Stem cell transplantation implanter

Abstract

The utility model discloses an implanter for stem cell transplantation, which belongs to the field of stem cell implantation and comprises a liquid storage tube and a sliding rod, a needle head is mounted at the bottom of the liquid storage tube, scale marks are uniformly carved on the outer surface of the liquid storage tube along the axis, the interior of the liquid storage tube is hollow, the top of the liquid storage tube is open, and a limiting plate is arranged on the outer side of the top of the liquid storage tube. An internal thread is arranged on the upper portion of the inner wall of the liquid storage pipe, a piston head is arranged at one end of the sliding rod and slides in the liquid storage pipe, a sealing plug slides on the surface of the sliding rod and is screwed to the inner side of the internal thread, a push plate is arranged at the top of the sliding rod, and limiting grooves are evenly and symmetrically formed in the two sides of the outer surface of the sliding rod along the axis; a quantitative limiting mechanism is further installed on the surface of the sliding rod, during implantation, the sliding rod can be limited by controlling the quantitative limiting mechanism, then the injection amount can be preset, after injection is in place, the piston head cannot move, the single-time implantation amount is accurately controlled, and workers are assisted in improving the implantation efficiency and quality.

Description

Technical Field

[0001] The utility model relates to the field of stem cell implantation, and more particularly to a stem cell transplant implanter. Background Art

[0002] Currently, in clinical treatment, when joint swelling, pain, and fluid accumulation occur due to factors such as joint injury and arthritis, injectable transplants are used to inject medication into the bone and joint cavities to alleviate or cure the lesions. Mesenchymal stem cells are a type of pluripotent stem cell with the ability to self-renew and differentiate in multiple directions. They are considered the most promising type of pluripotent stem cell from non-hematopoietic tissue for treating a variety of diseases. They are clinically used to repair tissue injuries such as bone, cartilage, and joint injuries, and partial meniscus resection of the knee, and have long-term development prospects.

[0003] The prior art discloses a stem cell transplant implanter (patent publication number: CN219271789U) that moves the connecting seat through the cooperation of internal and external threads, and then squeezes the piston to achieve step-by-step movement to control the implant amount. However, during use, the injection molding must be controlled by rotating the shrink ring, which is too inefficient. Moreover, the rotation will cause the syringe to shake, which increases the injection time and the patient's pain time. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a stem cell transplant implanter that can achieve precise control of the single injection volume to assist workers in improving the efficiency and quality of stem cell implantation.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] The top of the piston rod is provided with an ejector pin, and the ejector pin is installed in the ejector pin.

[0009] Furthermore, an oblique rod is provided on one side of the ends of the two movable clamping rods close to each other, and an arc head is provided on the inner side of the end of the oblique rod, and the arc head is placed on the upper surface of the extension plate.

[0010] Furthermore, a tension spring is connected between the ends of the two movable clamping rods close to the oblique rod.

[0011] Furthermore, a limiting platform is provided at one end of the upper surface of the extension plate away from the adjustment plate, and a control rod is slidably passed through the inner side of the limiting platform.

[0012] Furthermore, an extrusion cone plate is provided on the side of the control rod close to the slide rod, and the extrusion cone plate is placed between the two oblique rods. The extrusion cone plate is an isosceles triangle structure, and the two arc heads are in contact with the two side surfaces of the extrusion cone plate respectively.

[0013] Furthermore, a convex strip is provided on the upper surface of the piston head, and a groove matching the convex strip is provided on the lower surface of the sealing plug.

[0014] 3. Beneficial effects

[0015] Compared with the existing technology, the advantages of the present invention are: the present invention provides a stem cell transplant implanter, which drives the piston head to move inside the liquid storage tube through the push plate, and then squeezes the stem cell preparation to achieve transplantation. During implantation, the sliding rod can be limited by controlling the quantitative limit mechanism, and the injection volume can be preset. When the injection is in place, the piston head cannot move, so as to accurately control the single implantation volume, and assist staff in improving implantation efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the implanter of the present invention;

[0017] Figure 2This is a schematic diagram of the slide bar structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the liquid storage tube structure of the utility model;

[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure of area A.

[0020] Explanation of the numbers in the figure: 1. Liquid storage tube; 101. Scale line; 102. Limit plate; 103. Internal thread; 2. Needle; 3. Sliding rod; 301. Piston head; 302. Raised strip; 303. Sealing plug; 304. Groove; 305. Limiting groove; 306. Push plate; 4. Adjusting plate; 401. Extension plate; 5. Movable locking rod; 501. Oblique rod; 502. Arc head; 503. Tension spring; 504. Limiting platform; 505. Control rod; 506. Extrusion cone plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example:

[0023] See also Figures 1-4 As shown, the stem cell transplant implanter includes a liquid storage tube 1 and a slide rod 3. A needle 2 is installed at the bottom of the liquid storage tube 1. The needle 2 and the liquid storage tube 1 are installed by plugging. The outer surface of the liquid storage tube 1 is evenly engraved with scale lines 101 along the axis. The liquid storage tube 1 is made of transparent material, and the relative position of the piston head 301 and the scale lines 101 can be observed from the outside. The inside of the liquid storage tube 1 is hollow and the top is open. A limit plate 102 is provided on the outside of the top of the liquid storage tube 1 to increase the point of force during implantation. An internal thread 103 is provided on the upper inner wall of the liquid storage tube 1. A piston head 301 is provided at one end of the slide rod 3. The piston head 301 slides inside the liquid storage tube 1 to push The movable slide rod 3 drives the piston head 301 to extrude the stem cell preparation to achieve implantation. A sealing plug 303 slides on the surface of the slide rod 3. The sealing plug 303 is screwed into the inner side of the internal thread 103 to limit the slide rod 3 through the sealing plug 303 to ensure the stability of the slide rod 3 during movement. A push plate 306 is provided on the top of the slide rod 3. Limiting grooves 305 are evenly and symmetrically provided on both sides of the outer surface of the slide rod 3 along the axis. A quantitative limiting mechanism is also installed on the surface of the slide rod 3. The quantitative limiting mechanism includes an adjustment plate 4 sliding on the surface of the slide rod 3. The adjustment plate 4 can slide along the axis of the surface of the slide rod 3 to adjust the single implantation amount.

[0024] Please refer to Figure 2 and Figure 4 As shown, an extension plate 401 is provided on one side of the adjustment plate 4, and a movable clamping rod 5 is symmetrically installed on the upper surface of the adjustment plate 4 through a pin axis. The two movable clamping rods 5 are respectively placed on both sides of the slide bar 3, and the rotating axis of the movable clamping rod 5 is placed on the side of the adjustment plate 4 away from the extension plate 401. The movable clamping rod 5 is adapted to the internal size of the limiting groove 305, and the two are coordinated to realize the fixation of the quantitative limiting mechanism and the slide bar 3. The sides where the ends of the two movable clamping rods 5 are close to each other are provided with an inclined rod 501, and the distance between the two movable clamping rods 5 can be reduced by the inclined rod 501. An arc head 502 is provided on the inner side of the end of the inclined rod 501, and the arc head 502 is placed on the upper surface of the extension plate 401.

[0025] Among them, a tension spring 503 is also connected between the ends of the two movable clamping rods 5 close to the oblique rod 501. The tension of the tension spring 503 is used to make the two movable clamping rods 5 always have the force to approach each other, and then cooperate with the limiting groove 305 to achieve fixation.

[0026] Please refer to Figure 4 As shown, a limit platform 504 is provided on the end of the upper surface of the extension plate 401 facing away from the adjustment plate 4, and a control rod 505 is slidingly passed through the inner side of the limit platform 504. An extrusion cone plate 506 is provided on the side of the control rod 505 close to the slide bar 3. The extrusion cone plate 506 is placed between the two oblique rods 501. The extrusion cone plate 506 is an isosceles triangle structure. The two arc heads 502 are in contact with the two side surfaces of the extrusion cone plate 506 respectively. The control rod 505 is pushed to control the extrusion cone plate 506 to move toward the slide bar 3, and then the two arc heads 502 are squeezed, so that the two movable clamping rods 5 move away from each other and no longer cooperate with the limit groove 305, and then the position of the quantitative limit mechanism can be adjusted.

[0027] Please refer to Figure 2 and Figure 4 As shown, a ridge 302 is provided on the upper surface of the piston head 301, and a groove 304 adapted to the ridge 302 is provided on the lower surface of the sealing plug 303, so that the sealing plug 303 can be rotated by the cooperation of the ridge 302 and the groove 304 during disassembly.

[0028] Working principle: Due to the screwing of the sealing plug 303 and the internal thread 103, the sealing plug 303 and the liquid storage tube 1 remain fixed, and then the slide rod 3 is limited so that the slide rod 3 can only slide along the axis. Conversely, when it is necessary to disassemble, the push plate 306 can be pulled outward to make the ridge 302 and the groove 304 cooperate with each other. At this time, the sliding rod 3 can be rotated to make the sealing plug 303 and the liquid storage tube 1 rotate relative to each other, thereby realizing the disassembly work. During implantation, the amount of stem cells sucked in can be judged by the position of the piston head 301 and the scale line 101. At the same time, due to the presence of the tension spring 503, the two movable cards The rods 5 are close to each other and cooperate with the limit slots 305 at the corresponding positions to achieve fixation. At this time, the relative positions of the adjustment plate 4 and the slide bar 3 remain fixed. The distance between the adjustment plate 4 and the limit plate 102 is controlled to adjust the single implantation amount. During adjustment, the control rod 505 is pushed inward to drive the extrusion cone plate 506 to move toward the axis of the slide bar 3. Then, the triangular extrusion cone plate 506 can be used to drive the end of the movable clamping rod 5 to separate, so as to adjust the quantitative limit mechanism and push the push plate 306 to achieve implantation. When the adjustment plate 4 is limited by the limit plate 102, it cannot be pushed in, thereby ensuring the amount of single implantation.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A stem cell transplant implanter, comprising a liquid storage tube (1) and a slide rod (3), wherein a needle (2) is installed at the bottom of the liquid storage tube (1), and characterized in that: The outer surface of the liquid storage tube (1) is uniformly engraved with scale lines (101) along the axis. The inside of the liquid storage tube (1) is hollow and the top is open. A limit plate (102) is provided on the outside of the top of the liquid storage tube (1). An internal thread (103) is provided above the inner wall of the liquid storage tube (1). A piston head (301) is provided at one end of the slide rod (3). The piston head (301) slides inside the liquid storage tube (1). A sealing plug (303) slides on the surface of the slide rod (3). The sealing plug (303) is screwed on the inside of the internal thread (103). A push plate ( 306), both sides of the outer surface of the slide bar (3) are evenly and symmetrically provided with limit grooves (305) along the axis, and a quantitative limit mechanism is also installed on the surface of the slide bar (3), and the quantitative limit mechanism includes an adjustment plate (4) sliding on the surface of the slide bar (3), an extension plate (401) is provided on one side of the adjustment plate (4), and a movable clamping rod (5) is symmetrically installed on the upper surface of the adjustment plate (4) through a pin shaft, and the rotating axis of the movable clamping rod (5) is placed on the side of the adjustment plate (4) away from the extension plate (401), and the movable clamping rod (5) is adapted to the internal size of the limit groove (305).

2. The stem cell transplant implanter according to claim 1, wherein: An oblique rod (501) is provided on the side where the ends of the two movable clamping rods (5) are close to each other, and an arc head (502) is provided on the inner side of the end of the oblique rod (501), and the arc head (502) is placed on the upper surface of the extension plate (401).

3. The stem cell transplant implanter according to claim 2, wherein: A tension spring (503) is also connected between one end of the two movable clamping rods (5) close to the oblique rod (501).

4. The stem cell transplant implanter according to claim 3, wherein: A limiting platform (504) is provided on one end of the upper surface of the extension plate (401) away from the adjustment plate (4), and a control rod (505) is slidably passed through the inner side of the limiting platform (504).

5. The stem cell transplant implanter according to claim 4, characterized in that: An extrusion cone plate (506) is provided on one side of the control rod (505) close to the slide rod (3), and the extrusion cone plate (506) is placed between the two oblique rods (501). The extrusion cone plate (506) is an isosceles triangle structure, and the two arc heads (502) are in contact with the two side surfaces of the extrusion cone plate (506) respectively.

6. The stem cell transplant implanter according to claim 1, wherein: The upper surface of the piston head (301) is provided with a convex strip (302), and the lower surface of the sealing plug (303) is provided with a groove (304) adapted to the convex strip (302).

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