In-situ organ printing device
By designing an in-situ organ printing device that includes an operating arm, a storage tank, and a recycling component, the problems of material waste and nozzle clogging caused by bio-ink residues have been solved, achieving efficient ink recycling and normal operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-06
AI Technical Summary
During in situ organ printing, bio-ink residue inside the printing device can become damp and absorb water, affecting the printing operation and causing material waste.
An in situ organ printing device was designed, comprising an operating arm, a storage tank, a printhead, and a recycling component. The recycling component recovers residual bio-ink from the printhead and draws it into the storage tank, thus preventing ink solidification and printhead clogging.
It effectively recycles residual bio-ink, prevents printhead curing, reduces resource waste, and ensures the normal operation of the printing device.
Smart Images

Figure CN223972140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bioprinting equipment technology, specifically to an in situ organ printing device. Background Technology
[0002] 3D printing, also known as additive manufacturing, is a technique for creating objects layer by layer by converting digital 3D models into physical models. It is commonly used in industrial manufacturing or medical fields.
[0003] With the rapid development of modern technology, modern clinical medical technology is becoming increasingly intelligent and technologically advanced. The use of 3D printing technology to print human organ models is gradually becoming more and more common. When printing organs in situ, bio-ink is generally used. After printing, some bio-ink material remains in the printing device. If it is not recycled, the bio-ink will become damp and absorb water, affecting its internal biological activity. This will affect subsequent printing operations and also cause some material waste.
[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned shortcomings and provide an in situ organ printing device.
[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an in situ organ printing device, including an operating arm and a storage assembly composed of a storage box, a connecting tube, and a nozzle, and further including:
[0007] The recycling component includes a protective plate located on one side of the storage tank and a sealing plate located inside the storage tank, used to recycle residual printing material inside the printhead.
[0008] Furthermore, the storage box is fixedly installed at the top of one side of the operating arm, the nozzle is fixedly installed at the bottom of one side of the operating arm, and the connecting pipe connects the storage box and the nozzle.
[0009] Furthermore, a connecting rod is fixedly provided on one side of the sealing plate, and a movable strip is fixedly provided on the other end of the connecting rod.
[0010] Furthermore, one side of the moving strip is serrated, a cavity is formed at the center of the sealing plate, and the moving strip passes through the center of one side of the sealing plate.
[0011] Furthermore, a rotating gear is rotatably provided on the inner sidewall of the sealing plate, and one side of the moving strip meshes with the rotating gear.
[0012] Furthermore, a rotating handle is fixedly provided at the center of one side of the rotating gear, and one end of the rotating handle penetrates through the side wall of the storage box.
[0013] Compared with the prior art, this utility model has the following beneficial effects:
[0014] By setting up an operating arm, storage tank, printhead, and recycling component, the residual bio-ink located in the printhead is recovered by the recycling component and sucked into the storage tank. This prevents the bio-ink in the printhead from solidifying when not in use, reducing unnecessary resource waste and also avoiding printhead clogging that would cause inconvenience to the printing device. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0017] Figure 2 This is a partial structural diagram of the storage box and nozzle in one embodiment of the present invention;
[0018] Figure 3 This is a cross-sectional structural diagram of the protective plate in one embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of the structure of the storage box and the sealing plate in one embodiment of the present invention.
[0020] In the diagram: 1. Operating arm; 2. Storage component; 201. Storage box; 202. Connecting pipe; 203. Nozzle; 3. Recycling component; 301. Protective plate; 302. Sealing plate; 303. Connecting rod; 304. Moving bar; 305. Rotating handle; 306. Rotating gear. Detailed Implementation
[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] Please see Figure 1-4 .
[0025] This utility model provides a technical solution for an in-situ organ printing device: an in-situ organ printing device applied in the field of clinical human tissue printing, including an operating arm 1 and a storage component 2 consisting of a storage box 201, a connecting pipe 202 and a nozzle 203, and also includes a recovery component 3 consisting of a protective plate 301 disposed on one side of the storage box 201 and a sealing plate 302 disposed inside the storage box 201, for recovering the printing material remaining in the nozzle 203.
[0026] By setting up an operating arm 1, a storage tank 201, a printhead 203, and a recycling component 3, the recycling component 3 is used to recover the residual bio-ink located in the printhead 203 and suck it into the storage tank 201. This prevents the bio-ink in the printhead 203 from solidifying when not in use, reducing unnecessary resource waste and also preventing the printhead 203 from becoming clogged, which would cause inconvenience in the use of the printing device.
[0027] In one embodiment, the storage box 201 is fixedly installed at the top of one side of the operating arm 1, the nozzle 203 is fixedly installed at the bottom of one side of the operating arm 1, and the connecting pipe 202 connects the storage box 201 and the nozzle 203.
[0028] In this design, the storage tank 201 and the printhead 203 are connected by a connecting tube 202. The bio-ink stored in the storage tank 201 is transferred to the printhead 203, where it gradually solidifies after being irradiated by a UV lamp and is then pushed to the designated position for printing. The specific printing technology of the printhead 203 and the UV lamp is a known existing method and will not be elaborated on here.
[0029] In one embodiment, a connecting rod 303 is fixedly provided on one side of the sealing plate 302, and a moving strip 304 is fixedly provided on the other end of the connecting rod 303. One side of the moving strip 304 is serrated. A cavity is provided at the center of the sealing plate 302. The moving strip 304 passes through the center of one side of the sealing plate 302. A rotating gear 306 is rotatably provided on the inner side wall of the sealing plate 302. One side of the moving strip 304 meshes with the rotating gear 306. A rotating handle 305 is fixedly provided at the center of one side of the rotating gear 306. One end of the rotating handle 305 passes through the side wall of the storage box 201.
[0030] With this design, after printing is complete, manually turning the handle 305 drives the rotating gear 306, which in turn moves the meshing moving strip 304. As the moving strip 304 moves, it causes the connecting rod 303, which is fixedly connected to it, to move synchronously. This causes the sealing plate 302 to move upwards from the bottom of the storage box 201. Because the space between the sealing plate 302 and the storage box 201 is a sealed space, a suction force is generated, causing the nozzle 203 and the connecting tube 202 inside to... The bio-ink is drawn back into the storage tank 201, thus completing the effective recycling of the bio-ink. When bio-ink needs to be added, continue to rotate the handle 305 to disengage the sealing plate 302 from the storage tank 201, and then add the ink. It should be noted that the sealing plate 302 is provided with rubber pads around its periphery to ensure its sealing when in contact with the storage tank 201. At the same time, the rotating gear 306 is rotatably connected to the protective plate 301, and a damping shaft is provided at the center of the rotating gear 306. This is existing technology and will not be described in detail here.
[0031] 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 exemplary 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.
Claims
1. In-situ organ printing device, comprising an operating arm (1) and a storage assembly (2) consisting of a storage tank (201), a connecting pipe (202) and a spray head (203), characterized in that, Also include: The recovery assembly (3) includes a protective plate (301) arranged on one side of the storage tank (201) and a sealing plate (302) arranged inside the storage tank (201), which is used to recover the residual printing material in the nozzle (203).
2. The in situ organ printing device of claim 1, wherein: The storage tank (201) is fixedly arranged at the top end of one side of the operating arm (1), the nozzle (203) is fixedly arranged at the bottom end of one side of the operating arm (1), and the connecting pipe (202) communicates the storage tank (201) with the nozzle (203).
3. The in situ organ printing device of claim 2, wherein: One side of the sealing plate (302) is fixedly provided with a connecting rod (303), and the other end of the connecting rod (303) is fixedly provided with a moving strip (304).
4. The in situ organ printing device of claim 3, wherein: One side of the moving strip (304) is serrated, a cavity is formed in the center of the sealing plate (302), and the moving strip (304) penetrates the center of one side of the sealing plate (302).
5. The in situ organ printing device of claim 4, wherein: The inner side wall of the sealing plate (302) is rotatably provided with a rotating gear (306), and one side of the moving strip (304) is engaged with the rotating gear (306).
6. The in situ organ printing device of claim 5, wherein: The rotating handle (305) is fixedly arranged at the center of one side of the rotating gear (306), and one end of the rotating handle (305) penetrates the side wall of the storage tank (201).