CN201631373U - Neuroendoscopic cranial surgery protective sheath system - Google Patents

Abstract

The utility model relates to a neuroendoscopic cranial operation protective sheath system. The protective sheath system includes a guide needle for inserting brain tissue, a syringe connected with the guide needle for extracting cerebrospinal fluid or diseased brain tissue fluid, a hollow brain tissue anti-cutting protective rod, a protective sheath, and a protective sheath for clamping and connecting with the protective sheath. Protective sheath clip attached to snake-shaped automatic retractor. The utility model uses a guide needle inserted into the ventricle system to extract cerebrospinal fluid or lesion tissue in the brain parenchyma, and achieves the purpose of accurately determining the location of the lesion; the inserted guide needle also serves as a guide path for the protective sheath of neuroendoscopic craniocerebral surgery Function; on the one hand, the transparent protective sheath facilitates the observation of the surrounding environment of the brain tissue during craniocerebral surgery; Safety and efficacy of endoscopic use in the ventricular system and brain tissue.

Description

Neuroendoscopic cranial surgery protective sheath system

technical field

The utility model relates to a protective sheath system for neuroendoscopic craniocerebral surgery. The protective sheath system is mainly used to protect brain tissue in neuroendoscopic craniocerebral surgery and belongs to the field of medical devices.

Background technique

Brain surgery under neuroendoscopy has become an important direction in the development of minimally invasive neurosurgery. The core of this technology is to further reduce the trauma of previous surgical approaches, expand the exposure of lesions, and increase the chance of intuitive resection of lesions. Neuroendoscopic surgery can be mainly divided into extrathecal surgery and intrathecal surgery. Extrathecal surgery mainly uses the natural physiological cavity of the human body to perform skull base surgery. A typical extrathecal surgery is transnasal skull base surgery, which can use the natural passage of the nasal cavity to provide a wider surgical exposure field, a larger operating angle, and the neuroendoscope can be inserted deep into the surgical area. Observing the anatomical structure of the operation area at close range makes the past "stand outside the door and look at the house change into looking at the house inside the house". Through the close observation of the anatomical structure, the tumor resection is safer and more thorough, and the complications can be significantly reduced. At the same time, a better cosmetic effect can be achieved. Since no nasal speculum is needed to dilate the nasal cavity, this operation The trauma of the operation is small, the patient is more comfortable after the operation, and the recovery is fast after the operation. It is a veritable minimally invasive operation.

However, there are also some operations that require intrathecal surgery. Although conventional intrathecal surgery can use its own surgical sheath to perform general ventricular system surgery, it often results in limited movement of the endoscope, narrow operating space, difficulty in hemostasis, and inability to deal with the brain parenchyma. Or the large lesions of the ventricular system, so the advantages of endoscopy cannot be exerted, and serious surgical side injuries may be caused.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a neuroendoscopic cranial operation protective sheath system with ingenious and reasonable structure and accurate positioning.

According to the technical solution provided by the utility model, the protective sheath system for neuroendoscopic craniocerebral surgery includes:

A guide needle, the guide needle is a hollow tube, the front end of the guide needle is needle-shaped and distributed with small holes for the outflow of cerebrospinal fluid or diseased brain tissue fluid;

a syringe, the syringe is connected to the tail end of the guide needle by a pluggable hose;

A hollow anti-cutting protection rod for brain tissue, the tail end of the anti-cutting protection rod for brain tissue is open, the head end is closed, and the center of the head end is provided with a pinhole for the guide needle to pass through;

A protective sheath, the protective sheath includes a hollow transparent tube and a support ring fixedly connected to the end of the transparent tube, the inner diameter of the protective sheath is larger than the outer diameter of the brain tissue anti-cutting protection rod, and the brain tissue anti-cutting protection rod is inserted in the protective sheath;

A protective sheath clamp, one end of the protective sheath clamp is used to be fixed on the snake-shaped automatic retractor, and the other end is a clamp, which is used to clamp the support ring at the tail end of the protective sheath.

As a further improvement of the utility model, the head ends of the brain tissue anti-cutting protection rod and the protection sheath are arranged in an arc-shaped structure.

As a further improvement of the utility model, the guide needle and the support ring are made of stainless steel; the transparent tube of the brain tissue anti-cutting protection rod and the protective sheath is made of plexiglass.

As a further improvement of the utility model, the transparent tube in the protective sheath is connected to the supporting ring by bonding.

Compared with the prior art, the utility model has the advantages that:

(1) Using the guide needle to insert into the ventricular system, the cerebrospinal fluid or the lesion tissue in the brain parenchyma can be extracted, and the purpose of accurately determining the lesion location is achieved.

(2.) The inserted guide needle also plays the role of guiding the path for the neuroendoscopic cranial surgery protection sheath.

(3) On the one hand, the transparent protective sheath facilitates the observation of the surrounding environment of the brain tissue during craniocerebral surgery; The safety and efficacy of endoscopy in the ventricular system and brain tissue were evaluated.

Description of drawings

Fig. 1 is a structural schematic diagram of a guide needle and a syringe in the present invention.

Fig. 2 is a structural schematic diagram of the anti-cutting protective rod for brain tissue in the present invention.

Fig. 3 is a schematic diagram of the structure of the protective sheath in the present invention.

Fig. 4 is a schematic structural diagram of the protective sheath clip in the present invention.

Explanation of reference signs: 1-small hole, 2-guiding needle, 3-flexible tube, 4-syringe, 5-brain tissue cutting protection rod, 6-needle hole, 7-protective sheath, 8-support ring, 9- Transparent tube, 10-clamp, 11-protective sheath clip, 12-bolt hole.

Detailed ways

The present invention will be further described below in conjunction with specific drawings and embodiments.

As shown in the figure, the utility model is mainly composed of guide needle 2, hose 3, syringe 4, brain tissue anti-cutting protection rod 5, transparent protective sheath 7 and protective sheath clip 11 and other components.

As shown in Figure 1, the guide needle 2 is a hollow stainless steel tube. The outer diameter of the guide needle 2 is about 2.2 mm, and the inner diameter is about 1.6 mm. Outflow small hole 1; the tail end of the guide needle 2 is connected to the syringe 4 with a pluggable silicone hose 3, and the syringe 4 is used to extract cerebrospinal fluid or diseased brain tissue fluid to determine the location of the lesion; the silicone hose 3 and the syringe 4 Can be separated from the guide needle 2 at any time.

As shown in Figure 2, the brain tissue anti-cutting protection rod 5 is hollow inside, the tail end of the brain tissue anti-cutting protection rod 5 is open, the head end is closed, and the head end is set as an arc-shaped structure to reduce the damage to the brain tissue during the operation. Secondary damage; the center of the head end is provided with a pinhole 6 for the guide needle 2 to pass through, and the aperture of the pinhole 6 is about 2.5 mm; the brain tissue anti-cutting protection rod 5 is preferably made of plexiglass material.

As shown in Figure 3, the protective sheath 7 is composed of a hollow transparent tube 9 and a support ring 8 fixedly connected to the tail end of the transparent tube 9 by superglue, and the inner diameter of the protective sheath 7 is larger than that of the brain tissue anti-cutting protective rod 5. Outer diameter, the anti-cutting protection rod 5 for brain tissue is inserted in the protective sheath 7, and the head end of the protective sheath 7 is an arc-shaped structure, so as to reduce the secondary damage caused to the brain tissue during the operation; the transparent tube 9 preferably adopts an organic Made of glass material, the support ring 8 is preferably made of stainless steel.

As shown in Figure 4, one end of the protective sheath clamp 11 is provided with a bolt hole 12, and the protective sheath clamp 11 is fixed on the serpentine automatic retractor (not shown in the figure) by screws, and the other end of the protective sheath clamp 11 is a clamp The clamp 10 is used to clamp the support ring 8 at the tail end of the protective sheath 7 .

The concrete application situation of the present utility model is as follows:

When performing craniocerebral surgery under neuroendoscopy, first connect the tail end of the guide needle 2 to the syringe 4 with the silicone hose 3, pierce the tip of the guide needle 2 into the brain tissue, and use the syringe 4 to extract and observe whether there is If there is cerebrospinal fluid or diseased brain tissue, pull out the silicone hose 3 and syringe 4 at the end of the guide needle 2; Fill the internal space of the entire protective sheath 7; insert the brain tissue anti-cutting protection rod 5 and the protective sheath 7 into the brain along the path of the guide needle 2 inserted into the patient's brain, and the guide needle 2 penetrates the brain tissue anti-cutting protection rod The pinhole 6 on the 5 and the guide needle 2 play the role of guiding the path; after the brain tissue anti-cutting protection rod 5 and the protective sheath 7 have completely entered the brain tissue, the guide needle 2 and the brain tissue anti-cutting protection rod 5 are pulled out, Clamp the clamp 10 on the protective sheath clip 11 to the support ring 8 at the tail end of the protective sheath 7, and the protective sheath clip 11 is fixed on the snake-shaped automatic retractor through screws; at this time, the neuroendoscope can be used to pass through the transparent protective sheath 7 Carry out operation, pull out protective sheath 7 slowly after finishing operation, finish operation.

Claims (4)

1. sheath system is protected in the nerve endoscope craniocerebral operations, it is characterized in that including:

One guide needle (2), guide needle (2) is a hollow pipe, guide needle (2) front end is tip-like and is distributed with for cerebrospinal fluid or the effusive aperture of pathological changes cerebral tissue liquid (1);

One syringe (4), syringe (4) utilize pluggable flexible pipe (3) to be connected with guide needle (1) tail end;

The anti-cutting of the cerebral tissue of one hollow guard bar (5), the anti-cutting of cerebral tissue guard bar (5) tail end opening, the head end sealing, the center of head end offers the pin hole (6) that can supply guide needle (2) to pass;

One protection sheath (7), protection sheath (7) includes the transparent tube (9) of hollow and is fixedly connected on the bracing ring (8) of transparent tube (9) tail end, the internal diameter of protection sheath (7) is greater than the external diameter of cerebral tissue anti-cutting guard bar (5), and cerebral tissue anti-cutting guard bar (5) is inserted in the protection sheath (7);

One protection sheath folder (11), an end of protection sheath folder (11) is used for fixing on snakelike self-retaining retractor, and the other end is clamp (10), and clamp (10) is used to clamp the bracing ring (8) of protection sheath (7) tail end.

2. nerve endoscope craniocerebral operations protection sheath system as claimed in claim 1, its feature is that also described cerebral tissue anti-cutting guard bar (5) is made as arc-shaped structure with the head end of protection sheath (7).

3. nerve endoscope craniocerebral operations protection sheath system as claimed in claim 1, its feature is that also described guide needle (2) and bracing ring (8) adopt stainless steel material to make; Described cerebral tissue anti-cutting guard bar (5) and transparent tube (9) adopt pmma material to make.

4. nerve endoscope craniocerebral operations protection sheath system as claimed in claim 1, its feature is that also the transparent tube (9) in the described protection sheath (7) is connected by bonding mode with bracing ring (8).

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