Auxiliary traction device in endoscopic surgery
By designing an auxiliary traction device for endoscopic surgery, using components such as micro cylinders and guide rods, the problem of difficult lifting and stripping of excessively large lesions is solved, achieving more efficient pathological assessment and reducing the risk of recurrence.
Patent Information
- Application Number
- CN202420627988.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-28
AI Technical Summary
In endoscopic surgery, excessively large lesions are difficult to be effectively lifted and detached, resulting in difficulty in pathological evaluation and increased risk of recurrence.
An auxiliary traction device in endoscopic surgery is designed, including a bracket, a micro cylinder, a guide rod, a slider and a hook claw. The guide rod and a hook claw are driven through the up and down movement of the micro cylinder piston, embedded in the lesion and lifted to a suitable position, for easy peeling.
Effective lifting and dissection of excessively large lesions is achieved, improving the accuracy of pathological evaluation and reducing the risk of recurrence.
Smart Images
Figure CN222584556U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an auxiliary traction device in endoscopic surgery. Background Art
[0002] Commonly used resection methods include:
[0003] 1. Submucosal injection hot snare polypectomy (HSP) can be performed for 10mm-19mm sessile polyps, especially for superficial invasive lesions with a submucosal invasion depth of less than 1000μm, with en bloc EMR resection, but this procedure has certain requirements for the EMR diameter. For tumors larger than 20mm, segmental resection is often used, but accurate pathological evaluation is more difficult, and residual tumors also have a higher risk of recurrence.
[0004] 2. Larger polyps usually require ESD to achieve en bloc resection, which involves using a needle knife or an insulated sharp knife under endoscopy to cut into the mucosal layer to enter the submucosal space and carefully peel off the diseased submucosal layer to achieve the effect of peeling off the entire piece using the tip of the ESD knife.
[0005] Endoscopic submucosal dissection (ESD) has become a widely accepted minimally invasive treatment for early gastrointestinal cancer and submucosal tumors due to its high complete resection rate and good safety. The basic procedure consists of three steps: submucosal injection, circular incision of the mucosa around the lesion, and dissection of the submucosal tissue of the lesion. For some lesions that are difficult to expose during ESD, there are the following technical defects: the lesion is too large to be lifted and removed well.
[0006] Therefore, how to design an auxiliary traction device for endoscopic surgery that can conveniently lift oversized lesions during surgery has become an urgent problem to be solved. Utility Model Content
[0007] In view of the problems existing in the prior art, the utility model provides an auxiliary traction device for endoscopic surgery to solve at least one of the above technical problems.
[0008] The technical scheme of the utility model is: an auxiliary traction device for endoscopic surgery, comprising a bracket, a plurality of open grooves are arranged on the bracket, a micro cylinder is arranged at the inner center of the bracket, a rear earring is arranged at the cylinder end of the micro cylinder, the rear earring is installed on the horizontal screw, the piston end of the micro cylinder is arranged downward, one end of a plurality of guide rods is connected to the piston end of the micro cylinder, the other end of any guide rod is connected to two sliders arranged at intervals through a fixed plate, the two sliders are installed on corresponding linear rails, and the two linear rails are located on both sides of the open groove; a screw sleeve is arranged at the middle part of the bottom surface of any fixed plate, a hook claw is arranged in the screw sleeve, the hook claw is located in the open groove, the hook claw is an L-shaped structure, the outer ring sleeve of the L-shaped structure is provided with a silicone sleeve, the cross bar of the L-shaped structure is a claw part, and the claw part points to the center of the piston end.
[0009] After the lesion is found by gastroenteroscopy, the utility model adopts the upward movement of the piston of the micro-cylinder to drive the guide rod, the slider and the hook to move in sequence, so that the hook moves along the opening groove toward the center of the bracket until the claws of several hooks are embedded in the lesion (lesion tissue), so that the lesion mucosa is fully lifted, and the auxiliary traction device is moved to move along the horizontal screw until the lesion is suspended and pulled to a suitable position (pulled and suspended to normal mucosa) to fully expose the field of vision, and the rear earrings on the micro-cylinder are clamped from both sides by two nuts on the horizontal screw to position the auxiliary traction device, and the needle knife is used to completely peel off the lesion tissue and then remove it, so that the lesion that is too large can be conveniently lifted and peeled; the linear track guides the movement of the slider and the hook. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is the front view of the installation structure of the utility model.
[0011] Figure 2 for Figure 1 AA cross-section diagram.
[0012] Figure 3 for Figure 2 B view.
[0013] Figure 4 It is a top view of the installation structure of the utility model.
[0014] Figure 5 It is a schematic diagram of the structure of the micro cylinder piston end of the utility model after driving the guide rod and the hook claw to move.
[0015] In the figure: 1. bracket; 2. micro cylinder; 3. guide rod; 4. fixing plate; 5. screw sleeve; 6. hook claw; 7. opening groove; 101. top plate; 102. fixing column; 103. bottom plate. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings.
[0017] See also Figure 1-5 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.
[0018] Embodiment 1: An auxiliary traction device for endoscopic surgery, referring to Figure 1 , Figure 2 , Figure 3 , including a bracket 1, on which several open grooves 7 are provided, a micro cylinder 2 is provided at the inner center of the bracket 1, a rear earring is provided at the end of the cylinder body of the micro cylinder 2, and the rear earring is installed on the horizontal screw, the piston end of the micro cylinder 2 is arranged downward, and one end of several guide rods 3 is connected to the piston end of the micro cylinder 2, and the other end of any guide rod 3 is connected to two sliders arranged at intervals through a fixed plate 4, and the two sliders are installed on corresponding linear rails, and the two linear rails are located on both sides of the open groove 7; a screw sleeve 5 is provided in the middle of the bottom surface of any fixed plate 4, and a hook claw 6 is provided in the screw sleeve 5, and the hook claw 6 is located in the open groove 7, and the hook claw 6 is an L-shaped structure, and the outer ring sleeve of the L-shaped structure is provided with a silicone sleeve, and the cross bar of the L-shaped structure is a claw portion, and the claw portions all point to the center of the piston end. After the lesion is found by gastroenteroscopy, the utility model adopts the upward movement of the piston of the micro-cylinder to drive the guide rod, the slider and the hook to move in sequence, so that the hook moves along the opening groove toward the center of the bracket until the claws of several hooks are embedded in the lesion (lesion tissue), so that the lesion mucosa is fully lifted, and the auxiliary traction device is moved to move along the horizontal screw until the lesion is suspended and pulled to a suitable position (pulled and suspended to normal mucosa) to fully expose the field of vision, and the rear earrings on the micro-cylinder are clamped from both sides by two nuts on the horizontal screw to position the auxiliary traction device, and the needle knife is used to completely peel off the lesion tissue and then remove it, so that the lesion that is too large can be conveniently lifted and peeled; the linear track guides the movement of the slider and the hook.
[0019] Embodiment 2: Based on Embodiment 1, refer to Figure 4 , Figure 5The bracket 1 includes a top plate 101, which is connected to a bottom plate 103 via a fixing column 102. Both the top plate 101 and the bottom plate 103 are regular pentagonal plates. The opening slot 7 is close to the top corner of the regular pentagonal plate, and the fixing column 102 is close to the center of the edge of the regular pentagonal plate. The opening slot 7 and the fixing column 102 are both located on the line connecting the top corner of the regular pentagonal plate and the midpoint of the opposite side. The utility model adopts a top plate and a bottom plate of a regular pentagonal plate. The top plate is connected to the bottom plate via a fixing column to form an integrated bracket structure. The opening slot and the fixing column are both located on the line connecting the top corner of the regular pentagonal plate and the midpoint of the opposite side. The number of the opening slot and the fixing column is 5.
[0020] Embodiment 3: Based on Embodiment 2, the front end of the cylinder body of the micro cylinder 2 is provided with a front flange, which is mounted on the top plate 101 by several bolts, and the piston end of the micro cylinder 2 passes through the top plate 101 and is located in the bracket 1. The micro cylinder of the utility model is mounted on the top plate by the front flange mounting method, so as to complete the positioning and mounting of the micro cylinder.
[0021] Embodiment 4: Based on Embodiment 2, a pentagonal prism is provided on the piston end of the micro cylinder 2, and first ear plates arranged at intervals are respectively provided on the five vertical faces of the pentagonal prism, and one end of the guide rod 3 on any vertical face is located between the corresponding two first ear plates, and the guide rod 3 is installed in the ear hole of the first ear plate through a first pin shaft. The utility model adopts a pentagonal prism provided on the piston end of the micro cylinder, and two first ear plates are respectively provided on the five vertical faces of the pentagonal prism to clamp one end of a guide rod, and the guide rod is connected to the first ear plate through a first pin shaft, and the other ends of the five guide rods are respectively connected to the fixed plate.
[0022] Embodiment 5, on the basis of embodiment 3, any of the fixed plates 4 is provided with second ear plates arranged at intervals, the other end of the guide rod 3 is located between the two second ear plates, and the other end of the guide rod 3 is installed in the ear hole of the second ear plate through a second pin shaft. The utility model adopts two second ear plates provided on the fixed plate to clamp the other end of a guide rod, and the guide rod and the second ear plate are connected through a second pin shaft.
[0023] Embodiment 6: Based on embodiment 1, the end of the vertical rod of the L-shaped structure away from the horizontal rod is provided with a threaded section, which is screwed into the screw hole of the screw sleeve 5. The utility model adopts an L-shaped structure in which the vertical rod is provided with a threaded section at one end away from the horizontal rod, and the hook is connected to the screw hole of the screw sleeve through the threaded section.
[0024] 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. An auxiliary traction device for endoscopic surgery, comprising a bracket (1), characterized in that: The bracket (1) is provided with a plurality of open slots (7), the inner center of the bracket (1) is provided with a micro cylinder (2), the cylinder end of the micro cylinder (2) is provided with a rear earring, the rear earring is mounted on a horizontal screw rod, the piston end of the micro cylinder (2) is arranged downward, one end of a plurality of guide rods (3) is connected to the piston end of the micro cylinder (2), the other end of any guide rod (3) is connected to two sliders arranged at intervals through a fixed plate (4), the two sliders are mounted on corresponding linear rails, and the two linear rails are located on both sides of the open slot (7); a screw sleeve (5) is provided in the middle of the bottom surface of any fixed plate (4), a hook claw (6) is provided in the screw sleeve (5), the hook claw (6) is located in the open slot (7), the hook claw (6) is an L-shaped structure, the outer ring of the L-shaped structure is provided with a silicone sleeve, the cross bar of the L-shaped structure is a claw part, and the claw part points to the center of the piston end.
2. The auxiliary traction device for endoscopic surgery according to claim 1, characterized in that: The bracket (1) comprises a top plate (101), the top plate (101) being connected to a bottom plate (103) via a fixing column (102), the top plate (101) and the bottom plate (103) being both regular pentagonal plates, the opening groove (7) being close to the top corner of the regular pentagonal plate, the fixing column (102) being close to the center of the side line of the regular pentagonal plate, and the opening groove (7) and the fixing column (102) being both located on a line connecting the top corner of the regular pentagonal plate and the midpoint of the opposite side.
3. The auxiliary traction device for endoscopic surgery according to claim 2, characterized in that: A front flange is provided at the front end of the cylinder body of the micro cylinder (2), and the front flange is mounted on the top plate (101) by means of a plurality of bolts.
4. The auxiliary traction device for endoscopic surgery according to claim 2, characterized in that: A pentagonal prism is arranged on the piston end of the micro cylinder (2), and first ear plates arranged at intervals are respectively arranged on the five vertical faces of the pentagonal prism, one end of the guide rod (3) on any vertical face is located between the corresponding two first ear plates, and the guide rod (3) is installed in the ear hole of the first ear plate through a first pin shaft.
5. The auxiliary traction device for endoscopic surgery according to claim 3, characterized in that: Any of the fixing plates (4) is provided with second ear plates arranged at intervals, the other end of the guide rod (3) is located between the two second ear plates, and the other end of the guide rod (3) is installed in the ear hole of the second ear plate through a second pin shaft.
6. The auxiliary traction device for endoscopic surgery according to claim 1, characterized in that: A threaded section is arranged at one end of the vertical rod of the L-shaped structure away from the horizontal rod, and the threaded section is screwed into the screw hole of the screw sleeve (5).