CN117297826A - Multifunctional continuous injector - Google Patents

Multifunctional continuous injector Download PDF

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Publication number
CN117297826A
CN117297826A CN202311134835.1A CN202311134835A CN117297826A CN 117297826 A CN117297826 A CN 117297826A CN 202311134835 A CN202311134835 A CN 202311134835A CN 117297826 A CN117297826 A CN 117297826A
Authority
CN
China
Prior art keywords
sleeve
gun body
injection
triggering
locking mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311134835.1A
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Chinese (zh)
Inventor
陆军
朱杰
赵丽杰
倪琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caina Technology Co ltd
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Caina Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caina Technology Co ltd filed Critical Caina Technology Co ltd
Priority to CN202311134835.1A priority Critical patent/CN117297826A/en
Publication of CN117297826A publication Critical patent/CN117297826A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
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    • 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
    • A—HUMAN NECESSITIES
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    • 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
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    • A61M5/31—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
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    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
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    • A61M5/31535—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
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    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • A61M5/31568—Means keeping track of the total dose administered, e.g. since the cartridge was inserted
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • A61M5/31571—Means preventing accidental administration
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • A61M5/31573—Accuracy improving means
    • A—HUMAN NECESSITIES
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    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A—HUMAN NECESSITIES
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    • 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
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    • A61M5/321—Means for protection against accidental injuries by used needles
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    • A—HUMAN NECESSITIES
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Epidemiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses a multifunctional continuous injector.A protective sleeve retracted towards a needle cylinder part is arranged at an injection needle part, and a guide locking mechanism is sleeved outside the needle cylinder part; the protective sleeve is arranged in the guide locking mechanism in a sliding connection manner, and the guide locking mechanism is connected with the injector matrix in a quick-dismantling manner; the injector base body is also provided with a triggering mechanism, the triggering mechanism comprises a triggering end, a interlocking part and an action end, the protection sleeve is used as the triggering end, the retraction movement of the protection sleeve is used as the triggering action, the interlocking part is driven to unlock the action end, and the action end is a push handle. According to the invention, the protection of the injection needle is formed by the telescopic movement of the protection sleeve, so that the situation of accidental injury is avoided; and the protection sleeve stretches and contracts to be linked with the trigger mechanism to form locking of injection, so that the situations of medicament waste and the like are avoided. Compared with the prior art, the screw thread adjusting device has the advantages that the adjustment and control of injection dosage are convenient and quick, the quantitative is more accurate, and the device can be suitable for rapid dosage change during large-scale injection work.

Description

Multifunctional continuous injector
Technical Field
The invention relates to the technical field of continuous syringes, in particular to a multifunctional continuous syringe.
Background
Nowadays, the livestock breeding industry rapidly develops, the veterinary injector is widely applied, and when epidemic prevention or disease injection is carried out on livestock and poultry, the veterinary injector needs to repeatedly dispense medicines for each livestock and poultry due to large livestock and poultry breeding amount, and each livestock and poultry is completely injected, and the livestock and poultry breeding amount is also required to be prepared again or extracted from a prepared medicine bottle, so that the workload is large, the continuous-use injector is mostly adopted, and the needle of the injector is lack of effective protection.
For example, patent document 1, CN201320667911.0 discloses a continuous injector for animals, which comprises a handle, an injection cylinder, a piston, an injection needle and a bottle cap, wherein the injection needle is connected with the front end of the injection cylinder through the needle cap, the piston is arranged in the injection cylinder, a piston connecting rod is fixedly connected with the handle, and the injection cylinder is connected with the front end of the handle through a nut. Most continuous injectors in the prior art are similar to the prior art in that a bare injection needle is used, so that a veterinarian is very easy to prick the needle on the body by mistake during high-strength continuous injection operation, thereby causing injury to the user.
For this purpose, patent document 2, application number CN202120181110.8 discloses a veterinary continuous injector, which comprises a handle, a drug delivery tube, a continuous drug supply assembly and a stable drug delivery assembly, wherein the handle is held by a veterinary hand, the drug delivery tube is fixedly connected with the front end of the handle, the continuous drug supply assembly is connected with and arranged above the drug delivery tube, the stable drug delivery assembly is connected with and arranged at the front end of the drug delivery tube, the continuous drug supply assembly comprises a fixed connection block, a connection tube, a drug storage tank, an observation window, a scale mark, a rotary cover and an air vent, and the stable drug delivery assembly comprises a miniature booster pump, a control button, a drug delivery head, a needle, a baffle, a placing ring, a compression spring and a fixed sleeve. In the technology, the needle head is provided with the fixing sleeve and the spring, the fixing sleeve is adopted to form a certain protection for the periphery of the needle head, but the fixing sleeve does not have the locking function for the syringe, that is, can push out medicines under any condition, thereby causing the waste of medicines. Secondly, although the fixing sleeve has a certain retraction amount, the retraction travel is insufficient to complete the operation of replacing the needle, and the use of the fixing sleeve is inconvenient.
Since veterinary injection is performed with animals of different sizes, the injection dose is continuously changed, and as disclosed in patent document 3 application number CN201610065049.4, an adjustable quantitative continuous injector comprises: a needle cylinder having a scale; a piston push handle which is arranged at the rear port of the needle cylinder in a mode of adjusting the feeding depth; the medicine tank is arranged above the needle cylinder through the rotating seat, so that the medicine tank can swing in the front-back direction of the needle cylinder, and a one-way conduction valve is arranged at the tail part of the medicine tank; one end of the liquid guiding rubber tube is in sealing connection with the tube orifice of the medicine tank, and the other end of the liquid guiding rubber tube is in sealing communication with the needle cylinder; and a fixing member for fixing the medicine tank to the rotation seat so that the medicine tank cannot move. According to the invention, the medicine tank is adjustable, so that when the injector is used for injecting in the vertical direction, the medicine liquid can be fully conveyed into the needle cylinder, and simultaneously, the medicine tank is matched with the scales on the needle cylinder, so that the effects of rapid quantitative and precise quantitative continuous injection are realized. The fixed dose injection is realized by limiting the stroke of the piston pushing handle through the threaded fit of the screw rod and the nut, but the rotating adjustment process of the threaded fit consumes a long time, so that a veterinarian can repeatedly consume more time when adjusting the dose.
In view of the above, it is necessary to propose a multi-functional continuous syringe to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problems and provides a multifunctional continuous injector.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the multifunctional continuous injector comprises an injector matrix, wherein a protective sleeve which retreats towards a needle cylinder part is arranged at an injection needle part, a guide locking mechanism is sleeved outside the needle cylinder part, and the guide locking mechanism is used for guiding the retreating of the protective sleeve and locking and limiting the retreating of the protective sleeve; the protective sleeve is arranged in the guide locking mechanism in a sliding connection manner, and the guide locking mechanism is connected with the injector matrix in a quick-dismantling manner;
the syringe base body is also provided with a trigger mechanism, the trigger mechanism comprises a trigger end, a linkage part and an action end, the retraction movement of the protective sleeve serving as the trigger end serves as a trigger action, the linkage part is driven to unlock the action end, and the action end is a push handle.
Further, the injector base body also comprises a gun body part, the needle cylinder part of the injector base body is arranged at the front end of the gun body part, the push handle penetrates through the gun body part and penetrates out from the rear end of the gun body part, and the handle is connected to the rear lower part of the gun body part and used for driving the push handle to move; the front end of the gun body part and the syringe part are coaxially provided with slots for connecting with the guide locking mechanism.
Further, the guide locking mechanism comprises an inner sleeve, an outer sleeve and an anti-drop ring, the outer sleeve is detachably and rotatably connected with the outer part of the inner sleeve, one end of the inner sleeve is connected with the slot, the other end of the inner sleeve is in sliding connection with the protective sleeve, the outer sleeve and the inner sleeve are rotated relatively to lock or unlock the protective sleeve, the outer wall of the protective sleeve is provided with an L-shaped convex rail, the L-shaped convex rail comprises an axial rail parallel to a longitudinal axis and a circumferential rail arranged along the circumferential direction, the end part of the axial rail is connected with the circumferential rail, and the inner wall of the outer sleeve is provided with an inner convex block matched with the L-shaped convex rail;
the anti-drop ring is used for preventing the protection sleeve and the outer sleeve from falling out of the inner sleeve, the anti-drop ring is fixedly connected with the inner sleeve, a step check ring used for limiting the outer sleeve is arranged on the periphery of the anti-drop ring, and a guide notch matched with the circumferential rail is formed in the inner wall of the anti-drop ring.
Further, the triggering end comprises a triggering rod connected to the end part of the protective sleeve, and through holes for the triggering rod to pass through are formed in the inner bottom wall of the inner sleeve and the front wall of the gun body part;
the interlocking part comprises a swinging part, the swinging part is of a U-shaped structure, a rotating shaft, a pushing rod and blocking strips are arranged on the swinging part, the rotating shafts are arranged on the outer walls of the two sides of the swinging part, blocking strips are arranged on the inner side walls of the swinging part, the pushing rod is arranged at the U-shaped bottom of the swinging part, and the pushing rod is arranged in parallel with the rotating shafts; the two ends of the rotating shaft are rotatably connected in the gun body part, the rotating shaft is sleeved with a torsion spring for driving the swinging part to return to the vertical plane direction, the triggering rod is matched with the pushing rod, so that the swinging part rotates, the blocking strip is positioned on a horizontal plane after rotating from the vertical plane, the inner walls of the two sides of the gun body part are provided with arc-shaped tracks taking the rotating shaft as the circle center, and the end parts of the pushing rod are arranged in the arc-shaped tracks and used for limiting the rotation amplitude of the swinging part;
the action part comprises stop blocks arranged on two sides of the push handle, the stop blocks are matched with stop bars, the stop bars are stopped at one side of the stop blocks close to the needle cylinder part when being positioned on a vertical plane and limit the push handle, and the stop bars are positioned on the upper side of the stop blocks in parallel when being positioned on a horizontal plane in a rotating way, so that the stop blocks lose limit;
the front wall of the gun body part is also provided with an injection hole for the push handle to pass through, the side part of the push handle is also provided with an anti-rotation side rib, and the side part of the injection hole is provided with a side opening for guiding the anti-rotation side rib.
Further, injection dose adjustment mechanism is equipped with to the back wall of rifle body portion, injection dose adjustment mechanism includes dose adjustment carousel, rotatory ladder, ladder fixture block the dose adjustment carousel rotates to be connected on the back wall of rifle body portion, and its centre of a circle department is equipped with the hole that supplies to push away the handle and pass, is equipped with rotatory ladder on the inner wall of hole, and rotatory ladder is to encircle to push away the handle setting to rotatory ladder still includes the breach position that its head end and tail end set up, push away the fixed ladder fixture block that is equipped with of handle lateral wall, ladder fixture block and rotatory ladder cooperate and form the change to pushing away handle axial displacement stroke.
Further, the injection device is also provided with a continuous fluid infusion structure, the fluid infusion structure is used for continuously supplementing injection medicament to the needle cylinder part in the continuous injection process, the tail part of the push handle is provided with a fluid supply port, the push handle is provided with a central core hole communicated to the needle cylinder part along the axis direction, one end of the central core hole is communicated to the fluid supply port, the other end of the central core hole is communicated to the needle cylinder part through the center of the piston, and a one-way valve is arranged in the piston.
Further, the guiding locking mechanism is connected with the gun body part through a rotating positioning structure and comprises clamping lugs and outer clamping blocks, the outer clamping blocks are arranged on the outer side of the front end of the gun body part, the clamping lugs are fixedly arranged on the outer side of the end part of the outer sleeve, and the outer clamping blocks are rotated into the clamping lugs by rotation of the outer sleeve to fix the guiding locking mechanism with the gun body part.
Further, the end part of the protective sleeve is provided with a sterilizing cotton fixing ring, the upper wall of the gun body part is provided with a sterilizing water installation part, the sterilizing water installation part is connected with the sterilizing cotton fixing ring through a hose, and a regulating valve for controlling the flow of sterilizing water is arranged below the sterilizing water installation part.
Further, a visual window is arranged through the inner sleeve and the outer sleeve, and the visual window is used for observing the inner needle cylinder part.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the protection of the injection needle is formed by the telescopic movement of the protection sleeve, so that the situation of accidental injury is avoided; and the protection sleeve stretches and contracts to be linked with the trigger mechanism to form locking on injection, so that the medicament can be pushed out only during injection, and the conditions of medicament waste and the like are avoided.
2. The disinfectant can be supplied to the disinfectant cotton at the front end through the hose, and the supply quantity of the disinfectant can be controlled through the regulating valve, so that the disinfectant is convenient to use.
3. Compared with the prior art, the screw thread adjusting device has the advantages that the adjustment and control of injection dosage are convenient and quick, the quantitative is more accurate, and the device can be suitable for rapid dosage change during large-scale injection work.
4. The condition of the inner needle cylinder part can be visually checked through the visual window.
Drawings
FIG. 1 is a schematic view of the structure of a syringe base of a multi-functional continuous syringe according to the present application;
FIG. 2 is a schematic view of the internal structure of a multi-functional continuous syringe according to the present application;
FIG. 3 is a connecting structure diagram of the protection sleeve, the inner sleeve and the outer sleeve in the application;
FIG. 4 is a schematic view of the structure between the trigger lever and the gun body in the present application;
FIG. 5 is a block diagram of the swing member of the present application in a vertical planar position;
FIG. 6 is a schematic view of the trigger lever pushing the swing member to rotate in a horizontal position;
FIG. 7 is a schematic view of the structure of the dose dial in the present application;
in the figure: 1. a syringe base; 2. a needle cylinder part; 3. a piston; 4. a push handle; 5. a grip; 6. a protective sleeve; 7. a gun body part; 8. a slot; 9. an inner sleeve; 10. an outer sleeve; 11. anti-slip ring; 12. l-shaped convex rail; 13. an axial rail; 14. a circumferential rail; 15. an inner bump; 16. a step retainer ring; 17. a guide notch; 18. a trigger lever; 19. a through hole; 20. a swinging member; 21. a rotating shaft; 22. pushing the rod; 23. a blocking bar; 24. a torsion spring; 25. an arc-shaped track; 26. a stop block; 27. a side opening; 28. a dose dial; 29. rotating the step; 30. a stepped clamping block; 31. a notch position; 32. a liquid supply port; 33. anti-rotation side ribs; 34. a clamping lug; 35. an outer clamping block; 36. a sterilized cotton fixing ring; 37. a sterilizing water installation part; 38. a hose; 39. a regulating valve; 40. a visual window.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1, the multifunctional continuous injector comprises an injector base body 1, the injector base body 1 comprises a needle cylinder part 2 for containing injection medicament, an injection needle is arranged at the front end of the needle cylinder part 2, a piston 3 for pushing the medicament is arranged in the needle cylinder part 2, one side of the piston 3, which is far away from the injection needle, is connected with a push handle 4, the push handle 4 and the needle cylinder part 2 are coaxially arranged, the multifunctional continuous injector also comprises a handle 5 for driving the push handle 4 to reciprocate, in actual use, a veterinary hand handle 5 is used for inserting the injection needle into livestock, then the handle 5 is extruded, the handle 5 is used for driving the push handle 4 to push the medicament to push out from the injection needle, a protective sleeve 6 retracted towards the needle cylinder part 2 is arranged at the injection needle, and can be understood that the protective sleeve 6 is completely covered outside the injection needle to form protection during non-injection, the end of the protective sleeve 6 is tightly pushed against the false puncture during injection, the protective sleeve 6 is unlocked, the protective sleeve 6 can be compressed and then moved to the needle cylinder part 2 is completely exposed for injection, and a guide locking mechanism is sleeved outside the needle cylinder 2 for limiting the protective sleeve 6 to retract; the protection sleeve 6 is coaxially arranged with the guide locking mechanism, the protection sleeve 6 is slidably connected in the guide locking mechanism, and the guide locking mechanism is quickly disassembled and connected with the syringe base body 1;
as shown in fig. 2, the syringe base 1 is further provided with a triggering mechanism, the triggering mechanism includes a triggering end, a linkage part, and an actuating end, the retraction movement of the protective sleeve 6 serving as the triggering end serves as a triggering action, the linkage part is driven to unlock the actuating end, and the actuating end is a push handle 4.
The injector base body 1 further comprises a gun body part 7, the needle cylinder part 2 of the injector base body 1 is arranged at the front end of the gun body part 7, the push handle 4 penetrates through the gun body part 7 and penetrates out from the rear end of the gun body part 7, and the grip 5 is connected to the rear lower part of the gun body part 7 and used for driving the push handle 4 to move; the front end of the gun body part 7 and the syringe part 2 are coaxially provided with a slot 8 for connecting with a guiding locking mechanism.
As shown in fig. 2 and 3, the guiding locking mechanism comprises an inner sleeve 9, an outer sleeve 10 and an anti-drop ring 11, the outer sleeve 10 is detachably and rotatably connected with the outer part of the inner sleeve 9, one end of the inner sleeve 9 is connected with the slot 8, the other end is connected with the protecting sleeve 6 in a sliding way, the outer sleeve 10 and the inner sleeve 9 rotate relatively to lock or unlock the protecting sleeve 6, the outer wall of the protecting sleeve 6 is provided with an L-shaped convex rail 12, the L-shaped convex rail 12 comprises an axial rail 13 parallel to a longitudinal axis and a circumferential rail 14 arranged along the circumferential direction, the end part of the axial rail 13 is connected with the circumferential rail 14, the inner wall of the outer sleeve 10 is provided with an inner convex block 15 matched with the L-shaped convex rail 12, in actual use, when the outer sleeve 10 rotates positively, the inner convex block 15 faces the outer wall of the axial rail 13, as shown in fig. 3 a, the inner convex block 15 is not blocked by the range of the circumferential rail 14, and the protecting sleeve 6 can move freely and telescopically when the protecting sleeve is contracted, the injection needle can be exposed for injection; on the contrary, as shown in fig. 3B, when the outer sleeve 10 rotates reversely, the inner protrusion 15 rotates into the range of the circumferential rail 14, and then the circumferential rail 14 will block the outer side of the inner protrusion 15, so that the protection sleeve 6 cannot shrink, so that when the veterinarian is not required to perform injection, the outer sleeve 10 should rotate reversely to lock the inner block corresponding to the circumferential rail 14 for protection.
As shown in fig. 3C, the anti-drop ring 11 is used for preventing the protection sleeve 6 and the outer sleeve 10 from being removed from the inner sleeve 9, the anti-drop ring 11 is fixedly connected with the inner sleeve 9, a step retainer 16 used for limiting the outer sleeve 10 is arranged at the periphery of the anti-drop ring 11, and a guiding notch 17 matched with the circumferential rail 14 is arranged on the inner wall of the anti-drop ring 11.
The triggering end comprises a triggering rod 18 connected to the end part of the protection sleeve 6, as shown in fig. 4, through holes 19 for the triggering rod 18 to pass through are formed in the inner bottom wall of the inner sleeve 9 and the front wall of the gun body 7, it can be understood that through holes 19 are formed in the inner bottom wall of the inner sleeve 9 and the front wall of the gun body 7, the two through holes 19 are in a combined state after the inner sleeve 9 and the gun body 7 are assembled, so that the triggering rod 18 can be inserted into the gun body 7 to trigger, the position of the triggering rod 18 can be pre-positioned by the through holes 19 in the inner bottom wall of the inner sleeve 9, and accordingly, the triggering rod 18 can be accurately inserted into the gun body 7 when the guide locking mechanism is installed on the gun body 7.
The interlocking part comprises a swinging component 20, the swinging component 20 is of a U-shaped structure, a rotating shaft 21, a pushing rod 22 and blocking strips 23 are arranged on the swinging component 20, the rotating shafts 21 are arranged on the outer walls of the two sides of the swinging component 20, blocking strips 23 are arranged on the inner side walls of the swinging component 20, the pushing rod 22 is arranged at the U-shaped bottom of the swinging component 20, and the pushing rod 22 is arranged in parallel with the rotating shafts 21; the two ends of the rotating shaft 21 are rotatably connected in the gun body part 7, the rotating shaft 21 is sleeved with a torsion spring 24 for driving the swinging component 20 to return to the vertical plane direction, the triggering rod 18 is matched with the pushing rod 22, so that the swinging component 20 rotates, the blocking bar 23 is positioned in the horizontal plane after rotating from the vertical plane where the triggering rod 18 is positioned, during actual injection, the outer sleeve 10 is rotated to unlock the protecting sleeve 6, the protecting sleeve 6 at the front end of the injector is pushed to the livestock skin, the retraction of the protecting sleeve 6 is formed under the reaction force, so that the injection needle penetrates into the livestock skin, and as shown in fig. 5, when the injection is not pressed, the protecting sleeve is retracted, as shown in fig. 6, the gun head is extruded on the livestock body, the protecting sleeve is retracted, in the process, the protecting sleeve 6 is retracted, the triggering rod 18 is inserted into the gun body part 7 after passing through the through hole 19, the end of the triggering rod 18 is pushed onto the pushing rod 22, the original vertical plane is driven to rotate on the horizontal plane, namely, the changing position of the blocking bar 23 is positioned on the plane where the blocking bar 23 is positioned, namely, the arc-shaped end 25 is changed, namely, the arc-shaped end of the rotating rod is positioned on the arc-shaped rotating shaft part 25 is used for changing the position of the arc-shaped end part 25, and the arc-shaped end is used for limiting the rotating shaft 25;
the action part comprises stop blocks 26 arranged at two sides of the pushing handle 4, the stop blocks 26 are matched with blocking strips 23, when the blocking strips 23 are positioned on a vertical plane, the blocking strips 23 are blocked at one side of the stop blocks 26 close to the needle cylinder part 2 and limit the pushing handle 4, when the blocking strips 23 are rotated and positioned on a horizontal plane, the blocking strips 23 are positioned on the upper sides of the stop blocks 26 in parallel, so that the stop blocks 26 are out of limit, when the swinging part 20 is automatically reset to the vertical plane under the action of torsion springs 24 in actual use, the blocking strips 23 block the column stop blocks 26, and at the moment, the handle 5 cannot push the pushing handle 4, so that medicament loss caused by false extrusion is avoided; when the protective sleeve 6 is retracted during injection operation, the swinging member 20 rotates to rotate the blocking bar 23 to a horizontal position above the stopper 26, and at this time, the push handle 4 is driven by the grip 5 to perform injection of medicine.
The front wall of the gun body 7 is further provided with an injection hole through which the push handle 4 passes, as shown in fig. 4, the side portion of the push handle 4 is further provided with an anti-rotation side rib 33, and the side portion of the injection hole is provided with a side opening 27 for guiding the anti-rotation side rib 33.
Further, the rear wall of the gun body 7 is provided with an injection dose adjusting mechanism, the injection dose adjusting mechanism comprises a dose adjusting turntable 28, a rotating step 29 and a step clamping block 30, the dose adjusting turntable 28 is rotatably connected to the rear wall of the gun body 7, an inner hole for the push handle 4 to pass through is formed in the circle center of the injection dose adjusting turntable 28, the inner wall of the inner hole is provided with the rotating step 29, the rotating step 29 is arranged around the push handle 4, the rotating step 29 further comprises a notch position 31 arranged at the head end and the tail end of the rotating step 29, the side wall of the push handle 4 is fixedly provided with the step clamping block 30, the step clamping block 30 is matched with the rotating step 29 to form a change of the axial movement stroke of the push handle 4, as shown in fig. 2 and 7, in actual use, the rotating dose adjusting turntable 28 can rotate the rotating step 29 around the push handle 4, the rotating step 29 is provided with a plurality of steps corresponding to control different movement strokes of the push handle 4, and the notch position 31 is aligned with the step clamping block 30, at the moment, the stroke of the push handle 4 is not limited, and the medicament in the part 2 can be pushed out completely by the maximum stroke; if it is required to precisely control the injection of smaller doses each time, the steps of the stepped clamping block 30 are opposite to the stepped clamping block 30, when the lower steps are opposite to the stepped clamping block 30, the moving stroke of the pushing handle 4 is longer, corresponding to the injection of larger doses, otherwise, when the higher steps are opposite to the stepped clamping block 30, the stroke of the pushing handle 4 is shortened, and the injection dose is reduced.
Further, a continuous fluid infusion structure is further provided, the fluid infusion structure is used for continuously supplementing injection medicament to the needle cylinder part 2 in the continuous injection process, a fluid supply port 32 is formed in the tail of the pushing handle 4, a central core hole communicated to the needle cylinder part 2 is formed in the axial direction of the pushing handle 4, one end of the central core hole is communicated to the fluid supply port 32, the other end of the central core hole is communicated to the needle cylinder part 2 through the center of the piston 3, a one-way valve is arranged in the piston 3, the flow direction of the one-way valve is controlled to be that the medicament enters the needle cylinder part 2 through the central core hole in a one-way mode, and when the pushing handle 4 pulls the piston 3 to retreat, the one-way valve can be opened, so that external medicament can be supplemented into the needle cylinder part 2 to continuously perform injection.
Further, the guiding locking mechanism is connected with the gun body 7 through a rotating positioning structure, and comprises a clamping lug 34 and an outer clamping block 35, an outer clamping block 35 is arranged at the outer side of the front end of the gun body 7, a clamping lug 34 is fixedly arranged at the outer side of the end part of the outer sleeve 10, the outer clamping block 35 is rotated into the clamping lug 34 by rotation of the outer sleeve 10 to fix the guiding locking mechanism and the gun body 7, in actual use, as shown in fig. 1 and 7, the guiding locking mechanism and the gun body 7 are separated from each other, the syringe 2 or the injection needle can be conveniently replaced, after replacement is completed, the inner sleeve 9 is aligned to the position of the slot 8, then the outer sleeve 10 is rotated, the clamping lug 34 is positioned on the outer clamping block 35, and meanwhile, the limit locking of the outer sleeve 10 to the protection sleeve 6 is released by rotation, so that injection operation can be performed, that is, the protection sleeve 6 can be activated to move backwards only when the guiding locking mechanism and the gun body 7 are firmly connected.
Further, the end of the protection sleeve 6 is provided with a sterilizing cotton fixing ring 36, as shown in fig. 2, the upper wall of the gun body 7 is provided with a sterilizing water installation part 37, the sterilizing water installation part 37 is connected with the sterilizing cotton fixing ring 36 through a hose 38, and a regulating valve 39 for controlling the flow of sterilizing water is arranged below the sterilizing water installation part 37.
Further, as shown in fig. 5, a viewing window 40 is provided through the inner sleeve 9, the outer sleeve 10, the viewing window 40 being used for viewing the inside cylinder part 2.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (9)

1. The multifunctional continuous injector comprises an injector matrix (1) and is characterized in that a protective sleeve (6) which retreats towards a needle cylinder part (2) is arranged at an injection needle, a guide locking mechanism is sleeved outside the needle cylinder part (2), and the guide locking mechanism is used for guiding the retreating of the protective sleeve (6) and locking and limiting the retreating of the protective sleeve (6); the protective sleeve (6) is connected and arranged in the guide locking mechanism in a sliding way, and the guide locking mechanism is connected with the syringe base body (1) in a quick-dismantling way;
the injector base body (1) is also provided with a triggering mechanism, the triggering mechanism comprises a triggering end, a linkage part and an action end, the retraction movement of the protective sleeve (6) serving as the triggering end serves as triggering action, the linkage part is driven to unlock the action end, and the action end is a push handle (4).
2. The multifunctional continuous injector according to claim 1, wherein the injector base body (1) further comprises a gun body part (7), the syringe part (2) of the injector base body (1) is arranged at the front end of the gun body part (7), the push handle (4) penetrates through the gun body part (7) and penetrates out of the rear end of the gun body part (7), and the grip (5) is connected below the rear of the gun body part (7) and used for driving the push handle (4) to move; the front end of the gun body part (7) and the syringe part (2) are coaxially provided with a slot (8) for connecting with the guiding locking mechanism.
3. A multifunctional continuous injector according to claim 2, characterized in that the guiding locking mechanism comprises an inner sleeve (9), an outer sleeve (10) and an anti-drop ring (11), the outer sleeve (10) is detachably connected outside the inner sleeve (9), one end of the inner sleeve (9) is connected with the slot (8), the other end is connected with the protecting sleeve (6) in a sliding way, the relative rotation of the outer sleeve (10) and the inner sleeve (9) is completed to lock or unlock the protecting sleeve (6), the outer wall of the protecting sleeve (6) is provided with an L-shaped convex rail (12), the L-shaped convex rail (12) comprises an axial rail (13) parallel to a longitudinal axis, a circumferential rail (14) arranged along the circumferential direction, the end part of the axial rail (13) is connected with the circumferential rail (14), and the inner wall of the outer sleeve (10) is provided with an inner convex block (15) matched with the L-shaped convex rail (12);
the anti-drop ring (11) is used for preventing the protection sleeve (6) and the outer sleeve (10) from falling out of the inner sleeve (9), the anti-drop ring (11) is fixedly connected with the inner sleeve (9), a step check ring (16) used for limiting the outer sleeve (10) is arranged on the periphery of the anti-drop ring (11), and a guide notch (17) matched with the circumferential rail (14) is formed in the inner wall of the anti-drop ring (11).
4. A multi-functional continuous injector according to claim 3, characterized in that the trigger end comprises a trigger lever (18) connected to the end of the protective sleeve (6), the inner bottom wall of the inner sleeve (9) and the front wall of the body part (7) being provided with a through hole (19) through which the trigger lever (18) passes;
the interlocking part comprises a swinging component (20), the swinging component (20) is of a U-shaped structure, a rotating shaft (21), a pushing rod (22) and blocking strips (23) are arranged on the swinging component (20), the rotating shaft (21) is arranged on the outer walls of the two sides of the swinging component (20), the blocking strips (23) are arranged on the inner side walls of the two sides of the swinging component (20), the pushing rod (22) is arranged at the U-shaped bottom of the swinging component (20), and the pushing rod (22) is arranged in parallel with the rotating shaft (21); the two ends of the rotating shaft (21) are rotatably connected in the gun body part (7), a torsion spring (24) for driving the swinging component (20) to return to the vertical direction is sleeved on the rotating shaft (21), the triggering rod (18) is matched with the pushing rod (22) to enable the swinging component (20) to rotate, the blocking strip (23) is positioned on a horizontal plane after rotating from a vertical plane, arc-shaped tracks (25) taking the rotating shaft (21) as the center of a circle are arranged on the inner walls of two sides of the gun body part (7), and the end parts of the pushing rod (22) are arranged in the arc-shaped tracks (25) to limit the rotation amplitude of the swinging component (20);
the action part comprises stop blocks (26) arranged on two sides of the pushing handle (4), the stop blocks (26) are matched with the stop bars (23), the stop bars (23) are stopped at one side of the stop blocks (26) close to the needle cylinder part (2) when being positioned on a vertical plane and limit the pushing handle (4), and when the stop bars (23) rotate on a horizontal plane, the stop bars (23) are positioned on the upper sides of the stop blocks (26) in parallel to enable the stop blocks (26) to lose limit;
the front wall of the gun body part (7) is also provided with an injection hole for the push handle (4) to pass through, the side part of the push handle (4) is also provided with an anti-rotation side rib (33), and the side part of the injection hole is provided with a side opening (27) for guiding the anti-rotation side rib (33).
5. The multifunctional continuous injector according to claim 4, wherein the rear wall of the gun body (7) is provided with an injection dosage adjusting mechanism, the injection dosage adjusting mechanism comprises a dosage adjusting rotary table (28), a rotary step (29) and a step clamping block (30), the dosage adjusting rotary table (28) is rotatably connected to the rear wall of the gun body (7), an inner hole for the push handle (4) to pass through is formed in the circle center of the dosage adjusting rotary table, the rotary step (29) is arranged on the inner wall of the inner hole, the rotary step (29) is arranged around the push handle (4), the rotary step (29) further comprises a notch position (31) arranged at the head end and the tail end of the rotary step, the step clamping block (30) is fixedly arranged on the side wall of the push handle (4), and the step clamping block (30) is matched with the rotary step (29) to form the change of the axial movement stroke of the push handle (4).
6. The multifunctional continuous injector according to claim 2, further comprising a continuous fluid infusion structure, wherein the fluid infusion structure is used for continuously infusing medicament into the syringe portion (2) in a continuous injection process, a fluid supply port (32) is arranged at the tail of the pushing handle (4), a central core hole communicated into the syringe portion (2) is arranged on the pushing handle (4) along the axis direction, one end of the central core hole is communicated with the fluid supply port (32), the other end of the central core hole is communicated into the syringe portion (2) through the center of the piston (3), and a one-way valve is arranged in the piston (3).
7. A multifunctional continuous injector according to claim 3, characterized in that the guiding locking mechanism is connected with the gun body part (7) through a rotation positioning structure and comprises a clamping lug (34) and an outer clamping block (35), an outer clamping block (35) is arranged on the outer side of the front end of the gun body part (7), the clamping lug (34) is fixedly arranged on the outer side of the end part of the outer sleeve (10), and the outer clamping block (35) is rotated into the clamping lug (34) by rotation of the outer sleeve (10) to fix the guiding locking mechanism with the gun body part (7).
8. A multifunctional continuous injector according to claim 2, characterized in that the end of the protective sleeve (6) is provided with a sterilizing cotton fixing ring (36), the upper wall of the gun body (7) is provided with a sterilizing water mounting part (37), the sterilizing water mounting part (37) is connected with the sterilizing cotton fixing ring (36) through a hose (38), and a regulating valve (39) for controlling the sterilizing water flow is arranged below the sterilizing water mounting part (37).
9. A multi-functional continuous injector according to claim 3, characterized in that a visual window (40) is provided through the inner sleeve (9), the outer sleeve (10), the visual window (40) being used for viewing the inner needle cylinder part (2).
CN202311134835.1A 2023-09-04 2023-09-04 Multifunctional continuous injector Pending CN117297826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311134835.1A CN117297826A (en) 2023-09-04 2023-09-04 Multifunctional continuous injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311134835.1A CN117297826A (en) 2023-09-04 2023-09-04 Multifunctional continuous injector

Publications (1)

Publication Number Publication Date
CN117297826A true CN117297826A (en) 2023-12-29

Family

ID=89261272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311134835.1A Pending CN117297826A (en) 2023-09-04 2023-09-04 Multifunctional continuous injector

Country Status (1)

Country Link
CN (1) CN117297826A (en)

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