3D printing body surface implanting template

Abstract

The utility model provides a 3D printing body surface implanting template, and belongs to the technical field of medical instruments. The body surface implanting template solves the problem that a product is damaged due to the fact that a channel of the body surface implanting template is easy to deform or bend. The 3D printing body surface implanting template comprises a body surface positioning plate, a channel platform is arranged on the side, away from the body surface, of the body surface positioning plate, a plurality of implanting needle channels are formed in the channel platform, one end of each implanting needle channel penetrates through the channel platform, and the other end of each implanting needle channel penetrates through the body surface positioning plate. The channel platform protects the needle inserting channel, and the possibility that the needle inserting channel is damaged in the cleaning and drying process is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology and relates to a 3D printed body surface implantation template. Background Technology

[0002] The application of brachytherapy in tumor treatment has gradually matured. Due to its advantages of high dose rate and minimal invasiveness, it has been clinically applied to the radiotherapy of solid tumors such as liver cancer and lung cancer. To achieve precise implantation, image-guided (CT or ultrasound) implantation or the use of surface implantation templates are often used in clinical practice to assist in the operation. Currently, 3D printing technology is commonly used to create surface implantation templates: image data of the patient's tumor site (including the body surface) is collected, positioning markers are marked at corresponding positions on the body surface, the surface positioning plate and implantation channel are designed by computer, and the surface implantation template is produced using 3D printing technology.

[0003] The existing technology is theoretically feasible, but the following problems exist in practical applications:

[0004] 1. The channel of the implantation template on the body surface is a separate cylindrical tube that protrudes from the positioning plate on the body surface. Due to the characteristic that 3D printed products (made of PLA or photocurable resin) are not resistant to high temperatures, this structure is prone to deformation or bending of the channel and damage to the product if it is squeezed by surrounding objects in high-temperature environments such as cleaning and disinfection.

[0005] 2. The insertion port of the implantation template on the body surface has no limit device, and the insertion needle enters and exits without damping. During the process of the insertion needle passing through the muscle tissue to complete radiotherapy, the movement of the muscle tissue will cause the insertion needle depth to change, resulting in a large deviation in the target dose.

[0006] 3. The surface positioning plate of the implantation template is in contact with the patient's skin. The puncture site of the implantation needle channel is a solid structure. There will be a small amount of bleeding during puncture. Since the surface positioning plate is in close contact with the skin, the bleeding will soak the implantation channel and the surface positioning plate, causing contamination of the implantation template and increasing the difficulty of cleaning. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a 3D-printed implantation template with good stability of the implantation needle channel.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A 3D printed implantation template for the body surface includes a body surface positioning plate. The body surface positioning plate has a channel platform on the side opposite to the body surface. The channel platform has a plurality of implantation needle channels. One end of the implantation needle channel passes through the channel platform, and the other end of the implantation needle channel passes through the body surface positioning plate.

[0010] The channel platform protects the implant needle channel, and the possibility of damage to the implant needle channel during cleaning and drying is greatly reduced.

[0011] In the 3D-printed body surface implant template, an elastic damping layer is attached to the channel platform, and a plurality of limiting holes corresponding to the implant needle channels are formed in the elastic damping layer.

[0012] The damping layer is made of an elastic material, and a plurality of limiting holes with a diameter smaller than that of the implant needle are formed in the damping layer to provide damping for the implant needle and limit the movement of the implant needle.

[0013] In the 3D-printed body surface implant template, the elastic damping layer is a silica gel layer. In addition to using a silica gel layer, a medical rubber layer or the like can also be used.

[0014] In the 3D-printed body surface implant template, a plurality of accommodating cavities corresponding to the implant needle channels are formed on the side of the body surface positioning plate facing the body surface, and the accommodating cavities are in communication with the implant needle channels corresponding thereto. The accommodating cavities provide a space for bleeding to avoid contamination of the implant needle channel and the body surface positioning plate.

[0015] In the 3D-printed body surface implant template, a plurality of accommodating cavities corresponding to the implant needle channels are formed on the side of the body surface positioning plate facing the body surface, and the accommodating cavities are in communication with the implant needle channels corresponding thereto. The accommodating cavities provide a space for bleeding to avoid contamination of the implant needle channel and the body surface positioning plate.

[0016] Compared with the prior art, the 3D-printed body surface implant template has the following advantages:

[0017] The channel platform is provided on the body surface positioning plate to protect the implant needle channel, and the possibility of damage to the implant needle channel during cleaning and drying is greatly reduced. The channel platform provides a plane for covering the elastic damping layer. The limiting holes in the elastic damping layer are sufficient to limit the movement of the implant needle after implantation, which is beneficial to maintaining the implant depth and facilitating precise radiotherapy. The accommodating cavities provide a space for bleeding to avoid contamination of the implant needle channel and the body surface positioning plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a 3D-printed body surface implant template.

[0019] In the figure, 1 is a body surface positioning plate, 2 is a positioning hole, 3 is an implant needle channel, 4 is a channel platform, 5 is an elastic damping layer, 6 is a limiting hole, and 7 is an accommodating cavity. DETAILED DESCRIPTION

[0020] The following is a specific embodiment of the present application and further describes the technical solution of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0021] AsFigure 1 The 3D printed body surface implantation template shown is made using 3D printing technology. It includes a body surface positioning plate 1, which has multiple positioning holes 2.

[0022] like Figure 1 As shown, a channel platform 4 is provided on the side of the body surface positioning plate 1 away from the body surface. Several insertion needle channels 3 are provided in the channel platform 4. One end of the insertion needle channel 3 passes through the channel platform 4, and the other end of the insertion needle channel 3 passes through the body surface positioning plate 1.

[0023] A channel platform 4 is provided on the body surface positioning plate 1 to protect the implantation needle channel 3. The possibility of the implantation needle channel 3 being damaged during cleaning and drying is greatly reduced. At the same time, the channel platform 4 provides a plane for covering the elastic damping layer 5.

[0024] like Figure 1 As shown, an elastic damping layer 5 is attached to the channel platform 4. Several limiting holes 6 are provided on the elastic damping layer 5, which are arranged one-to-one with the insertion needle channel 3. The diameter of the limiting holes 6 is smaller than the diameter of the insertion needle.

[0025] A limiting hole 6 is provided on the elastic damping layer 5. After the insertion is completed, the damping of the limiting hole 6 is sufficient to restrict the movement of the insertion needle, which helps to maintain the insertion depth and facilitates precise radiotherapy.

[0026] In this embodiment, the elastic damping layer 5 is a silicone layer.

[0027] like Figure 1 As shown, the body surface positioning plate 1 has several receiving cavities 7 on the side facing the body surface, each corresponding to one of the insertion needle channels 3. The receiving cavities 7 are connected to the corresponding insertion needle channels 3. The several receiving cavities 7 provide space for bleeding and prevent bleeding from contaminating the insertion needle channels 3 and the body surface positioning plate 1.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A 3D-printed body surface implantation template, comprising a body surface positioning plate (1), characterized in that, The side of the body surface positioning plate (1) facing away from the body surface is provided with a channel platform (4), a plurality of insertion needle channels (3) are arranged in the channel platform (4), one end of the insertion needle channel (3) penetrates the channel platform (4), and the other end of the insertion needle channel (3) penetrates the body surface positioning plate (1).

2. The 3D-printed body table for implant placement according to claim 1, wherein, An elastic damping layer (5) is attached to the channel platform (4), a plurality of limiting holes (6) corresponding to the insertion needle channels (3) are arranged on the elastic damping layer (5), and the diameter of the limiting hole (6) is smaller than the diameter of the insertion needle.

3. The 3D-printed body table for implant placement according to claim 2, wherein, The elastic damping layer (5) is a silica gel layer.

4. The 3D-printed body table for implant placement of claim 1, wherein, A plurality of accommodating cavities (7) corresponding to the insertion needle channels (3) are arranged on the side of the body surface positioning plate (1) facing the body surface, and the accommodating cavity (7) is in communication with the insertion needle channel (3) arranged correspondingly.

5. The 3D-printed body table for implant placement of claim 1, wherein, The body surface positioning plate (1) is provided with a positioning hole (2).

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