CN201564633U - Brain stereotaxic apparatus sample feeding device - Google Patents
Brain stereotaxic apparatus sample feeding device Download PDFInfo
- Publication number
- CN201564633U CN201564633U CN 200920165044 CN200920165044U CN201564633U CN 201564633 U CN201564633 U CN 201564633U CN 200920165044 CN200920165044 CN 200920165044 CN 200920165044 U CN200920165044 U CN 200920165044U CN 201564633 U CN201564633 U CN 201564633U
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- screw thread
- fixed
- boosting bar
- microsyringe
- thread boosting
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Abstract
The utility model discloses a brain stereotaxic apparatus sample feeding device which is composed of a support stand, an operating arm installed on the support stand, a microinjector and a fixed supporting frame for fixing the microinjector, wherein the upper end of the fixed supporting frame is fixed on the front edge of the operating arm, the lower end is fixed with the microinjector, the middle portion of the fixed supporting frame is fixed with a connecting block, a screw through hole is arranged on the connecting block, a screw thread boosting bar with a hollow bottom is meshed in the screw through hole, the screw thread boosting bar is vertical to the horizontal surface, and a pushing bar of the microinjector extends into a hollow cavity at the bottom of the screw thread boosting bar and is fixed with the hollow cavity at the bottom of the screw thread boosting bar. The brain stereotaxic apparatus sample feeding device has simple structure and can realize control of trace amount feeding quantity and sampling quantity of liquid.
Description
Technical field
This utility model relates to a kind of scientific experiments instrument, particularly a kind of brain solid positioner sampling device.
Background technology
Scientific experiments is an important research equipment in the fields such as neuro anatomy, nervous physiology, neuropharmacology and neurosurgery with the animal brain stereotaxic instrument, be used to finish operations such as directed injection, stimulation, destruction, guiding current potential are carried out in neuromechanism, can be used for researchs such as the parkinson animal model is set up, animal epileptic model is set up, the interior tumor model foundation of brain, learning and memory, the interior neural stem cells transplantation of brain, cerebral ischemia.As notification number is the disclosed a kind of brain solid positioner of utility model patent of CN2917582Y, its sampling device mainly by bearing and be installed in motion arm on the bearing, microsyringe and fixedly the fixed support of microsyringe constitute.Support bracket fastened upper end is fixed on the leading edge of motion arm, and its lower end then is provided with an installing hole, and the syringe of microsyringe stretches in this installing hole and fixes.In the experimentation, the experimenter directly promotes the push rod of microsyringe with in the slow micro-injection experiments animal body of liquid.Because once the liquid consumption of required injection is generally all fewer, adopt the artificial directly form of boosting, be difficult to control the boosting amount, this just causes the application of sample error easily, and influences experimental result.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, and can realize the micro-amounts of liquids input and extract the brain solid positioner sampling device of control.
For achieving the above object, a kind of brain solid positioner sampling device that this utility model is designed, bearing and be installed in motion arm on the bearing, microsyringe and fixedly the fixed support of microsyringe constitute; Support bracket fastened upper end is fixed on the leading edge of motion arm, and its lower end is fixed with microsyringe; The middle part of said fixing support is fixed with a contiguous block, offer a tapped through hole on the contiguous block, be engaged with the screw thread boosting bar of a lower hollow in this tapped through hole, screw thread boosting bar is perpendicular to horizontal plane, and the push rod of microsyringe stretches into and is fixed in the hollow cavity of screw thread boosting bar bottom.
In the such scheme, the push rod of microsyringe can directly fixedly be embedded in the hollow cavity of screw thread boosting bar bottom, preferably is fixed in the hollow cavity of screw thread boosting bar bottom by running through the screw rod that is engaged on the sidewall of screw thread boosting bar bottom.This moment, the push rod upper end of microsyringe can be blocked by screw rod, screw thread boosting bar forward rotates and can drive push rod and move downward, counter-rotating just can drive push rod and move upward, and can inject liquid or extract examination of cerebrospinal fluid to laboratory animal according to the experiment needs like this.
For reaching the purpose of slow micro-injection, the pitch of the described screw thread boosting of such scheme bar preferably is controlled between the 0.5-1mm.
The top of the described screw thread boosting of such scheme bar is provided with the precession sign, and the experimenter just can get information about the propelling and the extraction degree of screw thread boosting bar like this, thereby extrapolates the reservoir quantity of microsyringe.
This utility model compared with prior art, the push rod that drives microsyringe by screw thread boosting bar move downward or upward realize microsyringe slowly and the propelling of trace and extract control, not only simple in structure, with low cost, be easy to control, and the precision that advances and extract and extract is higher, propelling and extraction amount are also more stable, can be widely used in and under general condition toy be carried out researchs such as directed stimulation, destruction, injectable drug, guiding current potential.
Description of drawings
Fig. 1 is the structural representation of this utility model preferred embodiment.
Number in the figure is: 1, bearing; 2, motion arm; 3, fixed support; 4, microsyringe; 5, fixture block; 6, contiguous block; 7, screw thread boosting bar; 8, screw rod; 9, precession sign.
The specific embodiment
Fig. 1 is a kind of brain solid positioner sampling device of this utility model, its mainly by bearing 1 and be installed in motion arm 2 on the bearing 1, microsyringe 4 and fixedly the fixed support 3 of microsyringe 4 constitute.Described motion arm 2 comprise X to, Y to, Z to three parts, whenever constitute to the motion bar of motion arm 2 by guide rail and band regulating handle, X is respectively equipped with the vernier seat that can move along guide rail to, Y on motion arm 2 to, Z.X is installed in Z on the vernier seat of motion arm 2 to motion arm 2, can handle the X that is fixedly mounted on the vernier seat by the regulating handle motion bar and move to motion arm 2 guide rails along Z to motion arm 2.X is fixedly installed on the vernier seat back side of Z to motion arm 2 to the vernier seat of motion arm 2.The fixed support 3 of microsyringe 4 is fixed on the guide rail end of X to motion arm 2, can impel X to move axially to the guide rail of motion arm 2 by the adjusting rod of being with handle.Z is installed in the guide rail end of Y motion arm 2 by vertical rotating shaft and feathering axis to motion arm 2.Y motion arm 2 is fixed on the bearing 1 by the vernier seat, can handle Z by band handle adjusting rod and move axially at the qualification lower edge of vernier seat guide rail to motion arm 2.Rely on said structure, be installed on the bearing 1 X to, Y to, Z to motion arm 2 can divide X to, Y to, Z to direction and 360 ° of rotating shafts of level and vertical 180 ° of rotations.
Microsyringe 4 is fixed on the lower end of fixed support 3 by a U-shaped fixture block 5.In this utility model preferred embodiment, described fixture block 5 adopts the soft plastic material to make, the opposing end surface of its U-shaped opening is provided with the part of tightening that matches, and the syringe of microsyringe 4 inserts in the U-shaped opening from top to bottom, and is fixed on the fixture block 5 by tightening part.The middle part of fixed support 3 is fixed with a contiguous block 6, offer a tapped through hole on the contiguous block 6, be engaged with the screw thread boosting bar 7 of a lower hollow in this tapped through hole, screw thread boosting bar 7 is perpendicular to horizontal plane, and the push rod of microsyringe 4 stretches into and is fixed in the hollow cavity of screw thread boosting bar 7 bottoms.The push rod of microsyringe 4 can directly fixedly be embedded in the hollow cavity of screw thread boosting bar 7 bottoms, in this utility model preferred embodiment, the push rod of microsyringe 4 is to be fixed in the hollow cavity of screw thread boosting bar 7 bottoms by running through the screw rod 8 that is engaged on the screw thread boosting bar 7 bottom sidewalls.During installation, at first the screw rod 8 on screw thread boosting bar 7 sidewalls is turned on, and the push rod of microsyringe 4 is inserted in the cavity of screw thread boosting bar 7 bottoms, the top of microsyringe 4 and the upper end of cavity offset, at last screw thread is being tightened, this moment, screw thread was locked at the push rod of microsyringe 4 in screw thread boosting bar 7 bottom cavity.Because the syringe of microsyringe 4 is fixed on the lower end of fixed support 3, its push rod then links with screw thread boosting bar 7, like this when we are regulating screw thread boosting bar 7 and are moving up or down, propelling and the extraction amount that just can regulate microsyringe 4 push rods accordingly.This shows that the pitch of screw thread boosting bar 7 is determining the propelling and the extraction precision of microsyringe 4, pitch is more little, and precision is high more, and the amount of liquid that screw thread boosting bar 7 every stepping one lattice are injected is also just few more.Therefore for reaching the purpose of slow micro-injection, the pitch of screw thread boosting bar 7 described in the utility model preferably is controlled between the 0.5mm-1.0mm.And in this utility model preferred embodiment, the pitch of described screw thread boosting bar 7 is 1.0mm.In addition, the top of this utility model screw thread boosting bar 7 be provided with precession identify 9 experimenters just can get information about screw thread boosting bar 7 propelling and extraction degree, thereby extrapolate the reservoir quantity of microsyringe 4.
Claims (4)
1. brain solid positioner sampling device, bearing (1) and be installed in motion arm (2) on the bearing (1), microsyringe (4) and fixedly the fixed support (3) of microsyringe (4) constitute; The upper end of fixed support (3) is fixed on the leading edge of motion arm (2), its lower end is fixed with microsyringe (4), it is characterized in that: the middle part of described fixed support (3) is fixed with a contiguous block (6), contiguous block offers a tapped through hole on (6), be engaged with the screw thread boosting bar (7) of a lower hollow in this tapped through hole, screw thread boosting bar (7) is perpendicular to horizontal plane, and the push rod of microsyringe (4) stretches into and is fixed in the hollow cavity of screw thread boosting bar (7) bottom.
2. brain solid positioner sampling device according to claim 1 is characterized in that: the push rod of described microsyringe (4) is fixed in the hollow cavity of screw thread boosting bar (7) bottom by running through the screw rod (8) that is engaged on the sidewall of screw thread boosting bar (7) bottom.
3. brain solid positioner sampling device according to claim 1 and 2 is characterized in that: the pitch of described screw thread boosting bar (7) is between 0.5mm-1.0mm.
4. brain solid positioner sampling device according to claim 1 and 2 is characterized in that: the top of described screw thread boosting bar (7) is provided with precession sign (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920165044 CN201564633U (en) | 2009-12-30 | 2009-12-30 | Brain stereotaxic apparatus sample feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920165044 CN201564633U (en) | 2009-12-30 | 2009-12-30 | Brain stereotaxic apparatus sample feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201564633U true CN201564633U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920165044 Expired - Fee Related CN201564633U (en) | 2009-12-30 | 2009-12-30 | Brain stereotaxic apparatus sample feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201564633U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919614A (en) * | 2012-06-04 | 2014-07-16 | 南通大学 | All-angle compensation corrector for stereo positioning instrument |
| CN104913802A (en) * | 2015-06-17 | 2015-09-16 | 核工业理化工程研究院 | Test-used marker |
| CN109730800A (en) * | 2019-03-15 | 2019-05-10 | 河南医学高等专科学校 | Micro slow positioning injection device is used in a kind of experiment of rat brain |
-
2009
- 2009-12-30 CN CN 200920165044 patent/CN201564633U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919614A (en) * | 2012-06-04 | 2014-07-16 | 南通大学 | All-angle compensation corrector for stereo positioning instrument |
| CN103919614B (en) * | 2012-06-04 | 2016-02-10 | 南通大学 | The stereotaxic instrument corrector that full angle compensates |
| CN104913802A (en) * | 2015-06-17 | 2015-09-16 | 核工业理化工程研究院 | Test-used marker |
| CN104913802B (en) * | 2015-06-17 | 2017-06-13 | 核工业理化工程研究院 | Experiment marking device |
| CN109730800A (en) * | 2019-03-15 | 2019-05-10 | 河南医学高等专科学校 | Micro slow positioning injection device is used in a kind of experiment of rat brain |
| CN109730800B (en) * | 2019-03-15 | 2021-02-23 | 河南医学高等专科学校 | Slow injection device that fixes a position of trace for rat brain experiments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20101230 |