CN111956909B - Protective medical intravenous injector - Google Patents
Protective medical intravenous injector Download PDFInfo
- Publication number
- CN111956909B CN111956909B CN202010957155.XA CN202010957155A CN111956909B CN 111956909 B CN111956909 B CN 111956909B CN 202010957155 A CN202010957155 A CN 202010957155A CN 111956909 B CN111956909 B CN 111956909B
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- Prior art keywords
- driving positioning
- positioning
- barrel
- driving
- rod
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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
- A61M5/3129—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
- A61M5/3129—Syringe barrels
- A61M5/3134—Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
-
- 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
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe 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
- A61M5/178—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
- A61M5/178—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
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a protective medical intravenous injection syringe. The novel syringe comprises a barrel, a push rod and a rubber sleeve, wherein the push rod is provided with a soft plug body at the end part, 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, and the rubber sleeve is sleeved on the outer side wall of the flanging. Through above-mentioned technical scheme, in the in-service use process, medical personnel's hand can directly offset with the rubber sleeve of cover on the turn-ups lateral wall, has alleviated medical personnel by a wide margin because the uncomfortable sense that produces with the push rod tip contact of stereoplasm material.
Description
Technical Field
The invention relates to a medical appliance, in particular to a protective medical intravenous injector.
Background
The structure of the prior syringe mainly comprises a cylinder body, wherein 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.
In the actual operation in-process, medical personnel need the one hand to hold the barrel, and the one end that deviates from the soft cock body of one hand push-and-pull push rod in addition, and wherein, push-and-pull push rod's hand is less relatively with the conflict area of push rod tip to the push rod is the rigid plastic material, and after the number of times of operation is too much, medical personnel's hand produces the discomfort easily.
Disclosure of Invention
In view of this, the present invention provides a protective medical intravenous injector, which can effectively relieve the discomfort of the hands of the medical staff.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an intravenous route ware is doctorsed and nurses to protection type, includes that barrel, tip install the push rod of the 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, the soft cock body is installed into in the barrel from the nozzle, the tip that the push rod deviates from the soft cock body is equipped with the turn-ups, still includes the rubber sleeve, the rubber sleeve cover is located on the turn-ups lateral wall.
Through above-mentioned technical scheme, in the in-service use process, medical personnel's hand can directly offset with the rubber sleeve of cover on the turn-ups lateral wall, has alleviated medical personnel by a wide margin because the uncomfortable sense that produces with the push rod tip contact of stereoplasm material.
Preferably, the sleeve opening of the rubber sleeve extends to the push rod close to the outer rod wall of the flanging.
Through above-mentioned technical scheme, because medical personnel when using, medical personnel's finger can be close to in turn-ups outer pole wall with the push rod and contradict the friction, consequently, the cuff of rubber sleeve can the separation point in medical personnel's finger and push rod close to between the turn-ups outer pole wall to carry out relatively comprehensive protection to medical personnel's hand, also can effectively restrict the unexpected landing of rod end of rubber sleeve from the push rod certainly.
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.
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 a portion C 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 rubber sleeve; 20. and (5) flanging.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-4 to make the technical solution of the present invention easier to understand and grasp.
The utility model provides an intravenous route ware is doctorsed and nurses to protection type, 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 turn-ups 20.
Still include rubber sleeve 19, rubber sleeve 19 cover is located on the turn-ups lateral wall. The cuff of the rubber sleeve 19 extends to the outer pole wall of the push rod 4 close to the flange 20.
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 barrel body 1 is provided with a driving positioning groove 112, and the driving positioning groove 112 is positioned at a position close to one side of the barrel opening 2.
The driving positioning element 11 includes a driving positioning block 111, the driving positioning block 111 is slidably connected in the driving positioning groove 112, and the driving positioning block 111 moves along a direction perpendicular to the length direction of the barrel 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 groove 112, 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 mutually 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.
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 (6)
1. The utility model provides an intravenous route ware is doctorsed and nurses to protection type, includes that push rod (4) of the 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), in barrel (1) was installed into from nozzle (2) in soft cock body (3), the tip that push rod (4) deviate from soft cock body (3) is equipped with turn-ups (20), characterized by: the rubber sleeve (19) is sleeved on the outer side wall of the flanging (20);
the needle-free anti-slipping barrel is characterized by further comprising a slipping sleeve (6) and a corrugated pipe sleeve (7), a slipping hole (8) is formed in the end portion, provided with a needle (5), of the barrel body (1) in a penetrating mode, 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;
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).
2. A protective medical intravenous injector according to claim 1, further comprising: the sleeve opening of the rubber sleeve (19) extends to the outer rod wall of the push rod (4) close to the flanging (20).
3. A protective medical intravenous injector according to claim 1, further comprising: a driving positioning groove (112) is formed in the inner wall of the barrel body (1), the driving positioning piece (11) comprises a driving positioning block (111), and the driving positioning block (111) is connected in the driving positioning groove (112) in a sliding mode;
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 (1) is provided with a driving positioning chute (15) for the sliding connection of a driving positioning rod (101), the width of the driving positioning chute (15) is larger than that of the driving positioning rod (101), a driving positioning spring (16) is arranged in the driving positioning chute (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 a 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).
4. A protective medical intravenous injector according to claim 3, further comprising: 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).
5. A protective medical intravenous injector according to claim 3, further comprising: 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).
6. A protective medical intravenous injector according to claim 1, further comprising: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957155.XA CN111956909B (en) | 2020-09-12 | 2020-09-12 | Protective medical intravenous injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957155.XA CN111956909B (en) | 2020-09-12 | 2020-09-12 | Protective medical intravenous injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111956909A CN111956909A (en) | 2020-11-20 |
| CN111956909B true CN111956909B (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010957155.XA Expired - Fee Related CN111956909B (en) | 2020-09-12 | 2020-09-12 | Protective medical intravenous injector |
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| CN (1) | CN111956909B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5498245A (en) * | 1991-11-20 | 1996-03-12 | Eastland Technology Australia Pty Ltd | Attachment for a parenteral device |
| CN201643214U (en) * | 2010-04-29 | 2010-11-24 | 杨秀兰 | Disposable sterile syringe with closed type pintle |
| CN204601278U (en) * | 2015-04-21 | 2015-09-02 | 中国人民解放军第四军医大学 | A kind of syringe |
| CN108837237A (en) * | 2018-07-10 | 2018-11-20 | 温州市人民医院 | A kind of retractable syringe |
| CN208770573U (en) * | 2018-04-25 | 2019-04-23 | 华中科技大学同济医学院附属协和医院 | A kind of syringe with bending angle syringe needle |
| CN110801555A (en) * | 2019-11-11 | 2020-02-18 | 鲍天琪 | Medical injection assembly |
| CN111359057A (en) * | 2020-03-22 | 2020-07-03 | 郑岳良 | Medical degerming syringe needle |
-
2020
- 2020-09-12 CN CN202010957155.XA patent/CN111956909B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5498245A (en) * | 1991-11-20 | 1996-03-12 | Eastland Technology Australia Pty Ltd | Attachment for a parenteral device |
| CN201643214U (en) * | 2010-04-29 | 2010-11-24 | 杨秀兰 | Disposable sterile syringe with closed type pintle |
| CN204601278U (en) * | 2015-04-21 | 2015-09-02 | 中国人民解放军第四军医大学 | A kind of syringe |
| CN208770573U (en) * | 2018-04-25 | 2019-04-23 | 华中科技大学同济医学院附属协和医院 | A kind of syringe with bending angle syringe needle |
| CN108837237A (en) * | 2018-07-10 | 2018-11-20 | 温州市人民医院 | A kind of retractable syringe |
| CN110801555A (en) * | 2019-11-11 | 2020-02-18 | 鲍天琪 | Medical injection assembly |
| CN111359057A (en) * | 2020-03-22 | 2020-07-03 | 郑岳良 | Medical degerming syringe needle |
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| CN111956909A (en) | 2020-11-20 |
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