CN212067202U - Liquid medicine transfer filter with eccentric needle and filtering structure - Google Patents
Liquid medicine transfer filter with eccentric needle and filtering structure Download PDFInfo
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- CN212067202U CN212067202U CN201921136102.0U CN201921136102U CN212067202U CN 212067202 U CN212067202 U CN 212067202U CN 201921136102 U CN201921136102 U CN 201921136102U CN 212067202 U CN212067202 U CN 212067202U
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Abstract
The utility model relates to a take eccentric needle and filtration's liquid medicine transfer filter, including mixing medicine card body (1), cavity cross needle (2) and clamping structure (3), cavity cross needle (2) are including needle file (21) and hollow needle (22), cavity needle (22) both ends syringe needle opening is progressive opening, is equipped with the filter in needle file (21) department. The progressive opening is an opening which is formed by cutting along the side direction of the conical surface of the needle heads at the two ends to gradually increase the opening area, the progressive opening at the end of the medicine mixing clamp body is a composite surface, and the end of the clamping structure is an inclined plane. Compared with the prior art, the utility model has the advantages of the security is high, application scope is wide.
Description
Technical Field
The utility model relates to a liquid medicine shifts filter especially relates to a take eccentric needle and filtration's liquid medicine shifts filter.
Background
At present, when freeze-dried powder and powder injection contained in a penicillin bottle are used, liquid medicine or water for injection in a soft infusion bag needs to be pumped out through an injector and injected into the penicillin bottle until enough liquid medicine exists in the penicillin bottle; firstly, the syringe repeatedly pierces the rubber plugs of the penicillin bottle and the soft infusion bag, so that rubber scraps are easy to generate, and the needle contacts with the liquid medicine after contacting with air, and the factors cause the liquid medicine to be polluted, thereby causing the problem of medication safety; secondly, the traditional liquid preparation method is to firstly prepare the medicine and then inject the medicine, suck the medicine in the penicillin bottle into the soft infusion bag in advance, and then bring the soft infusion bag with the prepared medicine into a ward for infusion. After the medicine is dispensed, the empty penicillin bottle is put aside, and the patient and the medical staff are completely unaware of what medicine is dispensed in the infusion soft bag and have no traceability. Once medical care personnel pay little attention to the overflow of the liquid medicine during liquid preparation, or the liquid medicine is wrongly prepared and used, the health of the medical care personnel and the treatment of patients are seriously influenced; in addition, for some special medicines, such as medicines which need to be prepared and used immediately, the traditional preparation method is very inconvenient.
Also disclosed in the prior art is a mixing tip that can achieve mixing of drug and solvent by piercing only once:
CN202459338U discloses a double-needle medicine mixing nozzle with a protective sleeve, wherein the double-needle consists of a needle seat, an upper needle and a lower needle, the upper needle and the lower needle are arranged at two sides of the needle seat, the upper needle and the lower needle are both of hollow structures and are communicated with each other, the upper needle and the lower needle extend along the edge of the needle seat to the upper needle direction to form a medicine mixing body with a cup structure, and the lower needle is sleeved with a telescopic protective sleeve; at least two anti-slip buckles which are in the shape of a barb and used for preventing the penicillin bottle from loosening are symmetrically arranged on the inner wall of the medicine mixing body. Above prior art in mix the design of medicine mouth only need puncture once alright realize mixing the medicine, prevented the liquid medicine pollution, make things convenient for medical personnel to operate, realized that the process of dispensing is simple, convenient, safety.
However, the following drawbacks remain in the practical use of the above products: the liquid passage of a part of large transfusion packages on the market is not positioned at the circle center of the transfusion cover, and the double-valve transfusion cover is provided with two liquid passages which are not positioned at the circle center of the transfusion cover; in the using process after the medicine mixing cup and the infusion bag/bottle are connected, the problems of unstable connection, displacement, shaking or liquid medicine pollution caused by the sliding-out of the medicine mixing cup easily occur, so that serious potential safety hazards exist; in the process of clinical use of the existing medicine mixing cup, a penicillin bottle cannot be pulled out after being inserted, and the replacement of the penicillin bottle cannot be realized. In the in-service clinical use, it often has certain restriction to give the liquid volume, a bag of liquid need mix in several different medicines just can satisfy the dosage demand, the current medicine bottle that mixes that changes xiLin bottle can not realize that a bag of liquid corresponds xiLin bottle of a plurality of dosage units or a bag infusion corresponds several kinds of different xiLin bottle medicines, and simultaneously, mix the unable xiLin bottle that changes of medicine cup, cause xiLin bottle to abandon the joining that just can realize next xiLin bottle medicine together with mixing the medicine cup, the medical very big waste of mixing the medicine cup consumptive material that has led to the fact.
Patent application 201811260397.2 discloses a medicine mixing cup of eccentric needle structure in area, this medicine mixing cup is including mixing the medicine card body, cavity cross needle and clamping structure. The clamping structure comprises an installation part and an elastic clamping jaw, and the medicine mixing clamping body comprises a plurality of annular cup walls arranged at intervals. The projections of the connecting ends of all the elastic clamping claws on the cross needle base along the axial direction form a first circle, the projections of the inner walls of all the annular cup walls on the cross needle base along the axial direction form a second circle, and the first circle and the second circle are partially overlapped. By designing the eccentric structure, the dosing port and the infusion port are separated in the operation process, the special port is special, and the infusion port is not exposed in the air during dosing, so that the secondary pollution of the infusion port is avoided; the infusion port and the medicine adding port are not in the same tube during medicine adding, and the infusion port is not opened, so that repeated disinfection is not needed when the infusion port is opened for infusion, the disinfection cost is saved, the operation trouble of nurses is reduced, and the safety of clinical medicine application is greatly improved.
However, the needle point of the hollow cross needle structure is in a frustum structure, the inlet and the outlet of the hollow cross needle structure are both circular, and the needle opening is small, so when liquid enters and exits, the inlet and the outlet are blocked due to liquid level tension, the liquid cannot smoothly circulate, and in addition, impurities such as particles, air and the like possibly mixed in the liquid cannot be removed in the medicine mixing process. In addition, because the inlet and the outlet are arranged at the top of the needle, when the liquid medicine is sucked back, a small amount of liquid medicine remains in the penicillin bottle under a normal state, and impurity particles in the penicillin bottle and in the operation process also enter the transfusion liquid along with the liquid medicine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a liquid medicine transfer filter with an eccentric needle and a filtering structure for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a take eccentric needle and filtration's liquid medicine transfer filter, includes that it blocks the body, cavity cross needle and clamping structure to mix the medicine, the cavity cross needle includes needle file and hollow needle, its characterized in that, cavity needle both ends syringe needle opening is progressive opening, be provided with the strengthening rib on the needle file.
Furthermore, the progressive opening is an opening which is formed by cutting along the side direction of the conical surface of the needle heads at the two ends to gradually increase the opening area, the opening surface at the end of the clamping structure is an inclined plane, the opening surface at the end of the medicine mixing clamp body is a composite surface, and the needle heads with the progressive opening are inserted into a rubber plug of a soft infusion bag or a bottle.
Furthermore, the included angle between the inclined plane and the horizontal plane is 30-60 degrees.
Furthermore, the compound surface is formed by sequentially connecting a cylindrical intersecting surface, a wedge surface, a cylindrical intersecting surface and a wedge surface which form an angle of 15-85 degrees with the axis of the hollow needle.
Furthermore, the vertical length of the composite surface of the progressive opening is 2-5 mm, and the progressive opening is a single opening or a plurality of openings which are cut along the side direction of the conical surface of the needle heads at the two ends.
Single or multiple openings cut laterally along the tapered surface of the two-end needle.
Further, the needle file matches the joint by mixing medicine card body top and clamping structure bottom and constitutes, wherein mixes medicine card body top and clamping structure bottom edge and sets up corresponding arch and recess and carry out the joint.
Furthermore, the needle stand center is provided with an empty groove, the empty groove can be spherical or hemispherical or other groove types, at least one filtering membrane is arranged on the empty groove, the filtering membrane can be arranged on the empty groove or below the empty groove, or the center of the empty groove, namely, the upper part and the lower part of the filtering membrane can be provided with the empty groove, the aim is that the liquid medicine entering from the upper hollow needle can be filtered after being suspended in the groove, the overflow of the liquid medicine due to the fact that the liquid medicine is too late to be filtered is avoided, or the liquid medicine flowing out from the upper hollow needle firstly passes through the filtering membrane and then enters the empty groove at the lower part of the filtering membrane, and then flows out.
Further, be equipped with the dead slot in the needle file, set up a slice filtration membrane in the dead slot at least, the dead slot constitutes the filter with filtration membrane, and liquid medicine passes through the filter when passing through the dead slot, the filter is used for filtering insoluble particle such as medicine crystallization, glass fragment, plastic granules and plug.
Furthermore, the hollow needle is provided with a filter at the needle seat, at least one filter membrane is arranged in the filter, and the filter is used for filtering insoluble particles such as medicine crystals, glass fragments, plastic particles and rubber plugs.
Furthermore, the thickness specification of the filtering membrane is 0.1-25 microns.
Further, the cavity cross needle sets up in mixing medicine card body bottom and along mixing medicine card body axial setting, clamping structure is connected with mixing medicine card body bottom.
Further, mix the medicine card body and include that a plurality of intervals set up mix medicine jack catch and anti-skidding knot, the anti-skidding knot sets up in mixing medicine jack catch inner wall and is the barb form, the clamping structure includes the elasticity jack catch and the anti-skidding card body that a plurality of intervals set up, the anti-skidding card body sets up in elasticity jack catch inner wall and is the barb form for firm being connected of mixing medicine cup and infusion soft bag.
The outer walls of the medicine mixing clamping jaws arranged at intervals are coincident with the axial center line of the hollow cross needle along the axial center line and are not coincident with the outer walls of the elastic clamping jaws along the axial center line.
Furthermore, the axial projection of the outer wall of the medicine mixing claw on the needle base is integrally in the axial projection of the outer wall of the elastic claw on the needle base.
Furthermore, the free end of at least one elastic claw inclines towards the outer wall of the elastic claw along the axial center line, and the inclination angle is 5-45 degrees.
Further, the number of mixing jack catch is 2 ~ 6, the number of elasticity jack catch is 2 ~ 6.
Compared with the prior art, the utility model discloses have with following beneficial effect:
(1) the needle head openings at the two ends of the hollow needle are progressive openings, and the needle head with the progressive openings is inserted into the rubber plug of the medicine mixing cup or the soft infusion bag, thereby effectively avoiding the generation of fragments when the needle head is inserted, simultaneously avoiding the blocking phenomenon caused by the liquid level tension, and improving the safety and the use convenience of the device; the progressive opening is provided with the composite surface end, so that in the process of sucking back the liquid medicine, the liquid medicine completely flows back to the infusion bag or the bottle under the action of the opening, and the waste is avoided.
(2) The hollow needle of the utility model is provided with the filter, which can filter the insoluble particles such as drug crystals, glass fragments, plastic particles and rubber plugs in the solution during the operation process, thereby avoiding secondary damage and improving the safety of drug mixing;
(3) the utility model discloses a clamping structure and the card body of mixing the medicine have guaranteed the firm of medicine mixing cup in operation process, prevent that medicine mixing cup from rocking in operation process, and the eccentric structure through clamping structure makes the application scope of medicine mixing cup more extensive.
Drawings
FIG. 1 is a perspective view of the lower end of a medical fluid transfer filter;
FIG. 2 is a perspective view of the upper end of the drug solution transfer filter;
FIG. 3 is a view of the hollow needle head at the end of the drug mixing cartridge;
FIG. 4 is a view of the hollow needle head at the end of the holding structure;
FIG. 5 is a perspective view of the drug mixing card body;
FIG. 6 is a perspective view of the clamping structure;
FIG. 7 is a diagram of a filter membrane configuration;
fig. 8 is a plan view of the drug solution transfer filter.
The reference numbers in the figures illustrate:
1. the medicine mixing clamp comprises a medicine mixing clamp body, 2 hollow cross needles, 3 clamping structures, 11 medicine mixing clamping jaws, 21 needle seats, 22 hollow needles, 23 filtering membranes, 24 reinforcing ribs, 31 elastic clamping jaws and 32 anti-skid clamp bodies.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
The utility model provides a take eccentric needle and filtration's liquid medicine to shift filter, as shown in figure 1, including mixing medicine card body 1, cavity cross needle 2 and clamping structure 3, cavity cross needle 2 sets up in mixing medicine card body 1 bottom and along mixing medicine card body 1 axial setting, clamping structure 3 is connected with mixing medicine card body 1 bottom, and wherein, clamping structure 3's axis is parallel with cavity cross needle 2, constitutes eccentric structure. As shown in fig. 2, the hollow cross needle 2 includes a needle base 21 and a hollow needle 22, and the needle base 21 is provided with a reinforcing rib 24.
The progressive opening is an opening which is cut along the conical surfaces of the needle heads at the two ends in the lateral direction, the progressive opening is an opening which is formed by cutting along the conical surfaces of the needle heads at the two ends in the lateral direction to form an opening with the gradually increased opening area, as shown in figure 3, a needle point of the hollow needle 22 at one end of the medicine mixing clamp body 1 is provided with a composite surface opening on the basis of a conical tip, and the composite surface is formed by sequentially connecting a cylindrical intersecting surface, a wedge surface, a cylindrical intersecting surface and a wedge surface which form a certain angle with the axis of the hollow needle 22; as shown in fig. 4, the needle point of the hollow needle 22 at one end of the holding structure 3 is cut with an inclined plane opening on the basis of the conical tip, the end of the hollow needle 22 mixed with the medicine card body is gradually inserted into the vial to avoid the generation of fragments, meanwhile, the medicine liquid is not remained during the backflow, the holding structure 3 is gradually inserted into the soft infusion bag to avoid the generation of fragments, and the blockage of the hollow needle 22 caused by the liquid level tension can be avoided. Meanwhile, the progressive opening compound surface can ensure that the liquid medicine completely flows back to the infusion bag and the bottle, thereby avoiding the waste of the medicine and influencing the treatment effect.
As shown in fig. 5, 6 and 7, the needle stand 21 is formed by matching the protrusions and the grooves on the medicine mixing card body 1 and the clamping structure 3, an empty groove is arranged in the needle stand 21, at least one filtering membrane 23 is arranged in the empty groove, the empty groove and the filtering membrane 23 form a filter, liquid medicine passes through the filter when passing through the hollow needle, the filter is used for filtering insoluble particles such as medicine crystals, glass fragments, plastic particles and rubber plugs, and the thickness specification of the filtering membrane 23 is 0.1-25 micrometers.
As shown in fig. 8, the axial center lines of the outer walls of the 3 medicine mixing jaws arranged at intervals along the axial direction are overlapped with the axial center line of the hollow cross needle and are not overlapped with the axial center line of the outer wall of the elastic jaw; the axial projection of the outer wall of the medicine mixing claw on the needle base is integrally in the axial projection of the outer wall of the elastic claw on the needle base.
The medicine mixing clamp body 1 comprises 3 medicine mixing clamping jaws 11 which are arranged at intervals, and the inner walls of the medicine mixing clamping jaws 11 are provided with barb-shaped anti-skidding buckles 12, so that the stable connection of a medicine mixing cup and a penicillin bottle is ensured, and the shaking is avoided;
the clamping structure 3 comprises 3 elastic clamping jaws 31 arranged at intervals, the anti-skid clamping body 32 is arranged on the inner wall of each elastic clamping jaw 31 and is in a barb shape, the free end of one elastic clamping jaw 31 inclines towards the axial center line direction of the outer wall of the elastic clamping jaw, the stable connection of the medicine mixing cup and the infusion container is ensured, and the displacement in the vertical direction and the horizontal direction is avoided.
The eccentric needle structure is suitable for infusion of which a liquid passage is not in the circle center of the infusion cover, for example, the double-valve infusion cover is stably connected in the drug mixing process, the penicillin bottle can be taken out from the drug mixing cup by inclining at a certain angle, meanwhile, the hollow needle can not generate scraps when being gradually inserted into rubber plugs of the penicillin bottle and the infusion soft bag, and the liquid flow is kept smooth.
The foregoing has described in detail certain illustrative embodiments of the invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. The utility model provides a take eccentric needle and filtration's liquid medicine to shift filter, includes that it blocks the body (1), cavity cross needle (2) and clamping structure (3) to mix the medicine, cavity cross needle (2) are including needle file (21) and cavity needle (22), its characterized in that, cavity needle (22) both ends syringe needle opening is progressive opening, is equipped with the filter in needle file (21) department.
2. The liquid medicine transfer filter with the eccentric needle and the filtering structure as claimed in claim 1, wherein the progressive opening is an opening with gradually increasing opening area formed by cutting along the side direction of the conical surface of the needle heads at the two ends, the opening surface at the end of the clamping structure is an inclined plane, the opening surface at the end of the medicine mixing clamp body is a composite surface, and the needle heads with the progressive opening are inserted into the rubber plug of the soft infusion bag or bottle.
3. The liquid medicine transfer filter with the eccentric needle and the filtering structure as claimed in claim 2, wherein an included angle between the inclined plane and a horizontal plane is 30-60 degrees.
4. The liquid medicine transfer filter with the eccentric needle and the filtering structure as claimed in claim 2, wherein the composite surface is formed by sequentially connecting a cylindrical intersecting surface, a wedge surface, a cylindrical intersecting surface and a wedge surface which form an angle of 15-85 degrees with the axis of the hollow needle (22).
5. The drug liquid transfer filter with the eccentric needle and the filtering structure as claimed in claim 1 or 2, wherein the vertical length of the composite surface of the progressive opening is 2-5 mm, and the progressive opening is a single opening or a plurality of openings which are cut along the side direction of the conical surface of the needle heads at the two ends.
6. The liquid medicine transfer filter with the eccentric needle and the filtering structure as claimed in claim 1, wherein the needle seat (21) is formed by matching and clamping the top of the medicine mixing clamp body (1) and the bottom of the clamping structure (3).
7. The drug liquid transferring filter with the eccentric needle and the filtering structure as claimed in claim 6, wherein the needle seat (21) is provided with a hollow groove at the center, at least one filtering membrane (23) is arranged on the hollow groove, and the drug liquid enters the hollow groove through the upper hollow needle, is filtered by the filtering membrane (23) and then flows out from the lower hollow needle.
8. The drug solution transfer filter with the eccentric needle and the filtering structure as claimed in claim 7, wherein the thickness of the filtering membrane (23) is 0.1-25 μm.
9. The liquid medicine transferring filter with the eccentric needle and the filtering structure according to claim 1, wherein the hollow cross needle (2) is disposed at the bottom of the medicine mixing card body (1) and axially disposed along the medicine mixing card body (1), the clamping structure (3) is connected to the bottom of the medicine mixing card body (1), wherein a central axis of the clamping structure (3) is parallel to the hollow cross needle (2) to form an eccentric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136102.0U CN212067202U (en) | 2019-07-19 | 2019-07-19 | Liquid medicine transfer filter with eccentric needle and filtering structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921136102.0U CN212067202U (en) | 2019-07-19 | 2019-07-19 | Liquid medicine transfer filter with eccentric needle and filtering structure |
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| CN212067202U true CN212067202U (en) | 2020-12-04 |
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| CN201921136102.0U Active CN212067202U (en) | 2019-07-19 | 2019-07-19 | Liquid medicine transfer filter with eccentric needle and filtering structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236943A (en) * | 2019-07-19 | 2019-09-17 | 上海丞信医疗器械科技有限公司 | It is a kind of to shift filter with the medical fluid of cam pin and filter structure |
| CN113633549A (en) * | 2021-08-11 | 2021-11-12 | 北京圣鸿医疗科技有限公司 | Ampoule bottle medicine mixing clamp body and closed type medicine dispensing transfusion connector thereof |
-
2019
- 2019-07-19 CN CN201921136102.0U patent/CN212067202U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236943A (en) * | 2019-07-19 | 2019-09-17 | 上海丞信医疗器械科技有限公司 | It is a kind of to shift filter with the medical fluid of cam pin and filter structure |
| CN113633549A (en) * | 2021-08-11 | 2021-11-12 | 北京圣鸿医疗科技有限公司 | Ampoule bottle medicine mixing clamp body and closed type medicine dispensing transfusion connector thereof |
| CN113633549B (en) * | 2021-08-11 | 2023-11-21 | 李鸿宇 | Ampoule bottle medicine mixing clamp body and medicine dispensing and transfusion joint thereof |
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