CN204275189U - A kind of injecting head structure - Google Patents
A kind of injecting head structure Download PDFInfo
- Publication number
- CN204275189U CN204275189U CN201420663868.5U CN201420663868U CN204275189U CN 204275189 U CN204275189 U CN 204275189U CN 201420663868 U CN201420663868 U CN 201420663868U CN 204275189 U CN204275189 U CN 204275189U
- Authority
- CN
- China
- Prior art keywords
- hole
- conical
- spike body
- diameter
- medicinal liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000011148 porous material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000035807 sensation Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
This utility model relates to injector technology field, be specifically related to a kind of injecting head structure, comprise the inner spike body for through hole, the liquid outlet of spike body is inclined plane, and spike body is the cylindrical shape that external diameter is equal, and the through hole in spike body is conical through-hole, one end that conical through-hole diameter is little is liquid feeding end, one end that conical through-hole diameter is large is liquid outlet, and wherein, the maximum gauge of conical through-hole is 1.1-1.5 times of minimum diameter.Because the conical through-hole of spike body designs, medicinal liquid enters syringe spike body diameter and becomes in large conical through-hole gradually, medicinal liquid enters after in conical through-hole, because through-hole diameter increases gradually, certain release can be carried out to the pressure of medicinal liquid, thus the relative speed slowing down medicinal liquid and flow out from spike body, such medicinal liquid also can be injected in human body slowly, reduces medicinal liquid and enters human body fast and the inadaptable sensation that causes.
Description
Technical field
This utility model relates to injector technology field, is specifically related to a kind of injecting head structure.
Background technology
Syringe is a kind of common medical instruments, comprise the syringe with drain pipe, with the piston rod coordinated with syringe in insertion syringe, piston rod one end is provided with plug close-fitting with syringe inwall, and the syringe needle be enclosed within drain pipe, drive the liquid in plug extruding syringe to discharge from syringe needle by promoting piston rod; Existing syringe needle comprises metal cylinder, through hole in cylindrical shell is that diameter is equal, so in use because pin cylinder pressure is larger, the medicinal liquid speed flowed out from syringe needle is fast, and fluid temperature is lower, like this when to human injection, because medicinal liquid injects too fast and temperature is too low, human body sensory is caused to be not suitable with.
Summary of the invention
For the problems referred to above, the purpose of this utility model be to provide a kind of structure simple, the injecting head structure that medicinal liquid enters human body speed can be slowed down, like this in human injection's process, human body can not produce uncomfortable sensation.
Realize the technical solution of the utility model as follows:
A kind of injecting head structure, comprise the inner spike body for through hole, the liquid outlet of spike body is inclined plane, spike body is the cylindrical shape that external diameter is equal, through hole in spike body is conical through-hole, and one end that conical through-hole diameter is little is liquid feeding end, and one end that conical through-hole diameter is large is liquid outlet, wherein, the maximum gauge of conical through-hole is 1.1-1.5 times of minimum diameter.
Have employed technique scheme, with a injection needle, in this utility model, the conical through-hole minimum diameter of spike body is identical with the through hole of existing syringe needle, can not affect the performance of original injection needle like this; When injecting, because the conical through-hole of spike body designs, medicinal liquid enters syringe spike body diameter and becomes in large conical through-hole gradually, medicinal liquid enters after in conical through-hole, because through-hole diameter increases gradually, certain release can be carried out to the pressure of medicinal liquid, thus the relative speed slowing down medicinal liquid and flow out from spike body, such medicinal liquid also can be injected in human body slowly, the inadaptable sensation that reduction medicinal liquid enters human body fast and causes.
Further, for the ease of the installation to injection needle, described spike body is fixed with the limited block that diameter is greater than spike body diameter, this limited block offers the intercommunicating pore be connected with spike body inner via hole.
Further, described spike body is arranged with the spacing cutting ferrule for blocking limited block, this spacing cutting ferrule blocks limited block and forms an entirety.
Accompanying drawing explanation
Fig. 1 be this utility model needle head structure partly cut open schematic diagram;
Fig. 2 is the schematic diagram of limited block in this utility model;
Fig. 3 be with this utility model needle head structure with the use of syringe cylinder structure schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further illustrated.
As Fig. 1-3, a kind of injecting head structure, comprise the inner spike body 2 for through hole 1, the liquid outlet of spike body is inclined plane 3, and spike body is the cylindrical shape that external diameter is equal, and the through hole in spike body is conical through-hole, one end that conical through-hole diameter is little is liquid feeding end 4, one end that conical through-hole diameter is large is liquid outlet 5, and wherein, the maximum gauge of conical through-hole is 1.1-1.5 times of minimum diameter.In concrete enforcement, best when the maximum gauge of conical through-hole is 1.3 times of minimum diameter, one is, can realize medicinal liquid like this and inject human body function slowly, two are, can not affect the performances such as the hardness of whole spike body like this.
Wherein, spike body is fixed with the limited block 6 that diameter is greater than spike body diameter, this limited block offers the intercommunicating pore 7 be connected with spike body inner via hole.Limited block is circular, and be fixed with several inserted blocks 8 protruded to limited block outside direction at the outer peripheral face of limited block, spike body is arranged with the spacing cutting ferrule 9 for blocking limited block, this spacing cutting ferrule blocks limited block and forms an entirety.The inwall of spacing cutting ferrule offers and inserted block 8 quantity, the equal corresponding slot 10 of shape, after inserted block one_to_one corresponding slot inserts, limited block can be fastened be limited in spacing cutting ferrule, limited block can not rotate and move, in such solution injection process, syringe needle because to rotate or mobile, and causes the problem that cannot inject.
See Fig. 3, the link of syringe 11 comprises sleeve pipe 12, and with the central canal 13 for being communicated with syringe needle, this central canal is communicated with for the inner chamber 14 depositing medicinal liquid with syringe; The inwall of sleeve pipe has connecting thread 15, the screw thread 16 coordinated with connecting thread 15 is provided with at spacing cutting ferrule outer peripheral face, the height of central canal is lower than the height of sleeve pipe, spacing like this cutting ferrule and telescopic joint, and limited block just in time withstand on central canal formed fit tightly, to limited block formed sealing and spacing, ensure to be connected firmly, after connection puts in place, central canal is communicated with syringe needle by the intercommunicating pore of limited block.
Obviously, describe in accompanying drawing position relationship only for exemplary illustration, the restriction to this patent can not be interpreted as; The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (3)
1. an injecting head structure, comprise the inner spike body for through hole, it is characterized in that, the liquid outlet of spike body is inclined plane, and spike body is the cylindrical shape that external diameter is equal, and the through hole in spike body is conical through-hole, one end that conical through-hole diameter is little is liquid feeding end, one end that conical through-hole diameter is large is liquid outlet, and wherein, the maximum gauge of conical through-hole is 1.1-1.5 times of minimum diameter.
2. a kind of injecting head structure according to claim 1, is characterized in that, described spike body is fixed with the limited block that diameter is greater than spike body diameter, this limited block offers the intercommunicating pore be connected with spike body inner via hole.
3. a kind of injecting head structure according to claim 2, is characterized in that, described spike body is arranged with the spacing cutting ferrule for blocking limited block, and this spacing cutting ferrule blocks limited block and forms an entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420663868.5U CN204275189U (en) | 2014-11-07 | 2014-11-07 | A kind of injecting head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420663868.5U CN204275189U (en) | 2014-11-07 | 2014-11-07 | A kind of injecting head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204275189U true CN204275189U (en) | 2015-04-22 |
Family
ID=52858393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420663868.5U Expired - Fee Related CN204275189U (en) | 2014-11-07 | 2014-11-07 | A kind of injecting head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204275189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420169A (en) * | 2020-04-09 | 2020-07-17 | 广州医科大学附属肿瘤医院 | Side hole needle head |
-
2014
- 2014-11-07 CN CN201420663868.5U patent/CN204275189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420169A (en) * | 2020-04-09 | 2020-07-17 | 广州医科大学附属肿瘤医院 | Side hole needle head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211107 |