CN104027249A - Medical infusion dosing device - Google Patents
Medical infusion dosing device Download PDFInfo
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- CN104027249A CN104027249A CN201410280652.5A CN201410280652A CN104027249A CN 104027249 A CN104027249 A CN 104027249A CN 201410280652 A CN201410280652 A CN 201410280652A CN 104027249 A CN104027249 A CN 104027249A
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- syringe
- piston cylinder
- push
- piston
- connecting rod
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Abstract
The invention relates to a medical infusion dosing device. The tail of a needle cylinder is a closed end; the sidewall of the needle cylinder is provided with an elongated through hole. A sliding device comprises a piston cylinder, a piston, a U-shaped connecting rod and a sliding handle; the piston cylinder is attached to the outer wall of the needle cylinder; the sidewall of the piston cylinder is provided with an air hole corresponding to the elongated through hole; the piston is disposed inside the piston cylinder and is connected with the sliding handle through the U-shaped connecting rod. A vent tube is arranged on the sidewall of a needle. The open end of the vent tube faces a needle holder. The sidewall, close to the closed end, of the vent tube is provided with an air inlet; both the air inlet and the open end of the vent tube are provided with air filter films. The medical infusion dosing device is simple in structure and convenient to use; cross contamination of medicine liquor caused when a syringe is operated can be prevented effectively; the needle of the medical infusion dosing device is provided with the vent tube, balance of inside and outside air pressures of a medicine bottle can be maintained during suctioning, dosing is easier, and dosing efficiency can be improved.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of medical infusion chemicals dosing plant.
Background technology
At present, the medicine adding syringe generally using in hospital is common syringe, by syringe, piston and push rod, formed, medical personnel move by push rod push-and-pull piston when operation, realize the operations such as aspiration medicinal liquid, admixing medical solutions, the process of making up a prescription is: syringe is inserted and in medicinal liquid bottle, extracts a small amount of medicinal liquid; Then extract syringe and insert in powdered medicine bottle, liquid medicine injection is entered in powdered medicine bottle, after medicated powder and medicinal liquid dissolve completely, then extracting mixed liquor out and inject in infusion bottle.But find in actual use, medical personnel are when carrying out the operations such as aspiration medicinal liquid, admixing medical solutions, and finger can touch push rod, there is the contaminated possibility of medicinal liquid, easily cause cross infection.And above-mentioned, make up a prescription in process, because medicine bottle is hermetically-sealed construction, while therefore operating, can produce certain Negative Pressure Difference, make very effort of operation.
Summary of the invention
The object of the invention is the deficiency for solving the problems of the technologies described above, a kind of medical infusion chemicals dosing plant is provided.
The present invention is the deficiency solving the problems of the technologies described above, and the technical scheme adopting is: a kind of medical infusion chemicals dosing plant, comprise syringe, syringe needle, needle holder and push-pull device at fixed, and syringe needle is fixedly installed in needle holder, and syringe is connected by head and needle holder;
The afterbody of described syringe is blind end, syringe along the circumferential direction offers strip through-hole by caudal sidewall, described push-pull device at fixed comprises piston cylinder, piston, U-shaped connecting rod and push-pull handle, piston cylinder is the arc shell of an end opening, piston cylinder is sticked at syringe by caudal outer wall, and the opening of piston cylinder is towards the cephalad direction setting of syringe, described piston cylinder is provided with passage near the position of corresponding strip through-hole on the sidewall of blind end, between piston cylinder and syringe, by strip through-hole and passage, realize and being communicated with, in piston cylinder, be provided with piston, piston is connected with push-pull handle by U-shaped connecting rod, the opening direction of described U-shaped connecting rod is contrary with the opening direction of piston cylinder, one end of U-shaped connecting rod is placed in piston cylinder and is fixedly connected with piston, the other end of U-shaped connecting rod is placed in outside piston cylinder and is fixedly connected with push-pull handle, axial direction along syringe on the outer wall of described piston cylinder is provided with two guide rails, push-pull handle is fastened on two guide rails, push-pull handle can be along the displacement of guide rail direction, on the sidewall of piston cylinder opening, be fixed with baffle plate, the body of rod that U-shaped connecting rod is fixedly connected with push-pull handle is through this baffle plate setting, and be provided with spring between push-pull handle and baffle plate, spring housing is located on the body of rod that U-shaped connecting rod is fixedly connected with push-pull handle,
On the sidewall of described syringe needle, be provided with breather, breather is the cylindric body of an end opening, the other end of breather is blind end, and this blind end is spininess, the opening of described breather is towards needle holder setting, and offers air inlet on the sidewall of breather near blind end, and the open end of this air inlet and breather is provided with air-filtering membrane, on described syringe needle, be also arranged with back-up ring, back-up ring is arranged on the position between air inlet and the opening of breather.
The material of described needle holder is plastics.
beneficial effect
Drug feeding device of the present invention can be avoided operator's finger touches in dosing process to attend the meeting and touch push rod and the piston of medicinal liquid, simple in structure, easy to use, cross infection to medicinal liquid in the time of effectively preventing operating syringe, and the syringe needle of this chemicals dosing plant has breather, in taking out medicine process, can maintain the air pressure balance inside and outside medicine bottle, make feeding operations more laborsaving, can improve the work efficiency of dosing.
Accompanying drawing explanation
Fig. 1 is the structural representation of drug feeding device of the present invention;
Fig. 2 is the structural representation of drug feeding device of the present invention while taking out medicine;
Labelling in figure: 1, syringe, 2, syringe needle, 3, needle holder, 4, strip through-hole, 5, piston cylinder, 6, piston, 7, U-shaped connecting rod, 8, push-pull handle, 9, breather, 10, air inlet, 11, back-up ring, 12, baffle plate, 13, spring.
The specific embodiment
As shown in the figure: a kind of medical infusion chemicals dosing plant, comprise syringe 1, syringe needle 2, needle holder 3 and push-pull device at fixed, syringe needle 2 is fixedly installed in needle holder 3, and the material of described needle holder 3 is plastics.Syringe 1 is connected by head and needle holder 3.The afterbody of described syringe 1 is blind end, syringe 1 along the circumferential direction offers strip through-hole 4 by caudal sidewall, described push-pull device at fixed comprises piston cylinder 5, piston 6, U-shaped connecting rod 7 and push-pull handle 8, piston cylinder 5 is the arc shell of an end opening, piston cylinder 5 is sticked at syringe 1 by caudal outer wall, and the opening of piston cylinder 5 is towards the cephalad direction setting of syringe 1, on the sidewall of described piston cylinder 5 near blind end, the position of corresponding strip through-hole 4 is provided with passage, between piston cylinder 5 and syringe 1, by strip through-hole 4 and passage, realize and being communicated with, in piston cylinder 5, be provided with piston 6, piston 6 is connected with push-pull handle 8 by U-shaped connecting rod 7, the opening direction of described U-shaped connecting rod 7 is contrary with the opening direction of piston cylinder 5, one end of U-shaped connecting rod 7 is placed in piston cylinder 5 and is fixedly connected with piston 6, the other end of U-shaped connecting rod 7 is placed in outside piston cylinder 5 and is fixedly connected with push-pull handle 8, axial direction along syringe 1 on the outer wall of described piston cylinder 5 is provided with two guide rails, push-pull handle 8 is fastened on two guide rails, push-pull handle 8 can be along the displacement of guide rail direction, on the sidewall of piston cylinder 5 openings, be fixed with baffle plate 12, the body of rod that U-shaped connecting rod 7 is fixedly connected with push-pull handle 8 arranges through this baffle plate 12, and be provided with spring 13 between push-pull handle 8 and baffle plate 12, spring 13 is set on the body of rod that U-shaped connecting rod 7 is fixedly connected with push-pull handle 8.
On the sidewall of described syringe needle 2, be provided with breather 9, breather 9 is the cylindric body of an end opening, the other end of breather 9 is blind end, and this blind end is spininess, the opening of described breather 9 arranges towards needle holder 3, and offer air inlet 10 on the sidewall of breather 9 near blind end, the open end of this air inlet 10 and breather 9 is provided with air-filtering membrane, on described syringe needle 2, be also arranged with back-up ring 11, back-up ring 11 is arranged on the position between air inlet 10 and the opening of breather 9.
The use procedure of drug feeding device of the present invention is as follows: in the time of the medicine in medicine bottle need to being extracted into syringe, first syringe needle is passed to the bottle stopper of medicine bottle, and syringe needle is pushed away always inward, until back-up ring withstands bottle stopper, then promote push-pull handle, push-pull handle is moved to syringe needle direction, push-pull handle drives piston to move to syringe needle direction, make formation negative pressure in syringe, thereby can the medicinal liquid in medicine bottle be sucked in syringe by syringe needle, when need to be by medical liquid squeezing in syringe, oppositely promote push-pull handle (now, under the elastic force effect of spring, promoting push-pull handle can be more prone to), push-pull handle is moved to syringe needle rightabout, medicinal liquid in syringe is formed to malleation, thereby medicinal liquid can be extruded, whole process herb liquid can contact piston and connecting rod, can avoid liquid medicine contamination, and in taking out medicine process, owing to forming negative pressure in medicine bottle, extraneous air can enter in medicine bottle through opening and the air inlet of breather, consistent with the air pressure maintaining inside and outside medicine bottle, the process that makes to take out medicine is more laborsaving.
Claims (2)
1. a medical infusion chemicals dosing plant, comprises syringe (1), syringe needle (2), needle holder (3) and push-pull device at fixed, and it is upper that syringe needle (2) is fixedly installed on needle holder (3), and syringe (1) is connected by head and needle holder (3), it is characterized in that:
The afterbody of described syringe (1) is blind end, syringe (1) along the circumferential direction offers strip through-hole (4) by caudal sidewall, described push-pull device at fixed comprises piston cylinder (5), piston (6), U-shaped connecting rod (7) and push-pull handle (8), piston cylinder (5) is the arc shell of an end opening, piston cylinder (5) is sticked at syringe (1) by caudal outer wall, and the opening of piston cylinder (5) is towards the cephalad direction setting of syringe (1), described piston cylinder (5) is provided with passage near the position of corresponding strip through-hole (4) on the sidewall of blind end, between piston cylinder (5) and syringe (1), by strip through-hole (4) and passage, realize and being communicated with, in piston cylinder (5), be provided with piston (6), piston (6) is connected with push-pull handle (8) by U-shaped connecting rod (7), the opening direction of described U-shaped connecting rod (7) is contrary with the opening direction of piston cylinder (5), one end of U-shaped connecting rod (7) is placed in piston cylinder (5) and is fixedly connected with piston (6), the other end of U-shaped connecting rod (7) is placed in outside piston cylinder (5) and is fixedly connected with push-pull handle (8), axial direction along syringe (1) on the outer wall of described piston cylinder (5) is provided with two guide rails, push-pull handle (8) is fastened on two guide rails, push-pull handle (8) can be along the displacement of guide rail direction, on the sidewall of piston cylinder (5) opening, be fixed with baffle plate (12), the body of rod that U-shaped connecting rod (7) is fixedly connected with push-pull handle (8) arranges through this baffle plate (12), and be provided with spring (13) between push-pull handle (8) and baffle plate (12), spring (13) is set on the body of rod that U-shaped connecting rod (7) is fixedly connected with push-pull handle (8),
On the sidewall of described syringe needle (2), be provided with breather (9), breather (9) is the cylindric body of an end opening, the other end of breather (9) is blind end, and this blind end is spininess, the opening of described breather (9) arranges towards needle holder (3), and breather (9) offers air inlet (10) near on the sidewall of blind end, the open end of this air inlet (10) and breather (9) is provided with air-filtering membrane, on described syringe needle (2), be also arranged with back-up ring (11), back-up ring (11) is arranged on the position between air inlet (10) and the opening of breather (9).
2. a kind of medical infusion chemicals dosing plant as claimed in claim 1, is characterized in that: the material of described needle holder (3) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280652.5A CN104027249B (en) | 2014-06-23 | 2014-06-23 | A kind of medical infusion chemicals dosing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280652.5A CN104027249B (en) | 2014-06-23 | 2014-06-23 | A kind of medical infusion chemicals dosing plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104027249A true CN104027249A (en) | 2014-09-10 |
| CN104027249B CN104027249B (en) | 2016-09-21 |
Family
ID=51458401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410280652.5A Expired - Fee Related CN104027249B (en) | 2014-06-23 | 2014-06-23 | A kind of medical infusion chemicals dosing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104027249B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050165355A1 (en) * | 2004-01-28 | 2005-07-28 | P. Rowan Smith | Intravenous catheter device |
| US20080214996A1 (en) * | 2003-06-20 | 2008-09-04 | Kimmell Steven D | Needleless injectors |
| CN202920636U (en) * | 2012-12-03 | 2013-05-08 | 陈庆强 | Dual-channel filter dosing injector |
| CN203139253U (en) * | 2013-03-22 | 2013-08-21 | 蔡根顺 | Plastic puncture doser |
| CN203315356U (en) * | 2013-06-28 | 2013-12-04 | 陈庆强 | Medicine feeder with filter device |
| CN203970911U (en) * | 2014-06-23 | 2014-12-03 | 河南科技大学第一附属医院 | A kind of medical infusion chemicals dosing plant |
-
2014
- 2014-06-23 CN CN201410280652.5A patent/CN104027249B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080214996A1 (en) * | 2003-06-20 | 2008-09-04 | Kimmell Steven D | Needleless injectors |
| US20050165355A1 (en) * | 2004-01-28 | 2005-07-28 | P. Rowan Smith | Intravenous catheter device |
| CN202920636U (en) * | 2012-12-03 | 2013-05-08 | 陈庆强 | Dual-channel filter dosing injector |
| CN203139253U (en) * | 2013-03-22 | 2013-08-21 | 蔡根顺 | Plastic puncture doser |
| CN203315356U (en) * | 2013-06-28 | 2013-12-04 | 陈庆强 | Medicine feeder with filter device |
| CN203970911U (en) * | 2014-06-23 | 2014-12-03 | 河南科技大学第一附属医院 | A kind of medical infusion chemicals dosing plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104027249B (en) | 2016-09-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Dan Inventor before: Yang Yanli |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |