White blood filtering treatment system and treatment method

Abstract

The invention discloses a white blood filtering treatment system and method, the white blood filtering treatment system is provided with a white blood filtering frame, a clamping unit, an exhaust unit and a heat sealing unit, the clamping unit, the exhaust unit and the heat sealing unit are all arranged on the white blood filtering frame, when the white blood filtering work is carried out, the clamping unit clamps a bypass pipe, and the bypass pipe is clamped by the heat sealing unit; after all blood in the blood bag enters the collection bag through white filtering of the white filtering module, the clamping unit clamps the catheter, the exhaust unit exhausts gas in the collection bag, the heat sealing unit performs heat sealing on the catheter connected with the collection bag, and finally the catheter is pulled apart from a heat sealing point, so that the collection bag can be separated from the blood bag device. Through cooperation of the clamping unit, the exhaust unit and the heat sealing unit of the white blood filtering system, automatic exhaust and heat sealing of the white blood filtering system can be achieved, manpower needed by follow-up treatment of blood white blood filtering is reduced, and the treatment efficiency of white blood filtering is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood filtration, and in particular to a leukofiltrated blood processing system and a processing method. Background Art

[0002] Blood transfusion is an important rescue and treatment measure in clinical practice. It can save the patient's life, but it may also cause harm to the patient. Modern blood transfusion requires the removal of white blood cells to ensure the safety of blood transfusion. The leukocyte filtration of blood bags needs to be performed through a blood bag system that sets up blood bags and collection bags.

[0003] For example, the blood bag system disclosed in the patent document with announcement number CN202554575U includes a catheter, a blood introduction part, a filter, a clamping piece, a blood recovery bag, and a bypass flow path. The catheter is used for blood to pass through. The blood introduction part is arranged at the upper end of the catheter, and the blood recovery bag is arranged at the lower end of the above-mentioned catheter. The filter is installed on the catheter, which can remove white blood cells from the blood and filter the blood flowing from the blood introduction part to the blood recovery bag. The bypass flow path bypasses the filter and is connected to the catheter. The clamping piece is arranged on the catheter and the bypass flow path, and can block the catheter and the bypass flow path by clamping the catheter and the bypass flow path. Through the above settings of the blood bag system, before performing blood leukofiltration, the blood bag system is first suspended by the blood introduction part, and then the clamping piece clamps the bypass flow path. During leukofiltration, the blood in the blood introduction part flows into the catheter by gravity, and is leukofiltered by the filter when passing through the filter. After leukofiltration, the blood enters the blood recovery bag, and finally the leukofiltered blood is collected.

[0004] After the blood is filtered through the blood bag system, subsequent processing of the filtered blood is required. During the processing, the blood bag system must first be sent to an emptying device to empty the blood recovery bag to prevent the blood from being contaminated by air. After emptying, the blood bag system must be transferred to a heat sealing device, and the heat sealing device is used to further heat seal the catheter connected to the blood recovery bag to seal the blood recovery bag, and sampling is performed through heat sealing, so that the processing of the filtered blood requires a lot of manpower and the processing efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies, and to provide a leukofiltered blood processing system and method, so as to solve the technical problems in the prior art that the processing process of leukofiltered blood consumes a lot of manpower and has a low processing efficiency.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a leukofiltration blood treatment system, comprising a leukofiltration frame, the leukofiltration frame is used for hanging a blood bag device so that the blood bag device performs leukofiltration; the blood bag device comprises a blood bag, a catheter, a bypass tube, a leukofiltration module and a collection bag, the catheter connects the blood bag and the collection bag, the leukofiltration module is connected to the catheter, and is used to perform leukofiltration on the blood flowing therethrough, both ends of the bypass tube are connected to the catheter and are connected in parallel to the leukofiltration module, and the leukofiltration blood treatment system further comprises: A clamping unit, the clamping unit is used to clamp the conduit or the bypass pipe; an exhaust unit, the exhaust unit being used to exhaust the collecting bag; and A heat sealing unit is used to heat seal the catheter.

[0007] In some embodiments, the leukofiltration blood processing system further comprises a straightening unit, which is fixed to the leukofiltration frame and is used to straighten the catheter located at the lower side of the leukofiltration module.

[0008] In some embodiments, the straightening unit includes a winding drive and a winder, the winder is used to connect the catheter, and the winding drive is connected to the winder to drive the winder to rotate so that the winder straightens the catheter by winding the catheter.

[0009] In some embodiments, the winder is provided with a winding hole with one side open, and the winding hole is provided for the catheter to pass through.

[0010] In some embodiments, the leukofiltration blood processing system also includes a first gravity sensor, which is fixed to the leukofiltration frame and electrically connected to the winding drive member, and is used for suspending the collecting bag and measuring the gravity of the suspended collecting bag, so that the straightening unit stops operating when it senses that the gravity of the collecting bag has weakened.

[0011] In some embodiments, the heat sealing unit includes a segmented heat sealing drive and a heat sealer. The heat sealer is slidably connected to the white filter frame along the height direction of the frame. The segmented heat sealing drive is connected to the heat sealer and is used to drive the heat sealer to slide so that the heat sealer can perform multi-point heat sealing on the catheter.

[0012] In some embodiments, the white filter frame is provided with a hanger, and the hanger is used to hang the blood bag. The white filter blood processing system also includes a second gravity sensor, which is connected to the white filter frame and the hanger and is used to measure the gravity of the hanger. The exhaust unit is electrically connected to the second gravity sensor and is used to clamp the catheter or the bypass pipe according to the gravity measured by the second gravity sensor.

[0013] In a second aspect, the present invention further provides a leukofiltered blood processing method, which is performed by a leukofiltered blood processing system, comprising the following steps: The clamping unit clamps the conduit and releases the clamping of the bypass pipe; The exhaust unit discharges the gas in the collection bag; The heat sealing unit heat seals the collecting bag.

[0014] In some embodiments, after the exhaust unit exhausts the gas in the collection bag and before the heat sealing unit heat seals the collection bag, the straightening unit straightens the catheter located on the lower side of the white filter module, and during the straightening process, if the first gravity sensor senses a decrease in the gravity value, the controller controls the straightening unit to stop straightening the catheter.

[0015] In some embodiments, during the step of heat-sealing the collection bag by the heat-sealing unit, the segmented heat-sealing driving member drives the heat sealer to gradually rise, so that the heat-sealing is performed on multiple points of the catheter from bottom to top.

[0016] Compared with the prior art, the leukofiltration blood processing system and processing method provided by the present invention are characterized in that the leukofiltration blood processing system is provided with a leukofiltration frame, a clamping unit, an exhaust unit and a heat-sealing unit, and the clamping unit, the exhaust unit and the heat-sealing unit are all installed on the leukofiltration frame. When the blood is filtered, the clamping unit clamps the bypass tube to prevent the blood from bypassing the leukofiltration module and flowing out from the bypass tube into the collection bag. When all the blood in the blood bag passes through the leukofiltration module and enters the collection bag, due to the residual air inside the collection bag, the clamping unit clamps the catheter at this time, and the exhaust unit discharges the gas in the collection bag, and the gas passes through the bypass tube. The through tube passes out and enters the empty blood bag, thereby achieving the exhaust of the collection bag. After the exhaust of the collection bag is completed, the heat sealing unit will heat-seal the catheter connected to the collection bag to seal the collection bag. Finally, the catheter will be torn off from the heat-sealing point to separate the collection bag from the blood bag device. Through the cooperation of the clamping unit, the exhaust unit and the heat-sealing unit of the leukofiltration system, the automatic exhaust and heat-sealing of the leukofiltration system can be achieved, so that there is no need to transport the blood bag device separately to the exhaust device and the heat-sealing device for exhaust and heat-sealing, thereby reducing the manpower required for subsequent treatment of blood leukofiltration and improving the treatment efficiency of leukofiltration blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a leukofiltration blood processing system provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a clamping unit, an exhaust unit and a straightening unit of a leukofiltration blood processing system provided in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a leukofiltration clamping module or an exhaust clamping module of a leukofiltration blood processing system provided in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a heat sealing unit of a leukofiltration blood treatment system provided in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a heat-sealing module of a leukofiltration blood treatment system provided in an embodiment of the present invention; Figure 6 It is a flow chart of a leukofiltration blood processing system method provided by an embodiment of the present invention.

[0018] Reference numerals in the figures: 10—Frame 11—Suspension unit 12—Support unit 20—Clamping unit 21—Filter clamping module 22—Exhaust clamping module 30 - Exhaust unit 31 - Peristaltic pump 40 - Heat sealing unit 41—segmented heat sealing drive 42—heat sealing module 43—guide head 44 - Position sensor 50 - Straightening unit 51 - Winding drive 52—winder 60—first gravity sensor 211—clamping bracket 212—clamping frame 213—clamping drive 411—motor 412 - screw rod 421 - heat sealing fixing frame 422 - heat sealing driving part 423 - first heating block 424 - second heating block 425 - heat sealing gap 431—guide hole 521—winding hole 2111—extrusion groove 10a - blood bag device 11a - blood bag 12a - catheter 13a—white filter module 14a—collection bag 15a—bypass pipe 111a—Intake valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Modern blood transfusion requires the removal of white blood cells to ensure the safety of blood transfusion. White blood cells in the blood are generally removed by filtering, referred to as leukocyte filtration. After the blood is filtered, the existing blood collection bag exhaust and heat sealing need to be processed separately, which makes the blood processing process consume a lot of manpower and has low efficiency.

[0021] In order to solve the technical problems in the prior art that the processing process of filtered white blood consumes a lot of manpower and has low processing efficiency, the present invention provides a filtered white blood processing system and processing method, which can realize automatic venting and heat sealing of the collection bag after the collection bag collects the filtered white blood.

[0022] In order to achieve the above technical objectives, the embodiments of the present invention provide a leukofiltered blood processing system and a processing method.

[0023] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The leukofiltration blood processing system provided in an embodiment of the present invention includes a leukofiltration frame 10, and a clamping unit 20, an exhaust unit 30 and a heat sealing unit 40 installed on the leukofiltration frame 10. The clamping unit 20, the exhaust unit 30 and the heat sealing unit 40 are all installed on the leukofiltration frame 10. The clamping unit 20 is used to clamp the catheter 12a or the bypass tube 15a, the exhaust unit 30 is used to exhaust the collection bag 14a, and the heat sealing unit 40 is used to heat seal the catheter 12a.

[0024] In this embodiment, the white filter rack is used to supply the blood bag device 10a so that the blood bag device 10a can perform white filtration; the blood bag device 10a includes a blood bag 11a, a catheter 12a, a white filter module 13a, a collecting bag 14a and a bypass pipe 15a, the catheter 12a connects the blood bag 11a and the collecting bag 14a, the white filter module 13a is connected to the catheter 12a, and is used to filter the blood flowing through, both ends of the bypass pipe 15a are connected to the catheter and are connected in parallel to the white filter module 13a, and the bypass pipe 15a can be used for exhausting the collecting bag 14a.

[0025] Specifically, when the blood is filtered, the clamping unit 20 clamps the bypass tube 15a to prevent the blood from bypassing the filter module 13a and flowing out from the bypass tube 15a into the collection bag 14a. When all the blood in the blood bag 11a passes through the filter module 13a and enters the collection bag 14a, due to the residual air inside the collection bag 14a, the clamping unit 20 clamps the catheter 12a, and the exhaust unit 30 exhausts the gas in the collection bag 14a. The gas passes through the bypass tube 15a and enters the empty blood bag 11a, thereby exhausting the collection bag 14a and completing the collection bag. After the blood bag 14a is exhausted, the heat sealing unit 40 heat seals the catheter 12a connected to the collecting bag 14a to seal the collecting bag 14a. Finally, the catheter 12a is torn off from the heat sealing point to separate the collecting bag 14a from the blood bag device 10a. Through the cooperation of the clamping unit 20, the exhaust unit 30 and the heat sealing unit 40 of the leukofiltration system, the automatic exhaust and heat sealing of the leukofiltration system can be achieved, thereby eliminating the need to separately transport the blood bag device 10a to the exhaust device and the heat sealing device for exhaust and heat sealing, thereby reducing the manpower required for subsequent treatment of blood leukofiltration and improving the treatment efficiency of leukofiltration blood.

[0026] In this embodiment, the leukofiltration frame 10 is provided with a hanging unit 11 and a supporting unit 12. The hanging unit 11 is installed at the top of the leukofiltration frame 10 and is used to hang the blood bag 11a. The supporting unit 12 is installed at the bottom of the leukofiltration frame 10 and is used to support the collecting bag 14a. During leukofiltration, the blood bag 11a is hung on the hanging unit 11, and the collecting bag 14a is placed on the supporting unit 12. Then, the air inlet valve 111a on the blood bag 11a is broken to allow gas to enter the blood bag 11a, so that the blood can enter the catheter 12a from the blood bag 11a, and then flow through the leukofiltration module 13a, and then flow into the collecting bag 14a after leukofiltration by the leukofiltration module 13a. The blood filtered by the collecting bag 14a is collected, and blood leukofiltration can be achieved.

[0027] It can be understood that the clamping unit 20 can be a robot installed on the filter frame 10. The robot clamps the bypass pipe 15a when performing the filtering operation, and clamps the conduit 12a above the filter module 13a when performing the exhaust operation of the collection bag 14a.

[0028] In one embodiment, if Figure 1 and 2 As shown, the clamping unit 20 includes a white filter clamping module 21 and an exhaust clamping module 22 of the same structure. Specifically, when performing white filter work, the white filter clamping module 21 clamps the bypass pipe 15a, and when performing exhaust work, the exhaust clamping module 22 clamps the conduit 12a above the white filter module 13a.

[0029] In this embodiment, Figure 1 and 2As shown, the white filter clamping module 21 and the exhaust clamping module 22 both include a clamping frame 211, a clamping frame 212 and a clamping drive 213. The clamping frame 211 is fixedly connected to the white filter frame 10, and the clamping frame 212 is opposite to the clamping frame 211. The clamping drive 213 is connected to the clamping frame 212 and is used to drive the clamping frame 212 to move toward or away from the clamping frame 211. Specifically, the filter clamping module 21 and the exhaust clamping module 22 are arranged so that when the blood bag device 10a is suspended, the conduit 12a of the blood bag device 10a located above the filter module 13a is placed between the clamping frame 211 and the clamping frame 212 of the exhaust clamping module 22, and the bypass pipe 15a is placed between the clamping frame 211 and the clamping frame 212 of the filter clamping module 21. When the filter operation is performed, the clamping drive 213 of the filter clamping module 21 drives the clamping frame 212 to move toward the clamping frame 211, pressing the bypass pipe 15a against the clamping frame 212. The fixing frame 211 isolates the bypass pipe 15a to prevent blood from passing through the bypass pipe 15a. When the exhaust operation is performed, the clamping drive 213 of the filter clamping module 21 drives the clamping frame 212 to move away from the clamping fixing frame 211 to loosen the bypass pipe 15a. The clamping drive 213 of the exhaust clamping module 22 drives the clamping frame 212 to move toward the clamping fixing frame 211, so that the clamping frame 212 presses the catheter 12a against the clamping fixing frame 211, thereby isolating the catheter 12a, so that the air discharged from the collection bag 14a will pass through the bypass pipe 15a.

[0030] In this embodiment, Figure 1 and 2 As shown, an extrusion groove 2111 is provided on one side of the clamping frame 211 close to the clamping frame 212. The clamping frame 212 can press the conduit 12a or the bypass pipe 15a into the extrusion groove 2111 by moving toward the clamping frame 211, thereby effectively isolating the conduit 12a or the bypass pipe 15a.

[0031] In this embodiment, the clamping driving member 213 is a cylinder.

[0032] In one embodiment, the leukofiltration blood processing system further includes a second gravity sensor, which is connected to the leukofiltration frame 10 and the suspension unit 11, and is used to measure the gravity of the suspension unit 11. The exhaust unit 30 is electrically connected to the second gravity sensor, and is used to clamp the catheter 12a or the bypass pipe 15a according to the gravity measured by the second gravity sensor. Specifically, the exhaust unit 30 is electrically connected to the second gravity sensor, and when the gravity sensed by the second gravity sensor is lower than a certain value, the controller controls the exhaust unit 30 to exhaust the collection bag 14a, and when the gravity value sensed by the second gravity sensor increases during the exhaust process of the collection bag 14a, the controller controls the exhaust unit 30 to stop exhausting the collection bag 14a. Specifically, during the white filtering operation, the gravity of the blood bag 11a gradually decreases. When the gravity of the blood bag 11a decreases to a certain value, it means that the blood inside the blood bag 11a has been completely emptied. At this time, the exhaust unit 30 starts and starts to exhaust the collecting bag 14a. When the gravity value sensed by the second gravity sensor increases, it means that some blood has entered the conduit 12a on the upper side of the filtration module, which means that all the air in the collecting bag 14a has been exhausted. Therefore, through the electrical connection with the second gravity sensor, the collecting bag 14a can be automatically exhausted, which facilitates the exhaust operation of the collecting bag 14a, improves the exhaust efficiency of the collecting bag 14a, and thus speeds up the processing efficiency of the blood after white filtering.

[0033] In this embodiment, after the exhaust unit 30 completes the exhaust of the collection bag 14a, the white filter clamping module 21 and the exhaust clamping module 22 clamp the catheter 12a and the bypass tube 15a at the same time to prevent blood reflux.

[0034] In this embodiment, the exhaust unit 30 not only exhausts the collection bag 14a after the white filtration operation is completed, but also can exhaust the collection bag 14a at a fixed time during the white filtration operation to improve the white filtration efficiency of the blood.

[0035] It can be understood that the exhaust unit 30 can be a driver and a pressure plate. The driver can exhaust the collection bag 14a by driving the pressure plate to press the collection bag 14a toward the collection bag 14a, thereby squeezing the gas in the collection bag 14a out of the collection bag 14a.

[0036] In one embodiment, the exhaust unit 30 includes a peristaltic pump 31, which is electrically connected to the second gravity sensor. The peristaltic pump 31 includes an upper cover, a shell, a driver, a chuck and a fixed block; the upper cover is provided with an opening, and the upper cover is arranged above the shell. There are at least three drivers, and the drivers are all arranged in the shell. Each driver is respectively provided with a push rod, and the driver can drive the push rod to move downward or upward, and the push rod passes through the shell and extends into the interior of the upper cover; the number of chucks and fixed blocks is the same as the number of drivers, and the chucks are respectively fixed on the push rods, and the fixed blocks are arranged in the upper cover and fixedly connected to the shell, and the chucks are pressed against the fixed blocks when they move downward. When the collecting bag 14a is being vented, the elastic conduit 12a is passed through the opening of the upper cover, and the conduit 12a is located between the chuck and the fixed block. When the driver drives the push rod to retract downward, the push rod drives the chuck to press the conduit 12a against the fixed block, and the conduit 12a is pressed and deformed. Since the volume of the deformed part is reduced, the blood or liquid medicine inside the deformed part of the conduit 12a is squeezed to both ends; if one end of the conduit 12a is in a cut-off state at this time, since the resistance of the air flowing in this direction is large, the air in the deformed part of the conduit 12a will flow in the direction of the other end; when the driver drives the push rod to extend upward, the push rod drives the chuck to loosen, and the conduit 12a returns to its original state under the action of its own elasticity. At this time, the space inside the conduit 12a becomes larger, forming a negative pressure, and then the conduit 12a in the collecting bag 14a is sucked into the conduit 12a. After the air is sucked into the conduit 12a, it will bypass the leukoplastic filter module 13a from the bypass pipe 15a, and enter the conduit 12a above the leukoplastic filter module 13a, and finally enter the blood bag 11a.

[0037] In one embodiment, if Figure 1 and 5 As shown, the leukofiltration blood processing system further includes a straightening unit 50, which is fixed to the leukofiltration frame 10 and is used to straighten the conduit located at the lower side of the leukofiltration module 13a. Specifically, since the lengths of the conduits 12a of the blood bag devices 10a are different, the conduits of some blood bag devices 10a located at the lower side of the leukofiltration module 13a are in a bent state. Therefore, before the heat sealing unit 40 performs heat sealing, the straightening unit 50 straightens the conduits 12a in a bent state, thereby facilitating the heat sealing unit 40 to heat seal the conduits 12a.

[0038] In this embodiment, after the collection bag 14a is exhausted, the straightening unit 50 is started, and after the catheter on the lower side of the leukofiltration module 13a is straightened, the heat sealing unit 40 is started to heat seal the catheter 12a, thereby achieving automatic heat sealing of the catheter 12a, effectively reducing the manpower required for heat sealing of the catheter 12a, and improving the heat sealing efficiency of the catheter 12a, thereby accelerating the processing of the blood after leukofiltration.

[0039] It can be understood that the straightening unit 50 can clamp the catheter on the lower side of the white filter module 13a through a robot, and then pull the catheter 12a by sliding or rotating the robot upward to achieve straightening of the catheter 12a.

[0040] In one embodiment, if Figure 1 and 5 As shown, the straightening unit 50 includes a winding drive 51 and a winder 52. The winder 52 is used to connect the catheter 12a. The winding drive 51 is connected to the winder 52 and is used to drive the winder 52 to rotate so that the winder 52 winds the catheter 12a and straightens the catheter 12a. Specifically, when the catheter 12a is straightened, the winding drive 51 drives the winder 52 to rotate so that the winder 52 drives the catheter 12a to be wound around the winder 52, thereby achieving the straightening of the catheter on the lower side of the white filter module 13a.

[0041] In one embodiment, if Figure 1 and 5 As shown, the winder 52 is provided with a winding hole 521 with an opening on one side. When the blood bag device 10a is suspended, the catheter of the blood bag device 10a located at the lower side of the leukofiltration module 13a enters the winding hole 521 through the side opening of the winding hole 521, so that during the rotation of the winder 52, the catheter 12a can be driven to be wound, thereby achieving the straightening of the catheter 12a.

[0042] In one embodiment, the leukofiltration blood processing system further includes a first gravity sensor 60, which is fixed to the leukofiltration frame 10 and electrically connected to the winding drive 51, and is used for the collection bag 14a to be suspended, and to measure the gravity of the suspended collection bag 14a, so as to stop the straightening unit 50 from running when the gravity of the collection bag 14a is sensed to be weakened. Specifically, the straightening unit 50 is electrically connected to the first gravity sensor 60. During the straightening process of the catheter on the lower side of the leukofiltration module 13a, if the first gravity sensor 60 senses a decrease in gravity value, the controller controls the straightening unit 50 to stop straightening the catheter 12a. If the first gravity sensor 60 senses a decrease in gravity value during the straightening process of the catheter on the lower side of the leukofiltration module 13a, it means that the catheter 12a has generated a pulling force on the collection bag 14a, indicating that the catheter 12a is in a straightened state. At this time, the heat sealing unit 40 is started to heat seal the straightened catheter 12a.

[0043] In this embodiment, the winding driving component 51 is a motor, and the winding driving component 51 is electrically connected to the first gravity sensor 60 .

[0044] The heat sealing unit 40 includes a segmented heat sealing drive 41 and a heat sealing module 42. The heat sealing module 42 is slidably connected to the white filter frame 10 along the height direction of the white filter frame 10. The segmented heat sealing drive 41 is connected to the heat sealing module 42 and is used to drive the heat sealing module 42 to slide so that the heat sealing module 42 can perform multi-point heat sealing on the conduit 12a. Specifically, when performing the heat sealing work on the catheter on the lower side of the leukofiltration module 13a, the heat sealing module 42 can be driven by the segmented heat sealing drive component 41 to heat seal multiple points of the catheter 12a from bottom to top. After completing the heat sealing of each point of the catheter 12a, the catheter 12a can be disconnected through each heat sealing point. After the heat sealing point close to the collection bag 14a is disconnected, the collection bag 14a is sealed. After the other heat sealing points are disconnected, the catheter 12a can be divided into several sections of sub-tubes containing filtered blood. The blood in each sub-tube can be used as a sample for subsequent testing of the filtered blood. Therefore, through the automatic segmented heat sealing of the heat sealing unit 40, multi-segment sampling of the filtered blood can be achieved while sealing the collection bag 14a, which provides convenience for subsequent processing of the filtered blood.

[0045] It can be understood that the segmented heat sealing driving member 41 can be any driving component such as a cylinder, a hydraulic cylinder, etc. that can drive the heat sealing module 42 to rise and fall.

[0046] In one embodiment, if Figure 1 and 3 As shown, the segmented heat-sealing drive member 41 includes a motor 411 and a screw 412. The screw 412 is rotatably connected to the white filter frame 10 and extends in the height direction of the white filter frame 10. The motor 411 fixes the white filter frame 10 and is connected to the screw 412, and is used to drive the screw 412 to rotate. The heat-sealing module 42 is threadedly connected to the screw 412 through a screw nut. Specifically, when performing segmented heat-sealing of the lower conduit 12a of the white filter module 13a, the heat-sealing module 42 first heat-seals the heat-sealing point close to the collection bag 14a. After completing the heat-sealing of this point, the motor 411 drives the screw 412 to rotate, which can drive the screw 412 of the heat-sealing module 42 to move upward, and then the heat-sealing module 42 heat-seals the adjacent heat-sealing points above until all the heat-sealing points are completed.

[0047] In one embodiment, if Figure 1 and 3As shown in Figure 4, the heat-sealing module 42 includes a heat-sealing fixing frame 421, a heat-sealing driving member 422, a first heat supply block 423 and a second heat supply block 424. The first heat supply block 423 is fixed to the heat-sealing fixing frame 421. The second heat supply block 424 is arranged opposite to the first heat supply block 423 and forms a heat-sealing gap 425 with the first heat supply block 423. The heat-sealing driving member 422 is connected to the second heat supply block 424 and is used to drive the second heat supply block 424 to move toward or away from the first heat supply block 423. Specifically, when the blood bag device 10a is suspended, the catheter located at the lower side of the white filter module 13a is placed between the heat-sealing gaps 425. When the catheter 12a is heat-sealed, the heat-sealing driving member 422 drives the second heat supply block 424 to move toward the first heat supply block 423, so that the first heat supply block 423 and the second heat supply block 424 respectively heat-seal the catheter 12a on both sides of the catheter 12a, and finally complete the heat-sealing of the catheter 12a.

[0048] In one embodiment, if Figure 1 and 3 As shown in Figure 4, the heat sealing unit 40 further includes a guide head 43, which is fixed to the heat sealing fixing frame 421 and is located at the upper and lower sides of the heat sealing module 42. The guide head 43 is provided with a guide hole 431 with one side opening, and the guide hole 431 is colinear with the heat sealing gap 425 for the conduit 12a to pass through. Specifically, the guide head 43 can provide guidance for the conduit 12a, and during the heat sealing work, limit the conduit 12a at the upper and lower sides of the heat sealing point of the conduit 12a, thereby improving the heat sealing quality of the conduit 12a.

[0049] In one embodiment, if Figure 1 and 3 As shown in Figure 4, the heat sealing unit 40 further includes a position sensor 44, which is fixed to the heat sealing fixing frame 421 and electrically connected to the motor 411. Specifically, since the heat sealing unit 40 mainly performs heat sealing on the conduit 12a from bottom to top, after the exhaust of the collection bag 14a is completed, the motor 411 drives the heat sealing module 42 to descend, so that when the position sensor 44 senses the marked heat sealing position of the conduit 12a, the motor 411 stops driving the heat sealing module 42, and the heat sealing module 42 starts to heat seal the conduit 12a from bottom to top.

[0050] In one embodiment, the white filter system further includes a drying unit (not shown in the figure), which is used to dry the surface of the conduit 12a before the heat sealing unit 40 performs the heat sealing operation on the conduit 12a. Specifically, since the temperature of the blood inside the blood bag 11a is relatively low when the blood bag 11a is taken out of the cold storage, the outer wall of the conduit is easily condensed to form water droplets. Therefore, in order to facilitate the heat sealing of the conduit 12a by the heat sealing unit 40, the conduit 12a is dried by the drying unit before the heat sealing unit 40 performs the heat sealing operation on the conduit 12a, which can facilitate the heat sealing of the heat sealing unit 40, thereby eliminating the need to wipe the outer wall of the conduit 12a before heat sealing, thereby facilitating the heat sealing operation of the conduit 12a.

[0051] The embodiment of the present invention further provides a leukofiltered blood processing method, which is performed by a leukofiltered blood processing system and includes the following steps: The clamping unit 20 clamps the conduit 12a and releases the clamping of the bypass pipe 15a; The exhaust unit 30 exhausts the gas in the collection bag 14a; The heat-sealing unit 40 heat-seals the collecting bag 14a.

[0052] Specifically, the automatic exhaust of the exhaust unit 30 and the automatic heat sealing of the heat sealing unit 40 can effectively reduce the manpower required for the blood treatment process after leukofiltration and improve the efficiency of the blood treatment after leukofiltration.

[0053] In one embodiment, in the step of the exhaust unit 30 exhausting the collection bag 14a, when the gravity sensed by the second gravity sensor is lower than a certain value, the clamping unit 20 clamps the conduit 12a and releases the clamping of the bypass pipe 15a, and the controller controls the exhaust unit 30 to exhaust the collection bag 14a. When the gravity value sensed by the second gravity sensor increases during the exhaust of the collection bag 14a, the controller controls the exhaust unit 30 to stop exhausting the collection bag 14a, so as to realize automatic exhaust of the collection bag 14a.

[0054] In one embodiment, after the exhaust unit 30 exhausts the gas in the collection bag 14a and before the heat sealing unit 40 heat seals the collection bag 14a, the straightening unit 50 straightens the conduit located at the lower side of the white filter module 13a, and during the straightening process, if the first gravity sensor 60 senses a decrease in the gravity value, the controller controls the straightening unit 50 to stop straightening the conduit 12a. The straightening unit 50 automatically straightens the conduit, which facilitates the heat sealing of the heat sealing unit 40.

[0055] In one embodiment, before the heat sealing unit 40 performs the step of heat sealing the collecting bag 14 a , the drying unit dries the conduit between the collecting bag 14 a and the white filter module 13 a to facilitate the heat sealing of the heat sealing unit 40 .

[0056] In one of the embodiments, during the step of heat sealing the collection bag 14a by the heat sealing unit 40, the segmented heat sealing drive 41 drives the heat sealing module 42 to gradually rise, so that the heat sealing is performed on multiple points of the catheter 12a from bottom to top, thereby achieving segmented heat sealing of the catheter 12a at the lower side of the leukofiltration module 13a, thereby facilitating the sampling and detection of blood after leukofiltration.

[0057] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail: After completing the white filtration of the blood, the filtered blood is subsequently processed. During the processing, when the gravity sensed by the first gravity sensor module is lower than a certain value, the exhaust clamping module 22 of the exhaust unit 30 clamps the catheter 12a, and the white filtration clamping module 21 releases the clamping of the bypass pipe 15a. The controller controls the peristaltic pump 31 to exhaust the collection bag 14a. When the gravity value sensed by the first gravity sensor module increases during the exhaust of the collection bag 14a, the exhaust of the collection bag 14a is completed. At this time, the winding drive 51 of the straightening unit 50 drives the winder 52 to rotate, so as to straighten the catheter located at the lower side of the white filtration module 13a. The first gravity sensor 60 senses that the gravity value decreases and the catheter 12a is straightened. At this time, the controller controls the winding drive 51 to stop winding. After the winding drive 51 stops, the segmented heat sealing drive 41 drives the heat sealing module 42 to gradually rise, so that the heat sealing is performed on multiple points of the catheter 12a from bottom to top, thereby realizing segmented heat sealing of the catheter 12a under the leukofiltration module 13a, facilitating the sampling and detection of the blood after leukofiltration. The automatic exhaust of the collection bag 14a by the exhaust unit 30 and the heat sealing of the catheter 12a by the heat sealing unit 40 can realize automatic exhaust and heat sealing of the blood after leukofiltration, thereby reducing the manpower required for the blood processing process and accelerating the blood processing efficiency.

[0058] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A leukofiltration blood treatment system, comprising a leukofiltration rack, the leukofiltration rack is used for hanging a blood bag device so that the blood bag device performs leukofiltration; the blood bag device comprises a blood bag, a catheter, a bypass tube, a leukofiltration module and a collection bag, the catheter connects the blood bag and the collection bag, the leukofiltration module is connected to the catheter and is used to perform leukofiltration on the blood flowing through, both ends of the bypass tube are connected to the catheter and are connected in parallel to the leukofiltration module, characterized in that: Also included is a device installed on the filter frame: A clamping unit, the clamping unit is used to clamp the conduit or the bypass pipe; an exhaust unit, the exhaust unit being used to exhaust the collecting bag; and A heat sealing unit is used to heat seal the catheter.

2. The leukofiltration blood treatment system according to claim 1, characterized in that: The leukofiltration blood processing system further comprises a straightening unit, which is fixed to the leukofiltration frame and is used for straightening the catheter located at the lower side of the leukofiltration module.

3. The leukofiltration blood processing system according to claim 2, characterized in that: The straightening unit comprises a winding drive and a winder, wherein the winder is used to connect the catheter, and the winding drive is connected to the winder and is used to drive the winder to rotate so that the winder straightens the catheter by winding the catheter.

4. The leukofiltration blood processing system according to claim 3, characterized in that: The reel is provided with a reeling hole with one side open, and the reeling hole is provided for the catheter to pass through.

5. The leukofiltration blood processing system according to claim 3, characterized in that: The leukofiltration blood processing system also includes a first gravity sensor, which is fixed to the leukofiltration frame and electrically connected to the winding drive component, and is used for hanging the collecting bag and measuring the gravity of the suspended collecting bag, so that the straightening unit stops operating when it senses that the gravity of the collecting bag has weakened.

6. The leukofiltration blood processing system according to any one of claims 1 to 5, characterized in that: The heat sealing unit includes a segmented heat sealing drive and a heat sealer. The heat sealer is slidably connected to the white filter frame along the height direction of the frame. The segmented heat sealing drive is connected to the heat sealer and is used to drive the heat sealer to slide so that the heat sealer can perform multi-point heat sealing on the catheter.

7. The leukofiltration blood processing system according to any one of claims 1 to 5, characterized in that: The white filter frame is provided with a hanger, and the hanger is used to hang the blood bag. The white filter blood processing system also includes a second gravity sensor, which is connected to the white filter frame and the hanger and is used to measure the gravity of the hanger. The exhaust unit is electrically connected to the second gravity sensor and is used to clamp the catheter or the bypass pipe according to the gravity measured by the second gravity sensor.

8. A method for treating leukofiltrated blood, characterized in that: The method is performed by the leukofiltration blood processing system according to any one of claims 1 to 7, comprising the following steps: The clamping unit clamps the conduit and releases the clamping of the bypass pipe; The exhaust unit discharges the gas in the collection bag; The heat sealing unit heat seals the collecting bag.

9. The leukofiltered blood processing method according to claim 8, characterized in that: After the exhaust unit exhausts the gas in the collection bag and before the heat sealing unit heat seals the collection bag, the straightening unit straightens the catheter located on the lower side of the white filter module, and during the straightening process, if the first gravity sensor senses a decrease in the gravity value, the controller controls the straightening unit to stop straightening the catheter.

10. The leukofiltered blood processing method according to claim 8, characterized in that: In the step of heat-sealing the collection bag by the heat-sealing unit, the segmented heat-sealing driving member drives the heat sealer to gradually rise, so that the heat-sealing is performed on multiple points of the catheter from bottom to top.

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