CN103598924B - Experimental rat nervus centralis draws drawing device - Google Patents

Experimental rat nervus centralis draws drawing device Download PDF

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Publication number
CN103598924B
CN103598924B CN201310636899.1A CN201310636899A CN103598924B CN 103598924 B CN103598924 B CN 103598924B CN 201310636899 A CN201310636899 A CN 201310636899A CN 103598924 B CN103598924 B CN 103598924B
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China
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extractor
brain
sucker
spinal cord
glued membrane
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Expired - Fee Related
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CN201310636899.1A
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Chinese (zh)
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CN103598924A (en
Inventor
邓振旭
杜东书
楚德昌
康卫国
郑继军
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Heze University
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Heze University
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Abstract

Experimental rat nervus centralis draws drawing device, belong to medical treatment and laboratory equlpment technical field, be made up of sucker glued membrane (1), extractor (46), suction tube (47), suction nozzle (6), it is characterized in that: the thin film of sucker glued membrane (1) to be thickness that silica gel is made be 0.1-1 millimeter, periphery is fixed on the inner face periphery of spinal cord extractor (7), draws in wall (9) surround spinal cord extractor chamber (8) at spinal cord; In brain extractor (37), be extended to cryptomere at brain extractor mouth (4) place, the blister cavities that sucker glued membrane (1) is formed is the sucker glued membrane chamber (5) holding fixing experimental rat brain.Experimental rat nervus centralis is drawn drawing device and is made simple, and diverse in function is workable, with low cost, successful.

Description

Experimental rat nervus centralis draws drawing device
Technical field
The present invention relates to a kind of experimental rat nervus centralis and draw drawing device, belong to medical treatment and laboratory equlpment technical field.
Background technology
Experimental rat has very important effect in the research of biology, medicine and pharmacology, agricultural, chemical industry, poultry thing veterinary etc., in correlational study, can study by application experiment rat Modling model.Experimental rat is a kind of chordate animal, and grown by the neurocele of embryonic stage and next nervus centralis front end is brain, back segment is spinal cord, and the two is connected together, and there is neurolemma outside.Brain and spinal cord are soft tissue, and quality is with commercially available soybean curd, very soft, to run into namely can sustain damage by hard object as tweezers, dissecting needle etc.In research brain and spinal cord structure process, also it intactly must be taken out, the research of science could be carried out brain and spinal cord.How brain and spinal cord are intactly extracted from cranial cavity and intraspinal tube and become current urgent need to solve the problem.So invent a kind of by the neurilemmal integrity of experimental rat and toughness utilize aspirate and the mode of adsorbing reach from the experimental rat nervus centralis absorption drawing device of cranial cavity and intraspinal tube complete extraction brain and spinal function be necessary.
Summary of the invention
In order to overcome the difficult problem that brain and spinal cord intactly can not be extracted from cranial cavity and intraspinal tube at present, the invention provides a kind of experimental rat nervus centralis and draw drawing device, this experimental rat nervus centralis draws drawing device by the neurilemmal integrity of experimental rat and toughness, the extractor of sucker glued membrane is had in utilization, at suction tube by after suction nozzle extracting gases, the brain of experimental rat is drawn in sucker glued membrane chamber by extractor, due to sucker glued membrane being provided with sucker, and then brain and spinal cord flexibility can be fixed in sucker glued membrane chamber and spinal cord extractor chamber, gently pull with have gentle hands, object brain and spinal cord intactly extracted from cranial cavity and intraspinal tube can be reached.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of experimental rat nervus centralis draws drawing device, is specially: a kind of experimental rat nervus centralis is drawn drawing device and is made up of extractor 46 and suction tube 47, and described extractor 46 comprises sucker glued membrane 1, spinal cord extractor 7 and brain extractor 37; Described sucker glued membrane 1 periphery is fixed on the inner face periphery of spinal cord extractor 7, draws in wall 9 surround spinal cord extractor chamber 8 at spinal cord; At brain extractor mouth 4, place is extended to cryptomere in brain extractor 37, the blister cavities that sucker glued membrane 1 is formed is the sucker glued membrane chamber 5 holding fixing experimental rat brain, sucker glued membrane 1 is made up of sucker glued membrane body 10 and sucker 11, sucker 11 is evenly arranged on sucker glued membrane body 10, adjacent two suckers 11 are at a distance of 2-10 millimeter, and each sucker 11 comprises sucker 12 and sucker chamber 13 two parts; Described spinal cord extractor 7 diameter is the semi-circular cylindrical of 1-2 centimetre, comprises sucker glued membrane 1, spinal cord draws wall 9 and spinal cord extractor chamber 8, before and after brain extractor mouth 4, respectively have one section, and sucker glued membrane 1 anchors at the periphery that spinal cord draws wall 9; Described described brain extractor 37 comprises brain and draws wall 2, brain extractor chamber 3, brain extractor mouth 4 and suction nozzle 6 four part; Brain is drawn the spinal cord all connecting one section of semi-circular cylindrical before and after wall 2 and is drawn wall 9, draws on wall 2 be provided with suction nozzle 6 with the brain stretching to the radius of back upper place crossing axis angle at 45 ° before and after the centre of sphere; Brain extractor chamber 3 is cavitys that brain absorption wall 2 surrounds, and brain extractor mouth 4 diameter is 2-2.5 centimetre, and mouth periphery is level and smooth, is the opening of brain extractor 37 bottom, is also the opening of experimental rat brain turnover brain extractor 37; Described suction nozzle 6 heads a ball 30 by suction nozzle, suction nozzle heads a ball neck 31, suction nozzle heads a ball bar 32, set chock plug 33, suction nozzle wall 34, set plug bore 35, suction nozzle is headed a ball at the bottom of pole spacing sheet 36, brain extractor 37, solid leather sheath head 38, suction nozzle bottom outlet 39, leather sheath 40, leather sheath chamber 41, suction nozzle 42, suction nozzle chamber 43, set consent 44, set cock body 45 form, and suction nozzle 6 is devices that suction tube 47 controls pressure in extractor 46 when aspirating; Described suction tube 47 by handle 14, handle chamber 15, handle 16, handle rod 17, handle rod aperture 18, at hand 19, revolve silk 20, return spring 21, suction tube wall 22, raw power leather cup 23, leather cup glue support 24, handle rod embedding 25, suction tube chamber 26, suction tube head 27, solid suction nozzle overlap 28, admittedly suction nozzle mantle cavity 29 form, it is characterized in that: the thin film of sucker glued membrane 1 to be thickness that silica gel is made be 0.1-1 millimeter, periphery is fixed on the inner face periphery of spinal cord extractor 7, draws in wall 9 surround spinal cord extractor chamber 8 at spinal cord; At brain extractor mouth 4, place is extended to cryptomere in brain extractor 37, and the blister cavities that sucker glued membrane 1 is formed is the sucker glued membrane chamber 5 holding fixing experimental rat brain.
Described sucker glued membrane 1 is made up of sucker glued membrane body 10 and sucker 11, and sucker glued membrane body 10 is that the thickness that silica gel is made is 0.1-1 millimeter and uniform thin film; Sucker 11 is diameters is 1-5 millimeter, the circular recess that the thick central authorities of periphery are thin, is evenly arranged on sucker glued membrane body 10, and adjacent two suckers 11 are at a distance of 2-10 millimeter, and each sucker 11 comprises sucker 12 and sucker chamber 13 two parts; Sucker 12 is pellosils, and the thickness of periphery is 0.1-1 millimeter, and the thickness of central authorities is 0.05-0.3 millimeter; 13, sucker chamber is circular recess, and the degree of depth is 0.025-1 millimeter.
Described spinal cord extractor 7 diameter is the semi-circular cylindrical of 1-2 centimetre, comprise sucker glued membrane 1, spinal cord draws wall 9 and spinal cord extractor chamber 8, one section is respectively had before and after brain extractor mouth 4, the length of one section is 3-5 centimetre above, the length of one section next is 0.5-1 centimetre, spinal cord is drawn wall 9 and is made up of plastics, rustless steel or aluminium alloy, and thickness is 1-3 millimeter, and sucker glued membrane 1 anchors at the periphery that spinal cord draws wall 9.
Described brain extractor 37 is spherical cryptomeres of lower openings, and the radius of ball is 2-5 centimetre, comprises brain and draws wall 2, brain extractor chamber 3, brain extractor mouth 4 and suction nozzle 6 four part; Brain is drawn wall 2 and is made up of plastics, rustless steel or aluminium alloy, thickness is 1-3 millimeter, the spinal cord that front and back all connect one section of semi-circular cylindrical draws wall 9, draws on wall 2 be provided with suction nozzle 6 with the brain stretching to the radius of back upper place crossing axis angle at 45 ° before and after the centre of sphere; Brain extractor chamber 3 is cavitys that brain absorption wall 2 surrounds, and brain extractor mouth 4 diameter is 2-2.5 centimetre, and mouth periphery is level and smooth, is the opening of brain extractor 37 bottom, is also the opening of experimental rat brain turnover brain extractor 37.
Beneficial effect of the present invention is, experimental rat nervus centralis draws drawing device by the neurilemmal integrity of experimental rat and toughness, the extractor of sucker glued membrane is had in utilization, at suction tube by after suction nozzle extracting gases, the brain of experimental rat is drawn in sucker glued membrane chamber by extractor, due to sucker glued membrane being provided with sucker, and then brain and spinal cord flexibility can be fixed in sucker glued membrane chamber and spinal cord extractor chamber, gently pull with have gentle hands, object brain and spinal cord intactly extracted from cranial cavity and intraspinal tube can be reached.Experimental rat nervus centralis is drawn drawing device and is made simple, and diverse in function is workable, with low cost, successful.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the extractor structural representation that experimental rat nervus centralis of the present invention draws drawing device.
Fig. 2 is the sucker film structure schematic diagram that experimental rat nervus centralis of the present invention draws drawing device.
Fig. 3 is the sucker structure schematic diagram that experimental rat nervus centralis of the present invention draws drawing device.
Fig. 4 is the suction tube structural representation that experimental rat nervus centralis of the present invention draws drawing device.
Fig. 5 is the suction nozzle vertical section structure schematic diagram that experimental rat nervus centralis of the present invention draws drawing device.
Fig. 6 is the sucker structure schematic diagram that experimental rat nervus centralis of the present invention draws drawing device.
1. sucker glued membranes in figure, 2. brain draws wall, 3. brain extractor chamber, 4. brain extractor mouth, 5. sucker glued membrane chamber, 6. suction nozzle, 7. spinal cord extractor, 8. spinal cord extractor chamber, 9. spinal cord draws wall, 10. sucker glued membrane body, 11. suckers, 12. suckers, 13. sucker chambeies, 14. handles, 15. handle chambeies, 16. handles, 17. handle rods, 18. handle rod aperture, 19. at hand, 20. revolve silk, 21. return springs, 22. suction tube walls, 23. raw power leather cups, 24. leather cup glue supports, the embedding head of 25. handle rod, 26. suction tube chambeies, 27. suction tube heads, 28. solid suction nozzle covers, 29. solid suction nozzle mantle cavities, 30. suction nozzle headings, 31. suction nozzle heading necks, 32. suction nozzle heading bars, 33. set chock plugs, 34. suction nozzle walls, 35. set plug cones, 36. suction nozzle heading pole spacing sheets, 37. brain extractors, 38. solid leather sheath heads, 39. suction nozzle bottom outlets, 40. leather sheaths, 41. leather sheath chambeies, at the bottom of 42. suction nozzles, 43. suction nozzle chambeies, 44. set consents, 45. set cock bodys, 46. extractors, 47. suction tubes.
Detailed description of the invention
Embodiment one:
As shown in the figure, experimental rat nervus centralis of the present invention is drawn drawing device and is specially: by sucker glued membrane 1, brain draws wall 2, brain extractor chamber 3, brain extractor mouth 4, sucker glued membrane chamber 5, suction nozzle 6, spinal cord extractor 7, spinal cord extractor chamber 8, spinal cord draws wall 9, sucker glued membrane body 10, sucker 11, sucker 12, sucker chamber 13, handle 14, handle chamber 15, handle 16, handle rod 17, handle rod aperture 18, at hand 19, revolve silk 20, return spring 21, suction tube wall 22, raw power leather cup 23, leather cup glue support 24, handle rod embedding 25, suction tube chamber 26, suction tube head 27, Gu suction nozzle cover 28, Gu suction nozzle mantle cavity 29, suction nozzle heading 30, suction nozzle heading neck 31, suction nozzle heading bar 32, set chock plug 33, suction nozzle wall 34, set plug cone 35, suction nozzle heading pole spacing sheet 36, brain extractor 37, Gu leather sheath head 38, suction nozzle bottom outlet 39, leather sheath 40, leather sheath chamber 41, at the bottom of suction nozzle 42, suction nozzle chamber 43, set consent 44, set cock body 45, extractor 46, suction tube 47 forms.The thin film of sucker glued membrane 1 to be thickness that silica gel is made be 0.1-1 millimeter, periphery is fixed on the inner face periphery of spinal cord extractor 7, draws in wall 9 surround spinal cord extractor chamber 8 at spinal cord; At brain extractor mouth 4, place is extended to cryptomere in brain extractor 37, and the blister cavities formed is sucker glued membrane chamber 5, and this chamber is the space holding fixing experimental rat brain.When passing through suction nozzle 6 extracting gases with suction tube 47, sucker glued membrane 1 is drawn brain extractor chamber 3 volume that wall 2 formed and is diminished gradually in brain extractor 37 with brain, the volume in sucker glued membrane chamber 5 becomes large gradually, thus is drawn in sucker glued membrane chamber 5 by the brain of experimental rat.Sucker glued membrane 1 is made up of sucker glued membrane body 10 and sucker 11, and sucker glued membrane body 10 is that the thickness that silica gel is made is 0.1-1 millimeter and uniform thin film; Sucker 11 is diameters is 1-5 millimeter, the circular recess that the thick central authorities of periphery are thin, is evenly arranged on sucker glued membrane body 10, and adjacent two suckers 11 are at a distance of 2-10 millimeter, and each sucker 11 comprises sucker 12 and sucker chamber 13 two parts; Sucker 12 is pellosils, and the thickness of periphery is 0.1-1 millimeter, and the thickness of central authorities is 0.05-0.3 millimeter; 13, sucker chamber is circular recess, and the degree of depth is 0.025-1 millimeter, and when suction tube 47 is by suction nozzle 6 extracting gases, its degree of depth can also increase, and is the fixation point strengthening adhesive force when drawing pull.Spinal cord extractor 7 diameter is the semi-circular cylindrical of 1-2 centimetre, comprise sucker glued membrane 1, spinal cord draws wall 9 and spinal cord extractor chamber 8, one section is respectively had before and after brain extractor mouth 4, the length of one section is 3-5 centimetre above, the length of one section next is 0.5-1 centimetre, so that sucker glued membrane 1 anchors at the periphery that spinal cord draws wall 9.Spinal cord is drawn wall 9 and is made up of plastics, rustless steel or aluminium alloy, and thickness is 1-3 millimeter.Brain extractor 37 is spherical cryptomeres of lower openings, and the radius of ball is 2-5 centimetre, comprises brain and draws wall 2, brain extractor chamber 3, brain extractor mouth 4 and suction nozzle 6 four part.Brain is drawn wall 2 and is made up of plastics, rustless steel or aluminium alloy, thickness is 1-3 millimeter, the spinal cord that front and back all connect one section of semi-circular cylindrical draws wall 9, draws on wall 2 be provided with suction nozzle 6 with the brain stretching to the radius of back upper place crossing axis angle at 45 ° before and after the centre of sphere.Brain extractor chamber 3 is cavitys that brain absorption wall 2 surrounds, after suction nozzle 6 aspirates, the pressure that its spinal cord that is interior and that be communicated with it is drawn between wall 9 and sucker glued membrane 1 in lacuna can reduce, thus form a subnormal ambient, make experimental rat brain and spinal cord by adsorbed close on sucker glued membrane 1, pull gently, can by the brain of experimental rat and spinal cord intactly by pull out.Brain extractor mouth 4 is openings of brain extractor 37 bottom, and diameter is 2-2.5 centimetre, and mouth periphery is level and smooth, is the opening of experimental rat brain turnover brain extractor 37.Suction nozzle 6 is made up of plastics, rustless steel or aluminium alloy, head a ball 30 by suction nozzle, suction nozzle heads a ball neck 31, suction nozzle heads a ball bar 32, set chock plug 33, suction nozzle wall 34, set plug bore 35, suction nozzle is headed a ball at the bottom of pole spacing sheet 36, solid leather sheath head 38, suction nozzle bottom outlet 39, leather sheath 40, leather sheath chamber 41, suction nozzle 42, suction nozzle chamber 43, set consent 44 and set cock body 45 form, the bead of suction nozzle heading 30 to be diameters be 3-5 millimeter, its effect facilitates suction nozzle to insert solid suction nozzle mantle cavity 29.Suction nozzle heading neck 31 is cylindrical, and diameter is 1-2 millimeter, and length is 1 millimeter, is the part connecting suction nozzle heading 30 and suction nozzle heading bar 32, can increase when suction tube 47 aspirates by the gas inhaled the suction of suction nozzle heading 30 simultaneously.Suction nozzle heading bar 32 is cylindrical, and diameter is 2-4 millimeter, and length is 1-1.5 centimetre, is the connecting rod that suction nozzle 6 controls gas discrepancy.Suction nozzle heading pole spacing sheet 36 is cylindrical catch of suction nozzle heading bar 32 end, and length is 1-2 millimeter, and diameter is 3-8 millimeter, can stop that suction nozzle heading bar 32 is deviate from from set consent 44.Gu leather sheath head 38 spheroidal, diameter is 1-5 millimeter, base portion by a diameter be 0.5-2 millimeter, length is that the cylinder of 1 millimeter is connected to suction nozzle heading pole spacing sheet 36 central authorities.Leather sheath 40 base length is the cylindrical shape of 3-8 millimeter, end is highly the coniform of 2-5 millimeter, cylinder and circular cone external diameter are 3-8 millimeter, the leather sheath chamber 41 that diameter is 0.5-2 millimeter, length is 0.5-3 millimeter is had, so that the cone shape end of leather sheath 40 is pressed on the suction nozzle bottom outlet 39 that diameter is 2-4 millimeter after bleeding in leather sheath 40.Set chock plug 33 is cylindrical, and outside diameter is 5-10 millimeter, and length is 1 millimeter; Set cock body 45 is cylindrical, and outside diameter is 4-8 millimeter, and length is 8-10 millimeter; Set cock body 45 lower surface is evenly distributed 8 set plug cones 35, and 35 end circular diameters bored by each set plug is 0.25 millimeter, is highly 0.5 millimeter; Set chock plug 33 and set cock body 45 central authorities have diameter to be the set consent 44 of 3-5 millimeter, and when bleeding, it be in the suction nozzle chamber 43 of 4-8 millimeter that gas can enter diameter by the gap formed between set consent 44 and adjacent set plug cone 35.Suction nozzle wall 34 is the walls around suction nozzle chamber 43, and suction nozzle chamber 43 has thickness to be at the bottom of the suction nozzle of 1 millimeter 42, and 42 central authorities at the bottom of suction nozzle have diameter to be the suction nozzle bottom outlet 39 of 2-4 millimeter.Directly set cock body 45 is filled in suction nozzle chamber 43 during installation.Suction tube 47 structure and principle are with known pump bowl, by handle 14, handle chamber 15, handle 16, handle rod 17, handle rod aperture 18, at hand 19, revolve silk 20, return spring 21, suction tube wall 22, raw power leather cup 23, leather cup glue support 24, handle rod embedding 25, suction tube chamber 26, suction tube head 27, Gu suction nozzle cover 28, Gu suction nozzle mantle cavity 29 forms, when bleeding, hold handle 14, handle 16 is fastened with forefinger and middle finger, the raw power leather cup 23 of pull back and forth, and then the gas in extractor 46 is extracted out, suction tube 47 can be pulled up from suction nozzle 6 afterwards, then extractor 46 is operated.Suction nozzle 6 is devices that suction tube 47 controls pressure in extractor 46 when aspirating, when bleeding, gas in extractor 46 can be allowed to enter the suction tube chamber 26 of suction tube 47, negative pressure is produced in extractor 46, thus the brain of experimental rat is drawn in sucker glued membrane chamber 5, when the brain of experimental rat is fixed by sucker 11 in spinal cord extractor chamber 8 in sucker glued membrane chamber 5 and spinal cord, pull out suction tube 47, suction nozzle bottom outlet 39 is blocked by leather sheath 40, and outwards pulling with hands can by the brain of experimental rat and spinal cord pull out.Afterwards, pull the connecting rod of suction nozzle heading 30, suction nozzle heading neck 31, suction nozzle heading bar 32, suction nozzle heading pole spacing sheet 36, admittedly leather sheath head 38, leather sheath 40 and leather sheath chamber 41 composition, leather sheath 40 can be made to depart from from suction nozzle bottom outlet 39 come, and then allow extraneous air enter in brain extractor chamber 3 by the space between set consent 44, set plug cone 35, suction nozzle chamber 43, suction nozzle bottom outlet 39, the negative pressure produced during beginning is disappeared, thus by gravity, the brain of experimental rat and spinal cord is discharged experimental rat nervus centralis absorption drawing device.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should be appreciated that; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by its equivalent of appending claims.

Claims (4)

1. an experimental rat nervus centralis draws drawing device, it is characterized in that: described absorption drawing device is made up of extractor (46) and suction tube (47), described extractor (46) comprises sucker glued membrane (1), spinal cord extractor (7) and brain extractor (37), described spinal cord extractor (7) diameter is the semi-circular cylindrical of 1-2 centimetre, comprise spinal cord and draw wall (9) and spinal cord extractor chamber (8), before and after brain extractor mouth (4), respectively have one section, described brain extractor (37) comprises brain and draws wall (2), brain extractor chamber (3), brain extractor mouth (4) and suction nozzle (6) four part, described brain is drawn the spinal cord all connecting one section of semi-circular cylindrical before and after wall (2) and is drawn wall (9), draw on wall (2) with the brain stretching to the radius of back upper place crossing axis angle at 45 ° before and after the centre of sphere and be provided with suction nozzle (6), described brain extractor chamber (3) is the cavity that brain absorption wall (2) surrounds, brain extractor mouth (4) diameter is 2-2.5 centimetre, mouth periphery is level and smooth, it is the opening of brain extractor (37) bottom, also be the opening of experimental rat brain turnover brain extractor (37), the thin film of described sucker glued membrane (1) to be thickness that silica gel is made be 0.1-1 millimeter, periphery is fixed on the inner face periphery of spinal cord extractor (7), draw in wall (9) at spinal cord and surround spinal cord extractor chamber (8), and in brain extractor (37), be extended to cryptomere at brain extractor mouth (4) place, form blister cavities, described blister cavities is the sucker glued membrane chamber (5) holding fixing experimental rat brain, described sucker glued membrane (1) is made up of sucker glued membrane body (10) and sucker (11), sucker (11) is evenly arranged on sucker glued membrane body (10), adjacent two suckers (11) are at a distance of 2-10 millimeter, each sucker (11) comprises sucker (12) and sucker chamber (13) two parts, described suction nozzle (6) controls the device of extractor (46) interior pressure when being suction tube (47) suction.
2. experimental rat nervus centralis according to claim 1 draws drawing device, it is characterized in that: described sucker glued membrane body (10) is that the thickness that silica gel is made is 0.1-1 millimeter and uniform thin film, described sucker (11) is diameter is 1-5 millimeter, the circular recess that the thick central authorities of periphery are thin, be evenly arranged on sucker glued membrane body (10), described sucker (12) is pellosil, the thickness of periphery is 0.1-1 millimeter, the thickness of central authorities is 0.05-0.3 millimeter, described sucker chamber (13) is then circular recess, the degree of depth is 0.025-1 millimeter.
3. experimental rat nervus centralis according to claim 1 draws drawing device, it is characterized in that: described spinal cord extractor (7) respectively has one section before and after brain extractor mouth (4), the length of one section is 3-5 centimetre above, the length of one section next is 0.5-1 centimetre, spinal cord is drawn wall (9) and is made up of plastics, rustless steel or aluminium alloy, and thickness is 1-3 millimeter.
4. experimental rat nervus centralis according to claim 1 draws drawing device, it is characterized in that: described brain extractor (37) is the spherical cryptomere of lower openings, the radius of ball is 2-5 centimetre, described brain is drawn wall (2) and is made up of plastics, rustless steel or aluminium alloy, and thickness is 1-3 millimeter.
CN201310636899.1A 2013-12-03 2013-12-03 Experimental rat nervus centralis draws drawing device Expired - Fee Related CN103598924B (en)

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BRMU8701897U2 (en) * 2007-11-01 2009-06-23 Wollaston Ney Graca Vianna cerebral suction kit with disposable brain collector
FR2963252A1 (en) * 2010-08-02 2012-02-03 Biomerieux Sa TIP FOR PIPETTING DEVICE COMPRISING A PART SUITABLE TO PROTECT THIS DEVICE
CN102038560A (en) * 2010-12-28 2011-05-04 浙江省医学科学院 Construction method of operation model for collecting cerebrospinal fluid repeatedly
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