A bowel obstruction catheter with a visual camera

Abstract

The present invention complies with the technical field of intestinal obstruction catheters, and in particular relates to an intestinal obstruction catheter with a visual camera. It comprises a catheter body, the catheter body is fixedly connected to a guide head, the guide head is provided with circumferentially spaced visual cameras, the catheter body is provided with a suction channel, a reserved channel 1 and a reserved channel 2, the catheter body is provided with spaced suction holes, the catheter body is provided with a liquid sac 1, the liquid sac 1 is connected to a catheter 1, the visual camera is connected to a data cable, the data cable is located in the reserved channel 2, and the tail end of the catheter body is provided with a liquid injection port 1, a data plug and a guide wire inlet. The present invention utilizes circumferentially equally spaced visual cameras to timely observe the internal environment of the intestinal cavity and the intestinal lesions, and at the same time, does not require an endoscope to be lowered into the intestinal cavity along with the catheter body, thereby reducing the discomfort of the patient's esophagus and throat after surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of intestinal obstruction catheters, and in particular to an intestinal obstruction catheter with a visual camera. Background Art

[0002] Intestinal obstruction is a common digestive system disease. The conservative treatment method for intestinal obstruction is to use an intestinal obstruction catheter to relieve intestinal pressure, thereby improving the discomfort caused by intestinal obstruction to the patient without surgery. Intestinal obstruction catheters are divided into transanal and transnasal types. The transnasal type is the most commonly used. The transnasal type is inserted into the small intestine through the patient's nasal cavity, and the peristaltic movement of the intestinal cavity pushes the intestinal obstruction catheter to the obstruction site, allowing the obstruction to be discharged.

[0003] During the lowering process of existing intestinal obstruction catheters, an endoscope is usually used to guide the intestinal obstruction catheter. The intestinal obstruction catheter and the endoscope pass through the patient's throat together. The endoscope will cause friction with the patient's throat and esophagus, which will increase the patient's throat discomfort after surgery. In addition, the intestinal obstruction catheter needs to stay in the patient's intestinal cavity for a period of time. Since the existing intestinal obstruction catheter does not have a visual function, it cannot provide medical staff with the information needed for effective treatment. Summary of the Invention

[0004] In order to overcome the shortcoming that the existing intestinal obstruction catheter has no visual function, the present invention provides an intestinal obstruction catheter with a visual camera.

[0005] The technical implementation scheme of the present invention is: an intestinal obstruction catheter with a visual camera, comprising a catheter body, a guide head fixedly connected to the head end of the catheter body, the guide head being provided with circumferentially spaced visual cameras, the catheter body being provided with a suction channel, a reserved channel 1 and a reserved channel 2, the outer wall of the catheter body close to the guide head being provided with spaced suction holes, the suction holes being connected to the suction channel, the catheter body being provided with a liquid sac 1, the liquid sac 1 being connected to a catheter 1, the catheter 1 being located in the reserved channel 1, the visual camera being connected to a data cable, the data cable being located in the reserved channel 2, the tail end of the catheter body being provided with a liquid injection port 1, a data plug and a guide wire inlet, the catheter 1 being connected to the liquid injection port 1, the data cable being connected to the data plug, the guide wire inlet being connected to the suction channel, and the visual camera being used to observe the intestinal environment and intestinal lesions.

[0006] Furthermore, an auxiliary movement component is included, which is arranged on the catheter body and located between the guide head and the liquid sac 1, and is used to assist intestinal wall peristalsis to push the catheter body to the intestinal obstruction. The auxiliary movement component includes a sliding part, an annular groove is provided on the outside of the catheter body, and the sliding part is slidably connected to the annular groove. Liquid sac 2 is provided on the outside of the sliding part, and liquid sac 3 is provided on the outside of the annular groove. The two ends of liquid sac 3 are respectively fixed to the sliding part and the catheter body, the liquid sac 1 and the liquid sac 3 are connected, the reserved channel 1 is provided with a catheter 2, and the tail end of the catheter body is provided with a liquid injection port 2, and the two ends of the catheter 2 are respectively connected to the liquid sac 2 and the liquid injection port 2.

[0007] Furthermore, the maximum diameter of the sliding member is the same as the diameter of the catheter body, and the liquid capsule 1 and the liquid capsule 3 are made of the same material.

[0008] Furthermore, the liquid capsule three is corrugated, and the maximum diameter of the liquid capsule three is the same as the maximum diameter of the sliding member.

[0009] Furthermore, the inner wall of the liquid capsule three is provided with annular hoops distributed at intervals, and the annular hoops are used to control the expansion direction of the liquid capsule three.

[0010] Furthermore, a steering assembly is also included, which is arranged between the guide head and the catheter body, and is used to control the bending direction between the guide head and the catheter body. The steering assembly includes circumferentially spaced expansion bags, and an air guide tube is provided in the reserved channel 2. The air guide tube is connected to the circumferentially spaced expansion bags, and a regulating component is provided at the tail end of the catheter body, and the regulating component is used to control the expansion of the expansion bag along the direction of the catheter body.

[0011] Furthermore, the regulating component includes a fixed tube, which is fixedly connected to the tail of the catheter body, the reserved channel 2 is fixedly connected to a connecting piece, the air guide tube is located inside the fixed tube and the connecting piece, the connecting piece is rotatably connected to a rotating sleeve, and an annular cavity is formed between the rotating sleeve and the connecting piece, the connecting piece is provided with four grooves, three of which are equipped with air storage bags, the air guide tube is connected to the three air storage bags, the inner wall of the rotating sleeve is fixedly connected to an extrusion block, and the extrusion block is located in another groove of the connecting piece.

[0012] Furthermore, the air guide tube is composed of three hoses, and the two ends of each hose are respectively connected to the air storage bag and the expansion bag.

[0013] Furthermore, the extrusion block is configured as a flexible rubber block, and the extrusion block is used to extrude the air storage bag.

[0014] Furthermore, an annular spring piece is also included. The annular spring piece is fixed between the catheter body and the guide head, and the annular spring piece is used to transition the gap between the catheter body and the guide head.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention utilizes visual cameras with equal circumferential spacing to timely observe the internal environment of the intestinal cavity and intestinal lesions. At the same time, there is no need for an endoscope to be lowered into the intestinal cavity along with the catheter body, thereby reducing the discomfort of the patient's esophagus and throat after surgery.

[0016] 2. The present invention utilizes the alternating operation of sac 1 and sac 2, so that the contraction force of sac 3 assists the peristalsis of the intestinal cavity to enable the catheter body to continue to move along the intestinal cavity, thereby avoiding intestinal adhesion in the patient's intestinal cavity and stagnation of sac 1 in the intestinal cavity when the intestinal peristalsis function is disordered, resulting in the patient's intestinal cavity being unable to release pressure in time.

[0017] 3. The present invention utilizes a rotating sleeve to adjust the position of the extrusion block, thereby squeezing the designated air storage bag to expand one of the three expansion bags, thereby changing the angle between the guide head and the catheter body, thereby more accurately regulating the direction of the guide head, reducing the friction of the guide head end on the lesion on the inner wall of the intestinal cavity, and thus reducing the patient's discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the catheter body and guide head and other parts of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the catheter body and rotating sleeve and other parts of the present invention;

[0021] Figure 4 sectional views of liquid capsule 2 and liquid capsule 3 of the present invention;

[0022] Figure 5 is a cross-sectional view of the catheter body of the present invention;

[0023] Figure 6 is a cross-sectional view of the sliding member and the liquid capsule three of the present invention;

[0024] Figure 7 is a cross-sectional view of the liquid capsule 3 and the annular hoop of the present invention;

[0025] Figure 8 is a cross-sectional view of the sliding member and the second liquid capsule of the present invention;

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the guide head, expansion bladder and other parts of the present invention;

[0027] Figure 10 is a cross-sectional view of the connecting member and the rotating sleeve of the present invention;

[0028] Figure 11 It is a cross-sectional view of the rotating sleeve, air storage bag and other parts of the present invention.

[0029] The meanings of the reference numerals in the figure are as follows: 1: catheter body, 101: suction channel, 102: reserved channel one, 103: reserved channel two, 104: suction hole, 2: guide head, 3: visual camera, 4: liquid capsule one, 5: catheter one, 501: catheter two, 6: data cable, 7: liquid injection port one, 701: liquid injection port two, 8: data plug, 9: guide wire inlet, 10: annular groove, 11: sliding part, 12: liquid capsule two, 13: liquid capsule three, 131: annular hoop, 14: expansion bag, 15: air guide tube, 16: fixed tube, 161: connecting part, 17: rotating sleeve, 18: air storage bag, 19: extrusion block, 20: annular spring piece. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Example 1: A bowel obstruction catheter with a visual camera, such as Figure 1-Figure 5As shown, it includes a catheter body 1, a guide head 2 is fixedly connected to the head end of the catheter body 1, the guide head 2 is made of soft material, and is used to guide the catheter body 1 in the intestinal cavity and reduce the friction between the catheter body 1 and the inner wall of the intestinal cavity. The guide head 2 is provided with three visual cameras 3 distributed circumferentially. The visual cameras 3 are used to observe the internal situation of the intestinal cavity and give the patient a more accurate treatment plan. At the same time, it does not need to be inserted into the patient's throat together with the endoscope, reducing the discomfort caused by the endoscope and the catheter body 1 being inserted into the throat together. The catheter body 1 is provided with a suction channel 101, a reserved channel 102 and a reserved channel 2 103. The reserved channel 102 and the reserved channel 2 103 can be set to different shapes as needed. The outer wall of the end of the catheter body 1 is provided with suction holes 104 distributed at intervals. The invention is used to attract obstructions, thereby reducing the intestinal pressure of the patient. The suction hole 104 is connected to the suction channel 101. The catheter body 1 is provided with a liquid sac 14, which is an existing structure. The liquid sac 14 is connected to a catheter 15, which is located in the reserved channel 102. The visual camera 3 is connected to a data cable 6, which is located in the reserved channel 2 103. The tail end of the catheter body 1 is provided with an injection port 17, a data plug 8 and a guide wire inlet 9. The catheter 15 is connected to the injection port 17, and the data cable 6 is connected to the data plug 8. Before the operation, the data plug 8 is connected to the connector of the visual display terminal, and the shooting images of the three visual cameras 3 will be displayed on the visual display terminal. The guide wire inlet 9 is connected to the suction channel 101, and the visual camera 3 is used to observe the intestinal environment and intestinal lesions.

[0032] Preparation stage: The medical staff inserts the guide wire into the catheter body 1 through the guide wire inlet 9, and connects the data plug 8 to the connector of the visual display terminal, and checks whether the three visual cameras 3 can work normally.

[0033] During the operation, the medical staff inserts the catheter body 1 from the nasal cavity to the designated position in the intestinal cavity, removes the guide wire, and then connects the negative pressure collector. The medical staff injects a designated amount of liquid into the catheter 5 through the injection port 7 using a syringe. After the liquid enters the liquid sac 4, the liquid sac 4 expands. The expanded diameter of the liquid sac 4 should be the same as the diameter of the patient's intestinal cavity. Under the peristalsis of the intestinal cavity, the expanded liquid sac 4 is pushed to the obstruction to relieve the pressure in the intestinal cavity. The delicate steps during the operation are not described here.

[0034] During the insertion of the catheter body 1, three visual cameras 3 timely observe the internal environment of the intestinal cavity and the intestinal lesions, which makes it easier for medical staff to insert the catheter body 1. Medical staff do not need to use an endoscope to guide the operation of the catheter body 1, and at the same time reduce the patient's discomfort after esophageal surgery. Finally, the medical staff inserts the syringe with liquid into the injection port 7, and then injects a certain amount of liquid in the syringe into the catheter 5. The liquid flows along the catheter 5 until it enters the liquid sac 4, thereby expanding the liquid sac 4. Then the staff removes the syringe, and the liquid sac 4 maintains its original volume. Under the peristalsis of the intestinal cavity, the catheter body 1 moves along the intestinal cavity until the position of intestinal obstruction is reached, thereby relieving the pressure in the intestinal cavity. The obstruction enters the suction channel 101 from the suction hole 104, and then the obstruction flows into the negative pressure collection device along the suction channel 101.

[0035] Research has found that when adhesion occurs on the inner wall of the patient's intestinal cavity, it is difficult to push the liquid capsule 4 to move by relying solely on the peristalsis of the intestinal cavity, which in turn causes the catheter body 1 to be unable to move to the obstruction site in time to reduce the patient's intestinal cavity pressure. In addition, the guide wire has been withdrawn, and the catheter body 1 cannot be delivered into the intestinal cavity manually. Therefore, the following means are used to assist the peristalsis of the intestinal cavity to push the liquid capsule 4 and move the end of the catheter body 1 to the obstruction site.

[0036] Example 2: Based on Example 1, Figure 2-Figure 8As shown, an auxiliary moving component is also included. The auxiliary moving component is arranged on the catheter body 1 and is located between the guide head 2 and the liquid capsule 1 4. It is used to assist the peristalsis of the intestinal wall to push the catheter body 1 to the intestinal obstruction. The auxiliary moving component includes a sliding member 11. The outer side of the catheter body 1 is provided with an annular groove 10. The sliding member 11 is slidably connected in the annular groove 10. The outer side of the sliding member 11 is provided with a liquid capsule 2 12. The liquid capsule 2 12 is an existing structure. The outer side of the annular groove 10 is provided with a liquid capsule 3 13. Both ends of the liquid capsule 3 13 They are respectively fixed to the slider 11 and the catheter body 1. Capsule 1 4 and capsule 3 13 are connected. Both capsule 1 4 and capsule 3 13 are located on the side of capsule 2 12 away from the guide head 2. When capsule 1 4 expands, capsule 3 13 expands in the direction of the catheter body 1. A catheter 2 501 is provided within the reserved channel 102. A liquid injection port 2 701 is provided at the tail end of the catheter body 1. Liquid injection port 2 701 has the same structure as liquid injection port 1 7. The two ends of catheter 2 501 are connected to capsule 2 12 and liquid injection port 2 701, respectively. The maximum diameter of the slider 11 is the same as that of the catheter body 1, thereby improving the smoothness of the lowering of the catheter body 1 along the nasal cavity and intestinal cavity. Capsule 1 4 and capsule 3 13 are made of the same material. Capsule 3 13 is corrugated, and its maximum diameter is the same as that of the slider 11. When capsule 3 13 expands, it expands in the direction of the catheter body 1. The inner wall of the liquid capsule 3 13 is provided with annular hoops 131 distributed at intervals. The annular hoops 131 are used to control the expansion direction of the liquid capsule 3 13 and reduce the circumferential expansion of the liquid capsule 3 13 .

[0037] When the intestinal cavity pushes the sac 14 to move, if intestinal adhesion and intestinal peristalsis disorder occur in the patient's intestinal cavity, the sac 14 will stagnate in the intestinal cavity, causing the catheter body 1 to be unable to enter the obstruction to relieve pressure. In order to deal with the above problems, the specific operations are as follows:

[0038] Medical staff need to use two syringes, one of which is filled with liquid (syringe one) and inserted into the liquid injection port two 701, and the other syringe (syringe two) without liquid is inserted into the liquid injection port one 7. The working process of this embodiment is based on Example 1 and is described in detail as follows: during the process of injecting liquid into the liquid sac one 4, under the action of the annular hoop 131, the liquid sac three 13 expands along the direction of the catheter body 1, and at the same time, the liquid sac one 4 expands to an appropriate size. During the expansion of sac three 13, sac three 13 pushes the slider 11 to slide along the annular groove 10, and the distance between the slider 11 and the guide head 2 is reduced. The medical staff pushes the liquid in syringe one into catheter two 501. After the liquid enters sac two 12, sac two 12 begins to expand and contacts the inner wall of the intestinal cavity. Then the medical staff controls syringe two to extract the liquid in sac one 4. The liquid in sac one 4 and sac three 13 is emptied. During this process, sac one 4 and sac three 13 will both shrink. Under the action of the contraction force of sac three 13, partial driving force is provided for the catheter body 1 to move along the intestinal cavity. Through the reciprocating work of syringe one and syringe two, the alternating work of sac one 4 and sac two 12 is utilized to provide partial external force for the catheter body 1 to move along the intestinal cavity, thereby assisting the peristalsis of the intestinal cavity to enable the catheter body 1 to continue to move along the intestinal cavity. After the operation is completed, it is sufficient to continue to ensure that sac one 4 is in an expanded state, and the peristalsis of the intestinal cavity continues to move the catheter body 1.

[0039] Research has found that during intestinal peristalsis, the guide head 2 will guide the catheter body 1 to move along the intestinal cavity. Although the guide head 2 is made of soft material, the end of the guide head 2 will still cause discomfort to the patient after it hits the patient's intestinal lesion. Therefore, the following means are used to reduce the patient's discomfort.

[0040] Example 3: Based on Example 2, Figure 3 、 Figure 5 and Figures 9-11 As shown, a steering assembly is also included. The steering assembly is arranged between the guide head 2 and the catheter body 1. The steering assembly is used to control the bending direction between the guide head 2 and the catheter body 1 to reduce the end of the guide head 2 from pressing against the lesion in the intestinal cavity. The steering assembly includes three expansion bags 14 distributed at circumferential intervals. An airway 15 is provided in the reserved channel 2 103. The airway 15 is connected to the circumferentially spaced expansion bags 14. A regulating component is provided at the tail end of the catheter body 1. The regulating component is used to control the expansion of the expansion bag 14 along the direction of the catheter body 1.

[0041] like Figure 3 、 Figure 10 and Figure 11As shown, the regulating component includes a fixed tube 16, which is fixed to the tail of the catheter body 1, and the fixed tube 16 is fixed to a connector 161. The air guide tube 15 is located inside the fixed tube 16 and the connector 161. The connector 161 is rotatably connected to a rotating sleeve 17. An annular cavity is formed between the rotating sleeve 17 and the connector 161. The connector 161 is provided with four grooves, and three of the grooves of the connector 161 are equipped with air storage bags 18. The air storage bags 18 can return to their initial expansion state when not squeezed. The air guide tube 15 and the three air storage bags are connected. 18 are all connected, and an extrusion block 19 is fixed to the inner wall of the rotating sleeve 17. When the extrusion block 19 squeezes any one of the three air bags 18, the air bag 18 squeezed by the extrusion block 19 will be compressed. The extrusion block 19 is located in another groove of the connecting piece 161. The extrusion block 19 does not squeeze any of the three air bags 18 initially. The air guide tube 15 is composed of three hoses, and the two ends of each hose are respectively connected to the air bag 18 and the expansion bag 14. The extrusion block 19 is set to a flexible rubber block, and the extrusion block 19 is used to squeeze the air bag 18.

[0042] The working process of this embodiment is similar to that of the embodiment 2 and is described in detail as follows: the catheter body 1 is moved by alternately cooperating with the liquid sac 1 4 and the liquid sac 2 12, and then cooperating with the peristalsis of the intestinal cavity. Before the operation, the medical staff observes the intestinal cavity according to the visual camera 3. When the guide head 2 is located at the intestinal lesion, the medical staff rotates the rotating sleeve 17, so that the rotating sleeve 17 rotates along the connecting piece 161, and the rotating sleeve 17 drives the extrusion block 19 to rotate. When the extrusion block 19 squeezes the air storage bag 18, the air storage bag 18 connected to the squeezed air storage bag 18 is compressed. The expansion bag 14 will expand synchronously, so that the expanded expansion bag 14 will change the angle direction between the guide head 2 and the catheter body 1, thereby more accurately controlling the direction of the guide head 2, reducing the friction of the end of the guide head 2 on the lesion on the inner wall of the intestinal cavity, thereby reducing the patient's discomfort. After passing through the adhesion part of the intestinal cavity, the control of liquid bag 1 4 and liquid bag 2 12 is stopped, and then the medical staff only needs to rotate the rotating sleeve 17 to the initial position, the expansion bag 14 returns to its initial state, and the guide head 2 is no longer subjected to force and continues to move along the intestinal cavity.

[0043] Example 4: Based on Example 3, Figure 9 As shown, an annular spring piece 20 is also included. The annular spring piece 20 is fixed between the catheter body 1 and the guide head 2. The annular spring piece 20 is used to bridge the gap between the catheter body 1 and the guide head 2.

[0044] The working process of this embodiment is consistent with that of Example 3. After changing the angle between the guide head 2 and the catheter body 1, the annular spring piece 20 is used to smoothly transition the gap between the guide head 2 and the catheter body 1, thereby reducing the friction between the guide head 2 and the catheter body 1 on the inner wall of the patient's intestinal cavity and reducing the degree of discomfort.

[0045] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. An intestinal obstruction catheter with a visual camera, characterized by: The invention comprises a catheter body (1), a guide head (2) fixedly connected to the head end of the catheter body (1), the guide head (2) being provided with visual cameras (3) spaced apart in the circumferential direction, the catheter body (1) being provided with a suction channel (101), a reserved channel 1 (102) and a reserved channel 2 (103), an outer wall of the catheter body (1) on a side close to the guide head (2) being provided with suction holes (104) spaced apart, the suction holes (104) being communicated with the suction channel (101), the catheter body (1) being provided with a liquid sac 1 (4), the liquid sac 1 (4) being communicated with a catheter 1 (5), the catheter 1 (5) is located in the reserved channel 1 (102), the visual camera (3) is connected to a data line (6), the data line (6) is located in the reserved channel 2 (103), the tail end of the catheter body (1) is provided with a liquid injection port 1 (7), a data plug (8) and a guide wire inlet (9), the catheter 1 (5) is connected to the liquid injection port 1 (7), the data line (6) is connected to the data plug (8), the guide wire inlet (9) is connected to the suction channel (101), and the visual camera (3) is used to observe the intestinal environment and intestinal lesions; The invention also includes an auxiliary moving component, which is arranged on the catheter body (1) and located between the guide head (2) and the liquid sac 1 (4), and is used to assist the peristalsis of the intestinal wall to push the catheter body (1) to the intestinal cavity obstruction. The auxiliary moving component includes a sliding member (11), an annular groove (10) is provided on the outside of the catheter body (1), the sliding member (11) is slidably connected in the annular groove (10), and a liquid sac 2 (12) is provided on the outside of the sliding member (11). The outer side of the annular groove (10) is provided with a liquid capsule three (13), the two ends of the liquid capsule three (13) are respectively fixed to the sliding member (11) and the catheter body (1), the liquid capsule one (4) and the liquid capsule three (13) are connected, the reserved channel one (102) is provided with a catheter two (501), the tail end of the catheter body (1) is provided with a liquid injection port two (701), the two ends of the catheter two (501) are respectively connected to the liquid capsule two (12) and the liquid injection port two (701).

2. The intestinal obstruction catheter with a visual camera according to claim 1, characterized in that: The maximum diameter of the sliding member (11) is the same as the diameter of the catheter body (1), and the material of the liquid sac one (4) and the liquid sac three (13) is the same.

3. The intestinal obstruction catheter with a visual camera according to claim 2, characterized in that: The liquid capsule three (13) is corrugated, and the maximum diameter of the liquid capsule three (13) is the same as the maximum diameter of the sliding member (11).

4. The intestinal obstruction catheter with a visual camera according to claim 3, characterized in that: The inner wall of the liquid capsule three (13) is provided with annular hoops (131) distributed at intervals, and the annular hoops (131) are used to control the expansion direction of the liquid capsule three (13).

5. The intestinal obstruction catheter with a visual camera according to claim 4, characterized in that: The invention also includes a steering assembly, which is arranged between the guide head (2) and the catheter body (1), and is used to control the bending direction between the guide head (2) and the catheter body (1). The steering assembly includes circumferentially spaced expansion bags (14), and an air guide tube (15) is arranged in the reserved channel 2 (103). The air guide tube (15) is connected to the circumferentially spaced expansion bags (14). The tail end of the catheter body (1) is provided with a regulating component, and the regulating component is used to control the expansion of the expansion bag (14) along the direction of the catheter body (1).

6. The intestinal obstruction catheter with a visual camera according to claim 5, characterized in that: The regulating component includes a fixed tube (16), the fixed tube (16) is fixedly connected to the tail of the catheter body (1), the fixed tube (16) is fixedly connected to a connector (161), the air guide tube (15) is located inside the fixed tube (16) and the connector (161), the connector (161) is rotatably connected to a rotating sleeve (17), an annular cavity is formed between the rotating sleeve (17) and the connector (161), the connector (161) is provided with four grooves, three of which are equipped with air storage bags (18), the air guide tube (15) is connected to the three air storage bags (18), the inner wall of the rotating sleeve (17) is fixedly connected to an extrusion block (19), and the extrusion block (19) is located in another groove of the connector (161).

7. The intestinal obstruction catheter with a visual camera according to claim 6, characterized in that: The air guide tube (15) is composed of three hoses, and the two ends of each hose are respectively connected to the air storage bag (18) and the expansion bag (14).

8. The intestinal obstruction catheter with a visual camera according to claim 7, characterized in that: The extrusion block (19) is configured as a flexible rubber block, and the extrusion block (19) is used to extrude the air storage bag (18).

9. The intestinal obstruction catheter with a visual camera according to claim 8, characterized in that: It also includes an annular spring piece (20), which is fixed between the catheter body (1) and the guide head (2), and is used to bridge the gap between the catheter body (1) and the guide head (2).

Images