Universal half-tube auxiliary positioning and traction device for unilateral double-channel endoscopic surgery

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to a universal half-tube auxiliary positioning and traction device for unilateral double-channel endoscopic surgery, which comprises a base, a height adjusting component, a snake-shaped arm component, a traction component and a traction component, the flexible surgical instrument can flexibly move, bend and extend in a three-dimensional space, the position and angle can be adjusted, the universal assembly comprises a ball-and-socket joint connected to the end of the snake-shaped arm assembly, a pipeline connecting rod is movably connected to the ball-and-socket joint, and the freedom degree of the surgical instrument is effectively reduced through the limiting effect of a semicircular pipeline; the positioning accuracy of an operation section and the definition of an operation visual field are improved, interference among operation instruments is reduced, the semicircular pipeline serves as an auxiliary supporting structure in the soft tissue cavity construction process, the cavity construction efficiency and safety are improved, meanwhile, the traction effect of a special assistant is replaced with application of the traction type semicircular pipeline, and the operation process is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery. Background Art

[0002] Unilateral dual-channel endoscopy (UBE) is an emerging minimally invasive spinal endoscopic technology. Its core is to perform surgical operations through two channels: one is an observation channel for endoscopic exposure of the surgical field and continuous irrigation; the other is an operation channel for the placement and operation of surgical instruments. This technology is widely used in endoscopic minimally invasive treatment of spinal stenosis, cervical spondylosis, thoracic lesions and lumbar degenerative lesions. However, the existing UBE technology has several significant limitations: 1. Excessive freedom of movement: Since there are no pipe restrictions on the two channels, the endoscope and operating instruments can easily tilt and move at will during the operation, making it difficult for the endoscope and operating instruments to meet accurately, and may even cause misoperation to non-target surgical segments.

[0003] 2. Poor irrigation: The pipe-free design of the operating channel may hinder water irrigation and affect the clarity of the surgical field when it is blocked or closed by soft tissue.

[0004] 3. Need for assistant traction: During intraspinal decompression and disc removal, a special assistant is needed to protect the nerve roots or dural sac, which increases the labor cost and complexity of the operation. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide a universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery. The limiting effect of the semicircular tube is effectively reduced to effectively reduce the degree of freedom of surgical instruments, improve the positioning accuracy of the surgical segment and the clarity of the surgical field of view, reduce the interference between surgical instruments, and the semicircular tube serves as an auxiliary supporting structure in the soft tissue cavity creation process, thereby improving the cavity creation efficiency and safety. At the same time, the application of the semicircular tube replaces the traction effect of a special assistant and simplifies the surgical procedure.

[0007] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: A universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery, comprising: As a base connected to the base, the bottom of the base is integrally formed with a limit plate, and a slide groove is opened in the base; A connecting assembly is connected to the base, comprising a screw rod rotatably connected to the slide slot, and a movable plate slidably connected to the slide slot, the tail end of the screw rod extends to the outside of the base, the tail end of the screw rod is connected to the rotating seat, and the movable plate is threadedly engaged with the screw rod; The height adjustment component is connected to the base to adjust the height of the device to suit different needs; The serpentine arm assembly is connected to the height adjustment assembly and follows the movement of the height adjustment assembly. It can flexibly move, bend and stretch in three-dimensional space to adjust the position and angle. A universal assembly is connected to the serpentine arm assembly, including a ball-and-socket joint connected to the end of the serpentine arm assembly, the ball-and-socket joint is movably connected to a pipe connecting rod, and the end of the pipe connecting rod is integrally formed and connected to a free arm; The semicircular pipe is connected to the free arm and moves synchronously with the free arm.

[0008] As a preferred solution of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, the height adjustment component includes a locking hole opened on the base, and a clamping plate connected to the top of the base corresponding to the position of the locking hole, and the clamping plate is connected to an adjustment bolt that is threadedly engaged with the base.

[0009] As a preferred solution of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, wherein: a support rod is connected to the locking hole, a U-shaped clamp is sleeved on the support rod, and a locking bolt for adjusting the locking state of the U-shaped clamp is connected to the U-shaped clamp.

[0010] As a preferred solution of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, the serpentine arm assembly includes a connecting seat connected to the outside of the U-shaped clamp, and a plurality of groups of serial joints are connected to the connecting seat, and the plurality of groups of serial joints are arranged equidistantly, and a locking device for locking the serial joints is connected to the outside of the connecting seat.

[0011] As a preferred solution of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, the other end of the pipeline connecting rod is integrally connected with a sphere, and cooperates with the ball and socket joint to form a universal movable structure.

[0012] As a preferred embodiment of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, the semicircular tube is composed of a body, a head and a tail, the body is a tubular structure with a semicircular cross-section, the head is rectangular, and the end is provided with a U-shaped groove connected to the free arm, and the tail is a smooth arc with a 2mm outward curl.

[0013] As a preferred solution of the universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery described in the present invention, the body width has three specifications of 10mm, 8mm and 6mm, the body length has four specifications of 100mm, 90mm, 80mm and 70mm, and the angle between the head and the body has four specifications of 135°, 120°, 100° and 90°.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The limiting effect of the semicircular channel effectively reduces the freedom of surgical instruments, improves the positioning accuracy of the surgical segment and the clarity of the surgical field, and reduces interference between surgical instruments; Providing a stable operating platform, the semicircular tube serves as an auxiliary support structure during soft tissue cavitation, improving the efficiency and safety of cavitation; The application of semicircular channels replaces the pulling effect of specialized assistants and simplifies the surgical procedure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of explosion structure; Figure 4 It is a side view structural schematic diagram of the present invention; Figure 5 It is a schematic diagram of the semicircular pipeline structure of the present invention.

[0016] In the figure: 100 base, 101 limit plate, 110 slide groove, 200 connecting assembly, 210 screw rod, 211 swivel seat, 220 movable plate, 300 height adjustment assembly, 310 locking hole, 311 clamping plate, 312 adjusting bolt, 320 support rod, 330 U-shaped clamp, 331 locking bolt, 400 serpentine arm assembly, 410 connecting seat, 411 series joint, 420 locker, 500 universal joint assembly, 510 ball and socket joint, 520 pipe connecting rod, 521 free arm, 600 semicircular pipe, 610 body, 620 head, 630 tail. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] The present invention provides a universal half-tube auxiliary positioning and traction device for unilateral dual-channel endoscopic surgery. The limiting effect of the semicircular tube is effectively reduced to reduce the degree of freedom of surgical instruments, improve the positioning accuracy of surgical segments and the clarity of surgical field of view, reduce the interference between surgical instruments, and the semicircular tube is used as an auxiliary support structure in the process of soft tissue cavitation, which improves the efficiency and safety of cavitation. At the same time, the application of the semicircular tube replaces the traction effect of a special assistant and simplifies the surgical process. Please refer to Figure 1-5 , including a base 100, a connecting component 200, a height adjustment component 300, a serpentine arm component 400, a universal component 500 and a semicircular pipe 600; Please continue reading Figure 1-4 , as a base 100 connected to the base, the bottom of the base 100 is integrally formed with a limit plate 101, and a slide groove 110 is opened in the base 100; Please continue reading Figure 1-4 The connecting assembly 200 is connected to the base 100, including a screw rod 210 rotatably connected to the slide slot 110, and a movable plate 220 slidably connected to the slide slot 110, the tail end of the screw rod 210 extends to the outside of the base 100, the tail end of the screw rod 210 is connected to the rotating seat 211, and the movable plate 220 is threadedly engaged with the screw rod 210; action: The rotating seat 211 drives the screw rod 210 to rotate in the slide groove 110, so that the movable plate 220 moves along the slide groove 110, and the device is clamped on the side of the operating table through the cooperation of the limiting plate 101 and the movable plate 220; Please continue reading Figure 1-3The height adjustment component 300 is connected to the base 100 to adjust the height of the device to meet different needs; The height adjustment assembly 300 includes a locking hole 310 formed on the base 100, and a pressing plate 311 connected to the top of the base 100 corresponding to the locking hole 310, and an adjusting bolt 312 threadedly engaged with the base 100 is connected to the pressing plate 311, and a support rod 320 is connected in the locking hole 310, and a U-shaped clip 330 is sleeved on the support rod 320, and a locking bolt 331 for adjusting the locking state of the U-shaped clip 330 is connected to the U-shaped clip 330; action: Adjust the height position of the support rod 320 from the locking hole 310. When it is adjusted to the required height, rotate the locking bolt 331 to clamp the support rod 320 through the clamping plate 311. In addition, the height position of the U-shaped clamp 330 can also be adjusted by cooperating with the locking bolt 331 to adjust the use height of the equipment to adapt to different needs. Please continue reading Figure 1 and Figure 4 The serpentine arm assembly 400 is connected to the height adjustment assembly 300, and follows the movement of the height adjustment assembly 300, and can flexibly move, bend and stretch in three-dimensional space, adjust the position and angle, and can conveniently adjust the position and angle of the semicircular channel 600 to achieve the precise position required for surgery; The serpentine arm assembly 400 includes a connection seat 410 threadedly connected to the outside of the U-shaped clamp 330, and a plurality of sets of serial joints 411 are connected to the connection seat 410. The plurality of serial joints 411 are arranged equidistantly, and a locker 420 for locking the serial joints 411 is connected to the outside of the connection seat 410; The multiple sets of serial joints 411 have a certain degree of freedom of movement, allowing movement in all directions, so that the entire serpentine arm can flexibly move, bend and stretch in three-dimensional space. Combined with the ball-and-socket joint, the position and angle of the semicircular channel can be easily adjusted to achieve the precise position required for surgery; Please continue reading Figure 1 and Figure 4 The universal assembly 500 is connected to the serpentine arm assembly 400, and includes a ball-and-socket joint 510 connected to the end of the serpentine arm assembly 400, and a pipe connecting rod 520 is movably connected to the ball-and-socket joint 510, and a free arm 521 is integrally connected to the end of the pipe connecting rod 520, and a sphere is integrally connected to the other end of the pipe connecting rod 520, and cooperates with the ball-and-socket joint 510 to form a universal movable structure. This design enables the semicircular pipe 600 to be firmly installed on the free arm 521, and with the help of the universal movable joint of the free arm 521, it can be adjusted in multiple angles and directions; Please continue reading Figure 1 and Figure 5, the semicircular pipe 600 is connected to the free arm 521 and moves synchronously with the free arm 521; The semicircular tube 600 is composed of a body 610, a head 620 and a tail 630. The body 610 is a tubular structure with a semicircular cross-section. The body is the main supporting structure of the semicircular tube. Its semicircular cross-section provides good mechanical properties and fluid transmission characteristics. The head 620 is rectangular and has a U-shaped groove connected to the free arm 521 at the end. This design enables the semicircular tube to be firmly connected to the free arm connecting rod. The tail 630 is a smooth arc with a 2mm outward curvature, which is used to pull and protect nerve roots or dura mater sacs during surgery to facilitate exposure and removal of intervertebral disc tissue. The body 610 has three width specifications of 10mm, 8mm and 6mm, and the body 610 has four length specifications of 100mm, 90mm, 80mm and 70mm. The angle between the head 620 and the body 610 has four specifications of 135°, 120°, 100° and 90°, so that it can show good performance in different paravertebral soft tissue depths and spinal curvatures. Example

[0022] Semicircular pipe: 1) Head (including U-shaped groove): rectangular (length * width * thickness = 25mm * 15mm * 2mm), with a U-shaped groove (length * width = 10mm * 5mm), this design enables the semicircular pipe to be firmly connected to the free arm connecting rod; 2) Body (a tubular structure with a semicircular cross section): The body is the main supporting structure of the semicircular tube, and its semicircular cross section provides good mechanical properties and fluid transmission characteristics. The body width has three specifications: 10mm, 8mm and 6mm, the body length has four specifications: 100mm, 90mm, 80mm, and 70mm, and the angle between the head and the body has four specifications: 135°, 120°, 100° and 90°, so that it can show good performance in different paravertebral soft tissue depths and spinal curvatures; 3) Tail: It is in a smooth arc shape with a 2mm outward curvature, used to pull and protect the nerve roots or dura mater sac during surgery to facilitate the exposure and removal of intervertebral disc tissue; During the operation, the soft tissue is first expanded through the step-by-step expansion catheter to form a primary instrument operation channel, and then a positioning semicircular tube of appropriate size is inserted along the outermost expansion catheter, and connected, locked and fixed with the serpentine free arm. Under the guidance of the positioning semicircular tube, the endoscope and the operating instrument can be smoothly combined. At this time, the positioning semicircular tube not only limits the freedom of surgical instruments and improves the accuracy of surgical segment positioning, but also serves as an auxiliary support structure in the soft tissue cavity creation process, providing a stable operating platform for surgical instruments such as plasma radiofrequency knives, making the soft tissue cavity creation process smoother and more efficient.

[0023] During intraspinal decompression and disc removal, a semicircular tube of appropriate size is selected to protect the nerve root or dural sac, and is connected, locked and fixed with the serpentine free arm. In this way, the semicircular tube not only plays a role of traction and protection, but also maintains the patency of water flow irrigation and improves the clarity of the surgical field.

[0024] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery, characterized in that: include: A base (100) connected to the pedestal, the bottom of the base (100) being integrally formed with a limit plate (101), and a slide groove (110) being provided in the base (100); A connecting assembly (200) is connected to the base (100), comprising a screw rod (210) rotatably connected to the slide groove (110), and a movable plate (220) slidably connected to the slide groove (110), wherein the rear end of the screw rod (210) extends to the outside of the base (100), the rear end of the screw rod (210) is connected to a rotating seat (211), and the movable plate (220) is threadedly engaged with the screw rod (210); A height adjustment component (300) connected to the base (100) for adjusting the height of the device to suit different usage requirements; The serpentine arm assembly (400) is connected to the height adjustment assembly (300), follows the movement of the height adjustment assembly (300), and is capable of flexibly moving, bending and stretching in three-dimensional space, and adjusting position and angle; The universal assembly (500) is connected to the serpentine arm assembly (400), comprising a ball-and-socket joint (510) connected to the end of the serpentine arm assembly (400), the ball-and-socket joint (510) being movably connected to a pipe connecting rod (520), and the end of the pipe connecting rod (520) being integrally formed and connected to a free arm (521); The semicircular pipe (600) is connected to the free arm (521) and moves synchronously with the free arm (521).

2. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 1, characterized in that: The height adjustment assembly (300) comprises a locking hole (310) formed on the base (100), and a clamping plate (311) connected to the top of the base (100) at a position corresponding to the locking hole (310), and an adjustment bolt (312) threadedly engaged with the base (100) is connected to the clamping plate (311).

3. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 2, characterized in that: The locking hole (310) is connected to a support rod (320), a U-shaped clip (330) is sleeved on the support rod (320), and a locking bolt (331) for adjusting the locking state of the U-shaped clip (330) is connected to the U-shaped clip (330).

4. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 3, characterized in that: The serpentine arm assembly (400) comprises a connection seat (410) connected to the outside of the U-shaped clamp (330), a plurality of sets of serial joints (411) are connected to the connection seat (410), the plurality of sets of serial joints (411) are arranged equidistantly, and a locker (420) for locking the serial joints (411) is connected to the outside of the connection seat (410).

5. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 4, characterized in that: The other end of the pipeline connecting rod (520) is integrally formed with a spherical body, and cooperates with the ball-and-socket joint (510) to form a universal movable structure.

6. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 5, characterized in that: The semicircular pipe (600) is composed of a body (610), a head (620) and a tail (630); the body (610) is a tubular structure with a semicircular cross-section; the head (620) is rectangular and has a U-shaped groove connected to the free arm (521) at the end; and the tail (630) is in a smooth arc shape with a 2 mm outward curvature.

7. The universal half-tube auxiliary positioning and pulling device for unilateral dual-channel endoscopic surgery according to claim 6, characterized in that: The width of the body (610) has three specifications: 10 mm, 8 mm and 6 mm; the length of the body (610) has four specifications: 100 mm, 90 mm, 80 mm and 70 mm; and the angle between the head (620) and the body (610) has four specifications: 135°, 120°, 100° and 90°.

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