CN102342851A

CN102342851A - Venous sinus craniotome

Info

Publication number: CN102342851A
Application number: CN2010102400392A
Authority: CN
Inventors: 屈延; 夏勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2012-02-08

Abstract

The invention belongs to the field of medical instruments and particularly relates to a venous sinus craniotome, which comprises a long-strip-shaped gasket, wherein a groove (1) is formed on the long-strip-shaped gasket, a front separation blade (2) and a rear separation blade (3) are respectively arranged at two ends of the groove (1), a handle (4) is arranged on the rear separation blade (3), a draw hook (5) is arranged on the front separation blade (2), the top end of the front separation blade (2) is preferentially provided with a thickened section (6), and the total length of the gasket is preferentially 230-250mm. According to the product provided by the invention, a blank that no special equipment for venous sinus craniotomy is filled, and the venous sinus craniotome with the advantages of simple structure, convenience for operation, and capabilities of preventing a milling cutter or a scroll saw from sliding to two sides and providing safety guarantee for an operation is provided for neurosurgical doctors.

Description

The venous sinus craniotome

Technical field: the invention belongs to medical instruments field, be specifically related to a kind of venous sinus craniotome.

Background technology: in present neurosurgery, can relate to each position of cranium brain, wherein, for the minefield " venous sinus " of former neurosurgery, existing a lot of neurosurgeries relate to.The method that traditional venous sinus is opened is that lobe or boring are opened in the hole side, stings then except that venous sinus top skull, or keeps venous sinus bone bridge, and operating time is long, and wound is big, and operation appears and be not fully up to expectations.

Now appear in the operation of venous sinus at needs; Attempted using milling cutter or scroll saw directly to open cranium; Method is: the other boring of hole; Use the neural son or scroll saw guide plate or other instruments peeled off to separate the adhesion between hole and the skull; Milling cutter or scroll saw knochenbruch are opened venous sinus; But when knochenbruch, often exist milling cutter or scroll saw to slide unexpected in the art and the damage venous sinus, cause the hemorrhage even fracture of venous sinus and difficult treatment or produce serious consequence.

Summary of the invention: the objective of the invention is to open the blank that cranium lacks special equipment in order to fill up venous sinus, for the neurosurgical doctor provide a kind of simple in structure, easy to operate, can avoid milling cutter or scroll saw to slide the venous sinus craniotome of safety guarantee is provided for operation to both sides.

The objective of the invention is to realize through following technical proposals.

Venous sinus craniotome of the present invention is made up of the strip pad, and the middle part of strip pad is provided with groove 1, catch 2 and back catch 3 before two ends are respectively.

In the such scheme, better be provided with handle 4 on the catch 3 of said back.

In the such scheme, better be provided with drag hook 5 on the said preceding catch 2.

In the such scheme, the top of said preceding catch 2 is provided with the section of thickening 6.

In the such scheme, the total length of said pad is preferably 230-250mm.

In the such scheme, the length of said groove 1 is preferably 95-105mm, wide 3.5-5mm, dark 0.8-1.2mm, groove 1 better semicircular in shape.

In the such scheme, said preceding catch 2 long 75-85mm, wide 4.5-5.5mm, thick 0.8-1.2mm, catch 2 front end 4.5-5.5mm part thickens to the 1.5-2.5mm formation section of thickening 6, back side maintenance level to positive (place, groove 1 center of circle face); Being provided with one at catch 2 front end 28-32mm places draws structure 5 to stay to insert scroll saw usefulness;

In the such scheme, said back catch 3 long 55-65mm, wide 4.5-5.5mm, thick 0.8-1.2mm;

In the such scheme, said handle 4 long 45-55mm, wide 7-9mm, thick 3.5-4.5mm, the wide 5-5.5mm of internal diameter, thick 1.0-1.5mm, long 28-32mm.

To be the designer grope the practical technical scheme of science summing up out through repeatedly practising for many years in the present invention, and ins conjunction with surgical experience for many years, we settle a scroll saw guide plate between venous sinus and skull, to protect venous sinus and to protect milling cutter to pass through.But often the guide plate protective effect can't be given full play in the use because of the swing of the direction of milling cutter.In view of the above, we are on surgical experience, practical basis, and having invented a kind of venous sinus, to open the cranium special equipment be venous sinus craniotome of the present invention.It has solved existing venous sinus operation of opening cranium special equipment for want of, and when milling cutter or scroll saw knochenbruch, milling cutter or scroll saw directly act on the venous sinus top, and it causes the damage of venous sinus easily when swinging even tears and the technical barrier of maternal infuries serious consequence.The venous sinus craniotome of the present invention's design; Constitute by the strip pad; The centre of pad is provided with groove; Groove can appropriate separation venous sinus and skull gap; Milling cutter or scroll saw slide along the groove of venous sinus craniotome during work; Make milling cutter or scroll saw at groove protection cutting skull down, be milling cutter or the scroll saw knochenbruch provides technical support and safety curtain, slip causes hemorrhage even reluctant serious consequence to tear venous sinus to both sides to avoid milling cutter or scroll saw.The present invention has improved the safety that the venous sinus place opens cranium greatly, and clinical practice meaning and prospect are great!

The invention is further illustrated by the following examples, and the present invention is not limited only to said embodiment.

Description of drawings

Fig. 1 overall structure sketch map of the present invention.

Fig. 2 is a user mode sketch map of the present invention.

Among the figure: 1. groove; 2. preceding catch; 3. catch after; 4. hands handle; 5. drag hook; 6. the section of thickening.7. milling cutter or scroll saw; 8. venous sinus craniotome; 9. venous sinus.

The specific embodiment:

As shown in Figure 1: venous sinus craniotome of the present invention, constitute by the strip pad, the middle part of strip pad is provided with groove 1, and left end is that preceding catch 2, right-hand member are back catch 3.The shape of this routine said groove 1, position and size can be adjusted arbitrarily, so that be operating as suitable.Preceding catch 2 can design arbitrarily with the structure of back catch 3, and shown in Figure 1 is simple schematic configuration diagram.

As shown in Figure 1: better be provided with handle 4 on the catch 3 of the said back of this example, also handle can be set.Product venous sinus craniotome of the present invention is formed by the stainless steel metal material.Handle 4 can select for use rigid plastics to make, and is placed on the catch 3 of back with handled easily.Product of the present invention also can adopt other material.

As shown in Figure 1: better be provided with drag hook 5 on the catch 2 before this example.The effect of drag hook 5 is to use when inserting scroll saw.

As shown in Figure 1: the top of catch 2 is provided with the section of thickening 6 before this example.The effect of the section of thickening 6 is to be convenient to cerebral dura mater separate with diaphragm-operated passivity

As shown in Figure 1: this routine pad total length is designed to 240mm.

As shown in Figure 1: groove 1 long 100mm, wide 5mm, thick 1mm, groove 1 semicircular in shape, diameter 4mm.

As shown in Figure 1: catch 2 long 80mm before this example, wide 5mm, thick 1mm, catch 2 front end 5mm part (promptly the section of thickening 6 length are 5mm) thickens to 2mm, back side maintenance level to positive (place, groove center of circle face); (be left end drag hook 5 apart from 30mm) is provided with one and draws structure to stay to insert scroll saw to use at catch 2 front end 30mm places.

As shown in Figure 1: this example back catch 3 long 60mm, wide 5mm, thick 1mm.

As shown in Figure 1: this routine handle 4; Long 50mm, wide 8mm, thick 4mm, the wide 5.2mm of internal diameter, thick 1.2mm, long 30mm.The above size range only limits to this example.

Below in conjunction with accompanying drawing, further understand the present invention through the description of work process.

As shown in Figure 2: during work,, strike off bone hole bone foam, osteocomma appears cerebral dura mater at first in venous sinus 9 both sides, bore boring near venous sinus 9 places craniums; Insert the preceding catch 2 of venous sinus craniotome 8 from a side seam hole, passivity dividing vein hole and skull gap also pass the bone hole to the side seam hole is moved; Naturally soft slip venous sinus craniotome 8 also makes fluted 2 main part be positioned at venous sinus 9 tops under the skull; Use milling cutter or scroll saw 7 to mill (saw) and open venous sinus 9 top skulls from groove 2 direction of travels; Remove handle 4, softly slide venous sinus craniotome 8 and from the back catch 3 directions take out.When using scroll saw, before inserting, need before the catch 2 earlier scroll saw 7 to be placed in to draw on the structure 5.

Claims

1. a venous sinus craniotome is characterized in that being made up of the strip pad, and the strip pad is provided with groove (1), and two ends are respectively preceding catch (2) and back catch (3).

2. venous sinus craniotome according to claim 1 is characterized in that said back catch (3) is provided with handle (4).

3. venous sinus craniotome according to claim 1 is characterized in that said preceding catch (2) is provided with drag hook (5).

4. according to claim 1 or 3 described venous sinus craniotomes, it is characterized in that the top of said preceding catch (2) is provided with the section of thickening (6).

5. venous sinus craniotome according to claim 1 is characterized in that the total length of said pad is preferably 230-250mm.

6. venous sinus craniotome according to claim 1 is characterized in that the long 95-105mm of said groove (1), wide 3.5-5mm, dark 0.8-1.2mm, groove (1) semicircular in shape.

7. venous sinus craniotome according to claim 4 is characterized in that the said preceding long 75-85mm of catch (2), wide 4.5-5.5mm, thick 0.8-1.2mm, and catch (2) front end 4.5-5.5mm part thickens 1.5-2.5mm, back side maintenance level to the front; Be provided with at catch (2) front end 28-32mm place and draw structure (5).

8. venous sinus craniotome according to claim 1 and 2 is characterized in that the long 55-65mm of said back catch (3), wide 4.5-5.5mm, thick 0.8-1.2mm;

9. venous sinus craniotome according to claim 2 is characterized in that the long 45-55mm of said handle (4), wide 7-9mm, thick 3.5-4.5mm, the wide 5-5.5mm of internal diameter, thick 1.0-1.5mm, long 28-32mm.