A foreign object removal device

By using a foreign body removal device with a malleable support and a flexible wrapping band, the compatibility and damage problems of existing rectal foreign body removal devices are solved, achieving a low-trauma and safe foreign body removal effect.

CN122297052APending Publication Date: 2026-06-30高洪亮
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
高洪亮
Filing Date
2026-05-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing rectal foreign body removal devices suffer from problems such as poor compatibility with rigid instruments, easy slippage during clamping, easy damage to the mucosa, and easy pushing of foreign bodies, resulting in large surgical trauma, high costs, and many complications.

Method used

It adopts a combination of a malleable support component and a flexible wrapping band. The support component is a bendable medical elastic metal ring, and the flexible wrapping band is used to wrap foreign objects. The support component is adapted to the physiological curvature of the rectum, and the wrapping band increases the contact area and friction to avoid slippage and damage.

Benefits of technology

It achieves low-damage, safe and efficient foreign body removal, reduces surgical trauma and complications, lowers medical costs, and is applicable to various types of rectal foreign bodies.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a foreign body removal device, belonging to the field of medical auxiliary device technology. The device includes a malleable support, a connecting rod, and a flexible wrapping band. One end of the connecting rod is connected to the malleable support, and the other end has a handle ring. The malleable support is made of medical-grade stainless steel or titanium alloy closed elastic metal ring, which can be bent and shaped while maintaining its form. Its surface is smooth and polished, the ends are rounded, and it is coated with a hydrophilic coating. The flexible wrapping band is made of medical-grade sterile degreased cotton cloth or non-woven fabric, fixed to the outer periphery of the support and featuring anti-slip texture. In use, the support adapts to the physiological curvature of the rectum to bypass the foreign body, guiding the flexible wrapping band to completely wrap the foreign body. It can then be safely expelled by pulling with the handle. This invention has advantages such as strong adaptability, stable clamping, minimal mucosal damage, and simple operation. It is suitable for minimally invasive removal of various rectal foreign bodies such as plastic, glass, silicone, and fruit pits, reducing surgical trauma and the risk of complications.
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Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and more specifically, to a foreign body removal device. Background Technology

[0002] In recent years, the number of clinical cases of rectal foreign body retention has been increasing year by year. The types of foreign bodies include plastic (plastic bottles, toys), glass (glass bottles, glass marbles), metal (keys, metal rods), silicone (adult products), and fruit pits (date pits, peach pits), etc. The reasons for retention include accidental swallowing and self-insertion. If foreign bodies are not removed in a timely and safe manner, it can lead to serious complications such as rectal mucosal tears, massive bleeding, rectal perforation, acute peritonitis, pelvic infection, etc., and may even endanger the patient's life.

[0003] Currently, the removal of rectal foreign bodies mainly relies on surgical or endoscopic techniques. Surgical removal often requires opening the abdomen or rectum, resulting in significant trauma and slow recovery. Endoscopic techniques involve inserting a rectal endoscope and using forceps for removal; however, for larger, harder, or smooth-surfaced foreign bodies, conventional forceps lack sufficient gripping force and have a small contact area, making them prone to slippage. Furthermore, during grasping, the foreign body is easily pushed deeper into the rectum, even into the sigmoid colon, leading to minimally invasive removal failure and necessitating open surgery, significantly increasing patient trauma and medical costs. Existing instruments are mostly rigid structures, unable to accommodate the sacral and perineal curves of the rectum. Insertion and manipulation can easily cause mechanical friction damage to the rectal mucosa, increasing patient pain and infection risks. Therefore, current techniques still cannot meet the complex and diverse clinical needs for foreign body removal. To address this, we propose a rectal foreign body removal device. Summary of the Invention

[0004] The purpose of this invention is to provide a malleable, encapsulated, and low-damage rectal foreign body removal device, which solves the problems of poor compatibility, easy slippage during clamping, easy damage to the mucosa, and easy pushing of foreign bodies by rigid instruments.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a foreign body removal device, comprising a malleable support, a connecting rod, and a flexible wrapping band; one end of the connecting rod is connected to the malleable support, and the other end is provided with a handle ring; the malleable support is a flexible medical metal ring that can be bent and shaped; the flexible wrapping band is disposed on the outer peripheral surface of the malleable support; the malleable support is used to bypass the foreign body in the rectum and guide the flexible wrapping band to wrap the foreign body; the flexible wrapping band is used to pull the foreign body out of the body.

[0006] The present invention is further configured such that the plastic support is a closed ring structure made of medical stainless steel or titanium alloy, which has the ability to maintain its plastic shape after bending.

[0007] The present invention is further configured such that the diameter of the plastic support is 20–80 mm and the wire diameter is 0.5–3 mm.

[0008] The present invention is further configured such that: the flexible wrapping strip is a medical sterile flexible cloth strip, and the material is selected from medical degreased cotton cloth or medical non-woven fabric.

[0009] The present invention is further configured such that the width of the flexible wrapping strip is 10–50 mm and the length is 50–300 mm.

[0010] The invention is further configured such that the flexible wrapping tape is fixed to the outside of the plastic support by means of sewing, medical bonding or hot pressing.

[0011] The invention is further configured such that the surface of the flexible wrapping tape is provided with anti-slip texture to increase the contact friction with foreign objects and prevent slippage when pulled.

[0012] The present invention is further configured such that: the outer surface of the plastic support is a smooth polished surface, and the annular end of the plastic support is configured as a smooth, edgeless structure.

[0013] The invention is further configured such that the malleable support can be adapted to the physiological curvature of the rectum, such as the sacral curve and perineal curve, and there is no rigid friction during the insertion process.

[0014] The present invention is further configured such that the surface of the plastic support is coated with a smooth hydrophilic coating.

[0015] In summary, the present invention has the following beneficial effects:

[0016] The malleable support can be bent and shaped to perfectly fit the physiological curvature of the rectum and perineum, avoiding rigid injury; the flexible wrapping band covers a large area to wrap the foreign body, and with anti-slip texture, the smooth foreign body will not slip, eliminating the need for clamps or pushing the foreign body; the smooth, edgeless structure, hydrophilic coating, and flexible material protect the rectal mucosa throughout the process, reducing the risk of bleeding, perforation, and infection; the handle ring is intuitive to operate, eliminating the need for complex endoscopy, and can quickly complete the wrapping and traction removal of foreign bodies, shortening operation time and reducing patient trauma and medical costs; it is suitable for the removal of various rectal foreign bodies such as plastic, glass, metal, silicone, and fruit pits, meeting the needs of complex clinical cases. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the foreign object removal device in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the foreign object removal device in an embodiment of the present invention.

[0019] In the diagram: 1. Flexible support; 2. Connecting rod; 3. Handle ring; 4. Flexible wrapping band; 5. Rectal foreign body. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0021] Example: A foreign object removal device, such as Figures 1-2 As shown, it includes a malleable support 1, a connecting rod 2, and a flexible wrapping band 4; one end of the connecting rod 2 is connected to the malleable support 1, and the other end is provided with a handle ring 3; the malleable support 1 is a medical elastic metal ring that can be bent and shaped, and the flexible wrapping band 4 is provided on the outer peripheral surface of the malleable support 1. The malleable support 1 is used to bypass foreign objects in the rectum and guide the flexible wrapping band 4 to wrap the foreign objects, and the flexible wrapping band 4 is used to pull the foreign objects out of the body.

[0022] By adopting the above technical solution, the malleable support 1 can be freely bent and shaped according to the physiological curvature of the rectum and the shape of the foreign object, smoothly bypassing the foreign object and forming a stable support, avoiding the rigid structure from pushing the foreign object or damaging the mucosa; the flexible wrapping band 4 fits and wraps the foreign object with the support, increasing the contact area and friction, replacing the traditional clamping, solving the problem of easy slippage of smooth foreign objects from the root, and realizing safe and efficient foreign object traction and removal.

[0023] The invention is further configured such that: the malleable support 1 is a closed ring structure made of medical stainless steel or titanium alloy, which has the ability to maintain its plastic shape after bending.

[0024] By adopting the above technical solutions, medical stainless steel and titanium alloy have good biocompatibility and are non-allergenic, meeting the standards for medical implant-grade materials; the closed ring structure has uniform overall strength, can stably maintain the preset shape after bending, and does not spring back or deform during operation, providing continuous and reliable support for the wrapping tape.

[0025] The present invention is further configured such that the diameter of the plastic support 1 is 20–80 mm and the wire diameter is 0.5–3 mm.

[0026] By adopting the above technical solution, the diameter of 15–30 mm is suitable for the size of common rectal foreign bodies in clinical practice, and can be smoothly inserted into the rectum and surround the foreign body; the wire diameter of 0.5–3 mm takes into account both flexibility and support strength, which is easy to bend and shape, and can withstand the pulling force of pulling the foreign body, avoiding deformation and breakage.

[0027] The invention is further configured such that: the flexible wrapping strip 4 is a medical sterile flexible cloth strip, and the material is selected from medical degreased cotton cloth or medical non-woven fabric.

[0028] By adopting the above technical solutions, medical degreased cotton cloth and non-woven fabric are soft, skin-friendly and non-irritating. After sterilization, they can directly contact the rectal mucosa to avoid secondary infection. The flexible material can completely fit the surface of the foreign object without scratching it or damaging the intestinal wall.

[0029] The present invention is further configured such that the width of the flexible wrapping strip 4 is 10–50 mm and the length is 50–300 mm.

[0030] By adopting the above technical solution, a width of 10–50 mm can provide sufficient wrapping area to accommodate foreign objects of different sizes; a length of 50–300 mm meets the wrapping and pulling needs of foreign objects of different depths, and the length is sufficient and easy to operate.

[0031] The invention is further configured such that the flexible wrapping band 4 is fixed to the outside of the malleable support member 1 by means of sewing, medical adhesive, or hot pressing.

[0032] By adopting the above technical solutions, suturing, medical adhesives, and heat pressing are all strong and reliable fixation methods. The wrapping tape and support are tightly connected and will not fall off or shift during traction, ensuring operational stability.

[0033] The invention is further configured such that the surface of the flexible wrapping tape 4 is provided with anti-slip texture to increase the contact friction with foreign objects and prevent slippage when pulled.

[0034] By adopting the above technical solution, the anti-slip texture can significantly improve the friction coefficient between the wrapping tape and foreign objects. It can still stably hold smooth foreign objects such as glass and silicone, and prevent foreign objects from slipping or shifting during the pulling process.

[0035] The invention is further configured such that: the outer surface of the plastic support 1 is a smooth polished surface, and the annular end of the plastic support 1 is configured as a smooth, rounded structure without sharp edges.

[0036] By adopting the above technical solutions, the smooth polished surface reduces frictional resistance during insertion, and the rounded, edgeless end can avoid scratching the rectal mucosa, protecting intestinal tissue throughout the process and reducing patient pain and the risk of complications.

[0037] The invention is further configured such that: the malleable support 1 can be adapted to the physiological curvature of the rectum, such as the sacral curve and perineal curve, and there is no rigid friction during the insertion process.

[0038] By adopting the above technical solution, the support can bend adaptively with the physiological curvature of the rectum, conform to the course of the intestine, without rigid impact or friction, ensuring smooth insertion and high patient comfort, and is suitable for patients of different body types and intestinal shapes.

[0039] The present invention is further configured such that the surface of the plastic support member 1 is coated with a smooth hydrophilic coating.

[0040] By adopting the above technical solution, the hydrophilic coating becomes highly lubricated upon contact with body fluids, further reducing insertion resistance, minimizing mucosal irritation, and improving operational smoothness and safety.

[0041] A foreign body removal device includes a malleable support 1, a connecting rod 2, and a flexible wrapping band 4; one end of the connecting rod 2 is fixedly connected to the malleable support 1, and the other end is provided with a handle ring 3; the malleable support 1 is a closed elastic metal ring made of medical stainless steel or titanium alloy, with a diameter of 20–80 mm and a wire diameter of 0.5–3 mm, a smooth and polished outer surface and rounded ends, and a hydrophilic coating on the surface; the flexible wrapping band 4 is a medical sterile degreased cotton cloth or non-woven fabric, with a width of 10–50 mm and a length of 50–300 mm, and is fixed to the outside of the malleable support 1 by suturing, medical adhesive, or hot pressing, and has an anti-slip texture on the surface.

[0042] Working principle: Before use, the device is sterilized. The doctor holds the handle ring 3 and slowly inserts the malleable support 1 along the physiological curvature of the rectum. The support 1 adapts to the sacral and perineal curvature and smoothly reaches the position of the foreign body. The malleable support 1 is then wrapped around the rectal foreign body 5, and the bending angle is slightly adjusted according to the shape of the foreign body so that the flexible wrapping band 4 completely wraps the surface of the foreign body. After confirming that the wrapping is secure, the device is slowly pulled outward by the handle ring 3 and the connecting rod 2. The flexible wrapping band 4 carries the foreign body smoothly out of the rectum. There is no mucosal damage, no foreign body slippage, and no deep pushing of the foreign body throughout the process, and the removal is completed safely.

[0043] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A foreign object removal device, characterized in that, It includes a malleable support (1), a connecting rod (2), and a flexible wrapping band (4); one end of the connecting rod (2) is connected to the malleable support (1), and the other end is provided with a handle ring (3); the malleable support (1) is a medical elastic metal ring that can be bent and shaped; the flexible wrapping band (4) is provided on the outer circumferential surface of the malleable support (1); the malleable support (1) is used to bypass foreign objects in the rectum and guide the flexible wrapping band (4) to wrap the foreign objects; the flexible wrapping band (4) is used to pull the foreign objects out of the body.

2. The foreign object removal device according to claim 1, characterized in that, The plastic support (1) is a closed ring structure made of medical stainless steel or titanium alloy, which has the ability to maintain its plastic shape after bending.

3. The foreign object removal device according to claim 2, characterized in that, The diameter of the plastic support (1) is 20–80 mm and the wire diameter is 0.5–3 mm.

4. The foreign object removal device according to claim 1, characterized in that, The flexible wrapping strip (4) is a medical sterile flexible cloth strip, made of medical degreased cotton cloth or medical non-woven fabric.

5. A foreign object removal device according to claim 4, characterized in that, The width of the flexible wrapping strip (4) is 10–50 mm and the length is 50–300 mm.

6. A foreign object removal device according to claim 4, characterized in that, The flexible wrapping tape (4) is fixed to the outside of the plastic support (1) by stitching, medical adhesive or hot pressing.

7. A foreign object removal device according to claim 4, characterized in that, The surface of the flexible wrapping tape (4) is provided with anti-slip texture to increase the contact friction with foreign objects and prevent slippage when pulled.

8. A foreign object removal device according to claim 2, characterized in that, The outer surface of the plastic support (1) is a smooth polished surface, and the annular end of the plastic support (1) is set as a smooth, edgeless structure.

9. A foreign object removal device according to claim 8, characterized in that, The malleable support (1) can be adapted to the physiological curvature of the rectum, such as the sacral curve and perineal curve, and there is no friction from steel instruments during the insertion process.

10. A foreign object removal device according to claim 8, characterized in that, The surface of the plastic support (1) is coated with a smooth hydrophilic coating.