CN209884899U - Silica gel elastic sealing plug for positive-pressure needleless connector - Google Patents
Silica gel elastic sealing plug for positive-pressure needleless connector Download PDFInfo
- Publication number
- CN209884899U CN209884899U CN201821221084.1U CN201821221084U CN209884899U CN 209884899 U CN209884899 U CN 209884899U CN 201821221084 U CN201821221084 U CN 201821221084U CN 209884899 U CN209884899 U CN 209884899U
- Authority
- CN
- China
- Prior art keywords
- elastic sealing
- sealing plug
- silica gel
- protective cap
- needleless connector
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000741 silica gel Substances 0.000 title claims abstract description 26
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 34
- 239000003814 drug Substances 0.000 claims description 32
- 239000011229 interlayer Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 5
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical group Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a silica gel elastic sealing plug for a positive pressure needleless connector, which comprises a plunger part, a sealing round platform and a reset part, wherein the plunger part is provided with a hole; the reset part is a restoring rib with an X-shaped cross section. The utility model provides a silica gel elastic sealing plug that is used for malleation needleless connector that sealing performance is good, and is safe nontoxic.
Description
Technical Field
The utility model relates to the technical field of medical machinery, concretely relates to a silica gel elastic sealing plug for malleation needleless connector.
Background
At present, when the infusion needs to be repeatedly carried out for a long time in the process of intravenous infusion treatment, a venous indwelling needle or an indwelling catheter entering the vein of a human body is generally connected with a liquid medicine injection device through a connector, so that the medicine adding is realized. The traditional joint with the latex membrane has the defect that the medicine can be added only through acupuncture, and because the latex membrane is punctured by a needle, pollutants and rubber scraps of the needle can enter liquid medicine and enter a human body along with the liquid medicine, great potential safety hazards are caused to the health of patients.
With the development of the intravenous infusion technology, the needle-free closed infusion technology is also widely applied to clinic, the needle-free infusion refers to a kind of apparatus which can repeatedly convey or extract liquid to an infusion pipeline without puncture, and a needle-free infusion joint is adopted to provide a channel and an injection port for infusion. Most of the conventional needleless infusion connectors are complex in structure, complex to operate and poor in tightness.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a silica gel elastic sealing plug which has good sealing performance, is safe and nontoxic and is used for the positive pressure needleless connector.
In order to achieve the purpose, the technical scheme of the utility model is to design a silica gel elastic sealing plug for a positive pressure needleless connector, which comprises a protective cap, a silica gel elastic sealing plug and a three-way pipe fitting, wherein the end part of the protective cap is cylindrical and is provided with a liquid medicine inlet, the other port of the protective cap is connected with the first port of the three-way pipe fitting in a sealing manner, and the second port and the third port of the three-way pipe fitting are respectively an infusion inlet and an infusion outlet which are matched with infusion equipment; the protective cap and the tee pipe fitting form an accommodating cavity, and the accommodating cavity is a channel for liquid to flow; the silica gel elastic sealing plug is arranged in the accommodating cavity and comprises a plunger part, a sealing round table and a resetting part, the bottom of the plunger part is matched and connected with the upper bottom surface of the sealing round table, the lower bottom surface of the sealing round table is connected with the resetting part, the plunger part is tightly attached to the inside of the end part of the liquid medicine inlet of the protective cap to form a sealing structure, the sealing round table is tightly attached to the diameter-changing part of the protective cap to form a sealing structure, and a hole is processed in the plunger part; the reset part is a restoring rib with an X-shaped cross section.
The second port of the three-way pipe fitting is communicated with the liquid inlet end of the infusion catheter, the third port of the three-way pipe fitting is communicated with the liquid outlet end of the infusion catheter, and the first port of the three-way pipe fitting is used for the medicine adding process in the infusion process. The end part of the injector is communicated with the medicine inlet of the protective cap in the medicine adding process, the silica gel elastic sealing plug positioned at the medicine inlet is pressed inwards, injected medicines enter the accommodating cavity and then enter the infusion catheter along with infusion to enter the body of a patient, when the injector is pulled out, the silica gel elastic sealing plug is provided with the reset part, the silica gel elastic sealing plug can block the liquid medicine inlet end of the protective cap again, air or bacteria cannot enter the infusion catheter, and the operation is simple and convenient.
Preferably, the cross section of the hole of the plunger part is rhombic. The plunger portion is provided with a hole to ensure that the head of the injector does not need to completely enter the accommodating cavity, and the liquid medicine can smoothly enter the accommodating cavity.
As a preferable technical scheme, the outer part of the liquid medicine inlet end part of the protective cap is provided with threads. The stability of the liquid medicine entering is ensured, and the liquid medicine cannot leak from the head of the injector and the liquid medicine inlet of the protective cap in the medicine adding process.
As an optimized technical scheme, the silica gel elastic sealing plug is formed by integrally forming a plunger part, a sealing circular truncated cone and a resetting part. The silica gel elastic sealing plug has good resilience and recovery capability.
Preferably, the other port of the protective cap is in threaded tight fit with the first port of the tee.
Preferably, the other port of the protective cap is in interference fit with the first port of the tee.
As a preferable technical scheme, the section of the restoring rib at the tail part of the restoring part is of an arch structure. The liquid medicine is kept slowly along the arch surface, and bubbles generated in the liquid medicine flowing process are avoided.
As a preferable technical scheme, the inner diameters of the second port and the third port of the tee pipe fitting are smaller than the inner diameter of the accommodating cavity.
As a preferred technical scheme, the pipe wall of the three-way pipe fitting is of a vacuum sandwich structure.
According to a preferable technical scheme, the outer wall of the protective cap is of a sandwich structure, metal powder is arranged in the sandwich, an air inlet is formed in the outer portion of the end portion of the liquid medicine inlet of the protective cap and communicated with the sandwich structure, and a sealing rubber plug matched with the caliber of the air inlet is arranged at the air inlet. The protective cap comprises a protective cap body, wherein the protective cap body is provided with a liquid inlet end, the liquid inlet end is provided with a protective cap liquid inlet, the protective cap liquid inlet end is provided with a liquid outlet, and the protective cap liquid inlet is formed in the protective cap body.
The utility model has the advantages and the beneficial effects that: the utility model provides a silica gel elasticity sealing plug for malleation needleless connector structural design is reasonable, and convenient to use through silica gel elasticity sealing plug and the setting in holding chamber both made things convenient for in the passing through of liquid medicine, and silica gel elasticity sealing plug can kick-back rapidly again, has ensured the leakproofness of needleless structure and has hindered the fungus performance. The plunger portion of silica gel elasticity sealing plug adopts the hole design to be convenient for the passing through of liquid medicine, need not to push the holding chamber with plunger portion is whole, has avoided the bacterium at syringe pipe end to enter into the liquid medicine, has improved the aseptic nature of operation. The heating structure is arranged on the tube wall of the liquid medicine inlet end, so that discomfort of a patient caused by adding super-cooled medicine into the infusion tube in winter is avoided.
Drawings
FIG. 1 is a schematic structural view of the positive-pressure needleless connector for infusion of the present invention;
FIG. 2 is an exploded view of the positive-pressure needleless connector for infusion of the present invention
In the figure: 1. a protective cap; 2. a silica gel elastic sealing plug; 3. a tee pipe fitting; 4. a first port; 5. a second port; 6. a third port; 7. an accommodating cavity; 8. a plunger portion; 9. a reset section; 10. a hole; 11. a thread; 12. sealing the round table; 13. a diameter-variable portion.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Examples
A silica gel elastic sealing plug for a positive-pressure needleless connector comprises a protective cap 1, a silica gel elastic sealing plug 2 and a three-way pipe fitting 3, wherein the end part of the protective cap is cylindrical and is provided with a liquid medicine inlet, the other port of the protective cap is in sealing connection with a first port 4 of the three-way pipe fitting, and a second port 5 and a third port 6 of the three-way pipe fitting are respectively an infusion inlet and an infusion outlet which are matched with infusion equipment; the protective cap and the tee pipe fitting form a containing cavity 7, and the containing cavity is a channel for liquid to flow; the silica gel elastic sealing plug is arranged in the accommodating cavity and comprises a plunger part 8, a sealing circular truncated cone 12 and a resetting part 9, the bottom of the plunger part 8 is matched and connected with the upper bottom surface of the sealing circular truncated cone 12, the lower bottom surface of the sealing circular truncated cone is connected with the resetting part 9, the plunger part is tightly attached to the inner part of the liquid medicine inlet end part of the protective cap to form a sealing structure, the sealing circular truncated cone 12 is tightly attached to the reducing part 13 of the protective cap to form a sealing structure, and a hole 10 is processed in the plunger part; the reset part is a restoring rib with an X-shaped cross section.
The section of the hole of the plunger part is in a diamond shape.
The outer part of the liquid medicine inlet end part of the protective cap is provided with threads 11.
The silica gel elastic sealing plug is a silica gel elastic sealing plug formed by integrally forming a plunger part, a sealing circular truncated cone and a reset part.
The other port of the protective cap is in threaded tight fit with the first port of the tee pipe fitting.
The other port of the protective cap is in interference fit with the first port of the tee pipe fitting.
The section of the restoring rib at the tail part of the restoring part is of an arch structure.
The inner diameters of the second port and the third port of the three-way pipe fitting are smaller than the inner diameter of the accommodating cavity.
The pipe wall of the three-way pipe fitting is of a vacuum sandwich structure.
The outer wall of the protective cap is of an interlayer structure, metal powder is arranged in the interlayer, an air inlet is formed in the outer portion of the end portion of the liquid medicine inlet of the protective cap and communicated with the interlayer structure, and a sealing rubber plug matched with the caliber of the air inlet is arranged at the air inlet.
The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A silica gel elastic sealing plug for a positive-pressure needleless connector comprises a protective cap, a silica gel elastic sealing plug and a tee pipe fitting, wherein an accommodating cavity is formed in the protective cap and the tee pipe fitting; the restoring part is a restoring rib with an X-shaped cross section; the outer wall of the protective cap is of an interlayer structure, metal powder is arranged in the interlayer, an air inlet is formed in the outer portion of the end portion of the liquid medicine inlet of the protective cap and communicated with the interlayer structure, and a sealing rubber plug matched with the caliber of the air inlet is arranged at the air inlet.
2. The silicone elastic sealing plug for the positive-pressure needleless connector of claim 1, wherein the cross section of the hole of the plug portion is diamond-shaped.
3. The silicone elastic sealing plug for the positive-pressure needleless connector according to claim 2, wherein the silicone elastic sealing plug is a silicone elastic sealing plug in which the plug portion, the sealing circular truncated cone and the restoring portion are integrally formed.
4. The silicone elastic sealing plug for the positive-pressure needleless connector as claimed in claim 3, wherein the cross section of the restoring rib at the tail of the restoring portion is an arch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821221084.1U CN209884899U (en) | 2018-07-31 | 2018-07-31 | Silica gel elastic sealing plug for positive-pressure needleless connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821221084.1U CN209884899U (en) | 2018-07-31 | 2018-07-31 | Silica gel elastic sealing plug for positive-pressure needleless connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209884899U true CN209884899U (en) | 2020-01-03 |
Family
ID=68989221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821221084.1U Withdrawn - After Issue CN209884899U (en) | 2018-07-31 | 2018-07-31 | Silica gel elastic sealing plug for positive-pressure needleless connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209884899U (en) |
-
2018
- 2018-07-31 CN CN201821221084.1U patent/CN209884899U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200103 Effective date of abandoning: 20231129 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200103 Effective date of abandoning: 20231129 |