CN203043166U - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- CN203043166U CN203043166U CN 201320019034 CN201320019034U CN203043166U CN 203043166 U CN203043166 U CN 203043166U CN 201320019034 CN201320019034 CN 201320019034 CN 201320019034 U CN201320019034 U CN 201320019034U CN 203043166 U CN203043166 U CN 203043166U
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- CN
- China
- Prior art keywords
- needle tubing
- piston rod
- described needle
- syringe
- groove
- 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
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Abstract
The utility model relates to the field of medical care, in particular to a syringe. The syringe comprises a needle tube and a piston rod. The piston rod is embedded into the needle tube. The inner wall of the needle tube is provided with inner threads. Outer threads matched with the inner threads of the needle tube are arranged on the outer surface of the piston rod. The syringe can be used for accurate injection, and can reduce pain feeling of a patient at injection time.
Description
Technical field
This utility model relates to medical care, relates in particular to a kind of syringe.
Background technology
At present, the injection volume of some medicinal liquid has strict requirement, and injection too much may have side effects, and injects very fewly, may disease not reached the curative effect of expection.
Conventional injector is made up of needle tubing and piston rod, and described piston rod embeds in the described needle tubing and slippage in described needle tubing.Promote described piston rod, piston rod slippage in described needle tubing is injected the medicinal liquid in the described needle tubing in the patient.
Medical personnel when using syringe to inject these injection volume is had the medicinal liquid of strict demand to sufferer, medical personnel are in the process that promotes piston rod, medical personnel may exert oneself inequality or shakiness, perhaps medical personnel inject unskilled, the fltting speed of piston rod in needle tubing is sometimes fast and sometimes slow, injection volume very likely surpasses the dosage of regulation, does not perhaps reach the dosage of regulation.
Therefore, conventional injector can not be injected the injection volume of regulation accurately.
The utility model content
The purpose of this utility model is to provide a kind of syringe, uses this syringe, can inject accurately.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A kind of syringe comprises needle tubing and piston rod;
Described piston rod is embedded in the described needle tubing;
The inwall of described needle tubing is provided with female thread, and the outer surface of described piston rod is provided with the external screw thread with the screw-internal thread fit of described needle tubing.
Further, the outer surface of described needle tubing evenly is provided with many grooves along the central axial direction of described needle tubing.
Preferably, the groove of described needle tubing is the annular groove around the circumference setting of described needle tubing.
Further, an end that exposes outside described needle tubing of described piston rod is provided with knob;
The side of described knob is provided with along the groove of the central axial direction of described needle tubing.
Further, the outer surface of the end of described needle tubing along the circumferential direction evenly is provided with many grooves.
Further, the outer surface of described needle tubing evenly is provided with many raised lines along the central axial direction of described needle tubing.
Preferably, the raised line of described needle tubing is the ring rib around the circumference setting of described needle tubing.
Further, an end that exposes outside described needle tubing of described piston rod is provided with knob;
The side of described knob is provided with along the raised line of the central axial direction of described needle tubing.
Further, the outer surface of the end of described needle tubing along the circumferential direction evenly is provided with many raised lines.
Compared with prior art, advantage of the present utility model is: the inwall of described needle tubing is provided with female thread, the outer surface of described piston rod is provided with the external screw thread with the screw-internal thread fit of described needle tubing, rotate described piston rod, because the external screw thread of described piston rod and the screw-internal thread fit of described needle tubing, described piston rod can be passed in described needle tubing.When medical personnel used this syringe to inject, one held needle tubing, rotated described piston rod on the other hand, and piston rod is passed in described needle tubing, when the dosage of injection reaches requirement, stopped the rotation.If the use conventional injector, because the inwall of needle tubing is smooth, when the dosage of injection reached requirement, medical personnel were firmly uneven or unstable, can't guarantee to stop accurately injection.Therefore, when syringe of the present utility model can reach requirement at the dosage of injection, the described piston rod that stops the rotation was realized injection accurately.
In further technical scheme, the needle tubing of described syringe is provided with many grooves, described groove can be used as scale marker, when piston rod when rotated, when the position of described piston rod in described needle tubing reaches predetermined scale, the described piston rod that can stop the rotation in real time makes injection volume further accurate.
In addition, the knob of described syringe is provided with groove, the end of described needle tubing is provided with many grooves, the groove of the end of described needle tubing can be used as the sign of dosage, when the described piston rod of rotation, described knob can together rotate with described piston rod, and the groove on the described knob is corresponding with a groove of the end of described needle tubing, medical personnel can be according to the corresponding dosage sign of this groove, real-time grasp injection volume.And described piston rod rotates a circle, the groove of the outer surface of corresponding described needle tubing, may described piston rod have only advanced spacing between two grooves, but the groove of the end of corresponding described needle tubing, groove on the described piston rod whole circumference that advanced, the groove that is the end of described needle tubing segments the displacement between per two grooves of the outer surface of described needle tubing, makes injection volume more accurate.
In addition, medical personnel when using this syringe to inject, except can guarantee injection volume precisely, can also alleviate the misery of patient when receiving injection.Medical personnel are when using conventional injector, promote in the process of piston rod, medical personnel may exert oneself inequality or shakiness, perhaps medical personnel inject unskilled, the fltting speed of piston rod in needle tubing is sometimes fast and sometimes slow, rocking of syringe makes the syringe needle of syringe rock in the patient body, and the pain increased to make patient.And the fltting speed of piston rod in needle tubing is sometimes fast and sometimes slow, and it is sometimes fast and sometimes slow that namely medicinal liquid injects the interior speed of patient body, the distending pain sense of aggravation patient's injection place.And originally be the described syringe of utility model, medical personnel one hold needle tubing, on the other hand rotate described piston rod, medical personnel can control the speed of rotation, make steadily advancing at the uniform velocity of piston rod, medicinal liquid is injected in the patient body equably, simultaneously, the injection of medical personnel's both hands, more steady than the singlehanded injection of conventional injector, the syringe needle of syringe can not rock, and can alleviate patient's pain.
Description of drawings
In order to be illustrated more clearly in this utility model specific embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the specific embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structure chart of the syringe that Fig. 1 provides for this utility model embodiment.
The specific embodiment
Below with reference to accompanying drawing the technical scheme of each embodiment of this utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that this utility model is protected.
Embodiment 1
Enclose the syringe that present embodiment provides as described in Figure 1, comprise needle tubing 104 and piston rod 107; Described piston rod 107 is embedded in the described needle tubing 104; The inwall of described needle tubing 104 is provided with female thread, and the outer surface of described piston rod 107 is provided with the external screw thread 102 with the screw-internal thread fit of described needle tubing 104.
The inwall of described needle tubing 104 is provided with female thread, the outer surface of described piston rod 107 is provided with the external screw thread 102 with the screw-internal thread fit of described needle tubing 104, rotate described piston rod 107, because the external screw thread 102 of described piston rod 107 and the screw-internal thread fit of described needle tubing 104, described piston rod 107 can be passed in described needle tubing 104.When medical personnel used this syringe to inject, one held needle tubing 104, rotated described piston rod 107 on the other hand, and piston rod 107 is passed in described needle tubing 104, when the dosage of injection reaches requirement, stops the rotation.If the use conventional injector, because the inwall of needle tubing is smooth, when the dosage of injection reached requirement, medical personnel were firmly uneven or unstable, can't guarantee to stop accurately injection.Therefore, when syringe of the present utility model can reach requirement at the dosage of injection, the described piston rod 107 that stops the rotation was realized injection accurately.Certainly, when medical personnel extract medicinal liquid, can the described piston rod 107 of reverse rotation, described piston rod 107 is outwards mobile in described needle tubing 104, and when the medicinal liquid that extracts met the requirements of dosage, described piston rod stopped the rotation.
Embodiment 2
Enclose the syringe that present embodiment provides as described in Figure 1, comprise needle tubing 104 and piston rod 107; Described piston rod 107 is embedded in the described needle tubing 104; The inwall of described needle tubing 104 is provided with female thread, and the outer surface of described piston rod 107 is provided with the external screw thread 102 with the screw-internal thread fit of described needle tubing 104.
The inwall of described needle tubing 104 is provided with female thread, the outer surface of described piston rod 107 is provided with the external screw thread 102 with the screw-internal thread fit of described needle tubing 104, rotate described piston rod 107, because the external screw thread 102 of described piston rod 107 and the screw-internal thread fit of described needle tubing 104, described piston rod 107 can be passed in described needle tubing 104.When medical personnel used this syringe to inject, one held needle tubing 104, rotated described piston rod 107 on the other hand, and piston rod 107 is passed in described needle tubing 104, when the dosage of injection reaches requirement, stops the rotation.If the use conventional injector, because the inwall of needle tubing is smooth, when the dosage of injection reached requirement, medical personnel were firmly uneven or unstable, can't guarantee to stop accurately injection.Therefore, when syringe of the present utility model can reach requirement at the dosage of injection, the described piston rod 107 that stops the rotation was realized injection accurately.Certainly, when medical personnel extract medicinal liquid, can the described piston rod 107 of reverse rotation, described piston rod 107 is outwards mobile in described needle tubing 104, and when the medicinal liquid that extracts met the requirements of dosage, described piston rod stopped the rotation.
Further, the outer surface of described needle tubing 104 evenly is provided with many grooves 105 along the central axial direction of described needle tubing 104.Preferably, the groove 105 of described needle tubing 104 is the annular groove around the circumference setting of described needle tubing.Described groove also can be the semi-round ring shape groove.
The needle tubing 104 of described syringe is provided with many grooves 105, described groove 105 can be used as scale marker, when piston rod 107 when rotated, when the position of described piston rod 107 in described needle tubing 104 reaches predetermined scale, the described piston rod 107 that can stop the rotation in real time makes injection volume further accurate.For example, the needle tubing of described syringe can arrange five grooves, and five groove difference correspondences identify 5 milliliters, 10 milliliters, 15 milliliters, 20 milliliters, 20 milliliters.
Further, an end that exposes outside described needle tubing 104 of described piston rod 107 is provided with knob 106; The side of described knob 106 is provided with the groove 101 along the central axial direction of described needle tubing 104.
Accordingly, the outer surface of the end of described needle tubing 104 along the circumferential direction evenly is provided with many grooves 103.
The knob 106 of described syringe is provided with groove 101, the end of described needle tubing 104 is provided with many grooves 103, the groove 103 of the end of described needle tubing 104 can be used as the sign of dosage, when the described piston rod 107 of rotation, described knob 106 can together rotate with described piston rod 107, groove 101 on the described knob 106 is corresponding with a groove 103 of the end of described needle tubing 104, and medical personnel can be according to these groove 101 corresponding dosage signs, real-time grasp injection volume.And described piston rod 107 rotates a circle, the groove 105 of the outer surface of corresponding described needle tubing 104, may described piston rod have only advanced spacing between two grooves, but the groove 103 of the end of corresponding described needle tubing 104, groove on the described piston rod whole circumference that advanced, the groove that is the end of described needle tubing segments the displacement between per two grooves of the outer surface of described needle tubing, makes injection volume more accurate.For example, the end of described needle tubing can arrange 10 grooves.Described piston rod rotates a circle, the scale that described piston rod advances in described needle tubing, if the volume between two grooves of the outer surface of described needle tubing is represented 5 milliliters, be that described piston rod rotates a circle, the injection tolerance of described syringe is 5 milliliters, accordingly, described piston rod rotates a circle, the groove that arranges on the described piston rod turns over 10 grooves of the end of described needle tubing, 10 grooves that are the end of described needle tubing segment 10 five equilibriums with 5 represented ml volumes between two grooves on the surface of described needle tubing, and the corresponding scale of each groove is 0.5 milliliter, therefore, medical personnel can grasp injection volume in real time when injection.
Certainly, the sign that plays the scale effect not merely can adopt groove, can also adopt raised line.The outer surface that is described needle tubing 104 evenly is provided with many raised lines along the central axial direction of described needle tubing 104.Preferably, the raised line of described needle tubing 104 is the ring rib around the circumference setting of described needle tubing 104.An end that exposes outside described needle tubing of described piston rod 107 is provided with knob; The side of described knob is provided with along the raised line of the central axial direction of described needle tubing.The outer surface of the end of described needle tubing along the circumferential direction evenly is provided with many raised lines.
In addition, medical personnel when using this syringe to inject, except can guarantee injection volume precisely, can also alleviate the misery of patient when receiving injection.Medical personnel are when using conventional injector, promote in the process of piston rod, medical personnel may exert oneself inequality or shakiness, perhaps medical personnel inject unskilled, the fltting speed of piston rod in needle tubing is sometimes fast and sometimes slow, rocking of syringe makes the syringe needle of syringe rock in the patient body, and the pain increased to make patient.And the fltting speed of piston rod in needle tubing is sometimes fast and sometimes slow, and it is sometimes fast and sometimes slow that namely medicinal liquid injects the interior speed of patient body, the distending pain sense of aggravation patient's injection place.And originally be the described syringe of utility model, medical personnel one hold needle tubing, on the other hand rotate described piston rod, medical personnel can control the speed of rotation, make steadily advancing at the uniform velocity of piston rod, medicinal liquid is injected in the patient body equably, simultaneously, the injection of medical personnel's both hands, more steady than the singlehanded injection of conventional injector, the syringe needle of syringe can not rock, and can alleviate patient's pain.
The above, it only is preferred embodiment of the present utility model, be not that this utility model is done any pro forma restriction, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a syringe is characterized in that, comprises needle tubing and piston rod;
Described piston rod is embedded in the described needle tubing;
The inwall of described needle tubing is provided with female thread, and the outer surface of described piston rod is provided with the external screw thread with the screw-internal thread fit of described needle tubing.
2. syringe as claimed in claim 1 is characterized in that, the outer surface of described needle tubing evenly is provided with many grooves along the central axial direction of described needle tubing.
3. syringe as claimed in claim 2 is characterized in that, the groove of described needle tubing is the annular groove around the circumference setting of described needle tubing.
4. as each described syringe in the claim 1～3, it is characterized in that an end that exposes outside described needle tubing of described piston rod is provided with knob;
The side of described knob is provided with along the groove of the central axial direction of described needle tubing.
5. syringe as claimed in claim 4 is characterized in that, the outer surface of the end of described needle tubing along the circumferential direction evenly is provided with many grooves.
6. syringe as claimed in claim 1 is characterized in that, the outer surface of described needle tubing evenly is provided with many raised lines along the central axial direction of described needle tubing.
7. syringe as claimed in claim 6 is characterized in that, the raised line of described needle tubing is the ring rib around the circumference setting of described needle tubing.
8. as each described syringe in the claim 1,6 or 7, it is characterized in that an end that exposes outside described needle tubing of described piston rod is provided with knob;
The side of described knob is provided with along the raised line of the central axial direction of described needle tubing.
9. syringe as claimed in claim 8 is characterized in that, the outer surface of the end of described needle tubing along the circumferential direction evenly is provided with many raised lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019034 CN203043166U (en) | 2013-01-15 | 2013-01-15 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019034 CN203043166U (en) | 2013-01-15 | 2013-01-15 | Syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043166U true CN203043166U (en) | 2013-07-10 |
Family
ID=48726172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019034 Expired - Fee Related CN203043166U (en) | 2013-01-15 | 2013-01-15 | Syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525074A (en) * | 2018-06-19 | 2018-09-14 | 江苏万淇生物科技股份有限公司 | It is a kind of to import uniform type syringe |
-
2013
- 2013-01-15 CN CN 201320019034 patent/CN203043166U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525074A (en) * | 2018-06-19 | 2018-09-14 | 江苏万淇生物科技股份有限公司 | It is a kind of to import uniform type syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |