CN218529411U

CN218529411U - Blood purification device with flow measurement function

Info

Publication number: CN218529411U
Application number: CN202221070703.8U
Authority: CN
Inventors: 韩伟; 王洪颖; 关天俊; 林完; 陈俊明; 丁玲英
Original assignee: Zhongshan Hospital Xiamen University
Current assignee: Zhongshan Hospital Xiamen University
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2023-02-28
Anticipated expiration: 2032-05-07

Abstract

The utility model is suitable for the technical field of medical equipment, and provides a blood purification device with flow measurement, which comprises a purification component, wherein an ultrafilter used for filtering blood is arranged, the ultrafilter is connected with a venous tube and an arterial tube, and the venous tube is sequentially provided with a venous flow meter, a venous pot, a venous switch and a venous connecting end; the arterial tube is connected with the ultrafilter through an arterial interface; the arterial tube is sequentially provided with an arterial kettle, an arterial flowmeter, a pump tube, an arterial switch and an arterial connecting end; thereby can detect flow information respectively through vein flowmeter and artery flowmeter to the equipment cost that this application adopted is not high relatively, facilitates the use, has improved treatment effeciency.

Description

Blood purification device with flow measurement function

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a blood purification device who possesses flow measurement.

Background

At present, most of patients with heart failure and edema in clinic are treated by adopting medicament, the effect is not obvious or continuous blood filtration equipment is adopted for treatment. The medicine has a poor treatment effect, and particularly has a poor emergency treatment effect on heart failure patients.

There is thus a need for a filtering device for blood purification that provides the patient with the need for blood purification. The prior continuous blood purification equipment with high cost is not beneficial to popularization and use and is not beneficial to saving cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blood purification device with flow measurement, which aims to solve the problems existing in the prior art.

The utility model discloses a realize like this, a blood purification device who possesses flow measurement, include:

a purification assembly comprising an ultrafilter, a venous tube and an arterial tube;

the venous tube is connected to the ultrafilter through a venous port; the venous tube is sequentially provided with a venous flowmeter, a venous pot, a venous switch and a venous connecting end; the venous flow meter is used for detecting blood flow information flowing through the venous pipe;

the arterial tube is connected to the ultrafilter through an arterial interface; the arterial tube is sequentially provided with an arterial kettle, an arterial flowmeter, a pump tube, an arterial switch and an arterial connecting end; the arterial flow meter is used for detecting blood flow information flowing through the arterial tube.

Preferably, a heating assembly is also included, which comprises:

the first spiral pipe is sleeved on the outer side of the venous pipe;

a second spiral tube sleeved on the outer side of the arterial tube;

and heating media are filled in the first spiral pipe and the second spiral pipe.

Preferably, one end of the first spiral pipe is connected with one end of the second spiral pipe through a first infusion pipe; a first heating sleeve is sleeved on the outer side of the first spiral pipe;

the other end of the spiral tube II is connected with the other end of the spiral tube II through a liquid conveying tube II; a second heating sleeve is sleeved on the outer side of the second spiral pipe; and the second spiral pipe is connected with a water pump for driving the heating medium to flow.

Preferably, a temperature sensor for detecting the temperature of blood in the venous tube is mounted on the venous tube.

Preferably, the outer side of the first spiral pipe is covered with a venous pipe cover; the cover wall of the intravenous tube cover is provided with a through hole for the intravenous tube to pass through.

Preferably, an arterial tube cover is covered on the outer side of the second spiral tube; the wall of the arterial tube cover is provided with a through hole for the venous tube to pass through.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a blood purification device with flow measurement, which is provided with an ultrafilter for filtering blood, wherein the ultrafilter is connected with a venous tube and an arterial tube, and the venous tube is sequentially provided with a venous flowmeter, a venous pot, a venous switch and a venous connecting end; the arterial tube is connected with the ultrafilter through an arterial interface; the arterial tube is sequentially provided with an arterial kettle, an arterial flowmeter, a pump tube, an arterial switch and an arterial connecting end; thereby can detect flow information respectively through vein flowmeter and artery flowmeter to the equipment cost that this application adopted is not high relatively, facilitates the use, has improved treatment effeciency.

Drawings

Fig. 1 is a schematic view of the overall structure of a blood purification device with flow measurement according to the present invention;

fig. 2 is a schematic structural view of the heating assembly of the present invention;

fig. 3 is a schematic structural diagram of the purification assembly of the present invention.

In the figure: 1. a purification assembly; 11. an ultrafilter; 12. an intravenous tube; 121. a venous access; 122. a venous flow meter; 123. a venous pot; 124. a venous switch; 125. a venous connection end; 126. a temperature sensor; 13. an arterial vessel; 131. an arterial interface; 132. the arteria cruris; 133. an arterial flow meter; 134. an arterial switch; 135. an arterial connection end; 136. a pump tube; 2. a heating assembly; 21. a venous tube cover; 22. an arterial tube cover; 23. a first spiral pipe; 24. a second spiral pipe; 25. a first infusion tube; 26. a second infusion tube; 27. a first heating sleeve; 28. a second heating sleeve; 29. and (4) a water pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1-3, the present invention provides a technical solution: a blood purification device with flow measurement comprises a purification component 1 and a heating component 2.

The purification assembly 1 comprises an ultrafilter 11, a venous tube 12 and an arterial tube 13; the venous tube 12 is connected to the ultrafilter 11 through a venous port 121; the venous tube 12 is sequentially provided with a venous flowmeter 122, a venous pot 123, a venous switch 124 and a venous connecting end 125; venous flow meter 122 is used to detect blood flow information through venous tube 12; the arterial tube 13 is connected to the ultrafilter 11 through an arterial port 131; the arterial tube 13 is sequentially provided with an arterial pot 132, an arterial flowmeter 133, a pump tube 136, an arterial switch 134 and an arterial connecting end 135; the arterial flow meter 133 is used to detect blood flow information flowing through the arterial tube 13.

The venous tube 12 is connected to the venous blood vessel of the patient through a venous connection port 125, the arterial tube 13 is connected to the arterial blood vessel of the patient through an arterial connection port 135, and the ultrafilter 11 may be a hollow fiber blood ultrafilter manufactured by Dongguan medical instruments GmbH, or in other embodiments, may be another type of ultrafilter. Both venous switch 124 and arterial switch 134 employ hemostatic clips. When the purification assembly 1 works, the venous connection end 125 and the arterial connection end 135 are respectively connected with a blood vessel of a patient, then blood is led out from the driven vessel 13, the blood flows into the ultrafilter 11 for filtration through the pump tube 136, the arterial flowmeter 133, the arterial pot 132 and the arterial interface 131 in sequence, the filtered blood flows into the venous tube 12 through the venous interface 121, then flows into the blood vessel of the patient through the venous flowmeter 122, the venous pot 123 and the venous connection end 125 in sequence, and a blood flow channel is formed. In addition, during the process, the venous flowmeter 122 and the arterial flowmeter 133 can continuously detect the blood flow of the venous tube 12 and the arterial tube 13 respectively, so that the observation is convenient.

The heating assembly 2 comprises a first spiral pipe 23 which is sleeved on the outer side of the venous pipe 12 and a second spiral pipe 24 which is sleeved on the outer side of the arterial pipe 13. Heating media are filled in the first spiral pipe 23 and the second spiral pipe 24. In the present embodiment, the heating medium is water, and when the hot water flows through the first spiral pipe 23, the blood in the venous tube 12 covered by the first spiral pipe 23 can be indirectly heated to maintain the temperature of the blood in the venous tube 12, and when the hot water flows through the second spiral pipe 24, the blood in the venous tube 12 covered by the second spiral pipe 24 can be heated to maintain the temperature of the blood in the venous tube 12.

Furthermore, one end of the first spiral pipe 23 is connected with one end of the second spiral pipe 24 through a first infusion pipe 25; a first heating sleeve 27 is sleeved outside the first spiral pipe 23; the other end of the second spiral pipe 24 is connected with the other end of the second spiral pipe 24 through a second infusion pipe 26; a second heating sleeve 28 is sleeved on the outer side of the second spiral pipe 24; and a water pump 29 for driving the heating medium to flow is connected to the second spiral pipe 24. A temperature sensor 126 is mounted on the intravenous tube 12 for detecting the temperature of the blood within the intravenous tube 12. The first spiral pipe 23 and the second spiral pipe 24 are communicated with each other through a first infusion pipe 25 and a second infusion pipe 26 to achieve circulation of heating media, the heating media can be heated through a first heating sleeve 27 and a second heating sleeve 28 respectively, the first heating sleeve 27 and the second heating sleeve 28 are provided with electric resistance wires which are spirally arranged in a surrounding mode, the electric resistance wires can generate heat when electrified, so that cooling media flowing through the first spiral pipe 23 and the second spiral pipe 24 are heated indirectly through the first infusion pipe 25 and the second infusion pipe 26, and then the media can flow through the first spiral pipe 23 and the second spiral pipe 24.

The outer side of the first spiral pipe 23 is covered with a venous pipe cover 21; the intravenous tube cover 21 has a through hole in its cover wall for the intravenous tube 12 to pass through. An arterial tube cover 22 is covered on the outer side of the second spiral tube 24; the arterial tube cover 22 has a through hole in its wall for the venous tube 12 to pass through. The venous duct cover 21 is used for providing protection for the first spiral duct 23, the arterial duct cover 22 is used for providing protection for the second spiral duct 24, the venous duct cover 21 and the arterial duct cover 22 can simultaneously provide a heat preservation function, heat loss is reduced, and energy utilization efficiency is improved.

The utility model discloses a theory of operation and use flow: the utility model discloses after installing, connect the blood vessel of patient with vein link 125 and artery link 135 respectively, then blood is drawn from driven vessel 13, blood passes through pump line 136, arterial flowmeter 133, arterial kettle 132 and artery interface 131 in proper order, the inflow ultrafilter 11 filters, blood after the filtration, through vein interface 121 inflow venous line 12, then pass through vein flowmeter 122, venous kettle 123 and vein link 125 in proper order, flow in patient's blood vessel to form a blood runner. Furthermore, during the process, the venous tube 12 and the arterial tube 13 can be continuously detected by the venous flowmeter 122 and the arterial flowmeter 133 respectively, so that the observation is convenient, the heating medium can be heated by the first heating jacket 27 and the second heating jacket 28 respectively, when the hot water flows through the first spiral pipe 23, the blood in the venous tube 12 covered by the first spiral pipe 23 can be indirectly heated, the temperature of the blood in the venous tube 12 is maintained, and when the hot water flows through the second spiral pipe 24, the blood in the venous tube 12 covered by the second spiral pipe 24 can be heated, and the temperature of the blood in the venous tube 12 is maintained.

To sum up, the blood purification device with flow measurement of the present invention is provided with the ultrafilter 11 for filtering blood, and the ultrafilter 11 is connected to the venous tube 12 and the arterial tube 13, and the venous tube 12 is sequentially provided with the venous flow meter 122, the venous pot 123, the venous switch 124, and the venous connection end 125; the arterial tube 13 is connected to the ultrafilter 11 through an arterial port 131; the arterial tube 13 is sequentially provided with an arterial pot 132, an arterial flowmeter 133, a pump tube 136, an arterial switch 134 and an arterial connecting end 135; therefore, the flow information can be respectively detected through the venous flow meter 122 and the arterial flow meter 133, the equipment adopted by the application has low cost, is convenient to use and improves the treatment efficiency.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A blood purification device with flow measurement, characterized in that: the method comprises the following steps:

a purification assembly (1) comprising an ultrafilter (11), a venous tube (12) and an arterial tube (13);

the venous tube (12) is connected to the ultrafilter (11) by a venous access (121); the venous tube (12) is sequentially provided with a venous flowmeter (122), a venous pot (123), a venous switch (124) and a venous connecting end (125); the venous flow meter (122) is used for detecting blood flow information flowing through the venous tube (12);

the arterial tube (13) is connected to the ultrafilter (11) through an arterial interface (131); the arterial tube (13) is sequentially provided with an arterial pot (132), an arterial flowmeter (133), a pump tube (136), an arterial switch (134) and an arterial connecting end (135); the arterial flow meter (133) is configured to detect information on a flow rate of blood through the arterial tube (13).

2. A blood purification apparatus with flow metering as claimed in claim 1, wherein: also included is a heating assembly (2) comprising:

a first spiral pipe (23) sleeved on the outer side of the venous pipe (12);

a second spiral tube (24) sleeved on the outer side of the arterial tube (13);

wherein, the first spiral pipe (23) and the second spiral pipe (24) are filled with heating media.

3. A blood purification apparatus with flow metering according to claim 2, characterized in that: one end of the first spiral pipe (23) is connected with one end of the second spiral pipe (24) through a first infusion pipe (25); a first heating sleeve (27) is sleeved on the outer side of the first spiral pipe (23);

the other end of the spiral tube II (24) is connected with the other end of the spiral tube II (24) through a second infusion tube (26); a second heating sleeve (28) is sleeved on the outer side of the second spiral pipe (24); and a water pump (29) for driving the heating medium to flow is connected to the second spiral pipe (24).

4. A blood purification apparatus with flow metering as claimed in claim 3, wherein: a temperature sensor (126) for detecting the temperature of blood in the venous tube (12) is mounted on the venous tube (12).

5. A blood purification apparatus with flow metering according to claim 3, characterized in that: a venous duct cover (21) is covered on the outer side of the first spiral tube (23); the intravenous tube cover (21) is provided with a through hole on the cover wall for the intravenous tube (12) to pass through.

6. A blood purification apparatus with flow metering as claimed in claim 3, wherein: an arterial tube cover (22) is covered on the outer side of the second spiral tube (24); the wall of the arterial tube cover (22) is provided with a through hole for the venous tube (12) to pass through.