CN115245609B - Disposable sterile injection needle - Google Patents
Disposable sterile injection needle Download PDFInfo
- Publication number
- CN115245609B CN115245609B CN202110847834.6A CN202110847834A CN115245609B CN 115245609 B CN115245609 B CN 115245609B CN 202110847834 A CN202110847834 A CN 202110847834A CN 115245609 B CN115245609 B CN 115245609B
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- China
- Prior art keywords
- liquid
- injection
- needle
- plate
- guide connector
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Classifications
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- 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
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
-
- 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
- A61M5/42—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 desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
- A61M5/425—Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means
-
- 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
- A61M5/31—Details
- A61M2005/3101—Leak prevention means for proximal end of syringes, i.e. syringe end opposite to needle mounting end
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a disposable sterile injection needle, wherein the upper end surface of a shell is rotationally connected with an adjusting knob, the driving control of the adjusting knob is provided with a liquid guide connector, the liquid guide connector is movably arranged in the shell, the output end of the liquid guide connector is communicated with a needle seat, one end of the needle seat, which is away from the liquid guide connector, is communicated with the injection needle, the needle seat is movably arranged in the shell, the adjusting knob is used for controlling the reciprocating motion of the liquid guide connector in the shell, the lower end surface of the shell is fixedly connected with an adsorption tube, and the disposable sterile injection needle is more convenient to use and effectively prevents liquid leakage in the use process.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a disposable sterile injection needle.
Background
Because of the beauty nature of females, the development of the cosmetic industry is also faster and faster, many females keep young by means of drug injection, wherein injection by means of a hydro-optical needle is a common cosmetic means in the industry, and hydro-optical needle beautification is actually a skin care therapy of injection type, and during injection, a special instrument "electronic injector control boosting device" is used to inject a required cosmetic injection into a dermis layer closely adhered to the epidermis. After injection, the skin becomes moist and bright.
The invention discloses a five-hole water optical needle, which comprises a lower needle seat, a splitter plate, an adjusting plate and an upper needle seat which are sequentially arranged; the position of the lower needle seat, which is close to the flow distribution plate, is provided with a first groove, the flow distribution plate is arranged in the first groove, four flow distribution holes are symmetrically arranged at the position of the flow distribution plate, which is close to the first groove, the flow distribution holes penetrate through the flow distribution plate, four first flow distribution blocks are symmetrically arranged between the flow distribution holes on one side, which is far away from the lower needle seat, of the flow distribution plate, and the first flow distribution blocks are arranged to protrude out of the first groove; five needle hole sleeves are uniformly arranged on one side of the upper needle seat, an opening is formed on the other side of the upper needle seat, five upper needle holes are correspondingly formed on one side, close to the upper needle seat, of the adjusting plate, and the adjusting plate is arranged in the upper needle seat and matched with the needle hole sleeves. The invention has simple structure and good sealing performance, and the distribution balance of liquid in the needle plate is improved by arranging the flow dividing plate inside the needle plate, so that the use effect is good.
The existing hydro-optical needle injector is complex in operation during use, and the needle is exposed outside to easily cause puncture or needle pollution, and the injection depth is difficult to grasp well during injection due to the fact that the needle needs to be injected into the dermis.
Accordingly, there is a need to provide a disposable sterile injection needle that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a disposable sterile injection needle to solve the technical problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a disposable's aseptic syringe needle, includes the casing, the up end of casing rotates and is connected with adjust knob, adjust knob drive control has the liquid guide to connect, liquid guide connects the activity setting in the inside of casing, adjust knob's up end rotates and is connected with the upper cover plate, liquid guide connects the output intercommunication has the needle file, the one end that the needle file deviates from liquid guide and connects is linked together with the syringe needle, just the needle file activity sets up in the inside of casing, liquid guide connects the side terminal surface middle part has inlayed the external screw thread, just adjust knob's middle part has been seted up with the internal screw thread of external screw thread looks adaptation, adjust knob is used for controlling liquid guide to connect at the inside reciprocating motion of casing, the lower terminal surface fixedly connected with adsorption tube of casing.
When the injection device is used, the injection liquid is connected with the liquid guide joint through the electronic injector control boosting device and injected, the injection effect of timing and quantification can be achieved in clinical application, the injection liquid is guided into the injection needle through the shell along with the liquid guide joint, the injection needle is injected into the skin, the liquid guide joint is movably arranged in the shell, the expansion and contraction of the inside of the adsorption tube of the injection needle can be controlled through the movement of the control liquid guide joint, the injection needle is prevented from being polluted by contracting into the inside of the adsorption tube when the injection needle is idle, the injection needle is driven to stretch out by the sliding liquid guide joint during injection, the injection needle can be used, the upper end face of the shell is rotationally connected with the adjusting knob, the movement of the liquid guide joint in the shell can be controlled through the threaded fit of the outer end face of the adjusting knob, the operation is convenient, the injection needle can adopt a needle tip part for secondary cutting edge, the pain feeling of puncturing the skin is reduced, and the injection needle can be set into five needles, nine needles or more according to requirements.
As a further scheme of the invention, the side end face of the adsorption tube is provided with a negative pressure joint in a penetrating way, one end of the negative pressure joint, which is away from the adsorption tube, is communicated with a negative pressure device, and the surface of the adsorption tube is provided with scale marks and direction indication arrows.
When the medical injector is specifically used, the injection needle can be moved and extend out of the adsorption tube through rotating the adjusting knob, the extending length of the injection needle can be judged through the scales on the surface of the adsorption tube, a user can grasp the injection depth of the injection needle conveniently, and further negative pressure connectors are communicated with the side ends of the adsorption tube and are communicated with the negative pressure device, the negative pressure device can specifically use a medical-grade negative pressure tractor to provide pressure, and negative pressure is generated after the adsorption tube is contacted with the skin surface of an injector through the negative pressure device, so that the adsorption tube is adsorbed with the skin of the injector, and the displacement or falling of the injection needle in the injection process is avoided, so that the injection effect is prevented from being influenced.
As a further scheme of the invention, the inner wall of the shell is attached with sealing rubber, a liquid leakage cavity is formed in the sealing rubber, and the needle seat is movably arranged in the liquid leakage cavity.
As a further scheme of the invention, a leakage-proof gap is arranged between the needle seat and the liquid leakage cavity, and a reflux bulge is arranged at the contact joint part of the sealing rubber and the injection needle, and the reflux bulge penetrates through the shell and extends to the outer surface of the shell.
When the needle seat is specifically used, the needle seat is movably arranged in the liquid leakage cavity, a leakage-proof gap is formed between the liquid leakage cavity and the needle seat, so that when the needle seat moves in the liquid leakage cavity, the pressure intensity of the liquid leakage cavity is at a proper value, the leakage-proof gap can be used for preventing the needle seat from overflowing liquid leakage, when the liquid leakage is generated at the bottom of the needle seat, the liquid leakage is filled into the leakage-proof gap, the leakage-proof gap is closed under the action of liquid tension, thereby preventing liquid from further leaking, a backflow protrusion is arranged to prevent liquid in the injection needle from flowing back, and when the overflow is effectively avoided through the backflow protrusion, the overflow liquid flows back to the liquid leakage cavity along with the injection needle.
As a further scheme of the invention, one end of the liquid guide connector, which is arranged in the shell, is fixedly connected with a connecting plate, the lower end surface of the connecting plate is fixedly connected with a backflow panel, and one end of the liquid guide connector, which is away from the connecting plate, is provided with a quick-release structure.
As a further scheme of the invention, the quick-dismantling structure comprises a first connecting pipe, a liquid injection push plate, a second connecting pipe and a movable sleeve, wherein the second connecting pipe is fixedly connected to the upper end face of the liquid guide connector, the lower part of the movable sleeve is in sliding sleeve connection with the inner part of the second connecting pipe, the first connecting pipe is in sliding sleeve connection with the upper part of the movable sleeve, and the liquid injection push plate is embedded in the middle part of the movable sleeve.
As a further scheme of the invention, the inner wall of the first connecting pipe is provided with a fixed groove, and the middle part of the liquid injection push plate is fixedly connected with a thimble.
When the liquid level tension device is specifically used, the first connecting pipe can be made of elastic materials, a pipeline for liquid injection or an ampere bottle and the like are fixed through the fixing groove, and meanwhile, the thimble is arranged, so that the liquid level tension of the opening of the ampere bottle can be broken, and liquid medicine in the ampere bottle can quickly flow into the liquid guide connector.
As a further scheme of the invention, the liquid injection push plate comprises a liquid injection push plate main body, a first liquid passing hole, a closing plate, a second liquid passing hole, a movable groove and a spring, wherein the liquid injection push plate main body is embedded in the middle of a movable sleeve, the first liquid passing hole is formed in the middle of the liquid injection push plate main body, the movable groove is formed in the liquid injection push plate main body, the closing plate is movably connected in the movable groove, the spring is fixedly connected to the inner wall of the movable groove, one end of the spring, which is away from the movable groove, is fixedly connected with the closing plate, the second liquid passing hole is formed in the closing plate, and the closing plate is matched with the first liquid passing hole.
When the liquid medicine injection device is specifically used, the closing plate is elastically connected to the inside of the movable groove through the spring, the closing plate is pressed when liquid medicine is injected, the spring is contracted, the first liquid passing hole is further communicated with the second liquid passing hole, the liquid medicine flows into the inside of the liquid guide connector through the first liquid passing hole and the second liquid passing hole through the movable liquid injection pushing plate, the liquid guide connector can be made of transparent materials, the liquid state inside the liquid guide connector is convenient to penetrate through, after the liquid medicine is injected into the liquid guide connector, the closing plate is loosened, the closing plate is ejected under the action of the spring, the first liquid passing hole is further closed, the internal pressure of the liquid guide connector is increased through the downward pressing of the liquid injection pushing plate, the liquid medicine can be further made to flow into the injection needle through the liquid guide connector, the liquid medicine is not required to be pumped out from the ampere bottle, and then the liquid injection is convenient to operate.
As a further scheme of the invention, the inside of the needle seat is provided with a flow passage, the inner wall of the flow passage is provided with a sliding groove, the inside of the flow passage is connected with a first magnetic suction plate in a sliding manner, the side end surface of the first magnetic suction plate is provided with a sliding block matched with the sliding block, the middle part of the first magnetic suction plate is fixedly connected with a flow blocking block, and four corners of the upper end surface of the first magnetic suction plate are fixedly connected with movable connecting rods.
As a further scheme of the invention, the reflow panel is matched with the surface of the first magnetic suction plate, the reflow panel is fixedly connected with the second magnetic suction plate which is attracted with the first magnetic suction plate, the surface of the reflow panel is provided with a connecting rod groove matched with the movable connecting rod, the middle part of the reflow panel is provided with a flow blocking groove matched with the flow blocking block, and the flow blocking groove is communicated with the liquid outlet end of the liquid guide connector.
When the liquid guide connector is used specifically, the needle seat is fixedly connected with the lower end face of the connecting plate, the first magnetic suction plate is connected with the lower end face of the connecting plate in a sliding mode through the sliding block and the sliding groove, when liquid is injected into the liquid guide connector, the second magnetic suction plate is separated from the first magnetic suction plate due to the fact that liquid pressure in the liquid guide connector is used for enabling the liquid outlet end of the liquid guide connector to be communicated with the flow passing groove, liquid flows out of the liquid guide connector along with the flow passing groove to be injected into the injection needle, when liquid is not injected, the first magnetic suction plate and the second magnetic suction plate are mutually adsorbed under the action of magnetic force, and then the flow blocking groove is matched with the flow blocking block, so that the liquid outlet end of the liquid guide connector is closed, liquid is effectively prevented from flowing back and polluting liquid medicine in the liquid guide connector, meanwhile, the movable connecting rod is matched with the connecting rod groove, the stability of the assembly is guaranteed when the second magnetic suction plate and the first magnetic suction plate are mutually sucked, the phenomenon that the flow blocking groove is not completely sealed is avoided, and liquid leakage is generated.
Working principle: injection liquid is injected through the liquid guide connector, the injection liquid is guided into the injection needle through the shell along with the liquid guide connector, the injection liquid is injected into the skin through the injection needle, the liquid guide connector is movably arranged in the shell, the expansion of the inside of an adsorption tube of the injection needle can be controlled by controlling the movement of the liquid guide connector, the injection needle is prevented from being polluted by contracting into the inside of the adsorption tube when the injection liquid is idle, the injection needle is driven to stretch out by sliding the liquid guide connector during use, an adjusting knob is rotationally connected to the upper end face of the shell, the movement of the liquid guide connector in the shell can be controlled by rotating the adjusting knob through threaded fit of the adjusting knob and the outer end face of the liquid guide connector, the operation is more convenient, the injection needle can be moved and stretched out of the adsorption tube through rotating the adjusting knob, the stretching length of the injection needle can be judged through scales on the surface of the adsorption tube, the injection depth of the injection needle is convenient for a user to grasp, and the side end of the adsorption tube is further communicated with a negative pressure connector which is communicated with a negative pressure device, the negative pressure device can specifically use a medical-grade negative pressure tractor to provide pressure, the adsorption tube is contacted with the skin surface of the injector and then generates negative pressure through the negative pressure device, the adsorption tube is adsorbed with the skin of the injector, the injection effect is prevented from being influenced by displacement or falling of the injection needle in the injection process, meanwhile, a leakage-proof gap is arranged between the leakage-proof cavity and the needle seat, when the needle seat moves in the leakage-proof cavity, the pressure in the leakage-proof cavity is at a proper value, the leakage-proof gap can be used for preventing the needle seat from overflowing out, when the bottom of the needle seat generates leakage, the leakage liquid is filled into the inside of the leakage-proof gap, the leakage-proof gap is closed under the action of liquid tension, thereby preventing liquid from leaking further, the backflow bulge is arranged to prevent liquid in the injection needle from flowing back, when the backflow bulge effectively avoids the overflow liquid generated by the injection needle, the overflow liquid flows back to the inside of the liquid leakage cavity along with the injection needle to pollute the device, the first connecting pipe can be made of elastic materials, a pipeline or an ampere bottle for injecting liquid is fixed through the fixed groove, the ejector pin is arranged at the same time, the ejector pin can break the liquid level tension of the opening of the ampere bottle, so that the liquid medicine in the ampere bottle can quickly flow into the inside of the liquid guide connector, the closing plate is elastically connected in the movable groove through the spring, the spring is contracted when the liquid medicine is injected, the first liquid through hole is communicated with the second liquid through pressing the closing plate, the liquid medicine flows into the inside of the liquid guide connector through the first liquid through hole and the second liquid through hole through moving the liquid injection pushing plate, and the liquid guide connector can be mined with transparent materials, the liquid state inside the liquid guide connector is convenient to penetrate, after the liquid medicine is injected into the liquid guide connector, the closing plate is loosened, the closing plate is ejected under the action of the spring, the first liquid passing hole is further closed, the internal pressure of the liquid guide connector is increased by pressing the liquid injection pushing plate downwards, the liquid medicine can flow into the injection needle through the liquid guide connector for injection, the liquid medicine is not required to be pumped out of the ampere bottle and then injected into the injection needle, the operation is more convenient, the needle seat is fixedly connected with the lower end face of the connecting plate, the first magnetic suction plate is slidably connected in the inside of the flow passing groove through the sliding block and the sliding groove, when the liquid is injected into the liquid guide connector, the liquid pressure in the liquid guide connector enables the second magnetic suction plate to be separated from the first magnetic suction plate, the liquid outlet end of the liquid guide connector is communicated with the flow passing groove, the liquid flows out along with the flow passing groove to be injected into the injection needle through the liquid guide connector, when no liquid is injected, the first magnetic suction plate and the second magnetic suction plate are mutually adsorbed under the action of magnetic force, so that the choke groove is matched with the choke block, the liquid outlet end of the liquid guide connector is closed, liquid is effectively prevented from flowing back and polluting liquid medicine in the liquid guide connector under the state of no liquid injection, meanwhile, the upper end face of the first magnetic suction plate is provided with a movable connecting rod, the movable connecting rod is matched with the connecting rod groove, the stability of assembly is ensured when the second magnetic suction plate and the first magnetic suction plate are mutually attracted, the incomplete sealing of the choke groove is avoided, liquid leakage is generated, and the liquid backflow in the device is effectively prevented from polluting the liquid medicine in the liquid guide connector.
The injection liquid is injected through the liquid guide connector when the injection liquid injection device is used, the injection liquid is guided into the injection needle through the shell along with the liquid guide connector, the injection liquid is injected into the skin through the injection needle, the liquid guide connector is movably arranged in the shell, the expansion and contraction of the inside of the adsorption tube of the injection needle can be controlled by controlling the movement of the liquid guide connector, the injection needle is prevented from being polluted by contracting the injection needle into the adsorption tube when the injection liquid injection device is idle, the injection liquid can be used by sliding the liquid guide connector to drive the injection needle to extend out when the injection liquid injection device is used, the device has strong adaptability, the injection depth of the injection needle can be adjusted according to different patients, the adjusting knob is rotationally connected to the upper end face of the shell, the movement travel of the liquid guide connector in the shell can be controlled by rotating the adjusting knob through the threaded fit of the outer end face of the adjusting knob, the injection depth of the injection needle is controlled, and the injection depth of the injection needle is convenient to operate.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the semi-sectional structure of the present invention;
FIG. 3 is a schematic diagram of an exploded construction of the present invention;
FIG. 4 is a schematic view of a liquid guiding joint according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4A in accordance with the present invention;
FIG. 6 is a schematic diagram of a liquid injection push plate according to the present invention;
FIG. 7 is a schematic diagram showing a sectional structure of a liquid injection push plate according to the present invention;
fig. 8 is a schematic view of the hub structure of the present invention;
FIG. 9 is a schematic view of a return panel structure of the present invention;
fig. 10 is a schematic sectional view of the housing of the present invention.
In the figure: 1. a liquid-guiding joint; 2. an upper cover plate; 3. an adjustment knob; 4. a negative pressure joint; 5. an injection needle; 6. an adsorption tube; 7. a housing; 8. sealing rubber; 9. a needle stand; 10. an external thread; 11. reflowing the panel; 12. a connecting plate; 13. a thimble; 14. a fixing groove; 15. a first connection pipe; 16. a liquid injection pushing plate; 17. a second connection pipe; 18. a movable sleeve; 19. a liquid injection push plate main body; 20. a first liquid passing hole; 21. a closing plate; 22. a second liquid passing hole; 23. a movable groove; 24. a spring; 25. a flow trough; 26. a slide block; 27. a first magnetic plate; 28. a movable connecting rod; 29. a chute; 30. a choke block; 31. a second magnetic plate; 32. a link slot; 33. a flow blocking groove; 34. a reflow bump; 35. a liquid leakage cavity; 36. and (3) preventing gaps.
Detailed Description
Example 1
As shown in fig. 1-4, a disposable sterile injection needle comprises a housing 7, an upper end face of the housing 7 is rotationally connected with an adjusting knob 3, driving control of the adjusting knob 3 is provided with a liquid guide connector 1, the liquid guide connector 1 is movably arranged in the housing 7, the upper end face of the adjusting knob 3 is rotationally connected with an upper cover plate 2, an output end of the liquid guide connector 1 is communicated with a needle seat 9, one end of the needle seat 9 deviating from the liquid guide connector 1 is communicated with the injection needle 5, the needle seat 9 is movably arranged in the housing 7, an external thread 10 is embedded in the middle of a side end face of the liquid guide connector 1, an internal thread matched with the external thread 10 is arranged in the middle of the adjusting knob 3, the adjusting knob 3 is used for controlling the reciprocating motion of the liquid guide connector 1 in the housing 7, and the lower end face of the housing 7 is fixedly connected with an adsorption tube 6.
When the injection device is used, the injection liquid is connected with the liquid guide connector 1 through the electronic injector control boosting device and injected, the injection effect of timing and quantification can be achieved in clinical application, the injection liquid is guided into the injection needle 5 through the shell 7 along with the liquid guide connector 1, the injection is carried out through the injection needle 5, the liquid guide connector 1 is movably arranged in the shell 7, the expansion and contraction of the inside of the adsorption tube 6 of the injection needle 5 can be controlled through the movement of the control liquid guide connector 1, the injection needle 5 is prevented from being polluted by contracting the injection needle 5 into the adsorption tube 6 when the injection device is idle, the injection device can be used by sliding the liquid guide connector 1 to drive the injection needle 5 to stretch out during injection, the adjusting knob 3 is rotationally connected to the upper end face of the shell 7, the movement of the liquid guide connector 1 in the shell 7 can be controlled through the threaded fit of the outer end face of the adjusting knob 3, the operation is convenient, the injection needle 5 can be driven by adopting the tip part to be secondarily sharpened, the pain of the puncture skin is reduced, and meanwhile, the injection needle 5 can be set into five needles, nine needles or more according to requirements.
As shown in fig. 1, a negative pressure joint 4 is arranged on the side end surface of the adsorption tube 6 in a penetrating manner, a negative pressure device is communicated with one end of the negative pressure joint 4, which is away from the adsorption tube 6, and graduation marks and direction indication arrow diagrams are arranged on the surface of the adsorption tube 6.
During the use, can make syringe needle 5 remove and stretch out the inside of adsorption tube 6 through rotating adjust knob 3, can judge the length that stretches out of syringe needle 5 through the scale on adsorption tube 6 surface, the user of being convenient for grasps syringe needle 5's injection depth, and further side intercommunication at adsorption tube 6 has negative pressure to connect 4, negative pressure connects 4 intercommunication negative pressure device, negative pressure device can specifically use medical grade negative pressure tractor to provide pressure, produce the negative pressure through negative pressure device after contacting adsorption tube 6 and syringe skin surface for adsorption tube 6 adsorbs with syringe skin, avoids the aversion of syringe needle 5 or drops in the injection process to influence the injection effect.
As shown in fig. 1-3 and 10, the inner wall of the shell 7 is attached with sealing rubber 8, a liquid leakage cavity 35 is formed in the sealing rubber 8, and the needle seat 9 is movably arranged in the liquid leakage cavity 35.
As shown in fig. 1-3 and 10, a leakage-proof gap 36 is arranged between the needle seat 9 and the liquid leakage cavity 35, and a backflow protrusion 34 is arranged at the contact joint of the sealing rubber 8 and the injection needle 5, and the backflow protrusion 34 penetrates through the shell 7 and extends to the outer surface of the shell 7.
When the liquid leakage preventing device is used, the needle seat 9 is movably arranged in the liquid leakage cavity 35, the leakage preventing gap 36 is arranged between the liquid leakage cavity 35 and the needle seat 9, so that when the needle seat 9 moves in the liquid leakage cavity 35, the pressure in the liquid leakage cavity 35 is at an appropriate value, the leakage preventing gap 36 can be used for preventing the needle seat 9 from generating liquid leakage and overflowing, when liquid leakage is generated at the bottom of the needle seat 9, the liquid leakage is filled in the leakage preventing gap 36, the leakage preventing gap 36 is closed under the action of liquid tension, so that liquid is prevented from being leaked further, the backflow protrusion 34 is arranged to prevent liquid in the injection needle 5 from flowing back, and when liquid overflow is effectively prevented from being generated by the injection needle 5 through the backflow protrusion 34, the overflowing liquid flows back into the liquid leakage cavity 35 along with the injection needle 5.
Example two
As shown in fig. 1-4, on the basis of the first embodiment, a connecting plate 12 is fixedly connected to one end of the liquid guiding joint 1, which is placed in the casing 7, a backflow panel 11 is fixedly connected to the lower end surface of the connecting plate 12, and a quick-release structure is arranged at one end of the liquid guiding joint 1, which is away from the connecting plate 12.
As shown in fig. 1-6, the quick-release structure comprises a first connecting pipe 15, a liquid injection push plate 16, a second connecting pipe 17 and a movable sleeve 18, wherein the second connecting pipe 17 is fixedly connected to the upper end face of the liquid guide joint 1, the lower part of the movable sleeve 18 is slidably sleeved in the second connecting pipe 17, the first connecting pipe 15 is slidably sleeved on the upper part of the movable sleeve 18, and the liquid injection push plate 16 is embedded in the middle part of the movable sleeve 18.
As shown in fig. 1-6, a fixing groove 14 is formed in the inner wall of the first connecting pipe 15, and a thimble 13 is fixedly connected to the middle of the liquid injection push plate 16.
When the liquid medicine injection device is used, the first connecting pipe 15 can be made of elastic materials, a pipeline for injecting liquid or an ampere bottle and the like are fixed through the fixing groove 14, meanwhile, the thimble 13 is arranged, and the thimble 13 can break the liquid level tension of the opening of the ampere bottle, so that the liquid medicine in the ampere bottle can quickly flow into the liquid medicine connector 1.
As shown in fig. 1-7, the liquid injection push plate 16 includes a liquid injection push plate main body 19, a first liquid passing hole 20, a closing plate 21, a second liquid passing hole 22, a movable groove 23 and a spring 24, wherein the liquid injection push plate main body 19 is embedded in the middle of the movable sleeve 18, the first liquid passing hole 20 is arranged in the middle of the liquid injection push plate main body 19, the movable groove 23 is arranged in the liquid injection push plate main body 19, the closing plate 21 is movably connected in the movable groove 23, the spring 24 is fixedly connected to the inner wall of the movable groove 23, one end of the spring 24, which is away from the movable groove 23, is fixedly connected with the closing plate 21, the second liquid passing hole 22 is arranged in the closing plate 21, and the closing plate 21 is matched with the first liquid passing hole 20.
When the liquid medicine injection device is used, the closing plate 21 is elastically connected in the movable groove 23 through the spring 24, when liquid medicine is injected, the closing plate 21 is pressed, the spring 24 is contracted, the first liquid passing hole 20 is communicated with the second liquid passing hole 22, the liquid medicine flows into the inside of the liquid guide connector 1 through the first liquid passing hole 20 and the second liquid passing hole 22 by moving the liquid injection pushing plate 16, the liquid medicine connector 1 can be made of transparent materials, the liquid medicine can conveniently penetrate through the liquid state in the liquid guide connector 1, after the liquid medicine is injected into the liquid guide connector 1, the closing plate 21 is loosened, the closing plate 21 is ejected under the action of the spring 24, the first liquid passing hole 20 is further closed, the pressure in the liquid guide connector 1 is increased by pressing the liquid injection pushing plate 16, the liquid medicine can flow into the injection needle 5 through the liquid guide connector 1, the liquid medicine is not required to be pumped out of an ampere bottle, and the operation is convenient.
Example III
As shown in fig. 1-4 and 8-9, on the basis of the first or second embodiment, the inside of the needle seat 9 is provided with a through-flow groove 25, the inner wall of the through-flow groove 25 is provided with a sliding groove 29, the inside of the through-flow groove 25 is slidably connected with a first magnetic suction plate 27, the side end surface of the first magnetic suction plate 27 is provided with a sliding block 26 matched with the sliding block 26, the middle part of the first magnetic suction plate 27 is fixedly connected with a choke block 30, and four corners of the upper end surface of the first magnetic suction plate 27 are fixedly connected with movable connecting rods 28.
As shown in fig. 1-4 and 8-9, the surface of the backflow panel 11 is matched with the surface of the first magnetic suction plate 27, the backflow panel 11 is fixedly connected with a second magnetic suction plate 31 which is attracted with the first magnetic suction plate 27, a connecting rod groove 32 which is matched with the movable connecting rod 28 is formed in the surface of the backflow panel 11, a flow blocking groove 33 which is matched with the flow blocking block 30 is formed in the middle of the backflow panel 11, and the flow blocking groove 33 is communicated with the liquid outlet end of the liquid guide joint 1.
During the use, needle file 9 and the lower terminal surface fixed link of connecting plate 12, first magnetism suction plate 27 passes through slider 26 and spout 29 sliding connection in the inside of crossing chute 25, when liquid is injected in the liquid guide joint 1, because liquid pressure makes second magnetism suction plate 31 and first magnetism suction plate 27 separate mutually in the liquid guide joint 1, make liquid guide joint 1 play liquid end and cross chute 25 and link with each other, liquid flows out along with crossing the inside of chute 25 injection needle 5 through liquid guide joint 1, when not annotating the liquid, first magnetism suction plate 27 and second magnetism suction plate 31 adsorb each other under the magnetic force effect, and then make the adaptation of resistance chute 33 and resistance 30, make liquid guide joint 1 play liquid end closure, effectively prevent not annotating the liquid state under, liquid produces backward flow and then produces the pollution to the liquid medicine in the liquid guide joint 1, the up end at first magnetism suction plate 27 is equipped with movable connecting rod 28 simultaneously, movable connecting rod 28 and chute 32 adaptation, the stability of second magnetism suction plate 31 and first magnetism suction plate 27 when inhaling each other is guaranteed, the assembly is airtight, thereby the resistance 33 is not produced completely to the leakage.
Working principle: injection liquid is injected through the liquid guide connector 1, the injection liquid is guided into the injection needle 5 through the shell 7 along with the liquid guide connector 1, the injection liquid is injected into the skin through the injection needle 5, the liquid guide connector 1 is movably arranged in the shell 7, the expansion and contraction of the inside of the adsorption tube 6 of the injection needle 5 can be controlled by controlling the movement of the liquid guide connector 1, the injection needle 5 is prevented from being polluted by contracting into the inside of the adsorption tube 6 when the injection liquid guide connector is idle, the injection liquid can be used by sliding the liquid guide connector 1 to drive the injection needle 5 to stretch out when the injection liquid guide connector is used, the adjusting knob 3 is rotationally connected to the upper end surface of the shell 7, the movement of the liquid guide connector 1 in the shell 7 can be controlled by rotating the adjusting knob 3 through the threaded fit of the outer end surface of the adjusting knob 3, the injection needle 5 can be moved and stretched out of the adsorption tube 6 through rotating the adjusting knob 3 conveniently in operation, the extending length of the injection needle 5 can be judged through the scale on the surface of the adsorption tube 6, the injection depth of the injection needle 5 is convenient for a user to master, and further, the negative pressure connector 4 is communicated with the negative pressure device at the side end of the adsorption tube 6, the negative pressure device can specifically use a medical-grade negative pressure tractor to provide pressure, the adsorption tube 6 is contacted with the surface of the skin of the injector and then generates negative pressure through the negative pressure device, so that the adsorption tube 6 is adsorbed with the skin of the injector, the displacement or falling of the injection needle 5 in the injection process is avoided, the injection effect is influenced, meanwhile, the needle seat 9 is movably arranged in the liquid leakage cavity 35, a leakage prevention gap 36 is arranged between the liquid leakage cavity 35 and the needle seat 9, when the needle seat 9 moves in the liquid leakage cavity 35, the pressure in the liquid leakage cavity 35 is at an appropriate value, and the leakage prevention gap 36 can be used for preventing the needle seat 9 from generating liquid leakage overflow, when leakage occurs at the bottom of the needle seat 9, the leakage is filled into the leakage-proof gap 36, the leakage-proof gap 36 is closed under the action of liquid tension, so that liquid is prevented from further leakage, a backflow protrusion 34 is arranged to prevent liquid in the injection needle 5 from backflow, when overflow is effectively avoided by the backflow protrusion 34, the overflow liquid flows back to the inside of the leakage cavity 35 along with the injection needle 5, pollution is generated to the device, the first connecting pipe 15 can be made of elastic materials, a pipeline for liquid injection or an ampere bottle and the like are fixed through the fixed groove 14, meanwhile, the thimble 13 is arranged, the thimble 13 can break the liquid level tension of the bottleneck of the ampere bottle, so that liquid medicine in the ampere bottle can quickly flow into the liquid guide connector 1, the closing plate 21 is elastically connected to the inside of the movable groove 23 through the spring 24, the closing plate 21 is pressed during liquid medicine injection, so that the spring 24 is contracted, the first through-liquid hole 20 is communicated with the second through-liquid hole 22, the liquid medicine flows into the liquid guide joint 1 through the first through-liquid hole 20 and the second through-liquid hole 22 by moving the liquid injection pushing plate 16, the liquid guide joint 1 can be made of transparent materials, the liquid state inside the liquid guide joint 1 is convenient to penetrate, after the liquid medicine is injected into the liquid guide joint 1, the closing plate 21 is loosened, the closing plate 21 is popped up under the action of the spring 24 to further seal the first through-liquid hole 20, the pressure inside the liquid guide joint 1 is increased by pressing the liquid injection pushing plate 16, the liquid medicine can flow into the injection needle 5 through the liquid guide joint 1 for injection, the liquid medicine is not required to be pumped out from an ampere bottle and then injected, the operation is convenient, the needle seat 9 is fixedly connected with the lower end face of the connecting plate 12, the first magnetic suction plate 27 is connected in the inside the through the chute 25 in a sliding way through the sliding block 26 and the chute 29, when the liquid is injected into the liquid guide connector 1, the second magnetic suction plate 31 and the first magnetic suction plate 27 are separated due to the liquid pressure in the liquid guide connector 1, the liquid outlet end of the liquid guide connector 1 is communicated with the overflow groove 25, the liquid flows out through the liquid guide connector 1 and is injected into the injection needle 5 along with the overflow groove 25, when the liquid is not injected, the first magnetic suction plate 27 and the second magnetic suction plate 31 are mutually adsorbed under the action of magnetic force, the blocking groove 33 and the blocking block 30 are further matched, the liquid outlet end of the liquid guide connector 1 is closed, the liquid is effectively prevented from flowing back in the state of not injecting the liquid, the liquid in the liquid guide connector 1 is polluted, meanwhile, the movable connecting rod 28 and the connecting rod groove 32 are matched on the upper end face of the first magnetic suction plate 27, the assembling stability is guaranteed when the second magnetic suction plate 31 and the first magnetic suction plate 27 are mutually absorbed, the blocking groove 33 is prevented from being incompletely sealed, and the liquid leakage is prevented from being generated, and the liquid in the device is effectively prevented from flowing back to pollute the liquid in the liquid guide connector 1.
Claims (4)
1. A disposable sterile injection needle comprising a housing, characterized in that: the upper end face of the shell is rotationally connected with an adjusting knob, the adjusting knob is used for controlling the liquid guiding joint to move, the liquid guiding joint is movably arranged in the shell, the output end of the liquid guiding joint is communicated with a needle seat, one end of the needle seat, which is away from the liquid guiding joint, is communicated with an injection needle, the needle seat is movably arranged in the shell, the adjusting knob is used for controlling the liquid guiding joint to reciprocate in the shell, and the lower end face of the shell is fixedly connected with an adsorption tube; the upper end face of the adjusting knob is rotationally connected with an upper cover plate, an external thread is embedded in the middle of the side end face of the liquid guide connector, and an internal thread matched with the external thread is arranged in the middle of the adjusting knob; the liquid guide connector is fixedly connected with a connecting plate at one end arranged in the shell, the lower end surface of the connecting plate is fixedly connected with a backflow panel, and a quick-dismantling structure is arranged at one end, away from the connecting plate, of the liquid guide connector; the quick-release structure comprises a first connecting pipe, a liquid injection push plate, a second connecting pipe and a movable sleeve, wherein the second connecting pipe is fixedly connected to the upper end face of the liquid guide connector, the lower part of the movable sleeve is in sliding sleeve connection with the inside of the second connecting pipe, the first connecting pipe is in sliding sleeve connection with the upper part of the movable sleeve, and the liquid injection push plate is embedded in the middle part of the movable sleeve; the inner wall of the first connecting pipe is provided with a fixed groove, and the middle part of the liquid injection push plate is fixedly connected with a thimble; the liquid injection push plate comprises a liquid injection push plate main body, a first liquid passing hole, a closing plate, a second liquid passing hole, a movable groove and a spring, wherein the liquid injection push plate main body is embedded in the middle of a movable sleeve, the first liquid passing hole is formed in the middle of the liquid injection push plate main body, the movable groove is formed in the liquid injection push plate main body, the closing plate is movably connected in the movable groove, the spring is fixedly connected to the inner wall of the movable groove, one end of the spring, which is away from the movable groove, is fixedly connected with the closing plate, the second liquid passing hole is formed in the closing plate, and the closing plate is matched with the first liquid passing hole; the inner part of the needle seat is provided with a flow passage, the inner wall of the flow passage is provided with a sliding groove, the inner part of the flow passage is connected with a first magnetic suction plate in a sliding manner, the side end surface of the first magnetic suction plate is provided with a sliding block matched with the sliding block, the middle part of the first magnetic suction plate is fixedly connected with a flow blocking block, and four corners of the upper end surface of the first magnetic suction plate are fixedly connected with movable connecting rods; the backflow panel is matched with the surface of the first magnetic suction plate, the backflow panel is fixedly connected with a second magnetic suction plate which is attracted with the first magnetic suction plate, a connecting rod groove matched with the movable connecting rod is formed in the surface of the backflow panel, a flow blocking groove matched with the flow blocking block is formed in the middle of the backflow panel, and the flow blocking groove is communicated with the liquid outlet end of the liquid guide connector.
2. A single use sterile injection needle according to claim 1, wherein: the side end face of the adsorption tube is communicated with a negative pressure joint, one end of the negative pressure joint, which deviates from the adsorption tube, is communicated with a negative pressure device, and the surface of the adsorption tube is provided with scale marks and direction indication arrows.
3. A single use sterile injection needle according to claim 1, wherein: the inner wall laminating of casing has sealing rubber, the weeping chamber has been seted up to sealing rubber inside, the needle file activity sets up the inside in weeping chamber.
4. A single use sterile injection needle according to claim 3, wherein: a leakage-proof gap is arranged between the needle seat and the liquid leakage cavity, a backflow protrusion is arranged at the contact joint position of the sealing rubber and the injection needle, and the backflow protrusion penetrates through the shell and extends to the outer surface of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847834.6A CN115245609B (en) | 2021-07-27 | 2021-07-27 | Disposable sterile injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847834.6A CN115245609B (en) | 2021-07-27 | 2021-07-27 | Disposable sterile injection needle |
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| Publication Number | Publication Date |
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| CN115245609A CN115245609A (en) | 2022-10-28 |
| CN115245609B true CN115245609B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110847834.6A Active CN115245609B (en) | 2021-07-27 | 2021-07-27 | Disposable sterile injection needle |
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| CN (1) | CN115245609B (en) |
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| US20090149830A1 (en) * | 2007-12-07 | 2009-06-11 | Donald Spector | Intelligent needle technology for acupuncture and injection of cosmetic preparations subcutaneously |
| JPWO2011125560A1 (en) * | 2010-03-31 | 2013-07-08 | テルモ株式会社 | Prefilled syringe |
| EP3795196B1 (en) * | 2019-09-18 | 2022-05-11 | Heraeus Medical GmbH | Device for temporary local application of fluids |
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| CN105498047A (en) * | 2016-01-14 | 2016-04-20 | 江苏丞宇米特医疗科技有限公司 | Low-pressure needle-free injection device |
| CN211461600U (en) * | 2019-11-29 | 2020-09-11 | 山东伍岳医疗科技有限公司 | Novel needleless injection booster |
| CN111569190A (en) * | 2020-04-13 | 2020-08-25 | 昆山安卓医疗科技有限公司 | Five-hole water laser needle |
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| CN115245609A (en) | 2022-10-28 |
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