CN215938772U

CN215938772U - Radioactive particle chain silica gel sheet device

Info

Publication number: CN215938772U
Application number: CN202122319947.7U
Authority: CN
Inventors: 韩雪冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-04
Anticipated expiration: 2031-09-24

Abstract

The utility model provides a radioactive particle chain silica gel sheet device, which belongs to the technical field of medical instruments and comprises a silica gel sheet, wherein a plurality of raised particle placing blocks are arranged on the surface of the silica gel sheet; the particle placing block comprises a silica gel shell connected with the surface of the silica gel sheet, a radioactive particle implanting hole is formed in the silica gel shell, and the radioactive particle implanting hole is sealed through a silica gel film. According to the radioactive particle chain silica gel sheet device provided by the utility model, the plurality of raised particle placing blocks are arranged on the surface of the silica gel sheet, the particle implantation device penetrates through the silica gel film to implant radioactive particles into the particle placing blocks, the position of the radioactive particles is fixed through the particle placing blocks, and the device can be used for implanting particles on the surfaces of solid tumors, tumor beds and blood vessels, so that the treatment effect is improved, and the occurrence of adverse reactions is reduced.

Description

Radioactive particle chain silica gel sheet device

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly discloses a radioactive particle chain silica gel sheet device.

Background

At present, a plurality of particle implantation needles are vertically inserted into a tumor part under direct vision in an open surgery, the distance between the implantation needles is 1cm, the insertion vertical depth is 0.3-2.3 cm, <1cm is implanted with 1 particle, and >2cm is implanted with 1 particle by utilizing the backward mode of an implantation gun at the vertical distance of 1 cm. The particles are implanted into the needle core and withdrawn, and the particles are implanted after the needle tube is observed to have no obvious bleeding, so as to avoid damaging the great vessels. After the implanted particles are pulled out of the needle tube, the local part of the implanted particles is pressed by sterile gauze for 5 min, so that the needle eye bleeding and the particle slippage can be avoided. The perivascular tumor bed is implanted by adopting a method of adhering sandwich particle block biological adhesive and suturing to surround blood vessels. Preparation of intraoperative "sandwich" particle block: under the conditions of sterility and radiation protection shielding, 1/2 of 1 particle is vertically inserted into one piece of gelatin sponge by a particle implantation gun, the distance between the particles is 1cm, the number of the particles is 4-6, the other piece of gelatin sponge is covered and extruded to insert another 1/2 of the particles, then the gelatin sponge is wrapped by absorbable gauze or hemostatic gauze, and the gauze is sewn by a No. 1 silk thread.

From the above particle implantation operation, it can be seen that the particles can be fixed and not easily move after the particles are implanted in the tumor body of the solid tumor, and after the particles on the surface of the solid tumor, the tumor bed and the surface of the blood vessel are implanted, the particles are likely to move, which affects the treatment effect and may cause adverse reactions, thereby limiting the clinical application of radioactive particle implantation to a great extent.

Chinese patent CN 208481895U discloses a polylactic acid patch for local precise radiotherapy, which uses polylactic acid strips to form a square grid frame, and sequentially inserts iodine-125 particles into the grid cross coincident points to form a patch that can be attached to the surface of a tumor. However, the grid of the patent is complex to manufacture, no other fixing mode is available after the iodine-125 particles are inserted into the cross points of the polylactic acid strips, and the risk of particle falling and displacement exists.

Chinese patent CN 211068740U discloses a particle matrix mesh for brachytherapy, which is placed on a bioabsorbable perforated mesh through holes with particle chains, and then the mesh is attached to the tissue surface and sewn and fixed. However, the manufacturing of the particle chain and the manufacturing of the perforated mesh cloth are complex, the particle chain and the meshes of the bio-absorbable mesh cloth are not fixed, the absorbable mesh cloth and the tube have the risk of particle shedding and displacement after being absorbed by the body, and the particle matrix mesh cloth is placed and fixed under the laparoscope, so that the operation is complex and the difficulty is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems that after the particles on the surface of the existing solid tumor, tumor bed and blood vessel are implanted, the particles are easy to shift, the treatment effect is influenced and adverse reaction is possibly caused, the utility model provides a radioactive particle chain silica gel sheet device.

In order to achieve the purpose, the utility model provides a radioactive particle chain silica gel sheet device, which comprises a silica gel sheet, wherein the surface of the silica gel sheet is provided with a plurality of raised particle placing blocks; the particle placing block comprises a silica gel shell connected with the surface of the silica gel sheet, a radioactive particle implanting hole is formed in the silica gel shell, and the radioactive particle implanting hole is sealed through a silica gel film.

Furthermore, the silica gel shell is a semi-cylindrical shell, and the radioactive particle implantation hole is positioned on the semi-circular surface of the silica gel shell.

Further, the radioactive particle implantation hole is located on the axis of symmetry of the semicircular surface.

Further, the edge of the silicone sheet is provided with a plurality of Y-shaped protrusions.

Furthermore, the silica gel sheet is a square sheet, and each corner is provided with a Y-shaped protrusion.

Further, the radioactive particle chain silica gel sheet device is made of medical silicon rubber.

Further, the length of the silica gel sheet is 20mm-80mm, the width is 20mm-80mm, and the thickness is 1.0 mm; the length of the semi-cylindrical shell is 6.0mm, the width of the semi-cylindrical shell is 1.5mm, the height of the semi-cylindrical shell is 1.5mm, and the radial distance between two adjacent semi-cylindrical shells is 5mm or 10 mm; the thickness of the silica gel film is 0.5 mm; the dimensional tolerance is 0.1 mm.

Further, the particle placement block is pre-loaded with radioactive particles.

Further, the radioactive particles are iodine-125 particles, palladium-103 particles, gold-198 particles, cesium-131 particles, ytterbium-169 particles, yttrium-90 particles, or phosphorus-32 particles.

The utility model has the following beneficial effects:

according to the radioactive particle chain silica gel sheet device provided by the utility model, the plurality of raised particle placing blocks are arranged on the surface of the silica gel sheet, the particle implantation device penetrates through the silica gel film to implant radioactive particles into the particle placing blocks, the position of the radioactive particles is fixed through the particle placing blocks, and the device can be used for implanting particles on the surfaces of solid tumors, tumor beds and blood vessels, so that the treatment effect is improved, and the occurrence of adverse reactions is reduced.

Drawings

FIG. 1 is a view showing an expanded state of a radioactive particle chain silicone sheet device;

FIG. 2 is a schematic structural diagram of a particle placement block;

fig. 3 is a view showing a rolled state of the radioactive particle chain silica gel sheet device.

In the figure: a silica gel sheet 1; a silica gel shell 2; a radioactive seed implantation hole 3; a silica gel film 4; a Y-shaped protrusion 5; radioactive particles 6.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment provides a radioactive particle chain silica gel sheet device, which comprises a silica gel sheet 1, wherein a plurality of raised particle placing blocks are arranged on the surface of the silica gel sheet 1; the particle placing block comprises a silica gel shell 2 connected with the surface of the silica gel sheet 1, a radioactive particle implanting hole 3 is formed in the silica gel shell 2, and the radioactive particle implanting hole 3 is sealed by a silica gel film 4.

Further, the silica gel case 2 is a semi-cylindrical case, and the radioactive seeds implanting holes 3 are formed on a semicircular surface of the silica gel case 2.

Further, the radioactive seeds are implanted in the holes 3 located on the axis of symmetry of the semicircular plane.

Furthermore, the silicone sheet 1 is provided with a plurality of Y-shaped protrusions 5 at its edge, and can be fixed to Y-shaped protrusions 5 of other radioactive particle chain silicone sheet devices, or can be fixed to tissue.

Further, the silicone sheet 1 is a square sheet, and each corner is provided with a Y-shaped protrusion 5.

Further, the radioactive particle chain silica gel sheet device is made of medical silicon rubber. Medical silica gel is a biological material which is widely applied in the cosmetic surgery, and has various forms, such as: liquid silicone oil, jelly-like silicone, foamed silicone sponge, elastic solid silicone rubber, and the like, and solid silicone rubber is widely used. The silicone rubber belongs to one of synthetic rubbers, has a chemical name of polymethylvinylsiloxane, is formed by polymerizing dimethyl siloxane monomers and other organic silicon monomers under the action of an acid or alkali catalyst, and has a relative molecular weight of 40-50 ten thousand generally. Hardness range: 30-80 degrees (Shore A), the silicon rubber is a high molecular medical material with excellent performance, is used as a medical artificial material, has low cost and high practicability, is not easy to reject and reflect, does not have any harm to human bodies, has good biocompatibility, and does not influence the radioactive ray operation of radioactive particles. Secondly, the silicon rubber product has the good medical characteristics of no color, no toxicity, high temperature resistance, oxidation resistance, softness, transparency and the like. In addition, it has blood coagulation properties; the toxicity test result meets the medical requirements; in clinical application, the biocompatibility is good, the distortion effect and the anaphylactic reaction are avoided; the elastomer has excellent toughness and elasticity, good processing performance and various processing modes, and is a preferred material for manufacturing various medical elastomer products; has excellent wear resistance, soft touch, moisture resistance and various chemical resistance.

Further, the length of the silica gel sheet 1 is 20mm-80mm, the width is 20mm-80mm, and the thickness is 1.0 mm; the length of the semi-cylindrical shell is 6.0mm, the width of the semi-cylindrical shell is 1.5mm, the height of the semi-cylindrical shell is 1.5mm, and the radial distance between two adjacent semi-cylindrical shells is 5mm or 10 mm; the thickness of the silica gel film 4 is 0.5 mm; the dimensional tolerance is 0.1 mm.

Further, the particle placement block is pre-loaded with radioactive particles 6. To ensure the effectiveness of the radioactive particles 6, the product package should be marked with an effective lifetime.

A method for radioactive seed implantation and immobilization includes the following steps.

a. Firstly, determining the number of particles implanted in a tumor bed or a vascular surgery area and the shape and size of a silica gel sheet according to a preoperatively made particle implantation plan;

b. taking out the silica gel sheet 1, and shearing the sheet with the corresponding size according to the step a;

c. using a particle implantation device to puncture through the silica gel film 4 into the particle placement block where the particles can be placed to place the particles;

d. implanting the rolled radioactive particle chain silica gel sheet device into an operation area through a surgical instrument;

e. fixing a radioactive particle chain silica gel sheet device by using a titanium clip or a Hem-o-lok clip, and mutually connecting and fixing the radioactive particle chain silica gel sheet device through Y-shaped protrusions 5 or fixing the Y-shaped protrusions 5 and tissues;

f. the above operations are all carried out under the wearing of radioactive particle protection equipment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A radioactive particle chain silica gel sheet device is characterized by comprising a silica gel sheet, wherein the surface of the silica gel sheet is provided with a plurality of raised particle placing blocks;

the particle placing block comprises a silica gel shell connected with the surface of the silica gel sheet, a radioactive particle implanting hole is formed in the silica gel shell, and the radioactive particle implanting hole is sealed through a silica gel film.

2. The apparatus according to claim 1, wherein the silicone shell is a semi-cylindrical shell and the radioactive seeds implanting holes are located on a semi-circular surface of the silicone shell.

3. A radioactive seed chain silica gel sheet device according to claim 2, wherein the radioactive seed implanting hole is located on the axis of symmetry of the semicircular plane.

4. A device according to claim 3, wherein the edges of the silicone sheet are provided with a plurality of Y-shaped projections.

5. A radial particle chain silica gel sheet means as claimed in claim 4 wherein the silica gel sheet is a square sheet with a Y-shaped protrusion at each corner.

6. A radioactive-particle-chain silicone sheet device according to claim 5, wherein the radioactive-particle-chain silicone sheet device is made of medical silicone rubber.

7. A radioactive-particle-chain silica gel sheet device according to claim 6, wherein the silica gel sheet has a length of 20mm to 80mm, a width of 20mm to 80mm and a thickness of 1.0 mm;

the length of the semi-cylindrical shell is 6.0mm, the width of the semi-cylindrical shell is 1.5mm, the height of the semi-cylindrical shell is 1.5mm, and the radial distance between two adjacent semi-cylindrical shells is 5mm or 10 mm;

the thickness of the silica gel film is 0.5 mm;

the dimensional tolerance is 0.1 mm.

8. The apparatus according to claim 7, wherein the particle placement block is pre-loaded with radioactive particles.

9. The device of claim 8, wherein the radioactive particles are iodine-125 particles, palladium-103 particles, gold-198 particles, cesium-131 particles, ytterbium-169 particles, yttrium-90 particles, or phosphorus-32 particles.