CN204521829U - A kind of fixed-quantity injector - Google Patents
A kind of fixed-quantity injector Download PDFInfo
- Publication number
- CN204521829U CN204521829U CN201520150858.6U CN201520150858U CN204521829U CN 204521829 U CN204521829 U CN 204521829U CN 201520150858 U CN201520150858 U CN 201520150858U CN 204521829 U CN204521829 U CN 204521829U
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- sleeve
- push rod
- fixed
- ribs
- inner process
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Abstract
A kind of fixed-quantity injector disclosed in this utility model, comprise sleeve, piston and push rod, one end of described sleeve connects injection port, the other end is provided with the opening for grafting push rod, the front end of described push rod is connected with piston, be sleeved in sleeve, described push rod is evenly distributed with four equal ribs for one week along its axial line, the formation press section, rear end of four ribs, it is characterized in that: all equidistantly on four described ribs be provided with outer process, inwall corresponding to the opening of described sleeve is provided with and outer process inner process in opposite directions, described inner process is that elastomeric material is made, the rising height of described outer process is more than or equal to the rising height of inner process, and the vertical dimension axis from the top of outer process to push rod equals the internal diameter of sleeve.The design's structure is simple, easy to use, accurate quantitative analysis, and dosing error when can reduce preparation to greatest extent and inject, security performance is high, clinic is promoted.
Description
Technical field
This utility model belongs to technical field of medical instruments, in particular to a kind of fixed-quantity injector of one.
Background technology
Internal hemorrhoid sclerosing agent injection therapy is extensively carried out in the anorectum department of each rank hospital because of simple to operate, determined curative effect.
In clinical treatment, in internal hemorrhoid sclerosing agent the concentration of XIAOZHILING ZHUSHEYE, consumption and clinical efficacy and drug safety closely related, as in internal hemorrhoid sclerosing agent process for preparation, if the excessive concentration of XIAOZHILING ZHUSHEYE, then easily cause internal hemorrhoid injection sclerotherapy district mucosal necrosis and cause the danger of massive hemorrhage, as too low in xiaozhiling injection concentration, then do not reach desirable curative effect; Equally, in injection for curing process, as excessive in sclerosing agent consumption, also easily cause internal hemorrhoid injection sclerotherapy district mucosal necrosis and cause the danger of massive hemorrhage, as very few in sclerosing agent consumption, do not reach desirable curative effect yet.Therefore, usually use 10ml disposable syringe according to 2% lignocaine 2.5ml clinically: water for injection 2.5ml: XIAOZHILING ZHUSHEYE 5.0m is made into 10ml1:1 intermixture; Over the course for the treatment of, each blood stasis is injected successively, how much general each blood stasis sclerosing agent consumption is is determined according to clinical experience and internal hemorrhoid blood stasis size by doctor, generally, I degree internal hemorrhoid each blood stasis sclerosing agent consumption 2-4ml, II degree internal hemorrhoid each blood stasis sclerosing agent consumption 4-6ml, III degree internal hemorrhoid each blood stasis sclerosing agent consumption 6-8ml.
At present, conventional disposable syringe has following shortcoming.
1) 2% lidocaine injection, water for injection, XIAOZHILING ZHUSHEYE are mixed with the mixed hardening agent of 10ml in strict accordance with 1:1 proportions by the disposable syringe inconvenience used clinically, use syringe to extract corresponding dosage according to doctors experience, be easy to the ratio mistake causing medicinal liquid.
2) disposable syringe used at present is inconvenient to the consumption measuring sclerosing agent in internal hemorrhoid injection sclerotherapy therapeutic process, especially for young anorectum department doctor, easily occur that consumption is excessive cause internal hemorrhoid injection sclerotherapy district mucosal necrosis and occur the danger of massive hemorrhage, or consumption is very few and occur the situation that clinical efficacy is not good enough.
Summary of the invention
For the problems referred to above, it is simple, easy to operate that the purpose of this utility model is just to provide its structure a kind of, convenient and practical, a kind of fixed-quantity injector that when can reduce preparation to greatest extent and inject, the security performance of dosing error is high.
Technical scheme of the present invention: a kind of fixed-quantity injector, comprise sleeve, piston and push rod, one end of described sleeve connects injection port, the other end is provided with the opening for grafting push rod, the front end of described push rod is connected with piston, be sleeved in sleeve, described push rod is evenly distributed with four equal ribs for one week along its axial line, the formation press section, rear end of four ribs, all equidistantly on four described ribs be provided with outer process, inwall corresponding to the opening of described sleeve is provided with and outer process inner process in opposite directions, described inner process is that elastomeric material is made, the rising height of described outer process is more than or equal to the rising height of inner process, and the vertical dimension axis from the top of outer process to push rod equals the internal diameter of sleeve.
Further, it is the numerical value that 0.1-1ml is corresponding that the distance between adjacent two outer processes on described same rib is set to nominal capacity.
Further, described outer process and inner process triangle symmetrically.
Further, the circumferentially formation that described inner process is arranged on sleeve lining is banded.
Further, four through parts of being circumferentially formed as that described inner process is arranged on sleeve lining are arranged.
Further, described outer process and rib one-body molded.
Compared with prior art, a kind of fixed-quantity injector that this utility model provides, structure is simple, easy to operate, when liquid medicine injection, the internal hemorrhoid of corresponding different size need inject not commensurability medicinal liquid, when the outer process of push rod touches inner process, push rod has certain resistance, points out operator to carry out the injection of a unit quantity, because inner process has elasticity like this, former state can be recovered after rubbed, in like manner, lift push rod, during allotment medicinal liquid, owing to push rod and sleeve lining being provided with the location facilities of standard, make to reduce error to greatest extent.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
The partial enlargement structural representation of Fig. 2 inner process of the present utility model and outer process.
The plan structure schematic diagram of Fig. 3 banded inner process of the present utility model.
The plan structure schematic diagram of the inner process that Fig. 4 through part of the present utility model is arranged.
In figure: 10, injection port, 20, sleeve, 21, opening, 22, inner process, 30, piston, 40, push rod, 50, rib, 51, outer process, 60, press section.
Detailed description of the invention
Referring to accompanying drawing, provide detailed description of the invention of the present utility model, be used for being further described formation of the present utility model.
Embodiment one:
A kind of fixed-quantity injector as shown in Figures 1 and 2, comprise sleeve 20, piston 30 and push rod 40, one end of sleeve 20 connects injection port 10, the other end is provided with the opening 21 for grafting push rod 40, the front end of push rod 40 is connected with piston 30, be sleeved in sleeve 20, push rod 40 is evenly distributed with four equal ribs 50 for one week along its axial line, the formation press section, rear end 60 of four ribs 50, all equidistantly on four ribs 50 be provided with outer process 51, inwall corresponding to the opening 21 of sleeve 20 is provided with and outer process 51 inner process 22 in opposite directions, inner process 22 is made for elastomeric material, the rising height of outer process 51 is more than or equal to the rising height of inner process 22, and the vertical dimension axis from the top of outer process 51 to push rod 40 equals the internal diameter of sleeve 20.
Further, it is the numerical value that 0.1-1ml is corresponding that the distance between adjacent two outer processes 51 on same rib 50 is set to nominal capacity, and identical nominal capacity, arranges different units, and convenient operation person calculates.
Further, outer process 51 and inner process 22 triangle symmetrically, be set to triangle, Relative friction dynamics can reduce.
Further, as shown in Figure 3, the circumferentially formation that inner process 22 is arranged on sleeve 20 inwall is banded, and such setting, even if push rod 40 rotates in sleeve 20, all can have the inner process 22 of outer process 51 correspondence to coordinate with it.
Further, outer process 51 is one-body molded with rib 50, ensure that the intensity of push rod 40.
Embodiment two:
As shown in Figure 4, four through parts that are circumferentially formed as that described inner process 22 is arranged on sleeve 20 inwall are arranged, and arrange like this, outer process 51 and inner process 22 will accurately be located.
All the other structures are with described in embodiment one.
Compared with prior art, a kind of fixed-quantity injector that this utility model provides, structure is simple, easy to operate, when liquid medicine injection, the internal hemorrhoid of corresponding different size need inject not commensurability medicinal liquid, when the outer process 51 of push rod 40 touches inner process 22, push rod 40 has certain resistance, such prompting operator has carried out the injection of a unit quantity, because inner process 22 has elasticity, former state can be recovered after rubbed, in like manner, lift push rod 40, during allotment medicinal liquid, owing to push rod 40 and sleeve 20 inwall being provided with the location facilities of standard, make to reduce error to greatest extent.
Embodiment is only be described the preferred embodiment of the present invention above, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (6)
1. a fixed-quantity injector, comprise sleeve (20), piston (30) and push rod (40), one end of described sleeve (20) connects injection port (10), the other end is provided with the opening (21) for grafting push rod (40), the front end of described push rod (40) is connected with piston (30), be sleeved in sleeve (20), described push rod (40) is evenly distributed with four equal ribs (50) for one week along its axial line, the formation press section, rear end (60) of four ribs (50), it is characterized in that: all equidistantly on four described ribs (50) be provided with outer process (51), inwall corresponding to the opening (21) of described sleeve (20) is provided with and outer process (51) inner process in opposite directions (22), described inner process (22) is made for elastomeric material, the rising height of described outer process (51) is more than or equal to the rising height of inner process (22), and the vertical dimension axis from the top of outer process (51) to push rod (40) equals the internal diameter of sleeve (20).
2. a kind of fixed-quantity injector according to claim 1, is characterized in that: it is the numerical value that 0.1-1ml is corresponding that the distance between adjacent two outer processes (51) on described same rib (50) is set to nominal capacity.
3. a kind of fixed-quantity injector according to claim 1, is characterized in that: described outer process (51) and inner process (22) triangle symmetrically.
4. a kind of fixed-quantity injector according to claim 1, is characterized in that: the circumferentially formation that described inner process (22) is arranged on sleeve (20) inwall is banded.
5. a kind of fixed-quantity injector according to claim 1, is characterized in that: four through parts that are circumferentially formed as that described inner process (22) is arranged on sleeve (20) inwall are arranged.
6. a kind of fixed-quantity injector according to claim 1, is characterized in that: described outer process (51) is one-body molded with rib (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150858.6U CN204521829U (en) | 2015-03-17 | 2015-03-17 | A kind of fixed-quantity injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150858.6U CN204521829U (en) | 2015-03-17 | 2015-03-17 | A kind of fixed-quantity injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204521829U true CN204521829U (en) | 2015-08-05 |
Family
ID=53735894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520150858.6U Expired - Fee Related CN204521829U (en) | 2015-03-17 | 2015-03-17 | A kind of fixed-quantity injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204521829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772112A (en) * | 2018-06-06 | 2018-11-09 | 南京大树生物医疗技术股份有限公司 | A kind of capillary device of fixed quantity drain |
| CN110812673A (en) * | 2019-11-29 | 2020-02-21 | 新乡医学院 | A corkscrew quantitative syringe |
-
2015
- 2015-03-17 CN CN201520150858.6U patent/CN204521829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772112A (en) * | 2018-06-06 | 2018-11-09 | 南京大树生物医疗技术股份有限公司 | A kind of capillary device of fixed quantity drain |
| CN108772112B (en) * | 2018-06-06 | 2024-10-08 | 南京大树生物医疗技术股份有限公司 | Capillary tube device for quantitative liquid discharge for multiple times |
| CN110812673A (en) * | 2019-11-29 | 2020-02-21 | 新乡医学院 | A corkscrew quantitative syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160317 |