CN108014415B - Large-pitch anti-torsion guide pipe joint - Google Patents
Large-pitch anti-torsion guide pipe joint Download PDFInfo
- Publication number
- CN108014415B CN108014415B CN201810058523.XA CN201810058523A CN108014415B CN 108014415 B CN108014415 B CN 108014415B CN 201810058523 A CN201810058523 A CN 201810058523A CN 108014415 B CN108014415 B CN 108014415B
- Authority
- CN
- China
- Prior art keywords
- elastic piece
- cannula
- assembly
- assembly end
- inner cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001802 infusion Methods 0.000 claims abstract description 6
- 239000002861 polymer material Substances 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 4
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 8
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/1055—Rotating or swivel joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1038—Union screw connectors, e.g. hollow screw or sleeve having external threads
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a large-pitch anti-kink conduit joint, which comprises a conduit joint; the catheter connector consists of an assembly end, a cannula end and an elastic piece; the cannula end is formed by integrally injection molding an ABS and TPU mixed modified high polymer material; the side of the assembly end, which is away from the cannula end, is provided with a luer connector for connecting with an infusion appliance; the outer surface of one side of the assembly end, which is close to the cannula end, is provided with an external thread, and the end part of the assembly end is provided with a first inner cavity for accommodating the elastic piece; the inner side of the cannula end is provided with a second inner cavity for accommodating the elastic piece, and the inner side wall of the second inner cavity is provided with internal threads; the bottom of the inner side of the cannula end is provided with an inner bulge for extruding the elastic piece; the centers of the assembly end, the cannula end and the elastic piece are provided with mutually communicated through holes; the large-pitch anti-twisting pipe joint is convenient to screw, effectively reduces the problem of falling off and liquid leakage, and prevents an elastic piece from twisting during locking.
Description
Technical Field
The invention relates to the technical field of medical anesthesia apparatuses, in particular to a large-pitch anti-kink catheter connector.
Background
Along with the popularization of the minimally invasive manipulation treatment application, the microcatheter becomes a medical instrument widely applied in clinic and has the advantages of small wound, quick recovery, less pain for patients, long-term use after once placement and the like; because the micro-catheter is very small in size and cannot be directly connected with an infusion device, the infusion of the liquid medicine is realized by connecting a catheter connector, and the catheter connector is firmly locked and sealed with a catheter and is convenient to operate; when the insertion tube end and the assembly end are screwed tightly through threads, the elastic piece is extruded and contracted by the inner bulge of the insertion tube end, so that the micro-catheter inserted into the elastic piece is locked, the inner bulge of the insertion tube end and the elastic piece are rotationally worn in the rotary extrusion process, the traditional catheter connector is in standard small-pitch fit, the number of turns required for locking is large, the traditional catheter connector is made of high polymer materials such as ABS (Acrylonitrile butadiene styrene), and the like, the inner bulge of the insertion tube end and the elastic piece are twisted together during screwing, the elastic piece is driven to twist, the locking of the catheter is unfavorable, the problems that the locking force after connection does not meet the standard, the sealing performance is poor, liquid leakage and the like often occur, and in addition, even if the traditional connector is made of transparent materials, the visible catheter insertion position can not be realized due to structural limitation; the material used for the cannula end of the invention is ABS and TPU mixed modified polymer material, and the mixing proportion is 96: 4-76: 24, the friction force between the modified ABS material product and the elastic piece is small, the modified ABS material product cannot be twisted, and the locking effect is good; solves the technical problems that the connection firmness of the anesthesia catheter and the connector in the prior art can not be clearly judged, the leakage of the catheter is easy to cause, the insertion position of the catheter connector can not be directly seen or deformed, and the like.
Disclosure of Invention
The invention provides a large-pitch anti-twisting conduit joint, which is used for solving the problem that the connection firmness of the conduit joint and a micro-conduit is difficult to judge in the prior art; the pipe joint is convenient to screw, the insertion position of the pipe joint can be directly seen, the adverse events of falling and liquid leakage are effectively reduced, and the elastic piece cannot be twisted during locking.
In order to solve the technical problems, the invention provides a large-pitch anti-twisting conduit joint, which comprises a conduit joint, wherein the conduit joint comprises an assembly end, a cannula end and an elastic piece arranged between the assembly end and the cannula end through threaded connection, and the cannula end is formed by mixing the components with the ratio of 96: 4-76: 24, the one side that the assembly end deviates from the cannula end is provided with the luer that is used for being connected with infusion utensil, the surface that the assembly end is close to cannula end one side is provided with the external screw thread, the first inner chamber that is used for holding the elastic component is offered to the one end that assembly end and cannula end are connected, the inboard of cannula end offer the second inner chamber that is used for holding the elastic component, the inside wall of second inner chamber be provided with the internal screw thread, cannula end inboard bottom be provided with the inside arch that is used for extrudeing the elastic component, the first inner chamber of assembly end is arranged in to the one end of elastic component, the second inner chamber of cannula end is arranged in to the other end of elastic component, the tip and the protruding laminating of inside of elastic component, assembly end, cannula end and elastic component center be equipped with the through-hole of intercommunicating, cannula end deviate from assembly end one side be provided with the cannula hole that is used for pegging graft microcatheter with the through-hole coaxial.
As a preferable technical scheme of the invention, the external thread and the internal thread are both high-pitch interfaces.
As a preferable technical scheme of the invention, a clamping position which is used for accommodating the assembly end and can guide and limit the assembly end is arranged between the inner protrusion and the second inner cavity.
As a preferable technical scheme of the invention, the inner sides of the two ends of the elastic piece are respectively provided with a limiting guide ring used for limiting the elastic piece, and the limiting guide rings are formed by two semi-annular limiting sheets which are opposite to each other.
As a preferred technical solution of the present invention, the assembly end is integrally injection molded.
As a preferred technical solution of the present invention, the second inner cavity is formed by a threaded section and a through section, and the internal thread is disposed on the threaded section.
As a preferable technical scheme of the invention, the inner side of the front end of the assembly end is also provided with an anti-kink elastic buckle, the elastic buckle is connected with an elastic pressing rod, and the elastic pressing rod extends to the outer end side of the assembly end.
As a preferable technical scheme of the invention, the assembly end is also provided with a lug which is convenient to rotate.
As a preferred embodiment of the present invention, the microcatheter extends through the cannula hole and the elastic member to the through hole.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
compared with the prior art, the large-pitch anti-twisting catheter connector has the advantages that the external thread and the internal thread are large-pitch connectors, so that the number of turns required for the elastic piece to shrink to a locking microcatheter state is effectively reduced, and the assembly efficiency is improved; the cannula end is formed by integrally injection molding an ABS and TPU mixed modified high polymer material, and the mixing proportion of the ABS and the TPU is 96: 4-76: 24 for slip when inserting pipe end and elastic component cooperation, be convenient for screw up and loosen, structural design is reasonable, has realized that the catheter joint inserts the position and visualizes, simultaneously, inside protruding and elastic component rotatory time slidable when locking can not lead to the elastic component kink because of the friction, has solved the catheter joint that exists among the prior art and the difficult problem of judging of little catheter connection firmness.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic view of the assembled end structure of the present invention.
Fig. 2 is a schematic view of the cannula end of the present invention.
FIG. 3 is a schematic illustration of the structure of an untwisted assembled microcatheter of the present invention after mating.
Fig. 4 is a schematic structural view of the present invention in a mated, tightened state.
FIG. 5 is a schematic view of the mounting structure of the elastic member and the retainer ring according to the present invention.
The components in the drawings are marked as follows: 1-assembly end, 2-cannula end, 3-luer connector, 4-first inner cavity, 5-external screw thread, 6-internal screw thread, 7-internal bulge, 8-elastic piece, 81-limit guide ring, 9-cannula hole, 10-through hole, 11-second inner cavity, 12-clamping position, 13-elastic buckle, 14, elastic pressing rod, 15-ear handle and 16-microcatheter.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1-5, the high-pitch anti-kink catheter connector according to this embodiment includes a catheter connector, the catheter connector includes an assembly end 1 and a cannula end 2 connected by threads, and an elastic member 8 installed between the assembly end 1 and the cannula end 2, and the cannula end 2 has a mixing ratio of 96: 4-76: 24 is formed by integrally injection molding an ABS and TPU mixed modified polymer material, one side of the assembly end 1, which is away from the cannula end 2, is provided with a luer connector 3 for being connected with an infusion apparatus, the outer surface of one side of the assembly end 1, which is close to the cannula end 2, is provided with an external thread 5, one end of the assembly end 1, which is connected with the cannula end 2, is provided with a first inner cavity 4 for accommodating an elastic member 8, the inner side of the cannula end 2 is provided with a second inner cavity 11 for accommodating the elastic member 8, the inner side wall of the second inner cavity 11 is provided with an internal thread 6, the bottom of the inner side of the cannula end 2 is provided with an internal protrusion 7 for extruding the elastic member 8, one end of the elastic member 8 is arranged in the first inner cavity 4 of the assembly end 1, the other end of the elastic member 8 is arranged in the second inner cavity 11 of the cannula end 2, the end of the elastic member 8 is attached to the internal protrusion 7, the centers of the assembly end 1, the cannula end 2 and the elastic member 8 are provided with mutually communicated through holes 10, one side of the cannula end 2, which is away from the assembly end 1, is provided with a cannula 9 for plugging a microcatheter 16 coaxial with the through holes 10.
In this embodiment, the external thread 5 and the internal thread 6 are both high pitch interfaces.
In this embodiment, a clamping position 12 for accommodating the assembly end 1 and guiding and limiting the assembly end 1 is disposed between the inner protrusion 7 and the second inner cavity 11.
In this embodiment, the inner sides of the two ends of the elastic member 8 are respectively provided with a limiting guide ring 81 for limiting the elastic member, the limiting guide rings 81 are formed by two semi-annular limiting sheets facing each other, when the elastic member is extruded to a certain distance, the two limiting sheets are mutually attached, and when the elastic member is extruded again, the internal gap is limited, so that the anesthetic in the microcatheter cannot normally circulate due to excessive extrusion.
In this embodiment, the assembly end 1 is integrally injection molded.
In this embodiment, the second inner cavity 11 is formed by a threaded section and a through section, and the internal thread 6 is disposed on the threaded section.
In this embodiment, an anti-kink elastic buckle 13 is further disposed at the inner side of the front end of the assembly end 1, the elastic buckle 13 is connected with an elastic pressing rod 14, and the elastic pressing rod 14 extends to the outer end side of the assembly end 1.
In this embodiment, the assembly end 1 is further provided with a lug 15 that is convenient for rotation.
In this embodiment, the microcatheter 16 extends to the through hole 10 through the insertion hole 9 and the elastic member 8, the insertion hole of the microcatheter 16 is longer than the elastic member 8, and if the microcatheter 16 is detached, the whole of the longer part passes through the elastic member 8, so that the detachment is more difficult.
When in use, the microcatheter is inserted into the cannula end of the catheter connector from the cannula hole, and passes through the elastic piece, the elastic piece is arranged in the inner cavities of the assembly end and the cannula end, and the external threads of the assembly end and the internal threads of the cannula end are matched with each other; when the assembly end and the cannula end are screwed up, the length of the inner cavity is gradually reduced, the elastic piece positioned in the inner cavity is extruded and contracted by the inner bulge, the inner cavity of the elastic piece is reduced due to contraction, the micro-catheter positioned in the inner cavity of the elastic piece is locked, the elastic pressing rod is pulled to enable the elastic buckle to hold the catheter tightly, further, the kink is prevented, the screw thread is of a large screw pitch, so that the number of turns required for the elastic piece to contract to a state of locking the micro-catheter is reduced, and in addition, the internal bulge and the elastic piece are not twisted due to friction when rotating when the elastic piece are locked due to the composite material with a special formula.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the invention.
Claims (7)
1. The utility model provides a big pitch anti-twist knot catheter joint, its characterized in that includes the catheter joint, the catheter joint includes assembly end (1) and intubate end (2) through threaded connection and installs elastic component (8) in the middle of assembly end (1) and intubate end (2), intubate end (2) by mixing the proportion 96: 4-76: 24 ABS and TPU are mixed and modified polymer material and are integrally formed by injection molding, one side of the assembly end (1) deviating from the cannula end (2) is provided with a luer connector (3) used for being connected with an infusion apparatus, the outer surface of one side of the assembly end (1) close to the cannula end (2) is provided with an external thread (5), one end of the assembly end (1) connected with the cannula end (2) is provided with a first inner cavity (4) used for accommodating an elastic piece (8), the inner side of the cannula end (2) is provided with a second inner cavity (11) used for accommodating the elastic piece (8), the inner side wall of the second inner cavity (11) is provided with an internal thread (6), the inner bottom of the cannula end (2) is provided with an internal protrusion (7) used for extruding the elastic piece (8), one end of the elastic piece (8) is arranged in the first inner cavity (4) of the assembly end (1), the other end of the elastic piece (8) is arranged in the second inner cavity (11) of the cannula end (2), the end of the elastic piece (8) is attached to the internal protrusion (7), the inner side of the cannula end (2) is provided with a through hole (10) which is communicated with each other, the side of the insertion tube end (2) away from the assembly end (1) is provided with an insertion tube hole (9) coaxial with the through hole (10) and used for inserting a micro-catheter (16);
wherein: the external thread (5) and the internal thread (6) are large-pitch interfaces;
and a clamping position (12) used for accommodating the assembly end (1) and guiding and limiting the assembly end (1) is arranged between the inner bulge (7) and the second inner cavity (11).
2. The high pitch anti-kink catheter adapter of claim 1, wherein: limiting guide rings (81) used for limiting the elastic piece are respectively arranged on the inner sides of two ends of the elastic piece (8), and the limiting guide rings (81) are formed by two semi-annular limiting pieces which are opposite to each other.
3. The high pitch anti-kink catheter adapter of claim 1, wherein: the assembly end (1) is formed by integral injection molding.
4. The high pitch anti-kink catheter adapter of claim 1, wherein: the second inner cavity (11) is composed of a thread section and a straight-through section, and the internal thread (6) is arranged on the thread section.
5. The high pitch anti-kink catheter adapter of claim 1, wherein: the inner side of the front end of the assembly end (1) is also provided with an anti-kink elastic buckle (13), the elastic buckle (13) is connected with an elastic pressing rod (14), and the elastic pressing rod (14) extends to the outer end side of the assembly end (1).
6. The high pitch anti-kink catheter adapter of claim 1, wherein: the assembly end (1) is also provided with an ear handle (15) which is convenient to rotate.
7. The high pitch anti-kink catheter adapter of claim 1, wherein: the micro-catheter (16) passes through the cannula hole (9) and the elastic piece (8) to extend to the through hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058523.XA CN108014415B (en) | 2018-01-22 | 2018-01-22 | Large-pitch anti-torsion guide pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058523.XA CN108014415B (en) | 2018-01-22 | 2018-01-22 | Large-pitch anti-torsion guide pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108014415A CN108014415A (en) | 2018-05-11 |
| CN108014415B true CN108014415B (en) | 2024-02-09 |
Family
ID=62075008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810058523.XA Active CN108014415B (en) | 2018-01-22 | 2018-01-22 | Large-pitch anti-torsion guide pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108014415B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533993A (en) * | 1994-10-05 | 1996-07-09 | International Medication Systems, Limited | Medication injector with protected cannula and Y-site lockout |
| US5782505A (en) * | 1996-08-29 | 1998-07-21 | Becton, Dickinson And Company | Catheter adapter assembly |
| US5795340A (en) * | 1994-02-05 | 1998-08-18 | Lang; Volker | Microcatheter set |
| KR20000018202A (en) * | 2000-01-20 | 2000-04-06 | 박수오 | A fittings for tube to provide with liquid or compressed air |
| CN101528283A (en) * | 2005-01-24 | 2009-09-09 | 纽罗赛斯特克公司 | Apparatus and method for delivering therapeutic and/or other agents to the inner ear and to other tissues |
| CN208243922U (en) * | 2018-01-22 | 2018-12-18 | 临沂市兴华医用器材有限公司 | A kind of big screw pitch anti-kink pipe joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6503244B2 (en) * | 2001-03-07 | 2003-01-07 | Micro Therapeutics, Inc. | High pressure injection system |
-
2018
- 2018-01-22 CN CN201810058523.XA patent/CN108014415B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795340A (en) * | 1994-02-05 | 1998-08-18 | Lang; Volker | Microcatheter set |
| US5533993A (en) * | 1994-10-05 | 1996-07-09 | International Medication Systems, Limited | Medication injector with protected cannula and Y-site lockout |
| US5782505A (en) * | 1996-08-29 | 1998-07-21 | Becton, Dickinson And Company | Catheter adapter assembly |
| KR20000018202A (en) * | 2000-01-20 | 2000-04-06 | 박수오 | A fittings for tube to provide with liquid or compressed air |
| CN101528283A (en) * | 2005-01-24 | 2009-09-09 | 纽罗赛斯特克公司 | Apparatus and method for delivering therapeutic and/or other agents to the inner ear and to other tissues |
| CN208243922U (en) * | 2018-01-22 | 2018-12-18 | 临沂市兴华医用器材有限公司 | A kind of big screw pitch anti-kink pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108014415A (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8372057B2 (en) | Luer lock adapter | |
| KR101418131B1 (en) | Connection piece for an enteral transfer system | |
| US9814652B2 (en) | Universal needlefree bag access device | |
| JP4044995B2 (en) | Angiographic syringe and luer connector | |
| TW200526288A (en) | Female connector | |
| PT1689343E (en) | Male connectors and female connectors which are used to produce liquid transmission connections, such as for enteral nutrition lines | |
| US10188807B2 (en) | Low residual volume syringe/conduit combination and syringe for such a syringe/conduit combination | |
| GB2495002A (en) | Connection system | |
| CN108014415B (en) | Large-pitch anti-torsion guide pipe joint | |
| KR200486337Y1 (en) | A disposable syringe set with Improved engageability | |
| CN211289069U (en) | Fluid joint assembly and infusion pipeline device | |
| CN208243922U (en) | A kind of big screw pitch anti-kink pipe joint | |
| CN205252207U (en) | A separator for insulin pump infusion pipeline | |
| CN219148792U (en) | Plug-in type bonding-free infusion apparatus | |
| CN216755124U (en) | Heparin cap with spiral positive pressure connector | |
| US20240139490A1 (en) | Luer connector for vascular access devices | |
| CN216855415U (en) | Draw and push integration intravenous route ware subassembly | |
| CN213285314U (en) | Multifunctional stomach tube joint | |
| CN216877587U (en) | Medical joint | |
| CN215275002U (en) | Infusion pipeline assembly and medical pipeline structure | |
| CN211357328U (en) | Hemodialysis pipe box | |
| JP6402880B2 (en) | Double female connector | |
| CN105327417B (en) | Separator for insulin pump infusion pipeline | |
| CN213430439U (en) | Separated puncture needle and inner tube thereof | |
| CN220477943U (en) | Novel anesthesia catheter connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |