CN218167377U - PRP preparation facilities - Google Patents

Abstract

The utility model relates to a disclose a PRP preparation facilities. Relates to the technical field of medical equipment. The centrifugal separation device comprises a first centrifugal tube, a second centrifugal tube and a suction tube which communicates cavities of the first centrifugal tube and the second centrifugal tube; first centrifuging tube and second centrifuging tube one end all are equipped with the closing cap that can supply the syringe needle to impale, and straw one end is pegged graft in the cavity of first centrifuging tube, and the other end is pegged graft and is adjustable with the cavity of second centrifuging tube, and the straw is pegged graft in the grafting degree of depth of the one end of first centrifuging tube in first centrifuging tube, and the straw is pegged graft in the one end and the second centrifuging tube fixed connection of second centrifuging tube. The utility model discloses a carry out the secondary centrifugation in extracting the first centrifugation target liquid on first centrifuging tube upper strata to the second centrifuging tube to can not remain red blood cell in making the first centrifugation target liquid, solve the problem that red blood cell took out unclean, first centrifuging tube and second centrifuging tube all are in encapsulated situation simultaneously, thereby very big reduction PRP preparation process by external contaminated risk.

Description

PRP preparation facilities

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a PRP preparation facilities.

Background

PRP is an extract from autologous whole blood, containing high concentrations of platelets and growth factors. The classification by leukocyte concentration in PRP includes two categories: platelet-Rich Plasma containing high-concentration white blood cells, L-PRP (Leukocyte Plasma-Rich Plasma) for short, which contains a small amount of red blood cells, is mainly used for clinical treatment of bone repair, wound surfaces which are difficult to heal and the like; the Platelet-Rich Plasma containing no or low concentration of white blood cells is called P-PRP (Pure Platelet-Rich Plasma, which contains no red blood cells), and is more suitable for sports injury and cosmetic surgery.

The conventional PRP is prepared by a two-time centrifugation method generally, blood of a patient is conveyed into a centrifuge tube firstly, the blood in the centrifuge tube is centrifuged for the first time by a centrifuge, after the first centrifugation, the blood in the centrifuge tube is separated into supernatant and lower-layer red blood cells, then the red blood cells in the centrifuge tube are pumped out, the remaining supernatant in the centrifuge tube is centrifuged for the second time by the centrifuge, after the second centrifugation, the blood in the centrifuge tube is separated into the supernatant and the lower-layer PRP, finally the supernatant in the upper layer of the centrifuge tube is pumped out, and the remaining PRP in the centrifuge tube is the required PRP. The existing PRP preparation method has the following defects: (1) When the red blood cells which are centrifuged for the first time and are positioned at the lower layer of the centrifuge tube are extracted, the problem of red blood cell residue exists, so that the final preparation effect of the PRP is influenced; (2) open preparation systems are susceptible to external contamination; (3) The preparation process is complex, and the risk of external pollution is greatly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PRP preparation facilities to above-mentioned prior art not enough, can solve the remaining problem of red blood cell in the PRP preparation process, promote the preparation effect of PRP, simultaneously very big reduction receive external pollution's risk in the PRP preparation process.

The utility model provides a PRP preparation device, which comprises a first centrifugal tube, a second centrifugal tube and a suction tube which communicates the cavities of the first centrifugal tube and the second centrifugal tube; first centrifuging tube and second centrifuging tube one end all are equipped with the seal closure that can supply the syringe needle to impale, straw one end peg graft in the cavity of first centrifuging tube, the other end peg graft in the cavity of second centrifuging tube, the straw peg graft in the one end of first centrifuging tube the grafting degree of depth of in first centrifuging tube is adjustable, the straw peg graft in the one end and the second centrifuging tube fixed connection of second centrifuging tube.

Further, first centrifuging tube and second centrifuging tube are the conical tube, the closing cap is in the cavity of first centrifuging tube and second centrifuging tube is sealed to the tip end of first centrifuging tube and second centrifuging tube, the straw will the butt end intercommunication of first centrifuging tube and second centrifuging tube.

Furthermore, be equipped with the external screw thread on the straw, the butt end of first centrifuging tube be equipped with external screw thread complex screw hole.

Further, the butt end of first centrifuging tube is equipped with the opening with cavity and external intercommunication, and still includes right the butyl rubber stopper that seals is carried out to the opening of first centrifuging tube butt end, be equipped with on the butyl rubber stopper will the inlet port of cavity and external intercommunication of first centrifuging tube, the screw hole is located on the butyl rubber stopper.

Furtherly, the inlet port bottom is equipped with air cleaner, air cleaner is used for getting into to the external world the air of first centrifuging tube cavity filters.

Furtherly, still including being used for right the butt end of first centrifuging tube and the butt end of second centrifuging tube carry out spacing solid fixed ring, the butt end of first centrifuging tube and second centrifuging tube all is equipped with the spacing groove, gu fixed ring's both ends respectively with the spacing groove of first centrifuging tube and second centrifuging tube is pegged graft.

Furthermore, the fixing ring is provided with a plug for sealing the air inlet hole.

Further, the sealing cover is including the flexible glue stopper that can supply the syringe needle to impale to and fix the flexible glue stopper the aluminium cap that seals of first centrifuging tube and second centrifuging tube tip, it will to seal the aluminium cap the middle part of flexible glue stopper exposes.

The utility model discloses a PRP preparation facilities has following gain effect:

(1) The preparation device extracts the first centrifugal target liquid on the upper layer of the first centrifugal tube into the second centrifugal tube, and does not suck the red blood cells on the lower layer into the second centrifugal tube, so that the red blood cells are not left in the first centrifugal target liquid, the problem that the red blood cells are not completely extracted is solved, and the preparation effect of PRP is improved;

(2) According to the preparation device, the sealing caps of the first centrifugal tube and the second centrifugal tube are pierced through by the syringes, liquid is injected into the first centrifugal tube and the second centrifugal tube or is extracted from the first centrifugal tube and the second centrifugal tube, and the first centrifugal tube and the second centrifugal tube are in a sealed state in the process, so that the blood in the first centrifugal tube and the second centrifugal tube is prevented from contacting with outside air, and the risk of outside pollution in the PRP preparation process is greatly reduced;

(3) The insertion depth of the suction pipe of the preparation device in the first centrifuge tube can be adjusted, so that the insertion depth of the suction pipe in the first centrifuge tube can be adjusted at any time according to the blood of different patients, and the height of the suction pipe in the first centrifuge tube is guaranteed to be 1-2 mm higher than the layering surface of the first centrifuge tube all the time, so that the preparation device is wider in application range and higher in practicability;

(4) The volume of the second centrifugal tube of the preparation device is smaller than that of the first centrifugal tube, so that production materials required by the device in production are reduced, the production cost of the device is reduced, and resources are saved;

(5) The outer wall of the suction pipe of the preparation device is provided with external threads, and the butt end of the first centrifugal pipe is provided with a threaded hole matched with the external threads on the outer wall of the suction pipe, so that the adjustment of the inserting depth of the suction pipe in the first centrifugal pipe is realized through the matching of the external threads on the outer wall of the suction pipe and the threaded hole on the butt end of the first centrifugal pipe;

(6) The bottom of the air inlet of the preparation device is provided with the air filter, and when outside air enters the cavity of the first centrifugal tube through the air inlet, the outside air is filtered by the air filter, so that the pollution of the outside environment to blood in the first centrifugal tube is reduced;

(7) According to the preparation device, the two ends of the fixing ring are respectively inserted into the limiting grooves at the butt ends of the first centrifugal tube and the second centrifugal tube, so that the fixing ring limits the first centrifugal tube and the second centrifugal tube between the first centrifugal tube and the second centrifugal tube, and the situation that the suction tube is broken when the first centrifugal tube or the second centrifugal tube is mistakenly touched by strong external force is prevented, and the structural strength of the device is enhanced;

(8) This preparation facilities is through sealing the aluminium cap and fixing the sealed mode at first centrifuging tube and second centrifuging tube tip with the flexible glue stopper, and its fixed and sealed effect is better to prevent that the blood in first centrifuging tube and the second centrifuging tube from spilling, reduce the risk that produces the medical accident.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements.

Fig. 1 is a schematic structural diagram of a PRP preparing apparatus according to an embodiment of the present invention;

fig. 2 is a liquid level distribution diagram after the first centrifugation of a PRP preparing apparatus according to an embodiment of the present invention;

fig. 3 is a liquid level distribution diagram after the second centrifugation of a PRP preparing apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first centrifuge tube of a PRP preparation apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second centrifuge tube of a PRP preparation device according to an embodiment of the present invention

Fig. 6 is a schematic structural view of a butyl rubber plug of a PRP production apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a fixing ring of a PRP preparing apparatus according to an embodiment of the present invention.

In the figure: 1. a first centrifuge tube; 11. a limiting groove; 2. a second centrifuge tube; 3. a straw; 31. an external thread; 4. sealing cover; 41. a soft rubber plug; 42. sealing the aluminum cap; 5. a butyl rubber plug; 51. an air intake; 52. a threaded hole; 53. an air filter; 6. a fixing ring; 61. a plug; 7. red blood cells; 8. centrifuging the target liquid for the first time; 9. supernatant fluid; 10. and centrifuging the target liquid for the second time.

Detailed Description

For making purpose, technical scheme and advantage of the embodiment of the present invention clearer, the following will combine the drawings in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention clearly, completely describe, based on the embodiment of the present invention, all other embodiments obtained by the ordinary skilled person in the art without making creative work all belong to the protection scope of the present invention.

The PRP preparation device provided by the embodiment of the utility model comprises a first centrifugal tube 1, a second centrifugal tube 2 and a suction tube 3 which connects the cavities of the first centrifugal tube 1 and the second centrifugal tube 2; first centrifuging tube 1 and 2 one ends of second centrifuging tube all are equipped with the closing cap 4 that can supply the syringe needle to impale, and 3 one ends of straw are pegged graft in the cavity of first centrifuging tube 1, and the other end is pegged graft in the cavity of second centrifuging tube 2, and it is adjustable in the grafting degree of depth of the one end of first centrifuging tube 1 that straw 3 is pegged graft in second centrifuging tube 2's one end and 2 fixed connection of second centrifuging tube, and concrete effect is seen in figure 1, figure 2 and figure 3.

In this application, when carrying out the PRP preparation through this device, pierce through the seal closure 4 of first centrifuging tube 1 with the patient's blood of collection earlier through the syringe, carry to in the cavity of first centrifuging tube 1, install first centrifuging tube 1 again in the centrifuge, set for centrifugal time and centrifugal force after start-up centrifuge centrifugation, first centrifugation back, blood in the first centrifuging tube 1 divide into the supernatant of upper strata and the red blood cell 7 of lower floor, wherein the supernatant of upper strata is centrifugation target liquid 8 for the first time. Then adjust the grafting degree of depth of straw 3 in first centrifuging tube 1, make the height of straw 3 be higher than about 1 ~ 2mm of the layering face in first centrifuging tube 1, the closing cap 4 of second centrifuging tube 2 is impaled through the syringe to the rethread, extracts the air in the 2 cavities of second centrifuging tube, makes the first centrifugation target liquid 8 in first centrifuging tube 1 pass through in the cavity of straw 3 entering second centrifuging tube 2.

Compared with the prior PRP preparation device, take out the red blood cell 7 of lower floor from the centrifuging tube after the centrifugation for the first time, keep centrifugation target liquid 8 for the first time in the centrifuging tube, extract the in-process of lower floor red blood cell 7, want not also under the condition of taking out centrifugation target liquid 8 for the first time, it is difficult to realize to take out the red blood cell 7 of lower floor totally, simultaneously the liquid level of lower floor red blood cell 7 descends when the extraction, the liquid level of centrifugation target liquid 8 for the first time also descends in step, replace red blood cell 7 liquid level before, because still remain some red blood cells 7 on the pipe wall of centrifuging tube, when the liquid level of centrifugation target liquid 8 for the first time carries out the position filling to the liquid level of red blood cell 7, can fuse with the red blood cell 7 that remains on the pipe wall, thereby lead to after the centrifugation for the first time, lower floor red blood cell 7 extracts unclean, still partly remain in centrifugation target liquid 8 for the first time, and then influence the final preparation effect of PRP preparation.

And in this application, after centrifugation for the first time, extract the first centrifugation target liquid 8 on first centrifuging tube 1 upper strata to second centrifuging tube 2 in, because about 1 ~ 2mm of the high level apart from the layering in the first centrifuging tube 1 of straw 3, consequently, when extracting first centrifugation target liquid 8, can not also aspirate the red blood cell 7 of lower floor to in the second centrifuging tube 2, thereby make and can not remain red blood cell 7 in the first centrifugation target liquid 8, solve red blood cell 7 and take out unclean problem, and then promote PRP's preparation effect.

After the first centrifugal target liquid 8 is extracted into the second centrifugal tube 2, the first centrifugal tube 1 and the second centrifugal tube 2 are turned over, the second centrifugal tube 2 is installed in the centrifuge again, the centrifuge is started after the centrifugation time and the centrifugal force are reset, after the second centrifugation, the blood in the second centrifugal tube 2 is divided into the supernatant 9 at the upper layer and the PRP at the lower layer, wherein the PRP at the lower layer is the second centrifugal target liquid 10. And finally, piercing the sealing cover 4 of the second centrifuge tube 2 through a syringe, and extracting the secondary centrifugal target liquid 10 in the second centrifuge tube 2 to complete the preparation of the PRP.

It is foreseen that: because first centrifuging tube 1 and second centrifuging tube 2 pass through straw 3 intercommunication, consequently when installing first centrifuging tube 1 in centrifuge and centrifugating, second centrifuging tube 2 still keeps the state of being connected with first centrifuging tube 1, and first centrifuging tube 1 and second centrifuging tube 2 are centrifugation in centrifuge simultaneously promptly, and when installing second centrifuging tube 2 in centrifuge and centrifugating, first centrifuging tube 1 also centrifugates in centrifuge together with second centrifuging tube 2 equally.

Compared with the prior PRP preparation device, the hole is opened on the centrifuge tube, the needle is inserted into the centrifuge tube through the opened through hole, blood is conveyed into the centrifuge tube, the lower layer red blood cells 7 after the first centrifugation are taken out from the centrifuge tube, and the PRP after the second centrifugation is taken out from the centrifuge tube, the centrifuge tube is exposed in the external environment, thereby greatly increasing the risk of external pollution in the PRP preparation process.

In the application, the sealing cover 4 of the first centrifuge tube 1 is pierced through the syringe, blood is conveyed to the first centrifuge tube 1, the syringe pierces the sealing cover 4 of the second centrifuge tube 2, air in the cavity of the second centrifuge tube 2 is extracted, the first centrifugal target liquid 8 is extracted into the second centrifuge tube 2, and the syringe pierces the sealing cover 4 of the second centrifuge tube 2, and the second centrifugal target liquid 10 is extracted. First centrifuging tube 1 and second centrifuging tube 2 all are in encapsulated situation at this in-process to avoid the blood in first centrifuging tube 1 and the second centrifuging tube 2 and external air contact, very big reduction PRP preparation process by external contaminated risk.

In this embodiment, first centrifuging tube 1 and second centrifuging tube 2 are the conical tube, and the tip end of closing cap 4 at first centrifuging tube 1 and second centrifuging tube 2 is sealed the cavity of first centrifuging tube 1 and second centrifuging tube 2, and straw 3 communicates the butt end of first centrifuging tube 1 and second centrifuging tube 2, and the concrete effect is shown in figure 1. The first centrifuge tube 1 and the second centrifuge tube 2 are both designed to be conical tubes, because the conical tubes have the best centrifugal effect in the centrifuge, the PRP preparation effect is better. The butt end of first centrifuging tube 1 and second centrifuging tube 2 sets up relatively, and straw 3 communicates the butt end of first centrifuging tube 1 and second centrifuging tube 2 to make the first centrifugation target liquid 8 in first centrifuging tube 1 can get into in the second centrifuging tube 2 through straw 3. All be provided with sealing cap 4 at the tip of first centrifuging tube 1 and second centrifuging tube 2 to make the syringe pierce through sealing cap 4 after, it is more convenient to the suction of liquid in first centrifuging tube 1 and the second centrifuging tube 2.

In this embodiment, the cavity volume of first centrifuging tube 1 can be greater than the cavity volume of second centrifuging tube 2, also can be less than or equal to the cavity volume of second centrifuging tube 2, specifically can be according to the needs of in-service use. Since in the present application, the first centrifuge tube 1 is used to load the collected patient's blood, and the second centrifuge tube 2 is used to load the first centrifugation target liquid 8 separated from the blood in the first centrifuge tube 1, the amount of liquid required to be loaded in the second centrifuge tube 2 is definitely less than that required to be loaded in the first centrifuge tube 1. Because bigger volume means that need more production materials to make, so in this device, preferably set the volume of second centrifuging tube 2 to be less than the volume of first centrifuging tube 1 to reduce the required production materials of this device in production, and then reduce the manufacturing cost of this device, and save the resource, can also distinguish first leaving the spool 1 and second centrifuging tube 2 simultaneously, prevent to mix both when using.

In this embodiment, the suction tube 3 is provided with an external thread 31, and the butt end of the first centrifugal tube 1 is provided with a threaded hole 52 matched with the external thread 31, for a specific effect, see fig. 4 and 5. Be equipped with external screw thread 31 on the outer wall of straw 3, the butt end of first centrifuging tube 1 be equipped with the 3 outer walls of straw on external screw thread 31 complex screw hole 52 to through the cooperation of the external screw thread 31 of the 3 outer walls of straw and the screw hole 52 of the 1 butt end of first centrifuging tube, realize the regulation of the plug-in degree of depth of straw 3 in first centrifuging tube 1. Because the one end of straw 3 and the butt end spiro union of first centrifuging tube 1, the other end and the butt end fixed connection of second centrifuging tube 2, consequently when the grafting degree of depth of straw 3 in first centrifuging tube 1 needs to be adjusted, only need rotate second centrifuging tube 2, just can drive straw 3 and reciprocate in first centrifuging tube 1 to make the regulation convenient and fast of the grafting degree of depth of straw 3 in first centrifuging tube 1, and then make the use of this device more convenient.

In this application, it will make the regulation that the depth of interpolation can of straw 3 in first centrifuging tube 1, because the composition content that contains in different patients 'blood is different, consequently to different patients' blood, even guarantee to carry to the blood volume the same in first centrifuging tube 1, after the centrifugation for the first time, the liquid level height of centrifugation target liquid 8 for the first time in first centrifuging tube 1 also has the difference, and straw 3 will guarantee to draw centrifugation target liquid 8 for the first time in first centrifuging tube 1 to second centrifuging tube 2 in, guarantee again simultaneously not to aspirate red blood cell 7 in first centrifuging tube 1 to second centrifuging tube 2 in, the optimal condition makes the height of straw 3 be higher than about 1 ~ 2mm of layering in first centrifuging tube 1.

If the insertion length of the suction tube 3 in the first centrifuge tube 1 is fixed, the distance between the height of the suction tube 3 in the first centrifuge tube 1 and the layered surface in the first centrifuge tube 1 is more than 1-2 mm, which may cause incomplete extraction of the first centrifugal target liquid 8 in the first centrifuge tube 1, and further affect the preparation effect of the PRP, by using the same preparation device for different patients; it may also occur that the height of the pipette 3 in the first centrifuge tube 1 is lower than the stratification plane in the first centrifuge tube 1, so that the pipette 3 also draws the red blood cells 7 in the lower layer in the first centrifuge tube 1 into the second centrifuge tube 2, which affects the second centrifugation effect.

Consequently in this application, the grafting degree of depth of straw 3 in first centrifuging tube 1 can be adjusted, just can be according to different patient's blood, after centrifugation for the first time, when the liquid level height of centrifugation target liquid 8 for the first time in first centrifuging tube 1 changes, adjust the grafting degree of depth of straw 3 in first centrifuging tube 1 at any time, guarantee that the height of straw 3 in first centrifuging tube 1 is higher than the level of stratification face 1 ~ 2mm in first centrifuging tube 1 all the time, thereby make this preparation facilities's application scope wider, and the practicality is stronger.

Because the first centrifugation target liquid 8 in first centrifuging tube 1 is after extracting to second centrifuging tube 2, red blood cell 7 still remains in first centrifuging tube 1, when carrying out the secondary centrifugation to second centrifuging tube 2, need overturn first centrifuging tube 1 and second centrifuging tube 2 and come over. It is foreseen that: after first centrifuging tube 1 overturns, the height of straw 3 in first centrifuging tube 1 will be greater than the height of 7 liquid levels of red blood cells to make behind the upset of first centrifuging tube 1, red blood cells 7 can not get into in second centrifuging tube 2 through straw 3. Simultaneously because the bore of straw 3 is less, consequently after first centrifuging tube 1 and the upset of second centrifuging tube 2, all place first centrifuging tube 1 and second centrifuging tube 2 and carry out the secondary centrifugation in centrifuge, the red blood cell 7 in first centrifuging tube 1 is thrown into the possibility in straw 3 also very little in the centrifugation process to make red blood cell 7 can not get into in the second centrifuging tube 2 through straw 3.

In this embodiment, the butt end of first centrifuging tube 1 is equipped with the opening with cavity and external intercommunication, still includes the butyl plug 5 that carries out the sealing to the opening of first centrifuging tube 1 butt end, is equipped with the inlet port 51 with the cavity and external intercommunication of first centrifuging tube 1 on the butyl plug 5, and on butyl plug 5 was located to screw hole 52, the concrete effect is shown in fig. 4 and fig. 6. Be equipped with the opening at first centrifuging tube 1's butt end, the opening communicates first centrifuging tube 1's cavity and external world. Simultaneously be equipped with butyl rubber stopper 5 at the butt end of first centrifuging tube 1, seal the opening through butyl rubber stopper 5, be equipped with inlet port 51 on butyl rubber stopper 5, make the air in the external world can get into first centrifuging tube 1 through inlet port 51.

It seals to set up the opening of butyl plug 5 to first centrifuging tube 1 butt end, sets up the inlet port 51 with external intercommunication again at butyl plug 5 because in this application, be through the air in the syringe extraction second centrifuging tube 2 cavities, makes first centrifugation target liquid 8 in first centrifuging tube 1 pass through in the cavity that straw 3 got into second centrifuging tube 2. The reason why the first centrifugation target liquid 8 enters the second centrifuge tube 2 through the suction tube 3 is that the air pressure in the second centrifuge tube 2 is smaller than the air pressure in the first centrifuge tube 1 after the syringe pumps the air in the cavity of the second centrifuge tube 2.

If first centrifuging tube 1 is in completely sealed state, back in first centrifugation target liquid 8 in first centrifuging tube 1 gets into second centrifuging tube 2, atmospheric pressure in first centrifuging tube 1 reduces, atmospheric pressure increase in second centrifuging tube 2, when atmospheric pressure in first centrifuging tube 1 and the atmospheric pressure in second centrifuging tube 2 are equal, first centrifugation target liquid 8 can't get into in second centrifuging tube 2 again, lead to the extraction of first centrifugation target liquid 8 in first centrifuging tube 1 incomplete, and then influence the preparation effect of PRP. Consequently need set up the inlet port 51 with external intercommunication on first centrifuging tube 1, when making atmospheric pressure in first centrifuging tube 1 reduce, the atmospheric air can be through the inlet port 51 entering first centrifuging tube 1 in, guarantees that the atmospheric pressure in first centrifuging tube 1 is greater than the atmospheric pressure in second centrifuging tube 2.

It is foreseen that: in order to prevent the blood in first centrifuging tube 1 and the too much contact of external environment, lead to blood in first centrifuging tube 1 to be contaminated by external environment, influence the result of use of the PRP of preparing, therefore the aperture of inlet port 51 can not set up too big. It is also foreseen that: because butyl rubber stopper 5 possesses certain elasticity, consequently suction pipe 3 need not be in this application with butyl rubber stopper 5 screw-thread fit, set up on butyl rubber stopper 5 screw hole 52 also can be the through-hole, compress tightly the external screw thread 31 of suction pipe 3 through the elasticity of butyl rubber stopper 5 self, when the grafting degree of depth of suction pipe 3 in first centrifuging tube 1 needs to be adjusted, hard push down suction pipe 3 or draw outward can realize.

In this embodiment, an air filter 53 is disposed at the bottom of the air inlet 51, and the air filter 53 is used to filter the air entering the cavity of the first centrifugal tube 1 from the outside, as shown in fig. 6. No matter how big that the aperture of inlet port 51 set up, in can all take into second centrifuging tube 2 with the first centrifugation target liquid 8 in first centrifuging tube 1, just need the outside air to pass through inlet port 51 and get into in first centrifuging tube 1 to blood to in the first centrifuging tube 1 causes the pollution of certain degree. Consequently in this application, the bottom of inlet port 51 is equipped with air cleaner 53, and when the outside air passed through inlet port 51 and got into the cavity of first centrifuging tube 1, all can pass through air cleaner 53's filtration to reduce the pollution of external environment to blood in the first centrifuging tube 1.

In this embodiment, still include to be used for carrying out spacing solid fixed ring 6 to the butt end of first centrifuging tube 1 and the butt end of second centrifuging tube 2, the butt end of first centrifuging tube 1 and second centrifuging tube 2 all is equipped with spacing groove 11, and solid fixed ring 6's both ends are pegged graft with spacing groove 11 of first centrifuging tube 1 and second centrifuging tube 2 respectively, and the concrete effect is seen in figure 1, figure 4 and figure 5. The butt end at first centrifuging tube 1 and second centrifuging tube 2 all is equipped with spacing groove 11, when the installation of solid fixed ring 6 at first centrifuging tube 1 and 2 butt ends of second centrifuging tube, rotate second centrifuging tube 2 earlier, external screw thread 31 through 3 outer walls of straw cooperates with the screw hole 52 of 1 butt end of first centrifuging tube, make the distance between 2 butt ends of second centrifuging tube and 1 butt end of first centrifuging tube be greater than solid fixed ring 6's height, peg graft spacing groove 11 at 1 butt end of first centrifuging tube with solid fixed ring 6 one end again, then rotate second centrifuging tube 2, make 2 butt ends of second centrifuging tube and 1 butt end of first centrifuging tube be close to each other, peg graft in spacing groove 11 of 2 butt ends of second centrifuging tube until the other end of solid fixed ring 6.

When needs hold solid fixed ring 6 and take down from first centrifuging tube 1 and 2 butt ends of second centrifuging tube, only need to rotate second centrifuging tube 2, make 2 butt ends of second centrifuging tube and first centrifuging tube 1 butt end keep away from each other, until the distance between 2 butt ends of second centrifuging tube and 1 butt end of first centrifuging tube is greater than solid fixed ring 6's height, when solid fixed ring 6's the other end no longer pegs graft with the spacing groove 11 of 2 butt ends of second centrifuging tube, then can take solid fixed ring 6's one end out from the spacing groove 11 of 1 butt end of first centrifuging tube, accomplish solid fixed ring 6's dismantlement.

It so sets up solid fixed ring 6, because only connect through straw 3 between first centrifuging tube 1 and the second centrifuging tube 2, and the diameter of straw 3 is less for the diameter of first centrifuging tube 1 and second centrifuging tube 2, when transporting first centrifuging tube 1 and second centrifuging tube 2, stronger external force maloperation is on first centrifuging tube 1 or second centrifuging tube 2, make 3 fractures of straw between first centrifuging tube 1 and the second centrifuging tube 2 easily, thereby lead to this device can't use. Peg graft respectively in the spacing groove 11 of first centrifuging tube 1 and the 2 butt ends of second centrifuging tube through the both ends of solid fixed ring 6, make solid fixed ring 6 carry on spacingly to first centrifuging tube 1 and second centrifuging tube 2 between first centrifuging tube 1 and second centrifuging tube 2, prevent that first centrifuging tube 1 or second centrifuging tube 2 from bumping down at stronger external force mistake, straw 3 produces the rupture to strengthen the structural strength of this device.

It is foreseen that: when solid fixed ring 6 was installed in the butt end of first centrifuging tube 1 and second centrifuging tube 2, solid fixed ring 6 one end and 1 butt of first centrifuging tube, the other end and 2 butts of second centrifuging tube, and the distance between second centrifuging tube 2 and the first centrifuging tube 1 can't change this moment, and the grafting degree of depth of straw 3 in first centrifuging tube 1 can't change promptly. Therefore, when the device is not used, the fixing ring 6 is arranged at the butt ends of the first centrifugal tube 1 and the second centrifugal tube 2, and when the device is used, the fixing ring 6 is detached.

In the present embodiment, the fixing ring 6 is provided with a plug 61 for sealing the air inlet hole 51, as shown in fig. 7. In order to prevent that first centrifuging tube 1 just because inlet hole 51 communicates with the external world before using, lead to first centrifuging tube 1's cavity to be polluted by external environment, in this application, solid fixed ring 6 still is provided with end cap 61. When the device is not used, the fixing ring 6 is arranged at the butt ends of the first centrifuge tube 1 and the second centrifuge tube 2, and the air inlet 51 is sealed by the plug 61 on the fixing ring 6, so that the cavity of the first centrifuge tube 1 is prevented from being exposed to the external environment; when the device is used, the fixing ring 6 is detached from the butt ends of the first centrifuge tube 1 and the second centrifuge tube 2, and the plug 61 on the fixing ring 6 does not seal the air inlet hole 51 any more.

In this embodiment, the sealing cover 4 includes a soft rubber plug 41 for piercing by a needle, and a sealing aluminum cap 42 for fixing the soft rubber plug 41 to the ends of the first centrifuge tube 1 and the second centrifuge tube 2, and the sealing aluminum cap 42 exposes the middle part of the soft rubber plug 41, and the specific effect is shown in fig. 5. Sealing cover 4 includes soft plug 41 and seals aluminum cap 42, seals aluminum cap 42 parcel in the soft plug 41 outside to when sealing aluminum cap 42 and fixing the tip at first centrifuging tube 1 and second centrifuging tube 2, also fix the tip at first centrifuging tube 1 and second centrifuging tube 2 simultaneously with soft plug 41. However, the sealing aluminum cap 42 is not completely wrapped around the soft rubber plug 41, but exposes the middle of the soft rubber plug 41, so that the needle of the syringe can penetrate through the exposed part of the soft rubber plug 41 and extend into the first centrifuge tube 1 and the second centrifuge tube 2. Compare conventional through with aluminium foil sealing strip glue seal on the opening that needs are sealed, fix soft plug 41 at the sealed mode of first centrifuging tube 1 and 2 tip of second centrifuging tube through sealing aluminium cap 42, its fixed and sealed effect is better to prevent that the blood in first centrifuging tube 1 and the second centrifuging tube 2 from spilling, reduce the risk that produces medical accident.

The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a component of 8230means that the element does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A PRP production apparatus, comprising: comprises a first centrifugal tube (1), a second centrifugal tube (2) and a suction tube (3) which communicates the cavities of the first centrifugal tube (1) and the second centrifugal tube (2); first centrifuging tube (1) and second centrifuging tube (2) one end all are equipped with sealing cap (4) that can supply the syringe needle to impale, straw (3) one end peg graft in the cavity of first centrifuging tube (1), the other end peg graft in the cavity of second centrifuging tube (2), it is adjustable in the grafting degree of depth of the one end of first centrifuging tube (1) in first centrifuging tube (1) to peg graft straw (3), peg graft in the one end of second centrifuging tube (2) and second centrifuging tube (2) fixed connection.

2. A PRP preparing apparatus as set forth in claim 1, wherein: first centrifuging tube (1) and second centrifuging tube (2) are the conical tube, seal closure (4) are in the cavity of first centrifuging tube (1) and second centrifuging tube (2) is sealed to the tip end of first centrifuging tube (1) and second centrifuging tube (2), straw (3) will the butt end intercommunication of first centrifuging tube (1) and second centrifuging tube (2).

3. A PRP production apparatus as set forth in claim 2, wherein: be equipped with external screw thread (31) on straw (3), the butt end of first centrifuging tube (1) be equipped with external screw thread (31) complex screw hole (52).

4. A PRP production apparatus as set forth in claim 3, wherein: the butt end of first centrifuging tube (1) is equipped with the opening with cavity and external intercommunication, still includes right the opening of first centrifuging tube (1) butt end carries out sealed butyl plug (5), be equipped with on butyl plug (5) with the inlet port (51) of cavity and external intercommunication of first centrifuging tube (1), screw hole (52) are located on the butyl plug (5).

5. A PRP producing apparatus according to claim 4, wherein: air inlet (51) bottom is equipped with air cleaner (53), air cleaner (53) are used for getting into to the external world the air of first centrifuging tube (1) cavity filters.

6. A PRP production apparatus according to claim 4, wherein: still including being used for right the butt end of first centrifuging tube (1) and the butt end of second centrifuging tube (2) carry out spacing solid fixed ring (6), the butt end of first centrifuging tube (1) and second centrifuging tube (2) all is equipped with spacing groove (11), the both ends of solid fixed ring (6) respectively with spacing groove (11) of first centrifuging tube (1) and second centrifuging tube (2) are pegged graft.

7. A PRP producing apparatus according to claim 6, wherein: and a plug (61) for sealing the air inlet (51) is arranged on the fixing ring (6).

8. A PRP preparing apparatus as set forth in claim 1, wherein: sealing cap (4) are including soft rubber stopper (41) that can supply the syringe needle to pierce through to and fix soft plug (41) first centrifuging tube (1) and second centrifuging tube (2) tip seal aluminum cap (42), it will to seal aluminum cap (42) the middle part of soft plug (41) exposes.

Images