A simple multi-scenario applicable guidewire channel device for rapid exchange

Abstract

The present application relates to the technical field of medical devices, in particular to a simple multi-scene applicable guide wire channel device for rapid exchange, comprising a gastrointestinal examination instrument body and a plurality of guide wires, the guide wires are matched with sheaths in outer gaps; the guide wires are respectively slidably matched with first and second sleeves, the first sleeve is fixedly connected with an expansion layer outside for expanding the diameter of the intestine, the expansion layer is communicated with the outside through a trachea; the second sleeve is bonded with a fixing belt outside for binding the gastrointestinal examination instrument body, a separation mechanism for separating the fixing belt is arranged at the connection between the fixing belt and the second sleeve; the gastrointestinal examination instrument body is fixed by hand on the guide wire channel, and the gastrointestinal examination instrument body is conveyed to the expected gastrointestinal position along the guide wire, which has the advantages of low cost and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and specifically to a simple, multi-scenario applicable guidewire channel device for rapid exchange. Background Technology

[0002] Capsule endoscopy is a medical device that is ingested orally and has a built-in miniature camera and wireless transmission module. It can move autonomously or in a controlled manner in the digestive tract, capture images in real time and transmit them to an external receiving device, enabling non-invasive and visual examination of the small intestinal mucosa, thus overcoming the gap in the diagnosis of deep small intestinal diseases that traditional endoscopy cannot detect.

[0003] However, the success of capsule endoscopy depends on the smooth passage of the capsule through the gastrointestinal tract. The human duodenum, as a key segment of the digestive tract connecting the stomach and small intestine, has a complex anatomical structure and special function, which makes it prone to capsule retention. For example, congenital malformations or the narrow intestines of children may obstruct the passage of the capsule. In cases where Crohn's disease, tumors, surgical adhesions, or other conditions cause duodenal stenosis, endoscopic intervention is needed to deliver the capsule to the descending duodenum or small intestine.

[0004] Current endoscopic interventions require anesthesia, but for complex stenosis (such as annular stenosis or multiple stenosis), the endoscopic operating space is limited, making it difficult to adjust the delivery direction and potentially leading to complications such as gastrointestinal perforation and bleeding, resulting in delivery difficulties. Furthermore, endoscopic instruments such as gastroscopes, colonoscopes, and bronchoscopes also face difficulties passing through narrow sections of the gastrointestinal tract. Therefore, this invention provides a simple device to assist the gastrointestinal examination instrument in passing through complex duodenal stenosis. The device involves manually fixing the gastrointestinal examination instrument on a guidewire channel and delivering the instrument along the guidewire. It has the advantages of low cost and ease of operation, providing more options for resolving capsule retention. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a simple, multi-scenario applicable guidewire channel device for rapid exchange. By manually fixing the gastrointestinal examination instrument body on the guidewire channel, the gastrointestinal examination instrument body is transported along the guidewire to the desired gastrointestinal location. It has the advantages of low cost and convenient operation.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A simple guidewire channel device applicable to multiple scenarios for rapid exchange includes a gastrointestinal examination instrument body and several guidewires, with a sheath fitted around the guidewires; a first sleeve and a second sleeve are slidably fitted on the guidewires respectively, and an expansion layer for expanding the diameter of the intestine is fixedly connected to the outside of the first sleeve, and the expansion layer is connected to the outside through a trachea.

[0007] The second sleeve has a fixing strap attached to the outside for binding the body of the gastrointestinal examination instrument. The connection between the fixing strap and the second sleeve is provided with a release mechanism for separating the fixing strap.

[0008] Furthermore, the fixing strap is a layer of medical adhesive tape, which is wrapped around the second sleeve.

[0009] Furthermore, the fixing belt is an elastic rubber belt, with one side of the elastic rubber belt fixedly connected to the second sleeve, and the other side of the elastic rubber belt fully fitted with the second sleeve.

[0010] Furthermore, a limiting net is fixedly connected to the outside of the expansion layer. The limiting net is symmetrically arranged with the first sleeve as the center, and a notch is opened on one side of the limiting net.

[0011] Furthermore, the detachment mechanism includes a separating blade that slides with the second sleeve. A sliding cavity is provided inside the second sleeve, and the sliding cavity is connected to the outside through an air pipe. The air pipe is located inside the second sleeve, and the separating blade is located inside the sliding cavity. The end of the separating blade away from the sliding cavity is parallel to the fixing belt.

[0012] When the sliding chamber is under normal air pressure, the separating blade abuts against the fixed belt, and the separating blade is located on the side of the second sleeve closer to the guide wire conveying end; when the sliding chamber is under negative pressure adsorption, the separating blade separates from the fixed belt, and the separating blade is located on the side of the second sleeve away from the guide wire conveying end.

[0013] Furthermore, the fixing belt has several slits, and a pull rope is slidably fitted inside the second sleeve. One end of the pull rope is fixedly connected to the separating blade, and the other end of the pull rope is fixedly connected to the side of the fixing belt away from the separating blade.

[0014] Furthermore, an RF module is fixedly connected to the feed end of the guide wire. The RF module is used to send RF signals to the outside world in real time, and the RF module is communicatively connected to an RF receiving module.

[0015] The radio frequency (RF) receiver module is used to collect RF signals within the signal reception range and to provide an alert when an RF signal appears within the signal reception range.

[0016] Furthermore, the radio frequency receiving module is also electrically connected to a display module, which is used to record and store intestinal ultrasound images of the patient during the pre-examination; the radio frequency receiving module is also electrically connected to a gyroscope for acquiring the direction of movement.

[0017] The display module is used to show the current position of the radio frequency receiving module in the intestinal ultrasound image, and marks the direction of movement of the position based on the orientation of movement.

[0018] Furthermore, the display module is also used to acquire images of the gastrointestinal examination instrument body, acquire images of intestinal stenosis and the first cannula based on the acquired images, acquire the intestinal stenosis diameter based on the intestinal stenosis diameter, output the reference expansion diameter of the corresponding expansion layer based on the intestinal stenosis diameter, and compare the reference expansion diameter with the first cannula image at the current time. If they match, a normal delivery instruction is displayed; if they do not match, a reminder instruction is displayed.

[0019] Furthermore, a pressure sensor is connected inside the trachea of ​​the second tube, which is used to measure the pressure data inside the trachea in real time.

[0020] The display module is also used to display air pressure data and compare the air pressure data before and after the current time. If they are consistent, the air pressure data is displayed; if they are inconsistent, the air pressure data is displayed in a flashing manner.

[0021] The above approach has the following beneficial effects:

[0022] 1. In this solution, the variability of the guidewire is utilized during use to allow the guidewire to move along the tortuous interior of the duodenum, making it easy to adjust the direction of movement and reducing contact damage caused by conventional instrument delivery. At the same time, the delivery channel constructed by the guidewire adapts to different shapes of the human body, making it easy to deliver the gastrointestinal examination instrument to the expected gastrointestinal location and pass through intestinal narrowing.

[0023] 2. This solution uses a fixing strap to bind and fix the gastrointestinal examination instrument body, which has the advantages of convenient operation and low cost. The sliding of the second sleeve facilitates the transport and movement of the gastrointestinal examination instrument body along the guide wire, making it easier for the gastrointestinal examination instrument body to pass through narrow parts of the intestine, which is convenient for clinical use.

[0024] 3. In this solution, the first and second cannulas are used in combination. The expansion layer on the first cannulas expands the narrow part of the intestine, providing space for the second cannulas and the gastrointestinal examination instrument to move through the narrow part of the intestine, so as to facilitate the delivery of the gastrointestinal examination instrument to the expected gastrointestinal location for imaging diagnosis.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the first sleeve in an embodiment of the simple, multi-scenario applicable guide wire channel device for rapid exchange of the present invention;

[0027] Figure 2 This is a schematic diagram of the second sleeve in an embodiment of the simple, multi-scenario applicable guide wire channel device for rapid exchange of the present invention;

[0028] Figure 3 for Figure 2 A schematic cross-sectional view along the AA direction.

[0029] The reference numerals in the accompanying drawings of the instruction manual include: 1. guidewire; 2. first cannula; 21. expansion layer; 22. limiting net; 3. second cannula; 31. fixing strap; 32. separating knife; 33. pull rope; 4. gastrointestinal examination instrument body. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The following detailed description illustrates the specific implementation method:

[0034] Example 1:

[0035] As attached Figures 1 to 3As shown: A simple, multi-scenario applicable guidewire channel device for rapid exchange includes a gastrointestinal examination instrument body 4 and several guidewires 1. A sheath is fitted around each guidewire 1. In this embodiment, the gastrointestinal examination instrument body 4 includes, but is not limited to, capsule endoscopes, gastroscopes, colonoscopes, bronchoscopes, and enteral nutrition catheters. A first sheath 2 and a second sheath 3 are slidably fitted onto each guidewire 1. An expansion layer 21 for expanding the intestinal diameter is fixedly connected to the outside of the first sheath 2. The expansion layer 21 communicates with the outside through a trachea. A limiting net 22 is fixedly connected to the outside of the expansion layer 21. The limiting net 22 is symmetrically arranged around the first sheath 2, and a notch is opened on one side of the limiting net 22. The maximum expansion of the expansion layer 21 is limited by the limiting net 22 to prevent excessive expansion of the expansion layer 21 from causing excessive compression of the surrounding tissue; at the same time, the notch formed on the first sleeve 2 by the limiting net 22 allows the formation of an arc-shaped opening during the expansion of the expansion layer 21 so that the second sleeve 3 and the gastrointestinal examination instrument body 4 can pass through, facilitating the passage of the gastrointestinal examination instrument body 4 through the intestinal stenosis.

[0036] The second sleeve 3 is externally bonded with a fixing strap 31 for securing the gastrointestinal examination instrument body 4. The fixing strap 31 is a layer of medical adhesive tape wrapped around the second sleeve 3. In another embodiment, the fixing strap 31 is an elastic rubber band, with one side of the elastic rubber band fixedly connected to the second sleeve 3 and the other side of the elastic rubber band fully fitted with the second sleeve 3.

[0037] A separation mechanism for the fixed belt 31 is provided at the connection between the fixed belt 31 and the second sleeve 3. The separation mechanism includes a separation blade 32 that slides with the second sleeve 3. A sliding cavity is provided inside the second sleeve 3. The sliding cavity is connected to the outside through an air pipe located inside the second sleeve 3. The separation blade 32 is located inside the sliding cavity. The end of the separation blade 32 away from the sliding cavity is parallel to the fixed belt 31. When the sliding cavity is in a normal air pressure state, the separation blade 32 abuts against the fixed belt 31. The separation blade 32 is located on the side of the second sleeve 3 closer to the conveying end of the guide wire 1. When the sliding cavity is in a negative pressure adsorption state, the separation blade 32 separates from the fixed belt 31. The separation blade 32 is located on the side of the second sleeve 3 away from the conveying end of the guide wire 1.

[0038] The specific implementation process is as follows:

[0039] In this embodiment, the application is described using the delivery method of a capsule endoscope. Before delivering the guidewire 1, the gastrointestinal examination instrument body 4 is fixed with the fixing strap 31. The gastrointestinal examination instrument body 4 is wrapped and fixed to the second sleeve 3 by a readily available and inexpensive medical adhesive tape layer. This method has the advantages of easy material availability and low cost. Moreover, after use, the medical adhesive tape layer can be easily removed, and the application can be extended to other needs that require the delivery of instruments into the body.

[0040] The elastic rubber band allows for deformation and expansion, making it easy to adapt to different diameters of the gastrointestinal examination instrument body 4. This allows physicians to quickly fix the gastrointestinal examination instrument body 4 onto the second sleeve 3, reducing the cumbersome steps involved in wrapping the medical tape layer and improving the convenience of use.

[0041] During the delivery of the gastrointestinal examination instrument body 4, the deformable characteristics of the guidewire 1 are utilized to move the guidewire 1 along the tortuous interior of the duodenum, which facilitates the adjustment of the direction of movement and reduces contact damage caused during conventional instrument delivery. At the same time, the delivery channel constructed by the guidewire 1, which adapts to different shapes of the human body, facilitates the delivery of the gastrointestinal examination instrument body 4 to the expected gastrointestinal location and through the narrow intestines.

[0042] During the dilation of intestinal stenosis, the first cannula 2 and the second cannula 3 are used in combination. The expansion layer 21 on the first cannula 2 expands the narrow part of the intestine, providing space for the second cannula 3 and the gastrointestinal examination instrument body 4 to move through the narrow part of the intestine, so as to facilitate the delivery of the gastrointestinal examination instrument body 4 to the expected gastrointestinal position for imaging diagnosis.

[0043] After the gastrointestinal examination instrument body 4 passes through the narrow part of the intestine, the negative pressure adsorption change generated by the trachea drives the separation knife 32 to cut the fixation band 31, causing the fixation band 31 to break, so that the fixation band 31 can be separated from the gastrointestinal examination instrument body 4, and the gastrointestinal examination instrument body 4 can fall into the duodenum for imaging diagnosis.

[0044] Example 2:

[0045] The difference from Embodiment 1 is that in another embodiment, the fixing belt 31 has several slits, and a pull rope 33 is slidably fitted inside the second sleeve 3. One end of the pull rope 33 is fixedly connected to the separating blade 32, and the other end of the pull rope 33 is fixedly connected to the side of the fixing belt 31 away from the separating blade 32.

[0046] The specific implementation process is as follows: By arranging the fixing band 31 with a slit on the side close to the separating knife 32, it is easy for the separating knife 32 to break the fixing band 31. At the same time, as the separating knife 32 moves away from the guide wire 1, the separating knife 32 drives the pull rope 33 to move, so that the pull rope 33 drives the fixing band 31 on the other side to move away from the separating knife 32. Since one side of the fixing band 31 is fixedly connected to the second sleeve 3, it is easy for the fixing band 31 to break and detach along both sides of the slit, so that the gastrointestinal examination instrument body 4 can fall into the intestine.

[0047] Example 3:

[0048] The difference from Embodiment 2 is that the guide wire 1 is fixedly connected to an RF module at its delivery end. The RF module is used to transmit RF signals to the outside world in real time. The RF module is communicatively connected to an RF receiving module. The RF receiving module is used to collect RF signals within the signal receiving range and to provide an alert when RF signals appear within the signal receiving range.

[0049] For example, during guidewire 1 delivery, the radio frequency receiving module is moved outside the body to collect radio frequency signals over short distances to determine the direction of movement of guidewire 1 during delivery. Based on the indication from the external radio frequency receiving module, the subsequent delivery direction of guidewire 1 can be adjusted according to the patient's intestinal ultrasound images, thereby improving delivery efficiency.

[0050] Example 4:

[0051] The difference from Embodiment 3 is that the radio frequency receiving module is also electrically connected to a display module, which is used to record and store the intestinal ultrasound images of the patient in advance; the radio frequency receiving module is also electrically connected to a gyroscope for acquiring the position of movement; the display module is used to display the position of the radio frequency receiving module in the intestinal ultrasound image at the current time, and to mark the direction of movement of the position based on the position of movement.

[0052] For example, the direction of the patient's intestinal curvature can be obtained by displaying intestinal ultrasound images, and the position and movement direction of the radio frequency receiving module can be displayed to determine whether the delivery direction of the guidewire 1 at the current time matches the direction of intestinal curvature, so as to improve the delivery efficiency of the guidewire 1, and to determine the support position of the expansion layer 21.

[0053] Example 5:

[0054] The difference from Embodiment 4 is that the display module is also used to acquire images of the gastrointestinal examination instrument body 4, acquire images of intestinal stenosis and the first cannula 2 based on the acquired images, acquire reference expansion diameter of the expansion layer 21 corresponding to the intestinal stenosis diameter based on the intestinal stenosis image, and compare the reference expansion diameter with the first cannula 2 image at the current time. If they match, a normal delivery instruction is displayed; if they do not match, a reminder instruction is displayed.

[0055] For example, by acquiring images of the gastrointestinal examination instrument body 4, it is easy to determine the specific situation of intestinal stenosis, provide a reference for the expansion diameter of the expansion layer 21, and then compare the reference expansion diameter with the image of the first cannula 2 at the current time to remind medical staff to make adjustments, thereby ensuring the safety of the intestinal expansion process.

[0056] Example 6:

[0057] The difference from Embodiment 5 is that a pressure sensor is connected inside the trachea of ​​the second sleeve 3. The pressure sensor is used to measure the pressure data inside the trachea in real time. The display module is also used to display the pressure data and compare the pressure data before and after the current time. If they are consistent, the pressure data is displayed. If they are inconsistent, the flashing pressure data is displayed.

[0058] For example, the air pressure data is displayed to determine the current detachment status of the gastrointestinal examination instrument body 4; when the gastrointestinal examination instrument body 4 detaches, the air pressure data flashes to remind the physician to keep the first cannula 2 and guide wire 1 in the same position to ensure the stable descent of the gastrointestinal examination instrument body 4.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A simple multi-scene applicable guide wire channel device for rapid exchange, comprising a gastroenterological instrument body (4) and a plurality of guide wires (1), the guide wire (1) is externally gap fitted with a sheath tube; characterized in that, The guidewire (1) is slidably fitted with a first sleeve (2) and a second sleeve (3). The first sleeve (2) is fixedly connected to an expansion layer (21) for expanding the diameter of the intestine. The expansion layer (21) is connected to the outside through the trachea. The second sleeve (3) is externally bonded with a fixing strap (31) for binding the body (4) of the gastrointestinal examination instrument. The connection between the fixing strap (31) and the second sleeve (3) is provided with a disengagement mechanism for separating the fixing strap (31).

2. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 1, characterized in that, The fixing strap (31) is a medical adhesive tape layer, which is wrapped around the second sleeve (3).

3. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 2, characterized in that, The fixing band (31) is an elastic rubber band. One side of the elastic rubber band is fixedly connected to the second sleeve (3), and the other side of the elastic rubber band is fully fitted to the second sleeve (3).

4. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 3, characterized in that, The expansion layer (21) is fixedly connected to a limiting net (22). The limiting net (22) is arranged symmetrically with the first sleeve (2) as the center, and a notch is opened on one side of the limiting net (22).

5. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 4, characterized in that, The detachment mechanism includes a separating blade (32) that slides with the second sleeve (3). A sliding cavity is provided inside the second sleeve (3). The sliding cavity is connected to the outside through an air pipe. The air pipe is located inside the second sleeve (3). The separating blade (32) is located inside the sliding cavity. The end of the separating blade (32) away from the sliding cavity is parallel to the fixing belt (31). When the sliding chamber is under normal air pressure, the separating blade (32) abuts against the fixed belt (31), and the separating blade (32) is located on the side of the second sleeve (3) near the conveying end of the guide wire (1); when the sliding chamber is under negative pressure adsorption, the separating blade (32) separates from the fixed belt (31), and the separating blade (32) is located on the side of the second sleeve (3) away from the conveying end of the guide wire (1).

6. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 5, characterized in that, The fixing belt (31) has several slits, and the second sleeve (3) has a sliding fit with a pull rope (33). One end of the pull rope (33) is fixedly connected to the separating knife (32), and the other end of the pull rope (33) is fixedly connected to the side of the fixing belt (31) away from the separating knife (32).

7. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 6, characterized in that, The guide wire (1) is fixedly connected to an RF module. The RF module is used to send RF signals to the outside world in real time. The RF module is connected to an RF receiving module. The radio frequency (RF) receiver module is used to collect RF signals within the signal reception range and to provide an alert when an RF signal appears within the signal reception range.

8. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 7, characterized in that, The radio frequency receiving module is also electrically connected to a display module, which is used to record and store intestinal ultrasound images of the patient during a prior examination; the radio frequency receiving module is also electrically connected to a gyroscope for acquiring the direction of movement. The display module is used to show the current position of the radio frequency receiving module in the intestinal ultrasound image, and marks the direction of movement of the position based on the orientation of movement.

9. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 8, characterized in that, The display module is also used to acquire images of the gastrointestinal examination instrument body (4), acquire images of intestinal stenosis and the first cannula (2) based on the acquired images, acquire reference expansion diameter of the expansion layer (21) corresponding to the intestinal stenosis diameter based on the intestinal stenosis image, and compare the reference expansion diameter with the first cannula (2) image at the current time. If they are consistent, a normal delivery instruction is displayed; if they are inconsistent, a reminder instruction is displayed.

10. The simple, multi-scenario applicable guide wire channel device for rapid exchange according to claim 9, characterized in that, The second tube (3) is connected to a pressure sensor in the trachea. The pressure sensor is used to measure the pressure data in the trachea in real time. The display module is also used to display air pressure data and compare the air pressure data before and after the current time. If they are consistent, the air pressure data is displayed; if they are inconsistent, the air pressure data is displayed in a flashing manner.

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