CN212037704U

CN212037704U - Device for magnetically taking out button battery in stomach

Info

Publication number: CN212037704U
Application number: CN202020224764.XU
Authority: CN
Inventors: 吕毅; 王荣峰; 张楠; 单丽宇; 唐湘; 王凯玲; 吴荣谦
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: Chonghao Technology Co.,Ltd.
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-12-01
Anticipated expiration: 2030-02-28

Abstract

A device for magnetically taking out a button battery in an stomach comprises an internal part and an external part, wherein the internal part comprises a polyvinyl chloride pipe, the front end of the polyvinyl chloride pipe is connected with a cylindrical magnet, and the external part comprises a guide magnet; compared with the prior art, the invention has simple operation and is easy for medical staff to learn; the cost is low and the efficiency is high; can be finished without anesthesia and endoscope; and the time consumption is short. When the button cell cannot be found due to unsatisfactory multi-view of gastric contents under the endoscope, the device can replace the endoscope, the button cell in the stomach is effectively taken out, and the continuous injury time of the button cell to the gastrointestinal tract is shortened.

Description

Device for magnetically taking out button battery in stomach

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a device for magnetically taking out a button battery in an stomach.

Background

With the widespread use of coin cells in various toys, watches, and remote controls, children inadvertently swallow coin cells into the alimentary canal during play (ERLITOVITZ T, WHITAK N, CLARK L. harvesting sockets: an analysis of 8648cases [ J ] Pediatrics, 2010,125(6): 1178-1183.). Button cells are ingested by about 10 out of every million people every year, most of which are children, with one in every 1000 cells that can cause serious injury (COWAN S A, JACOBASEN P. [ Ingemiton of button batteries. epidemiology, clinical signs and therapeutic recogmentations ] [ J ]. Ugeskr Laeger,2002,164(9): 1204-1207.). Generally, the button cell is smoothly discharged from the body through the digestive tract, but for the button cell staying in the stomach, it is recommended that a patient under 5 years old should perform endoscopy and removal of a button cell exceeding 20mm within 24 to 48 hours. Endoscopic retrieval is a standard procedure (EISEN G M, Baron TH, DOMINITZ J A, et al. guiding for the management of infected for use in tissue hosts [ J ]. Gastrointest Endosc, 2002,55(7):802- & ltSUB & gt 806.; RAI M, WOO M, BECHARA R. stitching up the tab: gastroenterological locking dual to embedded broken tape clip [ J ]. Dig Endosc, 2018,30(6):804- & ltSUB & gt 805.), foreign body forceps are the most commonly used instruments, but grasping may be difficult depending on the type and shape of the foreign body. When a lithium coin cell battery is swallowed in the stomach, it secretes alkaline fluids due to electrolysis, causing ulceration of the gastrointestinal tract and sometimes resulting in perforation (SEMPLE T, CALDER A D, RAMASWAMY M, et al, button bathing initiation in children-a porous catastrophe event of which all radiology tissue, 2018,91(1081): 20160781.). The battery should be removed in a timely manner, but food debris may make it difficult to position and its smooth disk shape makes it difficult for foreign forceps to grasp. It is imperative to find a simple and effective device and method for intragastric button cell extraction.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a device for magnetically taking out a button battery in an stomach, which utilizes the inherent attraction between magnets and between magnetic materials, realizes the calling of the button battery and the magnet in the stomach through an external magnet, realizes the quick contact between the magnet in the stomach and the button battery, does not need anesthesia or an endoscope, can be applied to emergency departments, digestive system departments and pediatric outpatients of all levels of hospitals, has simple operation, can effectively take out the button battery in the stomach, shortens the continuous damage time of the button battery to the gastrointestinal tract, reduces the incidence rate of complications and improves the treatment efficiency of the button in the stomach.

In order to achieve the purpose, the invention adopts the technical scheme that:

a device for magnetically taking out a button battery in an stomach is characterized by comprising an internal part and an external part, wherein the internal part comprises a polyvinyl chloride pipe 2, the front end of the polyvinyl chloride pipe 2 is connected with a cylindrical magnet 4, and the external part comprises a guide magnet 8.

Polyvinyl chloride pipe 2's diameter is 2mm, and length is 60cm, and the outer wall has the scale, cylindrical magnet 4 is neodymium iron boron magnet, and the diameter is 8mm, and the height is 10mm, and magnetic field force radius range is 1 cm.

The guide magnet 8 is a cylindrical magnet with the diameter of 50mm and the height of 150mm, is formed by processing N50 sintered neodymium iron boron, and is provided with a surface nickel plating layer, is axially saturated and magnetized, and is externally sleeved with a resin shell with the wall thickness of 5 mm.

The attraction force of the guide magnet 8 and the magnet 4 is 30 +/-2N when the distance is 5mm, and the attraction force of the magnet 4 and the button battery 5 is 3-10N when the magnet 4 and the button battery 5 are attracted.

Compared with the prior art, the invention has simple operation and is easy for medical staff to learn; the cost is low and the efficiency is high; can be finished without anesthesia and endoscope; and the time consumption is short. When the button cell cannot be found due to unsatisfactory multi-view of gastric contents under the endoscope, the device can replace the endoscope, the button cell in the stomach is effectively taken out, and the continuous injury time of the button cell to the gastrointestinal tract is shortened.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic view of the process of use of the present invention (device in).

FIG. 3 is a schematic diagram of the procedure of the present invention (in vitro guidance).

FIG. 4 is a schematic diagram of the process of the present invention (adsorption completed).

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings and examples.

As shown in figure 1, the device for magnetically taking out the button battery in the stomach comprises an internal part and an external part, wherein the internal part comprises a polyvinyl chloride pipe 2, the front end of the polyvinyl chloride pipe 2 is connected with a cylindrical magnet 4, and the external part comprises a guide magnet 8.

The guide wire 1 penetrates into the polyvinyl chloride pipe 2, the front end of the guide wire 1 is embedded into the groove 3 at the tail end of the magnet 4, and the tail end of the guide wire extends out of the polyvinyl chloride pipe 2 and is placed outside the body when in use. The material of the guide wire 1 is nitinol which is highly flexible and durable.

Wherein, polyvinyl chloride pipe 2's diameter is 2mm, and length is 60cm, and the outer wall has the scale, and cylindrical magnet 4 is neodymium iron boron magnet, and the diameter is 8mm, and the height is 10mm, and magnetic field force radius range is 1 cm. The guide magnet 8 is a cylindrical magnet with the diameter of 50mm and the height of 150mm, is formed by processing N50 sintered neodymium iron boron, is coated with a nickel coating, is magnetized in an axial saturation mode, and is sleeved with a resin shell with the wall thickness of 5 mm. The attraction force of the guide magnet 8 and the magnet 4 is 30 +/-2N when the distance is 5mm, and the attraction force of the magnet 4 and the button battery 5 is 3-10N when the magnet 4 and the button battery 5 are attracted.

More specifically, the outer wall of the tail end of the polyvinyl chloride pipe 2 is connected with the side wall of the groove 3 by self-adhesive glue, and the front end of the guide wire 1 extends to form a convex cylindrical magnetic material with the diameter of 1.5mm and the height of 2 mm; because the polyvinyl chloride tube 2 is easy to be broken when being implanted into the esophagus, when the guide wire 1 is sleeved into the polyvinyl chloride tube 2, the magnetic material at the front end of the guide wire 1 and the bottom of the groove 3 are attracted by magnetic force, the main function of the guide wire 1 is to assist in guiding the magnet 4 into the esophagus, so that the polyvinyl chloride tube 2 is prevented from being broken when being implanted into the esophagus, namely, the guide function is achieved, and meanwhile, the powerful conduction function is also achieved.

The length of the in-vivo device is measured, the adult insertion length is 45-55 cm, and the following two measurement methods are adopted: first, the distance from the forehead hairline to the xiphoid process of the sternum; second, the distance from the tip of the nose to the earlobe and then to the xiphoid process of the sternum.

When in use, referring to fig. 2, 3 and 4, the front end of the magnet 4 is coated with paraffin oil, the in-vivo device is placed in the oral cavity under the guidance of the guide wire 1, and is inserted slightly downwards for 6-8cm, then a patient is ordered to swallow, and the lower jaw of the patient is pressed close to the sternum stem, so that the radian of the pharyngeal portion is increased. The guide wire 1 is withdrawn when the patient is swallowed, following the oesophagus 6, advances anterogradely, estimating the arrival of the in-vivo device in the stomach.

The guiding magnet 8 is close to the front of the body surface stomach, the 'non-contact' field force is the basic attribute of a magnetic substance, although the magnet 4 and the button cell 5 in the stomach are at different spatial positions in the stomach, the magnet 4 and the button cell 5 in the stomach can move towards the direction of the magnet 8 together under the attraction of the fixed and strong magnetic field force generated by the guiding magnet 8 outside the body, the magnet 4 and the button cell 5 can meet and attract each other in the moving process, the radius range of the magnetic field force of the magnet 4 is 1cm, or the magnet 4 and the button cell 5 attract each other when being attached to the front wall of the stomach; the magnet 4 and the button battery 5 can be touched between the external magnet 8 and the abdominal wall 7, and if the magnet 4 and the button battery 5 are not touched or are not clear, the guiding magnet 8 can be moved left and right to ensure that the magnet 4 and the button battery 5 meet and attract each other. And then removing the external guide magnet 8, slowly pulling the polyvinyl chloride pipe 2 at a constant speed, and removing the button cell 5 from the stomach.

Claims

1. The device for magnetically taking out the button battery in the stomach is characterized by comprising an internal part and an external part, wherein the internal part comprises a polyvinyl chloride pipe (2), the front end of the polyvinyl chloride pipe (2) is connected with a cylindrical magnet (4), and the external part comprises a guide magnet (8).

2. The device for magnetically taking out an intragastric button cell according to claim 1, wherein the polyvinyl chloride tube (2) has a diameter of 2mm, a length of 60cm, and scale marks on the outer wall, the cylindrical magnet (4) is a neodymium iron boron magnet, has a diameter of 8mm and a height of 10mm, and has a magnetic field force radius of 1 cm.

3. The device for the magnetic extraction of the button cells in the stomach according to claim 1, characterized in that the guiding magnet (8) is a cylindrical magnet with a diameter of 50mm and a height of 150mm, and is processed by sintering neodymium iron boron with N50, and the surface is nickel-plated and is axially saturated and magnetized, and the wall is sleeved with a resin shell with a thickness of 5 mm.

4. The device for the intragastric button cell magnetic extraction according to claim 1, characterized in that a guide wire (1) is inserted into the polyvinyl chloride tube (2), the leading end of the guide wire (1) being embedded in a groove (3) at the trailing end of the magnet (4).

5. Device for the intragastric button cell magnetic extraction according to claim 1, 2 or 3, characterized in that the attraction force of the guiding magnet (8) and the magnet (4) is 30 ± 2N at a distance of 5mm and the attraction force of the magnet (4) and the button cell (5) is 3-10N.