Vein pot device and blood purification pipeline

Abstract

The utility model discloses a vein pot device and a blood purification pipeline, and relates to the technical field of medical instruments. The vein pot device comprises a vein pot body and a flow dividing body, the flow dividing body is arranged in the vein pot body, the flow dividing body comprises a buffering part and a bearing part, the buffering part and the bearing part divide a containing cavity into a first cavity, a second cavity and a third cavity, a liquid outlet is formed in the end, away from the second cavity, of the first cavity, and a liquid inlet is communicated with the first cavity or the second cavity; the liquid supplementing opening is communicated with the third cavity, blood enters the first cavity or the second cavity from the liquid inlet, the blood can fully flow, and no dead corner exists in the blood supplementing opening. After entering the third cavity through the liquid supplementing opening, the replacement liquid is buffered by the buffering part and then enters the second cavity through the communicating structure between the buffering part and the inner wall of the vein pot body, the impact of the replacement liquid on blood is reduced, and the risk of blood coagulation is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a venous pot device and a blood purification pipeline. Background Art

[0002] The blood purification circuit is used to draw blood out of the patient's body for purification before injecting it into the patient's body. The intravenous kettle is an important component of the blood purification circuit, which is used to collect air and filter blood.

[0003] The capacity of the existing intravenous pot is too large, and the unreasonable structural design makes it easy for the liquid added to the intravenous pot to impact the blood to form bubbles. The poor fluidity of the liquid in the intravenous pot makes it easy to form a dead space, increasing the risk of blood clotting in the intravenous pot. Utility Model Content

[0004] The utility model aims to provide a venous pot device and a blood purification pipeline, which can reduce the risk of blood clotting in the venous pot.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An intravenous pot device, comprising:

[0007] The intravenous pot body is provided with a receiving cavity, and the intravenous pot body is provided with a liquid inlet, a liquid outlet and a liquid replenishing port, and the liquid inlet, the liquid outlet and the liquid replenishing port are all connected with the receiving cavity;

[0008] A fluid divider is arranged in the accommodating chamber, the fluid divider divides the accommodating chamber into a first chamber, a second chamber and a third chamber, the fluid divider includes a buffer portion and a bearing portion, one end of the venous pot body is set as the liquid outlet, the first chamber is formed between the liquid outlet and the bearing portion, the second chamber is formed between the bearing portion and the buffer portion, and the third chamber is formed between the buffer portion and the other end of the venous pot body, the liquid inlet is communicated with the first chamber or the second chamber, the liquid replenishing port is communicated with the third chamber, the buffer portion is used to buffer the impact force of the liquid replenished from the liquid replenishing port entering the second chamber, the bearing portion is connected to the inner wall of the venous pot body, and the bearing portion and the buffer portion are both provided with a connecting structure to connect the first chamber, the second chamber and the third chamber.

[0009] As an optional solution of the venous pot device, the venous pot body is configured to be in a shuttle shape.

[0010] As an optional solution of the venous pot device, the connecting structure includes a connecting ring, the buffer portion is configured to be conical, the top of the conical buffer portion is arranged toward the third cavity, and the connecting ring is formed between the bottom and the inner wall of the venous pot body, and the liquid entering the third cavity through the liquid replenishing inlet can flow from the top of the buffer portion to the bottom to the connecting ring.

[0011] As an optional solution of the venous pot device, the connecting structure also includes a connecting hole, inner grooves are arranged at intervals along the outer periphery of the bearing part, the connecting hole is formed between the inner grooves and the inner wall of the venous pot body, and the convex part formed between adjacent inner grooves is connected to the inner wall of the venous pot body.

[0012] As an optional solution of the venous pot device, one end of the bearing portion close to the first cavity is configured as a conical structure.

[0013] As an optional scheme of the venous pot device, the venous pot body is configured as a split structure, including a first pot body and a second pot body, the first pot body and the second pot body are detachably connected, the liquid outlet is provided at the end of the first pot body away from the second pot body, the first pot body is provided with a first mounting groove and an annular mounting portion at the end close to the second pot body, the first mounting groove is provided on the inner wall of the first pot body and is cooperatively connected to the convex portion, the second pot body is provided with a second mounting groove on the inner wall of the end close to the first pot body, and the annular mounting portion is cooperatively connected to the second mounting groove.

[0014] As an optional solution of the intravenous pot device, a filter is further provided in the intravenous pot body, and the filter is arranged in the first cavity.

[0015] As an optional solution of the intravenous pot device, a connecting port is further provided at one end of the intravenous pot body away from the liquid outlet, and the connecting port is used to connect a branch pipeline.

[0016] As an optional solution of the venous pot device, a venous pressure sensor is connected to the connecting port or the branch pipe.

[0017] A blood purification circuit, comprising a venous pot device as described in any of the above schemes.

[0018] Beneficial effects of the utility model:

[0019] The venous pot device provided by the utility model is provided with a flow divider in the body of the venous pot, and the flow divider includes a buffer part and a bearing part, and the buffer part and the bearing part divide the accommodating cavity into a first cavity, a second cavity and a third cavity, and the end of the first cavity away from the second cavity is provided with a liquid outlet, and the liquid inlet is connected with the first cavity or the second cavity, and the liquid replenishing port is connected with the third cavity. When blood purification is performed, the patient's blood enters the second cavity from the liquid inlet, and the second cavity is located between the first cavity and the third cavity, and there is no dead angle therein, and the blood flows fully in the second cavity; or the blood enters the first cavity from the liquid inlet, which reduces the flow resistance of the blood in the body of the venous pot, prevents the formation of dead cavity, and can reduce the risk of blood coagulation. After the replacement fluid enters the third cavity through the liquid replenishing port, it enters the second cavity through the connecting structure after being buffered by the buffer part. The setting of the buffer part reduces the impact of the replacement fluid on the blood, so that the replacement fluid flows evenly and dispersedly onto the blood and forms a liquid layer, effectively isolating the air and blood, and further reducing the risk of blood coagulation in the venous pot.

[0020] The blood purification pipeline provided by the utility model comprises the above-mentioned venous pot device, which reduces the risk of blood coagulation in the venous pot and improves the effect of blood purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a venous kettle provided by a specific embodiment of the utility model;

[0022] Figure 2 It is a top view of a venous pot provided by a specific embodiment of the utility model;

[0023] Figure 3 yes Figure 2 Sectional view along AA direction;

[0024] Figure 4 It is an exploded view of a venous kettle provided in a specific embodiment of the utility model.

[0025] In the figure:

[0026] 1. Intravenous pot body; 11. First pot body; 111. Liquid outlet; 112. First mounting groove; 113. Ring mounting portion; 12. Second pot body; 121. Second mounting groove; 122. Liquid inlet; 123. Liquid replenishing inlet; 124. Connecting port;

[0027] 101, first cavity; 102, second cavity; 103, third cavity; 104, communication ring; 105, communication hole;

[0028] 2. flow divider; 21. buffer portion; 22. bearing portion; 221. inner groove; 222. convex portion; 223. conical structure; 23. connecting portion;

[0029] 3. Filter element; 31. Snap ring. DETAILED DESCRIPTION

[0030] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1-Figure 3 As shown, this embodiment provides an intravenous pot device, including an intravenous pot body 1, a flow divider 2 and a filter 3, the flow divider 2 and the filter 3 are both arranged in a receiving cavity in the intravenous pot body 1, and the intravenous pot body 1 is provided with a liquid inlet 122, a liquid outlet 111 and a liquid replenishing port 123, and the liquid inlet 122, the liquid outlet 111 and the liquid replenishing port 123 are all connected to the receiving cavity. The patient's blood enters the receiving cavity from the liquid inlet 122, and liquids such as replacement fluid enter the receiving cavity from the liquid replenishing port 123, and the replacement fluid and blood are filtered by the filter 3 and then flow out through the liquid outlet 111.

[0033] In order to prevent dead space from being left in the venous pot body 1, so that the blood cannot flow fully, and to prevent liquids such as replacement fluid from entering the venous pot body 1 to impact the blood and form bubbles, thereby increasing the risk of blood coagulation in the venous pot body 1, the flow divider 2 divides the accommodating cavity into a first cavity 101, a second cavity 102 and a third cavity 103. The flow divider 2 includes a buffer portion 21 and a bearing portion 22. One end of the venous pot body 1 is set as a liquid outlet 111. The first cavity 101 is formed between the liquid outlet 111 and the bearing portion 22. The filter element 3 is arranged in the first cavity 101, and the bearing portion 22 A second cavity 102 is formed between the buffer portion 21 and the other end of the venous pot body 1, a third cavity 103 is formed between the buffer portion 21 and the other end of the venous pot body 1, the liquid inlet 122 is connected to the first cavity 101 or the second cavity 102, the liquid replenishing port 123 is connected to the third cavity 103, the buffer portion 21 is used to buffer the impact force of the liquid replenished from the liquid replenishing port 123 entering the second cavity 102, the bearing portion 22 is connected to the inner wall of the venous pot body 1, and the bearing portion 22 and the buffer portion 21 are both provided with a connecting structure to connect the first cavity 101, the second cavity 102 and the third cavity 103. When blood purification is performed, blood enters the second cavity 102 from the liquid inlet 122, and the second cavity 102 is located between the first cavity 101 and the third cavity 103, and there is no dead angle therein, and blood fully flows in the second cavity 102; or blood enters the first cavity 101 from the liquid inlet 122, which reduces the flow resistance of blood in the venous pot body 1, prevents the formation of dead cavity, and can reduce the risk of blood coagulation. After the replacement fluid and other liquids enter the third cavity 103 through the liquid replenishing port 123, they are buffered by the buffer portion 21 and then enter the second cavity 102 through the connecting structure. The setting of the buffer portion 21 reduces the impact of the replacement fluid on the blood, so that the replacement fluid flows evenly and dispersedly onto the blood and forms a liquid layer, effectively isolating the air and blood, and further reducing the risk of blood clotting in the venous bottle.

[0034] Specifically, the liquid inlet 122 and the liquid replenishing inlet 123 are both configured as straight pipe ports, so that the liquid inlet 122 is connected to the liquid inlet pipe, and the liquid replenishing inlet 123 is connected to the liquid replenishing pipe.

[0035] The flow divider 2 further includes a connecting portion 23. The side where the buffer portion 21 and the bearing portion 22 are close to each other is set as a plane. The connecting portion 23 is used to connect the buffer portion 21 and the bearing portion 22. The connecting portion 23 is set as a column. The two ends of the connecting portion 23 of the column are smoothly connected to the centers of the two planes respectively, reducing the dead space in the second cavity 102. The connecting portion 23 occupies a smaller volume of the second cavity 102, which is more convenient for blood to flow fully in the second cavity 102.

[0036] Furthermore, the venous pot body 1 is configured in a shuttle shape. The shuttle-shaped venous pot body 1 has small circumference diameters at both ends and a large circumference diameter in the middle, so that the blood entering the second cavity 102 from the liquid inlet 122 can flow fully in the second cavity 102 without forming a dead cavity.

[0037] Specifically, the connecting structure includes a connecting ring 104, the buffer portion 21 is arranged in a cone shape, the top of the conical buffer portion 21 is arranged toward the third cavity 103, and a connecting ring 104 is formed between the bottom and the inner wall of the intravenous pot body 1. The liquid entering the third cavity 103 through the liquid replenishing port 123 flows from the top of the buffer portion 21 to the bottom to the connecting ring 104. Since the third cavity 103 gradually shrinks from the direction close to the buffer portion 21 to the direction away from the buffer portion 21, the liquid replenishing port 123 is arranged on the intravenous pot body 1 of the third cavity 103 away from the buffer portion 21. The replacement fluid entering through the liquid replenishing port 123 slowly flows down through the conical surface of the conical buffer portion 21, and disperses along the circumferential direction of the buffer portion 21 during the downward flow until it flows to the connecting ring 104 and enters the second cavity 102. The kinetic energy of the replacement fluid is smaller than when it flows downward in the vertical direction, and it is evenly dispersed on the blood to form a liquid layer, which effectively separates the air and the blood, thereby reducing the impact on the blood, reducing the formation of bubbles, and further reducing the risk of blood coagulation.

[0038] Of course, in other embodiments, the buffer portion 21 may also be configured as a spherical body or other buffer structures.

[0039] Furthermore, the connecting structure also includes a connecting hole 105, and inner grooves 221 are arranged at intervals along the outer periphery of the bearing part 22. The connecting holes 105 are formed between the inner grooves 221 and the inner wall of the venous pot body 1, and the convex parts 222 formed between adjacent inner grooves 221 are connected to the inner wall of the venous pot body 1. The diverter 2 is fixed in the accommodating cavity through the bearing part 22. In order to realize the connection between the diverter 2 and the venous pot body 1 and allow the liquid to flow into the first cavity 101 through the second cavity 102, the convex parts 222 on the outer periphery of the bearing part 22 are connected to the inner wall of the venous pot body 1 by interference fit or other methods such as gluing, and the liquid flows to the first cavity 101 through the connecting holes 105. The multiple connecting holes 105 around the bearing part 22 allow the replacement fluid and blood to flow into the first cavity 101 through the multiple connecting holes 105, preventing dead space and further reducing the risk of blood coagulation.

[0040] Of course, in other embodiments, the connecting hole 105 may be directly provided on the plane of the bearing portion 22 , and the outer circumference of the bearing portion 22 is cooperatively connected with the inner wall of the intravenous pot body 1 .

[0041] Furthermore, one end of the bearing part 22 close to the first cavity 101 is provided with a conical structure 223. The setting of the conical structure 223 is used to guide the replacement fluid and blood entering the first cavity 101 to gradually flow downward from the circumference of the bearing part 22 to a position close to the center toward the filter element 3, and the filter element 3 is also provided as a conical filter element, and the small end of the conical filter element is provided close to the small end of the conical structure 223, which can prevent blood from accumulating in the middle of the bearing part 22, resulting in too slow a flow rate to form a blood clot.

[0042] In order to facilitate the installation of the flow divider 2, Figure 3 and Figure 4 As shown, the intravenous pot body 1 is configured as a split structure, including a first pot body 11 and a second pot body 12. The end of the first pot body 11 away from the second pot body 12 is provided with a liquid outlet 111, and the end of the first pot body 11 close to the second pot body 12 is provided with a first mounting groove 112 and an annular mounting portion 113. The first mounting groove 112 is provided on the inner wall of the first pot body 11 and is connected with the protrusion 222. The inner wall of the second pot body 12 close to the first pot body 11 is provided with a second mounting groove 121, and the annular mounting portion 113 is connected with the second mounting groove 121. A snap ring 31 is provided at the large end of the conical filter element, and a snap groove matching the snap ring 31 is provided at the end of the first pot body 11 close to the liquid outlet 111, and the snap ring 31 is snapped with the snap groove. The intravenous pot body 1 is configured as a split structure to facilitate the assembly of the diverter 2 and the filter element 3.

[0043] In this embodiment, the liquid inlet 122 and the liquid replenishing port 123 are both arranged on the second pot body 12. When installing the diverter body 2, the filter element 3 is first inserted into the first pot body 11 and clamped with the first pot body 11, and then the convex portion 222 of the bearing portion 22 of the diverter body 2 is matched with the first mounting groove 112, and then the diverter body 2 is inserted into the second pot body 12. The second mounting groove 121 is set as an annular groove, and the annular mounting portion 113 is set as a connecting ring. The connecting ring is sealed with the annular groove, so that the filter element 3 and the diverter body 2 are installed in the intravenous pot body 1, and finally glue is applied at the connection between the first pot body 11 and the second pot body 12 to bond the two together.

[0044] Furthermore, a connection port 124 is also provided at one end of the intravenous pot body 1 away from the liquid outlet 111, and the connection port 124 is used to connect a branch pipeline. In the present embodiment, two connection ports 124 are provided at one end of the second pot body 12 away from the first pot body 11, and each of the two connection ports 124 is connected to a branch pipeline, one of which is used to monitor the pressure condition in the intravenous pot body 1, and then judge the liquid flow condition in the intravenous pot body 1 according to the pressure condition in the intravenous pot body 1. The other branch pipeline is used to connect a syringe or an infusion set. A clamp, a Luer interface and a pipeline plug are provided on each branch pipeline, and the clamp can control the connection or disconnection of the branch pipeline, and the Luer interface is used to connect components such as a syringe, an infusion set or a sensor. When the branch pipeline is not connected to components such as a syringe, an infusion set or a sensor, the pipeline plug is connected to the Luer interface to block the branch pipeline.

[0045] When monitoring the pressure in the venous pot body 1, a venous pressure sensor is connected to the connection port 124 or the branch line. In this embodiment, the venous pressure sensor is connected to the Luer interface on the branch line; of course, in other embodiments, the branch line may not be provided, and the venous pressure sensor may be directly connected to the connection port 124.

[0046] This embodiment also provides a blood purification pipeline, including the above-mentioned venous pot device, which reduces the risk of blood coagulation in the venous pot and improves the effect of blood purification.

[0047] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation method and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An intravenous pot device, characterized in that: include: An intravenous pot body (1), wherein a receiving cavity is arranged inside the intravenous pot body (1), and a liquid inlet (122), a liquid outlet (111) and a liquid replenishing inlet (123) are arranged on the intravenous pot body (1), and the liquid inlet (122), the liquid outlet (111) and the liquid replenishing inlet (123) are all in communication with the receiving cavity; A flow divider (2) is disposed in the accommodating chamber, the flow divider (2) divides the accommodating chamber into a first chamber (101), a second chamber (102) and a third chamber (103), the flow divider (2) comprises a buffer portion (21) and a bearing portion (22), one end of the venous pot body (1) is arranged as the liquid outlet (111), the first chamber (101) is formed between the liquid outlet (111) and the bearing portion (22), the second chamber (102) is formed between the bearing portion (22) and the buffer portion (21), and a third chamber (103) is formed between the buffer portion (21) and the other end of the venous pot body (1). The third cavity (103), the liquid inlet (122) is connected to the first cavity (101) or the second cavity (102), the liquid replenishing port (123) is connected to the third cavity (103), the buffer part (21) is used to buffer the impact force of the liquid replenished from the liquid replenishing port (123) entering the second cavity (102), the bearing part (22) is connected to the inner wall of the intravenous pot body (1), and the bearing part (22) and the buffer part (21) are both provided with a connecting structure to connect the first cavity (101), the second cavity (102) and the third cavity (103).

2. The intravenous pot device according to claim 1, characterized in that: The venous pot body (1) is configured to be in a shuttle shape.

3. The intravenous pot device according to claim 2, characterized in that: The connecting structure includes a connecting ring (104), the buffer portion (21) is arranged in a cone shape, the top of the conical buffer portion (21) is arranged toward the third cavity (103), and the connecting ring (104) is formed between the bottom and the inner wall of the venous pot body (1), and the liquid entering the third cavity (103) through the liquid replenishing port (123) flows from the top of the buffer portion (21) to the bottom to the connecting ring (104).

4. The intravenous pot device according to claim 2, characterized in that: The connecting structure also includes a connecting hole (105), inner grooves (221) are arranged at intervals along the outer periphery of the bearing portion (22), the connecting hole (105) is formed between the inner grooves (221) and the inner wall of the venous pot body (1), and the convex portion (222) formed between adjacent inner grooves (221) is connected to the inner wall of the venous pot body (1).

5. The intravenous pot device according to claim 4, characterized in that: One end of the bearing portion (22) close to the first cavity (101) is configured as a conical structure (223).

6. The intravenous pot device according to claim 4, characterized in that: The intravenous pot body (1) is configured as a split structure, comprising a first pot body (11) and a second pot body (12); the first pot body (11) is provided with the liquid outlet (111) at one end away from the second pot body (12); the first pot body (11) is provided with a first mounting groove (112) and an annular mounting portion (113) at one end close to the second pot body (12); the first mounting groove (112) is provided on the inner wall of the first pot body (11) and is connected with the protrusion (222); the second pot body (12) is provided with a second mounting groove (121) on the inner wall of one end close to the first pot body (11); and the annular mounting portion (113) is connected with the second mounting groove (121).

7. The intravenous pot device according to any one of claims 1 to 6, characterized in that: A filter element (3) is also provided in the intravenous pot body (1), and the filter element (3) is arranged in the first cavity (101).

8. The intravenous pot device according to any one of claims 1 to 6, characterized in that: A connection port (124) is also provided at one end of the intravenous pot body (1) away from the liquid outlet (111), and the connection port (124) is used to connect a branch pipeline.

9. The intravenous pot device according to claim 8, characterized in that: The connection port (124) or the branch line is connected to a venous pressure sensor.

10. A blood purification circuit, characterized in that: Comprising the intravenous pot device as described in any one of claims 1-9.

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