CN111921069A - Visual stomach tube draw gear of inflatable - Google Patents

Abstract

An inflatable visualized gastric tube traction device belongs to the field of medical devices. Usually, in non-surgical patients, the gastrointestinal tube can only reach the body of the stomach, and it is difficult to enter the small intestine through the pylorus. An inflatable visual gastric tube traction device, wherein a balloon band (3) is sheathed outside a combined guide balloon (2), the combined guide balloon (2) is fixedly connected to a sealing plug (4), and the other end of the sealing plug (4) The sleeve (5) is sheathed, and the outer wall of the sleeve (5) is sheathed with a gastrointestinal tube (6); the endoscope (1) passes through the gastrointestinal tube (6), the sleeve (5), the sealing plug (4), A combined guide airbag (2) is provided, and a camera is installed at the front end of the endoscope (1); a group of inflatable tubes (7) are evenly arranged on the outer periphery of the endoscope (1). The gastric tube traction device designed by the invention can be bent and rotated, and the degree of freedom is more flexible, and operations such as bending, torsion, rotation and the like can be realized through the control amount of gas in different channels.

Description

An inflatable visual gastric tube traction device

technical field

The invention relates to an inflatable visualized gastric tube traction device.

Background technique

Nasogastric (intestinal) tube intubation is a medical procedure that involves inserting a plastic tube through the nasogastric or nasogastric tube, through the throat, and down into the stomach (intestine), where the nasogastric (intestinal) tube is used for feeding and medication As well as other oral drugs, the nasogastric (intestinal) tube enters the stomach (intestine) through the nasal cavity and the esophagus through the cardia. Usually, in non-surgical patients, the gastrointestinal tube can only reach the stomach body by hand, and it is difficult to enter the small intestine through the pylorus, because the gastrointestinal When the tube touches the bottom of the greater curvature of the stomach, it is easy to get stuck, and continuous application will cause the tube to accumulate, making it difficult to move forward. The pyloric area in the latter half of the gastric body is a blind area, and it is difficult to accurately find the pylorus without visualization with a gastroscope. Alternatively, the gastric tube can be placed by means of a rigid guide wire, but it will damage the gastric body and cause the risk of bleeding. Inability to place a gastrointestinal tube into the small intestine.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an inflatable visual gastric tube traction device in order to solve the problem that the existing gastric tube for gastrointestinal feeding and drug administration reaches the gastric body intelligently, and it is difficult to continue intubation to the small intestine.

An inflatable visual gastric tube traction device, an inflatable visual gastric tube traction device, the inflatable visual gastric tube traction device comprises an endoscope, a combined guide balloon, a balloon band, a sealing plug, a sleeve, a stomach Intestinal tube and a set of inflatable tubes, endoscope, combined guide balloon, sealing plug, cannula, and gastrointestinal tube are arranged concentrically;

The airbag straps are arranged according to the extension direction of the traction device and are sheathed on the outer wall of the combined guide airbag, the shape of the combined guide airbag is cylindrical, the rear end of the combined guide airbag is fixedly connected to one end of the sealing plug, and the other end of the sealing plug is fixed. One end is covered with the front end of the sleeve, and the outer wall of the sleeve is covered with a gastrointestinal tube; the endoscope passes through the gastrointestinal tube, the sleeve, the sealing plug, the combined guide balloon in sequence, and a camera is installed at the front end of the endoscope; the endoscope and the sleeve A group of inflatable tubes is arranged in the space between the tubes, the front end of the inflatable tube is connected to the combined guide air bag after passing through the sleeve and the sealing plug, and a group of inflatable tubes is evenly distributed around the endoscope in the circumferential direction; The belt, the sleeve, the gastrointestinal tube and the inflatable tube are all made of flexible materials.

The beneficial effects of the present invention are:

The invention controls the multi-degree-of-freedom bending and rotation of the endoscope lens through the multi-channel inflatable structure to realize the function of a mini gastroscope and the multi-degree-of-freedom visual movement, thereby ensuring that the traction device leads to the pylorus even if the angle is adjusted through the greater curvature of the gastric body. Different from the mechanical structure of the gastroscope, taking the three-channel as an example, the three-channel inflatable structure is simpler, the manufacturing cost is extremely low, and the degree of freedom of bending and rotation is more flexible, and the bending, torsion, rotation and other movements can be realized through the control amount of the gas in the different channels. .

The three-channel airbag is a hollow structure with built-in three equal intervals, and each cavity has an equally spaced convex structure, which produces different degrees of deformation during the inflation process to achieve bending motion. Each airbag module of the combined guide airbag has a belt groove on the outer surface, which is used to wind the airbag belt. There is an independent cylindrical channel in the middle of the combined guide balloon for placing the miniature endoscope. The overall structure of the airbag module is molded by one-time injection molding, which ensures air tightness to the greatest extent.

The sealing plug is a kind of hard plastic, which is assembled on the combined guide airbag structure, and is evenly distributed with a group of small channels of equal diameter, namely the sealing lock peripheral hole, which is used to install the inflation tube. The fixing of the inflatable tube and the sealing of the silicone airbag module are achieved by a special adhesive. The end of the sealing plug is adapted to the silicone sleeve, and the silicone sleeve accommodates the inflatable tube for easy movement in the gastric tube.

The inflation tube is a flexible plastic tube with a small diameter of 1mm, which is used for inflation of the airbag module.

The cannula is a highly transparent medical silicone tube, which is used for the storage of the inflatable tube, and at the same time, the sealing plug and the balloon module are fixed, so that it is convenient to be pulled out of the gastric tube after the traction is completed.

The gastrointestinal tube is an ordinary medical silicone gastrointestinal tube with a porous structure at the front end, which is placed to block the effusion and food residue. After the balloon and the sleeve structure are inserted into the small intestine through the pylorus, it can be smoothly inserted along the channel to complete the intra-intestinal insertion. operation.

Set up an inflation system. The inflation system includes three parts: a micro-inflator pump, an inflation controller, and a visual display. The micro-inflator pump carries out gas delivery. The operator controls the bending motion according to the actual situation of the airbag inside the stomach. The inflation controller sends out inflation commands to achieve Different air volumes in different cavities are used to control the movement.

The miniature endoscope is a professional endoscope with a diameter of 2mm, which can realize the function of visualization through the channel between the cannula and the balloon.

The principle of multi-degree-of-freedom motion:

The interior of the multi-channel airbag is composed of a uniform sealed air chamber. Due to the uneven deformation and expansion of the closed chamber due to the air pressure, the overall structure moves in the opposite direction, resulting in bending. Due to the regular air supply of the air pump, complex movements such as rotation and torsion can be realized according to the program design. To achieve multi-degree-of-freedom motion that can be manipulated by humans.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a partial cross-sectional view of the present invention;

Fig. 3 is the sectional exploded view of the present invention;

Fig. 4 is the structural representation of the sealing plug of the present invention;

5 is a schematic structural diagram of the assembled guide airbag assembly exploded view of the present invention;

6 is a schematic structural diagram of an airbag module of the present invention;

7 is a schematic structural diagram of the airbag module of the present invention being an isometric airbag module;

8 is a schematic structural diagram of an inflated and bent shape when the airbag module of the present invention is an isometric airbag module;

9 is a schematic structural diagram of the airbag module of the present invention being a decreasing airbag module;

10 is a schematic structural diagram of an inflated and bent shape when the airbag module of the present invention is a progressively decreasing airbag module;

11 is a schematic structural diagram of the airbag module of the present invention being an incremental airbag module;

12 is a schematic structural diagram of an inflated and bent shape when the airbag module of the present invention is an incremental airbag module;

13 is a schematic structural diagram of the airbag module of the present invention being a downward-bending airbag module;

FIG. 14 is a schematic structural diagram of the inflated and bent shape when the airbag module of the present invention is a downward-curved airbag module;

15 is a schematic structural diagram of the airbag module of the present invention being an up-bending airbag module;

16 is a schematic structural diagram of an inflated and bent shape when the airbag module of the present invention is an upward-curved airbag module;

17 is a schematic structural diagram of the airbag module of the present invention being a biased airbag module;

18 is a schematic structural diagram of the inflated and bent shape of the airbag module of the present invention when it is a biased airbag module;

FIG. 19 is a schematic structural diagram of the working principle of the present invention.

Detailed ways

Specific implementation one:

An inflatable visual gastric tube traction device of this embodiment, as shown in Figures 1-3, the inflatable visual gastric tube traction device includes an endoscope 1, a combined guide balloon 2, a balloon band 3, and a sealing plug 4. The sleeve 5, the gastrointestinal tube 6 and a set of inflatable tubes 7, the endoscope 1, the combined guide balloon 2, the sealing plug 4, the sleeve 5, and the gastrointestinal tube 6 are arranged concentrically;

The airbag straps 3 are arranged according to the extension direction of the traction device and are sheathed on the outer wall of the combined guide airbag 2. The shape of the combined guide airbag 2 is cylindrical, and the rear end of the combined guide airbag 2 is fixedly connected to one end of the sealing plug 4. , the other end of the sealing plug 4 sets the front end of the sleeve 5, and the outer wall of the sleeve 5 sets the gastrointestinal tube 6; the endoscope 1 passes through the gastrointestinal tube 6, the sleeve 5, the sealing plug 4, and the combined guide balloon 2 in turn. , a camera is installed at the front end of the endoscope 1, and the camera is located outside the front end of the combined guide balloon 2; a set of inflatable tubes 7 are arranged in the space between the endoscope 1 and the sleeve 5, and the front end of the inflatable tube 7 passes through The sleeve 5 and the sealing plug 4 are connected to the combined guide balloon 2, and a group of inflatable tubes 7 are evenly distributed around the endoscope 1 along the circumferential direction; The tubes 7 are all made of flexible material.

Specific implementation two:

Different from the specific embodiment 1, an inflatable visual gastric tube traction device of this embodiment, as shown in FIG. The mirror 1 thus seals the hole 4a in the plug, passes through and is installed; a group of sealing and locking peripheral holes 4b are evenly distributed on the outer ring of the hole 4a in the sealing plug, so that the inflatable tube 7 can be passed through and installed therethrough.

The number of the sealing lock peripheral holes 4b is 3-6.

Specific implementation three:

Different from the first or second embodiment, an inflatable visual gastric tube traction device of this embodiment, as shown in Figures 5 and 6, the combined guide balloon 2 includes a set of balloon modules 2a, a set of The airbag module 2a is arranged in a circular shape with the central axis of the endoscope 1 as the central axis. The central axis of the airbag module 2a is parallel to the central axis of the endoscope 1. Each airbag module 2a is a long and hollow structure. The end of the airbag module 2a is provided with an inflatable hole 2a2, the outer side wall of the airbag module 2a is lined with a set of belt grooves 2a1 at equal intervals along the length direction, and an inner groove 2a3 is provided on the inner sidewall of the airbag module 2a, and the extension direction of the inner groove 2a3 is the same as that of the airbag. The length direction of the module 2a is the same;

The belt groove 2a1 is used to install and fix the airbag belt 3, and the combined guide airbag 2 can be fixed with the help of the airbag belt 3. The inflation hole 2a2 is used to insert the inflation tube 7, and the groove 2a3 on the guide airbag 2 is used. Arrange the channels for the installation of the endoscope 1 to provide space for the insertion and installation of the endoscope 1;

The manufacturing material of the airbag module 2a is a flexible silicone material.

Specific implementation four:

The difference from the third embodiment is that, in an inflatable visualized gastric tube traction device of this embodiment, the cross section of the balloon module 2a is fan-shaped.

Specific implementation five:

Different from Embodiment 1, 2 or 4, in an inflatable visual gastric tube traction device of this embodiment, as shown in FIG. The cavity 2a4 is arranged along the length direction of the airbag module 2a;

The volume and shape of the set of airbag cavities 2a4 are exactly the same, forming an isometric airbag module.

As shown in FIG. 8 , in the isovolumetric airbag module, starting from the section of the inflation hole 2a2, the volume of each airbag cavity 2a4 is the same, and the isovolumetric airbag module will linearly and gradually bend after inflation.

Specific implementation six:

The difference from the fifth embodiment is that in an inflatable visualized gastric tube traction device of this embodiment, as shown in FIG. Scale down to form a tapered airbag module.

As shown in Fig. 10, in the decreasing airbag module, starting from one end of the inflation hole 2a2, the volume of each airbag cavity 2a4 is gradually smaller; after inflation, the decreasing airbag module is close to the side of the inflation hole 2a2 The curvature is large, and the degree of curvature decreases gradually as it moves away from the inflation hole 2a2.

Specific implementation seven:

Different from the fifth embodiment, in an inflatable visualized gastric tube traction device of this embodiment, as shown in FIG. 11 , the volume of the set of balloon cavities 2a4 gradually increases from one end of the inflation hole 2a2 to the other end. increase to form a progressive airbag module.

As shown in Fig. 12, in the incremental airbag module, starting from the section of the inflation hole 2a2, the volume of each airbag cavity 2a4 is gradually increased; after inflation, the incremental airbag module is close to the side of the inflation hole 2a2 The curvature is small, and the degree of curvature increases gradually as it moves away from the inflation hole 2a2.

Eighth specific implementation:

The difference from the fifth embodiment is that, in an inflatable visual gastric tube traction device of this embodiment, as shown in FIG. 13 , among the group of balloon cavities 2a4, the volume of the balloon cavity 2a4 in the middle position is shown in FIG. 13 . Maximum, the volume of the airbag cavity 2a4 extending to both sides gradually decreases, forming a downward-curved airbag module;

As shown in FIG. 14 , the bending degree is the largest at the middle part of the inflated down-bending airbag module, and the degree of bending gradually decreases as it extends to both ends.

Specific implementation nine:

The difference from the fifth embodiment is that in the inflatable visualized gastric tube traction device of this embodiment, as shown in FIG. 15 , among the group of balloon cavities 2a4, the volume of the balloon cavity 2a4 in the middle position is shown in FIG. 15 . Minimum, the volume of the airbag cavity 2a4 extending to both sides gradually increases, forming an upwardly curved airbag module;

As shown in FIG. 16 , the bending in the middle part of the upward-bending airbag module after inflation is the smallest, and the bending degree increases gradually as it extends to both ends.

Specific implementation ten:

Different from the fifth embodiment, an inflatable visualized gastric tube traction device of this embodiment, as shown in FIG. 17 , in the group of balloon cavities 2a4 described above, is in the middle position and away from the position of the inflation hole 2a2. The airbag cavity 2a4 has the largest volume, which is larger than the volume of other airbag cavities 2a4, forming a biased airbag module;

As shown in FIG. 18 , after inflation, the deflected position where the deflected airbag module is in the middle and away from the inflation hole 2a2 is most bent.

working principle:

Before use, the inflation visualization gastric tube traction device B should be connected with the inflation system, and the inflation system includes three parts: a micro inflation pump A02, an inflation controller A03, and a visual display A01. As shown in Figure 19.

The visual display A01 is connected to the endoscope 1, the micro-inflator pump A02 is connected to the inflation tube 7, and the inflation controller A03 is used to control which inflation tube 7 the micro-inflator pump A02 inflates, so that the corresponding air bag module 2a is inflated and inflated. produce bending.

The airbag module 2a can have various forms, as shown in Figures 7-18, which are an equal volume airbag module, a gradually decreasing airbag module, an increasing airbag module, a downwardly curved airbag module, an upwardly curved airbag module, and a biased airbag module. The airbag module and its inflated shape; in use, more than several types of airbag modules 2a can be combined according to specific needs to form the required combined guide airbag 2 .

In practical application, the inflatable visual gastric tube traction device B is inserted from the patient's nasal cavity, and gradually penetrates into the patient's stomach under the guidance of the image fed back from the endoscope 1 to the visual display A01; The balloon module 2a is inflated, so that the combined guide balloon 2 is bent accordingly, so as to guide the gastrointestinal tube 6 at the rear end through the pylorus of the patient's stomach and enter the patient's small intestine; after entering the patient's small intestine, Combined with the images fed back by the endoscope 1, the corresponding balloon module 2a in the combined guide balloon 2 can be continuously inflated, so that the guide gastrointestinal tube 6 can continue to penetrate into the small intestine of the patient, so as to reach the site of feeding and administration, and at the same time. The patient's gastrointestinal affected area is examined by the endoscope 1 .

After reaching the predetermined position, the endoscope 1, the combined guide balloon 2, the balloon band 3, the sealing plug 4, the sleeve 5, and the inflatable tube 7 can be pulled out from the rear end of the gastrointestinal tube 6, and then they can pass through the stomach. The intestinal tube 6 is fed and administered into the body of the patient, and the gastrointestinal tube 6 is pulled out from the patient after the feeding and administration are completed.

Claims (10)

1. An inflatable visual gastric tube traction device, characterized in that: the inflatable visual gastric tube traction device comprises an endoscope (1), a combined guide balloon (2), a balloon band (3), a sealing plug (4), sleeve (5), gastrointestinal tube (6) and a set of inflatable tubes (7), endoscope (1), combined guide balloon (2), sealing plug (4), sleeve (5) ), the gastrointestinal tube (6) is set concentrically; The airbag straps (3) are arranged according to the extension direction of the traction device and are sheathed on the outer wall of the combined guide airbag (2). The end is fixedly connected to one end of the sealing plug (4), the other end of the sealing plug (4) is sheathed with the front end of the sleeve (5), and the outer wall of the sleeve (5) is sheathed with a gastrointestinal tube (6); the endoscope (1) is in turn Pass through the gastrointestinal tube (6), the sleeve (5), the sealing plug (4), the combined guide balloon (2), and install the camera at the front end of the endoscope (1); the endoscope (1) and the sleeve ( 5) A set of inflatable tubes (7) are arranged in the space between them, and the front end of the inflatable tube (7) passes through the sleeve (5) and the sealing plug (4) and is connected to the combined guide airbag (2). The inflatable tube (7) is evenly distributed around the endoscope (1) along the circumferential direction; the airbag band (3), the sleeve (5), the gastrointestinal tube (6), and the inflatable tube (7) are all made of flexible materials to make. 2. An inflatable visual gastric tube traction device according to claim 1, characterized in that: the middle part of the sealing plug (4) is provided with a sealing plug middle hole (4a), and the endoscope (1 ) passes through; a group of sealing lock peripheral holes (4b) are evenly distributed on the outer ring of the hole (4a) in the sealing plug, and the inflation tube (7) passes through this. 3. An inflatable visualized gastric tube traction device according to claim 1 or 2, characterized in that: the combined guide airbag (2) comprises a set of airbag modules (2a), a set of airbag modules (2a) ) The central axis of the endoscope (1) is arranged in a circular shape, the central axis of the airbag module (2a) is parallel to the central axis of the endoscope (1), and each airbag module (2a) is elongated A hollow structure, the end of the airbag module (2a) is provided with an inflation hole (2a2), the outer sidewall of the airbag module (2a) is lined with a set of belt grooves (2a1) at equal intervals along the length direction, and the inner sidewall of the airbag module (2a) An inner groove (2a3) is provided, and the extension direction of the inner groove (2a3) is consistent with the length direction of the airbag module (2a); The belt groove (2a1) is used for installing and fixing the airbag belt (3), the combined guide airbag (2) is fixed by means of the airbag belt (3), and the inflation hole (2a2) is used for inserting the inflation tube (7), the grooves (2a3) on the guiding balloon (2) are arranged to form a channel for the installation of the endoscope (1), providing space for the insertion and installation of the endoscope (1); The airbag module (2a) is made of flexible silicone material. 4 . The inflatable visualized gastric tube traction device according to claim 3 , wherein the cross section of the balloon module ( 2 a ) is fan-shaped. 5 . 5. An inflatable visual gastric tube traction device according to claim 1, 2 or 4, characterized in that: the airbag module (2a) further has a set of airbag cavities (2a4) inside the airbag cavities. (2a4) a row portion along the length direction of the airbag module (2a); The volume and shape of the group of airbag cavities (2a4) are exactly the same. 6 . The inflatable visualized gastric tube traction device according to claim 5 , wherein the volume of the group of balloon cavities ( 2a4 ) gradually decreases from one end of the inflation hole ( 2a2 ) to the other end. 7 . 7 . The inflatable visualized gastric tube traction device according to claim 5 , wherein the volume of the group of balloon cavities ( 2a4 ) gradually increases from one end of the inflation hole ( 2a2 ) to the other end. 8 . 8. The method according to claim 5, characterized in that: among the group of airbag cavities (2a4), the airbag cavity (2a4) in the middle position has the largest volume, and the airbag cavity (2a4) extending to both sides ) gradually decreases in volume. 9. The method according to claim 5, characterized in that: among the group of airbag cavities (2a4), the airbag cavity (2a4) in the middle position has the smallest volume, and the airbag cavity (2a4) extending to both sides has the smallest volume. ) gradually increased in volume. 10. The method according to claim 5, characterized in that: in the group of airbag cavities (2a4), the airbag cavity (2a4) in the middle position and away from the inflation hole (2a2) has a larger volume than other airbag cavities volume of the body (2a4).

Images