CN110237360A - A kind of injection needle tube convenient for one-handed performance - Google Patents
A kind of injection needle tube convenient for one-handed performance Download PDFInfo
- Publication number
- CN110237360A CN110237360A CN201910622671.4A CN201910622671A CN110237360A CN 110237360 A CN110237360 A CN 110237360A CN 201910622671 A CN201910622671 A CN 201910622671A CN 110237360 A CN110237360 A CN 110237360A
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- China
- Prior art keywords
- push
- cylinder
- movable sleeve
- alar part
- pull rod
- Prior art date
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- Pending
Links
- 239000007924 injection Substances 0.000 title claims abstract description 47
- 238000002347 injection Methods 0.000 title claims abstract description 47
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000012530 fluid Substances 0.000 claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 47
- 210000003811 finger Anatomy 0.000 description 37
- 210000003813 thumb Anatomy 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2048—Connecting means
- A61J1/2051—Connecting means having tap means, e.g. tap means activated by sliding
-
- 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
- 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
- A61M5/3137—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
-
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
-
- 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
- A61M2005/3131—Syringe barrels specially adapted for improving sealing or sliding
-
- 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
- A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Pharmacology & Pharmacy (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of injection needle tubes convenient for one-handed performance, piston component including cylinder and with cylinder cooperation, the piston component includes push-pull rod and the piston for being set to push-pull rod one end, one end of the piston and push-pull rod is set in cylinder, the other end of the push-pull rod extends to outside cylinder, the lower end surface of the cylinder is provided with fluid suction head, cylinder symmetric position on the outer circle wall of one end of fluid suction head is provided with the first alar part, movable sleeve is also arranged with outside the cylinder, the movable sleeve is provided with the second alar part towards symmetric position on the outer circle wall of fluid suction head one end, it is additionally provided on the movable sleeve and the matched sliding elongated slot of the first alar part, the movable sleeve edge is slidably matched with the cylinder, the movable sleeve is connected with push-pull rod.The present invention is convenient for operator's one-handed performance injection needle tube, and stability is high in one-handed performance injection needle tube.
Description
Technical field
The present invention relates to a kind of injection needle tubes convenient for one-handed performance.
Background technique
Injection needle tube all must be largely used in medical acts such as injection, chemical drugs at present, existing injection needle tube is mostly
By cylinder, the fluid suction head being set on cylinder, be set to the intracorporal piston component component of cylinder, piston component generally by push-and-pull head,
Push-pull rod and piston form.When carrying out drawing liquid using injection needle tube, operator needs a hand that cylinder is fixed, another
The finger of hand pulls the push-and-pull head of piston component, is aspirated by push-pull rod band piston relative motion.In this suction operation
In the process, it needs both hands to operate, limits the operating space of both hands, bring inconvenience, in addition, due in ergonomical relationship and syringe
The principle of larger negative pressure, so that suction action is very laborious.Furthermore conventional syringe is in the behaviors such as nurse's chemical drug, in syringe
Push-pull rod is easy to be touched and polluted by operator's hand, causes serious medical hidden danger.
Summary of the invention
The purpose of the present invention is to solve problems of the prior art, provide it is a kind of can one-handed performance and in list
Stability high injection needle tube when hand operates.
To achieve the above object, the present invention provides the following technical scheme that a kind of injection needle tube convenient for one-handed performance, packet
Cylinder and the piston component with cylinder cooperation are included, the piston component includes push-pull rod and the piston for being set to push-pull rod one end,
One end of the piston and push-pull rod is set in cylinder, and the other end of the push-pull rod extends to outside cylinder, the cylinder
Lower end surface is provided with fluid suction head, and cylinder symmetric position on the outer circle wall of one end of fluid suction head is provided with first wing
Portion, the cylinder are also arranged with movable sleeve outside, and the movable sleeve is arranged towards symmetric position on the outer circle wall of fluid suction head one end
There is the second alar part, is additionally provided on the movable sleeve and the matched sliding elongated slot of the first alar part, the movable sleeve edge and the cylinder
Body is slidably matched, and the movable sleeve is connected with push-pull rod.
By using above-mentioned technical proposal, the piston of piston component and one end of push-pull rod are set in cylinder, push-pull rod
The other end extend to outside cylinder, cylinder is symmetrically arranged with the first alar part, cylinder on the outer circle wall of one end of fluid suction head
It is also arranged with movable sleeve outside, movable sleeve is inserted in from the cylinder of fluid suction head one end, the sliding elongated slot on movable sleeve and the first alar part phase
Matching, movable sleeve does relative motion along the central axial direction of cylinder, and movable sleeve is towards right on the outer circle wall of fluid suction head one end
Title is provided with the second alar part.When needing drawing liquid, operator carries out drawing liquid with a hand operation injection needle tube, is arranged with syringe needle
Fluid suction head is inserted into the position for needing drawing liquid, and thumb is against on face of first alar part with respect to the other side of fluid suction head of cylinder,
Index finger and middle finger are against the second alar part towards on the face of fluid suction head side respectively, and index finger and middle finger exert a forces to the second alar part, slide
Elongated slot sliding opposite with the first alar part, the second alar part is under force close to the first alar part, by movable sleeve from the first end of imbibition
It is pushed towards the other end, so that the side of movable sleeve towards push-and-pull head pushes push-pull rod and piston to slide in the inner cavity phase of cylinder,
To realize the effect of drawing liquid.Thumb is against on the first alar part, plays fixed function in drawing liquid, avoids the hair in drawing liquid
Raw shake；It is exerted a force to the second alar part by index finger and middle finger so that movable sleeve pushes piston component to be slided in cylinder to reach
To the purpose of drawing liquid, operator's one-handed performance injection needle tube is facilitated to carry out drawing liquid.It when injecting, still can be according to tradition
One-handed performance injected, thumb is against on the end face of the other end of push-pull rod opposing pistons, index finger is against with middle finger
First alar part is towards the side of fluid suction head, and thumb pushes push-pull rod intracavitary sliding in cylinder with piston, so that piston
Solution intracavitary in cylinder is injected away from fluid suction head, realizes the effect of injection.
The present invention is further arranged: the push-pull rod is provided with push-and-pull head, the movable sleeve direction backwards to one end of piston
The side for pushing and pulling head is connect with the side of push-and-pull head towards movable sleeve.
By using above-mentioned technical proposal, one end of push-pull rod is provided with push-and-pull head, when the one of movable sleeve direction push-and-pull head
Side cooperates towards the side of movable sleeve with push-and-pull head and abuts, and the second alar part on movable sleeve is pushed, so that movable sleeve is along cylinder
The central axis of body does opposite sliding, and movable sleeve is to push-and-pull head force, so that push-and-pull head drives push-pull rod and piston along cylinder
Inner cavity is opposite to be slided, and realizes the effect of drawing liquid.Movable sleeve is used with arc-shaped slot and is fixedly connected.
The present invention is further arranged: the side of push-and-pull head towards the movable sleeve is provided with to be pushed and pulled with the movable sleeve direction
The arc-shaped slot that the side of head matches, the bottom surface of the movable sleeve is mutually abutted with the bottom surface of the arc-shaped slot.
By using above-mentioned technical proposal, the arc-shaped slot pushed and pulled on head is adapted with movable sleeve, movable sleeve direction push-and-pull
The side of head is caught in arc-shaped slot, when pushing movable sleeve to do opposite sliding along the central axis of cylinder, the bottom surface of movable sleeve with
The bottom surface of arc-shaped slot mutually abuts, and movable sleeve is to push-and-pull head force, so that push-and-pull head drives push-pull rod and piston along cylinder
Inner cavity is opposite to be slided, and realizes the effect of drawing liquid.
The present invention is further arranged: the push-pull rod is provided with push-and-pull head, the push-pull rod direction backwards to one end of piston
It pushes and pulls first side and is arranged at intervals with connection sheet, the bottom surface of the movable sleeve and the connection sheet towards the side of movable sleeve cooperation company
It connects.
By using above-mentioned technical proposal, push-pull rod is provided with connection sheet towards first side is pushed and pulled, when movable sleeve direction pushes away
The side of pull head cooperates towards the side of movable sleeve with connection sheet and abuts, and pushes the second alar part on movable sleeve, so that living
Dynamic set does opposite sliding along the central axis of cylinder, and movable sleeve exerts a force to connection sheet, so that connection sheet drives piston component along cylinder
The inner cavity of body is opposite to be slided, and realizes the effect of drawing liquid.The preferred movable sleeve of the present invention is fixedly connected with connection sheet.Connection sheet and push-and-pull
The setting of head interval, there are spacing between connection sheet and push-and-pull head, so that a hand fixed cylinder still can be used in injection needle tube, separately
One hand carries out drawing liquid by way of driving piston component pulling push-and-pull head.
The present invention is further arranged: the cylinder is provided with the extension extended to the opposite first alar part other side.
By using above-mentioned technical proposal, the setting of extension is so that cylinder is higher than first wing backwards to the side of the first alar part
Portion passes through the second alar part band of promotion when the thumb of operator is against progress drawing liquid operation, index finger and middle finger on the first alar part
Dynamic movable sleeve pushes push-pull rod, and extension can protect the push-pull rod being gradually exposed, and the finger of operator is avoided to push away with what is exposed
Pull rod is contacted, and is guaranteed the health of push-pull rod, is avoided by finger pollution.
The present invention is further arranged: the middle line of the middle line of first alar part and second alar part is arranged in angle.
By using above-mentioned technical proposal, the middle line of the middle line of the first alar part and second alar part is arranged in angle, just
Drawing liquid operation is carried out in one hand in operator, the stabilization of injection needle tube can be kept in drawing liquid.The middle line of first alar part and second
Angle between the middle line of alar part can be any angle in 0 ° -180 °.
The present invention is further arranged: the middle line of the middle line and the second alar part of first alar part is arranged in a mutually vertical manner.
By using above-mentioned technical proposal, the present invention preferably middle line of the first alar part and the middle line of the second alar part is mutually perpendicular to
Setting, when needing to carry out drawing liquid, the thumb of operator is against the first alar part, and index finger is against the second alar part with middle finger and applies
Power is convenient for operator so that the side of movable sleeve towards push-and-pull head pushes push-pull rod and piston to slide in the inner cavity phase of cylinder
It drives movable sleeve that piston component is pushed to realize drawing liquid by the second alar part, while being vertically arranged structure and meeting ergonomics, it is convenient
Operator's one hand operates injection needle tube.
The present invention is further arranged: the fluid suction head is set at the eccentric position of the lower end surface of the syringe, the suction
The eccentric axis of liquid head and the central axes of second alar part are arranged in a mutually vertical manner.
By using above-mentioned technical proposal, fluid suction head is eccentrically set on the lower end surface of cylinder, the eccentric axis of fluid suction head
It is arranged in a mutually vertical manner with the central axes of the second alar part, so that operator when being injected using injection needle tube or drawing liquid, is injected
Or drawing liquid point can be observed always, convenient for operator in fluid suction head syringe needle piercing point alignment, observation, improve injection or
The accuracy of drawing liquid.
The present invention is further arranged: the inner peripheral wall of the movable sleeve and the outer circle wall of the cylinder are bonded to each other.
By using above-mentioned technical proposal, movable sleeve is sheathed on outside cylinder, and the thumb of operator is against the first alar part, food
Finger is against the second alar part with middle finger and exerts a force, and movable sleeve is made to push push-pull rod and piston along cylinder towards the side of push-and-pull head
It is slided in chamber phase, the inner peripheral wall of movable sleeve and the outer circle wall of cylinder are bonded to each other, so that being actively set on the excircle of cylinder
It is more bonded when doing opposite sliding on wall, is smooth, while avoiding index finger and middle finger from exerting a force on the second alar part causes movable sleeve to be sent out
It is raw to shake.
The present invention is further arranged: the diameter of the piston is greater than the internal diameter of the cylinder, on the outside piston peripheral wall
Sealing flange and the cylinder inner peripheral wall be interference fit.
By using above-mentioned technical proposal, the diameter of piston is greater than the internal diameter of the cylinder, close on outside piston peripheral wall
The inner peripheral wall for sealing flange and cylinder is interference fit, has ensured the leakproofness of injection needle tube, so that injection needle tube is in injection
Solution can be injected completely it is clean, do not remain, ambient atmos will not occur in drawing liquid leak into cause liquid in the liquid aspirated
The pollution of body.
With reference to the accompanying drawing and specific embodiment the present invention will be further described.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the overall structure of the explosion figure of the embodiment of the present invention；
Fig. 3 is the overall structure diagram of another embodiment of the present invention；
Figure label meaning: cylinder -1, extension -11, piston component -2, push-pull rod -21, piston -22 push and pull head -23, arc
Elongated slot -52 is slided in card slot -231, connection sheet -24, fluid suction head -3, the first alar part -4, movable sleeve -5, the second alar part -51.
Specific embodiment
This specific embodiment is only the explanation to the present embodiment, is not the limitation to the present embodiment, this field skill
Art personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in the scope of the claims of the present embodiment.
Referring to attached drawing 1-3, present embodiment discloses a kind of injection needle tube convenient for one-handed performance, including cylinder 1 and with cylinder
The piston component 2 that body 1 cooperates, the piston component 2 includes push-pull rod 21 and is set to the piston 22 of 21 one end of push-pull rod, described
One end of piston 22 and push-pull rod 21 is set in cylinder 1, and the other end of the push-pull rod 21 extends to outside cylinder 1, the cylinder
The lower end surface of body 1 is provided with fluid suction head 3, and the cylinder 1 symmetric position on the outer circle wall of one end of fluid suction head 3 is provided with
First alar part 4, is also arranged with movable sleeve 5 outside the cylinder 1, and the movable sleeve 5 is towards right on the outer circle wall of 3 one end of fluid suction head
Claim position be provided with the second alar part 51, be additionally provided on the movable sleeve 5 with the matched sliding elongated slot 52 of the first alar part 4, it is described
Movable sleeve 5 is slidably matched along with the cylinder 1, and the movable sleeve 5 is connected with push-pull rod 21.By using above-mentioned technical side
Case, the piston 22 of piston component 2 and one end of push-pull rod 21 are set in cylinder 1, and the other end of push-pull rod 21 extends to cylinder 1
Outside, it is symmetrically arranged with the first alar part 4 on outer circle wall of the cylinder 1 with respect to the other end of fluid suction head 3, work is also arranged with outside cylinder 1
Dynamic set 5, movable sleeve 5 is inserted in from the cylinder 1 of 3 one end of fluid suction head, and the sliding elongated slot 52 on movable sleeve 5 matches with the first alar part 4,
Movable sleeve 5 does relative motion along the central axial direction of cylinder 1, and movable sleeve 5 is towards symmetrical on the outer circle wall of 3 one end of fluid suction head
It is provided with the second alar part 51.When needing drawing liquid, operator carries out drawing liquid with a hand operation injection needle tube, is arranged with syringe needle
Fluid suction head 3 is inserted into the position for needing drawing liquid, and thumb is against to the face of the other side of the opposite fluid suction head 3 of the first alar part 4 of cylinder 1
On, index finger and middle finger are against the second alar part 51 towards on the face of 3 side of fluid suction head respectively, and index finger and middle finger apply the second alar part 51
Power slides elongated slot 52 and the opposite sliding of the first alar part 4, and the second alar part 51 is under force close to the first alar part 4, by movable sleeve
5 push from 3 one end of fluid suction head towards the other end, so that the side of movable sleeve 5 towards push-and-pull head pushes push-pull rod 21 and 22 edge of piston
It is slided in the inner cavity phase of cylinder 1, to realize the effect of drawing liquid.Thumb is against on the first alar part 4, plays fixation in drawing liquid
Effect is avoided and is shaken in blood drawing；It is exerted a force to the second alar part 51 by index finger and middle finger so that movable sleeve 5 pushes piston
Component 2 is slided to achieve the purpose that drawing liquid in cylinder 1, and operator's one-handed performance injection needle tube is facilitated to carry out drawing liquid.When
It when being injected, can still be injected according to traditional one-handed performance, thumb is against 21 opposing pistons 22 of push-pull rod
The other end end face on, index finger and middle finger are against the first alar part 4 towards the side of fluid suction head 3, and thumb pushes push-pull rod 21
The intracavitary sliding in cylinder 1 with piston 22, so that piston 22 injects solution intracavitary in cylinder 1 from fluid suction head 3
It goes, realizes the effect of injection.
The present embodiment is further arranged: the push-pull rod 21 is provided with push-and-pull head 23, the work backwards to one end of piston 22
The side of dynamic set 5 towards push-and-pull head is connect with the side of push-and-pull head 23 towards movable sleeve 5.By using above-mentioned technical proposal, push away
One end of pull rod 21 is provided with push-and-pull head 23, when movable sleeve 5 towards the side of push-and-pull head and pushes and pulls head 23 towards the one of movable sleeve 5
Side, which cooperates, to abut, and pushes the second alar part 51 on movable sleeve 5, slides relatively so that movable sleeve 5 is done along the central axis of cylinder 1
It is dynamic, 5 pairs of push-and-pull head 23 forces of movable sleeve, so that push-and-pull head 23 drives push-pull rod 21 and piston 22 relatively sliding along the inner cavity of cylinder 1
It is dynamic, realize the effect of drawing liquid.Movable sleeve 5 can be to be flexibly connected or be fixedly connected, this hair with the connection type of arc-shaped slot 231
Bright preferred movable sleeve 5 is used with arc-shaped slot 231 and is fixedly connected.
The present embodiment is further arranged: the side of push-and-pull head 23 towards the movable sleeve 5 is provided with and 5 court of movable sleeve
The arc-shaped slot 231 to match to the side of push-and-pull head, the bottom surface phase of the bottom surface of the movable sleeve 5 and the arc-shaped slot 231
Mutually abut.By using above-mentioned technical proposal, the arc-shaped slot 231 pushed and pulled on head 23 is adapted with movable sleeve 5,5 court of movable sleeve
It is caught in arc-shaped slot 231, is slided relatively when pushing movable sleeve 5 to do along the central axis of cylinder 1, activity to the side of push-and-pull head
The bottom surface of set 5 is mutually abutted with the bottom surface of arc-shaped slot 231,5 pairs of push-and-pull head 23 forces of movable sleeve, so that the push-and-pull drive of head 23 pushes away
Pull rod 21 and piston 22 realize the effect of drawing liquid along the opposite sliding in the inner cavity of cylinder 1.
The present embodiment is further arranged: the push-pull rod 21 is provided with push-and-pull head 23 backwards to one end of piston 22, described to push away
Pull rod 21 is arranged at intervals with connection sheet 24, the bottom surface of the movable sleeve 5 and 24 direction of connection sheet towards push-and-pull 23 side of head
The side of movable sleeve 5 is cooperatively connected.By using above-mentioned technical proposal, push-pull rod 21 is provided with connection towards push-and-pull 23 side of head
Piece 24 abuts when the side of movable sleeve 5 towards push-and-pull head cooperates with connection sheet 24 towards the side of movable sleeve 5, pushes and live
The second alar part 51 on dynamic set 5, so that movable sleeve 5 does opposite sliding along the central axis of cylinder 1, movable sleeve 5 is to connection sheet 24
Force realizes the effect of drawing liquid so that connection sheet 24 drives piston component 2 along the opposite sliding in the inner cavity of cylinder 1.Movable sleeve 5 with
The connection of connection sheet 24 can be to be flexibly connected or being fixedly connected, and the present invention selects movable sleeve 5 to be fixedly connected with connection sheet 24.Connection
Piece 24 and push-and-pull head 23 interval are arranged, and there are spacing between connection sheet 24 and push-and-pull head 23, so that injection needle tube still can be used
One hand fixed cylinder 1, another hand carry out drawing liquid by way of driving piston component 2 pulling push-and-pull head 23.
The present invention is further arranged: the cylinder 1 is provided with the extension 11 extended to opposite first alar part, 4 other side.
By using above-mentioned technical proposal, the setting of extension 11 so that cylinder 1 is higher than the first alar part 4 backwards to the side of the first alar part 4,
Pass through promotion 51 band of the second alar part when the thumb of operator is against progress drawing liquid operation, index finger and middle finger on the first alar part 4
Dynamic movable sleeve 5 pushes push-pull rod 21, and extension can protect the push-pull rod 21 being gradually exposed, avoid finger and the exposing of operator
Push-pull rod 21 contacted, guarantee push-pull rod 21 health, avoid by finger pollution.
The present embodiment is further arranged: the middle line of the middle line of the first alar part 4 and the second alar part 51 can be to be parallel to each other, hang down
Directly or in angle it is arranged, the present invention preferably middle line of the middle line of first alar part 4 and second alar part 51 is in angle setting.
By using above-mentioned technical proposal, the middle line of the middle line of the first alar part 4 and second alar part 51 is arranged in angle, convenient for operation
Person carries out drawing liquid operation in one hand, and the stabilization of injection needle tube can be kept in drawing liquid.
The present embodiment is further arranged: the angle between the middle line of the first alar part 4 and the middle line of the second alar part 51 can be
The middle line of any angle in 0 ° ~ 180 °, the present invention preferably middle line and the second alar part 51 of first alar part 4 is mutually perpendicular to set
It sets, as 90 ° of angles.By using above-mentioned technical proposal, the middle line of the first alar part 4 and the middle line of the second alar part 51 are mutually perpendicular to
Setting, when needing to carry out drawing liquid, the thumb of operator is against the first alar part 4, and index finger and middle finger are against the second alar part 51 simultaneously
Force, so that the side of movable sleeve 5 towards push-and-pull head pushes push-pull rod 21 and piston 22 to slide in the inner cavity phase of cylinder 1, just
It drives movable sleeve 5 that piston component 2 is pushed to realize drawing liquid by the second alar part 51 in operator, while being vertically arranged structure and meeting people
Body engineering facilitates operator's one hand to operate injection needle tube.
The present embodiment is further arranged: fluid suction head can be center or bias, this hair in the position of the lower end surface of syringe
At the eccentric position for the lower end surface that the bright preferably fluid suction head 3 is set to the syringe, the eccentric axis of the fluid suction head 3 and institute
The central axes for stating the second alar part 51 are arranged in a mutually vertical manner.By using above-mentioned technical proposal, fluid suction head 3 is eccentrically set on cylinder 1
Lower end surface on, the eccentric axis of fluid suction head 3 and the central axes of the second alar part 51 are arranged in a mutually vertical manner, so that operator is utilizing
When injection needle tube carries out injection or drawing liquid, injection or drawing liquid point can be observed always, convenient for operator to syringe needle in fluid suction head 3
Piercing point alignment, observation, improve injection or drawing liquid accuracy.
The present embodiment is further arranged: the inner peripheral wall of movable sleeve 5 and the outer circle wall of cylinder 1 can be bonded to each other
The outer circle wall of state or the state not being bonded, the inner peripheral wall and the cylinder 1 of the preferably described movable sleeve 5 of the present invention mutually pastes
It closes.By using above-mentioned technical proposal, movable sleeve 5 is sheathed on outside cylinder 1, and the thumb of operator is against the first alar part 4, index finger
The second alar part 51 is against with middle finger and is exerted a force, and movable sleeve 5 is made to push push-pull rod 21 and piston 22 along cylinder towards the side of push-and-pull head
It is slided in the inner cavity phase of body 1, the outer circle wall of the inner peripheral wall and cylinder 1 of movable sleeve 5 is bonded to each other, so that movable sleeve 5 is in cylinder
It is more bonded when doing opposite sliding on the outer circle wall of body 1, is smooth, while index finger and middle finger being avoided to exert a force on the second alar part 51
Movable sleeve 5 is caused to shake.
The present embodiment is further arranged: the diameter of the piston 22 is greater than the internal diameter of the cylinder 1,22 outer circle of piston
The inner peripheral wall of sealing flange and the cylinder 1 on peripheral wall is interference fit.By using above-mentioned technical proposal, piston 22
Diameter is greater than the internal diameter of the cylinder 1, and the inner peripheral wall of sealing flange and cylinder 1 on 22 outer circle wall of piston is matched for interference
Close, ensured the leakproofness of injection needle tube, enable injection needle tube solution injected completely in injection it is clean, do not remain,
Ambient atmos will not occur when drawing liquid and leak into the liquid aspirated the pollution for causing liquid.
Although cylinder -1 is used more herein, extension -11, piston component -2, push-pull rod -21, piston -22 pushed away
Pull head -23, arc-shaped slot -231, connection sheet -24, fluid suction head -3, the first alar part -4, movable sleeve -5, the second alar part -51, sliding
Elongated slot -52, but it does not exclude the possibility of using other terms.The use of these items is only for more easily describe to conciliate
Release the essence of the present embodiment；Being construed as any additional limitation all is disagreed with the present embodiment spirit.
Claims (10)
1. a kind of injection needle tube convenient for one-handed performance, the piston component including cylinder and with cylinder cooperation, the piston component
Including push-pull rod and it is set to the piston of push-pull rod one end, one end of the piston and push-pull rod is set in cylinder, described to push away
The other end of pull rod extends to outside cylinder, and the lower end surface of the cylinder is provided with fluid suction head, the cylinder backwards to fluid suction head one
Symmetric position is provided with the first alar part on the outer circle wall at end, it is characterised in that: it is also arranged with movable sleeve outside the cylinder, it is described
Movable sleeve is provided with the second alar part towards symmetric position on the outer circle wall of fluid suction head one end, be additionally provided on the movable sleeve with
The matched sliding elongated slot of first alar part, along being slidably matched with the cylinder, the movable sleeve is connected the movable sleeve with push-pull rod
It is dynamic.
2. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the push-pull rod is backwards
One end of piston is provided with push-and-pull head, and the movable sleeve connects towards the side of push-and-pull head and push-and-pull head towards the side of movable sleeve
It connects.
3. a kind of injection needle tube convenient for one-handed performance according to claim 2, it is characterised in that: the push-and-pull head direction
The side of movable sleeve is provided with the arc-shaped slot to match with the side of the movable sleeve towards push-and-pull head, the bottom of the movable sleeve
Face is mutually abutted with the bottom surface of the arc-shaped slot.
4. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the push-pull rod is backwards
One end of piston is provided with push-and-pull head, and the push-pull rod is arranged at intervals with connection sheet towards first side is pushed and pulled, the movable sleeve
Bottom surface and the connection sheet are cooperatively connected towards the side of movable sleeve.
5. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the cylinder is provided with
The extension extended to the opposite first alar part other side.
6. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: first alar part
The middle line of middle line and second alar part is arranged in angle.
7. a kind of injection needle tube convenient for one-handed performance according to claim 6, it is characterised in that: first alar part
Central axes and the central axes of the second alar part are arranged in a mutually vertical manner.
8. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the movable sleeve it is interior
Circumferential wall and the outer circle wall of the cylinder are bonded to each other.
9. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the fluid suction head setting
At the eccentric position of the lower end surface of the syringe, the eccentric axis of the fluid suction head and the central axes of second alar part are mutual
It is vertically arranged.
10. a kind of injection needle tube convenient for one-handed performance according to claim 1, it is characterised in that: the piston it is straight
Diameter is greater than the internal diameter of the cylinder, and the inner peripheral wall of sealing flange and the cylinder on the outside piston peripheral wall is matched for interference
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622671.4A CN110237360A (en) | 2019-07-11 | 2019-07-11 | A kind of injection needle tube convenient for one-handed performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622671.4A CN110237360A (en) | 2019-07-11 | 2019-07-11 | A kind of injection needle tube convenient for one-handed performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110237360A true CN110237360A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622671.4A Pending CN110237360A (en) | 2019-07-11 | 2019-07-11 | A kind of injection needle tube convenient for one-handed performance |
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| Country | Link |
|---|---|
| CN (1) | CN110237360A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990135A (en) * | 1989-08-29 | 1991-02-05 | Truesdale Jr R Grant | Inoculator and needle therefor |
| KR20050004776A (en) * | 2002-12-02 | 2005-01-12 | 리트렉터블 테크놀로지스 인코포레이티드 | One-use retracting syringe with positive needle retention |
| DE202012006191U1 (en) * | 2012-06-16 | 2012-07-11 | Harlad Reitz-Lennemann | Medical syringe |
| CN208927276U (en) * | 2018-03-28 | 2019-06-04 | 成都医学院 | A kind of syringe |
| CN211410480U (en) * | 2019-07-11 | 2020-09-04 | 陶崇林 | Injection syringe convenient to one-hand operation |
-
2019
- 2019-07-11 CN CN201910622671.4A patent/CN110237360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990135A (en) * | 1989-08-29 | 1991-02-05 | Truesdale Jr R Grant | Inoculator and needle therefor |
| KR20050004776A (en) * | 2002-12-02 | 2005-01-12 | 리트렉터블 테크놀로지스 인코포레이티드 | One-use retracting syringe with positive needle retention |
| DE202012006191U1 (en) * | 2012-06-16 | 2012-07-11 | Harlad Reitz-Lennemann | Medical syringe |
| CN208927276U (en) * | 2018-03-28 | 2019-06-04 | 成都医学院 | A kind of syringe |
| CN211410480U (en) * | 2019-07-11 | 2020-09-04 | 陶崇林 | Injection syringe convenient to one-hand operation |
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