A transcranial endoscopic surgical channel protection device

Abstract

The present application discloses a transcranial endoscopic surgical channel protection device, comprising a conveyor and a sheath net arranged at the front end of the conveyor, which guides a microscope or endoscope to perform various operations during surgery, can protect the soft tissue of the skull and brain, expand the channel to alleviate the space-occupying effect of the scope, and effectively isolate and reduce lens fogging and infection; the sheath net has a soft channel with high radial support force, and can adaptively adhere to the wall (brain tissue) according to the shape and size of the opening of the skull and brain.

Description

Technical Field

[0001] The present application relates to a transcranial endoscopic surgery channel protection device, belonging to the technical field of transcranial endoscopic surgery. Background Art

[0002] There are two main types of publicly available technology devices currently used in transcranial endoscopic surgical channels:

[0003] One is the brain retractor commonly used in neurosurgery. Traditional brain retractors are usually hard steel or other metal alloy strips with steep or well-defined edges and limited surface area. During surgery, these retractors are introduced into the brain tissue and then pulled hard to separate or elevate the brain tissue to facilitate surgery. However, brain tissue is very soft and delicate, especially in cases of brain injury, ischemia or cerebral edema. The brain retractor may directly compress and cause local brain tissue contusion, or cause local brain tissue ischemia under the brain pressure plate, resulting in complications of "retraction injury". The movement of the brain pressure plate causes the surgical field to shrink or expand, affecting the operation or aggravating the retraction injury of brain tissue.

[0004] The other is a disposable surgical guide device, comprising: a hollow retractor with an open sleeve structure, which gradually contracts as it approaches the distal end of the hollow retractor and has an elliptical cross-section; a guide for installation in the sleeve structure of the hollow retractor, which gradually contracts as it approaches the distal end of the guide and has an elliptical cross-section; this device more or less has the above-mentioned brain retractor problems, because the channel it creates is also a hard channel, which may touch the brain tissue and cause damage during the operation, and its shape is fixed and cannot adapt to the shape of the craniotomy mouth. Summary of the invention

[0005] When used by doctors, the existing related devices will not only increase the operation time and make the operation cumbersome, but also cause more or less damage to the cranial brain tissue, which may directly compress and cause local brain tissue contusion, and may also cause local brain tissue ischemia under the brain pressure plate, resulting in complications of "retraction injury", and the movement of the brain pressure plate may cause the surgical field to narrow or expand, thereby affecting the operation or aggravating the situation of brain tissue retraction injury. In order to solve the above-mentioned various problems existing in cranial brain surgery with existing devices, according to one aspect of the present application, a transcranial endoscopic surgical channel protection device is provided, including a main body, the main body including a conveyor and a sheath net arranged at the front end of the conveyor;

[0006] The conveyor comprises an outer sheath tube and a control unit which are fixedly connected;

[0007] The outer sheath tube wraps the sheath net, the sheath net is sleeved on the support rod, and the front end of the support rod is provided with a conical tip;

[0008] The tip is designed to assist in entering the cranial opening to minimize damage to brain tissue during entry; secondly, it can prevent the sheath net from accidentally detaching from the outer sheath tube;

[0009] A plug is provided in the middle of the support rod, and when the outer sheath tube is withdrawn, the plug fixes the sheath net to ensure that the position of the sheath net does not move;

[0010] The control unit is provided with a slider connected to the outer sheath tube, and highly elastic paddles 1 and 2 are installed on both sides of the slider, and the paddles 1 and 2 are respectively threadedly connected to the slider, and the upper and lower surfaces of the slider are also provided with track bosses adapted thereto;

[0011] The outer surface of the control part is provided with two buckles, a push rod arranged inside the control part is fixedly connected to one of the buckles, a sliding track and a matching spring are arranged between the two, and a wedge-shaped step position matching the paddle is arranged on the push rod;

[0012] A wedge-shaped step position matching the second paddle is also provided inside the middle shell of the control part.

[0013] Optionally, the sheath mesh is woven and wound by one of hard plastic wires, nickel-titanium wires, and stainless steel wires, and is heat-treated and shaped under special gas protection.

[0014] Optionally, both the outer surface and the inner surface of the sheath net are coated with elastic waterproof material.

[0015] Optionally, the waterproof material is formed by coating at least one of PET, TPU, ePTFE or silicone.

[0016] The sheath net is a mesh structure made of single wire, double wire or multiple wires, and the inside and outside of the mesh are coated with elastic waterproof material, so that the sheath net has good shrinkage and expansion properties. After expansion, it can effectively prevent the blood flow or secretions in the brain from entering the surgical area and affecting the surgical field of view.

[0017] At the same time, the sheath net has a soft channel with high radial support force, which can adaptively adhere to the wall (brain tissue) according to the shape and size of the opening of the skull;

[0018] Optionally, the tip is connected to the support rod in a limiting manner.

[0019] Optionally, the plug and the support rod are fixed to each other at a distance of 8-13 cm from the tip.

[0020] Optionally, the buckle position and the push rod are integrally injection-molded.

[0021] Optionally, the spring is installed between the push rod and the upper shell of the control part.

[0022] Optionally, a support portion is provided at the tail of the conveyor, and the support portion is arranged in an arc shape. The support portion and the two buckles form a three-point support, which conforms to the ergonomic mechanical properties, perfectly fits the operator's palm, is suitable for different palm sizes and finger thicknesses, and is convenient for palm force in various usage scenarios. The three-point supported conveyor can safely and stably transmit the sheath net, and gradually release the sheath net using the slide rail and the wedge-shaped step.

[0023] When in use, the buckle connected to the push rod will drive the slider up and down, and each time it moves up, the second paddle and the wedge-shaped step in the middle shell will be stopped, so that the push rod can keep the outer sheath tube stable during the downward process under the action of the spring thrust, so that the outer sheath tube is gradually and slowly withdrawn, releasing the sheath net, and the sheath net then expands and opens according to its own self-expansion characteristics when the outer sheath tube is withdrawn, and anchors to the intracranial brain tissue, and then slowly withdraws from the conveyor.

[0024] The beneficial effects of this application include:

[0025] The transcranial endoscopic surgical channel protection device provided in the present application guides a microscope or endoscope to perform various operations during surgery, can protect the soft tissue of the cranium and brain, expand the channel to alleviate the space-occupying effect of the scope, and effectively isolate and reduce lens fogging and infection;

[0026] The sheath net has a soft channel with high radial support force, which can adaptively adhere to the wall (brain tissue) according to the shape and size of the opening of the skull. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A front view of a channel protection device provided in one embodiment of the present application;

[0028] Figure 2 A left view of a channel protection device provided in one embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the internal structure of a channel protection device provided in one embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the front-end structure of a channel protection device provided in one embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the assembly structure of a slider, a first paddle and a second paddle of a channel protection device provided in one embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the usage status of a channel protection device provided in one embodiment of the present application.

[0033] List of parts and reference numerals:

[0034] 001-main body; 010-sheath net; 020-conveyor; 021-slide track; 022-buckle position; 023-slider; 024-paddle one; 025-paddle two; 026-push rod; 027-middle shell; 031-outer sheath tube; 032-support rod; 033-tip; 034-plug; 035-spring. DETAILED DESCRIPTION

[0035] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0036] Example 1

[0037] like Figures 1 to 6 As shown, according to an embodiment of the present application, a transcranial endoscopic surgery channel protection device is provided, comprising a main body 001, wherein the main body 001 comprises a conveyor 020 and a sheath net 010 disposed at the front end of the conveyor 020;

[0038] The conveyor 020 includes an outer sheath tube 031 and a control unit that are fixedly connected;

[0039] The outer sheath tube 031 wraps the sheath net 010, and the sheath net 010 is sleeved on the support rod 032. The front end of the support rod 032 is provided with a conical tip 033, and the tip 033 is limitedly connected to the support rod 032;

[0040] The tip 033 is designed to assist in entering the cranial opening to minimize damage to brain tissue during entry; and secondly, it can prevent the sheath net 010 from accidentally detaching from the outer sheath tube 031.

[0041] A plug 034 is provided in the middle of the support rod 032. When the outer sheath tube 031 is withdrawn, the plug 034 fixes the sheath net 010 to ensure that the sheath net 010 does not move. The plug 034 and the support rod 032 are fixed to each other at a distance of 10 cm from the tip 033.

[0042] The control unit is provided with a slider 023 connected to the outer sheath 031, and highly elastic paddles 1 024 and 2 025 are installed on both sides of the slider 023. The paddles 1 024 and 2 025 are respectively threadedly connected to the slider 023, and the upper and lower surfaces of the slider 023 are also provided with track bosses adapted thereto;

[0043] The outer surface of the control part is provided with two buckle positions 022, and a push rod 026 arranged inside the control part is integrally injection-molded with one of the buckle positions 022, a slide track 021 and a matching spring 035 are arranged between the two, and the spring 035 is installed between the push rod 026 and the upper shell of the control part, and a wedge-shaped step is arranged on the push rod 026 to match the paddle 1 024;

[0044] The interior of the middle shell 027 of the control unit is also provided with a wedge-shaped step position adapted to the second paddle 025 .

[0045] The sheath net 010 is woven and wound by one of hard plastic wires, nickel-titanium wires, and stainless steel wires, and is heat-treated and shaped under special gas protection.

[0046] The outer surface and the inner surface of the sheath net 010 are coated with elastic waterproof material.

[0047] In this embodiment, the waterproof material is made of PET film.

[0048] The sheath net 010 is a mesh structure woven by double wires, and the inside and outside of the mesh are coated with elastic waterproof materials, so that the sheath net 010 has good contraction and expansion properties. After expansion, it can effectively prevent the blood flow or secretions in the brain from entering the surgical area and affecting the surgical field.

[0049] At the same time, the sheath net 010 has a soft channel with high radial support force, which can adaptively adhere to the wall (brain tissue) according to the shape and size of the opening of the skull;

[0050] The tail of the conveyor 020 is provided with a support part, which is arranged in an arc shape. The support part and the two buckle positions 022 form a three-point support, which conforms to the ergonomic mechanical properties, perfectly fits the operator's palm, is suitable for different palm sizes and finger thicknesses, and is convenient for palm force in various usage scenarios. The conveyor 020 with three-point support can safely and stably transmit the sheath net 010, and gradually release the sheath net 010 using the slide rail and the wedge-shaped step.

[0051] When in use, the buckle 022 connected to the push rod 026 will drive the slider 023 up and down, and each time it moves up, the paddle 2 025 and the wedge-shaped step in the middle shell 027 will be stopped, so that the push rod 026 can keep the outer sheath 031 stable during the downward movement under the thrust of the spring 035, so that the outer sheath 031 is gradually and slowly withdrawn, releasing the sheath net 010, and the sheath net 010 then expands and opens according to its own self-expansion characteristics when the outer sheath 031 is withdrawn, and anchors to the intracranial brain tissue, and then slowly withdraws from the conveyor 020.

[0052] The above description is only a partial embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the above disclosed technical content to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A transcranial endoscopic surgical channel protection device, characterized in that: It comprises a main body, wherein the main body comprises a conveyor and a sheath net arranged at the front end of the conveyor; The conveyor comprises an outer sheath tube and a control unit which are fixedly connected; The outer sheath tube wraps the sheath net, the sheath net is sleeved on the support rod, and the front end of the support rod is provided with a conical tip; A plug is provided in the middle of the support rod, and when the outer sheath tube is withdrawn, the plug fixes the sheath net to ensure that the position of the sheath net does not move; A slider connected to the outer sheath is disposed inside the control unit, and highly elastic paddles 1 and 2 are installed on both sides of the slider, and the paddles 1 and 2 are respectively threadedly connected to the slider, and track bosses adapted to the slider are also disposed on the upper and lower surfaces of the slider; The outer surface of the control part is provided with two buckles, a push rod arranged inside the control part is fixedly connected to one of the buckles, a sliding track and a matching spring are arranged between the push rod and one of the buckles, and a wedge-shaped step position matching the paddle is arranged on the push rod; The middle shell of the control part is also provided with a wedge-shaped step position adapted to the second paddle; One of the buckles is integrally injection-molded with the push rod; The spring is installed between the push rod and the upper shell of the control part; The tail of the conveyor is provided with a supporting portion, which is arranged in an arc shape.

2. A transcranial endoscopic surgery channel protection device according to claim 1, characterized in that: The sheath net is formed by weaving and winding one of hard plastic wire, nickel titanium wire and stainless steel wire, and is heat-treated and shaped.

3. A transcranial endoscopic surgery channel protection device according to claim 2, characterized in that: The outer surface and the inner surface of the sheath net are coated with elastic waterproof material.

4. A transcranial endoscopic surgery channel protection device according to claim 3, characterized in that: The waterproof material is formed by coating at least one of PET, TPU, ePTFE or silica gel.

5. The transcranial endoscopic surgery channel protection device according to claim 1, characterized in that: The tip is position-limitingly connected to the support rod.

6. The transcranial endoscopic surgery channel protection device according to claim 1, characterized in that: The plug and the support rod are fixed to each other at a distance of 8-13 cm from the tip.

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