CN102641143B

CN102641143B - Novel viewSite brain access system (VBAS)

Info

Publication number: CN102641143B
Application number: CN201210140713.9A
Authority: CN
Inventors: 刘伟; 王燕; 尹卫宁
Original assignee: Qingdao Municipal Hospital
Current assignee: Qingdao Municipal Hospital
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2014-09-10
Anticipated expiration: 2032-05-09
Also published as: CN102641143A

Abstract

The invention provides a novel viewSite brain access system (VBAS). The VBAS comprises a tubular main body which is made of a transparent material, has elliptical section and has slight taper in the axial direction, wherein an edge is arranged at the upper end of the tubular main body; and a connection handle is arranged on the margin of the edge. The VBAS is characterized in that a matched expansion tube is arranged on the inner side of the lower end of the tubular main body; a lower sealing ring which is elastically locked outside the expansion tube is arranged at the lower end of the tubular main body; an upper sealing ring which is elastically tensioned on the inner side of the tubular main body is arranged at the upper end of the expansion tube; and a circular and smooth bottom necking is arranged at the bottom of the expansion tube. The VBAS has the following advantages: the height of the tubular main body and the aperture of the bottom necking can be adjusted as required, thus the production and operation costs are greatly lowered; and the VBAS is unnecessary to replace during operation, thus avoiding causing extra harms to patients.

Description

Novel brain pull device

Technical field

The present invention relates to a kind of novel brain pull device, be widely used in cerebral glioma, cerebral cavernous angioma, meningioma, the excision of occupying lesion in the brains such as tumor of ventricle and metastatic brain tumor.

Background technology

The disposable use brain pull device (VBAS) that VYCOR MEDICAL company of the prior art Shi Shi U.S. designs and manufactures, it is widely used in cerebral glioma, cerebral cavernous angioma, meningioma, the excision of occupying lesion in the brains such as tumor of ventricle and metastatic brain tumor.It can accurately expose operative site, the operation path and the clear visual field that provide at least one surgical operating instrument to enter cerebral tissue inside.Alleviate to greatest extent the brain health tissues damage causing because of tractive, thereby reduce or avoid a series of complication and the sequela that cause because of brain tissue impairment.Meanwhile, simple to operate effective, obviously improve operation efficiency, shorten operating time, the threat of overall reduction postoperative infection, offers help with rehabilitation for patient revives as early as possible.The cross section that this VBAS is mainly made up of transparent material is oval, and axially slightly the tubular body of tapering forms, and is provided with in the top edge, is provided with connection handle on the one side at this edge; Be provided with round and smooth reducing in the bottom of this VBAS.In order to adapt to the requirement of Different Individual and different operations, need to be equipped with the VBAS of differing heights and different reducing bores, this has just increased operation cost greatly, and may in operation, change pull device, and patient is caused to extra injury.

Summary of the invention

The present invention aims to provide a kind of novel brain pull device, the VBAS that need to be equipped with differing heights and different reducing bores existing to solve prior art, and greatly increased operation cost, and may in operation, change pull device, patient is caused to the problem of extra injury.

Technical scheme of the present invention is: a kind of novel brain pull device, comprise that the cross section of being made up of transparent material is oval, the axial slightly tubular body of tapering, be provided with in the top edge, edge at this edge is provided with connection handle, it is characterized in that, be provided with the telescoping tube of cooperation in the inner side, lower end of described tubular body, be provided with the lower sealing ring of elastic locking in telescoping tube outside in the lower end of this tubular body, be provided with the upper sealing ring of elastic tension in this tubular body inner side in the upper end of this telescoping tube; Be provided with round and smooth bottom reducing in the bottom of this telescoping tube.

Described bottom reducing is fixed structure.

Described bottom reducing is petal structure, is equipped with the groove along circumference in inner side and the outside of the root of petal; Petal outside in this bottom reducing is provided with elastica.

Also comprise the expansion ring supporting with described bottom reducing, be provided with in the outer of this expansion ring along the draw-in groove that expands ring circumference; This expansion ring of multiple different bores is set.

Advantage of the present invention is: can adjust as required the height of tubular body and the bore of bottom reducing, greatly reduce and produce and operation cost; Also needn't in operation, change pull device, avoid patient to cause extra injury.

Brief description of the drawings

Fig. 1 is population structure (not elongation state, the broken section) schematic diagram of first embodiment of the invention;

Fig. 2 is the schematic diagram of embodiment elongation state in Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the population structure front view of second embodiment of the invention;

Fig. 5 is the partial sectional view of Fig. 4;

Fig. 6 is the top view of Fig. 4;

Fig. 7 is the enlarged drawing at P place in Fig. 5;

Fig. 8 is the schematic diagram of (with expanding ring) after bottom reducing expands in Fig. 5;

Fig. 9 removes the schematic diagram after the expansion ring in the reducing of bottom in Fig. 8;

Figure 10 is the top view of Fig. 8;

Figure 11 is the top view of Fig. 9;

Figure 12 is that the present invention expands the front view after ring;

Figure 13 is the A-A cutaway view of Figure 12.

Detailed description of the invention

Referring to Fig. 1～Fig. 3, the first embodiment of a kind of novel brain pull device of the present invention, comprises that the cross section of being made up of transparent material is oval, the axial slightly tubular body 2 of tapering, is provided with in the top edge 1, is provided with connection handle 10 at the edge at this edge 1.Be provided with the telescoping tube 3 of cooperation in the inner side, lower end of described tubular body 2, be provided with the lower sealing ring 6 of elastic locking in telescoping tube 3 outsides in the lower end of this tubular body 2, be provided with the upper sealing ring 5 of elastic tension in these tubular body 2 inner sides in the upper end of this telescoping tube 3.Be provided with round and smooth bottom reducing 4 in the bottom of this telescoping tube 3, upper sealing ring 5 and lower sealing ring 6 all can adopt medical grade rubber to make, and the material of tubular body 2 and telescoping tube 3 is medical plastic or the disclosed material of other prior aries.Bottom reducing 4 in this embodiment is fixed structure, and its bore is fixed.

In telescoping tube 3 retraction tubular bodies 2 in Fig. 1, at needs overtime, can pull out as required telescoping tube 3 downwards local or whole, be the state that telescoping tube 3 all stretches out shown in Fig. 2.

Referring to Fig. 4-Figure 13, this embodiment is that described bottom reducing 4 is the structure that can change bore, bottom reducing 4 is petal structure, inner side and outside at the root of multiple petals 41 are equipped with the groove 8 of inner side and the groove 9 in outside along circumference, and its effect is to make petal 41 easily bending herein.Petal 41 outsides in this bottom reducing are provided with elastica 42, and in the situation that there is no external force, elastica 42 gathers together multiple petals 41 (very close to each other between each petal 41, referring to Fig. 4-Fig. 6), bore minimum now; In the time that needs expand bore, with the expansion ring 7(of a suitable bore referring to Figure 12 and Figure 13) snap in downwards in bore from the inside of bottom reducing 4, bore edge is snapped in the draw-in groove 71 that expands ring 7 outers, the bore of bottom reducing 4 is now extended, between each petal 41, occur the gap of pointed shape, but outside also has elastica 42 coated (referring to Fig. 8-Figure 11).Elastica 42 can adopt medical silica-gel.

The third embodiment of the present invention is that two embodiment mutually combine (not shown) above, and the bottom reducing 4 being about in the first embodiment changes the petal structure in the second embodiment into, and other are constant.There are two functions can extending height and expand bottom reducing 4 bores.

Claims

1. a novel brain pull device, comprise that the cross section of being made up of transparent material is oval, the axial slightly tubular body of tapering, be provided with in the top edge, edge at this edge is provided with connection handle, it is characterized in that, is provided with the telescoping tube of cooperation in the inner side, lower end of described tubular body, be provided with the lower sealing ring of elastic locking in telescoping tube outside in the lower end of this tubular body, be provided with elasticity in the upper end of this telescoping tube and be stretched in the upper sealing ring of this tubular body inner side; Be provided with round and smooth bottom reducing in the bottom of this telescoping tube;

Described bottom reducing is petal structure, is equipped with the groove along circumference in inner side and the outside of the root of petal; Petal outside in this bottom reducing is provided with elastica; In the situation that there is no external force, elastica gathers together multiple petals, make between each petal very close to each other, now bottom reducing bore minimum; In the time that needs expand bore, snap in downwards in bore from the inside of bottom reducing with the expansion ring of a suitable bore, bore edge is snapped in the draw-in groove that expands ring outer, and the bore of bottom reducing is now extended, occurs the gap of pointed shape between each petal; Configure this expansion ring of multiple different bores;

Described upper sealing ring and lower sealing ring all adopt medical grade rubber to make, and the material of tubular body and telescoping tube is medical plastic, and elastica adopts medical silica-gel.