CN216090639U - Closer with nail bin frame end part height-adjustable - Google Patents
Closer with nail bin frame end part height-adjustable Download PDFInfo
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- CN216090639U CN216090639U CN202122515074.7U CN202122515074U CN216090639U CN 216090639 U CN216090639 U CN 216090639U CN 202122515074 U CN202122515074 U CN 202122515074U CN 216090639 U CN216090639 U CN 216090639U
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Abstract
The utility model relates to a closer with a nail bin frame and an adjustable end height, which comprises a first nail bin frame, a second nail bin frame and a lifting assembly, wherein the first nail bin frame and the second nail bin frame are used for being matched with a nail bin or a nail anvil to suture tissues, and the lifting assembly is used for adjusting the size of a gap between the first nail bin frame and the second nail bin frame and clamping the tissues in a parallel state by the nail bin or the nail anvil corresponding to the first nail bin frame and the second nail bin frame. In the scheme of this application, make the nail storehouse that first nail storehouse frame and second nail storehouse frame correspond or nail anvil can keep the parallel state to the tissue centre gripping through control lifting unit, make the vast majority position on the tissue can be extruded simultaneously, reduced the degree that the tissue was crowded and pushed in extrusion process, reduced the condition that the tissue surface and closure ware take place the friction and cause the impaired condition in tissue surface, strengthened the stability of tissue by the closure ware position of tissue place in the closure ware extrusion process of closure ware.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a closer with a nail bin frame and an adjustable end part.
Background
The closer is a device used in medicine to replace manual suture, and the main working principle is to use anastomotic nails to perform separation or anastomosis on tissues, similar to a stapler; according to different application ranges, the surgical instrument can be mainly divided into a skin closer, a circular digestive tract (esophagus, stomach and intestine and the like) closer, a rectum closer, a circular hemorrhoid closer, a circumcision closer, a blood vessel closer, a hernia closer, a lung cutting and suturing device and the like.
Although current closures work well in cutting tissue and suturing an incision, the inventors have found in practice that current closures suffer from disadvantages, particularly:
in the process of clamping tissues by the existing closer, the two nail bin frames on the closer clamp the tissues in an acute angle, and the acute angle degrees of the two nail bin frames are continuously reduced in the clamping process, so that in the process of extruding the tissues, the part to be extruded on the tissues has the tendency of being extruded and pushed, the tissue is stretched to a larger extent due to extrusion and pushing, the extruded and pushed tissue has the possibility of sliding relative to the closer, and the condition that the surface of the tissue is damaged due to the friction between the surface of the tissue and the closer is increased.
Therefore, in view of the above problems, there is a need to design a closure device that reduces the degree to which tissue is squeezed during the process of clamping the tissue during suturing.
Disclosure of Invention
The utility model aims to: aiming at the defects of the existing closer in the using process, the closer with the height-adjustable end part of the staple cabin frame is provided, which reduces the extrusion pushing degree of the tissue in the process of clamping the tissue during the suture.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a be provided with staple cartridge frame tip height-adjustable's closure, includes first staple cartridge frame, second staple cartridge frame and lifting unit, first staple cartridge frame with second staple cartridge frame all is used for cooperation nail storehouse or nail anvil to sew up the tissue, lifting unit is used for adjusting first staple cartridge frame with clearance size between the second nail cartridge frame, and enable first staple cartridge frame with nail storehouse or nail anvil that second staple cartridge frame corresponds carry out the centre gripping with the tissue under parallel state.
As the prior technical scheme, the lifting assembly comprises a telescopic device with a telescopic function, one end of the telescopic device drives the first nail bin frame to move, and the other end of the telescopic device drives the second nail bin frame to move.
As the preferential technical scheme of the application, the telescopic device is a hydraulic rod.
As a preferential technical scheme of the application, the lifting assembly further comprises a first connecting piece, the first connecting piece is connected with the telescopic device and the first nail bin frame, and the first nail bin frame and the first connecting piece can rotate relatively and can be fixed relatively; and/or the lifting assembly further comprises a second connecting piece, the second connecting piece is connected with the telescopic device and the second nail bin frame, and the second nail bin frame and the second connecting piece can rotate relatively and can be fixed relatively.
As the preferential technical scheme of this application, putting into the tissue first nail storehouse frame with the in-process of second nail storehouse frame, the tissue is followed the part that the one end of first nail storehouse frame got into does the end that stretches into of first nail storehouse frame, lifting unit with the position that first nail storehouse frame is connected does keep away from on the first nail storehouse frame stretch into the part of end.
As the preferential technical scheme of this application, still be provided with locking device on the lifting unit, locking device is used for the telescoping device drive first nail storehouse frame with the distance is fixed between the two when the second nail storehouse frame moves.
As the prior technical scheme, the locking device comprises a locking groove and a locking rod, and the locking rod can slide in the locking groove.
As the preferential technical scheme of this application, the bottom matched with part that is used for with nail storehouse or nail anvil on the first nail storehouse frame is first nail storehouse frame bottom, first nail storehouse frame bottom is provided with the first gasket that has elastic deformation ability, and/or, the bottom matched with part that is used for with nail storehouse or nail anvil on the second nail storehouse frame is second nail storehouse frame bottom, second nail storehouse frame bottom is provided with the second gasket that has elastic deformation ability.
As a preferential technical scheme of the application, the first shim is used for being in contact with two end parts of the bottom of the nail bin or the anvil, and/or the second shim is used for being in contact with two end parts of the bottom of the nail bin or the anvil.
The first gasket is of a concave structure, the protruding parts at two ends of the first gasket are located at two ends of the bottom of the first nail bin frame, and/or the second gasket is of a concave structure, and the protruding parts at two ends of the second gasket are located at two ends of the bottom of the second nail bin frame.
Compared with the prior art, the utility model has the beneficial effects that:
in the scheme of the application, the closer with the height-adjustable end part of the nail bin frame comprises a first nail bin frame, a second nail bin frame and a lifting assembly, in the using process, a nail bin provided with anastomotic nails is placed on the first nail bin frame and the second nail bin frame, the size of a gap between the first nail bin frame and the second nail bin frame is adjusted by controlling the lifting assembly, and the nail bin or the nail anvil corresponding to the first nail bin frame and the second nail bin frame can keep a parallel state to clamp the tissue, so that most parts on the tissue can be extruded at the same time, the extrusion degree of the tissue in the extrusion process is reduced, the condition that the surface of the tissue is damaged due to the friction between the surface of the tissue and the closer is reduced, the stability of the tissue in the position of the closer in the extrusion process of the closer is enhanced, and the sewing work is facilitated;
the lifting assembly comprises a first connecting piece which is connected with the telescopic device and the first nail bin frame, the first nail bin frame and the first connecting piece can rotate relatively and can be fixed relatively, and/or the lifting assembly comprises a second connecting piece which is connected with the telescopic device and the second nail bin frame, the second nail bin frame and the second connecting piece can rotate relatively and can be fixed relatively, the included angle between the first nail bin frame and the second nail bin frame is enlarged by enabling the first nail bin frame and the first connecting piece to rotate relatively or enabling the second nail bin frame and the second connecting piece to rotate relatively, so that loading of a nail bin before suturing is facilitated, and meanwhile, when tissues with different tissue thicknesses are sutured, the contact area between the tissue and the closer when the closer is just contacted with the sutured tissue is further improved by adjusting or finely adjusting the included angle between the first nail bin frame and the second nail bin frame, further reducing the degree of extrusion of the tissue in the extrusion process;
the part of the first nail bin frame, which is used for being matched with the bottom of the nail bin or the nail anvil, is the bottom of the first nail bin frame, the first gasket with elastic deformation capacity is arranged at the bottom of the first nail bin frame, the part of the second nail bin frame, which is used for being matched with the bottom of the nail bin or the nail anvil, is the bottom of the second nail bin frame, the second gasket with elastic deformation capacity is arranged at the bottom of the second nail bin frame, after the nail bin or the nail anvil is loaded on the first nail bin frame and the second nail bin frame, the distance between the first nail bin frame and the second nail bin frame is continuously shortened and the tissues are extruded in the nail bin or the nail bin, the first gasket and the second gasket can be elastically deformed, so that the extrusion force of a part of the closer to the tissues is converted into the deformation quantity of the first gasket and the second gasket, the extrusion effect of the nail bin or the nail anvil on the first nail bin and the second nail bin to the tissues is buffered, and the problem that the extrusion force of the nail bin or the nail anvil on the first nail bin and the second nail bin to the tissues is overlarge to cause tissue damage is avoided And under the condition of injury, the distance between the first nail bin frame and the second nail bin frame can be adjusted according to the deformation degree of the first gasket and the second gasket, so that the closer can suture the tissues conveniently.
Description of the drawings:
FIG. 1 is a schematic structural view of one embodiment of a closure of the present application provided with a cartridge frame end portion adjustable in height;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 of a closure of the present application with an adjustable height end of a magazine rack;
FIG. 3 is a schematic view of a portion of an embodiment of a closure of the present application having a cartridge frame end with an adjustable height;
FIG. 4 is an enlarged schematic view of a portion B of FIG. 3 of a closure of the present application with an adjustable height end of a magazine rack;
FIG. 5 is a schematic structural view of a magazine rack including a first magazine rack and a second magazine rack according to an embodiment of the present disclosure provided with a closure having adjustable end heights;
the following are marked in the figure: 1-a first nail bin frame, 2-a second nail bin frame, 3-a lifting assembly, 4-a telescopic device, 5-a first connecting piece, 6-a second connecting piece, 7-a locking device, 8-a locking groove, 9-a locking rod, 10-a first gasket and 11-a second gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.
Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments of the present invention and the features and technical solutions thereof may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and such terms are used for convenience of description and simplification of the description, and do not refer to or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows: as shown in reference to figures 1-4,
the embodiment provides a be provided with staple cartridge frame tip height-adjustable's closer, including first staple cartridge frame 1, second staple cartridge frame 2 and lifting unit 3, first staple cartridge frame 1 with second staple cartridge frame 2 all is used for cooperating nail storehouse or nail anvil to sew up tissue, lifting unit 3 is used for adjusting first staple cartridge frame 1 with clearance size between second staple cartridge frame 2, and enable first staple cartridge frame 1 with the nail storehouse or the nail anvil that second staple cartridge frame 2 corresponds carry out the centre gripping with tissue under parallel state.
The closer with the height-adjustable nail bin frame end part comprises a first nail bin frame 1, a second nail bin frame 2 and a lifting assembly 3, in the using process, a nail bin provided with anastomotic nails is placed on the first nail bin frame 1 and the second nail bin frame 2, the size of a gap between the first nail bin frame 1 and the second nail bin frame 2 is adjusted by controlling the lifting assembly 3, and the nail bin or the nail anvil corresponding to the first nail bin frame 1 and the second nail bin frame 2 can keep a parallel state to clamp tissues, so that most parts on the tissues can be extruded simultaneously, the degree of extrusion and pushing of the tissues in the extruding process is reduced, the condition that the surfaces of the tissues are damaged due to friction between the surfaces of the tissues and the closer is reduced, meanwhile, the stability of the tissues in the position of the closer in the extruding process of the closer is enhanced, and the sewing work is facilitated.
In a preferred embodiment, in addition to the above-mentioned mode, the lifting assembly 3 further includes a telescopic device 4 having a telescopic function, one end of the telescopic device 4 drives the first magazine frame 1 to move, and the other end of the telescopic device 4 drives the second magazine frame 2 to move.
In a preferred embodiment, in addition to the above-described embodiment, the telescopic device 4 is a hydraulic rod.
As a preferred embodiment, on the basis of the above manner, further, the lifting assembly 3 further includes a first connecting member 5, the first connecting members 5 are both connected with the telescopic device 4 and the first magazine frame 1, and the first magazine frame 1 and the first connecting member 5 can relatively rotate and can relatively be fixed; and/or, the lifting component 3 further comprises a second connecting piece 6, the second connecting piece 6 is connected with the telescopic device 4 and the second nail bin frame 2, and the second nail bin frame 2 and the second connecting piece 6 can rotate relatively and can be fixed relatively.
The lifting component 3 comprises a first connecting piece 5, the first connecting piece 5 is connected with the expansion device 4 and the first nail bin frame 1, the first nail bin frame 1 and the first connecting piece 5 can rotate relatively and can be fixed relatively, and/or the lifting component 3 comprises a second connecting piece 6, the second connecting piece 6 is connected with the expansion device 4 and the second nail bin frame 2, the second nail bin frame 2 and the second connecting piece 6 can rotate relatively and can be fixed relatively, the included angle between the first nail bin frame 1 and the second nail bin frame 2 is enlarged by enabling the first nail bin frame 1 and the first connecting piece 5 to rotate relatively or enabling the second nail bin frame 2 and the second connecting piece 6 to rotate relatively, the loading of the nail bin before sewing is convenient, and when tissues with different tissue thicknesses are sewn, the included angle between the first nail bin frame 1 and the second nail bin frame 2 is adjusted or finely adjusted, further increasing the contact area of the closer to the tissue just before the closer contacts the sutured tissue, further reducing the degree to which the tissue is pushed during the squeezing process.
As a preferred embodiment, on the basis of the above-mentioned manner, in the process of placing the tissue into the first magazine frame 1 and the second magazine frame 2, a portion of the tissue entering from one end of the first magazine frame 1 is an extending end of the first magazine frame 1, and a portion of the lifting assembly 3 connected to the first magazine frame 1 is a portion of the first magazine frame 1 far away from the extending end.
In the process of putting tissues into the first nail bin frame 1 and the second nail bin frame 2, the part of the tissues entering from one end of the first nail bin frame 1 is the extending end of the first nail bin frame 1, and the part of the lifting assembly 3 connected with the first nail bin frame 1 is arranged on the first nail bin frame 1 and is far away from the extending end, so that the blockage of the lifting assembly 3 to the tissues in the process of clamping the tissues by the first nail bin frame 1 and the second nail bin frame 2 is avoided.
Example two: as shown in reference to figures 1-5,
the difference between this embodiment and the first embodiment is: the lifting assembly 3 is further provided with a locking device 7, and the locking device 7 is used for fixing the distance between the first nail bin frame 1 and the second nail bin frame 2 when the telescopic device 4 drives the first nail bin frame and the second nail bin frame to move.
As a preferred embodiment, in addition to the above-mentioned mode, the locking device 7 further includes a locking groove 8 and a locking rod 9, and the locking rod 9 is slidable in the locking groove 8.
The lifting assembly 3 is further provided with a locking device 7, the locking device 7 is used for fixing the distance between the first nail bin frame 1 and the second nail bin frame 2 when the telescopic device 4 drives the first nail bin frame 1 and the second nail bin frame 2 to move, the locking device 7 comprises a locking groove 8 and a locking rod 9, the locking rod 9 can slide in the locking groove 8, when the cavity channel is sutured, the telescopic device 4 adjusts the distance between the first nail bin frame 1 and the second nail bin frame 2, the locking rod 9 slides relative to the locking groove 8, and by controlling the locking device 7, the stability of the first nail bin frame 1 and the second nail bin frame 2 in relative fixation is enhanced, the stability of extruding the tissue by the nail bin on the first nail bin frame 1 and the second nail bin frame 2 is also enhanced, and the nail bin and the tissue are kept in a relative fixed state in the suturing process.
As a preferred embodiment, on the basis of the above manner, further, a portion of the first magazine frame 1, which is used for being matched with the bottom of the staple cartridge or the nail anvil, is the bottom of the first magazine frame 1, a first gasket 10 having elastic deformation capability is arranged at the bottom of the first magazine frame 1, and/or a portion of the second magazine frame 2, which is used for being matched with the bottom of the staple cartridge or the nail anvil, is the bottom of the second magazine frame 2, and a second gasket 11 having elastic deformation capability is arranged at the bottom of the second magazine frame 2.
The part of the first nail bin frame 1, which is used for being matched with the bottom of the nail bin or the nail anvil, is the bottom of the first nail bin frame 1, the bottom of the first nail bin frame 1 is provided with a first gasket 10 with elastic deformation capacity, the part of the second nail bin frame 2, which is used for being matched with the bottom of the nail bin or the nail anvil, is the bottom of the second nail bin frame 2, the bottom of the second nail bin frame 2 is provided with a second gasket 11 with elastic deformation capacity, after the nail bin or the nail anvil is loaded on the first nail bin frame 1 and the second nail bin frame 2, the distance between the first nail bin frame 1 and the second nail bin frame 2 is continuously shortened and the nail bin or the nail anvil extrudes tissues, the first gasket 10 and the second gasket 11 can generate elastic deformation, so that the extrusion force of a part of a closer to the tissues is converted into the deformation quantity of the first gasket 10 and the second gasket 11, and the extrusion of the tissues on the first nail bin and the second nail bin or the nail anvil can play a role in buffering role, the condition that the extrusion force of the nail bins or the nail anvil on the first nail bin and the second nail bin to tissues is too large to cause tissue damage is avoided, and meanwhile, the distance between the first nail bin frame 1 and the second nail bin frame 2 can be adjusted according to the deformation degree of the first gasket 10 and the second gasket 11, so that the closer can suture the tissues conveniently.
In a preferred embodiment, in addition to the above manner, the first spacer 10 is used for contacting with two end portions of the bottom of the nail bin or the anvil, and/or the second spacer 11 is used for contacting with two end portions of the bottom of the nail bin or the anvil.
When a nail bin or an anvil is placed into a nail bin frame (the nail bin frame refers to a first nail bin frame 1 and a second nail bin frame 2), a first gasket 10 is in contact with two end parts of the bottom of the nail bin or the anvil, a second gasket 11 is in contact with two end parts of the bottom of the nail bin or the anvil, the distance between the first nail bin frame 1 and the second nail bin frame 2 is gradually reduced, the nail bin or the anvil is in contact with tissues and extrudes the tissues, when the nail bin or the anvil is in contact with the tissues and the angle needs to be finely adjusted, the first gasket 10 and the second gasket 11 corresponding to the two end parts of the nail bin or the anvil are pressed and deformed, the deformation quantity of parts, used for being in contact with the two end parts of the bottom of the nail bin or the anvil, on the first gasket 10 is different, and the fine adjustment of the nail bin or the anvil angle is facilitated while the buffering effect is achieved.
In a preferred embodiment, in addition to the above-mentioned embodiment, the first spacer 10 has a concave structure, and the protruding portions at both ends of the first spacer 10 are located at both ends of the bottom of the first magazine rack 1, and/or the second spacer 11 has a concave structure, and the protruding portions at both ends of the second spacer 11 are located at both ends of the bottom of the second magazine rack 2.
The first gasket 10 is arranged into a concave structure, and the two end convex parts on the first gasket 10 are positioned at the two end parts of the bottom of the first nail bin frame 1, in the process of clamping tissues by using the closer, the deformation amount of the two end parts on the first gasket 10 is larger than that of the middle part on the first gasket 10, so that the first gasket 10 is divided into two deformation forms, wherein one deformation form is that the two end convex parts of the first gasket 10 are contacted with the nail bin or the nail anvil to deform, the other deformation form is that the middle part and the two end convex parts of the first gasket 10 are contacted with the nail bin or the nail anvil to deform, when the nail bin or the nail anvil is just contacted with the tissues to slightly adjust the angle, the two end convex parts on the first gasket 10 are easy to deform, and the angles of the nail bin or the nail anvil are easily adjusted, when the middle part and the two end convex parts of the first gasket 10 are contacted with the nail bin or the nail anvil to deform along with the increasing deformation degree of the two end convex parts on the first gasket 10, most of the first spacer 10 is deformed, so that the buffering effect of the nail bin or the nail anvil on the first nail bin on the extrusion of the tissues is further improved.
The above embodiments are only used for illustrating the utility model and not for limiting the technical solutions described in the utility model, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.
Claims (10)
1. The utility model provides a be provided with magazine frame tip height-adjustable's closer which characterized in that: the tissue stitching device comprises a first nail bin frame, a second nail bin frame and a lifting assembly, wherein the first nail bin frame and the second nail bin frame are used for being matched with a nail bin or a nail anvil to stitch tissues, the lifting assembly is used for adjusting the size of a gap between the first nail bin frame and the second nail bin frame, and the nail bin or the nail anvil corresponding to the first nail bin frame and the second nail bin frame can clamp the tissues in a parallel state.
2. The closer of claim 1, wherein: the lifting assembly comprises a telescopic device with a telescopic function, one end of the telescopic device drives the first nail bin frame to move, and the other end of the telescopic device drives the second nail bin frame to move.
3. The closer of claim 2, wherein: the telescopic device is a hydraulic rod.
4. The closer of claim 2, wherein: the lifting assembly further comprises a first connecting piece, the first connecting piece is connected with the telescopic device and the first nail bin frame, and the first nail bin frame and the first connecting piece can rotate relatively and can be fixed relatively; and/or the lifting assembly further comprises a second connecting piece, the second connecting piece is connected with the telescopic device and the second nail bin frame, and the second nail bin frame and the second connecting piece can rotate relatively and can be fixed relatively.
5. The closer of claim 2, wherein: in the process of placing tissues into the first nail bin frame and the second nail bin frame, the part of the tissues entering from one end of the first nail bin frame is the extending end of the first nail bin frame, and the part of the lifting assembly, which is connected with the first nail bin frame, is the part, which is far away from the extending end, of the first nail bin frame.
6. The closer of claim 2, wherein: and the lifting assembly is also provided with a locking device, and the locking device is used for fixing the distance between the first nail bin frame and the second nail bin frame when the telescopic device drives the first nail bin frame and the second nail bin frame to move.
7. The closer of claim 6, wherein: the locking device comprises a locking groove and a locking rod, and the locking rod can slide in the locking groove.
8. The closer of any one of claims 1 to 7, wherein: the nail magazine comprises a first nail magazine frame, a second nail magazine frame and a nail anvil, wherein the first nail magazine frame is used for matching with the bottom of the nail magazine or the nail anvil and is provided with a first gasket with elastic deformation capacity, and/or the second nail magazine frame is used for matching with the bottom of the nail magazine or the nail anvil and is provided with a second gasket with elastic deformation capacity.
9. The closer of claim 8, wherein: the first shim is used for being contacted with two end parts of the bottom of the nail bin or the anvil, and/or the second shim is used for being contacted with two end parts of the bottom of the nail bin or the anvil.
10. The closer of claim 9, wherein: the first gasket is of a concave structure, the protruding parts at two ends of the first gasket are located at two ends of the bottom of the first nail bin frame, and/or the second gasket is of a concave structure, and the protruding parts at two ends of the second gasket are located at two ends of the bottom of the second nail bin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122515074.7U CN216090639U (en) | 2021-10-19 | 2021-10-19 | Closer with nail bin frame end part height-adjustable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122515074.7U CN216090639U (en) | 2021-10-19 | 2021-10-19 | Closer with nail bin frame end part height-adjustable |
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| CN216090639U true CN216090639U (en) | 2022-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114533166A (en) * | 2022-03-30 | 2022-05-27 | 四川大学华西第二医院 | Closer with novel closed guide rail |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114533166A (en) * | 2022-03-30 | 2022-05-27 | 四川大学华西第二医院 | Closer with novel closed guide rail |
| CN114533166B (en) * | 2022-03-30 | 2023-09-22 | 四川大学华西第二医院 | Closer provided with novel closing guide rail |
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