CN102845327A - Device for dissecting macro-zooplankton - Google Patents
Device for dissecting macro-zooplankton Download PDFInfo
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- CN102845327A CN102845327A CN 201210354902 CN201210354902A CN102845327A CN 102845327 A CN102845327 A CN 102845327A CN 201210354902 CN201210354902 CN 201210354902 CN 201210354902 A CN201210354902 A CN 201210354902A CN 102845327 A CN102845327 A CN 102845327A
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Abstract
A device for dissecting macro-zooplankton relates to devices for anatomizing zooplankton, and aims to solve the problems that it is inconvenient to operate and control, it is hard to keep an exposed needle body in a safe way, a needle point of the exposed needle body is easy to damage, safety is low and it is inconvenient to carry when a thin dissecting needle is used for dissecting macro-zooplankton. A jacket is fitted over a grip holder, a needle point cap is fitted over the jacket, a first spring is fitted over the grip holder and located in a second shoulder hole of the needle point cap, the upper end of the grip holder is in threaded connection with a threaded shoulder hole of a needle cylinder, a second spring and a steel ball are arranged in each blind hole of the needle cylinder, a sleeve is fitted over the needle cylinder and the needle point cap, the steel balls are arranged in spherical ring grooves at corresponding positions, and the sleeve and the large-diameter cylinder abut two steel balls in any one of the three spherical ring grooves via compression of the second springs. The inventive device is convenient to control, easy to keep and replace the dissecting needle, easy to carry, and used for dissecting macro-zooplankton.
Description
Technical field
The present invention relates to a kind of device of dissecting zooplankton.
Background technology
Macrozooplankton (copepoda, cladocera) is the good bait of various juvenile fish and filter-feeding fish, is the aquatic ecosystem important component part simultaneously.Research to macrozooplankton will be carried out Identification of Species, need to dissect it, separates the structures such as feeler, postabdomen and identifies.Because macrozooplankton length is generally 1-3mm, for not destroying structure, need to dissect with thin dissecting needle.Dissecting needle is short, thin, soft single needle, and it is painstaking to be difficult for, and it is very inconvenient to operate, control; Because needle body is exposed, experiment finishes also to be difficult for keeping, needle point rapid wear; Safety is low, not Portable belt.
Summary of the invention
The purpose of this invention is to provide a kind of device of dissecting macrozooplankton, macrozooplankton is dissected with thin dissecting needle to solve to have now, because of dissecting needle short, thin, soft, it is painstaking to be difficult for, operation, control is very inconvenient and because needle body is exposed, experiment finishes to be difficult for keeping, needle point rapid wear; Safety is low, not the problem of Portable belt.
The present invention addresses the above problem the technical scheme of taking to be:
A kind of device of dissecting macrozooplankton of the present invention, described device comprise chuck, chuck, needle point cap, the first spring, syringe, overcoat, two steel balls and two the second springs; The center, lower end of needle point cap is provided with the first shoulder hole that communicates from the bottom to top, connecting hole and the second shoulder hole, the aperture of connecting hole is less than the aperture in the first shoulder hole, the aperture in the first shoulder hole is less than the aperture in the second shoulder hole, the upper shoulder end face in the first shoulder hole is processed a cannelure, the first shoulder hole, connecting hole, the second shoulder hole and the coaxial setting of cannelure, chuck is by annular boss, the second cylinder and catch form, annular boss is arranged on the second cylindrical upper surface, catch is packed on the second cylindrical lateral wall and near the second cylindrical lower end and arranges, annular boss, the coaxial setting of the second cylinder and catch and be made as one, the external diameter of annular boss is less than the second cylindrical external diameter, the second cylindrical lower end is processed with truncated cone-shaped hole and the cylindrical hole that communicates from the bottom to top successively, the aperture of cylindrical hole equates with the small end aperture in truncated cone-shaped hole, chuck is sleeved on the chuck and the two is slidingly connected, the lower end of chuck is arranged on the outside of chuck, chuck is sleeved in the first shoulder hole of needle point cap, the annular boss of chuck is arranged in the cannelure of needle point cap, the lower end of needle point cap is by the catch axial limiting on the chuck, the connecting hole that the needle point cap is passed in the upper end of chuck is arranged in the second shoulder hole, the upper end of chuck lateral wall is provided with external screw thread, the center of syringe upper surface is provided with the minute hand hole that communicates from top to bottom, transitional pore and screw thread shoulder hole, the first spring housing is contained on the chuck and is positioned at the second shoulder hole of needle point cap, the upper end of chuck is threaded with the screw thread shoulder hole of syringe, chuck is used for the clamping dissecting needle, syringe from top to bottom is comprised of all-in-one-piece large diameter cylinder processed and small-diameter circular cylinder, the second shoulder hole of the small-diameter circular cylinder of syringe and needle point cap is slidingly matched, the lateral wall of the large diameter cylinder of syringe is radially coaxial to be provided with two blind holes, be provided with from the inside to the outside the second spring and steel ball in each blind hole, the madial wall of overcoat has been horizontally disposed with three sphere annular grooves from top to bottom, coat suit is on the large diameter cylinder and needle point cap of syringe, the large diameter cylinder of overcoat and syringe leans two steel balls in three sphere annular grooves any one by the second spring-compressed, and the split-type structure is adopted in the lower end of chuck.
The invention has the beneficial effects as follows: one, the present invention has increased the arm of force owing to being provided with overcoat, makes the operator laborsaving; Simultaneously, overcoat can be mobile vertically with respect to syringe, can protect needle point, be easy to carry, and is safer; And being arranged with two gears (namely being positioned at intermediate face annular groove and the sphere annular groove that is positioned at the below) outward, mobile overcoat by changing the relative position between overcoat and the syringe, uses anatomical lens to the demand of actual-gear thereby satisfy the operator; Consideration separation postabdomen etc. needs meticulous dissection operation, needs the dissecting needle of use different model, and impaired such as needle point in operating process, the actual conditions that need in time change.Barrel design is push type, and the lower end distinguish of chuck utilizes extruding that pin firmly is fixed on the chuck, only needs to press bottom cylinder, just can discharge dissecting needle and easily change; But the dissecting needle of chuck clamping different model.
Description of drawings
Fig. 1 is the main cutaway view of the device of dissection macrozooplankton of the present invention, and Fig. 2 is the main cutaway view of dissecting needle among Fig. 1 and chuck, chuck, needle point cap and the assembling of the first spring, and Fig. 3 is the A place enlarged drawing of Fig. 1.
Dissecting needle 1, chuck 2, chuck 3, needle point cap 4, the first spring 5, syringe 6, overcoat 7, steel ball 8, the second spring 9, the first cylinder 10, round platform 11, the first shoulder hole 12, connecting hole 13, the second shoulder hole 14, cannelure 15, annular boss 16, the second cylinder 17, catch 18, truncated cone-shaped hole 19, cylindrical hole 20, minute hand hole 21, transitional pore 22, screw thread shoulder hole 23, large diameter cylinder 24, small-diameter circular cylinder 25, blind hole 26, sphere annular groove 27, circle pushes away handle 28, spacing handle 29.
Embodiment
Embodiment one: in conjunction with Fig. 1 ~ Fig. 3 explanation, a kind of device of dissecting macrozooplankton of present embodiment, described device comprise chuck 2, chuck 3, needle point cap 4, the first spring 5, syringe 6, overcoat 7, two steel balls 8 and two the second springs 9; The center, lower end of needle point cap 4 is provided with the first shoulder hole 12 that communicates from the bottom to top, connecting hole 13 and the second shoulder hole 14, the aperture of connecting hole 13 is less than the aperture in the first shoulder hole 12, the aperture in the first shoulder hole 12 is less than the aperture in the second shoulder hole 14, the upper shoulder end face in the first shoulder hole 12 is processed a cannelure 15, the first shoulder hole 12, connecting hole 13, the second shoulder hole 14 and cannelure 15 coaxial settings, chuck 3 is by annular boss 16, the second cylinder 17 and catch 18 form, annular boss 16 is arranged on the upper surface of the second cylinder 17, catch 18 is packed on the lateral wall of the second cylinder 17 and arranges near the lower end of the second cylinder 17, annular boss 16, the second cylinder 17 and catch 18 coaxial settings and be made as one, the external diameter of annular boss 16 is less than the external diameter of the second cylinder 17, the lower end of the second cylinder 17 is processed with truncated cone-shaped hole 19 and the cylindrical hole 20 that communicates from the bottom to top successively, the aperture of cylindrical hole 20 equates with the small end aperture in truncated cone-shaped hole 19, chuck 3 is sleeved on the chuck 2 and the two is slidingly connected, the lower end of chuck 2 is arranged on the outside of chuck 3, chuck 3 is sleeved in the first shoulder hole 12 of needle point cap 4, the annular boss 16 of chuck 3 is arranged in the cannelure 15 of needle point cap 4, the lower end of needle point cap 4 is by catch 18 axial limitings on the chuck 3, the connecting hole 13 that needle point cap 4 is passed in the upper end of chuck 2 is arranged in the second shoulder hole 14, the upper end of chuck 2 lateral walls is provided with external screw thread, the center of syringe 6 upper surfaces is provided with the minute hand hole 21 that communicates from top to bottom, transitional pore 22 and screw thread shoulder hole 23, the first spring 5 is sleeved on the chuck 2 and is positioned at the second shoulder hole 14 of needle point cap 4, the upper end of chuck 2 is threaded with the screw thread shoulder hole 23 of syringe 6, chuck 2 is used for clamping dissecting needle 1, syringe 6 from top to bottom is comprised of all-in-one-piece large diameter cylinder 24 processed and small-diameter circular cylinder 25, the small-diameter circular cylinder 25 of syringe 6 is slidingly matched with the second shoulder hole 14 of needle point cap 4, the lateral wall of the large diameter cylinder 24 of syringe 6 is radially coaxial to be provided with two blind holes 26, be provided with from the inside to the outside the second spring 9 and steel ball 8 in each blind hole 26, the madial wall of overcoat 7 has been horizontally disposed with three sphere annular grooves 27 from top to bottom, overcoat 7 is sleeved on the large diameter cylinder 24 and needle point cap 4 of syringe 6, the large diameter cylinder 24 of overcoat 7 and syringe 6 leans two steel balls 8 in three sphere annular grooves 27 any one by 9 compressions of the second spring, and the split-type structure is adopted in the lower end of chuck 2.
Embodiment two: in conjunction with Fig. 1 explanation, the upper end of the described syringe 6 of present embodiment is provided with circle and pushes away handle 28, and the upper end of overcoat 7 is provided with spacing handle 29.Undocumented technical characterictic is identical with embodiment one in the present embodiment.
Embodiment three: in conjunction with Fig. 1 explanation, in described three the sphere annular grooves 27 of present embodiment, two spacing gears when the sphere annular groove 27 in the middle of being positioned at is worked as dissecting needle 1 with the sphere annular groove 27 that is positioned at the below are positioned at the sphere annular groove 27 of top as the spacing gear of the syringe needle income overcoat 7 of dissecting needle 1.Undocumented technical characterictic is identical with embodiment two in the present embodiment.
Embodiment four: in conjunction with Fig. 1 explanation, the profile of the needle point cap 4 of present embodiment is made of all-in-one-piece the first cylinder 10 processed and round platform 11, and the lower end of the larger diameter end of round platform 11 and the first cylinder 10 is connected, and is convenient to installation and spacing.Undocumented technical characterictic is identical with embodiment three in the present embodiment.
Embodiment five: in conjunction with Fig. 2 explanation, the described catch 18 of present embodiment is annular catch, and annular catch is fixedly set on the lateral wall of the second cylinder 17.Be convenient to spacing.Undocumented technical characterictic is identical with embodiment four in the present embodiment.
During use, do not fill first overcoat 7, first chuck 2 and chuck 3 are nested together, chuck 3 is sleeved in the needle point cap 4, and the annular boss 16 of chuck 3 is arranged in the cannelure 15 of needle point cap 4, be sleeved on the first spring 5 on the chuck 2 and be positioned at the second shoulder hole 14 of needle point cap 4, the upper end of chuck 2 is threaded with the screw thread shoulder hole 23 of syringe 6, dissecting needle 1 being packed in the syringe 6, packs steel ball 8 and the second spring 9 in the blind hole 26 of syringe 6 in the outside of needle point being exposed chuck 2 again, overcoat 7 is sleeved on syringe 6 and the needle point cap 4 at last, and sliding outer cover 7, by the compression of the second spring 9, so that steel ball 8 is arranged in the sphere annular groove 18 of corresponding gear.
Claims (5)
1. device of dissecting macrozooplankton, it is characterized in that: described device comprises chuck (2), chuck (3), needle point cap (4), the first spring (5), syringe (6), overcoat (7), two steel balls (8) and two the second springs (9); The center, lower end of needle point cap (4) is provided with the first shoulder hole (12) that communicates from the bottom to top, connecting hole (13) and the second shoulder hole (14), the aperture of connecting hole (13) is less than the aperture in the first shoulder hole (12), the aperture in the first shoulder hole (12) is less than the aperture in the second shoulder hole (14), the upper shoulder end face in the first shoulder hole (12) is processed a cannelure (15), the first shoulder hole (12), connecting hole (13), the second shoulder hole (14) and the coaxial setting of cannelure (15), chuck (3) is by annular boss (16), the second cylinder (17) and catch (18) form, annular boss (16) is arranged on the upper surface of the second cylinder (17), catch (18) is packed on the lateral wall of the second cylinder (17) and arranges near the lower end of the second cylinder (17), annular boss (16), the second cylinder (17) and the coaxial setting of catch (18) and be made as one, the external diameter of annular boss (16) is less than the external diameter of the second cylinder (17), the lower end of the second cylinder (17) is processed with truncated cone-shaped hole (19) and the cylindrical hole (20) that communicates from the bottom to top successively, the aperture of cylindrical hole (20) equates with the small end aperture of truncated cone-shaped hole (19), chuck (3) is sleeved on chuck (2) upward and the two is slidingly connected, the lower end of chuck (2) is arranged on the outside of chuck (3), chuck (3) is sleeved in the first shoulder hole (12) of needle point cap (4), the annular boss (16) of chuck (3) is arranged in the cannelure (15) of needle point cap (4), the lower end of needle point cap (4) is by catch (18) axial limiting on the chuck (3), the connecting hole (13) that needle point cap (4) are passed in the upper end of chuck (2) is arranged in the second shoulder hole (14), the upper end of chuck (2) lateral wall is provided with external screw thread, the center of syringe (6) upper surface is provided with the minute hand hole (21) that communicates from top to bottom, transitional pore (22) and screw thread shoulder hole (23), the first spring (5) is sleeved on chuck (2) upward and is positioned at the second shoulder hole (14) of needle point cap (4), the upper end of chuck (2) is threaded with the screw thread shoulder hole (23) of syringe (6), chuck (2) is used for clamping dissecting needle (1), syringe (6) from top to bottom is comprised of all-in-one-piece large diameter cylinder processed (24) and small-diameter circular cylinder (25), the small-diameter circular cylinder (25) of syringe (6) is slidingly matched with the second shoulder hole (14) of needle point cap (4), radially coaxial two blind holes (26) that are provided with of the lateral wall of the large diameter cylinder (24) of syringe (6), be provided with from the inside to the outside the second spring (9) and steel ball (8) in each blind hole (26), the madial wall of overcoat (7) has been horizontally disposed with three sphere annular grooves (27) from top to bottom, overcoat (7) is sleeved on the large diameter cylinder (24) and needle point cap (4) of syringe (6), the large diameter cylinder (24) of overcoat (7) and syringe (6) leans two steel balls (8) in three sphere annular grooves (27) any one by the second spring (9) compression, the lower end employing split-type structure of chuck (2).
2. described a kind of device of dissecting macrozooplankton according to claim 1, it is characterized in that: the upper end of described syringe (6) is provided with circle and pushes away handle (28), and the upper end of overcoat (7) is provided with spacing handle (29).
3. described a kind of device of dissecting macrozooplankton according to claim 2, it is characterized in that: in described three sphere annular grooves (27), two spacing gears when the sphere annular groove (27) in the middle of being positioned at and the sphere annular groove (27) that is positioned at the below works as dissecting needle (1), the sphere annular groove (27) above being positioned at is taken in the spacing gear of overcoat (7) as the syringe needle of dissecting needle (1).
4. described a kind of device of dissecting macrozooplankton according to claim 3, it is characterized in that: the profile of needle point cap (4) is made of all-in-one-piece the first cylinder processed (10) and round platform (11), and the lower end of the larger diameter end of round platform (11) and the first cylinder (10) is connected.
5. described a kind of device of dissecting macrozooplankton according to claim 4, it is characterized in that: described catch (18) is annular catch, and annular catch is fixedly set on the lateral wall of the second cylinder (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354902.6A CN102845327B (en) | 2012-09-21 | 2012-09-21 | Device for dissecting macro-zooplankton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354902.6A CN102845327B (en) | 2012-09-21 | 2012-09-21 | Device for dissecting macro-zooplankton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102845327A true CN102845327A (en) | 2013-01-02 |
| CN102845327B CN102845327B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210354902.6A Expired - Fee Related CN102845327B (en) | 2012-09-21 | 2012-09-21 | Device for dissecting macro-zooplankton |
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| Country | Link |
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| CN (1) | CN102845327B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394887A (en) * | 1994-01-14 | 1995-03-07 | Haaga; John R. | Biopsy needle |
| DE10312485A1 (en) * | 2003-03-20 | 2004-10-07 | Medi-Globe Gmbh | Endoscopic puncturing needle arrangement for carrying out biopsies comprises a flexible sliding hollow body arranged and sliding in an elastic catheter |
| CN201481461U (en) * | 2009-09-01 | 2010-05-26 | 中国人民解放军军事医学科学院微生物流行病研究所 | Tissue puncture sampler |
| CN202104949U (en) * | 2011-04-13 | 2012-01-11 | 山东理工大学 | Dissecting needle for laboratory |
| CN202738601U (en) * | 2012-09-21 | 2013-02-20 | 中国水产科学研究院黑龙江水产研究所 | Device for anatomizing macrozooplankton |
-
2012
- 2012-09-21 CN CN201210354902.6A patent/CN102845327B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394887A (en) * | 1994-01-14 | 1995-03-07 | Haaga; John R. | Biopsy needle |
| DE10312485A1 (en) * | 2003-03-20 | 2004-10-07 | Medi-Globe Gmbh | Endoscopic puncturing needle arrangement for carrying out biopsies comprises a flexible sliding hollow body arranged and sliding in an elastic catheter |
| CN201481461U (en) * | 2009-09-01 | 2010-05-26 | 中国人民解放军军事医学科学院微生物流行病研究所 | Tissue puncture sampler |
| CN202104949U (en) * | 2011-04-13 | 2012-01-11 | 山东理工大学 | Dissecting needle for laboratory |
| CN202738601U (en) * | 2012-09-21 | 2013-02-20 | 中国水产科学研究院黑龙江水产研究所 | Device for anatomizing macrozooplankton |
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| Publication number | Publication date |
|---|---|
| CN102845327B (en) | 2014-08-06 |
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Granted publication date: 20140806 Termination date: 20140921 |
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