A neuroendoscopic soft channel with an adjustable skull fixation arm capable of retracting the scalp

Abstract

The invention discloses a neuroendoscopic soft channel with an adjustable skull fixation arm capable of retracting the scalp, and belongs to the technical field of surgical instruments for neurosurgery neuroendoscopic platforms. It comprises a puncture channel and a fixed arm structure, wherein the fixed arm structure comprises a retractor fixator and a fixing belt, and the puncture channel is connected to the retractor fixator through the fixing belt; since the channel has a fixed arm structure, it has a simple structure, reasonable design, simple operation, and strong practicality. The fixed arm structure is used for neurosurgery, and provides an adjustable and fixed skull fixation platform capable of retracting the scalp during surgery. The neuroendoscopic channel is connected to fix the neuroendoscopic channel at the most ideal position of intracranial hematoma, tumor and other lesions, and the channel puncture position is flexibly adjusted, the adjustment is convenient, the stability is good, and the fixation is reliable. During the operation, the surgical site can be accurately exposed, the operation is minimally invasive, the operation time is short, brain tissue damage is effectively reduced, and the patient's postoperative recovery is beneficial.

Description

Technical Field

[0001] The present invention relates to a neuroendoscopic soft channel with a scalp-retracting and adjustable skull-fixing arm, belonging to the technical field of surgical instruments for neurosurgery neuroendoscopic platforms. Background Art

[0002] my country has now entered an aging society. The number of hemorrhagic stroke patients reaches about 5 million per year, mainly hypertensive cerebral hemorrhage and intraventricular hemorrhage. About 20-30% of patients need surgery to remove hematomas. The traditional surgical method is to open the skull and open the large bone flap to remove hematomas, and place catheters in the hematoma cavity and ventricles for drainage. The disadvantages are as follows: opening the skull and opening the large bone flap to remove hematomas artificially aggravates brain damage and has many complications; blind puncture and catheterization before surgery may cause the puncture position to deviate and damage the surrounding brain tissue, aggravating brain dysfunction, and simple catheterization and drainage may lead to insufficient drainage of hematomas, failing to achieve the purpose of shortening the course of the disease. In addition, during traditional surgery for deep brain tumors, intraventricular tumors, and functional diseases, large-scale brain tissue exposure and operation corridors may cause artificial damage, aggravating neurological dysfunction.

[0003] At present, the use of disposable dilators (disposable retractors) is widely promoted in the removal of hypertensive cerebral hemorrhage, removal of ventricular hematoma, and removal of intraventricular tumors at home and abroad. Its characteristics can be used for deep ventricle surgery, the surgical site can be accurately exposed, and the operation channel is protected by the dilator to avoid secondary damage to the brain tissue. Compared with traditional surgical methods, the use of disposable dilators for surgery is more minimally invasive, while reducing the exposure range of skin flaps and bone flaps, shortening the operation time, reducing the chance of postoperative infection, and the patient's recovery is fast, which improves the accuracy and safety of the operation.

[0004] With the continuous research and development of neuroendoscopic minimally invasive platforms in my country in recent years, the requirements for the safety, reliability and controllability of neuroendoscopic channels will continue to increase. However, the immaturity of endoscopic channels has always restricted the application and dissemination of this treatment method. The patent with publication number CN107007333A discloses a visual adjustable neuroendoscopic channel, but the device cannot fix the operation channel, and the endoscope, aspirator and other operating instruments need to be placed in the channel at the same time during the operation; if the channel is not effectively fixed, when multiple instruments are operated in the channel, it will not only affect the stability of the endoscopic image, but more importantly, the stability of the channel is poor when multiple instruments are operated in the channel, and the channel will be rigidly displaced when multiple instruments are operated, further damaging the brain tissue; if the best position of the channel during the operation is not fixed, it will be displaced due to the operation of the instrument or with the displacement of the brain tissue, and repeated adjustment of the channel position will also increase brain tissue damage; the channel during endoscopic operation is made of hard material, and it is impossible to adjust the various fields of view and operating angles more freely. If the brain tissue is forcibly pressed to the best field of view and operating angle, it will be rigidly displaced and damage the brain tissue. Summary of the invention

[0005] In view of the above problems, the technical problem to be solved by the present invention is to provide a scalp retractable

[0006] Neuroendoscopic soft channel with adjustable skull fixation arm.

[0007] The neuroendoscopic soft channel with a scalp-retractable and adjustable skull fixation arm of the present invention comprises a puncture channel and a fixation arm structure, wherein the fixation arm structure comprises a retractor fixator and a fixation belt, and the puncture channel is connected to the retractor fixator through the fixation belt;

[0008] The retractor fixator comprises a hollow rectangular body, a joint arm, an upper cylinder, a horizontal cylinder, a nut, a tail, a retractor fixator base, a screw hole, a screw and a fixing steel rope. The hollow opening of the hollow rectangular body passes through the fixing belt body. The joint arm is composed of several hollow "bowl"-shaped joint openings connected at the bottom. The upper cylinder is connected to the bottom of the joint arm. The upper cylinder and the horizontal cylinder are both hollow structures. The fixing steel rope passes through the joint arm, the upper cylinder, and the interior of the horizontal cylinder to connect with the hollow rectangular body and the nut. The nut is provided with a thread inside and is threadedly connected with the horizontal cylinder. The joints of the joint arm can be tightened and fixed by turning the nut outward. The nut is provided with a tail. The bottom of the upper cylinder is fixed to the retractor fixator base as a whole.

[0009] The fixing belt comprises a ramp, a fixing belt body, an adjustment switch, an adjustment spring, a rectangular opening and a fixing belt base. One end of the fixing belt body is a plurality of ramps, and the other end is a fixing belt base. The lower end of the fixing belt base is connected to the fixing belt body. The lower end of the fixing belt base is provided with a rectangular opening, and the size of the rectangular opening is consistent with the size of the fixing belt body. One side of the fixing belt of the fixing belt base (306) is connected to the adjustment switch (303). The adjustment switch is connected to the fixing belt base via an adjustment spring, and the lower half of the adjustment switch is an inclined surface. The fixing belt body is made of a soft material.

[0010] Preferably, the puncture hard tube core is made of a hard transparent material, and the soft channel is made of a transparent soft material, and the soft channel and the puncture hard tube core can be provided with a plurality of models of different thicknesses to meet the needs of different channel sizes during surgery.

[0011] Preferably, the two ends of the retracting and fixing base are in an arc shape with a narrow upper part and a wide lower part, and a screw hole is respectively provided at the base at both ends, and screws are provided in the screw holes.

[0012] The beneficial effects of the present invention are as follows: it has a simple structure, a reasonable design, is easy to operate, and is highly practical. This fixed arm structure is used for neurosurgery, and provides an adjustably fixed skull fixation platform that can retract the scalp during surgery. It is connected to a neuroendoscopic channel, and fixes the neuroendoscopic channel at the most ideal position for intracranial hematomas, tumors, and other lesions. The channel puncture position can be flexibly adjusted, and the adjustment is convenient, the stability is good, and the fixation is reliable. During the operation, the surgical site can be accurately exposed, the operation is minimally invasive, the operation time is short, brain tissue damage is effectively reduced, and the patient's postoperative recovery is beneficial. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the puncture hard tube structure in the present invention;

[0016] Figure 3 Schematic diagram of the soft channel structure in the present invention;

[0017] Figure 4 This is a schematic diagram of the overall structure of the puncture channel in the present invention;

[0018] Figure 5 It is a schematic diagram of the exploded structure of the retractor fixator in the present invention;

[0019] Figure 6 It is a schematic diagram of the overall structure of the fixing belt in the present invention;

[0020] Figure 7 It is a schematic diagram of the working state structure of the fixing belt in the present invention;

[0021] Figure 8 It is a schematic diagram of the adjusting spring structure in the present invention.

[0022] Figure numerals: puncture channel 1, retractor fixator 2, fixing belt 3, return ring 101, puncture hard tube core 102, hard tube core head 103, soft channel tail end thread 104, soft channel 105, soft channel head end opening 106, scale 107, hollow rectangular body 201, articulated arm 202, upper cylinder 203, horizontal cylinder 204, nut 205, tail wing 206, retractor fixator base 207, screw hole 208, screw 209, fixing steel rope 210, ramp ladder 301, fixing belt body 302, adjustment switch 303, adjustment spring 304, rectangular opening 305, fixing belt base 306. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 8As shown, this specific embodiment adopts the following technical solution: it comprises a puncture channel and a fixed arm structure, the fixed arm structure comprises a retractor and a fixing belt, and the puncture channel is connected to the retractor through the fixing belt;

[0024] The retractor fixator 2 comprises a hollow rectangular body 201, a joint arm 202, an upper cylinder 203, a horizontal cylinder 204, a nut 205, a tail wing 206, a retractor fixator base 207, a screw hole 208, a screw 209 and a fixing steel rope 210. The hollow opening of the hollow rectangular body 201 passes through the fixing belt body 302. The joint arm 202 is composed of several hollow "bowl"-shaped joint openings connected at the bottom. The upper cylinder 203 is connected to the bottom of the articulated arm 202. Both the upper cylinder 203 and the horizontal cylinder 204 are hollow structures. The fixed steel rope 210 passes through the articulated arm 202, the upper cylinder 203, and the horizontal cylinder 204 to be connected to the hollow rectangular body 201 and the nut 205. The nut 205 is provided with a thread inside and is threadedly connected to the horizontal cylinder 204. The joints of the articulated arm can be tightened and fixed by rotating the nut 205 outward. The nut 205 is provided with a tail wing 206. The bottom of the upper cylinder 203 is fixed to the distraction fixer base 207 as a whole. The two ends of the distraction fixation base 207 are in an arc shape with a narrow upper part and a wide lower part. A screw hole 208 is provided at each of the two end bases, and a screw 209 is provided in the screw hole 208. The screw 209 fixes the distraction fixation base 207 to the skull through the screw hole 208.

[0025] The fixing belt 3 comprises a ramp 301, a fixing belt body 302, an adjustment switch 303, an adjustment spring 304, a rectangular opening 305 and a fixing belt base 306. The fixing belt body 302 is made of soft material. One end of the fixing belt body 302 is a plurality of ramps 301, and the other end is a fixing belt base 306. The lower end of the fixing belt base 306 is connected to the fixing belt body 302. The lower end of the fixing belt base 306 is provided with a rectangular opening 305, and the size of the rectangular opening 305 is consistent with the size of the fixing belt body 302. One side of the fixing belt base (306) is connected to the adjustment switch (303). The adjustment switch 303 is connected to the fixing belt base 306 through the adjustment spring 304, and the lower half of the adjustment switch 303 is an inclined surface, and the upper end of the adjustment switch 304 can be pressed to move the lower end outward.

[0026] The puncture channel 1 comprises a return ring 101, a puncture hard tube core 102, a hard tube core head 103, a soft channel tail end thread 104, a soft channel 105, a soft channel head end opening 106 and a scale 107. The head end of the puncture hard tube core 102 is circular, and a return ring 101 is provided at the tail end, and a thread is provided in the return ring 101. The tail end of the soft channel 105 is provided with a soft channel tail end thread 104. The puncture hard tube core 102 and the soft channel 105 are fixed as a whole through the return ring 101 and the soft channel tail end thread 104. The front end of the soft channel 105 is provided with a soft channel head end opening 106, and the width of the soft channel head end opening 106 is The width is consistent with the junction of the circular head and body of the puncture hard tube core 102, and the width of the soft channel head end opening 106 is closely matched with the head end of the puncture hard tube core 102. Scales 107 are provided on the puncture hard tube core 102 and the soft channel 105. The puncture hard tube core 102 is made of a hard transparent material, and the soft channel 105 is made of a transparent soft material. The soft channel 105 and the puncture hard tube core 102 can be equipped with multiple models of different thicknesses to meet the needs of different channel sizes during surgery.

[0027] Working principle: When in use, the retractor base 207 is fixed to the skull with screws 209 through screw holes 208 around the bone window; the nut 205 is moved inward to the bottom to loosen the joint arm 202; the fixing belt body 302 passes through the hollow opening of the hollow rectangular body 201, the ramp 301 passes through the rectangular opening 305, and an elastic ring is formed by adjusting the tip of the switch 303. The puncture channel passes through the elastic ring. Before puncture, the puncture hard tube core 102 is first passed through the inside of the soft channel 105, and the puncture hard tube core 102 is passed through the return ring 101 and the screw at the tail end of the soft channel. The joint arm 104 is fixed, and under the endoscope, the angle of the joint arm is adjusted, and the brain tissue is punctured according to the required position and angle. After reaching the lesion, the deepest part of the lesion can be punctured according to the endoscopic findings, and the nut 205 is moved outward to tighten the joint arm fixation. The ramp ladder 301 continues to move toward the fixing belt body 302 to tighten and fix the puncture channel, and the puncture hard tube core 102 is separated and taken out. The fixed soft channel 105 can be bent to a certain extent to make the brain tissue non-destructively displaced, so as to better observe the lesion removal and surrounding brain tissue conditions, which is conducive to complete lesion removal and hemostasis.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A neuroendoscopic soft channel with an adjustable skull fixation arm capable of retracting the scalp, characterized in that: It comprises a puncture channel (1) and a fixed arm structure, wherein the fixed arm structure comprises a retractor fixator (2) and a fixing belt (3), and the puncture channel (1) is connected to the retractor fixator (2) via the fixing belt (3); The puncture channel (1) comprises a return ring (101), a puncture hard tube core (102), a hard tube core head (103), a soft channel tail end thread (104), a soft channel (105), a soft channel head end opening (106) and a scale (107); the head end of the puncture hard tube core (102) is circular, the tail end is provided with a return ring (101), and the return ring (101) has a thread; the tail end of the soft channel (105) is provided with a soft channel tail end thread (104); the puncture hard tube core (102) The soft channel (105) is fixed as a whole via a return ring (101) and a thread (104) at the tail end of the soft channel. A soft channel head end opening (106) is provided at the front end of the soft channel (105). The width of the soft channel head end opening (106) is consistent with the width of the junction between the circular head and the body of the puncture hard tube core (102). The width of the soft channel head end opening (106) is closely matched with the head end of the puncture hard tube core (102). The puncture hard tube core (102) and the soft channel (105) are provided with scales (107); The retractor fixator (2) comprises a hollow rectangular body (201), a joint arm (202), an upper cylinder (203), a horizontal cylinder (204), a nut (205), a tail wing (206), a retractor fixator base (207), a screw hole (208), a screw (209) and a fixing steel rope (210). The hollow opening of the hollow rectangular body (201) passes through the fixing belt body (302). The joint arm (202) is composed of a plurality of hollow "bowl"-shaped joint openings connected at the bottom. The upper cylinder (203) is connected to the bottom of the joint arm (202). (203) and the horizontal cylinder (204) are both hollow structures. The fixing steel rope (210) passes through the joint arm (202), the upper cylinder (203), and the interior of the horizontal cylinder (204) and is connected to the hollow rectangular body (201) and the nut (205). The nut (205) is provided with a thread inside and is threadedly connected to the horizontal cylinder (204). By rotating the nut (205) outward, the joints of the joint arm can be tightened and fixed. The nut (205) is provided with a tail wing (206). The bottom of the upper cylinder (203) is fixed to the base (207) of the retractor fixer. The fixing belt (3) comprises a ramp (301), a fixing belt body (302), an adjustment switch (303), an adjustment spring (304), a rectangular opening (305) and a fixing belt base (306); one end of the fixing belt body (302) is a plurality of ramps (301), and the other end is a fixing belt base (306); the lower end of the fixing belt base (306) is connected to the fixing belt body (302); the lower end of the fixing belt base (306) is provided with a rectangular opening (305), and the size of the rectangular opening (305) is the same as that of the fixing belt body (302). The fixing belt base (306) has one side of the fixing belt connected to the adjustment switch (303), the adjustment switch (303) and the fixing belt base (306) are connected via an adjustment spring (304), and the lower half of the adjustment switch (303) is in the form of an inclined surface; the puncture hard tube core (102) is made of a hard transparent material, the soft channel (105) is made of a transparent soft material, and the soft channel (105) and the puncture hard tube core (102) can be provided with a plurality of models of different thicknesses to meet the needs of different channel sizes during surgery; the fixing belt body (302) is made of a soft material.

2. The neuroendoscopic soft channel with a scalp-retractable and adjustable skull fixation arm according to claim 1, characterized in that: The two ends of the retractor fixer base (207) are in an arc shape with a narrow upper part and a wide lower part. A screw hole (208) is provided at each end of the base, and a screw (209) is provided in the screw hole (208).

3. The neuroendoscopic soft channel with a scalp-retractable and adjustable skull fixation arm according to claim 1, characterized in that: The specific method of use is as follows: when in use, use screws (209) to fix the retractor fixator base (207) on the skull through the screw holes (208) around the bone window; move the nut (205) inward to the bottom and loosen the joint arm (202); the fixing belt body (302) passes through the hollow opening of the hollow rectangular body (201), the ramp ladder (301) passes through the rectangular opening (305), and an elastic ring is formed by adjusting the tip of the switch (303), and the puncture channel passes through this elastic ring. Before puncture, first pass the puncture hard tube core (102) through the inside of the soft channel (105), fix it through the return ring (101) and the soft channel tail end thread (104), and adjust the angle of the joint arm under the endoscope to puncture according to the required position and angle. After entering the brain tissue and reaching the lesion, the deepest part of the lesion can be punctured according to the endoscopic observation, the nut (205) is moved outward to tighten the joint arm, and the ramp (301) continues to move toward the fixing belt body (302) to tighten and fix the puncture channel, and the puncture hard tube core (102) is separated and removed. The fixed soft channel (105) can be bent to a certain extent to allow the brain tissue to be non-destructively displaced, so as to better observe the lesion removal and surrounding brain tissue conditions, which is conducive to completely removing the lesion and stopping bleeding.

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