CN213218089U - Cervical support - Google Patents
Cervical support Download PDFInfo
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- CN213218089U CN213218089U CN202021788502.2U CN202021788502U CN213218089U CN 213218089 U CN213218089 U CN 213218089U CN 202021788502 U CN202021788502 U CN 202021788502U CN 213218089 U CN213218089 U CN 213218089U
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Abstract
A cervical support relates to the technical field of medical instruments and comprises a top surface, a bottom surface, a side wall and a cavity; the side wall connects the top surface and the bottom surface; the top surface is provided with a top opening communicated with the cavity; the bottom surface is provided with a bottom opening communicated with the cavity; the diameter of the top opening is smaller than the diameter of the bottom opening; the side wall comprises a front end part, a left end part, a rear end part and a right end part which are connected in sequence; the peripheral surfaces of the front end part and the rear end part are both planes, and the peripheral surface of the front end part is parallel to the peripheral surface of the rear end part; the outer peripheral surfaces of the left end part and the right end part are both curved surfaces. An object of the utility model is to provide a cervical support to solve oppression bladder, the difficult and inconvenient technical problem of clinical installation of vaginal secretion drainage that exist among the prior art to a certain extent.
Description
Technical Field
The utility model relates to the technical field of medical equipment, particularly, relate to a cervical support.
Background
The cervical collar, also known as pessary, is a medical appliance used for treating abortion and premature delivery caused by cervical shortening during pregnancy or cervical insufficiency, and belongs to an economic, simple, safe and effective product.
However, the existing cervical collar has the problem that the urinary bladder and vaginal secretion are difficult to flow out due to the morphological stress; in addition, during clinical installation, the existing cervical support is not easy to hold and slip easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cervical support to solve oppression bladder, the difficult and inconvenient technical problem of clinical installation of vaginal secretion drainage that exist among the prior art to a certain extent.
In order to achieve the above object, the present invention provides the following technical solutions:
a cervical holder comprising a top surface, a bottom surface, a side wall, and a chamber; the side wall connects the top surface and the bottom surface;
the top surface is provided with a top opening communicated with the cavity; the bottom surface is provided with a bottom opening communicated with the cavity; the diameter of the top opening is smaller than the diameter of the bottom opening;
the side wall comprises a front end part, a left end part, a rear end part and a right end part which are connected in sequence; the peripheral surfaces of the front end part and the rear end part are both planes, and the peripheral surface of the front end part is parallel to the peripheral surface of the rear end part; the outer peripheral surfaces of the left end part and the right end part are both curved surfaces.
In any of the above technical solutions, optionally, a front notch is provided at the bottom of the front end portion; the front gap is respectively communicated with the chamber and the bottom opening.
In any of the above technical solutions, optionally, at least one rib is disposed on the outer circumferential surfaces of the left end portion and the right end portion; the ribs extend in the circumferential direction of the side wall.
In any of the above technical solutions, optionally, at least one rib is disposed on the outer circumferential surfaces of the front end portion and the rear end portion; the corresponding convex ribs of the front end part, the left end part, the rear end part and the right end part can be connected in a surrounding way.
In any of the above technical solutions, optionally, the number of the ribs is multiple;
and the plurality of convex ribs are sequentially arranged at intervals from the top surface to the bottom surface.
In any of the above technical solutions, optionally, the top surface and/or the side wall is provided with a secretion hole communicating with the cavity.
In any of the above technical solutions, optionally, the top surface and the outer peripheral surface of the side wall are in smooth transition; the secretion hole is arranged in the transition area between the top surface and the peripheral surface of the side wall;
and/or the left end part and the right end part are both provided with the secretion hole.
In any of the above technical solutions, optionally, the wall thickness of each of the left end portion and the right end portion is greater than the wall thickness of the front end portion, and the wall thickness of each of the left end portion and the right end portion is greater than the wall thickness of the rear end portion;
the wall thickness of the left end part and the right end part ranges from 5mm to 7 mm; the wall thickness of the front end part and the wall thickness of the rear end part both range from 3.5mm to 4.5 mm;
the distance range of the front gap from the bottom surface is 2.5mm-3.5 mm.
In any of the above technical solutions, optionally, the wall thickness of each of the left end portion and the right end portion is 6 mm; the wall thickness of the front end part and the wall thickness of the rear end part are respectively 4 mm;
the central angles corresponding to the left end part and the right end part are both 120 degrees; the central angles corresponding to the front end part and the rear end part are both 60 degrees;
the distance between the front notch and the bottom surface is 3 mm.
In any of the above technical solutions, optionally, the cervical collar is made of silicon rubber, silicon-fluorine rubber, ethylene propylene rubber, polyurethane, polyhydroxyethyl methacrylate, polyethylene, polypropylene, or polytetrafluoroethylene.
The beneficial effects of the utility model mainly lie in:
the utility model provides a cervical support, including top surface, bottom surface, lateral wall and cavity, the bladder is located the front end of lateral wall when wearing, the rectum is located the rear end of lateral wall, its shape more accords with vagina and pelvic floor muscle anatomical structure characteristic, has reduced the uncomfortable of patient's dress to a certain extent, has reduced the stimulation to the vagina; the vaginal secretion can be ensured to flow out smoothly to a certain extent through the top opening of the top surface, the cavity and the bottom opening of the bottom surface, and the risk of infection caused by the secretion is reduced; the outer peripheral face of the front end portion and the outer peripheral face of the rear end portion of the side wall are both planes, the outer peripheral face of the front end portion is parallel to the outer peripheral face of the rear end portion, the outer peripheral faces of the left end portion and the right end portion are both curved faces, so that oppression and stimulation to the bladder are reduced to a certain degree, the front end portion and the rear end portion are clamped to the cervical support conveniently, the cervical support is greatly convenient to hold during clinical installation, and the probability of slippage of the cervical support is reduced.
In order to make the aforementioned and other objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a first structure of a cervical collar according to an embodiment of the present invention;
fig. 2 is a second structural schematic view of a cervical collar provided in an embodiment of the present invention;
fig. 3 is a schematic view of a third structure of the cervical collar according to the embodiment of the present invention.
Icon: 100-a bottom surface; 200-top surface; 300-side wall; 310-a front end; 311-anterior notch; 320-left end portion; 330-rear end; 340-right end portion; 350-convex ribs; 400-a chamber; 500-secretion pore.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Examples
The present embodiment provides a cervical holder; referring to fig. 1-3, fig. 1-3 are schematic views of three structures of a cervical collar provided in an embodiment of the present invention; in which fig. 1 and 2 show a perspective view of the cervical collar and fig. 3 shows a front view of the cervical collar.
Referring to fig. 1-3, the cervical holder includes a top surface 200, a bottom surface 100, a side wall 300, and a chamber 400; the sidewall 300 connects the top surface 200 and the bottom surface 100.
The top surface 200 is provided with a top opening communicating with the chamber 400; the bottom surface 100 is provided with a bottom opening communicating with the chamber 400; the diameter of the top opening is smaller than that of the bottom opening; through the top opening of the top surface 200, the bottom opening of the chamber 400 and the bottom surface 100, vaginal secretion can be ensured to flow out smoothly, and the risk of infection caused by the secretion is reduced. The diameter of the top opening is smaller than that of the bottom opening, so that the cervical support can be better matched with the cervix, and a good supporting effect is achieved.
The sidewall 300 includes a front end 310, a left end 320, a rear end 330, and a right end 340 connected in sequence; the outer peripheral surfaces of the front end part 310 and the rear end part 330 are both flat surfaces, and the outer peripheral surface of the front end part 310 is parallel to the outer peripheral surface of the rear end part 330; the outer peripheral surfaces of the left end portion 320 and the right end portion 340 are both curved surfaces. Alternatively, the outer peripheral surfaces of the left end portion 320 and the right end portion 340 are both arc surfaces.
The cervical collar in this embodiment comprises a top surface 200, a bottom surface 100, a side wall 300 and a cavity 400, wherein when the cervical collar is worn, the bladder is positioned at the front end part 310 of the side wall 300, and the rectum is positioned at the rear end part 330 of the side wall 300, and the shape of the cervical collar is more suitable for the anatomical features of the vagina and pelvic floor muscles, so that the uncomfortable feeling of wearing of a patient is reduced to a certain extent, and the stimulation to the vagina is reduced; through the top opening of top surface 200, the bottom opening of cavity 400 and bottom surface 100, guarantee to a certain extent that vaginal secretion can flow out smoothly, reduced the risk that the secretion leads to the infection. The outer peripheral surfaces of the front end part 310 and the rear end part 330 of the side wall 300 are both planes, the outer peripheral surface of the front end part 310 is parallel to that of the rear end part 330, and the outer peripheral surfaces of the left end part 320 and the right end part 340 are both curved surfaces, so that the compression and stimulation to the bladder are reduced to a certain extent, the cervical holder is clamped conveniently by clamping the front end part 310 and the rear end part 330, the cervical holder is greatly convenient to hold during clinical installation, and the slippage probability of the cervical holder is reduced.
In the cervical collar in this embodiment, the outer peripheral surface of the front end 310 of the side wall 300 is parallel to the outer peripheral surface of the rear end 330, and the outer peripheral surfaces of the left end 320 and the right end 340 are both curved surfaces, so the structural shape of the cervical collar better conforms to Chinese women; when the patient wears the device, the left end 320 and the right end 340 of the sidewall 300 bear large force, so that the force applied to the front end 310 is reduced, the anatomical feature of the force applied to the vagina is better met, the pressure stimulation to the bladder is greatly reduced, and the pressure stimulation to the rectum is also reduced.
Referring to fig. 1-3, in an alternative embodiment, the bottom of the front end 310 of the sidewall 300 is provided with a front notch 311; the anterior notch 311 communicates with the chamber 400 and the bottom opening, respectively. Through the front notch 311, on one hand, the discharge of secretion is facilitated; on the other hand, after the cervical support is placed, the front notch 311 reduces the stress of the front end part 310 on the human body, further reduces the stimulation to the bladder, and meanwhile, relatively speaking, improves the stress of the left end part 320, the right end part 340 and the rear end part 330 on the human body, better conforms to the anatomical characteristics of different stresses of the front wall and the rear wall of the vagina, and further improves the wearing comfort of the patient.
Optionally, the anterior notch 311 is located a distance from the bottom surface 100 in the range of 2.5mm to 3.5 mm. For example, the anterior notch 311 may be spaced from the bottom surface 100 by a distance of 2.5mm, 2.8mm, 3.2mm, or 3.5mm, or other dimensions.
Optionally, the front notch 311 is located 3mm from the bottom surface 100.
Referring to fig. 1-3, in an alternative of the present embodiment, the outer circumferential surfaces of the left end portion 320 and the right end portion 340 of the sidewall 300 are each provided with at least one rib 350; that is, the outer circumferential surface of the left end portion 320 of the side wall 300 is provided with one or more ribs 350, and the outer circumferential surface of the right end portion 340 of the side wall 300 is provided with one or more ribs 350.
Optionally, the ribs 350 extend along the circumference of the sidewall 300. Through protruding muscle 350, the cervical support of being convenient for is held when laying and is got, has still improved the stability that the cervical support was laid in the human body to a certain extent, and the resistance of multiplicable cervical support up-and-down motion makes the cervical support be difficult to the slippage more. In addition, the structure of the rib 350 can mechanically enhance the strength of the whole cervical collar, and can also reduce the quality and the wall thickness of the whole cervical collar on the premise of keeping the strength of the cervical collar.
Referring to fig. 1-3, in an alternative of the present embodiment, the outer circumferential surfaces of the front end portion 310 and the rear end portion 330 of the sidewall 300 are each provided with at least one rib 350; that is, the outer circumferential surface of the front end portion 310 of the side wall 300 is provided with one or more ribs 350, and the outer circumferential surface of the rear end portion 330 of the side wall 300 is provided with one or more ribs 350. The strength of the cervical collar and the resistance to the movement of the cervical collar up and down are further improved by providing ribs 350 on the front and rear ends 310, 330 of the side walls 300.
Alternatively, the corresponding ribs 350 of the front end 310, the left end 320, the rear end 330, and the right end 340 can be encircled; i.e., the corresponding ribs 350 of the front end 310, the left end 320, the rear end 330, and the right end 340 can form a closed loop to further increase the strength of the cervical collar.
In an alternative of this embodiment, the number of the ribs 350 is plural; the plurality of ribs 350 are sequentially spaced apart from each other in a direction from the top surface 200 to the bottom surface 100. Through a plurality of protruding muscle 350 that the interval set up in proper order to holding of cervical support gets, with the resistance that improves cervical support up-and-down motion to a certain extent, and then improve the stability of laying in the human body of cervical support, reduce the probability of cervical support slippage, still improve the intensity of whole cervical support to a certain extent.
Alternatively, the number of ribs 350 is 2, 3, or other numbers.
Alternatively, the ribs 350 on the outer peripheral surfaces of the left end 320 and the right end 340 of the side wall 300 are the same in number and corresponding in position to the ribs 350 on the outer peripheral surfaces of the front end 310 and the rear end 330 of the side wall 300.
Referring to fig. 1-3, in an alternative to this embodiment, the top surface 200 and/or the sidewall 300 are provided with secretion holes 500 communicating with the chamber 400. That is, the top surface 200 is provided with the secretion hole 500 communicating with the chamber 400, or the side wall 300 is provided with the secretion hole 500 communicating with the chamber 400, or the top surface 200 and the side wall 300 are respectively provided with the secretion hole 500 communicating with the chamber 400. Through the secretion hole 500 to facilitate better discharge of the secretion.
Optionally, the top surface 200 and the side wall 300 are respectively provided with secretion holes 500 communicating with the chamber 400, so that the secretion accumulated on the top surface 200 is discharged through the secretion holes 500 of the top surface 200, and the secretion with higher side is discharged through the secretion holes 500 of the side wall 300.
Referring to fig. 1-3, in an alternative embodiment, the top surface 200 is smoothly transited to the outer peripheral surface of the sidewall 300; the transition area between the top surface 200 and the outer peripheral surface of the sidewall 300 is provided with a secretion hole 500. The transition area between the top surface 200 and the outer circumferential surface of the sidewall 300 is generally lower than the top surface 200, so that the secretion is more easily accumulated and can be discharged through the secretion hole 500.
Referring to fig. 1-3, in an alternative of the present embodiment, both the left end 320 and the right end 340 of the sidewall 300 are provided with secretion holes 500; the secretion liquid at the side higher position is discharged through the secretion liquid holes 500 of the left end portion 320 and the right end portion 340.
In an alternative of this embodiment, the wall thickness of the left end 320 and the right end 340 of the sidewall 300 is greater than the wall thickness of the front end 310, so as to reduce irritation to the bladder at the front end 310 and improve comfort of the patient wearing the cervical collar.
In an alternative of this embodiment, the wall thickness of the left end 320 and the right end 340 of the sidewall 300 is greater than the wall thickness of the rear end 330, so as to reduce irritation to the rectum at the rear end 330 and improve comfort of the patient wearing the cervical collar.
In an alternative of this embodiment, the wall thickness of the left end 320 and the right end 340 both range from 5mm to 7 mm; for example, the wall thickness of the left end 320 and the right end 340 may be 5mm, 5.5mm, 6.5mm, or 7mm, respectively, or other dimensions.
Alternatively, the wall thickness of each of the left end portion 320 and the right end portion 340 is 6 mm.
In an alternative of this embodiment, the wall thicknesses of the front end portion 310 and the rear end portion 330 both range from 3.5mm to 4.5 mm; for example, the wall thickness of the front and rear ends 310, 330 may be 3.5mm, 3.7mm, 4.2mm, or 4.5mm, respectively, or other dimensions.
Alternatively, the wall thickness of the front end portion 310 and the rear end portion 330 are each 4 mm.
Referring to fig. 1-3, in an alternative embodiment, the central angles of the left end 320 and the right end 340 are both 120 °.
Referring to fig. 1-3, in an alternative embodiment, the front end 310 and the rear end 330 each have a central angle of 60 °.
In an alternative embodiment, the cervical collar is made of silicone rubber, silicone-fluorine rubber, ethylene propylene rubber, polyurethane, polyhydroxyethylmethacrylate, polyethylene, polypropylene, polytetrafluoroethylene, or other materials.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims that follow, any of the claimed embodiments can be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (10)
1. A cervical holder, comprising a top surface, a bottom surface, a side wall, and a chamber; the side wall connects the top surface and the bottom surface;
the top surface is provided with a top opening communicated with the cavity; the bottom surface is provided with a bottom opening communicated with the cavity; the diameter of the top opening is smaller than the diameter of the bottom opening;
the side wall comprises a front end part, a left end part, a rear end part and a right end part which are connected in sequence; the peripheral surfaces of the front end part and the rear end part are both planes, and the peripheral surface of the front end part is parallel to the peripheral surface of the rear end part; the outer peripheral surfaces of the left end part and the right end part are both curved surfaces.
2. The cervical holder according to claim 1, wherein a bottom of the front end portion is provided with a front notch; the front gap is respectively communicated with the chamber and the bottom opening.
3. The cervical holder according to claim 1, wherein the outer peripheral surfaces of the left and right end portions are each provided with at least one rib; the ribs extend in the circumferential direction of the side wall.
4. A cervical collar according to claim 3, wherein the outer peripheral surfaces of the front and rear end portions are each provided with at least one rib; the corresponding convex ribs of the front end part, the left end part, the rear end part and the right end part can be connected in a surrounding way.
5. A cervical collar according to claim 3, wherein the number of ribs is plural;
and the plurality of convex ribs are sequentially arranged at intervals from the top surface to the bottom surface.
6. The cervical holder according to any of claims 1-5, wherein the top surface and/or the side wall is provided with a secretion hole communicating with the chamber.
7. The cervical holder according to claim 6, wherein the top surface is rounded to the outer peripheral surface of the side wall; the secretion hole is arranged in the transition area between the top surface and the peripheral surface of the side wall;
and/or the left end part and the right end part are both provided with the secretion hole.
8. The cervical holder of claim 2, wherein the wall thickness of each of the left and right end portions is greater than the wall thickness of the front end portion, and the wall thickness of each of the left and right end portions is greater than the wall thickness of the rear end portion;
the wall thickness of the left end part and the right end part ranges from 5mm to 7 mm; the wall thickness of the front end part and the wall thickness of the rear end part both range from 3.5mm to 4.5 mm;
the distance range of the front gap from the bottom surface is 2.5mm-3.5 mm.
9. The cervical collar of claim 8, wherein the wall thickness of the left end and the right end are each 6 mm; the wall thickness of the front end part and the wall thickness of the rear end part are respectively 4 mm;
the central angles corresponding to the left end part and the right end part are both 120 degrees; the central angles corresponding to the front end part and the rear end part are both 60 degrees;
the distance between the front notch and the bottom surface is 3 mm.
10. The cervical holder according to any of claims 1-5, wherein the material of the cervical holder is silicone rubber, silicone-fluorine rubber, ethylene propylene rubber, polyurethane, polyhydroxyethylmethacrylate, polyethylene, polypropylene or polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788502.2U CN213218089U (en) | 2020-08-24 | 2020-08-24 | Cervical support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788502.2U CN213218089U (en) | 2020-08-24 | 2020-08-24 | Cervical support |
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| Publication Number | Publication Date |
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| CN213218089U true CN213218089U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021788502.2U Active CN213218089U (en) | 2020-08-24 | 2020-08-24 | Cervical support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413147A (en) * | 2021-06-24 | 2021-09-21 | 北京大学第三医院（北京大学第三临床医学院） | Cervical pressure detection device and cervical pressure evaluation method and system |
-
2020
- 2020-08-24 CN CN202021788502.2U patent/CN213218089U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413147A (en) * | 2021-06-24 | 2021-09-21 | 北京大学第三医院（北京大学第三临床医学院） | Cervical pressure detection device and cervical pressure evaluation method and system |
| CN113413147B (en) * | 2021-06-24 | 2023-01-10 | 北京大学第三医院（北京大学第三临床医学院） | Cervical pressure detection device and cervical pressure evaluation method and system |
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Effective date of registration: 20220421 Address after: 101100 305-b27, block B, NO.560, Luyuan South Street, Tongzhou District, Beijing Patentee after: Beijing Medical and health Lianzhong Technology Co.,Ltd. Address before: No. 49 Huayuan North Road, Haidian District, Beijing 100000 Patentee before: PEKING University THIRD HOSPITAL (PEKING UNIVERSITY THIRD CLINICAL MEDICAL College) |
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Effective date of registration: 20220520 Address after: 1225-94, 12th floor, No. 18, Zhongguancun Street, Haidian District, Beijing 100044 Patentee after: Beijing Yida Sichuang Pharmaceutical Technology Co.,Ltd. Address before: 101100 305-b27, block B, NO.560, Luyuan South Street, Tongzhou District, Beijing Patentee before: Beijing Medical and health Lianzhong Technology Co.,Ltd. |