Foreign body forceps for endoscope

Abstract

This utility model relates to the field of endoscopy technology and provides a foreign body clamp for endoscopy, comprising: an outer tube with two clamping holes fixedly connected to the outer surface of the outer tube near its top; a long shaft movably embedded inside the two clamping holes, with two rotating disks fixedly sleeved on the outer surface of the long shaft; and a rotating roller fixedly connected to the opposite surfaces of the two rotating disks. In use, by rotating a threaded rod inside the long shaft, the threaded rod disengages from the clamping holes. Rotating the circular shaft then drives the long shaft to rotate, which in turn drives the rotating roller to rotate. The rotating roller winds up a pull rod, which in turn moves the long rod, which in turn moves a moving block backward. Meanwhile, the roller rolls inside a groove, limiting the movement of multiple clamping strips. The multiple clamping strips then move inward, thereby clamping the foreign object.

Description

Technical Field

[0001] This utility model relates to the field of endoscope technology, and in particular to a foreign body forceps for endoscopes. Background Technology

[0002] Endoscopic submucosal dissection (ESD) is a minimally invasive endoscopic technique that uses various electrocautery devices to dissect the submucosa of larger lesions. It can treat precancerous lesions such as giant polyps, laterally developing tumors, severe dysplasia, and high-grade intraepithelial neoplasia of the gastrointestinal tract, as well as early esophageal and gastrointestinal cancers and submucosal tumors of the esophagus and gastrointestinal tract. This technique allows for en bloc resection of larger lesions and provides accurate pathological staging. With the continuous development of endoscopic consumables and instruments, ESD has become the preferred treatment method for early gastrointestinal cancers and precancerous lesions, offering advantages such as definite efficacy, minimal trauma, rapid recovery, and the ability to obtain complete and accurate pathological diagnoses.

[0003] The existing publicly disclosed patent number is CN217286012U, which describes a foreign body forceps for endoscopy. This forceps mimics a surgeon's common operating habit: pulling back surgical instruments is typically a surgical procedure. It features a linkage structure where pulling back a slip ring causes a first drive rod to move a second and third drive rod.

[0004] The above scheme drives the second swing arm connected to the second drive rod and the first swing arm on the third drive rod to move away from each other to open the target tissue, so that the surgeon can obtain a good field of vision and effectively perform ESD operation on the target tissue. However, when using it, the foreign body forceps has a limited length when clamping foreign bodies, making it impossible to clamp deeper areas. Secondly, in the medical field, the clamped objects are often not in a vertical position. Utility Model Content

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a foreign body forceps for endoscopy, comprising: an outer tube,

[0006] Two locking holes are used to securely connect the outer tube to its outer surface near the top.

[0007] A long shaft is movably fitted inside two locking holes, and two rotating disks are fixedly sleeved on the outer surface of the long shaft;

[0008] A rotating roller is fixedly connected to the opposite surfaces of two rotating disks. A pull rod is movably sleeved on the surface of the rotating roller. One end of the long shaft is fixedly connected to a rotating shaft. Multiple locking holes are opened on the outer surface of one of the locking holes. A limit component is provided on the surface of the rotating shaft.

[0009] The technical advantages of adopting the above-mentioned further solution are: it is used to rewind the pull rod, which facilitates the movement of the pull rod and the moving block. The long shaft can be rotated more precisely during rewinding, and it is more effective for clamping smaller objects.

[0010] In a preferred embodiment, the limiting component includes: an L-shaped block, a pull rod movably embedded inside the L-shaped block, a limiting block fixedly connected to one end of the pull rod, a spring fixedly connected to the outer surface of the limiting block, and a locking rod fixedly connected to the outer surface of the limiting block, the locking rod being movably embedded inside one of the locking holes.

[0011] The technical effect of adopting the above-mentioned further solution is: pulling the pull rod drives the limiting block to move. At this time, the limiting block drives the locking rod to move and disengage from the inside of the locking hole. Under the elastic limit of the spring, the limiting block is attached to the surface of the rotating shaft, and the locking rod is locked inside the locking hole, thereby limiting the rotation roller.

[0012] In a preferred embodiment, the limiting component further includes a threaded rod, which is movably embedded inside the rotating shaft and in one of the retaining holes.

[0013] The technical effect of adopting the above-mentioned further solution is that the rotating threaded rod is embedded inside the locating hole to limit the rotation of the roller.

[0014] In a preferred embodiment, a hollow ring is fixedly connected to the inner wall of the outer tube, and multiple connecting strips are fixedly connected to the outer surface of the hollow ring. Rollers are rotatably connected to the outer surfaces of the multiple connecting strips. A movable block is provided inside the hollow ring, and clamping strips are rotatably connected to the outer surface of the movable block through a rotating rod.

[0015] The technical effect of adopting the above-mentioned further solution is that the pull rod drives the long rod to move, the long rod drives the moving block to move backward, at this time the roller rolls inside the slide groove to limit the multiple clamping bars, and at this time the multiple clamping bars move inward to clamp the foreign object.

[0016] In a preferred embodiment, the outer surfaces of the plurality of clamping strips are provided with sliding grooves, the plurality of rollers roll on the surface of the sliding grooves, the outer surface of the movable block is fixedly connected to a long rod, one end of the long rod is fixedly connected to one end of the pull rod, the outer surface of the hollow ring is fixedly connected to a fixed plate, the long rod is movably embedded in the interior of the fixed plate, the outer surface of the fixed plate is fixedly connected to a plurality of springs, one end of the plurality of springs is fixedly connected to the surface of the movable block.

[0017] The technical effect of adopting the above-mentioned further solution is that when the rotating roller is rotated in the opposite direction, the moving block moves forward under the limit of the second spring. At this time, the clamping bar opens, and the clamped object can be released after it opens.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] 1. In use, this utility model involves rotating the threaded rod inside the long shaft, at which point the threaded rod disengages from the clamping hole. Then, rotating the round shaft drives the long shaft to rotate, which in turn drives the rotating roller to rotate. The rotating roller winds up the pull rod, which in turn drives the long rod to move. The long rod then drives the moving block to move backward. At this time, the roller rolls inside the slide groove to limit the movement of multiple clamping strips. The multiple clamping strips then move inward to clamp the foreign object.

[0020] 2. In use, the rotating threaded rod is embedded inside the clamping hole to limit the rotation of the roller. At this time, pulling the outer tube can remove the foreign object from the patient's body. Rotating the roller in the opposite direction will cause the moving block to move forward under the limitation of the second spring. At this time, the clamping bar opens, which can release the clamped object. At the same time, the pull rod can be pulled to move the limiting block. At this time, the limiting block drives the clamping rod to move and disengage from the inside of the clamping hole. Under the elastic limit of the first spring, the limiting block is attached to the surface of the rotating shaft, and the clamping rod is clamped inside the clamping hole, thereby limiting the rotation of the roller. Attached Figure Description

[0021] Figure 1 This utility model provides a three-dimensional structural diagram of a foreign body forceps for endoscopy;

[0022] Figure 2 This utility model provides a schematic diagram of the internal structure of a foreign body forceps for endoscopy;

[0023] Figure 3 This utility model provides a schematic diagram of a foreign body forceps for endoscopes with a separate outer tube and inner tube structure.

[0024] Figure 4 This invention presents a schematic diagram of another limiting structure for foreign body forceps used in endoscopy.

[0025] Legend: 101. Outer tube; 102. Rotating disk; 103. Rotating roller; 104. Long shaft; 105. Locking hole; 106. Threaded rod; 107. L-shaped block; 108. Spring 1; 109. Limiting block; 110. Locking rod; 111. Pull rod; 112. Fixed disk; 113. Spring 2; 114. Moving block; 115. Clamping bar; 116. Slide groove; 117. Roller; 118. Connecting bar; 119. Hollow ring; 120. Long rod. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Please see Figures 1 to 4 This utility model provides a foreign body clamp for endoscopy, comprising: an outer tube 101 with two locking holes 105 fixedly connected to the outer surface of the outer tube 101 near its top; a long shaft 104 movably embedded inside the two locking holes 105, with two rotating disks 102 fixedly sleeved on the outer surface of the long shaft 104; a rotating roller 103 fixedly connected to the opposite surfaces of the two rotating disks 102, with a pull rod 111 movably sleeved on the surface of the rotating roller 103; a rotating shaft fixedly connected to one end of the long shaft 104; multiple locking holes 105 are provided on the outer surface of one of the locking holes 105; and a limit component is provided on the surface of the rotating shaft for winding the pull rod 111, facilitating the movement of the moving block 114 by the pull rod 111. The rotating long shaft 104 provides more precise winding and is more effective for clamping smaller objects.

[0029] like Figures 1 to 4 As shown, the limiting assembly includes: an L-shaped block 107, with a pull rod 111 movably embedded inside the L-shaped block 107. One end of the pull rod 111 is fixedly connected to a limiting block 109. A spring 108 is fixedly connected to the outer surface of the limiting block 109, and a locking rod 110 is fixedly connected to the outer surface of the limiting block 109. The locking rod 110 is movably embedded inside one of the locking holes 105. The limiting assembly also includes: a threaded rod 106, which is movably embedded inside the rotating shaft. The threaded rod 106 is movably embedded in one of the locking holes 105. Rotating the threaded rod 106 embedded inside the locking hole 105 limits the rotation of the rotating roller 103.

[0030] In another embodiment: Pulling the lever 111 causes the limiting block 109 to move. At this time, the limiting block 109 causes the locking rod 110 to move and disengage from the inside of the locking hole 105. Under the elastic limit of the spring 108, the limiting block 109 is attached to the surface of the rotating shaft, and the locking rod 110 is locked inside the locking hole 105, thereby limiting the rotation roller 103.

[0031] like Figures 1 to 4As shown, a hollow ring 119 is fixedly connected to the inner wall of the outer tube 101. Multiple connecting strips 118 are fixedly connected to the outer surface of the hollow ring 119. Rollers 117 are rotatably connected to the outer surface of the multiple connecting strips 118. A movable block 114 is provided inside the hollow ring 119. Clamping strips 115 are rotatably connected to the outer surface of the movable block 114 through a rotating rod. The pull rod 111 drives the long rod 120 to move, and the long rod 120 drives the movable block 114 to move backward. At this time, the rollers 117 roll inside the slide groove 116 to limit the multiple clamping strips 115. At this time, the multiple clamping strips 115 move inward to clamp the foreign object.

[0032] like Figures 1 to 4 As shown, multiple clamping strips 115 have grooves 116 on their outer surfaces, and multiple rollers 117 roll on the surface of the grooves 116. A long rod 120 is fixedly connected to the outer surface of the moving block 114, and one end of the long rod 120 is fixedly connected to one end of the pull rod 111. A fixed plate 112 is fixedly connected to the outer surface of the hollow ring 119, and the long rod 120 is movably embedded inside the fixed plate 112. Multiple springs 113 are fixedly connected to the outer surface of the fixed plate 112, and one end of each spring 113 is fixedly connected to the surface of the moving block 114. When the rotating roller 103 is rotated in the opposite direction, the moving block 114 moves forward under the limitation of the springs 113. At this time, the clamping strips 115 open, and the clamped object can be released.

[0033] Working principle: During use, rotating the threaded rod 106 moves inside the long shaft 104, causing it to disengage from the clamping hole 105. Rotating the round shaft then drives the long shaft 104 to rotate, which in turn drives the rotating roller 103 to rotate. The rotating roller 103 winds up the pull rod 111, which in turn moves the long rod 120. The long rod 120 then moves the moving block 114 backward. Meanwhile, the roller 117 rolls inside the slide groove 116, limiting the movement of multiple clamping strips 115. The multiple clamping strips 115 then move inward, thus clamping the foreign object. The threaded rod 106 is then engaged in the clamping hole 105. The rotating roller 103 is limited inside the device. At this time, pulling the outer tube 101 can remove the foreign object from the patient's body. When the rotating roller 103 is rotated in the opposite direction, the moving block 114 moves forward under the limitation of the second spring 113. At this time, the clamping bar 115 opens, which can release the clamped object. At the same time, the pull rod 111 can be pulled to move the limiting block 109. At this time, the limiting block 109 moves the locking rod 110 to disengage from the inside of the locking hole 105. Under the elastic limit of the first spring 108, the limiting block 109 is attached to the surface of the rotating shaft, and the locking rod 110 is locked inside the locking hole 105, thereby limiting the rotating roller 103.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An endoscopic foreign body forceps, comprising: The outer tube (101) is characterized in that, Two snap holes (105) are fixedly connected to the outer surface of the outer tube (101) near its top; A long shaft (104) is movably embedded inside two slots (105), and two rotating disks (102) are fixedly sleeved on the outer surface of the long shaft (104); A rotating roller (103) is fixedly connected to the opposite surfaces of two rotating disks (102). A pull rod (111) is movably sleeved on the surface of the rotating roller (103). One end of the long shaft (104) is fixedly connected to a rotating shaft. Multiple locking holes (105) are provided on the outer surface of one of the locking holes (105). A limit component is provided on the surface of the rotating shaft.

2. The endoscopic foreign body forceps according to claim 1, characterized in that: The limiting component includes: an L-shaped block (107), a pull rod (111) is movably embedded inside the L-shaped block (107), one end of the pull rod (111) is fixedly connected to a limiting block (109), a spring (108) is fixedly connected to the outer surface of the limiting block (109), and a locking rod (110) is fixedly connected to the outer surface of the limiting block (109), the locking rod (110) being movably embedded inside one of the locking holes (105).

3. The endoscopic foreign body forceps according to claim 1, characterized in that: The limiting component further includes a threaded rod (106), which is movably embedded inside the rotating shaft and is movably embedded in one of the locking holes (105).

4. The endoscopic foreign body forceps according to claim 3, characterized in that: A hollow ring (119) is fixedly connected to the inner wall of the outer tube (101), and a plurality of connecting strips (118) are fixedly connected around the outer surface of the hollow ring (119).

5. The endoscopic foreign body forceps according to claim 4, characterized in that: Rollers (117) are rotatably connected to the outer surfaces of the multiple connecting strips (118), and a movable block (114) is provided inside the hollow ring (119). Clamping strips (115) are rotatably connected to the outer surfaces of the movable block (114) through rotating rods.

6. The endoscopic foreign body forceps according to claim 5, characterized in that: The outer surfaces of the plurality of clamping strips (115) are provided with grooves (116), the plurality of rollers (117) roll on the surface of the grooves (116), and the outer surface of the moving block (114) is fixedly connected with a long rod (120).

7. The endoscopic foreign body forceps according to claim 6, characterized in that: One end of the long rod (120) is fixedly connected to one end of the pull rod (111), and a fixing plate (112) is fixedly connected to the outer surface of the hollow ring (119).

8. The endoscopic foreign body forceps according to claim 7, characterized in that: The long rod (120) is movably embedded inside the fixed plate (112), and a plurality of springs (113) are fixedly connected to the outer surface of the fixed plate (112), with one end of each spring (113) fixedly connected to the surface of the moving block (114).

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