CN2470816Y - Maza residual blood collecting apparatus - Google Patents
Maza residual blood collecting apparatus Download PDFInfo
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- CN2470816Y CN2470816Y CN 01200591 CN01200591U CN2470816Y CN 2470816 Y CN2470816 Y CN 2470816Y CN 01200591 CN01200591 CN 01200591 CN 01200591 U CN01200591 U CN 01200591U CN 2470816 Y CN2470816 Y CN 2470816Y
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Abstract
The utility model provides a collecting device for placenta remaining blood, which can collect more placenta remaining blood so as to meet the needs of the greater-weight young and adult patients. The collecting device comprises a uterine analog bag having a flexible bag which is provided with a temperature control device; a pumping device, which is connected with a catheter that can inserted into the umbilical cord vein of the umbilical cord section of the placenta.
Description
The utility model belongs to clinical medicine navel-placental blood candidate stem cell and gathers the field, exactly is the acquisition method and the harvester of placenta residual blood.
Marrow and peripheral blood carry out one of major progress that hematopoietic stem cell transplantation become hematopoietic stem cell transplantation field over nearly 10 years, especially in China, along with increasing of front yard, the list bride's side, the person's that provides marrow ratio will be fewer and feweri, carrying out hematopoietic stem cell transplantation with bleeding of the umbilicus more has its unique practical, has shown broad clinical application prospect.Hematopoietic cell quantity in single part of bleeding of the umbilicus can satisfy the demand of the child patient that carries out stem cell transplantation substantially, but for body weight bigger teenager and adult patient, hematopoietic cell quantity in single part of bleeding of the umbilicus but becomes a key constraints, so that ongoing umbilical cord blood transplantation work substantially still rests on children's stage.In the placenta remaining a certain amount of fetal blood be the important supplement of bleeding of the umbilicus, but still lack satisfied placenta residual blood acquisition method so far, bleeding of the umbilicus-the placental blood that generally adopts at present Broxmeyer to propose clinically gather two-phase method (referring to Shen Baijun etc. " human bleeding of the umbilicus basis. clinical " 104 pages-105 pages of Tianjin science tech publishing house nineteen ninety-fives), phase one is to collect bleeding of the umbilicus from the umbilical cord broken ends of fractured bone in placenta is given birth to process, subordinate phase is repeatedly to puncture placenta surface vein to obtain intraplacental residual blood with syringe needle, but placenta residual blood of not only gathering with this method and the hematopoietic cell that comprises are less, also easily cause bacterium and fungal infection.Turner once reported the application catheter acquisition method collect the placenta residual blood (referring to Shen Baijun etc. " human bleeding of the umbilicus basis. clinical " 105 pages-106 pages of Tianjin science tech publishing house nineteen ninety-fives), placenta after will giving birth to and umbilical cord are put into 10% Betagen Solution immediately, put an aseptic umbilical cord cap in the Umbilical Blood Flow bifurcation, and cut off umbilical cord immediately from the end of umbilical cord cap, it is moving that No. 8 French feed conduits (8-French Feeding Tube) are inserted navel respectively, intravenous, form a loop system, after the gravity flow of umbilical vein blood stops, inject normal saline flushing cord vessels and placenta by arteria umbilicalis through conduit, collect bleeding of the umbilicus by umbilical vein; But find when repeating this method by document, although this method can be collected hematopoietic cell to greatest extent theoretically, but it is crooked because arteria umbilicalis is thin, make that the intubate operation is very time-consuming, and the placenta many physiologicals that took place in five to ten minutes of back placenta residual blood of giving birth to are solidified, especially at low temperatures solidify sooner, thereby it is very low to collect placenta residual blood success ratio; Do not see the report of clinical practice yet.
The purpose of this utility model is to provide a kind of harvester of placenta residual blood, uses this device and can realize said method, gathers more placenta residual blood, to satisfy the demand of bigger teenager of body weight and adult patient.
The utility model is considered placenta physilogical characteristics in uterus, by simulating the method that placenta environmental baseline in uterus realizes gathering more placenta residual blood.
Placenta needs to satisfy three critical environmental conditions in uterus:
(1) temperature conditions: placenta in uterus remains under the temperature conditions identical with body temperature, and blood circulation is smooth and easy in the intraplacental blood vessel.If temperature is low excessively, blood has the possibility of condensing.
(2) the battle array tension force that contracts in uterus: the uterus battle array contracts being extruded with of placenta is helped flowing of placenta inner blood.
(3) aseptic: when gathering the placenta residual blood, being captured in the aseptic environments of placenta residual blood carried out, more perfect from acquisition method than other placenta residual blood acquisition method aseptic condition.
Utilize this harvester can simulate placenta environmental baseline in uterus, guarantee intraplacental blood circulation, can gather the placenta residual blood more.
1, satisfied temperature condition: the temperature of this bag remains on 30 ℃--and between 45 ℃, placenta is remained under the temperature conditions identical with body temperature in uterus, intraplacental blood can not condensed.
Tension force when 2, simulation uterus battle array contracts: when extracting the placenta residual blood out, see through the bag intermittently and locally extruding placenta of uterus simulation bag, the tension force in the time of can simulating the uterus battle array and contract.If adopt uniform pressure, as air pressure, push placenta, the uniform tension that then acts on placenta is unfavorable for the collection of placenta residual blood, reason is that uniform pressure is extruded at the same time umbilical vein and circulation path to block and the placenta residual blood can not be extruded.And can improve and gather output by means of contract the extruding to placenta of uterus battle array when adopting childbirth, therefore, this method, when extracting the placenta residual blood out, placenta pushes in the bag intermittently and locally that sees through uterus simulation bag.
3, aseptic collection: by means of uterus simulation bag placenta is enclosed in the bag, is exposed in the air than the acquisition method of other placenta residual blood and carries out, its aseptic condition is more perfect.And, by means of the protection of bag, avoided direct extruding placenta, also help aseptic collection.
The utility model provides a kind of harvester of placenta residual blood, and this harvester is provided with: uterus simulation bag, and this uterus simulation bag is flexible bag, and this bag is provided with temperature control equipment, and temperature is controlled at 30 ℃--between 45 ℃;
Exhaust device is connected with the conduit in the umbilical vein of the umbilical cord section that can insert placenta on this exhaust device.
Harvester of the present utility model can be done and further develop:
Uterus simulation bag in the harvester of the present utility model can be provided with like this: the double-ply bag of described uterus simulation bag for being made by flexible material.Further, described uterus simulation bag is rubber bag, polybag or plastic bag.On the skin of described double-ply bag opening is arranged, be plugged with stopper on the opening.Be filled with 30 ℃ in the interlayer of described double-deck bag--45 ℃ liquid.Described liquid is the pure water after physiological saline or the sterilization.This temperature control equipment is the double-decker and the liquid that fills in double-deck interlayer of bag; Perhaps this temperature control equipment also can be the heating arrangement that is located in the bag interlayer, as heating wire.
Uterus simulation bag in the harvester of the present utility model also can be provided with like this: the opening edge place of described uterus simulation bag is made as the closing in structure.The opening edge of perhaps described uterus simulation bag is provided with and prolongs closed sides or be made as the structure that can break a seal, and is provided with the opening that the umbilical cord on the placenta therefrom stretches out when placenta is inserted bag on the bag in addition.
In harvester of the present utility model, described exhaust device can be syringe, the described conduit that is connected between syringe and the umbilical vein is provided with three-way connection, and the 3rd port of this three-way connection is connected with blood taking bag, and three-way connection is provided with the switch of control port conducting; Described switch is made as pipe for one section, the plane that constitutes with three ports of vertical three-way connection rotatably puts in the three-way connection, the pipe wall is provided with at least two breach or hole, another section of rotary switch is a handle, the breach on the turn handle change pipe wall or the aligning direction in hole, wherein two ports of connection three-way connection.
In harvester of the present utility model, described exhaust device also can be the air pump that is provided with air intake opening and gas outlet, and the air intake opening of this pump drainage air pump is provided with breather check valve, and the gas outlet is provided with outgassing nonreturn valve, on the conduit that air intake opening is connected with umbilical vein links to each other, the gas outlet is connected with blood taking bag.
In harvester of the present utility model, the catheter wall of the port of the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one breach, forms the jag structure, is stopped up by the umbilical vein wall with the port that prevents conduit.
In harvester of the present utility model, the catheter wall near port position of the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one perforate, is stopped up by the umbilical vein wall with the port that prevents conduit.
In harvester of the present utility model, conduit in the umbilical vein of the umbilical cord section of described insertion placenta is being made as bilayer near the part of port or from one section duct portion near the position of port, catheter outer is provided with air intake opening, catheter outer part near port is made as thin-walled, when the interlayer of air intake opening guide tube wall charges into gas, local thin-walled is heaved, in compressing conduit internal layer within reason the skin of conduit and umbilical vein are combined closely.
Further describe the utility model below in conjunction with accompanying drawing:
Brief Description Of Drawings
Fig. 1 is the synoptic diagram of umbilical cord section;
Fig. 2 is first kind of structural representation of placenta residual blood harvester of the present utility model;
Fig. 3 is second kind of structural representation of placenta residual blood harvester of the present utility model;
Fig. 4 is first kind of structural representation of the uterus simulation bag of placenta residual blood harvester of the present utility model;
Fig. 5 is second kind of structural representation of the uterus simulation bag of placenta residual blood harvester of the present utility model;
Fig. 6 is the cut-open view of the conduit of placenta residual blood harvester of the present utility model;
Fig. 7 is the suction condition of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Fig. 8 is the discharge state of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Fig. 9 is the closed state of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Figure 10 is the suction condition of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Figure 11 is the discharge state of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Figure 12 is the closed state of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model;
Figure 13 is the structural representation as the air pump of exhaust device of placenta residual blood harvester of the present utility model.
Embodiment 1
A kind of harvester of placenta residual blood, this harvester is provided with:
Uterus simulation bag, this uterus simulation bag is flexible bag, this bag is provided with temperature control equipment;
Exhaust device is connected with the conduit in the umbilical vein of the umbilical cord section that can insert placenta on this exhaust device.
Described uterus simulation bag 1 can be the double-ply bag of being made by flexible material.This flexible material can be as materials such as rubber, plastics or plastic cement, as selecting the used igelite of preparation blood taking bag for use.The temperature control equipment of described uterus simulation bag can be the liquid that remains on uniform temperature in the interlayer of double-deck bag and double-deck bag, and promptly the temperature of this uterus simulation bag is by being filled with 30 ℃ in the interlayer of double-ply bag--and 45 ℃ liquid keeps.On the skin 12 of described double-ply bag opening is arranged, be plugged with stopper 16 on the opening.Opening 16 from outer 12 injects the liquid 14 of uniform temperature so that uterus simulation bag 1 remains in certain temperature, and this liquid can be the pure water after physiological saline or the sterilization, as shown in Figure 4.
One end 26 of conduit 2 is inserted among the umbilical vein v of umbilical cord section of placentas, the synoptic diagram of umbilical cord end face as shown in Figure 1, a is an arteria umbilicalis.The other end 25 of conduit 1 links to each other with exhaust device 3, utilizes exhaust device 3 to extract the placenta residual blood out from umbilical vein v;
Further, the opening edge place of described uterus simulation bag is made as the closing in structure.This closing in structure preferably has elasticity, and when placenta was inserted uterus simulation bag, a umbilical cord stretched out from opening part, and this closing in structure is closed in placenta in the bag, is hedged off from the outer world, and makes aseptic condition more perfect.Also can be like this: as shown in Figure 4, opening 13 limits of described uterus simulation bag are provided with and prolong closed sides 131 or be made as the structure that can break a seal, this structure that can break a seal is for being provided with chimb 132 on the inwall of opening one side, the inwall of a corresponding side is provided with groove 133, chimb 132 can snap in groove 133 or deviate from from groove 133, can break a seal to reach.Be provided with an opening 15 on the bag in addition, so that placenta is when inserting bag, the umbilical cord on the placenta therefrom stretches out.By this structure, placenta is closed in the bag, be hedged off from the outer world, make aseptic condition more perfect.
Because blood remaining in the placenta is limited, when the volume of described exhaust device was big, the once suction of exhaust device can be injected most placenta residual blood blood taking bag with the blood in the exhaust device and preserve then; When blood is injected blood taking bag, from the umbilical vein of placenta, continue to extract out the placenta residual blood with another exhaust device.Perhaps, this exhaust device also can be connected with blood taking bag by conduit.
The described exhaust device that is connected with conduit 3 can be syringe, as shown in Figure 2.The described conduit 2 that is connected between syringe and the umbilical vein v is provided with three-way connection 5, and the 3rd port 55 of this three-way connection 5 is connected with blood taking bag 4, and three-way connection 5 is provided with switch; Switch 52 on the crossover tee joint 5 will enter in the blood taking bag 4 by the placental blood of suction syringe from umbilical vein v.Described switch is made as pipe for 52 1 sections, the plane that constitutes with three ports of vertical three-way connection rotatably puts in the three-way connection 5, the pipe wall is provided with at least two breach or hole, another section of rotary switch is a handle 56, the breach on the turn handle change pipe wall or the aligning direction in hole, wherein two ports of connection three-way connection.This three-way connection has numerous embodiments, by switch, as long as can realize a certain port under different conditions can and only with two other port in one be communicated with.The utility model provides two embodiments to illustrate.Referring to Fig. 7 to Figure 12, wherein, Fig. 7 to Fig. 9 is first kind of structure.Fig. 7 is the suction condition of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model; Fig. 8 is the discharge state of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model; Fig. 9 is the closed state of first kind of structure of the three-way connection of placenta residual blood harvester of the present utility model.This three-way connection is provided with housing 51, is connected with three ports 511,512 and 513 on this housing.Be provided with switch 52 in the housing, switch is provided with three openings 521,522 and 523.Switch 52 can rotate in housing by the handle 56 that turn is connected on the switch, and the opening on the change switch and the aligned relationship of the port on the housing enter in the blood taking bag 4 with the placental blood that reaches suction syringe from umbilical vein v.Set for example: the port 511 of three-way connection is connected with syringe, and port 512 is connected with blood taking bag, and port 513 connects the conduit of extracting placental blood from umbilical vein out.As shown in Figure 7, opening 521 is aimed at port 511, and opening 523 is aimed at port 513, thereby the port of threeway 511 is communicated with port 513, and port 512 all ends with port 511 and 513, and placental blood can flow into 511 from port 513, sucks placental blood in the syringe.As shown in Figure 8, opening 522 is aimed at port 511, and opening 521 is aimed at port 512, thereby the port of threeway 511 is communicated with port 512, and port 513 all ends with port 511 and 512, and placental blood can flow into 512 from port 511, discharges placental blood in the syringe.As shown in Figure 9, each opening of switch and the equal misalignment of arbitrary port on the housing, this three-way connection is cut-off state.Figure 10 to Figure 12 is second kind of structure of this three-way connection.Figure 10 is the suction condition of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model; Figure 11 is the discharge state of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model; Figure 12 is the closed state of second kind of structure of the three-way connection of placenta residual blood harvester of the present utility model.This three-way connection is provided with housing 51, is connected with three ports 511,512 and 513 on this housing.Be provided with switch 52 in the housing, switch is provided with two openings 521,522.Can switch 52 be rotated in housing by the handle 56 that turn is connected on the switch, the opening on the change switch and the aligned relationship of the port on the housing enter in the blood taking bag 4 with the placental blood that reaches suction syringe from umbilical vein v.Set for example: the port 512 of three-way connection is connected with syringe, and port 511 is connected with blood taking bag, and port 513 connects the conduit of extracting placental blood from umbilical vein out.As shown in figure 10, opening 521 is aimed at port 512, and opening 522 is aimed at port 513, thereby the port of threeway 512 is communicated with port 513, and port 511 all ends with port 512 and 513, and placental blood can flow into 512 from port 513, sucks placental blood to syringe.As shown in figure 11, opening 522 is aimed at port 512, and opening 521 is aimed at port 511, thereby the port of threeway 511 is communicated with port 512, port 513 all ends with port 511 and 512, and placental blood can flow into 511 from port 512, discharges placental blood in the syringe to blood taking bag.As shown in figure 12, each opening of switch and the equal misalignment of arbitrary port on the housing, this three-way connection is cut-off state.
As shown in Figure 6, the catheter wall of the port 26 of the conduit 2 in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one breach 23, forms the jag structure, is stopped up by the umbilical vein wall with the port that prevents conduit.
As shown in Figure 6, the catheter wall near port position of the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one perforate 22, is stopped up by the umbilical vein wall with the port that prevents conduit.
As shown in Figure 6, conduit 2 in the umbilical vein of the umbilical cord section of described insertion placenta is being made as double-deck 241,242 near the part of port 26 or from one section duct portion near the position of port 26, skin 241 parts near the conduit 2 of port 26 are made as thin-walled 243, the skin 241 of conduit 2 is provided with air intake opening 21, air intake opening 21 places are provided with breather check valve, as shown in Figure 6, can be elastic body 212 constitutes, the elastic body center is provided with air hole 211, air hole is wedge shape, the outer end is gradually big, and the inner is gradually little, and the inner terminal closure reclines; During inflation, most advanced and sophisticated mouthful of air tube or the injection of syringe are clamp-oned from air hole 211 for most advanced and sophisticated mouthful, inflate in interlayer, treat that thin-walled 243 heaves, the anticyclonic while in keeping interlayer, air tube or syringe are extracted, at this moment, gas can not leak, and thin-walled 243 keeps heaving state.When the interlayer of air intake opening 21 guide tube walls charged into gas, local thin-walled 243 was heaved, and the skin 241 of conduit is combined closely with umbilical vein v, simultaneously and compressing conduit internal layer 242 within reason, and referring to shown in Figure 1.
Referring to shown in Figure 3, be second kind of structural representation of placenta residual blood harvester of the present utility model.
The structure of the harvester of present embodiment and the foregoing description is basic identical, the structure of the bag of the uterus simulation bag that difference is to be adopted is different different with the structure of exhaust device, cancel three-way connection simultaneously, blood taking bag directly is connected on the air pump as exhaust device.
As shown in Figure 5, this uterus simulation bag 1 has flexible bag, and the temperature of this bag is controlled at 30 ℃--between 45 ℃; Wherein, described uterus simulation bag 1 can be the double-ply bag of being made by flexible material, and internal layer is 11, and skin is 12.This flexible material can be as materials such as rubber, plastics or plastic cement, as selecting the used igelite of preparation blood taking bag for use.The temperature of described uterus simulation bag is by being provided with electro-heat equipment 16 or heating arrangement keeps in the interlayer of double-ply bag, as heating wire 16, and other modes that also can be known to those skilled in the art.
See also shown in Figure 13, the described exhaust device that is connected with conduit 3 is for being provided with the air pump of air intake opening 32 and gas outlet 33, the air intake opening 32 of this pump drainage air pump is provided with breather check valve 321, gas outlet 33 is provided with outgassing nonreturn valve 331, air intake opening 32 is connected on the end 25 of the conduit 2 that links to each other with umbilical vein, and gas outlet 33 is connected with blood taking bag 4.This air pump is provided with the pump housing 31, is provided with piston 34 in the pump housing, is connected with push rod 35 on the piston 34, and push rod 35 stretches out from the pump housing one end relative with air intake opening and gas outlet.During operation, pulling push rod 35 outwards moves piston 34, and the retaining valve 331 in the gas outlet 33 is closed, and the retaining valve 321 in the air intake opening 32 is opened, and placental blood flows in the air pump chamber from the air intake opening 32 that is connected with conduit 2; Then, pushing tow push rod 35 inwardly moves piston 34, and the retaining valve 331 in the gas outlet 33 is opened, and the retaining valve 321 in the air intake opening 32 is closed, and placental blood flows into the blood taking bag from the gas outlet 33 that links to each other with blood taking bag 4.So repeatedly, the blood in the placenta constantly is pumped in the blood taking bag.
The description that above embodiment just does the utility model is understood the utility model so that the reader can know, is not meant to limit the utility model.The utility model also can be done other improvement, and is not only circular as shown in drawings, but if identical with essence of the present utility model, all within protection domain of the present utility model.
Claims (15)
1, a kind of harvester of placenta residual blood is characterized in that this harvester is provided with:
Uterus simulation bag, this uterus simulation bag is provided with and is flexible bag, and this bag is provided with temperature control equipment;
Exhaust device is connected with the conduit in the umbilical vein of the umbilical cord section that can insert placenta on this exhaust device.
2, the harvester of a kind of placenta residual blood as claimed in claim 1 is characterized in that: the double-ply bag of described uterus simulation bag for being made by flexible material.
3, the harvester of a kind of placenta residual blood as claimed in claim 2 is characterized in that: described uterus simulation bag is rubber bag, polybag or plastic bag.
4, the harvester of a kind of placenta residual blood as claimed in claim 2 is characterized in that: on the skin of described double-ply bag opening is arranged, be plugged with stopper on the opening.
5, the harvester of a kind of placenta residual blood as claimed in claim 1 is characterized in that: described uterus simulation bag is filled with 30 ℃ in the interlayer--the double-ply bag of 45 ℃ liquid.
6, the harvester of a kind of placenta residual blood as claimed in claim 5 is characterized in that: described liquid is the pure water after physiological saline or the sterilization.
7, the harvester of a kind of placenta residual blood as claimed in claim 1 is characterized in that: the opening edge place of described uterus simulation bag is made as the closing in structure.
8, the harvester of a kind of placenta residual blood as claimed in claim 1, it is characterized in that: the opening edge of described uterus simulation bag is provided with and prolongs closed sides or be made as the structure that can break a seal, and is provided with the opening that the umbilical cord on the placenta therefrom stretches out when placenta is inserted bag on the bag in addition.
9, the harvester of a kind of placenta residual blood as claimed in claim 1 is characterized in that: described exhaust device is a syringe.
10, the harvester of a kind of placenta residual blood as claimed in claim 9, it is characterized in that: the described conduit that is connected between syringe and the umbilical vein is provided with three-way connection, the 3rd port of this three-way connection is connected with blood taking bag, and three-way connection is provided with the switch of control port conducting.
11, the harvester of a kind of placenta residual blood as claimed in claim 10, it is characterized in that: described switch is made as pipe for one section, the plane that constitutes with three ports of vertical three-way connection rotatably puts in the three-way connection, the pipe wall is provided with at least two breach or hole, another section of rotary switch is a handle, the breach on the turn handle change pipe wall or the aligning direction in hole, wherein two ports of connection three-way connection.
12, the harvester of a kind of placenta residual blood as claimed in claim 1, it is characterized in that: the described exhaust device that is connected with conduit is the air pump that is provided with air intake opening and gas outlet, the air intake opening of this pump drainage air pump is provided with breather check valve, the gas outlet is provided with outgassing nonreturn valve, on the conduit that air intake opening is connected with umbilical vein links to each other, the gas outlet is connected with blood taking bag.
13, the harvester of a kind of placenta residual blood as claimed in claim 1, it is characterized in that: the catheter wall of the port of the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one breach, form the jag structure, stopped up by the umbilical vein wall with the port that prevents conduit.
14, the harvester of a kind of placenta residual blood as claimed in claim 1, it is characterized in that: the catheter wall near port position of the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is provided with at least one perforate, is stopped up by the umbilical vein wall with the port that prevents conduit.
15, the harvester of a kind of placenta residual blood as claimed in claim 1, it is characterized in that: the conduit in the umbilical vein of the umbilical cord section of described insertion placenta is being made as bilayer near the part of port or from one section duct portion near the position of port, catheter outer is provided with air intake opening, catheter outer part near port is made as thin-walled, when the interlayer of air intake opening guide tube wall charges into gas, local thin-walled is heaved, in compressing conduit internal layer within reason the skin of conduit and umbilical vein are combined closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200591 CN2470816Y (en) | 2001-02-13 | 2001-02-13 | Maza residual blood collecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200591 CN2470816Y (en) | 2001-02-13 | 2001-02-13 | Maza residual blood collecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470816Y true CN2470816Y (en) | 2002-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01200591 Expired - Fee Related CN2470816Y (en) | 2001-02-13 | 2001-02-13 | Maza residual blood collecting apparatus |
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| CN (1) | CN2470816Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104245011A (en) * | 2012-01-27 | 2014-12-24 | 新加坡美迪宇能私人有限公司 | Placental blood extraction device |
| CN116920185A (en) * | 2023-07-19 | 2023-10-24 | 浙江绿蔻生物技术有限公司 | Umbilical cord blood collection method |
-
2001
- 2001-02-13 CN CN 01200591 patent/CN2470816Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104245011A (en) * | 2012-01-27 | 2014-12-24 | 新加坡美迪宇能私人有限公司 | Placental blood extraction device |
| CN116920185A (en) * | 2023-07-19 | 2023-10-24 | 浙江绿蔻生物技术有限公司 | Umbilical cord blood collection method |
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