CN221469898U - Bone marrow extraction device - Google Patents

Abstract

The utility model discloses bone marrow extraction equipment which comprises a puncture needle head and a box body, wherein a plurality of needle head holes are formed in the surface of the puncture needle head, a needle head connecting piece is fixedly connected to the surface of the puncture needle head, a needle head fixing piece is connected to the inner wall of the needle head connecting piece in a threaded manner, a flexible hose is fixedly connected to the surface of the needle head fixing piece, a blood storage box is movably connected to the bottom of the inner wall of the box body, two second rotating shafts are fixedly connected to the inner wall of the blood storage box, a second rotating rod is movably connected between the two second rotating shafts, and a second shielding plate is fixedly connected to the surface of the second rotating rod. According to the utility model, the puncture needle head can be driven to extract multi-azimuth bone marrow through the needle head side holes by continuously pressing the air bag manually to suck air, so that the problem that the existing product is inconvenient to extract a large range of bones at one time is solved, and meanwhile, the bone marrow can enter the blood storage tank through the blood guide tube, so that the problem that the existing product is inconvenient to store the extracted excessive bone marrow is solved.

Description

Bone marrow extraction device

Technical Field

The utility model relates to the technical field of medical devices, specifically a hematology bone marrow extraction device

Background technique

Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items, including required computer software, that are used directly or indirectly on the human body. Their effectiveness is mainly obtained through physical means, not through pharmacological, immunological or metabolic means, or although these means are involved, they only play an auxiliary role. Their purpose is to diagnose, prevent, monitor, treat or alleviate diseases; diagnose, monitor, treat, alleviate or compensate for injuries, test, replace, regulate or support physiological structures or physiological processes, support or maintain life, control pregnancy, and provide information for medical or diagnostic purposes by examining samples from the human body.

In Chinese patent announcement number CN209122296U, a hematology bone marrow extraction device is disclosed, including a needle and a box body, one end of the needle is threadedly connected to a tube body, the surface of the tube body is fixedly connected to a hand stopper, the inside of the tube body is movably connected to a sealing plug, the surface of the sealing plug is fixedly connected to a spring, the surface of the sealing plug is plugged with a movable rod at one end close to the spring, the surface of the movable rod is provided with a groove, and one end of the movable rod is movably connected to a pressing sheet. The hematology bone marrow extraction device, through the provision of a hand stopper and an anti-slip pad, allows medical staff to more accurately insert the bone marrow into the patient's body during extraction, and through the provision of a spring, a fixed cap, a vent hole, a fixed rod, a rotating shaft and a stopper, it can assist medical staff in more labor-saving extraction, and the stopper can fix the position of the movable rod so that the spring will not continue to extract.

However, in actual use of the prior art, if the bone marrow extraction volume is large, it is not convenient to store the excess bone marrow extracted due to the small capacity of the needle tube; if a large area of bone marrow needs to be extracted, it is not convenient to extract the bone marrow in a large area at one time due to the fixedness and singleness of the needle hole.

Utility Model Content

The utility model aims to provide a bone marrow extraction device to solve the problems of inconvenience in storing excessive extracted bone marrow and inconvenience in extracting bone marrow in a large range at one time.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bone marrow extraction device, comprising a puncture needle and a box body, the puncture needle surface is provided with a plurality of needle holes, the puncture needle surface is fixedly connected with a needle connector, the inner wall of the needle connector is threadedly connected with a needle fixture, the surface of the needle fixture is fixedly connected with a flexible hose, the surface of the needle fixture is fixedly connected with a handle, the bottom of the inner wall of the box body is movably connected with a blood storage box, the inner wall of the blood storage box is fixedly connected with two second rotating shafts, a second rotating rod is movably connected between the two second rotating shafts, the surface of the second rotating rod is fixedly connected with a second shielding plate, the top of the box body is fixedly connected with an air bag, the top of the air bag is provided with an exhaust hole, one end of the flexible hose is fixedly connected to the surface of the air bag, the inner wall of the air bag is fixedly connected with a funnel, and the bottom of the funnel is fixedly connected with a blood guide tube.

Preferably, a telescopic rod is fixedly connected to the top of the inner wall of the blood storage box, a plug is fixedly connected to the bottom of the telescopic rod, and a sealing gasket is fixedly connected to the bottom of the plug.

Preferably, two fixing plates are fixedly connected to the bottom of the inner wall of the box, and the surface of the fixing plates is movably connected to the surface of the blood storage box.

Preferably, the surface of the blood storage box is movably connected to one end of the blood guide tube.

Preferably, the inner wall of the blood storage box is provided with scale lines.

Preferably, two first rotating shafts are fixedly connected to the inner wall of the airbag, a first rotating rod is movably connected between the two first rotating shafts, and a first shielding plate is fixedly connected to the surface of the first rotating rod.

Preferably, a door is movably connected to the surface of the box.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model drives the needle fixing part by the handle, the needle fixing part drives the needle connecting part, the needle connecting part drives the puncture needle, and the puncture needle is inserted into the patient's bone marrow. The airbag can be manually pressed to utilize the pressure difference between the inside and outside of the airbag to transport the bone marrow through the puncture needle, through the needle connecting part and the needle fixing part, into the flexible hose, and then transported to the inside of the airbag through the flexible hose. Because there are multiple needle holes on the surface of the puncture needle, the bone marrow in a large range of multiple directions can be extracted through one puncture operation, thereby solving the problem that it is inconvenient to extract bone marrow in a large range at one time.

2. The utility model also allows the extracted bone marrow to enter the airbag through a flexible hose, flow into the blood guide blood vessel through the funnel inside the airbag, and enter the blood storage box through the blood guide blood vessel. When the bone marrow is about to enter the blood storage box, it first contacts the second shielding plate in the blood storage box. When the airbag is pressed, a part of the air enters the blood guide blood vessel through the funnel, forming a gas thrust to push the second shielding plate, so that the second shielding plate drives the second rotating rod to rotate between the two second rotating shafts toward the inside of the blood storage box, so that the bone marrow enters the blood storage box for storage, thereby solving the problem of inconvenience in storing excessive bone marrow extracted.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a bone marrow extraction device according to the present invention;

FIG2 is a cross-sectional view of a box structure of a bone marrow extraction device of the present invention;

FIG3 is a cross-sectional view of the airbag structure of a bone marrow extraction device of the present invention;

FIG4 is a cross-sectional view of a blood storage box structure of a bone marrow extraction device of the present invention;

FIG5 is an enlarged view of the structure of point A in FIG2 of a bone marrow extraction device of the present invention;

FIG6 is an enlarged view of the structure of point B in FIG3 of a bone marrow extraction device of the present invention.

In the figure: 1. puncture needle; 2. needle fixing part; 3. needle connecting part; 4. grip; 5. flexible hose; 6. air bag; 7. exhaust hole; 8. box body; 9. box door; 10. needle hole; 11. blood guide tube; 12. blood storage box; 13. telescopic rod; 14. plug; 15. sealing gasket; 16. fixing plate; 17. scale line; 18. first rotating shaft; 19. first rotating rod; 20. first shielding plate; 21. second rotating shaft; 22. second shielding plate; 23. second rotating rod; 24. funnel.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-6. The utility model provides a technical solution: a bone marrow extraction device, including a puncture needle 1 and a box 8. The surface of the puncture needle 1 is provided with a plurality of needle holes 10. The surface of the puncture needle 1 is fixedly connected with a needle connector 3. The inner wall of the needle connector 3 is threadedly connected with a needle fixture 2. The surface of the needle fixture 2 is fixedly connected with a flexible hose 5. The surface of the needle fixture 2 is fixedly connected with a handle 4. The medical staff drives the needle fixture 2 by holding the handle 4, and the needle fixture 2 drives the needle connector 3, thereby driving the puncture needle 1. The puncture needle 1 is inserted into the patient's bone marrow, and then the flexible hose 5 is driven to inhale by manually pressing the air bag 6. The patient's bone marrow is extracted by the flexible hose 5. The bottom of the inner wall of the box 8 is movably connected with a blood storage box 12. The inner wall of the blood storage box 12 is fixedly connected with two second rotating shafts 2 1, a second rotating rod 23 is movably connected between the two second rotating shafts 21, and a second shielding plate 22 is fixedly connected to the surface of the second rotating rod 23. The second shielding plate 22 can be pushed by the pressure of the bone marrow liquid, thereby driving the second rotating rod 23 to rotate inward between the second rotating shafts 21. When the bone marrow enters the blood storage box 12, the second shielding plate 22 naturally sags between the two second rotating shafts 21 through the second rotating rod 23 under the action of its own gravity and fits with the inner wall of the blood storage box 12, effectively preventing the backflow of bone marrow. An exhaust hole 7 is opened on the surface of the airbag 6, one end of the flexible hose 5 is fixedly connected to the surface of the airbag 6, and the airbag 6 can be extracted through the flexible hose 5 by pressing. A funnel 24 is fixedly connected to the inner wall of the airbag 6, and the bottom of the funnel 24 is fixedly connected to the inner wall of the blood guide blood vessel 11. The extracted bone marrow enters the airbag 6 and can be transmitted through the funnel 24 and the blood guide blood vessel 11.

As shown in Figure 4, a telescopic rod 13 is fixedly connected to the top of the inner wall of the blood storage box 12, a plug 14 is fixedly connected to the bottom of the telescopic rod 13, and a sealing gasket 15 is fixedly connected to the bottom of the plug 14. The extracted bone marrow can enter the blood storage box 12 through the blood guide tube 11. When a certain milliliter of bone marrow is extracted from the patient, the bone marrow in the blood storage box 12 will lift up the sealing gasket 15, and the sealing gasket 15 drives the plug 14, and the plug 14 rises along the direction of the telescopic rod 13.

As shown in FIG. 2 , the bottom of the inner wall of the box body 8 is fixedly connected to the bottom of the fixing plate 16 , and the fixing plates 16 are movably connected on both sides of the blood storage box 12 . The fixing plates 16 on both sides can fix the blood storage box 12 to prevent the blood storage box 12 from shaking inside the box body 8 . The blood storage box 12 is fixed by utilizing the gap between the two fixing plates 16 at the bottom of the inner wall of the box body 8 .

As shown in FIG. 5 , the surface of the blood storage box 12 is movably connected to one end of the blood guide tube 11 , and the extracted bone marrow flows into the blood storage box 12 through the blood guide tube 11 .

As shown in FIG2 , the inner wall of the blood storage box 12 is provided with scale lines 17. The sealing gasket 15 will align with the scale lines 17 on the inner wall of the blood storage box 12 one by one during the rising process. Because the blood storage box 12 is transparent, the scale lines 17 can be observed by naked eyes to measure the extracted patient's bone marrow.

As shown in Figure 6, two first rotating shafts 18 are fixedly connected to the inner wall of the airbag 6, a first rotating rod 19 is movably connected between the two first rotating shafts 18, and a first baffle plate 20 is fixedly connected to the surface of the first rotating rod 19. During inhalation, the first baffle plate 20 can be driven by gas pressure, thereby driving the first rotating rod 19 to rotate inward between the first rotating shafts 18, so that gas enters the airbag 6. When the airbag 6 is pressed to exhaust, the first baffle plate 20 is tightly attached to the inner wall of the airbag 6 and at the same time shields the flexible hose 5, effectively preventing the gas from entering the patient's body through the flexible hose 5 and the puncture needle 1 during the exhaust process.

As shown in FIG1 , a box door 9 is movably connected to the surface of the box body 8. In order to visually observe the bone marrow extraction status of the blood storage box 12 during use, the box door 9 can be opened during use.

Working principle: When in use, the utility model can be held by medical staff with the handle 4, and the handle 4 drives the needle fixing part 2, and the needle fixing part 2 drives the needle connecting part 3, thereby driving the puncture needle 1, and inserting the puncture needle 1 into the patient's bone marrow, and manually pressing the airbag 6. When the airbag 6 begins to be pressed, the first baffle plate 20 is affected by the gas pressure to block the flexible hose 5, which can prevent the gas from entering the patient's body through the flexible hose 5 and the puncture needle 1, and finally discharge the airbag 6 through the exhaust hole 7. When the airbag 6 stops being pressed, the airbag 6 returns to its original state under its own tension. At this time, the gas content inside the airbag 6 is low and the air pressure is small, causing a large pressure difference inside and outside the airbag 6. Therefore, the airbag 6 can drive the flexible hose 5 to start inhaling, and the flexible hose The force generated by the inhalation pushes the first baffle plate 20, and the first baffle plate 20 drives the first rotating rod 19 to rotate between the two first rotating shafts 18 toward the inside of the airbag 6, thereby opening the air inlet channel of the airbag 6, and utilizing the pressure difference between the inside and outside of the airbag 6 to transport the bone marrow through the puncture needle 1 through the needle connector 3 and the needle fixture 2 to the flexible hose 5. When actually used, one end of the flexible hose 5 is fixed to the inner wall of the needle fixture 2 and connected to the needle connector 3, so that the bone marrow is conveniently transported through the puncture needle 1 through the needle connector 3 to the flexible hose 5, and then transported to the inside of the airbag 6 through the flexible hose 5. Because there are multiple needle holes 10 on the surface of the puncture needle 1, the bone marrow can be extracted from a large range of multiple directions through one puncture operation, thereby improving the efficiency. At the same time, the patient's pain is alleviated. The extracted bone marrow enters the airbag 6 through the flexible hose 5, flows into the blood conduit 11 through the funnel 24 inside the airbag 6, and enters the blood storage box 12 through the blood conduit 11. When the bone marrow is about to enter the blood storage box 12, it first contacts the second shielding plate 22 in the blood storage box 12. When the airbag 6 is pressed, a part of the air enters the blood conduit 11 through the funnel 24, forming a gas thrust to push the second shielding plate 22, so that the second shielding plate 22 drives the second rotating rod 23 to rotate between the two second rotating shafts 21 toward the inside of the blood storage box 12, so that the bone marrow enters the blood storage box 12 for storage. When the bone marrow is extracted, the second shielding plate 22 is naturally moved between the two second rotating shafts 21 by the second rotating rod 23 under the action of its own gravity. The sealing pad 15 is drooped and fits with the inner wall of the blood storage box 12, which effectively prevents the backflow of bone marrow, thereby facilitating storage. When the bone marrow extraction reaches the bottom of the sealing pad 15, as more and more bone marrow is extracted, the sealing pad 15 will be pushed to move upward, and the sealing pad 15 will drive the plug 14, and the plug 14 will rise along the direction of the telescopic rod 13. During the rising process, the sealing pad 15 will align with the scale lines 17 on the inner wall of the blood storage box 12 one by one. The scale lines 17 can be used to control the bone marrow demand according to the conditions of different patients to avoid exceeding the required control amount of bone marrow and affecting the health of the patients. When the blood storage box 12 needs to be replaced, the blood guide blood vessel 11 is removed from the surface of the blood storage box 12, and then the blood storage box 12 is pulled out from the inside of the box body 8, and the box door 9 is closed to prevent dust from entering the inside of the box body 8.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A bone marrow extraction device, comprising a puncture needle (1) and a housing (8), wherein the surface of the puncture needle (1) is provided with a plurality of needle holes (10), the surface of the puncture needle (1) is fixedly connected with a needle connector (3), the inner wall of the needle connector (3) is threadedly connected with a needle fixture (2), the surface of the needle fixture (2) is fixedly connected with a flexible hose (5), the surface of the needle fixture (2) is fixedly connected with a handle (4), the bottom of the inner wall of the housing (8) is movably connected with a blood storage box (12), and the blood storage box (12) is connected to the blood storage box (12) ) is fixedly connected to the inner wall of the box (8), a second rotating rod (23) is movably connected between the two second rotating shafts (21), a second shielding plate (22) is fixedly connected to the surface of the second rotating rod (23), an air bag (6) is fixedly connected to the top of the box (8), an exhaust hole (7) is provided on the top of the air bag (6), one end of the flexible hose (5) is fixedly connected to the surface of the air bag (6), a funnel (24) is fixedly connected to the inner wall of the air bag (6), and the bottom of the funnel (24) is fixedly connected to the guide blood vessel (11). 2. A bone marrow extraction device according to claim 1, characterized in that: a telescopic rod (13) is fixedly connected to the top of the inner wall of the blood storage box (12), a plug (14) is fixedly connected to the bottom of the telescopic rod (13), and a sealing gasket (15) is fixedly connected to the bottom of the plug (14). 3. A bone marrow extraction device according to claim 1, characterized in that: two fixing plates (16) are fixedly connected to the bottom of the inner wall of the box body (8), and the surface of the fixing plates (16) is movably connected to the surface of the blood storage box (12). 4. A bone marrow extraction device according to claim 1, characterized in that the surface of the blood storage box (12) is movably connected to one end of the blood guide tube (11). 5. A bone marrow extraction device according to claim 1, characterized in that the inner wall of the blood storage box (12) is provided with scale lines (17). 6. A bone marrow extraction device according to claim 1, characterized in that: two first rotating shafts (18) are fixedly connected to the inner wall of the airbag (6), a first rotating rod (19) is movably connected between the two first rotating shafts (18), and a first shielding plate (20) is fixedly connected to the surface of the first rotating rod (19). 7. A bone marrow extraction device according to claim 1, characterized in that a door (9) is movably connected to the surface of the box body (8).