Air bag dilator for neurosurgery department

Abstract

The utility model belongs to the field of neurosurgery, and provides an air bag spreader for neurosurgery, which comprises a puncture mechanism and a spreading mechanism arranged on the puncture mechanism, the double-layer air bag is inflated to be completely expanded and unfolded, so that an operation channel with the diameter of 10 mm is formed for medical staff to conduct treatment or examination work, brain tissue is flexibly expanded through the double-layer air bag, damage is small, more nerve tissue is protected especially in some nerve nucleuses with many nucleuses or in the middle of white matter fibers, and the brain tissue is protected. And meanwhile, the double-layer air bag is transparent and visible and is provided with scales, so that the condition of deep tissues can be known, and convenience is brought to personnel to use.

Description

Technical Field

[0001] The utility model belongs to the field of neurosurgery, in particular to an air bag expander used in neurosurgery. Background Art

[0002] In neurosurgery endoscopic surgery, deep hematoma, and space-occupying lesion surgery, it is necessary to establish a channel for medical staff to use the channel for treatment and detection;

[0003] However, the existing method of establishing a channel by implanting a rigid expander into the brain causes cutting and damage to brain tissue. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an airbag expander for neurosurgery to solve the problems of cutting and damaging brain tissues in the prior art by implanting a hard expander into the brain to establish a channel.

[0005] An airbag expander for neurosurgery comprises a puncture mechanism and an expander mechanism arranged on the puncture mechanism.

[0006] Preferably, the puncture mechanism includes an inner catheter and a guide wire arranged inside the inner catheter.

[0007] Preferably, the expansion mechanism comprises a double-layer airbag arranged on the periphery of the inner catheter, a three-way valve is installed on one side of the double-layer airbag through the airbag catheter, and a scale mark is provided on the surface of the double-layer airbag.

[0008] Preferably, fixing parts are provided on both sides of the double-layer airbag at the top and bottom of the scale mark, and elastic silicone rings are provided between the fixing parts at the periphery of the double-layer airbag.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The utility model inflates the double-layer airbag to make it fully expand and unfold, thereby forming an operation channel with a diameter of 10mm for medical staff to perform treatment or inspection work. The double-layer airbag flexibly expands the brain tissue, causing less damage, especially in some areas with many nerve nuclei or in the middle of white matter fibers, which provides more protection for nerve tissue, and the patient's prognosis may be better, reducing sequelae. At the same time, the double-layer airbag is transparent and visible, with scales, so that the deep tissue situation can be understood, which is convenient for personnel to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the expanded structure of the utility model.

[0014] In the figure:

[0015] 1. Puncture mechanism; 2. Opening mechanism;

[0016] 101. guide wire; 102. inner catheter;

[0017] 201. Three-way valve; 202. Airbag catheter; 203. Fixing piece; 204. Double-layer airbag; 205. Elastic silicone ring; 206. Scale mark. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0019] As attached Figure 1 To Attachment Figure 3 As shown:

[0020] Embodiment 1: The utility model provides an airbag expander for neurosurgery, comprising a puncture mechanism 1 and an expander mechanism 2 arranged on the puncture mechanism 1 .

[0021] Specifically, the puncture mechanism 1 includes an inner catheter 102 and a guide wire 101 disposed inside the inner catheter 102, wherein the guide wire 101 provides a certain hardness and strength for the inner catheter 102 to facilitate puncture.

[0022] Furthermore, the expansion mechanism 2 includes a double-layer airbag 204 arranged on the periphery of the inner catheter 102, a three-way valve 201 is installed on one side of the double-layer airbag 204 through the airbag catheter 202, and a scale mark 206 is set on the surface of the double-layer airbag 204, wherein the double-layer airbag 204 is a hollow double-layer structure similar to a swimming ring, and its inner layer diameter is 10mm.

[0023] Furthermore, fixing parts 203 are provided on both sides of the double-layer airbag 204 at the top and bottom of the scale mark 206 , and elastic silicone rings 205 are provided between the fixing parts 203 at the periphery of the double-layer airbag 204 .

[0024] As can be seen from the above, the medical staff punctures the inner catheter 102 and the double-layer airbag 204 into the bottom of the hematoma cavity according to the surgical planning positioning point and the scale mark 206, and then connects the airbag catheter 202 to the external power gas source pipeline through the three-way valve 201, and slowly inflates the double-layer airbag 204 through the airbag catheter 202 until the double-layer airbag 204 is fully expanded and deployed. When the double-layer airbag 204 is fully expanded and deployed, the elastic silicone ring 205 will be synchronously expanded, so that the inner surface of the double-layer airbag 204 is separated from the inner catheter 102, forming a An operating channel with a diameter of 10 mm is formed, and then the inner catheter 102 is pulled out. At this time, the hematoma can be removed from the operating channel through a neuroendoscope or a microscope to stop the bleeding. After completion, the inner catheter 102 is placed in the initial position in the middle of the double-layer airbag 204 again and the air is slowly deflated. The elastic silicone ring 205 will be squeezed and folded due to the loss of gas inside the double-layer airbag 204 through its own elastic contraction, and the elastic silicone ring 205 will be tightly squeezed and fitted on the inner catheter 102. At this time, after observing that there is no bleeding, the inner catheter 102 can be pulled out to extract the double-layer airbag 204.

[0025] Working principle: Medical staff puncture the inner catheter 102 and the double-layer airbag 204 into the bottom of the hematoma cavity according to the surgical planning positioning point and the scale mark 206, and then connect the airbag catheter 202 to the external power gas source pipeline through the three-way valve 201, and slowly inflate the double-layer airbag 204 through the airbag catheter 202 until the double-layer airbag 204 is fully expanded and unfolded to form an operating channel with a diameter of 10 mm, and then pull out the inner catheter 102. At this time, the hematoma can be removed from the operating channel through a neuroendoscope or microscope to stop bleeding. After completion, the inner catheter 102 is placed in the initial position in the middle of the double-layer airbag 204 and slowly deflated. The elastic silicone ring 205 will be tightly squeezed and fitted on the inner catheter 102 due to the loss of gas inside the double-layer airbag 204. At this time, after observing that there is no bleeding, the inner catheter 102 can be pulled out to extract the double-layer airbag 204.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An airbag expander for neurosurgery, characterized in that: It comprises a puncture mechanism (1), and an expansion mechanism (2) arranged on the puncture mechanism (1); The puncture mechanism (1) comprises an inner catheter (102) and a guide wire (101) arranged inside the inner catheter (102); The expansion mechanism (2) comprises a double-layer airbag (204) arranged on the periphery of the inner catheter (102), a three-way valve (201) is installed on one side of the double-layer airbag (204) through the airbag catheter (202), and a scale mark (206) is arranged on the surface of the double-layer airbag (204).

2. The balloon expander for neurosurgery as claimed in claim 1, characterized in that: Fixing members (203) are provided on both sides of the double-layer airbag (204) at the top and bottom of the scale mark (206), and elastic silicone rings (205) are provided between the fixing members (203) at the periphery of the double-layer airbag (204).

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