Stem cell collecting device

Abstract

The invention belongs to the technical field of medical instruments, and provides a stem cell collecting device which comprises a base, a supporting frame, a rotating mechanism and a motor. The lower end of the supporting frame is connected with the base, the slewing mechanism is rotationally arranged on the base, the motor is arranged at the upper end of the supporting frame, the output end of the motor is connected with the upper end of the slewing mechanism, the motor can drive the slewing mechanism to rotate, and the upper portion of the slewing mechanism can fix the umbilical cord and enable the umbilical cord to be in a vertical state. A blood collection bag can be fixed to the lower portion of the swing mechanism. The umbilical cord and the blood taking bag are fixed through the rotating mechanism, the umbilical cord is in the vertical state, the blood taking bag and the lower end of the umbilical cord are communicated through the blood taking needle, blood in the umbilical cord is gathered downwards under the gravity effect and then flows into the blood taking bag through the blood taking needle, on one hand, the blood flowing speed can be increased, and the blood taking efficiency is improved; on the other hand, blood in the umbilical cord can be conveyed into the blood collection bag as much as possible, the blood collection amount is increased, and the utilization rate of the blood in the umbilical cord is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a stem cell collection device. BACKGROUND

[0002] Umbilical cord blood contains hematopoietic stem cells that can reconstitute the hematopoietic and immune systems of the human body, and can be used for hematopoietic stem cell transplantation to treat various diseases. Therefore, umbilical cord blood has become an important source of hematopoietic stem cells.

[0003] In the prior art, after the end of the umbilical cord is separated from the baby, it is knotted, and then a blood collection needle is used to puncture the umbilical cord to guide the blood into a blood collection bag. In practice, it is found that the pressure in the umbilical cord is low, the blood flows into the blood collection bag through the blood collection needle at a slow speed, the efficiency is low, and there is a lot of residual blood in the umbilical cord after blood collection, which has a low utilization rate. In addition, the blood collection bag needs to be shaken during the blood collection process to mix the blood with the anticoagulant in the blood collection bag, which is inconvenient. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application provides a stem cell collection device, thereby solving or at least alleviating one or more of the above-mentioned problems in the prior art and other aspects.

[0005] The present application provides a stem cell collection device, comprising:

[0006] a base;

[0007] a support frame, the lower end of the support frame being connected to the base;

[0008] a rotating mechanism, the rotating mechanism being rotatably arranged on the base; and

[0009] a motor, the motor being arranged at the upper end of the support frame, the output end of the motor being connected to the upper end of the rotating mechanism;

[0010] The upper part of the rotating mechanism can fix the umbilical cord and make the umbilical cord in a vertical state; the lower part of the rotating mechanism can fix the blood collection bag.

[0011] Preferably, the rotating mechanism comprises:

[0012] a rotating column, the upper end of the rotating column being connected to the output end of the motor and being rotatable driven by the motor, a first cavity extending along the length direction of the rotating column being formed in the rotating column;

[0013] an air bag, the air bag being connected to the outer wall of the rotating column, the air bag extending along the length direction of the rotating column, the air bag being in communication with the first cavity;

[0014] a pressing assembly for pressing the umbilical cord in the vertical state against the air bag; and

[0015] a gas control assembly for inflating or exhausting gas into or out of the first cavity by rotation of the rotating column.

[0016] Preferably, the pressing assembly comprises:

[0017] a first arc-shaped plate, a lower end of which is hinged to the rotating column, the first arc-shaped plate extending along the length direction of the rotating column, and a first needle inlet extending along the length direction of the first arc-shaped plate being formed in the first arc-shaped plate;

[0018] a second arc-shaped plate, an outer wall of which is in sliding fit with an inner wall of the first arc-shaped plate, a second needle inlet extending along the length direction of the second arc-shaped plate being formed in the second arc-shaped plate, and the second needle inlet partially or wholly coinciding with the first needle inlet, and the inner wall of the second arc-shaped plate being in contact with the outer wall of the air bag;

[0019] a receiving basin connected to an upper end of the second arc-shaped plate, the receiving basin being used for placing the placenta connected with the umbilical cord; and

[0020] an elastic binding belt, which is sleeved outside the rotating column, the first arc-shaped plate and the second arc-shaped plate, and is used for binding the first arc-shaped plate or the second arc-shaped plate and the rotating column together.

[0021] Preferably, the rotating mechanism further comprises:

[0022] a mounting ring, an upper end of which is connected to a lower end of the rotating column, and a lower end of which is in rotating connection with the base;

[0023] a clamping assembly, which is arranged on the inner wall of the upper end of the mounting ring, and is used for clamping the interface of the blood collection bag;

[0024] suction discs, which are symmetrically arranged in two, and are transversely slidably arranged in the mounting ring, and can be attached to the outer wall of the blood collection bag from both sides;

[0025] a linkage assembly, which drives the two suction discs to approach or move away from each other by rotation of the rotating column.

[0026] Preferably, a connecting pipe is connected to the lower end of the mounting ring, a connecting column is connected to the upper end of the base, the inner wall of the connecting pipe is in screw connection with the outer wall of the connecting column, and a first square hole penetrating in the vertical direction is formed in the lower end of the mounting ring, and the first square hole is in communication with the connecting pipe.

[0027] the linkage assembly comprises:

[0028] a first square rod, a lower end of the first square rod being rotatably connected with an upper end of the connecting column after passing through the first square hole;

[0029] a cross rod, a middle part of the cross rod being connected with an upper end of the first square rod;

[0030] a support arm, two support arms being symmetrically arranged, the two support arms being slidably connected with the mounting ring, and end parts of the support arms being connected with corresponding suction discs; and

[0031] a connecting rod, two connecting rods being symmetrically arranged, lower ends of the two connecting rods being hingedly connected with two ends of the cross rod, and upper ends of the two connecting rods being hingedly connected with corresponding support arms.

[0032] Preferably, the air control assembly comprises:

[0033] a driving column, a lower end of the driving column being fixedly connected with an upper end of the rotating column, a second cavity being formed in the driving column along an axial direction of the driving column, a second square hole being formed in an upper end of the driving column, and an air inlet being formed in a sidewall of a lower end of the driving column;

[0034] an air pipe, an upper end of the air pipe being in communication with an upper end of the second cavity, and a lower end of the air pipe being in communication with the first cavity;

[0035] a piston, the piston being slidably arranged in the second cavity along the axial direction of the driving column, and an outer wall of the piston being in dynamic sealing with an inner wall of the second cavity; and

[0036] a second square rod, an upper end of the second square rod being connected with an output end of the motor, and a lower end of the second square rod being fixedly connected with the piston after passing through the second square hole.

[0037] Preferably, a third square hole is formed in the mounting ring at a position corresponding to the support arm;

[0038] the support arm comprises:

[0039] a first square tube, an outer wall of the first square tube being slidably matched with the third square hole, and a limiting window being formed in a sidewall of the first square tube along a length direction of the first square tube;

[0040] a second square tube, one end of the second square tube being connected with the suction disc, and the other end of the second square tube being slidably matched with an inner wall of the first square tube;

[0041] a limiting block, the limiting block being connected with an outer wall of the second square tube, and the limiting block being slidably matched with the limiting window along the length direction of the first square tube;

[0042] The first limiting ring, the inner ring of the first limiting ring is connected to the outer wall of the end of the first square tube near the suction cup;

[0043] The second limiting ring, the inner ring of which is connected to the outer wall of the second square tube; and

[0044] A first spring is sleeved on the outside of the first square tube and the second square tube, and the two ends of the first spring abut against the first limiting ring and the second limiting ring, respectively.

[0045] Preferably, the clamping assembly includes:

[0046] The first clamping block has its upper end rotatably connected to the upper inner wall of the mounting ring. The first clamping block has two locking holes that extend horizontally through it, and a first clamping groove is provided on it.

[0047] The locking rod has two rods, one end of which is connected to a stop block, and the other end of which passes through the corresponding locking hole.

[0048] A second clamping block is connected to the ends of the two locking rods away from the stop block. The side of the second clamping block facing the first clamping block has a second clamping groove, which engages with the first clamping groove to clamp the interface of the blood collection bag.

[0049] The second spring, which consists of two springs, is respectively sleeved on the two locking rods, with its two ends abutting against the stop block and the first clamping block, respectively.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] In this invention, a rotating mechanism fixes the umbilical cord and blood collection bag, positioning the umbilical cord vertically. A blood collection needle connects the lower end of the blood collection bag and the umbilical cord. Under gravity, the blood in the umbilical cord gathers downwards and flows through the needle into the blood collection bag. This accelerates blood flow and improves collection efficiency, while also maximizing the amount of blood collected and increasing the utilization rate of the umbilical cord blood. Attached Figure Description

[0052] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0053] Figure 1 This is a perspective view of a stem cell collection device according to an embodiment of the present invention;

[0054] Figure 2 for Figure 1 3D view of the central rotary mechanism (clamping components unfolded);

[0055] Figure 3 for Figure 2 3D view of the medium-voltage component;

[0056] Figure 4 for Figure 2 A 3D view of the clamping component;

[0057] Figure 5 for Figure 2 3D view of the installation ring in the middle;

[0058] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0059] Figure 7 for Figure 5 A sectional view;

[0060] Figure 8 for Figure 2 A 3D view of the central rotating column and the pneumatic control components in action;

[0061] Figure 9 for Figure 8 Enlarged view of point B.

[0062] Figure label:

[0063] 10. Base; 11. Connecting column;

[0064] 20. Support frame;

[0065] 30, rotating mechanism; 31, rotating column; 311, first cavity; 32, air bag; 33, pressing assembly; 331, first arc plate; 332, first needle inlet; 333, second arc plate; 334, second needle inlet; 335, receiving basin; 336, elastic binding belt; 34, air control assembly; 341, driving column; 342, second cavity; 343, second square hole; 344, air inlet hole; 345, air pipe; 346, piston; 347, second square rod; 35, mounting ring; 351, first square hole; 352, third square hole; 36, clamping assembly; 361, first clamping block; 362, first clamping groove; 363, locking hole; 364, locking rod; 365, second clamping block; 366, second clamping groove; 367, second spring; 37, suction cup; 38, linkage assembly; 381, first square rod; 382, cross rod; 383, support arm; 383a, first square tube; 383b, limiting window; 383c, second square tube; 383d, limiting block; 383e, first limiting ring; 383f, second limiting ring; 383g, first spring; 384, connecting rod;

[0066] 40, motor;

[0067] 50, blood collection bag;

[0068] 60, connecting pipe. DETAILED DESCRIPTION

[0069] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore can only be used as examples, but cannot limit the protection scope of the present application.

[0070] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled in the art to which the present application belongs.

[0071] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0072] In addition, the terms "first", "second", and the like are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or an indicated number thereof. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0073] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0074] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "on", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0075] Referring to Figures 1 to 9 The present embodiment provides a stem cell collection device, comprising a base 10, a support frame 20, a rotary mechanism 30 and a motor 40.

[0076] The lower end of the support frame 20 is connected with the base 10, and the rotary mechanism 30 is rotatably arranged on the base 10. The motor 40 is arranged at the upper end of the support frame 20, and the output end of the motor 40 is connected with the upper end of the rotary mechanism 30. The motor 40 can drive the rotary mechanism 30 to rotate. The upper part of the rotary mechanism 30 can fix the umbilical cord and make the umbilical cord in a vertical state; the lower part of the rotary mechanism 30 can fix the blood collection bag 50.

[0077] In the embodiment, the umbilical cord and the blood collection bag 50 are fixed by the rotating mechanism 30 respectively, and the umbilical cord is in a vertical state. The blood collection needle is used to connect the blood collection bag 50 and the lower end of the umbilical cord. The blood in the umbilical cord is gathered downward under the action of gravity and then flows into the blood collection bag 50 through the blood collection needle. On the one hand, the blood flow rate can be accelerated, and the blood collection efficiency can be improved. On the other hand, as much blood as possible in the umbilical cord can be transported into the blood collection bag 50, and the utilization rate of the blood in the umbilical cord can be improved. The rotating mechanism 30 rotates to drive the blood collection bag 50 on it to rotate, so that the blood and the anticoagulant in the blood collection bag 50 are mixed more fully. The traditional manual shaking of the blood collection bag 50 is eliminated, and the convenience is improved.

[0078] In one embodiment, the rotating mechanism 30 includes a rotating column 31, an air bag 32, a pressing assembly 33, and a gas control assembly 34.

[0079] The upper end of the rotating column 31 is connected with the output end of the motor 40 and can be driven to rotate by the motor 40. A first cavity 311 extending along the length direction of the rotating column 31 is formed in the rotating column 31. Specifically, the rotating column 31 is indirectly connected with the output end of the motor 40. The air bag 32 is connected with the outer wall of the rotating column 31 and extends along the length direction of the rotating column 31. The air bag 32 is in communication with the first cavity 311. Specifically, a channel in communication with the air bag 32 is formed in the side wall of the rotating column. The pressing assembly 33 is used to press the umbilical cord in the vertical state on the air bag 32. The gas control assembly 34 fills or extracts the gas into or out of the first cavity 311 by the rotation of the rotating column 31.

[0080] In the embodiment, the placenta is pulled to make the umbilical cord in a vertical state. Then the whole umbilical cord is pressed on the air bag 32 by the pressing assembly 33. There is a certain amount of gas in the air bag 32, which increases the internal pressure of the umbilical cord and makes the umbilical cord tight. It is to be noted that the umbilical cord surface is smooth, so when the umbilical cord is in a tight state, the blood collection needle can be easily punctured. The rotation of the rotating column 31 in one direction driven by the motor 40 can gradually fill the gas into the first cavity 311, so that the air bag 32 can gradually expand and compress the umbilical cord, so that there is a certain pressure in the umbilical cord at all times, and the blood in the umbilical cord can enter the blood collection bag 50 below from the blood collection needle more quickly and completely.

[0081] In one embodiment, the pressing assembly 33 includes a first arc-shaped plate 331, a second arc-shaped plate 333, a receiving basin 335, and an elastic binding belt 336.

[0082] The lower end of the first arc-shaped plate 331 is hinged to the rotating column 31, the first arc-shaped plate 331 extends along the length direction of the rotating column 31, and the first arc-shaped plate 331 is provided with a first needle inlet 332 extending along the length direction thereof. The outer wall of the second arc-shaped plate 333 is slidably connected to the inner wall of the first arc-shaped plate 331, the second arc-shaped plate 333 is provided with a second needle inlet 334 extending along the length direction thereof, and the second needle inlet 334 partially or wholly overlaps the first needle inlet 332. The inner wall of the second arc-shaped plate 333 can be in contact with the outer wall of the air bag 32. The cross section of the first arc-shaped plate 331 and the second arc-shaped plate 333 is similar to the cross section of a roof tile. The inner wall of the first arc-shaped plate 331 is provided with a limiting slot along the length direction thereof, and the mouth of the limiting slot is contracted. The outer wall of the second arc-shaped plate 333 is connected with a limiting block 383d extending along the length direction thereof, the end of the limiting block 383d away from the second arc-shaped plate 333 gradually increases in size, the limiting block 383d is slidably connected to the limiting slot and cannot be separated from the limiting slot. For example, the limiting block 383d and the limiting slot can be arranged in the dovetail block and the dovetail slot.

[0083] The receiving basin 335 is connected to the upper end of the second arc-shaped plate 333, and the receiving basin 335 is used to place the placenta connected with the umbilical cord. The elastic binding belt 336 is sleeved outside the rotating column 31, the first arc-shaped plate 331 and the second arc-shaped plate 333, and the elastic binding belt 336 is used to bind the first arc-shaped plate 331 or the second arc-shaped plate 333 and the rotating column 31 together.

[0084] In the embodiment, the first arc-shaped plate 331 and the second arc-shaped plate 333 are inclined when not in use, and when in use, the water-absorbing towel is laid in the inner wall of the second arc-shaped plate 333 and the receiving basin 335, and then the placenta is placed in the receiving basin 335, the umbilical cord is placed along the inner wall of the second arc-shaped plate 333 downwards, and then the second arc-shaped plate 333 is slid to adjust the position of the second arc-shaped plate 333 on the first arc-shaped plate 331, so that the lower end of the umbilical cord can be just at the lower end of the first arc-shaped plate 331. At this time, the blood sampling needle passes through the second needle inlet 334 and the first needle inlet 332 to puncture the relatively tight umbilical cord, the pressing assembly 33 can adapt to umbilical cords of different lengths. The pressing assembly 33 presses the umbilical cord against the air bag 32, effectively fixes the umbilical cord, and makes the blood sampling needle puncture more conveniently, thereby improving the puncture efficiency.

[0085] In one embodiment, the rotating mechanism 30 further comprises a mounting ring 35, a clamping assembly 36, a suction cup 37 and a linkage assembly 38.

[0086] The axis of the rotating column 31 and the center line of the mounting ring 35 are located in a plane, the upper end of the mounting ring 35 is connected with the lower end of the rotating column 31, and the lower end of the mounting ring 35 is rotationally connected with the base 10. The clamping assembly 36 is arranged on the inner wall of the upper end of the mounting ring 35, and is used for clamping the interfaces of the blood collection bag 50. The suction cups 37 are symmetrically arranged in two, and are transversely slidably arranged in the mounting ring. The two suction cups 37 can be attached to the outer wall of the blood collection bag 50 from both sides. The linkage assembly 38 drives the two suction cups 37 to approach or move away from each other through the rotation of the rotating column 31.

[0087] In the embodiment, the blood needle interface, the sample bag interface and the filter interface of the blood collection bag 50 are clamped by the clamping assembly 36, so that the blood collection bag 50 can be hung in the mounting ring 35. Then the blood in the upper umbilical cord is guided into the blood collection bag 50 by the blood collection needle. Under the rotation of the rotating column 31, the second arc-shaped plate 333 and the air bag 32 on the upper side press the umbilical cord, and the linkage assembly 38 on the lower side drives the two suction cups 37 to pull the blood collection bag 50 from both sides respectively to generate negative pressure in the blood collection bag 50, so that the blood in the umbilical cord can flow into the blood collection bag 50 under the action of the force on both sides. The negative pressure of the blood collection bag 50 and the pressure on the umbilical cord by the second arc-shaped plate 333 and the air bag 32 cooperate to combine to ensure the flow efficiency of the blood under the condition that the force is small, which reduces the damage of the cells in the blood caused by the pressure in the process.

[0088] In one embodiment, the mounting ring 35 is connected with a connecting pipe 60, the base 10 is connected with a connecting column 11, and the inner wall of the connecting pipe 60 is threadedly connected with the outer wall of the connecting column 11. The lower end of the mounting ring 35 is provided with a first square hole 351 penetrating in the vertical direction, and the first square hole 351 is communicated with the connecting pipe 60.

[0089] The linkage assembly 38 drives the two suction cups 37 to approach or move away from each other through the rotation of the rotating column 31. Specifically, the linkage assembly 38 drives the two suction cups 37 to approach or move away from each other through the lifting caused by the rotation of the rotating column 31.

[0090] The linkage assembly 38 includes a first square rod 381, a cross rod 382, a support arm 383 and a connecting rod 384.

[0091] The lower end of the first square rod 381 is rotationally connected with the upper end of the connecting column 11 after penetrating through the first square hole 351, and the first square rod 381 is coaxial with the rotating column 31. Specifically, the upper end of the connecting column 11 is provided with a coaxial mounting hole, the opening part of the mounting hole is inwardly contracted to form a limiting ring, the lower end of the first square rod 381 is connected with a limiting cylinder, the limiting cylinder is gap-fitted with the mounting hole, and the limiting cylinder can be abutted with the limiting ring upwardly, so as to realize the rotational connection between the first square rod and the connecting column 11.

[0092] The middle part of the horizontal rod 382 is connected with the upper end of the first square rod 381. The support arms 383 are symmetrically arranged in two, and the two support arms 383 are slidably connected with the mounting ring 35. The end of the support arm 383 is connected with the corresponding suction disc 37. The connecting rods 384 are symmetrically arranged in two, and the lower ends of the two connecting rods 384 are respectively hinged to the two ends of the horizontal rod 382. The upper ends of the two connecting rods 384 are respectively hinged to the corresponding support arms 383. The arrangement of the horizontal rod 382 can make the movement of the connecting rod 384 not interfere with the blood collection bag 50.

[0093] In the embodiment, when the rotating column 31, the mounting ring 35 and the connecting pipe 60 rotate together under the driving of the motor 40, since the connecting pipe 60 is threadedly connected with the connecting column 11, the rotating column 31, the mounting ring 35 and the connecting pipe 60 will simultaneously rise and fall. When the mounting ring 35 rises relative to the connecting column 11, the two support arms 383 rise, and the first square rod 381 does not rise. The support arms 383 are pulled by the connecting rods 384, and the two support arms 383 approach each other, thereby driving the two suction discs 37 to approach each other, and thereby abutting against the two sides of the blood collection bag 50. The two suction discs 37 exhaust air in the process of abutting against the two sides of the blood collection bag 50 to generate negative pressure inside, thereby adsorbing the outer wall of the blood collection bag 50. An external suction device can also be provided to suck the gas in the suction disc 37 to form negative pressure.

[0094] Similarly, when the mounting ring 35 descends relative to the connecting column 11, the two support arms 383 drive the two suction discs 37 to move away from each other, thereby pulling the outer walls of the two sides of the blood collection bag 50, so that the blood collection bag 50 generates negative pressure inside to suck the blood in the umbilical cord.

[0095] In one embodiment, the gas control assembly 34 includes a driving column 341, a breather pipe 345, a piston 346 and a second square rod 347.

[0096] The lower end of the driving column 341 is fixedly connected with the upper end of the rotating column 31. The second cavity 342 is formed in the driving column 341 along the axial direction thereof. The second square hole 343 is formed in the upper end of the driving column 341. The air inlet hole 344 is formed in the sidewall of the lower end of the driving column 341. The upper end of the breather pipe 345 is in communication with the upper end of the second cavity 342. The lower end of the breather pipe 345 is in communication with the first cavity 311. The piston 346 is slidably arranged in the second cavity 342 along the axial direction of the driving column 341. The outer wall of the piston 346 is dynamically sealed with the inner wall of the second cavity 342. The upper end of the second square rod 347 is connected with the output end of the motor 40. The lower end of the second square rod 347 is fixedly connected with the piston 346 after passing through the second square hole 343. The second square rod 347 is dynamically sealed with the second square hole 343.

[0097] In this embodiment, the motor 40 drives the second square rod 347 to rotate, thereby driving the driving column 341 to rotate and further driving the rotating column 31 to rotate. When the rotating column 31 rotates and descends, the mounting ring 35 descends, the two suction cups 37 move away from each other, and the piston 346 moves up in the second cavity 342, thereby pushing the air from the air pipe 345 into the first cavity 311 to make the air bag 32 expand and compress the umbilical cord.

[0098] In one embodiment, the third square hole 352 is formed on the mounting ring 35 at a position corresponding to the support arm 383.

[0099] The support arm 383 comprises a first square tube 383a, a second square tube 383c, a limiting block 383d, a first limiting ring 383e, a second limiting ring 383f, and a first spring 383g.

[0100] The outer wall of the first square tube 383a is in sliding fit with the corresponding third square hole 352, and the side wall of the first square tube 383a is provided with a limiting window 383b along the length direction thereof.

[0101] One end of the second square tube 383c is connected with the corresponding suction cup 37, and the other end of the second square tube 383c is in sliding fit with the inner wall of the first square tube 383a. When the external suction device is used to suck the gas in the suction cup 37, the end of the second square tube 383c is in communication with the suction cup 37, and the other end of the second square tube 383c is in communication with the suction device. The suction device is a prior art and will not be described here.

[0102] The limiting block 383d is connected with the outer wall of the second square tube 383c and is in sliding fit with the limiting window 383b along the length direction of the first square tube 383a. The inner ring of the first limiting ring 383e is connected with the outer wall of the first square tube 383a near the end of the suction cup 37. The inner ring of the second limiting ring 383f is connected with the outer wall of the second square tube 383c. The first spring 383g is sleeved outside the first square tube 383a and the second square tube 383c, and the two ends of the first spring 383g are respectively in abutment with the first limiting ring 383e and the second limiting ring 383f. The connecting rod 384 can be hinged with the lower end of the first limiting ring 383e.

[0103] In this embodiment, the connecting rod 384 drives the first square tube 383a to move transversely to realize the mutual approach or separation of the two suction cups 37. When the blood collection bag 50 is placed between the two suction cups 37, one of the suction cups 37 can be pulled away from the other suction cup 37 to provide sufficient space between the two suction cups 37 for placing the blood collection bag 50. At this time, the second square tube 383c slides relative to the first square tube 383a, and the first spring 383g is compressed.

[0104] In one embodiment, the clamping assembly 36 comprises a first clamping block 361, a locking rod 364, a second clamping block 365, and a second spring 367.

[0105] The upper end of the first clamping block 361 is rotationally connected with the inner wall of the upper end of the mounting ring 35, two transversely penetrating locking holes 363 are formed on the first clamping block 361, and a first clamping groove 362 is formed on the first clamping block 361. Specifically, after the upper end of the first clamping block 361 is rotationally connected with the mounting ring 35, the first clamping block 361 can be rotated out of the mounting ring 35.

[0106] Two locking rods 364 are arranged, one end of each locking rod 364 is connected with a stop block, and the other end of each locking rod 364 penetrates through a corresponding locking hole 363. The second clamping block 365 is connected with the other end of each locking rod 364 away from the stop block, a second clamping groove 366 is formed on the side of the second clamping block 365 facing the first clamping block 361, and the second clamping groove 366 can clamp the interface of the blood collection bag 50 in cooperation with the first clamping groove 362. Specifically, the first clamping groove 362 and the second clamping groove 366 are paired, can clamp one interface on the blood collection bag 50, more than one pair can be arranged, and three pairs are arranged in the device. The interface of the blood collection bag 50 has a butterfly wing, and after the first clamping groove 362 and the second clamping groove 366 clamp the interface, the lower end of the butterfly wing can abut against the upper end of the first clamping block 361 and the second clamping block 365, so as to clamp the blood collection bag 50.

[0107] Two second springs 367 are arranged, and each second spring 367 is sleeved on a locking rod 364, and the two ends of each second spring 367 abut against the stop block and the first clamping block 361, respectively.

[0108] In use, in the embodiment, the first clamping block 361 is rotated to rotate out of the mounting ring 35, the second clamping block 365 is pulled, the interface of the blood collection bag 50 is placed between the first clamping groove 362 and the second clamping groove 366, then the second clamping block 365 is released, and under the action of the second spring 367, the first clamping block 361 and the second clamping block 365 clamp the interface on the blood collection bag 50; then one of the suction cups 37 is pulled, the first clamping block 361 is rotated, and the blood collection bag 50 is rotated to between the two suction cups 37, so that the operation is more convenient.

[0109] In the specification of the present application, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A stem cell collection device, characterized in that, include: Base (10); A support frame (20), the lower end of which is connected to the base (10); Rotary mechanism (30), which is rotatably mounted on the base (10); and The motor (40) is located at the upper end of the support frame (20), and the output end of the motor (40) is connected to the upper end of the rotary mechanism (30); The upper part of the rotary mechanism (30) can fix the umbilical cord and make the umbilical cord vertical; the lower part of the rotary mechanism (30) can fix the blood collection bag (50).

2. The stem cell collection device as described in claim 1, characterized in that, The rotary mechanism (30) includes: A rotating column (31) is provided, the upper end of which is connected to the output end of the motor (40) and can be driven by the motor (40) to rotate. A first cavity (311) extending along its length is provided inside the rotating column (31). An airbag (32) is connected to the outer wall of the rotating column (31), the airbag (32) extends along the length of the rotating column (31), and the airbag (32) communicates with the first cavity (311); A pressing assembly (33) for pressing the vertically positioned umbilical cord against the airbag (32); and The gas control component (34) fills or extracts gas into the first cavity (311) by means of the rotation of the rotating column (31).

3. The stem cell collection device as described in claim 2, characterized in that, The pressing component (33) includes: The first arc plate (331) has its lower end hinged to the rotating column (31). The first arc plate (331) extends along the length direction of the rotating column (31). The first arc plate (331) has a first needle inlet (332) extending along its length direction. The second arc plate (333) has an outer wall that slides with the inner wall of the first arc plate (331). The second arc plate (333) has a second needle inlet (334) extending along its length direction, and the second needle inlet (334) partially or completely overlaps with the first needle inlet (332). The inner wall of the second arc plate (333) can contact the outer wall of the airbag (32). A receiving basin (335), the receiving basin (335) being connected to the upper end of the second arc-shaped plate (333), the receiving basin (335) being used to place the placenta connected to the umbilical cord; and An elastic restraint band (336) is sleeved on the outside of the rotating column (31), the first arc plate (331) and the second arc plate (333), and the elastic restraint band (336) is used to bind the first arc plate (331) or the second arc plate (333) together with the rotating column (31).

4. The stem cell collection device as described in claim 3, characterized in that, The rotary mechanism (30) further includes: Mounting ring (35), the upper end of which is connected to the lower end of the rotating column (31), and the lower end of which is rotatably connected to the base (10); Clamping assembly (36), which is disposed on the upper inner wall of the mounting ring (35), is used to clamp the interface of the blood collection bag (50); Suction cup (37), two suction cups (37) are provided symmetrically, and the two suction cups (37) are slidably disposed in the mounting, and the two suction cups (37) can be attached to the outer wall of the blood collection bag (50) from both sides; Linkage component (38), which drives two suction cups (37) to move closer or further apart by means of the rotation of the rotating column (31).

5. The stem cell collection device as described in claim 4, characterized in that, The mounting ring (35) is connected to a connecting pipe (60); the base (10) is connected to a connecting post (11); the inner wall of the connecting pipe (60) is threaded to the outer wall of the connecting post (11); the lower end of the mounting ring (35) is provided with a first square hole (351) that runs vertically through it, and the first square hole (351) communicates with the connecting pipe (60). The linkage component (38) includes: The lower end of the first square rod (381) passes through the first square hole (351) and is rotatably connected to the upper end of the connecting column (11). A crossbar (382), the middle part of which is connected to the upper end of the first square bar (381); Support arms (383), two support arms (383) are symmetrically arranged, the two support arms (383) are slidably connected to the mounting ring (35), and the ends of the support arms (383) are connected to the corresponding suction cups (37); and Connecting rod (384), two connecting rods (384) are symmetrically arranged. The lower ends of the two connecting rods (384) are respectively hinged to the two ends of the crossbar (382), and the upper ends of the two connecting rods (384) are respectively hinged to the corresponding support arm (383).

6. The stem cell collection device as described in claim 5, characterized in that, The pneumatic control component (34) includes: A drive column (341) is provided, the lower end of which is fixedly connected to the upper end of the rotating column (31). A second cavity (342) is provided in the drive column (341) along its axial direction. A second square hole (343) is provided at the upper end of the drive column (341). An air inlet (344) is provided on the lower side wall of the drive column (341). Ventilation tube (345), the upper end of which is connected to the upper end of the second cavity (342), and the lower end of which is connected to the first cavity (311); A piston (346) is slidably disposed within the second cavity (342) along the axial direction of the drive column (341), and the outer wall of the piston (346) dynamically seals against the inner wall of the second cavity (342); and The second square rod (347) has its upper end connected to the output end of the motor (40), and its lower end passes through the second square hole (343) and is fixedly connected to the piston (346).

7. A stem cell collection device as described in claim 6, characterized in that, A third hole (352) is provided on the mounting ring (35) corresponding to the support arm (383); The support arm (383) includes: The first square tube (383a) has an outer wall that slides in conjunction with the corresponding third third hole (352), and a limiting window (383b) is provided on the side wall of the first square tube (383a) along its length direction. The second square tube (383c) has one end connected to the corresponding suction cup (37) and the other end slidingly engaged with the inner wall of the first square tube (383a). A limiting block (383d) is connected to the outer wall of the second square tube (383c), and the limiting block (383d) and the limiting window (383b) slide together along the length direction of the first square tube (383a). The first limiting ring (383e) is connected to the outer wall of the first square tube (383a) near the suction cup (37). The inner ring of the second limiting ring (383f) is connected to the outer wall of the second square tube (383c); and The first spring (383g) is sleeved on the outside of the first square tube (383a) and the second square tube (383c). The two ends of the first spring (383g) abut against the first limiting ring (383e) and the second limiting ring (383f), respectively.

8. The stem cell collection device as described in claim 7, characterized in that, The clamping assembly (36) includes: The first clamping block (361) has its upper end rotatably connected to the upper inner wall of the mounting ring (35). The first clamping block (361) has two locking holes (363) that extend horizontally through it. The first clamping block (361) also has a first clamping groove (362). Locking rod (364), two locking rods (364) are provided, one end of the locking rod (364) is connected to a stop block, and the other end of the locking rod (364) passes through the corresponding locking hole (363). The second clamping block (365) is connected to the ends of the two locking rods (364) away from the stop block. The second clamping block (365) has a second clamping groove (366) on the side facing the first clamping block (361). The second clamping groove (366) can cooperate with the first clamping groove (362) to clamp the interface of the blood collection bag (50). The second spring (367) is provided in two parts. The two second springs (367) are respectively sleeved on the two locking rods (364). The two ends of the second spring (367) abut against the stop block and the first clamping block (361) respectively.

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