Internal hemorrhoid loop ligature device for digestive endoscopy

Abstract

The utility model discloses an internal hemorrhoid loop ligature device for a digestive endoscope, relates to the technical field of medical auxiliary equipment, and provides the internal hemorrhoid loop ligature device for the digestive endoscope, which can be adjusted according to the diameters of the endoscope ends of different digestive endoscopes and comprises a loop ligature element and a handle element which are connected with each other. The ligation element comprises a connector end connected with the far end of the digestive endoscope and a ligation opening integrally formed with a connector, and is characterized in that an adjusting structure capable of adjusting the size according to the size of the digestive endoscope is arranged on the connector. According to the ligation device, the adjusting structure is arranged, and the first adjusting buckle, the adjusting rod, the second adjusting buckle, the adjusting ring, the threaded block and the extrusion block are matched with one another, so that the ligation element can be adjusted according to the diameters of the endoscope ends of different digestive endoscopes, and the application range of the ligation device is wider.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to an internal hemorrhoid ligation device for digestive endoscopy. Background Technology

[0002] Hemorrhoids have a very high incidence rate, and clinical treatment is divided into surgical and non-surgical treatments. Surgical treatments mainly include: thrombosed external hemorrhoidectomy, traditional hemorrhoidectomy, hemorrhoidopexy, and PPH surgery. Non-surgical treatments mainly include: general treatment, topical medication, oral medication, injection therapy, physical therapy, and rubber band ligation. Rubber band ligation requires the use of a ligation device.

[0003] The currently used 7-ring ligator consists of two main components: a ligation element and a handle element equipped with a guide wire and an endoscope fixator. The elastic ring material in the ligation element is molded polyisoprene. It is a single-use, non-sterile product, applicable for endoscopic ligation of esophageal varices and anorectal hemorrhoids.

[0004] However, in clinical use, the front end of the 7-ring ligator is too thick, making it difficult to operate. Furthermore, the maximum diameter of the ligation element is 11.5 mm, which cannot be adjusted according to the diameter of the end of the digestive endoscope of different diameters, making it inconvenient to use. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide an internal hemorrhoid ligation device for digestive endoscopy, wherein the ligation element can be adjusted according to the diameter of the endoscope tip of different digestive endoscopes.

[0006] The main idea of ​​the technical solution adopted in this utility model is to set an adjustable structure at the connection between the ligation element and the endoscope tip, so that the ligation element can be connected to endoscopes of different diameters, thereby expanding the applicability of the ligation device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An internal hemorrhoid ligation device for digestive endoscopy includes a ligation element and a handle element connected together. The ligation element includes a connector connected to the distal end of the digestive endoscope and a ligation port integrally formed with the connector. The device is characterized in that:

[0009] The connector is equipped with an adjustment structure that can adjust its size according to the size of the digestive endoscope.

[0010] Furthermore, the adjustment structure includes symmetrical slots at the upper and lower ends of the connector, an adjustment component fitted into the slots, and a fixing component located on the connector for fixing the adjustment component.

[0011] Furthermore, the adjustment assembly includes an adjustment ring located inside the joint and an adjustment unit located on the slot for adjusting the inner diameter of the adjustment ring.

[0012] Furthermore, the adjustment unit includes a first adjustment buckle that is engaged outside the slot, an adjustment rod that is sleeved inside the slot, a second adjustment buckle that is movably connected to the adjustment rod, and an adjustment ring that is movably connected to the second adjustment buckle. The first adjustment buckle is movably connected to the adjustment rod.

[0013] Furthermore, the fixing component includes a threaded block located on one side of the slot and connected to the connector, and a pressing block threadedly connected to the threaded block.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, the improvement of this utility model is that by setting an adjustment structure and through the cooperation of the first adjustment buckle, the adjustment rod, the second adjustment buckle, the adjustment ring, the threaded block and the squeezing block, the ligation element can be adjusted according to the diameter of the endoscope tip of different digestive endoscopes, thereby making the ligation device more widely applicable. Attached Figure Description

[0015] Figure 1 This is a top view of the ligating element of the ligating device of this utility model.

[0016] Figure 2 This is a top-view dynamic diagram of the ligating element of the ligating device of this utility model.

[0017] Figure 3 This is a side sectional view of the ligating element of the ligating device of this utility model.

[0018] Figure 4 This is a dynamic side-view cross-sectional view of the ligating element of the ligating device of this utility model.

[0019] Figure 5 This is an enlarged view of part A of this utility model.

[0020] Figure 6 This is a schematic diagram of the adjustment component in an embodiment of the present utility model.

[0021] Figure 7 This is a schematic diagram of the existing sling element structure in the embodiments of this utility model.

[0022] The components are: 1. Connector, 2. Loop, 3. Loop ring, 4. Adjusting rod, 5. Adjusting ring, 6. Adjusting buckle No. 1, 7. Threaded block, 8. Extrusion block, 9. Slotted, 10. Adjusting buckle No. 2. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] The currently used 7-ring ligator consists of two main components: a ligating element and a handle element equipped with a guide wire and an endoscope fixator. The elastic ring material in the ligating element is polyisoprene. It is a single-use, non-sterile product.

[0025] In clinical use, the front end of the 7-ring ligator is too thick, making it difficult to operate. Furthermore, the maximum diameter of the ligation element is 11.5 mm, which cannot be adjusted according to the diameter of the end of the digestive endoscope of different diameters, making it inconvenient to use.

[0026] To address the aforementioned problems, this application discloses an internal hemorrhoid ligation device for digestive endoscopy. Please refer to [link to relevant documentation]. Figures 1-7 The hemorrhoid ligator for digestive endoscopy includes a ligation element and a handle element, which are connected together. The ligation element includes a connector 1 connected to the distal end of the digestive endoscope and a ligation port 2 integrally formed with the connector 1. It should be noted that this application does not improve the handle element or the connection method between the ligation element and the handle element. For the structure of the handle element and the connection method between the ligation element and the handle element, please refer to the Boston 7-ring ligator manufactured by Boston Scientific International Co., Ltd., which will not be elaborated here.

[0027] Because the dimensions of the connectors in existing ligation elements are relatively fixed, the size of connector 1 cannot be adjusted according to the size of different digestive endoscopes, limiting the types of digestive endoscopes that can be used. For example, the diameter range of connector 1 in existing ligation elements is 8.6-11.5 mm, suitable for gastroscopes, while the smallest diameter of the endpiece of a colonoscope used for ligating internal hemorrhoids is 11.7 mm. Therefore, the connectors of existing ligation elements are not suitable for colonoscopes. Furthermore, to make the ligation device more compatible with ligation devices for internal hemorrhoids, the appropriate number of ligation rings 3 needs to be changed to 3 rings, and the wire connecting the ligation device needs to be longer. Currently, the length of a colonoscope is 130 cm for the insertion part, and with the addition of the operating part of approximately 20 cm, the wire connecting the ligation device also needs to be greater than 150 cm, with 160 cm being more suitable.

[0028] Therefore, this application provides an adjustment structure on the connector 1 that can adjust its size according to the size of the digestive endoscope. The adjustment structure includes slots 9 symmetrically opened at the upper and lower ends of the connector 1, an adjustment component fitted in the slots 9, and a fixing component located on one side of the slots 9.

[0029] More specifically, the inherent diameter of the connector 1 in this application is 15mm, and the adjustable part is 8-13.5mm. That is to say, the adjustable range of the diameter of the adjusting ring 5 in this application is 8-13.5mm, which is suitable for the endoscope tip of most digestive endoscopes. Taking a colonoscope as an example, the smallest diameter of the colonoscope tip is 11.7mm. Therefore, when it is necessary to fit the colonoscope tip into the connector of this application, it is only necessary to manually adjust the adjusting ring 5 to a size that matches the colonoscope tip.

[0030] The adjustment assembly includes a first adjustment buckle 6 that is snapped onto the outside of the slot 9, an adjustment rod 4 that is sleeved inside the slot 9, a second adjustment buckle 10 that is connected to the adjustment rod 4, and an adjustment ring 5 that is fixedly connected to the second adjustment buckle 10. The first adjustment buckle 6 is hinged to the adjustment rod 4.

[0031] It should be noted that the first adjusting buckle 6, the second adjusting buckle 10, and the adjusting rod 4 are all made of medical-grade stainless steel, while the adjusting ring 5 and the connector 1 are made of polyisoprene, also known as "natural latex," which is elastic. The first adjusting buckle 6 and the second adjusting buckle 10 are cylindrical. One end of the second adjusting buckle 10 is bonded to the adjusting ring 5, and the adjusting rod 4 is movably connected to the other end of the second adjusting buckle 10. The adjusting ring 5 does not affect the rotation of the adjusting rod 4 on the second adjusting buckle 10. Figure 6 As shown, the first adjusting buckle 6, the second adjusting buckle 10, and the adjusting rod 4 are connected in a triangle. There is a large gap between each of the first adjusting buckles 6 to allow for subsequent adjustment of the distance between them. The relative distance between the first adjusting buckles 6 and the adjusting rod 4 can be manually adjusted to adjust the size of the adjusting ring 5 connected to the second adjusting buckle 10. For example, if the diameter of the adjusting ring 5 needs to be increased, the first adjusting buckles 6 can be manually spread out in the slot 9 to increase the distance between them. The adjusting rod 4 can then be moved on the first adjusting buckles 6 until the inclination increases, changing the acute triangle formed by the two adjusting rods 4, the two first adjusting buckles 6, and the second adjusting buckle 10 into an obtuse triangle. This increases the inclination of the two sides of the triangle, i.e., the two adjusting rods 4, which in turn causes the second adjusting buckle 10 to increase the diameter of the adjusting ring 5.

[0032] The diameter of the slot 9 is compatible with the adjusting rod 4 and smaller than the first adjusting buckle 6. Therefore, the adjusting rod 4 can pass through the slot 9, while the first adjusting buckle 6 cannot pass through the slot 9 and will be stuck outside the slot 9. Furthermore, the adjusting rod 4 is movably connected to the first adjusting buckle 6, and the adjusting rod 4 can move in the slot 9, which facilitates subsequent adjustment of the position of the adjusting rod 4 in the slot 9, thereby making it convenient to adjust the size of the adjusting ring 5.

[0033] After the size of the adjusting ring 5 is adjusted, a fixing component can be used to fix the first adjusting buckle 6 and the adjusting rod 4 connected to the first adjusting buckle 6, thereby achieving the effect of fixing the adjusted ring 5. The fixing component includes a threaded block 7 located on one side of the slot 9 and connected to the connector 1, and a pressing block 8 threadedly connected to the threaded block 7. The pressing block 8 has internal threads that match the threads on the threaded block 7, such as... Figure 3 and Figure 4 As shown, the pressing block 8 rotates on the threaded block 7 until the pressing block 8 can press and fix the first adjusting buckle 6 and the adjusting rod 4 connected to the first adjusting buckle 6. Example

[0034] When using the internal hemorrhoid ligator for digestive endoscopy of this application, the ligator must first be installed. The installation steps are the same as those for the Boston 7-ring ligator. Since the installation steps for the Boston 7-ring ligator are existing technology, they will not be described in detail here. The only difference is that the ligating element in the ligator of this application can be adaptively adjusted according to different sizes of digestive endoscopes. Since there are many types of digestive endoscopes, this explanation will use a colonoscope used for internal hemorrhoid ligation as an example. The smallest diameter of the colonoscope tip is 11.7 cm. When connecting the colonoscope tip to connector 1, the diameter of the adjusting ring 5 needs to be increased. This can be done by manually spreading the first adjusting buckle 6 in the slot 9 to increase the distance between the first adjusting buckles 6, and moving the adjusting rod 4 on the first adjusting buckle 6 until the inclination increases. This changes the acute triangle formed by the two adjusting rods 4, the two first adjusting buckles 6, and the second adjusting buckle 10 into an obtuse triangle. This increases the inclination of the two sides of the triangle, i.e., the two adjusting rods 4, which in turn causes the second adjusting buckle 10 to increase the diameter between the adjusting rings 5. The diameter of the adjusting ring 5 is increased until it matches the size of the colonoscope tip.

[0035] After the colonoscope is installed, the following surgical steps need to be performed on the patient:

[0036] 1. Preoperative anesthesia

[0037] Before the operation, the patient should keep a good mood, change into surgical gown, and then adopt a suitable lying position. The pain nerves are temporarily blocked by intravenous anesthesia, inhalation anesthesia, etc., to induce the patient to fall asleep.

[0038] 2. Insert the colonoscope

[0039] The colonoscope is then inserted into the intestines through the anus until the internal hemorrhoids are visible.

[0040] 3. Negative pressure suction for varicose veins

[0041] The internal hemorrhoids are drawn into the connector 1 at the tip of the endoscope by negative pressure suction.

[0042] 4. Release the ligature ring

[0043] After securing the internal hemorrhoid, the ligation ring 3 on connector 1 should be released to the internal hemorrhoid site in a timely manner;

[0044] 5. Rubber band ligation of blood vessels

[0045] After the ligation ring 3 is released, it will ligate the root of the hemorrhoid, causing it to become blocked, and the blood flow in the venous cluster cannot pass through.

[0046] After undergoing internal hemorrhoid ligation, patients should rest in bed and avoid eating hard, spicy, or irritating foods, such as sugarcane, chili peppers, and garlic, to prevent affecting wound healing.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hemorrhoid ligation device for digestive endoscopy, comprising a ligation element and a handle element connected together, wherein the ligation element includes a connector (1) connected to the distal end of a digestive endoscope, and a ligation port (2) integrally formed with the connector (1), characterized in that: The connector (1) is provided with an adjustment structure that can adjust the size according to the size of the digestive endoscope.

2. The internal hemorrhoid ligation device for digestive endoscopy according to claim 1, characterized in that: The adjustment structure includes slots (9) symmetrically opened at the upper and lower ends of the connector (1), an adjustment component sleeved in the slots (9), and a fixing component located on the connector (1) for fixing the adjustment component.

3. The internal hemorrhoid ligation device for digestive endoscopy according to claim 2, characterized in that: The adjustment assembly includes an adjustment ring (5) located inside the connector (1) and an adjustment unit located on the slot (9) for adjusting the inner diameter of the adjustment ring (5).

4. The internal hemorrhoid ligation device for digestive endoscopy according to claim 3, characterized in that: The adjustment unit includes a first adjustment buckle (6) that is locked outside the slot (9), an adjustment rod (4) that is sleeved inside the slot (9), a second adjustment buckle (10) that is movably connected to the adjustment rod (4), and an adjustment ring (5) that is movably connected to the second adjustment buckle (10). The first adjustment buckle (6) is movably connected to the adjustment rod (4).

5. The internal hemorrhoid ligation device for digestive endoscopy according to claim 4, characterized in that: The fixing component includes a threaded block (7) located on one side of the slot (9) and connected to the connector (1), and an extrusion block (8) threadedly connected to the threaded block (7).

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