CN219050100U - Infusion three-way valve with novel structure - Google Patents

Infusion three-way valve with novel structure Download PDF

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Publication number
CN219050100U
CN219050100U CN202222306628.7U CN202222306628U CN219050100U CN 219050100 U CN219050100 U CN 219050100U CN 202222306628 U CN202222306628 U CN 202222306628U CN 219050100 U CN219050100 U CN 219050100U
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China
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liquid medicine
valve core
valve
infusion
valve body
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CN202222306628.7U
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金雪芹
秦宏平
陈杨
张庆军
彭家启
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Jiangsu Suyun Medical Materials Co Ltd
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Jiangsu Suyun Medical Materials Co Ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract

The utility model relates to a novel structure of an infusion three-way valve, which comprises a valve core and a valve body with a cavity inside; the top of the valve body is provided with a valve core mounting hole, the valve body is provided with three liquid medicine ports, the bottom wall of the cavity of the valve body is provided with a cylinder with the axis collinear with the axis of the valve core mounting hole, and a liquid medicine circulation channel is formed between the outer peripheral surface of the cylinder and the inner wall of the cavity of the valve body; the upper end of the valve core is provided with a valve core angle control end, the lower end of the valve core is provided with a mounting end, the valve core mounting end is arranged in a hollow mode and sleeved on the column body, and three liquid medicine tanks are arranged on the peripheral surface of the valve core mounting end; a gap which is convenient for the liquid medicine to circulate between two adjacent liquid medicine tanks is reserved between the bottom surface of the valve core mounting end and the bottom wall of the valve body cavity; the infusion three-way valve is simple in structure, easy in accessory forming, high in production efficiency, small in influence on infusion flow rate, and large in space for accommodating liquid medicine inside, so that air is not easy to be entrained in the three-way valve.

Description

Infusion three-way valve with novel structure
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an infusion three-way valve with a novel structure.
Background
At present, the size of an inner cavity of a clinically used infusion tee joint is small, the influence on the infusion flow rate is obvious, the infusion time is prolonged, the structure of a valve core is complex, and the difficulty and the cost of die manufacturing are increased. Meanwhile, the fitting structure is complex, so that the difficulty in molding the fitting is also high, and the production efficiency is low; in addition, the air in the three-way is not easy to be discharged in the exhaust process of the transfusion three-way commonly used in clinic at present;
that is, the traditional three-way component for transfusion has complex size, low production efficiency and high difficulty, and the complex structure ensures that the internal space of the three-way component is smaller, and small bubble air is easy to be entrained in the transfusion process;
aiming at the problems, the infusion three-way valve is provided with a simple structure, so that the liquid medicine conveying space is as large as possible compared with the existing design, and the bubble air entrained in the infusion process is reduced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the infusion three-way valve which has a simple structure and fewer parts and ensures that the liquid medicine conveying space is as large as possible compared with the prior design, thereby reducing bubble air entrained in the infusion process.
The technical problem to be solved by the utility model is realized by the following technical scheme, namely an infusion three-way valve with a novel structure, which comprises a valve core and a valve body with a cavity inside;
the top of the valve body is provided with a valve core mounting hole, three liquid medicine ports are arranged on the valve body between the valve core mounting hole and the bottom of the valve body, a cylinder with the axis collinear with the axis of the valve core mounting hole is arranged on the bottom wall of the cavity of the valve body, and a liquid medicine circulation channel is formed between the outer peripheral surface of the cylinder and the inner wall of the cavity of the valve body;
the upper end of the valve core is set as a valve core angle control end, the lower end of the valve core is set as a mounting end extending into the valve core mounting hole, the valve core mounting end is arranged in a hollow way and sleeved on the column body to seal the liquid medicine port, and three liquid medicine tanks capable of conducting the liquid medicine port and the liquid medicine circulation channel when the valve core angle control end is rotated are arranged on the peripheral surface of the valve core mounting end;
a gap which is convenient for the liquid medicine to circulate between two adjacent liquid medicine tanks is reserved between the bottom surface of the valve core mounting end and the bottom wall of the valve body cavity.
The technical problem to be solved by the utility model can also be achieved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that an annular groove is formed in the outer peripheral surface of the valve core mounting end, an annular bulge which is used for limiting the valve core in a rotary fit mode with the annular groove is formed in the inner peripheral surface of the valve core mounting hole, and the axis of the annular bulge and the axis of the annular groove are collinear with the axis of the valve core mounting hole.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, namely the infusion three-way valve with the novel structure, wherein the three liquid medicine ports are distributed in a T-shaped structure.
The technical problem to be solved by the utility model can be further solved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that the three liquid medicine ports are all arranged on the periphery of the valve body between the bottom wall of the cavity of the valve body and the top surface of the cylinder.
The technical problem to be solved by the utility model can be solved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that the valve core angle control end is arranged in a disc-shaped structure, three rotary wings which are convenient for rotating the valve core angle control end are fixed on the outer peripheral surface of the valve core angle control end, each rotary wing faces one liquid medicine groove, and each rotary wing faces one liquid medicine opening when the liquid medicine openings are communicated with the liquid medicine circulation channels.
The technical problem to be solved by the utility model can be further solved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that the liquid medicine groove is of a U-shaped groove structure with a downward notch, and the U-shaped groove is communicated with the hollow part of the mounting end of the valve core.
The technical problem to be solved by the utility model can be further solved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that the gap between the bottom surface of the valve core mounting end and the bottom wall of the valve body cavity is 1.5-2.5 mm.
The technical problem to be solved by the utility model can be further solved by the technical scheme that the infusion three-way valve with the novel structure is characterized in that in the three liquid medicine ports, the axes of two liquid medicine ports are collinear, the axis of the other liquid medicine port is perpendicular to the axis of the two liquid medicine ports, a medicine inlet pipe is arranged at the inlet end of the liquid medicine port, and a cap is detachably arranged at the inlet end of the medicine inlet pipe.
The technical problem to be solved by the utility model can also be achieved by the following technical scheme, the infusion three-way valve with the novel structure is characterized in that the taper value of the medicine inlet pipe is 0.06.
Compared with the prior art, the utility model has the beneficial technical effects that:
(1) The infusion three-way valve has the advantages of simple structure, easy accessory forming, high production efficiency, small influence on infusion flow rate, and difficult entrainment of air in the three-way valve due to the large space for accommodating liquid medicine in the member;
(2) Three rotary wings which are convenient for rotating the valve core angle control end are fixed on the peripheral surface of the valve core angle control end, and only the rotary wings are needed to be held by hands and twisted when the on-off of the liquid medicine port is controlled, so that the operation is convenient;
(3) The medicine feeding pipe is provided with the cap for plugging the medicine feeding pipe at the inlet end of the medicine feeding pipe, when the medicine feeding pipe is not in transfusion, the medicine feeding pipe can be sealed through the cap, and after the cap is removed, the medicine feeding pipe can be perfectly matched and connected with an outer conical joint of a syringe and the like, so that the medicine feeding operation is achieved, and the practicability is strong.
Drawings
FIG. 1 is a schematic view of the present utility model in front view in full section;
FIG. 2 is a schematic top view of the present utility model;
fig. 3 is a schematic diagram of a front view structure of the valve core of the present utility model.
In the figure, 1, a valve body; 2. a medicine inlet; 3. a medicine outlet; 4. a column; 5. a liquid medicine flow channel; 6. a valve core angle control end; 7. a mounting end; 8. a liquid medicine tank; 9. an annular groove; 10. a rotary wing; 11. a medicine inlet pipe; 12. and (3) capping.
Detailed Description
Specific embodiments of the utility model will be further described below with reference to the accompanying drawings, in order to facilitate a further understanding of the utility model by those skilled in the art, without limiting the scope of the claims thereto.
1, referring to fig. 1 to 3, an infusion three-way valve of a novel structure comprises a valve core and a valve body 1 with a cavity inside;
the top of the valve body 1 is provided with a valve core mounting hole, three liquid medicine ports are arranged between the valve core mounting hole and the bottom of the valve body 1 on the valve body 1, specifically, the three liquid medicine ports can be provided with two liquid medicine inlet ports 2 and one liquid medicine outlet port 3 according to the use requirement, the two liquid medicine inlet ports 2 and the one liquid medicine outlet port 3 are distributed in a T-shaped structure, namely, the axes of the two liquid medicine inlet ports 2 and the one liquid medicine outlet port 3 have a collinear or vertical relationship, for example, the axis of one liquid medicine inlet port 2 coincides with the axis of the one liquid medicine outlet port 3, the axis of the other liquid medicine inlet port 2 is vertical to the axes of the liquid medicine outlet port 3 and the side liquid medicine inlet port 2, a liquid medicine circulation channel 5 is formed between the outer peripheral surface of the cylinder 4 and the inner wall of the cavity of the valve body 1, and the axial dimension of the cylinder 4 is larger than that of the top end of the liquid medicine port to the bottom wall of the cavity of the valve body 1;
the upper end of the valve core is provided with a valve core angle control end 6, the lower end of the valve core is provided with a mounting end 7 extending into a valve core mounting hole, the valve core mounting end 7 is arranged in a hollow mode and sleeved on the column 4 to seal a liquid medicine port, and three liquid medicine tanks 8 capable of conducting the liquid medicine port and the liquid medicine circulation channel 5 when the valve core angle control end 6 is rotated are arranged on the outer peripheral surface of the valve core mounting end 7;
a gap which is convenient for the liquid medicine to circulate between two adjacent liquid medicine tanks 8 is reserved between the bottom surface of the valve core mounting end 7 and the bottom wall of the cavity of the valve body 1.
In embodiment 1, three liquid medicine tanks 8 are also distributed on the outer peripheral surface of the valve core mounting end 7 in a T-shaped structure, and the minimum included angle between two adjacent liquid medicine tanks 8 is set to 90 degrees, that is, when two liquid medicine ports are required to be conducted mutually, only the valve core angle control end needs to be rotated by 90 degrees or 180 degrees;
it should be noted that the size of the liquid medicine port can be designed to be larger than the opening size of a conventional infusion tee, and the specific size can be selected according to the use requirement.
Embodiment 2, embodiment 1 a novel infusion three-way valve of structure is provided with annular groove 9 on the outer peripheral face of case installation end 7, be provided with on the case mounting hole inner peripheral face with annular groove 9 rotatory cooperation use with this spacing annular bulge of case, the axis of annular bulge, the axis of annular groove 9 is all collineation with the axis of case mounting hole, annular groove 9 and bellied concrete dimension specification of annular can select by oneself according to the user demand, its design purpose only is so that case installation end 7 and case mounting hole can mutual rotatory cooperation, specifically, can be provided with O type sealing washer between annular bulge and annular groove 9 in order to carry out rotary seal between these two.
In example 3, the three liquid medicine ports of the infusion three-way valve with the novel structure described in example 1 are distributed in a T-shaped structure, that is, the minimum included angle between two adjacent liquid medicine ports between the three liquid medicine ports is 90 ° and the maximum included angle between the two adjacent liquid medicine ports is 180 °.
In embodiment 4, in the infusion three-way valve with the novel structure described in embodiment 1, the three liquid medicine ports are all located on the outer peripheral surface of the valve body 1 between the bottom wall of the cavity of the valve body 1 and the top surface of the cylinder 4, that is, the height of the cylinder 4 is higher than the top ends of the three liquid medicine ports.
In embodiment 4, the height of the cylinder 4 is higher than the three liquid medicine ports, and the height of the cylinder 4 should be higher than the peak of the liquid medicine tank 8, i.e. the highest position, so that the liquid medicine does not overflow into the cavity of the valve body 1 above the cylinder 4 when the liquid medicine ports and the liquid medicine flow channel 5 are conducted.
Embodiment 5, embodiment 1 a novel transfusion three-way valve of structure, case angle control end 6 be discoid structure setting, be fixed with three rotatory wing 10 of being convenient for rotate case angle control end 6 on the outer peripheral face of case angle control end 6, the shape and size of rotatory wing 10 can select by oneself, for example oval according to the user demand, every rotatory wing 10 all face a liquid medicine groove 8, every rotatory wing 10 all faces a liquid medicine mouth when liquid medicine mouth and liquid medicine circulation channel 5 all communicate.
In embodiment 5, each of the rotary wings 10 faces one liquid medicine tank 8, and when the liquid medicine port and the liquid medicine circulation channel 5 are all conducted, each rotary wing 10 faces one liquid medicine port, the design aims at enabling each rotary wing to rotate 90 ° so that one rotary wing 10 can rotate to the initial direction of the other rotary wing 10, and therefore one liquid medicine tank 8 can be blocked by the inner wall of the cavity of the valve body 1 to be in a closed state, and the other two liquid medicine tanks 8 are communicated with the liquid medicine circulation channel 5 and the two corresponding liquid medicine ports, so that liquid medicine is conveyed.
In embodiment 6, the three-way valve for infusion with the novel structure described in embodiment 1, wherein the liquid medicine tank 8 is formed into a U-shaped tank structure with a downward notch, and the U-shaped tank is communicated with the hollow part of the valve core mounting end 7.
In embodiment 6, the liquid medicine tank 8 adopts a U-shaped tank structure, the upper part of the U-shaped tank is level with the top end of the liquid medicine port, that is, when the liquid medicine port supplies liquid to the upper part of the U-shaped tank, the liquid medicine naturally flows to the lower part of the U-shaped tank through the upper part of the U-shaped tank, flows to the liquid medicine circulation channel 5 through the lower part of the U-shaped tank, flows upwards through the lower part of the U-shaped tank, and finally flows to the other liquid medicine port through the upper part of the U-shaped tank;
the size of the U-shaped groove can be larger than the inner diameter of a pipeline of a conventional infusion tee joint, and the specific size of the U-shaped groove can be selected according to the use requirement.
Embodiment 7, embodiment 1 a novel structure's infusion three-way valve, the clearance between the bottom surface of case installation end 7 and valve body 1 cavity diapire be 1.5mm-2.5mm, its concrete value can be selected by oneself according to the user demand, its design aim at makes the case be convenient for the liquid medicine circulate when installing in valve body 1, and the bottom surface of case installation end 7 can not totally block up liquid medicine circulation channel 5 this moment.
In the three liquid medicine ports of the infusion three-way valve with the novel structure described in embodiment 8, the axes of the two liquid medicine ports are collinear, the axis of the other liquid medicine port is perpendicular to the axes of the two liquid medicine ports, the inlet end of the liquid medicine port is provided with the medicine inlet pipe 11, the size of the medicine inlet pipe 11 is selected according to the use requirement, the inlet end of the medicine inlet pipe 11 is detachably provided with the cap 12, the cap 12 can be a round cap with internal threads, meanwhile, the peripheral surface of the inlet end of the medicine inlet pipe 11 can also be provided with external threads matched with the internal threads, in particular, the connection mode between the medicine inlet pipe 11 and the cap 12 is not limited to threaded connection, and the connection mode can also be carried out in other modes and is not limited to the threaded connection mode;
the cap 12 is designed to be capable of perfectly matching and connecting the drug inlet tube 11 with a standard outer conical joint such as a syringe after removing the cap 12, thereby achieving drug delivery operation.
Embodiment 9, embodiment 8 of a novel structure of infusion three-way valve, the taper value of the drug feeding tube 11 is 0.06, and the taper value can be selected according to the use requirement, and is not limited to 0.06.
When the infusion three-way valve with the novel structure is used:
firstly, assembling a valve body 1 and a valve core, connecting two liquid medicine ports with collinear axes with an external infusion pipeline through a hose, taking down a cap 12, connecting a standard external conical joint such as an injector with a medicine inlet pipe 11, and then infusing;
when all the infusion passages are required to be completely opened, only each rotary wing 10 on the angle control end 6 of the rotary valve core is required to be aligned to one liquid medicine port;
when the medicine is not needed to be added through the medicine liquid port at the medicine inlet pipe 11, the cover cap 12 is used for plugging the medicine inlet pipe 11 or directly twisting the angle control end of the rotary valve core by 180 degrees, so that the other two medicine liquid ports can be conducted and the medicine liquid is conveyed, and the medicine feeding device is reasonable in structural design, convenient to use and not easy to damage.

Claims (9)

1. An infusion three-way valve with a novel structure is characterized in that: comprises a valve core and a valve body with a cavity inside;
the top of the valve body is provided with a valve core mounting hole, three liquid medicine ports are arranged on the valve body between the valve core mounting hole and the bottom of the valve body, a cylinder with the axis collinear with the axis of the valve core mounting hole is arranged on the bottom wall of the cavity of the valve body, and a liquid medicine circulation channel is formed between the outer peripheral surface of the cylinder and the inner wall of the cavity of the valve body;
the upper end of the valve core is set as a valve core angle control end, the lower end of the valve core is set as a mounting end extending into the valve core mounting hole, the valve core mounting end is arranged in a hollow way and sleeved on the column body to seal the liquid medicine port, and three liquid medicine tanks capable of conducting the liquid medicine port and the liquid medicine circulation channel when the valve core angle control end is rotated are arranged on the peripheral surface of the valve core mounting end;
a gap which is convenient for the liquid medicine to circulate between two adjacent liquid medicine tanks is reserved between the bottom surface of the valve core mounting end and the bottom wall of the valve body cavity.
2. The infusion three-way valve with a novel structure according to claim 1, wherein: an annular groove is formed in the outer peripheral surface of the valve core mounting end, an annular protrusion which is used for limiting the valve core in a rotary fit mode with the annular groove is formed in the inner peripheral surface of the valve core mounting hole, and the axis of the annular protrusion and the axis of the annular groove are collinear with the axis of the valve core mounting hole.
3. The infusion three-way valve with a novel structure according to claim 1, wherein: the three liquid medicine ports are distributed in a T-shaped structure.
4. The infusion three-way valve with a novel structure according to claim 1, wherein: the three liquid medicine ports are all positioned on the peripheral surface of the valve body between the bottom wall of the cavity of the valve body and the top surface of the cylinder.
5. The infusion three-way valve with a novel structure according to claim 1, wherein: the valve core angle control end is arranged in a disc-shaped structure, three rotary wings which are convenient for rotating the valve core angle control end are fixed on the peripheral surface of the valve core angle control end, each rotary wing faces one liquid medicine groove, and each rotary wing faces one liquid medicine opening when the liquid medicine opening and the liquid medicine circulation channel are all communicated.
6. The infusion three-way valve with a novel structure according to claim 1, wherein: the liquid medicine groove is formed into a U-shaped groove structure with a downward notch, and the U-shaped groove is communicated with the hollow part of the mounting end of the valve core.
7. The infusion three-way valve with a novel structure according to claim 1, wherein: the clearance between the bottom surface of the valve core mounting end and the bottom wall of the valve body cavity is 1.5mm-2.5mm.
8. The infusion three-way valve with a novel structure according to claim 1, wherein: and among the three liquid medicine ports, the axes of the two liquid medicine ports are collinear, the axis of the other liquid medicine port is vertical to the axes of the two liquid medicine ports, a medicine inlet pipe is arranged at the inlet end of the liquid medicine port, and a cap is detachably arranged at the inlet end of the medicine inlet pipe.
9. The infusion three-way valve with a novel structure according to claim 8, wherein: the taper value of the medicine inlet pipe is 0.06.
CN202222306628.7U 2022-08-30 2022-08-30 Infusion three-way valve with novel structure Active CN219050100U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222306628.7U CN219050100U (en) 2022-08-30 2022-08-30 Infusion three-way valve with novel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222306628.7U CN219050100U (en) 2022-08-30 2022-08-30 Infusion three-way valve with novel structure

Publications (1)

Publication Number Publication Date
CN219050100U true CN219050100U (en) 2023-05-23

Family

ID=86345688

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222306628.7U Active CN219050100U (en) 2022-08-30 2022-08-30 Infusion three-way valve with novel structure

Country Status (1)

Country Link
CN (1) CN219050100U (en)

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