CN104759007A - Medicine dispensing needle - Google Patents
Medicine dispensing needle Download PDFInfo
- Publication number
- CN104759007A CN104759007A CN201510207809.6A CN201510207809A CN104759007A CN 104759007 A CN104759007 A CN 104759007A CN 201510207809 A CN201510207809 A CN 201510207809A CN 104759007 A CN104759007 A CN 104759007A
- Authority
- CN
- China
- Prior art keywords
- needle
- medicine
- feeding hole
- needle tip
- medicine feeding
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3286—Needle tip design, e.g. for improved penetration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/329—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
- A61M5/3291—Shafts with additional lateral openings
Abstract
The invention provides a medicine dispensing needle and belongs to the technical field of medical supplies. The medicine dispensing needle solves the problem that an existing medicine dispensing needle is likely to cut off rubber in a rubber plug in a puncture process. The medicine dispensing needle comprises a hollow rod-shaped body, a conical needle point portion and a cylinder needle rod portion are arranged on the outer surface of the body, the joint of the needle rod portion and the needle point portion is provided with a medicine inlet with a strip-shaped aperture, and the strip direction of the aperture of the medicine inlet is identical with the axial direction of the body. The outer surface of the position, at the aperture, of the body is the outer side surface of the medicine inlet, the inner wall, of the position, at the aperture of the body is the inner side surface of the medicine inlet, smooth transition is adopted for the outer side surface and the inner side surface at the aperture, the front end of the needle point portion is a needle point head, and the part, from the point, closest to the needle point head, of the aperture of the medicine inlet to the needle point head, of the needle point portion is a solid cone. The medicine dispensing needle has the three advantages that liquid medicine waste is reduced, clear cleaning is achieved, and rubber of a rubber plug is unlikely to be cut off in a puncture process.
Description
Technical field
The invention belongs to field of medical article technology, relate to a kind of needle for dispensing medicine.
Background technology
Syringe is conventional basic nursing operation by the medicinal liquid in syringe needle suction medicine bottle, is also be completed treatment and the back work done.
Existing syringe needle comprises a body, and this body comprises shank portion all in hollow form and needle tip, and needle tip offers angle.When syringe needle uses, first enter in medicine bottle by the shutoff rubber stopper in needle tip penetration of vials, then extract the medicinal liquid in medicine bottle by the angle be opened on needle tip.But above-mentioned syringe needle exists a problem: angle edge is comparatively sharp, during shutoff rubber stopper in needle tip penetration of vials, a small amount of rubber can cut by angle edge, and cut rubber can block syringe needle or enter in human body and causes potential safety hazard.
The and for example disclosed two syringe needle [application number: 200420000156.1 that portals in Chinese patent storehouse; Authorization Notice No.: CN 2710658 Y], be made up of needle point, syringe needle neck, needle shaft, pinhead handle, needle point is taper, interior in hollow, and both sides are provided with two needle point holes, and needle point hole communicates with syringe needle neck tube, syringe needle rod tube, pinhead handle one by one by needle point is hollow.Above-mentioned syringe needle is by being opened on needle point by needle point hole, reduce the distance between needle point hole and medicine bottle diapire, thus decrease the problem of liquid waste, and when actual production, needle point is made up of solid-section and hollow section two parts, and is approximately 0.5 between the axial length of hollow section and the axial length of solid-section.But this syringe needle still exists a problem: after syringe needle is processed to form, need to rinse to make syringe needle medial wall keep clean to needle wall.But above-mentioned needle point hole is opened in hollow section, cause the hollow section on needle point or some surrounded by needle tip wall, and when cleaning, cleanout fluid enters from pinhead handle and directly flows out from needle point hole, causes cleanout fluid to clean needle point well.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of needle for dispensing medicine possessing minimizing liquid waste simultaneously, clean up and the rubber in rubber stopper can not be cut in piercing process these three advantages.
Object of the present invention realizes by following technical proposal: a kind of needle for dispensing medicine, what comprise a hollow is shaft-like body, described body outer surface has conically needle tip and columniform shank portion, it is characterized in that, described shank portion and the junction of needle tip are provided with the medicine feeding hole that an aperture is strip, and the direction of described medicine feeding hole aperture strip with described body shaft to consistent, described body is the lateral surface of described medicine feeding hole at the outer surface at described aperture place, described body is the medial surface of described medicine feeding hole at the inwall at described aperture place, adopt between lateral surface and described medial surface described in described aperture place and smoothly transit, the front end of described needle tip is needle tip, described medicine feeding hole aperture from described needle tip closest approach to the needle tip of this section of needle tip be solid cone.
This needle for dispensing medicine use with syringe with the use of.During use, syringe needle enters in medicine bottle by the shutoff rubber stopper in needle tip penetration of vials, and then syringe extracts the medicinal liquid in medicine bottle by medicine feeding hole.
First being positioned at the junction of shank portion and needle tip by arranging medicine feeding hole, reducing the distance between medicine feeding hole and medicine bottle diapire, to increase the uptake of medicinal liquid, thus reduce the amount causing the waste of medicine bottle inner liquid medicine owing to extracting less than, secondly, by arrange medicine feeding hole aperture from needle tip closest approach to the needle tip of this section of needle tip be solid, namely medicine feeding hole is offered in the solid-section of needle tip, outside hollow section on needle tip is exposed to completely, distance between further reduction medicine feeding hole and medicine bottle diapire, the waste of effective minimizing medicinal liquid, enables again cleanout fluid contact with the medial surface of needle tip completely simultaneously and cleans, cleaned up by this needle for dispensing medicine, by medicine feeding hole aperture from needle tip closest approach to the needle tip of this section of needle tip be solid cone, when needle tip is inserted in shutoff rubber stopper, rubber stopper can strut toward side by the cone in solid shape, thus reduce the contact area of rubber stopper and medicine feeding hole, adding that adopting between medicine feeding hole aperture place's lateral surface and medial surface smoothly transits and stopping the jagged or cutting edge in aperture place, thus under solid cone and adopting between medicine feeding hole aperture place's lateral surface and medial surface smoothly transits both combined effect, effectively prevent and in piercing process, the rubber in rubber stopper is cut, thus avoid syringe needle blocked or human body is caused to the generation of the problems such as potential safety hazard.
In above-mentioned needle for dispensing medicine, the edge, hole of described medicine feeding hole is arcwall face.
Namely in piercing process, what contact with rubber stopper is an arcwall face, thus completely avoid the cut possibility of rubber stopper; Meanwhile, the effect of guiding, along be arcwall face, is played in the hole of medicine feeding hole to cleanout fluid, enters into amount in medicine feeding hole to increase cleanout fluid, make this needle for dispensing medicine by clean more totally, turn improve the efficiency of cleaning simultaneously.
In above-mentioned needle for dispensing medicine, one end that described medicine feeding hole is positioned on needle tip is roughly triangular in shape.
Adopt above-mentioned design, the cross-sectional area of medicine feeding hole is maximized, advantageously enters in medicine feeding hole in cleanout fluid, make this needle for dispensing medicine cleaner by what clean.
In above-mentioned needle for dispensing medicine, described medicine feeding hole one end be positioned on needle tip is roughly trapezoidal.
Adopt above-mentioned design, the cross-sectional area of medicine feeding hole is maximized, advantageously enters in medicine feeding hole in cleanout fluid, make this needle for dispensing medicine cleaner by what clean.
In above-mentioned needle for dispensing medicine, the medial surface of described medicine feeding hole comprises two the first medial surface be oppositely arranged, and the first medial surface described in two is drawn close gradually to needle tip direction and formed a spigot surface tilted relative to body axis near the position of described cone.
When cleanout fluid by medicine feeding hole enter in body, syringe needle is cleaned time, by the spigot surface that arranges inclination, cleanout fluid is played to the effect of guiding, cleanout fluid is entered in body more swimmingly, at this needle for dispensing medicine by under the cleaner prerequisite of cleaning, add the efficiency of cleaning.
Compared with prior art, this needle for dispensing medicine has the following advantages:
1, being first positioned at the junction of shank portion and needle tip by arranging medicine feeding hole, reducing the distance between medicine feeding hole and medicine bottle diapire, to increase the uptake of medicinal liquid, thus reduce the amount causing the waste of medicine bottle inner liquid medicine owing to extracting less than; Secondly, by arrange medicine feeding hole aperture from needle tip closest approach to the needle tip of this section of needle tip be solid, namely medicine feeding hole is offered in the solid-section of needle tip, outside hollow section on needle tip is exposed to completely, distance between further increase medicine feeding hole and medicine bottle diapire, the waste of effective minimizing medicinal liquid, enables again cleanout fluid contact with the medial surface of needle tip completely simultaneously and cleans, cleaned up by this needle for dispensing medicine.
2, by arrange medicine feeding hole aperture from needle tip closest approach to the needle tip of this section of needle tip be solid, outside hollow section on needle tip is exposed to completely, make when rinsing, directly can carry out high pressure rinse to medicine feeding hole in the position of medicine feeding hole, effectively improve the clean property of needle for dispensing medicine cleaning.
3, by medicine feeding hole aperture from needle tip closest approach to the needle tip of this section of needle tip be solid cone, when needle tip is inserted in shutoff rubber stopper, rubber stopper can strut toward side by the cone in solid shape, thus reduce the contact area of rubber stopper and medicine feeding hole, adding that adopting between medicine feeding hole aperture place's lateral surface and medial surface smoothly transits and stopping the jagged or cutting edge in aperture place, thus under solid cone and adopting between medicine feeding hole aperture place's lateral surface and medial surface smoothly transits both combined effect, effectively prevent the possibility cut by the rubber in rubber stopper in piercing process, thus avoid syringe needle blocked or human body is caused to the generation of the problems such as potential safety hazard.
4, the hole of medicine feeding hole is along being arcwall face, and what namely contact with rubber stopper in piercing process is an arcwall face, thus completely avoid the cut possibility of rubber stopper; Meanwhile, the effect of guiding, along be arcwall face, is played in the hole of medicine feeding hole to cleanout fluid, enters into amount in medicine feeding hole to increase cleanout fluid, make this needle for dispensing medicine by clean more totally, turn improve the efficiency of cleaning simultaneously.
5, when cleanout fluid by medicine feeding hole enter in body, syringe needle is cleaned time, by the spigot surface that arranges inclination, cleanout fluid is played to the effect of guiding, cleanout fluid is entered in body more swimmingly, at this needle for dispensing medicine by under the cleaner prerequisite of cleaning, add the efficiency of cleaning.
Accompanying drawing explanation
Fig. 1 is the perspective view of the needle for dispensing medicine in embodiment one.
Fig. 2 is the right TV structure schematic diagram of the needle for dispensing medicine in embodiment one.
Fig. 3 is that the A-A of Fig. 1 cuts open structural representation.
Fig. 4 is that the B-B of Fig. 1 cuts open structural representation.
Fig. 5 is the structure for amplifying schematic diagram at C place in Fig. 4.
Fig. 6 is the perspective view of the needle for dispensing medicine in embodiment two.
In figure, 1, body; 2, needle tip; 2a, needle tip; 2b, cone; 3, shank portion; 4, medicine feeding hole; 4a, lateral surface; 4b, medial surface; 4b1, the first medial surface; 4c, edge, hole; 5, spigot surface.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As shown in Figure 1 and Figure 4, this needle for dispensing medicine comprise a hollow and in shaft-like body 1, this body 1 outer surface has conically needle tip 2 and columniform shank portion 3, and the front end of needle tip 2 is needle tip 2a.
As shown in Figure 1, the junction of shank portion 3 and needle tip 2 is provided with the medicine feeding hole 4 that an aperture is strip, the intracavity inter-connection of medicine feeding hole 4 and body 1, and the direction of this medicine feeding hole 4 aperture strip is axially consistent with body 1.As shown in Figure 2, the needle tip 2 of medicine feeding hole 4 aperture from needle tip 2a closest approach to this section of needle tip 2a is solid cone 2b, namely medicine feeding hole 4 is offered in the solid-section of needle tip 2, thus make outside the hollow section on needle tip 2 is exposed to completely, reduce the distance between medicine feeding hole 4 and medicine bottle diapire with the waste effectively reducing medicinal liquid while, enable again cleanout fluid contact with the medial surface 4b of needle tip 2 completely to clean, this needle for dispensing medicine is cleaned up.In the present embodiment, due in existing product, on needle tip 2, the axial length of hollow section is approximately 0.5 with the ratio of the axial length of solid-section, and namely in this needle for dispensing medicine, the axial length of cone 2b is less than 1/2nd with the ratio of the axial length of needle tip 2.As shown in Figure 2, the part that medicine feeding hole 4 is positioned at needle tip 2 is obliquely installed relative to the axis of body 1.
As shown in Fig. 1, Fig. 3 to Fig. 5, the outer surface of body 1 at aperture place is the lateral surface 4a of medicine feeding hole 4, and the inwall of body 1 at aperture place is the medial surface 4b of medicine feeding hole 4, and adopts between the lateral surface 4a described in the place of aperture and described medial surface 4b and smoothly transit.In the present embodiment, the hole of medicine feeding hole 4 is arcwall face along 4c, and what namely contact with rubber stopper is an arcwall face, thus completely avoid the cut possibility of rubber stopper; Meanwhile, the hole of medicine feeding hole 4 is arcwall face along 4c, cleanout fluid is played to the effect of guiding, enters into amount in medicine feeding hole 4 to increase cleanout fluid, makes this needle for dispensing medicine more clean by what clean, turn improves the efficiency of cleaning simultaneously.Further optimization, as shown in Figure 3, the hole of medicine feeding hole 4 is the arcwall face protruded outside medicine feeding hole 4 along 4c, thus cleanout fluid is played to the effect of better guiding, makes this needle for dispensing medicine more clean by what clean, turn improves the efficiency of cleaning simultaneously.
Further optimization, as shown in Figures 3 to 5, one end that medicine feeding hole 4 is positioned on needle tip 2 is roughly triangular in shape, and the medial surface 4b of medicine feeding hole 4 comprises two second medial walls of the first medial surface 4b1 and between two first medial wall 4b1 be oppositely arranged.Two first medial surface 4b1 draw close gradually to needle tip 2 direction and are forming a spigot surface 5 tilted relative to body 1 axis near the position of cone 2b, to play the effect of guiding to cleanout fluid, cleanout fluid is enable to enter in body 1 more swimmingly, at this needle for dispensing medicine by under the cleaner prerequisite of cleaning, add the efficiency of cleaning.As shown in Figure 5, the second medial wall is positioned at place of shank portion 3.Other shapes such as medicine feeding hole 4 one end be positioned in shank portion 3 is rectangle, square.
This needle for dispensing medicine adds man-hour, carries out punching press by drift cutter to body 1 side, makes side on body 1 to turnup inside body 1, form medicine feeding hole 4, and the hole of medicine feeding hole 4 is that arc surface is formed by the curls inward of body 1 side along 4c.
This needle for dispensing medicine use with syringe with the use of.During use, syringe needle is by the shutoff rubber in needle tip 2 penetration of vials, and enter in medicine bottle, then syringe extracts the medicinal liquid in medicine bottle by medicine feeding hole 4.
Embodiment two
The present embodiment two with the structure of embodiment one and principle substantially identical, different place is: as shown in Figure 6, and medicine feeding hole 4 is positioned at one end on needle tip 2 roughly in trapezoidal.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. a needle for dispensing medicine, what comprise a hollow is shaft-like body (1), described body (1) outer surface has conically needle tip (2) and columniform shank portion (3), it is characterized in that, described shank portion (3) and the junction of needle tip (2) are provided with the medicine feeding hole (4) that an aperture is strip, and the direction of described medicine feeding hole (4) aperture strip is axially consistent with described body (1), described body (1) is the lateral surface (4a) of described medicine feeding hole (4) at the outer surface at described aperture place, described body (1) is the medial surface (4b) of described medicine feeding hole (4) at the inwall at described aperture place, adopt between the lateral surface (4a) described in described aperture place and described medial surface (4b) and smoothly transit, the front end of described needle tip (2) is needle tip (2a), described medicine feeding hole (4) aperture from described needle tip (2a) closest approach to the needle tip (2) of needle tip (2a) this section be solid cone (2b).
2. needle for dispensing medicine according to claim 1, is characterized in that, the hole of described medicine feeding hole (4) is arcwall face along (4c).
3. needle for dispensing medicine according to claim 1 and 2, is characterized in that, one end that described medicine feeding hole (4) is positioned on needle tip (2) is roughly triangular in shape.
4. needle for dispensing medicine according to claim 1 and 2, is characterized in that, described medicine feeding hole (4) one end be positioned on needle tip (2) is roughly trapezoidal.
5. needle for dispensing medicine according to claim 3, it is characterized in that, the medial surface (4b) of described medicine feeding hole (4) comprises two the first medial surface (4b1) be oppositely arranged, and the first medial surface (4b1) described in two is drawn close gradually to needle tip (2) direction and formed a spigot surface (5) tilted relative to body (1) axis near the position of described cone (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207809.6A CN104759007B (en) | 2015-04-27 | 2015-04-27 | A kind of needle for dispensing medicine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207809.6A CN104759007B (en) | 2015-04-27 | 2015-04-27 | A kind of needle for dispensing medicine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759007A true CN104759007A (en) | 2015-07-08 |
| CN104759007B CN104759007B (en) | 2018-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510207809.6A Expired - Fee Related CN104759007B (en) | 2015-04-27 | 2015-04-27 | A kind of needle for dispensing medicine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104759007B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2634726A (en) * | 1952-01-30 | 1953-04-14 | Ralph D Hanson | Hypodermic needle |
| CN2130551Y (en) * | 1992-08-03 | 1993-04-28 | 刘悦琦 | Special medicine adding syringe needle |
| CN2772520Y (en) * | 2005-02-06 | 2006-04-19 | 江苏康宝医疗器械有限公司 | Syringe of infusion bottle |
| CN2870864Y (en) * | 2006-01-05 | 2007-02-21 | 曾平江 | Dispensing syringe needles |
| CN201441696U (en) * | 2009-06-04 | 2010-04-28 | 姜云霞 | Medical injection needle |
| CN204637186U (en) * | 2015-04-27 | 2015-09-16 | 李开雄 | A kind of needle for dispensing medicine |
-
2015
- 2015-04-27 CN CN201510207809.6A patent/CN104759007B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2634726A (en) * | 1952-01-30 | 1953-04-14 | Ralph D Hanson | Hypodermic needle |
| CN2130551Y (en) * | 1992-08-03 | 1993-04-28 | 刘悦琦 | Special medicine adding syringe needle |
| CN2772520Y (en) * | 2005-02-06 | 2006-04-19 | 江苏康宝医疗器械有限公司 | Syringe of infusion bottle |
| CN2870864Y (en) * | 2006-01-05 | 2007-02-21 | 曾平江 | Dispensing syringe needles |
| CN201441696U (en) * | 2009-06-04 | 2010-04-28 | 姜云霞 | Medical injection needle |
| CN204637186U (en) * | 2015-04-27 | 2015-09-16 | 李开雄 | A kind of needle for dispensing medicine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104759007B (en) | 2018-01-05 |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |