CN113198068B - Fly special needle that evenly easily pushes away - Google Patents
Fly special needle that evenly easily pushes away Download PDFInfo
- Publication number
- CN113198068B CN113198068B CN202110510770.0A CN202110510770A CN113198068B CN 113198068 B CN113198068 B CN 113198068B CN 202110510770 A CN202110510770 A CN 202110510770A CN 113198068 B CN113198068 B CN 113198068B
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- CN
- China
- Prior art keywords
- needle
- ring
- piston
- push
- groove
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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
- A61M5/315—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
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
Abstract
The invention relates to the technical field of Feite needles, and discloses a Feite needle which is uniform and easy to push, and solves the problems that the existing Feite needle is not stable when pushed and is not uniform when pushed; the annular groove, the positioning ring, the air cavity and the sealing ring are arranged at the outer end of the piston, the contact between the piston and the inner wall of the needle cylinder is improved through the arrangement of the sealing ring, the sealing ring is inwards extruded under stress, the air cavity in the positioning ring is compressed, meanwhile, the air cavity has outwards tension, the sealing ring is abutted against the inner wall of the needle cylinder, and the sealing performance of the piston is better by matching with the sealing performance of the piston.
Description
Technical Field
The invention belongs to the technical field of Feite needles, and particularly relates to a Feite needle which is uniform and easy to push.
Background
The existing Feite needle is usually moved by pressing a push rod through a thumb when in use, so that a piston withdraws from injection of a solution, the force of the thumb cannot be controlled during injection in such operation, the device cannot inject uniformly, and the push rod is higher during initialization of the device, so that the pushing process is not stable, and therefore, the Feite needle which is uniform and easy to push needs to be designed.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the Feite needle which is uniform and easy to push, and effectively solves the problems that the Feite needle is not stable when pushed and the pushing injection is not uniform.
In order to achieve the purpose, the invention provides the following technical scheme: the Feite needle comprises a needle cylinder, wherein the lower end of the needle cylinder is connected with a needle head, a piston is movably connected inside the needle cylinder, the middle of the upper end of the piston is connected with a push rod, two sides of the outer end of the push rod are respectively provided with a sawtooth groove, the upper end of the push rod is in threaded connection with a cap, the upper end of the cap is connected with a pull ring, and the upper end of the needle cylinder is sleeved with a pushing assembly relative to the outer part of the push rod;
the promotion subassembly includes the casing, the inside downside of casing rotates through the connecting axle and is connected with the ring body, the ring body both ends all are connected with the connecting seat, the connecting seat is inside to rotate through first round pin axle and is connected with U type frame, inside one side of U type frame rotates through second round pin axle and is connected with the kelly, kelly and sawtooth groove joint, two connecting seat one ends all are connected with the connecting rod, connecting rod one end runs through to extend to casing external connection and has the press panel, and the connecting rod runs through casing department and has seted up the notch, the connecting rod is located the notch, two U type frame upper portion one sides all are connected with the spring holder, be connected with the spring between two spring holders.
Preferably, the mounting groove has been seted up at piston upper end middle part, and the ring channel has been seted up at piston outer end middle part, and ring channel internal connection has the position circle, and the inside air cavity of having seted up of position circle, the draw-in groove has been seted up to the position circle outside, and the outside cover of position circle is equipped with the sealing washer, and the inside draw-in groove department that corresponds of sealing washer is connected with the fixture block, fixture block and draw-in groove joint.
Preferably, both sides of the upper end of the needle cylinder are connected with lug plates, and the lower ends of the lug plates are connected with positioning rings.
Preferably, the lower end of the pushing assembly is symmetrically connected with arc-shaped plates, and the arc-shaped plates are in threaded connection with the needle cylinder through nuts.
Preferably, one side of the upper portion of the U-shaped frame is connected with a fixing lug, one end of the fixing lug is connected with an elastic rope, one end of the elastic rope extends to the outside of the shell and is connected with a connecting ring, and the elastic rope penetrates through the shell and is provided with a through hole.
Preferably, the middle part of the upper end of the push rod is provided with a moving groove, the connecting shaft is positioned in the moving groove, and the width of the moving groove is the same as the diameter of the connecting shaft.
Preferably, the needle head is connected with the syringe barrel through a threaded connection mode.
Preferably, the cross sections of the positioning ring and the sealing ring are both in a table structure, and the outer end of the sealing ring is arc-shaped.
Preferably, one end of the elastic rope is rotatably connected with a guide wheel relative to the inside of the shell, and the guide wheel is positioned at the upper end of the elastic rope.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the pushing assembly structure is matched through the sawtooth grooves and the moving grooves which are formed in the push rod, when the device is used, the pressing plate is pressed, the connecting seat drives the ring body to swing up and down around the connecting shaft under the transmission of the connecting rod, and then the U-shaped frames on the two sides respectively drive the clamping rods to be clamped with the sawtooth grooves on the two sides, so that the push rod gradually moves downwards, and the piston pushes the solution in the needle cylinder to the needle head to be injected into skin;
(2) the annular groove, the positioning ring, the air cavity and the sealing ring are arranged at the outer end of the piston, the contact between the piston and the inner wall of the needle cylinder is improved through the arrangement of the sealing ring, the sealing ring is extruded inwards under stress, the air cavity in the positioning ring is compressed, meanwhile, the air cavity has outward tension, the sealing ring is abutted against the inner wall of the needle cylinder, and the sealing performance of the piston is better by matching with the sealing performance of the piston;
(3) the forefinger and the middle finger are positioned in the positioning ring when the syringe is used through the ear plates and the positioning rings arranged at the two ends of the upper part of the syringe, so that the syringe is kept relatively stable and is not easy to loosen during operation;
(4) the pushing assembly is connected to the needle cylinder through the nut in a threaded mode, so that the pushing assembly is convenient to disassemble, assemble and reuse.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the retaining ring of the present invention;
FIG. 3 is a schematic view of a pushing assembly according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the clamping bar of the present invention;
FIG. 5 is a schematic view of the mounting structure of the piston of the present invention;
FIG. 6 is an enlarged schematic view of A of FIG. 5 according to the present invention;
in the figure: 1. a needle cylinder; 2. a needle head; 3. a piston; 4. a push rod; 5. a sawtooth groove; 6. capping; 7. a pull ring; 8. a pushing assembly; 801. a housing; 802. a connecting shaft; 803. a ring body; 804. a connecting seat; 805. a first pin shaft; 806. a U-shaped frame; 807. a second pin shaft; 808. a clamping rod; 809. a connecting rod; 810. a pressing plate; 811. a notch; 812. a spring seat; 813. a spring; 9. mounting grooves; 10. an annular groove; 11. positioning rings; 12. an air cavity; 13. a card slot; 14. a seal ring; 15. a clamping block; 16. an ear plate; 17. a positioning ring; 18. an arc-shaped plate; 19. a nut; 20. fixing the ear; 21. an elastic cord; 22. a connecting ring; 23. a through hole; 24. the slot is moved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, as shown in fig. 1-6, the present invention comprises a needle cylinder 1, a needle 2 is connected to the lower end of the needle cylinder 1, a piston 3 is movably connected inside the needle cylinder 1, a push rod 4 is connected to the middle of the upper end of the piston 3, sawtooth grooves 5 are respectively formed on both sides of the outer end of the push rod 4, a cap 6 is connected to the upper end of the push rod 4 in a threaded manner, a pull ring 7 is connected to the upper end of the cap 6, and a pushing assembly 8 is sleeved on the upper end of the needle cylinder 1 relative to the outer portion of the push rod 4;
the pushing assembly 8 comprises a shell 801, the inside downside of the shell 801 is connected with a ring body 803 through a connecting shaft 802 in a rotating mode, two ends of the ring body 803 are connected with a connecting seat 804, the inside of the connecting seat 804 is connected with a U-shaped frame 806 through a first hinge pin 805 in a rotating mode, one side of the inside of the U-shaped frame 806 is connected with a clamping rod 808 through a second hinge pin 807 in a rotating mode, the clamping rod 808 is connected with a sawtooth groove 5 in a clamping mode, one end of the two connecting seats 804 is connected with a connecting rod 809, one end of the connecting rod 809 runs through and extends to the outside of the shell 801 to be connected with a pressing plate 810, the connecting rod 809 runs through the shell 801 and is provided with a notch 811, the connecting rod 809 is located in the notch 811, one side of the upper portion of the two U-shaped frames 806 is connected with a spring seat 812, and a spring 813 is connected between the two spring seats 812.
Embodiment two, on the basis of embodiment one, mounting groove 9 has been seted up at 3 upper ends middle parts of piston, ring channel 10 has been seted up at 3 outer end middle parts of piston, ring channel 10 internal connection has position ring 11, the inside air cavity 12 of having seted up of position ring 11, draw-in groove 13 has been seted up to 11 outsides of position ring, 11 outside covers of position ring are equipped with sealing washer 14, the inside draw-in groove 13 departments that correspond of sealing washer 14 are connected with fixture block 15, fixture block 15 and draw-in groove 13 joint, through position ring 11 and sealing washer 14 that set up in 3 outer ends of piston, sealing washer 14 can further laminate sealedly with 1 insides of cylinder, improve piston 3's sealing performance.
Third embodiment, on the basis of first embodiment, the both sides of syringe 1 upper end all are connected with otic placode 16, and the otic placode 16 lower extreme is connected with holding ring 17, and the convenience is located holding ring 17 when using forefinger and middle finger for syringe 1 keeps relatively stable during the operation, is difficult for the pine to take off.
Fourth embodiment, on the basis of first embodiment, the lower extreme symmetry of pushing component 8 is connected with arc 18, passes through nut 19 threaded connection between arc 18 and the cylinder 1, and the convenient dismouting with pushing component 8 fast.
Fifth embodiment, on the basis of the first embodiment, one side of the upper portion of the U-shaped frame 806 is connected with the fixing lug 20, one end of the fixing lug 20 is connected with the elastic rope 21, one end of the elastic rope 21 extends to the outside of the housing 801 and is connected with the connection ring 22, the elastic rope 21 penetrates through the housing 801 and is provided with the through hole 23, the connection ring 22 is convenient to drive the elastic rope 21 to pull outwards to unfold the two U-shaped frames 806 outwards, and therefore the push rod 4 is convenient to move.
Sixth embodiment, on the basis of the first embodiment, the middle part of the upper end of the push rod 4 is provided with the moving groove 24, the connecting shaft 802 is located in the moving groove 24, the width of the moving groove 24 is the same as the diameter of the connecting shaft 802, and the push rod 4 can be kept stable when gradually descending through the limiting effect of the connecting shaft 802 and the moving groove 24.
Seventh embodiment, on the basis of the first embodiment, the needle 2 is connected with the cylinder 1 in a threaded connection manner, so that the pushing assembly 8 can be conveniently and quickly disassembled and assembled.
Eighth embodiment, on the basis of second embodiment, position circle 11 and sealing washer 14 cross-section all are the setting of bench type structure, and sealing washer 14 outer end is the arc form, sets up through the bench type structure for the assembly is firm between sealing washer 14 and the position circle 11, and during the atress, outer end edge has the activity space.
In the ninth embodiment, in addition to the fifth embodiment, a guide wheel 25 is rotatably connected to one end of the elastic cord 21 with respect to the inside of the housing 801, and the guide wheel 25 is positioned at the upper end of the elastic cord 21.
The working principle is as follows: when the device is used, the index finger and the middle finger are respectively arranged in the positioning rings 17 at two sides of the upper part of the syringe 1 to clamp the syringe 1, then the pressing plate 810 on the pushing assembly 8 is pressed by the thumb, under the action of the connecting rod 809, the connecting seat 804 drives the ring body 803 to swing up and down around the connecting shaft 802, along with the swinging of the connecting seats 804 at two sides, the U-shaped frames 806 at two sides respectively drive the clamping rods 808 to be clamped with the sawtooth grooves 5 at two sides, so that the push rod 4 gradually moves downwards, the piston 3 pushes the solution in the syringe 1 to the needle head 2 to be injected into skin, when the piston 3 pushes downwards, the contact between the piston 3 and the inner wall of the syringe 1 is improved through the arrangement of the sealing ring 14, the sealing ring 14 is pressed inwards under the stress, the air cavity 12 in the positioning ring 11 is compressed, meanwhile, the air cavity 12 has the outward tension, so that the sealing ring 14 is abutted against the inner wall of the syringe 1 to match the sealing performance of the piston 3, so that the piston 3 of the invention has better sealing performance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a flying special needle that even easy pushes away, includes cylinder (1), its characterized in that: the lower end of the needle cylinder (1) is connected with a needle head (2), a piston (3) is movably connected inside the needle cylinder (1), the middle of the upper end of the piston (3) is connected with a push rod (4), two sides of the outer end of the push rod (4) are respectively provided with a sawtooth groove (5), the upper end of the push rod (4) is in threaded connection with a cap (6), the upper end of the cap (6) is connected with a pull ring (7), and a pushing assembly (8) is sleeved on the upper end of the needle cylinder (1) relative to the outer part of the push rod (4);
the pushing assembly (8) comprises a shell (801), the lower side inside the shell (801) is rotatably connected with a ring body (803) through a connecting shaft (802), two ends of the ring body (803) are respectively connected with a connecting seat (804), the inside of the connecting seat (804) is rotatably connected with a U-shaped frame (806) through a first pin shaft (805), one side inside the U-shaped frame (806) is rotatably connected with a clamping rod (808) through a second pin shaft (807), the clamping rod (808) is clamped with the sawtooth groove (5), one ends of the two connecting seats (804) are respectively connected with a connecting rod (809), one end of each connecting rod (809) penetrates through and extends to the outside of the shell (801), and a pressing plate (810) is connected with the connecting rod (809), and connecting rod (809) run through casing (801) and have seted up notch (811), and connecting rod (809) are located notch (811), and two U type frame (806) upper portion one sides all are connected with spring holder (812), are connected with spring (813) between two spring holders (812).
2. A uniform easy push flett needle as claimed in claim 1, wherein: mounting groove (9) have been seted up at piston (3) upper end middle part, ring channel (10) have been seted up at piston (3) outer end middle part, ring channel (10) internal connection has position ring (11), and air cavity (12) have been seted up to position ring (11) inside, and draw-in groove (13) have been seted up to position ring (11) outside, and the outside cover of position ring (11) is equipped with sealing washer (14), and sealing washer (14) inside corresponds draw-in groove (13) department and is connected with fixture block (15), fixture block (15) and draw-in groove (13) joint.
3. A uniform easy push flett needle as claimed in claim 1, wherein: both sides of the upper end of the needle cylinder (1) are connected with lug plates (16), and the lower ends of the lug plates (16) are connected with positioning rings (17).
4. A uniform easy push flett needle as claimed in claim 1, wherein: the lower end of the pushing component (8) is symmetrically connected with arc-shaped plates (18), and the arc-shaped plates (18) are in threaded connection with the needle cylinder (1) through nuts (19).
5. A uniform easy push flett needle as claimed in claim 1, wherein: one side of the upper portion of the U-shaped frame (806) is connected with a fixing lug (20), one end of the fixing lug (20) is connected with an elastic rope (21), one end of the elastic rope (21) extends to the outer portion of the shell (801) and is connected with a connecting ring (22), and the elastic rope (21) penetrates through the shell (801) and is provided with a through hole (23).
6. A uniform easy push flett needle as claimed in claim 1, wherein: the middle part of the upper end of the push rod (4) is provided with a moving groove (24), the connecting shaft (802) is positioned in the moving groove (24), and the width of the moving groove (24) is the same as the diameter of the connecting shaft (802).
7. A uniform easy push flett needle as claimed in claim 1, wherein: the needle head (2) is connected with the needle cylinder (1) in a threaded connection mode.
8. A uniform easy push flett needle as claimed in claim 2, wherein: the cross sections of the positioning ring (11) and the sealing ring (14) are both in a table structure, and the outer end of the sealing ring (14) is arc-shaped.
9. A uniform easy push Feite needle according to claim 5, characterized in that: one end of the elastic rope (21) is rotatably connected with a guide wheel (25) relative to the inside of the shell (801), and the guide wheel (25) is positioned at the upper end of the elastic rope (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110510770.0A CN113198068B (en) | 2021-05-11 | 2021-05-11 | Fly special needle that evenly easily pushes away |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110510770.0A CN113198068B (en) | 2021-05-11 | 2021-05-11 | Fly special needle that evenly easily pushes away |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113198068A CN113198068A (en) | 2021-08-03 |
| CN113198068B true CN113198068B (en) | 2022-04-15 |
Family
ID=77030794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110510770.0A Active CN113198068B (en) | 2021-05-11 | 2021-05-11 | Fly special needle that evenly easily pushes away |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113198068B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2653605A (en) * | 1951-03-22 | 1953-09-29 | Jr George N Hein | Injection device and ampoule |
| EP0246158A1 (en) * | 1986-05-14 | 1987-11-19 | Buffet, Jacques | External device for medical injection |
| CN107875485A (en) * | 2017-12-12 | 2018-04-06 | 温州京环科技有限公司 | A kind of safe injection needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8257319B2 (en) * | 2009-06-01 | 2012-09-04 | Sanofi-Aventis Deutschland Gmbh | Drug delivery device inner housing having helical spline |
-
2021
- 2021-05-11 CN CN202110510770.0A patent/CN113198068B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2653605A (en) * | 1951-03-22 | 1953-09-29 | Jr George N Hein | Injection device and ampoule |
| EP0246158A1 (en) * | 1986-05-14 | 1987-11-19 | Buffet, Jacques | External device for medical injection |
| CN107875485A (en) * | 2017-12-12 | 2018-04-06 | 温州京环科技有限公司 | A kind of safe injection needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113198068A (en) | 2021-08-03 |
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