Feeding tube with visual multi-direction guiding function

Abstract

A kind of feeding tube with visual and multi-direction guiding function simultaneously, it includes a catheter assembly, a guide wire assembly.The catheter assembly includes a tube body, the guide wire assembly includes a guide wire, a guiding assembly, a visual unit and a control assembly.The guiding assembly includes a rotating base, a swing base, a swing head, a pulling traction line, a driving gear and a rotating drive line.The control assembly includes a swing drive knob and a rotating drive assembly.The swing drive knob can control the swing head to swing left and right, and the rotating drive assembly can control the swing head to rotate in a circle.Thereby, the feeding tube can be navigated and adjusted in the process of inserting into the human body cavity, the whole clinical insertion operation is accelerated and optimized, the tissue image of insertion process and terminal position is shot, and the related internal cavity tissue can be simply observed for clinical analysis.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary medical devices, in particular to a feeding tube with visual function and multi-direction guiding function. BACKGROUND

[0002] The feeding tube refers to a tube which is inserted into a specific part of the human body through the nasal cavity, skin or other channels, and can deliver nutrient solution or medicine to patients who cannot eat actively, so as to maintain the life characteristics or assist in treatment, and can also be used for sampling in the human body. According to the clinical needs, the feeding tube can also be used for other purposes, but at present, it mainly has the above two functions.

[0003] In the prior art, the feeding tube has visual and steering functions, but the steering function mainly relies on a snake bone device arranged at the tail end of a guide wire to complete the steering. The snake bone device utilizes the flexible and easy-to-bend characteristics of the snake bone to complete the steering. However, in actual use, the operation of the snake bone is not simple, and it is difficult to steer to the desired direction at one time, or in other words, it is difficult to accurately steer the snake bone to the desired direction at one time. Multiple steering operations are extremely easy to damage the human tissue, causing certain harm and discomfort to the patient. SUMMARY

[0004] In view of the above situation, the present application provides a feeding tube with visual function and guiding function.

[0005] The feeding tube with visual function and multi-direction guiding function comprises a catheter assembly and a guide wire assembly inserted in the catheter assembly. The catheter assembly comprises a tube body. The guide wire assembly comprises a guide wire inserted in the tube body, a guiding assembly arranged at one end of the guide wire, a visual unit arranged on the guiding assembly, and a control assembly arranged at the other end of the guide wire. The guiding assembly comprises a rotating base rotatably sleeved on one end of the guide wire, a swing base fixed on the rotating base, a swing head movably arranged on the swing base, a pulling traction line arranged on the swing head, a driving gear for driving the rotating base, and a rotating driving line arranged in the guide wire and used for driving the driving gear. The visual unit is fixedly arranged on the swing head. The control assembly comprises a swing driving knob and a rotating driving assembly. The swing driving knob is connected with the pulling traction line, and when the swing driving knob rotates back and forth, the swing head swings left and right. The rotating driving assembly drives the rotating driving line to rotate and drives the driving gear to rotate when the rotating driving line rotates, and drives the rotating base to rotate when the driving gear rotates, and drives the swing base to rotate and further drives the swing head to rotate.

[0006] Further, one end of the rotating base is partially hollow and comprises a body, an inner ring gear arranged at one end of the body and engaged with the driving gear, and a U-shaped support arranged at the other end of the body, and the swinging base is fixed to the U-shaped support.

[0007] Further, the driving gear is engaged with the inner ring gear, and one end of the driving gear is fixedly connected with the rotating driving wire.

[0008] Further, the swinging base comprises a base body, two pulley accommodating grooves arranged at two sides of the base body respectively, two sets of pulley assemblies arranged in the pulley accommodating grooves respectively, and a swinging support arranged on the base body.

[0009] Further, each set of the pulley assemblies comprises two axles arranged in a staggered manner, and two pulleys pivotally connected to the axles respectively, and the arrangement direction of the central axes of the two axles forms an acute angle with the axial direction of the body.

[0010] Further, the swinging head comprises a swinging body rotatably arranged on the swinging support, a positioning wheel arranged at one side of the swinging body, and a pulling rod arranged on the positioning wheel.

[0011] Further, the positioning wheel is fixedly connected with the swinging body, and the wheel rim of the positioning wheel is provided with a notch matched with the pulling rod, and the pulling rod is inserted into the notch and fixed to the swinging body.

[0012] Further, one end of the rotating driving wire is fixedly connected with the driving gear, and the other end is in the form of a bevel gear and is coupled with the rotating driving assembly, and the rotating driving assembly comprises a rotating knob, a transfer gear rod coupled with the rotating knob, and a transfer gear rod accommodating groove for accommodating the transfer gear rod.

[0013] Further, one end of the rotating knob is provided with bevel gear teeth for engaging with one end of the transfer gear rod, and the transfer gear rod is arranged in the transfer gear rod accommodating groove, and both ends of the transfer gear rod are provided with bevel gear teeth coupled with the bevel gear teeth of the rotating knob and the bevel gear teeth of the driving wire respectively.

[0014] Compared with the prior art, the feeding tube with visual and guiding functions provided by the application has the guiding assembly, which comprises the rotating base, the swinging base, the swinging head, the control assembly, and the visual unit. Meanwhile, the control assembly comprises the swinging drive knob and the rotating drive assembly. When the swinging drive knob is rotated, the swinging head drives the visual unit to swing left and right or forward and backward. When the rotating drive assembly is rotated, the rotating base drives the swinging head and the visual unit to rotate by 360 degrees, so that the visual unit can move within a half-sphere visual angle, thereby enabling navigation and posture adjustment during insertion of the feeding tube into the human body cavity, improving the intubation speed and success rate, thereby accelerating and optimizing the entire clinical insertion operation, greatly reducing the insertion difficulty of the doctor, and confirming the accuracy of insertion, while shooting the tissue image of the insertion process and the terminal position, enabling simple medical observation of the relevant internal cavity tissue for clinical analysis. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure.

[0016] Figure 2 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure. Figure 1

[0017] The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure. Figure 3 Figure 1 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure.

[0018] Figure 4 Figure 1 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure.

[0019] Figure 5 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure. Figure 1

[0020] The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure. Figure 6 Figure 1 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure.

[0021] Figure 7 Figure 1 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure.

[0022] Figure 8 The feeding tube with visual and multi-directional guiding functions provided by the application has the structure shown in the figure. Figure 1 ​​​​a control assembly of the visual feeding tube with a guiding function. DETAILED DESCRIPTION

[0023] The specific implementation of the present application is further described in detail below. It should be understood that the implementation of the present application described herein is not intended to limit the scope of protection of the present application.

[0024] As shown in Figures 1 to 8 is a structural schematic diagram of a visual feeding tube with a multi-directional guiding function provided by the present application. The visual feeding tube with a guiding function comprises a catheter assembly 10 and a guide wire assembly 20 inserted in the catheter assembly 10. It is conceivable that the visual feeding tube with a guiding function also comprises some other assemblies, such as a mounting assembly, an electrical connection assembly, a display assembly, etc., which are known to those skilled in the art and will not be described here.

[0025] The catheter assembly 10 comprises a tube body 11, a port member 12 arranged at one end of the tube body 11, and a balloon fixing portion 13 located at the other end of the tube body 11. The tube body 11 can be made of rubber or plastic, and its length and diameter can be set according to actual needs, which will not be described here. The tube body 11 has a tube head 111 and a feeding hole 112 arranged on the tube head 111. The tube head 111 is of a conical structure for easy insertion. It is conceivable that, in order to strengthen the strength of the tube body 11 in the diameter direction, the inside of the tube body 11 can be compounded with a spring reinforcing member made of metal (not shown in the figure). The feeding hole 112 is used for the outflow of the injected nutrient solution. Because the esophagus or intestinal tract may not be lubricated enough during insertion, and the guide wire assembly 20 is also inserted in the tube body 11 during insertion, lubricating liquid can be added during insertion as necessary to facilitate insertion. The port member 12 is provided with two capped input ports for the input of nutrient solution and the cleaning of the feeding tube, respectively, which is prior art and will not be described here. The balloon fixing portion 13 is sleeved on the tube body 11, and inflates and swells when the tube head 111 is inserted into the appropriate position of the human body, for fixing the position of the tube head 111.

[0026] Because the length of the tube body 11 is relatively long and the overall flexibility is relatively high, the tube body 11 will deform during insertion, resulting in unsmooth insertion or convolution in the cavity for a long time. Therefore, the guide wire assembly 20 is needed to improve the axial strength of the tube body 11. The guide wire assembly 20 comprises a guide wire 21, a guide assembly 22 arranged at one end of the guide wire 21, a visual unit 23 arranged on the guide assembly 22, and a control assembly 24 arranged at the other end of the guide wire 21.

[0027] The guide wire 21 can be made of hard or flexible material, such as hard plastic or flexible metal, and can be hollow to accommodate power lines or signal lines (not shown) of the visual unit 23 and other functional modules.

[0028] The guide assembly 22 includes a rotating base 221 rotatably arranged at one end of the guide wire 21, a swing base 222 fixedly arranged on the rotating base 221, a swing head 223 movably arranged on the swing base 222, a pulling traction line 224 arranged on the swing head 223, a driving gear 225 for driving the rotating base 221 to rotate, and a rotating driving line 226 arranged in the guide wire 21 and used for driving the driving gear 225 to rotate.

[0029] The rotating base 221 is sleeved on the end of the guide wire 21 and has a partial hollow structure, and includes a body 2211, an inner ring gear 2212 arranged at one end of the body 2211 and engaged with the driving gear 225, and a U-shaped bracket 2213 arranged at the other end of the body 2211. The hollow structure at one end of the body 2211 is used for arranging the inner ring gear 2212. The inner ring gear 2212 is used for engaging with the driving gear 225 and is arranged on the inner side wall of the hollow structure of the body 2211, and includes a plurality of teeth (not labeled) arranged along the axial direction of the body 2211. The U-shaped bracket 2213 is used for supporting the swing base 222. The U-shaped bracket 2213 is arranged in a direction perpendicular to the axial direction of the body 2211, so that the swing head 223 can swing left and right with the axial direction of the body 2211 as the symmetric axis under the driving of the pulling traction line 224. The rotating base 221 is sleeved on the end of the guide wire 21, and the rotating base 221 is arranged in the pipe body 11, so that the rotating base 221 can be prevented from falling off in the radial direction. In addition, since the pulling traction line 224 is always pulling the swing head 223, the swing head 223 is rotatably fixed on the swing base 222, and the swing base 222 is fixed on the rotating base 221, so that the position relationship between the rotating base 221 and the guide wire 21 in the axial direction can be fixed, and the rotating base 221 can be prevented from falling off from the guide wire 21.

[0030] The swing base 222 is fixedly arranged on the U-shaped support 2213 of the rotating base 221, one end of which is connected with the rotating base 221, and the other end is used for arranging the swing head 223, so that the rotating base 221, the swing base 222 and the swing head 223 are connected together. The swing base 222 comprises a base body 2221 fixedly arranged on the U-shaped support 2213, two pulley accommodating grooves 2222 opened on both sides of the base body 2221 connected with the rotating base 221, two groups of pulley assemblies 2223 arranged in the pulley accommodating grooves 2222, and a swing support 2224 arranged on the base body 2221. The pulley accommodating groove 2222 is used for accommodating the pulley assembly 2223, so that the pulley assembly 2223 can be accommodated in the U-shaped support 2213. Each group of pulley assemblies 2223 comprises two axles 22231 arranged at intervals and staggered, and two pulleys 22232 respectively pivoted on the axles 22231. The arrangement direction of the central axes of the two axles 22231 and the axial direction of the body 2211 have an acute angle. The two axles 22231 are fixed on the U-shaped support 2213, so as to fix the swing base 222, and the pulleys 22232 are clamped between the pulley accommodating groove 2222 and the U-shaped support 2213. The pulling traction line 224 is arranged between the two pulleys 22232 of the pulley assembly 2223, so that the two pulleys 22232 can play a role of regulating the position and tension of the pulling traction line 224. The swing support 2224 is a U-shaped structure, and a U-shaped slot is opened in the vertical line direction of the plane of the pulley accommodating groove 2222, so that the swing head 223 can swing forward and backward in the slot.

[0031] The swing head 223 comprises a swing body 2231 arranged on the swing base 222, a positioning wheel 2232 arranged on one side of the swing body 2231, and a pulling rod 2233 arranged on the positioning wheel 2232. The swing body 2231 is provided with a U-shaped groove on one side of the swing base 222 in the axial direction, so that the contact point of the swing body 2231 with the guide wire 21 is reduced when the swing body 2231 swings along the opening direction of the U-shaped groove, and the swing is more flexible and labor-saving. The positioning wheel 2232 is fixedly connected with the swing body 2231, and the wheel is provided with a notch matched with the pulling rod 2233. The positioning wheel 2232 is used to guide the pulling traction line 224 to be divided into two sides along the wheel, so as to realize the left and right pulling of the swing head 223. One end of the pulling rod 2233 is fixedly inserted with the swing body 2231, and the pulling rod 2233 is buckled on the notch of the positioning wheel 2232. The notch is located on the plane of the central axis of the body 2211, and is located at the position where the distance between the positioning wheel 2232 and the visual unit 23 is the smallest. In the part where the pulling rod 2233 intersects with the positioning wheel 2232, a hole for fixedly connecting or penetrating the pulling traction line 224 is arranged on the pulling rod 2233. When the pulling traction line 224 is stressed, the pulling rod 2233 is pulled, and the swing body is driven to swing forward and backward along the wheel direction of the positioning wheel 2232.

[0032] The pulling traction line 224 is used to pull the swing head 223 to swing forward and backward, one end of which is fixedly connected with the pulling rod 2233, and the other end is connected with the control assembly 24, so that the control assembly 24 can pull the pulling traction line 224. The pulling traction line 224 can be made of flexible and wear-resistant materials, such as nylon materials, carbon materials, etc. At the same time, the pulling traction line 224 is movably penetrated in the guide wire 21.

[0033] The driving gear 225 is arranged inside the inner ring gear 2212 of the rotating base 221 and is engaged with the inner ring gear 2212, and one end thereof is fixedly connected with the rotating driving wire 226. The rotating driving wire 226 is movably arranged in the guide wire 21, so that the driving gear 225 is arranged on the guide wire 21. When the driving gear 225 rotates, the rotating base 221 can be driven to rotate, and the swing base 222 and the swing head 223 are driven to rotate together, so that the visual unit 23 is driven to rotate. It can be understood that, since the rotating base 221 can drive the visual unit 23 to rotate, and the swing head 223 can drive the visual unit 23 to swing forward or leftward or rightward, the visual unit 23 can move in a hemisphere under the driving of the rotating base 221 and the swing head 223, so that objects at any angle in the forward direction of the visual unit 23 can be seen, and the surrounding environment can be observed during the insertion of the feeding tube, so as to avoid difficulty in insertion due to resistance to an object.

[0034] One end of the rotating driving wire 226 is connected to the control assembly 24, and the other end thereof is connected to the driving gear 225, so that the rotating driving wire 226 can be driven to rotate by the control assembly 24, and the driving gear 225 is driven to rotate. The end of the rotating driving wire 226 connected to the control assembly 24 is in the form of a bevel gear, which comprises a plurality of bevel teeth to cooperate with the corresponding structure of the control assembly 24. It can be understood that other structures can also be used to drive the rotating base 221 to rotate, such as a micro motor.

[0035] The visual unit 23 is fixedly arranged on the swing body 2231, and the power supply wire, data line and the like thereof are arranged in the guide wire 21. The position of the visual unit 23 is arranged to be beyond the tube head 111, so as to ensure that the field of view is not blocked by the tube head 111. The visual unit 23 can be a miniature camera, such as a pinhole camera. The visual unit 23 is a prior art, and will not be described in detail herein.

[0036] The control assembly 24 comprises a housing 241 connected with the guide wire 21, a swing driving knob 242 arranged on the housing 241, and a rotating driving assembly 243 arranged on the housing 241. It can be understood that the housing 241 can be composed of a bottom and a top cover, so as to facilitate assembly and processing, and also facilitate fixation of the guide wire 21 and bearing of the swing driving knob 242 and the rotating driving assembly 243.

[0037] The swing driving knob 242 is connected with the pulling traction line 224, that is, both ends of the pulling traction line 224 are wound on the swing driving knob 242. When in use, the pulling traction line 224 can be pulled back and forth by rotating the swing driving knob 242, so as to control the swing head 223 to swing left and right or forward and backward.

[0038] The rotation driving assembly 243 comprises a rotating knob 2431, a rotating connecting tooth bar 2432 coupled with the rotating knob 2431, and a rotating connecting tooth bar placing groove 2433 for accommodating the rotating connecting tooth bar 2432. One end of the rotating knob 2431 is provided with umbrella-shaped teeth to engage with one end of the rotating connecting tooth bar 2432, so as to drive the rotating connecting tooth bar 2432 to rotate. The rotating connecting tooth bar 2432 is arranged in the rotating connecting tooth bar placing groove 2433, and both ends of the rotating connecting tooth bar 2432 are respectively provided with umbrella-shaped teeth to couple with the umbrella-shaped teeth of the rotating knob 2431 and the rotating driving line 226. Therefore, one end of the rotating connecting tooth bar 2432 is coupled with the rotating knob 2431, and the other end is coupled with the rotating driving line 226. When the rotating knob 2431 is rotated, it will first drive the rotating connecting tooth bar 2432 to rotate, and then drive the rotating driving line 226 to rotate, so as to drive the driving gear 225 to rotate left and right, and finally drive the rotating base 221 to rotate, so as to realize the rotation of the whole guiding assembly 22. It can be understood that other driving modes can also be used to drive the rotating driving line 226 to rotate, such as a micro servo motor, and the like, which will not be listed one by one here.

[0039] Compared with the prior art, the feeding tube provided by the application has the guiding assembly 22, which comprises the rotating base 221, the swing base 222, the swing head 223, the control assembly 24, and the visual unit 23. At the same time, the control assembly 24 comprises the swing driving knob 242 and the rotation driving assembly 243. When the swing driving knob 242 is rotated, the swing head 223 can drive the visual unit 23 to swing left and right or forward and backward. When the rotation driving assembly 243 is rotated, the rotating base 221 can drive the swing head 223 and the visual unit 23 to rotate by 360 degrees, so that the visual unit 23 can move within a half-sphere visual angle, so as to navigate and adjust the posture during the process of inserting the feeding tube into the human body cavity, improve the speed and success rate of intubation, and then speed up and optimize the whole clinical insertion operation, greatly reduce the difficulty of insertion for doctors, and can confirm the accuracy of insertion, at the same time, take pictures of the tissue images of the insertion process and the bottom position, and can simply observe the tissue of the related internal cavity for clinical analysis.

[0040] The above merely illustrates the preferred embodiments of the present application, and is not used to limit the protection scope of the present application, any modification, equivalent replacement or improvement within the spirit of the present application is included in the protection scope of the present application.

Claims

1. A feeding tube with visual simultaneous multi-direction guiding function, characterized in that The visual feeding tube with guiding function comprises a catheter assembly and a guide wire assembly inserted in the catheter assembly, the catheter assembly comprises a tube body, the guide wire assembly comprises a guide wire inserted in the tube body, a guiding assembly arranged at one end of the guide wire, a visual unit arranged on the guiding assembly, and a control assembly arranged at the other end of the guide wire, the guiding assembly comprises a rotating base rotatably sleeved at one end of the guide wire, a swing base fixed on the rotating base, a swing head movably arranged on the swing base, a pulling traction line arranged on the swing head, a driving gear for driving the rotating base, and a rotating driving line arranged in the guide wire and used for driving the driving gear, the visual unit is fixedly arranged on the swing head, the control assembly comprises a swing driving knob and a rotating driving assembly, the swing driving knob is connected with the pulling traction line, and the swing head swings left and right when the swing driving knob rotates back and forth, the rotating driving assembly drives the rotating driving line to rotate, the driving gear rotates when the rotating driving line rotates, the rotating base rotates when the driving gear rotates, the swing base rotates when the rotating base rotates, and the swing head rotates when the swing base rotates, one end of the rotating base is partially hollow and comprises a body, an inner gear ring arranged at one end of the body and engaged with the driving gear, and a U-shaped support arranged at the other end of the body, the swing base is fixed on the U-shaped support, the driving gear is engaged with the inner gear ring, and one end of the driving gear is fixedly connected with the rotating driving line.

2. The feeding tube of claim 1, wherein: The swing base comprises a base body, two pulley accommodating grooves arranged at two sides of the base body respectively, two groups of pulley assemblies arranged in the pulley accommodating grooves respectively, and a swing support arranged on the base body.

3. The feeding tube of claim 2, wherein the distal end of the tube is configured to be inserted into the stomach of the patient. Each group of the pulley assemblies comprises two axles arranged at intervals and in a staggered manner, and two pulleys pivotally connected with the axles respectively, the arrangement direction of the central axes of the two axles and the axial direction of the body form an acute angle.

4. The feeding tube of claim 3, wherein: The two axles are fixed on the U-shaped support to fix the swing base, and the pulleys are clamped between the accommodating grooves and the U-shaped support.

5. The feeding tube of claim 3, wherein: The swing head comprises a swing body rotatably arranged on the swing support, a positioning wheel arranged at one side of the swing body, and a pulling rod arranged on the positioning wheel.

6. The feeding tube of claim 5, wherein: The positioning wheel is fixedly connected with the swing body, the wheel rim of the positioning wheel is provided with a notch matched with the pulling rod, the pulling rod is inserted in the notch and fixed on the swing body.

7. The feeding tube of claim 1, wherein: One end of the rotation driving line is fixedly connected with the driving gear, and the other end is a bevel gear structure and is coupled with the rotation driving assembly.

8. The feeding tube of claim 7, wherein: One end of the rotation knob is provided with bevel gear teeth for engaging with one end of the adapter tooth bar. The adapter tooth bar is arranged in the adapter tooth bar accommodating groove, and both ends of the adapter tooth bar are respectively provided with bevel gear teeth coupled with the bevel gear teeth of the rotation knob and the bevel gear teeth of the driving line.

Images