlocking function.
Description of the drawings
In order to more fully understand the present invention essence, be described in detail below in conjunction with attached drawing, wherein：
Fig. 1 is a kind of surgical operating instrument simulation schematic diagram of the prior art；
Fig. 2 is enforced the law schematic diagram using finger gripping shown in Fig. 1；
Fig. 3 is that palm grip gimmick schematic diagram is used shown in Fig. 2；
Fig. 4 is the surgical operating instrument stereoscopic schematic diagram of the present invention；
Fig. 5 is surgical instrument finger control partition schematic diagram described in Fig. 4；
Fig. 6 is that effective model switches schematic diagram to invalid mode when Fig. 4 is enforced the law using right hand progress finger gripping；
Fig. 7 is that invalid mode switches schematic diagram to effective model when Fig. 4 is enforced the law using right hand progress finger gripping；
Fig. 8 is that effective model switches side schematic diagram to invalid mode when Fig. 4 carries out palm grip gimmick using the right hand；
Fig. 9 is that effective model switches other side schematic diagram to invalid mode when Fig. 7 carries out palm grip gimmick using the right hand；
Figure 10 is the exploded view of surgical instrument described in Fig. 9；
Figure 11 is the stereogram of button sliding block shown in Figure 10；
Figure 12 is the another three-dimensional view of button sliding block shown in Figure 11；
Figure 13 is the stereogram of trigger shown in Figure 10；
Figure 14 is locking bolt schematic diagram described in Figure 10；
Figure 15 is front handlebar schematic internal view shown in Figure 10；
Figure 16 is the schematic internal view of front handlebar lid shown in Fig. 10；
Figure 17 is the cut away view under invalid mode of the present invention；
Figure 18 is 18-18 enlarged diagrams shown in Figure 17；
Figure 19 is the cut away view under effective model of the present invention；
Figure 20 is 20-20 enlarged diagrams shown in Figure 19；
Cut away view when Figure 21 is unlocking function of the present invention；
Figure 22 is 22-22 enlarged diagrams shown in Figure 21；
Figure 23 is the exploded view of the another embodiment of the surgical instrument；
Figure 24 is the cut-away illustration under Figure 23 invalid modes；
Figure 25 is 25-25 enlarged diagrams shown in Figure 24；
In all views, identical label indicates equivalent part or component.
Specific implementation mode
Disclosed herein is embodiment of the present invention, it should be understood, however, that disclosed embodiment is only of the invention
Example, the present invention can be realized by different modes.Therefore, this disclosure is not to be construed to be restrictive, and
It is the basis only as claim, and how basis of the invention is used as introduction those skilled in the art.
With reference to figure 1-4, for convenience of stating, the side of follow-up all Proximity operation persons is defined as proximal end, and far from operator
One side is defined as distal end.
As shown in Figs. 1-3, in conjunction with described in foregoing background, work as casing especially in endoscope-assistant surgery carrying out surgical operation
Component (not shown) is inserted in place, and various Minimally Invasive Surgery instruments, such as surgery hand-held apparatus 10 can pass through sheath assembly shape
At channel be inserted into body cavity.Possibility needs while the one or more sheath assemblies of use in surgical procedure, and surgery hander
Tool 10 needs to configure one or more progress also according to operation while operating.Fig. 1 is a kind of typical surgery hand of the prior art
Holder tool 10 includes the working head 106 of distal end, proximal handle 11 and the lengthening bar portion 105 extended therebetween；The handle packet
Containing front handlebar 101, rear handle 102 and the arm pivot post 103 for connecting it, the front handlebar 101 and rear handle 102 can be relative to
The arm pivot post 103 rotates；The front handlebar 101 includes preceding finger loop 110, and the rear handle 102 includes thumb
Circle 120,111 bottom of preceding finger loop is provided with support arm 112.The upside setting unlock trigger 115 of the preceding finger loop 111
For realizing the locking and unlock of the front handlebar 101 and rear handle 102.
Current endoscope-assistant surgery generally includes operation on gallbladder, laparoscopic inguinal hernia repair, peritoneoscope stomach bottom folding hand
Art, laparoscopic splenectomy, the operations such as laparoscopic appendectomy operation.The whole operation difficulty of endoscope-assistant surgery is larger, uses
When it is longer, operative doctor needs 1~3 hour in lasting surgical procedure.In order to mitigate operation Chinese medicine growth time with difficult posture
Instrument is operated, existing surgery hand-held apparatus is a degree of to consider Human Engineering Principle, can usually support a variety of hold
Gimmick is held, it is a degree of to reduce extreme operation posture and the sense that lessens fatigue.Finger grip gimmick and such as Fig. 3 as shown in Figure 2
Shown in palm grip gimmick be most common two kinds of gimmicks.
It is pulled with finger grip gimmick using typical surgical hand-held apparatus 10 as Fig. 1 and Fig. 2 illustrate operative doctor
The grip state of organ or grasping tissue：The third finger of a certain hand of operative doctor passes through the preceding finger loop 111, middle finger patch
115 position of unlock trigger in the upside of preceding finger loop 111, medial surface of little finger press on the support arm 112；Its thumb
Refer to makes the rear handle 102 be rotated back and forth around the arm pivot post 103 across the thumb circle 120 movement thumb, and by institute
State bar portion 105 will it is described after the movement of handle 102 be converted into the movement of the distal end working head 106.
It is pulled with palm grip gimmick using typical surgical hand-held apparatus 10 as Fig. 1 and Fig. 3 illustrate operative doctor
The grip state of organ or grasping tissue：The palm of a certain hand of operative doctor is adjacent to the side of the handle 11, and thumb is pressed
It stops handle 11 rear handle 102 is clamped in palm by side, forms a U-shaped clamping, little finger of toe presses before described
On the support arm 112 of handle 101, the third finger passes through the preceding finger loop 110, middle finger to be attached to the preceding finger loop 110
115 position of unlock trigger of upside, movement make the front handlebar 101 be rotated back and forth around the arm pivot post 103, and by described
The movement of handle 102 is converted into the movement of the distal end working head after bar portion 105 will be described.
In clinical application, the finger gripping is enforced the law of equal importance with palm grip method, and usually requires frequent switching.
Such as when needing to carry out tissue stripping and appear blood vessel in clinical operation, one hand of operating doctor holds ultrasound knife or elastic separating plier is small
The heart it is thriving carry out tissue stripping, another hand generally has to hold nipper operation organ or tissue, forms synergistic effect, side
Tissue strip operation can accurately be completed.When operative site does not appear fully, or carry out tissue stripping position it is short
When variation spatial extent in time is larger, operative doctor generally use finger gripping enforces the law to operate instrument, and needs lock machine
Structure is set as invalid state.Those skilled in the art is to be understood that be enforced the law and latch mechanism invalid state using finger gripping
When, operation instrument is the most flexible, therefore can quickly open and close instrument to capture, and clamp draws organ or tissue, flexibly
Mobile organ or tissue, so as to matching tissue stripping nimbly and freely.However it is enforced the law using finger gripping and there is no secondary locking
When, the finger of operative doctor is quite tired.It is not moved when the position short time that operative site fully appears or carry out tissue stripping
When, operative doctor is it is generally desirable to quickly be switched to lock function effective status, by the coupling mechanism force clamp tightly of instrument itself
Organ or tissue pulls or stirs the organ or tissue of block vision.Under lock function effective status, instrument progress is not operated usually
Multiple quick opening and closing movement.When the organ or tissue of crawl or drawing is larger or heavier, operative doctor or assistant are logical
It often is switched to palm grip method, because palm grip method tends to force and the freer diastole of posture, facilitates and is grasped energetically
Make or can lessen fatigue.
Latch mechanism effective status and the invalid state switching of the surgical instrument 10 of the prior art described in Fig. 1 are inconvenient, especially
The extremely difficult switching for carrying out effective status and invalid state when being using palm grip method.Further, since middle finger is exerted oneself, position is just
It is 115 position of unlock trigger of the upside of preceding finger loop 111, when operating instrument progress organ crawl, if middle finger is slightly exerted oneself, holds
Easily cause middle finger keeps handle 11 in the unlocked state by trigger squeeze 115, that is, is easy to cause latch mechanism false triggering unlock.
A kind of surgical instrument 20 of the embodiment of the present invention is illustrated in detail in Fig. 4-9, including distal end working head 23, proximal end scissors
Type handle 21 and the lengthening bar portion 22 extended therebetween；The handle 21 includes front handlebar 206, rear handle 202 and connects its
Arm pivot post 261, and the front handlebar 206 and rear handle 202 can rotate relative to the arm pivot post 261；It is described
Front handlebar 206 and rear handle 202 are flexibly connected by arm pivot post 261 with 206 integrated injection molding of front handlebar and by shaft hole 222.
The arm pivot post 261 may be set to be independent part for being flexibly connected front handlebar 206 and rear handle 202.The lengthening
Bar portion 22 includes runner 214, outer bar portion 213 and draw-in bar 215, and the outer bar portion 213 and runner 214 are fixed together and install
In front handlebar 206,215 one end of the draw-in bar is connect with the driving mechanism 211 and its other end is connect with rear handle 202
And it is fixed in 202 mounting hole 221 of rear handle by fixing axle 218.
The working head 23 includes a pair of of binding clip 210 and the driving mechanism that is attached thereto, and the driving mechanism includes the
One link block 217, the second link block 216, sliding block 212, actuating arm 211 and pin 219.First link block 217, the
Two link blocks 216 respectively with the connection symmetrical above and below of a pair of of binding clip 210 and be fitted into together in actuating arm 211 with sliding block 212 and use pin
219 fix.215 distal end of draw-in bar is connect with sliding block 212, drives the movement band movable slider 212 of the draw-in bar 215 to move, with cunning
First link block 217 that block 212 is connected, the second link block 216 drive a pair of of binding clip 210 to realize opening and closing.This field
Technical staff it is readily conceivable that other link mechanisms for having disclosed, slide way mechanism or simple adaptation is done based on the prior art
Property modification, may be used to substitute the invention working head 23 and realize same or analogous function.20 basis of hand-held apparatus
The working head 23 configures difference, can be divided into the operating scissors with scissors head, the nipper with serration friction clamp head, band curved forceps
The hoe scaler etc. on head.With the development of surgery hand-held apparatus, in order to coordinate different operation needs, occur more and more not
The working head of same type is within the scope of the invention, and is no longer enumerated one by one herein.
In a kind of case study on implementation, the front handlebar 206 includes preceding finger loop 262, it is described after handle 202 include thumb circle
224.It operates the front handlebar 206 and rear handle 202 rotates relative to the arm pivot post 261 and is converted into draw-in bar
215 linear motion, and make driving mechanism 211 that binding clip 210 be driven to realize and be closed or unclamp.The handle 21 also includes latch mechanism
24, the latch mechanism 24 includes effective model and invalid mode.Under invalid mode, the front handlebar 206 and rear handle 202 can
It rotates relative to the arm pivot post 261 and realizes the opening and closing of working head 23；Under effective model, described preceding
Hand 206 and rear handle 202 can rotate relative to the arm pivot post 261, and handle 202 is towards front handlebar 206 after permission
Close up and handle 202 is opened away from front handlebar 206 after limiting, as lock function；It is rotated when applying outer power drive trigger shaft,
Handle 202 is opened away from front handlebar after permission, as unlocking function.
Those skilled in the art is to be understood that in laparoscopic surgery, due to the limitation of operative space, operative doctor
It is frequently necessary to for a long time with difficult gesture operation instrument, doctor is easy fatigue, or even induces arthritis, scapulohumeral periarthritis equivalent risk.
Therefore meet ergonomics or the laparoscope hand-held apparatus for mankind's Ergonomy (Ergonomics), can support a variety of grippings
Gimmick reduces extreme operation posture and the sense that lessens fatigue, is even more important.It is published about the relevant mankind's work(of laparoscopic surgery
It is many to imitate the correlative study learned：Representational research includes being published in Journal of Healthcare Engineering
No. 4 the 587-603 pages of volume 3 of a review of the ergonomic issues in the in 2012
Laparoscopic operating rom detail mankind's Ergonomy harm of laparoscopic surgical instruments, other more parts of documents
In also refer to the both effectiveness defect of the mankind and its harm of hysteroscope instrument, but do not provide solution.It is published in Journal
2001 years of of laparoendoscopic＆ advanced surgical techniques volume 11 the 1st
Technical report,new ergonomic design criteria for handles of laparoscopic
Some human efficiency subject's evaluation measures are listed in dissection forceps, however its evaluation measures is confined to be based on human body
Surveying counts the decreased food size obtained, finger loop size design suggestion, and rough giving and evaluates existing handle
The method that difference holds experience, however do not provide for the relevant design recommendation of functional performance or hint.
Ergonomics is an extremely complex subject, according to international ergonomics association (IEA) definition,
Ergonomics be one " anatomy, physiology and the psychology of research people in certain working environment etc. it is various because
Element；Study the interaction of people and machine and environment；Research people is at work, how family life neutralization unified consider when having a holiday
Working efficiency, the health of people, safety and it is comfortable the problems such as subject.However up to the present, few in disclosed patented technology
It is disclosed about laparoscope hand-held apparatus ergonomic applications case or correlative study.The present invention is former using ergonomics
Reason, the experiment using interdisciplinary studies such as anthropometry, biomethanics, time and work sutdies and statistical research, it is proposed that
A kind of laparoscope hand-held apparatus meeting ergonomics and its design method, application method.
Briefly, surgical instrument 20 is substantially carried out subregion by the present invention as shown in Figure 5：After definition arm pivot post 261 arrives
224 center position length of thumb circle of handle 202 be D, lengthen bar portion 22 include first axle 1000, cross arm pivot post 261 with
Second axis 2000 is arranged in 1000 vertical direction of first axle, and the first axle 1000 and second axis 2000 intersect at intersection point
1001, intersection point 1001 is along 1000 proximate direction of first axle and along second axis 2000 by intersection point to handle rotor shaft direction
The square area that length is D is set, by square area along 1000 liang of deciles (D/2) of first axle, along second axis 2000
Trisection (D/3) is set as the regions A1, the regions A2, the regions A3 and the regions B1, the regions B2, the regions B3.It needs further
It points out, aforementioned " 224 center position length of thumb circle of arm pivot post 261 to rear handle 202 is D ", the concrete numerical value of D is not
Definite value, numerical value change in a smaller section.Experimental study and system are carried out based on anthropometry and biomechanical principle
It is 60≤D≤70 (unit that meter, which obtains optimal D values section,：Millimeter).
The hand-type of different crowd and different gripping gimmicks in order to balance in a kind of optional scheme, are arranged in the regions A1
Control effective model and when invalid mode switching state the first button 237, setting trigger 205 in the regions A2, A3 sets in region
Middle finger pressing area is set, while runner 214 is set in the regions B1.In another preferred technical solution, first button
237 settings are arranged in the regions A1 in the 21 corresponding regions A1 of handle, the second button 237a along second axis 2000 and described first
The positions symmetric position A1-1 for the plane that axis 1000 is formed, operating the first button 237 or the second button 237a can control
Handle 21 realizes the switching of effective model and invalid mode.
The operation principle of button, trigger and roller position design is described more particularly below.Such as Fig. 6-8, when using finger gripping
When holding gimmick, by taking the operation of the right hand of operative doctor as an example, the third finger passes through the preceding finger loop 262, middle finger to be attached to preceding finger
The regions A3 of the upside of circle 262, index finger can flexibly control the regions A1, the regions A2 or the regions B1.The index finger is in the areas A1
Mainly play the role of, along proximate, or the first button of promotion 237 of distal end proximally, primarily serving in the regions A2 in domain
Pressing control trigger 205, the effect for the rotating wheel 214 that fiddles with along 214 direction of rotation of runner is primarily served in the regions B1.
When further, using finger grip gimmick, index finger reaches the regions B1 and is substantially at straight configuration.In stretching
The index finger of state does push action or does front and back pushing action along 1000 direction of first axle, it has not been convenient to exert a force in the regions B1
It has an effect, therefore status button should not be set.Index finger comfortably can do rotary dial fortune in the regions B1 along 214 direction of rotation of runner
It is dynamic.For index finger at the regions A1 and the regions A2, finger is in flexuosity, it is possible to comfortably be pressed or be pushed and is dynamic
Make.By the setting of the first button 237 in the regions A1, and trigger 205 is arranged in the regions A2, and runner 214 is arranged in the regions B1,
This set make index finger can easily stir with rotating wheel 214, while the first button 237 can easily be pushed to realize effectively
The switching of pattern and invalid mode, while easily can press or pull trigger 205 and realize cutting for lock-out state and unlocked state
It changes.Those skilled in the art is to be understood that surgical field especially endoscope-assistant surgery field, the index finger of operative doctor
Commonly known as index finger, selection of the index finger usually not as output operating force operation handle, index finger is commonly used to control
Instrument direction processed or switching state button etc..Aforementioned various states, the switching or operation of function are quite frequent, and in abdomen
In endoscope-assistant surgery, since the eyes of operative doctor usually want the monitor in close concern front horizontal direction, and have no time to bow
Oneself manipulation hand or patient region are observed, therefore the switching manipulation convenience of this various states is extremely important.
As shown in figure 9, when the right hand of operative doctor is enforced the law by finger gripping and switches to palm grip gimmick, surgical operation doctor
Raw palm is adjacent to the side of the scissorstype handle 21, thumb pin scissorstype handle 21 to side by rear handle 202
It is clamped in palm, forms a U-shaped clamping.At this point, its index finger still can easily stir with rotating wheel 214, together
When easily can press or pull trigger 205 realize lock-out state and unlocked state switching；At this time since the clamping of palm hinders
Gear, index finger can not operate the first button 237 of switching state in the regions A1, however the thumb of operative doctor just presses at this time
The regions A1-1, therefore can easily push the switching of the second button 237a realization effective model and invalid mode.
In currently preferred technical solution, first button, 237 and second button 237a is relative to along the second axis
The plane that line 2000 and the first axle 1000 are formed it is substantially symmetric, those skilled in the art it will be easily understood that this
Kind symmetric relation makes doctor with left-hand finger clinch or palm grip method operation instrument 20, and the present invention is used with the right hand
Surgical instrument 20 operation it is substantially equivalent, therefore repeat no more.
In conclusion the position relationship setting of the first button of the present invention, the second button, trigger and runner, it can be same
When meeting the right hand (left hand) finger grip gimmick index finger be conveniently accomplished runner rotation, effective model and invalid mode switching,
Lock-out state and unlocked state switching.Index finger is conveniently accomplished runner when can also meet the right hand (left hand) palm grip gimmick simultaneously
Rotation, lock-out state and unlocked state switching, thumb complete the switching of effective model and invalid mode.Moreover, this position is closed
The setting of system, can also meet simultaneously finger gripping enforce the law and finger gripping enforce the law between facilitate switching.Advantage can be simple
That summarizes is described as：The touch feedback of operative doctor can only be relied on, convenient and efficient progress finger gripping is enforced the law to be become with palm grip method
It changes, conveniently operates runner rotation, effective model and invalid mode switching, lock-out state and unlocked state switching.
Studies have shown that up to the present, there are no patented technology or document disclose laparoscopic instrument of the present invention and
Its design method, application method.Also without any enterprise, group or personal disclosure, or production, or sale abdomen of the present invention
Hysteroscope instrument.It is disclosed in the prior art, common laparoscopic surgical instruments by its latch mechanism state switching push button setting exist
The regions B1 (such as structure of U.S. patent Nos US5626608 disclosures), the mass production similar with this patented technology, and make
Laparoscopic surgical instruments (such as with laparoscope grasping forceps series of Auto Suture brands sale), latch mechanism state is pressed
Button setting is enforced the law when operating this kind of instrument using finger gripping in the regions B1, the comfort of effective model and invalid mode switching
It is not good enough, and be inconvenient to support the effective model under palm grip gimmick and invalid mode switching.Another common laparoscope
Surgical instrument be locked/unlock trigger and be arranged in the regions B2 and only include two states of lock-out state and invalid state (such as
The structure that U.S. patent Nos US6117158 is disclosed), the mass production similar with this patented technology and the laparoscope hand used
Art instrument (such as with ENDOPATH brands sale laparoscope grasping forceps series), be locked/unblock button be arranged in the areas B2
Domain, is enforced the law using finger gripping or when palm grip method operates be inconvenient to carry out the correlation of lock function and switches.It is another common
Laparoscopic surgical instruments will lock the setting of locking/unlocking trigger and be arranged in the areas A2 in the regions A3 and by invalidating mode switch button
Domain (such as U.S. patent Nos US8551077, the structure that American invention application US20060004406 is disclosed), with this patent skill
The similar mass production of art, and laparoscopic surgical instruments (such as the laparoscope grasping forceps sold with CLICKline brands that use
Series), it is arranged in the regions A2 by the setting of lock locking/unlocking trigger in the regions A3 and by invalidating mode switch button.It is this to set
Meter need to usually carry out lock locking/unlocking switching with middle finger operating trigger, invalidating mould is carried out with middle finger or index finger operation button
Formula switches, and operates and switches uncomfortable.It is important to note that trigger is arranged may cause inconvenience in the regions A3.
Most common problem includes mainly, and when the instrument is in the lock state, operative doctor either finger gripping is enforced the law or palm
Clinch, when operation instrument (nipper) clamps organ or tissue and pulls mobile, middle finger is almost required for for assisting force, this
Trigger is easily touched under kind state, leads to false triggering so that instrument is unexpectedly switched to unlocked state from lock-out state, leads to device
Official or tissue slip, and cause Clinical practice inconvenient, or even induce malpractice.
Figure 10-22 depicts a kind of embodiment of surgical instrument 20 in more detail.The surgical instrument 20 includes latch mechanism
24, Figure 10-18 depict the Nomenclature Composition and Structure of Complexes of latch mechanism 24.As shown in Figure 10 and Figure 17, the latch mechanism 24 includes trigger
205, locking plate 208, the anodontia cantilever 226 being linked together with rear handle 202.The anodontia cantilever 226 include from rear handle 202 to
The anodontia cantilever 223 of outer protrusion and anodontia cantilever distal end 227.The anodontia cantilever 223 is set as arcuate structure, including
The shape of cantilever inner wall 229 and cantilever outer wall 228, the cantilever inner wall 229 and cantilever outer wall 228 is substantially connected from handle 202
Place is that the center of circle extends the anodontia cantilever 223 into composition isocentric circular arc along arm pivot post 261.223 material of anodontia cantilever
Material includes the plastic material that integrated injection molding is carried out with rear handle 202, can also be that other semi-rigid or rigid materials are even soft
Property material is made.The latch mechanism 24 also includes button assembly 25 and elastic element 250, the trigger 205, elastic element 250
It is installed along in the front handlebar 206 with button assembly 25.The elastic element 250 drives trigger 205 to carry out after pressing
It realizes and resets.The trigger 205 controls locking plate 208 and realizes locking and unlock with the cooperation of anodontia cantilever 226.In the prior art usually
Using lock strap with teeth, the lock tooth of the lock strap is easy to expose outside handle, is likely to result in operative doctor finger or gloves scratch.Together
When lock strap with teeth when in use, lock tooth density degree determine it is each lock tooth spacing, and then determine surgical instrument work
The degree of head grip tissue organ.It should be appreciated by those skilled in the art that in drawing operation energetically, in order to keep continuing folder
Tight drawing, if dynamics is inadequate, hold mode when can not achieve drawing energetically is susceptible to histoorgan landing, influences to perform the operation
Process, or even cause operative failure；If on the other hand working head excessively clamps, and may cause the damage of histoorgan,
It is unfavorable for patient's recovery.The lock strap is although working head clamping degree can be adjusted by encryption lock tooth, due to lock
Tooth is too small may to make latch mechanism unreliable, cause latch mechanism failure mode, and keeps certain lock space width that may cause to want
Clamping force is inadequate or clamping force is excessive.The anodontia cantilever 223 of the present invention coordinates with locking plate 208, and arbitrary position may be implemented
The locking set meets the clamping requirement that chucking power conforms exactly to different operations and different tissues organ site, realizes electrodeless variation,
Surgical instrument 20 is set to keep suitable chucking power position and clamping force.
As shown in figs. 10-12, the button assembly 25 includes button sliding block 203 and the first button 237 and the second button
237a.The button block 203 includes the slide body 230 with limiting slot 231, and the slide body 230 includes slider side wall 234
(235) and limited block 233.The slider side wall 234 (235) and limited block 233 limit limiting slot 231 together.It is described
Slider side wall 234 (235) is extended outward coordinates fixed button mounting post with the first button 237 and the second button 237a
232, push the first button 237 or the second button 237a to can be used for driving the button sliding block 203 from distally proximally sliding
Or proximally slided to distal end, and then the trigger 205 is pushed to rotate, realize the switching of effective model and invalid mode.It is described
First button 237 includes the fricting strip 238 with cambered surface, can facilitate finger force.
As shown in figure 13, the trigger 205 includes trigger shaft hole 258 and connect trigger shaft with front handlebar 206
269, the first cam surface 251, the second cam surface 255 and finger buckle 259.The trigger 205 includes the trigger for being substantially in crescent shape
Body 254, the setting of the first cam surface 251 is in 254 side of trigger body, and finger buckle 259 is arranged in 254 other side of trigger body.
The trigger body 254 is used for elastic elements 250 close to first cam surface, 251 position providing holes 257.The trigger turns
Axis hole 258 is arranged through the trigger body 254 between the first cam surface 251 and finger buckle 259.First cam surface 251
Including cam curve section 253 and cam planarea 252.When promoting button component 25 is proximally mobile to distal end, the button
The limited block 233 of component 25 contacts match respectively with the cam curve section 253 of the first cam surface 251 and cam planarea 252
It closes, and then the rotation of trigger 205 is pushed to realize that effective model switches to invalid mode.Second cam surface 255 is along the trigger
The side of body 254 extends outwardly, second cam surface 255 with locking plate 208 described in 205 rotation forces of the trigger with
The anodontia cantilever 226 realizes locking and unlock.
As shown in figure 14, the locking plate 208 includes the lockhole 284 to match with 226 shape of anodontia cantilever and size,
The anodontia cantilever 226 penetrates the lockhole 284.The locking plate 208 includes the first sheet body 281, the second sheet body 283, Yi Jilian
The changeover portion 282 of the two, first sheet body 281, the second sheet body 283 and set of transitions are connect into the locking plate for being substantially in " Z " font
208.The proximal end face setting locking plate spring 204 of second sheet body 283.Second sheet body 283 can pass through with locking plate spring 204
The modes such as welding, or movable axis limit connect.The lockhole 284 of first sheet body 281 includes the first lockhole wall 285 and second
Outside lockhole wall 286, the first lockhole wall 285 and the cantilever inner wall 229 and cantilever of the second lockhole wall 286 and anodontia cantilever 226
Wall 228 is substantially matching, and the distance between the first lockhole wall 285 and the second lockhole wall 286 are more than outside cantilever inner wall 229 and cantilever
The distance between wall 228.208 material of the locking plate includes rigid material, and such as metal material, thermoset plastic material can also
It is made including semi-rigid type.When trigger 205 the second cam surface 255 can selectivity with the contact of the locking plate 208, apply
Finger buckle 259 described in outer power drive is so that the trigger 205 is rotated around trigger shaft 269, and the second cam surface 255 drives institute
State locking plate 208 movement, be allowed to 226 clearance fit of anodontia cantilever, after permission handle 206 away from front handlebar 202 opening；One kind can
The mode of choosing, when first sheet body 281 is substantially vertical with the anodontia cantilever 226, in the first lockhole wall 285 and cantilever
229 clearance fit of wall, the second lockhole wall 286 and 228 clearance fit of cantilever outer wall, the anodontia cantilever 226 is around arm pivot post
261 rotations, the anodontia cantilever 226 be free to pass through from the lockhole 284, and corresponding at this time is unlocked state or nothing
Effect pattern.When first sheet body 281 and anodontia 226 inclination contact of cantilever, the locking plate spring 204 drives the lock
Piece 208 is allowed to be pressed into contact with cantilever inner wall 229 with 226 tight fit of anodontia cantilever, the first lockhole wall 285, the second lockhole
Wall 286 is pressed into contact with cantilever outer wall 228, and the anodontia cantilever 226 is rotated around arm pivot post 261,202 direction of handle after permission
Front handlebar 206 closes up and handle 202 is opened away from front handlebar 206 after limiting, and is at this time lock function.
The front handlebar 206 that latch mechanism 24 is fixed in installation is depicted as shown in Fig. 5, Figure 10 and Figure 15-17.The front handlebar
206 further include the front handlebar lid 209 coordinated with it.The front handlebar 206 removes preceding 262 part of finger loop, with front handlebar lid
209 be substantially in symmetrical structure.In the substantially regions A1-1 and the regions A1, the front handlebar lid 209 and front handlebar 206 are respectively symmetrically set
The first sliding groove 297 and second sliding slot 267 are set, the first sliding groove 297 and second sliding slot 267 limit 203 edge of button sliding block
Sliding slot direction is moved back and forth.In the present embodiment, the first sliding groove 297 and second sliding slot 267 are long and narrow sliding slots, described narrow
The direction of long sliding slot is basically parallel to the lengthening bar portion 22, and it should be appreciated by those skilled in the art the first sliding grooves 297
Arc chute is may be set to be with second sliding slot 267.As it was noted above, index finger is at the regions A1 and the regions A2, finger
In flexuosity, it is possible to it is comfortable to carry out pressing or pushing action, and index finger is pushed in experience using arc not as good as straight
The promotion in line direction is comfortable.Therefore it is not so good as using the linear type for being roughly parallel to bar portion direction using the operating experience of arc chute
Long and narrow sliding slot.The first sliding groove 297 and 267 proximal openings 297a (267a) of second sliding slot and distal openings 297b (267b) ruler
It is very little can be identical, a kind of preferred technical solution, the proximal openings size 297a (267a) be more than distal openings size 297b
(267b) can further promote operating experience in sliding using this mode, be given when effective model and invalid mode are converted
Operative doctor significantly prompts.
In the substantially regions A1-1 and the regions A1, the front handlebar 206 turns comprising arm pivot post 261 and trigger fixed thereto
Axis 269, the arm pivot post 261 and trigger shaft 269 could be provided as independent part and fixed with the installation of front handlebar 206, also may be used
It is molded into a part with front handlebar 206.The front handlebar lid 209 is set with arm pivot post 261 and 269 corresponding position of trigger shaft
Set fixed column 291 (299).A kind of optional technical solution, the trigger shaft 269 and the trigger shaft hole 269 of trigger 205 are set
It is set to an entirety, trigger 205 includes trigger shaft 269, and the front handlebar lid 209 turns with the setting of 206 corresponding position of front handlebar
Axis hole.In the substantially regions B1 and its symmetrical region, the front handlebar 206 also includes the runner mounting groove 265 of remote location, described
Front handlebar lid 209 includes runner mounting groove 295.The runner mounting groove 265 (295) limits runner and does rotation fortune in slot together
It is dynamic.The front handlebar 206 and front handlebar lid 209 include after accommodating 202 anodontia cantilever 226 of handle by cantilever groove 263
(293), the cantilever groove 263 (293) forms complete cantilever opening, and the cantilever opening size is more than outside anodontia cantilever 226
Shape size, and when anodontia cantilever 226 is rotated around arm pivot post do not contacted with the cantilever groove 263 (293).The front handlebar 206
Further include the cantilever storehouse 266 (296) for avoiding anodontia cantilever 226 with front handlebar lid 209, the cantilever storehouse 266 (296) exists
When surgical instrument 20 is closed up, anodontia cantilever 226, a kind of optional technical solution can be accommodated, the cantilever storehouse 266 (296) exists
The front handlebar 206 and front handlebar lid 209 show as the hollow storehouse outwardly protruded.The front handlebar 206 and front handlebar lid 209 are also
The support slot 264 (294) of lever motion, the rib that the support slot 264 (294) is protruded by both sides are done including limiting locking plate 208
260 (290) limit.The rib 260 (290) of the support slot 264 (294) is when locking plate 208 rotates as rotation
Turn supporting point.The front handlebar 206 and front handlebar lid 209 further include the spring groove 268 (298) for limiting locking plate spring 204,
204 one end of locking plate spring is connect with locking plate 208, and the other end, which is limited in spring groove 268 (298), is in compressive state.
As the careful latch mechanisms 24 that depict of Fig. 5 and Figure 17-20 switch between effective model and invalid mode.Work as finger
Clinch, for the right hand operation of operative doctor, the third finger passes through the preceding finger loop 262, middle finger to be attached to preceding finger loop
The regions A3 of 262 upside, index finger can flexibly control the regions A1, the regions A2 or the regions B1.When surgical instrument 20 needs
When being rapidly performed by closure and opening operation, typically such as at this moment just needed hand when operation on gallbladder carries out blood vessel exfoliation
Art instrument 20 is switched to invalid mode by effective model.The index finger is in the regions A1 by along proximate promoting button component 25
The movement of the first button 237, first button 237 drives button block 203 along the first sliding groove 297 and second sliding slot 267
It is mobile.203 limited block 233 of the button block interacts with first cam surface 251, and the trigger 205 is driven to surround
Trigger shaft 269 rotates clockwise, and in the process, the second cam surface 255 of the trigger 205 is with 205 up time of the trigger
Second sheet body 283 of needle rotation forces locking plate 208 tilts and the lockhole along rotation counterclockwise, the rotation of the first sheet body 281
284 with 226 clearance fit of anodontia cantilever.When limited block 233 is moved to the cam planarea 252 of first cam surface 251
When, the trigger 205 forms self-locking with the button block 203, and the elastic element 250 cannot reset.At this time latch mechanism 24 by
Effective model is switched to invalid mode, and it should be appreciated by those skilled in the art under invalid mode, due to the lockhole 284
It is in clearance fit state always with 226 clearance fit of anodontia cantilever, so the front handlebar 206 and rear handle 202 of handle 21 can
Easily to be closed up and be opened, meet the needs for the tissue removed and sheared when finger gripping is enforced the law.And when operation
Doctor is carried out pulling organ or tissue energetically and when realizing occlusion using the right hand by finger gripping switching palm grip gimmick of enforcing the law, this
When just need surgical instrument 20 being switched to effective model by invalid mode.The palm of surgeon is adjacent to the scissors-type
The side of handle 21, thumb pin scissorstype handle 21 rear handle 202 is clamped in palm to side, form a U
The clamping of type.Since the clamping of palm stops that index finger is unable to control the first button 237 of switching state in the regions A1, and at this time
Just thumb press is in the regions A1-1, it is possible to carry out the second button 237a of convenient promotion distally proximally by thumb
Push movement, the second button 237a that button block 203 is driven to be moved along the first sliding groove 297 and second sliding slot 267.Institute
It states 203 limited block 233 of button block to interact with first cam surface 251, the trigger 205 is driven to surround trigger shaft
269 rotations counterclockwise, in the process, the trigger 205 does resetting movement under the action of elastic element 250, and described second
With the trigger 205, rotation drives the second sheet body 283 and drives 281 edge of the first sheet body of the locking plate cam surface 255 counterclockwise
Reset, first sheet body 281 and 226 inclination contact of anodontia cantilever are rotated clockwise, the locking plate spring 204 drives institute
It states locking plate 208 to be allowed to be pressed into contact with cantilever inner wall 229 with 226 tight fit of anodontia cantilever, the first lockhole wall 285, second
Lockhole wall 286 is pressed into contact with cantilever outer wall 228, and the anodontia cantilever 226 is rotated around arm pivot post 261, handle after permission
202 close up and handle 202 is opened away from front handlebar 206 after limiting towards front handlebar 206.At this point, operative doctor can pass through
The locking plate 208 is allowed to realize 23 snap-lock of working head with the pressing friction of anodontia cantilever 226, avoids being clamped for a long time
Firmly cause the fatigue of palm.It should be appreciated by those skilled in the art, between above-mentioned effective model and invalid mode mutually into
Row switching, either enforces the law using finger gripping or when palm grip gimmick, can one hand freely operate.
In addition, the operative doctor when lefthanded is completed mutually to switch between above-mentioned effective model and invalid mode
When operation, whole operation process is similar, difference mainly the right hand carry out finger gripping enforce the law when, what index finger was stirred be first by
Button 237, when using palm grip gimmick, that thumb is stirred is the second button 237a；And left hand carries out finger gripping when enforcing the law, index finger
That stir is the second button 237a, and when using palm grip gimmick, what thumb was stirred is the first button 237.The technology of this field
On the one hand personnel may be used it should be understood that by the way that the first button 237 and the second button 237a is arranged in the regions A1 of handle 21 and A1-1
So that operative doctor is in different surgical environments, for example, need the strip operation for being rapidly performed by closure and opening or it is long when
Between drawing organ operation etc., can easily carry out mutually switching between effective model and invalid mode using the same hand,
Do not need an other hand carry out cooperation or other people carry out cooperation complete operation；On the other hand either right-handed is also met
Or the operative doctor that is operated of lefthanded can a hand realize the mutual switching of effective model and invalid mode.
As Fig. 5, Figure 14 and Figure 19-22 it is careful depict latch mechanism 24 under effective model, lock function and unlock work(
Switching between energy.The first button 237 or the second button 237a for first confiring that handle 21 are in proximal location, i.e. surgical instrument
20 under effective model.As shown in figs. 17-18, it when needing to carry out pulling organ energetically for a long time, is used with operative doctor
It is sketched for palm grip gimmick.The palm of surgeon is adjacent to the side of the scissorstype handle 21, thumb
Scissorstype handle 21 rear handle 202 is clamped in palm to side is pinned, a U-shaped clamping is formed, rear handle 202 is made
For fixed handle, little finger of toe presses on the support arm 264 of the front handlebar 206, and the third finger passes through the preceding finger loop 262,
Its middle finger is attached to the upper side position of the preceding finger loop 262, and by middle finger, nameless and little finger of toe is exerted oneself together, drives front handlebar
Closing up for handle 21 is realized in 206 rotations, and then realizes working head 23 and be closed and be clamped.In the process, front handlebar 206 is by remote
Clockwise rotary motion is proximally done at end, and the rear handle 202 does rotary motion counterclockwise, institute relative to front handlebar 206
It states anodontia cantilever 226 to rotate around arm pivot post 261, first sheet body 281 does counterclockwise movement, the second sheet body 283 by promotion
Push compression locking plate spring 204, the first lockhole wall 285 is contacted with cantilever inner wall 229 at this time, the second lockhole wall 286 with hang
Arm outer wall 228 contacts, but handle 202 closes up towards front handlebar 206 after not influencing.
Once stopping closing movement, since 204 compressed reaction force of the locking plate spring drives the locking plate 208 to make
With 226 tight fit of anodontia cantilever, first sheet body 281 and 226 inclination contact of anodontia cantilever, the first lockhole wall
285 are pressed into contact with cantilever inner wall 229, and the second lockhole wall 286 is pressed into contact with cantilever outer wall 228, and handle 202 deviates from after limitation
Front handlebar 206 opens.At this point, operative doctor can be allowed to the pressing friction with anodontia cantilever 226 by the locking plate 208
It realizes 23 snap-lock of working head, avoids that the fatigue for firmly causing palm is clamped for a long time.
As shown in Figure 10 and Figure 19-22, when needing to unlock operation, by operative doctor using for palm grip gimmick
It is sketched.The palm of surgeon is adjacent to the side of the scissorstype handle 21, and thumb pins scissorstype handle 21
Rear handle 202 is clamped in palm by side, formed a U-shaped clamping, rear handle 202 be used as fixed handle, little finger of toe
Pressing on the support arm 264 of the front handlebar 206, the third finger pass through the preceding finger loop 262, middle finger be attached to it is described before
The upper side position of finger loop 262 applies finger buckle 259 described in outer power drive by index finger pressing first and rotates clockwise, drives
Second cam surface 255 is rotated with the trigger 205, and the second cam surface 255 of the trigger 205 is suitable with the trigger 205
Second sheet body 283 of hour hands rotation forces locking plate 208 tilts and the lock along rotation counterclockwise, the rotation of the first sheet body 281
Hole 284 and 226 clearance fit of anodontia cantilever.Second sheet body 283 pushes compression locking plate spring 204, at this time first lock
Hole wall 285 is not contacted with cantilever inner wall 229, and the second lockhole wall 286 is not also contacted with cantilever outer wall 228, and handle 202 is carried on the back after permission
It is opened from front handlebar 206, as unlocking function.In the case where keeping index finger to press 205 state of trigger, the handle 202 is with before
Handle 206 can freely be closed up and opening operation.When index finger unclamps the finger buckle 259, the trigger 205 is in bullet
It automatically resets under the action of property element 250, second cam surface 255 is detached with the second sheet body 283, and the locking plate 208 is being locked
It automatically resets under the rebound effect of flat spring 204, the locking plate 208 is allowed to the compression with anodontia cantilever 226.
It should be appreciated by those skilled in the art the present invention realizes surgical instrument 20 using anodontia cantilever 226 and locking plate 208
Unlocking function and lock function the locking of any position may be implemented during handle 21 closes up, meet chucking power just
The clamping requirement for meeting different operations and different tissues organ site, realizes electrodeless variation, and the drawback for overcoming lock strap with teeth makes
Surgical instrument 20 can keep suitable chucking power position and clamping force.
If Figure 23-25 depicts another embodiment, surgical instrument 30 is roughly the same with surgical instrument 20, primarily directed to
Anodontia cantilever 226 and locking plate 208 of the latch mechanism 24 for locking are replaced, and are coordinated using cantilever 326 with teeth and trigger 305
Realize lock function and unlocking function.
The surgical instrument 30 include comprising distal end working head 23, proximal end scissorstype handle 31 and extend therebetween plus
Long bar portion 22；The handle 31 includes front handlebar 206, rear handle 202 and the arm pivot post 261 for connecting it, and the front handlebar
206 and rear handle 202 can rotate relative to the arm pivot post 261.The handle 31 includes latch mechanism 34, the lock
Mechanism 34 and latch mechanism 24 all include effective model and invalid mode, and the two switching mode is substantially equivalent, is not repeated herein.Institute
It includes realizing locking from cantilever 326 made of the extension of rear handle 202 and the cooperation of trigger 305 to state latch mechanism 34.The cantilever 326 wraps
Containing multiple first lock teeth 325, and the trigger 305 includes the second lock tooth 342 to match with the sawtooth；When the lock machine
When structure 34 is effective model, the elastic element 350 drives the trigger 305 so that the first lock tooth 325 and second locks tooth
342 are mutually twisted, and handle 202 closes up towards front handlebar 206 after permission and handle is opened away from front handlebar after limiting, and as locks
Function；Apply outer power drive finger buckle 259 so that the trigger 305 makes the first lock 325 He of tooth around the rotation of trigger shaft
Second lock tooth 342 is mutually disengaged, and handle is opened away from front handlebar after permission, as unlocking function.
The many different embodiments and example of the present invention are had shown and described.One ordinary skill of this field
Personnel can make adaptive improvement by suitably modified to the method and instrument without departing from the scope of the invention.
Several kinds of amendment schemes are referred, and for those skilled in the art, other amendment schemes are also to be contemplated that.
Therefore the scope of the present invention should be according to accessory claim, while being understood not to be shown and recorded by specification and attached drawing
Structure, the particular content of material or behavior limited.
Claims (8)
1. a kind of surgical instrument, including distal end working head, proximal handle and the lengthening bar portion extended therebetween；The handle packet
Containing front handlebar, rear handle and the arm pivot post for connecting it, and the front handlebar and rear handle can be made relative to the arm pivot post
Rotary motion；The working head includes a pair of of binding clip and the driving mechanism being attached thereto；The lengthening bar portion includes runner, outside
Bar portion and draw-in bar, the outer bar portion and runner are fixed together and are mounted in front handlebar, described draw-in bar one end with it is described
Driving mechanism connects and its other end is connect with rear handle, which is characterized in that
1) handle also includes latch mechanism, and the latch mechanism includes effective model and invalid mode；
2) latch mechanism includes the trigger being mounted in front handlebar, button and elastic element；
3) button and the trigger interact, and the trigger is driven to rotate, and realization latch mechanism is in effective model and in vain
Switch between pattern；
4) button includes the first button and the second button, and first button and the second button are separately mounted to described preceding
Two sides of hand.
2. surgical instrument as described in claim 1, which is characterized in that the button setting meets in the regions front handlebar A1
It is following to require：Left or right hand using finger gripping enforce the law operate the handle when, the index finger of the hand of operation can be stirred easily
One of button；When left or right hand operates the handle using palm grip method, the thumb of the hand of operation can be convenient
Stir one of button.
3. surgical instrument as described in claim 1, which is characterized in that the regions A1 meet the following conditions：
The thumb circle center position length for defining arm pivot post to rear handle is D；
The lengthening bar portion includes first axle, crosses arm pivot post and second axis is arranged with first axle vertical direction；
The first axle and second axis intersect at intersection point, the regions A1 by from intersection point along first axle proximate side
It is formed to D/2 length is extended with the region for extending the restriction of D/3 length by intersection point to handle rotor shaft direction along second axis.
4. surgical instrument as claimed in claim 3, which is characterized in that the front handlebar includes through the long and narrow of two side
Sliding slot, first button and the second button can slide in the long and narrow sliding slot.
5. surgical instrument as claimed in claim 3, which is characterized in that the long and narrow sliding slot is oriented parallel to the extension bar
Portion.
6. surgical instrument as described in claim 1, which is characterized in that the trigger includes trigger shaft, the first cam surface；Institute
It states button to interact with first cam surface, the trigger is driven to be rotated around trigger shaft, realize latch mechanism effective
Switch between pattern and invalid mode.
7. surgical instrument as described in claim 1, which is characterized in that
1) latch mechanism includes the anodontia cantilever being linked together with rear handle；The latch mechanism also includes locking plate, wherein described
Locking plate includes the lockhole to match with the anodontia cantilever shape and size, and the anodontia cantilever penetrates the lockhole, described to pull
Machine further includes the second cam surface and finger buckle；
2) when the latch mechanism is effective model, the elastic element drive the locking plate be allowed to anodontia cantilever tight fit,
Handle closes up towards front handlebar after permission and handle is opened away from front handlebar after limiting, as lock function；Second cam
Face selective can be contacted with the locking plate, applies finger buckle described in outer power drive and the trigger is revolved around trigger shaft
Turn, and the second cam surface drives locking plate movement, be allowed to anodontia cantilever clearance fit, handle is away from front handlebar after permission
It opens, as unlocking function.
8. surgical instrument as described in claim 1, which is characterized in that
1) cantilever includes multiple first locks teeth；The latch mechanism also includes finger buckle and matches with the first lock tooth
Second lock tooth；
2) when the latch mechanism is effective model, the elastic element drives the trigger to be rotated around the trigger shaft,
So that the first lock tooth and the second lock tooth are mutually twisted, after permission handle close up towards front handlebar and before handle deviates from after limiting
Handle opens, as lock function；Applying finger buckle described in outer power drive makes the trigger be rotated around trigger shaft so that
The second lock tooth and the first lock tooth disengage, and handle is opened away from front handlebar after permission, as unlocking function.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116408.8A CN109662740B (en) | 2018-04-02 | 2018-04-02 | Surgical instrument |
| CN201810284395.0A CN108338810B (en) | 2018-04-02 | 2018-04-02 | A kind of surgical instrument |
| PCT/CN2018/089200 WO2019192068A1 (en) | 2018-04-02 | 2018-05-31 | Surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810284395.0A CN108338810B (en) | 2018-04-02 | 2018-04-02 | A kind of surgical instrument |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116408.8A Division CN109662740B (en) | 2018-04-02 | 2018-04-02 | Surgical instrument |
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| Publication Number | Publication Date |
|---|---|
| CN108338810A true CN108338810A (en) | 2018-07-31 |
| CN108338810B CN108338810B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810284395.0A Active CN108338810B (en) | 2018-04-02 | 2018-04-02 | A kind of surgical instrument |
| CN201910116408.8A Active CN109662740B (en) | 2018-04-02 | 2018-04-02 | Surgical instrument |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910116408.8A Active CN109662740B (en) | 2018-04-02 | 2018-04-02 | Surgical instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108236485A (en) * | 2018-04-02 | 2018-07-03 | 成都五义医疗科技有限公司 | A kind of surgical instrument for improving latch mechanism |
| CN113349855A (en) * | 2021-07-12 | 2021-09-07 | 苏州法兰克曼医疗器械有限公司 | Laborsaving anastomat with prevent maloperation function |
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| US9717485B1 (en) * | 2013-10-09 | 2017-08-01 | Daniel Glenn Doerr | Ergonomic multi-functional handle for use with a medical instrument |
| CN103767752B (en) * | 2014-01-03 | 2016-02-03 | 上海逸思医疗科技有限公司 | A kind of surgical instruments of safety one-hand operation |
| US10034683B2 (en) * | 2015-04-16 | 2018-07-31 | Ethicon Llc | Ultrasonic surgical instrument with rigidizing articulation drive members |
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| US5626608A (en) * | 1996-03-29 | 1997-05-06 | United States Surgical Corporation | Surgical instrument having locking handle |
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| US20060004406A1 (en) * | 2004-07-05 | 2006-01-05 | Helmut Wehrstein | Surgical instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108236485A (en) * | 2018-04-02 | 2018-07-03 | 成都五义医疗科技有限公司 | A kind of surgical instrument for improving latch mechanism |
| CN113349855A (en) * | 2021-07-12 | 2021-09-07 | 苏州法兰克曼医疗器械有限公司 | Laborsaving anastomat with prevent maloperation function |
| CN113349855B (en) * | 2021-07-12 | 2022-04-15 | 苏州法兰克曼医疗器械有限公司 | Laborsaving anastomat with prevent maloperation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109662740A (en) | 2019-04-23 |
| CN109662740B (en) | 2021-04-16 |
| CN108338810B (en) | 2019-03-22 |
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