Bone marrow specimen collection tube
By designing a bone marrow specimen collection tube, the extraction and storage processes were integrated, reducing the risks of coagulation and contamination, and improving work efficiency and specimen qualification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING TIANTAN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
- Filing Date
- 2025-03-03
- Publication Date
- 2026-07-21
AI Technical Summary
Existing bone marrow aspiration sampling tubes cannot achieve the integration of extraction and preservation, increasing the risk of bone marrow specimen spillage and environmental contamination. Furthermore, the risk of coagulation during transfer is high, resulting in low work efficiency.
A bone marrow specimen collection tube was designed, comprising a collection tube body, first and second connecting tubes, a sealing cap, and a stirring rod. The bone marrow specimen is directly drawn into the collection tube through the connecting tube, and an anticoagulant is pre-stored in the collection tube. After mixing, the tube is stirred to ensure thorough mixing and avoid the transfer process.
It shortens the specimen transfer time, reduces the risk of solidification, avoids spillage and contamination, and improves work efficiency and specimen qualification rate.
Smart Images

Figure CN224523134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a bone marrow specimen collection tube. Background Technology
[0002] The existing bone marrow aspiration sampling tubes require the bone marrow specimen to be transferred to test tubes after extraction, which cannot integrate extraction and storage, increasing the possibility of bone marrow specimen spillage and environmental contamination.
[0003] Therefore, this utility model is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a bone marrow specimen collection tube to solve the technical problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a bone marrow specimen collection tube, comprising: a collection tube body, a first connecting tube, a second connecting tube, and a sealing cap;
[0006] The sealing cap is fastened to the open end of the inlet tube body;
[0007] One end of the first connecting tube passes through the sealing cap and enters the body of the indwelling tube, and the other end of the first connecting tube is the first connecting nozzle;
[0008] One end of the second connecting tube passes through the sealing cap and enters the body of the indwelling tube, and the other end of the second connecting tube is the second connecting nozzle.
[0009] In an optional embodiment, a stirring rod is rotatably connected to the middle of the sealing cap. The stirring end of the stirring rod is located inside the body of the collection tube, and the non-stirring end of the stirring rod is located outside the body of the collection tube. A knob is connected to the non-stirring end.
[0010] In an optional embodiment, the sealing cap is threadedly connected to the open end of the indwelling tube body.
[0011] In an optional embodiment, a first clamp is provided on the first connecting pipe;
[0012] The first clamp is disposed on the pipe section of the first connecting pipe located between the first connecting nozzle and the sealing cap.
[0013] In an optional embodiment, a second clamp is provided on the second connecting pipe;
[0014] The second clamp is disposed on the section of the second connecting pipe located between the second connecting nozzle and the sealing cap.
[0015] In an optional embodiment, the connection between the first connecting pipe and the sealing cap is sealed; the connection between the second connecting pipe and the sealing cap is sealed.
[0016] In an optional embodiment, the first connector can be inserted into the second connector.
[0017] In an optional embodiment, an anticoagulant is pre-stored in the body of the collection tube.
[0018] The beneficial effects of this utility model are as follows:
[0019] (1) After bone marrow aspiration, the first connecting nozzle is directly connected to the bone marrow aspiration needle, and the second connecting nozzle is connected to the syringe. The bone marrow specimen is directly placed in the body of the collection tube by the suction of the syringe, eliminating the transfer link of the specimen from the sampling tube to the collection tube, shortening the time from extraction to transfer to the bone marrow collection tube, thereby reducing the risk of bone marrow coagulation. At the same time, it avoids the possibility of bone marrow spillage and pollution of the surrounding environment during the specimen transfer process, reduces the work links of medical staff, and improves work efficiency.
[0020] (2) An anticoagulant can be added to the collection tube so that the bone marrow is mixed with the anticoagulant immediately after collection, further reducing the risk of bone marrow coagulation and improving the success rate of collecting qualified bone marrow specimens. After specimen collection, medical staff can use a stirring rod to mix the bone marrow fluid and anticoagulant evenly, avoiding the phenomenon of bone marrow coagulation due to insufficient mixing of bone marrow specimen and anticoagulant, and further ensuring the qualification rate of collected specimens. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of a bone marrow specimen collection tube provided in an embodiment of the present invention.
[0023] Figure 2 This is a schematic diagram of the connection between two connecting tubes in a bone marrow specimen collection tube provided in one embodiment of the present invention.
[0024] The reference numerals in the attached drawings are as follows: 1-first connecting pipe; 2-second connecting pipe; 3-first clamp; 4-first clamp; 5-knob; 6-stirring rod; 7-sealing cap; 8-anticoagulant; 9-collection tube body; 10-first connecting nozzle; 11-second connecting nozzle. Detailed Implementation
[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "Multiple" means two or more, and "several" means any number including one, unless otherwise explicitly specified.
[0027] Please see the appendix Figure 1-2 The purpose of this embodiment is to provide a bone marrow specimen collection tube, including: a collection tube body 9, a first connecting tube 1, a second connecting tube 2, and a sealing cap 7; the sealing cap 7 is fastened to the open end of the collection tube body 9; one end of the first connecting tube 1 passes through the sealing cap 7 and enters the collection tube body 9, and the other end of the first connecting tube 1 is a first connecting nozzle 10; one end of the second connecting tube 2 passes through the sealing cap 7 and enters the collection tube body 9, and the other end of the second connecting tube 2 is a second connecting nozzle 11. After bone marrow puncture, the first connecting nozzle 10 is directly connected to the bone marrow puncture needle, and the second connecting nozzle 11 is connected to a syringe. The bone marrow specimen is directly placed in the collection tube body 9 by the suction of the syringe, eliminating the transfer step of the specimen from the sampling tube to the collection tube, shortening the time from extraction to transfer to the bone marrow collection tube, thereby reducing the risk of bone marrow coagulation, and avoiding the possibility of bone marrow spillage and environmental contamination during specimen transfer, reducing the workload of medical staff and improving work efficiency.
[0028] Specifically, the collection tube body 9 is pre-filled with anticoagulant 8. In a preferred embodiment, those skilled in the art can select different anticoagulants according to different testing purposes. A stirring rod 6 is rotatably connected to the center of the sealing cap 7. The stirring end of the stirring rod 6 is located inside the collection tube body 9, while the non-stirring end is located outside the collection tube body 9 and is connected to a knob 5. Anticoagulant 8 can be added to the collection tube body 9 so that the bone marrow is mixed with the anticoagulant 8 the moment it is collected, further reducing the risk of bone marrow coagulation and improving the success rate of collecting qualified bone marrow specimens. After specimen collection, medical staff can use the stirring rod 6 to stir and mix the bone marrow fluid and anticoagulant, avoiding the phenomenon of bone marrow coagulation due to insufficient mixing of the bone marrow specimen and anticoagulant, further ensuring the qualification rate of the collected specimens.
[0029] Furthermore, the sealing cap 7 is threadedly connected to the open end of the inlet tube body 9, facilitating the removal of the sealing cap 7. The connection between the first connecting tube 1 and the sealing cap 7 is sealed; the connection between the second connecting tube 2 and the sealing cap 7 is also sealed.
[0030] Furthermore, a first clamp 3 is provided on the first connecting pipe 1; the first clamp 3 is located on the pipe section of the first connecting pipe 1 between the first connecting nozzle 10 and the sealing cap 7. A second clamp 4 is provided on the second connecting pipe 2; the second clamp 4 is located on the pipe section of the second connecting pipe 2 between the second connecting nozzle 11 and the sealing cap 7. The first connecting nozzle 10 can be inserted into the second connecting nozzle 11.
[0031] After successful bone marrow aspiration, the first connecting nozzle 10 is connected to the bone marrow aspiration needle, and the second connecting nozzle 11 is connected to the syringe. The first clamp 3 and the second clamp 4 are placed in the open position, and the syringe is used to aspirate the bone marrow fluid through the first connecting nozzle 10 and the first connecting tube 1 into the collection tube body 9. Once the required amount of bone marrow has been aspirated, the connections between the first connecting nozzle 10, the second connecting nozzle 11, the bone marrow aspiration needle, and the syringe are disconnected. The knob 5 is rotated to drive the stirring rod 6 to mix the bone marrow with the anticoagulant 8. Then, the first clamp 3 and the second clamp 4 are placed in the closed position, clamping the first connecting tube 1 and the second connecting tube 2 to prevent the bone marrow fluid from flowing back into the first connecting tube 1 and the second connecting tube 2 during transport. Finally, the connecting nozzle 10 can be inserted into the connecting nozzle 11, as shown in the attached diagram. Figure 2 As shown, the main body 9 of the collection tube is convenient for transfer.
[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bone marrow specimen collection tube, characterized in that, include: The main body of the inlet tube (9), the first connecting tube (1), the second connecting tube (2) and the sealing cap (7); The sealing cap (7) is fastened to the open end of the inlet tube body (9); One end of the first connecting tube (1) passes through the sealing cap (7) and enters the body of the indwelling tube (9), and the other end of the first connecting tube (1) is the first connecting nozzle (10); One end of the second connecting tube (2) passes through the sealing cap (7) and enters the indwelling tube body (9), and the other end of the second connecting tube (2) is the second connecting nozzle (11).
2. The bone marrow specimen collection tube as described in claim 1, characterized in that, A stirring rod (6) is rotatably connected to the middle of the sealing cap (7). The stirring end of the stirring rod (6) is located in the body of the collection tube (9), and the non-stirring end of the stirring rod (6) is located outside the body of the collection tube (9). A knob (5) is connected to the non-stirring end.
3. The bone marrow specimen collection tube as described in claim 1, characterized in that, The sealing cap (7) is threadedly connected to the open end of the inlet tube body (9).
4. The bone marrow specimen collection tube as described in claim 1, characterized in that, A first clamp (3) is provided on the first connecting pipe (1); The first clamp (3) is disposed on the pipe section of the first connecting pipe (1) located between the first connecting nozzle (10) and the sealing cap (7).
5. The bone marrow specimen collection tube as described in claim 1, characterized in that, A second clamp (4) is provided on the second connecting pipe (2); The second clamp (4) is disposed on the pipe section of the second connecting pipe (2) located between the second connecting nozzle (11) and the sealing cap (7).
6. The bone marrow specimen collection tube as described in claim 1, characterized in that, The connection between the first connecting pipe (1) and the sealing cap (7) is sealed; the connection between the second connecting pipe (2) and the sealing cap (7) is sealed.
7. The bone marrow specimen collection tube as described in claim 1, characterized in that, The first connector (10) can be inserted into the second connector (11).
8. The bone marrow specimen collection tube as described in claim 1, characterized in that, The indwelling tube body (9) contains an anticoagulant (8).