Neuroendoscope supporting and fixing device in cranial microvascular decompression operation

Abstract

The invention discloses a neuroendoscopy supporting and fixing device in cranial microvascular decompression, which relates to the technical field of medical instruments and comprises an air cylinder, a pneumatic arm fixedly connected to the top of the air cylinder and a clamping mechanism connected with the pneumatic arm. The clamping mechanism comprises a supporting frame fixedly connected to the top of the pneumatic arm, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are movably arranged on the top of the supporting frame and used for fixing the neuroendoscope. The fixing mechanism comprises a suction cup movably arranged at the bottom of the air cylinder and an air pump, and an air inlet of the air pump is communicated with the interior of the suction cup through an air inlet pipe. According to the neuroendoscope supporting and fixing device in the cranial microvascular decompression operation, the suction cup is attached to the table top, then the air pump is started, air in the suction cup is pumped out, then negative pressure is formed in the suction cup, the device is fixed, and the situation that the base shakes in the moving process of the pneumatic arm is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a neuroendoscopic support and fixation device during cranial microvascular decompression surgery. Background Art

[0002] Cranial microvascular decompression is a minimally invasive surgery, mainly used to treat diseases caused by compression of intracranial nerves and blood vessels, such as trigeminal neuralgia, hemifacial spasm, etc. The purpose of the surgery is to relieve symptoms by placing a gasket between the nerves and blood vessels to reduce or eliminate compression. The surgical approach is consistent with that under a conventional microscope, with a small incision in the hairline behind the ear. Both the neuroendoscope and operating instruments need to enter the pontocerebellar triangle through this incision and bone window. The existing operation process generally fixes the neuroendoscope to the surgical area with a special fixing device, and then adjusts it as needed.

[0003] Publication (announcement) No.: CN219048816U discloses a serpentine pneumatic arm, comprising a cylinder, a rotary shaft steel rope connected to an output end of the cylinder, an eccentric rotary shaft connected to the other end of the rotary shaft steel rope, a swing arm ear connected to the eccentric position of the eccentric rotary shaft, a steel rope connected to the swing arm ear through a locking joint, a universal base shaft connected to the steel rope and the outer ring of the locking joint, and a plurality of universal blocks connected in series to the steel rope; an arc groove is provided at the bottom end of the universal block, a round head is provided at the top end, the universal blocks are connected in series to the steel rope in a manner that the arc groove is superimposed on the round head, a connector is provided at the end of the steel rope to prevent the universal block from falling out of the end, and the steel rope and the universal block together form a serpentine whip; a fixed sleeve for placing the rotary shaft steel rope, the eccentric rotary shaft, the swing arm ear, the locking joint and the universal base shaft is connected to one side of the output end of the cylinder.

[0004] Although the above scheme enables the surgeon to actively adjust the serpentine pneumatic arm according to his or her own needs to obtain a comfortable surgical field of view, when the pneumatic arm drives the neuroendoscope to a farther position, the center of gravity of the pneumatic arm will move significantly, causing the base of the pneumatic arm to shake significantly, and in severe cases, the pneumatic arm may even tip over. Summary of the invention

[0005] The main purpose of the present invention is to provide a device for supporting and fixing a neuroendoscope during cranial microvascular decompression surgery. By setting up a fixing mechanism, the problem that when the neuroendoscope is moved to a farther position, the center of gravity of the pneumatic arm will move significantly, causing the base of the pneumatic arm to shake significantly, and in severe cases, the pneumatic arm may even fall over, is solved.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A neuroendoscopic support and fixation device for cranial microvascular decompression, comprising:

[0008] A cylinder, a pneumatic arm fixedly connected to the top of the cylinder, and a clamping mechanism connected to the pneumatic arm;

[0009] The clamping mechanism comprises a support frame fixedly connected to the top of the pneumatic arm, and a first clamping member and a second clamping member movably arranged on the top of the support frame for fixing the neuroendoscope;

[0010] The fixing mechanism comprises a suction cup and an air pump movably arranged at the bottom of the cylinder, and the air inlet of the air pump is connected with the inside of the suction cup through an air inlet pipe.

[0011] Preferably, the clamping mechanism also includes a servo motor fixedly connected to the outer side wall of the support frame, a forward and reverse ball screw fixedly connected to the output end of the servo motor, and a limit rod fixedly connected to the opposite inner side wall of the support frame.

[0012] Preferably, the first clamping member comprises a movable seat movably arranged on the outer surface of the forward and reverse ball screw, and a clamp fixedly connected to the top of the movable seat, and the shape of the clamp is an arc block.

[0013] Preferably, the second clamping member has the same structural composition as the first clamping member, and the two are symmetrically arranged with respect to the mid-vertical plane of the forward and reverse ball screw.

[0014] Preferably, the fixing mechanism further comprises a protective cavity fixedly connected to the bottom of the cylinder, a driving motor suspended inside the protective cavity, a gear fixedly connected to the outer wall of the output end of the driving motor, a first telescopic rod fixedly connected to the top wall of the protective cavity, a first tooth plate fixedly connected to the bottom end of the first telescopic rod, and a bearing frame fixedly connected to the bottom end of the first tooth plate;

[0015] The suction cup and the air pump are both fixedly connected to the bottom of the supporting frame.

[0016] Preferably, the fixing mechanism further comprises an exhaust pipe fixedly connected to the outer side wall of the intake pipe, and an electrically controlled valve fixedly installed on the inner side wall of the exhaust pipe.

[0017] Preferably, the moving mechanism includes a second telescopic rod fixedly connected to the top wall of the protective cavity, a second tooth plate fixedly connected to the end face of the second telescopic rod, a mounting frame fixedly connected to the bottom end of the second tooth plate, and a moving wheel installed at the bottom of the mounting frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the driving motor is started to drive the gear to rotate, thereby driving the second tooth plate to move up and the first tooth plate to move down, until the moving wheel is away from the desktop and the suction cup is in contact with the desktop, and then the air pump is started to extract the air inside the suction cup, thereby making the inside of the suction cup negative pressure, so as to fix the device and prevent the base from shaking during the movement of the pneumatic arm.

[0020] 2. In the present invention, the neuroendoscope is placed between two clamps and the servo motor is started to drive the forward and reverse ball screw to rotate, thereby driving the two movable seats and the clamps to move towards each other until the two clamps fix the neuroendoscope. After that, the surgeon can adjust the pneumatic arm according to needs to facilitate the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure in the middle;

[0023] Figure 3 This is a schematic diagram of the internal structure of the protection cavity of the present invention;

[0024] Figure 4 For the present invention Figure 3 Middle B is an enlarged schematic diagram of the structure;

[0025] Figure 5 It is a schematic diagram of the distribution structure of the first tooth plate and the second tooth plate of the present invention.

[0026] In the figure: 1. cylinder; 2. pneumatic arm; 301. support frame; 302. servo motor; 303. forward and reverse ball screw; 304. movable seat; 305. clamp; 306. limit rod; 4. protective chamber; 501. drive motor; 502. gear; 503. first telescopic rod; 504. first tooth plate; 505. support frame; 506. air pump; 507. suction cup; 508. venting pipe; 509. electric control valve; 601. second telescopic rod; 602. second tooth plate; 603. mounting frame; 604. moving wheel. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] Embodiment 1: Figure 1-5 As shown, a neuroendoscopic support and fixation device for cranial microvascular decompression surgery comprises:

[0029] A cylinder 1, a pneumatic arm 2 fixedly connected to the top of the cylinder 1, and a clamping mechanism connected to the pneumatic arm 2;

[0030] The clamping mechanism includes a support frame 301 fixedly connected to the top of the pneumatic arm 2, and a first clamping member and a second clamping member movably arranged on the top of the support frame 301 for fixing the neuroendoscope;

[0031] The fixing mechanism includes a suction cup 507 and an air pump 506 movably arranged at the bottom of the cylinder 1, and an air inlet of the air pump 506 is connected to the inside of the suction cup 507 through an air inlet pipe.

[0032] The fixing mechanism also includes a protective chamber 4 fixedly connected to the bottom of the cylinder 1, a driving motor 501 suspended inside the protective chamber 4, a gear 502 fixedly connected to the outer wall of the output end of the driving motor 501, a first telescopic rod 503 fixedly connected to the top wall of the protective chamber 4, a first tooth plate 504 fixedly connected to the bottom end of the first telescopic rod 503, and a carrier frame 505 fixedly connected to the bottom end of the first tooth plate 504;

[0033] The suction cup 507 and the air pump 506 are both fixedly connected to the bottom of the support frame 505 , wherein the gear 502 is meshed with the first tooth plate 504 , and the support frame 505 can be sleeved on the outer side wall of the gear 502 .

[0034] The fixing mechanism also includes an air vent pipe 508 fixedly connected to the outer wall of the air inlet pipe, and an electrically controlled valve 509 fixedly installed on the inner wall of the air vent pipe 508. By opening the electrically controlled valve 509, external air enters the interior of the suction cup 507 through the air vent pipe 508.

[0035] The moving mechanism includes a second telescopic rod 601 fixedly connected to the top wall of the protective cavity 4, a second toothed plate 602 fixedly connected to the end face of the second telescopic rod 601, a mounting frame 603 fixedly connected to the bottom end of the second toothed plate 602, and a moving wheel 604 installed at the bottom of the mounting frame 603, wherein the second toothed plate 602 is also meshed with the gear 502, and the inner diameter of the mounting frame 603 is larger than the outer diameter of the supporting frame 505.

[0036] The cylinder 1 is moved to a designated position by the moving wheel 604. When the movement is completed, the driving motor 501 is started to drive the gear 502 to rotate, thereby driving the second tooth plate 602 to move up and the first tooth plate 504 to move down, until the moving wheel 604 is away from the desktop and the suction cup 507 is in contact with the desktop, and then the air pump 506 is started to extract the air inside the suction cup 507, thereby making the suction cup 507 have a negative pressure, so as to fix the device and prevent the base from shaking during the movement of the pneumatic arm 2;

[0037] When the device needs to be moved, the electric control valve 509 is opened to make the air pressure inside and outside the suction cup 507 equal. Then, by reversing the drive motor 501, the second tooth plate 602 can be moved down and the first tooth plate 504 can be moved up, so that the moving wheel 604 can be abutted against the desktop, thereby facilitating the movement of the device.

[0038] Embodiment 2: Figure 1-5 As shown, a neuroendoscopic support and fixation device for cranial microvascular decompression surgery comprises:

[0039] A cylinder 1, a pneumatic arm 2 fixedly connected to the top of the cylinder 1, and a clamping mechanism connected to the pneumatic arm 2;

[0040] The clamping mechanism includes a support frame 301 fixedly connected to the top of the pneumatic arm 2, and a first clamping member and a second clamping member movably arranged on the top of the support frame 301 for fixing the neuroendoscope;

[0041] The fixing mechanism includes a suction cup 507 and an air pump 506 movably arranged at the bottom of the cylinder 1, and an air inlet of the air pump 506 is connected to the inside of the suction cup 507 through an air inlet pipe.

[0042] The clamping mechanism also includes a servo motor 302 fixedly connected to the outer wall of the support frame 301, a forward and reverse ball screw 303 fixedly connected to the output end of the servo motor 302, and a limit rod 306 fixedly connected to the relatively inner wall of the support frame 301, and the forward and reverse ball screw 303 is driven to rotate by the servo motor 302.

[0043] The first clamping member includes a movable seat 304 movably arranged on the outer surface of the forward and reverse ball screw 303, and a clamp 305 fixedly connected to the top of the movable seat 304. The clamp 305 is shaped like an arc block, wherein the movable seat 304 slides on the outer surface of the limiting rod 306. The arc block clamp 305 is set to increase the contact area between the clamp 305 and the neuroendoscope, thereby achieving a clamping effect on the neuroendoscope.

[0044] The second clamping member has the same structure as the first clamping member, and the two are symmetrically arranged about the mid-vertical plane of the forward and reverse ball screw 303. The forward and reverse ball screw 303 rotates to drive the two movable seats 304 and the clamp 305 to move toward or away from each other.

[0045] When the device is fixed, the neuroendoscope is placed between the two clamps 305, and the servo motor 302 is started to drive the forward and reverse ball screw 303 to rotate, thereby driving the two movable seats 304 and the clamps 305 to move towards each other until the two clamps 305 fix the neuroendoscope. After that, the surgeon can adjust the pneumatic arm 2 according to needs.

Claims

1. A neuroendoscopic support and fixation device for cranial microvascular decompression, characterized in that: include: A cylinder (1), a pneumatic arm (2) fixedly connected to the top of the cylinder (1), and a clamping mechanism connected to the pneumatic arm (2); The clamping mechanism comprises a support frame (301) fixedly connected to the top of the pneumatic arm (2), and a first clamping member and a second clamping member movably arranged on the top of the support frame (301) for fixing the neuroendoscope; The fixing mechanism comprises a suction cup (507) and an air pump (506) movably arranged at the bottom of the cylinder (1); an air inlet of the air pump (506) is connected to the inside of the suction cup (507) through an air inlet pipe.

2. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 1, characterized in that: The clamping mechanism further comprises a servo motor (302) fixedly connected to the outer side wall of the support frame (301), a forward and reverse ball screw (303) fixedly connected to the output end of the servo motor (302), and a limit rod (306) fixedly connected to the inner side wall opposite to the support frame (301).

3. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 2, characterized in that: The first clamping member comprises a movable seat (304) movably arranged on the outer surface of the forward and reverse ball screw (303), and a clamp (305) fixedly connected to the top of the movable seat (304), wherein the clamp (305) is in the shape of an arc block.

4. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 3, characterized in that: The second clamping member has the same structural composition as the first clamping member, and the two are symmetrically arranged with respect to the mid-vertical plane of the forward and reverse ball screw (303).

5. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 4, characterized in that: The fixing mechanism further comprises a protective chamber (4) fixedly connected to the bottom of the cylinder (1), a driving motor (501) suspended inside the protective chamber (4), a gear (502) fixedly connected to the outer wall of the output end of the driving motor (501), a first telescopic rod (503) fixedly connected to the top wall of the protective chamber (4), a first tooth plate (504) fixedly connected to the bottom end of the first telescopic rod (503), and a bearing frame (505) fixedly connected to the bottom end of the first tooth plate (504); The suction cup (507) and the air pump (506) are both fixedly connected to the bottom of the supporting frame (505).

6. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 5, characterized in that: The fixing mechanism also includes an exhaust pipe (508) fixedly connected to the outer wall of the intake pipe, and an electric control valve (509) fixedly installed on the inner wall of the exhaust pipe (508).

7. The neuroendoscopic support and fixation device for cranial microvascular decompression according to claim 6, characterized in that: A moving mechanism, the moving mechanism comprising a second telescopic rod (601) fixedly connected to the top wall of the protective cavity (4), a second tooth plate (602) fixedly connected to the end surface of the second telescopic rod (601), a mounting frame (603) fixedly connected to the bottom end of the second tooth plate (602), and a moving wheel (604) mounted on the bottom of the mounting frame (603).

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