CN201612849U - Dispensing needle head adopting improved structure - Google Patents
Dispensing needle head adopting improved structure Download PDFInfo
- Publication number
- CN201612849U CN201612849U CN2010203015010U CN201020301501U CN201612849U CN 201612849 U CN201612849 U CN 201612849U CN 2010203015010 U CN2010203015010 U CN 2010203015010U CN 201020301501 U CN201020301501 U CN 201020301501U CN 201612849 U CN201612849 U CN 201612849U
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- needle
- prescription
- structure improved
- medicine bottle
- connecting portion
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Abstract
The utility model provides a dispensing needle head adopting an improved structure, belongs to the technical field of medical devices, and solves the problem of liquor waste due to incomplete liquor extraction of the conventional needle head during dispensing. The dispensing needle head adopting the improved structure comprises a needle rod with a liquor channel, and a needle bed with a liquor hole, wherein one end of the needle rod is fixedly connected with the needle bed, the liquor channel of the needle rod is communicated with the liquor hole of the needle bed, a cylindrical sleeve rod is sleeved on the needle rod, the sleeve rod is provided with a guide face for the sleeve and the needle rod inserting into the medicine bottle together, and an air guide channel used for communicating the air inside the medicine bottle with the outside air during dispensing is arranged on the side wall of the sleeve rod. The dispensing needle head adopting the improved structure relieves the labor intensity of medical staff during dispensing and avoids the waste and the pollution of the liquor.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of structure improved syringe needle that makes up a prescription.
Background technology
Medical personnel are when infusing to patient, need configuration medicinal liquid earlier, at present, preparating liquid uses disposable syringe mostly clinically, be that the hand-held disposable syringe of medical personnel extracts water for injection or diluent, inject dissolving or dilution medicine in the medicine bottle, after medicine is fully dissolved, draw again and inject in the infusion bottle.In the suction process, owing to dose in the medicine bottle reduces to produce negative pressure, the difficulty of extraction also increases gradually, and the medicinal liquid in the bottle is difficult for draining only, and reality has reduced the injection dose, does not reach due therapeutic effect.In addition, when injecting medicinal liquid toward infusion bottle, along with the increase of dose, its pressure is also increasing in the infusion bottle, so the strength of medical personnel's injection liquid also needs and then to increase, and has brought very big difficulty for the work of making up a prescription.
For this reason, people have designed a kind of bushing type automatic air intake and discharge dispensing needle, and declared patent, its notification number is CN2689956Y, this dispensing needle is by the syringe adapter of bringing the exhaust passage into, and the puncture needle of bringing exhaustor into that is fixed on the syringe adapter is formed, the upper end of air inlet-outlet pipe communicates with porting on the syringe needle, the lower end communicates with intake and exhaust channel, the overcoat needle tubing is equipped with in the outside of puncture needle, the top of overcoat needle tubing has the liquid in-out mouth, between overcoat needle tubing and the puncture needle syringe needle seal is housed.
As can be seen, the puncture needle of this dispensing needle is in reaching medicinal liquid the time, and its porting equally also reaches in the medicinal liquid.This dispensing needle is when extracting medicinal liquid, and ambient atmosphere can be passed through intake and exhaust channel, air inlet-outlet pipe and porting successively toward the interior inflation of medicine bottle, with the pressure inside and outside the balance medicine bottle.But when in medicine bottle, injecting medicinal liquid, because the increase of dose, pressure in the medicine bottle can be greater than ambient pressure, and this moment porting owing to be arranged in medicinal liquid, this hyperbar that will occur in the medicine bottle is extruded the situation of medicine bottle with balance medicine bottle external and internal pressure with medicinal liquid from air inlet-outlet pipe and intake and exhaust channel, has caused the waste of medicinal liquid.Therefore, this dispensing needle can only be used for extracting medicinal liquid in medicine bottle, and can not fundamentally solve existing problem when making up a prescription at present.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing dispensing needle, and has proposed a kind ofly in the process of making up a prescription, and extracts and injects the medicinal liquid operation and the time can make medicine bottle internal gas pressure and ambient pressure remain the equilibrated structure improved syringe needle that makes up a prescription.
The purpose of this utility model can realize by following technical proposal: a kind of structure improved syringe needle that makes up a prescription, comprise shank with liquid passage and needle stand with liquid-through hole, one end and the needle stand of described shank are connected, and the liquid passage of crossing of shank is communicated with the liquid-through hole of needle stand, it is characterized in that, be socketed with the loop bar of a tubular on the described shank, have on the loop bar and make things convenient for loop bar together to insert spigot surface in the medicine bottle with shank, the sidewall of described loop bar offers one can make the air guide channel that gas communicates with ambient atmos in the medicine bottle when making up a prescription.
In the process of making up a prescription, the gas in the medicine bottle can communicate with the external world by air guide channel.When extracting medicinal liquid in medicine bottle, the pressure in the medicine bottle can reduce, and this moment, ambient atmosphere added in the medicine bottle by air guide channel, makes air pressure and ambient pressure in the medicine bottle keep balance.When injecting medicinal liquid in medicine bottle, the pressure in the medicine bottle can increase, and the interior gas of medicine bottle this moment is discharged by air guide channel, makes air pressure and ambient pressure in the medicine bottle keep balance.The plug of shank penetration of vials is inserted into when carrying out dispensing operation in the medicine bottle, and the spigot surface on the loop bar can make things convenient for loop bar together to insert in the medicine bottle with shank, plays the effect that reduces resistance.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described air guide channel is an air slot, and this air slot is opened on the medial surface of loop bar.Air slot runs through two of loop bar, and after loop bar inserted medicine bottle, two openings of air slot laid respectively at inside and outside the medicine bottle, and gas in the medicine bottle and ambient atmos are conducted.And because air slot is opened in the inner surface of loop bar, so the outer wall of loop bar is more smooth, the resistance in the time of can reducing loop bar insertion medicine bottle.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described loop bar comprises the connecting portion of body and tubular, described connecting portion is socketed on the above-mentioned shank, one of them end face and the body of connecting portion are connected, the other end is connected with needle stand by a syndeton, and the sidewall of described connecting portion also offers passage.
The two ends of tubular connecting portion respectively with body with after needle stand is connected, form an inner chamber in inside, air guide channel is communicated with this inner chamber.Ambient atmos can enter the interior intracavity of connecting portion from the passage of connecting portion sidewall, goes into medicine bottle through air guide channel is laggard again; Gas then can enter the interior intracavity of connecting portion by air guide channel in the medicine bottle, discharges from the through hole of connecting portion sidepiece at last, finishes gas exchange.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described syndeton comprises the fixture block that is arranged on the connecting portion medial surface, and the lateral surface of needle stand has the bayonet socket for above-mentioned fixture block snapping.The end size that needle stand is connected with connecting portion is less, during connection the needle stand end is inserted in the connecting portion, and utilizes the clamping relation of fixture block and bayonet socket to finish to be connected.
As another kind of scheme, in the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described syndeton comprises the fixture block that is arranged on the needle stand lateral surface, has on the medial surface of above-mentioned connecting portion to be used for the bayonet socket that is fastened with described fixture block.Principle is with above-mentioned identical, and this scheme is that the needle stand end that size is less is inserted in the connecting portion equally, and only the position of fixture block and bayonet socket is exchanged.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described fixture block and bayonet socket are all ringwise.Can realize the circumferential clamping of fixture block and bayonet socket, connect more firm.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described air slot axially is opened on the medial wall of body.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, the quantity of described air slot is four, and circumferentially evenly is opened on the medial surface of body.Open the smooth degree that several air slots help improving gas exchange more.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described spigot surface is tapered, and is positioned at the end that body inserts an end of medicine bottle.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described loop bar also includes a shoulder block, and described shoulder block is fixedly installed on the cover external surface.Shoulder block plays position-limiting action, prevents that body from inserting when inserting medicine bottle deeply and make whole section air guide channel all be positioned at medicine bottle.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described shoulder block is arranged on the end of body and circumferentially is connected with above-mentioned connecting portion ringwise.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described shoulder block, loop bar and connecting portion are in one-piece connection.
In the above-mentioned a kind of structure improved syringe needle that makes up a prescription, described body closely is socketed on the shank, and both are fixed together.
Compared with prior art, this structure improved syringe needle that makes up a prescription is provided with the loop bar with air guide channel on shank, this air guide channel carries out gas communication with medicine bottle inside with extraneous conducting, make air pressure and ambient pressure in the medicine bottle remain balance, the work of making up a prescription saves time, laborsaving, greatly facilitate medical personnel, alleviated their labor intensity.Simultaneously, the situation that overflow of drug fluid causes drug waste and pollution can not appear during dispensing operation.
Description of drawings
Fig. 1 is the sectional structure sketch map of this structure improved syringe needle that makes up a prescription.
Fig. 2 is the main TV structure sketch map of loop bar in this structure improved syringe needle that makes up a prescription.
Fig. 3 is the cutaway view of Fig. 2 at the A-A place.
Fig. 4 is the sectional structure sketch map of needle stand in this structure improved syringe needle that makes up a prescription.
Fig. 5 is the sketch map when originally the structure improved syringe needle that makes up a prescription carries out dispensing operation.
Among the figure, 1, shank; 11, cross the liquid passage; 2, loop bar; 21, shoulder block; 22, spigot surface; 23, air slot; 24, body; 3, needle stand; 31, liquid-through hole; 32, bayonet socket; 4, plug; 5, medicine bottle; 6, connecting portion; 61, inner chamber; 62, passage; 63, fixture block.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but this utility model be not limited to these embodiment.
As shown in Figure 1, this structure improved syringe needle that makes up a prescription comprises shank 1 with liquid passage 11 and the needle stand 3 with liquid-through hole 31, and the end of shank 1 is connected by binding agent and needle stand 3, and the liquid passage 11 of crossing of shank 1 is communicated with the liquid-through hole 31 of needle stand 3.Closely be socketed with a loop bar 2 that is connected with needle stand 3 on the shank 1, have when making up a prescription on the medial wall of loop bar 2 and can make the air guide channel that gas communicates with ambient atmos in the medicine bottle 5.In the present embodiment, air guide channel is an air slot 23, axially is opened in the inner surface of loop bar 2.
As shown in Figures 2 and 3, loop bar 2 is tubular, comprise body 24 and connecting portion 6, above-mentioned air slot 23 axially is opened on the medial wall of body 24, quantity is four and circumferential uniform distribution, and the inner of body 24 is provided with the spigot surface 22 of taper, and the end, outer end of body 24 is provided with outwards outstanding annular shoulder block 21, annular shoulder block 21 is connected with above-mentioned connecting portion 6 circumferential seals, makes connecting portion 6 and body 24 concentrics.The medial surface of connecting portion 6 is provided with a radially outstanding annular fixture block 63, and the sidewall of connecting portion 6 also offers some passages that run through 62.In the present embodiment, shoulder block 21, body 24 and connecting portion 6 threes are integral structure.
As shown in Figure 4, the end size that needle stand 3 is connected with connecting portion 6 is less, and offers annular bayonet socket 32 on the lateral wall, and this bayonet socket 32 is complementary with above-mentioned fixture block 63.
As shown in Figure 5, when making up a prescription, to the make up a prescription shank 1 of syringe needle of the dispensing instrument that has this structure improved syringe needle that makes up a prescription is inserted in the medicine bottle 5, body 24 on the shank 1 also is inserted in the medicine bottle 5 with the plug 4 of shank 1 penetration of vials 5, the tapered guide surface 22 of body 24 the inners can help body 24 to pierce through plug 4 smoothly to be inserted in the medicine bottle 5 well, and body 24 outer walls are smooth, also can reduce the resistance when inserting.Shank 1 end extend in the medicinal liquid, and body 24 is shorter, does not extend in the medicinal liquid.The inner port of the air slot 23 on the body 24 is positioned at medicine bottle 5, and external port is in communication with the outside by connecting portion 6 inner chambers 61 and passage 62, so, just gas and ambient atmos in the medicine bottle 5 has been communicated with.
When dispensing instrument injected waters for injection or diluent in the medicine bottle 5, water for injection or diluent were successively through liquid-through hole 31 with cross liquid passage 11 and be injected in the medicine bottle 5, and the medicinal liquids in the medicine bottle 5 increase, air in the compression medicine bottle 5.By air slot 23, inner chamber 61 and passage 62 gases at high pressure are discharged successively when producing malleation in the medicine bottle 5, up to bottle internal gas pressure and ambient pressure balance.When dispensing instrument extracts medicinal liquid in medicine bottle 5, produce negative pressure in the needle stand 3, gas is pressed into medicinal liquid the dispensing instrument from crossing liquid passage 11 and liquid-through hole 31 in the medicine bottle 5, and bottle giving drugs into nose liquid measure reduces, and the pressure in the medicine bottle 5 reduces.When producing negative pressure in the medicine bottle 5, ambient atmos replenishes in the medicine bottle 5 through passage 62, inner chamber 61 and air slot 23 successively, with balance medicine bottle 5 inner and outer air pressures.
When shank 1 and body 24 inserted when dark, when just the air slot 23 of body 24 all was positioned at medicine bottle 5, the shoulder block 21 that plays position-limiting action leaned on plug 4.Passage 62 on the connecting portion 6 still is positioned at outside the medicine bottle 5, does not influence in the medicine bottle 5 and extraneous gas exchange.
Specific embodiment described herein only is that this utility model spirit is illustrated.This utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. structure improved syringe needle that makes up a prescription, comprise shank (1) with liquid passage (11) and needle stand (3) with liquid-through hole (31), one end of described shank (1) and needle stand (3) are connected, and the liquid passage (11) of crossing of shank (1) is communicated with the liquid-through hole (31) of needle stand (3), it is characterized in that, be socketed with the loop bar (2) of a tubular on the described shank (1), have on the loop bar (2) and make things convenient for loop bar (2) together to insert spigot surface (22) in the medicine bottle (5) with shank (1), the sidewall of described loop bar (2) offers one can make the air guide channel that gas communicates with ambient atmos in the medicine bottle (5) when making up a prescription.
2. a kind of structure improved syringe needle that makes up a prescription according to claim 1 is characterized in that described air guide channel is air slot (23), and this air slot (23) is opened on the medial surface of loop bar (2).
3. a kind of structure improved syringe needle that makes up a prescription according to claim 1, it is characterized in that, described loop bar (2) comprises the connecting portion (6) of body (24) and tubular, described connecting portion (6) is socketed on the above-mentioned shank (1), one of them end face of connecting portion (6) and body (24) are connected, the other end is connected with needle stand (3) by a syndeton, and the sidewall of described connecting portion (6) also offers passage (62).
4. a kind of structure improved syringe needle that makes up a prescription according to claim 3, it is characterized in that, described syndeton comprises the fixture block (63) that is arranged on connecting portion (6) medial surface, and the lateral surface of needle stand (3) has the bayonet socket (32) for above-mentioned fixture block (63) snapping.
5. a kind of structure improved syringe needle that makes up a prescription according to claim 3, it is characterized in that, described syndeton comprises the fixture block (63) that is arranged on needle stand (3) lateral surface, has on the medial surface of above-mentioned connecting portion (6) to be used for the bayonet socket (32) that is fastened with described fixture block (63).
6. according to claim 4 or 5 described a kind of structure improved syringe needles that make up a prescription, it is characterized in that described fixture block (63) and bayonet socket (32) are all ringwise.
7. according to claim 3 or 4 or 5 described a kind of structure improved syringe needles that make up a prescription, it is characterized in that described spigot surface (22) is tapered, and be positioned at the end that body (24) inserts an end of medicine bottle (5).
8. according to claim 3 or 4 or 5 described a kind of structure improved syringe needles that make up a prescription, it is characterized in that described loop bar (2) also includes a shoulder block (21), described shoulder block (21) is fixedly installed on body (24) outer surface.
9. a kind of structure improved syringe needle that makes up a prescription according to claim 8 is characterized in that, described shoulder block (21) is arranged on the end of body (24) and circumferentially is connected with above-mentioned connecting portion (6) ringwise.
10. according to claim 3 or 4 or 5 described a kind of structure improved syringe needles that make up a prescription, it is characterized in that described body (24) closely is socketed on the shank (1), and both are fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203015010U CN201612849U (en) | 2010-01-25 | 2010-01-25 | Dispensing needle head adopting improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203015010U CN201612849U (en) | 2010-01-25 | 2010-01-25 | Dispensing needle head adopting improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201612849U true CN201612849U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203015010U Expired - Fee Related CN201612849U (en) | 2010-01-25 | 2010-01-25 | Dispensing needle head adopting improved structure |
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| CN (1) | CN201612849U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884535A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Double-layer sample-sucking needle |
| CN105997510A (en) * | 2016-08-03 | 2016-10-12 | 深圳市库贝尔生物科技股份有限公司 | Puncture needle |
| CN108056918A (en) * | 2018-01-15 | 2018-05-22 | 衡阳桑谷医疗机器人有限责任公司 | Dispensing syringe with degassing function |
| CN112315795A (en) * | 2020-09-10 | 2021-02-05 | 美蓝(杭州)医药科技有限公司 | Integrated dispensing injector and using method thereof |
| CN112915013A (en) * | 2020-09-10 | 2021-06-08 | 美蓝(杭州)医药科技有限公司 | Integrated dispensing injector and using method thereof |
| CN115607445A (en) * | 2022-07-01 | 2023-01-17 | 湛江健力源医疗用品有限公司 | Side-guide-tube-type totally-enclosed safe dispensing device |
-
2010
- 2010-01-25 CN CN2010203015010U patent/CN201612849U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884535A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Double-layer sample-sucking needle |
| CN105997510A (en) * | 2016-08-03 | 2016-10-12 | 深圳市库贝尔生物科技股份有限公司 | Puncture needle |
| CN108056918A (en) * | 2018-01-15 | 2018-05-22 | 衡阳桑谷医疗机器人有限责任公司 | Dispensing syringe with degassing function |
| CN112315795A (en) * | 2020-09-10 | 2021-02-05 | 美蓝(杭州)医药科技有限公司 | Integrated dispensing injector and using method thereof |
| CN112915013A (en) * | 2020-09-10 | 2021-06-08 | 美蓝(杭州)医药科技有限公司 | Integrated dispensing injector and using method thereof |
| CN112915013B (en) * | 2020-09-10 | 2022-01-04 | 美蓝(杭州)医药科技有限公司 | Integrated dispensing injector and using method thereof |
| CN115607445A (en) * | 2022-07-01 | 2023-01-17 | 湛江健力源医疗用品有限公司 | Side-guide-tube-type totally-enclosed safe dispensing device |
| CN115607445B (en) * | 2022-07-01 | 2024-03-01 | 广东健力源医疗科技有限公司 | Side conduit type totally-enclosed safety dispensing device |
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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: 20101027 Termination date: 20130125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |