A kind of medical tissue crushes scissors
Technical field
The invention belongs to medical apparatus technique field, and in particular to a kind of medical tissue crushes scissors.
Background technology
Umbilical cord mesenchymal stem cells pick up from Biohazard Waste neonatal umbilical cord, can specific inductive condition in vivo or in vitro
Under, the Various Tissues cell such as fat, bone, cartilage, muscle, tendon, ligament, nerve, liver, cardiac muscle, endothelium is divided into, it is to apply valency
Value cell types higher.Umbilical cord mesenchymal stem cells are largely present in the magnificent Tong Shi glue (Wharton glue) of umbilical cord, therefore
The existing umbilical cord mesenchymal stem cells that prepare generally all are according to enzyme digestion after the logical glue tissue in Wal in umbilical cord is cut into small pieces
Or stationary culture is processed, collection umbilical cord mesenchymal stem cells are finally separating.
In previous materials treatment prepared by umbilical cord mesenchymal stem cells, the mode according to culture needs the China that umbilical cord is separate
Tong Shi glue shreds into about 1~2cm3The tissue block of size, in order to the growth control of mescenchymal stem cell in incubation, and
Carry out the check experiment of same sample difference factor.And the mode of China's Tong Shi glue tissue chopping can only be obtained using shearing etc., and
Can not directly rub, thus the mode for now preparing all be it is artificial rule of thumb carefully sheared with operating scissors under contents it is supreme
State specification.Therefore, the time consumption for cutting tissue block is more long, and is very easy to cause to be cut into tissue block not of uniform size.
Patent document CN204278048U discloses a kind of improved tissue scissors, with three scissors bits, shreds tissue
Efficiency is very high, often shears once equivalent to traditional shearing three times, simultaneously because the gap between each scissors bit is fixed, from
And it is easily obtained the shearing tissue block that size meets.
But, though multi-head scissors can lift shear efficiency, there is also unsatisfactory part:The tissue that shearing is separated
Fragment is easily adhered on each scissors bit, simultaneously because the gap between two neighboring scissors bit is smaller, causes to be clipped in adjacent two
Tissue pieces between individual scissors bit are difficult to clear up.
The content of the invention
Scissors is crushed it is an object of the invention to provide a kind of medical tissue that can solve the problem that above-mentioned technical problem.
Realizing the technical scheme of the object of the invention is:A kind of medical tissue crushes scissors, including two shear shanks and two
Scissors bit, the end of each scissors bit and a corresponding shear shank are fixedly linked, and two scissors bits are connected by a rotating shaft;It is special
Levy and be:Also include two scurf eliminating combs;Each shear shank is provided with a bearing pin and a bearing support for being used to support the bearing pin;Go
Bits comb includes comb handle, comb bar and curries;Comb handle is located at the one end of comb bar away from scissors bit, curries positioned at comb bar close to scissors bit
One end;Comb bar is provided with pilot hole transversely through comb bar, and the bearing pin is located in the pilot hole of a corresponding comb bar;Curry
Multiple pencil bristles are provided with, two neighboring pencil bristle forms a brush groove;Respectively curry to be movable to and make a corresponding scissors
The shear blade of head each enters in a corresponding brush groove;Bearing support is provided with flexible collar, and bearing support is connected to by flexible collar
On a corresponding shear shank.
In such scheme, each scissors bit includes five shear blades being arranged side by side, and five butts of shear blade pass through one
Individual pin is connected.
In such scheme, curry and be provided with six pencil bristles, form five brush grooves.
The present invention has positive effect:(1)Due to being provided with dismountable scurf eliminating comb, sticked to accordingly so as to be easy to cleaning
Chip on shear blade, and scurf eliminating comb can be pulled down from shear shank cleaning;(2)Cut due to scurf eliminating comb is movably disposed at
On handle of a knife, in shearing, scurf eliminating comb will not hinder the shearing manipulation of scissors bit, when anti-dandruff, after mobile scurf eliminating comb to predeterminated position
Completed by being rotated further by;Its operation is more convenient.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the invention;
Fig. 2 is a kind of dimensional structure diagram of the broken scissors of medical tissue shown in Fig. 1 after scurf eliminating comb is removed;
Fig. 3 is the close-up schematic view at A in Fig. 2;
Fig. 4 be scurf eliminating comb shown in Fig. 1 from another angle observe when a kind of dimensional structure diagram;
Fig. 5 is the close-up schematic view at B in Fig. 4;
Fig. 6 is a kind of broken dimensional structure diagram of the scissors in anti-dandruff operation of medical tissue shown in Fig. 1;
Fig. 7 is broken another dimensional structure diagram of the scissors in anti-dandruff operation of medical tissue shown in Fig. 1.
Mark shown in accompanying drawing:Shear shank 1, bearing pin 11, bearing support 12 presss from both sides platform 13, arc slide unit 131, clip slot 132, gold
Category matrix 14, plastic sheath 15, scissors bit 2, shear blade 21, pin 22, scurf eliminating comb 3, comb handle 31 combs bar 32, curries 33, pilot hole
34, position folder hole 341, pivoted hole 342, pencil bristle 35, brush groove 36, positioning boss 37, arc groove 371, rotating shaft 4.
Specific embodiment
(Embodiment 1)
The present embodiment is a kind of broken scissors of medical tissue, as shown in Fig. 1 to Fig. 7, including two shear shanks, 1, two scissors bits 2
With two scurf eliminating combs 3.The end of each scissors bit and a corresponding shear shank are fixedly linked.
Each scissors bit 2 includes five shear blades 21 being arranged side by side, and five butts of shear blade pass through a pin 22
It is connected;Two scissors bits are connected by a rotating shaft 4;, in shearing, shear effect is equivalent to common five for two scissors bits
Scissors, compared with the conventional scissors of simple shear blade for, can effectively lift historrhexis's efficiency.
As shown in Figure 2, each shear shank 1 is provided with a bearing pin 11 and a bearing support 12 for being used to support the bearing pin.This
In embodiment, each shear shank includes metallic matrix 14 and the plastic sheath 15 being set on metallic matrix;Bearing support is provided with elastic card
Hoop(It is not drawn on figure), bearing support is clamped on a corresponding shear shank by flexible collar, and this structure causes that bearing support can
That dismantles is arranged on shear shank.
As shown in Fig. 4 and Fig. 5, scurf eliminating comb 3 includes comb handle 31, comb bar 32 and curries 33;Comb handle is located at comb bar away from scissors
One end of head, curries positioned at comb bar close to one end of scissors bit;Comb bar is provided with pilot hole 34 transversely through comb bar, described
Bearing pin is located in the pilot hole of a corresponding comb bar;Curry and be provided with multiple for removing each shear blade in a corresponding scissors bit
The pencil bristle 35 of the chip of adhesion.A brush groove 36 is formed between two adjacent pencil bristles.In concrete practice, also may be used
Replace pencil bristle with intensive bristle.
In the present embodiment, curry and be provided with six pencil bristles 35, form five brush grooves 36;When chip need not be brushed
When, promote scurf eliminating comb to cause that bearing pin is located at pilot hole close to one end of scissors bit;When needing to brush chip, scurf eliminating comb is promoted to make
Obtain bearing pin and be located at the one end of pilot hole away from scissors bit so that scurf eliminating comb is moved towards close to the direction of scissors bit, so that
Five shear blades in a corresponding scissors bit are each located in a corresponding brush groove so that scurf eliminating comb is located at position shown in Fig. 6;
Comb handle is pressed again scurf eliminating comb is rotated centered on bearing pin so that scurf eliminating comb turns to position shown in Fig. 7, so that respectively currying profit
The chip adhered on shear blade is brushed off with pencil bristle.
In the present embodiment, each pilot hole is close to the positioning folder hole 341 that one end of scissors bit is with bearing pin interference fit, bearing pin
Size less times greater than positioning folder hole aperture, using position folder hole clamp bearing pin clamping force so that scurf eliminating comb can be positioned at
On bearing pin;Each pilot hole is the pivoted hole 342 being adapted to bearing pin away from one end of scissors bit, and the shape of pivoted hole is circular, pivot
Aperture and the bearing pin adaptation in hole are connect, bearing pin can freely be rotated in pivoted hole;When bearing pin is located in pivoted hole, pressing comb handle can
So that scurf eliminating comb is rotated by center of rotation of bearing pin.
Comb handle is that comb bar extends to be formed away from one end of scissors bit away from the direction bending of shear shank, when bearing pin is located at
When in pivoted hole, pressing comb handle can cause that comb bar rotates larger angle, namely cause pencil bristle it is complete from shear blade
Scrape to the other end one end;The outer wall of comb handle is provided with multiple fins with increasing friction force, be easy to promote scurf eliminating comb movement and by
Pressure comb handle.
As shown in Figure 5, in the present embodiment, each scurf eliminating comb is provided with positioning boss 37 close to the end face of shear shank, and this is determined
The two side ends of position boss are provided with arc groove 371.
As shown in Figure 3, the wall body of a close corresponding scurf eliminating comb of each shear shank is provided with two folder platforms 13, this two folders
An arc of a prominent arc slide unit 131, each arc slide unit and positioning boss is each provided with two relative inwalls of platform
Connected in star is adapted to;Two boss clampings form a clip slot 132;When scurf eliminating comb is moved to so that bearing pin is close positioned at pilot hole
During one end of scissors bit, the positioning boss of scurf eliminating comb is snapped in a corresponding clip slot.This structure is carried out preferably to scurf eliminating comb
Positioning, prevents scurf eliminating comb from being moved in shear history and influences shearing manipulation.
The present embodiment has advantages below:(1)Due to being provided with dismountable scurf eliminating comb, sticked to accordingly so as to be easy to cleaning
Chip on shear blade, and scurf eliminating comb can be pulled down from shear shank cleaning;(2)Cut due to scurf eliminating comb is movably disposed at
On handle of a knife, in shearing, scurf eliminating comb will not hinder the shearing manipulation of scissors bit, when anti-dandruff, after mobile scurf eliminating comb to predeterminated position
Completed by being rotated further by;Its operation is more convenient.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And these
Belong to obvious change that connotation of the invention extends out or variation still falls within protection scope of the present invention.