Novel sleeve for colonoscope

Abstract

The utility model provides a novel cannula for a colonoscope, which comprises a cannula main body, the colonoscope is arranged in the cannula main body, the cannula main body comprises a plurality of flexible catheter sections, a rigid catheter section is arranged between any adjacent flexible catheter sections, one end of the cannula main body is provided with a balloon section, and the other end of the cannula main body is provided with a balloon. A carrying section and a fixed end are sequentially arranged on the cannula main body in the direction far away from the balloon section; a first gas injection tube and a second gas injection tube are fixed in the fixed end, the balloon section is provided with an inner balloon and an outer balloon, the first gas injection tube is communicated with the outer balloon, and the second gas injection tube is communicated with the inner balloon. By adopting the unique design of the cannula, the cannula can be fixed inside the colonoscope when the colonoscope is inserted into the colon for the first time, a more direct visual field and an operation channel are provided, a doctor does not need to repeatedly pass through a physiological bending part when the colonoscope is inserted again, direct contact between a patient and the colonoscope is reduced through the cannula, the colonoscope is prevented from entering and exiting the colon for many times, and the operation efficiency is improved. And the discomfort of the patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a novel sleeve for a colonoscope. Background Art

[0002] Colonoscopy and surgery have become the main methods for treating colorectal polyps, used to detect and remove colon polyps. However, for patients with multiple polyps, there are the following technical defects: traditional endoscopic surgery requires doctors to enter and exit the colon many times to remove polyps one by one, which not only takes a lot of time, but also may cause pain during the operation and bring discomfort to patients; traditional colonoscopy may cause serious complications such as bleeding and perforation, and these risks usually increase with the increase in the number of operations.

[0003] Therefore, how to design a new type of colonoscope sleeve that reduces direct contact between patients and colonoscopes and avoids the colonoscope from entering and exiting the colon multiple times has become an urgent problem to be solved. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a new sleeve for a colonoscope to solve at least one of the above technical problems.

[0005] The technical solution of the utility model is: a new type of sleeve for colonoscope, including a sleeve main body, a colonoscope is arranged in the sleeve main body, the sleeve main body includes a plurality of flexible catheter segments, a rigid catheter segment is arranged between any adjacent flexible catheter segments, a balloon segment is arranged at one end of the sleeve main body, and the sleeve main body is sequentially provided with a holding segment and a fixed end in a direction away from the balloon segment; a first air injection tube and a second air injection tube are fixed in the fixed end, an inner balloon and an outer balloon are arranged in the balloon segment, the first air injection tube is communicated with the outer balloon, and the second air injection tube is communicated with the inner balloon; the outer balloon can fix the sleeve main body after being inflated.

[0006] The utility model adopts a balloon section which is in a collapsed state before an operation is performed, and which can be inflated and fixed inside the colon after being inserted into the expected area with the colonoscope; a flexible catheter section is adopted to allow the sleeve to rotate freely at the physiological bend of the colon to adapt to the specific physiological structure of different patients; a rigid catheter section is adopted for internal support and to prevent the sleeve from collapsing; an inner balloon is adopted, which is initially used to fix the colonoscope as the colonoscope is inserted so as to follow the colonoscope to the operation area, and during the operation, the inner balloon can expand and collapse the control channel by absorbing and releasing gas to perform lesion resection or other operations; when the polyp is removed and the colonoscope is ejected, the inner balloon can be re-inflated to prevent the gas in the colon from leaking out; an outer balloon is adopted to fix the colonoscope sleeve after it is inserted into the colon. And prevent intestinal gas leakage; the unique design of the sleeve enables it to be fixed inside when the colonoscope is first inserted into the colon, providing a more direct field of view and operating channel. When the colonoscope is inserted again, the doctor does not need to repeatedly cross the physiological bend, thereby significantly reducing the time required for the operation and improving surgical efficiency; the sleeve reduces the patient's direct contact with the colonoscope, and can avoid the colonoscope entering and exiting the colon multiple times, which significantly reduces the patient's discomfort. This improvement helps to improve the entire surgical process, provide patients with a gentler treatment experience, and further enhance the acceptability of treatment. The colon sleeve can avoid trauma and damage to the colon mucosa, thereby significantly reducing the risk of complications, improving the safety of the operation, and enhancing the patient's treatment experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the front view of the utility model.

[0008] Figure 2 It is a schematic diagram of the installation structure of the fixed end and two gas injection pipes of the utility model.

[0009] Figure 3 This is a structural diagram of Embodiment 7 of the present utility model.

[0010] Figure 4 This is a schematic diagram of the structure of the eighth embodiment of the present utility model.

[0011] Figure 5 This is a structural diagram of Embodiment 9 of the present utility model.

[0012] Figure 6 This is a schematic diagram of the structure of the tenth embodiment of the present utility model.

[0013] In the figure: 1. balloon segment; 2. flexible catheter segment; 3. rigid catheter segment; 4. holding segment; 5. fixed end; 6. first gas injection port; 7. second gas injection port; 101. inner balloon; 102. outer balloon. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] See also Figure 1-6 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0016] Embodiment 1: A new type of cannula for colonoscopy, referring to Figure 1 , Figure 3, including a sleeve body, in which a colonoscope is arranged, the sleeve body includes several flexible catheter segments 2, a rigid catheter segment 3 is arranged between any adjacent flexible catheter segments 2, a balloon segment 1 is arranged at one end of the sleeve body, and the sleeve body is sequentially provided with a holding segment 4 and a fixed end 5 in the direction away from the balloon segment 1; a first air injection tube and a second air injection tube are fixed in the fixed end 5, and the balloon segment 1 is provided with an inner balloon 101 and an outer balloon 102, the first air injection tube is communicated with the outer balloon 102, and the second air injection tube is communicated with the inner balloon 101; the outer balloon 102 can fix the sleeve body after being inflated. The utility model adopts a balloon section which is in a collapsed state before an operation is performed, and which can be inflated and fixed inside the colon after being inserted into the expected area with the colonoscope; a flexible catheter section is adopted to allow the sleeve to rotate freely at the physiological bend of the colon to adapt to the specific physiological structure of different patients; a rigid catheter section is adopted for internal support and to prevent the sleeve from collapsing; an inner balloon is adopted, which is initially used to fix the colonoscope as the colonoscope is inserted so as to follow the colonoscope to the operation area, and during the operation, the inner balloon can expand and collapse the control channel by absorbing and releasing gas to perform lesion resection or other operations; when the polyp is removed and the colonoscope is ejected, the inner balloon can be re-inflated to prevent the gas in the colon from leaking out; an outer balloon is adopted to fix the colonoscope sleeve after it is inserted into the colon. And prevent intestinal gas leakage; the unique design of the sleeve enables it to be fixed inside when the colonoscope is first inserted into the colon, providing a more direct field of view and operating channel. When the colonoscope is inserted again, the doctor does not need to repeatedly cross the physiological bend, thereby significantly reducing the time required for the operation and improving surgical efficiency; the sleeve reduces the patient's direct contact with the colonoscope, and can avoid the colonoscope entering and exiting the colon multiple times, which significantly reduces the patient's discomfort. This improvement helps to improve the entire surgical process, provide patients with a gentler treatment experience, and further enhance the acceptability of treatment. The colon sleeve can avoid trauma and damage to the colon mucosa, thereby significantly reducing the risk of complications, improving the safety of the operation, and enhancing the patient's treatment experience.

[0017] Embodiment 2: Based on Embodiment 1, refer to Figure 2 The fixed end 5 is a pear-shaped convex block, a first through hole is arranged at the center of the large end of the pear-shaped convex block, a second through hole and a third through hole are arranged in sequence from the small end of the pear-shaped convex block toward the large end, the first through hole, the second through hole and the third through hole are on the same vertical plane, and the second through hole and the third through hole are respectively connected with the first through hole; one end of the first gas injection tube passes through the second through hole and is connected with the outer balloon 102 along the axial direction of the inner wall of the first through hole, and one end of the second gas injection tube passes through the third through hole and is connected with the inner balloon 101 along the axial direction of the inner wall of the first through hole. The utility model adopts the fixed end of the pear-shaped convex block to fix the first gas injection tube and the second gas injection tube.

[0018] Embodiment 3: Based on embodiment 2, the other end of the first gas injection tube is provided with a first gas injection port 6, and the other end of the second gas injection tube is provided with a second gas injection port 7; the colonoscope can sequentially pass through the first through hole, the sleeve body, and the balloon segment 1 and then emerge. The utility model adopts the through first through hole, the sleeve body, and the balloon segment, which can facilitate the colonoscope to enter and exit the colon.

[0019] Embodiment 4: Based on Embodiment 1, Figure 3 The inner balloons 101 are two in number and are arranged symmetrically. After the two inner balloons 101 are inflated, the colonoscope can be fixed from both sides. The utility model adopts two symmetrically arranged inner balloons, which can fix the colonoscope from both sides after being inflated.

[0020] Embodiment 5: Based on Embodiment 4, refer to Figure 5 The two inner balloons 101 are inflated and contacted to seal the gas in the intestine after the colonoscope is withdrawn. The utility model adopts two symmetrically arranged inner balloons, which are inflated and contacted to seal the gas in the intestine after the colonoscope is withdrawn.

[0021] Embodiment 6: Based on Embodiment 1, there are two outer balloons 102, which are symmetrically arranged. After the two outer balloons 102 are inflated, treatment can be performed when the sheath is indwelled in the intestine. The utility model adopts two symmetrically arranged outer balloons, which can perform treatment when the sheath is indwelled in the intestine.

[0022] Embodiment 7: The storage state of the utility model when not in use, refer to Figure 3 , both the inner balloon 101 and the outer balloon 102 are not inflated.

[0023] Embodiment 8: The state of the utility model when the colonoscope is combined with the sleeve to enter the scope, refer to Figure 4 The two inner balloons 101 can be used to fix the colonoscope after being inflated, while the outer balloon 102 remains in an uninflated state.

[0024] Example 9: The state of the sleeve of the utility model when it is indwelling in the intestine and during the process of withdrawing the colonoscope, refer to Figure 5 The two inner balloons 101 are inflated to seal the gas in the intestine, and the two outer balloons 102 are also inflated to fix the sleeve.

[0025] Example 10: The utility model performs colonoscopy treatment when the sheath is indwelling in the intestine. Figure 6 , the two inner balloons 101 remain in an uninflated state, while the two outer balloons 102 are inflated to fix the cannula.

[0026] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A novel cannula for a colonoscope, comprising a cannula body, in which a colonoscope is arranged, characterized in that: The sleeve body comprises a plurality of flexible catheter segments (2), a rigid catheter segment (3) is arranged between any adjacent flexible catheter segments (2), a balloon segment (1) is arranged at one end of the sleeve body, and the sleeve body is provided with a holding segment (4) and a fixed end (5) in sequence in a direction away from the balloon segment (1); a first gas injection tube and a second gas injection tube are fixed inside the fixed end (5), the balloon segment (1) is provided with an inner balloon (101) and an outer balloon (102), the first gas injection tube is communicated with the outer balloon (102), and the second gas injection tube is communicated with the inner balloon (101); the outer balloon (102) can fix the sleeve body after being inflated.

2. A novel cannula for colonoscopy according to claim 1, characterized in that: The fixed end (5) is a pear-shaped protrusion, a first through hole is arranged at the center of the large end of the pear-shaped protrusion, a second through hole and a third through hole are arranged in sequence from the small end of the pear-shaped protrusion toward the large end, the first through hole, the second through hole and the third through hole are on the same vertical plane, and the second through hole and the third through hole are respectively connected to the first through hole; one end of the first air injection tube passes through the second through hole and is connected to the outer balloon (102) along the axial direction of the first through hole, and one end of the second air injection tube passes through the third through hole and is connected to the inner balloon (101) along the axial direction of the first through hole.

3. A novel cannula for colonoscopy according to claim 2, characterized in that: The other end of the first gas injection tube is provided with a first gas injection port (6), and the other end of the second gas injection tube is provided with a second gas injection port (7); the colonoscope can sequentially pass through the first through hole, the sleeve body, and the balloon section (1) before being exposed.

4. The novel cannula for colonoscopy according to claim 1, characterized in that: There are two inner balloons (101), which are symmetrically arranged. After the two inner balloons (101) are inflated, they can fix the colonoscope from both sides.

5. A novel cannula for colonoscopy according to claim 4, characterized in that: The two inner balloons (101) are inflated and contact each other, thereby sealing the gas in the intestine after the colonoscope is withdrawn.

6. The novel cannula for colonoscopy according to claim 1, characterized in that: There are two outer balloons (102), which are symmetrically arranged. After the two outer balloons (102) are inflated, treatment operations can be performed when the sheath is placed in the intestine.

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