CN102895054B - Dilator and conveying mechanism thereof - Google Patents
Dilator and conveying mechanism thereof Download PDFInfo
- Publication number
- CN102895054B CN102895054B CN201210257071.0A CN201210257071A CN102895054B CN 102895054 B CN102895054 B CN 102895054B CN 201210257071 A CN201210257071 A CN 201210257071A CN 102895054 B CN102895054 B CN 102895054B
- Authority
- CN
- China
- Prior art keywords
- dilator
- conveying mechanism
- core pipe
- pipe
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
The invention relates to a dilator and a conveying mechanism thereof, wherein the dilator is arranged on the conveying mechanism; the conveying mechanism comprises a leading head, a middle tube, a core tube and a sheath tube; the dilator is sleeved on the core tube and comprises a plurality of stripe supports; the conveying mechanism also comprises a loading mechanism; the loading mechanism loads the dilator, so that the dilator deforms to have a folding state and a dispersed dilating state; and in the dispersed dilating state, the supports of the dilator are in the shape of approximately more than half a ring extending outwards at the radial side of the core tube vertical to the blood flowing direction, and the dilator can be held in the sheath tube. According to the dilator and the conveying mechanism thereof, the dilator can dilate under the condition of not blocking the blood, thereby reducing the risk caused by blocking blood in operation; and simultaneously the dilator has different adjustable dilating degrees. In addition, the operation of conveying the dilator is more convenient and simpler.
Description
Technical field
The present invention relates to the medical apparatus and instruments that a kind of Wicresoft gets involved, refer to a kind of dilator for blood vessel dilating and conveying mechanism thereof especially.
Background technology
So-called dilator refers to treat the various sufferer that caused by luminal stenosis or obturation in blood vessel or other biological body and narrow or occlusion site is expanded, for maintaining the medical instruments that its lumen size is placed there.The appointed part that dilator is transported to blood vessel by conveying mechanism implements vasodilation.
The mode distended the blood vessels of current employing is fixed on by dilator on the fold spheroid of a balloon catheter, then dilator is inserted Ink vessel transfusing together with conduit, after dilator arrives the position of regulation, spheroid is expanded thus the effect reaching dilator expansion and engage with blood vessel wall, but in above-mentioned embodiment, while dilator is expanded in expansion by spheroid, also blood flow has been blocked, therefore need to carry out reduced pressure operation in the preoperative, if not only extend operating time but also blood pressure lowering can not cause danger to patient smoothly.
Utility model content
In view of this, main purpose of the present invention is to provide a kind of dilator and conveying mechanism thereof, expands, without the need to blood pressure lowering to realize dilator under non-blacked blood flow conditions.
Dilator provided by the invention and conveying mechanism thereof, described dilator is arranged on described conveying mechanism, described conveying mechanism comprises seeker, middle pipe, core pipe and outer sheath, described seeker is fixed on described core pipe, described outer sheath is sleeved on described middle pipe and also can moves axially relative to middle pipe, described middle pipe box is contained on described core pipe and also can moves axially relative to core pipe, described dilator is can the mode of movement be socketed on described core pipe relative to described core pipe, described dilator comprises the bar shaped support that many axial directions along described core pipe extend, described conveying mechanism also comprises the load maintainer described dilator being implemented to loading, by described load maintainer, described dilator is loaded, described dilator is made to be out of shape and to have closed configuration and discrete spread state, described closed configuration refers to, on the axial direction of described core pipe, the described bar shaped support of described dilator is in closing up with described core pipe the circular tube shaped be integrated, described discrete spread state refers to, on the axial direction of described core pipe, the described bar shaped support of described dilator is in the rectangular dispersion shape put centered by core pipe to surrounding scattering, in described discrete spread state, the described support of described dilator at described core pipe in the radial direction in roughly half annular of stretching out to side, in described closed configuration, described dilator can be housed in described outer sheath.
In said structure, dilator adopts strip-shaped bracket structure, substantially can not cause obstruction to blood flow, thus dilator is expanded under to the non-blacked condition of blood flow, namely without the need to blood pressure lowering, reduces in operation because of risk that blocking blood flow causes.Carried out Ink vessel transfusing conveying because dilator is housed in the outer sheath of conveying mechanism again, make simply more convenient to operate.
The present invention is preferred, described dilator is between described seeker and described middle pipe, described load maintainer comprises the spring being positioned at described dilator two ends and the drawing silk making described spring generation distortion, described spring is 2 places, lay respectively between described seeker and a side end of described dilator and between the end side of described dilator and described middle pipe, one end of described drawing silk is fixed on described conveying mechanism, and the other end connects described dilator.
The two ends of described dilator by the effect of described spring and described drawing silk, can relative or opposing to direction on do mobile each other and make dilator produce distortion.
The present invention is preferred, described drawing silk is 1, one end of described dilator near described seeker is provided with the through hole slid through for described drawing silk, one end of described drawing silk is fixed in described outer sheath, the other end, through described through hole, is fixedly connected with the other end of described dilator.
Under the effect of described drawing silk, the two ends of described dilator can make synchronous and same swing amplitude in the opposite direction.
The present invention is preferred, and the described bar shaped support of described dilator is 8, in discrete spread state, has gap each other in semiorbicular described support.
The present invention is preferred, the described support of described dilator, the direction that the direction flowed to blood flow in discrete spread state is perpendicular is at least by three limits more than the polygon that forms, and can mode be connected in relative rotation between limit with limit.
The present invention is preferred, and the connection between described limit and limit is hinged.
The present invention is preferred, the described support of described dilator, the direction that the direction flowed to blood flow in discrete spread state is perpendicular is trapezoidal shape, comprises the brace summer at top and the support column of both sides.
Because the support column of both sides can in the opposite direction synchronous and same swing amplitude relative to brace summer.When dilator is expanded at Ink vessel transfusing, can make the brace summer at top remain with the prerequisite that the corner dimension of the support column of both sides is roughly equal under expand, to ensure to implement effectively to support to blood vessel wall all the time.Thus make this dilator have adjustable different degrees of expansion.
The present invention is preferred, and described brace summer has the supporting surface wider compared with support column.
The present invention is preferred, and described conveying mechanism also comprises and keeps the discrete spread of dilator and the locking mechanism of closed configuration.
The present invention is preferred, and described locking mechanism is to realize the continuous locking mechanism to drawing silk, for keeping the discrete spread state in various degree of described dilator.
By arranging locking device on the conveyor, by the different expanded position locking of dilator, thus the stable of dilator expansion effect can be ensure that.
Dilator of the present invention and conveying mechanism thereof, by dilator being set to the structure of the polygon support of strip and increasing load maintainer, dilator is expanded under to the non-blacked condition of blood flow, namely without the need to carrying out blood pressure lowering to blood vessel in the preoperative, reduce because of the risk that blocking blood flow causes in operation, make again dilator have adjustable different degrees of expansion simultaneously.In addition, carry by the outer sheath that dilator is housed in conveying mechanism again, make the conveying operations of dilator simply convenient.
Accompanying drawing explanation
Fig. 1 represents and is in the dilator of expansion state and the structural representation of conveying mechanism thereof;
Fig. 2 represents the perspective view of the dilator being in expansion state;
Fig. 3 represents the schematic front view of the dilator being in expansion state;
Fig. 4 represents the schematic side view of the dilator being in expansion state;
Fig. 5 represents the load maintainer enlarged drawing of dilator left end in Fig. 1;
Fig. 6 represents the load maintainer enlarged drawing of dilator right-hand member in Fig. 1.
[in figure description of symbols]
10: dilator; 11: support; 111: brace summer; 111a: supporting surface; 112: support column; 12: end pipe; 121: through hole; 13: end pipe; 20: conveying mechanism; 21: seeker; 211: groove; 22: middle pipe; 23: core pipe; 24: outer sheath; 25: load maintainer; 251: spring; 252: spring; 253: drawing silk.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.Fig. 1 is the structural representation of dilator of the present invention and conveying mechanism thereof.For convenience of explanation, specify that in figure, left side is the distal side of dilator and conveying mechanism thereof, in figure, right side is the proximal lateral of dilator and conveying mechanism thereof.
Conveying mechanism 20 comprises seeker 21, middle pipe 22, core pipe 23, outer sheath 24, load maintainer 25 and is arranged on the locking mechanism (not shown) of outer sheath 24 near-end, wherein, middle pipe 22, core pipe 23 and outer sheath 24 are all hollow pipe, seeker 21 is in coniform, head end as conveying mechanism 20 is convenient to move in blood flow, is enclosed within core pipe 23 outside seeker 21.In addition, outer sheath 24 is sleeved on middle pipe 22, and middle pipe 22 is sleeved on core pipe 23, and outer sheath 24 can move axially relative to middle pipe 22, and middle pipe 22 can move axially relative to core pipe 23.Dilator 10 is between described seeker 21 and described middle pipe 22.
Load maintainer 25 comprises spring 251,252 and drawing silk 253.Described spring 251,252 is 2 places, between the end laying respectively at the distal side of seeker 21 and dilator 10 and between the end of the proximal lateral of dilator 10 and middle pipe 22.Concrete is: in the proximal face being positioned at dilator 10 side of seeker 21, be provided with the groove 211 for receiving shock mount 251, the distal side of this spring 251 is fixed on the bottom surface of groove 211, the proximal lateral of spring 251 is connected with the distal side of dilator 10, another place's spring 252 is housed in outer sheath 24, the distal side of this spring 252 is connected with the proximal lateral of dilator 10, and the proximal lateral of spring 252 is fixed on the distal side end face of middle pipe 22.
One end of drawing silk 253 is fixed on the near-end of outer sheath 24, convenient operation person operate, the end pipe 12 of the far-end of dilator 10 is provided with smooth through hole 121, and the other end of drawing silk 253, through this through hole 121, is fixedly connected with the end pipe 13 of the near-end of dilator 10.
Dilator 10 to be socketed on core pipe 23 and can to move relative to core pipe, dilator 10 can comprise many (such as, article 6 ~ 12) along the bar shaped support 11 that the axial direction of core pipe 23 extends, in the present embodiment, this bar shaped support 11 is set to 8, end pipe 12,13 is in a tubular form provided with at the two ends of 8 supports 11, the internal diameter of this end pipe 12,13 is greater than the external diameter of core pipe 23 and the size of its external diameter is roughly equal with the external diameter of middle pipe 22, and the end of support 11 is fixed in the circumferential end surfaces of end pipe 12,13.
In the initial state, dilator 10 is in bar shaped support 11 and concentrates the closed configuration being close in core pipe 23 periphery, namely, in such cases, the bar shaped support 11 closed up is formed as roughly with same tubulose of diameter with the end pipe 12,13 at these bar shaped support 11 two ends, dilator 10 is now housed in the outer sheath 24 of conveying mechanism 20, and to realize conveying in the blood vessel, the spring 251,252 under this kind of state is in the natural length state be not stretched.
When conveying mechanism 20 arrives assigned address and needs to discharge dilator 10, first remove down the length (roughly slightly larger than the axial length of dilator 10 under closed configuration) that outer sheath 24 specifies, make dilator 10 be exposed in blood vessel, then operate drawing silk 253 and discharge dilator.
In drawing process, the end pipe 12 of the far-end of drawing silk 253 pairs of dilators 10 applies the power towards proximal lateral, because the end pipe 13 of the near-end of dilator 10 is connected with this drawing silk 253 by the end pipe 12 of far-end, therefore the end pipe 13 of the near-end of dilator 10 is applied with to the power of a distally side simultaneously, due to the power equal and opposite in direction now suffered by two end pipes 12,13, direction is contrary, therefore, under the operation of this drawing, the end pipe 12,13 that can make the two ends of dilator 10 is simultaneously and with the relative motion of amplitude.
In the relative motor process of the end pipe 12,13 at two ends, bar shaped support 11 forms shelf-like to direction (the radially outer direction of the core pipe 23) expansion away from core pipe 23 periphery, thus completes the discrete spread of dilator 10.By the locking mechanism of operation setting at outer sheath 24 near-end, drawing silk 253 is locked again, make dilator 10 remain on discrete spread state.The spring 251,252 being now arranged on dilator 10 two ends is extended state.Again because locking mechanism can realize the continuous locking to drawing silk 253, therefore, by controlling the drawing distance of drawing silk 253, the degrees of expansion of this dilator 10 can be controlled, with the expansion demand in various degree of corresponding different blood vessel.
In the discrete spread state of dilator 10, on the direction that antegrade blood flow flows to, due to the bar shaped support 11 circumferentially outside dispersion shape in direction and make bar shaped support 11 produce larger gap each other, pass through smoothly to enable blood flow, achieve and do not need to carry out reduced pressure operation in advance when carrying out vasodilation operation, thus shorten operating time, reduce the risk of operation.On the direction perpendicular to the blood flow flow direction in this kind of state, the support 11 of dilator 10 is formed as the trapezoidal shape support 11 be made up of three limits, comprise two lateral support posts 112 of top margin brace summer 111 and equal length, this trapezoidal shape support 11 constitutes hexagon support together with the trapezoidal shape support 11 of opposite side corresponding thereto in the vertical direction flowed to blood flow, adopt hinged between brace summer 111 and support column 112, can relatively rotate, therefore at the two ends of dilator 10 simultaneously and motion relative to amplitude time, can ensure that brace summer 111 respectively and between the support column 112 of its both sides, have the angle of formed objects all the time.Again because brace summer 111 has the supporting surface 111a that be roughly parallel to blood vessel wider compared with support column 112, therefore can ensure that supporting surface 111a remains the position roughly paralleled with blood vessel wall in process of expansion, to play the effect of effective support blood vessels wall.
In addition, the support column 112 of dilator 10 and brace summer 111 can adopt Ultimum Ti or elastomeric stainless steel alloy etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Such as, in the present embodiment, the bar shaped support 11 of core pipe 23 side for having the trapezoidal of 3 limits, but is not limited thereto, and also only can have a limit, or is set to the polygon being greater than 3 limits, and between limit and limit, increase the mode of reinforcement.
Have again, in the present embodiment, dilator 10 only for expanding blood vessel, but is not limited thereto, and also can expand the overlay film frame in blood vessel, also can be applicable to carry out fenestration procedure to overlay film frame.
Also have, in the present embodiment, drawing silk 253 is one, 2 springs 251, 252 is all extension spring, one end of this drawing silk 253 is fixed in outer sheath 24, the other end is through the through hole 121 of dilator 10 one end, be fixedly connected with the other end of described dilator 10, but be not limited thereto, drawing silk also can be 2, one in 2 springs can be Compress Spring, namely, 1 drawing silk connects one end of conveying mechanism and dilator, another 1 drawing silk connects the other end of conveying mechanism and dilator, arrange 1 spring is Compress Spring simultaneously, another root spring is extension spring.
Claims (9)
1. a dilator and conveying mechanism thereof, described dilator (10) is arranged on described conveying mechanism (20), described conveying mechanism (20) comprises seeker (21), middle pipe (22), core pipe (23) and outer sheath (24), described seeker (21) is fixed on described core pipe (23), described outer sheath (24) is sleeved on described middle pipe (22) and above also can moves axially relative to middle pipe (22), described middle pipe (22) is sleeved on described core pipe (23) and above also can moves axially relative to core pipe (23), it is characterized in that,
Described dilator (10) can the mode of movement be socketed on described core pipe (23) relative to described core pipe (23),
Described dilator (10) comprises the bar shaped support (11) that many axial directions along described core pipe (23) extend,
Described conveying mechanism (20) also comprises the load maintainer (25) described dilator (10) being implemented to loading, by described load maintainer (25), described dilator (10) is loaded, described dilator (10) is made to be out of shape and to have closed configuration and discrete spread state
Described closed configuration refers to, on the axial direction of described core pipe, described bar shaped support (11) being of described dilator (10) closes up with described core pipe (23) circular tube shaped be integrated,
Described discrete spread state refers to, on the axial direction of described core pipe, the described bar shaped support (11) of described dilator (10) in the rectangular dispersion shape put centered by core pipe (23) to surrounding scattering,
In described discrete spread state, the described support (11) of described dilator (10) described core pipe (23) in the radial direction in roughly half annular of stretching out to side,
In described closed configuration, described dilator (10) can be housed in described outer sheath (24);
Described dilator (10) is arranged between described seeker (21) and described pipe (22),
Described load maintainer (25) comprises the spring (251,252) being positioned at described dilator (10) two ends and the drawing silk (253) making described spring (251,252) generation distortion,
Described spring (251, 252) be 2 places, between the side end laying respectively at described seeker (21) and described dilator (10) and between the end side of described dilator (10) and described middle pipe (22), specifically comprise: on the end face being positioned at dilator (10) side of seeker (21), be provided with the groove (211) for receiving shock mount (251), receive dress the end side of spring (251) be fixed on the bottom surface of groove (211), this spring (251) another side is connected with the end side of dilator (10), another spring (252) is housed in outer sheath (24), the end side of this spring (252) is connected with another side of dilator (10), and this spring (252) another side is fixed on the end side end face of middle pipe (22),
(the bar shaped support (11) of 10 adopts Ultimum Ti or elastomeric stainless steel alloy to dilator;
One end of described drawing silk (253) is fixed on described conveying mechanism (20), and the other end connects described dilator (10).
2. dilator according to claim 1 and conveying mechanism thereof, is characterized in that,
Described drawing silk (253) is 1,
One end of described dilator (10) near described seeker (21) is provided with the through hole (121) slid through for described drawing silk (253), one end of described drawing silk (253) is fixed in described outer sheath (24), the other end, through described through hole (121), is fixedly connected with the other end of described dilator (10).
3. dilator according to claim 1 and conveying mechanism thereof, is characterized in that,
The described bar shaped support (11) of described dilator (10) is 8, in discrete spread state, has gap each other in semiorbicular described support (11).
4. dilator according to claim 1 and conveying mechanism thereof, is characterized in that,
The described support (11) of described dilator (10), polygon for forming more than at least by three limits on the direction that the direction flowed to blood flow in discrete spread state is perpendicular, and can mode be connected in relative rotation between limit with limit.
5. dilator according to claim 4 and conveying mechanism thereof, is characterized in that,
Connection between described limit and limit is hinged.
6. dilator according to claim 1 and conveying mechanism thereof, is characterized in that,
The described support (11) of described dilator (10), the direction that the direction flowed to blood flow in discrete spread state is perpendicular is trapezoidal shape, comprises the brace summer (111) at top and the support column (112) of both sides.
7. dilator according to claim 6 and conveying mechanism thereof, is characterized in that,
Described brace summer (111) has the wider supporting surface (111a) of more described support column (112).
8. dilator according to claim 1 and conveying mechanism thereof, is characterized in that,
Described conveying mechanism (20) also comprises and keeps the discrete spread of described dilator (10) and the locking mechanism of closed configuration.
9. dilator according to claim 8 and conveying mechanism thereof, is characterized in that,
Described locking mechanism is to realize the continuous locking mechanism to described drawing silk (253), for keeping the discrete spread state in various degree of described dilator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257071.0A CN102895054B (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257071.0A CN102895054B (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102895054A CN102895054A (en) | 2013-01-30 |
| CN102895054B true CN102895054B (en) | 2015-01-07 |
Family
ID=47567750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210257071.0A Active CN102895054B (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102895054B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108236531B (en) * | 2016-12-23 | 2020-08-04 | 上海微创医疗器械（集团）有限公司 | Left ventricle isolation system, left ventricle isolation device and conveying device thereof |
| CN106691627A (en) * | 2017-03-08 | 2017-05-24 | 湖南埃普特医疗器械有限公司 | Intracavity temporary supporting device |
| CN109044440B (en) * | 2018-10-18 | 2024-07-02 | 上海市同济医院 | Anti-reflux digestive tract anastomosis stent used under endoscope and implantation system thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146026A (en) * | 1919-10-30 | 1920-07-08 | Henri Pegaitaz | Surgical dilator |
| CN1207050A (en) * | 1996-01-05 | 1999-02-03 | 梅迪科尔普S·A· | Microcommissurotomy device with levers |
| CN2933337Y (en) * | 2006-07-26 | 2007-08-15 | 维科医疗器械(苏州)有限公司 | Arteria covering membrane supporter capable of positioning release accurately and its conveyor |
| CN201333254Y (en) * | 2009-01-21 | 2009-10-28 | 王宏飞 | Medical internal-support hollow tubular balloon catheter |
| CN202313821U (en) * | 2011-11-11 | 2012-07-11 | 许尚栋 | Blood vessel bracket conveyer |
| CN202777423U (en) * | 2012-07-23 | 2013-03-13 | 张学民 | Dilator and conveying mechanism thereof |
-
2012
- 2012-07-23 CN CN201210257071.0A patent/CN102895054B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146026A (en) * | 1919-10-30 | 1920-07-08 | Henri Pegaitaz | Surgical dilator |
| CN1207050A (en) * | 1996-01-05 | 1999-02-03 | 梅迪科尔普S·A· | Microcommissurotomy device with levers |
| CN2933337Y (en) * | 2006-07-26 | 2007-08-15 | 维科医疗器械(苏州)有限公司 | Arteria covering membrane supporter capable of positioning release accurately and its conveyor |
| CN201333254Y (en) * | 2009-01-21 | 2009-10-28 | 王宏飞 | Medical internal-support hollow tubular balloon catheter |
| CN202313821U (en) * | 2011-11-11 | 2012-07-11 | 许尚栋 | Blood vessel bracket conveyer |
| CN202777423U (en) * | 2012-07-23 | 2013-03-13 | 张学民 | Dilator and conveying mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102895054A (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10537427B2 (en) | Valve stent used safely and valve replacement device having the same | |
| US20120289971A1 (en) | Multiple lumen retrieval device and method of using | |
| CN202777423U (en) | Dilator and conveying mechanism thereof | |
| JP2010524568A5 (en) | ||
| CN101780306B (en) | Medical inner support hollow tubular sac catheter | |
| US9981119B2 (en) | Bi-directional cannula | |
| US20070185567A1 (en) | Catheter system with stent device for connecting adjacent blood vessels | |
| JP2016503330A5 (en) | ||
| CN203154005U (en) | Aortic stent or aortic valve stent conveying system | |
| CN102895054B (en) | Dilator and conveying mechanism thereof | |
| CA2788391A1 (en) | Expandable and collapsible medical device | |
| WO2007123921A3 (en) | Devices for intravascular drug delivery | |
| CN106178180A (en) | A kind of folding drip stand | |
| CN107715279A (en) | A kind of universal multichannel spiral-expanding balloon system of blood vessel tracheae | |
| CN203355099U (en) | Balloon catheter for dilatation for interventional treatment of heart | |
| CN109381779A (en) | Foley's tube | |
| JP2023171437A5 (en) | ||
| US8900177B2 (en) | Self adjusting venous equalizing graft | |
| CN201333254Y (en) | Medical internal-support hollow tubular balloon catheter | |
| CN106691627A (en) | Intracavity temporary supporting device | |
| JP6336099B2 (en) | Introduction assembly and method for inserting an intracardiac device | |
| ITTO20130135A1 (en) | CATHETER FOR THE ADMINISTRATION OF ACTIVE AGENTS | |
| US20140066970A1 (en) | Endovascular medical system including expandable and collapsible framework and method using same | |
| CN204618495U (en) | A kind of biliary tract prosthesis causing bile duct injury to be treated for laparoscopic cholecystectomy | |
| CN211325905U (en) | Aortic branch stent system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |