CN203694241U - Closed type infusion connector - Google Patents
Closed type infusion connector Download PDFInfo
- Publication number
- CN203694241U CN203694241U CN201420032334.2U CN201420032334U CN203694241U CN 203694241 U CN203694241 U CN 203694241U CN 201420032334 U CN201420032334 U CN 201420032334U CN 203694241 U CN203694241 U CN 203694241U
- Authority
- CN
- China
- Prior art keywords
- infusion
- upper shell
- self
- closed type
- filter membrane
- 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.)
- Expired - Lifetime
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000005241 right ventricle Anatomy 0.000 description 3
- 208000032840 Catheter-Related Infections Diseases 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 210000001147 pulmonary artery Anatomy 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 206010064687 Device related infection Diseases 0.000 description 1
- 206010037368 Pulmonary congestion Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a closed type infusion connector. The closed type infusion connector comprises an annular hollow spiral cavity formed by an upper shell and a lower shell, a Luer taper connected with an infusion tool is arranged on the upper portion of the upper shell, and a LUER taper connected with an infusion catheter is arranged at the lower end of the lower shell. The closed type infusion connector is characterized in that a composite film is arranged in an inlet in the top end of the upper shell, a self-sealing infusion channel is formed in the composite film in the axial direction, a connector of the infusion tool is inserted into the self-sealing infusion channel to form an infusion system separated from the external world, a precise filter film is arranged in the spiral cavity below the self-sealing infusion channel, and the precise filter film has the function of precise filtering and the function of preventing air from entering the lower end channel after madefaction. The closed type infusion connector is simple in structure, good in sealing performance, effective in filtering, and capable of effectively preventing air cocks, and the using safety of the closed type infusion connector can be improved.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of closed transfusion joint.
Background technology
It is airtight that closed transfusion joint is mainly used in the end of remaining needle, CVC, PICC conduit, can connect syringe washing pipe or connect transfusion device transfusion and use, the patient who is specially adapted to venous transfusion uses, the patient who rescues as child, critical patient, chemotherapy patients, continuation and the patient who has water, electrolyte balance imbalance.Along with sealing joint being widely used clinically, the incidence rate of related complication raises gradually, and wherein modal is catheter associated infection (CRBSI), the generation of aeroembolism and the incidence rate of pricking wound.Closed transfusion joint is considered to pollute the original position of conduit inner face, thereby the inner gateway that causes infusing pollutes, and causes Central Venous Catheter-related Infection.The entering of gas during more because of each transfusion operation, gas remains in tract always, and enters human body with liquid, has increased patient and produce the probability of aeroembolism (air embolism).Enter the air of vein, can be introduced into right atrium with blood flow, then enter right ventricle.As few in air capacity, along with the contraction of heart is pressed into pulmonary artery by right ventricle, and be distributed in lung small artery, absorb finally by blood capillary, damage less; As large in air capacity, air, at right ventricle internal congestion pulmonary artery entrance, can not enter in lung blood and carries out gas exchange, causes body severe depletion of oxygen, even causes patient death.
Summary of the invention
The purpose of this utility model is to provide a kind of closed transfusion joint, and this infusion connector is simple in structure, airtight performance good, effective filtration also can effectively avoid aeroembolism to produce, and improves the safety that closed transfusion joint uses.
The technical solution of the utility model is as follows:
A kind of closed transfusion joint, comprise the spiral cavity that is formed annular hollow by upper shell and lower house, upper shell top is provided with the female Luer being connected with infusion utensil, lower house lower end is provided with the female Luer being connected with transfusion catheter, it is characterized in that: described upper shell top entrance is provided with and closes film, close film and axially form self-enclosed infusion channel, the joint of infusion utensil inserts described self-enclosed infusion channel can form the transfusion system being isolated from the outside, in spiral cavity below self-enclosed infusion channel, be provided with accurate filter membrane, after having secondary filter and moistening, accurate filter membrane prevents that gas from entering the function of filter membrane lower end passage.
Described outer face of closing film top and be fixed on upper shell entrance, closes film bottom and is bonded at upper shell inner cavity surface.
Described accurate filter membrane is welded on the inner cavity surface of lower house.
Described catheter adapter is provided with block outward, in order to sealing screw cavity.
The beneficial effects of the utility model are that infusion connector of the present utility model, without using acupuncture, is effectively protected medical personnel's safety, avoids medical personnel to be stabbed by syringe needle; Before transfusion, close film in closure state, be easy to disinfect, infusion-completed is removed after the syringe or transfusion device of connection, and closing film can be automatically closed, and surface does not have gap, edge, and antibacterial is difficult for field planting and intrusion; After normal washing pipe operation, withdraw from fast syringe, joint closes in film can produce malleation, prevents blood backflow, reduces the incidence rate of plugging; Accurate filter membrane can effectively filter harmful granule in washing pipe liquid, improves security performance, and after moistening, the performance of accurate filter membrane can prevent that gas from entering filter membrane lower end passage along with closing the folding of film effectively, reduces the probability that aeroembolism forms.
Brief description of the drawings
Fig. 1 is the appearance assumption diagram of this utility model closed transfusion joint.
Fig. 2 is the sectional structure chart of this utility model closed transfusion joint.
In figure, 1 closes film, 2 spiral cavities, 3 upper shells, 4 lower houses, 5 female Luer that are connected with infusion utensil, 6 conduit jointings, 7 self-enclosed infusion channel, 8 accurate filter membranes, 9 blocks.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of closed transfusion joint, comprise the spiral cavity 2 that is formed annular hollow by upper shell 3 and lower house 4, upper shell 3 tops are provided with the joint 5 being connected with infusion utensil, lower house 4 lower ends are provided with the conduit jointing 6 being connected with transfusion catheter, described upper shell top entrance is provided with and closes film 1, close film 1 and axially form self-enclosed infusion channel 7, the joint of transfusion device inserts described self-enclosed infusion channel 7 can form the transfusion system being isolated from the outside, and is provided with accurate filter membrane 8 in the spiral cavity below self-enclosed infusion channel 7.
As preferred structure, close film 1 top and be fixed on the outer face of upper shell 3 entrances, close film 1 bottom and be bonded at upper shell 3 inner cavity surface.Accurate filter membrane 8 is welded on the inner cavity surface of lower house 4.The outer block 9 that is provided with of conduit jointing 6, in order to sealing screw cavity, ensures the aseptic of joint.
This utility model infusion connector close film initial condition in normally closed state (naked eyes almost be can't see the aperture lines of closing film), the invasion in isolated outside contamination source, protection connecting duct inner chamber safety.While using joint to connect transfusion, closed transfusion joint is inserted in connection tube one end, closes film softened, can be used for normal infusion.Accurate filter membrane 8 can effectively filter harmful granule in washing pipe liquid, improves security performance.The performance of accurate filter membrane self can prevent that gas from entering filter membrane lower end passage along with closing the folding of film effectively simultaneously, reduces the probability that aeroembolism forms.
Claims (4)
1. a closed transfusion joint, comprise the spiral cavity that is formed annular hollow by upper shell and lower house, upper shell top is provided with the female Luer being connected with infusion utensil, lower house lower end is provided with the female Luer being connected with transfusion catheter, it is characterized in that: described upper shell top entrance is provided with and closes film, close film and axially form self-enclosed infusion channel, the joint of infusion utensil inserts described self-enclosed infusion channel can form the transfusion system being isolated from the outside, in spiral cavity below self-enclosed infusion channel, be provided with accurate filter membrane, after having secondary filter and moistening, accurate filter membrane prevents that gas from entering the function of filter membrane lower end passage.
2. closed transfusion joint according to claim 1, is characterized in that: described in close film top and be fixed on upper shell entrance outer face, close film bottom and be bonded at upper shell inner cavity surface.
3. closed transfusion joint according to claim 1, is characterized in that: described accurate filter membrane is welded on the inner cavity surface of lower house.
4. closed transfusion joint according to claim 1, is characterized in that: described conduit jointing is provided with block outward, in order to sealing screw cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032334.2U CN203694241U (en) | 2014-01-20 | 2014-01-20 | Closed type infusion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032334.2U CN203694241U (en) | 2014-01-20 | 2014-01-20 | Closed type infusion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203694241U true CN203694241U (en) | 2014-07-09 |
Family
ID=51044748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420032334.2U Expired - Lifetime CN203694241U (en) | 2014-01-20 | 2014-01-20 | Closed type infusion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203694241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645460A (en) * | 2015-02-12 | 2015-05-27 | 昆山安卓精密模具有限公司 | Fatigue-resistant needle-free joint |
| CN107754049A (en) * | 2016-12-27 | 2018-03-06 | 上海交通大学 | Prevent the device that remaining needle positive pressure connector pollutes and the method based on the device |
-
2014
- 2014-01-20 CN CN201420032334.2U patent/CN203694241U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645460A (en) * | 2015-02-12 | 2015-05-27 | 昆山安卓精密模具有限公司 | Fatigue-resistant needle-free joint |
| CN104645460B (en) * | 2015-02-12 | 2018-01-26 | 昆山安卓精密模具有限公司 | A kind of endurance type needleless joint |
| CN107754049A (en) * | 2016-12-27 | 2018-03-06 | 上海交通大学 | Prevent the device that remaining needle positive pressure connector pollutes and the method based on the device |
| WO2018120873A1 (en) * | 2016-12-27 | 2018-07-05 | 上海交通大学 | Device for preventing contamination of positive-pressure connector of indwelling needle and method based on same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |