Endoscope electrotome sheath fixing device

Abstract

The utility model relates to an endoscopic electrotome sheath fixing device, which is characterized in that firstly, a fixing seat, a bandage and a binding convex column are arranged, so that the endoscopic electrotome sheath fixing device can be stably arranged on an endoscopic in a sleeving manner, and a firm fixing effect is realized through winding connection of the bandage and insertion of the binding convex column. A locking device is further arranged, and through cooperation of a supporting plate, a locking clamp and a locking belt, clamping and fixing of the electrotome sheath are achieved. In the sliding process of the locking belt, the locking clamp can be driven to move or deform, so that the clamping hole is tightened, and the electrotome sheath is firmly clamped. Thus, the electrotome sheath can be conveniently and rapidly clamped and fixed, the clamping effect is reliable, the electrotome sheath can be effectively prevented from sliding accidentally in the operation process, the problem of misoperation is effectively avoided, the stability and reliability of operation are improved, the complexity of repeated adjustment of medical staff in the operation process is avoided, and the operation efficiency is improved. And the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of endoscopes, in particular to a device for fixing a scabbard of an endoscope electric knife. Background Art

[0002] During medical surgery, the electric knife is a commonly used surgical instrument, and its safety and stability are of vital importance. The electric knife usually consists of two parts: the electric knife head and the electric knife sheath. The electric knife sheath is not only used to protect the knife head, but also plays a role in guiding the movement of the knife head. However, in actual use, the existing electric knife sheath design often has the problem of accidental slippage, which brings considerable risks to the surgical process.

[0003] Specifically, since the doctor's operation during surgery needs to be precise and stable, the accidental slip of the electrosurgical sheath may lead to inaccurate cutting of the surgical site, and may even accidentally injure the surrounding normal tissues, causing unnecessary pain and damage to the patient. In addition, slippage may also prolong the operation time, affect the efficiency of the operation, and increase medical costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for fixing a scabbard of an endoscopic electrosurgical knife, which can solve the problem that the scabbard of the electrosurgical knife is prone to accidental sliding.

[0005] The utility model provides an endoscopic electrosurgical knife sheath fixing device, which comprises:

[0006] A fixing device, the fixing device comprising a fixing seat, a binding strap and a binding boss, the fixing seat is provided with an avoidance hole, the binding strap and the binding boss are respectively arranged on the fixing seat, the binding strap is provided with a plurality of binding holes, the fixing seat is used to be correspondingly sleeved on the endoscope, so that the biopsy plug is correspondingly exposed in the avoidance hole, the binding strap is configured to be wrapped around the endoscope, and the binding boss is detachably inserted into any of the binding holes; and

[0007] A locking device, the locking device comprising a support plate, a locking clip and a locking belt, the support plate is arranged on the fixing seat, a locking hole is provided on the support plate, the locking clip is arranged on the support plate, a clamping hole for the power supply knife to pass through is provided on the locking clip, the locking belt passes through the locking hole and is connected to the locking clip, and the locking hole is tightly matched with the locking belt;

[0008] When the locking belt slides relative to the locking hole, the locking belt drives the locking clamp to move or deform, so that the clamping hole is tightened and clamps the electric knife sheath.

[0009] Preferably, a deformation gap is further provided on the locking clip, and the deformation gap extends inward from the outer edge of the locking clip to communicate with the clamping hole, so that the locking clip forms a deformation arm on one side of the deformation gap, and the locking belt is connected to the deformation arm;

[0010] Wherein, the deformable arm is configured to be deformable under the drive of the locking belt, thereby tightening or releasing the clamping hole.

[0011] Preferably, the endoscopic electrosurgical knife sheath fixing device includes a plurality of the locking devices, and each of the support plates is arranged on the fixing seat.

[0012] Preferably, the endoscopic electrosurgical knife sheath fixing device includes two locking devices, and the two support plates are both arranged on the fixing seat, and the two support plates are symmetrically arranged around the avoidance hole.

[0013] Preferably, the thickness of the locking band gradually increases in a direction away from the locking clip; or

[0014] The width of the clamping hole gradually decreases toward the direction approaching the biopsy plug.

[0015] Preferably, a rounded corner is provided on the hole wall of the clamping hole.

[0016] Preferably, the fixing seat comprises a contoured tube wall and a fixing plate, the contoured tube wall is matched with the outer side wall of the endoscope, the binding strap and the binding boss are both arranged on the contoured tube wall, the avoidance hole is located on the fixing plate, and the fixing plate is connected to the contoured tube wall;

[0017] Wherein, the fixing plate is configured to be able to abut against the endoscope under the drive of the contoured cylinder wall.

[0018] Preferably, the fixing device includes two straps and two binding bosses, and the two straps and the two binding bosses are all arranged on the fixing seat. Each strap is provided with a plurality of binding holes, and each strap is configured to be wrappable around the endoscope so that the binding bosses can be aligned and inserted into the binding holes.

[0019] Preferably, an anti-loosening protrusion is provided on the binding boss, and an insertion chamfer is also provided on the end of the binding boss.

[0020] Preferably, the straps comprise elastic straps.

[0021] The implementation of this utility model has the following beneficial effects:

[0022] The utility model relates to a device for fixing an endoscopic electrosurgical knife sheath. First, the utility model provides a fixing seat, a binding belt and a binding boss, so that the device can be stably mounted on the endoscope, and a firm fixing effect is achieved by wrapping the binding belt and inserting the binding boss. A locking device is further provided, and the electrosurgical knife sheath is clamped and fixed by the cooperation of a support plate, a locking clamp and a locking belt. During the sliding process, the locking belt can drive the locking clamp to move or deform, so that the clamping hole is tightened and the electrosurgical knife sheath is firmly clamped. In this way, the electrosurgical knife sheath can be conveniently clamped and fixed, and the clamping effect is reliable, which can effectively prevent the electrosurgical knife sheath from accidentally sliding during the operation, effectively avoid the problem of misoperation, and improve the stability and reliability of the surgical operation, thereby eliminating the tediousness of repeated adjustments by medical staff during the operation, and improving the efficiency of the operation.

[0023] Furthermore, by setting the straps and binding bosses, the fixing seat on the endoscope can be detached, so that the device can be flexibly adjusted as needed during use to meet the needs of different surgical scenarios. At the same time, this design also facilitates the cleaning and disinfection of the device, which is conducive to ensuring the hygiene and safety of the surgical environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0025] Figure 1 It is a schematic diagram of the structure of the endoscopic electrosurgical knife sheath fixing device in some embodiments of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure in which the endoscopic electrosurgical knife sheath fixing device is assembled on the endoscope in some embodiments of the utility model;

[0027] Figure 3 From another perspective Figure 2 The schematic diagram of the structure of the endoscopic electrosurgical knife sheath fixing device and the endoscope is shown;

[0028] Figure 4 From another perspective Figure 2 The schematic diagram of the structure of the endoscopic electrosurgical knife sheath fixing device and the endoscope is shown;

[0029] Figure 5 yes Figure 2 A magnified view at point A;

[0030] Figure 6 Structural schematic diagram of the locking device in some embodiments of the present utility model. DETAILED DESCRIPTION

[0031] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] Figure 1 The endoscopic electrosurgical knife sheath fixing device 10 in some embodiments of the utility model is shown. Figures 2 to 4 As shown, the endoscopic electrosurgical knife sheath fixing device 10 is used to fix the relative positions of the electrosurgical knife sheath and the endoscope 20 to prevent the electrosurgical knife sheath from accidentally sliding during operation and improve the operational stability.

[0036] like Figure 1As shown, the endoscopic electrosurgical knife sheath fixing device 10 comprises a fixing device 1 and a locking device 2, wherein the fixing device 1 is used to fix the relative position of the locking device 2 and the endoscope 20, and the locking device 2 is used to fix the electrosurgical knife sheath.

[0037] It should be noted that the electric knife sheath is a prior art. During the operation of the electric knife, the electric knife can be extended and moved from the electric knife sheath under the operation of medical staff, and the corresponding operation can be performed after the electric knife is extended.

[0038] like Figures 1 to 5 As shown, the fixing device 1 includes a fixing seat 11, a strap 12 and a binding boss 13. The fixing seat 11 is provided with an avoidance hole 113. The strap 12 and the binding boss 13 are respectively arranged on the fixing seat 11. A plurality of binding holes 121 are opened on the strap 12. The fixing seat 11 is used to be correspondingly sleeved on the endoscope, so that the biopsy plug 40 is correspondingly exposed in the avoidance hole 113. The strap 12 is configured to be wrappable around the endoscope, and the binding boss 13 can be detachably inserted into any binding hole 121.

[0039] It can be understood that the fixing seat 11 is used to support the locking device 2. The binding belt 12 is used to wrap around the endoscope 20 and plug and match with the binding boss 13, so as to complete the fixation of the endoscope 20. Each binding hole 121 can be plugged and clamped by the binding boss 13, thereby preventing the binding belt 12 from loosening, so as to achieve the purpose of fixing the fixing seat 11.

[0040] It should be noted that, as shown in FIG*, the shape of the fixing seat 11 is preferably configured to match the contour of the predetermined fixed position; specifically, the endoscope 20 is generally provided with a clamp boss 30, and the biopsy plug 40 is provided on the clamp boss 30, and the shape of the fixing seat 11 is configured to match the contour of the clamp boss 30, so as to facilitate medical staff to quickly complete the positioning of the fixing seat 11 for subsequent further installation and fixation. After the electric knife is correspondingly inserted into the biopsy plug 40, the electric knife will be inserted into the clamp boss 30 and further slide out along the hose 50 of the endoscope 20, and then the electric knife can be operated to extend from the electric knife sheath to perform the corresponding operation.

[0041] like Figure 1 As shown, the locking device 2 includes a support plate 21, a locking clip 22 and a locking belt 23, please refer to Figures 4 to 6 The support plate 21 is arranged on the fixed seat 11, and a locking hole 211 is opened on the support plate 21. The locking clip 22 is arranged on the support plate 21. A clamping hole 221 for the electric knife to pass through is opened on the locking clip 22. The locking belt 23 passes through the locking hole 211 and is connected to the locking clip 22. The locking hole 211 and the locking belt 23 are tightly matched; when the locking belt 23 slides relative to the locking hole 211, the locking belt 23 drives the locking clip 22 to move or deform, so that the clamping hole 221 is tightened and clamps the electric knife sheath.

[0042] It can be understood that the support plate 21 is used to support the sliding of the locking belt 23 and to fix the locking clip 22. The locking clip 22 is used to clamp or release the electric knife sheath under the drive of the locking belt 23. The locking hole 211 is used to clamp the locking belt 23 to fix the relative position of the locking belt 23 on the support plate 21. The electric knife can pass through the clamping hole 221 and be correspondingly inserted into the biopsy plug 40.

[0043] It should be noted that the locking clip 22 can be configured as a structure in the related art that can clamp and fix the electric knife in a movable manner, such as a functional shape. Of course, the locking clip 22 can be configured to be made of a material with deformation and elasticity in the related art, so that on the one hand, it can be deformed under the drive of the locking belt 23 to clamp the electric knife, and on the other hand, it can also be elastically deformed when the locking belt 23 is reset and slid, so as to achieve the purpose of releasing the electric knife sheath.

[0044] In actual application, the fixing seat 11 is correspondingly mounted on the endoscope 20, so that the biopsy plug 40 is correspondingly exposed in the avoidance hole 113. Then, the binding belt 12 is operated to wrap around the endoscope 20, and the binding protrusion 13 is correspondingly inserted into the binding hole 121, so as to achieve the purpose of limiting the binding belt 12, that is, the binding belt 12 can be kept wound and fixed on the endoscope 20, thereby achieving the purpose of fixing the relative position of the endoscope 20 and the fixing seat 11.

[0045] Subsequently, the electric knife is passed through the clamping hole 221 and further inserted into the biopsy plug 40 to perform relevant surgical operations; then, if it is necessary to fix the electric knife sheath, the strap 12 is pulled to slide so that the locking clip 22 moves or deforms, so that the clamping hole 221 is tightened accordingly, so that the hole wall of the clamping hole 221 is correspondingly supported on the electric knife sheath, thereby achieving the purpose of fixing the electric knife sheath.

[0046] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10, a deformation gap 222 is further provided on the locking clamp 22, and the deformation gap 222 extends inward from the outer edge of the locking clamp 22 to connect to the clamping hole 221, so that the locking clamp 22 forms a deformation arm 223 on one side of the deformation gap 222, and the locking belt 23 is connected to the deformation arm 223; wherein, the deformation arm 223 is configured to be deformable under the drive of the locking belt 23, thereby tightening or releasing the clamping hole 221.

[0047] It can be understood that the deformation gap 222 is used to provide sufficient deformation space for the deformation arm 223. When the deformation arm 223 is deformed and the deformation gap 222 is gradually reduced, the inner diameter of the clamping hole 221 will also gradually decrease, so that the hole wall of the clamping hole 221 can abut against the electric knife sheath from multiple different directions, thereby fixing the electric knife sheath.

[0048] like Figure 1 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10 , the endoscopic electrosurgical knife sheath fixing device 10 includes a plurality of locking devices 2 , and each support plate 21 is disposed on a fixing seat 11 .

[0049] It can be understood that the provision of multiple locking devices 2 allows the electrosurgical knife sheath to be clamped and fixed at multiple different positions along the length direction, further improving the fixing stability of the electrosurgical knife sheath by the product.

[0050] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10, the endoscopic electrosurgical knife sheath fixing device 10 includes two locking devices 2, two support plates 21 are both arranged on the fixing seat 11, and the two support plates 21 are symmetrically arranged around the avoidance hole 113.

[0051] It can be understood that the two support plates 21 are symmetrically arranged on both sides of the avoidance hole 113, and thus the two locking clips 22 are also symmetrically arranged on both sides of the avoidance hole 113, so that the two locking clips 22 can fix the electric knife sheath from two opposite directions, thereby preventing the electric knife sheath from being deformed and damaged due to long-term unilateral force. At the same time, since the clamping forces are opposite, the clamping reliability of the electric knife sheath can be further improved.

[0052] like Figure 6 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10 , the thickness of the locking band 23 gradually increases in a direction away from the locking clip 22 .

[0053] It can be understood that, at any two positions D1 and D2 taken successively on the locking band 23 in a direction away from the locking clip 22 , the thickness T1 of the locking band 23 at D1 is greater than the thickness T2 of the locking band 23 at D2 .

[0054] In actual applications, under the condition that the size specifications of the locking hole 211 are constant, as the locking band 23 slides in the direction away from the locking clip 22, the locking hole 211 will be abutted and cooperated with different positions on the locking band 23. When the locking hole 211 is adapted to the thicker position on the locking band 23, the fit between the hole wall of the locking hole 211 and the locking band 23 will also be tighter, effectively preventing the locking band 23 from accidentally loosening, thereby stably maintaining the clamping state of the locking clip 22 on the electric knife sheath.

[0055] like Figure 1 and Figure 5 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10 , the width of the clamping hole 221 gradually decreases toward the direction approaching the biopsy plug 40 .

[0056] It can be understood that the width of the clamping hole 221 is gradually reduced, which will make the clamping hole 221 gradually narrow along the insertion direction of the electrosurgical knife, thereby guiding the electrosurgical knife to be inserted in the correct position to a certain extent, and making the narrower position in the clamping hole 221 preferentially clamped on the electrosurgical knife sheath. While improving the convenience of plug-in matching, it can also further improve the clamping stability.

[0057] like Figure 1 and Figure 5 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10 , a rounded corner 224 is provided on the hole wall of the clamping hole 221 .

[0058] It can be understood that the rounded corners 224 serve to guide the alignment of the electric knife, thereby improving the convenience of using the product.

[0059] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10, the fixing seat 11 includes a contoured tube wall 111 and a fixing plate 112, the contoured tube wall 111 is adapted to the outer wall of the endoscope, the strap 12 and the binding boss 13 are both arranged on the contoured tube wall 111, the avoidance hole 113 is located on the fixing plate 112, and the fixing plate 112 is connected to the contoured tube wall 111; the fixing plate 112 is configured to be able to abut against the endoscope 20 under the drive of the contoured tube wall 111.

[0060] It can be understood that the contoured tube wall 111 is cylindrical or substantially cylindrical as a whole, and can be adapted to the outer edge contour of the plug-in clamp boss 30; that is, after the contoured tube wall 111 is properly assembled, the contoured tube wall 111 can be correspondingly fitted to the outer edge contour of the plug-in clamp boss 30. At the same time, when the contoured tube wall 111 and the plug-in clamp boss 30 are aligned, the fixing plate 112 is also correspondingly supported on the surface of the plug-in clamp boss 30 where the biopsy plug 40 is provided, and the biopsy plug 40 is correspondingly exposed in the avoidance hole 113.

[0061] It should be noted that the fixing of the contoured tube wall 111 can be completed by wrapping the binding belt 12 and plugging the binding protrusion 13 into the binding hole 121 .

[0062] like Figure 1 and Figure 4 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10, the fixing device 1 includes two straps 12 and two binding bosses 13, and the two straps 12 and the two binding bosses 13 are all arranged on the fixing seat 11, and each strap 12 is provided with a plurality of binding holes 121, and each strap 12 is configured to be wrappable around the endoscope 20, so that the binding bosses 13 can be aligned and inserted into the binding holes 121.

[0063] It can be understood that in this type of embodiment, by providing two straps 12 , the fixing seat 11 can be fixed from two different positions, further improving the fixing stability of the fixing seat 11 .

[0064] like Figure 1 and Figure 4 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10 , an anti-loosening protrusion 131 is provided on the binding boss 13 , and an insertion chamfer 132 is also provided on the end of the binding boss 13 .

[0065] It can be understood that the radius of the binding protrusion 13 at the anti-loosening protrusion 131 is greater than the radius of other positions. In this way, the binding protrusion 13 can be effectively prevented from escaping from the binding hole 121, thereby improving the binding reliability.

[0066] like Figure 1 and Figure 4 As shown, in some embodiments of the endoscopic electrosurgical knife sheath fixing device 10, the strap 12 includes an elastic strap.

[0067] It can be understood that the elastic band is made of elastic material in the related art, and the elasticity of the elastic band will make the elastic band and the endoscope 20 fit more closely, thereby further improving the fixing reliability of the fixing seat 11.

[0068] The implementation of this utility model has the following beneficial effects:

[0069] The utility model relates to a device for fixing an endoscopic electrosurgical knife sheath. First, the utility model provides a fixing seat, a binding belt and a binding boss, so that the device can be stably mounted on the endoscope, and a firm fixing effect is achieved by wrapping the binding belt and inserting the binding boss. A locking device is further provided, and the electrosurgical knife sheath is clamped and fixed by the cooperation of a support plate, a locking clamp and a locking belt. During the sliding process, the locking belt can drive the locking clamp to move or deform, so that the clamping hole is tightened and the electrosurgical knife sheath is firmly clamped. In this way, the electrosurgical knife sheath can be conveniently clamped and fixed, and the clamping effect is reliable, which can effectively prevent the electrosurgical knife sheath from accidentally sliding during the operation, effectively avoid the problem of misoperation, and improve the stability and reliability of the surgical operation, thereby eliminating the tediousness of repeated adjustments by medical staff during the operation, and improving the efficiency of the operation.

[0070] Furthermore, by setting the straps and binding bosses, the fixing seat on the endoscope can be detached, so that the device can be flexibly adjusted as needed during use to meet the needs of different surgical scenarios. At the same time, this design also facilitates the cleaning and disinfection of the device, which is conducive to ensuring the hygiene and safety of the surgical environment.

[0071] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.

[0072] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An endoscopic electrosurgical knife sheath fixing device, characterized in that: include: A fixing device, the fixing device comprising a fixing seat, a binding strap and a binding boss, the fixing seat is provided with an avoidance hole, the binding strap and the binding boss are respectively arranged on the fixing seat, the binding strap is provided with a plurality of binding holes, the fixing seat is used to be correspondingly sleeved on the endoscope, so that the biopsy plug is correspondingly exposed in the avoidance hole, the binding strap is configured to be wrapped around the endoscope, and the binding boss is detachably inserted into any of the binding holes; and A locking device, the locking device comprising a support plate, a locking clip and a locking belt, the support plate is arranged on the fixing seat, a locking hole is provided on the support plate, the locking clip is arranged on the support plate, a clamping hole for the power supply knife to pass through is provided on the locking clip, the locking belt passes through the locking hole and is connected to the locking clip, and the locking hole is tightly matched with the locking belt; When the locking belt slides relative to the locking hole, the locking belt drives the locking clamp to move or deform, so that the clamping hole is tightened and clamps the electric knife sheath.

2. The endoscopic electrosurgical knife sheath fixing device according to claim 1, characterized in that: The locking clip is also provided with a deformation gap, which extends inward from the outer edge of the locking clip to communicate with the clamping hole, so that the locking clip forms a deformation arm on one side of the deformation gap, and the locking belt is connected to the deformation arm; Wherein, the deformable arm is configured to be deformable under the drive of the locking belt, thereby tightening or releasing the clamping hole.

3. The endoscopic electrosurgical knife sheath fixing device according to claim 1 or 2, characterized in that: The endoscopic electrosurgical knife sheath fixing device comprises a plurality of locking devices, and each of the support plates is arranged on the fixing seat.

4. The endoscopic electrosurgical knife sheath fixing device according to claim 3, characterized in that: The endoscopic electrosurgical knife sheath fixing device comprises two locking devices, and the two support plates are both arranged on the fixing seat, and the two support plates are symmetrically arranged around the avoidance hole.

5. The endoscopic electrosurgical knife sheath fixing device according to claim 1 or 2, characterized in that: The thickness of the locking band gradually increases in a direction away from the locking clip; or The width of the clamping hole gradually decreases toward the direction approaching the biopsy plug.

6. The endoscopic electrosurgical knife sheath fixing device according to claim 1 or 2, characterized in that: A rounded corner is provided on the hole wall of the clamping hole.

7. The endoscopic electrosurgical knife sheath fixing device according to claim 1, characterized in that: The fixing seat comprises a contoured tube wall and a fixing plate, the contoured tube wall is matched with the outer wall of the endoscope, the binding strap and the binding boss are both arranged on the contoured tube wall, the avoidance hole is located on the fixing plate, and the fixing plate is connected to the contoured tube wall; Wherein, the fixing plate is configured to be able to abut against the endoscope under the drive of the contoured cylinder wall.

8. The endoscopic electrosurgical knife sheath fixing device according to claim 1, characterized in that: The fixing device includes two straps and two binding bosses, and the two straps and the two binding bosses are all arranged on the fixing seat. Each strap is provided with a plurality of binding holes, and each strap is configured to be wrapped around the endoscope so that the binding bosses can be aligned and inserted into the binding holes.

9. The endoscopic electrosurgical knife sheath fixing device according to claim 1 or 8, characterized in that: An anti-loosening protrusion is arranged on the binding protrusion, and an insertion chamfer is also arranged on the end of the binding protrusion.

10. The endoscopic electrosurgical knife sheath fixing device according to claim 1, characterized in that: The straps include elastic straps.

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