CN203885553U - End effector and surgical operating instrument - Google Patents
End effector and surgical operating instrument Download PDFInfo
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- CN203885553U CN203885553U CN201420259016.XU CN201420259016U CN203885553U CN 203885553 U CN203885553 U CN 203885553U CN 201420259016 U CN201420259016 U CN 201420259016U CN 203885553 U CN203885553 U CN 203885553U
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- connector
- driving element
- tong arm
- end effector
- gathering sill
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Abstract
The utility model relates to the technical field of medical instruments, and discloses an end effector and a surgical operating instrument, in order to increase success rate of surgical operations and convenience and comfortableness in operation. The end effector comprises an H-beam with a straight slot, a driving element slidably assembled in the straight slot and at least one connecting piece hinged to the H-beam, an H-structure which is fastened at the far end of the H-beam is arranged at the far end of the driving element, and each connecting piece can rotate clockwise to be limited in a concave groove formed in the driving element as well as rotate anticlockwise to be separated from the concave groove. A fixed tong arm and a movable tong arm are respectively provided with slide rails longitudinally, and the root of the fixed tong arm is provided with guide grooves, capable of guiding the connecting pieces to move clockwise or anticlockwise, corresponding to both the connecting pieces. When the driving element is driven to move to the far side till the H-beam enters the slide rails, a jaw is driven to be closed by the H-beam, and the connecting pieces are separated from the corresponding concave grooves to enable the H-beam to be separated from the driving element.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of end effector and a kind of surgical operating instrument.
Background technology
Stapler is a kind of surgical operating instrument often using in surgical operation, has the function of cutting and suture tissue.As shown in Figure 1a, stapler mainly comprises: driving handle 100, slender bodies 200 and end effector 300, wherein, driving handle 100 is used for being gripped and operating by operator as driving device, control and drive to provide, the distally of driving handle 100 (is nearside near operator's a side when operation, be distally away from operator's a side) be connected with end effector 300 by slender bodies 200, end effector 300 is carried out cutting and sews up tissue in the driving of driving handle 100 with under controlling.
As shown in Figure 1a, driving handle 100 generally includes and drives trigger 101, as shown in Figure 1 b, drive trigger 101 to be installed in and drive trigger bearing pin 102, when driving trigger 101 in the time driving trigger bearing pin 102 to rotate with illustrated counter clockwise direction, the ratchet 103 hinged with driving trigger 101 drives distad axially-movable of tooth bar 104, and tooth bar 104 drives distad axially-movable of drive rod 105, thereby pulls the trigger power source is provided for apparatus.
As shown in Fig. 1 c, in drive rod 105 far-end insert end executors' housing and by driving element connector 301, be connected with driving element 302.The far-end of driving element 302 is provided with cutting edge (not shown) and I-shaped structure, as shown in Fig. 2 a～Fig. 2 c, in the time that drive rod drives driving element distal motion, first I-shaped structure 3021 drives jaw closure that nail anvil arm 310 and nail kit arm 320 form with grasping tissue 10, then drive ejector pin mechanism that staple 3201 is pulled the trigger to molding with to organizing 10 to sew up, cutting edge is to organizing 10 to cut simultaneously.
The defect that prior art exists is, I-shaped structure 3021 is along in the process of nail anvil arm 310 and nail kit arm 320 longitudinal distal motion, tissue 10 can be subject to further extruding and therefore produce distortion, if there is portion of tissue to be extruded jaw, the actual cutting and stitching length that causes operation is less than to Design Theory value, thereby can not reaches the surgical effect of expection.In addition, apparatus percussion process not only needs to overcome and cuts and organizes 10 and the resistance of molding staple 3201, also needs to overcome the resistance of compress tissue 10, and therefore, it is larger that apparatus is pulled the trigger required driving force, and the convenient comfortableness of operation is poor.
This problem exists equally in other surgical operating instrument that comprises similar end effector.
Utility model content
The purpose of this utility model is to provide a kind of end effector and a kind of surgical operating instrument, to improve the convenient comfortableness of operating success rate and operation.
The end effector that this utility model embodiment provides, comprising:
There is I-beam, the driving element of slidable fit in described groove and at least one connector hinged with described I-beam of groove, wherein, the far-end of described driving element has the I-shaped structure that is stopped at described I-beam far-end, each described connector can forward rotation to being limited in the concave groove arranging on described driving element and rotating backward to deviating from described concave groove;
Fixing tong arm and movable tong arm, longitudinally offer respectively dragging track, the root of described fixing tong arm corresponding described in each connector be provided with can lead described connector forward rotation and counter-rotational gathering sill;
In the time driving described driving element distal motion to described I-beam to enter described dragging track, the jaw that described fixing tong arm and described movable tong arm form is driven closed by described I-beam, and described in each, connector is deviate from corresponding described concave groove described I-beam is separated with described driving element; When driving described driving element proximal motion to described I-beam while departing from described dragging track, described in each, connector is limited in corresponding described concave groove and makes described I-beam synchronize and be driven with described driving element.
Preferably, described gathering sill has guide ramp and confined planes, and corresponding described connector has can slip into described gathering sill and by the spacing projection of described confined planes; When described projection is along the direction cunning that slips into described gathering sill during through described guide ramp, described connector rotates backward to deviating from described concave groove; When described projection is along the direction cunning that skids off described gathering sill during through described guide ramp, described connector forward rotation is to being limited in described concave groove.
Optionally, the root of described fixing tong arm comprises polycrystalline substance and side portion structure; Described gathering sill is the guide rail groove that is opened in described side portion structure, or described gathering sill is the direction recess that is opened in described polycrystalline substance.
Preferably, the quantity of described connector is two, be respectively upper connector and lower connector, described upper connector and described lower connector respectively with near-end top and the near-end lower hinge of described I-beam, described upper connector and described concave groove corresponding to described lower connector are arranged at respectively upper surface and the lower surface of described driving element.
Preferably, the described gathering sill that described upper connector is corresponding is the guide rail groove that is opened in described side portion structure; The described gathering sill that described lower connector is corresponding is the direction recess that is opened in described polycrystalline substance.
More excellent, on the hinging pin shaft of described lower connector and described I-beam, being arranged with torsion spring, two spring arms of described torsion spring are connected to respectively described I-beam and described lower connector, make described lower connector be subject to counter-rotational pretightning force.
Optionally, the vertical beam of described I-shaped structure has cutting edge.
Optionally, described fixing tong arm is nail kit arm, and described movable tong arm is nail anvil arm; Or described fixing tong arm is nail anvil arm, described movable tong arm is nail kit arm;
The described I-beam that the root of described fixing tong arm and/or described movable tong arm is provided with entering described dragging track carries out spacing limited impression face.
In technical solutions of the utility model, in the time distad driving driving element to I-beam to enter dragging track, the jaw of end effector is driven closed by I-beam, simultaneously each connector is deviate from corresponding concave groove I-beam is separated with driving element, and after this driving element can independently continue distal motion and complete the percussion of apparatus.In apparatus percussion process, I-beam is stopped at the root position of two tong arms, when remaining closed jaw, I-beam therefore can not be subject to driving force distad owing to separating with driving element, tissue in jaw is subject to the fixed press power that I-beam provides, therefore can maintain suitable thickness, deflection is less.In staple percussion process, driving element does not need operator that the closing force that makes jaw closure is additionally provided, and therefore can make staple molding consistent, is conducive to improve accuracy and the success rate of operation; In the time that operating apparatus is pulled the trigger, due to the resistance without overcoming again compress tissue, than prior art, the convenient comfortableness of surgical procedures also improves greatly.
This utility model embodiment also provides a kind of surgical operating instrument, comprises the end effector of aforementioned arbitrary technical scheme.Described surgical operating instrument comprises stapler.This surgical operating instrument has higher operation accuracy and operation is comparatively convenient comfortable.
Brief description of the drawings
Fig. 1 a is the overall structure schematic diagram of stapler;
Fig. 1 b is driving handle internal structure perspective view;
Fig. 1 c is drive rod and driving element connection diagram;
Fig. 2 a is the front schematic diagram of the jaw closure of existing end effector;
Fig. 2 b is schematic diagram after the jaw closure of existing end effector;
Fig. 2 c is that existing end effector is in percussion view;
Fig. 3 a is the front schematic diagram of the jaw closure of this utility model embodiment end effector;
Fig. 3 b is synchronously driven I-beam and driving element structural representation;
Fig. 3 c is before I-beam separates with driving element and separates afterwards schematic diagram;
Fig. 3 d is jaw root cutaway view before I-beam separates with driving element;
Fig. 3 e is that I-beam separates moment jaw root cutaway view with driving element;
Fig. 3 f is jaw root cutaway view after I-beam separates with driving element;
Fig. 4 is fixation clamps arm configuration schematic diagram;
Fig. 5 is adjustable clamp arm configuration schematic diagram;
Fig. 6 a is upper connector structural representation;
Fig. 6 b is lower connecting-piece structure schematic diagram.
This utility model embodiment Reference numeral:
50-groove; 51-I-beam; 52-driving element; 53-connector; 53a-upper connector;
Connector under 53b-; 54-I-shaped structure; 55-concave groove; 56-fixes tong arm; The movable tong arm of 57-;
58-dragging track; 59-gathering sill; 60-guide ramp; 61-confined planes; 62-projection;
63-polycrystalline substance; 64-side portion structure; 65-guide rail groove; 66-direction recess; 67-cutting edge;
68-limited impression face.
Detailed description of the invention
In order to improve the convenient comfortableness of operating success rate and operation, this utility model embodiment provides a kind of end effector and a kind of surgical operating instrument.The technical scheme of this utility model end effector comprises I-beam, the driving element of slidable fit in groove and at least one connector hinged with I-beam with groove, the far-end of driving element has the I-shaped structure that is stopped at I-beam far-end, each connector can forward rotation to being limited in the concave groove arranging on driving element and rotating backward to deviating from concave groove; Fixing tong arm and movable tong arm longitudinally offer respectively dragging track, and corresponding each connector of root of fixing tong arm is provided with can guiding connector forward rotation and counter-rotational gathering sill.In apparatus percussion process, I-beam is stopped at the root position of two tong arms, when remaining closed jaw, I-beam therefore can not be subject to driving force distad owing to separating with driving element, tissue in jaw is subject to the fixed press power that I-beam provides, therefore can maintain suitable thickness, deflection is less.In staple percussion process, driving element does not need operator that the closing force that makes jaw closure is additionally provided, and therefore can make staple molding consistent, is conducive to improve accuracy and the success rate of operation; In the time that operating apparatus is pulled the trigger, due to the resistance without overcoming again compress tissue, than prior art, the convenient comfortableness of surgical procedures also improves greatly.
For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples this utility model is described in further detail.
As shown in Fig. 3 a to Fig. 3 f, the end effector that this utility model embodiment provides, comprising:
There is I-beam 51, the driving element 52 of slidable fit in groove 50 and at least one connector 53 hinged with I-beam 51 of groove 50, wherein, the far-end of driving element 52 has the I-shaped structure 54 that is stopped at I-beam 51 far-ends, each connector 53 can forward rotation to being limited in the concave groove 55 arranging on driving element 52 and rotating backward to deviating from concave groove 55;
Fixing tong arm 56 and movable tong arm 57 (specifically please refer to shown in Fig. 4 and Fig. 5), longitudinally offer respectively dragging track 58, corresponding each connector 53 of root of fixing tong arm 56 is provided with can guiding connector 53 forward rotation and counter-rotational gathering sill 59;
In the time driving driving element 52 distal motion to enter dragging track 58 to I-beam 51, the jaw that fixing tong arm 56 and movable tong arm 57 form is driven closure by I-beam 51, and each connector 53 is deviate from corresponding concave groove 55 I-beam 51 is separated with driving element 52; In the time driving driving element 52 proximal motion to depart from dragging track 58 to I-beam 51, each connector 53 is limited in corresponding concave groove 55 makes I-beam 51 synchronize and be driven with driving element 52.
The particular type of the surgical operating instrument that comprises this end effector is not limit, for example can be for having cutting and sewing up stapler of function etc.In each embodiment of the present utility model, when " far-end " refers to that apparatus is operated away from one end of user, when " near-end " refers to that apparatus is operated near one end of user.For each connector 53, " forward " refers to turn to the direction that is limited in concave groove 55, and " oppositely " refers to turn to the direction of concave groove 55.
Taking stapler as example, fixing tong arm can be nail anvil arm, and movable tong arm is nail kit arm, or fixing tong arm is nail kit arm, and movable tong arm is nail anvil arm.In Fig. 3 a illustrated embodiment, fixing tong arm 56 is nail anvil arm, and movable tong arm 57 is nail kit arm.The near-end of driving element 52 is connected with drive rod, the far-end of driving element 52 is provided with I-shaped structure 54, nail anvil arm and nail kit arm longitudinally offer respectively dragging track 58, I-shaped structure 54 is during along dragging track 58 distal motion, I-shaped structure 54 drives ejector pin mechanism that staple is pulled the trigger to molding so that tissue is sewed up, as shown in Fig. 3 f, the vertical beam of I-shaped structure 54 is provided with cutting edge 67, can cut the tissue of clamping.
The concrete quantity of connector 53 is not limit, and only adopts one also can realize I-beam 51 and the separation of driving element 52 or the driving of synchronizeing.Because the main body of driving element 52 is generally tabular, preferably, the quantity of connector 53 is two, be respectively upper connector 53a and lower connector 53b (as shown in Fig. 6 a and Fig. 6 b), upper connector 53a and lower connector 53b respectively with near-end top and the near-end lower hinge of I-beam 51, upper connector 53a and concave groove 55 corresponding to lower connector 53b are arranged at respectively upper surface and the lower surface of driving element 52.In the time driving driving element 52 distal motion to enter dragging track 58 to I-beam 51, upper connector 53a synchronously separates with driving element 52 with lower connector 53b, in the time driving driving element 52 proximal motion to depart from dragging track 58 to I-beam 51, synchronous and driving element 52 combinations of upper connector 53a and lower connector 53b, the stressed relatively balance of driving element 52, can make the operation of apparatus more steadily, reliably like this.
The closing force that I-beam 51 acts on fixing tong arm 56 and movable tong arm 57 should be greater than I-shaped structure 54 and act on the closing force of fixing tong arm 56 and movable tong arm 57, like this, in the time driving driving element 52 distal motion to enter dragging track 58 to I-beam 51, the jaw that fixing tong arm 56 and movable tong arm 57 form is driven closed by two crossbeams of I-beam 51, I-shaped structure 54 no longer applies closing force to fixing tong arm 56 and movable tong arm 57, driving element 52 continues distal motion, only needs to overcome the resistance cutting and organizing with molding staple.Each staple is stressed comparatively balanced in sewing process, therefore, can ensure that staple forming height is consistent.
As shown in Fig. 3 d to 3f, in the time distad driving driving element 52 to I-beam 51 to enter dragging track 58, the jaw of end effector is driven closure by I-beam 51, simultaneously each connector 53 is deviate from corresponding concave groove 55 I-beam 51 is separated with driving element 52, and after this driving element 52 can independently continue distal motion and complete the percussion of apparatus.
Contrary with said process, after percussion, proximad drives driving element 52, after I-shaped structure 54 contacts with I-beam 51, continue proximad and drive driving element 52, I-beam 51 will be synchronized with the movement with driving element 52, and each connector 53 meeting forward rotation are until be limited in corresponding concave groove 55, driving element 52 and I-beam 51 initial position that is synchronized with the movement, completes the reset of apparatus afterwards.I-shaped structure 54 departs from after dragging track 58 with I-beam 51, and jaw can open by the return spring (not shown) reset being arranged between fixing tong arm 56 and movable tong arm 57.
Visible, in apparatus percussion process, I-beam is stopped at the root position of two tong arms, when remaining closed jaw, I-beam therefore can not be subject to driving force distad owing to separating with driving element, tissue in jaw is subject to the fixed press power that I-beam provides, therefore can maintain suitable thickness, deflection is less.In staple percussion process, driving element does not need operator that the closing force that makes jaw closure is additionally provided, and therefore can make staple molding consistent, is conducive to improve accuracy and the success rate of operation; In the time that operating apparatus is pulled the trigger, due to the resistance without overcoming again compress tissue, than prior art, the convenient comfortableness of surgical procedures also improves greatly.
The version of gathering sill 59 is not limit, if can guiding connector 53 forward rotation to being limited in concave groove 55 and rotating backward concave groove 55.As shown in Fig. 3 c, Fig. 6 a and Fig. 6 b, gathering sill 59 has guide ramp 60 and confined planes 61, and corresponding connector 53 has can slip into the spacing projection 62 of gathering sill 59 limited 61; When projection 62 is along the direction cunning that slips into gathering sill 59 during through guide ramp 60, connector 53 rotates backward to deviating from concave groove 55; When projection 62 is along the direction cunning that skids off gathering sill 59 during through guide ramp 60, connector 53 forward rotation are to being limited in concave groove 55.Guide ramp 60 is specifically as follows plane or curved surface, is not specifically limited here.
As shown in Fig. 3 c and Fig. 4, the root of fixing tong arm 56 comprises polycrystalline substance 63 and side portion structure 64, upper connector 53a corresponding gathering sill 59 for being opened in the guide rail groove 65 of side portion structure 64, gathering sill 59 corresponding to lower connector 53b is for being opened in the direction recess 66 of polycrystalline substance 63.When upper connector 53a and lower connector 53b distal motion are during to corresponding gathering sill 59, the projection 62 of upper connector 53a is climbed and is made upper connector 53a rotation to deviating from gradually corresponding concave groove 55 along guide ramp 60 gathering sill 59 is interior, simultaneously, the projection 62 of lower connector 53b falls in direction recess 66 along guide ramp 60 under the action of gravity of lower connector 53b, thereby make lower connector 53b rotation to deviating from corresponding concave groove 55 gradually, I-beam 51 separates with driving element 52.Understandable, in the time that apparatus resets, after I-shaped structure 54 contacts with I-beam 51, I-shaped structure 54 drives I-beam 51, and then drive upper connector 53a and lower connector 53b to rotate backward until enter each self-corresponding concave groove 55, I-beam 51 with driving element 52 again in conjunction with also being synchronizeed and be urged to initial position.
In other embodiment of the present utility model, upper connector and lower connector also can all rotate guiding by guide rail groove; If the quantity of connector is one, both can design by guide rail groove and rotate guiding, also can design by direction recess and rotate guiding.
In a more excellent embodiment, on the hinging pin shaft of lower connector 53b and I-beam 51, be arranged with torsion spring (this structure is not shown), two spring arms of torsion spring are connected to respectively I-beam 51 and lower connector 53b, make lower connector 53b be subject to counter-rotational pretightning force.Like this, instantly when connector 53b moves to corresponding direction recess 66, the projection 62 of lower connector 53b can fall in direction recess 66 along guide ramp 60 under the effect of torsion spring, and needn't rely on the gravity of lower connector 53b, therefore can make operation more reliable.
In the time that I-beam enters dragging track, the be fixed confined planes of gathering sill of tong arm root of the projection of connector is spacing, thereby I-beam is stopped at the root of two tong arms.As shown in Figure 5, the I-beam 51 that the root of fixing tong arm 56 and/or movable tong arm 57 can further be provided with entering dragging track 58 carries out spacing limited impression face 68.It is spacing that limited impression face 68 can further carry out stop to I-beam 51, and groove type structure can hold the I-beam 51 that enters dragging track 58, make end effector structure in the time that jaw is closed comparatively compact, optimize.
This utility model embodiment also provides a kind of surgical operating instrument, comprises the end effector of aforementioned arbitrary technical scheme.Surgical operating instrument comprises stapler.This surgical operating instrument has higher operation accuracy and operation is comparatively convenient comfortable.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model this utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of this utility model claim and equivalent technologies thereof, this utility model is also intended to comprise these changes and modification interior.
Claims (10)
1. an end effector, is characterized in that, comprising:
There is I-beam (51), the driving element (52) of slidable fit in described groove (50) and at least one connector (53) hinged with described I-beam (51) of groove (50), wherein, the far-end of described driving element (52) has the I-shaped structure (54) that is stopped at described I-beam (51) far-end, and each described connector (53) can forward rotation be gone up in the concave groove (55) arranging and rotate backward to deviating from described concave groove (55) to being limited in described driving element (52);
Fixing tong arm (56) and movable tong arm (57), longitudinally offer respectively dragging track (58), the root of described fixing tong arm (56) corresponding described in each connector (53) be provided with can lead described connector (53) forward rotation and counter-rotational gathering sill (59);
In the time driving described driving element (52) distal motion to described I-beam (51) to enter described dragging track (58), the jaw that described fixing tong arm (56) and described movable tong arm (57) form is driven closed by described I-beam (51), and described in each, connector (53) is deviate from corresponding described concave groove (55) described I-beam (51) is separated with described driving element (52); In the time driving described driving element (52) proximal motion to described I-beam (51) to depart from described dragging track (58), connector described in each (53) is limited in corresponding described concave groove (55) makes described I-beam (51) synchronize and be driven with described driving element (52).
2. end effector as claimed in claim 1, is characterized in that,
Described gathering sill (59) has guide ramp (60) and confined planes (61), and corresponding described connector (53) has can slip into described gathering sill (59) and by the spacing projection (62) of described confined planes (61);
When described projection (62) along the direction cunning that slips into described gathering sill (59) when described guide ramp (60), described connector (53) rotates backward to deviating from described concave groove (55); When described projection (62) along the direction cunning that skids off described gathering sill (59) when described guide ramp (60), described connector (53) forward rotation is to being limited in described concave groove (55).
3. end effector as claimed in claim 1, is characterized in that,
The root of described fixing tong arm (56) comprises polycrystalline substance (63) and side portion structure (64);
Described gathering sill (59) is for being opened in the guide rail groove (65) of described side portion structure (64), or described gathering sill (59) is for being opened in the direction recess (66) of described polycrystalline substance (63).
4. end effector as claimed in claim 3, it is characterized in that, the quantity of described connector (53) is two, be respectively upper connector (53a) and lower connector (53b), described upper connector (53a) and described lower connector (53b) respectively with near-end top and the near-end lower hinge of described I-beam (51), the described concave groove (55) that described upper connector (53a) and described lower connector (53b) are corresponding is arranged at respectively upper surface and the lower surface of described driving element (52).
5. end effector as claimed in claim 4, is characterized in that,
The described gathering sill (59) that described upper connector (53a) is corresponding is the guide rail groove (65) that is opened in described side portion structure (64);
The described gathering sill (59) that described lower connector (53b) is corresponding is the direction recess (66) that is opened in described polycrystalline substance (63).
6. end effector as claimed in claim 5, it is characterized in that, on the hinging pin shaft of described lower connector (53b) and described I-beam (51), be arranged with torsion spring, two spring arms of described torsion spring are connected to respectively described I-beam (51) and described lower connector (53b), make described lower connector (53b) be subject to counter-rotational pretightning force.
7. the end effector as described in claim 1～6 any one, is characterized in that, the vertical beam of described I-shaped structure (54) has cutting edge (67).
8. end effector as claimed in claim 7, is characterized in that,
Described fixing tong arm is nail kit arm, and described movable tong arm is nail anvil arm; Or described fixing tong arm (56) is nail anvil arm, described movable tong arm (57) is nail kit arm;
The described I-beam (51) that the root of described fixing tong arm (56) and/or described movable tong arm (57) is provided with entering described dragging track (58) carries out spacing limited impression face (68).
9. a surgical operating instrument, is characterized in that, comprises the end effector as described in claim 1～8 any one.
10. surgical operating instrument as claimed in claim 9, is characterized in that, described surgical operating instrument is stapler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259016.XU CN203885553U (en) | 2014-05-20 | 2014-05-20 | End effector and surgical operating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259016.XU CN203885553U (en) | 2014-05-20 | 2014-05-20 | End effector and surgical operating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203885553U true CN203885553U (en) | 2014-10-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259016.XU Withdrawn - After Issue CN203885553U (en) | 2014-05-20 | 2014-05-20 | End effector and surgical operating instrument |
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| CN (1) | CN203885553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078529A (en) * | 2014-05-20 | 2015-11-25 | 瑞奇外科器械(中国)有限公司 | End effector and surgical operating instrument |
-
2014
- 2014-05-20 CN CN201420259016.XU patent/CN203885553U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078529A (en) * | 2014-05-20 | 2015-11-25 | 瑞奇外科器械(中国)有限公司 | End effector and surgical operating instrument |
| CN105078529B (en) * | 2014-05-20 | 2017-03-29 | 瑞奇外科器械(中国)有限公司 | End effector and surgical operating instrument |
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Granted publication date: 20141022 Effective date of abandoning: 20170329 |