CN102631229A

CN102631229A - Novel brain retractor

Info

Publication number: CN102631229A
Application number: CN2012101407105A
Authority: CN
Inventors: 刘伟; 王燕; 尹卫宁
Original assignee: 刘伟; 王燕; 尹卫宁
Current assignee: Qingdao Municipal Hospital
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2012-08-15

Abstract

The invention discloses a novel brain retractor which comprises a tubular main body made of transparent materials, wherein the section of the tubular main body is in an oval and the axial direction is slightly tapered; the upper end of the tubular main body is provided with an edge; and the border of the edge is provided with a connecting handle. The novel brain retractor is characterized in that a matched expansion pipe is arranged inside the lower end of the tubular main body; the lower end of the tubular main body is provided with a lower seal ring of which the elasticity is locked outside the expansion pipe; the upper end of the extension pipe is provided with an upper seal ring of which the elasticity is tensioned inside the tubular main body; and the bottom of the expansion pipe is provided with a round and smooth bottom contraction opening. The novel brain retractor has the advantages that the height of the tubular main body and the aperture of the bottom contraction opening can be adjusted in requirements, the production and operation cost can be greatly lowered, and the retractor needs not to be changed in the operation, so that extra injuries caused on patients can be avoided.

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, the continuous racemose hemangioma of brain, the excision of occupying lesion in the meningioma, brains such as tumor of ventricle and metastatic brain tumor.

Background technology

Prior art is the disposable use brain pull device (VBAS) of design of U.S. VYCOR MEDICAL company and manufacturing; It is widely used in cerebral glioma; The continuous racemose hemangioma of brain, the excision of occupying lesion in the meningioma, brains such as tumor of ventricle and metastatic brain tumor.It can accurately expose operative site, provides at least one surgical operating instrument to get into the cerebral tissue inner operation path and the clear visual field.Alleviate the brain health tissues damage that causes because of tractive to greatest extent, thus a series of complication and the sequela that reduce or avoid causing because of brain tissue impairment.Meanwhile, simple to operately effectively obviously improved operation efficient, shortened operating time, reduced the threat of postoperative infection comprehensively, for the patient revives and rehabilitation is offered help as early as possible.The cross section that this VBAS is mainly processed by transparent material is oval, and axially slightly the tubular body of tapering constitutes, and is provided with the edge in the top, one side at the connection handle that is provided with at this edge; Be provided with slick and sly reducing in the bottom of this VBAS.In order to adapt to the requirement of Different Individual and different surgery, need to be equipped with the VBAS of differing heights and different reducing bores, this has just increased the operation cost greatly, and possibly in operation, change pull device, and patient is caused extra injury.

Summary of the invention

The present invention aims to provide a kind of novel brain pull device; To solve the VBAS that needs that prior art exists are equipped with differing heights and different reducing bores; And increased the operation cost greatly, and possibly in operation, change pull device, patient is caused the problem of extra injury.

Technical scheme of the present invention is: a kind of novel brain pull device comprises that the cross section of being processed by transparent material is oval, the axial slightly tubular body of tapering; Be provided with the edge in the top; Edge at this edge is provided with connection handle, is provided with slick and sly bottom reducing in the bottom of this telescoping tube, it is characterized in that; The reducing of described bottom is petal structure, is equipped with the groove along circumference in the inboard and the outside of the root of petal; The petal outside in this bottom reducing is provided with elastica.

Be provided with the telescoping tube of cooperation in the inboard, lower end of described tubular body, be provided with the lower sealing ring that elasticity is locked at the 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 inboard upper sealing ring of this tubular body.

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

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

Description of drawings

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

Fig. 2 is the sketch map of embodiment elongation state among Fig. 1;

Fig. 3 is the vertical 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 vertical view of Fig. 4;

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

Fig. 8 is that the bottom reducing enlarges the back sketch map of (have and enlarge ring) among Fig. 5;

Fig. 9 removes the sketch map behind the expansion ring in the reducing of bottom among Fig. 8;

Figure 10 is the vertical view of Fig. 8;

Figure 11 is the vertical view of Fig. 9;

Figure 12 is the front view after the present invention enlarges ring;

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

The specific embodiment

Referring to Fig. 1～Fig. 3, first embodiment of a kind of novel brain pull device of the present invention comprises that the cross section of being processed by transparent material is oval, the axial tubular body 2 of tapering slightly, is provided with edge 1 in the top, is provided with connection handle 10 at the edge at this edge 1.Be provided with the telescoping tube 3 of cooperation in the inboard, lower end of described tubular body 2; Be provided with the lower sealing ring 6 that elasticity is locked at 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 the upper end of this telescoping tube 3 in these tubular body 2 inboards.Be provided with slick and sly bottom reducing 4 in the bottom of this telescoping tube 3, upper sealing ring 5 all can adopt medical grade rubber to make with lower sealing ring 6, 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 among this embodiment is a fixed structure, and its bore is fixed.

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

Referring to Fig. 4-Figure 13; This embodiment is that described bottom reducing 4 is for changing the structure of bore; Bottom reducing 4 is petal structure; Be equipped with in the inboard of the root of a plurality of petals 41 and the outside along the groove 8 of the inboard of circumference and the groove 9 in the outside, its effect is to make petal 41 crooked herein easily.Petal 41 outsides in this bottom reducing are provided with elastica 42, are not having under the situation of external force, and elastica 42 gathers together a plurality of petals 41, and (very close to each other between each petal 41, referring to Fig. 4-Fig. 6), the bore of this moment is minimum; When needs enlarge bore; Inside with expansion ring 7 (referring to Figure 12 and Figure 13) reducing 4 from the bottom of a suitable bore snaps in the bore downwards; Make the bore edge snap in the draw-in groove 71 that enlarges ring 7 outers; The bore of bottom reducing 4 of this moment is enlarged, and occurs the gap of pointed shape between each petal 41, but the outside also has elastica 42 to coat (referring to Fig. 8-Figure 11).Elastica 42 can adopt medical silica-gel.

The third embodiment of the present invention is that top two embodiment mutually combine (not shown), and the bottom reducing 4 that is about among first embodiment changes the petal structure among second embodiment into, and other are constant.Have and to extend height and two functions that enlarge bottom reducing 4 bores.

Claims

1. a novel brain pull device comprises that the cross section of being processed by transparent material is oval, the axial slightly tubular body of tapering; Be provided with the edge in the top; Edge at this edge is provided with connection handle, is provided with slick and sly bottom reducing in the bottom of this telescoping tube, it is characterized in that; The reducing of described bottom is petal structure, is equipped with the groove along circumference in the inboard and the outside of the root of petal; The petal outside in this bottom reducing is provided with elastica.

2. novel brain pull device according to claim 1; It is characterized in that; Be provided with the telescoping tube of cooperation in the inboard, lower end of described tubular body; Be provided with the lower sealing ring that elasticity is locked at the 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 inboard upper sealing ring of this tubular body.

3. novel brain pull device according to claim 1 is characterized in that, also comprises the expansion ring supporting with the reducing of described bottom, is provided with along the draw-in groove that enlarges the ring circumference in the outer of this expansion ring; This expansion ring of a plurality of different bores is set.