CN219630317U - Infusion port positioning device - Google Patents

Infusion port positioning device Download PDF

Info

Publication number
CN219630317U
CN219630317U CN202223036093.2U CN202223036093U CN219630317U CN 219630317 U CN219630317 U CN 219630317U CN 202223036093 U CN202223036093 U CN 202223036093U CN 219630317 U CN219630317 U CN 219630317U
Authority
CN
China
Prior art keywords
groove
fixed part
fixing part
movable
positioning device
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
Application number
CN202223036093.2U
Other languages
Chinese (zh)
Inventor
马光昕
卢菲
石姗姗
于晓宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qilu Hospital of Shandong University
Original Assignee
Qilu Hospital of Shandong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qilu Hospital of Shandong University filed Critical Qilu Hospital of Shandong University
Priority to CN202223036093.2U priority Critical patent/CN219630317U/en
Application granted granted Critical
Publication of CN219630317U publication Critical patent/CN219630317U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The utility model belongs to the technical field of medical instrument application, and particularly discloses an infusion port positioning device which comprises a fixed part, a movable fixed part, a plurality of positioning sheets, a fixed part through groove, a fixed part connecting block, a movable fixed part U-shaped groove, a movable fixed part connecting block, a movable fixed part through groove, a movable fixed part groove, a transverse screw hole, a transverse adjusting screw rod, an arc clamping part, a transition part and a circular limiting sleeve. The utility model has the beneficial effects that: the whole device is of a combined split type structure design, is convenient to assemble and use, and simultaneously, the position of the arc clamping part is stably adjusted in the horizontal direction through a transverse adjusting screw rod and the like, so that nursing staff can conveniently control the infusion contact pin to be inserted into the infusion port; the fixing part, the plurality of locating pieces, the fixing part through groove and the fixing part groove are made of flexible materials which are integrally formed, and are tightly attached to the outer layer of the transfusion port after being attached by the medical adhesive tape; the fixed part connecting block and the movable fixed part connecting block which are matched for use are convenient to assemble and use.

Description

Infusion port positioning device
Technical Field
The utility model belongs to the technical field of medical instrument application, and particularly relates to an infusion port positioning device.
Background
The closed transfusion device with the transfusion port fully implanted into the human body comprises a catheter part with the tip end positioned in the superior vena cava and an injection seat implanted under the skin, and is a medical instrument.
The intravenous transfusion port is a new transfusion line technology, is called transfusion port for short, is a fully implanted closed transfusion system embedded in human body, and includes one central venous catheter, one device called puncture seat connected to the end of the catheter, one small operation method to puncture the catheter into great vein of human body, such as subclavian vein and superior vena cava, one part of the catheter is buried in subcutaneous tissue, the other end of the puncture seat is remained in subcutaneous tissue of chest wall and is sewn and fixed, the skin after operation has only seen a small suture wound, after healing and stitch removal, the body surface of the patient can touch one protruding ball, during treatment, the needle is positioned downwards, the needle is punctured through skin and vertically enters into the liquid storage tank of the puncture seat, so that the infusion can be conveniently performed, the infusion and blood collection can be continuously performed for a long time, and the infusion method is suitable for high-concentration chemotherapeutic medicine, complete parenteral nutrition and blood product infusion.
The following problems exist in the process of puncturing the transfusion port by the existing medical staff: (1) because the transfusion port has certain mobility, an operator is required to fix the transfusion port by using a non-dominant hand, the stability is poor, and meanwhile, in the puncturing process, the needle head is easy to puncture the fingers of medical staff because the puncture diameter of the transfusion port is smaller; (2) the medical staff cannot accurately position the puncture point of the transfusion port, and the patient can bleed after puncture of the wound without the needle during chemotherapy when the wound is not healed, so that the workload of nurses is increased; (3) repeated puncture also brings pain to patients, and the condition that the liquid medicine extravasation occurs.
Based on the above problems, the present utility model provides a positioning device for an infusion port.
Disclosure of Invention
The utility model aims to: the utility model aims to overcome the defects of the prior art, provides an infusion port positioning device, and solves the problems existing in the prior art when the conventional infusion port is used.
The technical scheme is as follows: the utility model provides an infusion port positioning device which comprises a fixed part and a movable fixed part, wherein a plurality of positioning sheets are arranged on the outer wall of the fixed part, a fixed part through groove is formed in the fixed part, a fixed part groove is formed in one surface of the fixed part, a fixed part connecting block is arranged in one surface of the fixed part groove, a movable fixed part U-shaped groove is formed in one surface of the movable fixed part, a movable fixed part connecting block matched with the fixed part connecting block is arranged in the movable fixed part U-shaped groove, a movable fixed part through groove is formed in the movable fixed part, a movable fixed part groove is formed in one surface of the movable fixed part, transverse screw holes are symmetrically formed in one surface of the movable fixed part, transverse adjusting screws are arranged in the transverse screw holes, arc-shaped parts are symmetrically arranged in the movable fixed part grooves, transition parts are respectively arranged on the outer wall of the arc-shaped clamping parts, and one end of the transition parts is provided with a circular limiting sleeve; wherein, horizontal adjusting screw blocks into circular stop collar.
According to the technical scheme, the transfusion port positioning device further comprises a first adhesive layer arranged on one surface of the groove of the fixed part.
According to the technical scheme, the transfusion port positioning device further comprises a second adhesive layer arranged on one surface of the U-shaped groove of the movable fixing part.
According to the technical scheme, the transfusion port positioning device further comprises strip-shaped guide grooves symmetrically arranged in one face of the groove of the movable fixing part, and strip-shaped sliding blocks which are respectively arranged on the outer wall of one end of the transition part and clamped into the strip-shaped guide grooves.
According to the technical scheme, the transfusion port positioning device further comprises a flexible cushion layer arranged on the lower portion of the inner wall of the opposite face of the arc-shaped clamping part.
According to the technical scheme, the transfusion port positioning device further comprises a first cross rod, a second cross rod, a first arc-shaped transition part, a second arc-shaped transition part and transverse hollow limiting sleeves and transverse limiting convex columns, wherein the first cross rod and the second cross rod are arranged on the upper portion of the inner wall of the opposite surface of the arc-shaped clamping part, the first arc-shaped transition part and the second arc-shaped transition part are respectively arranged at one end of the first cross rod and one end of the second cross rod, and the transverse hollow limiting sleeves and the transverse limiting convex columns are respectively arranged at the two end faces of the first arc-shaped transition part and the two end faces of the second arc-shaped transition part and are matched for use.
According to the technical scheme, the fixed part connecting block and the movable fixed part connecting block are respectively arranged into round structures.
According to the technical scheme, the diameter size of the fixed part is larger than that of the movable fixed part.
Compared with the prior art, the infusion port positioning device has the beneficial effects that: 1. the whole device is of a combined split type structure design, is convenient to assemble and use, and simultaneously, the position of the arc clamping part is stably adjusted in the horizontal direction through a transverse adjusting screw rod and the like, so that nursing staff can conveniently control the infusion contact pin to be inserted into the infusion port; 2. the fixing part, the plurality of locating pieces, the fixing part through groove and the fixing part groove are made of flexible materials which are integrally formed, and are tightly attached to the outer layer of the transfusion port after being attached by the medical adhesive tape; 3. the fixed part connecting block and the movable fixed part connecting block which are matched for use are convenient to assemble and use; 4. the first cross rod, the second cross rod, the first arc transition part, the second arc transition part, the transverse hollow limit sleeve and the transverse limit convex column are added, a horizontal limit cavity is formed during use, and nursing staff can accurately insert the infusion needle through the limit cavity; 5. the added flexible cushion layer plays roles in isolation and protection, and when the arc clamping part is positioned on the outer layer of the transfusion port, the extrusion damage to the skin is avoided, and the comfort of a patient is improved.
Drawings
In order to more clearly describe the embodiments of the present utility model or the technical solutions in the prior art, the following will be made
The drawings that are required for the embodiments are briefly described, and it is apparent that the drawings in the following description are merely some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort to those of ordinary skill in the art.
FIG. 1 is a schematic view showing the front view of a positioning device for an infusion port according to the present utility model;
FIG. 2 is a schematic top view of a fixing portion, a plurality of positioning pieces, a fixing portion through groove and a fixing portion groove of a positioning device for an infusion port according to the present utility model;
FIG. 3 is a schematic bottom view of a movable fixing part, a movable fixing part groove, a movable fixing part connecting block and a movable fixing part through groove of the positioning device for an infusion port;
FIG. 4 is a schematic top view of a movable fixing part, a cross screw hole, a bar-shaped guide groove, a movable fixing part groove and a movable fixing part through groove of the positioning device for an infusion port according to the present utility model;
FIG. 5 is a schematic top view of an arcuate clamping portion, flexible cushion, etc. of an infusion port positioning device of the present utility model;
FIG. 6 is a schematic top view of an arc clamping portion, a flexible cushion, a first cross bar, a second cross bar, a first arc transition portion, a second arc transition portion, a lateral hollow stop collar, a lateral stop stud, etc. of an infusion port positioning device according to the present utility model;
wherein, the reference numerals in the figures are as follows: the device comprises a 10-fixed part, a 11-positioning sheet, a 12-fixed part through groove, a 13-fixed part groove, a 14-first adhesive layer, a 15-fixed part connecting block, a 16-movable fixed part, a 17-movable fixed part U-shaped groove, a 18-second adhesive layer, a 19-movable fixed part connecting block, a 20-transverse screw hole, a 21-transverse adjusting screw, a 22-strip-shaped guide groove, a 23-strip-shaped slide block, a 24-transition part, a 25-round limit sleeve, a 26-arc clamping part, a 27-flexible cushion layer, a 28-first cross rod, a 29-second cross rod, a 30-first arc transition part, a 31-second arc transition part, a 32-transverse hollow limit sleeve, a 33-transverse limit convex column, a 34-movable fixed part through groove, a 35-transfusion pin and a 36-movable fixed part groove.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "rear", "middle", "inner", "top", "and" are used to describe the present utility model as follows "
The orientation or positional relationship indicated by the "bottom end" or the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
An infusion port positioning device as shown in fig. 1, 2, 3 and 4 comprises a fixed part 10 and a movable fixed part 16,
the outer wall of the fixed part 10 is provided with a plurality of positioning pieces 11,
a fixed part through groove 12 is arranged in the fixed part 10,
a fixing portion groove 13 is provided in one surface of the fixing portion 10,
a fixed part connecting block 15 is arranged in one surface of the fixed part groove 13,
one side of the movable fixing part 16 is provided with a U-shaped groove 17 of the movable fixing part,
a movable fixing part connecting block 19 which is arranged in the U-shaped groove 17 of the movable fixing part and is matched with the fixed fixing part connecting block 15,
a movable fixing portion through groove 34 is provided in the movable fixing portion 16,
one side of the movable fixing portion 16 is provided with a movable fixing portion groove 36,
one surface of the movable fixing portion 16 is symmetrically provided with transverse screw holes 20,
a transverse adjusting screw 21 is arranged in the transverse screw hole 20,
the movable fixing part groove 36 is internally and symmetrically provided with an arc-shaped clamping part 26,
the outer walls of the arcuate clamping portions 26 are each provided with a transition portion 24,
one end of the transition part 24 is provided with a circular limit sleeve 25;
wherein the transverse adjusting screw 21 is clamped into the circular limiting sleeve 25.
Example two
On the basis of the first embodiment, the transfusion port positioning device further comprises a first adhesive layer 14 arranged on one surface of the fixed part groove 13;
wherein, fixed part connecting block 15 sets up at fixed part recess 13 surface through first viscose layer 14.
Example III
The transfusion port positioning device based on the first embodiment or the second embodiment further comprises a second adhesive layer 18 arranged on one surface of the U-shaped groove 17 of the movable fixing part;
wherein, the movable fixing part connecting block 19 is arranged on the surface of the movable fixing part U-shaped groove 17 through the second adhesive layer 18.
Example IV
On the basis of the first embodiment, the second embodiment or the third embodiment, the positioning device for the transfusion port further comprises a bar-shaped guide groove 22 symmetrically arranged in one surface of the movable fixing part groove 36, and a bar-shaped sliding block 23 respectively arranged on the outer wall of one end of the transition part 24 and clamped into the bar-shaped guide groove 22;
wherein the transition 24 is provided in a circular configuration.
Example five
On the basis of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment, the transfusion port positioning device further comprises a flexible cushion layer 27 arranged at the lower part of the inner wall of the opposite surface of the arc-shaped clamping part 26;
wherein the flexible cushion layer 27 has an arc-shaped structure, and the height dimension of the flexible cushion layer 27 is half of the height dimension of the arc-shaped clamping part 26.
Example six
On the basis of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment or the fifth embodiment, the positioning device for the transfusion port as shown in fig. 5 and 6 further comprises a first cross rod 28 and a second cross rod 29 which are arranged at the upper parts of the inner walls of the opposite surfaces of the arc clamping part 26, a first arc transition part 30 and a second arc transition part 31 which are respectively arranged at one end of the first cross rod 28 and one end of the second cross rod 29, and a transverse hollow limit sleeve 32 and a transverse limit convex column 33 which are respectively arranged at the two end surfaces of the first arc transition part 30 and the second arc transition part 31 and are matched for use;
the first cross bar 28, the first arc-shaped transition portion 30 and the transverse hollow limit sleeve 32 are made of integrally formed flexible materials, and the second cross bar 29, the second arc-shaped transition portion 31 and the transverse limit boss 33 are made of integrally formed flexible materials.
In addition, in the above embodiment, it is preferable that the fixed part connecting block 15 and the movable part connecting block 19 are respectively provided in a circular structure;
wherein, the fixed part connecting block 15 and the movable part connecting block 19 are hook-and-loop fasteners or magnets which are matched for use.
In addition, in the above embodiment, it is preferable that the diameter size of the fixed portion 10 is larger than the diameter size of the movable fixed portion 16;
the fixing portion 10, the plurality of positioning pieces 11, the fixing portion through groove 12 and the fixing portion groove 13 are made of integrally formed flexible materials, and the fixing portion 10 is adhered and fixed by the plurality of positioning pieces 11 through medical adhesive tapes.
The transfusion port positioning device of the structure has the working principle or the structural principle that:
(1) Firstly, the movable fixing part 16 and the fixed fixing part 10 are fixedly assembled through the fixed fixing part connecting block 15 and the movable fixing part connecting block 19;
(2) Then, the fixing part 10 is stuck and fixed on the outer layer of the transfusion port position by a plurality of positioning sheets 11 through medical adhesive tapes;
(3) Finally, the arc-shaped clamping part 26 is placed in the movable fixing part through groove 34, the transverse adjusting screw 21 is synchronously rotated, and the transverse adjusting screw 21 pushes the arc-shaped clamping part 26 to move horizontally relatively through the circular limiting sleeve 25 and the transition part 24 until the flexible cushion layer 27 is in contact with the outer layer of the transfusion port.
In addition, after the flexible cushion layer 27 on the inner wall of the arc clamping part 26 contacts with the outer layer at the transfusion port, the first arc transition part 30 at one end of the first cross rod 28 is attached to the second arc transition part 31 at one end of the second cross rod 29, so that the transverse cavity formed by the first arc transition part 30 and the second arc transition part 31 is located at the position right above the transfusion port, and the transfusion contact pin 35 is limited.
In addition, the horizontal limit posts 33 are embedded into the horizontal hollow limit sleeve 32 to limit the first arc-shaped transition part 30 and the second arc-shaped transition part 31 which are tightly attached.
In addition, the diameters of the fixed part connecting block 15 and the movable part connecting block 19 are the same and smaller than the diameters of the movable part U-shaped grooves 17, and the fixed part connecting block 15 and the movable part connecting block 19 are positioned in the movable part U-shaped grooves 17 (anti-falling) after assembly.
It should be noted that in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. An infusion port positioning device which is characterized in that: comprises a fixed fixing part (10) and a movable fixing part (16),
the outer wall of the fixed part (10) is provided with a plurality of positioning sheets (11),
a fixed part through groove (12) is arranged in the fixed part (10),
a fixed part groove (13) is arranged in one surface of the fixed part (10),
a fixed part connecting block (15) is arranged in one surface of the fixed part groove (13),
one surface of the movable fixing part (16) is provided with a U-shaped groove (17) of the movable fixing part,
a movable fixing part connecting block (19) which is arranged in the U-shaped groove (17) of the movable fixing part and is matched with the fixed fixing part connecting block (15),
a movable fixing part through groove (34) is arranged in the movable fixing part (16),
a movable fixing part groove (36) is arranged on one surface of the movable fixing part (16),
one surface of the movable fixing part (16) is symmetrically provided with transverse screw holes (20),
a transverse adjusting screw rod (21) is arranged in the transverse screw hole (20),
arc clamping parts (26) are symmetrically arranged in the movable fixing part grooves (36),
the outer wall of the arc-shaped clamping part (26) is respectively provided with a transition part (24),
one end of the transition part (24) is provided with a circular limit sleeve (25);
wherein, the horizontal adjusting screw rod (21) is clamped into the circular limiting sleeve (25).
2. The port positioning device of claim 1, wherein: the transfusion port positioning device further comprises a first adhesive layer (14) arranged on one surface of the fixed part groove (13).
3. The port positioning device of claim 2, wherein: the device also comprises a second adhesive layer (18) arranged on one side of the U-shaped groove (17) of the movable fixing part.
4. A port positioning device according to claim 3, wherein: the device also comprises a strip-shaped guide groove (22) symmetrically arranged in one surface of the movable fixing part groove (36), and strip-shaped sliding blocks (23) respectively arranged on the outer wall of one end of the transition part (24) and clamped into the strip-shaped guide groove (22).
5. The port positioning device of claim 4, wherein: the flexible cushion layer (27) is arranged at the lower part of the inner wall of the opposite surface of the arc-shaped clamping part (26).
6. The port positioning device of claim 5, wherein: the novel clamping device is characterized by further comprising a first cross rod (28) and a second cross rod (29) which are arranged on the upper parts of the inner walls of the opposite faces of the arc clamping parts (26), a first arc transition part (30) and a second arc transition part (31) which are respectively arranged at one ends of the first cross rod (28) and the second cross rod (29), and two end faces which are respectively arranged at the two ends of the first arc transition part (30) and the second arc transition part (31), and a transverse hollow limit sleeve (32) and a transverse limit convex column (33) which are matched for use.
7. The port positioning device of claim 1, wherein: the fixed part connecting block (15) and the movable part connecting block (19) are respectively arranged in a circular structure.
8. The port positioning device of any one of claims 1-7, wherein: the diameter of the fixed part (10) is larger than that of the movable part (16).
CN202223036093.2U 2022-11-15 2022-11-15 Infusion port positioning device Active CN219630317U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223036093.2U CN219630317U (en) 2022-11-15 2022-11-15 Infusion port positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223036093.2U CN219630317U (en) 2022-11-15 2022-11-15 Infusion port positioning device

Publications (1)

Publication Number Publication Date
CN219630317U true CN219630317U (en) 2023-09-05

Family

ID=87808262

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223036093.2U Active CN219630317U (en) 2022-11-15 2022-11-15 Infusion port positioning device

Country Status (1)

Country Link
CN (1) CN219630317U (en)

Similar Documents

Publication Publication Date Title
CN219630317U (en) Infusion port positioning device
CN116115860A (en) Infusion port positioning device and working method thereof
CN113288356A (en) Central venous puncture device
CN211863493U (en) Syringe is used in division of endocrinology's nursing
CN215309239U (en) Central venous puncture device
CN213722305U (en) Intracardiac branch of academic or vocational study puncture positioner
CN221888884U (en) Infusion port puncture fixer
CN209695328U (en) Disposable retraction puncture injection needle is used under a kind of hysteroscope
CN216319222U (en) Infusion port injection seat fixer
CN209595862U (en) A kind of Pain Management anesthetic care device
CN220989339U (en) Fixing device for intravenous infusion port contact pin
CN215995097U (en) Medicine guiding device for tumor radiotherapy and chemotherapy
CN221470572U (en) Closed light-proof indwelling needle
CN215272914U (en) Improvement type children's waist is threaded storage device for needle
CN218961460U (en) Infusion port puncture fixer
CN215018567U (en) Combined anesthesia kit for lumbar vertebrae
CN219814885U (en) Submerged tunnel indwelling needle for subcutaneous embedding
CN205698690U (en) A kind of application venous port access pulls out pin anti-pricking wound holder
CN211066919U (en) Tumor puncture device
CN217908510U (en) Needle is kept somewhere to disconnect-type
CN221692316U (en) Positioning structure for puncture of transfusion harbor
CN221106615U (en) Venous indwelling needle convenient to use
CN114041858B (en) Disposable puncture needle
CN221731899U (en) Oncology nurse transfusion harbor central point positioner
CN215537314U (en) Needle fixing device is kept somewhere in adjustable paediatrics nursing

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant