CN210277873U - Infusion device - Google Patents

Infusion device Download PDF

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Publication number
CN210277873U
CN210277873U CN201920537269.1U CN201920537269U CN210277873U CN 210277873 U CN210277873 U CN 210277873U CN 201920537269 U CN201920537269 U CN 201920537269U CN 210277873 U CN210277873 U CN 210277873U
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Prior art keywords
valve
liquid
dropping funnel
section
sealing
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CN201920537269.1U
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Chinese (zh)
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张亚秋
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Changchun Yijian Technology Co ltd
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Changchun Yijian Technology Co ltd
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Abstract

The utility model discloses an infusion device, belonging to the technical field of medical apparatus and instruments, which is used for solving the technical problem that the blood return or the air inlet of an infusion tube is caused because the liquid medicine in an infusion bottle is not found in time after being infused; the utility model arranges a dropping funnel in the middle of the transfusion tube, the upper end of the dropping funnel is provided with a dropping liquid port, and the lower end is provided with a liquid outlet; the flow stopping valve is arranged inside the dropping funnel and can be suspended in the liquid medicine in the dropping funnel; the lower part of the check valve is provided with a sealing body for blocking the liquid outlet; a cavity is formed inside the flow stopping valve and used for storing gas; a liquid storage tank for storing liquid medicine discharged from the liquid dropping port is formed at the upper part of the check valve and is used for applying pressure to the sealing body; open valve ware, its formation is in one side of leakage fluid dram, and open valve ware passes through ejector pin drive stop valve and keeps away from the leakage fluid dram, the utility model discloses have the liquid medicine that reduces in the infusion bottle and beat and cause the risk that blood return or transfer line admit air did not suitable that arouse, the safety in utilization is high, simple structure's beneficial effect.

Description

Infusion device
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to an infusion set.
Background
At present, when the medical liquid is infused in hospitals, outpatients and the like, in order to prevent blood return caused by the fact that the liquid medicine in an infusion bottle is filled out or the infusion tube is inflated to cause discomfort to patients, medical staff, patients and family members need to observe the infusion progress, however, the general infusion time is long, the patients need to often observe the liquid level of the liquid medicine and timely remind the medical staff to finish infusion or replace the infusion bag, the patient is not comfortable because the patient is not found to be filled out in time, the family members and the patients of nursing patients are easy to be nervous, particularly, the patients or guardians are easy to sleep at night, the phenomenon that the liquid medicine is not found out in time is easy to happen after being filled out, the patients are not good for the condition of the illness for a long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect that prior art exists, provide an infusion set, can in time seal transfer line drip chamber leakage fluid dram after the infusion finishes, prevent air admission transfer line and the emergence of blood return phenomenon, improve the infusion security, reduce the liquid medicine in the infusion bottle and have beaten the unsuitable risk that causes blood return or transfer line air admission to arouse.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses an infusion device, include:
a dropping funnel is distributed at the middle part of the transfusion tube, a liquid dropping port is arranged at the arc section at the upper end of the dropping funnel, and a liquid discharging port is arranged at the arc section at the lower end of the dropping funnel;
the flow stopping valve is arranged in the dropping funnel and can be suspended in the liquid medicine in the dropping funnel;
a sealing body which is contacted with the arc section at the lower end of the dropping funnel is distributed at the lower part of the check valve and is used for blocking the liquid outlet;
a cavity is formed inside the check valve and used for storing gas;
a liquid storage tank for containing liquid medicine discharged from the liquid dropping port is formed at the upper part of the check valve and is used for applying pressure to the sealing body;
and the valve opener is formed on one side of the liquid discharge port and drives the check valve to be far away from the liquid discharge port through a mandril.
Further, the check valve comprises a guide section and a sealing section which is in contact with the ejector rod;
the guide section is of a cylindrical structure, the outer wall of the guide section is in clearance fit with the inner wall of the dropping funnel, the liquid storage tank is arranged at the top end of the guide section, and the sealing section is formed at the bottom end of the guide section;
the cavity is communicated with the interior of the guide section and the interior of the sealing section;
the outer wall of the sealing section is embedded with the sealing body, and the sealing section is positioned at the upper part or the lower part of the sealing body and is contacted with the ejector rod.
Furthermore, a plurality of rolling bodies are circumferentially distributed on the outer wall of the guide section and are used for being in rolling contact with the inner wall of the dropping funnel.
Further, the valve opener comprises a valve opener channel formed on the arc section at the lower end of the dropping funnel and a valve opener main body fixedly connected to the inner wall of the valve opener channel;
the valve opener main part is equipped with the piston, the piston passes through push rod drive its edge valve opener main part inner wall reciprocating sliding, the piston is kept away from the push rod side is linked firmly the ejector pin.
Further, an included angle between the valve opener channel and the vertical axis of the liquid discharge port is 30-90 degrees.
Furthermore, limit rings are formed at two ends of the inner wall of the valve opener main body and used for blocking the piston from sliding out of the valve opener main body.
Further, the liquid dropping port and the liquid discharging port are on the same vertical axis.
Further, the liquid storage tank is of an arc or rectangular structure.
Furthermore, the sealing section is a half sphere, the sealing body is embedded in the outer surface of the sphere, or the sealing section is a cone structure, and the sealing body is embedded in the outer conical surface of the cone.
Further, in the above-mentioned case,
the sealing body is set to be an O-shaped rubber sealing ring, or the sealing body is set to be a sealing ring with a circular structure.
In the technical scheme, the utility model provides a pair of infusion set, beneficial effect:
1. the utility model discloses a dropping funnel, be provided with the check valve in the dropping funnel, the dropping funnel is located the check valve below and still is provided with the valve opener, through the check valve, after the infusion finishes, the liquid medicine liquid level in the dropping funnel constantly descends, the check valve is close the leakage fluid dram gradually, and the closing cap is in the leakage fluid dram top, it is internal to realize preventing the air injection patient, perhaps blood return phenomenon takes place, influence the patient health, in addition, through the valve opener, after the check valve prevents the liquid medicine to flow, before pulling out the needle, medical personnel keep away from the leakage fluid dram through the ejector pin drive check valve that promotes the valve opener, can pull out the needle after the liquid medicine fully input of leaving the leakage fluid dram lower extreme is accomplished, avoid the liquid medicine extravagant.
2. The utility model discloses a stop valve, the inside die cavity of having laid of stop valve, the stop valve top sets up the reservoir, stores gas through the die cavity, and increase stop valve buoyancy when realizing alleviateing the dead weight of stop valve through the reservoir, and the realization can increase stop valve weight after the stop valve ends and flows, improves the seal and the drip chamber contact pressure of stop valve, improves the sealing performance of seal.
3. The utility model discloses a stop flow valve, the rolling element has been laid to stop flow valve's direction section, through rolling element and drip chamber inner wall rolling contact, realizes reducing the frictional force between direction section and the drip chamber inner wall, makes things convenient for the ejector pin to promote stop flow valve and keeps away from the leakage fluid dram.
4. The utility model discloses a valve opener, valve opener include valve opener passageway, valve opener main part, piston, and piston one end has linked firmly the push rod, and the other end has linked firmly the ejector pin, through push rod drive piston along valve opener main part inner wall reciprocating sliding, make the ejector pin stretch out inside valve opener passageway opens the flow stopping valve or withdraws valve opener main part, easy operation, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of an infusion device disclosed by the present invention;
FIG. 2 is a cross-sectional view of a drip chamber of an infusion set in accordance with the present disclosure;
FIG. 3 is a schematic view of a stop valve of an infusion set according to the present invention;
fig. 4 is a schematic structural view of a valve opener of an infusion device disclosed by the utility model.
Description of reference numerals:
a dropping funnel 11; a drip port 12; a liquid discharge port 13; a check valve 20; a seal body 21; a guide section 22; a sealing section 23; a mold cavity 24; a liquid storage tank 25; rolling bodies 26; a valve opener 30; a valve opener passage 31; a valve opener main body 32; a retainer ring 33; a piston 34; a push rod 35; a carrier rod 36.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1, 2;
the utility model relates to an infusion device, include:
a drip chamber 11 is arranged in the middle of the transfusion tube, a liquid dropping port 12 is arranged at the arc section at the upper end of the drip chamber 11, and a liquid discharging port 13 is arranged at the arc section at the lower end;
a flow stop valve 20 which is provided inside the dropping funnel 11 and can be suspended in the liquid medicine in the dropping funnel 11;
the lower part of the check valve 20 is provided with a sealing body 21 which is contacted with the arc section at the lower end of the dropping funnel 11 and is used for blocking the liquid outlet 13;
a cavity 24 is formed inside the check valve 20 and used for storing gas;
a liquid storage tank 25 for storing the liquid medicine discharged from the liquid dropping port 12 is formed at the upper part of the check valve 20 and is used for applying pressure to the sealing body 21;
and a valve opener 30 formed on one side of the liquid discharge port 13, the valve opener 30 driving the check valve 20 away from the liquid discharge port 13 through a stem 36.
Specifically, in this embodiment, as shown in fig. 1, a general infusion tube in the prior art can be used as the infusion tube, one end of the infusion tube is communicated with an infusion bottle or an infusion bag, the other end of the infusion tube passes through an infusion needle, an air inlet pipeline and a throttle valve are sequentially arranged at the end of the infusion tube close to the infusion bottle, a dropping funnel 11 is arranged in the middle of the infusion tube, the dropping funnel 11 comprises a liquid drop port 12 and a liquid discharge port 13, a check valve 20 is arranged inside the dropping funnel 11, a valve opener 30 is arranged at the end of the liquid discharge port 13 of the dropping funnel 11, as shown in fig. 2, the valve opener 30 drives the check valve 20 to be away from the liquid discharge port 13 through a push rod 36 during infusion, the check valve 20 is separated from the valve opener 30 and floats on the lower portion of the liquid level as the liquid level of the liquid medicine in the dropping funnel 11 rises continuously, after normal infusion, the push rod 36 of the valve opener, until the sealing body 21 at the lower end of the check valve 20 contacts with the arc section at the lower end of the dropping funnel 11, the sealing body 21 is tightly adhered to the inner wall of the dropping funnel 11 by the self weight and the weight of the liquid medicine in the liquid storage tank 25 at the top end of the check valve 20, the liquid medicine at the lower end of the dropping funnel 11 stops flowing, the transfusion is finished, the air is prevented from being injected into the body of a patient, or the blood return phenomenon occurs, the health of the patient is influenced, and the risk of blood return or the improper combination caused by the air inlet of a transfusion tube due to the completion of the transfusion of the liquid medicine in a transfusion bottle is reduced, in addition, before the needle is pulled out, medical personnel can pull out the needle after the liquid medicine at the lower end of the liquid discharge port 13 is fully input by pushing the ejector rod 36 of the valve opening device 30 to drive the check valve 20 to be away from the liquid discharge port 13, so as to, the reservoir 25 can increase the weight of the check valve 20 after the sealing body 21 contacts the dropping funnel 11, increase the pressure and improve the sealing performance of the sealing body 21.
See fig. 2 and 3;
in another embodiment, 2 is preferable, the check valve 20 comprises a guide section 22 and a sealing section 23 in contact with the carrier rod 36;
the guide section 22 is of a cylindrical structure, the outer wall of the guide section 22 is in clearance fit with the inner wall of the dropping funnel 11, a liquid storage tank 25 is arranged at the top end of the guide section 22, a sealing section 23 is formed at the bottom end of the guide section 22, and a cavity 24 is communicated between the guide section 22 and the sealing section 23;
the sealing body 21 is embedded on the outer wall of the sealing section 23, and the sealing section 23 is positioned at the upper part or the lower part of the sealing body 21 and is contacted with the ejector rod 36.
8 preferably, the reservoir 25 is of arcuate or rectangular configuration.
Specifically, in this embodiment, as shown in fig. 2, the guide section 22 of the check valve 20 is a cylindrical structure, the sealing section 23 is formed at the bottom end of the guide section 22, the sealing body 21 is embedded on the outer wall of the sealing section 23, the guide section 22 is in clearance fit with the inner wall of the dropping funnel 11, and the guide section 22 is set to be a cylinder and can only slide up and down along the inner wall of the dropping funnel 11, so that the check valve 20 is effectively prevented from freely turning over inside the dropping funnel 11 under the influence of external force, 9 is preferred, the sealing section 23 is set to be a half sphere, the sealing body 21 is embedded on the outer surface of the sphere, or the sealing section 23 is set to be a cone structure, and the sealing. 10 preferably, the sealing body 21 is provided as an O-ring or the sealing body 21 is provided as a ring of circular configuration. The sealing section 23 is arranged to be in a spherical or conical structure and matched with the arc section at the lower end of the dropping funnel 11, so that the weight of the check valve 22 completely acts on the sealing body 21, the sealing performance of the sealing body 21 is improved, in addition, the spherical surface or the conical surface of the sealing section 23 is in contact with the ejector rod 36, the ejector rod 36 is favorable for pushing the check valve 20 to the oblique upper side, the horizontal stress of the check valve 20 is avoided, and the friction force between the guide section 22 and the inner wall of the dropping funnel 11 is reduced.
See fig. 2, 4;
in another embodiment, 4 is preferred, the valve opener 30 comprises a valve opener channel 31 formed on the circular arc section of the lower end of the dropping funnel 11 and a valve opener main body 32 fixedly connected to the inner wall of the valve opener channel 31;
the valve opener main body 32 is provided with a piston 34, the piston 34 is driven by a push rod 35 to slide along the inner wall of the valve opener main body 32 in a reciprocating mode, and a push rod 36 is fixedly connected to the side, far away from the push rod 35, of the piston 34.
5 preferably, the valve opener passage 31 is angled from 30 to 90 from the vertical axis of the liquid discharge port 13.
Specifically, in this embodiment, referring to fig. 2, a valve opener 30 is disposed at an arc section of the lower end of the dropping funnel 11, the valve opener 30 includes a valve opener channel 31, a valve opener main body 32, and a piston 34, one end of the piston 34 is fixedly connected to a push rod 35, the other end of the piston 34 is fixedly connected to a push rod 36, the piston 34 is in close contact with an inner wall of the valve opener column 32, the piston 34 can be in sealing fit with the valve opener column 32 by using a piston for a hand-push type syringe in the prior art, the piston 34 is driven by the push rod 35 to slide back and forth along the inner wall of the valve opener main body 32, and the push rod 36 extends out of the valve opener channel 31 or retracts, when an included angle between the valve opener channel 31 of the valve opener 30 and a vertical axis of the liquid discharge port 13 is 30 °, a horizontal component force generated between the push rod 36 and the check valve 20 is small, a vertical component force is large, and the.
As shown in fig. 1;
in another embodiment 3, it is preferable that the outer wall of the guiding section 22 is provided with rolling elements 26 for rolling contact with the inner wall of the dropping funnel 11.
Specifically, in this embodiment, the plurality of rolling elements 26 are circumferentially distributed on the outer wall of the guide section 22 and are in rolling contact with the inner wall of the dropping funnel 11, so that the friction between the guide section 22 and the inner wall of the dropping funnel 11 is further reduced, and the push rod 36 is convenient to push the check valve 20 away from the liquid discharge port 13.
As shown in fig. 4;
in another embodiment 6, it is preferable that the valve opener body 32 is formed with a retainer ring 33 at both ends of the inner wall thereof for blocking the piston 34 from sliding out of the valve opener body 32.
Specifically, in the embodiment, the limiting ring 33 is arranged on the inner wall of the valve opener main body 32, so that the risk that the piston 34 slides out of the valve opener main body 32 is reduced, and the use safety of the valve opener main body is improved.
As shown in fig. 2;
in another embodiment, 7, it is preferable that the drip port 12 and the liquid discharge port 13 are on the same vertical axis.
Specifically, in this embodiment, the dropping funnel 11 is ensured to be in a vertical state by arranging the dropping port 12 and the liquid discharge port 13 on the same vertical axis, and the stop valve 20 is ensured to be vertically covered above the liquid discharge port 13, so that the sealing performance is improved.
In the technical scheme, the utility model provides a pair of infusion set, beneficial effect:
1. the utility model discloses a dropping funnel, be provided with the check valve in the dropping funnel, the dropping funnel is located the check valve below and still is provided with the valve opener, through the check valve, after the infusion finishes, the liquid medicine liquid level in the dropping funnel constantly descends, the check valve is close the leakage fluid dram gradually, and the closing cap is in the leakage fluid dram top, it is internal to realize preventing the air injection patient, perhaps blood return phenomenon takes place, influence the patient health, in addition, through the valve opener, after the check valve prevents the liquid medicine to flow, before pulling out the needle, medical personnel keep away from the leakage fluid dram through the ejector pin drive check valve that promotes the valve opener, can pull out the needle after the liquid medicine fully input of leaving the leakage fluid dram lower extreme is accomplished, avoid the liquid medicine extravagant.
2. The utility model discloses a stop valve, the inside die cavity of having laid of stop valve, the stop valve top sets up the reservoir, stores gas through the die cavity, and increase stop valve buoyancy when realizing alleviateing the dead weight of stop valve through the reservoir, and the realization can increase stop valve weight after the stop valve ends and flows, improves the seal and the drip chamber contact pressure of stop valve, improves the sealing performance of seal.
3. The utility model discloses a stop flow valve, the rolling element has been laid to stop flow valve's direction section, through rolling element and drip chamber inner wall rolling contact, realizes reducing the frictional force between direction section and the drip chamber inner wall, makes things convenient for the ejector pin to promote stop flow valve and keeps away from the leakage fluid dram.
4. The utility model discloses a valve opener, valve opener include valve opener passageway, valve opener main part, piston, and piston one end has linked firmly the push rod, and the other end has linked firmly the ejector pin, through push rod drive piston along valve opener main part inner wall reciprocating sliding, make the ejector pin stretch out inside valve opener passageway opens the flow stopping valve or withdraws valve opener main part, easy operation, convenient to use.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. An infusion device, comprising:
a dropping funnel (11) is arranged in the middle of the transfusion tube, a liquid dropping port (12) is formed in the arc section at the upper end of the dropping funnel (11), and a liquid discharging port (13) is formed in the arc section at the lower end of the dropping funnel (11);
a flow stop valve (20) which is arranged inside the dropping funnel (11) and can be suspended in the liquid medicine in the dropping funnel (11);
a sealing body (21) which is in contact with the arc section at the lower end of the dropping funnel (11) is arranged at the lower part of the check valve (20) and is used for blocking the liquid outlet (13);
a cavity (24) is formed inside the check valve (20) and used for storing gas;
a liquid storage tank (25) for storing the liquid medicine discharged from the liquid dropping port (12) is formed at the upper part of the check valve (20) and is used for applying pressure to the sealing body (21);
and the valve opener (30) is formed on one side of the liquid discharge port (13), and the valve opener (30) drives the check valve (20) to be far away from the liquid discharge port (13) through a mandril (36).
2. An infusion device as claimed in claim 1, wherein;
the check valve (20) comprises a guide section (22) and a sealing section (23) contacted with the ejector rod (36);
the guide section (22) is of a cylindrical structure, the outer wall of the guide section (22) is in clearance fit with the inner wall of the dropping funnel (11), the liquid storage tank (25) is arranged at the top end of the guide section (22), and the sealing section (23) is formed at the bottom end of the guide section (22);
the cavity (24) is communicated with the interior of the guide section (22) and the interior of the sealing section (23);
the sealing body (21) is embedded on the outer wall of the sealing section (23), and the sealing section (23) is positioned at the upper part or the lower part of the sealing body (21) and is in contact with the ejector rod (36).
3. An infusion device as claimed in claim 2, wherein;
a plurality of rolling bodies (26) are circumferentially distributed on the outer wall of the guide section (22) and are in rolling contact with the inner wall of the dropping funnel (11).
4. An infusion device as claimed in claim 1, wherein;
the valve opener (30) comprises a valve opener channel (31) formed on the arc section of the lower end of the dropping funnel (11) and a valve opener main body (32) fixedly connected to the inner wall of the valve opener channel (31);
open valve ware main part (32) and be equipped with piston (34), piston (34) pass through push rod (35) drive its edge open valve ware main part (32) inner wall reciprocating sliding, piston (34) are kept away from push rod (35) side has linked firmly ejector pin (36).
5. An infusion device as claimed in claim 4, wherein;
the included angle between the valve opener channel (31) and the vertical axis of the liquid outlet (13) is 30-90 degrees.
6. An infusion device as claimed in claim 4, wherein;
and two ends of the inner wall of the valve opener main body (32) are both formed with limit rings (33) for blocking the piston (34) from sliding out of the valve opener main body (32).
7. An infusion device as claimed in claim 1, wherein;
the liquid dropping port (12) and the liquid discharging port (13) are on the same vertical axis.
8. An infusion device as claimed in claim 1, wherein;
the liquid storage tank (25) is of an arc or rectangular structure.
9. An infusion device as claimed in claim 2, wherein;
the sealing section (23) is a half sphere, the sealing body (21) is embedded in the outer surface of the sphere, or the sealing section (23) is a cone structure, and the sealing body (21) is embedded in the outer conical surface of the cone.
10. An infusion device as claimed in any one of claims 1 to 8, wherein;
the sealing body (21) is arranged to be an O-shaped rubber sealing ring, or the sealing body (21) is arranged to be a sealing ring with a circular structure.
CN201920537269.1U 2019-04-19 2019-04-19 Infusion device Active CN210277873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920537269.1U CN210277873U (en) 2019-04-19 2019-04-19 Infusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920537269.1U CN210277873U (en) 2019-04-19 2019-04-19 Infusion device

Publications (1)

Publication Number Publication Date
CN210277873U true CN210277873U (en) 2020-04-10

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Application Number Title Priority Date Filing Date
CN201920537269.1U Active CN210277873U (en) 2019-04-19 2019-04-19 Infusion device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109908427A (en) * 2019-04-19 2019-06-21 长春市亿健科技有限公司 A kind of infusion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109908427A (en) * 2019-04-19 2019-06-21 长春市亿健科技有限公司 A kind of infusion device

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