CN107821996B - Self-cleaning double-head injection needle for saline injection machine - Google Patents

Self-cleaning double-head injection needle for saline injection machine Download PDF

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Publication number
CN107821996B
CN107821996B CN201711263493.8A CN201711263493A CN107821996B CN 107821996 B CN107821996 B CN 107821996B CN 201711263493 A CN201711263493 A CN 201711263493A CN 107821996 B CN107821996 B CN 107821996B
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China
Prior art keywords
needle
solution
pipe joint
distributor
injection pipe
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CN201711263493.8A
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CN107821996A (en
Inventor
王成军
邾志伟
沈豫浙
陶宏斌
段浩
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Shen Yuzhe
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Anhui Zhi Cheng He Xin Food Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L13/00—Meat products; Meat meal; Preparation or treatment thereof
    • A23L13/70—Tenderised or flavoured meat pieces; Macerating or marinating solutions specially adapted therefor
    • A23L13/72—Tenderised or flavoured meat pieces; Macerating or marinating solutions specially adapted therefor using additives, e.g. by injection of solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

The invention discloses a self-cleaning double-head injection needle for a brine injection machine, which comprises a needle head, a solution distributor, an electromagnetic reversing valve, a force transducer, a solution injection pipe joint and a cleaning agent injection pipe joint. The solution injection pipe joint and the cleaning agent injection pipe joint are connected with the solution distributor through the electromagnetic reversing valve, so that the connection and disconnection between pipelines are realized, the resistance of the needle head during puncture is detected through the force transducer, and the cleaning agent injection pipe joint is used for injecting cleaning agent or high-pressure pulse water to clean or dredge the solution distributor and the needle head. The invention can reduce the blocking probability of the needle head and the running cost and improve the economic benefit; the bacterial breeding opportunities are reduced through regular cleaning, and the quality and quality stability of the meat product are improved; the use of the force transducer can effectively avoid the needle from bending or breaking and is not damaged. The invention also has the advantages of compact structure, high safety, strong adaptability, simple and convenient operation and maintenance, suitability for popularization and the like.

Description

Self-cleaning double-head injection needle for saline injection machine
Technical Field
The invention belongs to the technical field of food processing equipment, and particularly relates to a self-cleaning double-head injection needle for a saline injection machine, which has the functions of cleaning, preventing blockage and preventing needle bending and breaking.
Background
The brine injection machine is used for injecting brine, flavoring agents, antistaling agents and the like into meat products for fully pickling, and the meat blocks injected with the prepared aqueous solution can enable the meat quality to achieve rapid pickling, increase flavoring, tenderize and soft, can also keep meat nutrition, strengthen the taste and improve the grade and the yield of the meat products. The existing injection needle of the injection machine is unreasonable in design structure, short in service life, high in failure rate in use and inconvenient to operate. When the traditional saline water injector is used, the problems of needle blockage, injection leakage, difficult cleaning, needle bending and breakage and the like often occur, and especially the needle is easy to be blocked when components such as starch and the like are added into an injection water solution. When the needle head is in contact with bone in the process of penetrating the meat product, the downward pressure of the needle head is blocked, and the bending and breaking of the injection needle are easily caused.
Some solutions have also been proposed in the prior art for the problems with saline syringe needles in use. The Chinese patent with the application number of 201320212232.4 discloses an injection nozzle of a saline injection machine, which comprises a nozzle main body, wherein a certain space is reserved in the nozzle main body, the front end of each fixed needle is correspondingly provided with an injection tube, the injection tube is fixed through a fixed plate, and a reset spring is arranged between the fixed plate and a filter screen. The patent mainly has the following problems in actual operation: when the injection tube head touches a hard object, the injection tube automatically pops up, and other injection tubes can pop up along with the hard object, so that the injection efficiency is affected; the injection tubes are uniform in length, so that uneven injection of meat products is easily caused, the difference of internal and external tastes is easily caused, and the diameter of the injection tubes is required to be large. The Chinese patent with application number 201620641879.2 discloses an injection nozzle of a saline injection machine, which comprises a saline distributor and an injection mechanism, wherein the injection is ensured to be uniform through the length of an adjusted injection tube, but when the injection tube is blocked, the method of dredging by using a fixed needle is too complicated, and the cleaning is inconvenient. The Chinese patent with application number 201621105483.2 discloses a saline injection machine, which avoids the direct contact between an injection needle and meat products through a supporting foot structure, can solve the problem of blocking of the injection needle, and has the defects that the supporting foot occupies larger space and is not suitable for being used in places with denser needle tubes. The Chinese patent with application number 201120357352.4 discloses a saline water injector, which reduces the blocking probability of injection needles by adding a multi-channel filtering method to a solution tank car, and has the defect of being not suitable for occasions with dense needle tubes and smaller space. The Chinese patent with the application number of 201320368008.4 discloses a pneumatic bouncing device for an injection needle of a saline injection machine, which comprises a pressure regulating valve, a sealed air chamber and the injection needle, wherein the injection needle is connected with the pressure regulating valve through a cylinder barrel piston, so that the problem that the injection needle is bent due to overlarge stress is solved, and the problem that the needle is blocked cannot be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a self-cleaning double-head injection needle for a brine injection machine, which can be used for carrying out aqueous solution injection operation in the brine injection machine, has the functions of self cleaning, cleaning plugs, preventing needle bending and breaking and the like, can improve the quality, stability and safety of meat products, reduces the labor intensity and the production cost, and can overcome the defects of the prior art.
The technical problems to be solved by the invention are realized by adopting the following technical scheme.
A self-cleaning double-head injection needle for a brine injection machine comprises a needle head, a solution distributor, an electromagnetic reversing valve, a force transducer, a solution injection pipe joint and a cleaning agent injection pipe joint. The upper end of the needle is fixedly connected with the bottom of the solution distributor; the solution distributor is fixedly arranged at the bottom of the electromagnetic directional valve and used for distributing water solution to the needle head, and the solution distributor is fixedly connected with the electromagnetic directional valve through a screw; the solution injection pipe joint is positioned at the top of the electromagnetic directional valve and is used for being connected with a brine tank or a brine tank of the brine injector to inject aqueous solution into the solution distributor, and the solution injection pipe joint is connected with the top of the electromagnetic directional valve through a force transducer; the cleaning agent injection pipe joint is positioned at one side of the electromagnetic directional valve and is used for injecting cleaning agent into the solution distributor, cleaning the solution distributor and the needle head, dredging the blocked needle head, and the cleaning agent injection pipe joint is fixedly connected with the electromagnetic directional valve through threads; the solution injection pipe joint, the cleaning agent injection pipe joint and the internal pipeline of the solution distributor are connected through an electromagnetic reversing valve; the solution distributor is a hollow piece, and the internal cavity of the solution distributor is communicated with the two needles. The electromagnetic reversing valve is used for realizing the connection or disconnection of the pipeline among the solution injection pipe joint, the cleaning agent injection pipe joint and the solution distributor. The force transducer adopts a two-dimensional force transducer which can measure pressure and torsion simultaneously. The electromagnetic reversing valve adopts a three-position three-way electromagnetic reversing valve.
The needle head comprises a needle tube and a needle tip. The top of the needle tip is fixedly connected with the bottom of the needle tube by a welding method, and two upper liquid outlet holes and two lower liquid outlet holes are formed in the lower end of the needle tube. The two upper liquid outlet holes and the two lower liquid outlet holes are symmetrically arranged at the lower end of the needle tube, and the axis of the upper liquid outlet hole is perpendicular to the axis of the lower liquid outlet hole.
The solution dispenser includes a dispensing body and a connector. The distribution body is connected with the connecting body through threads, and the bottom of the distribution body is fixedly connected with the top of the needle tube and is communicated with the top of the needle tube; the connecting body is used for connecting the electromagnetic directional valve and the distributing body, a conical cavity is arranged in the connecting body, and a connecting pipe used for being connected with the electromagnetic directional valve and a connecting lug used for being fixed with the electromagnetic directional valve are arranged at the top of the connecting body.
The needle tip is made of elastic stainless steel materials. The needle tip is in a conical tubular structure and comprises three conical sector segments which are symmetrically arranged. And a liquid seepage gap is arranged between two adjacent cone-shaped segment pieces, and the width of the liquid seepage gap is 0.0-1.0mm. The liquid seepage slit is in an inverted triangle shape, the width of the upper end of the liquid seepage slit is larger than that of the lower end of the liquid seepage slit, and the width of the liquid seepage slit is gradually narrowed from top to bottom. The upper liquid outlet hole, the lower liquid outlet hole and the liquid seepage seam are all used for injecting aqueous solution into the meat product. The width of the seepage gap can be increased instantaneously by utilizing the elastic deformation capability of the cone sector pipe piece, so that the seepage gap has the function of clearing the blockage in the needle head.
When the cleaning agent distributor is used, the electromagnetic reversing valve is started to enable the solution injection pipe joint to be communicated with the solution distributor, and a pipeline between the cleaning agent injection pipe joint and the solution distributor is disconnected. The aqueous solution in the solution injection tube joint is distributed by the solution distributor and then enters the needle tubes of the two needles. After the needle is pricked into the meat product, the water solution in the needle tube is injected into the meat product through the upper liquid outlet hole, the lower liquid outlet hole and the liquid seepage slot. When the blockage in the needle head needs to be cleaned or cleared, the electromagnetic reversing valve is started to disconnect the pipeline between the solution injection pipe joint and the solution distributor, so that the pipeline between the cleaning agent injection pipe joint and the solution distributor is communicated. The cleaning agent enters the solution distributor from the cleaning agent injection pipe joint and then enters the needle head, and simultaneously the solution distributor and the needle head are cleaned; when a plug appears in the needle head, only high-pressure pulse water is injected into the cleaner injection pipe joint, the needle tube, the needle point, the upper liquid outlet hole, the lower liquid outlet hole and the liquid seepage slot are cleaned, and the cleaned plug can be discharged from the upper liquid outlet hole, the lower liquid outlet hole and the liquid seepage slot; the larger plug can instantaneously increase the width of the seepage gap through the elastic deformation capability of the cone-shaped segment, so that the plug is discharged from the instantaneously increased seepage gap. When the needle head encounters the obstruction such as bone when injecting aqueous solution, the force transducer can acquire resistance signals in time, and the puncture of the needle head is stopped by the control system of the saline injection machine, so that the needle head can be effectively prevented from bending or breaking.
Compared with the prior art, the cleaning agent injection pipe joint is added, so that cleaning agent or high-pressure pulse water can be injected into the cleaning agent injection pipe joint, the solution distributor and the needle are cleaned or the blockage is cleared, the blockage probability of the injection needle is reduced, the damage to the needle caused by manual blockage clearing is reduced, the running cost is reduced, and the economic benefit is improved; meanwhile, the regular cleaning of the solution distributor and the needle head greatly reduces the breeding opportunity of bacteria and improves the quality and quality stability of meat products; the use of the force transducer can effectively avoid the needle from bending or breaking and is not damaged. The invention also has the advantages of compact structure, high safety, strong adaptability, simple and convenient operation and maintenance, suitability for popularization and the like, and can overcome the defects of the prior art.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the lower end of the needle of the present invention;
FIG. 3 is a schematic view of the connection between a needle cannula and a needle tip according to the present invention;
FIG. 4 is a schematic view of the structure of the solution dispenser of the present invention;
FIG. 5 is a schematic illustration of the connection between a needle and a solution dispenser according to the present invention.
Detailed Description
The invention is further described below with reference to specific embodiments and illustrations in order to make the technical means, the creation features, the achievement of the purpose and the effect achieved by the invention easy to understand.
As shown in fig. 1, 2, 3, 4 and 5, a self-cleaning double-head injection needle for a brine injection machine comprises a needle head 1, a solution distributor 2, an electromagnetic directional valve 3, a load cell 4, a solution injection pipe joint 5 and a cleaning agent injection pipe joint 6. Wherein, the two needles 1 are arranged below the solution distributor 2 in parallel and used for injecting prepared aqueous solution into meat products, and the upper end of the needle 1 is fixedly connected with the bottom of the solution distributor 2 by a welding method; the solution distributor 2 is fixedly arranged at the bottom of the electromagnetic directional valve 3 and is used for distributing water solution to the needle head 1, and the solution distributor 2 is fixedly connected with the electromagnetic directional valve 3 through screws; the solution injection pipe joint 5 is positioned at the top of the electromagnetic directional valve 3 and is used for being connected with a brine tank or a brine tank of a brine injector to inject aqueous solution into the solution distributor 2, and the solution injection pipe joint 5 is connected with the top of the electromagnetic directional valve 3 through the force transducer 4; the cleaning agent injection pipe joint 6 is positioned at one side of the electromagnetic directional valve 3 and is used for injecting cleaning agent into the solution distributor 2 and cleaning the solution distributor 2 and the needle head 1, dredging the blocked needle head 1, and the cleaning agent injection pipe joint 6 is fixedly connected with the electromagnetic directional valve 3 through threads; the solution injection pipe joint 5, the cleaning agent injection pipe joint 6 and the internal pipeline of the solution distributor 2 are connected through the electromagnetic directional valve 3; the solution distributor 2 is a hollow piece, and the inner cavity of the solution distributor is communicated with the two needles 1. The electromagnetic directional valve 3 is used for realizing the pipeline communication or cut-off between the solution injection pipe joint 5, the cleaning agent injection pipe joint 6 and the solution distributor 2. The force sensor 4 adopts a two-dimensional force sensor capable of measuring pressure and torsion at the same time. The electromagnetic directional valve 3 adopts a three-position three-way electromagnetic directional valve.
As shown in fig. 1, 2, 3 and 5, the needle 1 includes a needle tube 11 and a needle tip 12. Wherein, the top of the needle tip 12 is fixedly connected with the bottom of the needle tube 11 by a welding method, and the lower end of the needle tube 11 is provided with two upper liquid outlet holes 111 and two lower liquid outlet holes 112. The two upper liquid outlet holes 111 and the two lower liquid outlet holes 112 are symmetrically arranged at the lower end of the needle tube 11, and the axis of the upper liquid outlet hole 111 is perpendicular to the axis of the lower liquid outlet hole 112.
As shown in fig. 1, 4 and 5, the solution dispenser 2 includes a dispenser body 21 and a connector 22. Wherein, the distributing body 21 is connected with the connecting body 22 through threads, and the bottom of the distributing body 21 is fixedly connected with the top of the needle tube 11 and keeps communication; the connector 22 is used for connecting the electromagnetic directional valve 3 with the distributing body 21, a conical cavity is arranged in the connector 22, and a connecting pipe 221 used for connecting with the electromagnetic directional valve 3 and a connecting lug 222 used for fixing with the electromagnetic directional valve 3 are arranged at the top of the connector 22.
As shown in fig. 1, 2, 3 and 5, the needle tip 12 is made of an elastic stainless steel material. The needle tip 12 is in a conical tubular structure and comprises three conical fan-shaped duct pieces 121 which are symmetrically arranged, a liquid seepage slit 122 is arranged between two adjacent conical fan-shaped duct pieces 121, and the width range of the liquid seepage slit 122 is 0.0-1.0mm. The liquid permeation gap 122 is in an inverted triangle shape, the width of the upper end of the liquid permeation gap 122 is larger than the width of the lower end of the liquid permeation gap 122, and the width of the liquid permeation gap 122 is gradually narrowed from top to bottom. The upper liquid outlet 111, the lower liquid outlet 112 and the liquid seepage gap 122 are all used for injecting aqueous solution into the meat product. The width of the weeping gap 122 can be instantaneously increased by utilizing the elastic deformation capability of the cone sector segment 121, so that the weeping gap 122 has the function of clearing the blockage in the needle head 1.
When in use, the electromagnetic directional valve 3 is started to enable the solution injection pipe joint 5 to be communicated with the solution distributor 2, and the pipeline between the cleaning agent injection pipe joint 6 and the solution distributor 2 is disconnected. The aqueous solution in the solution injection tube joint 5 is distributed by the solution distributor 2 and then enters the needle tubes 11 of the two needles 1. After the needle 1 is inserted into the meat product, the aqueous solution in the needle tube 11 is injected into the meat product through the upper liquid outlet 111, the lower liquid outlet 112 and the liquid seepage slit 122. When the blockage in the needle head 1 needs to be cleaned or cleared, the electromagnetic directional valve 3 is started to disconnect a pipeline between the solution injection pipe joint 5 and the solution distributor 2, and the pipeline between the cleaning agent injection pipe joint 6 and the solution distributor 2 is communicated. The cleaning agent enters the solution distributor 2 from the cleaning agent injection pipe joint 6 and then enters the needle head 1, and simultaneously the solution distributor 2 and the needle head 1 are cleaned; when a blockage appears in the needle head 1, only high-pressure pulse water is injected into the cleaning agent injection pipe joint 6, the needle tube 11, the needle point 12, the upper liquid outlet hole 111, the lower liquid outlet hole 112 and the liquid seepage gap 122 are cleaned, and the cleaned blockage can be discharged from the upper liquid outlet hole 111, the lower liquid outlet hole 112 and the liquid seepage gap 122; wherein a larger obstruction can instantaneously increase the width of the weeping slits 122 by the elastic deformability of the cone-sector segment 121, thereby allowing the obstruction to be discharged from the instantaneously increased weeping slits 122. When the needle head 1 encounters the obstruction of bones and the like during the injection of the aqueous solution, the force transducer 4 can acquire a resistance signal in time, and the puncture of the needle head 1 is stopped by the control system of the saline water injector, so that the needle head 1 can be effectively prevented from bending or breaking.
In the description of the present invention, it should be understood that the terms "upper," "lower," "vertical," "top," "bottom," "inner," "outer," "side," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (2)

1. The utility model provides a brine is self-cleaning double-end syringe needle for injection machine, includes syringe needle, solution distributor, electromagnetic directional valve, force transducer, solution injection coupling and cleaner injection coupling, its characterized in that: the two needles are arranged below the solution distributor in parallel, and the upper ends of the needles are fixedly connected with the bottom of the solution distributor; the solution distributor is fixedly arranged at the bottom of the electromagnetic directional valve and is fixedly connected with the electromagnetic directional valve through a screw; the solution injection pipe joint is positioned at the top of the electromagnetic reversing valve and is connected with the top of the electromagnetic reversing valve through a force transducer; the cleaning agent injection pipe joint is positioned at one side of the electromagnetic directional valve and is fixedly connected with the electromagnetic directional valve through threads; the solution injection pipe joint, the cleaning agent injection pipe joint and the internal pipeline of the solution distributor are connected through an electromagnetic reversing valve; the solution distributor is a hollow piece, and the internal cavity of the solution distributor is communicated with the two needles;
the needle head comprises a needle tube and a needle point, the top of the needle point is fixedly connected with the bottom of the needle tube, and the lower end of the needle tube is provided with two upper liquid outlet holes and two lower liquid outlet holes;
the solution distributor comprises a distributor body and a connector, wherein the distributor body is connected with the connector through threads, and the bottom of the distributor body is fixedly connected with the top of the needle tube and is communicated with the top of the needle tube; the inside of the connector is provided with a conical cavity, and the top of the connector is provided with a connecting pipe and a connecting lug;
the two upper liquid outlet holes and the two lower liquid outlet holes are symmetrically arranged at the lower end of the needle tube, and the axis of the upper liquid outlet holes is perpendicular to the axis of the lower liquid outlet holes;
the force transducer adopts a two-dimensional force transducer capable of measuring pressure and torsion simultaneously, and the electromagnetic reversing valve adopts a three-position three-way electromagnetic reversing valve;
the needle tip is in a conical tubular structure and comprises three conical fan-shaped duct pieces which are symmetrically arranged, a liquid seepage slit is arranged between two adjacent conical fan-shaped duct pieces, and the width of the liquid seepage slit is in the range of 0.0-1.0mm;
the liquid seepage slit is in an inverted triangle shape, and the width of the upper end of the liquid seepage slit is larger than that of the lower end of the liquid seepage slit.
2. A self-cleaning double-ended injection needle for a brine injector according to claim 1, wherein: the needle tip is made of elastic stainless steel materials.
CN201711263493.8A 2017-12-05 2017-12-05 Self-cleaning double-head injection needle for saline injection machine Active CN107821996B (en)

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Application Number Priority Date Filing Date Title
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CN107821996B true CN107821996B (en) 2023-06-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109393374A (en) * 2018-11-21 2019-03-01 嘉兴三珍斋食品有限公司 A kind of Spiced beef and its production technology

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CN200945178Y (en) * 2006-08-22 2007-09-12 吴彦森 Disposable connecting type epidural anaesthetic puncture needle
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CN205252231U (en) * 2015-12-24 2016-05-25 张世海 Facial cosmetic syringe

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Publication number Priority date Publication date Assignee Title
CH92899A (en) * 1916-08-24 1922-02-01 Medica S A Fabrique D Instr De Injection syringe.
US6241710B1 (en) * 1999-12-20 2001-06-05 Tricardia Llc Hypodermic needle with weeping tip and method of use
CN200945178Y (en) * 2006-08-22 2007-09-12 吴彦森 Disposable connecting type epidural anaesthetic puncture needle
JP2008229313A (en) * 2007-02-20 2008-10-02 Seiko Instruments Inc Injection needle puncturing device
KR101218184B1 (en) * 2011-09-09 2013-01-03 (주)코맥 Apparatus for inspecting clog of injection needle
CN205252231U (en) * 2015-12-24 2016-05-25 张世海 Facial cosmetic syringe

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Effective date of registration: 20230627

Address after: 232001 British Union House Phase I, Taining Street, Shannan New District, Huainan City, Anhui Province

Patentee after: Shen Yuzhe

Address before: 234000 No.1 Yanxi Road, Suzhou Suma Modern Industrial Park, Suzhou, Anhui Province

Patentee before: ANHUI ZHI CHENG HE XIN FOOD TECHNOLOGY CO.,LTD.