CN107280719A - A kind of dilator for operation - Google Patents
A kind of dilator for operation Download PDFInfo
- Publication number
- CN107280719A CN107280719A CN201610225047.7A CN201610225047A CN107280719A CN 107280719 A CN107280719 A CN 107280719A CN 201610225047 A CN201610225047 A CN 201610225047A CN 107280719 A CN107280719 A CN 107280719A
- Authority
- CN
- China
- Prior art keywords
- expansion arm
- expansion
- arm
- connecting portion
- dilator
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
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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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of dilator for operation, the first expansion arm of distraction plate is connected with including end, second expansion arm and the 3rd expansion arm between first expansion arm and the second expansion arm, also include connecting portion, it is located in the 3rd expansion arm and is connected with the actuator that the 3rd expansion arm can be driven to move along its length, the two ends of the connecting portion rotate with first expansion arm and the second expansion arm be connected respectively, rotated in opposite directions in first expansion arm and the second expansion arm, when the actuator drives the 3rd expansion arm movement simultaneously, three distraction plates are close to each other and surround cylindrical chamber；Rotated backward in first expansion arm and the second expansion arm, while when the actuator drives the 3rd expansion arm movement, three distraction plates are separated.Each expansion arm of the dilator for operation of the present invention can be moved independently so that unidirectional expansion effect is protruded.
Description
Technical field
The present invention relates to a kind of expander, more particularly to a kind of dilator for operation.
Background technology
During operation, medical worker can open up operative incision with sufferer at focus point, and medical worker is led to
Often first operative incision is strutted, is then stretched into and is operated in sufferer body by the otch again.By
It is flexible in the skin histology in human body, if therefore not fix in softened state operative incision, its
It can be resetted under the elastic reaction of skin histology, medical worker can not be smoothed out operation technique.It is existing
Expansion positioning is carried out to operative incision usually using expander in technology.This kind of expander includes three ends
The expansion arm of distraction plate is connected with, wherein distraction plate and expansion arm is perpendicular.During operation, distraction plate is stretched
Enter in operative incision, medical worker makes it play expansion operation and cut by operating expansion arm to move distraction plate
The effect of mouth.But expander of the prior art, its three expansion arms are in linkage status, also
It is that other two expansion arm is together moved, if this causes medical worker when driving the movement of a wherein expansion arm
Thinking individually to expand the operative incision on certain direction just can not realize, be that operation technique is made troubles.
The content of the invention
Problem to be solved by this invention is to provide a kind of each expansion arm can movable independently operation expansion
Prop.
In order to solve the above problems, the present invention provides a kind of dilator for operation, including end is connected with support
Open the first expansion arm of plate, the second expansion arm and between first expansion arm and the second expansion arm
3rd expansion arm, in addition to：
Connecting portion, its in the 3rd expansion arm and be connected with can drive the 3rd expansion arm along its
The actuator of length direction movement, the two ends of the connecting portion are expanded with first expansion arm and second respectively
Rotation of stretching one's arms is connected, and is rotated in opposite directions in first expansion arm and the second expansion arm, while the actuator
When driving the 3rd expansion arm movement, three distraction plates are close to each other and surround cylindrical chamber；
First expansion arm and the second expansion arm are rotated backward, while actuator driving the 3rd expansion
When arm is moved, three distraction plates are separated.
Preferably, being additionally provided with adjustment portion, the tune between first expansion arm and second expansion arm
Section portion is used to adjusting first expansion arm and second expansion arm is rotated relative to the 3rd expansion arm
Angle is simultaneously spacing on the angle position by first expansion arm and the second expansion arm.
Preferably, the adjustment portion include the screw rod that is vertically arranged in first expansion arm and
The connecting rod being correspondingly arranged with the screw rod, one end of the connecting rod is fixed with second expansion arm to be connected
Connect, the other end is hinged with the screw rod, two are additionally provided with the screw rod is used for clamping first expansion
Arm is with by first expansion arm and the spacing nut on the angle position of the second expansion arm.
Preferably, the adjustment portion is respectively perpendicular including two is arranged in first expansion arm and second
Screw rod in expansion arm, relative one end of two screw rods rotates and is equipped with two on connection, the screw rod
It is individual to be used for clamping first expansion arm or the second expansion arm with by its spacing spiral shell on the angle position
It is female.
Preferably, at least partly described 3rd expansion arm is provided with external screw thread, the connecting portion is placed on institute
State in the 3rd expansion arm, the actuator is adjusting nut, and it is set in the 3rd expansion arm, and
It is at least partially disposed in the connecting portion and can rotates to drive the 3rd expansion arm relative to the connecting portion
Mobile, the connecting portion is equipped with wing plate towards the both sides of first expansion arm and the second expansion arm, institute
The first expansion arm and the second expansion arm is stated to be hinged with the corresponding wing plate respectively.
Preferably, the adjusting nut deviates from the side of the distraction plate, its court located at the connecting portion
There is the cylindrical bump being coaxially disposed with the adjusting nut, the projection to the side of the connecting portion
Free end provided with one circle annular ridge, the connecting portion towards the side of the adjusting nut have one use
In the stopper slot for housing the annular ridge, the notch of the stopper slot has can be with the annular ridge
Mating reaction is to limit the spacing preiection of the adjusting nut axial location.
Preferably, the plate face of the distraction plate is curved so that three distraction plates can surround cylinder
Shape chamber；Manipulator is respectively provided with first expansion arm and the second expansion arm and the connecting portion
Handle.
Preferably, the distraction plate is respectively provided with connector, first expansion arm, the second expansion arm and
3rd expansion arm is respectively provided with for making the mounting hole of the corresponding connector insertion, and the connector has
Connect to pass in and out the through hole that the cylindrical chamber provides gateway for operating theater instruments with the cylindrical chamber.
Preferably, the distraction plate is made up of insulating materials, set on the outside of the free end of the distraction plate
Angled scale and the conductive part for being electrically connected with external nerve monitor.
The beneficial effect of dilator for operation of the present invention is, the first expansion arm, the second expansion arm and the 3rd
Expansion arm can be moved independently, and by setting up adjustment portion and drive division so that the mobile position of each expansion arm
Shifting can be adjusted respectively, so as to realize the flexibility of expansion operative incision.
Brief description of the drawings
Fig. 1 be embodiments of the invention one in dilator for operation structural representation.
Fig. 2 be embodiments of the invention two in dilator for operation structural representation.
Fig. 3 be embodiments of the invention two in dilator for operation decomposition chart.
When Fig. 4 is in contraction state for each distraction plate of the dilator for operation in embodiments of the invention two
Schematic diagram.
Reference：
The expansion arms of 1- first；The expansion arms of 2- second；The expansion arms of 3- the 3rd；4- bar shaped distraction plates；5- connections
Head；6- mounting holes；7- through holes；8- screw rods；9- connecting rods；10- nuts；11- actuators；12-
Connecting portion；13- cylindrical bumps；14- annular ridges；15- stopper slots；16- spacing preiections；17- wing plates；
18- connection handles；19- conductive parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail.
As shown in Figure 1, Figure 2 and Figure 4, the present invention discloses a kind of dilator for operation, for expanding hand
Art otch, in order to which medical worker is operated.The dilator for operation is connected with support including end
The first expansion arm 1, the second expansion arm 2 and the 3rd expansion arm 3 of plate 4 are opened, wherein, the 3rd expansion arm 3
Between the first expansion arm 1 and the second expansion arm 2, in addition to：
Connecting portion 12, it is in the 3rd expansion arm 3 and being connected with can drive the 3rd expansion arm 3 to be grown along it
The actuator 11 of direction movement is spent, the two ends of the connecting portion 12 are expanded with the first expansion arm 1 and second respectively
2 rotations of stretching one's arms are connected, so that the first expansion arm 1 and the second expansion arm 2 can be with respect to the 3rd expansion arms 3
It is opposite or rotate backward, when the first expansion arm 1 and the second expansion arm 2 are opposite or rotate backward, drive simultaneously
When moving part drives the movement of the 3rd expansion arm 3, three distraction plates 4 are servo-actuated to surround cylindrical chamber and can be
Moved in the vertical cylindrical chamber axially direction to expand or shrink the volume of cylindrical chamber, to realize expansion
The effect opened.It is, medical worker can make two by rotating the first expansion arm 1 and the second expansion arm 2
One end that person is connected with distraction plate 4 is close to each other or remote, i.e. make to be located at the first expansion arm 1 and the second expansion
Two distraction plates 4 stretched one's arms on 2 are close to each other or remote, while making by the regulation to actuator 11
Three expansion arms 3 are to closer or far from the one end of the first expansion arm 1 and the second expansion arm 2 provided with distraction plate 4
It is mobile, so that one end that three expansion arms are connected with distraction plate 4 can be close to each other or be located remotely from each other, from
And three distraction plates 4 is surrounded cylindrical chamber, while can separate to increase the transversal of cylindrical chamber
Face area, i.e. reach the effect of the operable area of regulation medical worker.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, the plate face of each distraction plate 4 in the present embodiment is curved,
With mutual in the one end of the first expansion arm 1, the second expansion arm 2 and the 3rd expansion arm 3 provided with distraction plate 4
When close, three distraction plates 4 can surround cylindrical chamber (chambers for being alternatively other shapes certainly),
In order to which medical worker sets all kinds of operation working columns in the cylindrical chamber.Further, originally
Distraction plate 4 in embodiment is made by titanium alloy and (other insulating materials also may be selected certainly to be made), its court
It is respectively provided with connector 5, each expansion arm and is equipped with for making corresponding company to one end of corresponding expansion arm
The mounting hole 6 that joint 5 is embedded in.Can be the relation of tight fit between connector 5 and corresponding mounting hole 6,
So that connector 5 stably can be embedded in mounting hole 6, certainly, the attachment structure of the two is not unique,
Also snap-in structure can be correspondingly arranged in connector 5 and mounting hole 6, such as being set on connector 5 can
The fixture block of telescopic moving is carried out, and corresponding be correspondingly arranged on the hole wall of mounting hole 6 can be with fixture block clamping
With the neck of separation etc..Each connector 5, which also has to connect with cylindrical chamber, thinks operating theater instruments turnover circle
Cylindrical chamber provides the through hole 7 of gateway.
Further, adjustment portion is additionally provided between the first expansion arm 1 and the second expansion arm 2, adjustment portion is used for
Angle that the first expansion arm 1 and the second expansion arm 2 rotated relative to the 3rd expansion arm 3 is adjusted simultaneously by first
The expansion arm 2 of expansion arm 1 and second is spacing on the angle position.It is, by adjustment portion by first
It is at position and then its is spacing on the position needed for the expansion arm 2 of expansion arm 1 and second is turned to.Regulation
The setting structure in portion is not unique, is now illustrated by two embodiments：
Embodiment one：As shown in figure 1, the first expansion arm 1 and the second expansion arm 2 belong to interaction relation,
I.e. one expansion arm is master arm, and another is slave arm.So that the first expansion arm 1 is master arm as an example,
Adjustment portion includes a screw rod 8 (i.e. provided with the externally threaded body of rod, can be alternatively cross section approximate for round bar
For the body of rod of rectangle, if the latter, then need to make body of rod one pair of which side be circular arc and relative set
External screw thread) and a connecting rod 9.Screw rod 8 is vertically arranged in the first expansion arm 1, and the first expansion
Arm 1 can be moved along screw rod 8.Connecting rod 9 is correspondingly arranged with screw rod 8, its one end and the second expansion arm
2 are fixedly connected, the other end with just to one end of screw rod 8 be hinged.When connecting rod 9 is connected with screw rod 8
Afterwards, plane where the two and the first expansion arm 1 and the place plane parallel of the second expansion arm 2.Screw rod 8
On be additionally provided with two and be used to coordinate clamping first expansion arm 1 with by the first expansion arm 1 and the second expansion arm 2
The spacing nut 10 on required angle position, that is, two nuts 10 are used to that angle will to be adjusted
The clamping positioning of the first expansion arm 1 afterwards, to prevent screw rod 8 from being slided and the company of drive with respect to the first expansion arm 1
Extension bar 9 is moved, and prevents from causing the first expansion arm 1 and the position of the second expansion arm 2 unstable, influence expansion
Effect.
Further, can be by adjusting two nuts when being intended to adjust the rotational angle of the first expansion arm 1
The distance that 10 the first expansion arm of position adjustments 1 is moved along screw rod 8, that is, for adjusting the first expansion
The amplitude that arm 1 is rotated relative to the 3rd expansion arm 3, if the first expansion arm 1 can be moved along screw rod 8 away from
From longer, then the rotation amplitude of the first expansion arm 1 is larger, on the contrary then smaller.In 1 turn of the first cursor
When dynamic, screw rod 8 can be moved relative to the first expansion arm 1 on the length direction of screw rod 8, due to screw rod 8
It is perpendicular with the first expansion arm 1, it is heeling condition when the first expansion arm 1 is rotated by vertical state therefore
During, the oblique movement of screw rod 8, and the together oblique movement of connecting rod 9 is driven, so that the second expansion
Arm 2 is rotated along the opposite direction of the first expansion arm 1, and rotational angle and the angle of rotation of the first expansion arm 1
Degree is equal, i.e. realize the linkage of the first expansion arm 1 and the second expansion arm 2.
Embodiment two：As shown in Figures 2 and 3, the present embodiment and the difference of embodiment one are, cancel
The setting of connecting rod 9, and in the second expansion arm 2 set connecting rod 9 position at wear again with
The screw rod 8 of two nuts 10, then by the screw rod 8 and the phase of screw rod 8 that is arranged in the first expansion arm 1
To one end be hinged., can be respectively by adjusting the nut on two screw rods 8 when operative incision to be expanded
10 adjust the rotational angle of corresponding expansion arm simultaneously, can also be by adjusting two spiral shells on any screw rod 8
Mother 10 is finely adjusted section to corresponding expansion arm, so that operative incision can carry out micro- expansion in one direction
, to coordinate the operation needs in operation.
It is noted that the setting of adjustment portion can not influence the movement of the 3rd expansion arm 3, such as Fig. 1 and figure
Shown in 2, the adjustment portion in above-mentioned two embodiment has been arranged at the first expansion arm 1 and the second expansion arm 2
Plane where being not provided with one end of distraction plate 4, and adjustment portion is parallel but non-coplanar with the 3rd expansion arm 3,
So as to have at regular intervals between the 3rd expansion arm 3 and adjustment portion, so as to ensure that the two will not influence each other.
Further, continuing with shown in Fig. 1 and Fig. 2, the 3rd expansion arm 3 in the present embodiment is one
External screw thread (the 3rd expansion arm is provided with the body of rod of rectangular cross-section, its relative both sides along its length
3 are provided with externally threaded part abbreviation threaded portion).Actuator 11 is adjusting nut, its at least part
It is set in the 3rd expansion arm 3 in connecting portion 12 and energy opposing connections 12 is rotated, drives
3rd expansion arm 3 is moved.Connecting portion 12 is all provided with towards the both sides of the first expansion arm 1 and the second expansion arm 2
There is wing plate 17, the first expansion arm 1 and the second expansion arm 2 are hinged with corresponding wing plate 17 respectively, so that
Two expansion arms have rotating fulcrum, at the same two expansion arms can also spacing connecting portion 12, make connection
Portion 12 is stable to be placed in the 3rd expansion arm 3.Further, the adjusting nut in the present embodiment is arranged on
Connecting portion 12 deviates from the side of distraction plate 4, and it has cylindrical bump 13 towards the side of connecting portion 12,
The cylindrical bump 13 is coaxially disposed with adjusting nut, and the free end of the cylindrical bump 13 is provided with a circle
Annular ridge 14.Connecting portion 12 has one to be used to house annular ridge 14 towards the side of adjusting nut
Stopper slot 15, and the notch of the stopper slot 15 is also formed with being used for and the mating reaction of annular ridge 14 is to limit
The spacing preiection 16 of adjusting nut axial location processed.Namely connecting portion 12 is by the way that annular ridge 14 is limited
The effect of spacing adjusting nut is realized in position in stopper slot 15, adjusting nut is only driven the 3rd in rotation
Expansion arm 3 moves linearly.The size of the stopper slot 15 can be slightly larger than the size of annular ridge 14, to protect
Demonstrate,prove the smooth rotation of adjusting nut.
Wherein, the length of the threaded portion in the 3rd expansion arm 3 is not unique, can according to actual needs in
The distance of three expansion arms 3 movement is limited, if for example needing the scope of the 3rd expansion arm 3 movement larger, that
The length of threaded portion needs longer, setting length that is on the contrary then reducing threaded portion.As shown in figure 3,
Medical worker operates expander for convenience, and the first expansion arm 1 and the second expansion arm 2 are not connected with distraction plate
Operation handle 18 is respectively provided with 4 one end and connecting portion 12.
Preferably, as depicted in figs. 1 and 2, medical worker operates when expanding operative incision for convenience
It is smooth and safe, can in the free end of distraction plate 4 outside provided with angle index and for the external world
Nerve monitor electrical connection conductive part 19, the setting structure of conductive part 19 is unique, as long as can
Ensure electrical connection nerve monitor.Expander in the present embodiment is made by connecting nerve monitor
Obtain when medical worker operates each expansion arm, whether each expansion arm can be obtained at any time by nerve monitor
Close to neurogenic information (in spinal surgery, by monitoring somatosensory evoked potentials (SEP) and fortune
Move Evoked ptential (MEP) to reflect the integrality of nervous system, when expansion arm is neighbouring or touches neural source
When nerve monitor can send the activity of nervous system in alarm, Real-time Feedback art, monitoring nerve has lossless
Wound, points out doctor to take counter-measure in time, increases operation safety, prevents iatrogenic neurotrosis.),
And neurogenic orientation can be learnt by the angle index on distraction plate 4, substantially increase medical worker's
Performance accuracy, it is ensured that the safety of patient.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, of the invention
Protection domain is defined by the claims.Those skilled in the art can be in essence of the invention and protection model
In enclosing, various modifications or equivalent substitution are made to the present invention, this modification or equivalent substitution also should be regarded as
Within the scope of the present invention.
Claims (9)
1. a kind of dilator for operation, including end are connected with the first expansion arm of distraction plate, the second expansion
Arm and the 3rd expansion arm between first expansion arm and the second expansion arm, it is characterised in that also
Including：
Connecting portion, its in the 3rd expansion arm and be connected with can drive the 3rd expansion arm along its
The actuator of length direction movement, the two ends of the connecting portion are expanded with first expansion arm and second respectively
Rotation of stretching one's arms is connected, and is rotated in opposite directions in first expansion arm and the second expansion arm, while the actuator
When driving the 3rd expansion arm movement, three distraction plates are close to each other and surround cylindrical chamber；
First expansion arm and the second expansion arm are rotated backward, while actuator driving the 3rd expansion
When arm is moved, three distraction plates are separated.
2. dilator for operation according to claim 1, it is characterised in that first expansion arm
Be additionally provided with adjustment portion between second expansion arm, the adjustment portion be used to adjusting first expansion arm and
The angle that second expansion arm is rotated relative to the 3rd expansion arm is simultaneously by first expansion arm and the
Two expansion arms are spacing on the angle position.
3. dilator for operation according to claim 2, it is characterised in that the adjustment portion includes
Screw rod that one is vertically arranged in first expansion arm and the connecting rod being correspondingly arranged with the screw rod,
One end of the connecting rod is fixedly connected with second expansion arm, and the other end is hinged with the screw rod, institute
State and be additionally provided with two on screw rod for clamping first expansion arm to expand first expansion arm and second
Stretch one's arms the spacing nut on the angle position.
4. dilator for operation according to claim 3, it is characterised in that the adjustment portion includes
Two are respectively perpendicular the screw rod being arranged in first expansion arm and the second expansion arm, two screw rods
Relative one end, which is rotated, to be equipped with two and is used for clamping first expansion arm or the on connection, the screw rod
Two expansion arms are with by its spacing nut on the angle position.
5. the dilator for operation according to claim 3 or 4, it is characterised in that at least part institute
The 3rd expansion arm is stated provided with external screw thread, the connecting portion is placed in the 3rd expansion arm, the driving
Part is adjusting nut, and it is set in the 3rd expansion arm, and is at least partially disposed in the connecting portion
And can be rotated relative to the connecting portion to drive the 3rd expansion arm to move, the connecting portion is described in
The both sides of first expansion arm and the second expansion arm are equipped with wing plate, first expansion arm and the second expansion arm
It is hinged respectively with the corresponding wing plate.
6. dilator for operation according to claim 5, it is characterised in that the adjusting nut is set
In the connecting portion deviate from the distraction plate side, its towards the side of the connecting portion have with it is described
The cylindrical bump that adjusting nut is coaxially disposed, the free end of the projection is provided with a circle annular ridge, institute
State connecting portion has a stopper slot for being used to house the annular ridge towards the side of the adjusting nut,
The notch of the stopper slot has can limit the adjusting nut axle with the annular ridge mating reaction
To the spacing preiection of position.
7. dilator for operation according to claim 6, it is characterised in that the plate of the distraction plate
Face is curved so that three distraction plates can surround cylindrical chamber；First expansion arm and second
Operation handle is respectively provided with expansion arm and the connecting portion.
8. dilator for operation according to claim 7, it is characterised in that the distraction plate has
There is connector, first expansion arm, the second expansion arm and the 3rd expansion arm are respectively provided with corresponding for making
The mounting hole of the connector insertion, the connector, which has to connect with the cylindrical chamber, thinks surgical device
Tool passes in and out the through hole that the cylindrical chamber provides gateway.
9. dilator for operation according to claim 8, it is characterised in that the distraction plate is by exhausted
Edge material is made, the outside of the free end of the distraction plate provided with angle index and for external nerve
The conductive part of patient monitor electrical connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225047.7A CN107280719A (en) | 2016-04-12 | 2016-04-12 | A kind of dilator for operation |
| PCT/CN2016/086859 WO2017177548A1 (en) | 2016-04-12 | 2016-06-23 | Surgical dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225047.7A CN107280719A (en) | 2016-04-12 | 2016-04-12 | A kind of dilator for operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107280719A true CN107280719A (en) | 2017-10-24 |
Family
ID=60042341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225047.7A Pending CN107280719A (en) | 2016-04-12 | 2016-04-12 | A kind of dilator for operation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107280719A (en) |
| WO (1) | WO2017177548A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555260B (en) * | 2020-12-02 | 2023-12-29 | 靖江市飞天紧固件制造有限公司 | Bolt difficult to loosen and mounting method of bolt |
| CN114041746B (en) * | 2021-11-17 | 2023-01-24 | 泰兴市致远知识产权服务有限公司 | A multi-functional external genitals that expands for gynaecology and obstetrics |
| CN115363512A (en) * | 2022-08-10 | 2022-11-22 | 李桂华 | Oral cavity expander for department of stomatology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074343A (en) * | 1999-04-16 | 2000-06-13 | Nathanson; Michael | Surgical tissue retractor |
| CN1863479A (en) * | 2003-08-14 | 2006-11-15 | 新特斯有限责任公司 | Multiple-blade retractor |
| EP1829488A1 (en) * | 2006-03-01 | 2007-09-05 | Ansabere Surgical S.L. | Improved retractor for surgical use |
| US20120046527A1 (en) * | 2010-03-11 | 2012-02-23 | Jason Cianfrani | Tissue Retractor and Method of Use |
| WO2012040206A1 (en) * | 2010-09-20 | 2012-03-29 | Synthes Usa, Llc | Spinal access retractor |
| US20130150677A1 (en) * | 2003-02-27 | 2013-06-13 | Nuvasive, Inc. | Surgical access system and related methods |
| CN103167825A (en) * | 2010-08-23 | 2013-06-19 | 纽文思公司 | Surgical access system and related methods |
| CN204218948U (en) * | 2011-08-31 | 2015-03-25 | 兰克斯股份有限公司 | A kind of surgical retractors |
| US20150119989A1 (en) * | 2004-10-08 | 2015-04-30 | Nuvasive, Inc. | Surgical Access System and Related Methods |
| US20150250466A1 (en) * | 2014-03-06 | 2015-09-10 | Amendia, Inc. | Retractor device |
-
2016
- 2016-04-12 CN CN201610225047.7A patent/CN107280719A/en active Pending
- 2016-06-23 WO PCT/CN2016/086859 patent/WO2017177548A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074343A (en) * | 1999-04-16 | 2000-06-13 | Nathanson; Michael | Surgical tissue retractor |
| US20130150677A1 (en) * | 2003-02-27 | 2013-06-13 | Nuvasive, Inc. | Surgical access system and related methods |
| CN1863479A (en) * | 2003-08-14 | 2006-11-15 | 新特斯有限责任公司 | Multiple-blade retractor |
| US20150119989A1 (en) * | 2004-10-08 | 2015-04-30 | Nuvasive, Inc. | Surgical Access System and Related Methods |
| EP1829488A1 (en) * | 2006-03-01 | 2007-09-05 | Ansabere Surgical S.L. | Improved retractor for surgical use |
| US20120046527A1 (en) * | 2010-03-11 | 2012-02-23 | Jason Cianfrani | Tissue Retractor and Method of Use |
| CN103167825A (en) * | 2010-08-23 | 2013-06-19 | 纽文思公司 | Surgical access system and related methods |
| WO2012040206A1 (en) * | 2010-09-20 | 2012-03-29 | Synthes Usa, Llc | Spinal access retractor |
| CN204218948U (en) * | 2011-08-31 | 2015-03-25 | 兰克斯股份有限公司 | A kind of surgical retractors |
| US20150250466A1 (en) * | 2014-03-06 | 2015-09-10 | Amendia, Inc. | Retractor device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017177548A1 (en) | 2017-10-19 |
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