CN214285295U - Colloid microsyringe for marrow cavity injection - Google Patents
Colloid microsyringe for marrow cavity injection Download PDFInfo
- Publication number
- CN214285295U CN214285295U CN202022677286.0U CN202022677286U CN214285295U CN 214285295 U CN214285295 U CN 214285295U CN 202022677286 U CN202022677286 U CN 202022677286U CN 214285295 U CN214285295 U CN 214285295U
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- Prior art keywords
- medicine
- injection
- lateral
- hollow needle
- colloid
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- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 47
- 239000007924 injection Substances 0.000 title claims abstract description 47
- 239000000084 colloidal system Substances 0.000 title claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 48
- 239000007787 solid Substances 0.000 claims abstract description 7
- 241000251468 Actinopterygii Species 0.000 claims description 10
- 229940079593 drug Drugs 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- 210000001185 bone marrow Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940126589 solid medicine Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a colloid trace injector for marrow cavity injection belongs to colloidal substance injection technical field, add medicine pulp cavity puncture hollow needle, piston rod, side including side and add medicine tube and add medicine injection pole, the front end that medicine pulp cavity puncture hollow needle was added to side is the oblique shape puncture form, the piston rod sets up and adds medicine pulp cavity puncture hollow needle inside and with side and add medicine pulp cavity puncture hollow needle sliding fit in side, side adds the medicine tube and is the slope state and is linked together with medicine pulp cavity puncture hollow needle to side, it is solid construction to add medicine injection pole, it sets up and adds medicine tube sliding fit inside and with side in side medicine tube to add the medicine injection pole, the front end of piston rod and the front end that adds the medicine injection pole are equipped with piston seal rubber ring. The utility model discloses a colloid microsyringe for marrow cavity injection can inject the colloid that the viscosity is high, is favorable to the evenly distributed of medicine simultaneously.
Description
Technical Field
The utility model relates to a colloid microsyringe for mouse marrow cavity injection for the application of sample of trace volume material belongs to colloidal substance injection technical field.
Background
The existing microsyringe for injecting the marrow cavity is mostly suitable for liquid and colloidal solution with low viscosity, and has the defect that the colloid cannot be injected when the colloid with high viscosity is subjected to micro-injection due to the limitation of the diameter of a needle hole. In animal experimental research, injection of a femoral medullary cavity colloid solution is often used, but no effective instrument is available at present to meet the current injection requirement.
The bone marrow extraction and/or injection device as disclosed in chinese patent CN1909846A comprises a handheld area, a needle having at least one side hole, a shield enclosing at least part of said needle, the shield being movably mounted with respect to said needle between a blocking position of said at least one side hole and an open position of said at least one side hole. The technical scheme aims to prevent any microbial contamination of bone marrow, but the traditional injection needle adopted by the technical scheme cannot solve the problem that high-viscosity colloid cannot be injected.
Also for example, chinese patent CN107875483A discloses an injection device in marrow cavity, which comprises an injection tube body, a cap, a push rod, and a fixed connection seat, wherein the bottom of the injection tube body is connected with an injection needle through the fixed connection seat, the top of the injection tube body is connected to the bottom of the push rod through a piston, the top of the push rod is connected with the cap, the injection needle is connected in a multi-section manner, the side of the injection needle is uniformly provided with an inward recessed through hole, and the injection tube body is internally provided with a liquid control check valve. The injection of bone marrow for different tissue depth can be realized by the multi-section connection and the through hole designed on the injection needle. It also does not solve the technical problem of not being able to inject a high viscosity gel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a colloid microsyringe for marrow cavity injection to solve above-mentioned technical problem.
The utility model provides a colloid micro-sample injector for marrow cavity injection, which comprises a lateral dosing marrow cavity puncture hollow needle, a piston rod, a lateral dosing tube and a dosing push injection rod, the lateral drug-adding medullary cavity puncture hollow needle is of a hollow structure, the front end of the lateral drug-adding medullary cavity puncture hollow needle is of an oblique puncture shape, the piston rod is of a solid structure, is arranged inside the lateral dosing medullary cavity puncture hollow needle and is in sliding fit with the lateral dosing medullary cavity puncture hollow needle, the lateral medicine feeding tube is of a hollow structure and is communicated with the lateral medicine feeding medullary cavity puncture hollow needle in an inclined state, the medicine adding push rod is of a solid structure, the medicine adding push rod is arranged inside the medicine adding pipe on the side and is in sliding fit with the medicine adding pipe on the side, and a piston sealing rubber ring is arranged at the front end of the piston rod and the front end of the medicine adding push rod.
Furthermore, the rod body of the dosing injection rod is provided with scales.
Furthermore, the lateral dosing medullary cavity puncture hollow needle is provided with a plurality of fish scale barb holes which are respectively and symmetrically arranged with two holes in a circumferential and array way.
Compared with the prior art, the beneficial effects of the utility model reside in that:
one of the two, the utility model discloses in the piston rod pushed the pjncture needle, be convenient for empty the piece in the pjncture needle, pjncture needle inner chamber does benefit to the micro-filling of the high colloid of viscosity, and the piston rod impels the distal end that adds the medicine pulp cavity puncture hollow needle with the medicine side, and side fish scale appearance barb hole and distal end oblique puncture syringe needle all can have the infiltration of medicine, are favorable to the evenly distributed of medicine to accomplish the micro-filling of the high colloid of viscosity smoothly, and the injection volume is easily controlled, and is easy and simple to handle, and the degree of difficulty is low, and it is consuming time to reduce the experiment.
And secondly, the utility model discloses fish scale appearance barb hole clockwise rotation gets into has the effect of enlarging the pulp cavity, and anticlockwise back-spin has the clastic effect in the compaction pulp cavity, makes the pulp cavity do benefit to the micro-filling of the high colloid of viscosity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
Reference numerals:
the side medicine-adding medullary cavity puncture hollow needle 1, the piston rod 2, the side medicine-adding tube 3, the medicine-adding injection rod 4, the fish scale barb hole 5 and the scale 6.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in the following drawings by combining with figures 1 to 2, the embodiment of the utility model provides a colloid micro-sample injector for marrow cavity injection, which comprises a lateral dosing marrow cavity puncture hollow needle 1, a piston rod 2, a lateral dosing hollow needle 3 and a dosing push rod 4, wherein the lateral dosing marrow cavity puncture hollow needle 1 is of a hollow structure, the front end of the lateral dosing marrow cavity puncture hollow needle 1 is of an oblique puncture shape, the piston rod 2 is of a solid structure, the piston rod 2 is arranged inside the lateral dosing marrow cavity puncture hollow needle 1 and is in sliding fit with the lateral dosing marrow cavity puncture hollow needle 1, the lateral dosing hollow needle 3 is of a hollow structure, the lateral dosing hollow needle 3 is in an oblique state and is communicated with the lateral dosing marrow cavity puncture hollow needle 1, the dosing push rod 4 is of a solid structure, the lateral dosing push rod 4 is arranged inside the dosing hollow needle 3 and is in sliding fit with the lateral dosing hollow needle 3, piston sealing rubber rings are arranged at the front end of the piston rod 2 and the front end of the dosing injection rod 4; in the piston rod 2 pushed the pjncture needle, be convenient for empty the piece in the pjncture needle, the pjncture needle inner chamber does benefit to the micro-filling of the high colloid of viscosity, piston rod 2 impels the distal end that adds medicine pulp chamber puncture hollow needle 1 with the medicine side, side fish scale appearance barb hole 5 and distal end oblique puncture syringe needle all can have the infiltration of medicine, be favorable to the evenly distributed of medicine, can accomplish the micro-filling of the high colloid of viscosity smoothly, the injection volume is easily controlled, and is easy and simple to handle, and the degree of difficulty is low, and it is consuming time to reduce the experiment.
The lateral dosing tube 3 is made of transparent materials, so that the state of colloid in the tube can be observed conveniently, the dosing amount can be controlled, and the rod body of the dosing push-injection rod 4 is provided with scales 6; the dosing and pushing rod 4 is provided with scales 6, the length of each dosing and pushing rod is about 2mm, about 1.5ul of colloid medicine enters the puncture needle, and the maximum pushing depth is 8mm and about 6ul each time; the colloidal drug is pushed into the distal end using the piston rod 2.
The lateral dosing medullary cavity puncture hollow needle 1 is provided with a plurality of fish scale-shaped barb holes 5, and the fish scale-shaped barb holes 5 are respectively and symmetrically arranged at two sides of the circumference and are arranged in an array; the fish scale-like barb holes 5 rotate clockwise to enter the marrow cavity expanding function, and rotate counterclockwise to have the function of compacting the debris in the marrow cavity, so that the marrow cavity is beneficial to micro filling of high-viscosity colloid.
The utility model discloses an application step: firstly, a lateral dosing medullary cavity puncture hollow needle 1 is used for performing medullary cavity puncture, after a medullary cavity is broken, the bone enters in a clockwise spiral mode, and after the puncture depth is reached, the bone is screwed out in a counterclockwise mode by half of the entering distance; the scale-like barb holes 5 rotate clockwise to enter the marrow cavity expanding function and rotate counterclockwise to have the function of compacting the chips in the marrow cavity; after the depth is satisfied, pushing in the piston rod 2, pushing the piston rod 2 into the lateral dosing medullary cavity puncture hollow needle 1, emptying the debris in the puncture needle, and withdrawing the piston rod 2; adding solid medicine from the lateral medicine adding tube 3, and pushing the medicine into the lateral medicine adding medullary cavity puncture hollow needle 1 by using the medicine adding push-injection rod 4; the piston rod 2 is used for pushing in, the medicine is pushed into the far end of the lateral dosing medullary cavity puncture hollow needle 1, and the lateral side and the far end can be penetrated by the medicine, so that the medicine is uniformly distributed; the dosing injection rod 4 is provided with scales 6, the length of each injection is about 2mm, 1.5ul of medicine enters the puncture needle, and the maximum injection depth is 8mm and 6ul each time; the medicament is pushed into the distal end using the piston rod 2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (3)
1. A colloid microsyringe for use in intramedullary canal injection, comprising: comprises a lateral drug-adding medullary cavity puncture hollow needle (1), a piston rod (2), a lateral drug-adding tube (3) and a drug-adding injection rod (4), the lateral drug-adding medullary cavity puncture hollow needle (1) is of a hollow structure, the front end of the lateral drug-adding medullary cavity puncture hollow needle (1) is of an oblique puncture shape, the piston rod (2) is of a solid structure, the piston rod (2) is arranged inside the lateral dosing medullary cavity puncture hollow needle (1) and is in sliding fit with the lateral dosing medullary cavity puncture hollow needle (1), the lateral medicine feeding tube (3) is of a hollow structure, the lateral medicine feeding tube (3) is communicated with the lateral medicine feeding medullary cavity puncture hollow needle (1) in an inclined state, the drug adding push-injection rod (4) is of a solid structure, the drug adding push-injection rod (4) is arranged inside the lateral drug adding pipe (3) and is in sliding fit with the lateral drug adding pipe (3), and piston sealing rubber rings are arranged at the front end of the piston rod (2) and the front end of the dosing injection rod (4).
2. The colloid microsyringe for intramedullary canal injection of claim 1, wherein: the body of rod of adding medicine injection pole (4) has scale (6).
3. The colloidal microsyringe for intramedullary canal injection according to claim 1 or claim 2, characterized in that: the lateral dosing medullary cavity puncture hollow needle (1) is provided with a plurality of fish scale-shaped barb holes (5), and the fish scale-shaped barb holes (5) are respectively and circumferentially symmetrically arranged with two holes and are arranged in an array manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022677286.0U CN214285295U (en) | 2020-11-18 | 2020-11-18 | Colloid microsyringe for marrow cavity injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022677286.0U CN214285295U (en) | 2020-11-18 | 2020-11-18 | Colloid microsyringe for marrow cavity injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214285295U true CN214285295U (en) | 2021-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022677286.0U Expired - Fee Related CN214285295U (en) | 2020-11-18 | 2020-11-18 | Colloid microsyringe for marrow cavity injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214285295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336494A (en) * | 2020-11-18 | 2021-02-09 | 中国人民解放军总医院第一医学中心 | Colloid microsyringe for marrow cavity injection |
-
2020
- 2020-11-18 CN CN202022677286.0U patent/CN214285295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336494A (en) * | 2020-11-18 | 2021-02-09 | 中国人民解放军总医院第一医学中心 | Colloid microsyringe for marrow cavity injection |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |