CN110354340B - Automatic injection and puncture depth adjustable injector - Google Patents
Automatic injection and puncture depth adjustable injector Download PDFInfo
- Publication number
- CN110354340B CN110354340B CN201910685844.7A CN201910685844A CN110354340B CN 110354340 B CN110354340 B CN 110354340B CN 201910685844 A CN201910685844 A CN 201910685844A CN 110354340 B CN110354340 B CN 110354340B
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- rod
- pressing block
- injector
- injection
- extrusion
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- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- 238000001125 extrusion Methods 0.000 claims abstract description 26
- 240000007643 Phytolacca americana Species 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 239000003814 drug Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010070 extrusion (rubber) Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/46—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for controlling depth of insertion
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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 discloses an automatic injection and puncture depth adjustable injector, which comprises an injector, wherein the injector comprises a needle tube, the needle tube is movably sleeved on the needle tube, a piston is movably arranged in the needle tube, a pressing block is fixedly arranged on a core bar, the pressing block is movably arranged in a pressing block slideway on the needle tube, a pushing block is also fixedly arranged on the core bar, the pushing block is movably arranged in a sawtooth slideway on the needle tube, a fastening knob is arranged on a fixed seat, an extrusion rod is movably sleeved in the fixed seat, a thread adjusting knob is movably arranged on the extrusion rod, a poking rod is also fixedly arranged on the extrusion rod, and the poking rod is movably connected with the pushing block. The operation difficulty of medical staff is reduced, and the pain of patients is relieved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an automatic injection and adjustable puncture depth injector.
Background
Medical syringe is a common medical appliances, and the main syringe needle that mainly draws liquid medicine, sends into patient's internal with the medicine through the mode of injecting to reach treatment, current syringe needle adopts the injection mode of direct needle of advancing more, because medical staff controls not in place, hardly accurate control injection depth, thereby lead to the injection inaccuracy, simultaneously because the syringe needle is outside, does not have any protection device, medical staff when using, causes self injury easily.
In order to solve the problems, the needle head hidden type injector with adjustable injection depth, which is applied under the application number of 'CN 201611038414.9' in the prior art, comprises an injection tube and a hidden needle head, wherein a pressing tube is arranged in the injection tube, a rubber extrusion head is fixed on the inner end surface of the pressing tube, a fixed platform and a fixed shell are fixed at two ends of the injection tube, the fixed shell is fixed at one side of the fixed platform, an adjustable outer cover is connected to the top end of the fixed shell, the adjustable outer cover and the fixed shell are fixed through a positioning piece, a hidden inner cover is fixed at the other end of the adjustable outer cover, the hidden inner cover and the adjustable outer cover are connected through a spring, a pressure head is arranged inside the adjustable outer cover, the other end of the pressure head is connected with the hidden needle head, and a through hole for the hidden needle head to stretch is reserved at the center position of the top surface of the hidden inner cover; this kind of hidden syringe of syringe needle of injection depth adjustable, after the equipment is ended, through the terminal surface adjustment of adjustable enclosing cover, the syringe needle degree of depth of skin is injected into in accurate control, has improved the security of product in the use greatly.
Although the problem of adjustable depth is solved, the needle concealed injector with adjustable injection depth still has obvious defects in the using process: 1. when the medical staff injects the needle into the body of the patient, the medicine still needs to be injected into the body of the patient again by hands, which increases the operation difficulty of the medical staff; 2. the injection process of the device is still manual injection, and the manual force is difficult to master, so that the injection part is easy to swell, and the patient feels uncomfortable.
Disclosure of Invention
The present invention is directed to an automatic injection and adjustable penetration depth injector to solve the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic injection and puncture depth adjustable injector comprises an injector, wherein the injector comprises a needle tube, the needle tube is movably sleeved on a needle cylinder, a piston is movably arranged in the needle cylinder, the piston is fixedly connected with a core bar, a pressing block is fixedly arranged on the core bar, the pressing block is movably arranged in a pressing block slide way on the needle cylinder, two ends of the pressing block are movably provided with an injection spring, the pressing block is driven to move downwards by the downward pulling force of the injection spring, the pressing block moves downwards to drive the core bar, the core bar moves downwards to drive the piston to move, one end of the injection spring, far away from the pressing block, is fixedly connected with a fixed seat, the core bar is also fixedly provided with a pushing block, the pushing block is movably arranged in a sawtooth slide way on the needle cylinder, the pushing block moves in the sawtooth slide way, and the fixed seat is provided with a fastening knob, the fixing seat is fixed on the injector by rotating the fastening knob to be in contact with a needle cylinder of the injector, an extrusion rod is movably sleeved in the fixing seat, positive threads are formed in the extrusion rod, a thread adjusting knob is movably mounted on the extrusion rod and is driven to move up and down on the extrusion rod by rotating the thread adjusting knob, the thread adjusting knob is movably connected with an extrusion spring, one end, far away from the thread adjusting knob, of the extrusion spring is fixedly connected with the fixing seat, a poking rod is fixedly mounted on the extrusion rod and is movably connected with a pushing block, and after the poking rod is contacted with the pushing block, the pushing block is pushed out of a sawtooth position on a sawtooth-shaped slide way and moves downwards under the action of downward pulling force of the pushing spring to drive the core rod to move downwards.
Preferably, one end, far away from the fixed seat, of the extrusion rod is fixedly connected with the attaching plate, and the attaching plate is provided with an injection hole.
Preferably, the extrusion rod is provided with a marking channel, and a puncture depth scale mark is marked in the marking channel.
Preferably, the syringe is marked with a capacity scale marking.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can adjust the injection depth, and prevent medical staff from penetrating too deeply or too shallowly to influence the absorption of the medicine and the exertion of the medicine effect;
2. the invention can automatically inject the medicine after the insertion, thereby reducing the operation difficulty of medical personnel and leading the injection process to be more convenient and faster;
3. compared with manual injection, the automatic injection of the invention has stable force, can effectively prevent the bulge phenomenon caused by too fast injection and relieve the pain of patients.
The invention can adjust the injection depth, automatically inject the medicine after the insertion, prevent medical staff from inserting too deeply or too shallowly, has stable injection force, reduces the operation difficulty of the medical staff and relieves the pain of patients.
Drawings
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the overall structure of the present invention;
FIG. 3 is a schematic view of a sawtooth slideway structure of the present invention;
FIG. 4 is a schematic view of the structure of the bonding pad of the present invention;
fig. 5 is a schematic view of a fixed block connection structure according to the present invention.
In the figure: the injection device comprises an injector 1, a needle tube 2, a needle tube 3, a piston 4, a core rod 5, a pressing block 6, a pressing block 7, a pushing spring 8, a fixing seat 9, a pushing block 10, a sawtooth-shaped slide 11, a fastening knob 12, an extrusion rod 13, a thread adjusting knob 14, an extrusion spring 15, a poking rod 16, a joint plate 17, an injection hole 18 and a marking channel 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, the present invention provides a technical solution:
an automatic injection and puncture depth adjustable injector comprises an injector 1, the injector 1 comprises a needle tube 2, the needle tube 2 is used for puncturing into human skin, the needle tube 2 is movably sleeved on the needle tube 3, liquid medicine is stored in the needle tube 3, a piston 4 is movably arranged in the needle tube 3, the piston 4 is used for extruding the medicine into a patient body, the piston 4 is fixedly connected with a core bar 5, a pressing block 6 is fixedly arranged on the core bar 5, the pressing block 6 is movably arranged in a pressing block slideway 7 on the needle tube 3, the pressing block 6 can move in the pressing block slideway 7, injection springs 8 are movably arranged at two ends of the pressing block 6, the pressing block 6 is driven to move downwards by the downward pulling force of the injection springs 8, the pressing block 6 moves downwards to drive the core bar 5 to move downwards, the core bar 5 moves downwards to drive the piston 4 to move, so that the medicine is injected into the patient body, one end of the injection springs 8 far away from the pressing block 6 is fixedly connected with a fixed seat 9, the fixed seat 9 is fixedly connected with the injector 1, the core bar 5 is also fixedly provided with a pushing block 10, the pushing block 10 is movably arranged in a sawtooth-shaped slideway 11 on the needle cylinder 3, the pushing block 10 can move in the sawtooth-shaped slideway 11, the fixed seat 9 is provided with a fastening knob 12, the fastening knob 12 is rotated to be contacted with the needle cylinder 3 of the injector 1, so that the fixed seat 9 is fixed on the injector 1, the fixed seat 9 is movably sleeved with a squeezing rod 13, the squeezing rod 13 is provided with a positive thread, the squeezing rod 13 is movably provided with a thread adjusting knob 14, the thread adjusting knob 14 can be moved up and down on the squeezing rod 13 by rotating the thread adjusting knob 14, the thread adjusting knob 14 is movably connected with a squeezing spring 15, one end of the squeezing spring 15 far away from the thread adjusting knob 14 is fixedly connected with the fixed seat 9, the squeezing rod 13 is also fixedly provided with a poking rod 16, and the poking rod 16 is movably connected with the pushing block 10, after the poke rod 16 is contacted with the push block 10, the push block 10 is pushed out of the sawtooth part on the sawtooth slide rail 11 and moves downwards under the action of the downward pulling force of the push spring 8, so that the core rod 5 is driven to move downwards.
Preferably, one end of the extrusion rod 13, which is far away from the fixed seat 9, is fixedly connected with the attaching disc 17, the attaching disc 17 is used for contacting with the skin of a patient, the contact area is increased, the injection is more stable, the attaching disc 17 is provided with an injection hole 18, and the needle tube 2 passes through the injection hole 18 and then enters the body of the patient.
Preferably, the pressing rod 13 is provided with a marking channel 19, a puncture depth scale mark is marked in the marking channel 19, and the puncture distance can be determined by comparing the puncture depth scale mark in the marking channel 19 through adjusting the threaded adjusting knob 14 to move up and down.
Preferably, the syringe 3 is marked with volume scale markings for the injection of the medical staff only.
The working principle is as follows: the user sleeves the injector 1 with the medicine removed on the fixed seat 9, fixes the injector 1 and the fixed seat 9 by rotating the fastening knob 12, ensures that the pushing block 10 is positioned in the sawtooth lattices of the sawtooth-shaped slideway 11, installs the pushing spring 8 on the pushing block 10, adjusts the thread adjusting knob 14 to determine the puncture depth, injects the patient at the moment, pastes the laminating disc 17 on the skin of the patient, pushes the fixed seat 9, at the moment, the needle tube 2 passes through the injection hole 18 to enter the body of the patient, simultaneously, the extrusion rod 13 extrudes backwards under the forward movement of the needle tube 2, when the thread adjusting knob 14 contacts with the fixed seat 9, the extrusion rod 13 stops extruding, at the moment, the needle tube 2 stops advancing, synchronously, the extrusion rod 13 moves backwards to drive the poking rod 16 to move, when the poking rod 16 contacts with the pushing block 10, the poking rod 16 pushes the pushing block 10 out of the sawtooth-shaped slideway 11, at this moment, the pulling force of the injection spring 8 drives the pressing block 6 to press downwards, the pressing block 6 moves downwards to drive the core rod 5 to move downwards, the core rod 5 moves downwards to drive the piston 4 to move, so that the medicine is injected into the body of a patient, and after the medicine is injected, the needle tube 2 is pulled out to complete the injection action.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an automatic syringe with adjustable puncture depth, includes syringe (1), its characterized in that: the injector (1) comprises a needle tube (2), the needle tube (2) is movably sleeved on a needle cylinder (3), a piston (4) is movably installed in the needle cylinder (3), the piston (4) is fixedly connected with a core rod (5), a pressing block (6) is fixedly installed on the core rod (5), the pressing block (6) is movably installed in a pressing block slide way (7) on the needle cylinder (3), springs (8) are movably installed at two ends of the pressing block (6), the pressing block (6) is driven to move downwards by the downward tensile force of the injection springs (8), the pressing block (6) moves downwards to drive the core rod (5) to move downwards, the core rod (5) moves downwards to drive the piston (4) to move, one end, far away from the pressing block (6), of the injection springs (8) is fixedly connected with a fixed seat (9), a pushing block (10) is further fixedly installed on the core rod (5), promote piece (10) movable mounting in zigzag slide (11) on cylinder (3), promote piece (10) and remove in zigzag slide (11), install fastening knob (12) on fixing base (9), through rotatory fastening knob (12) make its cylinder (3) contact with syringe (1), and then will fixing base (9) are fixed on syringe (1), fixing base (9) internalization cover is equipped with extrusion pole (13), positive thread has been seted up on extrusion pole (13), movable mounting has screw thread adjust knob (14) on extrusion pole (13), through rotating screw thread adjust knob (14) make it reciprocate on extrusion pole (13), screw thread adjust knob (14) and extrusion spring (15) swing joint, screw thread adjust knob (14) one end and fixing base (9) fixed connection are kept away from to extrusion spring (15), the push rod (13) is further fixedly provided with a poke rod (16), the poke rod (16) is movably connected with the pushing block (10), and after the poke rod (16) is contacted with the pushing block (10), the pushing block (10) is pushed out of saw teeth on the saw-tooth slide way (11) and moves downwards under the action of downward pulling force of the push spring (8), so that the core rod (5) is driven to move downwards.
2. The automatic injection and adjustable penetration depth injector of claim 1, wherein: one end, far away from the fixed seat (9), of the extrusion rod (13) is fixedly connected with the attaching disc (17), and the attaching disc (17) is provided with an injection hole (18).
3. The automatic injection and adjustable penetration depth injector of claim 1, wherein: a marking channel (19) is formed in the extrusion rod (13), and puncture depth scale marks are marked in the marking channel (19).
4. The automatic injection and adjustable penetration depth injector of claim 1, wherein: the needle cylinder (3) is marked with capacity scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685844.7A CN110354340B (en) | 2019-07-28 | 2019-07-28 | Automatic injection and puncture depth adjustable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685844.7A CN110354340B (en) | 2019-07-28 | 2019-07-28 | Automatic injection and puncture depth adjustable injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110354340A CN110354340A (en) | 2019-10-22 |
| CN110354340B true CN110354340B (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910685844.7A Active CN110354340B (en) | 2019-07-28 | 2019-07-28 | Automatic injection and puncture depth adjustable injector |
Country Status (1)
| Country | Link |
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| CN (1) | CN110354340B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860011A (en) * | 2019-12-30 | 2020-03-06 | 青岛大学附属医院 | A convenient clinical injection device for anesthetics |
| CN111298245A (en) * | 2020-03-03 | 2020-06-19 | 李春丽 | Medical intramuscular injection auxiliary device |
| CN111513729B (en) * | 2020-05-07 | 2021-04-27 | 吉林大学 | An Efficient Prenatal Diagnosis Interphase Fetal Cell Detection Device |
| CN112089927B (en) * | 2020-10-10 | 2022-04-22 | 鹰潭荣嘉集团医疗器械实业有限公司 | Intramuscular injector capable of accurately positioning and controlling injection depth |
| CN114442452B (en) * | 2020-11-02 | 2025-02-18 | 纳思达股份有限公司 | A powder box |
| CN112190318B (en) * | 2020-11-13 | 2022-01-28 | 武咏 | Epidural puncture needle inserting device and method for anesthesia department |
| CN112641531A (en) * | 2020-11-25 | 2021-04-13 | 中国人民解放军陆军军医大学第二附属医院 | Subcutaneous injection device |
| CN112870494B (en) * | 2021-02-05 | 2021-12-28 | 普昂(杭州)医疗科技股份有限公司 | Injection-depth-adjustable insulin needle |
| CN112972835B (en) * | 2021-02-25 | 2022-08-23 | 中国人民解放军陆军军医大学第一附属医院 | Intramuscular injection positioning device for trauma patient |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404543Y (en) * | 1999-12-17 | 2000-11-08 | 宋振鹏 | Position-limitation type syringe for animals |
| CN204655685U (en) * | 2015-05-07 | 2015-09-23 | 镇江高冠医疗器械有限公司 | A kind of hard waist combined anesthesia puncture bag of automatic detection epidural space position |
| CN208660053U (en) * | 2017-08-01 | 2019-03-29 | 毕树军 | A kind of anesthesia syringe with stable injectable function |
| CN209108307U (en) * | 2018-07-08 | 2019-07-16 | 周国庆 | A kind of puncture needle for anesthesia head |
-
2019
- 2019-07-28 CN CN201910685844.7A patent/CN110354340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404543Y (en) * | 1999-12-17 | 2000-11-08 | 宋振鹏 | Position-limitation type syringe for animals |
| CN204655685U (en) * | 2015-05-07 | 2015-09-23 | 镇江高冠医疗器械有限公司 | A kind of hard waist combined anesthesia puncture bag of automatic detection epidural space position |
| CN208660053U (en) * | 2017-08-01 | 2019-03-29 | 毕树军 | A kind of anesthesia syringe with stable injectable function |
| CN209108307U (en) * | 2018-07-08 | 2019-07-16 | 周国庆 | A kind of puncture needle for anesthesia head |
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| Publication number | Publication date |
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| CN110354340A (en) | 2019-10-22 |
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Inventor after: Zhu Shixin Inventor after: Zhu Huaiyan Inventor before: Zhu Shixin |
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Effective date of registration: 20211203 Address after: 404600 Yongan Road, Yufu Street, Fengjie County, Chongqing Applicant after: Fengjie maternal and Child Health Hospital (Fengjie maternal and child health and family planning service center) Address before: 233002 No.125, longmiao village, mohekou Town, Huaishang District, Bengbu City, Anhui Province Applicant before: Zhu Shixin |
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