CN219375872U - Anti-leakage positive pressure silica gel valve - Google Patents
Anti-leakage positive pressure silica gel valve Download PDFInfo
- Publication number
- CN219375872U CN219375872U CN202320145817.2U CN202320145817U CN219375872U CN 219375872 U CN219375872 U CN 219375872U CN 202320145817 U CN202320145817 U CN 202320145817U CN 219375872 U CN219375872 U CN 219375872U
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- positive pressure
- silica gel
- valve
- sleeve
- upper cover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an anti-leakage positive pressure silica gel valve, which comprises a positive pressure upper shell, a valve upper cover and a valve lower shell, wherein the positive pressure upper shell is connected with an external pipeline, the valve upper cover and the valve lower shell are connected with an indwelling needle through luer connectors, positive pressure silica gel is arranged between the positive pressure upper shells, one end of the positive pressure silica gel stretches into a liquid injection hole of the positive pressure upper shell, the other end of the positive pressure silica gel is matched and clamped with the valve upper cover, a valve silica gel pad is arranged between the valve upper cover and the valve lower shell, and the valve silica gel pad is integrally connected between the external pipeline and the indwelling needle when in use and is connected with the indwelling needle through luer connectors, so that the valve silica gel valve is convenient to install, the positive pressure silica gel is applied to deform in the positive pressure upper shell, a gap is formed between the sealing joint of the positive pressure upper shell and the positive pressure silica gel, and a channel is pushed, namely, liquid medicine circulates in a positive pressure cavity is realized, the sealing joint is restored between the positive pressure upper shell and the positive pressure silica gel, and the sealing joint is enhanced, when the sealing performance is enhanced, blood backflow is prevented, and the technical requirements of operators are lowered.
Description
Technical Field
The utility model relates to the technical field of infusion accessories, in particular to a reverse leakage-preventing positive pressure silica gel valve.
Background
Intravenous catheters are widely used in clinic with increased medical levels. The indwelling needle is widely used, meanwhile, problems are found, the indwelling needle needs to be repeatedly washed and sealed, so that the workload of doctors is increased, the incidence rate of phlebitis is increased, in actual operation, no matter an infusion set or an injector is withdrawn from the indwelling needle, negative pressure is generated to return blood due to poor sealing effect, thrombus is formed, and in order to prevent the generation of the non-return blood, liquid is required to be withdrawn while the needle is withdrawn, and the requirements on professional technology and experience accumulation of operators are high.
Disclosure of Invention
The utility model aims to provide a reverse leakage-proof positive pressure silica gel valve which has the characteristics of being convenient to install, enhancing sealing performance, preventing blood return and reducing technical requirements of operators.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the utility model provides a prevent anti-positive pressure silica gel valve that leaks, includes positive pressure epitheca, valve upper cover and the valve inferior valve that passes through luer connection with the needle of keeping somewhere and be connected, be equipped with positive pressure silica gel between the valve upper cover between the positive pressure epitheca, positive pressure silica gel one end stretches into the notes liquid downthehole of positive pressure epitheca, the other end cooperates the joint with the valve upper cover, be equipped with the valve silica gel pad between valve upper cover and the valve inferior valve.
Preferably, the positive pressure upper shell comprises a positive pressure sleeve and a positive pressure screw joint, the positive pressure screw joint is internally provided with the liquid injection hole, the positive pressure sleeve is internally provided with a positive pressure inner cavity, and the liquid injection hole is communicated with the positive pressure inner cavity through a sealing surface.
Further preferably, the positive pressure silica gel is including the cooperation locate silica gel sleeve in the positive pressure inner chamber and with locate the downthehole silica gel head of annotating the liquid, the silica gel sleeve with the valve upper cover is connected, silica gel head upper end is equipped with sealed terminal surface, and the feed liquor breach has been seted up to the silica gel head, link to each other through sealed shoulder between silica gel head and the silica gel sleeve, the draw-in groove has been seted up to the silica gel sleeve inner wall.
Further preferably, a circle of pressurizing sealing ring is formed between the sealing end face and the sealing shoulder at the upper part of the positive pressure silica gel.
Further preferably, rebound reinforcing ribs are formed on the inner side wall of the silica gel sleeve of the positive pressure silica gel.
Further preferably, the valve upper cover comprises a connecting seat, a connecting sleeve is arranged at the upper end of the connecting seat, a leakage-proof ring is arranged on the outer wall of the connecting sleeve, and the leakage-proof ring is in fit and clamping connection with the clamping groove.
Further preferably, the positive pressure sleeve is in sealing fit with the connecting seat and the valve upper cover is in sealing fit with the valve lower shell.
Further preferably, an outer ring groove connected with the connecting seat and an inner ring groove connected with the valve silica gel pad are formed in the valve lower shell.
The utility model has the beneficial effects that: the valve is characterized by comprising a positive pressure upper shell connected with an external pipeline, a valve upper cover and a valve lower shell connected with an indwelling needle through a luer connector, wherein positive pressure silica gel is arranged between the positive pressure upper shells and between the valve upper covers, one end of the positive pressure silica gel stretches into a liquid injection hole of the positive pressure upper shell, the other end of the positive pressure silica gel is matched and clamped with the valve upper cover, a valve silica gel pad is arranged between the valve upper cover and the valve lower shell, and when the valve is used, the valve silica gel pad is integrally connected between the external pipeline and the indwelling needle and is connected with the indwelling needle through the luer connector, the valve upper cover and the indwelling needle are convenient to install, the positive pressure silica gel is applied to enable the positive pressure silica gel to deform in the positive pressure upper shell, a gap is formed by sealing and jointing separation between the positive pressure upper shell and the positive pressure silica gel, a channel is opened, liquid medicine circulates in a positive pressure cavity, pressure is applied to disappear, sealing jointing is restored between the positive pressure upper shell and the positive pressure silica gel, blood backflow is prevented, and technical requirements of operators are lowered.
Drawings
Fig. 1 is a schematic view of an exploded structure of the present utility model.
Fig. 2 is a sectional view of the present utility model in a normal state.
Fig. 3 is a sectional view showing an operation state of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, an anti-leakage positive pressure silica gel 4 valve comprises a positive pressure upper shell 1, a valve upper cover 2 and a valve lower shell 3, wherein the positive pressure upper shell 1 and the valve upper cover 2 are connected with an external pipeline, the valve lower shell 3 is connected with a retaining needle through a luer connector, a positive pressure silica gel 4 is arranged between the positive pressure upper shells 1, one end of the positive pressure silica gel 4 stretches into a liquid injection hole 5 of the positive pressure upper shell 1, the other end of the positive pressure silica gel 4 is matched and clamped with the valve upper cover 2, a valve silica gel pad 6 is arranged between the valve upper cover 2 and the valve lower shell 3, and when the valve upper shell is used, the valve upper shell is integrally connected between the external pipeline and the retaining needle, the valve upper shell is connected with the retaining needle through a luer connector, so that the valve upper shell is convenient to install, the valve upper shell is convenient to apply pressure to the positive pressure silica gel 4 to deform in the positive pressure upper shell 1, a gap is formed at a sealing joint between the positive pressure upper shell 1, namely, a channel is opened, liquid medicine is realized, the liquid medicine is lost in a positive pressure cavity 9, the pressure is applied to the positive pressure silica gel 4, the sealing is restored between the positive pressure upper shell 1 and the positive pressure silica gel 4, the valve is enhanced, the sealing performance is equivalent to the integral, a one-way valve is added, and backflow valve is prevented, and the technical requirements of an operator are reduced.
In this embodiment, the positive pressure upper shell 1 includes positive pressure sleeve 7 and positive pressure screwed joint 8, positive pressure screwed joint 8 is used for the connecting screw thread of being connected with different types of infusion syringe, the suitability is stronger, set up in the positive pressure screwed joint 8 annotate liquid hole 5, set up positive pressure inner chamber 9 in the positive pressure sleeve 7, annotate liquid hole 5 and positive pressure inner chamber 9 through sealed face 10 intercommunication, positive pressure silica gel 4 including the cooperation locate silica gel sleeve 11 in the positive pressure inner chamber 9 and with locate the silica gel head 12 in annotating liquid hole 5, silica gel sleeve 11 with valve upper cover 2 is connected, silica gel head 12 upper end is equipped with sealing end face 13, silica gel head 12 has seted up feed liquor breach 14, link to each other through sealing shoulder 15 between silica gel head 12 and the silica gel sleeve 11, silica gel sleeve 11 inner wall has seted up the draw-in groove, positive pressure silica gel 4 upper portion is located between sealing end face and the sealing shoulder 15 and is formed the round pressurization sealing ring, the airtight terminal surface of positive pressure silica gel 4 is filled in the notes liquid hole 5 of positive pressure upper shell 1 and is sealed up it to make its positive pressure inner chamber 1 seal face that ultrasonic pressure 15 is welded at last, and is connected to form a sealed face 10 of positive pressure inner chamber that is welded to positive pressure inner chamber 1.
In this embodiment, at least one rebound reinforcing rib 16 is formed on the inner side wall of the silica gel sleeve 11 of the positive pressure silica gel 4, so that the tightness is better.
In this embodiment, the valve upper cover 2 includes a connecting seat 17, a connecting sleeve 18 is provided at the upper end of the connecting seat 17, a leak-proof ring 19 is provided on the outer wall of the connecting sleeve 18, and the leak-proof ring 19 is engaged with the clamping groove.
In this embodiment, an outer ring groove 21 connected with the connection seat 17 and an inner ring groove 20 connected with the valve silica gel pad 6 are provided in the valve lower casing 3, and the positive pressure sleeve 7 and the connection seat 17 and the valve upper cover 2 and the valve lower casing 3 are sealed and attached by ultrasonic welding.
The working principle of the utility model is as follows: when the pressure-sensitive infusion device is used, the pressure-sensitive infusion device is connected between an external pipeline and an indwelling needle, the luer connector is connected with the indwelling needle, the inner cavity of the silicone sleeve 11 of the pressure-sensitive infusion device is deformed downwards by applying pressure to the sealing end face 13 of the pressure-sensitive infusion device, further, the sealing joint between the sealing face 10 and the sealing shoulder 15 is separated to generate a gap, the valve silicone pad 6 is pushed, namely, a channel is opened, liquid medicine circulates in the pressure-sensitive inner cavity 9, the external pipeline is evacuated after transfusion is completed, the force applied to the sealing end face 13 of the pressure-sensitive infusion device is eliminated, the valve silicone pad 6 is restored to the original closed channel, the pressure-sensitive infusion device is rebounded to the original shape, the sealing shoulder 15 of the pressure-sensitive infusion device is in sealing joint with the sealing face 10 of the pressure-sensitive infusion device 1 again, and the inner cavity volume of the pressure-sensitive infusion device 1 is reduced along with the restoration of the pressure-sensitive infusion device, so that positive pressure is generated, and blood backflow is prevented.
In addition, compared with the prior art, the valve upper cover 2 and the valve lower shell 3 are respectively arranged and connected through the valve silica gel pad 6, so that when pressure is applied to the positive pressure silica gel 4, the valve silica gel pad 6 is conveniently pushed when a gap is formed by separating the sealing joint part between the positive pressure upper shell 1 and the positive pressure silica gel 4, and the whole channel can be opened, so that the liquid medicine can circulate in the positive pressure inner cavity 9.
The present disclosure should not be construed as limiting the utility model to any particular embodiment or application within its scope as contemplated by the present disclosure.
Claims (8)
1. The utility model provides a prevent anti-positive pressure silica gel valve that leaks which characterized in that: the valve upper cover and the valve lower cover are connected through luer connectors, positive pressure silica gel is arranged between the valve upper covers between the positive pressure upper covers, one end of the positive pressure silica gel stretches into a liquid injection hole of the positive pressure upper cover, the other end of the positive pressure silica gel is clamped with the valve upper cover in a matched mode, and a valve silica gel pad is arranged between the valve upper cover and the valve lower cover.
2. The anti-leakage positive pressure silicone valve of claim 1, wherein: the positive pressure upper shell comprises a positive pressure sleeve and a positive pressure screw joint, the positive pressure screw joint is internally provided with the liquid injection hole, the positive pressure sleeve is internally provided with a positive pressure inner cavity, and the liquid injection hole is communicated with the positive pressure inner cavity through a sealing surface.
3. The anti-leakage positive pressure silicone valve of claim 2, wherein: the positive pressure silica gel is including the cooperation locate silica gel sleeve in the positive pressure inner chamber and with locate the downthehole silica gel head of annotating the liquid, the silica gel sleeve with the valve upper cover is connected, silica gel head upper end is equipped with sealed terminal surface, and the feed liquor breach has been seted up to the silica gel head, link to each other through sealed shoulder between silica gel head and the silica gel sleeve, the draw-in groove has been seted up to the silica gel sleeve inner wall.
4. A reverse leakage resistant positive pressure silicone valve as defined in claim 3, wherein: and a circle of pressurizing sealing ring is formed between the sealing end face and the sealing shoulder at the upper part of the positive pressure silica gel.
5. A reverse leakage resistant positive pressure silicone valve as defined in claim 3, wherein: and rebound reinforcing ribs are formed on the inner side wall of the silica gel sleeve of the positive pressure silica gel.
6. A reverse leakage resistant positive pressure silicone valve as defined in claim 3, wherein: the valve upper cover comprises a connecting seat, a connecting sleeve is arranged at the upper end of the connecting seat, a leakage-proof ring is arranged on the outer wall of the connecting sleeve, and the leakage-proof ring is in fit and clamping connection with the clamping groove.
7. The anti-leakage positive pressure silicone valve of claim 6, wherein: and the positive pressure sleeve is in sealing fit with the connecting seat and the valve upper cover is in sealing fit with the valve lower shell.
8. The anti-leakage positive pressure silicone valve of claim 7, wherein: an outer ring groove connected with the connecting seat and an inner ring groove connected with the valve silica gel pad are formed in the valve lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320145817.2U CN219375872U (en) | 2023-02-08 | 2023-02-08 | Anti-leakage positive pressure silica gel valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320145817.2U CN219375872U (en) | 2023-02-08 | 2023-02-08 | Anti-leakage positive pressure silica gel valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219375872U true CN219375872U (en) | 2023-07-21 |
Family
ID=87195918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320145817.2U Active CN219375872U (en) | 2023-02-08 | 2023-02-08 | Anti-leakage positive pressure silica gel valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219375872U (en) |
-
2023
- 2023-02-08 CN CN202320145817.2U patent/CN219375872U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |