CN104645461A - Continuous microsyringe outer sleeve - Google Patents
Continuous microsyringe outer sleeve Download PDFInfo
- Publication number
- CN104645461A CN104645461A CN201510089715.3A CN201510089715A CN104645461A CN 104645461 A CN104645461 A CN 104645461A CN 201510089715 A CN201510089715 A CN 201510089715A CN 104645461 A CN104645461 A CN 104645461A
- Authority
- CN
- China
- Prior art keywords
- check valve
- liquid storage
- shell
- container cavity
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- A61M5/31525—Dosing
- A61M5/31531—Microsyringes, e.g. having piston bore diameter close or equal to needle shaft diameter
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/0007—Special media to be introduced, removed or treated introduced into the 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/048—Anaesthetics
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 continuous microsyringe outer sleeve. The continuous microsyringe outer sleeve is arranged in the existing syringe, so as to realize continuous injection. The continuous microsyringe outer sleeve is characterized by comprising an outer casing, a liquid storage unit, a volume adjusting unit and a pushing unit, wherein the liquid storage unit is communicated with the outer casing, the volume adjusting unit is arranged in the outer casing, the liquid storage unit comprises a liquid storage cavity, an air valve, a first piston, a first one-way valve and a second one-way valve, the allowable flowing direction of the first one-way valve flows from the interior of the outer casing to the liquid storage cavity, the first one-way valve is in the closing state when the microsyringe outer sleeve is used for injecting, the allowable flowing direction of the second one-way valve flows from the liquid storage cavity to the outer casing, a third one-way valve is arranged in the outer casing, the upper side of the third one-way valve is provided with a second containing cavity, the lower side of the third one-way valve is provided with a first containing cavity, the first one-way valve is communicated with the second containing cavity, the second one-way valve is communicated with the first containing cavity, the air valve is communicated with outside air, and the initial position of the first piston is close to the air valve. The continuous microsyringe outer sleeve is used for continuous trace injection.
Description
Technical field
The present invention relates to a kind of continuous micro syringe jacket, belong to medical instruments field.
Background technology
In surgical procedures, need to carry out fix.When needing to anaesthetize perilesional multiple site of patient, the injection using conventional syringe to carry out multi-point at present more.During multiple spot anesthesia, the narcotic injection volume of each some position is general smaller, and the at this moment control of doctor to the anaesthesia dosage of each some position just seems particularly important.Use traditional syringe to carry out multi-point anesthesia, the uppity problem of anaesthesia dosage can be brought, make troubles to the operation of anesthetist, also bring the risk in operation to patient.
Summary of the invention
The object of the present invention is to provide a kind of continuous micro syringe jacket, to solve the problem,
Present invention employs following technical scheme:
A kind of continuous micro syringe jacket, injecting continuously for loading existing syringe, it is characterized in that, comprise: shell, liquid storage unit, is connected with shell, volume-adjustment unit, is arranged in shell, and pushing unit, wherein, liquid storage unit comprises liquid storage cylinder, air valve, first piston, first check valve, second check valve, the flow direction that first check valve allows for flow to liquid storage cylinder in shell, when using microsyringe overcoat to inject, first check valve is in closed condition, liquid is stoped to flow into liquid storage cylinder direction from shell, the flow direction that second check valve allows is for flow to shell direction from liquid storage cylinder, there is in shell the 3rd check valve, the upside of the 3rd check valve is the second container cavity, downside is the first container cavity, first check valve is connected with the second container cavity, second check valve is connected with the first container cavity, air valve communicates with outside air, the initial position of first piston is near air valve.
In addition, continuous micro syringe jacket of the present invention, can also have such feature: wherein, and the 3rd check valve comprises stator, first spring and closure ball, stator is arranged in the second container cavity, and stator is provided with through hole, and the first spring one end is connected with stator, the other end is connected with closure ball, closure ball is arranged at the passage place between the second container cavity and the first container cavity, and under original state, closure ball is closed channel under the elastic force effect of the first spring.
In addition, continuous micro syringe jacket of the present invention, such feature can also be had: wherein, there is in second container cavity the second piston, one end of second piston and the push rod of syringe offset, the other end contacts with the liquid phase in the second container cavity, to push rod applied thrust under the effect of hydraulic pressure.
In addition, continuous micro syringe jacket of the present invention, such feature can also be had: wherein, volume-adjustment unit has regulating block, stopper and the second spring, the outside of regulating block has screw thread, match with the female thread of enclosure relevant position, pushing unit has pushing handle, pushing handle is connected by key in the position through regulating block, regulating block has corresponding keyway, can relative sliding between key and keyway, namely pushing handle can drive regulating block to rotate in the horizontal direction, simultaneously, pushing handle can slide by relative accommodation block in the vertical direction, stopper is fixedly connected with shell, porose in the middle of stopper, push rod is passed be connected with the 3rd piston, pushing handle has pushing piece, second spring is connected between stopper and pushing piece.
In addition, continuous micro syringe jacket of the present invention, can also have such feature: wherein, at the arranged outside scale of shell, display single injection volume, can draw the relation between single injection volume and pitch by following formula: V=(h-ax) × π R
2, wherein, V represents the volume of single injection, and h representative rotates the initial distance of regulating block to banking stop, and rotate the number of turns that regulating block rotates when a representative regulates, x represents pitch, then h-ax representative regulates the stroke of back piston, and R represents the inside radius of injector syringe.
The beneficial effect of the invention
According to continuous micro syringe jacket of the present invention, owing to have employed liquid storage unit, and liquid storage unit has liquid storage cylinder; Air valve; First piston; First check valve and the second check valve, meanwhile, also have the 3rd check valve in shell, the both sides of the 3rd check valve are respectively the first container cavity and the second container cavity, the first check valve, forms loop between the second check valve and the 3rd check valve.When pressing pushing unit and injecting, the liquid of certain volume enters the second container cavity from the first container cavity by the 3rd check valve, thus the medicament of pushing syringe injection respective volume.When unclamping pushing unit, due to the effect of the restoring force of pushing unit, liquid is sucked in the first container cavity from liquid storage cylinder, when again press lose unit inject time, again the liquid of certain volume is injected in the second container cavity, and then the medicament of pushing syringe injection respective volume.And so forth, quantitative continuous micro injection can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of continuous micro syringe jacket;
Fig. 2 is the annexation schematic diagram of regulating block and pushing handle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described,
Fig. 1 is the structural representation of continuous micro syringe jacket, and as shown in Figure 1, continuous micro syringe jacket comprises shell 11, liquid storage unit; Volume-adjustment unit, and pushing unit.
The top of shell 11 inwall has syringe holddown groove 12.The bottom of shell 11 inwall has banking stop 26.Syringe holddown groove 12, for the jut of fixing existing injector syringe 31 both sides, prevents syringe in injection process from loosening.
Liquid storage unit comprises liquid storage cylinder 14, air valve 15, first piston 28, the first check valve 16, second check valve 17.Liquid storage cylinder 14 is connected with shell with the second check valve 17 by the first check valve 16.The flow direction that first check valve 16 allows for flow to liquid storage cylinder 14 in shell 11, and when using microsyringe overcoat to inject, the first check valve 16 is in closed condition.Liquid storage cylinder 14 is flowed into from shell to stop liquid.The flow direction that second check valve 17 allows is for flow to shell from liquid storage cylinder 14.
Volume-adjustment unit has regulating block 23, stopper 26 and the second spring 22.The outside of regulating block 23 has screw thread, matches with the female thread of the inner relevant position of shell 11.As shown in Figure 2, pushing handle 21 is connected with regulating block 23 by key 211 in the position through regulating block 23, regulating block 23 has corresponding keyway, can relative sliding between key 211 and keyway, namely pushing handle 21 can drive regulating block 23 to rotate in the horizontal direction, meanwhile, pushing handle 21 can slide by relative accommodation block 23 in the vertical direction.Stopper 26 is fixedly connected with shell, porose in the middle of stopper 26, makes push rod 21 through being connected with the 3rd piston 25.The second spring 22 is provided with between stopper 26 and pushing piece 27.Rotate regulating block 23 and can regulate distance between itself and pushing piece 27, thus regulate the distance that pushing handle 21 can advance, namely the syringe distance that can advance, is also the injection volume of syringe.The pitch of corresponding screw thread and the relation of volume injected are set, such as, relation before pitch and 5ml syringe.At the arranged outside scale of shell 11, the relation between the position of vision-control block 23 and volume injected, convenient adjustment.The relation between single injection volume and pitch can be drawn: V=(h-ax) × π R by following formula
2, wherein, V represents the volume of single injection, and h represents the initial distance of regulating block 23 to banking stop 26, the number of turns that when a representative regulates, regulating block 23 rotates, and x represents pitch, then h-ax representative regulates the stroke of back piston, and R represents the inside radius of injector syringe 31.
Pushing unit comprises the second piston 13; 3rd check valve; And push rod 21.Push rod 21 front end has the 3rd piston 25, and rear end has button 24, and pushing piece 27 is positioned at the middle part of push rod 21, is fixedly connected on push rod 21.3rd check valve has stator 18, the first spring 20, and closure ball 19.Stator 18 has through hole.Under original state, the first spring 20 pairs of closure balls 19 apply elastic force, make closure ball 19 closed channel 29.
The running of continuous micro syringe is as follows:
First, regulating block 23 is rotated, by single injection volume-adjustment to predetermined value.Now the first check valve 16 is in closed condition, the second check valve 17 and air valve 15 in running order.All the time liquid is full of between 3rd piston 25 and the second piston 13.
Secondly, press the button 24 promotions the 3rd piston the 25, three piston 25 and promote liquid and move upward, wash closure ball 19 open and enter in the chamber of top, and then promote the second piston 13 and travel forward, the push rod 32 promoting existing syringe is injected.
3rd, after completing injection, because hydraulic pressure declines, passage 29, under the effect of the first spring 20, is closed by closure ball 19 again.Release button 24, under the elastic force effect of the second spring 22, pushing piece 27 drive the 3rd piston 25 gets back to initial position.Meanwhile, under the elastic force effect of the second spring 22, the liquid being arranged in liquid storage cylinder 14 is inhaled into the first container cavity 291 below passage 29 by the second check valve 17, and air is entered in liquid storage cylinder 14 by air valve 15, and first piston 28 is inwardly moved.Now the first container cavity 291 refills liquid, waits pending promotion next time.
4th, repeat above-mentioned steps until multi-point injection terminates.Now, taking off syringe, open the first check valve 16, make it in running order, to pressing down the second piston 13, the liquid stream in the second container cavity 292 above passage 29 being got back in liquid storage cylinder 14.Then close the first check valve 16, continuous micro syringe gets back to original state, can carry out the injection of a new round.
Claims (5)
1. a continuous micro syringe jacket, injecting continuously for loading existing syringe, it is characterized in that, comprise:
Shell;
Liquid storage unit, is connected with described shell;
Volume-adjustment unit, is arranged in described shell; And
Pushing unit,
Wherein, described liquid storage unit comprises liquid storage cylinder, air valve, first piston, first check valve, second check valve, the flow direction that the first check valve allows for flow to liquid storage cylinder in shell, when use microsyringe overcoat is injected, first check valve is in closed condition, stop liquid to flow into liquid storage cylinder direction from shell, the flow direction that the second check valve allows is for flow to shell direction from liquid storage cylinder
Have the 3rd check valve in described shell, the upside of the 3rd check valve is the second container cavity, and downside is the first container cavity, and described first check valve is connected with described second container cavity, and described second check valve is connected with described first container cavity,
Described air valve communicates with outside air, and the initial position of described first piston is near described air valve.
2. continuous micro syringe jacket as claimed in claim 1, is characterized in that:
Wherein, described 3rd check valve comprises stator, the first spring and closure ball,
Described stator is arranged in the second container cavity, and described stator is provided with through hole,
Described first spring one end is connected with described stator, and the other end is connected with described closure ball,
Described closure ball is arranged at the passage place between described second container cavity and the first container cavity, and under original state, described closure ball closes described passage under the elastic force effect of described first spring.
3. continuous micro syringe jacket as claimed in claim 1, is characterized in that:
Wherein, have the second piston in described second container cavity, one end of described second piston and the push rod of described syringe offset, and the other end contacts with the liquid phase in described second container cavity, to described push rod applied thrust under the effect of hydraulic pressure.
4. continuous micro syringe jacket as claimed in claim 1, is characterized in that:
Wherein, described volume-adjustment unit has regulating block, stopper and the second spring,
The outside of regulating block has screw thread, match with the female thread of enclosure relevant position, described pushing unit has pushing handle, described pushing handle is being connected by key through the position of regulating block, and regulating block has corresponding keyway, can relative sliding between key and keyway, namely pushing handle can drive regulating block to rotate in the horizontal direction, meanwhile, pushing handle can slide by relative accommodation block in the vertical direction
Described stopper is fixedly connected with shell, porose in the middle of stopper, push rod is passed and is connected with the 3rd piston,
Described pushing handle has pushing piece, and described second spring is connected between described stopper and described pushing piece.
5. vector row syringe jacket as claimed in claim 4, is characterized in that:
Wherein, at the arranged outside scale of shell, display single injection volume,
The relation between single injection volume and pitch can be drawn: V=(h-ax) × π R by following formula
2,
Wherein, V represents the volume of single injection, and h representative rotates the initial distance of regulating block to banking stop, and rotate the number of turns that regulating block rotates when a representative regulates, x represents pitch, then h-ax representative regulates the stroke of back piston, and R represents the inside radius of injector syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089715.3A CN104645461A (en) | 2015-02-27 | 2015-02-27 | Continuous microsyringe outer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089715.3A CN104645461A (en) | 2015-02-27 | 2015-02-27 | Continuous microsyringe outer sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104645461A true CN104645461A (en) | 2015-05-27 |
Family
ID=53237418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510089715.3A Pending CN104645461A (en) | 2015-02-27 | 2015-02-27 | Continuous microsyringe outer sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104645461A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943962A (en) * | 2015-06-29 | 2015-09-30 | 宁波江东晟利工业产品设计有限公司 | Paste push tube provided with press structure |
| CN104958809A (en) * | 2015-06-01 | 2015-10-07 | 戎静华 | Anti-coagulation liquid checking infusion device |
| CN106954463A (en) * | 2017-04-24 | 2017-07-18 | 山东省蚕业研究所 | A kind of careless classification inoculation apparatus of silkworm and application |
| CN113181478A (en) * | 2021-06-01 | 2021-07-30 | 北京华脉泰科医疗器械股份有限公司 | Syringe with a needle |
| CN114134028A (en) * | 2022-01-29 | 2022-03-04 | 季华实验室 | Cell microinjection apparatus and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5034003A (en) * | 1988-11-21 | 1991-07-23 | Raymond Denance | Injection device having a stabilizing sight which actuates a safety valve for the needle |
| CN1251049A (en) * | 1997-03-29 | 2000-04-19 | 朴志勲 | Continuous injecting apparatus |
| CN1507360A (en) * | 2000-05-22 | 2004-06-23 | �ź㴫 | Medical arrangement |
| CN101554498A (en) * | 2009-05-21 | 2009-10-14 | 陈凯 | Needleless injection system used for continuously injecting animals |
| CN201469817U (en) * | 2009-08-13 | 2010-05-19 | 王喜增 | Continuous injector |
-
2015
- 2015-02-27 CN CN201510089715.3A patent/CN104645461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5034003A (en) * | 1988-11-21 | 1991-07-23 | Raymond Denance | Injection device having a stabilizing sight which actuates a safety valve for the needle |
| CN1251049A (en) * | 1997-03-29 | 2000-04-19 | 朴志勲 | Continuous injecting apparatus |
| CN1507360A (en) * | 2000-05-22 | 2004-06-23 | �ź㴫 | Medical arrangement |
| CN101554498A (en) * | 2009-05-21 | 2009-10-14 | 陈凯 | Needleless injection system used for continuously injecting animals |
| CN201469817U (en) * | 2009-08-13 | 2010-05-19 | 王喜增 | Continuous injector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958809A (en) * | 2015-06-01 | 2015-10-07 | 戎静华 | Anti-coagulation liquid checking infusion device |
| CN104943962A (en) * | 2015-06-29 | 2015-09-30 | 宁波江东晟利工业产品设计有限公司 | Paste push tube provided with press structure |
| CN106954463A (en) * | 2017-04-24 | 2017-07-18 | 山东省蚕业研究所 | A kind of careless classification inoculation apparatus of silkworm and application |
| CN113181478A (en) * | 2021-06-01 | 2021-07-30 | 北京华脉泰科医疗器械股份有限公司 | Syringe with a needle |
| CN114134028A (en) * | 2022-01-29 | 2022-03-04 | 季华实验室 | Cell microinjection apparatus and control method |
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Application publication date: 20150527 |
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