Digestive endoscope auxiliary device for treatment

Abstract

The utility model discloses a digestive endoscopy auxiliary device for treatment, which comprises a sleeve, an inner hole in the sleeve is used for mounting an endoscope, a plurality of uniformly distributed transverse grooves are formed in the inner wall of the sleeve, a first reciprocating screw rod is rotatably mounted in each transverse groove, fixing plates with the same number as the transverse grooves are arranged in the sleeve, and a second reciprocating screw rod is rotatably mounted in each transverse groove. Each first reciprocating lead screw is provided with a connecting rod structure used for driving the corresponding fixing plate to be close to or away from the circle center of the corresponding sleeve, and a driving structure used for rotating the corresponding first reciprocating lead screw is further arranged in the corresponding sleeve. The endoscope fixing device has the advantages that the driving structure drives the first reciprocating lead screws to rotate to drive the connecting rod structure to move, so that the fixing plate connected with the connecting rod structure is close to the circle center of the sleeve, and an endoscope located in the sleeve is fixed; and the distance between the fixing plate and the circle center of the sleeve is driven by the connecting rod structure, so that endoscopes with different specifications and sizes can be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopic examination, in particular to a therapeutic digestive endoscope auxiliary device. Background Art

[0002] Colorectal cancer is the third most common malignant tumor in the world, which is closely related to the improvement of living standards and changes in dietary structure. With the continuous development of endoscopic equipment and operation technology, endoscopy has become an important method for treating early colorectal cancer. Early detection of tumor lesions and endoscopic resection have become the ideal goal of intestinal tumor treatment. Due to the folds of the rectal mucosa and the peristalsis of the intestine, it is difficult for the endoscope to be stably positioned in the intestine, making the endoscopic treatment inconvenient. In order to improve the positioning stability of the endoscope, it is necessary to install auxiliary devices on the endoscope to improve the stability of the endoscope during operation;

[0003] In a therapeutic digestive endoscope auxiliary device disclosed in publication number CN207613805U, the end of the sleeve opposite to the transparent ring is used to be tightly sleeved on the head end of the colonoscope, and the transparent ring extends beyond the endoscope end. When the endoscope is inserted for inspection, the elastic body is blocked by the mucosa, in a folded state, and attached to the outer wall surface of the sleeve. At the same time, the smooth outer surface contacts the mucosa, minimizing the impact on the endoscope insertion operation and the damage to the mucosa; when the endoscope is withdrawn for inspection, the elastic body opens and contacts the mucosa, fixes the position of the endoscope end in the intestinal cavity through the friction force when the endoscope is withdrawn, and helps to flatten the intestinal wall wrinkles, which to a certain extent reduces the impact caused by frequent colon peristalsis;

[0004] In a therapeutic digestive endoscope auxiliary device disclosed in publication number CN213075571U, the introduction and export of gas in the device are facilitated by the assembly of the guide tube and the air inlet. The gas stays in the device, causing the airbag to expand and deform due to other internal changes, so that the silicone strip can be quickly and stably stored and unfolded, facilitating the stable positioning of the device and the inner diameter in the intestine, and preventing sliding after positioning. The silicone strip can be stably and effectively turned over, unfolded and stored. When the silicone strip is stored, the sleeve limits the endoscope, facilitating the movement and change of the position of the device and the endoscope in the intestine.

[0005] However, the above scheme still has the following problems during use: when in use, the digestive endoscope is directly mounted on the sleeve for use, which has poor stability and is not easy to adjust the sleeve when using digestive endoscopes of different specifications. When withdrawing the endoscope, the expansion piece on the outside of the sleeve is tilted and expanded, and the expansion piece, sleeve and intestine form a triangular area, which increases the withdrawal resistance and easily causes damage to the inner wall of the intestine. For this reason, we provide a therapeutic digestive endoscope auxiliary device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a therapeutic digestive endoscope auxiliary device.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] A therapeutic digestive endoscopy auxiliary device comprises a sleeve, an inner hole in the sleeve is used to install an endoscope, the inner wall of the sleeve is provided with a plurality of evenly distributed transverse grooves, a first reciprocating screw is rotatably installed inside each of the transverse grooves, the sleeve is provided with a fixing plate with the same number as the transverse grooves, each of the first reciprocating screws is provided with a connecting rod structure for driving the fixing plate to approach or move away from the center of the sleeve, the sleeve is also provided with a driving structure for rotating the first reciprocating screw, annular grooves are provided at both ends of the outer surface of the sleeve, a plurality of support rods are provided in the annular grooves, the support rods are covered with an airbag close to the outer surface of the sleeve, a pushing structure is provided in the sleeve for driving the support rods away from the center of the sleeve, and the power input end of the pushing structure is connected to the driving structure.

[0009] Preferably, the connecting rod structure includes two sliders fixedly mounted on each of the first reciprocating screw rods, and the rotation of the first reciprocating screw rod drives the two sliders to approach each other. A connecting rod is hingedly mounted on the side of each slider, and the other end of the connecting rod is hingedly mounted on the side of the fixed plate.

[0010] Preferably, the driving structure includes a motor arranged in a accommodating groove inside the sleeve, a driving gear is fixedly installed on the power output end of the motor, and a double-sided gear ring is also arranged in the accommodating groove, the driving gear is meshed with the outer teeth of the double-sided gear ring, and the inner teeth of the double-sided gear ring are meshed and transmission-connected with a number of evenly distributed driven gears, and a cross bar is installed in the axial hole of each driven gear, and the cross bar is transmission-connected with the first reciprocating screw.

[0011] Preferably, the pushing structure includes a vertical rod rotatably installed inside the sleeve, the vertical rod and the cross rod are transmission connected, the power output end of the vertical rod is connected to a second reciprocating screw, and the second reciprocating screw is threadedly connected to the support rod.

[0012] Preferably, each of the support rods is provided with a groove, a connecting plate is provided between two adjacent grooves in the support rods, a limiting groove is provided on each connecting plate, a limiting block for limiting the connecting plate is provided in the limiting groove, and the limiting block is fixedly connected to the inner wall of the groove.

[0013] Preferably, a first ratchet assembly is provided between the cross bar and the first reciprocating screw rod, and power from the cross bar is transmitted to the first reciprocating screw rod through the first ratchet assembly.

[0014] Preferably, a second ratchet assembly is provided between the vertical rod and the second reciprocating screw rod, and the power from the vertical rod is transmitted to the second reciprocating screw rod through the second ratchet assembly.

[0015] The utility model has the following advantages:

[0016] 1. The utility model drives the first reciprocating screws to rotate and drive the connecting rod structure to move through the driving structure, so that the fixing plate connected to the connecting rod structure is close to the center of the sleeve, and the endoscope located in the sleeve is fixed. The distance between the fixing plate and the center of the sleeve is driven by the connecting rod structure, so that endoscopes of different sizes can be fixed. The pushing structure expands the airbag located on the surface of the support rod outward, so as to expand the intestinal folds, avoid the intestinal inner wall squeezing the lens and unable to fully observe, and it is cylindrical when withdrawing to avoid damage to the intestinal inner wall.

[0017] 2. The first reciprocating screw of the utility model drives the two sliders to move toward or away from each other, thereby changing the angle between the connecting rod and the first reciprocating screw to support the fixed plate, so that the fixed plate is close to or away from the center of the sleeve, and thus can fix endoscopes of different sizes. Specifically, when the two sliders move toward each other, the fixed plate is close to the center of the sleeve to clamp the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall front section structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0021] Figure 4 This is a side view structural diagram of the connection between the driving gear, the double-sided gear ring and the driven gear of the utility model;

[0022] Figure 5 This is a schematic diagram of the side view structure of the connection between the slider, the connecting rod and the fixing plate of the utility model;

[0023] Figure 6 This is a side view of the structure of the fixed plate distribution of the utility model;

[0024] Figure 7 This is a schematic diagram of the side cross-sectional structure of the support rod, air bag and connecting plate of the utility model;

[0025] Figure 8 For this utility model Figure 7 Enlarged structural diagram at point C in the middle.

[0026] In the figure, 1, sleeve; 2, motor; 3, driving gear; 4, double-sided gear ring; 5, driven gear; 6, cross bar; 7, first ratchet assembly; 8, first reciprocating screw; 9, cross groove; 10, slider; 11, connecting rod; 12, fixing plate; 13, vertical rod; 14, second ratchet assembly; 15, second reciprocating screw; 16, annular groove; 17, support rod; 18, airbag; 19, groove; 20, connecting plate; 21, limit block; 22, limit groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1 — Figure 8 The embodiment shown.

[0030] A therapeutic digestive endoscopy auxiliary device comprises a sleeve 1, wherein the inner hole in the sleeve 1 is used for installing an endoscope, the inner wall of the sleeve 1 is provided with a plurality of evenly distributed transverse grooves 9, a first reciprocating screw 8 is rotatably installed inside each of the transverse grooves 9, the sleeve 1 is provided with a fixing plate 12 having the same number as the transverse grooves 9, each of the first reciprocating screws 8 is provided with a connecting rod structure for driving the fixing plate 12 to approach or move away from the center of the sleeve 1, a driving structure for rotating the first reciprocating screw 8 is also provided inside the sleeve 1, annular grooves 16 are provided at both ends of the outer surface of the sleeve 1, a plurality of support rods 17 are provided in the annular grooves 16, the support rods 17 are covered with an air bag 18 near the outer surface of the sleeve 1, a pushing structure for driving the support rods 17 away from the center of the sleeve 1 is provided inside the sleeve 1, and the power input end of the pushing structure is connected to the driving structure.

[0031] See also Figure 1 , Figure 2 and Figure 6 As shown, firstly, the driving structure drives the first reciprocating screw 8 to rotate, and the rotation of the first reciprocating screw 8 drives the fixing plate 12 to approach the center of the sleeve 1 through the connecting rod structure, and then the position of the fixing plate 12 is adjusted so that it can fix endoscopes of different sizes, thereby improving the practicality of the device. In addition, the driving structure can also drive the pushing structure to move the support rod 17 away from the center of the sleeve 1 toward the outer side, so that the airbag 18 on the surface of the support rod 17 can contact the inner wall of the intestine, expand the position of the intestinal folds, and avoid the inner wall of the intestine squeezing the lens and making it impossible to fully observe.

[0032] See also Figure 6 As shown, in the present embodiment, there are four transverse grooves 9 on the inner wall of the sleeve 1, and there are also four corresponding first reciprocating screw rods 8, which are evenly distributed about the center of the sleeve 1. There are two annular grooves 16 located at both ends of the outer surface of the sleeve 1, and a plurality of support rods 17 form a circle in the annular groove 16. The airbag 18 is wrapped around the circle formed by the support rods 17. The support rods 17 expand outward, thereby also driving the airbag 18 to expand. The folds of the inner wall of the intestine are expanded by the airbag 18, thereby facilitating endoscopic observation. When the detection is completed and exited, the sleeve 1 and the airbag 18 on the outer surface are cylindrical to avoid damage to the inner wall of the intestine.

[0033] The connecting rod structure includes two sliders 10 fixedly mounted on each of the first reciprocating screw rods 8. The first reciprocating screw rod 8 rotates to drive the two sliders 10 to approach each other. A connecting rod 11 is hingedly mounted on the side of each slider 10, and the other end of the connecting rod 11 is hingedly mounted on the side of the fixed plate 12.

[0034] See also Figure 1 and Figure 3 As shown, the first reciprocating screw 8 rotates to drive the two sliders 10 to move closer to or away from each other. Specifically, since the two ends of the two connecting rods 11 are respectively hinged on the slider 10 and the fixed plate 12, when the first reciprocating screw 8 rotates to drive the two sliders 10 to move closer to each other, the two connecting rods 11 will open synchronously to drive the fixed plate 12 to move toward the center of the sleeve 1, thereby clamping the endoscope located between the four fixed plates 12, and the first reciprocating screw 8 drives the slider 10 to move to different positions to adjust and drive the fixed plate 12 to be located at different positions, so that endoscopes of different specifications and sizes can be clamped and fixed.

[0035] The driving structure includes a motor 2 arranged in a accommodating groove inside the sleeve 1, a driving gear 3 is fixedly installed at the power output end of the motor 2, and a double-sided gear ring 4 is also arranged in the accommodating groove, the driving gear 3 is meshed with the outer teeth of the double-sided gear ring 4, and the inner teeth of the double-sided gear ring 4 are meshed and transmission-connected with a plurality of evenly distributed driven gears 5, and a cross bar 6 is installed in the axial hole of each of the driven gears 5, and the cross bar 6 is transmission-connected with the first reciprocating screw 8.

[0036] See also Figure 1 , Figure 2 and Figure 4 As described, a double-sided gear ring 4 is rotatably installed in an annular mounting groove, and the double-sided gear ring 4, i.e., the inner ring and the outer ring are both provided with meshing teeth. The driving gear 3 is driven to rotate by the motor 2. Since the driving gear 3 is meshed with the outer teeth of the double-sided gear ring 4, the driving gear 3 rotates to drive the double-sided gear ring 4 to rotate. Since the driven gear 5 is meshed with the inner teeth of the double-sided gear ring 4, the double-sided gear ring 4 rotates to rotate the driven gear 5 inside it. The cross bar 6 is connected to the driven gear 5, so the rotation of the driven gear 5 also causes the cross bar 6 to rotate, thereby driving the first reciprocating screw rod 8 connected to the cross bar 6 to rotate. The rotation of the first reciprocating screw rod 8 provides power for the adjustment of the fixed plate 12.

[0037] In this example, the number of driven gears 5 and crossbars 6 is the same as the number of first reciprocating screws 8, which is four. Figure 4 As shown, each driven gear 5 is driven by the rotation of the double-sided gear ring 4, and the power source of the double-sided gear ring 4 comes from the power transmitted by the motor 2 to drive the driving gear 3 to rotate.

[0038] The pushing structure includes a vertical rod 13 rotatably installed inside the sleeve 1 , the vertical rod 13 and the cross rod 6 are transmission connected, the power output end of the vertical rod 13 is connected to a second reciprocating screw 15 , and the second reciprocating screw 15 is threadedly connected to the support rod 17 .

[0039] See also Figure 1 and Figure 2 As shown, the horizontal rod 6 rotates to drive the vertical rod 13 to rotate, and the vertical rod 13 drives the second reciprocating screw 15 to rotate. Since the second reciprocating screw 15 and the support rod 17 are threadedly connected, the rotation of the second reciprocating screw 15 drives the support rod 17 to move closer to or away from the second reciprocating screw 15, thereby driving the support rod 17 to extend and move toward the outer surface of the sleeve 1.

[0040] Specifically, a bevel gear is fixedly mounted on the outer surface of the crossbar 6 , and a bevel gear is also mounted on the power input end of the corresponding vertical bar 13 . The rotational power from the crossbar 6 is transmitted to the vertical bar 13 through the mutual meshing of the two bevel gears.

[0041] A groove 19 is provided on each of the support rods 17 , and a connecting plate 20 is provided between two adjacent grooves 19 in the support rods 17 . A limiting groove 22 is provided on each of the connecting plates 20 , and a limiting block 21 for limiting the connecting plate 20 is provided in the limiting groove 22 , and the limiting block 21 is fixedly connected to the inner wall of the groove 19 .

[0042] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, as the vertical rod 13 drives the second reciprocating screw rod 15 to rotate, the support rod 17 moves toward the outer surface of the sleeve 1, and as the support rod 17 moves outward in a circular shape, the connecting plate 20 slides in the two connected grooves 19, and the limit block 21 slides in the limit groove 22 to ensure the stability between the connecting plate 20 and the support rod 17. The limit block 21 also limits the sliding distance of the connecting plate 20. As the support rod 17 expands outward in a circular shape, the airbag 18 will be stretched open and contact with the inner wall of the intestine, so that the folds can be flattened, providing space for the movement of the endoscope and observing the lesions on the inner wall of the intestine. If the support rod 17 moves too far, the connecting plate 20 located between the two adjacent support rods 17 will also support the airbag 18 to a certain extent.

[0043] A first ratchet assembly 7 is provided between the cross bar 6 and the first reciprocating screw rod 8 , and power from the cross bar 6 is transmitted to the first reciprocating screw rod 8 through the first ratchet assembly 7 .

[0044] A second ratchet assembly 14 is disposed between the vertical rod 13 and the second reciprocating screw rod 15 , and power from the vertical rod 13 is transmitted to the second reciprocating screw rod 15 through the second ratchet assembly 14 .

[0045] In order to be able to drive the fixed plate 12 and the support rod 17 to move respectively by a power source, a first ratchet assembly 7 is set between the cross bar 6 and the first reciprocating screw 8, and a second ratchet assembly 14 is set between the vertical bar 13 and the second reciprocating screw 15. For example, when the cross bar 6 rotates forward, the first ratchet assembly 7 drives the first reciprocating screw 8 to rotate, so that the fixed plate 12 moves to clamp the endoscope. If the support rod 17 needs to move, it is only necessary to drive the cross bar 6 to rotate in the reverse direction and drive the second reciprocating screw 15 to rotate through the second ratchet assembly 14, thereby driving the support rod 17 to move. The forward and reverse directions of the cross bar 6 driving the fixed plate 12 and the support rod 17 to move can be set according to needs, and no specific restrictions are made here.

[0046] The working process of the utility model is as follows: the first reciprocating screw rod 8 is driven to rotate by the cross bar 6, so that the two sliders 10 move relative to each other, and then the fixing plate 12 moves toward the center to fix the endoscope. By controlling the moving distance of the fixing plate 12, endoscopes of different sizes can be fixed. The rotation of the cross bar 6 drives the second reciprocating screw rod 15 to rotate through the vertical rod 13, so that the support rod 17 expands to expand the airbag 18, so that the airbag 18 contacts the inner wall of the intestine.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A therapeutic digestive endoscope auxiliary device, comprising a sleeve (1), wherein the inner hole in the sleeve (1) is used to install an endoscope, and characterized in that: The inner wall of the sleeve (1) is provided with a plurality of evenly spaced transverse grooves (9), each of which is rotatably mounted with a first reciprocating screw (8), the sleeve (1) is provided with a fixing plate (12) having the same number as the transverse grooves (9), each of which is provided with a connecting rod structure for driving the fixing plate (12) to move closer to or away from the center of the sleeve (1), the sleeve (1) is also provided with a driving structure for rotating the first reciprocating screw (8), annular grooves (16) are provided at both ends of the outer surface of the sleeve (1), a plurality of support rods (17) are provided in the annular grooves (16), the support rods (17) are covered with an air bag (18) near the outer surface of the sleeve (1), the sleeve (1) is provided with a pushing structure for driving the support rods (17) to move away from the center of the sleeve (1), and the power input end of the pushing structure is connected to the driving structure.

2. A therapeutic digestive endoscopy auxiliary device according to claim 1, characterized in that: The connecting rod structure comprises two sliders (10) fixedly mounted on each of the first reciprocating screw rods (8); the first reciprocating screw rod (8) rotates to drive the two sliders (10) to approach each other; a connecting rod (11) is hingedly mounted on the side of each slider (10); the other end of the connecting rod (11) is hingedly mounted on the side of the fixing plate (12).

3. A therapeutic digestive endoscopy auxiliary device according to claim 1, characterized in that: The driving structure comprises a motor (2) arranged in a receiving groove inside the sleeve (1); a driving gear (3) is fixedly installed at the power output end of the motor (2); a double-sided gear ring (4) is also arranged in the receiving groove; the driving gear (3) is meshed with the external teeth of the double-sided gear ring (4); the internal teeth of the double-sided gear ring (4) are meshed and transmission-connected with a plurality of evenly distributed driven gears (5); a cross bar (6) is installed in the axial hole of each driven gear (5); the cross bar (6) is transmission-connected with the first reciprocating screw (8).

4. A therapeutic digestive endoscopy auxiliary device according to claim 3, characterized in that: The pushing structure comprises a vertical rod (13) rotatably mounted inside the sleeve (1), the vertical rod (13) and the cross rod (6) being transmission-connected, a second reciprocating screw (15) being connected to the power output end of the vertical rod (13), and the second reciprocating screw (15) being threadedly connected to the support rod (17).

5. A therapeutic digestive endoscopy auxiliary device according to claim 4, characterized in that: Each of the support rods (17) is provided with a groove (19), a connecting plate (20) is provided between two adjacent grooves (19) located in the support rods (17), each of the connecting plates (20) is provided with a limiting groove (22), a limiting block (21) for limiting the connecting plate (20) is provided in the limiting groove (22), and the limiting block (21) is fixedly connected to the inner wall of the groove (19).

6. A therapeutic digestive endoscopy auxiliary device according to claim 3, characterized in that: A first ratchet assembly (7) is provided between the cross bar (6) and the first reciprocating screw rod (8), and power from the cross bar (6) is transmitted to the first reciprocating screw rod (8) through the first ratchet assembly (7).

7. A therapeutic digestive endoscopy auxiliary device according to claim 4, characterized in that: A second ratchet assembly (14) is provided between the vertical rod (13) and the second reciprocating screw rod (15), and power from the vertical rod (13) is transmitted to the second reciprocating screw rod (15) through the second ratchet assembly (14).

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