Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Accurate positioning brain retractor

A precise positioning and retraction technology, applied in the field of medical devices, can solve the problems of contusion pressure, low accuracy, and elevation of surrounding brain tissue, and achieve the effects of avoiding contusion, convenient operation, and high insertion accuracy

Pending Publication Date: 2022-05-13
THE FIRST AFFILIATED HOSPITAL OF FUJIAN MEDICAL UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Neuronavigation is a positioning technology that designs the surgical plan before the operation and guides the operation in real time during the operation. Its significance lies in determining the location and boundary of the lesion to ensure minimally invasive surgery. Currently, the commonly used one-time brain retraction guide hard catheter After the neuronavigation is used for positioning, the brain tissue is inserted and retracted according to the general direction of the positioning. The accuracy is not high, and it is easy to cause unnecessary contusion to the surrounding brain tissue when constantly trying to find the direction, and the insertion process may easily cause damage to the ventricles or brain Disadvantages of elevated pressure in tissues

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
  • Accurate positioning brain retractor
  • Accurate positioning brain retractor
  • Accurate positioning brain retractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, a precise positioning brain retracting device according to an embodiment of the present invention includes a brain retracting mechanism 1 and a precise positioning guiding mechanism 2 .

[0047] Among them, such as figure 1 As shown, the root-brain retraction mechanism 1 is used to block the soft tissue around the operative field. The brain retraction mechanism 1 includes a retractor and a guide. The retractor is detachably set outside the guide. The length of the retractor, and the guide is used to guide the smooth insertion of the retractor into the soft tissue.

[0048] Among them, such as figure 1 and Figure 10 As shown, the root retractor includes a retraction case 101, the retraction case 101 is a cylindrical structure, and the radial section of the retraction case 101 is elliptical, and the tail end of the retraction case 101 is a flaring end, and the top end of the retracted case 101 is the narrowed end 103.

[0049] Among them, ...

Embodiment 2

[0065] Such as Figure 7 , Figure 9 as well as Figure 10 As shown, the difference between this embodiment and Embodiment 1 is that an annular support seat 107 is fixedly installed on the tail end of the retractable case 101, the annular support seat 107 is elliptical, and the outer ring surface of the annular support seat 107 is A handle 108 is integrally provided.

[0066] Such as Figure 9-Figure 11 As shown, the tail end of the guide case 102 is fixedly installed with an annular fixing seat 104, and the outer ring surface of the annular fixing seat 104 is provided with a locking assembly 3, and the locking assembly 3 is used to connect the annular fixing seat 104 and the annular supporting seat 107 lock each other.

[0067] Among them, such as figure 1 as well as Figure 9-Figure 16 As shown, the locking assembly 3 includes a base 301, a blocking piece 307, a partition 305, a spring seat 304, a cover plate 310, a connecting plate 309, a slider 303, a pressing plate ...

Embodiment 3

[0071] Such as Figure 6 as well as Figure 8 As shown, the difference between this embodiment and Embodiment 2 is that a transparent silica gel protective layer 203 is fixedly installed inside the hard conduit 201, and a plurality of grooves 204 are evenly opened on the inner wall of the transparent silica gel protective layer 203 to allow liquid to enter The hole 202 is a trumpet-shaped liquid inlet hole, and the small end of the liquid inlet hole 202 is set through the transparent silicone protective layer 203 , and the large end of the liquid inlet hole 202 is located on the outer surface of the hard conduit 201 .

[0072] By adopting the above technical scheme, the set transparent silicone protective layer 203 can not only prevent the navigation from being damaged by the friction of the inner wall of the hard catheter 201, but also prevent the hard catheter 201 from easily falling off from the navigation pen. In addition, the transparent silicone protective layer 203 A n...

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 relates to the technical field of medical apparatus and instruments, and discloses a precise positioning brain retraction device which comprises a brain retraction mechanism and a precise positioning guide mechanism, and the brain retraction mechanism is used for blocking soft tissues around a surgical field; and the precise positioning guide mechanism is used for assisting the brain retraction mechanism in precisely entering a surgical target position. According to the invention, the hard catheter can be sleeved on the navigation pen of the IGS (the navigation is influenced by neurosurgery), the hard catheter is accurately inserted into the required operation position through the D mode planning of the IGS, the whole operation process is relatively convenient, the action of repeatedly sucking effusion is not needed, the insertion accuracy is high, and the operation is convenient. After the navigation pen is pulled out and the brain retraction mechanism is inserted in place, when the pressure in the ventricle or brain tissue rises, cerebrospinal fluid or hematocele can flow out of the hard catheter, so that the brain injury caused by high pressure to the brain of a patient is avoided, and the brain retraction mechanism can be directly and successfully inserted into the ventricle or hematoma cavity at a time along the hard catheter. And contusion to surrounding brain tissues in a repeated attempt process is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a precise positioning brain retractor. Background technique [0002] Neuronavigation is a positioning technology that designs the surgical plan before the operation and guides the operation in real time during the operation. Its significance lies in determining the location and boundary of the lesion to ensure minimally invasive surgery. At present, the commonly used one-time use of brain retraction guide hard catheter After the neuronavigation is used for positioning, the brain tissue is inserted and retracted according to the general direction of the positioning. The accuracy is not high, and it is easy to cause unnecessary contusions to the surrounding brain tissue when trying to find the direction, and the insertion process is likely to cause damage to the ventricles or cerebral palsy. Disadvantages of increased pressure within the tissue. [0003] Therefore, a preci...

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
IPC IPC(8): A61B17/02A61B17/34A61B34/20
CPCA61B17/02A61B17/3403A61B17/3415A61B34/20
Inventor 林琳颜小荣王志成江常震傅骏朱建宇王晨阳
Owner THE FIRST AFFILIATED HOSPITAL OF FUJIAN MEDICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com