Vein pot

Abstract

The utility model discloses a vein pot which comprises a lower shell, an upper shell fixedly arranged above the lower shell, a stepping rotating frame rotationally arranged between the lower shell and the upper shell, and a plurality of pot body assemblies fixedly arranged in the stepping rotating frame and evenly distributed around the axis of the stepping rotating frame. Lower connectors communicated with the bottom ends of the inner cavities of the three adjacent kettle body assemblies are arranged in the lower shell, and the three lower connectors are sequentially connected with a bleeding catheter, a flushing liquid inlet pipe and a normal saline inlet pipe. Three upper connectors which are matched with the three lower connectors and are communicated with the top end of the inner cavity of the corresponding kettle body assembly are arranged in the upper shell; and a blood inlet catheter, a flushing drainage pipe and an exhaust pipe are sequentially connected to the three upper connectors. According to the utility model, the plurality of pot body assemblies are replaced progressively, so that the smooth proceeding of peal dialysis is ensured, the blood loss of a patient is reduced, each pot body assembly is recycled, the replacement frequency of the pot body assemblies is reduced, and the risk of external infection is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hemodialysis equipment technical field, concretely is a kind of venous jug. BACKGROUND

[0002] Hemodialysis is a common clinical treatment method, especially for the clinical treatment of various kidney diseases. Hemodialysis is a treatment method that draws patient blood, removes excess water and harmful substances from the patient's body through a semi-permeable membrane in a dialyzer, and then returns the purified blood to the patient's body. To prevent blood clots and blood coagulation during extracorporeal circulation, anticoagulant drugs such as heparin are required during hemodialysis to ensure smooth extracorporeal circulation during hemodialysis. However, patients with active bleeding and high risk of bleeding, coagulation dysfunction, and postoperative patients may experience or worsen bleeding risk when using anticoagulants. Clinically, heparin-free hemodialysis is often used. Although heparin-free dialysis can reduce bleeding and subsequent bleeding, the probability of coagulation in the extracorporeal circulation pathway is significantly higher than that of conventional hemodialysis. Studies have shown that coagulation mainly occurs in the venous jug, and severe venous jug coagulation can block the blood return pathway, causing blood loss in patients, reducing dialysis quality, and even endangering the patient's life.

[0003] Currently, there are three methods for treating venous jug coagulation in clinical practice. One is to discard the blood and replace the dialysis line or terminate dialysis. This method is direct, simple and crude, and the cost is the loss of a large amount of patient blood and increased department costs. The second method is to find a second return path and temporarily replace it with another return path. This method is complex, has a risk of infection control, and is cumbersome to operate. The third method uses a parallel double-venous jug dialysis line for dialysis. When coagulation occurs in the venous jug, the standby venous jug is replaced to continue dialysis. This method is easy to operate, but requires replacement of the supporting line, which increases costs and makes it difficult to apply to clinical departments. UTILITY MODEL CONTENT

[0004] The utility model aims at the above-mentioned defects and deficiencies, and provides a venous jug, which realizes progressive replacement by setting multiple jug body assemblies that can be switched synchronously, ensures the smooth progress of dialysis, reduces blood loss in patients, and at the same time, realizes the circulation process of blood filtration, flushing, exhaust, standby and blood filtration for each jug body assembly, reduces the replacement frequency of each jug body assembly, and reduces the risk of external infection.

[0005] To solve the above technical problems, one technical solution of the utility model is:

[0006] A kind of intravenous bottle, including lower shell, the upper shell fixedly arranged above lower shell, the step rotary frame rotationally arranged between lower shell and upper shell, multiple kettle body components fixedly arranged in step rotary frame and evenly distributed around the axis of step rotary frame, lower connecting head is opened in the lower shell and is connected with the inner cavity bottom end of three adjacent kettle body components, three lower connecting heads are sequentially connected with bleeding catheter, flushing liquid inlet pipe and physiological saline inlet pipe, upper connecting head is opened in the upper shell and is connected with the inner cavity top end of corresponding kettle body component and is arranged in pair with three lower connecting heads, three upper connecting heads are sequentially connected with blood inlet catheter, flushing liquid outlet pipe and exhaust pipe.

[0007] Further, the step rotary frame includes the lower disc rotationally arranged in the center of the top surface of lower shell, the upper disc rotationally arranged in the center of the bottom surface of upper shell, the outer wall of lower disc and upper disc is fixedly embedded with connecting rod.

[0008] Further, the kettle body component includes liquid storage cylinder, top cover fixedly arranged at the top end of liquid storage cylinder, bottom cover fixedly arranged at the bottom end of liquid storage cylinder, the top surface of bottom cover is detachably inserted with filter screen.

[0009] Further, the bottom surface of bottom cover is provided with lower insertion cylinder body, the bottom end of lower insertion cylinder body penetrates lower disc and movably connects with the top end of lower connecting head.

[0010] The top surface of top cover is provided with upper insertion cylinder body, the top end of upper insertion cylinder body penetrates upper disc and movably connects with the bottom end of upper connecting head.

[0011] Further, the bottom surface of lower disc is provided with lower boss outside lower insertion cylinder body, the top surface of upper disc is provided with upper boss outside upper insertion cylinder body.

[0012] Further, the top surface of bottom cover is provided with at least one insertion column, the bottom surface of filter screen is provided with insertion slot hole matched with insertion column.

[0013] Further, the top surface of lower disc is provided with lower embedding slot, bottom cover is embedded in lower embedding slot.

[0014] The bottom surface of upper disc is provided with upper embedding slot, top cover is embedded in upper embedding slot.

[0015] Further, the top surface of lower shell is fixedly provided with lower sealing gasket, the bottom surface of lower disc is in sliding contact with the top surface of lower sealing gasket.

[0016] The bottom surface of upper shell is fixedly provided with upper sealing gasket, the top surface of upper disc is in sliding contact with the bottom surface of upper sealing gasket.

[0017] The lower sealing gasket is provided with a lower through hole above the top end of the lower connector, and the upper sealing gasket is provided with an upper through hole below the bottom end of the upper connector.

[0018] Further, the exhaust pipe is provided with a dustproof filter plug.

[0019] Further, the top of the lower shell is fixedly provided with an inserting wall on both sides, the bottom surface of the upper shell is provided with an inserting slot, and the top end of the inserting wall is detachably inserted into the inserting slot.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1. The utility model discloses a rotatable stepping rotating frame is arranged between the lower shell and the upper shell, a plurality of kettle body assemblies are arranged in the stepping rotating frame, and the stepping rotating frame is rotated to realize the progressive replacement of the kettle body assemblies, so that the patient can avoid losing a large amount of blood, the dialysis can be smoothly carried out, the risk of bacterial infection in the conversion process can be effectively reduced, and the operation difficulty of the operator is remarkably reduced.

[0022] 2. The utility model discloses a rotatable stepping rotating frame is arranged between the lower shell and the upper shell, a plurality of kettle body assemblies are arranged in the stepping rotating frame, and the stepping rotating frame is rotated to realize the progressive replacement of the kettle body assemblies, so that the patient can avoid losing a large amount of blood, the dialysis can be smoothly carried out, the risk of bacterial infection in the conversion process can be effectively reduced, and the operation difficulty of the operator is remarkably reduced.

[0023] 3. The utility model discloses a rotatable stepping rotating frame is arranged between the lower shell and the upper shell, a plurality of kettle body assemblies are arranged in the stepping rotating frame, and the stepping rotating frame is rotated to realize the progressive replacement of the kettle body assemblies, so that the patient can avoid losing a large amount of blood, the dialysis can be smoothly carried out, the risk of bacterial infection in the conversion process can be effectively reduced, and the operation difficulty of the operator is remarkably reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is one of the three-dimensional structure schematic diagrams of the utility model;

[0025] Figure 2 It is the second three-dimensional structure schematic diagram of the utility model;

[0026] Figure 3 It is the sectional structure schematic diagram of the utility model;

[0027] Figure 4 It is the three-dimensional structure schematic diagram of the lower shell and the upper shell in the assembled state;

[0028] Figure 5 It is one of the three-dimensional structure schematic diagrams of the lower shell;

[0029] Figure 6 Fig. 2 is a second perspective view of the lower housing;

[0030] Figure 7 Fig. 3 is a first perspective view of the upper housing;

[0031] Figure 8 Fig. 4 is a second perspective view of the upper housing;

[0032] Figure 9 Fig. 5 is a perspective view of the lower gasket;

[0033] Figure 10 Fig. 6 is a first perspective view of the kettle assembly in the assembled state in the step turn stand;

[0034] Figure 11 Fig. 7 is a second perspective view of the kettle assembly in the assembled state in the step turn stand;

[0035] Figure 12 Fig. 8 is a first perspective view of the lower disc;

[0036] Figure 13 Fig. 9 is a second perspective view of the lower disc;

[0037] Figure 14 Fig. 10 is a perspective view of the connecting rod;

[0038] Figure 15 Fig. 11 is a perspective view of the kettle assembly;

[0039] Figure 16 Fig. 12 is a sectional view of the kettle assembly;

[0040] Figure 17 Fig. 13 is a perspective view of the bottom cover;

[0041] Figure 18 Fig. 14 is a perspective view of the filter screen.

[0042] In the figure: 1, lower shell; 101, lower connector; 102, plug wall; 103, fixed wing plate; 2, upper shell; 201, upper connector; 202, plug slot; 3, step rotary frame; 301, lower disc body; 3011, lower embedding groove; 3012, lower through hole; 302, upper disc body; 303, connecting rod; 4, kettle body assembly; 401, liquid storage cylinder; 402, top cover; 403, bottom cover; 4031, plug column; 404, filter screen; 4041, plug slot hole; 405, positioning protrusion; 5, bleeding catheter; 6, flushing liquid inlet pipe; 7, physiological saline water inlet pipe; 8, blood inlet pipe; 9, flushing liquid outlet pipe; 10, exhaust pipe; 11, lower sealing gasket; 12, upper sealing gasket; 13, dustproof filter plug. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described in detail with reference to the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0044] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. When a component is referred to as being "fixed on" another component, it can be directly fixed on the other component or there can be a middle component.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments of the present application, and is not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0046] Please refer to Figures 1 to 8The utility model provides a kind of intravenous bottle, including lower shell 1, fixedly arranged on the upper shell 2 of lower shell 1, rotationally arranged between lower shell 1 and upper shell 2 step rotation frame 3, fixedly arranged in step rotation frame 3 and the even distribution of multiple kettle body assemblies 4 around the axis of step rotation frame 3.Specifically, lower shell 1 and upper shell 2 are prepared by polyvinyl chloride (PVC) material, of course, it can be other non-toxic, will not cause pollution to blood material, specific not do limit.Lower shell 1 and the main body of upper shell 2 are discoid, and the edge of opposite surface of both is integrally provided with side plate, for the placement and limit of lower gasket 11 and upper gasket 12.The top of lower shell 1 both sides is fixedly provided with the insertion wall 102, and the bottom surface of upper shell 2 is provided with the insertion slot 202, and the top of insertion wall 102 is detachably inserted in insertion slot 202.Through the insertion of insertion wall 102 and insertion slot 202, upper shell 2 can be fixedly connected to the top of lower shell 1, and the center of opposite surface of lower shell 1 and upper shell 2 is provided with rotation shaft slot, so that upper shell 2 and lower shell 1 form the outer frame structure of rotationally connected both ends of step rotation frame 3.Each insertion wall 102 is integrally provided with fixed wing plate 103 on the outer side, for the detachable fixed connection of lower shell 1 on hemodialysis equipment or other fixed bracket, so that the intravenous bottle is integrally fixed and placed.

[0047] As Figure 10 And Figure 11 The utility model discloses a kind of intravenous bottle, including lower shell 1, fixedly arranged on the upper shell 2 of lower shell 1, rotationally arranged between lower shell 1 and upper shell 2 step rotation frame 3, fixedly arranged in step rotation frame 3 and the even distribution of multiple kettle body assemblies 4 around the axis of step rotation frame 3.Specifically, lower shell 1 and upper shell 2 are prepared by polyvinyl chloride (PVC) material, of course, it can be other non-toxic, will not cause pollution to blood material, specific not do limit.Lower shell 1 and the main body of upper shell 2 are discoid, and the edge of opposite surface of both is integrally provided with side plate, for the placement and limit of lower gasket 11 and upper gasket 12.The top of lower shell 1 both sides is fixedly provided with the insertion wall 102, and the bottom surface of upper shell 2 is provided with the insertion slot 202, and the top of insertion wall 102 is detachably inserted in insertion slot 202.Through the insertion of insertion wall 102 and insertion slot 202, upper shell 2 can be fixedly connected to the top of lower shell 1, and the center of opposite surface of lower shell 1 and upper shell 2 is provided with rotation shaft slot, so that upper shell 2 and lower shell 1 form the outer frame structure of rotationally connected both ends of step rotation frame 3.Each insertion wall 102 is integrally provided with fixed wing plate 103 on the outer side, for the detachable fixed connection of lower shell 1 on hemodialysis equipment or other fixed bracket, so that the intravenous bottle is integrally fixed and placed. Figure 12 Figure 13 As Figure 10 And Figure 11 The utility model discloses a kind of intravenous bottle, including lower shell 1, fixedly arranged on the upper shell 2 of lower shell 1, rotationally arranged between lower shell 1 and upper shell 2 step rotation frame 3, fixedly arranged in step rotation frame 3 and the even distribution of multiple kettle body assemblies 4 around the axis of step rotation frame 3.Specifically, lower shell 1 and upper shell 2 are prepared by polyvinyl chloride (PVC) material, of course, it can be other non-toxic, will not cause pollution to blood material, specific not do limit.Lower shell 1 and the main body of upper shell 2 are discoid, and the edge of opposite surface of both is integrally provided with side plate, for the placement and limit of lower gasket 11 and upper gasket 12.The top of lower shell 1 both sides is fixedly provided with the insertion wall 102, and the bottom surface of upper shell 2 is provided with the insertion slot 202, and the top of insertion wall 102 is detachably inserted in insertion slot 202.Through the insertion of insertion wall 102 and insertion slot 202, upper shell 2 can be fixedly connected to the top of lower shell 1, and the center of opposite surface of lower shell 1 and upper shell 2 is provided with rotation shaft slot, so that upper shell 2 and lower shell 1 form the outer frame structure of rotationally connected both ends of step rotation frame 3.Each insertion wall 102 is integrally provided with fixed wing plate 103 on the outer side, for the detachable fixed connection of lower shell 1 on hemodialysis equipment or other fixed bracket, so that the intravenous bottle is integrally fixed and placed.

[0048] As Figure 15 and Figure 16 shown, the kettle body assembly 4 comprises a liquid storage cylinder 401, a top cover 402 fixedly arranged at the top end of the liquid storage cylinder 401, and a bottom cover 403 fixedly arranged at the bottom end of the liquid storage cylinder 401. The top surface of the bottom cover 403 is detachably inserted with a filter screen 404. The liquid storage cylinder 401, the top cover 402, and the bottom cover 403 are all made of polyvinyl chloride (PVC) material. The liquid storage cylinder 401 is a transparent hollow cylindrical body. The top cover 402 and the bottom cover 403 are respectively tightly inserted and buckled with the two ends of the liquid storage cylinder 401. The top surface of the bottom cover 403 is provided with at least one insertion column 4031 (as shown in Figure 17 four shown in the middle). The bottom surface of the filter screen 404 is provided with an insertion slot hole 4041 matched with the insertion column 4031. Through the insertion and matching of the insertion slot hole 4041 and the insertion column 4031, the filter screen 404 can be quickly assembled on the bottom cover 403 in a detachable manner.

[0049] The top surface of the lower disc body 301 is provided with a lower embedding groove 3011 corresponding to the number of the kettle body assembly 4. The bottom cover 403 is embedded in the lower embedding groove 3011. The bottom surface of the upper disc body 302 is provided with an upper embedding groove matched with the lower embedding groove 3011. The top cover 402 is embedded in the upper embedding groove, so that the kettle body assembly 4 is fixedly arranged in the step rotating frame 3. Preferably, the outer wall of the liquid storage cylinder 401 is integrally provided with a positioning protrusion 405 at the bottom end. The inner wall of the lower embedding groove 3011 is provided with a positioning insertion slot matched with the positioning protrusion 405. Through the matching of the positioning protrusion 405 and the positioning insertion slot, the kettle body assembly 4 can be quickly positioned in the lower embedding groove 3011, and the embedding stability of the bottom cover 403 in the lower embedding groove 3011 is enhanced. In the embodiment, the number of the kettle body assembly 4 is four, so the number of the lower embedding groove 3011 and the upper embedding groove is also four (as shown in Figure 12 ).

[0050] The axis of each lower embedding groove 3011 is provided with a lower through hole 3012. The axis of each upper embedding groove is provided with an upper through hole matched with the lower through hole 3012. The bottom surface of the bottom cover 403 is provided with a lower insertion cylinder body. The bottom end of the lower insertion cylinder body penetrates the lower disc body 301 and is located in the lower through hole 3012. The top surface of the top cover 402 is provided with an upper insertion cylinder body. The top end of the upper insertion cylinder body penetrates the upper disc body 302 and is located in the upper through hole, so that the inner cavity of the kettle body assembly 4 is in communication with the outer sides of the upper and lower ends of the step rotating frame 3. The bottom surface of the filter screen 404 is provided with an insertion head in communication with the inside thereof. The insertion head is located in the lower insertion cylinder body, so that the liquid sent into the liquid storage cylinder 401 by the upper insertion cylinder body can be filtered by the filter screen 404, and then sent into the lower insertion cylinder body through the insertion head in the inside of the filter screen 404, and then sent out from the kettle body assembly 4.

[0051] The lower shell 1 is provided with three lower connecting heads 101 which are communicated with the bottom ends of the inner cavities of the three adjacent pot body assemblies 4. The three lower connecting heads 101 are sequentially connected with the bleeding catheter 5, the flushing liquid inlet pipe 6 and the physiological saline water inlet pipe 7. The upper shell 2 is provided with three upper connecting heads 201 which are arranged in pairs with the three lower connecting heads 101 and communicated with the top ends of the inner cavities of the corresponding pot body assemblies 4. The three upper connecting heads 201 are sequentially connected with the blood inlet catheter 8, the flushing liquid outlet pipe 9 and the exhaust pipe 10. The bleeding catheter 5 is connected with the venous puncture needle or the catheter venous end. The blood inlet catheter 8 is connected with the venous pot side branch of the hemodialysis equipment and communicated with the interior of the pot body assembly 4 to form a blood circulation loop and realize blood filtration. The flushing liquid inlet pipe 6 is connected with the external flushing device (such as a micro high-pressure pump). The flushing liquid outlet pipe 9 is connected with the external waste liquid collecting bag. The high flow rate physiological saline water is supplied by the flushing device, sent into the pot body assembly 4 to be cleaned through the flushing liquid inlet pipe 6 and the flushing liquid outlet pipe 9, and reversely flushes the inner wall and the filter screen 404 of the pot body assembly 4. The previously filtered impurities on the surface of the filter screen 404 are separated from the filter screen 404 and enter the flushing liquid flow. The waste liquid after flushing is sent into the waste liquid collecting bag through the flushing liquid outlet pipe 9 for collection. The physiological saline water inlet pipe 7 is connected with the external water supply device (such as a micro low-pressure pump). After the two ends of the pot body assembly 4 after flushing are communicated with the physiological saline water inlet pipe 7 and the exhaust pipe 10, the water supply device quantitatively supplies physiological saline water to the interior bottom end of the pot body assembly 4 through the physiological saline water inlet pipe 7. The air in the interior of the pot body assembly 4 is discharged through the upper exhaust pipe 10, so that the pot body assembly 4 contains a preset amount of physiological saline water. Preferably, the plastic clamps are arranged on the bleeding catheter 5 and the blood inlet catheter 8. Before the position of each pot body assembly 4 is alternately replaced by the stepping rotating frame 3, the bleeding catheter 5 and the blood inlet catheter 8 are closed by the plastic clamps to avoid blood loss. After the position of the pot body assembly 4 is switched, the plastic clamps are opened to restore the smoothness of the corresponding pipelines. The dustproof filter plug 13 is arranged in the exhaust pipe 10 to avoid the entry of external impurities or bacteria into the pot body assembly 4.

[0052] The top surface of the lower shell 1 is fixedly provided with a lower sealing gasket 11, the bottom surface of the lower disc body 301 is in sliding contact with the top surface of the lower sealing gasket 11; the bottom surface of the upper shell 2 is fixedly provided with an upper sealing gasket 12, the top surface of the upper disc body 302 is in sliding contact with the bottom surface of the upper sealing gasket 12; the lower sealing gasket 11 is provided with a lower through hole above the top end of the lower connecting head 101, and the upper sealing gasket 12 is provided with an upper through hole below the bottom end of the upper connecting head 201. The bottom surface of the lower disc body 301 is provided with a lower boss outside the lower insertion cylinder, and the top surface of the upper disc body 302 is provided with an upper boss outside the upper insertion cylinder. In the working position, the lower boss is sealingly attached to the top end of the lower through hole, and the upper boss is sealingly attached to the bottom end of the upper through hole, so that the bottom end of the lower insertion cylinder of the kettle body assembly 4 is reliably sealingly connected with the corresponding lower connecting head 101, and the top end of the upper insertion cylinder is reliably sealingly connected with the corresponding upper connecting head 201, thereby preventing liquid flowing through the kettle body assembly 4 from overflowing into the lower shell 1 or the upper shell 2; when the position of the kettle body assembly 4 is switched, the bottom end of the lower insertion cylinder is slidingly attached to the top surface of the lower sealing gasket 11, and the top end of the upper insertion cylinder is slidingly attached to the bottom surface of the upper sealing gasket 12, thereby preventing the liquid remaining in the kettle body assembly 4 from overflowing, and the several positions of the kettle body assembly 4 are fixed, so that the liquid remaining on the lower sealing gasket 11 / upper sealing gasket 12 between the positions is the same, and the remaining liquid between the sections does not cross.

[0053] The working process of the venous kettle is described below by taking the number of the kettle body assemblies 4 as four as an example. For the convenience of description, the four kettle body assemblies 4 are defined as No. 1 kettle, No. 2 kettle, No. 3 kettle and No. 4 kettle respectively. The position of the kettle body assembly 4 connected with the bleeding catheter 5 and the blood inlet catheter 8 is defined as a blood filtering position, the position connected with the flushing liquid inlet pipe 6 and the flushing liquid outlet pipe 9 is defined as a flushing position, and the position connected with the physiological saline water inlet pipe 7 and the exhaust pipe 10 is defined as an exhaust position, and the remaining positions are defined as standby positions. The anticlockwise direction in the top view state is the stepping rotation direction of the stepping rotating frame 3, and the blood filtering position, the flushing position, the exhaust position and the standby position are sequentially arranged in the clockwise direction.

[0054] In the initial working state, the No. 1 kettle is located at the blood filtering position, the No. 2 kettle is located at the flushing position, the No. 3 kettle is located at the exhaust position, and the No. 4 kettle is located at the standby position. The blood to be filtered is sent into the No. 1 kettle through the blood inlet catheter 8, filtered through the filter screen 404 in the No. 1 kettle, and then sent out through the bleeding catheter 5, and then sent back to the patient's body through the venous puncture needle. The water supply device quantitatively supplies physiological saline water to the inner bottom end of the No. 3 kettle through the physiological saline water inlet pipe 7, the air in the No. 3 kettle is discharged through the upper exhaust pipe 10, so that the No. 3 kettle contains a preset amount of physiological saline water, and the No. 4 kettle has been filled with a preset amount of physiological saline water by the water supply device.

[0055] When the blood coagulation appears in the No. 1 kettle, the blood inlet pipe 8 and the blood outlet pipe 5 are temporarily closed by the plastic clamp, the medical staff slowly rotates the step rotating frame 3, when the feeling of stoppage appears (the lower convex platform of the bottom surface of the lower disc body 301 enters the lower through hole from the surface of the lower sealing gasket 11, and the upper convex platform of the top surface of the upper disc body 302 enters the upper through hole from the surface of the upper sealing gasket 12), the synchronous switching of the working positions of the various kettle assemblies 4 is completed. At this time, the No. 1 kettle is located at the flushing working position, the No. 2 kettle is located at the exhaust working position, the No. 3 kettle is located at the standby working position, and the No. 4 kettle is located at the blood filtering working position. The plastic clamp is opened, so that the blood inlet pipe 8 and the blood outlet pipe 5 are re-opened, at this time, the No. 4 kettle continues to complete the blood filtering cycle process. The flushing device works, the high flow rate of physiological saline is flushed into the No. 1 kettle through the bottom flushing inlet pipe 6, the inside of the No. 1 kettle is cleaned, the reverse flushing is carried out on the filter screen 404, the impurities remaining on the surface of the filter screen 404 are separated from the filter screen 404 and enter the flushing liquid flow, and the waste liquid after flushing is sent into the waste liquid collecting bag through the flushing outlet pipe 9 for collection. At the same time, the water supply device quantitatively supplies physiological saline to the inside bottom end of the No. 2 kettle through the physiological saline inlet pipe 7, the air in the No. 2 kettle is discharged through the upper exhaust pipe 10, so that the No. 2 kettle contains a preset amount of physiological saline.

[0056] When the blood coagulation appears in the No. 2 kettle, the working positions of the various kettle assemblies 4 are switched through the same operation as described above, the replacement of the kettle assemblies 4 can be quickly realized, so that the loss of a large amount of blood of the patient is avoided, the smooth dialysis is ensured, the risk of bacterial infection in the conversion process is effectively reduced, and the operation difficulty of the operator is significantly reduced.

[0057] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion according to the content of the present application and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A venous pot, characterized by: The utility model relates to a blood transfusion device, including lower shell (1), fixedly arranged on the upper shell (2) of lower shell (1), rotationally arranged between lower shell (1) and upper shell (2) step rotation frame (3), fixedly arranged in step rotation frame (3) and the axis of evenly distributed multiple kettle body assembly (4) around step rotation frame (3), the lower shell (1) is opened in and is connected with the inner chamber bottom end of three adjacent kettle body assembly (4) with three lower connecting heads (101), three lower connecting heads (101) are connected with blood outlet pipe (5), flush liquid inlet pipe (6) and physiological saline water inlet pipe (7) in proper order, the upper shell (2) is opened in and is connected with the inner chamber top end of corresponding kettle body assembly (4) with three upper connecting heads (201) and three lower connecting heads (101) are matched and set, three upper connecting heads (201) are connected with blood inlet pipe (8), flush liquid outlet pipe (9) and exhaust pipe (10) in proper order.

2. A gravity fed intravenous infusion set according to claim 1 wherein: The step rotation frame (3) includes a lower disc body (301) rotationally arranged in the center of the top surface of the lower shell (1), and an upper disc body (302) rotationally arranged in the center of the bottom surface of the upper shell (2). The outer wall of the lower disc body (301) and the upper disc body (302) is fixedly embedded with a connecting rod (303).

3. A gravity fed intravenous solution set according to claim 2, wherein: The kettle body assembly (4) includes a liquid storage cylinder (401), a top cover (402) fixedly arranged at the top end of the liquid storage cylinder (401), and a bottom cover (403) fixedly arranged at the bottom end of the liquid storage cylinder (401). The top surface of the bottom cover (403) is detachably inserted with a filter screen (404).

4. A gravity fed intravenous infusion set according to claim 3 wherein: The bottom surface of the bottom cover (403) is provided with a lower insertion cylinder body, the bottom end of the lower insertion cylinder body penetrates the lower disc body (301) and movably connects to the top end of the lower connecting head (101). The top surface of the top cover (402) is provided with an upper insertion cylinder body, the top end of the upper insertion cylinder body penetrates the upper disc body (302) and movably connects to the bottom end of the upper connecting head (201).

5. A gravity fed intravenous infusion set according to claim 4, wherein: The bottom surface of the lower disc body (301) is provided with a lower boss outside the lower insertion cylinder body, and the top surface of the upper disc body (302) is provided with an upper boss outside the upper insertion cylinder body.

6. A gravity fed intravenous solution set according to claim 3, wherein: The top surface of the bottom cover (403) is provided with at least one insertion column (4031), and the bottom surface of the filter screen (404) is provided with an insertion slot (4041) matched with the insertion column (4031).

7. The intravenous hght according to claim 3, wherein: The top surface of the lower disc body (301) is provided with a lower embedding groove (3011), and the bottom cover (403) is embedded in the lower embedding groove (3011). The bottom surface of the upper disc body (302) is provided with an upper embedding groove, and the top cover (402) is embedded in the upper embedding groove.

8. A venous reservoir according to any one of claims 2 to 7, characterized in that: The top surface of the lower shell (1) is fixedly provided with a lower sealing gasket (11), and the bottom surface of the lower disc body (301) is in sliding contact with the top surface of the lower sealing gasket (11). The bottom surface of the upper shell (2) is fixedly provided with an upper sealing gasket (12), and the top surface of the upper disc body (302) is in sliding contact with the bottom surface of the upper sealing gasket (12). The lower sealing gasket (11) is provided with a lower through hole above the top end of the lower connecting head (101), and the upper sealing gasket (12) is provided with an upper through hole below the bottom end of the upper connecting head (201).

9. A gravity fed intravenous infusion set according to any one of claims 2 to 7, wherein: The exhaust pipe (10) is provided with a dustproof filter plug (13).

10. A gravity fed intravenous infusion set according to any one of claims 1 to 7, wherein: The top of the lower shell (1) is fixedly provided with an inserting wall (102) on both sides, and the bottom surface of the upper shell (2) is provided with an inserting groove (202), and the top end of the inserting wall (102) is detachably inserted into the inserting groove (202).

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