Unlock instant, AI-driven research and patent intelligence for your innovation.

Deep cerebral dura mater perforating device

A perforating device and dural technology, applied in the field of life sciences, can solve the problems of subdural brain tissue damage, difficulty in grasping the insertion depth, and inability to record and study cells, and achieve the effect of simple operation, light weight and small size

Inactive Publication Date: 2014-01-22
KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, conventional puncture needles are used to puncture the dura mater. Due to the difficulty of grasping the insertion depth and other reasons, it will inevitably cause great damage to the subdural brain tissue, resulting in the inability to record and study the cells in the damaged area.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Deep cerebral dura mater perforating device
  • Deep cerebral dura mater perforating device
  • Deep cerebral dura mater perforating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: see Figure 1-5 . This product is used to puncture the hard meninges on the surface of the macaque superior colliculus with a depth > 25mm, and the effect is very good.

[0026] There are two reaming needles. Conduit 1 is made of stainless steel. Probe 2, perforating needle 3, first reaming needle 4 and second reaming needle 5 are also made of stainless steel, and their needle ends are all triangular with cutting edges, and their other ends are all with cylindrical shape. limit head.

[0027] The catheter 1 has a length of 31 mm and an inner diameter of 0.59 mm. Probe 2 is 32.5 mm in length without the limit head part, and 6 is the limit head. The perforating needle 3 does not have the length of the limiting head part and is 32.5 millimeters, the length of the cutting edge is 3.5 millimeters, and 7 is the limiting head. The first reaming needle 4 does not contain the length of the limit head part and is 32.2 millimeters, and the length of the cutting ed...

Embodiment 2

[0028] Example 2: This product is made of stainless steel and is used to perforate the dura mater on the surface of the inferior colliculus of macaques, and the effect is very good.

[0029] There are two reaming needles. The needle ends of the catheter, the probe, the puncture needle, the first reaming needle and the second reaming needle are all in the shape of a triangular edge, and the other ends of them are all equipped with cuboid-shaped stoppers.

[0030] The catheter has a length of 34 mm and an inner diameter of 0.59 mm. The length of the probe without the limit head part is 35.5 mm, the length of the perforation needle without the limit head part is 35.5 mm, and the length of the cutting edge is 3-3.5 mm. The length of the first reaming needle without the limit head part is 35.2 millimeters, and the length of the cutting edge is 0.5 millimeters. The length of the second reaming needle without the limit head part is 35.2 millimeters, and the length of the cutting ed...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to a device for bioscience. A deep cerebral dura mater drilling device comprises a catheter, a probe, a perforating needle, and two or more than two chambering needles. The probes, the perforating needle and the chambering needles are provided with limiting heads. The catheter is used for guiding the perforating needle and the chambering needles to be inserted into an intra-cerebral pre-set position. The sharp end of the probe is blunt and round, so that the catheter is blocked when being inserted into a cerebrum to reduce damage on brain tissues on a catheter passing path. Furthermore, the device can be used for detecting the existing and the position of the mater. A sharp cutting edge at the sharp end of the perforating needle is the longest and is used for piercing the mater; the sharp end of a first chambering needle is provided with a sharp cutting edge which is shorter than the cutting edge of the perforating needle; and the sharp end of a second chambering needle is provided with the shorter sharp cutting edge and so on. Each chambering needle is used for expanding a mater hole chambered by the chambering needle. A limiting head can control an inserting depth. The device not only can rapidly pass through the deep mater, but also has very small damages to the brain tissue of the mater. Furthermore, the device provided by the invention has the advantages of simple structure, small volume and light weight.

Description

Technical field [0001] The invention belongs to the technical field of life sciences, and in particular relates to a device for perforating deep dura mater of animals or humans. Background technique [0002] In animals and humans, the surface of the brain stem and other parts is covered with a tough dura mater. Deep dural perforation is the first problem to be solved in zoology when studying the function of deep brain regions such as superior colliculus, inferior colliculus and cerebellum. In biological research, when the unit discharge technique is used to record the activity of these brain regions or the microdialysis method is used to sample, because the recording electrode is relatively slender and the strength of the dialysis membrane at the tip of the microdialysis sampling probe is very low, it will be blocked by the dura mater. Bending or damage occurs, so the dura needs to be punctured first before the recording electrode and microdialysis sampling probe can be ins...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
Inventor 杨上川吴晶胡英周马原野胡新天
Owner KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI