Gastric tube assembly

Abstract

The utility model is specifically related to a stomach tube assembly, including stomach tube and lock knot device, wherein, lock knot device includes casing and lock mechanism. Casing has first clamping slot which sets up along first direction extension, and second clamping slot which sets up along second direction extension, first direction and second direction are angle setting, and stomach tube is detachably arranged in first clamping slot and second clamping slot. Lock mechanism includes first component and second component, and lock mechanism has first state and second state, in first state, first component fixes stomach tube's first part in first clamping slot, and second component fixes stomach tube's second part in second clamping slot, in second state, first component and second component respectively release the fixation to stomach tube, so that stomach tube can separate from first clamping slot and second clamping slot. The stomach tube assembly of the utility model can surround and lock the stomach tube on the ear by setting the lock mechanism, which helps to prevent the stomach tube from separating during the movement of the patient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a gastric tube assembly. Background Technology

[0002] Gastric tubes are widely used medical devices in clinical practice. Gastric tube drainage and nasogastric feeding are common diagnostic and treatment procedures in various departments. Although inserting a gastric tube is a frequent clinical medical activity and seems simple, it still carries certain risks. For example, the gastric tube is easily pulled by external forces, causing it to dislodge. Therefore, standard operating procedures specifically include a step for securing the gastric tube in place. However, current gastric tube placement often relies on adhesive tape for fixation, but the tape is prone to detachment and can cause discomfort or allergic reactions in patients. Utility Model Content

[0003] The purpose of this invention is to at least solve the safety hazards associated with the existing methods of fixing and placing gastric tubes. This purpose is achieved through the following technical solution: This utility model discloses a gastric tube assembly, including a gastric tube and a locking device, wherein the locking device includes: The housing has a first slot extending along a first direction and a second slot extending along a second direction, the first direction being at an angle to the second direction, and the gastric tube being detachably disposed in the first slot and the second slot; A locking mechanism, comprising a first component and a second component, having a first state and a second state. In the first state, the first component presses against the gastric tube and fixes a first portion of the gastric tube in the first slot, while the second component presses against the gastric tube and fixes a second portion of the gastric tube in the second slot. In the second state, the first component and the second component respectively release the fixation of the gastric tube, allowing the gastric tube to detach from the first slot and the second slot.

[0004] The gastric tube assembly of this utility model includes a gastric tube and a locking device, wherein the locking device includes a housing and a locking mechanism. By receiving the gastric tube in a first slot and a second slot of the housing, and making the first slot and the second slot perpendicular, the gastric tube can be wrapped around and hung on the ear. At the same time, by providing a locking mechanism with a first component and a second component, the gastric tube can be effectively fixed to the housing, thereby achieving a locking and fixation of the gastric tube on the ear. This helps to prevent the gastric tube from falling off during patient movement and solves the safety hazards of existing gastric tube fixation methods.

[0005] In addition, the gastric tube assembly according to this utility model may also have the following additional technical features: In some embodiments of this utility model, the housing is provided with a receiving cavity, which is connected to the first slot and the second slot respectively. The first component is movably disposed in the receiving cavity, and one end of the first component is disposed outside the housing. The second component is disposed in the receiving cavity and is connected to the first component in a transmission manner.

[0006] In some embodiments of this utility model, the first direction is perpendicular to the second direction. Along the second direction, the first component includes a main body and a functional part arranged sequentially. The first end of the functional part along the third direction can protrude out of the receiving cavity and extend into the interior of the first slot. The second end of the functional part is connected to the second component in a transmission manner. The third direction is perpendicular to both the first direction and the second direction.

[0007] In some embodiments of this utility model, the second end of the functional part is provided with a first driving structure, the second component is movably disposed in the receiving cavity along the first direction, and one end of the second component can protrude out of the receiving cavity and extend into the interior of the second slot, and the other end of the second component is provided with a first transmission structure adapted to the first driving structure.

[0008] In some embodiments of this utility model, the locking mechanism further includes: A first elastic element is disposed in the receiving cavity and is disposed on the side of the second component away from the second slot. One end of the elastic element abuts against the second component, and the other end of the elastic element abuts against the housing. The first elastic member has a first compression state and a second compression state. In the first compression state, the first elastic member drives a portion of the second component to extend into the interior of the second slot, and the second component drives a portion of the first component to extend out of the housing. In the second compression state, the second component is housed inside the receiving cavity.

[0009] In some embodiments of this utility model, a receiving cavity is provided on the side of the housing, and the gastric tube assembly further includes a fixing member, which is detachably disposed in the receiving cavity, and the fixing member has a third slot, in which the gastric tube is detachably disposed.

[0010] In some embodiments of this utility model, the receiving cavity and the accommodating cavity are connected; the locking mechanism further includes: The third component is movably disposed in the receiving cavity along the first direction, and along the first direction, one end of the third component is provided with a second transmission structure that is drively connected to the first component, and the other end of the third component is provided with a first pushing part that extends into the receiving cavity; The second elastic member is disposed on the side of the third component away from the first component along the first direction, and the second elastic member has a first working state and a second working state. In the first working state, the third component is housed in the receiving cavity, and the third component drives a portion of the first component to protrude out of the housing. In the second working state, the first pushing part is inserted into the interior of the receiving cavity.

[0011] In some embodiments of this utility model, the distal end of the gastric tube is closed, and the proximal end of the gastric tube is provided with an opening. The outer wall of the gastric tube is provided with an inlet, and the inlet is closer to the distal end than the proximal end. The gastric tube has a first channel extending along its length, the length of which is the direction from the proximal end of the gastric tube to the distal end. A balloon is disposed on the outer wall of the gastric tube, the balloon is connected to the first channel, and the balloon is adjacent to the inlet.

[0012] In some embodiments of this utility model, the gastric tube has a second channel arranged along the length direction of the gastric tube, and a detection port is provided on the inner wall of the gastric tube. The detection port communicates with the second channel, and the detection port is spaced apart from the inlet along the length direction of the gastric tube. The second channel is provided with an indicator, which has a siphon material and a first pH indicator.

[0013] In some embodiments of this utility model, the inner wall of the gastric tube is provided with an inner detection area, the inner detection area is coated with a second pH indicator, and the inner detection area is closer to the proximal end than the distal end. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the gastric tube assembly shown in the embodiment of the present invention; Figure 2 for Figure 1 The diagram shown illustrates the structure of the gastric tube assembly during use. Figure 3 for Figure 1 A partial structural schematic diagram of the gastric tube assembly shown from another perspective; Figure 4 for Figure 3 A partial cross-sectional view of the gastric tube assembly shown in the AA direction; Figure 5 for Figure 3 A partial cross-sectional schematic diagram of the gastric tube assembly shown in the BB direction; Figure 6 for Figure 5 A partial cross-sectional schematic diagram of the gastric tube assembly shown in the CC direction; Figure 7 for Figure 1 The diagram shows the structure of the gastric tube. Figure 8 for Figure 1 A schematic diagram of the axial cross-section of the gastric tube shown; Figure 9 for Figure 7 A schematic diagram of the radial cross-section of the gastric tube shown; Figure 10 for Figure 8 The diagram shows a partial structural representation of the gastric tube.

[0015] The markings in the attached diagram are as follows: 100. Gastric tube assembly; 10. Gastric tube; 20. Locking device; 30. Gastric tube guidewire; 1. Gastric tube body; 11. Inlet; 12. First channel; 13. Detection port; 14. Second channel; 15. Balloon; 16. Internal detection area; 2. Housing; 21. First slot; 22. Second slot; 23. Receiving cavity; 24. Receiving cavity; 25. Guide post; 3. First component; 31. Main body; 32. Actuating part; 33. First driving structure; 331. First pushing surface; 34. Second driving structure; 341. Third pushing surface; 4. Second component; 41. First transmission structure; 411. Second pushing surface; 42. Guide hole; 5. Third component; 51. Second transmission structure; 511. Fourth pushing surface; 52. First pushing part; 53. Second pushing part; 6. First elastic element; 7. Second elastic element; 8. Fastener; 81. Third slot. Detailed Implementation

[0016] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0017] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0018] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0019] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0020] To more clearly describe the structure of this application, the terms "proximal" and "distal" are used herein as conventional terms in the field of interventional medicine. Specifically, "distal" refers to the end furthest from the operator during the surgical procedure, "proximal" refers to the end closest to the operator during the surgical procedure, "axial" refers to its length direction, and "radial" refers to the direction perpendicular to the "axial".

[0021] This utility model provides a gastric tube assembly 100 that can wrap around and lock the gastric tube 10 to the ear, thereby solving the problem of safety hazards in the fixed placement of the existing gastric tube 10.

[0022] In terms of overall design, the gastric tube assembly 100 includes a gastric tube 10 and a locking device 20, wherein the locking device 20 includes a housing 2 and a locking mechanism. The housing 2 has a first slot 21 extending along a first direction a and a second slot 22 extending along a second direction b, the first direction a and the second direction b being angled together, and the gastric tube 10 being detachably disposed in the first slot 21 and the second slot 22. The locking mechanism includes a first component 3 and a second component 4, and the locking mechanism has a first state and a second state. In the first state, the first component 3 presses against the gastric tube 10 and fixes the first part of the gastric tube 10 in the first slot 21, and the second component 4 presses against the gastric tube 10 and fixes the second part of the gastric tube 10 in the second slot 22; in the second state, the first component 3 and the second component 4 respectively release the fixation of the gastric tube 10, so that the gastric tube 10 can be disengaged from the first slot 21 and the second slot 22.

[0023] Specifically, by housing the gastric tube 10 in the first slot 21 and the second slot 22 of the housing 2 and making the first slot 21 and the second slot 22 perpendicular, the gastric tube 10 can be wrapped around and hung on the ear. At the same time, by setting a locking mechanism with a first component 3 and a second component 4, the gastric tube 10 can be effectively fixed to the housing 2, thereby realizing the locking and fixing of the gastric tube 10 on the ear. This helps to prevent the gastric tube 10 from falling off during the patient's movement and solves the problem of safety hazards in the existing fixed placement of the gastric tube 10.

[0024] It should be understood that the gastric tube assembly 100 includes a gastric tube 10 and a locking device 20, wherein the gastric tube 10 can be an existing gastric tube 10, such as... Figures 1-6As shown, the locking device 20 includes a housing 2 and a locking mechanism. In this embodiment, the housing 2 has a square structure. A first slot 21 and a second slot 22 are respectively provided on two adjacent sides of the housing 2. The first slot 21 extends along a first direction a, and its opposite ends communicate with the two adjacent sides. The second slot 22 extends along a second direction b, and its opposite ends communicate with the two adjacent sides. The first direction a and the second direction b are at an angle. Optionally, the first direction a and the second direction b are perpendicular.

[0025] It should be noted that the gastric tube 10 has a circular tube structure, and the inner wall of the first slot 21 is adapted to the outer peripheral surface of the existing gastric tube 10 to ensure that the gastric tube 10 can disengage from the first slot 21 in a direction perpendicular to the first direction a and in a direction perpendicular to the side with the first slot 21. Correspondingly, the structure of the second slot 22 is the same as that of the first slot 21.

[0026] Still Figures 1-6 As shown, the housing 2 is equipped with a locking mechanism, which includes a first component 3 and a second component 4. The locking mechanism has a first state and a second state. In the first state, the first component 3 presses against the gastric tube 10 and fixes a portion of the gastric tube 10 in the first slot 21. Simultaneously, the second component 4 also presses against the gastric tube 10 and fixes a portion of the gastric tube 10 in the second slot 22. In the second state, the first component 3 and the second component 4 release the fixation of the gastric tube 10 under external force, allowing the gastric tube 10 to disengage from the first slot 21 and the second slot 22, i.e., the gastric tube 10 disengages from the locking device 20.

[0027] It should be noted that when the locking mechanism is in the second state, the first component 3 and the second component 4 can release the fixation of the gastric tube 10 under the action of external force, or one of the first component 3 and the second component 4 is subjected to external force and releases the fixation of the gastric tube 10. At the same time, due to the cooperative connection of the first component 3 and the second component 4, the second component 4 releases the fixation of the gastric tube 10 under the movement of the first component 3.

[0028] What needs further understanding is, such as Figures 1-6As shown, the housing 2 has an internal receiving cavity 23. Optionally, the housing 2 includes a first housing 2 (not shown) and a second housing 2 (not shown). The first housing 2 has a receiving groove, and along the first direction a, the second housing 2 is disposed on one side of the first housing 2 and can block the receiving groove to form a receiving cavity 24. The receiving cavity 23 communicates with the first slot 21 and the second slot 22, respectively. Moreover, the first component 3 is movably disposed in the receiving cavity 23, with one end of the first component 3 disposed outside the housing 2 for hand operation by a user, and the other end of the first component 3 disposed in the receiving cavity 23.

[0029] Specifically, when the locking mechanism is in the first state, the first component 3 fixes a portion of the gastric tube 10 in the first slot 21, and the second component 4 fixes a portion of the gastric tube 10 in the second slot 22. When the locking mechanism transitions from the first state to the second state, the portion of the first component 3 located outside the housing 2 is subjected to an external force, causing the first component 3 to move within the receiving cavity 23 and the portion of the first component 3 located in the first slot 21 to be received into the receiving cavity 24. At this time, due to the transmission connection between the first component 3 and the second component 4, the second component 4 moves along with the first component 3, so that the portion of the second component 4 located in the second slot 22 is received into the receiving cavity 24. By setting a transmission connection between the second component 4 and the first component 3, the structure of the locking device 20 is simplified, and the effectiveness of switching between the first and second states is ensured.

[0030] like Figures 1-3 As shown, the first component 3 is movably disposed on the housing 2 along a third direction c, wherein the first direction a is perpendicular to the second direction b, and the third direction c is perpendicular to both the first direction a and the second direction b. Simultaneously, along the second direction b, the first component 3 includes a main body 31 and an actuating part 32 arranged sequentially. In this embodiment, the main body 31 is configured as a circular structure or a square column structure, without further limitation. The actuating part 32 is a plate-like structure, and one end of the actuating part 32 is connected to the main body 31 along the second direction b. Optionally, the main body 31 and the actuating part are integrally formed.

[0031] In this embodiment, along the third direction c, the actuating part 32 has a first end and a second end. The first end protrudes from the receiving cavity 23 and extends into the interior of the first slot 21, and the end face of the first end is adapted to the outer peripheral surface of the gastric tube 10. The second end of the actuating part 32 is provided with a first driving structure 33. Meanwhile, along the first direction a, a second component 4 is movably disposed in the receiving cavity 23, and one end of the second component 4 protrudes from the receiving cavity 23 and extends into the interior of the second slot 22. The other end of the second component 4 is provided with a first transmission structure 41 adapted to the first driving structure 33. Optionally, the first driving structure 33 is configured as a columnar structure, and the first driving structure 33 has an inclined first pushing surface 331, that is, the first pushing surface 331 is set at an acute angle to the third direction c and at an acute angle to the first direction a. The first transmission structure 41 is configured as a groove, and the groove has an inclined second pushing surface 411. The first pushing surface 331 and the second pushing surface 411 are parallel and abut against each other. With this configuration, when the actuating part 32 moves along the third direction c with the main body 31, the first driving structure 33 will be inserted into the first transmission structure 41 under the action of the first pushing surface 331 and the second pushing surface 411, and the second component 4 will move along the first direction a, thereby realizing that the part of the second component 4 located in the second slot 22 enters the receiving cavity 24.

[0032] Furthermore, the locking device 20 also includes a first elastic element 6, which is disposed in the receiving cavity 23 and on the side of the second component 4 opposite to the second slot 22. One end of the elastic element abuts against the second component 4, and the other end of the elastic element abuts against the housing 2. The first elastic element 6 has a first compressed state and a second compressed state. In the first compressed state, the first elastic element 6 drives a portion of the second component 4 into the interior of the second slot 22, and the second component 4 drives a portion of the first component 3 out of the housing 2. In the second compressed state, the second component 4 is housed inside the receiving cavity 23.

[0033] Specifically, by providing a first elastic element 6, the first elastic element 6 can act on the second component 4, and through the transmission connection between the first component 3 and the second component 4, the first component 3 can be restored to its initial position without external force. In other words, the locking mechanism can transition from a first state to a second state under external force, and the provision of the first elastic element 6 enables the locking mechanism to return from the second state to the first state. The provision of the first elastic element 6 helps improve the effectiveness of the locking device 20.

[0034] It is necessary to understand that, such as Figure 4 and Figure 5As shown, the second component 4 is provided with a guide hole 42, and the housing 2 is provided with a guide post 25, which is adapted to the guide hole 42. In this embodiment, the first elastic member 6 is a spring, and the spring is sleeved on the guide post 25. One end of the spring abuts against the second component 4, and the other end of the spring abuts against the housing 2. Optionally, the first elastic member 6 has a first compression state and a second compression state. When the locking device 20 is in the first state, the first elastic member 6 is in the first compression state. At this time, the first elastic member 6 drives part of the second component 4 to penetrate into the interior of the second slot 22. When the locking device 20 is in the second state, the second component 4 moves along the first direction a due to the movement of the first component 3, thereby causing the first compression state to enter the second compression state. At this time, the second component 4 is housed inside the receiving cavity 23. With this arrangement, the guide post 25 and the guide hole 42 can further ensure the accuracy of the movement of the second component 4. At the same time, the guide post 25 can provide a mounting base for the spring.

[0035] It should be noted that the first elastic element 6 can be configured as a spring, or other structures such as a compression spring or a sheet spring. The first elastic element 6 can be configured to act on the second component 4 and have the force to drive the second component 4 to move along the first direction a.

[0036] Furthermore, a receiving cavity 24 is provided on the side of the housing 2, and the gastric tube assembly 100 also includes a fixing member 8, which is detachably disposed in the receiving cavity 24, and the fixing member 8 has a third slot 81, in which the gastric tube 10 is detachably disposed.

[0037] Specifically, by providing a receiving cavity 24, it is possible to receive or connect with the fixing member 8, thereby improving the ease of installation of the fixing member 8. At the same time, a third slot 81 is provided on the fixing member 8, which enables the detachable connection between the gastric tube 10 and the fixing member 8, and thus can serve as an identifier for determining the length or position of the gastric tube 10.

[0038] It should be understood that a receiving cavity 24 is provided on one side of the housing 2, and a fixing member 8 is detachably disposed in the receiving cavity 24. Optionally, the fixing member 8 is made of rubber. In this case, the structural characteristics of the rubber material can be used to effectively install the fixing member 8 into the receiving cavity 24. In this embodiment, the cross-section of the receiving cavity 24 is a "T" shaped structure, and the fixing member 8 accordingly has a mounting part adapted to the receiving cavity 24, and a third slot 81 for installing the gastric tube 10. The structure of the third slot 81 is the same as that of the first slot 21 described above, and will not be described in detail here. At the same time, the extension direction of the third slot 81 is the same as that of the first slot 21 described above.

[0039] It needs to be further understood that the receiving cavity 24 and the receiving cavity 23 are connected. The locking mechanism also includes a third component 5 and a second elastic element 7. The third component 5 is movably disposed in the receiving cavity 23 along a first direction a, and along the first direction a, one end of the third component 5 is provided with a second transmission structure 51 that is drively connected to the first component 3, and the other end of the third component 5 is provided with a first pushing part 52 that extends into the receiving cavity 24. In this embodiment, a second driving structure 34 is provided on the side of the first component 3 facing the third component 5, and the second driving structure 34 is adapted to be connected to the second transmission structure 51. Optionally, the second driving structure 34 is a groove structure, and the second driving structure 34 has an inclined third pushing surface 341, which is perpendicular to the first direction a and perpendicular to the third direction c. Meanwhile, the second transmission structure 51 is a columnar structure, and the second transmission structure 51 has a fourth pushing surface 511, which is parallel to and abuts against the third pushing surface 341.

[0040] like Figure 4 As shown, the first pushing part 52 is configured as a columnar structure, and the second elastic member 7 is configured as a spring structure. The second elastic member 7 is sleeved on the first pushing part 52, with one end of the second elastic member 7 abutting against the third component 5 and the other end of the second elastic member 7 abutting against the housing 2. Accordingly, the second elastic member 7 has a first working state and a second working state. When the locking device 20 is in the first state, the second elastic member 7 is in the first working state, and the second transmission structure 51 is inserted inside the second drive structure 34. At this time, the first pushing part 52 is housed in the receiving cavity 23, and due to the arrangement of the second drive structure 34 and the second transmission structure 51, the third component 5 drives a portion of the first component 3 to protrude out of the housing 2. When the locking device 20 moves from the first state to the second state, the third component 5 moves along the first direction a due to the movement of the first component 3, thereby causing the second elastic member 7 to move from the first working state to the second working state. At this time, due to the arrangement of the second drive structure 34 and the second transmission structure 51, the first pushing part 52 of the third component 5 can be inserted into the receiving cavity 24 by the movement of the first component 3.

[0041] In some embodiments of this application, a second pushing part 53 is provided on the third component 5. Optionally, the second pushing part 53 is disposed on one side of the third component 5 along the first direction a, and the second pushing part 53 is configured as an inclined slope structure. The second pushing part 53 is perpendicular to both the first direction a and the third direction c. At the same time, when the locking device 20 enters the second state from the first state, the third component 5 moves along the first direction a due to the movement of the first component 3. At this time, the second pushing part 53 will be inserted into the second slot 22 as the third component 5 moves. At this time, the second pushing part 53 and the opening of the second slot 22 are arranged opposite to each other along the first direction a. By configuring the second pushing part 53 as an inclined slope structure, and since the second component 4 is released from locking the gastric tube 10 at this time, it helps to drive the gastric tube 10 toward the opening of the second slot 22, thereby improving the convenience of detaching the gastric tube 10 from the housing 2.

[0042] What needs further understanding is, such as Figure 1 , Figure 2 , Figures 7 to 10 As shown, the gastric tube 10 has a distal end and a proximal end. The distal end of the gastric tube 10 is closed, while the proximal end has an opening. An inlet 11 is provided on the outer wall of the gastric tube 10, and the inlet 11 is closer to the distal end than the proximal end. The gastric tube 10 has a first channel 12 extending along its length. A balloon 15 is provided on the outer wall of the gastric tube 10, communicating with the first channel 12, and is adjacent to the inlet 11. Optionally, the distance between the inlet 11 and the distal end of the gastric tube 10 is less than 3.0 cm. In this embodiment, there are multiple inlets 11, and these multiple inlets 11 are spaced apart along the length of the gastric tube 10 (the direction from the proximal end of the gastric tube 10 to the distal end of the gastric tube 10). Furthermore, the balloon 15 is positioned between two adjacent inlets 11. By providing inlets 11 and balloon 15 on the side wall of the gastric tube 10, the structure of the balloon 15 helps to ensure that the inlets 11 and the gastric wall are spaced apart, thereby ensuring the continuous output of gastric juice and the effectiveness of nutrient solution input.

[0043] Furthermore, the gastric tube 10 has a second channel 14 arranged along the length of the gastric tube 10, and a detection port 13 is provided on the inner wall of the gastric tube 10. The detection port 13 is connected to the second channel 14. Along the length of the gastric tube 10, the detection port 13 and the inlet 11 are spaced apart. An indicator is provided inside the second channel 14. The indicator has a siphon material and a first pH indicator.

[0044] Specifically, when a patient needs to be treated, medical staff gradually insert the gastric tube 10 into the patient's stomach from its distal end. When the end of the indicator near the distal end of the gastric tube 10 comes into contact with the gastric juice that has entered the gastric tube 10, the gastric juice will extend from the indicator to the proximal end of the gastric tube 10 by the siphon effect of the indicator, until the gastric juice extends from the indicator to the outside of the patient. Based on the first pH indicator contained in the indicator, the indicator will indicate its pH value by changing color. Thus, it is possible to determine whether the distal end of the gastric tube 10 has reached the stomach by observing the color of the indicator outside the body. This effectively improves the efficiency of determining whether the gastric tube 10 has reached the stomach, saves manpower, simplifies the operation process, and improves the accuracy of the judgment result.

[0045] It should be understood that the gastric tube 10 has a second channel 14 arranged along its length. A detection port 13 is provided on the inner wall of the gastric tube 10, communicating with the second channel 14 to allow gastric fluid entering the gastric tube 10 through the inlet 11 to pass through the detection port 13. Furthermore, the detection port 13 is spaced apart from the inlet 11 along the length of the gastric tube 10, meaning there is a certain distance between the detection port 13 and the distal end. An indicator is provided inside the second channel 14, and the indicator has a siphon material and a first pH indicator.

[0046] Furthermore, the distance between the indicator and the distal end is 4.5-5.5 cm. By setting the starting end of the indicator at this location, better identification can be achieved after the gastric tube 10 accurately reaches the stomach. Optionally, the distance between the indicator and the distal end is set to 5.0 cm. In this embodiment, as... Figure 7 As shown, the indicator extends to the proximal end, making it convenient for medical staff to observe the color development results of the indicator when treating different patients.

[0047] In this embodiment, the indicator may specifically adopt a long, thin strip structure, be made of a siphon material, and contain a first pH indicator. The siphon material includes, but is not limited to, materials with good siphon properties such as hydrophilic siphon membranes. The hydrophilic siphon membrane may be formed by coating the surface with the first pH indicator or by uniformly dispersing and combining the first pH indicator within and on the surface.

[0048] It should be noted that the first pH indicator on the indicator can be set only on the set interval length of the indicator, and the set interval length is located on one side of the proximal end of the gastric tube 10. That is, the part of the indicator near the distal end of the gastric tube 10 is inserted into the patient's stomach and is in a state that cannot be observed. This part of the length mainly serves to siphon gastric juice to effectively deliver it to the set interval length for color development.

[0049] Furthermore, the inner wall of the gastric tube 10 is provided with an inner detection area 16, which is coated with a second pH indicator, and the inner detection area 16 is closer to the proximal end than the distal end.

[0050] like Figure 8 As shown, when the gastric tube 10 is determined to have reached the stomach by the indicator, when gastric juice is aspirated through the gastric tube 10, the color of the second pH indicator coated in the inner detection area 16 changes when the gastric juice passes through this area. By observing the color change, the pH value is indicated, thereby confirming that the gastric tube 10 has reached the stomach, and further improving the accuracy of the results.

[0051] It should be further understood that the distance between the center of the internal detection area 16 and the distal end of the gastric tube 10 is 44-46 cm, and the length of the internal detection area 16 is 14-16 cm. Optionally, preferably, the length of the internal detection area 16 is 15 cm.

[0052] In addition, such as Figure 7 and Figure 8 As shown, the gastric tube 10 also includes a gastric tube guidewire 30, which is arranged inside the gastric tube 10 along the length of the gastric tube 10. The surface of the gastric tube guidewire 30 near the distal end of the gastric tube 10 is coated with a second pH indicator.

[0053] Once the gastric tube 10 has reached the stomach, the second pH indicator changes color after the gastric tube guidewire 30 comes into contact with the gastric juice. The gastric tube guidewire 30 can be pulled out and the pH value can be indicated by observing the color change, which can further confirm that the gastric tube 10 has reached the stomach.

[0054] This invention employs two or more testing methods to meet the needs of different clinical situations, and the test results are more accurate and reliable, greatly avoiding the occurrence of errors.

[0055] In some embodiments of this invention, the second pH indicator is preferably a reagent that exhibits a significant color change and is non-toxic and harmless to the human body. Furthermore, the first and second pH indicators can be the same pH indicator or different pH indicators; no restrictions are placed here.

[0056] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A gastric tube assembly, characterized in that, Includes a gastric tube and a locking device, the locking device comprising: The housing has a first slot extending along a first direction and a second slot extending along a second direction, the first direction being at an angle to the second direction, and the gastric tube being detachably disposed in the first slot and the second slot; A locking mechanism, comprising a first component and a second component, having a first state and a second state. In the first state, the first component presses against the gastric tube and fixes a first portion of the gastric tube in the first slot, while the second component presses against the gastric tube and fixes a second portion of the gastric tube in the second slot. In the second state, the first component and the second component respectively release the fixation of the gastric tube, allowing the gastric tube to detach from the first slot and the second slot.

2. The gastric tube assembly according to claim 1, characterized in that, The housing has an internal receiving cavity that communicates with the first slot and the second slot respectively. The first component is movably disposed in the receiving cavity, with one end of the first component disposed outside the housing. The second component is disposed in the receiving cavity and is connected to the first component in a transmission manner.

3. The gastric tube assembly according to claim 2, characterized in that, The first direction is perpendicular to the second direction. Along the second direction, the first component includes a main body and a functional part arranged sequentially. The first end of the functional part along the third direction can protrude out of the receiving cavity and extend into the interior of the first slot. The second end of the functional part is connected to the second component in a transmission manner. The third direction is perpendicular to both the first direction and the second direction.

4. The gastric tube assembly according to claim 3, characterized in that, The second end of the functional part is provided with a first driving structure. Along the first direction, the second component is movably disposed in the receiving cavity, and one end of the second component can protrude out of the receiving cavity and extend into the interior of the second slot. The other end of the second component is provided with a first transmission structure adapted to the first driving structure.

5. The gastric tube assembly according to claim 4, characterized in that, The locking mechanism further includes: A first elastic element is disposed in the receiving cavity and is disposed on the side of the second component away from the second slot. One end of the elastic element abuts against the second component, and the other end of the elastic element abuts against the housing. The first elastic member has a first compression state and a second compression state. In the first compression state, the first elastic member drives a portion of the second component to extend into the interior of the second slot, and the second component drives a portion of the first component to extend out of the housing. In the second compression state, the second component is housed inside the receiving cavity.

6. The gastric tube assembly according to claim 3, characterized in that, The housing has a receiving cavity on its side. The gastric tube assembly also includes a fixing member, which is detachably disposed in the receiving cavity and has a third slot in which the gastric tube is detachably disposed.

7. The gastric tube assembly according to claim 6, characterized in that, The receiving cavity is connected to the accommodating cavity; the locking mechanism further includes: The third component is movably disposed in the receiving cavity along the first direction, and along the first direction, one end of the third component is provided with a second transmission structure that is drively connected to the first component, and the other end of the third component is provided with a first pushing part that extends into the receiving cavity; The second elastic member is disposed on the side of the third component away from the first component along the first direction, and the second elastic member has a first working state and a second working state. In the first working state, the third component is housed in the receiving cavity, and the third component drives a portion of the first component to protrude out of the housing. In the second working state, the first pushing part is inserted into the interior of the receiving cavity.

8. The gastric tube assembly according to claim 1, characterized in that, The distal end of the gastric tube is closed, and the proximal end of the gastric tube has an opening. The outer wall of the gastric tube has an inlet, and the inlet is closer to the distal end than the proximal end. The gastric tube has a first channel extending along its length, the length of which is the direction from the proximal end of the gastric tube to the distal end. A balloon is disposed on the outer wall of the gastric tube, the balloon is connected to the first channel, and the balloon is adjacent to the inlet.

9. The gastric tube assembly according to claim 8, characterized in that, The gastric tube has a second channel arranged along the length of the gastric tube, and a detection port is provided on the inner wall of the gastric tube. The detection port is connected to the second channel, and the detection port is spaced apart from the inlet along the length of the gastric tube. The second channel is provided with an indicator, which has a siphon material and a first pH indicator.

10. The gastric tube assembly according to claim 9, characterized in that, The inner wall of the gastric tube is provided with an internal detection area, which is coated with a second pH indicator, and the internal detection area is closer to the proximal end than the distal end.

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