Multifunctional gastrointestinal tube assembly capable of entering small intestine

Abstract

The utility model discloses a multifunctional gastrointestinal tube assembly capable of entering small intestines, which belongs to the field of medical instruments and is characterized by comprising a guide tube and a sleeve. A balloon is arranged at the front end of the guide tube, and the size of the balloon meets the requirement that the balloon can walk in intestines and stomach along with gastrointestinal motility; and the cannula and the enteroscope are sleeved on the outer side of the guide tube. Compared with the prior art, the cannula can enter the small intestine without the help of a gastroscope or an intervention means, and an enteroscope can be used for observation or treatment in the small intestine. The operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to a medical device, in particular to an auxiliary treatment device suitable for diseases such as digestive tract bleeding, intestinal obstruction, drug poisoning, gastrointestinal surgery, etc., which has the functions of decompression, flushing, nutrition and inspection on the stomach or small intestine. Background Art

[0002] At present, when treating gastrointestinal bleeding, intestinal obstruction, or drug poisoning, a gastric tube or intestinal obstruction catheter needs to be placed in the stomach or small intestine to drain the contents of the gastrointestinal tract (digestive juice, chyme, blood, drugs, toxic liquid, alcohol, etc.) to reduce gastrointestinal pressure, flush the gastrointestinal cavity or observe the drainage fluid; some patients who cannot eat orally (esophageal cancer obstruction, tracheoesophageal fistula, neurogenic dysphagia) need to place a nutrition tube in the stomach or small intestine to infuse nutrient solution for enteral nutrition; patients undergoing upper gastrointestinal surgery need to place a decompression tube in the stomach for decompression and a nutrition tube in the upper part of the small intestine for nutrition. Nursing staff can manually insert the gastrointestinal tube into the stomach cavity through the nose. Since the pylorus of the stomach is thin and constantly peristaltic, and the small intestine is curved and narrow, it is difficult to insert it into the small intestine. It is necessary to use a gastroenteroscope or perform interventional catheterization under fluoroscopy to enter the small intestine, which is troublesome and time-consuming. The operation process usually takes 3-8 hours, and sometimes the operation is unsuccessful, and the labor intensity of medical staff is high. Specifically, they include the following aspects: ① When the gastrointestinal tube enters the pylorus through the stomach, the lower end of the tube is easy to bend and rebound in the stomach cavity, making it difficult to align with the pylorus and entering the pylorus; ② The gastrointestinal tube is generally soft and slender, and the force exerted by the handheld end is difficult to transmit to one end in the body, making it difficult to control the advancement and direction of the gastrointestinal tube; ③ During insertion, the tube needs to be inserted under general anesthesia in the endoscopy room, and its position must be observed under fluoroscopy. The whole process is painful for the patient, and prolonged radiation time can easily cause adverse effects on the patient's health.

[0003] At present, clinical gastrointestinal endoscopy mainly uses gastroscopy and colonoscopy, and the small intestine is mainly examined with small intestine endoscopy and capsule endoscopy. Small intestine endoscopy needs to be performed under general anesthesia. The process takes several hours, and sometimes the small intestine cannot be fully examined. The doctor's operation is labor-intensive. Capsule endoscopy may lead to missed diagnosis due to film reading or inaccurate diagnosis due to the inability to perform biopsy. Because the small intestine is long and thin, about 5 meters, it is not easy to observe the internal mucosa of the small intestine throughout the whole process. Utility Model Content

[0004] The technical task of the utility model is to provide a multifunctional gastrointestinal tube component that can enter the small intestine in view of the deficiencies of the above prior art.

[0005] The utility model solves the technical problem by providing a multifunctional gastrointestinal tube assembly capable of entering the small intestine, characterized in that it comprises at least two of a guide tube, a sleeve and a small enteroscope; when the guide tube cooperates with the sleeve, a guide tube channel is provided in the sleeve, and the guide tube passes through the guide tube channel in the sleeve; when the sleeve cooperates with the small enteroscope, a small enteroscope channel is provided in the sleeve, and the small enteroscope passes through the small enteroscope channel in the sleeve; when the guide tube cooperates with the small enteroscope, the guide tube passes through the small enteroscope cavity ... When the tube, sheath and enteroscope are used in combination, the guide tube passes through the sheath or the enteroscope; at least one of the guide tubes or sheaths in the component is provided with one or more balloons at the front end, and the guide tube or sheath provided with the balloon is provided with a channel connecting to the balloon; the size of the balloon is sufficient to allow it to move in the stomach and intestines with gastrointestinal peristalsis; when in use, the balloon drives the guide tube to move forward in the distal direction in the stomach and intestines with gastrointestinal peristalsis, and the sheath and enteroscope use the guide tube as a support and are pushed forward in the distal direction in the small intestine along the guide tube.

[0006] The above-mentioned components include a small intestine endoscope, the front end of which is provided with a camera and a light-emitting device for observing the pathological conditions in the small intestine.

[0007] The above-mentioned components include a small enteroscope, the tube wall diameter of which is less than or equal to 0.6 cm and the length is 2 to 5 meters.

[0008] A contrast medium channel is provided in the sleeve or guide tube in the above-mentioned component, and an opening is provided at the front end of the contrast medium channel.

[0009] The above-mentioned components include a guide tube, the front end part of the guide tube is a soft catheter, the soft catheter part is softer than the main part of the guide tube and can bend freely; the guide tube is provided with a supporting structure except for the main part of the front end soft catheter, and the hardness and elasticity of the main part of the guide tube are increased by the supporting structure.

[0010] The supporting structure is a hard guide wire, which is fixed on the wall of the guide tube or inserted into the channel of the guide tube.

[0011] The hard guide wire is spirally wound on the outer surface of the guide tube wall.

[0012] The hard guide wire material is a material that can be developed under fluoroscopy.

[0013] The above-mentioned components include a sleeve and a guide tube, and a balloon is arranged on the guide tube; there are multiple sleeves, which are nested layer by layer; the innermost sleeve is sleeved on the guide tube, and the second outermost sleeve is sleeved on the inner sleeve adjacent to it.

[0014] The wall of the sleeve or guide tube is provided with a series of convex ribs extending along the length direction.

[0015] The above-mentioned sleeve or guide tube is provided with a super-slip coating.

[0016] The middle position of the balloon side wall is provided with an annular groove structure which is concave toward the center position.

[0017] The above-mentioned small intestine endoscope is provided with a battery and a wireless transmitting device; the video information is sent out through the wireless transmitting device.

[0018] The above-mentioned component includes a sleeve, and one or more strip holes are arranged on the side wall of the sleeve.

[0019] Compared with the prior art, the utility model has the following outstanding beneficial effects:

[0020] 1. The balloon enters the small intestine through gastrointestinal peristalsis, and then the sheath is inserted into the small intestine along the guide tube. It is easy to operate, saves operation time, reduces the doctor's labor intensity, and reduces radiation exposure;

[0021] 2. No need to operate under general anesthesia in the gastroscopy room, the operation can be performed in the ward, which reduces the pain for the patient and reduces the cost;

[0022] 3. The small enteroscope can be fixed at a specific lesion location, or can be inserted into the stomach and small intestine through the sheath at any time when needed. Since it does not irritate the mucosa, the patient's pain is minimal, and the changes in the affected area can be observed for a long time or at any time.

[0023] 4. The guide tube can be used as a support to replace the cannulas of different calibers to prevent tube blockage and achieve the purpose of flushing or feeding.

[0024] 5. The enteroscope can be connected to a mobile phone or display screen via a wireless network, allowing medical staff to observe the conditions and changes in the gastrointestinal cavity at any time.

[0025] 6. Because there are metal wires on the wall of the casing or guide tube, the stretching of the tube can be limited and the bending elasticity can be increased, making it difficult to make sharp bends, and the position of the tube can be found under perspective.

[0026] 7. When doing a small enteroscopy, water can be injected through the guide tube and water cannula can be absorbed to achieve the purpose of flushing the intestine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the double-airbag guide tube of the utility model.

[0028] Figure 2 It is a schematic diagram of the structure of a single airbag guide tube of the utility model.

[0029] Figure 3 It is a partial cross-sectional view of the front end of the guide tube.

[0030] Figure 4 It is a schematic diagram of the internal structure of the double-balloon guide tube.

[0031] Figure 5 It is a schematic diagram of the guide tube and sleeve structure in Example 1 of the utility model.

[0032] Figure 6 It is a schematic diagram of the use state of Example 1 of the utility model.

[0033] Figure 7 It is a schematic diagram of a sleeve assembly with an airbag in Example 1 of the utility model.

[0034] Figure 8 It is a structural schematic diagram of embodiment 2 of the present utility model.

[0035] Fig. 9 It is a structural schematic diagram of embodiment 3 of the present utility model.

[0036] Fig.10 It is a schematic diagram of a sleeve assembly with an airbag in Example 3 of the utility model.

[0037] Fig.11 It is a schematic diagram of the guide tube structure of Example 4 of the utility model.

[0038] Fig.12 It is a schematic diagram of the use status of embodiment 4 of the utility model.

[0039] Fig.13 It is a cross-sectional view of embodiment 4 of the present utility model. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0041] like Figures 1 to 11 As shown, the utility model comprises a guide tube 1, a sleeve 6 and a small intestine endoscope 10. For the convenience of description, the end of the above-mentioned equipment inserted into the human body is set as the front end, and the other end is set as the rear end. When used, they can be used in combination of two or all three according to specific needs.

[0042] In Example 1, Figures 1 to 6 As shown, the front end of the guide tube 1 is provided with one or more balloons 3, and the size of the balloon 3 is sufficient to move in the stomach and intestines with gastrointestinal peristalsis. The guide tube 1 is provided with a channel 5 connected to the balloon 3, which is used to inject air, liquid or contrast agent into the balloon 3 to control the expansion and contraction of the balloon 3. The guide tube 1 is also provided with a contrast agent channel 4, and the front end of the contrast agent channel 4 is provided with an opening, through which contrast agent or flushing liquid is injected into the stomach and intestines, so as to observe the position of the balloon 3 in the stomach and intestines.

[0043] The front end portion of the guide tube 1 is a soft catheter 2 with a length of 5-18 cm. The soft catheter 2 is softer than the main body of the guide tube 1 and can bend freely, so that the front end of the guide tube 1 can move along the curved gastrointestinal tract. In addition to the main body of the front soft catheter 2, the guide tube 1 is provided with a support structure. The support structure has a certain hardness and elasticity, so that the main body of the guide tube 1 has good bending performance. Specifically, it means that the main body of the guide tube 1 has a certain bending ability, so that it can bend with the shape of the gastrointestinal tract, but the main body of the guide tube 1 will not have a sharp bend with excessive curvature, so that the sleeve 6 can easily pass through the guide tube 1. The support structure has the following forms: The first form is that the support structure is located on the side wall of the guide tube 1, for example, a material with slightly higher strength, such as steel wire, is embedded in the side wall of the guide tube 1. Steel wire and other materials can also be spirally wrapped around the side of the tube wall to form a spring-loaded structure, such as Figure 1-3 As shown, the spiral outer surface structure improves the elasticity of the guide tube 1 on the one hand, and reduces the friction of the guide tube 1 on the other hand, so that it can slide smoothly in the sleeve 6 or the small intestine endoscope 10; the second method is to insert a hard guide wire 12 with a certain hardness into the lumen of the guide tube 1, and the hard guide wire 12 plays a supporting role. When the front end of the guide tube 1 enters the small intestine, the hard guide wire 12 can be pulled out. The hard guide wire 12 is preferably a material that can be developed under fluoroscopy, so that it can be in the position where the fluoroscopic guide tube or endoscope is located.

[0044] like Figure 5 As shown, the sleeve 6 is sleeved on the outside of the guide tube 1. There are multiple sleeves 6, which are nested layer by layer. The innermost sleeve 7 is sleeved on the guide tube 1, and the second outer sleeve 8 is sleeved on the adjacent inner sleeve 7. The guide tube 1 or sleeve 6 is provided with technical features to reduce friction, including but not limited to the following methods: first, a super-slip coating is provided on the tube wall; second, a series of convex ribs 13 are provided on the tube wall of the sleeve 6 or the guide tube 1, such as Fig.11 The above structure can reduce friction, making it easier to push the sleeve 6 forward.

[0045] The outer side surface of the guide tube 1 may be a spiral structure, similar to the outer side surface structure of a spring, and this structure can reduce the friction of the guide tube 1.

[0046] like Figure 2 , 3 As shown, the middle position of the side wall of the balloon 3 is provided with an annular groove structure 11 which is concave toward the center position, forming a structure similar to a gourd (one groove) or a candied haws (multiple grooves). The groove structure 11 can increase the friction between the balloon 3 and the small intestine, and increase the thrust of the small intestine peristalsis on the balloon 3.

[0047] The enteroscope 10 is provided with a light-emitting device, a camera, a battery and a wireless transmitter. The front end of the enteroscope 10 is provided with a camera and a light-emitting device, such as an LED light, so that the lesions in the small intestine can be observed, and the battery provides power for the device. The video information is sent out through the wireless transmitter. Doctors can remotely observe the condition through mobile phones, tablet computers and other devices.

[0048] In order to facilitate the turning of the small enteroscope 10, a snake bone structure is provided at the front end of the small enteroscope 10, through which the direction of the front end of the small enteroscope 10 can be controlled, so that videos at different angles can be observed. There are biopsy and flushing channels in the small enteroscope 10, which can be used to sample the mucosa or perform some endoscopic treatments such as spraying or injecting drugs. The intestines and the lens can also be flushed.

[0049] like Fig.11 As shown, one or more strip holes 14 are provided on the side wall of the sleeve, which is used as a decompression tube to reduce pressure in the stomach. The strip holes 14 can prevent the entrance of the decompression tube from being blocked, and can also prevent large particles from entering the sleeve or guide tube, thereby avoiding the sleeve or guide tube from being blocked.

[0050] After gastric surgery to remove the lesion and re-anastomose the stomach, a decompression tube must be left in the stomach for decompression, and a nutrition tube must be left in the upper small intestine for nutrition. During the operation, a cannula 6 can be placed with a side hole in the stomach cavity for decompression, and a guide tube 1 can be placed in the upper small intestine distal to the anastomosis for infusing nutrient solution.

[0051] The operation process is as follows: when in use, first retract the balloon 3 at the front end of the guide tube 1 into the sleeve 6 or the small enteroscope 10. After entering the stomach through the nose, pharynx, and esophagus, the guide tube is pushed out from the sleeve 6 or the small enteroscope 10, and liquid is injected from the tail end of the guide tube to fill the balloon 3 to an appropriate size. The balloon 3 enters the small intestine through the pylorus with gastric peristalsis; then push the thinnest sleeve 7 and the guide tube 1 forward until they are inserted into the corresponding position of the small intestine, and then push the second thickest sleeve 8 into place... until the thickest sleeve 9 is inserted; then pull out the other sleeves except the thickest sleeve 9, leaving only the guide tube 1 and the thickest sleeve 9. A cavity will be left between the guide tube 1 and the thickest sleeve 9, such as Figure 6 As shown, the enteroscope 10 is inserted along the cavity.

[0052] In Example 2, Figure 8 As shown, it includes a guide tube 1, a sleeve 6 and a small enteroscope 10. The sleeve 6 is provided with a guide tube 1 channel and a small enteroscope 10 channel, respectively, for passing the guide tube 1 and the small enteroscope 10, respectively. The structures of the guide tube 1 and the small enteroscope 10 are the same as those of the first embodiment.

[0053] In Example 3, Fig. 9As shown, it includes a guide tube 1, a sleeve 6 and a small enteroscope 10. The small enteroscope 10 passes through the sleeve 6, and the guide tube 1 passes through the channel of the small enteroscope 10.

[0054] In Examples 2 and 3, before inserting into the small intestine, the sleeve 6, the guide tube 1 and the small enteroscope 10 are first assembled in vitro, and then the entire device is inserted into the stomach along the esophagus through the nose or mouth. The video can be transmitted back through the action of the small enteroscope 10, and the situation in the stomach can be observed at this time. Under video observation, the knob at the tail end of the small enteroscope 10 is twisted to make the small enteroscope 10 drive the guide tube and the sleeve 6 into the pylorus; when the entire device enters the small intestine, the guide tube 1 is pushed out from the biopsy channel of the small enteroscope 10, and the balloon 3 is expanded by injecting liquid. The peristalsis of the small intestine drives the balloon 3 and the small enteroscope 10 forward, and the small intestine is observed. If biopsy and other operations are required, the guide tube 1 is withdrawn, and the biopsy forceps enter through the biopsy channel to perform the operation; if the small enteroscope 10 is not needed, the small enteroscope 10 can be taken out, and the balloon 3, the guide tube 1 and the sleeve 6 are driven forward by the peristalsis of the small intestine. Decompression, flushing and other operations are performed through the sleeve 6.

[0055] In Example 4, Figure 7 , 10 -12, comprising a sleeve 6, a balloon is provided at the front end of the sleeve 6, a channel connected to the balloon is provided inside the sleeve 6, and a strip hole 14 is provided on the wall of the sleeve 6, and the strip hole 14 is used for decompression in the stomach and intestines.

[0056] After the sheath enters the small intestine, the balloon in front of the sheath is expanded and fixed tightly against the intestinal wall. The small enteroscope is supported by this and actively pushed forward in the intestine for a certain distance. The balloon is then retracted and the sheath is pushed forward with the small enteroscope as support. This process is repeated alternately to allow the sheath and small enteroscope to move forward in the small intestine.

[0057] Compared with traditional gastroscopy, the utility model does not need to be operated under general anesthesia, and the entire operation process can be completed in the ward without anesthesia. Therefore, the patient suffers less pain, the cost is low, the doctor's operation is simple, the operation time is saved, and the radiation exposure is reduced.

[0058] Compared with capsule gastroscopy, the present invention can fix the small enteroscope 10 at a designated position to observe the changes in the affected part of the stomach and intestines for a long time. For example, if there is an ulcer bleeding point in the stomach and intestines, the small enteroscope 10 video can be turned on at any time after treatment to observe the recovery of the bleeding position and monitor whether the bleeding occurs again. Or observe the fistula of the digestive tract.

[0059] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A multifunctional gastrointestinal tube assembly capable of entering the small intestine, characterized in that: The invention comprises at least two of the group consisting of a guide tube, a sleeve and a small enteroscope; when the guide tube cooperates with the sleeve, a guide tube channel is provided in the sleeve, and the guide tube passes through the guide tube channel in the sleeve; when the sleeve cooperates with the small enteroscope, a small enteroscope channel is provided in the sleeve, and the small enteroscope passes through the small enteroscope channel in the sleeve; when the guide tube cooperates with the small enteroscope, the guide tube passes through the small enteroscope cavity; when the guide tube, the sleeve and the small enteroscope are used in combination, the guide tube passes through the sleeve or the small enteroscope; at least one of the guide tubes or sleeves in the component is provided with one or more balloons at the front end, and the guide tube or sleeve provided with the balloon is provided with a channel connecting the balloon; the size of the balloon is sufficient to move in the stomach and intestines along with gastrointestinal peristalsis; when in use, the balloon drives the guide tube to move forward in the stomach and intestines in a distal direction along with gastrointestinal peristalsis, and the sleeve and the small enteroscope are supported by the guide tube and are pushed forward in the small intestine in a distal direction along the guide tube.

2. A multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The component includes a small intestine endoscope, the front end of which is provided with a camera and a light emitting device for observing the pathological conditions in the small intestine.

3. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The component includes a small enteroscope, the tube wall diameter of which is less than or equal to 0.6 cm and the length is 2 to 5 meters.

4. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: A contrast medium channel is arranged in the sleeve or the guide tube in the assembly, and an opening is arranged at the front end of the contrast medium channel.

5. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The component includes a guide tube, the front end portion of which is a soft catheter. The soft catheter portion is softer than the main body of the guide tube and can bend freely. In addition to the main body of the front end soft catheter, the guide tube is provided with a support structure, which increases the hardness and elasticity of the main body of the guide tube.

6. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 5, characterized in that: The supporting structure is a hard guide wire, which is fixed on the tube wall of the guide tube or inserted into the channel of the guide tube.

7. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 6, characterized in that: The hard guide wire is spirally wound on the outer side of the guide tube wall.

8. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 6, characterized in that: The hard guide wire material is a material that can be developed under perspective.

9. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The assembly comprises a sleeve and a guide tube, and a balloon is arranged on the guide tube; there are multiple sleeves, which are nested layer by layer; the innermost sleeve is sleeved on the guide tube, and the second outermost sleeve is sleeved on the inner sleeve adjacent to it.

10. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The wall of the sleeve or guide tube is provided with a series of convex ribs extending along the length direction.

11. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The sleeve or guide tube is provided with a super-slip coating.

12. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: An annular groove structure concave toward the center is provided in the middle of the side wall of the balloon.

13. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 2, characterized in that: The small intestine endoscope is provided with a battery and a wireless transmitting device; the video information is sent out through the wireless transmitting device.

14. The multifunctional gastrointestinal tube assembly capable of entering the small intestine according to claim 1, characterized in that: The assembly comprises a sleeve, and one or more strip holes are arranged on the side wall of the sleeve.

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