Bone marrow hematopoietic stem cell collection bag
By designing the bone marrow hematopoietic stem cell collection bag, the built-in filtration component and closing cap are used to reduce the number of punctures, and the accurate measurement of the collection amount is achieved through the counting ruler, which solves the problems of inaccurate counting and extracellular leakage during the collection process, and improves the collection efficiency and accuracy.
Patent Information
- Application Number
- CN202420528213.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the collection of bone marrow hematopoietic stem cells, the existing technology lacks effective counting assistance tools, which leads to interference in counting accuracy. The 9-number needle often has filtration blockage, and requires multiple re-punctures, which can easily damage the blood rays and cause extracellular leakage and waste.
A bone marrow hematopoietic stem cell collection bag is designed, including blood transfusions, blood glaze, closure cap and metrology components. Through the built-in filtering component and closure cap of the blood ray, the number of blood ray punctures is reduced, and the accurate measurement of bone marrow cell collection is achieved through the counting feet.
Reduces the repeated puncture of blood rays, avoids the waste of external leakage of hematopoietic stem cells, improves the measurement accuracy of the collection volume, and reduces external interference.
Smart Images
Figure CN222752082U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clinical bone marrow hematopoietic stem cell transplantation equipment, in particular to a bone marrow hematopoietic stem cell collection bag. Background Art
[0002] Allogeneic hematopoietic stem cell transplantation is an important method for the treatment of malignant hematological diseases. Hematopoietic stem cells can be collected from the donor's bone marrow (BM) and peripheral blood hematopoietic stem cells (PBSC). At present, the main method of collecting and filtering bone marrow hematopoietic stem cells in clinical practice is to use a 20ml disposable syringe to extract the donor's bone marrow to 10ml, first filter it into another 20ml syringe with a 12-gauge needle (the first filtration), and then connect it to the 9-gauge needle that pierces the blood braid and inject it into the blood bag to complete the second filtration. The total amount of donor bone marrow hematopoietic stem cells collected is usually about 800ml, and a total of 160 20ml syringes are required to be used for filtration 160 times. There is a lack of effective and convenient counting auxiliary tools on the sterile operating table, and the counting accuracy is easily disturbed. The 9-gauge needle that pierces the blood braid often has filter blockage and needs to be replaced, and then the blood braid needs to be re-punctured many times, which can easily damage the blood braid and cause leakage and waste of hematopoietic stem cells, affecting patient treatment. Utility Model Content
[0003] The purpose of the utility model is to provide a bone marrow hematopoietic stem cell collection bag to solve the technical problems existing in the above-mentioned background technology.
[0004] To achieve the above purpose, the technical solution of the utility model is as follows:
[0005] A bone marrow hematopoietic stem cell collection bag comprises: a collection bag, wherein a blood transfusion tube and a blood braid are respectively arranged on the left and right sides of the top of the collection bag, a closing cap is connected to the outlet end of the blood braid, a hanging piece is arranged at the bottom end of the collection bag, and a metering component for measuring the amount of bone marrow hematopoietic stem cells collected is fixedly connected to the front end of the outer wall of the collection bag.
[0006] Furthermore, the collection bag is made of plastic material of medical specifications.
[0007] Furthermore, a sealing plug is installed at the output port of the blood transfusion tube.
[0008] Furthermore, the closure cap is composed of a Luer connector and a synthetic rubber membrane, one end of the Luer connector is connected to the blood braid, and the synthetic rubber membrane is embedded in the channel of the Luer connector.
[0009] Furthermore, the hanging member is a lanyard, the lanyard is fixedly connected to the bottom end of the collection bag, and a hanging hole is provided on the lanyard.
[0010] Furthermore, the measuring component includes: a counting ruler, which is fixedly connected to the front end of the outer wall of the collection bag, and the upper and lower sides of the front end of the counting ruler are respectively provided with an upper row of scales and a lower row of scales, and two groups of pointer assemblies are provided on the counting ruler, and the two groups of pointer assemblies are respectively arranged corresponding to the upper row of scales and the lower row of scales for combined counting of the amount of bone marrow hematopoietic stem cells collected.
[0011] Furthermore, the scale range of the upper row of scales is 0-1000ml, wherein the interval between two adjacent scales is 100ml; the scale range of the lower row of scales is 0-100ml, wherein the interval between two adjacent scales is 10ml.
[0012] The cam is an L-shaped piece of furniture, and the L-shaped piece is connected to the L-shaped furniture by a spring.
[0013] Furthermore, the pointer assembly also includes: a limiting slide rail and an L-shaped top plate, the limiting slide rail is laterally fixedly connected to the bottom end of the L-shaped slide groove, the inner end of the L-shaped slider is provided with a strip groove, the strip groove cooperates with the limiting slide rail, and the outer end of the L-shaped slider is fixedly connected to the L-shaped top plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. By setting a closing cap on the blood braid, when collecting and filtering bone marrow hematopoietic stem cells, use a 20ml disposable syringe to extract the donor bone marrow to 10ml, first filter it with a No. 12 needle into another 20ml syringe for the first filtration, then connect the closing cap and inject it into the collection bag, and complete the second filtration through the built-in filter component of the blood braid, which can reduce repeated puncture of the blood braid and avoid leakage and waste of bone marrow hematopoietic stem cells.
[0016] 2. The counting component can accurately measure the amount of bone marrow hematopoietic stem cells collected to avoid external interference. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is the front view of the utility model;
[0018] Figure 2 It is a structural view of the counting component in the utility model;
[0019] Figure 3 It is a longitudinal sectional view of the utility model at the slide bar;
[0020] Figure 4 It is a transverse longitudinal sectional view of the utility model at the slide rod.
[0021] The numbers in the accompanying drawings are: 1-collection bag, 2-blood transfusion tube, 3-sealing plug, 4-hanging strap, 401-hanging hole, 5-blood braid, 6-closing cap, 7-counting ruler, 701-L-shaped slide groove, 702-arc-shaped groove, 8-upper row of scales, 9-lower row of scales, 10-L-shaped slider, 1001-slide hole, 11-scale pointer, 12-limiting block, 13-sliding plate, 14-slide rod, 15-spring, 16-limiting slide rail, 17-L-shaped top plate, 18-filter net. DETAILED DESCRIPTION
[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] See also Figures 1 to 4 As shown, a bone marrow hematopoietic stem cell collection bag comprises: a collection bag 1, a blood transfusion tube 2 and a blood braid 5 are respectively arranged on the left and right sides of the top of the collection bag 1, a closing cap 6 is connected to the outlet end of the blood braid 5, a hanging piece is arranged at the bottom end of the collection bag 1, and a metering component for measuring the amount of bone marrow hematopoietic stem cells collected is fixedly connected to the front end of the outer wall of the collection bag 1.
[0024] In this embodiment, the collection bag 1 is made of a plastic material of medical specifications and is a transparent material.
[0025] In this embodiment, a sealing plug 3 is installed at the output port of the blood transfusion tube 2 .
[0026] In this embodiment, the closing cap 6 is composed of a Luer connector and a synthetic rubber membrane. One end of the Luer connector is connected to the blood braid 5. The synthetic rubber membrane is embedded in the channel of the Luer connector. The blood braid 5 has a built-in filtering component to filter the hematopoietic stem cells.
[0027] In this embodiment, the hanging member is a hanging belt 4, which is fixedly connected to the bottom end of the collecting bag 1, and a hanging hole 401 is provided on the hanging belt 4.
[0028] In this embodiment, the metering assembly includes: a counting ruler 7, which is fixedly connected to the front end of the outer wall of the collection bag 1, and an upper row of scales 8 and a lower row of scales 9 are respectively arranged on the upper and lower sides of the front end of the counting ruler 7. Two groups of pointer assemblies are arranged on the counting ruler 7, and the two groups of pointer assemblies are respectively arranged corresponding to the upper row of scales 8 and the lower row of scales 9 for combined counting of the amount of bone marrow hematopoietic stem cells collected; the scale range of the upper row of scales 8 is 0-1000ml, wherein the interval between two adjacent scales is 100ml; the scale range of the lower row of scales 9 is 0-100ml, Among them, the interval between two adjacent scales is 10ml; the pointer assembly includes: an L-shaped slider 10, a scale pointer 11, a limit block 12, a toggle plate 13, a slide rod 14 and a spring 15. Two L-shaped slide grooves 701 are arranged in parallel on the upper and lower sides of the front end of the counting ruler 7. The upper end of the L-shaped slide groove 701 is provided with a plurality of arc grooves 702. The upper plurality of arc grooves 702 correspond to the plurality of scales on the upper row of scales 8, respectively, and the lower plurality of arc grooves 702 correspond to the plurality of scales on the lower row of scales 9, respectively. The L-shaped slider 10 is arranged horizontally. The L-shaped slider 10 is slidably connected in the L-shaped slide groove 701, and a scale pointer 11 is fixedly connected to the front end of the L-shaped slider 10. A limit block 12 is movably connected in the arc groove 702. A toggle plate 13 is fixedly connected to the limit block 12 on the side facing the L-shaped slider 10. A sliding hole 1001 is opened on the side of the L-shaped slider 10 facing the limit block 12. A sliding rod 14 is slidably connected in the sliding hole 1001. The sliding rod 14 is fixedly connected to the toggle plate 13 on the side facing the toggle plate 13. A spring 1 is sleeved on the sliding rod 14, and its two ends are respectively pressed and contacted with the toggle plate 13 and the L-shaped slider 10. 5. When the bone marrow hematopoietic stem cells are filtered for the second time, the scale pointer 11 corresponding to the lower scale 9 is slid once for each filtration, indicating that 10 ml of bone marrow hematopoietic stem cells have been collected and filtered. When the scale pointer 11 on the lower scale 9 reaches the scale corresponding to 100 ml, the scale pointer 11 corresponding to the upper scale 8 can be slid once, and the scale pointer 11 on the lower scale is reset to zero, and so on. In this way, the amount of hematopoietic stem cells that have been collected and the amount that needs to be collected can be fed back to the bone marrow collection doctor in real time, helping the medical staff on the operating table to count accurately in real time.
[0029] In this embodiment, the pointer assembly also includes: a limiting slide rail 16 and an L-shaped top plate 17. The limiting slide rail 16 is laterally fixedly connected to the bottom end of the L-shaped slide groove 701. A strip groove is opened at the inner end of the L-shaped slider 10, and the strip groove cooperates with the limiting slide rail 16. The outer end of the L-shaped slider 10 is fixedly connected to the L-shaped top plate 17.
[0030] Instructions for use: When collecting and filtering bone marrow hematopoietic stem cells, use a 20ml disposable syringe to extract 10ml of donor bone marrow, first use a No. 12 needle to filter into another 20ml syringe for the first filtration, then connect the sealing cap 6 and inject it into the collection bag 1, and complete the second filtration through the built-in filtering component of the blood braid 5, which can reduce the repeated puncture of the blood braid 5 and avoid the leakage and waste of bone marrow hematopoietic stem cells; when the bone marrow hematopoietic stem cells are filtered for the second time, each time the filtration is performed, the scale pointer 11 corresponding to the lower row of scales 9 is slid once, indicating that 10ml of bone marrow hematopoietic stem cells have been collected and filtered, and the scale pointer 11 on the lower row of scales 9 can slide the scale pointer 11 corresponding to the upper row of scales 8 once when it reaches the corresponding scale of 100ml, and the scale pointer 11 on the lower row of scales 9 is reset to zero, and so on, so that the amount of hematopoietic stem cells collected and the amount to be collected can be fed back to the bone marrow collection doctor in real time, helping the medical staff on the operating table to count accurately in real time.
[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0032] The above description is only a preferred embodiment of the utility model and does not constitute any form of limitation to the utility model. Any technician familiar with the profession, without departing from the scope of the technical solution of the utility model and based on the technical essence of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment shall still fall within the scope of protection of the technical solution of the utility model.
Claims
1. A bone marrow hematopoietic stem cell collection bag, characterized in that: include: A collection bag (1), wherein a blood transfusion tube (2) and a blood braid (5) are respectively arranged on the left and right sides of the top of the collection bag (1), the outlet end of the blood braid (5) is connected to a sealing cap (6), the bottom end of the collection bag (1) is provided with a hanging member, and the front end of the outer wall of the collection bag (1) is fixedly connected to a metering component for measuring the amount of bone marrow hematopoietic stem cells collected; the metering component comprises: a counting ruler (7), the counting ruler (7) is fixedly connected to the front end of the outer wall of the collection bag (1), the upper and lower sides of the front end of the counting ruler (7) are respectively provided with an upper row of scales (8) and a lower row of scales (9), and the counting ruler (7) is provided with two groups of pointer components, the two groups of pointer components are respectively arranged corresponding to the upper row of scales (8) and the lower row of scales (9) for combined counting of the amount of bone marrow hematopoietic stem cells collected.
2. A bone marrow hematopoietic stem cell collection bag according to claim 1, characterized in that: The collection bag (1) is made of a plastic material of medical specifications.
3. A bone marrow hematopoietic stem cell collection bag according to claim 1, characterized in that: A sealing plug (3) is installed at the output port of the blood transfusion tube (2).
4. A bone marrow hematopoietic stem cell collection bag according to claim 1, characterized in that: The closure cap (6) is composed of a Luer connector and a synthetic rubber membrane, one end of the Luer connector is connected to the blood braid (5), and the synthetic rubber membrane is embedded in the channel of the Luer connector.
5. A bone marrow hematopoietic stem cell collection bag according to claim 1, characterized in that: The hanging member is a hanging belt (4), the hanging belt (4) is fixedly connected to the bottom end of the collection bag (1), and a hanging hole (401) is provided on the hanging belt (4).
6. A bone marrow hematopoietic stem cell collection bag according to claim 1, characterized in that: The scale range of the upper row of scales (8) is 0-1000 ml, wherein the interval between two adjacent scales is 100 ml; the scale range of the lower row of scales (9) is 0-100 ml, wherein the interval between two adjacent scales is 10 ml.
7. A bone marrow hematopoietic stem cell collection bag according to claim 6, characterized in that: The pointer assembly comprises: an L-shaped slider (10), a scale pointer (11), a limit block (12), a toggle plate (13), a slide rod (14) and a spring (15). Two L-shaped slide grooves (701) are arranged in parallel on the upper and lower sides of the front end of the counting ruler (7). The upper end of the L-shaped slide groove (701) is provided with a plurality of arc grooves (702). The upper plurality of arc grooves (702) respectively correspond to the plurality of scales on the upper row of scales (8), and the lower plurality of arc grooves (702) respectively correspond to the plurality of scales on the lower row of scales (9). The L-shaped slider (10) is slidably connected in the L-shaped slide groove (701) transversely. The front end of the L-shaped slider (10) is fixedly connected with a scale pointer (11), the arc-shaped groove (702) is movably engaged with a limit block (12), the limit block (12) is fixedly connected with a toggle plate (13) on the side facing the L-shaped slider (10), the L-shaped slider (10) is provided with a sliding hole (1001) on the side facing the limit block (12), a sliding rod (14) is slidably connected in the sliding hole (1001), the sliding rod (14) is fixedly connected with the toggle plate (13) on the side facing the toggle plate (13), and a spring (15) is sleeved on the sliding rod (14), the two ends of which are respectively pressed and contacted with the toggle plate (13) and the L-shaped slider (10).
8. A bone marrow hematopoietic stem cell collection bag according to claim 7, characterized in that: The pointer assembly further comprises: a limiting slide rail (16) and an L-shaped top plate (17); the limiting slide rail (16) is transversely fixedly connected to the bottom end of the L-shaped slide groove (701); the inner end of the L-shaped slider (10) is provided with a strip groove, the strip groove cooperates with the limiting slide rail (16); the outer end of the L-shaped slider (10) is fixedly connected to the L-shaped top plate (17).