Medical X-ray contrast gauze, pads, and sponges
X-ray contrast-enhanced silicon and styrene are applied to gauzes, pads, and sponges via simple methods, addressing manufacturing complexity and safety issues, enabling easy confirmation and safe use during surgery.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KUROSU INDUSTRY CO LTD
- Filing Date
- 2024-11-11
- Publication Date
- 2026-05-21
AI Technical Summary
Existing medical gauzes, pads, and sponges that utilize X-ray contrast agents either require complex weaving processes or use inks that pose safety risks if left in the body, making them difficult to manufacture and unsafe.
X-ray contrast-enhanced silicon and styrene are applied to gauzes, pads, and sponges through simple methods like printing or padding, ensuring firm attachment and easy confirmation of their absence via X-ray imaging.
The solution allows for easy manufacturing and reliable X-ray confirmation of the absence of gauzes, pads, and sponges in the body, maintaining flexibility and safety with non-eluting materials.
Smart Images
Figure 2026084628000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to medical gauzes, pads, and sponges that are attached with X-ray contrast silicon, X-ray contrast silicone, and X-ray contrast styrene, and whose presence can be confirmed by X-rays during surgery.
[0002] The uses of medical pads and sponges are basically the same as those of medical gauzes, and they are used for protecting affected areas, skin, and internal tissues, and absorbing liquids such as blood. Mainly, there are knitted fabrics, non-woven fabrics, sponges, etc.
Background Art
[0003] During surgery, gauzes, pads, and sponges are used to protect incisions and organs, and to absorb and drain bleeding fluid and exudate. Sometimes, medical mistakes occur such as suturing with gauzes, pads, and sponges remaining in the body.
[0004] As gauzes, pads, and sponges that do not cause such a situation, Japanese Utility Model Publication No. 57-10854 discloses X-ray contrast gauzes, pads, and sponges in which threads containing an X-ray contrast agent are woven in. When using these gauzes, pads, and sponges, X-ray imaging is performed after surgery, and since there is no shadow of the threads containing the X-ray contrast agent, it can be confirmed that the gauzes, pads, and sponges do not remain in the body.
[0005] The production of these gauzes, pads, and sponges is troublesome in that threads containing an X-ray contrast agent must be prepared in advance and woven in from the weaving stage.
[0006] Furthermore, there are medical gauze, pads, and sponges printed with X-ray contrast silicon, X-ray contrast silicone, and X-ray contrast styrene, as shown in Japanese Patent Publication No. 2003-93432, but these lack safety because they use ink. In particular, the impact on the human body if gauze, pads, or sponges are left inside the body is far greater than that of X-ray contrast silicon, X-ray contrast silicone, and X-ray contrast styrene. Problems that the invention aims to solve
[0007] The present invention was made to solve the aforementioned problems, and aims to provide medical X-ray contrast gauze, pads, and sponges that can be easily manufactured and whose absence in the body can be reliably confirmed by X-rays. Means for solving the problems
[0008] To achieve the aforementioned objectives, the X-ray contrast-enhanced silicon, X-ray contrast-enhanced silicone, and X-ray contrast-enhanced styrene of the present invention contain an X-ray contrast agent such as silicon, silicone, or barium sulfate.
[0009] The medical X-ray contrast gauze, pad, and sponge of the present invention have the aforementioned X-ray contrast silicone and X-ray contrast styrene attached to the gauze, pad, and sponge. The X-ray contrast silicone and X-ray contrast styrene are firmly attached to the gauze, pad, and sponge by permeating and clinging to the threads of the gauze, pad, and sponge through simple operations such as printing or padding. The thickness is preferably between 0.01 mm and 3 mm.
[0010] Furthermore, because X-ray contrast-enhanced silicone and X-ray contrast-enhanced styrene are resins, heat treatment may be performed to strengthen their adhesion to gauze, pads, and sponges, and to cure them. The temperature is between 40°C and 200°C.
[0011] Preferably, the gauze, pads, and sponges contain 15% by weight or more of X-ray contrast agent in the X-ray contrast-enhanced silicone and X-ray contrast-enhanced styrene. If the amount is less, clear shadows of the X-ray contrast-enhanced silicone and X-ray contrast-enhanced styrene cannot be obtained when the gauze, pads, and sponges are X-rayed. Furthermore, considering the roughness and hardness of the surface, it is desirable that the X-ray contrast agent content be 95% or less.
[0012] X-ray contrast-enhanced silicone and X-ray contrast-enhanced styrene may be colored. For example, food coloring or pigments may be mixed into the silicone or styrene to add color. X-ray contrast-enhanced silicone and X-ray contrast-enhanced styrene may also be colored with blue or green dyes that do not leach into the human body so that gauze, pads, and sponges that have absorbed blood or other fluids are easily visible.
[0013] X-ray contrast gauze, pads, and sponges are manufactured as follows: For example, when X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene are applied to a portion of the surface of a woven, knitted, nonwoven, or sponge made of cotton, rayon, or cupro, X-ray contrast gauze, pads, and sponges are obtained.
[0014] X-ray contrast gauze, pads, and sponges may be obtained by linearly attaching X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene along the edges of the gauze, pads, and sponges, as shown in Figure 1. Multiple lines of X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene may be attached. Alternatively, as shown in Figure 2, they may be attached in a polka-dot pattern. When X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene are attached linearly or in a polka-dot pattern over a wide area of the gauze, pads, and sponges, the X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene will appear as clear shadows during X-ray imaging in surgery, thus ensuring that the presence of the gauze, pads, and sponges can be reliably confirmed. Alternatively, threads may be sewn to the gauze or X-ray contrast threads may be sewn to allow it to be grasped with tweezers, as shown in Figure 3.
[0015] X-ray contrast gauze, pads, and sponges have X-ray contrast silicone and X-ray contrast styrene printed on only a small portion of their surface, thus retaining the inherent flexibility and blood absorption properties of gauze, pads, and sponges.
[0016] Furthermore, since X-ray contrast-enhanced silicon, X-ray contrast-enhanced silicone, and X-ray contrast-enhanced styrene can be made into a gel, they can retain their original flexibility even when applied to a surface.
[0017] It is preferable that X-ray contrast gauze, pads, and sponges be sterilized by autoclaving or EOG sterilization. Furthermore, since X-ray contrast silicone and X-ray contrast styrene are non-eluting to the human body, medical X-ray contrast gauze, pads, and sponges to which these X-ray contrast silicones and X-ray contrast styrenes are attached are hygienic and highly safe.
[0018] This medical X-ray contrast gauze, pad, and sponge are inserted into the body through the incision during surgery to absorb and protect against blood and other fluids, and then removed. The incision is sutured after visual confirmation that no X-ray contrast silicone, X-ray contrast silicone, or X-ray contrast styrene shadows are visible on the gauze, pad, and sponge by X-ray fluoroscopy or radiography. The absence of any remaining X-ray contrast gauze, pad, and sponge in the body can be reconfirmed by the absence of X-ray contrast silicone, X-ray contrast silicone, or X-ray contrast styrene shadows when radiography is performed after surgery. [Examples]
[0019] The following describes in detail embodiments of the medical X-ray contrast gauze, pad, and sponge of the present invention.
[0020] Medical X-ray contrast gauze, pads, and sponges were prototyped as follows.
[0021] Medical-grade silicone resin was mixed with medical-grade barium sulfate as an X-ray contrast agent and thoroughly mixed to obtain X-ray contrast silicone.
[0022] As shown in Figure 2, which illustrates examples of X-ray contrast gauze, pads, and sponges, prototypes were created by attaching them in a polka-dot pattern.
[0023] When X-rays were taken of this gauze, pad, and sponge at a medical institution, the shadows of the X-ray contrast silicone were clearly visible. This result clearly demonstrates that even if this gauze, pad, and sponge remain in the body after surgery, the shadows of the X-ray contrast silicone can be clearly obtained through X-ray imaging. Effect of the Invention
[0024] As described in detail above, the medical X-ray contrast gauze, pad, and sponge of the present invention can be easily manufactured by attaching a resin containing an X-ray contrast agent. Therefore, the productivity of this gauze, pad, and sponge is high.
[0025] The medical X-ray contrast gauze, pad, and sponge are used for absorbing and protecting bleeding fluid and exudate by being inserted into the body during surgery. They are flexible and have excellent absorbency for bleeding fluid and the like.
[0026] When using this gauze, pad, and sponge, it is possible to reliably confirm that there is no residue in the body by X-ray imaging immediately before suturing or after surgery. This X-ray contrast gauze, pad, and sponge have X-ray contrast silicon, X-ray contrast silicone, and X-ray contrast styrene firmly attached to the surface, and since the X-ray contrast silicon, X-ray contrast silicone, and X-ray contrast styrene are non-eluting to the human body, they are hygienic and highly safe.
Brief Description of the Drawings
Explanation of Reference Numerals
Claims
1. X-ray contrast-enhanced silicon, X-ray contrast-enhanced silicone, and X-ray contrast-enhanced styrene, characterized by containing barium sulfate as an X-ray contrast agent.
2. Medical X-ray contrast gauze, pad, and sponge characterized by having X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene attached to them, as described in claim 1.
3. The medical X-ray contrast gauze, pad, and sponge according to claim 2, characterized in that the X-ray contrast silicone, X-ray contrast silicone, and X-ray contrast styrene contain 15 to 95% by weight of an X-ray contrast agent.