CN108992115A - A kind of modified locking mechanism on surgical instruments - Google Patents
A kind of modified locking mechanism on surgical instruments Download PDFInfo
- Publication number
- CN108992115A CN108992115A CN201811025695.3A CN201811025695A CN108992115A CN 108992115 A CN108992115 A CN 108992115A CN 201811025695 A CN201811025695 A CN 201811025695A CN 108992115 A CN108992115 A CN 108992115A
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- China
- Prior art keywords
- locking
- locking mechanism
- surgical instruments
- end effector
- wedge block
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides the modified locking mechanism on a kind of surgical instruments, the modified locking mechanism on articulated joint on specially a kind of stapler.The present invention improves the joint structure between stapler end effector and elongated shaft, using the locking disk with arc groove and has bevelled locking level cooperation, engaging or CONTACT WITH FRICTION are carried out by the upper lower inner surface of arc groove and the upper outer lower face surface of locking level, to have biggish locking torque, and soft tissue in Conventional locking mechanisms is not had and is easy the technical issues of being damaged by the tooth on joint.
Description
Technical field
Articulated joint the present invention relates to the modified locking mechanism on a kind of surgical instruments, on specially a kind of stapler
On modified locking mechanism.
Background technique
It is known in the prior art, stapler as medically use substitution traditional-handwork suture equipment, user
Just, tight, elastic suitable, especially its suture is quick, easy to operate and few side effects and the advantages that postoperative complication, and also
So that the tumor operation that can not be cut off in the past is able to lesion resection, very by the favor and high praise of domestic and international Clinical Surgery doctor.Outside
Section's stapler such as scope Endo-GIA may include that can be moved or be carried out joint motions relative to elongated shaft assembly
End effector.End effector, which is usually configured to, will need the tissue cut off to be fixed between clamping device, wherein clamping
It generally includes to be configured to the structure with nail bin is accommodated in device.Handle portion for operation is then configured to can control
The closure of clamping device, and control push blade cutting and staple are pushed to be sutured.
But due to the limitation of abdominal cavity or chest cavity space, in surgical procedure, traditional linear cutting anastomat cannot
Enough carry out angular adjustment, cannot effectively reach operative site clamped, be cross-section, anastomosed tissue, so gradually developing
The hysteroscope stapler that stapler actuator can turn, and widely used.
Such as Ethicon Endo Surgery Inc of the U.S. (ETHICON ENDO-SURGERY) is to the patent of its request for product, application
It number is CN200910130759.0, surgical instruments may include axis, end effector and connector, wherein the end effector can be with
It is moved around the connector relative to the axis.It proposes in that patent, referring to attached drawing 1, the joint of pervious end effector is transported
Dynamic connector includes locking component, such as locking component 299, and the locking component 299 may include the outer circumferential direction from locking component
The tooth 298 to extend out outside.Therefore, when making shaft assembly of the end effector relative to surgical instruments carry out joint motions, tooth
298 can tangle or impact the soft tissue of surrounding, and may cause wound.In different situations, tissue capture may be existed
Between adjacent teeth 298, so that soft tissue may be pulled in actuated articulation joints simultaneously when end effector carries out joint motions
And it may be jammed by the relative motion part of connector.In embodiments of the present invention, wherein the tooth of locking component is
Have angled or inclined, soft tissue, which can easily flow out and be reduced from tooth, pulls joint motions for soft tissue
A possibility that in connector.Although reducing the damage of tissue to the improvement of tooth form, but there is a possibility that damage, therefore should
Patent still uses cover structure as protection, and cover may be coupled at least one of the end effector and axis, and
The soft tissue adjacent to connector positioning is dragged into connector and/or by joint-clamping in order to prevent, and cover is configured at least portion
Divide and surrounds connector.
Although the setting of cover solves the technical issues of locking component injury tissue, the presence of cover increases part
Quantity, assembling process is comparatively laborious, and covers on during transluminal operation in the presence of the risk fallen.Therefore, it is necessary to a kind of improvement
The joint structure of type, so that joint motions will not generate damage to tissue in the case where not needing using cover.
Summary of the invention
The present invention provides a kind of surgical operating instrument, specially a kind of stapler with modified joint locking component.
The present invention improves the joint structure between stapler end effector and elongated shaft, is replaced using the method for frictional connection
It is connected for conventionally employed tooth and carries out joint locking, to solve in the operating process of end effector angular adjustment, soft group
It knits and is easy the technical issues of being damaged by the tooth on joint, and the technical effect for more fine-tuning angle can be reached.
The technical scheme of the present invention is realized as follows:
A kind of articulated joint locking mechanism on surgical instruments, the surgical instruments ball and socket joint specially on stapler lock machine
Structure, comprising: end effector, elongated shaft and Handleset；Its end effector one end is defined as distal end, Handleset
One end is defined as proximal end.
End effector may include anvil block and nail bin groupware, and surgical instruments further includes closed system and trigger system, closure
System is configured to generate closed action, and including the close handles in Handleset, close handles can control anvil block opposite
Rotation generates closed action, to clamp tissue, trigger system then includes firing handle, can be made by firing handle operation
Blade be pushed forward in nail bin staple release, to carry out cutting suture to tissue.Closed system and trigger system
Drive connection part is all disposed in elongated shaft, i.e., elongated shaft is as transmission mechanism receiving portion between end effector and Handleset
Point.
Its end effector can be pivotly connected with elongated shaft by articulated joint.Articulated joint is arranged so that
End effector carries out joint motions around book shaft opposite elongate axis, so that operator can carry out end effector
Joint motions are adjusted to suitable angle, to be easy access to the surgical site of patient's body.
In order to enable relatively fixed after adjusting end effector angle, articulated joint is equipped with locking mechanism；Locking
End effector and the opposite locking of elongated shaft are achieved in that locking mechanism includes locking disk and locking level, locking by mechanism
Arc groove is offered in the middle part of disk, locking boom end is wedge block, and wedge block thickness is by being distally proximally gradually increased, arc
The upper and lower surfaces of slot inner surface are consistent with the tilt angle of the upper and lower surfaces of wedge block respectively, thus locking disk
With locking level under the state of being in contact, the inner surface of arc groove and the outer surface of wedge block are fitted closely, such setting
Increase rubbing surface between the two.The corresponding central axis of arc groove is identical with the central axis of locking disk, therefore executes in end
When being locked again after device rotational angle, the inner surface of arc groove and the outer surface fitting area of wedge block are identical.Wedge block
Upper and lower surface angular range is that preferably can be 30 °, 45 ° 60 ° greater than 0 ° and less than 90 °.It is upper that wedge block, which is preferable to provide,
Lower symmetrical structure, preferred angle are that with respect to the horizontal plane angle is 15 ° to upper and lower surface.Another preferred structure is wedge block
Lower surface is parallel to the horizontal plane, and the angle of upper surface and horizontal plane is preferably 15-60 °.
Wedge block minimum thickness, the i.e. thickness of its front end make less than the maximum width (i.e. outermost end width) of arc groove
Wedge block can enter wedge groove, but wedge block minimum thickness is greater than the minimum widith of arc groove again (i.e. most inner side is wide
Degree), it can prevent wedge block from entering so too deep so as to cause the front end of wedge block and the interior contact of arc groove.
It further include unlocking part and returning spring, unlocking part is operably connected on locking level, returning spring construction
At for towards end effector motion locking component, unlocking part can overcome the elastic force of returning spring to drive locking level to separate
The movement of end effector direction.When locking disk and connecting rod are in opposite lock state, returning spring is in compressive state.Herein
Under state, wedge block is arranged with being biased, and the front end of wedge block is not contacted with arc groove most inner side, is accordingly used in resisting bullet
The pressure of spring biasing force both is from the active force between wedge block upper and lower surface and the upper and lower surface of arc-shaped groove inner surface, passes through
The frictional force that the active force generates, so that generating the locking torque of enough locking end portions actuators between locking disk and locking level.
In order to generate enough frictional force, the upper lower inner surface of locking disk and the upper lower inner surface of locking level be can be set to slightly
Rough surface further increases locking torque if necessary, can also the upper surface of wedge block and/or lower surface set salient point and/
Or raised line hinders to relatively rotate, the upper surface and/or lower surface of the inner surface of arc groove set corresponding salient point and/or raised line is matched
It closes, salient point, raised line preferably use elastic material, so that fitting is even closer, the resistance of generation is bigger.
Above technical scheme is used, the invention has the following advantages:
(1) using the bevelled locking level cooperation of the locking disk and tool with arc groove, pass through the Nei Biao up and down of arc groove
The upper outer lower face surface of face and locking level carries out engaging or CONTACT WITH FRICTION, to have biggish locking torque.
(2) instead of traditional tooth connection structure, soft tissue in Conventional locking mechanisms is not had and is easy by the tooth on joint
The technical issues of damage.
Detailed description of the invention
Attached drawing 1 is actuated articulation joints structural schematic diagram in background technique；
Attached drawing 2 is overall appearance schematic diagram of the present invention；
Attached drawing 3 is the structural schematic diagram of articulation locking mechanism of the invention；
Attached drawing 4 is the local screenshot under articulation locking mechanism is in the unlocked state；
Attached drawing 5 is the local screenshot under articulation locking mechanism is in the lock state.
Specific embodiment
Corresponding appended drawing reference indicates corresponding component in the drawings.The present invention shows of the invention in one form
Preferred embodiment, and such embodiment should be construed as limitation of the scope of the invention in no instance.This
Field is it will be appreciated by the skilled person that the device and method be described in detail and be shown in the accompanying drawings herein are non-limiting schematically
Embodiment, and the range of various embodiments of the invention is limited only by claim.A kind of schematic embodiment party
The feature that formula shows and describes can be in conjunction with the feature of other embodiment, it is intended that by such modifications and variations include this
In the range of invention.
A kind of appearance diagram of stapler with articulated joint 1 as shown in Fig. 2, comprising: end effector 2,
Elongated shaft 3 and Handleset 4；
End effector 2 may include anvil block 21 and nail bin groupware 22, and surgical instruments further includes closed system and trigger system,
Closed system is configured to generate closed action, and including the close handles 41 in Handleset 4, close handles 41 are controllable
Anvil block 21, which relatively rotates, generates closed action, to clamp tissue, trigger system then includes firing handle 42, passes through percussion
Handle 42, which operates, may make blade is pushed forward to release with the staple in nail bin, to carry out cutting suture to tissue.Closed system
The drive connection part of system and trigger system is all disposed in elongated shaft 3, i.e., elongated shaft 3 is used as end effector 2 and Handleset 4
Between transmission mechanism accommodating portion.
Its end effector 2 can be pivotly connected with elongated shaft 3 by articulated joint 1.Articulated joint 1 is set as
So that end effector 2 carries out joint motions around book shaft opposite elongate axis 3, so that operator can execute end
Device 1 carries out joint motions and is adjusted to suitable angle, to be easy access to the surgical site of patient's body.
In conjunction with attached drawing 2-3, in order to enable relatively fixed after adjusting 2 angle of end effector, articulated joint 1 is equipped with
Locking mechanism 5；End effector and the opposite locking of elongated shaft are achieved in that locking mechanism includes locking by locking mechanism 5
Disk 6 and locking level 7, locking disk 6 and end effector 1 are relatively fixed, and locking level 7 is located in elongated shaft 3, can be with 3 phase of elongated shaft
To movement, offer arc groove 8 in the middle part of locking disk 6,7 end of locking level is wedge block 9,9 thickness of wedge block from distal end to
Proximal end is gradually increased, the inclination with the upper and lower surfaces of wedge block 9 respectively of the upper and lower surfaces of 8 inner surface of arc groove
Angle is consistent, and thus locking disk 6 and locking level 7 are under the state of being in contact, the inner surface of arc groove 8 and the outer surface of wedge block 9
It fits closely, such setting increases rubbing surface between the two.The corresponding central axis of arc groove 8 and locking disk 6
Central axis is identical, therefore when being locked again after end effector rotational angle, the inner surface of arc groove 8 and wedge block 9
Outer surface fitting area is identical.In this embodiment, wedge block 9 is set as structure symmetrical above and below, and angle is that upper and lower surface is opposite
In horizontal plane angle be 15 °, wherein by the plane definition where the upper surface of locking disk 6 be horizontal plane.
As shown in figure 4, being the cross-sectional view along intermediate symmetry face of locking mechanism in the unlocked state, it can be seen that wedge shape
9 minimum thickness of block, the i.e. thickness of its front end, less than the maximum width (i.e. outermost end width) of arc groove, so that wedge block can
To enter wedge groove,
As shown in figure 5, being the cross-sectional view along intermediate symmetry face of locking mechanism in the locked state, it can be seen that wedge shape
9 minimum thickness of block is greater than the minimum widith (i.e. most inner side width) of arc groove again, can prevent wedge block 9 from entering so too deep
So as to cause the front end of wedge block 9 and the interior contact of arc groove 8, so that active force suffered by wedge block 9 is upper and lower two
Side surface, therefore both side surface can produce enough frictional force up and down, to provide enough locking torque.
It referring to figure 2-3, further include unlocking part 10 and returning spring (not shown), the specific implementation side of reset spring
Formula can refer to the existing patented technology referred in background technique.Unlocking part 10 is operably connected to 7 on locking level, replys bullet
Spring is configured to for towards 2 motion locking component of end effector, unlocking part 10 can to overcome the elastic force of returning spring to drive lock
Fixed pole 7 is moved to far from 2 direction of end effector.When locking disk 6 and connecting rod 7 are in opposite lock state, at returning spring
In compressive state.In this case, wedge block 7 is arranged with being biased, and the front end of wedge block 9 does not connect with arc groove most inner side
Touching, the pressure for being accordingly used in resisting spring bias both are from the upper following table of 8 inner surface of 9 upper and lower surface of wedge block and arc groove
Active force between face, the frictional force generated by the active force, so that generating locking enough between locking disk 6 and locking level 7
The locking torque of end effector 2.
In order to generate enough frictional force, the upper lower inner surface of locking disk 6 and the upper lower inner surface of locking level 7 be can be set to
Rough surface, locks torque in order to further increase, in the present embodiment, is respectively equipped in the upper and lower surface of wedge block 9 longitudinal flat
The raised line of row setting, sets corresponding parallel raised line in the upper and lower surface of 6 inner surface of arc groove, to increase locking disk 6 and lock
Locking torque between fixed pole 7.
As described above, we are illustrated fully according to spirit of the invention, but the present invention is not limited to above-mentioned reality
Apply example and implementation method.The practitioner of correlative technology field can carry out different in the range of technical idea of the invention is permitted
Variation and implementation.
Claims (8)
1. the modified locking mechanism on a kind of surgical instruments, comprising: end effector, elongated shaft and Handleset；
Articulated joint is connected between the end effector and the elongated shaft, the end effector is connect by the joint
Head is pivoted relative to the elongated shaft；
The articulated joint is equipped with locking mechanism, and the locking mechanism is used for the end effector and the elongated shaft phase
To locking；The locking mechanism includes locking disk and locking level, and the locking disk and end effector are relatively fixed, the locking
Bar is located in the elongated shaft, can be with the elongated shaft relative motion；
It is characterized in that, offering arc groove in the middle part of the locking disk, the locking boom end is wedge block, and the wedge block is thick
Spend size by being distally proximally gradually increased, the upper and lower surfaces of the arc-shaped groove inner surface respectively with the upper table of wedge block
Face is consistent with the tilt angle of lower surface.
2. the modified locking mechanism on a kind of surgical instruments according to claim 1, which is characterized in that the wedge block
Minimum thickness is less than the maximum width of arc groove and is greater than the minimum widith of the arc groove.
3. the modified locking mechanism on a kind of surgical instruments according to claim 2, which is characterized in that further include unlock
Component and returning spring, the unlocking part are operably connected on locking level, the returning spring be configured to for towards
End effector moves the locking component, and the unlocking part can overcome the elastic force of returning spring to drive locking level to far from end
The movement of portion actuator direction.
4. the modified locking mechanism on a kind of surgical instruments according to claim 3, which is characterized in that the locking disk
When being in opposite lock state with the connecting rod, returning spring is in compressive state.
5. the modified locking mechanism on a kind of surgical instruments according to claim 1, which is characterized in that the wedge block
Upper and lower surface angular range be greater than 0 ° and less than 90 °.
6. the modified locking mechanism described in -5 any one on a kind of surgical instruments according to claim 1, which is characterized in that
The upper surface and/or lower surface of the wedge block have multiple salient points and/or raised line.
7. the modified locking mechanism on a kind of surgical instruments according to claim 6, which is characterized in that table in the arc groove
The upper surface and/or lower surface in face have multiple salient points and/or raised line.
8. the modified locking mechanism on a kind of surgical instruments according to claim 6 any one, which is characterized in that institute
It states salient point or raised line is elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025695.3A CN108992115A (en) | 2018-09-04 | 2018-09-04 | A kind of modified locking mechanism on surgical instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025695.3A CN108992115A (en) | 2018-09-04 | 2018-09-04 | A kind of modified locking mechanism on surgical instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108992115A true CN108992115A (en) | 2018-12-14 |
Family
ID=64591499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811025695.3A Withdrawn CN108992115A (en) | 2018-09-04 | 2018-09-04 | A kind of modified locking mechanism on surgical instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108992115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494090A (en) * | 2020-11-26 | 2021-03-16 | 苏州法兰克曼医疗器械有限公司 | Cutting anastomat suitable for minimally invasive surgery |
| CN112587190A (en) * | 2020-12-02 | 2021-04-02 | 苏州优脉瑞医疗科技有限公司 | Anastomat suitable for intracavity and having end bending degree adjusting and locking functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226196A1 (en) * | 2005-02-18 | 2006-10-12 | Ethicon Endo-Surgery, Inc. | Surgical instrument with guided laterally moving articulation member |
| CN101518459A (en) * | 2008-02-14 | 2009-09-02 | 伊西康内外科公司 | Surgical instrument articulation joint cover |
| CN103010155A (en) * | 2011-09-20 | 2013-04-03 | 胡夫许尔斯贝克&菲尔斯特两合公司 | Electric steering lock, application in vehicle and locking method of lock plunger thereof |
| CN205632923U (en) * | 2016-05-30 | 2016-10-12 | 浙江欣海船舶设计研究院有限公司 | Rotatable lookout tower of ro -Ro vessel |
| CN206107927U (en) * | 2016-08-30 | 2017-04-19 | 长沙师范学院 | Safe type children medicine packing box |
| CN209136738U (en) * | 2018-09-04 | 2019-07-23 | 苏州法兰克曼医疗器械有限公司 | A kind of modified locking mechanism on surgical instruments |
-
2018
- 2018-09-04 CN CN201811025695.3A patent/CN108992115A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226196A1 (en) * | 2005-02-18 | 2006-10-12 | Ethicon Endo-Surgery, Inc. | Surgical instrument with guided laterally moving articulation member |
| CN101518459A (en) * | 2008-02-14 | 2009-09-02 | 伊西康内外科公司 | Surgical instrument articulation joint cover |
| CN103010155A (en) * | 2011-09-20 | 2013-04-03 | 胡夫许尔斯贝克&菲尔斯特两合公司 | Electric steering lock, application in vehicle and locking method of lock plunger thereof |
| CN205632923U (en) * | 2016-05-30 | 2016-10-12 | 浙江欣海船舶设计研究院有限公司 | Rotatable lookout tower of ro -Ro vessel |
| CN206107927U (en) * | 2016-08-30 | 2017-04-19 | 长沙师范学院 | Safe type children medicine packing box |
| CN209136738U (en) * | 2018-09-04 | 2019-07-23 | 苏州法兰克曼医疗器械有限公司 | A kind of modified locking mechanism on surgical instruments |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494090A (en) * | 2020-11-26 | 2021-03-16 | 苏州法兰克曼医疗器械有限公司 | Cutting anastomat suitable for minimally invasive surgery |
| CN112587190A (en) * | 2020-12-02 | 2021-04-02 | 苏州优脉瑞医疗科技有限公司 | Anastomat suitable for intracavity and having end bending degree adjusting and locking functions |
| CN112587190B (en) * | 2020-12-02 | 2021-11-30 | 苏州优脉瑞医疗科技有限公司 | Anastomat suitable for intracavity and having end bending degree adjusting and locking functions |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181214 |
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| WW01 | Invention patent application withdrawn after publication |