Transplanting device for stem cells

Abstract

The utility model relates to the technical field of stem cell transplantation, in particular to a stem cell transplantation device which comprises a syringe, a piston rod is arranged in the syringe, a transplantation needle is mounted at one end of the syringe, a threaded pipe is fixed at one end of the surface of the syringe, a control valve is mounted on the surface of the threaded pipe, and a stem cell is arranged on the control valve. A push-and-pull mechanism is arranged on the surface of the injection cylinder, a supporting piece, a handle, a guide rod and a hanging bolt are arranged in the push-and-pull mechanism, a supporting mechanism is arranged on the outer side of the transplanting needle head and composed of a supporting assembly and an inner threaded ring, and a multi-sealing mechanism is arranged on the surface of the threaded pipe. And a sealing ring, an upper sealing air bag, a lower sealing air bag and an air guide hose are arranged in the multi-sealing mechanism. The stability of the transplanting device in use is improved, the sealing effect of the threaded pipe in use of the transplanting device is improved, push-and-pull work can be completed with one hand, and labor is saved.

Description

Technical Field

[0001] This utility model relates to the field of stem cell transplantation technology, specifically to a device for stem cell transplantation. Background Technology

[0002] A stem cell transplantation device is a device that introduces one (or a group of) cells into a recipient embryo using a syringe. Stem cells are a type of pluripotent cell with self-replication capabilities. They have the biological characteristics and abilities to divide, proliferate, and differentiate into various cell types. They can differentiate into various functional cells and have the potential to regenerate various tissues, organs, and the human body, thereby achieving the goal of reconstructing bodily functions.

[0003] The syringe used for stem cell transplantation only contacts the transplantation site through the needle, and the needle is relatively thin and long, which affects the stability of the transplantation device during use. The surface of the transplantation device is fixed with a tube for connecting to the stem cell storage bottle. The tube is usually sealed to the storage bottle by a sealing ring, but the sealing effect of the sealing ring alone is poor. The syringe used for stem cell transplantation can be operated with one hand when pushing out the aspirated stem cells, but it often requires the cooperation of both hands when aspirating stem cells, which is quite laborious. Utility Model Content

[0004] The purpose of this invention is to provide a stem cell transplantation device to solve the problems mentioned in the background art, such as low stability, poor sealing effect of connecting pipes, and laborious use of the transplantation device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stem cell transplantation device, comprising an injection cylinder, a piston rod disposed inside the injection cylinder, a transplantation needle mounted at one end of the injection cylinder, a threaded tube fixed to one end of the surface of the injection cylinder, a control valve mounted on the surface of the threaded tube, a push-pull mechanism disposed on the surface of the injection cylinder, the push-pull mechanism comprising a support plate, a handle, a guide rod and a latch, a support mechanism disposed outside the transplantation needle, the support mechanism comprising a support component and an inner threaded ring, and a multi-seal mechanism disposed on the surface of the threaded tube, the multi-seal mechanism comprising a sealing ring, an upper sealing airbag, a lower sealing airbag and a gas guiding hose.

[0006] Preferably, a support plate is fixed to one end of the syringe, and a handle is provided on one side of the support plate, with the handle fixed to the bottom of the syringe.

[0007] Preferably, one end of the piston rod is fixed with a guide rod, and one end of the guide rod passes through the support plate and the handle in sequence and is fixed with a hook.

[0008] Preferably, one end of the syringe is fixed with an inner threaded ring, and a support component is provided on the outer side of the inner threaded ring.

[0009] Preferably, the support assembly includes a support disc, a sleeve, a extension spring, an adjusting post, and an outer threaded ring. The outer threaded ring is threaded onto the outer side of the inner threaded ring, and a support disc is provided on one side of the outer threaded ring. The support disc is sleeved on the outside of the transplant needle.

[0010] Preferably, each of the support plates has a sleeve fixed to its surface, and an adjusting column is slidably disposed inside the sleeve. One end of the adjusting column is fixedly connected to the surface of the outer threaded ring, and a tension spring is fixed between the adjusting column and the sleeve.

[0011] Preferably, one end of the threaded tube is wrapped with a sealing ring, and an upper sealing airbag is adhered to the bottom of the sealing ring. The upper sealing airbag has a conical structure, and its surface is bonded and fixed to the outer wall of the threaded tube.

[0012] Preferably, a lower sealing airbag is adhered to the surface of the threaded tube, the lower sealing airbag is located below the upper sealing airbag, and a ducted air hose is fixed to the surface of each lower sealing airbag, one end of the ducted air hose being connected to the upper sealing airbag.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the transplantation device for stem cells not only improves the stability of the transplantation device during use and improves the sealing effect of the threaded tube during use, but also allows the push-pull operation to be completed with one hand, which is more labor-saving;

[0014] With the support mechanism in place, the support assembly can be fitted onto the outside of the inner threaded ring before use. The outer threaded ring is then fixed by tightening the threads of the inner and outer threaded rings. At this time, the support plate can provide auxiliary support for the transplantation device, making the transplantation device more stable. Meanwhile, the sliding cooperation between the sleeve and the adjusting column facilitates the movement of the syringe as the transplantation needle is inserted into the transplantation site, thereby realizing the auxiliary support function of the transplantation device and improving the stability of the transplantation device during use.

[0015] By setting up a multi-seal mechanism, the stem cell storage bottle is threadedly connected to the threaded tube. At this time, the mouth of the stem cell storage bottle is in close contact with the surface of the sealing ring, which initially seals it with the threaded tube. At the same time, the mouth of the stem cell storage bottle squeezes the upper sealing airbag, which forces some of the air inside the upper sealing airbag to the lower sealing airbag through the air guide hose. The lower sealing airbag is then inflated, making it in close contact with the inner wall of the mouth of the stem cell storage bottle, which seals it with the threaded tube again. This achieves the multi-seal function of the transplantation device for the stem cell storage bottle and the threaded tube, thereby improving the sealing effect of the threaded tube when the transplantation device is used.

[0016] Equipped with a push-pull mechanism, the control valve is opened to allow stem cells from the stem cell storage bottle to enter the syringe through the threaded tube. At this point, the handle can be held, and the index finger inserted into the latch. The index finger then pulls the latch, causing it to slide along the handle and support plate, pushing the piston rod outward to draw the stem cells into the syringe. After the stem cells are drawn in, the control valve can be closed, and the transplantation device can be placed at the transplantation site. The index and middle fingers can then be placed on the support plate, and the thumb can press the piston rod to push out the stem cells from the syringe. This design allows the transplantation device to easily push and pull the piston rod, enabling one-handed operation with minimal effort. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is an enlarged structural schematic diagram of the multi-sealing mechanism of this utility model;

[0020] Figure 4 This is an enlarged structural schematic diagram of the support mechanism of this utility model.

[0021] In the diagram: 1. Injector; 11. Piston rod; 12. Transplant needle; 13. Control valve; 14. Threaded tube; 2. Push-pull mechanism; 21. Support plate; 22. Handle; 23. Guide rod; 24. Hook; 3. Support mechanism; 31. Support assembly; 311. Support plate; 312. Sleeve; 313. Extension spring; 314. Adjusting column; 315. External threaded ring; 32. Internal threaded ring; 4. Multiple sealing mechanism; 41. Sealing ring; 42. Upper sealing airbag; 43. Lower sealing airbag; 44. Air guide hose. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0023] The present invention provides a structure for a stem cell transplantation device as follows: Figure 1 and Figure 2 As shown, the syringe includes a syringe 1, inside which a piston rod 11 is provided. A transplant needle 12 is installed at one end of the syringe 1. A threaded tube 14 is fixed to one end of the surface of the syringe 1. A control valve 13 is installed on the surface of the threaded tube 14. A push-pull mechanism 2 is provided on the surface of the syringe 1. The push-pull mechanism 2 includes a support plate 21, a handle 22, a guide rod 23, and a latch 24. The support plate 21 is fixed to one end of the syringe 1. A handle 22 is provided on one side of the support plate 21. The handle 22 is fixed to the bottom of the syringe 1. A guide rod 23 is fixed to one end of the piston rod 11. One end of the guide rod 23 passes through the support plate 21 and the handle 22 in sequence and is fixed with a latch 24.

[0024] In use, open the control valve 13 to allow the stem cells in the stem cell storage bottle to enter the syringe 1 through the threaded tube 14. At this time, hold the handle 22 and insert your index finger into the latch 24. Then, pull the latch 24 with your index finger, causing the latch 24 to drive the guide rod 23 to slide along the handle 22 and the support plate 21, pushing the piston rod 11 outward to draw the stem cells into the syringe 1. After the aspiration is complete, close the control valve 13, then take the transplant device to the transplant site, place your index and middle fingers on the surface of the support plate 21, and then press the piston rod 11 with your thumb to push out the stem cells inside the syringe 1, so as to realize the function of the transplant device to easily push and pull the piston rod 11.

[0025] Furthermore, such as Figure 4As shown, a support mechanism 3 is provided on the outside of the transplant needle 12. The support mechanism 3 consists of a support component 31 and an inner threaded ring 32. One end of the injection cylinder 1 is fixed with an inner threaded ring 32. The support component 31 is provided on the outside of the inner threaded ring 32. The support component 31 contains a support plate 311, a sleeve 312, a extension spring 313, an adjusting column 314, and an outer threaded ring 315. The outer threaded ring 315 is threaded on the outside of the inner threaded ring 32. The support plate 311 is provided on one side of the outer threaded ring 315. The support plate 311 is sleeved on the outside of the transplant needle 12. The sleeve 312 is fixed on the surface of the support plate 311. The adjusting column 314 is slidably provided inside the sleeve 312. One end of the adjusting column 314 is fixedly connected to the surface of the outer threaded ring 315. The extension spring 313 is fixed between the adjusting column 314 and the sleeve 312.

[0026] Before use, the support component 31 can be fitted onto the outside of the inner threaded ring 32, and the outer threaded ring 315 can be fixed by tightening the threads of the inner threaded ring 32 and the outer threaded ring 315. At this time, the support plate 311 can provide auxiliary support for the transplantation device, making the transplantation device more stable. At the same time, the sliding cooperation between the sleeve 312 and the adjusting column 314 facilitates the movement of the injection cylinder 1 as the transplantation needle 12 is inserted into the transplantation site, so as to realize the auxiliary support function of the transplantation device.

[0027] Furthermore, such as Figure 3 As shown, the surface of the threaded tube 14 is provided with a multi-seal mechanism 4. The multi-seal mechanism 4 includes a sealing ring 41, an upper sealing airbag 42, a lower sealing airbag 43, and a venting hose 44. One end of the threaded tube 14 is wrapped with a sealing ring 41. The bottom of the sealing ring 41 is attached to the upper sealing airbag 42. The upper sealing airbag 42 has a conical structure. The surface of the upper sealing airbag 42 is bonded and fixed to the outer wall of the threaded tube 14. The surface of the threaded tube 14 is attached to the lower sealing airbag 43, which is located below the upper sealing airbag 42. The surface of the lower sealing airbag 43 is fixed with a venting hose 44, and one end of the venting hose 44 is connected to the upper sealing airbag 42.

[0028] In use, the stem cell storage bottle is threadedly connected to the threaded tube 14. At this time, the mouth of the stem cell storage bottle is in close contact with the surface of the sealing ring 41, which initially seals it with the threaded tube 14. At the same time, the mouth of the stem cell storage bottle is squeezed to the upper sealing airbag 42, which forces some of the air inside the upper sealing airbag 42 through the air guide hose 44 to the lower sealing airbag 43. The lower sealing airbag 43 is then inflated, making it in close contact with the inner wall of the mouth of the stem cell storage bottle, which seals it with the threaded tube 14 again. This achieves the multiple sealing functions of the transplantation device for the stem cell storage bottle and the threaded tube 14.

[0029] Working principle: In use, first connect the stem cell storage bottle to the threaded tube 14. At this time, the mouth of the stem cell storage bottle is in close contact with the surface of the sealing ring 41, which initially seals it with the threaded tube 14. At the same time, the mouth of the stem cell storage bottle squeezes the upper sealing airbag 42, which forces some of the air inside the upper sealing airbag 42 through the air guide hose 44 to the lower sealing airbag 43. The lower sealing airbag 43 is then inflated, making it in close contact with the inner wall of the mouth of the stem cell storage bottle, which seals it with the threaded tube 14 again. This achieves multiple sealing functions between the transplantation device and the stem cell storage bottle and the threaded tube 14, thereby improving the sealing effect of the threaded tube 14 when the transplantation device is used.

[0030] Then, open the control valve 13 to allow the stem cells in the stem cell storage bottle to enter the syringe 1 through the threaded tube 14. At this time, hold the handle 22 and insert your index finger into the latch 24. Then, pull the latch 24 with your index finger, causing the latch 24 to drive the guide rod 23 to slide along the handle 22 and the support plate 21, pushing the piston rod 11 outward to draw the stem cells into the syringe 1. After the aspiration is complete, close the control valve 13, then take the transplant device to the transplant site, place your index and middle fingers on the surface of the support plate 21, and then press the piston rod 11 with your thumb to push out the stem cells inside the syringe 1. This makes it easy to push and pull the piston rod 11 of the transplant device, which can be done with one hand, saving effort.

[0031] Before use, the support component 31 can be fitted onto the outside of the inner threaded ring 32, and the outer threaded ring 315 can be fixed by tightening the threads of the inner threaded ring 32 and the outer threaded ring 315. At this time, the support plate 311 can provide auxiliary support for the transplantation device, making the transplantation device more stable. At the same time, the sliding cooperation between the sleeve 312 and the adjusting column 314 facilitates the movement of the injection cylinder 1 as the transplantation needle 12 is inserted into the transplantation site, so as to realize the auxiliary support function of the transplantation device, thereby improving the stability of the transplantation device during use, and finally completing the use of the transplantation device.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for stem cell transplantation, comprising an injection cylinder (1), characterized in that: The syringe (1) is provided with a piston rod (11) inside. A transplant needle (12) is installed at one end of the syringe (1). A threaded tube (14) is fixed at one end of the surface of the syringe (1). A control valve (13) is installed on the surface of the threaded tube (14). A push-pull mechanism (2) is provided on the surface of the syringe (1). The push-pull mechanism (2) includes a support plate (21), a handle (22), a guide rod (23), and a latch (24). A support mechanism (3) is provided on the outside of the transplant needle (12). The support mechanism (3) is composed of a support component (31) and an inner threaded ring (32). A multi-seal mechanism (4) is provided on the surface of the threaded tube (14). The multi-seal mechanism (4) includes a sealing ring (41), an upper sealing airbag (42), a lower sealing airbag (43), and a gas guiding hose (44).

2. The stem cell transplantation device according to claim 1, characterized in that: One end of the syringe (1) is fixed with a support plate (21), and a handle (22) is provided on one side of the support plate (21). The handle (22) is fixed to the bottom of the syringe (1).

3. The stem cell transplantation device according to claim 2, characterized in that: One end of the piston rod (11) is fixed with a guide rod (23), and one end of the guide rod (23) passes through the support plate (21) and the handle (22) in sequence and is fixed with a latch (24).

4. The stem cell transplantation device according to claim 1, characterized in that: One end of the injection cylinder (1) is fixed with an inner threaded ring (32), and a support assembly (31) is provided on the outer side of the inner threaded ring (32).

5. A stem cell transplantation device according to claim 4, characterized in that: The support assembly (31) contains a support plate (311), a sleeve (312), a extension spring (313), an adjusting column (314), and an outer threaded ring (315). The outer threaded ring (315) is threaded on the outer side of the inner threaded ring (32). The support plate (311) is provided on one side of the outer threaded ring (315). The support plate (311) is sleeved on the outside of the transplant needle (12).

6. A stem cell transplantation device according to claim 5, characterized in that: The surface of the support plate (311) is fixed with a sleeve (312), and an adjusting column (314) is slidably arranged inside the sleeve (312). One end of the adjusting column (314) is fixedly connected to the surface of the outer threaded ring (315), and a tension spring (313) is fixed between the adjusting column (314) and the sleeve (312).

7. The stem cell transplantation device according to claim 1, characterized in that: One end of the threaded tube (14) is wrapped with a sealing ring (41), and an upper sealing airbag (42) is adhered to the bottom of the sealing ring (41). The upper sealing airbag (42) has a conical structure, and the surface of the upper sealing airbag (42) is bonded and fixed to the outer wall of the threaded tube (14).

8. A stem cell transplantation device according to claim 7, characterized in that: The threaded tube (14) has a lower sealing airbag (43) attached to its surface. The lower sealing airbag (43) is located below the upper sealing airbag (42). The surface of the lower sealing airbag (43) is fixed with a gas guiding hose (44). One end of the gas guiding hose (44) is connected to the upper sealing airbag (42).

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