CN219680579U - Traction device and capsule endoscope - Google Patents

Abstract

The utility model discloses a traction device, which comprises a positive-negative pressure device, a luer connector and a separable traction wire, wherein the separable traction wire further comprises a silica gel sucker, a silica gel tube and a conical head which are sequentially connected, the separable traction wire is the silica gel tube, the Shore hardness of the separable traction wire is 40-60 degrees, the inner surface area of the silica gel sucker is divided into a frosted surface and a polished surface, the frosted surface area is arranged on one side of the inner side wall of the silica gel sucker, which is close to the tail end of the silica gel sucker, and the polished surface area is arranged adjacent to the frosted area.

Description

Traction device and capsule endoscope

Technical Field

The utility model relates to the field of medical instruments, in particular to a traction device and a capsule endoscope thereof.

Background

In the field of capsule endoscope auxiliary examination, the current examination of the esophagus is difficult, because the special structure of the esophagus is mainly adopted, the residence time of the capsule endoscope after entering the esophagus is very short, and valuable images are difficult to capture.

The utility model provides a pull-type capsule endoscope appears in the market, utilize silica gel sucking disc and haulage rope to carry out capsule endoscope's running speed control in current capsule endoscope one end, this kind of silica gel sucking disc adopts plain noodles structure cooperation capsule endoscope's tip, because both assembly faces are the plain noodles, when the assembly, just be adsorbed at the tip of capsule endoscope when the silica gel sucking disc has not assembled in place, the assembly process causes a great deal of technological defect, including the assembly is in place, sucking disc gas leakage can't be discharged, the appeal is not enough drops etc. even need adsorb and release capsule endoscope with the help of the air pump in the clinical examination in-process, bring great inconvenience for the testee.

The Chinese patent application No. 201410152601.4 discloses a flexible wire traction type capsule endoscope and a manufacturing method thereof, wherein the capsule endoscope mainly comprises a capsule endoscope which is accommodated in a bag-shaped body and is led out of a traction flexible wire, the manufacturing method comprises the steps of die integration, film pasting protection, attachment, shaping, assembly and wire sealing.

Chinese patent application number 201210300476.8 provides a releasable and controllable fine line pipe capsule esophagus endoscope, including cylinder, fine line pipe, vacuum chuck and capsule endoscope, fine line pipe one end wherein is connected with the cylinder, and the other end is connected with vacuum chuck, and this technical scheme passes through fine line pipe and vacuum chuck and controls the speed that the capsule endoscope passed through the esophagus to can freely control the observation angle of capsule endoscope.

Based on the deficiency of the prior art, in order to provide enough suction for the capsule endoscope, the external diameter of the silica gel sucker is increased, the wall thickness is increased or the adsorption force is improved by means of a dual-purpose air pump, and the external diameter and the wall thickness of the silica gel sucker often bring new problems of swallowing, difficult operation, difficult carrying and the like to the inspected.

Therefore, it is necessary to develop a traction type capsule endoscope which can greatly improve the inspection speed and the disease inspection rate, is suitable for special structures of esophagus, has simple structure and low cost, is convenient to use, and is a health Chinese assistance.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a traction device and a capsule endoscope.

In a first aspect, the utility model provides a traction device, which comprises a positive-negative pressure device, a luer connector and a separable traction wire, wherein the separable traction wire further comprises a silica gel sucker, a silica gel tube and a conical head which are sequentially connected, an inner surface area of the silica gel sucker is divided into a frosted surface and a polished surface, the frosted surface area is arranged on one side of the inner side wall of the silica gel sucker, which is close to the tail end of the silica gel sucker, the polished surface area is arranged adjacent to the frosted surface area, the roughness of the frosted surface is Ra0.6-3.2 um, and the ratio of the length L1 of the frosted surface area to the length L2 of the polished surface area is 0.5 < L1/L2 < 3.

Further, the separable traction wire is a silica gel tube, and the Shore hardness of the separable traction wire is 40-60 degrees.

Further, the three parts of the silica gel sucker, the silica gel tube and the conical head of the separable traction wire are integrally formed.

Further, the silica gel tube is a hollow tube with an outer diameter of 1.0-1.5 mm and an inner diameter of 0.5-1.0 mm.

Further, silk screen graduations are arranged on the surface of the silica gel tube, the graduations take the silica gel sucker as dots, the initial graduations are defined at the position 150 mm-200 mm away from the silica gel sucker, and the graduations are any one of strip-shaped rings and dots.

Furthermore, the positive and negative pressure device is provided with an inner cavity channel, the inner cavity channel is further provided with an opening and closing valve, and the positive and negative pressure device is also provided with a mechanism for enabling the pressure of the inner cavity channel to be increased or decreased.

Further, the mechanism is either a piston compression lumen or a soft compressible balloon.

Further, the outer surface of the detachable traction wire is coated with a hydrophilic coating.

Further, the traction device is connected with the capsule endoscope, the single-side wall thickness is 0.20mm-0.35mm, and the assembly interference between the silica gel sucker and the capsule endoscope is 0.2mm-0.35mm.

In a second aspect, the present utility model provides a capsule endoscope controlled using the traction device according to any one of the first aspects.

The utility model controls the speed of the capsule endoscope passing through the esophagus through the detachable traction wire, the silica gel sucker and the frosted surface and the light surface of the inner wall of the silica gel sucker, and can freely control the observation angle of the capsule endoscope, thereby overcoming the defects of short stay time of the capsule endoscope in the esophagus, low omission ratio, single observation angle, complex assembly, difficult decomposition and the like, having simple structure, low cost and convenient use, effectively improving the inspection speed and the disease inspection rate, enhancing the competitiveness of products, solving the practical problems of insufficient doctors in basic hospitals, lack of equipment, difficult development of digestive endoscope work and the like, and greatly reducing the cost of the endoscope inspection of patients with digestive tract diseases.

Drawings

Fig. 1: the traction type capsule endoscope system of the utility model is composed in a schematic diagram.

Fig. 2: the traction device of the utility model is schematically shown.

Fig. 3: a schematic of the silk-screen engraving of the detachable traction wire.

Fig. 4: the structure of the silica gel sucker is schematically shown.

Fig. 5: schematic of a pull wire adsorption capsule endoscope.

Fig. 6: the pull wire is disconnected from the schematic view of the capsule endoscope.

Each serial number and corresponding name are respectively: the device comprises a positive-negative pressure device 1, a luer connector 2, a detachable traction wire 3, a capsule endoscope 4, a silica gel sucker 3a, a silica gel tube 3b, a conical head 3c, a frosted surface 301, a smooth surface 302, an adsorption force F1, a negative pressure F2, a gravity force F3, an expansion force F4 and a separation force F5.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, the traction type capsule endoscope system of the utility model is a schematic diagram, and comprises a positive-negative pressure device 1, a luer connector 2, a separable traction wire 3 and a capsule endoscope 4, wherein the separable traction wire 3 is a nontoxic, soft and stable-performance food-grade silicone tube, the shore hardness of the separable traction wire is 40-60 degrees, further referring to fig. 2, the traction device of the utility model is a schematic diagram, the separable traction wire 3 is formed by sequentially connecting a silicone sucker 3a, a silicone tube 3b and a conical head 3c, and can also be directly formed integrally, wherein the conical head 3c is further connected with a syringe of the positive-negative pressure device 1 after the luer connector 2 is assembled, the silicone tube 3b is a hollow tube with an outer diameter of 1.0-1.5 mm and an inner diameter of 0.5-1.0 mm, and two ends of the silicone tube are respectively connected with the conical head 3c and the silicone sucker 3a.

Referring to fig. 3, a screen printing scale of the detachable traction wire of the utility model is further shown, the surface of the silicone tube 3b is provided with screen printing scales, the scales take the silicone sucker 3a as dots, the initial scales are defined at the position 150-200 mm away from the silicone sucker 3a, the scales can be in the shape of strip-shaped rings, dots and the like, a group of scales are arranged at intervals, each group of scales can be provided with different numbers of strip-shaped rings or dots to represent different lengths, or different colors and the like to represent different lengths.

Furthermore, the positive and negative pressure device 1 is provided with an inner cavity channel, the inner cavity channel is provided with an opening and closing valve, and the positive and negative pressure device 1 is also provided with a mechanism for making the pressure of the inner cavity channel larger or smaller, specifically, for example, a piston compresses the inner cavity channel, a soft compressible balloon and the like.

Further, the outer surface of the detachable traction wire 3 is coated with a hydrophilic coating, so that the traction wire moves more smoothly in the esophagus.

The capsule endoscope mainly comprises an image pickup part and a magnetic head control part, wherein the magnetic head control part is arranged at the tail end of the capsule endoscope, which belongs to the conventional arrangement of the person skilled in the art, and the utility model is not repeated here.

In particular, the inner diameter dimension of the silica gel sucker 3a is 11.5mm, the unilateral wall thickness is 0.20mm-0.35mm, the outer diameter of the capsule endoscope 4 is 12mm, therefore, the silica gel sucker 3a and the capsule endoscope 4 generate interference fit, the interference is 0.2mm-0.35mm, the inner surface area of the silica gel sucker 3a is further divided into a frosted surface 301 and a smooth surface 302, the frosted surface area is arranged on one side of the inner side wall close to the tail end of the silica gel sucker 3a, the smooth surface area is adjacent to the frosted area, the roughness of the frosted surface is Ra0.6-3.2 um, the ratio of the length L1 of the frosted area to the length L2 of the smooth surface area is 0.5 < L1/L2 < 3, the frosted surface 301 adsorbs the outer surface of the capsule endoscope 4, the frosted surface 301 is more easily separated from the capsule endoscope 4 after the silica gel sucker 3a is inflated, the smooth surface 302 adsorbs the other capsule endoscope surface, and enough adsorption force is generated, and therefore, the capsule endoscope 4 and the silica gel sucker 3a generate enough contact surface and adsorption force.

Referring to fig. 4, the schematic diagram of the structure of the silica gel sucker of the present utility model and the schematic diagram of the adsorption capsule endoscope of the traction wire of fig. 5 are further referred to, when examining the alimentary canal, firstly, the opening and closing valve of the positive and negative pressure device 1 is opened, the silica gel sucker 3a of the separable traction wire 3 is connected to the tail of the capsule endoscope 4 in a sealing way, then, the opening and closing valve of the positive and negative pressure device 1 is closed, because the silica gel sucker 3a is provided with a frosted area and a smooth surface area, when the silica gel sucker 3a is connected with the tail of the capsule endoscope, the frosted area is firstly contacted with the tail of the capsule endoscope, the friction force between the frosted area and the smooth surface of the capsule endoscope is small, the silica gel sucker 3a is conveniently and smoothly sleeved with the tail of the capsule endoscope, the smooth surface area of the silica gel sucker 3a further slides towards the lens side of the capsule endoscope 4 to form a certain length of the smooth surface of the capsule endoscope, thus, the capsule endoscope tail of the capsule endoscope, the inner cavity of the silica gel endoscope 3b and the positive and negative pressure device 1 form a sealing cavity together, the capsule endoscope are firmly adsorbed by the silica gel endoscope, and the capsule endoscope enters the esophagus through the swallow capsule endoscope, the capsule endoscope of the present utility model, the doctor can easily control the separable wire 3 is further slid towards the lens side of the lens, and the capsule endoscope is moved in the intended capsule endoscope according to the expected speed, and the desired lesion structure of the capsule endoscope is examined.

Specifically, the silica gel sucker 3a of the detachable traction wire 3 is sleeved into the tail of the capsule endoscope 4, at this time, the light surface 302 of the inner wall of the silica gel sucker 3a and the smooth outer wall of the tail of the capsule endoscope 4 generate adsorption force F1, the light surface 302 is clung to the outer surface of the capsule endoscope, vacuum is formed in the cavity inside the silica gel sucker 3a to generate upward negative pressure F2, the capsule endoscope 4 generates vertical downward gravity F3, the size of the capsule endoscope 4 is small and the weight is light, the adsorption force F1 is far greater than the gravity F3 of the capsule endoscope, at this time, the detachable traction wire 3 and the capsule endoscope 4 are sent into the oral cavity of a subject together, an operator pulls one end of the conical head 3c of the detachable traction wire 3 outside the body, gradually releases the detachable traction wire 3 to enable the capsule endoscope 4 to slowly pass through the esophagus to examine the digestive tract part, and the defects of short residence time of the capsule endoscope 4 in the esophagus, high omission ratio and single observation angle are overcome.

With further reference to fig. 6, when the esophagus is completely inspected, the operator connects the luer connector 2 on the conical head 3c at the other end of the detachable hauling wire 3 with the syringe of the positive and negative pressure device 1, and pushes the piston of the syringe 1 downwards, the internal cavity in the silica gel sucker 3a is in an inflated state, the pressure is increased, the expansion force F4 generated by the inner wall of the silica gel sucker 3a is greater than the external pressure, the frosted surface 301 of the inner wall of the silica gel sucker 3a and the light surface 302 of the capsule endoscope 4 generate a separation force F5, and the capsule endoscope 4 moves downwards under the action of the air flow and the gravity force F3 into the next digestive tract of the human body until the outside is excluded.

The utility model controls the speed of the capsule endoscope passing through the esophagus through the detachable traction wire 3, the silica gel sucker 3a and the frosting surface and the light surface of the inner wall of the silica gel sucker, and can freely control the observation angle of the capsule endoscope, thereby overcoming the defects of short stay time of the capsule endoscope in the esophagus, low omission ratio, single observation angle, complex assembly, difficult decomposition and the like, having simple structure, low cost and convenient use, effectively improving the inspection speed and disease inspection rate, enhancing the competitiveness of products, solving the practical problems of insufficient doctors in basic hospitals, lack of equipment, difficult development of digestive endoscope work and the like, and greatly reducing the cost of the endoscope inspection of patients with digestive tract diseases.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a draw gear, its characterized in that, includes positive negative pressure device, luer, separable pull wire is further including silica gel sucking disc, silicone tube and the conical head that connects gradually, silica gel sucking disc's interior surface region cuts apart into frosting and plain noodles, frosting region sets up in silica gel sucking disc's inside wall and is close to silica gel sucking disc's terminal one side, and plain noodles region and the adjacent setting of frosting region, the roughness of frosting is Ra0.6 ~ 3.2um, the length L1 in frosting region and the length L2 in plain noodles region's proportion 0.5 < L1/L2 < 3.

2. The traction device of claim 1, wherein the detachable traction wire is a silicone tube having a shore hardness of 40 ° -60 °.

3. The traction device of claim 1, wherein the three parts of the silicone suction cup, the silicone tube and the conical head of the detachable traction wire are integrally formed.

4. The traction apparatus as claimed in claim 1, wherein the silicone tube is a hollow tube having an outer diameter of 1.0-1.5 mm and an inner diameter of 0.5-1.0 mm.

5. The traction device according to claim 1, wherein silk-screen graduations are arranged on the surface of the silica gel tube, the graduations take a silica gel sucker as dots, the initial graduations are defined at a position 150 mm-200 mm away from the silica gel sucker, and the graduations are any one of strip-shaped rings and dots.

6. The traction device of claim 1, wherein the positive and negative pressure devices are provided with an inner channel, the inner channel is further provided with an opening and closing valve, and the positive and negative pressure devices are further provided with a mechanism for making the pressure of the inner channel larger or smaller.

7. The traction device of claim 6, wherein the mechanism is any one of a piston compression lumen or a soft compressible balloon.

8. The traction device of claim 1, wherein an outer surface of the detachable traction wire is coated with a hydrophilic coating.

9. The traction device according to claim 1, wherein the traction device is connected with the capsule endoscope, the unilateral wall thickness of the silica gel sucker is 0.20mm-0.35mm, and the assembly interference of the silica gel sucker and the capsule endoscope is 0.2mm-0.35mm.

10. A capsule endoscope, characterized in that it is controlled with a traction device according to any one of claims 1-9.