CN107617131A - Combined type carries the marrow filter of multi-filtering function - Google Patents

Abstract

The invention discloses the marrow filter that combined type carries multi-filtering function, including beaker, transition joint, connecting tube, collection bag, fixed cover, filter shell, spacing ring, the copper filter screen of one-level, threaded collar, the copper filter screen of two level, fixed cover, vibrator, aseptic closure, the combined type carries the marrow filter of multi-filtering function, clever structure, it is powerful, the effect to be cooperated first by built-in double filtration mechanism, substantially reduce fat and marrow chip, greatly improve filter effect, secondly by detachable collecting mechanism, it can facilitate and the bone marrow cell liquid after filtering is collected, finally can also be as needed, filter effect is improved by slightly shaking mode, eventually through above-mentioned, brought great convenience to bone marrow cell filtering, beneficial to the popularization and application of clinic.

Description

Combined bone marrow filter with multiple filter functions

technical field

The invention relates to the technical field of medical devices, in particular to a combined bone marrow filter with multiple filtering functions.

Background technique

Hematopoietic stem cell transplantation is currently an effective method for curing hematological malignancies. The transplantation modes include peripheral blood hematopoietic stem cell transplantation, bone marrow transplantation and mixed transplantation; bone marrow transplantation and mixed transplantation require collection of donor bone marrow hematopoietic stem cells. Generally, bone marrow collection is performed at the donor's posterior iliac or anterior superior iliac spine under epidural anesthesia. Bone marrow blood is collected with an empty needle, and the collection volume is 10-15ml/kg (recipient's body weight). In addition to blood cell components such as bone marrow hematopoietic stem cells, white blood cells, red blood cells, and platelets, there are also fat and bone marrow debris. Before infusion to the recipient, the bone marrow blood needs to be filtered to remove fat and bone marrow debris as much as possible to avoid causing the recipient Fat and foreign body embolism.

According to the above, the methods currently used in clinical practice include filtering through a 200-300um filter or needle filtration (16 and 9 needles each once). Although the above two filtration methods can meet certain filtration requirements, However, there are also the following problems: 1. After filter and needle filtration, a large number of fat cells will remain due to the limited filtration efficiency; 2. The fully open environment may easily cause contamination of bone marrow hematopoietic stem cells; 3. Excessive needle filtration pressure will cause hematopoiesis Stem cells are destroyed, and it is easy to cause hemolysis of the recipient after infusion, and even endanger life. In view of the above defects, it is necessary to design a combined bone marrow filter with multiple filtering functions.

Contents of the invention

The technical problem to be solved by the present invention is to provide a combined bone marrow filter with multiple filtering functions to solve the problems raised by the background technology.

In order to solve the above technical problems, the technical solution of the present invention is: a combined bone marrow filter with multiple filtering functions, including a beaker, a filter joint, a connecting pipe, a collection bag, a fixed cover, a filter housing, a limit ring, a first-grade copper Quality filter screen, threaded ring, secondary copper filter screen, fixed sleeve, vibrator, sterile cover, the filter joint runs through the lower end side of the inside of the beaker, the filter joint is connected with the beaker glue, and the The connecting pipe is located on the right side of the filter joint, the connecting pipe is threadedly connected with the filter joint, the collection bag is located at the bottom of the connecting pipe, the collection bag is threadedly connected with the connecting pipe, the fixed cover is located outside the beaker, and the The fixed cover is movably connected with the beaker, the filter housing runs through the inside of the fixed cover, the filter housing is integrally connected with the fixed cover, the limiting ring is located at the middle end of the filter housing, and the limiting ring is located at the middle end of the filter housing. The positioning ring is integrally connected with the filter housing, the first-level copper filter screen is located at the top of the limiting ring, the first-level copper filter screen is movably connected with the filter housing, and the threaded ring is located inside the filter housing At the bottom end, the threaded ring is threadedly connected with the filter housing, the secondary copper filter screen is located on the inner wall of the threaded ring, the secondary copper filter screen is welded to the threaded ring, and the fixed sleeve is located on the inner wall of the threaded ring. The upper side wall of the filter housing, the fixed sleeve is connected with the filter housing glue, the vibrator is located outside the fixed sleeve, the vibrator is movably connected with the fixed sleeve, and the sterile cover is located On the inner top of the filter housing, the sterile cover is threadedly connected with the filter housing.

Further, the outer wall of the beaker is also provided with a first scale, and the first scale is integrally connected with the beaker.

Further, the outer wall of the collection bag is also provided with a second scale, and the second scale is integrally connected with the collection bag.

Further, there are bolts on the left and right sides of the inner lower end of the fixed cover, and the bolts are threadedly connected with the fixed cover.

Further, a handle is provided at the upper end of the outer wall of the filter housing, and the handle is threadedly connected with the filter housing.

Further, the inner middle end of the aseptic cap is also provided with an escape hole, and the escape hole is a circular through hole.

Compared with the prior art, this combined bone marrow filter has multiple filtering functions. Before filtering, the medical staff put the fixing cover into the beaker, and then rotate the bolt. The function of cooperation, so as to realize the connection and fixation of the fixed cover and the beaker, and then the medical staff put the first-level copper filter into the filter shell, that is, through the function of the limit ring, the first-level copper filter is placed in a limited position , and then connect the sterile cover with the rotating thread at the top of the inner wall of the filter housing. At this time, through the above operations, the connection and fixation of the sterile cover and the filter housing can be realized. When filtering, the medical staff will filter the required cell fluid from the The hole part is poured into the filter shell through the funnel. When the cell fluid contacts the first-level copper filter, the cell fluid is initially filtered through the action of the first-level copper filter, and then the cell fluid flows to the second-level copper filter. At this time, through the action of the secondary copper filter, the cell fluid is filtered twice, and then the cell fluid flows into the beaker, and then flows into the collection bag through the filter joint from the connecting tube, and finally through the above operations, so as to achieve Filtration and collection of cell fluid. After the filtration is completed, the medical staff can rotate the connecting tube to separate the connecting tube from the filter joint, and then use the collection bag for subsequent treatment of the patient. At the same time, the medical staff can rotate the bolt to make the bolt Cancel the clamping of the beaker, then disassemble and separate the fixed cover from the beaker, and then clean and sterilize the beaker and the filter housing. At the same time, during the above filtering process, the medical staff can also turn on the vibrator as needed, that is, After the vibrator is turned on, the filter shell vibrates slightly, thereby improving the bone marrow filtration effect and effectively avoiding the blockage of fat and bone marrow debris. In addition, because the vibrator is connected to the fixed sleeve in a plug-in type, it can be easily disassembled and pulled out by personnel, that is, It is convenient for the subsequent disinfection of the filter housing. This combined bone marrow filter with multiple filtering functions has an ingenious structure and powerful functions. First, through the mutual cooperation of the built-in dual filtering mechanisms, it can significantly reduce fat and bone marrow debris, and greatly improve In order to improve the filtering effect, secondly, through the detachable collection mechanism, the filtered bone marrow cell liquid can be collected conveniently. Finally, according to the needs, the filtering effect can be improved through slight vibration. Finally, through the above, the bone marrow cell filtration can be greatly improved. Convenience, which is conducive to clinical promotion and application. At the same time, the vibrator is connected to the external power supply wire to realize the normal supply of energy. The first scale and the second scale are for the convenience of the medical staff to know the storage capacity, and the handle is for the convenience of the medical staff. Grasp the filter shell, the fixed sleeve is to facilitate the plug-in connection of the vibrator, and the sterile cover is to improve the sealing effect of the filter shell and effectively prevent external dust pollution from entering the inside of the filter shell.

Description of drawings

Fig. 1 is the front view of the combined bone marrow filter with multiple filtering functions;

Fig. 2 is a sectional view of the fixed cover;

3 is a perspective view of a combined bone marrow filter with multiple filtering functions;

Fig. 4 is a perspective view of the beaker.

Beaker 1, filter joint 2, connecting pipe 3, collection bag 4, fixed cover 5, filter housing 6, limit ring 7, primary copper filter 8, threaded ring 9, secondary copper filter 10, fixed Cover 11, vibrator 12, sterile cover 13, first scale 101, second scale 401, bolt 501, handle 601, escape hole 1301. The following specific embodiments will be further described in conjunction with the above-mentioned drawings.

detailed description

In the following text, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments, however, it will be apparent to those skilled in the art that the described embodiments can be used without these specific details. Some or all instances were practiced, and in other instances well-known process steps were not described in detail.

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, the combined bone marrow filter with multiple filtering functions includes a beaker 1, a filter joint 2, a connecting tube 3, a collection bag 4, a fixed cover 5, and a filter housing 6 , limit ring 7, primary copper filter screen 8, threaded ring 9, secondary copper filter screen 10, fixed sleeve 11, vibrator 12, sterile cover 13, and the filter joint 2 runs through the inside of the beaker 1 On the lower end side, the filter joint 2 is glued to the beaker 1, the connecting pipe 3 is located on the right side of the filter joint 2, the connecting pipe 3 is threaded to the filter joint 2, and the collection bag 4 is located at the connection At the bottom of the tube 3, the collection bag 4 is threadedly connected with the connecting pipe 3, the fixed cover 5 is located outside the beaker 1, the fixed cover 5 is movably connected with the beaker 1, and the filter housing 6 runs through the fixed cover 5, the filter housing 6 is integrally connected with the fixed cover 5, the limiting ring 7 is located at the middle end of the filter housing 6, the limiting ring 7 is integrally connected with the filter housing 6, and the The primary copper filter screen 8 is located at the top of the stop ring 7, the primary copper filter screen 8 is movably connected with the filter housing 6, the threaded ring 9 is located at the bottom end of the filter housing 6, and the The threaded ring 9 is threadedly connected with the filter housing 6, the secondary copper filter screen 10 is located on the inner wall of the threaded ring 9, the secondary copper filter screen 10 is welded to the threaded ring 9, and the fixed sleeve 11 is located on the inner upper side wall of the filter housing 6, the fixed sleeve 11 is connected with the filter housing 6 by glue, the vibrator 12 is located outside the inner side of the fixed sleeve 11, and the vibrator 12 is connected to the fixed sleeve 11 flexibly , the aseptic cover 13 is located at the top of the filter housing 6, the aseptic cover 13 is threadedly connected with the filter housing 6, and the outer wall of the beaker 1 is also provided with a first scale 101, the The first scale 101 is integrally connected with the beaker 1, the outer wall of the collection bag 4 is also provided with a second scale 401, the second scale 401 is integrally connected with the collection bag 4, the fixed cover Bolts 501 are also provided on the left and right sides of the lower end of the 5 interior, and the bolts 501 are threadedly connected with the fixed cover 5, and the upper end of the outer wall of the filter housing 6 is also provided with a handle 601, and the handle 601 is threaded with the filter housing 6 Connected, the inner middle end of the aseptic cover 13 is also provided with an avoidance hole 1301, and the avoidance hole 1301 is a circular through hole.

This combined bone marrow filter has multiple filtering functions. Before filtering, the medical staff put the fixed cover 5 into the beaker 1, and then rotate the bolt 501. When the bolt 501 contacts the outer wall of the beaker 1, the bolt 501, the fixed cover 5 and the beaker 1 The interaction between the fixed cover 5 and the beaker 1 can be achieved through mutual cooperation, and then the medical personnel put the first-level copper filter 8 into the filter housing 6, that is, through the function of the stop ring 7, the first-level copper The filter screen 8 is placed in a limited position, and then the aseptic cover 13 is connected with the rotating thread at the top of the inner wall of the filter housing 6. At this time, through the above operations, the aseptic cover 13 is connected and fixed with the filter housing 6. When filtering , the medical staff pours the required filtered cell fluid from the avoidance hole 1301 through the funnel into the inside of the filter housing 6, when the cell fluid contacts the first-level copper filter 8, it passes through the first-level copper filter 8. The cell fluid is initially filtered, and then the cell fluid flows to the secondary copper filter 10. At this time, the cell fluid is filtered twice through the action of the secondary copper filter 10, and then the cell fluid flows to the inside of the beaker 1, and then passes through the filter The joint 2 flows into the collection bag 4 from the connecting tube 3, and finally through the above operations, the filtration and collection of the cell fluid is achieved. After the filtration is completed, the medical staff can rotate the connecting tube 3 to separate the connecting tube 3 from the filter joint 2 , and then use the collection bag 4 to perform follow-up treatment for the patient. At the same time, the medical staff can rotate the bolt 501 to cancel the clamping of the beaker 1 by the bolt 501, and then disassemble and separate the fixing cover 5 from the beaker 1, and then separate the beaker 1 and the beaker 1. The filter housing 6 can be cleaned and sterilized. At the same time, during the above filtering process, the medical staff can also turn on the vibrator 12 according to the needs, that is, the filter housing 6 can vibrate slightly after the vibrator 12 is turned on, thereby improving bone marrow filtration. effect, effectively avoiding the blockage of fat and bone marrow debris. In addition, because the vibrator 12 is connected to the fixed sleeve 11 in a plug-in type, it can be easily disassembled and pulled out by personnel, that is, to facilitate the subsequent disinfection of the filter housing 6. At the same time, the vibration The filter 12 is connected to the external power supply wire to realize the normal supply of energy. The first scale 101 and the second scale 401 are for the convenience of the medical staff to know the storage capacity. The handle 601 is for the convenience of the medical staff to grab the filter housing 6 and fix it. The sleeve 11 is to facilitate the insertion and connection of the vibrator 12 , and the aseptic cover 13 is to improve the sealing effect of the filter housing 6 and effectively prevent external dust pollution from entering the interior of the filter housing 6 .

The present invention is not limited to the above-mentioned specific implementation manners, and various transformations made by those skilled in the art starting from the above-mentioned ideas without creative work all fall within the scope of protection of the present invention.

Claims (6)

1. A combined bone marrow filter with multiple filtering functions, which is characterized in that it includes a beaker, a filter joint, a connecting tube, a collection bag, a fixed cover, a filter housing, a limit ring, a first-stage copper filter, a threaded ring, two Grade copper filter screen, fixed sleeve, vibrator, sterile cover, the filter joint runs through the lower end of the beaker, the filter joint is connected to the beaker with glue, and the connecting pipe is located on the right side of the filter joint. The connecting pipe is threadedly connected with the filter joint, the collection bag is located at the bottom of the connecting pipe, the collection bag is threadedly connected with the connecting pipe, the fixed cover is located outside the beaker, and the fixed cover is movably connected with the beaker , the filter housing runs through the interior of the fixed cover, the filter housing is integrally connected with the fixed cover, the limiting ring is located at the middle end of the filter housing, and the limiting ring is integrally connected with the filter housing , the first-level copper filter is located at the top of the limit ring, the first-level copper filter is movably connected with the filter housing, the threaded ring is located at the bottom of the filter housing, and the threaded ring It is threadedly connected to the filter housing, the secondary copper filter screen is located on the inner wall of the threaded ring, the secondary copper filter screen is welded to the threaded ring, and the fixed sleeve is located on the upper side wall of the filter housing. The fixed sleeve is connected with the filter housing by glue, the vibrator is located outside the fixed sleeve, the vibrator is movably connected with the fixed sleeve, the sterile cover is located at the top of the filter housing, and the The sterile closure is threaded onto the filter housing. 2. The combined bone marrow filter with multiple filtering functions as claimed in claim 1, characterized in that the outer wall of the beaker is further provided with a first scale, and the first scale is integrally connected with the beaker. 3. The combined bone marrow filter with multiple filtering functions as claimed in claim 2, wherein a second scale is provided on the outer wall of the collection bag, and the second scale is integrally connected with the collection bag. 4. The combined bone marrow filter with multiple filtering functions as claimed in claim 3, wherein there are bolts on the left and right sides of the lower end inside the fixed cover, and the bolts are threadedly connected with the fixed cover. 5. The combined bone marrow filter with multiple filtering functions as claimed in claim 4, characterized in that a handle is provided on the upper end of the outer wall of the filter housing, and the handle is threadedly connected with the filter housing. 6 . The combined bone marrow filter with multiple filtering functions as claimed in claim 5 , wherein an avoidance hole is provided at the inner middle end of the sterile cover, and the avoidance hole is a circular through hole. 7 .