CN111956910A - Self-destruction medical intravenous injection syringe - Google Patents
Self-destruction medical intravenous injection syringe Download PDFInfo
- Publication number
- CN111956910A CN111956910A CN202010957157.9A CN202010957157A CN111956910A CN 111956910 A CN111956910 A CN 111956910A CN 202010957157 A CN202010957157 A CN 202010957157A CN 111956910 A CN111956910 A CN 111956910A
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- Prior art keywords
- barrel
- positioning
- self
- driving
- driving positioning
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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
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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
- 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
- A61M5/3129—Syringe barrels
-
- 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
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- 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
- A61M5/50—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 preventing re-use, or for indicating if defective, used, tampered with or unsterile
-
- 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
- A61M5/50—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 preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
Abstract
The invention provides a self-destruction medical intravenous injection syringe. The self-destruction syringe comprises a barrel and a push rod, wherein the end part of the push rod is provided with a soft plug body, one end of the barrel is provided with a syringe needle, the other end of the barrel is provided with a barrel opening, the soft plug body is arranged into the barrel from the barrel opening, the end part of the push rod, which is far away from the soft plug body, is provided with a flanging, the inner barrel wall of the barrel is provided with a pressing piece and a self-destruction needle, the pressing piece presses the self-destruction needle onto the inner barrel wall of the barrel, and the syringe needle of the self-destruction needle faces. Through above-mentioned technical scheme, after this injection cylinder used, medical personnel compressed tightly the self-destruction needle in barrel inner tube wall through pressing tightly the piece to the syringe needle of self-destruction needle this moment is towards soft obturator one side, and medical personnel pull the push rod to nozzle one side, and the syringe needle of self-destruction needle just can prick and destroy soft obturator, and whole injection cylinder just can appear revealing, can't carry out the secondary and use.
Description
Technical Field
The invention relates to a medical appliance, in particular to a self-destruction medical intravenous injection syringe.
Background
An injection syringe is a medical appliance for injecting liquid medicine into tissues, subcutaneous tissues, blood vessels and muscles by a needle stick technology.
The structure of the injector used in clinic at present mainly comprises a cylinder body, a push rod is arranged in the cylinder body, and a soft plug body is arranged at the end part of the push rod; through pulling the push rod, the push rod drives the soft plug body to slide back and forth along the inside of the barrel body in a reciprocating manner, and the injection in the barrel body can be sprayed out from the needle head arranged at the end part of the barrel body. The function of the injection can only be used for injecting the medicine into human bodies, the injection is damaged only by recovering medical articles in later period, but not self-damaged, the repeated use possibility exists, the potential hazard of cross infection exists in the repeated use injector, and the cross infection of diseases is easily caused.
Disclosure of Invention
In view of the above, the present invention provides a self-destruction medical intravenous injection syringe, which can puncture and destroy a soft plug body, and reduce the possibility of later reuse.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an intravenous injection syringe is doctorsed and nurses to self-destruction formula, includes that barrel, tip install the push rod of soft cock body, the syringe needle is installed to the one end of barrel, the nozzle has been seted up to the other end of barrel, soft cock body is installed into in the barrel from the nozzle, the tip that the push rod deviates from soft cock body is equipped with the turn-ups, be equipped with on the barrel inner tube wall and compress tightly piece, self-destruction needle, compress tightly the piece and compress tightly the self-destruction needle on the inner tube wall of barrel, self-destruction needle syringe needle is towards soft cock body one side.
Through above-mentioned technical scheme, after this injection cylinder used, medical personnel compressed tightly the self-destruction needle in barrel inner tube wall through pressing tightly the piece to the syringe needle of self-destruction needle this moment is towards soft obturator one side, and medical personnel pull the push rod to nozzle one side, and the syringe needle of self-destruction needle just can prick and destroy soft obturator, and whole injection cylinder just can appear revealing, can't carry out the secondary and use.
Preferably, the compressing part comprises a compressing table fixedly connected to the inner cylinder wall of the cylinder, a compressing groove for the self-destruction needle to pass through is formed in the compressing table, a compressing spring and a compressing ball are arranged in the compressing table, a plurality of positioning grooves are formed in the self-destruction needle and distributed along the length direction of the self-destruction needle, and the compressing spring presses the compressing ball into the positioning grooves.
Through above-mentioned technical scheme, the accessible removes the self-destruction needle, and the position in the barrel at control self-destruction needle place is then fixed a position through pressure spring and pressure ball, conveniently controls the depth of puncturing of self-destruction needle.
Preferably, the barrel further comprises a sliding sleeve and a corrugated pipe sleeve, wherein a sliding hole is formed in the end part of the barrel in a penetrating manner, the sliding sleeve is arranged in the sliding hole in a sliding manner, the two ends of the sliding sleeve are respectively an inner end and an outer end, the inner end extends into the barrel and can be abutted against the inner barrel wall of the barrel to limit the sliding sleeve to slide out of the barrel from the sliding hole, the outer end extends out of the barrel, the corrugated pipe sleeve is sleeved outside the sliding sleeve, and the two ends of the corrugated pipe sleeve are respectively connected to the inner end and the inner barrel wall of the barrel;
the outer sleeve wall of the sliding sleeve is provided with a jack;
the barrel is provided with a driving positioning part, the driving positioning part comprises a driving positioning rod and a driving positioning piece, the driving positioning rod is connected to the barrel in a sliding mode, the end portion of the driving positioning rod is used for being inserted into or pulled out of the insertion hole, and the driving positioning piece is used for driving the driving positioning rod to move or be positioned at a designated position along the sliding direction of the sliding sleeve.
Through the technical scheme, when the injection needle cylinder is not used, the sliding sleeve can enter the cylinder body along the sliding hole, and the needle head can also enter the sliding hole along with the sliding sleeve, so that the length of the whole injection needle cylinder is greatly shortened, and the storage convenience is high;
when this injection cylinder is used to needs, can promote the push rod, the rubber buffer of push rod tip promotes inner, syringe needle and slip cover both can slide to the barrel outside along the hole that slides, when the jack is located barrel outside position, insert the jack with drive positioning rod tip in, then utilize the drive setting element to drive the drive positioning lever and remove along the cover direction that slides, the drive positioning lever alright continue to take out the barrel outside with syringe needle and slip cover, recycle the drive setting element and will drive the positioning lever and be located appointed position, alright normal use.
Preferably, a driving positioning groove is formed in the inner cylinder wall of the cylinder body, the driving positioning piece comprises a driving positioning block, and the driving positioning block is connected in the driving positioning groove in a sliding manner;
the first positioning piece is used for pushing the driving positioning block to move towards one side of the rod wall of the push rod;
a driving positioning gear is arranged on the driving positioning block;
the outer rod wall of the push rod is provided with a first tooth surface, and the driving positioning gear can be meshed with the first tooth surface;
the barrel is provided with a driving positioning chute for connecting a driving positioning rod in a sliding manner, the width of the driving positioning chute is larger than that of the driving positioning rod, a driving positioning spring is arranged in the driving positioning chute and used for driving the driving positioning rod to move towards one side away from the push rod, a second tooth surface is arranged on the driving positioning rod and can be meshed with the driving positioning gear;
the barrel is provided with a second positioning piece, the second positioning piece is abutted against the driving positioning rod and can push the driving positioning rod to move towards one side close to the push rod, and then the driving positioning gear can be meshed with the second gear face.
Through the technical scheme, after the end part of the driving positioning rod is inserted into the jack, the driving positioning block is moved to one side of the rod wall of the push rod through the first positioning piece, the driving positioning gear is meshed with the first tooth surface, the second positioning piece is abutted against the driving positioning rod and can push the driving positioning rod to move to one side close to the push rod, the driving positioning gear can be meshed with the second tooth surface, at the moment, the push rod is pushed to the direction away from the needle head, the first tooth surface of the outer side wall of the push rod drives the driving positioning gear to rotate, the driving positioning gear drives the driving positioning rod to move to the needle head direction, and the whole sliding sleeve can be moved out of the barrel;
the push rod is pushed towards the direction close to the needle head, the first tooth surface on the outer side wall of the push rod drives the driving positioning gear to rotate, the driving positioning gear drives the driving positioning rod to move towards the direction away from the needle head, on one hand, the sliding sleeve can be pushed into the barrel, on the other hand, the second positioning piece can be removed, the driving positioning spring can drive the driving positioning rod to move towards the side away from the push rod, and the end part of the driving positioning rod can be pulled out of the jack;
after the first positioning piece is taken off, the driving positioning piece can freely move along the driving positioning groove, and no matter the push rod with the soft plug body is installed into the barrel body or is pulled out from the barrel body, the installation problem can not be caused by the existence of the driving positioning gear.
Preferably, the first positioning element comprises a first positioning bolt in threaded connection with the cylinder body, and the end of the first positioning bolt can abut against the driving positioning block and push the driving positioning block to move towards one side of the wall of the push rod.
Through above-mentioned technical scheme, through rotatory first positioning bolt, the tip of first positioning bolt can offset with the drive locating piece to stably promote the drive locating piece and carry out nimble slip along the drive constant head tank.
Preferably, the second positioning part comprises a second positioning bolt in threaded connection with the barrel, and the end of the second positioning bolt abuts against the driving positioning rod and can push the driving positioning rod to move towards one side close to the push rod, so that the driving positioning gear can be meshed with the first tooth surface.
Through the technical scheme, the end part of the second positioning bolt can be abutted against the driving positioning rod by rotating the second positioning bolt, and the driving positioning rod is stably pushed to overcome the tension action of the driving positioning spring so as to move.
Preferably, the end part of the driving positioning rod close to the needle head is a driving section, the driving section is bent, and the driving section can be attached to the end surface of the barrel close to the needle head and close to the end surface.
Through above-mentioned technical scheme, when drive locating lever tip alright follow the jack in take out the back, utilize the revolving force of drive positioning gear, drive section is with drive locating lever synchronous motion, and the drive locating lever can tightly be laminated in the barrel and be close to the terminal surface of syringe needle to in accomodating.
Preferably, the barrel is in threaded connection with a third positioning bolt, and the third positioning bolt can abut against the side wall of the self-destruction needle and drive the self-destruction needle to move towards the inside of the barrel.
Through the technical scheme, the third positioning bolt is rotated, so that the distance between the self-destruction needle and the inner cylinder wall of the cylinder body can be controlled, and the position of the needle inserting of the self-destruction needle on the soft plug body can be conveniently changed.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of section C of FIG. 1;
fig. 5 is an enlarged view of a portion D of fig. 1.
Reference numerals: 1. a barrel; 2. a cylinder mouth; 3. a soft plug body; 4. a push rod; 5. a needle head; 6. a sliding sleeve; 61. an inner end; 62. an outer end; 7. a bellows sleeve; 8. a sliding hole; 9. a jack; 10. driving the positioning part; 101. driving the positioning rod; 1011. a drive section; 11. driving the positioning piece; 111. driving the positioning block; 112. driving the positioning groove; 12. a first positioning member; 121. a first positioning bolt; 13. driving the positioning gear; 14. a first tooth surface; 15. driving the positioning chute; 16. a drive positioning spring; 17. a second tooth surface; 18. a second positioning member; 181. a second positioning bolt; 19. a compression member; 191. a compacting table; 192. a compaction groove; 193. a compression spring; 194. pressing the ball; 20. a self-destruction needle; 21. a third positioning bolt; 22. and (6) positioning a groove.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-5 to make the technical solution of the present invention easier to understand and grasp.
The utility model provides an intravenous injection syringe is doctorsed and nurses to self-destruction formula, includes that barrel 1, tip install the push rod 4 of soft cock body 3, and syringe needle 5 is installed to the one end of barrel 1, and nozzle 2 has been seted up to the other end of barrel 1, and in soft cock body 3 installed into barrel 1 from nozzle 2, push rod 4 deviated from the tip of soft cock body 3 and was equipped with the turn-ups.
The inner cylinder wall of the cylinder body 1 is provided with a pressing piece 19 and a self-destruction needle 20, the pressing piece 19 presses the self-destruction needle 20 on the inner cylinder wall of the cylinder body 1, and the needle head 5 of the self-destruction needle 20 faces one side of the soft plug body 3.
The pressing piece 19 comprises a pressing table 191 fixedly connected to the inner wall of the barrel 1, a pressing groove 192 for the self-destruction needle 20 to penetrate through is formed in the pressing table 191, a pressing spring 193 and a pressing ball 194 are arranged in the pressing table 191, a plurality of positioning grooves 22 are formed in the self-destruction needle 20, the plurality of positioning grooves 22 are distributed along the length direction of the self-destruction needle 20, and the pressing ball 194 is pressed into the positioning grooves 22 by the pressing spring 193.
The barrel 1 is in threaded connection with a third positioning bolt 21, the third positioning bolt 21 is perpendicular to the length direction of the barrel 1, and the third positioning bolt 21 can abut against the side wall of the self-destruction needle 20 and drive the self-destruction needle 20 to move towards the inside of the barrel 1.
On the basis of the technical scheme, the following technical scheme is added.
Still including sliding sleeve 6, bellows sleeve 7, the tip of barrel 1 runs through and is equipped with the hole 8 that slides, and the hole 8 that slides is located the nozzle 2 one side that deviates from barrel 1, and the cover 6 that slides and sets up in the hole 8 that slides. The two ends of the sliding sleeve 6 are respectively an inner end 61 and an outer end 62, the inner end 61 extends into the cylinder body 1, and the inner end 61 can be abutted against the inner cylinder wall of the cylinder body 1 to limit the sliding sleeve 6 to slide out of the cylinder body 1 from the sliding hole 8. The outer end 62 extends out of the cylinder body 1, the corrugated pipe sleeve 7 is sleeved outside the sliding sleeve 6, and two ends of the corrugated pipe sleeve 7 are respectively connected to the inner end 61 and the inner cylinder wall of the cylinder body 1;
the outer sleeve wall of the sliding sleeve 6 is provided with a jack 9.
The barrel 1 is provided with a driving positioning part 10, the driving positioning part 10 comprises a driving positioning rod 101 and a driving positioning part 11, the driving positioning rod 101 is connected to the barrel 1 in a sliding mode, and the sliding direction of the driving positioning rod 101 is consistent with the length direction of the barrel 1. The end of the drive positioning rod 101 is used for inserting or extracting in the jack 9.
The driving positioning piece 11 is used for driving the driving positioning rod 101 to move along the sliding direction of the sliding sleeve 6 or to be positioned at a specified position.
The inner wall of the cylinder body 1 is provided with a driving positioning groove 22112, and the driving positioning groove 22112 is positioned at one side close to the cylinder opening 2.
The driving positioning member 11 includes a driving positioning block 111, the driving positioning block 111 is slidably connected in the driving positioning slot 22112, and the driving positioning block 111 moves along a direction perpendicular to the length direction of the cylinder 1.
A first positioning member 12 is further provided, and the first positioning member 12 is used for pushing the driving positioning block 111 to move towards the rod wall side of the push rod 4. The first positioning element 12 includes a first positioning bolt 121 screwed to the barrel 1, the moving direction of the first positioning bolt 121 is perpendicular to the length direction of the barrel 1, and the end of the first positioning bolt 121 can abut against the driving positioning block 111 and push the driving positioning block 111 to move toward the rod wall of the push rod 4.
A drive positioning gear 13 is attached to the drive positioning block 111, and the drive positioning gear 13 can be rotated.
A first tooth surface 14 is arranged on the outer rod wall of the push rod 4, the length direction of the first tooth surface 14 is consistent with the length direction of the push rod 4, and the driving positioning gear 13 can be meshed with the first tooth surface 14.
The barrel 1 is provided with a driving positioning chute 15 for connecting the driving positioning rod 101 in a sliding manner, the driving positioning chute 15 has a width a, the driving positioning rod 101 has a width b, and a is greater than b.
A driving positioning spring 16 is arranged in the driving positioning chute 15, and the driving positioning spring 16 is used for driving the driving positioning rod 101 to move towards the side away from the push rod 4.
The driving positioning rod 101 is provided with a second tooth surface 17, the second tooth surface 17 can be meshed with the driving positioning gear 13, and the driving positioning gear 13 is positioned between the driving positioning rod 101 and the push rod 4.
The cylinder 1 is provided with a second positioning element 18, the second positioning element 18 abuts against the driving positioning rod 101 and can push the driving positioning rod 101 to move towards one side close to the push rod 4, so that the driving positioning gear 13 can be meshed with the second gear surface 17. The second positioning element 18 includes a second positioning bolt 181 threadedly coupled to the barrel 1, and an end of the second positioning bolt 181 abuts against the driving positioning rod 101 and can push the driving positioning rod 101 to move toward the side close to the push rod 4, so that the driving positioning gear 13 can be engaged with the first tooth surface 14.
In addition, the end of the driving positioning rod 101 close to the needle 5 is a driving section 1011, the driving section 1011 is bent, and the driving section 1011 can be closely attached to the end face of the cylinder 1 close to the needle 5.
In the practical use process, the first positioning bolt 121 is rotated out from the barrel opening 2, the push rod 4 with the soft plug body 3 is inserted into the barrel body 1, the soft plug body 3 can extrude the driving positioning gear 13, the driving positioning block 111 can slide along the driving positioning slot 22112, the push rod 4 with the soft plug body 3 can be smoothly inserted into the barrel body 1, the push rod 4 with the soft plug body 3 can push the sliding sleeve 6 to move towards the outside of the barrel body 1, the outer end 62 of the sliding sleeve 6 can move to the outside, the first positioning bolt 121 is screwed in, the first positioning bolt 121 can push the driving positioning gear 13 to be meshed with the first tooth surface 14, the second positioning bolt 181 is screwed in, the second positioning bolt 181 can generate extrusion force towards one side of the push rod 4 to the driving positioning rod 101, the end part of the driving positioning rod 101 can be inserted into the insertion hole 9, meanwhile, the second tooth surface 17 on the driving positioning rod 101 can also be meshed with the driving positioning gear 13, push rod 4 and drive positioning gear 13 and carry out clockwise rotation towards deviating from nozzle 2 one side, first flank of tooth 14 on push rod 4, drive positioning gear 13 drives drive locating lever 101 and removes to 8 directions in the hole that slides, drive locating lever 101 alright drive slide cover 6 and remove towards 8 outsides in the hole that slides. When the sliding sleeve 6 moves to the most protruding position, the second tooth surface 17 of the driving positioning rod 101 can be separated from the driving positioning gear 13, and then is finally positioned by the first positioning bolt 121, the position of the whole sliding sleeve 6 is fixed, and medical staff can realize the drawing and releasing of the injection by normally pushing the push rod 4.
After this syringe finishes using, medical personnel compress tightly self-destruction needle 20 on barrel 1 inner tube wall through pressing component 19, and needle head 5 of self-destruction needle 20 is towards soft cock body 3 one side this moment, and the accessible is rotatory third positioning bolt 21 and is controlled the interval size between self-destruction needle 20 and barrel 1 inner tube wall, medical personnel pull push rod 4 to nozzle 2 one side, needle head 5 of self-destruction needle 20 just can prick and destroy soft cock body 3, whole syringe just can appear revealing, can't carry out the secondary use.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (8)
1. The utility model provides an intravenous injection syringe is doctorsed and nurses to self-destruction formula, includes that push rod (4) of soft cock body (3) are installed to barrel (1), tip, syringe needle (5) are installed to the one end of barrel (1), nozzle (2) have been seted up to the other end of barrel (1), install into barrel (1) from nozzle (2) in soft cock body (3), the tip that deviates from soft cock body (3) in push rod (4) is equipped with the turn-ups, characterized by:
the inner cylinder wall of the cylinder body (1) is provided with a pressing piece (19) and a self-destruction needle (20), the pressing piece (19) presses the self-destruction needle (20) on the inner cylinder wall of the cylinder body (1), and the needle head (5) of the self-destruction needle (20) faces one side of the soft plug body (3).
2. The self-destructing medical care intravenous injection syringe according to claim 1, characterized in that: the pressing piece (19) comprises a pressing table (191) fixedly connected to the inner wall of the barrel body (1), a pressing groove (192) for the self-destruction needle (20) to penetrate through is formed in the pressing table (191), a pressing spring (193) and a pressing ball (194) are arranged in the pressing table (191), a plurality of positioning grooves (22) are formed in the self-destruction needle (20), the positioning grooves (22) are distributed along the length direction of the self-destruction needle (20), and the pressing ball (194) is pressed into the positioning grooves (22) by the pressing spring (193).
3. A self-destructing medical care intravenous fluid injection syringe according to claim 1 or 2, characterized in that: the anti-slipping structure is characterized by further comprising a slipping sleeve (6) and a corrugated pipe sleeve (7), a slipping hole (8) penetrates through the end portion of the barrel body (1), the slipping sleeve (6) is arranged in the slipping hole (8) in a slipping mode, the inner end (61) and the outer end (62) are arranged at the two ends of the slipping sleeve (6) respectively, the inner end (61) extends into the barrel body (1), the inner end (61) can abut against the inner barrel wall of the barrel body (1) to limit the slipping sleeve (6) to slip out of the barrel body (1) from the slipping hole (8), the outer end (62) extends out of the barrel body (1), the corrugated pipe sleeve (7) is sleeved on the outer side of the slipping sleeve (6), and the two ends of the corrugated pipe sleeve (7) are connected to the inner end (61) and the inner barrel wall of the barrel;
the outer sleeve wall of the sliding sleeve (6) is provided with a jack (9);
the barrel (1) is provided with a driving positioning part (10), the driving positioning part (10) comprises a driving positioning rod (101) and a driving positioning part (11), the driving positioning rod (101) is connected to the barrel (1) in a sliding mode, the end part of the driving positioning rod (101) is used for being inserted into or pulled out of the insertion hole (9), and the driving positioning part (11) is used for driving the driving positioning rod (101) to move or be positioned at a designated position along the sliding direction of the sliding sleeve (6).
4. The self-destructing medical care intravenous injection syringe according to claim 3, characterized in that: the inner wall of the barrel body (1) is provided with driving positioning grooves (22) (112), the driving positioning piece (11) comprises a driving positioning block (111), and the driving positioning block (111) is connected in the driving positioning grooves (22) (112) in a sliding manner;
the positioning device further comprises a first positioning piece (12), wherein the first positioning piece (12) is used for pushing the driving positioning piece (111) to move towards one side of the rod wall of the push rod (4);
a driving positioning gear (13) is arranged on the driving positioning block (111);
a first tooth surface (14) is arranged on the outer rod wall of the push rod (4), and the driving positioning gear (13) can be meshed with the first tooth surface (14);
the barrel body (1) is provided with a driving positioning sliding groove (15) for the sliding connection of a driving positioning rod (101), the width of the driving positioning sliding groove (15) is larger than that of the driving positioning rod (101), a driving positioning spring (16) is arranged in the driving positioning sliding groove (15), the driving positioning spring (16) is used for driving the driving positioning rod (101) to move towards one side away from the push rod (4), a second tooth surface (17) is arranged on the driving positioning rod (101), and the second tooth surface (17) can be meshed with the driving positioning gear (13);
the barrel (1) is provided with a second positioning part (18), the second positioning part (18) abuts against the driving positioning rod (101) and can push the driving positioning rod (101) to move towards one side close to the push rod (4), and then the driving positioning gear (13) can be meshed with the second gear surface (17).
5. The self-destructing medical care intravenous injection syringe according to claim 4, characterized in that: the first positioning piece (12) comprises a first positioning bolt (121) which is in threaded connection with the barrel body (1), and the end part of the first positioning bolt (121) can abut against the driving positioning block (111) and push the driving positioning block (111) to move towards one side of the rod wall of the push rod (4).
6. The self-destructing medical care intravenous injection syringe according to claim 4, characterized in that: the second positioning part (18) comprises a second positioning bolt (181) in threaded connection with the barrel (1), the end part of the second positioning bolt (181) abuts against the driving positioning rod (101) and can push the driving positioning rod (101) to move towards one side close to the push rod (4), and then the driving positioning gear (13) can be meshed with the first tooth surface (14).
7. The self-destructing medical care intravenous injection syringe according to claim 3, characterized in that: drive locating lever (101) are close to tip in syringe needle (5) and are drive section (1011), drive section (1011) are the form of buckling, drive section (1011) can with barrel (1) is close to the terminal surface laminating of syringe needle (5) mutually and is close to tightly.
8. The self-destructing medical care intravenous injection syringe according to claim 1, characterized in that: and a third positioning bolt (21) is connected to the barrel (1) in a threaded manner, and the third positioning bolt (21) can abut against the side wall of the self-destruction needle (20) and drive the self-destruction needle (20) to move towards the inside of the barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957157.9A CN111956910A (en) | 2020-09-12 | 2020-09-12 | Self-destruction medical intravenous injection syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957157.9A CN111956910A (en) | 2020-09-12 | 2020-09-12 | Self-destruction medical intravenous injection syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111956910A true CN111956910A (en) | 2020-11-20 |
Family
ID=73393129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010957157.9A Withdrawn CN111956910A (en) | 2020-09-12 | 2020-09-12 | Self-destruction medical intravenous injection syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111956910A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003009892A1 (en) * | 2001-07-25 | 2003-02-06 | Roberto Yassuo Ito | Non-reusable syringe with a piston stem disengagement system |
| CN201500354U (en) * | 2009-10-17 | 2010-06-09 | 朱爱芝 | Novel self-destroying syringe |
| CN202289100U (en) * | 2011-09-13 | 2012-07-04 | 南通芯迎设计服务有限公司 | Destructing disposable syringe |
| CN203763586U (en) * | 2013-12-30 | 2014-08-13 | 魏颖德 | Improved safe self-destructive type injector |
| CN204411423U (en) * | 2014-12-28 | 2015-06-24 | 黄敬远 | Disposable self-destructing anti-virus syringe |
| CN110860013A (en) * | 2019-11-26 | 2020-03-06 | 邢义林 | Medical syringe |
-
2020
- 2020-09-12 CN CN202010957157.9A patent/CN111956910A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003009892A1 (en) * | 2001-07-25 | 2003-02-06 | Roberto Yassuo Ito | Non-reusable syringe with a piston stem disengagement system |
| CN201500354U (en) * | 2009-10-17 | 2010-06-09 | 朱爱芝 | Novel self-destroying syringe |
| CN202289100U (en) * | 2011-09-13 | 2012-07-04 | 南通芯迎设计服务有限公司 | Destructing disposable syringe |
| CN203763586U (en) * | 2013-12-30 | 2014-08-13 | 魏颖德 | Improved safe self-destructive type injector |
| CN204411423U (en) * | 2014-12-28 | 2015-06-24 | 黄敬远 | Disposable self-destructing anti-virus syringe |
| CN110860013A (en) * | 2019-11-26 | 2020-03-06 | 邢义林 | Medical syringe |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201120 |
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