CN213432220U - Novel special infusion ware of stem cell - Google Patents

Abstract

The utility model discloses a novel special infusion ware of stem cell, including first pipe, the second pipe, the third pipe, the upper end of first pipe is connected with stem cell blood transfusion bag, be equipped with first clip on the first pipe, the upper end of second pipe is connected with the normal saline bag, be equipped with the second clip on the second pipe, be equipped with the third clip on the third pipe, the lower extreme of third pipe is equipped with the blood transfusion drip cup, install the fixed plate on the inside lateral wall of blood transfusion drip cup, install the filter screen between the fixed plate, solid fixed ring is installed to one side of fixed plate, blood transfusion drip cup lower extreme is connected with the fourth pipe, be equipped with blood transfusion flow velocity adjuster on the fourth pipe, the lower extreme of fourth pipe has the fifth pipe through first screw interface connection, the lower extreme of fifth pipe is equipped with second screw interface. The utility model discloses can conveniently infuse stem cell and wash stem cell blood storage bag repeatedly, really the whole inputs of cell in the blood storage bag internal, reduce nurse's work load and operating time simultaneously.

Description

Novel special infusion ware of stem cell

Technical Field

The utility model relates to the technical field of medical equipment, in particular to novel special infusion ware of stem cell.

Background

Hematopoietic stem cell transplantation has become a standardized treatment means for radically treating malignant blood diseases and aplastic anemia at present. The source of stem cells is very abundant and is present in various tissues and organs throughout the body. Hematopoietic stem cells and mesenchymal cells are among the commonly used stem cells. Hematology is often infused with stem cells. In the transplantation process, the collection quantity of the peripheral stem cells is the key of successful transplantation, and the hematopoietic stem cells can play an important role in hematopoietic reconstruction only after being input into a patient body. When poor cell implantation occurs after transplantation or when anti-host disease occurs after transplantation, the mesenchymal cells are infused, and sufficient mesenchymal cells are infused into the body of a patient, so that the key effect on the treatment of poor cell implantation after transplantation or anti-host disease after transplantation can be achieved. Therefore, how to ensure the safe and effective smooth infusion of stem cells and avoid or reduce complications is directly related to the success or failure of transplantation.

At present, no instrument specially used for infusing stem cells is clinically used, the infusion is not standard, and some hospitals use a common blood transfusion device for infusion or directly use an infusion device without a filter for infusion. In practice, when the stem cells are infused by the blood transfusion device, the stem cells are easily adhered to the filter membrane to cause the passing obstacle; but a small amount of residual stem cell suspension in the cell collection bag after the infusion is finished, or a small amount of cells are adhered in the collection bag, the collection bag needs to be washed by normal saline, the loss of the stem cells is reduced as much as possible, but because the collection bag can not be punctured repeatedly, the interface of the collection bag is easy to cause pollution or the stem cells leak, and the workload and the operation time of nurses are increased.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a novel infusion device for stem cells, which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel transfusion device special for stem cells comprises a first conduit, a second conduit and a third conduit, wherein the first conduit, the second conduit and the third conduit form a Y-shaped tube, the upper end of the first conduit is connected with a stem cell transfusion bag, the first conduit is provided with a first clamp, the upper end of the second conduit is connected with a physiological saline bag, the second conduit is provided with a second clamp, the third conduit is provided with a third clamp, the lower end of the third conduit is provided with a transfusion drip cup, the transfusion drip cup is cylindrical, a fixing plate is arranged on the inner side wall of the transfusion drip cup, a filter screen is arranged between the fixing plates, the filter screen is funnel-shaped, one side of the fixing plate, which is far away from the transfusion drip cup, is provided with a fixing ring, the upper edge of the filter screen is arranged in a groove formed by the fixing plate and the fixing ring, and the lower end of the transfusion drip cup is connected with a fourth conduit, the fourth pipe is provided with a blood transfusion flow rate regulator, the lower end of the fourth pipe is connected with a fifth pipe through a first spiral connector, and the lower end of the fifth pipe is provided with a second spiral connector.

In this embodiment, preferably, one end of the first conduit is provided with a sharp plug, and the first conduit is inserted into the stem cell transfusion bag through the sharp plug.

In this embodiment, preferably, a sharp plug is provided at one end of the second conduit, and the second conduit is inserted into the saline bag through the sharp plug.

In this embodiment, it is preferable that the total length of the first screw interface from the sharp plug of the first conduit to the fourth conduit is 2 meters.

In this embodiment, it is preferable that the fifth guide pipe has a length of 1 meter.

In this embodiment, preferably, the diameter of the filtering hole of the filter screen is 150-260 μm.

Compared with the prior art, the utility model discloses following beneficial effect has: the novel transfusion device special for stem cells is characterized in that a first catheter, a first clamp, a second catheter, a second clamp, a third catheter and a third clamp are arranged, the first catheter is inserted into a stem cell transfusion bag, the second catheter is inserted into a normal saline bag, the first clamp on the first catheter is closed before transfusion, the second clamp on the second catheter is opened, the third clamp on the third catheter is opened, a transfusion flow rate regulator on the fourth catheter is opened, a transfusion tube is washed, during transfusion, the first clamp on the first catheter is opened, the second clamp on the second catheter is closed, the transfusion flow rate regulator is opened to perform transfusion of cells, after transfusion is finished, the third clamp on the third catheter is closed, the second clamp on the second catheter is opened, normal saline in the normal saline bag enters the stem cell bag, the first clamp on the first catheter and the second clamp on the second catheter are closed, vibrate the normal saline in the stem cell blood transfusion bag thrice repeatedly, then open first clip on the first pipe, drop into the normal saline in the stem cell blood transfusion bag in the health, when infusion blood is sticky, cause the blood transfusion not smooth, can close first clip on the first pipe, open the second clip on the second pipe, wash the blood transfusion drip cup with normal saline, when blood transfusion drip cup and fourth pipe and fifth pipe are unobstructed, can close the second clip on the second pipe, open first clip on the first pipe, can conveniently infuse the stem cell and wash stem cell blood storage bag repeatedly, really the whole entrys of cell in the blood storage bag is internal, reduce nurse's work load and operating time simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of a novel infusion device dedicated for stem cells of the present invention;

fig. 2 is a schematic structural diagram of a part a of the novel infusion device special for stem cells of the present invention.

In the figure: 1. a stem cell transfusion bag; 2. a saline bag; 3. a first conduit; 4. a first clip; 5. a second conduit; 6. a second clip; 7. a third conduit; 8. a third clip; 9. a transfusion drip cup; 10. a fixing plate; 11. a fixing ring; 12. filtering with a screen; 13. a fourth conduit; 14. a blood transfusion flow rate regulator; 15. a first screw interface; 16. a fifth conduit; 17. a second screw interface.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, a novel transfusion device dedicated for stem cells comprises a first conduit 3, a second conduit 5, and a third conduit 7, wherein the first conduit 3, the second conduit 5, and the third conduit 7 form a Y-shaped tube, the upper end of the first conduit 3 is connected with a stem cell transfusion bag 1, the first conduit 3 is provided with a first clip 4, the upper end of the second conduit 5 is connected with a physiological saline bag 2, the second conduit 5 is provided with a second clip 6, the third conduit 7 is provided with a third clip 8, the lower end of the third conduit 7 is provided with a transfusion drip cup 9, the transfusion drip cup 9 is cylindrical, a fixing plate 10 is mounted on the inner side wall of the transfusion drip cup 9, a filter screen 12 is mounted between the two fixing plates 10, the filter screen 12 is funnel-shaped, one side of the fixing plate 10 away from the transfusion drip cup 9 is provided with a fixing ring 11, the upper edge of the filter screen 12 is disposed in a groove formed by the fixing plate 10 and the, and the lower end of the transfusion drip cup 9 is connected with a fourth conduit 13, the fourth conduit 13 is provided with a transfusion flow rate regulator 14, the lower end of the fourth conduit 13 is connected with a fifth conduit 16 through a first spiral connector 15, and the lower end of the fifth conduit 16 is provided with a second spiral connector 17.

One end of the first conduit 3 is provided with a sharp plug, and the first conduit 3 is inserted into the stem cell blood transfusion bag 1 through the sharp plug, so that the first conduit 3 can be conveniently inserted into the stem cell blood transfusion bag 1.

One end of the second conduit 5 is provided with a sharp plug, and the second conduit 5 is inserted into the saline bag 2 through the sharp plug, so that the second conduit 5 can be conveniently inserted into the saline bag 2.

The total length of the sharp plug of the first tube 3 to the first screw interface 15 of the fourth tube 13 is 2 meters, which facilitates the transfusion of the stem cell-specific transfuser.

The fifth catheter 16 is 1 m in length and is convenient for connecting and fixing catheters such as PICC or CVC.

The diameter of the filtering holes of the filter screen is 150-260 microns, so that large cell clusters aggregated in cell sap can be conveniently filtered.

It should be noted that the utility model relates to a novel special infusion device for stem cells, when in use, the first catheter 3 is inserted into the stem cell blood transfusion bag 1, the second catheter 5 is inserted into the normal saline bag 2, before the infusion, the first clamp 4 on the first catheter 3 is closed, the second clamp 6 on the second catheter 5 is opened, the third clamp 9 on the third catheter 7 is opened, the blood transfusion flow rate regulator 14 on the fourth catheter 13 is opened to wash the infusion tube, during the infusion, the first clamp 4 on the first catheter 3 is opened, the second clamp 6 on the second catheter 5 is closed, the blood transfusion flow rate regulator 14 is opened to carry out the infusion of cells, after the infusion is completed, the third clamp 8 on the third catheter 7 is closed, the second clamp 6 on the second catheter 5 is opened, the normal saline in the normal saline bag 2 enters into the stem cell blood transfusion bag 1, the first clamp 4 on the first catheter 3 and the second clamp 6 on the second catheter 5 are closed, the normal saline in the stem cell blood transfusion bag 1 is repeatedly vibrated for three times, then the first clamp 4 on the first conduit 3 is opened, the normal saline in the stem cell blood transfusion bag 1 is dripped into a body, when the transfusion blood is viscous and causes unsmooth blood transfusion, the first clamp 4 on the first conduit 3 can be closed, the second clamp 6 on the second conduit 5 is opened, the transfusion drip cup 9 is washed by the normal saline, when the transfusion drip cup 9, the fourth conduit 13 and the fifth conduit 16 are unobstructed, the second clamp 6 on the second conduit 5 can be closed, the first clamp 4 on the first conduit 3 is opened, the stem cell can be conveniently transfused and the stem cell blood storage bag can be conveniently and repeatedly washed, all the cells in the blood storage bag are really infused into the body, simultaneously, the workload and the operation time of a nurse are reduced, the drip cup 9 is cylindrical, a fixing plate 10 is arranged on the inner side wall of the transfusion drip cup 9, a filter screen 12 is arranged between the two fixing plates 10, a fixing ring 11 is arranged on one side of the fixing plate 10 far away from the transfusion drip cup 9, the upper edge of the filter screen 12 is arranged in a groove formed by the fixing plate 10 and the fixing ring 11, the filter screen 12 is tightly contacted with the inner circumference of the transfusion drip cup 9 to prevent the blood from passing through a gap between the filter screen 12 and the inner circumference of the transfusion drip cup 9, the filter screen 12 is funnel-shaped, the outer circumference of the funnel-shaped upper edge is tightly contacted with the inner circumference of the transfusion drip cup 9, the lower part of the funnel-shaped upper edge is in preset interval with the inner circumference of the transfusion drip cup 9 to increase the filtering area, the diameter of a filtering hole of the filter screen is 150 and 260 microns, so that large cell clusters aggregated in cell sap can be filtered, all stem cells are output, the whole process has no repeated puncture, the pollution probability is avoided, the whole stem cell transfusion device is 3, the first catheter 3 to the fourth catheter 13 are 2 meters long, the lower end of the fourth catheter 13 is connected with a fifth catheter 16 with the length of 1 meter, and the tail end of the fifth catheter 16 is provided with a second spiral connector 17 which is convenient for connecting a venous access catheter. When the stem cells are infused in a ward, the fifth catheter 16 with the length of one meter can be detached when long catheter infusion is not needed, and the first spiral connector 15 at the tail end of the fourth catheter 13 can still be safely connected with the venous catheter, so that the use is convenient.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a novel special infusion ware of stem cell, includes first pipe (3), second pipe (5), third pipe (7), its characterized in that, first pipe (3), second pipe (5), third pipe (7) form the Y type pipe, the upper end of first pipe (3) is connected with stem cell transfusion bag (1), just be equipped with first clip (4) on first pipe (3), the upper end of second pipe (5) is connected with physiological saline bag (2), just be equipped with second clip (6) on second pipe (5), be equipped with third clip (8) on third pipe (7), just the lower extreme of third pipe (7) is equipped with transfusion drip cup (9), transfusion drip cup (9) are cylindric, and install fixed plate (10) on the inside lateral wall of transfusion drip cup (9), two install filter screen (12) between fixed plate (10), filter screen (12) are for leaking hopper-shaped, one side that transfusion drip cup (9) was kept away from in fixed plate (10) installs solid fixed ring (11), the top edge of filter screen (12) is established in the recess that fixed plate (10) and solid fixed ring (11) formed, just the lower extreme of transfusion drip cup (9) is connected with fourth pipe (13), be equipped with blood transfusion flow rate regulator (14) on fourth pipe (13), just the lower extreme of fourth pipe (13) is connected with fifth pipe (16) through first screwed joint (15), the lower extreme of fifth pipe (16) is equipped with second screwed joint (17).

2. The novel stem cell dedicated infusion device according to claim 1, wherein: one end of the first conduit (3) is provided with a sharp plug, and the first conduit (3) is inserted into the stem cell transfusion bag (1) through the sharp plug.

3. The novel stem cell dedicated infusion device according to claim 1, wherein: one end of the second conduit (5) is provided with a sharp plug, and the second conduit (5) is inserted into the physiological saline bag (2) through the sharp plug.

4. The novel stem cell dedicated infusion device according to claim 1, wherein: the total length of the sharp plug of the first conduit (3) to the first screw interface (15) of the fourth conduit (13) is 2 meters.

5. The novel stem cell dedicated infusion device according to claim 1, wherein: the fifth conduit (16) is 1 meter in length.

6. The novel stem cell dedicated infusion device according to claim 1, wherein: the diameter of the filtering hole of the filter screen is 150-260 microns.

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